Transport device

Patent metadata

Field	Value
Publication number	US-9701488-B2
Application number	US-201615162856-A
Country	US
Kind code	B2
Filing date	May 24, 2016
Priority date	May 26, 2015
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A transport device includes at least one mover that includes at least one base body, multiple permanent magnets, and at least one movable part. The multiple permanent magnets are connected to the at least one base body and cooperate with at least one coil plane of a drive surface so as to drive the at least one mover. The at least one movable part is connected to the at least one base body, and, in a lowered state, the at least one movable part brings the at least one mover into mechanical contact with the drive surface.

First claim

What is claimed is:

1. A transport device, comprising:
at least one mover, including:
at least one base body;
multiple permanent magnets connected to the at least one base body, the permanent magnets configured to cooperate with at least one coil plane of a drive surface to drive the at least one mover in a contactless manner; and
at least one movable part connected to the at least one base body and configured to move relative to the at least one base body,

wherein the at least one movable part is configured to bring the at least one mover into mechanical contact with the drive surface when the at least one movable part is in a lowered state.

2. The device according to claim 1 , wherein at least one movement of the at least one movable part relative to the at least one base body is performed in dependence upon at least one of a magnetic field that is generated by the at least one coil plane and a change in the magnetic field that is generated by the at least one coil plane.

3. The device according to claim 2 , wherein the at least one movable part is configured to move back into a starting position when a further change of the magnetic field occurs.

4. The device according to claim 1 , wherein the at least one movable part comprises at least one ferromagnetic part.

5. The device according to claim 1 , wherein the at least one movable part comprises at least one bearing mechanism.

6. The device according to claim 5 , wherein the at least one bearing mechanism is one of a roller, a ball, and a suction element.

7. The device according to claim 1 , wherein the at least one movable part is connected to the at least one base body by at least one movement mechanism.

8. The device according to claim 7 , wherein the at least one movement mechanism is a spring.

9. The device according to claim 1 , further comprising:
at least one guiding element arranged between the at least one base body and the at least one movable part.

10. The device according to claim 9 , wherein the at least one guiding element is configured to cooperate with a helical groove that is formed between the at least one base body and the at least one movable part.

11. The device according to claim 1 , wherein a ferromagnetic grid is used as a ferromagnetic part and/or is embodied from magnetic anisotropic material.

12. The device according to claim 11 , wherein the ferromagnetic grid comprises an identical spacing to that of the at least one coil plane.

13. The device according to claim 1 , wherein the at least one movable part includes at least one further frame part connected by a lever mechanism to the at least one movable part.

14. The device according to claim 1 , wherein the at least one movable part has a lower mass inertia than the at least one base body.

15. The device according to claim 1 , wherein the at least one movable part is arranged in a middle region of the at least one mover and/or is surrounded by at least one magnet array.

Assignees

• Bosch Gmbh Robert

Inventors

• Paweletz Anton

Classifications

• B65G54/02 Primary

  electrostatic, electric, or magnetic · CPC title

• H02K41/031

  of the permanent magnet type · CPC title

• H02K2201/18

  Machines moving with multiple degrees of freedom · CPC title