US669676A - Bicycle-pedal. - Google Patents

Description

No. 669,676. Patented Mar. l2,4 |901'.

\ s c. IcKEL.

BICYCLE PEDAL.

(Application led Mar. 10, 1900.) (No Modell) -lmlllllv-xul lln n-ulml Inl TH: ncnms PETERS om` PHoTaLl'n-xcrv. wAsHmGYoN, n. c,

CASPER BICKEL, OF SHLBIIRNE FALLS, MASSACHUSETTS.

BICYCLE-PEDAL.

SFECIFICATION forming part f Letters Patent N0. 669,676, dated. March 12, 1901.

. Application filed March 10, 1900. Serial No. 8,219. lNo model.)

. To @ZZ whom it may concern:

` Be it known that I, CASPER BICKEL, a citizen of the United States, residing at Shelburne Falls, in the county of Franklin and State of Massachusetts,have invented certain new and useful Improvements in Bicycle-Pedals; and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertainsto make and use the same,

My invention relates to an improvement in pedals for bicyles, the object being to provide a pedal of simplicity in construction,

whose parts can be readily assembled or taken apart, which will be secu re against accidental disarrangement when in use, and whose bearings are rendered practically dust-proof.

The invention `consists in the construction hereinafter described, and embodied specifically in the claims. t

Figure l is a plan view, partly in section, of my pedal. Fig. 2 is a side View of the spindle. Fig. 3 is a, perspective View of the locking device for the outer cone-shaped bearing and its supporting-nut. Fig. 4 is a perspective view of the outer cone-bearing detached. Fig. 5 is a plan view of the nut for the outer end of the spindle. Fig. 6 isa side view of the outer cone-shaped bearing, the jam-nut, and the intervening double-locking washeron the outer end of the spindle, the rest of the spindle being broken away.

Like numerals of reference are used to designate corresponding parts in the figures of the drawings.

In the drawings, l is a spindle on which revolves a shell 2, formed of a tubular piece of suitable material screw-threaded at its outer end. Ball-bearing cups 3 are driven into the shell, one at each end, and a ballbearing cone 4, having a screw-threaded interior, is screwed onto the outer screw-th readed end of the spindle. The other cone-shaped bearing 5 is formed as an integral part of the spindle. Antifriction-balls 6 are placed in the raceways, formed, respectively, between the cones and the cups. The ball-bearing cone 4 is provided at its outer end with circumferential notches or serrations, and like notches are made in the nut '7. As shown in Fig. 2, the spindle l is liattened at 8 by a notch being cut in screw-threaded portions thereof, and a cone-lock and nut-lock device 9 (shown in Fig. 3) is set upon this flattened part of the spindle after the cone-shaped bearing 4 has been screwed onto the spindie l and all the parts have been assembled eX- cepting the outer or jam nut 7. This conelock and nut-lock fastening 9 is preferably made of a single piece of steel, a part .10 being bent at a right angle to the vertical part l1, which latter is provided at its upper end with two teeth l2. On each side of the angle portion formed by the parts l0 and ll may be parts 13, to be placed astride of the screw-threaded end of the spindle, and thereby with the vertical part l1 serve in the nature of a washer when in use between the cone 4 and the jam-nut 7. At such time when all the parts are put togetherthe teeth l2 are turned down horizontally, one into a notch of the cone 4 and the other into a notch of the jam-nut 7, thereby locking both securely in their defined positions. This is found to be of prime importance, first securing the cone 4 from advancing on the screw-threaded portion of the spindle, and thereby jamming the balls in their inclosing cup-bearing, and also preventing said cone-bearing from receding on the screw-threaded spindle, and thereby giving too much play to the antifriction-balls. Then as a secondary feature the jam-nut 7 is safely secured against accidental displacement when the pedal is in active use. This locking device not only serves for locking both the cone-bearing and the jam-nut, but acts as a washer between the two, thus facilitating their conjoined action in providing a secure antifriction ball-bearing for a pedal. The teeth 12 may be readily relieved from engaging in the notches 14 by straightening them up, whereupon the cone may be screwed on the spindle to take up wear of the ballbearings when required or unscrewed to remove the pedal from the spindle.

I do not wish to limit my cone-locking device to any particular form of bicycle-spindle having ball-bearings and antifriction-balls, but to use the same in analogous forms of construction wherever found applicable.

The notch 8, while cut into the screw-threaded portion of the spindle, is placed inward IOO from its end to allow sufficient space thereon for receiving the jam-nut and allowing its internal screw-threads complete engagement with entire threads on the end of the spindle. It thus provides a d ust-proof construction and `at the same time a complete screw-threaded holding engagement of said parts. This pre-v vents dust passing (as it could to a greater or less extent) through a longitudinal groove extending from the extreme end of the spindle inward beyond the Washer to'the conebearing and thence possibly into the ballbearings. The jam-nut is positively locked when in use, as well as the cone-bearing part, and the construction is in keeping with the requirements of being dust-proof, compact, strong, readily adjustable, and'reliable as possible. The end of the spindle is perfectly round and not weakened or disfigured, and the notch set back or inward therefrom need not be more than one thirty-second of an inch deep, thus weakening the spindle but in slight degree and providing a construction capable of minute adjustments, (without the removal from the spindle of any of the parts,) as may often be found necessary in long-distance riding, racing, or in ordinary use.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent, is

1. A bicycle -spindle having a iiattened notch portion 8 located inward from its screwthreaded end and a locking-washer having a part l0 fitting thereon, in combination with a screw-threaded cone-bearing 4; andthe nut '7,

each provided with circumferential notches, the said washer having teeth 12 to engage in said notches, substantially as and for the purpose described.

2. A bicycle -spindle having a flattened notch at its screwthreaded' end and a locking- `washer 9, having a part 10, extending at an angle therefrom and fitting in the notch, and

CASPER BICKEL.'

signature Witnesses: y

JOHN C. WINTERHALDER, CLIFTON L. MCKNIGHT.

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