JP2002081430A - Push-in type plastic nut - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nut capable of tightening and locking just by pushing in without rotating and twisting, easily efficiently being tightened even at a place hard to tighten, having light weight, being mass-produced at an inexpensive price. SOLUTION: A ring-shaped narrow groove 9 and a nut screw portion 10 are provided on a part of a nut case 7, and the diameter of a screw thread of the nut screw portion 10 is made to be slightly larger than the outer diameter of the screw thread at a degree that the screw threads barely contacts with each other or not. Therefore, a temporary joining nut Fig. 2 wherein a nut case Fig. 5 and a tightening cup Fig. 3 are set is inserted just by pushing-in, and then by pushing in from a tightening coupling upper surface 2, screw threads of a screw meshing portion 11 are meshed with each other, thereby tightening and locking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention does not rotate a nut around a bolt, but tightens and locks just by pushing the nut. A nut case (7) has a nut screw portion (10) and its outer periphery. The nut screw portion (10) is bent toward the bolt side by pushing the ring (4) into the groove, and the screw engagement portion (11) is tightened, and the screw of the bolt (8) is screwed into the bolt (8). The present invention relates to a push-in type plastic nut in which a thread and a thread engage with each other to lock tightly.

[0002]

2. Description of the Related Art A conventional plastic nut is a wrench or the like and cannot be tightened unless the nut is turned. Also, it is difficult to use a plurality of parts and to prevent loosening without taking measures. Was. In order to solve such a drawback, a place where it is difficult to tighten, a narrow place, and a place where corrosive is used is expensive due to the use of a special material, and the weight cannot be reduced. The present invention can be manufactured at a lower cost than injection molding, and can be easily closed by anyone by simply pushing it.

[0003]

This has the following drawbacks. Conventional nuts can not be tightened on bolts unless the nut is rotated in a certain direction with a wrench or the like. When tightening at high altitudes, workers must be in an unreasonable position,
At the same time, it is impossible to work for a long time. An object of the present invention is to be able to easily and quickly tighten a nut without rotating it, and to provide an inexpensive product that can be produced by injection molding.

[0004]

SUMMARY OF THE INVENTION The present invention provides a fastening member (1).
3) To tighten the nut, just push in the nut without turning it. In order to tighten the nut, make the inner diameter of the nut screw part (10) larger than the thread diameter of the bolt (8). Although it enters the surface of the material (13), in order to tighten it and lock it, push it into the holding groove (9) from the ring tip (5) part of the fitting ring (4) and enter it. The bottom surface of the nut case (7) is pressed against the tightening member (13) by resistance to the fitting ring (4) which is thicker than the holding groove (9), and at the same time, the nut screw portion (10) is bent toward the bolt. Engage with the thread of the bolt, stop protrusion (3)
When the nut enters the stop recess (6), the nut is tightened and locked. A push-in type plastic nut having the above configuration.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS When using the present invention,
The bolt (8) is inserted into the hole of the tightening member (13), and the nut is tightened by pressing the nut from the top of the tightening coupling where the nut case (7) and the ring tip (5) are connected from the head of the inserted bolt. At the same time, the material (13) is pressed down, and at the same time, the insert ring (4) is pushed into the depth of the holding groove (9), and enters the place where the stop convex part (3) and the stop concave part (6) meet, and automatically. In addition, the nut and the locking cup can be tightened and locked to prevent loosening, and the nut case and the tightening cup do not have to be partially integrated to be integrated. It is convenient for use in assembling electrical products to furniture products, and can be used in a wide range of places where corrosion is likely to occur.

[0006]

As described above, since the present invention does not need to be rotated and tightened, it can be automatically tightened and locked even in a narrow place just by pushing the nut case and the tightening cup into the bolt (8). It is. The material can be made of metal with some properties, but it is made of plastic, so it is easy to mold parts, it is light and hard to corrode, so it can be used for a wide range of applications and it is inexpensive and has excellent workability Goods can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the structure of a push-in type plastic nut as a whole according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a structure of a push-in type plastic nut as a whole according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view showing the structure of the push-in type plastic nut tightening cup of the present invention.

FIG. 4 is a top view showing a nut case of the push-in type plastic nut of the present invention.

FIG. 5 is a cross-sectional view showing a structure of a nut case of the push-in type plastic nut of the present invention.

[Explanation of symbols]

 (1) Bolt hole (2) Tightening coupling upper surface (3) Stove projection (4) Insertion ring (5) Ring tip (6) Stop recess (7) Nut case (8) Bolt (9) Narrow groove (10) ) Nut screw part (11) Screw engaging part (12) Division groove (13) Tightening material (14) Temporary joint part

Claims (2)

[Claims] When a nut is tightened into a bolt, the nut is tightened and locked by simply pushing it in instead of being screwed. The nut has a nut screw portion (10) inside a nut case (7), and the nut screw portion has a dividing groove (10). A push-in type plastic nut provided with 12). 2. The push-in type plastic nut according to claim 1, comprising a holding groove (9), wherein said nut is screwed into said holding groove by pushing said fitting ring (4) from a ring tip (5). (10) is a push-in type plastic nut in which a bent screw engaging portion (11) engages with the bolt (8) and engages and locks. .