Patent US3587771A successfully refreshed from Google Patents.
Patent US4047597A successfully refreshed from Google Patents.
US4047597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide device for elevator
Assignee: Mitsubishi Electric Corp
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Filing: 1976-01-14
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Granted: 1977-09-13
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Expires: 1996-01-14
Abstract
Abstract A guide device for guiding an elevator during its ascending and descending movement features a pair of guide rails disposed on opposite sides of the elevator body in parallel relation with the vertical line of movement of the elevator body and spaced apart to provide a gap between the sides of the elevator body and the guide rails, a plurality of guides carried by the elevator body and being interlocked with the guide rails on both sides of the elevator body to guide the vertical movement of the elevator body along the guide rails, and the guides being slidably disposed on the elevator body and spring biased in the direction of the guide rails so as to maintain the guides in interlocked relation with the guide rails in their normal state and to project the guide further in the corresponding direction of one of the guide rails when the elevator is shifted accidentally to one side to bend the other guide rail, upon collision therewith, and thus prevent derailment of the elevator from the guide rails.
Inventors
- 👤 Masaatsu Okura
- 👤 Kazutoshi Ota
- 👤 Sadayuki Otomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:02
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/04; B66B7/047; B66B7/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
393 words
A guide device for an elevator body, the elevator body being movable along first and second parallel guide rails, the guide device comprising: a first sliding guide, the first sliding guide being slidably movable along the first guide rail, a first hollow holder, a first shaft slidably disposed within the first hollow holder and connected to the first sliding guide, the first shaft having a stop associated therewith so as to permit the first shaft to be slidably displaced within the first hollow holder a distance of greater than 10 mm., a first buffer of resilient material disposed between the first hollow holder and the first sliding guide and being connected to one but not the other, a first compressed spring being disposed between the first hollow holder and the first sliding guide to force the first hollow holder away from the first sliding guide, the first hollow holder being connected to the elevator body, a second sliding guide, the second sliding guide being slidably movable along the second guide rail, a second hollow holder, a second shaft slidably disposed within the second hollow holder and connected to the second sliding guide, the second shaft having a stop associated therewith so as to permit the second shaft to be slidably displaced within the second hollow holder a distance of greater than 10 mm., a second buffer of resilient material disposed between the second hollow holder and the second sliding guide and being connected to one but not the other, a second compressed spring being disposed between the second hollow holder and the second sliding guide to force the second hollow holder away from the second sliding guide, the second hollow holder being connected to the elevator body, whereby, when the elevator body is forced towards the second guide rail, the second buffer prevents the force of the elevator body from being transmitted in its entirety to the second sliding guide in order to permit the second sliding guide to remain in alignment with the second guide rail and whereby, when the elevator body is forced towards the second guide rail, the slidable first shaft permits the first hollow holder to be displaced away from the first slide guide by an additional distance greater than 10 mm. in order to permit the first sliding guide to remain in alignment with the first guide rail.
Claim 2
Dependent Claim
393 words
A guide device for an elevator body, the elevator body being movable along first and second parallel guide rails, the guide device comprising: a first sliding guide, the first sliding guide being slidably movable along the first guide rail, a first hollow holder, a first shaft slidably disposed within the first hollow holder and connected to the first sliding guide, the first shaft having a stop associated therewith so as to permit the first shaft to be slidably displaced within the first hollow holder a distance of greater than 10 mm., a first buffer of resilient material disposed between the first hollow holder and the first sliding guide and being connected to one but not the other, a first compressed spring being disposed between the first hollow holder and the first sliding guide to force the first hollow holder away from the first sliding guide, the first hollow holder being connected to the elevator body, a second sliding guide, the second sliding guide being slidably movable along the second guide rail, a second hollow holder, a second shaft slidably disposed within the second hollow holder and connected to the second sliding guide, the second shaft having a stop associated therewith so as to permit the second shaft to be slidably displaced within the second hollow holder a distance of greater than 10 mm., a second buffer of resilient material disposed between the second hollow holder and the second sliding guide and being connected to one but not the other, a second compressed spring being disposed between the second hollow holder and the second sliding guide to force the second hollow holder away from the second sliding guide, the second hollow holder being connected to the elevator body, whereby, when the elevator body is forced towards the second guide rail, the second buffer prevents the force of the elevator body from being transmitted in its entirety to the second sliding guide in order to permit the second sliding guide to remain in alignment with the second guide rail and whereby, when the elevator body is forced towards the second guide rail, the slidable first shaft permits the first hollow holder to be displaced away from the first slide guide by an additional distance greater than 10 mm. in order to permit the first sliding guide to remain in alignment with the first guide rail.
References Cited (Backward Citations)
US857725A
Cited
US1032454A
Cited
US1899751A
Cited
US1916365A
Cited
US1855253A
Cited
US2057118A
Cited
US2005089A
Cited
US2601503A
Cited
US3425516A
Cited
US3762694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |