JPH0441807Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device for attaching and detaching a net frame in a threshing machine, which allows the net frame to be attached to, detached from, and locked at the lower part of a handling chamber.

[Conventional technology]

Conventionally, in a threshing machine, a net frame curved in an arc is removably fitted from one end to the lower part of a handling chamber that has a handling barrel cover that can be opened and closed upward.
Generally, a large number of bolts are used to secure and remove the mesh frame, so it takes time to install and remove them.
In addition, when pulling out and removing the fitted screen frame, there was a problem that it was hard and difficult to remove because the user had to put his/her hand inside the handling chamber.

[Problem that the invention attempts to solve]

This invention solves that problem,
The screen frame can be quickly and easily attached and detached, the screen frame can be reliably and well locked without requiring bolt operation, and the screen frame has a simple structure and can be suitably implemented.

[Means for solving problems]

Therefore, in the present invention, an engagement plate having an engagement part is fixed on the outer surface of the rear end of the mesh frame, and the engagement plate is attached to the tip of a lever that can be operated from the outside of the machine body and is fixedly pivoted. It is constructed by forming a plurality of engaged parts that can be engaged with each other.

[Effect]

Therefore, the mesh frame can be reliably locked by the engagement between the claw part of the lever and the engagement hole of the engagement plate,
When the lever is rotated with the claws engaged with the engagement holes, the rear end of the screen frame can be pushed out so that it protrudes a little beyond the handling chamber, and the screen frame can be removed by holding the rear end with your hand. The entire screen can be easily pulled out and removed, and if the screen frame is fully inserted into the lower part of the handling chamber from the tip and the lever is rotated, the engaged part and the engaging part will engage to further remove the screen. If you push the frame in and fix the lever as it is, you will be able to attach and lock the net frame.

〔Example〕 Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a side view of the combine harvester, in which a reaping section C is installed in front of a threshing machine B mounted on a machine body supported by crawlers 10.
An underchain type feed chain 12 is constructed on the outside of a handling chamber 2 in which a feed chain 1 is installed. The cover 1 is mounted on the outside of the feed chain 12 and is pivotably mounted so that it can be opened and closed.
5 is stretched, and a swing sorting body 16 is installed on the lower side of the handling chamber 2.
It is constructed in the same way as the conventional structure.

Similar to the conventional structure, a partition plate 17 is installed at the lower part of the handling chamber 2 near the exit side, and both engaging plates 3 each having a hole 3a are protruded from the inner side of the handling chamber 2.
A support frame 18 is installed horizontally between the partition plate 17 on the lower side of the handling cylinder 11 and the inlet side, and the partition plate 1 is placed on the inner side of the side plate 19 on the feed chain 12 side.
A protruding pin 5 is provided protruding from a portion 7, and an opening 20 is formed near the top of the side plate 19.
A support plate 21 is provided to protrude inward from the side of the feed chain 12.

Further, the support plate 21 is provided with an opening 2 of the cover 15.
A lever 8, which can be operated by hand through the opening 20, is pivoted via a support shaft 23, and the lever 8, which protrudes through the opening 20 toward the handling chamber 2, has three teeth shaped on a concentric circle centered on the support shaft 23 at the tip of the lever 8. The hole 2 of the lever 8 is formed with a claw part 9, and when one side of the lever 8 is inclined, the hole 2 of the lever 8 is
A locking pin 26 is fitted into the hole 25 of the support plate 21 and the support plate 21 so that the lock pin 26 can be locked, and a stopper 27 is fixed to the support plate 21 above the support shaft 23.

Similar to the conventional structure, a crimp net A is stretched over the net frame A fitted in the lower part of the handling chamber 2 to form an arcuate side surface.
A hook plate 29 that can be engaged with the protruding pin 5 is fixed on the side near the tip of the plate body 28 stretched on the other end side of the mesh frame A. A pin 33 that can be fitted into an engagement groove 32 formed on the upper end side of the partition plate 17 is fixed to a plate part 31 that is connected to the inner side near the end of the plate body 28 and serves as the rear end part 30 of the net frame A. An engagement plate 7 having a U-shaped side surface and having two engagement holes 6 capable of engaging with the claw portions 9 of the lever 8 is fixed on the outer surface of the plate body 28 near the pin 33. .

Therefore, when the net frame A is attached, both pointed pins 4 fit into both engaging plates 3, as shown in FIGS. 1, 3, and 4, and the net frame A
The intermediate lower part of is joined to the support frame 18, and the hook plate 2
9 engages with the protruding pin 5, the claw portion 9 of the lever 8 locked by the lock pin 26 engages with the engagement hole 6, the pin 33 fits into the engagement groove 32, and the screen frame A is locked. It turns out.

To take out the crimp net a, open the handling barrel cover 1 as shown by the imaginary line in Fig. 1, remove the lock pin 26, and then rotate the lever 8 downward as shown by the arrow A. , the mesh frame A is pulled out in the direction of arrow B by the engagement of each rotating claw part 9 with the engagement hole 6, and the fifth
As shown in the figure, with the last claw part 9 in contact with the corner of the engagement plate 7, the pointed pin 4 is
is detached and separated from the engagement plate 3, and the rear end portion 30 is pushed upward by that much as shown by L in FIG. Then, the entire mesh frame A can be removed.

In addition, when attaching the net frame A, fit the net frame A into the lower side of the handling barrel 11 with the tip pin 4 side first, join it above the support frame 18, and attach the tip pin 4 to the hook plate. When lever 8 is lifted in the direction of reverse arrow A in the state before 29 is engaged, each claw portion 9 engages with engagement hole 6 and pushes down net frame A.
Therefore, the tip pin 4 is fitted into the engagement plate 3, and the hook plate 29 is inserted into the protrusion pin 5, and the pin 3 is inserted into the engagement plate 3.
3 are respectively engaged with the engagement grooves 32,
When the lock pin 26 is inserted into the lever 8 and the support plate 21, the net frame A can be attached. In the embodiment of the present invention, a structure has been described in which the engaging hole 6 is used as an example of the engaging part, and the claw part 9 is used as an example of the engaged part, but the present invention is not limited to this. In addition, if the screen frame is configured to have a locking part at the tip and middle part that is released by moving the screen frame in the extraction direction, it will be easier to operate only by operating the lever at the rear end of the screen frame. This means that the mesh frame can be removed.

[Effect of idea]

As described above, in the present invention, the mesh frame A can be reliably locked and attached by the engagement between the engaged portion 9 of the lever 8 and the engaging portion 6 of the engaging plate 7, and the lever 8 When rotated, the rear end of the screen frame A will protrude a little further than the handling chamber 2, and the entire screen frame A can be quickly and easily removed by holding the rear end with your hand. When the frame A is fully inserted from the tip into the lower side of the handling chamber 2 and the lever 8 is rotated, the mesh frame A can be further pushed in by the engagement of the claw portion 9 and the engagement hole 6 to engage each part. This allows the mesh frame A to be quickly and easily attached by fixing the lever 8, and has the advantage that it can be conveniently implemented with a simple structure.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a part of a thresher that is an embodiment of the present invention, Figure 2 is a side view of a combine harvester, Figures 3 and 4 are enlarged views of a part of Figure 1, and Figure 5. and FIG. 6 shows operation explanatory views of FIGS. 3 and 4, respectively. 1... Handling trunk cover, 2... Handling room, A... Net frame,
3...Engagement plate, 4...Point pin, 5...Protrusion pin, 6...Engagement hole, 7...Engagement plate, 8...Lever, 9...Claw portion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A handling chamber 2 having a handling trunk cover 1 that can be opened and closed upwards is constructed by fitting a net frame A curved in an arc in a removable manner from one end in the lower part of the handling chamber 2. In the threshing machine, an engaging plate 7 having an engaging part 6 is fixed on the outer surface of the rear end side of the mesh frame A, and the tip of a lever 8 which can be operated from the outside of the machine body and is fixedly pivoted is fixed to the outer surface of the rear end side of the mesh frame A. A net frame attachment/detachment device characterized in that a plurality of engaged portions 9 are formed to engage with an engaging portion 6. (2) The scope of the utility model registration claim, characterized in that locking portions 4, 29 are provided at the tip and midway portions of the screen frame A, the locking portions 4 and 29 being released by movement of the screen frame A in the extraction direction. The net frame attachment/detachment locking device according to item 1.