JPH0483584U

JPH0483584U -

Info

Publication number: JPH0483584U
Application number: JP12555090U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-21

Description

[Brief explanation of the drawing]

図面の第１図乃至第６図は、本考案の実施例を
示すものであり、第１図は本エアシリンダーの正
面断面図、第２図は平面図、第３図は第１図のＡ
−Ａ矢視側面図、第４図は第１図のＢ−Ｂ矢視側
面図である。第５図は空気給排切換弁の作動説明
図である。第６図は本エアシリンダーの作動説明
図である。第７図および第８図は従来例を示すも
のであり第７図は従来単動エアシリンダの正面断
面図を示し、第８図は従来複動エアシリンダの正
面断面図である。１……本エアシリンダー、５……外筒、６……
後蓋、７……前蓋、８……ピストン、９……ピス
トンロツド、１０……ピストン後面気室、１１…
…給気孔、１２……外部排出孔、１５……第１通
気孔、２０……ピストン前面気室、３０……ピス
トン中空室、３４……第２通気孔、３６……ピス
トン横断気孔、４０……通気管体、４５……通気
管、５０……空気給排切換弁、５１……弁棒、５
２……スプリング、５３……切換弁給気孔、５４
……通気室、５５……押ボタン、５６……第１給
排孔、５７……第２給排孔、５８……第１排気孔
、５９……第２排気孔、６０……レバー、７０…
…従来単動エアシリンダ、７１，８１……シリン
ダ、８０……従来複動エアシリンダ、７２……気
室、７４，８４……ピストン、７５，８５……出
力軸、７９……スプリング、８２……第１気室、
８３……第２気室、８６……第２気室通気孔、８
７……切換弁。 1 to 6 of the drawings show an embodiment of the present invention. FIG. 1 is a front sectional view of the air cylinder, FIG. 2 is a plan view, and FIG. 3 is a cross-sectional view of the air cylinder shown in FIG.
4 is a side view taken along line B-B in FIG. 1. FIG. 5 is an explanatory diagram of the operation of the air supply/discharge switching valve. FIG. 6 is an explanatory diagram of the operation of this air cylinder. 7 and 8 show conventional examples. FIG. 7 is a front sectional view of a conventional single-acting air cylinder, and FIG. 8 is a front sectional view of a conventional double-acting air cylinder. 1... main air cylinder, 5... outer cylinder, 6...
Rear cover, 7...Front cover, 8...Piston, 9...Piston rod, 10...Piston rear air chamber, 11...
... Air supply hole, 12 ... External discharge hole, 15 ... First ventilation hole, 20 ... Piston front air chamber, 30 ... Piston hollow chamber, 34 ... Second ventilation hole, 36 ... Piston transverse air hole, 40 ... Ventilation pipe body, 45 ... Ventilation pipe, 50 ... Air supply/exhaust switching valve, 51 ... Valve rod, 5
2...Spring, 53...Switching valve air supply hole, 54
... Ventilation chamber, 55 ... Push button, 56 ... First supply and exhaust hole, 57 ... Second supply and discharge hole, 58 ... First exhaust hole, 59 ... Second exhaust hole, 60 ... Lever, 70...
... Conventional single-acting air cylinder, 71, 81 ... Cylinder, 80 ... Conventional double-acting air cylinder, 72 ... Air chamber, 74, 84 ... Piston, 75, 85 ... Output shaft, 79 ... Spring, 82 ...first air chamber,
83...Second air chamber, 86...Second air chamber vent, 8
7...Switching valve.

Claims

[Scope of utility model registration request]

In an air cylinder that can be reciprocated by pneumatic pressure, the piston and a part of the piston rod are hollow, and the hollow part is provided with a passage for piston restoration air to the piston front air chamber and an air supply/exhaust switching valve. , an air supply/exhaust switching valve that controls supply/exhaust to and from the piston front air chamber and the piston rear air chamber, and a lever for operating the air supply/exhaust switching valve, thereby short-circuiting the air supply/exhaust passage to create a double-acting air cylinder. A double-acting air cylinder for a pneumatic tool, which is characterized by a structure designed to reduce weight and size.