JPH08277678A - Closing device for sliding door - Google Patents

Abstract

PURPOSE: To stop a sliding door at the stopping position so that the sliding door does not collide with a vertical frame even when it is vigorously closed by allowing an attracting means provided at the lower end section of the sliding door to attract a receiving plate provided on a threshold at the closing position. CONSTITUTION: An attracting means 1a provided at the lower end section of a sliding door 1 and a receiving plate 4 provided on the threshold rail 3 of a threshold 2b are separated from each other when the sliding door 1 is opened. The shaft body (a) of the attracting means 1a is pulled to a cover (c) side by the force of a spring (s), and a gap exists between the lower face of the sliding door 1 and the rail 3. When the sliding door 1 is closed, the attracting means 1a is moved on the rail 3. When the sliding door 1 reaches the closing position, the attracting means 1a is positioned directly above the receiving plate 4. The receiving plate 4 is integrally attracted to the attracting means 1a by the magnetic force of a magnet (m) at the tip of the shaft body (a) of the attracting means 1a, and the sliding door 1 is stopped and fixed to the threshold rail 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door closing device installed on a sliding door and a sliding door rail for stopping the sliding door near a vertical frame.

[0002]

2. Description of the Related Art Conventionally, when the sliding door is closed properly, it is bounced by the reaction of the sliding door colliding with the vertical frame and cannot be properly closed near the vertical frame. For this reason, a stopper such as a leaf spring is attached to the sliding door rail, and the sliding door is pressed to decelerate and close the vertical frame. (See Jitsuko Sho 52-20449)

However, since the stoppers of these sliding doors slow down and stop the sliding doors by the frictional force caused by the stoppers pressing the sliding doors, it is difficult to adjust the pressing force of the stoppers against the sliding doors and the function of closing the sliding doors. Wasn't good enough and was never satisfying.

[0004]

In order to solve the above problems, the inventor of the present invention has found that the lower end portion and / or the upper end portion of the sliding door 1 and the sill rail 3 and / or the kamoi rail are provided. At least the tip of one of them is a magnetic material m
And a receiving plate 4 which is attracted by magnetic force with the magnetic substance m of the suction means 1a is provided on the other side. At the time of closing 1, the shaft body a of the adsorption means 1a is a magnetic body m.
Is a device for closing the sliding door 0 provided at a position where it projects from the inside of the main body cover c and is attracted to the receiving plate 4 by the magnetic force.

[0005]

[Structure] The following description will be given with reference to the drawings. FIG. 1 shows an embodiment of a closing device for a sliding door according to the present invention. A door roller type sliding door 1 is fitted in a sliding door frame 2, a suction means 1a is provided at a lower end of the sliding door 1, and a sill rail 3 is provided with a receiving plate 4 which is long in the rail 3 direction. Since the sliding door 1 is supported by the door roller 1b, the lower surface of the sliding door 1 and the threshold rail 3
There is a gap between them.

The suction means 1a is composed of a cover, a shaft, a magnetic body, a spring and the like. The suction means 1a is provided with a through hole p on one surface of the box-shaped cover c for the shaft body a to project from the inside. A shaft a provided with a locking piece e for preventing slipping out is inserted in the cover c so as to be able to be taken in and out. A coil spring 5 or a leaf spring is attached to the shaft a, and the shaft a is held only when attracted. The shaft a projects into the outside and is housed in the cover c when not adsorbed.

Of course, the strength of the spring s is set to be weaker than the force attracted by the magnet m, and the strength of the shaft a is naturally accommodated in the cover c. This spring s is provided only when the adsorbing means 1a is provided above (the lower end of the sliding door, inside the Kamoi rail) and it is necessary to prevent the shaft a from protruding downward by the spring s when not adsorbing. Good luck
When it is provided below (upper end of the sliding door 1 and inside the threshold rail 3), the shaft a naturally falls and is housed in the cover c when not adsorbed. Therefore, the spring s may or may not be attached. It is a good one.

The shaft a has a rod shape, and the whole shaft a is made of a magnetic material such as a magnet m or a metal such as iron, or the main body of the shaft a is made of plastic, metal or the like. It may be attached or embedded so that the magnetic substance or metal is exposed at the tip. The sectional shape of the shaft body a may be any shape such as a quadrangle, a circle, and an ellipse.

On the other hand, the receiving plate 4 is mainly composed of a receiving plate body 4b, a cover 4C, and a support shaft 4a for supporting the receiving plate main rest 4b. Since the shape of the receiving plate body 4b is long in the sliding door rail 3 direction, the cover 4c of the receiving plate 4 is also long in the sliding door rail 3 direction. Box-shaped long cover 4c
A through hole 4a through which the shaft body 4a penetrates is provided on one surface, and a support shaft 4a having a locking piece 4e for preventing slipping out is housed in and out freely.

A support plate body 4b, which is long like the cover 4c, is fixed to the tip of the support shaft 4a. Support plate body 4b
A magnetic material such as a magnet 4m or a metal piece such as iron is attached and embedded on the surface of the, and is exposed on the surface of the rail 3.

The receiving plate 4 having the suction means has an embedded hole 2h formed in the lower end and / or the upper end of the sliding door 1, the sill rail 3 and / or the duck rail, and the shaft of the adsorption means is inserted in the embedded hole 2h. The tip of the magnetic body 4m exposed on the surface of the body of the receiving plate 4 is the surface of the rail 3 and the sliding door 1
It is embedded and fixed with an adhesive or screws so that it is flush with the surface. When fixing with screws, a collar 4v extending from the surface side of the cover 4c is provided, a screw hole is formed in the collar 4v, and the screw is inserted through the screw hole. In FIG. 1, 2 is a sliding door frame, 2a is a vertical frame, and 2b is a threshold.

As for the closing device composed of the suction means 1a and the receiving plate 4, one may be attached to the sliding door 1 side (lower end portion, upper end portion of the sliding door) and the other to the rail 3 side (sill rail, kamoi rail). The means 1a is attached to the sliding door 1 side, and the receiving plate 4 is attached to the rail 3 side.

However, if the suction means 1a is provided at the lower end of the sliding door 1, the receiving plate 4 is installed on the sliding door rail 3, so that the sliding door and the frame are opposed to each other (for example, the lower end of the sliding door and the sill rail). The combination of attaching the suction means 1a and the receiving plate 4 must be configured as one set. The pair of closing devices may be provided only on the Kamoi side,
It can be provided only on the sill side, or at two places on the kamoi side and the sill 2b side.

Both the adsorbing means 1a and the receiving plate 4 do not necessarily have to be magnetic materials. If one of them is a magnetic material such as a magnet, the other is a metal piece such as iron that is attracted by magnetic force. May be For example, the suction means 1a is provided at the lower end of the sliding door 1, and the sill rail 3 is provided with the receiving plate 4a.
If a magnet is provided, a magnet can be provided at the tip of the shaft body a on the lower end side of the sliding door 1, and a metal piece such as iron can be arranged on the surface of the receiving plate body 4b, or vice versa. A magnetic body can also be provided. When both the attracting means 1a and the receiving plate 4 are magnetic bodies, it is needless to say that the opposing poles are different in order to attract by magnetic force.

Further, when either the attraction means 1a or the receiving plate 4 is attracted, if the magnetic bodies m, 4m at the tip end are projected from the covers c, 4c by the magnetic force, the other one is exposed. As described above, the rail 3 or the end surface of the sliding door 1 may be simply stuck or embedded and fixed, or both of them may be movable so that they can be taken in and out, and they may be made to stick out by being projected from both. The structure that allows the receiving plate body 4b to be freely taken in and out is similar to the structure of the suction means.

The position at which the suction means 1a and the receiving plate 4 are attached may be such that the suction means 1a protrudes from the cover c when the sliding door 1 is closed and is in a positional relationship where the suction means 1a and the receiving plate 4 are sucked. It is not essential,
It may be provided near the center.

As shown in FIG. 1, the suction means 1a provided on the lower end of the sliding door 1 and the receiving plate 4 provided on the threshold rail 3 are covered by the springs s, 4s of the shafts a, 4a when the sliding door 1 is opened. It is pulled to the c and 4c sides, and there is a gap between the lower surface of the sliding door 1 and the rail 3, and they are separated.

When the sliding door 1 is closed, the sliding door 1
When the sliding means 1a on the sliding door 1 side moves on the rail 3 by being closed, and when the sliding door 1 reaches the closing position, it is positioned directly above the receiving plate 4, and the magnetic force of the magnetic force is applied to the tip end of the shaft body a of the suction means. When the receiving plate body 4b of the plate 4 is adsorbed and integrated, and the sliding door 1 is fixed to the threshold rail 3, the sliding door 1
Will stop.

At the closed position of the sliding door 1, the sliding door 1, the sill 2b and the duck are integrated through the suction means 1a which is a closing device and the receiving plate 4, so that the sliding door 1 can be securely closed at the closed position. Further, the sliding door 1 is held on the sill or the duck, so that wobble or the like can be eliminated.

Further, when the sliding door 1 is closed, the suction means 1
a or the receiving plate 4 is extended in the length direction of the rail 3 toward the opening direction of the sliding door 1. The position where the suction means 1a and the receiving plate 4 are installed is such that the shaft a of the suction means 1a is attracted to the receiving plate 4 by magnetic force when the sliding door 1 is completely closed as shown in FIG. Only when the receiving plate 4 installed on the rail 3 side reaches the closing position, both are adsorbed and stopped.

On the other hand, as shown in FIG. 3, the suction means 1a
Alternatively, when the receiving plate 4 is extended in the length direction of the rail 3 to the open side from the closed position, adsorption starts from before the closing position of the sliding door 1, and the brake is applied to reach the closing position while decelerating. It will stop. By doing so, the sliding door 1 is closed at the closed position while decelerating from the front side of the closed position, so that smooth opening and closing can be performed.

[0022]

With the above construction, the closing device composed of the suction means 1a and the receiving plate 4 is integrated by magnetic force, so that the sliding door can be stopped at the closing position of the sliding door 1. The sliding door can be prevented from colliding with the frame 2, and even if the sliding door is tightly closed, it can be properly closed near the vertical frame. Moreover, since the sliding door can be prevented from colliding with the sliding door frame, damage to the sliding door and the sliding door frame can be prevented.

At the time of closing, since the attracting means and the receiving plate are integrated by the magnetic force to hold the sliding door 1, it is possible to prevent rattling of the sliding door 1 and strong rattling noise caused by strong sliding wind. it can.

[Brief description of drawings]

FIG. 1 is a partially transparent cross-sectional view showing an open state of a sliding door 1 equipped with a locking device of the present invention,

FIG. 2 is a partially transparent cross-sectional view showing the same when the sliding door 1 is closed.

FIG. 3 is a partially transparent cross-sectional view showing a closed state of a sliding door when a receiving plate 4 provided on a sill rail 3 is extended in an opening direction.

FIG. 4 is a sectional view of the adsorption device 1a.

FIG. 5 is a sectional view of the receiving plate 4.

[Explanation of symbols]

1: Sliding door, 1a: Adsorption means, 1b: Pulley, 2: Sliding door frame,
2a: vertical frame, 2b: threshold, 2h: buried hole, a: shaft body,
c: cover, m: magnet, h: through hole, s: coil spring,
e: locking piece, 3: threshold rail, 4: receiving plate, 4a: support shaft, 4b: receiving plate body, 4c: cover, 4v: brim.

Claims (2)

[Claims] 1. A shaft having a lower end and / or an upper end of a sliding door and / or a sill rail and / or a kamoi rail, at least a tip of which is made of a magnetic material and which is vertically housed in a main body cover. On the other hand, a receiving plate that is attracted by the magnetic body and magnetic force of the attracting means is attracted by the magnetic force of the attracting means and the shaft of the attracting means is projected from the inside of the main body cover by the magnetic force of the magnetic body when the sliding door is closed. A closing device for a sliding door provided at a position where it is attracted to the receiving plate. 2. When the sliding door is closed, the suction means or the receiving plate is extended in the length direction of the rail and in the opening direction of the sliding door rather than the position of the shaft body, and the suction means and the receiving plate are arranged before the closing of the sliding door. The closing device for the sliding door according to claim 1, wherein the device is made to adsorb.