US3876255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheels for a course stable selfpropelling vehicle movable in any desired direction on the ground or some other base
Assignee: JOHNSSON ERIC S
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Filing: 1972-11-13
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Granted: 1975-04-08
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Expires: 1992-11-13
Abstract
Abstract A wheel for a course stable selfpropelling vehicle, having a centre part rotatable about an axis and a plurality of ground engaging means rotatably mounted on the centre part about the periphery thereof. Each ground engaging means being an elongated roll having its surface convexly vaulted in longitudinal direction and being mounted with its axis extending obliquely with respect to the axis of rotation of the centre part. The spacing between the rolls and the angle between the longitudinal axes of the rolls and the axis of rotation being selected so that the rolls define together an unbroken wheel periphery, seen from a point on an extension of the axis of rotation.
Inventors
- 👤 Bengt Erland Ilon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:36
CPC Classifications
B; B60; B60B; B60B19/00; B60B19/003; B60B19/12; B60B19/125; B60B2310/00; B60B2310/30; B60B2310/302; B60B2310/305; B60B2360/00; B60B2360/10; B60B2380/00; B60B2380/10; B60B2380/16; B60B2380/18; B60B2900/00; B60B2900/30; B60B2900/351; B65; B65G; B65G2207/00; B65G2207/34
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
202 words
Improvements in wheels of a course stable self-propelling vehicle, being movable in any desired direction on the ground or another base, whereby each wheel (1) includes a centre part (3) mounted on a centre axis (2) being rotatably and transversely disposed in relation to the side of the vehicle and further includes a plurality of ground engaging means rotatably mounted on the centre part (3) and distributed around the same, characterized in that each ground engaging means is designed as an elongated roll (9) having the outer side thereof convexely vaulted in the longitudinal direction thereof, and that each roll (9) is disposed in the centre part (3) having the longitudinal centre axis (8) thereof obliquely positioned in relation to the centre axis (2) of the centre part (3) and that the angle between the centre axis of each roll (9) and the centre part (3) and furthermore the distance at which the rolls are positioned in relation to each other around the centre part is selected in such a manner, that the rolls, seen from a point on an extension of the centre axis of the centre part and in a direction towards the wheel, together define an unbroken wheel periphery.
Claim 2
Dependent Claim
202 words
Improvements in wheels of a course stable self-propelling vehicle, being movable in any desired direction on the ground or another base, whereby each wheel (1) includes a centre part (3) mounted on a centre axis (2) being rotatably and transversely disposed in relation to the side of the vehicle and further includes a plurality of ground engaging means rotatably mounted on the centre part (3) and distributed around the same, characterized in that each ground engaging means is designed as an elongated roll (9) having the outer side thereof convexely vaulted in the longitudinal direction thereof, and that each roll (9) is disposed in the centre part (3) having the longitudinal centre axis (8) thereof obliquely positioned in relation to the centre axis (2) of the centre part (3) and that the angle between the centre axis of each roll (9) and the centre part (3) and furthermore the distance at which the rolls are positioned in relation to each other around the centre part is selected in such a manner, that the rolls, seen from a point on an extension of the centre axis of the centre part and in a direction towards the wheel, together define an unbroken wheel periphery.
Claim 3
Dependent Claim
81 words
A device according to claim 1, characterized in that the angle between the centre axis (8 and 2) of each roll (9) and the centre part (3), the length of the rolls (9) and/or the distance between the bearings (7) of the adjacent rolls (9) on the centre part (3) , are selected in such a manner that each roll (9), seen from said point and in a direction towards the wheel (1), essentially begins where the adjacent roll (9) terminates.
Claim 4
Dependent Claim
31 words
A device according to claim 1, characterized in that the outer side of each roll (9) is broken by recesses (11) directed peripherally in relation to the centre axis (8) thereof.
Claim 5
Dependent Claim
18 words
A device according to claim 1, characterized in that each roll (9) is formed of a homogenous material.
Claim 6
Dependent Claim
21 words
A device according to claim 1, characterized in that each roll (9) has an outer wear layer of a hard material.
Claim 7
Dependent Claim
18 words
A device according to claim 1, characterized in that each roll (9) is made from an elastical material.
Claim 8
Dependent Claim
28 words
A device according to claim 6, characterized in that each roll (9) has a number of inner channels (12) preferably directed parallel to the centre axis (8) thereof.
Claim 9
Dependent Claim
22 words
A device according to claim 6, characterized in that each roll (9) has at least one closable chamber (13) for compressed air.
Claim 10
Dependent Claim
49 words
A device according to claim 8, characterized in that each roll (9) has an inner chamber (13) open towards the passing-through centre axis (8) thereof, whereby the roll (9) on both sides of the chamber (13) sealingly engages this axis (8) to define a closed chamber for compressed air.
Claim 11
Dependent Claim
50 words
A device according to claim 1, characterized in that each roll (9) comprises two parts (9a, 9b) and that said parts (9a, 9b) are disposed on a common centre axis (8) on both sides of a bracket (16) for the axis (8), said bracket extending from the centre part (3).
Claim 12
Dependent Claim
34 words
A device according to claim 10, characterized in that the parts (9a, 9b) of the roll are rotatably mounted on the centre axis (8) and said axis is fixedly secured to the bracket (16).
Claim 13
Dependent Claim
61 words
A device according to claim 10, characterized in that the parts (9a, 9b) of the roll are fixedly secured to the centre axis (8) and said axis is rotatably mounted in a bearing casing (19) through roll bearings (20) or the similar positioned at a distance from each other, whereby the bearing casing (19) is fixedly secured to the bracket (16).
Claim 14
Dependent Claim
48 words
A device according to claim 12, characterized in that the parts (9a, 9b) of each roll has inner gable sides (9c) positioned closely to the bracket (16) and that axial recesses (9d) are formed in said gable sides (9c), whereby the bearing casing (19) extends into said recesses.
Claim 15
Dependent Claim
59 words
A device according to claim 10, characterized in that the parts (9a, 9b) of the roll are so disigned that after the mounting of the parts on the centre axis (8) the gable sides (9e) thereof are positioned outside this axis (8) and also outside retaining means (22) to secure the parts (9a, 9b) to the axis (8) .
Claim 16
Dependent Claim
60 words
A device according to claim 10, characterized in that the bracket (16) comprises a flange (17) connected to the centre part (3) in an extending manner and running in a zig-zag line around the periphery of the same, whereby the flange (17) has straight sections (17a) for each roll (9) directed perpendicular to the centre axis (8) of the roll.
References Cited (Backward Citations)
US3789947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |