JPH0333071U

JPH0333071U -

Info

Publication number: JPH0333071U
Application number: JP9431089U
Authority: JP
Priority date: 1989-08-09
Filing date: 1989-08-09
Publication date: 1991-04-02

Description

[Brief explanation of the drawing]

第１図は本考案の緩衝構造を備えた電気ねじ回
しの一実施例を示す要部縦断面図、第２図は第１
図の電気ねじ回しの分解斜視図、第３図は第１図
の電気ねじ回しの主要部材を説明するための拡大
斜視図、第４図は本考案の構造の他の実施例を示
す要部縦断面図、第５図は従来の電気ねじ回しの
対応する構造の要部縦断面図である。図面の主要符号、２０……出力機構、３０，３
０ａ……クラツチ機構、３６２，３６２ａ，３９
２，３９２ａ……外周縁、３４４……円柱ローラ
、３７２……ボール、３６２Ａ……緩衝リング。 Fig. 1 is a vertical cross-sectional view of essential parts showing an embodiment of an electric screwdriver equipped with a buffer structure of the present invention, and Fig.
FIG. 3 is an enlarged perspective view for explaining the main components of the electric screwdriver shown in FIG. 1, and FIG. 4 is a main part showing another embodiment of the structure of the present invention. FIG. 5 is a longitudinal sectional view of a main part of a corresponding structure of a conventional electric screwdriver. Main symbols in the drawing, 20... Output mechanism, 30, 3
0a...Clutch mechanism, 362, 362a, 39
2,392a...Outer peripheral edge, 344...Cylindrical roller, 372...Ball, 362A...Buffer ring.

Claims

[Claims for Utility Model Registration] 1. The rotational output of the output mechanism is received by the driving clutch plate and transmitted to the driven clutch plate across the frictional disengagement means, and when the braking torque received by the driven clutch plate exceeds a set value, the friction A shock absorbing structure for an electric screwdriver having a clutch mechanism configured to push and separate the driven clutch plates by a separating means and interrupt the transmission of the rotational output, wherein one or both of the driven clutch plate and the driven clutch plate are provided. A buffer portion is provided protrudingly extending in the disengagement direction and facing the opposite side, and the extending height of the buffer portion is such that when the clutch mechanism is in the engaged transmission state, it almost touches or slightly touches the opposite side. The shock absorbing structure of an electric screwdriver is set at a height that allows you to see it through a gap. 2. The active and passive clutch plates each have a thrust bearing, and the outer periphery of the thrust collar of the thrust bearing is shaped like a cylindrical flange, and the tips of both plates face each other to form the buffer section. Claim 1
Buffer structure of the electric screwdriver described. 3. A concave groove with an arcuate cross section extending in the radial direction is formed on one of the clutch plate surfaces facing each other of the active and passive clutch plates, and the cylindrical roller is loaded so as to be able to roll freely so that a part of the groove protrudes. 3. The shock absorbing structure for an electric screwdriver according to claim 1, wherein a spherical concave portion is formed on the other side, and the ball is inserted so as to be able to roll freely so that a portion of the ball protrudes. 4. The driving and passive clutch plates are provided with a thrust bearing, and the thrust bearing is provided so as to come into contact with a spring buffer portion formed by two opposing buffer rings formed in a convex shape from a spring plate material. A shock absorbing structure for an electric screwdriver according to claim 1, 2 or 3.