JP3659468B2 - Construction light mounting structure for construction machinery - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a front illumination work lamp device or the like used for night work of a construction machine such as a hydraulic excavator.
[0002]
[Prior art]
FIG. 5 shows a hydraulic excavator according to an embodiment of the prior art described in JP-A-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 lamp device, and 8 is mounted on the body frame 3. One of the structures, 9 is an equipment arrangement space, and in this embodiment, a cable reel 10 for accommodating the work lamp device by removing it from the body frame 3 is housed and arranged. 11 is a cover member that covers the device arrangement space, and 12 is an opening provided in front of the cover member.
[0003]
In the prior art of FIG. 5, a work lamp device 7 for performing various operations such as excavation work at night or the like is arranged inside the equipment arrangement space 9 and opened in front of the cover member 11 covering the equipment arrangement space 9. The area near the front and lower side of the opening 12 is irradiated. According to this, for example, during excavation work, the soil to be excavated can be irradiated.
[0004]
FIG. 6 is a cross-sectional view of the main part on the right side of the front of a hydraulic excavator (backhoe) according to another embodiment of the prior art described in Japanese Utility Model Laid-Open 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 that supports the work lamp device 7, 16 is a cover member that covers the upper side 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. It is a hinge.
[0005]
According to the prior art of FIG. 6, the entire specification of Japanese Utility Model Laid-Open No. 58-25355 states that “the excavation work lamp device (7) is projected from the opening formed in the rearward inclined portion of the (cover member 16)”. It is attached to the battery cover (16) and is configured to be able to irradiate the work light device (7) downward. The structure is only unclear, but the structure shown in FIG. 6 is seen. As long as the structure is fixed to the structure 8 arranged and mounted on the body frame 3 via the support member 15, it is assumed.
[0006]
[Problems to be solved by the invention]
According to the prior art shown in FIG. 5, the work lamp device 7 is arranged inside the equipment arrangement space 9. Usually, a battery, a tool box, and the like are arranged in the equipment arrangement space 9 as shown in FIG. 6, but the work lamp device 7 is placed in the equipment arrangement space 9 as shown in FIG. When the devices are arranged, the device arrangement space 9 is narrowed, and not only the device arrangement layout is restricted, but it is also difficult to arrange the devices with a relatively small hydraulic excavator. In addition, since the work lamp device 7 is arranged at a low position, earth and sand wound up by the traveling device 2 is applied to the work lamp device 7 and becomes dirty, so that a sufficient amount of light cannot be obtained, and further, pebbles and the like are generated by the traveling device. When it is wound up by 2, the lens of the work lamp device 7 may be damaged. In addition, since the work lamp device 7 is disposed at a low position, there is a problem that the distance between the work lamp device 7 and the ground is close, and the irradiation range is narrowed.
[0007]
According to the prior art shown in FIG. 6, the work lamp device 7 is mounted on the upper side as compared with the case of FIG. 5. Since the work lamp device 7 does not affect the space in which the tool box 14) is mounted, a sufficient space can be obtained and the degree of freedom in equipment layout is also increased.
[0008]
However, according to the configuration of FIG. 6, the work lamp device 7 is arranged at a high place, so that when the vibration of the hydraulic excavator is applied, the amplitude tends to be larger than that at the low place, There is a possibility that the irradiation range by the work lamp device 7 may be shaken to deteriorate visibility and workability.
[0009]
Further, since the work lamp device 7 is attached to the structure 8 behind the equipment arrangement space 9, the irradiation light of the work lamp device 7 is blocked by the equipment arrangement space 9 or the traveling device 2 (not shown), The vicinity cannot be irradiated. In FIG. 6, the work lamp device 7 is positioned forward by fixing it to the structure 8 on the body frame 3 via a relatively long support member 15. Likely to happen.
[0010]
Further, in the configuration of FIG. 6, the cover member 16 is enlarged, and the battery 13 and the work lamp device 7 are included, for example, when the battery 13 is maintained or when the work lamp device 7 is maintained. The covering large cover member 16 needs to be opened, and workability is poor.
[0011]
[Means for Solving the Problems]
A lower traveling body having a traveling device; a body frame coupled to an upper portion of the lower traveling body; a cab mounted on one side of the front left and right sides of the body frame; and the left and right opposite to the cab on the body frame. In the construction machine, comprising: an oil storage tank disposed laterally; an equipment arrangement space disposed in front of the oil storage tank; and an openable / closable cover member that covers an upper portion of the equipment arrangement space. The height placement of the upper surface of the arrangement space is set lower than the height position of the upper surface of the oil storage tank, and the work lamp device connects the vicinity of the upper front end of the traveling device and the vicinity of the upper front end of the equipment arrangement space. A hinge member which is fixed in proximity to the front surface of the oil storage tank above the device arrangement space on the line and rotates the cover member in the vertical direction. From the front end face was set forward.
[0012]
According to this, since the work lamp device is not arranged in the equipment arrangement space, 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 lamp device is located at a high place and behind the front end of the equipment arrangement space, the irradiation range of the work lamp device is widened, the workability is improved in excavation work, etc. It is possible to prevent the work lamp device from being soiled by the rolled up earth and sand or the lens of the work lamp device from being damaged by pebbles rolled up by the traveling device. Furthermore, since the work lamp device is arranged on the line connecting the vicinity of the top front end of the traveling device and the vicinity of the top front end of the device arrangement space, the light emitted from the work lamp blocked by the traveling device and the device arrangement space is reduced. It is possible to improve workability in excavation work, etc., increase the height of the structure more than necessary, or arrange the work lamp device above the upper surface of the oil storage tank that is a structure on the fuselage frame. It can be avoided as much as possible. In addition, since the work lamp device is attached to the front of the oil storage tank arranged behind the equipment arrangement space, the work lamp device can be firmly fixed without providing a special support member on the cover member that covers the work lamp device. , Productivity can be improved.
[0013]
In addition, since the oil such as hydraulic oil or fuel filled in the oil storage tank absorbs the vibration caused by the excavator and the work, for example, and exhibits a damping effect, the vibration of the oil storage tank converges early. Thus, it becomes possible to suppress the vibration of the work lamp device and to prevent the irradiation range of light from the work lamp device from shaking.
[0014]
In addition, since a cover member that covers the device arrangement space is provided, only the upper part of the device height space can be opened as necessary, and the cover member can be reduced in size so that the opening / closing operation is easy and the maintainability can be improved. .
[0015]
And a work light cover member that covers the periphery of the work light device. The work light cover member is fixed to the oil storage tank, and an opening is provided in a front portion of the work light device. For example, it is possible to open only the work lamp device, and since this cover member can be downsized, the opening / closing operation is easy, the maintainability can be improved, and the work lamp device is exposed when it is unnecessary. Therefore, for example, when taking out the tools in the equipment arrangement space, it is possible to prevent the irradiation angle from deviating by touching the work lamp device. In addition, since the work lamp cover member is fixed to the oil storage tank to which the work lamp device is attached, the relative position between the opening provided in the cover member and the work lamp device is an assembly error when manufacturing the construction machine, etc. In addition, the work light device and work light cover member can be assembled in advance in the oil storage tank and assembled into the assembly frame, and then mounted on the machine frame, so that productivity can be improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. Constituent elements that are the same as those in the prior art are assigned the same reference numerals. FIG. 1 is a view showing an embodiment of a hydraulic excavator to which the present invention is applied. In the figure, 20 is a device arrangement space, 21 is a cover member that covers the device arrangement 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, and 25 is an airframe. It is one oil storage tank of the structure on the frame 3, which is a fuel tank in this embodiment. FIG. 2 is an enlarged view of a main part of FIG. 3 is a cross-sectional view of the 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 lamp device 22 to the fuel tank 8. FIG. 4 is a front view of the main part when FIG. 2 is viewed from the direction A, in which 31 is an opening / closing lever for opening and closing the cover member 21.
[0017]
Next, based on FIGS. 1-4, the structure of this embodiment is demonstrated. The hydraulic excavator shown in the present embodiment is configured to be able to travel by a crawler type traveling device 2 provided on both the left and right sides of the lower traveling body 1 and to be connected to the lower traveling body 1 so as to be turnable. The working device 6 is connected to the fuselage frame 3 so as to be swingable in the vertical direction. On the fuselage frame 3, the cab 4 for the cab, the fuel tank 25, other hydraulic oil tanks (not shown), the engine, and various hydraulic devices. Etc., and a counterweight 5 is connected to the rear end thereof. The work device 6 is configured by sequentially connecting work tools such as a boom, an arm, and a bucket (not shown) so as to freely rotate. For example, soil excavation work can be performed using a bucket attached to the tip of the work device 6. it can.
[0018]
The excavator is also used for night work and underground work, so it is equipped with lighting. Although there are some lighting installation positions that are fixed to the working device 6 or the cab 4, in order to obtain a sufficient irradiation range and light quantity, the fuel tank 25 or the like mounted on the side opposite to the cab 4 is used. A work light device for illumination is also arranged in front.
[0019]
According to the present embodiment, the device arrangement space 20 is formed in front of the fuel tank 25, and the cover member 21 is attached so as to cover the device arrangement space 20. The cover member 21 is pivotally supported by a hinge member 26 so as to be pivotable in the vertical direction. By lifting the lever member 31 upward, the device arrangement space can be opened.
[0020]
A battery 28 and a tool box 29 are mounted in the device arrangement space 20, and maintenance of the battery 28 and removal of the tool box can be performed by opening the cover member 21 as necessary.
[0021]
The device arrangement space 20 is set to be approximately half the height of the fuel tank 25 arranged behind it. According to this, the upper surface of the cover member 21 is set to the upper part of the airframe (the upper surface of the fuel tank 25). Can be used as a step to go up.
[0022]
A work lamp device 22 is fixed to the front surface of the fuel tank 25 above the upper surface of the equipment arrangement space 20 via a support member 30. The work lamp device 22 is mounted on 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. In this case, it is not necessary to be completely on the line, and it is ideal to place it slightly above the line. However, if the position is too close to the upper surface of the fuel tank 25, the work lamp device 22 protrudes above the upper surface of the fuel tank 25. In addition, it is desirable that the fuel tank 25 is disposed almost on the line because it becomes an obstacle when the fuel tank 25 is moved up.
[0023]
The work lamp device 22 is adjustable in 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.
[0024]
Next, the operation of the present embodiment will be described with reference to FIGS. When the excavator performs excavation work at night, for example, it is necessary to irradiate the ground in a range where excavation is to be performed with the work lamp device. At this time, the work lamp device 22 is arranged near the line connecting the vicinity of the upper 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 (slightly upward). It is possible to irradiate the range indicated by α. Thereby, it becomes possible to illuminate the range indicated by W on the ground without being blocked by the cover member or the traveling device. In addition, since the work lamp device 22 is arranged at a high place, the range indicated by W can be irradiated to the vicinity of the front end of the traveling device 2 and is irradiated from a position away from the ground. It becomes wide. In addition, what is shown by a broken line and an angle α ′ in FIG. 1 is an irradiation range when the work lamp device is arranged at the position shown in FIG. 5 of the prior art, and is indicated by W ′ on the ground according to this. The range is illuminated and the vicinity of the traveling device 2 is not illuminated. That is, according to the present invention, it is possible to irradiate the vicinity of the traveling device 2, and therefore, when excavating the vicinity of the traveling device 2 or during traveling, the workability is higher than that of the prior art shown in FIG. Get higher.
[0025]
In addition, the hydraulic excavator repeatedly moves forward, stops, and reverses during work, and is often used particularly on rough roads. Therefore, earth, sand, pebbles, and the like are often rolled up by the rotation of the traveling device 2. In particular, when the vehicle is reversely moved (if the airframe is turned 180 degrees, it moves forward), earth and sand and pebbles that have been scraped up by ridges formed on the treads of the footwear (not shown) of the traveling device 2 are the work light devices. However, according to the present embodiment, the work lamp device 22 is arranged at a high place and slightly behind it, so that the work lamp device 22 is contacted with the lens surface. There is no worry about getting dirty or damaged.
[0026]
According to the present embodiment, the work lamp device 22 is fixed in proximity to the fuel tank 25 via the small support member 30. Although the fuel tank 25 is filled with fuel, even if the hydraulic excavator travels or performs various operations, the fuel tank 25 vibrates quickly due to the liquid (fuel) inside even if vibrations occur in the airframe. Is obtained. Since the work lamp device 22 is fixed to the fuel tank 25 and uses the vibration damping effect of the fuel tank 25, the vibration of the irradiation light due to vibration can be suppressed at an early stage. It is not dazzled by the shaking of the irradiated light or the visibility is not deteriorated. According to the present embodiment, the work lamp device 22 is fixed to the fuel tank 25. However, in order to obtain this vibration damping effect, the work lamp device 22 is not necessarily a fuel tank. It may be a hydraulic oil tank that is arranged and mounted.
[0027]
In addition, since the work lamp device 22 is covered with the work lamp cover member 23, the electrical wiring to the work lamp device 22 can be protected, and the appearance can be maintained. Since the work lamp cover member 23 is formed separately from the cover component 21 that covers the device arrangement space 20 so as to be freely opened and closed, the cover member does not increase in size. For example, when taking out the tool box 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 lamp device 22 and the irradiation angle changes.
[0028]
Next, when the work lamp apparatus needs to be maintained, only the work lamp cover member may be removed to open the periphery of the work lamp apparatus 22. Since the work lamp cover member is not frequently opened, the work lamp cover member may be detachably fixed with, for example, a bolt or the like. Since the work lamp cover member 23 is fixed to the fuel tank 25, when the hydraulic excavator is manufactured, the work lamp device and the work lamp cover member 23 are fixed to the fuel tank 25 in advance and assembled. It can be mounted on the fuselage frame 3. According to this, as well as improving the efficiency of the assembly process, in order to assemble the work lamp device 22 and the work lamp cover member 23 to the same structure, the work lamp device 22 and the work lamp cover member 23 Assembling accuracy such as the clearance and the positional relationship between the opening portion opened in the work lamp cover member and the work lamp device 22 can be made high.
[0029]
【The invention's effect】
A lower traveling body having a traveling device; a body frame coupled to an upper portion of the lower traveling body; a cab mounted on one side of the front left and right sides of the body frame; and the left and right opposite to the cab on the body frame. In the construction machine, comprising: an oil storage tank disposed laterally; an equipment arrangement space disposed in front of the oil storage tank; and an openable / closable cover member that covers an upper portion of the equipment arrangement space. The height placement of the upper surface of the arrangement space is set lower than the height position of the upper surface of the oil storage tank, and the work lamp device connects the vicinity of the upper front end of the traveling device and the vicinity of the upper front end of the equipment arrangement space. A hinge member which is fixed in proximity to the front surface of the oil storage tank above the device arrangement space on the line and rotates the cover member in the vertical direction. From the front end face was set forward.
[0030]
According to this, since the work lamp device is not arranged in the equipment arrangement space, 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 lamp device is located at a high place and behind the front end of the equipment arrangement space, the irradiation range of the work lamp device is widened, the workability is improved in excavation work, etc. It is possible to prevent the work lamp device from being soiled by the rolled up earth and sand or the lens of the work lamp device from being damaged by pebbles rolled up by the traveling device. Furthermore, since the work lamp device is arranged on the line connecting the vicinity of the top front end of the traveling device and the vicinity of the top front end of the device arrangement space, the light emitted from the work lamp blocked by the traveling device and the device arrangement space is reduced. It is possible to improve workability in excavation work, etc., increase the height of the structure more than necessary, or arrange the work lamp device above the upper surface of the oil storage tank that is a structure on the fuselage frame. It can be avoided as much as possible. In addition, since the work lamp device is attached to the front of the oil storage tank arranged behind the equipment arrangement space, the work lamp device can be firmly fixed without providing a special support member on the cover member covering the work lamp device. , Productivity can be improved.
[0031]
In addition, since the oil such as hydraulic oil or fuel filled in the oil storage tank absorbs the vibration caused by the excavator and the work, for example, and exhibits a damping effect, the vibration of the oil storage tank converges early. Thus, it becomes possible to suppress the vibration of the work lamp device and to prevent the irradiation range of light from the work lamp device from shaking.
[0032]
In addition, since a cover member that covers the device arrangement space is provided, only the upper part of the device height space can be opened as necessary, and the cover member can be reduced in size so that the opening / closing operation is easy and the maintainability can be improved. .
[0033]
And a work light cover member that covers the periphery of the work light device. The work light cover member is fixed to the oil storage tank, and an opening is provided in a front portion of the work light device. For example, it is possible to open only the work lamp device, and since this cover member can be downsized, the opening / closing operation is easy, the maintainability can be improved, and the work lamp device is exposed when it is unnecessary. Therefore, for example, when taking out the tools in the equipment arrangement space, it is possible to prevent the irradiation angle from deviating by touching the work lamp device. In addition, since the work lamp cover member is fixed to the oil storage tank to which the work lamp device is attached, the relative position between the opening provided in the cover member and the work lamp device is an assembly error when manufacturing the construction machine, etc. In addition, the work light device and work light cover member can be assembled in advance in the oil storage tank and assembled into the assembly frame, 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 an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of FIG.
3 is a cross-sectional view of the main part of FIG. 2;
4 is a front view of the main part as viewed from the direction A in FIG. 2;
FIG. 5 is a perspective view showing an embodiment of the prior art.
FIG. 6 is a cross-sectional view of an essential part showing another embodiment of the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lower traveling body 2 Traveling apparatus 3 Airframe frame 4 Cab 5 Counterweight 6 Working device 7,22 Work lamp device 9,20 Equipment arrangement space 11,21 Cover member 12,24 Opening part 13,28 Battery 14,29 Tool box 23 Work light cover member 25 Fuel tank 26 Hinge member 30 Support member

Claims (2)

A lower traveling body having a traveling device; a body frame coupled to an upper portion of the lower traveling body; a cab mounted on one side of the front left and right sides of the body frame; and the left and right opposite to the cab on the body frame. In a construction machine having an oil storage tank disposed on a lateral side, and an equipment arrangement space disposed in front of the oil storage tank,
The height position of the upper surface of the equipment arrangement space is set lower than the height position of the upper surface of the oil storage tank ,
The work lamp device is fixed close to the front surface of the oil storage tank above the device arrangement space on the 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 device arrangement space. A construction light mounting structure for construction machinery. A cover member that covers the equipment arrangement space; and a work light cover member that covers the periphery of the work light device; the work light cover member is fixed to the oil storage tank; and 2. The work lamp mounting structure for a construction machine according to claim 1, wherein an opening is provided in the front portion .

Images