Cab for accomodating the operator of a vehicle or machine

• US 5,673,963 A
• Filed: 01/23/1995
• Issued: 10/07/1997
• Est. Priority Date: 03/18/1993
• Status: Expired due to Fees

• Current Assignee: Pietzsch Automatisierungstechnik GmbH
• Original Assignee: Pietzsch Automatisierungstechnik GmbH
• Inventors: Pietzsch, Ludwig
• Primary Examiner(s): PAPE, JOSEPH
• Application Number:
  US08/331,139
• Time in Patent Office: 988 Days
• Field of Search: 296/190, 296/70, 180/89.12, 180/90
• US Class Current: 296/190.01
• CPC Class Codes: B60K 2360/682 Arrangements to cover or hide instruments
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/10 Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
• CPC Class Codes: B60K 35/22 Display screens
• CPC Class Codes: B60K 35/53 Movable instruments, e.g. slidable
• CPC Class Codes: B60R 11/02 for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
• CPC Class Codes: B60R 11/0235 of flat type, e.g. LCD
• CPC Class Codes: B60R 11/0264 for control means
• CPC Class Codes: B60R 2011/0028 Ceiling, e.g. roof rails
• CPC Class Codes: B60R 2011/0082 collapsible, e.g. for storing after use
• CPC Class Codes: B60R 2011/0084 with adjustment by linear movement in their operational position
• CPC Class Codes: B60R 2011/0087 around two axes
• CPC Class Codes: B60R 2011/0094 characterised by means for covering after user, e.g. boxes, shutters or the like
• CPC Class Codes: B60R 2011/0288 Apparatus made of several modules independently mounted
• CPC Class Codes: B66C 13/54 Operator's stands or cabins
• CPC Class Codes: E02F 9/26 Indicating devices E02F5/145 takes precedence

Abstract

A cab for accommodating the operator of a vehicle or machine, especially a traveling crane or other type of construction machinery. It comprises a seat for the operator, an operating-information display system with a monitor and display instruments in the seated operator'"'"'s field of vision, and at least one optionally multiple-function operations-control device directly within his reach. The information-display system consists of a monitor with a liquid-crystal display and of a projection screen remote therefrom. The screen pivots around one axis and tilts around another axis at an angle thereto within the operator'"'"'s field of vision. A source of light behind the monitor projects the displayed information onto the screen.

Claims

1. A cab for accommodating an operator of a vehicle or machine, comprising:

a seat for the operator;

an operating-information display system with display instruments in the seated operator'"'"'s field of vision;

at least one multiple-function operations-control means directly within reach of the operator;

said information-display system having a monitor with a liquid-crystal display and a projection screen remote from said liquid-crystal display, said projection screen pivoting around a first axis and tilting around a second axis within the operator'"'"'s field of vision; and

a source of light within the monitor and spaced from said liquid-crystal display for projecting displayed information onto said screen.

2. A cab as defined in claim 1, wherein said projection screen is at least semitransparent.

3. A cab as defined in claim 2, wherein said screen is antiglare.

4. A cab as defined in claim 3, wherein said screen has a variable transparency.

5. A cab as defined in claim 4, wherein said screen has a transparency varying automatically in accordance with incident sunlight.

6. A cab as defined in claim 4, including a manually handled filter for varying transparency of said screen.

7. A cab as defined in claim 4, including a mechanically handled filter for varying transparency of said screen.

8. A cab as defined in claim 1, wherein information from said liquid-crystal display is projected onto said screen with parallel beams.

9. A cab as defined in claim 1, wherein said screen is positioned directly in a path of beams emitted by said source of light and traveling through said liquid-crystal display.

10. A cab as defined in claim 1, including at least one mirror positioned at an angle to beams emitted by said source of light for projecting said displayed information onto said screen.

11. A cab as defined in claim 1, including-first means to pivot said screen around said first axis, and second means to tilt said screen around said second axis.