GB2077698A - Trailer with lifting gear - Google Patents
Trailer with lifting gear Download PDFInfo
- Publication number
- GB2077698A GB2077698A GB8118443A GB8118443A GB2077698A GB 2077698 A GB2077698 A GB 2077698A GB 8118443 A GB8118443 A GB 8118443A GB 8118443 A GB8118443 A GB 8118443A GB 2077698 A GB2077698 A GB 2077698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trailer
- tow bar
- lift mast
- axle
- mast assembly
- 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.)
- Withdrawn
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
- B62D53/0857—Auxiliary semi-trailer handling or loading equipment, e.g. ramps, rigs, coupling supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
A trailer has a wheeled axle (10) with a tow bar (12) extending forwardly therefrom and with a lift mast assembly (11) pivoted thereto and its carriage (17) (Fig. 2, not shown) faces rearwardly. Rearwardly extending attachments e.g. forks (14) are mountable on said carriage. A length-adjustable link (15) is mounted between anchorage points 15A on the tow bar (12) and the assembly (11) for angular adjustment of the assembly (11) relative to the tow bar (12). <IMAGE>
Description
SPECIFICATION
A trailer
This invention relates to a trailer to be towed by a vehcile, for example a tractor.
According to the present invention, there is provided, a trailer comprising a wheeled axle with a tow bar extending forwardly therefrom and a lift mast assembly pivoted thereto for a carriage thereof to face rearwardly for mounting rearwardly extending attachments, and means being provided between the lift mast assembly and the tow bar for controlling angular adjustments of the lift mast assembly relative to the axle.
Preferably, the angular adjustment means is a length-adjustment link mounted between anchorage points on the lift mast assembly and on the tow bar.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a side view of a trailer according to the present invention; and
Figure 2 is a plan view.
Referring to the drawings, a trailer comprises a wheeled axle 10 with a tow bar 1 2 extending forwardly at right angles to said axle 1 0. A lift mast assembly 11 is pivoted to said axle 10 and its carriage 1 7 faces rearwardly. The tow bar 1 2 extends from mid-way of the axle 10, and two braces are secured between the tow bar 1 2 and axle 10 symmetrically of said tow bar 1 2. For mounting the lift mast assembly, the axle 10 has symmetri cally thereof two spaced apertured lugs 1 OA and the lift mast assembly 11 has two sets of two aperatured lugs 11A, the sets being spaced apart and the lugs of each set being spaced apart such as to accommodate the lugs 10A therebetween.The assembly 11 is connected to the axle 10 by pivot pins 9 passing through aligned apertures in lugs 1 or, 11 A. A length-adjustable link 1 5 connects the assembly 11 to the tow bar 12, the link being pivotally anchored at each end to an anchorage point 1 5A on the assembly 11 and tow bar 1 2 respectively. The link 1 5 by which angular adjustment of the lift mast assembly 11 relative to the axle 10 is controlled is shown as a hydraulic ram, but may simply be a screw length-adjustable member, commonly known as a top link for use with the three-point linkage of a tractor. The lift mast can thereby, when loaded, be tilted forwardly of the trailer to move the centre of gravity of the load forwardly about its pivots 9.The lift mast assembly is of conventional construction and its carriage is for friction or roller movement relative to the mast. Two forks or tines 1 4 are provided for mounting on the carriage to extend rearwardly therefrom, and other conventional attachments can be provided for selective use, one at a time, with the carriage of the lift mast. The attachments may, for example be those commonly referred to as a block bale handler, a pipe and log grab, a push-off grab, a silage grape, a box-handler tipper, a link box or a bucket.The carriage of the lift. mast is moved relative thereto under the influence of a hydraulic ram (not shown) anchored adjacent to the bottom of the lift mast and to the outer end of the piston of which is connected either a chain (not shown) entrained around a sprocket wheel and connected to the carriage, or a rope (not shown) running in a pulley and connected to the carriage. The sprocket wheel or pulley is mounted for rotatable movement on a spindle mounting (not shown) transversing the lift mast at the top thereof and movement of the marriage up and doVJn the lift mast is controlled by the retraction and extension of the carriage ram.The carriage ram (not shown) and the link ram 1 5 are for connection to a fluid supply through hoses, and most suitably, the fluid supply of a tractor is used. If no fluid supply is availabie on the towing vehicle, then a pump and a fluid tank is provided on the trailer, the pump being driven by the engine of the vehicle. Ballasting may be provided at the forward end of the tow bar 12, if necessary. The tow bar 1 2 may be telescopic. A height-adjustable foot 1 6 is provided to support the outer end of the tow bar 1 2 when the trailer is not in use.
The trailer is hitched on to a tractor or other vehicle and the lift mast assembly is used in conventional manner. The trailer has been developed primarily for use in handling palleted loads since a problem exists in handling bagged feedstuffs and fertilisers which are delivered to, for e,çample farmers in palleted loads of 2 tons and have to be manhandled by the farmer to a storage location.Alternatively, the farmer has to invest in a lift mast assembly attachment for fitting to the threepoint linkage at the rear end of a tractor or to front end forward reach arms which, in any case, cannot lift loads oi 2 ton An advantage of the present invention is that the trailer can be hitched onto and unhitched from the tractor or other vehicle in a relatively short period of time whereas to mount and demount a lift mast assembly attachment requires about half a day.
The trailer has also applications in other fields, such as on small building sites where it would be uneconomic to use fork lift trucks.
The centres of gravity between the unloaded lift mast assembly and ale, and the axle and outer end of the tow bar are preferably in the ratio of 1:3.
1. A trailer comprising a wheeled axle with a tow bar extending forwardly therefrom and a lift mast assembly pivoted thereto for a
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A trailer comprising a wheeled axle with a tow bar extending forwardly therefrom and a lift mast assembly pivoted thereto for a carriage thereof to face rearwardly for mounting rearwardly extending attachments, and means being provided between the lift mast assembly and the tow bar for controlling angular adjustment of the lift mast assembly relative to the axle.
2. A trailer as claimed in Claim 1, wherein the angular adjustment means is a lengthadjustable link mounted between anchorage points on the lift mast assembly and on the tow bar.
3. A trailer as claimed in Claim 2, wherein the link is a hydraulic ram.
4. A trailer as claimed in Claim 2, wherein the link is a screw length-adjustable member.
5. A trailer as claimed in Claim 1, 2 or 3, wherein the tow bar is telescopic.
6. A trailer substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8118443A GB2077698A (en) | 1980-06-17 | 1981-06-16 | Trailer with lifting gear |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8019757 | 1980-06-17 | ||
GB8118443A GB2077698A (en) | 1980-06-17 | 1981-06-16 | Trailer with lifting gear |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2077698A true GB2077698A (en) | 1981-12-23 |
Family
ID=26275908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8118443A Withdrawn GB2077698A (en) | 1980-06-17 | 1981-06-16 | Trailer with lifting gear |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2077698A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2669319A1 (en) * | 1990-11-21 | 1992-05-22 | Grassi Jean Claude | Universal pallet and palox transporter |
GB2283229A (en) * | 1993-10-18 | 1995-05-03 | Patrick Kyne | A lifting attachment for a vehicle |
GB2307223A (en) * | 1995-11-20 | 1997-05-21 | John Mckeown | Fork-Lift Trailer |
US20170120794A1 (en) * | 2015-11-04 | 2017-05-04 | Gerard Muegerl | Dual Axis Tow Lift |
-
1981
- 1981-06-16 GB GB8118443A patent/GB2077698A/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2669319A1 (en) * | 1990-11-21 | 1992-05-22 | Grassi Jean Claude | Universal pallet and palox transporter |
GB2283229A (en) * | 1993-10-18 | 1995-05-03 | Patrick Kyne | A lifting attachment for a vehicle |
GB2307223A (en) * | 1995-11-20 | 1997-05-21 | John Mckeown | Fork-Lift Trailer |
GB2307223B (en) * | 1995-11-20 | 1999-11-10 | John Mckeown | Fork-lift trailer |
US20170120794A1 (en) * | 2015-11-04 | 2017-05-04 | Gerard Muegerl | Dual Axis Tow Lift |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |