ATE68162T1 - SAFETY DEVICE FOR THE ELECTRIC WINCH OF A CONSTRUCTION ELEVATOR. - Google Patents

SAFETY DEVICE FOR THE ELECTRIC WINCH OF A CONSTRUCTION ELEVATOR.

Info

Publication number
ATE68162T1
ATE68162T1 AT88104131T AT88104131T ATE68162T1 AT E68162 T1 ATE68162 T1 AT E68162T1 AT 88104131 T AT88104131 T AT 88104131T AT 88104131 T AT88104131 T AT 88104131T AT E68162 T1 ATE68162 T1 AT E68162T1
Authority
AT
Austria
Prior art keywords
pivoting frame
rope
limit switch
switch
power supply
Prior art date
Application number
AT88104131T
Other languages
German (de)
Inventor
Ulrich Graf
Original Assignee
Dechentreiter Maschf Josef
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 Dechentreiter Maschf Josef filed Critical Dechentreiter Maschf Josef
Application granted granted Critical
Publication of ATE68162T1 publication Critical patent/ATE68162T1/en

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
    • B66D1/54—Safety gear
    • B66D1/56—Adaptations of limit switches

Abstract

The safety device has an essentially rectangular pivoting frame (3) which is arranged below the rope drum (1) and can be pivoted on one side about a pivot axis (4) parallel to the rope-drum axis (A) and through which the rope (17) is passed. Rigidly connected to the pivoting frame (3) is an actuating member (9) which, as a function of the position of the pivoting frame (3), acts on a direction-sensitive limit switch (12) in such a way that, in the operating position of the pivoting frame (3), the limit switch (12) releases the power supply to the winch motor for both directions of rotation and, in the raised position of the pivoting frame (3), in a second switch position, releases the power supply only for the downward direction of rotation. On its side remote from the pivot axis (4), the pivoting frame (3) has a roller (6) which constantly bears against the rope (17) and can be rotated about a rotational axis (A1) parallel to the pivot axis (4). The pivoting frame (3) can be pivoted freely downwards. The limit switch (12) is provided with a third switch position into which it is moved when the pivoting frame (3) pivots downwards, the limit switch (12) in its third switch position releasing the power supply only for the upward direction of rotation of the winch motor.
AT88104131T 1987-04-23 1988-03-16 SAFETY DEVICE FOR THE ELECTRIC WINCH OF A CONSTRUCTION ELEVATOR. ATE68162T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3713621A DE3713621C1 (en) 1987-04-23 1987-04-23 Safety device for the electric cable winch of a construction elevator
EP88104131A EP0287807B1 (en) 1987-04-23 1988-03-16 Safety device for the electric winch of a building site lift

Publications (1)

Publication Number Publication Date
ATE68162T1 true ATE68162T1 (en) 1991-10-15

Family

ID=6326153

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88104131T ATE68162T1 (en) 1987-04-23 1988-03-16 SAFETY DEVICE FOR THE ELECTRIC WINCH OF A CONSTRUCTION ELEVATOR.

Country Status (4)

Country Link
EP (1) EP0287807B1 (en)
AT (1) ATE68162T1 (en)
DE (1) DE3713621C1 (en)
ES (1) ES2025719T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298839B (en) * 1995-03-14 1998-10-21 Imer Int Spa Safety apparatus for electrically-operated lifting apparatus
FR2740764B1 (en) * 1995-11-08 1997-12-26 Huchez & Cie IMPROVEMENT IN LIFTING CAPACITIES INCLUDING A SAFETY CONTACTOR AVAILABLE IN THE VICINITY OF THE RETURN PULLEY
FR2780048A1 (en) * 1998-06-23 1999-12-24 Patric Michel Travel limiter for service elevator cable
DE10236164A1 (en) * 2002-08-07 2004-02-19 Siemens Ag Cable failure detection device for wire-suspended devices or instruments e.g. telescopes, has a sprung lever that is held against the wire in normal operating conditions, so that if the cable fails it pivots, activating a drive stop switch
DE102013013284A1 (en) * 2013-08-08 2015-02-12 Hörmann KG Brockhagen gate
CN111776969A (en) * 2020-07-29 2020-10-16 宝鸡巨菱钻采设备有限责任公司 Manned carrying electric winch for oil drilling machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1848972A (en) * 1931-03-19 1932-03-08 Gifford Wood Co Slack cable switch
US2365141A (en) * 1942-06-06 1944-12-12 American Car & Foundry Co Power-operated hoist
US2530766A (en) * 1948-02-14 1950-11-21 Clarence W Halderman Traveling block limit control
GB772959A (en) * 1954-06-22 1957-04-17 King Ltd Geo W Improvements in or relating to hoists
GB832367A (en) * 1956-12-10 1960-04-06 British Thomson Houston Co Ltd Improvements relating to winding and haulage equipment
DE1170126B (en) * 1959-07-02 1964-05-14 Aloys Zeppenfeld Maschinenfabr Device to prevent rope slack in heavy loads
DE6926853U (en) * 1969-07-07 1970-01-15 Baumaschinen Kg LIMIT SWITCH OF AN ELECTRIC WINCH
FR2310305A1 (en) * 1975-05-05 1976-12-03 Roodt Guy Engine driven winch with automatic cut off - has switches operated by movement of baseplate and control lever
FR2350295A1 (en) * 1976-05-07 1977-12-02 Noirot Yves Twin-drum travelling hoist - has safety arm to stop motor at end of travel, cable guides and pressure arms
GB2143794B (en) * 1983-07-08 1986-05-29 Evans & Son J Lighting winch

Also Published As

Publication number Publication date
EP0287807B1 (en) 1991-10-09
EP0287807A1 (en) 1988-10-26
DE3713621C1 (en) 1988-08-18
ES2025719T3 (en) 1992-04-01

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee