US 3,937,413 AGranted

Dual frame rocker trailer

OwnerJoseph C. Devineinventor

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Abstract

A dual frame trailer for the carrying of cable reels is specifically advantageous in that it may carry large weights on a simple structure and may be manually loaded. The trailer structure comprises: (a) an axle between a set of wheels; (b) a main frame comprising: (1) a wishbone or yoke shaped structure comprising two rails parallel at their rear extremities and converging and joined at their forward extremities and normally being in an approximately horizontal plane; (2) stationary upright members depending upwardly from each of said rear extremities, each having (3) a reel bar mounting means attached at each upper end of the stationary upright support member, each support member further characterized as having an aperture for the accommodation of a pin at a point lower than reel bar support, and (4) braces each extending from the upper part of the reel bar support to said rail to form a triangle with said support and the main frame being pivotally attached at each rear extremity to opposite ends of the axle, and (c) a rocker frame comprising a pair of identically shaped frames lying in parallel vertical planes opposing one another and connected by means of bracing rails and each identically shaped frame pivotally attached at one angle to said axle in opposing relationship to one another at each end of said axle and each pair of identically shaped frames having reel bar support means at opposing ends of each identical frame, the upper most rail of each of the identical frames having an aperture for the accommodation of a pin for connecting to the main frame when the aperture is in alignment with a corresponding aperture in each of the support members of the main frame.

A dual frame rocker trailer for the carrying of cable reels supported by reel bars, of varying size and weight comprising:

A. a main frame having an attached set of wheels and comprising;
(i) a yoke-shaped structure comprising two rails parallel at their rear extremities and converging and joined at their forward extremities and being in a substantially horizontal plane;
(ii) stationary upright members depending upwardly from each of said rear extremities, each having (iii) a reel bar mounting means attached at each upper end of the stationary upright support member;
and
B. a rocker frame comprising a pair of connected, substantially triangular-shaped rail frames lying in parallel vertical planes and opposing and parallel to one another;
pin means pivotally connecting an angled portion of each of said triangular -shaped rail frames to said main frame at or near the locations where said stationary upright members depend upwardly from each of said extremities, and each of said substantially triangular-shaped rail frames having reel bar support means at opposing ends and further characterized in that each stationary upright support member of the main frame has an aperture at a point lower than the reel bar support, and the rail opposite said angled portion of pivotal attachment of each of the substantially triangularshaped rail frames further characterized as having a plurality of apertures;
said dual frame rocker trailer further including pins for attaching said rocker frame to said main frame in a plurality of positions by passing said pin through each of the apertures of the upright support members and through an aperture of the rail opposite the angled portion of pivotal attachment of the substantially triangular-shaped rail frame, and said main frame further may be disconnected from said rocker frame and said rocker frame tipped forward or backward so that the reel bar mounting means at each upper end of said stationary upright support member becomes aligned in a level position with a respective rail opposite the angled portion of pivotal attachment of said rocker frame for the receiving of a cable reel bar in loading.

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Abstract

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