Patent · US Active

Wheelchair comprising wheel axle and hub

US9795523B2 · kind B2 · utility

2Cited by

10References

15Claims

0Family size

Assignee

PERMOBIL AB · SE

Inventors

Göran Holst · Sundsvall, SE
Richard Ronngardh · Sundsvall, SE

Key dates

Filing date	Jul 5, 2016
Grant date	Oct 24, 2017
Priority date	—
Expiry date	Jul 5, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60Y2200/84
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The present disclosure relates to a wheelchair comprising a wheel axle (1) having a wheel axle end portion (9) and hub (3) having a central through-opening (11) arranged to receive the wheel axle end portion (9). The wheel axle end portion (9) has an external surface having three chamfered faces (3a, 3b), each chamfered face (3a, 3b) defining a planar surface, and the hub (3) has inner walls (13a, 13b, 13c) defining the central through-opening (11). The inner walls (13a, 13b, 13c) are arranged to engage with the chamfered faces (3a, 3b) of the wheel axle end portion (9) to prevent relative rotation between the hub (3) and the wheel axle (1).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.