Work vehicle

Abstract

To provide an art which enables a quantum compass to be arranged properly in a work vehicle.SOLUTION: An exemplary work vehicle includes: a dashboard part provided at a front part of a cabin part; and a quantum compass provided at the dashboard part.SELECTED DRAWING: Figure 9

Description

[Technical Field]

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

[0002] Conventionally, work vehicles equipped with a function for acquiring vehicle position information for the purposes of autonomous driving, recording work information, or theft prevention have been known. Positioning satellites have conventionally been used to acquire vehicle position information. Patent Document 1 discloses a work vehicle equipped with a GNSS (Global Navigation Satellite System) antenna that acquires information (satellite information) from positioning satellites. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-129654 Summary of the Invention [Problem to be solved by the invention]

[0004] In a configuration that uses satellite information to obtain the vehicle's position information, the positioning antenna must be located in a position that facilitates communication with the satellite, which places restrictions on the placement of the positioning device. In this regard, if a quantum compass is used as a positioning device to obtain the vehicle's position information, communication with a satellite is not required, which is thought to increase the freedom in the placement of the positioning device. However, the operating environment of a work vehicle is harsher than that of a regular automobile, for example, there is a lot of dust and dirt, and vibrations during driving are likely to be large. In other words, when placing a quantum compass on a work vehicle, it is necessary to consider the harsh operating environment when devising a placement.

[0005] An object of the present invention is to provide a technology that enables a quantum compass to be appropriately arranged on a work vehicle. [Means for solving the problem]

[0006] An exemplary work vehicle of the present invention includes a dashboard section provided at the front of the passenger section, and a quantum compass provided in the dashboard section. [Effects of the Invention]

[0007] In accordance with the exemplary present invention, a quantum compass may be placed in an appropriate location on the work vehicle. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a side view showing a schematic configuration of a work vehicle; [Figure 2] FIG. 1 is a plan view showing a schematic configuration of a work vehicle; [Figure 3] FIG. 1 is a perspective view showing a schematic configuration of a boarding base that constitutes the boarding section. [Figure 4] FIG. 4 shows the seat section attached to the boarding base shown in FIG. 3. [Figure 5] FIG. 1 is a side view showing a schematic configuration of a boarding base that constitutes the boarding section. [Figure 6] FIG. 1 is a side view showing a schematic configuration of a work vehicle of another embodiment to which the present invention can be applied. [Figure 7] FIG. 7 is a perspective view showing a schematic configuration of a boarding base in the cabin-type work vehicle shown in FIG. [Figure 8] A longitudinal cross-sectional view showing the general configuration of the dashboard section [Figure 9] FIG. 1 is a diagram showing a first example of a quantum compass arrangement; [Figure 10A] 1 is a cross-sectional view showing a second embodiment of the quantum compass arrangement; [Figure 10B] FIG. 10 is a longitudinal cross-sectional view schematically illustrating a second embodiment of the quantum compass arrangement. [Figure 11] FIG. 10 is a diagram showing a third example of the quantum compass arrangement. [Figure 12] FIG. 10 is a diagram showing a fourth example of the quantum compass arrangement. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] The work vehicle according to an embodiment of the present invention is a tractor. However, this is merely an example. The work vehicle may be an agricultural work machine other than a tractor, such as a harvester such as a combine harvester, or a transplanter such as a rice transplanter. The work vehicle may also be a work machine other than an agricultural work machine, such as a work machine for civil engineering or construction work, or a snowplow.

[0011] In addition, directions are defined as follows in this specification. First, the direction in which a tractor serving as a work vehicle travels during work is defined as "forward," and the opposite direction is defined as "rearward." Furthermore, the right side of the tractor's direction of travel is defined as right, and the left side is defined as left. The direction perpendicular to the front-to-back and left-to-right directions of the tractor is defined as up-to-down. In this case, the direction of gravity is defined as down, and the opposite side is defined as up. Furthermore, the plane perpendicular to the up-to-down direction is defined as the horizontal plane, and the direction along the horizontal plane is defined as the horizontal direction. Note that the above directions are simply names used for the purpose of explanation and are not intended to limit the actual positional relationships or directions.

[0012] <1. Overview of the work vehicle> Fig. 1 is a side view showing the general configuration of a work vehicle 1 according to an embodiment of the present invention. Fig. 2 is a plan view showing the general configuration of a work vehicle 1 according to an embodiment of the present invention. As shown in Fig. 1, the work vehicle 1 comprises a vehicle body 2, wheels 3, a prime mover 4, and a power transmission unit 5.

[0013] As shown in Figures 1 and 2, the wheels 3 have front wheels 3a and rear wheels 3b. The front wheels 3a are arranged on the left and right sides of the front of the vehicle body 2. The rear wheels 3b are arranged on the left and right sides of the rear of the vehicle body 2. The vehicle body 2 is provided so that it can travel using the front wheels 3a and rear wheels 3b. In other words, the work vehicle 1 of this embodiment is a wheeled tractor. However, the work vehicle 1 is not limited to a wheeled tractor, and may also be a crawler-type tractor that travels using crawlers.

[0014] The prime mover 4 is disposed in the front of the vehicle body 2 and is covered by a hood 6. In this embodiment, the prime mover 4 is an engine. The engine may be, for example, a diesel engine, a gasoline engine, a hydrogen engine, or a gas engine. However, the prime mover 4 may be something other than an engine, such as a motor.

[0015] The power transmission unit 5 is disposed behind the prime mover 4. The power transmission unit 5 transmits the power of the prime mover 4 to the wheels 3. Specifically, the power of the prime mover 4 is transmitted to at least one of the front wheels 3a and the rear wheels 3b via the power transmission unit 5. In this embodiment, the power of the prime mover 4 is transmitted to the front wheels 3a and the rear wheels 3b via the power transmission unit 5. Specifically, the power transmission unit 5 has a transmission case 212 in which a transmission is disposed. In addition to or instead of the transmission case 212, the power transmission unit 5 may have at least one of a power transmission shaft, a gear, a pulley, a belt, a chain, a reducer, and a case that houses such power transmission elements, for example.

[0016] The vehicle body 2 has a base portion 21 to which the wheels 3 are attached, and a riding portion 22 supported by the base portion 21. In other words, the work vehicle 1 is equipped with the base portion 21 and the riding portion 22.

[0017] In detail, the base unit 21 has a base frame 211, a transmission case 212 included in the power transmission unit 5, a front axle 213, and a rear axle 214. The front axle 213 has a front wheel axle (not shown) to which the front wheels 3a are attached. The rear axle 214 has a rear wheel axle (not shown) to which the rear wheels 3b are attached. The transmission case 212 and the front axle 213 are attached to the base frame 211. The rear axle 214 is attached to the transmission case 212. The base frame 211 supports the prime mover 4.

[0018] The riding section 22 is the portion of the vehicle body 2 on which the driver (operator) rides, and is provided behind the prime mover 4. The riding section 22 is also provided above the power transmission section 5. The riding section 22 has a seat section 221, a steering section 222, and a dashboard section 223. In other words, the work vehicle 1 is equipped with the seat section 221, the steering section 222, and the dashboard section 223.

[0019] The seat section 221 is where the driver of the work vehicle 1 sits. The steering section 222 constitutes a device that allows the driver sitting in the seat section 221 to steer the work vehicle 1. More specifically, the steering section 222 has a steering wheel 222a and a steering column 222b. The steering wheel 222a is the part that is operated by the driver and is configured in a circular shape. The steering wheel 222a is rotatably supported by a steering shaft (not shown) that is arranged inside the steering column 222b that is located below the steering wheel 222a. By rotating the steering wheel 222a, the direction of the front wheels 3a can be changed.

[0020] The dashboard section 223 is provided at the front of the riding section 22. In detail, at least a portion of the dashboard section 223 is disposed in front of the steering column 222b. The dashboard section 223 is provided with a meter panel (instrument board) that visualizes values ​​measured by various instruments, including the speed of the work vehicle 1, and various levers, switches, etc. for operating the work vehicle 1.

[0021] Additionally, levers, pedals, etc. are arranged around the seat section 221 in the riding section 22 for operating the work vehicle 1 itself and a work implement (not shown) attached to the rear of the work vehicle 1. Furthermore, an operating section 224 used when causing the work vehicle 1 to travel automatically is arranged in front of the seat section 221 in the riding section 22. Note that automatic traveling means that at least steering is performed autonomously, with devices related to traveling being controlled by a control device (not shown). In automatic traveling, in addition to steering, for example, at least one of adjusting vehicle speed and performing work using a work implement may be performed autonomously.

[0022] In this embodiment, a ROPs frame 7 is provided behind the seat section 221. The ROPs frame 7 can protect the driver when the work vehicle 1 rolls over.

[0023] A work implement coupling section 8, which is configured, for example, by a three-point linkage mechanism, is provided at the rear of the vehicle body 2. The work implement coupling section 8 is provided so that a work implement can be detachably attached. Only one type of work implement may be attached to the work implement coupling section 8, but preferably multiple types are attached. Examples of work implements include cultivators, plows, fertilizer applicators, pesticide sprayers, harvesters, and reapers. A lifting device (not shown) having a hydraulic device such as a lifting cylinder is provided at the rear of the vehicle body 2. The lifting device raises and lowers the work implement coupling section 8, thereby raising and lowering the work implement attached to the work implement coupling section 8. Power generated by the prime mover 4 can be transmitted to the work implement via a power take-off shaft (PTO shaft; not shown) extending from the power transmission section 5 toward the rear of the vehicle body 2. In other words, the work implement can be operated by the prime mover 4. The work implement may be driven by a drive device separate from the prime mover 4.

[0024] <2. Composition of the boarding section> The configuration of the riding section 22 provided in the work vehicle 1 will be described in further detail. Fig. 3 is a perspective view showing the general configuration of the riding base 220 that constitutes the riding section 22. Fig. 4 is a diagram showing a state in which a seat section 221 is attached to the riding base 220 shown in Fig. 3. Fig. 5 is a side view showing the general configuration of the riding base 220 that constitutes the riding section 22.

[0025] The boarding base 220 is a base portion of the riding section 22. The above-mentioned seat section 221, steering section 222, dashboard section 223, etc. are arranged on the boarding base 220. As shown in FIGS. 3 to 5 , the boarding base 220 has a riding section frame 2201, a floor 2202, a riding section front wall 2203, a riding section rear wall 2204, and left and right riding section side walls 2205. In other words, the riding section 22 has the riding section frame 2201, the floor 2202, the riding section front wall 2203, the riding section rear wall 2204, and left and right riding section side walls 2205.

[0026] The riding section frame 2201 is a framework of the riding section 22. The floor 2202, the riding section front wall 2203, the riding section rear wall 2204, and the left and right riding section side walls 2205 are supported by the riding section frame 2201. The above-mentioned ROPS frame 7 is supported by the riding section frame 2201.

[0027] The floor 2202 forms the floor surface of the riding section 22. In other words, the floor 2202 forms the bottom wall of the riding section 22. The floor 2202 may be formed of a single member (floor member), but in this embodiment, it is formed of multiple members (floor members). In detail, the floor 2202 has a lower floor 2202a, an upper floor 2202b, and a connecting floor 2202c that connects the lower floor 2202a and the upper floor 2202b. The lower floor 2202a and the upper floor 2202b extend horizontally. The lower floor 2202a is positioned at a lower height position in the up-down direction than the upper floor 2202b. The connecting floor 2202c connects the rear end of the lower floor 2202a and the front end of the upper floor 2202b.

[0028] As shown in Fig. 4, the seat 221 is disposed on the upper floor 2202b. That is, the seat 221 is supported by the floor 2202. When driving the work vehicle 1, the driver sitting in the seat 221 places his or her feet on the lower floor 2202a to drive the work vehicle 1. A floor mat may be placed on the upper surface of the lower floor 2202a.

[0029] The riding section front wall 2203 is erected in the center in the left-right direction at the front end of the riding section 22. In this embodiment, the riding section front wall 2203 is, in detail, a partition wall that prevents high-temperature air inside the bonnet 6 from flowing into the riding section 22. In other words, the riding section front wall 2203 is a so-called air cut plate. However, the riding section front wall 2203 does not have to be an air cut plate. In other words, the riding section front wall 2203 may have a configuration that does not function as an air cut plate.

[0030] The riding section rear wall 2204 is arranged behind the seat section 221 so as to face the rear surface of the seat section 221. That is, the riding section 22 has the riding section rear wall 2204 arranged behind the seat section 221. In detail, the riding section rear wall 2204 extends upward from the rear end of the upper floor 2202b. In this embodiment, the riding section rear wall 2204 is made of the same material as the material that makes up the upper floor 2202b, but it may be made of a material separate from the upper floor 2202b. The left and right riding section side walls 2205 are arranged on the left and right of the upper floor 2202b. The left and right riding section side walls 2205 are arranged so as to sandwich the seat section 221 arranged on the upper floor 2202b in the left-right direction.

[0031] As shown in FIG. 5 , the boarding base 220 configured as described above is disposed on the base portion 21 via the vibration-isolating member 10. That is, the base portion 21 supports the boarding portion 22 via the vibration-isolating member 10. The vibration-isolating member 10 is, for example, a rubber member. In this embodiment, a vibration-isolating rubber (vibration-isolating member) 10 is disposed between (in the vertical direction) the base frame 211 constituting the base portion 21 and the boarding portion frame 2201 supported from below by the base frame 211. More specifically, the vibration-isolating rubber 10 is disposed between the base frame 211 and a mount portion 2201c provided on the lower part of the boarding portion frame 2201. The vibration-isolating effect of the vibration-isolating member 10 can suppress transmission of vibrations (traveling vibrations) generated as the work vehicle 1 travels to the boarding portion 22. That is, the vibration-isolating effect of the vibration-isolating member 10 can suppress shaking of electrical components and the like disposed on the boarding portion 22 due to traveling vibrations.

[0032] <3. Quantum Compass> [3-1. Overview] As described above, in this embodiment, the work vehicle 1 is configured to be capable of autonomous driving. To enable the work vehicle 1 to drive autonomously, position information of the vehicle (host vehicle) is required. To enable the host vehicle's position information to be acquired, the work vehicle 1 of this embodiment is equipped with a quantum compass 11 (see FIG. 9, etc., described below). Note that in this embodiment, the work vehicle 1 is configured to be equipped with a quantum compass 11 for acquiring position information in order to enable autonomous driving, but this is merely an example. For example, the work vehicle 1 may be equipped with a quantum compass that enables the acquisition of position information for other reasons, such as recording work information by the work vehicle 1 or for theft prevention.

[0033] The quantum compass 11 is an electrically powered electrical component capable of measuring latitude and longitude. The quantum compass 11 is attached to the work vehicle 1 as an electrical component. The quantum compass 11 is not subject to restrictions on placement related to communication, as is the case when satellite information is used to acquire location information. For example, the quantum compass 11 can be placed in a location other than the top of the work vehicle 1, and can also be placed inside the vehicle. However, because the quantum compass 11 is an electrical component, it is preferable that it be placed in a location that is not exposed to, for example, rain, mud, exhaust fumes, etc. Taking these points into consideration, in this embodiment, the placement of the quantum compass 11 has been devised. Details of the placement of the quantum compass 11 will be described below using several examples.

[0034] In this embodiment, the work vehicle 1 is provided with one quantum compass 11. However, the work vehicle 1 may be provided with multiple quantum compasses 11. For example, two quantum compasses 11 may be arranged symmetrically front to back or left to right, and multiple quantum compasses 11 may be used for attitude control of the work vehicle 1.

[0035] Furthermore, the arrangement of the quantum compass 11 described below is not limited to a work vehicle 1 in which the driver's riding space formed by the riding section 22 is open to the outside, as in this embodiment, but can also be applied to a work vehicle 1A in which the riding section 22A is configured as a cabin type, as shown in Fig. 6. Note that Fig. 6 is a side view showing the general configuration of another form of work vehicle 1A to which the present invention can be applied. Furthermore, in a cabin-type work vehicle 1A, the driver's riding space formed by the riding section 22A is a room type space that is partitioned off from the outside.

[0036] Similar to the work vehicle 1 described above, the work vehicle 1A having a cabin-type riding section 22A also comprises a vehicle body 2, wheels 3, a prime mover 4, and a power transmission section 5. The vehicle body 2 has a base section 21 including a transmission case and the like, and a riding section (cabin) 22A supported by the base section 21. Although hidden by the outer wall of the riding section 22A in FIG. 6 and not visible, the riding section 22A is provided with a seat section 221, a steering section 222, and a dashboard section 223 in the same configuration as in the work vehicle 1 described above. Similar to the work vehicle 1 described above, the riding section 22A is supported by the base section 21 via vibration-isolating members 10 (see FIG. 5).

[0037] Figure 7 is a perspective view showing the general configuration of the boarding base 220A in the cabin-type work vehicle 1A shown in Figure 6. Note that in Figure 7, for the purpose of facilitating understanding, a seat section 221 is attached to the boarding base 220A. As can be seen by comparing Figure 7 with the above-mentioned Figure 4, the boarding base 220A of the cabin-type work vehicle 1A also has a boarding section frame 2201A, a floor 2202A, a boarding section front wall 2203A, a boarding section rear wall 2204A, and left and right boarding section side walls 2205A, just like in the case of the above-mentioned work vehicle 1.

[0038] As can be seen from the above explanation, the cabin-type work vehicle 1A has a configuration similar to that of the work vehicle 1 of this embodiment. For this reason, it should be noted in advance that the arrangement of the quantum compass 11 described below is applicable not only to the work vehicle 1 of this embodiment, but also to the cabin-type work vehicle 1A. Furthermore, in the following, unless there is a particular need for such explanation, explanations related to the cabin-type work vehicle 1A will be omitted.

[0039] [3-2. Details of the quantum compass layout] FIG. 8 is a longitudinal cross-sectional view showing a schematic configuration of the dashboard section 223. For ease of understanding, FIG. 8 also shows the hood 6 and the floor 2202 in addition to the dashboard section 223. As shown in FIG. 8, the dashboard section 223 has a cover member 2231 and a passenger section front wall 2203. As described above, the passenger section front wall 2203 is an air cut plate as an example in this embodiment. For this reason, hereinafter, the passenger section front wall 2203 will be referred to as the air cut plate 2203. hereinafter, the cover member 2231 will be referred to as the dash cover 2231. The dash cover 2231 may be composed of one member or multiple members.

[0040] The air cut-off plate 2203 forms the front part of the dashboard section 223. The dash cover 2231 is disposed behind the air cut-off plate 2203. The dash cover 2231 is box-shaped and opens forward, and is disposed so as to cover at least a part of the rear surface of the air cut-off plate 2203. In the example shown in FIG. 8, the dash cover 2231 covers a part of the rear surface of the air cut-off plate 2203. The lower part of the rear surface of the air cut-off plate 2203 is not covered by the dash cover 2231 and is exposed.

[0041] The dashboard section 223, which is composed of the dash cover 2231 and the air cut plate 2203, has an internal space 223a. In the internal space 223a, for example, a meter panel, various wires, fuses, etc. (none of which are shown) are arranged. In addition, openings are appropriately provided on the rear surface of the dash cover 2231 to expose the meter panel, switches, etc. of the dashboard section 223. The dash cover 2231 is detachably attached to the air cut plate 2203 so that maintenance of parts arranged inside the dashboard section 223 can be easily performed.

[0042] Detailed examples are disclosed in the drawings from FIG. 9 onwards, but the quantum compass 11 is provided in the dashboard section 223. The dashboard section 223 is included in the riding section 22. As described above, the riding section 22 is supported on the base section 21 via the vibration-isolating member 10 (see FIG. 5) and has a vibration-isolating structure. In other words, the quantum compass 11 arranged in the dashboard section 223 is arranged in a part of the work vehicle 1 that has a vibration-isolating structure. This makes it possible to prevent a decrease in the accuracy of position measurement by the quantum compass 11 due to vibrations caused by the work vehicle 1 while traveling.

[0043] Furthermore, the dashboard unit 223 is disposed in a position surrounded by the front, rear, left, and right wheels 3 (four wheels 3) in the work vehicle 1. For this reason, by disposing the quantum compass 11 in the dashboard unit 223, the quantum compass 11 can be disposed in a position surrounded by the four wheels 3. That is, according to the configuration of this embodiment, the quantum compass 11 can be disposed as close as possible to the control point during autonomous driving, and autonomous driving can be controlled by reducing errors in vehicle position measurement using the quantum compass 11. The control point during autonomous driving is, for example, the center position of the four wheels 3.

[0044] Furthermore, in the work vehicle 1, the dashboard unit 223 is often placed in the center in the left-right direction of the vehicle body 2. For this reason, if the quantum compass 11 is placed in the dashboard unit 223, it becomes possible to acquire position information for the center in the left-right direction of the vehicle body 2. As a result, it is possible to save the effort of correcting the position information obtained by the quantum compass 11 and eliminate error factors that occur during correction. As can be seen from the above explanation, it is preferable that the quantum compass 11 be placed on the bisector (center line) CL (see FIG. 2) that bisects the work vehicle 1 in the left-right direction in a plan view.

[0045] Furthermore, in a configuration in which the quantum compass 11 is placed on the dashboard section 223, there is no need to place a positioning device on the upper end of the work vehicle 1 as is the case when positioning is performed using conventional satellite information, so the height of the work vehicle 1 can be reduced.

[0046] The quantum compass 11 is preferably disposed inside the dashboard section 223 (interior space 223a). With this configuration, the quantum compass 11 can be disposed in a position where it is less likely to be exposed to rain or mud, and the quantum compass 11, which is an electronic component, can be protected. Furthermore, with this configuration, the quantum compass 11 can be disposed in a position in the vehicle where it is less likely to be touched by people, and it is possible to prevent a person (such as the driver) riding in the riding section 22 from accidentally touching the quantum compass 11. Furthermore, with this configuration, the quantum compass 11 is disposed in a position where it is less likely to be seen from the outside, and therefore it is possible to suppress deterioration of the interior design of the riding section 22. Furthermore, with this configuration, it is possible to prevent the quantum compass 11 from obstructing the driver's view.

[0047] As described above, the dash cover 2231 constituting the dashboard section 223 is removable. Therefore, even if the quantum compass 11 is placed inside the dashboard section 223, the dash cover 2231 can be removed to easily perform maintenance on the quantum compass 11.

[0048] Furthermore, the quantum compass 11 provided in the dashboard section 223 may be arranged outside the dashboard section 223, rather than inside the dashboard section 223. In such a configuration, the quantum compass 11 can be protected from rainwater, dust, and the like by providing a protective cover that covers the quantum compass 11. The protective cover is preferably a waterproof cover that has been waterproofed. Note that in a configuration in which the quantum compass 11 is provided in the dashboard section 223 of a cabin-type work vehicle 1A as shown in FIG. 6, the quantum compass 11 is not exposed to rainwater, etc. even if it is arranged outside the dashboard section 223, so a protective cover is not necessarily required.

[0049] The layout structure of the quantum compass 11 provided in the dashboard section 223 will be described below with reference to a specific example.

[0050] (3-2-1. First Example) 9 is a diagram schematically showing a first embodiment of the arrangement of quantum compasses 11. FIG. 9 is a vertical cross-sectional view similar to FIG.

[0051] 9, the quantum compass 11 is supported by a dash cover (cover member) 2231. By configuring it to be supported by the dash cover 2231, it is possible to eliminate the need to provide a new support structure for supporting the quantum compass 11. This makes it possible to keep the manufacturing costs of the work vehicle 1 low.

[0052] Specifically, the quantum compass 11 is attached to the inner surface of the dash cover 2231. In the example shown in Fig. 9, the quantum compass 11 is disposed in the upper part of the interior space 223a, but this position may be changed as appropriate. In other words, the quantum compass 11 may be attached to the inner surface of the front part or the inner surface of the lower part, instead of the inner surface of the upper part of the dash cover 2231. The method of attaching the quantum compass 11 to the dash cover 2231 is not particularly limited, but may be a method using a fastener such as a bolt, or adhesive, etc.

[0053] The quantum compass 11 may be attached to the outer surface of the dash cover 2231. In this case, a protective cover may be provided as appropriate to cover the quantum compass 11. The protective cover may be attached to the dash cover 2231.

[0054] (3-2-2. Second Example) Fig. 10A is a cross-sectional view schematically showing a second embodiment of the arrangement of quantum compasses 11. Fig. 10B is a vertical-sectional view schematically showing a second embodiment of the arrangement of quantum compasses 11.

[0055] 10A and 10B, in the second embodiment, the quantum compass 11 is supported by a dash cover (cover member) 2231 via a support member 12. By configuring the quantum compass 11 to be attached to the dash cover 2231 indirectly via the support member 12 rather than directly to the dash cover 2231, it is possible to increase the degree of freedom in the placement of the quantum compass 11 relative to the dash cover 2231. In addition, the support strength of the quantum compass 11 can be improved.

[0056] In the second embodiment, the support member 12 has a beam-like structure that extends in the left-right direction in the internal space 223a (see FIG. 8). The left end of the support member 12 is attached to the left side wall of the dash cover 2231. The right end of the support member 12 is attached to the right side wall of the dash cover 2231. The method of attaching the support member 12 to the dash cover 2231 is not particularly limited, but may be a method using fasteners such as bolts, or adhesive bonding.

[0057] The quantum compass 11 is attached to the upper surface of the support member 12. The method of attaching the quantum compass 11 to the support member 12 is not particularly limited, and may include a method using fasteners such as bolts, adhesive bonding, etc. In the example shown in FIGS. 10A and 10B, the quantum compass 11 is attached to the upper surface of the support member 12, but it may also be attached to the lower surface of the support member 12. Furthermore, the support member 12 does not have to have a beam-type structure, and its configuration may be modified as appropriate. For example, the support member 12 may be a plate-shaped or arch-shaped member or the like arranged between the quantum compass 11 and the wall surface that constitutes the dash cover 2231.

[0058] The quantum compass 11 supported by the dash cover 2231 via a support member may also be disposed on the outer surface of the dash cover 2231.

[0059] (3-2-3. Third Example) 11 is a diagram schematically illustrating a third embodiment of the arrangement of quantum compasses 11. FIG. 11 is a vertical cross-sectional view similar to FIG.

[0060] 11, the quantum compass 11 is supported by an air cut plate 2203. By configuring it to be supported by the air cut plate 2203, it is possible to eliminate the need to provide a new support structure for supporting the quantum compass 11. This allows the manufacturing costs of the work vehicle 1 to be kept low.

[0061] Specifically, the quantum compass 11 is attached to the rear surface of the air cut plate 2203. The method of attaching the quantum compass 11 to the air cut plate 2203 is not particularly limited, but may be a method using a fastener such as a bolt, or adhesive bonding. In the example shown in Fig. 11, the quantum compass 11 is disposed on the upper rear surface of the air cut plate 2203. However, the attachment position of the quantum compass 11 to the rear surface of the air cut plate 2203 may be changed as appropriate.

[0062] In this example, the quantum compass 11 is disposed on the upper rear surface of the air cut plate 2203, and is thereby disposed inside the dashboard section 223 (internal space 223a). However, the quantum compass 11 may also be disposed on the lower rear surface of the air cut plate 2203, and disposed outside rather than inside the dashboard section 223. Note that when the quantum compass 11 is disposed outside the dashboard section 223, an appropriate protective cover may be provided.

[0063] (3-2-4. Fourth Example) 12 is a diagram schematically showing a fourth embodiment of the arrangement of quantum compasses 11. FIG. 12 is a vertical cross-sectional view similar to FIG.

[0064] 12, in the fourth embodiment, the quantum compass 11 is supported by the air cut-off plate 2203 via a support member 12A. By configuring the quantum compass 11 so that it is indirectly attached to the air cut-off plate 2203 via the support member 12A rather than directly to the air cut-off plate 2203, it is possible to increase the degree of freedom in the placement of the quantum compass 11 relative to the air cut-off plate 2203. In addition, the support strength of the quantum compass 11 can be improved.

[0065] In the fourth embodiment, the support member 12A has an arch shape including a flat plate portion 121 that extends in the vertical direction and to which the quantum compass 11 is attached, and upper and lower legs 122 that attach the flat plate portion 121 to the air-cutting plate 2203. The quantum compass 11 may be attached to the flat plate portion 121 by a method using a fastener such as a bolt, or by adhesive bonding. The legs 122 extend forward from the flat plate portion 121 and are attached to the air-cutting plate 2203 by a fastener such as a bolt (not shown).

[0066] However, the shape of the support member 12A may be different from this configuration and may be a simple flat plate, etc. Furthermore, the support member 12A may not be attached to the air cut plate 2203 using a fixture, but may be integrated with the air cut plate 2203 by welding or the like.

[0067] <4. Things to keep in mind> Various modifications can be made to the various technical features disclosed in this specification without departing from the spirit of the technical creation. Furthermore, multiple embodiments, examples, and modifications shown in this specification can be combined to the extent possible.

[0068] <5. Notes> An exemplary work vehicle of the present invention may have a configuration (first configuration) that includes a dashboard section provided at the front of the passenger section, and a quantum compass provided in the dashboard section.

[0069] In the work vehicle of the first configuration, the dashboard section may have a cover member, and the quantum compass may be supported by the cover member (second configuration).

[0070] In the work vehicle of the second configuration, the quantum compass may be configured (third configuration) to be supported by the cover member via a support member.

[0071] In the work vehicle of the first configuration, the dashboard section may have a front wall of the riding section at the front, and the quantum compass may be supported by the front wall of the riding section (fourth configuration).

[0072] In the work vehicle of the fourth configuration, the quantum compass may be supported on the front wall of the riding section via a support member (fifth configuration).

[0073] In the work vehicle of any one of the first to fifth configurations described above, the quantum compass may be arranged inside the dashboard section (sixth configuration).

[0074] The work vehicle of any one of the first to sixth configurations may be configured (seventh configuration) to include a base portion that supports the riding portion via a vibration-isolating member. [Explanation of symbols]

[0075] 1, 1A...Work vehicle 10. Vibration-isolating member 11. Quantum Compass 12, 12A... Support member 21 Base 22, 22A... Boarding area 223 Dashboard 2203 Front wall of boarding area (air cut plate) 2231 Dash cover (cover part)

Claims

1. A dashboard section provided in front of the boarding section; a quantum compass provided in the dashboard section; A work vehicle equipped with:

2. The dashboard portion has a cover member, The work vehicle according to claim 1 , wherein the quantum compass is supported by the cover member.

3. The work vehicle according to claim 2 , wherein the quantum compass is supported on the cover member via a support member.

4. The dashboard section has a front wall of a boarding section at a front portion, The work vehicle according to claim 1 , wherein the quantum compass is supported on the front wall of the riding section.

5. The work vehicle according to claim 4 , wherein the quantum compass is supported on the front wall of the riding section via a support member.

6. The work vehicle according to claim 1 , wherein the quantum compass is disposed inside the dashboard portion.

7. The work vehicle according to claim 1 , further comprising a base portion that supports the riding portion via a vibration-isolating member.

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