JP3082910B2 - Biaxial hinge for 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 biaxial hinge for a folding door, which is provided with three blades in a substantially U-shape between adjacent door plates of a folding door such as a partition interior or furniture, and is rotated by two shafts. It belongs to such a technical field.

[0002]

2. Description of the Related Art Conventionally, a biaxial hinge for a folding door having a guide mechanism for preventing noise and rattling during the turning operation of the folding door has been disclosed by the present applicant in Japanese Patent Application No. Hei 9-1189.
No. 20 has been proposed.

This conventional biaxial hinge for folding doors has a first wing plate and a pair of first hinge plates which are rotatably supported at both ends of the first wing plate and respectively fixed to end surfaces of adjacent door plates. The second blade, and one end of the first blade and the second blade in the up-down direction (up-down direction of the door plate) are supported by shafts that are pivotally supported by the respective rotating tips of the pair of second blades. A first guide fitting having a circular arc-shaped long hole to be fitted therein, and a long hole extending in a width direction of the door plate in which the shaft is loosely fitted are slidable in the front-rear direction of the door plate with respect to the first guide fitting. And a second guide fitting to be assembled to the second guide fitting.

[0004]

In the above-described conventional biaxial hinge for a folding door, the guide mechanism guides the pair of second pivotal tips about the axis, so that the biaxial hinge for the folding door is folded. In this case, the width is larger than the substantially U-shaped opposed space formed at this time, so that only the upper and lower ends of the door plate can be provided. In this case, the guide mechanism
It is located in the gap between the upper or lower end of the door plate and the rail that makes the door plate slidable. Not only the gap becomes larger due to the interposition of this guide mechanism, but also a runner that can adjust the rail and the door plate up and down However, there is a problem in that the vertical adjustment mechanism cannot function even if it is mounted via the.

Further, in the conventional guide mechanism, since the biaxial hinge for the folding door can only be attached to the upper and lower ends of the door plate, for example, as disclosed in Japanese Patent Application No. 9-30296 by the present applicant. For example, when a handle is provided, there is a problem that a guide mechanism cannot be used for a folding door biaxial hinge attached to a substantially middle portion in the vertical direction of a door plate.

Further, since the above-mentioned guide mechanism is in a state of protruding from the substantially U-shape formed by the blades, not only the appearance of the biaxial hinge for the folding door is impaired, but also the guide mechanism is damaged during transportation. It was thought.

The present invention has been made in consideration of such problems, and has a compact guide mechanism without affecting the up-down adjustment function of the runner. It is an object of the present invention to provide a biaxial hinge for folding doors that can be used for widespread use and that can be easily transported.

[0008]

In order to solve the above-mentioned problems, a biaxial hinge for a folding door according to the present invention is characterized in that, in the first aspect, three blade plates are provided in a substantially U-shape between adjacent door plates. 2
In a biaxial hinge for a folding door which is rotated by a book shaft, a first blade plate and both ends of the first blade plate are rotatably supported at respective ends thereof and are respectively fixed to end surfaces of adjacent door plates. The pair of second blades and a guide mechanism projecting from the first blade into a substantially U-shaped space portion, and the guide mechanism guides the rotation of the pair of second blades. It is characterized by.

In this means, since the guide mechanism is located in the substantially U-shaped space formed by the three blades, the biaxial hinge for the folding door is in a compact state that can be attached between adjacent doors.

According to a second aspect of the present invention, in the biaxial hinge for the folding door according to the first aspect, the guide mechanism comprises a block protruding at a smaller interval than the first blade plate, and a slide mechanism provided on the block. It is characterized by being performed.

According to this means, the rotation of the second blade plate is guided in the substantially U-shaped space by the sliding operation of the slide mechanism provided in the block at a smaller interval than the first blade plate.

According to a third aspect of the present invention, in the biaxial hinge for the folding door according to the second aspect, the slide mechanism includes a slide member that slides in a thickness direction of the block and a slide member provided on the slide member. And a guide mechanism for guiding the rotation of the pair of second blade plates accordingly.

In this means, the guide mechanism operates in accordance with the sliding of the slide member in the thickness direction, and the rotation of the pair of second blade plates is guided.

According to a fourth aspect of the present invention, in the biaxial hinge for the folding door according to the third aspect, the slide member is constituted by a slide groove provided between the block and a locking piece which is locked in the slide groove. It is characterized by that.

According to this means, the slide member is slid in the thickness direction of the block with the locking pieces locked in the slide grooves.

According to a fifth aspect of the present invention, there is provided the folding door biaxial hinge according to the third or fourth aspect, wherein the guide mechanism is provided on an extension portion extending in the width direction of the slide member. I do.

In this means, an extending portion is provided which fits in a substantially U-shaped space in the width direction of the slide member, and the extending portion extends in the width direction necessary for the rotation of the pair of second blade plates. A rotation guide space is secured.

Further, in claim 6, claim 3, 4 or 5
In the above-described folding hinge for a folding door, the guide mechanism is characterized by comprising a guide hole for guiding rotation of the pair of second blades, and a guide shaft loosely fitted in the guide hole.

In this means, the rotation of the pair of second blade plates is guided while the operation of the guide shaft loosely fitted in the guide hole is regulated by the guide hole.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a biaxial hinge for a folding door according to the present invention; FIG.

FIGS. 1 to 5 show an embodiment of a biaxial hinge for a folding door according to the present invention.

The biaxial hinge 1 for a folding door according to the present invention is rotatably supported on both ends of a first blade plate 2 and both end portions of the first blade plate 2 and abuts against an end face of an adjacent door plate D, respectively. It is schematically composed of a pair of second blade plates 3 that are brought into contact with and fixed to each other, and a guide mechanism 10 that guides the rotation of the pair of second blade plates 3.

The first blade 2 and the pair of second blades 3 are connected by two shafts 8. This allows
The first blade plate 2 and the pair of second blade plates 3 exhibit a substantially U-shape by rotating about the shaft 8 to bend the pair of second blade plates 3. A space Q is formed in the space. Further, a screw hole 3 ′ is formed in the second blade plate 3, and the second blade plate 3 is fixed to an end surface of the door plate D by a screw. Therefore, the second blade plate 3 is always in contact with the end surface of the door plate D, and a gap between the hand and the end surface of the door plate D is not formed. Is prevented.

The guide mechanism 10 includes a block 20 fixed to the first blade plate 2 toward the space Q, and a slide mechanism 30.

The block 20 is made of metal and has a screw hole formed in the thickness direction (the front-rear direction of the door plate D). The screw hole is formed at a position corresponding to the screw hole and the first blade plate 2. The holes are aligned and fixed to the first blade plate 2 with screws. On the side wall 21 of the block 20, the slide member 40 is moved in one of the up and down directions in the width direction of the block 20 (door plate
A step 22 to be fitted within the width direction is formed, and the step 22 is provided with a slide groove 23 over the thickness direction in which the locking piece 41a of the slide member 40 is slidably locked.

The slide mechanism 30 comprises a slide member 40 and a guide mechanism 50. The slide member 40 includes a slide portion 41 having a substantially C shape in a front view and an extension portion 42 provided with a guide mechanism 50. The inner surface 43 of the slide portion 41 can slide along the step portion 22 of the block 20. A locking piece 41 a protruding from a position corresponding to the slide groove 23 is locked in the slide groove 23. The extension portion 42 is formed so as not to be larger than the width of the space portion Q, and extends from the slide portion 40 to the rear surface of the block 20 (the surface on which the first blade 2 is attached).

The guide mechanism 50 has a guide hole 45 formed in the extending portion 42 of the slide member 40 linearly in the width direction, a large-diameter portion 511 and a small-diameter portion 512, and the small-diameter portion 512 has the small-diameter portion 512. The guide shaft 51 is loosely fitted in the guide hole 45. The position of the guide hole 45 coincides with the turning radius area of the guide shaft 51. The guide shaft 51 is provided at both ends of the pair of second blade plates 3 and protrudes from a short end of a guide piece 52 having a substantially L shape and bent from the shaft 8 toward the space Q. The guide piece 52 is provided at one end in the vertical direction of the second blade plate 3 with mounting holes drilled at both ends of the long piece. Is assembled and connected to the second blade plate 3. Thus, the pair of second blades 3 and the slide member 40 are assembled.

Next, the method of using the biaxial hinge 1 for the folding door will be described. First, as shown in FIG. 1, the folding door biaxial hinge 1 can fix and attach the second blade plate 3 to any position in the vertical direction on the end surface of the door plate D. After the folding door biaxial hinge 1 is attached, the door plate D is rotated to perform the closing operation of the folding door.
Starts rotation. At this time, since the guide shaft 51 connected to the pair of second blade plates 3 is about to rotate toward the central portion in the width direction of the first blade plate 2, the guide shaft 5
As 1 moves toward the inside of the guide hole 45, the slide member 40 starts sliding from the front surface to the rear surface of the block 20. In addition, since the pair of second blade plates 3 are assembled to the single slide member 40, both perform the same rotating operation at the same time. Then, the guide shaft 51 is restricted by the inner end of the guide hole 45, and the rotation of the pair of second blade plates 3 is restricted by the block 20, so that the closed state of the folding door (the flush state of the door plate D) is formed. Is done. That is, the pair of second blades 3 becomes parallel, and the first blades 2
And a substantially U-shape is formed between them. This allows
By the guidance of the guide mechanism 10, the pair of second blades 3
Rotates smoothly and reliably without rattling,
Contact with the side wall of the block 20 prevents unnecessary rotation.

In the present embodiment, the block 20 is provided with a holding function for holding the posture of the pair of second blade plates 3 in the closed position. Specifically, the pair of second blade plates 3 is held by a catch made of a synthetic resin cam such as polyacetal made of an elastic body made of the elastic slider 60 and a cam piece 70.

The elastic slider 60 includes a slider 61 slidably accommodated in a slide hole 91 formed substantially at the center of the block 20 in the vertical direction, and a locking portion 6 of the slider 61.
1a comprises a spring 62 for urging the block 20 so as to protrude from the front surface of the block 20. Block 2 of slide hole 91
On the front side of the block 0, there is provided a retaining portion 92 for preventing the slider 61 from coming off the block 20 due to the urging force of the slider 61. Further, the cam piece 70 is opposed to the rotating tip of each of the pair of second blades 3 so as to face the corresponding position of the slider 61 when forming a substantially U-shape at the corresponding position of the slider 61. Is formed in a sickle shape by another member and fixed.

Thus, in combination with the guide mechanism 10 simultaneously rotating the pair of second blade plates 3, the pair of sliders 61 are simultaneously moved with respect to the slider 61 biased by the single spring 62. It is required that the catch and release of the catch be performed simultaneously. As a result, since it is required to be located away from the shaft 8 which is the rotation fulcrum of the pair of second blade plates 3 and to simultaneously rotate the pair of second blade plates 3, the second rotation of the pair is required. The holding force of the second blade plate 3 (door plate D) at the closed position is further enhanced.

Further, in this embodiment, the packing 80 is provided on the end face of the door plate D to absorb the impact of the door plate D when the folding door is closed and to improve the appearance of the joint of the door plate D. . The packing 80 has a trapezoidal shape having a front portion 85 extending from the front base toward the ridge 82.
Of the rear surface portion 86 in which the inclination angle of
Is formed to be larger than the inclination angle Y. Therefore, even if the three blades 2 and 3 form a substantially U-shape and the raised portions 82 of both packings 80 press against each other, the front portion 85 can be largely elastically deformed by the inclination angle X. . Thereby, the packing 80 does not protrude from the front surface of the door plate D, and good appearance is ensured, and the trapezoidal shape of the packing 80 is stabilized, and the shape change of the packing 80 due to the opening and closing operation of the door plate D is prevented. can do.

According to the present embodiment, since the guide mechanism 10 guides the rotation of the second blade plate 3 in a state in which the guide mechanism 10 is compactly assembled without protruding from the width of the space Q, the double shaft for the folding door is used. The hinge 1 can be attached to any part of the door plate D in the vertical direction. Therefore, the single slide member 40 guides the rotation of the pair of second blades 3 in the same operation, and furthermore, by mounting a plurality of doors D in the up and down direction, noise and rattling can be prevented. The suppression power is improved. Further, as compared with the case of manufacturing and using different hinges between the case where the hinge is attached to the upper and lower ends of the door plate D and the case where the hinge is attached to the middle part in the vertical direction, handling such as inventory management becomes easier and the manufacturing cost is reduced.

Further, since the guide mechanism 10 does not protrude from the upper and lower ends of the door plate D, the gap between the upper and lower ends of the door plate D and the rail does not become unnecessarily large. At the same time, when used, the vertical adjustment mechanism of the runner can function effectively.

Next, FIG. 6 shows an embodiment in which a handle is mounted on a biaxial hinge for a folding door with a guide mechanism.

In this embodiment, a handle mounting portion 25 is provided which projects vertically from the upper and lower portions of the front surface of the block 20, and the handle mounting portion 25 is provided with a screw hole 25a. On the other hand, the handle body 26
A handle plate 27 that supports the handle plate 27 is positioned so as to face the front side of the block 20.
A screw hole 26 a is formed from the handle body 26 toward the base of the handle main body 26. When the handle main body 26 is connected to the block 20, the set screw 29 inserted through the screw hole 25 a and the spacer 28 that can cope with the door thickness of the door plate D passes through the screw hole 26 a of the handle plate 27. It is screwed to the base of the handle body 26.

According to the present embodiment, the handle main body 26 can be attached to the biaxial hinge 1 for the folding door without changing the shape or the like of the guide mechanism 10 shown in the above embodiment.
Can be attached. Thereby, the mounting position is limited to a substantially middle portion in the vertical direction of the door plate D,
The rattling of the folding door during opening and closing can be suppressed by the guide mechanism 10, and at the same time, the opening and closing operation of the folding door is performed on the hinge side located at the center of rotation by the attachment of the handle body 26, so that the opening and closing can be performed smoothly. Can be made possible. In other words, the biaxial hinge 1 for the folding door can be provided with a degree of freedom in use while the guide mechanism 10 is provided.

The relationship between the slide groove and the locking piece or the relationship between the guide hole and the guide shaft is not limited to the above-described embodiment, but is similar to that of the present embodiment. If so, the slide groove 23 is provided in the slide member 40 and the locking piece 41a is provided in the block 20 or the guide hole 45 is provided.
Are provided on the guide piece 52 and the guide shaft 51 is provided on the extending portion 42, for example.

[0039]

As described above, the biaxial hinge for the folding door according to the present invention has a compact space of approximately the width of the substantially U-shaped space formed by the three blades, and the hinge of the pair of second blades. Since the rotation can be guided, the door can be freely mounted in the up-down direction. Therefore, an unnecessary gap is not formed at the upper and lower ends of the door plate. For example, when a runner with a vertical adjustment function is interposed, it is possible to prevent the function of the runner from being affected.
Further, the same folding door biaxial hinge can be used regardless of the position of the end face of the door plate at any position, so that the manufacturing cost is reduced and the handling such as inventory management can be facilitated. There is an effect that can be.

Even if a guide mechanism is provided,
Because it is formed compactly without protruding from the substantially U-shaped space formed by the blades, it does not impair the aesthetics of the entire hinge, and it is possible to easily and easily transport a large number of hinges effective.

[Brief description of the drawings]

FIG. 1 is a perspective view of an attached state showing an embodiment of a folding door biaxial hinge according to the present invention.

FIG. 2 is an exploded perspective view in which main parts of FIG. 1 are enlarged.

FIG. 3 is a cross-sectional view of the assembled state of FIG. 2;

FIG. 4 is a plan view of a main part showing an operation state of FIG. 2;

FIG. 5 is a plan view of a main part showing another operation state of FIG. 2;

FIG. 6 is an exploded perspective view showing an embodiment in the case where a handle is provided to the folding door biaxial hinge according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Biaxial hinge for folding doors 2 First blade 3 Second blade 10 Guide mechanism 4 Holding mechanism 5 Adjusting mechanism 6 Elastic piece (elastic body) 6 'Elastic slider (elastic body) 7 Cam piece (cam) 7' Cam piece (cam) 20 block 23 slide groove 30 slide mechanism 40 slide member 41 slide part 41a locking piece 42 extension part 45 guide hole 50 guide mechanism 51 guide shaft 52 guide piece 60 elastic body (elastic slider) 70 cam (cam) Piece) 80 Packing D Door plate Q (substantially U-shaped) space

Claims (6)

(57) [Claims] 1. A folding bi-axial hinge for folding doors, in which three blades are provided in a substantially U-shape between adjacent doors and rotated by two shafts, a first blade and a first blade. A pair of second blades which are rotatably supported at both ends of the door plate and respectively attached and fixed to end surfaces of adjacent door plates, and a guide mechanism which projects from the first blade plate into a substantially U-shaped space. Wherein the guide mechanism guides the rotation of the pair of second blades. 2. The biaxial hinge for a folding door according to claim 1, wherein the guide mechanism comprises a block protruding at a smaller interval than the first blade plate, and a slide mechanism provided on the block. Biaxial hinge for Orido. 3. The biaxial hinge for a folding door according to claim 2, wherein the slide mechanism includes a slide member slidable along a thickness direction of the block, and a pair of slide members provided on the slide member according to the slide of the slide member. A biaxial hinge for an folding door, comprising: a guide mechanism for guiding rotation of the second blade plate. 4. The hinge according to claim 3, wherein the slide member comprises a slide groove provided between the slide member and the block, and a locking piece that locks the slide groove. Biaxial hinge for folding door. 5. The biaxial hinge for a folding door according to claim 3, wherein the guide mechanism is provided on an extending portion extending in a width direction of the slide member. hinge. 6. The hinge according to claim 3, wherein the guide mechanism includes a guide hole for guiding rotation of the second blade plate, and a guide shaft for loosely fitting in the guide hole. Biaxial hinge for folding doors, characterized in that it consists of: