JPH049277U

JPH049277U -

Info

Publication number: JPH049277U
Application number: JP5005690U
Authority: JP
Priority date: 1990-05-14
Filing date: 1990-05-14
Publication date: 1992-01-27

Description

[Brief explanation of drawings]

第１図は本考案に係る案内筒付きスクリユード
ライバー用ビツトの要部縦断正面図、第２図は同
要部の端面図、第３図は同使用状態を示す正面図
、第４図及び第５図は締付け工程を示す説明図で
ある。１……ビツト本体、２……係合刃（十字ビツト
）、３……六角軸部、５……案内筒、６……先端
開口、７……開口端縁、８……後半部分、９……
通孔、１０……スナツプリング、１１……環状溝
、１２……ねじ、１３……頭部、１４……工具係
合溝、１５……座面。 Fig. 1 is a vertical sectional front view of the main parts of a screwdriver bit with a guide tube according to the present invention, Fig. 2 is an end view of the main parts, Fig. 3 is a front view showing the same state of use, Figs. FIG. 5 is an explanatory diagram showing the tightening process. 1... Bit body, 2... Engaging blade (cross bit), 3... Hexagonal shaft portion, 5... Guide tube, 6... Tip opening, 7... Opening edge, 8... Second half, 9 ……
Through hole, 10...Snat spring, 11...Annular groove, 12...Screw, 13...Head, 14...Tool engagement groove, 15...Seat surface.

Claims

[Claims for Utility Model Registration] (1) A guide tube is rotatably fitted into the tip of the bit body, and the tip opening of the guide tube has an inner diameter into which the head of a tightening screw is loosely fitted;
The bit protrudes from the engagement blade at the tip, and when the engagement blade is engaged with the tool engagement groove of the screw head, the bearing surface of the screw head extends beyond the edge of the tip opening of the engagement blade. A screwdriver bit with a guide tube, characterized in that it is configured to be located inward by a distance that is approximately equal to or slightly shorter than the biting length. (2) The screwdriver bit with a guide tube according to claim 1, wherein the distance is about 1.0 to 2.0 mm.