JPH041783Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure for attaching a net frame in the threshing section of a combine harvester, in which the net frame is detachably attached below the handling barrel.

[Conventional technology]

Conventionally, a large number of bolts were operated in the threshing section of a combine, which consisted of a half-moon-shaped mesh frame removably installed below the handling barrel with a handling chamber cover that could be opened and closed. The structure requires alignment of the screen frame, making it difficult to attach and remove the screen frame.

[Problems to be solved by the invention] The present invention enables the mesh frame to be quickly and easily attached and removed without requiring bolt operations, and also ensures that the mesh frame will not come off. It is an object of the present invention to provide a device that can be installed well, can be positioned well, and has a simple structure so that it can be suitably implemented.

[Means for solving problems]

Therefore, in the present invention, a protrusion is fixed on the lower surface of the feed chain side end of the mesh frame, and a protrusion is protruded on the tip side that can be removably inserted into the locking piece on the machine body side. The upper edge of the long operation body, which is obliquely disposed so as to be movable toward the feed chain side with a grip portion protruding outward, is formed with a front hook and a rear hook that can be engaged with and detached from the projecting piece and the side plate of the machine body, respectively. It is something.

[Effect]

Therefore, it is possible to open the handling compartment cover and insert or remove the mesh frame from the upper side of the handling trunk. The projecting pieces on the end sides engage with the hooks of the operating body, allowing the net frame to be installed reliably and well.In addition, when removing the screen frame, the hooks can be removed by operating the operating body from the outside and pulling it up. By engaging with the screen frame, the screen frame can be pulled upward a little, and the screen frame can be easily removed by holding the upwardly protruding end of the screen frame.

〔Example〕

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

FIG. 2 shows a side view of the combine, in which the threshing section A is mounted on the machine body supported by both crawlers 12.
A reaping section B is installed in front of the threshing section A, and the threshing section A is
A feed chain 4 is installed in an underchain type at the lower part of the outer side, and an outer cover 13 is installed on the outer side of the feed chain 4. 2 is mounted on a shaft, and one end side of the handling room cover 1, which can cover from the upper part of the handling room 16 to the upper part of the rear of the fuselage, is pivotally attached to the upper inner part of the fuselage via each hinge 17, and the other end of the handling room cover 1 is mounted on a shaft. A pincer culm 18 corresponding to the upper side of the feed chain 4 is installed on the side, a swinging sorting body 19 is extended from below the handling room 16 to the rear of the machine, and a sorting section is installed, similar to the conventional structure. Configure.

3 indicates the entire net frame, which is curved in a semicircle so as to cover the lower half of the handling cylinder 2, and has a plate 3 at the front.
A is formed by stretching a crimp net 3b on the other side, and integrally has a pointed protrusion 7 on its tip side that can be fitted from below into the hole 6a of the locking piece 6 protruding from the back surface of the handling chamber 16. A projecting piece 5 having an L-shaped cross section is fixed to the lower surface of the side of the plate body 3a so that the net frame 3 can move along the lower outer periphery of the handling cylinder 2. When the net frame 3 is attached, the front end 3c of the plate 3a is closer to the feed chain 4 side, and the lower part is supported by the frame 20.

An outlet partition plate 21 is installed below the exit side of the handling chamber 16 in the same manner as in the conventional structure, and support pins 22 are provided protruding from the lower inner side of the outlet partition plate 21, and the side plate of the machine is stretched upright inside the feed chain 4. A long groove 23 in the vertical direction is formed in a part of the outer cover 13 that is diagonally above the support pin 22, and a long groove 24 in the vertical direction is also formed in a part of the outer cover 13 that is diagonally above the long groove 23.
form.

Reference numeral 8 denotes an operating body made of a long and thin plate, which has a long hole 25 formed at its tip side to fit into the support pin 22, a grip portion 8a bent at the other end side, and a handle 8a formed at two places on the middle upper edge. The operating body 8 has a front hook 10 that engages with the projecting piece 5 from below and a rear hook 11 that engages with the upper part of the long groove 23 from below.
is installed diagonally from below the handling chamber 16 through the long groove 23, inside the feed chain 4, and into the long groove 24 so that the grip portion 8a protrudes outward from the outer cover 13, and near the outside of the side plate 9. a protruding piece 26 protruding from the side of the operating body 8; and an upper protruding piece 2 of the side plate 9 above the protruding piece 26.
7, a tension spring 28 is connected thereto.

Therefore, when the mesh frame 3 is attached, the first
As shown in the figure and FIG.
The front hook 10 and the rear hook 11 of the operating body 8, which are inserted into the hole 6a and pulled upward by the tension spring 28, are connected to the protrusion 5 of the mesh frame 3 and the long groove 2 of the side plate 9.
By engaging with the upper parts of 3 from below, it is possible to lock the screen frame 3 so that it does not come off.

When removing the screen frame 3, open the handling chamber cover 1 upward as shown in FIGS.
Expand to 8 and push downward as shown by arrow A.
As shown in FIG. 6, the front hook 10 remains engaged with the protrusion 5, but the rear hook 11 comes off the top of the long groove 9. From this state, when the operating body 8 is pulled as shown by the arrow B, , as shown in FIGS. 7 and 8, as the screen frame 3 is pulled out by the front hook 10, the protrusion 7 is separated from the locking piece 6 and the tip 3c at the front end of the screen frame 3 is pulled out. The screen frame 3 will be pulled upward, and by grasping the tip 3c that protrudes upward for easy grip and pulling it upward, the entire screen frame 3 can be removed as shown by the imaginary line in FIG. become.

When installing the screen frame 3, insert the screen frame 3 under the handling barrel 3 from above with the protrusion 7 side facing forward as shown by the imaginary line in FIG. The operating body 8 is inserted into the hole 6a of the locking piece 6, and is inserted so that the rear hook 11 is engaged with the upper part of the long groove 23 and the front hook 10 is engaged with the protruding piece 5.
By pushing in, you can lock the screen frame 3.

[Effect of idea]

In this way, the present invention ensures that the mesh frame 3 does not come off due to the engagement between the protrusion 7 and the locking piece 6, and the hook engagement between the operating body 8 that engages with the side plate 9 of the machine body and the protrusion piece 5. By pulling the operating body 8 which can be gripped from the outside, the protrusion 7 is separated from the engagement plate 6 and the screen frame 3 is moved upward so that it can be easily taken out. As a result, the screen frame 3 can be quickly and easily removed without having to operate bolts as in the conventional method.
This can be done quickly and easily by inserting the projection 7 into the locking plate 6 and engaging the operating body 8 with the hook, and the positioning of the screen frame 3 can also be done reliably and easily. It has the advantage that it can be implemented conveniently with a simple structure.

[Brief explanation of drawings]

Figure 1 is a side sectional view of the main parts of an embodiment of the present invention, Figure 2 is a side view of the combine harvester, and Figure 3 is the second
4 is an enlarged view of a portion of FIG. 1, FIG. 5 is a top view of a portion of FIG. 4, and FIGS. 6 and 7 are operation diagrams of FIG. 4. The explanatory diagram, FIG. 8, is an explanatory diagram of the operation of FIG. 1. 1... Handling room cover, 2... Handling barrel, 3... Net frame,
4... Feed chain, 5... Protrusion piece, 6... Locking piece, 7... Protrusion, 8a... Grip part, 8... Operation body,
9... Side plate, 10... Front hook, 11... Rear hook.

Claims (1)

[Scope of utility model registration request] In the threshing section of a combine, a semicircular mesh frame 3 is removably fitted below a handling barrel 2 on which a handling chamber cover 1 is attached so as to be openable and closable.
A projecting piece 5 is fixed to the lower surface of the end of the mesh frame 3 on the side of the feed chain 4, and a protrusion 7 is provided projecting from the tip side to be removably inserted into a locking piece 6 on the body side,
At the upper edge of the long operating body 8, which is obliquely disposed so as to be movable toward the feed chain 4 side with a grip portion 8a on one end protruding outward, there is a front hook 10 that can be engaged with and detached from the protruding piece 5 and the side plate 9 of the machine body, respectively. and a rear hook 11.