JP2578688Y2 - Cover opening and closing device in combine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing device for a combine mounted on the rear of a self-removable combine used for harvesting rice and wheat.

[0002]

2. Description of the Related Art Conventionally, it is known that a cover of a grain discharge cylinder is rotated in conjunction with opening of a cutter by a cover opening / closing device of a combine mounted on a rear part of a self-removing type combine. ing.

[0003]

Conventionally, when the cutter is rotated and opened by a cover opening / closing device in a combine which is attached to the rear of a known self-removing combine, the cover of the grain discharge cylinder is interlocked. For rotating objects, the angle of rotation of the cover of the grain discharge cylinder is small, and the cutter with a large turning radius moves while not creating enough space, causing interference between the cover of the grain discharge cylinder and the side of the cutter. There was something to do.

[0004]

According to the present invention, a pretreatment device is provided at the front of a machine having a traveling device, a threshing device is mounted on one side of the machine, and a driver's seat is provided at the front of the other side. A grain tank is arranged at the rear, and a cutter is supported at the rear of the threshing device so as to horizontally turn around the grain tank side,
An open / close lever for opening the cover in conjunction with the rotation of the cutter is provided between the cutter and the cover, in a combine in which the outside of the grain discharge cylinder erected at the rear of the grain tank is covered with an openable / closable cover. The above-mentioned problem has been solved by connecting a toggle type spring pivotally supported by a fulcrum shaft to the opening / closing lever and extending inward and outward of the fulcrum shaft.

[0005]

[Function] The crops harvested in the pre-processing section at the front of the machine stand are threshed and sorted by a threshing device provided on one side behind the same, and the straw is shredded by a cutter at the rear, and is removed from the rice field. While the kernels are stored in a kernel tank at the rear of the driver's seat,
Further, when the grain tank is full, the grain is discharged from the grain discharge cylinder to the bed of another carrier. The cutter and the cover of the grain discharge tube can be opened and closed in a horizontal plane for cleaning, inspection and maintenance, etc., but interlocked with the rotation of the cutter between the cutter and the cover of the grain discharge tube. The opening and closing lever for opening the cover is pivotally supported by a fulcrum shaft, and a toggle type spring that moves in and out of the fulcrum shaft is connected to the opening and closing lever. The urging force is acting, but when the cutter is turned and opened, the opening / closing lever is slightly turned in conjunction with the turning of the cutter. Acts in the direction of opening the cover of the cylinder, and the cover of the grain discharge cylinder opens largely centering on the grain tank side in advance, creating sufficient space and not obstructing when rotating and opening the cutter . When cleaning and inspection and maintenance are completed, close the cutter by rotating it first, and then move the cover of the grain discharge cylinder inward beyond the dead center against the urging force of the spring. When it is returned with, the rest is automatically restored by the biasing force of the spring.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. As shown in FIGS.
In the threshing section of the threshing device 2 provided at one side behind the ears, the harvested crops harvested and transported in the above are threshed and sorted, and the threshed-sorted grains are stored in the grain tank 4 behind the driver's seat 3. On the other hand, the waste straw is sent backward by a transport chain, cut into pieces by a rear cutter 5, and uniformly spread on the rice field. Furthermore, when the grain tank 4 is full, the machine is brought to the transport vehicle parked on the road, and the discharge section at the tip of the grain discharge cylinder 6 faces the loading platform, and the discharge clutch is engaged in another state. When,
The grains in the grain tank 4 are sent rearward by a transfer spiral provided at a lower portion, are lifted by a grain discharge cylinder 6, and are discharged to a carrier of a transport vehicle.

[0007] The cutter 5 and the grain discharge cylinder 6 are covered by a traveling device 7 during which the combine 8 travels during the napped, so as not to damage the napped nectar culm and to prevent a danger to the operator. Although it is covered with 10, it is configured to be openable and closable in a horizontal plane when the cutter 5 or the sorting unit of the threshing device 2 in front of the cutter 5 is cleaned and inspected as required.

As shown in FIGS. 4 and 5, between the cutter 5 and the cover 10 of the grain discharge cylinder 6, an inverted L-shaped support 11 is vertically fixed to the rear of the machine stand of the combine 8, and the support 1
In the inside of the inverted L-shaped support bracket 12 fixedly inscribed in 1, bearings 13 a, 13 b are provided at two locations vertically.
Are fixed, and pins 14a and 14b are vertically erected on the respective bearings 13a and 13b in the vertical direction.

On the other hand, on the side of the cutter 5 near the grain discharge cylinder 6, two upper and lower brackets 15a, 15b are provided at positions corresponding to the pins 14a, 14b toward the side.
b, the upper and lower brackets 15a, 15b are connected by bosses 16a, 16b, and loosely fitted on the pins 14a, 14b to form a pivot point for opening and closing the cutter 5. Also,
From the lower bracket 15b, a lever holding member 17 is provided protruding from the lower bracket 15b so as to bypass the bearing 13b downward and to face rearward, and abuts a side surface of an opening / closing lever 22 described later. In addition, presser foot 1
7 protruding from the brackets 15 and 15b,
May be supported so as to face the presser fitting 17.

A bracket 19 is welded rearward to a lower portion of the support fitting 12, and a fulcrum boss 20 is fixed to the tip of the bracket 19, and a fulcrum shaft 21 fitted to the fulcrum boss 20 is opened and closed in a flat L-shape. The lever 22 is attached and serves as the center of rotation.

A C-link 23 having one end connected to the base of the opening / closing lever 22 bypasses the fulcrum boss 20, and the other end of the C-link 23 is toggled to a pin 24 a of a bracket 24 projecting from the support 11. When the line AB is inside the dead center, the spring 25 urges the cover 10 in the closing direction, and when the line AB is inside the dead center, the spring 25 closes the cover 10 when the line AB is outside the dead center. 10 is urged in the opening direction.

Furthermore, pins 26a and 26b are implanted at two intervals above and below the inside of the support fitting 12, and when the cover 10 is closed, it is fixed to the inside of the cover 10 via the connecting plate 10a. Metal fittings 27a and 27b each formed of a leaf spring having a tulip-shaped cross section are inserted and fitted into the pins 26a and 26b to be positioned and fixed.

When the cutter 5 is rotated about the pin 14 and opened for cleaning, inspection, etc., if the cutter 5 is slightly rotated, the lever presser fitting 1 integral with the cutter 5 is opened.
7 also slightly rotates to push the side surface of the opening / closing lever 22 with which the tip abuts, and the cover 10 of the kernel 6 is always
The opening / closing lever 22 is turned around the fulcrum shaft 21 against the urging force of the spring 25 acting in the closing direction of the Is the cover 1 of the kernel 6
0, the cover 10 of the grain discharge cylinder 6 opens greatly in advance in conjunction with the rotation of the cutter 5, so that a sufficient space is secured and obstruction when the cutter 5 is rotated and opened. do not become.

When the cleaning, inspection and maintenance are completed and the door is closed,
First, the cutter 5 is rotated and closed, and then the cover 10 of the grain discharge cylinder 6 is manually returned to a position beyond the fulcrum shaft 21 where the line AB is a dead center. It is automatically closed by the force and the metal fittings 27a and 27b
a, 26b, and are positioned and fixed to cover 10
Returns to its original position.

[0015]

According to the present invention, a pretreatment device is provided at the front of a machine having a traveling device 7, a threshing device 2 is mounted on one side of the machine, and a driver's seat 3 is provided at the front of the other side. , Grain tank 4 at the rear
Is disposed, and a cutter 5 is supported at the rear part of the threshing device 2 so as to horizontally turn around the grain tank 4 side,
In a combine, in which the outside of a grain discharge cylinder 6 erected at the rear of the grain tank 4 is covered with a cover 10 that can be opened and closed, between the cutter 5 and the cover 10, in conjunction with the rotation of the cutter 5. An opening / closing lever 22 for opening the cover 10 is pivotally supported by a fulcrum shaft 21 and the opening / closing lever 22 is connected to a tension line AB.
Is rotated so as to open the cutter 5 by connecting a toggle type spring 25 that moves inward and outward of the fulcrum shaft 21, and the cover 10 automatically and rapidly largely rotates following the rotation to follow the rotation. A space can be easily secured, and the cover 10 can be quickly retracted without hindering the rotation of the cutter.

[Brief description of the drawings]

FIG. 1 is a perspective view of a combine.

FIG. 2 is a rear view of the combine.

FIG. 3 is a plan view of the cutter device.

FIG. 4 is a perspective view of the opening / closing device.

FIG. 5 is a plan view of the switching device.

[Explanation of symbols]

 2 Threshing device 4 Grain tank 5 Cutter 6 Grain discharge cylinder 10 Cover 11 Support 12 Support bracket 17 Lever holding bracket 21 Support shaft 22 Opening / closing lever 23 C link 25 Spring

Claims (1)

(57) [Scope of request for utility model registration] 1. A pretreatment device is provided at a front portion of a machine having a traveling device 7, a threshing device 2 is mounted on one side of the machine, a driver's seat 3 is provided at a front portion on the other side, and a grain is provided at a rear portion. Arrange the grain tank 4,
At the rear of the threshing device 2, a cutter 5 is attached to the grain tank 4.
In the combine, which is supported so as to rotate horizontally around the side and covers the outside of a grain discharge cylinder 6 erected at the rear of the grain tank 4 with a cover 10 that can be opened and closed, a combination of the cutter 5 and the cover 10 is provided. In the meantime, an opening / closing lever 22 that opens the cover 10 in conjunction with the rotation of the cutter 5 is pivotally supported by a fulcrum shaft 21, and a tension line AB extends inward and outward of the fulcrum shaft 21 to the opening / closing lever 22. A cover opening / closing device in a combine, wherein the spring 25 is connected.