US3707206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator control apparatus
Assignee: Hitachi Ltd
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Filing: 1971-04-20
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Granted: 1972-12-26
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Expires: 1991-04-20
Abstract
Abstract An elevator control apparatus having a tracing device simulating the movement of an elevator cage at a certain reduced speed ratio, a preceding device detecting a target floor to determine the running mode of the elevator cage, a chain moved synchronously with the movement of the elevator cage at a smaller reduced speed ratio than said tracing means, mark plates provided on the chain at intervals proportional to each floor interval, a detector for detecting the mark plates in order to produce signals according to the positions of the elevator cage, and a pattern generator for generating a deceleration pattern by means of relays excited through the output of the detectors when the elevator cage approaches the target floor detected by the preceding device.
Inventors
- 👤 Akinori Watanabe
- 👤 Yoshinori Takahashi
- 👤 Seinosuke Yahiro
- 👤 Kikuo Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:16
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/52
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
131 words
An elevator control apparatus having first means operatively connected to the elevator cage for tracing the movement of an elevator cage with a certain reduced speed ratio therewith and second means detecting a target floor to determine the running mode of the elevator cage, the improvement comprising an elongated flexible member moved synchronously with the movement of the elevator cage with a smaller reduced speed ratio than said first means, mark means provided on said flexible member at intervals proportional to each floor interval, means for detecting said mark means in order to produce signals according to the positions of the elevator cage, and means for generating a deceleration pattern in response to outputs of said detecting means when the elevator cage approaches the target floor detected by said second means.
Claim 2
Dependent Claim
131 words
An elevator control apparatus having first means operatively connected to the elevator cage for tracing the movement of an elevator cage with a certain reduced speed ratio therewith and second means detecting a target floor to determine the running mode of the elevator cage, the improvement comprising an elongated flexible member moved synchronously with the movement of the elevator cage with a smaller reduced speed ratio than said first means, mark means provided on said flexible member at intervals proportional to each floor interval, means for detecting said mark means in order to produce signals according to the positions of the elevator cage, and means for generating a deceleration pattern in response to outputs of said detecting means when the elevator cage approaches the target floor detected by said second means.
Claim 3
Dependent Claim
42 words
An elevator control apparatus according to claim 1, wherein said generating means includes means responsive to said second means for generating deceleration patterns having different maximum speeds in accordance with the running mode of the elevator cage detected by said second means.
Claim 4
Dependent Claim
19 words
An elevator control apparatus according to claim 1, wherein said elongated flexible member is formed as an endless loop.
Claim 5
Dependent Claim
28 words
An elevator control apparatus according to claim 3, wherein said elongated flexible member is wound up by a reel in proportion to the movement of the elevator cage.
Claim 6
Dependent Claim
26 words
An elevator control apparatus according to claim 3, wherein said elongated flexible member is an element selected from the group consisting of chains, wires and tapes.
Claim 7
Dependent Claim
25 words
An elevator control apparatus according to claim 3, wherein said elongated flexible member is an element selected from the group consisting of wires and tapes.
Claim 8
Dependent Claim
53 words
An elevator control apparatus according to claim 6, wherein said elongated flexible member is made of magnetic material, and signals are magnetically recorded thereon at intervals proportional to each floor interval to form said mark means, said detecting means being provided as magnetic heads for detecting the recorded portions of said flexible member.
Claim 9
Dependent Claim
86 words
In an elevator control apparatus including tracing means translated in coordination with the elevator cage at a certain reduced speed ratio therewith and second means driven by said tracing means for detecting a target floor to determine the running mode of the elevator cage, the improvement comprising position detecting means for detecting the position of said elevator cage with respect to the various floors including an elongated flexible member moved in coordination with the elevator cage with a smaller reduced speed ratio than said tracing means.
Claim 10
Dependent Claim
86 words
In an elevator control apparatus including tracing means translated in coordination with the elevator cage at a certain reduced speed ratio therewith and second means driven by said tracing means for detecting a target floor to determine the running mode of the elevator cage, the improvement comprising position detecting means for detecting the position of said elevator cage with respect to the various floors including an elongated flexible member moved in coordination with the elevator cage with a smaller reduced speed ratio than said tracing means.
Claim 11
Dependent Claim
83 words
An elevator control apparatus according to claim 8, wherein said second means includes a first set of stationary contacts spaced in proportion to the intervals between floors and a first movable contact carried by said tracing means at a position ahead of said tracing means by one floor interval, and speed control means responsive to contact of said first movable contact with one of said first set of stationary contacts receiving a control signal for limiting the maximum speed of said elevator cage.
Claim 12
Dependent Claim
83 words
An elevator control apparatus according to claim 9, wherein said second means further includes a second set of stationary contacts spaced in proportion to the intervals between floors and a second movable contact carried by said tracing means at a position ahead of said tracing means by two floor intervals, said speed control means being responsive to contact of said second movable contact with one of said second set of stationary contacts receiving a control signal for initiating deceleration of said elevator cage.
Claim 13
Dependent Claim
19 words
An elevator control apparatus according to claim 10, wherein said elongated flexible member is formed as an endless loop.
Claim 14
Dependent Claim
28 words
An elevator control apparatus according to claim 11, wherein said elongated flexible member is wound up by a reel in proportion to the movement of the elevator cage.
Claim 15
Dependent Claim
53 words
An elevator control apparatus according to claim 12, wherein said elongated flexible member is made of magnetic material, and signals are magnetically recorded thereon at intervals proportional to each floor interval to form said mark means, said detecting means being provided as magnetic heads for detecting the recorded portions of said flexible member.
References Cited (Backward Citations)
US3570630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |