JP2000179006A - Working light mounting structure for construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widen a range of illumination, and eliminate possibity of being damaged during operation. SOLUTION: This structure has a lower traveling body 1 having a travel device 2, a body frame 3 connected on an upper part of the lower traveling body 1, a cab 4 loaded in one side of right and left sides of a front part on the body frame 3, a structure arranged on a side part placed opposite to right and left sides of the cab 4 on the body frame 3, and an equipment arranging space 20 arranged forward of the structure. Then, a height position of an upper surface of the equipment arranging space 20 is set lower than a height position of an upper surface of the structure, and a working light device 22 is fixed on a front surface of the structure on a line where the vicinity of a front end of an upper surface of the travel device 2 is connected with the vicinity of a front end of an upper surface of the equipment arranging space 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a working light device for forward irradiation used for night work of construction machines such as hydraulic excavators.

[0002]

2. Description of the Related Art FIG. 5 shows a hydraulic shovel according to an embodiment of the prior art described in Japanese Patent Application Laid-Open No. 9-119147.
In the figure, 1 is a lower traveling body, 2 is a traveling device, 3 is a body frame, 4 is a cab, 5 is a counterweight, 6 is a work device, 7 is a work light device, and 8 is mounted on the body frame 3. One of the structures 9 is an equipment arrangement space. In this embodiment, a cable reel 10 for detaching and using the work light device from the body frame 3 is housed and arranged. Reference numeral 11 denotes a cover member that covers a space for disposing devices, and 12 denotes an opening provided in front of the cover member.

In the prior art shown in FIG. 5, a work light device 7 for performing various operations such as excavation work at night or the like is disposed inside a device arrangement space 9 and a cover member 11 for covering the device arrangement space 9 is provided. An area near the lower front is illuminated from an opening 12 opened forward. According to this, for example, during excavation work, it is possible to irradiate the soil to be excavated.

FIG. 6 is a cross-sectional view of a main part on the right front side of a hydraulic excavator (backhoe) according to another embodiment of the prior art described in Japanese Utility Model Application Publication No. 58-25355. Components that are the same as those in FIG. 5 are denoted by the same reference numerals. 13 is a battery, 14 is a tool box, 15 is a support member for supporting the work light device 7, 16 is a cover member for covering the upper part of the tool box and the battery and work, and 17 is for opening and closing the cover member 16 in the front-rear direction. Hinge.

According to the prior art shown in FIG.
No. 5,355, entitled "The work light device for excavation (7) is attached to the battery cover (16) in a state where the work light device (7) is protruded from the opening formed in the rearwardly inclined portion of the (cover member 16).
The work lamp device (7) is configured to be capable of downward irradiation. "
As far as the structure shown in (1) is concerned, it can be assumed that the structure is fixed via the support member 15 to the structure 8 arranged and mounted on the body frame 3.

[0006]

According to the prior art shown in FIG. 5, a work light device 7 is arranged inside a device arrangement space 9. In this equipment arrangement space 9, FIG.
In general, a battery, a tool box and the like are arranged as shown in FIG. 5, but if the work light device 7 and the like are arranged inside the equipment arrangement space 9 as shown in FIG. It becomes narrow, and not only does the layout of the equipment be restricted, but also it becomes difficult to arrange the equipment itself with a relatively small hydraulic excavator.
Further, since the work light device 7 is disposed at a low position, the soil and the like rolled up by the traveling device 2 are applied to the work light device 7 and become dirty, so that a sufficient amount of light cannot be obtained. In the case where the work light device 7 is wound up, the lens of the work light device 7 may be damaged. Further, since the work light device 7 is disposed at a low position, the distance between the work light device 7 and the ground is short, and there is also a problem that the irradiation range is narrowed.

According to the prior art shown in FIG. 6, since the work light device 7 is mounted above the device shown in FIG. Since the work light device 7 does not affect the space in which the battery 13 and the tool box 14) are mounted, a sufficient space can be obtained, and the degree of freedom of the device layout is increased.

However, according to the configuration shown in FIG. 6, since the working light device 7 is arranged at a high place, when the vibration of the hydraulic shovel acts, the amplitude becomes larger than when the work shovel is arranged at a low place. The irradiation range of the work light device 7 tends to fluctuate, thereby deteriorating the visibility and deteriorating the workability.

In addition, since the working light device 7 is mounted on the structure 8 behind the equipment arrangement space 9, the working light device 7
Is blocked by the equipment arrangement space 9 and the traveling device 2 (not shown), and the vicinity of the traveling device 2 cannot be irradiated. In FIG. 6, the work light device 7 is positioned forward by fixing it to the structure 8 on the body frame 3 via the relatively long support member 15. Likely to happen.

Further, in the configuration shown in FIG. 6, the cover member 16 becomes large, so that the battery 13 and the work light device 7 are maintained regardless of whether the maintenance of the battery 13 or the work light device 7 is performed. It is necessary to open the large-sized cover member 16 covering the above, and the workability is poor.

[0011]

A lower traveling body having a traveling device, a body frame connected to an upper portion of the lower traveling body, a cab mounted on one side in front of right and left sides of the body frame; In a construction machine having a structure disposed on the side opposite to the left and right of the cab on a body frame, and a device placement space disposed in front of the structure, a height position of an upper surface of the device placement space Is set lower than the height position of the upper surface of the structure, the work light device is located on the line connecting the vicinity of the upper surface front end of the traveling device and the upper surface front end of the equipment arrangement space, the front of the structure Fixed to.

According to this, since the work light device is not arranged in the equipment arrangement space, a sufficient capacity can be obtained in the equipment arrangement space, and the degree of freedom in the equipment arrangement layout is increased. In addition, since the work light device is arranged at a high place and behind the front end of the equipment placement space, the irradiation range of the work light device is widened, the workability is improved in excavation work etc., and the traveling device is used. It is possible to prevent the work light device from being soiled by the soil and the like that has been rolled up, or to prevent the lens of the work light device from being damaged by pebbles that have been rolled up by the traveling device. Furthermore,
Since the work light device is arranged on a line connecting the vicinity of the upper front end of the traveling device and the vicinity of the upper front end of the equipment arrangement space, it is possible to reduce the light emitted from the work light blocked by the traveling device and the equipment arrangement space. In addition, the workability is improved in excavation work and the like, and the height of the structure is made unnecessarily high, and the arrangement of the work light device above the upper surface of the structure can be avoided as much as possible. In addition, since the work light device is attached to the front of the structure arranged behind the equipment arrangement space, the work light device can be firmly fixed without providing a special support member on the cover member covering the work light device. .

Further, when the structure is an oil storage tank, oil such as hydraulic oil or fuel filled in the oil storage tank absorbs, for example, the running vibration of a hydraulic shovel or the vibration accompanying the work, thereby suppressing the vibration. Since the vibration effect is exhibited, the vibration of the oil storage tank converges at an early stage, whereby the vibration of the work light device can be suppressed, and the light irradiation range from the work light device can be prevented from fluctuating.

Alternatively, a construction machine having an airframe, a cab disposed on one side of the front of the airframe, and an oil storage tank disposed on the airframe on the side opposite to the left and right of the cab. In the above, a working light device for forward irradiation was fixed to the front side of the oil storage tank.

According to this, when the structure is an oil storage tank, the oil such as hydraulic oil or fuel filled in the oil storage tank absorbs, for example, the running vibration of the hydraulic shovel and the vibration accompanying the work. In order to exhibit the vibration damping effect, the vibration of the oil storage tank converges at an early stage, whereby the vibration of the work light device can be suppressed, and the light irradiation range from the work light device can be prevented from swinging. . Further, since it is not necessary to provide a special support member for fixing the work light device to the cover member, productivity can be improved.

[0016] Still further, there is provided an equipment disposing space formed in front of the oil storage tank on the body frame,
When the work light device is arranged above the equipment arrangement space, the work light device is not arranged in the equipment arrangement space, so that the equipment arrangement space can obtain a sufficient capacity, and The layout also has a high degree of freedom. In addition, since the work light device is arranged at a high place and behind the front end of the equipment placement space, the irradiation range of the work light device is widened, the workability is improved in excavation work etc., and the traveling device is used. It is possible to prevent the work light device from being soiled by the soil and the like that has been rolled up, or to prevent the lens of the work light device from being damaged by pebbles that have been rolled up by the traveling device.

[0017] Further, there is provided a cover member for covering the equipment arrangement space, and a work light cover member for covering the periphery of the work light device, wherein the work light cover member is fixed to the structure. An opening is provided in a front portion of the work light device.

According to this, it is possible to open only the upper part of the equipment arrangement space or to open only the work light device as necessary, and since each cover member can be downsized, the opening and closing operation is easy. In addition, the workability can be improved, and the work light device is not exposed when it is unnecessary. For example, when taking out tools in the equipment arrangement space, the work light device is touched and the irradiation angle shifts. Can be prevented. Also, since the work light cover member is fixed to the structure to which the work light device is attached, the relative position between the opening provided in the cover member and the work light device may be different from the assembly error at the time of construction machine manufacturing. In addition, the work lamp device and the work light cover member can be assembled into the oil storage tank in advance and assembled on the oil storage tank, and then mounted on the body frame, so that productivity can be improved.

[0019]

Embodiments of the present invention will be described with reference to the drawings. The same components as those in the prior art are denoted by the same reference numerals. FIG. 1 is a diagram showing one embodiment of a hydraulic shovel to which the present invention is applied. In the figure, reference numeral 20 denotes a device placement space, 21 denotes a cover member that covers the device placement space,
22 is a work light device, 23 is a work light cover member, 24 is an opening formed in the work light cover member, 25 is one oil storage tank of a structure on the body frame 3, and in this embodiment, a fuel tank. is there. FIG. 2 is an enlarged view of a main part of FIG. 1. In FIG. 2, reference numeral 26 denotes a hinge member for opening and closing the cover member 21. FIG. 3 is a cross-sectional view of a main part of FIG. 2, in which 28 is a battery, 29 is a tool box, and 30 is a support member for fixing and supporting the work light device 22 to the fuel tank 8. FIG. 4 is a front view of a main part of FIG. 2 viewed from the direction A. In FIG.

Next, the configuration of this embodiment will be described with reference to FIGS. The hydraulic excavator shown in the present embodiment is made to run freely by a crawler type traveling device 2 provided on each of the left and right sides of the lower traveling body 1, and has a machine frame 3 pivotally connected to the lower traveling body 1. , A working device 6 connected to the body frame 3 so as to be vertically swingable, and a cab 4 for the operator's cab, a fuel tank 25, other hydraulic oil tanks (not shown), an engine, and various hydraulic devices on the body frame 3. And the like, and a counter weight 5 is connected to the rear end thereof. The work device 6 is configured by sequentially and rotatably connecting work tools (not shown) such as a boom, an arm, and a bucket. For example, a soil excavation operation can be performed by a bucket attached to a tip of the work device 6. it can.

Since the hydraulic excavator is also used for night work, underground work and the like, it is equipped with lighting. Some of the mounting positions of the lighting are fixed to the working device 6 and the cab 4, but in order to obtain a sufficient irradiation range and light amount, the fuel tank 25 and the like mounted on the side opposite to the cab 4 are provided. A working light device for lighting is also arranged in front.

According to the present embodiment, the equipment arrangement space 20 is formed in front of the fuel tank 25, and the cover member 21 is attached so as to cover the equipment arrangement space 20. The cover member 21 is pivotally supported by a hinge member 26 so as to be vertically rotatable.
By pulling up by 1, a space for disposing devices can be opened.

In the equipment arrangement space 20, a battery 28 is provided.
A tool box 29 is mounted, and maintenance of the battery 28 and removal of the tool box can be performed by opening the cover member 21 as necessary.

The equipment arrangement space 20 is set to a height of about half of the fuel tank 25 disposed behind the equipment arrangement space 20. According to this, the upper surface of the cover member 21 is positioned above the body (the fuel tank 25). Can be used as a step to ascend to the upper surface.

A work light device 22 is fixed via a support member 30 to a front surface of a fuel tank 25 above an upper surface of the equipment arrangement space 20. The mounting position of the work light device 22 is near the front end of the upper surface of the traveling device 2 and the cover member 21.
Are arranged on a line connecting near the front end of the upper surface. In this case, it is not necessary to be completely on the line, and it is ideal to arrange it slightly above this line. However, if it is too close to the upper surface of the fuel tank 25, the working light device 22 projects above the upper surface of the fuel tank 25. It is desirable to be arranged almost on the line because it causes an obstacle when the fuel tank 25 rises above the fuel tank 25.

The working light device 22 is capable of adjusting the irradiation direction in the vertical direction with respect to the support member 30 and can be set so as to obtain a desired irradiation direction when performing work.

Next, the operation of the present embodiment will be described with reference to FIGS. When a hydraulic excavator performs excavation work at night, for example, it is necessary to irradiate the ground in an area where excavation is to be performed with a work light device. At this time, the work light device 2
2 is disposed near (slightly above) a line connecting the vicinity of the front end of the upper surface of the traveling device 2 and the vicinity of the front end of the upper surface of the cover member 21, so that the irradiation light from the work light device 22 falls within the range indicated by the angle α in FIG. Can be irradiated. Thereby, the irradiation light can illuminate the area indicated by W on the ground without being blocked by the cover member or the traveling device. In addition, since the working light device 22 is arranged at a high place, the range indicated by W can be irradiated to near the front end of the traveling device 2, and the light is irradiated from a position distant from the ground. It will be wider. Note that the broken line and the angle α ′ in FIG. 1 indicate the irradiation range when the work light device is arranged at the position shown in FIG. 5 of the related art, and is indicated by W ′ on the ground. The range is illuminated, and the vicinity of the traveling device 2 is not illuminated. That is, according to the present invention, since the irradiation can be performed to the vicinity of the traveling device 2, even when the vicinity of the traveling device 2 is excavated or when the vehicle is traveling, the workability is higher than that of the related art illustrated in FIG. 5. Get higher.

In addition, the hydraulic excavator repeatedly advances, stops, and reverses during work, and is often used particularly on a rough road. Therefore, the rotation of the traveling device 2 often causes soil and pebbles to be hoisted. In particular, when the vehicle travels backward (forward when the body frame is turned 180 degrees), the traveling device 2
There is a possibility that the earth and sand or pebbles scraped up by the ridges formed on the tread surface of the unillustrated footwear plate may contact the lens surface of the work light device 22 to cause dirt or damage, but according to the present embodiment, In addition, since the work light device 22 is disposed at a high place and slightly behind, there is no fear that the work light device 22 becomes dirty or damaged.

According to the present embodiment, the working light device 22 is fixed close to the fuel tank 25 via the small supporting member 30. Although the fuel tank 25 is filled with fuel, even when the hydraulic shovel runs or performs various operations, the fuel tank 25 has an early vibration damping effect due to the liquid (fuel) therein. Is obtained. Since the work light device 22 uses the vibration damping effect of the fuel tank 25 by being fixed to the fuel tank 25, the vibration of the irradiation light due to the vibration can be suppressed at an early stage. There is no dazzling or deterioration in visibility due to shaking of the irradiation light. According to the present embodiment, the work light device 22 is connected to the fuel tank 2.
Although it is fixed to 5, the fuel tank must be a fuel tank in order to obtain this vibration damping effect, and may be a hydraulic oil tank (not shown) which is similarly disposed and mounted on the body frame 3.

Further, since the work light device 22 is covered with the work light cover member 23, it is possible to protect the electric wiring and the like to the work light device 22, and to keep the appearance beautiful. Since this work light cover member 23 is formed separately from the cover member 21 that covers the equipment arrangement space 20 so as to be openable and closable, the cover member does not increase in size. Only the cover member 21 needs to be opened, and the opening / closing operation is easy because the cover member 21 is small, and the periphery of the work light device 22 is not unnecessarily opened. It is possible to prevent such a problem that the body touches the work light device 22 and the irradiation angle changes.

Next, when maintenance is required for the work light device, only the work light cover member may be removed to open the periphery of the work light device 22. Since the work light cover member is not frequently opened, the work light cover member may be detachably fixed with, for example, bolts.
Also, since the work light cover member 23 is fixed to the fuel tank 25, when manufacturing a hydraulic excavator, the work light device and the work light cover member 23 are fixed to the fuel tank 25 in advance and assembled. , Can be mounted on the body frame 3. According to this, although the efficiency of the assembling process is of course, since the work light device 22 and the work light cover member 23 are assembled to the same structure, the work light device 22 and the work light cover member 23 Of the work light device 22 and the positional relationship between the work light device 22 and the opening formed in the work light cover member can be improved.

[0032]

According to the first aspect of the present invention, since the work light device is not arranged in the equipment arrangement space, the equipment arrangement space can have a sufficient capacity, and the equipment arrangement layout can be freely designed. Will be higher. In addition, since the work light device is arranged at a high place and behind the front end of the equipment placement space, the irradiation range of the work light device is widened, the workability is improved in excavation work etc., and the traveling device is used. It is possible to prevent the work light device from being soiled by the soil and the like that has been rolled up, or to prevent the lens of the work light device from being damaged by pebbles that have been rolled up by the traveling device.

Further, since the working light device is arranged on a line connecting the vicinity of the front upper end of the traveling device and the vicinity of the upper front end of the equipment arrangement space, the light emitted from the work lamp blocked by the traveling device and the equipment arrangement space is reduced. It is possible to improve workability in excavation work, etc., and to avoid raising the height of the structure more than necessary and arranging the work light device above the upper surface of the structure as much as possible. it can. In addition, since the work light device is mounted on the front surface of the structure arranged behind the equipment arrangement space, the work light device can be firmly fixed without providing a special support member on the cover member.

Further, according to the second aspect of the present invention, the oil such as hydraulic oil or fuel filled in the oil storage tank absorbs, for example, the traveling vibration of the hydraulic shovel or the vibration accompanying the work, thereby exhibiting a vibration damping effect. Therefore, the vibration of the oil storage tank converges at an early stage, whereby the vibration of the work light device can be suppressed, and the light irradiation range from the work light device can be prevented from swaying. Visibility can be secured and workability is improved.

According to the third aspect of the present invention, hydraulic oil or fuel such as fuel filled in the oil storage tank absorbs, for example, running vibration of a hydraulic shovel or vibration accompanying work, thereby exhibiting a vibration damping effect. Therefore, the vibration of the oil storage tank converges early,
Accordingly, it is possible to suppress the vibration of the work light device, and it is possible to prevent the irradiation range of the light from the work light device from fluctuating. Also, since there is no need to provide a special support member for fixing the work light device to the cover member,
Productivity can be improved.

According to the fourth aspect of the present invention, there is provided a device disposing space formed in front of the oil storage tank on the body frame, and the work light device is disposed above the device disposing space. In this case, the work light device is not arranged in the equipment arrangement space, so that the equipment arrangement space can have a sufficient capacity and the equipment arrangement layout has a high degree of freedom. In addition, since the work light device is arranged at a high place and behind the front end of the equipment placement space, the irradiation range of the work light device is widened, the workability is improved in excavation work etc., and the traveling device is used. It is possible to prevent the work light device from being soiled by the soil and the like that has been rolled up, or to prevent the lens of the work light device from being damaged by pebbles that have been rolled up by the traveling device.

Further, according to the fifth aspect of the present invention, it is possible to open only the upper part of the equipment arrangement space or open only the work light device as necessary, and each cover member can be downsized. Opening and closing operation is easy, maintenance is improved, and the work light device is not exposed when it is unnecessary.For example, touching the work light device when taking out tools in the equipment arrangement space Thus, it is possible to prevent the irradiation angle from shifting. In addition, since the work light cover member is fixed to the structure to which the work light device is attached, the relative position between the opening provided in the cover member and the work light device may indicate an assembly error during the manufacture of the construction machine. In addition, the work lamp device and the work light cover member can be assembled into the oil storage tank in advance and assembled on the oil storage tank, and then mounted on the body frame, so that productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a hydraulic excavator showing one embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a sectional view of a main part of FIG. 2;

FIG. 4 is a front view of a main part viewed from a direction A in FIG. 2;

FIG. 5 is a perspective view showing one embodiment of the prior art.

FIG. 6 is a sectional view of a main part showing another embodiment of the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower traveling body 2 Traveling device 3 Body frame 4 Cab 5 Counter weight 6 Working device 7,22 Working light device 9,20 Equipment arrangement space 11,21 Cover member 12,24 Opening 13,28 Battery 14,29 Tool box 23 work light cover member 25 fuel tank 26 hinge member 30 support member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroaki Iwamitsu 3-12-4 Gion, Asa-minami-ku, Hiroshima-shi, Hiroshima Inside Aburaya Heavy Industries, Ltd.

Claims (5)

[Claims] An undercarriage having a traveling device, a body frame connected to an upper portion of the undercarriage, a cab mounted on one of the front left and right sides of the body frame, and In a construction machine having a structure disposed on the side opposite to the cab and the left and right sides, and an equipment arrangement space arranged in front of the structure, a height position of an upper surface of the equipment arrangement space is the same as that of the structure. The work light device is set lower than the height position of the object upper surface, and the work light device is fixed to the front surface of the structure on a line connecting the vicinity of the upper surface front end of the traveling device and the vicinity of the upper surface front end of the equipment arrangement space. A work light mounting device for a construction machine, comprising: 2. The work light mounting device for a construction machine according to claim 1, wherein the structure is an oil storage tank. 3. A construction machine comprising: a body frame; a cab disposed on one side in front of the body frame; and an oil storage tank disposed on the body frame on a side opposite to the cab on the left and right sides. A work light mounting structure for a construction machine, wherein a work light device for forward irradiation is fixed to a front side of the oil storage tank. 4. An equipment arrangement space formed in front of the oil storage tank on the machine body frame, wherein the work light device is arranged above the equipment arrangement space. Item 4. A work light mounting structure for a construction machine according to Item 3. 5. A work light cover member that covers the equipment arrangement space and a work light cover member that covers the periphery of the work light device, wherein the work light cover member is fixed to the structure. The construction light mounting structure for a construction machine according to any one of claims 1 to 4, wherein an opening is provided in a front portion of the work light device.