WO1993021097A1 - Safety device for person and goods lift and turnstick for shifting or release of the liftcage - Google Patents
Safety device for person and goods lift and turnstick for shifting or release of the liftcage Download PDFInfo
- Publication number
- WO1993021097A1 WO1993021097A1 PCT/NO1993/000060 NO9300060W WO9321097A1 WO 1993021097 A1 WO1993021097 A1 WO 1993021097A1 NO 9300060 W NO9300060 W NO 9300060W WO 9321097 A1 WO9321097 A1 WO 9321097A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elevator
- turn handle
- holder
- safety device
- switch
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
Definitions
- the present invention relates to a safety device for a passenger/freight elevator of the shaft elevator type, where the elevator turning wheel connected to the elevator drive system comprising an electric motor is provided with a peripheral head or peripheral axial flange for engagement with a turn handle for rotation of the turning wheel to move the elevator car in the event of a power outage, or in case the car is wedged or jammed in the elevator shaft, or when the elevator is being serviced.
- a turn handle comprising an arm having a head formed for engagement with the peripheral edge of the turning wheel, which edge comprises a peripheral axially extending flange projecting out to both sides of the turning wheel and adapted for engagement with the turn handle head, having means for positioning it against, respectively, the inside and outside of the flange.
- On exertion of a force on the shaft of the turn handle said force is transferred via the flange of the elevator wheel and rotates the wheel, whereby when electric current is disconnected from the elevator drive system, the elevator may be moved up or down, or dislodged from a wedged position.
- a turn handle of the type mentioned above is known from Norwegian Design Application No. 63723.
- the elevator drive system must be disconnected from the electric current supply in order to prevent the possibility of a person's inadvertently starting the elevator by pushing the elevator control buttons, and thereby causing accidents because the unauthorized person presses on the control buttons and causes the elevator car to move.
- the purpose of the present invention is to provide a safety device for passenger/freight elevators of the type mentioned in the introduction, whereby said possible starting of the elevator during servicing or other operations in connection with the elevator is prevented. According to the present invention, this is achieved by means of the characterizing features disclosed in the characterizing clause of the following independent claim 1 and in the subsequent dependent claims. The invention will be explained further in the following with reference to the drawings, which illustrate an example of the construction of a turn handle and a holder therefor, where the holder and turn handle are provided with cooperative actuating means for actuation of the connecting position of the switch.
- Figures 1 and 2 show a perspective view of the holder from the front and the rear, respectively, with Figure 1 also indicating the turn handle, drawn with a broken line, in secured position on the holder,
- Figure 3a,b shows a rear view and side view, respectively, of the turn handle with its projecting actuating means
- Figure 4a,b shows a front view and side view, respectively, of the turn handle without an actuating means.
- Figure 1 shows a holding plate 2 provided with legs 2b having through-going holes 2c for attachment to a wall in the elevator housing by means of screws or bolts.
- the holder 2 is provided with two spaced apart anchor bolts 8 at its center axis and with wing nuts 8a for the attachment of a turn handle 1, the shaft of which is provided with two holes lc for engagement with said anchor bolts 8.
- turn handle 1 is indicated with broken lines, attached to the holder by means of said anchor bolts 8 and wing nuts 8a.
- the indicated turn handle 1 is more clearly illustrated in Figure 3 and comprises a shaft la and a head lb at one end of the shaft.
- Head lb for engagement with a flange or bead on the elevator turning wheel (not shown) is provided with a fixed jaw 6 — preferably circular in shape — disposed transversely to the shaft la, and an elongated jaw 7 spaced therefrom and closer to the shaft, pivotable about a bolt 7a.
- head lb of turn handle 1 When in use, head lb of turn handle 1 will be positioned with jaws 6,7 on each side of the axial flange of the turning wheel, with the fixed jaw 6 on the inside of the flange.
- the pivotable jaw 7 shown in the drawing provided with a friction pad or lining 7b on its contact surface facing the turning wheel flange — will come into contact therewith, and the circular surface of the fixed jaw 6 will come into contact with the interior of the flange so that the turn handle head lb engages the turning wheel flange and causes the turning wheel to rotate on application of said moment of force to the shaft la of turn handle 1.
- turn handle head lb is provided with a projection 4 extending in the opposite direction of the first jaw b on the opposite side of said head.
- This projection constitutes an actuating means 4 adapted for cooperation with a second actuating means 5 which, in the exemplary embodiment shown in Figures 1 and 2, is constituted of an operating means of a switch 3, which, in form of an opening, alignes with an opening 2a in holder 2.
- a second actuating means 5 which, in the exemplary embodiment shown in Figures 1 and 2, is constituted of an operating means of a switch 3, which, in form of an opening, alignes with an opening 2a in holder 2.
- the electrical contacts of the switch 3 will be connected, thereby connecting the electric current to the elevator drive 5 system.
- said actuating means 4 is drawn out of the switch operating means which forms actuating means 5, whereby the contacts of switch 3 are disconnected and the electric current to the elevator drive system is interrupted.
- projection 4 on turn handle 1 may be designed with a particular cross profile complementary to the cross profile of an insertion opening 5a in the actuating means 5 that constitutes the operating means 3a for switch 3. This effectively prevents the possibility of using a random turn
- actuating means 4 on the turn handle, and actuating means 5 for the switch 3 may of course be designed
- the actual turn handle 1 may constitute the first actuating means 4 for engagement with the second actuating means 5 in form of, for example, a push button provided on holder 2, which button is depressed on positioning of the turn handle 1 in holder 2.
- the second actuating means 5 may constitute a pivotable arm connected to a switch, so that said arm, when in the position of actuation effected by placement of the handle in holder 2, maintains the switch connected, and on removal of turn handle 1 from holder 2, the arm pivots back and disconnects switch 3.
- Figure 4 shows the turn handle without actuating means 4, where the turn handle 1 itself can constitute the actuating means 4, or a particular actuating means 4 may be mounted on the turn handle in accordance with the individual elevator system for which the turn handle is to be provided.
- a locking means therefor e.g., in the form of a padlock that engages with aligned holes at the lower end of the turn handle and in the holder 2. In this way unauthorized persons are prevented from detaching the turn handle 1 and employing it on the turning wheel.
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Emergency Lowering Means (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93908181A EP0666827B1 (en) | 1992-04-10 | 1993-04-07 | Safety device for person and goods lift and turnstick for shifting or release of the liftcage |
DE0666827T DE666827T1 (en) | 1992-04-10 | 1993-04-07 | SAFETY DEVICE FOR PERSONS AND MATERIAL ELEVATOR AND SWIVEL LEVER FOR MOVING OR UNLOCKING THE ELEVATOR CAB. |
JP5518203A JPH07506078A (en) | 1992-04-10 | 1993-04-07 | Passenger and freight elevator safety devices and rotating rods for moving or releasing elevator cages |
DE69327061T DE69327061T2 (en) | 1992-04-10 | 1993-04-07 | SAFETY DEVICE FOR PERSONS AND MATERIAL ELEVATOR AND SWIVEL LEVER FOR MOVING OR UNLOCKING THE ELEVATOR CAB |
US08/307,699 US5511633A (en) | 1992-04-10 | 1993-04-07 | Safety device for person and goods lift and turnstick for shifting or release of the liftcage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO921426A NO176563C (en) | 1992-04-10 | 1992-04-10 | Safety device for passenger / goods elevator |
NO921426 | 1992-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993021097A1 true WO1993021097A1 (en) | 1993-10-28 |
Family
ID=19895070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1993/000060 WO1993021097A1 (en) | 1992-04-10 | 1993-04-07 | Safety device for person and goods lift and turnstick for shifting or release of the liftcage |
Country Status (8)
Country | Link |
---|---|
US (1) | US5511633A (en) |
EP (1) | EP0666827B1 (en) |
JP (1) | JPH07506078A (en) |
AT (1) | ATE186707T1 (en) |
AU (1) | AU3909593A (en) |
DE (2) | DE666827T1 (en) |
NO (1) | NO176563C (en) |
WO (1) | WO1993021097A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000018676A1 (en) * | 1998-09-28 | 2000-04-06 | Inventio Ag | Device for operating elevators in a special mode |
CN102381606A (en) * | 2011-10-31 | 2012-03-21 | 周正元 | Manual lifting mechanical controller |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050092555A1 (en) * | 2003-11-04 | 2005-05-05 | Richard Lauch | Self locking elevator brake |
SE530278C2 (en) * | 2005-10-21 | 2008-04-15 | Alimak Ab | Securing device for an elevator car included in an elevator |
CN101830408B (en) * | 2010-05-27 | 2012-06-13 | 西安航天动力机械厂 | Chain breaking safety protective device for high-altitude lifter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3769473A (en) * | 1972-11-21 | 1973-10-30 | Mc Graw Edison Co | Power tool safety lock device for manual switch with switch actuator interlock structure defeatedly released by chuck key |
GB2179916A (en) * | 1985-08-16 | 1987-03-18 | Mitsubishi Electric Corp | Elevator system |
US4904829A (en) * | 1987-03-27 | 1990-02-27 | La Telemecanique Electrique | Actuator-controlled keylock switch |
DE4037564A1 (en) * | 1989-11-27 | 1991-05-29 | Telemecanique Electrique | Safety switch operated by key-actuated rotary cam - has keyhole entrance guarded by angled faces of two plungers biased by springs upward and downward |
-
1992
- 1992-04-10 NO NO921426A patent/NO176563C/en not_active IP Right Cessation
-
1993
- 1993-04-07 AU AU39095/93A patent/AU3909593A/en not_active Abandoned
- 1993-04-07 DE DE0666827T patent/DE666827T1/en active Pending
- 1993-04-07 AT AT93908181T patent/ATE186707T1/en not_active IP Right Cessation
- 1993-04-07 DE DE69327061T patent/DE69327061T2/en not_active Expired - Fee Related
- 1993-04-07 WO PCT/NO1993/000060 patent/WO1993021097A1/en active IP Right Grant
- 1993-04-07 JP JP5518203A patent/JPH07506078A/en active Pending
- 1993-04-07 US US08/307,699 patent/US5511633A/en not_active Expired - Fee Related
- 1993-04-07 EP EP93908181A patent/EP0666827B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3769473A (en) * | 1972-11-21 | 1973-10-30 | Mc Graw Edison Co | Power tool safety lock device for manual switch with switch actuator interlock structure defeatedly released by chuck key |
GB2179916A (en) * | 1985-08-16 | 1987-03-18 | Mitsubishi Electric Corp | Elevator system |
US4904829A (en) * | 1987-03-27 | 1990-02-27 | La Telemecanique Electrique | Actuator-controlled keylock switch |
DE4037564A1 (en) * | 1989-11-27 | 1991-05-29 | Telemecanique Electrique | Safety switch operated by key-actuated rotary cam - has keyhole entrance guarded by angled faces of two plungers biased by springs upward and downward |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000018676A1 (en) * | 1998-09-28 | 2000-04-06 | Inventio Ag | Device for operating elevators in a special mode |
AU765681B2 (en) * | 1998-09-28 | 2003-09-25 | Inventio Ag | Device for operating elevators in a special mode |
CN102381606A (en) * | 2011-10-31 | 2012-03-21 | 周正元 | Manual lifting mechanical controller |
Also Published As
Publication number | Publication date |
---|---|
EP0666827B1 (en) | 1999-11-17 |
NO176563C (en) | 1995-04-26 |
NO921426D0 (en) | 1992-04-10 |
EP0666827A1 (en) | 1995-08-16 |
DE69327061T2 (en) | 2000-04-20 |
US5511633A (en) | 1996-04-30 |
JPH07506078A (en) | 1995-07-06 |
ATE186707T1 (en) | 1999-12-15 |
NO921426L (en) | 1993-10-11 |
AU3909593A (en) | 1993-11-18 |
NO176563B (en) | 1995-01-16 |
DE69327061D1 (en) | 1999-12-23 |
DE666827T1 (en) | 1996-01-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3235026B2 (en) | Operating device for brake | |
KR20000011606A (en) | Locking apparatus for the door of a motor vehicle | |
US20050092149A1 (en) | Electric power tool with locking mechanism | |
EP0743246B2 (en) | Mechanism for arming, disarming and activating airplane emergency slide evacuation systems | |
US5511633A (en) | Safety device for person and goods lift and turnstick for shifting or release of the liftcage | |
IT9019538A1 (en) | SAFETY DEVICE FOR A LIFTING EQUIPMENT OR SIMILAR | |
CN104252980B (en) | Disconnecting switch fuse group and safety interlock thereof | |
KR100434018B1 (en) | Apparatus for fixing a wheelchair | |
US4258831A (en) | Brake mechanism for a hand operated lift truck | |
US20020020264A1 (en) | Electric power tool with locking mechanism | |
JPS6432948A (en) | Burglary preventing device | |
JP4291457B2 (en) | Brake release device for elevator hoisting machine | |
WO1990001999A1 (en) | Anti-theft device | |
CN106740926B (en) | A kind of safety insulating device for rail transit train | |
JP4129358B2 (en) | Driving force transmission mechanism of motor-driven electric lock | |
JP2507517Y2 (en) | Reverse rotation prevention device for rotating shaft | |
US2530974A (en) | Safety handle for controllers | |
US20050092555A1 (en) | Self locking elevator brake | |
JP3865140B2 (en) | Wheel lock device | |
KR200144254Y1 (en) | Parking brake lever locking device of vehicle | |
JPH0813543B2 (en) | Braking device for printing machine main drive motor | |
KR200251538Y1 (en) | Automatic locking system of parking brake | |
JPH0126995B2 (en) | ||
KR200250584Y1 (en) | Ropes brake system for Elevator | |
JPH0540240Y2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR CA CH CZ DE DK ES FI GB HU JP KP MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) |
Free format text: PL |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 08307699 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1993908181 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 1993908181 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWG | Wipo information: grant in national office |
Ref document number: 1993908181 Country of ref document: EP |