US3777854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator floor selector
Assignee: Mitsubishi Electric Corp
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Filing: 1971-11-29
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Granted: 1973-12-11
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Expires: 1991-11-29
Abstract
Abstract A plurality of control discs are mounted on a vertical shaft at those positions corresponding to those floors of a building. The shaft is rotated in response to the travel of an elevator car. An advance element carrying a plurality of deceleration switches is moved ahead of the travelling car at a predetermined advance range. When the advance element reaches and stops at the particular calling floor, an actuator disposed on that disc for the calling floor continues to be rotated to successively operate the switches to decelerate the car until it lands at the calling floor.
Inventors
- 👤 Y Ozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:51
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
340 words
A signal generator for an elevator serving a plurality of floors of a building, comprising, in combination, a driving shaft rotated in response to the travel of an elevator car, a plurality of control elements disposed along said shaft and fixed at positions corresponding to each of the floors and rotated by said driving shaft, driving means different from that driving the elevator, coupling means comprised of a rotary member rotated in synchronization with the travel of the elevator car and an advance rotary member driven by said driving means, said advance rotary member engaging and rotating together with said synchronously rotated rotary member after said advance rotary member is rotated by said driving means through at least an angle corresponding to a maximum distance between a floor position and the actual position of the elevator, a signalling element disposed in a plane corresponding to a plane of rotation of said control elements and concentrically disposed around said driving shaft, said signal element having at least one signal generating means thereon engageable by a control element during rotation of a control element within said signalling element, said signalling element being coupled to said advance rotary member and driven thereby along said driving shaft ahead of the elevator, and stop means for each floor disposed along said driving shaft at positions corresponding to said control elements and adapted to be coupled to call buttons for the respective floors to be activated by the call buttons, said stop means being engageable by said signal element in its movement along said driving shaft and being coupled to said driving means for stopping said driving means when activated and engaged by said signal element for stopping the signal element at a control element corresponding to a floor for which a call button has been activated, whereby the signal element stops at a control element corresponding to a floor from which a call has come and the rotation of the control element generates a signal in accordance with the actual position of the traveling elevator.
Claim 2
Dependent Claim
340 words
A signal generator for an elevator serving a plurality of floors of a building, comprising, in combination, a driving shaft rotated in response to the travel of an elevator car, a plurality of control elements disposed along said shaft and fixed at positions corresponding to each of the floors and rotated by said driving shaft, driving means different from that driving the elevator, coupling means comprised of a rotary member rotated in synchronization with the travel of the elevator car and an advance rotary member driven by said driving means, said advance rotary member engaging and rotating together with said synchronously rotated rotary member after said advance rotary member is rotated by said driving means through at least an angle corresponding to a maximum distance between a floor position and the actual position of the elevator, a signalling element disposed in a plane corresponding to a plane of rotation of said control elements and concentrically disposed around said driving shaft, said signal element having at least one signal generating means thereon engageable by a control element during rotation of a control element within said signalling element, said signalling element being coupled to said advance rotary member and driven thereby along said driving shaft ahead of the elevator, and stop means for each floor disposed along said driving shaft at positions corresponding to said control elements and adapted to be coupled to call buttons for the respective floors to be activated by the call buttons, said stop means being engageable by said signal element in its movement along said driving shaft and being coupled to said driving means for stopping said driving means when activated and engaged by said signal element for stopping the signal element at a control element corresponding to a floor for which a call button has been activated, whereby the signal element stops at a control element corresponding to a floor from which a call has come and the rotation of the control element generates a signal in accordance with the actual position of the traveling elevator.
Claim 3
Dependent Claim
40 words
A signal generator as claimed in claim 1 in which said control elements each comprise a flat disc with at least one switch actuator element thereon, and said signal generating means on said signal element comprises at least one switch.
Claim 4
Dependent Claim
51 words
A signal generator as claimed in claim 2 in which there are a plurality of switches on said signal element which are adapted to be coupled to the elevator drive means for decelerating the drive means to decelerate the elevator for stopping at the floor from which the call has come.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |