JPH0251025U

JPH0251025U -

Info

Publication number: JPH0251025U
Application number: JP12914488U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-10

Description

[Brief explanation of drawings]

第１図は本考案の一実施例であるベントタツプ
の正面図である。第２図は第１図における―
断面拡大図である。第３図は第２図における―
断面図である。第４図、第５図および第６図は
それぞれ係合部の別の態様を説明する図で、第３
図に相当する図である。１０：ベントタツプ、１２：タツプ刃部、１４
：曲り柄部、１６：継手管、１８：雄ねじ、２２
：切刃、２６：第１雄ねじ部、２８：係合凸部（
係合部）、３６：第２雄ねじ部、３８ａ，３８ｂ
：係合突起（係合部）、４４，４６：雌ねじ、５
０，５４，５６，６０，６２，６６：係合部。 FIG. 1 is a front view of a vent tap that is an embodiment of the present invention. Figure 2 is the same as in Figure 1.
It is an enlarged cross-sectional view. Figure 3 is the same as in Figure 2.
FIG. FIG. 4, FIG. 5, and FIG. 6 are diagrams each explaining another aspect of the engaging portion, and the third
FIG. 10: Bent tap, 12: Tap blade, 14
: Bent handle, 16: Joint pipe, 18: Male thread, 22
: Cutting edge, 26: First male threaded part, 28: Engagement convex part (
(engaging portion), 36: second male screw portion, 38a, 38b
: Engaging protrusion (engaging part), 44, 46: Female thread, 5
0, 54, 56, 60, 62, 66: Engagement portion.

Claims

[Scope of Claim for Utility Model Registration] A tap blade portion having a male thread corresponding to the female thread to be formed and a cutting edge formed along a direction intersecting the thread of the male screw, and a tap blade portion at the base end of the tap blade portion. A bent tap consisting of a curved handle part connected to the tap blade part in a detachable manner, the first male thread part having a twisting direction opposite to the male thread part provided at the base end of the tap blade part, and a first male thread part provided at the tip of the curved handle part. a second male threaded portion having the same twisting direction as the male thread; and a cylindrical joint tube having female threads having opposite twisting directions formed from openings at both ends and screwed into the first male threaded portion and the second male threaded portion; A vent tap characterized in that it has a pair of engaging parts provided at the tips of the first male threaded part and the second male threaded part, respectively, and engaged with each other so as not to rotate relative to each other.