JPH0261518U

JPH0261518U -

Info

Publication number: JPH0261518U
Application number: JP13973488U
Authority: JP
Priority date: 1988-10-25
Filing date: 1988-10-25
Publication date: 1990-05-08

Description

[Brief explanation of drawings]

第１図はホールソーの分解した縦断面図。第２
図はホールソーの一部欠截した正面図。第３図は
偏心量が最小の状態を示す縦断した組立図。第４
図は偏心量が最大の状態を示す縦断した組立図。
第５図は平面図である。１……本体、２……上端面、３……シヤンク、
４……下端面、５……錐嵌挿穴、６……嵌挿外周
面、７……螺子溝、８……切刃、９……切刃形成
筒、１０……嵌挿筒、１１……嵌挿内周面、１２
……螺子溝、１３……セツト螺子、１４……セン
ター錐、１５……排出用バネ、１６……セツト螺
子、１７……偏心量表示目盛、１８……上端面、
１９……指示線、Ａ……偏心ホルダー、Ｂ……カ
ツター部材、ｅ……偏心量、ｅ_１……偏心量、Ｙ
……回転中心線、ｒ……半径、Ｄ……カツター直
径。 Figure 1 is an exploded vertical cross-sectional view of the hole saw. Second
The figure is a partially cutaway front view of the hole saw. FIG. 3 is a vertically sectional assembly diagram showing a state where the amount of eccentricity is minimum. Fourth
The figure is a vertically sectional assembly diagram showing the state with maximum eccentricity.
FIG. 5 is a plan view. 1...Main body, 2...Top end surface, 3...Shank,
4... Lower end surface, 5... Conical fitting insertion hole, 6... Fitting outer peripheral surface, 7... Thread groove, 8... Cutting blade, 9... Cutting blade forming cylinder, 10... Fitting insertion cylinder, 11 ... Insertion inner peripheral surface, 12
...Screw groove, 13...Set screw, 14...Center drill, 15...Discharge spring, 16...Set screw, 17...Eccentricity display scale, 18...Top end surface,
19... Indication line, A... Eccentric holder, B... Cutter member, e... Eccentricity, e ₁ ... Eccentricity, Y
...rotation center line, r...radius, D...cutter diameter.

Claims

[Claims for Utility Model Registration] 1. A fitting outer peripheral surface 6 is formed on the outer periphery of the lower half of the eccentric holder A, eccentric to the rotation center line Y of the center cone 14 fitted into the eccentric holder A, and a cutting edge 8 is formed on the outer periphery of the lower half of the eccentric holder A. The insertion inner peripheral surface 11 bored in the insertion tube 10 of the upper half of the provided cutter member B is bored eccentrically with respect to the rotation center line Y, and the insertion outer peripheral surface 6 which is eccentric This hole saw is assembled by inserting the fitting inner circumferential surface 11 and adjusting the eccentricity between the center of rotation Y of the center cone 14 and the center of rotation of the cutting blade 8. 2. The hole saw according to claim 1, wherein an indication line 19 and an eccentricity display scale 17 are displayed on the surfaces of the eccentric holder A and the cutter member B.