CN108093831B - Combine harvester - Google Patents

Abstract

Provided is a combine harvester capable of simplifying the manufacturing process and reducing the cost. In the combine harvester, a grain recovery part is arranged at the lateral side of a threshing device, the grain recovery part bags and recovers threshed grains, a grain storage hopper of the grain recovery part is supported on a machine body through a hopper supporting frame (140), the hopper supporting frame (140) is formed by bending 1 rod-shaped component into an approximate L shape, a transverse extension part (140A) and a longitudinal extension part (140B) are integrally formed, the transverse extension part (140A) extends towards the horizontal direction, the longitudinal extension part (140B) extends downwards in a continuous state from one end part of the transverse extension part (140A), the other end part of the transverse extension part (140A) is supported on the lateral wall part of the threshing device, and the lower end part of the longitudinal extension part (140B) is supported on the machine body frame (4).

Description

Combine harvester

The present application is a divisional application of the following applications:

the invention name is as follows: combine harvester

The date of international application: 31/1/2014

International application No.: PCT/JP2014/052296

National application number: 201480011044.2

Technical Field

The invention relates to a combine harvester.

Background

(1) In the case of an existing combine harvester, there is a grain storage hopper that stores grains obtained by a threshing process. The supporting frames respectively used for supporting the front side and the rear side of the grain storage hopper are formed by fixedly connecting 2 square tubular vertical frame bodies which are long in the vertical direction and a square tubular horizontal frame body which is long in the horizontal direction of the machine body. That is, the support frame has 2 vertical frame bodies and a horizontal frame body, in which the 2 vertical frame bodies are fixedly erected on the machine body frame with an interval in the machine body lateral direction, and the horizontal frame body is fixedly connected to the upper portions of the 2 vertical frame bodies (for example, see patent document 1).

(2) For example, patent document 2 describes an example of a conventional all-feed combine harvester. In the case of the all-feed combine harvester described in patent document 2, the raking reel includes left and right reel frames, a support bar provided so as to straddle the left and right reel frames, and tines attached to the support bar. In the case of the above-mentioned all-feed type combine harvester, when the harrowing drum is rotated in harvesting operation, the tines mounted on the support bar hold up the grain stalks planted in the field and harrow them toward the rear side of the harvester body.

(3) As the above-described conventional combine harvester (all-feed combine harvester), for example, a conventional combine harvester described in patent document 3 is known. In the conventional combine harvester described in patent document 3, the feeder has an input shaft (corresponding to a "harvesting input shaft" in the document) oriented in the left-right direction, and power is input to the input shaft. In the conventional combine harvester described in patent document 3, when power is transmitted to the input shaft through the forward rotation clutch, the input shaft rotates forward, and when power is transmitted to the input shaft through the reverse rotation clutch, the input shaft rotates backward. By making the feeder reverse-rotate, the problem of straw blockage in the feeder can be solved.

(Prior art document)

(patent document)

Patent document 1: japanese patent application laid-open publication No. 2008-263885 "

Patent document 2: japanese patent application laid-open publication No. 2011- "

Patent document 3: japanese patent application laid-open No. 2010-239980 "

Disclosure of Invention

(problems to be solved by the invention)

(1) The problems corresponding to the background art (1) are as follows.

In the above-described conventional structure, when a support frame for supporting the grain storage hopper is manufactured, it is necessary to fixedly and integrally connect 2 square tubular vertical frame bodies and square tubular horizontal frame bodies by, for example, welding. That is, the welding process is performed in a state where the end side edge of the square tubular vertical frame body is abutted against the side surface of the square tubular horizontal frame body. The above-described processing is troublesome, and the processing makes the manufacturing processing of the support frame troublesome, resulting in an increase in cost.

The invention aims to provide a combine harvester which can simplify the manufacturing process and reduce the cost.

(2) The problems corresponding to the background art (2) are as follows.

However, in the case of the above-mentioned conventional all-feed type combine harvester, particularly when the supporting portions of the tines supported by the supporting bars catch and pull the planted straw during harvesting work and when the supporting portions catch and wind the harvested straw so that the harvested straw rotates therewith, the transportation of the normally harvested straw may be hindered, and the transportation efficiency may be lowered.

In view of the above, it is desirable to provide a full-feed type combine harvester capable of effectively preventing the supporting portion of the fork tines supported by the supporting bars from catching the grain stalks.

(3) The problems corresponding to the background art (3) are as follows.

The conventional combine harvester (all-feed combine harvester) described in patent document 3 requires a reverse rotation clutch in addition to the forward rotation clutch, and therefore, the cost is increased.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a general type combine harvester capable of reversely rotating a feeder with a simple and low-cost structure.

(means for solving the problems)

(1) The solution corresponding to the problem (1) is as follows.

The combine harvester of the invention is characterized in that a grain recovery part is arranged at the transverse side of the threshing device, the grain recovery part bags and recovers the threshed grains,

the grain storage hopper of the grain recovery part is supported on the machine body through a hopper supporting frame,

the hopper supporting frame is formed by integrally forming a transverse extending part and a longitudinal extending part which are formed by bending 1 rod-shaped component into an approximate L shape, the transverse extending part extends towards the horizontal direction, the longitudinal extending part extends downwards from one end part of the transverse extending part in a continuous state,

the other end of the transverse extending part is supported on the side wall part of the threshing device, and the lower end of the longitudinal extending part is supported on the machine body frame.

According to the present invention, a hopper support frame for supporting a grain storage hopper is formed integrally with a horizontally extending portion and a vertically extending portion, the horizontally extending portion extending in the horizontal direction and the vertically extending portion extending downward, the hopper support frame being formed by bending 1 rod-shaped member into an approximately L-shape.

When the hopper support frame is manufactured, the manufacturing can be completed by a simple bending process of bending 1 rod-shaped member into an approximately L-shape, so that the manufacturing process of the hopper support frame can be simplified and the cost can be reduced.

The other end of the horizontal extension part is supported on the side wall part of the threshing device, and the lower end of the vertical extension part is supported on the machine body frame. That is, the hopper support frame can be firmly supported by effectively utilizing the threshing device and the machine body frame, which are large and strong structural bodies.

Thus, the present invention can provide a combine harvester capable of simplifying the manufacturing process and reducing the cost.

In the present invention, it is preferable that the body frame includes an intermediate extension portion which is connected to a longitudinal middle portion of the lateral extension portion and extends in the vertical direction, and a lower end portion of the intermediate extension portion is supported by the body frame.

According to the above configuration, the present invention includes the intermediate extension portion extending in the vertical direction at a middle portion in the longitudinal direction of the lateral extension portion, and a lower end portion of the intermediate extension portion is supported by the machine frame. By providing the intermediate extension portion as described above, even if the weight of the grain storage hopper is supported at the middle portion in the longitudinal direction of the lateral extension portion, the weight can be supported by the intermediate extension portion, and the weight burden of the lateral extension portion can be reduced.

In the present invention, it is preferable that a reinforcing member is provided at a bent portion of the laterally extending portion and the longitudinally extending portion, the bent portion being connected in a substantially L-shape, the reinforcing member connecting the laterally extending portion and the longitudinally extending portion in a straddling manner.

According to the above configuration, since the reinforcing member is provided at the bent portion of the horizontally extending portion and the vertically extending portion which are connected in the substantially L shape, the amount of downward bending deformation of the horizontally extending portion due to the weight of the grain storage hopper can be suppressed to a small level, and the durability of the hopper support frame can be improved.

In the present invention, it is preferable that the grain storage hopper includes a pair of front and rear hopper support frames for supporting a front side and a rear side of the grain storage hopper.

According to the above configuration, since the front side and the rear side of the grain storage hopper are supported by the hopper support frame, respectively, the grain storage hopper can be stably supported, and the manufacturing process of the hopper support frames on the front and rear sides can be simplified, thereby further reducing the cost.

In the present invention, it is preferable that the hopper support frame positioned on the front side and the rear side has an intermediate extension portion which is connected to a middle portion in the longitudinal direction of the lateral extension portion and extends in the up-down direction, and a lower end portion of the intermediate extension portion is supported by the body frame,

the hopper support frame further includes a bag support member that spans and supports between the intermediate extension portions located on the front side and the rear side, and supports a storage bag that bags grains from the grain storage hopper.

According to the above configuration, since the hopper support frame located on the front side and the rear side respectively has the intermediate extension portion extending in the vertical direction and the lower end portion of the intermediate extension portion is supported by the body frame, the weight of the grain storage hopper can be supported by the intermediate extension portion on the front side and the rear side respectively, and the weight burden of the lateral extension portion can be reduced.

Further, a bag support member for supporting the grain-recovering storage bag is supported across an intermediate extension portion located on the front side and the rear side. As described above, the bag support member can be stably supported on both the front and rear sides by the intermediate extension portions of the hopper support frames on both the front and rear sides.

In the present invention, it is preferable that the bag support member is supported so that the vertical position can be variably adjusted.

According to the structure, the upper and lower positions of the bag supporting member are changed and adjusted, so that the upper and lower heights of the storage bag for grain recovery can be changed in a mode of facilitating recovery operation, and the storage bag is convenient to use.

In the present invention, it is preferable that the grain recovery device further comprises an auxiliary step for placing an operator thereon, the auxiliary step being located laterally outside the body of the grain recovery unit,

and an auxiliary sunshade part supported on the hopper supporting frame and covering the upper part of the auxiliary pedal.

According to the above configuration, the operator can perform work in a large work space secured by the assist pedal, and the work can be easily performed, for example, by performing work of bagging the grains from the grain storage hopper in the storage bag and conveying the storage bag in which the grains are stored.

Further, since the upper side of the assist pedal is covered with the assist sunshade, the operator can be shielded from sunlight by the assist pedal, and the work can be performed easily.

Further, the auxiliary sunshade can be supported by using the hopper support frame without complicating the structure, which means, for example, providing a support member dedicated to sunshade support.

In the present invention, it is preferable that the robot further comprises an intermediate extension portion which is connected to a middle portion in a longitudinal direction of the lateral extension portion and extends in a vertical direction, and a lower end portion of the intermediate extension portion is supported by the body frame,

the auxiliary sunshade portion is supported by a vertical support body which is fixedly erected at a position of the lateral extension portion which is closer to the other end portion than a position to which the intermediate extension portion is connected.

According to the above configuration, the extending portion extends in the vertical direction at a middle portion in the longitudinal direction of the extending portion, and the lower end portion of the extending portion is supported by the body frame. Thus, even if the weight of the grain storage hopper is supported at the middle portion in the longitudinal direction of the horizontally extending portion, the weight can be supported by the horizontally extending portion, and the weight burden of the horizontally extending portion can be reduced.

The auxiliary sunshade is supported by a vertical support body which is fixedly erected at a portion of the lateral extension portion which is located closer to the other end side than a portion to which the intermediate extension portion is connected, that is, at a portion which is fixedly erected closer to the threshing device side. The part fixedly erected by the longitudinal supporting body is positioned between the part connected with the middle extending part and the connecting part of the transverse extending part and the threshing device, the part fixedly erected by the longitudinal supporting body is stably supported by the middle extending part and the threshing device, and the interference between the part fixedly erected by the longitudinal supporting body and the grain storage hopper can be avoided.

Therefore, the auxiliary sunshade can be supported by the vertical support body which is vertically arranged in a stable supporting state, and the interference between the auxiliary sunshade and the grain storage hopper can be avoided.

In the present invention, it is preferable that the grain storage hopper has a pair of front and rear hopper support frames for supporting a front side and a rear side of the grain storage hopper,

the vertical support bodies are fixedly erected on the hopper support frame located on the front side and the rear side, respectively.

According to the above configuration, the auxiliary sunshade is supported by the vertical support bodies that are fixed to the hopper support frames that are erected on the front side and the rear side, respectively. That is, the auxiliary sunshade can be stably supported by the longitudinal support bodies on both the front and rear sides.

In the present invention, it is preferable that the auxiliary sunshade includes: a front and rear connection support rod spanning between upper end portions of the longitudinal support bodies on both front and rear sides;

a plurality of lateral support rods fixedly extended from the front and rear connection support rods in a cantilever shape to the lateral outer side of the machine body and spaced in the front and rear direction; and

and a canopy member that covers the front and rear connecting support rods and the plurality of lateral support rods.

According to the above configuration, the auxiliary sunshade portion includes the front and rear connection support rods that are bridged and supported across the upper end portions of the longitudinal support bodies on both the front and rear sides, and the plurality of lateral support rods that are cantilevered laterally outward of the body from the front and rear connection support rods and are fixedly extended in the front-rear direction with a space therebetween. The auxiliary sunshade further includes a canopy member that covers the front and rear connecting support rods and the plurality of lateral support rods.

Since the auxiliary sunshade is configured by supporting the lightweight canopy member with the very simple support frame structure in which the plurality of lateral support rods are extended to the front and rear connecting support rods as described above, the entire auxiliary sunshade can be made as light as possible and the structure can be made simple.

In the present invention, it is preferable that the auxiliary sunshade includes an intermediate front-rear connecting rod that connects each of the plurality of lateral support rods at a middle portion in the lateral direction of the auxiliary sunshade, and a reinforcing connecting rod that is inclined to connect an end portion of the intermediate front-rear connecting rod and an upper-lower middle position of the longitudinal support body.

According to the above configuration, since each of the plurality of lateral support rods is connected to the intermediate portion of the auxiliary sunshade portion in the lateral direction by the intermediate front-rear connecting rod, the plurality of lateral support rods can be integrated, and the variation in the inclination of the plurality of lateral support rods in the vertical direction can be reduced. Further, since the end portions of the intermediate front and rear connecting rods and the vertically intermediate positions of the vertical support bodies are connected by the reinforcing connecting rods in an inclined posture, the reinforcing connecting rods support the plurality of horizontal support rods and the canopy member in a cantilever shape by the intermediate front and rear connecting rods.

Therefore, the entire auxiliary sunshade can be made as light as possible and the structure can be simplified, and the supporting strength can be ensured to maintain a good sunshade state.

In the present invention, it is preferable that the grain recovery device further comprises an auxiliary step for placing an operator thereon, the auxiliary step being located laterally outside the body of the grain recovery unit,

a reinforcing member is provided at a bent portion of the transverse extending portion and the longitudinal extending portion, which is connected in an approximately L-shape, and the reinforcing member is connected across the transverse extending portion and the longitudinal extending portion,

the combine harvester further comprises a guard member supported by the reinforcement member and adapted to receive and support a back of an operator on the auxiliary step.

According to the above configuration, the operator can perform work in a large work space secured by the assist pedal, and the work can be easily performed, for example, by performing work of bagging the grains from the grain storage hopper in the storage bag and conveying the storage bag in which the grains are stored.

Further, since the reinforcing member is provided at the bent portion of the horizontally extending portion and the vertically extending portion which are connected in the substantially L-shape, the downward bending deformation of the horizontally extending portion due to the weight of the grain storage hopper can be suppressed to a small extent, and the durability of the hopper support frame can be improved.

The present invention further includes a guard member that is supported by the reinforcing member for reinforcing the hopper support frame as described above and receives the back of the operator on the support assist step.

By providing the guard member as described above, even if the assist pedal is shaken by vibration of the machine body or the like, the assisting operator who performs work on the assist pedal can perform work safely by receiving and supporting the back portion by the guard member.

In the present invention, it is preferable that the grain recovery device further comprises an auxiliary step for placing an operator thereon, the auxiliary step being located laterally outside the body of the grain recovery unit,

and an armrest member supported by the lateral extension portion and configured to be held and operated by an operator on the assist pedal.

According to the above configuration, the operator can perform work in a large work space secured by the assist pedal, and the work can be easily performed, for example, by performing work of bagging the grains from the grain storage hopper in the storage bag and conveying the storage bag in which the grains are stored.

The armrest is provided with an armrest component which is supported on the transverse extending part. The armrest member can be held and operated freely by an operator on the assist pedal, and even if the assist pedal is shaken by vibration of the body or the like, the assist operator who works on the assist pedal can hold the armrest member with his hand, thereby performing work safely.

In the present invention, it is preferable that a hopper mounting portion is formed at a longitudinal middle portion of the horizontally extending portion, the grain storage hopper is mounted and fixed to the hopper mounting portion,

the armrest member, which is held and operated by an operator on the assist pedal, is supported by the hopper mounting portion.

According to the above configuration, the hopper mounting portion is formed at the middle portion in the longitudinal direction of the lateral extension portion, and the grain storage hopper is mounted and fixed to the hopper mounting portion. Further, an armrest member is supported by the hopper mounting portion.

That is, since the bucket mounting portion formed in the laterally extending portion for mounting the grain storage bucket is effectively used to support the armrest member, the structure can be simplified by using the member as a dual purpose as compared with a case where the mounting member is provided separately.

In the present invention, it is preferable that a hopper mounting portion is formed at a longitudinal middle portion of the horizontally extending portion, the grain storage hopper is mounted and fixed to the hopper mounting portion,

the grain storage hopper is formed of an integrally molded product of a synthetic resin material, and a flange portion integrally molded with the grain storage hopper is fixed to the hopper mounting portion as a mounted portion.

According to the above configuration, the hopper attachment portion is formed at the longitudinal middle portion of the lateral extension portion. The grain storage hopper is formed of an integrally molded synthetic resin material, and a flange portion integrally molded with the grain storage hopper is fixedly attached to the hopper attachment portion.

Since the flange portion for attachment is integrally molded from a synthetic resin material, the grain storage hopper can be simplified in structure by reducing the number of parts as compared with a structure in which a bracket for connection is separately prepared and attached to the hopper attachment portion.

In the present invention, it is preferable that a vertical frame is erected on the machine body frame, the vertical frame supports the lateral extension portion,

side panels provided on the lateral sides of the driver seat are supported by the vertical frames.

According to the above configuration, the side panel can be stably supported by the vertical frame supported by the horizontal extension portion and the machine frame.

In the present invention, it is preferable that a vertical frame is erected on the machine body frame, the vertical frame supports the lateral extension portion,

an air cleaner for the engine is supported by the vertical frame.

According to the above configuration, the air cleaner can be stably supported by the vertical frame supported by the lateral extension portion and the machine frame.

In the present invention, it is preferable that a vertical frame is erected on the machine body frame, the vertical frame supports the lateral extension portion,

a strainer for an engine is supported by the vertical frame.

According to the above configuration, the strainer can be stably supported by the vertical frame supported by the horizontal extension portion and the machine frame.

In the present invention, it is preferable that a fuel tank is placed on the body frame,

the hopper support frame is formed by bending 1 tube-shaped material into an approximately L-shape,

an air release pipe for releasing air in the fuel tank is connected to the lateral extension portion in a communicating manner.

According to the above configuration, the air in the fuel tank released by the air release pipe can be let out by effectively utilizing the internal space of the hopper support frame.

In the present invention, it is preferable that a round opening for inspection is formed in an upper surface portion of the grain storage hopper,

the grain storage hopper further includes a screw-type cover body that is screwed to a screw portion formed in a peripheral portion of the inspection opening so as to be opened and closed, and that closes the inspection opening.

According to the above configuration, since the inspection opening is formed in a circular shape in the upper surface portion of the grain storage hopper for storing grains, if the inspection opening is opened, the operator can visually confirm the grain storage state inside the grain storage hopper through the inspection opening.

Further, a screw-type cover body for closing the inspection opening is screwed to be openable and closable with a screw portion formed in a peripheral portion of the inspection opening. The operator can switch the inspection opening to the opened state by turning the screw-type cover body to release the screw-connection with the screw portion, and can visually confirm the storage state of the grain through the opened inspection opening.

As described above, the cover body is screwed to the screw portion of the grain storage hopper, and even if vibration or the like occurs with the travel of the machine body, the screw is not easily released in a short time. This can maintain a good closed state for a long time and improve durability.

Therefore, the grain recovery device of the combine harvester can be provided, which can not only observe and confirm the storage state of grains, but also improve the durability.

In the present invention, it is preferable that the cover is formed of a synthetic resin material, and the grain storage hopper is formed of a synthetic resin material.

According to the above configuration, the lid body formed of the synthetic resin material is lighter in weight than the case of being formed of metal, and the operator can easily perform the opening and closing operation with a light labor load. Further, since the synthetic resin material is softer than metal, it can easily conform to the other screw portion when screwing, and has good sealing properties, and can maintain the screwed state for a long time even when vibration of the machine body occurs. In addition, since the grain storage hopper is formed of a synthetic resin material, the grain storage hopper is lightweight as compared with the case of being formed of metal. This simplifies a supporting structure for supporting a grain storage hopper, which is a large component for storing grains, and facilitates the work of mounting the grain storage hopper.

In the present invention, it is preferable that the inspection opening is formed at a position substantially in the middle of the width of the grain storage hopper in the front-rear direction of the machine body.

According to the above configuration, since the inspection opening is formed at the substantially middle position of the width of the grain storage hopper in the front-rear direction of the machine body, when the inside of the grain storage hopper is viewed from the upper side through the inspection opening, the inside of the grain storage hopper can be viewed from a wide range in both the front and rear sides, and the grain storage state can be easily confirmed.

In the present invention, it is preferable that the grain storage hopper has a grain discharge portion for discharging grains stored in the grain storage hopper downward,

the grain discharge part is provided with a pair of grain discharge ports which are arranged in front and back,

the opening for inspection is formed at a position corresponding to a front-rear intermediate position of a pair of front and rear grain discharge ports in a plan view.

According to the above configuration, the grains stored in the grain storage hopper can be discharged downward by the grain discharge unit. Further, since the inspection opening is formed at a position corresponding to the front-rear intermediate position of the pair of front and rear grain discharge ports, it is easy to visually confirm whether or not the pair of grain discharge ports are not clogged and properly discharge grains after discharging grains, for example. Further, even in the process of storing grains accompanying the harvesting operation, the storage and accumulation state of the upper side of each of the pair of grain outlets can be confirmed, and whether the grains are uniformly stored as a whole can be easily confirmed.

In the present invention, it is preferable that the grain storage hopper has a grain discharge portion for discharging grains stored in the grain storage hopper downward,

the grain discharge part is provided with a pair of grain discharge ports arranged in front and back and a pair of inclined funnel parts with tapered front ends, the pair of funnel parts respectively correspond to the pair of grain discharge ports and guide stored grains to flow downwards to the grain discharge ports,

the inspection opening is formed to cross the front and rear pair of funnel portions in a plan view.

According to the above configuration, the grains stored in the grain storage hopper can be discharged downward by the grain discharge unit. Further, the grain can be smoothly guided to flow down and discharged from the grain discharge port by the inclined funnel part whose tip is tapered corresponding to each of the pair of grain discharge ports.

Further, since the inspection opening is formed to have a large diameter, that is, to have a size that spans the pair of front and rear funnel parts when viewed in plan, when the inside of the grain storage hopper is viewed from above through the inspection opening, the storage and stacking state of the pair of grain discharge ports on the upper side can be confirmed not only when viewed from directly above but also when viewed from obliquely above, and the confirmation work can be performed in a relaxed posture without having to reach the body above the grain storage hopper.

(2) The solution corresponding to the problem (2) is as follows.

The combine harvester of the invention carries out harvesting operation by raking the planting vertical grain stalks through the raking winding drum, and is characterized in that,

the raking reel comprises:

a left and right reel frame;

a support bar provided so as to straddle the left and right spool frames;

a tine mounted to the support bar; and

a cover covering the supporting portions of the tines supported by the support bar,

the tines pass through the housing.

According to the present invention, since the supporting portions of the tines supported by the supporting bar are covered with the cover, the cover can prevent the grain and straw from contacting the supporting portions of the tines. Also, because the prongs pass through the cover, the cover is well positioned to some extent. As described above, in the present invention, the cover can cover the supporting portions of the tines in a stable state. Therefore, by the present invention, the grain and straw can be effectively prevented from being caught or entangled in the supporting portions of the fork tines.

In the present invention, preferably, the cover body is formed with a through hole or a slit,

the fork teeth penetrate through the through hole or the notch.

According to the above configuration, the position of the cover with respect to the fork can be easily positioned by a simple configuration in which the cover is formed with the through hole or the slit.

In the present invention, it is preferable that a plurality of the through holes or the slits are formed,

the fork teeth respectively penetrate through the through holes or the notches.

According to the above configuration, a plurality of through holes or slits are formed in 1 cover, and the fork tines pass through the through holes or slits. That is, the cover can be supported in a stable state by the plurality of tines.

In the present invention, it is preferable that a rear side of the support portion is covered with the cover.

In the harvesting operation, the planted grain and straw is particularly forced to the rear side of the fork teeth, so that the grain and straw is particularly easy to hang on the rear side of the fork teeth. According to the above configuration, since the rear side of the supporting portion of the fork is covered with the cover, the straw can be reliably prevented from being caught on the supporting portion of the fork.

In the present invention, it is preferable that the fork tine has a spring portion in a string shape at a halfway portion extending from the tip portion of the fork tine to the support portion,

the spring portion is covered by the cover.

According to the above configuration, when the string-shaped spring portion is provided at a middle portion extending from the tip portion of the tine to the support portion, the shock to the tine is absorbed by the string-shaped spring portion, and therefore, the tine can be prevented from being damaged. However, the grain stalk may be easily caught by the spring portion in a string shape. According to the above configuration, since the spring portion is covered with the cover body, the straw can be prevented from being caught by the spring portion in advance.

In the present invention, it is preferable that the fork is inserted through the cover at a position lower than the spring portion.

Generally, since the fork tines rake the planted grain stalks backward while moving downward and backward, the grain stalks contact not only the fork tines from the back but also the fork tines from below. That is, the grain straw also contacts the spring portion from the rear and from below. With the above configuration, since the cover covers the spring portion from below, the straw can be further prevented from being caught by the spring portion.

In the present invention, it is preferable that the plurality of tines be arranged and attached to the supporting rod with an interval in the longitudinal direction of the supporting rod,

the bearing portions of more than 2 tines are covered by the cover.

According to the above configuration, the number of covers for supporting the rod can be reduced compared to the case where 1 cover covers the supporting portion of 1 tine, thereby reducing the manufacturing cost.

In the present invention, it is preferable that the plurality of tines be arranged and attached to the supporting rod with an interval in the longitudinal direction of the supporting rod,

the bearing portions of all of the tines are covered by a single said cover.

According to the structure, the number of the cover bodies corresponding to 1 supporting rod is 1. Thus, compared to the case where a plurality of covers are used for 1 support rod, the number of covers for raking the reel can be reduced, and the manufacturing cost can be reduced.

In the present invention, it is preferable that the cover is attached to the supporting rod at a position different from the tines in the longitudinal direction of the supporting rod.

According to the above configuration, the cover is supported not only by the tines but also by the support bars, so that the cover can be firmly supported. Further, according to the above configuration, the cover is attached to the support rod at a position different from the tines in the longitudinal direction of the support rod. Therefore, the tines are less likely to become an obstacle when the cover is attached to the support bar.

In the present invention, it is preferable that the support bar includes a first bar on which the plurality of tines are mounted in a first array at unequal intervals, and a second bar on which the plurality of tines are mounted in a second array opposite to the first array.

According to the above configuration, since the first arrangement of the tines in the first bar is opposite to the second arrangement of the tines in the second bar, the second bar can be attached to the housing by using covers that cover the supporting portions of the tines attached to the first bar in the opposite left-right directions. That is, the first rod and the second rod can share the same cover member. Therefore, when the above configuration is adopted, the number of types of the cover bodies can be reduced and the cost can be reduced as compared with a case where a dedicated cover body is attached to each of all the support rods.

(3) The solution corresponding to the problem (3) is as follows.

The present invention is characterized by comprising: a driving part for an operator to ride; a harvesting part for harvesting the vertical grain stalks; and a feeder that conveys the harvested straws to the threshing device, wherein the feeder has a left-right input shaft to which power is input, the input shaft is provided with an operation unit, the operation unit can be provided with a tool for manual operation and can also manually perform reverse rotation operation on the input shaft through the tool, and the operation unit is provided at an end of the input shaft located on the driver side and is exposed from the feeder to the outside.

According to the above configuration, instead of the configuration of the reverse rotation clutch, the operation portion in which the manually operated tool can be disposed is provided at the end portion of the input shaft, and the reverse rotation operation is artificially performed on the input shaft by the tool, whereby the feeder can be reversely rotated with a simple and low-cost configuration. Further, by providing the operation portion at the end of the input shaft on the driver side, when a tool is disposed on the operation portion, the tool can be disposed on the operation portion without being particularly detached from the driver portion. In this case, the position of the operation portion can be easily confirmed by setting the operation portion in a state of being exposed to the outside from the feeder. That is, a tool for operating the input shaft in a reverse rotation direction can be easily disposed in the operation portion provided in the input shaft of the feeder.

In the present invention, it is preferable that the operation unit is detachably provided on the input shaft.

According to the above configuration, when the operation portion is worn or damaged, the operation portion can be replaced.

In the present invention, it is preferable that at least two step portions are formed at an end portion of the input shaft located on the driver side, wherein the step portion located on the center side in the axial direction of the input shaft among the two step portions is provided to be slidable in the axial direction of the input shaft as a diameter of the step portion located on the end portion side in the axial direction of the input shaft becomes smaller, and a fastening member that fastens the operation portion in the axial direction of the input shaft is provided at the step portion located on the end portion side in the axial direction of the input shaft among the two step portions.

According to the above configuration, the operation portion is provided slidably in the axial direction of the input shaft, and the operation portion is fastened with the fastener, whereby the operation portion can be prevented from coming off, and the operation portion can be removed from the input shaft by loosening the fastener. That is, the operation unit can be easily attached to and detached from the input shaft.

In the present invention, it is preferable that three step portions are formed at an end portion of the input shaft located on the driver's side, wherein a diameter of the step portion located on an end portion side in an axial direction of the input shaft is smaller, and a bearing is provided at a step portion located closest to a center portion side in the axial direction of the input shaft among the three step portions, the bearing rotatably supporting the input shaft, and the bearing being positioned in the axial direction of the input shaft by the operation portion.

According to the above configuration, since the bearing is positioned by the operation portion, a dedicated member for positioning the bearing is not required, and the number of components can be reduced.

In the present invention, it is preferable that the feeder includes a feed box that communicates the harvesting unit and the threshing unit, and the feed box includes a storage unit that is capable of storing the tool, on a side portion of the feed box located on the side of the driver unit.

According to the above configuration, since the operation portion and the storage portion are located on the same driver side, the use portion of the tool and the storage portion of the tool are brought close to each other, and therefore, it is convenient both when the tool is taken out from the storage portion and used and when the tool is stored in the storage portion after use.

In the present invention, it is preferable that the housing portion includes a side portion of the feed box located on the driver's side and a leaf spring attached to the side portion of the feed box located on the driver's side and clamping the tool in cooperation with the side portion of the feed box located on the driver's side.

According to the above configuration, the side portion of the feed box is used as a part of the housing portion, and the housing portion can be simply configured by newly providing the plate spring.

In the present invention, it is preferable that a support portion for supporting the tool is provided in addition to the storage portion on a side portion of the feed box located on the driver side.

According to the above configuration, in a state where the tool is stored in the storage portion, the tool is supported by two portions, namely, the storage portion and the support portion, and therefore the storage posture of the tool is stabilized. Thus, the tool does not fall off accidentally even if the feeder is driven in a state where the tool is stored in the storage portion.

In the present invention, it is preferable that the support portion is a pin portion that can be inserted into a hole formed in the tool.

According to the above configuration, the support portion can be simply configured by providing the pin portion that can be inserted into the hole formed in the tool.

In the present invention, it is preferable that a reinforcing groove member extending in a direction perpendicular to a conveying direction of the feeder when viewed from a side is connected to a side portion of the feed box on the side of the cab to open laterally outward, and the leaf spring is provided in an opening of the groove member.

According to the above configuration, the leaf spring can be compactly mounted on the side portion of the feed box on the driver side by disposing the leaf spring in the opening of the groove member.

Drawings

Fig. 1 is an overall side view of a combine harvester according to a first embodiment of the present invention.

Fig. 2 is an overall plan view of the combine harvester.

Fig. 3 is a plan view of the body frame.

Fig. 4 is a perspective view of the body frame.

Fig. 5 is a top view of the high-board frame portion.

Fig. 6 is a front view of the high-board frame portion.

Fig. 7 is a perspective view of the high-plate frame portion.

Fig. 8 is a plan view showing a supply path from a fuel tank.

Fig. 9 is a side view showing a supply path from a fuel tank.

Fig. 10 is a rear view of the fuel tank arrangement portion.

Fig. 11 is a partially cut-away side view of the front portion of the right side of the machine body.

Fig. 12 is a partially cut-away front view of the right front of the machine body.

Fig. 13 is a rear view showing a support structure of the hood.

Fig. 14 is a perspective view showing a frame structure of the front part of the body.

Fig. 15 is a bottom view showing a top plate portion of the sunshade.

Fig. 16 is a side view showing a frame structure of the sunshade.

Fig. 17 is a plan view of the front panel.

Fig. 18 is a front view of the front panel.

Fig. 19 is a side view showing a frame structure of a front portion of the body.

Fig. 20 is a side view of the bagging recovery unit.

Fig. 21 is a front view of the bag collecting unit.

Fig. 22 is a side view of the bagging recovery unit.

Fig. 23 is a partial cross-sectional view of a grain storage hopper.

Fig. 24 is a perspective view of a grain storage hopper.

FIG. 25 is a plan view of a grain storage hopper arrangement section.

Fig. 26 is a perspective view showing a frame structure of the bagging recovery unit.

Fig. 27 is a sectional view showing a support structure of the shield member.

Fig. 28 is a perspective view showing a support structure of the shield member.

Fig. 29 is a perspective view showing a support structure of the shield member.

Fig. 30 is a side view in vertical section showing the opening and closing mechanism.

Fig. 31 is a front view in vertical section showing the opening and closing mechanism.

Fig. 32 is an exploded perspective view showing the opening and closing mechanism.

Fig. 33 is a perspective view of an auxiliary sunshade according to a second embodiment of the present invention.

Fig. 34 is an overall side view of a whole feed type combine harvester according to a third embodiment of the present invention.

Fig. 35 is an overall plan view of the full-feed combine harvester.

Fig. 36 is a front view of the rake reel.

Fig. 37 is a left side view of the rake reel.

FIG. 38 is a left side cross-sectional view showing the mounted state of the tines and cover.

FIG. 39 is a left side cross-sectional view showing the mounted state of the tines and cover in a cross-section different from that of FIG. 38.

FIG. 40 is a front view showing the mounted state of the tines and cover.

Fig. 41 is an explanatory view showing the whole cover body.

Fig. 42 is a left side view showing the vicinity of the side divider.

Fig. 43 is a plan view showing the vicinity of the side divider.

Fig. 44 is an explanatory view showing a cover body of another embodiment of the third embodiment.

Fig. 45 is a side view showing a front part of a combine harvester according to a fourth embodiment of the present invention.

Fig. 46 is a plan sectional view showing a feeder.

Fig. 47 is a side view showing the feeder.

Fig. 48 is a front sectional view showing the housing portion.

Fig. 49 is a plan sectional view showing the rear end portion of the feeder.

Fig. 50 is a side view showing a state where a tool is disposed in the operating nut.

Fig. 51 is a front sectional view showing the front part of the threshing device.

Detailed Description

(first embodiment)

Hereinafter, a case where the first embodiment of the combine harvester according to the present invention is applied to a general-type combine harvester (all-in-one combine harvester) as an example of the combine harvester will be described with reference to the drawings. (Overall Structure)

As shown in fig. 1 and 2, the general type combine harvester of the present embodiment includes a harvesting conveyor 2 that can swing up and down freely at a front portion of a traveling machine body 1, the traveling machine body 1 includes a driving portion 5, a power portion 6, a threshing device 7 that threshes harvested and harvested grain stalks that are harvested and conveyed to the rear by the harvesting conveyor 2, a bagging recovery portion 8 that is a grain recovery portion, and the like at a machine body frame 4 having a pair of right and left crawler travel devices 3, and the bagging recovery portion 8 recovers grains threshed by the threshing device 7 in a bagged state.

The driving unit 5 is located on the right side of the front part of the traveling machine body 1, the grain collecting unit 8 is located behind the driving unit 5, and the threshing device 7 is provided on the left side of the traveling machine body 1. The driving unit 5 has a power unit 6 below the driver seat 9. The driver unit 5 is provided with a sunshade member 10 for preventing sunlight from being irradiated to the driver on board.

In this embodiment, when the left side or the right side in the machine width direction is referred to, the left and right sides are defined in a state of moving in the machine forward direction. Therefore, in the figure in which the body is viewed from the front, the left-right direction is opposite to the defined content direction.

The power of the engine 11 of the power unit 6 is transmitted to the crawler travel device 3 via a travel transmission mechanism, not shown, and the travel machine body 1 is driven to travel freely. The power of the engine 11 is transmitted to the harvesting and conveying device 2 and the threshing device 7 via a working transmission mechanism, not shown.

(reaping and carrying device)

Next, the harvesting and conveying apparatus 2 will be explained.

The harvesting and conveying device 2 includes a harvesting part 12 for harvesting the planted stalks and collecting them at the middle part in the harvesting width direction, a feeder 13 for conveying the harvested stalks to the threshing device 7, and a rotary drum 14 for raking and collecting the front side of the ears of the planted stalks toward the rear side at the upper part of the harvesting part 12.

The harvesting unit 12 includes a pusher-type harvesting knife 15 for harvesting the planted straw, and a horizontal feed screw 16 for collecting the harvested straw toward the inlet side of the feeder 13, i.e., toward the left in the harvesting width direction. Although not shown, the feeder 13 includes an upper rake conveyor, not shown, inside the cylindrical feeding box 13A, and conveys the harvested straws collected by the transverse feeding screw 16 to the rear threshing device 7.

The harvesting conveyance device 2 is supported by a pivot support (not shown) fixed to the body frame 4 so as to be vertically swingable about a horizontal axis P1, and supports a harvesting lift cylinder 17 pivotally connected between the body frame 4 and the harvesting unit 12 by telescopic operation, so that the vertical lift position can be freely changed and adjusted. As a result, the height of the harvesting part 12 at which the grain stalks are harvested can be changed, and the height can be changed between a harvesting posture in which the harvesting part 12 approaches the ground and a non-harvesting posture in which the harvesting part 12 is raised to a predetermined height from the ground.

As shown in fig. 2, a pair of left and right support arms 18 extend forward from an upper portion of the rear end side of the harvesting section 12, and the turning drum 14, which rakes the planted grain stalks backward, is supported so as to be freely driven to turn between the front end portions of the pair of left and right support arms 18.

The drive shaft 19 of the swing drum 14 is rotatably supported by the distal end portions of the pair of support arms 18, and a pair of left and right drum frames 20 that are integrally rotatable and have a rectangular shape when viewed from the side are provided at the left and right end portions of the drive shaft 19. Four support members 21 are provided, the support members 21 are spanned between the pair of left and right reel frames 20, each support member 21 is positioned at each of the four top portions, and a plurality of rake fingers 22 aligned in the longitudinal direction of each support member 21 are attached thereto.

The posture holding mechanism 23 for holding the posture is arranged in a well-known configuration, and the configuration thereof will not be described in detail. The posture holding mechanism 23 holds the posture in which the raking fingers 22 extend downward from the support member 21 regardless of the rotation of the rotary drum 14.

In the revolving drum 14 having such a configuration, when the drive shaft 19 is revolving, the pair of left and right drum frames 20 and the four support members 21 are integrally revolving while maintaining the posture in which the plurality of raking fingers 22 are always downward, and the grain stalks to be harvested can be raked rearward by the plurality of raking fingers 22.

The pair of left and right support arms 18 supporting the swing drum 14 are vertically swingable about a horizontal axis P2 of the base end portion by the extending and contracting operation of the drum raising and lowering cylinder 24, and the vertical position of the swing drum 14 can be changed and adjusted. (Driving part)

Next, the structure of the driver unit 5 will be described.

As shown in fig. 1 and 2, a console 25 stands on the front side of the body of the driver seat 9 in the driver's seat 5, a front panel 26 as an operation panel on the front side is provided on the upper portion of the console 25, and a side panel 27 as an operation panel on the lateral side is provided on the left lateral side of the driver seat 9.

As described above, since the power unit 6 is provided below the driver seat 9, the position of the driver seat 9 is increased, and therefore the floor portion 5A of the driver seat 5 is also provided at a high position. As a result, as shown in fig. 4, 6, and 7, the body frame 4 is configured such that the floor portion 5A is formed higher by a predetermined amount at a portion corresponding to the lower portion of the driver portion 5 than at other portions.

As shown in fig. 3 and 4, the body frame 4 includes a pair of left and right cylindrical main frames 4A extending in the front-rear direction, a lattice frame 4B supported by an upper portion of the main frames 4A, and a high frame 4C forming the floor portion 5A in a state in which a portion corresponding to a lower portion of the driver's seat 5 is higher than other portions by a predetermined amount. The lattice-shaped frame portion 4B is formed by connecting a plurality of front-rear direction frame bodies 28 and a plurality of lateral frame bodies 29 in a lattice shape.

As shown in fig. 6 and 7, the high-board frame portion 4C includes a pair of left and right vertical board members 30R and 30L erected in a vertical posture upward from the lattice-shaped frame portion 4B, and a pair of front and rear lateral support bodies 31 connecting upper end portions of the left and right vertical board members 30R and 30L to each other, at a portion corresponding to a lower portion of the cab portion 5. Of the pair of left and right vertical plate members 30R, 30L, the left vertical plate member 30L is supported by the right main frame portion 4A, and the right vertical plate member 30R stands upright in a state of being supported by the front-rear direction frame body 28a for the cab. Further, a metallic pedal 32 is placed on the upper portion of the vertical plate members 30R and 30L on both the left and right sides, and is fastened and fixed by bolts, thereby constituting the floor portion 5A of the cab portion 5.

A recessed portion 33 that fits inward in the body width direction in a plan view is formed in a right side portion of the body frame 4 on the body front side, and a step portion 34 for taking in and out the cab 5 is provided in a state of fitting in the recessed portion 33.

That is, as shown in fig. 5 and 7, in the right part of the front part of the body frame 4, recessed portions 33 are formed in the rectangular tubular frame body 28c between the right front-rear direction frame body 28b, the right vertical plate member 30R, the cab front-rear direction frame body 28a located below the right vertical plate member 30R, and the right front-rear direction frame body 28b and the right vertical plate member 30R, respectively, and the recessed portions 33 are cut off from the right corner of the front end part of the body in a plan view. The step portion 34 for ascending and descending is provided in a state of being fitted into the recessed portion 33.

As shown in fig. 4 to 7, the step 34 for ascending and descending has a pair of support plates 35 on both the front and rear sides, a lower-side connecting plate 36 connecting the lower ends of the support plates 35 on both the front and rear sides, and an upper-side connecting plate 37 connecting the upper ends of the support plates 35 on both the front and rear sides.

The support plates 35 on both the front and rear sides are formed to have a narrow upper width and a wide lower width when viewed from the front-rear direction of the body, the end edge on the inner side (left side) of the body and the end edge on the lower side are substantially perpendicular to each other, and the end edge on the outer side (right side) of the body is inclined so as to be farther away from the end edge on the inner side (left side) of the body as it goes downward, thereby forming an inclined.

The lower connecting plate 36 is formed by bending both end portions of a band plate-like member in the same direction into a ring shape, and is bridged between the lower end portions of the supporting plates 35 connected to both front and rear sides, and a middle straight path portion 36a along the front and rear directions of the machine body forms a first-stage leg portion. The straight path portion 36a of the lower connecting plate 36 is located outside the machine body with respect to the lower end portion of the support plate 35 and is substantially the same height as the lattice-like frame portion 4B, so that the rider can easily fall when riding on the cab 5 from the ground. An uneven portion 38 for anti-slip is formed on the linear path portion 36a of the lower connecting plate 36.

The upper connecting plate 37 is connected to and stretched between the front and rear support plates 35 in a substantially L-shaped bent state as viewed from the front-rear direction so as to extend along a partial region of the upper end side of the upper end edge of the front and rear support plates 35 and the end edge of the machine body outer side (right side). The upper horizontal surface 37a of the upper connecting plate 37 corresponding to the upper end edge of the support plate 35 is substantially equal to the height of the floor portion 5A of the cab 5, and is arranged outside the right side of the floor portion 5A of the cab 5. The upper horizontal surface 37a forms a second step landing part. With this configuration, the upper horizontal surface 37a is connected to the floor portion 5A of the cab 5, and the substantial floor area of the floor portion 5A of the cab 5 can be increased.

The end edges of the body inner sides (left sides) of the front and rear support plates 35 are integrally connected and fixed to the outer side surface of the right vertical plate member 30R and the outer side surface of the front and rear facing frame 28a for the cab. The front end of the right front-rear direction frame 28b and the front end of the square tubular frame 28c are integrally connected and fixed to the rear side surface of the rear support plate 35. Therefore, the step portion 34 for riding and landing is connected to the inner edge portion of the recessed portion 33 without a gap, and the recessed portion 33 is formed in the right side portion of the body front side of the body frame 4.

Next, a support structure of the console 25 and the side panel 27 will be described.

As shown in fig. 14 and 19, the upper side of the high-board frame portion 4C includes a console frame 39 that supports the console 25, and a side-board frame 40 that supports the side board 27 in a state of being connected to the console frame 39.

The console frame 39 includes a plate-like support 41 and a vertical support 42 provided at the right end of the console 25, the plate-like support 41 is formed to have a large width corresponding to the entire width of the console 25 in the body width direction and extends in the vertical direction, and the plate-like support 41 and the vertical support 42 are integrally connected. The front side of the console 25 is covered with a front cover 43 made of a synthetic resin material. The front cover 43 is fixed to the plate-like support body 41 by fastening screws 44 on both left and right sides. Although not shown, the plate-shaped support body 41 is bent in an L-shape in plan view so as to extend in the front-rear direction at both sides in the machine width direction, so that the support strength is improved, and the lower end portion of the plate-shaped support body 41 is connected to the vertical plate members 30R and 30L on both the left and right sides.

The vertical support 42 is made of a circular pipe material extending in the vertical direction of the console 25, and the lower end portion thereof is connected to the right vertical plate member 30R. The upper side extension is provided above the front panel 26, and the portion extending upward is bent in an L-shape when viewed from the front, thereby integrally forming the armrest 45. As a result, as shown in fig. 18, the armrest 45 includes a vertically extending portion 45a and a hand placing operation portion 45b in a horizontal posture connected to the vertically extending portion 45a, and the vertically extending portion 45a is erected above the front panel 26 in a state of being continuously connected to the vertical support body 42.

As shown in fig. 14, the side panel frame 40 is formed by bending a square tubular material into a substantially L-shape in a plan view, and has a lateral extending portion 40a extending in a lateral posture along the rear surface of the console 25 and a front and rear extending portion 40b extending in a front and rear direction of the body, and the front and rear extending portion 40b extends in the front and rear direction of the body along the lower side of the side panel 27 in a state of being continuous with the lateral extending portion 40 a. The lateral extension portion 40a is connected and supported to the plate-like support body 41 of the console frame 39, and the body front portion side portion of the front and rear extension portion 40b is connected and supported to the upper portion of the transmission case 47 by the vertical connecting body 46. The rear end side of the body of the front-rear extending portion 40b is connected to and supported by a square-tubular vertical frame 48 erected on the body frame 4 at the rear end of the side panel 27.

A connecting bracket 49 made of an angle member is connected to the left side surface of the vertical frame 48, and the connecting bracket 49 extends in a cantilever shape toward the inside (left side) of the machine body. Further, a connecting plate 40c in a vertical posture is integrally connected to a rear end side portion of the body of the front and rear extension portion 40b, and a front vertical surface portion 49a of the connecting bracket 49 and the connecting plate 40c are connected by a bolt in a state of being in contact with each other. Thereby, the side panel frame 40 is coupled to the vertical frame 48, and the rear end portion of the side panel 27 is supported by the vertical frame 48.

As shown in fig. 17, a key switch 50, a warning lamp 51 for notifying various abnormalities, a manipulation lever 52 for performing a turning operation of the body, a drum raising/lowering lever 53 for performing a raising/lowering operation of the turning drum 14, the above-described armrest 45, and the like are disposed on the front panel 26.

The operating lever 52 is operated to operate a turning operating mechanism, not shown, and the body is turned in an operating direction by a swing operation in the left-right direction. The operating lever 52 is also swingably operated in the front-rear direction, and the harvesting lift cylinder 17 is operated by the swing operation in the front-rear direction to lower or raise the harvesting conveyance device 2.

The armrest 45 extends from a right-side end portion of the upper end portion of the console 25 to the left and above a right-left intermediate portion of the front panel 26. The armrest 45 is supported only by the base end side in a cantilever manner, and thus does not become an obstacle when the key switch 50 is operated or the warning lamp 51 is viewed. The hand placing operation portion 45b of the armrest 45 is located near the rear side of the manipulation lever 52, and can be used as a support base for supporting the hand that manipulates the manipulation lever 52.

As shown in fig. 17, the roll raising/lowering lever 53 is provided to extend upward through a guide hole 54 formed in the right end of the front panel 26. As shown in fig. 18, the roll-up/down operation lever 53 is formed in an inclined shape such that the upper hand-grip operation portion 53A projects outward to the right side from the right end portion of the console 25.

The longitudinally extending portion 45a of the armrest 45 is located in the vicinity of the rear side of the panel insertion portion of the drum raising/lowering operation lever 53. As described above, the roll lifting lever 53 is inclined rightward as it goes upward, and the grip operation portion 53A is positioned more rightward outward than the armrest 45 in front view. With this configuration, the roll lifting/lowering operation lever 53 can be operated in a satisfactory manner without being obstructed by the armrest 45.

As shown in fig. 2, a main shift lever 55 for performing a shift operation of a main shift device (not shown) included in the travel drive system, a sub shift lever 56 for performing a shift operation of a sub shift device (not shown) included in the travel drive system, a harvest clutch lever 57 for performing an on/off operation of transmission of the harvest transport device 2, a threshing clutch lever 58 for performing an on/off operation of transmission of the threshing device 7, and the like are arranged on the side panel 27.

As shown in fig. 11 to 13, the driver seat 9 is supported by being placed on the upper surface of the engine hood 59 covering the upper side of the power unit 6. The upper face 60 of the hood 59 is laterally connected to the side panel 27 at substantially the same height as the side panel 27. The upper surface 60, the front surface 61, and the rear surface 62 of the engine cover 59 are closed by a plate-like body, and the right side portion of the engine cover 59 is open to introduce outside air for engine cooling and the left side portion is open to discharge cooled exhaust air.

An intake dust cover 64 is provided on the right side of the engine cover 59, and the intake dust cover 64 includes a dust-proof mesh body 63 for taking in outside air as engine cooling air. The power unit 6 has a radiator 65 for cooling the engine 11 with outside air at a position facing the intake dust cover 64. The intake dust cover 64 is integrally connected to the engine cover 59.

As shown in fig. 2, the outer end of the air intake dust cover 64 is positioned furthest to the right in the entire machine body, and the ascending/descending stepped portion 34 is positioned further inward in the machine body width direction than the right end of the air intake dust cover 64. In fig. 2, the assist pedal 163 described later is shown in an outwardly extended state, but during non-operation, the assist pedal 163 is retracted inside the machine body so as to be located further inward in the machine body width direction than the right end portion of the dust cover 64 for air intake.

The engine hood 59 is supported by the body frame 4 so as to be swingable about an axial center P3 in the front-rear direction of the body together with the intake dust cover 64 and the driver seat 9. That is, as shown in fig. 4 and 11 to 13, at two positions separated in the front-rear direction at the body outer lower end portion of the hood 59, the fulcrum bracket 66 fixed to the body frame 4 and the support arm 18 extended from the lower end portion of the hood 59 are pivotally supported and coupled swingably by the forward-rearward facing fulcrum pin 67 located on the same axial center P3. The hood 59 is swingable about the axis of the body in the front-rear direction by the fulcrum pins 67 on both the front and rear sides, and is thereby switchable between a closed state (a state shown by a solid line in fig. 13) covering the upper side of the engine 11 and an open state (a state shown by a broken line in fig. 13) opening the upper side of the engine 11.

The hood 59 can be held in the closed position and the hood 59 can be maintained in the closed state in the normal operating state by using a lock mechanism 68 having a known structure, the lock mechanism 68 being freely switched between the locked state and the unlocked state by the swinging of the lever. Further, when maintenance work such as inspection is performed on the engine 11 and the components related thereto, the maintenance work is facilitated by releasing the holding state of the lock mechanism 68 and switching to the open state.

A rope 69 is disposed to hold the position of the hood 59 in the open state. That is, as shown in fig. 13, one end of the rope 69 is connected to an upper portion of the rear side of the engine cover 59 on the outside of the engine body, and the other end of the rope 69 is connected to a lower support stand 70 (air cleaner support stand) fixed to the vertical frame 48, which will be described later. The rope 69 is in a slack state when the hood 59 is in the closed state, and when the hood 59 is switched to the open state and extends outward, the rope 69 is in a tensioned state, and further swinging of the hood 59 is prevented, whereby the position of the hood 59 can be held.

As described above, the vertical frame 48 supporting the rear portion of the side panel 27 extends upward from the side panel. An air cleaner 71 for engine air supply and a strainer 72 for sucking outside air and supplying the air to the air cleaner 71 are supported at a portion of the vertical frame 48 extending upward relative to the side plate 27.

The air cleaner 71 and the strainer 72 are arranged in the vertical direction in a state where they are overlapped in a plan view, the air cleaner 71 is positioned on the lower side, and the strainer 72 is positioned on the upper side.

As shown in fig. 14, the vertical frame 48 is formed in a square tube shape and extends in the vertical direction. The vertical frame 48 is supported by the body frame 4 by a horizontally oriented connecting plate 73 integrally connected to the lower end of the vertical frame 48 by a bolt.

Next, an installation structure of the air cleaner 71 will be explained.

As shown in fig. 11 to 14, the vertical frame 48 has a lower support stand 70 extending from the vertical frame 48 at a position slightly higher than the side plate 27, and the lower support stand 70 serves as an air cleaner support stand on which an air cleaner 71 is placed and supported.

The lower support stand 70 has a horizontal placement portion 70A for receiving and supporting the air cleaner 71 and a vertical surface portion 70B for reinforcing the placement portion 70A. The vertical surface portion 70B is formed of a substantially triangular plate-like body, one end side thereof is connected and fixed in a vertical posture along the rear side surface of the vertical frame 48, and the vertical surface portion 70B is provided so as to extend in a state of protruding to the right side of the machine body.

The shape of the placement portion 70A is: both ends of a rectangular plate-like body are bent in an L-shape, and a wide portion 70A1 for placement is provided at the center and bent portions 70A2 for reinforcement are provided at both ends. The mount portion 70A is integrally connected and fixed in a state in which the wide portion 70A1 is located at the upper side and the pair of bent portions 70A2 are located at both sides in the machine width direction so as to face downward, and the machine rear side end edge of the mount portion 70A abuts against the side surface of the machine front side of the longitudinal portion 70B and one bent portion 70A2 abuts against the right side surface of the vertical frame 48.

As shown in fig. 11 to 13, the air cleaner 71 is placed on the placement portion 70A of the lower support stand 70, and is fixed by bolt fastening. The air cleaner 71 is located on the front side of the body with respect to the vertical frame 48, and is located on the right side (outside in the body width direction) with respect to the left side surface (end portion on the inside in the body width direction) of the vertical frame 48.

As shown in fig. 13, the air cleaner 71 is supported by the vertical frame 48 in a state above an outer end movement locus J of the hood 59 when the hood 59 swings between the closed state and the open state. Therefore, the air cleaner 71 can be supported by the vertical frame 48 with a simple structure in a state where it does not become an obstacle during the swing operation of the hood 59.

The other end of the rope 69 for holding the position of the hood 59 is fixedly coupled to the vertical surface portion 70B of the lower support stand 70 by a fixing pin 74.

Next, an installation structure of the strainer 72 will be explained.

As shown in fig. 11, 12, and 14, an upper support base 75 as a strainer support base on which a strainer 72 is placed and supported is provided at a position slightly lower than the upper end portion of the vertical frame 48, and the upper support base 75 is extended in a cantilever manner from the vertical frame 48 toward the front portion of the machine body.

The upper support base 75 is formed of an angle member having an L-shaped cross section and including a horizontal surface portion 75A for placing and supporting and a vertical surface portion 75B for reinforcing. A recess 76 for fitting the strainer 72 is formed in the horizontal surface portion 75A.

The strainer 72 has a large-diameter filter body 72A on the upper side, a small-diameter intake tube 72B that discharges the outside air from which dust is removed downward in a state of protruding downward from the center of the filter body 72A, and a flange portion 72C in a state of surrounding the intake tube 72B on the lower side of the filter body 72A.

The strainer 72 is fixedly attached by bolting the flange portion 72C to the horizontal surface portion 75A in a state where the intake tube portion 72B is fitted into the recessed portion 76 and the flange portion 72C is placed on the horizontal surface portion 75A. As shown in fig. 12, the upper end of the strainer 72 is higher than the upper end of the vertical frame 48.

An introduction cylinder portion 71A having an upper end opened upward and introducing outside air (gas) is formed in the air cleaner 71, and the introduction cylinder portion 71A and the suction cylinder portion 72B of the strainer 72 are connected to each other by a connection hose 77 extending in the vertical direction. The connection hose 77 is made of a soft material such as rubber, and the connection portion is fastened by a clamp 78 to prevent the external air from being mixed.

The air cleaner 71 has an air supply cylinder 71B at a left end thereof for supplying clean air having passed through a filter (not shown) to the engine 11. The air supply path of the air supply cylinder 71B is bent into an L-shape, and the air laterally discharged from the air cleaner 71 is discharged from a portion opened downward to the outside while changing the flow direction of the air downward.

An air supply hose 79, which is an air supply pipe for supplying air from the air cleaner 71 to the engine 11, is connected to the lower side of the air supply cylinder portion 71B. The air supply hose 79 is located on the left side (inside in the machine width direction) of the vertical frame 48 and extends in the vertical direction. The air supply hose 79 is inserted through an insertion hole 80 formed in the side plate 27 and then extended to an air supply portion (not shown) for supplying air to the engine 11 in the power unit 6. The air supply hose 79 is made of a soft material such as rubber, and the connection portion is fastened by a clamp 81 to prevent the external air from being mixed.

Next, the sunshade member 10 covering the upper side of the cab 5 will be described.

The sunshade 10 is supported by the vertical frame 48. That is, as shown in fig. 1, 11, and 14, a square opening is formed at the upper end of the vertical frame 48 formed in a square tube shape, and the sunshade member 10 is supported in a state where the support post 83 thereof is inserted into the upper end opening 82 of the vertical frame 48. The top plate 84 of the sunshade member 10 is disposed at a high position so that the driver is not hindered when the driver's part 5 is in a standing posture.

As shown in fig. 1 and 16, the top plate 84 of the sunshade member 10 is supported by the support 83 in a cantilever manner, and the top plate 84 is rectangular in plan view, has a long length in the front-rear direction of the machine body and a short length in the width direction of the machine body, and is connected to the upper end of the support 83. The top plate 84 is supported in a slightly inclined state, and is inclined so as to be located upward toward the front of the body from the connecting portion with the strut 83.

The support 83 is formed in a substantially square shape substantially identical to the upper end opening 82 of the vertical frame 48, and the support 83 is inserted into the upper end opening 82 of the vertical frame 48. Since the stay 83 is fitted in the square fitting state when inserted into the upper end opening 82 of the vertical frame 48, the position of the sunshade member 10 around the vertical axis is restricted by the square fitting state, and the top plate 84 is prevented from being displaced in the left-right direction, and can satisfactorily cover the upper side of the driver's part 5.

The top plate frame 85, which is connected to the upper ends of the support columns 83 and supports the top plate 84, includes a circumferential support 86 provided in a ring shape along the circumferential edge of the top plate 84, and a lattice support 87 extending in a lattice shape over the entire top plate 84.

As shown in fig. 15, the peripheral portion support body 86 is formed by bending a circular pipe material into a substantially rectangular shape so as to extend along the outer peripheral portion of the top plate portion 84 in a plan view, and both end portions in the longitudinal direction of the peripheral portion support body 86 are integrally connected to the upper end portions of the support columns 83 and supported by the support columns 83 in a cantilever manner.

The lattice-shaped support bodies 87 are configured by arranging the front-rear direction supporting units 87B and the lateral direction supporting units 87A in a lattice shape with an appropriate interval therebetween, and by connecting the front-rear direction supporting units 87B and the lateral direction supporting units 87A at overlapping positions, the front-rear direction supporting units 87B are formed by bending both side portions of the tape material corresponding to the front-rear length of the top plate 84 in the substantially L-shaped direction in the same direction, and the lateral direction supporting units 87A are formed by bending both side portions of the tape material corresponding to the left-right length of the top plate 84 in the substantially L-shaped direction in the same direction. The lattice support 87 is connected to the peripheral support 86 to form a top plate frame 85 for supporting the top plate 84. The cover plate 88 is fixed to the plurality of front-rear facing support units 87B and the plurality of lateral support units 87A by bolts.

And a reinforcing member 89 having an inclined posture, the reinforcing member 89 connecting a portion separated from a connecting portion of the peripheral portion support body 86 to the support post 83 and an upper and lower intermediate portion of the support post 83.

Specifically, as shown in fig. 15 and 16, the reinforcing members 89 are arranged in a pair in the front and rear direction in a state of being connected to the front side end portion and the rear side end portion of the circumferential portion support body 86 made of a circular tube material, respectively. With this structure, the support strength of the portion where the top plate 84 is supported by the support 83 in a cantilever manner is improved.

As shown in fig. 14, locking projections 90 for locking the support post 83 to the upper end edge of the vertical frame 48 and restricting further insertion of the support post 83 are formed on both front and rear side surfaces of the support post 83 at the upper and lower intermediate portions thereof. Thus, the locking projection 90 constitutes a positioning mechanism K1 for regulating the insertion depth of the support post 83 into the upper end opening 82.

In a state where the insertion depth of the stay 83 is restricted by the stopper projection as described above, the stay 83 and the vertical frame 48 are formed with insertion holes 91 that are inserted in the lateral direction at two vertically separated positions, respectively. The support 83 is prevented from being detached by inserting the headed pin 92 into these insertion holes 91. In addition, the separation of the headed pin 92 is prevented by the separation preventing member 93. Therefore, the retaining mechanism K2 for preventing the support post 83 from coming off is configured by the insertion holes 91, the headed pins 92, and the retaining members 93 formed in the support post 83 and the vertical frame 48.

(grain collecting part 8)

Next, the grain collecting unit 8 will be explained.

The grain recovery unit 8 includes a grain storage hopper 94 that stores grains threshed by the threshing device 7, a bagging unit 95 that loads grains discharged from the grain storage hopper 94 into a storage bag, and the like.

Next, the grain storage hopper 94 will be explained.

The grain storage hopper 94 has a hopper body 94A integrally formed by blow molding using a synthetic resin material, and a lid body 94B integrally formed using a synthetic resin material. That is, as shown in fig. 24, a circular inspection opening 96 is formed in the upper surface portion of the hopper main body 94A, and a screw portion 97 is formed in the outer peripheral portion of the inspection opening 96. As shown in fig. 23, a screw portion 98 is also formed in the lid body 94B, and the inspection opening 96 can be closed openably and closably by screwing the screw portion 98 to a screw portion 97 formed in the outer peripheral portion of the inspection opening 96.

As shown in fig. 20, a plurality of vertical ribs 99 are formed at predetermined intervals on the outer peripheral surface of the lid body 94B, so that slip can be prevented by the vertical ribs 99 when the lid body 94B is rotated, and idling can be prevented, and the opening and closing operation can be easily performed.

As shown in fig. 23, a recessed groove 100 into which the end edge of the screw portion 97 of the hopper body 94A is fitted is formed in one circumference of the inner rear end of the cover 94B. Although the recessed groove 100 can accommodate a sealing material such as a gasket, in this embodiment, a pressure-sensitive storage amount sensor S1 (see fig. 20) is used to detect the storage amount of grains inside the grain storage hopper 94, and the high airtightness inside the grain storage hopper 94 is a cause of malfunction of the storage amount sensor S1, and therefore, the sealing material is not installed.

A carrying-in port 101 is formed by opening a side surface on the left side (inner side in the machine body width direction) of the grain storage hopper 94, a carrying terminal end portion of a grain carrying device 102 for carrying grain sent out from the threshing device 7 to the outside is fitted into the inside through the carrying-in port 101, and the grain carrying device 102 supplies grain from a discharge port 103 provided at an upper end portion into the grain storage hopper 94.

As shown in fig. 24, inspection windows 104 are formed in the front side and the lateral outer side (right side) of the grain storage hopper 94, so that the inside of the grain storage space can be visually checked. The inspection window 104 has an insertion hole 105 formed in a wall portion of the grain storage hopper 94, a transparent plate 106 provided inside the insertion hole 105, and the transparent plate 106 is fixed by a bolt from the outside of the grain storage hopper 94.

By providing such an inspection window 104, the operator riding on the driver unit 5 or the assistant operator located on the lateral side of the machine body can confirm the grain storage state in the grain storage hopper 94 by observing through the inspection window 104.

As shown in fig. 20 to 22, the grain storage hopper 94 has a grain discharge portion 107 at a lower portion thereof for discharging grains downward. The grain discharge unit 107 has a pair of grain discharge ports 108 arranged in the front-rear direction, and has an inclined funnel portion 109 whose tip end is tapered in correspondence to each of the pair of grain discharge ports 108, and the funnel portion 109 guides the stored grains to flow down to each of the grain discharge ports 108.

The pair of grain discharge ports 108 are formed at intervals in the front-rear direction of the machine body and are opened in a rectangular shape in a plan view. As shown in fig. 30 and 31, the funnel portion 109 is formed in a funnel shape having inclined surfaces 110 for guiding stored grains to flow down to the grain discharge opening 108 on the front and rear sides and the left and right sides, respectively, with respect to the pair of grain discharge openings 108.

As shown in fig. 24 and 25, the inspection opening 96 formed in the upper surface portion of the grain storage hopper 94 is formed at a substantially middle position of the width of the grain storage hopper 94 in the front-rear direction of the machine body, and is formed so as to straddle the front and rear pair of funnel portions 109 in plan view. Specifically, the front end of the inspection opening 96 is located at a position closer to the rear end of the grain discharge opening 108 in the funnel part 109 corresponding to the grain discharge opening 108 on the front side, and the rear end of the inspection opening 96 is located at a position closer to the front end of the grain discharge opening 108 in the funnel part 109 corresponding to the grain discharge opening 108 on the rear side. Thus, the inspection opening 96 is opened over a wide range so as to extend over positions near the grain discharge ports 108 on both the front and rear sides, and the driver can confirm the grain storage state inside the grain storage hopper 94 by opening the cover 94B.

The grain discharge unit 107 has a pair of front and rear opening/closing mechanisms 111 respectively corresponding to the pair of grain discharge ports 108, and the opening/closing mechanisms 111 are freely switched between an open state for allowing grains to be discharged from the grain discharge ports 108 and a closed state for preventing grains from being discharged. Next, the structure of the opening/closing mechanism 111 will be described with reference to fig. 30 to 32.

As shown in the figure, the front and rear pair of opening and closing mechanisms 111 respectively have a plate-like shutter 112 as a moving operation body, an upper support 113 connected and supported by the grain storage hopper 94 in a state where grains are communicated with the grain discharge port 108 through an opening for passing grains, and a lower support 114 connected and supported by the upper support 113 in a state where grains are communicated with the grain discharge port 108 through an opening for passing grains, the shutter 112 is freely moved and operated in a horizontal direction between an open position where the grain discharge port 108 is opened and a closed position where the grain discharge port 108 is shielded, and the shutter 112 is held and supported by the upper support 113 and the lower support 114.

An insertion hole 115 for passing grain is formed in the shutter 112, and the shutter 112 is provided to be freely movably operated in the horizontal direction between an open position where the insertion hole 115 communicates with the grain discharge port 108 and a closed position where the insertion hole 115 is offset from the grain discharge port 108.

Further, as shown in fig. 32, the cover 112 is formed of a substantially rectangular plate, and has an insertion hole 115 for passing grains therethrough formed at one end side in the longitudinal direction thereof, and an insertion hole 117 for forming a hand-held operation portion 116 formed at the other end side in the longitudinal direction thereof. A shielding part 118 for closing the grain outlet 108 is formed at the center in the longitudinal direction.

A locking portion 119 for a closing position for restricting the position of the shutter 112 at the closing position is formed at a portion closer to the other end side than the shielding portion 118, and a locking portion 120 for an opening position for restricting the position of the shutter 112 at the opening position is formed at one end portion in the longitudinal direction. Further, lateral displacement restricting portions 121 that restrict positional displacement of the shutter 112 in the front-rear direction are formed at both side end portions in the direction in which the length of the shutter 112 is short (front-rear direction).

The upper support portion 113 is connected and supported to the grain storage hopper 94 in a state where it communicates with the grain discharge port 108 through an insertion hole 122 which is an opening for passing grains therethrough, and is positioned above the shutter 112.

That is, the upper support 113 is formed by bending a plate material, and integrally forms an inclined surface 123 along the inclined surface of the funnel portion 109 of the grain storage hopper 94, a vertical surface 124 extending in the vertical direction, and an upper slide guide 125, and the upper slide guide 125 supports the upper surface side of the shutter 112, so that the shutter 112 can slide.

Further, as shown in fig. 32, the inclined surface portion 123 and the vertical surface portion 124 are located on both front and rear sides in a continuous state, and the upper slide guide portion 125 formed with the insertion hole 122 is located at a front-rear middle portion of the vertical surface portion 124 on both front and rear sides in a continuous state with the vertical surface portion 124 on both front and rear sides, and is integrally formed.

The upper support portion 113 is attached to the grain storage hopper 94 by bolts in a state where the grain discharge port 108 of the grain storage hopper 94 communicates with the insertion hole 122 and the inclined surface portions 123 located on both the front and rear sides are in contact with the inclined surfaces 110 on both the front and rear sides of the funnel portion 109 of the grain storage hopper 94.

The lower support 114 is connected to and supported by the upper support 113 in a state where it communicates with the grain outlet 108 through an insertion hole 126, which is an opening for passing grains, and supports the lower side of the shield 112.

That is, as shown in fig. 32, the lower support 114 is constituted by integrally connecting a lower sliding guide portion 127 for slidably supporting the lower surface side of the shield 112, a cylindrical guide portion 128 for guiding the discharged grains downward, and a connecting support portion 129 for connecting to the upper support 113.

An insertion hole 126 is formed in the lower slide guide portion 127, and the insertion hole 126 is located at a position corresponding to the insertion hole 122 of the upper slide guide portion 125. The cylindrical guide portion 128 is formed in a square cylindrical shape, is located below the lower slide guide portion 127, and communicates with the insertion hole 126 correspondingly. The lower slide guide part 127 has a bent piece 130 bent in an L shape integrally formed on the inner peripheral edge of the insertion hole 126, and the lower slide guide part 127 and the cylindrical guide part 128 are integrally connected and fixed by the bent piece 130 being connected to the inner surface of the cylindrical guide part 128.

An extension tube 131 made of a soft material is connected to the lower side of the cylindrical guide portion 128, and the extension tube 131 can guide grains to the storage bag F and can easily deform and escape when the storage bag F moves. The extension tube 131 is fixed to the tubular guide 128 by a band-shaped coupling member 132.

The pair of connecting support portions 129 are provided on both the front and rear sides, and the connecting support portions 129 on both the front and rear sides have the following configurations, respectively.

That is, the cylindrical guide 128 includes a first vertical surface portion 129A provided along the outer peripheral surface of the cylindrical guide 128, a horizontal surface portion 129B extending in the horizontal direction so as to be continuous with the first vertical surface portion 129A and to bypass the louver 112 wider than the cylindrical guide 128, and a second vertical surface portion 129C continuous with the horizontal surface portion 129B and extending in the vertical direction. The first vertical surface portion 129A is fixedly coupled to the outer peripheral surface of the cylindrical guide portion 128, and the second vertical surface portion 129C is fixedly coupled to the vertical surface portion 124 of the upper support portion 113 by bolts.

The funnel portion 109 of the grain storage hopper 94 is formed to extend downward from a portion connected to the vertical surface portion 124 of the upper support portion 113, and a space Q is formed in the machine body front-rear direction between the vertical surface portion 124 of the upper support portion 113 and the inclined surface 110 of the grain storage hopper 94. By forming the space Q, when the second vertical surface portion 129C of the connecting support portion 129 and the vertical surface portion 124 of the upper support portion 113 are subjected to the bolt connecting operation or the detaching operation, the operation can be performed using the space Q.

The shutter 112 is supported so as to be movable in the machine body width direction while being sandwiched between the upper slide guide 125 and the lower slide guide 127 in a state where the longitudinal direction thereof extends in the machine body width direction. When the shutter 112 is moved inward (leftward) in the machine width direction and the closing position locking portion 119 abuts against the end edge of the lower slide guide portion 127 to restrict further movement of the shutter 112, the blocking portion 118 is in a closed state blocking the grain discharge port 108. When the shutter 112 moves outward (rightward) in the machine width direction and the open position locking portion 120 abuts against the end edge of the lower slide guide portion 127 to restrict further movement of the shutter 112, the insertion hole 115 is positioned below the grain discharge port 108 and is switched to the open state.

Next, a supporting structure for supporting the grain storage hopper 94 will be described.

As shown in fig. 25 and 26, the grain storage hopper 94 has a pair of front and rear hopper support frames 140 for supporting the front and rear sides thereof. The hopper support frame 140 is configured by bending a single round pipe material as a rod-like member into an approximately L-shape, and integrally forming a horizontally extending portion 140A and a vertically extending portion 140B, the horizontally extending portion 140A extending in the horizontal direction, and the vertically extending portion 140B extending downward in a continuous state from one end portion of the horizontally extending portion 140A. The other end of the laterally extending portion 140A, i.e., the inner end in the width direction of the machine body, is supported by the side wall portion 7A of the threshing device 7, and the lower end of the longitudinally extending portion 140B is supported by the machine body frame 4.

Flange portions 141 integrally formed by resin molding are formed at both front and rear end portions of the grain storage hopper 94, mounting brackets 142 serving as hopper mounting portions are provided at intermediate portions in the machine width direction of the laterally extending portions 140A of the front and rear pair of hopper support frames 140, and the flange portions 141 formed at both front and rear sides of the grain storage hopper 94 are fastened and fixed by bolts to the mounting brackets 142 provided at the front and rear pair of hopper support frames 140, respectively.

The front and rear pair of hopper support frames 140 include an intermediate strut 143 as an intermediate extension portion in the hopper support frame 140 located on the rear side of the machine body, and the intermediate strut 143 is connected to a longitudinally intermediate portion of the lateral extension portion, extends in the vertical direction, and has a lower end supported by the machine body frame 4. The intermediate support 143 is formed of a circular pipe similar to the hopper support frame 140, and extends in a state of being integrally connected downward from the lateral extending portion 140A.

The hopper support frame 140 located at the front side of the machine body is supported by the intermediate portion in the longitudinal direction of the laterally extending portion 140A being connected and fixed to the vertical frame 48. That is, as shown in fig. 21 and 22, a bracket 144 having an L-shaped cross section is fixedly coupled to the rear side surface of the vertical frame 48, and the flange portion 145 fixedly extended in a state of protruding forward from the lateral extension portion 140A is fixedly supported by the bracket 144 by bolt coupling.

Therefore, the vertical frame 48 functions as an intermediate extension portion that is connected to a longitudinal middle portion of the lateral extension portion 140A, extends in the vertical direction, and has a lower end portion supported by the body frame 4, with respect to the hopper support frame 140 located on the front side of the body.

The hopper support frame 140 located on the front side of the machine body has a reinforcing member 146 at a bent portion where the lateral extending portion 140A and the vertical extending portion 140B are connected in a substantially L-shape.

As shown in fig. 28 and 29, the reinforcing member 146 includes a front plate body 147 and a rear plate body 148, the front plate body 147 connects the front end portions of the horizontally extending portion 140A and the vertically extending portion 140B of the hopper support frame 140 located on the front side of the machine body in the oblique direction, and the rear plate body 148 connects the rear end portions of the horizontally extending portion 140A and the vertically extending portion 140B in the oblique direction. The rear plate-like body 148 of the pair of plate- like bodies 147, 148 is formed to extend toward the front plate-like body 147 through the lower side of the hopper support frame 140, and these plate- like bodies 147, 148 are connected to each other so as to have a substantially U-shaped cross section.

A guard member 149 is supported by the reinforcing member 146, the guard member 149 being freely changeable in posture between an acting posture (a state shown by a broken line in fig. 21) protruding outward in the lateral direction of the machine body and a storage posture (a state shown by a solid line in fig. 21) retreating inward in the machine body, and the guard member 149 supports the back of a worker assisting the bagging work.

That is, as shown in fig. 27, the guard member 149 is rotatably supported around the body front-rear axial center P5 by a support shaft 151 rotatably supported by a pivot support sleeve portion 150 penetrating and supported between the plate- like bodies 147, 148 on both front and rear sides of the reinforcing member 146, and the guard member 149 is freely changed between the working posture and the storage posture.

The guard member 149 is formed by bending a rod-like member into a substantially L-shape, and has a base end side portion supported by the hopper support frame 140 so as to be rotatable by a support shaft 151, and a support action portion 149A extending in the front-rear direction of the machine body on a free end side. A protective member 152 made of a soft material is attached to the support action portion 149A.

As shown in fig. 26 to 29, the hopper support frame 140 includes a receiving support portion 153 for receiving and supporting the guard member 149 in the operating posture, and the receiving support portion 153 is coupled and fixed to the reinforcing member 146 and the hopper support frame 140. The receiving support 153 has a receiving body 153a and a lower support body 153b, and the receiving body 153a is located below the guard member 149 in the operating posture and is formed in an approximately L-shape when viewed in the front-rear direction of the body; the lower support 153b is a plate body bent into a substantially L-shape in plan view, and supports the receiving body 153a from below. A buffer 153c made of an elastic material is provided on the upper surface of the receiving body 153 a.

Further, a receiving portion 154 is formed, and the receiving portion 154 is formed by extending the rear plate-like body 148 of the reinforcing member 146 to the front side of the connecting portion with the front plate-like body 147, and receives the shield member 149 when the storage posture is switched.

As shown in fig. 27 and 28, the reinforcing member 146 has a lock pin 156 that is fitted into and engaged with an insertion hole 155 formed in the shield member 149 at a position corresponding to the storage posture of the shield member 149, and the lock pin 156 is urged by a spring 157 and is movable in the fitting direction. Therefore, when the shield member 149 moves to the storage posture, the lock pin 156 is guided on the outer peripheral surface and automatically fitted into the insertion hole 155 to be engaged therewith, whereby the shield member 149 can be held in position in the storage posture. In the release position holding, the lock pin 156 is moved outward against the biasing force of the spring 157 to release the lock.

The pair of front and rear mounting brackets 142 connected to the flange portion 141 of the grain storage hopper 94 have a hopper mounting portion 142a oriented longitudinally and in the front-rear direction, and the flange portion 141 of the grain storage hopper 94 is fastened and fixed to the hopper mounting portion 142a by bolts. Further, bent portions 142b in a horizontal posture are integrally formed in the front and rear pair of mounting brackets 142, and the bent portions 142b extend in the extending direction (body width direction) of the lateral extending portion 140A from the lower end portion of the hopper mounting portion 142 a. Further, a handle mounting portion 142c having a vertical posture is integrally formed with the pair of front and rear mounting brackets 142, and the handle mounting portion 142c extends from the lateral end of the hopper mounting portion 142a in the extending direction of the lateral extending portion 140A.

An armrest member 158 is bridged between the armrest mounting portions 142c of the front and rear pair of mounting brackets 142, and the armrest member 158 is arched in a plan view so as to assist an operator in gripping the armrest member freely. That is, the armrest member 158 is formed by bending a circular pipe material, and both end portions thereof are pressed flat, and the flat portions are fastened and fixed to the armrest mounting portions 142c of the front and rear mounting brackets 142 by bolts, respectively, and are bridged in an arch shape in plan view. Thereby, the armrest member 158 is supported by the lateral extending portion 140A.

Next, the bagging section 95 will be described.

As shown in fig. 22, 25, and 26, the bagging section 95 includes a bag support member 160 that supports a storage bag F for bagging grain from the grain storage hopper 94, and the bag support member 160 is supported so as to span the intermediate support column 143 and the vertical frame 48. The bag support member 160 includes a support rod 160a connected to the intermediate support 143 and the vertical frame 48, and 4 bag support rods 160b fixedly extended in a cantilever manner outward (right side) in the machine width direction at appropriate intervals from the middle portion in the longitudinal direction of the support rod 160 a.

A vertical plate-shaped mounting bracket 161 is fixedly extended at a position slightly higher than the upper and lower center portions of the intermediate strut 143, and mounting plates 160a1 mounted to the front and rear end portions of the support rod 160a are connected at upper and lower two positions to the mounting bracket 161 and the vertical surface portion 70B fixed to the lower support base 70 of the vertical frame 48 by bolts, respectively, so that the support rod 160a is supported so as to span the intermediate strut 143 and the vertical frame 48.

Three bolt insertion holes 162 are formed at equal intervals in the vertical direction in the attachment bracket 161 and the vertical surface portion 70B, and the attachment plate 160a1 can be switched between two states, i.e., an attachment state by two upper bolt insertion holes 162 and an attachment state by two lower bolt insertion holes 162, so that the vertical height of the bag support rod 160B can be freely adjusted in two stages, i.e., vertically.

In the bagging section 95, one storage bag F is supported by two bag support rods 160b in a vertical posture, the cylindrical guide 128 and the extension tube 131 are positioned in the opening of the storage bag F, and the shroud 112 is switched to an open state, whereby grains stored in the grain storage hopper 94 can be stored in the storage bag F. When a predetermined amount of grains are contained in the containing bag F, the shutter 112 is switched to the closed state, and the containing bag F containing grains is removed from the bag support rod 160b and conveyed to the outside of the machine body.

Such a bagging work needs to be performed by an assistant operator, not by a driver on board the driver unit 5. Therefore, in order to secure a work space necessary for assisting the worker in the bagging work, an assist pedal 163 for supporting the worker is provided.

As shown in fig. 3 and 4, the assist pedal 163 is supported swingably about a front-rear axis P4 by a fulcrum bracket 164 fixed to the right side of the body frame 4 and facing the frame body 28b in the front-rear direction, and is switchable between an operating posture in which it projects laterally outward in a horizontal posture and a storage posture in which it is retracted inside the body in a vertical posture. In the field harvesting work, the bagging work can be performed by switching the assist pedal 163 to the active posture, and when the vehicle travels while moving in the non-working state, the width of the machine body can be made compact by switching the assist pedal 163 to the storage posture, thereby avoiding contact with foreign objects. Further, if the accessory pedal 163 is switched to the storage posture, the accessory pedal 163 is located further inward in the machine body width direction than the right end portion of the dust cover 64 for air intake.

As described above, the left side of the hood 59 is opened to discharge the cooled exhaust air while assisting the worker to perform the work by the bag unit 95. As shown in fig. 2, the space outside the cooling air outlet side opening of the engine cover 59 is connected to the bagging work space below the grain storage hopper 94. Here, a partition plate 165 supported by the vertical frame 48 is provided, and the partition plate 165 partitions an outer space of the cooling air discharge side opening and a bagging work space.

(Fuel tank)

Next, the fuel tank 170 will be explained.

As shown in fig. 2, the grain collection unit 8 has a fuel tank 170 for storing fuel to be supplied to the engine 11 at a rear portion of the machine body and at a right side portion (an example of one end portion in the machine body width direction) of the machine body. That is, the fuel tank 170 is located on the lateral side of the rear end of the body of the threshing device 7.

The fuel tank 170 is made of metal, is formed in a rectangular box shape, and has a high rigidity at an upper surface 170a thereof to a degree that a person can be carried thereon. The fuel tank 170 is supported by being placed on a tank support portion 171 extending rearward from the rear end of the body frame 4.

As shown in fig. 3 and 4, the tank supporting portion 171 includes a pair of right and left tank mounting frame bodies 172 and a tank protecting frame body 173 surrounding the periphery of the fuel tank 170. The pair of left and right box-mounting frames 172 are fixedly extended rearward from the rear lateral frame 29a located at the rearmost part of the machine frame 4. The tank mounting frame 172 is formed of a member having a substantially U-shaped cross section, and is disposed in a downwardly open posture, and supports the fuel tank 170 on the upper flat surface portion. The fuel tank 170 placed thereon is held by a pair of left and right band-shaped holding members 174. The pair of holding members 174 are respectively wound around the fuel tank 170 so as to press the fuel tank 170 from above, and front and rear side portions of the pair of holding members 174 are connected and fixed to the tank mounting frame body 172.

Further, the round pipe material is formed into a loop shape along the outer periphery of the fuel tank 170, thereby forming a tank protecting frame 173, and both end portions of the tank protecting frame 173 are connected to the rear lateral frame 29a and are in a state of surrounding the periphery of the fuel tank 170 in a plan view.

The coupling body 175 couples the rear end portions of the pair of left and right tank placement frames 172 to each other, and the coupling body 175 is coupled to the tank protection frame 173, so that the rigidity of the entire tank support portion 171 is enhanced, and the support strength is increased.

As shown in fig. 8 to 10, the fuel in the fuel tank 170 is sucked by a fuel pump 176 from an outlet formed at the bottom of the fuel tank 170, passes through a water separator 178 for separating water and an oil filter 179 for removing foreign matters contained in the fuel via a supply pipe 177, is then supplied to a fuel injection pump 180 provided in the vicinity of the engine 11, and is supplied to a combustion chamber (not shown) of the engine 11 through a nozzle 181. The supplied fuel is consumed by the engine 11 in a large amount, and the fuel remaining unused is returned from the nozzle 181 to the fuel tank 170 via the fuel return pipe 182.

Further, an air release pipe 183 for releasing air in the fuel tank 170 is provided so that the inside of the fuel tank 170 is not depressurized as fuel is sucked by the fuel pump 176. The air release pipe 183 is made of a flexible material such as rubber or soft synthetic resin, and is provided with one end side communicating with the internal space of the fuel tank 170 and the other end side communicating with the external space.

As shown in fig. 8, a fuel fill port 184 for supplying fuel to the fuel tank 170 is formed on the left side (an example of the other end side in the machine body width direction) of the upper surface 170a of the fuel tank 170, and a filling tip opening 186 of a fuel fill pipe 185 connected to the fuel fill port 184 in a communicating state is provided on the rear side of the machine body with respect to the fuel fill port 184 in a plan view. The fuel return pipe 182 and the air release pipe 183 are connected to the left side of the upper surface 170a of the fuel tank 170 and near the front side of the body.

Since the plurality of pipes connected to the fuel tank 170 are formed on the left side of the upper surface 170a of the fuel tank 170, the right side (an example of the other end side in the machine body width direction) of the upper surface 170a of the fuel tank 170 is formed as a flat surface without a projection. A work table 187 for performing various operations is formed by a portion where the flat surface is formed.

That is, when a refueling operation for refueling the fuel tank 170 is performed, a fuel storage container (not shown) for storing refueling can be placed and supported on the work table 187, and the work table 187 is formed on the flat surface of the upper surface 170a of the fuel tank 170. By using the work table 187 as a fuel container mounting table in this way, the refueling operation can be performed easily and efficiently.

When the cover 94B of the grain storage hopper 94 is removed and the upper portion of the thresher 7 is opened to perform maintenance work such as cleaning, the worker can perform the work by climbing up the work table 187 formed on the upper surface 170a of the fuel tank 170. By using the work table as the step table, the maintenance work can be performed efficiently.

The fuel tank 170 is located near the hopper support frame 140 located on the rear side of the machine body in plan view (hereinafter referred to as a rear-side hopper support frame). As shown in fig. 10, the air release pipe 183 extends upward from a connection portion thereof to the fuel tank 170, and an upper end portion of the air release pipe 183 is connected to a connected portion 188 formed in the rear hopper support frame 140 in a state where an inner space is communicated.

The connected portion 188 is formed in a state of being opened downward at a middle portion in the longitudinal direction of the extending portion 140A. As described above, since the rear side hopper support frame 140 is formed by bending the round pipe material into the substantially L shape, the internal space of the lateral extension portion 140A and the internal space of the longitudinal extension portion 140B are continuously communicated, and the air release pipe 183 is connected to the connected portion 188 in a state of being communicated with the internal space of the rear side hopper support frame 140 that is continuously communicated.

An opening for opening the internal space outward is formed at the end of the laterally extending portion 140A on the threshing device 7 side. That is, as shown in fig. 10, a connecting portion 190 connecting the end portion of the lateral extension 140A on the threshing device 7 side to the side wall portion 7A of the threshing device 7 is formed with a communication passage 189 communicating the opening with the outside.

A plate-shaped attachment body 191 is fixedly coupled to the end of the laterally extending portion 140A on the threshing device 7 side, and the attachment body 191 is coupled to an attached member 192 provided on the side wall portion 7A of the threshing device 7 by a bolt. A through hole 193 is formed in the mounting body 191 so as to be continuous with the internal space, and a communication passage 189 which opens laterally outward at a portion continuous with the through hole 193 is formed in the mounted member 192.

In addition, an opening for opening the inner space outward is formed at the lower end portion of the longitudinally extending portion 140B. That is, the body frame 4 connected to the lower end of the longitudinally extending portion 140B is formed with a communication passage 194 for communicating the internal space with the outside.

That is, similarly to the end portion of the horizontally extending portion 140A on the threshing device 7 side, a plate-like attachment body 195 is also fixedly coupled to the lower end portion of the vertically extending portion 140B, and the attachment body 195 is coupled to the machine body frame 4 by a bolt. A through hole 196 is formed in the attachment body 195 so as to be continuous with the internal space, a through hole 197 that is vertically penetrated and opened downward is formed in a portion continuous with the through hole 196 in the body frame 4, and a communication passage 194 communicating with the outside is formed by the through hole 197.

With this configuration, when fuel is supplied by the operation of the fuel pump 176, external air is sucked from the end of the extending portion 140A on the threshing device 7 side and the lower end of the extending portion 140B in the vertical direction and supplied into the fuel tank 170, and thus fuel can be supplied satisfactorily. Since the communication passages 189 and 194 are open in the lateral direction or the downward direction, moisture such as dust and rainwater is less likely to enter.

As shown in fig. 10, the connection target portion 188 is provided in the laterally extending portion 140A at a position close to the intermediate strut 143, and the connection target portion 198 on the fuel tank 170 side to which the air release pipe 183 is connected is formed in a portion close to the intermediate strut 143 in the upper surface of the fuel tank 170. The air release tube 183 extends upward along the intermediate support 143, and a holding member 199 is disposed to hold the air release tube 183 on the intermediate support 143 in an upward extending posture.

With this configuration, since the air release pipe 183 extends substantially linearly in the vertical direction and no bent portion is formed, even if fuel is rapidly supplied by the operation of the fuel pump 176 and the pressure in the fuel tank 170 is reduced, there is no problem that the bent portion of the air release pipe 183 is blocked in the path and external air (gas) cannot be sucked, and the fuel supply can be performed satisfactorily.

As shown in fig. 8, the water separator 178 and the oil filter 179 are located at the lower left side of the fuel tank 170. As shown in fig. 9, a fuel gauge 200 as a remaining amount display means for displaying a fuel storage amount of the fuel tank 170 is provided on a vertical surface portion 170b on the left side (an example of the other end side in the machine body width direction) of the fuel tank 170. The fuel gauge 200 is formed of a transparent pipe communicating with the inside of the tank at both upper and lower sides, and indicates the fuel storage amount by the oil level equal to the height of the oil level in the fuel tank 170.

The water separator 178, the oil filter 179, and the fuel gauge 200 are respectively located between the fuel tank 170 and the side wall portion 7A of the threshing device 7. By providing the water separator 178, the oil filter 179, and the fuel gauge 200 in the narrow space between the fuel tank 170 and the threshing device 7, the possibility of contact with, for example, a heavy storage bag F subjected to bag collection and the possibility of damage due to interference from foreign objects are reduced.

(second embodiment)

A second embodiment of the combine harvester of the present invention will be explained below.

In the present embodiment, the configuration of the bag-packing portion 95 is different from that of the first embodiment, and the other configurations are the same as those of the first embodiment, so that only the configuration different from that of the first embodiment will be described, and the description of the other configurations will be omitted.

In the present embodiment, an auxiliary shade 201 is provided, and the auxiliary shade 201 is supported by the hopper support frame 140 and covers the upper side of the auxiliary step 163. As shown in fig. 33, the auxiliary sunshade 201 is supported by the vertical support body 202, and the vertical support body 202 is fixed and erected from a portion of the lateral extension portion 140A of the hopper support frame 140, which is located closer to the thresher side (closer to the other end side) than the portion connected to the intermediate support column 143. The vertical support members 202 are provided in a pair, and the vertical support members 202 are fixed to the hopper support frame 140 from the front side and the rear side, respectively.

The front and rear vertical supports 202 are formed of a circular tube material, and are inserted into and supported by circular tube-shaped support members 203 fixedly coupled to the front and rear lateral extensions 140A. The structure for preventing the leading pin 204 from coming off by being inserted therethrough is the same as the stay 83 of the sunshade 10, and will not be described in detail. The support member 203 has a pair of reinforcing plates 205 in the shape of an approximately triangular plate.

The auxiliary sunshade 201 includes a front and rear connection support rod 206, a plurality of (specifically, four) lateral support rods 207, and a canopy member 208, the front and rear connection support rod 206 is made of a circular tube material, and is bridged and supported between upper end portions of the longitudinal support bodies 202 on both front and rear sides, the plurality of lateral support rods 207 are fixedly extended from the front and rear connection support rod 206 in a cantilever manner to the lateral outer side of the machine body, and are spaced apart from each other in the front-rear direction, and the canopy member 208 covers the upper portions of the front and rear connection support rods 206 and the plurality of lateral support rods 207.

Further, an intermediate front-rear connecting rod 209 and a reinforcing connecting rod 210 are provided at a middle portion in the lateral direction of the auxiliary sunshade 201, the intermediate front-rear connecting rod 209 is made of a circular tube material, each of the plurality of lateral support rods 207 is connected, and the reinforcing connecting rod 210 is inclined to connect an end portion of the intermediate front-rear connecting rod 209 and an upper-lower middle position of the vertical support body 202.

The reinforcing connecting rods 210 are made of a strip-shaped plate material, and are integrally connected and fixed to the end portions of the intermediate front and rear connecting rods 209 and the upper and lower intermediate positions of the vertical support body 202, respectively. A pair of front and rear reinforcing connecting rods 210 are provided corresponding to front and rear end portions of the intermediate front and rear connecting rod 209 for improving the supporting strength of the auxiliary sunshade 201.

As shown by the broken line in fig. 1, the auxiliary sunshade 201 is located at substantially the same height position as the top plate 84 of the sunshade member 10 provided in the driver's part 5.

(other embodiments of the first and second embodiments)

(1) It is also possible to have the hopper support frame 140 only on either of the front side and the rear side of the grain storage hopper 94. In this case, the other side may be supported by devices provided in the machine body, such as a power unit, a driving unit, and a threshing device.

(2) The reinforcing member 146 may not be provided. At this time, there may be a dedicated supporting member for supporting the shield member 149. Further, the shield member 149 may not be provided.

(3) The armrest member 158 may not be present.

(4) The auxiliary sunshade 201 may not be provided.

(5) The grain storage hopper 94 may be made of a metal material instead of a synthetic resin material.

(6) The invention is not limited to a common combine harvester, but also can be applied to a semi-feeding combine harvester.

(third embodiment)

Hereinafter, a third embodiment of the present invention will be described with reference to the drawings.

(basic structure of whole-feed type combine harvester)

As shown in fig. 34 and 35, the all-feed type combine harvester includes a pair of left and right crawler traveling devices 311, a traveling machine body 312 capable of traveling automatically by the crawler traveling devices 311, a harvesting unit 313 disposed on the front side of the traveling machine body 312, a threshing unit 315 disposed on the rear side of a machine body frame 314 of the traveling machine body 312, a threshing storage unit 316 disposed on the lateral side of the threshing unit 315, and a driving operation unit 317 disposed in front of the threshing storage unit 316.

The harvesting unit 313 is connected to the feeder 318 so as to be vertically swingable around a first horizontal fulcrum X1, and the feeder 318 is connected to the front of the threshing unit 315. The harvesting unit 313 includes a raking reel 320, a pair of right and left harvesting frames 319, a harvesting knife device 321, and a screw 322.

The harvesting knife device 321 has a pusher-type harvesting knife having a harvesting width substantially equal to the width of the traveling machine body 312 so as to straddle the left and right harvesting frames 319. The screw 322 is disposed behind the harvesting knife device 321, and collects harvested stalks harvested by the harvesting knife device 321 toward the left and right center sides of the harvesting width and feeds the collected stalks into the feeder 318. The screw 322 has feeding screw wings 323 and fingers 324, and the fingers 324 feed the harvested straw transversely fed by the screw wings 323 to the starting end of the feeder 318.

The feeder 318 has a conveying belt 328, and the conveying belt 328 rakes and conveys the harvested straws to the rear side and feeds them to the front end of the threshing part 315. The conveying belt 328 has left and right side chains 329 wound in the longitudinal direction and a conveying rod 330, and the conveying rod 330 is vertically provided between the left and right side chains 329 and hung in the transverse direction. The harvested straws are fed to a conveyor belt 328 by a finger 324 of a screw 322, and the harvested straws are conveyed and thrown into a threshing part 315 by the conveyor belt 328.

A hydraulic cylinder 331 is mounted between the front of the body frame 314 and the lower portion of the feeder 318. The harvesting unit 313 swings and ascends around the first fulcrum X1 integrally with the feeder 318 by the expansion and contraction operation of the hydraulic cylinder 331. A raking reel 320 is arranged above the front part of the harvesting part 313, and the raking reel 320 grabs and rakes the grain stalks planted in the farmland to the rear. The whole-feed combine harvester rakes the planted vertical straw into the farmland through the raking drum 320, and simultaneously performs harvesting operation.

The full-feeding combine harvester sets each structure in a mode that the non-harvesting side is positioned at the left side when in reciprocating harvesting.

(Rake roll)

As shown in fig. 34 to 37, the rake reel 320 is rectangular in side view, and is attached to the front portions of the pair of left and right arms 332 via brackets, and the pair of left and right arms 332 are fixed to the body frame 314 and are vertically swingable about the horizontal second fulcrum X2. A hydraulic cylinder 334 is installed between the arm 332 and the harvesting frame 319, and the rake reel 320 swings up and down by the telescopic operation of the hydraulic cylinder 334. A drive mechanism 335 for rotating the raking drum 320 is provided laterally outside the raking drum 320. A drive cover 336 is provided laterally outside the drive mechanism 335 to cover the drive mechanism 335.

The raking reel 320 has left and right reel frames 337, 4 support bars 339 provided astride the left and right reel frames 337, and a plurality of tines 340 attached to the support bars 339. The 4 support rods 339 are hollow tubes and are disposed between the left and right reel frames 337. The 4 support rods 339 are provided at equal intervals in the circumferential direction of the roll frame 337.

(tine)

The tines 340 are made of a linear metal material or a resin material, and as shown in fig. 36, the tines 340 are arranged at positions avoiding the finger portions 324 of the screw 322 so as to be spaced apart in the longitudinal direction of the support bar 339. In the present embodiment, 9 mounting holes 342 are formed for every 1 support rod 339. Thus, a plurality of attachment holes 342 are formed in the support bar 339. As shown in fig. 36 to 40, each of the tines 340 is mounted and supported on a support bar 339 via a support portion 343. The support sections 343 are the sections where the tines 340 are tightly connected at the support bar 339. The tine 340 is formed with a mounted portion 340B as a part of the supporting portion 343. The attached portion 340B is formed in a U shape. In a state where a fastening member such as a bolt 344 is inserted into the "U" shaped groove, the bolt 344 is fastened to the mounting hole 342, and the head of the bolt 344 and the supporting rod 339 sandwich the to-be-mounted portion 340B, thereby supporting and fixing the tine 340 to the supporting rod 339.

As shown in fig. 38, the tine 340 has a spring 345 in the form of a coiled string at a middle portion extending from the tip portion 340A of the tine 340 to the support portion 343. The number of windings of the spring 345 is set to 2, for example. Tines 340 have bends 346 at a location that is below the bias of spring portions 345. The portion of the tine 340 below the bend 346 bends back in an elbow shape.

(Bow-shaped cover body)

As shown in fig. 36 to 41, an arcuate cover 341 (corresponding to "cover") is provided, and the arcuate cover 341 covers a support portion 343 of the tine 340 supported by the support bar 339. The arcuate cover 341 is flexible and is formed as a thin sheet having a rectangular shape with the side along the longitudinal direction of the support rod 339 being the long side. Each 1 rest bar 339 has 1 arcuate cover 341. The arcuate cover 341 is formed to cover substantially the entire length of the support rod 339 in the longitudinal direction. A plurality of through holes 347 are formed in the arcuate cover body 341, and the through holes 347 are circular corresponding to the cross-sectional shape of the tines 340. The prongs 340 each extend through a respective through-hole 347 of the arcuate housing 341. That is, 1 tine 340 passes through 1 through hole 347. In the present embodiment, 9 through holes 347 are formed in the arcuate cover body 341. The through-holes 347 are formed to have a larger cross-sectional area than that of the tines 340, so that the tines 340 are easily pierced through the through-holes 347.

As shown in fig. 36 and 39 to 41, a plurality of fixing holes 348 are formed in the arcuate cover body 341. In the present embodiment, 5 fixing holes 348 are formed in the arcuate cover body 341. The 2 fixing holes 348 at the left and right ends are formed at positions corresponding to the 2 through holes 347 at the left and right ends in the longitudinal direction of the arcuate cover body 341. The remaining 3 fixing holes 348 are formed at positions not corresponding to the through holes 347 (positions not corresponding to the tines 340) in the longitudinal direction of the arcuate cover 341. Specifically, the remaining 3 fixing holes 348 are formed in the center portions of the intermediate positions sandwiching the 2 through holes 347.

In order to attach the arcuate cover body 341 to the support bar 339 side by a fastener such as a binding band 349, a fastening hole 348 is formed in the arcuate cover body 341. When the arcuate cover 341 is attached to the support bar 339 side by the binding 349 through the fixing hole 348, first, the binding 349 is inserted through the fixing hole 348. Subsequently, the tying band 349 is wound around the support bar 339 once and fastened in a state where the tying band 349 is inserted through the fixing hole 348. Thus, the arcuate cover 341 is tightly fixed to the support bar 339 at the fixing hole 348. As described above, the arcuate cover 341 is fixed to the support bar 339 through the fixing member such as the binding band 349 for all the fixing holes 348.

Thereby, the support portions 343 of all tines 340 can be covered by a single arcuate cover 341. The tines 340 extend through the arcuate cover 341 below the spring 345. In the mounted state of the arcuate cover on the fork 340, a portion of the arcuate cover 341 below the through hole 347 is located on the front side of the fork 340. That is, the arcuate cover 341 covers the rear side of the support portion 343 of the tine 340 and the rear side and lower side of the spring 345.

Since 1 arcuate cover 341 is used for 1 support bar 339, the support sections 343 of more than 2 tines 340 can be covered by a single arcuate cover 341. Furthermore, the support portions 343 of all tines 340 can be covered by a single arcuate cover 341.

(support bar)

Further, the support bar 339 has a first bar 350 and a second bar 351. The first bar 350 has a plurality of tines 340 arranged in a first array at unequal intervals, and the second bar 351 has a plurality of tines 340 arranged in a second array opposite the first array. The first rods 350 and the second rods 351 are alternately arranged adjacent to each other in the circumferential direction of the roll frame 337. That is, the rake reel 320 of the present embodiment has 4 support rods 339 constituted by 2 types of the 2 first rods 350 and the 2 second rods 351. The arrangement of the through holes 347 of the arcuate cover 341 corresponds to the first arrangement. In other words, if the arcuate cover 341 is used in a left-right reverse arrangement, the arrangement of the through holes 347 can correspond to a second arrangement that is opposite to the first arrangement. That is, the first rod 350 and the second rod 351 can share the arcuate cover 341 having the same configuration.

(side divider)

As described above, as shown in fig. 34, 42, and 43, the drive mechanism 335 of the raking reel 320 has a drive cover 336 on the left lateral outer side thereof to cover the drive mechanism 335. Further, a side cover 325 covering the drive mechanism 322A of the screw 322 is provided on the left lateral outer side of the harvesting frame 319. When the left side of the body is viewed from the side, the space S between the drive cover 336 and the side cover 325 becomes narrower as it approaches the second fulcrum X2. Therefore, when harvesting work is performed, the front side of the ear of the standing grain stalks on the non-harvesting side is poured into the space S and further sandwiched between the driving cover 336 and the side cover 325 and torn, which may hinder the transportation of the harvested grain stalks that are harvested smoothly.

Here, there is a side divider 326, and the side divider 326 is used to prevent standing straw on the non-harvesting side from being poured into the space S. The side divider 326 is fixed to the harvesting frame 319 in a state of being located on the outer side of the machine body than the side cover 325 and the driving cover 336, and appropriately blocks the space S.

The side divider 326 has a rod-shaped guide 352 extending rearward and upward and a rod-shaped L-shaped member 353 bent in an L-shape. The lower end portion side of the guide member 352 is connected to the front end portion of the left harvesting frame 319. One end of the L-shaped member 353 is connected to a middle portion of the guide member 352 extending from the lower end side to the upper end side.

At least when the rake reel 320 is in the normal harvesting position, the guide member 352 traverses the space S from the left harvesting frame 319 and extends to a position outside the left cross of the drive hood 336. The guide member 352 is inclined so as to be gradually deviated from the lateral outer side of the left side of the machine body as it extends from the lower end portion to the upper end portion.

The L-shaped member 353 has a longitudinal portion which is connected to a middle portion of the guide member 352 and extends rearward while being inclined rearward and downward, and a lateral portion which is bent inward of the body from the longitudinal portion and has an end connected to the left side surface of the body frame 314.

When the side divider 326 is used for harvesting, the unhulled straw positioned on the left side of the machine body is guided by the guide member 352 so as to be deviated from the outside of the machine body. Therefore, the front end of the ear which has not been harvested is not easy to enter the space S. Therefore, the problem of the conveyance disturbance of the harvested straw in the harvesting portion 313 can be reduced. Further, since the side divider 326 is realized by a simple configuration in which the rod-shaped guide member 352 and the L-shaped member 353 are combined, it is possible to minimize an increase in cost and to prevent the driver from being able to see the left side of the body from the driving operation portion 317.

(straw separating rod)

As shown in fig. 34, 42, and 43, the vicinity of the lowermost portion of the side cover 325 bulges outward toward the left lateral side of the machine body. A straw-separating rod 327 is attached to the harvesting frame 319, and the straw-separating rod 327 prevents the planted straw from colliding with the bulging portion 325A during harvesting operation. The grass dividing rod 327 has a coupling member 354 and a guide member 355. The connecting member 354 is a horizontal plate, and an inner end portion of the connecting member 354 is joined to a position on the lower rear side of the left side surface of the left harvesting frame 319. The guide member 355 is formed as a rod-shaped member that is long in the front-rear direction, and the middle part of the guide member 355 is connected to the outer end of the connecting member 354. The guide member 355 extends from the front to the rear and is positioned outside the machine body, and a rear end portion of the guide member 355 extends to the vicinity of a front end portion of the expanded portion 325A.

The straw-separating bar 327 guides the unhulled straw to the outside of the machine body from the bulging portion 325A by the guide member 355 during the harvesting operation. This prevents the uncut straw from colliding with the expanded portion 325A.

(other embodiment mode of the third embodiment mode)

(1) In the above embodiment, the example in which the plurality of through holes 347 are formed in the arcuate cover body 341 is shown, but the present invention is not limited thereto. For example, as shown in fig. 44, instead of the through holes 347, 9 transverse linear cuts 356 may be formed in the arcuate cover 341. At this time, the corresponding tines 340 are each pierced through a respective one of the cutouts 356.

By passing the tines 340 through the cutouts 356 of the arcuate cover 341 as described above, the tines 340 can be retained in the cutouts 356 by the flexibility of the arcuate cover 341. Thus, the arcuate cover 341 can be maintained in a stable positional relationship relative to the tines 340. In this case, the shape of the slit 356 is not limited to the horizontal line shape shown in fig. 44, and may be various shapes such as a vertical line shape and a cross shape. Further, the cutouts 356 preferably do not reach the ends of the arcuate cover 341 but are enclosed within the arcuate cover 341.

Further, although not shown, both the through hole 347 and the slit 356 may be formed in the arcuate cover body 341. The corresponding tine 340 may pass through each through-hole 347 and each cutout 356, respectively.

Further, in the above embodiment, the through-holes 347 are formed to have a larger cross-sectional area than the cross-sectional area of the tines 340, but the present invention is not limited thereto. For example, the through hole 347 may be formed to have a cross-sectional area smaller than that of the tine 340, and in this case, the tine 340 can be easily held in the through hole 347 by the flexibility of the arcuate cover 341.

(2) In the above embodiment, the example in which the 9 through holes 347 or the cutouts 356 are formed in the arcuate cover body 341 is shown, for example, but the present invention is not limited thereto. For example, the number of the through holes 347 and the slits 356 may be 1 to 8, or 10 or more. At this time, the number of the through holes 347 and the cutouts 356 may be the same as or greater than the number of the tines 340 or the number of the mounting holes 342.

(3) In the above embodiment, the example of passing through 1 tine 340 in 1 through hole 347 is shown, but the present invention is not limited thereto. For example, more than 2 tines 340 may also be pierced in 1 through hole 347. The shape of the through hole 347 is not limited to a circular shape, and may be a long hole shape, a cocoon shape, a shape having a slit exceeding the hole diameter in the radial direction of 1 hole, a shape having slits continuing in the radial direction of 2 holes, or the like.

(4) In the above embodiment, the example in which 5 fixing holes 348 are formed in the arcuate cover body 341 is shown, but the present invention is not limited thereto. For example, the number of the fixing holes 348 may be 1 to 4, or 6 or more.

(5) In the above embodiment, the example in which the fixing hole 348 is formed in the arcuate cover body 341 is shown, but the present invention is not limited thereto. The fixing hole 348 may not be formed intentionally. For example, the arcuate cover body 341 is supported by the supporting rod 339 by wrapping the arcuate cover body 341 around the supporting rod 339 and connecting the upper end portion of the arcuate cover body 341 to a part of the arcuate cover body 341.

(6) In the above embodiment, the example of the supporting portion 343 covering all the tines 340 by the single arcuate cover body 341 is shown, but the present invention is not limited thereto. For example, for each 1 support bar 339, a plurality of (2 or more) divided covers may be arranged in the longitudinal direction of the support bar 339, and the support portions 343 of all the tines 340 may be covered with the plurality of divided covers.

(7) In the above embodiment, the example in which the binding band 349 is used as the fixing member is shown, but the present invention is not limited thereto, and only the fixing member in the form of a wound string-like member may be used. At this time, the string-like member is inserted through the fixing hole 348 and wound around the support bar 339 by one turn, and the ends of the string-like member are tied to each other, whereby the arcuate cover 341 is fixed to the support bar 339 side.

(8) In the above embodiment, the example in which the number of windings of the spring 345 is 2 has been described, but the present invention is not limited to this. The number of windings of the spring 345 may be 1 or 3 or more. Also, tines 340 may not have spring portions 345.

(9) In the above embodiment, the support bar 339 is shown as an example having the first bar 350 and the second bar 351, the first bar 350 having the plurality of tines 340 mounted thereto in a first arrangement, and the second bar 351 having the plurality of tines 340 mounted thereto in a second arrangement that is opposite to the first arrangement, but the present invention is not limited thereto. That is, for example, when the raking reel 320 has a shape other than a square (a polygon having at least five sides) and the number of the support bars 339 is at least 5 when viewed from the side, the support bars 339 may have other bars than the first bar 350 and the second bar 351, which are completely different from the arrangement of the tines 340 of the first bar 350 and the second bar 351, for example. Further, the support bar 339 may be provided with only a plurality of first bars 350, and the plurality of tines 340 may be arranged and mounted on the first bars 350 in a first array at unequal intervals. Further, the support bar 339 may have another bar on which a plurality of tines 340 are arranged in an equally spaced array. In these cases, the arcuate cover 341 may be provided depending on the type of the support rod 339.

(10) In the above embodiment, various configurations are set in the case of reciprocating harvesting or the like such that the non-harvesting side is positioned on the left side, but the non-harvesting side may be positioned on the right side. In this case, the side straw divider 326 and the straw dividing rod 327 are preferably provided on the right side of the machine body.

(11) In the above-described embodiment, the expressions of left and right are used, but the present invention may adopt a left-right positional relationship opposite to the above-described embodiment.

(fourth embodiment)

Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings.

First, the overall structure of the combine harvester will be described with reference to fig. 45.

Fig. 45 shows a combine harvester for harvesting crops such as rice and wheat, for example, a general-type combine harvester (all-in-one combine harvester). The front part of the combine harvester is provided with a harvesting part 401 for harvesting and planting vertical grain stalks. A crawler type traveling device 402 capable of traveling between farmlands is provided behind the harvesting unit 401. A body frame 403 is provided above the traveling device 402.

A threshing device 404 for threshing the harvested grain stalks is provided on the left side of the machine body frame 403. A feeder 405 is provided behind the harvesting unit 401, and the feeder 405 conveys the harvested straws from the harvesting unit 401 to a threshing device 404. A driver's cab 406 on which an operator rides is provided on the right front portion of the body frame 403. A grain storage unit (not shown) for storing grains after threshing is provided at the right rear portion of the body frame 403. The grain storage part can be box type or hopper type.

According to the above configuration, the combine harvester harvests the standing grain stalks by the harvesting unit 401 while traveling between fields by the traveling device 402, conveys the harvested grain stalks to the threshing device 404 by the feeder 405, and performs threshing processing on the harvested grain stalks by the threshing device 404.

Next, the feeder 405 will be described with reference to fig. 46 to 49.

As shown in fig. 46, the feeder 405 has a feeding box 407, and the feeding box 407 communicates the harvesting portion 401 with the threshing device 404. A driven turning body 408 that can be turned is provided at the tip end (inlet side end) of the feed box 407. A rotatable driving rotator 409 is provided at the rear end (outlet side end) of the feed box 407. The driving turning body 409 is provided on the input shaft 410 to which power is input in the left-right direction. A conveying chain 412 is wound around the driven turning body 408 and the driving turning body 409. The input shaft 410 is provided with an operation nut 411 (corresponding to an "operation portion" of the present invention). The harvested straws are carried to the threshing device 404 by the carrying chain by the rotation of the driving rotary body 409 and the driven rotary body 408.

As shown in fig. 46 and 47, a reinforcing groove member 417 is coupled to the right side portion of the feed box 407 (the side portion of the feed box 407 on the driver's part 406 side). The groove member 417 extends in a direction perpendicular to the conveying direction (longitudinal direction) of the feeder 405 when viewed from the side. The trough member 417 is welded and connected to the right side portion of the feed box 407 in a state of being opened to the right lateral outside. A storage section 419 is provided in the right side portion of the feed box 407, the storage section 419 being capable of storing the tool 418, and details of the storage section 419 will be described later.

The tool 418 is a wrench-like tool. Specifically, the tool 418 has a mouth portion 430 and a handle portion 431.

The mouth 430 is a portion that can be disposed on the operation nut 411. That is, as described later in detail, when the operating nut 411 is constituted by, for example, a hexagonal nut, the mouth portion 430 is formed in a shape that can be disposed in the hexagonal nut. A plate 430a for reinforcing the mouth portion 430 is welded to the inside of the opening of the mouth portion 430.

The grip portion 431 is formed of a bar-shaped flat plate. A mouth portion 430 is welded and connected to a distal end portion of the grip portion 431. A round hole 431a (corresponding to a "hole" of the present invention) is formed at the base end of the grip portion 431 (see fig. 49).

As shown in fig. 49, a pair of right and left sleeve portions 413 is provided at a rear end portion of the feed box 407. The pair of left and right sleeve portions 413 project laterally outward from the left and right side portions at the rear end portion of the feed box 407. The pair of left and right sleeve portions 413 rotatably support the input shaft 410 via a pair of left and right bearings 414. Portions of the pair of left and right collar portions 413 which protrude laterally outward are swingably supported by the pair of left and right brackets 415. A pair of left and right brackets 415 are coupled to the front portion of the threshing device 404 by bolts 416.

A left end portion of the input shaft 410 (an end portion of the input shaft 410 located on the opposite side of the driver 406) protrudes leftward and laterally outward from the left sleeve portion 413 out of the pair of left and right sleeve portions 413. An input pulley 420 and an output sprocket 421 are provided in order from left to right in a portion projecting laterally outward to the left end of the input shaft 410. A belt 422 is wound around the input pulley 420, and the belt 422 is used to transmit power of a fan 424 (see fig. 45) included in the threshing device 404 to the input shaft 410. A chain 423 is wound around the output sprocket 421, and the chain 423 transmits power of the input shaft 410 to a harvesting drive shaft 425 (see fig. 45).

A right end portion of the input shaft 410 (an end portion of the input shaft 410 on the driver 406 side) protrudes rightward and laterally outward from the right sleeve portion 413 out of the pair of left and right sleeve portions 413. Three step portions 426, 427, 428 are formed at the right end portion of the input shaft 410, and the diameter of the step portion of the three step portions 426, 427, 428 that is closer to the right end portion side (the end portion side in the axial direction of the input shaft 410) is smaller. The three step portions 426, 427, 428 are configured as a small diameter portion 426, a medium diameter portion 427, and a large diameter portion 428 in this order from right to left.

The large diameter portion 428 is a step closest to the center portion side (the center portion side of the input shaft 410) in the left-right direction (the axial center X direction of the input shaft 410), that is, a step on the leftmost end portion side, of the three steps 426, 427, 428. The large diameter portion 428 has the largest diameter among the three step portions 426, 427, 428. The right bearing 414 of the pair of left and right bearings 414 is provided in the large diameter portion 428, and the pair of left and right bearings 414 rotatably support the input shaft 410. The bearing 414 is positioned in the left-right direction by a stopper ring 414 a.

The intermediate diameter portion 427 is a stepped portion between the small diameter portion 426 and the large diameter portion 428 among the three stepped portions 426, 427, 428. The intermediate diameter portion 427 is formed in a right end portion of the input shaft 410 so as to protrude rightward and laterally outward. The intermediate diameter portion 427 is smaller than the large diameter portion 428 and larger than the small diameter portion 426 in the three step portions 426, 427, 428. The intermediate diameter portion 427 is provided with an operation nut 411 capable of sliding in the left-right direction. Specifically, the operation nut 411 is irregularly fitted (for example, spline fitted) to the intermediate diameter portion 427. That is, the operating nut 411 is provided so as not to be rotatable with respect to the input shaft 410. The intermediate diameter portion 427 has a spline groove 427a formed therein.

The small diameter portion 426 is a step portion located on the side closest to the end portion in the left-right direction, that is, a step portion located on the rightmost end portion side, among the three step portions 426, 427, 428. The small-diameter portion 426 is formed in a right end portion of the input shaft 410 to protrude rightward and laterally outward. The small diameter portion 426 is provided with a fastening nut 429 (corresponding to a "fastening member" of the present invention). Specifically, the fastening nut 429 is screwed into the small diameter portion 426. The small diameter portion 426 is subjected to a screwing process. The fastening nut 429 fastens the operating nut 411 in the left-right direction. That is, the operating nut 411 is held and fixed in the lateral direction by the fastening nut 429 and the large-diameter portion 428.

Next, the operation nut 411 will be described with reference to fig. 49 and 50.

As shown in fig. 49 and 50, the operating nut 411 can be provided with a manually operated tool 418. By providing the tool 418 on the operation nut 411, the input shaft 410 can be operated manually in reverse rotation by the tool 418. The operating nut 411 is formed of, for example, a hexagonal nut. The operating nut 411 is detachably provided on the input shaft 410. That is, by fastening the operation nut 411 provided slidably in the left-right direction with the fastening nut 429, the operation nut 411 can be prevented from coming off, and by loosening the fastening nut 429, the operation nut 411 can be removed from the input shaft 410. The operating nut 411 is provided at a right end portion of the input shaft 410 and is exposed to the outside from the feeder 405. That is, the operating nut 411 protrudes rightward and laterally outward from the right sleeve portion 413 of the pair of left and right sleeve portions 413.

With the above configuration, when the input shaft 410 is operated to reverse the rotation, the mouth 430 of the tool 418 is disposed behind the operation nut 411 (see fig. 50), and the tool 418 is lifted up (in the direction of arrow B shown in fig. 47), so that the input shaft 410 rotates in reverse, and the feeder 405 rotates in reverse. At this time, even when the tool 418 is lifted up, the notch 436a (see fig. 51) is formed in the cover 436 covering the front portion of the threshing device 404, so that the tool 418 does not interfere with the threshing device 404.

Next, the housing 419 will be described with reference to fig. 46 to 48.

As shown in fig. 46 to 48, the housing 419 has a groove member 417 and a leaf spring 432. The plate spring 432 is attached to the right side of the feed box 407, and specifically, the plate spring 432 is attached to the upper portion of the right side of the feed box 407. The leaf spring 432 is disposed within an opening of the channel member 417. The plate spring 432 is coupled to the right side portion of the chute member 417 and the feed box 407 by a bolt 433. The leaf spring 432 clamps the tool 418 (the handle portion 431) in cooperation with the groove member 417. That is, the tool 418 is held by the leaf spring 432 and the open both ends 417a of the groove member 417. The tool 418 is stored in a posture substantially parallel to the conveying direction (longitudinal direction) of the feeder 405 when viewed from the side.

In addition, a round pin 434 (corresponding to a "support portion" or a "pin portion" in the present invention) for supporting the tool 418 is provided on the right side portion of the feed box 407 in addition to the housing portion 419. The round pin 434 can be inserted into a round hole 431a formed in the handle portion 431 of the tool 418. A round pin 434 is welded to the right side of the feed box 407. An approximately L-shaped bracket 435 is welded to the right side of the feed box 407, and the bracket 435 supports a round pin 434. The round pin 434 and the bracket 435 are welded together.

According to the above configuration, when the input shaft 410 is reversely rotated, the tool 418 is taken out from the housing portion 419. Specifically, the tool 418 is lifted up (in the direction of arrow a shown in fig. 47) with the round pin 434 as a fulcrum, and the tool 418 is taken out from the housing portion 419.

(other embodiment mode of the fourth embodiment mode)

(1) In the above embodiment, the operation nut 411 is detachably provided on the input shaft 410, but the operation nut 411 may be integrally formed with the input shaft 410.

(2) In the above embodiment, the "operation portion" is the operation nut 411, but the "operation portion" may have an arrangement hole in which a tool can be arranged. Further, the operating nut 411 may be an angular nut (e.g., a square nut or the like) other than a hexagonal nut.

(3) In the above embodiment, the input shaft 410 has three steps 426, 427, and 428, but two or four or more steps may be formed in the input shaft 410.

(4) In the above embodiment, the housing 419 is provided on the right side of the feed box 407, but the housing 419 may be provided on the left side, the upper surface, or the lower surface of the feed box 407.

(5) In the above embodiment, the "support portion" is the round pin 434, but the "support portion" may be only a receiving portion or an angular pin. When the "support portion" is an angular pin, an angular hole is formed in the tool 418 instead of the circular hole 431 a.

(6) In the above embodiment, the bearing 414 is positioned by the stopper ring 414a, but the bearing 414 may be positioned by the operating nut 411.

[ industrial applicability ]

The invention can be used for combine harvesters such as common combine harvesters and the like.

Description of the reference numerals

4: a machine body frame;

7: a threshing device;

7A: a sidewall portion;

8: a grain recovery part;

94: a grain storage hopper;

140: a hopper support frame;

140A: a transverse extending part;

140B: a longitudinal extension part;

141: a flange portion;

142: a hopper mounting section;

143: a middle extension part;

146: a reinforcing member;

149: a shielding component;

158: an armrest member;

160: a bag support;

163: an auxiliary pedal;

201: an auxiliary sunshade portion;

202: a longitudinal support;

206: a front and rear connection support rod;

207: a transverse support bar;

208: a canopy member;

209: a middle front and rear connecting rod;

210: a reinforcing connecting rod;

f: a storage bag;

320: raking the reel;

337: a reel frame;

339: a support bar;

340: a tine;

340A: a front end portion;

340B: an installed part;

341: an arcuate cover ("cage");

343: a support portion;

345: a spring portion;

347: penetrating through the hole;

350: a first bar;

351: a second bar;

356: cutting;

401: a harvesting part;

404: a threshing device;

405: a feeder;

406: a driving section;

407: a feeding box;

410: an input shaft;

411: an operation nut (operation part);

414: a bearing;

417: a trough member;

418: a tool;

419: a storage section;

426: a small-diameter portion (step portion);

427: a middle diameter part (step part);

428: a large diameter portion (step portion);

429: a fastening nut (fastener);

431 a: round holes (bores);

432: a plate spring;

434: round pin (support part, pin part).

Claims (10)

1. A combine harvester is characterized in that,

the disclosed device is provided with: a threshing device for threshing the harvested rice straw; and a grain recovery unit located on the lateral side of the threshing device for recovering grains threshed by the threshing device,

a supporting frame for supporting the grain recovering part is formed by a cylindrical component and the inner space is opened outwards,

the support frame is configured to have a lateral frame portion extending in a horizontal direction,

the transverse frame part is connected with the side wall part of the grain recovery part side of the threshing device,

the fuel tank is provided in a state of being located in the vicinity of the support frame and below the lateral frame portion in a plan view,

an air release pipe made of a flexible material and communicating with the internal space of the fuel tank is provided in a state of linearly extending in the vertical direction from a connected portion connected to the fuel tank toward the lateral frame portion,

an upper end portion of the air release duct is connected to a connected portion formed at the lateral frame portion in a state of communicating with an inner space of the support frame,

the support frame is provided with a vertical frame portion extending downward in a continuous state from an end portion of the lateral frame portion opposite to the side wall portion,

a plate-like mounting body is connected and fixed to a lower end portion of the vertical frame portion,

the mounting body is connected with the machine body frame,

a first through hole is formed in the mounting body in a state of being connected to the inner space of the support frame,

a second through hole penetrating in the vertical direction and opening downward is formed at a portion of the body frame connected to the first through hole, and the second through hole forms a communication path communicating with the outside.

2. A combine harvester is characterized in that,

the disclosed device is provided with: a threshing device for threshing the harvested rice straw; and a grain recovery unit located on the lateral side of the threshing device for recovering grains threshed by the threshing device,

a supporting frame for supporting the grain recovering part is formed by a cylindrical component and the inner space is opened outwards,

the support frame is configured to have a lateral frame portion extending in a horizontal direction,

the transverse frame part is connected with the side wall part of the grain recovery part side of the threshing device,

the fuel tank is provided in a state of being located in the vicinity of the support frame and below the lateral frame portion in a plan view,

an air release pipe made of a flexible material and communicating with the internal space of the fuel tank is provided in a state of linearly extending in the vertical direction from a connected portion connected to the fuel tank toward the lateral frame portion,

an upper end portion of the air release duct is connected to a connected portion formed at the lateral frame portion in a state of communicating with an inner space of the support frame,

the support frame is configured to have an intermediate strut which is connected to a middle portion in the longitudinal direction of the lateral frame portion, extends in the vertical direction, and has a lower end portion supported by the machine body frame,

the air release pipe is provided in a state of extending upward along the intermediate support column,

the air release pipe is provided with a holding member for holding the air release pipe on the intermediate support in an upward extending posture.

3. A combine harvester according to claim 1 or 2,

the connected portion is formed in the lateral frame portion in a state of being opened downward.

4. A combine harvester according to claim 3,

the connected portion is formed in the lateral frame portion in a downwardly convex state.

5. A combine harvester according to claim 1 or 2,

a connected portion of the fuel tank side to which the air release pipe is connected is formed on an upper surface of the fuel tank.

6. A combine harvester according to claim 5,

the air release pipe is connected to the upper surface of the fuel tank at a position closer to the threshing device in the machine width direction.

7. A combine harvester according to claim 5,

a fuel supply port for supplying fuel to the fuel tank is formed in an upper surface of the fuel tank,

an oil supply pipe connected to the oil supply port in a communicating state,

the air release pipe is located in front of the oil supply pipe and provided in a state of overlapping with the oil supply pipe when viewed from the rear.

8. A combine harvester according to claim 1 or 2,

a plate-shaped horizontal mounting body is connected and fixed to an end portion of the horizontal frame portion on the side of the side wall portion,

the lateral mounting body is coupled to a member to be mounted provided on the side wall portion,

a through hole is formed in the horizontal installation body in a state of being connected to the inner space of the support frame,

a communication path that opens laterally outward is formed at a portion of the mounted member that is connected to the through hole.

9. A combine harvester according to claim 2,

the connected portion is provided at a position of the lateral frame portion near the intermediate portion pillar,

the tank-side connected portion to which the air release pipe is connected is formed in a portion of the upper surface of the fuel tank near the intermediate strut.

10. A combine harvester according to claim 1 or 2,

the air release pipe, the fuel return pipe, and the fuel supply pipe of the fuel tank are connected to the upper surface of the fuel tank at a position closer to one end side in the machine body width direction, so that the upper surface of the fuel tank is formed at the other end side in the machine body width direction as a flat surface without a projection, and the work table is constituted by a portion where the flat surface is formed.

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