Non-pneumatic tire

Patent metadata

Field	Value
Publication number	US-11518188-B2
Application number	US-201816637289-A
Country	US
Kind code	B2
Filing date	Jul 2, 2018
Priority date	Aug 9, 2017
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

This non-pneumatic tire is provided with a tread ring, a wheel which is arranged radially inside of the tread ring, and spokes which are interposed between the tread ring and the wheel. Further, the wheel has a disc part to which the vehicle shaft is linked, and a rim part which is connected on the inner peripheral side to the disc part and is joined on the outer peripheral side to the spokes. In this configuration, the average thickness (T 1 ) of the disc part is set to be less than the average thickness (T 2 ) of the rim part. In other words, the relation T 1 <T 2 holds.

First claim

The invention claimed is:

1. A non-pneumatic tire and wheel assembly comprising a tread part with a cylindrical shape that is in contact with a ground surface, a wheel part disposed inside the tread part in a radial direction, and a spoke part interposed between the tread part and the wheel part, wherein:
the wheel part includes a disk part to which an axle is connected, and a rim part whose inner circumferential side is continuously connected to the disk part and outer circumferential side is joined to the spoke part;
the thickness of the rim part is substantially constant;
an average thickness of the disk part is smaller than an average thickness of the rim part;
the thickness of the disk part decreases by tapering radially outwards from a center portion of the disk part; and
the disk part is continuously convex from the center portion to the rim part.

2. The non-pneumatic tire and wheel assembly according to claim 1 , wherein the spoke part includes an internal ring part to which the rim part is joined, an external ring part for which the tread part is provided, and a plurality of spokes that integrally connect the internal ring part and the external ring part.

3. The non-pneumatic tire and wheel assembly according to claim 1 , wherein in the wheel part, the disk part and the rim part are provided as separate members and are joined to each other.

4. The non-pneumatic tire and wheel assembly according to claim 1 , wherein the wheel part is formed by a single member that integrally includes the disk part and the rim part.

5. A non-pneumatic tire and wheel assembly comprising a tread part with a cylindrical shape that is in contact with a ground surface, a wheel part disposed inside the tread part in a radial direction, and a spoke part interposed between the tread part and the wheel part, wherein:
the wheel part includes a disk part to which an axle is connected, and a rim part whose inner circumferential side is continuously connected to the disk part and outer circumferential side is joined to the spoke part;
the thickness of the rim part is substantially constant;
an average thickness of the disk part is smaller than an average thickness of the rim part;
the disk part comprises a bend in a rotating direction that receives a compressive bending force in a circumferential direction;
the thickness of the disk part decreases by tapering radially outwards from a center portion of the disk part; and
the disk part is continuously convex from the center portion to the rim part.

Assignees

• Honda Motor Co Ltd

Inventors

• Kashiwai Mikio
• Kambara Nobuo
• Hirano Atsushi

Classifications

• B60B3/04

  with a single disc body not integral with rim {, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding} · CPC title

• B60B23/00

  Attaching rim to wheel body (attaching spokes to rim B60B1/04, B60B1/14; attaching rims resiliently to wheel body B60B9/00 {; devices for fastening or securing constructional elements or machine parts together F16B}) · CPC title

• B60B21/02

  characterised by transverse section · CPC title

• B60B9/02

  using springs {resiliently mounted bicycle rims}(wheels comprising resilient spokes B60B9/26) · CPC title

• B60C7/146

  extending substantially radially, e.g. like spokes · CPC title