JPH059234U - Combine control unit - Google Patents

Abstract

(57) [Summary] [Purpose] To make the combine harvester comfortable and prevent the operator from falling from the control section. [Configuration] A control unit A is supported to be able to move up and down with respect to a body frame 3, and a safety guard 27 is displaceably attached to a working position for closing an entrance C above a step and a retracted position for opening it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a combine for harvesting and threshing work, and more particularly to a safety device for a combine control section.

[0002]

[Prior Art]

 Conventionally, a combine provided with a guard as an armrest close to the lateral side of the cockpit is already known from Japanese Utility Model Laid-Open No. 57-82136.

[0003]

[Problems to be solved by the device]

 In the above-mentioned known one, the guard is provided only in a part corresponding to the cockpit, so it functions as a safety guard when the operator is seated, but the operator does not need to adjust the alignment or monitor the reaping work. When standing up, it will no longer function as a safety guard. In particular, when carrying out mowing work in a standing position, or when the aircraft tilts unexpectedly when the aircraft is taken in and out of the field, the known ones do not provide appropriate protective measures for the operator, so the open and closed boarding There is a risk of the operator falling from the mouth.

In view of the above, in the mowing work state, the control section is provided with a body frame so that the field of view can be prevented from being obstructed by a pretreatment device and the like, and the danger of falling can be prevented so that the body can always be operated in a comfortable posture. The inventors have devised a method in which the upper and lower parts can be integrally lifted up and down and the control section is covered with a cabin. However, in this case, when the cabin door was closed, even if the window was opened, air permeability was poor and the temperature inside the room became high, which necessitated the installation of a cooling device. Therefore, it was found that there was a drawback that the machine was inevitably more expensive than the conventional one. Therefore, a further study was conducted centering on the fact that the control section can be simply moved up and down without being covered by a cabin.However, in order to improve the forward field of view, the control section is much better than the one fixed to a normal aircraft frame. It rises to a very high level, creates a sense of fear from high altitudes, and is still left to operate in a standing position. From the above viewpoints, another improvement has been demanded to obtain a safe and inexpensive control part without the risk of the operator falling from the entrance of the control part.

[0005]

[Means for Solving the Problems]

 The present invention is intended to solve the above problems, and its technical means is to mount a threshing device on one side of a machine body frame having a traveling device, and a cockpit and an operating device on the other side. In a combine with a control section and a pretreatment device in the front, the control section can be vertically moved up and down integrally along a guide rail by a hydraulic actuator, and at the same time, from the lateral side of the cockpit, It is characterized in that a safety guard extending over the outside is provided, and the safety guard is displaceably attached to an operating position for closing the entrance / exit above the step and a retracted position for opening it.

[0006]

[Action]

 When boarding the control section, the operator first sits on the cockpit, puts the safety guard in the operating position, and closes the entrance / exit. When performing the mowing threshing work, the control section is integrally lifted by the hydraulic actuator along the guide rails, and the mowing threshing work is performed at a favorable high position in the front view. In this case, the safety guard functions as a fall protection measure for the operator when the aircraft is tilted, and also as a grip that stabilizes the posture in the middle waist or when standing up. In addition, when traveling on the road or storing the aircraft in a garage, lower the control unit to adjust it to a position suitable for traveling on the road, or lower the control unit to the maximum to store the aircraft. To facilitate. When getting off the vehicle, the safety guard can be set to the retracted position to open the entrance / exit and to get off safely without obstacles.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 6, a combine 1 has a threshing device 4 mounted on the left side of a machine body frame 3 having left and right crawler traveling devices 2 and 2. A control unit A is provided on the right side of the threshing device 4. Behind the control unit A, an engine covered by covers 5 and 6 and a radiator cooling device are arranged. Further, in front of the control unit A, a pretreatment device B including a grass body 7, a raising device 8, a mowing device 9, and a conveying device 10 for conveying the mowing culms to the threshing device 4 over the substantially entire width of the machine. Is mounted so that it can be rotated up and down. Further, a disk-type cutter 11 is attached to the rear part of the threshing device 4, and a Glen tank 12 is erected by a proper strut at a portion above the threshing device 4, engine and radiator cooling device. is doing. In addition, 13 is a paddy discharge auger.

As shown in FIGS. 1 and 2, the control section A is a box-shaped body in which a front frame 14a, a rear frame 14b, and a side frame 14d are respectively installed upright on the threshing device side with a step 14c interposed therebetween. The control section frame 14 is framed. Further, the front frame 14a is provided with operation levers such as a mono lever 15 for vertically moving the pre-treatment device B and turning of the machine body, and an engine start switch 16, and instruments such as a threshing tachometer 17 and the like. Various types of automatic control switches 18 are attached via a front panel 19. Similarly, on the side frame 14d, a traveling speed change lever 20 and operation levers such as a mowing and threshing clutch lever are mounted so as to face the side panel 21. Reference numeral 22 denotes a front guard fixed to the front of the front frame 14a. When the monolever 15 is operated, the wrist is supported by the front guard 22 and the operation can be easily performed. Also, when standing up and maneuvering, it is used as a handle to stabilize the posture of the operator together with the safety guard described later. Reference numeral 23 is a brake pedal, and 24 is an auxiliary step.

The pilot seat 25 has a step 14c mounted on a pedestal 14e that is pressed upwardly and is provided with an armrest 26 on the lateral outside thereof. The safety guard 27 is provided from the lateral side of the cockpit 25 to the outside of the operating device provided in the front part, and as shown in detail in FIG. 3, the pipe 27b to which the sponge 27a constituting the grip is adhered is attached. One end is pivotally supported by a bracket 28 fixed to the rear frame 14b via a pin 29 so as to be vertically rotatable. On the other end of the shaft 27c welded to the pipe 27b, a sliding cylinder 27d constituting a locking portion is externally fitted, and the sliding cylinder 27d is biased by a spring 27e in a protruding direction. In addition, a spring 27f and a ball 27g are inserted into the hole formed in the shaft 27c to regulate the moving range of the sliding cylinder 27d and prevent the sliding cylinder 27d from being separated from the shaft 27c. On the other hand, the engagement plate 30 is welded to the front frame 14a located outside the front operating device, and the engagement portion 27h provided at the tip of the sliding cylinder 27d is engaged with the engagement plate. By fitting into the hole 30a of the safety guard 30, the safety guard 27 is locked in the working position for closing the entrance C above the step 14c. Further, an engagement plate 31 having the same shape as the engagement plate 30 provided on the front frame 14a is welded to the rear frame 14b, and the sliding cylinder 27d is removed from the engagement plate 30 against the spring 27e. After the dismounting, the safety guard 27 can be rotationally retracted to open the entrance / exit C, and the safety guard 27 can be stored and held at a predetermined position by fitting the engaging plate 31.

Further, the control section A is provided with a hood 32 constituting a sunshade so that its height can be adjusted. As shown in FIG. 4, the hood 32 has a support column 33 made of a pipe inserted into a holder 34. The holder 34 is detachably fixed to the rear frame 14b, and a balance spring 35 is inserted into the holder 34. When the height of the hood 32 is adjusted upward, the positioning pin 36 is pulled out from the holes 34a and 33a provided in the holder 34 and the support column 33 against the spring 37, and the hood 32 is raised by the balance spring 35. It is possible to adjust the height by selecting again by the positioning pin 36 into the hole 33b or 33c provided in the support via the hole 34a. Reference numeral 38 denotes a rotation preventing pin of the hood 32, which is slid up and down while fitting in a holder 39 fixed to the rear frame 14b at a distance from the support column 33 in accordance with height adjustment. Prevents rattling and securely prevents the hood 32 from rotating.

Next, the elevating device D of the control section A will be described with reference to FIG. 1. A bracket 40 is attached to the rear surface of the rear frame 14b of the control section A. A piston 41a of a hydraulic actuator 41 is fixed to the bracket 40. Further, rollers 43, ... are paired and supported on the left and right frames 42, 42 fixed to the rear frame 14b so as to be positionally adjustable, and the rollers 43 ,. The guide rails 44, 44 made of channel members are fitted into the guide rails 44 and pressed against the guide rails 44. Therefore, when the hydraulic actuator 41 having one end of the cylinder 41b fixed to the machine body frame 3 is operated by operating an elevating lever (not shown) provided in the control section A, the control section A causes the rollers 43 and the guide rails 44, 44 to operate. You can go up and down by using as a guide.

Here, the ascending / descending range of the control section A is from the lowermost position shown by the solid line in FIG. 6 to the maximum ascending position shown by the chain double-dashed line. If adjusted, the hood 32 can be positioned further above the position indicated by the chain double-dashed line. Returning to FIG. 1, reference numeral 45 denotes a lowering prevention stopper of the control section A, which is rotatably supported by the frame 42. The descent prevention stopper 45 prevents the descent of the control part A by contacting any of the engaging parts 44a, 44b, 44c fixed to the guide rail 44, and the control part is not accidentally caused by a failure of the hydraulic actuator 41 or the like. Prevent falling. Therefore, when lowering the control section A, first, the release lever 47 provided on the control section A is pulled against the spring 46 to retract the lowering prevention stopper 45 from the engaging sections 44a, 44b, 44c. Then, the elevating lever is lowered.

In order to board the control section A in the above configuration, first, while sitting on the control seat 25, the safety guard 27 housed and held in the engagement plate 31 of the rear frame 14b is removed, and the front The engaging plate 30 provided on the partial frame 14a is fitted and locked with the engaging portion 27h of the sliding cylinder 27d. As a result, the safety guard 27 is in the operating position, and the entrance / exit C is closed. When the combine 1 performs the mowing and threshing work, the engine is started by the start switch 16 and the control section A is integrally raised along the guide rail 44 by the hydraulic actuator 41. In this state, the operator can operate the aircraft while sitting on the cockpit 25 at a high maneuvering position without obstructing the field of vision by the front pretreatment section B, and therefore the operator is forced to stand. You can work comfortably. In addition, the safety guard 27 closes the entrance / exit C to check the transportation state of the grain culm, etc. even in the middle waist or in the standing state. Therefore, the operator can perform these tasks with peace of mind. Even if the aircraft tilts and loses stability, the safety guard 27 functions as a fall protection means. Further, the safety guard 27 can be used as a grip for stabilizing the posture of the operator even when the operator is leaning out of the control section A while standing up or when the vehicle is moving backward. When traveling on the road or storing the aircraft in a garage, etc., lower the control unit A to adjust the control unit A to a position suitable for traveling on the road, or lower the control unit A to the maximum extent. It can be easily stored. When the passenger dismounts, if the safety guard 27 is removed from the engagement plate 30 and is stored and held in the engagement plate 31 of the rear frame 14b, the entrance / exit opening C is opened, and the safety guard 27 prevents the passenger from getting on and off. The obstacle can be removed.

Next, a second embodiment of the safety guard will be described. As shown in FIG. 5, in the safety guard 27 ', one end of a pipe 27'b to which a sponge 27'a constituting a grip is adhered is The pin 28 'fixed to the front frame 14a is rotatably supported while being prevented from coming off. Also, a cushioning material 27'c such as rubber is attached to the other end of the pipe 27'b, and the pipe 27'b is fitted in a U-shaped bracket 29 'which is fixed to the rear frame 14b and which is open at the upper side so as to be held at the operating position. To do. Therefore, in the illustrated state, the entrance C above the step 14c is closed, and in order to open the entrance C, the safety guard 27 'is lifted upward from the bracket 29' and the fitting is released. The play provided at the front fulcrum allows the safety guard 27 'to be displaced to the retracted position by bypassing the bracket 29' and rotating downward. Further, as shown in FIG. 5, when the height of the hood is adjusted, the left and right brackets 33 ', 33' attached to the hood 32 are extended to the inside of the rear frame 14b, and the long holes 33'a, 33'a thereof are formed. It is also possible to insert the bolt 48 extending from the rear frame 14b therein, adjust the position, and tighten and fix with a nut.

[0015]

[Effect of the device]

 As described above, according to the present invention, since the control section A is integrally movable up and down along the guide rail 44 by the hydraulic actuator 41, the control section A is raised to a high position in the cutting operation. Thus, the aircraft can be operated in a comfortable sitting position without being obstructed by the pretreatment device B or the like. Moreover, since the control section A is provided with a safety guard 27 extending from the lateral side of the cockpit 25 to the outside of the front operation device, even if the control section A is raised to a high level, a safety guard is provided. 27 protects against the danger of falling and can perform continuous work with peace of mind. Moreover, since the safety guard 27 is displaceably attached to the working position for closing the entrance C above the step 14c and the retracted position for opening, the safety guard 27 can be displaced to the retracted position when getting on and off. Since the entrance / exit C can be opened, it is possible to configure a comfortable and inexpensive control section that is easy to get on and off.

[Brief description of drawings]

FIG. 1 is a perspective view of a control unit.

FIG. 2 is a side view of a control unit.

FIG. 3A is a cross-sectional view showing a reduced state of the safety guard. (B) It is sectional drawing which shows the extended state of a safety guard.

FIG. 4 is a side view showing a mounted state of the hood.

FIG. 5 is a side view showing another embodiment of the control unit.

FIG. 6 is a perspective view of a combine.

[Explanation of symbols]

 A Control unit B Pre-processing device C Entrance / exit 2 Crawler traveling device 3 Machine frame 4 Threshing device 14c Step 25 Pilot seat 27 Safety guard 41 Hydraulic actuator 44 Guide rail

Claims (1)

[Claims for utility model registration] [Claim 1] A threshing device is mounted on one side of a machine frame having a traveling device, a control section including a cockpit and an operating device is provided on the other side, and a pretreatment device is provided on the front side. In the provided combine, the control section is integrally movable up and down along a guide rail by a hydraulic actuator, and a safety guard extending from the lateral side of the control seat to the outside of the front operation device is provided. A control section of a combine, which is displaceably attached to an operating position for closing an entrance / exit above a step and a retracted position for opening the same.