JPS6224434Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a horizontally rotating type pulling device installed side by side in the left and right direction at the front of the reaping device, and a vertically rotating type forced raking device placed in front of the side-by-side pulling device. , the transmission case interposed between the horizontal transmission case at the rear of the parallel pulling device rotates about two horizontal axes along the longitudinal direction of the aircraft, so that the transmission case is equidistant or approximately equal to one of the pulling devices. A reaping device configured to be able to switch freely between a first posture located in the center between the parallel pulling devices and a second posture located on the lateral outer side of one of the pulling devices with equal distances between the two. Regarding harvesting machines.

In the reaping and harvesting machine having such a configuration, even when the forced raking device is switched to either of the two positions, the device is located at an equal or approximately equal distance from one of the raising devices. is necessary to ensure a smooth and reliable transfer function of the stem culm between the two devices, and in order to meet this requirement and configure the posture to be freely switchable as described above, conventionally, the two rotation axes have been One of the rotational axes on the horizontal transmission case side was placed at the center between the two postures of the forced raking device, but in this case, the transmission case for the forced raking device was Since it must be installed through the inside of one of the lifting devices from the horizontal transmission case, special consideration is required to bypass various components inside the lifting device, and the transmission of the lifting device and forced raking device is There was a problem where the entire structure was likely to become complicated.

In view of the above-mentioned circumstances, the present invention can meet the above-mentioned requirements while simplifying the power transmission structure to the lifting device and the forced raking device, and also allows the posture of the forced raking device to be changed. The purpose is to make it quick and easy to carry out, and in the structure described above,
In configuring the forced raking device to be switchable between the two positions, one of the two rotation axes on the horizontal transmission case side is set between the two positions of the forced raking device. The case portion of the transmission case located between the two rotating shafts is placed between the other rotating shaft and the forced raking device. The case portion is configured to be longer than the case portion located at the side, and both of the case portions are bent and stretched around the other rotation axis as the forced raking device is switched to the first posture or the second posture. It is characterized by being configured as follows.

That is, by arranging the rotation axis of the sideways transmission case side not at the center between the two postures of the forced raking device, but between the parallel pulling devices displaced to one side, When transmitting power to one of the lifting devices and the forced raking device, there is no need to adopt a special detour configuration like in the past, and the transmission structure of the lifting device and the forced raking device can be simplified. Therefore, the above-mentioned requirements can be satisfied. Moreover, by configuring the case portion of the transmission case located between the two rotation axes to be longer than the case portion located between the other rotation axis and the forced scraping device, Although one rotational axis is displaced to one side as described above, the forcible scraping device can be moved to the two positions by only rotating the two case parts around the two rotational axes. For example, compared to a case in which the one case part is configured to be expandable and retractable so as to be able to absorb an amount corresponding to the displacement to one side, the forcible raking device can be reliably switched to Switching between two positions can now be done quickly and easily with less work.

Hereinafter, an embodiment of the present invention will be described based on the drawings. In a combine harvester in which a reaping section B is configured to be movable up and down by driving for the main machine A equipped with a threshing device 1, the reaping section B is as follows. Configure.

At the front of the clipper type reaping device 2, a pair of horizontally rotating pulling devices 3, 3 for pulling up two rows of planted stem culms rearward and upward are installed, with the tips of the pulling claws 3a, 3a facing each other. They are placed side by side in the left and right direction,
A vertical conveying device 5 is installed between the parallel pulling devices 3, 3 and the threshing device 1, and the vertical conveying device 5 gradually changes the harvested stem culm to a sideways posture while conveying it to the threshing feed chain 4. , from the reaping transmission case 6 immediately behind the reaping device 2 to the parallel pulling device 3,
Support rods 8 of the grass divider 7 extend forward through the central part between the grass dividers 3 and the lateral outer parts of the parallel pulling devices 3, 3, and the support rods 8 of the grass dividers 7, 7... Width l ₁ of the stem culm introduction path 9A located on the control section 10 side among the stem culm introduction paths 9A and 9B to the parallel pulling devices 3 and 3 formed between them.
is configured to be larger than the width _l2 of the other stem culm introduction route 9B.

Between the grass divider 7 . Rotary forced raking devices 11 and 12 are provided, and among these forced raking devices 11 and 12, one of the forced raking devices 11 located on the control section 10 side is connected to the parallel lifting device 3, 3. Due to the rotation of the transmission case 14 interposed between the transverse transmission case 13 at the rear and the two axes P ₁ and P ₂ along or almost along the longitudinal direction of the aircraft,
A first posture located in the center between the parallelly installed lifting devices 3 and 3 at an equal distance or approximately the same distance from one of the lifting devices 3 and one of the lifting devices 3
The other forced raking device 12 is configured to be able to be switched and fixed to a second position located on the lateral outer side of the transmission case 15 and the threshing feed chain 4, which are fixed to one end of the horizontal transmission case 13. Divider support rod 8 located at the most lateral side
It is installed in a fixed position throughout the entire process.

In order to configure one of the forced raking devices 11 to be able to switch freely between the two states, the transmission case 14 is placed at the center of the horizontal transmission case 13 between the two states of the forced raking device 11. A first case part 14A is fixedly connected to a position displaced to one side and protrudes forward in a state coaxial with one rotation axis _P1 through between the parallel pulling devices 3 and 3; A substantially crank-shaped second case portion 14B extending from the first case portion 14A to the other lifting device 3 side through the back of the forced raking device 11 in the first state, and from this second case portion 14B. The case 1 of the forced scraping device 11 extends forward in a state concentric with the other rotation axis P ₁ and has its tip end.
A third approximately L-shaped section is fixedly connected to the side surface of 1A.
and the second case part 14C.
The case portion 14b of the case portion 14B located between the two rotation axes P ₁ and P ₂ is connected to the third case portion 1
4C, the other rotation axis P ₂ and the scraping case 11
The first case portion 14 is configured to be longer than the case portion 14c located between the side surface of the
A, the second case part 14B, and the second case part 14B
and the third case portion 14C are respectively aligned with the aforementioned rotation axis.
The second case portion 14B and the third case portion 14C are rotatably fitted and connected around P ₁ and P ₂ .
is bent so that when the forced raking device 11 is in the first state, both the rotation axes P ₁ and P ₂ are located on both left and right sides of the forced raking device 11,
Further, the forcible raking device 11 is configured to be extended when it is in the second state.

Further, a grip operation lever 16 for switching the forced raking device 11 between the two states is provided at a corner of the third case portion 14C, and a grip operation lever 16 is provided at a corner of the third case portion 14C, and a grip operation lever 16 is provided for switching the forced raking device 11 between the two states. Retaining members 17 and 18 are provided between the second case portion 14B and the third case portion 14C, respectively.

In order to fix the lower end of the one forced raking device 11 to the divider support rods 8, 8 in the first and second states, the divider support rod 8 is attached to the lower end of the raking case 11A. ,8
A substantially inverted U-shaped connecting member 19 that can be fitted from above is fixed, and can be freely inserted into and extracted from the lateral side of the connected connecting member 19 and the divider support rod 8 or 8 in the fitted state. A pair of front and rear L-shaped fixed connecting pins 20, 20 are provided, and near the lower end of the scraping case 11A,
The other end portion 20 of both fixed connecting pins 20, 20
substantially U-shaped locking portions 21a, 21a that can elastically hold and hold a, 20a in the inserted state;
A locking member 21 having a shape is fixed thereto.

Further, on the raking and transfer action surfaces of both the forced raking devices 11 and 12, and on the opposing inner surfaces,
Approximately trapezoidal regulating plates 22, 22 for regulating the operating ranges of the locking claws 11a, 12a are pivotally mounted around the vertical axis so as to be rotatable and fixed, respectively, and the regulating plates 22, 22 are When the free end is switched to the inclined position inward and rearward in the width direction of the machine body, the stem culms to be reaped introduced into the stem culm introduction paths 9A, 9B are pulled up by the parallel pulling devices 3, 3. It is configured so that it can be used as a guide for guiding the transition into the action area, and among the dividers 7, there is a direction from the dividers 7, 7 located on the left and right lateral outer sides toward the side of the parallel pulling devices 3, 3. Extend the guide rods 23, 23 that guide the transition of the base of the introduced planted stem culm,
In addition, the rear end portions of the front weed divider 7... and a portion of the protruding locus of the claw tips of the forced raking devices 11 and 12 are positioned to overlap in side view.

Then, during reaping work in a field where the planted stem culms are entangled and lying down, the regulation plates 22, 22
is switched to the above-mentioned guiding posture or a non-working posture in which it protrudes rearward along or almost along the direction of movement of the aircraft. If there is a possibility that the lifting action may cause grain shedding, the regulating plates 22, 22 are configured to be switched to a regulating posture in which they protrude forward along or almost along the direction of movement of the machine body.

In the above-mentioned embodiment, the lower end of the one forced raking device 11 is fixed to the divider support rod 8 or 8 via the pins 20, 20, but as shown in FIGS. 6 and 7, The divider support rods 8, 8 are divided into pipe-like rod portions 8A, 8A on the reaping gear case 6 side and rod-like rod portions 8B, 8B on the grass divider 7, 7 side, and both rod portions 8 are separated.
Plate A, 8B and 8A, 8B and bolt 2
4 and 24, and a connecting member 25 is provided at the lower end of the forced raking device 11, which can be inserted into and extracted from the rod-shaped rod portions 8B, 8B from the axial direction thereof. The rod-shaped rod portion 8B or 8 is fixed and the forced raking device 11 is inserted into the lower end connecting member 25 thereof.
By fixedly connecting B to the pipe-shaped rod portion 8A or 8A, it may be configured to be fixed to the divider support rod 8 or 8 in the first or second state.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the reaping harvester according to the present invention, and FIG. 1 is an overall side view of the combine harvester, and FIG.
The figure is a partially omitted front view of the main parts, Fig. 3 is a cross-sectional plan view of the main parts, Figs.
7 are a side view and a longitudinal sectional front view showing another lower end mounting structure of the forced raking device. 2... Reaping device, 3... Raising device, 11...
Forced scraping device, 13... Horizontal transmission case, 1
4...Transmission case, 14B, 14C...Case portion, _P1 , _P2 ...Rotation shaft center.

Claims (1)

[Scope of utility model registration request] At the front of the reaping device 2, there is a horizontally rotating pulling device 3, 3.
are arranged side by side in the left and right direction, and these parallel pulling devices 3, 3
A vertically rotating forced raking device 11 placed in front of the
, due to the rotation of the transmission case 14, which is interposed between the vertical transmission case 13 at the rear of the upright pulling devices 3 and 3, about two horizontal axes P ₁ and P ₂ along the longitudinal direction of the aircraft. A first position located in the center between the parallel lifting devices 3, 3 and a lateral outer portion of one of the lifting devices 3, with the same distance or approximately the same distance away from the lifting device 3. The two rotation axes P 1 , P 2 are configured to be able to switch freely between the second posture located at P ₁ and P ₂ .
Among them, one rotation axis _P1 on the horizontal transmission case 13 side is disposed between the parallel pulling devices 3, 3 displaced with respect to the center between the two postures of the forced raking device 11, A case portion 14B of the transmission case 14 located between the two rotation axes P ₁ and P ₂ ,
The case portion 14C is configured to be longer than the case portion 14C located between the other rotation axis _P2 and the forced raking device 11,
Both case parts 14B and 14C are configured to bend and expand around the other rotation axis _P2 as the forced raking device 11 is switched to the first or second position. A reaping harvester.