JPH0722627U - Cutter in combine - Google Patents

Abstract

(57) [Abstract] [Purpose] When the combine cutter is open, the front surface of the rotary blade is covered with a cover to improve safety. [Structure] A cover 55 is vertically rotatably connected to a tip end portion of a switching plate 53 for switching the opening / closing position above a rotary blade 47 of a cutter 7 which is openably / closably attached to the rear of the combine 1 body. At the same time, the operation lever 56 is fixed to the base end portion of the cover 55, and the cover 55 moves up and down with the tip of the switching plate 53 as the center of rotation based on the rotation operation of the operation lever 56. So that the rotary blade 47 is rotated.
Cover the front of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutter that is openably and closably attached to the rear of a combine body, and more particularly to a cover that covers the rotary blade of the combiner from the front side when the combiner cutter is open.

[0002]

[Prior art]

 Conventionally, when the cutter is opened rearward for maintenance of the combine, etc., if the switching plate above the rotary blade of the cutter is switched to the closed position for conveying waste, the upper side of the rotary blade is switched. It could be covered with a board.

[0003]

[Problems to be solved by the device]

 However, the upper part of the rotary blade could be covered with a switching plate, but since there is no cover etc. that covers the front surface of the rotary blade, the operator does work such as maintenance between the rear part of the machine and the front surface of the cutter. When doing this, it was necessary to take care not to inadvertently contact the exposed saw-toothed rotary blade of the cutter to cause injury.

Therefore, the present invention is designed to prevent the operator from directly touching the rotary blade when the cutter mounted on the rear side of the combine is opened to the rear or during maintenance work or the like. By providing a cover that covers the front of the rotary blade, the operator improves safety so that the operator can perform maintenance and other work without directly touching the rotary blade, and provides a combine that solves the above problems. The purpose is to do.

[0005]

[Means for Solving the Problems]

 The present invention has been made in view of the above circumstances, and includes a rotary blade (45, 47) for cutting waste and an open position for supplying waste at the upper part of the rotary blade (45, 47). In a combine (1) in which a cutter (7) having a switching plate (53) for switching to a closed position for transporting waste straw is openably and closably attached to the rear of the machine body, a front end of the switching plate (53) is provided. A cover member (55) rotatably connected to the upper and lower portions of the cover member; and an operation member (56) for rotating the cover member (55) in the vertical direction, and the cutter (7) is opened. When the switching plate (53) is in the closed position, the cover member (55) covers the front surface of the rotary blade (45, 47) based on the operation of the operation member (56). It is characterized by

[0006]

[Action]

 Based on the above configuration, when the cutter (7) is opened rearward due to maintenance and the like when the engine of the combine (1) is stopped, the switching plate (53) in the closed position causes the rotary blade (45, When the upper part of 47) is covered, the operator operates the operating member (56) to rotate the cover member (55) connected to the front end of the switching plate (53) downward to hang down. To cover the front surface of the rotary blades (45, 47) of the cutter (7).

The reference numerals in parentheses are for reference to the drawings, but do not limit the present invention in any way.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 3, the combine 1 has a machine body 3 supported by a crawler 2, and the machine body 3 includes a driving operation section 5 and a threshing section 6 and the like. A cutter 7 is supported at the trailing end portion of the threshing unit 6 so as to be rotatable in the horizontal direction by a spindle on one side of the rear part of the combine 1 of the fuselage. A driver's seat 9 and the like are arranged in the driving operation unit 5, and a hopper 10, a switching lever 11 and the like are arranged on one side of the threshing unit 6, and the switching lever 11 is It is swingable in the front-rear direction about a pivot P (see FIG. 5). Further, a No. 2 spiral 12, a suction fan 13 and the like are arranged in the rear portion of the machine body 3, and a dust discharge port 14 is opened in the rear side plate of the machine body in the suction fan 13. A V-belt 15 is wound around the pulley 12 a fixed to the second spiral 12 and the pulley 13 a fixed to the suction fan 13. In addition, a threshing chain 16 is extended from the threshing machine toward the cutter 7 above the threshing section 6. The threshing unit 6 has a top plate 17, left and right side plates 19 and 20, a rear side plate 21, and the like, and a rear cover 22 is supported at the rear end of the top plate 17 so as to be vertically rotatable. ing. Further, a lock device 25 including a stopper 25a and a lever 25b is arranged on the support portion 23 adjacent to the side plate 19. Furthermore, an upper support tool 27 is fixed to the support frame 26 fixed to the machine body 3 and the side plate of the hopper 10, and a boss portion 27a is fixed to the upper support tool 27. . A lower support 29 is fixed to the rear end of the machine body 3, and a boss 29a is fixed to the lower support 29.

On the other hand, the cutter 7 has a cutter frame 35 composed of upper and lower support members 30, 31 and left and right side plates 32, 33, and one side of the right side plate 33 is as shown in FIG. The support 36 is fixed. Both ends of the support 36 are bent pieces 36a, 36b, and holes are formed in the bent pieces 36a, 36b. A support shaft 37 is inserted through the holes of the bending pieces 36a and 36b and the boss portion 27a, and as shown in FIG. The other end of 9 is rotatably fitted and supported in the hole of the boss portion 29a of the lower support 29, and the main body of the cutter 7 is horizontally located around the support shaft 37 on one side of the combine 1 at the rear of the machine body. It is freely rotatable. A hook 40 is supported on the left side plate 32 so as to be vertically rotatable about a support shaft. The hook 40 is engageable with the lock device 25, and the lock device 25 can be released. This allows the cutter 7 to rotate rearward of the machine body. A shaft 42 and a shaft 43 are rotatably supported on the left and right side plates 32 and 33, and a large number of disk-shaped rotary blades 45 having saw blades are attached to the shaft 42, and one end portion of the rotary blades 45 is attached. The gear 46 and the pulley 50 are fixed. On the other hand, a large number of disk-shaped rotary blades 47 having star wheel blades are attached to the shaft 43, and a gear 49 is fixedly attached to one end of the shaft 43. The gear 46 and the gear 49 are meshed with each other, and a V-belt is wound around the pulley 51 and the pulley 50.

As shown in FIG. 5, a switching plate support shaft 52 is rotatably supported at the upper rear ends of the left and right side plates 32 and 33, and the switching plate 53 is attached to the support shaft 52. Is fixed, and an arm 55 is fixed to the shaft end of the support shaft 52. A cover 55 is rotatably supported by a hinge 56 (see FIG. 6) at the front end of the switching plate 53 so as to be vertically rotatable. The operation levers 56, 56 are fixed, and the covers 55, 55 are rotated in the vertical direction based on the rotation operation of the operation levers 56, 56. A locking member 57 is fixed to one side of the right side plate 33, and a plate 59 is rotatably supported at a substantially central portion with a support shaft 60 as a rotation center. One end of the wire 61a is engaged with the pin 55a at the free end of the arm 55 and is fixed to the upper end of the plate 59 at a predetermined position from the end, while the other end of the wire 61a is fixed. The end is fixed to the locking portion 11a of the switching lever 11. Further, one end of the wire 61b is engaged with one end of the return spring 62 locked by the locking member 57, and fixed from the end to the lower end of the plate 59 at a predetermined position. ing. Then, when the switching lever 11 is pulled in the arrow direction A, the switching plate 53 and the cover 55 connected to the switching plate 53 are rotated upward via the wire 61a. When the switching plate 53 is rotated upward, that is, when the switching plate 53 is in an open position for supplying the waste, the waste straw conveyed by the waste straw chain 16 is supplied to the cutter 7, and the switching plate 13 is also supplied. It is configured so that it can be switched to directly discharge the waste at the closed position where the waste is transported. In addition, 63 is a lower cover.

Since the present embodiment is configured as described above, when performing work such as maintenance, the engine of the combine 1 is stopped, the switching lever 11 is tilted, and the switching plate 53 is in the closed position. Then, the lock device 25 is released, and the cutter 7 is rotated backward with the support shaft 37 as the rotation fulcrum. Then, by rotating the operating levers 56, 56 downward, the covers 55, 55 are rotated downward and hang down on the front surface of the rotary blade 45 (see FIG. 6). As a result, the operator's body does not directly touch the rotary blade 47 during maintenance work or the like, and safe work can be performed.

When it is not necessary to cover the front part of the rotary blade 47, the operation levers 56, 56 are rotated upward to move the covers 55, 55 above the switching plate 53. Next, a method of discharging the cut straw cut by the cutter 7 will be described. Conventionally, the cut straw cut by the rotary blades 45 and 47 of the cutter 7 of the combine 1 has been spread on the field through the lower cover 69 of the cutter 7, however, the cut straw is used in the field. And the stumps between the stumps were dispersed and scattered, so when planting seedlings between the stumps in a no-till field where grain stalks were cut, a grooving for seedling planting of a no-till field rice transplanter was performed. The cutting performance of the rice transplanter was reduced by catching the straw spread on the cutter in the field.

In the present embodiment, as shown in FIGS. 7 and 8, the cut straws cut by the cutter 7 of the combine 1 are gathered and spread on each of the stumps so that the distance between the stumps is increased. Make sure that the cut straw does not scatter at the planting site. As shown in FIG. 7 and FIG. 8, a cut straw discharging shutter 70 is attached below the rotary blades 45 and 47 of the cutter 7 of the combine 1, and the lower portion of the shutter 70 is narrower than the upper portion. It is composed of four side surfaces 71, and both side portions of these side surfaces 71 are joined. The lower part of the discharge of the shooter 70 is located above the 72 stumps in the field.

Since the present embodiment has the above-mentioned configuration, the harvested grain culm is threshed by the automatic threshing machine by the harvesting work of the combine 1, and the waste is removed to the cutter 7 by the waste chain. It is supplied and finely cut by the rotary blades 45 and 47 of the cutter 7. Then, the cut straws 73 cut by the rotary blades 45 and 47 of the cutter 7 pass through the shooter 70 and are sown along the 72 stumps of the field, and cut into the seedling planting site T between the 72 stumps. Since the seeds are not sprinkled, when planting seedlings in a no-tillage field, there is no possibility that the cutting straw 73 will be caught by the groove cutting cutter for seedling planting of the rice planting machine, and the planting performance of the rice planting machine will be reduced. Absent.

Further, FIGS. 9, 10A and 10B will be described.

In the above description, there is a gap between the lower end of the shooter 70 of the combine 1 and the stump 72 in the field, and there is a possibility that the cut straw may be dispersed under the influence of the wind. Therefore, in order to reduce the effect of wind and ensure that the stubble 73 is scattered on and near the stump 72, a discharge port 75 for restricting the discharge of the shavings is attached to the lower end of the shooter 70. The discharge port 75 has four side surfaces 75a, 75b, 75c, 75d formed of a flexible material such as rubber, and a semi-circular cutout 76 is formed in the lower portion of the front and rear side surfaces 75a, 75c. The notches 76 of the front and rear side surfaces 75a and 75c straddle the stump 72, and the left and right side surfaces 5b and 75d cover the stump 72 from both sides.

Since the present embodiment is configured as described above, the harvested grain culm is threshed by the automatic threshing machine by the harvesting work of the combine 1, and the waste is removed by the waste chain to the cutter 7. It is supplied and finely cut by the rotary blades 45 and 47 of the cutter 7. Then, the cut straw 73 passes through the shooter 70, and from the discharge port 75, the wind is blocked by the side surfaces 75a, 75b, 75c, 75d of the discharge port 75 at a position near the field scene, and the stump 72 is centered. It is sprinkled over the specified range and prevents the cutting straw 73 from scattering under the influence of wind, and the cutting straw 73 does not disperse in the seedling planting site T between the 72 stumps. Even when seedlings are planted in the field, the cutting straw 73 for catching the seedlings of the rice transplanter is not caught, and the planting performance of the rice transplanter is not deteriorated.

Further, since the discharge port 75 is formed of a flexible member such as rubber, the discharge port 75 will not be damaged even if it comes into contact with the stump 72.

[0020]

[Effect of device]

 As described above, according to the present invention, when the combiner cutter is opened rearward and the switching plate is in the closed position and covers the upper part of the rotary blade, a simple rotation operation of the operation member is performed. As a result, the cover member is rotated downward to cover the front surface of the rotary blade, so that the operator can perform work without directly touching the rotary blade during maintenance work, etc., and improve the safety. became.

Further, when it is not necessary to cover the front surface of the rotary blade, the operation lever can be pivoted upward to pivot the cover member upward so that the cover member can be moved onto the switching plate, thus reducing maintainability. I won't let you.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a combiner cutter to which the present invention is applied, as viewed from the side.

FIG. 2 is a plan view showing a combine cutter.

FIG. 3 is a cross-sectional view showing a cutter as viewed from the rear.

FIG. 4 is a perspective view showing a state in which a cover is attached to the switching plate with the cutter open.

FIG. 5 is a schematic sectional view showing a switching plate and a cover of the cutter.

FIG. 6 is an operation explanatory view showing a case where the safety cover is used with the cutter opened.

FIG. 7 is a schematic cross-sectional view of a shooter provided below the cutter as viewed from the side.

FIG. 8 is a schematic cross-sectional view showing a shooter provided below the cutter as viewed from the rear.

FIG. 9 is a schematic cross-sectional view showing a discharge port attached to a shooter as seen from a side surface.

FIG. 10 (a) is a schematic cross-sectional view showing a discharge port attached to a shooter as viewed from the rear. (B) A perspective view showing a discharge port.

[Explanation of symbols]

 1 Combine 7 Cutter 45 Rotating Blade 47 Rotating Blade 53 Switching Plate 55 Cover Member 56 Operation Member

Claims (1)

[Scope of utility model registration request] 1. A cutter having a rotary blade for cutting waste straw and a switch plate for switching between an open position for supplying waste straw and a closed position for transporting waste straw above the rotary blade is provided at the rear of the machine body. In a combine that is openably and closably mounted, a cover member that is connected to a front end of the switching plate so as to be rotatable in the vertical direction, and an operation member that rotates the cover member in the vertical direction, When the switching plate is in the closed position when the cutter is opened, the front surface of the rotary blade is covered with the cover member based on the operation of the operation member.