JP2561536Y2 - Sliding door 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 apparatus provided with a sliding door closer having a drum containing a mainspring.

[0002]

2. Description of the Related Art FIG. 3 shows a sliding door device disclosed in Japanese Patent Application Laid-Open No. 2-256779. In this sliding door device, two door rollers C and D provided for a sliding door A are put on a suspension rail E attached to a door frame B, and the sliding door closer 1 is placed on one side of the door frame B in the closing direction. , A driven belt pulley 2 is provided, a timing belt 3 is hung around a sliding door closer 1 and a driven pulley 2, and both ends 3a, 3b of the belt are connected to the two door rollers C, D.
And a bolt 6 is connected to the belt end 3b on one side of the door opening direction, and the bolt 6 is attached to the metal fitting 5 attached to the main body of one of the door rollers D. A slack eliminating spring 7 is inserted around the bolt 6 and the nut 8 is screwed into the bolt 6 to compress and accumulate the slack eliminating spring 7 between the metal fitting 5 and the nut 8 to apply tension to the timing belt 3 and to adjust the timing. The belt 3 travels in conjunction with the opening operation of the sliding door A to accumulate the mainspring in the drum of the sliding door closer 1 and the drum is closed by the hydraulic pressure buffer circuit while being rotated by the hydraulic pressure buffer circuit, and the sliding door A is closed. It is configured to be. The closer mounting bracket 10 for attaching the sliding door closer 1 to the suspension rail E is provided with a tooth jump prevention roller 9 to maintain the timing belt 3 so as not to separate from the drum of the sliding door closer 1. The tooth skipping prevention roller 9 is closed by a hydraulic resistance even when an external force in the closing direction is applied to the sliding door A during the closing operation by the hydraulic control of the drum of the sliding door closer 1 at a predetermined closing speed. As a result of suppressing the door speed from increasing, the slack eliminating spring 7 is compressed, and the timing belt 3 is momentarily slackened by a length corresponding to the compression of the slack eliminating spring 7.
Is provided in order to avoid a problem called tooth skipping, which is shifted with respect to the teeth formed on the outer periphery of the drum of the sliding door closer 1.

[0003]

[Problem to be Solved by the Invention] Tooth skipping prevention roller 9
At the time of installation on site, the timing belt 3 is hung around the drum of the sliding door closer 1 and then screwed to the closer mounting bracket 10, which may be lost and requires a lot of work. Further, the closer mounting bracket 10 for mounting the sliding door closer 1 to the suspension rail E has a shape which can be used for the sliding door A which can be moved left and right, but has a complicated shape for mounting the tooth skipping prevention roller 9.

The present invention has been devised in view of the above points. Even if an external force is applied during the closing operation, the timing belt does not jump out of teeth. It is an object of the present invention to provide a sliding door device capable of reducing the number of operations and shortening the work, and capable of reducing the size of a closer mounting bracket.

[0005]

According to the first invention of the present application, two sliding doors C and D provided on a sliding door A are put on a suspension rail E attached to a door frame B, and sliding door closers are provided at both ends of the suspension rail E. 1 and a driven pulley 2, a timing belt 3 is hung around both of them, and both ends 3a and 3b of the belts are locked to the main bodies of the two door rollers C and D, and one of the belt ends 3a and 3b. The timing belt 3 is driven in conjunction with the opening operation of the sliding door A to accumulate the spring 1b in the drum 1a of the sliding door closer 1, and the drum 1a is hydraulically driven by the accumulated rotational force. In a sliding door device in which the sliding door A is closed by rotating the closed door while being braked by the buffer circuit, the sliding door closer 1 is arranged on one side in the opening direction, and the driven pulley 2 is arranged on one side in the closing direction. , The spring 7 for eliminating slackness There is provided a sliding door apparatus characterized by comprising the engaged are belt end 3a to the main body of the door rollers C on one side near the door direction.

In the second invention of the present application, two sliding doors C and D provided on a sliding door A are mounted on a suspension rail E attached to a door frame B, and a sliding door closer is provided on one side of the suspension rail E in the closing direction. 1
Are provided with driven pulleys 2 on one side in the door opening direction, respectively, and a timing belt 3 is hung on both of them to lock both ends 3a and 3b of the belts on the main body portions of the two door rollers C and D, respectively. Spring 7 for pulling the belt end
And the timing belt 3 is driven in conjunction with the opening operation of the sliding door A, and the mainspring 1b in the drum 1a of the sliding door closer 1 is provided.
In the sliding door device in which the drum 1a is closed and the sliding door A is closed while the drum 1a is braked by the hydraulic pressure buffer circuit by the stored rotational force, the slack eliminating spring 7 is moved closer to one side in the closing direction. A sliding door device provided with a belt end 3a locked to the main body of C.

Further, a third invention of the present application is a suspension rail E in which two door rollers C and D provided on a sliding door A are attached to a door frame B.
, A sliding door closer 1 and a driven pulley 2 are disposed at both ends of a suspension rail E, and a timing belt 3 is hung on both of them, and both ends 3a, 3b of the belt are attached to the main portions of the two door wheels C, D. And a bolt 6 is connected to one of the belt ends 3b. The bolt 6 is inserted into a metal fitting 5 attached to a main body of the door roller D, a slack eliminating spring 7 is wound around the bolt 6, and a nut 8 is screwed. In combination, the slack eliminating spring 7 is compressed and stored between the metal fitting 5 and the nut 8 to apply tension to the timing belt 3, and the timing belt 3 travels in conjunction with the opening operation of the sliding door A to drive the drum of the sliding door closer 1. In the sliding door device in which the spring 1b in the first spring 1a is energized and the drum 1a is closed by the hydraulic pressure buffer circuit while being rotated by the accumulated rotational force and the sliding door A is closed, the sliding door A is closed between the metal fitting 5 and the nut 8. Built-in loosening spring 7 There is provided a sliding door apparatus characterized in that a short tube 11 to so that.

[0008]

According to the first invention of the present application, the sliding door closer 1 and the driven pulley 2 are arranged in reverse to the conventional one, and the slack eliminating spring 7 is engaged with the belt end 3a which is locked to the main body of the door pulley C near the driven pulley 2. Therefore, the external force acting in the closing direction during the closing operation is transmitted to the slack eliminating spring 7 via the sliding door closer 1 and the driven pulley 2, and the tension of the timing belt 3 is secured, so that the timing Belt 3 does not jump.
In the second invention of the present application, the sliding door closer 1 and the driven pulley 2 have the same arrangement as the conventional one, but the slack eliminating spring 7 is provided at the belt end 3a which is locked to the main body of the door roller C near the sliding door closer 1. Therefore, the external force acting in the closing direction during the closing operation is transmitted to the slack eliminating spring 7 via the driven pulley 2 and the sliding door closer 1, and the compression dimension of the slack eliminating spring 7 is not changed, and the belt end is not changed. Since there is no slack on the side of 3a,
Even if an external force acts on the drum 1a of the sliding door closer 1 during the closing operation, the timing belt does not jump. In the third invention of the present application, the sliding door closer 1 and the driven pulley 2 have the same arrangement as before, but the short tube 11 is provided between the fitting 5 and the nut 8 so as to incorporate the spring 7 for loosening. Even if an external force is applied during the operation of the door, the external force is transmitted from the metal fitting 5 to the nut 8 so that the compression dimension of the slack eliminating spring 7 does not change and the belt end 3
Since the slack does not occur on the side a, the timing belt 3 does not jump.

[0009]

FIG. 1A shows a sliding door apparatus according to an embodiment of the first invention of the present application. In this sliding door device, two door rollers C and D provided at the upper end of a sliding door A are mounted on a suspension rail E attached to an upper side of a door frame B, and a sliding door closer 1 is provided on one side of the suspension rail E in the opening direction. Are provided with driven pulleys 2 on one side in the closing direction, respectively, and the timing belt 3 is connected to the sliding door closer 1.
And the belt end 3b of the timing belt 3 which is hung around the sliding door closer 1 is engaged with a metal fitting 4 attached to the main body of the door pulley D on the sliding door closer 1 side, and the other belt end 3a. Is fixed to a metal fitting 5 attached to the main body of the other door roller C, and a bolt 6 is connected to the belt end 3a on the side locked to the main body of the door roller C.
Is inserted into the metal fitting 5 attached to the main body of the door roller C, the slack eliminating spring 7 is wound around the bolt 6, the nut 8 is screwed, and the slack eliminating spring 7 is compressed and stored. When the door is opened, the drum 1a of the sliding door closer 1
Of the mainspring 1b is charged, and the drum 1a is closed by the hydraulic pressure buffer circuit while being braked by the stored rotational force of the mainspring 1b, and the timing belt 3 pulls the sliding door A in the closing direction. ing.

FIG. 2 shows the sliding door closer 1. When the drum 1a, which can be wound and rotated by the timing belt, is rotated in the opening direction, the sliding door closer 1 winds the spring 1b housed in the drum 1a and rotates the drum 1a in the closing direction. The piston 1f is rotatably accommodated in a cylinder chamber 1e formed in a housing 1d formed in a housing 1d for supporting a drive shaft 1c coaxially integrated with the drum 1a. When the drum 1a is closed by the biasing torque of the mainspring 1b, the liquid in the cylinder chamber 1e 'in the forward direction of the piston 1f is moved backward. Cylinder chamber 1 in the rear direction
A required hydraulic pressure buffer circuit is provided so that the flow rate moving to e "can be throttled and the return speed of the piston 1f can be slowed down.

Therefore, the external force acting in the door opening direction is
It is further transmitted to the nut 8 via the slack eliminating spring 7 and further transmitted to the timing belt 3, whereby the drum 1a of the sliding door closer 1 rotates and the internal spring 1b is charged. Release the sliding door A in the open state, and the spring 1 of the sliding door closer 1
The drum 1a rotates by the accumulating force of b, the timing belt 3 runs, and the sliding door A automatically closes. However, when an external force for closing the sliding door A acts on the sliding door A, the external force acting in the closing direction during the closing operation passes through the sliding door closer 1 and the driven pulley 2 and then acts on the slack eliminating spring 7. As a result, the tension of the timing belt 3 is secured without any change in the compression dimension of the slack eliminating spring 7, so that the timing belt 3 does not jump at the drum 1 a of the sliding door closer 1.

FIG. 1B shows a sliding door device according to an embodiment of the second invention of the present application. In this sliding door device, two door rollers C and D provided at the upper end of a sliding door A are put on a suspension rail E attached to an upper side of a door frame B, and a sliding door closer 1 is provided on one side of the suspension rail E in the closing direction. With the driven pulley 2 on one side
The timing belt 3 is hung around the sliding door closer 1 and the driven pulley 2, and a belt end 3 a of the timing belt 3, which is hung around the sliding door closer 1, is attached to the main body of the door roller C on the sliding door closer 1 side. The other end 3b of the door roller C is locked to the metal member 4 attached to the main body of the door roller D, and the door roller C closer to one side in the door closing direction.
A bolt 6 is connected to the belt end 3a locked to the main body of the door roller C, and the bolt 6 is inserted into the metal fitting 5 attached to the main body of the door roller C, and a slack eliminating spring 7 is wound around the bolt 6 and a nut is inserted. 8 is screwed, and the slack eliminating spring 7 is compressed and stored.
When the sliding door A is opened, the mainspring 1b in the drum 1a of the sliding door closer 1 accumulates in conjunction therewith, and the mainspring 1b is charged.
The drum 1a is closed while the hydraulic pressure damping circuit brakes the drum 1a due to the accumulated rotational force, and the timing belt 3 pulls the sliding door A in the closing direction.

Therefore, when the sliding door A automatically closes, when an external force for closing the sliding door A acts on the sliding door A, the external force passes through the driven pulley 2 and the sliding door closer 1 and then the slack eliminating spring. 7, the tension of the timing belt 3 is secured and no slack occurs on the side of the belt end 3a during the closing operation at the drum 1a of the sliding door closer 1. The timing belt does not jump even if an external force acts.

FIG. 1C shows a sliding door device according to an embodiment of the third invention of the present application. In this sliding door device, two door rollers C and D provided at the upper end of a sliding door A are put on a suspension rail E attached to an upper side of a door frame B, and a sliding door closer 1 is provided on one side of the suspension rail E in the closing direction. With the driven pulley 2 on one side
The timing belt 3 is hung around the sliding door closer 1 and the driven pulley 2, and a belt end 3 a of the timing belt 3, which is hung around the sliding door closer 1, is attached to the main body of the door roller C on the sliding door closer 1 side. At the same time, the bolt 6 is connected to the other belt end 3b, and the bolt 6 is inserted into the metal fitting 5 attached to the body of the other door roller D, and the slack eliminating spring 7 is attached to the bolt 6. The short tube 11 is fitted onto the outside of the winding tube, the nut 8 is screwed into the short tube 11, the spring 7 for loosening is compressed and stored in the short tube 11, and the sliding door closer 1 is moved in conjunction with the opening operation of the sliding door A. The mainspring 1 in the drum 1a
b, and the drum 1a is closed by the hydraulic pressure buffer circuit while being braked by the stored rotational force of the mainspring 1b, and the timing belt 3 pulls the sliding door A in the closing direction.

Therefore, when the sliding door A automatically closes, when an external force for closing the sliding door A acts on the sliding door A, the external force is transmitted from the metal fitting 5 to the nut 8 and the slack eliminating spring 7 is used.
No change in the compression size, the tension of the timing belt 3 is secured, and the belt end 3a does not loosen, so that the timing belt does not jump.

[0016]

As described above, according to the sliding door device of the first to third inventions of the present application, the timing belt does not jump even if an external force acts during the closing operation, and the tooth jump does not occur. The prevention roller is unnecessary, the number of parts, cost, and work can be reduced, and the mounting bracket for the closer 1 can be made compact.

[Brief description of the drawings]

FIG. 1A is a front view of a main part of a sliding door device according to an embodiment of the first invention of the present application, FIG. 1B is a front view of a main part of a sliding door device according to an embodiment of the second invention of the present invention, FIG. () Is a front view of a main part of the sliding door device according to the third embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a sliding door closer that can be used in the first to third inventions of the present application and the sliding door device according to the conventional example.

FIG. 3 is a front view of a main part of a sliding door device according to a conventional example.

[Explanation of symbols]

 A: Sliding door, B: Door frame, C: Door roller, D: Door roller, E: Hanging rail, 1: Sliding door closer, 1a: Drum, 1b: Spring , 2 ... driven pulley, 3 ... timing belt, 3a, 3b, belt end, 4 ... metal fitting, 5 ... metal fitting, 7 ... spring for slack elimination, 8 ... nut, 11 ... short pipe,

Claims (3)

(57) [Scope of request for utility model registration] 1. A sliding door provided on a sliding door is placed on a suspension rail attached to a door frame, and a sliding door closer and a driven pulley are disposed at both ends of the suspension rail. A spring is provided for locking both ends of the belt to the main body portions of the two door rollers, and a slack eliminating spring for pulling one of the belt ends.The timing belt runs in conjunction with the opening operation of the sliding door, and the spring in the drum of the sliding door closer. In the sliding door device, the sliding door is closed by rotating the door while the drum is braked by the hydraulic pressure buffer circuit by the stored rotational force, and the sliding door is closed, and the driven pulley is closed on one side in the opening direction. A sliding door device which is disposed on one side in a door direction and has the spring for eliminating slack provided on a belt end which is locked to a main body portion of a door roller closer to one side in a closing direction. 2. A sliding door provided with a sliding door is mounted on a suspension rail attached to a door frame, and a sliding door closer is provided on one side of the suspension rail in a closing direction, and a driven pulley is provided on one side of the opening direction of the suspension rail. A timing belt is hung on both of them, the both ends of the belt are locked to the main body of the two door rollers, and a slack eliminating spring for pulling one of the belt ends is provided. In the sliding door device in which the sliding door is closed while the drum is being braked by the hydraulic pressure buffer circuit by the stored rotational force and the sliding door is closed, the slack eliminating spring is operated by interlocking with and accumulating the spring in the drum of the sliding door closer. A sliding door device provided at a belt end locked to a main body of a door roller on one side in a closing direction. 3. A sliding door provided on a sliding door is mounted on a suspension rail attached to a door frame, and a sliding door closer and a driven pulley are disposed at both ends of the suspension rail, and a timing belt is wound around both of them. Both ends of the belt are locked to the main body of the two door rollers, and a bolt is connected to one end of the belt, the bolt is inserted into a metal fitting attached to the main body of the door roller, a spring for eliminating slack is wound around the bolt, and a nut is inserted. , And the tension eliminating spring is compressed and accumulated between the metal fitting and the nut to apply tension to the timing belt, and the timing belt is driven in conjunction with the opening operation of the sliding door to store the spring in the drum of the sliding door closer. In a sliding door device in which the sliding door is closed by rotating the door while the drum is being braked by the hydraulic pressure buffer circuit by the accumulating rotational force, the short pipe is provided so as to incorporate the slack eliminating spring between the metal fitting and the nut. To A sliding door device characterized by being provided.