JP2001262921A - Biaxial hinge structure of easily mountable/demountable type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biaxial hinge structure of easily mountable/demountable type which can make easy attaching/detaching to and from a door and ensures a firmly connected condition between the hinge and the door after the mounting. SOLUTION: A two sets of upper and lower biaxial hinges H1, H2 are provided at a single door A. They are mutually symmetrical with respect to a horizontal line. A horizontal insertion piece 11 is formed at a movable blade 10 of each of biaxial hinges. A movable blade fixing fitting 15 forms a support pocket 28 into which the piece 11 is inserted is formed in a space with the door A when the attaching is made to the door A. In the pocket 23, a spring type nonreturn lock pawl 2 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention provides two parallel pivots about the center of rotation, and allows a door to be widened by 90 to 180 degrees with respect to a fixed frame such as a cabinet body or a switchboard storage box body. There is a biaxial hinge that can be releasably equipped.

[0002]

2. Description of the Related Art Conventionally, a biaxial hinge of this type, which was previously developed by the applicant of the present invention, is known as Japanese Patent No. 2628140, and has achieved considerable results. However, in these cases, both the fixed wing plate and the movable wing plate are generally directly screwed to the fixed frame and the door. Although this procedure is not described in the prior art publication, first, the fixed blade of the biaxial hinge is screwed to the fixed frame, and then the door is screwed to the movable blade. Supporting and screwing work is almost impossible with a single worker, requiring two or more workers, increasing construction costs. Similarly, when exchanging a door, the door removing operation is also troublesome and requires considerable skill to prevent the door from being damaged.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a biaxial hinge structure in which the door can be easily attached and detached, and the biaxial hinge and the door are firmly connected after the installation. It is to be.

[0004]

Means for Solving the Problems In order to solve the above problems, in the biaxial hinge structure of the present invention, a single door A is provided with two sets of upper and lower hinges, and each set of hinges is a fixed blade plate. , The intermediate connecting plate and the movable wing plate are successively connected by two parallel pivots as biaxial hinges H1 and H2, and each pair of biaxial hinges H1 and H2 has a line-symmetric shape with respect to a horizontal line. The movable wing plate 10 of each biaxial hinge is formed with a horizontal insertion piece 11 pivotally attached to the intermediate connecting plate 30 of the intermediate continuation, and is fixed to the door A. Hardware 15
When mounted on the door A, a horizontal support pocket 23 into which the horizontal insertion piece 11 can be inserted can be formed between the door A and the horizontal insertion piece 11. At the fully inserted position, there is provided a spring-type check lock claw 22 which engages with the completely inserted position. At the position where the horizontal insertion piece 11 is completely fitted to the movable wing plate fixing bracket 15, it completely matches. Screw holes 25 for fixing
And a screw passing hole 26, and a fixing screw passing therethrough is provided.

Further, in order to solve the above-mentioned problem, in the biaxial hinge structure of the present invention, the spring-type check lock pawl 22 is located outside the movable wing plate fixing bracket 15 and is provided with a pocket 23
The part of the leaf spring 20 that is cantilevered near the back end of the
It is punched out in the shape of a letter, is formed in the back of the pocket, and engages with a non-return lock claw provided on the horizontal insertion piece 11 through a lock claw clearance square hole 18 provided on the movable wing plate fixing bracket 15. The spring type non-return lock claw 22 is provided in the engagement angle hole 14 so as to be engageable.
It is preferable that the spring type check lock pawl 22 can be separated from the hooking square hole 14 by separating the movable blade 4 from the movable wing plate fixing bracket 15.

In order to solve the above-mentioned problem, the fixed wing plate 1, the intermediate connecting plate 30 and the movable wing plate 30 are provided so as to be temporarily locked by a click mechanism at positions of 0 ° and 90 °, respectively. Is preferred.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The biaxial hinges H1 and H2, which are prerequisites of the present invention, are configured as follows. The biaxial hinges shown in FIGS. 2 to 4 are attached to upper and lower portions of the door A (see FIGS. 1 and 2). The upper and lower two sets of biaxial hinges H1 and H2 are vertically symmetrical with respect to the horizontal line as shown in FIG. 2 and are almost the same in function. Therefore, only one biaxial hinge will be described. . First, the biaxial hinge H1 will be described. This is an embodiment including the inventions described in claims 1 to 3. 1 to 4, a fixed wing plate 1 is provided with a fixed wing plate base 2 made of a vertical wall which is in contact with a fixed frame B and is screwed to the fixed wing plate 1. Is connected at one end of the intermediate connecting plate 30 by a fixed-side pivot 3. A second horizontal pivot portion 13 of the movable wing plate 10 is pivotally connected to the other end of the intermediate connecting plate 30 by a movable pivot 12. The fixed-side pivot 3 and the movable-side pivot 12
And are parallel to each other.

In the embodiment of the present invention, a part of the movable vane plate 10 of the biaxial hinge H1 is formed on a horizontal insertion protruding piece 11, and a spring type non-return lock is provided at an intermediate portion thereof. An engaging angle hole 14 for engaging the claw 22 is provided. In order to attach the horizontal insertion projection 11 to the door A, a separate movable wing plate fixing bracket 15 is first attached to the door A.
When the movable wing plate fixing bracket 15 is attached to the door A below the presser horizontal portion 19 that contacts the upper surface of the door A,
3 are formed by pressing to form bases 16, 1.
7 is formed with a step. On the other hand, the thing attached to the lower part of the door A includes a presser horizontal portion 19 that contacts the lower surface of the door A, and the upper part of the presser horizontal part 19 between the movable wing plate fixing bracket 15 and the door A. The pressing portions 16 and 17 are pressed to form the lateral pockets 23.
Are formed with steps.

The pocket 23 (lower edge or upper edge) and the metal bases 16 and 17 at the back of the pocket 23 are brought into contact with the door A, and the door A is provided so that it can be firmly fixed to the door A by screws or the like. (See FIG. 1). By doing so, the central portion 15a raised from the metal fitting bases 16 and 17 and the door A
A pocket 23 is formed therebetween. In the middle portion of the pocket 23 of the movable wing plate fixing bracket 15, a lock claw escape square hole 18 is provided at a position corresponding to the position of the engaging square hole 14 when the horizontal insertion protrusion 11 is completely inserted into the pocket 23. It is provided.

A leaf spring 20 is cantilevered by a leaf spring cantilever base 21 at one end of the pocket 23 on the outer side of the movable wing plate fixing bracket 15 in the pocket 23 portion.
The leaf spring 20 has an intermediate portion cut into a square U-shape to form a spring-type non-return lock claw 22 facing the depth direction of the pocket 23, and passes through the lock claw escape square hole 18. The tip is projected into the pocket 23.

The pivot portions of the fixed wing plate 1, the intermediate connecting plate 30, and the movable wing plate 15 can be temporarily stopped at a 0-degree position and a 90-degree position by a click mechanism (not shown). It is provided. The structure of the click mechanism is not particularly limited.

The operation of the first to third aspects of the present invention will be described together with the operation of the above-described embodiment. First, fixed frame B
The lower and upper and lower biaxial hinges H1 and H2 are fixed. If the door A is a reverse hand, the upper and lower biaxial hinges H1 and H2
Is placed upside down. Next, corresponding to this position, the upper and lower movable wing plate fixing brackets 15 are fixed to the door A. Next, together with the movable wing plate 10, 90
Or 180 degrees. With this configuration, in the invention according to claim 3, the angle of the movable blade is not changed by the click mechanism. Thus, to assemble the door A to the two sets of biaxial hinges H1 and H2 attached to the fixed frame B, lift the door A slightly,
The horizontal insertion protrusion 11 is inserted into upper and lower pockets formed by the upper and lower movable wing plate fixing brackets 60 and the door A.

Then, the horizontal insertion protruding piece 11 is
Of the spring-type check lock claw 22
Is engaged with the engaging angle hole 14 provided in the horizontal insertion protruding piece 11, and the door A is assembled to the fixed frame B via two sets of upper and lower biaxial hinges.

When the door A is removed from the fixed frame B, the leaf spring 20 is bent so that the spring-type check lock pawl 22 is engaged with the square hole 1.
4, the door A is tilted in the plane, and then the door A is removed in the reverse order of the assembly.

After the door A is mounted, the horizontal insertion protrusion 11 is completely inserted into the pocket 23 so that an excessive load is not continuously applied to the spring-type check lock pawl 22 when the door A is used. At this time, a screw 27 such as an appropriate screw or tapping screw is screwed into the screw hole 25 of the horizontal insertion protruding piece 11 through the screw through hole 26, and the horizontal insertion protruding piece 11 is fixed to the movable wing plate fixing bracket. Thereafter, no excessive load acts on the spring-type check lock 22, and the lock does not buckle. Further, the lower standing insertion protruding piece 52 and the lower movable wing plate fixing plate 60 may be fixed by screws 63.

[0016]

According to the first aspect of the present invention, which has the above-described configuration and performs the above-described operation, it is extremely easy to attach and remove the door A. That is, the upper or lower biaxial hinge H
1 or H2, the horizontal insertion projection 11 is slightly inserted, and then the other horizontal insertion projection 11 is inserted and pushed in all at once. Is mounted on the biaxial hinges H1, H2. Even one worker can work satisfactorily, and an excessive force does not act on the door A and the two sets of biaxial hinges during the installation and removal work, and the workability is good.
Further, upper and lower biaxial hinges H1, H2 and movable blade fixing bracket 1
5 is a shape which is symmetrical with respect to the horizontal line with respect to the horizontal line, so that even if the door A is left-handed or right-handed, it is only necessary to reverse the upper and lower mounting positions. Very easy to manage. The fixed blade 1 and the intermediate connecting plate 30, and the intermediate connecting plate 30 and the movable blade 10 of the biaxial hinges H1 and H2 are provided so as to be temporarily stopped by the click mechanism at the positions of 0 degrees and 90 degrees, respectively. During the mounting operation of the door A, the direction of the movable wing plate 10 does not change unnecessarily, and the horizontal insertion projection 11 is easily inserted into the pocket 23 formed by the door A and the movable wing plate fixing bracket 15. When the door A is fixed to the fixed frame B via the two sets of biaxial hinges H1 and H2, the door A
Are easy to handle because they are temporarily stopped at the 90-degree open position and the 180-degree open position sequentially.

According to the second aspect of the present invention, since the spring-type check lock pawl 22 is formed as a part of the leaf spring 20, there is almost no resistance when the horizontal insertion projection 11 is inserted, and the engagement is secure. The release of the engagement with the engagement angle hole 14 can be easily released by slightly bending the leaf spring 20 with a driver or the like, and no special tool is required.

According to the third aspect of the present invention, by providing the screw holes 25 and the screw through holes 26 for fixing, an excessive load is not applied to the spring-type check lock pawls 22.
There is no danger of this buckling, and the door A is stabilized if it is fixed with the set screw 27 or the like. Further, since the peripheral edge of the upright insertion protruding piece 52 is the arc peripheral edge 53, the door A around the upright insertion piece 52 smoothly extends from a vertical line to a range of 20 to 30 degrees from a vertical line in a plan view including the surface thereof. It can be rotated, and the work of inserting and removing the horizontal insertion protruding piece 11 and the movable wing plate fixing bracket 15 from the upper pocket 23 is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an assembled state of a biaxial hinge mounted on an upper part of a door A in a biaxial hinge structure according to an embodiment of the present invention.

FIG. 2 is a front view when a biaxial hinge is mounted on each of upper and lower portions of a door A;

FIG. 3 is a plan view of the biaxial hinge of FIG. 1;

FIG. 4 is a cross-sectional plan view of a spring-type stop lock claw portion in the biaxial hinge of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fixed wing plate 2 fixed plate base 3 fixed-side pivot 4 first horizontal pivot portion of fixed wing plate 10 movable wing plate 11 horizontal insertion protruding piece 12 movable-side pivot 13 second horizontal pivot portion of fixed wing plate 14 check Engagement hole for engaging lock claw 15 Movable wing plate fixing bracket 16 Metal base 17 Metal base 18 Lock claw escape square hole 19 Holding horizontal part 20 Leaf spring 21 Leaf spring cantilever base 22 Spring-type check lock claw 23 Pocket 24 Free End 25 Screw hole 26 Screw through hole 27 Screw 30 Intermediate connecting plate 31 Connecting plate standing rib

Claims (3)

[Claims] 1. A single door A is provided with two sets of hinges, upper and lower, each of which includes a fixed wing plate, an intermediate connecting plate, and a movable wing plate which are successively connected by two parallel pivots. Shaft hinge H1,
H2, and each pair of the biaxial hinges H1 and H2 has a symmetrical shape with respect to the horizontal line, and the movable vane plate 10 of each biaxial hinge is an intermediate connection of the intermediate series. A horizontal insertion piece 11 pivotally attached to the plate 30 is formed.
A horizontal support pocket 23 into which the horizontal insertion piece 11 can be inserted can be formed between the horizontal insertion piece 11 and the door A, and the horizontal insertion piece 11 can be completely inserted into the support pocket 23. At the set position, a spring-type check lock claw 22 is provided which engages with the fixed position. When the horizontal insertion piece 11 is completely fitted to the movable wing plate fixing bracket 15, it is fixed at a completely coincident position. A simple detachable two-shaft hinge structure in which a screw hole 25 and a screw through hole 26 are provided and a fixing screw is inserted therethrough. 2. The spring type non-return lock claw 22 is provided outside the movable wing plate fixing member 15 and is provided with a part of a leaf spring 20 cantilevered at a position near the back end of a pocket 23 in a square U-shape. And a hook hole formed in the back of the pocket and engaging with a non-return lock claw provided in the horizontal insertion piece 11 through a lock claw escape hole 18 provided in the movable wing plate fixing bracket 15. 14, the spring-type check lock claw 22 is provided so as to be engageable. When the free end 24 of the spring 20 is separated from the movable wing plate fixing bracket 15, the spring-type check lock claw 22 is engaged with the engaging square hole. The simple detachable biaxial hinge structure according to claim 1, wherein the biaxial hinge structure is detachable from the hinge. 3. The fixed wing plate 1, the intermediate connecting plate 30, and the movable wing plate 30 are provided so as to be temporarily locked by a click mechanism at positions of 0 ° and 90 °, respectively. Or the simple detachable biaxial hinge structure according to claim 2.