JPH0657123U - Combine dust cover - Google Patents

Abstract

(57) [Summary] [Purpose] The combine dust cover is configured so that the dustproof effect is improved without affecting the manual operation or the raising and lowering of the reaper. [Structure] In the rear dust cover 22 provided above the mowing section 9 of the combine A, rotation fulcrums X, Y, Z are provided,
The rotation support point X and the rotation support point Y are connected by inserting the rod portion 25b of the slide rod 25 inside the arm 31.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a dust cover which covers an upper part between a harvesting part and a threshing part inlet of a combine.

[0002]

[Prior art]

 Conventionally, as a method of protecting an operator from dust generated from a mowing section or the like, there has been a method in which a large combine is separated by a cabin and a small combine is covered with a dust cover above the mowing section.

[0003]

[Problems to be solved by the device]

 However, in the conventional small combine, when the dust cover is fixed by screws etc., it is covered only above the raising device and near the entrance of the threshing part to enable manual operation and lifting of the mowing part. The entire area from above the reaping section to above the threshing section entrance was not covered. Also, if the dust cover is a slide type, the front dust cover and the rear dust cover interfere with each slide, making it impossible to secure sufficient space for manual work and maintenance. There was a problem in raising and lowering the department. Therefore, in practice, the operator must work while the combine is operating while dust is scattered, and if a jam occurs in the grain culm transport section, remove the dust cover each time. There was a problem that it required a lot of work because maintenance had to be performed.

[0004]

[Means for Solving the Problems]

 The problems to be solved by the present invention are as described above, and the means for solving the problems will be described below. That is, a dust cover consisting of a front dust cover and a rear dust cover is provided above the combine harvesting section and the threshing section inlet, and a rotation fulcrum X of the slide rod is provided in the horizontal axis direction inside the rear dust cover midway section. A rotation fulcrum Y of the arm is provided in the horizontal axis direction of the end of the support frame extending above the reaping section, and the rod portion of the slide rod is inserted inside the arm between the rotation fulcrum X and the rotation fulcrum Y. The rear end portion of the rear dust cover is detachably connected to an engaging portion rotatable about a pivot fulcrum Z provided near the entrance of the threshing portion.

[0005]

[Action]

 The operation of the present invention will be described. When carrying out manual operations or maintenance, slide the rear dust cover of the divided dust cover forward, and the rear end of the rear dust cover will rotate at the fulcrum of the engaging part near the threshing part inlet. It rotates around Z and comes off, and is locked in front of the entrance to the threshing unit. At the same time, the arm rotates about a rotation fulcrum Y provided in the horizontal axis direction at the tip of the support frame, and the slide rod inserted inside the arm is also provided in the horizontal axis direction inside the rear dust cover midway part. It rotates around the rotation fulcrum X, and the upper part of the threshing part entrance is opened. Next, when the mowing part moves up and down with the dust cover closed, the rear end part of the rear dust cover rotates about the rotation fulcrum Z while being locked by the engagement part near the entrance of the threshing part. At the same time, the arm rotates around the rotation fulcrum Y at the tip of the support frame, and the slide rod inserted inside the arm also rotates around the rotation fulcrum X.

[0006]

【Example】

 The problems to be solved and the means for solving the present invention are as described above. Next, a specific configuration of the present invention will be described with reference to the accompanying drawings. 1 is an overall perspective view of the combine, FIG. 2 is a side view with the dust cover of the present invention attached, FIG. 3 is a side view of the combine with the dust cover of the present invention opened, and FIG. Fig. 5 is a side view of the dust cover of the present invention in a closed state, Fig. 5 is a side view of the dust cover of the present invention in which the cutting portion is lowered, Fig. 6 is a locus diagram when the dust cover of the present invention is closed, and Fig. 7 is FIG. 8 is a locus diagram of the present invention when the dust cover is opened, FIG. 8 is a front view showing another method of fixing the rear dust cover, and FIG. 9 is a side view of the same.

The overall structure of the combine will be described with reference to FIG. The combine main body is placed on the traveling crawler 1 of the combine A. The combine main body is provided with a threshing section 6 in which a feed chain is stretched to the left side and which has a handling cylinder and a processing cylinder and a threshing section 6. The grain tank 15 for loading the grain of the grain tank through the lifting cylinder, the discharge auger 16 for transporting the grain of the grain tank 15 to the outside of the machine are provided in the central portion, and the cutting blade and the grain culm transport mechanism are provided in front of the grain tank 15. The cutting section 9, the front column 17, the side column 18, an operating section 20 including the driver's seat 19, the rear straw processing section 13 and the like are provided to continuously cut the grain stems and thresh.

The dust cover of the present invention is divided into a front dust cover 23 and a rear dust cover 22, and the front portion of the front dust cover 23 is fixed to the upper part of the raising case 12 above the reaper 9 and the rear dust cover. 22 is provided to cover the space between the rear part of the front dust cover 23 and the entrance of the threshing part 6. The front dust cover 23 is a fixed type, while the rear dust cover 22 is movable in the front-rear direction so that it can be opened and closed. Is configured. The structure of the rear dust cover 22 will be described below with reference to FIG.

A stopper rubber 24 is attached to the inner front edge portion 22a of the rear dust cover 22, and a shaft support portion 26 for pivotally supporting the pivot shaft 25a of the slide rod 25 is provided in the middle portion inner side 22b. A spring hook 28 for engaging with a spring hook holder 27 protruding from the front cover 6a of the threshing unit 6 is connected to the rear end 22c, and the rear dust cover 22 is attached to the rear upper end 22d in the front-back direction. A handle 29 is fixedly provided for sliding the slide handle to the.

Then, the rotation support point X of the pivot shaft 25 a of the slide rod 25 and the support frame 30 extending rearward and upward from the cutting section 9 are arranged so that the rear dust cover 22 can be moved in the front-rear direction and opened and closed. The pivotal fulcrum Y of the arm 31 pivotally supported by the tip portion 30a is connected by inserting the rod portion 25b of the slide rod 25 inside the arm 31 in a slidable manner.

The arm 31 has an L-shaped cylindrical shape, and the L-shaped configuration makes it possible to mount the rear dust cover 22 close to the front dust cover 23. 22 When opened, sufficient open space can be secured for manual work and maintenance work.

The case where the rear dust cover is opened in FIG. 3 will be described. When the reaper 9 is in the standard position and the rear dust cover 22 is opened to perform a manual operation or a maintenance work, the handle 29 of the rear dust cover 22 is grasped and lifted, and is locked by the spring hook holder 27. When the spring hook 28 is removed (slide rod 25 extends at this time) and slid forward, at the same time, the arm 31 integrally rotates about the rotation fulcrum Y, and the rear dust cover 22 interferes with the front dust cover 23. Ride on the front dust cover 23 and open it.

A spring hook 28, which is disengaged from the spring hook holder 27 so as to prevent the rear dust cover 22 from rattling due to vibration or the like, projects from the cutting sub-panel 32 between the front dust cover 23 and the threshing unit 6. It is locked to the fixed bracket 33. At this time, the center of gravity of the rear dust cover 22 is kept from the rotation fulcrum Y at the time of opening so that the rear dust cover 22 can be kept open even if the spring hook 28 is not locked to the fixing bracket 33. It is set to come forward. It is also possible to raise the mowing part 9 in this state. When the mowing part 9 is raised as shown in FIG. 7, the rear dust cover 22 rotates around the fixing bracket 33, and the front dust cover 22 is rotated. The distance between the rear dust cover 23 and the rear dust cover 22 is maintained by the slide rod 25 and the arm 31 and does not interfere.

The rear dust cover when the reaper is raised in FIGS. 4 and 6 will be described. When the reaper 9 is raised, the distance from the reaper 9 to the entrance to the threshing unit 6 becomes shorter than when the reaper 9 is in the standard position, so that interference occurs between the front dust cover 23 and the rear dust cover 22. . Therefore, when the reaper 9 is raised, the rotation fulcrum Y also rises, the slide rod 25 and the arm 31 are stretched between the front dust cover 23 and the rear dust cover 22 and rotated at the rotation fulcrum XY. The rear dust cover 22 rotates about the rotation fulcrum Z 1. As a result, the rise of the rear dust cover 22 is suppressed to a minimum, the rear dust cover 22 and the discharge auger 16 do not interfere with each other while ensuring the B dimension, and the front dust cover 23 and the rear dust cover 22 do not interfere with each other. Does not interfere with the C dimension being secured. Then, the dust cover can be opened by sliding the rear dust cover 22 forward.

The rear dust cover when the reaper is lowered in FIG. 5 will be described. When the mowing unit 9 is lowered, the rear dust cover 22 also inclines downward and the distance from the mowing unit 9 to the entrance of the threshing unit 6 becomes longer than that when the mowing unit 9 is in the standard position. 25 extends, the rear dust cover 22 rotates about the rotation fulcrum Z, and the stopper rubber 24 does not come into contact with the upper surface of the front dust cover 23 to create a gap and prevent scratches. The dustproof function of the dust cover is maintained. Also at this time, the dust cover can be opened by sliding the rear dust cover 22 forward.

A method of fixing the rear dust cover to the combine will be described with reference to FIGS. 8 and 9. In the above structure, the rear dust cover 22 when opened is fixed by locking the spring hook 28 of the rear end portion 22c to the fixing bracket 33 protruding from the cutting sub-panel 32. However, as shown in FIGS. 8 and 9, a lock mechanism 34 is provided at the tip portion 30a of the support frame 30, and when the rear dust cover 22 is opened, the lock metal fitting 34a is securely fixed so that the arm 31 does not rotate, and the combine mechanism The rear dust cover 22 can be configured so that the rear dust cover 22 does not move and the dust cover does not close even if a shock occurs when the vehicle goes over the ridge, starts, or stops.

[0017]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. That is, the dust cover provided between the mowing section and the threshing section entrance is divided into parts, and is provided at the rotation fulcrum of the arm provided inside the middle part of the rear dust cover and at the front end of the support frame above the mowing section. The rotation fulcrum of the slide rod is slidably connected by inserting the rod part of the slide rod into the inside of the arm, and the rear part can be attached and removed.Therefore, when raising and lowering the reaping part of the combine, The front and rear dust covers can be moved without interference when opening and closing the dust cover, and it is also sufficient to open the rear dust cover for manual operation. The open space can be secured, the raising and lowering of the mowing section can be performed without any hindrance, and the operator can reliably keep the operator from the dust discharged during the mowing work of the small combine by closing the rear dust cover. You will be able to protect.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a side view showing a state in which the dust cover of the present invention is attached.

FIG. 3 is a side view of the present invention with the dust cover open.

FIG. 4 is a side view of the dust cover of the present invention with the reaper being raised.

FIG. 5 is a side view of the dust cover of the present invention in a state in which the cutting unit is lowered.

FIG. 6 is a locus diagram when the dust cover of the present invention is closed.

FIG. 7 is a locus diagram when the dust cover of the present invention is opened.

FIG. 8 is a front view showing another method of fixing the rear dust cover.

FIG. 9 is a side view of the same.

[Explanation of symbols]

 X Rotation fulcrum of slide rod Y Arm fulcrum of rotation Z Rotation fulcrum of spring hook 22 Rear dust cover 25 Slide rod 28 Spring hook 31 Arm

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshikazu Kamayama 1-32, Chayacho, Kita-ku, Osaka City, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Atsushi Terajima 1-chayacho, Kita-ku, Osaka City, Osaka Prefecture No. 32 Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A dust cover consisting of a front dust cover and a rear dust cover is provided above a space between the mowing section and the threshing section entrance of the combine, and a dust cover consisting of a rear dust cover and a rear dust cover is provided, and a rear dust cover midway. The rotation fulcrum X of the slide rod is provided in the horizontal axis direction inside the part, and the rotation fulcrum Y of the arm is provided in the horizontal axis direction of the tip of the support frame extending above the reaper, and the rotation fulcrum X is rotated. An engaging portion that is rotatable around a pivoting fulcrum Z provided near the entrance of the threshing portion with the rear end portion of the rear dust cover inserted between the fulcrums Y to connect the rod portion of the slide rod inside the arm. Combined dust cover that is detachably connected to.