阅读说明：本技术 联合收割机 (Combine harvester ) 是由 五岛一实 岩本浩 奥村和哉 仙波笃志 木下正己 河原田崇 于 2019-06-20 设计创作，主要内容包括：本发明提供联合收割机,小型的联合收割机能够防止收割装置的右侧后部与操纵部的前侧罩发生干涉,从而能够将收割装置的上升位置设定得较高。在联合收割机中,在收割装置(3)的后方右侧的部位设置操纵部(5),其中,设置覆盖收割装置(3)的右侧部的罩(16),在操纵部(5)的前部所具有的前侧罩(22)的左侧的部位(22A)形成遍及上下方向的大致全长而使前侧与左侧开放的凹部(23),使收割装置(3)的右侧后部进入凹部(23)。而且,该联合收割机构成为,在使收割装置(3)进行升降的情况下,在维持着该收割装置(3)的右侧后部进入凹部(23)内的状态的同时,使该收割装置(3)沿上下方向移动。(The invention provides a small combine harvester, which can prevent the interference between the right rear part of a harvesting device and the front side cover of an operation part, thereby setting the lifting position of the harvesting device to be high. In a combine harvester, a control part (5) is arranged at the rear right part of a harvesting device (3), wherein, a cover (16) covering the right part of the harvesting device (3) is arranged, a recess (23) which is opened at the front side and the left side is formed at the left part (22A) of a front side cover (22) arranged at the front part of the control part (5) along the approximate whole length in the vertical direction, and the right rear part of the harvesting device (3) enters the recess (23). The combine harvester is configured such that, when the harvesting device (3) is lifted, the harvesting device (3) is moved in the vertical direction while maintaining the state in which the right rear portion of the harvesting device (3) is inserted into the recess (23).)

1. A combine harvester, wherein a harvesting device (3) capable of freely lifting is arranged at the front side of a machine body frame (1) with a running device (2), a control part (5) is arranged at the rear right part of the harvesting device (3),

it is characterized in that the preparation method is characterized in that,

a recess (23) which opens the front side and the left side is formed in a left side part (22A) of a front side cover (22) arranged at the front part of the operation part (5) and extends to the whole length in the vertical direction,

the right rear part of the harvesting device (3) is brought into the recess (23).

2. A combine harvester according to claim 1,

the combine harvester is configured in such a manner that the harvesting device (3) is moved in the vertical direction while maintaining the state that the right rear part of the harvesting device (3) enters the recess (23) when the harvesting device (3) is lifted.

3. A combine harvester according to claim 2,

the combine harvester is configured in such a manner that the amount of the right rear portion of the harvesting device (3) entering the recess (23) is increased by the rising of the harvesting device (3).

4. A combine harvester according to any one of claims 1-3,

a cover (16) covering the right side of the harvesting device (3),

the rear part of the cover (16) is inserted into the recess (23).

5. A combine harvester according to any one of claims 1-3,

the surface of the recess (23) near the front side of the machine body is formed into an arc shape bulging towards the front when the machine body is observed from the side surface.

6. A combine harvester according to any one of claims 1-3,

a front panel (32) is arranged on the upper part of the front side cover (22), a side panel (37) is arranged at the left rear part of the front panel (32),

the upper end of the recess (23) faces the front side of the side plate (37).

Technical Field

The present invention relates to a combine harvester having a liftable harvesting device and an operation unit on which a worker rides.

Background

In the prior art, the following techniques are known: a lower part of the front panel of the operating part near the harvesting device forms a concave part for the rear part of the harvesting device to enter during the lifting operation of the harvesting device so as to prevent interference. (see patent document 1)

Patent document 1: japanese patent application laid-open No. 2010-263853

However, in the technique of patent document 1, when the harvesting apparatus is raised from the lowered working position to the non-working position, the hood attached to the side of the harvesting apparatus closer to the operating portion interferes with the front panel of the operating portion, and therefore the raised position of the harvesting apparatus cannot be set high. In order to solve this problem, when the harvesting device is disposed away from the front panel in the forward direction, there is a problem that the machine body length is large.

Disclosure of Invention

Accordingly, an object of the present invention is to provide a small combine harvester in which interference between a cover attached to a harvesting device and a front panel of an operation portion is prevented, and a non-operation position of the harvesting device can be set high.

The present invention for solving the above problems is as follows.

That is, the invention described in the first aspect is a combine harvester, in which a harvesting device (3) that can be lifted and lowered is provided on the front side of a body frame (1) having a travel device (2), and an operation part (5) is provided on the rear right side of the harvesting device (3), characterized in that a recess (23) that opens the front side and the left side is formed over substantially the entire length in the vertical direction at a left side part (22A) of a front side cover (22) provided on the front part of the operation part (5), and the right rear part of the harvesting device (3) is inserted into the recess (23).

A second aspect of the invention is the combine harvester according to the first aspect, wherein the combine harvester is configured to move the harvesting unit (3) in the vertical direction while maintaining a state in which a right rear portion of the harvesting unit (3) is inserted into the recess (23) when the harvesting unit (3) is raised and lowered.

A third aspect of the invention is the combine harvester according to the second aspect, wherein the amount of entry of the right rear portion of the harvesting unit (3) into the recess (23) is increased by the elevation of the harvesting unit (3).

A fourth aspect of the invention is the combine harvester according to any one of the first to third aspects, wherein a cover (16) is provided to cover a right side portion of the harvesting unit (3), and a rear portion of the cover (16) is inserted into the recess (23).

A fifth aspect of the invention is the combine harvester according to any one of the first to third aspects, wherein a surface of the concave portion (23) on the front side of the machine body is formed in an arc shape bulging forward when the machine body is viewed from the side.

A sixth aspect of the invention is the combine harvester according to any one of the first to third aspects, wherein a front panel (32) is provided at an upper portion of the front side cover (22), a side panel (37) is provided at a left rear portion of the front panel (32), and an upper end portion of the recess (23) is made to face a front side of the side panel (37).

According to the invention described in the first aspect, the harvesting device (3) can be disposed close to the front panel (32), and therefore the body length of the combine harvester can be reduced.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, the harvesting device (3) can be smoothly raised from the working position to the non-working position.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, the non-working position of the harvesting device (3) can be set to a high position.

According to the invention described in the fourth aspect, in addition to the effect of the invention described in any one of the first to third aspects, the rear portion of the cover (16) covering the right side portion of the harvesting device (3) can be made to enter the recess (23) formed in the portion (22A) on the left side of the front side cover (22).

According to the fifth aspect of the present invention, in addition to the effect of any one of the first to third aspects of the present invention, the surface of the recessed portion (23) on the front side of the machine body is formed into an arc shape that bulges forward when viewed from the side of the machine body, so that the harvesting device (3) can be smoothly raised from the working position to the non-working position.

According to the sixth aspect of the present invention, in addition to the effect of any one of the first to third aspects of the present invention, the non-working position of the harvesting device (3) can be set to a higher position.

Drawings

Fig. 1 is a front view of a combine harvester.

Fig. 2 is a top view of the combine.

Fig. 3 is a left side view of the combine.

Fig. 4 is a perspective view of the operation portion as viewed from above and from the left side.

Fig. 5 is a plan view of the manipulation section.

Fig. 6 is a top view of the handling portion and harvesting device in the operative position.

Fig. 7 is a plan view of the handling section and the harvesting apparatus after being raised from the working position to the non-working position.

Fig. 8 is a front view of the parking brake pedal.

Fig. 9 is a right side view of the parking brake pedal.

Fig. 10 is a left side view of the parking brake pedal.

Description of the reference symbols

1: a machine body frame; 2: a running device; 3: a harvesting device; 5: an operation section; 16: a right cover (hood); 16A: a bulging portion; 22: a front side cover; 22A: a left side portion (left side portion); 23: a recess; 32: a front panel; 33: an operating lever; 36: a shift lever; 37: and a side panel.

Detailed Description

As shown in fig. 1 to 3, in the combine harvester, a traveling device 2 composed of a pair of right and left crawler belts that travel on the ground surface is provided below a machine body frame 1, and a harvesting device 3 that harvests a grain pole in a farmland is provided on the front side of the machine body frame 1. A threshing device 4 for threshing the grain stalks harvested by the harvesting device 3 and performing a screening process is provided on the rear left side of the harvesting device 3, and a control unit 5 on which an operator rides is provided on the rear right side of the harvesting device 3.

An engine room 6 having an engine E therein is provided below the operation portion 5, a grain bin 7 for storing grains that are threshed by the threshing device 4 and subjected to the screening process is provided behind the operation portion 5, and the grains stored in the grain bin 7 are discharged to the outside by a discharge auger (not shown) connected to the grain bin 7.

The harvesting device 3 includes: a grain divider 11 for dividing grain stalks planted in a field in the left-right direction; a lifting device 12 for lifting the grain straw after the grain is divided; a cutting device 13 for cutting the root of the raised grain pole; and a conveyor 14 for conveying the grain stalks with the roots cut off to the threshing device 4.

A left hood 15 is provided on the left side of the lifting device 12, and a right hood (a "hood" in the claims) 16 is provided on the right side of the lifting device 12. This prevents the worker from contacting the driving portion of the raising device 12, thereby improving safety.

The harvesting unit 3 can be raised and lowered by driving the hydraulic cylinder 18 to extend and contract, the hydraulic cylinder 18 is connected to a transmission cylinder 17, and a transmission shaft for transmitting the output of the engine E to the raising device 12, the cutter device 13, and the like is installed in the transmission cylinder 17. The elevation position in the range in which the harvesting unit 3 performs the normal harvesting operation is referred to as a "working position", and the position elevated to a position in the range in which the harvesting unit 3 does not perform the normal harvesting operation is referred to as a "non-working position".

As shown in fig. 4 and 5, the operation unit 5 includes: a front cover 22 provided with a lamp 21 for illumination; a front panel 32 provided on the upper portion of the front cover 22 and provided with a monitor 31 for displaying the output rotation speed of the engine E; and a side panel 37 provided on the rear left side of the front cover 22 and provided with a shift lever 36 for shifting the traveling speed of the traveling device 2.

The front surface of the left portion (the "left portion" in the claims) 22A of the front cover 22 is located more rearward than the front surface of the middle portion 22B and the front surface of the right portion 22C of the front cover 22. The upper surface of the left portion 22A of the front cover 22 is disposed at a position lower than the upper surfaces of the middle portion 22B and the right portion 22C of the front cover 22. Thus, a recess 23 is formed in the entire length of the left portion 22A of the front cover 22 in the vertical direction, the recess opening the front and left sides.

As a result, when the harvesting unit 3 is raised from the lowered working position to the non-working position as shown in fig. 6 and 7, the upper rear portion of the right cover 16 provided on the right side of the uprising device 12 is caused to enter the recess 23 more deeply (largely) by the raising, and the uprising device can move smoothly above the left portion 22A without interfering with the left portion 22A of the front cover 22. Further, since the harvesting unit 3 can be disposed close to the front panel 32, a small-sized combine having a short body length can be configured. The left portion 22A of the front cover 22 is a portion located on the left side when the front cover 22 is equally divided by 3 in the left-right direction. The intermediate portion 22B is a portion located at the middle when the front cover 22 is equally divided by 3 in the left-right direction. The right portion 22C is a portion located on the right when the front cover 22 is divided into 3 equal parts in the left-right direction.

The bottom surface of the recess 23, i.e., the front surface of the left portion 22A of the front cover 22, is formed in an arc shape bulging forward in a side view of the body in a range from the front lower end portion of the left portion 22A to the rear upper end portion of the left portion 22A located on the front side of the side panel 37. The width of the front surface of the left portion 22A of the front cover 22 in the left-right direction is formed to become narrower as it approaches the rear upper end portion of the left portion 22A from the front lower end portion of the left portion 22A.

As a result, as shown in fig. 6 and 7, when the harvesting unit 3 is raised from the lowered working position to the non-working position, the lower end of the bulging portion 16A formed by the right cover 16 bulging rightward on the right side of the raising device 12 does not interfere with the left portion 22A of the front cover 22, and can smoothly move upward of the left portion 22A.

The left front portion of the floor panel 38 located below the left portion 22A of the front cover 22 is cut out to have the same shape as the left portion 22A of the front cover 22.

As shown in fig. 4 and 5, an operation lever 33 for performing an operation of raising and lowering the harvesting unit 3 is provided at a right side portion of the monitor 31 provided at a center portion in the left-right direction of the front panel 32, and a key switch 34 for starting the engine E is provided at a rear side portion of the monitor 31. This makes it possible to easily operate the key switch 34 while the monitor 31 is excellent in visibility. Insertion holes for supporting leg portions formed at both side portions of the handle 35 extending in the left-right direction are formed at both side portions of the rear portion of the front panel 32.

Next, the parking brake pedal 40 provided on the left upper side of the floor panel 38 of the operating unit 5 will be described. The parking brake pedal 40 is an operating tool for operating a brake of a transmission T incorporated in the traveling device 2.

As shown in fig. 8 to 10, the parking brake pedal 40 is composed of an arm 41 and a pedal 42, the arm 41 is located on the upper side and extends in the vertical direction, and the pedal 42 is provided on the lower portion of the arm 41 and has a predetermined width in the lateral direction and the front-rear direction.

The upper portion of the arm 41 is fixed to a rotation shaft 43 extending in the left-right direction. The rotary shaft 43 is provided in front of a left vertical frame 60 and a right vertical frame 61 extending in the up-down direction on the front side of the manipulation unit 5 as viewed in the axial direction. This can prevent the operator from being hindered when the operator gets on and off the operation unit 5.

In a state where the parking brake pedal 40 is not depressed, the arm 41 is formed in a reverse へ shape when viewed from the axial center direction of the rotation shaft 43 (i.e., formed to be curved in front of the left vertical frame 60 and to extend smoothly to the rear upper side after extending smoothly to the rear lower side from the rotation shaft 43). This can prevent the parking brake pedal 40 from interfering with the floor 38 and the partition plate 46 of the operating unit 5.

A protective plate 47 is provided at a lower portion of the partition plate 46, and an opening portion through which the arm 41 is inserted is formed in the protective plate 47. This can prevent the toe of the operator from being caught between the partition plate 46 and the parking brake pedal 40. In addition, in a state where the parking brake pedal 40 is depressed, the lower portion of the protection plate 47 is provided at a position lower than the upper portion of the arm 41. This can prevent the toe of the operator from being caught between the protector plate 47 and the parking brake pedal 40. In order to easily depress the pedal 42 of the parking brake pedal 40, the rear surface of the protective plate 47 is preferably provided slightly forward of the rear surface of the partition plate 46.

It is preferable that the left portion of the rotating shaft 43 is fixed to the left vertical frame 60 at a position shifted toward the floor panel 38 side from the center in the vertical direction of the portion between the lower portion of the front panel 32 and the floor panel 38, and the right portion of the rotating shaft 43 is fixed to the right vertical frame 21 at a position shifted toward the floor panel 38 side from the center in the vertical direction of the portion between the lower portion of the front panel 32 and the floor panel 38. Thus, the operator can easily depress the parking brake pedal 40 without changing the operation posture.

The left portion of the rotating shaft 43 is rotatably supported by the left vertical frame 60 via the left stay 44, and the right portion of the rotating shaft 43 is rotatably supported by the right vertical frame 61 via the right stay 45. The left stay 44 is fixed to the left side surface of the left vertical frame 60 by fastening means such as bolts.

A parking brake lever 50 for manually rotating the rotary shaft 43 is provided on the right portion of the rotary shaft 43. A lower portion of the parking brake lever 50 is fixed to a right portion of a rotating shaft 51 extending in the left-right direction. The rotary shaft 51 is rotatably fitted in a support portion 52 extending in the left-right direction, and the left portion of the rotary shaft 51 is connected to the right portion of the rotary shaft 43 via a connecting plate 53. Further, the intermediate portion of support portion 52 is fixed to right vertical frame 61. Thus, the operator can operate the parking brake lever 50 in a farm field to operate the brake incorporated in the transmission T.

The coupling plate 53 is formed of an upper plate, the upper portion of which is fixed to the rotary shaft 43, a lower portion of which is fixed to the rotary shaft 51, and an intermediate plate, which couples the upper plate and the lower plate. The lower portion of the upper plate and the rear portion of the intermediate plate are rotatably fixed together, and the front portion of the intermediate plate and the upper portion of the lower plate are rotatably fixed together. Thus, when the parking brake lever 50 is rotated clockwise about the rotary shaft 51 as viewed in the axial direction of the rotary shaft 51, the rotary shaft 43 is rotated counterclockwise as viewed in the axial direction of the rotary shaft 43, and the brake incorporated in the transmission T can be operated. On the other hand, when the parking brake lever 50 is rotated counterclockwise about the rotary shaft 51 as viewed in the axial direction of the rotary shaft 51, the rotary shaft 43 is rotated clockwise as viewed in the axial direction of the rotary shaft 43, and the brake incorporated in the transmission T can be released from its operation.

The operation lever 33 is connected to a hydraulic valve (not shown) that operates a brake of the transmission T via an operation wire. The operation wire is routed to the front of the partition plate 46, inserted through a through hole formed in the floor panel 38, routed to the lower side of the side panel 37, and then routed to the hydraulic valve.