FR2375959A1 - Machine pneumatique portative a percussion - Google Patents
Machine pneumatique portative a percussionInfo
- Publication number
- FR2375959A1 FR2375959A1 FR7800056A FR7800056A FR2375959A1 FR 2375959 A1 FR2375959 A1 FR 2375959A1 FR 7800056 A FR7800056 A FR 7800056A FR 7800056 A FR7800056 A FR 7800056A FR 2375959 A1 FR2375959 A1 FR 2375959A1
- Authority
- FR
- France
- Prior art keywords
- compressed air
- working chambers
- cylindrical sleeve
- impact tool
- sleeve valve
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
- E02D3/061—Tampers with directly acting explosion chambers
-
- 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
- B25D9/20—Valve arrangements therefor involving a tubular-type slide valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D2209/005—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is coaxial with the piston
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Agronomy & Crop Science (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Road Paving Machines (AREA)
Abstract
L'invention concerne les constructions mécaniques. La machine pneumatique faisant l'objet de l'invention est caractérisée en ce que la soupape 22 est exécutée sous forme d'une douille cylindrique enveloppant par sa surface intérieure 28 au moins un orifice 32 à travers lequel l'air comprimé est amené dans l'enceinte de distribution 19 et qui débouche dans au moins un canal longitudinal 29 pratiqué dans ladite soupape, relié constamment à la source d'air comprimé à travers ledit orifice et destiné à amener l'air comprimé aux canaux d'entrée des chambres de travail. La machine en question peut être utilisée notamment dans les ateliers de fonderie pour le serrage du sable de moulage, ainsi que dans le bâtiment et les travaux publics.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772440929A SU745670A1 (ru) | 1977-01-04 | 1977-01-04 | Воздухораспределительное устройство пневматических машин ударного действи |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2375959A1 true FR2375959A1 (fr) | 1978-07-28 |
FR2375959B1 FR2375959B1 (fr) | 1980-10-17 |
Family
ID=20690943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7800056A Granted FR2375959A1 (fr) | 1977-01-04 | 1978-01-03 | Machine pneumatique portative a percussion |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS53108606A (fr) |
AT (1) | AT361417B (fr) |
CS (1) | CS210321B1 (fr) |
DD (1) | DD135589A1 (fr) |
DE (1) | DE2758621C2 (fr) |
FR (1) | FR2375959A1 (fr) |
SE (1) | SE428895B (fr) |
SU (1) | SU745670A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2887989A (en) * | 1958-07-03 | 1959-05-26 | Richard O Dulaney | Pneumatic rotary drill hammer |
US3453657A (en) * | 1967-04-17 | 1969-07-01 | Maston C Bolton | Fluid actuated percussion tool |
FR2032415A1 (fr) * | 1969-02-26 | 1970-11-27 | Inst Gornogo Dela Sibirskogo O |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE225920C (fr) * | ||||
FR583873A (fr) * | 1923-08-07 | 1925-01-23 | Marteau pneumatique à river, buriner, etc. | |
US1665046A (en) * | 1924-10-29 | 1928-04-03 | Ralph H Tucker | Pneumatic hammer |
US2070299A (en) * | 1934-05-16 | 1937-02-09 | Chicago Pneumatic Tool Co | Valve for percussive tools |
JPS4720353U (fr) * | 1971-02-12 | 1972-11-07 | ||
RO74260A (fr) * | 1974-04-25 | 1980-10-30 | Oy Tampella Ab,Fi | Perforateur percutant actione a liquide sous pression |
-
1977
- 1977-01-04 SU SU772440929A patent/SU745670A1/ru active
- 1977-12-28 JP JP15757377A patent/JPS53108606A/ja active Granted
- 1977-12-29 DE DE19772758621 patent/DE2758621C2/de not_active Expired
- 1977-12-29 AT AT941077A patent/AT361417B/de not_active IP Right Cessation
- 1977-12-29 SE SE7714910A patent/SE428895B/sv not_active IP Right Cessation
-
1978
- 1978-01-02 DD DD20306978A patent/DD135589A1/xx not_active IP Right Cessation
- 1978-01-03 CS CS8778A patent/CS210321B1/cs unknown
- 1978-01-03 FR FR7800056A patent/FR2375959A1/fr active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2887989A (en) * | 1958-07-03 | 1959-05-26 | Richard O Dulaney | Pneumatic rotary drill hammer |
US3453657A (en) * | 1967-04-17 | 1969-07-01 | Maston C Bolton | Fluid actuated percussion tool |
FR2032415A1 (fr) * | 1969-02-26 | 1970-11-27 | Inst Gornogo Dela Sibirskogo O |
Also Published As
Publication number | Publication date |
---|---|
CS210321B1 (en) | 1982-01-29 |
JPS5745843B2 (fr) | 1982-09-30 |
SU745670A1 (ru) | 1980-07-07 |
AT361417B (de) | 1981-03-10 |
DD135589A1 (de) | 1979-05-16 |
SE7714910L (sv) | 1978-07-05 |
SE428895B (sv) | 1983-08-01 |
FR2375959B1 (fr) | 1980-10-17 |
JPS53108606A (en) | 1978-09-21 |
ATA941077A (de) | 1980-07-15 |
DE2758621C2 (de) | 1982-04-01 |
DE2758621A1 (de) | 1978-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB824544A (en) | Improvements in and relating to exhaust silencers and diffusers | |
ES446017A1 (es) | Perfeccionamientos introducidos en una herramienta de impac-to. | |
GR3022683T3 (en) | Fluid spray device | |
GB1305004A (fr) | ||
GB1307491A (en) | Self-propelled percussive mechanism for making holes in soil | |
ES470504A1 (es) | Una fuente de sonido sismico para liberar gas bajo presion en una masa de agua. | |
ATE48187T1 (de) | Druckgaszufuehrung in luftgewehren. | |
FR2375959A1 (fr) | Machine pneumatique portative a percussion | |
GB1532122A (en) | Percussive pneumatic apparatus for driving holes in the ground by compacting same | |
SE8401817D0 (sv) | Pneumatisk, med slagverkan arbetande maskin | |
SE8600745L (sv) | Pneumatisk, reversibel, med slagverkan arbetande anordning | |
GB1313899A (en) | Pneumatically operated impact-action self-propelled mechanism for driving holes in the earth | |
ES473092A1 (es) | Un aparato de impacto o martillo operable por fluido. | |
GB1365105A (en) | Single stage or multi stage expansion engine | |
SU571597A2 (ru) | Пневматический молоток | |
FR2361562A1 (fr) | Dispositif pour propulser pneumatiquement a grande vitesse un piston et le rappeler hydrauliquement | |
FR2281194A1 (fr) | Appareil de percussion a commande pneumatique | |
ES458572A1 (es) | Unos perfeccionamientos en las herramientas neumaticas de percusion. | |
ATE232066T1 (de) | Pneumatisches extraktionsmittel zum gebrauch bei zahnprothetik | |
SU1678100A1 (ru) | Пневматическое устройство ударного действия | |
FR2408016A1 (fr) | Fusee de forage souterrain a commande pneumatique | |
SU806398A1 (ru) | Пневматический молоток | |
FR2443903A1 (fr) | Engin pneumatique a percussion | |
SU128410A1 (ru) | Ручной или телескопный бурильный молоток | |
SU739226A1 (ru) | Пневматическа машина ударного действи |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |