Patent US3734556A successfully refreshed from Google Patents.
US3734556A
Expired / Lapsed
US
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Gripper device for industrial robots or the like
Assignee: Komatsu Ltd
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Filing: 1971-07-07
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Granted: 1973-05-22
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Expires: 1991-07-07
Abstract
Abstract A gripper device for industrial robots or the like which includes a sleeve connected integrally with a support member for gripping arms and through which a piston rod for moving said arms towards and away is slidably disposed, said sleeve being formed with a pinion at the inner end thereof, and a cross-shaped cylinder having two cylinder portions, each having a respective axis disposed at a right angle relative to each other and spaced in the vertical direction, one of said cylinder portions receiving a spool formed with a rack engageable with said pinion therein and the other receiving a piston for moving said gripping arms towards and away therein, said cylinder portion receiving the spool being rotatably carried by base members and connected with a rotary mechanism.
Inventors
- 👤 H Misawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:00
CPC Classifications
B; B25; B25J; B25J15/00; B25J15/02; B25J15/0206
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
173 words
A gripper device for industrial robots or the like characterized by that said device includes gripping arms, a support member carrying said gripping arms so as to allow the latter to move towards and away freely, a cross-shaped cylinder having two cylinder portions, each having a respective axis disposed at a right angle relative to each other and spaced in vertical direction, a connecting means interconnecting a piston rod received in one of the cylinder portions of said cross-shaped cylinder with the inner base ends of said gripping arms, a sleeve through which said piston rod is slidably disposed, said sleeve being intergarally connected to said support member and having a pinion formed on its outer periphery, a spool received in the other cylinder portions of said cross-shaped cylinder and having a rack engageable with said pinion formed thereon, a rotary mechainism associated with said cylinder receiving the spool therein, and base members carrying the cylinder portions in which said spool is received so as to allow the cylinder portions to turn freely.
Claim 2
Dependent Claim
173 words
A gripper device for industrial robots or the like characterized by that said device includes gripping arms, a support member carrying said gripping arms so as to allow the latter to move towards and away freely, a cross-shaped cylinder having two cylinder portions, each having a respective axis disposed at a right angle relative to each other and spaced in vertical direction, a connecting means interconnecting a piston rod received in one of the cylinder portions of said cross-shaped cylinder with the inner base ends of said gripping arms, a sleeve through which said piston rod is slidably disposed, said sleeve being intergarally connected to said support member and having a pinion formed on its outer periphery, a spool received in the other cylinder portions of said cross-shaped cylinder and having a rack engageable with said pinion formed thereon, a rotary mechainism associated with said cylinder receiving the spool therein, and base members carrying the cylinder portions in which said spool is received so as to allow the cylinder portions to turn freely.
Claim 3
Dependent Claim
54 words
A gripper device for industrial robots or the like according to claim 1 characterized by that the cylinder portions receiving a spool therein is formed with a pinion on its outer periphery, said pinion being engageable with a rack formed on the piston rod which is received in the cylinder of the base member.
References Cited (Backward Citations)
US3199910A
Cited
US3655232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |