JP7257253B2 - Door opening/closing control mechanism - Google Patents

Description

The present invention relates to an opening/closing control mechanism for a door body (door body) such as an entrance door.

As a door of various buildings such as apartments and general houses, it is provided on the hanging side of the door body (door bottom side of the door body), and the door body is attached to the door frame (door frame) around the axis extending in the vertical direction using hinges. A hinged door that is rotatably attached to the door and opens and closes the opening is often used.

On the other hand, in a door that opens and closes with a hinge, the door body closes suddenly, generating a loud impact sound, and in some cases, causing injury to the user. A door closer is connected to a structure such as a wall to prevent the door body from suddenly closing. However, this type of door closer has a problem of being unattractive because it is largely exposed on the upper side of the door body.

On the other hand, Patent Document 1 discloses that "a cam bush that can move up and down and a compression coil spring that applies a downward biasing force to the cam bush are provided in the shaft cylinder of the hinge, and the door body and thus the hinge are opened. When the cam pin is the fulcrum, the compression coil spring is urged downward by the cam bush and compressed. A hinge provided with an automatic opening/closing mechanism (a closing mechanism, a door body opening/closing control mechanism) that is in a closed state for closing movement." is disclosed.

Patent Document 2 describes a hinge-type door equipped with a spring mechanism that generates a self-closing force for closing an opened door and a hydraulic mechanism that generates a braking force against the self-closing force when the door is closed. Back check means consisting of a spring member such as a disk spring or a compression coil spring is attached to the upper part of the cylinder in which the piston of the hydraulic mechanism connected to the door side hinge moves according to the opening and closing operation, and the door is closed. A hinged door closer with an opening angle limit (closing mechanism, door body) is provided with a stop means that stops the moving movement when the piston hits when the door is opened to the maximum allowable opening angle. Hinges with opening and closing control mechanism)." is disclosed.

Further, the inventor of the present application has invented a door having a hinge with a built-in closing mechanism that controls the opening and closing of the door body by the balance between the restoring force of the spring and the opening and closing speed adjusting force of the door body by hydraulic pressure. The applicant has already filed a patent application for this invention (Japanese Patent Application No. 2018-065811).

In the hinges disclosed in Patent Document 1, Patent Document 2, and Japanese Patent Application No. 2018-065811, the closing mechanism can prevent the door body from suddenly closing, and by incorporating the closing mechanism into the hinge, It is possible to prevent the appearance from becoming bad.

Also, by incorporating the closing mechanism into the hinge in this way, it becomes possible to effectively utilize the installation position of the conventional door closer. For example, by eliminating door closers, it becomes possible to separately install lighting, air curtains, roll screens, and the like.

JP 2011-094445 A JP-A-08-093313

Here, for example, in the hinge (door) provided with the closing mechanism by the inventor of the present application, the internal cylinder performs a piston movement with a stroke of 9 mm when opening and closing, and along with this, the oil flow rate is controlled to control the door. It is configured to adjust the speed at which the body closes.

In the control by the closing mechanism that adjusts the closing motion speed (opening/closing motion speed) of the door body, for example, as shown in FIG. , the closing mechanism functions at 80 to 0 degrees, and between 100 and 80 degrees, the closing function does not work due to the balance between the restoring force of the spring and the opening and closing speed adjustment force of the door body by hydraulic pressure. It becomes a free section that does not work.

For this reason, in the 100 to 80° free section, the door body 100 may open without permission due to the wind, for example, because the stop does not work. In addition, when the door body 100 is blown by a strong wind, the door body 100 may open violently, causing an accident in which a user or the like is caught, or the door body 100 may collide with the door body 100 to generate a loud impact sound or damage the product or parts.・There is a risk that defects such as deformation may occur, and there is room for improvement in this respect.

One aspect of the door body opening/closing control mechanism of the present invention is a mechanism for controlling the opening/closing movement of the door body provided rotatably about an axis extending in the vertical direction on the door bottom side, wherein the door body is provided in a predetermined manner. and a closing mechanism of a first opening/closing control mechanism that adjusts the closing speed of the door body within the opening range of , and controls the opening and closing motion of the door body within an opening range other than the predetermined opening range of the door body. and a shock absorbing mechanism of the second opening/closing control mechanism.

It is a front view which shows the door which concerns on one Embodiment. FIG. 2 is a view taken along line X1-X1 in FIG. 1; It is a front view which shows the opening-and-closing control mechanism and hinge of a door which concern on one Embodiment. It is a perspective view which shows the opening-and-closing control mechanism of a door and a hinge which concern on one Embodiment. It is an exploded perspective view showing an opening-and-closing control mechanism and a hinge of a door concerning one embodiment. It is a front view which shows the opening-and-closing control mechanism of the door body which concerns on one Embodiment. It is a figure which shows the operation|movement and function according to the opening degree of the door body of the opening-and-closing control mechanism of the door body which concerns on one Embodiment. FIG. 4 is a front view showing a state in which the opening/closing control mechanism for the door body according to the embodiment is covered with a cover member; FIG. 10 is a diagram showing the functions of a door body opening/closing control mechanism that includes only a conventional closing mechanism.

Hereinafter, a door body opening/closing control mechanism according to one embodiment will be described with reference to FIGS. 1 to 8. FIG.

Here, the present embodiment relates to a mechanism for controlling a door body that is rotatably supported by a hinge attached to a door bottom, for example, and that opens and closes an opening formed in a building. In this embodiment, the door body according to the present invention is described as a door body (door) that opens and closes an opening of a building such as an entrance door. Of course, it can also be applied to control the opening and closing of other door bodies such as storage/closet doors and gates of exterior structures.

For example, as shown in FIGS. 1 and 2, the door 1 of the present embodiment includes a door frame 2 attached to a peripheral edge forming an opening H of a building, and a door body (door body) for opening and closing the opening. 3, and a hinge 4 that connects the door bottom of the door body 3 to the door frame 2 so as to be rotatable around an axis O1 extending in the vertical direction T1, and supports the door body 3 so that the door body 3 can be opened and closed. .

The door frame 2 includes a suspension-side vertical frame (door bottom-side vertical frame) 5 having a hollow structure, a door tip-side vertical frame 6, and upper ends of the suspension-side vertical frame 5 and the door tip-side vertical frame 6. and upper and lower horizontal frames 14 arranged so as to connect the lower end portions to each other. In addition, the door frame 2 may be composed of the vertical frames 5 and 6 only.

The door body 3 includes a pair of left and right vertical core members 7, a pair of upper and lower horizontal core members 9 and 10 connecting the upper and lower ends of the pair of vertical core members 7 and 8, respectively, and the pair of left and right vertical cores. It is connected and fixed to the members 7, 8 and a pair of upper and lower horizontal core members 9, 10, arranged so as to sandwich the vertical core members 7, 8 and the horizontal core members 9, 10, and forms the front and back surfaces of the door body 3. It is arranged so as to fill an internal space surrounded by an inner side plate 11 and an outer side plate 12, a pair of left and right vertical core members 7 and 8, a pair of upper and lower horizontal core members 9 and 10, an inner side plate 11 and an outer side plate 12. and a heat insulating material 13.

Further, the door body 3 of the present embodiment is formed by incorporating a vertically elongated double glazing 34 on the hanger side and a horizontally long double glazing 35 on the top for daylighting. The vertically long double glazing 34 is provided between the vertical core member 7 on the hanger side and an auxiliary vertical core member 36 arranged parallel to the vertical core member 7 . A horizontally long double glazing 35 is provided between the upper horizontal core member 9 and an auxiliary horizontal core member 37 arranged parallel to the horizontal core member 9 .
Note that the door body 3 does not necessarily have to be configured as described above.

The hinge 4, as shown in FIGS. It is configured to include an upper cylinder portion 17 in which the shaft 15 is fitted and which is rotatably arranged around the axis (axis center) O1.

The lower tubular portion 16 is integrally provided with a mounting portion 18 that protrudes toward the suspension-side vertical frame 5 and is connected to the suspension-side vertical frame 5 .

An arm portion 19 having an L-shaped cross section is provided integrally with the upper cylindrical portion 17 , and a horizontal adjustment member 20 is attached to the arm portion 19 .

The hinge 4 of the present embodiment connects the mounting portion 18 of the lower tubular portion 16 to the hanging side vertical frame 5 of the door frame 2 via the horizontal adjustment member 20 and the bracket 21, and the arm portion 19 of the upper tubular portion 17. is connected to the vertical core member 7 of the door body 3 via a bracket 22 to support the door body 3 so that it can be opened and closed.

The hinge 4 of this embodiment is attached to the suspension-side vertical frame 5 so that the shaft 15 of the hinge 4 is positioned inside the suspension-side vertical frame 5 . The upper tubular portion 17 and the lower tubular portion 16 of the hinge 4 partially protrude outward if the shaft 15 (axis center) of the hinge 4 is positioned inside the side surface of the suspension-side vertical frame 5 . Although it does not matter, it is preferable that it is housed inside the side surface of the suspension-side vertical frame 5 .

By the way, the door 1 of this embodiment can make the hinge 4 difficult to see by configuring the hinge 4 as described above, and can improve the design.

Further, by mounting the mounting portion 18 of the lower cylindrical portion 16 to the prospective surface of the vertical core member 7 of the door body 3 via the bracket 21, the vertical and horizontal position of the door body 3 can be adjusted with the door 1 open. When the door 1 is opened, installation adjustment becomes possible, and workability and maintainability can be improved.

Furthermore, by attaching the hinge 4 to the suspension side vertical frame 5 via the bracket 21, it becomes easier to realize a structure in which the hinge 4 is not visible due to the bracket 21 when the door 1 is closed, and the design is improved. can be improved.

On the other hand, the door 1 of the present embodiment is provided with an opening/closing control mechanism A for the door body 3 that exerts a closer function, a swing stop function, and a stop function according to the degree of opening of the door body 3 .

The opening/closing control mechanism A of the present embodiment is incorporated in the upper tubular portion 17 of the hinge 4, similar to the hinges of Patent Document 1, Patent Document 2, and Japanese Patent Application No. 2018-065811 described above, and the closing speed of the door body ( A closing mechanism (first opening/closing control mechanism) A1 that adjusts the opening/closing motion speed), and, for example, as shown in FIG. and an absorption mechanism (second opening/closing control mechanism) A2.

Further, the impact absorbing mechanism A2 of the present embodiment follows the rotation of the upper cylindrical portion 17 of the hinge 4 that rotates about the axis O1 extending in the vertical direction T1 according to the opening/closing operation of the door body 3, and moves in the direction of the axis O1. An advancing/retreating mechanism 26 having an advancing/retreating advancing/retreating member (rising member) 25 advances and retreats in the direction of the axis O1 and abuts on the advancing/retreating member 25 of the advancing/retreating mechanism 26, and pushes to suppress further advancing (advancing speed) of the advancing/retreating member 25. and an opening suppression mechanism 27 that suppresses the opening of the door body 3 by applying pressure (restoring force).

The advancing/retreating mechanism 26 has a substantially columnar or substantially cylindrical shape whose upper end is uneven in the direction of the axis O1. The lower end is formed in a substantially columnar or cylindrical shape with an uneven shape so as to fit (engage) with the uneven shape, and the advancing and retreating member 25 is coaxially disposed above the guide member 28, the guide member 28 and and a substantially cylindrical guide member 29 that encloses the advancing/retreating member 25 and guides the advancing/retreating member 25 in the vertical direction.

Further, the upper end portion of the guide member 28 and the lower end portion of the advancing/retreating member 25 that are fitted to each other move the advancing/retreating member 25 along the axis line O1 as the upper cylindrical portion 17 rotates about the axis line O1 according to the opening operation of the door body 3 . A guiding portion and a guided portion are formed so as to advance (raise) upward in the direction.

That is, when the door main body 3 is opened from the closed state and the upper tubular portion 17 of the hinge 4 rotates in one direction around the axis O1, the advancing/retreating mechanism 26 advances/retreats along the guiding portion of the guiding member 28 according to the amount of rotation. The guided portion of the member 25 slides, and the advance/retreat member 25 is guided by the guide member 29 and gradually advances upward in the direction of the axis O1.

Further, when the door body 3 is closed and rotated in the other direction around the axis O1, the advance/retreat member 25 gradually retreats downward in the direction of the axis O1, and the advance/retreat member 25 completely retreats to the upper end of the guide member 28. The lower end portion of the retractable member 25 is fitted.

On the other hand, the opening movement restraining mechanism 27 is a gas spring (elastic member), and includes, for example, a cylindrical cylinder 30 whose upper end is closed, a piston (not shown) disposed inside the cylinder 30, and an upper end of the piston. , and a piston rod 31 that protrudes downward in the direction of the axis O1 from the opening at the lower end of the cylinder 30, and a pressing member that is formed to have a larger diameter than the piston rod 31 and is coaxially and integrally provided at the lower end of the piston rod 31. It is composed of a plate (board) 32 and a compressed fluid such as gas or oil that is compressed when the piston moves rearward in the direction of the axis O1 to generate a reaction force.

The opening restraint mechanism 27 is arranged coaxially with the advancing/retreating mechanism 26, and includes a pressing plate 32 and the advancing/retreating mechanism 26 (in this embodiment, a magnet (adsorption member) 33 attached to the upper end portion of the advancing/retreating member 25 described later). ) with a predetermined gap between them.

Here, in the present embodiment, a magnet (adsorption member) 33 is attached to the upper end of the advance/retreat member 25 of the advance/retreat mechanism 26 , and abuts and adheres to the metal pressing plate 32 to hold the advance/retreat member 25 . is configured as That is, the magnet 33 constitutes an open/close holding mechanism for holding the door body 3 at the desired opening by being attracted to the pressing plate 32 when the desired opening is reached. The timing at which the magnet 33 and the pressing plate 32 attract each other is determined by the separation distance between the magnet 33 and the pressing plate 32 when the door body 3 is closed at an initial posture of 0°, which will be described later. is 80°, the magnet 33 is attracted to the pressing plate 32 .

An attraction position adjustment mechanism for adjusting the position of the magnet 33 is provided, and the separation distance between the magnet 33 and the pressing plate 32 (when the magnet 33 is attracted to the pressing plate 32 is The opening degree of the door body 3 (attraction timing) may be freely changed.

In the opening/closing control mechanism A of the present embodiment having the above configuration, as shown in FIG. At 80°, the closing mechanism A1 acts on the opening motion, so the door is opened up to 80° by manually applying an external force. In the range of 0° to 80°, the advancing/retracting member 25 of the shock absorbing mechanism A2 gradually advances upward, but the shock absorbing mechanism A2 does not act on the opening/closing motion.

Next, for example, when the opening degree of the door body 3 reaches 80°, the magnet 33 contacts and attracts the pressing plate 32 of the opening restraining mechanism 27 .

As a result, in the opening/closing control mechanism A of the present embodiment, the magnet 33 abuts and attracts the pressing plate 32 of the opening restraining mechanism 27, thereby holding the advancing/retreating member 25 and keeping the door body 3 at an opening degree of 80°. state can be maintained.

Next, when the opening degree of the door body 3 reaches 80 to 100°, the piston is gradually pushed in together with the pressing plate 32 and the piston rod 31 due to the advancement of the advancing/retreating member 25, and the pressing plate 32 of the opening restraining mechanism 27 pushes the piston. The pressing force acting on the advancing/retreating member 25 increases. As a result, the restraining force that restrains the opening movement of the advancing/retracting member 25 , the guiding member 28 , and the upper tubular portion 17 of the hinge 4 gradually increases.

Therefore, in the opening/closing control mechanism A of the present embodiment, the opening movement of the door body 3 can be restrained and controlled in the free section of 80 to 100 degrees where the closing mechanism A1 does not act conventionally (the tilt stopping function can be exerted). However, even if the wind or the like acts in this state of opening, the door body 3 may open without permission, or the door body 3 may open with great force, causing an accident in which a user or the like is caught in the door. It is possible to reliably eliminate the possibility that a collision of the main body 3 may cause a problem such as a large impact sound or breakage or deformation of the product or parts.

Furthermore, when the opening degree of the door body 3 is between 100 and 80 degrees, the pressing force (restoring force) acting on the advancing/retreating member 25 due to the reaction force from the pressing plate 32 of the opening suppression mechanism 27 acts. As the angle approaches °, the swing stop function becomes smaller.

Further, when the door body 3 reaches 80 degrees in the closing operation, the attraction force of the magnet 33 can hold the door body 3 at the opening degree of 80 degrees in the same manner as described above.

Next, when the angle falls between 80° and 0° due to the closing motion of the door body 3, the attracting force of the magnet 33 is cut off and the advance/retreat member 25 is released. The door body 3 can be closed under control.

Therefore, in the door body opening/closing control mechanism A of the present embodiment, by providing the closing mechanism A1 and the shock absorbing mechanism A2, the door body (door body) 3 can be suitably opened and closed within the full opening range. It is possible to realize a door that can be controlled, has excellent functionality, and is easy to use.

Although one embodiment of the door opening/closing control mechanism according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the scope of the invention.

For example, in the present embodiment, the advancing/retreating mechanism 26 of the shock absorbing mechanism A2 is composed of the guiding member 28, the advancing/retreating member 25, and the guide member 29. It is not necessary to limit the configuration to that of the present embodiment as long as it is provided with an advancing/retreating member that moves forward and backward in the vertical direction T1 following the movement.

Further, in the present embodiment, the opening restraint mechanism 27 is a gas spring (elastic member), but the opening restraint mechanism 27 according to the present invention applies a pressing force and a restoring force to the advance/retreat member 25, and a predetermined range of force is applied. Any other elastic member such as a spring member or a rubber member may be used as long as the opening and closing motion of the door body (3) can be suppressed by the degree of opening.

Furthermore, in the present embodiment, the magnet 33 is an open/close holding mechanism for holding the door body (3) at the desired opening by attracting the pressing plate 32 when the desired opening is reached. The magnet 33 is attached to the pressing plate 32 so as to be attracted to the advancing/retreating member 25, or the magnets 33 are attached to both the upper end portion of the advancing/retreating member 25 and the pressing plate 32 so that they are attached to each other. magnet 33 may be attracted. Further, the open/close holding mechanism may use means other than magnets as long as it is possible to apply an attractive force at a desired degree of opening.

Further, as shown in FIG. 8, it is preferable to provide cover members 34 and 35 for covering the opening/closing control mechanism A of the door body and the lower cylindrical portion 16 of the hinge 4 to improve the design.

Further, the forward/backward movement mechanism 26 and the opening restraint mechanism 27 of the shock absorbing mechanism A2 may be unitized. In this case, for example, it becomes possible to easily add the shock absorbing mechanism A to the existing door body.

Further, the shock absorbing mechanism A2 may be configured by only the opening restraint mechanism 27 without the advancing/retreating member 25. As shown in FIG. In this case, the opening restraint mechanism 27 may be a damping member based on the viscosity of the fluid, or a sliding member based on friction or sliding resistance, instead of absorbing the impact by an elastic member. do not have.

1 door 2 door frame (door frame)
3 Door body (door body)
4 Hinge 15 Shaft 16 Lower tubular portion 17 Upper tubular portion 25 Retractable member (rising member)
26 advance/retreat mechanism 27 opening restraint mechanism 28 guide member 29 guide member 30 cylinder 31 piston rod 32 pressing plate 33 magnet (adsorption member)
A Door body opening/closing control mechanism A1 Closing mechanism (first opening/closing control mechanism)
A2 Impact absorption mechanism (second opening/closing control mechanism)
H opening O1 axis T1 vertical direction

Claims (1)

A mechanism for controlling the opening and closing motion of a door body provided rotatably around an axis extending in the vertical direction on the door bottom side,
a closing mechanism of a first opening/closing control mechanism that adjusts the closing speed of the door body within a predetermined opening range of the door body;
a shock absorbing mechanism of a second opening/closing control mechanism for controlling the opening/closing movement of the door body in an opening range other than the predetermined opening range of the door body ;
The shock absorbing mechanism is
an advancing/retreating mechanism having an advancing/retreating member that advances/retreats in the vertical direction following the opening/closing operation of the door body;
an opening suppression mechanism for controlling the opening operation of the door body by suppressing the advancement speed of the advancing/retreating member while the advancing/retreating member advances by a predetermined amount;
An open/close control mechanism for a door body, comprising an open/close holding mechanism that opens and closes the door body at a predetermined opening degree and holds the door body at the predetermined opening degree by attracting the advance/retreat member to the opening suppression mechanism. .

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