US1101082A - Spring-wheel. - Google Patents

Description

G. KHYN & G. ZAHN.

SPRING WHEEL. APPLICATION FILED MAB. 27, 1914.

Patented June 23, 1914.

Hmvmumr lowing is a specification.

the illustrated embodiment nl the invention.

bodyingthe present invention, with the web some parts to show the interior mechanism;

.CHARLES AND kGEORGE ZAHN, OF RCCHESTER. NEW YORK.

SPRING-WHEEL.

,iatna'ieel Specification of Letters Patent.

Patented .l une 23, 1914.

Application led March 2'?` 1914. Serial No. 827,589.

[o all whom 'it may concern l l Be it known that we, Cuantas Kin-IN and f GEORGE ZAHN, citizens of the United States, and residents of Rochester. in the county ot Monroe and State ot New York, have invented certain new and useful Improvements in SpringVheels, oi which the toli i i i l This invention relates to vehicle-wheels ot i the type in which the hub and the rim are i connected by means having provision for a spring-controlled yieldingmovement to compensate for inequalities in the road sin-tace, or in the driving force applied to the wheel.

One object of the invention is to pro-- duce a wheel. of the type in question, ini which springs and sliding-joints are cmployed in such a manner as to permit limited relative movement between the rim and the hub of the wheel in all directions in tbel planeet the wheel, while confining' the parts rigidly against relative movement in other directions. i

Another object oli the invention is to soi arrange the sliding joints between vthe relatively movable members oi" the wheel as to t minimize or prevent the entrance ot foreign substances, and to assist the lubricatiim oi the joints.

To the foregoing ends .we employ a construction in which a metal web. carrying;` the rinroi the wheel, is arranged to slide, in all directional in the plane oi' the wheel, between two plates projecting trom the hub of the. wheel, and in which both the web and the plates are provided with spring-receiving recesses, these recesses. in on(` oi' said members, beingr substantially radial. and in tbe z other of said members substantiall)Y concentric with the wheel. The springs in the several recesses are interconnectod. b v means in the form of slides n'iovable in the recesses and articulated together in such a manner as to control the relative movements ot the wheelmembers throughtheir engagement with the springs.

Other objects of the invention. and the features of construction by which they are attained, will be pointed out hereinafter in connection with the followingT descr-nation ot' In the accompanying drawings:-Figmre 11s a partial side-elevation of a wheel emand one of the side-plates broken away in Fig. Qis a vertical section on the line 2-2 in Fig. lg'ltig. 3 is a partial section on the line EV 1:5 in Fig. 1; and Fig'. 4- is a perspective view oi one of the sets of connectingslides.

The illustrated en'ibodin'ient oi the invention is a wheel comprising' a web 5 arranged to slide between two side-plates (i and 7. The plate (3 projects integrally from the hub S of the wheel, while theplate 'i' is centered on and keyed to the hub, 'and is held in position, parallel to the plate 6, by means of bolts 10, the necessary space between the plates being;` secured by bosses .11, on their inner surfaces, surrolmdinglthe bolts as shown in Fig. 23. The inner surfaces oi the plates, at their peripheral portions, are provided with tacinpgs l2 of iiber or other suitable material, to improveA the bearing between the plates and the web 5. rIhe space between the plates is such that. they tit closelia gainst the web, but permit it to slide freely between them in all directions, either radial or rotative. The web is illustrated as provided with a solid rim 13, but it will be understood that this rim `may either support or be replaced by a 're-holding rim oi any required l'orm, to' permit the employment of pneumatic or other suitable tires. The relativemovements ot the web and the plates are controlled by means of springs and slides. A series ot radially disposed slides 'I4 are mounted in slots termed in inwardly projecting portions 15 of the web, and two springs 'lo and 1T, respectively, are disposed beta1-:en cach slide 14 and the inner and outerends 'ot' the n'respondinpr slot., the slide being recessed from its ends to afford as unich space as possible for these syn-ings. Each slide 14 is provided with two laterallyprojecting pivot-pins 1S, upon which. are pivoted two slides 19. The slides 1f) are curved longitudinally, so that they may lit into slots formed in thickened portions Q0 ot the twoplates (i and 7, these slots beiner eoncei'itric with the plates. Springs 21 and y 22, respectively, are interposed between each slide 19 and the ends of the recess 1n which it moves, the slides 19 being recessed inwardly from their ends to accommodate the` springs.

The springs and the slides just described provide connections between the plates and the web which tend to hold these parts in the relative position illustrated in Fig. 1, but permit them to have relative movement, when subjected to the stresses of use, in all directions in the plane of the wheel. It', ior

Ainove'ment of the web example, the Wheel be subjected to an upward shock against the bottom of the rim, I the web tends to move upwardly, and this l causes the loweriiiost of the springs l? to l be compressed, since the slides 19, by their engagement with the side-plates, prevent the slide 14 from moving upwardly with the. web. Similarly, all oi' the springs 17 which are below the center of the wheel are more or less compressed, but, in the case of each l of the slides 19.which is not directly beneath the axis of the wheel, there is also a certain degree of movement of these slides 19,

so as to compress, in each case, one of the springs 2l or 2:2, while in the case of any ofthe slide-members which is approximately on the horizontal diameter of the wheel, the

compression will occur wholly in the springs 2l and 22,while there will be no relative and the corresponding slide 14. In addition'to yielding, in the above-described manner, to a force to which the wheel is subjected in an radial direction, it will be apparent that inequalities in the driving motion which may be imparted to the hub of the wheelmay cause the hub and the side-plates to perform a partial rotation relatively to the web and the rim ol the wheel, this partial rotation being peri initted by compression of either the springs 22 or the springs 21, accordingr to the direcl tion of rotation, while the slides 19 move within the slots in the plates 6 and 7. g

In order to avoid looseness and rattling l in the parts, all of the springs are preterably placed under some initial compression in assembling the wheel, so that when one;

spring is compressed the opposite spring shall expand so as vto continually .till the space provided for it. The arrangement of stant compressionof the springs does not cause any. substantial increase in friction the parts is such, however, that this con- I l between the sliding members ofthe wheel.

It will be apparent that the arrangement of the' plates and the web ot the wheel is such that as the Wheel rotates the centrifugal j vforce so produced tends to throw outwardlv i any foreign substance which may findlodgment between the plates and the web, and

also tendslto prevent the entrance of such substance when the 4wheel is in use. For

the same reason any lubricating substance packed within the moving parts of the wheel will tend to flow or to be thrown outwardly,

so as to constantlylubricate the engaging surfaces between the web and the plates near the peripheries of the latter,-wliere the lateral strains are chiefly borne.

.",Or invention is not limited to the einl bodiment thereof hereinbefore described and illustrated in the accompanying drawings, i but it may be embodied in various other F 2. A s irinmwheel havinor in combination with a hub and a rim; a web fixe to one of these parts; a pair of side-plates fixed to the other part and loosely embracing the web; the web and the side-plates being provide'd, in their adjacent'surfaces, with slots arranged substantially at right-angles with each other; pivotally-connected slides located in the respective slots; and springs adapted to retain each llide normally in central position in the respective slot, the

springs being located within the slots at opposite ends of the slides.

3. A spring-wheel having, in combination with a hub and a rim; a web extending inwardly from the riin and series of substantially radial slots; a pair of side-plates extending' outwardly from thel hub, loosely embracingl the slotted part of the web and one at least of them provided with substantially concentric slotsv in its inner face; a radial slide movable in each radial slot; a slide pivoted to each radial. slide and movable in the concentric slots; and coiled the slots and engaging opposite ends of each slide.

4. A spring-wheel having, inconibination with a hub and a rim; a web extending inwardly from the rim and provided with a series of substantially radial slots and a series of intermediate outwardly-extending recesses; a pair of side-plates'extending out, wardlv from. the hub, loosely embracing .the slotted part of the web, and one, at least, of

provided with a compressionsprings located in ioo iic

them provided with substantially concentric slots in its inner face; connections between slide normally in central position in its slot.-

cHAnLEs anniv. GEORGE ZAHN.

illitnesses D. GURNEE, 4 C. WiARRoLL.

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