JPH0437393Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to the steps of a combine harvester that reaps and threshes grain culms.

(b) Prior art Conventionally, in order to perform maintenance and inspection of the transmission device or other equipment installed below the control unit or between the control unit and the threshing device, an operation panel and A combine harvester in which a step connected to the rear of the combine is rotated forward about a horizontal axis to expose the transmission device, etc. was developed in U.S. Pat. No. 56-57026.
It is already known from the above-mentioned publication, and the step and the driver's seat at the rear of the step are rotated outwardly about an axis in the longitudinal direction provided on the side, thereby increasing the power transmission. A combine harvester in which devices and the like are exposed is already known from Japanese Utility Model Application No. 120028/1983.

(c) Problems to be solved by the invention Among the known combine harvesters mentioned above, in the former, when the step rotates forward together with the operation panel, the operation panel collides with the grain culm pulling body in front of it, so the rotation range is limited. If the grain culm lifting body is set outside the rotation range of the operation panel, etc., the width of the machine will be If the cutting width is constant, the cutting width will be narrow, and if the cutting width is constant, the width of the machine body will become wider.

In addition, in the latter known combine harvester, the step and the seat stand installed at the rear of the step are rotated outward, so if an auxiliary step is provided on the outside of the machine,
The auxiliary step becomes an obstacle to the rotation of the step, etc., making it impossible to sufficiently open the upper part of the transmission device, etc., and in the end, the auxiliary step cannot be provided, making it difficult to get on and off the control section and perform the maintenance and inspection work. There is a problem that it becomes difficult to get on and off the machine when carrying out maintenance work, and when the steps, etc. are rotated outward, the steps, etc. are located close to the area to be inspected, making maintenance inspection difficult. It became an obstacle.

(d) Means for solving the problem The present invention is equipped with a pre-processing device consisting of a reaping device and a grain culm conveying device at the front of a threshing device mounted on one side of the machine base, and An operation panel is provided on the front side,
In a combine harvester in which a pilot's seat is provided at the rear of the operation panel with a step separating the operator's seat, the operation panel and the step are constructed integrally and are mounted on the machine base so as to be able to approach and separate from the machine base, and an auxiliary step is provided on the outside of the machine base. protruding,
A pair of front and rear brackets fixed to the outside of the step and suspended therefrom are pivotally connected to the front and rear bent portions of the auxiliary step so that the step can be supported by rotating outward in a sideways manner. There are no restrictions on the setting of the cutting width or body width, and the auxiliary step allows easy getting on and off from the control section and the machine base during maintenance and inspection. The above-mentioned problem was solved by preventing the steps etc. from being separated from the aircraft and becoming an obstacle to maintenance and inspection work.

(E) Function When the step is rotated outward to perform maintenance and inspection of various devices stored at the bottom of the step or transmission devices such as belts, or to refuel the fuel tank, the auxiliary step is activated. The bracket does not become an obstacle, and the bracket rotates around its lower end while being supported by the auxiliary steps that protrude outwards.As a result, the steps are separated from the machine base by a large distance, making it easier to carry out the various operations mentioned above. The auxiliary step functions as a stopper to support the operation panel and steps, and the fact that the steps and operation panel are laid down on its side makes it extremely stable and safe. can be maintained in the same state.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a machine base having a traveling device 2, and although not shown in the figure, a threshing device is mounted on one side of the machine, similar to a conventional self-removal type combine harvester, and in front of it, a reaping device and a grain culm conveying device are installed. A pre-processing device 3 is installed so that it can be tilted up and down, and on the other side of the machine base 1, in order from the front, there is an operation panel 5, a step 6, and a seat stand that is installed near the rear of the step 6 and houses the engine. A pilot's seat 8 attached to the seat 8 and a grain tank behind it are arranged, and drive sprockets 11, 11 attached to the axles extending from the transmission case 10 to the left and right are equipped with a crawler constituting the traveling device 2. The input V-pulley of the transmission case 10 is driven by the engine via the V-belt, and the output V-pulley 12 of the transmission case 10 is connected to the counter transmission case 13 which drives the threshing device and pre-processing device 3. The input V-pulley 15 is driven via the V-belt 16.

The operation panel 6 is provided upright at the front of the step 6, and the outside of the step 6 is bent downward to form a hanging portion 6a.

An auxiliary step 17 is welded to the outer surface of the machine base 1 by bending an iron plate so as to form a downward U-shape when viewed from the side. The pair of welded front and rear brackets 18, 18 is attached to the auxiliary step 1.
It hangs down so as to overlap the front and rear surfaces of 7,
Its lower part is pivotally connected to the hanging part of the auxiliary step 17 by longitudinal fulcrum pins 20, 20.

Further, a receiver 21 having a hole 23 is installed upright near the threshing device of the step 6, and the receiver 21 is fixed to the machine base 1 and has a mounting bracket 22 having a hole 23.
It is removably screwed on with a bolt.

In the combine harvester described above, various equipment such as a transmission device disposed between the threshing device and step 6, an automatic handling depth control unit or an automatic travel control unit provided at the bottom of step 6, a lubricating device, an engine, etc. When performing maintenance and inspection, the bolts 23, 23 are removed, the operation panel 5 is held and pulled outward, and the operation panel 5 and the step 6 are removed from the second
Since the brackets 18, 18 rotate integrally as shown by the solid line in the figure, the transmission device and various devices etc. are in an open state.
Since the step 6 rotates around its lower end while being supported by the machine 1, the step 6 is spaced outwardly by a distance 1 from the machine base 1, as shown in FIG.

In this state, carry out the above-mentioned maintenance inspection, and once it is completed, return the step and operation panel 5 to their original positions as shown by the chain lines in Fig. 2, and screw the receiving plate 21 to the mounting plate 22. , the test tube 6 and the cockpit 8 may be combined as a pair so that they can be rotated laterally.

(g) Effects of the invention In this invention, a pre-processing device 3 consisting of a reaping device and a grain culm conveying device is attached to the front part of the threshing device mounted on one side of the machine platform 1, and In a combine harvester in which an operation panel 5 is provided at the front and a driver's seat 8 is provided at the rear of the operation panel 5 with a step 6 interposed therebetween, the operation panel 5 and the step 6 are constructed integrally and are connected to the machine base 1. An auxiliary step 17 is provided on the outside of the machine base 1 so as to be removable, and a pair of front and rear brackets 18 fixed to the outside of the step 6 and suspended are attached to the front and rear bent portions of the auxiliary step 17. Since the structure is such that the step 6 can be pivoted to support the step 6 by rotating it sideways outward, the step 6 can be used for maintenance and inspection of the transmission device or various equipment on the side or lower part of the threshing device of the step 6. When retracting the grain culm lifting body without becoming an obstacle, and rotating outward, the operation panel 5 and step 6 rotate around the lower part of the bracket 18 and move outward from the area subject to maintenance and inspection. This allows maintenance and inspection work to be carried out easily.

Also, when the step 6 etc. is rotated outward, the auxiliary step 1 can be opened with the step 6 laid down on its side.
7, maintenance work can be carried out safely in an extremely stable state, and there is no need for supporting means for holding the retracted position or a stopper for catching it.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention.
FIG. 1 is a perspective view of the front part of the combine, FIG. 2 is a front view of the main parts, and FIG. 3 is a perspective view of the fulcrum of the step. 1...Machine base, 6...Step, 6a...Descent portion, 17...Auxiliary step, 18...Bracket.

Claims (1)

[Scope of utility model registration request] A pre-processing device 3 consisting of a reaping device and a grain culm conveying device is installed on the front part of the threshing device mounted on one side of the machine stand 1, and an operation panel 5 is provided on the other side front part of the machine stand 1,
A cockpit 8 is located at the rear of the operation panel 5 with a step 6 in between.
In the combine harvester, the operation panel 5 and the step 6 are integrally constructed, and are mounted on the machine base 1 so as to be able to be approached and separated, and an auxiliary step 17 is provided protruding from the outside of the machine base 1, and the step A pair of front and rear brackets 18, which are fixed to the outside of the step 6 and hang down, are pivotally connected to the front and rear bent portions of the auxiliary step 17, so that the step 6 can be supported by rotating outward in a sideways manner. A step in a combine harvester characterized by the following.