JPH019376Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a reaping and binding machine (binder) that harvests crops such as rice, then binds the grain culms in appropriate amounts and then releases them.
Specifically, in this type of reaping and tying machine, the purpose is to improve the assembly accuracy and balance of a transmission case provided with a pair of left and right running wheels.

The present invention will be explained below with reference to the drawings of the embodiments. A reaping and tying machine is shown in which a reaping and tying section 7 is attached to each section through a pipe-like frame 6 extending forward, and a cover 10 having a placement section 9 for a string coil 8 is provided in the middle of the section. .

The reaping binding section 7 includes a pair of left and right weeding bodies 11,
12, a guide body 13 extending rearward and diagonally upward from the rear of one of the weeding bodies 11, and the other weeding body 12.
a grain culm pulling mechanism 14 extending rearward and obliquely upward from the rear part of the crop culm, a reaping mechanism 15 located at the rear of the lower part of both of the grass cutting bodies 11 and 12, and a binding device 16 located at the rear of the other grass cutting body 12. Consisting of
A gear case 17 attached to the tip of the pipe-like frame 6 is provided with a vertical shaft 18, and power from the engine 4 is transmitted to the vertical shaft 18 via a power transmission shaft 19 inside the pipe-like frame 6, A crank 20 for driving the reaping mechanism 15 is fixed to the lower end of the vertical shaft 18, and a sprocket 23 on the input shaft 22 of the binding device 16 is connected between a sprocket 21 fitted on the upper end of the vertical shaft 18 and a sprocket 23 on the input shaft 22 of the binding device 16. Wrapped chain 2
4, the power is transmitted to the binding device 16, and then the sprocket 26 fitted to the output shaft 25 of the binding device 16
and a sprocket 29 at the lower end of the vertical shaft 27 to the grain culm pulling mechanism 14 to drive the grain culm pulling mechanism 14. The shaft 27 is provided with a pair of upper and lower star wheels 31 and 32 for feeding the grain culms in the direction of the binding device 16.

Further, the binding device 16 includes a knotting mechanism 37 consisting of a building 34, a holder 35, a knotting cover 36, etc., and a packer 38,
Needle 39, door arm 40 and release arm 4
A focusing discharge mechanism 42 consisting of a 1st type is provided on both sides of the grain culm conveyance path 43 from the star wheels 31 and 32.

Reference numeral 44 indicates a conveyance guide plate attached to the front surface of the cover 10, and the conveyance guide plate 44 is located behind the star wheels 31 and 32 and substantially above the reaping mechanism 15, and is located on the side of the guide body 13. The conveyance guide plate is provided so as to extend toward the binding device 16 in a direction transverse to the traveling direction of the reaping and binding device 1 and at an angle rearward with respect to the binding device 16. On the 44 side, an auxiliary conveyance body 45 with a protrusion is provided at a midway height position in the height direction, and is wound around between two pulleys.
A part of the auxiliary conveyance body 45 with projections is projected to the front surface of the conveyance guide plate 44, and this auxiliary conveyance body 45 is
It is configured to be rotationally driven via a vertical shaft 46 connected to the upper end of the vertical shaft 18 in the gear case 17.

The transmission case 3 is connected to the pair of left and right transmission case pieces 3a at a plane 47 that passes through the approximate center position between the left and right traveling wheels 2, 2 and extends parallel to the traveling direction of the reaping and binding machine in a plan view of the reaping and binding machine 1. . ' and the engines 4 are respectively connected to them.

Note that the power transmission shaft 19 in the gear case 17
is provided with a clutch mechanism 49 for turning on and off the drive of the reaping binding section 7, and the rear end of the power transmission shaft 19 extends inside the transmission case 3 to the rear end and is connected to the output shaft of the engine 4. 51, the power is transmitted to gears 52, 53 with a main clutch mechanism 51, and a gear shift lever 55 is connected between the traveling shaft 54 for transmitting power to the wheel 48 of the traveling wheels 2, 2 and the power transmitting shaft 19. A gear-type traveling speed change mechanism 56 that is operated to change speed is provided. That is, if the gear shift lever 55 is set to the rearmost I position, the traveling shaft 5
Among the two gears 57 and 58 on the power transmission shaft 19, the large diameter gear 57 is connected to the two gears 5 on the power transmission shaft 19.
If the gear meshes with the small diameter gear 59 of 9 and 60 and moves forward in the first gear, and the gear shift lever 55 is placed in the N position,
Both speed change gears 57, 58 do not mesh with either gears 59, 60, so the vehicle is in neutral mode where the vehicle stops running, and if the speed change lever 55 is moved to the R position,
The large-diameter transmission gear 57 meshes with the reverse gear 61 (however, the reverse gear 61 is interlocked with the gear 60 via a gear not shown) and travels backward, and the transmission lever 55 is moved to the position. Then, the small-diameter gear 58 meshes with the large-diameter gear 60 to move forward at the second speed (in this case, the shift pattern is reversed in the front-back direction of the reaping and tying machine). ).

In this configuration, when the reaping and tying machine 1 moves forward, the grain culm that is being pulled up by the grain culm lifting mechanism 14 and reaped by the reaping mechanism 15 is transported by a conveyance guide provided at a position substantially above the reaping mechanism 15 with the tip of the grain. Board 4
4, and the binding device 1 is supported by both star wheels 31 and 32.
After being sequentially sent in the direction of 6 and condensed into an appropriate amount, the base of the plant is tied with a string fed out from the string coil 8, and then discharged to the right side of the reaping and tying machine 1.

In the embodiment, the transmission case 3 is divided into a pair of left and right transmission case pieces 3a and 3b along a plane 47 extending parallel to the traveling direction of the reaping and binding machine 1 in a plan view, and both transmission case pieces 3a ,3b
A flange 6a at the rear end of the pipe-shaped frame 6 is attached to the front end surface 3a' of one of the transmission case pieces 3a.
By joining the engine 4 to the rear end surface 3b' of the other transmission case piece 3b, the flange 6a at the rear end of the pipe-like frame 6 and the engine 4 are
Since it does not straddle the two transmission case pieces, there is no difference in level between the joining surfaces, unlike when the two transmission case pieces straddle the two transmission case pieces.Therefore, the sealing performance at the joint is improved, and This improves assembly accuracy.

Moreover, by making the plane 47 that divides the transmission case 3 into the two transmission case pieces 3a and 3b approximately at the center position between the two running wheels 2, 2, the pipe-like frame 47 of the two running wheels 2, 2 The supporting load of the pipe-like frame 6 acts on one running wheel that is close to , and the supporting load of the engine 4 acts on the other running wheel, so that the wheel loads of both running wheels 2, 2 approach to be equal. Therefore, the balance in the left and right direction of the entire reaping and binding machine 1 is improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the reaping and tying machine, FIG. 2 is a plan view of FIG. 1, FIG. 3 is an enlarged plan view of FIG. 1, and FIG. 4 is an enlarged plan view of FIG. FIG. 3 is an enlarged sectional view taken from the side, FIG. 5 is an enlarged plan view of the transmission case, and FIG. 6 is a skeleton diagram of the traveling transmission mechanism. DESCRIPTION OF SYMBOLS 1... Reaping binding machine, 2... Running wheel, 3... Transmission case, 4... Engine, 6... Pipe-shaped frame, 7... Reaping binding part, 15... Reaping mechanism, 1
6... Binding device, 48... Axle, 3a, 3b...
Transmission case piece, 3a'...front end surface, 3b'...rear end surface.

Claims (1)

[Scope of utility model registration request] In a reaping and tying machine, a reaping and tying section is attached to the front part of a transmission case equipped with running wheels on both left and right sides via a frame extending forward, and an engine is attached to the rear part of the transmission case. The transmission case is configured as a pipe-shaped frame into which a power transmission shaft to the binding section is inserted, and the transmission case is arranged parallel to the traveling direction of the reaping and binding machine through approximately the center position between the left and right traveling wheels in a plan view of the reaping and binding machine. The transmission case is divided into a pair of left and right transmission case pieces along an extending plane, and the pipe-shaped frame is connected to the front end face of one of the transmission case pieces, and the engine is joined to the rear end face of the other transmission case piece. A reaping and tying machine.