US3628674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial robot
Assignee: Tokyo Keiki Inc
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Filing: 1970-09-18
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Granted: 1971-12-21
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Expires: 1990-09-18
Abstract
Abstract An industrial robot comprising a truck, an arm support base, an arm mounted thereon, a clamp for a load to be carried, a turning device for the arm, and a pump driving the arm and turning device through directional valves, in which a device is provided for detecting a force applied to the arm and a sliding device is provided for sliding the arm support base, whereby the detecting device detects the force over a predetermined value to cause the sliding device to move the arm support base toward the load.
Inventors
- 👤 Kunio Koike
- 👤 Akio Mito
- 👤 Masayasu Dezaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:36
CPC Classifications
B; B25; B25J; B25J9/00; B25J9/10; B25J9/14; B25J9/144; B25J13/00; B25J13/08; B25J13/085; B25J18/00; B25J18/02; B25J9/02; B25J9/023
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
An industrial robot comprising a truck, an arm support base disposed on said truck, an arm means rotatably fixed to said arm support base, a clamp fixed to said arm means at its one end, a means for turning said arm about its fulcrum, and an oilhydraulic pump for driving said arm and turning means through directional valves respectively, characterized in that a detecting means is provided for detecting a force applied to said arm means by the weight of the object being carried and a sliding means is provided for sliding said arm support base, whereby when the force applied to said arm means exceeds a predetermined value said sliding means operatEs to shift said arm support base toward a load to be carried.
Claim 2
Dependent Claim
125 words
An industrial robot comprising a truck, an arm support base disposed on said truck, an arm means rotatably fixed to said arm support base, a clamp fixed to said arm means at its one end, a means for turning said arm about its fulcrum, and an oilhydraulic pump for driving said arm and turning means through directional valves respectively, characterized in that a detecting means is provided for detecting a force applied to said arm means by the weight of the object being carried and a sliding means is provided for sliding said arm support base, whereby when the force applied to said arm means exceeds a predetermined value said sliding means operatEs to shift said arm support base toward a load to be carried.
Claim 3
Dependent Claim
34 words
An industrial robot as claimed in claim 1, wherein said sliding means consists of a sliding base disposed between said arm support base and said truck and an actuator for driving said sliding base.
Claim 4
Dependent Claim
25 words
An industrial robot as claimed in claim 1, wherein said detecting means is a pressure switch which is provided in connection with said turning means.
Claim 5
Dependent Claim
22 words
An industrial robot as claimed in claim 1, wherein a directional valve is inserted between said oil-hydraulic pump and said sliding means.
Claim 6
Dependent Claim
77 words
An industrial robot as claimed in claim 4, wherein a directional valve is inserted between said oil-hydraulic pump and said arm means, each directional valve is controlled in its actuation by said force detecting means to thereby move said load toward said arm support base and also said arm support base toward said load when said turning means is driven by said oil-hydraulic pump and the force being applied to said arm means exceeds said predetermined value.
References Cited (Backward Citations)
BE641423A
Cited
US3075651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |