JPH0525990Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an operating lever support device for agricultural machinery such as combines and other industrial machinery.

(B) Conventional Example Conventionally, a support device for an operating lever has a supporting frame holding a fulcrum shaft, and two operating levers are fitted from both ends of the fulcrum shaft and each is rotatably locked by a C ring. .

(c) Problems to be solved by the invention In the known operating lever support device, after the fulcrum shaft is mounted on the support frame, the bosses of the two operating levers are fitted onto the fulcrum shaft from both ends thereof, and each C.
Since it was fixed with a ring or the like, assembly and disassembly were extremely troublesome.

(d) Means for solving the problem The present invention is an operating lever support device in which two operating levers are pivoted on a common rotation center line, in which one operating lever is fixed to a holding cylinder that is integrated with the support frame. The attached fulcrum shaft is inserted from one side and rotatably supported, and the attachment part of the operating lever for the fulcrum shaft is overlapped with the end of the holding cylinder, and the boss of the other operating lever is inserted into the other side of the holding cylinder. Fitted to the outer periphery so as to rotate while preventing movement to the one side, the outer end of the fulcrum shaft is connected to the outer end of the holding cylinder and the boss,
By locking through the washer and the C ring that fits into the circumferential groove on the outer end of the fulcrum shaft, it is possible to set one operating lever in the process of attaching the fulcrum shaft to the holding cylinder, and the C The above-mentioned problems have been solved by making the fixing process using a ring or the like a single process, and by omitting the boss part of one of the operating levers.

(E) Function: Fix one operating lever to a fulcrum shaft, insert this fulcrum shaft into a support tube that is integrated with the support frame, and overlap the attachment part of one of the operating levers to the fulcrum shaft with the end of the holding tube. Then, the boss of the other operating lever is fitted to the outer periphery of the other side of the holding cylinder so as to rotate while preventing movement to the one side, and a washer and a C ring are fitted to the end of the fulcrum shaft. At the same time, the fulcrum shaft and the boss of the other operating lever are locked to the other end of the holding cylinder.

(F) Embodiment To explain the operation device of a combine harvester, which is an embodiment of the present invention shown in the drawings, a pre-processing device consisting of a reaping device 1 and a shell culm conveying device is installed at the front of the shelling device mounted on the machine stand. The reaping device 1 is equipped with a control panel 2 at the rear on one side, a driver's seat 3 with an engine installed below, and levers that guide a pair of left and right control levers 5 and 6 that tilt forward and backward. A control section consisting of an operation panel 7, etc. is provided.

As shown in FIG. 1, the lever operation panel 7 includes a guide plate 7a having a guide groove and a side cover 7.
b is removably screwed with bolts 8..., and a holding cylinder 11 is welded horizontally to a support frame 10 that is installed in the upper part of the lever operation panel 7 in the front-rear direction, and a fulcrum shaft is formed. The base of the one operating lever 5 is directly welded to one end of the lever 12, and an arm 15 to which a connecting rod 13 is connected by a pin 14 is welded to the intermediate part thereof.
1 is rotatably inserted.

The other operating lever 6 has a boss 16 fitted to the outer circumferential portion of the other side of the holding cylinder 11, and is received on the inside by a fixed washer 17, and is overlapped with the outer end of the boss 16 and the outer end of the holding cylinder 11. 18
is locked by a C ring 21 that engages with the circumferential groove 20 of the fulcrum shaft 12. In this state, the arm 15 overlaps the inner end of the holding cylinder 11, and the arm 22 protruding from the boss 16 is connected to another connecting rod 23 by a pin 25.

In the above-mentioned operation lever support device, when assembling the lever operation panel 7, the guide plate 7a of the lever operation panel 7 is removed, and the fulcrum shaft 12, to which one operation lever 5 is welded, is inserted into the holding cylinder 11 so that the plate surface of the arm 15 is The other operating lever 6 is connected to the end surface of the holding cylinder 11.
When the boss 16 is fitted to the outer periphery of the other end of the holding cylinder 11, the washer 18 is overlapped, and the C ring 21 is engaged with the circumferential groove 20 from the side of the reaping device 1.
The arm 15, fixed washer 17, and washer 18 are attached to a body and are locked by one C ring 21 to position the operating levers 5, 6, and the operating levers 5, 6 can be tilted back and forth separately. can be operated.

Further, the operation panel 2 includes a pair of left and right steering levers 2.
6 and 27 are held so that they can be tilted back and forth, and a tachometer 28 is placed on the left side of the top surface, and various check clamps 29 are placed on the center and right sides, and are erected diagonally from both sides toward the rear. Mounting frame 30, 30
The ends of gripping rods 31 and 32 made of square tubes are fixed to the upper surfaces of the gripping rods 31 and 32, and various switches 33, 34, 35 for combine harvester operation, a horn switch 36, and a turn signal switch 37 are arranged on the upper surface of the gripping rods 31 and 32. At the same time, a prismatic auxiliary panel 38 having a horizontal square hole 38a in the central part is fitted and fixed in the middle part, or is mounted so as to be movable left and right, and wiring 40 to the auxiliary panel 38 is installed. is the operation panel 2
It passes through the hollow part of one of the gripping rods 31 from the side thereof.

It is desirable that the operation panel 2 is lowered so that the reaping device and the like in front can be easily seen. However, if this is lowered, the switches on the operation panel 2 will be farther away from the cockpit 3, making operation difficult; however, by providing the auxiliary panel 38 at the rear upper part of the operation panel 2, it will become an obstacle to visual recognition of the front and lower parts. In addition, by mounting frequently used switches on the auxiliary panel 38, it is possible to easily operate them, and the gripping rods 31 and 32 can be used as means for supporting the auxiliary panel 38, which reduces costs. The configuration can be simplified.

In addition, in the case where the auxiliary panel 38 is movably mounted, plate springs 39, 39 are installed inside which act in a direction perpendicular to the gripping rods 31, 32, so that when the auxiliary panel 38 is slid left and right, the A right-handed person moves the auxiliary panel 38 to the right, grips the gripping rod 32 with his left hand, and operates a switch etc. with his right hand. do.

(G) Effect of the invention As mentioned above, this invention provides two
In an operation lever support device that pivotally supports two operation levers, a holding cylinder 11 integrated with a support frame 10
, there is a fulcrum shaft 12 to which one operating lever 5 is fixed.
is inserted from one side and rotatably supported, and the attachment part of the operating lever 5 to the fulcrum shaft 12 is overlapped with the end of the holding cylinder 11, and the boss 16 of the other operating lever 6 is attached to the holding cylinder 11. The washer 18 and the fulcrum shaft are fitted to the outer periphery of the other side so as to rotate while preventing movement toward the one side, and the outer end of the fulcrum shaft 12 is connected to the outer end of the holding cylinder 11 and the boss 16. Since the shaft 12 is locked via the C ring 21 that fits into the circumferential groove on the outer end of the shaft 12, one of the operating levers 5 is connected to the fulcrum shaft 1.
2 can be inserted into the holding cylinder 11 in a fixed state, and the one operation lever 5 and the boss of the other operation lever 6 can be attached with one locking, and the structure is simple and can be obtained at low cost. However, it can be easily assembled and disassembled.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention and related configurations, in which Fig. 1 is a longitudinal sectional front view of a control lever mounting device of a combine, Fig. 2 is a perspective view of a control section,
FIG. 3 is a perspective view of the operation panel, and FIG. 4 is a partially cutaway plan view of the auxiliary panel. 5, 6...operation lever, 7...lever operation panel,
11... Holding tube, 12... Fulcrum shaft, 16... Boss, 21... C ring.

Claims (1)

[Scope of utility model registration request] Two operating levers 5, 6 on a common rotation center line
In this operating lever support device, a fulcrum shaft 12 to which one operating lever 5 is fixed is inserted from one side into a holding cylinder 11 integral with a support frame 10 to rotatably support the operating lever. The attachment part for the fulcrum shaft 12 of No. 5 is overlapped with the end of the holding cylinder 11, and the boss 16 of the other operating lever 6 is rotated to the outer periphery of the other side of the holding cylinder 11 while preventing movement to the one side. The fulcrum shaft 12
to the outer ends of the holding cylinder 11 and the boss 16,
An operating lever support device characterized in that it is locked via a C ring 21 that fits into a circumferential groove on the outer end of the washer 18 and the fulcrum shaft 12.