JPS6171749U

JPS6171749U -

Info

Publication number: JPS6171749U
Application number: JP15684084U
Authority: JP
Priority date: 1984-10-17
Filing date: 1984-10-17
Publication date: 1986-05-16

Description

[Brief explanation of drawings]

第１図はこの考案の切削ビツト切削機に取付け
た状態を示す概略図、第２図は第１図のＡ−Ａ線
端面図、第３図はこの考案の切削ビツトによる溝
の切削状態を示す概略図、第４図は切削溝を示す
斜視図、第５図は切削溝にシール材を取付けた状
態を示す断面図、第６図は切削ビツトの別態様を
示す正面図、第７図は第６図のＢ−Ｂ線端面図、
第８図ａおよびｂ〜第１１図ａおよびｂは、従来
の切削ビツトを示す断面図およびその切削溝を示
す断面図である。１…回転軸、２…円盤、３…ビツト、４…コン
クリート構造物、４ａ…表面、５…切削溝、５ａ
…溝底部、５ｂ…開口部、６，７，８…ビツト、
９…切削ビツト、１０…切削機、１１…駆動部本
体、１２…回転軸、１３…刃先、１４…クラツク
、１５…溝、１５ａ…開口部、１５ｂ…溝底部、
１６…注入孔、１７…補修材、１８…シール材。 Fig. 1 is a schematic diagram showing the state in which the cutting bit of this invention is installed in a cutting machine, Fig. 2 is an end view taken along line A-A in Fig. 1, and Fig. 3 shows the cutting state of a groove by the cutting bit of this invention. FIG. 4 is a perspective view showing the cutting groove, FIG. 5 is a sectional view showing a sealing material attached to the cutting groove, FIG. 6 is a front view showing another aspect of the cutting bit, and FIG. 7 is an end view taken along line B-B in Fig. 6,
FIGS. 8a and b to FIGS. 11a and b are sectional views showing a conventional cutting bit and its cutting groove. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 2... Disc, 3... Bit, 4... Concrete structure, 4a... Surface, 5... Cutting groove, 5a
... Groove bottom, 5b... Opening, 6, 7, 8... Bit,
9... Cutting bit, 10... Cutting machine, 11... Drive unit main body, 12... Rotating shaft, 13... Cutting edge, 14... Crack, 15... Groove, 15a... Opening, 15b... Groove bottom,
16...Injection hole, 17...Repair material, 18...Seal material.

Claims

[Claim for Utility Model Registration] Cutting grooves to facilitate the work of filling the surface of cracks, joints, etc. with repair material and to ensure the repair effect when filling repair materials into cracks, joints, etc. of concrete structures. The bit is provided on the rotating shaft of the drive unit main body so that the cutting edge is in the axial direction of the rotating shaft and has a truncated conical shape that expands toward the cutting edge during rotation, and a plurality of sintered grains are provided. A cutting bit for repairing cracks, joints, etc. in concrete structures, characterized by having diamonds integrally formed therein.