Multipurpose Compactor and Method for Operating the Multipurpose Compactor

• US 20100272512A1
• Filed: 04/23/2010
• Published: 10/28/2010
• Est. Priority Date: 04/23/2009
• Status: Active Grant

• Current Assignee: Bomag GmbH (FAYAT SAS)
• Original Assignee: Bomag GmbH (FAYAT SAS)
• Inventors: Hehner, Alexander, Loew, Timo
• Granted Patent: US 8,672,582 B2
• Time in Patent Office: Days
• US Class Current: 404/75
• CPC Class Codes: E01C 19/262 pedestrian-controlled, e.g. with safety arrangements for operator
• CPC Class Codes: E02D 3/046 by tamping or vibrating, e.g. with auxiliary watering of the soil E02D3/026, E02D3/08 take precedence; generating or transmitting mechanical vibrations for performing mechanical work in general B06B; tamping or vibrating apparatus for working ballast or railways E01B27/00, for consolidating paving materials E01C19/30, for consolidating concrete in general E04G21/06

Abstract

A multipurpose compactor with an automatic safety system is provided. The automatic safety system comprises at least one transmitter and one receiver. The transmitter is coupled mechanically fixed to the multipurpose compactor and/or to a unit movable relative to the multipurpose compactor. The receiver is coupled fixedly to the movable unit and/or the multipurpose compactor

Claims

1. A multipurpose compactor, comprising:

an automatic safety system including at least one transmitter, fixedly coupled to the multipurpose compactor and/or a unit movable relative to the multipurpose compactor, and one receiver, fixedly coupled to the movable unit and/or the multipurpose compactor,

wherein the automatic safety system is based on radio-frequency identification (RFID) technology.

2. The multipurpose compactor according to claim 1, wherein the unit movable relative to the multipurpose compactor comprises a remote control of the multipurpose compactor.

3. The multipurpose compactor according to claim 1, wherein the transmitter is coupled to at least one transmitting antenna, and the transmitter and the transmitting antenna emit a protective field that has a predefined radius.

4. The multipurpose compactor according to claim 3, wherein the transmitter is coupled to two transmitting antennas, which are situated in a front or rear area, respectively, of the multipurpose compactor in the main travel direction of the multipurpose compactor.

5. The multipurpose compactor according to claim 4, wherein one transmitter is provided for each transmitting antenna.

6. The multipurpose compactor according to claim 3, wherein the receiver is coupled to a receiving antenna, which receives the protective field independently of location and/or orientation.

7. The multipurpose compactor according to claim 1, wherein the safety system is electronically coupled to a control unit of the multipurpose compactor so that a drive of the multipurpose compactor can be shut down as a function of a safety signal of the safety system, or the safety system is directly coupled to the drive of the multipurpose compactor so that the drive of the multipurpose compactor can be shut down directly as a function of the safety signal independently of the control unit.

8. A method for operating the multipurpose compactor according to claim 1, wherein the protective field is emitted by the transmitter, and the safety signal is generated by the receiver if the receiver is located inside the protective field.

9. The method according to claim 8, wherein the safety signal is transmitted to the multipurpose compactor by the unit movable relative to the multipurpose compactor if the receiver is comprised by the unit movable relative to the multipurpose compactor.

10. The method according to claim 9, wherein the drive of the multipurpose compactor is stopped by the control unit if the control unit receives the safety signal, or the drive is stopped directly as a function of the generated safety signal, independently of the control unit.

11. The method according to claim 8, wherein the safety signal is only generated and/or the drive of the multipurpose compactor is only stopped if the unit movable relative to the multipurpose compactor is located in front of the multipurpose compactor in the travel direction.

12. The method according to claim 8, wherein, after the automatic stop of the drive, the drive is only released in the direction opposite to the original travel direction and/or the drive is only released when the movable unit is no longer located inside the protective field.

13. The method according to claim 8, wherein a self-test of the safety system is performed automatically, and the drive of the multipurpose compactor is blocked if the self-test has a negative result.