JPH0663952U - Fastener structure - Google Patents

Abstract

(57) [Summary] [Purpose] The object of the present invention is to reduce the number of constituent parts, simplify the assembling property or the automatic assembling property without impairing the quality, and obtain an assembling cost and an inexpensive part. [Structure] A core metal is formed in a simple integral shape on a base material A1 having elasticity, the base material A1 is deformed by pushing the core metal, and the base metal is inserted and fixed in the fastening holes of the fixed component 7 and the fixed component 6. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fastening part structure for fastening parts that require vibration isolation and noise reduction.

[0002]

[Prior art]

 Among the conventional methods, a fastening structure for fastening components that requires vibration isolation and noise prevention or reduction is shown in FIG. 4, in which a deformable base material B8 is integrally insert-molded into a female screw 10. A fixing screw 11 is screwed in to deform the deformable base material B8 and fasten it to the fixing component 6, and the deformable base material B8 is used to prevent vibration absorption and noise, or as shown in FIG. In this method, the deformable base material C9 and the fixed member 7 are fixed to the fixing member C13 by co-tightening with the screw C15 to absorb vibration and absorb noise.

[0003]

[Problems to be solved by the device]

 However, according to the conventional technology method, the fastening component structure for vibration insulation and noise prevention requires the precision of component working between the elastic base material and the dedicated insert metal female that deforms the base material at the time of fastening. Therefore, press-fitting and assembling are not possible, and a deformable elastic material must be integrally molded with the metallic female screw. In addition, since screws are used for fastening, a screw fastening process is required at the time of fastening, and a lot of assembly time is required, which increases not only component costs but also manufacturing costs.

Further, according to the method of FIG. 5, not only the above problem but also the female screw must be provided on the fixing member.

Therefore, the present invention solves such a drawback, and an object thereof is to reduce the number of parts and improve the assemblability, and at the same time, at a low cost and with a good assembling property without impairing the quality function. It is in the area of providing fasteners for vibration insulation and noise prevention.

[0006]

[Means for Solving the Problems]

 In order to solve such a problem, the present invention provides a plurality of protrusions on the outer periphery with a material having elasticity and a collar formed to be larger than the outer shape of the protrusion, and has an outer peripheral shape near the protrusion on the inner side. Press the metal material or the rigid core material that protrudes from the outer shape of the base material that is formed integrally with and fixed to the bottom of the cavity and the base material that has a cavity with a similar wall thickness. The outer shape of the base material is deformed to a smaller size than the fixing holes or fixing windows of the fixed parts and fixed parts, and the original shape is restored by releasing the pressure, and the grooves between the protrusions of the base material are fixed parts. It is also characterized by being fitted around a fastening hole or fastening window of a fixed part.

[0007]

【Example】

 An embodiment of the fastening structure for vibration isolation and noise prevention according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a fastening component structure according to an embodiment of the present invention.

In the figure, the fixed component groove 4 and the fixed component groove 3 are formed of a base material A1 having deformable elasticity. A core metal 2 for deforming the shape of the base material A1 is integrally formed on the base material A1. Further, a cavity 5 is provided in order to deform the base material A1 into the fixed component groove 4 and the fixed component groove 3 in order.

FIG. 2 is an explanatory view showing a deformation state of a fastening part at the time of insert fastening of the present invention. By pressing the head of the core metal 2 as shown in the figure, the fixed component groove 4 and the fixed component groove 3 are deformed in this order from the tip of the base material A1 to attach the fixed component 6 and the fixed component 7. It is smaller than the diameter of the hole and can be inserted. Further, by releasing the pressing force of the head of the cored bar 2, the base material A1 is elastically restored to the original shape and is fastened as shown in FIG. The fastening force is adjusted by setting the wall thicknesses of the fixed component groove 4, the fixed component groove 3 and the cavity 5.

As a result of the above, it is possible to obtain a fastening component that is inexpensive and has a good assembling property while eliminating the fixing structure using screws and improving the assembling property.

[0012]

[Effect of device]

 As is apparent from the above-described embodiments, the use of the fastening component of the present invention eliminates the need for a male screw for fixing or a female screw integrally formed with the insulator, and thus the number of components can be reduced. . Also, since the work of tightening the screws during assembly can be eliminated, not only is a special tool for screw tightening unnecessary, but the assembly time can be shortened. In addition, since the screw tightening process has been abolished, there is no need for troublesome screw feeders and screw tightening units when automating the assembly work, and there is an effect that an inexpensive automatic machine for assembly can be achieved. .

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a fastening structure of the present invention.

FIG. 2 is a cross-sectional view showing a deformed and inserted state of the fastening component of the present invention.

FIG. 3 is a sectional view showing a fastening state of the fastening component of the present invention.

FIG. 4 is a sectional view showing a fastening structure using a conventional insulator.

FIG. 5 is a cross-sectional view showing a fastening structure using a conventional insulator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base material A 2 Core metal 3 Fixed part groove 4 Fixed part groove 5 Cavity part 6 Fixed part 7 Fixed part 8 Base material B 9 Base material C 10 Female screw 11 Screw B 13 Fixed part C 15 Screw C

Claims (1)

[Scope of utility model registration request] 1. A cavity having a plurality of protrusions and a collar formed to be larger than the outer shape of the protrusions on the outer periphery of a material having elasticity, and having a wall thickness near the protrusions and having an approximate wall thickness along the outer periphery. The base material provided with the parts and the metal or rigid core material held in the hollow part are deformed by pressing force so that the outer shape of the base material is smaller than the fixing holes or the fixing windows of the fixed parts and the fixed parts. A fastening part structure, which is restored to its original shape by inserting and releasing the pressing force, and the groove between the protrusions of the base material is fitted around the fastening hole or fastening window of the fixed component and the fixed component.