JP3366828B2 - Combine grain discharge cylinder structure - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a grain discharging cylinder structure of a combine.

[0002]

2. Description of the Related Art Conventionally, a horizontal discharge cylinder connected to the upper end of a vertical discharge cylinder is horizontally swung in a Glen tank, and is vertically tiltable to discharge grains in the Glen tank. In the grain discharging structure, the horizontal discharging cylinder is the first
It is composed of a discharge pipe and a second discharge pipe, and a second discharge pipe is formed for the first discharge pipe.
The rotation switching operation is performed between the storage posture in which the discharge cylinder is folded by the discharge lever and the extended work posture.

[0003]

However, the discharge lever of the grain discharge cylinder structure of the combine according to the above-mentioned conventional structure is as follows.
The switching lever is
Only a fixture for fixing to the machine body or the first discharge cylinder is provided. Therefore, when the second discharge cylinder travels in the working posture, the switching lever may be dislocated from the lever receiving portion due to vibration of the machine body or the like and may collide with a cabin or the like located laterally to cause damage or noise. .

[0004]

The present invention, there is provided a means for solving], in order to solve the traditional problems, folding retractable discharge auger
The Glen tank 3 equipped with 2 is mounted on the traveling work machine 1k,
The discharge auger 2 is provided with a vertical discharge cylinder 20 and the vertical discharge cylinder 20.
A first discharge cylinder 22 as a horizontal discharge cylinder connected to the
By the second discharge cylinder 23 that is flexibly connected to the discharge cylinder 22,
The second discharge cylinder 23 is pivotally supported on the second discharge cylinder 23.
Work posture extended by the switching lever 55
In combine A that switches to a folded storage posture ,
One fixture 6 is provided on the first discharge cylinder 22, and one
When the second discharge tube 23 is in the working position by the fixing tool 6 of
When the replacement lever 55 and the second discharge cylinder 23 are in the retracted posture,
The changeover lever 55 is supported, and the changeover lever 5 is further supported.
5 when the second discharge cylinder 23 is in the working posture.
2 and supports when the second discharge cylinder 23 is in the retracted posture.
Is fixed in the direction intersecting the discharge auger 2.
There is.

Furthermore, the fixture 6, the first discharge tube 2
Between the fixing plate 60 provided with the fixing groove 60a and the fixing plate 60 rotatably supported by the fixing plate 60.
In a hook portion 63 for fixing the switching lever 55, the fluorinated
And is bent to the side at the tip of the hook portion 63, and
A holding part for holding the switching lever 55 between the fixed plate 60 and the fixed plate 60.
It is composed of 65 and. In addition, the switching lever 55,
Distribute along the lower surface of the first discharge cylinder 22 and the second discharge cylinder 23.
is doing.

Further, a gas spring 51 is provided between the first discharge cylinder 22 and the second discharge cylinder 23, and the second discharge cylinder 2 is provided .
3 is configured to be urged to rotate when extended .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. A is a control unit 1a on the side of the cut land (right side) of a traveling body 1k having a crawler type traveling device.
Is covered with a cabin 1, and a grain tank 3 having a foldable and retractable grain discharge cylinder (discharge auger) 2 is mounted, and a reaper 4 and a threshing unit 4a are arranged by a well-known configuration. This is a combine in which a cutter 4b for cutting culms is provided at the rear part.

The grain discharge cylinder 2 is a vertical discharge cylinder 20 standing upright in the vertical direction of the machine body along the Glen tank 3 at the rear of the grain tank 3, and a joint joint section above the vertical discharge cylinder 20. A first discharge cylinder 22 serving as a horizontal discharge cylinder connected via 21 and a folding mechanism 5 for the first discharge cylinder 22.
It is configured by the second discharge tube 23 that is flexibly connected via the.

The vertical discharge cylinder 20 is covered with a cover body 30 which is opened and closed between the grain tank 3 and the cutter 4b on the outer surface of the combine on the side of the cut land. Inside the cover body 30, a lever guide 31 provided on a support frame that rotatably supports the cutter 4b erected from the machine frame is swingably provided in the threshing section 4a. An operating lever 40 is provided to adjust and operate a sorting adjustment mechanism (not shown) of the swing sorting body from outside the machine (FIG. 3-B).

In the folding mechanism 5, the second discharge cylinder 2 is attached to the bracket 24 provided at the connecting portion of the second discharge cylinder 23.
One side of the base portion of 3 is rotatably connected by a support shaft (rotation fulcrum) 50, and gas springs (expansion / contraction urging supports) are attached to mounting pins 22a and 23a erected on the upper portions of both cylinders 22 and 23. 51 is attached, and the lock member 5 is attached to the joint end of both cylinders.
A lock tool 52 having a lock lever 52b on 2a and an engagement piece 53 that can be engaged and disengaged with the lock member 52a are separately attached. A mounting shaft 55a is provided in the middle of the second discharge cylinder 23, and the cabin 1 is mounted through the mounting shaft 55a.
A switching lever 55, which can be operated by extending and grasping a hand from the window 1b, is attached so as to be rotatable horizontally and vertically.

The switching lever 55 is provided below the first discharge cylinder 22 and the second discharge cylinder 23, and the grip 55b is bent downward as shown in FIG. The user can easily push and pull by simply reaching out from 1b.
In addition, 29 shown in FIG. 4 is a receiving tool for stably receiving and supporting the second discharge cylinder 23 in the storage posture.

The fixing portion 6 for switching and fixing the switching lever 55 between the working posture shown by the solid line in FIG. 4 and the storage posture shown by the chain line is the switching lever in both postures shown in FIGS. 6 to 7. It is configured such that 55 can be switched and fixed. That is, the fixing portion 6 includes a fixing plate 60 having a fixing groove 60a vertically extending downward on the side surface of the cabin 1 of the first discharge cylinder 22, and the fixing shaft 60 is attached to the fixing plate 60 (FIG. 6).
The fixing member 62 is composed of a fixing piece 62b with a lever 62a, which is rotatably pivoted via 1.

The fixing portion 62 forms a hook portion 63 in which the fixing piece 62b is formed in a hook shape to form a switching lever 55.
As shown in FIG. 6 ( A ) when the first discharge tube 22 is in the retracted posture, it can be clamped and fixed between itself and the fixing groove 60a, and the tip of the hook portion 63 is bent laterally to the clamp portion. 65 is formed, and the switching lever 55 in the working posture of the first discharge cylinder 22 can be clamped and fixed between the base portion and the fixing plate 60.

In the grain discharging structure configured as described above, when the combine A is traveling and when the fuselage is retracted, the second discharging cylinder 23 is set to the first discharging cylinder 23 as shown by the chain line in FIGS. 1 and 4.
It is performed in a retracted posture that is folded to the side of the discharge tube 22.
At this time, the switching lever 55 is properly supported in the chain line state of FIG. 4 by sandwiching and fixing the fixture 6 shown in FIGS. 5 and 6. In addition, when discharging the grain filled in the Glen tank 3 due to the combine work, the worker should
The locking tool 52 is operated by operating the fixing tool 6 and the switching lever 55 from the window 1b of FIG.
After fixing (FIG. 4) to the engagement piece 53, a turning and erecting device (not shown) is operated to wait for the extended horizontal discharge cylinder including the first discharge cylinder 22 and the second discharge cylinder 23 on the road. The grain carrier in the grain carrier is erected and swung to move the grain in the grain tank 3 through the vertical discharge cylinder 20 and the horizontal discharge cylinder in the grain carrier's storage unit. Is to be supplied to.

When switching the storage posture of the second discharge cylinder 23 from the storage posture to the working posture, since the switching lever 55 and the fixture 6 are provided on the lower side surface of the horizontal discharge cylinder, the operation from inside the cabin 1 is impossible. Easily without any posture
And it can be performed by a simple operation. That is,
When the switching lever 55 is released by rotating the fixation of the fixture 6 in the direction opposite to the arrow of FIG. 6 (A) and holding the grip 55b to push in the direction of the arrow in FIG. An initial horizontal rotation operation can be performed around the support shaft 50, and the middle rotation in which the mounting shaft 55a of FIG. 5 crosses the support shaft 50 as a fulcrum is smoothly performed by the bias of the gas spring 51. The latter rotation can be surely performed by pulling the switching lever 55, and the second discharge cylinder 23 can be easily extended with a small force.
2 fixes the work posture.

Next, after the switching lever 55 is fixed by the sandwiching portion 65 of the fixture 6 as shown in FIG. 7, the grain discharging operation can be efficiently performed as described above. In this way, the switching lever 55 can be fixed to both postures by one fixing tool 6, and therefore the operation is easy at the same place. In addition, there is an advantage that waste of manufacturing the individual fixtures 6 can be eliminated and the structure can be manufactured inexpensively with a simple structure.

It should be noted that the gas spring 51, as shown in FIG. 4, is used for the second discharge cylinder 23 when the work posture of the second discharge cylinder 23 is switched.
Since the rotation of the cylinder 23 to the work posture is assisted, the second discharge cylinder 23 can be efficiently switched to the work posture, and due to the rotation inertia force when the second discharge cylinder 23 is received and joined to the catch 29 when stored. Although the recoil can be satisfactorily buffered, the gas spring 51 is not limited to the gas spring and may be constituted by other means.

[0018]

[Effects of the Invention] According to the grain discharge cylinder structure of the combine of the present invention described above, the switching operation for switching the second discharge cylinder to the storage posture and the working posture with respect to the first discharge cylinder is performed. > Since the lever is positioned and fixed by one fixing tool in both the postures described above, the fixing and releasing operations can be easily performed at the same place, and the structure of the fixing tool is simple and inexpensive to manufacture. be able to.

Further, the fixing tool can surely fix the switching levers having different postures with the fixing plate by one fixing piece, and the operability can be improved. The rotation operation of the second discharge cylinder is small because the switching lever provided on the lower surface of the horizontal discharge cylinder can be easily performed from inside the cabin, and the second discharge cylinder is rotationally biased by the expansion / contraction biasing support. You can do it smoothly with your strength.

Further, when the second discharge cylinder is switched to the work posture, the second discharge cylinder is rotated to the work posture, and shocks during storage are suppressed, so that the second discharge cylinder can be properly switched. There are advantages such as being able to.

[Brief description of drawings]

FIG. 1 is a perspective view of a combine having an operation lever structure of the present invention.

FIG. 2 is a plan view showing a state in which a second discharge barrel of the combine in FIG. 1 is extended.

3 (A) is a rear perspective view showing the main part of FIG. 1, (B).
[Fig. 3] is a perspective view showing a configuration of an operation lever.

FIG. 4 is a plan view showing a main part of a horizontal discharge cylinder.

FIG. 5 is a side view of FIG.

FIG. 6A is a state diagram of the fixture 6 in a storage posture, and FIG. 6B is a side view of FIG.

FIG. 7A is a state diagram of the fixture 6 in a working posture, and FIG. 7B is a side view of FIG.

[Explanation of symbols]

A combine 1 cabin 1k traveling machine 2 grain discharge cylinder (discharge auger) 3 grain tank 4 cutting section 4a threshing section 5 folding mechanism 6 fixture 20 Vertical Discharge Cylinder 22 First Discharge Cylinder 23 Second Discharge Cylinder 50 Support Shaft 51 Expansion / contraction Energizing Support 55 Switching Lever 60 Fixing Plate 62 Fixing Member 62b Fixing Piece 63 Hook Part 65 Clamping Part

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01F 12/46

Claims (4)

(57) [Claims] 1. A discharge auger 2 which can be folded and stored.
The Glen tank 3 equipped with the
The discharge auger 2 is attached to the vertical discharge cylinder 20 and the vertical discharge cylinder 20.
The first discharge cylinder 22 as a connected horizontal discharge cylinder and the first discharge cylinder 22
By the second discharge cylinder 23 that is flexibly connected to the discharge cylinder 22,
And the second discharge cylinder 23 is pivotally supported on the second discharge cylinder 23.
Work posture extended by the switching lever 55
In the combine A that is switched to the stored posture, one fixing tool 6 is provided on the first discharge cylinder 22.
When the second discharge tube 23 is in the working position by the fixing tool 6 of
When the replacement lever 55 and the second discharge cylinder 23 are in the retracted posture,
The changeover lever 55 is supported, and the changeover lever 5 is further supported.
5 when the second discharge cylinder 23 is in the working posture.
2 and supports when the second discharge cylinder 23 is in the retracted posture.
Is a combine grain discharge cylinder structure that is fixed in a direction intersecting with the discharge auger 2 . 2. The fixing tool 6 is provided between a fixing plate 60 having a fixing groove 60a provided in the first discharge cylinder 22 and a fixing groove 60a pivotally supported by the fixing plate 60. Switching
Hook portion 63 for fixing the lever 55 , and the hook portion 63
At the tip of the plate and bent to the side, and the fixing plate 6
A holding part 65 for holding the switching lever 55 between 0 and
The grain discharging cylinder structure of the combine according to claim 1, which comprises: 3. The switching lever 55, the first discharge tube 2
The first and second discharge tubes 23 are arranged along the lower side surface of the second discharge tube 23.
Or the grain discharge cylinder structure of the combine according to 2. 4. The first discharge tube 22 a gas spring 51 provided between the second discharge tube 23, claim 1 comprising configured to bias the rotation of the elongation at the second discharge tube 23 Two
Alternatively, the grain discharge cylinder structure of the combine according to 3 above.