JPS641872U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る釘打機の要部断面側面図
、第２図はその平面図であり、第３図は弁座板か
らみたボデイ部の構成配置図、第４図ａ，ｂは打
撃シリンダとこれに臨む開口の形状を変えた場合
のエア流入の比較図である。 符号Ａ……釘打機、ａ……ハウジング、１……
圧縮エア供給源、３……打撃用ピストン、４……
打撃シリンダ、５……メインエアチヤンバ、７…
…ヘツドバルブ、１６……弁座板、１７……開口
、２０……シール部、２１……排気孔。 Fig. 1 is a cross-sectional side view of the main parts of the nailing machine according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a structural layout diagram of the body section seen from the valve seat plate, and Figs. 4 a and b. is a comparison diagram of air inflow when the shape of the impact cylinder and the opening facing the cylinder are changed. Code A... Nailer, a... Housing, 1...
Compressed air supply source, 3... striking piston, 4...
Impact cylinder, 5... Main air chamber, 7...
...Head valve, 16...Valve seat plate, 17...Opening, 20...Seal portion, 21...Exhaust hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ハウジングの後部にグリツプ部を、前部に釘打
撃用ピストンを摺動自在に収容する打撃シリンダ
を設けるとともに、上記グリツプ部内に圧縮エア
供給源に接続するメインエアチヤンバの主要部を
形成した釘打機であつて、上記打撃シリンダを、
上記ハウジングの前端壁と該前端壁に連続する両
側壁と該両側壁間に形成した第１の仕切壁とによ
つて断面略四角形に形成するとともに、上記打撃
ピストンを断面略四角形に形成し、上記打撃シヌ
リンダの後方には、上記第１の仕切壁と両側壁と
第１の仕切壁の後方で上記両側壁間に形成された
第２の仕切壁とによつて打撃ピストンリターン用
エアチヤンバを画成する一方、上記打撃シリンダ
の上端を閉塞する弁座板の上方には、上記打撃シ
リンダを上記メインエアチヤンバ又は排気孔とに
選択的に連通・遮断する断面略四角形のヘツドバ
ルブを後方に偏位させて配置したことを特徴とす
る釘打機。 A nail is provided with a grip part in the rear part of the housing and a striking cylinder which slidably accommodates a nail striking piston in the front part, and in which the main part of a main air chamber connected to a compressed air supply source is formed in the grip part. A striking machine, the above-mentioned striking cylinder,
The front end wall of the housing, both side walls continuous to the front end wall, and a first partition wall formed between the both side walls are formed into a substantially square cross section, and the striking piston is formed to have a substantially square cross section, At the rear of the striking cylinder, a striking piston return air chamber is defined by the first partition wall, both side walls, and a second partition wall formed between the both side walls behind the first partition wall. On the other hand, above the valve seat plate that closes the upper end of the percussion cylinder, a head valve having a substantially rectangular cross section that selectively communicates and shuts off the percussion cylinder with the main air chamber or the exhaust hole is biased rearward. A nailing machine characterized by being arranged in a vertical position.