JPH0356183Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pulling device for a stem culm reaper such as a combine harvester or a binder.

[Problems to be solved by the prior art and the invention] Generally, the pre-treatment section of this seed culm cutter includes:
There is a main pulling body that protrudes on either the left or right active side and pulls up the stem culms planted in the field. It is known that a so-called auxiliary triggering body is provided on the side of the main triggering body, with triggering claws protruding forward to the action side to trigger the stem culm and at the same time actively shedding the grass to the left and right sides. ing. However, in the past, these auxiliary pulling bodies, like the main pulling body, operated by receiving direct power transmission from the pre-processing section frame side through a power transmission means such as a chain transmission. Not only does the structure become complicated due to the need for a transmission mechanism, the number of parts increases, making assembly complicated, and the auxiliary lifting body becomes larger and heavier, making the aircraft smaller. This has become a problem as it has drawbacks such as going against the weight reduction goal.

Therefore, for example, by engaging the lifting pawl of the auxiliary lifting body with the lifting pawl of the main lifting body on the return path of the lifting pawl, etc., and receiving the driving force of the main lifting body, the auxiliary lifting body can be raised. It is conceivable to configure it so that it is driven, but if this is done, there is a risk that the driving load of the auxiliary lifting body will interfere with the smooth operation of the main lifting body, so it will not be adopted as is. I can't.

Furthermore, such an auxiliary puller assists the division of stem culms, but the conventional auxiliary puller is
This issue has not been studied in detail, and the tips of the spikes are easily damaged by breakage due to forced weeding, and further improvements in this respect are required.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a lifting device for a stem culm reaper that can eliminate these drawbacks. A pair of left and right main pulling bodies configured in a pre-processing section for reaping culms, with lifting claws protruding from either the left or right working side that acts to pull up the stem culm, and the opposite non-working side. The comrades are provided so that the non-working sides thereof face each other, and the pulling pawls protruding from each main pulling body side toward the non-working side are alternately drawn out at a predetermined interval and move downward; The pitch of the raising claws of the auxiliary raising body, in which the raising claws protrude from the front working side and the rear non-working side, respectively, which act to raise the weeds of the stem culm,
Half the pitch of the lifting claw of the main lifting body,
Further, the auxiliary lifting body is moved to the opposite side of the left and right main lifting bodies so that the lifting pawl protruding to the non-working side of the auxiliary lifting body engages with the lifting pawl projecting to the non-working side of the left and right main lifting bodies. The auxiliary lifting body is arranged between the working sides, and the auxiliary lifting body is driven by receiving the downward force of the lifting claws alternately drawn out from the left and right main lifting bodies, and furthermore, the auxiliary lifting body is arranged in front of the left and right main pulling bodies so that the starting end of the raising overlaps with the weeding body provided at the lower part of the front end of the pre-processing part, and the terminal end is located in the middle part of the main pulling body, and from the case body. It is characterized in that it is detachably attached to the front plate of the left and right lifting bodies via an extending bracket.

With this configuration, the present invention allows the auxiliary pulling body to receive driving force from the left and right main lifting bodies to carry out the weed-pulling operation, so that the auxiliary pulling body can move the auxiliary pulling body to the main pulling body. The influence of driving load can be suppressed as much as possible, and damage caused by forced weeding of stem culms can be avoided as much as possible.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a pre-processing section of the combine, and the pre-processing section 1 includes a pair of main lifting bodies located at both left and right end positions, with lifting claws protruding toward the left and right inner working sides, respectively. 2, 3, and a pair of left and right main triggers located in the center and having trigger claws 4a, 5a protruding toward the left and right outer action sides so as to face the main triggers 2, 3, respectively. Bodies 4 and 5 are provided. Furthermore, in this embodiment, a conventionally known auxiliary puller is provided on the outside of each of the main pullers 2 and 3 at both the left and right ends, with a puller claw protruding toward the front action side, which acts to pull up the weeds of the stem culm. The auxiliary lifting bodies 6 and 7 are driven by power being transmitted from the pre-processing section 1 side via a chain transmission mechanism built into the chain cover 8. .

Reference numeral 9 denotes an auxiliary lifting body in which the present invention is implemented, and the auxiliary lifting body 9 is arranged between the pair of left and right main lifting bodies 4 and 5 in the central part and between the opposing non-operating parts. However, the case body 10 has vertically long long holes 11a bored in the main lifting bodies 4 and 5.
A bracket 10a, which is integrally extended from the case body 10, is screwed through a tightening bolt 11, so that the bracket 10a can be attached and detached and can be moved vertically. Then, the auxiliary raising body 9
As shown in the figure, when viewed from the side, the lower front action start end side overlaps the sloped upper end position of the grass divider 1a, and from there it slopes so as to be located approximately at the front edge of the main pulling bodies 4 and 5 at an intermediate position in the vertical direction. The rear non-active side is formed to face the non-active side of the main lifting bodies 4 and 5. Further, the main lifting bodies 4 and 5 have lifting guides 12 and 12a so that the lifting claws 4a and 5a protrude on the non-working side opposite to the non-working side of the auxiliary lifting body 9, as well as on the working side. It is formed. In addition, the main lifting bodies 4 and 5 are set so that the lifting claws 4a and 5a, which project toward the non-acting side, are alternately drawn out at a predetermined interval and moved downward. Further, the auxiliary lifting body 9 is provided with lifting guides 13, 13a such that the lifting claws 9a protrude from both the working side and the rear non-working side. Furthermore, the lifting pawls 9a of the auxiliary lifting body 9 are attached to the lifting chain 9b at a pitch that is half the pawl pitch of the main lifting bodies 4 and 5, so as to match the interval at which the lifting pawls 4a and 5a alternately extend. and non-operating side lifting claws 4a, 5 that move downward by the drive of the main lifting bodies 4, 5.
When the non-acting side pulling pawl 9a engages in a cross-shaped manner, the auxiliary pulling member 9 obtains a driving force, and performs the weed pulling operation in conjunction with the operation of the main pulling members 4 and 5. I'm starting to do that.

In the embodiment of the present invention configured as described above, when cutting the stem culm, the pre-processing section 1 is used.
The main pulling bodies 2, 3, 4, and 5 provided in the main pulling bodies 2, 3, 4, and 5 are used to raise the stem culm, and the auxiliary lifting bodies 6 and 7 provided on both left and right sides, as well as the auxiliary lifting body 9 located in the center.
Particularly in the present invention, the central auxiliary pulling body 9 is driven by obtaining the driving force from the main pulling bodies 4 and 5 adjacent to the left and right. That will happen.

That is, in the auxiliary lifting body 9, the lifting claw 9a projects also on the rear non-working side, and the lifting claws 4a and 5a of the left and right main lifting bodies 4 and 5 also protrude from the auxiliary lifting body 9 on the non-working side. The pitch of the lifting pawl 9a of the auxiliary lifting body 9 is the same as that of the lifting pawl 4 of the main lifting bodies 4 and 5.
A lifting pawl 4 that is half the pitch of a and 5a and protrudes from each main lifting body 4 and 5 toward the non-acting side.
comrades a and 5a are drawn out alternately at a predetermined interval and move downward. The lifting pawls 9a protruding toward the non-operating side of the auxiliary lifting body 9 engage with the lifting pawls 4a and 5a, which are alternately extended and moved downward, and thereby move downward. The driving force from the left and right main lifting bodies 4 and 5 is transmitted to the sliding body 9, and the auxiliary lifting body 9 operates in conjunction with the main lifting bodies 4 and 5.

In this way, in the present invention, the auxiliary raising body 9
This effectively utilizes the lifting claws 4a and 5a on the non-acting side of the main lifting bodies 4 and 5, which conventionally simply moved downward without any action, and sent the main lifting members 4 and 5 downward. Since the main lifting bodies 4 and 5 are driven simultaneously by receiving the driving force from the lifting claws 4a and 5a, there is no need for a dedicated power transmission mechanism as in the past, resulting in a remarkable structure. Not only can this be simplified, but the number of parts can be drastically reduced, making it possible to make the entire device lighter and more compact.

Moreover, since this auxiliary lifting body 9 is driven by receiving the driving force from the main lifting bodies 4 and 5 on both the left and right sides, the load for driving the auxiliary lifting body 9 is applied to both main lifting bodies 4 and 5. Therefore, each main raising body 4,
This results in a smooth lifting operation with almost no effect on Moreover, the auxiliary raising body 9 is
Since the pitch of the lifting pawl 9a is half that of the lifting pawls of the left and right main lifting bodies 4 and 5, the load applied to the lifting pawl 9a is dispersed, and the weeding can be done more reliably and finely. A lifting operation can be performed.

Furthermore, unlike the auxiliary lifting bodies 6 and 7 provided on both the left and right sides, the auxiliary lifting body 9 is not driven by a chain-driven means, so its mounting position can be freely adjusted up and down according to the work conditions. This means that it can be set. Furthermore, since it is completely separated from a complicated transmission means such as a chain transmission, it can be easily removed from the pretreatment section 1 by only an extremely simple one-touch operation of removing the tightening bolt 11 as in this embodiment. This is convenient because it allows quick attachment and detachment operations when necessary.

On the other hand, in the case of the lifting claw 9a, the guide body 1 guided by the lifting guides 13, 13a on the non-acting side
5, the side on which the load is applied during the engagement operation of the pulling claw is set longer than the other side, so the surface pressure of the load that the guide body 15 receives due to the power transmission operation is dispersed and significantly reduced. As a result, it is possible to prevent the lifting pawl 9a from rattling and to ensure smooth operation over a long period of time.

Moreover, since the auxiliary raising body 9 is intended to actively raise and slough the grass between the position where it overlaps the weeding body 1a and the middle part of the main raising bodies 4 and 5, it does not overlap the weeding body 1a. Therefore, the plant side will take over the stem culm that has finally been weeded, and will actively weed further toward the tip side, but the height of the weeding will be the middle part of the main raising bodies 4 and 5. As a result, the weeding from the base of the stem to the middle part of the stem culm, where the stem culms are most intertwined, is at a stage before the main triggering bodies 4 and 5 are triggered. This is actively carried out by the auxiliary lifting body 9, and this is passed on to the main lifting bodies 4 and 5. For this reason, the forced weeding action of the auxiliary raising body 9 on the tip of the head, which has a thin stem culm and is easy to break, is avoided.
As a result, the tip of the ear can be effectively protected and the risk of breakage and damage to the tip can be reliably avoided, and the stem culm can be grown without any damage to the important tip.
Since it is possible to reliably reap stem culms that have been raised in good posture, efficient pretreatment work can be performed.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment, and as shown in FIG. 17, and when an abnormal load is applied to the auxiliary triggering body 9 side, these main triggering bodies 4 , 5 and the auxiliary raising body 9 from being damaged.

[Operation and Effect] In summary, since the present invention is constructed as described above, the auxiliary lifting body disposed between the opposing non-acting sides of the left and right lifting bodies can be used as in the conventional chain transmission, etc. Without using any transmission means, the lower power of the respective lifting claws of the left and right main lifting bodies that move downward on the non-operating side can be directly obtained and driven. Therefore, the complicated, large, and heavy power transmission means conventionally required to drive the auxiliary triggering body is completely unnecessary. Moreover, since this auxiliary lifting body is driven by receiving the driving force of both the main lifting bodies disposed on the left and right, the driving load of the auxiliary lifting body is transferred from the left and right main lifting bodies. The influence on the main lifting body is suppressed as much as possible, and the lifting operation of both the main lifting body and the auxiliary lifting body becomes reliable and smooth. Furthermore, since the pitch of the lifting pawls on the auxiliary lifting body is half the pitch of the lifting pawls on the main lifting body, the lifting load applied to the lifting pawls is dispersed, and the pulling pawls are more reliably tightened. Fine weeding operation can be performed.

In addition, the lower end of the auxiliary puller body overlaps the weeding body provided at the lower front end of the pretreatment section, so that the stem culm, which has been finally divided by the weeding body, can be inherited as it is. Furthermore, the grass will be actively weeded towards the tip of the head,
The height of the weed is set as low as the middle part of the main pulling body, and as a result, the weeding in the part of the plant base where the stem culm is most intertwined is lower than the main pulling body. This is done actively at the stage before it is triggered, but the position is up to the middle position of the main trigger, and the auxiliary trigger is used for the tips of the tips of the stems, which are thin and easy to break. Forced weeding can be effectively avoided, and the tip of the panicle can be protected, and the stem culm can be actively cultivated while the tip, which tends to break, is effectively protected by the auxiliary puller. The cut grass is transferred to the main raising body, and the mowing work is carried out in a state where the grass is raised in a good posture, allowing for efficient pre-processing work.

In addition, the auxiliary raising body with such an excellent weeding function is removably attached to the front plate of the left and right raising bodies via the bracket extending from the case body. The attachment/detachment work can be done from the front of the pre-processing section, which simplifies the attachment/detachment work.

[Brief explanation of the drawing]

The drawing shows one embodiment of the pulling device in the stem culm reaper according to the present invention, and shows the first embodiment
The figure is a front view of the preprocessing section, FIG. 2 is a side view of the same as above, FIG. 3 is a partially cutaway front view, FIG. The figure is an enlarged view of the lifting claw, and FIG. 7 is a partially cutaway front view showing another example. In the figure, 1 is a pretreatment part, 4 and 5 are main pulling bodies, 4
a, 5a are raising claws, 9 is an auxiliary raising member, and 9a is a raising claw.

Claims (1)

[Scope of utility model registration request] In the pre-processing section for reaping stem culms, there is a pair of left and right main pullers configured so that pulling claws protrude from either the left or right working side that acts to pull up the stem culms, and from the opposite non-working side. The bodies are arranged such that the non-working sides thereof face each other, and the triggering claws protruding from each main pulling body side toward the non-working side are alternately drawn out at a predetermined interval and move downward. , the pitch of the triggering claws of the auxiliary triggering body, which has triggering claws protruding from the front working side and rear non-working side, respectively, which act to raise the weeds of the stem culm, is the pitch of the triggering claws of the main triggering body. The pitch of the auxiliary triggering body is set in half, and the left and right main triggering members are arranged so that the triggering claws protruding on the non-operating side of the auxiliary triggering members engage with the triggering claws protruding on the non-operating side of the left and right main triggering members. It is arranged between the opposite non-acting sides of the lifting body to drive the auxiliary lifting body.
In addition to receiving the downward force of the lifting claws that are alternately drawn out from the left and right main lifting bodies,
The auxiliary pulling body is arranged in front of the left and right main pulling bodies so that the starting end of the pulling body overlaps the weeding body provided at the lower front end of the pre-processing section, and the terminal end is located at an intermediate part of the main pulling body. A lifting device for a stem and culm reaper, characterized in that the lifting device is detachably attached to the front plate of the left and right main lifting members via a bracket extending from the case body.