JPH0718262Y2 - Raised case structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to a structure for enabling a front cover of a combine raising case to be detached with one touch.

(B) Prior art The raising device disposed at the front end of the combine harvests the fallen grain culm by rotating the tine upward, and the cutting blade disposed at the rear portion of the harvester cuts the stock. Since the tines are rotated upward in the chain,
Entanglement of grain culms and weeds frequently occurred.

Conventionally, a configuration has been publicly known in which the front cover of the raising case can be detached to remove the entangled straw waste and the like.

For example, it is like the technique described in Japanese Utility Model Publication No. 60-67039 and Japanese Utility Model Publication No. 58-70738.

(C) Problems to be solved by the invention However, in the conventional detachable structure of the cover of the raising case, when fixing with the bolt, it is not possible to easily attach and detach, and in the case of a simple fixing method, There was a problem that it came off naturally due to vibration during work. The present invention solves such a problem of the conventional technology.

(D) Means for solving the problem The present invention eliminates such problems and can be securely fixed,
In order to obtain a raising case that can be attached and detached with one touch, it is configured as follows.

Put the combine raising case back cover 4b and front cover
4a, and at the top of the rear cover 4b, "U" in plan view.
Locking metal fittings that have a left-right protrusion and are formed in a V shape.
35, a horizontal locking pin 35a is provided between the left and right protrusions of the locking metal fitting 35, and the locking pin 35a is fitted to the upper end of the front cover 4a substantially within the width of the locking metal fitting 35. A hook 36 to be fitted is provided, and the hook 36 can be engaged with and disengaged from the locking pin 35a from above, the pin 31 is projected from the lower portion of the rear cover 4b to the front cover 4a side, and the front cover is attached to the rear cover 4b. With the 4a attached, the tip of the pin 31 passes through the pin hole 4d formed in the front cover 4a and is projected to the front surface of the front cover 4a.
An engaging portion 31a is provided at a portion where the pin 31 projects from the front cover 4a.
The engaging lever 31 provided on the front surface of the front cover 4a is engaged with and disengaged from the engaging portion 31a.

(E) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be described based on the structure of the embodiment shown in the accompanying drawings.

1 is a plan view of a raised case of the present invention, FIG. 2 is a sectional view of a lower side of the same, FIG. 3 is a sectional view taken along the line XX in FIG. 2, and FIG. Side sectional view,
FIG. 5 is a perspective view of the same, and FIG. 6 is a side view of the front part of the combine.

The overall configuration will be described with reference to FIG. A mowing frame 1 is projected to the front of the machine body, the mowing frame 1 can be moved up and down by a hydraulic cylinder 2, a grass plate 3 is fixed to the front end of the mowing frame 1, and a rear part of the grass plate 3 is provided. The raising case 4 of the present invention is erected. A cutting blade 5 is arranged at the rear of the raising case 4 on the mowing frame 1, and a lower conveyance device 7 is arranged above it.

The root of the grain culm is inherited from the lower conveying device 6 to the feed chain 9 via the vertical conveying device 8, and the tip portion is conveyed from the upper conveying device 7 to the threshing device to be shredded.

The raising case 4, which is an essential part of the present invention, drives the sprocket 12 arranged above the raising case 4 from the cutting and conveying gear box 11.

As shown in FIG. 1, a chain 15 is wound between the sprocket 12, the idle sprocket 13 and the driven sprocket 14 provided at the lower part of the raising case 4, and the tines 16, 16 ... Are fixed on the chain 15. Pivot at intervals, the tines 16,16
By projecting and rotating upward, the lodging grain culm is caused.

As shown in FIG. 2, the driven sprocket 14 has the sprocket 14a and the pulleys 14b, 14 as shown in the upper half or the lower half.
Sprocket shaft clamped by b'and fixed with bolts 19 and 20
The sprocket shaft 29 is fitted to the rear side of the sprocket shaft 29 and the rear side is covered with a rear surface.
It is fixed with bolts 20 sandwiching 4b and the lower cover 18, and an upper cover 17 is fixed with bolts 19 on the front side.

However, the sprocket 14 is rotatable with respect to the sprocket shaft 29.

Below the upper cover 17, an edge portion 17a having the same shape is provided to match the lower edge 4c of the front cover 4a.
A vibration-proof material 21 made of sponge or the like is attached to the surface of the contact portion with a.

A guide plate 22 is fixedly provided on the rear cover 4b so that the tines 16 that cause the grain culms are projected to the side.

That is, the guide plate 22 has a length from the lower part to the upper part of the raising case 4 to the position 16 'where the tine 16 is housed,
The upper guide plate 22a and the lower guide plate 22b are aligned with each other, and the pillars 23, 23 erected on the rear cover 4b are bolts 24, 24 on top of them.
The outer side portion is opened along the edges of the front cover 4a and the rear cover 4b, the chain 15 is housed between them, and the tine 16 base end surface 16a is abutted and guided.

Then, a vibration-proof material 25 is attached to a portion on the front side of the upper guide plate 22a which comes into contact with the inside of the edge of the front cover 4a, and the lower end of the guide plate 22 is fixed to the upper cover 17 for reinforcement.

An outer cover 26 is fixed to a nut 27 on the edge of the rear cover 4b on the side surface opposite to the guide plate 22.
An antivibration material 28 is attached to a portion of the front side of the front cover 4a which is in contact with the edge.

Further, as shown in FIGS. 4 and 5, a locking metal fitting 35 having a U-shape in a plan view and provided with left and right protruding portions toward the front is fixed to the upper end of the rear cover 4b. A horizontal locking pin 35a is horizontally provided between the locking fittings 35. The locking metal fitting 35
The hook 36 of a length that engages with the locking pin 35a within substantially the width of
Is fixed to the upper end of the front cover 4a so that the hook 36 can be engaged and disengaged only upward.

Then, the base 30 is fixedly provided at the center of the lower portion, the pin 31 is provided upright on the base 30, and the locking portion 31a is provided on the upper portion of the pin 31. On the other hand, a pin hole 4d is formed on the front cover 4a at a position matching the pin 31, and a lever mount 32 is bolted below the pin hole 4d.

A shaft hole 32a is opened on the lever mounting base 32, a rotating shaft 34b of a locking lever 34 is inserted into the shaft hole 32a, and a grip portion 34a is provided outside the rotating shaft 34b. The tip inside 32 is inserted into the shaft hole of the front cover 4a, and the locking portion 34c is fixed to the shaft of the tip. Then, by rotating the grip portion 34a, the pin 31 and the locking portion 34c can be disengaged.

(F) Operation of the device With such a configuration, the hook 36 provided on the upper end of the front cover 4a is locked to the horizontal locking pin 35a of the locking metal fitting 35 to project on the rear cover 4b. 31, front cover 4a
Of the locking lever 34 by protruding through the pin hole 4d of
By rotating 34a to lock the locking portion 34c to the locking portion 31a of the pin 31, the edge portion of the front cover 4a, the edge of the upper cover 17,
The upper surface of the guide plate 22 and the upper surface of the outer cover 26 are brought into contact with each other, and the front cover 4a is fixed to the rear cover 4b.

On the contrary, the front cover 4a can be removed by releasing the locking lever 34 from the pin 31 and shifting it upward while lifting it.

That is, the upper end of the rear surface cover 4b is provided with a locking metal fitting 35 having left and right protruding portions protruding in a U-shape toward the front.
A horizontal locking pin is provided between the left and right protrusions of the locking metal fitting 35.
35a is installed, and a hook 36 that fits into the locking pin 35a within the width of the locking metal fitting 35 is provided at the upper end of the front cover 4a, and the hook 36 can be engaged with and disengaged from the locking pin 35a from above. is doing.

A pin 31 projects from the lower portion of the rear cover 4b toward the front cover 4a, and the front end of the pin 31 is formed in the front cover 4a with the front cover 4a attached to the rear cover 4b.
It is possible to project through to the front surface of the front cover 4a. Locking portion of the portion where the pin 31 projects from the front cover 4a
The locking lever 34 provided on the front surface of the front cover 4a is configured to be disengaged from the 31a.

(G) Effect of the Invention With the above-mentioned configuration, the present invention has the following effects.

First, since the upper end of the front cover of the raising case is locked to the upper end of the rear cover by a hook from above and the lower part is engaged with the pin by the locking lever, the upper part is the locking fitting 35 and the hook 36.
This allows the upper and lower positions to be fixed so that there is no possibility that it will come off downwards, and the lower pin 31 and locking lever
Since the movement in the left-right direction is locked by the 34, the front cover 4a can be firmly fixed to the rear cover 4b by a simple fastening method at a minimum of two places.

Second, the upper part is locked by the horizontally arranged locking pin 35a by the hook 36, and the lower part of the front cover 4a is pivoted downward to bring it closer to the rear cover 4b. Comes out after passing through the pin hole 4d, so lock pin 35a at the top.
Since the vertical position and the left and right positions are determined by the hook and the hook 36, the pin 31 and the pin hole 4d are automatically aligned without aligning the pin hole 4d and the pin hole 4d. Is gone.

Third, since the operation up to the engagement by the locking lever 34 can be performed without strongly supporting the front cover 4a with the upper part hooked, the front cover 4a can be held and the lever can be inserted as in the conventional case. The cover can be attached and detached by a simple operation without the need for engaging operation.

[Brief description of drawings]

1 is a plan view of a raised case of the present invention, FIG. 2 is a sectional view of a lower side of the same, FIG. 3 is a sectional view taken along the line XX in FIG. 2, and FIG. Side sectional view,
FIG. 5 is a perspective view of the same, and FIG. 6 is a side view of the front part of the combine. 4 …… Raising case 4a …… Front cover 4b …… Rear cover 31 …… Pin 34 …… Locking lever 35 …… Locking metal 36 …… Hook

Claims (1)

[Scope of utility model registration request] 1. A combine cover raising case is provided with a rear cover 4b.
And the front cover 4a, and on the upper end of the rear cover 4b,
The U-shaped plan view is provided with locking metal fittings 35 provided with left and right protruding parts toward the front, and a horizontal locking pin 35a is provided between the left and right protruding parts of the locking metal fittings 35. Then, a hook 36 that fits into the locking pin 35a within the width of the locking metal fitting 35 is provided at the upper end of the front cover 4a, and the hook 36 is attached to the locking pin 35a from above.
The rear cover 4b has a pin 31 projecting from the lower portion of the rear cover 4b toward the front cover 4a, and the front cover 4a is attached to the rear cover 4b.
4a is made to pass through a pin hole 4d having a hole formed therein and protrudes to the front surface of the front cover 4a, and the pin 31 forms a locking portion 31a at a portion protruding from the front cover 4a. The locking portion 31a has a front cover 4a. A raising case structure characterized by being configured to disengage a locking lever 34 provided on the front surface of the.