FR2385496A1 - Pneumatic drill with bit guide sleeve one end - has air distributor encased in shock absorbent casing other end - Google Patents

Pneumatic drill with bit guide sleeve one end - has air distributor encased in shock absorbent casing other end

Info

Publication number
FR2385496A1
FR2385496A1 FR7734527A FR7734527A FR2385496A1 FR 2385496 A1 FR2385496 A1 FR 2385496A1 FR 7734527 A FR7734527 A FR 7734527A FR 7734527 A FR7734527 A FR 7734527A FR 2385496 A1 FR2385496 A1 FR 2385496A1
Authority
FR
France
Prior art keywords
casing
distributor
pneumatic drill
shock absorbent
encased
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
Application number
FR7734527A
Other languages
French (fr)
Other versions
FR2385496B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEKAFOR
Original Assignee
MEKAFOR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MEKAFOR filed Critical MEKAFOR
Publication of FR2385496A1 publication Critical patent/FR2385496A1/en
Application granted granted Critical
Publication of FR2385496B1 publication Critical patent/FR2385496B1/fr
Granted legal-status Critical Current

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
    • B25D17/11—Arrangements of noise-damping means
    • 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

Abstract

The pneumatic drill has a circular hollow section body (1) with its ends closed by a bit-guiding sleeve (7) and a distributor unit (2). Around the body (1) itself is a moulded casing (13). Inside is a reciprocating piston (9) displaced by compressed air, driving a bit mounted in a polygonal opening (8) in the nose sleeve (7). The casing (13) extends to include the operating handle (12). The seats forming the limits of piston travel are formed by the sleeve (7) and the distributor (2). The casing (13) is of both sound and shock absorbent material forming with the external faces the passages (18, 19) for the outgoing compressed air circuits. The distributor (2) controls the flow of compressed air into the body (1) and the casing (13), which may be of aluminium, may be force-fitted on to the body (1).
FR7734527A 1977-03-28 1977-11-10 Pneumatic drill with bit guide sleeve one end - has air distributor encased in shock absorbent casing other end Granted FR2385496A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH387777A CH605044A5 (en) 1977-03-28 1977-03-28

Publications (2)

Publication Number Publication Date
FR2385496A1 true FR2385496A1 (en) 1978-10-27
FR2385496B1 FR2385496B1 (en) 1982-12-03

Family

ID=4265406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734527A Granted FR2385496A1 (en) 1977-03-28 1977-11-10 Pneumatic drill with bit guide sleeve one end - has air distributor encased in shock absorbent casing other end

Country Status (2)

Country Link
CH (1) CH605044A5 (en)
FR (1) FR2385496A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398581A1 (en) * 1977-07-29 1979-02-23 Maco Meudon Sa Valve for pneumatic drill - has inset trigger displacing piston rod which pivots conical plug located in air feed pipe
DE3007577A1 (en) * 1979-02-28 1981-02-05 Compair Constr Mining Ltd PISTON-CYLINDER DEVICE OPERATING WITH GAS PRESSURE
EP0166681A1 (en) * 1984-05-29 1986-01-02 SIG Schweizerische Industrie-Gesellschaft Pneumatically driven hammer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265322A (en) * 1978-09-19 1981-05-05 Maco-Meudon Compressed air feed control system for a tapping device
EP0144282B1 (en) * 1983-11-02 1988-07-27 Heinrich Henze Hydraulic hammer
CN109352009A (en) * 2018-10-19 2019-02-19 陈祥贤 A kind of digital control drilling machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191220091A (en) * 1912-09-03 1913-09-03 George Lawson Robertson Improvements in Pneumatic Hammers.
FR21980E (en) * 1919-12-09 1921-04-21 Belge D Outil Pneumatique Atel Automatic shut-off for compressed air tools, especially for pneumatic peak hammers
FR730222A (en) * 1931-01-21 1932-08-09 Distribution mechanism for pneumatic hammers
US2128742A (en) * 1937-04-09 1938-08-30 Ingersoll Rand Co Muffling device
GB526285A (en) * 1939-03-11 1940-09-13 Ingersoll Rand Co Improvements in or relating to muffling devices
FR1103576A (en) * 1954-04-23 1955-11-04 Mechanical jackhammer, riveter or the like, hand-held
FR1108162A (en) * 1954-02-02 1956-01-10 Hauhinco Maschf Pneumatic impact tool, including hammer pick
FR1450209A (en) * 1965-10-15 1966-05-06 Atlas Copco Ab Sophisticated silencer for machines and tools working by percussion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191220091A (en) * 1912-09-03 1913-09-03 George Lawson Robertson Improvements in Pneumatic Hammers.
FR21980E (en) * 1919-12-09 1921-04-21 Belge D Outil Pneumatique Atel Automatic shut-off for compressed air tools, especially for pneumatic peak hammers
FR730222A (en) * 1931-01-21 1932-08-09 Distribution mechanism for pneumatic hammers
US2128742A (en) * 1937-04-09 1938-08-30 Ingersoll Rand Co Muffling device
GB526285A (en) * 1939-03-11 1940-09-13 Ingersoll Rand Co Improvements in or relating to muffling devices
FR1108162A (en) * 1954-02-02 1956-01-10 Hauhinco Maschf Pneumatic impact tool, including hammer pick
FR1103576A (en) * 1954-04-23 1955-11-04 Mechanical jackhammer, riveter or the like, hand-held
FR1450209A (en) * 1965-10-15 1966-05-06 Atlas Copco Ab Sophisticated silencer for machines and tools working by percussion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398581A1 (en) * 1977-07-29 1979-02-23 Maco Meudon Sa Valve for pneumatic drill - has inset trigger displacing piston rod which pivots conical plug located in air feed pipe
DE3007577A1 (en) * 1979-02-28 1981-02-05 Compair Constr Mining Ltd PISTON-CYLINDER DEVICE OPERATING WITH GAS PRESSURE
EP0166681A1 (en) * 1984-05-29 1986-01-02 SIG Schweizerische Industrie-Gesellschaft Pneumatically driven hammer
US4673042A (en) * 1984-05-29 1987-06-16 Sig Schweizerische Industrie-Gesellschaft Pneumatic hammer

Also Published As

Publication number Publication date
FR2385496B1 (en) 1982-12-03
CH605044A5 (en) 1978-09-29

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse