JPH09215430A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester, superior in operability and transportability by preventing unharvested stalks from falling down or being hung, interposing auxiliary guides respectively following up the deformation of narrow guide and side step. SOLUTION: On the unharvested field side of a preprocessing part formed at the front part of a traveling machine body, a narrow guide 9, which can be freely deformed into operating attitude to be expanded outside from the preprocessing part and storage attitude turned upward from the operating attitude, is provided and on the unharvested field side of the traveling machine body, on the other hand, a side step 18 to be freely deformed into an operating attitude protruded outside from the traveling machine body and storage attitude proximate to the traveling machine body is formed. Between the rear terminal part of the narrow guide 9 and the front terminal part of the side step 18, auxiliary guides 19 respectively following up the deformation of the narrow guide 9 and the side step 18 are interposed. In this case, it is preferably to vertically switch the narrow guide link position of the auxiliary guide 19 in the state of storing the narrow guide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a combine having a narrow guide which can be stored on the uncut side of a pretreatment section and a side step which can be stored on the uncut side of a traveling machine body. It is a thing.

[0002]

2. Description of the Related Art In general, this type of combine includes
On the uncut land side of the pre-processing unit provided in the front part of the traveling aircraft,
A narrow guide is provided to prevent the uncut culm from falling toward the pretreatment section, and the narrow guide extends outward from the pretreatment section, and the narrow guide is rotated upward from the acting posture to move forward. There is one that can be transformed into a storage posture along the side surface of the processing unit.

[0003]

On the other hand, on the uncut area side of the traveling machine body, an action posture protruding outward from the traveling machine body,
It is known that a side step that can be transformed into a storage posture close to the traveling body is provided, but when performing mowing work with the side step in the working posture, the side step between the narrow guide and the side step is known. There was a possibility that the uncut culm could fall into the gap and damage the uncut culm. In addition, it is possible to extend the rear end of the narrow guide to the front end of the side step to regulate the fall.However, even if this is done, there may be a step between the narrow guide and the side guide depending on the posture of the side step. If there is a possibility that it will be caught and the uncut culm is caught, and if the extension part is close to the stalk transfer route when the narrow guide is stored, it will be extended when cutting the ridges when the narrow guide is stored. When the installation part comes into contact with the plant base of the culm and causes conveyance disturbance, or when the narrow guide is also stored and the manual operation is performed, the extension part contacts the manually operated stalk and the workability is reduced. There was a possibility to make.

[0004]

SUMMARY OF THE INVENTION The present invention was created for the purpose of providing a combine capable of solving these problems in view of the above-mentioned circumstances, and is provided in the front part of a traveling body. On the uncut area side of the pretreatment unit provided, it is possible to transform into a working posture that projects outward from the pretreatment unit and a storage posture that rotates upward from the working posture and follows the side surface of the pretreatment unit. While providing the narrow guide, on the uncut side of the traveling machine body, a combine step is provided, in which a side step that can be transformed into an action posture protruding outward from the traveling machine body and a storage posture close to the traveling machine body is provided, An auxiliary guide is provided between the rear end of the narrow guide and the front end of the side step to follow the transformation of the narrow guide and the side step. That is, since the auxiliary guide smoothly connects the narrow guide and the side step regardless of the posture of the side step, it is possible to prevent the uncut culm from falling or being caught, and also to make the side step work posture. If the mowing operation is performed in this manner, there is an advantage that the collapse of the uncut stems can be restricted over a long range from the front end of the narrow guide to the rear end of the side step.

In addition, in the above-mentioned one, the narrow guide connecting position of the auxiliary guide can be switched up and down in the narrow guide housed state. In other words, even when the auxiliary guide is close to the stalk transfer path when the narrow guide is stored, it is possible to avoid contact with the stalk by switching the narrow guide connecting position of the auxiliary guide to the lower side. It is possible to eliminate the inconvenience of causing conveyance irregularity at the time of mowing the ridge and reducing the workability of the manual operation.

[0006]

Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine traveling machine, and the traveling machine body 1 includes a pre-processing unit 2 for cutting stalks at the front of the machine, a threshing selection unit 3 for performing a threshing process and a selection process for the cut stalks, a sorting process. A grain tank 4 for storing the crushed grains, a post-processing unit (not shown) for discharging the threshing culms, a pair of left and right crawler traveling bodies (not shown), and the like are provided.

The pretreatment section 2 comprises a pretreatment frame 5 which is vertically movable to the traveling machine body 1, a divider 6 for weeding stems, a raising device 7 for raising stems, and a raised stem for stems. A cutting blade device (not shown) for cutting the root of the plant, a depth handling device 8 for transferring the trimmed vertical stem culm to the threshing selection unit 3 while transforming it into a horizontal posture, and the like are assembled. However, all of the above basic configurations are conventional.

Reference numeral 9 denotes a narrow guide which is arranged on the uncut area side (left side surface portion) of the pretreatment section 2 so as to face in the front-rear direction, and a hook member 9f is inserted into the front end portion of the narrow guide 9. On the other hand, a substantially U-shaped support stay 9a is integrally welded to the rear half portion. And the hook member 9
While f is locked to the front bracket 11 protruding from the divider support stay 10, the plate 12 welded to the lower end of the support stay 9a is attached to the rear bracket 13 provided on the pretreatment frame 5 side with the first bolt 14 However, since the plate 12 is rotatable about the first bolt 14 as a fulcrum, the narrow guide 9 is projected outward from the pretreatment unit 2 to prevent the uncut culm from falling. It is possible to transform the working posture and the storage posture along the side surface of the preprocessing unit 2 by rotating upward from the working posture.

Reference numeral 15 is a second bolt projectingly provided on the rear bracket 13. The second bolt 15 has an arc-shaped (center is the first bolt 14) elongated hole 12a formed in the plate 12. The friction ring 16 that penetrates the second bolt 15 is in sliding contact with the plate 12, and the friction ring 1
Since the ammunition machine 17 for urging 6 toward the plate 12 is incorporated, the narrow guide 9 can be held at an arbitrary rotational position by the frictional resistance generated between the friction ring 16 and the plate 12. Has become.

On the other hand, reference numeral 18 denotes a side step which is arranged at the lower end of the traveling machine body 1 on the uncut side (lower end of the left side surface) in the front-rear direction, and the side step 18 is the threshing selection section 3 It is used for cleaning and maintenance of the vehicle, but it has an action posture that projects outward from the traveling machine body 1,
It is provided so as to be able to slide and transform into a storage posture in the vicinity of the traveling machine body 1, and can be fixed at an arbitrary protruding position by a fixing mechanism (not shown).

Further, 19 is an auxiliary guide, and a U-shaped engaging fitting 19a is integrally provided at the front end portion of the auxiliary guide 19, and the engaging fitting 19a is fitted into the narrow guide 9. A state in which the rear end of the auxiliary guide 19 is allowed to slide and swing on the ring metal fitting 21 provided at the front end of the side step 18 while engaging with a hook metal fitting 20 described later provided at the rear end. Is inserted in. That is, between the rear end of the narrow guide 9 and the front end of the side step 18, an auxiliary guide 19 that can follow the transformation of the narrow guide 9 and the side step 18 is provided.
Since the auxiliary guide 19 smoothly connects the narrow guide 9 and the side step 18 regardless of the posture of the side step 18, it is possible to prevent the uncut culm from falling and being caught. Step 1
When the cutting operation is carried out with No. 8 acting, the collapse of the uncut culm can be controlled over a long range from the front end of the narrow guide to the rear end of the side step.

By the way, the support stay 9a includes a base stay 9b to which the plate 12 is welded, and the base stay 9b.
a front stay 9c extending from the front end of b to be welded to the middle portion of the narrow guide 9, and a rear stay 9c extending from the rear end of the base stay 9b to be welded to the rear end of the narrow guide 9.
It is formed into a U-shaped member integrally having d. However, a U-shaped plate 22 is slidably fitted in the rear stay 9d, and at the opening side of the U-shaped plate 22,
The hook metal fitting 20 is slidably inserted from the rear side to externally stop the U-shaped plate 22.
Is always urged forward by a bullet 24 that is interposed between the washer 23 that is locked to the non-hook side end and the U-shaped plate 22.

Further, on the base end side of the rear stay 9d,
The short cut pipe 25 is welded to the front and back, while the narrow guide 9 has a pipe hole 9e formed at the rear end thereof. Then, the U-shaped plate 22 is slid toward the tip side along the rear stay 9d, and the hook tip 20 is pulled backward while pulling the hook metal fitting 20 backward.
The auxiliary guide 19 can be set to the working posture by inserting it into the e side, while the U-shaped plate 22 is attached to the rear stay 9
The auxiliary guide 19 can be set in the lower storage posture by sliding it along the base end side along d and pulling the hook fitting 20 rearward and inserting the hook tip into the pipe hole 25a of the pipe 25. That is, since the narrow guide connection position of the auxiliary guide 19 can be switched up and down in the narrow guide stored state, even if the auxiliary guide 19 is close to the stem-culm transport path when the narrow guide 9 is stored, By switching the narrow guide connecting position to the lower side, it is possible to avoid contact with the culm.

Further, reference numeral 26 is a stopper welded to the front end portion and the base end side of the rear stay 9d (in the vicinity of the upper portion of the pipe 25), and the stopper 26 serves to actuate the auxiliary guide 19 or the lower storage attitude. When set to, the U-shaped plate 22 enters into the U-shaped plate 22 to regulate the rotation of the U-shaped plate 22 and prevent the auxiliary guide 19 from rattling.

In the structure constructed as described above, an auxiliary guide 19 is provided between the rear end of the narrow guide 9 and the front end of the side step 18 so as to be able to follow the transformation of the narrow guide 9 and the side step 18, respectively. Since it is interposed, the narrow guide 9 and the side step 18 are smoothly connected by the auxiliary guide 19 regardless of the posture of the side step 18, and as a result, it is possible to prevent the uncut culm from falling or being caught. Forgive me, side step 18
When the cutting operation is performed in the working posture, the collapse of the uncut stems can be restricted over a long range from the front end of the narrow guide to the rear end of the side step.

Moreover, since the narrow guide connecting position of the auxiliary guide 19 can be switched up and down in the narrow guide stored state, the auxiliary guide 19 is stored when the narrow guide 9 is stored.
Even if is close to the stem culm conveyance route, contact with the stem culm can be avoided by switching the narrow guide connecting position of the auxiliary guide 19 to the lower side, and as a result, conveyance disorder occurs when cutting the ridges. In addition, it is possible to eliminate the inconvenience of reducing the workability of the manual operation.

Further, since the hook metal fitting 20 for locking the auxiliary guide 19 at each position maintains the locked state by the urging of the bullet 24, a special tool is used when changing the position of the auxiliary guide 19. Without this, the locking position can be switched by an easy operation of pulling the hook metal fitting 20, and the hook metal fitting 20 can be easily attached and detached when the hook metal fitting 20 is pulled.

Further, when the auxiliary guide 19 is set in the working posture, the hook metal fitting 20 is inserted into the pipe hole 9e at the rear end of the narrow guide, so that there is almost a step between the narrow guide 9 and the auxiliary guide 19. As a result, it is possible to prevent stagnation and catching of uncut stems due to steps.

The auxiliary guide 1 is attached to the rear stay 9d.
When 9 is set in the working posture or the lower storage posture,
Since the stopper 24 that enters the U-shaped plate 22 to regulate the rotation of the U-shaped plate 22 is provided, it is possible to prevent the auxiliary guide 19 from rattling due to the rotation of the U-shaped plate 22.

[Brief description of drawings]

FIG. 1 is a plan view of a combine.

FIG. 2 is a schematic front view of a pretreatment unit showing a storage state of a narrow guide.

FIG. 3 is a schematic side view of the same.

FIG. 4 is a rear view of the narrow guide.

FIG. 5 is a side view showing a rotation support portion of the narrow guide.

6A is a side view showing a narrow guide connecting portion of an auxiliary guide, and FIG. 6B is a plan view.

FIG. 7A is a side view of essential parts showing a state where the work posture is set, and FIG. 7B is a rear view.

FIG. 8A is a side view of an essential part showing a state in which the lower storage posture is set, and FIG. 8B is a rear view.

[Explanation of symbols]

 1 Traveling Aircraft 2 Pretreatment Section 9 Narrow Guide 9a Support Stay 18 Side Step 19 Auxiliary Guide 20 Hook Metal Fitting 22 U-shaped Plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoshi Tanaka, 667 Izuya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Tadamitsu Morihiro 667 Oji-cho, Hiji-zumo-cho, Yatsuka-gun, Shimane Prefecture Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A working posture, which extends outward from the pretreatment portion, on the uncut area side of the pretreatment portion provided at the front portion of the traveling machine body, and a pretreatment portion which is rotated upward from the working posture. While providing a narrow guide that can be transformed into a storage posture along the side,
In a combine that is provided with a side step that can be transformed into an operating posture that projects outward from the traveling body and a storage posture that is close to the traveling body on the uncut area side of the traveling body,
A combine having an auxiliary guide interposed between the rear end of the narrow guide and the front end of the side step to follow the transformation of the narrow guide and the side step. 2. The combine according to claim 1, wherein the narrow guide connecting position of the auxiliary guide can be switched up and down in the narrow guide stored state.