JP5142053B2 - door - Google Patents

Description

The present invention relates to a door.

When opening a door, a door that stores a force in a spring and closes it when it is released is generally widely used as a product called a door closer. These products take measures to reduce the impact when the door closes by reducing the speed of the door that accelerates as the door closes with the force of the spring, but the extra force when opening the door There was a drawback that would be necessary.

There is Patent Document 1 relating to a “door that automatically closes when a hand is released from a handle” that operates only with a spring without using a reduction device using an oil damper. This is an attempt to “decelerate approximating a stop at the time of collision” by changing the traveling direction of the “wheel at the tip of the arm that pulls the door” to a right angle immediately before closing, and on the sliding surface bent in the right angle direction. In order to alleviate the impact when the wheels collide, the angled part is made concave or the sliding surface is “arc having a radius from the rotation axis of the arm to the tip of the wheel”.

The force that presses the door against the door is greater than the force that causes the door to close without permission, and the maximum force for pressing the door against the door is required at the final stage of closing the door. Increasing the strength of the spring to press the door against the door makes it difficult to rotate the door slowly, causing it to rotate at a stretch and collide with the door with both heavy impact sounds and pinch your fingers etc. There was a risk of an accident

Japanese Patent Application No. 2007-087561

The problem to be solved by the invention is “how to make it possible to safely operate a door that can be closed and opened without permission from the door”. The problem is whether to decelerate the speed, stop it just before the door closes, and press the door against the door.

The first problem to be solved by the invention is “How to make a drive unit that moves with a spring that shrinks in a moment”. The second problem is “Even if the door is closed by the force of a weak spring” The third challenge is "How to remove the dynamic inertia attached to the door just before closing" and the fourth challenge is "When to close" The fifth task is "How can I prevent my fingers and body from being pinched?" It is also pursued when opening convenience only for the time. "

As described in FIGS. 13 to 17 and the description related thereto, the speed reducer of the drive unit that transmits the rotation to the door of the means for solving the first problem is the drive unit 2 that approaches each other as the spring expands and contracts. One element has a spiral-shaped wheel with an outer periphery of a spiral curve, and the other is fitted with a friction surface in contact with the outer periphery of the wheel, so that the distance between the two elements is longer When the spiral wheel rotates on the friction surface, the rotation speed is reduced by the friction associated with the long running distance, and the spring works effectively when the door closes, and the spring works invalid when the door opens. A device that reduces the expansion / contraction speed, or

A rotating shaft is attached to each of the two elements of the drive unit that come close to each other as the spring expands and contracts, and a circular wheel or a spiral-shaped wheel with an outer periphery with a spiral curve on one rotating shaft and a spiral curve on the other A spiral-shaped wheel with a polygonal outer circumference was attached and contacted with each other so that they approached while rotating in the opposite direction, compared to the approaching length of the distance between the two rotating shafts. A device that reduces the expansion and contraction speed of the spring due to the long outer circumference. When a circular wheel is attached to one rotating shaft and a spiral wheel having an outer circumference with a spiral curve is attached to the other, the spiral curve In a spiral-shaped wheel having an outer periphery that is a polygonal line, the vertical bisector of each polygonal line is in contact with a common circle centered on the rotational axis of the spiral-shaped wheel, and the vortex When two points on both ends of each broken line on the outer periphery of the curved curve are in contact with the circular wheel at the same time, they will rotate with the approach of the two rotating shafts even in a stationary state, and contact each other in the opposite direction. Is a device that decelerates the expansion and contraction speed of the spring that is repeatedly stopped and rotated, and repeatedly decelerated and accelerated.

Each of the two elements of the drive unit that come close to each other as the spring expands and contracts, has a plurality of sets of circular wheels and a spiral shape having an outer periphery with a spiral curve as a polygonal line. Attach the wheels at different distances between the rotating shafts in each set so that the two points on both ends of each polygonal line on the outer circumference of each set of spiral-shaped wheel spiral curves do not touch the circular wheel at the same time, It is a device that decelerates the expansion and contraction speeds of the springs, where the chances of stop and rotation repeated for each approaching approach are multipled.

As described in FIGS. 1 to 10 and the related description, the drive device of the drive unit that transmits the rotation to the door of the means for solving the second problem is “rotates about the rotation axis attached to the door frame” A device that attaches to a rotating arm, an arm that is rotatably supported around a rotating fulcrum that is attached to a rotating arm that is located at a distance from the rotating axis of the rotating arm, and an arm that prevents rotation of the arm and is attached to the rotating arm. It consists of a pulling spring that attaches one fulcrum to the tip that is the opposite end of the arm's rotation fulcrum and attaches the other fulcrum to a fulcrum that is not attached to the rotation arm that is far from the rotation axis of the rotation arm. When the rotary arm rotates with the rotation of the rotary arm in the state of being separated from the above-mentioned contact, the extension of the tension spring and the change in the distance from the rotation axis of the rotary arm of the tension spring are large. When the door is pressed against the door by the force of the arm and the arm rotates integrally with the rotating arm in contact with the contact, the length from the connecting shaft of the arm to the fulcrum of the pulling spring, that is, the arm If the length is equal to the distance between the rotation axis of the arm and the rotation axis of the rotation arm, the connecting shaft of the pulling spring and the arm and the rotation axis of the plate are coincident and there is no expansion and contraction of the pulling spring, and the rotation of the rotating arm is involved. If the arm length is longer than the distance between the rotation axis of the arm and the rotation axis of the rotation arm, the pulling spring and the connecting shaft of the arm will move circularly around the rotation axis of the rotation arm and pull. A spring that expands and contracts slightly, and rotates the door with the force of the spring generated at this time. The above drive device consisting of different springs with different arms and different springs changes the position of the contact and the position of the spring fulcrum to rotate the arm. Take By kicking it, to start the another device immediately before the operation of one device is finished, an effect that the respective drive device has on the rotation of the rotary arm overlapped with each other driving device. "

As described in FIG. 13 and the related description, the means for solving the second problem and solving the third problem is “attachment to the connecting shaft and the connecting shaft at the tip of the rotating arm of the drive unit that transmits the rotation to the door” The structure in which the connecting shaft is connected and the rotation of the rotating arm is transmitted to the rotation of the door includes the first link connected to the connecting shaft at the tip of the rotating arm, and the connecting shaft attached to the first link and the door. The two links of the second link to be connected and the wheel which is in contact with the sliding surface of the first link and attached to the door frame, and when the sliding surface of the first link moves along the wheel, the door The angle formed by the rotation arm rotating from the state where the two links are fully opened and the two arms are in a straight line and the axial direction of the two links is gradually decreased, and the angle between the first link and the first link is almost right before the door is closed. The connection with the second link is When the direction is suddenly changed to a substantially right angle immediately before closing, the force that the first link pulls the second link becomes ineffective, and the connecting portion between the first link and the second link The door reduces the rotational speed of the door by pressing the friction surface to remove the dynamic inertia attached to the door, and at the same time, the first link acts as a lever with the wheel as a fulcrum to press the door against the door. Is.

As described in FIGS. 10 to 12 and the related description, “the drive for transmitting the rotation to the door” is a means for solving the fourth problem. A first link connected to the connection shaft at the tip of the rotary arm and a connection shaft attached to the door are connected between the connection shaft at the tip of the rotary arm of the unit and the connection shaft attached to the door. Connected by two links of the second link to transmit the rotation of the rotary arm to the rotation of the door. The rotary arm rotates and closes when the door is fully open, and the rotary arm and the first link form. The angle gradually decreases, and the rotating arm and the link A1 rotate as they are in contact with each other immediately before the door closes, and the three connecting shafts connecting the two links are not in a straight line, and the two links Is the ream In the state of being bent at the point, the connecting shaft position of the first link and the second link should be on the far side from the straight door rotating shaft passing through the rotating arm of the rotating arm attached to the door frame and perpendicular to the door. When the rotating arm is further rotated, the connecting shaft of the first link and the second link rotates around the rotating shaft attached to the door frame while being in a straight line from the bent state of the two links. The door is characterized by being able to rotate the door in the opening direction, and within the range of rotation in the door opening direction, the door can be moved by the rotation of the rotating body, but it will not move when the door is pressed. Yes or

As described in FIG. 18 and the related description, “the first link connected to the connecting shaft at the tip of the rotary arm of the drive unit that transmits the rotation to the door, the second link attached to the first link and the door” The wheel attached to the connecting shaft with the second link that connects with the link is formed of a string that connects the ends of the arc centering on the position just before the door of the connecting shaft between the door and the second link is closed. The door is characterized in that by moving the sliding surface, the door rotates in the opening direction and stops immediately before the door is closed ", or

As described in FIG. 19 and the related description, “the end of the first link rotatably supported around the rotation fulcrum attached to the door frame and the spring around the rotation fulcrum attached to the door are arranged. While securing the wheel attached to the tip of the second link that rotates with force, the first link and the second link face each other and rotate in opposite directions, so that the two links when the door is fully open extend in a straight line As the door is closed, it is folded and overlapped, and immediately before closing, the wheel attached to the tip of the second link moves away from the tip of the first link, and the door and the second link By moving the sliding surface formed by the string connecting the ends of the arc centering on the position just before the door of the connecting shaft closes, the door rotates in the opening direction and stops once before the door closes Door Or

As described in FIG. 17 and the related description, “a spiral-shaped wheel or circular shape having an outer periphery of a spiral curve with a magnet built-in around a straight line connecting the rotation axis and a point on the outer periphery of the wheel farthest from the rotation axis. The eccentric wheel is attached to the door with the farthest wheel outer circumference point and contacted, and the shaft has an axis on the straight line just before the door is closed, and is fixed so that the same poles as the magnets face each other. By incorporating a magnet in the door, the repulsive force generated when the same poles approach each other, and the spiral wheel or circular eccentric wheel rotates together with the magnet that attaches to the door without colliding. When the spiral wheel or the circular eccentric wheel rotates while rubbing a longer length than the distance between the rotation axis of the circular eccentric wheel and the door stop, the approach speed is reduced, It is a device that presses the door against the door with the suction force generated when the different poles approach each other when rotating until the poles face each other, or "a straight line connecting the rotation axis and the point on the outer circumference of the wheel farthest from the rotation axis" Both shaft centers are identical to each other so that the farthest wheel outer point approaches two spiral wheels or two circular eccentric wheels having a spiral curve outer periphery with a magnet and a built-in magnet. These are repulsive forces that occur when the poles approach each other and are attached to the door and the door frame, facing each other, and with the magnets in both sides without a collision. As the wheel rotates, the speed of approach approaches by rotating each other and rotating a long length compared to the length of the distance between the rotation axis of the spiral-shaped wheel or the circular eccentric wheel and the door stop. A device that presses the door against the door with the suction force generated when the different poles approach each other when the poles are decelerated and rotate until they face each other. And a device characterized by being different when different polars approach each other, or

As described in FIG. 21 and the related description, “around a rotation axis attached to a rotating plate” In the range where the door fixed to the plate is slightly rotated just before closing, with both side surfaces of the door pivotally supported being held between the stop in the rotation direction and the stop in the retraction direction. The door can be attached to the plate by moving the heavy object attached to the door in the radial direction of the door while keeping the door retractable while keeping the rotation stop in the rotation direction away from the side of the door. A revolving door that rotates around the rotating axis and opposes the force in the retracting direction applied to the door, or

As described in FIGS. 22 and 23 and the related description, “a position away from the side surface of the door is rotatably supported by a rotating shaft attached to the plate, and can be freely rotated by another rotating shaft attached to the plate. The wheel at the tip of the arm supported by the shaft fits into a recess formed on the side surface of the door's rotating shaft, and at the same time circularly moves outside the circumferential running surface around the rotating shaft of the plate. The door is fixed to the plate by pressing the dent with a force toward the rotation axis at a position away from the side of the door, and the dent is discharged from the dent only within a slight rotation range immediately before the door closes. When the external force is applied to the side surface opposite to the rotation axis of the door, the wheel at the tip of the arm is discharged from the recess and can rotate freely. Structure In the revolving door or only within the range of slight rotation just before the door is closed, it is forcibly ejected from the recess and accommodated inside the circumferential sliding surface, and the door is simultaneously placed on the plate. It is a revolving door that rotates around the attached rotating shaft and opposes the force in the retracting direction applied to the door.

As described in FIGS. 25 to 29 and the related description, “one side of the door” is a means for solving the fifth problem. The other fulcrum of the spring with the fulcrum attached to the door is attached to the tip of a rotating body that has a rotation axis on the bisector of the maximum rotation angle of the door and rotates opposite the door, and has two gears with different number of teeth Alternatively, a slight rotation of the door at the initial stage of rotation is converted into a large rotation of the rotating body by a transmission mechanism composed of a single gear with a different radius of rotation, and the other fulcrum of the spring passes through the rotation axis of the door. A door revolving door that continues to rotate by moving to a position where the center line and the spring axis do not match "or

As described in FIGS. 27, 30 and 32 and the related description, “the other fulcrum of the spring with one fulcrum attached to the door has a rotation axis on the bisector of the maximum rotation angle of the door, Attached to the tip of a rotating body with a long hole that accommodates a wheel attached to the tip of an arm that is pivotally supported around a rotation fulcrum that rotates opposite to the door, and the door starts to rotate slightly While the wheel is rotating, the wheel fits and presses into a recess provided in the elongated hole to rotate the rotating body, and the other fulcrum of the spring passes through the rotation axis of the door and the radial door center line and the spring shaft A revolving door in which, after moving to a position where it does not coincide with the core wire and rotating the door, the wheel escapes from the recess and retreats to a portion where the wheel in the elongated hole does not act. " Or

As described in FIG. 33 and the related description, “the rotation fulcrum attached to the upper surface of the door and the rotation fulcrum fixed to the door frame are connected by two links, and the wheel is attached to the tip of the rotation fulcrum attached to the upper surface of the door. The arm is rotatably attached, and the wheel attached to the tip of the arm slides in a horizontal plane perpendicular to the door having a recess centered around the rotation axis of the door and the wheel being fitted at both ends of the circumference. It is a revolving door that moves on the surface, and the arm and the link that is connected to the rotation fulcrum that attaches to the upper surface of the door are connected by a pull spring, so that the wheel is fixed to the door frame as seen from the door. When the door is on the side, the two links extend straight and the door rotates.When the wheel is on the same side as the rotation fulcrum fixed to the door frame, the two links are folded and the door rotates. After the wheels are inserted into the recesses at both ends of the circumference, when the door starts to rotate, the arm rotates to follow the wheel with respect to the direction of travel of the door, and the door starts to rotate. It is a revolving door that continues to rotate with the force of the above-mentioned pulling spring in the opposite direction.

The number of indoor doors is larger and the frequency of use is higher than the doorway to the outside, such as the entrance door. The door of the present invention can be attached to a door frame with low strength, and is suitable for indoor doors. In addition, it can be used for revolving doors such as automobile doors and lids for home appliances.

FIGS. 1 to 9 illustrate the basic structure of a drive part of a door that is moved by a spring. FIG. 10 shows an embodiment in which the drive part of FIGS. When a plurality of driving parts shown in FIG. 9 are used in combination, the respective characteristics are overlapped to bring about an effect.
The rotating body D in the drawing is rotated by a spring V in which the arm A is connected in series, and the rotation of the rotating body is transmitted to the rotation of the door. The rotating body D rotates around the rotation axis I, rotates left and right around T0, and stops rotating by Gd.

In the arm A, a tension spring V is rotatably connected to a connecting shaft Sa at one end of the arm A, and the tension spring V and the arm A connected in series have one end other than the rotation axis I of the rotating body J. The other end of the rotating body J is rotatably connected to the place S to a place Q other than the planar I where the rotating body J rotates, rotates about the rotation axis Q, and stops rotating by hitting Ga. In the following, the numbers with + − included in the subscripts of the symbols in the figure correspond to the rotation angle at the position of the rotating body D.

When the rotating body D is on the straight line T0, the rotating body D, the spring V, and the arm A are aligned, and all of the rotating body D, the spring V, and the arm A are stationary. When the rotating body D rotates clockwise, the door rotates in the opening direction, the length of the pulling spring V is extended, and the force to pull the door back to the pulling spring V is stored. In addition, when the door rotates counterclockwise, the door rotates in the closing direction, and the length of the pulling spring V is shortened so that the door is pulled back by the pulling spring V.

There is a difference in the rotational moment generated between the rotation before the rotating body D hits the contact G and the subsequent rotation, and when the rotating body D rotates away from the contact G, the spring V and the arm A are in a straight line. The distance between the spring V and the axis of the arm A and the rotation center O of the rotating body D changes as the rotating body D rotates, the length of the spring V also changes greatly, and the rotational moment also increases. When the rotating body D rotates while contacting the contact G, the spring V and the arm A are bent, and the "distance between the axis of the spring V and the arm A and the rotation center O of the rotating body D" is the rotation of the rotating body D. However, it does not change greatly, and the length of the spring V does not change greatly, so the rotational moment does not increase.

“When rotating body D is in contact with G and rotates counterclockwise as indicated by ⇒” in the figure, when the door is rotating in the closing direction, the rotation that occurs when the door only rotates The moment is small, “When rotating body D hits away from G and rotates counterclockwise as indicated by ⇒ in the figure”, “After rotating in the direction in which the door closes, the door rotates immediately before closing. "Rotation until the door is pressed against the door", the rotational moment for pressing the door against the door is large.
When the rotating body D is in the vicinity of the straight line T0, immediately before the door is closed, the transition from "rotation that only rotates the door" to "rotation that presses the door against the door" is shown in FIGS. In various cases, they exhibit different characteristics.

In FIG. 1, a tension spring V is attached to a location Sd other than the rotational axis I of the rotating body J, the arm A rotates about the rotational axis Q, and the rotation is stopped by Ga. The case where it is shorter than the distance between the rotation axis Q and the rotation axis Q will be described.

The rotating body J shown in FIG. 1 remains stationary at three locations. When the fulcrum Sd of the spring is on the straight line T0 as shown in FIG. 1B, the length of the spring is maximum and the fulcrum Sd of the spring V is straight. When it moves slightly from T0, it moves in the direction of movement and reaches the end point at once. The stationary state in which the fulcrum Sd of the spring is on the straight line T0 is a very unstable state. However, even if the fulcrum Sd of the spring V is slightly moved from the straight line T0, the amount of radial movement of the fulcrum Sd is small. A small change in the length of the spring has little change in the length of the small spring, and it remains stationary or exhibits a slow movement.

The case where the rotating body D moves from the position T + 30 to the position T-30 will be described. As shown in FIG. 1C, the fulcrum Sd of the spring V rotates around the rotation axis I and stops rotating by Gd30. The arc Rs indicates a part of a circle centered on the rotation axis I with the length of the spring when the spring fulcrum Sd is on the straight line T0 as the radius, and the spring fulcrum Sd moves from the position T + 30 to the position T0. This means that the length of the spring increases when moving.

As shown in FIG. 1A, the fulcrum Sd of the spring V rotates about the rotation axis I and stops rotating by Gd-30. An arc Rq indicates a part of a circle centering on the rotation axis Q with the length of the arm A and the length of the tension spring V and the arm A connected in series when the spring fulcrum Sd is on the straight line T0, and the spring fulcrum Sd is This means that the length of the spring decreases when moving from the position of T0 to the position of T-30.

When the rotating body J moves from the position T + 30 to the position T-30, it stops in the middle, but it is necessary to apply a force to the rotation until it reaches the position where it is stationary. Without rotation, it rotates freely until it hits the end point.

2 is the same as FIG. 1, the fulcrum of one side of the tension spring V is attached to “a place Sd other than the rotation axis O of the rotating body D”, and the other fulcrum is attached to Sq at the tip of the arm A. The rotation axis Q of the arm A is between the tip Sq of the arm A and the rotation axis O side of the rotating body D, and the arm A and the rotating body J rotate in opposite directions. The rotating body D rotates from the position T + 90 to the position T-90, and the rotation is stopped by the contact Gd.
In FIG. 2B, the rotating body, the spring and the arm are in a straight line and are stationary, the length of the spring is maximum, the rotating body or the arm rotates to the left or right, and the rotating body, the spring and the arm are straight. When it is no longer on the line, the rotating body or arm rotates and rotates in the direction until both hit the end. Arcs Rs shown in FIGS. 1 (a) and 1 (c) indicate a part of a circle centered on the rotation axis I with the spring length being the radius when the spring fulcrum Sd is on the straight line T0, and the spring fulcrum Sd is This means that the length of the spring increases when moving from the position T + 90 to the position T0.

Assuming that the door is closed when the rotating body D is at the position T0, the door is a door that is fully opened with a slight push in either the left or right direction.

In FIG. 3, as with FIG. 1, the tension spring V has one fulcrum attached to “a place Sd other than the rotation axis O of the rotating body D” and the other fulcrum attached to Sq at the tip of the arm A. Arm A is the same length as the “distance between the rotation axis O of the rotating body D and the rotation axis Q of the arm A”, and until the rotating body D rotates from the T-30 position to the T0 position. Although the length of the spring is increased, the rotation is stopped by the contact G, and after the position of Sq at the tip of the arm A coincides with the position of the rotation axis O of the rotating body D, the rotating body D moves from the position of T0 to T + 30. The length of the spring is constant until it is rotated to position.

This means that the spring force is accumulated until the rotating body D rotates from the T-30 position to the T0 position, but until the rotating body D rotates from the T0 position to the T + 30 position, the spring force is applied to the rotating body D. It means not involved in rotation. This spring mechanism works only when the door is pressed against the door, meaning that it does not participate at all in other door rotations. If they are prepared, it means that each works effectively only in its own area and does not disturb each other.

4, as in FIG. 1, one fulcrum of the tension spring V is attached to “a place Sd other than the rotation axis O of the rotating body D”, and the other fulcrum is attached to Sq at the tip of the arm A. The length of the arm A is longer than the “distance between the rotation axis O of the rotating body D and the rotation axis Q of the arm A”, and until the rotating body D rotates from the T-30 position to the T0 position, Although the length is long, after the rotation is stopped by the hit G, the fulcrum Sd of the spring V of the rotating body D is the rotating shaft until the rotating body D rotates from the position T0 to the position T + 30. The length of the spring becomes longer by circular motion around O. This means that the spring force is accumulated until the rotating body D is rotated from the T-30 position to the T0 position, but the spring force is accumulated until the rotating body D is rotated from the T0 position to the T + 30 position. It means that the power of. The longer the length of arm A is than the “distance between rotating shaft O of rotating body D and connecting axis Q attached to rotating body D”, the time until it rotates from position T0 to position T + 30. The spring force stored in is large.

In the case of FIG. 4, when the door is opened, when the rotating body D comes into contact with G and rotates clockwise in the direction opposite to ⇒ in the figure, the pulling spring V is loosened, so the door opens freely. Rotate in the direction.
When the door is closed, it is rotated by the force of “a spring mechanism that rotates the door separately prepared” when shifting from “rotation that rotates the door” to “rotation that presses the door against the door”. If body D is not pulled away from G, the door will rotate freely.

In the case of FIG. 4, as in the case of FIG. 3, it works effectively for “rotation that pushes the door to the door” and becomes invalid for “rotation that just rotates the door”, and the door is opened when the door is opened. It has the feature that the force which presses against hit does not act. The spring force of “a spring mechanism that only rotates the door that is prepared separately” gives “rotation that only rotates the door”. Since it cancels just before the door closes, the force to close the door is weakened.

In FIG. 5, the arm A is rotatably attached to the “connection shaft Q attached to the rotating body D”, and the fulcrum of the pulling spring V is “place S other than the rotating shaft O of the rotating body D” and the other fulcrum is the arm. A Attach Sa at the tip. The length of the arm A is longer than the “distance between the rotating shaft O of the rotating body D and the connecting shaft Q attached to the rotating body D”.
The length of the spring increases until it rotates from the 30 position to the T0 position, and after the rotation is stopped by the hit G, the rotation body D rotates from the T0 position to the T + 30 position. The fulcrum Sa of the spring V of the rotating body D moves circularly around the rotation axis O, and the length of the spring becomes longer. This means that the spring force is accumulated until the rotating body D is rotated from the T-30 position to the T0 position, but the spring force is accumulated until the rotating body D is rotated from the T0 position to the T + 30 position. It means that the power of. The longer the length of arm A is than the “distance between rotating shaft O of rotating body D and connecting axis Q attached to rotating body D”, the time until it rotates from position T0 to position T + 30. The spring force stored in is large.

In the case of FIG. 5, unlike the case of FIGS. 3 and 4, when the rotating body D rotates in the clockwise direction in the opposite direction to ⇒ in the figure while contacting the contact G, the length of the spring is also extended. If it opens, the spring will store the force to close the door. Therefore, it also has the function of rotating the door. The moment when the rotating body D is on the straight line T0 and moves away from the contact G is the time when the transition from “rotation that only rotates the door” to “rotation that presses the door against the door” is temporarily stopped. . Without relying on the force of “a spring mechanism that only rotates a separately prepared door”, the rotating body D does not hit and leave the G by itself. In the case of FIG. 9, which will be described later, the rotating body D is made to come out of contact G by itself.

6 is the same as FIG. Arm A is rotatably attached to “connection axis Q attached to rotating body D”, and pulling spring V has one fulcrum at “location S other than rotating axis O of rotating body D” and the other fulcrum is Sa at the tip of arm A. Attach to. The length of the arm A is shorter than the “distance between the rotating shaft O of the rotating body D and the connecting shaft Q attached to the rotating body D”, and until the rotating body D rotates from the T-30 position to the T0 position, The length of the spring becomes long, and after the rotation is stopped by the hit G, the fulcrum Sa of the spring V of the rotating body D rotates until the rotating body D rotates from the T0 position to the T + 30 position. The length of the spring is shortened by circular motion about the axis O. This means that the spring force is accumulated until the rotating body D rotates from the T-30 position to the T0 position, but the spring D accumulates from the T0 position to the T + 30 position. It means that the power of is lost. The shorter the length of the arm A is, the shorter the distance between the rotation axis O of the rotating body D and the connecting axis Q attached to the rotating body D is, the more the arm A rotates from the T0 position to the T + 30 position. During this time, the spring force is lost.

In the case of FIG. 6, the rotating body D is stationary when it is on the straight line T0, but the door rotates freely in the closing direction or the opening direction except when the rotating body D is on the straight line T0. When the mechanism shown in FIG. 6 is employed as a mechanism that “presses the door against the door”, the “rotation that presses the door against the door” works effectively as in the case of FIG. 4. Just before the door is closed, just before the door is closed, the spring force of "a spring mechanism that only rotates a separately prepared door". Since it cancels just before the door closes, the force to close the door is weakened.

In FIG. 7, as in FIG. 1, one fulcrum of the tension spring V is attached to “a place Sd other than the rotation axis O of the rotating body D” and the other fulcrum is attached to Sq at the tip of the arm A. FIG. 7A shows the case where the length of the arm A is longer than “the distance between the rotation axis O of the rotating body D and the rotation axis Q of the arm A”, and FIG. 7B shows the length of the arm A. This is a case where the distance is shorter than the “distance between the rotation axis O of the rotating body D and the rotation axis Q of the arm A”. In both the case of FIG. 7A and FIG. 7B, the length of the spring is increased until the rotating body D rotates from the T-30 position to the T0 position, but the rotation of the arm A rotates. Before body D, spring V and arm A are in a straight line, they are stopped by G.

The rotation of the arm A does not stop so much that the hit G is not in a straight line with the rotating body, the spring and the arm. After the rotation is stopped by the hit G, the rotating body D is rotated in both the cases of FIG. 7A and FIG. 7B until the rotating body D rotates from the position T0 to the position T + 60. The fulcrum Sd of the spring V moves circularly about the rotation axis O, and the length of the spring becomes longer, but in the case of FIG. 7 (b), it does not become longer than in the case of FIG. 7 (a). In the case of FIG. 7B, the length of the spring decreases when rotating from the position T + 30.

This means that the spring force is accumulated until the rotating body D is rotated from the T-30 position to the T0 position, but the spring force is accumulated until the rotating body D is rotated from the T0 position to the T + 30 position. It means that the power of. The longer the length of arm A is than the “distance between the rotation axis O of the rotating body D and the rotation axis Q of the arm A”, the more time it takes to rotate from the T0 position to the T + 30 position. The spring force is great.

This spring mechanism has a feature that it does not stop when it shifts from “rotation that only rotates the door” to “rotation that presses the door against the door” just before the door closes, and the rotating body D moves away from the contact G. Unlike the “distance between the axis of the spring V and the axis of the arm A and the rotation center O of the rotating body D” that gradually increases from zero when rotating, the rotating body D hits away from G and rotates greatly. There is a moment, and the range in which the door “becomes close to a stopped state” is the range in which the rotating body D rotates while contacting before it comes off from G.

In the case of Fig. 7 (a), just before the rotating body D hits and moves away from G, when the transition from "Rotating enough to rotate the door" to "Rotating pushing the door against the door" is made immediately before the door is closed. Since the length of the spring is extended, the speed at which the door closes is reduced. In the case of FIG. 7B, the length of the spring is shortened before the rotating body D hits and separates from the G. The rotating body D hits and separates from the G without stopping by itself without relying on the force of the “spring mechanism that only rotates”.

The “spring mechanism that only rotates the door that is separately prepared” loses the force of the spring that rotates the door just before the door closes, but in the case of FIG. In the case of Fig. 7 (b), it is necessary to leave "the last force that the rotating body D separates from the G" when the spring force disappears. There is no.

FIGS. 8A and 8B have the same structure as FIGS. 7A and 7B, respectively. In FIGS. 7A and 7B, the position of G rotates when the arm A stops rotating. The position before the body D, the spring V, and the arm A are on the straight line T0, and in the case of FIGS. 8A and 8B, the position is set to the subsequent position. In the case of FIGS. 7 (a) and 7 (b) after the arm A hits, the length of the spring V increases, and in the case of FIGS. 8 (a) and 8 (b), it decreases.

In the case of FIG. 8, the range of transition from “rotation that only rotates the door” to “rotation that presses the door to the door” is the range after the rotating body D is separated from the contact G, in the case of FIG. 7. In comparison, the rotating body D needs to rotate greatly, and the range of “a state close to a temporarily stopped state” is also large. As in the case of FIG. 7 (a), the “spring mechanism that rotates the door separately prepared” is the last force before the rotating force disappears, and the rotating body D hits away from G. There must be.

FIG. 9 shows a structure in which the spring and the arm in FIG. 7 are replaced, and the position of G where the rotation of the arm A stops is the same as in FIG. 7, before the rotating body D, the spring V, and the arm A are on a straight line T0. At this position, the arm does not stop midway, but when the rotating body D rotates counterclockwise, the rotational moment when the arm A hits and moves away from the G is large. When the rotating body D rotates counterclockwise and the arm A moves away from the contact G, when shifting from the operation of rotating the door to the operation of pressing the door against the door, a large force is required for the relay. Suitable for you.
In the case of FIG. 9, the range of transition from “rotation that only rotates the door” to “rotation that presses the door to the door” is the range after the rotating body D is separated from the contact G and is “close to the temporarily stopped state”. There is no "state" range. In addition, the rotating body D hits and separates from the G by itself without relying on the force of the “spring mechanism that rotates the door separately prepared”. Unlike the case of Fig. 7 (a), when the rotating body D rotates in the clockwise direction in the opposite direction to ⇒ in the figure while contacting the contact G, the length of the spring is also extended. It also has the function of a spring mechanism that simply rotates the door. In the case of FIG. 9 (a), when the door is opened, the force for closing the door is stored in the spring. However, in the case of FIG. 9 (b), when the door is opened, the door rotates in the direction to open freely.

In the case of FIG. 9 (a), the “distance between the rotation axis O of the rotation body D and the rotation axis Q of the arm A” decreases after the rotation body D has been hit and separated from the G. The rotation of the door decelerates once and then presses the door against the door.

In general, the extended tension spring returns to its original length in an instant. When the object is pulled by the stretched spring, the spring is loaded, and the spring returns to its original length with time. This is because a stationary object does not readily move in an attempt to maintain a stationary state. The object that has started to move is accelerated by the addition of dynamic inertia and the spring force, but when resistance is applied to the movement of the object, the object is decelerated and immediately stops. If the force acting on the object is large and the force that moves the object is small, the moving object will not have dynamic inertia, and if the spring force is strong, it will move early if the spring force is weakened. Follow the changes in order.

For doors that rotate about the rotation axis, frictional resistance on the rotation axis and air resistance when closed are working. In the “spring-driven door” in which the arm that pulls the door is moved by the force of the spring, when the door is closed by the extension spring that is extended when the door is opened, the mounting position of the arm that pulls the door is the rotation axis of the door. The closer it is, the greater the force required to move it with the spring, and the greater the resistance. Also, the circular motion around the rotation axis of the door at the arm mounting position is small, and when using a certain size arm or pull spring, it is relative to the rotating radius at which the arm mounting position is small. The arm and the pulling spring will become large, and a weak and long pulling spring will be used for the `` door that moves small with strong force '', and the pulling spring that returns to its original length in an instant takes time. It will shrink.

Considering each of the doors in the air, the doors in the water, and the doors in the oil, viscous resistance acts on the doors more or less in any case, but even a slight force starts to move. The stationary door is in a state where the frictional resistance on the rotating shaft and the rotational force of the spring are balanced. When the force balance is lost, the door moves, but in this case, if the rotational force of the spring is greater than the frictional resistance on the rotating shaft, it will rotate.

Since the door must not move depending on the stationary position, the force to move the stationary door must be applied at any position where the door rotates. This means that a force is always applied to the rotating door, and the rotational speed of the door is accelerated as long as a force is always applied to the rotating door. Therefore, even if the door rotates slowly, when it is accelerating and the door closes, the rotation speed of the door reaches its maximum value. When the door rotates and becomes dynamic inertia, viscous resistance acts on the door, but the viscous resistance acting on the door does not update the maximum value of the rotation speed of the door.

It starts to move slowly in oil with high viscosity resistance and moves quickly in air with low viscosity resistance. Even if a large force works in oil, it starts moving slowly, and when a small force works in the air, it starts moving slowly. If the force of the spring is adjusted to such an extent that the arm attachment position C is brought closer to the door rotation axis O to make it require a more rapid rotational force and barely move, the viscous resistance acting on the door will have a large effect. become. In this case, the initial speed at which the stationary door starts moving is the “maximum value of the rotational speed of the door that is not updated by the viscous resistance acting on the door”.
As long as the rotational speed of the door is not accelerated, the door follows the strength of the spring. If the spring force is weakened, the rotational speed is decreased.

If the “spring mechanism attached to the rotating body D in FIG. 9 (a)” is attached to the door whose arm attachment position is close to the rotation axis of the door, the rotational force acting on the door during the door closing process is Just before the door is closed, the “rotational force acting on the door” is further reduced, and finally the door is pressed against the door with a strong force. The strength of the rotational force of the door becomes the rotational speed of the door as it is, the door closes slowly, decelerates before closing, and then strongly presses against the door. In many cases, the force that pushes the door against the door is a little stronger than the force that only rotates the door. Since the spring force of the device for preventing rotation (hereinafter referred to as a latch) is overcome and pressed against the door, the position close to the rotation axis of the door is pulled by the spring mechanism shown in FIG. This is what you should do.

Since the operation of hitting the door against the door involves rotation, in order to hit the door against the door stop, a larger spring force is required than the previous operation of simply rotating the door. When a door that rotates by receiving a large resistance compared to the force pulled by the spring mechanism, for example, a “door where the arm mounting position is close to the rotation axis of the door” is pulled with a small force, the door is closed even if the door closes slowly. The power to hit the door is insufficient. In addition, when pulling "the door where the arm mounting position is far away from the rotation axis of the door" with a small force, the door can rotate with a small force, and a small force door can be applied to the door. The door uses a weak spring to close slowly, and the weak spring is not powerful enough to hit the door against the door.

In the case of processing with one system, it is necessary to have “a large force for hitting the door against the door” even at the final time when the “operation to rotate the door” ends and the spring force is weakened. In addition, it is necessary to prevent the “large force of hitting the door against the door” from acting effectively on the previous operation of simply rotating the door.

In general, when an open door is pulled back and closed by the force of a spring, it rotates in the direction of closing the door, decelerates the rotation speed of the door immediately before closing, until the door hits the door even if it receives resistance from the latch There are three types of operation, rotating, but the resistance of the latch varies depending on the door, and the operation of closing the door while decelerating and the operation of hitting the door against the door are one of the spring mechanisms shown in FIGS. It may not be possible to process with. FIG. 10 is obtained by adding the “spring mechanism for pressing the door against the door” shown in FIG. 6 to the spring mechanism shown in FIG.

FIG. 10 shows an embodiment in which the spring-operated system introduced in FIGS. 1 to 9 is applied to a door. When two or more of the systems shown in FIGS. 1 to 9 are incorporated in one rotating body, the effects of each system acting on one rotating body act in a superimposed manner, and another system starts when one system ends. As such, relaying from one system to another is possible. 10A shows a state in which the door is fully opened, FIG. 10B shows a state immediately before the door is closed, and FIG. 10C shows a state in which the door hits the door.

FIG. 10 is a diagram in which the arm A of the mechanism described in FIG. 9A is attached to the rotating body J1 as an arm A1, and the arm A of the mechanism described in FIG. 6 is attached as an arm A2. The law of superposition is established for the acting force. The arm A1 of the mechanism described in FIG. 9 (a) moves along a wheel B whose position can be adjusted by a bolt H that can be taken in and out from a plate W attached to the door frame. From the state where the door shown in FIG. 10 (a) is fully opened to the state immediately before the door shown in FIG. 10 (b) is closed, there is little expansion and contraction of the spring, and the axial center line of the arm A1 which is also the line of action of force is rotated. The distance between the body J1 and the rotational axis I1 is small, and the rotational moment acting on the rotational body J1 is also small. Therefore, the force for rotating the door D is also small. Also, the rotational speed of the door is reduced by the rolling friction of the wheels.

In the process from the state immediately before the door shown in FIG. 10 (b) is closed to the state shown in FIG. 10 (c) where the door hits the door, the arm A1 moves away from the wheel B, and the axis of the arm A1 and the rotating body J1 The distance from the rotation axis I1 increases, and the rotational moment acting on the rotating body J1 also increases. Thus, when opening the door, the door can be opened with a slight force, and the door can be closed firmly until it comes into contact with the door.

The arm A1 away from the wheel B further rotates and pushes and rotates the rotating body J2 that fixes the fulcrum of the spring V1 connected to the arm A1 to invalidate the spring V1. Even if the arm A1 moves away from the wheel B and the rotational moment acting on the rotating body J1 increases, if the resistance of the latch is large and the door stops without closing to the door stop, the arm A2 of the system described in FIG. Added.

Like the arm A1, the arm A2 is rotatably attached to the connecting shaft Sj1 at the tip of the rotating body J1, and the door shown in FIG. 10 (c) hits the door from the state immediately before the door shown in FIG. 10 (b) is closed. In the process of the state, the arm A2 rotates integrally with the rotating body J1 around the rotation axis I1 by the contact Gj attached to the arm A2.

Since the length of the arm A2 is designed to be smaller than the distance between the rotating shaft I1 and the connecting shaft Sj1, the connecting shaft between the fulcrum Q2 of the spring V2 connected to the arm A2, the rotating shaft I1 and the tip of the rotating body J1. The length of the spring V2 is the maximum when Sj1 is in a straight line, and the length of the spring V2 when the connecting shaft Sj1 at the tip of the rotating body J1 rotates in the direction approaching the door from the position where the length of the spring V2 is the maximum. Decrease. When rotating in the direction away from the door, the arm A2 moves away from Gj and the distance between the axis of the arm A2 and the rotational axis I1 of the rotating body J1 increases, and the rotational moment acting on the rotating body J1 also increases.

Immediately before the arm A1 leaves the wheel B, the force by which the spring V1 rotates the rotating body J1 is weakened by increasing the length of the spring V2, and the rotational speed of the door is reduced. When the length of the arm A2 is designed to be the same as the distance between the rotating shaft I1 and the connecting shaft Sj1, the arm A2 does not move away from Gj by the same principle as the mechanism explained in FIG. While the body J1 is rotating integrally, there is no change in the length of the spring V2 connected to the arm A2, and the rotation of the rotating body J1 is not affected.

When the arm A1 and the spring V1 connected to the arm A1 are bent in the mechanism in which the arm A1 rotates, a slight rotational force is applied to the door, and the length of the spring V1 connected to the arm A1 tries to return to the original length. In the final stage, even when the spring force is weak, the arm A1 and the spring V1 are in a straight line, and a large rotational moment acts on the rotating body J1, so that the arm A2 and the spring V2 are moved to a straight line. . Since the direction in which arm A1 and spring V1 are in a straight line is slightly different from the direction in which arm A2 and spring V2 are in a straight line, arm A1 and spring V1 are in a straight line, arm A1 rotates for a while, and then A2 and spring V2 are in a straight line become. In this manner, simultaneously with the end of the operation of rotating the door in the closing direction, the operation of rotating the door until it hits the door starts even when the resistance of the latch is received.

Next, immediately before the door is closed, an operation will be described in which the door is slightly pushed back in the opening direction, stopped once, and rotated in the closing direction again. Two links A3 and A4 are connected between the connecting shaft Sj1 at the tip of the rotating body J1 and the arm mounting shaft C of the door D, and the spring V3 is bent so that the two links A3 and A4 are bent at the connection Sa3. Prepared. The state in which the two links A3 and A4 are bent is maintained from the state where the door is fully opened to just before the door is closed, and the “distance between the connection axes Sj1 and C at the ends of the two links A3 and A4” is shortened. The two links A3 and A4 are in a straight line immediately before the door is closed, and the “distance between the connection axes Sj1 and C at the ends of the two links A3 and A4” is maximized.

“Distance between connecting shafts Sj1 and C at the ends of two links A3 and A4” is also the distance between the tip Sj1 of rotating body J1 and “door and arm connecting shaft C”. Although the door is pushed back and the rotating body J1 is rotated by the door, as shown in FIG. 10B, the rotating body J1 rotates, so that the spring V3 is extended and the two links A3 and A4 are If the door rotates in the straight line and rotates in the opening direction and does not rotate in the opening direction, the rotating body J1 does not rotate, so the rotating body J1 is not rotated by the door. Immediately before the door closes in this manner, the load is strongly applied to the drive portion that applies rotation to the door, whereby the rotation of the rotating body is decelerated.

When the rotating body J1 rotates in a range close to a right angle with the door, the tip Sj1 of the rotating body J1 does not move away from the door, so the “movement amount pushed back in the opening direction immediately before the door closes” is large, and the rotating body J1 , The tip Sj1 of the rotating body J1 moves away from the door, and therefore decreases. Depending on the range of rotation of the rotating body J1 immediately before the door is closed, the rotary body J1 can be adjusted to rotate until it hits the door while being stopped or decelerated without being pushed back in the opening direction immediately before the door is closed.

Patent Document 1 describes a method of decelerating until the direction of “the wheel trajectory of the arm tip that pulls the door” changes from the middle until the door is temporarily stopped. Even if it changes, if no load is applied due to a collision or the like, the moving speed of the wheel at the tip of the arm that pulls the door will not change, and the rotational speed of the door will not be reduced. For example, in FIG. 20 of Patent Document 1, even if the “track of the wheel at the tip of the arm that pulls the door” is a circle centered on the position of the door connection shaft C10 immediately before the door is closed, the arm is not loaded. The wheel at the tip end passes on the circumference in an instant, and the rotation speed of the door continues to rotate without being decelerated.

When the stationary door is moved, a load is applied to the drive portion that moves the door. However, in Patent Document 1 in FIG. 20, the movement of the wheel at the tip of the arm on the circumference does not move the door, and the load is not applied. And pass the above circumference. When the door is rotating with dynamic inertia, the door connection shaft C passes through the position of the door connection shaft C10 immediately before the door is closed, leaving the wheel at the arm tip on the circumference, and the `` arm tip The distance between the “any point on the circumference in front of the wheel” and “the position C0 where the door connecting shaft C passes the position of the door connecting shaft C10” is shorter than the arm omen, so that the arm stops rotating. However, when the drive part moves a rotating door with dynamic inertia in the direction of rotation, the force acting on the door is reduced, the load on the drive part is reduced, and the wheel at the end of the arm moves. It becomes easy.

It is not possible for the door to start moving and become dynamic and overtake the wheel movement because the springs are not always loosened and are maximally tense. The door with dynamic inertia is subjected to the force of the spring, resulting in a further acceleration of the rotational speed. Therefore, the door cannot be decelerated unless the drive part decelerates independently. When the wheel trajectory of the arm tip that pulls the door is set to “circumference around the position of the door connection axis C10 immediately before the door closes”, the door is rotated in the opening direction to load the wheel at the arm tip. Therefore, as a means for applying a load to the drive portion that applies rotation to the door, a method of rotating the closing door in the opening direction is adopted.

FIG. 11 shows the contact of the connecting shaft P at the tip of the rotating body J (referred to as a rotating arm in each claim described in the claims) and the door D rotating about the rotating shaft O about the rotating shaft Ij. The link A1 is connected to the shaft C by links A1 and A2, and the end of the link A1 is bent at a right angle. A portion indicated by a solid line in FIG. 11A shows a state immediately before the door is closed. A portion indicated by a dotted line indicates a state where the door is fully opened and a state where the door is closed. In the fully opened state shown by the dotted line in FIG. 11A, the rotating body J and the link A1 are separated from each other, and the connection axes P, Q, and C are on a straight line.

When the door is closed from the fully opened state, the angle formed by the rotating body J and the link A1 on the connecting shaft P gradually decreases, and the rotating body J and the link A1 immediately before closing the door as shown by the solid line in FIG. Overlap to become one. Here, the fact that the rotating body J and the link A1 overlap and become integral means that the angle formed by the rotating body J and the link A1 on the connecting shaft P becomes 0, and the rotating body J and the link A1 are connected. When they are in contact with each other, in FIG. 10 (b), it means a state in which the contacted shape is maintained as in the case where the rotation of the link A3 is stopped at the connecting shaft Sj1 by Ga3. The same applies to FIG. 12 described later.

The connecting shafts P, Q, and C are in a straight line until the rotating body J and the link A1 are overlapped and integrated. The line of action of the force that pulls the door connecting shaft C from the rotary shaft tip P is straight, regardless of the shape of the other link A1 because the tip is bent at a right angle. When the rotating body J and the link A1 are overlapped and integrated with each other, the link A1 is bent at a right end, so that the position of the connecting axis Q is the position of the door rotation axis O of the straight line Y passing through the rotation axis Ij and perpendicular to the door. On the other side. The rotating body J and the link A1 which are united with each other rotate around the rotation axis Ij, and the connection axis Q of the links A1 and A2 revolves around the rotation axis Ij and follows an arc locus almost parallel to the door. To draw.

When the rotating body J and the link A1 are overlapped and integrated as shown by a dotted line in FIG. 11A, the connecting shafts P, Q, and C are not in a straight line and the links A1 and A2 are bent at the connecting shaft Q. . When the connecting axis Q goes to the center of the arc trajectory, A1 and A2 try to approach a straight line from the bent state. When the direction component perpendicular to the moving door of the connecting shaft Q approaches the door, the door D rotates in the opening direction, and when the rotating body J further rotates, the direction component perpendicular to the moving door of the connecting shaft Q turns into the door. The door D rotates in the opening direction again and presses the door against the door.

In FIGS. 11 and 12, the rotation direction of the rotating body J and the door is opposite to each other, but the operations of the links A1, A2 and the door D are similar to the above-described operations even in the moving direction.

The reason why the door rotates in the opening direction before the door is closed is that the position of the connection axis Q is on the opposite side of the door rotation axis O of the straight line Y passing through the rotation axis Ij and perpendicular to the door. In the case where the tip of the link A1 is not a curved shape but a straight line as shown in FIG. 12, the rotating body J and the link A1 overlap at a position parallel to the Y axis as shown by a solid line in FIG. When integrated, the position of the connecting shaft Q is on the side of the straight shaft Y that is perpendicular to the door through the rotating shaft Ij, and the connecting shaft Q revolves around the rotating shaft Ij and is almost parallel to the door. When drawing the locus of the circular arc, the direction component perpendicular to the door of the movement of the connecting axis Q is the direction away from the door, and the door does not rotate in the opening direction.

In FIG. 12, the rotating body J and the link A1 are overlapped when the door is fully opened so that the position of the connection axis Q is on the opposite side of the door rotation axis O of the straight line Y passing through the rotation axis Ij and perpendicular to the door. The connecting shafts P, Q, and C are not in a straight line until they are integrated, and the links A1 and A2 are bent at the connecting shaft Q by charging the spring V, and the rotating body J rotates and is parallel to the Y axis. Before the rotation, the rotating body J and the link A1 are overlapped and integrated.

The connection axis Q is located on the opposite side of the door rotation axis O of the straight line Y passing through the rotation axis Ij and perpendicular to the door, so that the links A1 and A2 are not further bent at the connection axis Q. If Gq is attached to the door, the door can be moved by the rotation of the rotating body within the range in which the door rotates in the opening direction, or it will not move even if the door is pushed. This means that even when the door is strongly pressed by a strong wind or the like, the door does not close, and the door does not close with a finger or an impact.

FIG. 11B shows a state in which the door is opened slightly from the closed state. When the rotating body J rotates and opens the door, the overlapping rotating body J and link A1 close the door after opening the door slightly. However, if resistance is applied in the closing direction, the overlapping rotating body J and the link A1 rotate while being separated from each other, so that the connecting shaft Q has the Q + 5 shown in FIG. The door opens because it moves away from the rotation axis Ij without reaching the position.

The door can be rotated by moving the rotation axis J in this way. However, when the door is pulled and opened, the connection axis Q of the rotation axis Ij is rotated when the rotation body J and the link A1 rotate. As shown in FIG. 11B, when the door is opened slightly and the connection axes P, Q, and C are in a straight line, the position of the rotation axis Ij is a straight line connecting the connection axes P and C as shown in FIG. When the door P is on the moving direction side, if the door is slightly opened, the rotating body J and the link A1 try to overlap each other, and the connecting shaft P does not rotate around the rotating shaft Ij. That is, the rotating body J does not rotate. This door has the feature that it does not move when the door is operated in the same way as when the door is closed. Once closed, it will not open from the outside as if locked.

12 solves the “defects that do not open from the closed state” of the door shown in FIG. 11. The structure of FIG. 12 is the same as the structure of FIG. 11, and the link A1 of FIG. Like 11 links A1, it is linear without being bent at the tip. By connecting the spring V to the connecting shaft Q or C until the door is fully opened until it is closed, the connecting shafts P, Q, and C are not in a straight line, and the links A1 and A2 are bent at the connecting shaft Q.

The position where the rotating body J rotates and overlaps with the link A1 is integrated before the rotating body J is parallel to the Y axis, and the position of the connecting shaft Q passes through the rotating axis Ij and is perpendicular to the door. It is on the opposite side of the rotation axis O and rotates in the opening direction before the door is closed. The more the position of the connecting shaft Q is on the “opposite side of the door rotation axis O of the straight line Y passing through the rotation axis Ij and perpendicular to the door”, the door rotates in the opening direction. The load is slowed down. If the position of Q is “on the side of the door rotation axis O of the straight line Y passing through the rotation axis Ij and perpendicular to the door”, the links A1 and A2 bent at the connection axis Q become a straight line and the connection axes P and C Even if the distance between them is extended to the maximum, the connecting axis Q moves away from the door, not in the direction of approaching the door, so it does not rotate in the direction of opening just before the door closes.

In the range where the door rotates in the opening direction immediately before the door shown in FIG. 12A is closed, the rotation angle of the links A1 and A2 on the connecting shaft Q is limited by the contact Gq attached to the connecting shaft Q, and the door pushes the door. Will not move. However, when the door is pushed and opened as shown in FIG. 12B, the position of the rotation axis Ij is on the side opposite to the moving direction of the straight connection axis P connecting the connection axes P and C. Rotates while separating from the overlapped state, and the door opens.

A plurality of wheels Bm1, Bm2, and Bm3 attached to the outer periphery of the rotating body M attached to the rotating shaft Im of the rotating body J that gives rotation to the door shown in FIG. The structure made to collide is the same as the structure in which the “arm that attaches the wheel to the tip and pulls the door” described in FIGS. 10 and 13 of Patent Document 1 slides on the sliding surface attached to the door frame. It is a structure that tries to decelerate by changing the direction of travel from the direction in which the wheel at the tip of the wheel pulls the door to a right angle and colliding with the sliding surface.

The speed reduction device described in FIG. 10 and FIG. 13 of Patent Document 1 is composed of two parts, “the structure of the system that reduces the rotation of the door” and the part attached to the door frame and the part attached to the door. On the other hand, the speed reducer described in FIG. 13 of the present application attaches the speed reducer to a rotating body that gives rotation to the door, and is concentrated only on a portion attached to the door frame. As shown in FIGS. 10 and 13 of Patent Document 1, when the device is attached, the deceleration effect does not change depending on the positional relationship between the door and the sliding surface and the positional relationship between the device and the rotation axis of the door.

A state indicated by a solid line in FIG. 13A is a state immediately before the door is closed, and each point on the broken line is a connection axis P3 of the rotating body J and “rotating body J and door D in the process from just before the door is closed to fully opened. The change in the position of the connecting shaft P4 of the links A3 and A4 intervening between them is shown, and the number after the +-in the subscript indicates the rotation angle of the door. FIG. 13B shows a state where the door is closed.

The rotating shaft Jb of the rotating body J, the rotating shaft Ib of the wheel B, the mounting shafts Sw1 and Sw2 of the spring V, and the sliding surface K are attached to the plate W fixed to the door frame. "The branch of the rotating body J is L-shaped and perpendicular to the branch to which the rotating body M of the speed reducer is attached" includes "A1, V1 that moves with the spring system described in FIG. 4" and "Spring described in FIG. A2, V2 "which is operated by the above system is attached, and the former system operates by being relayed to the latter system as described in FIG.

The rotating body J and the door D are connected by two links A3 and A4. The link A3 moves while contacting the wheel B, and the circular motion of the connecting shaft P3 at the tip of the rotating body J is caused by the links A3 and A4. The connecting shaft P4 is set to a substantially linear motion, and the rotation of the rotating body J is transmitted to the rotational motion of the door. Further, the connecting shaft P4 of A3 and A4 linearly moves in the “tangential direction of circular motion about the door rotation axis of the connecting shaft C with the door”.

Immediately before the door is closed, the connecting shaft P4 of A3 and A4 changes its traveling direction at a right angle, and moves in a direction perpendicular to the “tangential direction of the circular motion around the door rotation axis of the connecting shaft C”. The force pulled by the rotating body J is in the axial direction of the link A3, and the force by which the door D is pulled is in the axial direction of the link A4. The force to be pulled by the rotating body J becomes perpendicular to the force to which the door D is pulled and works invalidly for the rotation of the door, but the rotating body J that rotates the door D becomes almost unloaded and instantly. The “link A3 that pulls the door” rotates and does not leave the wheel B.

However, when the rotation of the rotating body J that gives rotation to the door stops or slows down, just before the door closes, “the tip P4 of the link A4 that is attached to the connecting shaft C of the door and pulls in the tangential direction of the circular motion” is linked to the link A3 by centrifugal force. Is released from wheel B, hits G22 and the door stops rotating. When the link A3 is separated from the wheel B, the link A3 and the link A4 can be freely bent and deformed around the connection point P4, so that the vibration of the reduction gear is not transmitted to the door.

When the inertia force is applied to the door, the door D pushes the “rotating body J that gives the door rotation”, and the rotating body J is added with an inertial force in addition to the spring force, and the rotation is accelerated. When the rotating body M having a plurality of wheels attached to the tip attached to the body J enters the sliding surface K at a right angle, the rotation of the rotating body J is stopped. The link A3 leaves the wheel B and hits G22 to stop the rotation of the door. That is, the inertial force is replaced with the braking force. When the inertial force is not added and the rotation of the rotating body J is not accelerated, the link A22 does not leave the wheel B and does not hit the hit G22.

FIG. 13 is similar to the “door that opens before closing” shown in FIGS. 10 and 11, and the connecting shaft P4 at the tip of the link A4 that pulls the door is “the position of the door and arm mounting axis C + 10 immediately before the door closes”. Is moved by a spring force in the direction of the chord of the arc, so that the connecting shaft P4 at the end of the link A4 is pushed back in the direction in which the door opens. Thus, depending on whether the rotation of the door stops or the extension portion of the end of the link A3 hits the G22 with an inertia force without being pushed back, the door is decelerated until it is almost stopped.

In the state where the door shown in FIG. 13 (b) hits the door, the link A3 rotates with the contact point with the wheel B as a fulcrum, the connecting shaft P3 is far from the fulcrum, and the connecting shaft P4 is close to the fulcrum. Therefore, even if the force is attenuated until the door hits the door, it is a big force that pulls the door until it hits the door by the lever principle.

In this way, when the door hits the door, the lever principle works, and the system that applies a large force compared to the force that just rotates the door rotates the door slowly and firmly presses the door against the door Enable operation. The closer the door-to-door arm-door connecting axis C is to the door rotation axis O, the slower the door is rotated with a strong spring force, but there is insufficient force to press against the door with a strong spring force. There is. Also, the farther away the door-to-door connecting shaft C is from the door rotation axis O, the stronger the door is pressed against the door even with a weak force, but the door rotates faster even with a weak force.

How strong the force that the door presses against the door should be compared to the force that rotates the door depends on the door, so it is an absolute condition that the door presses against the door. If this is the case, the door connection axis C is far away from the door rotation axis O, the absolute condition that the door is pressed against the door is satisfied, and the door is rotated by the lever principle so that the door does not rotate quickly. It is wise to set the force extremely small compared to the force holding the door against the door.

Generally, as a method of reducing the approach speed of two objects, some rotation such as a worm gear is caused as the two objects approach, and if the speed ratio is increased, the friction can be greatly reduced. If there is no resistance when opening, even if decelerating when closing. 14-17 shown below is a gear mechanism that is disengaged when it bites and opens when it is closed.

Rather than attaching to the arm that pulls the door, attach the device to the rotating body.

The reference numerals in FIG. 14A are not related to the reference numerals in the drawings other than FIG. The rotational speed of the rotating body that gives rotation to the door is reduced by making a stepped cut in the rotating body having the outer periphery of the spiral curve A. The speed at which each rotating body approaches is reduced, or the impact at the time of collision is reduced.

All stepped cuts are congruent right triangles, and the two corners of the stepped cut always touch the circle B on the outer circumference of the wheel, and the hypotenuse of the right triangle connecting the two corners of the stepped cut The perpendicular bisector always passes through the center of circle B. The perpendicular bisector of the hypotenuse of a right triangle. When passing through the center of the swirl curve, trying to bring the center of the circle B closer to the center of the swirl curve, the outer periphery of the swirl curve and the wheel with the outer periphery of the circle B rotate without rotating the center of the circle B. Keep away from the center of the curve.

The farther the perpendicular bisector T1 of the hypotenuse of the right triangle is away from the center of the spiral curve, the more easily the rotating body with the outer periphery and the wheel with the outer periphery of the circle B rotate, and the center of the circle B becomes the spiral curve. Easy to get closer to the center. In addition, the closer the perpendicular bisector T1 of the hypotenuse of the right triangle is closer to the center of the spiral curve, the harder the rotating body with the outer periphery of the spiral curve and the wheel with the outer periphery of the circle B rotate. It takes time to approach the center of the curve.

A drawing method of a spiral curve with a right triangle notch will be described with reference to FIG. If the distance from the center Oa of the spiral curve is Rc, and the perpendicular bisector of the hypotenuse of all right-angled triangles in the notch in the spiral curve is in contact with the circle C that radiates Rc, the wheel B of the spiral curve A Even if it is in contact with two arbitrary points, the rotational moment applied to the rotating body whose outer periphery is the spiral curve A is constant.

Draw a circle D2 with two points on the hypotenuse of the first right triangle to be cut into the spiral curve as P1 and P2 and the diameter of the hypotenuse of the right triangle centering on point P2. A common tangent line of the circle D2 and the circle C is T2, a contact point between the circle D2 and the tangent line T2 is E2, and a point symmetric with respect to the point P2 with the tangent line T2 as an axis of symmetry is P3. The right triangle whose hypotenuse is the line connecting point P2 and point P3 is congruent with the first right triangle, and the perpendicular bisector of that hypotenuse is T2 and is also the tangent of circle C.

Next, a circle D3 having the same diameter as the circle D2 is drawn around the point P3. The common tangent line of the circle D3 and the circle C is T3, the contact point of the circle D3 and the tangent line T3 is E3, and the point symmetric with respect to the point P3 with the tangent line T3 as the axis of symmetry is P4. The right triangle whose hypotenuse is the line connecting point P3 and point P4 is congruent with the first right triangle, and the perpendicular bisector of that hypotenuse is T3, which is also the tangent of circle C. In this way, P5, P6, and P7 ~ are sequentially set to draw a right triangle cut into the spiral curve.
The speed of approach between the rotating body whose outer periphery is the spiral curve A and the rotating body that gives rotation to the door is the distance between the contact point with the circle C and the contact points E1, E2, E3, at each of the tangent lines T1, T2, and T3. Follow the decrease.

The slope of the hypotenuse of the right triangle cut into the spiral curve is the curvature of the spiral curve. The larger the hypotenuse slope, the closer the rotor M of the spiral curve and the rotor J approach to the rotation of the rotor of the smaller spiral curve. Increases speed. The greater the slope of the hypotenuse, the more impact is involved, and the smaller the slope, the more difficult it is to see discontinuities in the rotation and stoppage. In addition, there is no speed reduction effect with a spiral body with no cuts, with the size of the right triangle set to zero, and the speed reduction effect appears as the size of the right triangle is gradually increased. When the radius is exceeded, the rotation of the spirally rotating body M stops. The further away from the center of rotation of the swirl curve, the more vertically the equipartition line set up on the hypotenuse, the more easily the swirl wheel rotates, and slippage tends to occur between the wheel and the outer periphery of the swirl curve, resulting in less deceleration effect.

As shown in the embodiment of FIG. 15 (a), in FIG. 14 (b), while the arm A1 connected to the spring V is in contact with the arm G, the arm A1 and the rotating body J rotate together. It is rotated until it reaches a position immediately before closing the door, and the arm A1 hits away from G just before the door closes to increase the rotational force. At this time, the rotating body M of the spiral curve begins to contact the wheel B, and the rotational speed of the rotating body J is reduced. First, the corner portion P1 of the spiral-curved rotating body M comes into contact with the outer periphery of the wheel B, and the corner portions P2, P3, and P4 sequentially contact while the spiral-curved rotating body M rotates. Accordingly, the rotating body J rotates while being decelerated, and the door is pulled by the arm A2 to which the rotating body J is connected.

The distance that the center Im of the rotating body moves while the wheel B is in contact with the first corner P1 of the rotating body M and the last corner P5 of the rotating body M is independent of the position of the center Im of the rotating body M. Since the position of the center Im of the rotating body is as far as possible from the center Ij of the rotating body J, that is, the rotation radius of the center Im of the rotating body M around the center Ij of the rotating body J is larger, While the first corner P1 of the rotator M is in contact with the last corner P5, the rotation angle of the rotator J is reduced, and the rotation speed of the rotator J is further reduced.

Further, when the rotating body M of the spiral curve is rotated and the corner portion P5 of the rotating body M of the spiral curve is separated from the outer periphery of the wheel B, the rotation of the rotating body J becomes irrelevant to the deceleration of the rotating body M of the spiral curve. Is strongly pressed against the door. When the door is closed, resistance is given to the rotation of the rotating body J, but when the door is opened, the rotating body M of the spiral curve moves in a direction away from the wheel B, so that the door opening operation is not resisted. Therefore, by adding this reduction gear, it does not become heavy when opening the door. Thus, the door can be closed without impact only by incorporating the speed reducer of FIG. 14 into the system for rotating the door described in FIG.

When the spiral wheel at the tip of the lever of Patent Document 2 is pressed against the ground with a certain force, the center of the spiral wheel approaches the ground while slipping occurs on the contact surface between the outer periphery of the spiral wheel and the ground. The feature of the spiral wheel is that the length of the spiral wheel that slides while the outer periphery of the spiral wheel is in contact with the ground is long with respect to the amount of movement that the center of the spiral wheel approaches the ground. By moving multiple wheels on the outer circumference without traveling on the ground, it moves up and down on the spot. Uses a long feature to lift the object lightly with a constant force from the beginning to the end. As shown in FIG. 14 (c), when a spiral wheel obtained by removing a plurality of outer peripheral wheels from the spiral wheel of Patent Document 2 is pressed against the ground, it slides over a long distance. Will approach the ground while decelerating. Whatever the position where the outer periphery of the spiral wheel is in contact with the ground, the rotational moment due to the reaction force received from the ground is always constant, and the conditions are the same regarding the rotational speed.

Since the distance between the center of the “circular wheel with a spiral curve” and the ground gradually decreases with rotation, when the spring is pulled close to the ground by pulling the center of the “wheel with a spiral curve”, the spiral wheel In order for the center of the wheel to approach the ground even a little, it is necessary to rotate the “wheel with a spiral curve” and to slide a long distance while the outer periphery and the ground are in contact with each other. Is time consuming and the spring is not instantly shrunk.

One of the fulcrums of the tension spring is attached to the center of the “wheel having a spiral curve” as indicated by the dotted line in FIG. 14 (c), and the wheel having the spiral curve on the fixed side of the other fulcrum. If the surface is made to slide while contacting the outer periphery of the ”and the surface is kept at a right angle with the spring, the spring will gradually shrink while the“ circumferentially curved wheel ”rotates. Become. The tension spring that gradually contracts without contracting in an instant is not limited to the door that is moved by the spring of the present invention, and can be widely used in general.

In the reduction gear of the “wheel with a spiral curve”, the contact point between the outer periphery and the contact surface of the “wheel with a spiral curve” does not move even if the spiral wheel rotates, As the outer periphery of the wheel slides while being in contact with the contact surface, the spring gradually contracts while the “wheel having a spiral curve” rotates. The greater the sliding friction between the outer periphery and the contact surface of the “wheel with a spiral curve”, and the longer the outer periphery with which the “wheel with a spiral curve” slides, the longer the spring length changes. The time required is longer.

The speed reducer of the “swirl wheel having an outer periphery with a spiral curve as a broken line” shown by a solid line in FIG. 14C is the same as the speed reducer of the rotating body M of the spiral curve shown in FIGS. By making the outer periphery of the spiral wheel into a broken line from the curve, a state close to a stop that does not stop in the middle of rotation is mixed, and the speed reduction effect is enhanced by changing the motion speed.

By making the outer periphery of the spiral wheel into a polygonal line from the curve, the contact between the outer periphery of the wheel and the ground changes from one point to two points. When the contact is one point, a straight line passing through one point that contacts the ground is perpendicular to the ground. When the line of force of the force passing through the center of the spiral curve does not coincide with the straight line perpendicular to the ground, the “wheel having a spiral curve” rotates. That is, if the outer spiral curve is not a circle, it rotates. Moreover, it becomes difficult to rotate as the spiral curve on the outer periphery approaches the circle.

When the outer periphery of the spiral wheel is changed from a curved line to a polygonal line, when there is no center of the spiral curve between two points that are in contact with the ground and perpendicular to the ground, the action line of the force passing through the center of the spiral curve is the above two points. When it is not between straight lines passing through the ground and perpendicular to the ground, the “swirl wheel with an outer periphery with a spiral curve as a polygonal line” rotates. As illustrated in FIGS. 14A and 14B, when the ground that contacts the curved surface of the spiral wheel is a wheel, the two perpendicular bisectors that contact the wheel pass through the center of the circle of the wheel. When the center of the wheel and the midpoint of the two points in contact with the wheel and the center of the spiral curve are not in a straight line, the “swirl wheel having an outer periphery with a spiral curve as a polygonal line” rotates.

The spiral curve of the spiral wheel at the tip of the patent document 2 is the one in which the right triangle with the same height is drawn with the base of the right triangle sequentially overlaid on the hypotenuse of the right triangle. Since the rotation of the spiral wheel stops when it coincides with the ground, the triangular shape of the spiral wheel shown in FIG. 14 (c) is a triangle in which the right angle portion of the right angle triangle in Patent Document 2 is a slightly obtuse angle from the right angle, and the contact surface. The rotation of the spiral wheel does not stop even if it matches.

In the spiral wheel of Patent Document 2, a constant rotational moment works regardless of the position of the corner portion in contact with the ground, and the “spiral wheel in which the outer peripheral spiral curve is a polygonal line” in FIG. A constant moment of rotation works regardless of the position of the corner that contacts the ground. As the center of the spiral wheel approaches the contact surface, the length of the spring becomes shorter, the spring force weakens, and the rotational force gradually decreases. A rotating body that has started rotating tends to increase the rotational speed, and the effect of reducing the speed is greater when the rotating body is difficult to rotate as it rotates.

14 (a) and 14 (b), the reduction device for the spiral-curved rotating body M has two corners of the spiral-curved rotating body M and the first notch of the spiral-curved rotating body M regardless of the position of the wheel. If they touch at the same time, the deceleration effect is always the same. 14 (d) and 14 (e) show the case where the wheel is small and the two corners of the notch made in the spiral curve are not in contact with each other at the same time, but are simply “rotating plate with stepped notch”. The length of the bottom of the cut is slightly smaller than the wheel radius so that the rising surface of the wheel is in contact with the wheel, and the rising surface of the notch and the corner that continues are always in contact with the wheel. . In this case, the corner that contacts the center of the wheel and the center of the rotating body of the plate are not aligned, so the rotating body of the plate rotates.

As shown in FIG. 14 (e), when all of the step-like cuts attached to the “rotating plate with stepped cuts” are the same, the “rotating plate with stepped cuts” is As it rotates, the corner that contacts the center and the center of the rotating body of the plate approach a straight line, making it difficult to rotate. However, as in FIG. 14C, the rotating body that has started rotating once rotates. There is a tendency to increase the speed, and the effect of decelerating is greater when the rotation is more difficult.

Each of the plurality of wheels Bm1, Bm2, and Bm3 attached to the outer periphery of the spiral wheel M shown in FIG. 13 enters the running surface K at different times, but the wheels Bm1 that entered the running surface first are in an accelerated state. Enter the runway K. If each of the plurality of wheels is attached to the tip of a separate arm instead of being attached to one spiral wheel M, each of the plurality of wheels enters the running surface in a stationary state.

Each corner P1, P2, P3,... Of the outer periphery of the spiral wheel M shown in FIG. 14 is not a part of the spiral wheel M, but each of the arms rotating around a separate rotational axis Im. If it is the tip, each corner of the outer periphery of the spiral wheel M is in a state of giving motion to an object in a stationary state when contacting the wheel B or the contact surface K.

In FIG. 13, a plurality of arms are rotatably attached to a rotating body J that gives rotation to the door, and each of the plurality of arms gradually collides with a sliding surface K in a direction substantially perpendicular to the axis of the arm over time. Thus, the rotational speed of the rotating body J can be reduced. When each arm collides with the sliding surface, the force acting toward the rotation axis of the arm acts on the tip of the arm to prevent the rotating body from rotating, and the force acting on the arm tip after the collision is prevented. The direction gradually moves away from the direction toward the rotation axis of the arm and shifts to the tangential direction of the circular motion, so that the arm rotates and loses the force to prevent the rotation of the rotating body. Each arm causes a motion from a stationary state from one to the next like a shogi to decelerate the “rotation of a rotating body that rotates the door”.

The fulcrums at both ends of the pulling spring are attached to each of Sl and Sr shown in FIG. 15, and Sl and Sr are moving bodies that are close to each other, or are moving bodies that are close to each other in a system that is rotated by a spring. A plurality of arms Al and Ar, which are rotatably attached to the shafts Il and Ir, are attached. The rotating shafts (Il1, Ir1) (Il2, Ir2) (Il3, Ir3)... Facing each other are moved toward each other on a common straight line. That is, the moving bodies Sl and Sr are assumed to approach the shortest distance without rotating.

FIG. 15 (a) shows a state in which the tips of the first arms Al1 and Ar1 facing each other are in contact with each other, and the contact point P1 and the rotation axes Il1 and Ir1 of both arms are not in a straight line. 15 (b) state is reached. When the tips of the first arms Al1 and Ar1 come into contact, the tips of the second facing arms Al2 and Ar2 are separated from each other by a distance δ1, but when the state shown in FIG. Sr approaches by half the distance δ1, and the tips of arms Al2 and Ar2 come into contact with each other. The smaller the distance δ1, the shorter the distance between the tips of the second facing arms Al2 and Ar2, and the greater the speed reduction effect.

After the moving bodies Sl and Sr collide, the amount of rotation of the arms Al2 and Ar2 decreases and the rotation speed decreases as the moving bodies Sl and Sr approach. The shape of the arms Ar and Al shown in FIG. 15 (c) is such that a point where each of the four arms Ar and Al collides again is added so that the arms Ar and Al collide with each other after the rotation speed has decreased. In FIG. 15C, the moving bodies Sl and Sr are further approached from the state where the tips of the arms Al2 and Ar2 in FIG. 15B are in contact with each other, and are added to the arms Al1 and Ar1 that collide first. With the collision point P3 in contact again, the moving bodies Sl and Sr next approach each other by δ3, and the collision point P4 added to the arm Al2 and Ar2 that collided next to the arm Al1 and Ar1 tries to contact. Indicates the state to be performed.

The first arm Al1, Ar1 and the second arm Al2, Ar2 rotate after the tips contact each other alternately, and stop and rotate repeatedly. In FIG. 13C, the moving bodies Sl and Sr stop each time the tips P1, P2, P3, and P4 collide with each other, and approach each time the arm rotates. The moving bodies Sl and Sr are repeatedly stopped and approached, and the moving speeds of the moving bodies Sl and Sr are decelerated by the so-called domino effect in which the motion from the stationary state continues intermittently.

The shapes of the arms Al1, Al2 and the arms Ar1, Ar2 shown in FIG. 16 (a) are symmetric with each other, and the arms Al1, Al2 and the arms Ar1, Ar2 are sandwiched between the moving bodies Sl, Sr. Attached to the back and front. The shapes of the arms Al1, Al2 and the arms Ar1, Ar2 shown in FIG. 16 (a) are shapes obtained by further adding locations that collide with the arms Al1, Al2 and the arms Ar1, Ar2 shown in FIG. 15 (c) again.

The state shown in FIG. 16 (a) is a state in which the additional portion P4 of the arms Al2 and Ar2 is in contact with the additional portion P3 of the arms Al1 and Ar1 in FIG. The "additional colliding point P4" added to the arms Al1, Ar1 is approached by δ4 and the moving object Sl, Sr approaches by δ5 and is added to the arm Al2, Ar2 "additional colliding point P5" "Indicates a state of contact. The distance between each “collision point P” on the outer periphery of the arm in FIG. 16A and the rotation center I decreases with rotation, and the shape of the outer periphery of the arm in FIG. 16A is a spiral curve.

When only the arms Al1 and Ar1 having a plurality of colliding points face each other and approach each other, they decelerate each time they collide multiple times, and repeat deceleration and acceleration multiple times. In this case, the arms in a stationary state do not collide but the rotating arms collide even if the arm is decelerated after the collision. As shown in FIG. 16 (a), the moving bodies Sl and Sr to which the arms Al1 and Ar1 are attached are attached, and when the arms Al2 and Ar2 having a plurality of other colliding locations are attached, the arms Al2 and Ar2 also approach each other and collide multiple times. Repeatedly rotate and decelerate and accelerate several times. If the mounting positions of the arms Al1, Ar1 and Al2, Ar2 are shifted so that multiple collisions between the arms Al1, Ar1 and Arms Al2, Ar2 do not occur at the same time, and the time is shifted, the collision of one arm will occur. Is not continuous, and the collision of the other arm is inserted from the collision of one arm to the next collision, so the elapsed time from the collision of each arm to the next collision becomes longer, and it is further decelerated and stationary Get closer to.

Similarly to FIG. 16 (a), in the speed reducer shown in FIG. 14 (b), when another spiral wheel M2 is attached to the spiral wheel M1, each of them approaches the wheel B and repeats collision and rotation several times. Repeat the deceleration and acceleration several times. The fulcrums at both ends of the tension spring are attached to each of Sl and Sr shown in FIG. 16, and Sl and Sr are moving bodies that approach each other. Or it is a moving body which approaches each other in the system rotated by a spring.

As shown in FIG. 16 (b), if the mounting position of the spiral wheel M1 and the other spiral wheel M2 is shifted by δ and a plurality of collisions occur simultaneously, as shown in FIG. 16 (c). When the mounting position of the spiral wheel M1 and the spiral wheel M2 is shifted by half of δ, the collision does not occur multiple times at the same time, and the collision of the other spiral wheel is inserted between the collision of one spiral wheel and the next collision. .

Here, “displacement position δ of the spiral wheels M1 and M2” is the time required for the spiral wheel M to rotate, the two notch points to contact each other, and the next notch point to contact each other. One of the two notch points moves on the circumference of the wheel B until M rotates and the two notch points come into contact with each other and the next notch point comes into contact. Since one of the two cutout points moves on the circumference of the wheel B, the distance moved along the circumference in the direction perpendicular to the center of the wheel B is larger than the distance approaching the center of the wheel B. When the distance approaching is half of δ, the distance along the circumference is more than half of the “distance that moves along the circumference until two points on the notch touch each other and two points on the next notch contact” Moving.

When the two points of the notch come into contact and the spiral wheel M approaches the center of the wheel B by half of δ, one of the two points of the notch does not reverse, but rotates in the rotation direction. Therefore, if two notches on one spiral wheel are in contact and one notch on the other spiral wheel is in contact, cut until the next two notches on one spiral wheel are in contact. One of the two missing points will not be reversed.

As shown in FIG. 16, when the two notch points P5 and P7 of one spiral wheel M1 are in contact, the notch point P6 of the other spiral wheel is a position past the center between P5 and P7. The two rotations of the cutout of one of the spiral wheels M1 under load are started first. Since there is one notch P6 of the other spiral wheel M2, the three points Ib1, P6, Im1 are not in a straight line, the spiral wheel M1 rotates, and the notch two points P6, P8 of the other spiral wheel M2 Touch. In this way, the rotation of one spiral wheel M1 is relayed to the other spiral wheel.

When a plurality of spiral wheels are overlapped in this way, the number of collisions is doubled, and in addition to that, the elapsed time from the collision of each spiral wheel to the next collision becomes longer, so it is further decelerated. . The deceleration effect is further enhanced if each of the plurality of spiral wheels collides with a separate wheel instead of a single wheel. 14, 15, and 16 are all devices that do not stop even if they become stationary after the collision, but rather are basically stationary after the collision.

When the outer peripheral rotating bodies having a spiral curve as a polygonal line face each other and approach each other as shown in FIG. 16 (a), or when the spiral curve is a polygonal line as shown in FIG. When a rotating body whose line does not pass through the center of rotation approaches the circular wheel while contacting each other, the number of sets approaching while contacting each other is set to multiple sets, so that multiple collisions occur in one rotation. Instead of repeating deceleration and acceleration, the rotating body that repeatedly causes the stop and rotation to be repeated so that the collision always starts from a stationary state, and the number of collisions as shown in FIGS. This is the same effect as preparing multiple arms of the same number.

FIG. 17 shows the expansion and contraction speeds of the springs with the magnets F attached to both “the spiral wheel M having the outer periphery of the spiral curve approaching each other as the spring expands and contracts, and the friction surface Ed facing the outer periphery of the spiral wheel”. With the device that decelerates, the axis of the two magnets is made to be a common straight line so that they are close to each other so that the spiral wheel M containing the magnet and the friction surface Ed containing the magnet face the door frame and the door. Immediately before the door closes, the spiral wheel M is pushed by the contact G as shown in FIG. 17 (a) with the link A and the spring V so that the same poles face each other. The repulsive force generated between the opposing surfaces of the magnet's both ends avoids the collision between the door and the door, and at the same time induces the rotation of the magnet so that the spiral wheel M moves away from the contact G and the spiral with a built-in magnet. Wheel M rotates.

When the spiral wheel M comes into contact with the friction surface Ed that contacts the outer periphery of the spiral wheel, the distance between the rotation center Im of the spiral wheel and the point Em where the outer periphery of the spiral wheel contacts the friction surface is maximum, and the spiral wheel is Both the spiral wheel and the friction surface approach each other while rotating and reducing the distance. Compared to the approaching distance of the distance between the two, the total length of contact between the outer periphery of the spiral wheel and the friction surface is longer, so the time required for approaching the door of the door becomes longer and the rotation speed of the door is reduced. At this time, the magnets built in both sides also rotate, and as shown in FIG. 17 (b), the force of the magnets does not affect both rotations in the vicinity of the axes of the two magnets being orthogonal.

When the axes of the two magnets are directly above and the same poles are facing each other, a repulsive force is generated and both rotations are started, and when different poles are facing each other, an attractive force is generated and both are in close contact and rotate. Stop. When the axes of the two magnets are in a common straight line and the same poles are brought close to each other, the repulsive force gradually increases, and the magnet cannot stay in the common straight line and tries to rotate. The rate of increase in height increases rapidly, and the force to rotate increases as well. Immediately before the door comes into close contact with the door, a repulsive force just before the contact occurs, avoiding a collision between the door and the door, and simultaneously inducing the rotation of the magnet. When the different polarities are brought close to each other, the attractive force gradually increases, the rotation of the magnet is accelerated, and the door is pressed against the door as shown in FIG.

When the door rotates in a direction to open away from the door stop, the force of the magnet is not affected, and the spiral wheel M returns to the stationary state shown in FIG. The spiral wheel other than when the door is closed always returns to a stationary state as shown in FIG.

The repulsive force generated when the same poles are close to each other becomes stronger as the poles approach each other. By attaching magnets to both the spiral wheel and the friction surface, the collision between the spiral wheel and the friction surface is eliminated. . The spiral wheel and the friction surface do not collide and start rotating with the repulsive force generated when the same poles approach each other, gradually becoming unaffected by the magnetic force, and both the spiral wheel and the friction surface contact each other Rotate while approaching. If the same poles are in close contact with each other at a position where a gap can be secured between the door and the door, the rotation of the door will stop and rotate immediately before the door closes. The inertia force attached to the door disappears, and even if there is a finger or the like between the door and the door, it will not be crushed.

17D, 17E, and 17F, the spiral wheel M shown in FIGS. 17A, 17B, and 17C is replaced with an eccentric wheel Me in which the position of the rotation shaft is shifted to a position that is slightly away from the center of the circle. In addition, the eccentric wheel Me decreases the distance from the contact surface with rotation in the same manner as the spiral wheel. 17 (a), 17 (b), and 17 (c) is replaced by a leaf spring Ve. When the leaf spring presses the outer periphery of the eccentric wheel, the “contact point between the leaf spring and the eccentric wheel and the eccentric wheel”. The distance to the rotation axis is always minimized, and the axes of both magnets are aligned so that the same poles face each other.

The straight line connecting the poles of the magnet Fd attached to the eccentric wheel Me passes through the center of the eccentric wheel and the rotation axis Im, and contacts the straight line connecting the poles of the magnet toward the contact surface Fd facing the longest part from the rotation center. Maintain a posture perpendicular to the surface Fd. The operations of the eccentric wheel and the magnets and leaf springs in FIGS. 17 (e), (f) and (g) are the same as the operations of the spiral wheel, magnet and pulling spring in FIGS. 17 (a), (b) and (c), respectively.

In FIGS. 17 (d), (e), and (f), an eccentric wheel Me in which the position of the rotation shaft is shifted to a position that is slightly away from the center of the circle is attached not only to the door side but also to the door stop side, so that the two magnets are When facing each other, that is, in each of FIGS. 17D, 17E, and 17F, the door-side component indicated by D and Fd is defined as Me, and the door-side component indicated by Fm is defined as “symmetrical line XX. If you keep the symmetric shape and replace them so that the axes of both magnets are on the same straight line and the same poles are close to each other, the same poles will rotate just before each other. However, both of them are reversed so that they are on the same straight line and attract different poles. In this case, since both are eccentric wheels Me in which the position of the rotating shaft is shifted to a position slightly away from the center of the circle, the distance between the rotating shafts and the different poles when the same poles approach each other are When approaching, the distance between the two rotating shafts is different, and after stopping once before the door closes, it rotates further in the closing direction while decelerating, and then the door is pressed against the door. The distance between the two rotation axes when stopping once before closing is different from the distance between the two rotation axes when pressing the door against the door. For this reason, the device shown in FIG. 17 is simply attached to a door that is moved by a spring, and there is no impact when the door is closed. If the device shown in FIGS. Can also be prevented.

The door shown in FIG. 18 is pulled by the wheel B that slides on the arcuate sliding surface K instead of the arm portion of the rotating body J and rotates. In the case of rotating by being pulled by a wheel rolling on the sliding surface, there is a reduction effect due to the rolling friction of the wheel, rather than the case where the spring directly acts on the arm portion of the rotating body J and rotates. 18A shows a state immediately before the door is closed, and FIG. 18B shows a state where the door is slightly opened. The running surface K is a circle whose center is Ok, and the distance between the wheel Ba moving on the running surface K and the rotation center Q of the rotating body J continues to increase as the rotating body J rotates in the direction in which the door D opens. . At the same time, the angle between the rotating body J and the arm connected thereto increases, and the tension spring Vj is stretched, and the door is closed back by the force stored in the stretched spring Vj.

A link A2 is rotatably supported on the rotation axis P2 of the wheel Ba attached to the tip of the arm A1 continuous with the tip of the rotating body J. The link A3 is connected to the connection axis P3 at the tip of the link A2 and the connection axis C of the door D. Connect and pull the door. The hitting Ga is attached to the link A2 and the connecting shaft P2 of the link. The hitting Ga restricts the rotation of the link A2 and prevents the link A2 from rotating in the direction of being pulled back to the door.

As shown in FIG. 18 (a), immediately before the door is closed, the door D and the link A3 are orthogonal to each other, the links A2 and A3 are orthogonal to each other, and the link is centered on the wheel Bj near the connection axis P3 of the links A2 and A3. A2 rotates, and the link A2 becomes a lever with the wheel Bj as a fulcrum, and the door D is drawn to the door stop Ng.

When the rotation of the rotating body J decelerates and the rotation of the door accelerates, the brake shoe Z attached to the end of the link A3 comes into contact with the back side of the arcuate sliding surface K. When the door moves electrically, the rotation speed of the door can be freely controlled, so the rotation of the motor can be stopped or decelerated so that the rotation is not transmitted to the door with increased dynamic inertia and increased rotation speed. In the case of a door that moves on the door, no matter how much the door is accelerated, the spring does not loosen in the middle, and the spring is always tensioned and exerts a force on the door, so the door is decelerated no matter how fast it is accelerated There is nothing.

For example, when the spiral wheel of the speed reducer is not attached to the rotating body J of FIG. 13, the rotation of the door is applied to the rotating body J that is moved by a spring to rotate in an unloaded state in an instant, and the door is rotated. Return. However, when the spiral wheel of the speed reducer is attached to the rotating body J of FIG. 13 or when it is possible to insert the spiral wheel and the wheel between the fulcrums at both ends of the pulling spring, as shown in FIG. If the arm that connects the “rotating body that gives rotation” and the door is bent twice, the door moves only with inertial force, and acts differently from “rotating body J that gives rotation to the door”.

In the case of FIG. 18, the “rotating body that gives rotation to the door” and the door are connected by two bent links, and the movement direction of the wheel sliding on the sliding surface and the movement direction of the link A3 pulling the door are almost orthogonal. The speed of the wheel sliding on the sliding surface becomes independent of the speed of the door. If it is possible to stop the sliding of the wheel Ba or stop extremely for a moment by adding the speed reducer described in FIGS. 14, 15, and 16, the rotation of the door is more preferable than the rotation that gives the door rotation. Get faster.

In the case of FIG. 18, as in the case shown in FIG. 13, if the arm connecting the door and the “rotating body that gives rotation to the door” is a link that can be bent, the door can be used as an arm that pulls the door. Regardless of the relationship, it continues to rotate only with inertial force, and can be made to hit the stop just before closing the door, and the door continues to decelerate without being accelerated. In this case, the door rotation speed is not reduced in the process of closing the door, but the door is accelerated to add dynamic inertia to the door and the inertia increases to increase the rotation speed. To convert.

In the case of FIG. 18, the brake shoe Z at the tip of the arm hits the back surface of the arcuate sliding surface K. However, when the arm A2 becomes a lever and draws the door D to the door contact Ng, the brake shoe Z at the tip of the arm is not allowed to hit the back surface of the arcuate sliding surface K. On the back and front of the arcuate running surface K, there is a difference between the down slope and the up slope for the same direction of travel of the wheels. The inclination on the front side on which the wheel Ba of the sliding surface K slides is a downward slope with respect to the traveling direction of the wheel B.

The inclination of the back side is an ascending slope with respect to the traveling direction of the brake shoe Z. When the contacting brake shoe climbs the ascending slope pulled by the wheel Ba, the brake shoe plays a role of being rebounded away from the running surface. Will disappear. The door once rotated in the opening direction is rotated again in the closing direction, and the accelerated door presses the brake shoe Z against the back of the sliding surface. Such an operation is repeated, and the vehicle is decelerated using inertial force just before the door is closed. Even if the brake shoe Z stops or moves and intermittently stops and moves alternately, the movement direction of the brake shoe Z is perpendicular to the movement in the traveling direction of the door, so that the door rotation is not vibrated. .

The two-branch rotator F is a rotator that rotates in a stationary range corresponding to G5 on both sides, and when the tip P1 of the rotator J passes between two wheels Bf attached to the tip of the two-branch rotator F. Rotate left and right. The position where the rotating body F is attached in the drawing is a position where the door is slightly rotated and the tip end P1 of the rotating shaft moves greatly, and is a position immediately before the door is closed. When the rotating body front end P1 passes between the two wheels Bf at the front end of the rotating body F and the rotating body F rotates in the closing direction, the door is decelerated when it starts rotating from the position of Gf1. When rotating toward the position of the hit Gf, the door is accelerated and pressed against the door stop Fg.

The force of the spring Vj that imparts rotation to the door causes the rotating body F to rotate immediately before the door closes and loses the force thereafter. Subsequent rotation of the door depends only on the spring of the rotating body F. Providing a separate “spring to press the door against the door” makes it possible to adjust the “force to press the door against the door”, which varies depending on the strength of the spring of the latch attached to the door. If a spring that presses the door against the door is not prepared separately, and the spring that rotates the door acts strongly when closing the door, the "force to press the door against the door" is unnecessarily increased. And receive great resistance when opening the door.

In general, in order to rotate the door, it is sufficient to have a force that can resist the frictional resistance of the rotating shaft of the door. Usually, the force is almost unnecessary and the difference between the spring without the device and the spring with the device cannot be felt.
However, in order to close the door until it is pressed against the door, an uncomparable spring force is required compared to the spring force that only rotates the door, and this force resists when the door is opened.

Patent Document 1 is a technology developed to open with the minimum necessary force. Even at the final stage when the force to close the door is no longer necessary, the “force to push the door against the door” remains in the spring. It solves how the spring force works when the door is opened or when the door is pushed against the door. However, Patent Document 1 tries to push the door against the door with the force of a spring that weakens as it closes. Designing the “force to push the door against the door” to the minimum necessary, the speed at which the door closes is set. When decelerating, the door stopped halfway or stopped without pressing it against the door, which was an extremely unstable technology.

In FIG. 18, apart from the “spring mechanism for rotating the door” that weakens as it closes, a “spring mechanism that presses the door against the door” is prepared, and the “spring mechanism that rotates the door” decelerates. While closing the door, immediately before the door closes, it is relayed to the "spring mechanism that pushes the door against the door", and the "spring mechanism that rotates the door" loses power while the door is closed, Is improved by restarting the door once stopped by closing by the “spring mechanism for pressing the door against the door”.

The farther the arm that pulls the door and the door connection shaft C is, the farther away from the rotation axis O of the door, the more the door can be rotated with a small force, and the door can be pressed against the door with a small force. However, the longer the connecting shaft C is away from the rotation axis O of the door, the longer the length of the “arm that connects the door and the drive part that pulls the door”. The structure of the arm connecting the two shown in FIG. 19 is a drive portion in which the arm A1 attached to the door side is rotated by a spring, and the wheel B attached to the tip of the arm A1 is centered on the rotation axis Ia attached to the door frame. It moves on the sliding surface Ak of the arm A that rotates in a compact manner and is stored compactly.

19A shows a fully opened state of the door, FIG. 19B shows a state immediately before the door is closed, and FIG. 19C shows a state in which the door D is closed and drawn to the door contact Ng. The sliding surface K and the rotation axis Ia are attached to the plate W attached to the door frame, and the arm A rotates about the rotation axis Ia, and the rotation hits Gk when the door is fully opened and is prevented. Further, just before the door closes, it hits and hits Ga.

As shown by the dotted line in FIG. 19A, the arm A1 is rotated about the connection axis C by the spring V as the door is closed from the fully open state. The arm A rotates in the direction of pulling the door around the rotation axis Ia while keeping the wheel B at the tip of the arm A1 at the tip of the arm A, and hits against Ga just before the door is closed and stops rotating. The “gradient of the surface that holds the wheel B at the tip of the arm A” changes from the substantially tangential direction of the circular motion of the wheel B to the radial direction as the arm A rotates, and the gradient that pulls the wheel B toward the terminal AA when the door is fully opened. To a gradient that moves away from the terminal AA. With respect to the direction in which the wheel B moves away from the end AA, the “gradient of the surface that holds the wheel B at the tip of the arm A” is an upward slope when the door is fully opened, but a downward slope immediately before the door is closed. When the rotation of the arm A is stopped just before the door is closed, the wheel B is simultaneously discharged from the tip of the arm.

As shown in FIG. 19B, an arc Rc + 10 indicated by a dotted line on the sliding surface K is a circle around the “position of the mounting axis C + 10 of the door D and the arm A1” immediately before the door is closed. A string connecting both ends of the arc at the portion is a sliding surface K on which the wheel B separated from the tip of the arm A slides. When the wheel B slides on the sliding surface K, the wheel is pushed back in the opening direction, and the reaction force is applied to the sliding surface, so that the wheel does not reach the end KKK at the end of the sliding surface. That is, the stop state can be confirmed once immediately before the door is closed. Assuming that the wheel B slides on the arc Rc + 10 indicated by the dotted line, the rotation of the door is stopped, and the wheel reaches the KKK at the end of the sliding surface in an instant with no load.

Even when the door is released and the door is closed by a strong wind, the opening operation is always inserted before the door is closed, so that it is possible to prevent accidents such as closing at once and pinching fingers. Further, as shown in FIG. 19, by attaching a shock absorber KK for mitigating the collision of the wheel B to the tip of the sliding surface K, it does not close with an impact sound. The wheel B away from the "tip of the arm A whose rotation is stopped by the hitting Ga" pushes in the buffer KK to mitigate the collision of the wheel B. At this time, the buffer KK has a sliding surface K tip BR> [ Rotating around the rotation axis Ikk, the gradient of the buffer KK becomes an upward gradient with respect to the direction of travel in the direction of the depression KKK at the end of the sliding surface, preventing the progress.

When the door is accelerated by a strong wind or the like, the buffer KK further rotates around the rotation axis Ikk, the gradient of the buffer KK further increases, and the direction of the depression KKK at the end of the sliding surface of the wheel B Impedes progress. The pushed-in buffer KK is pushed back by the push spring U, repels the arm A in the direction away from the running surface K, and the wheel B travels along the running surface K in the direction of the depression KKK at the end of the running surface.

In the state where the door is fully opened as shown in FIG. 19 (a), the wheel B fits into the recess AA at the sliding surface Ak end, and the door remains stationary. When the door is opened and closed a little, the wheel B reciprocates on the sliding surface Ak of the arm A that rotates away from the sliding surface K and stops rotating by Ga, and does not reach the recess AA at the end of the sliding surface Ak. . Depending on the position of the contact Ga, the rotation width of the rotation angle of the arm A becomes large. As the rotation width of the rotation angle of arm A increases, the inclination of the wheel with respect to the traveling direction increases, the wheel tends to roll, and the length of the spring when it is fully opened decreases, so the force when opening the door is The door is small and light.

In the state where the door of FIG. 19C is closed, the wheel B stays in the sliding surface, the terminal depression KKK, and the door frame side fulcrum of the tension spring V is fixed, and the spring V attaches the door D to the rotation axis O of the door. It will be pulled from a position far away from.

FIG. 20 is a door closer attached to a wall surface of the exterior door that faces the outside. The door closer is characterized by an extremely strong force for pressing the door against the door as compared with the force for rotating the door. The stronger the force that pushes the door against the door, the stronger the moment when the closed door is opened, but after the door is opened a little and the `` force to hold the door to the door '' is released, the spring is attached. Rotates lightly indistinguishable from no doors. The rotating shafts Ij and Ia and the sliding surface K are attached to the door frame, and the rotating body J and the two-branch rotating body F are rotatably attached to the rotating shafts Ij and Ia, respectively. The door frame, spring, and spring system are not shown in the figure.

A rotating body J is rotatably attached to the rotating shaft Ij, and a two-branch rotating body F is rotatably attached to the rotation If at the tip of the rotating shaft J. A wheel B1, The wheels B1 and B2 to which B2 is attached are attached to the back surface and the front surface with the rotating body F interposed therebetween, and each slides on the inner running surface and the running surface K of the arm A which are not on the same plane. The arm A is rotatably supported on the rotation shaft Ia, and the recess AA at the tip of the arm A is kept in the stationary state with the wheel B1 fitted into the recess AA when the door D is fully opened as shown in FIG. .

FIG. 20A shows a state in which the door D is closed and is pressed against the door contact Ng. The wheel B1 rotates around the wheel B2 fitted in the recess KK at the end of the sliding surface, and the wheel B1 is pressed by the arm A. The force is expanded by the lever principle and presses the door D against the door contact Ng. The force pressed by the arm A during the rotation of the door is distributed to the link A1 connecting the door D and the rotating shaft J and the wheel B2 on the sliding surface K, and a part of the force is involved in the rotation of the door. Thus, the force pressed down by the arm A is a force several times larger than the force for rotating the door.

FIG. 20B shows a state immediately before the door D is closed, and a sliding surface K + 10 on which the wheel B2 slides is a circle centering on the rotational axis position If + 10 of the two-branch rotating body F + 10 immediately before the door D is closed. Since it is a circumference, the door D is temporarily stopped while the wheel B2 is sliding on the sliding surface K + 10. FIG. 20C shows a state when the closed door is opened, and the wheel B2 moves away from the sliding surface K and follows a different route from when the door is closed. When the door is further opened, the wheel B1 slides on the inner sliding surface of the rotating arm A.

21, 22, and 23 illustrate a revolving door characterized by “a structure that can be retracted in the direction of opening just before closing” so that fingers or a body is not caught between the door and the door. It is designed so that the door can be retractably rotated in the opening direction only in the range immediately before the door is closed, not in the entire range of rotation. Accidents where a finger or body is caught between doors and doors are continuously rotated in one direction by 360 degrees or more with an electric drive device, even with revolving doors that rotate within 90 or 180 degrees. It also occurs in rotating revolving doors.

As shown in FIG. 21, a general revolving door that rotates 360 degrees has two entrances, a pair of entrances and exits WI and other parts that diametrically opposes a wall surrounding a cylindrical space in a circular or elliptical boundary wall. A protective fence is provided, and “several doors D or partitions that divide the cylindrical space into a plurality of compartments” rotate. The door D is pivotally supported by the "connection axis Id of the plate W that rotates about the rotation axis O", and the plate W rotates about the rotation axis O by electric or spring force, and rotates 360 degrees counterclockwise. Rotate to. The direction of rotation is indicated by ⇒ in the figure. The time immediately before the door closes is within the range of b, and the other is the range of b. The range A is a range in which the door D is fixed to the plate W within the range in which the door rotates, and the range B is a range in which the door D is fixed to the plate W in a retractable state immediately before the door is closed.

22 and 23, in order to explain the function of the prevention device, one rotating door is provided, and two positions where the door sandwiches a person are provided. This explains the functions of a general revolving door that rotates 360 degrees and a 90-degree revolving door.

FIG. 21A shows a state immediately before the door D is closed, and FIG. 21B shows a state immediately after the door D is closed. The rotation of the door D around the connection axis Id is stopped by Gl in the rotation direction and stopped by Gr in the opposite direction to the rotation direction, and the door D is fixed to the plate W. A sliding surface Kd is provided on the upper surface of the door D, and an elliptical sliding surface Ko is fixed to a plane perpendicular to the rotation axis of the door at a position higher than the upper surface of the door D. WW is a heavy object that moves with the rotation of the door D while simultaneously contacting both the sliding surface Kd and the sliding surface Ko. The upper surface of the door D reciprocates along the sliding surface Kd.

In the range in which the door rotates, the door D is fixed to the plate W with the rotation axis Id and the door sandwiching Gr and Gl from both sides, but in the range B immediately before the door closes, the door D is Gr. , Gl out of Gl stops when it stops rotating in the direction opposite to the rotation direction of the door, and door D can be retracted to the plate W with two of Gl per rotation axis Id and stop rotation in the door rotating direction. It is fixed in the state. When sandwiching the range B in the human body immediately before the door is closed, the doors to rotation in a direction opposite to the rotation direction of the door about an axis of rotation Id, opening from a state sandwiching the human body. In order to stop the rotation in the direction opposite to the rotation direction of the door so that the contact Gr is released, the contact Gr moves circularly around the rotation axis of the door. Gr can be removed only in the range B just before closing.

If this "state of being fixed in a retractable state in the plate W" is limited to only a small range B immediately before the door is closed, to have a dynamic inertia door, the door around an axis of rotation Id without the rotation to Turkey in a direction opposite to the rotation direction of the relative door and naturally plate W Te, but the door even within a small range b immediately before the door is closed by receiving the air resistance and other frictional resistance, since the door is in a trend you rotate in a direction opposite to the rotation direction of the relative door and naturally plate W about a rotation axis Id, the heavy WW immediately before the door is closed to the center O of rotation of the door by close, to increase the rotational speed of the door, the door around the rotation axis Id Te Unishi by you rotate to accelerate the rotation direction of the door, opposite direction to the rotation direction of the relative doors with the plate W Prevent rotation.

FIG. 22A shows a state in which the door is fully opened, and FIG. 22B shows a state immediately before the door is closed. The door D is rotatably supported by the “connection axis Id of the plate W that rotates about the rotation axis”, and the door D rotates in the opening direction about the connection axis Id of the plate W only within a certain range immediately before closing. The door D can be retracted. In other rotation ranges of the door, the door is fixed to the plate W so that the door cannot rotate in the opening direction around the connection axis Id. An alternate long and short dash line X indicates a wall core of the field wall, and N indicates a door frame.

FIG. 22 is a plan view of the upper surface of the door D fixed to the plate W rotating about the rotation axis O as viewed from above, and the plan view of the lower surface of the door D as viewed from below is symmetrical with FIG. . Since the upper surface of the door D has the same structure, the upper surface will be described. The upper surface of the door D is rotatably attached to the rotation axis Id of the plate W, and a recess Kd is provided on the side surface of the door D on the rotation axis side, and the wheel B is fitted in the recess Kd. When the wheel B fits into the depression Kd, the door D cannot be rotated about the rotation axis Id of the plate W and is fixed to the plate W. When the wheel B escapes away from the depression Kd, it can rotate around the rotation axis Id of the plate W. The door D can rotate around the rotation axis Id in the direction opposite to the direction indicated by ⇒ in the figure, but the door D cannot rotate when it hits the plate W in the direction indicated by ⇒ in the figure.

Even if the door D is retracted and fixed to the plate W within the range B, the door D does not rotate in the opening direction due to dynamic inertia, but the door that rotates with the force of the spring or the electric drive part is the drive part. When the force from is no longer transmitted to the door, the door rotates in the opening direction due to air resistance and other friction. Therefore, a certain amount of fixing is necessary so that the door does not rotate in the opening direction.

The wheel B is attached to the tip of an arm that rotates about the rotation axis Ia of the plate W, and the wheel B is pressed against the depression Kd by the pulling spring V and fitted. Since the wheel B fitted in the depression Kd is close to the rotation axis of the door D, if an external force is received at a position away from the rotation axis of the door D, it cannot be left in the depression Kd by the spring force and is discharged. The

When a large force is applied to a position away from the rotation axis of the door D, such as when a person before the door is closed is sandwiched, the wheel B is discharged from the depression Kd and the door is retracted in the opening direction. If a finger is caught between the door and the door, even if the door is retracted in the opening direction, the finger is injured by the inertia force of the door. For the problem of pinching a finger between the door and the door stop, it is necessary that a device that temporarily stops or rotates in the opening direction immediately before the door is closed needs to work. The door described above is temporarily stopped with a gap just before the door with dynamic inertia is completely closed just before the finger is pinched, and after having stopped once, it starts to rotate again. Also, if a finger or the like is interposed in the gap immediately before closing, the spring will not work on the rotation of the door. After the door closing force is disabled, the device of FIG. 22 is activated.

K is a circular sliding surface centered on the rotation axis O, and is a fixed sliding surface. Within the range of B just before the door closes, a recess KK is provided on the sliding surface K so that the `` wheel B attached to the tip of the arm rotating around the rotation axis Ia of the plate W '' can be retracted into the recess KK. It is. In the other range of A, which is not within the range of B just before the door is closed, the wheel B slides on the circular sliding surface centered on the rotation axis O so that it cannot be retracted into the recess KK. B cannot be moved between the depression Kd and the depression KK.

The arm A can rotate around the rotation axis Ia of the plate W, and the wheel B attached to the tip of the arm A moves in the radial direction of "circular movement about the rotation axis Ia of the plate W of the door D" by the force of the spring V. The depression Kd is pressed to restrain the tangential movement of the “circular movement about the rotation axis Ia of the plate W of the door D”.

When a finger or body is sandwiched between the door D and the door stop N at a position away from the rotation axis Ia of the door D, the `` recess Kd on the side closer to the rotation axis O from the rotation axis Ia of the door D '' is the rotation axis. It rotates in the direction away from the plate W around Ia. At that time, the wheel B slides along the inner inclination of the depression Kd, the spring V is extended, and the arm A rotates about the rotation axis Ia of the plate W. The wheel B discharged from the depression Kd is retracted into the depression KK and fits into the depression KKK at the end of the depression as the plate W rotates about the rotation axis Ia. When the wheel B fits into the recess KKK at the end of the recess, the recess KKK is in a fixed position, so that it acts as a hit, and the rotation of the “plate W that rotates about the rotation axis Ia” is stopped. As a result, the rotation is not transmitted to the door even if the operation of the drive portion does not stop.

The revolving door shown in FIG. 23 has substantially the same structure as the revolving door shown in FIG. 22, but the hollow of the revolving door D shown in FIG. 23 is “the hollow Kd of the revolving door shown in FIG. 22 of the revolving door shown in FIG. The side surface on the plate W side is extended, and the sliding surface K shown in FIG. 22 is provided with the wheel B on the rotary shaft O side of the door so that the wheel B is not discharged from the depression Kd. 23 is provided on the side opposite to the rotation axis O of the door so that the wheel B is discharged from the depression Kd.

Further, in the range of B just before the door is closed, the revolving door shown in FIG. 22 is such that the wheel stuck in the depression Kd applies a pressing force in the radial direction of “rotation about the door rotation axis Id”. 23 is restrained so as not to move in the tangential direction of the rotation. However, in the revolving door shown in FIG. 23, the wheel B fitted in the depression Kd is separated from the depression Kd, and “the rotation axis Id of the door is the center. Do not constrain "rotate".

When the wheel B moves away from the depression Kd, it touches the inner contact surface KK of the sliding surface K and passes between the sliding surfaces K and K0, so that the wheel B is “an extended side surface on the plate W side of the depression Kd”. , And the wheel B moves in a circular motion around the rotation axis Ia, with the `` extended side surface on the plate W side of the depression Kd '' parallel to the radial center line of the door. As in the case of 21, it rotates in the rotation direction around the rotation axis Id. At this time, a force in the rotational direction acts on the door to counteract a force such as air resistance that rotates the door in the backward direction.

FIG. 23 (a) shows that the wheel B, which has been slid on the sliding surface K0 in the range of A and sandwiched between the sliding surface K0 and the depression Kd, contacts the inner contact surface KK of the sliding surface K in the range of D. FIG. 23 (b) shows a state in which the wheel B is recessed from the depression Kd and the door D is rotated around the rotation axis Id in the rotation direction. Indicates. Basically, the wheel B circularly moves outside the circumferential running surface around the rotation axis of the plate, and does not contact the running surface K in FIG. 22 and the running surface K0 in FIG.

When the wheel B moves away from the depression Kd, the “rotation about the rotation axis Id of the door” is not constrained, so that a person is caught in the door and the door rotates in the retreat direction. When the wheel B is discharged from the depression Kd, the revolving door shown in FIG. 23 slides on the inner sliding surface Kdd extended from the depression Kd and rotates in the closing direction immediately before closing the door . Even when the “restraint of rolling” is released, the revolving door is prevented from opening due to the influence of wind or the like.

1-9, when the rotating body D is rotated in series with the spring V and the arm A connected in series, the rotation axis Q of the arm A is between the fulcrums at both ends of the spring V as shown in FIG. The spring V functions as a toggle spring that keeps the arm A stationary at the position of the two hits G, and simultaneously rotates the rotating body D on the straight line T0 in the rotation direction of the arm A.

If the rotating body D on the straight line T0 is a closed door, the arm A will rotate until it stops at the position of Gq by slightly rotating the arm A until the door also stops at the position of contact Ga in the direction of rotation of the arm A. Rotate. If the arm A is touched by just opening the door a little and it is rotated until it stops at the position of Gq, the door will open fully when it opens a little, and the arm A will hit Gq0 just by closing the door a little at the fully opened position. If it is rotated until it stops at the position, the door becomes a door that closes when it is closed a little.

For people in wheelchairs, those who cannot open their doors with luggage, or those who open the door while pushing the cart, the door can be closed after opening the door and passing through the doorway Rather, it is more convenient to open the door a little and then fully open it, and just close it a little. It is better to add a function to fully open the door closer that opens when it opens. Also, even if it is good to go outside with an open door, it is necessary to go back both when opening and closing the door when entering the room with the open door, and it opens and closes only in the indoor or outdoor direction of the door A 180-degree rotating door that opens and closes in both directions inside and outside the door is more convenient than a 90-degree rotating door.

In order to open the door a little and open it fully, and to close it just by returning it a little, you have to move it in both directions. It is necessary to switch the direction of the spring to the opposite side each time, and the problem can be solved simply by switching the device that can handle both directions by changing the position of the fulcrum of the spring acting on the door each time.

In the case of a door that can be closed (returned) without releasing your hand, it is sufficient to store in the spring the force to return the door in the entire process while the door is fully open, but it opens fully (if it rotates) In the case of a door (rotating in the direction of rotation), it is necessary to store in the spring the force of full opening in a short process of slight rotation at the beginning of opening. To rotate the arm A until it hits and stops at the position of Gq with a little opening of the door is to store the force of full opening in the short process of slight rotation at the beginning of opening in the spring. A slight rotation at the beginning of opening requires a force sufficient to “store the force of full opening in the spring”, and a large force is required at the beginning of opening, but the force to rotate the door is not so large.

Even if you open it a little, you can make it a fully open door, but if you release your hand, it must be closed. Before closing, the rotating force of the door runs out and stops halfway, which may result in no "force to press the door against the door". Even when the door is fully opened, even if the door is closed and closed without permission, if the door is not pressed against the door securely, there is no point in releasing it and closing it without permission.

Whether it is a door that closes automatically when you release it, or a door that opens fully if you open it a little, the `` force that pushes the door against the door '' when it closes is the force that is loaded when it is closed, and the load when you open it The force that pulls the door fully open at the moment when the door is opened and the force that pulls the door fully open and the force that pushes the door to the door are stored in the spring. become.

1-9, when the spring on the straight line T0 moves away from the straight line T0, the rotating body D rotates in the direction away from the straight line T0, and the rotation stops until the spring loosens or hits the rotating body. Continue until. FIG. 24A shows a door D rotated by a tension spring V, and FIG. 24A and 24B, when the door D is on the straight line T0, the door-facing direction T coincides with the spring-facing direction v, and "the force for rotating the door" stored in the spring UV is stored. Is maximized.

If the door D leaves | separates from the straight line T0, the door will continue to rotate in the separated direction like the case of FIGS.
FIG. 24C shows the case where the wheel B attached to the door D is pressed by the “arm A whose rotation axis rotates about Q by the pulling spring V”, and FIG. 24D moves along the upper surface of the door. When the wheel B to be pressed presses the sliding surface K with the force of the pushing spring U, the vertical line v at the contact point between the wheel and the arm A or the sliding surface K passes through the center of rotation of the wheel, and the force action line It is. When the force action line v coincides with the straight line T0 passing through the rotation center O of the door, the door stops rotating, but when the action line v moves away from the straight line T0, the door continues to rotate in a direction away from it.

In FIG. 24, when the door is opened or closed to the position of T0, it is rotated until it is fully opened or until it hits the door. It is devised to rotate freely.

As shown in FIG. 25, the spring Vd has one end connected to the door connecting shaft Sd and the other end connected to the arm fixed shaft Sa to rotate the door D. When the fixed axis Sa is outside the rotation range of the door, the door always rotates in the “direction in which the fixed axis Sa at the arm tip is present”. If the door is in the T + 90 position when it is fully open and if it is in the T + 0 position when it is closed, the arm fixed axis Sa is outside the rotation range of the T + 90 side door. The door is fully open when in position, and the door rotates in the closing direction when it is outside the T + 0 side door rotation range.

When the door is closed, the fixed shaft Sa at the arm tip is outside the rotation range of the T + 0 side door, but the door is opened slightly and the fixed shaft Sa at the arm tip is rotated by the T + 90 side door. When moved out of range, the door is fully opened. Similarly, when closing an open door, rotate the door slightly in the direction to close it, and change the `` fixed shaft Sa at the arm tip outside the rotation range of the T + 90 side door '' to the rotation range of the T + 0 side door. When it moves outside the door, the door rotates in the closing direction.

For doors that open fully when opened slightly, and close when closed slightly, at the initial stage of rotation when the door is opened or closed slightly, slightly rotating the door increases the fulcrum of the spring that pulls the door. The problem is whether to move it. In FIG. 25, a slight rotation of the door at the initial stage of rotation is reduced by the spring fulcrum Sa by meshing a gear with a different speed ratio between the gear Jo rotating together with the rotation of the door and the gear Jq fixed to the arm A. It has been converted into a big move.

A rotating body F that is rotatably attached to the rotation axis If of the door is a device that will be described later with reference to FIG. 26, and rotates the gear Jo only when the door is slightly rotated at the initial stage of rotation. When Jq is transmitted and arm A is rotated slightly, it is rotated by toggle spring Va thereafter. When the fulcrum Sa of the spring moves greatly until the arm A is fixed by the contact Ga and the toggle spring Va, the door rotates in the direction in which the fulcrum Sa of the spring moves. The arm A swings left and right around the rotation axis Q on the bisector of 45 degrees between T + 0 and T + 90.

As shown in FIG. 25 (b), the rotation axis O of the door and the position Q of the rotation axis of the arm are intermediate between "the position of the spring fulcrum Sa of the arm tip and the spring fulcrum Sd of the door side". When the arms A are opposite to each other, the arm A tries to rotate in the direction opposite to the rotating direction. However, as the door is further rotated and the arm A and the spring Vd overlap each other, the arm A becomes difficult to rotate. As shown in FIG. 25 (c), the arm A does not rotate in the returning direction after the spring Vd is in the middle and the rotational axis O of the door and the position Q of the rotational axis of the arm are on the same side.

Since the arm A rotates 90 degrees only by slightly rotating the door D, the radius of the gear Jq attached to the arm A only needs to be sufficiently smaller than the radius of the gear attached to the rotating body Jo. The blade attached to the outer periphery of the gear attached to the rotating body Jo may be attached to one-fourth of the entire circumference of the gear Jq attached to the arm A, not to the entire circumference, and rotates by the number of teeth attached to the gear Jq attached to the arm A. It can be attached to the gear attached to the body Jo. 27 and 28, the number of blades is one or two.

FIG. 26 is an explanatory diagram of an apparatus for rotating the rotating body Jo of FIG. 25 following the rotation of the door D. Each of the rotating bodies F0 and F90 has wheels B0 and B90 on the sliding surface Kf side around the rotation axis If. The ends Fg0 and Fg90 on the opposite side of the wheel are in contact with G0 or G90 and are separated from each other. As shown in FIG. 25, the sliding surface Kf is a circumference centered on the rotation center O of the door, and both ends of the circumference are portions Kf0 and Kf90 where the distance from the rotation center O is small.

As shown in FIG. 26, the rotating body F to which the door of FIG. 25 is attached has two rotating bodies F0 and F90 rotatably supported on a common rotating shaft If, and the wheels attached to the ends of the rotating bodies slide. By riding on the surface, the end portion on the opposite side of the wheel moves to a position where it does not hit the “contact of both side surfaces of the rotating body Jo shown in FIG. 25”. The door rotation range involved in the 90 ° rotation of the arm A shown in FIG. 25 is limited to the range in which the door D rotates slightly from the stationary state at the end of rotation, and is not involved in any other range. .

As shown in FIG. 26 (a), when the wheel B0 is on the end Kf0 of the sliding surface, "the end Fg0 on the opposite side of the wheel B0 of the rotating body F0" is in contact with "the contact G0 that attaches to the rotating body Jo". To rotate the rotating body Jo. As shown in FIG. 26 (b), when the wheel Bo rides on the sliding surface Kf, the opposite end Fg0 moves away from G0 and passes without rotating the rotating body Jo. FIG. 26 (c) shows a state in which the rotating body F90 moves in the direction opposite to the above-described F0. The rotator F90 operates exactly the same as the rotator F0 except that the moving direction is opposite.

FIG. 27 shows a series of operations in which “the wheel B at the tip of the rotating body Jd attached to the door” and “the depression K in the long hole of the circular arc formed in the rotating body Jq attached to the tip of the spring Sa” are engaged. Thus, the rotator Jq swings left and right around the rotation axis Q on the bisector of 45 degrees between T + 0 and T + 90, as with the arm A in FIG. The rotating body Jq rests against the left and right hits Ga0 and Ga90 by a toggle spring Va having one fulcrum attached to Sq on the bisector of 45 degrees between T + 0 and T + 90.

In FIG. 27 (b), when the rotating body Jq rotates 45 degrees or more, the toggle spring Va works, and the wheel B rotates freely 45 degrees without pressing the side surface of the depression K, and the rotating body Jd is also interlocked. Rotates and the contact between the wheel B and the depression K is released. As a result, the rotating body Jq rotates 90 degrees only by slightly rotating the door D from the stationary state at the end of rotation. When the rotating body Jq rotates 90 degrees and the fulcrum Sa of the spring rotates 90 degrees, the door is pulled by the spring and rotates freely.

The rotating body Jd attached to the door is a rotating body with wheels B attached to both ends around the rotation axis Ij. Two wheels are attached, and one wheel B at the tip of the rotating body Jd is attached to the rotating body Jq. Engages with the recess K in the elongated hole of the given arc

When two gears mesh with each other and transmit rotation, the positions of both rotation axes are fixed, and the positions at which the two gears mesh are on a straight line connecting both rotation axes. The wheel B at the tip of the rotating arm Jd attached to the door fits into the recess K in the long hole of the arc formed in the rotating body Jq, and the rotating shaft Ij of the arm Jd, which is also a single gear, is connected to the rotating shaft O of the door. Revolving around the center of the rotating body Jq without the wheel B and the depression K coming off even if the "position where the two gears, ie, the wheel B and the depression K mesh with each other" is away from the straight line connecting the two rotation axes Ij and Q. Until the rotating body Jq hits Ga and stops rotating.

When the radial center line Td of the door passing through the rotation axis of the door D and the axial center of the spring Vd overlap, the door is stationary, and if it moves away from the axial center line Td of the spring Vd, the door rotates to the right and left If you leave the door, the door will rotate to the left. The further away the spring fulcrum Sd is from the door rotation axis O in the direction perpendicular to the stationary door, the more the door rotates.

When the rotating body Jq stops by either the left or right hit Ga0 or Ga90 by the toggle spring Va, the door rotates toward the spring fulcrum Sa. Even when the rotating body Jq is not stationary, as shown in FIG. 27D, when the spring Vd passes over the rotation axis Q of the rotating body Jq, the door rotates freely even if the hand is released. When the angle at which the two fulcrums of the spring Vd are viewed from the rotation axis Q of the rotating body Jq is smaller than 180 degrees, the door rotates freely even if the hand is released.

FIG. 27 (d) is a view of FIG. 27 (a) viewed from the back. When a series of operations from FIG. 27 (a) to FIG. 27 (d) is an operation for opening the door, FIG. ) To FIG. 27 (a), a series of operations can be represented by the drawings of FIG. 27 (a) to FIG. 27 (d) as viewed from the back, and FIG. 27 (a) to FIG. The same series of operations up to d) are also established in the reverse direction. When the door is slightly rotated, the rotational movement of the fulcrum Sa of the spring attached to the tip of the arm A starts, and the door D is closed in a direction Will rotate.

For doors that are fully opened if opened slightly and closed if closed slightly, it is necessary to convert "slight rotation of the door at the initial stage of rotation" into a large movement of the spring fulcrum Sa, and the spring fulcrum Sa is moved greatly. And a rotating body that rotates the rotating body by “a slight rotation of the door at the initial stage of rotation”. In FIG. 28, “Rotating body J that largely moves the fulcrum Sa of the spring” is a Y-type rotating body that rotates about the rotation axis O of the door, and branches are radiated from the rotation axis in three directions, and one of them is radiated. One fulcrum Sa of the spring V is attached to the tip of the branch A, and the other fulcrum of the spring V is attached to the top end Sd of the door. Wheels B0 and B90 are attached to the tips of the remaining two branches Jd0 and Jd90, respectively.

One branch A of the three branches of the rotating body J rotates through a range of 90 degrees between the hits Ga0 and Ga90, and when hitting the hit Ga90 as shown in FIG. The door rotates toward T + 90. When the door is in the fully open state when it is at the T + 90 position, and when it is in the closed state when it is in the T + 0 position, the door is slightly rotated from the state shown in FIG. When rotating toward Ga90, when the spring V passes across the position of the rotation axis O, the door D continues to rotate until it is closed. As shown in FIG. 28 (c), the branch A hits Ga0 and does not rotate any more.

In FIG. 28, “rotating bodies Jq0 and Jq90 for rotating the rotating body Jd with a slight rotation of the door at the initial stage of rotation” are on straight lines T + 0 and T + 90, respectively, on the same plane as the rotating body J To rotate around the rotation axes Q0, Q90. The rotary shafts Q0 and Q90 are fixed to a door mounting frame, respectively, and fixed at positions that form an angle of 90 degrees with respect to the rotary shaft O of the door. Each of the rotating bodies Jq0 and Jq90 is rotatably supported by rotation axes Q0 and Q90, and a long branch and a short branch are radiated from the rotation axis in two directions, and one long branch is the two branches Jd0 and Jd90. Is always accommodated between the wheels B0, B90 at the tip of the wheel. The wheels B0 and B90 slide in contact with the long branches of the rotating bodies Jq0 and Jq90.

The long branches of the rotating bodies Jq0 and Jq90 contact the wheel B of the Y-type rotating body J and transmit the rotation to the Y-type rotating body J. As shown in FIGS. 28 (a) to (c), the rotating bodies Jq0, When either one of the long branches of Jq90 rotates the rotating body J, the other is flipped up by the rotating body J. The rotation of the rotating bodies Jq0 and Jq90 for rotating the Y-shaped rotating body by 90 degrees is larger as the rotation radius of the branch tip centered on the rotation center Q is larger than the rotation radius of the wheel centering on the rotation center O. It will be small.

The tip of the short branch opposite to the long branch of the rotating bodies Jq0 and Jq90 enters and exits between the projections Gd0 and Gd90 attached to the top of the door. 28A to 28C, the short branch tip is between the projections Gd0 and Gd90, and when the door rotates in the closing direction, the short branch tip is pushed by the projection Gd0 and the rotating body Jq rotates to rotate the rotating body. Shows the state of rotating Jd. When the door D further rotates from the state shown in FIG. 28 (c), the end of the branch is easily separated from between the projections Gd0 and Gd90, and the door is indicated by a dotted line on the straight line T + 0 shown in FIG. 28 (c). As indicated by D + 0, the tip of the branch away from between the protrusions Gd0 and Gd90 tends to enter between the protrusions Gd0 and Gd90.

The rotation radius around the rotation axis O of the wheel B at the tip of the rotating body Jd is smaller than the rotation radius around the rotation axis Q at the end of the long branch of the rotating body Jq. The smaller the rotation radius centered around the rotation axis O of the projection Gd that attaches to the top of the door, the smaller the rotation of the door will cause the spring fulcrum Sa to rotate greatly, and the door will start. A big resistance is added when making it.

FIG. 29 shows the case where the door shown in FIG. 28 rotates 180 degrees from the closed position on the straight line T + 0 to the left and right T-90 or T + 90, and the door is on the straight line T + 0. When the door is closed, that is, at the end of rotation of the door that is automatically closed, a drop that stops the rotation in both the left and right directions is automatically entered, and when the door is opened left and right, the above-mentioned drop is raised. When the door is opened and the drop is raised, the door D rotates in the direction in which the fulcrum S of the spring attached to the rotating body J moves.

FIG. 29 is a superposition of two devices shown in FIG. 28. “Apparatus mainly including J-90 and V-90 working in the range of T + 0 to T-90” and “T + 0 to T +”. It is composed of a device with J + 90 and V + 90 working in the range of 90 as main components. As shown in FIG. 29 (a), when the door D is on the straight line T0 and closed, the spring forces of the two devices are balanced and the door is stationary.

When the door is opened and closed in the range of T + 0 to T + 90 as shown in FIG. 29 (b), the device J + 90 working in the range of T + 0 to T + 90 moves, and the spring T + 0 to T- The device J-90 working in the range of 90 does not move, and the spring V-90 loosens when the door opens and extends when the door closes to slow down the door closing speed.

FIG. 30 shows a “rotating body J that largely moves the fulcrum S of the spring” provided with a heart-shaped long hole H, and “the end of the arm A that is rotatably supported by the rotating shaft Ia that is attached to the top of the door”. The wheel B "moves in the long hole H so that a slight rotation at the time of starting the rotation of the door is changed to a large rotation of the rotating body J. In FIG. 27, the wheel B of the rotating body Jd is accommodated. The depression K is a heart-shaped slot H so that the depression B continues to accommodate the wheel B. FIG. 30A illustrates the process of rotating in the closing direction from “the door is on the straight line T90 and opened”, and the state when the door is on the straight line T + 70 is indicated by a solid line. A state in which the rotation axis Ia of the arm moves on an arc Ro centered on the rotation axis O is indicated by a dotted line.

When the door starts rotating, the wheel B at the tip of the arm is moved along the upper side of the heart-shaped long hole H by the pulling spring Va, and is inserted into the recess at the upper side end to push and rotate the rotating body J. When the rotating body J hits and hits Gj0 and stops rotating, the wheel moves away from the upper side of the heart-shaped long hole H in the axial direction and approaches the rotational axis O in the axial direction as indicated by the wheel B + 20.

FIG. 30B illustrates how the wheel B + 20, which was at the lower end of the heart-shaped long hole H just before closing, returns to the upper side of the heart-shaped long hole by the force of the spring Va. It is designed so that the tangential direction of the circular motion around the rotation axis Ia coincides with the axis of the heart-shaped long hole H.

FIG. 31 is a diagram in which two devices shown in FIG. 30 are overlapped in the same manner as FIG. 29. “Devices having J-90 and V-90 working in the range of T + 0 to T-90 as main components” and “T A device having J + 90 and V + 90 as main components working in the range of +0 to T + 90 ”. As shown in FIG. 31A, when the door D is on the straight line T0 and is closed, the spring forces of the two devices are balanced and the door is stationary. When the door is opened and closed in the range of T + 0 to T + 90 as shown in FIG. 31 (b), the device J + 90 working in the range of T + 0 to T + 90 moves, and the spring T + 0 to T- The device J-90, which works in the range of 90, does not move, and the spring V-90 loosens when the door opens and extends when the door closes, reducing the speed at which the door closes.

When the wheel B + 90 at the tip of the arm located on the upper side of the heart-shaped elongated hole in FIG. 31 (b) is rotated in the direction in which the door is further closed, the wheel B + 90 moves along the axis of the hole in the heart-shaped elongated hole. As shown in (c), it returns to the upper side of the heart-shaped slot just before closing.

30 and 31 show that the wheel at the tip of the arm moves inside the heart-shaped long hole, but FIG. 32 shows the shape of the long hole as an arc shape with a depression Hc in the center. (A) When the door D is slightly rotated in the closing direction from the open state on the straight line T90, as shown in (a) and (b), the wheel B at the end of the arm gets stuck in the recess Hc in the center of the arc long hole. The rotating body J is rotated.

27, 30, and 32, “the rotating body that rotates with a slight rotation at the initial stage of the door rotation” is the maximum rotation angle of the door when it is opened with the rotation angle when closed as 0. In the case of a corner, it is a rotating body that has a rotation axis on the bisector of the maximum rotation angle of the door and rotates opposite to the door, and "the tip of the arm that is rotatably supported around the rotation fulcrum attached to the door. A long hole H that accommodates the `` wheel attached to '' is applied, and the long hole H is rotated until the rotating body J hits the part where the wheel B is loaded while the door starts rotating and slightly rotates The wheel B is composed of two parts that are retracted.

25, 27, 28, 30, and 32, one fulcrum is connected to a fulcrum on the bisector of the maximum rotation angle of the door, and the other fulcrum is hit by a toggle spring attached to the rotating body. If the door does not overlap with the pulling spring that connects the tip of the rotating body J and the door, the door continues to rotate. Further, when the rotating shaft of the rotating body is on the same side as the pulling spring of the door rotating shaft, the rotating body does not rotate in the returning direction only by the action of the pulling spring without the toggle spring.

A wheel Ba90 is installed in the vicinity of the straight line T90, and a wheel Ba0 is installed in the vicinity of the straight line T0. These wheels slide on the longitudinal side surface of the arm A at the start and end of the rotation of the door, respectively, and are shown in FIG. As shown in FIGS. 32 (b) and 32 (c), the wheel Ba90 is restrained from the side in the longitudinal direction of the arm A so that the "wheel B fitted in the depression Hcl at the start of rotation of the door" does not escape from the depression Hc. When it leaves, the wheel escapes from the depression Hc and moves on the sliding surface of the arc inside the slot, reaching He at the end of the arc. As shown in FIG. 32D, the wheel Bao and the arm come into contact again at the end of the rotation of the door D, and the wheel B at the tip of the arm is accommodated in the recess Hc.

The door in FIG. 33 has a structure in which “the connecting axis C of the door rotating around the rotation axis O” and “the rotation axis Q fixed to the door frame” are connected by two links A1 and A2, and the door D and the link are connected. The “arm J with the wheel B attached to the tip” is attached to the connecting shaft C with A2, and the fulcrums at both ends of the spring V are attached to the arm J and the link A2.

The sliding surface K has a circumference centered on the rotation axis O of the door, and at the end of the circumference, there are provided depressions K0 and K90 in which the wheel B is fitted and the arm J changes its direction. When the wheel B presses the sliding surface K from above with the force of the spring V, in the case shown in FIG. 33 (a), the link A2 is attracted to the door D, and the links A1 and A2 are folded so that the door D moves to the wheel B. Rotates in a direction toward the depression K90. In the case shown in FIG. 33 (c), the wheel B presses the sliding surface K from above with the spring V, so that the link A2 is pulled away from the door D, and the links A1 and A2 extend in a straight line. It rotates in the direction toward the depression K0.

FIG. 33 shows a door in which the wheel B is pressed down from the top of the sliding surface by pulling BR> o. When the hand is released from the door, the door rotates in the rotated direction. If the pulling spring of FIG. 33 is used as a push spring to hold the wheel B from the bottom of the sliding surface, the door rotates in the direction of returning when the hand is released from the door.

The door D is rotated by being pushed by the wheel B with the wheel B behind. As shown in FIG. 33 (a), at the end of the rotation of the door, the wheel B + 80 that enters the recess K90 is behind the door and beyond the door as viewed from the recess K90, but the wheel is recessed. When the door starts to rotate later, as shown in FIG. 33B, the wheel B comes to the front of the door as seen from the depression K90. That is, when the door D starts to rotate in the depressions K90 and K0 at both ends of the circumferential running surface K, the wheel stuck in the depression is left behind, and whenever the wheel escapes from the depression, it always follows the door. The door is rotated in the direction of rotation.

With revolving doors, accidents such as a door that opens freely collide with a person are assumed, but in the case of a sliding door, there is no concern. FIG. 34 shows the apparatus attached to the revolving door in FIG. 33 attached to the sliding door D that reciprocates on VwKd. As in FIG. 33, the connecting shaft C of the sliding door D and the rotating axis Q of the door frame are divided into two. Linked by links A1 and A2, and attached to the connecting shaft C is a "rotary body J on which a wheel B that moves while contacting the lower surface of the sliding surface K is attached in the middle".

As shown in FIG. 34 (a), when the spring V is on the opposite side of the rotation axis Q when viewed from the connection axis C, the links A1 and A2 are folded and the door moves toward the door contact Ng. . Also, as shown in FIGS. 34B and 34C, when the spring V is on the same side as the rotation axis Q when viewed from the connection axis C, the links A1 and A2 are stretched in a straight line, and the door is in the direction of leaving. Moving.

As shown in FIG. 34 (a), when the door hits the door stop Ng, the wheel B fits in the gap Kr between the sliding surface K and the door stop Gr. When the door D is slightly separated from the door contact Ng, as shown in FIGS. 34B and 34C, only the door D moves while the wheel B remains in the gap Kr. As a result, as shown in FIG. 34 (c), the wheel B is positioned behind the connecting shaft C with respect to the traveling direction of the door. The same phenomenon occurs at the end Ke on the opposite side of the running surface of the wheel B. If the wheel B is slightly closed, the door B moves freely until it is closed.

The sliding door D in FIG. 35 is the same as the sliding door in FIG. 34, “the device that changes the direction at the end of the sliding surface and moves the fulcrum of the pulling spring V greatly” and “the wheel Ba holds the upper surface Ksu of the sliding surface of the slope from above. The device moves in the direction of descending the slope or moves in the direction of ascending the slope while pushing up the slope lower surface Ksd from below. The former is the “rotary axis Ij attached to the plate W on the upper part of the door”. The latter is an L-shaped rotating body J that rotates about the axis A, and the latter is an arm A that rotates about the rotation axis Ia attached to the plate-attached W.

The rotating body J has two branches radiating in two directions at a substantially right angle with respect to the rotation axis Ij. A wheel Bj moving on the lower surface of the sliding surface K is attached to one branch, and the other branch is pulled. The fulcrum Sj of the spring V is attached. The rotator J rotates at the sliding surface ends Kr and Kl to change the direction in the same manner as the rotator in FIG. 35, and moves the fulcrum Sj of the spring above or below the straight line X connecting the rotation axis Ij and the rotation axis Ia. .

The wheel at the tip of the arm A presses the slope upper surface Ksa or the lower surface Ksd and moves the slope downward or upward. Just before the door shown in FIG. 35 (a) closes toward the door contact Ng, the door falls from the top surface of the slope as shown in FIG. 35 (b). From the closed state of FIG. 35 (c) to the slightly opened state of FIG. 35 (d), the spring V remains loose even if the door moves or the wheel goes under the slope. is there. FIG. 35D shows a direction in which the door further moves, the rotating body J rotates and the spring V is extended, the wheel Ba at the tip of the arm A presses the slope lower surface Ksd from below, and the door hits away from Ng. Shows the state of moving.

When the door is not fully opened as shown in FIG. 35 (e), the wheel Ba on the lower surface of the slope pushes the check valve Gr installed at the end of the slope and rides on the upper surface of the slope as shown in 35 (f). , Will not return to the bottom. FIG. 35 (g) shows a state in which the wheel Ba pushes the slope upper surface Ksa from above and the door moves toward the door stop.

Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Illustration of the action of the pulling spring linked to the link Top view of the door that opens just before closing Top view of a door that does not close in the wind Top view of a door that can be opened from outside and does not close with wind Top view of a door that decelerates just before closing Top view of a spring that does not shrink in an instant Plan view of reduction gear by domino effect Plan view of speed reducer with multiple domino effects Top view of reversing magnet catch Top view of a door that uses inertial force for deceleration Top view of the door that stops once just before closing Plan view to hold down strongly against the door Top view of revolving door to prevent accidents Top view of a revolving door that can be retracted in the opening direction just before closing Top view of a revolving door that can be retracted in the opening direction just before closing Top view of a door that closes from the middle and opens from the middle Top view of the door that opens fully when opened slightly and closes when closed slightly Top view of opening door actuator Top view of an open door that moves with a single gear Top view of an open door that moves with two gears Top view of an open door that rotates 180 degrees Top view of an open door that moves with an arm Top view of an open door that rotates 180 degrees Top view of an open door that moves with an arm Top view of an open door that moves with wheels moving on the running surface Elevated view of an open sliding door that moves with an arm Elevated view of an open sliding door that moves with wheels moving on the sliding surface

A Plate or arm B Wheel C Door-arm connection shaft D Door E Contact F Branch G Per H Bolt I Rotating shaft J Rotating body K Running surface L Length M Spiral wheel N Door frame O Door rotating shaft P Link connection Axis Q Plate rotation axis
R Arc S Fixed point of spring end T Normal U Push spring V Pull spring W Plate
X Wheel direction
Y Y-axis Z Brake shoe

Claims (4)

A door D of the Ru is rotatably supported about a rotation shaft Id provided in the plate W to rotate the pivot O in the axial, the door D is the rotary shaft Id is within a predetermined rotation range of the door D was the axis rotation ready, the rotation range releasable locking means to a non-rotatable state outside the Gl, Gr, includes a B, the locking means Gl, Gr, B is the door D is A revolving door that is attached to the plate W so as to be movable between a restraint releasing position that is rotatable about the rotation support shaft Id and a restraining position that is not rotatable.
The locking means Gl, Gr, B are movable to the restraint release position within the rotation range, and are fixed at the restraint position outside the rotation range, thereby fixing the door D to the plate W. A revolving door comprising a releasable restraining means. The locking means is in a restrained position of the plate W that presses a portion of the door D that is different from the rotation support shaft Id outside the rotation range, and the door D cannot rotate about the rotation support shaft Id. A revolving door that can move to the restraint release position of the plate W that does not press the different parts within the rotation range, and that allows the door D to rotate about the rotation support shaft Id ,
Alternatively, outside the rotation range, the door D is in a restraining position of the plate W that contacts a side surface of a portion different from the rotation support shaft Id, and the door D is made unrotatable about the rotation support shaft Id. In the rotation range, the rotation is provided with the locking means that is movable to the restraint releasing position of the plate W that is separated from the side surface, and that allows the door D to rotate about the rotation support shaft Id. A door,
The locking means moves along the outer edge K of the fixed disk with the pivot O as the center while pressing the different part outside the rotation range or abutting against the side surface, and the pivot O is the center. The locking means is restrained at the restraining position of the plate W to fix the door D to the plate W by
The locking means can be moved to a restraint releasing position of the plate W so that the locking means can be retracted into a recess Kk provided in the outer edge K within the rotation range, and the door D is rotated. The revolving door according to claim 1, further comprising releasable restraining means for allowing the support shaft Id to rotate about the shaft. The locking means retracted in the depression Kk does not escape from the depression Kk, but stops at the fitting portion KKK provided at the end of the depression Kk, thereby rotating the plate W about the pivot axis O. The revolving door according to claim 1, wherein the revolving door is stopped. The door is provided with a sliding surface Kdd in the radial direction of a circle centered on the pivot axis O, and when the locking means moves from the restraining position of the plate W toward the restraining release position, the sliding surface Kdd is provided on the sliding surface Kdd. The revolving door according to any one of claims 1 to 3, wherein the door D is rotated about the rotation support shaft Id while moving along the axis.

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