Construction machine

• US 20030085995A1
• Filed: 06/13/2002
• Published: 05/08/2003
• Est. Priority Date: 06/15/2001
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Sawada, Hiroshi, Katou, Hajime, Yokoyama, Toshio, Haga, Seiya
• Granted Patent: US 7,466,337 B2
• Time in Patent Office: Days
• US Class Current: 348/118
• CPC Class Codes: E02F 9/0858 Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units E02F9/16, E02F9/18 take precedence
• CPC Class Codes: E02F 9/261 Surveying the work-site to be treated
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A construction machine comprises a lower traveling body and an upper revolving body rotatably attached to the lower traveling body via a revolving mechanism 2, wherein a rear surveillance camera is arranged on a back surface side of the upper revolving body between a counter weight of the upper revolving body and a swing circle of the revolving mechanism, and right and left crawler end portions of the lower traveling body 1 can be simultaneously visually checked by means of the rear surveillance camera.

Claims

1. A construction machine provided with a lower traveling body (1) and an upper revolving body (3) that is rotatably attached to the lower traveling body (1) via a revolving mechanism (2), wherein a rear surveillance camera (38) is arranged on a back surface side of the upper revolving body (3) between a counter weight (12) of said upper revolving body (3) and a swing circle (16) of said revolving mechanism (2), and right and left crawler end portions (8a) (8a) of said lower traveling body (1) can be simultaneously visually checked by means of the rear surveillance camera (38).

2. The construction machine according to claim 1, wherein a lower rear end part of the counter weight (12) further can be visually checked by means of said rear surveillance camera (38).

3. The construction machine according to claim 1 or 2, wherein said rear surveillance camera (38) is arranged in an inner surface side of an under cover (21) of a revolving frame (10) of said upper revolving body (3).

4. The construction machine according to claim 3, wherein switching between a storing state in which said rear surveillance camera (38) is stored in the revolving frame (10) side and a visual check possible state in which the rear surveillance camera (38) is exposed to the outside is possible, and the switching is operated through a switching operation by an operator in an operator'"'"'s cab (25) of the upper revolving body (3).

5. A construction machine provided with a lower traveling body (1) and an upper revolving body (3) that is rotatably attached to the lower traveling body (1) and said lower traveling body (1) is made to travel forward or backward by operating traveling operation means (26), wherein a rear surveillance camera (38) is arranged on said upper revolving body (3) and that an image from said rear surveillance camera (38) is displayed on a monitor screen (39) by operating said traveling operation means (26).

6. The construction machine according to claim 5, wherein switching between a first mode in which an image from said rear surveillance camera (38) is displayed on said monitor screen (39) and a second mode in which a vehicle body condition is displayed on said monitor screen is possible, and the switching is operated through an operation of said traveling operation means (26).

7. A construction machine provided with a lower traveling body (1) and an upper revolving body (3) that is rotatably attached to the lower traveling body (1) and said lower traveling body (1) is made to travel forward or backward by operating traveling operation means (26), wherein a rear surveillance camera (38) is arranged on said upper revolving body (3) and a switch (48) for allowing a monitor screen (39) to be in a state of displaying an image from said rear surveillance camera (38) is provided in said traveling operation means (26).