JPH0721269U - Shape of joining nut - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the joint strength and reduce the cost when joining nuts in automobile parts made of extruded aluminum. [Structure] Aluminat is tapped, but is attached to the bottom of the joint. A flat part having a plate thickness equivalent to that of the member is secured. The flat portion and the mounting member are joined by resistance welding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for automobile parts, and more particularly to an automobile part made of aluminum extruded shape.

[0002]

[Prior art]

 Extruded aluminum profiles are widely used for passenger car seat seat slide rails and rails for sliding parts of door glass. In order to connect this extruded shape member with other parts after processing such as bending and drilling, conventionally, a generally inverted T-shaped nut was attached by spot welding as shown in FIG.

[0003]

[Problems to be solved by the device]

 Conventional spot welding requires a flange shape on the bottom of the nut to secure the joint, which raises the material cost and requires a large space.

[0004] Furthermore, as for the strength in the axial direction of the nut, the joint is distant from the intersection in the pulling direction, so that it is easily deformed as shown in FIG. The strength was inferior to the area.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned conventional problems, the present invention uses a structure having a flat bottom portion for tapping a nut and enabling joining by passing a spot welding electrode through the nut tapping.

In particular, the substantially rectangular shape shown in FIG. 2 can be easily manufactured by using an aluminum extruded shape and having a bottom portion which is an integrally joined surface. Further, not only spot welding but also a flange portion on the bottom of the nut as shown in FIG. 3 allows the nut mounting member to be fitted with the concave and convex portions, thereby improving the reliability of joining.

[0007]

【Example】

 An embodiment of the present invention is shown in FIGS. 1 to 4 and will be described below with reference to the drawings. FIG. 4 shows an example of the application of the present invention, in which a nut 15 of the present invention is used to attach a component 14 to a seat rail 12 of a passenger car seat with a bolt 16.

1 to 3 show an embodiment of a nut shape and a joined state according to the present invention. Here, the X mark indicates that spot welding was performed. These nuts are molded from an aluminum extruded shape, and are then cut into a predetermined shape such as a threaded portion.

[0009]

[Effect of device]

 Since the nut shape according to the present invention can be easily manufactured from an extruded aluminum material, it is cheaper than the conventional one. Further, the space can be made smaller because the flange portion is unnecessary.

[Brief description of drawings]

[Figure 1]

[Fig. 2]

FIG. 3 is a perspective view of a nut shape showing an embodiment of the present invention.

FIG. 4 is a side view showing an entire passenger car seat having a seat rail to which a prior art Alumint is attached.

FIG. 5 is a perspective view of a nut shape showing a conventional example.

FIG. 6 is a perspective view showing a nut deformation state of a conventional example.

[Explanation of symbols]

 1 ... Aluminat 1a ... Flange 2 ... Rail member 10 ... Floor 11 ... Bracket 12 ... Seat 13 ... Actuating means 14 ... .... Brackets 15 ... Nuts 16 ... Bolts

Claims (1)

[Scope of utility model registration request] 1. A joint nut structure in which a tapped bottom surface of a nut is joined to a rail member by electric resistance welding in a structure in which parts are attached by a combination of a bolt and a nut.