Riding auxiliary cart and walking type straddling cultivator equipped with said riding auxiliary cart

Abstract

To provide a sulky auxiliary bogie on which a user can freely ride and get off while performing handle operation in upland farming work, and a walking type furrow straddling management machine mounting the same thereon.SOLUTION: There is provided a sulky auxiliary bogie 10 mounted on a walking type furrow straddling management machine 40. The sulky auxiliary bogie comprises: travel wheels 12 on a lower part of a flat plate-shaped stool 11; and coupling means 15 which extends forward from the stool 11 and is rotatably coupled to a position on a rear side of either one of left and right rear auxiliary wheels 41 provided on the walking type furrow straddling management machine 40.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a ride-on auxiliary cart, and more particularly to a ride-on auxiliary cart that is attached to a walk-behind furrow-spanning cultivator, and a walk-behind furrow-spanning cultivator equipped with the ride-on auxiliary cart. [Background technology]

[0002] Conventionally, when performing field crop management work, it was common to use a cultivator to complete each furrow one row at a time, but in order to improve workability, a ride-on type straddling cultivator has been provided that can complete two furrows at the same time. Ride-on row cultivators require a driver's seat, resulting in a large-scale mechanical structure. In addition, when getting into the seat, the operator must shift his or her weight several times, for example by lifting both feet to the main frame floor or bending over to sit down, which increases the cost of the machine and the labor burden on the operator associated with getting on and off the machine.

[0003] Incidentally, as a conventional ride-on type straddling-ridge cultivator, for example, a "transplanter" (Patent Document 1) has been proposed that reduces the amount of work during transplanting and allows one operator to perform the planting work, and is a publicly known technique. Specifically, this is a ride-on transplanter in which a transplanting device for planting seedlings in the ridges is supported on a running body that runs across the ridges and a steering handle is provided on the rear side, and a towing cart with its front part pivoted on a vertical shaft is connected to the rear side of the running body, and the towing cart is provided with wheels that run across the ridges and a riding section behind the steering handle for the operator to ride on.

[0004] However, this proposed "transplanter" has a large mechanical structure due to the inclusion of a driver's seat, and when getting in, the operator must raise both feet onto the main frame floor and then bend over to get into the driver's seat, which requires the operator to shift his or her weight several times when getting in and out of the vehicle. This does not solve the above-mentioned problems of increased machine costs and increased labor burden associated with getting in and out of the vehicle.

[0005] As an alternative to such ride-on type ridge-spanning management machines, the present applicant has proposed a "walk-behind ridge-spanning high ridge forming machine" (Patent Document 2) that can simultaneously form the ridge it spans and the sides of the ridges on both sides of the ridges. Specifically, the front drive shaft support has long, cylindrical front legs that exceed the ridge height protruding diagonally forward and downward at the left and right outer ends, and the rear drive shaft support that is adjacent and parallel to the drive shaft support has long, cylindrical rear legs that exceed the ridge height protruding downward at the outer end, and a rotating shaft of a ridge pressing part that raises and lowers the ridge pressing board toward the ridges is pivotally attached to the lower part of both front legs, front feet protrude from the front of the lower part of both front legs and a rotating shaft of a rotary part that rotates the scraping claws provided at the front ends is pivotally attached, a rotating shaft that rotates the crawlers is pivotally attached to the lower part of both rear legs, an engine is mounted on the rear left side of the rear drive shaft support and a handle protrudes rearward on the right side, and a transmission with a clutch is provided in the center of the rotating drive shaft built into the front and rear drive shaft supports.

[0006] However, this proposal for a "walk-behind type ridge-spanning high ridge forming machine" still does not solve the above-mentioned problem of increased workload on the worker, since the worker is forced to walk as the machine propels itself.

[0007] The applicant focused on improving the workability of operators when using a furrow-spanning cultivator, and came up with the idea of ​​providing a walk-behind type furrow-spanning cultivator that can be mounted and dismounted at will while operating the handlebars. He developed a ride-on auxiliary cart that is towed by the furrow-spanning cultivator and self-propelled, and that can be mounted and dismounted at will while operating the handlebars, leading to the proposal of the "ride-on auxiliary cart and walk-behind type furrow-spanning cultivator fitted with said ride-on auxiliary cart" of the present invention. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] JP 2011-125275 A [Patent Document 2] JP 2019-83717 A Summary of the Invention [Problem to be solved by the invention]

[0009] In view of the above problems, the present invention has an object to provide a ride-on auxiliary cart that can be freely mounted and dismounted while operating the handlebars when performing field crop work using a walk-behind furrow-spanning cultivator, and a walk-behind furrow-spanning cultivator equipped with the ride-on auxiliary cart. [Means for solving the problem]

[0010] In order to solve the above problems, the present invention provides a ride-on auxiliary cart that is attached to a walk-behind furrow-spanning cultivator, which has running wheels located at the lower part of a flat platform and is equipped with a connecting means that extends forward from the platform and is rotatably connected to a position rearward of either the left or right rear auxiliary wheel of the walk-behind cultivator, and during field crop work, the cart is towed by the walk-behind furrow-spanning cultivator and self-propelled, and the means allows the user to get on and off as desired by operating the handlebars.

[0011] The riding auxiliary cart according to the present invention also employs a means in which a grip portion is provided on the rear of the footrest. Furthermore, the riding auxiliary cart according to the present invention employs a means in which the width of the step is narrower than the width of the furrows.

[0012] Furthermore, the present invention provides a walk-behind furrow-straddling cultivator equipped with the above-mentioned ride-on auxiliary cart, in which a connecting means for the ride-on auxiliary cart is rotatably connected to one of the left and right rear auxiliary wheels.

[0013] Furthermore, the walk-behind furrow-straddling cultivator of the present invention employs a means comprising a biasing means for assisting the upward rotation of the ride-on auxiliary carriage.

[0014] Furthermore, the walk-behind furrow-spanning cultivator of the present invention employs a means comprising a tethering means capable of tethering the ride-on auxiliary cart in an upwardly rotated state. Effect of the Invention

[0015] According to the ride-on auxiliary cart and the walk-behind-ridge cultivation machine equipped with the ride-on auxiliary cart of the present invention, the ride-on auxiliary cart is towed by the walk-behind-ridge cultivation machine and self-propelled, and the operator can get on and off at will by operating the handlebars. The operator rides on the ride-on auxiliary cart in a standing position, making it easier to move between rows, and the operator's line of sight is higher by the height of the cart, making it easier to check the work status using the walk-behind-ridge cultivation machine in front and the condition of the entire crop, providing the excellent effects of:

[0016] Furthermore, according to the ride-on auxiliary cart and the walk-behind furrow-spanning cultivator fitted with the ride-on auxiliary cart of the present invention, the ride-on auxiliary cart is rotatably connected to the walk-behind furrow-spanning cultivator, so that it can be easily stored when not in use; furthermore, a handle is provided at the rear of the platform for manually rotating it, and a biasing means is provided to assist upward rotation, so that the ride-on auxiliary cart can be easily taken in and out when in use and when stored, providing such excellent effects.

[0017] Furthermore, according to the ride-on auxiliary cart and the walk-behind furrow-spanning cultivator equipped with the ride-on auxiliary cart of the present invention, a tethering means is provided that can tether the ride-on auxiliary cart to the connecting pole of the walk-behind furrow-spanning cultivator when it is rotated upward, thereby providing the excellent effect of preventing the ride-on auxiliary cart from rotating downwards from a stored state to a used state on its own, and reliably maintaining the stored state when not in use, thereby contributing to safety. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is an explanatory diagram showing an embodiment of a riding auxiliary cart and a walk-behind furrow-spanning cultivator according to the present invention. [Diagram 2] FIG. 2 is an explanatory diagram showing the riding auxiliary cart and the walk-behind furrow-spanning cultivator according to the present invention in use. [Diagram 3] FIG. 11 is an explanatory diagram showing another embodiment of the riding auxiliary cart according to the present invention. [Figure 4]FIG. 11 is an explanatory diagram showing another embodiment of the riding auxiliary cart and the walk-behind furrow straddling cultivator according to the present invention. [Diagram 5] FIG. 11 is an explanatory diagram showing another embodiment of the riding auxiliary cart and the walk-behind furrow straddling cultivator according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The greatest feature of the ride-on auxiliary cart 10 of the present invention is that it can be towed and self-propelled by attaching it to the walk-behind furrow-spanning cultivator 40, and also employs a means for allowing it to be rotated upward and stored when not in use. Hereinafter, an embodiment of the ride-on auxiliary cart 10 and the walk-behind furrow-spanning cultivator 40 according to the present invention will be described with reference to the drawings.

[0020] Furthermore, the ride-on auxiliary cart 10 and the walk-behind furrow-spanning cultivator 40 of the present invention are not limited to the embodiments described below, and can be modified as appropriate within the scope of the technical concept of the present invention, i.e., within the scope of shapes, dimensions, and structures that can achieve the same functional effects.

[0021] FIG. 1 is an explanatory diagram showing an embodiment of a riding auxiliary cart 10 and a walk-behind ridge-spanning cultivator 40 according to the present invention, where (a) is an overall perspective view showing a state in which the riding auxiliary cart 10 is attached to the walk-behind ridge-spanning cultivator 40, and (b) is an overall perspective view of the riding auxiliary cart 10. FIG. 2 is an explanatory diagram showing a state in which the riding auxiliary cart 10 and the walk-behind ridge-spanning cultivator 40 according to the present invention are used, where (a) is a side view and (b) is a rear view. FIG. 3 is an explanatory diagram showing another embodiment of the riding auxiliary cart 10 according to the present invention. And FIG. 4 and FIG. 5 are explanatory diagrams showing other embodiments of the riding auxiliary cart 10 and the walk-behind ridge-spanning cultivator 40 according to the present invention, respectively.

[0022] The ride-on auxiliary cart 10 of the present invention is attached to a walk-behind furrow-spanning cultivator 40 and is mainly composed of a step 11, running wheels 12, and connecting means 15. The step 11 is flat and is formed with a shape and size that allows the worker M to stand on the upper surface. If the width of the step 11 is wider than the width of the furrow R, the side part of the step 11 may come into contact with the furrow U when moving across the furrow R, causing the furrow U to collapse or becoming an obstacle when towing with the walk-behind furrow-spanning cultivator 40. Therefore, it is preferable that the width of the step 11 is formed narrower than the width of the furrow R. In addition, a running wheel 12 is arranged on the lower part of the step 11 to enable the worker M to move while being towed by the walk-behind furrow-spanning cultivator 40 while standing on the step 11. The running wheel 12 is composed of one or more flat tires for agricultural work. Furthermore, a connecting means 15 for connecting the riding auxiliary cart 10 to the walk-behind furrow-spanning cultivator 40 is provided in the front area of ​​the step 11. It is preferable that the upper surface of the step 11 is provided with an anti-slip means to prevent the worker M from slipping.

[0023] The connecting means 15 connects the riding auxiliary cart 10 and the walk-behind furrow-spanning cultivator 40, and is not particularly limited in its specific structure as long as it can rotatably connect the riding auxiliary cart 10 to the rear auxiliary wheels 41 of the walk-behind furrow-spanning cultivator 40. For example, as shown in the figure, it can be configured to be composed of a connecting rod 13 and a pivot 14. The connecting rod 13 is one or two rods or plates extending forward from the footstool 11, with its base end fixed to the footstool 11 and its tip end pivotally supported by the pivot 14. The pivot 14 is fixed to the lateral region of the rear auxiliary wheels 41 of the walk-behind furrow-spanning cultivator 40 described later, and is fixed, for example, coaxially with the rotating shaft of the rear auxiliary wheels 41 or to the side wall of the cover material of the rear auxiliary wheels 41. This allows the connecting rod 13 to rotate about the pivot portion 14, and therefore the footstool 11 fixed to the connecting rod 13 is configured to be rotatable via the pivot portion 14. The length of the connecting rod 13 is long enough to avoid the rear auxiliary wheels 41 of the walk-behind furrow cultivator 40 and a foot step 43 (described later) when the footstool 11 is rotated. When two connecting rods 13 are provided, they are provided extending forward from the footstool 11 so as to sandwich the rear auxiliary wheels 41 on both sides.

[0024] The worker M will grip the rear region of the platform 11 with his / her hands and rotate it up and down. Therefore, a preferred embodiment is one in which a grip portion 16 is formed at the rear of the platform 11, as shown in Fig. 3. The grip portion 16 may be formed by hollowing out the rear region of the platform 11 in an oblong shape as shown in the figure, or it may be formed by bending a round bar into a U-shape and fixing it to the rear end of the platform 11 by welding or the like (not shown), or by providing an uneven anti-slip treatment on the upper and lower surfaces of the rear region of the platform 11. In this way, by providing the grip portion 16 at the rear of the step stool 11, it is possible to facilitate the operation of taking out the step stool 11 and rotating it when storing it, and also to prevent the risk of the step stool 11 slipping off due to a slip of the hand.

[0025] The riding auxiliary cart 10 according to the present invention having the above-mentioned configuration is attached to a walk-behind furrow-spanning cultivator 40. The walk-behind ridge-spanning cultivator 40 to which the riding auxiliary cart 10 is attached is, for example, a "walk-behind ridge-spanning high ridge forming machine" as shown in Patent Document 2, and of the front and rear drive shaft supports which respectively support the front and rear rotary drive shafts which transmit the rotation of the engine to the left and right via a transmission equipped with a clutch, the front left and right drive shaft supports have longitudinally elongated cylindrical front legs which exceed the ridge height protruding diagonally downward and forward from their outer ends, the rear left and right drive shaft supports have longitudinally elongated cylindrical rear legs which exceed the ridge height protruding downward from their outer ends, and the lower parts of the left and right front legs have ridge veneers on both sides which are inclined in an inverted V shape toward the ridge side on both left and right sides, which are raised and lowered to press against the raked soil. The rotating shaft of the ridge pressing part is pivotally mounted to the front of the lower parts of both front legs, and front feet are protruding from the front of the lower parts of both front legs to pivotally mount the rotating shaft of a rotary part which rotates both scraping claws at the front ends of the front feet which scrape up soil in the ridge furrow R onto the sides of the ridges, and both front legs and both front feet are fitted with rotation transmission members which transmit the rotation of the front rotating drive shaft to the rotating shaft of the ridge pressing part and the rotary part. The lower parts of the left and right rear legs are pivotally mounted with rotation shafts which rotate the running wheels or crawlers, and both rear legs are fitted with rotation transmission members which transmit the rotation of the rear rotating drive shaft to the rotating shaft of the running wheels or crawlers. An engine is mounted at the rear of the rear drive shaft support, and a handle operating part 45 is protruding rearward on either the left or right side.

[0026] Both sides of the walk-behind furrow-spanning cultivator 40 are provided with rod-shaped side frames 42 extending forward and backward, and height-adjusting lever rods 44 are provided at the rear ends of the side frames 42 extending upward and downward, and rear auxiliary wheels 41 each equipped with a footrest step 43 are connected to the lowest ends of the height-adjusting lever rods 44. As a result, the rear auxiliary wheels 41 are respectively disposed behind the rear legs on both the left and right sides of the walk-behind furrow-spanning cultivator 40. The rear auxiliary wheels 41 are the landing points of the walk-behind furrow-spanning cultivator 40 that is tilted backward when the operator M steps on the footrest step 43 to lift the tip of the walk-behind furrow-spanning cultivator 40.

[0027] The riding auxiliary cart 10 according to the present invention is connected to the rear of the rear auxiliary wheel 41 on the side on which the handle operation unit 45 is protruding, via the connecting means 15, among the rear auxiliary wheels 41 on both the left and right sides of the walk-behind ridge-spanning cultivator 40. That is, the pivot part 14 is fixed to the lateral region of the rear auxiliary wheel 41 on the side on which the handle operation unit 45 is protruding, and the base end of the connecting rod 13, which rotatably supports the pivot part 14 at its tip, is fixed to the front of the footstool 11, so that the riding auxiliary cart 10 is rotatably connected to the walk-behind ridge-spanning cultivator 40. As a result, the operator M can operate the handle of the walk-behind ridge-spanning cultivator 40 while standing on the footstool 11 during field work, and the riding auxiliary cart 10 can be rotated upward and stored when not in use.

[0028] The manner of use of the ride-on auxiliary cart 10 and the walk-behind furrow-spanning cultivator 40 according to the present invention configured as described above will be described with reference to FIG. First, the riding auxiliary cart 10 connected to the rear auxiliary wheel 41 on the side where the handle operation unit 45 of the walk-behind furrow-spanning cultivator 40 is protruded is rotated and lowered, the running wheels 12 are placed on the ground, and the worker M stands on the footstool 11 (FIG. 2(a)). The walk-behind furrow-spanning cultivator 40 straddles the furrow U with the front and rear legs on both the left and right sides, and travels through the furrow R between the two furrows U. At this time, the rear auxiliary wheels 41 arranged behind the rear legs on both the left and right sides also pass through the furrow R, and the riding auxiliary cart 10 connected to one of the rear auxiliary wheels 41 is pulled, and the running wheels 12 travel through the furrow R, moving the worker M standing on the top of the footstool 11 (FIG. 2(b)). This allows the worker M to operate the walk-behind furrow-spanning cultivator 40 simply by standing on the step stool 11 without having to walk along the furrows R, which not only helps reduce the amount of work required, but also enables the worker M to view his or her surroundings from a higher position than when walking, making it easier to check the work situation and the condition of the crops.

[0029] Even during work, when the ride-on auxiliary cart 10 is not being used or after work is completed, the ride-on auxiliary cart 10 can be rotated upward and stored. If the ride-on auxiliary cart 10 is lowered when not in use, the space it occupies will protrude rearward and become bulky, which may cause inconvenience when moving or storing the walk-behind furrow-straddling cultivator 40, or may be dangerous if the worker M trips over it. Therefore, by rotating the ride-on auxiliary cart 10 upward for storage, the protrusion can be suppressed and free space behind the walk-behind furrow-straddling cultivator 40 can be secured.

[0030] When storing the riding auxiliary cart 10, it is preferable to provide a biasing means 20 that assists the upward rotation of the riding auxiliary cart 10, as shown in Fig. 4. By providing the biasing means 20, the manual upward rotation of the riding auxiliary cart 10 by the worker M is assisted, which contributes to reducing the work effort during storage, and it becomes possible to maintain the state in which it is flipped up upward without rotating downward by itself from the stored state to the usage state. Incidentally, the specific structure of the biasing means 20 is not particularly limited, but for example, as shown in the figure, it is formed by a pivot connection stay 21, an attachment claw plate 22 for attaching to the pivot connection stay 21, and a stand spring 23 for keeping it raised while traveling, and is formed by a structure in which a locking mechanism operates to maintain the pivot connection stay 21 in an upwardly rotated state.

[0031] In addition, when storing the riding auxiliary cart 10, a mode in which a tethering means 30 is provided that can tether the riding auxiliary cart 10 in a state where it is rotated upward, as shown in Fig. 5, is also preferable. By providing the tethering means 30, it is possible to prevent the riding auxiliary cart 10 from rotating downward by itself from the stored state to the usage state, and to reliably maintain the stored state where it is rotated upward. The specific structure of the tethering means 30 is not particularly limited, but for example, as shown in the figure, a tethering hole 32 may be provided in the rear area of ​​the platform 11, and a tethering hook 31 may be provided at a predetermined location on the walk-behind furrow-spanning cultivator 40 corresponding to the tethering hole 32, and the tethering hook 31 may be hooked into the tethering hole 32 for tethering. The configuration of the anchoring means 30 is not limited to the anchoring hooks 31 and the anchoring holes 32, but may be achieved by other configuration means.

[0032] As described above, the ride-on auxiliary cart 10 and walk-behind furrow-spanning cultivation machine 40 of the present invention are self-propelled by being towed by the walk-behind furrow-spanning cultivation machine 40, allowing the worker M to freely and easily get on and off the ride-on auxiliary cart 10, and making it easy to move between rows during field work.In addition, since the line of sight is higher by the height of the cart, it is easy to check the work status using the walk-behind furrow-spanning cultivation machine 40 in front and the overall condition of the crop.Furthermore, since the ride-on auxiliary cart 10 is rotatably connected, the ride-on auxiliary cart 10 can be rotated upwards and easily stored when not in use, such as when turning to enter the next furrow U or when loading into a vehicle, and it is also possible to ensure free space behind the walk-behind furrow-spanning cultivation machine 40 by reducing protrusion. [Industrial Applicability]

[0033] The riding auxiliary cart according to the present invention can be naturally adopted not only for walk-behind furrow-spanning cultivators, but also for other agricultural machines such as walk-behind cultivators, and various other working machines in which the operator follows the machine by operating the handle while walking. Therefore, it is considered that the "riding auxiliary cart and the walk-behind furrow-spanning cultivator equipped with said riding auxiliary cart" according to the present invention has extremely high industrial applicability. [Explanation of symbols]

[0034] 10 Passenger cart 11. Springboard 12 Running wheel 13 Connecting rod 14 Axis 15 Connection means 16 Gripping part 20. Actuation means 21 Pivot connection stay 22 Mounting claw plate 23 Stand spring 30 Mooring means 31 Mooring hook 32 Mooring hole 40 Walk-behind furrow cultivator 41 Rear auxiliary wheel 42 Side frame 43 Footrest Step 44 Height adjustment lever rod 45 Handle operation section U ridge R ridge M worker

Claims

1. A riding auxiliary cart attached to a walking type furrow straddling management machine, A running wheel is disposed under a flat platform, and a connecting means is provided which extends forward from the platform and is rotatably connected to a rear position of one of the left and right rear auxiliary wheels of the walking-type furrow straddling cultivator, This riding auxiliary cart is characterized in that during field work, it is towed by the walking type furrow-spanning cultivator and self-propelled, and the user can get on and off it at will by operating the handlebars.

2. 2. The riding auxiliary cart according to claim 1, wherein a grip portion is provided at the rear of the footrest.

3. 3. The riding auxiliary cart according to claim 1, wherein the width of the step is narrower than the width of the furrows.

4. A walking type furrow straddling cultivator equipped with the riding auxiliary cart according to any one of claims 1 to 3, A walk-behind furrow-straddling cultivator characterized in that a connecting means for a riding auxiliary cart is rotatably connected to one of the left and right rear auxiliary wheels.

5. 5. The walk-behind furrow-straddling cultivator according to claim 4, further comprising a biasing means for assisting the upward rotation of the riding auxiliary cart.

6. 6. The walk-behind furrow-spanning cultivator according to claim 4 or claim 5, further comprising a tethering means capable of tethering the ride-on auxiliary cart in an upwardly rotated state.

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