WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B66D CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS (winding or unwinding ropes or cables for feeding or storage purposes B65H; rope or cable winding or unwinding mechanisms for lifts B66B)

  NOTE - This subclass covers:
rope, cable or chain winding or unwinding mechanisms for moving all loads
except lift cages, e.g. winches for dredges;
braking or detent devices characterised by their application for retarding or
preventing rotary movement of a winding drum or barrel

  WARNING - The following IPC groups are not used in the internal ECLA classification scheme.

  Subject matter covered by these groups is classified in the following ECLA groups:
   B66D 1/395 covered by B66D 1/36, B66D 1/50

B66D 1/00 Rope, cable, or chain winding mechanisms; Capstans (portable or mobile lifting or hauling appliances B66D 3/00)

B66D 1/005 ・{Attaching winches to vehicle wheels}

B66D 1/02 ・Driving gear

B66D 1/04 ・・manually operated

B66D 1/06 ・・・Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads

B66D 1/08 ・・incorporating fluid motors

B66D 1/10 ・・・Steam driving gear

B66D 1/12 ・・incorporating electric motors

B66D 1/14 ・・Power transmissions between power sources and drums or barrels {including brakes, one-way brakes, one-way clutches, clutches activated alternately with brakes, fixed ratio gearing unless otherwise provided for in B66D 1/16 to B66D 1/24}

B66D 1/16 ・・・the drums or barrels being freely rotatable {e.g. having a clutch activated independently of a brake (B66D 1/20, B66D 1/22, B66D 1/24 take precedence; clutches activated alternately with brakes B66D 1/14, slip couplings B66D 1/14)}

B66D 1/18 ・・・・and the power being transmitted from a continuously operating and irreversible prime mover {i.e. an internal combustion engine e.g. on a motor vehicle or a portable winch}

B66D 1/20 ・・・Chain, belt, or friction drives, e.g. incorporating sheaves {of fixed or variable ratio}

B66D 1/22 ・・・Planetary or differential gearings (for actuating grab buckets B66D 1/70){i.e. with planet gears having movable axes of rotation}

B66D 1/225 ・・・・{variable ratio or reversing gearing (fixed ratio gearing B66D 1/22)}

B66D 1/24 ・・・for varying speed or reversing direction of rotation of drums or barrels {i.e. variable ratio or reversing gearing (B66D 1/225 takes precedence)}

B66D 1/26 ・having several drums or barrels

B66D 1/28 ・Other constructional details

B66D 1/30 ・・Rope, cable, or chain drums or barrels

B66D 1/34 ・・・Attachment of ropes or cables to drums or barrels

B66D 1/36 ・・Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains

B66D 1/365 ・・・{by means of pivotably mounted drums or barrels}

B66D 1/38 ・・・by means of guides movable relative to drum or barrel

B66D 1/39 ・・・by means of axially-movable drums or barrels {(pivotably mounted drums or barrel B66D 1/365)}

B66D 1/40 ・・Control devices

B66D 1/42 ・・・non-automatic

B66D 1/44 ・・・・pneumatic of hydraulic

B66D 1/46 ・・・・electric

B66D 1/48 ・・・automatic

B66D 1/485 ・・・・{electrical}

B66D 1/50 ・・・・for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control

B66D 1/505 ・・・・・{electrical}

B66D 1/52 ・・・・for varying rope or cable tension, e.g. when recovering craft from water

B66D 1/525 ・・・・・{electrical}

B66D 1/54 ・Safety gear

B66D 1/56 ・・Adaptations of limit switches

B66D 1/58 ・・responsive to excess of load

B66D 1/60 ・adapted for special purposes

B66D 1/605 ・・{scaffolding winshes (B66D 1/74 takes precedence)}

B66D 1/62 ・・for actuating grab buckets (electrical control in cranes B66C 13/32)

B66D 1/64 ・・・by means of a single rope or chain

B66D 1/66 ・・・driven by a single motor

B66D 1/68 ・・・driven by two motors

B66D 1/70 ・・・driven through planetary or differential gearings

B66D 1/72 ・・Anchor-chain sprockets; Anchor capstans

B66D 1/74 ・・Capstans

B66D 1/7405 ・・・{having two or more drums providing tractive force}

B66D 1/741 ・・・・{and having rope storing means}

B66D 1/7415 ・・・{Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees}

B66D 1/7421 ・・・{having a vertical rotation axis}

B66D 1/7426 ・・・・{driven by motor only}

B66D 1/7431 ・・・・{driven manually only}

B66D 1/7436 ・・・・{drivable by both motor and manually}

B66D 1/7442 ・・・{having a horizontal rotation axis}

B66D 1/7447 ・・・・{driven by motor only}

B66D 1/7452 ・・・・{driven manually only}

B66D 1/7457 ・・・・{drivable by both motor and manually}

B66D 1/7463 ・・・{Accessories}

B66D 1/7468 ・・・・{Handles}

B66D 1/7473 ・・・・・{with locking means}

B66D 1/7478 ・・・・・{Powered handles}

B66D 1/7484 ・・・{Details concerning gearing arrangements, e.g. multi-speed}

B66D 1/7489 ・・・{having a particular use, e.g. rope ascenders}

B66D 1/7494 ・・・{Self-tailing capstans}

B66D 1/76 ・・・having auxiliary drums or barrels for storing the ropes or cables

B66D 1/78 ・・・for shunting, e.g. in marshalling yards

B66D 1/80 ・・for scrapers

B66D 1/82 ・・for slewing and hoisting by means of derricks

B66D 3/00 Portable or mobile lifting or hauling appliances

B66D 3/003 ・{using two or more cooperating endless chains}

B66D 3/006 ・{Power actuated devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction (B66D 3/003 takes precedence)}

B66D 3/02 ・Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction (B66D 3/04, B66D 3/12 take precedence)

B66D 3/04 ・Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage (sheaves F16H 55/00)

B66D 3/043 ・・{Block and tackle system with variable number of cable parts}

B66D 3/046 ・・{Openable pulley blocks}

B66D 3/06 ・・with more than one pulley

B66D 3/08 ・・・Arrangements of sheaves

B66D 3/10 ・・・Applications of braking or detent devices

B66D 3/12 ・Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable

B66D 3/14 ・・lever operated

B66D 3/16 ・・operated by an endless chain passing over a pulley or a sprocket

B66D 3/18 ・Power-operated hoists

B66D 3/20 ・・with driving motor, e.g. electric motor, and drum or barrel contained in a common housing

B66D 3/22 ・・・with variable-speed gearings between driving motor and drum or barrel

B66D 3/24 ・・Applications of limit switches

B66D 3/26 ・・Other details, e.g. housings

B66D 5/00 Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads (for pulley blocks B66D 3/10)

B66D 5/02 ・Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes

B66D 5/023 ・・{Cooling of brakes (in general F16D)}

B66D 5/026 ・・{Fluid-resistance brakes}

B66D 5/04 ・・actuated by centrifugal force

B66D 5/06 ・・with radial effect (B66D 5/20 takes precedence)

B66D 5/08 ・・・embodying blocks or shoes

B66D 5/10 ・・・embodying bands

B66D 5/12 ・・with axial effect (B66D 5/22 takes precedence)

B66D 5/14 ・・・embodying discs

B66D 5/16 ・・for action on ropes or cables

B66D 5/18 ・・for generating braking forces which are proportional to the loads suspended; Load-actuated brakes

B66D 5/20 ・・・with radial effect

B66D 5/22 ・・・with axial effect

B66D 5/24 ・・Operating devices

B66D 5/26 ・・・pneumatic or hydraulic

B66D 5/28 ・・・・specially adapted for winding gear, e.g. in mining hoists

B66D 5/30 ・・・electrical

B66D 5/32 ・Detent devices

B66D 5/34 ・・having latches

B66D 2700/00 Capstans, winches or hoists

B66D 2700/01 ・Winches, capstans or pivots

B66D 2700/0108 ・・with devices for paying out or automatically tightening the cable

B66D 2700/0116 ・・Manually or spring operated winches

B66D 2700/0125 ・・Motor operated winches

B66D 2700/0133 ・・・Fluid actuated

B66D 2700/0141 ・・・Electrically actuated

B66D 2700/015 ・・・Actuated by chain, belt or by friction

B66D 2700/0158 ・・・Hydraulically controlled couplings or gearings

B66D 2700/0166 ・・・Winches with multiple drums or with drums with multiple parts of different diameter

B66D 2700/0175 ・・・・with adjacent drums mounted on a single shaft with a common coupling member

B66D 2700/0183 ・・Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum

B66D 2700/0191 ・・・Cable guiding during winding or paying out

B66D 2700/02 ・Hoists or accessories for hoists

B66D 2700/021 ・・Hauling devices

B66D 2700/023 ・・Hoists

B66D 2700/025 ・・・motor operated

B66D 2700/026 ・・Pulleys, sheaves, pulley blocks or their mounting

B66D 2700/028 ・・・Pulley blocks with multiple sheaves

B66D 2700/03 ・Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure

B66D 2700/035 ・・Fluid operated braking devices

B66D 2700/05 ・Brakes with mechanisms with latches for hoists or similar devices

B66D 2700/07 ・Brakes with axial thrust for winches, hoists or similar devices

--- Edited by Muguruma Professional Engineer Office(C), 2013 ---