JP3161387U - Sliding door braking device - Google Patents

Abstract

An object of the present invention is to provide a simple structure that can automatically adjust the relationship between a sliding door body and a suspended vehicle, while maintaining the normal posture of the suspended vehicle at all times and reducing the traveling speed before the door-closed position, so that it can be performed safely and smoothly. Provided is a sliding door braking device configured to open and close the sliding door. The present invention comprises a braking piece and braking means. The brake piece is fixed to the top plate surface before the door closing position of the guide rail provided at the upper part of the sliding door installation location, and the lower surface is steeply inclined on the front side in the door closing direction and has a gentle open slope toward the door closing side. The braking operation surface. The braking means includes a lever-like arm whose base end is pivotally supported on the upper side of the traveling base of the sliding door suspension vehicle and whose tip is pushed up by the biasing means, and the top plate of the guide rail supported by the tip of the arm. It consists of a braking detector that moves in contact with the surface. When the arm is pushed down when the door is closed, a braking force is applied to the suspension vehicle via the biasing means. [Selection] Figure 7

Description

  The present invention is a braking system for a sliding door that has a function that allows the door to be closed quietly by running quietly when opening and closing the sliding door provided at the entrance of a building, etc., and keeping the door closed without being affected by wind. It relates to the device.

  The sliding door provided at the entrance of the building is a fixture provided at the top of the door body with the lower end of the suspension shaft connected to the suspension car that runs along the guide rails arranged mainly at the upper part of the entrance of the building. The door body is suspended by connecting. In this way, the sliding door that can be opened and closed by being suspended by a suspension car can open and close smoothly, but if it closes vigorously, not only does the sliding door collide with the side of the vertical member (column) of the three-sided frame, but it also generates noise, When the door is closed, a part of the body, for example, a finger may be sandwiched between the end face of the door and the building-side vertical member. In addition, the sliding door may rebound due to the reaction of the collision between the side surface of the vertical member and the sliding door.

  Therefore, an attempt has been proposed to apply a braking force so that the inertia caused by traveling is restricted at a position immediately before closing so as to prevent a collision phenomenon due to the inertia generated when the sliding door is closed. Many proposals have already been made on the means for braking the running of the door. For example, in what is disclosed by Patent Document 1, on a flat top surface (upper surface) on the inner side of a guide rail (a rail having a box-shaped cross section having a lower side opened in a slit shape) attached to a building as a braking device for a sliding door, The suspension is attached so that the brake-applying member protrudes downward at the location before the door-closed position. On the other hand, for suspension vehicles (runners) that travel with the sliding doors suspended, braking is performed at a position away from the roller placement part in the traveling direction. The case is provided integrally with the runner base, and when it comes into contact with the braking member, it slides in the braking case to generate a braking force, decelerates and falls over when the door is closed, and is controlled when the door opens. The thing of the structure which attaches the brake piece which operate | moves so that power may be released is disclosed.

  In addition to this, an elongated brake piece is attached to the top position of the guide rail (the guide groove of the Kamoi) in the running direction so that the braking force acts on the runner on the sliding door side in contact with the brake piece. For example, Patent Document 2 discloses a configuration in which either one includes a contact member that sandwiches the other part from both sides. Alternatively, a resistor (elastic material or roller) is provided on the guide rail side so that the braking force can be obtained by contacting the brake member with the guide rail attached to the sliding door side, and acts before the door closes. Patent Documents 3 and 4 and the like are known to be configured so as to brake.

  However, in the prior art, for example, in the technique known from Patent Document 1, it looks reasonable at first glance, but the structure required to lie down so that the brake piece attached to the runner does not operate when opening the door is complicated. In addition, since the braking part piece and the braking application member function by rubbing each other, it is difficult to adjust the braking force, and since braking is caused by rubbing, there is a problem that the smoothness is not good in long-term use. is there.

  Moreover, in the prior art known by patent document 2, the elongate brake part piece is attached to the guide groove of the Kamoi in a running direction, and the contact member which obtains a braking force so that the said brake part piece may be pinched | interposed into the runner on the sliding door side is provided (There is also an inverse structure of this system) The sliding part is easily worn by opening and closing the sliding door at all times. For this reason, when the braking force decreases, the contact state of the abutting member with respect to the braking part piece is adjusted. In order to adjust, it is necessary to disassemble and adjust the braking device. In some cases, parts must be replaced. Therefore, there is a problem that it is very inconvenient in handling.

  Moreover, in what is known from Patent Documents 3 and 4 and the like, there is disclosed a structure in which a braking member is attached to the rail side and a member to which resistance is given by contact with the braking member is provided on the sliding door side. However, in these prior arts, a roller that rotates horizontally is used as a member provided on the sliding door side. In this method, when the resistance increases, the roller escapes in the opposite direction to the braking member. However, since a clearance is generally provided in the width direction with respect to the traveling direction for the convenience of traveling, a phenomenon occurs in which the moving sliding door swings laterally with respect to the traveling direction. Therefore, this type of configuration has a problem that a large amount of rattling occurs with long-term use, and vibration and noise are generated when wind is received with the door closed.

Japanese Patent No. 3961531 JP-A-9-317318 JP 2001-303849 A JP 2004-116146 A

  The present invention has been made to solve the above-mentioned problems, and with a simple structure, the suspension vehicle can always be in a normal posture in a state where the relationship between the sliding door body and the suspension vehicle can be automatically adjusted. An object of the present invention is to provide a sliding door braking device that is configured to reduce the traveling speed before the door closing position while maintaining it and to open and close the sliding door safely and smoothly.

In order to achieve the above object, the sliding door braking device of the present invention comprises:
Braking that is fixed on the top plate surface just before the door closing position of the guide rail provided at the upper part of the sliding door installation of the building, and the lower surface is steeply inclined on the front side in the door closing direction and has a gentle open slope toward the door closing side A braking piece on the operating surface;
A lever-like arm whose base end is pivotally supported above the traveling base of the sliding door suspension and whose tip is pushed up by the urging means, and is supported by the tip of the arm and in contact with the top plate surface of the guide rail. A braking means comprising a moving braking detector,
When the door is closed, when the brake detection body of the braking means comes into contact with the steeply inclined surface of the braking part piece and climbs over the top and the arm is pushed down, the braking force acts on the suspension vehicle via the biasing means. It is characterized by this.

  In the above device, the brake detection body supported by the tip of the arm is a roller, and this roller is supported at the tip of the arm by a support shaft provided in the extending direction of the arm so as to be rotatable. It is preferable that two brackets are arranged parallel to the width direction so as to be able to rotate and move in contact with the top plate surface of the guide rail.

  Further, in the above device, the arm is fitted to a spring receiving hole provided on a lower surface near the base end portion and an upper portion of a suspension shaft support hole formed through the center of the traveling base body in the vertical direction. It is preferable that the roller attached to the distal end is in contact with the top plate surface of the guide rail by being pushed up by the urging means with the base end pivot shaft as a fulcrum.

  Further, the arm is an adjustment member that can be adjusted in the height direction with respect to the traveling base of the suspension vehicle at a position appropriately separated from the position of the compression spring as the biasing means toward the tip side. Is preferably configured to be settable. Furthermore, the suspension shaft support hole provided in the center of the traveling base of the suspension vehicle has a structure in which a spherical seat that can swing the head of the suspension shaft is supported. Good.

  According to the present invention, on the top surface of the guide rail, the brake detector attached to the tip of the lever-like arm on which the lifting force is constantly urged is placed on the upper side of the suspension wheel that runs along the guide surface of the guide rail. When the suspension vehicle moves to the position by the brake piece attached to the top plate surface of the guide rail at the position before the door closes so that the vehicle can follow the contact, the brake detection body comes into contact with the brake piece. The movement is braked rapidly, and after the maximum braking force is applied, it is moved slowly to the door closing position, and the inertia due to traveling is eliminated without difficulty. It is possible to safely and reliably avoid the occurrence of noise such as collision noise and the danger of clogging fingers.

  In addition, by constantly applying a push-up force to the braking detection body in contact with the top surface (inner upper surface) of the guide rail, the reaction force is applied to the wheel (roller) of the suspension vehicle. In addition, it is possible to prevent the floating and wobbling during the movement of the suspension vehicle, and to obtain the effect that the sliding door can be opened and closed stably and smoothly. In addition, the brake piece attached to the guide rail side has a gentle slope on the sliding door closing side, so that the door will naturally open in the closing direction under the influence of wind etc. after closing the door. It has the effect that the pull back function is exhibited.

FIG. 1 is an overall view of an embodiment of a sliding door provided with a control device according to the present invention. FIG. 2: is the front view (a) and AA view (b) which show one Embodiment of the suspension vehicle provided with the control apparatus of a sliding door. FIG. 3 is a longitudinal sectional view (a) and a transverse sectional view (b) showing how the braking member is attached to the guide rail. FIG. 4 is a view showing a braking piece, and shows a plane (a), a side (b), a longitudinal section (c) along the center line, a bottom and an aa section (d). FIG. 5 is a front view (a), a plan view (b), and a right side view (c) of the suspension vehicle. FIG. 6 is a longitudinal sectional view (a), an AA sectional view (b), a BB sectional view (c) and a CC sectional view (d) of the suspension wheel. FIG. 7 shows an operation mode of the suspension vehicle provided with the operation unit of the braking device according to the present invention, and is a sectional view (a) showing a mode immediately before braking and a diagram (b) showing a mode at the time of braking operation. FIG. 8 is a diagram illustrating the operation mode of the braking device in order.

  Next, a specific embodiment of the sliding door braking device according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the sliding door braking device 1 of this embodiment is suspended and supported by a suspension car 10 that is guided and moved by a guide rail 3 that is mounted along the upper arm 2 of the upper part of the entrance A1 of the building A. Braking means 30 attached to the suspension vehicle 10 provided at at least two locations above the sliding door 6 which is guided and guided to open and close by the lower part, and the top plate surface of the guide rail 3 And a brake piece 40 which is attached to 3b and applies a braking force to the braking means 30.

  As shown in FIGS. 2A and 2B (FIGS. 3A and 3B), the guide rail 3 has an opening 3d having a required width dimension on the lower surface, and both sides of the opening 3d. The box-shaped horizontal protrusions 3e and 3e are formed in a box-shaped cross section so as to face each other toward the center line a. And the upper surface of the said horizontal protrusion part 3e is formed in cross-sectional concave shape, and forms the roller guide surfaces 3a and 3a of the suspension vehicle 10. As shown in FIG. Further, the top plate surface 3b (inner top surface) of the box-shaped guide rail 3 is provided with a groove 3f having an appropriate width in the center portion and is flattened on both sides thereof. It has become.

  The suspension vehicle 10 includes a suspension vehicle main body 11 (corresponding to the “traveling base” of the present invention) that is movable along the guide rail 3 and a braking means attached to the upper side of the suspension vehicle main body 11. 30. The main body 11 of the suspension vehicle 10 is formed of metal or resin, and as shown in FIGS. 5 and 6, has a rectangular shape with a required thickness and includes a cylindrical boss 12 in the center in the vertical axis direction. A suspending shaft insertion hole 16 is provided at the center of the boss portion 12, and a shaft hole 13 penetrating in the horizontal direction at the front and rear positions of the boss portion 12 is provided. The rollers 15 are rotatably arranged on both sides of the main body 11 by the support shafts 14 arranged in this manner. Further, the rollers 15 arranged on the left and right sides are supported so as to coincide with the spacing dimension guided along the guide grooves 3a, 3a of the guide rail 3. In the following description, for convenience of explanation, the direction of traveling along the guide rail 3 is referred to as “front-rear direction”, and the direction intersecting the traveling direction of the guide rail 3 is referred to as “width direction (also referred to as left-right direction)”. Called.

  The boss portion 12 of the main body portion 11 is provided with a suspension shaft support hole 16 penetrating in the vertical direction at the center, and the head portion 21 of the suspension shaft 20 is formed in the lower portion of the suspension shaft support hole 16. A hemispherical seat 16a for receiving the peripheral surface 22 is formed. Also, a shaft pin hole 16c is provided in the center of the boss portion 12 so as to penetrate the shaft shaft hole 16c in the width direction perpendicular to the axis of the suspension shaft support hole 16, and the shaft pin 17 is inserted into the shaft pin hole 16c. Thus, the head portion 21 of the suspension shaft 20 is prevented from floating. The suspension shaft support hole 16 is formed in an elliptical shape with the lower end portion 16b being a long axis in the lateral direction.

  As shown in FIGS. 6A and 6B, the suspension shaft 20 has a required length dimension and a peripheral surface 22 of the upper end head portion 21 is formed in a hemispherical shape and is connected to the shaft portion 20a. The upper surface 23 (end surface) of the part 21 is formed in a flat cone shape with a wide angle centered on the axis. A threaded portion 24 is formed at the lower end of the suspension shaft 20 and is connected to a sliding door height adjusting mechanism 51 that is provided in an attachment unit 50 that is attached to the sliding door and adjusts the size in the vertical direction. In the assembled state, the suspension shaft 20 is not separated when removed because the top surface 23 of the head portion 21 is prevented from being pulled out by the shaft pin 17 as described above. Further, since the top surface 23 of the suspension shaft 20 is formed in a flat conical shape, even if the swinging operation is performed when the sliding door 6 is supported to be suspended, the swinging motion is prevented from coming into contact with the shaft pin 17. There is no.

  On the other hand, the braking means 30 includes an arm 31 that is pivotally attached to the bracket 18 having the base end portion fixed upright on the upper surface of the end portion of the suspension main body 11 by the shaft pin 32 and disposed in the front-rear direction. A brake roller 33 (corresponding to the “brake detector” of the present invention) that is rotatably supported at the tip of 31 and provided in the width direction, and a suspension vehicle body 11 near the base end of the arm 31. A compression spring 35 (corresponding to the “biasing means” of the present invention) that urges the suspension shaft from the suspension shaft support hole 16 in the push-up direction. The arm 31 has a length longer than that of the suspension vehicle body 11, and the braking roller 33 is pivotally supported by a shaft 31a extending in the front-rear direction at the tip of the arm 31. It is rotatably attached at both end portions of a roller shaft 34a that penetrates the bracket 34 from side to side and is supported, abuts on the top plate surface 3b inside the guide rail 3, and is rotatable by the traveling of the suspension vehicle 10. It is attached.

  Further, the braking means 30 has a position in which the arm 31 forms a bulge at a position facing the boss portion 12 of the suspended vehicle body portion 11 near the base portion, and faces the suspension shaft support hole 16 on the lower surface thereof. Thus, a receiving hole 31b of the compression spring 35 is formed. Then, a stepped hole 31c is formed in the vertical direction at a position appropriately separated from the compression spring receiving hole 31b in the distal direction, and an adjustment screw 36 made of a hexagon socket bolt inserted through the stepped hole 31c is suspended. A screw 36 is screwed into an adjustment hole (screw hole) formed in the vehicle body 11 to prevent the nut 36a from coming off, and the adjustment screw 36 is turned by loosening the nut 36a. The height of the arm 31 can be adjusted at the height of the height. The compression spring 35 is received in the suspension shaft support hole 16 and the compression spring receiving hole 31b as described above, and is held so as not to come out, constantly urging the arm 31 in the upward direction, and the adjusting screw. The maximum push-up amount of the arm 31 is set by 36, and the contact state between the braking roller 33 and the guide rail top plate surface 3b is appropriately maintained.

  As shown in FIG. 8 (a), a brake piece 40 is attached to the suspension wheel 10 at a position away from the door closing end by a required dimension in front of the end portion of the guide rail 3. The braking part piece 40 is formed so that a high peak part is formed in the closing direction of the sliding door 6, and the peak part 42 a is formed into a steep braking inclined surface 42 b, and is appropriately extended from the peak part 42 a to the rail end direction. This is a flat piece of the braking surface 42 formed with a gentle downward slope 42c (see FIG. 4). And this braking part piece 40 is fitted to the groove 3f carved in the top plate surface 3b of the guide rail 3 with the projecting surface forming part 43a formed along the center line of the flat back surface part, and is applied with a sloped braking. The projecting surface forming portion 43a of the back surface portion 43 is embedded in the groove 3f in the traveling direction with the surface 42 facing downward, and is fixed by a countersunk machine screw 45. Note that the mounting countersunk machine screw 45 has a groove 44 so that its head is not exposed to the braking surface 42 and is positioned inside. Further, since the braking piece 40 is attached by fitting the projecting surface forming portion 43a formed on the back surface portion 43 into the groove 3f provided on the top plate surface of the guide rail 3, it can be stably fixed without lateral displacement. it can.

  Next, the operation | movement aspect of the sliding door provided with the braking device of this embodiment is demonstrated with reference to drawings shown in FIGS.

  In this embodiment, the arm 31 of the braking means 30 disposed on the upper side of the suspension vehicle 10 with the sliding door 6 being opened is pushed up by the compression spring 35, and the braking roller 33 supported by the tip portion is moved to the guide rail 3. It is kept in contact with the top plate surface 3b. In this state, the braking roller 33 moves along the top surface 3 b of the guide rail 3 following the traveling of the suspension vehicle 10, and the reaction force acting on the braking roller 33 is coupled to the suspension vehicle body 11 via the arm 31. The sliding door 6 can be opened and closed easily by moving on the guide surfaces 3a and 3a of the guide rail 3 without being overloaded by the pressing force transmitted to the rollers 15 and 15 and being transmitted to the rollers 15 and 15.

  When the door closing operation is performed, the braking means 30 that moves together with the suspension vehicle 10 on the braking inclined surface 42b of the braking piece 40 that is previously attached to the guide rail 3 when moved to a position before the closing position (for example, a position that is about 10 cm away). The braking roller 33 comes into contact (see FIG. 8B and FIG. 7A). Then, the braking roller 33 rides on the braking inclined surface 42b due to inertia during traveling, and the arm 31 is pushed downward with the pivot point (the shaft pin 32) as a base point (see FIG. 7B or FIG. 8B). ). When this arm 31 is pushed down, it engages with the receiving hole 31b near the base end by lever action caused by a slight downward displacement due to the contact between the braking roller 33 and the braking piece 40 at the tip of the arm 31. The compression spring 35 is compressed, and a large braking force is applied to the four rollers 15 attached to the suspension vehicle body 11. As a result, the inertial force due to the door closing rapidly disappears and is decelerated.

  Eventually, when the braking roller 33 passes the peak portion 42a of the braking portion piece 40, the braking roller piece 40 shifts to a gentle downward slope (braking surface 42c) (see FIG. 8D), and thus acts on the arm 31. Thus, the pushing force is gradually reduced, the force applied to the compression spring 35 is lowered, and the braking force is gradually removed. Accordingly, the sliding door 6 can be operated without applying a large external force. In short, even if the sliding door 6 is moved quickly during the door closing operation, the braking force is automatically activated when reaching a little before the door closing position, and the door can be closed in a decelerating state, and fingers and the like are pinched when the door is closed. Such a danger can be avoided reliably. The arm 31 is restored by the compression spring 35 because the pushing-down action force on the braking roller 33 is released at the closed position.

  Further, as described above, the suspension vehicle 10 is configured so that the braking roller 33 of the attached braking means 30 reaches the door closing position beyond the braking surface 42 of the braking portion 40 attached to the guide rail 3. For example, after the door is closed, even if the door naturally opens due to an external force such as wind, the movement of the brake roller 33 is restricted by the brake piece 40, and the function of preventing the door from being opened can be obtained. . Therefore, it is more effective when used for the sliding door 6 provided at the entrance A1 of the building A in a cold district or the like.

  Furthermore, even if there is a place where the top plate surface 3b is not horizontal due to a deviation occurring in the guide rail 3, the braking roller 33 in the braking means 30 has the arm 31 mounted on the suspension body 10 of the suspension vehicle 10 on the bracket 18. Through a bracket 34 that is pivotally supported on a support shaft 31a that is pivotally supported on the support shaft 31a that is axially extended at the distal end portion of the arm 31 even if the position of the suspension vehicle 10 is displaced. Since the shaft is supported on both sides (see FIG. 6 (c)), the arm 31 is kept in contact with the top plate surface 3b of the guide rail 3 and the arm 31 is maintained in a steady state. It can move without giving an irregular load.

  When the sliding door 6 is opened, the operation is reverse to that performed when the door is closed. However, at the initial stage of moving the door in the opening direction, the braking surface 42c is a gentle slope of the braking piece 40. Therefore, since the brake roller 33 can be moved without suddenly applying a large load, the brake roller 33 can be opened without hindering operation.

  In this embodiment, since the arm 31 is provided with a mechanism that can adjust the lifting amount of the arm 31 by the adjusting screw 36, the arm 31 cannot be lifted excessively by the elastic force of the compression spring 35. Therefore, the operation of incorporating into the guide rail 3 can be easily performed.

  In the above description, a mode is described in which a roller is used as a braking detection body in the braking means attached to the suspension vehicle. However, the present invention is not limited to this. A sliding piece such as a leaf spring formed on a curved surface that is in sliding contact with the surface may be used. The biasing means may be a small damper in which a pressure fluid is sealed in addition to the coil spring.

DESCRIPTION OF SYMBOLS 1 Sliding door braking device 2 Upper rod 3 Guide rail 3a Roller guide groove 6 Sliding door 6a Top part of sliding door 10 Suspension car 11 Suspension car body part 12 Boss part 15 Roller 16 Suspension shaft support hole 16a Receiving seat 17, 32 Axle pin 18 Bracket DESCRIPTION OF SYMBOLS 20 Suspension shaft 21 Head part 30 Braking means 31 Arm 31a Support shaft 33 Braking roller 34 Bracket 35 Compression spring 40 Braking part piece 42 Braking surface

Claims (5)

Braking that is fixed on the top plate surface just before the door closing position of the guide rail provided at the upper part of the sliding door installation of the building, and the lower surface is steeply inclined on the front side in the door closing direction and has a gentle open slope toward the door closing side A braking piece on the operating surface;
A lever-like arm whose base end is pivotally supported above the traveling base of the sliding door suspension and whose tip is pushed up by the urging means, and is supported by the tip of the arm and in contact with the top plate surface of the guide rail. A braking means comprising a moving braking detector,
When the door is closed, when the brake detection body of the braking means comes into contact with the steeply inclined surface of the braking part piece and climbs over the top and the arm is pushed down, the braking force acts on the suspension vehicle via the biasing means. A sliding door braking device characterized by that.   The brake detection body supported by the tip of the arm is a roller, and this roller is a bracket supported rotatably at the tip of the arm by a support shaft provided in the extension direction of the arm. The sliding door braking device according to claim 1, wherein two sliding doors are arranged in parallel to each other and are provided so as to be able to rotate and move in contact with a top plate surface of the guide rail.   The arm is pivoted by a biasing means fitted into a spring receiving hole provided on a lower surface near the base end and an upper part of a suspension shaft support hole formed vertically through the center of the traveling base. The sliding door braking device according to claim 1, wherein the roller attached to the distal end is abutted against the top plate surface of the guide rail when pushed up with the support shaft as a fulcrum.   The arm is an adjustment member that can be adjusted in the height direction with respect to the traveling base of the hoisting wheel at a position that is appropriately separated from the position of the compression spring as the biasing means toward the tip side. The sliding door braking device according to claim 1 or 3, wherein the braking device is configured to be possible.   The suspension shaft support hole provided at the center of the traveling base of the suspension vehicle has a structure in which a spherical seat capable of swingably supporting the head of the suspension shaft is provided therein. A sliding door brake device according to claim 1.

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