CA2267140A1 - Swivel wheel trailer - Google Patents
Swivel wheel trailer Download PDFInfo
- Publication number
- CA2267140A1 CA2267140A1 CA 2267140 CA2267140A CA2267140A1 CA 2267140 A1 CA2267140 A1 CA 2267140A1 CA 2267140 CA2267140 CA 2267140 CA 2267140 A CA2267140 A CA 2267140A CA 2267140 A1 CA2267140 A1 CA 2267140A1
- Authority
- CA
- Canada
- Prior art keywords
- trailer
- type
- car
- backing
- plate
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/122—Attachments or mountings where coils, e.g. end coils, of the spring are rigidly clamped or similarly fixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
- B60G11/16—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/06—Trailers
- B62D63/061—Foldable, extensible or yielding trailers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/06—Trailers
- B62D63/062—Trailers with one axle or two wheels
- B62D63/065—Trailers with one axle or two wheels forming an extension of the towing vehicle, i.e. with two point fixation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/13—Independent suspensions with longitudinal arms only
- B60G2200/132—Independent suspensions with longitudinal arms only with a single trailing arm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/12—Wound spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/124—Mounting of coil springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
- B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/04—Trailers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/40—Variable track or wheelbase vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
- B60G2800/203—Stationary vehicle lowering the floor for loading/unloading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/24—Steering, cornering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
This invention relates to an automotive type utility trailer which main features are. The ease of operation when backing off (reverse) with the car and ease of dumping, when you want to load or unload a recreational vehicule or any other thing.
Everybody who used a trailer as had problems when backing o~~in an awkward place and a lot of people do not use trailers because it is hard to manoeuvre.
With the frailer, backing off is not more difficult than when you back off with the car only, since there is no pivoting point between the car and the trailer, the trailer only moves up and down to absorb the bumps in the terrain.
With the increasing popularity of all kinds of recreational vehicule, there is good market for small trailers made for that special application.
Everybody who used a trailer as had problems when backing o~~in an awkward place and a lot of people do not use trailers because it is hard to manoeuvre.
With the frailer, backing off is not more difficult than when you back off with the car only, since there is no pivoting point between the car and the trailer, the trailer only moves up and down to absorb the bumps in the terrain.
With the increasing popularity of all kinds of recreational vehicule, there is good market for small trailers made for that special application.
Description
BACKGROUND OF THE INVENTION
This invention relates to an automotive type utility trailer which main features are. The ease of operation when backing off (reverse) with the car; and ease of dumping, when you want to load or unload a recreational vehicule or any other thing.
Everybody who used a trailer as had problems when backing off in an awkward place, and a lot of people do not use trailers because it is hard to manoeuvre.
With the trailer, backing off is not more difficult than when you back off with the car only, since there is no pivoting point between the car and the trailer, the trailer only moves up and down to absorb the bumps in the terrain.
With the increasing popularity of all kinds of recreational vehicule, there is a good market for small trailers made for that special application.
Brief summary of the invention The two main feature of the trailer are the double pole system and the 2 swivel wheels.
The double pole keeps the trailer in alignment with the car at every moment, while going forward or backward. The swivel wheel that are offset from there pivoting point take a rear position when going forward and pivot in the curves; and when you back off, the wheels automatically pivot and take a forward position (see figure 2) that will prepare the trailer for it's dumping position.
When the wheels are in the forward position, it take a lot of weight off the front of the trailer and helps the unloading of the vehicule on the trailer. It also reduces the angle of the plateform while unloading. In fact, the weels have to be in the forward position for the plateform to swivel and unload. To get the weels in that position you have to back off for a couple of feet starting with a little look to help the pivoting of the trailer wheels.
One more advantage of the trailer is it's reduced lenght, since there is no pivoting point between the car and the trailer like ordinary one pole trailers.
P.l Brief description of the drawings Figure 1 View from the top of the trailer, the two poles and the bumper of the towing car or truck.
Figure 2 Side view of the trailer with the two position of the pivoting wheels and the dumping position (shown in doted line) Figure 3 Side view in it's dumping position. And the forward position of the wheels.
Figure 4 View from the bottom of the trailer with the pivoting wheels position.
Figure 5 Side view of the wheel system Figure 6 Rear view of the wheel system Figure 7 Bottom view of the wheel system Figure 8 Front view of the wheel system Figure 9, 70 and 77 Exploded view of the wheel system.
Description of the preferved embodiments ~ Figure 1 Shows a top view of the trailer (96) and the bumper of the towing car or truck (95). The two attaching point on the car (97) are welded on the transverse bar (hitch) that is fixed under the car.
The extention tube beam (99) goes in the tube (97) and is fixed with a pin (98) and a counterpin. The part (100) is a standard trailer ball, part (101) is a standard trailer hand that goes in part (100).
A trailer jack (102) with a wheel at it's bottom end is fixed in the middle of the trailer.
Part (103) is a plate to hold the jack. The pole (104) of the trailer can be very short, since there is no pivot point. In the front area of the trailer, a frame (105) is installed to give streight to the plateform and give attaching point for the cargo.
~ Figure 2 Gives a side view of the trailer. An important point as to be explained here;
the attaching points on the car have to be positionned so the plate form of the trailer is horizontal or slightly going down toward the car (the front end of the trailer can be arround 5 cm lower than the rear end).
P.2 ~~'~; .
Part (101) is a standard trailer hand. Part (102) is a jack with wheel, plate (103) is welded to the trailer and holds the jack in position. The jack can be stored in an horizontal position when not needed. Part (104) are the 2 trailer poles. A
frame (105) is installed in the front of the plate form to give streight to the trailer. A plate (106) and a frame made of tube beam forms the plate form of the trailer. Part (1 ) is a steel plate welded to the frame wich fonction is to hold the wheel assembly.
Bottom plate (2) holds the bracket (5) and the anchoring point for the suspension (7). Bolt (6) holds the 2 suspension arms (10) to the backet, a wheel axle (16) holds the wheel between the two suspension arms(10). A floor bumper (114) is placed at the rear end of the trailer to protect when in dumping position.
Figure 3 show a side view of the trailer in it's dumping position. We can see here that when the wheels are in the forward position (after backing off) a lot of the cargo weight is transfered over the pivoting point; this results in a very easy unloading of the cargo.
Part (97) is a tube beam welded to the hitch of the car or truck, tube beam (99) goes into the fixed part (97). Part (102) is a lifting jack, part (103) is the plate that holds the jack.
The 2 poles (104) are attached to the plate form and have a pivot at their end.
Bottom plate (2) pivots around pivot (13) to let the wheels go back when going forward with the car. Bracket (5) holds the two suspension arms (10) with the bolt (6). Suspension of the trailer is made of a coil spring (9) held by part (7) and plate (4) that fonction is to adjust the tensioon of the coil spring with the nut (14) and the rod (13).
Part (15) is the suspension cage. The wheel hub (17) is held by a wheel axle (16).
A shock absorber (20) is added in combination to the coil spring to give more stability to the trailer. Part (19) is the holding bracket for the shock absorber (20).
~ Figure 4 shows a bottom view of the trailer. Notice the position of the swivel wheels toward the rear end of the trailer in a way that when the wheels are in the front position, the center of gravity of the trailer is slightly forward of the center of the wheels; that gives good stability to the trailer when not coupled to a tow car and ease to lower the plate form when you want to load something.
The plate form is framed with tube beams (106) to give it some strenght. The 2 poles are inserted between tube beams and have a pivoting point, at bolt (12) and nut (113) the poles are secured to the plate form by bolt (108) when carrying a load.
Part (114) are two small bumper that protect the lights of the trailer and the frame when you are unloading something.
The swilvel system formed of parts 1 to 15 will be explained at the next figures.
P.3 ~ Figure 5, 6, 7, and 8 show the swilvel wheel and suspension system from 4 different view points.
Plate (1) is the superior plate welded to the plate form, the bottom plate (2) hold the wheel and suspension and pivots around bolt (11) and nut (12). A bearing (3) is placed between the plates (1 ) and (2) to facilitate the pivoting action.
The adjustement of the tension of the suspension is made by the plate (4), the rod (13) and the nut (14).
The suspension arms (10) are held in place by the bracket (5) that is solidified by plates (5A) and welded to plate (2).
The coil spring (9) is held in place on the sleeve (7) with a bolt (8), the sleeve (7) is welded on plate (2). The other end of the spring is fixed to the plate (15) and held by the backet (25A) and bolt (21 ) and nuts (25).
The wheel is held between two plates (10) by the axle (16) which holds the hub (17) The shock absorber (19) is held in place by bracket (19).
~ Figure 9, 10 and 11 show all seperate parts of the swivel wheel system and suspension.
Superior plate (1), inferior plate (2) bearing (3), cone (3A), tensionning plate (4), backet (5), bolt (6), sleeve (7), coil spring (9), suspension arm (10), bolt (11 ), nut (12), rod (13, nuts (14), carrier plate (15), forward plate of the carrier (15A), axle (16), hub (17), axle nut (18), backet (19), shock absorber (20), bolt (21), plate (22), strenghtening plate (23), nut (24, 25), bushing (26), seal (27), bearing (28), cone (29), bushing (30), braket (25A), strenghtening plate (31, 32).
The invention is not limited to the embodiments described and represented hevein before and various modifications can be made there to without passing bevouc~
tnA
scope of the invention.
P.y
This invention relates to an automotive type utility trailer which main features are. The ease of operation when backing off (reverse) with the car; and ease of dumping, when you want to load or unload a recreational vehicule or any other thing.
Everybody who used a trailer as had problems when backing off in an awkward place, and a lot of people do not use trailers because it is hard to manoeuvre.
With the trailer, backing off is not more difficult than when you back off with the car only, since there is no pivoting point between the car and the trailer, the trailer only moves up and down to absorb the bumps in the terrain.
With the increasing popularity of all kinds of recreational vehicule, there is a good market for small trailers made for that special application.
Brief summary of the invention The two main feature of the trailer are the double pole system and the 2 swivel wheels.
The double pole keeps the trailer in alignment with the car at every moment, while going forward or backward. The swivel wheel that are offset from there pivoting point take a rear position when going forward and pivot in the curves; and when you back off, the wheels automatically pivot and take a forward position (see figure 2) that will prepare the trailer for it's dumping position.
When the wheels are in the forward position, it take a lot of weight off the front of the trailer and helps the unloading of the vehicule on the trailer. It also reduces the angle of the plateform while unloading. In fact, the weels have to be in the forward position for the plateform to swivel and unload. To get the weels in that position you have to back off for a couple of feet starting with a little look to help the pivoting of the trailer wheels.
One more advantage of the trailer is it's reduced lenght, since there is no pivoting point between the car and the trailer like ordinary one pole trailers.
P.l Brief description of the drawings Figure 1 View from the top of the trailer, the two poles and the bumper of the towing car or truck.
Figure 2 Side view of the trailer with the two position of the pivoting wheels and the dumping position (shown in doted line) Figure 3 Side view in it's dumping position. And the forward position of the wheels.
Figure 4 View from the bottom of the trailer with the pivoting wheels position.
Figure 5 Side view of the wheel system Figure 6 Rear view of the wheel system Figure 7 Bottom view of the wheel system Figure 8 Front view of the wheel system Figure 9, 70 and 77 Exploded view of the wheel system.
Description of the preferved embodiments ~ Figure 1 Shows a top view of the trailer (96) and the bumper of the towing car or truck (95). The two attaching point on the car (97) are welded on the transverse bar (hitch) that is fixed under the car.
The extention tube beam (99) goes in the tube (97) and is fixed with a pin (98) and a counterpin. The part (100) is a standard trailer ball, part (101) is a standard trailer hand that goes in part (100).
A trailer jack (102) with a wheel at it's bottom end is fixed in the middle of the trailer.
Part (103) is a plate to hold the jack. The pole (104) of the trailer can be very short, since there is no pivot point. In the front area of the trailer, a frame (105) is installed to give streight to the plateform and give attaching point for the cargo.
~ Figure 2 Gives a side view of the trailer. An important point as to be explained here;
the attaching points on the car have to be positionned so the plate form of the trailer is horizontal or slightly going down toward the car (the front end of the trailer can be arround 5 cm lower than the rear end).
P.2 ~~'~; .
Part (101) is a standard trailer hand. Part (102) is a jack with wheel, plate (103) is welded to the trailer and holds the jack in position. The jack can be stored in an horizontal position when not needed. Part (104) are the 2 trailer poles. A
frame (105) is installed in the front of the plate form to give streight to the trailer. A plate (106) and a frame made of tube beam forms the plate form of the trailer. Part (1 ) is a steel plate welded to the frame wich fonction is to hold the wheel assembly.
Bottom plate (2) holds the bracket (5) and the anchoring point for the suspension (7). Bolt (6) holds the 2 suspension arms (10) to the backet, a wheel axle (16) holds the wheel between the two suspension arms(10). A floor bumper (114) is placed at the rear end of the trailer to protect when in dumping position.
Figure 3 show a side view of the trailer in it's dumping position. We can see here that when the wheels are in the forward position (after backing off) a lot of the cargo weight is transfered over the pivoting point; this results in a very easy unloading of the cargo.
Part (97) is a tube beam welded to the hitch of the car or truck, tube beam (99) goes into the fixed part (97). Part (102) is a lifting jack, part (103) is the plate that holds the jack.
The 2 poles (104) are attached to the plate form and have a pivot at their end.
Bottom plate (2) pivots around pivot (13) to let the wheels go back when going forward with the car. Bracket (5) holds the two suspension arms (10) with the bolt (6). Suspension of the trailer is made of a coil spring (9) held by part (7) and plate (4) that fonction is to adjust the tensioon of the coil spring with the nut (14) and the rod (13).
Part (15) is the suspension cage. The wheel hub (17) is held by a wheel axle (16).
A shock absorber (20) is added in combination to the coil spring to give more stability to the trailer. Part (19) is the holding bracket for the shock absorber (20).
~ Figure 4 shows a bottom view of the trailer. Notice the position of the swivel wheels toward the rear end of the trailer in a way that when the wheels are in the front position, the center of gravity of the trailer is slightly forward of the center of the wheels; that gives good stability to the trailer when not coupled to a tow car and ease to lower the plate form when you want to load something.
The plate form is framed with tube beams (106) to give it some strenght. The 2 poles are inserted between tube beams and have a pivoting point, at bolt (12) and nut (113) the poles are secured to the plate form by bolt (108) when carrying a load.
Part (114) are two small bumper that protect the lights of the trailer and the frame when you are unloading something.
The swilvel system formed of parts 1 to 15 will be explained at the next figures.
P.3 ~ Figure 5, 6, 7, and 8 show the swilvel wheel and suspension system from 4 different view points.
Plate (1) is the superior plate welded to the plate form, the bottom plate (2) hold the wheel and suspension and pivots around bolt (11) and nut (12). A bearing (3) is placed between the plates (1 ) and (2) to facilitate the pivoting action.
The adjustement of the tension of the suspension is made by the plate (4), the rod (13) and the nut (14).
The suspension arms (10) are held in place by the bracket (5) that is solidified by plates (5A) and welded to plate (2).
The coil spring (9) is held in place on the sleeve (7) with a bolt (8), the sleeve (7) is welded on plate (2). The other end of the spring is fixed to the plate (15) and held by the backet (25A) and bolt (21 ) and nuts (25).
The wheel is held between two plates (10) by the axle (16) which holds the hub (17) The shock absorber (19) is held in place by bracket (19).
~ Figure 9, 10 and 11 show all seperate parts of the swivel wheel system and suspension.
Superior plate (1), inferior plate (2) bearing (3), cone (3A), tensionning plate (4), backet (5), bolt (6), sleeve (7), coil spring (9), suspension arm (10), bolt (11 ), nut (12), rod (13, nuts (14), carrier plate (15), forward plate of the carrier (15A), axle (16), hub (17), axle nut (18), backet (19), shock absorber (20), bolt (21), plate (22), strenghtening plate (23), nut (24, 25), bushing (26), seal (27), bearing (28), cone (29), bushing (30), braket (25A), strenghtening plate (31, 32).
The invention is not limited to the embodiments described and represented hevein before and various modifications can be made there to without passing bevouc~
tnA
scope of the invention.
P.y
Claims (10)
1- This type of trailer adds something new to regular trailers with its double pole feature and swivel wheels.
2- This type of trailer, with its swivel wheels, give facility to manuver.
3- This types of trailer gives assurance to everybody using it, due to it's double pole feature that always keep it in alignement with the towing car.
4- This type of trailer gives ease of operation in a kward places since the trailer always stay in alignement with the car while backing off.
5- This type of trailer as a dumping plateform, since the swivel wheels take a forward position when backing off, this lowers the end of the platafonn and facilitate unloading
6- This type of trailer will be very usefull for carrying recreational vehicule like ATV, motorbike, marine bikes, snowmobile, etc.
7- This type of trailer is safer since there is two points of attach on the car.
8- This type of trailer permits backing off a smallplace for a very long distance since it always stays in alignement with car.
9- This type of trailer will be usefull for people having problems backing off with regular trailers.
10- This type of trailer, after a research with customers, as a very bright futur with trailer users.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2267140 CA2267140A1 (en) | 1999-03-15 | 1999-03-15 | Swivel wheel trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2267140 CA2267140A1 (en) | 1999-03-15 | 1999-03-15 | Swivel wheel trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2267140A1 true CA2267140A1 (en) | 2000-09-15 |
Family
ID=29588648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2267140 Abandoned CA2267140A1 (en) | 1999-03-15 | 1999-03-15 | Swivel wheel trailer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2267140A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1502776A3 (en) * | 2003-07-30 | 2007-04-11 | Christian Dipl.-Ing. Stursberg | Vehicle combination |
| EP2228240A3 (en) * | 2009-03-09 | 2011-04-27 | Nissan Motor Manufacturing (UK) Ltd. | Vehicle suspension |
| ES2404908A1 (en) * | 2011-11-17 | 2013-05-29 | Indalecio DE LA TORRE HERRERA | Self-orientable towing of blocked coupling. (Machine-translation by Google Translate, not legally binding) |
| EP2845752A3 (en) * | 2013-08-29 | 2015-07-01 | Wilfried Laumann | Single-axle trailer for a passenger vehicle |
-
1999
- 1999-03-15 CA CA 2267140 patent/CA2267140A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1502776A3 (en) * | 2003-07-30 | 2007-04-11 | Christian Dipl.-Ing. Stursberg | Vehicle combination |
| EP2228240A3 (en) * | 2009-03-09 | 2011-04-27 | Nissan Motor Manufacturing (UK) Ltd. | Vehicle suspension |
| GB2468487B (en) * | 2009-03-09 | 2013-05-01 | Nissan Motor Mfg Uk Ltd | Vehicle suspension |
| ES2404908A1 (en) * | 2011-11-17 | 2013-05-29 | Indalecio DE LA TORRE HERRERA | Self-orientable towing of blocked coupling. (Machine-translation by Google Translate, not legally binding) |
| EP2845752A3 (en) * | 2013-08-29 | 2015-07-01 | Wilfried Laumann | Single-axle trailer for a passenger vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |