JPH1035548A - Crawler type control machine for riding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfy front visibility, and also secure sufficiently the height of an underfloor in a control machine for riding called as a long-legged control machine, by arranging an engine in the lower part of an occupant seat arranged in the approximately center of the longitudinal direction of a crawler. SOLUTION: A floor 22 made to also serve as a step is stretched on a vehicle frame 20 passed over between a pair of right and left crawlers 10, and a steering handle 24 and an occupant seat 25 are arranged on the floor 22, and also a front hitch 27 and a rear hitch 28 are arranged in the front and rear of the vehicle frame 20. An engine 36 and a transmission 37 are attached on the vehicle frame 20, however, the engine 36 is arranged in a space surrounded by a seat rail 38 and a cowling 39 which support the occupant seat 25. Then, the crawlers 10 are formed in a manner that driving wheels 12 and driven wheels 13 are respectively attached to rear and front parts of side frames 15, and crawler belts 11 are wound around these driving and driven wheels 12, 13, and the vehicle frame 20 is supported on the side frame 15 through a front slide frame 50 and a rear slide frame 60 whose height can be adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a riding management machine called a high-foot management machine.

[0002]

2. Description of the Related Art The need for mechanization of field weeding and digging of potatoes has led to the development of a field management machine. This management machine is an agricultural work machine such as a rotor, a cultivator, and a cultivator. The basic form has been that of pulling a tractor on a tractor. The tractor is well known,
The mainstream is an aircraft having front and rear wheels, an engine at the front, a seat at the rear, and a three-point hitch (a metal fitting for locking the working machine). Since such a tractor is quite heavy, the wheels will set foot on the soil. When hardened, air permeability and water permeability deteriorate, which is not preferable as a field. In order to reduce the contact pressure, it is necessary to consider using a crawler.

A combine using a crawler is known (see Japanese Utility Model Laid-Open No. 49-44706). A combine is a self-propelled machine that simultaneously harvests, thresh, and sorts rice. As is clear from the above-mentioned publication, a grass cutting blade and a cutting blade are provided at the front part to cut rice. The combine progresses over the stump. Therefore, the underfloor height of the combine is not so large.

[0004]

On the other hand, weeding of furrows is an important operation in the management machine. It is not permissible to damage crops planted in the furrow during this operation. Crops are 50-80
It cannot be harvested with a low-floor action machine such as a combine because the height is about 10 cm. Further, the combine disclosed in the above-mentioned publication has a very poor view in front because the occupant seat is located at the rear. Therefore, there is no choice but to manage the tractor with a large wheel diameter and a large underfloor height. However, as described above, the problem that the soil is compacted remains. Also, even with a tractor, the forward view is not good because the engine is in the front.
SUMMARY OF THE INVENTION It is an object of the present invention to reduce the contact pressure, improve the visibility ahead, and sufficiently increase the height under the floor.

[0005]

Means for Solving the Problems To achieve the above object, a first aspect of the present invention is to provide a hitch for attaching a working machine to the front and rear, a floor is provided on a body frame, and an occupant seat is arranged on the floor. In a crawler-type passenger management machine that is self-propelled by power from an engine, an occupant seat is disposed substantially at the center in the longitudinal direction of the crawler, and an engine is disposed below the occupant seat. Since the vehicle is a crawler vehicle, the contact pressure can be sufficiently reduced. The heavy engine is located in the center of the vehicle body and below the occupant seat, so it is well-balanced even if work equipment is attached to the front and back, and since the view to the front can be opened, the visibility in the front improves work efficiency. be able to.

According to a second aspect of the present invention, there is provided a crawler-type passenger management system having a hitch for mounting a working machine on the front and rear sides, a floor provided on an airframe, an occupant seat disposed on the floor, and a self-propelled drive from an engine. The machine is characterized in that drive wheels for driving the crawler are arranged behind and below the engine and the transmission, and a rear hitch can be arranged in front of and above the drive wheels. Since the vehicle is a crawler vehicle, the contact pressure can be sufficiently reduced. Since the rear hitch can be placed sufficiently in front, even if the rear hitch is equipped with a work implement, a large overturning moment does not occur and stable work can be continued.

A third aspect of the present invention is to provide a crawler-type riding management system which includes a hitch for attaching a working machine to the front and rear, places a floor on the body frame, arranges an occupant seat on the floor, and self-propelled by the power from the engine. The machine is characterized in that the body frame is connected to a side frame that supports a driving wheel, a driven wheel, and an idler wheel for winding a crawler through a height adjustment slide frame. Since the vehicle is a crawler vehicle, the contact pressure can be sufficiently reduced. The aircraft frame can be raised or lowered when the height of the floor needs to be changed due to crop type or other reasons. Therefore, the underfloor height can be made sufficiently large.

According to a fourth aspect of the present invention, the transmission member for transmitting torque from the transmission to the drive wheels is surrounded by a transmission case, and the transmission case is fixed to the side frame, so that the transmission case is connected to the connecting member between the side frame and the body frame. It is characterized by being partly made. Since the transmission case is utilized as a connecting member between the side frame and the body frame without being limited to a mere protective case, parts and members can be reduced and the weight can be reduced.

According to a fifth aspect of the present invention, a rear slide frame of the height adjustment slide frames is attached to the transmission case. The transmission case is a member that spans the drive wheels on the crawler side and the transmission on the machine frame side, and the slide frame is also a member that connects the crawler side and the machine frame side. Therefore, if the rear slide frame is fixed to the transmission case, the slide frame can be reduced in size and simplified.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view of a crawler-type riding management device according to the present invention. The crawler-type riding management device 1 includes a pair of right and left crawlers 10, 10 (where the crawler 10 is a crawler belt 11, a driving wheel 12, a driven wheel 13, , Idle wheel 14 ...
(... indicates a plurality. The same shall apply hereinafter.) And side frames 15 that support them. ), The aircraft frame 20 is delivered, the floor 22 serving as a step is set on the aircraft frame 20, and the steering handle 2 is
4 and a passenger crawler vehicle on which the occupant seat 25 is arranged.
This is a management machine provided with a front hitch 27 and a rear hitch 28 before and after the body frame 20. These hitches 27, 28
Has a lift function that raises a work machine (not shown) to an upper position out of the way when traveling on a farm road or a general road.

FIG. 2 is a side view of a crawler-type riding management machine according to the present invention, in which a driving wheel 12 is mounted via a bracket 31 to a rear portion of a side frame 15 in the crawler, and a driving wheel 12 is mounted via a bracket 32 to a front portion. It is shown that the driving wheel 13 is attached, the idler wheels 14 are attached to the lower part via triangular brackets 33, and the crawler belt 11 is wound therearound.

FIG. 3 is an internal structural view of a crawler type riding management machine according to the present invention.
Engine 36 and mission 37 mounted via 5
Is shown. The engine 36 is arranged in a space surrounded by a seat rail 38 for supporting the occupant seat 25 and a cowling 39. 41 is a muffler.

FIG. 4 is a view showing the connection between the side frame and the body frame according to the present invention. The front slide frame 50 and the rear slide frame 6 are attached to the side frame 15.
0 shows a structure in which the body frame 20 is supported via the “0”. The front slide frame 50 is
Fixed frame 51 fixed to the side, and fixed frame 5
A movable frame 52 slidable up and down in sliding contact with 1;
Lock bolts 53 for fixing the moving frame 52 to the fixed frame 51 (... indicates a plurality of bolts. The same applies hereinafter.)
Consists of

A bracket 31 for supporting the drive wheel 12
, The rear part of the transmission case 55 is fixed.
5 is extended obliquely forward and upward, the lower middle portion of the transmission case 55 is firmly fixed to the side frame 15 with the sub-bracket 56, and the rear slide frame 60 is attached to the front inner surface of such a transmission case 55. And

Similar to the front slide frame 50, the rear slide frame 60 includes a fixed frame 61, a movable frame 62 that slides on the fixed frame 61 and can slide up and down. A lock frame 63 fixed to the rear portion of the side frame 15
Is characterized in that the length is significantly smaller than the fixed frame 51 on the front slide frame 50 side.

The transmission case 55 is a protective case surrounding a transmission member composed of a sprocket 58 connected to the universal joint 57, a sprocket (not shown) connected to the drive wheel 12, and a chain 59, but increases the rigidity of the case. As a part of the connecting member between the side frame 15 and the body frame 20, the effect that the length of the rear slide frame 60 can be shortened as described above.

The body frame 20 has two longitudinal beams 20.
a, 20a are crossed with a plurality of cross beams 20b, and cross pipes 65, 66 are fixed to the front and rear of the lower surface. Slide pipes 67,. Slidably mounted, and the ends of these slide pipes 67.
62.

A bracket 71 is erected on the center upper portion of the side frame 15, a feed screw 72 is screwed into the bracket 71, the tip of the feed screw 72 is connected to the longitudinal beam 20a, and the feed screw 72 is turned. Long beam 20a
From the side frame 15, ie, the crawler 1
0 is movable in the vehicle width direction.

FIG. 5 is a cross-sectional plan view of the crawler-type riding management machine of the present invention, and shows cross pipes 65 and 6 attached to the body frame 20 supporting the engine 36 and the transmission 37.
6, pull out the split pins 68.
・ ・ Pull out and move the slide pipes 67... In or out (up and down in the figure), then insert the lock pins 69.
By setting the split pins 68..., The crawler interval can be changed.

A universal joint 5 is provided between the transmission 37 and the sprocket 58 in the transmission case 55.
7, 57 indicates the connection. These universal joints 57 can also change the axial length by spline connection. Therefore, power transmission can be continued even if the distance and the height difference between the transmission 37 and the sprocket 58 in the transmission case 55 change.

FIG. 6 is a plan view of the crawler-type riding management machine of the present invention.
4, 74, left and right of the steering handle 24,
This shows that the rear floor 22 has a sufficient area.

The operation of the crawler-type riding management machine having the above configuration will be described below. FIG. 7 is a schematic side view of a crawler-type riding management machine according to the present invention, and shows a heavy-weight engine 36.
Is disposed substantially at the center of the crawler 10 in the longitudinal direction, so that the center of gravity is substantially at the center. As a result, when a working machine (not shown) is mounted before or after, the front-rear balance does not greatly change.

In the prior art, the rear hitch 28 is generally attached to the tip of a bracket that protrudes greatly rearward from the crawler 10. In this case, when a downward external force acts on the rear hitch 10, the front portion of the fuselage is likely to float. On the other hand, in the present invention, as shown in the figure, since the drive wheels 12 are disposed below and behind the engine 36 and the transmission 37, the rear hitch 28 should be located at a position beyond the drive wheels 12 and close to the transmission 37. Can be. that way,
Even if a downward external force acts on the rear hitch 28, the moment is reduced, and there is no concern that the front part of the fuselage will rise.

FIGS. 8A and 8B are diagrams showing the procedure for changing the floor height of the crawler type riding management machine according to the present invention. The floor height (ground height) when the bottom of the mission 37 is the lowest from the body frame 20 will be described. (A)
It is assumed that the current floor height is H1. When it is necessary to change the floor height, a jack (not shown) is hung on the lower surface of the body frame 20, and the front and rear slide frames 50 and 60 are set in a free state. The body frame 20 may be lifted and lowered by jacks, and the front and rear slide frames 50 and 60 may be fixed at desired positions. Height changes are not always infrequent. That is, since the height is changed according to the type of crop, seasonal change, and the like, it is sufficient to perform the height adjustment work manually as described above. (B) shows that the floor height is H2 (H2
> H1) is shown. It can be seen that the height of the crawler 10 does not change, and that the height of the body frame 20 is increased.

FIGS. 9A and 9B are diagrams showing how to change the crawler interval of the crawler type riding management machine according to the present invention. (A) shows the crawler-type riding management machine 1 set at a relatively narrow interval W1. (B) shows the crawler-type riding management machine 1 in which the feed screws 72, 72 are turned to set a relatively wide interval W2. 8 and 9, the floor height (ground height) and the crawler interval can be freely changed.

The universal joint 57 is
The type of the universal joint is not particularly limited as long as it is a universal joint. The transmission member housed in the transmission case 35 may be a belt-pulley or a gear-shaft.
It is sufficient that the transmission case 35 is a sufficiently rigid box.

[0027]

According to the present invention, the following effects are exhibited by the above configuration. Claim 1 is a crawler-type riding management machine that includes a hitch for attaching a working machine to the front and rear, extends a floor on an airframe, arranges an occupant seat on the floor, and runs self-powered by an engine. The occupant seat is arranged substantially at the center of the crawler in the longitudinal direction, and the engine is arranged below the occupant seat. Since the vehicle is a crawler vehicle, the contact pressure can be sufficiently reduced. The heavy engine is located in the center of the vehicle body and below the occupant seat, so it is well-balanced even if work equipment is attached to the front and back, and since the view to the front can be opened, the visibility in the front improves work efficiency. be able to.

According to a second aspect of the present invention, there is provided a crawler-type passenger management system having a hitch for mounting a working machine on the front and rear sides, a floor mounted on an airframe, an occupant seat disposed on the floor, and a self-propelled drive from an engine. The machine is characterized in that drive wheels for driving the crawler are arranged behind and below the engine and the transmission, and a rear hitch can be arranged in front of and above the drive wheels. Since the vehicle is a crawler vehicle, the contact pressure can be sufficiently reduced. Since the rear hitch can be placed sufficiently in front, even if the rear hitch is equipped with a work implement, a large overturning moment does not occur and stable work can be continued.

According to a third aspect of the present invention, there is provided a crawler-type riding management system which includes a hitch for attaching a working machine to the front and rear, places a floor on the body frame, arranges an occupant seat on the floor, and self-propelled by the power from the engine. The machine is characterized in that the body frame is connected to a side frame that supports a driving wheel, a driven wheel, and an idler wheel for winding a crawler through a height adjustment slide frame. Since the vehicle is a crawler vehicle, the contact pressure can be sufficiently reduced. The aircraft frame can be raised or lowered when the height of the floor needs to be changed due to crop type or other reasons. Therefore, the underfloor height can be made sufficiently large.

According to a fourth aspect of the present invention, the transmission member for transmitting torque from the transmission to the drive wheels is surrounded by a transmission case, and the transmission case is fixed to the side frame, so that the transmission case is connected to the connecting member between the side frame and the body frame. It is characterized by being partly made. Since the transmission case is utilized as a connecting member between the side frame and the body frame without being limited to a mere protective case, parts and members can be reduced and the weight can be reduced.

According to a fifth aspect of the present invention, a rear slide frame of the height adjustment slide frames is attached to the transmission case. The transmission case is a member that spans the drive wheels on the crawler side and the transmission on the machine frame side, and the slide frame is also a member that connects the crawler side and the machine frame side. Therefore, if the rear slide frame is fixed to the transmission case, the slide frame can be reduced in size and simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view of a crawler type riding management machine according to the present invention.

FIG. 2 is a side view of a crawler type riding management machine according to the present invention.

FIG. 3 is an internal structural diagram of a crawler type riding management machine according to the present invention.

FIG. 4 is a view showing an engagement between a side frame and a body frame according to the present invention.

FIG. 5 is a plan sectional view of a crawler type riding management machine of the present invention.

FIG. 6 is a plan view of the crawler type riding management machine of the present invention.

FIG. 7 is a schematic side view of a crawler type riding management machine according to the present invention.

FIG. 8 is a view showing a procedure for changing the floor height of the crawler type riding management machine according to the present invention.

FIG. 9 is a diagram showing a crawler interval changing procedure of the crawler type riding management machine according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Crawler type riding management machine, 10 ... Crawler, 11 ... Crawler belt, 12 ... Drive wheel, 13 ... Follower wheel, 14 ... Idling wheel, 15 ... Side frame, 20 ... Body frame,
22 floor, 24 steering handle, 25 passenger seat, 2
7 ... front hitch, 28 ... rear hitch, 36 ... engine,
37: mission, 50: front slide frame for height adjustment, 55: transmission case, 57: universal joint, 60: rear slide frame for height adjustment, 65, 6
6 Cross pipe, 67 Slide pipe, 69 Lock pin.

Claims (5)

[Claims] Claims 1. A crawler-type passenger management machine having a hitch for attaching a working machine to the front and back, a floor on an airframe, an occupant seat disposed on the floor, and a self-propelled motor driven by an engine. A crawler-type passenger management machine, wherein the occupant seat is disposed substantially at the center in the longitudinal direction of the crawler, and an engine is disposed below the occupant seat. 2. A crawler-type passenger management machine having a hitch for mounting a working machine on the front and rear sides, a floor provided on an airframe, an occupant seat disposed on the floor, and a self-propelled vehicle driven by an engine. A crawler-type riding management machine, wherein drive wheels for driving the crawler are arranged behind and below the engine and the transmission, and a rear hitch can be arranged in front of and above the drive wheels. 3. A crawler-type passenger management machine including a hitch for attaching a working machine to the front and rear, a floor mounted on an airframe, an occupant seat disposed on the floor, and a self-propelled motor driven by an engine. Drive wheels for winding crawlers,
A crawler type wherein the body frame is connected to a side frame that supports a driven wheel and a freewheel through a height adjustment slide frame so that the floor height can be adjusted as necessary. Passenger control machine. 4. A transmission member for transmitting torque from the transmission to the drive wheels is surrounded by a transmission case, and the transmission case is fixed to the side frame, so that the transmission case is part of a connecting member between the side frame and the body frame. 4. The crawler-type riding management machine according to claim 3, wherein: 5. The crawler-type riding management machine according to claim 4, wherein a rear slide frame of the height adjustment slide frames is attached to the transmission case.