Chestnut harvesting vehicle

The chestnut harvesting vehicle addresses usability and efficiency issues by using a rotating cage-like member with elastic rods and a burr peeling section to separate chestnuts from burrs, enhancing usability and reliability.

JP7882243B2Active Publication Date: 2026-06-30ISEKI & CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
ISEKI & CO LTD
Filing Date
2023-12-19
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Conventional chestnut harvesting vehicles in orchards lack usability and efficiency in collecting chestnuts while minimizing damage and separation of burrs, leading to suboptimal operator burden and reliability.

Method used

A chestnut harvesting vehicle equipped with a rotating cage-like member with elastic rods and a plate member that collects chestnuts while rotating, featuring adjustable gaps and stopper members to separate chestnuts from burrs, followed by a burr peeling section using roller members with different speeds and a suction fan device to crush and discharge husks.

Benefits of technology

Improves usability, simplifies configuration, reduces operator burden, enhances reliability, and increases harvest efficiency by effectively collecting and separating chestnuts from burrs with minimal damage.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a collection work vehicle for chestnuts for solving problems for example, in prior collection machines for collecting and picking up chestnuts, chestnut harvesting work for detaching cases of the chestnuts and collecting chestnuts with sufficiently preferable working property, is not always achieved.SOLUTION: There is provided a collection work vehicle for chestnuts comprising: a chestnut storage part 100 for storing chestnuts picked up from the ground surface. The chestnut storage part 100 comprises: a rotation cage-shaped member 110 where multiple rod materials 111 having prescribed rod-material resilience are arranged in a cylindrical state at a prescribed rod-material interval; and a plate-member 120 where a plate top surface is curved along a shape of the rotation cage-shaped member 110, and is provided below the rotation cage-shaped member 110. The longitudinal direction of the rod materials 111 matches the rotation direction of the rotation cage-shaped member 110, and following rotation of the rotation cage-shaped member 110, chestnuts pushed into the cage of the rotation cage-shaped member 110 from the gap between the multiple rod materials 111, are stored into the cage.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a chestnut fruit harvesting vehicle used in chestnut orchards and the like.

Background Art

[0002] There is known a collecting machine for collecting chestnuts and the like, which includes a rotatable drum, a cover disposed at an interval from the drum so as to cover a part of the circumferential surface of the drum, forming a receiving portion for receiving the collected objects between the cover and the lower part of the drum, and forming a discharging portion for discharging the collected objects between the cover and the drum above the receiving portion, and a pushing member protruding around the drum for pushing up the collected objects received from the receiving portion along the inner circumference of the cover and discharging them from the discharging portion (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, the present inventor considers various needs of users and believes that the trend of continuously implementing convenient functions on work vehicles used in chestnut orchards and the like is accelerating more and more.

[0005] However, the present inventor noticed that the usability when using convenient functions for conventional work vehicles used in chestnut orchards and the like is not always good. <s>Four]]

[0006]

[0007] ​The present invention aims to provide a chestnut harvesting vehicle that can be used in a way that takes into account the conventional problems described above. [Means for solving the problem]

[0008] The first aspect of the present invention is a chestnut harvesting vehicle that collects chestnuts while in motion, It is equipped with a chestnut storage section for storing the chestnuts found on the ground surface, The chestnut nut storage section comprises a rotating cage-like member in which a plurality of rods having a predetermined rod elasticity are arranged in a cylindrical shape at predetermined intervals between the rods, and a plate member provided below the rotating cage-like member, the upper surface of which is curved to conform to the shape of the rotating cage-like member. The longitudinal direction of the plurality of rod members coincides with the direction of the rotation axis of the rotating cage-like member. This chestnut harvesting vehicle is characterized in that, as the rotating cage-like member rotates, the chestnuts that are pushed into the cage of the rotating cage-like member through the gaps between the plurality of rods are collected inside the cage.

[0009] The second aspect of the present invention is a chestnut retrieval vehicle according to the first aspect of the present invention, characterized in that the predetermined elasticity of the rods and the predetermined spacing between the rods are set such that the chestnuts are pushed into the basket through the gaps between the rods, but the chestnuts and the chestnut burrs covering the chestnuts are not pushed into the basket through the gaps between the rods.

[0010] The third aspect of the present invention is a chestnut harvesting vehicle according to the second aspect of the present invention, characterized in that the gap between the plurality of rods and the plate member narrows from the front of the vehicle body towards the rear of the vehicle body.

[0011] The fourth aspect of the present invention is that the chestnut nut storage section not only has the function of storing the chestnuts on the ground surface, but also has the function of picking up the chestnuts and chestnut burrs on the ground surface and sending them toward the rear. The third chestnut nut collection vehicle of the present invention is characterized in that, by the rotation of the rotating cage-like member, the chestnuts and chestnut burrs that have entered the space between the plurality of rods and the plate member are picked up and sent toward the rear.

[0012] The fifth aspect of the present invention is a chestnut harvesting vehicle according to the fourth aspect of the present invention, characterized in that a stopper member is attached near the rear surface of the rotating cage-like member to prevent the chestnuts and chestnut burrs from rotating together with the rotation of the rotating cage-like member, so that the chestnuts and chestnut burrs detach from the rotating cage-like member and are sent toward the rear.

[0013] A first invention related to the present invention further comprises a burr peeling section for peeling the burrs of the chestnuts that have been picked up by the chestnut nut storage section and sent toward the rear from the chestnuts, The aforementioned burr peeling section has two roller members, The rotation axes of the two roller members are parallel to each other. As the two roller members rotate at different peripheral speeds, the chestnut burr that is caught in the gap between the two roller members is peeled away from the chestnut. A fourth chestnut harvesting vehicle of the present invention is characterized in that the size of the gap between the two roller members is adjustable.

[0014] A second invention related to the present invention is an elevator section that lifts the chestnut burrs, which have been picked up by the chestnut nut storage section and sent toward the rear, from the chestnut nut storage section toward the burr peeling section, The aforementioned burr-peeling section blows away the peeled chestnut burrs from the chestnuts, The first invention related to the present invention is a chestnut harvesting vehicle, further comprising the above.

[0015] A third invention related to the present invention is that the air selection unit has a suction fan device, The fan blades of the aforementioned suction fan device are cutter blades. The ejected chestnut husks are crushed by the fan blades and discharged toward the rear side of the suction fan device, which is the chestnut fruit recovery work vehicle of the second invention related to the present invention.

Advantages of the Invention

[0016] According to the first aspect of the present invention, it is possible to improve usability.

[0017] According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, it is possible to simplify the configuration.

[0018] According to the third aspect of the present invention, in addition to the effects of the second aspect of the present invention, it is possible to reduce the burden on the operator.

[0019] According to the fourth aspect of the present invention, in addition to the effects of the third aspect of the present invention, it is possible to further improve usability.

[0020] According to the fifth aspect of the present invention, in addition to the effects of the fourth aspect of the present invention, it is possible to improve reliability.

Brief Description of the Drawings

[0021] [Figure 1] Perspective view (Part 1) of the chestnut fruit recovery work vehicle according to an embodiment of the present invention [Figure 2] Perspective view (Part 2) of the chestnut fruit recovery work vehicle according to an embodiment of the present invention [Figure 3] Left side view of the chestnut fruit recovery work vehicle according to an embodiment of the present invention [Figure 4] Schematic partial left side view of the chestnut fruit recovery work vehicle according to an embodiment of the present invention [Figure 5] Perspective view (Part 1) of the chestnut fruit recovery work vehicle according to another embodiment of the present invention [Figure 6] Perspective view (Part 2) of the chestnut fruit recovery work vehicle according to another embodiment of the present invention

Modes for Carrying Out the Invention

[0022] Embodiments of the present invention will be described in detail with reference to the drawings.

[0023] The same applies below, however, some components may not be shown in the drawings, or they may be shown in perspective or in an abbreviated form.

[0024] While describing the operation of the chestnut harvesting vehicle according to the embodiment of the present invention, a method for controlling the operation of the chestnut harvesting vehicle, which is implemented by a controller and the like, will also be described.

[0025] Such a chestnut harvesting vehicle is a vehicle that collects chestnuts while driving, and is a specific example of a chestnut harvesting vehicle according to the present invention.

[0026] (1) First, the configuration and operation of the chestnut harvesting vehicle according to the embodiment of the present invention will be described in detail, mainly with reference to Figure 1.

[0027] Here, Figure 1 is a perspective view (part 1) of a chestnut harvesting vehicle according to an embodiment of the present invention.

[0028] The chestnut storage section 100 is a unit for storing chestnuts found on the ground surface.

[0029] After the chestnut harvesting is complete, the collected chestnuts, which have been placed inside the baskets, can be easily removed by hand through a chestnut removal opening fitted with an openable / closable basket lid.

[0030] The chestnut storage section 100 includes a rotating cage-like member 110 in which a plurality of rods 111 having a predetermined rod elasticity are arranged in a cylindrical shape at predetermined intervals between rods, and a plate member 120 provided below the rotating cage-like member 110, the upper surface of which is curved to conform to the shape of the rotating cage-like member 110.

[0031] Chestnuts that are not covered by burrs are collected one after another in the chestnut collection section 100 without being crushed, and the burrs can be separated on the spot, thus improving work efficiency.

[0032] The longitudinal direction of the multiple rods 111 coincides with the direction of the rotation axis of the rotating cage-like member 110. As the rotating cage-like member 110 rotates, chestnuts that are pushed into the cage of the rotating cage-like member 110 through the gaps between the multiple rods 111 are contained inside the cage.

[0033] In this configuration, where the chestnuts are separated from the chestnut burrs and collected, the chestnuts are stored inside a rotating cage-like member 110, which is an assembly of long, slender rods 111 with high flexibility, similar to the whisking metal wires of a whisk.

[0034] The chestnuts are pushed into the basket through the gaps between the multiple rods 111, but the chestnuts and the chestnut burrs covering them are not pushed into the basket through the gaps between the multiple rods 111. A predetermined rod elasticity and predetermined rod spacing are set accordingly.

[0035] Most of the chestnuts that are not covered by the burrs do not pass through the burr-removing section 200, which is the so-called threshing mechanism, and are therefore collected with little to no damage.

[0036] The chestnut burrs separated from the chestnuts may be wrapped around the rod 111 using a sponge material or adhesive resin tape material.

[0037] The chestnuts may be sandwiched between the rods 111, such as the metal wires or metal plates mentioned above, and directly sent to a chestnut container 1001 for temporary storage of the chestnuts.

[0038] It is desirable that an auger mechanism for directly transporting chestnuts from the chestnut container 1001 to the truck be provided, for example, below the roller member 210.

[0039] The chestnut container 1001 is a box container, or a flexible container like a bag.

[0040] For example, a spare flexible container hook may be installed for hanging and storing unused flexible containers that do not contain chestnuts, serving as a spare empty container.

[0041] A used flexible container hook may be installed to securely suspend the used flexible container that holds the chestnuts.

[0042] The flexible container hook used after use may be the same hook as the flexible container hook used before use.

[0043] Furthermore, the gap between the multiple rod members 111 and the plate member 120 may narrow from the front of the vehicle body towards the rear of the vehicle body.

[0044] As the gap between the rod 111 of the rotating cage-like member 110 and the plate member 120, which is a large claw-like member, gradually narrows, it is expected that the chestnut burrs will be rubbed and peeled off.

[0045] (2) Next, the configuration and operation of the chestnut harvesting vehicle according to the embodiment of the present invention will be described in more detail, mainly with reference to Figures 2 to 4.

[0046] Here, Figure 2 is a perspective view (part two) of a chestnut nut collection vehicle according to an embodiment of the present invention, Figure 3 is a left side view of a chestnut nut collection vehicle according to an embodiment of the present invention, and Figure 4 is a schematic partial left side view of a chestnut nut collection vehicle according to an embodiment of the present invention.

[0047] The chestnut storage section 100 not only has the function of storing chestnuts from the ground, but also the function of picking up chestnuts and chestnut burrs from the ground and sending them toward the rear.

[0048] Before passing through the burr-peeling section 200, the chestnut burrs are also peeled in the gap between the rod 111 and the plate member 120, which not only improves work efficiency but also allows chestnuts not covered by burrs to pass through these gaps with little to no damage, thus improving the harvest rate.

[0049] As the rotating cage-like member 110 rotates, chestnuts and chestnut burrs that have entered the space between the multiple rod members 111 and the plate member 120 are picked up and sent out towards the rear.

[0050] Since the chestnut burrs are crushed and broken into small pieces in the gradually narrowing gap described above, subsequent processing of the chestnut burrs is easy, and airflow clogging is unlikely to occur in the roughly L-shaped airflow unit through which the chestnut burrs blown away by the air selection unit 400 pass.

[0051] Such air passage units, which serve as transport paths for transporting inferior chestnuts and chestnut burrs, may be equipped with a foreign object ejection lever mechanism or the like to clear air passage blockages.

[0052] A stopper member S is attached near the rear surface of the rotating cage-like member 110 to prevent the chestnuts and chestnut burrs from rotating together with the rotation of the rotating cage-like member 110, so that the chestnuts and chestnut burrs detach from the rotating cage-like member 110 and are sent out toward the rear.

[0053] The chestnuts and chestnut burrs are secured by a stopper member S having, for example, an I-shaped locking member, and are reliably fed out towards the rear, thereby improving work efficiency.

[0054] (3) Next, the configuration and operation of the chestnut harvesting vehicle according to the embodiment of the present invention will be described in more detail, mainly with reference to Figures 1 to 3, 5 and 6.

[0055] Herein, Figures 5 and 6 are perspective views (I and II) of a chestnut harvesting vehicle according to another embodiment of the present invention.

[0056] The burr peeling unit 200 is a unit that peels the burrs off chestnuts that have been picked up by the chestnut storage unit 100 and sent toward the rear. The burr peeling unit 200 has two roller members 210.

[0057] The roller component 210 is a roller similar to the threshing roller used in rice hulling machines.

[0058] The axes of rotation of the two roller members 210 are parallel to each other. As the two roller members 210 rotate at different peripheral speeds, the chestnut burrs that are caught in the gap between the two roller members 210 are removed from the chestnuts.

[0059] Of the two roller members 210, for example, the roller member 210 on the front side of the vehicle body has a relatively large roller diameter, and the roller member 210 on the rear side of the vehicle body has a relatively small roller diameter.

[0060] The size of the gap between the two roller members 210 is adjustable.

[0061] A pressure sensor or similar device that detects the roller pressure between the two roller members 210 is attached to the burr peeling section 200, and it is desirable that the roller pressure be automatically adjusted based on the detection result of the pressure sensor.

[0062] The elevator unit 300 is a unit that lifts the chestnut burrs, which have been picked up by the chestnut storage unit 100 and sent toward the rear, from the chestnut storage unit 100 toward the burr peeling unit 200. The wind separation unit 400 is a unit that blows away the chestnut burrs that have been peeled from the chestnuts by the burr peeling unit 200.

[0063] The air selection unit 400 has a suction fan device 410.

[0064] The air selection section 400 located in front of or behind the burr peeling section 200 generates intake or discharge air using a blower fan mechanism to suck in the peeled chestnut burrs below the burr peeling section 200.

[0065] The fan blades 411 of the suction fan device 410 are cutter blades.

[0066] The Fanblade 411 is a blade similar to a grass-cutting blade that can, for example, finely chop chestnut burrs.

[0067] The blown-away chestnut burrs are crushed by the fan blade 411 and discharged toward the rear of the suction fan device 410.

[0068] As shown in Figures 5 and 6, intake air from the intake slit window at the front of the vehicle body is drawn in by the air selection section 400 behind the burr peeling section 200, generating intake air that causes good chestnuts to fall, while chestnut burrs mixed with poor quality chestnuts are sucked into the suction fan device 410 and crushed by the fan blades 411, and the crushed chestnut burrs are collected in a space downstream.

[0069] Furthermore, the program of the invention related to the present invention is a program that causes a computer to execute all or part of the steps (or processes, operations, and actions, etc.) of the chestnut harvesting vehicle operation control method of the invention related to the present invention described above, and is a program that operates in cooperation with the computer.

[0070] Furthermore, the recording medium of the invention related to the present invention is a recording medium that records a program for causing a computer to execute all or part of the steps (or processes, operations, and actions, etc.) of the chestnut harvesting vehicle operation control method of the invention related to the present invention described above, and is a computer-readable recording medium in which the read program is used in cooperation with the computer.

[0071] Furthermore, the "some steps (or processes, actions, and functions, etc.)" mentioned above refers to one or more of those steps.

[0072] Furthermore, the "actions of the steps (or processes, movements, and actions, etc.)" mentioned above refer to all or part of the actions of the steps mentioned above.

[0073] Furthermore, one form of use of the program of the invention related to the present invention may be that it is transmitted through a transmission medium such as the internet, light, radio waves, or sound waves, read by a computer, and operates in cooperation with the computer.

[0074] Furthermore, recording media include ROM (Read Only Memory), among others.

[0075] Furthermore, a computer is not limited to pure hardware such as a CPU (Central Processing Unit), but may also include firmware, an OS (Operating System), and even peripheral devices.

[0076] As mentioned above, the configuration of the present invention may be implemented in software or in hardware. [Industrial applicability]

[0077] The chestnut harvesting vehicle of the present invention can be made easier to use and is useful for use in chestnut orchards and other locations where chestnut harvesting is performed. [Explanation of symbols]

[0078] 100 Chestnut Storage Section 110 Rotating cage-like member 111 Bar material 120 Plate Member 200 burr peeling section 210 Roller component 300 Elevator Section 400 Wind selection department 410 Suction fan device 411 Fanblade 1001 Chestnut Container S Stopper component

Claims

1. This is a chestnut harvesting vehicle that collects chestnuts while driving. It is equipped with a chestnut storage section for storing the chestnuts found on the ground surface, The chestnut nut storage section comprises a rotating cage-like member in which a plurality of rods having a predetermined rod elasticity are arranged in a cylindrical shape at predetermined intervals between the rods, and a plate member provided below the rotating cage-like member, the upper surface of which is curved to conform to the shape of the rotating cage-like member. The longitudinal direction of the plurality of rod members coincides with the direction of the rotation axis of the rotating cage-like member. A chestnut harvesting vehicle characterized in that, as the rotating cage-like member rotates, the chestnuts that are pushed into the cage of the rotating cage-like member through the gaps between the plurality of rods are collected inside the cage.

2. The chestnut nut collection vehicle according to claim 1, characterized in that the predetermined elasticity of the rods and the predetermined spacing between the rods are set so that the chestnuts are pushed into the basket through the gaps between the rods, but the chestnuts and the chestnut burrs covering the chestnuts are not pushed into the basket through the gaps between the rods.

3. The chestnut harvesting vehicle according to claim 2, characterized in that the gap between the plurality of rods and the plate member narrows from the front of the vehicle body to the rear of the vehicle body.

4. The chestnut nut storage section has not only the function of storing the chestnuts on the ground, but also the function of picking up the chestnuts and chestnut burrs from the ground and sending them toward the rear. The chestnut nut collection vehicle according to claim 3, characterized in that the rotation of the rotating cage-like member picks up the chestnuts and chestnut burrs that have entered the space between the plurality of rods and the plate member and sends them toward the rear.

5. The chestnut harvesting vehicle according to claim 4, characterized in that a stopper member is attached near the rear surface of the rotating cage-like member to prevent the chestnuts and chestnut burrs from rotating together with the rotation of the rotating cage-like member, so that the chestnuts and chestnut burrs detach from the rotating cage-like member and are sent toward the rear.