MANUAL CONTROL DEVICE, CONTROL AND OPERATING UNIT INCLUDING A MANUAL CONTROL DEVICE, AND WORK MACHINE OR CONSTRUCTION MACHINE

• US 20160306379A1
• Filed: 04/11/2016
• Published: 10/20/2016
• Est. Priority Date: 04/20/2015
• Status: Active Application

• Current Assignee: Moba Mobile Automation Ag
• Original Assignee: Moba Mobile Automation Ag
• Inventors: KUEHR, Thomas, TROST, Karl-Freidrich, ZILS, Boris
• Granted Patent: US 10,289,147 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01D 2205/95 Three-dimensional encoders, i.e. having codes extending in three directions
• CPC Class Codes: G01D 5/145 influenced by the relative movement between the Hall device and magnetic fields see G01R33/06
• CPC Class Codes: G05G 1/04 Controlling members for hand actuation by pivoting movement, e.g. levers
• CPC Class Codes: G05G 1/06 Details of their grip parts G05G1/10 takes precedence
• CPC Class Codes: G05G 2009/04711 with substantially hemispherical bearing part forced into engagement, e.g. by a spring
• CPC Class Codes: G05G 2009/04755 Magnetic sensor, e.g. hall generator, pick-up coil
• CPC Class Codes: G05G 2009/04777 with additional push or pull action on the handle
• CPC Class Codes: G05G 5/02 Means preventing undesired movements of a controlling member which can be moved in two or more separate steps or ways, e.g. restricting to a stepwise movement or to a particular sequence of movements G05G5/28 takes precedence
• CPC Class Codes: G05G 5/04 Stops for limiting movement of members, e.g. adjustable stop G05G5/03, G05G5/05, G05G5/28 take precedence
• CPC Class Codes: G05G 5/08 Interlocking of members, e.g. locking member in a particular position before or during the movement of another member
• CPC Class Codes: G05G 9/047 the controlling member being movable by hand about orthogonal axes, e.g. joysticks for switches H01H25/04

Abstract

A manual control device for a control and operating unit of a lifting work platform, work machine or construction machine has at least one actuating unit which has an actuation element having at least one magnetic position element, and an evaluating unit having at least one magnetic field sensor unit. The evaluating unit is configured to detect a position and/or movement of the actuation element in a plane of movement based on a sensor signal from the magnetic field sensor unit. The actuation element is movable relative to the sensor unit along a further direction of movement perpendicularly to the plane of movement, wherein the evaluating unit is configured to detect a movement of the actuation element along the further direction of movement based on a sensor signal from the magnetic field sensor unit.

Claims

1. A manual control device for a control and operating unit of a lifting work platform, work machine or construction machine, comprising:

at least one actuating unit which comprises an actuation element comprising at least one magnetic position element; and

an evaluating unit which comprises at least one magnetic field sensor unit,

wherein the evaluating unit is configured to detect a position and/or movement of the actuation element in a plane of movement based on a sensor signal from the magnetic field sensor unit, and

wherein the actuation element is movable relative to the sensor unit along a further direction of movement perpendicularly to the plane of movement,

wherein the evaluating unit is configured to detect a movement of the actuation element along the further direction of movement based on a sensor signal from the magnetic field sensor unit.

2. The manual control device in accordance with claim 1, wherein:

the actuation element is switchable between a first position in which movement along the further direction of movement is allowed, and a second position in which movement along the further direction of movement is not possible, and

the evaluating unit is configured to detect the first position or the second position of the actuation element based on a sensor signal from the magnetic field sensor unit.

3. The manual control device in accordance with claim 2, wherein the distances between the non-deflected magnetic position element of the actuation element and the magnetic field sensor unit are different in the first position of the actuation element and in the second position of the actuation element.

4. The manual control device in accordance with claim 2, comprising an adapter plate and a hold-up plate of which one is mounted in the manual control device, depending on whether the actuation element is in the first position or in the second position,

wherein, in the second position of the actuation element, the hold-up plate is mounted in the manual control device to prevent movement of the actuation element from the second position, and

wherein, in the first position of the actuation element, the adapter plate is mounted in the manual control device such that the distance between the non-deflected magnetic position element of the actuation element and the magnetic field sensor unit is greater than the distance when the hold-up plate is mounted.

5. The manual control device in accordance with claim 2, comprising a first mechanical lock integrated in the actuation element configured to lock the actuation element in the second position and release the actuation element in the first position such that the distances between the non-deflected magnetic position element of the actuation element and the magnetic field sensor unit are different in the first position of the actuation element and in the second position of the actuation element.

6. The manual control device in accordance with claim 1, wherein the evaluating unit is configured to cause calibration of the manual control device,

wherein the evaluating unit is configured to only perform calibration when the actuation element is within a predetermined region around the zero point.

7. The manual control device in accordance with claim 1, wherein the evaluating unit is configured to indicate, after mounting the actuating unit, a maximum deflection of the actuation element when the actuation element reaches a deflection which is below a maximum deflection by a predetermined value.

8. The manual control device in accordance with claim 7, wherein the evaluating unit is configured to adjust the predetermined value during operation of the manual control device to the maximum deflection of the actuation element.

9. The manual control device in accordance with claim 7, wherein the predetermined value comprises 80% to 90% of the maximum deflection of the actuation element.

10. The manual control device in accordance with claim 1, wherein the actuating unit comprises a manually unlatchable locking device which, in the non-actuated state, prevents the actuation element from being moved.

11. The manual control device in accordance with claim 10, comprising a guide which cooperates with the manually unlatchable locking device and is movable relative to the actuation element in the actuated state of the manually unlatchable locking device, wherein the manually unlatchable locking device comprises:

a rod comprising a tapering lower end arranged in the region of the guide, wherein the rod is arranged to be movable in a guide pipe of the actuation element received in the guide, and

one or several balls arranged between an inner wall of the guide and the rod, wherein the inner wall of the guide comprises one or several recesses for partly receiving the balls, and wherein the guide pipe comprises one or several holes for partly receiving the balls.

12. The manual control device in accordance with claim 11, wherein:

in the non-actuated state of the manually unlatchable locking device, the non-tapering part of the rod is arranged in the region of the holes such that a ball is partly arranged in a hole and extends into a recess in the guide such that movement of the guide and, thus, of the actuation element is not possible, and

in the actuated state of the manually unlatchable locking device, the tapering part of the rod is arranged in the region of the holes such that a ball is partly arranged in a hole and extends into the guide pipe such that movement of the guide and, thus, of the actuation element is possible.

13. The manual control device in accordance with claim 1, comprising a bellows, the bellows comprising a basically cylindrical shape.

14. The manual control device in accordance with claim 1, wherein the actuating unit comprises attaching devices by means of which the actuating unit is attachable detachably to the control and operating unit, wherein the attaching devices are arranged at the actuating unit such that mounting the actuating unit to the control and operating unit is possible only in a predetermined direction or position.

15. The manual control device in accordance with claim 13, wherein the attaching devices comprise screws or click-in devices.

16. A control and operating unit comprising a manual control device in accordance with claim 1.

17. A lifting work platform, work machine or construction machine comprising a control and operating unit in accordance with claim 16.