GB2200334A - Saddle coupling with a coupling plate - Google Patents

Saddle coupling with a coupling plate Download PDF

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Publication number
GB2200334A
GB2200334A GB08702112A GB8702112A GB2200334A GB 2200334 A GB2200334 A GB 2200334A GB 08702112 A GB08702112 A GB 08702112A GB 8702112 A GB8702112 A GB 8702112A GB 2200334 A GB2200334 A GB 2200334A
Authority
GB
United Kingdom
Prior art keywords
coupling
coupling plate
plate
wearing members
wearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08702112A
Other versions
GB8702112D0 (en
GB2200334B (en
Inventor
Lothar Jakob
Hans Kopp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Publication of GB8702112D0 publication Critical patent/GB8702112D0/en
Publication of GB2200334A publication Critical patent/GB2200334A/en
Application granted granted Critical
Publication of GB2200334B publication Critical patent/GB2200334B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D53/00—Tractor-trailer combinations; Road trains
    • B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
    • B62D53/08—Fifth wheel traction couplings
    • B62D53/0885—Comprising devices to limit or to compensate for wear or excessive play; Lubricating, shock absorbing, bearing devices, or the like

Abstract

There is disclosed a fifth wheel trailer coupling comprising a saddle having a coupling plate 1, in which wearing members 4 are arranged on the coupling plate at least at surface regions thereof which are greatly exposed to abrasion in service. These wearing members increase the service life of the coupling plate by strengthening the regions which are exposed to considerable wear, as a result of continuous friction with the usual steel supporting plate, particularly in the vicinity of bearing pockets on the outer marginal region of the coupling plate. The wearing members are introduced into the most highly stressed regions in the top of the coupling plate, and may be cast into the coupling plate or mechanically joined thereto. The service life of the coupling plate is therefore extended, with consequent economies. <IMAGE>

Description

SADDLE COUPLING WITH A COUPLING PLATE This invention relates to a fifth wheel trailer coupling comprising a coupling plate.
In the case of a saddle coupling of a fifth wheel trailer coupling, a saddle support with counterplate is located on the coupling plate, which is in constant frictional contact with a counterplate. When travelling and as a function of the field of use, dust and dirt penetrate between the counterplate and the coupling plate and lead to abrasion of the coupling plate surface. As the generally steel support plate is rigid, it runs along the outer marginal region edge during turning. This leads to a very considerable surface pressure and in certain circumstances the coupling plate can be frictionally stressed to such an extent that holes occur therein in the vicinity of the bearing pockets. It is then necessary to replace the coupling plate. It is obvious that abrasion or wear to the coupling plate surface must not be allowed to continue until strength of the plate is prejudiced.
The present invention therefore seeks to provide an arrangement which greatly absorbs and reduces abrasive wear, and is intended to be constructionally uncomplicated and inexpensive, whilst increasing the life of the complete coupling.
According to the invention there is provided a fifth wheel trailer coupling comprising a saddle having a coupling plate, in which wearing members are arranged on the coupling plate at least at surface regions thereof which are greatly exposed to abrasion in service.
A preferred embodiment of fifth wheel trailer coupling according to the invention is described hereinafter relative to the accompanying drawing which is diagrammatic plan view.
Referring to the drawing, there is shown a coupling plate 1, of a saddle of a fifth wheel trailer coupling which is provided on its bottom surface with recesses 2 for receiving bearing blocks (not shown). As high friction is to be expected in the vicinity of the bearing pockets, i.e.
recesses 2, a respective wearing plate members 4 is provided at each high abrasion region of the upper surface of the coupling plate 1. The latter is preferably made from steel and can be cast into the plate material. The plate material is generally a GGG casting, steel casting or of sheet steel. The wearing plates can also be fixed with the aid of screws. A screw coupling naturally has the advantage of replaceability, which is necessary if the plate has become worn-through.
The wearing plate and coupling plate surfaces do not have to be in the same plane. An arrangement can be provided having a height difference between the two surfaces, the coupling plate surface being higher than the wearing plate surface, so that they only become level after considerable abrasive wear.
The proposed solution contributes of mitigating wear problems in fifth wheel couplings is achieved by ensuring that the life of the coupling plate is greatly extended.
As a function of the normal use, coupling plates of existing "saddles" normally have to be periodically replaced. A significant saving can be obtained through the use of the described arrangement.
The wearing plates or members 4 can be made from different materials, such as cast materials, steel and plastics.
It is also possible to use composites. It is also possible to provide fillers made from especially wearresistant materials in the wearing member, e.g. chill castings, such as granulated metal or plates can be cast into a GGG matrix.

Claims (10)

1. A fifth wheel trailer coupling comprising a saddle having a coupling plate, in which wearing members are arranged on the coupling plate at least at surface regions thereof which are greatly exposed to abrasion in service.
2. A coupling according to Claim 1, in which the wearing members are cast into the coupling plate.
3. A coupling according to Claim 1, in which the wearing members are mechanically connected to the coupling plate in such a way that positive and non-positive connection occurs.
4. A coupling according to Claim 3, in which the wearing members are connected to the coupling plate by means of screws or bonding.
5. A coupling according to any one of the preceding claims, in which the surfaces of the wearing members are flush with the surface of the coupling plate.
6. A coupling accomHin to any one of Claims 1 to 4, in which the surfaces of the wearing members are at a different level to the surface of the remaining areas of the coupling plate.
7. A coupling according to Claim 6, in which the surfaces of the wearing members are located at a lower level than the surface of the coupling plate.
8. A coupling according to any one of the preceding claims, in which the wearing members are made from metal castings, steel or plastics.
9. A coupling according to Claim 8, in which the wearing members are formed by composites and/or have fillers.
10. A coupling according to Claim 1 and substantially as hereinbefore described with reference to, and as shown in the accompanying drawing.
GB8702112A 1985-08-16 1987-01-30 Saddle coupling with a coupling plate Expired - Fee Related GB2200334B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH353785A CH667055A5 (en) 1985-08-16 1985-08-16 FIFTH FIFTH WHEEL WITH A CLUTCH PLATE.

Publications (3)

Publication Number Publication Date
GB8702112D0 GB8702112D0 (en) 1987-03-04
GB2200334A true GB2200334A (en) 1988-08-03
GB2200334B GB2200334B (en) 1991-01-09

Family

ID=4258128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8702112A Expired - Fee Related GB2200334B (en) 1985-08-16 1987-01-30 Saddle coupling with a coupling plate

Country Status (8)

Country Link
BE (1) BE1000280A3 (en)
CH (1) CH667055A5 (en)
DE (1) DE3701153A1 (en)
ES (1) ES2008879A6 (en)
FR (1) FR2609957B1 (en)
GB (1) GB2200334B (en)
NL (1) NL8700142A (en)
SE (1) SE463811B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431424A (en) * 1994-04-07 1995-07-11 Colwell; J. Bruce Fifth wheel slip plate
US5482308A (en) * 1994-06-27 1996-01-09 Marcu; Mihail I. Fifth wheel bearing plate improvements

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680847A5 (en) * 1989-08-25 1992-11-30 Fischer Ag Georg
US5522613A (en) * 1994-09-28 1996-06-04 Holland Hitch Company Self lubicating fifth wheel hitch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704924A (en) * 1971-03-12 1972-12-05 Randy W Lowry Removable wear plate for fifth wheel
US3801136A (en) * 1973-01-26 1974-04-02 Cunha Prod Inc Lubricant drip preventer for a fifth wheel
GB1559126A (en) * 1975-08-06 1980-01-16 Delta Metall Fahrzeugtech Semitrailer coupling
EP0058732A1 (en) * 1981-02-21 1982-09-01 Walter Hunger Low-friction saddle coupling
EP0117319A1 (en) * 1983-02-28 1984-09-05 Industries Plastiques Cham-Co Inc. Tractor fifth wheel bearing attachment
EP0130402B1 (en) * 1983-07-01 1991-05-15 Georg Fischer Aktiengesellschaft Fifth wheel coupling saddle plate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351305A (en) * 1962-04-27 1964-01-31 Fischer Ag Georg Device for improving the wear and sliding properties of tractor-trailer hitches
DE1228940B (en) * 1962-04-27 1966-11-17 Fischer Ag Georg Sliding connection of a semi-trailer coupling with coupling plate and skid plate
BE662476A (en) * 1965-04-14 1965-10-14 Acec Crapaudine, especially for railway wagons
US3944298A (en) * 1975-02-24 1976-03-16 Westinghouse Air Brake Company Truck bolster center bowl wear plate
US4308801A (en) * 1977-10-11 1982-01-05 Dayco Corporation Reinforced center bearing liner
US4341162A (en) * 1980-08-18 1982-07-27 Dayco Corporation Railway center plate liner
US4567833A (en) * 1984-09-20 1986-02-04 Holland Company Composite constant contact side bearing for railroad cars
FR2584670B1 (en) * 1985-07-15 1989-12-29 Mamery Gaby SELF-LUBRICATING DEVICE FOR HITCHING SEMI-TRAILER MACHINES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704924A (en) * 1971-03-12 1972-12-05 Randy W Lowry Removable wear plate for fifth wheel
US3801136A (en) * 1973-01-26 1974-04-02 Cunha Prod Inc Lubricant drip preventer for a fifth wheel
GB1559126A (en) * 1975-08-06 1980-01-16 Delta Metall Fahrzeugtech Semitrailer coupling
EP0058732A1 (en) * 1981-02-21 1982-09-01 Walter Hunger Low-friction saddle coupling
EP0117319A1 (en) * 1983-02-28 1984-09-05 Industries Plastiques Cham-Co Inc. Tractor fifth wheel bearing attachment
EP0130402B1 (en) * 1983-07-01 1991-05-15 Georg Fischer Aktiengesellschaft Fifth wheel coupling saddle plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431424A (en) * 1994-04-07 1995-07-11 Colwell; J. Bruce Fifth wheel slip plate
US5482308A (en) * 1994-06-27 1996-01-09 Marcu; Mihail I. Fifth wheel bearing plate improvements

Also Published As

Publication number Publication date
ES2008879A6 (en) 1989-08-16
SE8700168L (en) 1988-07-17
NL8700142A (en) 1988-08-16
GB8702112D0 (en) 1987-03-04
FR2609957A1 (en) 1988-07-29
SE8700168D0 (en) 1987-01-16
CH667055A5 (en) 1988-09-15
GB2200334B (en) 1991-01-09
FR2609957B1 (en) 1991-08-30
BE1000280A3 (en) 1988-10-04
SE463811B (en) 1991-01-28
DE3701153A1 (en) 1988-07-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee