JP2007211431A - Folding door type door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding door type door device capable of accurately holding the open state of a door opening with simple constitution. <P>SOLUTION: A latch mechanism part 51 of a door lock mechanism 50 holding the closed state of the door opening 16 with a door panel 31 is fixed to a rear door panel part 31R in a position to face the inside of the door opening 16 when developing the door panel 31 and to face a front door panel part 31F when folding the door panel 31. The open state of the door opening 16 can thereby be accurately held with simple constitution of only adding a striker 65 fixed to the front door panel part 31. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a folding door type door device in which a door panel that opens and closes a door opening is configured by a pair of door panel portions that are foldably connected to each other via a hinge.

  Conventionally, for example, as a door device provided in a vehicle-mounted container or a microbus, a folding door type door device in which a door panel that opens and closes a door opening is configured to be foldable using a pair of door panel portions has been widely used. .

For example, as disclosed in Patent Document 1, this type of folding door device is an end of a door panel portion (right door panel) on the fixed end side of a pair of door panel portions (left and right door panels) connected by hinges. Is swingably supported by the container body (container) via a hinge, and the end of the door panel on the free end (left door panel) slides on rails provided above and below the door opening. The main part is configured by being freely engaged. Further, this type of folding door type door device is provided with a lock mechanism that locks between the container body and the door panel when the door opening is closed, and prohibits the door panel opening operation.
JP-A-6-278469

  By the way, particularly in the case where the folding door type door device is applied to a container or the like, it is desirable to hold the door panel in the open position when the door opening is opened in order to realize a good loading / unloading operation or the like. . However, newly providing such a door panel holding structure may lead to a complicated structure and an increase in manufacturing cost.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a folding door type door device that can accurately hold the open state of the door opening with a simple configuration.

  According to the present invention, a door panel that opens and closes a door opening is configured by a pair of door panel portions that are foldably connected to each other via a hinge. The door opening is closed when unfolded, and the door opening is opened when folded. In the folding door type door device, a first door lock mechanism fixed to one of the door panel portions, facing the door opening portion when the door panel is unfolded, and facing the other door panel portion when the door panel is folded. , A second door lock mechanism that is fixed to the door opening and engages with the first door lock mechanism when the door panel is deployed, and the other door panel is fixed to the door panel And a lock mechanism portion that engages with the first door lock mechanism portion when folded.

  According to the folding door type door device of the present invention, the open state of the door opening can be accurately maintained with a simple configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings relate to an embodiment of the present invention, FIG. 1 is a left side view of an in-vehicle container, FIG. 2 is a partially cutaway plan view showing a main part of a folding door type door device, and FIG. 4 is a bottom view of the latch mechanism, and FIG. 5 is a cross-sectional view taken along the line II of FIG.

  In FIG. 1, reference numeral 1 denotes a vehicle. In the present embodiment, the vehicle 1 is, for example, a simple cold truck, and a cold storage container (hereinafter simply referred to as a container) 10 is mounted on the loading platform 2 set at the rear of the vehicle 1.

The container 10 has a container main body 11 having a substantially box shape, and the container main body 11 has door openings 15 and 16 opened at, for example, a rear part and a left side part, respectively.
In the present embodiment, for example, a double door type door device 20 is provided in the door opening 15 that opens to the rear of the container body 11. This door device 20 has a pair of left and right door panels 21L and 21R that open and close the door opening 15. Each end of the door panels 21L and 21R on the outer side in the vehicle width direction is a container body via hinges 22L and 22R, respectively. 11. Further, the door device 20 includes, for example, a door lock mechanism (not shown) that is interlocked with a turning operation of a lever 23 fixed to the door panel 21L. The door lock mechanism holds both the door panels 21L and 21R in the closed position by locking the door panel 21L to the container body 11 when the door opening 15 is closed, for example, according to the turning operation of the lever 23 ( The door lock is released by releasing the door panel 21L from the container body 11.

  In addition, for example, a folding door type door device 30 is provided in the door opening 16 that opens to the left side of the container main body 11. The door device 30 includes a door panel 31 that opens and closes the door opening 16, and the door panel 31 is configured such that a pair of front and rear door panels (a front door panel 31 </ b> F and a rear door panel 31 </ b> R) can be folded together via a hinge 32. The principal part is comprised by connecting to.

  In the present embodiment, the front end portion of the door panel 31 (the front end portion of the front door panel portion 31F) is set as a fixed end portion when the door opening 16 is opened and closed. That is, the front end portion of the front door panel portion 31F is connected to the front edge portion of the door opening portion 16 via a hinge 33, and the front door panel portion 31F is swingably supported by the container body 11 by the connection by the hinge 33. Has been.

  On the other hand, the rear end portion of the door panel 31 (rear end portion of the rear door panel portion 31R) is set as a free end portion when the door opening portion 16 is opened and closed. That is, a pair of upper and lower sliders 34 project from the rear end of the rear door panel 31R, and these sliders 34 are slidably connected to the upper and lower edges of the door opening 16, respectively. Specifically, the door device 30 has a pair of upper and lower guide rails 35 extending in the front-rear direction of the container main body 11, and the guide rails 35 are fixed to the upper and lower edges of the door opening 16, respectively. The sliders 34 are slidably connected to the guide rails 35, so that the rear end portion of the rear door panel 31R moves forward and backward in the front-rear direction of the container body 11 along the door opening 16. It is possible.

  With these configurations, when the slider 34 is positioned at the rear portion on the guide rail 35, the door panel portions 31F and 31R are deployed to be flush with each other and the door opening portion 16 is closed. On the other hand, in the door panel 31, when each slider 34 is positioned at the front part on each guide rail 35, the door panel parts 31 </ b> F and 31 </ b> R are folded around the hinge 32 to open the door opening 16. Here, as shown in FIG. 3, stoppers 37F and 37R are fixedly provided on the inner surfaces of the door panel portions 31F and 31R, respectively, and when the door opening 16 is opened by the contact of the stoppers 37F and 37R. The relative positions of the door panel portions 31F and 31R are defined.

  The door device 30 also includes a door lock mechanism 50 for holding the door panel 31 in the closed position when the door opening 16 is closed. The door lock mechanism 50 includes, for example, a latch mechanism portion 51 as a first door lock mechanism portion fixed on the door panel 31 side, and a striker 52 as a second door lock mechanism portion fixed on the container body 11 side. The door panel 31 is held in the closed position by these engagements.

  As shown in FIGS. 2 and 3, in this embodiment, the latch mechanism 51 is opposed to the door opening 16 when the door panel 31 is unfolded, and opposed to the front door panel 31 </ b> F when the door panel 31 is folded. It is fixed to the rear door panel 31R. Specifically, the latch mechanism 51 is fixed to the approximate center of the upper edge on the inner surface side of the rear door panel 31R, faces the upper edge of the door opening 16 when the door panel 31 is unfolded, It faces the inner surface of the front door panel 31F when folded.

  As shown in FIGS. 4 and 5, the latch mechanism 51 includes a latch 56 and a detent lever 57 that are pivotally supported on the base plate 55, a claw 58 that swings integrally with the latch 56, and a latch 56. And a detent lever 57, and a release lever 60 that moves the detent lever 57 in a direction away from the latch 56 against the urging force of the return spring 59. Has been.

  An engaging convex portion 57 a that protrudes toward the latch 56 is provided on the peripheral portion of the detent lever 57, and the engaging convex portion 57 a is urged by the return spring 59 and is in contact with the peripheral portion of the latch 56. . Further, an engagement recess 56a is provided in the peripheral portion of the latch 56, and the engagement recess 56a has an engagement protrusion when the latch 56 is rotated by a set angle against the urging force of the return spring 59. 57a is engaged. When the engaging convex portion 57a is engaged with the engaging concave portion 56a, the swing of the latch 56 and the claw 58 is prohibited.

  On the other hand, disengagement between the engagement recess 56a and the engagement protrusion 57a is realized by the release lever 60 operating the detent lever 57 in the direction away from the latch 56. More specifically, a link mechanism portion 62 built in the rear door panel portion 31R is connected to the free end portion of the release lever 60 via a rod 61 (see FIG. 2). The link mechanism 62 operates in conjunction with a lock release button 63a on a door handle 63 fixed to the rear door panel 31R. The link mechanism 62 pulls the rod 61 when the lock release button 63a is pressed. Then, by pulling the free end portion of the release lever 60 through the rod 61, the engagement between the engagement concave portion 56a and the engagement convex portion 57a is released.

  As shown in FIGS. 2 and 3, the striker 52 is fixed to the upper edge portion of the door opening 16 corresponding to the claw 58 of the latch mechanism portion 51. When the door panel 31 is deployed, the claw 58 is engaged with the striker 52, and the engaged state is maintained.

  That is, in the present embodiment, the striker 52 is disposed at a position where the striker 52 abuts against the claw 58 in the course of the deployment operation of the door panel 31, and the striker 52 deploys the door panel 31 by the abutment of the claw 58. The latch 56 is rotated in conjunction with the operation. Then, when the latch 56 is rotated by a set angle at substantially the same timing as the end of the unfolding operation of the door panel 31, the engaging convex portion 57 a of the detent lever 57 is engaged with the engaging concave portion 56 a of the latch 56. Thereby, the engagement state of the claw 58 and the striker 52 is maintained, and the closed state of the door opening 16 by the door panel 31 is maintained.

  As shown in FIGS. 2 and 3, a striker 65 as a lock mechanism is fixed to the front door panel 31 </ b> F via a bracket 66. In the present embodiment, the striker 65 is disposed substantially at the center of the upper edge portion on the inner surface side of the front door panel portion 31F, and when the door panel portions 31F and 31R are in the folding positions defined by the stoppers 37F and 37R, the latch mechanism Engage with the claw 58 of the part 51.

  That is, in the present embodiment, the striker 65 is disposed at a position where the striker 65 comes into contact with the claw 58 in the process of folding the door panel 31, and the striker 65 folds the door panel 31 by the contact of the claw 58. The latch 56 is rotated in conjunction with the operation. Then, when the latch 56 is rotated by a set angle at substantially the same timing as the end of the folding operation of the door panel 31, the engaging convex portion 57 a of the detent lever 57 is engaged with the engaging concave portion 56 a of the latch 56. Thereby, the engagement state of the claw 58 and the striker 65 is maintained, and the open state of the door opening 16 by the door panel 31 is maintained.

  According to such an embodiment, the latch mechanism 51 of the door lock mechanism 50 that holds the closed state of the door opening 16 by the door panel 31 is opposed to the door opening 16 when the door panel 31 is unfolded, and the door panel 31. The door opening 16 can be opened with a simple configuration by adding a striker 65 fixed to the front door panel 31F by fixing it to the rear door panel 31R at a position facing the front door panel 31F during folding. Can be accurately maintained.

  That is, in the door panel 31 of the folding door type door device, the door panel portions 31F and 31R are opposed to each other in the door opening 16 when the door panel 31 is unfolded, and face each other when the door panel 31 is folded. In addition to the striker 52 fixed to the door opening 16, the other door panel (front door panel 31F) is provided by arranging the latch mechanism 51 at an appropriate position on the inner surface side of the door panel (rear door panel 31R). The function of maintaining the open state of the door opening 16 can be added to the door lock mechanism 50 with a simple configuration in which a striker 65 is newly provided.

  Thus, a series of opening / closing operations are realized by operating the single door handle 63 by using the single latch mechanism 51 for both closing and opening the door opening 16 by the door panel 31. Therefore, the operability at the time of opening / closing the door device 30 can be improved.

  Further, the engagement of the two members at different engagement positions can be easily realized by realizing the closing and opening state of the door opening 16 by the engagement of the latch mechanism 51 and the strikers 52 and 65. Can do.

  Further, the striker 65 and the latch mechanism portion 51 are arranged on the upper edge portion of each door panel portion 31F, 31R, and the striker 52 is arranged on the upper edge portion of the door opening portion 16, so that the striker 52 etc. Can be prevented from hindering the loading and unloading work, and workability can be improved.

  In the above-described embodiment, an example of a configuration in which two strikers are engaged with a single latch mechanism has been described. However, the present invention is not limited to this, and a single striker is used. Of course, the two latch mechanisms may be configured to be engageable.

  Moreover, in the above-mentioned embodiment, although the 1st door lock mechanism part and 2nd door lock mechanism part which comprise a door lock mechanism were demonstrated about the example comprised by the combination of a latch mechanism part and a striker, Of course, the present invention is not limited to this, and other locking mechanisms may be applied.

  In addition, the application of the folding door type door device of the present invention is not limited to the door opening of the container, and of course may be applied to the door opening of a microbus or the like.

Left side view of in-vehicle container The top view which shows the principal part of a folding door type door device partly broken Explanation of operation of door panel Bottom view of the latch mechanism II sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Container 11 ... Container main body 16 ... Door opening part 30 ... Door apparatus (folding door apparatus)
31 ... Door panel 31F ... Front door panel (the other door panel)
31R: Rear door panel (one door panel)
32 ... Hinge 37F, 37R ... Stopper 50 ... Door lock mechanism 51 ... Latch mechanism (first door lock mechanism)
52 ... striker (second door lock mechanism)
58 ... Claw 65 ... Striker (lock mechanism)

Claims (3)

A folding door-type door device, in which a door panel that opens and closes a door opening is configured by a pair of door panels that are foldably connected to each other via a hinge, closes the door opening when unfolded, and opens the door opening when folded In
A first door lock mechanism portion fixed to one of the door panel portions, facing the door opening when the door panel is unfolded, and facing the other door panel portion when the door panel is folded;
A second door lock mechanism portion fixed to the door opening and engaged with the first door lock mechanism portion when the door panel is deployed;
A folding door type door device comprising: a lock mechanism portion fixed to the other door panel portion and engaged with the first door lock mechanism portion when the door panel is folded. Each of the second door lock mechanism and the lock mechanism is composed of strikers,
The folding door type door device according to claim 1, wherein the first door lock mechanism portion is constituted by a latch mechanism portion having a claw that can be engaged with each striker. The first door lock mechanism and the lock mechanism are disposed on the upper edge of each door panel,
The folding door type door device according to claim 1 or 2, wherein the second door lock mechanism is disposed on an upper edge of the door opening.

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