GB2457725A - Machines for manoeuvring trailers - Google Patents
Machines for manoeuvring trailers Download PDFInfo
- Publication number
- GB2457725A GB2457725A GB0803341A GB0803341A GB2457725A GB 2457725 A GB2457725 A GB 2457725A GB 0803341 A GB0803341 A GB 0803341A GB 0803341 A GB0803341 A GB 0803341A GB 2457725 A GB2457725 A GB 2457725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- moulding
- machine
- motor
- trailer
- 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- Withdrawn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
- 238000000465 moulding Methods 0.000 claims abstract description 107
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000013707 sensory perception of sound Effects 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D59/00—Trailers with driven ground wheels or the like
- B62D59/04—Trailers with driven ground wheels or the like driven from propulsion unit on trailer
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The machine (10) comprises a roller (56) having a peripheral friction surface (60), a motor (44), a transmission (38) for coupling the motor to the roller so that operation of the motor causes rotation of the roller about its axis (58) and a structure for mounting the motor, transmission and roller on the trailer for movement between a disengaged position in which the roller is disengaged from a trailer tyre and an engaged position in which the friction surface of the roller is pressed into engagement with the tread of the tyre so that rotation of the roller causes rotation of the tyre. The mounting structure comprises a first moulding or moulding assembly (14, 16) which spans the roller and on which the roller, transmission and motor are mounted, and a second moulding (12) or moulding assembly arranged to be rigidly mounted on the trailer, e.g. by a cross-beam (22) and on which the first moulding or moulding assembly is mounted for movement, e.g. on flanges (24) in a direction towards and away from the tyre. By providing these features with just two mouldings or moulding assemblies which may number for example two or three mouldings in total, the machine is particularly simple to construct.
Description
TITLE
Machines for manoeuvring trailers
DESCRIPTION
This invention relates to a machine for nlanoeuvring a trailer, such as a caravan or boat-trailer, for example to facilitate parking of the trailer when it is detached from its towing vehicle.
In particular, this invention relates to such a machine of' the general type comprising: a roller having a peripheral friction surface; a motor; a transmission for coupling the motor to the roller so that operation of the motor causes rotation of the roller about its axis; and means for mounting the motor, transmission and roller on the trailer for movement between a disengaged position in which, in use, the roller is disengaged from a tyre of the trailer and an engaged position in which, in use, the friction surface of the roller is pressed into engagement with the it) tread of the tyre so that rotation of the roller causes rotation of the tyre.
A number of designs of such machines are on the market and are described in the patent literature. Most of the known machines comprise a first structure welded and bolted up from shaped pieces of steel plate, bar and tube on which the roller, transmission and motor are mounted, and a second structure welded and bolted up from shaped pieces of steel plate, bar and tube on which the first structure is mounted for movement in a direction towards and away from the tyre.
An aim of a lirst aspect of the present invention, or at least of specific embodiments of it, is to provide a trailer inanoeuvring machine of simple construction that is more effective, reliable and long-lasting than the known machines.
The trailer manoeuvring machine of the lirst aspect of the invention is characterised with respect to the known machines of the general type described above in that the mounting means comprises: a first moulding or moulding assembly which spans the roller and on which the roller, transmission and motor are mounted; and a second moulding or moulding assembly arranged to he rigidly mounted on the trailer and on which the first moulding or moulding assembly is directly mounted for movement in a direction towards and away from the tyre. By providing all of these Features with just two mouldings or moulding assemblies which may number for example two or three mouldings in total, the machine is particularly simple to construct.
The machine preferably further includes means, such as an electrically-powered linear actuator, for moving the first and second mouldings or moulding assemblies between the disengaged and engaged positions and applying a lorce between the inouldings or moulding assemblies to hold the mouldings or moulding assemblies in the engaged position. the lörce being arranged to he applied substantially in a plane which is substantially normal to the axis of the roller substantially half-way along the friction surface of the roller. Due to this symmetrically geometry, the mouldings or moulding assemblies can be moved, and the force can be applied, more effectively, and any tendency to twist can he reduced.
The first moulding or moulding assembly is preferably mounted on the second moulding or moulding assembly for sliding movement between the disengaged and engaged positions. The sliding movement is preferably provided by a pair of complementary slideways between the first and second mouldings or moulding assemblies disposed substantially symmetrically with respect to a, or the, plane which is substantially normal to the axis of the roller substantially half-way along the friction surface of the roller. Again, due to this symmetrically geometry, the mouldings or moulding assemblies can be moved, and the firce can be applied, more effectively.
The roller is preferably mounted for rotation by a pair of bearings adjacent the opposite ends of the friction surlce. The lirsE moulding assembly preferably applies the lbrce to the roller to press the roller against the tyre generally symmetrically adjacent the ends of the roller.
The first moulding assenthly may comprise one moulding on which the transmission, motor and one of the hearings are mounted, and another moulding (16) attached to said one moulding and on which the other bearing is mounted.
The motor preferably has an armature mounted for rotation about an axis lying in a, or the, plane which is substantially normal to the axis of the roller substantially hallway along the friction surface of the roller. The motor armature, and therefore the motor as a whole for most designs ol motor, is symmetrically mounted on the machine.
The transmission preferably includes a gearbox, fOr example containing a worm and wheel, forming a motor-and-gearbox-unit with the motor, in which case, the motor-and-gearbox-unit is prefrahly mounted, as a unit, on the first moulding or moulding assembly. The gearbox may have an output shaft rotatable about an axis generally parallel to the roller axis, in which case the transmission preferably includes a gear train coupling the output shaft of the gearbox to the roller adjacent one end of the roller.
The first moulding or moulding assembly is preferably li)rmed to provide a guard portion extending alongside the roller and about half-way around the roller.
The machine preferably further includes an elongate brush mounted on the tirst moulding or moulding assembly alongside the roller and having bristles engaging the roller. The brush can therefore clean the roller as the roller rotates.
Each of the mouldings is preferably moulded from a composite material, such as an internally aerated nylon and glass Imbre mix, so as to provide a strolig, corrosion-free construction.
In accordance with a second aspect of the invention, there is provided a trailer having a tyred wheel and a machine as claimed in any preceding claim mounted on the trailer so that a, or the, plane which is substantially normal to the axis of the roller substantially half-way along the friction surface of the roller substantially coincides with a plane which is substantially normal to the axis of the wheel substantially half-way across the tread of the wheel's tyre.
A specific embodiment of the present invention will now he described, purely by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a trailer manoeuvring machine; Figure 2 is an exploded isometric view of the manoeuvring machine and a mounting bar; Figure 3 is a view from the front and one side of a moveable moulding of the machine; Figure 4 is a view from the rear and opposite side of the movable moulding: Figure 5 is an isometric view of a fixed moulding of the machine; Figure 6 is a schematic sectioned plan view of the machine in its disengaged position and a portion of a tyre, sectioned at the level of a roller axis of the machine; Figure 7 is similar to Figure 6, but with the machine in its engaged position; Figure 8 is similar to Figure 6, but sectioned at the level of a linear actuator of the machine; and Figure 9 is similar to Figure 8, hut with tile machine in its engaged position.
Referring to Figures 1 to 5 of the drawings. a trailer manoeuvring machine 10 has a lixed moulding 12, a movable moulding 14 and a bearing mounting plate 16, all inoulded from a composite material of nylon reinforced with glass fibre and internally foamed SO as to increase the strength-to-weight ratio of the material.
At one end 17, the fixed moulding 12 has a transverse rectangular hole 18 extending through it in the Y-Y' direction denoted in Figure 2, SO that the fixed moulding 12 can he attached, using a nut and bolt passing through a bolt-hole 20 (Figure 2), to a rectangular section tube 22 which in turn is clamped to the chassis of the trailer in a conventional manner so that the tube 22 extends transversely of the trailer and so that the end of the tube 22 is disposed in front of or behind a wheel of the trailer. The fixed moulding 12 has a pair of elongate parallel flanges 24 extending ill the X-X' direction and projecting outwardly from the fixed moulding in the opposite Y and Y' directions. At its other end 26, the fixed moulding 12 provides a mounting point 28 (Figure 5) for one end of an electrically-powered linear actuator 30 that extends centrally above the fixed moulding 12 and that is secured to the mounting point 28 by a transverse pin and spring clip.
The movable moulding 14 has a lower portion 32 formed with a pair of elongate mutually-facing channels 34 extending in the X-X' direction and configured so that the flanges 24 of the fixed moulding 12 can slide in the channels 34 of the movable moulding 14, so that the movable moulding 14 can slide relative to the fixed moulding 12 in the X-X' direction.
Above its lower portion 32, the movable moulding 14 has a motor-and-gearbox mounting portion 36. A gearbox 38 of a motor-and-gearbox assembly 40 is bolted inside the motor-and-gearbox mounting portion 36 to four mounting points 42 (Figure 4) with screw-threaded inserts. An electric motor 44 of the motor-and-gearbox assembly 40 is mounted on the gearbox 38 and projects rearwardly from the motor-and-gearbox mounting portion 36. The armature of the motor 44 drives a worm in the gearbox 38 about an axis extending in the X-X' direction, and a wheel driven by the worm in the gearbox 38 drives an output shaft about an axis 46 (Figure 4) extending in the Y-Y' direction. The output shall extends through, or is accessible through, a hole 48 in the side of the motor-and-gearbox mounting portion 36 of the movable moulding 14.
The other end 49 of the linear actuator 30 is secured to a mounting point on the lower portion 32 of the movable moulding 14 or more preferably on a portion of the housing of the motor-and-gearbox assembly 40 by a transverse pin 51 and spring clip 53.
In front of its motor-and-gearbox mounting portion 36, the movable moulding 14 has a roller mounting portion 50 lormed by a transverse C-shaped channel 52 extending in the Y-Y' direction and bounded at one end by a hearing mounting portion 54. The hearing mounting plate 16 is arranged to be secured by screws to the movable moulding 14 at the other end of the channel 52. The hearing mounting portion 54 of the movable moulding 14 and the hearing mounting plate 16 support bearings at either end of a friction roller 56 that extends along the channel 52 in the Y-Y' direction SO that the roller can rotate about the axis 58. The roller 56 has a peripheral friction surface 60 that partly projects forwardly out of the channel 52. The roller mounting portion 54 has a hole 62 on the axis 58, through which a reduced-diameter end of the roller 56 projects, or through which the end of the roller 56 is accessible. An elongate brush or comb 63 (Figure 2) having plastics, stainless steel or bronze bristles 65 is attached to the roller mounting portion 50 above the roller 56 so that the bristles 65 engage the peripheral friction surface 60 of the roller 56 aiid clean it as the roller 56 rotates.
To one side of its motor/gearbox mounting portion 36 and roller mounting portIon 50, the movable moulding 14 has a gear-train mounting portion 64 where: a driving spur gear (not shown) is mounted on the output shaft of the gearbox 38 for rotation with the output shaft about the axis 46; a driven spur gear (not shown) is mounted Ofl the friction roller 56 for rotation with the friction roller 56 about the axis 58; and an intermediate spur gear (not shown) is mounted on a spindle 66 litted to the gear-train niounting portion 64 so as to transmit drive l'roin the driving gear to the driven gear, driving, intermediate and driven gears forming a gear train 67 (Figures 6 and 7). Accordingly, upon operation of the motor 44 in one direction or the other, the roller 56 is rotated in one direction or the other around the axis 58. The driving gear and driven gear may be aligned, and the intermediate gear may be a single spur gear. Alternatively, the driving gear and driven gear may he offset, and the intermediate gear may be in the thriii of a double spur gear to provide a step-down in rotational speed. A moulded plastics cover 68 is fitted to the gear-train mounting portion 64 to enclose the gears.
A moulded plastics cover 70 is fitted to the motor/gearbox mounting portion 36 and secured thereto by screws 72 so as to cover the motor 44, the linear actuator 30 and the rear end of the fixed moulding 12.
Referring now also to Figures 6 to 9, in operation, the linear actuator 30 can be operated to extend itself and slide the movable moulding 14 relative to the fixed moulding 12 guided by the flanges 24 on the fixed moulding 12 sliding in the channels 34 in the movable moulding 14. At one extreme of the movement, a "disengaged" position, as shown in Figures 1, 6 and 8, the peripheral surface 60 of the friction roller 56 is spaced from the tread 74 of the tyre 76 on the wheel adjacent the machine 10 SO that the trailer can be towed in a conventional manner by a towing vehicle. At the other extreme of the movement, an "engaged" position, as shown in Figures 7 and 9, the peripheral surface 60 of the friction roller 56 is pressed into engagement with the tread 74 of the lyre 76. In the engaged position, the motor 44 can be operated so as to rotate the roller 56 and, due to the frictional engagement of the peripheral surface 60 of the roller 56 with the lyre 76, to rotate the trailer wheel. In practice, a pair of such machines 10 are mounted on the trailer SO as to drive wheels on opposite sides of the trailer. Accordingly, the motors 44 of the two machines 10 can be controlled in a known manner to drive the trailer forwards and backwards, to turn it to the right and the left when going lorwards and backwards, and to turn the trailer on the spot in either direction.
Referring specifically to the schematic diagrams of Figures 6 to 9, a central vertical plane of symmetry of the vehicle tyre 76 is shown by the dash-dot line 78. It should be noted that the machine 1() is mounted on the trailer such that the central plane 76 substantially equally bisects the peripheral surface 60 of the roller 56 SO that the reaction between the roller 56 and the tyre 76 in the engaged position is centred on the central plane 76. Also, the bearings k)r the roller 56 are supported by the hearing mounting portion 54 of the movable moulding 14 and the bearing mounting plate 16 substantially equidistantly from the central plane 78 so that the bearings are substantially equally loaded. Furthermore, the sliding flanges 24 and channels 34 are disposed substantially symmetrically about the central plane 78 and the line of action of the linear actuator 30 lies substantially in the central plane 78 to reduce any tendency of the movable moulding 14 to twist relative to the fixed moulding 12, as viewed from above, to reduce any tendency thr the flanges 24 to jam in the channels 34 and to reduce wear between the Ilanges 24 and channels 34. Moreover, the motor 44 and gearbox 38 assembly, which constitute a substantial proportion of the total weight off the machine 10, is substantially symmetrically disposed about the central plane 78 and is symmetrically mounted at the mounting points 42 on the movable moulding 14, so that the machine is well-balanced. Also.
the end 49 of the linear actuator 30 acts on the movable moulding 14 via a portion 80 of the housing of the gearbox 38 so as to spread force applied to the movable moulding 14. As a result of these features, a particularly effective machine 10 is provided.
It will be appreciated that many modihcations and developments may be made to the embodiment of the invention described above. For example, the mouldings 14.16 may instead he formed as a single moulding, or by two more-symmetrical mouldings joined along the centre plane 78.
It should be noted thai the embodiment of the invention has been described above purely by way of example and that many other modifications and developments may he made thereto within the scope of the present invention.
Claims (18)
- CLAIMSI. A machine (10) for manoeuvring a trailer comprising: a roller (56) having a peripheral friction surface (60); a motor (44); a transmission (38, 67) for coupling the motor to the roller so that operation of the niotor causes rotation of the roller about its axis (58); and means lör mounting the motor, transmission and roller on the trailer for movement between a disengaged position in which, in use, the roller is disengaged from a tyre (76) of the trailer and an engaged position in which, in use, the friction surface of the roller is pressed into engagement with the tread of the tyre so that rotation of the roller causes rotation of the tyre; characterised in that: the mounting means comprises: a first moulding or moulding assembly (14,16) which spans the roller and on which the roller, transmission and motor are mounted: and a second moulding (12) or moulding assembly arranged to be rigidly niounled on the IS trailer and on which the tirst moulding or moulding assembly is mounted for movement in a direction towards and away from the lyre.
- 2. A machine as claimed in claim 1, hirther including means (30) for applying a force between the first and second mouldings or moulding assemblies to hold the inouldings or moulding assemblies in the engaged position, the fOrce being arranged to he applied substantially in a plane (78) which is substantially normal to the axis of the roller substantially half-way along the friction surface of the roller.
- 3. A machine as claimed in claim 2, wherein the force applying means comprises an electrically-powered linear actuator (30).
- 4. A machine as claimed in any preceding claim, wherein the first moulding or moulding assembly is mounted on the second moulding or moulding assembly for sliding movement between the disengaged and engaged positions.
- 5. A machine as claimed in claim 4, wherein the sliding movement is provided by a pair of complementary slideways (24,34: 24,34) between the first and second mouldings or moulding assemblies disposed substantially symmetrically with respect to a, or the, plane (78) which is substantially normal to the axis of the roller substantially half-way along the friction surface of the roller.
- 6. A machine as claimed in any preceding claim, wherein the roller is mounted for rotation by a pair of' hearings adjacent the opposite ends of the friction surface.
- 7. A machine as claimed in claim 6, wherein the first moulding assembly comprises one mnouldmg (14) on which the transmission, motor and one of the hearings are mounted, and another moulding (16) attached to said OflC moulding and on which the other bearing is mounted.
- 8. A machine as claimed in any preceding claim, wherein the motor has an armature It) mounted for rotation about an axis lying in a, or the, plane (78) which is substantially normal to the axis of the roller substantially half-way along the friction surface of the roller.
- 9. A machine as claimed in any preceding claim, wherein the transmission includes a gearbox (38) lorniing a motor-and-gearbox-unit (40) with the motor.
- 10. A machine as claimed in claim 9, wherein the motor and gearbox unit is mounted, as a unit, on the first moulding or moulding assembly.
- 11. A machine as claimed in claim 9 or 10, wherein the gearbox has an output shaft rotatable about an axis (46) generally parallel to the roller axis (58).
- 12. A machine as claimed in claim 11, wherein the transmission includes a gear train (67) coupling the output shaft of the gearbox to the roller adjacent one end of the roller.
- 13. A machine as claimed in any preceding claim, wherein the first moulding or moulding assembly provides a guard portion (52) extending alongside the roller and about half-way around the roller.
- 14. A machine as claimed in any preceding claim, further including an elongate brush (63) mounted on the first moulding or moulding assembly alongside the roller and having bristles (65) engaging the roller.
- 15. A machine as claimed in any preceding claim, wherein each of the mouldings is moulded from a composite material.
- 16. A machine for rnanoeuvring a trailer, substantially as described with reference to the drawings.
- 17. A trailer having a lyred wheel and a machine as claimed in any preceding claim mounted on the trailer so that a, or the, plane which is substantially normal to the axis of the roller substantially half-way along the Iriclion surface of the roller substantially coincides with a plane which is substantially normal to the axis of the wheel substantially lialtway across the tread of the wheel's tyre.
- 18. A trailer substantially as described with reference to the drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0803341A GB2457725A (en) | 2008-02-25 | 2008-02-25 | Machines for manoeuvring trailers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0803341A GB2457725A (en) | 2008-02-25 | 2008-02-25 | Machines for manoeuvring trailers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0803341D0 GB0803341D0 (en) | 2008-04-02 |
| GB2457725A true GB2457725A (en) | 2009-08-26 |
Family
ID=39284459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0803341A Withdrawn GB2457725A (en) | 2008-02-25 | 2008-02-25 | Machines for manoeuvring trailers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2457725A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012102786U1 (en) * | 2012-07-25 | 2013-10-29 | Al-Ko Kober Se | support means |
| EP2910457A1 (en) * | 2014-02-19 | 2015-08-26 | Truma Gerätetechnik GmbH & Co. KG | Manoeuvring drive with splash guard for trailers and the like. |
| EP2957488A3 (en) * | 2014-03-31 | 2016-04-06 | Reich KG, Regel- und Sicherheitstechnik | Auxiliary drive unit for a trailer |
| DE202018101924U1 (en) * | 2018-04-10 | 2019-04-11 | Reich Gmbh Regel- Und Sicherheitstechnik | Auxiliary drive for a vehicle, in particular for a trailer, and trailers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1394024A2 (en) * | 2002-08-29 | 2004-03-03 | AL-KO Kober AG | Additional propulsion system for non-driven vehicles, especially trailers |
| EP1714859A1 (en) * | 2005-04-18 | 2006-10-25 | Truma Gerätetechnik GmbH & Co. KG | Compact auxiliary drive for a trailer |
| EP1764274A1 (en) * | 2005-09-16 | 2007-03-21 | Purple Line Limited | Apparatus for moving trailers |
| GB2435454A (en) * | 2005-11-15 | 2007-08-29 | Mark Darren Shaw | Composite guard fabrication for drive aid |
-
2008
- 2008-02-25 GB GB0803341A patent/GB2457725A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1394024A2 (en) * | 2002-08-29 | 2004-03-03 | AL-KO Kober AG | Additional propulsion system for non-driven vehicles, especially trailers |
| EP1714859A1 (en) * | 2005-04-18 | 2006-10-25 | Truma Gerätetechnik GmbH & Co. KG | Compact auxiliary drive for a trailer |
| EP1764274A1 (en) * | 2005-09-16 | 2007-03-21 | Purple Line Limited | Apparatus for moving trailers |
| GB2435454A (en) * | 2005-11-15 | 2007-08-29 | Mark Darren Shaw | Composite guard fabrication for drive aid |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012102786U1 (en) * | 2012-07-25 | 2013-10-29 | Al-Ko Kober Se | support means |
| EP2910457A1 (en) * | 2014-02-19 | 2015-08-26 | Truma Gerätetechnik GmbH & Co. KG | Manoeuvring drive with splash guard for trailers and the like. |
| EP2957488A3 (en) * | 2014-03-31 | 2016-04-06 | Reich KG, Regel- und Sicherheitstechnik | Auxiliary drive unit for a trailer |
| EP2952421A3 (en) * | 2014-03-31 | 2016-06-22 | Reich KG, Regel- und Sicherheitstechnik | Auxiliary drive for a trailer and trailer |
| DE202018101924U1 (en) * | 2018-04-10 | 2019-04-11 | Reich Gmbh Regel- Und Sicherheitstechnik | Auxiliary drive for a vehicle, in particular for a trailer, and trailers |
| EP3552932A1 (en) * | 2018-04-10 | 2019-10-16 | Reich GmbH Regel- und Sicherheitstechnik | Trailer and vehicle auxiliary drive particularly for a trailer |
| EP4242090A1 (en) * | 2018-04-10 | 2023-09-13 | Reich GmbH Regel- und Sicherheitstechnik | Auxiliary drive for a vehicle, in particular for a trailer, and trailer |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0803341D0 (en) | 2008-04-02 |
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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) |