Non-pneumatic tire

Patent metadata

Field	Value
Publication number	US-2016272006-A1
Application number	US-201415033942-A
Country	US
Kind code	A1
Filing date	Oct 24, 2014
Priority date	Nov 15, 2013
Publication date	Sep 22, 2016
Grant date	—

Abstract

Provided is a non-pneumatic tire in which a plurality of curved sectionss ( 21 d ) to ( 21 f ) and ( 22 d ) to ( 22 f ) curved inward in a tire circumferential direction are formed at elastic connecting plates ( 21 ) and ( 22 ) in an extension direction in which the elastic connecting plates ( 21 ) and ( 22 ) extend when seen in a tire side view such that curved directions are alternately opposite to each other in the extension direction, outer curved sections ( 21 e ) and ( 22 e ), inner curved sections ( 21 d ) and ( 22 d ), and extension sections ( 21 i ) ( 22 i ) extending throughout both of the curved sections and in which inflection sections ( 21 g ) and ( 22 g ) formed between both of the curved sections are disposed, are formed at the elastic connecting plates ( 21 ) and ( 22 ), and the extension sections ( 21 i ) and ( 22 i ) extend along reference lines having radii of curvature larger than that of the outer curved sections ( 21 e ) and ( 22 e ) and the inner curved sections ( 21 d ) and ( 22 d ) when seen in the tire side view and extend from first end portions ( 21 a ) and ( 22 a ) of the elastic connecting plates ( 21 ) and ( 22 ) connected to an outer tubular body ( 13 ) to arrive at a central portion in at least the extension direction.

First claim

What is claimed is:

1 . A non-pneumatic tire comprising:
an attachment body attached to an axle; an outer tubular body configured to surround the attachment body from the outside in a tire radial direction; and connecting members configured to connect the attachment body and the outer tubular body while allowing a displacement therebetween, the connecting members comprising elastic connecting plates having both ends connected to the attachment body and the outer tubular body and extending from the outer tubular body in a tire circumferential direction toward the inside in the tire radial direction; wherein a plurality of curved sections curved in the tire circumferential direction are formed at the elastic connecting plates in an extension direction in which the elastic connecting plates extend in a tire side view when the non-pneumatic tire is seen from a tire width direction such that curved directions are alternately opposite with each other in the extension direction; outer curved sections disposed closest to the outer tubular body side in the extension direction and inner curved sections neighboring the outer curved sections in the extension direction among the plurality of curved sections, and extension sections extending throughout all of the curved sections and in which inflection sections formed between all of the curved sections are disposed, are formed at the elastic connecting plates; and the extension sections extends along reference lines having a radii of curvature larger than that of the outer curved sections and the inner curved sections in the tire side view, and extend from first end portions of the elastic connecting plates connected to the outer tubular body to arrive at a central portion in at least the extension direction.

2 . The non-pneumatic tire according to claim 1 , wherein lateral cross-sectional areas of the inflection sections are smaller than a lateral cross-sectional area of other portions of the elastic connecting plates.

3 . The non-pneumatic tire according to claim 2 , wherein the lateral cross-sectional areas of the elastic connecting plates are gradually reduced toward the inflection sections in the extension direction.

4 . The non-pneumatic tire according to claim 2 , wherein at least one of sizes in the tire width direction and sizes in the tire circumferential direction of the inflection sections in the elastic connecting plates are smaller than other portions.

5 . The non-pneumatic tire according to claim 3 , wherein at least one of sizes in the tire width direction and sizes in the tire circumferential direction of the inflection sections in the elastic connecting plates are smaller than other portions.

Assignees

• Bridgestone Corp

Inventors

• Abe Akihiko

Classifications

• B60B9/26

  comprising resilient spokes · CPC title

• B60B5/02

  made of synthetic material · CPC title

• B60C7/14

  using springs · CPC title

• B60B2360/30

  Synthetic materials · CPC title

• B60B9/08

  in flat coiled form · CPC title