Cover

Abstract

To provide a cover that can be easily attached and detached.SOLUTION: A cover 100 which covers a cap 23 that is fitted onto a tip of a supply port 22 (pipe) includes: a first member 110 formed to cover a part of the cap 23; a second member 120 formed to cover another part of the cap 23 and connected to the first member 110 by a hinge part 130 so as to be rotatable relative to each other; and a regulation member 140 that regulates the rotation of the first member 110 and the second member 120.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a technique for a cover that covers a cap that is fitted onto the end of a pipe. [Background technology]

[0002] Conventionally, technology for a cap that is fitted onto the end of a pipe has been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 describes a tractor equipped with a urea water tank for storing urea water. A refill port of the urea water tank is provided with a cap that fits onto the tip of the refill port, and the cap is configured to be removable when refilling the urea water tank with urea water.

[0004] In this case, if the cap is easily removed by a third party, there is a risk that items other than the urea water may be placed in the tank or the urea water may be stolen, so a cover may be provided to cover the cap. Since such a cover is attached and detached as needed, a structure that allows it to be easily attached and detached is required. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2022-2957 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-mentioned circumstances, and a problem to be solved is to provide a cover that can be easily attached and removed. [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 cover according to one embodiment of the present disclosure is a cover that covers a cap that is fitted onto the end of a pipe, and includes a first member formed to cover a portion of the cap, a second member formed to cover another portion of the cap and connected to the first member by a hinge portion so that they can rotate relative to each other, and a restricting member that restricts the rotation of the first member and the second member. According to one aspect of the present disclosure, attachment and detachment can be made easy.

[0009] According to one embodiment of the present disclosure, at least one of the first member and the second member includes a friction reducing portion that reduces friction with the cap. According to one aspect of the present disclosure, it is possible to prevent the cap from being removed while the cover is attached.

[0010] According to one aspect of the present disclosure, the friction reducing portion is a resin surface provided to face the cap. According to one aspect of the present disclosure, it is possible to prevent the cap from being removed while the cover is attached with a simple configuration.

[0011] The resin surface according to one embodiment of the present disclosure includes a first resin surface provided to face an upper surface of the cap. According to one aspect of the present disclosure, even when the cover is rotated while being pressed against the cap, the cover and the cap can be prevented from rotating together.

[0012] The resin surface according to one embodiment of the present disclosure includes a second resin surface provided to face a lower surface of the cap. According to one aspect of the present disclosure, even when the cover is rotated in a lifted state, the cover and the cap can be prevented from rotating together.

[0013] In one embodiment of the present disclosure, the first member includes a first protrusion having a first through hole, and the second member includes a second protrusion capable of abutting with the first protrusion and having a second through hole that communicates with the first through hole when abutted with the first protrusion. According to one aspect of the present disclosure, locking can be easily performed by the locking member.

[0014] The restricting member according to one embodiment of the present disclosure has a third through hole into which the first protrusion and the second protrusion that are in contact with each other are inserted. According to one aspect of the present disclosure, the restricting member can be easily attached.

[0015] In one embodiment of the present disclosure, the hinge portion is arranged so that the rotation axis of the hinge portion is parallel to the axial direction of the pipe, the first member is formed to cover one side of the side of the cap, and the second member is formed to cover the other side of the side of the cap. According to one aspect of the present disclosure, attachment and detachment can be made easier.

[0016] The restricting member according to one embodiment of the present disclosure is connected to the first member or the second member via a string-like member. According to one aspect of the present disclosure, loss of the restricting member can be prevented.

[0017] The pipe according to one aspect of the present disclosure is a refill port for a urea water tank of a work vehicle. According to one aspect of the present disclosure, the cap of a urea water tank of a work vehicle can be covered. [Brief description of the drawings]

[0018] [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. [Diagram 3] FIG. 4 is an exploded top perspective view showing the urea water tank. [Figure 4] 3 is a cross-sectional view taken along line aa-a of FIG. 2 , showing the cap and cover of the urea water tank, etc. [Diagram 5] FIG. 3 is a view taken along arrow b in FIG. 2 , showing the cover. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] 1A is a plan view showing the cover in a closed state, and FIG. 1B is a plan view showing the cover in an open state. [Figure 9] FIG. 11 is a cross-sectional view showing a cover and the like according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] 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.

[0020] First, the overall configuration of a tractor 1 according to one embodiment of the present disclosure will be described.

[0021] The tractor 1 shown in FIG. 1 mainly comprises a machine frame 2, an engine 3, a bonnet 4, a transmission case 5, front wheels 6, rear wheels 7, a fender 8, a lifting device 9, a cabin 10, a urea water tank 20, and the like.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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. A urea water tank 20 is arranged in the lower left part of the cabin 10. The urea water tank 20 is mounted on a mounting frame (not shown) formed by appropriately combining plate materials and the like.

[0027] The urea water tank 20 will be described below with reference to FIGS.

[0028] The urea water tank 20 shown in Figures 2 and 3 is for storing urea water. The urea water tank 20 is connected to an SCR (not shown) that converts nitrogen dioxide into water and nitrogen via a hose or the like. As shown in Figures 2 and 3, the urea water tank 20 includes a urea water tank body 21, a refill port 22, a cap 23, and a cover 100.

[0029] 2 and 3 is a hollow member. The urea water tank body 21 is formed in a substantially rectangular parallelepiped shape.

[0030] The replenishing port 22 shown in Figures 2 to 4 is a pipe for replenishing the urea water tank body 21 with urea water. The replenishing port 22 is formed in a cylindrical shape. The replenishing port 22 is formed so as to extend substantially forward from the left part of the front side surface of the urea water tank body 21 and then bend and extend substantially upward (more specifically, forward and upward). An external thread portion 22a is formed at the upper end of the replenishing port 22.

[0031] The cap 23 shown in Figs. 3 and 4 closes the tip of the supply port 22. The cap 23 is made of resin. The cap 23 is formed in a generally bottomed cylindrical shape, with the open surface facing generally downward. When viewed in the axial direction of the upper part of the supply port 22, the center of the cap 23 is aligned with the axis of the upper part of the supply port 22. In the following, the "upper part of the supply port 22" will be simply referred to as the "supply port 22". A female thread portion (not shown) is formed on the inner peripheral surface of the cap 23, and the female thread portion is screwed into the male thread portion 22a. In this manner, the cap 23 is fitted to the tip of the supply port 22.

[0032] The cover 100 shown in Figs. 2 to 8 covers the cap 23. The cover 100 is substantially entirely made of metal (more specifically, the parts other than the first upper resin plate 115 and the first lower resin member 116). The cover 100 is formed in a substantially octagonal shape in a plan view (see Fig. 8). The cover 100 is formed in a bottomed cylindrical shape with the open surface facing substantially downward. When viewed in the axial direction of the supply port 22, the center of the cover 100 is disposed so as to substantially coincide with the axis of the supply port 22. The cover 100 has a half-split structure, being mainly divided into a first member 110 and a second member 120.

[0033] Although the cover 100 can be attached freely in the circumferential direction of the cap 23, the structure of the cover 100 will be described below based on a state in which the first member 110 is located on the front side and the second member 120 is located on the rear side. In addition to the first member 110 and the second member 120, the cover 100 includes a hinge portion 130, a restricting member 140, and a string-like member 150.

[0034] 3 to 8 is a member formed so as to cover a part of the cap 23. More specifically, the first member 110 is formed so as to cover one side of the side of the cap 23 (one side divided by a line passing through the center of the cap 23 and perpendicular to the axis when viewed in the axial direction of the supply port 22). In this embodiment, the first member 110 is formed so as to cover approximately the front half of the cap 23. The first member 110 includes a first upper surface portion 111, a first side surface portion 112, a first lower surface portion 113, a first protrusion portion 114, a first upper resin plate 115, and a first lower resin member 116.

[0035] 4 to 6 and 8 is a portion that constitutes the upper portion (upper surface) of the first member 110. The first upper surface portion 111 is formed in a plate shape with the plate surface facing in the up-down direction. The first upper surface portion 111 is formed so as to constitute the front half of a substantially octagonal shape in a plan view.

[0036] 4 to 7 is a portion that constitutes the side portion (side surface) of the first member 110. The first side surface portion 112 is formed along the outer circumferential edge of the first upper surface portion 111 (excluding a portion facing a second upper surface portion 121 described later) and extends downward from the outer circumferential edge.

[0037] The first lower surface portion 113 shown in Figs. 4 to 7 is a portion that constitutes the lower portion (lower surface) of the first member 110. The first lower surface portion 113 is formed in a plate shape with the plate surface facing in the up-down direction. The first lower surface portion 113 is formed so as to extend radially inward (radial direction of the supply port 22) from the lower end of the first side surface portion 112. The first lower surface portion 113 is formed so that its radially inner end portion extends to between the outer circumferential surface of the cap 23 and the outer circumferential surface of the supply port 22 (see Fig. 4).

[0038] 5 to 8 is a portion that protrudes leftward from the left surface of the first side surface portion 112. The first protrusion portion 114 is formed in a generally L-shape in plan view. The first protrusion portion 114 includes a first fixing portion 114a and a first contact portion 114b.

[0039] 5, 6, and 8 is a portion fixed to the first side surface portion 112. The first fixed portion 114a is provided with a plate surface facing substantially in the left-right direction. The first fixed portion 114a is formed in a substantially rectangular shape in a side view.

[0040] 5 to 8 is a portion that comes into contact with a second contact portion 124b of a second protrusion 124 of a second member 120, which will be described later. The first contact portion 114b is formed so as to extend leftward from the rear end of the first fixing portion 114a. A first through hole 114c is formed in the first contact portion 114b.

[0041] 5 and 6 is formed to penetrate the first contact portion 114b in the front-rear direction. The first through hole 114c is formed in the middle of the first contact portion 114b from left to right. More specifically, the first through hole 114c is formed to be located entirely to the left of the regulating member 140 when a third through hole 141 of the regulating member 140 described later is inserted through the first protrusion 114 and the second protrusion 124.

[0042] The first upper resin plate 115 shown in Fig. 4 and Fig. 7 is a plate-shaped member made of resin. Preferably, the first upper resin plate 115 is formed of a hard resin. The first upper resin plate 115 is attached to the lower surface of the first upper surface portion 111 at a position facing the upper surface of the cap 23. The first upper resin plate 115 is formed to have a lower friction resistance with respect to the cap 23 than the first upper surface portion 111.

[0043] The first lower resin member 116 shown in Figs. 4 and 7 is a member made of resin. Preferably, the first lower resin member 116 is formed of a hard resin. The first lower resin member 116 is provided so as to cover the circumferential inner end of the first lower surface portion 113. In this way, the first lower resin member 116 is provided so as to face the lower surface of the cap 23. The first lower resin member 116 is formed to have lower friction resistance with respect to the cap 23 than the first lower surface portion 113.

[0044] 3 to 8 is a member formed so as to cover the other portion of the cap 23. More specifically, the second member 120 is formed so as to cover the other side of the side of the cap 23 (the other side divided by a line passing through the center of the cap 23 and perpendicular to the axis when viewed in the axial direction of the supply port 22). In this embodiment, the second member 120 is formed so as to cover approximately the rear half of the cap 23. The second member 120 includes a second upper surface portion 121, a second side surface portion 122, a second lower surface portion 123, a second protrusion portion 124, a second upper resin plate 125, and a second lower resin member 126.

[0045] The second member 120 is formed substantially symmetrically with the first member 110 in the front-rear direction. For this reason, a detailed description of the second member 120 will be omitted. Note that the second upper surface portion 121, the second side surface portion 122, the second lower surface portion 123, the second protrusion portion 124, the second upper resin plate 125, and the second lower resin member 126 of the second member 120 correspond to the first upper surface portion 111, the first side surface portion 112, the first lower surface portion 113, the first protrusion portion 114, the first upper resin plate 115, and the first lower resin member 116 of the first member 110, respectively. Furthermore, the second fixing portion 124a and the second abutment portion 124b of the second protrusion portion 124 correspond to the first fixing portion 114a and the first abutment portion 114b of the first protrusion portion 114, and the second through hole 124c of the second abutment portion 124b corresponds to the first through hole 114c of the first abutment portion 114b.

[0046] The cap 23 can be covered by the first member 110 and the second member 120 configured in this manner (see FIGS. 3 and 4).

[0047] 3 and 5 to 8 allows the first member 110 and the second member 120 to rotate relatively. The hinge portion 130 includes a rotation shaft 131, a shaft support portion 132, an upper surface connection portion 133, and a lower surface connection portion 134.

[0048] 5 to 8 is a part that serves as the rotation center of the first member 110. The rotation shaft 131 is provided to the right of the part where the first member 110 and the second member 120 are joined, with the axis line parallel to the up-down direction (the axial direction of the supply port 22). The rotation shaft 131 is formed to extend from above the first upper surface portion 111 and the second upper surface portion 121 to below the first lower surface portion 113 and the second lower surface portion 123.

[0049] The shaft support part 132 shown in Fig. 5 to Fig. 7 is a part that rotatably supports the rotating shaft 131. The shaft support part 132 is formed in a cylindrical shape. The shaft support part 132 is provided so that its axis coincides with the axis of the rotating shaft 131. The shaft support part 132 rotatably supports the rotating shaft 131 on its inner side. The shaft support part 132 is fixed to the second member 120 at its side surface.

[0050] 5, 6, and 8 is a portion that is connected to the first upper surface portion 111 of the first member 110. The upper surface connection portion 133 is formed in a plate shape with the plate surface facing in the vertical direction. The rotation shaft 131 is inserted into the right portion of the upper surface connection portion 133. The left portion of the upper surface connection portion 133 is fixed to the upper surface of the first upper surface portion 111.

[0051] 5, 7, and 8 is a portion that is connected to the first lower surface portion 113 of the first member 110. The lower surface connection portion 134 is formed in a plate shape with the plate surface facing in the up-down direction. The rotation shaft 131 is inserted into the right portion of the lower surface connection portion 134. The left portion of the lower surface connection portion 134 is fixed to the lower surface of the first lower surface portion 113.

[0052] By providing the hinge portion 130 in this manner, the first member 110 and the second member 120 can be rotated relatively around the axis of the rotation shaft 131. By rotating the first member 110 and the second member 120 relatively, it is possible to switch between a state in which the left portions (the portions opposite to the side where the hinge 130 is provided) of the first member 110 and the second member 120 are closed (see FIG. 8(a)) and a state in which the left portions of the first member 110 and the second member 120 are open (see FIG. 8(b)). In a state in which the left portions of the first member 110 and the second member 120 are closed, the first protrusion portion 114 and the second protrusion portion 124 come into contact with each other, and the first through hole 114c and the second through hole 124c are in communication with each other.

[0053] 3 and 5 to 7 restricts the rotation of the first member 110 and the second member 120. The restricting member 140 is formed in a generally rectangular plate shape in a side view. The restricting member 140 includes a third through hole 141.

[0054] 6 and 7 is a portion into which the first protrusion 114 and the second protrusion 124, which are in contact with each other, are inserted. The third through hole 141 is formed so as to penetrate the restricting member 140 in the left-right direction. The third through hole 141 is formed in a generally rectangular shape in a side view with its longitudinal direction facing the up-down direction.

[0055] The string-like member 150 is a member formed in a string shape. One end of the string-like member 150 is fixed to the second member 120, and the other end is fixed to the regulating member 140. In this way, the string-like member 150 connects the second member 120 and the regulating member 140. This makes it possible to prevent the regulating member 140 from being lost.

[0056] A method for attaching the cover 100 will now be described.

[0057] First, the first member 110 and the second member 120 are rotated relatively around the rotation shaft 131 of the hinge portion 130 to bring the left parts of the first member 110 and the second member 120 into an open state (see FIG. 8(b)). Then, the cap 23 is fitted between the first upper surface portion 111 and the second upper surface portion 121 and the first lower surface portion 113 and the second lower surface portion 123 to bring the left parts of the first member 110 and the second member 120 into a closed state (see FIG. 8(a)). Then, the first protrusion portion 114 and the second protrusion portion 124 come into contact with each other, and the first through hole 114c and the second through hole 124c are in communication with each other.

[0058] Then, the restricting member 140 is attached so that the first protrusion 114 and the second protrusion 124 are inserted into the third through-hole 141. Then, the hasp of the locking member 24 (e.g., a padlock) shown in Fig. 3 is inserted into the first through-hole 114c and the second through-hole 124c to lock the cap 23, thereby preventing the cap 23 from being removed by a third party.

[0059] In this way, the top, side and bottom surfaces of the cap 23 can be covered by, for example, rotating the first member 110 and the second member 120 relative to one another, so that the cover 100 can be easily attached and detached.

[0060] In addition, the first upper surface portion 111 of the first member 110 is provided with a first upper resin plate 115 on a surface facing the upper surface of the cap 23, and the second upper surface portion 121 of the second member 120 is provided with a second upper resin plate 125 on a surface facing the upper surface of the cap 23. As a result, among the surfaces of the first upper surface portion 111 and the second upper surface portion 121 facing the cap 23, the parts where the first upper resin plate 115 and the second upper resin plate 125 are provided have reduced friction resistance against the cap 23 compared to the parts where the first upper resin plate 115 and the second upper resin plate 125 are not provided. Therefore, even if the cover 100 is rotated in a state where the first upper surface portion 111 or the second upper surface portion 121 of the cover 100 is pressed against the cap 23, it is possible to suppress the cover 100 and the cap 23 from rotating together. Therefore, it is possible to prevent the cap 23 together with the cover 100 from being removed to open the supply port 22, and it is possible to prevent the erroneous supply of something other than urea water and the theft of urea water.

[0061] In addition, the first lower surface portion 113 of the first member 110 is provided with a first lower resin member 116 on a surface facing the lower surface of the cap 23, and the second lower surface portion 123 of the second member 120 is provided with a second lower resin member 126 on a surface facing the lower surface of the cap 23. As a result, the frictional resistance against the cap 23 is reduced in the portions of the surfaces of the first lower surface portion 113 and the second lower surface portion 123 facing the cap 23 where the first lower resin member 116 and the second lower resin member 126 are provided, compared to the portions where the first lower resin member 116 and the second lower resin member 126 are not provided. Therefore, even if the cover 100 is rotated in a lifted state, it is possible to suppress the cover 100 and the cap 23 from rotating together. Therefore, it is possible to prevent the cap 23 from being removed together with the cover 100 and the supply port 22 from being opened, and thus it is possible to prevent the erroneous injection of something other than urea water and the theft of urea water.

[0062] Since the cover 100 and the cap 23 can be prevented from rotating together in this manner, there is no need to provide the urea water tank body 21 with a structure (such as a groove) for preventing rotation of the cover 100. Therefore, the cover 100 can be provided without restrictions on the shape of the urea water tank 20, and the cover 100 can be applied to existing urea water tanks 20.

[0063] As described above, the cover 100 according to this embodiment has the following features: A cover 100 for covering a cap 23 fitted to the tip of a supply port 22 (pipe), A first member 110 formed so as to cover a part of the cap 23; a second member 120 formed to cover the other portion of the cap 23 and connected to the first member 110 by a hinge portion 130 so as to be mutually rotatable; A restricting member 140 that restricts the rotation of the first member 110 and the second member 120; It is equipped with the following.

[0064] Such a configuration makes it easy to attach and detach. Specifically, the cover 100 can be attached to the cap 23 by rotating the first member 110 and the second member 120 to a closed state. On the other hand, the cover 100 can be removed from the cap 23 by rotating the first member 110 and the second member 120 to an open state.

[0065] In addition, at least one of the first member 110 and the second member 120 is The cap 23 is provided with friction reducing portions (first upper resin plate 115, first lower resin member 116, second upper resin plate 125, and second lower resin member 126) that reduce friction with the cap 23.

[0066] With this configuration, it is possible to prevent the cap 23 from being removed while the cover 100 is attached. Specifically, it is possible to prevent the cover 100 and the cap 23 from rotating together when the cover 100 and the cap 23 are in contact with each other.

[0067] In addition, the friction reduction portion is These are resin surfaces (first upper resin plate 115, first lower resin member 116, second upper resin plate 125, and second lower resin member 126) provided to face the cap 23.

[0068] With this configuration, it is possible to prevent the cap 23 from being removed with the cover 100 attached, with a simple configuration.

[0069] In addition, the resin surface is It includes a first resin surface (a first upper resin plate 115 and a second upper resin plate 125 ) provided so as to face the upper surface of the cap 23 .

[0070] With this configuration, even if the cover 100 is rotated while being pressed against the cap 23, it is possible to prevent the cover 100 and the cap 23 from rotating together.

[0071] In addition, the resin surface is It includes a second resin surface (first lower resin member 116 and second lower resin member 126 ) provided so as to face the lower surface of the cap 23 .

[0072] With this configuration, even if the cover 100 is rotated in a lifted state, the cover 100 and the cap 23 can be prevented from rotating together.

[0073] In addition, the first member 110 is A first protrusion 114 having a first through hole 114c is provided. The second member 120 is The second protrusion 124 is capable of coming into contact with the first protrusion 114 and has a second through hole 124c that communicates with the first through hole 114c when the first protrusion 114 comes into contact with the second protrusion 124.

[0074] With this configuration, locking by the locking member 24 can be easily performed.

[0075] In addition, the regulating member 140 is It has a third through hole 141 into which the first protrusion 114 and the second protrusion 124, which are in contact with each other, are inserted.

[0076] With this configuration, the restriction member 140 can be easily attached.

[0077] In addition, the hinge portion 130 is The hinge portion 130 has a rotation axis 131 that is parallel to the axial direction of the supply port 22. The first member 110 is It is formed so as to cover one side of the side surface of the cap 23, The second member 120 is It is formed so as to cover the other side of the cap 23 .

[0078] Such a configuration makes it easier to attach and detach.

[0079] In addition, the regulating member 140 is It is connected to the first member 110 or the second member 120 via a string-like member 150 .

[0080] With this configuration, it is possible to prevent the restriction member 140 from being lost.

[0081] The pipe is also This is a refill port 22 for a urea water tank 20 of a tractor 1 (work vehicle).

[0082] With this configuration, the cap 23 of the urea water tank 20 of the tractor 1 (work vehicle) can be covered.

[0083] The tractor 1 according to this embodiment is one embodiment of a work vehicle according to the present invention. Moreover, the supply port 22 according to this embodiment is one form of a pipe according to the present invention. Moreover, the first upper resin plate 115, the first lower resin member 116, the second upper resin plate 125, and the second lower resin member 126 according to this embodiment are one form of a friction reducer according to the present invention.

[0084] 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.

[0085] For example, the shapes of each member (first member 110, second member 120, restricting member 140, 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.

[0086] In addition, in the above embodiment, the friction reduction portions (first lower resin member 116, second upper resin plate 125 and second lower resin member 126) are formed from resin, but the material of the friction reduction portions can be any material that can reduce frictional resistance against cap 23 compared to a portion where the friction reduction portions are not provided.

[0087] In addition, in the above embodiment, the first member 110 and the second member 120 are formed of metal, and some parts (the first lower resin member 116, the second upper resin plate 125, and the second lower resin member 126) are formed of resin, but the entire cover 100 may be formed of resin.

[0088] In the above embodiment, the rotation axis 131 of the hinge portion 130 is provided so as to be parallel to the axial direction of the supply port 22, the first member 110 is formed so as to cover one side of the side of the cap 23, and the second member 120 is formed so as to cover the other side of the side of the cap 23, but the structure of the cover 100 is not limited to that of the above embodiment. For example, as in the cover 100A shown in FIG. 9, the rotation axis 131A of the hinge portion 130A may be provided so as to be perpendicular to the axial direction of the supply port 22, the second member 120A is formed so as to cover the lower surface of the cap 23, and the first member 110A is formed so as to cover the side and upper surface of the cap 23.

[0089] In addition, in the above embodiment, the cover 100 covers the cap 23 of the urea water tank 20, but it may also cover the cap of a fuel tank, or it may cover a cap that is fitted onto the end of another pipe.

[0090] 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]

[0091] 1 Tractor 20. Urea tank 22 Supply port 23 Cap 24 Locking member 100 Cover 110 First member 114 1st protrusion 114c 1st through hole 115 First upper resin plate 116 First lower resin member 120 Second member 124 2nd protrusion 124c 2nd through hole 125 Second upper resin plate 126 Second lower resin member 130 Hinge part 131 Rotational axis 140 Regulatory components 141 3rd Through Hole 150 String-like member

Claims

1. A cover for covering a cap fitted to a tip of a pipe, A first member formed to cover a portion of the cap; a second member formed to cover the other portion of the cap and connected to the first member by a hinge portion so as to be mutually rotatable; a restricting member that restricts rotation of the first member and the second member; Equipped with cover.

2. At least one of the first member and the second member is A friction reducing portion that reduces friction with the cap is provided. The cover of claim 1.

3. The friction reduction portion is A resin surface provided to face the cap. The cover according to claim 2.

4. The resin surface is A first resin surface is provided so as to face an upper surface of the cap. The cover according to claim 3.

5. The resin surface is a second resin surface provided to face a lower surface of the cap; The cover according to claim 4.

6. The first member is A first protrusion having a first through hole, The second member is a second protrusion capable of contacting the first protrusion and having a second through hole communicating with the first through hole when the second protrusion is in contact with the first protrusion; The cover of claim 1.

7. The regulating member is a third through hole into which the first protrusion and the second protrusion that are in contact with each other are inserted; The cover according to claim 6.

8. The hinge portion is The hinge portion is provided so that a rotation axis of the hinge portion is parallel to an axial direction of the pipe, The first member is The cap is formed so as to cover one side of the side surface thereof, The second member is The cap is formed so as to cover the other side of the side surface thereof. The cover of claim 1.

9. The regulating member is The first member or the second member is connected via a string-like member. The cover of claim 1.

10. The pipe is This is the refill port for the urea water tank of the work vehicle. A cover according to any one of claims 1 to 9.

Images