GB2079685A - A tyre - Google Patents
A tyre Download PDFInfo
- Publication number
- GB2079685A GB2079685A GB8022167A GB8022167A GB2079685A GB 2079685 A GB2079685 A GB 2079685A GB 8022167 A GB8022167 A GB 8022167A GB 8022167 A GB8022167 A GB 8022167A GB 2079685 A GB2079685 A GB 2079685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tyre
- channel
- spacing
- wheel
- combination
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
- B60C7/12—Non-inflatable or solid tyres characterised by means for increasing resiliency using enclosed chambers, e.g. gas-filled
- B60C7/125—Non-inflatable or solid tyres characterised by means for increasing resiliency using enclosed chambers, e.g. gas-filled enclosed chambers defined between rim and tread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/24—Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
A tyre, for example for a rotary mower, comprises a plurality of spacing members 15 circumferentially spaced around the mouth formed between the side walls 3, 4 of the tyre, preferably the members 15 extending from one side wall 3 to abut the other side wall 4 when the tyre is mounted on a rim, and being integral with stiffening elements 17 which extend from the side wall 3 to terminate short of the wall 4. The tyre may be mounted on a rim 13 having flanges 11, 12 received in rebates 9, 10 in the walls 3, 4. <IMAGE>
Description
SPECIFICATION
Improvements in or relating to a tyre and/or wheel
and tyre in combination
This invention relates to a tyre and/orwheel and a
tyre in combination.
It is an object of the present invention to provide a
tyre and/or a wheel and tyre in combination which
will at least provide the public with a useful choice.
Accordingly in one aspect the invention consists in
a tyre comprising an annular channel member
formed of resilient material, the mouth of said
channel opening towards the centre of the said
annular channel member, and a plurality of spacing
members between the arms of said annular channel
member, said spacing members being spaced
around said annular channel member.
In a further aspect the invention consists in a
wheel and tyre in combination, said wheel having a
pair of peripheral rims thereon forming a channel
into which parts of a tyre according to the preceding
paragraph may be positioned.
To those skilled in the art to which this invention
relates, many changes in construction and widely
differing embodiments and applications of the in
vention will suggest themselves without departing
from the scope of the invention as defined in the
appended claims. The disclosures and the descrip
tion herein are purely illustrative and are not in
tended to be in any sense limiting.
One preferred form of the invention will now be
described with reference to the accompanying draw
ings in which:
Figure 1 is a cross-sectional view of a part of a tyre
according to the invention and part of a wheel rim.
Figure2 is a cross-sectional view on "A-A" in
Figure 1.
Figure 3 is a perspective view of a tyre according
to the invention.
In the preferred form of the invention the tyre and
wheel and tyre in combination are provided as
follows.
The tyre 1 is formed from reslient material such as
rubber, synthetic rubber, TPR or a similar material in
particular of the types commonly used to form tyres.
The tyre comprises a substantially C-shaped annular
channel member2, the "C" being substantially rec
tangular in outline having arms 3 and 4 and a base 5
on which a tread 6 is formed. The arms 3 and 4
preferably have inwardly extending extensions 7
and 8 in which rebates 9 and 10 are formed into
which rims 11 and 12 of a wheel 13 may be positioned. Thus, the mouth 14 of the channel
formed by the C-shaped annulus 2 is inwardly facing
towards its own centre. In or adjacent the mouth 14 of the channel are provided a plurality of spacing
members 15 which preferably extend from one arm
such as arm 3 of the channel. The depth of each
spacing member is preferably substantially equal to
the depth of the extensions 7 and 8.The length of
each spacing member is preferably such that when a
tyre 1 is in position on a wheel 13 the free end 16 of
the spacing member 15 abuts the other arm 4 of the
channel. By way of example a tyre having an internal radius of about 9cm and external radius of about 14cm may have, for example, sixteen spacing members 15 each about 3mm thick. The spacing elements are therefore about 15cm apart in such a construction. The tyre 1 is preferably a zero pressure tyre but the invention could be used with other forms of tyre.
The tyre may be formed by core moulding techniques using an insert in a mould for a solid tyre.
The tyre 1 also includes a plurality of stiffening elements in the channel member 2 and the stiffening elements may comprise a panel or plate 17 engaged with the base 5 and arm 3. The panel or plate 17 preferably also engages the inner surface of the spacing member 15 and is preferably formed integrally with the spacing member 15. However, the panel or plate 17 does not extend to the arm 4 but stops short to leave a gap 18 thus enabling the tyre to be broken from the mould during manufacture thereof. However, the panel or plate 17 extends to cover most of the cross section of the channel. There is preferably a panel or plate 17 formed integrally with each spacing element 15 and each panel or plate is preferably equal in thickness to the thickness of the spacing element 15.The panel or plate 17 is shown in engagement with the base 5 but alternatively a gap may be left to reduce any tendency to bumping during use of the tyre.
In use, the tyre is fitted on a wheel 13 so that parts of at least the extensions 7 and 8 extend into the channel formed on the wheel 13 between the rims 11 and 12.
The tyre has been designed for example to provide a rotary mowing machine tyre but could be used to provide othertyres as required.
Thus, it can be seen that a tyre and a wheel and tyre combination are provided which in at least the preferred form of the invention has some advantages. In particular, the tyre of the invention is cushioned and flexible, that is to say, has some softness and pliability when compared to a solid tyre but retains some advantages of a solid tyre. In particular, the effect of tyre roll-off under side loads is substantially reduced if not obviated by means of the spacing members provided across the mouth of the tyre. The effect of roll-off is further reduced by the stiffening elements which both stiffen the tyre and also substantially prevent the spacing member from riding over the opposite inward extension or bead of the tyre.
1. Atyrecomprising an annular channel member formed of resiliant material, the mouth of said channel opening towards the centre of the said annular channel member, and a plurality of spacing members between the arms of said annular channel member, said spacing members being spaced around said annular channel member.
2. Atyre as claimed in claim 1 wherein said spacing members are positioned at or adjacent the mouth of said channel.
3. A tyre as claimed in either claim 1 or claim 2 wherein said spacing members extend from one arm of said channel.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (11)
1. Atyrecomprising an annular channel member formed of resiliant material, the mouth of said channel opening towards the centre of the said annular channel member, and a plurality of spacing members between the arms of said annular channel member, said spacing members being spaced around said annular channel member.
2. Atyre as claimed in claim 1 wherein said spacing members are positioned at or adjacent the mouth of said channel.
3. A tyre as claimed in either claim 1 or claim 2 wherein said spacing members extend from one arm of said channel.
4. A tyre as claimed in any one of the preceding claims wherein said channel is substantially square "C" shaped in cross section and said spacing members extend inwardly from the ends of one arm of said "C".
5. A tyre as claimed in any one of the preceding claims wherein a plurality of stiffening elements are provided in said channel.
6. A tyre as claimed in claim 5 wherein said stiffening elements are provided engaged with one sidewall and the base of said channel.
7. A tyre as claimed in claim 6 wherein each said stiffening element is continuous with a said spacing element.
8. A tyre as claimed in any one of claims 5 to 7 wherein each spacing element has a width about one fifth of the distance between a pair of adjacent spacing elements.
9. A tyre substantially as herein described with reference to the accompanying drawings.
10. A wheel and tyre in combination, said wheel having a pair of peripheral rims thereon forming a channel into which parts of a tyre according to any one of the preceding claims may be positioned.
11. A wheel and tyre in combination substantially as herein described with reference to the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8022167A GB2079685A (en) | 1980-07-07 | 1980-07-07 | A tyre |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8022167A GB2079685A (en) | 1980-07-07 | 1980-07-07 | A tyre |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2079685A true GB2079685A (en) | 1982-01-27 |
Family
ID=10514582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8022167A Withdrawn GB2079685A (en) | 1980-07-07 | 1980-07-07 | A tyre |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2079685A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9108470B2 (en) | 2008-09-29 | 2015-08-18 | Polaris Industries Inc. | Run-flat device |
US9573422B2 (en) | 2012-03-15 | 2017-02-21 | Polaris Industries Inc. | Non-pneumatic tire |
-
1980
- 1980-07-07 GB GB8022167A patent/GB2079685A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9108470B2 (en) | 2008-09-29 | 2015-08-18 | Polaris Industries Inc. | Run-flat device |
US9573422B2 (en) | 2012-03-15 | 2017-02-21 | Polaris Industries Inc. | Non-pneumatic tire |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |