JPH0343111U

JPH0343111U -

Info

Publication number: JPH0343111U
Application number: JP10407489U
Authority: JP
Priority date: 1989-09-05
Filing date: 1989-09-05
Publication date: 1991-04-23
Anticipated expiration: 2004-09-05
Also published as: JPH0735136Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るねじ部材のプ
リセツト機構において、第１締結部材と第２締結
部材とを互いに締結する前の状態を示す縦断面図
、第２図は第１図中のねじケースの斜視図、第３
図は第２図に示したねじケースの平面図、第４図
は上記実施例に係るねじ部材のプリセツト機構に
おいて、第１締結部材と第２締結部材とを互いに
締結した状態を示す縦断面図、第５図は第２図に
示したねじケースの変形例を示す斜視図、第６図
は従来のねじ部材による二部材間の締結機構にお
いて、二部材を互いに締結する前の状態を示す二
部材の厚さ方向に垂直な方向の側面図、第７図は
第６図に示したねじ部材による二部材間の締結機
構において、二部材を互いに締結する途中の状態
を示す二部材の厚さ方向に垂直な方向の側面図、
第８図は他の従来のねじ部材による二部材間の締
結機構において、二部材を互いに締結したのちの
状態を示す二部材の厚さ方向に垂直な方向の側面
図、第９図は従来のねじ部材のプリセツト機構に
おいて、ねじ部材を第１締結部材に保持させた状
態を示す該第１締結部材の厚さ方向に垂直な方向
の側面図である。１……第１締結部材、１ａ……貫通穴（第１貫
通穴）、２……第２締結部材、２ａ……ねじ穴（
第１ねじ穴）、３……ねじ部材（第１トルクスね
じ）、３ａ……頭部、３ｂ……軸部、３ｃ……雄
ねじ、３ｄ……凹部、４……ねじケース、４ａ…
…突出係止部材（周状壁）、４ｂ……凸部、４ｄ
……切り欠き。 FIG. 1 is a longitudinal cross-sectional view showing a state before a first fastening member and a second fastening member are fastened to each other in a screw member presetting mechanism according to an embodiment of the present invention, and FIG. Perspective view of the screw case, 3rd
The figure is a plan view of the screw case shown in FIG. 2, and FIG. 4 is a longitudinal sectional view showing a state in which the first fastening member and the second fastening member are fastened to each other in the screw member presetting mechanism according to the above embodiment. , FIG. 5 is a perspective view showing a modified example of the screw case shown in FIG. 2, and FIG. 6 is a perspective view showing a state before two members are fastened together in a conventional fastening mechanism between two members using a screw member. FIG. 7 is a side view in a direction perpendicular to the thickness direction of the members, and FIG. 7 shows the thickness of the two members in the middle of fastening the two members to each other in the fastening mechanism between the two members using the screw member shown in FIG. side view perpendicular to the direction;
Fig. 8 is a side view in the direction perpendicular to the thickness direction of the two members, showing the state after the two members are fastened together in another conventional fastening mechanism between two members using screw members, and Fig. 9 is a side view of the conventional fastening mechanism between two members. FIG. 3 is a side view in a direction perpendicular to the thickness direction of the first fastening member, showing a state in which the threaded member is held by the first fastening member in the screw member presetting mechanism. 1... First fastening member, 1a... Through hole (first through hole), 2... Second fastening member, 2a... Screw hole (
1st screw hole), 3... Threaded member (first Torx screw), 3a... Head, 3b... Shaft, 3c... Male thread, 3d... Recess, 4... Screw case, 4a...
...Protruding locking member (peripheral wall), 4b...Protrusion, 4d
...Notch.

Claims

[Claims for Utility Model Registration] (1) After aligning the through hole 1a of the first fastening member 1 and the screw hole 2a of the second fastening member 2 coaxially with each other, the head 3a and the head 3a The shaft portion 3b of the screw member 3 is temporarily held by the first fastening member 1, and has a shaft portion 3b that protrudes further and has a male thread 3c formed on the circumferential surface to be screwed into the screw hole 2a. ,
The second fastening member 2 is inserted coaxially into the through hole 1a of the first fastening member 1 from the first fastening member side.
In the screw member presetting mechanism, the first fastening member 1 and the second fastening member 2 are fastened to each other by screwing into the threaded hole 2a of the first fastening member 1. Further, on the shaft insertion side surface of the screw member 3, there is a protruding locking member 4 that can be bent radially outward of the through hole 1a.
a is provided in a protruding manner, and a convex portion 4b is formed on either the inner surface of the protruding locking member 4a or the surface of the head 3a of the screw member 3 facing the inner surface of the protruding locking member 4a. , the tip of the shaft portion 3b of the screw member 3 is coaxially inserted into the through hole 1a of the first fastening member 1, and the screw member 3 is temporarily inserted into the protruding locking member 4a. A presetting mechanism for a screw member, characterized in that a recess 3d is formed into which the projection 4b is removably fitted so as to be locked and held in place. (2) the protruding locking member comprises a circumferential wall 4a;
2. The presetting mechanism for a screw member according to claim 1, wherein said circumferential wall 4a has a notch 4d extending along the axial direction from the tip end at a predetermined location along the circumferential direction.