JPH0132526Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a safety handle to a combine harvester.

Generally, combine harvesters that have a driving operation section behind the pre-processing section installed at the front of the machine frame are equipped with safety handles on both sides of the driving operation section that the driver sitting in the driver's seat can grasp with both hands. There are things, but
Conventionally, in this type of security handle, the proximal end portions of the handle having grip portions that protrude left and right are fixed to the side plates of the operation panel box by bolts or the like. However, safety handles are not only used to help the operator maintain a stable posture while the machine is moving, but also, especially for small combine harvesters, when the machine gets stuck in soft ground when working in a wet field. When you get down to the field and press the handle to push the machine up, a large amount of force is applied to the safety handle, and if the control panel is secured to the side plate with bolts, the mounting strength is insufficient and the handle may bend. There is a drawback that the operation panel box may become deformed due to slippage.

The present invention was devised in view of the above-mentioned circumstances, and a cylindrical lever frame that pivotally supports the side clutch lever is installed between the side plates of the operation panel box of the operation section in a direction perpendicular to the direction of movement of the aircraft. , the proximal ends of the safety handles that pass through the side plates of the operation panel box are fitted into both ends of the cylindrical lever frame, and the cylindrical lever frame and the safety handles are attached to the operation panel via the mounting body. By fixing the box side plates in a sandwiched state, the safety handle can be firmly fixed to the operation panel box side plate as an integral structure with the cylindrical lever frame, making it easy to carry out work when the machine is on soft ground, etc. Even if someone gets down on the field and pushes the handle, the mounting strength of the cylindrical lever frame is not only ensured so that the mounting of the safety handle will not bend or the operation panel box will be deformed. The purpose of this invention is to provide a structure for attaching a safety handle in a combine harvester that can be improved.

To explain the present invention with reference to an embodiment shown in the drawings, 1 is a combine harvester, 2 is a running section 3;
A body frame equipped with an engine 4, 5 a pre-processing section provided at the front of the body frame 2, and 6 a threshing machine mounted at the rear of the body frame 2. A driving operation section 7 and a driver's seat 8 are provided behind the preprocessing section 5.

Reference numeral 9 denotes an operation panel box forming the driving operation section 7. The operation panel box 9 is fixed to the step 11 with mounting bolts 10, and a lever boss 13 is installed between the side plates 12, 12 of the operation panel box 9. A cylindrical lever frame 15, through which left and right side clutch levers 14, 14 are rotatably fitted, is installed in a direction orthogonal to the traveling direction of the aircraft body. Reference numeral 16 denotes an arm fixed to the proximal end side of the side clutch lever 14, and one end of the spring 18 is attached to the attachment hole 17 of the arm 16, and a side clutch (not shown) is attached to the other end of the spring 18.
A control wire 19 is connected thereto. Reference numeral 20 denotes a stopper rotatably connected to an arm 21 fixed to the lever frame 15 via a pin 22;
The upper end of a rod 25, which is inserted into the guide hole 24 of the step 11 so as to be slidable in the vertical direction, is pivotally connected to the tip of the rod 3. Reference numeral 26 is a foot pedal provided on the rod 25 near the step 11, and a coil bullet 27 is loaded between the foot pedal 26 and the step 11. The rod 25, which is urged upward, is connected to the arm 23.
The stopper 20 is constantly pressed into contact with the arm 16 via the arm 16. Then, as shown in FIG. 4, when the side clutch levers 14, 14 are pulled simultaneously, the arm 16 rotates upward, and a pin 28 protruding from the tip of the arm 16 is rotated upward.
However, the side clutch is simultaneously locked in the recess 29 of the stopper 20 to automatically lock the side clutch so that it can also be used as a parking brake, and by then depressing the foot pedal 26, the locked state can be released. . Reference numeral 30 denotes safety handles provided on both sides of the operation unit 7, and the tip side of the safety handle 30 is
A grip portion 31 is formed to protrude left and right, and its base end is bent toward the side plate 12 of the operation panel 9, and extends through the side plate 12 from both ends of the lever frame 15 into the cylindrical interior. It is inserted. The safety handle 30 has a side plate 1.
A plate-shaped mounting body 32 is fixed to the outside of the lever frame 15, and mounting bodies 33 having substantially the same shape as the mounting body 32 are fixed to the left and right ends of the lever frame 15, facing the inner wall of the side plate 12. , mounting bolt 34
By tightening and fixing both the mounting bodies 32 and 33 with the side plate 12 sandwiched therebetween, the safety handle 30 and the lever frame 15 are fixed to the side plate 12 as an integral structure.

Next, to explain the operation of the present invention configured as described above, the combine 1 performs reaping and threshing work while operating the side clutch lever 14 and turning the machine as appropriate. When there is no need for operation, the driver can rest his hands by holding the safety handle 30, and even if the aircraft shakes, he is supported by the safety handle 30 and will not lose his balance. When the combine harvester 1 is stuck on soft ground during wet field work, etc., even if the worker gets down to the field and pushes the safety handle 30 to push the machine up, the side plate 12 Since the base end side of the fixed safety handle 30 is fitted into the lever frame 15, there is no possibility that excessive force will be applied only to the side plate 12 and the mounting direction of the safety handle 30 will be bent or the side plate 12 will be deformed. do not have. Moreover, the safety handle 30 and the lever frame 15 are attached to the mounting bodies 32 and 33.
Since it is tightened and fixed while holding the side plate 12, and is fixed to the side plate 12 as an integral structure, the mounting strength of the lever frame 15 can be improved as well as the side plate 12 can be reinforced. I can do it.

In addition, when the combine 1 is stopped, if you pull the left and right side clutch levers 14 at the same time, the side clutch levers are automatically locked and also serve as stopping brakes, so you can stop the combine safely, and you can easily release the lock with just your foot. can do.

In short, the present invention provides a combine harvester in which a driving operation section is provided behind a preprocessing section provided at the front part of the machine frame, and safety handles are provided on both sides of the operation operation section, and an operation panel of the operation operation section is provided. A cylindrical lever frame that pivotally supports the side clutch lever is installed between the box side plates in a direction perpendicular to the direction of movement of the aircraft, and a safety handle is attached to both ends of the cylindrical lever frame and extends through the operation panel box side plate. At the same time, the cylindrical lever frame and the safety handle were fixed in a state where the operation panel box side plate was sandwiched through the mounting body, so the safety handles provided on both sides of the operation part , since it is also supported on the proximal end that is inserted into the lever frame, the installation strength is strengthened, and unreasonable force is not concentrated only on the side plate, so even if you push the safety handle and push the aircraft up, the security The handle should not bend or the side plate may be deformed.
The cylindrical lever frame and the safety handle, which are fixed while holding the side plate, are integrated and fixed to the side plate, so the mounting strength of the cylindrical lever frame can be improved as well. This has extremely useful practical effects, such as being able to reinforce the strength of the steel.

[Brief explanation of the drawing]

The drawing shows an example of the mounting structure of the safety handle in the combine harvester according to the present invention,
FIG. 1 is an overall side view of the combine harvester, FIG. 2 is a longitudinal sectional front view of the operation panel, and FIGS. 3 and 4 are longitudinal sectional side views of the same. In the diagram, 1 is the combine, 2 is the fuselage frame, and 5
is a pre-processing section, 7 is a driving operation section, 9 is an operation panel box, 12 is a side plate, 14 is a side clutch lever, 15 is a lever frame, 30 is a safety handle,
32 and 33 are attachment bodies.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a driving operation section is provided behind a pre-processing section provided at the front of the machine frame, and safety handles are provided on both sides of the operation operation section, a side clutch is installed between the side plates of the operation panel box of the operation operation section. A cylindrical lever frame that pivotally supports the lever is constructed in a direction perpendicular to the direction in which the aircraft moves, and the proximal ends of security handles that pass through the operation panel side plates are fitted into both ends of the cylindrical lever frame, respectively, and A mounting structure for a safety handle in a combine harvester, characterized in that the cylindrical lever frame and the safety handle are fixed in a state in which an operation panel side plate is sandwiched between the cylindrical lever frame and the safety handle.