JPH0329272U

JPH0329272U -

Info

Publication number: JPH0329272U
Application number: JP8826789U
Authority: JP
Priority date: 1989-07-27
Filing date: 1989-07-27
Publication date: 1991-03-22
Anticipated expiration: 2003-12-08
Also published as: JPH0546855Y2

Description

【図面の簡単な説明】第１図及び第２図は本考案に係る無反動式圧縮
空気作動釘打機の作動態様を示す縦断面図、第３
図ａ，ｂは給排気バルブの作動態様を示す縦断面
図である。符号、ａ……圧縮空気室、１……ハウジング、
３……釘、４……ノーズ部、６……可動シリンダ
、９……打撃ピストン、１０……メインバルブ、
１８……パイロツトバルブ、２２……起動バルブ
、３０……径差部、３１……シリンダ復帰チヤン
バ、３２……給排気バルブ。[Brief Description of the Drawings] Figures 1 and 2 are longitudinal sectional views showing the operating mode of the recoilless compressed air operated nailer according to the present invention,
Figures a and b are longitudinal sectional views showing how the supply and exhaust valves operate. Code, a... Compressed air chamber, 1... Housing,
3...nail, 4...nose part, 6...movable cylinder, 9...impact piston, 10...main valve,
18... Pilot valve, 22... Starting valve, 30... Diameter difference portion, 31... Cylinder return chamber, 32... Supply/exhaust valve.

Claims

[Claims for Utility Model Registration] (1) A housing provided with a nose portion having a nail injection port on the lower end side and a compressed air chamber connected to a compressed air source, and a nail striker that slides through the injection port. A movable cylinder that slidably accommodates a piston, is slidably disposed in the housing along the sliding direction of the striking piston, and has an upper end closed; In the nailing machine equipped with a main valve that selectively connects the compressed air chamber to the atmosphere, a diameter difference portion formed on the outer periphery of the movable cylinder and the inner periphery of the housing are provided with a valve that is connected to the compressed air chamber when communicating with the compressed air chamber. forming a cylinder return chamber for returning the movable cylinder, communicating compressed air in the cylinder return chamber with the compressed air chamber during normal operation, and at the same time or before the main valve communicates the inside of the movable cylinder with the compressed air chamber; A recoilless compressed air-operated nailer characterized by being opened to the atmosphere. (2) A housing having a nose portion having a nail injection port on the lower end side and a compressed air chamber connected to a compressed air source, and a nail striking piston that slides on the injection port are slidably accommodated. a movable cylinder which is disposed in the housing so as to be slidable along the sliding direction of the striking piston and whose upper end is closed; and a movable cylinder whose upper end is connected to the compressed air chamber and the atmosphere. In the nailing machine equipped with a main valve that is selectively connected, a cylinder return chamber is provided between the diameter difference portion formed on the outer periphery of the movable cylinder and the inner periphery of the housing to return the movable cylinder when communicating with the compressed air chamber. and a pilot valve for driving the main valve, which selectively connects the main valve control chamber containing the main valve to the compressed air chamber and the atmosphere, and the cylinder return chamber that normally connects to the compressed air chamber. an air supply/exhaust valve connected to the movable cylinder and operated to a position connecting the interior of the chamber to the atmosphere at the same time or before the main valve communicates the interior of the movable cylinder with the compressed air chamber; A recoilless compressed air-operated nailer characterized in that the and are simultaneously activated by a manually operable starting valve.