JPH076435Y2 - Folding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a folding door device having a folding door in which a pair of door bodies are foldably connected.

(Prior Art) A folding door device having a folding door in which a pair of doors are foldably connected by a hinge or the like is used in a storage space such as a wall-embedded storage furniture or a movable storage furniture provided with a main frame. It is used for doors that open and close the front.

Conventionally, a folding door device used for such a furniture door has, for example, guide rails along the upper and lower edges of the front opening of the furniture main body, as shown in JP-A-61-254776. A folding door is provided that opens and closes the front opening of the furniture body, and is freely movable to the upper and lower guide rails on the upper and lower back surfaces of the outer edge of each door of this folding door. Guide hinges that are fitted to and that rotatably support each door body outward are attached.

The guide hinge attached to the upper portion of each door includes a support roller that rotates in a vertical state and a horizontal roller that rotates in a horizontal state, and the support roller is provided on a horizontal support guide portion of the guide rail. By moving, the door body is movably supported, and the horizontal roller is fitted in a horizontal guide portion having a substantially U-shaped cross section with an opening on the upper surface of the guide rail to move, thereby moving the door body. Guide the outer edge to move along the opening of the furniture body.

The guide hinges attached to the lower part of the door body include guide rods on both sides which are vertically movable on both sides of a vertically movable movable frame, and the lower guides on the upper ends of the guide rods on both sides. It has a rotatable horizontal roller that engages with the rail, a coil spring that constantly urges the guide rods on both sides upward, and a knob attached to the lower end of the operating rod attached to the movable frame. ing.

Then, the folding door that closes the front surface of the storage space is pulled by pulling one of the pair of door bodies while pulling it toward the other, so that the upper guide hinge of the one door body extends along the upper guide rail, and The lower guide hinge of one door body is slid and folded along the lower guide rail to open the opening of the furniture main body.

(Problems to be Solved by the Invention) In the structure described in the above publication, the upper guide hinge has a support roller for supporting the door body, and the outer edge of the door body moves along the guide rail. So that a horizontal roller for guiding is required, and the upper guide rail must be provided with a supporting guide portion and a horizontal guide portion.
The lower guide hinge requires a vertically movable movable frame having guide rods on both sides and an operating rod attached to the movable frame and a knob attached to the lower end of the operating rod. Had a large number of parts and a complicated structure, and was expensive.

Also, when engaging the horizontal rollers on both sides of the lower guide hinge with the lower guide rail, hold the knob and pull down the operating rod and the movable frame to move the horizontal roller from below with respect to the lower guide rail. It is necessary to engage, but the space for pulling down this knob is small, so it is not possible to easily engage the horizontal roller of the lower guide hinge with the lower guide rail. Is required.

In addition, the upper and lower guide rails of the furniture body are displaced in the front-rear direction, and the door body tilts forward or backward,
When the horizontal roller fitted in the horizontal guide portion of the guide rail tilts due to the inclination of the door body, the outer edge of the horizontal roller presses against both inner wall surfaces of the horizontal guide portion, and the horizontal roller inside the horizontal guide portion is pressed. It becomes difficult to rotate and move the door, and it becomes impossible to open and close the door smoothly.

The present invention has been made in view of the above problems,
One roller of the guide hinge can be used both as a support for the upper end of the door and as a guide for moving along the upper guide rail. When the door is closed, the base attached to the door A roller support piece having a roller fits in the fitting groove of the above to securely close the door body along with furniture, and engages with the upper guide rail. The guide pivot at the lower end of each door that engages with the guide rails of each has a small number of parts, and the structure is simple and inexpensive, and the roller of the guide pivot at the lower end of each door is moved upward with respect to the lower guide rail. Can be easily engaged, and this engagement operation is easy, and even if the door body tilts due to the displacement of the guide rail, it is not difficult for the rollers to rotate and move smoothly. Can be opened and closed It is an object to provide a that folding door apparatus.

(Means for Solving Problems) The folding door device of the present invention is provided with an upper guide rail 9 formed in an upper portion of furniture 1 and having a substantially C-shaped cross section, and below the upper guide rail 9. Located at the bottom of the furniture and arranged in the lower part of the furniture and having a substantially U-shaped cross section
13, a folding door 21 arranged between the upper and lower guide rails 9 and 13 to foldably connect a pair of door bodies 22, and the upper guides attached to the upper ends of the pair of door bodies 22, respectively. A guide hinge 24 having one roller 33 movably fitted to the rail 9, and a vertical direction attached to the lower ends of the pair of door bodies 22 and movably engaged with the lower guide rail 13. And a guide pivot 35 rotatably mounted on a roller 41 that can move back and forth.
Has a base 25 embedded in the door body 22, and upper and lower support pieces 27 projecting in parallel from the upper and lower end surfaces of the base 25.
To form a fitting groove 28 in the upper and lower support pieces 27
A mounting piece 30 to be mounted on 22 is provided in a protruding manner, and the fitting groove is formed on a vertical hinge shaft 31 supported between the tip portions of the upper and lower supporting pieces.
A roller support piece 32 that fits in a retractable manner is axially rotatably mounted in the inside of 28 and is fitted to the rail groove 10 of the upper guide rail 9 by a support shaft 34 on the roller support piece 32. The roller 33 is rotatably attached in a vertical state.

(Operation) In the folding door device according to the present invention, one of the pair of door bodies 22 is pulled toward the other while being pulled toward the other door body 22.
The guide hinge 24 is moved along the upper guide rail 9 and the guide pivot 35 is moved along the lower guide rail 13 to be folded.

At this time, in the guide hinge 24, the roller 33 is rotationally moved in the rail groove 10 of the upper guide rail 9 having a substantially C-shaped cross section, and the outer edge of the door body 22 is guided along the upper guide rail 9. While supporting, the roller surface of the roller 33 and the roller receiving surface of the rail groove 10 are engaged with each other, so that the roller 33 in the rail groove 10 can be rotationally moved in an inclined state.

In addition, the roller 33 is inserted in the rail groove 10 of the upper guide rail 9.
The roller support piece 32 fitted with is the support piece 27 above and below the base 25.
It horizontally rotates about a vertical hinge shaft 31 provided therebetween. Further, in the guide pivot 35, the roller 41 rotationally moves in the rail groove 14 of the lower guide rail 13 having a substantially U-shaped cross section, and guides and supports the lower end of the door body 22 along the lower guide rail 13.

Therefore, each door 22 can be opened and closed smoothly.

(Embodiment) Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 and FIG. 2 show a wall-embedded storage furniture. This furniture 1 is opened to the front from the left and right wall portions 2, 3, the upper and lower wall portions 4, 5, and the inner wall portion 6. A storage space 7 is formed.

A rail attachment member 8 is provided along the front edge of the upper wall portion 4 of the furniture 1, and an upper guide rail 9 is attached along the front lower edge of the rail attachment member 8. The upper guide rail 9 is formed in a substantially C-shaped cross section,
Rail groove 1 with arcuate roller receiving surfaces 10a on the upper and lower inner surfaces
0 is formed, and a rail opening 11 is formed along the front surface of the rail groove 10. In addition, the upper guide rail 9 has a total length in the left-right direction on the left and right wall portions 2, 3
Is shorter than the interval between the both ends and each of the walls 2 and 3, and after fitting a roller 33 of a guide hinge 24, which will be described later, to each end of the upper guide rail 9. The cover 12 is attached.

Further, a lower guide rail 13 is buried along the front edge of the lower wall portion 5 of the furniture 1, and the lower guide rail 13
Is formed in a substantially U-shaped cross section, inside which is formed a rail groove 14 that opens to the upper surface.
The rail portions 15 are provided so as to be opposed to each other along the inner edges of both upper ends of the rails, and the rail portions 15 are embedded in the embedding groove 5a formed in the wall portion 5. It is bonded to the upper surface.

Further, 21 is a folding door that opens and closes the front surface of the storage space 7 of the furniture 1. This folding door 21 has a pair of vertically long door bodies 22, and both door bodies 22 are provided on the back side by a plurality of hinges 23. It is foldably connected to fit. This hinge
As the member 23, one having a structure capable of elastically holding the state where both door bodies 22 are extended in parallel is used.

Guide hinges 24 are attached to the upper back surfaces of the outer edge portions of the door bodies 22 of the folding door 21, respectively. As shown in FIGS. 2 and 3, the guide hinge 24 has a base 25 embedded in the embedding hole 22a of the door body 22.
Has a semi-arcuate base portion 26 and a pair of support pieces 27 protruding in parallel from upper and lower end surfaces of the base portion 26, and a fitting groove 28 is formed by the pair of upper and lower support pieces 27. At the same time, mounting pieces 30 having a plurality of mounting holes 29 screwed to the door body 22 by screws (not shown) are provided on the surfaces of the pair of support pieces 27, respectively.

A vertical hinge shaft 31 is erected and supported between the tip ends of the pair of support pieces 27, and a roller support piece 32 is rotatably attached to the hinge shaft 31 so as to be horizontally rotatable. The roller support piece 32 is adapted to be fitted in the fitting groove 28 of the base 25 so as to be able to move back and forth, and its surface is fitted in the rail groove 10 of the guide rail 9 for rotation. A moving roller 33 is rotatably attached by a support shaft 34 in a vertical state. The outer peripheral roller surface 33a of the roller 33 is
It is formed in an arc shape in the width direction, and is fitted to the upper and lower roller receiving surfaces 10a of the rail groove 10 of the guide rail 9. The guide hinge 24 is attached such that the tip end side of the support piece 27, that is, the hinge shaft 31 side faces the end face side of the door body 22.

Further, guide pivots 35 are attached to the lower portions of the back surfaces of the outer edge portions of the door bodies 22 of the folding door 21, respectively. The guide pivot 35 is provided on the base 3 embedded in the embedding hole 22b of the door body 22.
6, the base 36 has a mounting piece 37 formed on the edge.
Is fixed to the back surface of the door body 22 by a screw (not shown), a slide hole 38 having an open bottom surface is formed in the base 36, and the shaft 39 is provided in the slide hole 38.
Is inserted and arranged so that it can move back and forth in the vertical direction.

The shaft 39 is urged downward in the advancing direction by a spring 40 arranged in the slide hole 38, and the stopper 39a at the upper end of the shaft 39 slides in the slide hole 3
The stopper hole portion 38a at the lower end portion of 8 is brought into contact with the stopper hole portion 38a to restrict its advance. A roller 41 fitted into the rail groove 14 of the lower guide rail 13 is rotatably attached to the lower end of the shaft 39.
A roller portion 41a that abuts on the rail portion 15 of the rail groove 14 is formed at the upper edge portion.

The hinge shaft 31 and the guide pivot 31 of the guide hinge 24 attached to the upper and lower portions of the back surface of the outer edge of the door body 22.
The shaft 39 and the shaft 39 are arranged on the same axis in the vertical direction, and the opening / closing rotation of the door body 22 is performed in parallel.

Further, a handle 42 is attached to a substantially central portion of the surface of each door body 22.

Then, in order to attach the folding door 21 to the furniture 1, each door body 22
The roller 33 of the upper guide hinge 24 is fitted from the end of the upper guide rail 9 where the end cover 12 is removed,
Also, the shaft 39 of the guide pivot 35 at the bottom of each door body 22
Is retracted into the base 36 against the spring 40, the shaft 39 is exposed to the lower guide rail 13 and the retracting operation is released, and the shaft 39 is lowered by the urging of the spring 40, The roller 41 at the lower end is fitted into the rail groove 14, and the roller portion 41a is brought into contact with the rail portion 15.

After mounting the folding doors 21 on the furniture 1 in this way,
An end cover 12 is attached to the end of the upper guide rail 9 to prevent the roller 33 of the guide hinge 24 from falling off. In the closed state of the folding doors 21, the door bodies 22 are held by the hinges 23 in a state of being extended in parallel, and all the folding doors 21 are arranged in parallel and the front of the storage space 7 of the furniture 1 is arranged. Block.

To open the folding door 21, for example, the left door body 22
Of the guide hinge 24 of the left side door 22 by operating the outer edge of the left side door 22 toward the right side door 22 while holding the handle 42 and pulling it toward you. The roller 33 of the rail rail 10 of the upper guide rail 9
While rotating inside, the roller of the guide pivot 35
41 moves rotationally in the rail groove 14 of the lower guide rail 13, both door bodies 22 are bent around the hinge 23, and the guide hinges 24 of both door bodies 22 rotate about the hinge shaft 31 as a fulcrum. . Then, the folding door 21 is moved to the right side and folded so that the back surfaces of both door bodies 22 are brought together.
The front of the storage space 7 is opened to the left of the.

Regarding the opening of the folding door 21, both door bodies 22 can be moved by the guide hinges 24, so contrary to the above,
It is also possible to fold the right side door body 22 toward the left side door body 22 side and fold it, and to open the front of the storage space 7 to the right side of the left side folding door 21. The front of the storage space 7 can be opened on both sides of the folding door 21.

The folding doors 21 thus folded can be moved left and right along the front surface of the storage space 7 in the folded state, and all the folding doors 21 are folded and moved to one side of the storage space 7. As a result, the front surface of the storage space 7 can be largely opened.

Further, the folding door 21 can move the front surface of the storage space 7 left and right even when both door bodies 22 are extended and in a parallel state.

Further, when the door body 22 of the folding door 21 is moved, the shaft 39 of the guide pivot 35 can advance and retreat from the base 36,
The gap between the upper and lower guide rails 9 and 13 caused by the distortion of the furniture 1 and the uneven shape of the lower wall portion 5 can be absorbed, and the door 22 can be moved smoothly.

Also, the front and rear mounting positions of the upper guide rail 9 and the lower guide rail 13 are displaced from each other, and the door body 22 is inclined forward or backward, so that the upper guide rail 9 is fitted into the rail groove 10 of the upper guide rail 9. Even if the roller 33
The roller surface 33a of 33 is an arc surface and
Since the roller receiving surface 10a of the rail groove 10 for receiving 3 is also an arcuate surface, the roller 33 does not come into pressure contact with the inner wall surface of the rail groove 10 to make it difficult to rotate, and the roller 33 is inclined with respect to the rail groove 10. Even in this state, the door 22 can be smoothly opened and closed by smoothly rotating and moving.

Further, in the above embodiment, the folding door 21 is adopted for the wall-embedded furniture, but it may be adopted for the movable furniture having the main body frame, or the front surface of the storage space for furniture or the like. Not only for doors that open and close, but also for partitioning the room.In this case, even if you use multiple folding doors 21, you can fold all the folding doors 21 and move them to one side. Is effective as

(Effect of the Invention) According to the present invention, the guide hinge has the base embedded in the door body, and the upper and lower support pieces that are projected in parallel from the upper and lower end surfaces of the base form the fitting groove. Then, mounting pieces to be mounted on the door body are projectingly provided on the upper and lower support pieces, and the hinge shafts in the vertical direction supported between the front end portions of the upper and lower support pieces are fitted in the fitting groove so as to be able to move back and forth. Since the roller supporting piece is rotatably rotatably pivoted in the horizontal direction, and the roller fitted in the rail groove of the upper guide rail by the support shaft is rotatably rotatably in the vertical state. 1 of this guide hinge
Each roller can be used both as a support for the upper end of the door and as a guide to move along the upper guide rail.When the door is closed, the fitting groove of the base attached to the door A roller support piece having a roller inside can be fitted to surely close the door body along the furniture. Further, when the door body is opened and closed, the roller support piece having the roller engaged with the upper guide rail is rotated forward and backward with respect to the fitting groove between the upper and lower support pieces about the hinge shaft to move the door body. It can be opened and closed smoothly. In addition, by embedding the base of the guide hinge in the door body and attaching the mounting pieces protruding from the upper and lower support pieces to the door body, the guide hinge can be securely attached to the door body. The door body can be reliably supported by the upper guide rail. Furthermore, the guide hinge at the upper end of each door that engages with the upper guide rail and the guide pivot at the lower end of each door that engages with the lower guide rail each have a small number of parts and are simple in structure and inexpensive to provide. it can. Further, since the roller of the guide pivot is provided so as to be able to move back and forth in the vertical direction, this roller can be easily engaged with the lower guide rail from above with one touch, and this engaging operation is easy. The roller absorbs the change in the distance between the upper and lower guide rails and can smoothly move along the rail groove of the lower guide rail. Further, since the roller of the guide hinge is fitted to the upper guide rail formed in a substantially C-shaped cross section, and the roller of the guide pivot is engaged with the lower guide rail formed in a substantially U-shaped cross section, the guide rail It is possible to prevent the rotation movement of the roller from becoming difficult even if the door body is tilted due to the displacement of the position. Therefore,
The door hinges at the upper ends of the doors engaged with the upper guide rails and the guide pivots at the lower ends of the doors engaged with the lower guide rails can smoothly open and close each door.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of a folding door device of the present invention, FIG. 2 is a partially cutaway side view, and FIG. 3 is a side view of a guide hinge. . 1 ... Furniture, 9 ... Upper guide rail, 10 ... Rail groove, 13 ... Lower guide rail, 14 ... Rail groove, 21 ...
… Folding door, 22 …… door body, 24 …… guide hinge, 25 …… base, 27 …… supporting piece, 28 …… fitting groove, 30 …… mounting piece, 31
...... Hinge shaft, 32 …… Roller support piece, 33 …… Roller, 35
…… Guide pivot, 36 …… Base, 39 …… Shaft,
40 …… Spring, 41 …… Laura.

Claims (1)

[Scope of utility model registration request] 1. An upper guide rail which is disposed on an upper part of furniture and which is formed in a substantially C-shape in section, and an upper guide rail which is positioned below the upper guide rail and is arranged in a lower part of the furniture and which is substantially U-shaped in cross section. A lower guide rail, a folding door which is arranged between the upper and lower guide rails, and which foldably connects a pair of door bodies, and an upper portion of the upper portion which is attached to the upper ends of the pair of door bodies. Guide hinges having one roller movably fitted to the guide rails, and attached to the lower ends of the pair of door bodies respectively, movably engaged with the lower guide rails, and vertically movable. And a guide pivot in which a roller is rotatably mounted, wherein the guide hinge has a base embedded in the door body, and upper and lower support pieces projecting parallel to each other from upper and lower end surfaces of the base. To form the mating groove A roller in which mounting pieces to be mounted on the door body are provided on the upper and lower support pieces so that the hinge shafts supported in the vertical direction between the upper and lower support pieces are fitted in the fitting groove so as to be able to move back and forth. A support piece is rotatably pivoted in a horizontal direction, and the roller fitted in the rail groove of the upper guide rail is pivotally rotatably attached to the roller support piece in a vertical state. Folding door device.