Work vehicle

The work vehicle design addresses the complexity of side cover support in existing vehicles by using a separate mounting member, resulting in improved maintainability and installation workability.

JP2025052750APending Publication Date: 2025-04-07KUBOTA CORP
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Patent Information

Application Number
JP2023161623
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-25
Publication Date
2025-04-07

AI Technical Summary

Technical Problem

The existing work vehicle designs, such as tractors, have a complex structure for supporting the side cover, which complicates maintenance and installation processes.

Method used

A work vehicle design that includes a separate mounting member for attaching the side cover to the bonnet support portion, simplifying the structure and improving maintainability.

Benefits of technology

The simplified structure for supporting the side cover enhances maintainability and installation workability, allowing for easier adjustment and reduced complexity in the bonnet support system.

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Abstract

To provide a work vehicle in which structure for supporting a side cover can be simplified.SOLUTION: A tractor 1 comprises: an opening-closing type bonnet 4 for covering an engine 3; a bonnet support part 20 for supporting a rotation axis 4b of the bonnet 4; a side cover 30 provided along a side part of the bonnet 4; and each mounting stay 40 formed separately from the bonnet support part 20 and mounting the side cover 30 to the bonnet support part 20. Further, each mounting stay 40 comprises: a base part 41 formed in a plate shape with the plate face facing forward and backward; and an inclined part 42 bending from a bottom end of the base part 41 and extending forward, and further formed so as to be inclined downwards as it moves forward.SELECTED DRAWING: Figure 2
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Description

[Technical field]

[0001] The present invention relates to the technology of work vehicles. [Background technology]

[0002] Conventionally, technology related to work vehicles has been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 describes a tractor equipped with a bonnet that covers an engine room in which an engine is installed, and a side cover that is provided in a cutout portion of the bonnet and covers a part of the side of the engine room. The bonnet is supported by an inverted U-shaped bonnet support frame. The side cover is detachably provided on the bonnet support frame, and maintenance work in the engine room can be performed by removing the side cover even when the bonnet is closed.

[0004] However, in the tractor described in Patent Document 1, the bonnet support frame serves both to support the bonnet and to attach the side covers, which poses the problem that the structure for supporting the side covers is complicated. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-187220 Summary of the Invention [Problem to be solved by the invention]

[0006] One aspect of the present disclosure has been made in consideration of the above-described situation, and the problem it aims to solve is to provide a work vehicle that can simplify the structure for supporting the side covers. [Means for solving the problem]

[0007] The problem to be solved by one embodiment of the present disclosure has been described above. Next, the means for solving this problem will be described.

[0008] A work vehicle according to one embodiment of the present disclosure comprises an opening / closing bonnet which covers an engine, a bonnet support part which supports the opening and closing fulcrum of the bonnet, a side cover which is provided along the side of the bonnet, and an attachment member which is formed separately from the bonnet support part and which attaches the side cover to the bonnet support part. According to one aspect of the present disclosure, the structure for supporting the side cover can be simplified.

[0009] The mounting member in one embodiment of the present disclosure comprises a base formed in a plate shape with the plate surface facing in the fore-and-aft direction, and an inclined portion that bends from the lower end of the base and extends forward and is formed so as to slope downward as it extends forward. According to one aspect of the present disclosure, it is possible to impart rigidity to a mounting member while improving maintainability.

[0010] The inclined portion according to one aspect of the present disclosure is formed so as to incline downward as it approaches the outer side in the vehicle width direction. According to one aspect of the present disclosure, maintainability can be further improved.

[0011] The mounting member according to one aspect of the present disclosure includes a fixing portion that is bent from a side end of the base portion and is fixed to the bonnet support portion. According to one aspect of the present disclosure, fixing to the bonnet support and providing rigidity to the mounting member can be performed by one part (the fixing part), which in turn simplifies the structure.

[0012] A work vehicle according to one embodiment of the present disclosure comprises a mounting pin provided on the mounting member and protruding forward from the mounting member, and an insertion portion provided on the side cover through which the mounting pin is inserted from the rear. According to one aspect of the present disclosure, the mounting pin protrudes rearward of the bonnet on the side opposite the cabin, thereby preventing the mounting pin from coming into contact with the cabin.

[0013] The side cover according to one embodiment of the present disclosure comprises a main body portion provided along a side of the bonnet, and a mounting portion formed on the vehicle widthwise inner side of the main body portion and attached to the mounting member, the mounting portion being provided in a position overlapping with the main body portion in a side view. According to one aspect of the present disclosure, the mounting portion can be made difficult to see from outside the vehicle, thereby improving the design of the exterior appearance.

[0014] In one embodiment of the present disclosure, the bonnet support portion comprises a pair of left and right extension members extending vertically, and the extension members have a bending portion that is bent so that the lower portion of the extension member is positioned forward or rearward of the upper portion of the extension member. According to one aspect of the present disclosure, it is possible to improve the ease of installation and removal of a member (for example, a power steering unit) disposed below the opening and closing fulcrum of the bonnet.

[0015] The bonnet support portion according to one aspect of the present disclosure includes a reinforcing member that reinforces the bent portion, and the mounting member is fixed to the reinforcing member. According to one aspect of the present disclosure, the reinforcement of the bent portion of the extension member and the fixing of the mounting member can be performed by one member (reinforcing member), which in turn simplifies the structure. Effect of the Invention

[0016] According to one aspect of the present disclosure, the workability of attaching the side cover can be improved, and the position of the side cover can be easily adjusted. [Brief description of the drawings]

[0017] [Figure 1] 1 is a left side view showing an overall configuration of a tractor according to one embodiment of the present disclosure; FIG. [Diagram 2] FIG. 4 is a rear perspective view showing the bonnet, the side covers, and the structure supporting the bonnet and the side covers. [Diagram 3] FIG. 4 is a front perspective view showing a structure for supporting the bonnet and the side cover. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 4 is a plan sectional view showing a portion where a side cover is attached to a mounting stay. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] In the following description, the directions indicated by arrows U, D, F, B, L and R in the figures are defined as upward, downward, forward, backward, leftward and rightward, respectively.

[0019] First, the overall configuration of a tractor 1 according to one embodiment of the present disclosure will be described.

[0020] The tractor 1 shown in Figure 1 mainly comprises a body frame 2, an engine 3, a bonnet 4, a transmission case 5, front wheels 6, rear wheels 7, fenders 8, a lifting device 9, a cabin 10, a bonnet support part 20 (see Figure 2), a side cover 30, and a mounting stay 40 (see Figure 2).

[0021] The machine body frame 2 is a frame-shaped member formed by appropriately combining a number of plate materials. The machine body frame 2 is disposed at the front of the tractor 1 with its longitudinal direction facing the front-rear direction. An engine 3 is fixed to the rear of the machine body frame 2. The engine 3 is covered by an opening / closing bonnet 4. A transmission case 5 is fixed to the rear of the engine 3. A muffler 4a that discharges exhaust gas from the engine 3 is disposed on the right side of the bonnet 4.

[0022] The transmission case 5 houses a power transmission mechanism (not shown). The front part of the vehicle frame 2 is supported by a pair of left and right front wheels 6 via a front axle mechanism (not shown). The rear part of the transmission case 5 is supported by a pair of left and right rear wheels 7 via a rear axle mechanism (not shown). The pair of left and right rear wheels 7 are covered by a fender 8 from roughly above.

[0023] A lifting device 9 is provided at the rear of the transmission case 5. Various types of working equipment (e.g., a tiller, etc.) can be attached to the lifting device 9. The lifting device 9 can raise and lower the attached working equipment by an actuator such as a hydraulic cylinder.

[0024] The power of the engine 3 is changed in speed by a transmission (not shown) or the like, and then transmitted to the front axle mechanism, and can be transmitted to the front wheels 6 via the front axle mechanism. In addition, the power changed in speed by the transmission can be transmitted to the rear wheels 7 via the rear axle mechanism. In this way, the front wheels 6 and the rear wheels 7 are driven to rotate by the power of the engine 3, and the tractor 1 can travel. In addition, the power of the engine 3 can drive a working device attached to the lifting device 9.

[0025] A cabin 10 is provided behind the engine 3. The cabin 10 is mounted on the vehicle body (transmission case 5, etc.). A living space for the driver is formed inside the cabin 10. A seat 11 for the driver to sit on is arranged in the living space. A steering wheel 12 for adjusting the turning angle of the front wheels 6 is also arranged in the front of the cabin 10. The turning operation of the steering wheel 12 is transmitted to a power steering unit 13 (see FIG. 4) via a connecting shaft 14 (see FIG. 4).

[0026] A rotation shaft 4b (see FIGS. 2 and 3) supported by a bonnet support part 20 is inserted into the rear end of the bonnet 4. The bonnet 4 is provided to be rotatable about the rotation shaft 4b, which serves as a fulcrum for opening and closing the bonnet 4. This allows the front end of the bonnet 4 to be pivotable up and down relative to the vehicle frame 2.

[0027] A side cover 30 is provided along the side of the bonnet 4. The side cover 30 is attached to the bonnet support portion 20 by a mounting stay 40.

[0028] The structure for supporting the side cover 30 will be described below with reference to FIGS.

[0029] 2 to 4 is provided to support the rotation shaft 4b of the bonnet 4 from below. The bonnet support part 20 is configured by combining appropriate plate-shaped members and rod-shaped members. The bonnet support part 20 mainly includes an extension member 21, a reinforcing member 22, a first connecting plate 23, and a second connecting plate 24.

[0030] The extension member 21 is a member that extends from top to bottom. The extension member 21 is formed of a round pipe. A pair of left and right extension members 21 are provided. The pair of left and right extension members 21 are formed symmetrically with each other. The extension member 21 includes an upper extension member portion 21a, a middle extension member portion 21b, and a lower extension member portion 21c.

[0031] 3 and 4 is a portion that constitutes the upper portion of the extension member 21. The extension member upper portion 21a is formed so as to extend vertically. The extension member upper portion 21a supports the rotation shaft 4b from below at its upper end via an appropriate member.

[0032] 3 and 4 is a portion that constitutes the vertical middle portion of the extension member 21. The extension member middle portion 21b is formed so as to incline forward as it extends downward. More specifically, the extension member middle portion 21b is formed so as to bend from a first bent portion 21d formed at the lower end of the extension member upper portion 21a (the connection portion between the extension member upper portion 21a and the extension member middle portion 21b) and extend downward and forward.

[0033] 3 and 4 is a portion that constitutes the lower portion of the extension member 21. The extension member lower portion 21c is formed so as to extend vertically. More specifically, the extension member lower portion 21c is formed so as to bend from a second bent portion 21e formed at the lower end of the extension member middle portion 21b (the connection portion between the extension member middle portion 21b and the extension member lower portion 21c) and extend downward.

[0034] In this manner, the extension member 21 is bent at the first bent portion 21d and the second bent portion 21e, so that the extension member lower portion 21c is positioned forward of the extension member upper portion 21a. By bending in this manner, the extension member 21 is formed so as not to overlap with members (such as the nut 13a and the connecting portion 13b with the connecting shaft 14) for attaching and detaching the power steering unit 13 disposed below the rotating shaft 4b of the bonnet 4 in a side view (see FIG. 4).

[0035] The reinforcing member 22 reinforces the extension member 21. The reinforcing member 22 is configured to reinforce the first bent portion 21d and the second bent portion 21e in particular. The reinforcing member 22 is formed in a plate shape. The reinforcing member 22 is provided with its longitudinal direction facing the up-down direction and its plate surface facing the left-right direction. The reinforcing member 22 is provided behind the extension member middle portion 21b so as to follow the extension member middle portion 21b (to abut against the extension member middle portion 21b). The reinforcing member 22 is formed so as not to overlap with members for attaching and detaching the power steering unit 13 (the nut 13a and the connecting portion 13b with the connecting shaft 14) in a side view (see FIG. 4). The mounting stay 40, which will be described later, is fixed to the reinforcing member 22.

[0036] 3 and 4 connects the left and right extension members 21 to each other. The first connecting plate 23 is provided so that the short side direction faces the extension direction of the extension member middle parts 21b and connects the left and right extension member middle parts 21b to each other. Note that the left and right extension members 21 are also connected to each other by other members than the first connecting plate 23.

[0037] The second connecting plate 24 shown in Figs. 3 and 4 connects the reinforcing member 22 and the first connecting plate 23. A pair of second connecting plates 24 are provided on the left and right. The second connecting plate 24 is provided so that its plate surface is perpendicular to the plate surface of the first connecting plate 23. One end of the second connecting plate 24 is fixed to the rear surface of the first connecting plate 23, and the other end is fixed to the inner surface of the reinforcing member 22 in the vehicle width direction. The other end of the second connecting plate 24 is provided between the upper and lower bolts 43a that fix the reinforcing member 22 and the mounting stay 40 (fixing portion 43). By providing the second connecting plate 24 in this manner, the reinforcing member 22 and the mounting stay 40 can be reinforced.

[0038] The mounting stays 40 are used to attach the side cover 30 to the bonnet support portion 20. The mounting stays 40 are formed separately from the bonnet support portion 20. The mounting stays 40 are provided on each of the left and right sides of the bonnet support portion 20. The mounting stays 40 include a base portion 41, an inclined portion 42, and a fixed portion 43.

[0039] 3, 5, and 6 is a part that constitutes the main structure of the mounting stay 40. The base 41 is formed in a plate shape and is provided with the plate surface facing the front-rear direction. A mounting pin 41a is fixed to the base 41.

[0040] The mounting pin 41a is provided to which the rear end of the side cover 30 is attached. In this embodiment, the mounting pin 41a is a headed pin. The mounting pin 41a is provided near the outer end of the base 41 in the vehicle width direction. The mounting pin 41a is inserted into the base 41 from the rear and fixed to the base 41 so as to protrude forward from the base 41. Two mounting pins 41a are provided spaced apart vertically.

[0041] The inclined portion 42 is a portion that is bent and extends forward from the lower end of the base portion 41. The inclined portion 42 is formed so as to be inclined downward as it approaches the front. The inclined portion 42 is also formed so as to be inclined downward as it approaches the outer side in the vehicle width direction.

[0042] 3 is a portion that is fixed to the bonnet support part 20. The fixing part 43 is formed so as to bend from a side end on the inner side in the vehicle width direction of the base part 41 and extend forward. The fixing part 43 is provided so that its inner surface in the vehicle width direction abuts against an outer surface in the vehicle width direction of the reinforcing member 22 of the bonnet support part 20. The fixing part 43 is fixed to the reinforcing member 22 by two bolts 43a, one above and one below, at a position that sandwiches the second connecting plate 24 from above and below.

[0043] The side cover 30 shown in FIG. 2 is formed to fit along the side (side surface) of the bonnet 4. The side cover 30 is disposed in a cut-out portion of the rear side surface of the bonnet 4, and is provided so as to cover the engine 3 and the like provided inside the bonnet 4 from the side. The front end of the side cover 30 is fastened with bolts to a support frame (not shown) fixed to the vehicle frame 2 (see FIG. 1). Meanwhile, the rear end of the side cover 30 is attached to an attachment stay 40. The side cover 30 includes a main body portion 31 and an attachment portion 32.

[0044] 2, 5, and 6 is a portion that constitutes the main structure of the side cover 30. The main body portion 31 is provided along the side portion of the bonnet 4. A bent portion 31a is formed at the rear end of the main body portion 31. The bent portion 31a is formed so as to bend from the rear end of the main body portion 31 and extend inward in the vehicle width direction.

[0045] The mounting portion 32 shown in Figs. 2, 5 and 6 is a portion that is attached to the mounting stay 40 described later. The mounting portion 32 is formed in a substantially Z-shape in plan view. The mounting portion 32 is provided on the inner side of the main body portion 31 in the vehicle width direction so as to be aligned with the rear end portion of the main body portion 31. The mounting portion 32 is provided so as to be located forward of the rear end of the main body portion 31. The mounting portion 32 is also provided so that its upper end is located lower than the upper end of the main body portion 31. The mounting portion 32 is also provided so that its lower end is located higher than the lower end of the main body portion 31. Thus, the mounting portion 32 is provided at a position that overlaps with the main body portion 31 in a side view. The mounting portion 32 includes a first portion 32a, a second portion 32b and a third portion 32c.

[0046] 5 and 6 is a portion fixed to the bent portion 31a of the main body portion 31. The first portion 32a is provided so as to abut against the front surface of the bent portion 31a with the plate surface facing in the front-rear direction. The first portion 32a is fixed to the bent portion 31a by welding or the like.

[0047] The second portion 32b shown in Figs. 5 and 6 is formed so as to bend from the inner end portion in the vehicle width direction of the first portion 32a and extend forward.

[0048] The third portion 32c shown in Figs. 5 and 6 is formed so as to bend from the front end of the second portion 32b and extend inward in the vehicle width direction.

[0049] The third portion 32c is provided with a vibration-proof member 32d. A rubber grommet is used as the vibration-proof member 32d. The vibration-proof member 32d is formed in a cylindrical shape with a through hole on the inside. The vibration-proof member 32d is provided with its axis directed in the front-rear direction. Two vibration-proof members 32d are provided at positions corresponding to the mounting pins 41a, spaced apart vertically. The mounting pin 41a is inserted into the vibration-proof member 32d from the rear.

[0050] In this manner, the mounting pin 41a is inserted into the vibration-proof member 32d from the rear, whereby the rear end of the side cover 30 is attached to the mounting stay 40. That is, the rear end of the side cover 30 is attached to the bonnet support portion 20 via the mounting stay 40.

[0051] The side cover 30 configured in this manner can be attached to the vehicle body by fixing the front end to a support frame (not shown) with a bolt while the rear end is engaged with the mounting stay 40 (with the mounting pin 41a inserted through the vibration-isolating member 32d). The side cover 30 can be removed from the vehicle body by removing the bolt at the front end and releasing the engagement of the rear end with the mounting stay 40. In this way, the side cover 30 is provided detachably to the vehicle body, which facilitates maintenance work in the engine room.

[0052] In the tractor 1 configured as above, the side cover 30 is not directly attached to the bonnet support part 20, but is attached via a mounting stay 40 formed separately from the bonnet support part 20. This simplifies the structure and reduces the weight of the bonnet support part 20 and the mounting stay 40. Therefore, the transportability of the bonnet support part 20 and the mounting stay 40 can be improved.

[0053] In addition, the mounting stays 40 are formed separately from the bonnet support part 20. Therefore, the position of the mounting stays 40 relative to the bonnet support part 20 can be fine-tuned or the mounting stays 40 can be replaced with ones of a different shape, making it easy to adjust the position of the side cover 30.

[0054] Furthermore, the base 41 of the mounting stay 40 is formed with the inclined portion 42 so as to bend from the lower end of the base 41, thereby making it possible to improve the rigidity of the mounting stay 40.

[0055] Furthermore, dust such as dirt and straw may enter the engine compartment covered by the bonnet 4 from the front. Here, the inclined portion 42 is formed so as to extend forward from the lower end of the base portion 41 and incline downward as it moves forward. This makes it difficult for dust that enters the bonnet 4 and collides with the base portion 41 to accumulate on the inclined portion 42. Therefore, the maintainability of the mounting stay 40 can be improved.

[0056] In addition, the inclined portion 42 is formed so as to incline downward as it approaches the outer side in the vehicle width direction. This allows dust to be guided to the outer side in the vehicle width direction and dropped downward. This makes it possible to prevent dust from falling on the engine 3, the power steering unit 13, etc., which are provided on the center side in the vehicle width direction.

[0057] Moreover, the rigidity of the mounting stay 40 can be improved by forming the fixing portion 43 at the base 41 of the mounting stay 40 so as to bend from the side end of the base 41. Moreover, the fixing portion 43 can fix the mounting stay 40 to the bonnet support portion 20 and impart rigidity to the mounting stay 40, thereby simplifying the structure.

[0058] In addition, the mounting pin 41a is provided so as to protrude forward, rather than toward the cabin 10 at the rear of the mounting stay 40. Therefore, even if the cabin 10 sways or vibrates, the mounting pin 41a can be prevented from coming into contact with the cabin 10.

[0059] Moreover, the mounting portion 32 is provided at a position overlapping the main body portion 31 in a side view. Therefore, when the tractor 1 is viewed from outside the vehicle, the mounting portion 32 is hidden by the main body portion 31 and is difficult to see. Therefore, the design of the exterior of the tractor 1 can be improved.

[0060] In addition, the extension member 21 is bent so that the extension member lower portion 21c is positioned forward of the extension member upper portion 21a. This improves the workability of attaching and detaching the power steering unit 13 disposed below the pivot shaft 4b of the bonnet 4.

[0061] Furthermore, the reinforcing member 22 serves both to reinforce the bent portions (first bent portion 21d and second bent portion 21e) of the extending member 21 and to fix the mounting stay 40, thereby making it possible to simplify the structure.

[0062] As described above, the tractor 1 (work vehicle) according to this embodiment has the following features: An opening and closing bonnet 4 covering the engine 3; A bonnet support portion 20 that supports a rotation shaft 4b (opening / closing fulcrum) of the bonnet 4; A side cover 30 provided along a side portion of the bonnet 4; a mounting stay 40 (mounting member) formed separately from the bonnet support portion 20 and configured to mount the side cover 30 to the bonnet support portion 20; It is equipped with the following.

[0063] With this configuration, the structure for supporting the side cover 30 can be simplified.

[0064] In addition, the mounting stay 40 is A base 41 formed in a plate shape with the plate surface facing in the front-rear direction; An inclined portion 42 is formed so as to bend from the lower end of the base portion 41 and extend forward, and to be inclined downward as it extends forward; It is equipped with the following.

[0065] By configuring in this manner, it is possible to impart rigidity to the mounting stay 40 while improving maintainability.

[0066] In addition, the inclined portion 42 is The upper portion is formed so as to be inclined downward as it goes outward in the vehicle width direction.

[0067] By configuring in this way, maintainability can be further improved.

[0068] In addition, the mounting stay 40 is The base portion 41 is bent from a side end thereof to provide a fixing portion 43 which is fixed to the bonnet support portion 20 .

[0069] With this configuration, the fixing to the bonnet support portion 20 and the provision of rigidity to the mounting stay 40 can be performed by a single portion (the fixing portion 43), which in turn simplifies the structure.

[0070] In addition, the tractor 1 (work vehicle) according to this embodiment is A mounting pin 41a is provided on the mounting stay 40 and protrudes forward from the mounting stay 40; a vibration-isolating member 32d (insertion portion) provided on the side cover 30 and into which the mounting pin 41a is inserted from the rear; It is equipped with the following.

[0071] With this configuration, the mounting pin 41a protrudes rearward of the bonnet 4 on the side opposite the cabin 10, so that the mounting pin 41a is prevented from coming into contact with the cabin 10.

[0072] Moreover, the side cover 30 is A main body portion 31 provided along a side portion of the bonnet 4; The vehicle has a mounting portion 32 formed on the inner side of the main body portion 31 in the vehicle width direction and attached to the mounting stay 40. The mounting portion 32 is It is provided at a position overlapping with the main body portion 31 in side view.

[0073] By configuring it in this manner, it is possible to make the mounting portion 32 less visible from the outside of the vehicle, thereby improving the design of the external appearance.

[0074] In addition, the bonnet support portion 20 is The device is provided with a pair of left and right extension members 21 that extend vertically, The extension member 21 is The stretching member 21 has bent portions (first bent portion 21d and second bent portion 21e) that are bent so that the stretching member lower portion 21c of the stretching member 21 is positioned forward (or rearward) of the stretching member upper portion 21a of the stretching member 21.

[0075] With this configuration, the workability in attaching and detaching the members (for example, the power steering unit 13) disposed below the rotation shaft 4b (opening / closing fulcrum) of the bonnet 4 can be improved.

[0076] In addition, the bonnet support portion 20 is The reinforcing member 22 is provided to reinforce the bent portions (the first bent portion 21d and the second bent portion 21e), The reinforcing member 22 has The mounting stay 40 is fixed.

[0077] By configuring in this manner, the reinforcement of the bent portions (first bent portion 21d and second bent portion 21e) of the extension member 21 and the fixing of the mounting stay 40 can be performed with a single member (reinforcing member 22), thereby simplifying the structure.

[0078] The tractor 1 according to this embodiment is one embodiment of a work vehicle according to the present invention. Moreover, the vibration-isolating member 32d according to this embodiment is one form of the insertion portion according to the present invention. The mounting stay 40 according to this embodiment is one form of a mounting member according to the present invention.

[0079] Although one embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0080] For example, the shapes of each member (bonnet support portion 20, side cover 30, mounting stay 40, etc.) described in the above embodiment are merely examples, and are not limited to the above-mentioned shapes. The shapes of each member can be changed to any shape.

[0081] In addition, in the above embodiment, the extension member 21 is bent at the first bend 21d and the second bend 21e to improve the ease of installing and removing a power steering unit, etc., so that the lower part 21c of the extension member is positioned forward of the upper part 21a of the extension member. However, the lower part 21c of the extension member may be formed to be positioned rearward of the upper part 21a of the extension member.

[0082] In the above embodiment, the tractor 1 is used as an example of the work vehicle, but the work vehicle is not limited to this. For example, the work vehicle may be other agricultural vehicles, construction vehicles, industrial vehicles, etc. [Explanation of symbols]

[0083] 1 Tractor 3 Engine 4. Bonnet 20 Bonnet support 21 Extension member 21a Extension member upper part 21c Lower part of extension member 21d 1st bending part 21e 2nd bending part 22 Reinforcement members 30 Side cover 31 Main body 32 Mounting part 32d Anti-vibration material 40 Mounting stay 41 Base 41a Mounting pin 42 Slope 43 Fixed part

Claims

1. The opening and closing bonnet that covers the engine, a bonnet support portion for supporting an opening / closing fulcrum of the bonnet; A side cover provided along a side portion of the bonnet; an attachment member formed separately from the bonnet support portion and configured to attach the side cover to the bonnet support portion; A work vehicle equipped with the above.

2. The mounting member is A base portion formed in a plate shape and provided with a plate surface facing in the front-rear direction; an inclined portion that is bent from a lower end of the base portion and extends forward and is inclined downward as it extends forward; Equipped with A work vehicle according to claim 1.

3. The inclined portion is It is formed so as to be inclined downward as it goes toward the outer side in the vehicle width direction. The work vehicle according to claim 2.

4. The mounting member is a fixing portion formed to be bent from a side end of the base portion and fixed to the bonnet support portion; The work vehicle according to claim 2.

5. An attachment pin provided on the attachment member and protruding forward from the attachment member; an insertion portion provided on the side cover and through which the mounting pin is inserted from a rear side; Equipped with A work vehicle according to claim 1.

6. The side cover is A main body portion provided along a side portion of the bonnet; A mounting portion is formed on the inner side of the main body in the vehicle width direction and is attached to the mounting member, The mounting portion is The housing is provided at a position overlapping with the main body portion in a side view. A work vehicle according to claim 1.

7. The bonnet support portion is The device includes a pair of left and right extension members extending vertically, The extension member is The extension member has a bent portion that is bent so that a lower portion of the extension member is located forward or rearward of an upper portion of the extension member. A work vehicle according to claim 1.

8. The bonnet support portion is A reinforcing member is provided to reinforce the bent portion, The reinforcing member includes: The mounting member is fixed. A work vehicle according to claim 7.

Citation Information

Patent Citations

  • Work vehicle

    JP2021187220A