Combine

Abstract

To provide a combine-harvester capable of securing a large work space in a front side of a conveyance device of a reaper, preventing a worker from accidentally hitting his / her head on a raising device during removal work of grain culms clogged in the conveyance device, and preventing soil of a field from sticking to a sliding part, etc. of the raising device.SOLUTION: A combine-harvester includes, on a reaping frame (10) of a reaper (3), a grass-dividing body (16) for dividing grain culms, a raising device (17 or 70) for raising the divided grain culms, a reaping blade device (18) for cutting roots of the raised grain culms, and a conveying device (19) clamping the cut grain culms and conveying them to a thresher (4). The raising device (17 or 70) includes a first hook (87) on an upper part of a back surface thereof, and a pair of second hooks (88) provided at a prescribed interval apart in a vertical direction on a part shifted to one side in a horizontal direction in a vertically intermediate part of the back surface of the raising device (17 or 70).SELECTED DRAWING: Figure 19

Description

Technical Field

[0001] The present invention relates to a combine harvester equipped with a plurality of lifting devices on a cutting device.

Background Art

[0002] When removing the straw clogged in the conveying device of the cutting device by connecting a transmission cylinder extending in the left - right direction arranged above the cutting device and a lifting device arranged in the middle in the left - right direction with a link formed by two arms, a technique of moving the link forward to pull out the lifting device forward was known. (See Patent Document 1)

[0003] Also, when removing the straw clogged in the conveying device of the cutting device by rotatably fixing a transmission cylinder extending in the left - right direction arranged above the cutting device and a lifting device arranged in the middle in the left - right direction to a support shaft extending in the up - down direction, a technique of rotating the lifting device around the support shaft was known. (See Patent Document 2)

[0004] Furthermore, when removing the straw clogged in the conveying device of the cutting device by rotatably fixing a transmission cylinder extending in the left - right direction arranged above the cutting device and a lifting device arranged in the middle in the left - right direction to a support shaft extending in the up - down direction, a technique of rotating one lifting device clockwise around the support shaft and rotating the other lifting device counterclockwise around the support shaft was known. (See Patent Document 3)

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, with the technologies disclosed in Patent Documents 1 to 3, it is not possible to secure a large working space in front of the conveying device of the cutting device. Therefore, there is a problem in that the working posture is restricted and it is difficult to easily remove the grain straws jammed in the conveying device.

[0007] Therefore, an object of the present invention is to secure a large working space in front of the conveying device of the cutting device, prevent an operator from accidentally hitting their head against the lifting device during the removal work of the grain straws jammed in the conveying device, and also suppress the adhesion of field soil to the sliding part etc. of the lifting device, and provide a combine harvester capable of achieving this.

Means for Solving the Problems

[0008] The present invention that solves the above problems is as follows. That is, in the combine harvester provided with a cutting device (3) on the front side of a machine body frame (1) equipped with an engine, a threshing device (4) on the rear left side of the cutting device (3), and a control unit (5) on the rear right side of the cutting device (3), On the cutting frame (10) of the cutting device (3), a weeding body (16) for weeding grain straws, a lifting device (17, 70) for lifting the weeded grain straws, a cutting blade device (18) for cutting the base of the lifted grain straws, and a conveying device (19) for sandwiching the cut grain straws and conveying them to the threshing device (4) are provided. A first hook (87) is provided at the upper part of the back surface of the lifting device (17, 70), and a pair of second hooks (88) are provided at a position offset to one side in the left - right direction at an intermediate part in the vertical direction of the back surface of the lifting device (17, 70) with a predetermined interval in the vertical direction. The first hook (87) is disposed above the drive sprocket (50) to which the output rotation of the engine is transmitted, and the second hook (88) is disposed on the side for raising the grain straw by raising the lifting lug (35) provided with the chain engaged with the drive sprocket (50). The weeding bodies (16) arranged on both sides of the cutting device (3) and the lifting guide (5A) of the control unit (5) ) to are formed with a fixture for locking the first hook (87) of the lifting device (17, 70) removed from the cutting device (3). The first hook (87) of the lifting device (17, 70) removed from the cutting device (3) can be locked to an opening / closing lever (4B) extending in the front-rear direction for opening and closing the threshing cover (4A) of the threshing device (4). The narrow guide (1A) extending in the front - rear direction provided on the left side of the machine body frame (1) to locks the second hook (88) of the lifting device (17, 70) removed from the cutting device (3). can be At the middle part of a transmission cylinder (15) extending in the left - right direction and arranged at the upper part of the cutting frame (10), at least one or more vertical transmission cylinders (41) extending downward from the middle part of the transmission cylinder (15) and left - right transmission cylinders (42) extending in the left - right direction from the lower part of the vertical transmission cylinders (41) are provided. At the middle part of a frame (23) extending in the left - right direction and connecting the middle part of a front - rear frame (22) supporting the weeding body (16), at least one or more stays (43) extending upward from the middle part of the frame (23) and left - right frames (44) extending in the left - right direction from the upper part of the stays (43) are provided. The upper part of a pulling device (17, 70) arranged at the left - right middle of the pulling device (17, 70) is detachably fixed to the left - right transmission cylinder (42), and the lower part is detachably fixed to the left - right frame (44). The combine is characterized by this.

[0009]

[0010]

[0011]

[0012] Claim 2 The invention described in the claim is the combine according to claim 1, wherein a sensor for detecting the first hook (87) is provided on the fastener, and when the sensor detects the first hook (87), the output rotation of the engine is not transmitted to the cutting device (3).

[0013] Claim 3 The invention described in the claim is the combine according to claim 1, wherein elastic members are provided on the inner circumferential parts of the first hook (87) and the second hook (88).

[0014]

[0015] Claim 4In the invention described, the right part on the side opposite to the starting of the starting device (17B) located second from the left side of the starting device (17) and the left part on the side opposite to the starting of the starting device (17C) located third from the left side of the starting device (17) are arranged to face each other. The upper part of the starting device (17B) is detachably fixed to the left part of the left - right transmission cylinder (42) by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left - right frame (44) by a left clamping part (48L). The upper part of the starting device (17C) is detachably fixed to the right part of the left - right transmission cylinder (42) by a right engaging part (47R), and the lower part is detachably fixed to the right part of the left - right frame (44) by a right clamping part (48R). The combine according to claim 1 is as described above.

[0016] Claim 5The invention described arranges the right part on the side opposite to the triggering side of the triggering device (70B) located second from the left side of the triggering device (70) to face the left part on the side opposite to the triggering side of the triggering device (70C) located third from the left side of the triggering device (70), arranges the right part on the side opposite to the triggering side of the triggering device (70D) located fourth from the left side of the triggering device (70) to face the left part on the side opposite to the triggering side of the triggering device (70E) located fifth from the left side of the triggering device (70), fixes the upper part of the triggering device (70B) to the left part of the left and right transmission cylinder (42) extending from the lower part of the left up and down transmission cylinder (41) with a left engaging part (47L), and fixes the lower part to the left part of the left and right frame (44) extending from the upper part of the left stay (43) with a left clamping part (48L) detachably, fixes the upper part of the triggering device (70C) to the right part of the left and right transmission cylinder (42) extending from the lower part of the left up and down transmission cylinder (41) with a right engaging part (47R), and fixes the lower part to the right part of the left and right frame (44) extending from the upper part of the left stay (43) with a right clamping part (48R) detachably, fixes the upper part of the triggering device (70D) to the left part of the left and right transmission cylinder (42) extending from the lower part of the right up and down transmission cylinder (41) with a left engaging part (47L), and fixes the lower part to the left part of the left and right frame (44) extending from the upper part of the right stay (43) with a left clamping part (48L) detachably, fixes the upper part of the triggering device (70E) to the right part of the left and right transmission cylinder (42) extending from the lower part of the right up and down transmission cylinder (41) with a right engaging part (47R), and fixes the lower part to the right part of the left and right frame (44) extending from the upper part of the right stay (43) with a right clamping part (48R) detachably, which is the combine according to claim 1.

[0017] Claim 6 The invention described forms the left engaging part (47L) with an engaging part (60) provided on the left and right transmission cylinder (42) and a first engaged part (61) erected on the rear surface of the triggering device (17B, 70B, 70B), forms the right engaging part (47R) with an engaging part (60) provided on the left and right transmission cylinder (42) and a first engaged part (61) erected on the rear surface of the triggering device (17C, 70C, 70E), and forms unevenness on the first engaged part (61), which is the combine according to claim 4 or 5 described.

[0018] Claim 7 The invention described in the claim forms the left clamping part (48L) with the upper clamping part (65) and the lower clamping part (66) provided at the lower part of the triggering device (17B, 70B, 70D), and forms the right clamping part (48R) with the upper clamping part (65) and the lower clamping part (66) provided at the lower part of the triggering device (17C, 70C, 70E). A pin (65B) extending in the left-right direction is provided on the upper clamping part (65), and the front part of the arc-shaped upper clamping main body part (65C) of the upper clamping part (65) is fixed to the pin (65B). The front part of the arc-shaped lower clamping main body part (66A) of the lower clamping part (66) is rotatably fixed to the pin (65B). A second engaged part (66B) is provided at the rear part of the lower clamping main body part (66A), and the rear part of the second engaged part (66B) is curved rearward and downward. The combine according to the claim 4 or 5 described.

[0019] Claim 8 The invention described in the claim laminates elastic members on the inner peripheral surfaces of the upper clamping main body part (65C) and the lower clamping main body part (66A). The combine according to the claim 7 described.

[0020] Claim 9 The invention described in the claim is the combine according to claim 1, which connects the left part of the left-right transmission cylinder (42) and the left-right frame (44) with a left upper-lower frame (45L) extending in the vertical direction, and connects the right part of the left-right transmission cylinder (42) and the left-right frame (44) with a right upper-lower frame (45R) extending in the vertical direction.

[0021] Claim 10 The invention described in the claim is the combine according to the claim, in which the left upper-lower frame (45L) and the right upper-lower frame (45R) are arranged parallel to the rear surface of the triggering device (17, 70) in a side view. 9 described.

Effect of the Invention

[0022] According to the invention described in claim 1, on the cutting frame (10) of the cutting device (3), there are provided a weeding body (16) for weeding cereal straws, a lifting device (17, 70) for lifting the weeded cereal straws, a cutting blade device (18) for cutting the roots of the lifted cereal straws, and a conveying device (19) for clamping the cut cereal straws and conveying them to the threshing device (4). A first hook (87) is provided at the upper part of the back of the lifting device (17, 70), and a pair of second hooks (88) are provided at a position offset to one side in the left - right direction at a predetermined interval in the vertical direction at the middle part in the vertical direction of the back of the lifting device (17, 70). The first hook (87) is disposed above the drive sprocket (50) to which the output rotation of the engine is transmitted, and the second hook (88) is disposed on the side for raising the grain straw by raising the lifting lug (35) provided with the chain engaged with the drive sprocket (50). The weeding bodies (16) arranged on both sides of the cutting device (3) and the lifting guide (5A) of the control unit (5) ) to A fixture is formed for locking the first hook (87) of the lifting device (17, 70) removed from the cutting device (3). The first hook (87) of the lifting device (17, 70) removed from the cutting device (3) can be locked to an opening / closing lever (4B) extending in the front-rear direction for opening and closing the threshing cover (4A) of the threshing device (4). The narrow guide (1A) extending in the front - rear direction provided on the left side of the machine body frame (1) to Lock the second hook (88) of the lifting device (17, 70) removed from the cutting device (3). can be At the middle part of the transmission cylinder (15) extending in the left - right direction arranged at the upper part of the cutting frame (10), at least one or more vertical transmission cylinders (41) extending downward from the middle part of the transmission cylinder (15) and left - right transmission cylinders (42) extending in the left - right direction from the lower part of the vertical transmission cylinders (41) are provided. At the middle part of the frame (23) extending in the left - right direction connecting the middle part of the front - rear frame (22) supporting the weeding body (16), at least one or more stays (43) extending upward from the middle part of the frame (23) and left - right frames (44) extending in the left - right direction from the upper part of the stays (43) are provided. The upper part of the lifting device (17, 70) arranged in the middle in the left - right direction of the lifting device (17, 70) is detachably fixed to the left - right transmission cylinder (42), and the lower part is detachably fixed to the left - right frame (44). Therefore, the lifting device (17, 70) removed from the cutting device (3) can be locked to the machine body via the first hook (87) and the second hook (88), ensuring a wide working space in front of the conveying device (19), and preventing the operator from accidentally hitting their head against the lifting device (17, 70). Also, it is possible to suppress the adhesion of the soil in the field to the sliding part of the lifting device (17, 70) and prevent malfunction. Furthermore, with the longitudinal direction of the starting device (17, 70) being the front-back direction, it can be easily locked to the narrow guide attached to the airframe, for example, the airframe frame (1) via the second hook (88). The starting device (17, 70) can be removed from the left and right transmission cylinders (42) and the left and right frames (44) to secure a larger working space in front of the conveying device (19), and the grain straw jammed in the conveying device (19) can be easily removed.

[0023] Pull With the longitudinal direction of the starting device (17, 70) being the vertical direction, it can be easily locked to the airframe, for example, the harvesting device (3), the threshing device (4), or the control unit (5) via the first hook (87).

[0024] Pull With the longitudinal direction of the starting device (17, 70) being the front-back direction, it can be easily locked to the narrow guide attached to the airframe, for example, the airframe frame (1) via the second hook (88).

[0025]

[0026] Claim 2 According to the invention described in the claims, in addition to the effects of the invention described in claim 1, the fastener is provided with a sensor for detecting the first hook (87). When the sensor detects the first hook (87), the output rotation of the engine is not transmitted to the harvesting device (3). Therefore, the operator can safely remove the grain straw jammed in the conveying device (19).

[0027] Claim 3 According to the invention described in the claims, in addition to the effects of the invention described in claim 1, elastic members are laminated on the inner circumferential portions of the first hook (87) and the second hook (88). Therefore, the starting device (17, 70) can be securely locked to the airframe via the first hook (87) and the second hook (88), and the noise during running can also be suppressed.

[0028]

[0029] Claim 4According to the described invention, in addition to the effects of the invention described in claim 1, the right part on the opposite side of the triggering device (17B) located second from the left side of the triggering device (17) and the left part on the opposite side of the triggering device (17C) located third from the left side of the triggering device (17) are arranged to face each other. The upper part of the triggering device (17B) is detachably fixed to the left part of the left - right transmission cylinder (42) by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left - right frame (44) by a left clamping part (48L). The upper part of the triggering device (17C) is detachably fixed to the right part of the left - right transmission cylinder (42) by a right engaging part (47R), and the lower part is detachably fixed to the right part of the left - right frame (44) by a right clamping part (48R). Therefore, by releasing the engagement of the left engaging part (47L), releasing the clamping of the left clamping part (48L), the triggering device (17B) can be more easily removed, and by releasing the engagement of the right engaging part (47R) and releasing the clamping of the right clamping part (48R), the triggering device (17C) can be more easily removed.

[0030] Claim 5According to the described invention, in addition to the effects of the invention described in claim 1, the right part on the opposite side of the triggering device (70B) located second from the left side of the triggering device (70) is arranged opposite to the left part on the opposite side of the triggering device (70C) located third from the left side of the triggering device (70), the right part on the opposite side of the triggering device (70D) located fourth from the left side of the triggering device (70) is arranged opposite to the left part on the opposite side of the triggering device (70E) located fifth from the left side of the triggering device (70). The upper part of the triggering device (70B) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the left up-down transmission cylinder (41) by a left engagement part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) extending from the upper part of the left stay (43) by a left clamping part (48L). The upper part of the triggering device (70C) is detachably fixed to the right part of the left-right transmission cylinder (42) extending from the lower part of the left up-down transmission cylinder (41) by a right engagement part (47R), and the lower part is detachably fixed to the right part of the left-right frame (44) extending from the upper part of the left stay (43) by a right clamping part (48R). The upper part of the triggering device (70D) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the right up-down transmission cylinder (41) by a left engagement part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) extending from the upper part of the right stay (43) by a left clamping part (48L). The upper part of the triggering device (70E) is detachably fixed to the right part of the left-right transmission cylinder (42) extending from the lower part of the right up-down transmission cylinder (41) by a right engagement part (47R), and the lower part is detachably fixed to the right part of the left-right frame (44) extending from the upper part of the right stay (43) by a right clamping part (48R). Therefore, by releasing the engagement of the left engagement part (47L) and releasing the clamping of the left clamping part (48L), the triggering devices (70B, 70D) can be more easily removed, and by releasing the engagement of the right engagement part (47R) and releasing the clamping of the right clamping part (48R), the triggering devices (70C, 70E) can be more easily removed.

[0031] Claim 6 According to the described invention, claim 4 or 5In addition to the effects of the described invention, the left engaging component (47L) is formed by an engaging portion (60) provided on the left and right transmission cylinder (42) and a first engaged portion (61) erected on the rear surface of the triggering device (17B, 70B, 70B), and the right engaging component (47R) is formed by an engaging portion (60) provided on the left and right transmission cylinder (42) and a first engaged portion (61) erected on the rear surface of the triggering device (17C, 70C, 70E). Since unevenness is formed on the first engaged portion (61), the engaging portion (60) can be firmly engaged with the first engaged portion (61), and the triggering device (17, 70) can be closely fixed to the left and right transmission cylinder (42).

[0032] Claim 7 According to the described invention, claim 4 or 5 In addition to the effects of the described invention, the left clamping component (48L) is formed by an upper clamping portion (65) and a lower clamping portion (66) provided at the lower part of the triggering device (17B, 70B, 70D), and the right clamping component (48R) is formed by an upper clamping portion (65) and a lower clamping portion (66) provided at the lower part of the triggering device (17C, 70C, 70E). A pin (65B) extending in the left and right direction is provided on the upper clamping portion (65). The front portion of the arc-shaped upper clamping main body portion (65C) of the upper clamping portion (65) is fixed to the pin (65B), and the front portion of the arc-shaped lower clamping main body portion (66A) of the lower clamping portion (66) is rotatably fixed to the pin (65B). A second engaged portion (66B) is provided at the rear portion of the lower clamping main body portion (66A), and the rear portion of the second engaged portion (66B) is curved rearward and downward. Therefore, the left and right frames (44) can be closely clamped by the upper clamping main body portion (65C) and the lower clamping main body portion (66A), and the lower part of the triggering device (17, 70) can be firmly fixed to the left and right frames (44).

[0033] Claim 8 According to the described invention, claim 7 In addition to the effects of the described invention, since an elastic member is laminated on the inner peripheral surfaces of the upper clamping main body portion (65C) and the lower clamping main body portion (66A), the left and right frames (44) can be more closely clamped by the upper clamping main body portion (65C) and the lower clamping main body portion (66A).

[0034] Claim 9According to the described invention, in addition to the effects of the invention described in claim 1, the left and right transmission cylinders (42) and the left part of the left and right frames (44) are connected by a left upper and lower frame (45L) extending in the vertical direction, and the right and left transmission cylinders (42) and the right part of the left and right frames (44) are connected by a right upper and lower frame (45R) extending in the vertical direction. Therefore, the rigidity of the left and right transmission cylinders (42) and the left and right frames (44) is increased, and when the lifting device (17, 70) is removed from the left and right transmission cylinders (42) and the left and right frames (44), deformation occurring in the left and right transmission cylinders (42) and the left and right frames (44) can be suppressed.

[0035] Claim 10 According to the described invention, in addition to the effects of the invention described in claim 9 In addition to the effects of the described invention, in a side view, since the left upper and lower frame (45L) and the right upper and lower frame (45R) are arranged parallel to the rear surface of the lifting device (17, 70), the rigidity of the left and right transmission cylinders (42) and the left and right frames (44) can be further increased.

Brief Description of the Drawings

[0036]

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Embodiments for Carrying out the Invention

[0037] As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 consisting of a pair of left and right crawlers that travel on the soil surface below the body frame 1, a mowing device 3 for mowing the cereal straw in the field is provided in front of the body frame 1, a threshing device 4 for threshing and sorting the cut cereal straw is provided on the left rear side of the mowing device 3, and a control unit 5 on which an operator boards is provided on the right rear side of the mowing device 3.

[0038] Below the control unit 5, an engine room 6 for mounting the engine is provided. Behind the control unit 5, a grain tank 7 for storing the threshed and sorted grains is provided. Behind the grain tank 7, a discharge auger 8 consisting of a vertical threshing part extending in the vertical direction for discharging the grains to the outside and a horizontal discharge part extending in the front-rear direction is provided.

[0039] The cutting frame 10 of the cutting device 3 is formed by a transmission cylinder 11 extending in the left-right direction to which the output rotation of the engine is transmitted, a transmission cylinder 12 extending from the right part of the transmission cylinder 11 toward the front side, a transmission cylinder 13 extending in the left-right direction from the lower part of the transmission cylinder 12, a transmission cylinder 14 extending from the left part of the transmission cylinder 13 toward the upper side, and a transmission cylinder 15 extending in the left-right direction from the upper part of the transmission cylinder 14.

[0040] The cutting frame 10 is equipped with a weeding body 16 for weeding the cereal straws planted in the field, a lifting device 17 for lifting the weeded cereal straws, a cutting blade device 18 for cutting the base of the lifted cereal straws, and a conveying device 19 for clamping the cut cereal straws and conveying them to the threshing device 4.

[0041] As shown in FIGS. 3 and 4, the right part of the transmission cylinder 11 and the middle part of the transmission cylinder 15 are connected by a connecting member 20 made of round steel, and the right part of the transmission cylinder 15 and the right part of the transmission cylinder 13 are connected by a connecting member 21 made of round steel. Thus, the left part of the transmission cylinder 15 is supported by the transmission cylinder 14, the middle part of the transmission cylinder 15 is supported by the connecting member 20, and the right part of the transmission cylinder 15 is supported by the connecting member 21, so that deformation such as deflection and torsion of the transmission cylinder 15 can be suppressed.

[0042] The connecting member 20 extends from the right part of the transmission cylinder 11 toward the upper front side so as to exceed the upper side of the conveying device 19, then extends toward the front side, and then extends toward the lower front side to reach the transmission cylinder 15. Further, the connecting member 21 extends from the right part of the transmission cylinder 13 toward the upper front side so as to exceed the upper side of the conveying device 19, then extends toward the upper side, and then extends toward the upper front side to reach the transmission cylinder 15.

[0043] As shown in Fig. 5, the weed separating body 16 is formed by five weed separating bodies 16A to 16E. The weed separating bodies 16A to 16E extend forward from the transmission cylinder 13 and are fixed to the front part of the front and rear frame 22 provided at a predetermined interval in the left - right direction. Further, they are connected by a frame 23 formed of a round pipe connecting the middle parts of the front and rear frame 22 provided on the leftmost side and the front and rear frame 22 provided on the rightmost side.

[0044] The lifting device 17 is formed by four lifting devices 17A to 17D. The right part on the side opposite to the lifting side of the lifting device 17B and the left part on the side opposite to the lifting side of the lifting device 17C are arranged opposite to each other. Thus, a total of four grain straws, two between the lifting devices 17A and 17B and two between the lifting devices 17C and 17D, can be lifted simultaneously.

[0045] As shown in Figs. 6 to 8, the support shaft (not shown) for supporting the drive sprocket provided on the upper part of the lifting device 17A is connected to the rotary shaft 31L of the vertical transmission cylinder 30L extending downward from the left part of the transmission cylinder 15. The lower part of the lifting device 17A is fixed to a rectangular connecting member 33L provided on a stay 32L that curves upward and to the right from the left part of the frame 23. Thus, the output rotation of the engine transmitted to the rotary shaft installed inside the transmission cylinder 15 can be transmitted to the drive sprocket of the lifting device 17A via the rotary shaft installed inside the vertical transmission cylinder 30L to rotate the lifting chain. Further, a cover 25 is provided on the front side of the transmission cylinder 15.

[0046] The support shaft (not shown) for supporting the drive sprocket provided on the upper part of the lifting device 17D is connected to the rotary shaft 31R of the vertical transmission cylinder 30R extending downward from the right part of the transmission cylinder 15. The lower part of the lifting device 17D is fixed to a rectangular connecting member 33R provided on a stay 32R that curves upward and to the left from the right part of the frame 23. Thus, the output rotation of the engine transmitted to the rotary shaft installed inside the transmission cylinder 15 can be transmitted to the drive sprocket of the lifting device 17D via the rotary shaft installed inside the vertical transmission cylinder 30R to rotate the lifting chain.

[0047] At the middle part of the transmission cylinder 15 in the left - right direction, an up - down transmission cylinder 41 extending downward from the middle part is provided. At the lower part of the up - down transmission cylinder 41, a left - right transmission cylinder 42 extending in the left - right direction is provided. Also, at the middle part of the frame 23, a stay 43 extending upward from the middle part is provided. At the upper part of the stay 43, a left - right frame 44 formed from a round pipe and extending in the left - right direction is provided.

[0048] Regulating members 44L and 44R made of washers or the like are provided on both sides of the left - right frame 44. Thereby, it is possible to prevent the left clamping part 48L and the right clamping part 48R, which will be described later, from coming off the left - right frame 44 in the left - right direction.

[0049] The left part of the left - right transmission cylinder 42 and the left - right frame 44 is connected by a left - right up - down frame 45L, and the right part of the left - right transmission cylinder 42 and the left - right frame 44 is connected by a right - left up - down frame 45R. Thereby, the rigidity of the left - right transmission cylinder 42 and the left - right frame 44 can be increased, and even when the lifting devices 17B and 17C are removed, deformation of the left - right transmission cylinder 42 and the left - right frame 44 can be suppressed. In a rear view, the up - down transmission cylinder 41, the left - right transmission cylinder 42, the stay 43, the left - right frame 44, the left - right up - down frame 45L, and the right - left up - down frame 45R are arranged inside the outer peripheral part of the lifting devices 17B and 17C.

[0050] The rotating shaft 51 that supports the drive sprocket 50 provided at the upper part of the lifting device 17B is connected to the rotating shaft 46L of the left - right transmission cylinder 42. The part of the upper part of the lifting device 17B close to the part facing the rotating shaft 46L is fixed to the left part of the left - right transmission cylinder 42 via a left engaging part 47L such as a snap lock. The lower part of the lifting device 17B is fixed to the left part of the left - right frame 44 via a left clamping part 48L such as a snap lock. Thereby, the output rotation of the engine transmitted to the rotating shaft installed inside the transmission cylinder 15 can be transmitted to the drive sprocket 50 of the lifting device 17B via the rotating shafts installed inside the up - down transmission cylinder 41 and the left - right transmission cylinder 42, and the lifting chain can be rotated.

[0051] The rotating shaft (not shown) that supports the drive sprocket (not shown) provided at the upper part of the starting device 17C is connected to the rotating shaft 46R of the left and right transmission cylinders 42. The part of the upper part of the starting device 17C that is close to the part facing the rotating shaft 46R is fixed to the right part of the left and right transmission cylinders 42 via a right engaging part 47R such as a snap lock. The lower part of the starting device 17C is fixed to the right part of the left and right frames 44 via a right clamping part 48R such as a snap lock. Thereby, the output rotation of the engine transmitted to the rotating shaft installed inside the transmission cylinder 15 is transmitted to the drive sprocket of the starting device 17C via the rotating shafts installed inside the upper and lower transmission cylinders 41 and the left and right transmission cylinders 42, and the starting chain can be rotated.

[0052] On the upper part of the left upper and lower frame 45L, a support member 49L that supports an oil injection nozzle for injecting oil into the starting chain (not shown) of the starting device 17B is provided. On the upper part of the right upper and lower frame 45R, a support member 49L that supports an oil injection nozzle for injecting oil into the starting chain (not shown) of the starting device 17C is provided. Note that starting lugs 35 are attached to the starting chain at predetermined intervals.

[0053] As shown in FIG. 9, the lower part of the suspension frame 24 extending forward and downward from the engaging member 52 provided at the front part of the upper and lower transmission cylinder 41 is rotatably supported by a pin 53 extending in the left and right direction provided at the rear part of the weeding body 16C. Thereby, as shown in FIG. 10, by releasing the engagement between the upper part of the suspension frame 24 and the engaging member 52 and pulling out the upper part of the suspension frame 24 forward around the axis of the pin 53, the starting device 17B and the starting device 17C can be easily attached and detached.

[0054] As shown in FIG. 9, the upper part on the rear surface of the starting device 17B, that is, the part below the drive sprocket 50, is fixed to the left part of the left and right transmission cylinders 42 via a left engaging part 47L. The lower part on the rear surface of the starting device 17B is fixed to the left part of the left and right frames 44 via a left clamping part 48L.

[0055] When removing the lifting device 17B from the left and right transmission cylinders 42 or the like, first, as shown in FIG. 11, disconnect the connection between the rotating shaft 51 of the lifting device 17B and the rotating shaft 46L of the left and right transmission cylinders 42, release the engagement between the upper part of the rear surface of the lifting device 17B and the left engaging part 47L, and pull out the upper part of the lifting device 17B forward around the axis of the left and right frames 44. Next, as shown in FIG. 12, release the engagement between the lower part of the lifting device 17B and the left clamping part 48L, and remove the lower part of the lifting device 17B from the left part of the left and right frames 44. Thereby, the lifting device 17B can be removed from the left and right transmission cylinders 42 or the like, and the grain straws entangled with the conveying device 19 arranged on the rear side of the lifting device 17B can be easily removed.

[0056] The left upper and lower frame 45L is provided in parallel with the rear surface of the lifting device 17B. Thereby, the rigidity of the left and right transmission cylinders 42 and the left part of the left and right frames 44 can be further enhanced.

[0057] Similarly, the upper part on the rear surface of the lifting device 17C, that is, the part below the drive sprocket (not shown), is fixed to the right part of the left and right transmission cylinders 42 via the right engaging part 47R, and the lower part on the rear surface of the lifting device 17C is fixed to the right part of the left and right frames 44 via the left clamping part 48L.

[0058] When removing the lifting device 17C from the left and right transmission cylinders 42 or the like, similar to the lifting device 17B, disconnect the connection between the rotating shaft (not shown) of the lifting device 17C and the rotating shaft 46R of the left and right transmission cylinders 42, release the engagement between the upper part of the rear surface of the lifting device 17C and the right engaging part 47R, and pull out the upper part of the lifting device 17C forward around the axis of the left and right frames 44. Next, release the engagement between the lower part of the lifting device 17C and the right clamping part 48R, and remove the lower part of the lifting device 17C from the right part of the left and right frames 44. Thereby, the lifting device 17C can be removed from the left and right transmission cylinders 42 or the like, and the grain straws entangled with the conveying device 19 arranged on the rear side of the lifting device 17C can be easily removed.

[0059] The right upper and lower frame 45R is provided in parallel with the rear surface of the lifting device 17C. Thereby, the rigidity of the left and right transmission cylinders 42 and the right part of the left and right frames 44 can be further enhanced.

[0060] As shown in FIGS. 13 and 14, the left engaging component 47L is formed by an engaging portion 60 provided on the left part of the left - right transmission cylinder 42 and an engaged portion (the "first engaged portion" in the claims) 61 provided on the rear surface of the lifting device 17B. The engaging portion 60 is formed by a mounting plate 60A, a pin 60B extending in the vertical direction provided on the mounting plate 60A, a lever 60C rotatably mounted on the pin 60B, and a hook 60D provided on the lever 60C. Note that the engaged portion 61 extends rearward from the rear surface of the lifting device 17B, and concavities and convexities with which the hook 60D engages are formed on the right part of the engaged portion 61. Thereby, the upper part of the lifting device 17B can be easily fixed to the left part of the left - right transmission cylinder 42 or removed from the left part of the left - right transmission cylinder 42.

[0061] Similarly, the right engaging component 47R is formed by an engaging portion 60 provided on the right part of the left - right transmission cylinder 42 and an engaged portion 61 provided on the rear surface of the lifting device 17C. The engaging portion 60 is formed by a mounting plate 60A, a pin 60B extending in the vertical direction provided on the mounting plate 60A, a lever 60C rotatably mounted on the pin 60B, and a hook 60D provided on the lever 60C. Note that the engaged portion 61 extends rearward from the rear surface of the lifting device 17C, and concavities and convexities with which the hook 60D engages are formed on the left part of the engaged portion 61. Thereby, the upper part of the lifting device 17C can be easily fixed to the right part of the left - right transmission cylinder 42 or removed from the right part of the left - right transmission cylinder 42.

[0062] As shown in FIGS. 15 and 16, the left clamping component 48L is formed by an upper clamping portion 65 provided at the lower part of the rear surface of the lifting device 17B and a lower clamping portion 66 provided below the upper clamping portion 65.

[0063] The upper clamping part 65 is formed by a mounting plate 65A, a pin 65B extending in the left - right direction provided at the lower part of the mounting plate 65A, a substantially arc - shaped upper clamping body part 65C supported by the pin 65B, a pin 65D extending in the left - right direction provided at the upper part of the mounting plate 65A, a lever 65E rotatably mounted on the pin 65D, and a hook 65F provided on the lever 65E. Further, it is preferable to laminate an elastic member such as rubber on the inner peripheral surface of the upper clamping body part 65C. Also, the lower clamping part 66 is formed by a substantially arc - shaped lower clamping body part 66A rotatably supported by the pin 65B and an engaged part (the "second engaged part" in the claims) 66B provided at the rear end of the lower clamping body part 66A, and the rear part of the engaged part 66B is curved downward to the rear. Thereby, the lower part of the lifting device 17B can be easily fixed to the left part of the left - right frame 44 or removed from the left part of the left - right frame 44. Also, it is preferable to laminate an elastic member such as rubber on the inner peripheral surface of the lower clamping body part 66A, and the lower clamping body part 66A can also be made of a high - hardness elastic member.

[0064] Similarly, the right clamping component 48R is formed by an upper clamping part 65 provided at the lower part of the rear surface of the lifting device 17C and a lower clamping part 66 provided below the upper clamping part 65.

[0065] The upper clamping part 65 is formed by a mounting plate 65A, a pin 65B extending in the left - right direction provided at the lower part of the mounting plate 65A, a substantially arc - shaped upper clamping body part 65C supported by the pin 65B, a pin 65D extending in the left - right direction provided at the upper part of the mounting plate 65A, a lever 65E rotatably mounted on the pin 65D, and a hook 65F provided on the lever 65E. Further, it is preferable to laminate an elastic member such as rubber on the inner peripheral surface of the upper clamping body part 65C. Also, the lower clamping part 66 is formed by a substantially arc - shaped lower clamping body part 66A rotatably supported by the pin 65B and an engaged part 66B provided at the rear end of the lower clamping body part 66A, and the rear part of the engaged part 66B is curved downward to the rear. Thereby, the lower part of the lifting device 17C can be easily fixed to the right part of the left - right frame 44 or removed from the left part of the left - right frame 44. Also, it is preferable to laminate an elastic member such as rubber on the inner peripheral surface of the lower clamping body part 66A, and the lower clamping body part 66A can also be made of a high - hardness elastic member.

[0066] Figs. 17 and 18 illustrate other combines for six - row cutting. The same parts as those of the four - row cutting combine described above are denoted by the same reference numerals and the description thereof is omitted.

[0067] The lifting device 70 of the cutting device 3 is formed by six lifting devices 70A - 70F. The right part on the side opposite to the lifting side of the lifting device 70B and the left part on the side opposite to the lifting side of the lifting device 70C are arranged to face each other, and the right part on the side opposite to the lifting side of the lifting device 70D and the left part on the side opposite to the lifting side of the lifting device 70E are arranged to face each other. Thereby, a total of six rows of cereal straws can be simultaneously lifted between the lifting devices 70A and 70B, between the lifting devices 70C and 70D, and between the lifting devices 70E and 70F, with two rows in each interval. Also, the operating part 5 is covered by a cabin 9.

[0068] The lifting device 70A is fixed to the upper - lower transmission cylinder 30L and the stay 32L in the same manner as the lifting device 17A, and the lifting device 70F is fixed to the upper - lower transmission cylinder 30R and the stay 32R in the same manner as the lifting device 17D. Note that the lifting device 70A is formed in the same manner as the lifting device 17A, and the lifting device 70F is formed in the same manner as the lifting device 17D.

[0069] The triggering device 70B and the triggering device 70D are fixed to the left part of the left - right transmission cylinder 42 provided at the lower part of the left - right transmission cylinder 41 and the left part of the left - right frame 44 provided at the upper part of the left stay 43, similarly to the triggering device 17B.

[0070] The triggering device 70B and the triggering device 70D are formed in the same manner as the triggering device 17B. On the rear surface of the triggering device 70B and the triggering device 70D, an engaged part 61 of the left engaging part 47L is provided, and on the lower part of the rear surface of the triggering device 70B and the triggering device 70D, a left clamping part 48L is provided. Also, on the left part of the left - right transmission cylinder 42 provided at the lower part of the left - right transmission cylinder 41, an engaging part 60 of the left engaging part 47L is provided, and on the right part, an engaging part 60 of the right engaging part 47R is provided.

[0071] The left part of the left - right transmission cylinder 42 provided at the lower part of the left - right transmission cylinder 41 and the left part of the left - right frame 44 provided at the upper part of the left stay 43 are connected by the left upper - lower frame 45L, and the right part of the left - right transmission cylinder 42 provided at the lower part of the left - right transmission cylinder 41 and the right part of the left - right frame 44 provided at the upper part of the left stay 43 are connected by the right upper - lower frame 45R.

[0072] The triggering device 70C and the triggering device 70E are fixed to the right part of the left - right transmission cylinder 42 provided at the lower part of the right - hand side upper - lower transmission cylinder 41 and the right part of the left - right frame 44 provided at the upper part of the right stay 43, similarly to the triggering device 17C.

[0073] The triggering device 70C and the triggering device 70E are formed in the same manner as the triggering device 17C. On the rear surface of the triggering device 70C and the triggering device 70E, an engaged part 61 of the right engaging part 47R is provided, and on the lower part of the rear surface of the triggering device 70C and the triggering device 70E, a right clamping part 48R is provided. Also, on the left part of the left - right transmission cylinder 42 provided at the lower part of the right - hand side upper - lower transmission cylinder 41, an engaging part 60 of the left engaging part 47L is provided, and on the right part, an engaging part 60 of the right engaging part 47R is provided.

[0074] The left part of the left - right transmission cylinder 42 provided at the lower part of the right - hand up - down transmission cylinder 41 and the left part of the left - right frame 44 provided at the upper part of the right - hand stay 43 are connected by the left up - down frame 45L. The right part of the left - right transmission cylinder 42 provided at the lower part of the right - hand up - down transmission cylinder 41 and the right part of the left - right frame 44 provided at the upper part of the right - hand stay 43 are connected by the right up - down frame 45R.

[0075] As shown in FIGS. 13, 14, 19, and 20, the pulling device 17 is provided with a tension adjusting part 80 for adjusting the tension of the pulling chain engaged with the drive sprocket 50.

[0076] The tension adjusting part 80 is formed by a tension sprocket 81 and a moving part 82 for moving the tension sprocket 81 in the vertical direction.

[0077] The moving part 82 is formed by a frame 84 provided on a bracket 83 that internally fits the rotating shaft 51 supporting the drive sprocket 50 and an adjusting member 86 provided on a bracket 85 that internally fits the rotating shaft supporting the tension sprocket 81. Thus, when the adjusting member 86 moves the bracket 85 upward, the tension of the pulling chain becomes tense, and when the adjusting member 86 moves the bracket 85 downward, the tension of the pulling chain can be relaxed.

[0078] In a side view, the frame 84 is formed in a J - shape. After extending upward from the upper part of the bracket 85, it extends rearward from the upper end part, and then a hook (the "first hook" in the claims) 87 that extends downward from the rear end part is formed. Also, at the vertical middle part on the back surface of the pulling device 17, at a position shifted to the side where the pulling lug 35 pulls the cereal straws, a pair of upper and lower hooks (the "second hook" in the claims) 88 are provided. It is preferable to attach an elastic member such as urethane or rubber to the inner peripheral surfaces of the hooks 87 and 88 to suppress vibration.

[0079] When removing the elevating devices 17B and 17C of the 4-row combine and easily removing the grain straws entangled with the conveying device 19 arranged behind the elevating devices 17B etc., as shown in Figs. 21 and 22, fasteners (not shown) of the weeding members 16 provided on both the left and right sides of the cutting device 3, or as shown in Fig. 23, fasteners (not shown) of the vertically extending lifting guide 5A provided on the front side of the step that the operator of the control unit 5 grips during lifting and lowering, the hooks 87 of the elevating devices 17B etc. can be locked. Thereby, a wide working space is secured in front of the conveying device 19, and it is possible to prevent the operator from accidentally hitting their head against the elevating devices 17B etc. Also, it is possible to suppress the adhesion of field soil to the sliding parts of the elevating devices 17B etc. and the resulting malfunction.

[0080] A sensor is provided near the fastener. When the sensor detects the elevating device 17B etc. locked to the fastener, the connection of the cutting clutch provided between the engine and the cutting device 3 is released and the output rotation of the engine is not transmitted to the cutting device 3. Thereby, it is possible to safely remove the grain straws entangled with the conveying device 19 by locking the hooks 87 of the elevating devices 17B etc. to the fastener.

[0081] Also, as shown in Fig. 24, the hooks 87 of the elevating devices 17B etc. can be locked to the opening and closing lever 4B extending in the front-rear direction for opening and closing the handling cylinder cover 4A that covers the upper part of the handling cylinder of the threshing device 4 when removing the elevating devices 17B etc. of the 4-row combine. Thereby, it is possible to suppress the adhesion of field soil to the sliding parts of the elevating devices 17B etc. and the resulting malfunction. Also, it is possible to reduce the number of accessory parts such as fasteners.

[0082] Furthermore, as shown in Fig. 25, the hooks 88 of the elevating devices 17B etc. can be locked to the narrow guide 1A extending in the front-rear direction of the machine body frame 1 that pushes the uncut grain straws planted on the left side in the traveling direction of the combine to the left. Thereby, it is possible to suppress the adhesion of field soil to the sliding parts of the elevating devices 17B etc. and the resulting malfunction, and it is possible to suppress the dropping of the elevating devices 17B etc. from the narrow guide 1A.

[0083] In the above description, the lifting device 17 of the 4-row combine harvester was described by taking the lifting device 17B as an example. The same applies to the lifting device 70 of the 6-row combine harvester, and thus the description thereof is omitted. In addition, FIGS. 21 to 25 illustrate a case where the lifting device 70E of the 6-row combine harvester is locked to a fastener or the like of the dividing grass body 16.

Explanation of Signs

[0084] 1 Body frame 3 Cutting device 4 Threshing device 5 Control section 5A Lifting guide 10 Cutting frame 15 Transmission cylinder 16 Dividing grass body 17 Lifting device 17B Lifting device 17C Lifting device 18 Cutting blade device 19 Conveyor device 22 Front and rear frame 23 Frame 35 Lifting lug 41 Vertical transmission cylinder 42 Horizontal transmission cylinder 43 Stay 44 Left and right frame 45L Left upper and lower frame 45R Right upper and lower frame 47L Left engaging part 47R Right engaging part 48L Left clamping part 48R Right clamping part 50 Driving sprocket 60 Engaging part 61 Engaged part (first engaged part) 65 Upper clamping part 65B Pin 65C Upper clamping main body part 66 Lower clamping part 66A Lower clamping main body part 66B Engaged part (second engaged part) 70 Lifting device 70B Lifting device 70C triggering device 70D triggering device 70E triggering device 87 Hook (first hook) 88 Hook (second hook)

Claims

1. In a combine harvester provided with a cutting device (3) on the front side of a machine body frame (1) equipped with an engine, a threshing device (4) on the rear left side of the cutting device (3), and a control unit (5) on the rear right side of the cutting device (3), on a cutting frame (10) of the cutting device (3), there are provided a weed separating body (16) for separating cereal straws, a lifting device (17, 70) for lifting the separated cereal straws, a cutting blade device (18) for cutting the base of the lifted cereal straws, and a conveying device (19) for clamping the cut cereal straws and conveying them to the threshing device (4). A first hook (87) is provided at the upper part of the back surface of the lifting device (17, 70). A pair of second hooks (88) are provided at a position offset to one side in the left-right direction at an intermediate part in the vertical direction of the back surface of the lifting device (17, 70) with a predetermined interval in the vertical direction. The first hook (87) is arranged above a drive sprocket (50) to which the output rotation of the engine is transmitted. The second hook (88) is arranged on the side for lifting the cereal straws by raising a lifting lug (35) provided with a chain engaged with the drive sprocket (50). On the weed separating bodies (16) arranged on both sides of the cutting device (3) and the lifting guide (5A) of the control unit (5), there are formed fasteners for locking the first hook (87) of the lifting device (17, 70) removed from the cutting device (3). The first hook (87) of the lifting device (17, 70) removed from the cutting device (3) can be locked to an opening / closing lever (4B) extending in the front-rear direction for opening and closing a threshing cover (4A) of the threshing device (4). The second hook (88) of the lifting device (17, 70) removed from the cutting device (3) can be locked to a narrow guide (1A) extending in the front-rear direction provided on the left side of the machine body frame (1). At an intermediate part of a transmission cylinder (15) extending in the left-right direction arranged at the upper part of the cutting frame (10), there are provided at least one or more vertical transmission cylinders (41) extending downward from the intermediate part of the transmission cylinder (15) and a left-right transmission cylinder (42) extending in the left-right direction from the lower part of the vertical transmission cylinder (41). At an intermediate part of a frame (23) extending in the left-right direction connecting the intermediate parts of front-rear frames (22) supporting the weed separating body (16), there are provided at least one or more stays (43) extending upward from the intermediate part of the frame (23) and a left-right frame (44) extending in the left-right direction from the upper part of the stay (43). A combine harvester, characterized in that the upper part of the starting device (17, 70) arranged in the middle in the left - right direction of the starting device (17, 70) is detachably fixed to the left - right transmission cylinder (42), and the lower part is detachably fixed to the left - right frame (44).

2. The fastener is provided with a sensor for detecting the first hook (87). When the sensor detects the first hook (87), the output rotation of the engine is not transmitted to the mowing device (3). The combine harvester according to Claim 1.

3. An elastic member is laminated on the inner circumferential portions of the first hook (87) and the second hook (88). The combine harvester according to Claim 1.

4. The right part on the side opposite to the starting side of the starting device (17B) located second from the left side of the starting device (17) and the left part on the side opposite to the starting side of the starting device (17C) located third from the left side of the starting device (17) are arranged opposite to each other. The upper part of the starting device (17B) is detachably fixed to the left part of the left - right transmission cylinder (42) by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left - right frame (44) by a left clamping part (48L). The upper part of the starting device (17C) is detachably fixed to the right part of the left - right transmission cylinder (42) by a right engaging part (47R), and the lower part is detachably fixed to the right part of the left - right frame (44) by a right clamping part (48R). The combine harvester according to Claim 1.

5. The right part on the side opposite to the starting side of the starting device (70B) located second from the left side of the starting device (70) and the left part on the side opposite to the starting side of the starting device (70C) located third from the left side of the starting device (70) are arranged opposite to each other. The right part on the side opposite to the starting side of the starting device (70D) located fourth from the left side of the starting device (70) and the left part on the side opposite to the starting side of the starting device (70E) located fifth from the left side of the starting device (70) are arranged opposite to each other. The upper part of the starting device (70B) is detachably fixed to the left part of the left - right transmission cylinder (42) extending from the lower part of the upper - lower transmission cylinder (41) on the left side by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left - right frame (44) extending from the upper part of the stay (43) on the left side by a left clamping part (48L). The upper part of the starting device (70C) is detachably fixed to the right part of the left - right transmission cylinder (42) extending from the lower part of the upper - lower transmission cylinder (41) on the left side by a right engaging part (47R), and the lower part is detachably fixed to the right part of the left - right frame (44) extending from the upper part of the stay (43) on the left side by a right clamping part (48R). The upper part of the triggering device (70D) is detachably fixed to the left part of the left - right transmission cylinder (42) extending from the lower part of the right - hand vertical transmission cylinder (41) by a left engaging component (47L), and the lower part is detachably fixed to the left part of the left - right frame (44) extending from the upper part of the right - hand stay (43) by a left clamping component (48L). The combine according to claim 1, wherein the upper part of the triggering device (70E) is detachably fixed to the right part of the left - right transmission cylinder (42) extending from the lower part of the right - hand vertical transmission cylinder (41) by a right engaging component (47R), and the lower part is detachably fixed to the right part of the left - right frame (44) extending from the upper part of the right - hand stay (43) by a right clamping component (48R).

6. The left engaging component (47L) is formed by an engaging part (60) provided on the left - right transmission cylinder (42) and a first engaged part (61) erected on the rear surface of the triggering device (17B, 70B, 70B). The right engaging component (47R) is formed by an engaging part (60) provided on the left - right transmission cylinder (42) and a first engaged part (61) erected on the rear surface of the triggering device (17C, 70C, 70E). The combine according to claim 4 or 5, wherein the first engaged part (61) is formed with concavities and convexities.

7. The left clamping component (48L) is formed by an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the triggering device (17B, 70B, 70D). The right clamping component (48R) is formed by an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the triggering device (17C, 70C, 70E). A pin (65B) extending in the left - right direction is provided on the upper clamping part (65). The front part of the arc - shaped upper clamping body part (65C) of the upper clamping part (65) is fixed to the pin (65B). The front part of the arc - shaped lower clamping body part (66A) of the lower clamping part (66) is rotatably fixed to the pin (65B). A second engaged part (66B) is provided at the rear part of the lower clamping body part (66A). The combine according to claim 4 or 5, wherein the rear part of the second engaged part (66B) is curved rearward and downward.

8. The combine according to claim 7, wherein elastic members are laminated on the inner peripheral surfaces of the upper clamping body part (65C) and the lower clamping body part (66A).

9. The left part of the left - right transmission cylinder (42) and the left - right frame (44) are connected by a left vertical - horizontal frame (45L) extending in the vertical direction, and the right part of the left - right transmission cylinder (42) and the left - right frame (44) are connected by a right vertical - horizontal frame (45R) extending in the vertical direction. The combine according to claim 1.

10. The combine according to claim 9, wherein in a side view, the left upper and lower frames (45L) and the right upper and lower frames (45R) are arranged parallel to the rear surface of the lifting device (17, 70).

Images