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GB1475132A - Torque transmission device - Google Patents

Torque transmission device

Info

Publication number
GB1475132A
GB1475132A GB3160374A GB3160374A GB1475132A GB 1475132 A GB1475132 A GB 1475132A GB 3160374 A GB3160374 A GB 3160374A GB 3160374 A GB3160374 A GB 3160374A GB 1475132 A GB1475132 A GB 1475132A
Authority
GB
United Kingdom
Prior art keywords
spring
load
torque
motor
transmission
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.)
Expired
Application number
GB3160374A
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.)
Microtecnica SRL
Original Assignee
Microtecnica SRL
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 Microtecnica SRL filed Critical Microtecnica SRL
Publication of GB1475132A publication Critical patent/GB1475132A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • F16B1/02—Means for securing elements of mechanisms after operation
    • F16B1/04—Means for securing elements of mechanisms after operation disengaged by movement of the actuating member of the element
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/20—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts for bolts or shafts without holes, grooves, or notches for locking members
    • 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
    • F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/02—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as a helical band or coil with more than one turn, with or without intensification of the braking force by the tension of the band or contracting member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Braking Arrangements (AREA)
  • Transmission Devices (AREA)

Abstract

1475132 Spring driven couplings; retarding apparatus MICROTECNICA SpA 17 July 1974 [1 Aug 1973] 31603/74 Heading B8B [Also in Division F2] A device for transmitting a torque from a motor (not shown) to a load 8, comprises a stationary drum 1 around which is wound a helical spring 2, a rotatable drive member 12 for connection to the motor and a rotatable load member 7 from which the load 8 is suspended by a rope 9. First and second transmission means 5, 6 are mounted on the end turns 3, 4 respectively of the spring 2, while first and second transmission members 13, 14 and 10, 11 are mounted on the drive member 12 and Toad member 7 respectively, and a friction member 15 is located in groove in each of the spring's end turns 3, 4 and acts between the bottom of the groove and the surface of drum 1. Because of the weight of the load 8 transmission member 11 co-operates with transmission means 6 of the spring 2 in a direction which causes tightening of the spring 2 about the drum 1, and because of the presence of the friction members 15 the turns of the spring 2 are all in engagement with the drum 1 as shown in Fig. 5 (not shown) so that the spring 2 exerts a braking action on the load member 7 and renders the latter stationary, as long as drive member-12 is inactive. If the motor (and) thus drive member 12) is rotated in the direction opposed to the torque applied by the load 8 the transmission member 14 is rotated anti-clockwise as viewed in Fig. 1 to engage transmission means 6 in a direction to slacken spring 2 so that the torque of the motor, reduced by the dragging torque of the spring, is transmitted to the transmission member 11 of load member 7 to rotate the latter. Conversely, if the motor is rotated in the direction of the torque applied by the load 8, the transmission member 13 is rotated clockwise and engages spring transmission means 5 in a direction to slacken spring 2, so that the braking torque of the spring 2 is made equal to the torque of load 8, and the latter is lowered without dragging the motor. As shown in Fig. 2, each friction member 15 is in the form of a corrugated blade. If the load 8 is slung from the load member 7 in the sense opposite to that shown in Fig. 1 the roles of the transmission members 13, 14 are the reverse of those set out above.
GB3160374A 1973-08-01 1974-07-17 Torque transmission device Expired GB1475132A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6932773A IT991930B (en) 1973-08-01 1973-08-01 PERFECTED DEVICE FOR THE BIDIRECTIONAL AND IRREVERSIBLE TRANSMISSION OF A MECHANICAL PAIR

Publications (1)

Publication Number Publication Date
GB1475132A true GB1475132A (en) 1977-06-01

Family

ID=11311878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3160374A Expired GB1475132A (en) 1973-08-01 1974-07-17 Torque transmission device

Country Status (4)

Country Link
DE (1) DE2351140C2 (en)
FR (1) FR2239622B1 (en)
GB (1) GB1475132A (en)
IT (1) IT991930B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006029087A1 (en) * 2004-09-07 2006-03-16 Reell Precision Manufacturing Corporation Wrap spring brake
CN111089153A (en) * 2018-10-22 2020-05-01 伊利诺斯工具制品有限公司 Transmission device
WO2021155359A1 (en) * 2020-01-31 2021-08-05 Reell Precision Manufacturing Corporation Damper controlled wrap spring clutch

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH625859A5 (en) * 1977-11-04 1981-10-15 Ortopedia Gmbh
JPS58191327A (en) * 1982-05-04 1983-11-08 Aisin Seiki Co Ltd Spring coupler device
US4605107A (en) * 1983-12-12 1986-08-12 Western Gear Corporation Slip clutch with slip detector and electrical disconnect
FR2568335A1 (en) * 1984-07-30 1986-01-31 Declic System Sarl Device for unidirectional locking in rotation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946417A (en) * 1957-12-16 1960-07-26 Curtiss Wright Corp Bidirectional no-back couplings
US3631951A (en) * 1970-01-02 1972-01-04 United Aircraft Corp Drive released coil brake with a pump brake

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006029087A1 (en) * 2004-09-07 2006-03-16 Reell Precision Manufacturing Corporation Wrap spring brake
US7080719B2 (en) 2004-09-07 2006-07-25 Reell Precision Manufacturing Corporation Wrap spring brake
CN111089153A (en) * 2018-10-22 2020-05-01 伊利诺斯工具制品有限公司 Transmission device
WO2021155359A1 (en) * 2020-01-31 2021-08-05 Reell Precision Manufacturing Corporation Damper controlled wrap spring clutch
US12031587B2 (en) 2020-01-31 2024-07-09 Reell Precision Manufacturing Corporation Damper controlled wrap spring clutch

Also Published As

Publication number Publication date
FR2239622A1 (en) 1975-02-28
FR2239622B1 (en) 1978-04-28
DE2351140A1 (en) 1975-02-13
IT991930B (en) 1975-08-30
DE2351140C2 (en) 1982-05-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee