JPH02109909A - Carrier structure of rush harvester - Google Patents

Abstract

PURPOSE:To simply the structure of a rush harvester and the improvement of workability by automatically opening the side wall of a reaped rush-carrying table in a desired inclined, releasing posture while utilizing the swinging motion of the reaped rush-carrying table. CONSTITUTION:A reaped rush-carrying table 15 is disposed by attaching to the fulcrum of a frame in a state capable of being dumped. A side wall 37 for stopping the movement of reaped rush straws is disposed in a state capable of being switched into an open swung posture for releasing the carried rush straws. The rock mechanism 34 of the side wall 37 comprises a rock lever 34, a rock arm 34A for controlling the transfer of the rock lever 34 and an acceleration mechanism 34B. The tip contacting portion 18a of a rod 18 is brought into contact with a receiving portion 35 of the frame or the rock arm 34A. The other end portion of the rock arm-releasing rod 18 for compulsorily transferring the rock arm 34A in an engagement-relessing direction is structured so as to be linked to the rock arm 34A or the receiving portion of the frame.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention comprises a loading platform for collecting harvested grain culms, which is configured to be swingable as a dumper around an attachment fulcrum to the machine body, and a loading platform for collecting harvested grain culms is configured to be able to swing around a fulcrum attached to the machine body. The present invention relates to a straw harvester storage structure in which a side wall provided on the dumping side of a loading platform for receiving the collected grain culms can be switched to an open swinging position for releasing the collected grain culms.

[Conventional technology]

As the harvesting structure of this type of straw harvester,
There is a method previously proposed by the present applicant in No. 104325, the gist of which is to provide a mechanism for switching the side wall to a discharge position while the loading platform is switched to a predetermined tilted position for discharge. It was at a certain point. In this way, the side wall is switched to the discharge position only after the loading platform is switched to a predetermined tilted position, compared to, for example, the side wall is switched to the discharge position at the same time as the loading platform is dumped, and the stored grass is sequentially released. Since the stored rushes can be released all at once, the rushes are released while maintaining the stored state, and the advantage is that it is possible to avoid damage caused by entanglement of the rushes when they are released.

[Problem to be solved by the invention]

In this case, as shown in FIG. 1, the locking mechanism (34) that maintains the side wall (37) in the grain culm receiving attitude is connected to a locking rod that moves in conjunction with the opening swing of the side wall (37). (
34C), a lock arm (34A) that engages with the lock rod (34C) to restrict movement of the lock rod (34C'), and a biasing mechanism that biases the lock arm (34A) in the engagement direction. (34B) It is composed of
A manual operating lever was equipped as a mechanism for releasing the locked state of this locking mechanism (34) and switching the side wall (37) to the release position (the manual operating lever is not shown and was conventionally designated by number <18). (There are no parts for this).

However, this manual operation lever must be operated against the engagement between the lock rod and the lock arm, which is under the load of the stored grass, and the operating force required of the operator is large. was there.

An object of the present invention is to provide a device that can improve operability by providing a simple release mechanism for the lock mechanism.

[Means to solve the problem]

Characteristic configurations according to the present invention include: (1) a locking mechanism that maintains the side wall in a grain culm receiving posture; a locking rod that moves in conjunction with the opening swing of the side wall;
The structure includes a lock arm that engages with the lock rod to restrict movement of the lock rod, and a biasing mechanism that biases the lock arm in the engagement direction. In order to release the engagement state of the lock arm with the lock rod while the lock arm is oscillated, the free end thereof is brought into contact with the fuselage side cradle or the lock arm, and the lock arm is forcibly moved in the disengagement direction. The other end of the lock release rod is linked to the lock arm or the body side cradle, and its effects are as follows.

[For production]

The loading platform (15) swings upward with the rushes stored. Even in this state, the lock arm (34A) engages with the lock rod (34C) by the biasing force of the biasing mechanism (34B) and maintains the locked state.

As shown in FIG. 1, when the stacking table (15) swings in this state and reaches a predetermined tilted posture, the lock arm (34A)
The other end of the lock release rod (18) connected to the lock release rod (18) comes into contact with the fuselage side cradle (35), and the lock release rod (18
) is relatively moved toward the lock arm (34) by the reaction, thereby moving the lock arm (34) in the disengagement direction. Then, the side wall (37) swings and rushes are released.

〔Effect of the invention〕

Therefore, the side wall can be automatically opened in a predetermined inclined discharge position by using the rocking movement of the stacking table, and there is an advantage that no manual operation force is required. Moreover, by adopting a mechanical structure that includes a lock release rod and a cradle on the body side, for example, when adopting a structure in which the lock mechanism is released by an actuator that requires a control circuit or a sensor. The structure can be made simpler by comparison.

〔Example〕

I will explain about the riding-type strawberry harvester.

As shown in Figures 7 and 8, a pair of left and right weeding devices (1), (1) are used to untangle the planted grass, and a pair of left and right weeding devices are used to introduce and raise the planted grass after cutting. Raising device (2), (
2) A clipper-type reaping device (3) for cutting the roots of the grass that has been raised is placed on one side of the front end of the traveling machine (4), and the upper part of the grass that has been cut is suspended and held. A front and rear clamping conveyance device (5) is provided at the rear of the machine and conveys it diagonally upward, and a pair of upper and lower cross-feeding conveyance devices (8 )
At the same time, the plant side portion of the rush that was forcibly conveyed in front of the air blower (6A) outlet (6a) by the conveying device (8) against the discharge wind force is transferred to the air blower (6A).
A wind-type selection device (6) is provided that selects the blow-up shoulder portion upward by the air discharged from the air outlet (6a), and further,
It is equipped with a locking claw lifting and conveying device (12) that guides the plant-side portion of the rushes blown up by the discharge wind onto the bundling bed (10), and also selects the rushes placed on the bundling bed (10). An auxiliary sorting device (13) and a binding device (7) are arranged, and a reaping frame (33) is mounted on the above, and this reaping frame (33) is attached to the traveling machine body (4) with a horizontal axis (X).
), and is moved up and down by a cylinder (14) and a pantograph-type elevating link mechanism (19) behind this binding device (7), and by releasing the first mechanism described later. Rear fulcrum (Y
) is provided with a loading platform (15) that swings up and down (dumping operation) integrally with a pantograph-type lifting link mechanism (19), and a receiving rod ( 37) is installed so that it is tilted backwards, and the engine (16) and driving section (9) are installed on the side opposite to the hoisting device (2), and these are connected to the left and right crawler traveling device (11).
).

(11) is mounted on a traveling body (4) to constitute a riding type straw harvester.

Next, the loading table (15) will be explained. Figures 3 and 4
As shown in the figure, this loading platform (15) is attached to the traveling aircraft (4) via a pantograph-type lifting link mechanism (19). That is, the lower rear end of the second link (21) of the two left and right links in the elevator link mechanism (19) is pivoted to the traveling body (4) using the connection fulcrum (Y). ) is configured to be able to swing up and down around this connection fulcrum (Y), and the rear upper end of the first link (20) that constitutes the elevating link mechanism (19) together with the second link (21) is connected to the loading platform (15). ) A lifting link mechanism (19) is connected to the loading platform (15) by being pivotally supported on the lower surface so as to be relatively swingable. On the other hand, a transfer roller (22) is attached to the upper front end of the second link (21) and the lower front end of the first link (20), and the upper front end of the second link (21) is attached to the lower surface of the loading platform (15). It is held in a relatively slidable manner within a channel-shaped fixed guide frame (23) which is a mounting. On the other hand, the front lower end of the first link (20) is also held relatively slidably within a channel-shaped fixed guide frame (24) which is similarly fixed to the traveling body (4).

Next, the first switching mechanism (A) will be explained.

As shown in FIG. 5, a notch is provided on the upper surface of the rear end of the left and right channel-shaped fixed guide frames (24), (24) to allow the transfer roller (22) to be pulled out. A sliding holding member (25) that slides back and forth to open and close is provided, and a guide holding member (26) is provided that allows the sliding holding member (25) to slide but prevents the traveling body (4) from being lifted from the upper surface. ) is provided. The left and right sliding pressing members (25) are integrally connected by a horizontal frame (27) and slide together.

Therefore, the first linking rod (2) is attached to the manual operation lever (28).
9), left and right bell cranks (3) connected by (29)
0) and (30), the second linking rod (31),
(31) is extended and connected to the horizontal frame (27) by means of a sliding presser member (25), (25)
can be artificially manipulated. Therefore, as shown in Figure 4,
If the cylinder (14) is extended with the rear end notch of the guide frame (24) closed by the sliding presser member (25), the first link (20) is moved by the transfer roller (22). The lower front end and the upper front end of the second link (21) form a channel-shaped guide frame (23>).

(24) to the rear, and the elevating link mechanism (19) becomes in an extended state. Then, as shown in Figure 4, the loading platform (
15) move up and down in parallel. On the other hand, as shown in FIG. 3, the cylinder (1
4) is extended, the elevating link mechanism (19) is in a contracted state and swings upward with the loading platform (15).

Next, a handrail-like receiving rod (37) is provided on the rear surface of the loading platform (15) as a side wall, and this receiving rod (37)
In addition to blocking the accumulated crops, the loading table (15
) is configured to be openable in the dump state, and the second switching mechanism for this receiving rod (37) will be explained.

As shown in Figure 1, a frame (17) is installed on the loading platform (15) to receive the stem tip of the collected rush grass and prevent it from drooping. This stem end receiver has the receiving rod (37) connected with a pin to the rear end of the frame (17) so as to be relatively swingable. This stem tip has a frame (17) with a locking mechanism (34) at its front end.
Movement is regulated by. This locking mechanism (3
4) includes a pair of lock arms (34A) that swing around the pivot shaft (32); and the lock arms (34A).
and a compression spring (34B) interposed between the stem end receiver and the tip of the frame (17) to urge the lock arm (34A) in the locking direction;
A) The stem end receiver consists of a frame (17) and a locking rod (34C) that operates integrally with the frame (17) to maintain the locked state by engaging with the locking hole formed in the.

Here, the receiving rod (37) is biased to the grain culm receiving position by a weak biasing force of the compression spring (34B) to the extent that it cannot lift the grain culm bundle in the grain culm release predetermined tilted position. There is. When the receiving rod (37) is in the grain culm blocking position, the locking arm (34A), which is biased to swing by the compression spring (34B), is inserted into its locking hole, as shown in FIG. the said locking rod (34
C) to prevent the receiving rod (37) from swinging toward the grain culm release position. In this state, the loading platform (1
Even if the dump truck (5) swings, the locking mechanism (34) is activated, so even if the load of grass is applied, the receiving rod (37)
does not open.

On the other hand, one end of a lock release rod (18) is pivotally supported by the lock arm (34A), and the guide plate (15) whose tip end portion is fixed to the side surface of the loading platform (15).
a) is inserted into and supported by the lock arm (34A);
Lock release rods (1 and 8) are provided so as to be slidable relative to the guide plate (15a) in conjunction with the rocking movement of the guide plate (15a). A body-side cradle (35) is provided on the traveling body (4) on the tip side of the lock release rod (18) to receive the tip contact portion (18a) of the lock release rod (18). . The distance between the tip contact portion (18a) of the lock release rod (18) and the receiving surface of the machine side cradle (35) is kept wide when the loading platform (15) is in the state before the dump swing. As the dumper begins to swing, the size gradually decreases, and when the grain culm is released into a predetermined tilted posture, it becomes substantially zero, and the tip contact portion (18a) of the lock release rod (18) is moved toward the fuselage side. It comes into contact with the pedestal (35). Then, this lock release rod (18) is attached to the fuselage side cradle (35).
) to swing the lock arm (34A) in the unlocking direction. Therefore, the lock is released and the receiving rod (37) is switched to the grain culm releasing position.

In this case, the posture of the receiving rod (37) is set so that it is on the same plane as the collecting surface of the loading platform (15), and the PVC sheet (37) is placed between this collecting surface and the receiving rod (37). In cooperation with the provision of (36), the structure improves the slippage of the ejected grain culm. When all the grain culms are released, the receiving rod (37) is returned to the grain culm receiving position by the force of the compression spring (34B) with the lock arm (34A) maintained in the unlocked position as the fixed end. .

In addition, since the tip contact part (18a) is screwed in to the proximal end of the lock release rod (18), by adjusting its protrusion length, it can be attached to the body side cradle (35). It is configured so that the timing of contact can be changed and the timing of releasing the grain culm of the receiving rod (37) can be changed.

[Another example]

■ The rocking (dumping) direction of the loading platform (15) is set to the rear side, and the receiving rod (37) is set correspondingly to the loading platform (15).
), but the receiving rod (37) may be provided on the side with the dumping direction being on the side of the fuselage.

(2) Although the side wall (37) is of a receiving rod type, the entire surface may be made of a plate member, and is not limited to the one shown in the drawing.

■ The lock arm (34A) is pivoted to the fuselage side cradle (35), and its tip abutting part (18a)
) may be brought into contact with the lock arm (34A).

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the storage structure of the straw harvester according to the present invention, FIG. 1 is a side view showing a locking mechanism and a lock release mechanism, FIG. 2 is a side view showing the locking mechanism, and FIG. 3 is a loading platform. FIG. 4 is a side view showing the lifting and lowering state of the loading platform, FIG. 5 is a perspective view showing the first switching mechanism, and FIG. 6 is a longitudinal cross-sectional rear view showing the sliding holding member. , FIG. 7 is a side view of the rice grass harvester, and FIG. 8 is a plan view of the rice grass harvester. (15) Loading platform, (18) Lock release rod, (18a) Tip abutment, (34) Lock Machine m, (34A)...
...Lock arm, (34B) ...Biasing mechanism, (34C) ...Lock rod, (35) ...
...Aircraft side cradle, (37)...Side wall, (Y)...
...Mounting fulcrum.

Claims (1)

[Claims] A loading platform (15) for collecting reaped grain culms is configured to be swingable for dumping around an attachment fulcrum (Y) to the machine body, and receives the grain culms collected on the loading platform (15). A side wall (
37) is configured to be switchable to an open swinging position for releasing the collected grain culms, the straw harvester has a locking mechanism (37) for maintaining the side wall (37) in the grain culm receiving position.
34), a lock rod (34C) that moves in conjunction with the opening swing of the side wall (37), and a lock arm that engages with the lock rod (34C) to restrict movement of the lock rod (34C). (34A) and a biasing mechanism (34B) that biases the lock arm (34A) in the engagement direction, and when the side wall (37) is swung to a predetermined grain culm release inclined posture, the Lock rod (3) of lock arm (34A)
In order to release the engagement state with respect to the fuselage side cradle (3C)
5) Or attach the lock arm (34A) to its tip abutting part (
a lock release rod (18a) that forcibly moves the lock arm (34A) in the disengagement direction by abutting the lock release rod (18a);
) The other end of the straw harvester is connected to the lock arm (34A) or the body side cradle (35).