JP2001090423A - Moving joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a joint, in which a kind of a joint part may be prepared and the number of parts can be decreased and which is assembled easily. SOLUTION: In the moving joint, one or more of projecting shafts are installed in a base section arranged in a pectinate shape while joint parts in which bearing sections in the same number as the projecting shafts are mounted in the base section are inverted and engaged mutually at the centers of the shafts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a hinge-shaped part.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 9, for example, a receiving part 22, an insertion part 23 and a shaft 24 are used as hinge parts 21.
Is known. The receiving part 22 and the inserting part 23 have holes 25 and 26, respectively.
Is provided. In assembling the hinge part 21, the insertion part 23 is inserted into the receiving part 22 so that the holes 25 and 26 are coaxially aligned.
The shaft rod 24 is inserted so as to penetrate the hole 26.

[0003]

However, the shaft rod 2
In order to let 4 pass through holes 25 and 26, holes 25 and 26
Must be coaxially matched, so that the operation is complicated. Further, since the hinge part 21 cannot be moved if the shaft rod 24 is bent or broken, the strength is not sufficient with the synthetic resin, and the shaft rod 24 often loses its function due to deformation after molding or cracking during use. For this reason, metallic ones are generally used. SUMMARY OF THE INVENTION An object of the present invention is to provide a hinge having a small number of parts, easy assembly, and low functional loss.

[0004]

According to the present invention, one or more protruding shafts are provided on a base arranged in a comb shape, and the same number of bearings as the protruding shafts are coaxially provided on the base. The present invention relates to a movable joint in which provided joint parts are reversely engaged about an axis.

[0005] The present invention relates to the movable joint made of synthetic resin. The present invention relates to the movable joint, wherein an introduction portion is provided near a front end of a wall surface connected to the bearing portion, and an introduction receiving portion connected to the base portion is provided.

The present invention is characterized in that at least one of the base tip and the bearing bottom is arc-shaped, the other is arc-shaped or polygonal, and the tip of the protruding shaft is circular or polygonal. To the movable joint.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an example of a movable joint according to the present invention. FIG. 2 is a perspective view showing an example of a movable joint according to the present invention, which is movable from the state of FIG. FIG. 3 is an example of a movable joint according to the present invention, and is a perspective view showing a state before another joint part is reversely engaged with another joint part. FIG. 4 is a perspective view of the joint part according to the present invention. FIG. 5 is a cross-sectional view showing an example, and FIG. 5 is an example of a movable joint according to the present invention, and is a cross-sectional view showing a state in which another joint part is being reversely engaged with another joint part, and FIG. FIG. 4 is a cross-sectional view showing a state in which another joint part is reversely engaged with another joint part in an example of the movable joint according to the present invention.

The present invention relates to one or more protruding shafts 1.
Are provided on the base 3 arranged in a comb-like shape, and the same number of the bearings 2 as the protruding shafts are provided on the base at the same axis as the protruding shafts. The present invention relates to a movable joint characterized by becoming a movable joint 11 by being engaged.

This joint part may be made of metal or synthetic resin, but the synthetic resin is free of rust, can be easily formed by a free shape, and is made of a lightweight material utilizing the durability strength of each material used. It is preferable because it can be performed.

When the joint part 10 is engaged with another joint part 10 from the inverted state shown in FIG. 3 as shown in FIG. 5, first, the introduction part 5 connected to the distal end of each base part 3 is projected. It contacts the shaft tip 7. The introduction section 5 is provided with a slope A, and after the introduction sections 5 come into contact with each other, the projecting shaft 1 follows the slope A.
Is guided to the bearing portion 2 and the state shown in FIG. 5 is obtained. FIG.
In this state, the corner of the second introduction part 6 contacts the second introduction receiving part 9. The second introduction receiving portion 9 is provided with a slope B,
After the corner of the second introduction portion 6 comes into contact, the protruding shaft 1 is guided to the bearing portion 2 along the inclination B. Then, when the protruding shaft 1 gets over the bearing portion 2 and enters inside, the movable joint 11 shown in FIG. 1 or FIG. 6 is obtained.

If a plurality of joint parts 10 are formed of a synthetic resin as described above, the joint parts 10 are invertedly engaged with each other to form the movable joint 11, and the number of parts can be reduced to one.

It is necessary to provide an even number of bases 3, and usually 4 to 6 bases 3 are provided. However, when a long movable joint is required, the number of bases 3 may be further increased by a necessary number.

The angles of the slopes A and B are usually between 5 ° and 70
°, preferably 30 ° to 45 °.

At least one of the base tip 8 and the bearing bottom 4 has an arc shape, and the other has an arc shape or a polygon shape. Further, the bearing portion 2 is formed in an arc shape, and the protruding shaft tip 7
Is made into an arc shape or a polygonal shape. The shape of the bearing portion 2 may be a polygonal shape, but in that case, the shape of the protruding shaft tip portion 7 needs to be an arc shape.

Further, in order to prevent sink marks and the like during molding,
The rib shape may be maintained while maintaining the outer peripheral shape.

The base tip 8, the bearing bottom 4, the bearing 2, and the projecting shaft tip 7 can be moved as shown in FIGS. That is, in the joint after the engagement, the protruding shaft tip 7 of one joint part and the bearing part 2 of the other joint part face each other. When engaged, at least one such opposing condition is formed in the joint. Similarly, the bearing bottom 4 and the base tip 8 also face each other. As a result, the protruding shaft tip 7 and the bearing 2 slide, and the bearing bottom 4 and the base tip 8 slide and rotate.

A second introduction portion 6 is provided on the back surface of the base 3 having the protruding shaft 1 or the bearing portion 2.
When the joint after engagement is in the state of FIG. 1, the second introduction part 6 of one joint part and the second introduction part 6 of the other joint part are opposed to each other. When engaged, at least one such opposing condition is formed in the joint.

In FIG. 3, the second introduction part 6 is described as a single wall having a relatively small thickness. In such a case, it is possible to further increase the angle at which the engagement can be performed without releasing the engagement.

It is also possible to provide two or more thin walls at appropriate intervals as a second introduction portion per one base. In the case where two thin walls are provided at a suitable interval as the second introduction part per one base, the same effect as when only one wall having the above thickness is provided can be expected.

If necessary, it is possible to incorporate into the joint part a structure which allows it to be disassembled and assembled into two joint parts only when arranged at a predetermined angle. In an ordinary use state, an angle formed between one mounting portion 12 and the other mounting portion 12 is selected so that the mounting portion 12 is not arranged to be the predetermined angle in a normal use state. The movable joint does not come off during use.

The mounting portion 12 may be omitted, but usually, as shown in FIG. 7, a hole for a bolt is made in this portion, and the mounting portion 12 is fixed to the plate 14 or the like to be moved. Alternatively, as shown in FIG. 8, the mounting portion 12 may be fitted in a groove 13 or the like provided in a plate 14 or the like in which it is desired to move. Alternatively, the mounting portion 12 may be adhered to a plate 14 or the like on which the movable portion 12 is to be moved using a double-sided adhesive tape or an adhesive. If the plate 14 or the like to be moved is made of the same material as the movable joint 11 and can be thermally welded, the mounting portion 12 may be thermally welded.

Furthermore, the movable joint part and the movable joint 11 obtained therefrom are usually made of a synthetic resin such as a polyethylene resin, a polypropylene resin, a polycarbonate resin, a nylon resin, a styrene resin, an ABS resin, or a resin thereof. Is molded using a resin reinforced with glass fiber or the like. If the plate 14 or the like to be moved is made of the same material as the movable joint 11, the plate 14 or the like to be moved and the joint part 10 are simultaneously molded and integrated. Is also good.

The movable joint of the present invention is obtained by reversely engaging two of the same joint parts as described above.
It is preferable to use the joint so as not to move so as to cause a large displacement in the direction opposite to the direction in which the respective joint parts are engaged with the shaft center, since this engagement cannot be easily released. In the example of FIG. 6, for example, the upper joint part is moved to the left and the lower joint part is moved to the right, so that the engagement between the projecting shaft and the bearing part is made more reliable. Is preferably attached to the plate 14 to be moved.

[0025]

As for the movable joint 11 according to the present invention, one kind of joint part 10 may be prepared. The number of parts can be reduced. Moreover, assembling only requires turning over the joint parts 10 and pushing them in, and like the conventional hinge, the hole 2
The complicated work of aligning the hole 5 with the hole 26 coaxially, inserting the insertion part 23 into the receiving part 22, and then pushing in the shaft rod 24 can be eliminated. Furthermore, by eliminating the shaft bar 24 like a conventional hinge, problems such as deformation when the shaft bar 24 is made of a synthetic resin can be solved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a movable joint according to the present invention.

FIG. 2 is a perspective view showing a movable state of the movable joint of FIG. 1;

FIG. 3 is a perspective view showing an example of the movable joint according to the present invention, showing a state before another joint part is reversely engaged with another joint part.

FIG. 4 is a cross-sectional view showing an example of a joint component according to the present invention.

FIG. 5 is a cross-sectional view showing an example of a movable joint according to the present invention, showing a state in which another joint component is being reversely engaged with another joint component.

FIG. 6 is a cross-sectional view showing an example of a movable joint according to the present invention, in which another joint part is reversely engaged with the joint part.

FIG. 7 is a perspective view showing a use example of the movable joint according to the invention, in which the movable joint is fixed to a plate with bolts.

FIG. 8 is a perspective view showing a use example of the movable joint according to the present invention, showing a state where the movable joint is fixed to a plate using a groove.

FIG. 9 is a perspective view showing a conventional hinge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Projection shaft 2 Bearing part 3 Base part 4 Bearing bottom part 5 Introduction part 6 Second introduction part 7 Projection shaft tip part 8 Base part end 9 Second introduction receiving part 10 Joint part 11 Movable joint 12 Mounting part 21 Hinge part 22 Receiving part 23 Insertion part 24 Shaft bar 25 Hole (receiving part) 26 Hole (insertion part)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4E360 AB02 AB12 BA06 BB02 BB12 BB17 BB27 BC05 EA12 EC12 EC14 EC16 ED04 ED13 ED15 ED28 EE03 FA07 GA02 GA06 GA12 GA53 GB99 GC08

Claims (4)

[Claims] 1. A joint part having one or more protruding shafts provided on a base arranged in a comb shape and having the same number of bearings on the base coaxially with the protruding shafts. Movable joint reversely engaged with. 2. The movable joint according to claim 1, wherein the movable joint is made of a synthetic resin. 3. The movable joint according to claim 1, wherein an introduction portion is provided at a front end of a wall surface connected to the bearing portion, and an introduction receiving portion connected to the base portion is provided. 4. At least one of the base tip and the bearing bottom is arc-shaped, and the other is arc-shaped or polygonal,
4. The movable joint according to claim 1, wherein the shape of the tip of the protruding shaft is circular or polygonal.