JP4502926B2 - Sliding door device - Google Patents

Description

The present invention relates to a sliding door device, and in particular, in a direction in which a door is disposed on a door bracket bracket fixed to the upper portion of the sliding door, and the sliding door can be moved to a first rail via the door and automatically closed. The present invention relates to a sliding door device provided with a free stop mechanism for urging and suspending and stopping the sliding door at an arbitrary position.

  Conventionally, as shown in FIG. 3, a door wheel 3 is disposed on a door wheel bracket 2 fixed to the upper part of the sliding door 1, and the sliding door 1 can be moved to a rail 4 via the door wheel 3 and automatically closed. A sliding door device has been proposed in which a free stop mechanism 5 for stopping and sliding the sliding door 1 at an arbitrary position is provided (see Patent Document 1).

  In this sliding door device, the sliding door 1 that is automatically biased in the closing direction is attached by tilting the rail 4 that suspends the sliding door 1 to the upper frame 6 so that the door end faces downward. The free locking mechanism 5 is stopped at an arbitrary position by the locking action of the elastic locking member 51 constituting the free stop mechanism 5 and the rail 53 with which the elastic locking member 51 is slidably contacted. By applying a force in the closing direction, the elastic locking member 51 is swung in the opposite direction, the locking action by the free stop mechanism 5 is released, and the sliding door 1 is automatically closed. .

In this sliding door device, the elastic locking member 51 constituting the free stop mechanism 5 is connected to the front side of the door wheel 3 (the door end side of the sliding door 1) via the auxiliary bracket 50x whose base side is fixed to the door wheel bracket 2. together swingably disposed), the rail 4 to suspend the sliding door 1, parallel to the rail 4, the elastic engaging member 51 of the free stop mechanism 5 had to be integrally formed rail 53 sliding contact .
And the door wheel 3 which suspends the sliding door 1 so that a movement to the rail 4 is considered, and the door wheel fixed to the symmetrical position of the moving direction (width direction of the sliding door 1) of the sliding door 1 of the upper part of the sliding door 1 in consideration of the weight balance of the sliding door 1. Although arranged on the bracket 2, the position of the door 3 affects the running stability of the sliding door 1. In order to improve the running stability of the sliding door 1, the door 3 is attached to the end of the sliding door 1. It is necessary to increase the distance between the two door pulleys 3 by arranging them close to each other.

By the way, the elastic locking member 51 constituting the free stop mechanism 5 is disposed on the front side of the door wheel 3 (the door end side of the sliding door 1) via the auxiliary bracket 50x whose base end side is fixed to the door wheel bracket 2. Thus, the state in which the free stop mechanism 5 does not act on the sliding door 1 in the initial operation in the opening direction from the closed position of the sliding door 1 (the state in which the free stop mechanism 5 does not act), that is, the free stop mechanism 5 is reset. It is necessary to be in a state.
In this sliding door device, the end portion of the rail 53 with which the elastic locking member 51 constituting the free stop mechanism 5 is slidably contacted is omitted, and the elastic locking member 51 hangs down at that portion (the end portion of the rail 53). The free stop mechanism 5 is reset by setting the auxiliary bracket 50x in a state of protruding to the door end side of the sliding door 1, and therefore the door carriage bracket 2 is inevitably attached to the counterdoor. There is a problem that the sliding stability of the sliding door 1 must be sacrificed by reducing the distance between the two door wheels 3 with respect to the width dimension of the sliding door 1.
Japanese Patent No. 2668321

In view of the above-described problems of the conventional sliding door device, the present invention provides a sliding door device provided with a free stop mechanism, in which the door is disposed close to the end position of the sliding door, and the interval between the two door wheels is increased. It is a first object of the present invention to provide a sliding door device that can improve the running stability of the sliding door.
The present invention also provides a sliding door device that can easily realize a structure that can be easily opened in a state in which the free stop mechanism does not work with respect to the sliding door in the initial operation from the closing position of the sliding door to the opening direction. The purpose.

In order to achieve the first object, the sliding door device of the present invention has a door wheel disposed on a door wheel bracket fixed to the upper part of the sliding door, and the sliding door can be moved to the first rail via the door wheel, and In the sliding door device in which a free stop mechanism for stopping the sliding door at an arbitrary position is arranged while being urged and suspended in the direction of automatically closing,
An auxiliary bracket having a substantially U-shaped cross-section, and an elastic locking member configured to be swingable on a swing shaft provided in the auxiliary bracket, and forming the free stop mechanism,
The base end side of the auxiliary bracket is fixed to the door wheel bracket fixed to the upper part of the sliding door, and the other end side of the auxiliary bracket is configured to extend to the side surface of the door wheel on the door side of the sliding door, The swing shaft is provided from the other end side of the auxiliary bracket toward the door wheel,
The elastic locking member is disposed so as to be swingable at a side surface position of the door pulley on the door end side of the sliding door .

In this case, the second rail is provided in parallel with the first rail for suspending the sliding door, and the elastic locking member is in sliding contact with the second rail.
The elastic locking member is a side position of the door roller in door end side of the sliding door, and the position where the supporting shaft of the door rollers and the swing axis of the elastic engaging member is substantially the same position in the moving direction of the sliding door The second rail can be disposed in sliding contact with the second rail .
Here, “substantially the same position” means a dimension in the moving direction of the sliding door, which is within 10 mm.

Further, to achieve the second object, said first rail for suspending the sliding door, in parallel with said first rail, with the elastic engaging member is integrally formed a second rail for sliding contact, the elastic engagement The door end side of the sliding door of the second rail with which the stopping member is in sliding contact can be removed over a predetermined length.

According to the sliding door device of the present invention, the door is disposed in the door bracket that is fixed to the upper part of the sliding door, and the sliding door can be moved to the first rail via the door and is attached in the direction of automatically closing. In the sliding door device in which a free stop mechanism for stopping and sliding the sliding door at an arbitrary position is provided, the elastic locking member constituting the free stop mechanism is arranged at the base end on the door tip side of the sliding door. Since the other side of the auxiliary bracket with the other side extended to the side of the door pulley is swingably disposed, the free stop mechanism brings the door closer to the end position of the sliding door. It is not an obstacle when trying to dispose, and the door is placed close to the end position of the sliding door, and the distance between the two doors is increased to improve the running stability of the sliding door. be able to.

  Further, by arranging the support shaft of the door pulley and the swing shaft of the elastic locking member of the free stop mechanism at substantially the same position in the moving direction of the sliding door, It is possible to easily and accurately adjust the height position of the swing shaft of the elastic locking member.

Further, the first rail for suspending the sliding door, in parallel with said first rail, with elastic locking member of the free stop mechanism is integrally formed a second rail for sliding, elastic locking member of the free stop mechanism sliding the second door leading side of the sliding door rail contact, by removing over a predetermined length, with elastic locking member of the free stop mechanism can be reduced the manufacturing cost of the second rail sliding, of the second rail It is possible to easily and accurately perform the mounting work to the upper frame and the like, and by simply performing a simple process on the integrally formed second rail, an elastic member constituting a free stop mechanism at a position near the sliding door is closed. in the state of being suspended without sliding contact a stop member on the second rail, lightly opening operation in a state in which to operate the sliding door initially in the opening direction does not act free stop mechanism from the closed position of the sliding door It is possible to be so.

Hereinafter, embodiments of the sliding door device of the present invention will be described with reference to the drawings.
1 to 2 show an embodiment in which the sliding door device of the present invention is applied to a double-wall-type sliding door device.

As shown in FIG. 1, this double-wall-type sliding door device includes two sliding doors 1 and 1A (where the leading sliding door 1 is a “front sliding door” and the trailing sliding door 1A is “ The rear door is called “rear sliding door” by a conventionally known arbitrary interlocking mechanism (not shown). 3, and the sliding door 1, 1 </ b> A is movably suspended on the first rail 4 via the door pulley 3, and the first rail 4 is inclined to the upper frame 6 or the like so that the door end side is directed downward. By attaching the sliding doors 1, the sliding doors 1 and 1A are automatically biased in the closing direction.

The front sliding door 1 is provided with a free stop mechanism 5 for stopping the sliding doors 1 and 1A at an arbitrary position.
As shown in FIG. 2, the free stop mechanism 5 is provided with an elastic lock in order to dispose an elastic lock member 51 constituting the free stop mechanism 5 at a side surface position of the door wheel 3 on the door end side of the front sliding door 1. The member 51 is disposed on the other end side of the auxiliary bracket 50 whose base end side is fixed to the door carriage bracket 2 on the front end side of the front sliding door 1, for example, having a substantially U-shaped cross section, and is elastic. The sliding door 1, 1A is stopped at an arbitrary position by the locking action of the locking member 51 and the second rail 53 with which the elastic locking member 51 is slidably contacted. Further, the front sliding door 1 is stopped by hand. By applying a force in the closing direction, the elastic locking member 51 is swung in the opposite direction, the locking action by the free stop mechanism 5 is released, and the sliding doors 1 and 1A are automatically closed. Yes.
Here, similarly to the conventional free stop mechanism, the elastic locking member 51 constituting the free stop mechanism 5 is a single member made of elastic rubber, synthetic resin or the like, or the outer peripheral portion is made of a high material such as rubber or synthetic resin. The friction member is a composite member that incorporates a metal spring that generates a restoring force therein, and is disposed so as to be swingable while being eccentric to the swing shaft 52.

Then, when the elastic locking member 51 constituting the free stop mechanism 5 is disposed as described above, the free stop mechanism 5 intends to dispose the door wheel 3 close to the end position of the front sliding door 1. The door 3 can be disposed close to the end position of the front sliding door 1 via the door bracket 2 and the distance between the two doors 3 and 3 of the front sliding door 1 is increased. Thus, the running stability of the sliding door 1 (1A) can be improved.
In this embodiment, the auxiliary bracket 50 is attached so that the intermediate connection portion of the auxiliary bracket 50 having a substantially U-shaped cross section is located on the door end side of the front sliding door 1. The mounting direction is not limited to this, and the intermediate connection portion of the auxiliary bracket 50 is positioned on the opposite door end side of the front sliding door 1 or is positioned above the door wheel 3 (the auxiliary bracket is not contacted with other members). 50 can be bridged above the door pulley 3).
In the present embodiment, in consideration of the simplification of the mounting work, the auxiliary bracket 50 having a substantially U-shaped cross section is used, and this is used as a door-side bracket for the front door of the front sliding door 1. The base end side was fixed to 2 .

In this case, in the free stop mechanism 5, the swing shaft 52 of the elastic locking member 51 of the free stop mechanism 5 is substantially the same position in the moving direction of the front sliding door 1 with respect to the support shaft 31 of the door wheel 3, specifically In this case, it is desirable to arrange the front sliding door 1 within a dimension L in the moving direction within 10 mm.
Thus, the adjustment of the elastic locking member 5 1 of free stop mechanism 5, specifically, the height position of the resilient locking member 5 1 of the pivot axis 52 of the free stop mechanism 5 with respect to the support shaft 31 of the door rollers 3 Can be adjusted easily and accurately.

Further, the second rail 53 to the elastic engagement member 51 of the free stop mechanism 5 is sliding, parallel to the first rail 4 for suspending the sliding door 1 (1A), and, together with the integrally formed, the second rail 53 As shown in FIGS. 2B and 2C, the front end side of the front sliding door 1 can be removed by scraping over a predetermined length to form the rail removal portion 53a.
Thus, it is possible to reduce the manufacturing cost of the second rail 53 to the elastic engagement member 51 of the free stop mechanism 5 is in sliding contact, is possible to perform the mounting work on the upper frame 6 and the like of the second rail 53 in a simple and accurate it can.
Also, just subjected to simple machining to the second rail 53 which is integrally molded without sliding contact with the elastic engaging member 51 constituting the free stop mechanism 5 to the second rail 53 at positions near the front sliding door 1 is closed The swinging direction of the elastic locking member 51 when opening the sliding doors 1, 1 </ b> A can be stabilized, and the elastic locking member 51 can be operated smoothly and reliably. The opening operation can be easily performed in a state where the free stop mechanism 5 does not work with respect to the front sliding door 1 in the initial operation in the opening direction from the closed position of 1A.

  As mentioned above, although the sliding door apparatus of this invention was demonstrated based on the Example of a double-type wall storage type sliding door apparatus, this invention is not limited to the structure described in the said Example, For example, 1 The configuration can be appropriately changed within a range not departing from the gist of the invention, such as a sliding door device composed of a single sliding door.

  The sliding door device of the present invention is a sliding door device provided with a free stop mechanism. The sliding door device is arranged close to the end position of the sliding door, and the distance between the two door wheels is increased, whereby the sliding stability of the sliding door is increased. Therefore, it can be suitably used for a sliding door device provided with a free stop mechanism used in a hospital or the like.

It is the whole front view which shows one Example of the sliding door apparatus of this invention. The main part is shown, (a) is a plan view, (b) a front view, (c) is a side view. The principal part of the conventional sliding door apparatus is shown, (a) is a top view, (b) is a front view, (c) is a side view.

1 Sliding door (front sliding door)
1A Sliding door (rear sliding door)
2 Door car bracket 3 Door car 31 Support shaft 4 1st rail (for door car)
5 Free stop mechanism 50 Auxiliary bracket 51 Elastic locking member 52 Oscillating shaft 53 Second rail (free stop mechanism)
53a Rail removal part 6 Upper frame

Claims (3)

A door wheel is disposed on a door wheel bracket fixed to the upper part of the sliding door, and the sliding door is movably suspended on the first rail through the door wheel and is automatically biased in a closing direction. In the sliding door device provided with a free stop mechanism for stopping at an arbitrary position,
An auxiliary bracket having a substantially U-shaped cross-section, and an elastic locking member configured to be swingable on a swing shaft provided in the auxiliary bracket, and forming the free stop mechanism,
The base end side of the auxiliary bracket is fixed to the door wheel bracket fixed to the upper part of the sliding door, and the other end side of the auxiliary bracket is configured to extend to the side surface of the door wheel on the door side of the sliding door, The swing shaft is provided from the other end side of the auxiliary bracket toward the door wheel,
The sliding door device in which the elastic locking member is disposed so as to be swingable at a side surface position of the door pulley on the door end side of the sliding door. A second rail disposed parallel to the first rail for suspending the sliding door and in contact with the elastic locking member;
The elastic locking member is a side position of the door roller in door end side of the sliding door, and the position where the supporting shaft of the door rollers and the swing axis of the elastic engaging member is substantially the same position in the moving direction of the sliding door The sliding door device according to claim 1 , wherein the sliding door device is disposed in sliding contact with the second rail . Said first rail for suspending the sliding door, in parallel with said first rail, said resilient locking member with integrally molded second rail sliding, the elastic locking member is a sliding door of the second rail sliding the door end side, the sliding door device according to claim 1 or 2, wherein ing removed over a predetermined length.

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