JP2003221844A - Monitor camera setting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitor camera setting structure which dispenses with a monitor camera housing chamber on a counterweight, and allows the monitor camera to be set on the counterweight without welding. <P>SOLUTION: The monitor camera setting structure includes a support means for supporting the monitor camera 4 on the counterweight 3 which has holding holes 14 for use when built in construction equipment, and is formed of a casting, and fastening means for fastening the support means to the counterweight 3. Each fastening means is formed of a bolt 13, for instance. The support means is comprised of a pair of mounting plates 9 each having a hole 10 into which the bolt 13, for instance, is inserted, and being fixed to the counterweight 3 by means of the bolt 13, a long member 8 connected to the mounting plates 9, a bracket 5 for supporting the monitor camera 4, a mounting seat 6 to which the bracket 5 is fixed, and another bolt 11 and a nut 12 for fixing the mounting seat 6 to the long member 8. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance camera installation structure which is provided in a working machine such as a hydraulic excavator provided with a counterweight having a hanging hole which is utilized at the time of assembling and installs the surveillance camera on the counterweight.

[0002]

2. Description of the Related Art As a conventional technique of this kind, there is one disclosed in Japanese Utility Model Registration No. 2592085. In this conventional technique, a counterweight provided in a hydraulic excavator has a storage chamber, and a surveillance camera is attached to the storage chamber via a supporting means, and a rear image at a blind spot is provided in the driver's cab by the surveillance camera. It is designed to be visible on the display.

[0003]

The above-mentioned conventional technique requires a specially shaped counterweight having a storage chamber, which causes a problem that the cost of manufacturing the counterweight increases. Further, when the surveillance camera is provided on the counterweight of the existing hydraulic excavator, the counterweight is limited to the one having the above-mentioned storage chamber, and therefore, the installation of the surveillance camera is restricted to the existing hydraulic excavator. There's a problem.

Here, in the case where the existing work machine, for example, the counterweight of the hydraulic excavator does not have the storage room for the surveillance camera as described above, considering the installation of the surveillance camera on the counterweight, the following is performed. become.

Generally, there are two types of counterweight, one made of casting and the other made of iron formed by combining steel plates in a box shape. When the weight is the same, a cast product can be formed to have a small overall shape, while an iron product is box-shaped, so that the overall shape tends to be large.

When the surveillance camera is installed on the counterweight, it is usually considered that the surveillance camera is fixed to the counterweight by welding. However, since the casting cannot be welded, the surveillance camera cannot be installed on the casting counterweight.
That is, the monitoring camera cannot be installed by welding on an existing hydraulic excavator equipped with a casting counterweight, that is, on a hydraulic excavator that has been subjected to many operations at the work site. It will be necessary to take some special measures.

On the other hand, since the counter weight made of iron can be welded, it is possible to install the surveillance camera on the counter weight by welding. However, in this case, a large-scale welding work is required, and there is a problem that the cost required to install the surveillance camera becomes high.

In recent years, as a hydraulic excavator utilized in a narrow work environment such as in a town, the counterweight is made of cast metal so as not to collide with surrounding obstacles such as electric poles during turning operation, and the turning radius is made as small as possible. There is a set rear small swing hydraulic excavator, but in such a rear small swing hydraulic excavator, if the counterweight does not have the storage chamber as shown in the above-mentioned publication, as described above, other than welding. It is not possible to install a surveillance camera for monitoring the rear on the counterweight without using some means.

The present invention has been made in view of the above-mentioned prior art, and an object thereof is to provide a counterweight for a surveillance camera without providing a storage room for the surveillance camera in the counterweight and without welding. It is to provide a surveillance camera installation structure that can be installed.

[0010]

In order to achieve the above-mentioned object, the present invention is provided in a working machine provided with a counterweight having a hanging hole utilized at the time of assembling, and supports a surveillance camera on the counterweight. In a surveillance camera installation structure equipped with a supporting means, screwed into the hanging hole,
A fastening means for fastening the supporting means to the counterweight is provided.

According to the present invention thus constructed, in a state where the surveillance camera is supported by the support means, the fastening means is screwed into the hanging hole provided in the counterweight and the support means is fastened, whereby the surveillance is performed. The camera can be fixed on the counterweight.

Generally, the hanging hole is utilized when the counterweight is incorporated into the body of the construction machine, and is provided on the upper surface of the counterweight. At the time of assembling, an eyebolt or the like having a hook portion is screwed into the hanging hole. A wire or the like is hung on the hook portion to suspend the counterweight, and the counterweight is set at a predetermined position.

Therefore, it is not necessary to provide a storage room for the surveillance camera in the counterweight, and this counterweight can be manufactured normally. Also, the surveillance camera can be fixed by the fastening work by the fastening means,
No welding work is required.

A bolt may be provided as the fastening means described above.

Further, the above-mentioned supporting means has a void portion into which the bolt is inserted, and a mounting plate fixed on the counterweight by the bolt, and an elongated member connected to the mounting plate. It may be configured to include a bracket that supports the surveillance camera and a fixing unit that fixes the bracket to the elongated member.

According to this structure, the bracket is fixed to the elongated member via the fixing means in a state where the surveillance camera is supported by the bracket, and the bracket is connected to the elongated member in the space of the mounting plate. The surveillance camera can be fixed on the counterweight by screwing the bolt into the hanging hole of the counterweight with the bolt inserted.

The fixing means may include a mounting seat to which the bracket is fixed, and another bolt that fixes the mounting seat to the elongated member.

With this structure, the bracket is fixed to the mounting seat while the surveillance camera is supported by the bracket, and the mounting seat is fixed to the long member by another bolt.

A cover may be provided to cover the above-mentioned surveillance camera.

A clip band having a cable connected to a monitor arranged in a driver's cab and a cord of the surveillance camera connected to the cable, and holding the cord or the cable on the elongated member. May be provided.

The counterweight may be made of cast metal.

Further, the working machine may be constituted by a rear small swing hydraulic excavator.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a surveillance camera installation structure of the present invention will be described below with reference to the drawings.

1 to 6 are explanatory views showing an embodiment of the surveillance camera installation structure of the present invention, and FIG. 1 is an example of a working machine to which the embodiment of the surveillance camera installation structure of the present invention is applied. 2 is a perspective view showing a main body portion of the rear small swing hydraulic excavator, FIG. 2 is an exploded perspective view showing one embodiment of the surveillance camera installation structure of the present invention applied to the rear small swing hydraulic excavator shown in FIG. 1, and FIG. 1 is a perspective view showing a state in which an embodiment of the present invention is attached to the small rear swing hydraulic excavator shown in FIG.
FIG. 4 is a perspective view showing a driver's cab portion provided in the small rear swing hydraulic excavator shown in FIG. 1, and FIG. 5 is a structure for installing a monitor equipped in the driver's cab shown in FIG. 4 and connected to a monitoring camera shown in FIG. FIG. 6 is an exploded perspective view of FIG. 6, and FIG. 6 is a perspective view showing a state in which the monitor installation structure shown in FIG. 5 is installed in the cab shown in FIG.

The main body of the small rear swing hydraulic excavator shown in FIG. 1 comprises a swing body 1 having a driver's cab 2, and a counterweight 3 made of, for example, a casting, is provided at the rear portion of the swing body 1. Although not shown, a traveling body is provided below the revolving superstructure 1, and a boom, an arm, a bucket, and these booms, arms, are provided on the front side of the revolving superstructure 1.
A front member including a boom cylinder, an arm cylinder, a bucket cylinder and the like for operating the bucket is provided.

On the upper surface of the counterweight 3 described above,
As shown in FIG. 2, a pair of hanging holes 14 are formed.
The hanging hole 14 is utilized when the counterweight 3 is incorporated into the main body, that is, the rear portion of the revolving structure 1. When the counterweight 3 is assembled, an eyebolt or the like having a hook portion is screwed into the hanging hole 14, a wire or the like is hung on the hook portion, and the counterweight 3 is hung.
It is designed to be installed in place.

This embodiment is characterized in that the hanging hole 14 of the counterweight 3 is utilized when the surveillance camera 4 shown in FIGS. 2 and 3 is attached to the counterweight 3.

That is, the support means for supporting the surveillance camera 4 on the counterweight 3 is provided, and it is screwed into the hanging hole 14 formed on the upper surface of the counterweight 3 to fasten the support means to the counterweight 3. Means, for example bolts 13, are provided.

As shown in FIG. 2 and the like, the above-mentioned support means has a void, for example, a hole 10 into which the bolt 13 is inserted, and a pair of mounting plates 9 fixed to the counterweight 3 by the bolt 13. , A long member 8 formed by combining, for example, a pipe material, which is connected between the pair of mounting plates 9, a bracket 5 for supporting, for example, the above-mentioned surveillance camera 4 in a swingable manner, and the bracket 5 having a long member 8. And fixing means for fixing to.

The fixing means described above includes, for example, a mounting seat 6 to which the bracket 5 is fixed, another bolt 11 for fixing the mounting seat 6 to the elongated member 8, and a nut 12 screwed to the other bolt 11. Includes and.

Further, there is provided a cover 7 which covers the surveillance camera 4 and the bracket 5 and is fixed to the above-mentioned mounting seat 6.

As shown in FIG. 3, the cord 15 of the surveillance camera 4 is connected to the cable 16 of the monitor 29 arranged in the driver's cab 2 described later, and the cord 15 of the camera 4 or the cable of the monitor 29 is connected. A clip band 17 for holding 16 on the long member 8 is provided.

As shown in FIGS. 4 and 6, a stay 18 formed by bending a rod-shaped member, for example, on the side wall surface inside the cab 2
Are fixed by bolts 19.

The monitor 9 showing the image taken by the surveillance camera 4 is fixed to the stay 18 in the cab 2 as follows.

That is, a pair of brackets 20 and 21 are arranged so as to sandwich the stay 18, and the bracket 2
0, 21 with the bolt 22 and the nut 23 stay 1
Fix at 8.

The rod 25 having a threaded portion attached to the support piece 24 formed on the bracket 20 is inserted into the insertion hole 32 formed in the upper portion of the attachment seat 26 so that the attachment seat 26 is attached to the rod 25. , Insertion hole 3 for mounting seat 26
The washer 27 is inserted into the end of the rod projecting from 2, and the wing nut 28 is screwed from the outside of the washer 27. The mounting seat 16 is held on the rod 25 by tightening the wing nut 28.

With the monitor 29 arranged in front of the mounting seat 26, the monitor 29 is fixed to the mounting seat 26 with bolts (not shown). The harness 30 provided at the end of the cable 16 is connected to a predetermined position on the monitor 29. Harness 3
Attach the cable 16 near 0 to the mounting seat 2 via the bolt 31.
Fix at 6.

As shown in FIG. 6, the cable 16 extending along the stay 18 is a clip band 17.
It is held by the stay 18 via.

In the present embodiment thus constructed, the image of the rear of the revolving structure 1 photographed by the monitoring camera 4 is
It can be displayed on the monitor 29 of the operator's cab 2 via the cord 15, the cable 18, and the harness 30, and work safety and efficiency improvement by the small swing hydraulic excavator can be realized.

Further, as shown in FIGS. 2 and 3, the supporting means for supporting the surveillance camera 4 can be attached by screwing the bolt 13 into the hanging hole 14 of the counterweight 3. That is, the counterweight 3 does not need to be specially processed such as providing a storage room for the surveillance camera 4,
Therefore, it is possible to suppress an increase in the manufacturing cost of the counterweight 3.

In addition to the newly-existing hydraulic excavator in which the work at the work site has not yet been performed, the existing hydraulic excavator in which the work at the work site has been carried out many times does not require welding work and does not require counter work. Weight 3
The surveillance camera 4 can be installed on the top, the installation work is easy, and the cost required to install the surveillance camera 4 is low.

Furthermore, since welding work is not required, the surveillance camera 4 can be installed even if the counterweight 3 is made of cast metal.

In the above embodiment, the rear small turning hydraulic excavator is mentioned as an example of the working machine on which the monitoring camera 4 is installed, but the present invention is not limited to this, and a counter including a hydraulic excavator of another model. You may make it provide in the working machine which has the weight 3.

Further, the counter weight 3 is not limited to the casting, and may be installed on an iron counter weight.

[0045]

According to the present invention, because of the above-described structure, the surveillance camera can be installed without providing a storage room for the surveillance camera in the counterweight, and thus the increase in the manufacturing cost of the counterweight can be suppressed. be able to.

Further, the surveillance camera can be installed on the counterweight by fastening work instead of welding, the installation work is easy, and the cost required for installing the surveillance camera can be suppressed.

Further, not only iron counterweights but also casting counterweights can be equipped with a monitoring camera, and therefore, both new work machines and existing work machines having counterweights can be monitored. A camera can be installed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main body part of a small rear swing hydraulic excavator taken as an example of a working machine to which an embodiment of a surveillance camera installation structure of the present invention is applied.

2 is an exploded perspective view showing an embodiment of a surveillance camera installation structure of the present invention applied to the small rear swing hydraulic excavator shown in FIG. 1. FIG.

FIG. 3 is a perspective view showing a state in which an embodiment of the present invention is attached to the small rear swing hydraulic excavator shown in FIG. 1.

FIG. 4 is a perspective view showing a cab portion provided in the small rear swing hydraulic excavator shown in FIG. 1.

5 is an exploded perspective view showing an installation structure of a monitor installed in the cab shown in FIG. 4 and connected to the surveillance camera shown in FIG. 2.

6 is a perspective view showing a state in which the monitor installation structure shown in FIG. 5 is installed in the cab shown in FIG.

[Explanation of symbols]

1 revolving structure 2 cab 3 counterweight 4 surveillance cameras 5 Bracket [Supporting means] 6 Mounting seat (fixing means) 7 cover 8 Stay (long member) [Supporting means] 9 Mounting plate [Supporting means] 10 holes (void) 11 Another bolt (fixing means) 12 Nut (fixing means) 13 bolts (fastening means) 14 hanging holes 15 codes 16 cables 17 clip bands

Claims (8)

[Claims] 1. A surveillance camera installation structure, which is provided in a working machine having a counterweight having a suspension hole utilized at the time of assembling, and has a supporting means for supporting the surveillance camera on the counterweight. A surveillance camera installation structure comprising a fastening means for fastening the support means to the counterweight. 2. The surveillance camera installation structure according to claim 1, wherein the fastening means is a bolt. 3. A mounting plate, wherein the supporting means has a void portion into which the bolt is inserted, and is fixed to the counterweight by the bolt, an elongated member connected to the mounting plate, The surveillance camera installation structure according to claim 2, further comprising a bracket that supports the surveillance camera, and a fixing unit that fixes the bracket to the elongated member. 4. The surveillance camera installation according to claim 3, wherein the fixing means includes a mounting seat to which the bracket is fixed, and another bolt that fixes the mounting seat to the elongated member. Construction. 5. The surveillance camera installation structure according to claim 3, further comprising a cover for covering the surveillance camera. 6. A clip band having a cable connected to a monitor arranged in a cab and a cord of the surveillance camera connected to the cable, and holding the cord or the cable on the elongated member. The surveillance camera installation structure according to any one of claims 3 to 5, further comprising: 7. The surveillance camera installation structure according to claim 1, wherein the counterweight is made of cast metal. 8. The surveillance camera installation structure according to claim 1, wherein the work machine comprises a small rear swing hydraulic excavator.