Patent DE3707567A1 successfully refreshed from Google Patents.
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US20120060991A1
Active / In Force
US
⏱️ 4.9 years remaining
Airless tire
Assignee: Hankook Tire and Technology Co Ltd
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Filing: 2011-09-08
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Granted: —
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Expires: 2031-09-08
Abstract
Abstract Disclosed herein is an airless are which absorbs shock and holds pressure applied to the tire through an auxetic spoke buffer without using air pressure. The airless tire includes a cylindrical tread being in contact with the ground, an axle fixing section having a smaller circumference than the tread and disposed inside the tread, and an auxetic spoke buffer connecting the tread and the axle fixing section and providing a buffering function. Accordingly, the airless tire is transformed only to an extent to properly function as a fire when the spoke buffer is transformed by pressure or impact and fully returns to an original shape when pressure or impact is removed.
Inventors
- 👤 Dal Yong MUN
- 👤 Hak Joo KIM
- 👤 Seok Ju CHOI
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:10
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/10; B60C7/14; B60C7/16; B60C7/18; B60C7/107
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
142 words
1 . An airless tire including a cylindrical tread in contact with a ground, an axle fixing section having a smaller circumference than the tread and disposed as an inside concentric circle of the tread, and a spoke buffer connecting the tread and the axle fixing section and providing a buffering function, wherein the spoke buffer comprises a plurality of radial walls extending from the tread to the axle fixing section, including a plurality of protrusions and radially arranged; and a plurality of connecting walls disposed between the radial walls to connect the radial walls, the connecting walls connecting portions of the protrusions formed on the radial walls to face opposite sides, the spoke buffer having an auxetic structure including a plurality of spaces formed by the radial walls and the connecting walls and connecting the tread and the axle fixing section.
Claim 2
Dependent Claim
142 words
1 . An airless tire including a cylindrical tread in contact with a ground, an axle fixing section having a smaller circumference than the tread and disposed as an inside concentric circle of the tread, and a spoke buffer connecting the tread and the axle fixing section and providing a buffering function, wherein the spoke buffer comprises a plurality of radial walls extending from the tread to the axle fixing section, including a plurality of protrusions and radially arranged; and a plurality of connecting walls disposed between the radial walls to connect the radial walls, the connecting walls connecting portions of the protrusions formed on the radial walls to face opposite sides, the spoke buffer having an auxetic structure including a plurality of spaces formed by the radial walls and the connecting walls and connecting the tread and the axle fixing section.
Claim 3
Dependent Claim
34 words
2 . The airless tire according to claim 1 , wherein the radial walls comprise a plurality of protrusions projecting to a left side or a plurality of protrusions projecting to a right side.
Claim 4
Dependent Claim
32 words
3 . The airless tire according to claim 1 , wherein the portions of the protrusions formed on the radial walls to face the opposite sides are connected by the connecting walls.
Claim 5
Dependent Claim
20 words
4 . The airless tire according to claim 1 , wherein the connecting walls connect highest points of the protrusions.
Claim 6
Dependent Claim
22 words
5 . The airless tire according to claim 1 , wherein the plurality of connecting walls is arranged in a circular shape.
Claim 7
Dependent Claim
40 words
6 . The airless tire according to claim 1 , wherein a plurality of radial walls is formed to constitute steps from the tread to the axle fixing section, and the radial walls in the respective steps form staggered arrangement.
Claim 8
Dependent Claim
52 words
7 . The airless tire according to claim 1 , wherein a plurality of radial walls is formed to constitute steps from the tread to the axle fixing section, and a cylindrical step defining connecting body having a smaller circumference than the tread is disposed between the steps of the radial walls.
Claim 9
Dependent Claim
23 words
8 . The airless tire according to claim 1 , wherein the protrusions of the radial walls have a “<” or “>” shape.
Claim 10
Dependent Claim
38 words
9 . The airless tire according to claim 8 , wherein an angle between a vertical line and an extension line for forming the protrusions of the radial walls is in the range of 15 to 53 degrees.
Claim 11
Dependent Claim
95 words
10 . The airless tire of claim 1 , wherein the radial walls are divided into a first radial wall and a second radial wall, the first radial wall comprising a plurality of right protrusions projecting to a right side and a left protrusion projecting to a left side between the right protrusions, the second radial wall comprising a plurality of left protrusions projecting to the left side and a right protrusion projecting to the right side between the left protrusions, the first radial walls and the second radial walls being alternately and radially arranged.
Claim 12
Dependent Claim
70 words
11 . The airless tire according to claim 1 , wherein the connecting walls are divided into a first connecting wall and a second connecting wall, the first connecting wall connecting a right protrusion of a first radial wall and a left protrusion of a second radial wall, the second connecting wall connecting a left protrusion of the first radial wall and a right protrusion of the second radial wall.
References Cited (Backward Citations)
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