JPH0187315U

JPH0187315U -

Info

Publication number: JPH0187315U
Application number: JP18419087U
Authority: JP
Priority date: 1987-12-02
Filing date: 1987-12-02
Publication date: 1989-06-09
Also published as: JPH0310411Y2

Description

[Brief explanation of the drawing]

第１図Ａは本考案の一実施例である締付ナツト
の正面図であり、同図Ｂはそのナツトの一部切欠
側面図である。第２図は第１図の締付ナツトの要
部を拡大して示す側面断面図であり、第３図及び
第４図は同じ締付ナツトを夫々締付前及び締付後
の状態で示す各断面図である。１０：締付ナツト、１２：内側部材、１４：外
側部材、１６：雌ねじ、１８：嵌合凸部、２０：
嵌合凹部、２２：手掛部、２４：弾性部、２６：
内周面、２８：回り止部、３０，３２：被締付部
材、３３：ボルト。 FIG. 1A is a front view of a tightening nut which is an embodiment of the present invention, and FIG. 1B is a partially cutaway side view of the nut. FIG. 2 is an enlarged side sectional view showing the main parts of the tightening nut shown in FIG. 1, and FIGS. 3 and 4 show the same tightening nut before and after tightening, respectively. FIG. 3 is a cross-sectional view. 10: Tightening nut, 12: Inner member, 14: Outer member, 16: Female thread, 18: Fitting convex portion, 20:
Fitting recess, 22: Hand grip portion, 24: Elastic portion, 26:
Inner peripheral surface, 28: rotation stopper, 30, 32: member to be tightened, 33: bolt.

Claims

[Claims for Utility Model Registration] (1) A hard inner member having a female thread formed on its circular inner circumferential surface, and a hard inner member disposed so as to cover the outer circumferential surface of the inner member and not rotate relative to the inner member. and an outer member made of a soft organic material with a handle portion for applying an operating force formed on the outer periphery, wherein the tip portion of the outer member on the side of the member to be tightened is the entire nut. The elastic portion is made to partially or partially protrude in the axial direction, and when the female screw tightens the tightened member together with the bolt, the elastic portion is elastically deformed and prevents the screw from loosening based on its elasticity. A tightening nut characterized by being adapted to prevent. (2) The tightening nut according to claim 1, wherein the elastic portion has a cross-sectional shape in which the wall thickness becomes gradually thinner as it advances toward the distal end side in the axial direction. (3) The outer member has a circular inner circumferential surface that extends rearward continuously from the inner female thread of the inner member, and the diameter of the inner circumferential surface is equal to or approximately equal to the effective thread diameter of the bolt. Equipped with a rotation stopper,
The tightening device according to claim 1 or 2, wherein the inner circumferential surface bites into the male thread of the bolt to prevent the screw from rotating when the member to be fastened is tightened. With nut. (4) The tightening nut according to any one of claims 1 to 3, wherein the inner member is made of an organic material such as hard plastic.