GB2410014A - Truck with resiliently mounted steered wheels - Google Patents

Truck with resiliently mounted steered wheels Download PDF

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Publication number
GB2410014A
GB2410014A GB0500876A GB0500876A GB2410014A GB 2410014 A GB2410014 A GB 2410014A GB 0500876 A GB0500876 A GB 0500876A GB 0500876 A GB0500876 A GB 0500876A GB 2410014 A GB2410014 A GB 2410014A
Authority
GB
United Kingdom
Prior art keywords
working machine
machine according
steering
pivot plates
cylinder
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
GB0500876A
Other versions
GB2410014B (en
GB0500876D0 (en
Inventor
Bernhard Goetz
Constantin Robkopf
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.)
Linde GmbH
Original Assignee
Linde GmbH
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
Priority claimed from DE102004038409A external-priority patent/DE102004038409A1/en
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of GB0500876D0 publication Critical patent/GB0500876D0/en
Publication of GB2410014A publication Critical patent/GB2410014A/en
Application granted granted Critical
Publication of GB2410014B publication Critical patent/GB2410014B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/10—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces not permanently interconnected, e.g. operative only on acceleration, only on deceleration or only at off-straight position of steering
    • B60G21/106—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces not permanently interconnected, e.g. operative only on acceleration, only on deceleration or only at off-straight position of steering transversally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/265—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs hydraulic springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/01—Resilient suspensions for a single wheel the wheel being mounted for sliding movement, e.g. in or on a vertical guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/08—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle
    • B62D7/09—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle characterised by means varying the ratio between the steering angles of the steered wheels
    • 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
    • B66F9/075—Constructional features or details
    • 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
    • B66F9/075—Constructional features or details
    • B66F9/07568—Steering arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
    • 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
    • B60G2204/128—Damper mount on 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
    • B60G2300/02—Trucks; Load vehicles
    • B60G2300/022—Fork lift trucks, Clark
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/37—Vehicles having steerable wheels mounted on a vertically moving column

Abstract

An industrial vehicle such as a fork lift truck comprises two laterally spaced pivot plates DS1, DS2, each providing mounting for at least one wheel R1, R2. Each pivot plate DS1, DS2 is connected at the lower end of a piston K1, K2 which moves within a hydraulic cylinder Z1, Z2. The pistons K1, K2 are rotatable to provide steering of respective wheels R1, R2. An endless loop such as a belt Z transmits a force from a steering actuator Ak to each piston K1, K2 via a cam plate (Ro1, Ro2 fig 2) connected to an upper end of a rod RS1, RS2. The lower end of each rod RS1, RS2 is located in a recess A1, A2 in each piston K1, K2 for steering torque transmission.

Description

Working machine comprising a steering axle with two pivot plates on
extendable pistons The invention relates to a working machine, in particular an industrial truck, comprising a steering axle which has two pivot plates laterally spaced apart from one another, on each of which at least one wheel is mounted, the pivot plates being arranged, in each case, at the lower end of a hydraulic cylinder having a rotatable piston which can be downwardly extended, on which the pivot plate is fastened.
A generic working machine is disclosed in the patent document DE 1 328. In order to produce a rotary movement of the pivot plates, the piston which can be extended downward and is configured in principle as a hollow cylinder closed on the base side, is provided on the outer periphery with teeth onto which a sleeve with inner teeth is pushed. The sleeve, which is rotatably mounted on a non-rotatable outer cylindrical tube is coupled to a steering lever of a steering drive.
The present invention is based on the object of providing a working machine of the type mentioned at the outset with simplified construction of the steering axle.
This object is achieved according to the invention in that an axially stationary rotor rod is arranged in the cylinder and a lower end of which dips from above into a central recess of the piston so as to transmit torque and rotary movement, and an upper end of which is guided out of the cylinder and coupled to a steering drive.
The idea essential to the invention accordingly consists in introducing a rotary movement produced by the steering drive from above into the cylinder and transmitting it to the piston and therefore to the pivot plate.
In this simplified and compactly constructed design, it is also ensured that the steering drive remains unimpaired by the vertical movements of the pivot plates. The overall height of the steering axle does not change when there is vertical movement of the pivot plates.
According to an advantageous development of the invention, it is provided that an annular chamber is arranged radially between the rotor rod and the cylindrical tube and the annular chamber is provided together with the recess as a pressure chamber which can be loaded with hydraulic fluid.
If the two hydraulic cylinders have pressure chambers which can be connected with one another in the context of a wheel load-compensating movement coupling, the effect of a full floating axle can be achieved.
In an expedient configuration of the invention, a steering drive, which is common to the two pivot plates and configured as a linear drive, is provided.
At the same time, the pivot plates may be in operative connection by means of a traction mechanism with a linearly movable actuator of the steering drive.
In a configuration of the invention which is particularly advantageous, the traction mechanism is designed as an endless traction mechanism of an outer gearing and engages with two rotors which are each coupled by a torsionally stiff connection with the rotor rod to one of the pivot plates. The traction mechanism is therefore constantly active for the two pivot plates regardless of the direction of movement.
In one embodiment of the invention, it is advantageous if the rotors engaging with the traction mechanism are each configured as a cam plate, by means of which steering angles of the pivot plates which differ from one another can be achieved when the pivot plates are pivoted out of the straight ahead driving position. On pivoting the pivot plates in this manner, a steering angle difference of the steered wheels is achieved and a correct steering geometry can thereby be achieved during cornering, wherein the two wheels have the same steering centre.
The steering drive may be configured as a hydraulic steering cylinder.
This type of drive unit only requires little overall space but has a high force density.
In a favourable configuration the hydraulic steering cylinder is configured as a cylinder which has a piston rod acting as a stator and guided through a cylindrical tube and a cylindrical tube acting as a linearly movable actuator and connected to the traction mechanism and the centre line thereof is arranged in a plane defined by the two axes of rotation of the pivot plates. The hydraulic cylinder is therefore spatially located inside the outer gearing and is thus accommodated in a space-saving manner.
If the piston rod is fastened at the ends to carrying parts of the pivot plates, there is no need for a separate fastening of the steering drive to the vehicle frame. Instead, the steering drive together with the two pivot plates to a certain extent forms an independent constructional unit (steering axle) which can optionally be connected as a pre-assembled whole to the vehicle.
In a preferred embodiment of the invention, the traction mechanism is configured as a flat belt, in particular as a flat belt in operative connection moving in conforming with the rotors and the linearly movable actuator. In order to prevent slippage, the flat belt may be configured as a toothed belt or be secured in another suitable manner against slipping.
With respect to the above-mentioned fastening of the piston rod of the steering cylinder on carrying parts of the pivot plates, it is favourable with respect to a simple construction if the ends of the piston rod of the steering cylinder are each provided with a bearing hole, in which the upper end of rotor rod of the hydraulic cylinder can be rotated. The attachment of the piston rod of the steering cylinder to the pivot plate therefore takes place with the aid of the rotor rods of the hydraulic cylinders.
The hydraulic cylinders may be integrated in a space-saving manner into a counterweight of the working machine configured as a fork lift truck.
Further advantages and details will be described in more detail with the aid of the embodiment shown in the schematic figures, in which: Figure 1 shows a section through a steering axle of a working machine according to the invention; and Figure 2 shows a plan view of the steering axle according to Figure 1.
The steering axle of the working machine according to the invention has two pivot plates DS1 and DS2 which are spaced apart from one another and are each rotatable about a vertical axis VA1 or VA2 and, in the present example, are fastened at the lower end of a piston K1 or K2 of a hydraulic cylinder Z 1 or Z2.
A wheel R1 or R2 is rotatably mounted on each pivot plate DS1, DS2. It is also conceivable for two respective wheels (tandem wheels) to be provided on each pivot plate DS1, DS2.
A central recess A 1 or A2, into which the lower end of a rotor rod RS 1 or RS2 dips from above so as to transmit torque and rotary movement is incorporated, in each case, into the pistons K1 and K2 which can be rotated together with the pivot plates DS 1, DS2 about the vertical axes VAT, VA2. The upper end of the rotor rod RS1 or RS2 is guided out of the cylindrical tubes ZR1 or ZR2 of the hydraulic cylinders Z1 or Z2 and is in operative connection, in a manner still to be described, with a steering drive.
The rotor rod RS 1 or RS2 is non-rotatably coupled to the piston K 1 or K2 to transmit a torque and therefore to transmit a rotary movement, but the piston K1 or K2 is axially movable relative to the axially stationary rotor rod RS1 or RS2. This can be achieved, for example, by wedge teeth in the recess A1 or A2 and on the rotor rod RS1 or RS2. Rotating the rotor rod RS1 or RS2 therefore brings about a rotation of the piston K1 or K2 and therefore also a rotation of the pivot plate DS1 or DS2 fastened to the piston K1 or K2.
In the axial region of the rotor rod RS 1 or RS2 which is located outside the piston K1 or K2, an annular chamber D1 or D2 is formed, which is filled with hydraulic fluid and, together with the recess A 1 or A2, also filled with hydraulic fluid, serves as a pressure chamber. For this purpose, the annular chamber D1 or D2 and the recess A1 or A2 are in fluid communication with one another and this can be achieved, for example, by a gap in said wedge teeth. By increasing the quantity of fluid in the pressure chamber (divided into two), which can be connected to a source of pressure means, not shown in the figures, it is possible to extend the piston K1 or K2 out of the cylinder Z1 or Z2.
The pressure chamber may also be connected to a hydropneumatic store, so a resilience can be achieved.
In the present embodiment, the two pressure chambers are connected to one another by a hydraulic line L, in which a valve V, which can be controlled with respect to the flow cross-section, is arranged. With an unimpeded connection of the two pressure chambers, a wheel load compensation is brought about, so, to a certain extent, a "hydraulic full floating axle" is produced. In certain operating states, it is possible to damp or completely stop the compensation movement with the aid of the valve V. As can be seen from viewing together figures 1 and 2, a rotor Rol or Ro2 is torsionally stiffly fastened (for example press fit) to the end of each rotor rod RS1 or RS2 guided out of the hydraulic cylinder Z1 or Z2, the rotor being configured as a cam plate. A traction mechanism Z. which is designed as an endless traction mechanism, and is configured preferably as a flat belt, engages with the two rotors Rol and Ro2.
The traction means Z and the two rotors Rol and Ro2 are components of an outer gearing which is in operative connection on the input side with a hydraulic steering cylinder LZ, the centre line M of which is arranged in a common plane defined by the two axes VA1 and VA2 of rotation of the pivot plates DS1 and DS2.
The steering cylinder L has a cylindrical tube which acts as a linearly movable actuator Ak connected to the traction mechanism Z. A piston rod KS guided through the cylindrical tube A acts as a stator and is fastened at the ends to carrying parts of the pivot plate DS 1 or DS2. The rotor rods RS 1 and RS2 serve here as carrying parts which are slightly lengthened axially beyond the rotors Rol and Ro2 and can be rotated in bearing holes LB1 or LB2 of the piston rod KS.
As the piston rod KS of the steering cylinder LZ is stationary, when the steering cylinder LZ is pressurised, its cylindrical tube (actuator Ak) moves on the piston rod KS along the centre line M and thus entrains the traction mechanism Z. As a result, the rotors Rol and Ro2 and therefore the rotor rods RS1 and RS2 as well as the pistons K1 and K2 and also the two pivot plates DS1 and DS2 are rotated about the vertical axis VA1 or VA2.
Because of the configuration of the rotors Rol and Ro2 as cam plates, a steering angle difference can thus be achieved. In order to prevent the traction mechanism Z from slipping, it can be configured as a toothed belt or be coupled in a different suitable manner so as to move in conformity with the rotors Rol, Ro2.
The steering axle, shown in the figures, of the working machine according to the invention can be integrated into its counterweight if the working machine is configured as a fork lift truck.

Claims (13)

  1. Claims 1. A working machine, in particular an industrial truck, comprising
    a steering axle which has two pivot plates laterally spaced apart from one another, on each of which at least one wheel is mounted, the pivot plates being arranged, in each case, at the lower end of a hydraulic cylinder having a rotatable piston which can be downwardly extended, on which the pivot plate is fastened, characterised in that an axially stationary rotor rod (RS1 or RS2) is arranged in the cylinder (Z1 or Z2) and a lower end of which dips from above into a central recess of the piston (K1 or K2) so as to transmit torque and rotary movement, and an upper end of which is guided out of the cylinder (Z 1 or Z2) and coupled to a steering drive.
  2. 2. A working machine according to claim 1, characterised in that an annular chamber (D 1 or D2) is arranged radially between the rotor rod (RS 1 or RS2) and the cylindrical tube (ZR 1 or ZR2) and is provided together with the recess (A 1 or A2) as a pressure chamber which can be loaded with hydraulic fluid.
  3. 3. A working machine according to claim 1 or 2, characterised in that the two hydraulic cylinders (Z1, Z2) have pressure chambers which can be connected to one another in the context of wheel load-compensating movement coupling.
  4. 4. A working machine according to any one of claims 1 to 3, characterised in that a steering drive, which is common to the two pivot plates (DS1, DS2) and configured as a linear drive, is provided.
  5. 5. A working machine according to claim 4, characterized in that the pivot plates (DS1, DS2) are in operative connection by means of a traction mechanism (Z) with a linearly movable actuator (Ak) of the steering drive (steering cylinder LZ).
  6. 6. A working machine according to claim 5, characterised in that the traction mechanism (Z) is configured as an endless traction mechanism of an outer gearing which comprises two rotors (Rot, Ro2) engaging with the traction mechanism (Z), which are respectively coupled to one of the pivot plates (DS 1 or DS2) by a torsionally stiff connection with the rotor rod (RS 1 or RS2).
  7. 7. A working machine according to claim 6, characterised in that the rotors (Rol, Ro2) engaging with the traction mechanism (Z) are each configured as a cam plate, by means of which steering angles of the pivot plates (DS1, DS2) which differ from one another can be achieved when the pivot plates (DS1, DS2) are pivoted out of the straight ahead driving position.
  8. 8. A working machine according to any one of claims 4 to 7, characterised in that the steering drive is configured as a hydraulic steering cylinder (LZ).
  9. 9. A working machine according to claim 8, characterized in that the hydraulic steering cylinder (LZ) is configured as a cylinder which has a piston rod (KS) acting as a stator and guided through a cylindrical tube and a cylindrical tube acting as a linearly movable actuator (Ak) and connected to the traction mechanism (Z) and the centre line (M) thereof is arranged in a plane defined by the two axes (VAT, VA2) of rotation of the pivot plates (DS1, DS2).
  10. 10. A working machine according to claim 9, characterised in that the piston rod (KS) is fastened at the ends to carrying parts of the pivot plates (DS1, DS2).
  11. 1 1. A working machine according to any one of claims 5 to 10, characterised in that the traction means (Z) is configured as a flat belt, in particular as a flat belt in operative connection moving in conformity with the rotors (Rot, Ro2) and the linearly movable actuator (Ak).
  12. 12. A working machine according to claim 10 or 1 1, characterised in that the ends of the piston rod (KS) of the steering cylinder (LZ) are each provided with a bearing hole (LB 1 or LB2) in which the upper end of the rotor rod (RS 1 or RS2) of the hydraulic cylinder (Z 1 or Z2) can be rotated.
  13. 13. A working machine according to any one of claims 1 to 12, characterized in that the hydraulic cylinders (Z1, Z2) are integrated in a counterweight of the working machine configured as a fork lift truck.
GB0500876A 2004-01-15 2005-01-17 Working machine comprising a steering mechanism with two piston mounted pivot plates Expired - Fee Related GB2410014B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002065 2004-01-15
DE102004038409A DE102004038409A1 (en) 2004-01-15 2004-08-07 Work machine with a steering axle with two turntables on extendable pistons

Publications (3)

Publication Number Publication Date
GB0500876D0 GB0500876D0 (en) 2005-02-23
GB2410014A true GB2410014A (en) 2005-07-20
GB2410014B GB2410014B (en) 2007-04-11

Family

ID=34227630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0500876A Expired - Fee Related GB2410014B (en) 2004-01-15 2005-01-17 Working machine comprising a steering mechanism with two piston mounted pivot plates

Country Status (2)

Country Link
FR (1) FR2865179B1 (en)
GB (1) GB2410014B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20110103A1 (en) * 2011-05-16 2012-11-17 Giorgio Anselmi SUSPENSION DEVICE FOR VEHICLES
WO2018041484A1 (en) * 2016-09-02 2018-03-08 Hubtex Maschinenbau Gmbh & Co. Kg Industrial truck and drive wheel bearing device for industrial trucks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107776349B (en) * 2017-10-11 2019-10-11 叶建新 A kind of automotive suspension and the automobile with the suspension

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065328B (en) * 1957-02-02 1959-09-10 Ver Westdeutsche Waggonfab Forklift
GB870450A (en) * 1957-03-05 1961-06-14 British Straddle Carrier Compa Spring suspension
GB1450326A (en) * 1972-12-20 1976-09-22 Nicolas Fils Jean Heavy-duty motor vehicles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551014B1 (en) * 1983-08-29 1989-06-30 Braud Sa LIFTING AND STEERING DEVICE FOR A STEERING WHEEL OF A VEHICLE
DE19617442C1 (en) * 1996-05-02 1998-01-29 Wirtgen Gmbh Running gear for a machine for milling off road surfaces
DE19748474C1 (en) * 1997-11-03 1999-08-12 Horst Staiger & Soehne Gmbh Rear axle steering device
DE19905325A1 (en) * 1999-02-09 2000-08-10 Still & Saxby Sarl Industrial truck with two steerable drive wheels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065328B (en) * 1957-02-02 1959-09-10 Ver Westdeutsche Waggonfab Forklift
GB870450A (en) * 1957-03-05 1961-06-14 British Straddle Carrier Compa Spring suspension
GB1450326A (en) * 1972-12-20 1976-09-22 Nicolas Fils Jean Heavy-duty motor vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20110103A1 (en) * 2011-05-16 2012-11-17 Giorgio Anselmi SUSPENSION DEVICE FOR VEHICLES
EP2524823A1 (en) * 2011-05-16 2012-11-21 Giorgio Anselmi Suspension device for vehicles
WO2018041484A1 (en) * 2016-09-02 2018-03-08 Hubtex Maschinenbau Gmbh & Co. Kg Industrial truck and drive wheel bearing device for industrial trucks
AU2017318205B2 (en) * 2016-09-02 2020-02-20 Hubtex Maschinenbau Gmbh & Co. Kg Industrial truck and drive wheel bearing device for industrial trucks

Also Published As

Publication number Publication date
GB2410014B (en) 2007-04-11
FR2865179B1 (en) 2007-06-29
GB0500876D0 (en) 2005-02-23
FR2865179A1 (en) 2005-07-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120117