JP2007107261A - Sliding door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door device having a braking device for reducing an air bleeding sound in braking while having a sufficient braking range in a narrow space. <P>SOLUTION: This tandem sliding door device 1 is divided into a front door 4 and a rear door 5, and is formed for opening and closing the front door 4 and the rear door 5 by interlocking by fixing the other end side proper place to a sliding door frame member 2 by a fixing metal fitting 23 by fixing one end side proper place fitted around a front interlocking pulley 21a of an interlocking strip body 22 to the front door 4 by a joining metal fitting 24 by fitting the interlocking strip body 22 around the front-rear interlocking pulleys 21a and 21b arranged in the rear door 5. The rear door 5 is provided with an abutting member 13 abutting on the braking device 10 absorbing a shock when closing a sliding door. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sliding door device, and more particularly, to a braking device for a double sliding door device configured to be divided into a front door and a rear door.

Conventionally, as the double sliding door device 40, as shown in FIG. 5, the sliding door frame member 2, the door pocket 3 formed on one side of the frame member 2, and the rear door 42 accommodated in the door pocket 3, Then, the front door 41 accommodated in the door 42, the front door 41a disposed on the front door 41, and the front and rear door wheels 42a and 42b disposed on the rear door 42 are mounted. In order to move the front door 41 and the rear door 42 in relation to each other, the sliding door frame is composed of the rail 6 and a traveling rail 42c on which the rear door 41b of the front door 41 is movably mounted in the rear door 42. An interlocking device 60 accommodated in the upper frame of the member 2 is disposed.
This interlocking device 60 is composed of front and rear interlocking pulleys 61 and 62 and an interlocking belt 63 that is engaged with both pulleys, and the interlocking belt 63 is fixed to an appropriate position of the front door 41 by a joining metal fitting 64. By fixing the sliding door frame member 2 at an appropriate position with the metal fitting 65, the transition distance of the rear door 42 is set to ½ of the transition distance of the front door 41.
And when changing from the open position of a sliding door to a closed position, the front door 41 collides with the door-end side vertical frame. At this time, if the front door is vigorously moved in the closing direction, an impact and noise are generated. Therefore, in this type of sliding door device 40, the braking device 50 is generally disposed on the sliding door frame member 2 and the front door 41. A contact member 53 attached in the vicinity of the rear door side bracket is brought into contact with the braking device 50 to buffer the impact and noise.
The braking device 50 includes a braking device 51 including an air cylinder and a hydraulic damper, a receiving member 52 disposed at a rod tip of the braking device 51, and an abutting member 53 that contacts the receiving member 52.
The receiving member 52 disposed at the tip of the rod of the braking device 51 and the abutting member 53 disposed at an appropriate position of the front end of the front door 41 are used when the sliding door is moved from the closed position to the opened position. In order for the piston rod to be pulled out of the cylinder body and extend the rod, either the tip of the piston rod and the sliding door part where the tip hits a magnet and the other a magnetic material, Or both are comprised as a magnet.

  Thus, when the sliding door is moved from the open position (FIG. 5 (a)) to the closed position (FIG. 5 (b)), if the traveling rail 6 is disposed at an inclination, the sliding door is caused by the inclination. The front door 41 and the rear door 42 are moved in the closing direction by the acceleration of gravity or in the case of a parallel rail by manual force, and when the front door 41 advances Lb from the open position toward the closing side, the front door 41 is moved. The abutting member 53 disposed on the abutting portion contacts the receiving member 52 disposed on the rod tip of the braking device 51, starts braking when the sliding door is closed, and slowly abuts on the door-end side vertical frame (for example, patent) Reference 1).

However, the braking device 50 configured as described above has a double sliding door structure, so that the mounting space is small, and the contact member 53 that contacts the receiving member 52 of the braking device 51 is disposed on the front door 41, so that braking is possible. Because the range becomes smaller, the braking start at the time of closing the sliding door may be immediately before the closing of the sliding door. In such a case, an accident such as being caught by the sliding door that closes vigorously may occur, and the front door with high moving speed When using an air cylinder as a braking device in order to brake the vehicle using a braking device with a large brakeable range, there is a problem that a large air bleeding noise is generated, and countermeasures are required to reduce this air bleeding noise. It was.
Japanese Patent No. 3536200

  In view of the problems of the interlocking device used in the conventional sliding door device, the present invention provides a sliding door device having a braking device that has a sufficient braking range in a narrow space and has a small air bleeding sound during braking. Objective.

  In order to achieve the above object, the sliding door device of the present invention is divided into a front door and a rear door, and the interlocking member is wound around the front and rear interlocking pulleys disposed on the rear door, and the interlocking member is engaged with the front interlocking pulley. A double sliding door device that fixes the appropriate position on the one end side to the front door with a joint fitting, and fixes the appropriate position on the other end side to the sliding door frame member with a fixing bracket so as to open and close the front door and the rear door in conjunction with each other. The sliding door device according to claim 1, wherein a contact member that contacts the braking device that absorbs an impact when the sliding door is closed is disposed on the rear door.

  According to the sliding door device of the present invention, the abutting member that abuts the braking device that absorbs the impact when the sliding door is closed is disposed on the rear door whose moving distance and moving speed are halved compared to the front door. Even if braking equipment with the same stroke is used, a braking range twice as large as that of the conventional one can be secured, and even when an air cylinder is used for the braking equipment, the movement speed of the rod of the air cylinder is half that of the conventional one. It is possible to provide a sliding door device with a small air bleeding sound.

  Embodiments of the sliding door device of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the sliding door device of the present invention. In the figure, a indicates an inspection window line, and b indicates a vertical line.
The sliding door device 1 includes a sliding door frame member 2, a door pocket 3 formed on one side of the frame member 2, a rear door 5 accommodated in the door pocket 3, and a front door 4 accommodated in the door 5 thereafter. And a traveling rail 6 on which front and rear door wheels 4a, 4b, 5a, 5b disposed on the front door 4 and the rear door 5 are placed.
In the illustrated example, a retractable sliding door device in which the front door 4 is housed in the rear door 5 when the sliding door is opened is shown. However, the double sliding door in which the front door 4 is not housed in the rear door 5 is shown. It can also be applied to devices.

The upper bone 5c of the rear door 5 is provided with a slit N that allows passage of the rear door bracket 7b on the upper door 4 on the upper surface, and a flange disposed on the door bottom side of the front door 4 on the side door tip side. 9 and the rear door carriage bracket 7b are fixed using fixing means B (hexagon socket head bolt or the like is preferable), and an opening portion M is provided for allowing the tool to enter.
As shown in FIG. 2, the width of the slit N is larger than the width of the rear door bracket 7 b, and the length is appropriately determined based on the length of the front door stored in the rear door and the front and rear door widths.
In addition, brackets 8a and 8b are rotatably attached to the upper surface of the upper bone 5c of the rear door 5 so that the front and rear door wheels placed on the traveling rail 6 are rotatably arranged.

  The front door 4 is provided with a bracket 7a for rotatably disposing a front door mounted on the traveling rail 6 on the door end side, and a flange 9 for fixing the rear door bracket 7b on the door bottom side. Arrange. The flange 9 is provided with a screw hole 9a for fixing the rear door bracket 7b with fixing means B such as a bolt.

  And the braking device 10 at the time of closing of a sliding door is the braking device 11 which consists of an air cylinder or a hydraulic damper, the receiving member 12 arrange | positioned at the rod front-end | tip of this braking device 11, and this receiving member 12 similarly to a prior art example. A receiving member 12 disposed at the tip of the rod of the braking device 11 and an abutting member 13 disposed at an appropriate position on the front end of the rear door 5 are configured to open the sliding door from the closed position to the open position. In order to make the rod fully extended when shifting to the above, either one is a magnet and the other is a magnetic body, or both are configured as a magnet.

  The abutting member 13 is fixed to the front end of the rear door 5 with a fixing member such as a screw via an L-shaped bracket 13a as shown in the figure, and the braking device 11 is a sliding door frame member via a Z-shaped bracket 11a. Attach to 2. The stroke L1 of the braking device 11 shown in FIG. 3 is the same stroke as the stroke L1 of the braking device 51 used in the conventional braking device 50 shown in FIG.

Further, the interlocking device 20 for the front door 4 and the rear door 5 is provided with interlocking pulleys 21a and 21b rotatably attached to the front door bracket 8a and the rear door bracket 8b of the rear door 5 as interlocking members. The interlock belt 22 is wound around. The pivot shafts 25 of the front and rear interlocking pulleys 21a and 21b extend and share the pivot shafts 25 of the door wheels 5a and 5b that are rotatably disposed on the front and rear brackets 8a and 8b of the rear door 5, respectively. I have to.
In this case, since the door pulleys 5a and 5b and the interlocking pulleys 21a and 21b are rotatably supported with respect to the rotation shaft 25 by individual bearings (not shown), the operation of the interlocking device 20 and the rear door 5 There will be no obstacle to running.

The interlock belt 22 is fixed to the sliding door frame member 2 by the fixing bracket 23 and is fixed to the rear door bracket 7b of the front door 4 by the joining bracket 24.
The fixing bracket 23 includes a pedestal portion 23a that is fixed to the sliding door frame member 2 by screws or the like, and a pressing member 23b that is fixed to the pedestal portion 23a by sandwiching the interlock belt 22 with fixing means such as bolts. The fixing bracket 23 is preferably attached to the vertical wall 2a at the entrance of the door pocket 3, so that the maintenance and replacement of the interlock belt 22 can be easily performed by opening the inspection cover.
The joining bracket 24 connects the interlock belt 22 and the front door 4 and is disposed at an appropriate position on the rear door bracket 7b of the front door 4. The joining bracket 24 has a function similar to that of the fixing bracket 23, and a base portion 24a that is fixed to the rear door bracket 7b of the front door 4 and the interlock belt 22 is sandwiched between the base portion 24a by fixing means such as bolts. It consists of a pressing member 14b to be fixed.
The interlocking belt 22 is fixed to the two locations of the sliding door frame member 2 (the side wall 2a at the entrance of the door pocket 3) and the front door 4 (the rear door bracket bracket 7b) by the fixing bracket 23 and the joining bracket 24, respectively. By doing so, the rear door 5 moves by a distance half of the movement distance of the front door 4 in conjunction with the movement of the front door 4 as in the conventional example.

In the above configuration, when the sliding door is moved from the open position (FIG. 3 (a)) to the closed position (FIG. 3 (b)), the traveling rail 6 is inclined and disposed as in the conventional example. In some cases, the front door 4 and the rear door 5 move in the closing direction due to gravitational acceleration caused by the inclination, and in the case of a parallel rail, due to manual force. When the rear door 5 advances a distance La toward the closing side, the contact member 13 disposed on the rear door 5 contacts the receiving member 12 disposed on the rod tip of the braking device 11. At this time, the moving speed of the rear door 5 is half of the moving speed of the front door 4, the load on the braking device 11 is reduced, and when an air cylinder is used as the braking device 11, air bleeding noise is generated. Can also be greatly reduced.
Further, since the moving distance of the rear door 5 is half of the moving distance of the front door, this embodiment uses the braking device 11 having the same stroke as that of the conventional braking device that is in contact with the front door. In this case, it is possible to secure a braking distance twice that of the conventional case.
When the rear door 5 is braked by the braking device 11, this braking action is transmitted from the interlock belt 22, which is engaged with the interlock pulley of the rear door 5, to the rear door bracket in the order of the front door 4. 4 is braked.

FIG. 4 shows a second embodiment of the sliding door device of the present invention.
The sliding door device 1 is the same as that of the first embodiment except that the stroke L2 of the braking device 11 used for the braking device 10 is shorter than that of the first embodiment, and the description thereof is omitted.

The stroke L2 of the braking device 11 used for the braking device 10 is set to be 1/2 to 3/4 of the stroke L1 of the braking device 11 used in the first embodiment.
When the stroke L2 of the braking device 11 is ½ of the stroke L1, it is only necessary to secure the same braking distance as in the conventional example. However, the braking device 11 can be reduced in size, and the cost of the entire device can be reduced. Since the load is only caused by the door 5 after the time is short and the speed is low, when the air cylinder is used as the braking device 11, it is possible to further reduce noise due to air bleeding sound or the like.

  As mentioned above, although the sliding door apparatus of this invention was demonstrated based on several Example, this invention is not limited to the structure described in the said Example, The structure is suitably changed in the range which does not deviate from the meaning. Is something that can be done.

  The sliding door device according to the present invention has a characteristic that the sliding range of the sliding door can be increased by disposing the contact member that contacts the receiving member of the braking device on the rear door having a low moving speed. Therefore, it can be applied to a storage type sliding door device in which the front door is stored in the rear door, and can also be applied to a double sliding door device of a type in which front and rear doors are arranged in parallel.

It is a partially notched front view of 1st Example of the sliding door apparatus of this invention. FIG. 2 is a partially cutaway cross-sectional view taken along line XX in FIG. 1. It is explanatory drawing of the opening / closing operation | movement of the sliding door apparatus of this invention, (a) is an open position, (b) is a partially notched front view which shows a closed position. It is explanatory drawing of the opening / closing operation | movement of 2nd Example of the sliding door apparatus of this invention, (a) is a partially notched front view which shows an open position and (b) shows a closed position. It is explanatory drawing of the opening / closing operation | movement of the conventional sliding door apparatus, (a) is a partially cutaway front view which shows an open position and (b) shows a closed position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door apparatus 2 Sliding door frame member 3 Door bag 4 Front door 5 Rear door 10 Braking apparatus 11 Braking apparatus 12 Receiving member 13 Contact member

Claims (1)

  Divided into front door and rear door, the interlocking member is engaged with the front and rear interlocking pulleys arranged on the rear door, and the appropriate position on one end of the interlocking member engaged with the front interlocking pulley is fixed to the front door with a joint fitting. In addition, in the double sliding door device in which the appropriate position on the other end side is fixed to the sliding door frame member with a fixing bracket, and the front door and the rear door are opened and closed in conjunction, the rear door absorbs the impact when the sliding door is closed. A sliding door device comprising a contact member that contacts the brake device.

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