US8276628B2 — Non-pneumatic tire

Claim 1

Independent Claim 206 words

A non-pneumatic tire comprising: a spoke structure joined to an inner peripheral side of a tread ring, the spoke structure including a cylindrical outer member, a cylindrical inner member spaced coaxially from the cylindrical outer member and spokes arranged intermittently at intervals in a tire circumferential direction so as to couple the cylindrical outer member and the cylindrical inner member to each other, the spoke structure having a first side opposite a second side in a tire width direction, the cylindrical outer member having an outer peripheral side joined to the inner peripheral side of the tread ring; and a plurality of spaces each formed between adjacent two of the spokes in the tire circumferential direction and extending continuously from the first side to the second side and having a first opening on the first side with an opening size which is substantially the same as an opening size of a second opening on the second side, the spaces being structured to have further divided spaces in the tire radial direction, at least some of the further divided spaces located outermost in the tire radial direction having an air-containing structure; wherein the cylindrical outer member, the cylindrical inner member and the spokes are formed of resin.

Claim 2

Dependent Claim 206 words

A non-pneumatic tire comprising: a spoke structure joined to an inner peripheral side of a tread ring, the spoke structure including a cylindrical outer member, a cylindrical inner member spaced coaxially from the cylindrical outer member and spokes arranged intermittently at intervals in a tire circumferential direction so as to couple the cylindrical outer member and the cylindrical inner member to each other, the spoke structure having a first side opposite a second side in a tire width direction, the cylindrical outer member having an outer peripheral side joined to the inner peripheral side of the tread ring; and a plurality of spaces each formed between adjacent two of the spokes in the tire circumferential direction and extending continuously from the first side to the second side and having a first opening on the first side with an opening size which is substantially the same as an opening size of a second opening on the second side, the spaces being structured to have further divided spaces in the tire radial direction, at least some of the further divided spaces located outermost in the tire radial direction having an air-containing structure; wherein the cylindrical outer member, the cylindrical inner member and the spokes are formed of resin.

Claim 3

Dependent Claim 32 words

The non-pneumatic tire according to claim 1 , wherein the air-containing structure is obtained by forming sealing walls on the first and second sides of the spaces in the tire width direction.

Claim 4

Dependent Claim 31 words

The non-pneumatic tire according to claim 1 , wherein the air-containing structure is obtained by press fitting, into each of the some spaces, an elastic bag body having air sealed therein.

Claim 5

Dependent Claim 20 words

The non-pneumatic tire according to claim 3 , wherein the elastic bag body includes an air charging and discharging valve.

Claim 6

Dependent Claim 44 words

The non-pneumatic tire according to claim 4 , wherein the elastic bag body communicates with another elastic bag body adjacent thereto through an air charging and discharging tube, and the air charging and discharging tube is connected with the air charging and discharging valve.

Claim 7

Dependent Claim 26 words

The non-pneumatic tire according to claim 3 , wherein sealing walls are formed on both sides of the elastic bag body in the tire width direction.

Claim 8

Dependent Claim 31 words

The non-pneumatic tire according to claim 6 , wherein a cross-sectional height of each of the sealing walls is 30 to 80% of a cross-sectional height of each of the spokes.

Claim 9

Dependent Claim 53 words

The non-pneumatic tire according to claim 3 , wherein the spokes are bent so that resulting concave faces of two spokes can circumferentially face each other, and the elastic bag body is press fitted into a space between the two spokes forming these facing concave faces, the two spokes circumferentially forming a pair.

Claim 10

Dependent Claim 26 words

The non-pneumatic tire according to claim 1 , wherein an air pressure in each of the spaces containing air is set higher than an atmospheric pressure.

Claim 11

Dependent Claim 26 words

The non-pneumatic tire according to claim 9 , wherein the air pressure in each of the spaces containing air is set to 10 to 500 kPa.

Claim 12

Dependent Claim 26 words

The non-pneumatic tire according to claim 3 , wherein an air pressure in each of the spaces containing air is set higher than an atmospheric pressure.

Claim 13

Dependent Claim 26 words

The non-pneumatic tire according to claim 11 , wherein the air pressure in each of the spaces containing air is set to 10 to 500 kPa.

Claim 14

Dependent Claim 184 words

A non-pneumatic tire comprising: a spoke structure joined to an inner peripheral side of a tread ring, the spoke structure including a single cylindrical outer member having a width substantially the same as the tread ring, a single cylindrical inner member having a width substantially the same as the tread ring spaced coaxially from the cylindrical outer member and a plurality of spokes extending in a tire width direction and arranged intermittently at intervals in a tire circumferential direction, and at least two wall members extending in the tire circumferential direction and arranged in the tire width direction to define a plurality of zones extending in the tire circumferential direction, so as to couple the cylindrical outer member and the cylindrical inner member to each other, the cylindrical outer member having an outer peripheral side joined to the inner peripheral side of the tread ring; a plurality of spaces each formed between adjacent two of the spokes in the tire circumferential direction and between the at least two wall members; and an air-containing structure provided in the space between the at least two walls.

Claim 15

Dependent Claim 184 words

A non-pneumatic tire comprising: a spoke structure joined to an inner peripheral side of a tread ring, the spoke structure including a single cylindrical outer member having a width substantially the same as the tread ring, a single cylindrical inner member having a width substantially the same as the tread ring spaced coaxially from the cylindrical outer member and a plurality of spokes extending in a tire width direction and arranged intermittently at intervals in a tire circumferential direction, and at least two wall members extending in the tire circumferential direction and arranged in the tire width direction to define a plurality of zones extending in the tire circumferential direction, so as to couple the cylindrical outer member and the cylindrical inner member to each other, the cylindrical outer member having an outer peripheral side joined to the inner peripheral side of the tread ring; a plurality of spaces each formed between adjacent two of the spokes in the tire circumferential direction and between the at least two wall members; and an air-containing structure provided in the space between the at least two walls.

Claim 16

Dependent Claim 68 words

The non-pneumatic tire according to claim 13 , wherein the space between the at least two walls is further divided into a plurality of spaces in the tire circumferential direction, and a position of the spaces in a zone between the two walls is shifted, in the tire circumferential direction, from a position of the spaces in another zone thereof adjacent to the zone between the two walls.

Claim 17

Dependent Claim 30 words

The non-pneumatic tire according to claim 14 , wherein the spoke structure is divided into three zones, and at least one space in a center zone has the air-containing structures.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2015-10-02	2016-04-02	2016-10-02	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2019-10-02	2020-04-02	2020-10-02	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2023-10-02	2024-04-02	2024-10-02	$7700.00	Window Closed / Lapsed

Non-pneumatic tire

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