Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means – Monitors operational parameter
Reexamination Certificate
1999-09-14
2001-09-04
Salata, Jonathan (Department: 2832)
Elevator, industrial lift truck, or stationary lift for vehicle
With monitoring, signalling, and indicating means
Monitors operational parameter
C187S391000, C187S414000
Reexamination Certificate
active
06283253
ABSTRACT:
The invention concerns a fastening system for shaft information transmitters of a lift installation comprising cables which are stretched over the height of the shaft and at which the shaft information transmitters provided for the production of shaft information are arranged, wherein the shaft information is produced by means of the shaft information transmitters, and a sensor unit arranged at a lift cage.
BACKGROUND OF THE INVENTION
A lift shaft with non-magnetic cables, which are stretched over the height of the shaft and upon which magnetizable segments or wrappings are arranged, has become known from U.S. Pat. No. 4,203,506. At least one segment is provided for each storey. Sensors for the scanning of the magnetizable segments are provided at the lift cage, which is movable in the lift shaft. The signals of the sensors are used for the production of control signals for the lift cage.
A disadvantage of the known equipment is that expensive non-magnetic cables are necessary to support the magnetizable segments. In addition, once the magnetizable segments are oriented and mounted on the cables they are no longer displaceable or repositionable. Furthermore, additional segments are mountable only with great effort.
BRIEF DESCRIPTION OF THE INVENTION
The present invention provides a remedy to such shortcoming. The invention creates a fastening system, by means of which shaft information transmitters are mountable without great effort and accurately positionable at any time.
The present invention comprises a carrier which is mounted to cables which extend the length of the lift shaft. A plurality of information transmitters are affixed to the carrier. The positioning of the transmitters on the carrier is adjustable, and the transmitters may be affixed to the carrier before the carrier is mounted to the cables. The carrier is mounted to the cable by a slot arrangement which maintains the carrier in a chosen position but still allows the carrier to be re-positioned as may be required. The advantages achieved by the invention include large savings in assembly time. The shaft information transmitters of a lift installation with, for example, five storeys can be mounted in at most two hours. It is furthermore of advantage that all shaft information transmitters associated with a particular shaft position are displaceable and re-positionable at the same time without changing the relative positionings of the shaft information transmitters with respect to each other. It is furthermore advantageous that the shaft information transmitters can he preassembled upon the carrier at the factory, allowing the shaft information transmitters for a particular shaft position to be positioned accurately relative to each other. Thus, only the carrier need be arranged at the corresponding shaft height at the proper location.
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Folli Stefano
Milimatti Paolo
Scherrer Alain
Inventio AG
Salata Jonathan
Schweitzer Cornman Gross & Bondell LLP
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