JP2000096964A - Brake mechanism in non-rail gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety with a simple construction by reducing the moving speed of a sliding door by forming a braking mechanism with projections formed at both the sides of lower end portion of the sliding door and linking portions arranged at the inner sides of supporting bodies of the sliding door. SOLUTION: Between sliding door supporting bodies 3 consisting of a pair of side walls, a projection 21 formed to a taper-shape is arranged on each side surface of the lower end portion of the sliding door 2 which slides by guiding by upper and lower pulleys 51. On the other hand, at the position corresponding to the projection 21 of the sliding door 2 of the main bodies 3a, 3a of the sliding door supporting body, a linking portion 31 made of a roller is provided, which is exerted to a sliding door 2 side with a coil spring 32 and a rotation shaft 33 is movable in height direction of the projected portion 21 along an opening 35 which is long in the longitudinal direction. When the sliding 2 is moved in and out, if the projected portion 21 comes close to the linking portion 31, frictional linkage with the roller exerted by a coil spring is strengthened, and moving speed is automatically reduced and the safety can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device used for a gate or the like, and more particularly, to a sliding door device provided with a brake mechanism for reducing a speed when the sliding door is moved in and out.

[0002]

2. Description of the Related Art Conventionally, various types of sliding door devices have been used. However, since sliding doors are usually made of heavy metal such as steel and the like, and the weight is heavy, the sliding door is temporarily stopped. There is a problem that it is difficult to decelerate when riding, which may be dangerous.

In particular, a recently proposed non-rail type sliding door device which does not require a rail on a supporting surface does not have a brake mechanism, and has a maximum speed at the moment when the sliding door is pulled out of the door pocket and comes into contact with a door stop post. This problem was remarkable.

Accordingly, it is an object of the present invention to provide a sliding door device which can reduce the moving speed of the sliding door at the time of pulling out and pulling in the sliding door, thereby further improving safety.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a sliding door apparatus comprising a sliding door and a sliding door support fixed to a support surface and having a support member for slidably supporting the sliding door. The above object has been attained by proposing a sliding door device comprising a brake mechanism for reducing the speed of the sliding door when sliding the sliding door.

In the present invention, the brake mechanism includes at least one convex portion provided on the sliding door and an engaging portion provided on the sliding door support so as to be able to engage with the convex portion. Is preferred.

[0007] It is preferable that the engaging portion is movable in a direction approaching and apart from the sliding door by elastic means.

[0008] Preferably, the elastic means is a coil spring. Further, it is preferable that the engaging portion is a roller that is rotatable in the moving direction of the sliding door.

Further, the sliding door device of the present invention is preferably a non-rail type sliding door device which does not require a rail on a support surface.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing an embodiment of the sliding door device of the present invention, and FIG. 2 is a sectional view taken along the line II-II of FIG. FIG. 3 is a plan view showing a state in which the brake mechanism is operating in the sliding door device shown in FIG. 1, and FIG.
FIG. 2 is a plan view showing a state where a brake mechanism is not acting in the sliding door device shown in FIG. 1.

A sliding door apparatus 1 according to the embodiment shown in FIGS. 1 and 2 has a sliding door 2 and a sliding door support 3 having a support member 5 fixed to a support surface 4 and slidably supporting the sliding door 2.
And

The sliding door device 1 is a non-rail type sliding door device which does not require a rail on the support surface 4.

In the illustrated embodiment, the sliding door 2
Is a vertical lattice type door, as shown in FIG. 1, and the sliding door support 3 has a rectangular shape, but is not limited to these shapes. The sliding door 2 has protrusions 22 at its upper and lower ends. The sliding door support 3 includes a support main body 3a composed of a pair of side walls. A through hole 36 (see FIG. 2) through which the sliding door 2 passes is formed between a pair of side walls constituting the support body 3a. The support member 5 is a pulley structure 51 provided at each of the upper and lower ends of the support 3. The protrusion 22 of the sliding door 2 engages with the groove 52 of the pulley 51. The pulley structure 51 supports the sliding door 2 and guides sliding of the sliding door 2. Such a configuration is the same as that of the conventional sliding door device, and the same mechanism as that of the conventional sliding door device can be adopted as the sliding door support mechanism without any particular limitation.

In the sliding door device 1 of the present embodiment, as shown in FIGS.
A brake mechanism for reducing the speed of the sliding door 2 is provided.

More specifically, as shown in FIGS. 2 to 4, the brake mechanism includes at least one protrusion 21 provided on the sliding door 2 and the support 3 so as to be engageable with the protrusion 21. Member 3 including an engaging portion 31 provided in
0.

One convex portion 21 is provided on each side surface of the lower end portion of the sliding door 2, and the sliding door 2 passes through the through hole 36 of the support body 3 a and passes through the support 3. At this time, it is frictionally engaged with the engaging portion 31 provided on the support 3. By this frictional engagement, the moving speed of the sliding door 2 is reduced. In addition, both ends 21a of the protrusion 21
As shown in FIGS. 3 and 4, the sliding door 2 is tapered so as to prevent an abrupt collision at the time of frictional engagement with the engaging portion 31 and to smoothly decelerate the sliding door 2. The size of the protrusion 21 may be any size.

The engaging member 30 is connected to the support body 3a.
The sliding door 2 inside each side wall constituting the support 3
It is provided on the side facing the sliding door 2 when passing through the inside. When the sliding door 2 penetrates through the inside of the support 3, the engaging member 30 reduces the moving speed of the sliding door 2 at least at the time of pulling in the sliding door 2 and at the end of pulling out. It is provided close to the through hole 36 of the body 3a. The engagement member 30 is
It is provided at the lower end of the support body 3a so as to engage with the projection 21 of the sliding door 2.

The engaging member 30 has an engaging portion 31 that can be frictionally engaged with the convex portion 21. The engaging portion 31 is a roller 31 urged toward the sliding door 2 by a coil spring 32. Specifically, the engagement member 30 is provided on both sides of the sliding door 2, and includes the roller 31 as an engagement portion 31, a roller rotation shaft 33 that rotatably holds the roller 31, A pair of roller holders 34 for holding both end portions of the roller rotation shaft 33, and a roller rotation shaft 33 provided in the roller holder 34.
And a coil spring 32 arranged such that one end thereof is in contact with the coil spring 32. The roller holder 34 has a vertically elongated opening 3 that movably receives the roller rotation shaft 33.
5 In the vertically elongated opening 35, the roller rotation shaft 33 is movable in a direction approaching and separating from the sliding door 2, that is, in a height direction of the projection 21. As a result, the roller 31 rotatably held by the roller rotation shaft 33 can move in a direction approaching or separating from the sliding door 2, that is, in a height direction of the projection 21.

The roller holder 34 is fixed to the support body 3a at its base 34a via a locking member (not shown) such as a bolt. Further, the coil spring 32 is housed in an opening 34 b provided inside the roller support 34, and the coil spring 32
Is fixed to the roller rotation shaft 33,
The other end is fixed to the wall surface of the opening 34b of the roller support 43.

Next, the operation of the brake mechanism of the sliding door device of the present invention will be described. Sliding door device 1 of the present embodiment
Is formed as described above, when the sliding door 2 is taken in and out of the support 3, the sliding door 2 is guided and slid by the support member 5, as shown in FIG. As shown in FIG. 4, the protrusion 21 of the sliding door 2 is
Is not engaged, the brake mechanism does not act on the sliding door 2. When the convex portion 21 of the sliding door 2 approaches the position of the engaging member 30 and the convex portion 21 and the engaging portion 31 are engaged as shown in FIG.
The brake is applied to the sliding door 2 by the force of. That is, when the sliding door 2 penetrates through the inside of the support 3, the protrusion 2
When 1 reaches the engaging portion, that is, the roller 31,
The end portion 21a of the tapered convex portion and the roller 31 start frictional engagement. As the sliding door 2 advances, the rollers 31
That is, the roller rotating shaft 33 presses the coil spring 32 toward the base 34 a of the roller holder 34 against the urging force of the coil spring 32. When the convex portion 21 and the roller 31 are engaged, the roller 31, that is, the roller rotating shaft 33, is pressed against the convex portion 21 by the biasing force of the coil spring 32, and the frictional engagement between the convex portion 21 and the roller 31 is made. ramp up. Thus, the traveling speed of the sliding door 2 is reduced.

As described above, the operation of the sliding door 2 is automatically performed when the sliding door 2 is taken in and out by the operation of the brake mechanism.
Therefore, according to the sliding door device of the present invention, the safety is further improved as compared with the conventional sliding door device.

The sliding door device of the present invention is not limited to the above embodiment, but can be variously modified without departing from the gist of the present invention.

For example, the protrusions 21 may be provided at the upper end or the upper and lower ends of the sliding door 2, and the engaging portions 31 may be provided at positions corresponding to the protrusions 21. By providing a plurality of brake mechanisms in this manner, safety can be further improved.

[0025]

The sliding door apparatus of the present invention has a simple structure, but has a brake mechanism that can reduce the moving speed of the sliding door, so that the safety when the sliding door is taken in and out without increasing the manufacturing cost. Can be further improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a sliding door device of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a plan view showing a state in which a brake mechanism is operating in the sliding door device shown in FIG. 1;

FIG. 4 is a plan view showing a state where the brake mechanism is not acting in the sliding door device shown in FIG. 1;

DESCRIPTION OF SYMBOLS 1 Sliding door device 2 Sliding door 21 Convex part 3 Sliding door support 30 Engagement member 31 Engagement part (roller) 32 Coil spring 33 Roller rotation shaft 34 Roller holder 35 Opening 36 Through hole 4 Support surface 5 Supporting member

[Procedure amendment]

[Submission date] June 16, 1999 (1999.6.1
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006] In the present invention, the brake mechanism is, above
At least one projection provided on the sliding door;
A pair of doors provided at corresponding positions on both sides of the door support
And an engaging portion, wherein the engaging portion is engageable with the convex portion.
Rollers, a rotating shaft of the roller, and both ends of the rotating shaft.
The direction in which the rollers are provided and the rollers approach the sliding door
And a pair of elastic means capable of moving in the separating direction,
Is provided.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction contents]

The roller holder 34 is fixed to the support body 3a at its base 34a via a locking member (not shown) such as a bolt. Further, the coil spring 32 is housed in an opening 34 b provided inside the roller holder 34, and the coil spring 32
Is fixed to the roller rotation shaft 33,
The other end is fixed to the wall surface of the opening 34 of the roller holder 34 .

Claims (6)

[Claims] 1. A sliding door device comprising: a sliding door; and a sliding door support fixed to a support surface and having a support member that slidably supports the sliding door. A sliding door device comprising a brake mechanism for reducing the speed of a sliding door. 2. The brake mechanism comprises: at least one projection provided on the sliding door; and an engagement member including an engagement portion provided on the sliding door support so as to be able to engage with the projection. The sliding door device according to claim 1, wherein the sliding door device is configured. 3. The sliding door device according to claim 2, wherein the engaging portion is movable by an elastic means in a direction approaching the sliding door side and in a direction away from the sliding door side. 4. The sliding door device according to claim 3, wherein said elastic means is a coil spring. 5. The sliding door device according to claim 2, wherein the engaging portion is a roller rotatable in a moving direction of the sliding door. 6. The sliding door device according to claim 1, wherein the sliding door device is a non-rail type sliding door device that does not require a rail on a support surface.