Excavator

Abstract

To provide an excavator capable of preventing heat from the engine from affecting the supply module.SOLUTION: An excavator in an embodiment includes: a boom; an upper revolving body that supports the boom; a storage box provided to the upper revolving body; a guide member capable of accommodating a liquid storage container that is placed inside the storage box; and a hose wound around the guide member.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a shovel. [Background technology]

[0002] In addition to a cabin for an operator, an excavator is equipped on an upper rotating body with an engine, an exhaust gas treatment device, a fuel tank, etc. Furthermore, since an excavator is used in a variety of environments, a storage box (e.g., a tool box) is installed for performing maintenance of the excavator, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP2015-055054A Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology described in D1, when storing a hose reel in a storage box, a grease storage container is placed in the space above the upper floor plate, and the space above and below the upper floor plate are used as spaces for storing the hose reel. In this way, in the technology described in D1, a large space is provided in the vertical direction to store the hose reel.

[0005] The size of a storage box is limited due to the size of the excavator on which the storage box is mounted, so there is a limit to what can be stored in the box.

[0006] One aspect of the present invention provides a technique for improving the storage efficiency in a storage box. [Means for solving the problem]

[0007] A shovel according to one aspect of the present invention includes a boom, an upper rotating body supporting the boom, a storage box provided on the upper rotating body, a guide member installed inside the storage box and capable of receiving a liquid storage container, and a hose arranged in a wound state around an outer periphery of the guide member; a support portion that supports the hose from the outside in a wound state; Equipped with. Effect of the Invention

[0008] According to one aspect of the present invention, the storage efficiency within the storage box is improved. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a side view of a shovel according to a first embodiment. [Diagram 2] FIG. 2 is a top view that diagrammatically illustrates an upper rotating body of the excavator in FIG. [Diagram 3] FIG. 3 is a schematic diagram showing an example of the configuration of the exhaust gas treatment device according to the first embodiment. [Figure 4] FIG. 4 is a partially enlarged perspective view showing the vicinity of the installation position of the lifting equipment according to the first embodiment. [Diagram 5] FIG. 5 is a perspective view showing the inside of the tool box according to the first embodiment. [Figure 6] FIG. 6 is a top view showing the inside of the tool box according to the first embodiment. [Figure 7] FIG. 7 is a perspective view showing the shape of the pail fixing bracket according to the first embodiment. [Figure 8] FIG. 8 is a perspective view showing the fuel pump and the pail fixing bracket with a fuel supply hose wound therearound according to the first embodiment. [Figure 9] FIG. 9 is a perspective view showing the inside of a tool box according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Non-limiting exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, in which:

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same or corresponding components are denoted by the same or corresponding reference numerals, and the description may be omitted. In addition, unless otherwise specified, the drawings are not intended to show the relative ratio between members or parts. Therefore, specific dimensions can be determined by those skilled in the art in light of the following non-limiting embodiments.

[0012] Furthermore, the embodiments described below are illustrative rather than limiting the invention, and all of the features and combinations thereof described in the embodiments are not necessarily essential to the invention.

[0013] (First embodiment) Fig. 1 is a side view of a shovel 100 according to a first embodiment. As shown in Fig. 1, the shovel 100 includes a lower traveling structure 1, an upper rotating structure 2, a cabin 3, a boom 4, an arm 5, and a bucket 6.

[0014] The upper rotating body 2 is mounted on the lower traveling body 1 via a rotating mechanism (not shown). The cabin 3 is provided on the front left side of the upper rotating body 2. A driver's seat is provided inside the cabin 3. The boom 4 is rotatably provided in the center of the front part of the upper rotating body 2. The arm 5 is rotatably provided at the tip of the boom 4. The bucket 6 is an example of an end attachment, and is rotatably provided at the tip of the arm 5.

[0015] Fig. 2 is a top view that shows a schematic view of the upper rotating body 2 of the excavator 100 in Fig. 1. As shown in Fig. 2, an engine room 7 is formed in the upper rotating body 2. A diesel engine 8 is installed in the engine room 7. A cooling fan 12 is installed to the left of the diesel engine 8 (the positive side of the Y axis). A heat exchanger unit 13 including a radiator and the like is installed to the left of the cooling fan 12 (the positive side of the Y axis).

[0016] In addition, an exhaust pipe 9 is connected to the diesel engine 8. Downstream of the exhaust pipe 9, an exhaust gas treatment device 10 that purifies nitrogen oxides (hereinafter, referred to as NOx) in the exhaust gas discharged from the diesel engine 8 is installed.

[0017] In this embodiment, the exhaust gas treatment device 10 is a urea selective reduction type NOx treatment device that uses urea water as a reducing agent. The exhaust gas treatment device 10 reduces NOx (nitrogen oxides) in the exhaust gas by injecting urea water upstream of a reduction catalyst (not shown) provided in the exhaust pipe 9, and this reduction reaction is promoted by the reduction catalyst to render the NOx harmless.

[0018] On the right side of the upper rotating body 2 and in front of the engine room 7, a tool box 21, a urea water tank 20, and a fuel tank 19 are arranged in this order from the front (the X-axis positive direction side). The urea water tank 20 is a container for storing urea water. This urea water tank 20 is disposed on the opposite side of the cabin 3 with the boom 4 of the upper rotating body 2 in between.

[0019] A tool box (storage box) 21 is disposed in front of the urea water tank 20 (the extension direction of the boom 4, the positive direction of the X-axis), and a fuel tank 19 is disposed behind the urea water tank 20 (the negative direction of the X-axis). The fuel tank 19 is a tank in which fuel for the diesel engine 8 is stored.

[0020] Incidentally, in the case of construction machinery, for maintenance or the like, a worker may climb onto the house cover 2a (see FIG. 1) of the upper rotating body 2. For this reason, the upper rotating body 2 is provided with a lifting facility 30 (see FIG. 2) for the worker to climb onto the house cover 2a.

[0021] 3 is a schematic diagram showing an example of the configuration of an exhaust gas treatment device 10 according to the first embodiment. In this embodiment, the exhaust gas treatment device 10 purifies exhaust gas discharged from a diesel engine 8. The diesel engine 8 is controlled by an engine control module (hereinafter referred to as "ECM") 60.

[0022] Exhaust gas from a diesel engine 8 passes through a turbocharger 61 and reaches an exhaust pipe 9 downstream thereof, where it is purified by an exhaust gas treatment device 10 and then discharged into the atmosphere.

[0023] Meanwhile, intake air introduced into an intake pipe 64 through an air cleaner 63 passes through a turbocharger 61, an intercooler 65, etc., and is supplied to a diesel engine 8. A diesel particulate filter 66 that collects particulate matter in the exhaust gas, and a selective reduction catalyst 67 that reduces and removes NOx in the exhaust gas are provided in series in the exhaust pipe 9.

[0024] The selective reduction catalyst 67 receives a supply of a liquid reducing agent and continuously reduces and removes NOx in the exhaust gas. In this embodiment, urea water (urea aqueous solution) is used as the liquid reducing agent because of its ease of handling.

[0025] A urea water injector 68 for supplying urea water to the selective reduction catalyst 67 is provided upstream of the selective reduction catalyst 67 in the exhaust pipe 9. The urea water injector 68 is connected to a urea water tank 20 (a tank for liquid reducing agent) via a urea water supply line 69.

[0026] In addition, a urea water supply pump 70 is provided in the urea water supply line 69, and a filter 71 is provided between the urea water tank 20 and the urea water supply pump 70. The urea water stored in the urea water tank 20 is supplied to the urea water injector 68 by the urea water supply pump 70, and is injected from the urea water injector 68 to a position upstream of the selective reduction catalyst 67 in the exhaust pipe 9.

[0027] The urea water injected from the urea water injector 68 is supplied to the selective reduction catalyst 67. The supplied urea water is hydrolyzed in the selective reduction catalyst 67 to generate ammonia. This ammonia reduces NOx contained in the exhaust gas in the selective reduction catalyst 67, thereby purifying the exhaust gas.

[0028] The first NOx sensor 72 is disposed upstream of the urea water injector 68. Moreover, the second NOx sensor 73 is disposed downstream of the selective reduction catalyst 67. The NOx sensors 72, 73 detect the NOx concentration in the exhaust gas at their respective installation positions.

[0029] The urea water tank 20 is provided with a urea water remaining amount sensor 74. The urea water remaining amount sensor 74 detects the amount of urea water remaining in the urea water tank 20.

[0030] The above-mentioned NOx sensors 72, 73, urea water remaining amount sensor 74, urea water injector 68, and urea water supply pump 70 are connected to an exhaust gas controller 75. Based on the NOx concentrations detected by the NOx sensors 72, 73, the exhaust gas controller 75 controls the injection amount so that an appropriate amount of urea water is injected by the urea water injector 68 and the urea water supply pump 70.

[0031] Further, the exhaust gas controller 75 calculates the ratio of the remaining amount of urea water to the total volume of the urea water tank 20 based on the remaining amount of urea water output from the urea water remaining amount sensor 74. In this embodiment, the ratio of the remaining amount of urea water to the total volume of the urea water tank 20 is referred to as the urea water remaining amount ratio. For example, a urea water remaining amount ratio of 50% indicates that half the capacity of the urea water tank 20 of the urea water remains in the urea water tank 20.

[0032] The exhaust gas controller 75 is connected by a communication means to the ECM 60 which controls the diesel engine 8. In addition, the ECM 60 is connected to a shovel controller 76 by a communication means.

[0033] The exhaust gas controller 75 is configured to be able to share various information about the exhaust gas processing device 10 with the shovel controller 76. Each of the ECM 60, the exhaust gas controller 75, and the shovel controller 76 includes a CPU, a RAM, a ROM, an input / output port, a storage device, and the like.

[0034] In addition, a monitor 77 (display device) is connected to the shovel controller 76. The monitor 77 displays warnings, operating conditions, and the like.

[0035] The exhaust gas treatment device 10 also has an antifreeze mechanism that prevents the urea water tank 20 and the urea water supply line 69 from freezing. In this embodiment, the antifreeze mechanism utilizes engine cooling water for the diesel engine 8 that passes through the piping 80. Specifically, the engine cooling water immediately after cooling the diesel engine 8 passes through the first portion 80a of the piping 80 while maintaining a relatively high temperature and reaches the second portion 80b. The second portion 80b is a part of the piping 80 that contacts the outer surface of the urea water tank 20. When the engine cooling water flows through the second portion 80b, it supplies heat to the urea water tank 20 and the urea water therein. Thereafter, when the engine cooling water flows through the third portion 80c of the piping 80 that is installed along the urea water supply line 69, it supplies heat to the urea water supply line 69 and the urea water therein. After that, the engine cooling water that has finished supplying heat and has a relatively low temperature passes through the fourth portion 80d of the piping 80 and reaches the heat exchanger unit 13 (see FIG. 2). In this way, the anti-freeze mechanism utilizes the engine coolant to supply heat to the urea water tank 20 and the urea water supply line 69, thereby preventing the urea water tank 20 and the urea water supply line 69 from freezing.

[0036] 4 is a partially enlarged perspective view showing the vicinity of the installation position of the lifting equipment 30. The lifting equipment 30 has a first lifting section 30A and a second lifting section 30B. The second lifting section 30B is located at the lowest level of the lifting equipment 30. The second lifting section 30B is made of metal and is fixed to the revolving frame 14. The second lifting section 30B protrudes forward (in the positive direction of the X-axis) from the front end of the revolving frame 14.

[0037] The first lifting section 30A functions as a step for an operator to ascend and descend, and also functions as a cover for covering the upper part of the urea water tank 20, and as a part of the tool box 21. In addition, the first lifting section 30A is fixed to the revolving frame 14, the fuel tank 19, etc., as described below. In addition, the fuel tank 19 is firmly fixed to the revolving frame 14.

[0038] The middle riser portion 49 is disposed between the lower step portion 44 and the upper step portion 45. The middle riser portion 49 is configured as a door that can be opened and closed relative to the outer step portion 40 and the upper step portion 45. In this embodiment, the door is configured to open sideways.

[0039] The middle riser portion 49 is disposed in a position facing a liquid supply port (not shown) of the urea water tank 20. Therefore, when the middle riser portion 49 is opened, the liquid supply port of the urea water tank 20 is exposed to the outside.

[0040] The lifting equipment 30 according to this embodiment is configured such that the first lifting section 30A is provided with two tread sections 44, 45, and a total of three tread sections including the second lifting section 30B are provided. Note that if the height of the fuel tank 19 is lower by about 100 mm to 200 mm, the tread section 45 does not need to be provided. Also, the number of tread sections provided in the first lifting section 30A is not limited to two.

[0041] In addition, first to third anti-slip devices 36, 37, 38 are provided on each step portion 44, 45 and top plate portion 19a of fuel tank 19 to prevent an operator from slipping when ascending or descending lifting equipment 30. First anti-slip device 36 is provided on lower step portion 44, and third anti-slip device 38 is provided on top plate portion 19a.

[0042] As shown in Fig. 4, a pair of left and right support brackets 17 (only the left one is shown) for mounting the booms are erected in front of the revolving frame 14 of the upper revolving body 2. A boom foot pin (not shown) that supports the boom 4 is inserted into and removed from a hole 172 formed in the support bracket 17. In addition, a fuel tank 19, a urea water tank 20, a tool box 21, a lifting facility 30, etc. are arranged on the side of the support bracket 17.

[0043] In addition, outside the position where the lifting equipment 30 of the upper rotating body 2 is installed, There is a handrail 24 to hold on to when ascending or descending the stairs.

[0044] The lower riser portion 48 is disposed below the lower tread portion 44. The lower riser portion 48, the outer plate portion 40, the inner plate portion 41, and the lower tread portion 44 form a space inside when the first lifting section 30A is fixed to the revolving frame 14 and the fuel tank 19. With the lower tread portion 44 functioning as a lid, the space functions as a storage section (storage box) that is protected from wind and rain. This storage section is also referred to as a tool box 21 because it is formed so that tools can be stored therein. The tool box 21 stores tools and the like required for maintenance, for example.

[0045] Since the tool box 21 is provided on the lifting equipment 30, it is difficult to make the capacity of the tool box larger than a predetermined capacity so that a worker can ascend and descend the tool box. On the other hand, the tool box 21 is required to store a plurality of tools and the like required for maintenance.

[0046] 2. Description of the Related Art Conventionally, examples of items stored in a tool box (an example of a storage box) include a storage container for grease for greasing, and a fuel pump for supplying fuel to a fuel tank.

[0047] In conventional excavators, the capacity of the storage box is limited depending on the type, so there are cases where the grease storage container and the hose for the oil supply pump cannot be stored. Therefore, the tool box 21 of this embodiment has the following configuration to realize efficient storage.

[0048] Fig. 5 is a perspective view showing the inside of tool box 21 of this embodiment. Fig. 6 is a top view showing the inside of tool box 21 of this embodiment. As shown in Fig. 6, tool box 21 has a shape in which the length between inner wall 221A and inner wall 221B (length in the X-axis direction inside tool box 21) is shorter than the length between inner wall 221C and inner wall 221D (length in the Y-axis direction inside tool box 21). Note that the shape and size of tool box 21 shown in this embodiment are shown as an example, and other shapes and sizes may be used.

[0049] As shown in Figures 5 and 6, a fuel supply pump 120 is provided inside the tool box 21. The fuel supply pump 120 is connected to a first end 122A of a tank hose 122. A second end (not visible in Figure 6) of the tank hose 122 is connected to the fuel tank 19. In addition, the fuel supply pump 120 is connected to a first end 121A of a fuel supply hose 121. A second end 121B of the fuel supply hose 121 is not particularly connected and is housed in the tool box 21.

[0050] The fuel supply pump 120 sucks up liquid (fuel) from the second end of the fuel supply hose 121, and supplies the sucked up liquid from the first end 121A of the fuel supply hose 121 to the first end 122A of the tank hose 122. Then, the fuel supply pump 120 discharges the liquid supplied from the first end 122A of the tank hose 122 from the second end of the tank hose 122 to the fuel tank 19. In other words, when the second end of the fuel supply hose 121 is inserted into a drum installed outside the excavator 100, the fuel supply pump 120 can supply the fuel stored in the drum to the fuel tank 19.

[0051] In this embodiment, pail fixing bracket 101 (an example of a guide member) is installed in a fixed state to the floor board inside tool box 21. Pail fixing bracket 101 has a cylindrical shape that protrudes vertically (in the Z-axis direction) from the floor board of tool box 21, and the inner diameter of the cylindrical space inside pail fixing bracket 101 is at least larger than the outer diameter of cylindrical pail 110 (an example of a storage container for liquid) to be stored in tool box 21. This enables pail fixing bracket 101 to receive cylindrical pail 110.

[0052] The pail can (an example of a storage container) 110 is a storage container for liquid, semi-solid, or semi-liquid (hereinafter referred to as "liquid, etc."), and in this embodiment, it is a storage container that stores grease for greasing the shovel 100.

[0053] Pail 110 according to this embodiment has a cylindrical shape, and is housed inside bracket 101 for fixing the pail.

[0054] The pail can may be, for example, a steel pail. The size of the pail can may be any size, for example, a size that is predetermined as a "steel pail" in the Japanese Industrial Standards.

[0055] In this embodiment, a pail can storing grease is mounted as an example of a storage container, but the type of liquid stored is not limited to grease and may be other liquids. Also, the pail can according to this embodiment is a storage container for storing liquids and the like, and although a cylindrical shape is described, the shape is not limited to a cylindrical shape and may be, for example, a rectangular parallelepiped shape. In this case, the pail can fixing bracket 101 may have any shape that can receive the storage container and that can wrap the fuel supply hose 121 around it.

[0056] Fuel supply hose 121 (an example of a hose) is arranged in a wound state around the outer periphery of pail fixing bracket 101. The diameter of fuel supply hose 121 is not particularly limited, and is determined according to the capacity of fuel supply pump 120.

[0057] 5, the refueling hose 121 is wound in a single layer around the outer periphery of the pail fixing bracket 101, and is arranged in a state where the refueling hose 121 overlaps in the vertical direction. This makes it possible to prevent an increase in the area that the refueling hose 121 occupies on the bottom surface of the tool box 21. Note that this embodiment shows only one example of how the refueling hose 121 can be wound, and other winding methods, such as two-layer winding, may also be used.

[0058] Furthermore, tool box 21 may be provided with a space structure for guiding installation of fuel supply hose 121, but a pail (e.g., pail 110) occupies a relatively large area and there is a possibility that there is no space for installation. Therefore, if a gap (dead space) is likely to occur between pail fixing bracket 101 and the wall of tool box 21, it is sufficient if this gap (dead space) can be used for installation of fuel supply hose 121. Therefore, tool box 21 of this embodiment has the following configuration.

[0059] In this embodiment, in order to maintain the state in which the refueling hose 121 is wound around the pail fixing bracket 101, it is preferable to support the refueling hose 121 from the outside. Therefore, in this embodiment, inner walls (one example of a wall portion) 221A, 221B of the tool box 21 and brackets 102A, 102B for fixing the refueling hose provided on the pail fixing bracket 101 are used as support members for supporting the refueling hose 121 from the outside. Note that the inner walls 221A, 221B and brackets 102A, 102B for fixing the refueling hose shown in this embodiment are shown as one example of support members, and other support members may be used. By using the support members, the stability of the wound state of the refueling hose 121 is improved.

[0060] The short side of the tool box 21 extending in the X-axis direction has a length that allows the fuel supply hose 121 to be wound around the outer periphery of the pail fixing bracket 101. In other words, the length of the short side of the tool box 21 is at least longer than the length obtained by adding twice the diameter of the fuel supply hose 121 to the diameter of the pail fixing bracket 101. In addition, the inner walls 221A and 221B extending along the short side of the tool box 21 support the wound fuel supply hose 121 from the outside. For this reason, the length of the short side of the tool box 21 is the length obtained by adding twice the diameter of the fuel supply hose 121 to the diameter of the cylindrical main body of the pail fixing bracket 101, plus a margin (gap) of about several centimeters. Note that the length of the margin (gap) is shown as an example, and it is sufficient if the wound fuel supply hose 121 can be taken out while being supported by the inner walls 221A and 221B. In this embodiment, inner walls 221A, 221B support fuel supply hose 121 from the outside in a wound state, thereby improving the stability of fuel supply hose 121 in a wound state without providing a separate support member.

[0061] Fig. 7 is a perspective view showing one example of the shape of pail-fixing bracket 101. As shown in Fig. 7, main body 101C of pail-fixing bracket 101 is cylindrical. Pail-fixing bracket 101 also has two extension plate portions 101A and 101B extending outward from an end of main body 101C that contacts the bottom surface of tool box 21.

[0062] The extension plate portions 101A and 101B are provided with screw holes 103A and 103B, respectively. In this embodiment, the pail fixing bracket 101 is fixed to the inside of the tool box 21 by fastening fastening members (e.g., screws) to the bottom surface of the tool box 21 through the screw holes 103A and 103B.

[0063] A first fuel supply hose fixing bracket 102A and a second fuel supply hose fixing bracket 102B are provided on the outer periphery of a main body 101C of the pail can fixing bracket 101.

[0064] The first fuel supply hose fixing bracket 102A and the second fuel supply hose fixing bracket 102B are connected to the main body portion 101C by welding.

[0065] The first refueling hose fixing bracket 102A (an example of a support member) extends outward in a substantially horizontal direction from a welded portion on the outside of the main body portion 101C, has a folded portion 1021A at a position where it extends a length longer than the diameter of the refueling hose 121, and extends vertically upward from the folded portion 1021A. The length of the portion extending vertically upward from the folded portion 1021A is at least twice the diameter of the refueling hose 121. In this way, the first refueling hose fixing bracket 102A has a shape bent at the folded portion 1021A (L-shape), and is therefore able to support the refueling hose 121 that is wound at least twice vertically upward. The specific length from the welded portion to the folded portion 1021A is the diameter of the refueling hose 121 plus a margin (gap) of several mm to several cm.

[0066] The second refueling hose fixing bracket 102B (an example of a support member) extends outward in a substantially horizontal direction from a welded portion on the outside of the main body portion 101C, has a folded portion 1021B at a position where it extends a length longer than the diameter of the refueling hose 121, and extends vertically upward from the folded portion 1021B. The length of the portion extending vertically upward from the folded portion 1021B is at least twice the diameter of the refueling hose 121. In this way, the second refueling hose fixing bracket 102B has a shape folded at the folded portion 1021B (L-shape), and is therefore capable of supporting the refueling hose 121 wound at least twice vertically upward. The specific length from the welded portion to the folded portion 1021B is the diameter of the refueling hose 121 plus a margin (gap) of several mm to several cm.

[0067] 7, the first refueling hose fixing bracket 102A and the second refueling hose fixing bracket 102B are positioned on opposite sides of the outer periphery of the cylindrical shape of the main body 101C (so that they are spaced apart by approximately 180 degrees from each other with respect to the center point of the cylindrical shape). In other words, when the pail fixing bracket 101 is installed in the tool box 21, the first refueling hose fixing bracket 102A and the second refueling hose fixing bracket 102B are used to support the wound refueling hose 121 in the Y-axis direction. In this embodiment, the first refueling hose fixing bracket 102A and the second refueling hose fixing bracket 102B are directly connected to the pail fixing bracket 101, so that installation in the tool box 21 is easier than when a separate support member is provided.

[0068] Fig. 8 is a perspective view showing fuel supply pump 120 and pail fixing bracket 101 with fuel supply hose 121 wound around it. As shown in Fig. 8, fuel supply pump 120 is fixed to inner wall 221B of tool box 21 by fixing member 120A protruding vertically from bottom surface portion 120B of the fuel supply pump.

[0069] Body 101C of pail fixing bracket 101 of this embodiment has a cylindrical shape capable of receiving cylindrical pail 110. Fuel supply hose 121 is fixed in a state where it is wound twice in the vertical direction in a circular motion along the outer periphery of the cylindrical shape of body 101C. This makes it easy to store fuel supply hose 121.

[0070] 8, the height of the main body 101C of the pail fixing bracket 101 is such that the refueling hose 121 can be wound at least twice. In other words, the refueling hose 121 has a length (e.g., just under 2 m) that can reach from the refueling pump 120 to a drum or the like disposed outside the excavator 100, and the main body 101C has a height that can wrap the entire refueling hose 121 around it. Note that this embodiment does not limit the number of times that the refueling hose 121 is wound around the main body 101C, and the refueling hose 121 may be fixed in a state where it is wound once or three or more times.

[0071] Furthermore, main body 101C of pail fixing bracket 101 has a height such that pail 110 will not come off main body 101C even if it bounces. In other words, the height of main body 101C is set to be higher than the height obtained by subtracting the "height of pail 110" from the "height inside toolbox 21."

[0072] As shown in FIG. 6, the first fuel supply hose fixing bracket 102A and the second fuel supply hose fixing bracket 102B support the wound fuel supply hose 121 from outside in the Y-axis direction (the longitudinal direction of the tool box 21).

[0073] Furthermore, the inner walls 221A and 221B support the coiled fuel supply hose 121 from the outside in the X-axis direction (the short side direction of the tool box 21).

[0074] That is, when the shape of the bottom of tool box 21 is substantially rectangular as in this embodiment, inner walls 221A and 221B support refueling hose 121 in the X-axis direction (short side direction of tool box 21), and first refueling hose fixing bracket 102A and second refueling hose fixing bracket 102B support refueling hose 121 in the Y-axis direction (longitudinal direction of tool box 21). In this way, by combining inner walls 221A and 221B with first refueling hose fixing bracket 102A and second refueling hose fixing bracket 102B as a support portion for refueling hose 121, refueling hose 121 is supported (support portions exist) approximately every 90 degrees, and the wound state of refueling hose 121 can be stably maintained.

[0075] 6, the second refueling hose fixing bracket 102B is provided on the outer periphery of the pail can fixing bracket 101 on the side where the refueling pump 120 and the tank hose 122 are installed. By providing the second refueling hose fixing bracket 102B, the refueling hose 121 is prevented from moving toward the refueling pump 120 and the tank hose 122. This prevents the inside of the tool box 21 from becoming cluttered, improving convenience.

[0076] In the present embodiment, an example has been described in which the inner walls 221A, 221B and the fuel supply hose fixing brackets 102A, 102B are used as the support portion for supporting the fuel supply hose 121 in a wound state. However, this embodiment is not limited to the embodiment in which both the inner walls 221A, 221B and the fuel supply hose fixing brackets 102A, 102B are used, and for example, the fuel supply hose may be supported by only one of the inner walls 221A, 221B and the fuel supply hose fixing brackets 102A, 102B. For example, a fuel supply hose fixing bracket may be provided along the long side of the tool box 21.

[0077] Moreover, the tools stored in the tool box 21 of this embodiment are not limited to those described above, and various tools may be stored in the area vacated by the above-mentioned arrangement. For example, a grease injector (for example, a syringe type) for utilizing the grease stored in the pail can 110 is conceivable as a tool to be stored. Furthermore, the tool box 21 is shown as an example of a storage box, and may be a case other than those described above as long as it can store the fuel supply hose 121, the pail can 110, etc.

[0078] 7, the shape of main body 101C of bracket 101 for fixing a pail is not limited to a cylindrical shape as shown in Fig. 7, but may have a vertical notch in the cylindrical portion, and the shape of the end that comes into contact with the bottom surface of tool box 21 may not be a circle but may be an ellipse, a semicircle, or an arc with a central angle of approximately 270 degrees. For example, an arc with a central angle of approximately 270 degrees supports pail 110 so that it does not shift, and allows for more savings in material for the bracket than a circular shape.

[0079] Second embodiment In the first embodiment, an example has been described in which the shape of the bottom surface of the tool box 21 is substantially rectangular, and the refueling hose 121 is supported by the inner walls 221A and 221B in the X-axis direction (short side direction of the tool box 21) and supported by the first refueling hose fixing bracket 102A and the second refueling hose fixing bracket 102B in the Y-axis direction (longitudinal direction of the tool box 21). However, the first embodiment does not limit the support mode of the refueling hose 121. For example, the refueling hose 121 may be supported by the inner walls in the Y-axis direction (longitudinal direction of the tool box 21). Therefore, in the second embodiment, a case in which the refueling hose 121 is supported by the inner walls also in the Y-axis direction (longitudinal direction of the tool box 21) will be described.

[0080] Fig. 9 is a perspective view showing the inside of a tool box 21 according to the second embodiment. In the example shown in Fig. 9, similarly to the first embodiment, the tool box 21 has a shape in which the length in the Y-axis direction of the inner walls 221A and 221B is longer than the length in the X-axis direction of the inner walls 221C and 221D.

[0081] In the example shown in Fig. 9, pail fixing bracket 201 includes two extension plate portions 101A, 101B (not visible in Fig. 9) and a second fuel filler hose fixing bracket 102B. Pail fixing bracket 201 differs from pail fixing bracket 101 according to the first embodiment in that it does not include first fuel filler hose fixing bracket 102A.

[0082] Compared to bracket 101 for fixing a pail can in the first embodiment, bracket 201 for fixing a pail can according to this embodiment is disposed closer to the positive Y-axis side of tool box 21 (one example of either one of the short sides of tool box 21). The distance between bracket 201 for fixing a pail can and inner wall 221D is at least longer than the diameter of fuel supply hose 121, and is the diameter of fuel supply hose 121 plus a margin (gap) of several mm to several cm. As a result, inner wall 221D on the positive Y-axis side of tool box 21 functions as a support member.

[0083] Therefore, when fuel supply hose 121 is wound around pail fixing bracket 201, inner walls 221A, 221B extending in the Y-axis direction (longitudinal direction) and inner wall 221D, which is one of the two inner walls extending in the X-axis direction (short axis direction) and is located on the side to which pail fixing bracket 201 is moved, can support fuel supply hose 121 from the outside.

[0084] In this embodiment, the fuel supply hose 121 wound around the pail can fixing bracket 201 is supported by the second fuel supply hose fixing bracket 102B and each of the inner walls 221A, 221B, and 221D (examples of wall portions). In other words, the fuel supply hose 121 can be kept stable in the wound state on one of the two inner walls extending in the short direction without providing a fuel supply fixing bracket. This provides the same effects as the first embodiment, and since only one fuel supply fixing bracket is required, the manufacturing cost can be reduced.

[0085] In the above embodiment, a method for supporting the fuel supply hose 121 wound around the pail fixing bracket 201 from the outside in the X-axis direction and the outside in the Y-axis direction has been described, but other methods may be used as long as they can maintain the state of being wound around the pail fixing bracket 201, and the hose may be supported from any direction on the XY plane by any supporting member. For example, the fuel supply hose 121 may be supported by a fuel supply hose fixing bracket extending in an L-shape from the outside in the direction in which the fuel supply pump 120 is located, based on the center point of the cylindrical shape of the pail fixing bracket 201. This makes it possible to prevent the fuel supply hose 121 from moving toward the fuel supply pump 120.

[0086] In the above-described embodiment, an example was described in which the inner wall and the fuel supply hose fixing bracket extending in an L-shape from the pail fixing bracket were used as the support portion, but any support member capable of supporting the fuel supply hose 121 in a rolled up state will do, and for example, the hose may be supported from the outside in the X-axis or Y-axis direction by a fuel supply hose fixing bracket (support member) extending vertically from the bottom surface of the tool box 21.

[0087] In the embodiment described above, the fuel supply hose 121 is stored in the tool box 21 in a state where it is wound around the outer periphery of the pail fixing brackets 101, 201 for storing the pail inside, thereby improving the storage efficiency of the tool box 21.

[0088] Although the embodiment of the injection molding machine according to the present invention has been described above, the present invention is not limited to the above embodiment. Various changes, modifications, substitutions, additions, deletions, and combinations are possible within the scope of the claims. Naturally, these also fall within the technical scope of the present invention. [Explanation of symbols]

[0089] 100 Shovel 1 Undercarriage 2 Upper rotating body 3 Cabin 4. Boom 5 Arm 6 Bucket 8. Diesel engine 9. Exhaust pipe 10 Exhaust gas treatment device 12 Cooling fan 13 Heat exchanger unit 19 Fuel Tank 20. Urea tank 21 Tool box 101 Pail can fixing bracket 102A First fuel supply hose fixing bracket 102B Second fuel supply hose fixing bracket 110 Pail Can 120 Fuel Pump 121 Fuel hose 122 Tank Hose 221A, 221B, 221C, 221D Interior wall

Claims

1. Boom and An upper rotating body supporting the boom; A storage box provided on the upper rotating body; a guide member arranged inside the storage box and capable of receiving a liquid storage container; A hose arranged in a wound state along an outer periphery of the guide member; a support portion that supports the hose from the outside of the wound state; An excavator equipped with:

2. The support portion is an inner wall portion of the storage box. The shovel according to claim 1.

3. The support portion is a support member attached to the outer periphery of the guide member and having a bent shape so as to support the hose from the outside in the wound state. The shovel according to claim 1.

4. The storage box is provided with a fuel supply pump to which the hose is connected, The support member having the bent shape is provided on the outer periphery of the guide member on a side on which the fuel supply pump or a tank hose connecting the fuel supply pump to an external tank is installed. The shovel according to claim 3.

5. The support portion is provided in a plurality of portions, and is a combination of an inner wall portion of the storage box and a support member having a bent shape attached to the outer periphery of the guide member so as to support the hose from the outside in the wound state. The shovel according to claim 1.

6. The shape of the bottom surface of the storage box is substantially rectangular, The guide member is disposed toward one of the two short sides of the storage box, The support portion is one of two wall portions extending in the short side direction of the storage box, the wall portion being located on the side to which the guide member is brought. The shovel according to claim 5.

7. The guide member has a cylindrical shape capable of accommodating the cylindrical storage container, The hose is arranged to be wound around the outer periphery of the cylindrical shape one or more times in a circular motion. A shovel according to any one of claims 1 to 6.

Images