JP2006101839A - Riding-type tea garden-tending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding-type tea garden-tending machine, having improved turning ability, providing improved handling, having stabilized balance of a machine body when attaching an attachment and when working at a hillside farm, and enabling the attachment or the like of a large-scale attachment. <P>SOLUTION: The riding-type tea garden-tending machine is obtained by arranging a steering part 30 of a traveling device 18 for driving the machine body 11 and a driving power source 31 at the front side of the upper part of the machine body 11, and forming a space in which the attachment can almost be stored within the whole length of the machine body 11 at the rear side of the upper part of the machine body 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a riding tea garden management machine.

In general, riding type tea garden management machines are attached to the rear part of the machine, such as deep plowing, cultivator, subsoiler, compost application device, fertilizer application device, control machine, etc. This makes it possible to manage tea gardens with a single unit.
As shown in FIG. 7, conventionally, in such a riding type tea garden management machine 1, the left and right lower end portions of the body 2 formed in a frontal portal type to run while straddling the teacup are left and right. A pair of hydraulic travel devices 3 (however, in FIG. 7, only the left side of the machine is shown. The same applies hereinafter), and at the rear part of the machine 2, at least any one of fertilizer, compost, and chemicals is used. A pair of left and right hydraulic lifting devices 6 for moving up and down an attachment 5 (hereinafter simply referred to as an attachment) having a spraying device 4 for spraying one of them is disposed. In the upper part of the machine body, a steering unit 7 for operating the traveling device 3, the spraying device 4 of the attachment 5 and the lifting device 6, an engine 8 as a drive source, and a hydraulic pump 9 are disposed. In the state where the tea garden management work is performed while moving along the teacup, the attachment 5 is appropriately moved up and down by the lifting device 6, and the attachment 5 does not interfere with the teacup when turning between the teacups. It was raised so as to be higher than the teacup (for example, see Patent Document 1).

However, in the above-described conventional riding type tea garden management machine, as shown in FIG. 7, the engine 8 and the hydraulic pump 9 occupy the upper part of the machine body in the vertical direction because of the vertical layout extending in the machine body longitudinal direction. Therefore, there was a problem that the attachment 5 had to be mounted in a state where the attachment 5 was projected and supported to the rear of the body.
And, since the attachment 5 is mounted in a state of projecting and supporting the rear of the aircraft, (1) When the attachment 5 is attached, the overall length of the aircraft is increased, and the turning ability and handling between the furrows are insufficient. (3) The center of gravity of the fuselage is large and the balance of the fuselage is easily lost as the attachment 5 is raised. (4) Large control equipment and large items that require a large chemical tank are transported. The problem is that it is difficult to install the transport vehicle unit.

Japanese Patent Laid-Open No. 2002-159 211

  Accordingly, the present invention has been made to solve the above-described problems of the prior art, and is intended to improve the turning performance and handling, and to stabilize the balance of the airframe when the attachment is mounted and on an inclined ground. The purpose of the present invention is to provide a riding-type tea garden management machine that can be installed, and can be equipped with a large attachment.

In order to achieve the above object, the invention according to claim 1 is a riding type tea garden management machine including a machine body to which an attachment for performing tea garden management work is detachably attached.
The airframe is formed in a gate shape so as to travel while straddling a teacup, and a pair of left and right travel devices are disposed at the left and right lower end portions of the airframe, and a control unit and a drive source of the travel device are provided. By being arranged on the front side of the upper part of the fuselage, a space is formed in the rear of the control unit and the drive source so that the attachment can be accommodated within the entire length of the fuselage.

In order to achieve the above object, in addition to the configuration of the invention described in claim 1, the invention described in claim 2 is configured such that the control unit is disposed on one side of the upper part of the body,
The drive source is arranged on the other side of the upper part of the machine body.

  In order to achieve the above object, according to a third aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the drive source is disposed sideways and on the axis of the output shaft of the drive source. Is characterized in that a pilot seat on which an operator is seated is arranged.

  In order to achieve the above object, the invention described in claim 4 is driven directly by the output shaft of the drive source between the drive source and the cockpit in addition to the configuration of the invention described in claim 3. And a hydraulic pressure generator for supplying hydraulic pressure to the traveling device.

  In order to achieve the above object, according to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect of the present invention, the hydraulic pressure generating device and the hydraulic pressure generating device for attaching an oil pressure to the attachment have the same drive. Driven by a source.

  In order to achieve the above object, in addition to the configuration of the invention described in claim 1, the attachment described in claim 6 includes a spraying device that sprays at least one of fertilizer, compost, and chemical solution. It is an attached attachment.

According to the first, second, and sixth aspects of the present invention, an attachment including a spraying device that sprays at least one of fertilizer, compost, and chemical liquid projects out of the attachment as in the past. Rather than being mounted in a supported state, it is placed on the rear side of the upper part of the aircraft so as to fit within the overall length of the aircraft. Thereby, even if the attachment is placed, the overall length of the machine body is not substantially changed, so that it is possible to improve the turning performance and handling between the furrows. Moreover, since the attachment is always located at the upper part of the machine body, that is, above the teacup, it is not necessary to provide the machine with a lifting device for raising and lowering the attachment, and the machine body can be reduced in weight and cost. In addition, since the attachment is placed close to the center of the aircraft, the center of gravity movement of the aircraft when the attachment is attached to the aircraft is greatly reduced, and the balance of the aircraft can be stabilized when the attachment is mounted and on an inclined ground. .
Furthermore, by providing a space in the rear part of the upper part of the machine body, it becomes possible to easily place a large control machine that requires a large chemical tank and a transporter unit that transports long objects. Usability of the management machine can be further improved.

  According to the third to fifth aspects of the present invention, the unevenness of the airframe balance when a heavy drive source is mounted on one side of the airframe is almost eliminated by the operator sitting on the cockpit on the opposite side of the airframe. Thereby, in addition to the function and effect of the first aspect of the invention, the right and left weight distribution of the airframe is substantially equal, so that the balance of the airframe at the time of traveling becomes better and the traveling stability can be further improved.

  By arranging the control unit and the drive source of the traveling device that travels the aircraft on the front side of the upper part of the aircraft, forming a space on the rear side of the aircraft that can be placed so that the attachment is almost within the overall length of the aircraft, A riding-type tea garden management machine has been realized that has good turning performance and handling, and that can be mounted with a large attachment without impairing the balance of the machine.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of a riding type tea garden management machine to which the present invention is applied, FIG. 2 is a front view of the example, FIG. 3 is a side view of the example, and FIG. 4 is a frame structure of the machine body of the example FIG. 5 is a perspective view of the attachment receiving portion, and FIG. 6 is a side view showing an example of placing the attachment in the same example.

A riding type tea garden management machine to which the present invention is applied will be described.
As shown in FIGS. 1 to 4, the body 11 of the riding-type tea garden management machine 10 has a pair of front and rear frames 12 formed in a frontal view so as to be able to run while straddling the teacup. , 13 are opposed to each other in a state of being separated in the longitudinal direction of the body. The lower ends of the vertical left and right legs 12a and 13a of the front and rear frames 12 and 13 are bifurcated (see FIGS. 2 and 4), and a pair of horizontal left and right facing the longitudinal direction of the machine body. It is fixedly coupled to the lower connecting frame 14 (see FIG. 3; however, in FIG. 3, only the left side of the aircraft is shown. The same applies hereinafter).

  As shown in FIG. 3, the lower connection frame 14 is provided with a hydraulic traveling device 18 in which a crawler 17 is wound between a driving wheel 15 and a driven wheel 16, and above the traveling device 18. A hydraulic tank 19 (see FIG. 2) for supplying hydraulic pressure to the hydraulic actuator, or a fuel tank 20 for supplying fuel to a drive source described later is attached and fixed. The traveling device 18 is not limited to the one using the crawler 17 and may be one using a wheel, a rail type or the like, for example.

  Further, as shown in FIG. 4, a pair of left and right upper connecting frames 21 extending horizontally in the front-rear direction of the vehicle body are provided on the left and right upper portions (bent portions) of the front and rear frames 12 and 13, respectively. It is integrally coupled and fixed in a state of projecting forward of the aircraft from 12 and without projecting rearward of the rear frame 13 from the rear frame 13.

  These upper connection frames 21 are configured to include first to third connection frames 22 to 24 that are elongated by being connected to each other, and the first connection frame is formed at a bent portion of the front frame 12. The central portion of 22 is fixedly coupled. Horizontal horizontal frames 25, 26 facing the width direction of the machine body are coupled and fixed between the left and right front end portions and between the left and right rear end portions of the first connection frame 22, and the horizontal frames 25, 26 and the front frame 12 are fixed. Stiffening frames 27 to 29 facing in the longitudinal direction of the machine body are coupled and fixed to the horizontal lateral portion 12b. In addition, a pair of left and right second connection frames 23 facing in the longitudinal direction of the fuselage are coupled and fixed between the left and right end portions of the rear surface of the horizontal frame 26 and the horizontal horizontal portion 13b of the rear frame 13. A pair of left and right third connection frames 24 are coupled and fixed between the center of the side surface portion of the one connection frame 22 and the bent portion of the rear frame 13 in a state of protruding in a substantially U-shape to the side of the body.

  As shown in FIGS. 1 to 3, on the upper part of the aircraft between the horizontal frame 25 at the front end of the aircraft and the horizontal frame 26 at the center of the aircraft, there is a control unit 30 of the traveling device 18 and an engine 31 as a drive source. And an attachment 32 (shown in FIG. 6; here, a spraying device for spraying at least one of fertilizer, compost, and chemicals). A large space 32 that can be placed is formed so that the large attachment 32 provided with 33) fits within the entire length of the machine body.

  As shown in FIG. 1, the control unit 30 is arranged close to the upper part of the body and the right side of the front part of the body, and is a plate laid between the horizontal frame 25 and the front frame 12. And a handle 35 having a T-shape when viewed from the front. The control unit 30 includes a control unit that stores and displays travel history information by GPS (Global Positioning System), for example, travel distance information, travel speed information, and the like, and can transmit the travel history information via a communication line. And a display unit. Further, the control unit may display the spraying amount of fertilizer, compost, chemicals, etc. on the display unit based on the travel history information, or may display the rotation speed of a stirring screw (not shown) of the spraying device 33 described later. It is possible.

  Further, a control seat 36 for an operator to sit on is disposed between the front frame 12 and the lateral frame 26, that is, in the vicinity of the front-rear center of the aircraft, so as to face the control unit 30. Further, the third connecting frame 24 on the side of the control unit 30 is provided with a foldable step 37 that is extended and supported on the outer side of the aircraft, and as shown in FIGS. Even if a stiffening frame 38 having an inverted U-shape in front view is provided, the operator can easily move from the cockpit 36 to the rear of the aircraft without getting down on the ground. In addition, although the operation part 30 for attachment (not shown) for operating the attachment 32 is attached to the control part 30 of the traveling apparatus 18, it is not limited to it, For example, after the cockpit 30 You may make it provide the operation part for attachments in the side.

  The engine 31 is disposed close to the upper part of the fuselage and on the left side of the front part of the fuselage, and is mounted between the front frame 12 and the lateral frame 26, that is, close to the longitudinal center of the fuselage and laterally. ing. A hydraulic pump 39 for supplying hydraulic pressure to the traveling device 18 is directly connected to the output shaft of the engine 31 through the transmission 40, and the hydraulic pump 39 includes the engine 31, the cockpit 36, and the like. The cockpit 36 is arranged on the axis of the output shaft of the engine 31. As a result, the deviation of the balance of the fuselage when the heavy engine 31 is mounted on one side (left side) of the fuselage is eliminated by the operator sitting on the cockpit 36 on the opposite side (right side) of the fuselage. As a result, the right and left weight distribution of the airframe 11 becomes substantially equal, so that the airframe balance during travel is good and travel stability is further improved.

  Further, as shown in FIGS. 2 and 3, the engine 31 is covered with a box-type engine cover 42 in which a ventilation portion 41 is formed. A radiator 43 that cools engine coolant is disposed inside the engine cover 42, and an air cleaner 44 and an exhaust pipe 45 are disposed above the engine cover 42. Further, as shown in FIGS. 1 and 3, hydraulic oil discharged from the hydraulic pump 39 and an attachment hydraulic pump 46 to be described later and used for the traveling device 18 and the hydraulic actuator is disposed on the front side of the engine cover 42. An oil cooler 47 for cooling is provided.

  The attachment hydraulic pump 46 is for operating the hydraulic spraying device 33 of the attachment 32, and is arranged in parallel with the front side of the machine body of the hydraulic pump 39 (see FIG. 1). The attachment hydraulic pump 46 is driven by the engine 31 that drives the hydraulic pump 39, and the driving force of the driving pulley 48 provided on the hydraulic pump 39 side is attached via the belt 49 to the attachment hydraulic pump. It is driven by being transmitted to a driven pulley 50 provided on the 46 side.

  Meanwhile, as shown in FIG. 4, a pair of left and right fixed or detachable attachment receiving parts 51 for detachably mounting the attachment 32 on the rear part of the machine body is formed at the rear part of the machine body where the space S is formed. , 52 are arranged. These attachment receiving portions 51 and 52 have engaging portions 53 that are recessed in a trapezoidal shape when viewed from the side, and below the body attached to the lower frame 32C of the attachment 32 with respect to the engaging portions 53. A convex engaging pin 32D extending to the side can be engaged and disengaged in the vertical direction of the machine body. The fixed attachment receiving portions 51 are respectively disposed on the side surfaces of the left and right third connection frames 24 in the body, that is, on the side surfaces facing the second connection frames 23, and the removable attachment receiving portions 52. Is attached in a state of projecting rearward from the left and right sides of the rear surface portion of the rear frame 13.

As shown in FIG. 6, the attachment 32 placed on the rear part of the machine body is, for example, a main body (bucket, hopper) 32A into which compost is introduced and compost in the main body 32A downward. A pair of left and right sliders 32B that can be discharged and a pair of left and right hydraulic spraying devices 33 that spray the compost transferred through the sliders 32B while stirring with a stirring screw.
Further, as shown in FIG. 4, an engagement pin 32 </ b> D extending to the lower side of the machine body is attached to the lower frame 32 </ b> C of the attachment 32, and these engagement pins 32 </ b> D are engaged with the attachment receiving portions 51 and 52. Engaging with the joint portion 53 facilitates positioning when mounting the attachment 32 and stabilizes the posture after mounting. The attachment 32 to the machine body 11 is preferably mounted on the rear part of the machine body by a mounting means such as a forklift, but is not limited thereto. The attachment 32 placed on the rear part of the machine body is fixed to the machine body 11 by fixing means (not shown), and the main body part 32A is within the entire length of the machine body, in other words, within the range from the horizontal frame 25 to the rear end of the crawler 17. Is in the range. Further, the spraying device 33 is located behind the traveling device 18.

  When performing the tea garden management work using the riding type tea garden management machine 10 to which the large attachment 32 is attached as described above, the operator first operates the machine body so as to straddle the tea bowl after entering the tea garden. Then, the operator operates the attachment operation unit while operating the machine body 11 along the teacup and operates the spraying device 33 to spray compost between the straws. Eventually, when the machine body 11 reaches the headland and the work of the row of teacups is completed, the operator stops the operation of the spraying device 33 and then changes the direction. In this case, unlike the conventional case, since the attachment 32 is not raised, the center of gravity of the airframe is not moved, and the attachment 32 is within the overall length of the airframe. The machine body 11 can be turned in a very stable manner without interfering with the teacup. Then, the operator who turns the machine body 11 moves to the adjacent teacup and performs tea garden management work.

As described above, according to the present invention, the large attachment 32 provided with the spraying device 33 for spraying at least one of fertilizer, compost, and chemical liquid is attached to the rear of the body as in the past. Rather than being mounted in an overhanging supported state, it is placed on the rear side of the upper part of the aircraft so as to fit within the overall length of the aircraft. Thereby, even if the large attachment 32 is placed, the overall length of the machine body is not substantially changed, so that it is possible to improve the turning performance and handling between the furrows. Moreover, since the attachment 32 is always located at the upper part of the machine body, that is, above the teacup, it is not necessary to provide the machine body 11 with a lifting device for raising and lowering the attachment 32, and the machine body 11 can be reduced in weight and cost. . In addition, since the attachment 32 is placed close to the center of the body, the movement of the center of gravity of the body 11 when the attachment 32 is placed on the body 11 is significantly reduced, and the balance of the body is stabilized when the attachment is mounted and on an inclined ground. Can be achieved.
Furthermore, by providing a space S at the rear of the upper part of the fuselage, it becomes possible to easily place a large control machine that requires a large chemical tank and a transporter unit that transports long objects. Usability of the tea garden management machine 10 can be further improved.

  In addition, according to the present invention, the unevenness of the balance of the airframe when the heavy engine 31 is mounted on one side of the airframe is eliminated by the operator sitting on the cockpit 36 on the opposite side of the airframe. Thereby, the right-and-left weight distribution of the airframe 11 becomes substantially equal, so that the airframe balance at the time of traveling becomes better, and traveling stability can be further improved.

  In addition, this invention is not applied only to a riding-type tea garden management machine, For example, it can apply also to an agricultural machine, a civil engineering construction machine, etc. to which a large attachment is replaced.

It is a top view of the riding type tea garden management machine to which this invention was applied. It is a front view in the example. It is a side view in the example. It is the perspective view which showed the frame structure of the body in the example. It is a perspective view of an attachment receiving part. It is the side view which showed one example of mounting of the attachment in the example. It is a side view of the conventional riding type tea garden management machine.

Explanation of symbols

S space 10 riding type tea garden management machine 11 machine body 12 front frame 13 rear frame 18 traveling device 30 control unit 31 engine (drive source)
32 Attachment 33 Spraying device 39 Hydraulic pump 46 Attachment hydraulic pump

Claims (6)

In a riding type tea garden management machine equipped with a machine body to which an attachment for performing tea garden management work is detachably attached,
The airframe is formed in a gate shape so as to travel while straddling a teacup, and a pair of left and right travel devices are disposed at the left and right lower end portions of the airframe, and a control unit and a drive source of the travel device are provided. A riding type characterized in that, by being arranged on the front side of the upper part of the fuselage, a space in which the attachment can be placed within the overall length of the fuselage is formed behind the control unit and the drive source. Tea garden management machine.   2. The riding tea garden according to claim 1, wherein the control unit is disposed on one side of the upper part of the machine body, and the drive source is disposed on the other side of the upper part of the machine body. Management machine.   2. The riding type according to claim 1, wherein the driving source is disposed sideways, and a cockpit seat on which an operator is seated is disposed on an axis of an output shaft of the driving source. Tea garden management machine.   4. A hydraulic pressure generating device that is directly driven by an output shaft of the driving source and supplies hydraulic pressure to the traveling device is disposed between the driving source and the cockpit. Riding type tea garden management machine.   5. The riding tea garden management machine according to claim 4, wherein the hydraulic pressure generating device and the attachment hydraulic pressure generating device that supplies hydraulic pressure to the attachment are driven by the same drive source.   The riding-type tea garden management machine according to claim 1, wherein the attachment is an attachment including a spraying device that sprays at least one of fertilizer, compost, and chemicals.

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