Non-slip support shoe for a walking aid
US5335683A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jun 3, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45B9/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A non-slip support shoe for attachment to the end of any crutch or other walking aid comprises an attachment cylinder for attaching the shoe to the bottom of the crutch or walking aid; a pair of strip leaf springs, at least one of which is connected to the attachment cylinder; and a rubber sole provided on the bottom surface of a lower one of the strip leaf springs. In operation, when the maximum weight of a body is exerted on the crutch or walking aid, the strip leaf springs change configuration (i.e., flatten) so that the entire sole located on the lower strip leaf spring contacts the ground, thereby preventing slippage during use of the crutch or walking aid. Once the maximum weight of the body is removed, the strip leaf springs return to their original configuration so as not to interfere with the angled forward and backward positions of the crutch during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.