DE2732945A1 - CENTRAL HOLDER OR CARRIER FOR A REACTIONLESS VEHICLE CHASSIS AND A REACTIONLESS SUSPENSION SYSTEM EQUIPPED WITH IT - Google Patents

Description

273294b

^ O. July 1977 D 5 ^ 6 ^ - resp

E.H. Ji '. Limited, Sandbach, Cheshire, UK and Ernest S.

Central holder or carrier for a non-reactive Vehicle chassis and equipped with it, unresponsive suspension system

The present invention relates to a central holder or carrier for a non-reactive vehicle chassis with two pairs of springs in tandem on each side of the chassis and each spring with its front end is pivotally attached to the chassis and the rear ends of the springs of each pair are connected to each other with the help of a system of pivoted angle levers on the chassis, for each A pair of springs such a central holder or carrier

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-μ - 2732y Fig

- 2732y Fig

is seen, which has an angle lever to which the lower end of the front i'eder of the pair is attached, as well as an established pivot bearing iur the front jvnae egg towards the l'eder. Me invention further relates to a _t reaictiousloses ü.uihängmi; ssystem, which is equipped with a central support or exchangers of the aforementioned ArL.

A reactionless chassis is known to contain four legs, with a pair of kernels in tandekianordi, on each side of the chassis. Each one is pivotably attached to its front end in the chassis and the rear end of the leather of each pair are connected to one another by a system of angle levers that are pivotably mounted on the chassis to transfer the load between the two leather without any undesirable reaction, i.e. without z. B. feedback-like (ief effect to be accomplished, xüin central holder or carrier is assigned to each pair of overheads and contains an angle lever to which the rear end of the foremost I'eder of the pair is attached, and a fixed pivot bearing for the front end of the rearmost Spring. Such a holder will hereinafter be referred to as a "central holder or carrier of the aforementioned type".

According to the present invention, a central holder or carrier of the foregoing type is provided which is characterized by is that it has a pivot suitable for rigidly attaching its one end to a chassis member C, includes a pivoted toggle lever mounted around the pivot and a pivot arm or Auslegerferm, the

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273294h

Pivots at or near the other end of the same iiiit is rotatable with this t; ela {; oi't is and this ^ egenuber unverdi-eh-Lar may be, with mutually aligned adjustment means or Hittel only local i'eetlegunt ^ for the mutually opposite Ends of an ederstift on the display and on the Shaft stump voi- ^ esen are seen.

The shaft stump preferably contains a base plate which consists of a single piece in that it is formed with it as a cast piece or as a drop forged piece, and which contains fastening means for connecting the pivot pin to a chassis part.

Preferably, the shaft stump is provided with a longitudinally extending through hole, the portion of which remote from the base plate has a diameter that decreases in the direction of the base plate, an anchoring bolt being provided which extends through the through hole and for fastening of the pivot on a chassis part.

A bearing sleeve is preferably interposed between the pivot pin and the angle lever and is held in position on the pivot pin between the base plate and the extension tower .

The means for determining the position of the spring pin on the pivot pin and on the extension arm preferably contain projections C "bosses") which are located on the base plate and on the extension arm.

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are poorly trained.

The cantilever arm preferably has a through bore provided with grooves, which is correspondingly grooved around one provided ("splined") end portion of the pivot engages around, and one of the aforementioned continuous Bore away extending radial slot has, with bolt holes, their mutually aligned axes transverse to the axis of the extending through the cantilever arm Bore extending on each side of the slot are provided to receive a clamping bolt.

Also preferably, may be also provided that are provided by the anchoring pin and the pivot pin passing lubricant passages, in order to bring lubricant to the contact surfaces of the bearing sleeve of the angle lever.

Conveniently, a reaction-free suspension system is characterized according to the invention in that it _t a central support or carrier with one or more of contains the aforementioned features.

Generally speaking, therefore, that the central inventive holder or carrier for ¹ A reaction Losee vehicle chassis includes two pairs of springs on each side of the chassis in tandem arrangement, each spring is pivotally mounted with its front end on the chassis and the rear Andes the springs each pair is articulated with one another

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are connected by means of a system of angle levers pivoted on the chassis. This central holder or Carrier is provided for each pair of springs and contains an angle lever on which the rear end of the foremost spring of the Pair is attached, and a fixed pivot bearing for the front end of the rearmost spring. This central Bracket or bracket includes a pivot which is rigidly attached at one end to part of the chassis, a bell crank pivotable about the pivot, and a boom arm extending from the pivot to its other End or near this end is supported and locked against relative rotational movement with respect to the pivot is, as well as means for determining the position of the opposite ends of a spring pin on the Auslegerjarm and on Trunnions that are aligned with each other.

The drawing shows an exemplary embodiment of the object of the invention shown. Show it:

Fig. 1 shows a non-reactive ("non-reactive"), sprung chassis according to the invention in a side view,

FIG. 2 shows a central holder of the chassis according to FIG. 1 in an individual representation in a front view and

3 shows the illustration according to FIG. 2 in a side view in section.

In Fig. 1 is a reactionless or without counteraction (reaction)

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working chassis shown, the two pairs of leaf springs L contains, which are arranged in tandem, a pair on each side of the chassis. As the two pairs and their mounts are the same, only one is described.

The front end of the foremost spring L is on the chassis O with Using a conventional anchoring arrangement A pivotably mounted, and the rear end of the rearmost spring is with Using a linkage attached to an angle lever B, the does not form part of the invention and is not described in detail.

A central support or holder 10 is provided to support the rear end of the foremost spring and the front end of the to hold and support the rearmost spring, the rear end of the front spring on an arm of an angle lever 12 is mounted and the other arm of this angle lever by a linkage (connecting element) K with an * .rm of the angle lever B is connected to which the rear end of the rear spring is attached. This arrangement is known per se.

Figs. 2 and $ show the central holder or support 10 in detail, which comprises a pivot pin 14, the truncated a wave contains 15 and a base plate 16 made with this in one piece, wherein the plate provided with holes 18 16 is through which locking bolts ( not shown) are passed to fasten the base plate to the chassis.

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The Wellenstximpr 15 ″ has a lengthwise extending Passage (a bore) 24, the of the Base plate 16 removed portion of the passage has a diameter that becomes smaller, the more the passage is in Towards the base plate, while the remaining portion of the passage is cylindrical and grooved is. The other end of the trunnion stub shaft is provided with hats that fit the grooves of the inner surface of a one supported by one on the outer end of the pivot pin Swivel arm or Auslegerferm 30 correspond to extending passage. The arm JO is used to provide the outer end of a flanged bearing bush composed of two parts 22, which is inserted between the angle lever 12 and the stub shaft 15 to set, the inner end of this Bushing is fixed on the base plate 16 by a washer 28. Locking rings 20, 20a made of oil-resistant Rubber are between the angle lever 12 and the Auslegerferm (Carrier) 30 or the disk 28 inserted »

Through the body of the extension arm is from its outer surface a radially extending gap 32 is formed towards the passage and there is a bolt hole through the extension screen 36, the axis of the bolt hole being transverse to the axis of the passage and wherein a clamping bolt 38 that fits into the hole must be tightened can to fix the extension arm at the end of the pivot.

A round projection (eye, "boss") 40 is in front of the extension arm.

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27329 Fig

seen and serves one end of a spring pin ("spring pin") P, which carries the front end of the rear leaf spring L, to pick up. The other end of the pin P is arranged in a same projection 42 on the base plate 16 of the pivot. To the pen pin exactly and to be positively defined, both projections 40 and 42 with slots extending in the radial direction are not shown Provided clamping bolts.

To adjust or locate or position the cantilever arm and the mounting of the pivot pin To facilitate the chassis 0 is a bolt 50 with an enlarged Head 52 is provided which bears against the front surface of the boom and the end of the pivot. The hole the base plate 16 is provided with grooves which correspond to and face the grooves on the outer surface of the bolt 50, so that when the nut 62 is tightened, the bolt can no longer rotate.

Means are provided to lubricate the contact surfaces of the bearing bush 22 of the angle lever. Such lubricant supplies contain passages ρ passing between the bearing bushes or through the pivot pin and a grease nipple 60 on the bolt head 52. When lubricant is injected through the grease nipple 60, the conical part of the passage 24 in the pivot pin 14 is filled with lubricant which passes through the passages is fed to the bearing bush surfaces in the pivot.

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Various modifications are possible without exceeding the scope of the invention, e.g. B. could
the bearing bush 22 could be replaced by a roller bearing or self-lubricating bearing, and the grooved connection between the shaft plug 15 of the pivot and the cantilever arm could be replaced by some other suitable arrangement which would cause an accurate bearing of the cantilever arm with respect to the pivot pin.

Since the grooves of the bolt 50 are in the immediate vicinity of the screw nut 62, the angle of rotation when tightening is very small. The ends of the grooves are rounded to
to facilitate the insertion of the bolt 50 during assembly, so that assembly is facilitated in this way.

The central bracket or bracket can be in a non-reactive suspension for both front and rear chassis used by commercial vehicles.

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Claims (8)

July 20, 1977 D 5565 - or E.E.P. Limited, Ernest Sherratt, Sandbach, Cheshire, Great Britain Central holder or carrier for a non-reactive vehicle chassis and non-reactive suspension system equipped with it claims 1. Central holder or carrier for a non-reactive Fahrig A vehicle chassis in which two pairs of springs are provided in tandem on each side of the chassis chassis and each spring is pivotally mounted at its front end on the chassis chassis and the rear ends of the springs of each pair by means of a system of angle levers pivotably mounted on the chassis are connected to each other, with such a central holder or spring pair for each pair of springs. 709884/1041 273294 :,) Carrier is provided which has an angle lever on which the rear end of the front i'eder of the pair is attached, as well as a fixed pivot bearing for the front end the rear spring, characterized in that it includes one for rigidly attaching its one end to one Chassis member (.C) suitable pivot (14), one around the Pivot (14) around pivotably mounted angle lever (12) and a pivot arm or extension arm (i> 0) contains the Trunnions (14) at or near the other end of the same is rotatably mounted with this and can be non-rotatable with respect to this, with mutually aligned adjusting means (40, 42) or hittel for local determination for the opposite ends of a spring pin (P) are provided on the cantilever arm (30) and on the stub shaft (14). 2. Central holder or carrier according to claim 1, characterized in that the pivot pin (14) contains a base plate (16) which consists of one piece with it by being formed with it as a casting or a drop forging, and the fastening means ( 18) for connecting the pivot to a chassis part (C). 3. Central holder or carrier according to claim 2, characterized in that the pivot pin (14) with a longitudinally extending through bore (24) is seen ver , the portion of which is remote from the base plate (16) has a diameter in the direction to the base plate - 3 -709884/1041 decreases towards, wherein an anchoring bolt (50) is provided which extends through the through hole and contributes to the attachment of the pivot pin (14) to a chassis part (10). 4. Central holder or carrier according to claim 2 or 3, characterized gekennzeic-hnet that a bearing sleeve (22) between the pivot pin (14) and the angle lever (12) is interposed and in their position on the pivot pin between the base plate (16) and the boom arm (30) is held. 5 Central holder or carrier according to one of Claims 2 to 4, characterized in that the means for determining the location of the spring pin on the pivot pin (14) and on the cantilever arm (30) tosses (42, 40) formed on the base plate and the cantilever arm. 6. Central holder or carrier according to one of claims 1 to 5 »characterized in that the cantilever arm (30) has a grooved through bore which engages around a correspondingly grooved (" splined ") end portion of the pivot, and one has a radial slot (32) extending away from the aforesaid through bore, with bolt holes (36) »whose mutually aligned axes run transversely to the axis of the bore extending through the cantilever arm, are provided on each side of the slot, around a clamping bolt ( 38). - 4 709884/1041 ■ ⁴ - 273294b 7 Central holder or carrier according to one of Claims 3 to 6, characterized in that the anchoring bolt (52) and lubricant passages (P) passing through the pivot pins (14) are provided to deliver lubricant to the mating surfaces to bring the bearing sleeve (22) of the angle lever (12). 8. Non-reactive suspension system, characterized in that there is a central holder or carrier according to one of the Claims 1 to 7 contains. 709884/1041