초록 ▼

A backrest for use with devices having cycle-type seats mounted on support posts, such as exercise machines, bicycles, tricycles, stools and the like, in which the back support is pivotally attached to a support frame and the support frame is selectably adjustable in height and in angle with respect

A backrest for use with devices having cycle-type seats mounted on support posts, such as exercise machines, bicycles, tricycles, stools and the like, in which the back support is pivotally attached to a support frame and the support frame is selectably adjustable in height and in angle with respect to the seat of said machine. The support frame is adjustably secured to a yoke which in turn is clamped to the support post of the seat.

대표청구항 ▼

An adjustable backrest for a cycle-type seat mounted on a support post, said backrest comprising: a yoke including clamping means for clamping said yoke to the post, said yoke having opposed flanges opposite said clamping means; a support frame; a back support; pivot means for pivotally attaching sa

An adjustable backrest for a cycle-type seat mounted on a support post, said backrest comprising: a yoke including clamping means for clamping said yoke to the post, said yoke having opposed flanges opposite said clamping means; a support frame; a back support; pivot means for pivotally attaching said back support to said frame; and adjustment means for selectably securing said support frame to said yoke to adjustably fix the height and angle of said back support with respect to said yoke; said adjustment means including a pair of apertures in each of said flanges and a plurality of pairs of apertures in said support frame alignable with said apertures in said flanges for selectably adjusting the height of said back support with respect to said yoke, and locking means for locking said aligned apertures in alignment.