US2069454A

US2069454A - Bicycle pedal

Info

Publication number: US2069454A
Application number: US13498A
Authority: US
Inventors: Bror M Lofquist; Sixten J Olson
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-03-28
Filing date: 1935-03-28
Publication date: 1937-02-02
Anticipated expiration: 1954-02-02

Description

v 1937- B. M. LOFQUIST ET AL 2,069,454

BICYCLE PEDAL Filed March 28, 1935 Patented Feb. 2, 1937 UNITED STATES PATENT OFFICE BICYCLE PEDAL Application March 28, 1935, Serial No. 13,498

1 Claim.

This invention relates to a pedal designed for use on bicycles.

It is the general object of our invention to pro, vide an improved pedal for such purposes, so de- 5 signed that the foot of the user will be adequately supported by extended surfaces.

Further objects of our invention are to provide a pedal in which the toe portion has limited angular adjustment relative to the supporting frame, and in which the pedal as a whole assumes a predetermined and convenient angular position when left free to move.

Our invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claim.

A preferred form of the invention is shown in the drawing, in which Fig. 1 is a plan view of our improved pedal, and Fig. 2 is a side elevation thereof, looking in the direction of the arrow 2 in Fig. 1.

Referring to the drawing, our improved pedal comprises a pair of sheet metal frame members It and H secured to a hub portion l2 which is pivotally supported by anti-friction bearings on a pedal stud M, which stud is mounted on the end of a crank arm IE or is otherwise suitably supported.

A heel block 20, preferably of hard rubber or other similar material, is secured between the side frame members l0 and H at one side of the hub l2 by clamping bolts 2! and 22. A toe block 30, also preferably of hard rubber or similar material, is pivotally mounted on a stud 3| extending between the side frame members l0 and H and held from axial displacement relative thereto.

The toe block 30 is provided with a stud 32 mounted in a transverse hole in the block and. having reduced end portions 33 which extend outward through segmental slots 34 in the side frame members l0 and II.

It is desirable that the pedal assume the slightly inclined position indicated in Fig. 2 when left free to swing, and for this purpose the parts are so designed that the heel block 20 and its supporting structure will slightly overbalance the toe block 30 and its associated parts. It is desired, however, that the overbalancing effect shall be only slight, and for this reason the toe block 30 50 is widened and also increased in thickness to partially offset the greater effective radius of the heel block 20.

To accommodate this construction, the side frame members l0 and II are spaced apart to receive the relatively wide toe block 30 and are offset inward at the rear of the hub l2 to engage the heel block 20, as clearly shown in Fig. 1.

A pedal thus constructed possesses obvious advantages when in use. The heel and toe blocks both present a substantial surface area to the 10 foot of the user, and the toe block having limited angular movement, readily adjusts itself to the most convenient position for the shoe of the user. The stud 32 cooperates with the segmental slots 34 to prevent excessive angular displacement of 15 the block 30.

Having thus described our invention and the advantages thereof, we do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claim, but what we claim is:- 20

A bicycle pedal comprising a hub portion, sheet metal side frame members secured thereto and having their rear portions offset inward, a thick and heavy heel block substantially equivalent in area to a mans shoe heel, said block being posi- 25 tioned between said offset rear side frame portions, a pair of spaced bolts extending through said block and said side frame members and securing said block in fixed position between said frame members, a toe block at least equal in area 30 to said heel block but being wider, thicker and heavier than said heel block and having a front end portion extending forward beyond the ends of said side frame members, a bolt extending through said side frame members near their 35 front ends and through said toe block near the center of I its length and affording a pivotal bearing for said toe block, and a stud fixed in said toe block substantially rearwardly from said bolt and extending into short segmental slots in said side frame members, said stud thereby limiting rocking movement of said toe block, and said heel block being at a greater distance from the hub axis than the toe block, and thereby slightly overbalancing the toe block and maintaining said pedal in a predetermined inclined position when idle.

BROR M. LOFQUIST. SIXTEN J. OLSON.