# US 10,117,796 B2 · Hand rim

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- Number: US 10,117,796 B2
- Document ID: US10117796B2
- Status: Granted
- Kind: B2
- Application number: 15/413,126
- Filed: 2017-01-23
- Published: 2017-10-26
- Granted: 2018-11-06
- Earliest claimed: 2016-04-21
- Assignees: Honda Motor Co., Ltd.; Honda R&D Sun Co., Ltd.
- Applicants: Honda Motor Co., Ltd.; Honda R&D Sun Co., Ltd.
- Inventors: Akihiko Koshido; Takayuki Nodomi; Junji Takado; Norifumi Naono
- Web page: https://patentgrep.com/patent/US10117796B2

## CPC

- A61G 5/022: {acting on wheels, e.g. on tires or hand rims}
- A61G 5/028: {Special adaptations or provisions on hand rim, e.g. for facilitating gripping}
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)

## Abstract

Provided is a hand rim which is not slippery even when the surface is wet. A hand rim 7 includes a base material 70 and an anti-slippage layer 71 formed on the surface of the base material 70. The anti-slippage layer 71 includes an adhesive layer 71a formed on the surface of the base material 70 and particles 71b which are fixed through the adhesive layer 71a. The particles 71b are fixed so as to protrude from the adhesive layer 71a.

## Claims

### Claim 1

A hand rim for a wheelchair provided at a drive wheel comprising:
an annular base material, and
an anti-slippage layer formed on a surface of the base material,
wherein the anti-slippage layer includes an adhesive layer formed on the surface of the base material and particles fixed through the adhesive layer,
wherein the particles are fixed so as to protrude from the adhesive layer, and
wherein a thickness of the adhesive layer is equal to or less than a half of an average particle diameter of the particles.

### Claim 2 (depends on 1)

The hand rim according to claim 1,
wherein the anti-slippage layer is formed on a peripheral surface of the base material only in a region which is an opposite side of the drive wheel when being attached to the drive wheel and in a region of inner peripheral side.

### Claim 3 (depends on 1)

The hand rim according to claim 1, wherein the particles are plant-based particles, and wherein a content of oil and fat in the particles is equal to or less than 0.4%.

### Claim 4 (depends on 1)

The hand rim according to claim 1, wherein an occupancy area of a region in which the particles exist with respect to a surface of the anti-slippage layer is equal to or more than 80%.