Work machine

Abstract

To provide a work machine which makes it easy to enhance the visibility of a pilot lamp.SOLUTION: A work machine 10 comprises a machine body 11, a pilot lamp 2 and a frame 6. The machine body 11 includes a driving seat 51. The pilot lamp 2 is a device for informing presence of the machine body 11 to surroundings. The frame 6 is located behind the driving seat 51. The frame 6 contains a longitudinal frame 61. The longitudinal frame 61 includes length along a vertical direction D1 and at least the upper end part is located at a higher position than the driving seat 51. The pilot lamp 2, supported by the longitudinal frame 61 is disposed on one side of a cross direction D3.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a work machine having a driver's seat. [Background technology]

[0002] As related art, a work machine (tractor) is known in which lamps serving as sidelights or direction indicators are attached to brackets (see, for example, Patent Document 1). In this work machine, the lamps are attached to an assist bar that protrudes diagonally forward and to the side from a front support pillar of the cabin that covers the driving operation section of the work machine. When the operator gets in and out of the cabin, he or she can hold onto the assist bar for support. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-084053 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration of the related art described above, for example, there are cases where the visibility of the indicator light (lamp) attached to the assist bar is poor from the rear of the work machine.

[0005] An object of the present invention is to provide a work machine in which the visibility of an indicator light can be easily improved. [Means for solving the problem]

[0006] A work machine according to one aspect of the present invention comprises a machine body, an indicator light, and a frame. The machine body has a driver's seat. The indicator light is a device for notifying the surrounding area of ​​the presence of the machine. The frame is located behind the driver's seat. The frame includes a vertical frame. The vertical frame has a length in the vertical direction, and at least an upper end portion is located above the driver's seat. The indicator light is supported by the vertical frame. [Effects of the Invention]

[0007] According to the present invention, a work machine can be provided in which the visibility of an indicator light can be easily improved. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic perspective view of a work machine according to a first embodiment, as viewed from the left front. [Figure 2] FIG. 2 is a schematic perspective view of the work machine according to the first embodiment as viewed from the left rear. [Figure 3] FIG. 3 is a schematic perspective view of the work machine according to the first embodiment as viewed from the left rear. [Figure 4] FIG. 4 is a schematic plan view of the work machine according to the first embodiment. [Figure 5] FIG. 5 is a schematic left side view of the work machine according to the first embodiment. [Figure 6] FIG. 6 is a schematic right side view of the work machine according to the first embodiment. [Figure 7] FIG. 7 is a schematic front view of the work machine according to the first embodiment. [Figure 8] FIG. 8 is a schematic rear view of the work machine according to the first embodiment. [Figure 9] FIG. 9 is a schematic perspective view of a main part showing the mounting structure of the indicator light of the work machine according to the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following description will discuss preferred embodiments of the present invention with reference to the accompanying drawings. The preferred embodiments are merely examples of the present invention and are not intended to limit the technical scope of the present invention.

[0010] (Embodiment 1) [1] Overall structure First, the overall configuration of a work machine 10 according to this embodiment will be described with reference to FIGS.

[0011] The work machine 10 is equipped with a machine body 11. The machine body 11 is configured so that a work implement 12 (see Figure 1) can be attached to it. In Figure 1, the outline of the work implement 12 is shown by imaginary lines (two-dot chain lines).

[0012] In this embodiment, for ease of explanation, the vertical direction when the work machine 10 is in a usable state is defined as the up-down direction D1 (see FIG. 1). The front-to-rear direction D2 and the left-to-right direction D3 are defined based on the direction as seen by the operator (driver) riding on the body 11 (of the driving section 5) of the work machine 10. The left side of the left-to-right direction D3 refers to the left side when the body 11 is traveling forward (advancing), and the right side of the left-to-right direction D3 refers to the right side when the body 11 is traveling forward (advancing). However, these directions are not intended to limit the direction of use of the work machine 10 (direction during use).

[0013] The work machine 10 moves through a target area F1 (see FIG. 1 ) while performing some kind of work within the target area F1 using the work implement 12. In the present disclosure, "work" refers to a job that the work implement 12 performs in the target area F1, and includes, for example, various types of agricultural work such as plowing, leveling, sowing, fertilizing, spraying pesticides, planting (rice planting) or harvesting, as well as construction work. In this embodiment, as an example, the work performed by the work machine 10 is plowing.

[0014] The work implement 12 performs work within the target area F1 when the body 11 of the work machine 10 moves through the target area F1. In this embodiment, as an example, the work implement 12 is a tiller such as a rotary tiller or plow that performs tilling work.

[0015] This type of work implement 12 includes a directly mounted work implement that is attached directly to a three-point linkage, and a towed work implement that is towed by the machine body 11. In this embodiment, as an example, the work implement 12 is a directly mounted rotary tiller that is detachably attached to the machine body 11 of the work machine 10. Here, the work implement 12 is attached to the rear side of the machine body 11 (the side opposite to the forward direction of the machine body 11). In other words, the (directly mounted) work implement 12 is connected to the rear side of the machine body 11, and performs work while moving forward together with the machine body 11 when the machine body 11 moves forward. In this embodiment, the work implement 12 is considered to be included as a component of the work machine 10, but because the work implement 12 is detachable from the machine body 11, it does not have to be included as a component of the work machine 10.

[0016] In this disclosure, the term "work machine" refers to a vehicle that performs various tasks in a target area F1, such as a field, and examples include agricultural machines (farm machinery) such as tractors, seed drills, rice transplanters, spreaders, sprayers, transplanters, and harvesters. The work machine 10 may also be, for example, a construction machine (construction machinery). In this embodiment, unless otherwise specified, the work machine 10 will be described as a tractor equipped with a rotary tiller as the work implement 12. In other words, the work machine 10 is configured by connecting a (direct-mounted) rotary tiller as the work implement 12 to a tractor as the machine body 11. With this work machine 10, tilling work can be performed in the target area F1, such as a field, by the machine body 11 traveling through the target area F1.

[0017] Thus, in this embodiment, the machine body 11 is a type of vehicle that moves by traveling through the target area F1. Here, the machine body 11 has steering wheels 111 consisting of a pair of left and right front wheels, and driving wheels 112 consisting of a pair of left and right rear wheels, and travels through the target area F1 using these four wheels (the pair of steering wheels 111 and the pair of driving wheels 112).

[0018] In the present disclosure, the term "target area" refers to an area in which the work machine 10 moves and performs various tasks, such as plowing, leveling, sowing, fertilizing, spraying pesticides, planting (rice transplanting), or harvesting, and includes paddy fields, fields, orchards, pastures, and the like. For example, if the target area F1 is a paddy field or field where crops (agricultural products) such as rice, wheat, soybeans, or buckwheat are grown, the crops grown in the target area F1 are agricultural products. Furthermore, if plants are grown in a nursery, the nursery is the target area F1, and if trees for lumber are grown in a forest, as in forestry, the forest is the target area F1. In this case, the crops grown in the target area F1 are plants, trees, or the like. In this embodiment, unless otherwise specified, the work machine 10 is used for plowing a field (target area F1), and the target area F1 is a paddy field for growing rice, as an example. Furthermore, the target area F1 is not limited to a farm field. For example, if the work machine 10 is a construction machine, the target area F1 is the site where the construction machine performs work.

[0019] Furthermore, the work machine 10 can travel not only in the target area F1 (fields in this case), but also, for example, on roads such as extra-field routes outside the target area F1. An extra-field route is, for example, an inter-field connecting road that connects a plurality of target areas F1 (fields). An inter-field connecting road is a farm road, forest road, public road, private road, or motorway, and may be a road exclusively for the work machine 10, or may be a road that is passable by general vehicles (passenger cars, etc.).

[0020] In the construction machine 10 according to this embodiment, the machine body 11 has a driver's seat 51. The driver's seat 51 is where the operator sits. Therefore, the construction machine 10 performs work while traveling in the target area F1 by operation (manual driving) of the operator sitting in the driver's seat 51.

[0021] However, the construction machine 10 is not limited to a configuration in which it travels by manual operation by an operator sitting in the driver's seat 51 (manual traveling), and may, for example, be capable of operating by automatic traveling (autonomous traveling, etc.). Furthermore, the construction machine 10 may be an unmanned vehicle that travels automatically, or may be operated by remote control by an operator.

[0022] "Autonomous driving" as used in this disclosure includes "autonomous driving," in which the work machine 10 drives autonomously without operator operation, and "semi-autonomous driving," in which only steering is automated, such as straight-line driving assist. "Autonomous driving" is a driving mode in which, for example, the steering wheels 111 are automatically steered and control of the vehicle speed and the like is also performed automatically so that the work machine 10 drives along a target route. "Straight-line driving assist" is a driving mode in which, for example, only the steering wheels 111 are automatically steered so that the work machine 10 drives along a straight-line route parallel to a reference straight line (reference line), and the vehicle speed and the like are controlled by operator operation.

[0023] In other words, in "semi-automatic driving," although the work machine 10 cannot drive without operator operation, the burden of steering on the operator is reduced and the work machine 10 can drive along a target path such as a straight path, leading to improved work efficiency. In both autonomous driving and semi-automatic driving, the steering wheels 111 are automatically steered, so this can be said to be a form of "automatic steering mode." In automatic steering mode, the steering wheels 111 are automatically steered by an automatic steering mechanism including a steering motor. In other words, automatic steering is achieved by changing the direction of the steering wheels 111 using the output of the steering motor, instead of the operator operating the steering operation unit 41.

[0024] More specifically, the machine body 11 has a driving section 5, a power source 18 (see FIG. 4), a running device 13, a steering device 14, and the like.

[0025] The driving unit 5 is provided with a steering operation unit 41, an operation lever 42 (see FIG. 4), a pedal 43 (see FIG. 4), etc. The steering operation unit 41, the operation lever 42, the pedal 43, etc. are operation units that are operated by an operator riding in the driving unit 5. The work machine 10 is configured to be capable of manual travel by the operator manually operating these operation units.

[0026] A work implement coupling section 46 (see FIG. 2) configured with a three-point linkage mechanism or the like is provided at the rear of the machine body 11. A work implement 12 can be attached to the work implement coupling section 46. Power generated by the power source 18 can be transmitted to the towed work implement 12 via a transmission and a power take-off shaft (PTO shaft) located at the rear of the machine body 11. Here, the work implement 12 is detachably coupled to the work implement coupling section 46, so it is also possible to couple a device other than the work implement 12 to the machine body 11.

[0027] In this embodiment, the work implement 12 is a directly mounted rotary tiller, and is therefore capable of tilling a field serving as the target area F1 when the machine body 11 moves forward. The work implement 12 is variable in its position (relative height) in the up-down direction D1 relative to the machine body 11. This makes it possible to vary the height of the work implement 12 when the field scene, which is the ground surface of the target area F1, is used as a reference, and for example, by raising the work implement 12 to a height that separates it from the ground surface of the target area F1, the work machine 10 can travel in a non-working state in which the work implement 12 is not performing work.

[0028] The traveling device 13 is a device that drives the drive wheels 112 consisting of (a pair of left and right) rear wheels, thereby causing the work machine 10 to travel. The traveling device 13 includes a transmission, and transmits power generated by the power source 18 to the drive wheels 112 via the transmission, thereby causing the machine body 11 to travel forward or backward. Furthermore, the traveling device 13 includes a brake device, and is also capable of slowing down or stopping the machine body 11. In this embodiment, the drive wheels 112 are normal wheels, but this is not limiting, and the machine body 11 may, for example, be a half-crawler type machine body 11 that uses crawlers (tracks) for the drive wheels 112.

[0029] The steering device 14 is a device that steers the steering wheels 111 consisting of (a pair of left and right) front wheels. The steering device 14 includes a steering operation unit 41, and steers the steering wheels 111 in response to an operator's operation of the steering operation unit 41. As shown in FIG. 4, the pair of steering wheels 111 have a reference position in which they face the front-rear direction D2 in a plan view, that is, a position in which their rotation axes are aligned in the left-right direction D3, and are steered by the steering device 14 so as to tilt left or right from the reference position. In other words, the steering device 14 steers the pair of steering wheels 111 by changing the orientation of the pair of steering wheels 111.

[0030] When the steering operation unit 41 is operated clockwise from a state in which the pair of steering wheels 111 are in the reference position, the steering device 14 steers the pair of steering wheels 111 (front ends) to tilt to the right, causing the vehicle 11 to turn right when the vehicle 11 is moving forward. On the other hand, when the steering operation unit 41 is operated counterclockwise from a state in which the pair of steering wheels 111 are in the reference position, the steering device 14 steers the pair of steering wheels 111 (front ends) to tilt to the left, causing the vehicle 11 to turn left when the vehicle 11 is moving forward. In this embodiment, it is the steering operation unit 41 that the operator operates during manual steering, but this is not limiting, and manual steering may be performed by the operator operating an operation lever or the like, for example.

[0031] The traveling device 13 and steering device 14 enable the vehicle 11 to travel within the target area F1 in the forward / backward direction D2 and the left / right direction D3. For example, when the driving wheels 112 are driven by the traveling device 13 to move the vehicle 11 forward, if the angle of the steering wheels 111 is changed by the steering device 14, the vehicle 11 turns in the left / right direction D3, changing the traveling direction of the vehicle 11.

[0032] The power source 18 is a drive source that supplies power to at least the traveling device 13. The power source 18 is located at the front of the machine body 11 and is covered by a hood 45. The power source 18 is the drive source for the work machine 10 and is, for example, a diesel engine. However, the power source 18 of the work machine 10 is not limited to a diesel engine, and may be an engine such as a gasoline engine, an electric motor, or a hybrid system of an engine and an electric motor, for example.

[0033] Furthermore, the power source 18 drives a hydraulic pump, causing the hydraulic pump to supply hydraulic oil to a hydraulic cylinder or the like of a power steering mechanism of the steering device 14. In other words, the power source 18 is configured to be able to supply power to the power steering mechanism as well.

[0034] The driver's section 5 is disposed behind the power source 18 in the vehicle body 11. The driver's section 5 has a driver's seat 51 and a dashboard 52 (see FIG. 2 ). The dashboard 52 also serves as a steering column and is disposed in front of the driver's seat 51.

[0035] As an example, the steering operation unit 41 is a steering wheel operated by an operator sitting in the driver's seat 51. The steering operation unit 41 is rotatably supported by a steering shaft arranged in the dashboard 52. The steering operation unit 41 is arranged in front of the driver's seat 51 and above the dashboard 52. The vehicle 11 can change the direction (steering angle) of the steering wheels 111 by rotating the steering operation unit 41.

[0036] In addition, the driving unit 5 is arranged with, for example, an operating lever 42 and pedals 43 that are operated by the operator, a meter that indicates the speed of the work machine 10, etc. The operating levers 42 may include multiple types of levers, such as a main speed change lever, an auxiliary speed change lever, or an operation lever. Furthermore, the pedals 43 may include multiple types of pedals, such as an accelerator pedal and a brake pedal.

[0037] Incidentally, the work machine 10 according to this embodiment is further equipped with an indicator light 2. The indicator light 2 is a device for notifying the surrounding area of ​​the presence of the machine body 11. In other words, the indicator light 2 emits light toward the surrounding area of ​​the machine body 11, and uses this light to alert people and others around the machine body 11 to the presence of the machine body 11 (or that the work machine 10 is traveling). In this embodiment, as an example, the indicator light 2 is a slow-moving vehicle indicator light (beacon lamp) which is required to be equipped mainly in countries such as South Korea.

[0038] In this embodiment, the indicator light 2 serving as a low-speed vehicle indicator light satisfies all of the following criteria (1) to (7). (1) One or two slow-moving vehicle indicator lights shall be provided. (2) The light color shall be yellow. (3) The luminous intensity per lamp from the front, rear, left and right HV measurement points is not less than 50 candelas and not more than 1050 candelas ("H" refers to the intersection line between the test screen and a plane horizontal to the ground that passes through the light source of the lighting device, and "V" refers to the intersection line between the test screen and a plane that is simultaneously perpendicular to the test screen and the ground that passes through the light source of the lighting device), and has been tested by a domestic or overseas accredited testing organization. (4) The slow-moving vehicle indicator light is a round flashing type (the bottom of the installation surface is round with a circular pattern). (5) The center points of the slow-moving vehicle indicator lights shall be installed symmetrically with respect to the center line of the aircraft so that the irradiated light or the light reflected by a reflective object does not interfere with the driving operation of the driver. However, in the case of one light, its position shall be on the center line of the aircraft or to the left of the center line of the aircraft. (6) The slow-speed vehicle indicator light shall be lit, observable from the front, rear, left, and right in a tolerable condition, and shall be resistant to damage, except that in the case of a power tiller trailer, it shall be installed at the highest point of the trailer (excluding the sun visor) so that it can be adjusted in length by at least 20 cm. (7) Low-speed vehicle indicator lights shall be designed to automatically turn on after sunset or to turn on and off simultaneously with other lighting devices (headlights, sidelights, backlights, etc.). However, if they are designed to turn on automatically, they shall be equipped with a separate on / off device, and if they are designed to turn on simultaneously with other lighting devices, a separate off device shall be installed so that they can be used inside livestock barns.

[0039] In the work machine 10 according to this embodiment, the indicator light 2 is illuminated when the lighting switch for the headlight 31 (see FIG. 1) is in the on state. In other words, the indicator light 2 is illuminated together with the headlight 31 that projects light forward from the machine body 11. In this embodiment, as an example, the indicator light 2 is illuminated in a lighting pattern of repeated flashing, but this is not limiting, and the indicator light 2 may be illuminated in various lighting patterns, such as continuous lighting or flashing lighting.

[0040] Such indicator lights 2 are preferably installed in a position that is as visible as possible from the surroundings of the machine body 11, in order to notify those in the vicinity of the machine body 11. However, with the configurations of the related art described above, there are cases where the visibility of the indicator lights (lamps) attached to the assist bar is poor, for example, from the rear of the work machine. Therefore, the work machine 10 according to this embodiment employs the configuration described below to provide a work machine 10 that makes it easy to improve the visibility of the indicator lights 2.

[0041] That is, the work machine 10 according to this embodiment comprises a body 11, an indicator light 2, and a frame 6. The body 11 has a driver's seat 51. The indicator light 2 is a device for notifying the surrounding area of ​​the presence of the body 11. The frame 6 is located behind the driver's seat 51. The frame 6 includes a vertical frame 61. The vertical frame 61 has a length along the vertical direction D1, and at least its upper end is located above the driver's seat 51. The indicator light 2 is supported by the vertical frame 61.

[0042] According to this configuration, the indicator light 2 is arranged using the vertical frame 61 of the frame 6 located behind the driver's seat 51. The vertical frame 61 has a length along the vertical direction D1, and at least the upper end is located higher than the driver's seat 51, so the indicator light 2 is easier to see from all around the work machine 10, including the rear of the work machine 10. As a result, it is possible to provide a work machine 10 in which the visibility of the indicator light 2 can be easily improved.

[0043] Here, the frame 6 on which the indicator light 2 is supported is a safety frame (ROPS frame) that protects the operator in the event of the work machine 10 tipping over. In other words, the work machine 10 is a ROPS specification that includes the frame 6 as a ROPS frame. Because the work machine 10 is used outdoors, the frame 6 is a metal member that has been treated with rust prevention and has sufficient strength to support the weight of the machine body 11 in the event of the work machine 10 tipping over.

[0044] In this embodiment, the frame 6 includes a left-side vertical frame 61 and a right-side vertical frame 62 that are arranged side by side in the left-right direction D3 of the fuselage 11. The frame 6 further includes a horizontal frame 63 that connects the upper parts of the left-side vertical frame 61 and the right-side vertical frame 62. The left-side vertical frame 61 and the right-side vertical frame 62 are both vertical frames that have a length along the up-down direction D1 and at least their upper ends are located above the driver's seat 51. Here, the horizontal frame 63 has a length along the left-right direction D3 and connects the upper ends of the left-side vertical frame 61 and the right-side vertical frame 62. Therefore, the frame 6, including the left-side vertical frame 61, the right-side vertical frame 62, and the horizontal frame 63 as a whole, has a generally U-shape that is open downward.

[0045] Here, the vertical frame that supports the indicator light 2 is one of the left vertical frame 61 and the right vertical frame 62. That is, the indicator light 2 is supported by one of the vertical frames, the left vertical frame 61 and the right vertical frame 62. In this embodiment, as an example, of the left vertical frame 61 and the right vertical frame 62 that are aligned in the left-right direction D3, the indicator light 2 is supported by the left vertical frame 61 that is located relatively to the left.

[0046] That is, the frame 6 includes, as vertical frames, a left-side vertical frame 61 and a right-side vertical frame 62 arranged side by side in the left-right direction D3 of the aircraft body 11. The vertical frame 61 on which the indicator light 2 is supported is at least one of the left-side vertical frame 61 and the right-side vertical frame 62. In this embodiment, particularly, the vertical frame 61 on which the indicator light 2 is supported is the left-side vertical frame 61. This improves the visibility of the indicator light 2 to the side of the aircraft body 11 (particularly the left side in this embodiment). However, this configuration is not limited to this, and it is sufficient that the indicator light 2 is supported by at least one of the left-side vertical frame 61 and the right-side vertical frame 62. The indicator light 2 may be supported only by the right-side vertical frame 62, or the indicator light 2 may be supported by both the left-side vertical frame 61 and the right-side vertical frame 62.

[0047] A canopy 44 can be attached to the frame 6. The canopy 44 is a roof member that is placed above the driver's section 5 so as to cover at least the driver's seat 51 and the upper part of the frame 6. As a result, the operator sitting in the driver's seat 51 is covered by the canopy 44. When attached to the frame 6, the canopy 44 is supported by the frame 6 in a manner that protrudes forward from the frame 6.

[0048] The canopy 44 is removably attached to the frame 6. Fig. 3 shows an exploded perspective view of the canopy 44 removed from the frame 6. The canopy 44 is not shown in Fig. 4. In this way, by removably attaching the canopy 44 to the frame 6, the machine body 11 and the frame 6 can be shared between a work machine 10 with ROPS specifications that does not have a canopy 44 and a work machine 10 with canopy specifications that have a canopy 44. In other words, attaching the canopy 44 to the frame 6 results in a canopy specification, and removing the canopy 44 from the frame 6 results in a ROPS specification.

[0049] Furthermore, the frame 6 is supported by the machine body 11 so as to be able to change its posture between an upright posture and a lying down posture when the work machine 10 is in use. The upright posture is a posture in which the vertical frames of the frame 6 (the left vertical frame 61 and the right vertical frame 62) are upright along the up-down direction D1. The lying down posture is a posture in which the vertical frames of the frame 6 (the left vertical frame 61 and the right vertical frame 62) are lying down along the fore-aft direction D2.

[0050] Specifically, the machine body 11 has support parts 60 for supporting the frame 6. The frame 6 is attached to the support parts 60 in a state in which it can be switched between an upright position shown by a solid line in FIG. 3 and a lying position shown by an imaginary line (two-dot chain line) in FIG. 3. In this embodiment, as an example, the left vertical frame 61 and the right vertical frame 62 of the frame 6 are supported by a pair of left and right support parts 60. The frame 6 in the upright position is switched to the lying position by rotating the horizontal frame 63 backward by approximately 90 degrees around the pair of support parts 60 as a fulcrum. Conversely, the frame 6 in the lying position is switched to the upright position by rotating the horizontal frame 63 upward by approximately 90 degrees around the pair of support parts 60 as a fulcrum.

[0051] That is, the machine body 11 has a support section 60 that supports the frame 6 so that the position can be changed between an upright position and a lying position. As a result, for example, when the work machine 10 is loaded onto a carrier and transported, or when the work machine 10 is stored in a barn or the like, the height of the work machine 10 can be kept low by putting the frame 6 into the lying position.

[0052] In addition to the configuration described above, the work machine 10 is further equipped with a control device, a battery, a fuel tank, various sensors, etc. The control device controls each part of the work machine 10 (including the indicator light 2). The battery supplies operating power to each part of the work machine 10, such as the control device.

[0053] [2] Configuration around the indicator light Next, the configuration of the vicinity of the indicator light 2 of the work machine 10 according to this embodiment will be described in detail with reference to FIGS.

[0054] In this embodiment, as an example, the indicator light 2 is formed in a cylindrical shape having a length in the up-down direction D1. The indicator light 2 is configured to emit light all around the indicator light 2 in a plan view.

[0055] The indicator light 2 has one or more light sources that emit light when supplied with power. The one or more light sources are, for example, semiconductor light-emitting elements such as light-emitting diodes (LEDs) or organic electroluminescence (EL) elements. In this embodiment, as an example, a light-emitting diode that emits yellow light is used as the light source, and the color of the light emitted by the indicator light 2 is yellow. Therefore, even in environments such as rain or fog, the light from the indicator light 2 is less likely to scatter, making it easier to see the lit state of the indicator light 2 from a distance.

[0056] As described above, the indicator light 2 is supported by the left vertical frame 61 of the frame 6 located behind the driver's seat 51. Therefore, the indicator light 2 is located to the left rear when viewed from the driver's seat 51.

[0057] 5 and 6, the indicator light 2 is disposed at a position offset to one side relative to the (left) vertical frame 61 in the fore-and-aft direction D2 of the aircraft body 11. In other words, the indicator light 2 is supported at a position offset to one side relative to the vertical frame 61 in the fore-and-aft direction D2. In the present embodiment, as an example, the indicator light 2 is disposed at a position offset to the rear side, opposite the driver's seat 51, relative to the vertical frame 61 in the fore-and-aft direction D2. This makes it less likely that the indicator light 2 will be hidden behind the vertical frame 61 when the aircraft body 11 is viewed from the left or right, improving the visibility of the indicator light 2.

[0058] 7 and 8, the indicator light 2 is disposed at a position offset to one side relative to the (left) vertical frame 61 in the left-right direction D3 of the aircraft body 11. That is, the indicator light 2 is supported at a position offset to one side relative to the vertical frame 61 in the left-right direction D3. In the present embodiment, as an example, the indicator light 2 is disposed at a position offset to the left side, opposite the driver's seat 51, relative to the vertical frame 61 in the left-right direction D3. This makes it less likely that the indicator light 2 will be hidden behind the vertical frame 61 when the aircraft body 11 is viewed from the front or rear, improving the visibility of the indicator light 2.

[0059] In this way, the indicator light 2 is disposed at a position offset rearward relative to the (left) vertical frame 61, opposite the driver's seat 51 in the front-to-rear direction D2, and to the leftward opposite the driver's seat 51 in the left-to-right direction D3, that is, outside the vertical frame 61 (opposite the driver's seat 51). In short, the indicator light 2 is disposed at a position diagonal as seen from the driver's seat 51, with the vertical frame 61 as the reference, in a plan view. In other words, in a plan view, the vertical frame 61 is located between (the center of) the driver's seat 51 and (the center of) the indicator light 2.

[0060] As a result, whether the machine body 11 is viewed from the front, rear, left, or right, the indicator lights 2 are less likely to be hidden behind the vertical frame 61, improving the visibility of the indicator lights 2. On the other hand, when viewed from the operator sitting in the driver's seat 51, the indicator lights 2 are hidden behind the vertical frame 61, making it difficult for the operator to look directly at the indicator lights 2 and making it less likely that the light from the indicator lights 2 will be bothersome.

[0061] Furthermore, in this embodiment, as described above, the frame 6 includes the left-side vertical frame 61, the right-side vertical frame 62, and the horizontal frame 63. Here, the indicator light 2 is supported by a vertical frame consisting of one of the left-side vertical frame 61 and the right-side vertical frame 62 (the left-side vertical frame 61 in this embodiment), and is positioned below at least the horizontal frame 63. Specifically, the highest point of the indicator light 2 is located at a position lower (lower) than the lowest point of the horizontal frame 63. This makes it less likely that the indicator light 2 will be hidden in the shadow of the horizontal frame 63 when viewed from around the fuselage 11, improving the visibility of the indicator light 2.

[0062] Furthermore, in this embodiment, as described above, the machine body 11 has the support portion 60 that supports the frame 6, and the indicator light 2 is located above the support portion 60. Specifically, the lowest portion of the indicator light 2 is located at a higher position (above) than the highest portion of the support portion 60. This allows the indicator light 2 supported by the vertical frame 61 to change position together with the frame 6 (between an upright position and a reclined position).

[0063] 9, in this embodiment, the indicator light 2 is supported on the (left) vertical frame 61 by a bracket 21. In other words, the indicator light 2 is not attached directly to the vertical frame 61, but is attached via the bracket 21. The bracket 21 is, for example, a metal member that has been treated to be rustproof, and has sufficient strength to support the weight of the indicator light 2.

[0064] The bracket 21 is attached to the left vertical frame 61 using a fastener such as a U-bolt 22. Here, the bracket 21 is arranged on the outside (left side) of the left vertical frame 61 and fixed to the left vertical frame 61 by the U-bolt 22. The bracket 21 arranged on the left side of the left vertical frame 61 has a length along the front-to-rear direction D2, and is attached to the left vertical frame 61 so as to protrude rearward from the left vertical frame 61.

[0065] The upper surface of the bracket 21 is approximately horizontal. The indicator light 2 is placed on the upper surface of the bracket 21 and attached to the bracket 21 using fasteners such as bolts and nuts. As a result, the indicator light 2 is supported on the vertical frame 61 via the bracket 21.

[0066] As described above, the work machine 10 according to this embodiment further includes the bracket 21 that supports the indicator light 2. The bracket 21 is attached to the (left) vertical frame 61. With this configuration, the indicator light 2 can be easily and firmly fixed to the vertical frame 61.

[0067] Furthermore, a cable 20 (harness) for electrically connecting the indicator light 2 to a control device or the like is pulled out from the indicator light 2 toward the front right and routed downward along the inside (right side) of the (left) vertical frame 61. The cable 20 is fixed to the vertical frame 61 by, for example, a cable tie, a cable clamp, or the like.

[0068] In this embodiment, as described above, the canopy 44 can be attached to the frame 6, and therefore, as shown in Fig. 9, the frame 6 has attachment portions 64 for attaching the canopy 44 to the upper portions of each of the left-side vertical frame 61 and the right-side vertical frame 62. The canopy 44 is attached to the attachment portions 64 using fasteners such as bolts and nuts. The bracket 21 that supports the indicator light 2 is attached to the left-side vertical frame 61 at a position that is at least lower than the attachment portion 64.

[0069] In other words, the (left) vertical frame 61 that supports at least the indicator light 2 has a mounting portion 64 for mounting the canopy 44 that is disposed above the driver's seat 51. The indicator light 2 is supported below the mounting portion 64 on the vertical frame 61. With this configuration, even when the canopy 44 is attached to the frame 6, the support structure (bracket 21) of the indicator light 2 and the support structure (mounting portion 64) of the canopy 44 do not interfere with each other, so it is possible to attach the canopy 44 with the indicator light 2 still attached.

[0070] In this embodiment, a status display unit 32 is supported on each of the left vertical frame 61 and the right vertical frame 62. The status display unit 32 is a device that indicates the traveling status of the machine body 11, and is, for example, a turn signal and / or a brake light. The status display unit 32 is disposed on the outer side (left side) of the left vertical frame 61 and the outer side (right side) of the right vertical frame 62, respectively, and is disposed in a direction that allows the lighting status to be seen at least from the rear of the machine body 11. The indicator light 2 is attached at a position higher than the status display unit 32 supported on at least the left vertical frame 61.

[0071] In other words, the (left) vertical frame 61, which supports at least the indicator light 2, also supports the status display unit 32, which indicates the traveling status of the vehicle 11. The indicator light 2 is located higher than the status display unit 32. Specifically, the lowest part of the indicator light 2 is located higher (above) than the highest part of the status display unit 32. With this configuration, even when the status display unit 32 is attached to the frame 6, the indicator light 2 and the status display unit 32 do not interfere with each other, so it is possible to support both the indicator light 2 and the status display unit 32 on the vertical frame 61.

[0072] [3] Variation Below, we will list some modified examples of embodiment 1. The modified examples explained below can be applied in appropriate combinations.

[0073] It is not essential that the indicator light 2 be supported by the left vertical frame 61 of the left vertical frame 61 and the right vertical frame 62, and it may be supported by the right vertical frame 62, for example. Furthermore, a plurality of (two or more) indicator lights 2 may be provided, and for example, two indicator lights 2 may be supported by each of the left vertical frame 61 and the right vertical frame 62. Furthermore, four indicator lights 2 may be arranged at the four corners of the driver's section 5 in a plan view.

[0074] Furthermore, it is not essential that the canopy 44 be attachable to the frame 6, and the canopy 44 may be omitted as appropriate.

[0075] The work machine 10 may also be of cabin specification, having a cabin that forms the outer shell of the driver's section 5. In this case, the indicator light 2 is supported on a vertical frame located behind the driver's seat 51 within the cabin frame of the cabin.

[0076] [Appendix to the invention] The following is a summary of the invention extracted from the above-described embodiment. Note that the configurations and processing functions described in the following supplementary notes can be selected and combined as desired.

[0077] <Appendix 1> an aircraft having a driver's seat; an indicator light for informing the surroundings of the presence of the aircraft; a frame located behind the driver's seat, The frame includes a vertical frame having a length along the vertical direction and at least an upper end portion of which is located above the driver's seat, The indicator light is supported by the vertical frame. Work machinery.

[0078] <Appendix 2> The indicator light has a yellow light color. 1. A work machine as described in Appendix 1.

[0079] <Appendix 3> the frame includes a left vertical frame and a right vertical frame arranged side by side in the left-right direction of the airframe, The vertical frame on which the indicator light is supported is at least one of the left vertical frame and the right vertical frame. 1. A work machine as defined in appendix 1 or 2.

[0080] <Appendix 4> The frame is a left vertical frame and a right vertical frame arranged side by side in the left-right direction of the aircraft; a horizontal frame connecting upper portions of the left vertical frame and the right vertical frame, The vertical frame on which the indicator lamp is supported is one of the left vertical frame and the right vertical frame, The indicator light is located below the horizontal frame. 4. A work machine according to any one of appendices 1 to 3.

[0081] <Appendix 5> The indicator light is disposed at a position offset to one side with respect to the vertical frame in the fore-and-aft direction of the aircraft. 5. A work machine according to any one of appendices 1 to 4.

[0082] <Appendix 6> The indicator light is disposed at a position offset to one side relative to the vertical frame in the left-right direction of the aircraft. 6. A work machine according to any one of appendices 1 to 5.

[0083] <Appendix 7> The indicator lamp is disposed at a diagonal position as viewed from the driver's seat with respect to the vertical frame in a plan view. 7. A work machine according to any one of appendices 1 to 6.

[0084] <Appendix 8> the airframe has a support portion that supports the frame so that the frame can change its posture between an upright posture and a lying posture, The indicator light is located above the support portion. A work machine according to any one of appendices 1 to 7.

[0085] <Appendix 9> the vertical frame has a mounting portion for mounting a canopy disposed above the driver's seat, The indicator light is supported below the mounting portion on the vertical frame. A work machine according to any one of appendices 1 to 8.

[0086] <Appendix 10> A status display unit that indicates the running status of the vehicle is supported on the vertical frame, The indicator light is located above the status display unit. A work machine according to any one of appendices 1 to 9.

[0087] <Appendix 11> Further, a bracket is provided to support the indicator light. The bracket is attached to the vertical frame. A work machine according to any one of appendices 1 to 10. [Explanation of symbols]

[0088] 2 indicator light 6 frames 10. Work Machinery 11 aircraft 21 Bracket 32 Status display section 44 Canopy 51 Driver's seat 60 Support part 61 (left side) vertical frame 62 Right vertical frame 63 Horizontal Frame 64 Mounting part D1 Vertical direction D2 Anteroposterior direction D3 Left and right direction

Claims

1. an aircraft having a driver's seat; an indicator light for informing the surroundings of the presence of the aircraft; a frame located behind the driver's seat, The frame includes a vertical frame having a length along the vertical direction and at least an upper end portion of which is located above the driver's seat, The indicator light is supported by the vertical frame. Work machinery.

2. The indicator light has a yellow light color.

2. The work machine according to claim 1.

3. the frame includes a left vertical frame and a right vertical frame arranged side by side in the left-right direction of the airframe, The vertical frame on which the indicator light is supported is at least one of the left vertical frame and the right vertical frame.

3. A work machine according to claim 1 or 2.

4. The frame is a left vertical frame and a right vertical frame arranged side by side in the left-right direction of the aircraft; a horizontal frame connecting upper portions of the left vertical frame and the right vertical frame, The vertical frame on which the indicator lamp is supported is one of the left vertical frame and the right vertical frame, The indicator light is located below the horizontal frame.

3. A work machine according to claim 1 or 2.

5. The indicator light is disposed at a position offset to one side with respect to the vertical frame in the fore-and-aft direction of the aircraft.

3. A work machine according to claim 1 or 2.

6. The indicator light is disposed at a position offset to one side relative to the vertical frame in the left-right direction of the aircraft.

3. A work machine according to claim 1 or 2.

7. The indicator lamp is disposed at a diagonal position as viewed from the driver's seat with respect to the vertical frame in a plan view.

3. A work machine according to claim 1 or 2.

8. the airframe has a support portion that supports the frame so that the frame can change its posture between an upright posture and a lying posture, The indicator light is located above the support portion.

3. A work machine according to claim 1 or 2.

9. the vertical frame has a mounting portion for mounting a canopy disposed above the driver's seat, The indicator light is supported below the mounting portion on the vertical frame.

3. A work machine according to claim 1 or 2.

10. A status display unit that indicates the running status of the vehicle is supported on the vertical frame, The indicator light is located above the status display unit.

3. A work machine according to claim 1 or 2.

11. Further, a bracket is provided to support the indicator light. The bracket is attached to the vertical frame.

3. A work machine according to claim 1 or 2.

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