JP4013223B2 - Door cushion and bounce prevention device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In various doors such as toilet booth doors, balance doors, folding doors, etc., the present invention absorbs shocks and impact sounds when the doors collide with the fixed frame, and after the collisions. The present invention relates to a door cushioning and bounce preventing device capable of preventing the door from bounce.
[0002]
[Prior art]
In general doors, when the door is opened and closed and stopped at a stationary position where the opening is closed or opened, the door collides with a fixed frame, etc., and an irritating collision sound is generated, or the glass or wall is damaged by an impact. In particular, doors that do not have latches, such as toilet booth doors, folding doors, balance doors, etc., rebound after the door collides with the frame, hit the user, rattle due to wind pressure, etc. Occasionally there was a fluttering sound between the frames. A stopper with a shock absorber designed to alleviate such an impact has also been proposed (see, for example, Patent Documents 1 and 2). However, since the door is attracted and held by a magnet, the rebound phenomenon is surely achieved when the magnetic force is weakened. However, if the magnetic force is increased, a large force is required to rotate the door, and the usability is not good.
[0003]
[Patent Document 1]
Japanese Patent No. 2810710 (Claims and drawings)
[Patent Document 2]
Japanese Patent No. 2871786 (claims, drawings)
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a door cushioning and bounce prevention device that, when opening and closing the door, alleviates the impact when colliding with a fixed frame or the like at a stationary position and can be held securely so that the door does not bounce. Is to provide.
[0005]
[Means for Solving the Problems]
According to the present invention, an arm is provided on a brake rotating shaft, a receiving groove is opened at the tip of the arm and a locking piece is formed, and a pin that can be inserted into the receiving groove of the arm is provided. When the door approaches the stationary position, either the brake device body or the pin is provided on the fixed frame or the door so that the pin hits the locking piece and the arm is rotated to be inserted into the receiving groove. Provided is a door cushioning and bounce prevention device characterized by being provided on a door or a fixed frame, and the above-mentioned problems are solved.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention can be applied to various doors such as a toilet booth door, a folding door, a balance door, and other hinged doors and sliding doors. The brake device is provided at a stationary position of the door (1) that opens or closes the opening. A main body (2) and a pin (3) are provided, and either the main body (2) or the pin (3) is provided on a fixed frame or a door, and the other is provided on a door or a fixed frame. In the embodiment shown in FIG. 1, a pin (3) is provided on the upper end surface of a hinged door (1) such as a toilet booth or the like that rotates in a lateral direction, and a braking device body ( 2) is provided.
[0007]
2 to 4, the brake device main body (2) includes a spring pin on a shaft (5) for braking rotation and one end of the shaft (5), a square shaft portion (6) formed at the lower end in the figure. It has an arm (8) fixed by a fastening pin (7) such as. The main body (2) has a mounting plate (9). A bearing (10) is fastened to the center upper surface of the mounting plate (9) with a screw (11), and a cylindrical shape is formed on the outer periphery of the bearing (10). The brake cylinder (12) is fitted and fixed by a fastening pin (13) such as a spring pin. The shaft (5) extends through the bearing (10), the upper end of the shaft (5) is supported by the top plate portion (14) of the brake cylinder (12), and a screw (15) is externally attached. It is fastened.
[0008]
The main body (2) is provided with a braking means for braking the rotation of the shaft (5). The braking means may be a means using a spring or various means using hydraulic pressure, pneumatic pressure, fluid friction, etc. In the embodiment shown in the figure, means using a fluid resistance is shown. . That is, a brake plate (16) is formed so as to face the inner surface of the brake cylinder (12) with a small gap, the brake plate (16) is fixed to the shaft (5), and the brake cylinder (12 ) Is filled with high-viscosity oil such as silicon oil or other braking fluid (17), and an O-ring (18) is provided at an appropriate place for sealing. With this configuration, fluid resistance acts on the brake plate (16) during rotation, so the shaft (5) rotates while being braked.
[0009]
The arm (8) has a receiving groove (19) that opens in the distal direction so that the pin (3) can be received when the door approaches the stationary position, and both ends of the receiving groove (19) are provided at both ends. Locking pieces (20) and (21) are formed. The locking pieces (20) and (21) may be formed to have the same length, but when the pin (3) is inserted, it hits the rear locking piece (21) and the arm (8). The locking piece (20) on the insertion side is shortened so that the pin enters the receiving groove (19) while rotating. Thus, by configuring the insertion-side locking piece (20) to be short, when the door (1) is moved from the stationary position, it is possible to shorten the range in which the braking action is applied. In the embodiment shown in the figure, the arm (8) is formed by a single plate-like body, but may be configured in combination so that the length can be adjusted by a plurality of members.
[0010]
The mounting plate (9) has flanges (22) and (22) at both ends, and a cover (23) is provided so as to be fitted to the flanges (22) and (22). The cover (23) is provided with an engaging recess (25) for engaging with a locking projection (24) provided on the flange (22), and an insertion groove for inserting the pin (3). (26) is formed.
[0011]
The pin (3) may be formed directly on the door (1). However, in the embodiment shown in the figure, the pin (3) protrudes from the upper surface of the substantially L-shaped flange (27), and the flange (27) is connected to the door. It is attached to the upper end surface of (1). The cross-sectional shape of the pin (3) may be circular, but in the embodiment shown in the figure, when inserted into the receiving groove (19), a ridge is formed on the side in contact with the locking piece (21). (28) is formed in a substantially sectoral cross section.
[0012]
The brake device body (2) may be mounted by screwing the mounting plate (9) directly on the lower surface of the headboard. In the embodiment shown in the figure, the receiving plate (29) is mounted on the upper surface of the headboard (4). The cover (23) is attached to the lower surface of the headboard by screwing the screw (31) into the screw hole (30) from the lower surface side of the receiving plate (29), and then the cover (23) is attached to the mounting plate (9). It is fitted.
[0013]
When the brake device body (2) and the pin (3) approach a stationary position where the door (1) opens or closes, the pin (3) is inserted into the insertion groove (26) and the arm (26) of the cover (23). It is provided so as to exist at a position facing the receiving groove (19) of 8) (FIG. 5). Then, when the door (1) comes closer to the fixed frame (headwood), the pin (3) hits the locking piece (21) of the arm (8) as shown in FIG. The arm (8) is inserted into the receiving groove (19) while rotating. At this time, since the shaft (5) connected to the arm (8) is braked and rotated, the impact of the door (1) is alleviated, and the arm (8) is rotated as shown in FIG. As a result of the movement, even if the door (1) tries to return in the direction opposite to the arrow (32), the pin (3) hits the locking piece (20) to prevent rebound.
[0014]
On the other hand, when the door (1) is moved from the stationary position, the pin (3) moves the arm (8) to the arrow (33) as the door (1) moves as shown in FIG. When the pin (3) is pulled out from the receiving groove (19) (FIG. (D)), the door can be moved freely. At this time, since the length of the locking piece (20) on the insertion side is shortened as described above, the time for applying resistance to the door (1) can be shortened and the operability is good. In this state, the arm (8) stands by in a state where the pin (3) can be received and received as shown in FIG. 6 (A).
[0015]
In the above embodiment, the brake device main body (2) is provided on the fixed frame (headwood) and the door is provided with the pin (3). However, a pin may be provided on the fixed frame and the brake device main body may be provided on the door. In addition, although it is provided on the upper surface side of the door, it can also be provided on the lower surface side, the door end edge side, etc. The present invention can also be applied to various doors.
[0016]
【The invention's effect】
The present invention is configured as described above, and when the door approaches the stationary position, the pin hits the locking piece of the arm to rotate the arm and is inserted into the receiving groove of the arm to be connected to the arm. Since the shaft is rotated while being braked, the impact of the door is mitigated, and the pin is inserted into the receiving groove of the arm to prevent the door from rebounding, and the structure is simple and economically obtained. Since it is not used, the effect can be reliably obtained over a long period of time, and the operability is also good.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along a headboard.
FIG. 3 is a cross-sectional view in a direction intersecting with a headboard.
FIG. 4 is an exploded perspective view.
FIG. 5 is a plan view showing a relationship between a pin and a braking device main body.
FIGS. 6A to 6D are explanatory views showing a relationship between an arm and a pin.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Door 2 ... Braking device main body 3 ... Pin 4 ... Kasagi (fixed frame)
5 ... Axis 8 ... Arm 9 ... Mounting plate
16 ... Brake plate
17 ... Brake fluid
19 ... Slot
20, 21 ... Locking piece
23… Cover

Claims (3)

The brake is equipped with an arm on the axis for braking rotation, a receiving groove is opened at the tip of the arm and a locking piece is formed, and a pin that can be inserted into the receiving groove of the arm. When this occurs, either the brake device main body or the pin is provided on the fixed frame or door and the other is provided on the door or fixed frame so that the pin hits the locking piece and is inserted into the receiving groove while rotating the arm. A door cushioning and bounce prevention device characterized by that. The door cushioning and bounce prevention device according to claim 1, wherein braking of the shaft is braking by fluid resistance. 3. The door cushioning and bounce preventing device according to claim 1, wherein the locking pieces are formed on both sides of the receiving groove, and the locking piece on the side where the pin is inserted is formed shorter than the other locking piece.

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