JP3371287B2 - Free stop device for door - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a sliding door, a folding door,
A door free stopper device for supporting a door main body on a suspension vehicle traveling on a rail such as a balance door, which can stop the door at an arbitrary open position. is there.

[0002]

2. Description of the Related Art Various door opening / closing structures in which a suspension vehicle and a rail are combined are known. For example, in hospitals and homes for the elderly, a hanger-type sliding door closing system is used in which the door can be opened with a light force and the door can be silently closed automatically. And this kind of door, when people and things go in and out,
There is a case where a free stopper device that allows the door to be stopped at an arbitrary open position for convenience and that can be easily released is used, but the conventional free stopper device is used. Had a complicated structure and was difficult to obtain economically, and there were some that could not be used as an adjustable stop force or as a pulling type.

[0003]

The problems to be solved by the present invention are as follows.
As described above, in the door free stopper device in which the suspension vehicle and the rail are combined, the structure is simple and economically obtained,
It is an object of the present invention to provide a door free stopper device that can be used for both adjustment of stop force and pulling.

[0004]

According to the present invention, there is provided a door free stopper device which is openably and closably supported by a suspension vehicle traveling on a rail, one end of which is the rail.
A stop piece provided so as to be able to come into contact with the rail so as to rotate in a direction in which the stopper is inserted, and a pair of link plates rotatably connected by a connecting shaft and having the other end of the stop piece attached to the connecting shaft, It comprises a biasing means for biasing one of the link plates in the direction of the connecting shaft, and a rotatable direction changing plate whose one end is connected to the connecting shaft and whose tip comes into contact with the rail to rotate. The stop piece and the direction changing plate rotate in a direction that allows the door to move when moving in the opening direction of the door, and the stop piece does not easily fit in the rail when moving in the closing direction of the door. When the door is rotated in a direction to restrain the movement of the door and the stop piece is pushed in a direction to close the door beyond the restrained position, the stop piece moves in a direction away from the rail, and the direction changing plate comes into contact with the rail. Free stopper for doors, characterized in that it rotates in a closed state Location is provided, the problems are solved.

Further, according to the present invention, the ends of the stop piece and the direction changing plate are formed in an arc surface, and the urging means is a spring provided to adjust the urging force by an adjusting screw. The above-mentioned problem is solved by providing the above-mentioned door free stopper device in which mounting plates are provided on both sides so that the device can be mounted by changing the direction in any direction.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention can be appropriately applied to sliding doors, folding doors, balance doors, etc., which are opened and closed by a combination of a suspension vehicle and a rail, but in the figure, a sliding door closing system is shown. An example to which the present invention is applied will be described.

As shown in FIG. 1, a suspension vehicle (2), (2) is provided above the door (1), and the door can be opened and closed by running the suspension vehicle on a rail (3). Held in. A self-closing unit (4) incorporating a winding spring (not shown) is fixed to the upper frame of the door, and the winding wire (5) of the self-closing unit (4) is attached to the door (1). And pulls the door (1) in a direction to always close it.

An appropriate portion of the door facing the rail (3), as shown in FIG. 1 (B), the suspension vehicle (2).
A body (8) having mounting plates (7), (7) fixed to the mounting frame (6) is provided. The mounting plates (7), (7)
Are provided facing each other on both sides of the body (8),
The mounting direction can be changed depending on which mounting plate is fixed to the mounting frame, which makes it possible to handle right-handed or left-handed sliding doors.

FIG. 2 shows the main body, which is formed in a case shape, and one end of which can be brought into contact with the rail so as to rotate in a direction in which the rail (3) is easily inserted. Is provided with a stop piece (9). The base end of the stop piece (9) is pivotally attached to a connecting shaft (11) described later, and the tip end (10) is shown in FIG.
As shown in (A), center (0) on the left side of the connecting shaft (11).
Has an arc surface formed by an eccentric cam where
Although it is urged by the (12) in the direction in which the rail (3) is difficult to be inserted, it can freely rotate in the opposite direction. The spring (12) can be omitted by rotating the stop piece (9) in the direction in which it is difficult to reach the rail due to its own weight, and an appropriate friction member can be attached to the tip (10). It can also be provided. The stop piece (9) rotates until it stops by hitting a stopper pin (13) provided in the main body.

A pair of link plates (14), (15) and a direction changing plate are attached to the connecting shaft (11) pivotally attached to the stop piece (9).
One end of (23) is rotatably connected. One of the link plates (14) has a pin (16) at the other end, and the pin (16) is fitted in a guide lateral groove (17) provided in a side plate of the main body so as to be slidable laterally in the figure. However, a pin may be provided on the side plate side of the main body, and a guide lateral groove with which the pin slidably engages may be provided on the link plate (14) side (not shown).

The link plate (14) is biased in the direction of the connecting shaft (11) by an appropriate biasing means. In the figure, the adjusting screw screwed on the pin (16) and the wall surface (18) of the main body.
A compression spring (20) is provided between (19) and is biased by the spring (20), but instead of the compression spring, a tension spring may be provided at an appropriate position to bias (not shown). ). The urging force of the urging means can be adjusted by adjusting the screwing amount of the adjusting screw (19), but may be adjusted by a cam mechanism or the like.

The other link plate (15) has a pin (21) at the other end, and the pin (21) is rotatably attached to the side plate of the main body (8). A guide vertical groove (22) formed in the direction changing plate (23) is fitted in the pin (21) so as to be vertically slidable in the figure.

The direction changing plates (23) are formed in a substantially L shape and are arranged side by side along the side surfaces of the link plates (15).
In the drawing of the direction changing plate (23), the upper piece (24) is superposed on the link plate (15), one end of which is attached to the connecting shaft (11), but the guide vertical groove (22) provided at the other end. The portion () is provided so as to be movable up and down along the pin (21) as described above. In the drawing of the direction changing plate (23), the lower piece (25) is biased downwardly by the center (C) of the pin (21) toward the stop piece (9) as shown in FIG. 2 (B). Extend the tip (26)
Is in contact with Le (3). The tip (26) is formed on an arc surface and is biased by a spring (27) so that the tip always contacts the rail (3). In addition, the direction changing plate (23) includes a spring (28).
Is pressed in the direction to the right in the figure, and the stopper pin
It is supported so that it can rotate until it stops by hitting (29), and that it can move up and down when it rotates.

Thus, when opening the door from the closed state of the door (1) as shown in FIG.
As shown in (A), the tip (10) of the stop piece (9)
Is composed of the eccentric cam as described above,
The arcuate apex is on the left side of the connecting axis (11). In this state, the stop piece (9) is urged to the right by the spring (12), so that the tip (10) is pressed against the rail (3). The direction changing plate (23) is in contact with the rail (3) while being inclined so that the tip (26) is located to the left of the central axis passing through the pin (21). The stop piece (9) and the direction changing plate (23) are respectively indicated by arrows (30) and (31).
It can rotate to the side against the springs (12), (28). Further, there is a connecting shaft (11) for pivotally mounting the stop piece (9) at a position lower than the pin (21) of the link plate (15) (direction changing plate) by a distance (a), and directed toward this lower position. Above link plate
The stop piece (9) is biased downward by the (14) and the spring (20) via the connecting shaft (11).

The direction of opening the door (1), that is, FIG.
When the door is moved in the direction of the arrow (32) shown in (A), the ends (10) and (26) of the stop piece (9) and the direction changing plate (23) are moved.
Since the arc-shaped vertices of are on the left side with respect to the connecting shaft (11) and the pin (21) which are the centers of rotation, respectively, the stop piece (9)
Also, the direction changing plate (23) rotates in the directions of the arrows (30) and (31), so that the door (1) can be easily opened.

When the opening of the door is stopped at an arbitrary position,
Since the door is pulled in the closing direction by the self-closing unit (4), a force in the direction of the arrow (33) in FIG. 2 (A) acts on the door (1). At this time, since the stop piece (9) and the direction changing plate (23) are urged downward by the springs (20) and (27), the stop piece (9) is pressed against the rail (3). , I try to rotate in the direction of the arrow (34),
Since the arc-shaped apex of the tip end (10) is located between the connecting shaft (11) and the rail (3), the apex prevents the rail (3) from easily turning into the door and prevents the door from moving. Restrain movement. In this way, the stop piece (9) acts as a brake and the door can be held at an arbitrary open position. In such a state, a component force in the direction of the arrow (37) acting upward is applied to the stop piece (9), and the stop piece (9) tries to move upward, but by the spring (20) that biases the link plate. Movement is blocked. This blocking force (holding force) can be changed by adjusting the biasing force of the spring (20) with the adjusting screw (19), and thereby the self-closing force by the self-closing unit (4) can be balanced. You can

In order to close the door from the above-mentioned arbitrary open-holding state, the door may be lightly pressed toward the closing side of the arrow (33). When a pressing force that overcomes the blocking force (holding force) is applied, the stop piece (9) moves over the dead point of the link plates (14), (15) by the component force in the direction of the arrow (37) ( b)
Only rises and its tip (10) moves away from the rail (3).
As a result, the open-door holding is released. At this time, the link plates (14), (15) assist the lifting of the stop piece (9) by the urging action of the spring (20) and hold the stop piece (9) in the raised position. The rotation of the stop piece (9)
It is stopped by hitting the stopper pin (13).

The direction changing plate (23) and the main body (8) are connected to each other.
A guide groove (22) fitted into the pin (21) so that the tip (26) is always in contact with the rail (3) even if there is a difference in distance from the rule (3).
Is vertically long, and can be moved up and down by being urged downward by a spring (27). Therefore, as the stop piece (9) rises, the direction changing plate (23) moves toward the spring (28).
Surely rotate in the direction of the arrow (35) with the stopper pin (2
It stops by hitting 9) and becomes the state of Fig. 2 (B). On this occasion,
Since the direction changing plate (23) is vertically movable along the guide vertical groove (22) in the figure, it does not exert a breaking action and the door (1) is closed by the self-closing force.

When the door is opened again from the closed state as described above, since the apex of the tip (26) of the direction changing plate (23) is offset from the center of rotation by (C) to the door opening side, It catches on the rail (3) and rotates in the direction of the arrow (31). As a result, the connecting shaft (11) descends in the direction of the arrow (38), the tip (10) of the stop piece (9) contacts the rail (3), and the stop piece (9) is further opened by the opening operation of the door. Is rotated by the eccentric cam in the direction of the arrow (30) to be reset to the state shown in FIG. 2 (A), and thereafter the same operation as described above can be performed.

[0020]

The present invention is constructed as described above, and the door can be held at an arbitrary open position by the stop piece, the link plate, the direction changing plate, etc., and the free structure is simple.
A stopper device is obtained, and the blocking force (holding force) of the door can be easily adjusted by adjusting a biasing means such as a spring that biases the link plate. If changed, it is possible to obtain a stopper device which can also be used as a pull hand.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (A) is a front view,
(B) is a plan view showing the relationship with the rail.

FIG. 2 shows the inside of the main body, (A) is a front view when the door is opened and is stopped at an arbitrary position, and (B) is a front view when the stop is released and the door is closed.

[Explanation of symbols]

1 door 3 rails 4 Self-closing unit 8 body 9 stop pieces 11 Connection shaft 14 and 15 link plates 19 Adjustment screw 20 springs 23 turn plate

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Claims (4)

(57) [Claims] 1. A free stopper device for a door, which is openably and closably supported by a suspension vehicle traveling on a rail, wherein the device has a rail for rotating in a direction in which the rail is hard to be inserted. And a pair of link plates rotatably connected by a connecting shaft and having the other end of the stop piece attached to the connecting shaft, and one of the link plates in the connecting shaft direction. It comprises an urging means for urging, and a rotatable direction changing plate whose one end is connected to the connecting shaft and whose tip comes into contact with the rail so as to rotate. The stop piece and the direction changing plate form a door. When it moves in the opening direction, it rotates in a direction that allows the movement of the door, and when it moves in the closing direction, the stop piece rotates in the direction in which the rail is locked and the movement of the door is restricted. When the door is pushed beyond the restraint position in the closing direction, the above stop piece Moves in a direction away from the rail, and the direction changing plate rotates in a state of being in contact with the rail. 2. The door free-stopper device according to claim 1, wherein the stop pieces and the tip ends of the direction changing plates are formed in an arc surface. 3. The door free stopper device according to claim 1, wherein the biasing means includes a spring, and the biasing force is adjustable by an adjusting screw that supports the spring. 4. The door free stopper device according to claim 1, wherein the main body of the apparatus has mounting plates on both sides so that the apparatus main body can be mounted on the door in different mounting directions.