JPH01138584U

JPH01138584U -

Info

Publication number: JPH01138584U
Application number: JP3076288U
Authority: JP
Priority date: 1988-03-08
Filing date: 1988-03-08
Publication date: 1989-09-21

Description

[Brief explanation of the drawing]

第１図は、本考案の実施例を示す縦断正面図、
第２図は、同上、作動状態の縦断正面図、第３図
は、同上、要部縦断正面図、第４図は、同上、コ
ントロールユニツト部作動状態を示す要部縦断正
面図、第５図は、同上、簡略正面図である。１……コントロールユニツト部、２……切換弁
部、３……衝撃発生部、４……作動弁部、５……
ピストン、６……バルブピストン、７……振動ピ
ストン、８……ヘツド、１１，４４……端蓋、１
２，２２……排気口、１３，１４，１５，２１，
４７，４８……通気路、４６，５５，７２……ば
ね、５１……絞り弁、５１′，５３′，５４′…
…通気口、５２……盲貫通気路、５３，５４……
環溝、６２……凹溝、Ｏ_１〜Ｏ_１４……Ｏリング
、ａ，ｂ，ｃ，ｄ……気室。 FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention;
Fig. 2 is a longitudinal sectional front view of the same as above in the operating state, Fig. 3 is a longitudinal sectional front view of the main part of the same as above, Fig. 4 is a longitudinal sectional front view of the main part showing the operating state of the control unit section of the same as above, and Fig. 5 is a simplified front view of the same as above. DESCRIPTION OF SYMBOLS 1...Control unit part, 2...Switching valve part, 3...Impact generating part, 4...Operation valve part, 5...
Piston, 6... Valve piston, 7... Vibrating piston, 8... Head, 11, 44... End cover, 1
2, 22...exhaust port, 13, 14, 15, 21,
47, 48... Ventilation passage, 46, 55, 72... Spring, 51... Throttle valve, 51', 53', 54'...
...Vent hole, 52...Blind penetration airway, 53, 54...
Ring groove, 62...concave groove, _O1 to _O14 ...O ring, a, b, c, d...air chamber.

補正昭６３．７．８考案の名称を次のように補正する。考案の名称気動打撃装置実用新案登録請求の範囲を次のように補正する
。Amendment July 8, 1983 The name of the invention is amended as follows. Title of the device: Pneumatic percussion device The scope of the claim for utility model registration is amended as follows.

【実用新案登録請求の範囲】高圧空気の通気路４７を開閉する作動弁部４と
、中心軸方向に通気孔５１′と連通した盲貫通気
路５２を形成し外周の所定位置に該盲貫通気路５
２と連通した通気口５３′，５４′を穿設したピ
ストン５を前後摺動可能に密嵌したコントロール
ユニツト部１、該コントロールユニツト部１の通
気路１４が連通した気室ｂと常時高圧空気が給気
されている気室ｃとの間の気密を保つて前後摺動
可能にバルブピストン６を密嵌した切換弁部２、
及び上記気室ｃと通気路２１を介して連通した気
室ｄ内に前後摺動可能にばね７２で付勢された振
動ピストン７を密嵌した衝撃発生部３とからなり
、コントロールユニツト部１の給排気によりバル
ブピストン６を駆動し、該バルブピストン６の給
排気により振動ピストン７を往復動させ、打撃振
動を生ぜしめることを特徴とする気動打撃装置。[Claims for Utility Model Registration] An operating valve part 4 that opens and closes a high-pressure air ventilation path 47, and a blind through air path 52 that communicates with the ventilation hole 51' in the central axis direction, and the blind through air path 52 is formed at a predetermined position on the outer periphery. airway 5
A control unit part 1 in which a piston 5 having ventilation holes 53' and 54' communicating with the control unit part 1 is tightly fitted so as to be able to slide forward and backward, and an air chamber b in which the ventilation passage 14 of the control unit part 1 communicates with constantly high-pressure air. a switching valve part 2 in which a valve piston 6 is tightly fitted so as to be able to slide back and forth while maintaining airtightness between the switching valve part 2 and the air chamber c to which air is supplied;
and an impact generating section 3 in which a vibrating piston 7, which is biased by a spring 72 and can be slid back and forth, is tightly fitted into an air chamber d that communicates with the air chamber c through an air passage 21. A pneumatic impact device characterized in that a valve piston 6 is driven by the supply and exhaust of air, and a vibrating piston 7 is reciprocated by the supply and exhaust of the valve piston 6 to generate impact vibration.

Claims

[Scope of utility model registration request]

An operating valve part 4 that opens and closes a ventilation passage 47 for high-pressure air, and a blind through air passage 52 that communicates with the ventilation hole 51' in the central axis direction are formed, and the blind through air passage 5 is formed at a predetermined position on the outer periphery.
A control unit part 1 in which a piston 5 having ventilation holes 53' and 54' communicating with the control unit part 1 is tightly fitted so as to be able to slide forward and backward, and an air chamber b in which the ventilation passage 14 of the control unit part 1 communicates with constantly high-pressure air. a switching valve part 2 in which a valve piston 6 is tightly fitted so as to be able to slide back and forth while maintaining airtightness between the switching valve part 2 and the air chamber c to which air is supplied;
and an impact generating section 3 in which a vibrating piston 7, which is biased by a spring 72 and can be slid back and forth, is tightly fitted into an air chamber d that communicates with the air chamber c through an air passage 21. An air betting hammer characterized in that a valve piston 6 is driven by the supply and exhaust of the valve piston 6, and a vibrating piston 7 is reciprocated by the supply and exhaust of the valve piston 6, thereby producing impact vibration.