JPH03103178U

JPH03103178U -

Info

Publication number: JPH03103178U
Application number: JP1254090U
Authority: JP
Priority date: 1990-02-09
Filing date: 1990-02-09
Publication date: 1991-10-25

Description

[Brief explanation of drawings]

第１図は、本考案になるトメワ保持構造の要部
断面図であり、１……トメワ、２……アンビル軸
、２ａ……トメワ用溝、２ｂ……溝斜面、３……
ガイドスリーブ、３ａ……突当て斜面、３ｂ……
ガイドスリーブ内周面である。第２図は、従来のトメワ保持構造であり、４…
…軸、４ａ……トメワ用溝、４ｂ……溝角部、５
……スリーブ、５ａ……突当て角部である。第３図は、円形断面のピアノ線からなるトメワ
１の斜視図である。第４図は、実施例に示したイ
ンパクトレンチの構造を示す断面図であり、１…
…トメワ、２……アンビル軸、３……ガイドスリ
ーブ、１０……バツテリー、１１……モータ、１
２……遊星歯車、１３……スピンドル、１４……
ハンマ、１５……スチールボール、１６……ハン
マスプリング、１７……スプリング、１９……ス
チールボールである。 FIG. 1 is a sectional view of the main parts of the tome retaining structure according to the present invention, 1... Tomewa, 2... Anvil shaft, 2a... Groove for tomewa, 2b... Groove slope, 3...
Guide sleeve, 3a...Abutting slope, 3b...
This is the inner peripheral surface of the guide sleeve. Figure 2 shows a conventional tomewa holding structure, with 4...
...shaft, 4a...groove for tomewa, 4b...groove corner, 5
. . . Sleeve, 5a . . . A butting corner portion. FIG. 3 is a perspective view of the tome 1 made of piano wire with a circular cross section. FIG. 4 is a sectional view showing the structure of the impact wrench shown in the example, and 1...
...Tomewa, 2...Anvil shaft, 3...Guide sleeve, 10...Battery, 11...Motor, 1
2... Planetary gear, 13... Spindle, 14...
Hammer, 15... steel ball, 16... hammer spring, 17... spring, 19... steel ball.

Claims

[Scope of utility model registration request]

A shaft having an annular groove, a sleeve-like member that engages with the shaft, and a stopper retainer made of steel wire and a stopper with circular and polygonal cross sections that are locked in the groove and prevent the sleeve-like member from coming off. In the structure, the tip groove of the shaft is provided with a plane or an arc so that the contact point between the side surface of the tip groove of the shaft and the outer periphery of the tip is in contact with a surface located on the center side of the shaft from the axis of the tip. The abutting surfaces of the sleeve-shaped member and the tome are provided at positions opposite to the abutting surfaces of the grooves, so that the tome is in contact with the sloped surface or arcuate surface of the abutting surface, and the tome is expanded along the inclined surface. A grip holding structure for a vibrating tool, characterized in that the outer periphery of the grip is held down by the inner surface of the sleeve-like member in order to prevent it from falling out of the groove of the shaft.