FR2452637A1 - Sprung safety lock for hand crank - disengages under input torque due to separation of axle shaft sections as balls ride ramps under input rotation - Google Patents

Sprung safety lock for hand crank - disengages under input torque due to separation of axle shaft sections as balls ride ramps under input rotation

Info

Publication number
FR2452637A1
FR2452637A1 FR7907795A FR7907795A FR2452637A1 FR 2452637 A1 FR2452637 A1 FR 2452637A1 FR 7907795 A FR7907795 A FR 7907795A FR 7907795 A FR7907795 A FR 7907795A FR 2452637 A1 FR2452637 A1 FR 2452637A1
Authority
FR
France
Prior art keywords
under input
axle
sleeve
rotation
sprung
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
FR7907795A
Other languages
French (fr)
Other versions
FR2452637B1 (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.)
Mac Gregor International SA
Original Assignee
Mac Gregor International SA
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 Mac Gregor International SA filed Critical Mac Gregor International SA
Priority to FR7907795A priority Critical patent/FR2452637A1/en
Publication of FR2452637A1 publication Critical patent/FR2452637A1/en
Application granted granted Critical
Publication of FR2452637B1 publication Critical patent/FR2452637B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
    • F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means

Abstract

The automatic recoil sprung (7) disc brake is used on a crank handle (12) operated pulley wheel, to lock the wheel axle (2) against rotation unless an input torque is applied to the handle. It has balls (27) on ramps to promote axial brake lining (5,6) divergence during an initial free rotation of an input sleeve (10). This houses a ball bearing (18) mounted trailing end of the axle, abutting a fixed housing (H) for the axle and a sprung (7) flanged (17) sleeve (3), accommodating the movable brake linings (6). Four uniform half spherical flange (17) sockets (14) locate a ball (27). The opposite radial sleeve (10) zones have tangential 'V' notches. An axial (2) key in an oversize sleeve (10) bore groove allows some 15 degrees handle (12) rotation before the drive is taken up. During this rotation the balls (27) climb the ramped sides of the 'V' notches, compressing the spring (7) causing the brake linings (5,6) to move apart and, allowing the axle (2) to rotate.
FR7907795A 1979-03-28 1979-03-28 Sprung safety lock for hand crank - disengages under input torque due to separation of axle shaft sections as balls ride ramps under input rotation Granted FR2452637A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7907795A FR2452637A1 (en) 1979-03-28 1979-03-28 Sprung safety lock for hand crank - disengages under input torque due to separation of axle shaft sections as balls ride ramps under input rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7907795A FR2452637A1 (en) 1979-03-28 1979-03-28 Sprung safety lock for hand crank - disengages under input torque due to separation of axle shaft sections as balls ride ramps under input rotation

Publications (2)

Publication Number Publication Date
FR2452637A1 true FR2452637A1 (en) 1980-10-24
FR2452637B1 FR2452637B1 (en) 1982-09-03

Family

ID=9223661

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907795A Granted FR2452637A1 (en) 1979-03-28 1979-03-28 Sprung safety lock for hand crank - disengages under input torque due to separation of axle shaft sections as balls ride ramps under input rotation

Country Status (1)

Country Link
FR (1) FR2452637A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330133A2 (en) * 1988-02-25 1989-08-30 Rigert Maschinenbau AG Device transmitting a torque, and lift installation with such a device
FR2641348A1 (en) * 1988-12-30 1990-07-06 Lucas Air Equipement Manually controlled shaft and disc-brake assembly
FR2720806A1 (en) * 1994-06-03 1995-12-08 Leroy Somer Moteurs Motors with rotating shaft braking device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU17213A1 (en) * 1927-02-10 1930-09-30 Я.П. Беркман The method of producing mercuric chloride
FR925374A (en) * 1946-04-10 1947-09-02 Mechanical braking device and automatic brake release for any rotary motion transmission
FR55119E (en) * 1946-12-10 1951-06-06 Mechanical braking device and automatic brake release for any rotary motion transmission
DE909274C (en) * 1951-06-29 1954-04-15 Kurt Henze Automatically applied cone brake when torque fails
US2783861A (en) * 1954-11-29 1957-03-05 Cleveland Pneumatic Tool Co Drive-released brake
US3108669A (en) * 1962-01-12 1963-10-29 Emerson Electric Mfg Co Automatic braking mechanism
FR2192663A5 (en) * 1972-07-17 1974-02-08 Tractel Sa
FR2194265A5 (en) * 1972-07-26 1974-02-22 Marche Roche Ets
US3844387A (en) * 1973-03-19 1974-10-29 Yamaai Seisakusho Co Ltd Braking device for a driven shaft
FR2322280A1 (en) * 1975-08-23 1977-03-25 Shimadzu Corp HYDRAULIC MOTOR
US4118013A (en) * 1977-03-14 1978-10-03 Paccar Of Canada, Ltd. Self-energizing winch brake and drive

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU17213A1 (en) * 1927-02-10 1930-09-30 Я.П. Беркман The method of producing mercuric chloride
FR925374A (en) * 1946-04-10 1947-09-02 Mechanical braking device and automatic brake release for any rotary motion transmission
FR55119E (en) * 1946-12-10 1951-06-06 Mechanical braking device and automatic brake release for any rotary motion transmission
DE909274C (en) * 1951-06-29 1954-04-15 Kurt Henze Automatically applied cone brake when torque fails
US2783861A (en) * 1954-11-29 1957-03-05 Cleveland Pneumatic Tool Co Drive-released brake
US3108669A (en) * 1962-01-12 1963-10-29 Emerson Electric Mfg Co Automatic braking mechanism
FR2192663A5 (en) * 1972-07-17 1974-02-08 Tractel Sa
FR2194265A5 (en) * 1972-07-26 1974-02-22 Marche Roche Ets
US3844387A (en) * 1973-03-19 1974-10-29 Yamaai Seisakusho Co Ltd Braking device for a driven shaft
FR2322280A1 (en) * 1975-08-23 1977-03-25 Shimadzu Corp HYDRAULIC MOTOR
US4118013A (en) * 1977-03-14 1978-10-03 Paccar Of Canada, Ltd. Self-energizing winch brake and drive

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330133A2 (en) * 1988-02-25 1989-08-30 Rigert Maschinenbau AG Device transmitting a torque, and lift installation with such a device
EP0330133A3 (en) * 1988-02-25 1990-08-22 Rigert Maschinenbau AG Device transmitting a torque, and lift installation with such a device
FR2641348A1 (en) * 1988-12-30 1990-07-06 Lucas Air Equipement Manually controlled shaft and disc-brake assembly
FR2720806A1 (en) * 1994-06-03 1995-12-08 Leroy Somer Moteurs Motors with rotating shaft braking device

Also Published As

Publication number Publication date
FR2452637B1 (en) 1982-09-03

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Legal Events

Date Code Title Description
ST Notification of lapse