JP2000310212A - Clip nut - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clip nut which has a simple structure, is manufactured simply, is capable of reducing cost and handy to use by forming a nut holding hole coupled with the outer periphery of the nut to prevent the rotation of the nut on a folded piece at the tip of one pinch piece of a clip section. SOLUTION: One pinch piece 2b of a clip section 2 is folded outwardly at its tip section to form a folded piece 2d. A nut holding hole coupled with the outer periphery of a nut 30 to prevent the rotation of the nut 30 is formed on the folded piece 2d on the same axis as bolt insertion holes 21a, 21b. A spring washer 31 is fitted to one end of the generally used nut 30 to form a nut section 3. The spring washer 31 is used to prevent the nut 30 from being loosened, when fastening a bolt. The spring washer 31 fitted to the nut 30 functions as a lock piece, when fixing the nut section 3 to the clip section 2. The manufacture of this clip nut is very simple, and its manufacturing cost can be made very low.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip nut used for fastening two or more members.

[0002]

2. Description of the Related Art In general, a bolt and a nut are used in combination to fasten two or more members. However, when a screw portion of the bolt is screwed, the nut is rotated with the rotation of the bolt. To rotate, it is necessary to fix the nut.
However, it is difficult to fix the nut when it is difficult to reach or reach the mounting side of the nut of these members. In such a case, in order to prevent the nut from turning with the rotation of the bolt, the bolt insertion hole is coaxial with a pair of opposing holding pieces of a U-shaped clip that sandwiches the member to be fastened. There have been proposed various clip nuts formed on a wire and having a nut attached to one outer surface by welding.

As a method of attaching a nut to a clip, in addition to the above-described welding, a method of forming a locking piece on one outer surface of the clip to fix the nut (Japanese Patent Publication No. 49-41).
No. 235, Japanese Patent Application Laid-Open No. 54-74066, and Japanese Utility Model Publication No. 6-45689), and a method of providing a space for accommodating a nut and fitting the nut therein (actually 1-3)
No. 5057, and Japanese Utility Model Laid-Open No. 7-41043) have been proposed.

[0004]

In the method of welding a nut to a clip as described above, welding is troublesome. Further, when a locking piece is formed on one outer surface of the clip or a space for accommodating the nut is provided in the clip, the number of members constituting the clip nut increases, which complicates the manufacturing process and reduces the manufacturing cost. Will also increase.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is an object of the present invention to provide an easy-to-use clip nut which has a simple structure, can be manufactured easily, and can reduce the manufacturing cost. is there.

[0006]

A clip nut according to the present invention is used for fastening two or more members, is bent into a shape capable of holding the members, and is provided with a pair of opposing holding pieces by bolts. The insertion hole comprises a clip portion formed on a coaxial line, and a nut portion having a spring washer attached to one end of the nut, and the tip of one holding piece of the clip portion is folded outward, and the folded piece has A nut holding hole that engages with the outer peripheral surface of the nut to prevent rotation of the nut is formed coaxially with the bolt insertion hole, and the nut portion is engaged by engaging the holding hole with the spring washer. Is fixed to a predetermined position of the clip portion.

According to the present invention, the tip of one of the holding pieces of the clip portion is folded back, and the folded-back piece is formed with the nut holding hole for engaging with the outer peripheral surface of the nut and preventing the rotation of the nut. When the bolt is screwed in, the nut can be prevented from rotating with the rotation of the bolt.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show a clip nut 1 according to the present invention. The clip nut 1 includes a clip portion 2,
And a nut portion 3.

The clip portion 2 is formed by bending a metal plate into a substantially U-shape, and the opposing pieces are a pair of holding pieces 2a, 2a.
b. In addition, the code | symbol 2c in a figure shows a backboard part. The distance between the tip of one of the holding pieces 2a and the holding piece 2b opposed thereto is slightly smaller than the width of the back plate 2c. This is because an elastic force is generated in the clip portion 2 to securely hold the member to be fixed.

Bolt insertion holes 21a and 21b are formed in the pair of holding pieces 2a and 2b at substantially the center of the holding pieces 2a and 2b and on the coaxial line. Of these bolt insertion holes 21a and 21b, the bolt insertion hole 21b on the nut portion 3 side is circular, and the other bolt insertion hole 21a is a long hole whose major axis is orthogonal to the back plate 2c.

One of the holding pieces 2b of the clip portion 2 has its tip end folded outward to form a folded piece 2d. Reference numeral 23 in the figure indicates a notch for facilitating the folding of the holding piece 2b. Reference numeral 23a denotes a tapered portion for facilitating insertion into a member to which the clip nut 1 is attached.

A nut holding hole 2 which engages with the outer peripheral surface of the nut 30 to prevent the rotation of the nut 30 is formed in the folded piece 2d.
2 is formed coaxially with the bolt insertion holes 21a and 21b.

In the illustrated example, the nut holding hole 22 has the same shape as the outer shape of the nut 30. However, the shape is not limited to the same shape as the outer shape of the nut 30 as long as it prevents rotation of the nut 30. Alternatively, the nut 30 may have a curved surface such as an ellipse or a triangular shape or a quadrangular shape.

The nut 3 is formed by attaching a spring washer 31 to one end of a commonly used nut 30. The nut 30 used in the nut portion 3 is a hexagonal nut in the present embodiment, but may be a square nut or other special nut.

The spring washer 31 is used to prevent the nut portion 3 from being loosened when the bolt is fastened, and at the same time, when the nut portion 3 is fixed to the clip portion 2 by being mounted on the nut 30. Function as a locking piece. The spring washer 31 is attached to one end of the nut part 3 by, for example, caulking means. The spring washer 31
Is larger than the outer shape of the nut 30 in order to function as a locking piece. In the present embodiment, a disc spring washer is used as the spring washer 31. However, the present invention is not limited to this, and a wave spring washer may be suitably used, and other spring washers may be used. It is.

The attachment of the nut 3 to the clip 2
Do the following: In a process before the tip of the holding piece 2b is folded to form the folded piece 2d, the nut portion 3 is fitted into the nut holding hole 22 so that the spring washer 31 is located above. Next, the front end of the holding piece 2b is folded back until the lower surface of the spring washer 31 contacts the holding piece 2b with the notch 23 as a boundary. As a result, the nut portion 3 does not fall off the clip portion 2 due to the engagement between the spring washer 31 and the nut holding hole 22, and the nut portion 3 is positioned at a predetermined position of the clip portion 2 in a state where the rotation is prevented by the nut holding hole 22. Fixed.

Next, an example of a use state of the clip nut 1 will be described with reference to FIG.

First, the members B and C to which the bolts A are to be fastened and fastened are aligned with the bolt insertion holes, and these members B and C are sandwiched by the clip nut 1. Next, the bolt insertion holes of the members B and C and the bolt insertion holes 2 of the clip portion 2 are formed.
The positions of the clip nut 1 and the members A and B are adjusted so that 1a and 21b overlap. Then, the bolt insertion hole 21
The bolt A is inserted from the side a and screwed to the nut 30. When the bolt A and the nut 30 are tightened, the repulsive force of the spring washer 31 functions, and the effect of preventing the nut portion 3 from loosening is exhibited.

Although the clip portion 2 of the clip nut 1 in the above-described embodiment is formed of a metal plate, the material is not limited to this, and may be, for example, a synthetic resin.

[0021]

As described above, since the clip nut according to the present invention comprises only the clip portion and the nut portion to which the spring washer is mounted, the production is extremely simple and the production cost is reduced. Very low. In addition, fixing the nut part only requires engaging the nut part with the nut holding hole of the folded back piece.Therefore, the locking piece and nut receiving space are formed on the outer surface of the clip with the nut attached by conventional welding and the clip. Therefore, there is no need to use a separate member as compared with the case where the nut is fixed. In addition, since the spring washer is used to prevent the bolt and the nut from loosening, the fastening operation can be performed more easily and reliably.

[Brief description of the drawings]

FIG. 1 is a front view of a clip nut of the present invention.

FIG. 2 is a plan view of the clip nut of the present invention.

FIG. 3 AA of the clip nut of the present invention in FIG. 2;
It is a line sectional view.

FIG. 4 is a diagram showing a use state of the clip nut of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clip nut 2 Clip part 2a, 2b Holding piece 21a, 21b Bolt insertion hole 22 Nut holding hole 3 Nut part 30 Nut 31 Spring washer

Claims (1)

[Claims] 1. A clip nut used for fastening two or more members, wherein the clip nut is bent into a shape capable of holding the members, and a pair of opposing holding pieces has a bolt insertion hole formed on a coaxial line. And a nut with a spring washer attached to one end of the nut. The tip of one of the holding pieces of the clip is folded outward, and the folded piece engages with the outer peripheral surface of the nut. A nut holding hole for preventing rotation of the nut is formed coaxially with the bolt insertion hole, and the nut portion is engaged with the spring washer so that the nut portion is positioned at a predetermined position of the clip portion. A clip nut fixed to the clip nut.