Omnidirectional vehicle, driving module, and mobile industrial robot

Patent metadata

Field	Value
Publication number	US-9248876-B2
Application number	US-59462308-A
Country	US
Kind code	B2
Filing date	Mar 31, 2008
Priority date	Apr 4, 2007
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

An omnidirectional vehicle has a driving module and a mobile industrial robot. The omnidirectional vehicle has omnidirectional wheels and a vehicle body, on which at least one of the omnidirectional wheels is mounted by means of an individual suspension.

First claim

We claim as our invention:

1. An omnidirectional vehicle, comprising:
a vehicle body;
at least four Mecanum wheels;
at least four single wheel suspensions to which said at least four Mecanum wheels are respectively, individually mounted, each of said at least four single wheel suspensions being connected to said vehicle body, each single wheel suspension being configured to allow the respective Mecanum wheel mounted thereto to be retracted into the vehicle body or to extend at least partially out from the vehicle body; and
a height actuator in each of said single wheel suspensions that individually, selectively sets and maintains a height of the respective Mecanum wheel mounted thereto relative to said vehicle body, causing said vehicle body to traverse an uneven terrain with substantially no tilting of said vehicle body.

2. Vehicle according to claim 1 wherein each of said single wheel suspension comprises a damping that at least partially cushions the respective Mecanum wheel mounted thereto during operation of the vehicle.

3. Vehicle according to claim 1 comprising a lifting device and at least one clearance sensor configured for level regulation by adjusting said height of the Mecanum wheel relative to said vehicle body.

4. Vehicle according to claim 1 wherein each of said single wheel suspension comprises a vibration damper.

5. Vehicle according to claim 1 wherein at least some of the individual Mecanum wheels comprise at least one of a drive actuator.

6. Vehicle according to claim 1 comprising at least one standard wheel arranged to rotate by a further single wheel suspension connected to the vehicle body.

7. Vehicle according to claim 6 , wherein the further single wheel suspension of the standard wheel has a structure essentially the same as the respective single wheel suspensions of the omnidirectional wheels.

8. Vehicle according to claim 1 comprising multiple standard wheels each with a further single wheel suspension.

9. Vehicle according to claim 1 wherein the vehicle body comprises multiple driving modules, each driving module comprising:
a module body,
one of said omnidirectional wheels, and
one of said single wheel suspensions attached to the module body.

10. Vehicle according to claim 9 , wherein at least one of the first module bodies comprises at least one of a drive actuator for driving of, or a brake for braking of, the respective omnidirectional wheel thereof.

11. Vehicle according to claim 9 wherein the driving modules can be assembled so as to be separable or inseparable.

12. Vehicle according to claim 1 wherein said at least one of said Mecanum wheels connected to the vehicle body by one of said single wheel suspensions comprises a drive actuator that drives said at least one of the Mecanum wheels.

13. Vehicle as claimed in claim 12 comprising:
an industrial robot mounted on said vehicle body, said industrial robot comprising multiple robotic axles and a control computer configured to provide control signals that manipulate said industrial robot by moving said robotic axles, and said control computer being configured to also operate said drive actuator to control movement of said at least one of the Mecanum wheels.

14. An omnidirectional vehicle comprising:
a plurality of first driving modules and at least one second module, interconnected together to form a vehicle body;
each of said plurality of driving modules comprising one Mecanum wheel mounted in said driving module by a single wheel suspension, each of said single wheel suspension being configured to allow the respective Mecanum wheel mounted thereto to be retracted into the vehicle body or to extend at least partially out from the vehicle body, and each of said single wheel suspension comprising a single wheel suspension height actuator that selectively, individually sets and maintains a height of the Mecanum wheel mounted thereto relative to said vehicle body;
said at least one second module comprising a standard, non-omnidirectional wheel and a further single wheel suspension to which said standard wheel is mounted, said further single wheel suspension attaching said single wheel to said at least one second module body, said further single wheel suspension being substantially the same as said plurality of single wheel suspensions to which the omnidirectional wheels are respectively mounted, and said standard wheel thereby also being individually and selectively height adjustable relative to said vehicle body to selectively set said vehicle body for operation on a terrain in a first mode with only said Mecanum wheels in contact with said terrain or in a second mode with only said standard wheel in contact with, said terrain; and
said at least one second module comprising at least one module actuator selected from the group consisting of a module drive that drives said standard wheel and a module brake that brakes said standard wheel.

Assignees

• Nüchter Elmar
• Bahr Edmund
• Lohmüller Heinrich
• Kuka Roboter Gmbh

Inventors

• Nüchter Elmar
• Bahr Edmund
• Lohmüller Heinrich

Classifications

• B25J5/007

  mounted on wheels · CPC title

• B60G3/01

  the wheel being mounted for sliding movement, e.g. in or on a vertical guide (camber maintaining means B60G3/26) · CPC title

• B62D61/10 Primary

  with more than four wheels {(tractors of the low ground pressure type B62D49/002)} · CPC title

• B62D57/024

  specially adapted for moving on inclined or vertical surfaces (endless-track vehicles for ascending or descending stairs B62D55/075; hand-carts with provision for travelling up or down stairs B62B5/02) · CPC title

• B60B2900/131

  Vibrations · CPC title