US3777832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chassis structure for a motor sleigh or equivalent vehicle
Assignee: Valmet Technologies Oy
•
Filing: 1972-04-07
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Granted: 1973-12-11
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Expires: 1992-04-07
Abstract
Abstract A motor sleigh or the like having a chassis provided with an elongated spring in the direction of travel of the sleigh in the middle thereof. The ends of the spring carry supports for the wheels of the track mat. An auxiliary body has one end supported in the center of the spring and a forwardly extending part carrying the steering column.
Inventors
- 👤 M Merenheimo
- 👤 M Ruuska
- 👤 R Saivisalmi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:53
CPC Classifications
B; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
A vehicle, such as a motor sleigh, comprising an elongated horizontal spring extending parallel to the direction of movement of the vehicle in the center thereof, said spring being flexible vertically and turnable about its longitudinal axis, a carriage, a seat space carried by said carriage, said carriage being mounted upon said spring in the central portion of said spring, at least one track mat, means detachably connecting said track mat with said spring, said track mat having forward return wheels and rear return wheels, means connecting said forward return wheels to the forward end of said spring, a vehicle engine, transmission means connected with said engine and means mounting said engine and said transmission means on one end of said spring, said transmission means comprising a traction shaft integrally journalled in said spring, said rear return wheels being mounted upon the ends of said traction shaft.
Claim 2
Dependent Claim
147 words
A vehicle, such as a motor sleigh, comprising an elongated horizontal spring extending parallel to the direction of movement of the vehicle in the center thereof, said spring being flexible vertically and turnable about its longitudinal axis, a carriage, a seat space carried by said carriage, said carriage being mounted upon said spring in the central portion of said spring, at least one track mat, means detachably connecting said track mat with said spring, said track mat having forward return wheels and rear return wheels, means connecting said forward return wheels to the forward end of said spring, a vehicle engine, transmission means connected with said engine and means mounting said engine and said transmission means on one end of said spring, said transmission means comprising a traction shaft integrally journalled in said spring, said rear return wheels being mounted upon the ends of said traction shaft.
Claim 3
Dependent Claim
74 words
Chassis structure for motor sleigh according to claim 3, characterized in that to the spring at its end opposite to that carrying the engine (18) a supporting rod (14) has been attached transversally to the longitudinal direction of the spring (1) and that with the ends of said supporting rod (14) the journalling bodies (15) of one set of return wheels (16) of the track mat (12,37) of the motor sleigh have been connected.
Claim 4
Dependent Claim
63 words
Chassis structure for motor sleigh according to claim 4, wherein the track mat (12,37) rests against the body of the motor sleigh by mediation of ski-like slides (13), characterized in that the ski-like slides (13) rest substantially at their centre against a leaf spring (7) transversal to the spring (1) and attached by its centre substantially to the centre of the spring (1).
Claim 5
Dependent Claim
43 words
Chassis structure for motor sleigh according to claim 1, characterized in that the ski-like slides (13) have been attached to the ends (32) of the transverse leaf spring (7) in such manner that the slides are free to turn about their longitudinal axis.
Claim 6
Dependent Claim
37 words
Chassis structure for motor sleigh according to claim 6, characterized in that on one end of the ski-like slides (13) the journalling bodies (15) of the return wheels (16) of the track mat (12,37) have been mounted.
Claim 7
Dependent Claim
56 words
Chassis structure for motor sleigh according to claim 7, characterized in that the supporting rods (14) have been so attached to the journalling bodies (15) of the return wheels (16) that the supporting rod (14) and the journalling body (15) can turn with reference to each other about the longitudinal axis of the ski-like slide (13).
Claim 8
Dependent Claim
83 words
Chassis structure for motor sleigh according to claim 8, characterized in that to the end of the supporting rod (14) by threads (27) a sleeve (26) has been attached, with the end of which by threads (29) connects a screw (28), which is attached to the journalling body (15), so that by turning the sleeve (26) the track gauge of the track mat (12,37) can be adjusted and by turning the screw (28) the tension of the track mat (12,37) can be adjusted.
Claim 9
Dependent Claim
86 words
Chassis structure for motor sleigh according to claim 7, characterized in that substantially to the centre of the spring (1) a beam (8) has been affixed, which carries an attachment means (9a), and that to the body beam (10) of the motor sleigh another attachment means (9b) mating with the first attachment means (9a) has been affixed, and that the body part of the motor sleigh (2) has been attached to the body beam (10) to achieve divisibility of the chassis structure and body part (2).
Claim 10
Dependent Claim
35 words
Chassis structure for motor sleigh according to claim 8, characterized in that the body beam (10) at its end carries a sleeve (11) with which the steering column (4) of the motor sleigh is associated.
References Cited (Backward Citations)
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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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |