JP2001299072A - Opening-closing apparatus for cabin door of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a grain-discharging auger comes to turn and collides against a cabin door opened to the rear open position to cause an accident in a combine harvester equipped with the grain-discharging auger at the rear of a cabin. SOLUTION: A combine harvester 5 is so assembled that a cabin 2 for being sat by an operator is installed on a running body 1 and a grain tank 4 equipped with a grain-discharging auger 3 is mounted at the rear of the cabin 2. The door 6 of the cabin 2 is arranged in such a way as to be openable to both of the side open position (a) enabling the operator to get on and off, and the rear open position (b) enabling maintenance work. An opening-closing apparatus for the cabin door of the combine harvester is so assembled that the grain- discharging auger 3 is restricted from turning in relation to the transfer of the door 6 to the open side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabin door opening / closing device for a combine, and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, a combine has been equipped with a cabin on a vehicle body on which a pilot sits, and is designed to shut off the outside to keep the room airtight, to provide a comfortable environment and to improve work efficiency. I have. In particular, in the cabin room, an air conditioner is installed on the ceiling to maintain an appropriate temperature and humidity, and an audio device is also provided. The cabin door is configured to be able to open to a side position where the operator can get on and off, and a rear position where sufficient maintenance is possible.

[0003] The Glen tank is provided behind the cabin, and is configured to carry out the stored grains to the outside of the machine by a grain discharge auger rotating upward.

[0004]

As described above, the combine of the type equipped with a cabin has a side open position where the operator can get on and off the cabin door and a rear open position where sufficient maintenance can be performed in and around the cabin room. A structure that can be opened and closed is adopted.

In the conventional combine, the cabin door is opened widely (about 180 degrees) behind the normal opening position of the side where the operator gets on and off, and reaches the rear opening position. There was a problem that lacked detection means and lacked safety. In particular, in a configuration in which a grain tank equipped with a grain discharging auger is mounted behind the cabin, the rotating grain discharging auger collides with the cabin door at the rear open position, causing an accident such as breakage. There were challenges.

[0006]

The present invention takes the following technical means in order to solve the above-mentioned conventional problems. That is, the invention of claim 1 provides the traveling vehicle 1
In a combine 5 in which a cabin 2 on which a pilot sits is installed and a Glen tank 4 having a grain discharging auger 3 is mounted on the rear, a door 6 of the cabin 2 is used by the pilot. The grain discharge auger 3 is provided so as to be openable and closable at a side open position a and a rear open position b at which maintenance work can be performed. It is a combine cabin door opening and closing device that is configured as follows.

Next, according to a second aspect of the present invention, the door 6 of the cabin 2 is connected to an opening and closing moving means 7 so as to be openable and closable, and the grain discharging auger 3 provided in the Glen tank 4 comprises The cabin door opening / closing device for a combine according to claim 1, wherein the rotation is restricted in association with the operation of the opening / closing moving means (7).

Next, the invention of claim 3 relates to the grain discharge auger 3 provided in the Glen tank 4 when the door 6 of the cabin 2 moves to the open side beyond the preset position. The cabin door opening / closing device for a combine according to claim 1 or 2, wherein the rotation is restricted.

Next, the invention according to claim 4 is characterized in that the sensor 8 for detecting the operation of the door 6 of the cabin 2 or the opening / closing moving means 7 of the door 6 can be operated in a state where detection is impossible. A cabin door opening / closing device for a combine according to claim 3.

[0010]

The present invention is configured as described above.
When the cabin door is opened to the rear open position, the open position is detected and the safety is extremely enhanced. Furthermore,
When the cabin door is opened to the rear open position, the turning range of the grain discharge auger is regulated (checked). Therefore, the grain discharging auger does not collide with the door during turning and safely performs cleaning and maintenance work of various parts of the machine. There are features that can be.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. First, as shown in FIGS. 4 and 5 of the accompanying drawings, the combine 5 has a threshing device 10 mounted on the traveling vehicle body 1, a cutting pretreatment device 11 is provided in front of the threshing device 10, and a crawler is mounted on the grounding side. 12 are equipped.
Then, the combine 5 removes the cereal stalks cut by the reaping device constituting the front cutting pre-processing device 11 by the cereal culm transport device 13 of the pre-cutting processing device 11 to the threshing device 1.
0 and supply. In the drawings, 14 is a weeding rod, and 15 is a grain stem raising device.

Next, the cabin 2 has a machine frame member 16 serving as a skeleton thereof made of a frame made of an aluminum material, which is a light metal. It is installed on the right side of the section (the right side of the above-described grain culm conveying device 13), and as is well known in the art, an operator is seated on the traveling vehicle body 1 and each mounted working machine (threshing device 1).
0, an operating lever for operating the pre-cutting device 11) is arranged in a concentrated manner. Furthermore, although not specifically shown, the cabin 2 room is equipped with an air conditioner at a ceiling portion, and a blowout grill (blowing cool / warm air from the air conditioner) is arranged side by side at a central position on the ceiling portion. The operation panel, audio equipment, room lamp, etc. of the air conditioner are arranged in the upper left part on the front side, and the inside air filter (filter for sucking indoor air to the air conditioner side) is provided in the rear position. ing.

It should be noted that the left and right sides in the present specification are all described based on the state of the traveling vehicle body 1 as viewed in the forward direction. As described above, in the cabin 2 of the embodiment, the machine frame member 16 is made of an aluminum frame, and the other main parts are made of a synthetic resin. It is configured to aim for.

Next, as shown in FIGS. 5 and 7, the cabin 2 is provided with a door 6 (hereinafter, referred to as a "cabin door 6") with a hinge 17 provided on the rear right side as a pivotal connection d. The pivot portion d is used as a rotation fulcrum to be freely rotatable outward, and the front side is opened and closed so that the operator can get on and off. Then, as shown in the operation diagram of FIG. 6, the cabin door 6 has a position opened about 60 degrees with a position closed on the cabin 2 side as a reference position, and a side opening position a (a virtual line in FIG. 6). A position opened by about 180 degrees from the reference position further rearward from that position is referred to as a rear open position b (see a solid line position in FIGS. 6 and 7), and the damper 18 and the rotating arm 19 (see FIG. 6 and FIG. 7). (Corresponding to the "opening / closing moving means 7").

Hereinafter, the opening / closing moving means 7 for the cabin door 6 will be described.
Will be described based on FIGS. 1, 2 and 3. FIG. First, as shown in FIG. 3, the opening / closing moving means 7 includes a mounting board 21 fixed to the upper machine frame member 20 on the side of the cabin door 6 in the cabin 2, a fixed position (locking position) on the mounting board 21. A rotating arm 19 that can be switched to a rotating state, and a damper having an end on the cylinder 18a side attached to the tip of the rotating arm 19 and an end on the piston 18b side connected to the cabin door 6. 18.

As described above, the mounting board 21 corresponds to FIGS.
As shown in (5), an intermediate portion of the rotating arm 19 is pivotally mounted on the base side of the upper machine frame member 20, and a distal end engaging hole 22 of the rotating arm 19 is mounted on the distal end side. The locking projection 23 for freely engaging and disengaging is provided in a suspended state. The rotating arm 19 has a base portion longer than the mounting board 21 to form the operating portion 24. Therefore,
The pivot arm 19 is free when the operation portion 24 is pulled downward, the tip engagement hole 22 is raised upward with the pivot e as a fulcrum, and the pivot arm 19 is disengaged from the locking projection 23. This is a configuration that can be rotated (see a virtual line in FIG. 2) about a fulcrum.

Reference numeral 25 denotes the mounting board 21 and the rotating arm 1.
9 is a buffer member made of a synthetic resin material fixed to the mounting board 19. And the damper-18
As shown in FIG. 1 and described above, the cabin door 6 is interposed between the tip of the rotating arm 19 and the cabin door 6 to open the door 6 by tension.

As described above, the cabin door 6 is provided with the rotating arm.
When the arm 19 is fixed (locked) to the mounting board 21 with the tip locking hole 22 engaged with the locking projection 23, the dam 19 rotates only by the extension length of the damper 18. Open to the side opening position a (see FIG. 1), and as the next stage,
In a rotatable state (from the locking projection 23 to the tip locking hole 2).
2 is disengaged) and turned outward, damper-18
A structure which can be rotated by a length obtained by adding the length of the rotation arm 19 to the extension length of the arm and can be opened by about 180 degrees to the rear open position b (see the solid line position in FIGS. 6 and 7). It has become.

Next, as shown in FIGS. 1 and 2, the sensor 8 (switch) moves the switch box 27 having the detecting portion 26 downward from the intermediate portion of the mounting board 21 and rotates the switch box 27. The mounting plate 28 is fixed to the lower surface of the mounting plate 28 provided at the side of the fixing position of the fixing member 19.
Accordingly, the detection unit 26 is in a state where the rotating arm 19 is locked to the mounting board 21 (when the tip locking hole 22 is engaged with the locking projection 23) (the cabin door 6 is closed). Between the position and the side opening position a).
9. And the contact part 29
As shown in FIG. 2, the detecting device 26 is provided on the side of the rotating arm 19 and presses the detecting unit 26 described above.

As shown in FIG. 2, the stopper 30 is located on the side of the switch box 27 and on the mounting trajectory of the operating portion 24 (rotating arm 19).
8 is secured to the lower surface of the switch box 8 to protect the switch box 27. Then, the rotating arm 19 is moved to the position shown in FIG.
As shown in FIG. 3 and FIG.
And a locking projection 32 provided on the lower surface side of the mounting plate 28.
And holds the rotating position (when the cabin door 6 is at the rear opening position b where the cabin door 6 is fully opened).

Next, as shown in FIG. 5, the Glen tank 4 is provided in the side of the threshing device 10 behind the cabin 2 and stores the grains that have been threshed and sorted by the threshing device 10. It has a configuration. And Glen Tank 4
Is configured so that when a kernel reaches full, an alarm is issued by detection of a full sensor. Furthermore, Glen tank 4
As is widely known from the prior art, the structure is such that the stored grain is transported to the outside by connecting the frying cylinder 35 and the grain discharging auger-3.

As shown in FIG. 5, the grain discharge auger 3 includes a swing control motor 36, a swing drive gear 37, and a swing gear 38 for selecting and positioning a grain discharge position. And a lifting cylinder (not shown) are provided. And grain discharge auger 3
In the case of the embodiment, when the sensor 8 rotates the cabin door 6 to the rear open position b side after the side open position a, the sensor 8 detects the position and regulates the turning control motor 36. It has a configuration. Therefore, the grain discharge auger 3 is shown in FIG.
As shown in FIG. 7, when the cabin door 6 reaches the rear open position b and in the movement path leading to the rear open position b, the rotation is restricted and the cabin door 6 turns within a range avoiding the cabin door 6. The collision with the door 6 can be avoided beforehand.

The switch box 27 is configured so that the function of the sensor 8 can be interrupted by removing the connected harness from the coupler in the cabin 2. In the case of this embodiment, the sensor 8 has a configuration in which the above-mentioned coupler is provided in the cabin 2 chamber so that the operator can easily perform maintenance such as inspection and repair.

Next, the operation will be described. First, in the combine operation, the operator is seated on the seat of the cabin 2 and starts the engine to prepare for the mowing and threshing work. On the other hand, the operator arranged on the upper left of the ceiling portion By operating the dials and switches on the panel, the temperature inside the cabin 2 is set to a desired temperature. Then, the air-conditioning equipment starts the air-conditioning action based on the operation signal of the connected control mechanism, and uses the chlorofluorocarbon gas and hot water circulated through the gas pipe and the hot water pipe to perform the air-conditioning action by cooling and heating. To start.

The interior of the cabin 2 is kept air-tight with the outside air and is controlled by an air conditioner to a set temperature.
(Hot / cold air) is blown out from the blow-out grill, while the indoor air is sucked from the rear inside-air grille and circulated, making it possible to work comfortably in a state where it is kept clean and at an appropriate temperature. it can.

The combine 5 cuts the culm of the field while moving forward by the pre-cutting device 11 and conveys it upward and backward by the cereal culm conveying device 13 to remove the culm.
To continuously perform harvesting and threshing work. Then, the threshed and sorted kernels are transported to and stored in the Glen tank 4 by the first threshing device of the threshing device 10.

Next, a case where the inside of the cabin 2 (equipment) is cleaned or maintained after the cutting and threshing operation as described above is interrupted or after the operation is completed will be described. First, in the cabin door 6 shown in the embodiment, in the opening / closing movement means 7 shown in FIGS. 1 to 3, the rotating arm 19 is locked to the mounting board 21 (the tip locking hole 22 is locked to the locking projection 23). (Engaged state) and open using the tension of the damper 18. Then, the cabin door 6 is
As shown in (5), the hinge 17 reaches the side opening position a with the pivot portion d as a pivot point and stops. Usually cabin door 6
Opens to the side opening position a, so that the operator can get on and off. As shown in FIGS. 1 and 2, the sensor 8 has the detecting unit 26 in contact with the contact portion 29 of the rotating arm 19 while the cabin door 6 is at the position a.
It detects that it is in the normal position.

Next, the rotating arm 19 is grasped by the operation portion 24 at the base and pulled downward to pivot the pivotal attachment e as a fulcrum.
When the second side is lifted up and removed from the locking projection 23 of the mounting board 21, the front end side becomes free, and pivots about the pivot e (see the phantom line in FIG. 2). Then, as shown by the solid line in FIG. 6, the cabin door 6 opens wide by the amount of the extension of the damper 18 plus the length of the pivot arm 19, and moves to the rear open position b. (See FIGS. 6 and 7).

As described above, when the cabin door 6 is opened by about 180 degrees and reaches the rear open position b as shown by the solid line in FIGS. 6 and 7, the sensor 8 detects that the contact portion 29 has already detected the contact portion 29. 26 is detected, and a control signal is output to the turning control motor 36 (output via a controller (not shown)) to regulate the turning operation of the grain discharge auger 3. Will be. In this case, the grain discharge auger 3 is
In many cases, adjustment or test turning is performed instead of actual work, but turning can be performed safely.

As described above in the embodiment of the present invention,
The grain discharging auger 3 is a means for opening and closing the cabin door 6.
When the door 6 starts moving to the opening side beyond a preset position, the sensor 8 detects the opening operation and restricts the rotation. Is done. In the present invention, since the cabin door 6 is wide and wide open to the rear open position b, cleaning and maintenance can be easily performed, while preventing collision with the grain discharge auger 3 having a swirling range in the vicinity. As a result, a highly safe device can be provided.

Another Embodiment 1 Next, another embodiment 1 will be described with reference to FIGS. First, as shown in FIG. 8, the pilot seat 40 is
The device is mounted above the engine mounted on the vehicle 1 so that the operator can get on and off from the right side in the traveling direction. And
The operation panels 42 and the operation levers 43 are three-dimensionally arranged in a concentrated manner in an operation box 44 which surrounds the control seat 40 in an L-shape from the front side and the left side, so as to facilitate monitoring and operation. I have. The operation box 44 has wiring and an operation interlocking mechanism inside. Outside the operation box 44 is a grain stem raising device 45, a reaper 4 from the front position to the side position.
6. The grain stalk transporting device 47 is provided so that grain stalks can be cut and transported. 48 is a threshing device.

As shown in FIG. 10, the silencing member (silencer) 49 has a sponge material 50 (for example, a cam flex sponge material) disposed inside and a resin sheet disposed outside. 51 (for example, a PVC material) are overlapped to be integrally formed. As shown in FIGS. 8 and 9 (see the phantom line), the noise reduction member 49 having such a configuration is provided by hanging from the top inside the operation box 44 (left side) and fixing the lower end portion to the floor surface. I have.

As described above, when the noise reduction member 49 is provided inside the operation box 44, the noise transmitted through the operation box 44 is absorbed and extinguished, and the noise reduction member 49 is provided.
0 operators can be protected from noise. In the case of the embodiment, the control seat 40 is surrounded by the operation box 44, and when the noise reduction member 49 is stretched inside the operation box 44, the mechanical noise caused by the rotation transmission, the raising of the grain stalk, and the work noise caused by the harvesting and transporting operation. And the like can be absorbed to reduce operator fatigue.

As another embodiment, the noise-reducing member 49 is constructed such that the sponge material 50 is sandwiched between the above-described resin sheet 51 and a breathable material such as cloth or net. I do. With this configuration, the noise reduction member 49 is
If the guide grooves and the like of the operation levers 43 are used as closing materials, noise can be absorbed.

Second Embodiment Next, a second embodiment will be described with reference to FIGS. First, the capacitor box 55 includes the combine 5
In this case, as shown in FIG. 16, a condenser 56 is mounted inside and mounted on the handle cover of the threshing apparatus 10. The condenser 56 has a function of circulating and condensing and liquefying a refrigerant (for example, Freon gas) used in the air conditioning unit when the cabin 2 is equipped with an air conditioner, as is well known in the art. And

The capacitor box 55 is formed by molding a container 55a and a lid 55b with a resin material. Then, the capacitor box 55 is provided as shown in FIG.
As shown in FIG. 1 and FIG. 12, one side of an upper lid 55b is pivotally connected to one side of a lower container 55a to be freely opened and closed, and a lock metal 57 is provided on the other side to lock. Then, as shown in FIG. 12, the lock fitting 57 is hooked on the striker 57b of the lid 55b so as to freely engage and disengage the hook 57a provided on the lower container 55a side, and pulls the lock lever 57c downward to lock. The configuration is conventionally known.

As shown in FIG. 12, the reinforcing plate 58 is attached to the inside of the upper lid 55b together with the striker 57b, and is extended to a position where it reaches the rising surface of the lower container 55a. are doing. With this configuration, the rigidity of the capacitor box 55 is sufficiently maintained.
It has the feature that the locking action can be ensured.

Next, the lock mounting plate 59 is shown in FIG.
As shown in FIG. 3 and FIG. 14, the base portion is connected to the shroud mounting plate 60 inside the container 55a, and the front end portion is extended to the inside of the lock lever 57c of the lock fitting 57 so as to be behind the rising surface of the container 55a. And the above hook 57
a and the support member 57d of the lock lever 57c are fastened and fixed.

As shown in FIG. 15, when the lock bracket A is mounted on the capacitor box C, there is no member corresponding to the reinforcing plate inside the conventional capacitor box C. C may be deformed or distorted, and there is a problem that locking cannot be performed reliably.

As described above, the second embodiment solves the problem of the conventional type and enhances the rigidity by reinforcing the capacitor box 55, particularly the vicinity where the lock fitting 57 is fixed, with a reinforcing member. did. Therefore,
The lock fitting 57 has a feature that it can be securely locked with almost no deformation or distortion of the mounting portion.

[Brief description of the drawings]

FIG. 1 is a plan view showing an operation of a main part according to an embodiment of the present invention.

FIG. 2 is a plan view showing an operation according to an embodiment of the present invention.

FIG. 3 is a side view of one embodiment of the present invention.

FIG. 4 is a front view of a combine according to an embodiment of the present invention.

FIG. 5 is a right side view of the combine according to the embodiment of the present invention.

FIG. 6 is a plan view showing an operation according to an embodiment of the present invention.

FIG. 7 is a side view showing an operation of the embodiment of the present invention.

FIG. 8 is a plan view of a combine according to another embodiment 1 of the present invention.

FIG. 9 is a perspective view of another embodiment 1 of the present invention.

FIG. 10 is a perspective view of another embodiment 1 of the present invention.

FIG. 11 is a plan view of a capacitor box according to a second embodiment of the present invention.

FIG. 12 shows another embodiment 2 of the present invention,
It is an S line sectional view.

FIG. 13 is a plan view of a capacitor box according to another embodiment 2 of the present invention.

FIG. 14 shows another embodiment 2 of the present invention,
It is an S line sectional view.

FIG. 15 is a sectional view of a conventional type, which is another embodiment 2 of the present invention.

FIG. 16 is a side view of a combine according to a second embodiment of the present invention.

[Description of Signs] 1 Running body 2 Cabin 3 Grain discharge auger 4 Glen tank 5 Combine 6 Door (cabin door) 7 Opening / closing moving means 8 Sensor. a Side open position b Rear open position d Pivot of door hinge e Pivot of pivot arm.

Continuation of the front page (72) Inventor Takashi Ochi 1 Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. LE02 LE07 LE09 LE16 LG16 LR02 LR08 LR13 QA22 QC03 RA10 RA28

Claims (4)

[Claims] 1. A combine 5 in which a cabin 2 on which a pilot sits is mounted on a traveling vehicle body 1 and a Glen tank 4 provided with a grain discharge auger 3 is mounted behind the combiner. The door 6 is located at the side opening position a where the operator gets on and off.
And a rear open position b where maintenance work can be performed. The combine is configured such that the grain discharge auger 3 is configured to be restricted from rotating when the door 6 moves to the open side. Cabin door opening and closing device. 2. The door 6 of the cabin 2 is provided with an opening and closing moving means 7.
2. The grain discharging auger 3 provided in the Glen tank 4 is connected to the opening and closing mechanism so that the rotation of the grain discharging auger 3 is restricted in relation to the operation of the opening and closing moving means 7. Cabin door opening and closing device of the combine. 3. The grain discharge auger 3 provided in the Glen tank 4 has a configuration in which when the door 6 of the cabin 2 moves to the opening side beyond a preset position, the rotation is regulated in relation to the door. The cabin door opening / closing device for a combine according to claim 1 or 2. 4. A sensor for detecting an operation of a door 6 of a cabin 2 or an opening / closing movement means 7 of the door 6 so as to be in a state where detection is impossible.
A cabin door opening and closing device for a combine according to any one of the above.