JPH0319640U

JPH0319640U -

Info

Publication number: JPH0319640U
Application number: JP7979489U
Authority: JP
Priority date: 1989-07-06
Filing date: 1989-07-06
Publication date: 1991-02-26
Anticipated expiration: 2004-07-06
Also published as: JPH0637868Y2

Description

[Brief explanation of the drawing]

第１図は本ボルト締付軸全体の縦断面図を示し
、Ａ図からＣ図は締付時の夫々の状態図、第２Ａ
，Ｂは着脱時の状態を示す作用図、Ｃ図は回転軸
の側面図と底面図、第３図は従来例を示す縦断面
図である。尚、図面中、１は本体、２は回転軸、２ａは長
孔、３はボール、４はソケツトレンチ、４ｃはフ
ランジ部、５はスプリング、７はアウターカラー
、７ａは逃がし部、２０はボルト、５１は本体、
５２は回転軸、５２ａは長孔、５４はソケツトレ
ンチ、５５はスプリング、Ｗはワークを示す。 Figure 1 shows a longitudinal sectional view of the entire bolt tightening shaft, Figures A to C are state diagrams during tightening, Figure 2A
, B are operational views showing the state at the time of attachment and detachment, FIG. C is a side view and bottom view of the rotating shaft, and FIG. 3 is a vertical sectional view showing a conventional example. In the drawings, 1 is the main body, 2 is the rotating shaft, 2a is the elongated hole, 3 is the ball, 4 is the socket trench, 4c is the flange, 5 is the spring, 7 is the outer collar, 7a is the relief part, 20 is the bolt, 51 is the main body,
52 is a rotating shaft, 52a is a long hole, 54 is a socket trench, 55 is a spring, and W is a workpiece.

Claims

[Scope of Claim for Utility Model Registration] A bolt tightening shaft is provided with a socket trench for bolt tightening at the tip of the rotating shaft. , a socket trench which is slidably fitted to the rotating shaft and has a flange formed on a part of its outer circumferential surface, and a socket trench which is slidably fitted to the outer periphery of the socket trench and has one end biased by a spring and the other end. The side is provided with an outer collar that engages with the flange portion, and a ball that is pushed into the socket trench by the inner circumferential surface of the outer collar and can freely protrude toward the mating surface side of the rotating shaft is inserted into the long groove or elongated groove of the rotating shaft. A bolt tightening shaft, characterized in that the outer collar is provided with a relief portion for the ball at a predetermined location, and is provided in correspondence with the position of the hole.