GB2279901A - Improvements in pneumatic powertools - Google Patents
Improvements in pneumatic powertoolsInfo
- Publication number
- GB2279901A GB2279901A GB9419797A GB9419797A GB2279901A GB 2279901 A GB2279901 A GB 2279901A GB 9419797 A GB9419797 A GB 9419797A GB 9419797 A GB9419797 A GB 9419797A GB 2279901 A GB2279901 A GB 2279901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- handle
- connection means
- resilient connection
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
- B25D17/245—Damping the reaction force using a fluid
-
- 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
- B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
A pneumatic power drill comprises a piston (13) reciprocal in a cylinder (12) defined within a cylindrical casing (11) of the tool. A bit (14) is actuable by the piston and means are provided by supplying air and pressure alternatively to opposite sides of the piston to reciprocate the piston in the cylinder. A handle (20) is slidably attached to the casing, resilient connection means being provided between the handle and the casing. The resilient connection means comprise a spring (46) and an air damper formed by compressed air filling a space around spring (46). The resilient connection means ensure that, in use, the vibration transmitted to the handle from the tool is substantially reduced. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929206978A GB9206978D0 (en) | 1992-03-31 | 1992-03-31 | Improvements in pneumatic power tools |
PCT/GB1993/000645 WO1993019899A1 (en) | 1992-03-31 | 1993-03-29 | Improvements in pneumatic powertools |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9419797D0 GB9419797D0 (en) | 1994-11-16 |
GB2279901A true GB2279901A (en) | 1995-01-18 |
GB2279901B GB2279901B (en) | 1995-12-20 |
Family
ID=10713144
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB929206978A Pending GB9206978D0 (en) | 1992-03-31 | 1992-03-31 | Improvements in pneumatic power tools |
GB9419797A Expired - Fee Related GB2279901B (en) | 1992-03-31 | 1993-03-29 | Improvements in pneumatic powertools |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB929206978A Pending GB9206978D0 (en) | 1992-03-31 | 1992-03-31 | Improvements in pneumatic power tools |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0633829A1 (en) |
AU (1) | AU3895193A (en) |
GB (2) | GB9206978D0 (en) |
TW (1) | TW242599B (en) |
WO (1) | WO1993019899A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285763B (en) * | 1994-01-11 | 1997-06-11 | Ingersoll Rand Co | Fluid metering device for compressed fluid operated tool |
TWI424910B (en) * | 2006-01-27 | 2014-02-01 | Exhaust Technologies Inc | Shock attenuating device for a rotary impact tool |
GB2458459A (en) * | 2008-03-17 | 2009-09-23 | Trevor Timmins | Vibration damping handle |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1053893A (en) * | 1951-07-02 | 1954-02-05 | Pneumatic tool | |
US2762341A (en) * | 1950-12-07 | 1956-09-11 | Paul A Salengro | Pneumatic tools |
FR1154429A (en) * | 1956-01-19 | 1958-04-10 | Advanced training in power tools | |
FR2136469A5 (en) * | 1971-04-19 | 1972-12-22 | Chicago Pneumatic Tool Co | |
FR2258248A1 (en) * | 1974-01-21 | 1975-08-18 | Thor Power Tool Co | |
US3920086A (en) * | 1974-05-23 | 1975-11-18 | Albert Adolfovich Goppen | Pneumatic hammer |
EP0019563A1 (en) * | 1979-05-15 | 1980-11-26 | Etablissements Montabert | Pneumatic percussive tool comprising a vibration damper |
FR2504440A1 (en) * | 1981-04-28 | 1982-10-29 | Permon Np | |
US4402369A (en) * | 1981-05-26 | 1983-09-06 | Moskovskoe Vysshee Technicheskoe Uchilische | Pneumatic tool |
EP0335328A2 (en) * | 1988-03-29 | 1989-10-04 | Politechnika Poznanska | Compressed-air supply system of vibro-isolated tools |
-
1992
- 1992-03-31 GB GB929206978A patent/GB9206978D0/en active Pending
-
1993
- 1993-03-29 AU AU38951/93A patent/AU3895193A/en not_active Abandoned
- 1993-03-29 GB GB9419797A patent/GB2279901B/en not_active Expired - Fee Related
- 1993-03-29 EP EP93907938A patent/EP0633829A1/en not_active Withdrawn
- 1993-03-29 WO PCT/GB1993/000645 patent/WO1993019899A1/en not_active Application Discontinuation
- 1993-06-17 TW TW082104845A patent/TW242599B/zh active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2762341A (en) * | 1950-12-07 | 1956-09-11 | Paul A Salengro | Pneumatic tools |
FR1053893A (en) * | 1951-07-02 | 1954-02-05 | Pneumatic tool | |
FR1154429A (en) * | 1956-01-19 | 1958-04-10 | Advanced training in power tools | |
FR2136469A5 (en) * | 1971-04-19 | 1972-12-22 | Chicago Pneumatic Tool Co | |
FR2258248A1 (en) * | 1974-01-21 | 1975-08-18 | Thor Power Tool Co | |
US3920086A (en) * | 1974-05-23 | 1975-11-18 | Albert Adolfovich Goppen | Pneumatic hammer |
EP0019563A1 (en) * | 1979-05-15 | 1980-11-26 | Etablissements Montabert | Pneumatic percussive tool comprising a vibration damper |
FR2504440A1 (en) * | 1981-04-28 | 1982-10-29 | Permon Np | |
US4402369A (en) * | 1981-05-26 | 1983-09-06 | Moskovskoe Vysshee Technicheskoe Uchilische | Pneumatic tool |
EP0335328A2 (en) * | 1988-03-29 | 1989-10-04 | Politechnika Poznanska | Compressed-air supply system of vibro-isolated tools |
Also Published As
Publication number | Publication date |
---|---|
WO1993019899A1 (en) | 1993-10-14 |
GB9206978D0 (en) | 1992-05-13 |
AU3895193A (en) | 1993-11-08 |
GB9419797D0 (en) | 1994-11-16 |
GB2279901B (en) | 1995-12-20 |
EP0633829A1 (en) | 1995-01-18 |
TW242599B (en) | 1995-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3563319D1 (en) | Percussion device | |
AU573228B2 (en) | Damping recoil in percussive tools | |
TW357113B (en) | Cylinder apparatus | |
SE8003177L (en) | VIBRATION DUMP DEVICE TOOL | |
DK0452543T3 (en) | Pneumatic impact tool | |
EP0283734A3 (en) | Percussive drilling apparatus with movable hammer head | |
GB9902793D0 (en) | Rotary hammer | |
ES491467A0 (en) | IMPROVEMENTS IN VIBRATION SHOCK ABSORBERS FOR PNEUMATIC PERCUSSION EQUIPMENT | |
FR2457152B1 (en) | ||
SE8401482L (en) | ELECTROPNEUMATIC DRILL HAMMERS | |
PL292330A1 (en) | Immersible pneumatic drilling unit | |
CA2157786A1 (en) | Pneumatic hammer | |
GB2279901A (en) | Improvements in pneumatic powertools | |
DE3778668D1 (en) | RAMM DRILLING DEVICE. | |
EP0265401A3 (en) | Damping device for a percussion rock drilling machine | |
EP1091140A3 (en) | Air Damper | |
SE8205029D0 (en) | A HYDRAULIC RECIPROCATING DEVICE | |
EP0441172A3 (en) | Boring ram | |
SE8401817L (en) | PNEUMATIC, SHOCKWORK WORKING MACHINE | |
SE8600745L (en) | PNEUMATIC, REVERSIBLE, SHOCKING WORKING DEVICE | |
AU8069191A (en) | Device for driving a longitudinally reciprocating tool | |
RU2009876C1 (en) | Air-operated percussion machine | |
GB2220988A (en) | An hydraulically operated impact or vibratory device | |
SU1123845A1 (en) | Handle for pneumatic percussive hand-held tool | |
SU1093532A1 (en) | Percussive pneumatic mechanism |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060329 |