Assembly kit for erecting demountable frame structures

Details Assembly kit for erecting demountable frame structures Assembly kit for erecting demountable frame structures

1977-06-01

1978-05-30

Peters, Jr., Joseph F.

Land vehicles

Wheeled

Convertible

211189, 248165, 280 4718, 297440, B62B 302

Patent

active

040920321

ABSTRACT:
An assembly kit comprising primary, secondary and intermediate sub-frames of tubular material which are all telescopically connectable to each other for erecting demountable frame structures.
Each primary sub-frame has two side members and two cross members connected to the side members at positions spaced from the ends of the side members by a fixed distance. Two pairs of legs, having a length equal to the fixed distance, project respectively from the junctions of the side members and the cross members to one side of the side members.
Each secondary sub-frame has two "L"-shaped side members and two cross members connected, respectively to the junctions of the arms of the "L"-shaped side members and at positions spaced by said fixed distance from the free ends the long arms of the "L"-shaped side members. The "L"-shaped side members are of tubular material which is a sliding fit on the tubular material of each primary sub-frame and have short arms equal in length to the fixed distance.
Each intermediate sub-frame has two side members and two cross members and has similar dimensions to each primary sub-frame. However, one end portion of each side member, having a length equal to the fixed distance, is of the same size tubular material as the secondary sub-frame.
Both ends and both pairs of legs of each primary sub-frame and one end of each intermediate sub-frame are therefore telescopically engageable, over said fixed distance, with both ends of each secondary sub-frame and one end of each other intermediate frame.

REFERENCES:
patent: 1460928 (1923-07-01), Tilden
patent: 1891393 (1932-12-01), Oppenlander
patent: 2937062 (1960-05-01), Kruse
patent: 2989142 (1961-06-01), Gill
patent: 3386590 (1968-06-01), Gretz
patent: 4009762 (1977-03-01), Bjerkgard
patent: 4033537 (1977-07-01), Pridham

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