Work vehicle

Abstract

To provide a work vehicle capable of preferably assembling a meter panel and a frame member.SOLUTION: An operation part includes a meter panel 25, and a frame member 26 surrounding the periphery of the meter panel 25. The meter panel 25 is attached to an attached part 36 provided in the frame member 26 via a boss member 39.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a work vehicle such as a tractor or a rice transplanter. [Background technology]

[0002] A work vehicle having the above configuration is equipped with a meter panel that displays various information necessary for steering to the driver. The meter panel is surrounded by a frame member. Conventionally, the meter panel has been fixedly attached to a frame on the vehicle body, and a cover member serving as a frame member has been positioned above the meter panel and fixed to the frame on the vehicle body (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-152888 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional configuration described above, the meter panel and the cover member are fixed to the frame separately, which can lead to a slight misalignment between the meter panel and the cover member, resulting in a gap between them. To address this issue, a solution was proposed to prevent misalignment by connecting and fixing the frame member to the meter panel. Specifically, a mounting portion protruding from the frame member covering the outer surface of the meter panel toward the back of the meter panel is provided, and the meter panel is fixed to the mounting portion.

[0005] However, in the above-described improved configuration, the mounting location of the meter panel is separated from the frame member, so the mounting portion needs to protrude far toward the back of the meter panel, making it difficult to integrally form the mounting portion with the frame member. In other words, if the mounting portion protrudes far toward the back of the meter panel, the surface of the frame member may be significantly recessed during molding, resulting in an undesirable appearance.

[0006] An object of the present invention is to provide a work vehicle in which the meter panel and the frame member can be assembled in a good manner. [Means for solving the problem]

[0007] The characteristic configuration of the work vehicle of the present invention is that the driver's section is provided with a meter panel and a frame member surrounding the meter panel, and the meter panel is attached to an attachment portion provided on the frame member via a boss member.

[0008] According to the present invention, since the meter panel is attached to the mounting portion of the frame member via the boss member, even if the mounting location of the meter panel is separated from the frame member, the mounting portion does not need to protrude farther than necessary toward the rear of the meter panel and can be short. As a result, the amount of protrusion of the mounting portion is small, and the meter panel and the frame member can be securely fixed together without causing problems such as large dents in the surface of the frame member during molding.

[0009] Therefore, it is possible to provide a work vehicle in which the meter panel and the frame member can be satisfactorily assembled without misalignment occurring.

[0010] In the present invention, it is preferable that the mounting portions are provided at locations corresponding to the upper and lower parts of the meter panel, the meter panel is directly mounted to the mounting portion corresponding to the lower part of the meter panel, and the meter panel is mounted to the mounting portion corresponding to the upper part of the meter panel via the boss member.

[0011] According to this configuration, the meter panel and the frame member are attached to the upper and lower portions of the meter panel, respectively, allowing for excellent attachment without the risk of creating gaps or the like between the meter panel and the frame member around the entire periphery. The meter panel is then attached directly to the attachment portion corresponding to the lower portion. The portion of the frame member corresponding to the lower portion of the meter panel has a large, flat surface with few other protrusions nearby, allowing for a lateral sliding configuration to be adopted to avoid creating dents in the surface during molding, enabling a long protrusion.

[0012] However, the area of ​​the frame member corresponding to the top of the meter panel is small and there is a high possibility of other protrusions being nearby, making it a low-profile mounting area. Therefore, the meter panel is mounted via a boss member. This configuration allows for good assembly of the meter panel and the frame member on both the top and bottom.

[0013] In the present invention, it is preferable that the boss member is fixed to the mounting portion, and the meter panel is fixed by screwing a screw into the boss member.

[0014] According to this configuration, the boss member is fixed to the frame member in advance, and the meter panel and the frame member can be fixed by screwing the screw into the boss member. Therefore, when assembling the meter panel and the frame member, the work is easy to perform without the trouble of attaching the boss member.

[0015] In the present invention, it is preferable that the boss member is fixed to the mounting portion by a fitting structure in which tapered shapes fit together.

[0016] According to this configuration, the tapered shapes fit together, so the boss member can be attached by strongly driving it into the attachment portion.

[0017] In the present invention, it is preferable that the boss member is fixed to the mounting portion by an adhesive.

[0018] Possible configurations for fixing the boss member to the mounting part include a linking structure such as screw fixing between flanges, or a fixing structure that holds the position by simply fitting the parts together, etc. However, such configurations have disadvantages such as being complicated and not providing sufficient fixation.

[0019] However, with this configuration, it is possible to reliably fix the boss member to the mounting portion with a simple configuration.

[0020] In the present invention, it is preferable that a reinforcing rib is formed on the outer periphery of the attached portion, and that an engagement groove into which the rib is engaged is formed in the boss member.

[0021] According to this configuration, the engagement groove formed in the boss member engages with a rib formed on the outer periphery of the attached portion, thereby preventing the boss member from rotating and coming off the attached portion due to the rotational operating force of the screw when the screw is screwed into the boss member. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is an overall side view of a tractor. [Figure 2] FIG. 2 is a side view showing a support structure for the meter panel. [Figure 3] FIG. 2 is a plan view showing a support structure for the meter panel. [Figure 4] FIG. 2 is an exploded perspective view showing the meter panel mounting structure. [Figure 5] FIG. 2 is an exploded perspective view showing the meter panel mounting structure. DETAILED DESCRIPTION OF THE INVENTION

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are provided to illustrate, but are not to be construed as limiting the present invention.

[0024] Figure 1 shows a tractor as an example of a work vehicle according to the present invention. In the following explanation, unless otherwise specified, the direction of arrow F in the figure will be referred to as "front," the direction of arrow B as "rear," the direction of arrow U as "up," and the direction of arrow D as "down."

[0025] [Overall structure] Fig. 1 is a side view showing the entirety of a tractor, which is an example of a work vehicle according to an embodiment of the present invention. As shown in this figure, the tractor has a body 1 on which left and right front wheels 2 are mounted so as to be steerable and drivable, and left and right rear wheels 3 are mounted so as to be drivable. A motor unit 6 having an engine 5 is mounted inside a hood 4 at the front of the body 1, and a driver's unit 7 is provided at the rear of the body 1.

[0026] The vehicle body 1 has a monocoque structure including an engine mounting frame 9 supported by the front wheels 2, an engine 5, a transmission case 10 whose front end is connected to the rear of the engine 5, a hydrostatic continuously variable transmission 11 for power output whose front end is connected to the rear end of the transmission case 10, and a transmission case 12 whose front end is connected to the rear end of the continuously variable transmission 11. A link mechanism 14 having a pair of left and right lift arms 13 that can be swung up and down is provided at the rear of the transmission case 12. A rotary tiller 15, which is an example of a working implement, is connected to the link mechanism 14 so that it can be raised and lowered. The working implement is not limited to the rotary tiller 15, but various other working implements such as a plow or a chemical sprayer can be attached.

[0027] Although not shown, the power plant 6 is equipped with various devices related to the engine 5, such as an air cleaner and a radiator, in addition to the engine 5. A fuel tank 16 is provided on the rear side of the power plant 6. The area where the fuel tank 16 is provided is separated from the power plant 6 by a heat shield plate 17 for heat insulation.

[0028] The driver's section 7 is equipped with various operating tools such as a driver's seat 18, a steering wheel 19, a main speed change lever 20, a lift lever 21 for raising and lowering the work equipment, a shuttle lever 22 for switching between forward and reverse travel, and various pedals. The main speed change lever 20 is disposed in front of the left rear wheel fender 23 of the left and right rear wheel fenders 23. The shuttle lever 22 is mounted on the left side of a handle post 24 to which the steering wheel 19 is attached.

[0029] On the front side of the handle post 24 of the driver's section 7, there are provided a meter panel 25 that displays various information for steering operations, a frame member 26 that surrounds the meter panel 25, and a cover member 27 that widely covers the outer periphery and sides of the meter panel 25.

[0030] 2 and 3, the meter panel 25 is fixed to a frame member 26. The frame member 26, with the meter panel 25 fixed thereto, is attached and fixed to a support member 28 extending from the transmission case 10. The support member 28 is formed in a rectangular shape in a front view so as to surround the outer periphery of the fuel tank 16, and its lower end is fixed to the transmission case 10.

[0031] A front-rear extension portion 29 is provided, extending rearward from the left-right central portion of the upper portion of the support member 28. The rear end portion of the front-rear extension portion 29 is shaped to bend downward along the underside of the meter panel 25. An upper arm portion 30 that is generally U-shaped in plan view is provided at the front-rear intermediate portion of the front-rear extension portion 29. A lower arm portion 31 that is generally U-shaped in plan view is provided at the front lower end portion of the front-rear extension portion 29.

[0032] Frame member 26 is made of a synthetic resin material such as ABS resin, and is formed by molding the synthetic resin material in a mold. Screw mounting portions 32 are formed on both the left and right sides of the upper part of the rear surface side of frame member 26 (the side on which meter panel 25 is attached), and screw mounting portions 33 are formed on both the left and right sides of the lower part of the rear surface side of frame member 26.

[0033] The upper left and right screw mounting portions 32 are connected to the left and right sides of the upper arm portion 30 by horizontal screws 34, and the lower left and right screw mounting portions 33 are connected to the left and right sides of the lower arm portion 31 by horizontal screws 34. Therefore, the frame member 26 is supported by the transmission case 10.

[0034] After the meter panel 25 and the frame member 26 are attached, the cover member 27 is placed over them from above and connected and fixed to each of the left and right vertically extending portions 28a of the support member 28 at two locations, one above the other, by horizontal screws 35.

[0035] [Meter panel mounting structure] The mounting structure of the meter panel 25 will now be described. 4 and 5, the meter panel 25 is attached to mounting portions 36 provided on the frame member 26. Mounting portions 36 are formed on both the left and right sides of the upper portion of the rear surface of the frame member 26, and mounting portions 36 are formed on both the left and right sides of the lower portion of the rear surface of the frame member 26. Therefore, a total of four mounting portions 36 are provided at locations corresponding to the upper and lower portions of the meter panel 25. The meter panel 25 is attached to the frame member 26 by fastening mounting portions 37 of the meter panel 25 to the four mounting portions 36 with four longitudinal screws 38.

[0036] The meter panel 25 is directly attached to the attachment portion 36a of the attachment portion 36, which corresponds to the lower part of the meter panel 25, and the meter panel 25 is attached to the attachment portion 36b, which corresponds to the upper part of the meter panel 25, via a boss member 39.

[0037] The mounting portion 37, which is the mounting location of the meter panel 25, is located at a position closer to the back than the outer surface of the meter panel 25. In the assembled state, the frame member 26 needs to be aligned with the outer surface of the meter panel 25. As a result, the mounting portion 37 of the meter panel 25 is spaced apart from the position on the frame member 26 that corresponds to the outer surface of the meter panel 25. Therefore, the mounted portion 36 needs to be protruded a long distance toward the back of the meter panel 25.

[0038] As shown in Figure 4, the lower part of frame member 26 has a large, flat surface with no other protrusions nearby, making it possible to use a slide core method to avoid creating dents in the surface during molding. The slide core method is a well-known configuration and will not be described here, but by using the slide core method, mounting portion 36a corresponding to the lower part of meter panel 25 can be molded as a thin protrusion even if it protrudes long.

[0039] On the other hand, the area of ​​the frame member 26 corresponding to the upper part of the meter panel 25 is small and the screw mounting portion 32 is located nearby, so the slide core method cannot be used, and if the mounting portion 36b were to protrude far toward the back of the meter panel 25, it would not be possible to mold it as a thin protrusion, but would instead have a thick structure, which would create a depression in the surface, making it impossible to protrude far. As a result, as shown in Figure 5, the mounting portion 36a is formed integrally with the low-profile mounting portion 36a.

[0040] Therefore, as shown in Figure 5, the meter panel 25 is attached to the left and right mounting portions 36b formed on the upper part of the frame member 26, i.e., the mounting portions 36b corresponding to the upper part of the meter panel 25, via boss members 39.

[0041] The boss member 39 is fixed to the mounting portion 36b, and the meter panel 25 is fixed by threading a longitudinal screw 38 into the boss member 39. The boss member 39 is fixed to the mounting portion 36b by a fitting structure of the tapered shapes. Furthermore, the boss member 39 is fixed to the mounting portion 36b with an adhesive. An impact-resistant adhesive is used as the adhesive.

[0042] More specifically, the mounting portion 36b, which protrudes in a generally rod-like shape from the main body of the frame member 26, is integrally molded from a resin material and provided on the frame member 26. The mounting portion 36b is formed in a generally cylindrical shape, with a tapered outer periphery that becomes slightly smaller in diameter toward the tip. An engagement recess 41 is formed at the tip of the mounting portion 36b, into which an inner protrusion 40 formed on the boss member 39 fits. The engagement recess 41 has a generally circular cross section, and its inner surface is formed with a plurality of grooves 42 that protrude radially outward at appropriate intervals in the circumferential direction. Reinforcing ribs 43 are formed on both the top and bottom of the outer periphery of the mounting portion 36b, extending radially.

[0043] Boss member 39 is made of a synthetic resin material such as ABS resin, and is formed by molding the synthetic resin material in a mold. Boss member 39 has a large diameter portion 39a and a small diameter portion 39b. A small diameter hole portion into which a longitudinal screw 38 for installation is formed is formed in small diameter portion 39b. The hole portion has a smaller diameter than the thread portion of longitudinal screw 38, and is configured to function as a tapping screw so that when longitudinal screw 38 is threaded into it, it is tightened and fixed.

[0044] A recess 44 into which the mounted portion 36b fits is formed in the large diameter portion 39a of the boss member 39, and the large diameter portion 39a is cylindrical. The inner peripheral surface of the recess 44 is tapered so that the diameter becomes slightly larger toward the outer end portion to correspond to the tapered shape of the outer periphery of the mounted portion 36b.

[0045] An inner protrusion 40 that fits into an engaging recess 41 formed in the mounted portion 36b is formed inside the recessed portion 44 of the boss member 39. The inner protrusion 40 has the same cross-sectional shape as the engaging recess 41, which has a plurality of grooves 42, so that it fits snugly into the engaging recess 41.

[0046] An engagement groove 45 is formed in the large diameter portion 39a of the boss member 39, into which a rib 43 formed on the outer periphery of the mounted portion 36b engages. The engagement groove 45 is provided in a state in which it extends from the end of the large diameter portion 39a on the mounted portion side toward the small diameter portion side. When the boss member 39 is attached to the mounted portion 36b, the rib 43 engages with the engagement groove 45. The engagement of the rib 43 with the engagement groove 45 prevents the boss member 39 from rotating in the circumferential direction when the longitudinal screws 38 are tightened and fixed.

[0047] By fitting the large diameter portion 39a of the boss member 39 onto the mounting portion 36b so that it fits over it and then firmly pressing it in, the tapered shapes fit together and the boss member 39 is fixed in place. Furthermore, an impact-resistant adhesive is applied between the large diameter portion 39a of the boss member 39 and the mounting portion 36b, thereby fixing the boss member 39 to the mounting portion 36b. With the boss member 39 fixed to the mounting portion 36b in this manner, the longitudinal screw 38 is threaded into the small diameter portion 39b of the boss member 39 through the mounting portion 37 of the meter panel 25, thereby fixing the meter panel 25 in place.

[0048] [Another embodiment] (1) In the above embodiment, the meter panel 25 is directly attached to the attachment portion 36a corresponding to the lower part of the meter panel 25, and the meter panel 25 is attached to the attachment portion 36b corresponding to the upper part of the meter panel 25 via the boss member 39. However, instead of this configuration, the meter panel 25 may be attached to all of the attachment portions 36 corresponding to the upper and lower parts of the meter panel 25 via the boss member 39.

[0049] (2) In the above embodiment, the boss member 39 is fixed to the mounting portion 36b, and the meter panel 25 is fixed by threading the screw 38 into the boss member 39. However, instead of this configuration, the boss member 39 may be attached to the mounting portion 36b, and a long screw may be used to pass through the boss member 39 and thread it into the mounting portion.

[0050] (3) In the above embodiment, both a configuration in which the boss member 39 is fixed to the mounting portion 36b by a fitting structure between tapered shapes and a configuration in which it is fixed using an adhesive are adopted, but either one of these configurations may be adopted, or it may be fixed by a fixing structure other than these configurations.

[0051] (4) In the above embodiment, a reinforcing rib 43 is formed on the outer periphery of the mounting portion 36b, and an engagement groove 45 into which the rib 43 engages is formed in the boss member 39. However, instead of this configuration, the anti-rotation structure formed by the rib 43 and the engagement groove 45 may not be provided as long as the boss member 39 and the mounting portion 36b are firmly fixed together. [Industrial Applicability]

[0052] The present invention is not limited to tractors, but can also be applied to various types of work vehicles such as rice transplanters, combine harvesters, and construction machinery. [Explanation of symbols]

[0053] 25 Meter panel 26 Frame members 36 Mounting part 39 Boss member 43 Ribs 45 Engagement groove

Claims

1. The driving section includes a meter panel and a frame member surrounding the meter panel, The work vehicle has the meter panel attached to an attachment portion provided on the frame member via a boss member.

2. the mounting portions are provided at positions corresponding to the upper and lower portions of the meter panel, The meter panel is directly attached to the attachment portion corresponding to the lower portion of the meter panel, 2. The work vehicle according to claim 1, wherein the meter panel is attached to the attachment portion corresponding to an upper portion of the meter panel via the boss member.

3. the boss member is fixed to the mounting portion, 2. The work vehicle according to claim 1, wherein the meter panel is fixed by threading a screw into the boss member.

4. 4. A work vehicle according to claim 3, wherein the boss member is fixed to the mounting portion by a fitting structure of tapered shapes.

5. 4. A work vehicle according to claim 3, wherein the boss member is fixed to the mounting portion with an adhesive.

6. A reinforcing rib is formed on the outer periphery of the attached portion, 6. A work vehicle according to claim 3, wherein the boss member is formed with an engagement groove into which the rib is engaged.

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