Slider mechanism
US4650145A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Oct 7, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7066
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-locking slider mechanism for holding telescoping relatively-movable inner and outer tubular members in adjusted lengthwise position and which requires a greater force manually applied lengthwise of the members to decrease the over-all length of the members than to increase the over-all length thereof. The members can be used as a stand to provide a load-carrying capacity for the stand while still enabling adjustment of stand height with minimal effort. The slider mechanism has a body member attached to one tubular member and having an internal recess extending lengthwise thereof and opening to one side of the body with an inclined ramp plate mounted within the recess and associated with a ramp member movable therealong and which has a friction member engageable with the other tubular member. A plurality of compression springs are associated with the ramp plate and the ramp member and the ramp plate is inclined whereby a force tending to lower the height of the stand as by a load carried by the stand is reacted against relatively stiff compression springs associated with the ramp plate. A force tending to increase the over-all length of the tubular members is resisted by a le…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.