JPH01170570U

JPH01170570U -

Info

Publication number: JPH01170570U
Application number: JP6696588U
Authority: JP
Priority date: 1988-05-20
Filing date: 1988-05-20
Publication date: 1989-12-01

Description

[Brief explanation of the drawing]

第１図は本考案によるアンビルの正面図及び側
面図、第２図は本考案によるハンマの正面図及び
側面図、第３図は本考案によるアンビルのアンビ
ル爪及びハンマのハンマ爪を円周方向に展開した
図、第４図は従来技術によるインパクトレンチの
要部断面側面図、第５図は従来技術によるアンビ
ルの正面図及び側面図、第６図は従来技術による
ハンマの正面図及び側面図、第７図は従来技術に
よるアンビルのアンビル爪及びハンマのハンマ爪
を円周方向に展開した図である。図において１はスピンドル、２はハンマ、３は
スピンドルカム、４はハンマカム、５はハンマ爪
、６はスチールボール、７はスプリング、８はア
ンビル爪、９はアンビル、１０は面取り部である
。 Fig. 1 is a front view and a side view of an anvil according to the present invention, Fig. 2 is a front view and a side view of a hammer according to the present invention, and Fig. 3 is an anvil claw of an anvil and a hammer claw of a hammer according to the present invention in the circumferential direction. 4 is a cross-sectional side view of the main part of an impact wrench according to the prior art, FIG. 5 is a front view and a side view of an anvil according to the prior art, and FIG. 6 is a front view and a side view of a hammer according to the prior art. , FIG. 7 is a circumferentially developed view of an anvil pawl of an anvil and a hammer pawl of a hammer according to the prior art. In the figure, 1 is a spindle, 2 is a hammer, 3 is a spindle cam, 4 is a hammer cam, 5 is a hammer pawl, 6 is a steel ball, 7 is a spring, 8 is an anvil pawl, 9 is an anvil, and 10 is a chamfer.

Claims

[Scope of utility model registration request]

It has a hammer cam formed on the hammer, a spindle cam formed on the spindle, a steel ball that connects the hammer cam and the spindle cam, and a spring that urges the hammer cam to the spindle cam via the steel ball, and reciprocates the rotational movement of the hammer. In an impact wrench, the impact wrench is equipped with a cam mechanism that converts motion into motion, and has a structure in which a hammer claw provided on the hammer engages with an anvil claw provided on the anvil, the number of the anvil claws or hammer claws being at least three or more, and A striking mechanism for an impact wrench, characterized in that a chamfered portion is formed on the ridgeline portion of the anvil claw facing the hammer.