JPS6222124Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a safety device in the rear straw disposal section of a combine harvester.

In other words, an opening/closing plate is rotatably installed that alternately opens and closes the upper intake port of the straw cutter at the rear of the machine and the straw discharge port at the rear of the upper side. Conventionally, in the rear straw disposal section of a combine harvester, which is configured such that the opening/closing plate elastically holds the straw disposal port in a closed state by rotating the spring and pulling the spring,
The opening/closing plate that closes the straw outlet was supported by the spring to prevent it from rattling, but if the opening/closing plate was unexpectedly pushed from the outside, the spring would stretch further and the opening/closing plate would rotate, opening the straw outlet. There was a drawback that it became easy to manipulate.

The present invention solves this drawback and provides a simple structure for regulating the expansion of the spring, which can be suitably implemented.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side view of the combine harvester, in which a reaping section 5 is installed at the front of the machine body supported by crawlers 4, a threshing section 6 is installed at the rear of the machine body, and the right front part of the machine body is operated back and forth. A column 7 and a seat 8 are installed, a paddy tank 10 is installed behind the seat 8 so that the paddy can be received by a paddy bag 9, and an engine section 11 is installed behind it, making it similar to the conventional type. do.

A straw cutter A is installed behind the threshing section 6, which is the rear part of the machine. , 13' are constructed in the same manner as the conventional structure, and the terminal end of the straw discharging chain 14 extending from the threshing section 6 side is visible above the upper receiving opening 1 above the straw cutter A. A straw discharge port 2 is installed at the rear side of the cover 15 above the cutter A and at the upper rear side of the upper receiving port 1, and the structure is similar to the conventional type.

Reference numeral B denotes an opening/closing plate, which is formed to have a wide surface so as to open and close the straw discharge port 2 and the upper receiving opening 1, and triangular supporting plates 16, 1 connected to both sides of the opening/closing plate B.
6 on both sides of the cover 15 with support shafts 17,
The outer end of one support shaft 17, which is rotatably supported via a shaft 17 and protrudes outward from the side surface of the cover 15 on one side, is fixed to the intermediate portion of the interlocking rod 18.
Wires 19 and 20 are respectively connected to both ends of the structure.

Inside the support stand 21 in the vicinity of the seat 8, the center of an operating rod 23 is supported so as to be rotatable about a support shaft 22, and an operating lever 3 having a base fixed to the upper end of the operating rod 23 is supported. Groove 2 in the front and back direction of the stand 21
4, and is installed so as to be able to engage with a horizontal locking groove 25 at the rear of the groove 24, and a tension type spring is provided between the upper part of the operating rod 23 and the extending end of the wire 19. A tension type spring _S1 is provided between the lower part of the operating rod 23 and the extending end of the wire 20.

The spring S is constructed by forming bent extensions 27a and 27b on both ends of a coil spring 26 for hooking and retracting food.
A regulating body C is interposed in the part 6, which allows the operating lever 3 to extend to a certain extent until it engages with the locking groove 25 when the operating lever 3 is pulled, and does not allow further extension. As shown in FIGS. 4 to 6, the regulating body C has a threaded rod 28 inserted into the coil spring 26, and a disc at one end of the threaded rod 28 that abuts the outer side of one end of the coil spring 26. body 2
9 is fitted and locked, and a seat plate 30 that contacts the outside of the other end of the coil spring 26 is fitted to the other end of the threaded rod 28, and a certain elongation of the portion of the coil spring 26 is fitted to the outside of the seat plate 30. Adjustment member 3 for adjusting
1 are screwed together.

Therefore, when cutting straw, as shown in FIGS. 2 and 3, if the operating lever 3 is rotated backward and locked in the locking groove 25, the tension of the spring S and the When the wire 19 is pulled, the interlocking rod 18 rotates, and the opening/closing plate B stands up against the straw outlet 2 and closes.
is in an open state, and the waste straw carried out by the straw removal chain 14 falls from the upper receiving port 1 and passes through each disc blade 1.
2 and 12', it is cut into short pieces and released as in the conventional case.

In this state, the opening/closing plate B is elastically supported by the tension of the spring S, and the straw draining port 2 is closed to prevent rattling. When pushed by hand in the direction, the opening/closing plate B rotates to open due to the expansion of the spring S, but as shown in FIG. C disc body 29 and seat plate 3
0 and is restricted from extending any further, so the opening/closing plate B is in a state where it cannot open any further.

Further, as shown in FIG. 7, when the operating lever 3 is rotated to the other side, the opening/closing plate B is rotated to close the upper receiving port 1 due to the rotation of the interlocking rod 18, and the straw discharging chain 14 is rotated. The waste straw to be carried out is discharged from the opening/closing plate B through the straw removal port 2 to the outside of the machine.

In this way, the present invention is equipped with an opening/closing plate that alternately opens and closes the upper receiving opening of the straw cutter at the rear of the machine and the straw discharging opening at the rear of the upper side by rotation, and also opens/closing using a spring with an operating lever. In the rear straw disposal section of the combine, the opening/closing plate is configured to rotate a plate and force the straw discharge port into a closed state by pulling the spring, and the pulling operation causes the straw discharge port to be forced into the closed state. A regulating body is interposed in the spring held by the spring to allow a certain amount of elongation until the operating lever for pulling the spring engages with the locking groove of the support base, and does not allow further elongation. Since the body is equipped with an adjusting member for adjusting the above-mentioned constant extension of the spring, the opening/closing plate that closes the straw outlet can be elastically supported by the spring so as not to cause play, and the opening/closing plate can be prevented from being accidentally opened from the outside. Even if you push the spring, the control lever that pulls the spring engages with the locking groove on the support base and stretches to a certain level due to the regulating body, so the opening/closing plate will not open inward and your hands will not be able to open it. It is a safe structure that prevents accidents from getting into the straw cutter, and since the regulating body is equipped with an adjustment member that adjusts the constant elongation of the spring, there is no need to use any other means. However, the relationship between the engagement of the operating lever with the locking groove and the closed state of the straw outlet of the opening/closing plate can be well adjusted, and the structure has a simple structure and can be suitably implemented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the combine, Fig. 2 is a side view of the main parts, Fig. 3 is a sectional view of a part of Fig. 2, and Fig. 4 is a part of the spring. 5 is a bottom view of FIG. 4, FIG. 6 is an explanatory diagram of the operation of FIG. 5, and FIG. 7 is an explanatory diagram of the main part of the operation. A...Straw cutter, 1...Upper receiving port, 2...
Straw outlet, B...Opening/closing plate, 3...Operation lever, S...
...Spring, C...Regulating body, 21...Support stand,
25...Latching groove, 31...Adjustment member.

Claims (1)

[Scope of utility model registration request] Upper intake port 1 of straw cutter A at the rear of the aircraft
An opening/closing plate B is installed which alternately opens and closes the straw discharge port 2 at the rear of the upper side by rotation, and the opening/closing plate B is opened and closed via a spring S by the operation lever 3.
In the rear straw disposal section of the combine, which is configured such that the opening/closing plate B elastically holds the straw discharge port 2 in a closed state by rotating the spring S and pulling the spring S, the straw discharge port 2 is closed by the pulling operation. A regulation that allows the spring S that is elastically held in the state to elongate to a certain extent until the operating lever 3 that pulls the spring S engages with the locking groove 25 of the support base 21, and does not allow further elongation. In addition to interposing the body C, the regulating body C
2. A safety device in a rear straw disposal section of a combine harvester, characterized in that the device is equipped with an adjustment member 31 for adjusting the constant elongation of the spring S.