Strap type drawer interlock structure
US5176436A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B65/466
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drawer interlock structure having a channel-like plural station frame supporting at each station a cam on one side of the frame and an operably connected slider movable by the cam on the other side of the frame. A trip pin is attached to each drawer and is located in the opening and closing of each drawer to operably engage the cam. As the cam moves and the slider is displaced a taut strap of flexible material is displaced against a spring force at opening of any one drawer and the spring is limited in its extension by a blocker whereby no other drawers can be opened until closure of the one opened drawer and whereby simultaneous movement of plural drawers are blocked by the limitedly blocked spring loaded strap. The withdrawal of the slider from a positive block against the cam is prevented until the single opened drawer is closed. Simple locking of the structure is by means of a lock device disabling any movement of the strap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.