EP0077182A3 - Pneumatically driven apparatus - Google Patents

Pneumatically driven apparatus Download PDF

Info

Publication number
EP0077182A3
EP0077182A3 EP82305341A EP82305341A EP0077182A3 EP 0077182 A3 EP0077182 A3 EP 0077182A3 EP 82305341 A EP82305341 A EP 82305341A EP 82305341 A EP82305341 A EP 82305341A EP 0077182 A3 EP0077182 A3 EP 0077182A3
Authority
EP
European Patent Office
Prior art keywords
valve
operating member
motor
valve operating
drive shaft
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.)
Withdrawn
Application number
EP82305341A
Other languages
German (de)
French (fr)
Other versions
EP0077182A2 (en
Inventor
Richard Ernest Eckman
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of EP0077182A2 publication Critical patent/EP0077182A2/en
Publication of EP0077182A3 publication Critical patent/EP0077182A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A pneumatically driven tool includes a hollow housing (18) in which is located an air motor including a rotatable motor shaft (20) arranged to drive a tool such as a screwdriver, sock­ et wrench via a tool drive shaft (22). A torque-sensitive clutch (24) is located between the tool drive shaft (22) and the motor shaft (20) permitting the motor shaft (20) to move relative to the tool drive shaft (22) when a predetermined torque is en­ countered. A valve (14) located in the housing (18) between the motor and the air supply source controls the flow of pres­ surised air to the motor. The valve (14) is controlled by an elon­ gated valve operating member (54) having a first end (56) en­ gaging the valve and having a second end (58). A latch mem­ ber (62) is pivotally mounted on the tool drive shaft (22) and has a surface (60) thereon that engages the second end (58) of the valve operating member (54). A hole (76) formed in the latch member (62) is slzed to receive the end of the elongated valve operating member (54). Normally the hole (76) is not in alignment with the valve operating member (54) and, thus, the valve (14) is held in the open position. Upon relative rotation as previously mentioned, the latch member (62) is cammed to a position so that the hole (76) aligns with the valve operating member (54) permitting the valve (14) to close.
EP82305341A 1981-10-13 1982-10-07 Pneumatically driven apparatus Withdrawn EP0077182A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31000881A 1981-10-13 1981-10-13
US310008 1981-10-13

Publications (2)

Publication Number Publication Date
EP0077182A2 EP0077182A2 (en) 1983-04-20
EP0077182A3 true EP0077182A3 (en) 1984-07-11

Family

ID=23200601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82305341A Withdrawn EP0077182A3 (en) 1981-10-13 1982-10-07 Pneumatically driven apparatus

Country Status (3)

Country Link
EP (1) EP0077182A3 (en)
JP (1) JPS5877459A (en)
AR (1) AR228918A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101269484B (en) * 2008-04-24 2010-06-09 吴逸民 Dynamic wrest fixing spanner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477521A (en) * 1967-10-05 1969-11-11 Aro Corp Automatic power tool
DE2409815A1 (en) * 1974-03-01 1975-09-11 Bosch Gmbh Robert POWER DRIVER WITH SHUT-OFF DEVICE
US4154308A (en) * 1977-10-25 1979-05-15 Dresser Industries, Inc. Low torque automatic screwdriver
GB2040768A (en) * 1979-01-17 1980-09-03 Dresser Ind Torque responsive shut-off apparatus for pneumatic driven tools

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477521A (en) * 1967-10-05 1969-11-11 Aro Corp Automatic power tool
DE2409815A1 (en) * 1974-03-01 1975-09-11 Bosch Gmbh Robert POWER DRIVER WITH SHUT-OFF DEVICE
US4154308A (en) * 1977-10-25 1979-05-15 Dresser Industries, Inc. Low torque automatic screwdriver
GB2040768A (en) * 1979-01-17 1980-09-03 Dresser Ind Torque responsive shut-off apparatus for pneumatic driven tools

Also Published As

Publication number Publication date
JPS5877459A (en) 1983-05-10
AR228918A1 (en) 1983-04-29
EP0077182A2 (en) 1983-04-20

Similar Documents

Publication Publication Date Title
US3616864A (en) Torque-controlled motor shutoff for power tool
US4462282A (en) Power tool with torque reaction bar
US3939924A (en) Power torque wrench
EP0420003A2 (en) Powered impact wrench
AU693253B2 (en) Tube nut wrench
AU3581189A (en) Device for driving a drilling and/or percussion tool
AU573150B2 (en) Adjustable motor operated screw driving device
US4576270A (en) Torque control and fluid shutoff mechanism for a fluid operated tool
US4064772A (en) Tubing wrench with air powered return
US3811513A (en) Portable pneumatic power tool
WO1999014017A3 (en) Powered-operated screwdriving device
US4338798A (en) Adjustable torque limiting apparatus
US4850753A (en) Positive feed device
US2969660A (en) Impact wrench control
EP0077182A3 (en) Pneumatically driven apparatus
US3242996A (en) Low torque screwdriver
US2700443A (en) Torque clutch
EP1170093A3 (en) Fastening tool
SE8901072L (en) ENGINE DRIVER SCREW
GB2106024A (en) Control for pneumatic tool eg a screwdriver
GB1297841A (en)
US4971156A (en) Multi-section controlled auxiliary fittings to be attached to a wrench
US5195406A (en) Power wrench
US4836349A (en) Clutch type tightening apparatus for allowing free adjustment of tightening force
US4546833A (en) Adjustable torque responsive control

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE FR GB IT LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850617

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ECKMAN, RICHARD ERNEST