GB1301940A - - Google Patents
Info
- Publication number
- GB1301940A GB1301940A GB1301940DA GB1301940A GB 1301940 A GB1301940 A GB 1301940A GB 1301940D A GB1301940D A GB 1301940DA GB 1301940 A GB1301940 A GB 1301940A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- face
- ground
- rolling
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
- B60B19/14—Ball-type wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
1301940 Wheels R B BUCKNELL 15 July 1971 [23 July 1970] 35750/70 Heading B7C A wheel comprises a first rolling portion and a second rolling portion of greater diameter and smaller surface area than the first portion, such that in use of the wheel on hard ground the second portion only contacts the ground whereas on soft ground both the second portion and at least part of the first portion contact the ground, the wheel thus providing little rolling resistance on hard ground whilst also providing a ground contacting area of larger size on soft ground to minimize sinking of the wheel. The wheel may comprise a hollow shell 1, consisting of a first rolling, portion 5 and a second rolling portion 4, protruding radially outwardly slightly beyond the first portion 5, of substantially cylindrical form with a circular end face 2, the first portion 5 tapering from the second portion to a smaller end with a substantially circular face 3, the second portion 4 being of thicker shell material and of greater rigidity than the first portion 5, the latter being resiliently flexible. The circular face 2 is formed with corrugations 6 radiating from the centre to form ribs or spokes 8, the corrugations increasing in depth and breadth towards the periphery of the face, the ribs serving to strengthen and enhance the rigidity of the second portion 4, and the face 3 is formed with corrugations 9 which radiate from the centre and decrease in depth towards the periphery of the face. Apertures are formed one at the centre of each of the faces 2, 3 and a plastics tube 12 extends between the apertures sealing the shell and providing a sleeve for an axle. The shell may be made from plastics using a rotary moulding technique. The wheel is buoyant and may be used, for example, on a boat launching trolley.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3575070 | 1970-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1301940A true GB1301940A (en) | 1973-01-04 |
Family
ID=10381167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1301940D Expired GB1301940A (en) | 1970-07-23 | 1970-07-23 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1301940A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2302870A1 (en) * | 1975-03-05 | 1976-10-01 | Dyson Designs | GROUND CONTACT ELEMENTS FOR MOBILE DEVICES |
US4305621A (en) * | 1978-05-31 | 1981-12-15 | Snell Thomas B | Vehicle wheels |
WO1982002364A1 (en) * | 1981-01-12 | 1982-07-22 | Benassi Sergio | Wheels and tyres for water-borne craft |
-
1970
- 1970-07-23 GB GB1301940D patent/GB1301940A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2302870A1 (en) * | 1975-03-05 | 1976-10-01 | Dyson Designs | GROUND CONTACT ELEMENTS FOR MOBILE DEVICES |
US4305621A (en) * | 1978-05-31 | 1981-12-15 | Snell Thomas B | Vehicle wheels |
WO1982002364A1 (en) * | 1981-01-12 | 1982-07-22 | Benassi Sergio | Wheels and tyres for water-borne craft |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |