DE1780001A1 - Coupling device for trailer - Google Patents

Description

I ⁵ SUZU MOTOR «? LTD. 22-10, Miiiamiooi 6-chome, Shiflagawa-ku,

Tokyo, Japaa

FUJI HEAVY INDUSTRY LTD., 73-2, Tsuuohazu 2-chome, Shiajuku-ku

Tokyo, Japaa

Coupling device for Aahäager

According to the requirement, a clutch device is inserted between one A tractor uad eiaem Aahäager created, which thereby gekeaazeichioet igt that they fixed eiiaea fixed aa eiaem Aahäager KupuagRotuft, a rotating part that revolves around the clutch pin rotea can uad aa the uaterea surface desselbea eiae Aaordauag owns that with eiaem aa eiaem towing vehicle engordaetea coupling part ia engagement come kaua, uad eiae Bremsaaordauag has, which is generally capable of aa the trailer to be attached for a deceleration of the rotating part.

The Erfiaduag concerns a device of the obea aagdgebeaea Kind that is aagewaadt together with an Aahäager who A cap plug has uad with a coupling part (-jeek fifth wheel coupler; der Zugraaschiae vereiaigt werdea kaaa.

Weaa eiaemkuppelte or verbuadeae with an Aahäager Zugmesohiae «I moved over a curved path and a the brake is suddenly applied, a force of inertia on the tractor by the Aahäager due to the temporal a Delay of the application of the brake at the

108846/0495 - 2-

Tractor caused. For this reason, the connected vehicle tends to be in a V-shape ae to the coupling pin turn so that the trailer can be turned in slippery road conditions tends to turn to a considerable extent with regard to the tractor, so that very dangerous conditions arise, This appearance is generally known as the Klappmesner phenomenon designated.

According to the invention, a device is now created by which prevents this phenomenon and the rotational movement between the coupling pin and the coupling part of the tractor, if the brake is suddenly applied.

yüs are some patents relating to one of these types corresponding device has been published. The main feature of these patents is the application of a vertical shaft coupling (coupling pin) which is arranged in this way inside the trailer and rotates in it It is possible that the rotating vertical shaft coupling (coupling pin) can be braked by means of an independently arranged mechanism which interacts with the trailer's system. At this stand the Teohnik is the vertical shaft coupling or coupling pin rotatable so stated that the mechanical strength, rigidity and resistance to abrasion of the rotating part must be increased, and so this type of construction becomes quite intricate compared to conventional stationary coupling pins, since the coupling pin is a component that must withstand all upward and downward loads and the lateral load that is then undeveloped. Towing vehicle de · Trailer pulls.

- 3 -109848/0498 * d original

According to the invention, the conventional stationary coupling pin applied and there is a disc (rotatable * part) for one Rotation around the coupling pin is provided and ep is an arm arranged at the lower end part of the disc and in one Engagement with the clutch plate, whereby an interaction with the coupling part (fifth wheel coupler) takes place and the disc is activated in cooperation by actuating the brake system " Braked, which is located inside the trailer, reducing the relative rotation between the trailer and the fifth ead is prevented.

.dines, the features of the invention is thus that a conventional, stationary coupling pin is used, and a disc (rotatable member) is rotatably disposed around the pin, and it is an arm ao of the disc for engagement arranged with a coupling part plate, independently of the pin, so as to brake the rotating disc.

According to a further »embodiment of the invention, instead of A drum is applied to the disc (rotatable part), which has a fluff extending upward, and it has two Brake shoes are provided that frictionally engage with you inner surface of the drum lead and it continues to lie a cam before which serves to press the brake shoes against the inner surface of the drum in such a way that when actuated of the cam in interaction with the actuation of the braking system? the frictional forces are applied to the drum, whereby any relative rotation between the trailer uad the coupling part uad thus the above-described jackknife phenomenon can be avoided.

- 4 1-0 9846/0490

The invention is hereinafter referred to by way of example explained on the attached drawings:

Fig. 1 is a longitudinal section along the line A-A F_, g. 2 and shows a device according to the invention. Fig. 2 is a top plan view of this device. Fig. 3 is a longitudinal section along the line B-B of FIG. 4 and shows a further embodiment according to the invention.

Fig. 4 is a plan view of the device. Fig. 5 is a side view of a trailer in which the erfindungsgerräße device is installed. Fig. 6 shows a typical design in which a fifth üad is present together with the device according to the invention, Fig. 6a shows a plan view of the same and Fig. 6b shows a view in section along "the line C-G of FIG. 6a. Fig. 7 is a diagram of a compressed air operating diagram Brempmechanistnus of a trailer * - including an invent suitable device.

Fig. 8 is a s before <\. A table view and shows the connection of a füufte <- iiad having trailer & erp. Figure 9 ° i. T is a plan view of a further erfindungsgemflße ii.! Isf ührungsf orm _o

With reference to the attached drawings, a specific embodiment according to the invention is shown in FIGS. 1 and 2, whereby, a coupling 1 via a suitable "part with ciijoi · Trugttil 6 is veruietut, that is peinerneitr; stationary ver J ^ -ittel "iiolcen au dem Trafe ^ ylimitr ^r j for the clutch« »^ lift delivers j.gt ir? L. Diürer TrMg ^ yliuder '} for the ICuppluugsstif L is aj f -. Ii; cr GIi. j tp-Li t Le 7 vei'noijw ·. i [M, uu the unt-ercii upper

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^{νί r} 'tjJi .1 i'iirl αϊ. 'i (M:> jitiJi ^.: a, _c i.; j' Ij ι J '<·· uj _o ι., ^ ^ i ^ l a soli · ibo 2

ORIGINAL

rotatably fitted over the coupling ^^ tift 1 and on the lower surface of the shit 2 is fept a λΓΓϊι 5 attached, which is used to engage with a coupling part. If the coupling pin 1 with this coupling part, see U ¹ Xg. 6, connected, is a recess 1 'on the lower end part of the coupling pin 1 in engagement with an engaging clioke 12, this coupling part and the arm is held firmly in the interior of both'"side buildings 13 of the recess this coupling part relative rotation of the coupling pin 1 relative to the Kupp lungs, partly to a rotation of the disc 12. the outer surface of the disc 12 is a friction ^ braking ^lti MECHANISM assigned. whereA Pail the AusführJngoform according to FIGS. 1 and 2, the outer surface of the Disk 2 held between Reibungseleraeatea 3.

The friction π e le me η te 8 can be powerful against the ^ ohei be 2 and dag. towards the action of a lever IO are pressed, which through a holder 9 is carried, this being the action of the air chamber 11, which leads to an actuation oes lever Io leads, si that thereby the rotation of the Disc 12 can be interrupted.

This friction brake mechanism is located in a trailer brake ^ ystem ro suggests that with messengers «de => iiremopddals by the motor vehicle driver the compressed air in the chamber 11 so is introduced that the lever 10 is operated, so that then d Le fellbungnelemen te ti is pressed against the flea disk 2, whereby the rotational movement of the disk 12 is limited.

This means that "* the coupling fixed in place on the tractor?" ta Li an eLner DruhtunMgung g-jh Lnu ur ι, <»o ei« * f (di » irnung zwLnolioii dorn liagt'ufiriseuei uni .ia: 'i ι.ίΐκίΐιι ^ ϋΐ' iiirit ·

'' üvb j n-lung wii'.l, μ ο dass diii υϋ '.' η .-, -. ϋ ·; ui L. ^ i c ■ ■ ·. l.iu

109846/0491 ..

BAD On; YesMAL

Raessererscheinung is prevented. A further embodiment according to the invention is shown in FIGS. 3 and 4, according to which a clutch actuator 15 sweeps is arranged on a support plate 19, and a support by a slide plate 18 has a? Pendant"? takes place via a coupling pin and SöUtzylinder 20. As in the case of the first embodiment, a rotatable drum part 17 is adapted over the coupling pin 15 so that it rotates around it. Attached to the lower surface of the drum 17 is an arm 16 which is adapted to engage a coupling part such that a rotational movement of that coupling part is converted into the rotational movement of the drum 17. JSs, a well known n & t cam actuation braking mechanism is attached to the support plate 19. Here, one end of each of the brake shoes 21 is rotatably mounted on a shaft or axle 28 which is fastened to the support plate 19, while the other end is provided with a roller 23 so as to hold a cam 24 between two lobes 23. The cam 24 is made in one piece with respect to the camshaft 25, which in turn is carried by means of a projection which is arranged on the support plate 19 and is also connected to an air chamber 27 via an arm 26.

When compressed air is introduced into the air chamber 27 is, the camshaft 25 is rotated by means of the arm 26 so that that the cam 24 leads to an opening of the brake shoes 21, whereby the same against the inner surface of the Jnfangs .Rommellinungen 22 are pressed, which on the brake shoe 21 are attached, so that this slows down the rotational movement the drum 17 takes place.

- 7 -BAD ORIGINAL

1 098Λ6 / 049 &

ji, p, the result is that the rotary movement of the coupling part is prevented so that the folding knife phenomenon described cannot occur.

The same ./irkung can be achieved in that a rotatable lever in place of the disc or drum and is applied. ICnde external of the rotary lever is connected to the piston, on the inside of the cylinder "? the required hydraulic V / ider ^ tand is applied. 9 shows such a system in which a rotatable lever 58 with an arm 3 is rotatably arranged over a coupling pin. The outer ends of this lever 58 are connected to a piston-cylinder arrangement 54. Dxe Chambers in a cylinder subdivided by means of the piston 55 are connected to one another by means of a cylinder 56, there are valves 57, actuated by means of linear actuators, between the two chambers, which are due to a rotary movement of the rotatable lever 58 the springing means in both chambers within the cylinder divided by the piston 55 is guided to the connection pipe Lever 58 prevents.

In the pig. 9, reference numeral 59 indicates a reservoir for the supply of the oil to the cylinder 54, the reference drawing ex 62 a battery, reference numeral 60 a pressure operated one Switch again, which serves the electrical power Solenoid coils operated valves 57 due to the pressure increasing inside a - ^ rem ^ lead 61 to be fed.

i ^ o ri nd Dreähtß by da ''? wi Jiezugnzeiohen 63 <Dege _^(T; (bon V.eiterhin, the combi nation ¹ a cone-ört / n-α v λ f orv \ Lc-n ^ cheibe. 'ji ο im? ii PeJi, da "in i'or: n a« "ie ^ .Ji a: j-.D ^ n ^ hi: un ^ or

1Ü98A6 / 0496 '_ _;; _

BATHROOM OfliGINAL "

- ο -

Has cavity or a multi-disc brake related with the object of the invention in addition to the combinations of rotatable disc 2 with the friction «? elements 8 are applied, as shown or related to the first embodiment the drum 17 and the brake shoes 21 after the zwd. th illustrated embodiment.

7 shows a diagram of a control system actuated with compressed air in which a conventional braking mechanism for the trailer with the appropriate equipment »o together acts that an actuation of the brake system of the trailer and at the same time this the device according to the invention takes place and only the device according to the invention is actuated by an operator actuating a switch regardless of the actuation of the trailer's braking system.

There is a line 33 and an emergency line 34 with a braking system connected to the tractor via the coupling 30 between the trailer and the tractor. The line 33 is used to To transmit pressure, which then experiences an increase when the operator presses a foot pedal (not shown) below Actuation of the emergency valve 31. The groove line 34 is used for compressed air from the tractor aas to an air container 32 of the trailer.

The emergency valve 31 is normally used for the compressed air from the tractor to the trailer's air reservoir convict. When the operator depresses the pedal, so that the pressure in the line 33 is increased, transferred that Emergency valve 31 from the air tank 32 from air to an air chamber 35 », namely for actuating the shower of the trailer, where the duun prevailing pressure is proportional to the increase in pressure ipt.

1098A6 / 0A96 BAD ORIGINAL _ _g _

When the pedal is lied, the pressure inside the Line 33 is returned to normal pressure, the Air in the interior of an air chamber 35 au, q is released from the light valve 31. When the pressure is applied to the ion of the tractor compressed air lower than all> A predetermined value is also in the pail the ratio of the air supply line will there? =! Emergency valve 31 actuated, fo that compressed air from the air tank 32 au, q is fed to the air chamber 35.

The system for actuating the device according to the invention Associated components pind an air supply line 39 from line 33 auq, a double-acting valve 38, a relay valve 37, a solenoid-operated valve 42, air supply lines 36,45,46 and an electrical wiring 43 (strongly drawn j.

In the case of "pressing"? de «? iiremspVRtem «= · dep as soon as the iedienung ^ perpon presses a -" remepedal (not shown; compressed air is supplied to the line 33. The compressed air reaches here via the air supply line 39 and there «= · Double-acting valve 38, ρ o that dap üelaicven til 38 at; Ati.jt, whereby the compressed air present in the interior of the" air container "32 is fed into the air chamber 40 in the interior of the device 4I according to the invention. If the valve is released, the pressure present in the interior of the line 33 is reduced and the valve 37 interrupts the flow of compressed air from the air reservoir 32. and the present in the Luftka-Nmer 40 air is to the AaGeulu.n of aer AUelußöffnung 47 de ^ P. 3i -'jj. flvent iip delivered, ^ omit can ne ta *, i ^ ung and da "AuPerfunktione ^ ^j - ^ e: j - \ he invent ur.g ^ ge-r:; aS« i; V-: rr i ^ iiLung irr: Zuoa ^r : .Ef α '^4; rker: ίζίΛ ;' ί, τ -> t- ta Lii. "ni eier Ur« ^1. · - · ;; -ie? äIj ^; aii.ö "« forward

BATH ORIGINAL

- ίο -

On the other hand, the system has the solenoid operated Valve for there? Working in the device according to the invention independent of one? Working brake de? " Trailer a Raagnetspulenbeiä saturated valve 42, dag in the Luftzufuhrungsleicung 46 is arranged on which the air tank 32 de = · Trailer · = »connects to the double-acting valve 38, and en is.t an electrical wiring 43 and an operating switch (not shown j in the cab of the operator of the train machine provided in connection with an electrical conductor 44.

the actuation switch in the driver's cab is switched on is, the solenoid operated valve 42 is opened so that the compressed air present in the air reservoir 32 is guided through the air line 46 and the double-acting valve 38 and the relay valve 37 is reached. Hence the relay valve 37 actuated so that the inside of the air tank * » present compressed air is transferred into the air chamber 40, whereby the device according to the invention is started will.

If the actuation switch is "switched off", it is the magnetic coil actuated Valve 42 closed and the outlet port de.o valve 42 is opened, so that the pressure of the relay valve 37 reaching air is equal to the external pressure. Therefore, the outlet port 47 of the relay valve 37 is opened at the same time, gc that the inside of the air chamber 40 is present Air is released to the outside air.

One of the advantages achieved by the present invention is explained below: The Pig. 8 shows a complete trailer with Abutment 53, which is connected by a coupling part 52 (fifth wheel)

TQ98A6 / 049S BAD ORIG.NAL

is worn, and the trailer with clutch ”? et if t is pulled by a tractor. Since the coupling between the towing vehicle and the trailer is carried out by the articulated connection with a hook 51, the vehicles coupled to one another have two articulated connection points, ie the hook 51 and the coupling pin. When the trailer is driven backwards, the same cannot be controlled by operating the steering wheel by the operator because of the two articulated connections explained above. However, if the system is in the braking system of the trailer M

Has solenoid operated valve, kaoa the relative Movement between the coupling pin and the fifth wheel Use of the operating switch can be prevented or stopped by the operator, the two geleukigen Connection points to a joint-like connection point merge so that reversing in the same Way as to be operated in the l? All of a simple trailer can.

109846 / 0A96

Claims (6)

Fuji Heavy Industry Ltd patent claims 1. Coupling device for trailers, characterized in that that they have a coupling pin that is fixedly attached to a trailer, a rotating part that revolves around the coupling pin can rotate and on the lower surface of the same has an arrangement similar to that arranged on a towing vehicle Coupling part can come into engagement, and has a brake assembly which is capable of on the trailer to be attached for braking the rotatable part. 2. Coupling part according to claim 1, characterized in that the rotatable part is essentially in the form of a disk. 3. Coupling device according to claim 1, characterized in that the brake arrangement in the braking system of a trailer is present. 4. Coupling arrangement according to claim 1, characterized in that that the rotatable part is essentially in the form of a drum, the circumference of which has an annular flange, extending upwardly, the brake assembly in the form of a camming sole brake mechanism for the drum is present. 5. Coupling device according to Anpprüchen 1, 2 and 4, characterized in that the arrangement for engagement with the - 2 109846 / CU9S Coupling part arranged on the towing vehicle is present as an arm extending from the lower surface of the rotatable part extends from near below. 6. Coupling device according to Claim 1, characterized in that the rotatable part is essentially in the form of a rotatable lever, the brake part has a piston and cylinder arrangement which is connected to the rotatable lever on which the hydraulic resistance is exerted, a connecting pipe connects the piston cylinder with the supply of the hydraulic fluid, a solenoid-operated valve is present in the connecting pipe. BAD OHiGiNAL 1G98A6 / 0A9S Lee rs e ite