JP2574419Y2 - Display for construction machinery - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to a construction machine for a display device for displaying such information necessary for the operation of construction machinery.

[0002]

2. Description of the Related Art In a cab (cabin) of a construction machine, for example, a power shovel, of a vehicle, a window glass is provided not only in front of a driver's seat but also in front of a driver's feet in order to ensure visibility during work. Is also provided. In this connection, it is common that all fuel gauges, oil pressure gauges, clocks, and other indicators for displaying information necessary for driving are installed beside the driver's seat.

[0003]

However, in the above configuration, since the indicators are installed not in front of the driver but in the side, there is a problem that they are difficult to see and are inconvenient to use.

Accordingly, an object of the present invention is to provide a display for a construction machine which can be attached to a portion which is easy for a driver to see and which can improve the usability.

[0005]

This invention SUMMARY OF THE INVENTION The construction a construction machine for display for displaying the information necessary for the operation of the construction machine, a body with a solar cell as a power source, the main body The window frame in front of the cab of the machine or this window frame
Mounting means for detachably or movably mounting to a holding frame, receiving means provided on the main body for receiving a signal emitted from a transmitting section, and provided on the main body, wherein the solar cell is used as a power supply and the reception is performed. Display means for displaying based on the contents received by the means.

[0006]

According to the above-mentioned means, since the main body has a so-called wireless structure and does not require wiring, the main body can be attached to, for example, a portion in front of the driver's seat where it is easy for the driver to see and does not interfere. it can.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. First, FIG. 4 shows an excavator 1 as a construction machine , 2 is an operator's cab (cabin), and 3 is a door. An iron plate frame 4 is provided in front of the cab 2, that is, in front of the driver's seat, and an upper window glass 5 and a lower window glass 6 are provided on the frame 4 as shown in FIG. I have.

Reference numeral 7 denotes a display according to the present invention, which will be described with reference to FIGS. 1 to 3 and FIG. Reference numeral 8 denotes a main body formed in a rectangular box shape of, for example, a transparent acrylic resin. Two solar cells 9 serving as a power supply are mounted on an inner surface of an upper portion.
0 is attached.

A display panel 11 having a display section on which characters and symbols are printed and displayed is provided on the front surface of the main body 8.
In this case, as the display unit, the remaining fuel amount display unit 11a,
It has a temperature display section 11b, a mode display section 11c, another display section 11d, and a clock 11e. A liquid crystal panel 12 as a display means is provided on the back surface of the display panel 11, and the liquid crystal panel 12 transmits each light from the back side to the front side to display each display unit in a display state (shaded lines in FIG. 2). ), And usually uses natural light as a light source.

Reference numeral 13 denotes a wiring board provided inside the main body 8, and reference numeral 14 denotes an auxiliary lamp as an auxiliary light source provided on the wiring board 13. This auxiliary lamp 14 is used when the surroundings are dark as described later. When lit, the liquid crystal panel 12 is irradiated with light through the light guide 15 from behind.

Reference numeral 16 denotes a C provided on the upper surface of the main body 8, for example.
An optical sensor made of dS (cadmium sulfide) detects the amount of ambient light and outputs a detection signal to a processing circuit 18 via a light receiving circuit 17 as shown in FIG.

Reference numeral 19 denotes a receiving circuit as a receiving means provided in the main body 8, which receives a radio signal transmitted from a transmitting unit 20 of a controller (not shown) installed in the cab 2 as shown in FIG. And outputs a signal corresponding thereto to the processing circuit 18.

The power supply circuit 21 charges electric energy from the solar cell 9 and supplies power to the reception circuit 19 and the like via a standby circuit 22.

The processing circuit 18 controls the liquid crystal panel 12 via a liquid crystal driving circuit 23 based on a signal from the receiving circuit 19.
Is activated, and the auxiliary lamp 14 is turned on via the lamp drive circuit 24 when the surroundings are determined to be dark based on the signal from the light receiving circuit 17.

The indicator 7 having such a structure is attached to the iron-made window frame 5a of the upper window glass 5 in the cab 2 by the permanent magnet 10 as shown by a solid line in FIG. Or a permanent magnet 10 on an iron plate window frame 6a of the lower window glass 6 as shown by a two-dot chain line in FIG.
Attach through. Thus, the display 7 can be installed in a place where it is easy for the driver to see and does not get in the way, and the usability can be improved. If the display 7 is in the way, the display 7 may be removed and the mounting place may be changed.

The present invention is not limited to the above-described embodiment. For example, a suction cup may be used instead of the permanent magnet 10 as the mounting means. In addition, as shown in FIG. 7 as another embodiment of the present invention, one end of the indicator 7 is turned around the frame 4 by a pin 25 as an attachment means in the cab 2 as shown in FIG. It is also possible to adopt a configuration in which the display 7 is movably supported and the display 7 is rotated between a standing state and a horizontal state. Further, although not shown, for example, rails may be provided on both left and right sides of the upper window glass 5, and the display 7 may be mounted movably up and down along the rails.

[0017]

As is apparent from the above description, the construction machine display of the present invention has a so-called wireless structure and requires no wiring. It can be used by being attached to a part that is easy for the user to see, and has an excellent effect that the usability can be improved. In addition, solar cells are used as power sources
So there is no need to replace batteries in principle,
There is an advantage that can be easily performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of an indicator showing one embodiment of the present invention.

FIG. 2 is a front view of the display.

FIG. 3 is a plan view of the display.

FIG. 4 is a perspective view of a shovel car.

FIG. 5 is a longitudinal sectional side view of a cab portion.

FIG. 6 is a block diagram showing an electrical configuration of the display.

FIG. 7 is a front view from the inside of a cab showing a different embodiment of the present invention.

[Explanation of symbols]

1 is a shovel car (construction equipment), 2 is a cab, 4 is a frame
Body, 5a, 6a are window frames, 7 is a display, 8 is a main body, 9 is a solar cell (power supply), 10 is a permanent magnet (attachment means), 12 is a liquid crystal panel (display means), 19 is a reception circuit (reception). Means, 20 is a transmitting section, and 25 is a pin (attaching means).

Claims (1)

(57) [Scope of request for utility model registration] 1. A used to display information necessary for the operation of the construction machine, a body with a solar cell as a power source, cab in front of the window frame or child in the construction machine to the body
Mounting means for detachably or movably mounting the frame on a frame supporting the window frame; receiving means provided on the main body for receiving a signal emitted from a transmitting section; provided on the main body; A display device for performing display based on the content received by the receiving device.