JP3181807B2 - Folding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door, and more particularly to a folding door.
The present invention relates to a traveling-type folding door having a base portion of two door plates in which two door plates are foldably connected and movably supported along a guide rail.

[0002]

2. Description of the Related Art In a conventional traveling folding door device,
It is configured to support two door plates that can be freely opened and closed between a fully deployed position and a completely overlapped position along a guide rail, and the two door plates are placed in an overlapped position to a desired position. When the vehicle is run, the two door plates are deployed at that position to close the opening of the storage space, and the opening is opened by the reverse operation.

[0003]

However, in the conventional configuration described above, when the two doors are in a completely folded position in which the two doors are substantially overlapped during traveling, the two doors are in a supporting state close to one-point support, so that the doors can be easily mounted. There has been a problem that the door swings and is twisted with the guide rail to make opening and closing of the folding door extremely unstable, and that some components are damaged.

[0004] In order to solve such a problem, the two door plates can be opened and closed between an unfolded position and an intermediate folded position opened at a certain angle in a V-shape, and the vehicle is driven in the intermediate folded position. However, in that case, there is a problem in that it becomes obstructive when the folding door is opened to take out the stored items, which may be inconvenient.

[0005] Further, it is conceivable to provide means for enabling the two door plates to be opened and closed between a completely folded position and a completely unfolded position and for elastically engaging and holding the two door plates in an intermediate folded position. In this case, when driving in the intermediate folding position, the outer surface of the door plate may be pushed in a substantially vertical direction in order to bring the door to the completely folded position.However, when changing from the completely folded position to the intermediate folding position, one door plate is fixed and the other is fixed. Since the operation of separating the door plate is necessary, the operation is troublesome, and furthermore, when the intermediate folding position is changed to the fully deployed position, the tops of the two door plates in the intermediate folding position are pushed and spread, but at that time, Because it is held elastically in the middle folding position, it cannot be spread out by just pushing it lightly, it must be pushed strongly, and the door plate will suddenly Spread, and there is a problem that there is a possibility that across the finger or the like between the edge of the door leaf.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention is capable of automatically moving to an intermediate folding position in a folded state so that the vehicle can run stably during running, and can be easily brought into a completely folded state to store articles and the like. It is an object of the present invention to propose a folding door which can easily be put in and out, and can be easily brought into a fully deployed posture without fear of pinching a finger.

[0007]

In order to achieve the above object, the present invention provides two door plates (2, 2) if reference numerals in the following embodiments are shown in parentheses for reference. hinge
Folding doors that are foldably connected by (3) and movably support the base of each door plate (2, 2) along the guide rail (5).
(1) wherein the hinge (3) is a biasing means (21) for opening the two door plates (2, 2), which are substantially overlapped in a completely folded position, to an intermediate folded position opened by a certain angle; Click means for elastically locking the two door plates (2, 2) in the posture
(20), and two door plates (2, 2) between the position where the locking of the click means (20) is released and the intermediate folding posture.
In this configuration, the opening and closing force is not applied to the motor.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a folding door according to an embodiment of the present invention will be described.
This will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a folding door which closes an opening of a storage space so as to be openable and closable, and a set of two door plates 2 are foldably connected to each other by a hinge 3. From the fully unfolded position shown in the figure, it can be changed to the intermediate folding position opened at a certain angle in a V-shape shown in (b), and further to the fully folded position almost overlapping as shown in (c), or conversely from the completely folded position It is configured to be able to be in a deployed position. In addition, 2 joined by the hinge 3
The traveling wheels 4 are attached to the upper edges of the bases of the two door plates 2 and 2 via hinges (not shown) as appropriate, and travel in the direction of arrow A along the guide rails 5 in the intermediate folded position shown in FIG. It is configured to be possible. Further, the hinge 3 is click-locked so as to maintain its state in the fully deployed position shown in (a), and the opening / closing force is changed between the fully deployed position shown in (a) and the intermediate folded position shown in (b). It is configured to be openable and closable in a non-operating state, and to urge the two door plates 2 and 2 toward the intermediate folding position as shown by an arrow B in (b) in the fully folded position shown in (c). I have.

2 to 4 showing the detailed structure of the hinge 3, reference numerals 6 and 7 denote a pair of mounting members.
Cylindrical portions 6a and 7a are formed on the opposite edges of the support member 8, respectively. The support shaft 8 is inserted through these and the two mounting members 6 and 7 are rotatably connected. A notch having an appropriate width is formed at the center of the cylindrical portion 6a, and a cam 9 having a cam surface on the outer periphery is arranged. The cam 9 has a support shaft 8 penetrating the shaft hole and is engaged and fixed to one of the mounting members 6 as described later. The cam 9 is made of a synthetic resin material having excellent friction / wear characteristics and impact resistance, such as polyamide resin such as nylon 66.

Each of the mounting members 6 and 7 is formed in a substantially semicircular shape so as to be circular when both are opened, and the outer peripheral portion thereof is a mounting flange portion 10 to form a plurality of mounting members at appropriate circumferential intervals. A hole 11 is formed. A peripheral flange 12 that fits into a mounting concave portion formed in the door plate 2 is protrudingly provided on a rear surface of an inner peripheral portion of the mounting flange portion 10.

At the center of the mounting members 6 and 7 along the opposing edges, recesses 6b and 7b having an appropriate width and reaching the peripheral flange 12 are formed, and the opposing edge of the bottom surface of the recess 6b of one of the mounting members 6 is formed. The cam 9 is fixed by engaging an engaging step 9a formed at a lower portion of the cam 9 with the cam 9.

On the bottom surface of the concave portion 7b of the other mounting member 7, a protruding ridge 13 having an inverted L-shaped cross section is provided so as to face each other at an appropriate interval in a direction orthogonal to the facing direction of the mounting members 6, 7. A guide portion 14 is configured to support the movable body 15 movably in the near and far directions with respect to the cam 9 by the pair of protrusions 13, 13.

The movable body 15 is made of a synthetic resin material such as polyacetal resin having excellent friction and wear characteristics, and has guide grooves 15 slidably engaged with the guide portions 14 on both sides thereof.
a is formed and is supported movably in the near and far directions with respect to the cam 9 along the guide portion 14. An engagement projection 16 is provided on the distal end of the movable body 15 to press against the cam surface of the cam 9, and a spring receiving hole 17 is formed on the rear end surface.
A spring 18 is interposed between the spring receiving hole 17 and the peripheral flange 12, and the movable body 15 is elastically pressed toward the cam 9 by the biasing force of the spring 18.

On the cam surface of the cam 9, as shown in FIG.
When the door plates 2 and 2 are in the fully deployed position and the mounting members 6 and 7 are located on the same plane, the engagement projection 1 of the movable body 15
An engagement recess 19a into which the door 6 is engaged is formed. The engagement recess 19a of the cam 9 and the engagement projection 16 form a click means 20 for clicking and locking when the door plates 2, 2 are in the fully deployed posture. It is configured.

The cam surface with which the engaging projection 16 engages while the door plates 2, 2 are in the fully folded position to the intermediate folded position is coaxial with the support shaft 8 and has a diameter smaller than that of the engaging recess 19a. 5, after the engaging projection 16 rides on the concentric portion 19b from the engaging concave portion 19a as shown in FIG. 5, the door plates 2, 2 are in the intermediate folded position as shown in FIG. During this period, the diameter does not change and the opening and closing force does not act.

The cam surface with which the engaging projection 16 engages while the door plates 2, 2 are in the fully folded position from the intermediate folded position is, as shown in FIGS. 6 and 7, a boundary with the concentric portion 19b. Is formed on the inclined cam surface 19c such that the diameter gradually increases toward the position where the engaging projection 16 engages in the fully folded posture via the minute step portion 19d. At 16, an urging means 21 for urging the door plates 2, 2 in the completely folded position toward the intermediate folded position as shown by an arrow B in FIG. 7 is configured.

In the folding door 1 having the above structure, FIG.
In the fully deployed posture of the door plates 2 and 2 shown in (a), as shown in FIG. 4, the hinge 3 has its mounting members 6 and 7 in the same plane.
5 is engaged with the engaging recess 19a of the cam 9 fixed to the mounting member 6, and there is a relatively large step between the engaging projection 16 and the concentric portion 19b. , 2
Is click-locked in a fully deployed posture by a click means 20 composed of an engagement recess 19a and an engagement protrusion 16. Therefore, there is no possibility that the door plates 2 and 2 are unexpectedly bent to form a gap in the folding door.

Next, to close and move from the fully deployed position to the intermediate folded position shown in FIG. 1 (b), a handle appropriately provided near the joint of the door plates 2 and 2 with the hinge 3 is pulled. First, as shown in FIG.
The engaging projection 16 rides on the concentric portion 19b from the engaging concave portion 19a against the urging force of the above, and thereafter the opening and closing force does not act, so that the handle is lightly pulled or the edge of one door plate 2 is lightly pushed. The door plates 2 and 2 can be in a V-shaped intermediate folding posture. At this time, as shown in FIG. 6, the hinge 3 is such that the engaging projection 16 of the movable body 15 is engaged with the minute step 19d at the boundary between the concentric portion 19b and the inclined cam surface 19c, and the hinge 3 is folded further. In order to achieve this, it is necessary to make the engaging projection 16 ride on the inclined cam surface 19c, and the intermediate folding posture is maintained unless a certain or more large force acts. Therefore, by pushing the door plate 2 with an appropriate force, it is possible to stably travel along the guide rail 5 while maintaining the intermediate folding posture as shown by the arrow A in FIG.

After running the folding door 1 in this way,
As shown in FIG. 1 (c), in a state where the traveling wheels 4 are in contact with the contact portions 22 provided at the traveling end or the like and the traveling is stopped, the door plates 2, 2 are completely folded.
When one door plate 2 is strongly pushed perpendicularly to the plate surface as shown by an arrow C, the engaging projection 16 rides on the inclined cam surface 19c as shown in FIG. It can be. In this way, the opening of the storage space can be completely opened, and it does not become an obstacle when a large storage item or the like is put in or out of the storage space. On the other hand, in the state shown in FIG.
When the pressing of the door plate 2 is released, the door 2 automatically returns to the intermediate folded position shown in FIG.

As described above, during traveling, the two door plates 2,
2 is in an intermediate folding position in which it is opened at a fixed angle, so that the vehicle can always run stably, and there is no danger that an excessive load acts on a part of the component and the component is damaged. Also, at the traveling end, when one of the door plates 2, 2 in the intermediate folding position is pressed with one hand when necessary, the two door plates 2, 2 can be brought into the completely folded position, which hinders the storage and unloading of stored items. It doesn't even become.

Further, since no opening / closing force is applied between the intermediate folding posture of the folding door 1 and the fully deployed posture, when the intermediate folding posture is changed to the fully deployed posture, the two door plates 2 in the intermediate folded posture are used. 2 can be spread by simply pressing the top of the door 2 lightly, and there is no danger that a finger or the like will be pinched between the edges of the door plates 2 and 2. When the door 2 is fully deployed, the click means 20 automatically operates. Click locked.

The folding door of the present invention is not limited to the specific configuration example shown in the above embodiment, but can be configured in various modes.

[0024]

The folding door of the present invention can be embodied as described above, with the hinges connecting the two door plates being turned from the completely folded position to the intermediate folded position. Since there is a biasing means for opening and biasing and no opening / closing force is applied between the fully deployed posture and the intermediate folded posture, the locking of the two door plates in the fully deployed posture by the click means is released. When the doors are lightly closed toward the rear folding position, the two door plates are in the intermediate folding position and are not folded any more, and can be run stably while maintaining the intermediate folding position. There is no danger of being damaged by excessive load. Also, when necessary, when one of the door plates in the intermediate folding position is pressed with one hand at the traveling end or the like, the door plates can be easily brought into the completely folded position against the urging force of the urging means. The intermediate folding posture can be automatically set without any troublesome operation without disturbing the taking in and out of an object or the like and releasing the pressing.

Further, in the fully deployed position, the two door plates are elastically locked by the click means and click-locked, so that the two door plates are unexpectedly bent to form a gap in the folding door. Without such a situation, a stable closed state is ensured.

When the door is closed from the fully deployed position to the folded position, the vicinity of the connecting portion of the door plate is pulled to release the locking by the click means, and the door can be closed lightly toward the intermediate folded position. Conversely, to achieve the fully deployed position at the desired position, lightly press the tops of the two door plates in the intermediate folded position, or pull the tip of the door plate lightly to achieve the deployed position without resistance and without the risk of pinching a finger or the like. And finally push the outer surface of the door plate in a substantially vertical direction to achieve a fully deployed position.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an operation state of a folding door according to an embodiment of the present invention.

FIG. 2 is a front view of a hinge used in the embodiment.

FIG. 3 is a vertical sectional side view of a main part of the hinge.

FIG. 4 is a cross-sectional plan view of the hinge when the folding door is in a fully deployed posture.

FIG. 5 is a cross-sectional plan view of the hinge when the folding door starts closing and the click lock by the click means is released.

FIG. 6 is a cross-sectional plan view of the hinge when the folding door is in an intermediate folding position.

FIG. 7 is a cross-sectional plan view of the hinge when the folding door is in a completely folded posture.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door 2 Door plate 3 Hinge 5 Guide rail 20 Click means 21 Urging means

Claims (1)

(57) [Claims] The doors (2, 2) are foldably connected by hinges (3), and the base of each door (2, 2) is movably supported along a guide rail (5). A hinge (3) comprising: a biasing means (21) for opening two door plates (2, 2) in a substantially overlapping completely folded position to an intermediate folded position opened by a certain angle; , Two door plates in fully deployed position
Click means (20) for elastically locking (2, 2),
A folding door in which the opening / closing force is not applied to the two door plates (2, 2) from the position where the locking of the click means (20) is released to the intermediate folding position.