JPH0530529U - Clip - Google Patents

Abstract

(57) [Summary] [Structure] A burring portion 2b is provided on one surface 2 of a clip nut 1 having a substantially U-shaped cross section by burring processing, and a screw portion 2a is formed on the inner peripheral surface thereof. A notch 5 is provided in the connecting portion 4 between the one surface 2 and the other surface 3 so that the opening 10 of the clip nut 1 having a substantially U shape is wider than the length of the connecting portion 4.
A hole is provided in the mounting portion of the clip nut 1, and the clip nut 1 is inserted into the mounting portion through the opening 10 so that the burring portion 2b is inserted therein, and the both sides 2 and 3 are mounted with fingers or the like. . [Effect] Since the burring portion 2b of the clip nut 1 is inserted into the hole of the mounting portion, the clip nut 1 will not be displaced or fall out. Further, the work of attaching the clip nut 1 and the production thereof are facilitated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clip which is attached to one member in advance and used when, for example, a plurality of members are coupled by bolting.

[0002]

[Prior Art]

 Conventionally, when connecting multiple members using bolts and nuts, in order to prevent the nut from turning or when it is not possible to hold the nut, it is necessary to attach it to one member in advance and screw the bolt in. There was a clip with a nut (clip nut).

A conventional clip nut 11 is shown in FIG. A hole 12a (shown in FIG. 8) is provided in one surface 12 formed by bending a single plate material into a substantially U shape, and a nut 15 is welded and fixed so as to cover the hole 12a, and the other surface is fixed. A hole 13a is formed in the nut 13 at a position corresponding to the female screw portion 15a of the nut 15.

In FIG. 7, 12b is a pressing portion provided on one surface 12, and 12c and 13b are open ends of a clip nut 11 which is formed by bending a substantially U-shaped plate material, and the open ends 12c and 13b. The clip nut 11 is inserted into the mounting member through the opening formed therebetween. In FIG. 7, reference numeral 14 is a connecting portion between the one surface 12 and the other surface 13, and 15b is a welding portion between the nut 15 and the one surface 12.

FIG. 8 shows an example of use in which the L angle 6 and the panel 7 are connected by a bolt 8 by a conventional clip nut 11.

First, the female screw portion 15a of the clip nut 11 is positioned and attached to the hole 6b formed in the attachment portion 6a of the clip nut 11 of the L angle 6. Next, with the hole 7a of the panel 7 positioned with respect to the hole 13a of the clip nut 11, the bolt 8 is screwed into the female screw portion 15a to connect the L angle 6 and the panel 7 with the clip nut 11 and the bolt 8. .

Here, as shown in FIG. 8, a hole 12a is provided in one surface 12, and the nut 15 is pre-positioned so that the center of the hole 12a and the female screw portion 15a are aligned. It is fixed and fixed to one surface 12 by welding.

FIG. 9 shows a state in which the above-mentioned conventional clip nut 11 is attached to the attachment portion 6 a of the clip nut 11 of the L angle 6.

The inner length G of the connecting portion 14 of the clip nut 11 is substantially equal to the plate thickness t of the mounting portion 6a. Further, the distance H (width of the opening) between the open ends 12c and 13b is almost equal to the plate thickness t of the mounting portion 6a for mounting the clip nut 11 on the mounting portion 6a.

The distance J between the pressing portion 12b of the one surface 12 of the clip nut 11 and the other surface 13 is smaller than the plate thickness t of the mounting portion 6a. As a result, when the clip nut 11 is attached to the attaching portion 6a, the connecting portion 14 is elastically deformed, the pressing portion 12b is biased in the direction of the arrow b, and the position of the clip nut 11 is held.

As shown in FIG. 9, the hole 6b of the mounting portion 6a of the L-angle 6 and the female screw portion 15a of the clip nut 11 are accurately aligned with each other. After visually pushing in the mounting portion 6a in the direction, it is visually performed.

[0012]

[Problems to be solved by the device]

 The conventional clip nut 11 described above has the following drawbacks.

As shown in FIG. 9A, since the holding force at the position of the clip nut 11 is only the elastic force of the connecting portion 14, oil or the like is attached to the attaching portion 6a, or vibration from the outside is generated. If there is a gap or other parts come into contact with each other, the clip nut 11 is likely to be displaced or come off.

As shown in FIG. 9B, the accurate positioning of the clip nut 11 with respect to the mounting portion 6a can only be performed visually, and the work efficiency is poor.

C, as shown in FIG. 10, if the bolt 8 is inserted at a position displaced from the female screw portion 15a, the pressing portion 12b is spread in the direction of arrow c and the clip nut 11 is attached. The position holding force on the portion 6a is reduced, and once the bolt 8 is removed from this state, the position of the clip nut 11 is easily displaced or dropped.

As shown in FIG. 7D, the clip nut 11 is manufactured by welding a nut 15 to a plate material that is bent into a substantially U-shape. The productivity is poor because it takes time to position the female screw portion 15a of the nut 15 with respect to the hole 12a of the one surface 12 and welding.

[0017]

[Means for Solving the Problems]

 It is an object of the present invention to solve the above-mentioned drawbacks of the conventional clip nut, and to provide a clip that can be easily positioned, can reliably hold the position, and has high productivity.

In order to achieve the above object, the invention of claim 1 is provided with a pair of holding pieces and a connecting portion for connecting the holding pieces, and the cross-sectional shape is substantially U-shaped. In a clip that can be inserted into a mounting member having a hole into which a screw is inserted from the opening of the U-shaped body, one of the holding pieces has a cylindrical shape so as to protrude inside the U-shaped body by burring. The boss portion is provided, and the other of the holding pieces is provided with a screw insertion hole at a position corresponding to the cylindrical boss portion.

The invention of claim 2 is the clip according to claim 1, wherein a notch portion is provided in the connecting portion, and a screw portion is provided on an inner peripheral surface of the cylindrical boss portion. The opening is wider than the connecting length of the connecting portion.

In the present invention, the burring process refers to forming a prepared hole in a flat plate and then forming a cylindrical boss portion by protruding the edge of the hole with a conical or cylindrical punch or the like. Refers to processing.

[0021]

[Action]

 In the clip according to the first aspect, a screw or the like can be inserted from the screw insertion hole provided on the other side of the holding piece and screwed into the cylindrical boss portion provided on one side of the holding piece. Since this cylindrical boss is formed by burring, the conventional work of welding a nut is unnecessary, and the clip can be easily made from a single plate material, for example.

According to the clip of the second aspect, since the opening of the U-shaped body is wider, it can be easily inserted into the mounting portion of the clip nut, and the connecting portion is provided with the notch portion. Therefore, after inserting the clip into the mounting portion, the pair of holding pieces can be sandwiched by fingers or the like and pressed against each other, so that the connecting portion can be easily plastically deformed. Therefore, the clip-shaped boss protruding inside the U-shaped body is inserted into the hole in the mounting part, and the clip may fall off or become misaligned until another member is mounted on the mounting part. There is nothing to do. Further, if a threaded portion is formed in advance on the inner peripheral surface of the cylindrical boss, it becomes easy to screw in the screw from the outside.

[0023]

【Example】

 FIG. 1 is a partially cutaway perspective view of a clip nut 1 according to an embodiment of the present invention. The clip nut 1 is provided with one surface 2 and the other surface 3 that form a pair of holding pieces, and a connecting portion 4 that connects these surfaces 2 and 3, and has a substantially U-shaped cross section. ing.

A burring portion 2b is formed in a cylindrical boss shape by a burring process so as to project inward of the U-shaped body at approximately the center of the one surface 2. A threaded portion 2a is formed on the inner peripheral surface of the burring portion 2b.

A hole 3 a into which a screw can be inserted is formed in the other surface 3 at a position corresponding to the burring portion 2 b. Further, the connecting portion 4 is formed with a cutout portion 5 which is cut out at substantially the center thereof.

The clip nut 1 is inserted into the mounting member through the opening 10 between the open end 2c of the one surface 2 and the open end 3b of the other surface 3.

FIG. 2 is a cross-sectional view showing a state in which the clip nut 1 is inserted into the mounting portion 6a of the L angle 6 which is a mounting member.

As shown in FIG. 2, the inner length A of the connecting portion 4 of the clip nut 1 is substantially equal to the plate thickness t of the mounting portion 6 a of the L angle 6. The length B of the opening 10 formed between the open ends 2c and 3b of the clip nut 1 is such that the distance C between the tip of the burring portion 2b and the other surface 3 is the plate thickness t of the mounting portion 6a. It is set to be larger than. As a result, when the clip nut 1 is inserted in the mounting portion 6a in the direction of arrow a, the burring portion 2b does not get in the way.

The clip nut 1 shown by the phantom line in FIG. 2 is inserted into the mounting portion 6a of the L angle 6 in the direction of the arrow a, and then the open end 2c of the clip nut 1 is attached to both sides 2 and 3 in the direction of the arrow b. For example, the connecting portion 4 is plastically deformed by being sandwiched by fingers or the like and pressed against each other. In this case, since the connecting portion 4 is provided with the notch 5, the connecting portion 4 can be easily plastically deformed by the force of a finger or the like, and the work of attaching the clip nut 1 becomes easy.

Further, since the inner diameter D of the hole 6b of the mounting portion 6a is slightly larger than the outer diameter E of the burring portion 2b of the clip nut 1, the burring portion 2b easily fits into the hole 6b of the mounting portion 6a. In this way, the clip nut 1 can be easily attached to the attachment portion 6a of the L angle 6.

The above-mentioned mounting state is shown in FIG. When one surface 2 of the clip nut 1 shown by the phantom line in FIG. 3 is bent in the direction of the arrow b and becomes as shown by the solid line, the burring portion 2b of the one surface 2 is the height F. It goes into the hole 6b of the mounting portion 6a. As a result, the clip nut 1 will not be displaced or fall off even if the L-angle 6 vibrates or any part contacts the clip nut 1 until it is screwed.

FIG. 4 shows a state in which the panel 7 is attached to the L angle 6 to which the clip nut 1 is attached. In the panel 7, the hole 7a for inserting the bolt 8 is aligned with the hole 3a of the clip nut 1. After this, the bolt 8 is inserted through the hole 7a and screwed into the threaded portion 2a of the burring portion 2b of the clip nut 1, whereby the panel 7 is connected to the L angle 6.

As described above, the L angle 6 and the panel 7 are screwed and attached by using the clip nut 1 and the bolt 8. By using such a clip nut 1, for example, it is not necessary to previously form a screw in the hole 6b of the attachment portion 6a of the L angle 6, and it is not possible to form a screw in the attachment portion 6a. It is convenient for cases. And it is no longer necessary to weld the nut to the clip as in the past. Further, the clip nut 1 does not require a special tool and can be easily attached only by the force of a finger or the like.

FIG. 5 shows a state in which the bolt 8 is about to be inserted while being displaced with respect to the screw portion 2a when the panel 7 is screwed to the L angle 6. However, even if the barring portion 2b is pushed up in the direction of arrow c by the bolt 8, the burring portion 2b is engaged with the hole 6b of the mounting portion 6a by the height F of the burring portion 2b. Since this clip nut 1 does not easily dislocate or fall off. Therefore, it is desirable that the height F of the burring portion 2b is as high as possible while maintaining the above-mentioned distance C at a required size.

FIG. 6 shows an example of steps for manufacturing the clip nut 1 shown in FIG.

First, a plate material 9 for making the clip nut 1 as shown in FIG. 6A is prepared.

Next, as shown in FIG. 6 (B), in the plate material 9, a burring portion 2b is formed in a portion that becomes one surface 2 of the clip nut 1, and a hole 3a is formed in a portion that becomes the other surface 3. A circular hole (notch 5) is formed in each of the connecting portions 4 by a press or the like. Further, the screw portion 2a is formed on the inner surface of the burring portion 2b. It should be noted that a pilot hole may be formed in advance in the portion of the plate material 9 that will become the burring portion 2b for processing the burring portion 2b.

Subsequently, as shown in FIG. 6C, the space between the one surface 2 and the connecting portion 4 and the space between the connecting portion 4 and the other surface 3 are bent in the arrow d direction, respectively, The clip nut 1 shown in 1 is completed.

The clip according to the invention is not limited to the embodiment described above, but other variants are possible. For example, if a so-called tapping screw is used for the bolt 8, the screw portion 2a on the inner peripheral surface of the burring portion 2b can be omitted. Further, the application can be applied, for example, when the threaded portion cannot be formed in advance on the mounting member for various reasons, or when it is difficult to mount the nut.

[0040]

[Effect of the device]

 According to the clip of claim 1, since the boss portion that serves as the screw portion of the clip can be easily processed by burring processing, the clip can be easily processed from a single plate material. No need to weld nuts as in the past. Therefore, the manufacturing of the clip is extremely easy and the productivity is improved.

According to the clip of the second aspect, the clip can be easily inserted into the attachment member and can be easily attached only by the force of a finger or the like without using a special tool. Since the part is in the hole of the mounting member, the work of mounting the clip is facilitated and the position of the clip is prevented from slipping and falling off.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a clip nut of an embodiment according to the present invention with a cutout for explanation.

FIG. 2 is a sectional view showing a state in which the clip nut shown in FIG. 1 is inserted into a mounting member.

FIG. 3 is a sectional view showing a state in which the clip nut shown in FIG. 1 is attached to a mounting member.

FIG. 4 is a cross-sectional view showing a state in which two members are connected using the clip nut and the bolt shown in FIG.

FIG. 5 is a cross-sectional view illustrating an example of the effect of the clip nut of the present embodiment, showing a state in which the tip of the bolt is displaced from the thread portion of the clip nut with the clip nut shown in FIG. 1 attached.

FIG. 6 is a perspective view showing one manufacturing process of the clip nut according to the present invention.

FIG. 7 is a perspective view showing a conventional clip nut.

8 is a sectional view showing an example of use of the conventional clip nut shown in FIG.

9 is a sectional view showing a state in which the conventional clip nut shown in FIG. 7 is attached to a mounting member.

FIG. 10 is a sectional view for explaining one of the drawbacks of the conventional clip nut.

[Explanation of symbols]

 1 Clip Nut (Clip) 2 One Side (Clamping Piece) 2a Threaded Part 2b Burring Part (Boss) 3 Other Side (Clamping Piece) 3a Hole (Screw Insertion Hole) 4 Connecting Part 5 Notch 6 L Angle (Mounting) Member) 6b hole (hole in mounting member) 10 opening

Claims (2)

[Scope of utility model registration request] 1. A pair of holding pieces and a connecting portion for connecting the holding pieces are configured to have a substantially U-shaped cross section, and a hole into which a screw is inserted is formed through an opening of the U-shaped body. In a clip that can be inserted into a mounting member that has, a cylindrical boss portion is provided on one of the holding pieces by a burring process so as to project to the inside of the U-shaped body, and the other side of the holding piece has the cylindrical shape. A clip characterized in that a screw insertion hole is provided at a position corresponding to the boss portion. 2. A notch portion is provided in the connecting portion, a screw portion is provided on an inner peripheral surface of the cylindrical boss portion, and
The clip according to claim 1, wherein the opening is wider than a connecting length of the connecting portion.