US2023943A - Shock absorber for spring suspended road vehicles - Google Patents

Shock absorber for spring suspended road vehicles Download PDF

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Publication number
US2023943A
US2023943A US734835A US73483534A US2023943A US 2023943 A US2023943 A US 2023943A US 734835 A US734835 A US 734835A US 73483534 A US73483534 A US 73483534A US 2023943 A US2023943 A US 2023943A
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United States
Prior art keywords
lever
shock absorber
spindle
springs
spring
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Expired - Lifetime
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US734835A
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English (en)
Inventor
Wieland Edouard
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Individual
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Individual
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Publication date
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Publication of US2023943A publication Critical patent/US2023943A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only

Definitions

  • Shock absorbers have been already proposed for the purpose of reducing or increasing the supporting force of car springs at the moment of passing over depressions and projections in they ro'ad, in which the wheel axles are connected to the upper part or body of the car by means of a spring controlled system of levers; including a toggle joint, or with a slide in the form of a double wedge movable to and fro in spring shears.y
  • a spring controlled system of levers including a toggle joint, or with a slide in the form of a double wedge movable to and fro in spring shears.
  • the invention relates to a shock absorber of the well known kind in which the wheel axles are connected to the chassis by means o'f a spring-controlled lever which can swing about an axis out of a central position.
  • the invention consists mainly in that the lever is held in its central position by spring means pressing in a direction towards the free end o'f the said lever, and having at least one point of support situ- (Cl. 26T-20) ated between the ends of the lever.
  • the said spring meansV acts laterally on the lever in the direction of its swinging movement.
  • shock absorber In order that the invention may be clearly understood, and readily carried intopractice, two constructions of shock absorber according to the invention are illustrated, by way of example only, in the accompanying drawing.
  • Figure 1 is a side elevation of one construction of shock absorber with half of its casing removed.
  • Figure 2 is a section on the l'me ll--ll of Figure 1.
  • FIGS 3 and 4. illustrate diagrammatically various lever and spring positions.
  • FIG. 5 illustrates diagrammatically an alternative construction
  • Figure 6 is a shock diagram for the samestretch 35 of road when using a well known type of shock absorber, and when using a shock absorber according to the present invention, thel full line showing the damping action ⁇ of the known shock absorber, and the dotted line showing the action oi a shock absorber according toP the ⁇ present inf vention.
  • a divided casing a, a lever bk is 'sea cured to a spindle c on which is mounted out-A side the ⁇ casing a lever e connected by means. of a rod d to a wheel axle.
  • the casing a is secured to the car chassis or frame (not shown in the drawing)
  • the freely oscillating upper end of the lever bis connected by means of a balance beam f to the upper ends of two spring guides g, h, of variable length on either side of the lever b, and pivoted to the beam f at 7.
  • the lower parts h of the said spring guides are pivoted about pins i arranged above the level of the spindle c.
  • On the guides g, h are disposed helical compression springs k.
  • the part of the casing a between the pins i, the guides g, h, and the balance beam f form together an articulated parallelogram, the side f of which is connected in the centre, but above the pivots 7, to the lever b; that is to say it can swing laterally with the latter towards either side, out of the central position.
  • the part of the casing a between the pins i is immovable since it is part of the wall of the casing which is xed.
  • the distance between the pivot pins i is slightly greater than that between the pins j, so that the lever b is normally held by the springs 7c in the central position or position of equilibrium.
  • the lever b will be rotated out of its central position to the right, whilst on passing over a projection, it will be rotated to the left.
  • the pivots fi, i andi, i of the springs lc are situated intermediately between the ends ofthe lever 19, i. e. between planes parallelto each other passing through the said ends, the distance between the corresponding pairs of pivots i and i must increase, which is readily permitted, since, as already stated, the guides g, h are of variable length, being formed by ycup-shaped parts slidable on one and the same rod.
  • the balance beam f is omitted, and the springs It are brought closer together in front of and behind, the lever b, and are connected directly with the oscillatingor free end of the latter.
  • the springs are shorter i than the lever b, and their lower ends are mounted intermediately between the ends of the lever on pivot pins i projecting inwardly from the Walls of the casing a, and arranged either in the vertical plane of the spindle c or on both sides, and close to it.
  • the action of the springs 1c on the lever b is exactly the same as in the costruction previously described and illustrated by Figures 1 4.
  • the construction is however, considerably simpler, the oscillating masses are smaller, and the casing could also be made somewhat smaller, which is a great advantage having regard to the compactness of construction necessary owing to the limited space available in motor vehicles.
  • the casing a may be lled with oil or grease so as always to ensure an easy mobility of all the moving parts.
  • Shock absorber means for spring suspended wheeled vehicles including a spindle revoluble on an axis iixedly positioned with respect to the frame of the vehicle, means connecting the spindle toa wheel axle of the vehicle to rotate the spindle as the axle moves toward and from the vehicle'frame, a lever I'lxed on said spindle and projecting ,radially therefrom, a balance Abeam pivoted at its center to the upper end of said lever to swing aboutl an axis parallel to the axis of the spindle, and springseach having one end connected to a respective end of said balance beamY andv urging said balance beam end away from saidA spindle.
  • Shock absorber means for spring suspended wheeled vehicles including a spindle revoluble on an axis xedly positioned with respect to the frame of the vehicle, means connecting the spindle to a wheel axle of the vehicle to rotate the spindle as the axle moves toward and from the vehicle frame, a lever fixed on said spindle and projecting radially therefrom, a balance beam pivoted at its center to the upper end of said lever to swing about an axis parallel to the axis of the spindle, springs each having one end connected to a respective end of said balance beam and urging said balance beam end away from said spindle, and pins positioned on opposite sides of said lever in xed relation to the vehicle frame and having the remaining ends of said springs attached thereto.
  • Shock absorber means for spring suspended wheeled vehicles including a spindle revoluble on an axis xedly positioned with respect to the frame of the vehicle, means connecting the spindle to a wheel axle of the vehicle to rotate the spindle as the axle moves toward and from the vehicle frame, a lever xed on said spindle and projecting radially therefrom, a balanceV beam pivoted at its center to the upper end of said lever to swing about an axis parallel to the axis of the spindle,V springs each having one end connected to arespective end of said balance beam and urging said balance beam end away from Ysaid spindle, and pins positioned on opposite sides of said lever in fixed relation to the vehicle frame and' having the rremaining ends of said springs EDOUARD WIELAND.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
US734835A 1933-07-17 1934-07-12 Shock absorber for spring suspended road vehicles Expired - Lifetime US2023943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH428741X 1933-07-17

Publications (1)

Publication Number Publication Date
US2023943A true US2023943A (en) 1935-12-10

Family

ID=4514887

Family Applications (1)

Application Number Title Priority Date Filing Date
US734835A Expired - Lifetime US2023943A (en) 1933-07-17 1934-07-12 Shock absorber for spring suspended road vehicles

Country Status (4)

Country Link
US (1) US2023943A (fr)
DE (1) DE632785C (fr)
FR (1) FR776076A (fr)
GB (1) GB428741A (fr)

Also Published As

Publication number Publication date
FR776076A (fr) 1935-01-16
DE632785C (de) 1936-07-13
GB428741A (en) 1935-05-17

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