GB428046A - Improvements in or relating to means for coupling road vehicles - Google Patents
Improvements in or relating to means for coupling road vehiclesInfo
- Publication number
- GB428046A GB428046A GB2587733A GB2587733A GB428046A GB 428046 A GB428046 A GB 428046A GB 2587733 A GB2587733 A GB 2587733A GB 2587733 A GB2587733 A GB 2587733A GB 428046 A GB428046 A GB 428046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- turntable
- frame
- trailer
- steering
- pin
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
- B62D13/02—Steering specially adapted for trailers for centrally-pivoted axles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
428,046. Tractor-trailer couplings. MACKAY, A. J., 2, Walfield Avenue, Whetstone, London. Sept. 19, 1933, No. 25877. [Class 79 (iii)] Relates to coupling devices for road trailers incorporating steering means which turn the front wheels of the trailer in the same direction as the coupling member for forward traction and in the reverse direction to that of the coupling member for backing movements, and comprises a trailer vehicle having a front steerable road wheel or wheels and non- steerable road wheels characterized by a steering member which is secured to the turntable framing carrying the steerable wheels for forward traction and is alternatively fulcrumed on the trailer main frame for reverse steering during backing movements. In the arrangement shown in Figs. 1 and 4, the coupling member h is horizontally hinged to the arms s<1> of a Y-shaped steering member S mounted on a pivot P<2> and connected to the trailer turntable t by a slot c<1> in the rear limb s<3> in which engages a block c on a pin P<1> fixed eccentrically in the turntable. The turntable t with the wheel frame f is rotatably mounted in the trailer frame F by lugs b rabbeted over the edge of a circular opening in a plate p attached to the frame F. The pivot P<2> of the steering member S is carried by radial extensions p<5> of a pair of annular plates p<3>, p<6> which are secured together by vertical spacing members and rotatably surround the turntable t. For forward traction, the plates p<3>, p<6> are locked to the turntable so that this and the steering wheels w move unitarily with the steering member S. For reversing operations, the plates p<3>, p<6> are locked to the trailer frame F so that the steering member S, fulcrumed on the pivot P<2>, turns the turntable through the pin-andslot connection P<1>, c<1>, in the opposite direction to that taken by the coupling member h. To connect the plates p<3>, p<6> alternatively to the trailer frame or the turntable, stop members r, r<9> are provided in a frame r<1> carried by the extensions p<5>, the stop member r comprising a slidable plate adapted to be moved radially inwards to engage a notch or recess p<2> in the edge of the turntable frame whilst the stop r<9> comprises a pivoted arm adapted to be moved outwards into engagement with a notch F<2> in apart F<1> of the trailer frame F. The operations are effected by a hand lever r<6> through a rod r<5> slidable in a bearing bracket r<20> in the frame r<1> and acting according to the tractive direction on the slide r<1> or the arm r<9> through springs r<11> as shown in Fig. 1. A catch r<15> holds the lever r<6> when depressed as shown with the stop r<9> in engagement with the notch F<2>. In the alternative actuation, the slide r may be secured in engagement with the recess p<2> by a screw-stop r<13>. The coupling member h is resiliently connected to the tractor T by a pivoted swivel-pin h<9> acting through springs h', h<8>. This arrangement enables the lever r<6> to be replaced, if desired, by a lever linkage connection to the pin h<9> controlling the engagement of the stops r, r<9> automatically according to the direction of tractive effort. A simpler form of the invention is shown in Fig. 9, wherein a drawbar h, having eccentric pin-andslot engagement P<1> with the turntable, moves longitudinally so that, for forward traction a pin P<2> thereon engages a notch f<5> in a frame f integral with the turntable t whilst, on backing movement, its rear end engages a recess F<5> in the trailer frame member F thereby reversing the steering effect. In another form, shown in Fig. 5, a toothed segment n to which the coupling member h is hinged, and which meshes with a segment m controlling the steering wheels, is fulcrumed to the main trailer frame by a pivot P<2> or alternatively fixed to the turntable f by pins A<1>, A<2>. Instead of toothed members, segments connected by chains or cables arranged on their peripheries may be employed. In a modification of the toothed form, Fig. 6 (not shown), locking detents or stops engaging notches in the edge of the segments are provided, the pins A<1>, A<2> being omitted. In a further arrangement, Fig. 7, the coupling member h is hinged to a plate n<3> having an internally toothed opening surrounding the turntable pivot b<2> and meshing with a set of planet pinions n<5> mounted on a secondary plate n<1>, the planet pinions also meshing with a central or sun gear wheel formed on the pivotal boss m<1> of the turntable, the boss being rotatably connected to the trailer frame F by lugs b<2>. For backing movements of the vehicles, the planet carrier plate n<1> is connected to the frame F by a pin A<1> introducing reversing gearing between the steering plate n<3> and the turntable frame f. For forward traction the pin A<1> is inserted in holes n<6>, n' connecting the plate n<3> directly to the turntable.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR778577D FR778577A (en) | 1933-09-19 | ||
GB2587733A GB428046A (en) | 1933-09-19 | 1933-09-19 | Improvements in or relating to means for coupling road vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2587733A GB428046A (en) | 1933-09-19 | 1933-09-19 | Improvements in or relating to means for coupling road vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB428046A true GB428046A (en) | 1935-04-23 |
Family
ID=10234821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2587733A Expired GB428046A (en) | 1933-09-19 | 1933-09-19 | Improvements in or relating to means for coupling road vehicles |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR778577A (en) |
GB (1) | GB428046A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3618982A (en) * | 1969-07-18 | 1971-11-09 | Caterpillar Tractor Co | Drawbar for articulated vehicle |
FR2645105A1 (en) * | 1989-02-08 | 1990-10-05 | Destandau Charles | Device for manoeuvring trailers with at least two axles, which is suitable in particular for moving in reverse |
US6135484A (en) * | 1995-12-27 | 2000-10-24 | Tamrock Oy | Tow bar construction for transport vehicles and transport vehicle combinations, and a transport vehicle combination |
DE102020115469A1 (en) | 2020-06-10 | 2021-12-16 | Sommer Gmbh | Dolly trailer, train pair with such a dolly trailer and method for operating such a train pair |
-
0
- FR FR778577D patent/FR778577A/fr not_active Expired
-
1933
- 1933-09-19 GB GB2587733A patent/GB428046A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3618982A (en) * | 1969-07-18 | 1971-11-09 | Caterpillar Tractor Co | Drawbar for articulated vehicle |
FR2645105A1 (en) * | 1989-02-08 | 1990-10-05 | Destandau Charles | Device for manoeuvring trailers with at least two axles, which is suitable in particular for moving in reverse |
US6135484A (en) * | 1995-12-27 | 2000-10-24 | Tamrock Oy | Tow bar construction for transport vehicles and transport vehicle combinations, and a transport vehicle combination |
DE102020115469A1 (en) | 2020-06-10 | 2021-12-16 | Sommer Gmbh | Dolly trailer, train pair with such a dolly trailer and method for operating such a train pair |
DE102020115469B4 (en) | 2020-06-10 | 2022-04-21 | Sommer Gmbh | Dolly trailer, train with such a dolly trailer and method for operating such a train |
Also Published As
Publication number | Publication date |
---|---|
FR778577A (en) | 1935-03-15 |
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