Service vehicle

Abstract

To provide a service vehicle which can facilitate arrangement work of a hitch.SOLUTION: A service vehicle comprises: an engine 6; a travel unit 2 with a rear wheel 22; a continuously variable transmission device 8 which protrudes to a rear side relative to the rear wheel 22 to continuously variable-transfers driving force from the engine; a guard member 9 which covers at least from a rear side the continuously variable transmission device 8; a first attachment part which is overlapped with the rear wheel 22 in a side view; and an extension member 11 which is attached to the first attachment part to protrude rearward from the first attachment part in which the extension member 11 includes a second attachment part to which a hitch 14 connected with the guard member 9 can be attached.SELECTED DRAWING: Figure 6

Description

[Technical Field]

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

[0002] Patent Document 1 discloses a multipurpose vehicle equipped with a drive unit that is configured by integrally connecting an engine, a transmission case, and a hydrostatic continuously variable transmission (HST) in that order from the front side. The hydrostatic continuously variable transmission is supported at the rear of the vehicle by a frame-like structure.

[0003] Patent Document 2 discloses a tractor that includes a transmission case disposed at the rear of the vehicle body, a support attached to the transmission case, and a hitch supported by the support. The hitch is connected to a towed object via a towing member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-059373 [Patent Document 2] Japanese Patent Application Publication No. 2024-4953 Summary of the Invention [Problem to be solved by the invention]

[0005] In the multipurpose vehicle described in Patent Document 1, the precision hydraulic continuously variable transmission protrudes rearward from the body frame.

[0006] When the hitch unit described in Patent Document 2 is attached as an option to the body frame of such a multipurpose vehicle, the portion where the hitch unit is attached is located further forward on the vehicle body than the precision hydraulic continuously variable transmission. In other words, when attaching the hitch unit to the body frame, the precision hydraulic continuously variable transmission, which protrudes further rearward on the vehicle body than the body frame, may get in the way.

[0007] An object of the present invention is to provide a work vehicle that makes it easy to attach a hitch. [Means for solving the problem]

[0008] The characteristic configuration of a work vehicle for achieving the above-mentioned object is that it comprises an engine, a running device having rear wheels, a continuously variable transmission that protrudes rearward of the rear wheels and continuously changes the speed of the driving force from the engine, a guard member that covers the continuously variable transmission from at least the rear side, a first mounting portion that is provided in a position that overlaps with the rear wheels in a side view, and an extension member that can be attached to the first mounting portion and protrudes rearward from the first mounting portion, and the extension member has a second mounting portion that is connected to the guard member and to which a hitch can be attached.

[0009] According to the above characteristic configuration, because the extension member protrudes rearward from the first mounting portion, the second mounting portion is located rearward of the first mounting portion. Furthermore, because the second mounting portion is connected to the guard member, the second mounting portion is less likely to shake when the hitch is attached to the second mounting portion. This makes it easier to attach the hitch from the rear of the work vehicle.

[0010] Another characteristic feature of the work vehicle according to the present invention is that it includes a body frame that supports the continuously variable transmission, and the first mounting portion is provided at the rear end of the body frame.

[0011] Because the continuously variable transmission protrudes rearward from the machine frame, the continuously variable transmission gets in the way when attaching the hitch from the rear of the work vehicle. According to the above characteristic configuration, the extension member protrudes rearward from the first mounting portion. This makes it less likely that the continuously variable transmission will get in the way when attaching the hitch to the second mounting portion from the rear of the work vehicle. This makes it easier to attach the hitch.

[0012] Another characteristic feature of the work vehicle according to the present invention is that the extension member is detachably attached to the first attachment portion.

[0013] According to the above-described characteristic configuration, the extension member can be removed when the hitch is not in use, thereby preventing the extension member from coming into contact with obstacles located behind the work vehicle.

[0014] Another characteristic feature of the work vehicle according to the present invention is that the first attachment portion is located below the guard member.

[0015] The first mounting portion is located in a position that is difficult for the worker to see when attaching the hitch due to the continuously variable transmission or guard member. According to the above characteristic configuration, the extension member protrudes rearward from the first mounting portion. This makes it easier to see the second mounting portion from the rear of the work vehicle. This makes it easier to attach the hitch.

[0016] Another characteristic feature of the work vehicle according to the present invention is that the guard member has a plate-shaped guard portion that extends along the rear surface of the continuously variable transmission.

[0017] The first mounting portion is located in a position that is difficult for the worker to see when attaching the hitch due to the continuously variable transmission or plate-shaped guard portion. According to the above characteristic configuration, the extension member protrudes rearward from the first mounting portion. This makes it easier to see the second mounting portion from the rear of the work vehicle. This makes it easier to attach the hitch.

[0018] Another characteristic feature of the work vehicle of the present invention is that the guard member has a slit formed in the guard portion, and the second mounting portion has an engagement portion that extends upward from the second mounting portion and can engage with the slit.

[0019] According to the above characteristic configuration, the extension member can be attached to the first attachment part with the engagement portion engaged with the slit. This makes it easy to adjust the position when attaching the extension member to the first attachment part. Therefore, the work of attaching the extension member becomes easy.

[0020] Another characteristic feature of the work vehicle of the present invention is that the second mounting portion has a plate-shaped fixing portion extending along the guard portion, the fixing portion having a first long hole extending in the vertical direction and through which a fixing member is inserted, and the second mounting portion is fixed to the guard portion by the fixing member inserted into the first long hole.

[0021] According to the above characteristic configuration, the second mounting portion is fixed to the guard portion by a fixing member inserted into the first elongated hole extending in the vertical direction. This makes it difficult for the shaking of the second mounting portion to be transmitted to the fixing member even when the second mounting portion swings up and down due to the movement of the work vehicle. Therefore, the fixing member fixed to the guard portion is unlikely to loosen due to the swing of the second mounting portion.

[0022] Another characteristic configuration of the work vehicle of the present invention is that the second mounting portion comprises a first member extending upward from the second mounting portion, a second member fixed to the guard portion and protruding rearward, and a rod-shaped third member connecting the first member and the second member, the first member having a through hole into which the third member is inserted, the second member having a second elongated hole at the rear end of the second member that extends in the fore-and-aft direction and into which the third member is inserted, and the first member is connected to the second member by the third member that is inserted into the through hole and the second elongated hole.

[0023] According to the above characteristic configuration, the first member is connected to the second member by the third member inserted into the second elongated hole extending in the front-rear direction. This makes it difficult for the vibration of the first member to be transmitted to the second member even when the first member vibrates in the front-rear direction due to the movement of the work vehicle. Therefore, the fixing member fixed to the guard part is unlikely to become loose due to the vibration of the second member.

[0024] Another characteristic feature of the work vehicle of the present invention is that the first mounting portion has a first opening formed on the side of the first mounting portion and into which a rod-shaped first support member of the extension member can be inserted, and the second mounting portion has a second opening formed on the side of the second mounting portion and into which a rod-shaped second support member of the hitch can be inserted.

[0025] According to the above-described characteristic configuration, the extension member is fixed to the first mounting portion by inserting the first support member into the first opening, and the hitch is fixed by inserting the second support member into the second opening, which makes it difficult for the hitch to come off the work vehicle. [Brief explanation of the drawings]

[0026] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. 4 is a perspective view showing a cover member and an extension member. [Figure 4] FIG. [Figure 5] FIG. 4 is a plan view cross-sectional view showing the periphery of an extension member. [Figure 6] 4 is a left side vertical cross-sectional view showing the periphery of the continuously variable transmission with the extension member attached. FIG. [Figure 7] FIG. 4 is a left side vertical cross-sectional view showing the periphery of the continuously variable transmission with the extension member removed. [Figure 8] FIG. 10 is a perspective view showing another example of a cover member and an extension member. [Figure 9] FIG. 10 is a rear view showing another example of the extension member. [Figure 10] FIG. 10 is a left side vertical cross-sectional view showing another example of the periphery of a continuously variable transmission with an extension member attached. DETAILED DESCRIPTION OF THE INVENTION

[0027] First Embodiment A multipurpose vehicle, which is an example of a work vehicle according to the present invention, will be described below with reference to the drawings. In the following description, the direction of arrow F in the drawings will be referred to as the "front side," the direction of arrow B as the "rear side," the direction of arrow U as the "upper side," the direction of arrow D as the "lower side," the direction of arrow R as the "right side," and the direction of arrow L as the "left side."

[0028] [Overall structure] As shown in Figures 1 and 2, the work vehicle body 100 comprises a body frame 1, a running device 2 that supports the body frame 1, a bonnet 3, a passenger section 4 where the occupants sit, a dump-type cargo bed 5, an engine 6, a transmission 7, a continuously variable transmission 8, a guard member 9 that covers the continuously variable transmission 8 from at least the rear side, and an extension member 11.

[0029] The traveling device 2 has left and right front wheels 21 that are steerable and drivable, and left and right rear wheels 22 that are not steerable and drivable. The front wheels 21 support the front part of the vehicle frame 1. The rear wheels 22 support the rear part of the vehicle frame 1. The traveling device 2 is configured to be switchable between a two-wheel drive state in which only the left and right rear wheels 22 are driven, and a four-wheel drive state in which the left and right front wheels 21 and the left and right rear wheels 22 are driven.

[0030] The riding section 4 is located between the left and right front wheels 21 and the left and right rear wheels 22 in a side view. The riding section 4 is supported by the vehicle frame 1.

[0031] The riding section 4 includes a seat 41 on which an occupant sits, a steering handle 42 for steering the left and right front wheels 21, and a ROPS (Rollover Protective Structure) 43 for protecting the occupant. The ROPS 43 surrounds the riding section 4. The lower end of the ROPS 43 is connected to the aircraft frame 1.

[0032] The bonnet 3 is located in front of the passenger section 4. The luggage compartment 5 is located behind the passenger section 4. The bonnet 3 houses a radiator that cools the coolant for the engine 6 and the like.

[0033] 1, the engine 6, the transmission 7, and the continuously variable transmission 8 are integrally connected in this order from the front side of the vehicle body 100. The engine 6, the transmission 7, and the continuously variable transmission 8 are supported by the vehicle body frame 1.

[0034] The output shaft of the engine 6 extends in the longitudinal direction of the vehicle body. The driving force from the engine 6 is transmitted to a continuously variable transmission 8.

[0035] The continuously variable transmission 8 is a hydrostatic continuously variable transmission. In other words, the continuously variable transmission 8 is an HST (Hydraulic Static Transmission). The continuously variable transmission 8 protrudes rearward from the rear wheel 22.

[0036] The output shaft of the continuously variable transmission 8 is connected to the input shaft of the transmission 7. As a result, the driving force whose speed is continuously changed by the continuously variable transmission 8 is transmitted to the transmission 7.

[0037] Although not specifically shown in the drawings, the transmission 7 includes an auxiliary transmission that further changes the driving force that has been continuously variable by the continuously variable transmission 8 into multiple stages, a gear-type forward / reverse transmission that switches between forward and reverse, and a rear wheel differential mechanism.

[0038] The power changed in speed by the transmission 7 is transmitted to the left and right rear wheels 22 or the left and right front wheels 21 and the left and right rear wheels 22. In other words, the continuously variable transmission 8 transmits the driving force from the engine 6 to the traveling device 2 via the transmission 7.

[0039] [Guard member] As shown in Figures 2, 3, and 4, the guard member 9 has a plate-shaped guard portion 9a extending along the rear surface of the continuously variable transmission 8, a support portion 9b extending rearward from the rear of the vehicle frame 1, and a slit 9c formed in the guard portion 9a.

[0040] The front end of the support portion 9b is connected to the rear portion of the vehicle frame 1. The rear end of the support portion 9b is connected to the guard portion 9a.

[0041] In this embodiment, the longitudinal direction of the slit 9c is aligned with the left-right direction of the machine body 100. However, the present invention is not limited to this, and the longitudinal direction of the slit 9c may be aligned with the up-down direction, for example.

[0042] The slit 9c is located at the left-right center of the guard part 9a in rear view, and is located below the top-bottom center of the guard part 9a in rear view.

[0043] In the present embodiment, the number of slits 9c is one. However, the number of slits 9c is not limited to one. For example, two slits 9c may be provided at positions symmetrical on either side of the center of the guard part 9a.

[0044] [First mounting part] As shown in Figures 3, 5, and 6, the work vehicle is equipped with a first mounting portion 10 to which an extension member 11 can be attached. The first mounting portion 10 is provided at the rear end of the machine body frame 1. The rear end of the machine body frame 1 is located at a position overlapping with the rear wheel 22. In other words, the first mounting portion 10 is provided at a position overlapping with the rear wheel 22 in a side view. The first mounting portion 10 is located at the left-right center of the machine body 100.

[0045] The first mounting portion 10 is located below the guard member 9. Specifically, the first mounting portion 10 is located inside the machine body 100 in the front-to-rear direction of the machine body 100 relative to the guard part 9a in a side view. The first mounting portion 10 is also located below the continuously variable transmission 8.

[0046] The first mounting portion 10 has a first insertion opening 10a facing rearward of the machine body 100, and first openings 10b formed on the left and right sides of the first mounting portion 10.

[0047] [Extension member] As shown in Figures 3, 5, and 6, the work vehicle body 100 is provided with an extension member 11 that protrudes rearward from the first mounting portion 10. The extension member 11 is attachable to the first mounting portion 10. The rear end of the extension member 11 is located rearward of the continuously variable transmission 8 on the body 100.

[0048] The extension member 11 has an insertion portion 11a that can be inserted into the first attachment portion 10, a rod-shaped first support member 11b, and a second attachment portion 12 to which a hitch 14 can be attached. The insertion portion 11a is located at the front end of the extension member 11. The second attachment portion 12 is located at the rear end of the extension member 11. The extension member 11 is detachably attached to the first attachment portion 10.

[0049] The first support member 11b is a separate member from the extension member 11. To prevent the first support member 11b from falling off, the first support member 11b is provided with a pin hole and a retaining pin that is inserted into and removed from the pin hole.

[0050] As shown in Figure 6, the hitch 14 is a member that can be connected to a towed object. The front end of the hitch 14 can be inserted into the second attachment portion 12. The hitch 14 has through-holes formed on the left and right sides of the hitch 14 and penetrating in the left-right direction, and a rod-shaped second support member 14a that can be inserted into the through-holes. However, the hitch 14 is not limited to this, and may have any shape as long as it can be attached to the second attachment portion 12.

[0051] The second support member 14a is a separate member from the hitch 14. To prevent the second support member 14a from falling off, the second support member 14a is provided with a pin hole and a retaining pin that is inserted into and removed from the pin hole.

[0052] 6 is a straight line connecting the ground contact surface rearward of the center of the rear wheel 22 and the lower end of the rear end of the extension member 11 when the extension member 11 is attached to the first attachment portion 10. Angle θ1 is the angle formed by the ground contact surface of the traveling device 2 and the line L1.

[0053] 7 is a straight line connecting the ground contact surface rearward of the center of the rear wheel 22 and the lower end of the rear end of the guard member 9 when the extension member 11 is detached from the first attachment portion 10. Angle θ2 is the angle formed by the ground contact surface of the traveling device 2 and the line L2.

[0054] The angle θ2 is larger than the angle θ1. As a result, when the hitch 14 is not in use, the departure angle of the machine body 100 increases by removing the extension member 11 from the first mounting portion 10 along with the hitch 14. In other words, when the work vehicle is traveling on uneven ground, the rear end of the work vehicle is less likely to come into contact with the uneven ground.

[0055] [Second mounting part] As shown in Figures 3, 5, and 6, the second mounting portion 12 has a second insertion opening 12a facing rearward of the aircraft body 100 and into which the hitch 14 can be inserted, second openings 12b formed on the left and right sides of the second mounting portion 12, and an engagement portion 12c extending upward from the second mounting portion 12 and capable of engaging with the slit 9c.

[0056] The engagement portion 12c is a plate-shaped member. The upper end of the engagement portion 12c is folded back toward the inside in the front-to-rear direction of the aircraft body 100. The upper end of the engagement portion 12c is engaged with a slit 9c in the guard portion 9a. With the engagement portion 12c engaged with the slit 9c, the engagement portion 12c is connected to the guard portion 9a by a fixing member 13 such as a bolt. In other words, the second mounting portion 12 is connected to the guard member 9.

[0057] [Installation of extension members and hitches] 3 and 6, the insertion portion 11a of the extension member 11 is manually inserted into the first insertion opening 10a of the first attachment portion 10. Specifically, the insertion portion 11a is inserted to a position where the through-holes extending in the left-right direction of the insertion portion 11a overlap with the left and right first openings 10b in a side view. As a result, the left and right first openings 10b communicate with the through-holes of the insertion portion 11a.

[0058] Next, the first support member 11b of the extension member 11 is inserted into the first opening 10b. This fixes the extension member 11 to the first mounting part 10. Next, a retaining pin is inserted into the pin hole of the first support member 11b. In this way, the extension member 11 is attached to the first mounting part 10.

[0059] Next, the hitch 14 is manually inserted into the second insertion opening 12a of the extension member 11. Specifically, the hitch 14 is inserted to a position where the through-hole of the hitch 14 overlaps with the left and right second openings 12b in a side view. As a result, the left and right second openings 12b and the through-hole of the hitch 14 communicate with each other.

[0060] Next, the second support member 14a of the hitch 14 is inserted into the second opening 12b. In other words, the hitch 14 is fixed to the second mounting portion 12.

[0061] Next, the retaining pin is inserted into the pin hole of the second support member 14a. In this way, the hitch 14 is attached to the second attachment portion 12.

[0062] With the above configuration, the extension member 11 positions the second mounting portion 12 rearward of the machine body 100 relative to the continuously variable transmission 8. As a result, the continuously variable transmission 8 or guard member 9 is not located diagonally above and rearward of the second mounting portion 12, making it easier for the worker to see the second mounting portion 12. This makes it easier for the worker to attach the hitch 14 to the second mounting portion 12.

[0063] Second Embodiment Another example of a work vehicle according to the present invention will be described below, focusing on the differences from the first embodiment. Note that the same components as those in the first embodiment are designated by the same reference numerals. Also, the description of the same components as those in the first embodiment may be omitted.

[0064] 8, 9, and 10, the guard member 9 has a guard portion 9a and a support portion 9b. In this embodiment, the guard member 9 does not have a slit 9c formed in the guard portion 9a.

[0065] [Second mounting part] 8, 9, and 10, the second mounting portion 12 includes a second insertion opening 12a, a second opening 12b, a first member 12d extending upward from the second mounting portion 12, a second member 12e fixed to the guard portion 9a and protruding rearward, and a rod-shaped third member 12f connecting the first member 12d and the second member 12e. In this embodiment, the second mounting portion 12 does not have an engagement portion 12c that can engage with the slit 9c.

[0066] The first member 12d is a plate-shaped member. The first member 12d extends upward from the second mounting portion 12 and then bends toward the rear of the airframe 100. The first member 12d has a pair of plate-shaped members 15 at the upper end of the first member 12d that face each other with a predetermined gap between them. Each of the pair of plate-shaped members 15 has a through-hole into which the third member 12f is inserted.

[0067] The second member 12e has a plate-shaped fixing portion 16 at its front end portion that extends along the guard portion 9a. The fixing portion 16 has a plurality of elongated holes 17 (corresponding to first elongated holes) whose longitudinal direction extends along the up-down direction and through which the fixing members 13 are inserted. The elongated holes 17 penetrate the fixing portion 16 along the front-rear direction of the airframe 100. The second member 12e extends rearward from the guard portion 9a. The second member 12e has, at its rear end portion, an elongated hole 18 (corresponding to second elongated hole) whose longitudinal direction extends along the front-rear direction of the airframe 100 and through which the third member 12f is inserted. The elongated hole 18 penetrates the second member 12e along the left-right direction of the airframe 100. The second member 12e is located between the pair of plate-shaped members 15.

[0068] The third member 12f is a separate member from the second attachment portion 12. To prevent the third member 12f from falling off, the third member 12f is provided with a pin hole and a retaining pin that is inserted into and removed from the pin hole.

[0069] [Securing the second mounting part to the guard member] With the fixing portion 16 of the second member 12e aligned with the guard portion 9a, the fixing member 13 is inserted into the elongated hole 17. Next, the second member 12e is fixed to the guard portion 9a by the fixing member 13. In other words, the second attachment portion 12 is fixed to the guard portion 9a by the fixing member 13 inserted into the elongated hole 17.

[0070] With the through holes of the pair of plate-like members 15 and the elongated holes 18 of the second member 12e in communication with each other, the third member 12f is inserted into the through holes and elongated holes 18 of the pair of plate-like members 15. In other words, the first member 12d is connected to the second member 12e by the third member 12f inserted into the through holes of the first member 12d and the elongated holes 18 of the second member 12e.

[0071] As described above, the second attachment portion 12 is connected to the guard member 9 by the first member 12d, the second member 12e, and the third member 12f.

[0072] [Another embodiment] The present invention is not limited to the configurations exemplified in the above-described embodiments, and other representative embodiments of the present invention will be exemplified below.

[0073] [1] In the above-described embodiment, the guard portion 9a is a plate-shaped member extending along the rear surface of the continuously variable transmission 8. However, the guard portion 9a is not limited to this, and may be a rod-shaped member extending in the left-right direction of the vehicle body 100 along the rear surface of the continuously variable transmission 8.

[0074] [2] The guard member 9 may have a circular through-hole formed in the guard portion 9a instead of the slit 9c. In this case, the upper end of the engagement portion 12c is rod-shaped.

[0075] [3] In the above-described embodiment, the hitch 14 is fixed to the second mounting portion 12 by the second support member 14a. However, the hitch 14 may be fixed to the second mounting portion 12 by a bolt.

[0076] [4] In the above-described embodiment, the extension member 11 is attached to the first mounting portion 10 by the first support member 11b. However, the extension member 11 may be fixed to the first mounting portion 10 by a bolt.

[0077] [5] In the above-described embodiment, the rear end of the extension member 11 is located rearward of the aircraft body 100 relative to the continuously variable transmission 8. However, the rear end of the extension member 11 may be located so as to overlap with the continuously variable transmission 8 in a plan view.

[0078] [6] In the above-described embodiment, the first mounting portion 10 is provided at a position overlapping with the continuously variable transmission 8 in a plan view. However, the first mounting portion 10 may be provided at a position not overlapping with the continuously variable transmission 8 in a plan view. Specifically, the first mounting portion 10 may be provided at the lower left of the continuously variable transmission 8 or the lower right of the continuously variable transmission 8 in a rear view.

[0079] [7] The engagement portion 12c does not have to be connected to the guard member 9 by the fixing member 13. In other words, the second attachment portion 12 may be connected to the guard member 9 only by the engagement portion 12c being engaged with the slit 9c.

[0080] [8] The engagement portion 12c may have a member that protrudes from the vertical middle portion of the engagement portion 12c toward the inside in the front-rear direction of the aircraft body 100. In this case, the vertical middle portion of the engagement portion 12c is engaged with the slit 9c.

[0081] [9] The second mounting portion 12 may be connected to the guard member 9 by a chain, a wire, or multiple arm-like members extending upward from the second mounting portion 12.

[0082]

[10] In the above embodiment, a multipurpose vehicle is shown as an example of a work vehicle. However, the present invention is not limited to this and can be applied to work vehicles such as tractors, rice transplanters, paddy direct seeding machines, construction machines, etc.

[0083]

[11] The configurations disclosed in the above-described embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, unless a contradiction arises. Furthermore, the embodiments disclosed in this specification are merely examples, and the embodiments of the present invention are not limited thereto and can be appropriately modified within the scope of the purpose of the present invention. [Industrial Applicability]

[0084] The present invention can be applied to a work vehicle. [Explanation of symbols]

[0085] 1: Aircraft frame 2: Running gear 22: Rear wheel 6: Engine 8: Continuously variable transmission 9: Guard member 9a: Guard area 9c: Slit 10: First mounting part 10b: 1st opening 11: Extension member 11b: First support member 12: Second mounting part 12b: 2nd opening 12c: Engagement part 12d: First member 12e: Second member 12f: Third member 13: Fixing member 14: Hitch 14a: Second support member 16: Fixed area 17: Long hole (first long hole) 18: Long hole (second long hole)

Claims

1. The engine and a running device having rear wheels; a continuously variable transmission that protrudes rearward from the rear wheels and continuously changes the speed of the driving force from the engine; a guard member that covers the continuously variable transmission from at least the rear side; a first mounting portion provided at a position overlapping the rear wheel in a side view; an extension member attached to the first mounting portion and protruding rearward from the first mounting portion, The extension member has a second attachment portion that is connected to the guard member and to which a hitch can be attached.

2. a machine body frame supporting the continuously variable transmission, The work vehicle according to claim 1 , wherein the first attachment portion is provided at a rear end portion of the vehicle body frame.

3. The work vehicle according to claim 1 , wherein the extension member is detachably attached to the first attachment portion.

4. The work vehicle according to claim 1 , wherein the first attachment portion is located below the guard member.

5. 5. The work vehicle according to claim 4, wherein the guard member has a plate-shaped guard portion extending along the rear surface of the continuously variable transmission.

6. the guard portion has a slit formed therein, The work vehicle according to claim 5 , wherein the second mounting portion has an engagement portion that extends upward from the second mounting portion and is engageable with the slit.

7. the second attachment portion has a plate-shaped fixing portion extending along the guard portion, The fixing portion has a first elongated hole extending in the vertical direction and through which a fixing member is inserted, The work vehicle according to claim 5, wherein the second mounting portion is fixed to the guard portion by the fixing member inserted into the first elongated hole.

8. the second mounting portion includes a first member extending upward from the second mounting portion, a second member fixed to the guard portion and protruding rearward, and a rod-shaped third member connecting the first member and the second member, the first member has a through hole into which the third member is inserted, the second member has a second elongated hole at a rear end thereof, the second elongated hole extending in the front-rear direction and into which the third member is inserted; The work vehicle according to claim 5 , wherein the first member is connected to the second member by the third member that is inserted through the through hole and the second elongated hole.

9. the first mounting portion includes a first opening formed on a side portion of the first mounting portion and into which a rod-shaped first support member of the extension member can be inserted; The work vehicle according to claim 1 , wherein the second mounting portion has a second opening formed on a side of the second mounting portion and into which a second support member of the hitch can be inserted.

Images