JPH0542556B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a guide roller rotatably provided on a link supporting a door, a rail for slidingly guiding the guide roller, and a guide roller provided on the rail to prevent movement of the guide roller. The present invention relates to a guide device for a sliding door having means.

[Conventional technology]

A guide device for a sliding door having a guide roller rotatably provided on a link supporting the door, a rail for slidingly guiding the guide roller, and a guide roller movement prevention means provided on the rail is disclosed in Utility Model Application Publication No. 58-35571, for example. It is known from the publication no. In the conventional sliding door guide device, as shown in FIG.
Two guide rollers 22 are rotatably provided on the rail 23, and the guide rollers 22 are slidably guided by a rail 23. An elastic body 24 is fixed to the rail 23, and a stopper 25 that can come into contact with the elastic body 24 is attached to the link 21. The link 21 slides with respect to the rail 23, the stopper 25 comes into contact with the elastic body 24, and after getting over the elastic body 24, it is stopped by the elastic body and the link 21 is restrained from moving in the opposite direction.

[Problem that the invention seeks to solve]

With conventional devices, as mentioned above, when the door is slid by the link and returned from the position controlled by the elastic body in the opposite direction, a large operating force is required to overcome the elastic body. .

[Means to solve problems]

The present invention solves the above-mentioned problems by means of a blocking means constituted by a stopper lever rotatably supported on a rail, and a stopper attached to a link and capable of locking with the stopper lever.

[Effect]

By locking a stopper attached to a link to a stopper lever rotatably supported by the rail, relative movement between the link and the rail is suppressed. When the stopper and the stopper lever are engaged, even if a large force is applied to the door, the door will resist that force. When the stopper lever is rotated from the outside, the lock with the stopper is released and the door can be moved lightly.

〔Example〕

The present invention will be described based on embodiments shown in detailed drawings.

In FIGS. 1 and 2, a guide roller 2 is rotatably supported by a shaft 3 on a link 1 that supports a door (not shown).

The guide roller 2 is guided by a rail 4 and rolls. A stopper lever 5 is rotatably supported on the rail 4 by a pin 6, and can be inserted into the movement path of the guide roller 2 through an opening 7 formed in the rail 4. The guide roller 2 acts as a stopper, and is directly engaged with the stopper lever to suppress its movement. When the stopper lever 5 is rotated and moved to the outside of the rail 4, the movement prevention against the guide roller 2 is released and the guide roller 2 can move freely.

A door (not shown) as shown in FIG.
Since the guide roller 2 is rotatably supported by the link 1 that supports the door, the door operates in the same direction as the rail 4 (horizontal direction in FIG. 2). Here, in the present application, when one set of guide rollers 2, 2 is located on the left side of the stopper lever 5 in FIG. If it is located on the right side of Figure 2, the door is in a closed state. That is, the left direction in FIG. 2 is the door opening direction, and the right direction in FIG. 2 is the door closing direction.

1 located on the right side of the stopper lever 5 in Figure 2
When the pair of guide rollers 2 and 2 are moved in the left direction in FIG. 2, that is, in the door opening direction, the shaft 3 of the guide roller
However, the stopper lever 5 pushed into the rail 4 is pushed toward the left in the figure against the biasing force of the biasing means 8, and the stopper lever 5 rotates counterclockwise and moves to the outside of the rail 4. Therefore, the door changes from the closed state to the open state.

1 located on the left side of the stopper lever 5 in Figure 2
When the pair of guide rollers 2 and 2 move to the right in the figure, that is, in the door closing direction, the shaft 3 of the guide roller 2 located on the right pushes the stopper lever 5 to the right in the figure, and the stopper lever 5 rotates clockwise to close the rail. It is locked to a part of 4. As a result, the guide roller 2 is prevented from moving in the right direction (door closing direction) by the stopper lever 5, and the door is maintained in the open state. In this state, when the stopper lever 5 is rotated counterclockwise using the operating member 9 or the like and moved to the outside of the rail 4, the movement prevention against the guide roller 2 is released and the guide roller 2 is free. It becomes movable and the door changes from the open state to the closed state.

The example shown in FIG. 3 differs from the example shown in FIG. 1 in that the link 1 having an L-shaped tip is located on the upper surface side of the rail 4. When the guide roller 2 is located on the right side of the stopper lever 5, the door is in an open state, and when the guide roller 2 is located on the left side of the stopper lever 5, the door is in a closed state. The stop lever 5 is
Forced counterclockwise by the urging force of the spring 8, a part of the stopper lever 5 comes into contact with the inner surface of the rail 4, and the stopper lever 5 limits movement of the guide roller 2 to the left when the door is open. When the guide roller 2 tries to move to the right when the door is closed and comes into contact with the stopper lever 5, the guide roller 2 rotates the stopper lever 5 clockwise against the biasing force of the spring 8.
It is possible to move the guide roller 2 to the right, that is, to open the door.

To change the door from the open state to the closed state, the stopper lever 5 is forcibly rotated clockwise by the operating member 9, and the guide roller 2 is moved to the stopper lever 5.
allows movement to the left.

In FIG. 4, a stopper lever 5 is rotatably supported on the upper part of the rail 4 by a pin 6, and the first
Unlike the examples shown in FIGS.
A stopper 10 that locks is fixed to the link 1 or to a slider 11 fixed to the link 1. In this modification, guide rollers are provided in the rail 4, although not explicitly shown, in the same way as in the previous example. In this example, when the link 1 is moved to the left in the figure, the stopper 10 rotates the stopper lever 5 and moves, but when the link 1 is moved to the right, the stopper lever 5 is locked to the stopper 10 and movement is prevented. . When the stopper lever 5 is rotated clockwise by hand or by the operation member 9 against the biasing force of the spring 8 to the unlocking position, the stopper 10 does not restrain the stopper lever 5 and the link 1 moves to the right. can also be moved freely.

〔Effect of the invention〕

According to the present invention, by providing a stopper lever and making it rotatable, the door can be easily moved back and forth, and furthermore, it is also possible to hold the door in a predetermined position and suppress its movement. When a guide roller is used as a stopper that comes into contact with the stopper lever, there is no need to provide a special stopper, which has the advantage of reducing the number of parts and making it easier to achieve accuracy.

When the guide roller engages with the stopper lever when the door is in the open state, the stopper lever is locked to a part of the rail and the guide roller is prevented from moving more than a predetermined amount in the door closing direction, so the stopper lever moves in the door closing direction. It becomes a reliable stopper for
The door remains open.

Furthermore, when the door moves from the fully closed state to the opening direction, the guide roller engages with the stopper lever, and as the guide roller moves, the stopper lever rotates and automatically moves out of the guide roller movement path. The device becomes more compact.

[Brief explanation of drawings]

FIG. 1 is an explanatory perspective view of the device according to the present invention, and FIG.
The figure is a cross-sectional view of the example shown in FIG. 1, FIG. 3 is an explanatory perspective view of a modification to the example shown in FIG. 1, FIG. 4 is a perspective view of a modification, and FIG. It is an explanatory perspective view. In the figure, 1... link, 2... guide roller, 4... rail, 5... stopper lever, 8... spring, 9... operating member.

Claims (1)

[Scope of Claims] 1. A sliding door having a guide roller rotatably provided on a link supporting the door, a rail for slidingly guiding the guide roller, and a guide roller movement prevention means provided on the rail. In the guide device, the blocking means is rotatably supported by the rail and engages with the guide roller when the door is moved from the fully closed state to the opening direction, so that the blocking means engages with the guide roller according to the movement of the guide roller. When the guide roller is automatically moved out of the movement path and engaged with the guide roller when the door is open, it is stopped by a part of the rail and the guide roller is moved to a predetermined position in the door closing direction. a stopper lever for preventing the above movement; a biasing means for pushing the stopper lever into the movement path of the guide roller; and a displacement of the stopper lever out of the movement path of the guide roller against the urging force of the urging means. A guide device for a sliding door, characterized in that it has an operation means for causing the sliding door to move.