JP2019208423A - Work vehicle - Google Patents

Abstract

To provide a work vehicle comprising a foot rest on a floor step side in a steering part, in which the foot rest is switchable between a use posture and a storage posture, and when the foot rest is switched to the storage posture, a space on the floor space can be utilized more efficiently.SOLUTION: A work vehicle comprises a foot rest on a floor step side in a steering part. In the work vehicle, the foot rest comprises: a foot rest body on which a foot mount surface on which a foot of a user is mounted, is formed; and a support mechanism protruded upward from the floor step and supports the foot rest body from a lower side so as to oscillate in a back-and forth direction. The foot rest body is supported so as to be switchable between a use posture on which a foot of a user can be mounted, and a storage posture which is oscillated forward and upward from the use posture and is stored. The support mechanism is arranged on a center side in a right and left direction right under the foot rest body, thereby forming a space on each of left/right both sides of the support mechanism, in plan view.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a work vehicle including a footrest.

  A shifting operation tool that performs a shifting operation by a forward / backward swing operation or the like is provided in the control unit, and a brake operation tool is provided on the floor step side, and a footrest on which a foot of an operator seated on the seat can be placed The work vehicle described in 1 is conventionally known.

  According to the above document, by providing the footrest, the operator's feet during work travel can be held at a suitable height and rested, so that the work travel can be operated more smoothly and comfortably. However, since the footrest is fixed at a predetermined position, there is a case where sufficient space cannot be secured on the floor step side when the operator wants to place his / her feet directly on the floor step side due to the physique of the operator. There was a problem.

Japanese Patent No. 5743816 JP 2017-70220 A

  The present invention provides a work vehicle in which a footrest is provided on a floor step side in a control unit, wherein the footrest is configured to be switchable between a use posture and a retracted posture, and when the footrest is switched to a retracted posture, It is an object to provide a work vehicle that can make more efficient use of this space.

  In order to solve the above-mentioned problems, the present invention provides, firstly, in a work vehicle in which a footrest is provided on a floor step side in a control unit, the footrest includes a footrest body on which a footrest surface on which a foot is placed is formed, and the floor A support mechanism that protrudes upward from the step and supports the footrest body so that the footrest body can swing back and forth, and the footrest body swings forward and upward from the use posture in which the footrest can be placed. The support mechanism is supported so that it can be switched to the stored posture, and the support mechanism is disposed on the center side in the left-right direction directly below the footrest body, thereby forming a space on the left and right sides of the support mechanism in plan view. It is characterized by.

  Second, in a work vehicle provided with a footrest on the floor step side in the control unit, the footrest includes a footrest body formed with a footrest surface on which a foot is placed and a footrest body projecting upward from the floor step. The footrest body can be switched between a use posture in which the footrest can be placed and a retracted posture in which the footrest body is swung forward and upward from the use posture. The support mechanism is a single support member that supports the footrest body.

  Third, a rotation support portion that connects the footrest body to the upper side of the support rod so as to be able to swing back and forth is provided on the back side of the footrest surface in a use posture and in front of the front and rear direction in plan view. The forward and upward swinging operation of the footrest body from the use posture is regulated in a predetermined retracted posture by contacting the back side of the footrest surface with the upper side of the support member. It is characterized by having been comprised.

  4thly, the said supporting member was supported in the state inclined upwards toward the front from the said floor step, It is characterized by the above-mentioned.

  When the support mechanism is disposed on the center side in the left-right direction immediately below the footrest body in the use posture, the footrest body is swung forward and upward from the use posture and switched to the retracted posture. It is possible to secure a sufficient space for the operator to place his / her feet on the floor step on the left and right sides of the support mechanism on the floor step. Thereby, the position where the operator's foot is placed can be changed according to the situation, so that versatility is also improved.

  In addition, according to the support mechanism, which is a single support member that supports the footrest body, the space occupied by the support member can be further reduced, so that the footrest body is particularly switched to the retracted position. In this case, a wider space can be secured on the front side of the floor step.

  In addition, a rotation support part that connects the footrest body to the upper side of the support member so as to be able to swing back and forth is provided on the back side of the footrest surface in use posture and in front of the front and rear direction in plan view, The swinging operation of the footrest body forward and upward from the use posture is regulated in a predetermined retracted posture by bringing the back side of the footrest surface into contact with the upper side of the support member. According to the structure, since it is not necessary to provide a dedicated part for regulating the swinging of the footrest body, the number of parts can be reduced and the cost can be reduced.

  In addition, according to the support member supported in a state where it is inclined upward from the floor step toward the front, the footrest main body switched to the retracted position can be moved further forward. The operator's feet placed on the floor step side during the retracted posture are less likely to interfere.

1 is an overall plan view of a combine to which the present invention is applied. 1 is an overall side view of a combine to which the present invention is applied. It is the principal part sectional side view which showed the control part in a cabin. (A) And (B) is the top view which showed the control part. It is the principal part perspective view which showed the footrest. (A) is the principal part top view which showed the footrest at the time of mounting position, (B) is the principal part top view which showed the footrest at the time of a storage attitude | position. (A) is the principal part side view which showed the footrest at the time of mounting position, (B) is the principal part side view which showed the footrest at the time of a storage attitude | position. (A) And (B) is the principal part perspective view of the footrest of another Example which showed the use condition and the accommodation state. (A) And (B) is the principal part side view of the footrest of another Example which showed the use condition and the accommodation state.

  1 and 2 are an overall plan view and an overall side view of a combine to which the present invention is applied. The combine shown in the figure is a kind of work vehicle. The combine is lifted up and down on a traveling machine body 3 in which a body frame 2 is supported by a pair of left and right crawler type traveling devices 1 and 1 and on the front part of the traveling machine body 3. The pre-processing part 4 connected with possible is provided.

  The traveling machine body 3 is provided with a threshing device 6 on the left half of the traveling direction on the machine body frame 2 (hereinafter simply referred to as the left side), and a cabin 7 that covers the control part on the front half of the right half. A Glen tank 8 is disposed behind the cabin 7 and on the right side of the threshing device 6.

  The threshing device 6 has an annular feed chain 9 that is long in the front-rear direction on the outer side. During the forward travel of the combine, the cereals harvested by the pre-processing unit are transferred to the feed chain 9, and the feed chain 9 has its head pointed toward the inside of the threshing device 6, Is held in a sandwiched manner and conveyed backward.

  The cereal straw conveyed rearward by the feed chain 9 is threshed in the threshing device 6 to become waste, and is further conveyed rearward by the waste conveyor 11. The waste conveyed rearward by the waste transporting body 11 is discharged as it is from the rear end portion of the traveling machine body 3 or is cut and then discharged from the rear end part of the traveling machine body 3 to the outside of the machine. Is done.

  On the other hand, the processed product threshed from the cereal basket is sorted by swinging in the threshing device 6 or by a sorting wind, and sorted into waste such as swarf and grains such as straw. The selected grain is conveyed and stored in the Glen tank 8. The discharged matter is discharged from the rear end of the traveling machine body 3 to the outside of the machine.

  The grains in the grain tank 8 are discharged out of the machine by the auger 12. The auger 12 is supported on the rear end side of the traveling machine body 3 so that the auger 12 can swing up and down and turn left and right, and the grain is discharged from the front end side of the auger 12.

  FIG. 3 is a side cross-sectional view showing a main part in the cabin, and FIGS. 4A and 4B are plan views showing the control part. From the example shown in the figure, the control section in the cabin 7 includes a seat 13 on which an operator is seated, a front operation panel 14 disposed in front of the seat 13, a side of the seat 13 (more specifically, a left side). ) And various dial operation tools are arranged, and a floor step 17 which is a floor formed between the seat 13 and the front operation panel 14 is provided.

  The front operation panel 14 is provided on the side of the wall surface 10 that is the front surface side of the cabin 7 and is provided at a height that can be easily operated manually by an operator seated on the seat 13. A multi-lever 18 is provided that functions as a lift lever for an object and also functions as a steering lever that performs a left-right turning operation of the traveling machine body by a left-right swing operation.

  The side operation panel 16 is provided with an auxiliary transmission lever 19 that switches a traveling shift via a transmission, and a main transmission lever 21 that switches a traveling shift via an HST.

  The floor step 17 places the feet of the operator seated on the seat 13 in the vicinity of the wall surface 10 on the front side of the cabin 7, in other words, at a position where at least a part of the front operation panel wraps in a plan view. A footrest 22 and a brake pedal 23 are provided (see FIGS. 3 to 5). The configuration of the footrest 22 will be described later.

  The brake pedal 23 is a stepping operation tool arranged close to the left and right sides (left side in the illustrated example) of the floor step 17, and an operator seated on the seat 13 steps on one foot (left foot). By operating, it is comprised so that braking operation of a work vehicle can be performed.

  Next, a specific configuration of the footrest will be described with reference to FIGS. 5 is a perspective view of the main part showing the footrest, FIG. 6 (A) is a plan view of the main part showing the footrest in the mounting posture, and FIG. 6 (B) is the footrest in the storage posture. 7 (A) is a side view of the main part showing the footrest in the mounting posture, and FIG. 7 (B) is the main part showing the footrest in the storage posture. It is a side view.

  The footrest 22 includes a footrest body 26 having a footrest surface 26a on which a foot of an operator sitting on the seat 13 is placed, and a support member (support mechanism, support rod) 27 protruding upward from the floor step 17 side. The footrest body 26 is coupled to the upper end side of the support member 27 so as to be pivotable back and forth through a rotation support portion 28 described later.

  More specifically, the footrest body 26 is used in a state in which the footrest surface 26a faces the upper surface side and is slightly inclined downward toward the rear via the rotation support portion 28. By swinging forward from the use posture, the footrest surface 26a can be switched to a retracted posture in a state where the footrest surface 26a faces the front wall surface 10 (see FIGS. 4 and 5). reference).

  The footrest body 26 is a plate-like member extending in the left-right direction, and both left and right sides are bent downward, and is extended on the back side of the footrest body 26 over the entire left-right direction. Further, a prismatic reinforcing member 25 is provided (see FIG. 5 and the like). In addition, a recessed portion 26a in which the footrest body 26 is recessed in the front-rear width direction is formed on the near side in the center in the left-right direction of the footrest body 26 in the use posture.

  With this configuration, the footrest body 26 formed in a plate shape can ensure sufficient strength with a simple and low-cost configuration.

  Further, the footrest body 26 is disposed on the center side in the left-right direction on the floor step 17, in other words, on the front side of the seat 13. For this reason, the operator seated on the seat 13 is configured so that both feet can be placed on the footrest body 26 in a natural posture with the knee bent to some extent.

  The support member 27 is a single frame member that is mounted and supported on the side of the body frame 2 disposed on the lower side of the floor step 17 and is formed in a U-shaped cross section or a prism shape extending upward. (Hereinafter referred to as support rod). The support rod 27 is inserted through an insertion hole 17a drilled on the floor step 17 side and extends upward from the upper surface of the floor step 17 (see FIG. 5).

  With this configuration, the support rod 27 is more firmly attached to the body frame 2 side, so that even when a heavy load such as the weight of an operator is applied to the footrest body 26, the footrest body 26 is more It can be firmly supported.

  The support rod 27 is arranged in front of the seat 13 and is disposed between both feet of an operator who is seated on the seat 13 and placed on the floor step 17 in front. The support rod 27 is provided so as to incline upward toward the front, and the upper end side of the support rod 27 and the front end back surface side of the footrest body 26 in the use posture are in the plan view. It is configured to be connected in the vicinity of the wall surface 10 on the front side in the cabin 7 through the rotation support portion 28.

  Further, the single support rod 27 is configured to be connected to the center side in the left-right direction on the back surface of the footrest body 26 via the rotation support portion 28, so that a flat surface is formed on the floor step 17. A wide space can be formed on the left and right sides of the support rod 27 in view.

  The support member 27 may be configured to support the footrest body 26 by arranging a plurality of the above-described members in addition to a plate-like or rod-like support member instead of the single support rod 27. . Further, the support member 27 may be configured to cantileverly support the left and right sides of the footrest body 26.

  The rotation support portion 28 includes a rotation shaft 31 in the left-right direction that is pivotally supported by the support rod 27 having a U-shaped cross section, and left and right ends of the rotation shaft 31 attached to the back side of the footrest body 26. A pair of supporting bodies 32 and 32 to be supported and a regulating shaft 33 attached so as to be arranged in parallel with the rotating shaft 31 between the supporting bodies 32 and 32 are provided (see FIG. 5 and the like).

  The pivot shaft 31 is pivotally supported on the upper end side of the support rod 27 and is disposed on the front end side of the footrest body 26 in a use posture in plan view. Incidentally, the upper end side of the support rod 27 is formed in a smooth arc shape along the rotation shaft 31.

  Thus, when the footrest body 26 is operated to swing forward (upwardly swing) about the rotation shaft 31 from the use posture, the footrest body 26 slightly tilts toward the wall surface 10 beyond the fulcrum. Thus, the rear front end side of the footrest body 26 and the upper front surface side of the support rod 27 come into contact with each other, and the forward swing of the footrest body 26 is restricted, so that it can be switched to the retracted position. (See FIG. 7B).

  According to this configuration, it is not necessary to separately provide a member for restricting the forward swing of the footrest body 26 and holding it in the retracted posture, so that the cost can be further reduced. Incidentally, the forward swinging of the footrest body 26 may be restricted by bringing the footrest body 26 into contact with the wall surface 10 (not shown).

  The restriction shaft 33 is arranged in parallel with the pivot shaft 31 in the front-rear direction on the back side of the footrest body, and the restriction shaft 31 is in the front-rear width direction of the footrest body 26 with respect to the pivot shaft 31. It is provided on the center side. When the footrest body 26 in the retracted posture swings backward (downwardly swings), the restriction shaft 33 abuts against the upper surface of the middle portion of the support rod 27, thereby causing the footrest body 26 to swing downward. It is configured so that it can be regulated.

  At this time, since the footrest main body 26 is restricted from swinging downward about the rotation shaft 31 at a position where the footrest surface 26a is slightly inclined downward toward the rear, the use posture of the footrest main body 26 is adjusted to its own weight. Is held more stably (see FIG. 7A).

  According to the above-described configuration, the footrest 22 is held in a state where the footrest surface 26a of the footrest body 26 is slightly inclined toward the seat 13 side by switching the footrest body 26 to the use posture. The operator sitting on the seat 13 can place both feet on the footrest surface 26a smoothly and naturally.

  At this time, the footrest surface 26a of the footrest body 26 in the use posture is held at a height position where the height from the floor step 17 is substantially the same as or slightly higher than the brake pedal 23, and the footrest body 26 Since the left and right side sides and the rear side are open, a wide space around the support rod 27 is secured between the footrest body 26 and the floor step 17. As a result, the operator can place his / her feet on the floor step 17 by inserting his / her foot between the footrest body 26 and the floor step 17.

  The footrest 22 can be retracted to a position where the footrest body 26 is raised along the vicinity of the wall surface 10 by switching the footrest body 26 to the retracted posture (FIG. 7B, etc.). reference). Accordingly, the space on the front side of the floor step 17 (directly below the front operation panel 14 in plan view), more specifically, the left and right sides of the support rod 27 on the floor step 17 are widely opened. 22 (footrest body 26) is not disturbed as much as possible.

  Next, based on FIG.8 and FIG.9, a different point from the above-mentioned example is demonstrated about another Example of a floor step. FIGS. 8A and 8B are perspective views of a main part of a footrest of another embodiment showing a use state and a storage state, and FIGS. 9A and 9B show the use state. It is a principal part side view of the footrest of another Example which showed the storing state.

  The footrest 22 includes a footrest body 36 having a footrest surface 26a on which a foot of an operator sitting on the seat 13 is placed, and a support member (support mechanism, support rod) 27 protruding upward from the floor step 17 side. The footrest main body 36 is coupled to the upper end side of the support member 27 so as to be pivotable in the front-rear direction via a rotation support portion 38 to be described later.

  As shown in the drawing, the footrest body 36 is a plate-like member that is long in the left-right direction, and is formed by bending the front and rear sides in the longitudinal direction downward, and on the back side of the footrest body 26 in the left-right direction. A prism-shaped reinforcing member 35 extending over the entirety is provided (see FIGS. 8 and 9). Further, a concave portion into which a part of the support member is fitted is formed on the front side of the support on the left and right center side of the front end of the footrest body 26 in the use posture.

  When the footrest body 36 is swung forward (upward) from the use posture, the recess is fitted to the outer peripheral surface (front side) of the support member 27 at a predetermined swing position (storage posture). It is configured (see FIG. 8B and FIG. 9B).

  With this configuration, the footrest body 36 switched to the retracted position is positioned with the recess 36a inserted into the prismatic support member 27, and the back side of the footrest body 36 is the front side of the support member 27. Since the footrest body 26 is held in contact with the surface, the retracted posture of the footrest body 26 can be held in a more stable state. Further, the footrest 22 can function a part of the footrest body 26 as a member for regulating the upward swinging of the footrest body 26 without providing a separate member, so that the cost can be kept low.

  The rotation support portion 38 has a left and right rotation shaft 31 that is pivotally supported by the support rod 27 having a U-shaped cross section, and both left and right ends of the rotation shaft 31 are attached to the back side of the footrest body 26. The rotating shaft 31 is provided at a position closer to the front side than the reinforcing member 35 on the back surface side of the footrest body 26, as in the above-described embodiment.

  As a result, when the footrest body 36 is swung backward (downward) from the retracted position, the reinforcing member 35 and the support member 27 come into contact with each other at a predetermined swinging position (use position). It is comprised so that the downward swing of 36 may be controlled (refer to Drawing 8 (A) and Drawing 9 (A)).

  With this configuration, the reinforcing member 35 includes a member that reinforces the plate-like footrest body 36 and a member that regulates downward swinging at the swing position in the retracted position when the footrest body 36 swings downward. The cost can be further reduced.

17 floor step 22 footrest 26 footrest body 27 support rod (support member, support mechanism)
28 Rotating support

Claims (4)

In a work vehicle with a footrest on the floor step side in the control section,
The footrest has a footrest body formed with a footrest surface on which a foot is placed, and a support mechanism that protrudes upward from the floor step and supports the footrest body so as to swing back and forth.
The footrest body is supported so as to be switchable between a use posture in which the footrest can be placed and a storage posture in which the footrest body is swung forward and upward from the use posture.
A work vehicle in which a space is formed on both left and right sides of the support mechanism in a plan view by disposing the support mechanism on the center side in the left-right direction directly below the footrest body. In a work vehicle with a footrest on the floor step side in the control section,
The footrest has a footrest body formed with a footrest surface on which a foot is placed, and a support mechanism that protrudes upward from the floor step and supports the footrest body so as to swing back and forth.
The footrest body is supported so as to be switchable between a use posture in which the footrest can be placed and a storage posture in which the footrest body is swung forward and upward from the use posture.
The work mechanism may be a single support member that supports the footrest body. A rotation support part for connecting the footrest body to the upper side of the support member so as to be able to swing back and forth is provided on the back side of the footrest surface in use posture and on the front side in the front-rear direction in plan view,
The swinging operation of the footrest body forward and upward from the use posture is regulated in a predetermined retracted posture by contacting the back side of the footrest surface with the upper side of the support member. The work vehicle according to claim 2 configured. The work vehicle according to claim 2, wherein the support member is supported in a state where the support member is inclined upward from the floor step.

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