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US 4,437,411 AGranted
Multi-position student table
AssigneeGeneral Equipment Manufacturers
InventorRonald M. Maxwell
Life of this patent
Estimating the term…
Abstract
A multi-purpose table is adapted for use in schools, and particularly in science or art labs, as a desk or laboratory table. The top of the table may be adjusted in height either to a sitting height or to a standing height. The top may also be placed in either horizontal or sloping position at either adjusted height.
Claims13
Apparatus for rigidly positioning a top panel at a first or a second height comprising:
- a base;
- first engagement members secured to said base;
- a top panel providing a work surface adapted to be positioned at one of said heights relative to said base;
- first and second side supports hingedly mounted to said base in spaced relation and movable between a first storage position in which said supports lie flat within said base and said top panel is supported by said base, and a second position in which said supports are raised and said top panel is supported by said first and second support means at a height above said first position;
- brace means for rigidly securing said first and second support means in said raised position;
- and manual latch means comprising a reciprocable latch member slidably carried on the under surface of said top panel and manually moveable between a latch position and a release position for rigidly securing said top panel to said base at said first height by coupling to said first engagement members when said side supports are placed in said storage position and for rigidly securing said top panel to said side supports when the same are placed in said second position and said latch member is in said latch position.
3 more elements
A multi-position table comprising:
- a base of generally rectangular shape and in the form of an open-top box;
- leg means for supporting said base on a floor;
- a top adapted to be positioned relative to said base above the open top thereof;
- a latch bar carrying latch means mounted to said top for reciprocable movement between latched and unlatched positions;
- first engagement means attached to said base and engageable by said latch means when said top is placed directly on said base and said latch bar is moved to said latched position to thereby firmly secure said top to said base in a first, lowered horizontal position;
- a pair of first support members hinged to said base and moveable between a storage position within said base, and a raised position, said first support members defining inclined upper support surfaces in the raised position to support said top in a second, lowered inclined position;
- said first support members including second engagement means engageable by said latch means members when said bar is in said latched position to secure said top to said first support members in said second position;
- a pair of second support members hinged to said base and moveable between a storage position within said base and a raised position above the raised position of said first support members, and including third engagement means engageable by said latch means when said bar is in said latch position and said second support members are in said raised position to secure said top to said second support members in a third position at a height elevated above said base;
- and leaf spring means secured to said base and including releasable coupling means for releasably holding said second support means in said raised position.
6 more elements
Dependencies are inferred from the claim text.