JPH02135118U

JPH02135118U -

Info

Publication number: JPH02135118U
Application number: JP4209089U
Authority: JP
Priority date: 1989-04-11
Filing date: 1989-04-11
Publication date: 1990-11-09

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図および第２図は、本考案に係わる丸刃工
具の第１実施例を示す縦断面図および横断面図、
第３図は同実施例における偏心リングの斜視図、
第４図ないし第６図は本考案の第２ないし第４実
施例の縦断面図、第７図および第８図は第５実施
例の縦断面図および横断面図、第９図および第１
０図は第６実施例の縦断面図および横断面図、第
１１図および第１２図は第７実施例の横断面図お
よび縦断面図、第１３図および第１４図は丸刃固
定治具への丸刃の固定構造を示す縦断面図である
。一方、第１５図および第１６図は、従来の丸刃
工具を示す縦断面図および横断面図である。１１……駆動軸、１２…丸刃固定治具、１３…
…固定孔、１４……偏心凹部、１５……偏心リン
グ、１６，１８……環状溝、１７……金属球（滑
動機構）、１９……回り止めピン、２３……雌ネ
ジリング、２４……丸刃。 1 and 2 are a longitudinal sectional view and a transverse sectional view showing a first embodiment of a round-blade tool according to the present invention,
FIG. 3 is a perspective view of the eccentric ring in the same embodiment;
4 to 6 are longitudinal sectional views of the second to fourth embodiments of the present invention, FIGS. 7 and 8 are longitudinal sectional views and transverse sectional views of the fifth embodiment, and FIGS. 9 and 1.
Figure 0 is a vertical cross-sectional view and a cross-sectional view of the sixth embodiment, Figures 11 and 12 are cross-sectional views and vertical cross-sectional views of the seventh embodiment, and Figures 13 and 14 are a round blade fixing jig. It is a longitudinal cross-sectional view showing the fixing structure of the round blade to the. On the other hand, FIGS. 15 and 16 are a longitudinal cross-sectional view and a cross-sectional view showing a conventional round-blade tool. 11... Drive shaft, 12... Round blade fixing jig, 13...
... Fixing hole, 14 ... Eccentric recess, 15 ... Eccentric ring, 16, 18 ... Annular groove, 17 ... Metal ball (sliding mechanism), 19 ... Stopping pin, 23 ... Female screw ring, 24 ... Round blade.

Claims

【実用新案登録請求の範囲】 (1) 丸刃固定治具の固定孔に駆動軸を通して固
定し、この丸刃固定治具に円環状の丸刃を固定し
てなる丸刃工具において、前記丸刃固定治具の固定孔の内部に、この固定
孔の軸線に対し偏心した内周面を有する円環形の
偏心凹部を形成するとともに、この偏心凹部には
、外周面が内周面に対し偏心した偏心リングを収
容し、前記固定孔および偏心リングに駆動軸を挿
通して偏心リングと駆動軸を係合させたうえ、偏
心リングと丸刃固定治具とを相対回転させて丸刃
固定治具を駆動軸に固定したことを特徴とする丸
刃工具。 (2) 前記偏心リングと丸刃固定治具との間には
、これらの相対回転抵抗を低減するための滑動機
構が設けられていることを特徴とする第１項記載
の丸刃工具。 (3) 前記偏心凹部の前記固定孔に対する偏心量
は、駆動軸の外径の０．０２〜５％であることを
特徴とする第１項または第２項記載の丸刃工具。[Scope of Claim for Utility Model Registration] (1) A round blade tool which is fixed by passing a drive shaft through a fixing hole of a round blade fixing jig and fixing an annular round blade to this round blade fixing jig, An annular eccentric recess is formed inside the fixing hole of the blade fixing jig, and the outer circumferential surface is eccentric with respect to the inner circumferential surface. The eccentric ring is inserted into the fixing hole and the eccentric ring to engage the eccentric ring and the drive shaft, and the eccentric ring and the round blade fixing jig are rotated relative to each other to fix the round blade fixing jig. A round-blade tool characterized by a tool fixed to a drive shaft. (2) The round-blade tool according to item 1, wherein a sliding mechanism is provided between the eccentric ring and the round-blade fixing jig to reduce relative rotational resistance therebetween. (3) The round-blade tool according to item 1 or 2, wherein the eccentricity of the eccentric recess with respect to the fixing hole is 0.02 to 5% of the outer diameter of the drive shaft.