FR2429638A1 - PNEUMATIC TOOL WITH ALTERNATIVE ACTION - Google Patents

PNEUMATIC TOOL WITH ALTERNATIVE ACTION

Info

Publication number
FR2429638A1
FR2429638A1 FR7916585A FR7916585A FR2429638A1 FR 2429638 A1 FR2429638 A1 FR 2429638A1 FR 7916585 A FR7916585 A FR 7916585A FR 7916585 A FR7916585 A FR 7916585A FR 2429638 A1 FR2429638 A1 FR 2429638A1
Authority
FR
France
Prior art keywords
cylinder
spring
tail
piston
spool
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.)
Pending
Application number
FR7916585A
Other languages
French (fr)
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.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
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 Rockwell International Corp filed Critical Rockwell International Corp
Publication of FR2429638A1 publication Critical patent/FR2429638A1/en
Pending legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/01—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends characterised by the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • B23D51/18—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows actuated by fluid or gas pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/001—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in the two directions is obtained by one double acting piston motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines

Abstract

L'outil 10 comporte un cylindre 12 dans lequel est monté un piston à double effet 32 dans la tige duquel est montée coulissante une queue 52 raccordée au tiroir 66 du distributeur, qui commande l'alimentation en air comprimé du cylindre, pour déplacer ce tiroir entre deux positions verrouillées dans un corps de distributeur 14 fixé au cylindre. La queue porte deux manchons à collerette 56, 58 entre lesquels est disposé un ressort 60. Les collerettes coopèrent avec des butées 40, 144 formées dans la tige de piston pour comprimer alternativement le ressort et provoquer un déplacement solidaire limité de la queue et du piston afin de dégager l'obturateur de chacune de ses positions verrouillées, l'obturateur étant alors rapidement déplacé à son autre position par l'énergie emmagasinée dans le ressort. Application, notamment, à une scie à métaux pneumatique.The tool 10 comprises a cylinder 12 in which is mounted a double-acting piston 32 in the rod of which is slidably mounted a tail 52 connected to the spool 66 of the distributor, which controls the supply of compressed air to the cylinder, to move this spool. between two locked positions in a distributor body 14 fixed to the cylinder. The tail carries two flanged sleeves 56, 58 between which is disposed a spring 60. The flanges cooperate with stops 40, 144 formed in the piston rod to alternately compress the spring and cause limited integral movement of the tail and the piston. in order to release the shutter from each of its locked positions, the shutter then being rapidly moved to its other position by the energy stored in the spring. Application, in particular, to a pneumatic hacksaw.

FR7916585A 1978-06-29 1979-06-27 PNEUMATIC TOOL WITH ALTERNATIVE ACTION Pending FR2429638A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92061978A 1978-06-29 1978-06-29

Publications (1)

Publication Number Publication Date
FR2429638A1 true FR2429638A1 (en) 1980-01-25

Family

ID=25444083

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7916585A Pending FR2429638A1 (en) 1978-06-29 1979-06-27 PNEUMATIC TOOL WITH ALTERNATIVE ACTION

Country Status (7)

Country Link
JP (1) JPS556100A (en)
CA (1) CA1111321A (en)
DE (1) DE2925844A1 (en)
FR (1) FR2429638A1 (en)
GB (1) GB2023742A (en)
NL (1) NL7905092A (en)
SE (1) SE7905434L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363739A (en) * 1993-10-12 1994-11-15 Graco Inc. Reduced icing low friction air valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039570A (en) * 1935-05-16 1936-05-05 Elliot I Thornton Pump
US2637304A (en) * 1950-01-05 1953-05-05 Stewart Warner Corp Valve mechanism for reciprocating fluid motors
US3699846A (en) * 1970-12-30 1972-10-24 Stewart Warner Corp Air motor
FR2358565A1 (en) * 1976-07-16 1978-02-10 Dieny Alfred Reciprocating engine with automatic valve operation - has sliding valve actuated by movement of main piston for reversing movement
US4079660A (en) * 1976-07-02 1978-03-21 Ives Frank E Safety valve for piston type pneumatic powered motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039570A (en) * 1935-05-16 1936-05-05 Elliot I Thornton Pump
US2637304A (en) * 1950-01-05 1953-05-05 Stewart Warner Corp Valve mechanism for reciprocating fluid motors
US3699846A (en) * 1970-12-30 1972-10-24 Stewart Warner Corp Air motor
US4079660A (en) * 1976-07-02 1978-03-21 Ives Frank E Safety valve for piston type pneumatic powered motor
FR2358565A1 (en) * 1976-07-16 1978-02-10 Dieny Alfred Reciprocating engine with automatic valve operation - has sliding valve actuated by movement of main piston for reversing movement

Also Published As

Publication number Publication date
GB2023742A (en) 1980-01-03
JPS556100A (en) 1980-01-17
NL7905092A (en) 1980-01-03
SE7905434L (en) 1979-12-30
CA1111321A (en) 1981-10-27
DE2925844A1 (en) 1980-01-17

Similar Documents

Publication Publication Date Title
ATE61853T1 (en) BRACKET CLAMP FOR A WORKING CYLINDER.
GB1281598A (en) Power operated work clamping device
FR2428756A1 (en) MOUNTING OF THE CYLINDER AND PISTON TYPE EQUIPPED WITH A PISTON TRAVEL OVERFLOW INDICATOR
EP0475171A3 (en) Hydraulically operated percussion mechanism
US3371583A (en) Material-handling device actuator
FR2429638A1 (en) PNEUMATIC TOOL WITH ALTERNATIVE ACTION
FR2405165A1 (en) HYDRAULIC CONTROL DEVICE FOR SWITCHING
DE3163647D1 (en) An overcentre tensioning device
JPS5524201A (en) Reciprocal apparatus
US2764046A (en) Initial adjusting mechanism for gripping members
FR2421690A1 (en) PORTABLE MANUAL DEVICE FOR BENDING TUBES, WITH REVERSIBLE BENDING ORGANS
GB1590787A (en) Stepping advancing device adapted for use with support tables
IT1072894B (en) DEVICE FOR THE ADJUSTMENT OF THE STROKE AND THE FORCE TRANSMITTED BY A HYDRAULIC CYLINDER OR OTHER LONGITUDINAL MOVEMENT ACTUATOR
JPS57167506A (en) Hydraulic pressure cylinder
BE856407A (en) TWO-PART PISTON ROD CYLINDER
SU129619A1 (en) Bar Feeder
SU363582A1 (en) DEVICE FOR THE MEASUREMENT OF LENGTH OF FORMULATIONS WHEN CONSTRUCTING CLOTHES
SU606738A1 (en) External ram drive of double-acting press
KR890005358Y1 (en) Holding and cutting apparatus to use cylinder
SU573671A1 (en) Device for feeding lubricant
SU598753A1 (en) Manipulator
GB1258059A (en)
SU420731A1 (en) DEVICE FOR CUTTING HEADS OF PILES
SU410740A1 (en)
SU241645A1 (en) Device for sawdust-free cross cutting of timber