US4478308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial vehicle having an adjustable and pivotal armrest
Assignee: De Rotterdamsche Droogdok Maatschappij BV
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Filing: 1983-02-09
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Granted: 1984-10-23
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Expires: 2003-02-09
Abstract
Abstract The invention relates to an industrial vehicle comprising a frame supported by ground wheels and/or caterpillars or the like. A driver seat is supported by said frame and provided with at least one armrest (elbow rest) and one or more control-members disposed near the elbow rest for controlling the movements of the vehicle and/or members connected with the vehicle. The elbow rest and the control-member(s) are disposed near the top end of a supporting column which is pivotable about a pivotal shaft located near the bottom side of the column and extending transversely of the longitudinal axis of the driver seat and fixable in at least two positions.
Inventors
- 👤 Lambertus G. M. Klaassen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/58; G05G1/62; B; B60; B60K; B60K26/00; B60N; B60N2/00; B60N2/75; B60N2/763; B60N2/767; B60N2/79; B60N2/797; E; E02; E02F; E02F9/00; E02F9/20; E02F9/2004; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
164 words
An industrial vehicle comprising a frame, a driver seat supported by said frame and provided with at least one armrest mounted on an upwardly-extending supporting column together with control means for controlling the vehicle, said column being mounted on a generally upright support member for adjustment lengthwise of said support member, first locking means for locking said column in a desired height position with respect to said support member, means mounting said support member for pivoting about a pivot axis located near the lower end of said support member and extending crosswise of the seat whereby by pivoting said support member the armrest can be moved out of an operative position towards the rear side of the driver seat into an inoperative position and vice versa, second locking means for selectively locking said support member in either the operative or inoperative position of the armrest, and means for operating said second locking means including a handle mounted near the top end of the column.
Claim 2
Dependent Claim
164 words
An industrial vehicle comprising a frame, a driver seat supported by said frame and provided with at least one armrest mounted on an upwardly-extending supporting column together with control means for controlling the vehicle, said column being mounted on a generally upright support member for adjustment lengthwise of said support member, first locking means for locking said column in a desired height position with respect to said support member, means mounting said support member for pivoting about a pivot axis located near the lower end of said support member and extending crosswise of the seat whereby by pivoting said support member the armrest can be moved out of an operative position towards the rear side of the driver seat into an inoperative position and vice versa, second locking means for selectively locking said support member in either the operative or inoperative position of the armrest, and means for operating said second locking means including a handle mounted near the top end of the column.
Claim 3
Dependent Claim
81 words
An industrial vehicle as defined in claim 1 wherein said pivot axis is located approximately midway between the front and rear of the driver seat and generally at the level of the frame and the support member pivots through an arc of approximately 45° between operative and inoperative positions whereby the lower part of the column and support member move through a lesser distance than the upper part of the column and the armrest in moving between operative and inoperative positions.
Claim 4
Dependent Claim
29 words
An industrial vehicle as defined in claim 2 wherein said means for operating said second locking means includes a Bowden cable in said column and connected to said handle.
Claim 5
Dependent Claim
22 words
An industrial vehicle as defined in claim 1 wherein said first locking means includes a handle on the column below said armrest.
Claim 6
Dependent Claim
89 words
An industrial vehicle as claimed in claim 1 characterized in that said second locking means comprises a locking pin displaceable in its direction of length with the aid of a cable, a plate fixed to said frame into which said locking pin can be inserted into either one of two holes provided therein and relatively off-set through a given angular distance, said locking pin being located in a clamping sleeve having at one end a cable-receiving passage flaring in trumpet fashion in a direction away from the locking pin.
Claim 7
Dependent Claim
26 words
An industrial vehicle as claimed in claim 1 characterized in that the column is hollow for passing cables and/or leads connected with the vehicle control means.
Claim 8
Dependent Claim
22 words
An industrial vehicle as claimed in claim 1 characterized in that rocking switches are arranged near the front end of the armrest.
Claim 9
Dependent Claim
38 words
An industrial vehicle as claimed in claim 1 characterized in that inside the column a gas spring is provided for balancing the weight of the column and the vehicle control means displaceable therewith in a direction of height.
Claim 10
Dependent Claim
22 words
An industrial vehicle as claimed in claim 1 characterized in that a control-member for a bulldozer plate is arranged on the column.
Claim 11
Dependent Claim
77 words
An industrial vehicle as claimed in claim 1 characterized in that a control-member formed by a lever pivotable with respect to the column and being pivotable about a pivotal shaft located inside the column is provided with a curved tie piece which is passed through a hole in the top wall of the column, whilst the centre of the curvature of the curved tie piece is located on the pivotal shaft about which said lever is pivotable.
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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) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |