JP2017093333A - Operation part of work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation part of a work vehicle including a front operation part arranged on a front part of a seat and a travel gear shift lever arranged on a side or obliquely front part of the seat and capable of arranging a plurality of operation tools with excellent operability.SOLUTION: An operation part of a work vehicle includes: an operation panel 27 arranged on an upper face side of a front operation part 16 detachably in a separate body and including a plurality of operation tools; and a travel gear shift lever 26 arranged on a just rear side of the operation panel 27 and on a side or obliquely front part of the seat 14 and capable of being operated so as to be oscillated forward/rearward. A fixing part 33 screw-fixing the operation panel 27 is arranged at a position on a lower side of the travel gear shift lever 26 oscillated to a foremost position in the front operation part 16 and inclined forward.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a control unit of a work vehicle.

  In a work vehicle such as a combine equipped with a front operation unit arranged on the front side of the seat and a traveling shift lever arranged on the side or obliquely forward of the seat and capable of swinging back and forth, various settings for work and traveling Many operation tools are provided for the purpose of performing and operations (see, for example, Patent Document 1).

JP 2009-159892 A

  However, since the operation unit of the work vehicle described in the above document has many operation tools arranged behind the traveling speed change lever, when operating these operation tools and when maneuvering while looking forward, There is a case where the line of sight is largely changed before and after, and there is a problem that the operability is poor.

  The present invention is a control unit for a work vehicle including a front operation unit disposed in front of a seat and a traveling speed change lever disposed on a side or obliquely forward of the seat, and operates a plurality of operation tools. It is an object of the present invention to provide a control unit for a work vehicle that can be provided with good performance.

  In order to solve the above problems, a front operation unit disposed on the front side of the seat, an operation panel separately provided on the upper surface side of the front operation unit and provided with a plurality of operation tools, and the operation A travel speed change lever that is disposed directly behind the panel and on the side of the seat or diagonally forward and can be operated to swing forward and backward. The lower portion is provided with a fixing portion for fixing the operation panel with screws.

  In the front operation part, an installation insertion part for fitting and inserting the outer peripheral edge side of the operation panel is formed, and either one of the outer peripheral edge side of the operation panel and the peripheral edge side of the installation insertion part is An engaging claw may be formed, and an engaged portion to which the engaging claw is detachably engaged may be formed on the other side.

  A lever operating tool is supported in a swingable manner at a portion of the front operating section where the operating panel is installed in plan view, and a lever inserting section through which the lever operating tool is inserted to project upward is provided on the operating panel. An opening may be formed.

  A receiving portion recessed downward may be provided in a recessed portion in a portion of the front operation portion located below the traveling transmission lever that is swung to the foremost position and tilted forward.

  Since the operation panel allows a plurality of operation tools to be unitized and concentratedly arranged in front of the traveling shift lever, the frequency of operations can be increased while observing the front, and the operability of the plurality of operation tools is increased. Since the fixing portion for fixing the operation panel with a screw is provided at the lower portion of the front operating portion that is swung to the foremost position and tilted forward, the traveling speed change lever is provided. The dead space portion required for the swinging operation can be effectively utilized as the mounting space, and efficient arrangement becomes possible.

  In the front operation part, an installation insertion part for fitting and inserting the outer peripheral edge side of the operation panel is formed, and either one of the outer peripheral edge side of the operation panel and the peripheral edge side of the installation insertion part is According to the one in which the engaging claw is formed and the engaged portion on which the engaging claw is detachably engaged is formed on the other side, the operation panel and the fixing screws are reduced. However, it can be securely attached to the front operating unit with high strength and detachable.

  A lever operating tool is supported in a swingable manner at a portion of the front operating section where the operating panel is installed in plan view, and a lever inserting section through which the lever operating tool is inserted to project upward is provided on the operating panel. According to the formed opening, the lever operation tool can be arranged at a position overlapping with the operation panel in a plan view, and moreover, space can be used effectively, and not on the operation panel side but on the front operation unit side. Since it supports, support strength also becomes high.

  In the front operation part, the lower part of the traveling speed change lever that is swung to the foremost position and tilted forward is provided with a recessed portion that is recessed downward. The resulting dead space can be effectively used as a storage space.

It is a whole side view of the self-removing combine to which the present invention is applied. It is a top view of a control part. It is a top view which shows the principal part structure of a front operation panel. It is a perspective view which shows the state which removed the switch operation panel from the front operation panel. It is a disassembled perspective view of a switch operation panel and a front operation panel. It is a perspective view of the upper surface side which shows the attachment structure of a switch operation panel concretely. It is a principal part expansion perspective view of FIG. It is a perspective view of the lower surface side which shows the attachment structure of a switch operation panel concretely. It is a principal part expansion perspective view of FIG. (A) thru | or (D) is a top view which shows the structure of a respectively different display sheet. It is a perspective view of the lower surface side which shows the state which mounts a touchscreen type liquid crystal panel as a display panel. It is a perspective view of the lower surface side which shows the state which mounts a meter panel as a display panel. (A) is a top view which shows the structure of a recessed part, (B) is AA sectional drawing of (A). It is a top view which shows the state which put the palm in the recessed part. It is a sectional side view which shows the structure of another embodiment of a switch operation panel. It is a disassembled perspective view which shows the structure of another embodiment of a switch operation panel.

  FIG. 1 is an overall side view of a self-removing combine to which the present invention is applied. The combine shown in the figure is a kind of work vehicle. The combine includes a traveling machine body 2 in which a machine body frame 2a is supported by a pair of left and right crawler type traveling devices (traveling units) 1L and 1R, and the traveling machine body 2 And a pre-processing unit 3 that is connected to the front part so as to be able to move up and down and performs the harvesting operation of the cereals in the field.

  In the traveling machine body 2, the threshing device 4 is disposed on the left half of the traveling direction on the machine body frame 2a (hereinafter simply “left”), and the control unit 6 (see FIG. 2) is disposed on the front half of the right half. A covering cabin 7 is erected, and a glen tank 8 is disposed behind the cabin 7 and on the right side of the threshing device 4.

  The threshing device 4 has an annular feed chain 9 that is long in the front-rear direction on the outer side. During the forward traveling of the combine, the cereals harvested by the preprocessing unit 3 are passed to the feed chain 9. The feed chain 9 pinches and holds the stock side of the cereal with the tip pointed to the inside of the threshing device 4 and conveys it backward.

  In the process of rearward conveyance by the feed chain 9, the cereal is threshed to become waste, and is further conveyed rearward by the waste conveyor 11, and is discharged from the rear end of the traveling machine body 2 as it is. After the cutting process, the vehicle is discharged from the rear end of the traveling machine body 2 to the outside of the machine.

  On the other hand, the processed product threshed from the cereal basket is sorted by swinging in the threshing device 4 or by a sorting wind, and sorted into wastes such as swarf and grains such as straw. The grain is conveyed and stored in the Glen tank 8. The discharged matter is discharged out of the machine from the rear end of the traveling machine body 2.

  The grain in the Glen tank 8 is discharged out of the machine by the auger 10. The auger 10 is supported on the rear end side of the traveling machine body 2 so that the auger 10 can swing up and down and turn left and right. Is discharged.

  The combine has a function of inclining the traveling machine body 2 with respect to the left and right crawler traveling devices 1L and 1R. At the front and rear of each of the crawler type traveling devices 1L and 1R, one end portions of elevating links (elevating means) 12 and 13 swinging up and down are supported, respectively, and the other end portions of the elevating links 12 and 13 are respectively connected to the traveling machine body 2. Is supported on the side of the body frame 2a.

  The front and rear elevating links 12 and 13 are driven to swing up and down by an actuator such as a hydraulic cylinder (not shown) to raise and lower the left and right sides of the traveling machine body 3 with respect to the crawler type traveling devices 1L and 1R.

  The traveling machine body 2 can be tilted to the left and right crawler type traveling devices 1L and 1R by two lifting links 12 and 13 respectively provided on the left and right crawler type traveling devices 1L and 1R (in this example, left and right inclined). Supported).

  For example, when one of the pair of crawler type traveling devices 1L, 1R is raised to a higher position than the other, the traveling machine body 2 is switched to a left-right inclined posture inclined downward from the one side toward the other side. Further, if the left and right lifting links 12, 12, 13, and 13 are both lifted and lowered, the traveling machine body 2 is lifted and lowered with respect to the left and right crawler traveling devices 1L and 1R.

  FIG. 2 is a plan view of the control unit. The control unit 6 in the cabin 7 includes a seat 14 on which an operator is seated, a front operation panel (front operation unit) 16 disposed in front of the seat 14, and a side (more specifically, left side) of the seat 14. ) And a side operation panel (side operation unit) 17 on which various dial operation tools are arranged, and a floor step 18 which is a floor formed between the seat 14 and the front operation panel 16 in plan view. Have.

  An entrance / exit 6a is formed on the side opposite to the side operation panel 17 across the seat 14 in the control unit 6. The operator opens and closes an opening / closing door (not shown) of the cabin 7 to get on and off the control unit 6 through the entrance 6a.

  The front operation panel 16 is a synthetic resin cover body that covers the upper surface side of the front cover 6b that covers the front of the seat 14. The front operation panel 16 is obliquely forward (left) from the front in front of the seat 14 in plan view. It is formed in an L shape in a range up to (slant front).

  In other words, the front operation panel 16 includes a front portion 19 that is positioned in front of the seat 14 and extends in the left-right direction, a side portion 21 that is positioned diagonally to the left of the seat 14 and extends in the front-rear direction, and the front portion 19. The side part 21 side end part and the front end part of the side part 21 are comprised from the corner part 22 integrally formed between both so that it may connect.

  A multi-lever 23 is installed on one side of the front portion 19 (on the right side of the entrance 7a and specifically on the right side), and a display panel (panel member) 24 is fitted and fixed on the other side.

  The multi-lever 23 functions as an elevating lever that moves the pre-processing unit 3 up and down by swinging back and forth, and also operates a left and right turning operation (steering operation) of the traveling machine body 2 moving forward and backward by a left and right swing operation. It functions as a direction lever.

  In the example shown in FIG. 2, the display panel 24 is a touch panel type liquid crystal panel and can display various information such as a vehicle speed. The display panel 24 is attached and fixed from the lower surface side of the front operation panel 16. The front portion 19 is provided with a display hole 19a that exposes a display surface (and a touch operation surface) formed at the center of the upper surface of the display panel 24 fixed as described above.

  The side portion 21 is provided with a sub shift lever (travel shift lever) 25 that performs travel shift switching via a transmission, and a main shift lever (travel shift lever) 26 that performs travel shift switching via HST. . The power transmission path is connected in series between the HST and the trench mission. When either one of the auxiliary transmission lever 25 and the main transmission lever 26 is operated to the neutral position, the power from the engine is not transmitted to the crawler type traveling devices 1L and 1R. Incidentally, the neutral position of the main transmission lever 26 is set to the neutral position of the forward / backward swing range.

  Further, by swinging and tilting the main transmission lever 26 to the left and right sides (right side in the illustrated example) at the neutral position, the main shift lever 26 can be swung forward from the neutral position, while the other By swinging and tilting to the side, it is possible to swing backward from the neutral position.

  As the forward swinging amount of the main transmission lever 26 from the neutral position increases, the forward driving power is increased and transmitted to the left and right crawler type traveling devices 1L and 1R. As the amount of backward swing from the neutral position increases, the power for reverse travel is increased and transmitted to the left and right crawler travel devices 1L, 1R.

  Incidentally, a lever hole 21a through which the auxiliary transmission lever 25 is inserted is formed in the side portion 21 along the swinging range of the auxiliary transmission lever 25, and a lever hole 21b through which the main transmission lever 26 is inserted is formed in the side portion 21. An opening is formed in a crank shape along the swing operation range of the transmission lever 26, and

  A switch operation panel (operation panel) 27 is separately and detachably attached to the corner portion 22 (on the front operation panel 16) so as to be located in front of the main transmission lever 26. 27, a plurality of switch operation tools (operation tools) are installed.

  Next, the configuration of the switch operation panel 27 will be described with reference to FIGS.

  3 is a plan view showing the configuration of the main part of the front operation panel, FIG. 4 is a perspective view showing a state where the switch operation panel is removed from the front operation panel, and FIG. 5 is a diagram showing the switch operation panel and the front operation. It is a disassembled perspective view of a panel.

  As shown in FIGS. 2 to 5, the switch operation panel 27 includes a synthetic resin panel body 28 formed in a thick plate shape, and a display sheet 29 laid on the upper surface side of the panel body 28 (see FIG. 10). ). The panel main body 28 (switch operation panel 27) is fitted and inserted into an installation hole (installation insertion portion) 30 formed in the corner portion 22 of the front operation panel 16 and fixed.

  A large number of frequently used switch operating tools are intensively installed on the switch operation panel 27, and the traveling body 2 is tilted left and right with respect to the crawler traveling devices 1L and 1R by the elevating links 12 and 13. Alternatively, a tilt operation lever (lever operation tool) 31 that performs an operation of tilting back and forth is disposed.

  The tilt operation lever 31 is supported at its lower end side by the installation hole 30 side (portion where the switch operation panel 27 is installed) of the front operation panel 16 so that the swing operation lever 31 is swingable. The operation panel 27) is provided with an insertion hole (lever insertion portion) 28a through which the tilt operation lever 31 is inserted to protrude upward. In other words, the tilt operation lever 31 arranged at a position overlapping the switch operation panel 27 in a plan view is supported not on the switch operation panel 27 but on the front operation panel 16 side.

  Specifically, a lever support portion 32 that protrudes toward the installation hole 30 is integrally formed from the inner surface side of the peripheral wall of the front operation panel 16, and the lever support portion 32 is interposed via the installation hole 30. The front operation panel 16 can be accessed from the upper surface side.

  This lever support part 32 is comprised from the cylindrical part 32a which protrudes upwards, and the flange-shaped attachment part 32b integrally molded by the lower end part of the cylindrical part 32a. The mounting portion 32b is bolted to a control frame (not shown) of the control unit 6 so that the front operation panel 16 is stably supported by the control frame. Incidentally, the control frame is firmly attached and fixed to the airframe frame 2a.

  The lower end portion of the tilt operation lever 31 is supported by the front operation panel 16 so as to be swingable by being inserted into the cylindrical portion 32a from above. The tilt operation lever 31 performs the tilt operation of the traveling machine body 2 by swinging. At this time, the mounting portion 32b that supports the tilt operation lever 31 is a portion that supports the front operation panel 16 on the control frame. Since it is integrally formed on the attachment portion 32b side, high strength can be maintained.

  Further, a horizontal plate-like support piece (fixed part) 33 is formed integrally and projecting forward from the rear inner surface of the corner portion 22 of the front operation panel 16. Thus, it is exposed upward from the installation hole 30. Due to the above configuration, the support piece 33 is positioned within a swing range (front-rear swing range, range) D in the plan view of the main transmission lever 26 disposed on the rear side.

  More specifically, the support piece 33 is disposed and formed in a portion located immediately below the main transmission lever 26 that is swung to the foremost position and tilted forward (inclined forward) on the front operation panel 16. ing. Note that if the main transmission lever 26 is positioned below the main transmission lever 26 that is swung to the foremost position and tilted forward, the main transmission lever 26 is slightly shifted to the left or right from the front-rear swing range D. Further, the support piece 33 may be arranged and formed.

  On the other hand, the switch operation panel 27 is integrally formed with a recess 34 that is recessed downward. The bottom portion of the recess 34 is formed into a flat plate shape that conforms to the planar view shape of the support piece 33 described above.

  Then, the tilt operation lever 31 supported by the lever support portion 32 is inserted into the insertion hole 28a, and at least the bottom of the recess 34 of the switch operation panel 27 is overlapped with the upper surface of the support piece 33 so that the switch operation panel 27 (more specifically, the outer peripheral edge side) is fitted and inserted into the installation hole 30 (more specifically, the inner peripheral surface side) of the front operation panel 16. The switch operation panel 27 is attached and fixed to the front operation panel 27 by screwing the bottom part to the support piece 33 so as to be detachable.

  Thus, when the switch operation panel 27 is attached to the front operation panel 27, the tilt operation lever 31 supported on the front operation panel 16 side is moved upward from the upper surface of the switch operation panel 27 through the insertion hole 28a. Since it protrudes and can be swung, even when the tilt operation lever 31 is disposed at a position overlapping the switch operation panel 27 in plan view, the support can be maintained in a high state.

  Further, since the switch operation panel 27 covers and hides the attachment portion (specifically, the attachment portion 32b) of the front operation panel 16 to the control frame, the attachment operation is not performed without impairing the design. Damage to the portion 32b can also be prevented.

  Further, the lower side of the main transmission lever 26 that is swung forward and tilted forward is apt to become a dead space on the upper surface of the front panel and the operation panel 16, but the concave portion 34 that is screwed to the support piece 33. Is located in the dead space in a plan view, so that the dead space is effectively utilized and contributes to the efficient arrangement of the members. In addition, the recess 34 can be used as a storage space for storing a remote control and small items. It may be formed into a shape that fits an object to be accommodated.

  Next, the mounting structure of the switch operation panel 27 will be described in more detail with reference to FIGS.

  6 is a top perspective view specifically showing the mounting structure of the switch operation panel, FIG. 7 is an enlarged perspective view of the main part of FIG. 6, and FIG. 8 shows the mounting structure of the switch operation panel. FIG. 9 is an enlarged perspective view of the main part of FIG. 8. The switch operation panel 27 is fitted into the installation hole 30 by screwing the recess 34 to the support piece 33 as well as the outer peripheral edge of the switch operation panel 27 and the inner peripheral edge (peripheral edge) of the installation hole 30. ).

  First, a specific structure in which the bottom portion of the recess 34 is detachably screwed to the support piece 33 will be described. Insertion holes 34a through which bolts are inserted into the four corners of the bottom portion of the recess 34 formed in a rectangular plate shape. Are respectively drilled. On the other hand, when the concave portion 34 is fixed to the support piece 33 with screws, insertion holes 33a through which screws are inserted are formed in the respective portions of the support piece 33 that coincide with the insertion holes 34a in plan view.

  Further, on the lower surface side of the support piece 33, a nut installation space (installation portion) 33 b for expanding the lower end portion of the insertion hole 33 a is formed for each insertion hole 33 a. In the nut installation space 33b, the nut 36 is inserted and positioned from the side in a fitted state.

  When the nut 36 is fitted and accommodated in the nut installation space 33b to be positioned and fixed, the screw hole of the nut 36 and the insertion hole 33a coincide with each other in plan view. In this state, each insertion hole 34a formed in the recess 34 of the switch operation panel 27 is aligned with the position of the corresponding insertion hole 33a of the support piece 33 in plan view, and a screw (not shown) is inserted and tightened. The switch operation panel 27 is detachably screwed to the support piece 33 (front operation panel 16).

  Next, the engagement between the outer peripheral edge of the switch operation panel 27 and the inner peripheral edge of the installation hole 30 will be described. Either the outer peripheral edge of the switch operation panel 27 or the inner peripheral edge of the installation hole 30 will be described. On one side (in the illustrated example, an engagement claw) 37 is formed to protrude at predetermined intervals on the inner peripheral edge of the installation hole 30, and on the other side, the engagement claw 37 is engaged and disengaged. An engaged portion 38 formed in a notch shape that can be engaged is formed.

  When the outer peripheral edge portion of the switch operation panel 27 is fitted and inserted into the inner peripheral edge portion of the installation hole 30, the corresponding engaging claw 37 and the engaged portion 38 are engaged with each other in a detachable manner. The outer peripheral side of the operation panel 27 is locked to the inner peripheral side of the installation hole 30. In this way, after the switch operation panel 27 is engaged with the installation hole 30 and locked, the bolts are fixed to the support pieces 33 of the recesses 34 described above.

  Next, the configuration of the switch operation panel 27 on the display sheet 29 side will be described with reference to FIG.

  FIGS. 10A to 10D are plan views showing the structures of different display sheets. The display sheet 29 is provided with exposure holes 29a and 29b for exposing various switch operation tools installed on the panel body 28 and the tilt operation lever 31 to the upper surface side, and the switch operation tool and the tilt operation lever. 31 explanatory drawings and texts are displayed by printing or sticking a sticker.

  For example, in the example shown in FIGS. 4A to 4D, a tilt operation lever 31 is provided, and this tilt operation lever 31 is supported so as to be able to swing back and forth and swing left and right. Thus, while the traveling machine body 2 is operated to tilt left and right with respect to the left and right crawler type traveling devices 1L and 1R, the traveling machine body 2 is moved up and down with respect to the left and right crawler type traveling devices 1L and 1R by a back-and-forth swing operation. These pieces of information are printed (displayed) on the display sheet 29.

  Moreover, the specific example of the switch operating tool to install is as showing to the same figure (A)-(D). For example, what is shown in the same figure (A)-(D) includes a state in which engine power is not transmitted to any of the pretreatment unit 3 and the threshing device 4, a state in which only the threshing device 4 is transmitted, and a preprocessing unit. 3 and a seesaw-type switch (power clutch switch) for switching between the state to be transmitted to the threshing device 4 and automatically to the pre-processing unit 3 along with the pre-processing unit 3 above a predetermined height. A changeover switch (lift shut switch) for switching the presence or absence of lift shut control for stopping power transmission, a dial type operation tool (engine adjustment dial) for adjusting the engine speed, and the like are provided in common. On the other hand, there are a horizontal control changeover switch (horizontal control switch) that holds the left and right horizontal of the traveling machine body 2 on a sloping ground, a tilt operation lever 31 and the like that are provided depending on the model and those that are not provided.

  Depending on the model, when a part of the switch operating tool (specifically, the horizontal control switch) or the tilt operation lever 31 is omitted, the exposed holes 29a and 29b are also omitted, so that the panel This omitted portion of the main body 28 is covered with the display sheet 29 and hidden. For example, the display sheet 29 shown in FIG. 4D omits the tilt operation lever 31, so the exposure hole 29 a for the total tilt operation lever 31, its explanatory drawing and text are omitted, and the display sheet 9 Covered.

  According to this configuration, it is possible to manufacture a different switch operation panel 27 by using the panel body 28 in common, and the manufacturing cost can be reduced. Also, frequently used switch operation tools are concentrated on the detachable switch operation panel 27, and the switch operation panel 27 is positioned in front of the operator so that it is easy to operate. It is.

  Next, a display panel mounting structure will be described with reference to FIGS. 2, 11, and 12.

  FIG. 11 is a bottom perspective view showing a state in which a touch panel type liquid crystal panel is mounted as a display panel, and FIG. 12 is a bottom perspective view showing a state in which a meter panel is mounted as a display panel. As described above, the display panel 24 is attached and fixed from the inner surface (lower surface) side of the front operation panel 16 with the display surface on the upper surface side exposed from the display hole 19a.

  A plurality of types of display panels 24 are prepared corresponding to the model numbers of the combine. The control unit 6 of this example has a structure to which one display panel 24 arbitrarily selected from a plurality of types of display panels 24 can be attached.

  This structure will be specifically described. Each of the plurality of types of display panels 24 is formed in the same shape in plan view, the thickness is set to the same level, and the surface and the shape are the same. On the other hand, the inner peripheral edge of the display hole 19a is shaped so as to conform to the planar view shape of the plurality of types of display panels 24 and slightly smaller than the planar view shape of the display panel 24.

  The inner surface (lower surface) of the front operation panel 16 is integrally formed with an attachment portion 19b for fixing the display panel 24 by screwing. The plurality of types of display panels 24 are portions to be attached to the front operation panel 16. The attached portion 24a is integrally formed.

  A plurality of the mounting portions 19b are arranged at predetermined intervals along the inner peripheral edge of the display hole 19a. Specifically, it is arranged and formed on each of the four corners of the rectangular display hole 19a. On the other hand, each attached portion 24a is formed at the same position as the corresponding attaching portion 19b in plan view when the display panel 24 is installed on the display hole 19a side of the front operation panel 16.

  The attachment portion 19b may be provided individually for each of the plurality of attached portions 24a so as to correspond to all the attached portions 24a, but may be provided so as to correspond to a part thereof. The number and positions of the attachment portions 19b are determined within a range where there is no problem in stably supporting the display panel 24 on the front operation panel 16.

  With the above configuration, it is possible to selectively attach one display panel 24 arbitrarily selected from a plurality of types of display panels 24 to one front operation panel 16.

  Incidentally, as shown in the figure, a liquid crystal panel or a meter panel is assumed as the type of the display panel 24. Further, the meter panel 24 includes a speed meter, a tachometer, and the like.

  Next, the configuration of the recess 31 will be described in detail with reference to FIGS. 13 and 14.

  FIG. 13A is a plan view showing the configuration of the recess, and FIG. 13B is a cross-sectional view taken along the line AA in FIG. The bottom surface of the recess 34 has a horizontal flat shape as described above, and the depth gradually increases toward the front. Specifically, the front part of the inner peripheral surface constituting the recess 23 rises higher from the flat bottom surface than the rear part.

  Moreover, the recessed part 34 is shape | molded by the shape aggregated in one place toward the side (specifically back) where a depth becomes shallow in planar view, and the aggregated part is specifically, the recessed part 34. Left and right outer portions (left portion in the illustrated example). That is, the left and right outer portions of the rear end portion of the recess 34 become the shallowest portion 34b protruding rearward with respect to the left and right inner portions, and the shallowest portion 34b side portion of the inner peripheral surface of the recess 34 is with respect to the bottom surface. It is easy to discharge dust and dirt collected on the bottom surface side of the recess 34. In other words, the shallowest portion 34b is a discharge portion that collects and discharges dust, dust, and the like accumulated on the bottom surface of the recess 34.

  FIG. 14 is a plan view showing a state where the palm is placed in the recess. As shown in the figure, the switch operation tools are arranged on the switch operation panel 27 so that the operation part is positioned on the tip side of the finger when the palm H is placed on the recess 34 forming part of the switch operation panel 27. Has been.

  Next, based on FIG.15 and FIG.16, about another embodiment of the switch operation panel 27, a different part from the above-mentioned form is demonstrated.

  15 and 16 are a side sectional view and an exploded perspective view showing a configuration of another embodiment of the switch operation panel. The recess 34 formed in the panel main body 28 of the switch operation panel 27 shown in these drawings is formed with an insertion hole 34c on the center side of the bottom, and its closed cross-sectional shape is formed in a square shape.

  An accommodation case 39 in the vertical direction that accommodates the information terminal (specifically, a mobile phone such as a smartphone) T in the vertical direction is fitted and installed in the recess 34. The housing case 39 includes a case main body 41 having an upper opening, and a plate-shaped opening / closing lid 42 that opens and closes the opening of the case main body 41.

  The case main body 41 includes an insertion portion 41a that is inserted downward from the insertion hole 34c, and a fitting portion 41b that is located immediately above the insertion portion 41a and that has a flat cross-section enlarged so as to be fitted and received in the recess 34. And an engaging portion 41c formed in a flange shape at the upper end of the fitting portion 41b (in this example, integrally).

  Further, the inside of the case body 41 is hollow, and the inside of the case body 41 on the side of the insertion portion 41a is fitted with a thick plate-like smartphone T with the thickness direction facing back and forth. The flat cross-sectional shape is formed into a substantially long rectangular shape in the left-right direction so that it can be inserted. When the smartphone T is inserted into the insertion part 41 at the maximum, the smartphone T is completely accommodated in the case body 41.

  The open / close lid 42 is connected to the locking portion 41c of the case body 41 so as to be vertically rotatable by an integrally formed hinge portion 42a. Then, the upper opening portion of the case body 41 is opened and closed by the vertical rotation of the opening / closing lid 42, and the lock portions 43, 44 for releasably locking the opening / closing lid 42 in the closed state include the case body 41 and Each is formed integrally with the opening / closing lid 42.

  When the insertion portion 41a of the housing case 39 having the shape is inserted through the insertion hole 34c of the recess 34 to the maximum extent, the fitting portion 41b is fitted and positioned in the recess 34, and the locking portion 41c is positioned in the panel body. It is hooked and locked on the upper surface side of 28. In this state, opening / closing by the opening / closing lid 42 is possible, and by this opening / closing, the smartphone T can be accommodated and taken out. Incidentally, the open / close lid 42 in the closed state is in a horizontal state along the upper surface of the panel main body 28.

  The object to be accommodated is not limited to the smartphone T, but an auger remote control (not shown) that remotely controls the auger 10 to turn left and right or swing up and down is fitted and accommodated in the accommodation case 39. Alternatively, the auger remote controller may be accommodated directly in the recess 34 without the accommodation case 39 being interposed.

14 seats 16 front operation panel (front operation unit)
26 Main transmission lever (traveling transmission lever)
27 Switch operation panel (operation panel)
28 Insertion hole (lever insertion part)
30 installation hole (installation part for installation)
31 Tilt operation lever (lever operation tool)
33 Support piece (fixed part)
37 engaging claw 38 engaged part

Claims (4)

A front operation unit arranged in front of the seat;
An operation panel that is detachably installed on the upper surface side of the front operation unit and provided with a plurality of operation tools;
A travel speed change lever that is arranged directly behind the operation panel and on the side of the seat or diagonally forward and can be operated to swing back and forth,
A fixing portion for fixing the operation panel with a screw is provided in a portion of the front operation portion located below the traveling shift lever that is swung to the foremost position and tilted forward. Control section. In the front operation part, an installation insertion part for inserting and inserting the outer peripheral edge side of the operation panel is opened,
An engaging claw is formed on one of the outer peripheral side of the operation panel and the peripheral side of the installation insertion portion, and on the other side, the engaged claw is engaged with the engaging claw so that it can be engaged and disengaged. The control part of the work vehicle according to claim 1, wherein a part is formed. A lever operating tool is supported in a swingable manner at a portion where the operation panel is installed in a plan view in the front operation unit,
The control part of the work vehicle according to any one of claims 1 to 3, wherein the operation panel is formed with an opening for a lever insertion part through which the lever operating tool is inserted and protrudes upward. 4. The housing portion that is recessed downward is recessed in a portion of the front operation portion that is positioned below the traveling transmission lever that is swung to the foremost position and tilted forward. 5. The control part of the described working vehicle.

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