JPH11270533A - Thrusting and fastening nut - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fasten or remove a nut with a tool by folding the tips of elastic support levers from the upper edge of a hexagon body slightly smaller than the diameter of a bolt toward the center, and forming a main body into the same hexagon body as the nut. SOLUTION: The width/length ratio of the direct support levers 2 extended from the upper edge of a hexagon wall body 1 is set to 2 or above to obtain advantageous elasticity. Adjacent sections of the support levers 2 folded toward the center are formed into the edge section of a form to give rigidity to a wall body. A hole 4 is provided at the center of the bottom face of a square having half-circles at comers, side wall faces are formed on the periphery, and the support levers 2 are folded inward by about 45 from the opposite side wall faces. This nut can be straightly inserted to a bolt to fasten it and can prevent it from being loosened by vibration or a shock.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-in nut structure in which the end of a support lever is bent at about 45.degree. From the upper edge of a hexagonal wall toward the center to reduce the resistance when inserting the support lever into a bolt.

[0002]

2. Description of the Related Art A conventional push nut shown in FIG. 3 has a structure in which a claw is provided at an edge in a center hole on a circular plane, and is inserted into a shaft bar and stopped by a support force of the claw. Due to this flat shape, it cannot be tightened or removed like a nut.

[0003]

A conventional push nut is inserted into a shaft rod, has a small elastic displacement of a claw, and cannot be inserted into a screw thread of a bolt. It is a shape that cannot be rotated and tightened or removed.

[0004]

Since the main body is formed in the same hexagonal shape as the nut, the main body can be tightened and removed by an instrument. In addition, the end of the elastic support lever is bent slightly smaller than the diameter of the bolt by about 45 ° toward the center from the upper edge of the hexagonal body. The tip is supported by the thread valley,
Torque works by rotating and tightening.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The tips of the three support levers are made to conform to the linear shape of the screw thread of the bolt, and the support force generated by tightening the support levers acts evenly.

The ratio L of the width (W) to the length (L) of the support lever
By setting / W = 2 or more, the elasticity is increased and a thick plate can be easily inserted.

[0007] The push nut is placed in a hexagonal cylinder.
There is also a tool that can insert up to 40 pieces, feed them one by one, insert and tighten them continuously into bolts, and also have the function of removing in a single step.

[0008] [Embodiment] From the upper edge of the hexagonal wall (1), in order to make the elasticity advantageous, the support lever (2) is directly L / W =
Two or more, and the center of the lever is adjacent to the bending lever, which is formed at the edge of the mold to make the wall rigid.

As shown in FIG. 2, a hole (4) is provided at the center of the square bottom surface which is formed into a semicircle, and the periphery is a side wall surface. Square nut with a bent structure.

[Effect of the Invention] Bending about 45 °, L /
With the support lever having elasticity of W = 2 or more, it can be inserted straight into the bolt and tightened.

The coefficient of friction is less than 1/3, whereby the coefficient of friction per unit area is 3 times or more. Works. These various elements have a great effect of preventing loosening against vibration and impact.

A number of nuts are inserted into a hexagonal (square) cylinder, and the efficiency is 4 to 5 times as high as one by one by sending out and successively inserting and crimping.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire nut.

FIG. 2 is a perspective view showing the entire square nut.

FIG. 3 is a perspective view showing the entire push nut.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hexagon 2 Support lever 3 Edge 4 Hole 5 Support lever

Claims (1)

[Claims] 1. An elastic supporting lever (2) and an edge (3) are alternately arranged on an upper edge of a hexagonal wall (1), and a tip of the supporting lever (2) is moved toward the center by about 45 degrees. °, press-tightened nuts bent slightly smaller than the bolt diameter.