Work equipment

Abstract

To provide a work machine equipped with work lights and warning lights that can prevent light emitted from one source from being blocked by the other, while also suppressing the light emitted from the warning lights from entering the field of vision of the operator seated in the driver's seat. [Solution] The work machine comprises a machine body, a driver's seat mounted on the machine body, a driver's seat protector that protects the driver's seat, a work device provided at the front of the machine body, a warning light that emits light towards the surroundings to draw attention, and a work light that emits light towards the work area. The driver's seat protector has a roof that covers the top of the driver's seat and a front support column that is positioned to the left front or right front of the driver's seat and supports the roof. The work light is attached to the front support column, and the warning light is attached to the front support column above the work light.

Description

Technical Field

[0001] The present invention relates to a working machine such as a backhoe.

Background Art

[0002] Conventionally, working machines disclosed in the following Patent Documents 1 and 2 are known. In the working machine disclosed in Patent Document 1, a work light that illuminates the front of the working machine during work in the evening or at night is attached to the front pillar of the cab. In the working machine disclosed in Patent Document 2, a warning light (rotating light) that irradiates light toward the surroundings during work to attract attention is attached to the roof of the cab.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] The work light disclosed in Patent Document 1 and the warning light disclosed in Patent Document 2 are arranged at different positions from each other. If the warning light is arranged in the vicinity of the work light, there is a risk that the light irradiated from either the work light or the warning light will be blocked by the other, or that the irradiation light from the warning light will enter the field of vision of the operator sitting in the driver's seat and cause glare.

[0005] ​​​​

[0006] An implement according to one embodiment of the present invention comprises a machine body, a driver's seat mounted on the machine body, a driver's seat protector that protects the driver's seat, a work device provided at the front of the machine body, a warning light that emits light towards the surroundings to draw attention, and a work light that emits light towards the work area, wherein the driver's seat protector has a roof that covers the top of the driver's seat and a front support column that is positioned to the left front or right front of the driver's seat and supports the roof, the work light is attached to the front support column, and the warning light is attached to the front support column above the work light. [Effects of the Invention]

[0007] According to the work machine of the present invention, in a work machine equipped with a work light and a warning light, it is possible to prevent light emitted from one source from being blocked by the other, while suppressing the light emitted from the warning light from entering the field of vision of the operator seated in the driver's seat. [Brief explanation of the drawing]

[0008] [Figure 1] This is a left side view of the work machine. [Figure 2] This is a right side view of the work machine. [Figure 3] This is a schematic front view of the work machine. [Figure 4] This is a schematic rear view of the work machine. [Figure 5] This is a schematic plan view of the work machine. [Figure 6] This is a perspective view of the work equipment from the left rear. [Figure 7] This is a front view of the upper part of the cabin. [Figure 8] This is a plan view showing the warning light and work light mounted on the right front support column of the cabin. [Figure 9] This is a left side view showing the warning light and work light mounted on the right front support column of the cabin. [Figure 10] This diagram shows a warning light, work light, and bracket. [Figure 11]This diagram shows the mounting structure for warning lights and work lights on a bracket. [Modes for carrying out the invention]

[0009] Preferred embodiments of the present invention will be described below with appropriate reference to the drawings. In this embodiment, a backhoe, which is a slewing work machine, is exemplified as the work machine 1. However, the work machine 1 is not limited to a backhoe.

[0010] Figure 1 is a left side view of the implement 1. Figure 2 is a right side view of the implement 1. Figure 3 is a schematic front view of the implement 1. Figure 4 is a schematic rear view of the implement 1. Figure 5 is a schematic top view of the implement 1. Figure 6 is a perspective view of the implement 1 from the left rear.

[0011] As shown in Figures 1 and 2, the work machine 1 comprises a machine body (turntable) 2, a travel device 3, and a work device 4. Note that the work device 4 is omitted in Figures 3 to 6. The machine body 2 is equipped with a driver's seat 7 in which the operator (driver) sits, and a cabin 8 which is a driver's seat protector that protects the driver's seat 7.

[0012] In the following, the direction towards the front of the operator seated in the operator's seat 7 of the work machine 1 (arrow A1 direction) will be described as the front, and the direction towards the rear of the operator (arrow A2 direction) will be described as the rear. Also, the direction towards the left of the operator (arrow B1 direction) will be described as the left, and the direction towards the right of the operator (arrow B2 direction) will be described as the right. Furthermore, the horizontal direction (left-right direction), which is perpendicular to the front-rear direction K1, will be described as the machine width direction K2.

[0013] The running gear 3 is a crawler-type running gear that supports the machine body 2 so that it can move. The running gear 3 has a left running gear 3L that supports the lower left part of the machine body 2 and a right running gear 3R that supports the lower right part of the machine body 2. In this embodiment, a crawler-type running gear 3 is used, but the running gear 3 is not limited to this, and a wheel-type running gear or the like may also be used. A dozer device 9 is mounted on the front of the running gear 3.

[0014] As shown in FIG. 1, the machine body 2 is supported so as to be rotatable about a swivel axis X1 which is an axis extending vertically via a swivel bearing 10 on a traveling device 3. As shown in FIGS. 3 to 5, the cab 8 is mounted at a position on the left side and toward the front of the machine body 2.

[0015] The cab 8 has a roof 11 that covers above the driver's seat 7, a front support column 12 that supports the front part of the roof 11, and a rear support column 13 that supports the rear part of the roof 11. The front support column 12 has a left front support column 12L disposed at the left front of the driver's seat 7 and a right front support column 12R disposed at the right front of the driver's seat 7. The rear support column 13 has a left rear support column 13L disposed at the left rear of the driver's seat 7 and a right rear support column 13R disposed at the right rear of the driver's seat 7.

[0016] A front panel having a front window 8a is provided at the front part of the cab 8. A front panel having a rear window 8b is provided at the front part of the cab 8. A door panel having a left side window 8c is provided at the left side part of the cab 8. A side panel having a right side window 8d is provided at the right side part of the cab 8. Each window is made of a light-transmissive material (such as glass).

[0017] A support bracket 14 and a swing bracket 15 for supporting a working device 4 are provided at the front part of the machine body 2. The support bracket 14 is provided so as to project forward from the machine body 2. The swing bracket 15 is attached to the front part of the support bracket 14 so as to be swingable about a vertical axis (an axis extending in the vertical direction).

[0018] As shown in Figures 1 and 2, the working device 4 is mounted on the front of the machine body 2. The working device 4 has a boom 16, an arm 17, and a bucket 18. The base of the boom 16 is pivotally attached to the upper part of the swing bracket 15 so as to be rotatable around a horizontal axis (an axis extending in the machine body width direction K2). The arm 17 is pivotally attached to the tip side of the boom 16 so as to be rotatable around a horizontal axis. The bucket 18 is provided on the tip side of the arm 17 so as to be able to perform scooping and dumping operations.

[0019] The work device 4 can be fitted with other work tools (hydraulic attachments) that can be driven by a hydraulic actuator, either in place of or in addition to the bucket 18. Examples of other work tools include hydraulic breakers, hydraulic crushers, angle brooms, earth augers, pallet forks, sweepers, mowers, snow blowers, and the like.

[0020] The swing bracket 15 is made swingable by the extension and retraction of the swing cylinder C1. The boom 16 is made swingable by the extension and retraction of the boom cylinder C2. The arm 17 is made swingable by the extension and retraction of the arm cylinder C3. The bucket 18 is made capable of scooping and dumping operations by the extension and retraction of the bucket cylinder C4. The swing cylinder C1, boom cylinder C2, arm cylinder C3, and bucket cylinder C4 are composed of hydraulic cylinders (hydraulic actuators).

[0021] As shown in Figures 1, 2, 4, and 6, the work machine 1 is equipped with a bonnet 30 located at the rear of the machine body 2. The bonnet 30 covers the engine chamber 21 (see Figure 1) where the prime mover 20 is located. The bonnet 30 includes a rear bonnet 31, a left-side bonnet 32, and a right-side bonnet 33. The rear bonnet 31 covers the rear of the engine chamber 21. The left-side bonnet 32 ​​covers the left side of the engine chamber 21. The right-side bonnet 33 covers the right side of the engine chamber 21.

[0022] As shown in Figure 1, the prime mover 20 is located at the rear of the aircraft body 2. The prime mover 20 is located in a prime mover chamber 21 provided at the rear of the aircraft body 2. The prime mover 20 is a diesel engine. The prime mover 20 may also be a gasoline engine or an electric motor, or it may be a hybrid type having both an engine and an electric motor.

[0023] As shown in Figures 2 to 6, the work machine 1 is equipped with a warning light 130 and a work light 140. The warning light 130 and the work light 140 are mounted on the front of the cabin 8.

[0024] The warning light 130 is a lighting device (light) that illuminates the surroundings with light to draw attention when the work device 4 is working. The warning light 130 draws attention to people around the work machine 1 by illuminating the surroundings with light. The warning light 130 lights up when the work machine 1 is working in crane mode. Crane mode is a mode selected when the work machine 1 is performing crane work, and is an operating mode in which the object to be lifted by a hook attached to the bucket 18 is used to perform crane work.

[0025] The warning light 130 does not emit light in one direction, but rather emits light in a circumferential direction. In this embodiment, the warning light 130 is a rotating light that rotates to emit light in a circumferential direction. The warning light 130 is formed in a substantially cylindrical shape. The warning light 130 rotates its light within a range of 360° around its vertical axis and emits light in a horizontal direction. Examples of rotating warning lights 130 include those in which the light source itself rotates, those in which a reflector (mirror) rotates around a fixed light source to rotate and emit light, and those in which multiple light sources are illuminated in sequence to give the appearance of a rotating light source. However, the warning light 130 is not limited to a rotating light; for example, it may be a flashing light that flashes at a predetermined period.

[0026] The work light 140 is a lighting device (light) for illuminating the work area of ​​the work device 4. The work light 140 does not illuminate in a 360° range in all directions, but rather illuminates in one direction. In other words, the work light 140 is a lighting device that emits directional light. The work light 140 illuminates in the front and downward direction (including the left front and right front and downward directions).

[0027] As shown in Figures 2, 3, 5, and 7, the work light 140 is mounted on the front support 12 of the cabin 8. The warning light 130 is mounted on the front support 12 of the cabin 8 above the work light 140. In this embodiment, the work light 140 and the warning light 130 are mounted on the right front support 12R of the cabin 8.

[0028] In this way, by attaching the work light 140 and the warning light 130 to the front support column 12 of the cabin 8, when working with the work device 4 located at the front of the work machine 1, the work light 140 can illuminate the work area, and the warning light 130 can draw the attention of people in front of the work machine 1 (near the work device 4).

[0029] The work light 140 and warning light 130 are mounted on the upper part of the front support 12 (right front support 12R) of the cabin 8. The upper end of the warning light 130 is positioned at a height that does not exceed the top surface of the roof 11. Specifically, the upper end of the warning light 130 is positioned at the same height as or approximately the same height as the top surface of the roof 11 (lower than the top surface of the roof 11).

[0030] As shown in Figures 3 and 7, the work light 140 is positioned below the warning light 130 and above the midpoint of the front support column 12 (right front support column 12R) in the vertical direction. The vertical position of the warning light 130 and the vertical position of the work light 140 do not overlap.

[0031] By installing the work light 140 and the warning light 130 in the above-described positions, the light from the work light 140 and the warning light 130 can be made to reach far distances, and the light from the warning light 130 can be prevented from reaching areas far from the work area (locations where warning is not required), such as the rear of the cabin 8, thereby preventing light pollution.

[0032] Furthermore, by arranging the warning light 130 and the work light 140 side by side vertically on the same front support column 12 (right front support column 12R), it is possible to prevent light emitted from one from being blocked by the other. For example, if the warning light 130 and the work light 140 are arranged side by side horizontally or front to back, light emitted from one will be blocked by the other, resulting in the inconvenience of shadows being cast on the area that should be illuminated. However, by arranging them as in this embodiment, such inconveniences can be prevented.

[0033] As shown in Figure 5, the warning light 130 mounted on the right front support 12R is positioned in a plan view on the extension of the straight line L3 connecting the center 7a of the driver's seat 7 and the right front support 12R. In other words, in a plan view, the right front support 12R is located at a position that coincides with the straight line L3 connecting the center of the warning light 130 and the center 7a of the driver's seat 7. This prevents the light emitted from the warning light 130 from reaching the eyes of the operator seated in the driver's seat 7 and causing glare. In short, by mounting the warning light 130 on the right front support 12R, it is possible to prevent the light emitted from the warning light 130 from reaching the eyes of the operator seated in the driver's seat 7 and causing glare.

[0034] As shown in Figure 5, the driver's seat 7 is positioned offset to the left with respect to the widthwise center of the machine body 2. The support bracket 14 that supports the work device 4 to the machine body 2 is positioned to the right of the driver's seat 7 in the widthwise direction of the machine body. The work light 140 and warning light 130 are positioned to the right of the support bracket 14 in the widthwise direction of the machine body. As a result, the work light 140 and warning light 130 are positioned to the right of the work device 4 in the widthwise direction of the machine body.

[0035] By determining the positional relationship between the driver's seat 7 and the work device 4 and the work light 140 and warning light 130 in this way, it is possible to prevent the work device 4 from interfering with the work light 140 and warning light 130 when the boom 16 of the work device 4 is raised or lowered. In addition, the light emitted from the work light 140 and warning light 130 can reach the opposite side (right side) of the driver's seat 7 in the machine width direction without being obstructed by the work device 4. In other words, the light emitted from the work light 140 and warning light 130 can reach a location that is difficult for the operator seated in the driver's seat 7 to see.

[0036] As shown in Figure 2, the warning light 130 is positioned in front of the front support column 12 (right front support column 12R). The work light 140 is also positioned in front of the front support column 12 (right front support column 12R). As shown in Figures 5 and 8, the warning light 130 is positioned in front of the front end of the roof 11. The work light 140 is also positioned in front of the front end of the roof 11. As shown in Figure 8, the work light 140 and the warning light 130 are positioned so that at least a portion of them overlap in a plan view. The front end of the warning light 130 is positioned in front of the front end of the work light 140.

[0037] As shown in Figure 8, the warning light 130 is positioned outside the width direction of the aircraft body 2 (outside in the aircraft width direction) of the front strut 12. The work light 140 is also positioned outside the width direction of the aircraft body 2 (outside in the aircraft width direction) of the front strut 12. Specifically, the warning light 130 is positioned to the right of the right front strut 12R. The work light 140 is positioned to the right of the right front strut 12R. As shown in Figure 7, in a front view, the warning light 130 and the work light 140 are positioned so as not to overlap with the right front strut 12R.

[0038] As described above, in this embodiment, the work light 140 is attached to the right front support 12R of the front support 12 of the cabin 8. As shown in Figure 7, a work light 141 (hereinafter referred to as "second work light 141") separate from the work light 140 is attached to the left front support 12L of the cabin 8. The second work light 141 is attached to the upper part of the left front support 12L via a bracket 142. The second work light 141 emits light in the forward and downward direction (including the left front downward and the right front downward).

[0039] As shown in Figure 7, the warning light 130 and the second work light 141 overlap in their vertical positions. That is, the warning light 130 is positioned at approximately the same height as the second work light 141. The work light 140 is positioned lower than the second work light 141. The upper end of the warning light 130 is higher than the upper end of the second work light 141.

[0040] As shown in Figures 7 and 9, the warning light 130 and the work light 140 are mounted on the same bracket 150 attached to the front support column 12 (right front support column 12R). This reduces the number of parts compared to when the warning light 130 and the work light 140 are mounted on separate brackets. Furthermore, because the warning light 130 and the work light 140 can be placed close together, the space required for mounting the warning light 130 and the work light 140 can be reduced. In addition, the weight of the work machine 1 can be reduced and costs can be lowered.

[0041] The bracket 150 has a first plate 151 attached to the front support 12 (right front support 12R) and a second plate 152 to which the warning light 130 and work light 140 are attached. The first plate 151 and the second plate 152 are formed integrally. The first plate 151 and the second plate 152 may be formed by bending a single plate or by welding or the like.

[0042] As shown in Figures 8 to 10, the first plate 151 has a first wall portion 151a and a second wall portion 151b. The first wall portion 151a is attached to the front support 12 (right front support 12R) and extends outward (to the right) in the width direction of the aircraft body 2 from the front support 12 (right front support 12R). The second wall portion 151b is bent from the outer end of the first wall portion 151a in the width direction of the aircraft body and extends outward and rearward (right rear) in the width direction of the aircraft body. In other words, the first plate 151 is bent at the boundary between the first wall portion 151a and the second wall portion 151b. By bending the first plate 151 in this way, the strength of the first plate 151 is improved. As a result, the second plate 152, which is formed integrally with the first plate 151, is reinforced, and the overall strength of the bracket 150 is also improved.

[0043] As shown in Figure 8, the first plate 151 is positioned on a straight line L3 (see Figure 5) connecting the center 7a of the driver's seat 7 and the right front support 12R in a plan view. This allows the first plate 151 to block the light emitting from the warning light 130 toward the driver's seat 7. Furthermore, because the first plate 151 has a second wall portion 151b, it is possible to suppress the light emitted from the warning light 130 from entering the cabin 8 through the right side window 8d (see Figure 2). Therefore, it is possible to more reliably prevent the light emitted from the warning light 130 from reaching the eyes of the operator seated in the driver's seat 7 and causing them to feel dazzled.

[0044] The second plate 152 is positioned with one side facing upwards and the other side facing downwards. The first plate 151 rises upwards from one side (the top surface) of the second plate 152. The warning light 130 is mounted on the upper side of the second plate 152. The work light 140 is mounted on the lower side of the second plate 152. In other words, the second plate 152 is positioned above the work light 140 and below the warning light 130. The second plate 152 functions as a light shield that blocks the upward direction of the light from the work light 140. As a result, the second plate (light shield) 152 can prevent or suppress interference between the light emitted from the work light 140 and the light emitted from the warning light 130.

[0045] As shown in Figure 8, in this embodiment, the second plate 152 overlaps the entire warning light 130 and a portion of the work light 140 in a plan view. However, the second plate 152 may overlap the entire warning light 130 and the entire work light 140 in a plan view.

[0046] The lower surface of the second plate 152 may be a reflector (such as a mirror) that reflects light. In this case, the light from the work light 140 that is directed upward can be reflected and guided downward. This prevents interference between the light from the work light 140 and the light from the warning light 130, and also increases the amount of light illuminating the area below.

[0047] As shown in Figures 8 to 10, an upright wall 153 is provided on the upper surface of the second plate 152. The upright wall 153 rises upward from the upper surface of the second plate 152. The upright wall 153 is formed in an arc shape along the lower part of the outer periphery of the warning light 130. The upright wall 153 functions as a waterproof wall that prevents water from hitting the warning light 130 when water is sprayed onto the cabin 8 for cleaning. It also functions as a reinforcing wall that reinforces the second plate 152.

[0048] As shown in Figure 11, a bolt BL3 with a threaded portion protruding downward is attached to the lower part of the warning light 130. A first through hole 152a is formed in the second plate 152 into which the threaded portion of the bolt BL3 is inserted. The warning light 130 is attached to the upper surface of the second plate 152 by inserting the threaded portion of the bolt BL3 through the first through hole 152a and screwing on the first nut NT1. For the sake of explanation, the upright wall 153 is omitted in Figure 11.

[0049] As shown in Figures 10 and 11, the work light 140 is fitted with a support 143 for supporting the work light 140 on a bracket 150. The support 143 is attached to the upper rear of the work light 140 by a bolt BL4 that extends horizontally. The work light 140 is pivotable around the axis of the bolt BL4, and by pivoting, its vertical orientation (direction of illumination) can be adjusted.

[0050] As shown in Figure 11, a bolt BL5 with a threaded portion protruding upward is attached to the support 143. A second through hole 152b is formed in the second plate 152 into which the threaded portion of the bolt BL5 is inserted. The support 143 is attached to the lower surface of the second plate 152 by inserting the threaded portion of the bolt BL5 through the second through hole 152b and screwing on the second nut NT2. As a result, the work light 140 is attached below the second plate 152 via the support 143. The work light 140 is rotatable around the axis of the bolt BL5 (around the vertical axis), and by rotating it, the direction in the left-right direction (direction of illumination) can be adjusted.

[0051] As shown in Figure 10, a through hole 151c is formed in the first wall portion 151a of the first plate 151. By inserting a bolt BL6 (see Figures 7 and 11) through this through hole 151c and screwing the bolt BL6 into a threaded hole formed in a mounting seat 12a (see Figures 8 and 9) provided on the front surface of the front support 12 (right front support 12R), the bracket 150 is attached to the front support 12 (right front support 12R) (see Figures 7 and 9).

[0052] In addition, the above description describes an example where the work light 140 and warning light 130 are mounted on the right front support column 12R of the cabin 8, but the work light 140 and warning light 130 may also be mounted on the left front support column 12L of the cabin 8.

[0053] Furthermore, although the above description describes an example in which the work light 140 and warning light 130 are attached to the front support 12 of the cabin 8, the work light 140 and warning light 130 may also be attached to the front support 12 (right front support or left front support) of a four-post canopy. In this case, it is preferable to attach the work light 140 and warning light 130 to the right front support of the four-post canopy, but they may also be attached to the left front support of the four-post canopy.

[0054] A preferred embodiment of the present invention provides a work machine 1 as described in the following items.

[0055] (Item 1) A work machine 1 comprising a machine body 2, a driver's seat 7 mounted on the machine body 2, a driver's seat protector body protecting the driver's seat 7, a work device 4 provided at the front of the machine body 2, a warning light 130 that emits light to the surroundings to draw attention, and a work light 140 that emits light towards the work area, wherein the driver's seat protector body has a roof 11 that covers the top of the driver's seat 7 and a front support column 12 positioned to the left front or right front of the driver's seat 7 and supporting the roof 11, the work light 140 is attached to the front support column 12, and the warning light 130 is attached to the front support column 12 above the work light 140.

[0056] According to the work machine 1 related to item 1, in a work machine 1 equipped with a work light 140 and a warning light 130, the light emitted from one can be blocked by the other, and the light emitted from the warning light 130 can be prevented from entering the field of vision of the operator seated in the driver's seat 7.

[0057] (Item 2) The warning light 130 is located in front of the front support column 12, as described in Item 1 of the work machine 1.

[0058] According to the work machine 1 related to item 2, the light emitted from the warning light 130 can reach a wide area in front, and the light emitted can be prevented from entering the field of view of the operator seated in the driver's seat 7, which is located behind the front support column 12.

[0059] (Item 3) The work machine 1 according to Item 1 or 2, wherein the warning light 130 is located in front of the front end of the roof 11.

[0060] According to the work machine 1 related to item 3, the light emitted from the warning light 130 can be reliably directed to a wide area in front.

[0061] (Item 4) The work machine 1 according to any one of items 1 to 3, wherein the warning light 130 is positioned further outward in the width direction than the front support column 12 of the machine body 2.

[0062] According to the work machine 1 related to item 4, the front support column 12 can block the light emitted from the warning light 130 inward in the width direction of the machine, thereby preventing the emitted light from entering the field of view of the operator seated in the driver's seat 7.

[0063] (Item 5) The work machine 1 according to any one of Items 1 to 4, wherein the warning light 130 is located on the extension of the straight line L3 connecting the center 7a of the driver's seat 7 and the front support column 12 in a plan view.

[0064] According to the work machine 1 related to item 5, the front support column 12 can block the light emitting from the warning light 130 toward the driver's seat 7, thereby effectively preventing the light emitting from the warning light 130 from entering the field of vision of the operator seated in the driver's seat 7.

[0065] (Item 6) The work machine 1 according to any one of Items 1 to 5, wherein the work light 140 and the warning light 130 are positioned so that at least a portion of them overlap in a plan view.

[0066] According to the work machine 1 related to item 6, the light emitted upward from the work light 140 is less likely to interfere with the light emitted from the warning light 130.

[0067] (Item 7) The work machine 1 according to any one of items 1 to 6, comprising a support bracket 14 for supporting the work device 4 on the machine body 2, the driver's seat 7 being positioned offset to the left with respect to the widthwise center of the machine body 2, the support bracket 14 being positioned to the right of the driver's seat 7 in the widthwise direction, and the work light 140 and the warning light 130 being positioned to the right of the support bracket 14 in the widthwise direction.

[0068] According to the work device 1 related to item 7, it is possible to prevent the work device 4 from interfering with the work light 140 and the warning light 130. In addition, the light from the work light 140 and the light from the warning light 130 can reach the opposite side (right side) of the machine in the width direction from the driver's seat 7 without being obstructed by the work device 4.

[0069] (Item 8) The work machine 1 according to any one of items 1 to 7, comprising a light-shielding plate (second plate 152) positioned above the work light 140 and below the warning light 130 to prevent interference between the light emitted from the work light and the light emitted from the warning light.

[0070] According to the work machine 1 related to item 8, the light emitted upward from the work light 140 can be blocked by the light shielding plate (second plate 152), thereby preventing the emitted light from interfering with the light emitted from the warning light 130.

[0071] (Item 9) The work machine 1 described in any of Items 1 to 8, wherein the warning light 130 and the work light 140 are mounted on the same bracket 150 attached to the front support column 12.

[0072] According to the work machine 1 related to item 9, the number of parts can be reduced compared to the case where the warning light 130 and the work light 140 are mounted on separate brackets, and the warning light 130 and the work light 140 can be placed close together and both mounted on the upper part of the front support column 12.

[0073] (Item 10) The work machine 1 according to Item 9, wherein the bracket 150 has a first plate 151 attached to the front support 12 and a second plate 152 to which the warning light 130 and the work light 140 are attached, the warning light 130 is attached above the second plate 152 and the work light 140 is attached below the second plate 152.

[0074] According to the work machine 1 related to item 10, the warning light 130 and the work light 140 can be positioned close together in the vertical direction. Furthermore, since the light emitting upward from the work light 140 can be blocked by the second plate 152, interference between the light emitting from the warning light 130 and the light emitting from the work light 140 can be prevented.

[0075] (Item 11) The work machine 1 according to Item 10, wherein the first plate 151 has a first wall portion 151a attached to the front support 12 and extending outward in the width direction from the front support 12 to the machine body 2, and a second wall portion 151b that bends from the width direction outer end of the first wall portion 151a and extends outward in the width direction and rearward.

[0076] According to the work machine 1 related to item 11, the strength of the first plate 151 is improved, and the strength of the second plate 152, which is integrally formed with the first plate 151, is also improved, thus improving the strength of the bracket 150. In addition, the second wall portion 151b can block the light emitting from the warning light 130 toward the driver's seat 7, thus preventing the light emitting from the warning light 130 from entering the field of view of the operator seated in the driver's seat 7.

[0077] (Item 12) The work machine 1 according to any one of items 1 to 11, wherein the upper end of the warning light 130 is located at a height that does not exceed the upper surface of the roof 11.

[0078] According to the work machine 1 related to item 12, it is possible to suppress the light emitted from the warning light 130 from reaching the rear of the cabin 8, thereby preventing the light from being emitted to a position far from the work area.

[0079] (Item 13) The work machine 1 according to any one of Items 1 to 12, wherein the warning light 130 is a rotating light that rotates and illuminates the surroundings.

[0080] According to the work machine 1 related to item 13, the light emitted from the warning light 130 can reliably alert people present around the work machine 1.

[0081] While embodiments of the present invention have been described above, the embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than by the foregoing description, and all modifications within the meaning and scope of equivalence to the claims are intended to be included. [Explanation of symbols]

[0082] 1. Work machine 2 units 4. Working equipment 7. Driver's seat 7a Center of the driver's seat 11 Roof 12 Front post 14 Support bracket 130 Warning light 140 Work Lights 150 bracket 151 1st board 151a 1st wall 151b 2nd wall section 152 Light shielding plate (second plate) L3: A straight line connecting the center of the driver's seat and the front support pillar.

Claims

1. The aircraft and, The cockpit mounted on the aforementioned aircraft, A driver's seat protector that protects the aforementioned driver's seat, A work device provided at the front of the aforementioned machine, Warning lights that emit light towards the surroundings to draw attention, A work light that illuminates the work area, Equipped with, The driver's seat protector comprises a roof that covers the top of the driver's seat and a front support column positioned to the left front or right front of the driver's seat and supporting the roof. The work light is attached to the front support column. The aforementioned warning light is a work device mounted on the front support column above the aforementioned work light.

2. The work machine according to claim 1, wherein the warning light is positioned in front of the front support column.

3. The work machine according to claim 1, wherein the warning light is positioned in front of the front end of the roof.

4. The work machine according to claim 1, wherein the warning light is positioned further outward in the width direction of the machine body than the front support column.

5. The work machine according to claim 1, wherein the warning light is positioned in a plan view on the extension of the straight line connecting the center of the driver's seat and the front support column.

6. The work machine according to claim 1, wherein the work light and the warning light are positioned so that at least a portion of them overlap in a plan view.

7. The work device is provided with a support bracket that supports it on the machine body, The aforementioned driver's seat is positioned offset to the left with respect to the widthwise center of the aircraft body. The support bracket is positioned to the right of the driver's seat in the width direction, The work machine according to claim 1, wherein the work light and the warning light are arranged to the right of the support bracket in the width direction.

8. The work machine according to claim 1, further comprising a light-shielding plate positioned above the work light and below the warning light to prevent interference between the light emitted from the work light and the light emitted from the warning light.

9. The work machine according to claim 1, wherein the warning light and the work light are mounted on the same bracket attached to the front support column.

10. The bracket comprises a first plate attached to the front support column and a second plate to which the warning light and the work light are attached. The work machine according to claim 9, wherein the warning light is mounted on the upper side of the second plate and the work light is mounted on the lower side of the second plate.

11. The work machine according to claim 10, wherein the first plate has a first wall portion attached to the front support and extending outward in the width direction from the front support to the machine body, and a second wall portion that bends from the outer end in the width direction of the first wall portion and extends outward in the width direction and rearward.

12. The work machine according to claim 1, wherein the upper end of the warning light is located at a height that does not exceed the upper surface of the roof.

13. The work machine according to any one of claims 1 to 12, wherein the warning light is a rotating light that rotates and illuminates the surroundings.

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