SE8007274L - PNEUMATIC, SHOCKWORK WORKING MACHINE - Google Patents
PNEUMATIC, SHOCKWORK WORKING MACHINEInfo
- Publication number
- SE8007274L SE8007274L SE8007274A SE8007274A SE8007274L SE 8007274 L SE8007274 L SE 8007274L SE 8007274 A SE8007274 A SE 8007274A SE 8007274 A SE8007274 A SE 8007274A SE 8007274 L SE8007274 L SE 8007274L
- Authority
- SE
- Sweden
- Prior art keywords
- barrel
- valve
- pneumatic
- stroke chamber
- shockwork
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/16—Valve arrangements therefor
- B25D9/18—Valve arrangements therefor involving a piston-type slide valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
A pneumatic percussion machine comprises a barrel (1) with an exhaust opening (9) and a striker (6), movable in the barrel (1) and dividing the barrel's hollow into an idle stroke chamber (8) and a working stroke chamber (7), an air-distributing device, containing a valve box (12) and a valve (13). The valve box (12) contains inside an intermediate element (19) provided with an axial opening (22) and a channel (23) open to the atmosphere. The valve (13) is shaped as a hollow piston, its skirt (28) having a through radial opening (27) connecting periodically, upon operation of the valve (13), the working stroke chamber (7) with a source of compressed air and, through channels (23 and 26) in the intermediate element (19) and the barrel (1), respectively, with the atmosphere.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792727614A SU982894A2 (en) | 1979-02-20 | 1979-02-20 | Percussive pneumatic machine |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8007274L true SE8007274L (en) | 1980-10-16 |
Family
ID=20811406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8007274A SE8007274L (en) | 1979-02-20 | 1980-10-16 | PNEUMATIC, SHOCKWORK WORKING MACHINE |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS56500329A (en) |
GB (1) | GB2055429A (en) |
SE (1) | SE8007274L (en) |
SU (1) | SU982894A2 (en) |
WO (1) | WO1980001665A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4702147A (en) * | 1985-08-02 | 1987-10-27 | Johnson Don E | Engine with pneumatic valve actuation |
DE3540953A1 (en) * | 1985-11-19 | 1987-05-21 | Hilti Ag | POWDER POWERED BOLT SETTING DEVICE |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE470790C (en) * | 1927-10-01 | 1929-01-30 | Fried Krupp Akt Ges | Compressed air impact tool with a movable handle hood provided at the rear end of the tool |
US2090031A (en) * | 1936-06-09 | 1937-08-17 | Cleveland Rock Drill Co | Rock drill |
SU385716A1 (en) * | 1970-11-26 | 1973-06-14 | , Э. А. Абраменков | PNEUMATIC HAMMER |
-
1979
- 1979-02-20 SU SU792727614A patent/SU982894A2/en active
- 1979-11-30 WO PCT/SU1979/000127 patent/WO1980001665A1/en unknown
- 1979-11-30 JP JP50016579A patent/JPS56500329A/ja active Pending
- 1979-11-30 GB GB8033652A patent/GB2055429A/en not_active Withdrawn
-
1980
- 1980-10-16 SE SE8007274A patent/SE8007274L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPS56500329A (en) | 1981-03-19 |
GB2055429A (en) | 1981-03-04 |
WO1980001665A1 (en) | 1980-08-21 |
SU982894A2 (en) | 1982-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8007274-7 |