USRE12399E - Antivbbratiqn device for vehicles - Google Patents

Description

REISSUED NOV. 7,1905.

J. M. M. TRUEPAULT. ANTIVIBRATION DEVICE FOR VEH IGLES.

APPLICATION FILED JAN.10, 1905.

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J. M. M. TRUFPAULT. v ANTIVIBRATION DEVICE FOR VEHICLES.

APPLICATION P-ILED JAN. 10, 1905.

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REIESUBD Nov. '7, 1905.

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JULES MICHEL MARIE TRUFFAULT. OF PARIS, FRANCE, ASSIGNOR OF FIFTY-ONE ONE- HUNDREDTHS TO EDWARD V. HARTFORD AND FORTY-NINE ONE-HUNDREDTHS TO GEORGE H; HARTFORD,

- OF ORANGE, NEW JERSEY.

A'NTlVlBRATlON DEVICE FOR VEHICLES;

Specification of Reissues! Letters Patent.

Reisuued Nov. 7, 1905;

Original R o. 749,995, dated November 10, 1903. Application for reissue filed January i0, 1905. Serial Ho. 240.511.

. To all whom it may concern:

Be it knownthat I, J onus MICHEL MARIE TRU'FFAUPT, engineer, of 51 Avenue des' Terms, in the clty of Paris, Republic of France, have invented Improvements in or Relating toAntivibration Devices for Vehiplea, of which the following is a full, clear, imd exact specification.

' In order to diminish the transmission to the body or suspended portion of avehiclc of the shocks and vibrations partaken in by the running-gear by reason ofthe unevenness of the "ground, obstacles encountered, &c., various types of elastic suspension means have been interposed between the carriage-frame and the running-gear. different kinds and sizes of springs bemgnsunlly employed for this purpose. These springs, however, by reason of their very elasticity and freedom of prove "m'ent. upon compression cause a recoil shock "or vihratlon which is communicated to the body portion and which is almost as disagreeable and ()bJOClllOl'lilblB as the original shock would be. and this is particularly so when the vehicle is traveling at a high speed and the shocks are more rapidly received. This constant oscillation is not only disagreeable to whereby the action of the springs or suspen* sion devices is retarded, thus preventing the excessive recoil vibration and the transmission of shocks to the carriage-frame. Such an arrangement can be carried'ont in various ways, according to the construction 01 the vehicle to which "it is applied, and in the embodiments shown in the drawings forming a part of this application comprises oneor more I, frictional folding parts or joints, one arm be- ,meetsnn obstruction which tends to lift it the ing attached to the frame and the other being secured upon'tlie axle of the carriage. With this arrangement when the runninggear vertical movement; is not Imnnnunicutml to the carriage-frame. but is taken by the suspending-a rings, the frictional fold ingjoint-par taking in the movement, but materially re friction device and to a considerably greater extent than the original movement, for the reason that the recoil exerts considerably less mechanical effort than the fundamental compression, while the tension of the friction device is a constant quantity. In the preferred form of my invention it will furthermore be found that, the relative movement of the frietion-su rfaces is considerably less than the relatire movement of the running-gear and body of the vehicle by reason of the use of the connectinglcvcrs or arms, and this is of importancein that it enables a suificient tension to he applied to the device without interfering with its constant and invariable movement.

From the foregoing description it will be In the figures the same letters of reference,

denote the same parts.

As shown inFigs. 1 to 3. the frictional hinge device comprises arms It) with their end'poiw tions frictionally clam ped together nndmounted upon a bolt or stud a. One arm a carries a socket or flanged disk (Z, with which it is rigidly connected by rivets e. The other army I) carries a corresponding disk-or plate f, fitting in the socket o and clamped thereto by a nut g, screwed on the threaded end of the stud c. This nut is split, as shown in Fig. 1,. and is held completely immovable upon the stud c by a screw-collar h. Alcatherwusher is interposed between the socket (l and the disk f. enda screw-washer m is fitted between the latter and the not 7. By tightening or loosening the nut g-the frictional contact between the socket and disk, and consequently between the two hinged arms, can be raised-at will. The arms a I! carry at their other ends pivots n o, respcctivcly,m1d mountedso its-to produce a frictional action. Each of these pivots is constituted by a threaded 'rod having a conical part or not p adapted to lit inn.

' fitted, between the recess q and the conical part u o'fthe'n'ntfi Thus each of the rods or axles 'n has tWO-gQODiCBl parts p and it, which work with frictional action against the leather packings t and t, thereby producing' a resistance adapted to take up or de'aden the vibrations and oscillations .of the carriage. One of the threaded rodsn is attached to the axle and the other rod '0 to the frame of the carriage. .This friction device can in a convenient manner be conbined with the ordinary elastic suspension devices. zl', Fig, 4 shows a way of applying this invention, in which the friction device consists of two sets of disks 'A A, constructed as above described, the ends'of their agms being capable of turning with a frictional action of the pivots n o, one of which is fixed to the lower and the other to the upper part of an ordinary elliptical spring. The apparatus could also be applied to a C-spring, as shown, Fig. 5, or

to other convenient forms of spring, Fig. 6.

In this latter case the end of one ofv the arms of the device A can be mounted with a frictional action upon a support B on the frame' of the carriage, while the end of the other arm 6 is attached to one end of a straight spring carried by the carriageaxle, the other end of this spring being mounted with a frictional action upon av support B, also secured to or depending from the frame of the car-' 'i'iage.

The antivibration device according to the present invention could also be arranged in the form of a'parallelogram, Fig. 7. In this form it comprises four frictional disk devices, of which the two side ones, A A, are single,

. while the topand bottom disks AA, carried by the axle and by the frame of the carriage, respectively, are double.

Theapparatns could, moreover, be combined with two buffer-springs, as shown in Fig. 8, the suspension being effected either by the arms ofone, two, or more springs. as desired.

, In this case the apparatus consists of two single devices A A, the lower arms of which operatc'with a double frictional disk device fixed to or integral with the axle, while 'the upper arms are mounted with a frictional @ction on supports B B on the framcof the carriaze. It can be easily understood that these frictional devices allow of an easy displacement of the carriage-frame with regard to the axles, so as to dcadcn the shocksdue to uneven roads, &c., while the different frictional su rfaces of. the-antivihration devices offer a sufficient resistance in order to prevent vibration or oscillation of thesprings', and conseq uently of the frame, of the carriage. Moreover, the springs, which yield after each shock, efi'ect the return of the --frictional devices to their initial positions.

It is obvious that the apparatus according to this invention can he combined with all arm rigidly attached to said last-mentioned disk and means onsaid arm for securing it to the running-gear of a vehicle, a washer seated within the recess formed by said flange and between the faces of said disks, :1 bolt rigidly attached to one of said disks and passing freely through 'an aperture in the other disk and means on said bolt for adjusting the disks I relatively to each other, substantially as described. i

2. An antivibration device comprising a friction-disk having a peripheral flange and a flat interior surface, an arm rigidly attached to said disk and means on said arm for pivotally securing it to the frame of a vehiclefa second friction-disk seated within said flange,

an arm rigidly attached to said last-mentioned disk and means on said arm for pivotally securing it to the running-gear of a vehicle, a washer seated within the recess formed bysaid flange and between the faces of said disks, abolt rigidly attached to one of said disks and passing freely through an aperture in the other disk, a nut on'said bolt to regulate the friction and means to lock the said nut in position substantially as described.

3. An antivibration device com arising a pair of friction-disks'having paralle frictionfaces, an arm rigidly connected atone end to each of said disks, means upon the opposite end of one arm whereby the same maygbctf' pivotally secured to the frame of, avehicle" and means upon the opposite end of the other arm whereby the same may pivotally secured to the running-gear of a vehicle, the friction-faces of said disks being in a vertical plane parallel to a line drawn between the V pivotal supporting means of said two arms, a

washer between said friction-faces, and means for ad usting said friction-faces toward and from each other substantially as described.

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4. An antivib ration device comprising a pair of friction-disks having parallel frictionfaces, a peripheral flange upon one of and disks, which receives and partially incloses 3 may be pirotally secured to the frame of a I Vehicle and means upon the opposite end of otally secured to the running-gear of a vea bolt affixed to one disk and passing through tbe other disk, anarm rigidly connected at one end to each of said disks, means upon the opposite end of one arm whereby the same the other arm whereby the same may be pivhicle, the friction-faces of said disks being in a vertical plane parallel to a line drawn between the pivotal supporting means of said two arms, a washer between saidfrictionfaces, and means for adjusting said frictionfaces toward and from each other, consisting of an aperture in the other disk, a nut on said bolt and a lock for said nut substantially as described.

5. An improved'antivibration device for vehicles of all kinds. as hereinbefore described, in which every folding joint comprises two arms hinged together, one carrying a socket l or flanged disk and the other a plate in frietional conta with the leather inserted within the socket and'with a leatherwasher pressed against the plate by means of a nut screwed on a stud, substantially as described.

6. An improved antivihration device for vehicles of all kinds, as hereinbefore described, in which the arms of every folding joint are friction-ally mounted on the one hand upon a stud secured upon the axle and on the otherhand upon a stud secured upon the frame, each of these studs presenting two conical parts abutting against conical leather-lined surfaces presented by pivots mounted at the end of each of the arms of the folding joint, substantially as described.

JULES MEUHEL MARIE TRUFFAULT.

Witnesses:

JOHN BAKER, MAU Ion H. PIGNET.

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