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 rotationInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
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.
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)
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)
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 |
-
1979
- 1979-03-28 FR FR7907795A patent/FR2452637A1/en active Granted
Patent Citations (11)
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)
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 |