JPH04125031U - Anchor nut fixing structure - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the anchor nut from rotating relative to the plate material even if bolts, etc. are repeatedly attached and detached. [Configuration] Nut fitting fixing hole 3 provided through plate material 1
A groove 4 having a width slightly larger than the diameter of the hole 3 is formed in the outer end surface 1A of one end. The anchor nut 2 is provided with a cylindrical fixing part 6 having an outward flange 5 at its outer end, and a female threaded part 7. The anchor nut 2 is provided with a notch parallel to the outward flange 5 so as to fit into the groove 4. A fitting and locking surface 8 is formed. The anchor nut 2 is fitted into the nut fitting fixing hole 3, the fitting and locking surface 8 of the outward flange 5 is fitted to the opposing wall surface 4A of the groove 4, and the fixing part 6 of the anchor nut 2 is caulked and fixed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention allows anchor nuts to be attached to plate materials such as metal thin plates, aluminum profiles, etc. This relates to an anchor nut fixing structure for fixing.

0002

[Conventional technology]

Traditionally, machine screws, bolts, etc. are screwed into thin metal plates, aluminum shapes, etc. If the Anchor nuts are used where parts are repeatedly attached and detached. Conventionally, the anchor nut 11 has an outward flange at one end, as illustrated in FIGS. 9 and 10. It has a generally cylindrical shape and includes a caulking fixing part 13 having a section 12 and a female screw section 14, The inner diameter of the caulking fixing part 13 is made larger than the root diameter of the female thread part 14, and the wall is thin. There is. As shown in FIG. 8, the thin steel plate 15 fixed to the anchor nut 11 includes: A circular nut insertion fixing hole 16 is provided in a penetrating manner, and an anchor nut 11 is inserted into the fixing hole 16. from the side end of the female threaded portion 14, and place the outward facing flange 12 against one plate surface 15A of the thin steel plate 15. In the state where they are in contact with each other, the caulking fixing part 13 expands in diameter along the other plate surface 15B of the thin steel plate 15. The thin steel plate 15 is clamped and fixed from both sides by the expanded diameter part 17 and the outward facing flange part 12. There is.

0003

[Problem that the idea aims to solve]

By the way, in the above-mentioned conventional technology, if bolts etc. are repeatedly attached and detached, the thin steel plate 15 The clamping and fixing state of the anchor nut 11 becomes loose and the anchor rotates relative to the anchor nut 11. When a bolt, etc. is screwed into the female threaded portion 14 of the nut 11, the anchor nut 11 will connect with the bolt, etc. There is a problem in that they rotate together, making it impossible to tighten and secure bolts, etc.

0004 This invention was devised by focusing on the above-mentioned drawbacks, and its purpose is to The rollers prevent the anchor nut from rotating relative to the plate material, etc., even if bolts, etc. are repeatedly attached and detached. , Anchor nut fixing that allows bolts, etc. to be securely screwed into the anchor nut. It is there to provide structure.

[0005]

[Means to solve the problem]

In order to achieve the above object, the present invention takes the following technical measures. That is, the present invention provides an outward facing flange at the outer end of the nut insertion fixing hole provided in the plate material etc. in a penetrating manner. An anchor nut with a cylindrical fixing part and a female thread part is inserted into the anchor nut. In the structure in which the fixing hole is fixed by tightening, a diameter of the fixing hole is set on the outer end surface of one end of the fixing hole. form a groove with a width greater than or equal to the width of It is characterized in that a fitting and locking surface is formed by a notch in the row.

[0006]

[Effect]

According to the present invention, the opposite wall of the groove 4 formed on the outer end surface of one end of the nut insertion fixing hole 3 The fitting and locking surface 8 formed on the outward flange 5 of the anchor nut 2 is fitted onto the surface 4A. The fitting and locking surface 8 of the anchor nut 2 is restrained by the groove 4 and the opposing wall surface 4A of the plate material 1, etc. Therefore, the anchor nut 2 does not rotate relative to the plate material 1, etc., and the bolt, etc. can be securely fixed or removed by screwing.

[0007]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. In Figures 1 to 3, 1 is a thin steel plate, 2 is an anchor nut, and thin steel plate 1 has a nut. A fixing hole 3 is provided in a penetrating manner, and a hole having the same diameter as the fixing hole 3 is provided on the outer end surface 1A of one end. Alternatively, a slightly wider groove 4 is formed. Also, anchor nut 2 has a substantially cylindrical shape. As shown in Figs. 2 and 3, it is equipped with a cylindrical fixing part 6 having an outward facing flange 5 at its outer end. Moreover, except for the fixing part 6, it is equipped with a female threaded part 7 into which a bolt etc. is screwed. The inner diameter of part 6 is larger than the root diameter of female thread part 7, and has a thin wall suitable for caulking. It is. In addition, the outward facing flange 5 has parallel notches on both sides, as shown in Fig. 2. A fitting and locking surface 8 that can be fitted between the opposing wall surfaces 4A of the groove 4 of the thin steel plate 1 is formed. There is.

[0008] Therefore, when inserting and fixing anchor nut 2 on thin steel plate 1, anchor nut 2 Insert the outer end of the female threaded part 7 side from the groove 4 side of the thin steel plate 1, and insert it into the opposite wall surface 4A of the groove 4. Fit the fitting and locking surface 8 of the anchor nut 2 to the outer edge of the thin steel plate 1, and While in contact with the surface 1A, the caulking fixing part 6 expands along the other plate surface 1B of the thin steel plate 1. As shown in FIG. The thin steel plate 1 is clamped and fixed from both sides 1A and 1B.

[0009] According to the above embodiment, the anchor nut 2 is fitted onto the opposite wall surface 4A of the groove 4 of the thin steel plate 1. Since the locking surface 8 is fitted and locked, the relative rotation of the anchor nut 2 and the thin steel plate 1 is prevented. Therefore, the bolt, etc. that is screwed into the female thread part 7 of the anchor nut 2, It does not rotate with the anchor nut 2 and is securely tightened and fixed. Figures 4 and 5 show the above-mentioned annular An example of fixing the car nut 2 is shown, and the outside of the anchor nut insertion fixing hole 3 is shown. A groove 4 is formed in the side end surface 10A, and the anchor nut 2 is fitted into the opposing wall surface 4A of the groove 4. The stop surface 8 is fitted and locked to prevent relative rotation of the anchor nut 2.

0010 6 and 7 show other examples of groove shapes, and each of the above-mentioned grooves has a long hole shape. Unlike the embodiment, the anchor nut 2 is fitted in the same manner as the embodiment shown in FIGS. 1 to 3. Fixed. The present invention is not limited to the above-mentioned embodiments, for example, the anchor nut 2 The shape of can be changed as appropriate.

[0011]

[Effect of the idea]

As mentioned above, the present invention has a fixing hole for inserting a nut through the plate material, etc., and the outer end The anchor nut is equipped with a cylindrical fixing part having an outward facing flange and a female threaded part. In the structure in which the fixing hole is fitted and fixed by tightening, the fixing hole is attached to the outer end surface of one end of the fixing hole. forming a groove having a width greater than the diameter of the hole, and fitting the outward flange of the nut into the groove; It is characterized by having a fitting and locking surface formed by parallel notches as shown in FIG. Relative rotation between the anchor nut and plate material, etc. can be completely prevented, and bolts, etc. can be It can be screwed securely even if it is repeatedly attached and detached from the kit.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention, (A) is a plan view;
(B) is a longitudinal cross-sectional view.

FIG. 2 is a plan view of the anchor nut.

FIG. 3 is a partially cutaway sectional view of FIG. 2;

FIG. 4 is a plan view of the anchor nut fixing portion of the aluminum profile.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is a plan view showing another example of the groove shape of the plate material.

7 is a sectional view taken along line BB in FIG. 6. FIG.

FIG. 8 is a vertical cross-sectional view of a conventional example.

FIG. 9 is a plan view of a conventional anchor nut.

FIG. 10 is a sectional view taken along line CC in FIG. 9;

[Explanation of symbols]

1 Thin steel plate 1A One end outer end surface 2 anchor nut 3 Anchor nut insertion fixing hole 4 grooves 4A Opposite groove surface 5 Outward collar 6 Fixed part 7 Female thread part 8 Fitting and locking surface

Claims (1)

[Scope of utility model registration request] Claim 1: A cylindrical fixing part having an outward flange at the outer end is provided in a nut insertion fixing hole provided in a penetrating shape in a plate material, etc.,
In a structure in which an anchor nut having a female thread is inserted and fixed by tightening, a groove having a width equal to or larger than the diameter of the fixing hole is formed on the outer end surface of one end of the fixing hole, and the outer flange of the nut is attached to the outer end surface of the fixing hole. An anchor nut fixing structure characterized in that a fitting and locking surface is formed by parallel notches so as to fit into a groove.