US4179949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control pedal
Assignee: Caterpillar Industrial Inc
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Filing: 1978-06-28
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Granted: 1979-12-25
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Expires: 1998-06-28
Abstract
Abstract A foot-operated accelerator pedal (18) in a lift truck (10) commonly provides for control of forward (14) and reverse (16) direction as well as acceleration (12) of the truck (10). Directional control portions (22) (24) of the pedal (18) are mounted on and movable relative to the accelerator control portion (20) for actuating switches upon making direct contact with the switches which are mounted on or near the pedal (18). A solution is offered to the common problem of relatively short wear life associated with such direct contact switches. The solution includes a pedal (18) having accelerator (20) and directional control portions (22) (24) and switches (80F) (80R) which are actuated without the need for direct contact with their actuators (92).
Inventors
- 👤 Harold V. Hildebrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:03
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/30; G05G1/36; H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; H01H21/26; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20528; Y10T74/20534; Y10T74/20576; Y10T74/20888
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
In a vehicle (10) including a control pedal (18) having an accelerator portion (20), said accelerator portion (20) including a foot contact surface (38) and an underside surface (39), the improvement comprising: a switch (80) mounted adjacent the underside surface (39); a switch actuator (92); and means (22) for moving the switch actuator (92) relative to the switch (80), said means being connected to the accelerator portion (20) and having one end (62) including the switch actuator (92) adjacent the underside surface (39) and another end (60) adjacent the foot contact surface (38), said one end (62) movable toward the underside surface (39) adjacent the switch (80) in response to movement of the other end (60).
Claim 2
Dependent Claim
116 words
In a vehicle (10) including a control pedal (18) having an accelerator portion (20), said accelerator portion (20) including a foot contact surface (38) and an underside surface (39), the improvement comprising: a switch (80) mounted adjacent the underside surface (39); a switch actuator (92); and means (22) for moving the switch actuator (92) relative to the switch (80), said means being connected to the accelerator portion (20) and having one end (62) including the switch actuator (92) adjacent the underside surface (39) and another end (60) adjacent the foot contact surface (38), said one end (62) movable toward the underside surface (39) adjacent the switch (80) in response to movement of the other end (60).
Claim 3
Dependent Claim
33 words
The apparatus of claim 1 wherein: the means (22) for moving the switch actuator (92) is resiliently biased for maintaining the other end (60) in raised relationship relative to foot contact surface (38).
Claim 4
Dependent Claim
24 words
The apparatus of claim 1 wherein: the means (22) for moving the switch actuator (92) is pivotally and resiliently connected to accelerator portion (20).
Claim 5
Dependent Claim
108 words
A control pedal (18) comprising: an accelerator portion (20) of the pedal (18) including a foot contact surface (38) and an underside surface (39); a switch (80) mounted adjacent the underside surface (39); a switch actuator (92); and means (22) for moving the switch actuator (92) relative to the switch (80), said means being connected to the accelerator portion (20) and having one end (62) including the switch actuator (92) adjacent the underside surface (39) and another end (60) adjacent the foot contact surface (38), said one end (62) movable toward the underside surface (39) adjacent the switch (80) in response to movement of the other end (60).
Claim 6
Dependent Claim
108 words
A control pedal (18) comprising: an accelerator portion (20) of the pedal (18) including a foot contact surface (38) and an underside surface (39); a switch (80) mounted adjacent the underside surface (39); a switch actuator (92); and means (22) for moving the switch actuator (92) relative to the switch (80), said means being connected to the accelerator portion (20) and having one end (62) including the switch actuator (92) adjacent the underside surface (39) and another end (60) adjacent the foot contact surface (38), said one end (62) movable toward the underside surface (39) adjacent the switch (80) in response to movement of the other end (60).
Claim 7
Dependent Claim
48 words
The control pedal (18) of claim 4 wherein: the means (22) for moving the switch actuator (92) is resiliently biased for maintaining the one end (62) spaced from underside surface (39) and for simultaneously maintaining the other end (60) in raised relationship relative to foot contact surface (38).
Claim 8
Dependent Claim
40 words
The control pedal (18) of claim 4 wherein: the means (22) for moving the switch actuator (92) is pivotally connected to accelerator portion (20) and is resiliently biased for maintaining the one end (62) spaced from the underside surface (39).
Claim 9
Dependent Claim
44 words
The control pedal (18) of claim 4 wherein: the means (22) for moving the switch actuator (92) is pivotally connected to accelerator portion (20) and is resiliently biased for maintaining the other end (60) in raised relationship relative to the foot contact surface (38).
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) | 1982-12-24 | 1983-06-25 | 1983-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-24 | 1987-06-25 | 1987-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-24 | 1991-06-25 | 1991-12-25 | $7700.00 | Window Closed / Lapsed |