JPH09151664A - Hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably elongate the life of a spring and in its turn a hinge by eliminating grating noise. SOLUTION: A hinge is so constructed that one member and the other member are rotatably fitted to each other, a coiled spring 20 is installed between the members, and one end and the other end of the coiled spring 20 are respectively locked in one member and the other member. Both of the coiled spring locking parts of one member and the other member comprise ring-like grooves 18, 19 for storing at least one turn of the end of the coiled spring and engagement holes 8a, 19a formed in the grooves for the edge of the coiled spring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for applying a rotational biasing force to a door. One member and the other member are rotatably fitted to each other, and a coil spring is mounted between these members. This is an improved hinge structure in which one end and the other end of a spring are locked to the one member and the other member.

[0002]

2. Description of the Related Art In general, a hinge having an elastic body such as a coil spring or a torsion bar is known as a hinge for applying a rotational urging force to a door. A hinge using an elastic body of this type applies a rotation biasing force to the door by a reaction force that twists the elastic body. Since the hinge itself supports the load of the door when the door rotates, the hinge is used as a hinge. Usually, it is formed of a highly rigid metal material. Since the hinge having the torsion bar is generally long in the vertical direction, the hinge is generally machined at the end of the door and is incorporated in the door. In that respect, the hinge using the coil spring,
Since the length in the vertical direction can be made as short as possible, there is an advantage that the door can be externally attached without processing. Recently, hinges using this type of coil spring are often used.

By the way, it is required that the above-mentioned floor-mounting type hinge is provided so that the support is mounted on the floor and the rotation axis of the hinge is vertical. And since the conventional hinge is generally designed and manufactured on the assumption that the floor surface is a horizontal surface, when the floor surface is not horizontal but inclined, the rotation axis of the hinge is also non-vertical. Would. Further, even if the inclination angle of the floor surface is small, the inclination is remarkably reflected in the accommodation of the door installed in the relevant portion, so that the door is erroneously assembled. Therefore, conventionally, to make the floor surface of the portion where the hinge is provided horizontal, for example, by biting a thin metal plate or digging up the portion, the hinge installation portion is made horizontal by some means. I had no choice.

Therefore, the present inventor can easily and surely bring the rotation axis of the hinge vertically even if the floor surface is inclined, without the conventional horizontal plane construction. And a hinge device that facilitates adjustment of the built-in door (see Japanese Patent Application No. Hei 5-23990).
issue).

[0005]

In the hinge used in this hinge device, one member and the other member are rotatably fitted to each other, and a coil spring is mounted between these members. The other end is locked to the one member and the other member, and further, the one member is provided with a tubular portion for accommodating a metal ball, and the other member is inserted into the tubular portion and the tip thereof is A shaft portion that comes into contact with the ball is provided.

[0006] The above-mentioned hinge has a plurality of balls which are required in the prior art by arranging a metal ball at the center of the hinge. Was able to be achieved.

Since then, the hinge device has been implemented, and the durability record as initially confirmed by the durability test is being improved. Among them, although relatively low in proportion, there are some that cause the squeaking noise of the coil spring.

The inventors of the present invention pursued the cause by partially penetrating the side wall of the hinge. As a result, the coil springs are deformed due to the contraction and expansion of the coil springs when the hinge is rotated, and the coil springs or the coil springs are deformed. It was found that the side walls made contact and produced a squeaking noise.

An object of the present invention is to provide a hinge having a structure capable of eliminating the squeaking noise and dramatically increasing the life of the spring and hence the hinge.

[0010]

According to the present invention, one member and the other member are rotatably fitted together, a coil spring is mounted between these members, and one end and the other end of the coil spring are connected to the one member. A ring-shaped groove for accommodating at least one end portion of the coil spring, and the groove formed in the coil spring locking portion of the one member and the other member. And a engaging hole for a coil spring end edge according to the present invention.

When the coil spring is deformed due to the contraction and expansion of the coil spring during hinge rotation, at least one turn of both ends of the coil spring is housed in the ring-shaped groove at both ends of the coil spring. Then, it was confirmed that the coil spring was deformed while maintaining the original posture of the coil spring. That is, since the coil springs are deformed while being aligned, contact between the coil springs or between the coil springs and the side wall is avoided, and as a result, squeaking noises are prevented from occurring, and the spring and the life of the hinge are dramatically increased. It can be made long.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to specific examples shown in the drawings.

FIG. 1 is a vertical cross-sectional view showing a hinge device incorporating the hinge of this embodiment. In FIG. 1, the hinge device includes a hinge 1 and a pedestal 32 which is a hinge receiving member installed on a floor surface 41. It is composed of a combination of.

In the hinge 1, one member and the other member are rotatably fitted together, and a coil spring is mounted between these members. In this example, the support member 2 is a non-rotating member. The rotary support 9 is a rotary member, and the coil spring 20 is mounted between them.

As shown in FIGS. 2 to 4, the support 2 is provided with a flange portion 3 at an intermediate portion in the vertical direction, a cylinder portion 4 is provided above the flange portion 3, and a flange portion 3 is provided below the flange portion 3. ,
A convex portion 5 having a triangular concave-convex portion 6 is formed on the periphery of the convex portion that protrudes downward, and the lower surface 7 of the convex portion 5 is formed into a convex spherical surface. . The flange portion 3 is formed with a ring-shaped groove 8 for accommodating at least one turn of the end portion of the coil spring 20 and an engaging hole 8a for the coil spring end edge 20a formed in the groove 8. . Further, as shown in FIG. 1, a rotation support portion 9 is rotatably attached to the support body 2.

The rotation support portion 9 has a cylindrical body 10 which is opened vertically as shown in FIGS. 5 and 6, and, as shown in FIGS.
It is composed of a rotating shaft 12 provided in the cylindrical body 10. That is, the rotating shaft 12 is formed such that the upper part is formed on the large diameter part 13 and the lower part is formed on the shaft part 14 protruding downward, and the outer diameter of the large diameter part 13 is formed to a diameter that can be inserted into the cylindrical body 10. As shown in FIG. 1, a screw 15 is screwed into a screw hole 11 provided from the cylindrical body 10 to the large-diameter portion 13 so that the rotating shaft 12 and the cylindrical body 10 are integrally fixed. .

Then, as shown in FIG. 1, the rotation support portion 9
Of the liner bearing 1 on the flange 3 of the support 2
6, the lower part of the rotating shaft 12 is inserted into the cylindrical part 4 of the support 2 via a liner bearing 17, and the shaft part 1 of the rotating shaft 12
Reference numeral 4 denotes a conical surface whose lower surface is depressed upward, and a metal ball 18 is interposed between the shaft portion 14 of the rotary shaft 12 and the cylindrical portion 4. Therefore, the rotation shaft 12 can rotate around the axis of the vertical axis with respect to the support 2 together with the cylindrical body 10.

The large diameter portion 13 of the rotary shaft 12 has a ring-shaped groove 19 for accommodating at least one end portion of the coil spring 20, and an engagement for the coil spring edge formed in the groove 19. The hole 19a is formed.

Further, in FIG. 1, the coil spring 20 shown in FIG. 10 is arranged around the cylindrical portion 4 and the shaft portion 14, and as described above, one end portion of the coil spring 20 is wound. The rotary shaft 12 is housed in the groove 19 of the large diameter portion 13 and the groove 8 of the flange portion 3, one end 20a of the coil spring is in the engagement hole 19a of the large diameter portion 13, and the other end is the flange portion 3 of the support body 2. Is inserted into and engaged with the engagement hole 8a. Therefore, when the rotating shaft 12 rotates, the supporting body 2 is a non-rotating body as will be described later, so that the biasing force is accumulated in the coil spring 20.

Further, as shown in FIG. 7, a female screw portion 21 is formed in the center of the upper portion of the large diameter portion 13, and a lower end portion of a height adjusting screw 22 is screwed to the female screw portion 21. Is fixed by a set screw (knock pin).

As shown in FIG. 1, the cylindrical body 10 has a large diameter portion 1
The screw 15 screwed through the screw hole 11 provided in 3.
Thereby, it is fixed to the large diameter portion 13. Then, the other end of the height adjusting screw 22 is inserted into an insertion hole formed upward from the lower end in the door 27 through the height adjusting female screw 23 and the hole 29 of the lower plate 28. The height adjusting female screw 23 and the lower plate 28 are fixed by screws or welding. The lower plate 28 is fixed to the lower end of the door 27 with wood screws, screws and the like.

For height adjustment, the height adjusting screw 22 is turned with respect to the height adjusting female screw 23 to adjust the distance between the door 27 and the cylindrical body 10, and then the height adjusting female screw 23 is formed. This is performed by tightening and fixing a set screw (not shown) in a certain screw hole 24, and fixing the height adjusting screw 22 to the height adjusting female screw 23.

The upper portion of the door 27 has an upper plate 45.
And is supported by the upper plate 48 (see FIG. 11). The upper plate 45 is attached to the upper end surface of the door 27 and has a top pin 46 projecting upward. In addition, a headstock 47 is attached to the fixed side such as the ceiling.
The upper plate 48 is fixed to the horizontal plate by screws or the like. Then, the top pin 46 of the upper plate 45 is rotatably inserted through a sleeve bearing 50 into a hole 49 provided in the head 47 and the upper plate 48. In the figure, 5
Reference numeral 2 denotes a wall portion made of a panel or the like.

As shown in FIGS. 1 and 13, the pedestal 32 is formed in a circular shape with a peripheral edge 33 bent downward, and supports the convex portion 5 of the support body 2 in the central portion. Recess 3
4 is formed, and a floor surface mounting hole 38 fixed to the floor surface with a screw 35 is provided around the recess 34. The recess 34 is a hemispherical recess formed in the center of the pedestal 32, and the central bottom surface 36 of the recess.
Is formed as a concave spherical surface, and an uneven portion 37 is formed around the concave spherical surface. The support 2 is placed in the recess 34.
The convex portion 5 is fitted and supported.

Therefore, although the convex portion 5 of the support body 2 cannot rotate with respect to the pedestal 32 due to the engagement of both concave and convex portions, the support body 2 is inclined within a predetermined range of angle with respect to the pedestal 32 due to both spherical surfaces. Even if the pedestal 32 inclines with the inclination of the floor surface, the support can be installed vertically.

Next, the operation of the hinge 1 having the above construction will be described. When the door 27 rotates, for example, clockwise,
Accordingly, the rotation supporting portion 9 of the hinge 1 also rotates clockwise, while the support 2 is prevented from rotating by the pedestal 32. The diameter is increased, and the biasing force in the opposite direction is accumulated in the coil spring 20. Then, when the door 27 is opened, the door 27 is returned to the preset stationary position by the biasing force accumulated in the coil spring 20. Similarly, when the door 27 is rotated counterclockwise, the door 27 is returned to the preset rest position by the biasing force accumulated in the coil spring 20.

Further, since the convex portion 5 of the support body 2 is formed in a multi-faceted manner and the tip is formed into a spherical surface, and the pedestal 32 is formed with the concave portion 34 which fits into the convex portion 5, the hinge 1 is placed on the floor surface. At the time of installation, for example, even when the floor surface 41 is inclined by 3 ° where it is difficult to install the hinge as it is conventionally, the rotation support portion 9 and the support body 2 of the hinge 1 can be set vertically. As a result, the work of adjusting the building of the door 27 becomes easy.

Further, when the coil spring is deformed due to the contraction and expansion of the coil spring during hinge rotation, at both ends of the coil spring, at least one turn of both ends of the coil spring is a ring-shaped groove 8. , 19, the coil spring 20 is deformed while maintaining the original posture of the coil spring, that is, the coil spring is deformed while being aligned. Therefore, it is possible to avoid contact between the coil springs or between the coil springs and the side wall, and as a result, it is possible to prevent the squeaking noise from being generated, and to prolong the life of the spring and the hinge dramatically. Incidentally, this kind of hinge is generally required to endure opening and closing of 500,000 times. When the hinge of this example was carried out and a durability test was conducted,
The result is that it can endure opening and closing more than 1 million times.

Next, a second embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 14, the hinge 1 of this example is of a door built-in type. That is, in the previous example, the hinge 1 is provided at the lower end of the door 27, whereas in the present example, the hinge 1 is incorporated in the lower part of the door 27.

The hinge 1 is basically the same as that of the previous example. That is, in the hinge 1, one member (the support body 2 in this example) and the other member (the rotation support portion 9 in this example) are rotatably fitted, and the coil spring 20 is mounted between these members, A hinge in which one end and the other end of a coil spring are locked to the one member and the other member. Further, as shown in FIGS. 15 to 17, both of the coil spring locking portions of the one member and the other member are Ring-shaped grooves 8 and 1 for accommodating at least one end of the coil spring
9 and an engaging hole 8 for the edge of the coil spring formed in the groove
a and 19a. The same components as those in the previous example are designated by the common reference numerals, and detailed description thereof will be omitted.

In the case of this example, a lower plate 28 is welded to the lower portion of the cylinder 10 and the lower plate 28 is attached to the door 27.
It is attached to the lower end of. Further, the convex portion 5 of the support body 2 is fitted and supported by a pedestal (not shown) similar to the pedestal 32 of the previous example.

Also in the case of this example, when the door 27 rotates, for example, in the clockwise direction, the rotation support portion 9 of the hinge 1 is accompanied with this.
Also rotates clockwise, while the support 2 is prevented from rotating by the pedestal 32. Therefore, the diameter of the coil spring 20 is reduced or expanded in accordance with the rotation of the rotation support portion 9, and the coil spring 20 is rotated in the opposite direction. The urging force is accumulated. Then, when the door 27 is opened, the door 27 is returned to the preset stationary position by the biasing force accumulated in the coil spring 20. Similarly, when the door 27 is rotated counterclockwise, the door 27 is returned to the preset rest position by the biasing force accumulated in the coil spring 20.

Furthermore, when the coil spring is deformed due to the contraction and expansion of the coil spring during hinge rotation, at both ends of the coil spring, at least one turn of both ends of the coil spring is a ring-shaped groove 8. , 19, the coil spring 20 is deformed while maintaining the original posture of the coil spring, that is, the coil spring is deformed while being aligned. Therefore, it is possible to avoid contact between the coil springs or between the coil springs and the side wall, and as a result, it is possible to prevent the squeaking noise from being generated, and to prolong the life of the spring and the hinge dramatically.

[0035]

Since the present invention is configured as described above, at the time of hinge rotation, when the coil spring is deformed due to the contraction and expansion of the coil spring, at least at both ends of the coil spring. When one turn of both ends of the coil spring is housed in the ring-shaped groove, the coil spring deforms while maintaining the initial posture of the coil spring, that is, the coil spring deforms while being aligned, Contact between the coil springs or between the coil springs and the side wall is avoided, and as a result, the generation of squeaking noise is prevented, and the life of the spring and the hinge can be remarkably extended.

[Brief description of the drawings]

FIG. 1 is a half sectional view showing a hinge device according to a first example of the present invention.

FIG. 2 is a half sectional view showing a support.

FIG. 3 is a bottom view of the support.

FIG. 4 is a perspective view of a support.

FIG. 5 is a plan view of a cylindrical body.

FIG. 6 is a half sectional view of a tubular body.

FIG. 7 is a half sectional view of a rotating shaft.

FIG. 8 is a bottom view of a rotating shaft.

FIG. 9 is a perspective view of a rotating shaft.

FIG. 10 is a vertical sectional view of a coil spring.

FIG. 11 is a front view showing how the hinge is attached.

12 is a view on arrow XX in FIG. 11. FIG.

FIG. 13 is a plan view of a pedestal.

FIG. 14 is a half cross-sectional view showing a hinge according to a second example of the present invention.

FIG. 15 is an exploded configuration diagram showing a hinge according to the second example of the present invention.

FIG. 16 is a perspective view of a support.

FIG. 17 is a perspective view of a rotating shaft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hinge 2 Support 3 Flange part 4 Cylindrical part 5 Convex part 6 Concavo-convex part 7 Lower surface 8 Groove 8a Engagement hole 9 Rotation support part 10 Cylindrical body 11 Screw hole 12 Rotating shaft 13 Large diameter part 14 Shaft part 15 Screw 16 Liner bearing 17 Liner Bearing 18 Metal Ball 19 Groove 19a Engagement Hole 20 Coil Spring 20a Coil Spring Edge 21 Female Thread Part 22 Height Adjusting Screw 23 Height Adjusting Female Thread 24 Screw Hole 27 Door 28 Lower Plate 29 Hole 32 Pedestal 33 Peripheral edge 34 Recessed portion 35 Screw 36 Center bottom surface 37 Uneven portion 38 Floor mounting hole 41 Floor surface 45 Upper plate 46 Top pin 47 Kasaki 48 Upper plate 49 Hole 50 Sleeve bearing

Claims (2)

[Claims] 1. A first member and a second member are rotatably fitted together, and a coil spring is mounted between these members,
In a hinge in which one end and the other end of the coil spring are locked to the one member and the other member, both ends of the coil spring are housed in both of the coil spring locking parts of the one member and the other member. A hinge having a ring-shaped groove and an engaging hole for a coil spring edge formed in the groove. 2. The one member is provided with a tubular portion for accommodating a metal ball, and the other member is provided with a shaft portion that is inserted into the tubular portion and has its tip abutting against the ball. The hinge according to claim 1, wherein the hinge is provided.