Platform device with releasable supporting legs

Details Platform device with releasable supporting legs Platform device with releasable supporting legs

1990-10-05

1991-12-24

Dorner, Kenneth J.

Horizontally supported planar surfaces

With separable components

Independent legs support surface

248188, 403 16, 403374, A47B 306

Patent

active

050742248

ABSTRACT:
A platform trestle or device for use in the construction of stages, tribunes and the like, including a rectangular frame supporting a platform, and operatively releasable support legs which can be inserted and clamped into place in mounting spaces within mounting elements which are fixedly arranged at the corners of the rectangular frame. In order to facilitate the attachment of the support legs to the mounting elements during assembly of the platform device, and to increase the seating stability of the support legs, each of the mounting spaces is fashioned as a wedge-shaped chamber which tapers toward the platform. Each wedge chamber is defined by a pair of adjoining vertical sides and pair of adjoining inclined sides, with each of the inclined sides being inclined with respect to its adjoining inclined side and at least one of the vertical sides. A sliding wedge is arranged in contact with both inclined sides and in a mounting space between the inclined sides and the support leg within each mounting element, and an unlocking device for lifting each mounting element off of the sliding wedge associated therewith is arranged at each mounting element location.

REFERENCES:
patent: 2954638 (1960-10-01), Motter
patent: 4011821 (1977-03-01), Neal
patent: 4848245 (1989-07-01), Piretti
patent: 4852837 (1989-08-01), Merten et al.

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