JPS5945263A - Steering device for self-propelled riding work equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steering device for a self-propelled riding working machine such as a transplanter, and an object of the present invention is to enable steering wheels to be operated by legs.

For example, in a self-propelled riding transplanter, the operator must remove the seedlings from the seedling box and place them on the conveyor of the seedling supply device. Therefore, conventionally,
As shown in Publication No. 6-48804, the left and right foot pedals are interlocked with the four steering wheels, and by pushing one of the foot pedals with your foot, you can move the steering wheels around the vertical axis. It is configured to rotate and perform steering operations.

With conventional steering systems like this, although the operator can place both feet on the foot pedals, both feet must make a pushing motion, so the fulcrum is only the wide area above the driver's seat. The vehicle had poor stability, difficult steering operations, and was easily tiring.

The present invention solves the problems of the conventional device, and its features are as follows: 1lII4 In a self-propelled riding work machine having left and right steering wheels connected together, and left and right ankle parts on which feet can be placed from the driver's seat, at least one of the left and right steering wheels has a wheel mounting shaft having a substantially vertical axis. A steering arm is provided which can be rotated around the vehicle, the free end of which extends above the path of the corresponding footrest and forms a leg engaging portion.

In addition, in the present invention, the term "leg" refers to the lower part of the body from the cold, and the term "leg" refers to the leg from the foot to the thigh, mainly the shin and knee, and the one most suitable for operating the steering arm is: This is the knee and its vicinity.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In Figures 1 to 3, (1) is a traveling working machine, exemplified by a transplanter, with a pair of left and right steering wheels (2) on its front side.
However, on the rear side thereof, a pair of left and right drive wheels (3) are rotatably supported around their respective axles +41 (5+).

(6) is a rectangular-framed aircraft when viewed from above,
The driver's seat (7) is mounted on the driving wheel (3) side of the fuselage (6). The engine is mounted on the driver's seat (7), and the transmission case [91'f: A mounting table (lO) is installed and fixed in an upwardly inclined manner at the rear, and is installed and fixed at the rear of the transmission case (9).
The engine (8) is mounted on the engine (8), and +II) is its fuel tank.

Although not shown, a gear transmission is built into the transmission case (9), and the gear transmission and the engine (8) are interlocked via a wrapped transmission body (I2), and (1) is This is the transmission case of the wrapped transmission body (12), and connects the side wall of the gear transmission case (9) and the side wall of the engine (8).

The output side of the gear transmission in the gear transmission case (9) has a pair of left and right horizontal shafts (14), and a pair of left and right sub-shafts that can swing freely around the horizontal shafts (14) and have a built-in winding power transmission. A transmission case θ6) is provided in a hollow and inclined manner, and the axle (5) is pivotally supported in an outwardly projecting manner at the lower part of each sub-transmission case (15).

(1) is the main clutch, and in this example, the wrapped power transmission body (1) is the main clutch.
2) is a tensile clutch that allows tension and relaxation at will;
As shown in Fig. 1, the tension arm is pivotally attached to the fixed side via the horizontal pivot pin (17) (a tension pulley (19) is rotatably provided at 1→, and tension arm 0)
The winding transmission body 02) is biased in the tensioning direction.

C21 is a brake that controls the gear transmission (2"4 is the brake cam lever, and Al is the brake cam lever.

(c) is a drive wheel lifting device, which includes a fixed guide plate H provided behind the driver's seat (7) and an operating lever that can be freely engaged and fixed to the guide plate (24). , the operating lever (
It consists of an interlocking rod etc. that is pivotally connected to the pair of left and right sub-transmission cases (15) in conjunction with the operating lever (to).
The pair of left and right drive wheels (3) rotates on the horizontal axis (1
4) as a fulcrum and can be raised and lowered in opposite directions, and the raised and lowered positions can be fixed by engaging the operating lever H with the guide plate (24).

Symbol η is a support frame for the steering wheel (2), which is fixed to the front part of the aircraft body (6), and cylinder bodies □□□ are respectively fixed to the left and right ends of the support frame (2η). The body (c) is supported by a wheel mounting shaft of the steering wheel (2) which is rotatable about a substantially vertical axis and can be freely adjusted and fixed in direction, and is connected to a two-way shaft connected to the lower part of the wheel mounting shaft. A steering wheel (2) is removably supported on the holder example via the axle (4), and the steering wheel (2) is supported here by the steering wheel (2).
) is considered to be in caster format.

holder) is a tie rod, and a pair of left and right bifurcated holders (30
), and is pivotally connected between the arms 92 that protrude from the center. The pair of left and right steering wheels (2) are interlocked by this tie rod (31). 0 (3 (6) is a pair of left and right foot rests, and the bracket ( 33a) with a horizontal bar (33b) protruding outward, a clutch pedal (34) is pivotally supported on the left horizontal bar (33b), and a brake pedal (firefly is pivotally supported) on the right horizontal bar (33b). supported.

The left and right footrests (the target is identified with respect to the aircraft (6),
The operator sitting on the driver's seat (7) is in a position where he can rest his feet with his knees slightly bent. However, the bracket (33a) may be configured to be adjustable in its longitudinal position with respect to the body (6).

The clutch pedal (341) and the main clutch (1) tension arm [+81] are interlocked and connected via the Bowden wire (4 (to)), and the heel of the foot (C) is placed on the left footrest (3). Clutch pedal! 341k It is possible to use it in fine weather.

The power of the brake pedal is connected to the cam lever of the brake pedal (1) via the Bowden wire +461' (c), and by pressing the foot (C) placed on the right foot area,
It is configured so that the brake @υ can be operated.

A holder formed of a cylindrical body is fitted and fixed to the upper part of the left wheel mounting shaft (2@), and a setting arm (C) is inserted in two radial directions from the outer peripheral surface of this holder is installed protrudingly.

Each setting arm ta7)@8) is formed with a two-pronged restriction part (3'i'a) (38a) that opens upward at its free end, and when the steering wheel (2) is in the straight position part, the setting arm ta7)@8) Arm height η
is placed slightly outward from the immediate rear, and the setting arm is placed approximately directly outward.

Moreover, the setting arm t371 (3 [
A rotating body (39) is rotatably fitted above 9 with its vertical position regulated, and a bracket is attached to this rotating body (39).
(39a), and the steering arm is pivoted to this bracket (39a) via a pin (39b) so as to be rotatable around a horizontal axis. At the other end of the bar (40a), which is pivotally supported by the rod (39b), there is a pipe material (
40b) and telescopically fit one end of this pipe material (40b).
An arcuate member (4) forming a leg joint @ll at the other end of
0C). The rod material (40g) has multiple holes (40d), the pipe material (40b) has a similar hole (40e) and a screw hole (49f), and the hole (40g) is defined as a hole (4C1θ). Madness Hole (40d)
It matches the screw hole (4Of), and by selecting the hole (40ti), the steering arm +4
(The length of I is adjustable.

The steering arm is equipped with electric wheel mounting 'I'll + 4 and pin (39b
) can be rotated approximately horizontally and vertically, and the middle part of the dual-purpose arm 13711381
Moreover, it can be freely engaged and detached from the regulating portion (3'7a) (38a).

As shown in FIGS. 1 to 3, when the steering arm l4o) is engaged with the bifurcated restriction part (3'i'a) of the setting arm (3), the leg joint part (41 ) is the left footrest (33
), and the operator's leg (D) with the foot (C) resting on the left footrest C3 is placed in a position where the operator can perform a joint BJ, and the operator's leg (D), mainly the knee, is placed in a position where the operator can perform a joint BJ. By engaging with part f411 and swinging the legs (D) left and right, the steering arm! 4
The arm is rotated, and the wheel mounting shaft and the steering wheel (2) are rotated in the same direction as the leg (D) and operated in the opposite direction via the arm (37). This is the posture when working on the steering arm joint.

From the above posture, rotate the vertical arm (41Jb) upwards, rotate it outwards about the wheel mounting shaft, and rotate it downwards about the pin (39b). , as shown by the imaginary line in Figure 2, engages with the bifurcated restriction part (38a) of the setting arm.As a result, the steering arm (38a) protrudes outward from the fuselage (6), and the setting arm (c) The wheel mounting shaft (z9) and the steering wheel (2) are rotated and the steering operation is stopped via the wheel.

This posture of the steering arm j41 is for when it is not working, and when the operator is driving on the road, etc., the transplanter t! When it is not possible to operate the steering operation by riding on the tl+, the operator accompanies the side of the transplanter tl+ and manually operates the steering arm 4 to perform the steering operation.

FIG. 4 shows a modification of the 1 mulberry arm j41, in which the pipe material (40b) is screwed to the bar material (40a), and the length can be adjusted by moving the pipe material (40b) forward and backward. Rock Nut (Mawariichi is done by 4ri.

Figure 5 shows a modification of the mounting part of the steering arm 4.
Holder (2 pipes (44a) radially outward in March)
(44b) is melted and both pipes (44a) (
44b) into which the end of the steering arm (4Q) can be inserted;
A circumferential groove (45a) or a recess is formed at the end, and the butterfly bolt (j5) is inserted into each pipe (44a) (44b).
b) is configured so that removal is achieved by screwing it forward.

The pipe (-¥4a) is for ride steering, and by inserting and fixing the chestnut arm 14α, the steering arm (10)
is the driver's leg (D) in the driver's seat (7): l'*
! The pipe (441)) is used for steering the vehicle, and by removing the steering arm joint from the pipe (44a) and fearing people, it becomes possible to maneuver the vehicle to exit the vehicle.

FIG. 6 shows a second embodiment of the present invention, in which a cylindrical body (28
A support arm σ1) is provided to protrude from the support arm (71) toward the rear outside, and the midway part of the steering arm (40Y) is pivoted to the trowel part of the support arm (71) with a pin (72) so as to be rotatable in the horizontal direction. On the other hand, a lever (13) is fitted and fixed on the wheel mounting shaft, and its free end and the front end of the (eastward arm +40)' are pivotally connected via a pin H and an elongated hole. .

In this second actual sister example, the steering arm (4) is only capable of getting on board and cannot be used for getting off, but the leg joint part (4 Since the steering wheel is steered in the same direction as the steering wheel) 2) via the arm j40)', the steering feeling is good and the operation is easy.

The present invention is not limited to the above-described embodiments and modifications; for example, the steering arm frame may be directly fixed to the wheel mounting shaft I29), or the steering arm may be arranged in pairs on all left and right sides of the steering arm (4 (2)). In addition, when a pair of left and right steering arm frames is arranged, the leg joining part (41) is not formed of a circular arc member (40c), but is formed of a pipe material (40b) or a straight 11', L-shaped member. It is also possible to form it into a shape that abuts one side of each of the left and right Ml (D) using only the bar material.

In addition, in the figure, 1η is a furrower, a decoy is a planting device, (
4! li is a soil covering device, and a planting device decoy is provided behind the trencher (4η), and a soil covering ring (50) of the soil covering device θ9 is provided on the rear side of the planting device 4.

That is, a transplant frame (52) is provided extending rearward in a swingable manner about a horizontal axis (5I) at the front end of the lower abdomen of the fuselage (6), and the link between the transplant frame (6) and the fuselage (6) is In between, there is a bullet carrier (
53) is provided to urge the transplant frame bag in the direction of contact with the ground.

A pair of left and right covering soil rings (50) are rotatably supported via a transplant frame (621 and an inclined horizontal shaft) so that the opposing distance on the ground contact side is narrow and the opposing distance on the non-ground contact side is wide. (M
A planting disk t5i and a planting arm are rotatably provided in front of the inclined horizontal axis (frame 52) via a horizontal horizontal axis, and a rigid horizontal bolt (4) and a horizontal horizontal axis are provided. fll j57
) The entire cutting body is interlocked and connected, and the planting device (state is a product:
+tO is possible.

(5 (f) is a co-feeding device, which is placed in front of the driver's seat (7) and includes a first conveyor (59) that conveys moe (A) horizontally and also clamps and conveys it vertically. Conveyor (Ti9
) to pinch and convey the grass from the plant to the planting device (c).
Conveyor (consisting of 61 #, in this case, υ is wound around the horizontal horizontal shaft (5η) and a pair of left and right bevel gear transmission bodies (621), and the bevel gear transmission body (6υ The second conveyor F61 etc. can be driven once in synchronization with the planting operation.

Historically, (63) was a manual steering wheel with a steering wheel support frame (
27) in a forward-protruding manner, and is located between the upward gear wheels (2), and is connected to the Bowden wire (
A clutch (I) and a brake (21, not shown) can be operated via the 6υ.

HQ[l is the manual clutch operation lever, located on the - side of the driver's seat (7), with Bowden wire (67) and spring (68).
Clutch (1→) can be operated via 1. Also, (the illustration shows the storage box mounting table).

According to the present invention described in detail above, the steering arm (
40), this steering arm! 4 [The free end of the driver's seat (7
), the operator places the foot (C) on the footrest (in the exposed position) and engages the foot (D) with the leg joint [1],
Steering arm! 40) 'jib can be rotated and the wide part and both feet (C) are in a fixed position, so F41
The left and right rocking (D) is extremely simple, allowing for stable and easy steering operations and reducing fatigue.

[Brief explanation of drawings]

1 to 3 show embodiments of the present invention.
2 is an overall plan view of the transplanter, FIG. 3 is a perspective view of the main parts of the steering device, FIG. 4 is a perspective explanatory view showing a modification of the pinching arm, FIG. 5 is a perspective explanatory view showing a modified example of the attachment of the steering arm, and FIG. 6 is a first perspective view of main parts showing a second embodiment of the present invention. °1)...Traveling work iso, (2)...1 quiet direction E1ξ wheel, (3)...51. Agitation, (6)...Aircraft, (7
)...Driver's seat, (27)...4.
吃9)...Wheel removal is very heavy, (31)...Kuirod, (33j...is 1 white', FfB, '37i
(38)...setting arm, j4tl)...steering arm, (41;...leg body joint, (C)...leg, (D)
···leg.

Claims (1)

[Claims] 1. Interlockingly connected left and right steering wheels (2) and driver's seat (
7) In a self-propelled riding work machine having left and right footrests with 0 fathoms on which footrests can be placed, at least one of the left and right steering wheels (2) is mounted so that it can be rotated about a substantially vertical axis. A steering arm section is provided to move the steering arm, and the free end of the steering arm 4 extends above the corresponding footrest section, and a leg engaging section @11 is formed. A self-propelled riding work machine Sabamukai device.