USRE14324E

USRE14324E - Joseph dottl

Info

Publication number: USRE14324E
Authority: US
Inventors: Joseph Dottl
Original assignee: By Mesne Assignments
Filing date: 1916-12-16
Publication date: 1917-06-26

Description

mom. I SPRING AND FfiAME SUPPORTER FOR MOTOR CARS.

" I APPLICATION FILED DEC. 16' 1916- Relssued June 26, 1917.

mnu'mw" MW J. DOTTL. SPRING ANDIFRAME SUPPORTER FDR MOTOR CARS.

APPLICATION FILED DEC.IE,19|6.

Reissued June 26, 1917.

UNITED STATES PATENT oEEIcE.

JOSEPH DO'ITL, OF MADISON, WISCONSIN, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE DOTTL MANUFACTURING COMPANY, OF MADISON, WISCONSIN, A CORPORATION OF I WISCONSIN.

SPRING AND FRAME SUPPORTER FOR MOTOR-CARS.

Specification of Reissued Letters Patent. ReiSsuQ-(l June 26, 1917.

Original No. 1,205,603, dated November 21, 1916, Serial No. 62,601, filed November 20, 1915. Application for reissue filed December 16, 1916. Serial No. 137,453.

being applicable to certain types of vehicles already in use, the device being adapted to be readily applied to vehicles and requiring no material change in the structure of the vehicle itself.

The object of the present invention is to support the weak points of a main vehicle spring so as to materially increase the carrying capacity and strength of the entire spring, preventing the frame of the vehicle from bending downwardly and shearing off the center bolt and also from shifting sidewise. The device enables the load of the vehicle to be practically doubled. prevents the main spring or springs from riding or resting on the axle housing, prevents the loaded body from swaying laterally, main:

taining the same in a substantially upright position, and also avoiding the objectionable tipping up of the front end of the body.

Incidentally the device relieves the tires and the entirecar by preventing lateral or sideswinging motion of the body especially when turning corners and traveling over rough roads. The device enables the chassis of a pleasure car to be converted into a truck for carrying a load much greater than the springs were originally designed for.

\Vith the above and other objects in View, the invention consists in the novel construction. combination and arrangement of parts, as herein described, illustrated and claimed. In the accompanying drawings, Figure 1 :is a rear elevation of sullicient part of an automobile to illustrate the application of the present invention thereto, the auxiliary spring being shown in the preferred form thereof. View of one of the auxiliary body supporting units. Fig. 3 is a detail perspective view-of the bottom spring holder or cap. Fig. 4 is a similar view of the upper cap Fig. 2 is an enlarged perspective.

tion of .the ends of the spring thereto. Fig.

6 is a rear elevation similar to Fig. 1 showing another form oi" auxiliary bodysupporting unit. Fig. 7 is a detail perspective view of the support for the lower end of the auxiliary spring. Fig. 8 is a similar view of the upper spring-holding cap with its arm forming the bolster extension. Fig. 9 is a. vertical longitudinal section through the auxiliary unit shown in Fig. 6. Fig. 10 is a. fragmentary vertical section of a modification showing means for fastening the bottom holder or cap to the spring. Fig. 11 is a detail perspective view of the holder or cap shown in Fig. 10.

Referring to the drawings 1 designates a vehicle body bolster which extends transversely of the body and is usually formed of channel iron, being provided with the longitudinal flanges 2 which extend downwardly from the top plate or main body 3 of the bolster.

4 designates one of the main body-supporting springs which is shown as of the multiple leaf type and centrally archcd nul fitted between the flanges 2 of the bolster to which it is secured by means of clips 5. The extremities ofthe spring 4 are usually connected by swinging shackles 6 to arms 7 fastened to the expanded end portions 9 of the rear axle housing 10,

All of the parts hereinabove described are of the ordinary construction and arrangement.

In carrying out the present invention in the simpler form thereof, I employ a pair of auxiliary body supporting units designated at A, A. Each body-supporting unit comprises a coiled expansion spring '11, a holder or cap 12 for the bottom end of the spring 11 and a top cap or'holder 13 for the spring 11, said cap 13 being formed with an arm 14 preferably formed integrally with the holder or cap 13 and extending substantially at a right angle to the axis of the spring 11 as clearly indicated in the drawings. The arm 14 is preferably channeled on its under side to provide the downwardly extending longitudinal flanges 15 while the top Wall. of the arm 14 is provided with a bolt hole to receive a bolt 16 by means .of

' which the arm 14 is securely fastened to a-convex lower face "stated through the cap 26 and works longituthe adjacent end of the bolster 1, the flanges 15 being arranged so as to enable them to be introduced between the flanges 2 of the bolster 1 and thus rendering it unnecessary to use more than a single bolt 16 to securethe arm of the bolster.

The arm 14' thus constitutes an extension of one end of the bolster 1.

The bottom support or holder 12 is provided on its under sidewith a lug 17 having and centrally formed with a groove 18 designed to fit over and upon the bolt 19 of a clip 20 which embraces and holds together the leaves of the main body supporting spring 4. Owing; to the fact that the spring 11 is always partly comressed, it is not ordinarily necessary to additionally fasten the supporting holder 12 to the clip 20 or the spring 1.. The holders or

caps

12 and 13 are provided in their ad jacent faces with annular grooves or seats 21 for the terminal convolutions of the coiled expansion spring 11, thus" preventing the spring from flying out of place.

In another embodiment of the invention as shown in Figs. 6 to 9 inclusive, the holder 22 for the bottom end of the spring 11 is shown as composed of'a metal strap which is bent to form a bottom connecting portion 23 and parallel upwardly extending arms 24: which are formed with slots 25 extending lengthwise thereof and substantially in a vertical direction when the unit is in place. The upper spring holder or cap 26 is provided with the arm 27 corresponding with bolster extension arm 1 1 of the preceding figures.

of the drawings and a guiding member shown in the form of a pin or bolt is dinally of the slots 25 under the action 0 the spring 29 and the weight imposed thereon. The arm 27 of the upper cap or holder is fastened to the bolster 1 in the same manner as hereinabove described and the bottom of the unit rests upon and is held in place by the bolt 19 of the spring clip '20 indicated in Fig. '6.

From the foregoing description. taken in connection with the accompanying draw- .ings' it will now be understood that the auxiliary body supporting upits are practice. .ly interposed between the extremities of the body supporting bolster and the adjacent main body supporting s ring of the vehicle. All of the load is there ore not imposed on the center of thespring 4 but a substantial portion of the load is also supported by the Spring at the points where the auxiliary units are employed. flhis not only distributes the load along the' main body supporting spring but prevents lateral tiltin of the body and therefore-the =tendency o "the machine and the load tb sway laterally, especially in making short turns and in traveling over roughroads.

with the vehicle by' merely jacking up the -A much greater load may" be carried the vehicle on account of ithe auxiliary body supporting units and' the' latter. may bequiclrly and easily associated bolster 1 and thereby relieving the weight on the spring so that the auxiliary body-supporting umts may be placed in their useful positions.

In Figs. 10 11 the bottom holder or cap 30 is shown as provided with down wardly extending arms 31 which embrace 3' the spring 4, the arms 31 being channeled at 32 to receive the-arms of the clip 20 which I i embraces the vehicle spring. Said cap or holder 30 is provided with the upstanding boss 33 to receive and hold in place the bottom portion of the spring 11. The arms 31:

are provided with holes in line with the holes of the clip 20 to receive the clipretaining bolt. The arms 31 are also preferably x tapered or made of "gradually. decreasmg" thickness toward their lower extremities so as to wedge themselves firmly between the opposite faces of the spring {1 and the inner faces of the upwardly extending-side por tions of the clip 20. I 1

Having thus described my invention, 1 v

1. The combination with a vehicle frame,

a bolster extending"transversely thereof and having parallel longitudinal flanges extend ing downwardly therefrom, and an arched q body-supporting main spring centrally sece cured to the bolster and terminally connected with the axle housing, of auxiliary bodysupporting units interposed between the bolster ends and said spring, each unit coin-'1 rising a coiled expansion spring, a holder;

for the bottom endnf said expanslonspring supported upon the. main spring, and a bolster extension arm fastened to the underside of the bolster'between the flanges'thereof and embodying a spring holding cap which fits over the upper end of said ex pansion spring.

2. A motor vehicle including an axle'hous ing having an enlarged central portion, a bolster extending longitudinally of and substantially above said axle housing, an

arched bolster-supporting main spring cen-- trally secured rigidly to the bolster and terminally connected with the axle housing, said spring being capable of'transmitting from its central portion to its end, portion substantially all stresses caused by the tendency of the holster to shift bodily laterally of the vehicle, and a'pair of auxiliary springs interposed between the end portions of said bolster and the mam s )1'1I1g whereby the main spring is prevented. r'cm riding on the enlarged central portion of the axle hous 111 under heavy loads.

3. A motor vehicle comprising an axle housing, a bolster extending longitudinally tra-l. portion wheels, means for transmitting of and substantially above said housing, a bolster supporting main spring centrally secured rigidly to the bolster and terminally connected with the axle housing, said spring being capable of transmitting from its central portion to its end portions substantially all stresses caused by the tendency of the bolster to sway transversely of the vehicle, and additional compression springs sup ported from below and having substantially vertical axes, said springs being arranged to receive a portion of the vertical load from the corresponding end portions of the bolster, whereby the amount of load transmitted from the central portion of the bolster to the springis reduced.

4. A motor vehicle including a pair of wheels, a bolster arranged between said wheels, a bolster-supporting main spring centrally secured rigidly to the bolster through which the weight on the bolster passes on its way to the wheels, said spring being capable of transmitting from its cento its end portion substantially all stresses caused by the tendency of the bolster to shift bodily laterally of the vehicle, and auxiliary springs having substantially vertical axes interposed between the end portions of the bolster and the end portions of the main spring;

5. A motor vehicle comprising a pair of wheels, a bolster arranged between said the load on the bolster to the wheels, said means includ ing a bolster supporting main spring centrally secured rigidly to the bolster, said spring being capable of transmitting from its central portion to its end portions substantially all stresses caused by the tendency of the bolster to sway transversely of the vehicle, and additional compression springs supported from below and having substantially vertical axes located outwardly bevond the corresponding end of the bolster,

and means for operatively connecting the upper end portions of the spring to the corresponding end portions of the bolster, so constructed and arranged that the tendency of the bolster to tilt on the main spring p posed between the bolster ends and said is largely overcome and the amount of vertical load transmitted from the central portion of the bolster to the spring is reduced.

6. In combination, a pair of wheels, at bolster arranged between said wheels, means for transmitting the load on the bolster to the wheels, said means including an arched bolster-supporting leaf spring centrally se cured tothe bolster and having clips whereby the end portions of the leaves are held in proper relative alinement, said means also including auxiliary springs operatively connected to the end portions of the bolster and to the corresponding clip.

7. A motor'vehicle including an axle housing provided with an enlarged central porhaving substantially vertical axes located from said bolster tion, a bolster extending longitudinally of and substantially above said axle housing, an arched bolster-supporting leaf spring centrally secured rigidly to the bolster and terminally connected with the axle housing, said spring lying substantially in the central vertical plane through the axis of the axle housing and being of a. strength suflicient to transmit side sway of the body, a. pair of auxiliary springs interposed between the end portions of said bolster and the main spring whereby the main spring is prevented from. riding on said enlarged central portion of the axle housing under heavy loads.

8. A motor vehicle including a pair of wheels, a body supporting bolster arranged between the wheels and substantially in the vertical plane through thecom'mon axes of. said wheels, means for transmitting the load on the body to the wheels, said means including a bolster-supporting arched main spring centrally secured rigidly to the bolster, said means also including coil compression springs supported from below and outwardly'beyond the corresponding end of the bolster, and substantially in the vertical plane which includes the common axis of the wheels and means constructed and arranged to transmit body loads to the tops of said coil springs.

9. The combination with a vehicle frame, a. bolster extending transversely thereof, and an arched body-supporting leaf spring centrally secured to the bolster and terminally connected with the axle housing, of auxiliary l'Jody-supporting units interposed between the bolster ends and said spring, each unit including a. coiled compression spring, and a holder for the lower end of said spring, said holder including downwardly extend ing armswhich embrace the sides of the leaf spring.

1.0. The combination Wllilffl Vehicle frame, a bolster extending transversely thereof, and an arched bodysupporting' leaf spring centrally secured'to the bolster and terminally connected with the axle housing, of detachable auxiliary body-supporting units interthe vertical load on said bolster is carried,

said additional springs beingdetachable and being located out 130 w ardIy beyond the corresponding ends thereof.

12. A motor vehicle including a pair of wheels, a bolster arranged between the wheels and substantially above the common" axis of the wheels, means for transmitting the load on the bolster to the Wheels, said means including an arched terminally supported main spring centrally secured rigidly to the bolster, and means associated with the corresponding end portions of the bolster and the spring whereby a part of the load is transmitted to the main spring at points considerably removed from the point at which said spring is secured to the bolster, said last mentioned means including resilient elements located outwardly beyond the corresponding end portion of the bolster,

13. In combination, an axle construction,

shackles .pivotally sup-ported on saidaxle construction, an arched. main spring pivotally supported by said shackles and extending longitudinally of said axle construction substantially in the central'vertical plane lengthwise of the construction, load receiving means rigidly connected. to the central portion of the main spring, said main spring being adapted totransmit substantially all stresses due to the tendency of the body to shift bodily laterally, and additional means, including resilient compression members supported from below and having substanv tially vertical axes located substantially in :the central vertical plane lengthwise of the axle construction, so constructed and 'arranged that a portion of the load passes through it on its way to the axle .c'o-nstru'c tion without passing through the connection between theload receiving means and. the

central portion of the main spring.

14. A motor vehicle including an axle housing, a bolster extending longitudinally of and substantially above saidhousing, arms fixed to the end portions of said hens ing, shackles pivotedidirectly to said arms and depending therefrom, an arched main spring pivoted directly to said shackles, a bolster centrally secured to said main spring and extending longitudinally thereof, additional compression springs supported from below and having substantially vertical'axes,

and means for connecting the. upper ends of i said compression springs to the end portions of the bolster so constructed and arranged that deflection. of the main spring islessened.

- J DOTTL,