JP5134209B2 - Sliding door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door device which can minimize a necessary space above a door frame 30. <P>SOLUTION: The sliding door device is formed of: a front door 10; a rear door 20 for storing the front door 10 therein; a door storage case B for storing the rear door 20 therein; and an interlocking mechanism 40 for moving the front door 10 and the rear door 20 in interlock with each other. The rear door 20 is hung from a hanger rail 37 via front and rear hangers 11, 11. The front door 10 has a front portion thereof hung from the hanger rail 37 via the hanger 11, and a rear portion thereof supported by a traveling rail 22 inside the rear door 20 via a sash roller 12. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a sliding door device in which a sliding door is divided into a front door and a rear door.

  The sliding door device is divided into a front door and a rear door, and the front door is housed in the rear door. The sliding door device requires about half the full width of the opening, and the required thickness of the door pocket is reduced. can do. This is because the front door can be housed in the rear door, and both can be housed together (Patent Document 1).

This hangs the rear door from the hanger rail on the upper part of the door frame through the front and rear suspension wheels, while the front door suspends the front from the hanger rail through the front suspension wheel. The rear part is suspended from another hanger rail in the rear door via a suspension vehicle. Also, the front door and the rear door are interlocked via an interlocking mechanism, and the interlocking mechanism swings provided at the rear part of the door pocket with respect to a sliding piece that can be moved up and down at the rear part of the front door and the rear door, respectively. It is configured by penetrating the heel in a slidable manner in common. However, the interlocking mechanism may be configured by winding a wire around front and rear pulleys on the rear door and connecting the wire to the door frame and the front portion of the front door (Patent Document 2).
Japanese Patent No. 3447596 Japanese Patent No. 3536200

  When such a conventional technique is used, the front door is suspended from the hanger rail on the upper part of the door frame and another hanger rail in the rear door. The problem is that space tends to be large, and if there is an error in the parallelism or height of the two hanger rails that suspend the front and rear of the front door, the front door may not open and close smoothly. was there. In the case of using an interlocking mechanism that uses a pulley and a wire, a larger space is required above the door frame, and the problem is more serious.

  Therefore, in view of the problems of the prior art, the object of the present invention is to support only the rear part of the front door via the door pulley, thereby minimizing the required space above the door frame by using only one hanger rail. It is in providing the sliding door apparatus which can be performed.

  The configuration of the present invention for achieving such an object comprises a front door, a rear door for storing the front door, a door bag for storing the rear door, and an interlocking mechanism for interlocking the front door and the rear door, The rear door is hung from the hanger rail on the top of the door frame via the front and rear suspension wheels so that it can move back and forth. The front door is hung from the hanger rail through the suspension vehicle, and the rear door is hung from the rear wheel It is supported by the traveling rail at the lower end of the front and rear, and the first guide roller at the upper end of the rear is engaged with the rear door to prevent it from swinging, and the traveling rail is raised upward to cover the top of the door wheel An auxiliary piece to be bent is formed. Front and rear pulleys projecting to one side of the auxiliary frame and wrap around the pulley , Located inside and outside the auxiliary frame and a endless wire Cyclic traveling wire, as well as connected to the rear of the front door, and its gist be coupled to door frame outside the auxiliary frame.

  The rear door can be prevented from tilting via a second guide roller attached to the door frame, and the second guide roller can be engaged with the lower surface of the traveling rail.

  According to the configuration of the invention, the front door is hung from the hanger rail on the upper part of the door frame that suspends the rear door via the suspension car, and is moved by the traveling rail at the lower end of the rear door via the door wheel. While supporting the rear part, the first guide roller at the upper end of the rear part is engaged with the rear door and is prevented from shaking. That is, it is only necessary to provide one hanger rail at the top of the door frame, and the required space above the door frame can be minimized. In addition, the front door is supported at two points on the diagonal line through the front suspension wheel and the rear door wheel, and is steady at the other point through the first guide roller at the upper end of the rear part. There is no risk of twisting, and it can always open and close smoothly.

  By preventing the rear door from tilting via the second guide roller, there is no risk of inadvertent tilting or shaking. The second guide roller is preferably provided upward on the door frame near the front end of the door pocket so as to correspond to the front end portion of the rear door when the rear door is stored in the door pocket. Further, if the second guide roller is engaged with the traveling rail at the lower end of the rear door, the traveling rail can be used for both the front door door roller and the second guide roller.

  The interlocking mechanism connects the wire wound around the front and rear pulleys on the rear door to the door frame and the rear part of the front door, thereby transmitting the front and rear movement of the front door to the rear door via the wire and opening and closing the front door The rear door can be driven together simply by operating. The front pulley may be disposed so as to protrude forward of the rear door by the minimum necessary distance in order to connect the wire to the rear portion of the front door. The interlocking mechanism can be mounted on the upper end of the rear door via an auxiliary frame for mounting the front and rear suspension vehicles on the rear door.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The sliding door device includes a front door 10 and a rear door 20 incorporated in a door frame 30 (FIGS. 1 and 2). However, FIGS. 1 and 2 illustrate the case where the opening F is closed to the fully closed state by the front door 10 and the rear door 20.

  A door pocket B formed as a storage wall is formed on the rear side of the door frame 30. The rear door 20 accommodates the front door 10 and accommodates the front door 10 together with the front door 10 to open the entire opening F.

  The door frame 30 includes a lower frame 31, front and rear eaves frames 32 and 33, and an upper frame 34. In addition, the support | pillars 35 and 35 are standingly arranged in the front end of the door pocket B, and the rear door 20 can be made to approach between the support | pillars 35 and 35. FIG. In addition, side plates 36 and 36 of the door pocket B embedded in the walls W and W are stretched between the respective columns 35 and the rear frame 33. At the upper part of the door frame 30, long hanger rails 37 are installed in the upper frame 34 in the front and rear direction. doing.

  The front part of the front door 10 is suspended from the hanger rail 37 via the suspension wheel 11, and the rear part is supported by the traveling rail 22 at the lower end of the rear door 20 via the door wheel 12 so as to be movable back and forth. The suspension wheel 11 is provided with an auxiliary roller 11a for preventing detachment, and the suspension wheel 11 and the auxiliary roller 11a are mounted on the upper end of the front portion of the front door 10 via a common bracket 11b. Moreover, the door pulley 12 is assembled | attached to the rear-part lower end of the front door 10 via the bracket 12a. Note that a first guide roller 13 is mounted upward on the rear upper end of the front door 10, and the first guide roller 13 can engage with the rear door 20 to prevent the front door 10 from swinging. it can. Further, operating handles 14 and 14 are attached to the front portion of the front door 10 so as to protrude from both surfaces, and a door stop 15 is attached to the rear end of the front door 10.

  The rear door 20 is suspended from a hanger rail 37 via front and rear suspension wheels 21 and 21 so as to be movable back and forth. However, each suspension wheel 21 is provided with an auxiliary roller 21a for preventing detachment, and the suspension wheel 21 and the auxiliary roller 21a are mounted on the auxiliary frame 24 at the upper end of the rear door 20 via a common bracket 21b. Yes. Further, in the vicinity of the front end of the door pocket B, a second guide roller 23 is provided upward on the lower frame 31. The second guide roller 23 engages with the lower end of the rear door 20, and the lower portion of the rear door 20. Can be guided in the front-rear direction to prevent the rear door 20 from tilting.

  The front door 10 and the rear door 20 are connected via an interlocking mechanism 40.

  The interlocking mechanism 40 includes front and rear pulleys 41 and 41 mounted on the upper end of the rear door 20 via auxiliary frames 24 for the front and rear suspension wheels 21 and 21, and an endless wire 42 wound around the pulleys 41 and 41. Yes. However, the front pulley 41 is arranged so as to protrude forward of the rear door 20 by extending the auxiliary frame 24. Further, the wire 42 is coupled to the rear portion of the front door 10 via a fixing bracket 43 on the front door 10, and is coupled to the door frame 30 via a fixing bracket 44 in the upper frame 34.

  The first guide roller 13 at the rear upper end of the front door 10 is engaged with the upper end of the rear door 20 (FIGS. 3 and 4). In addition, the pulley 41 in front of the interlocking mechanism 40 is attached downwardly in front of the rear door 20 by extending both side surfaces and the upper surface of the hat-shaped auxiliary frame 24. The front pulley 41 can be moved back and forth via a tension bracket 41a with an adjusting screw, and the tension of the wire 42 can be adjusted. The wire 42 is positioned inside and outside the auxiliary frame 24, and the fixing bracket 43 on the front door 10 can enter the auxiliary frame 24 when the front door 10 is stored in the rear door 20.

  The hanger rail 37 is assembled in the upper frame 34 via support members 37a and 37b connected to the structural material of the building. However, the support members 37a and 37b constitute a part of the upper frame 34, and the fixing bracket 44 is attached to the support member 37b. The bracket 11b for the suspension vehicle 11 of the front door 10 is attached to the front upper end of the front door 10 via the spacer 11c, and the bracket 21b for the suspension vehicle 21 of the rear door 20 is attached to the auxiliary frame via the spacer 21c. 24 is fixed to the upper surface. The upper frame 34 is provided with a detachable hook-type inspection lid 34a, and the lower surface of the upper frame 34 is closed to both sides of the front door 10 at the front part of the opening F (see FIG. 4). (Dotted line), the rear portion of the opening F is closed to both sides of the rear door 20 (solid line in the figure).

  The door wheel 12 at the lower end of the rear portion of the front door 10 travels back and forth on a traveling rail 22 attached to the lower end of the rear door 20 (FIG. 5). The traveling rail 22 is formed with an auxiliary piece 22a that is raised upward and bent so as to cover the upper portion of the door wheel 12, and the auxiliary piece 22a can prevent the door wheel 12 from coming off. Further, the second guide roller 23 on the lower frame 31 is engaged with the lower surface of the traveling rail 22 having a hat-shaped cross section, and the second guide roller 23 is a bracket for fixing the side plates 36 and 36 of the door pocket B. It stands on 36a via the spacer 23a.

  When the opening F is closed in the fully closed state by the front door 10 and the rear door 20 (FIGS. 1 and 2), the front door 10 is almost entirely pulled out from the rear door 20, and the front end of the front door 10 is While stopping against the collar frame 32, the rear end of the front door 10 remains slightly in the rear door 20, and the first guide roller 13 is engaged with the front end of the rear door 20. The rear door 20 is almost entirely pulled out from the door pocket B, and the rear end of the rear door 20 remains slightly in the door pocket B. Therefore, the second guide roller 23 is engaged with the rear portion of the rear door 20. In addition, the hanger rail 37 shall be installed slightly forward and downward in order to maintain the front door 10 and the rear door 20 in such a fully closed state. Further, in the upper frame 34, when the front door 10 and the rear door 20 are closed in a fully closed state, the rear door 20 is stopped at the specified position in FIGS. 1 and 2 without causing an excessive impact. No damper is installed.

  When the front door 10 is pulled backward through the handle 14 to open the opening F (in the directions of the arrows K1 in FIGS. 1 and 2), the wire 42 of the interlocking mechanism 40 passes through the fixing bracket 44. Since it is connected to the door frame 30, tension is applied in the direction of pulling the front pulley 41 rearward through the fixing bracket 43, so the rear door 20 is moved rearward via the wire 42 and the front pulley 41. Driven (in the direction of arrow K2 in FIG. 2). At this time, the wire 42 is wound around the pulleys 41 and 41 on the rear door 20 and moves rearward as the rear door 20 moves backward without being loosened by the rotation of the pulleys 41 and 41. Further, the reverse speed of the rear door 20 is ½ of the reverse speed of the front door 10. That is, the front door 10 is accommodated in the rear door 20 as it moves backward, and the rear door 20 is accommodated in the door pocket B.

  When the opening F is fully opened (FIGS. 6 and 7), the front door 10 is almost entirely housed in the rear door 20 except for the front end to which the handles 14 and 14 are attached. It protrudes from the rear end of the rear door 20 and comes into contact with the rear collar frame 33 to stop. At this time, the first guide roller 13 on the front door 10 is engaged with the rear end portion of the rear door 20. The rear door 20 is almost entirely housed in the door pocket B together with the front door 10, and the second guide roller 23 is engaged with the front end portion of the rear door 20. Note that a stopper (not shown) is attached to the upper frame 34 in order to lightly lock the rear door 20 in such a fully opened state.

  Subsequently, when the front door 10 and the rear door 20 are to be fully closed, the front door 10 is pulled forward through the handle 14 (in the directions of arrows K3 in FIGS. 6 and 7). At this time, tension is applied to the wire 42 of the interlocking mechanism 40 so as to advance the rear pulley 41 via the fixing bracket 43, and the rear door 20 is advanced. At this time, the forward speed of the rear door 20 is ½ of the forward speed of the front door 10. Therefore, since the front door 10 is pulled out from the rear door 20 as it moves forward, and the rear door 20 is pulled out from the door pocket B, it can be finally shifted to the fully closed state of FIGS.

  Note that the first guide roller 13 always engages with the rear door 20 to prevent the front door 10 from swinging over the entire stroke of the fully open operation and fully close operation of the front door 10 and the rear door 20. Further, the second guide roller 23 always engages the lower end of the rear door 20 to prevent the rear door 20 from tilting. That is, the front door 10 can be moved back and forth easily through the suspension wheel 11 and the door wheel 12, and the rear door 20 can be moved back and forth easily through the suspension wheels 21 and 21.

  In the above description, the interlocking mechanism 40 may use a sprocket and a chain instead of using the pulley 41 and the wire 42. Further, as in Patent Document 1, the interlocking mechanism 40 may be configured by combining a swing rod provided at the rear portion of the door pocket B and a sliding piece incorporated in each rear portion of the front door 10 and the rear door 20.

Overall schematic front view Horizontal sectional view of FIG. Perspective view of main part configuration 1 is an enlarged view corresponding to the X arrow view of FIG. Enlarged view corresponding to the arrow Y in FIG. 1 equivalent operation diagram 2 equivalent operation diagram

Explanation of symbols

B ... Door bag 10 ... Front door 11 ... Suspension car 12 ... Door car 13 ... First guide roller 20 ... Rear door 21 ... Suspension car 22 ... Travel rail 23 ... Second guide roller 30 ... Door frame 37 ... Hanger rail 40 ... Interlocking mechanism 41 ... Pully 42 ... Wire

Patent Applicant Komatsu Wall Industry Co., Ltd.
Attorney Tadaaki Matsuda, Attorney

Claims (2)

A front door; a rear door that houses the front door; a door pocket that houses the rear door; and an interlocking mechanism that interlocks the front door and the rear door. The front door is hung from the hanger rail on the upper part of the door frame so as to be movable back and forth, the front part is hung from the hanger rail via a suspension car, and the rear part is hung by a running rail at the lower end of the rear door via the door wheel. Auxiliary support that supports the front and rear movements, engages the rear door with a first guide roller at the upper end of the rear part and prevents the swinging, and raises and flexes the traveling rail so as to cover the upper part of the door wheel The interlocking mechanism is mounted on the upper end of the rear door via an auxiliary frame that fixes the front and rear suspension wheels upward on the upper surface, and is mounted downward on the upper surface of the auxiliary frame to form a part of the outer periphery. Front and rear pulleys projecting to one side of the auxiliary frame, And an endless wire that circulates and wraps around the auxiliary frame and is connected to the rear part of the front door and to the door frame outside the auxiliary frame. sliding door device according to claim to Rukoto.   The rear door is prevented from tilting via a second guide roller attached to the door frame, and the second guide roller is engaged with the lower surface of the traveling rail. Sliding door device.

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