JPH025487U

JPH025487U -

Info

Publication number: JPH025487U
Application number: JP8153188U
Authority: JP
Priority date: 1988-06-20
Filing date: 1988-06-20
Publication date: 1990-01-16

Description

[Brief explanation of drawings]

第１図〜第３図は、この考案の第１実施例を示
し、第１図は一部省略せる薄肉ダイヤモンドビツ
トの分解図、第２図は同組立図、第３図は同平面
図、第４図〜第６図は、第２実施例を示し、第４
図は一部省略せる分解図、第５図は同組立図、第
６図は同平面図、第７図は第２実施例の薄肉ダイ
ヤモンドビツトの平面図、第８図は同正面図、第
９図は従来の薄肉ダイヤモンドビツトの斜視図で
ある。１０，２０……台金、１１，２１……凹溝、１
１ａ，２１ａ……ボルト取付孔、１２，２２……
上端部、１３，２３……チツプ、１４，２４……
チツプ基台、１５，２５……基台、１５ａ，２５
ａ……上面、１５ｂ，２５ｂ……下面、１５ｃ，
２５ｃ……ボルト孔、１６，２６……首部、１７
……ボルト。 Figures 1 to 3 show a first embodiment of this invention, with Figure 1 being an exploded view of a thin diamond bit that can be partially omitted, Figure 2 being an assembled view of the same, and Figure 3 being a plan view of the same. Figures 4 to 6 show the second embodiment;
The figures are exploded views that can be partially omitted, FIG. 5 is an assembled view, FIG. 6 is a plan view, FIG. 7 is a plan view of the thin diamond bit of the second embodiment, FIG. FIG. 9 is a perspective view of a conventional thin-walled diamond bit. 10,20...base metal, 11,21...concave groove, 1
1a, 21a... Bolt mounting hole, 12, 22...
Upper end, 13, 23... Chip, 14, 24...
Chip base, 15, 25... base, 15a, 25
a...Top surface, 15b, 25b...Bottom surface, 15c,
25c... Bolt hole, 16, 26... Neck, 17
……bolt.

Claims

[Scope of Claim for Utility Model Registration] 1. A groove is provided at the upper end of the cylindrical metal base, the lower part of the chip base is fitted into the groove, and the chip base is screwed onto the cylindrical metal base. Thin-walled diamond bit. 2. A groove is provided at the upper end of the cylindrical metal base, and a protrusion is formed on the lower surface of the chip base, and the protrusion is fitted into the groove of the cylindrical metal base, and the chip base is A thin diamond bit screwed onto a cylindrical metal base. 3. The thin-walled diamond according to claims 1 and 2, wherein the groove of the cylindrical metal base into which the part of the chip base is fitted is a groove formed by cutting out the upper end of the base metal in a rectangular wave shape in the circumferential direction. Bit. 4. The thin diamond bit according to claim 2, wherein the protrusion provided on the lower surface of the chip base projects from the central lower surface of the base. 5. The thin-walled diamond bit according to claim 1, wherein the chip base has a neck portion on the top surface of the base, and the neck portion protrudes from the top surface of the base metal when the chip base is fitted with the base metal. 6. The thin-walled diamond bit according to claims 1 and 2, wherein the diamond chip is disposed at the upper part of the neck of the chip base. 7. The thin diamond bit according to claims 1 and 2, wherein the chip base is made of a harder material than the cylindrical metal base.