US1657953A

US1657953A - Snubber

Info

Publication number: US1657953A
Application number: US121692A
Authority: US
Inventors: Edwin P Brandt
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-07-10
Filing date: 1926-07-10
Publication date: 1928-01-31
Anticipated expiration: 1945-01-31

Description

E. P. BRANDT swuasmz Jan. 31, 192 v v 1,657,953

Filed y 10. 1926 5 Sheets-Sheet 1 gvwentoz Edwin PB/"andf- W f e'sses I 2% [31W Patented Jan. 31, 1928 resists UNITED STATES? PATENT OFFICE.

EDWIN P. BRANDT, F CASPER, WYOMING.

SN'UBIBER.

This invention relates to devices for preventing rebound in motor vehicles after dcflecting of the vehicle springs incident to travel over a roughroadway.

One of the important features of the invention to provide a snubber ofsuch a character, that the same can be readily applied to different typesand sizes of vehicles, the parts of the snubber being reversible so as to permit the same to be used on either side of the car. i

Another object of the invention is the provision of a snu'bber of the flexible cable or strap type embodying novel means connected with and engaging the strap or cable for limiting the travel thereof, said means being so constructed and arranged as to effectively act to check the rebound of the vehicle during the short limited travel of the strap.

Another object, of the invention the provision of friction shoes arranged in a novel manner for engaging the strap for checking the sliding movement thereof during the. rebound of novel spring pressed levers operatively connected with the strap for acting against the movement of the strap according to the travel thereof.

A still further object of the invention is to provide a novel snubber of the above character which will be durable and efficient in use, one that will be simple'and easy to manufacture and one which can be incorporated with a motor vehicle at a small cost. i p

With these and other objects in view, the invention consists in the novel construction. arrangement and fori'nation of parts, will be hereinafter more specifically described, claimed, and illustrated in the accompanying drawings, in which drawings a preferred embodiment of the invention has been shown.

Figure 1 is a side elevation of the improved snubber showing the same in operative position on a vehicle, only a sufficient portion of the vehicle being shown to illustrate the connection of the snubber with. the chassis and axle,

Figure 2 is an edge elevation of the sameshowing the same connected in place to one of the side channel beams of the chassis,

Figure 3 is an inner side elevation of the snubber removed from the vehicle.

Figure t is a section through the snubber Application filed July 10, 1926. Serial No. 121,692.

illustrating the arrangement of the parts when the strap is not under tension,

Figure 5 is a similar view showing the strap under tension and the normal arrangement of the parts when the same is applied to a vehicle, the guide and shield plate for the friction shoes being shown in place,

Figure 6 is a bottom plan view of the main casting with the various operating parts positioned thereon,

Figure 7 is a section through the snubber taken on the line 7-7 of Figure t looking in the direction of the arrows,

Figure 8 is a detail perspective view of the main casting with the operating parts removed therefrom,

. Figure 9 is a detail perspective view of one ofthefriction shoes,

Figure 10 "is a detail perspective View of one of the resistance levers,

Figure 11 isa detail perspective view of the other resistance lever,

, Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter A generally indicates one form of the improved snubber and B a portion of the vehicle with which it is as sociated. The vehicle B forms no part of the present invention and has simply been shown to illustrate the use of the snubber and only a fragment of one of the sides of the channel beams 10 and axle 11 has been shown.

The improved device A comprises a. casting 15. which includes a disk shaped body plate 16 having formed on its outer face an attaching plate 17. The inner face of the plate 16 has formed thereon a hub 18, which in the present instance is provided with a pair of spaced radially extending guide openings 19 and 20 arranged at rightangles to one another. Intermediate the slide openings 19 and 20, the hub 18 is provided with a relatively large cut out portion 21,

iii)

the walls of which are arranged at right- The axial center of 22 angles to one another. the hub is provided with an opening which communicates with the opening 21 and it is to noted that the hub has its outer face spaced inwardly from the periphery of the disk 16. The plate 16 is provided with an axial internally threaded opening 23 for a purpose, which will be hereinafter more fully described. @utwardly extending their outer ends are provided with arcuate ears 2e and are formed on the hub at the sides of the opening 21 and the plate 16 directlybelow the ears 24f and is provided with openings 26 and 27 which are in alineinent with the

openings

28 and 29 formed in the said ears. Lugs 30 and 81 are carried by the side walls of the opening 21 as clearly shown in Figure 8 of the drawings.

Friction blocks

32 and 33 are slidably inounted respectively in the slide ways and 20 and these friction blocks are normally urged out vard radially from the hub by suitable expansion springs 84 which are coiled about a guide pin 35 secured to the inner'walls of the guide ways 19 and 20. The outer ends of the springs Set are received within relatively deep recesses 36 formed in the inner faces of the blocks and these recesses are of such a diameter so as to entirely house the spring and he pins 35 when the blocks are forced inwardly to their full extent. The

blocks

32 and 33 at friction faces 37 and the blocks noi-inally project beyond the hubs, but when the blocks are forced inward to their full extent the friction faces 37 will lie flush with the outer face of the hub" A cover and guide plate 39 of segmental shape is secured to the hub and partially overlies the guideways i9 and 20 and the axial opening 22. The portion of the plate 39 which overlies the axial opening is provided with a suitable opening 4d) which alines with the internally threaded opening 23 of the plate and a suitable shaft ll is connected Witn and extended through these openings. In order to resist the pull of the strap directly levers 4i?) and 414 are provided. The inner end of the lever s3 is provided with a hinged barrel and with pivot ears 46 at its outer end.

The opposite ends of the lever are provided with pairs of pivot ears i? and 48 respectively. The barrel 45 is placed between the pivot ears s7 and the stub shaft il is placed through the same and these levers are confined between the plate 16 and the plate 39, in the opening or space 21. The outer face of the lever 43 is provided with a socket l9 for the reception of an expansion spring which is fitted about the pin 30. The inner face of the lever 4rd provided with a similar socket 51 for the reception of an expansion spring 52 which is fitted about a pin 53 carried by the inner face of the lever 43. It is to be noted that the inner face of the lever l?) is so formed as to permit a portion thereof to ride into the lever l l between the pivot ears 47 thereof.

The outer pair of cars d8 of the lever 44: receives a suitable reinovable pin 54L- to which is clamped or otherwise secured to the strap 42' and this strap is placed between the cars 46 of the lever 41:3 and then trained about the hub 18. 'lfhe strap i2 is then trained under the pin which is placed in the alined openings 22) and 2? herctofore referred By this arrangement of the strap it can be seen that the friction blocks and 233 18:11 at all times against the inner face of the strap sfl thus tending to oppose the sliding movement thereof.

A protecting;- casing (3U is provided for housing the various operating parts so as to protect the same from dr. (1, road grit and the like nd this casing is litted directly over the hub and is secured to the pcripheuv of the plate 16 as at bl. The side wall of the casng till is provided with an opening 6: through which the strap 415 is to 'l lio stub shalt ll.

extend. prererably provider. with lubricating (53 so as to permit the hibrication of the levers n; and ll: in their s-nvingingmovement on the said shaft and grease can be forced into the passageway by any desired means.

In applying the snubbcr in position, the screw stud (iii provided and this stud is fitted through an opening in the side chun nel boa-n1 1t and threaded into an Olfltlllllg ($6 in the enlargement 17 provided for that purpose. It spacinp collar 67 placed on the screw stud between the beam ll) and the enlargement 1?. it stop stud ($8 is also thread-ed in the enlar ei'ncnt l"? for engaging; the lower face of die channel beam 10 of the chassis so as to prevent rotation of the snubber beam and casting thereon.

After the device is applied as shown in Figure 2 of the drawings the strap elil is pulled around the axle 1]. until spring 512 is compressed allowing the arm or lever l-l to come into engagement with the arm or lever .13 and the slide blocks are forced inwardly against the tension of the springs Ell. 'lhe strap is now ready to be secured in place around the axle and a suitable clump 'i'l) can be utilized for this purpose.

Figure -lshows the position of the parts above described. During: the above udjustinent the car must be without loud.

The device as shown in the drawings is assembled for right rear or front left. To attach to left rear and right front it is merely neccssarv to I'CIEIOYC the plates till, pins 5e and 5:") and place them in the holes in the car 24: and in the car 48. and remove the strap and reverse the lovers .1-3 and llplacing the springs and with spring 50 over the pins 251 and then replacing}; the strap.

dhcn a load is placed in the car, the vehicle springs are compressed according; to the weight. This compression of car springs causes the control strap in to relax the pressure upon the parts coinpi ssed. during the adjustment of the strap. d hen the ill:

sit)

car fraine has reached its lowest point. of vehicle spring compression, the levers l3, l i and-the slide blocks 3., and 33 and the strap l2 will be in the position shown in Figure lof the drawings. As the body rises, .the control strap 4L2 tightens and at the same time causes a friction effect on

slide bloclrs

32 and 33 and springs 34, and 52. (in the rebound or rise of the vehicle body in position, the friction increases on the strap 42. When the body rises beyond point of original adjustment of the strap friction and resistance are increased by spring 50 coming into play. When driving on smooth roads, the device comes into action to relieve vibration. lVhen the roads become rougher and the bumps greater, its resistance increases preventing violent spring reaction and shocks to passengers and cars.

Springs 52 should be sutlicient resistance to take up all slack in the strap 12. The springs 34; should be less strength than the spring 50. Spring 50 should be of sufficient res stance to overcome combined resistance of the springs 3a and 52. The pin can have a roller mounted thereon and this pin and roller prevents the strap from pulling away from the friction face of the hub of the casting. The device can be applied to cars a number of different ways, such as by turning the same upside down and pulling the strap over the pin 55 and its roller down to the axle. This application of the device functions in the same manner as in the first position.

Another manner of attaching the snubber is as follows. The strap 42 can be attached directly to the lever 43 with lever is turned over to face in opposite direction and insert spring 52 between the lever and the wall of the space 2].. The strap is brought around the hub in the same manner as shown. The strap is brought over the pin 54 of lever 41-41 and the slide blocks in the same position as shown.

lly adopting the last position it is necessary to use other means of fastening the f nale of the car. The device has great range owing to the various means by which the same can be applied.

Changes in details may be made without departing from the spirit or scope of the invention, but:

l Vhat I claim as new is:

l. A device for preventing rebound in vehicles comprising a stationary hub adapted to be secured to the frame of a vehicle, a flexible cable trained about the hub, a pivoted spring pressed lever connected with the inner end of the flexible member to'oppose movement thereon, the outer end of the flexible member being adapted to be attached to the axle of the vehicle, and afriction block engaging the flexible member at a point intermediate its length.

2. A device for preventing rebound in vehicles comprising a flexible member, a pivoted springtpressed lever carried by one portion of the vehicle and connected with the in nor end of the flexible member to oppose movement thereof, the outer end of the flexible member being adaptcd to be connected to another portion of the vehicle movable relative to the first mentioned portion, and a friction member engaging the flexible member at a point intermediate its ends.

3. A snubb r for motor vehicles comprisa casting having a hub provided with a cut out portion, a pair of levers pivot-ally,

connected together and to the hub at the axis thereof, a compression spring between the levers and a compression spring between one of the lovers and the wall of the out out portion, a flexible member detachably secured at its inner end to the first mentioned lever and trained about the hub, and means for securing the flexible member to the axle of the vehicle.

4. A. snubber for motor vehicles comprising a casting including a hub, a pivoted lever carried by the hub, spring means normally urging the lever in one direction, a strap st cured to the lever andtrained about the hub, a friction block carried by the hub, spring means normally urging the block radially of the hub in engagement with the inn er face of r the strap, and means for securing the outer end of the strap to the axle of a vehicle.

5. A snubber for motor vehicles comprising a casting including astationary hub, a spring pressed lever pivotally carried by the hub, a strap connected to the lever and trained about the hub, and a plurality of spring pressed radially friction blocks carried by the hub engaging the inner face of the strap, and means carried by the outer end of the strap for securing the same to the axle of the vehicle.

6. A snubber for motor vehicles comprising a casting including a plate and a laterally projecting hub, a hub having a slide Way and a sector shaped out out portion, a lever pivotally secured to the axis of the hub and arranged in the cut out portion, spring means opposing the movement of the lever in one direction, a strap secured to the outer end of the lever and trained about the hub, a spring pressed friction block slidably 1nounted in the guideway for engaging the inner face of the strap, a guide roller arranged at one side of the cut out portion for the strap, means for securing the outer end of the strap to the axle of a vehicle, and a casing for housing the hub having a slot therein for passage of the strap.

7. A snubber for motor vehicles comprising a casting having a laterally projecting hub provided with a segmental cut out por tion and a slide way, a pair of levers pivotally connected together and to the hub at the axis thereof, the levers being reversible relative to one another, a compression spring between the levers and a compression between one of the levers and the Wall of the out out portion, a strap detechably secured at its inner end to the first mentioned lever and trained about the hub, a spring pressed radially urged friction block mounted in the slidevvay for engaging the strap, and means for securing the strap to the axle of the vehicle.

8.111 asnubber of the character described, a casting including a plate, a laterally projecting hub carried by one face of the. plate, means carried by the opposite face of the plate for permitting the attachment there of to the chassis ot' the vehicle, the hub having a radially extending guiden ay and a segmental cut out portion, and laterally extended pivot ears formed on the hub at the opposite sides of the cut out portion.

9. A snubber for motor vehicles comprising a casting having a laterally projecting hub provided with a segmental cut out portion, a pair of pivoted levers connected together and to the hub at the axis thereof, the levers being reversible relative to one another, a compression spring between the levets and a compression spring between one oi the levers and the wall of the cut out portion, a flexible member detaehably secured at its inner end to the first mentioned lever and trained about the hub, a removable guide for the flexible member adapted to be secured to the hub on either side of the cut out portion, and means for securingthe strap to the flexible member at the axle of the vehicle.

In testimony whereof I ailix my signature.

EDlVIN l BRl-i't'NDT.