US4782713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial robot shaft supporting mechanism
Assignee: Fanuc Corp
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Filing: 1986-09-10
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Granted: 1988-11-08
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Expires: 2006-09-10
Abstract
Abstract A shaft supporting mechanism of an industrial robot in which an arm is supported by a freely extendable support shaft inside a hollow post and a working plane of a working arm is variably set is provided, with plural sets of linear support guides in opposed relation about a drive mechanism of the support shaft. As a result, the support shaft is held in the post stably and balanced in the vertical direction even if an external force attempting to tilt the support shaft is applied during up-and-down movement of the support shaft or operation of the working arm.
Inventors
- 👤 Nobutoshi Torii
- 👤 Ryo Nihei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:25
CPC Classifications
B; B25; B25J; B25J19/00; B25J9/00; B25J9/02; B25J9/04; B25J9/041; B25J9/042; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/56; B23Q1/58; B25J18/00; B25J18/02; B25J18/025; B25J9/08; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20305; Y10T74/20317
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
A shaft supporting mechanism of an industrial robot in which an arm is supported by a freely extendable support shaft inside a hollow post and a working plane of the arm is variably set, comprising: (a) a drive mechanism positioned outside said support shaft for driving said support shaft to extend and retract the same vertically; (b) a plurality of guide seats connected to said support shaft, arranged at positions substantially laterally symmetrical with respect to said drive mechanism and each having an opening; and (c) a corresponding plurality of linear support guides engaging said guide seats and being attached to opposing inner wall portions of said post.
Claim 2
Dependent Claim
108 words
A shaft supporting mechanism of an industrial robot in which an arm is supported by a freely extendable support shaft inside a hollow post and a working plane of the arm is variably set, comprising: (a) a drive mechanism positioned outside said support shaft for driving said support shaft to extend and retract the same vertically; (b) a plurality of guide seats connected to said support shaft, arranged at positions substantially laterally symmetrical with respect to said drive mechanism and each having an opening; and (c) a corresponding plurality of linear support guides engaging said guide seats and being attached to opposing inner wall portions of said post.
Claim 3
Dependent Claim
35 words
A shaft supporting mechanism of an industrial robot according to claim 1, wherein said linear support guides are adapted in such a manner that said guide seats engage grooves in two, opposing side surfaces thereof.
Claim 4
Dependent Claim
123 words
A shaft supporting mechanism of an industrial robot in which an arm is supported by a freely extendable support shaft inside a hollow post and a working plane of the arm is variably set, comprising: (a) a drive mechanism for driving said support shaft to extend and retract the same; (b) a plurality of guide seats connected to said support shaft arranged at positions symmetrical with respect to said drive mechanism and each having an opening; and (c) linear support guides engaging said guide seats and attached to opposing inner wall portions of said post, wherein said post is so adapted as to be separable into a portion to which said linear support guides are attached and a portion other than said portion.
Claim 5
Dependent Claim
123 words
A shaft supporting mechanism of an industrial robot in which an arm is supported by a freely extendable support shaft inside a hollow post and a working plane of the arm is variably set, comprising: (a) a drive mechanism for driving said support shaft to extend and retract the same; (b) a plurality of guide seats connected to said support shaft arranged at positions symmetrical with respect to said drive mechanism and each having an opening; and (c) linear support guides engaging said guide seats and attached to opposing inner wall portions of said post, wherein said post is so adapted as to be separable into a portion to which said linear support guides are attached and a portion other than said portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-08 | 1992-05-09 | 1992-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-08 | 1996-05-09 | 1996-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-08 | 2000-05-09 | 2000-11-08 | $7700.00 | Window Closed / Lapsed |