JP3031653B2 - Sliding door stop device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door stop device which is opened and closed along a rail provided on a wall surface.

[0002]

2. Description of the Related Art FIG. 10A is an overall schematic view of a sliding door, and FIGS. 10B, 11A and 11B show conventional sliding door stopping devices, respectively. As shown in FIG. 10A, two sliding doors 100 are provided on the sliding door 10, and the sliding door 100 is mounted on a rail 120 of the wall surface 30. The sliding door 10 opens and closes smoothly in the directions of arrows 90 and 91 as the door roller 100 rotates on the rail 120.

After the sliding door 10 is opened in the direction of arrow 90,
The sliding door 10 automatically closes in the direction of the arrow 91. As the mechanism of the automatic closing, for example, the rail 1
In some cases, the sliding door 20 is tilted in the closing direction and is automatically closed by the weight of the sliding door 10. As another mechanism, there is a mechanism in which a returning force is applied in the direction of arrow 91 by a closer (not shown) using a spring or the like, and the sliding door 10 is automatically closed. By the automatic closing by such a mechanism,
The labor of closing the sliding door 10 manually can be omitted.

In some cases, it is desired to open the sliding door 10 in the direction of arrow 90 and stop it at a desired position. A first conventional example of a mechanism for stopping the sliding door 10 halfway (Japanese Unexamined Patent Publication No.
176983) is shown in FIG. 10B. FIG. 10B shows the sliding door 10.
FIG. 2 is a cross-sectional view of a door roller provided in the vehicle.

The door axle 101 J
(FIG. 10A), and the car unit 101 rotates around the door axle 101J. Press pins 105 and 106 are provided at three places in the car unit 101, respectively.
These are pressed inward by the elastic belt 107. Further, a need bearing 104 is located between the pressing pins 105 and 106 and the door axle 101J. The need bearing 104 includes pressing pins 105, 10
6, and is configured to press the door axle 101J.

For example, when the sliding door 10 is opened in the direction of arrow 90, the car 101 runs on the rail 120 while rotating in the direction of arrow 92. When the car unit 101 rotates in the direction of the arrow 92, the need bearing 104 comes into contact with one of the pressing pins 105. When the sliding door 10 is stopped at a desired position, the need bearing 104
Returns from the state shown in FIG. 10B to substantially the center of the pressing pins 105 and 106, and presses the door wheel axle 101J.

As described above, when the sliding door 10 is stopped at a desired position, the three need bearings 104 are mounted on the vehicle 1.
01 and presses the door wheel shaft 101J to fix the door wheel so as not to rotate. Thereby, the sliding door 10 stops at that position. When closing the sliding door 10 from the stopped state, a force is applied in the direction of the arrow 91. Then, the needle bearing 104 comes into contact with the pressing pin 106 side, and the fixing of the door shaft 101J is released, and the sliding door 10 can be closed.

[0008] A second conventional example of a sliding door stop device (Japanese Utility Model Laid-Open No. 4-41)
71) is shown in FIG. 11A. The stopping means 200 is attached to the bracket 205 of the sliding door 10 together with the door roller 100. The stopping means 200 is rotatable about a stopping means shaft 200J, and a stop roller 201 is provided at the tip. The stop means 200 has a built-in spring, and the stop roller 201 presses the rail 120 in the direction of arrow 94 by the spring.

FIG. 11A shows a state in which the sliding door 10 is opened in the direction of arrow 90. That is, the sliding door 10
With the movement of the sliding door 10 in the direction of arrow 90, the stopping means 200 is inclined in the direction opposite to the direction of movement of the sliding door 10 (direction of arrow 91). Then, when the sliding door 10 is stopped at a desired position, the automatic closing force of the sliding door 10 acts in the direction of arrow 91,
The stop roller 201 acts as a brake, and the stopped state of the sliding door 10 is maintained.

When closing the sliding door 10 from this stopped state, a force is applied to the sliding door 10 in the direction of arrow 91. Then, the spring in the stopping means 200 is compressed, and the stopping means 200 rotates in the direction of arrow 93 around the stopping means shaft 200J, and the stopping means 200 is inclined in the opposite direction (not shown). When the stopping means 200 rotates in the reverse direction, the brake is released, and thereafter the sliding door 10 is closed in the direction of the arrow 91 by the automatic closing force.

FIG. 11B shows a third conventional example of the sliding door stopping device (Japanese Patent Laid-Open No. 3-286080). FIG. 11B shows the wall surface 30,
It is a top view of the sliding door 10 etc., and the space 30S is the wall surface 30.
And a gap between the sliding door 10. A supporting shaft 300 is provided inside the sliding door 10, and a manual operation unit 301 is fixed below the supporting shaft 300. Manual operation unit 301
Project from the sliding door 10. FIG. 10A shows the manual operation unit 3.
01 shows a protruding position 301H.

A friction member 302 formed of an elastic member is fixed to an upper end of the support shaft 300. When the sliding door 10 is opened and stopped at a desired position, the manual operation unit 301 is turned in the direction of the arrow 95. This support shaft 300 also rotates with the friction member 302 as shown in FIG. 11 C fixes the stop position of the sliding door 10 against the wall 30. FIG. 10A shows a fixed position 302H by the friction member 302.

[0013]

The conventional sliding door stopping device has the following problems. First, in the first conventional example shown in FIG. 10B, when the sliding door 10 is stopped at any position, the needle bearing 104 is always moved to the door axle 101.
J is pressed, and the sliding door 10 stops at that position. In addition, the second conventional example shown in FIG.
When the sliding door 10 is stopped, the stop roller 201 of the stopping means 200 always functions as a brake, and the stopped state of the sliding door 10 is maintained.

For this reason, even if it is desired to open the sliding door 10 once in the direction of arrow 90 and immediately close it, there is a disadvantage that the sliding door 10 stops at the open position. To close the sliding door 10, a force must be applied in the direction of the arrow 91, which is troublesome. On the other hand, FIG.
In the third conventional example shown in FIG. 11, when the sliding door 10 is opened and closed, the friction member 302 is not in contact with the wall surface 30 (FIG. 11).
B). For this reason, even if the sliding door 10 is opened, the sliding door 10 automatically closes due to the returning force in the direction of the arrow 91 by the closer or the like, and the problems as in the first and second conventional examples do not occur.

However, in the third conventional example, the sliding door 10
Is stopped, the manual operation unit 301 must be rotated in the direction of the arrow 95, and there is a problem that the operation of stopping the sliding door 10 is troublesome. The manual operation unit 301
This is inconvenient for those who do not know the stop operation due to the manual operation, and there is also a problem that the appearance of the sliding door is impaired because the manual operation unit 301 protrudes from the sliding door 10.

Accordingly, the present invention provides a sliding door stop device which does not require any special operation, and maintains the stopped state of the sliding door as required, or automatically closes the sliding door and does not impair the appearance of the sliding door. For the purpose of providing.

[0017]

According to a first aspect of the present invention, there is provided a sliding door stopping device having a rotating portion which opens or closes along a rail provided on a wall surface and is interlocked with the opening or closing operation. In a sliding door stop device for a sliding door that automatically moves in a closing direction from an open position, a stop arm disposed on a reference line passing through the center of the rotating part and one point on an outer peripheral surface, One end of the center reciprocates on the reference line, and the other movable end reciprocates in both directions sandwiching the reference line in contact with the outer peripheral surface of the rotating part. The urging portion for urging in the direction approaching, the stopping arm is pressed against the outer peripheral surface of the rotating portion, the movable other end of the stopping arm is positioned on the reference line, and the rotation of the rotating portion is stopped for a predetermined time. When the rotating force is Pressing unit that holds the stopped state, it is characterized by comprising a.

According to a second aspect of the present invention, there is provided the sliding door stopping device according to the first aspect, further comprising an adjusting portion for adjusting the pressing force of the pressing portion.

According to a third aspect of the present invention, there is provided the sliding door stopping device according to the second aspect, wherein the adjusting portion includes a screw portion for adjusting the pressing force of the pressing portion, and the screw portion includes the screw portion. It is characterized in that the center line is disposed so as to be substantially perpendicular to the pressing direction of the pressing portion.

[0020]

In the sliding door stopping device of the first aspect, the stopping arm is disposed on a reference line passing through the center of the rotating portion and one point on the outer peripheral surface. One end of the center of the stopping arm reciprocates on the reference line, and the other movable end of the stopping arm reciprocates on both sides of the reference line in contact with the outer peripheral surface of the rotating unit.

The other end of the movable arm of the stopping arm is urged by an urging portion in a direction approaching the reference line. Further, the pressing portion presses the stopping arm against the outer peripheral surface of the rotating portion, and when the movable other end of the stopping arm is positioned on the reference line and the rotation of the rotating portion is stopped for a predetermined time, this pressing portion is pressed. The stopped state of the rotating unit is maintained by the pressure.

Therefore, if a force is applied in the direction to open the sliding door and the sliding door is stopped at a desired position for a predetermined time, the stopped state of the rotating part is maintained by the pressing of the stop arm, and the sliding door stops at that position. On the other hand, if the force for opening the sliding door is immediately released without stopping for a predetermined period of time, the movable other end of the stopping arm deviates from the reference line due to the moving force of the sliding door to automatically close, and the rotating part Becomes rotatable and the sliding door closes automatically.

In the sliding door stopping device of the second aspect, an adjusting portion for adjusting the pressing force of the pressing portion is provided.

Therefore, it is possible to freely adjust and control the pressing force of the stopping arm against the outer peripheral surface of the rotating section.

According to the third aspect of the present invention, the adjusting unit has a screw portion for adjusting the pressing force of the pressing portion. And this screw part is arrange | positioned so that the screw center line may be located substantially perpendicularly with respect to the press direction of a press part.

Therefore, the pressing force of the pressing portion can be adjusted by operating the screw portion from a direction different from the pressing direction of the pressing portion.

[0027]

【Example】

[First Embodiment] An embodiment of a sliding door stopping device according to the present invention will be described with reference to the drawings. FIG. 1 is an overall schematic diagram of a sliding door 10, a sliding door stopping device 8, and the like. Door rollers 2, 3 are attached to door roller attachments 52, 53 fixed to the sliding door 10, respectively. The door rollers 2 and 3 are mounted on a rail 5 provided on a wall surface 30, and when the door rollers 2 and 3 roll, the sliding door 10 opens (in the direction of arrow 90) or closes (in the direction of arrow 91) along the rail 5. ).

One end of the timing belt 4 is fixed to the belt fixing member 55 of the door roller mounting member 53, and the other end of the timing belt 4 is fixed to the belt fixing member 54 of the door roller mounting member 52. As shown in the figure, the timing belt 4 is hung on a sliding door closer rotating unit 7 and a driven pulley 6. The sliding door closer rotation unit 7 and the driven pulley 6 are attached to the wall surface 30 and are located at both ends of the rail 5. Note that a sufficient tension of the timing belt 4 can be secured by the screw mechanism of the belt fixing device 54.

When the sliding door 10 is opened in the direction of the arrow 90,
The timing belt 4 rotates the sliding door closer rotation unit 7 and the driven pulley 6 in the direction of the arrow 96. Then, when the force on the sliding door 10 is released, the sliding door closer rotating unit 7 reversely returns in the direction of arrow 97 by the spring mechanism of the sliding door closer and automatically closes the sliding door 10 (direction of arrow 91).
Let it.

In the present embodiment, the driven pulley 6 is a rotating part, and the driven pulley 6 is provided with a sliding door stopping device 8. The rotation of the driven pulley 6 is restricted by the pressurizing operation of the stopper arm 9 as the stopping arm of the sliding door stopping device 8, and the stop control of the sliding door 10 is performed.
FIG. 2 shows details of the driven pulley 6 and the sliding door stopping device 8. 2A is a front view, and FIG. 2B is a bottom view.

A slider 50 movable in the directions of arrows 90 and 91 is accommodated in the sliding door stopping device 8, and the slider 50 is pressed in the direction of arrow 91 by the compression spring 13 which is a pressing portion. The pressing force of the compression spring 13 can be adjusted by an adjusting screw 14 as an adjusting unit.

A stopper arm shaft 9J is provided in the slider 50 as one end of the center, and the stopper arm 9 is rotatably supported. The stopper arm shaft 9J is inserted into a guide hole 8a (see FIG. 1) formed in the sliding door stopper 8 in a long hole shape. The stopper arm shaft 9J is disposed on a reference line L1 passing through the center of the driven pulley shaft 6J and a point P1 on the outer periphery of the driven pulley 6. That is, the stopper arm shaft 9J can reciprocate on the reference line L1 within the range of the guide hole 8a (FIG. 1) by the sliding movement of the slider 50.

A fixing pin F1 is provided in the slider 50.
Is provided, and the arm pin F of the stopper arm 9 is provided.
2, a tension spring 12 as a biasing portion is provided. The fixing pin F1 in this slider 50 is also
1, the stopper arm 9 that rotates
Is urged in a direction approaching the reference line L1. As shown in the figure, the arm tip 9H is always in contact with the timing belt 4 on the outer peripheral surface of the driven pulley 6 by the urging force of the tension spring 12.

According to the sliding door stopping device 8, the sliding door 10 is automatically closed or the stopped state of the sliding door 10 is maintained by the natural opening and closing operation of the opening and closing person. Hereinafter, a case where the sliding door 10 is automatically closed and the stopped state of the sliding door 10 is maintained will be described.

(1) When the Sliding Door 10 Automatically Closes The opener applies a force to the sliding door 10 in the direction of arrow 90 (FIG. 1) to open it. In this case, as the timing belt 4 moves, the driven pulley 6 rotates in the direction of arrow 96, and the arm tip 9H of the stopper arm 9 is flipped up by the timing belt 4 as shown in FIG. 2A.

After the opening and closing of the sliding door 10 to the desired position, the operator immediately releases the force on the sliding door 10.
Then, the sliding door 10 automatically closes in the direction of arrow 91 (FIG. 1) by the sliding door closer, and the driven pulley 6 reverses in the direction of arrow 97 as the timing belt 4 moves.

Due to the rotation of the driven pulley 6 in the direction of arrow 97 and the urging force of the tension spring 12, the arm tip 9H of the stopper arm 9 is once positioned on the reference line L1 as shown in FIG. The driven pulley 6 is pulled down to the opposite side across the reference line L1 by the force of rotation. FIG. 3B shows a state in which the arm tip 9H is pulled down. When the arm tip 9H is located on the reference line L1 (FIG. 3A), the compression spring 13 is compressed, and the slider 50 retreats in the direction of the arrow 90 by the retreat width S1.

After the arm tip 9H is pulled down as shown in FIG. 3B, the sliding door closer automatically closes the sliding door 10 in the direction of arrow 91 (FIG. 1). in this way,
If the operator opens the sliding door 10 and immediately releases the force, the sliding door 10 is automatically closed.

(2) When the Stopped State of the Sliding Door 10 is Maintained When trying to maintain the stopped state of the sliding door 10, first, the opening and closing person opens the sliding door 10 in the direction of arrow 90 (FIG. 1), and the stopper arm 9 Is in the state shown in FIG. 2A in the same manner as described above. Then, after opening and closing the sliding door 10 to a desired position, the opening and closing person keeps the sliding door 10 in a stopped state for a predetermined time at that position. For example, the sliding door 10 is stopped at that position for about 1 to 2 seconds.

During this few seconds, the driven pulley 6 does not rotate, but the arm tip 9H of the stopper arm 9 is positioned on the reference line L1 by the urging force of the tension spring 12 (FIG. 3A). Thereafter, the opener releases the force on the sliding door 10. In this case, unlike the case where the force on the sliding door 10 is immediately released, the arm tip 9H is not pulled down as shown in FIG. 3B because there is no rotational force of the driven pulley 6, and the state shown in FIG. 3A is maintained. You.

That is, the slider 50 is pressed in the direction of arrow 91 by the compression spring 13 and the stopper arm 9
Arm 9H presses the driven pulley 6 and the timing belt 4 to stop the rotation of the driven pulley 6. Thereby, the stopped state of the sliding door 10 is maintained.

As described above, when the opening and closing person naturally stops the opening operation for 1-2 seconds in order to stop the sliding door 10 at a desired position, the sliding door 10 maintains the stopped state at that position. . Incidentally, if you want to close the sliding door 10 from the stopped state, the addition of a slight force in the arrow 91 direction of the arm tip portion 9H is pulled as shown in FIG. 3 B, thereafter automatically closed by sliding door closer.

(3) Adjustment of the compression spring 13 by the adjusting screw 14 As described above, the sliding door 10 is automatically closed or the stopped state of the sliding door 10 is maintained by the pressing force of the stopper arm 9 against the driven pulley 6. The pressing force of the stopper arm 9 can be adjusted by the adjusting screw 14 as described above, and the driven pulley 6 by the sliding door closer is used.
Fine adjustment can be made to the optimal pressing force for the rotational force of

Further, if the pressing force of the stopper arm 9 is increased, it is possible to adjust the sliding door 10 to stop at that position even if the operator releases the force immediately after the sliding door 10 is opened. Conversely, by adjusting the pressing force to be zero, it is possible to easily switch to a state without the sliding door stop device without removing the sliding door stop device.

[Second Embodiment] FIG. 4 shows a second embodiment. In this embodiment, the stop-only roller 60 functions as a rotating unit. The stop-only roller 60 is fixed to the driven pulley 6 as shown in the figure, and rotates integrally with the driven pulley 6. Then, the stopper arm 9 of the sliding door stopping device 8 is attached to the stop-only roller 60.
The stop control of the sliding door 10 is performed by stopping the rotation of the stop-only roller 60.
The structure and operation of the sliding door stopping device 8 are the same as those of the first embodiment.

[Third Embodiment] FIG. 5 shows a third embodiment. In this embodiment, the sliding door closer rotating unit 7 functions as a rotating unit, and the sliding door closer rotating unit 7 is provided with a sliding door stopping device 8. That is, the stopper arm 9 of the sliding door stopping device 8 is in contact with the sliding door closer rotating unit 7, and the stop control of the sliding door 10 is performed by stopping the rotation of the sliding door closer rotating unit 7. The structure and operation of the sliding door stopping device 8 are the same as those of the first embodiment.

[Fourth Embodiment] Subsequently, FIGS. 6, 7 and 8
A fourth embodiment of the sliding door stopping device according to the present invention will be described based on FIG. As shown in FIG. 6, the sliding door stopping device of this embodiment has a bevel gear mechanism so that the pressing force of the stopper arm 9 can be adjusted from below using, for example, a driver 89 or the like. In this embodiment, the pressing screw 80, the bevel gear 81, and the adjusting bevel gear 82 constitute an adjusting unit.

FIG. 7 shows details of the sliding door stopping device. 7A is a front view, and FIG. 7B is a bottom view. FIG.
As shown in A, a bevel gear 81 is rotatably provided at the rear end of the sliding door stopping device 8. A screw hole is formed at the center of the bevel gear 81, and the pressing screw 80
Is screwed and penetrated. The distal end of the pressing screw 80 that has penetrated the bevel gear 81 further penetrates the rear end wall 8E of the sliding door stopping device 8, and presses the compression spring 13 similarly to the adjusting screw 14 (see FIG. 2). FIG. 8A shows a view of the sliding door stopping device 8 as viewed from the rear end.

FIG. 8B shows the pressing screw 80. The screw portion 80a of the pressing screw 80 is a portion that is screwed into the screw hole of the bevel gear 81, and the screw tip 80b is a portion that penetrates the rear end wall 8E of the sliding door stopping device 8. FIG. 8C is a view of the pressing screw 80 viewed from the front end direction. As shown in FIG. 8C, the screw tip 80b of the pressing screw 80 has a flat shape.

On the other hand, the rear end wall 8 through which the screw tip 80b penetrates
The through hole of E is also formed according to the flat shape of the screw tip 80b. That is, the screw tip 80 of the pressing screw 80
The pressing screw 80 does not rotate because the through hole of the rear end wall 8E is formed in a flat shape. Therefore, when the bevel gear 81 rotates,
In response to the rotation of the bevel gear 81, the pressing screw 80 is turned into an arrow 9
It will move in the 0 and 91 directions.

As shown in FIG. 7, an adjustment bevel gear 82 as a screw portion meshes with the bevel gear 81. The adjustment bevel gear 82 is rotatably held through the mounting bracket 83 and is prevented from falling off by a retaining ring 82R. A groove 8 is provided at the tip of the adjustment bevel gear 82.
2K is formed, and can be rotated using a driver 89 or the like (FIG. 6). In addition, the adjustment bevel gear 8
The center line L2 of the second screw is located substantially perpendicular to the pressing direction L3 of the compression spring 13.

When the adjustment bevel gear 82 is rotated, this rotational force is transmitted to the bevel gear 81. And bevel gear 8
According to one rotation, the pressing screw 80 moves in the directions of the arrows 90 and 91 as described above. Thus, by adjusting the rotation direction and the amount of rotation of the adjustment bevel gear 82,
The pressing force of the stopper arm 9 against the driven pulley 6 can be controlled by freely moving the pressing screw 80.

As described above, in this embodiment, the pressing force of the stopper arm 9 can be adjusted by rotating the adjustment bevel gear 82 from below (see FIG. 6).
For example, in the sliding door stop device of the first embodiment (FIG. 1), the second embodiment (FIG. 4), and the third embodiment (FIG. 5), when adjusting the pressing force of the stopper arm 9, the adjusting screw is used. 14
Needs to be rotated from the side. In this case, depending on the installation state of the sliding door stopping device, a wall surface, a pillar, a vertical frame, or the like may become an obstacle, and it may be difficult to rotate the adjustment screw 14 with a driver or the like. In addition, when the sliding door 10 is large, the sliding door stopping device itself is provided at a high position, so that it is necessary to adjust the adjusting screw 14 on a table.

On the other hand, according to the sliding door stopping device of this embodiment, since the adjustment bevel gear 82 can be rotated from below, the wall surface, the column, the vertical frame, and the like do not become obstacles, and are long. If a driver or the like is used, there is no need to perform adjustment work on a table. Sliding door stopping device 8 shown in this embodiment
Other structures and operations are the same as those described in the first embodiment (FIG. 1).

In this embodiment, the center line L2 of the screw of the adjusting bevel gear 82 and the pressing direction L3 of the compression spring 13
Are arranged so as to be located almost vertically. However, the adjusting bevel gear 82 is not necessarily required to be vertical, and the adjusting bevel gear 82 may be provided at an angle at which the rotation of the adjusting bevel gear 82 can be most easily performed according to the installation state of the sliding door stopping device.

[Fifth Embodiment] Next, FIG. 9 shows a fifth embodiment of the sliding door stopping device according to the present invention. In this embodiment, the sliding door stopping device 8 itself is provided below the driven pulley 6. For this reason, the adjusting screw 14 is also positioned downward, and the pressing force of the stopper arm 9 can be adjusted by rotating the adjusting screw 14 from below as in the fourth embodiment. The structure and operation of the sliding door stopping device 8 are the same as those of the sliding door stopping device 8 described in the first embodiment (FIG. 1).
Is the same as

The sliding door stopping device 8 may be provided below the stop-only roller 60 shown in the second embodiment (FIG. 4), and the sliding door closer rotating unit shown in the third embodiment (FIG. 5) may be provided. A sliding door stopping device 8 may be provided below 7.

[Other Embodiments] In addition to the above embodiments,
It is also possible to provide the sliding door stopping device 8 for the door roller 2 or the door roller 3 (see FIG. 1). Further, a stopper arm 9 as a stop arm and a tension spring 1 as an urging portion are provided.
2. The compression spring 13 as the pressing portion is not limited to the above structure, and may be any one that stops the sliding door 10 and automatically closes or maintains the stopped state of the sliding door 10 according to a natural opening / closing operation of the opening / closing person. Other structures may be used. Furthermore, in each of the above embodiments, the sliding door 10 is automatically closed by the sliding door closer. However, the sliding door 10 may be automatically closed by, for example, inclining the rail 5.

[0059]

According to the first aspect of the present invention, in the sliding door stopping device,
The stopping arm is arranged on a reference line passing through the center of the rotating part and one point on the outer peripheral surface. One end of the center of the stopping arm reciprocates on the reference line, and the other movable end of the stopping arm reciprocates on both sides of the reference line in contact with the outer peripheral surface of the rotating unit.

The other end of the movable arm of the stop arm is urged by an urging portion in a direction approaching the reference line. Further, the pressing portion presses the stopping arm against the outer peripheral surface of the rotating portion, and when the movable other end of the stopping arm is positioned on the reference line and the rotation of the rotating portion is stopped for a predetermined time, this pressing portion is pressed. The stopped state of the rotating unit is maintained by the pressure.

That is, when a force is applied in a direction to open the sliding door and the sliding door is stopped at a desired position for a predetermined time, the stopped state of the rotating unit is maintained by pressing the stop arm, and the sliding door stops at that position. On the other hand, if the force for opening the sliding door is immediately released without stopping for a predetermined period of time, the movable other end of the stopping arm deviates from the reference line due to the moving force of the sliding door to automatically close, and the rotating part Becomes rotatable and the sliding door closes automatically. After opening the sliding door in this way, if stopped for a predetermined time, the stopped state of the sliding door is maintained,
If not stopped for a predetermined time, the sliding door will automatically close. Therefore, no special operation is required, and the stopped state of the sliding door is maintained or the sliding door is automatically closed by a natural opening / closing operation of the opening / closing person. Further, a manual operation unit for the stop operation is not required, and the appearance of the sliding door is not impaired.

In the sliding door stopping device according to the second aspect, an adjusting portion for adjusting the pressing force of the pressing portion is provided. That is, it is possible to freely adjust and control the pressing force of the stopping arm against the outer peripheral surface of the rotating unit.

Therefore, by adjusting the pressing force, it is possible to control the sliding door, which has been stopped for a predetermined time, more reliably to keep the stopped state. Further, for example, even when the force for opening the sliding door is immediately released after the sliding door is opened, it is possible to control the opening state to be maintained. Conversely, by adjusting the pressing force to be zero, it is possible to easily switch to a state without the sliding door stop device without removing the sliding door stop device.

According to the third aspect of the present invention, the adjusting portion has a screw portion for adjusting the pressing force of the pressing portion. And this screw part is arrange | positioned so that the screw center line may be located substantially perpendicularly with respect to the press direction of a press part. That is, the pressing force of the pressing portion can be adjusted by operating the screw portion from a direction different from the pressing direction of the pressing portion.

Therefore, it is possible to arrange the screw portion of the adjusting portion in accordance with the installation state of the sliding door stopping device. For example, when the stopping device is installed above the sliding door, the screw portion can be arranged downward. Thus, the screw portion can be easily operated, and the adjustment of the pressing force of the pressing portion can be easily performed.

[Brief description of the drawings]

FIG. 1 is an overall schematic view showing an embodiment of a sliding door stopping device according to the present invention.

FIG. 2 is a partial front sectional view of the sliding door stopping device shown in FIG. 1;
FIG.

FIG. 3 is a partial front sectional view of the sliding door stopping device shown in FIG. 1;

FIG. 4 is a partially sectional bottom view showing a second embodiment of the sliding door stopping device according to the present invention.

FIG. 5 is a front view showing a third embodiment of the sliding door stopping device according to the present invention.

FIG. 6 is an overall schematic diagram showing a fourth embodiment of a sliding door stopping device according to the present invention.

FIG. 7 is a partial front sectional view of the sliding door stopping device shown in FIG. 6;
FIG.

8 is a side view of the sliding door stopping device shown in FIG. 6 and a diagram showing details of a pressing screw.

FIG. 9 is an overall schematic view showing a fifth embodiment of the sliding door stopping device according to the present invention.

FIG. 10 is an overall schematic view of a sliding door and a view showing a first conventional example of a sliding door stopping device.

FIG. 11 is a diagram showing a second conventional example and a third conventional example of a sliding door stop device.

[Explanation of symbols]

 2, 3, ... door car 4 ... timing belt 5 ... rail 6 ... driven pulley 7 ... sliding door closer rotating part 9 ... stopper arm 9J ····· Stopper arm shaft 9H ······································································ Adjustment screw 60 ····· Dedicated stop roller 80 ···· Press screw 81 ··· Bevel gear 82 ··· Adjustable bevel gear L1 ···· Reference line L2 ···· Thread center line L3 ... Pressing direction

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05C 17/60-17/64 E05F 5/00

Claims (3)

(57) [Claims] 1. A sliding door that opens or closes along a rail provided on a wall surface, has a rotating portion that is linked in accordance with an opening operation or a closing operation, and automatically moves in a closing direction from an opening position. A stop arm disposed on a reference line passing through the center of the rotating portion and one point on the outer peripheral surface, wherein one end of the center reciprocates on the reference line, and the other end of the movable arm. A stop arm reciprocating in both directions sandwiching the reference line while being in contact with the outer peripheral surface of the rotating portion; a biasing portion for biasing the other movable end of the stop arm toward the reference line; a stop arm Is pressed against the outer peripheral surface of the rotating unit, and the movable other end of the stopping arm is positioned on the reference line, and when the rotation of the rotating unit is stopped for a predetermined time, the stopped state of the rotating unit is held by the pressing force. Having a pressing portion Sliding door stopping device according to claim. 2. The sliding door stopping device according to claim 1, further comprising an adjusting portion for adjusting a pressing force of the pressing portion. 3. The sliding door stopping device according to claim 2, wherein the adjusting portion includes a screw portion for adjusting the pressing force of the pressing portion, and the screw center line of the adjusting portion has a screw center line in a pressing direction of the pressing portion. A sliding door stop device, which is disposed so as to be located substantially perpendicular to the sliding door.