JP7500122B1 - Fruit shelf device - Google Patents

Abstract

[Problem] To provide a fruit shelf device with a simple structure that can achieve high work efficiency. [Solution] A fruit shelf device comprising at least two support posts installed upright with a gap between them on an installation surface and a wire stretched between the support posts, the fruit shelf device supporting vines with the wire comprising a second support post joined to the support post so as to be expandable in the vertical direction, and a pantograph-structured stretching section connected between an intermediate fulcrum on the support post and a free fulcrum at the upper end of the second support post and stretching up and down, the stretching section comprising two lower arms that cross at the intermediate fulcrum and are supported rotatably, and that move up and down symmetrically, and two upper arms that cross at the free fulcrum and are supported rotatably, and that move up and down symmetrically, the upper arms and the lower arms are each rotatably connected to the second support post at a midpoint in the height direction, and the wire is stretched between the lower arms of different support posts. [Selected Figure] Figure 1

Description

Application of Article 30, paragraph 2 of the Patent Act (1) Publication on a website Publication on X from March 9, 2023 https://x. com/assyllis? s=11&t=-SCHfjp0J7EvXTSRgBwT_Q%3Ex. com/assyllis? s=11&t=-SCHfjp0J7EvXTSRgBwT_Q (2) Publication on a website Publication on YouTube from March 17, 2023 https://youtu. be/b9an_YPA_Z0 (3) Publication on a website Publication on YouTube from March 22, 2023 https://youtu. be/hLNN8QJn-Dk (4) Publication on website: From March 31, 2023, it has been published on YouTube https://youtu. be/kzp1tBffwtk (5) Publication on website: From March 31, 2023, it has been published on the company's official website http://www. yamanaka-u. co. jp (6) Publication on website: From April 7, 2023, it has been published on YouTube https://youtu. be/XZ5Jl3HNaPM (7) Publication on website: From May 1, 2023, it has been published on YouTube https://youtu. (8) Publication on the website: From May 20, 2023, it will be available on YouTube https://youtu.be/GYQBVi_Fd98 (9) Publication on the website: From July 27, 2023, it will be available on the online shop via photo posting https://assyllis.buyshop.jp/

(10) Publication on website Publication on Facebook from September 9, 2023 https://www.facebook.com/61550019573201/posts/pfbid0LYjqBFrKEDqH19whirBzRV7281n3WaSccAXvv6Rnm1TFRXBAbQu8bvR9gC6UPpwyl/?app=fbl%3E (11) Publication on website Publication on LinkedIn from September 11, 2023 https://www.linkedin. com/in/takashi-yamanaka (12) Publication on the website: From September 11, 2023, it will be published on Instagram https://instagram.com/assyllis_u?igshid=Y3N1eXRxdnhzeW5k (13) Publication on the website: From October 24, 2023, it will be published on YouTube https://youtu.be/Ppcxf2QtLMM (14) Publication through exhibition: Exhibited at the New Manufacturing and New Service Exhibition for Small and Medium Enterprises at Tokyo Big Sight from December 6 to 8, 2023

This disclosure relates to a fruit shelf device.

Fruit trellis devices are often used to cultivate vines such as grapes. Patent Document 1 describes a fruit trellis device that "includes multiple posts set upright on the ground at intervals in a straight line, with the bases of the branches supported at the middle of each post, and the ends of wire ropes attached to the tips of the branches. The wire rope is stretched freely through the tops of the posts, and multiple tension wires are stretched between each of the branches to form a trellis around which the vines can wrap."

Japanese Patent Application Laid-Open No. 5-153876

The fruit shelf device described in Patent Document 1 allows the angle of the branches to be freely adjusted using wire ropes, making it possible to change the angle of the shelf depending on the purpose and season.
However, structures using wire ropes tend to require a large number of parts and a large variety, such as a winch, drum (pulley), wire rope, and frame material. As a result, the cost is high, which prevents large-scale farms from introducing many of them. There are also issues with maintainability.
There were also issues with respect to robustness, such as deterioration of the wire rope, misalignment of the angle due to stretching, and damage to the fruit shelf device due to breakage.

The present disclosure solves one of the problems of the above-mentioned conventional technologies. One specific problem to be solved is to provide a fruit rack device that can achieve high work efficiency and has a simple structure.

One embodiment of the fruit shelf device disclosed herein is a fruit shelf device that includes at least two support posts that are installed upright with a gap between them on an installation surface, and a wire that is stretched between the support posts, and that supports vines with the wire. The fruit shelf device includes a second support post that is joined to the support posts so that it can expand and contract in the vertical direction, and a pantograph-structured stretching section that is connected between an intermediate fulcrum on the support post and a free fulcrum at the upper end of the second support post and that can expand and contract up and down. The stretching section includes two lower arms that cross at the intermediate fulcrum, are supported rotatably, and can rise and fall symmetrically, and two upper arms that cross at the free fulcrum, are supported rotatably, and can rise and fall symmetrically, and the upper arms and the lower arms are each rotatably connected at a midpoint in the height direction of the second support post, and the wire is stretched between the lower arms of different support posts.

The present disclosure solves one of the problems associated with the prior art. One specific effect is that a fruit shelf device that is capable of achieving high work efficiency and has a simple structure is provided.

FIG. 2 is a front view of the fruit shelf device of the first embodiment. FIG. 2 is a perspective view of the fruit shelf device according to the first embodiment. FIG. 2 is a right side view of the fruit shelf device of the first embodiment. 2 is an enlarged view of the fruit shelf device of the first embodiment along line AA'. FIG. FIG. 13 is an enlarged (perspective) view of a portion of the arch-shaped member that is fixed to the bar material. FIG. 2 is a perspective view of the fruit shelf device, showing a state in which a sheet is attached along an arch-shaped member. FIG. 4 is a right side view of the fruit rack device, showing the sheet attached along the arch-shaped member. FIG. FIG. 13 is a front view of the extension/contraction section, illustrating the state in which it is moved downward. FIG. 11 is a right side view of the fruit shelf device of the second embodiment. FIG. 11 is a right side view of the fruit shelf device of the third embodiment. FIG. 13 is an enlarged (perspective) view of another embodiment of a portion of an arch-shaped member fixed to a bar member; FIG. 13 is an enlarged (perspective) view of another embodiment of a portion of an arch-shaped member fixed to a bar member;

The first embodiment of the fruit shelf device disclosed herein is a fruit shelf device that includes at least two support posts that are installed upright with a gap between them on an installation surface, and a wire that is stretched between the support posts, and that supports vines with the wire. The fruit shelf device includes a second support post that is joined to the support posts so that it can expand and contract in the vertical direction, and a pantograph-structured expansion section that is connected between an intermediate support point on the support post and a free support point at the upper end of the second support post and expands and contracts up and down. The expansion section includes two lower arms that cross at the intermediate support point, are supported rotatably, and can rise and fall symmetrically, and two upper arms that cross at the free support point, are supported rotatably, and can rise and fall symmetrically, and the upper arms and the lower arms are each rotatably connected at a midpoint in the height direction of the second support post, and the wire is stretched between the lower arms of different support posts.

In the above-mentioned fruit shelf device, the shelf is formed by a wire stretched across the lower arm with a pantograph structure. Therefore, the angle of the lower arm, i.e., the angle of the shelf, can be easily changed by simply changing the height of the free fulcrum. Changing the height does not require special mechanisms or parts, for example, since it is only necessary to change the fixed position of the second support with respect to the support. As a result, the number and types of parts required (especially the types) are reduced. In addition, since the lower arm is supported by the upper arm and the support, it is more robust compared to being fixed by hanging from a wire rope.

In conventional fruit shelf devices, the shape and dimensions of the shelves would change depending on the person who assembled the device and the location where the device was installed, which meant that the (optimum) cultivation conditions would differ depending on the farmer or farm.
Different cultivation conditions require different tools and machines for cultivation. In other words, specifications that are compatible with various cultivation conditions are required, which increases the development costs of the equipment, resulting in high equipment prices.

The above-mentioned fruit trellis device has a simpler structure and can be used under uniform conditions at various farms when cultivating vines such as grapes. As a result, the above-mentioned fruit trellis device contributes to the standardization of cultivation conditions that previously varied from farm to farm. By simplifying and standardizing cultivation conditions, it is possible to reduce the development costs and specifications of the necessary equipment, making it possible to keep equipment prices low not only for this fruit trellis device (which is low-cost in itself) but also for related tools and machinery, etc.

The second embodiment of the fruit shelf device disclosed herein is a fruit shelf device in which the lower arms of the different supports of the first embodiment are arranged so as to be approximately parallel to each other.

In the above-mentioned fruit shelf device, a pair of lower arms on each of the two posts are arranged approximately parallel to each other between the two posts that are spaced apart. This makes it easy to maintain the tension of the wire that is stretched across the lower arms. As a result, the vines can be stably supported even if they are heavy (e.g., when they are bearing fruit).

The third embodiment of the fruit shelf device disclosed herein is a fruit shelf device in which the second embodiment is further equipped with a dolly, the platform of the dolly serves as the installation surface, and the vines are arranged on the installation surface between the two posts, making the fruit shelf device movable.

In the above-mentioned fruit shelf device, the supports and the like, including the vines, can be installed on a cart. Therefore, the fruit shelf device can be moved along with the vines. With this configuration, for example, while the fruit is usually grown outdoors, it can be temporarily evacuated indoors in the event of a typhoon or the like. Also, just before the fruit is harvested, it can be moved indoors (for example, in a greenhouse) for cultivation to prevent theft. In other words, it is possible to change the cultivation location as appropriate depending on the purpose, season, etc.

The fourth embodiment of the fruit shelf device disclosed herein is the fruit shelf device of the third embodiment, which further includes two bars that are respectively spanned between the lower arms provided on different supports or between the upper arms.

By bridging the rod between the lower or upper arms, the overall structure tends to be more robust.

The fifth embodiment of the fruit shelf device disclosed herein is a fruit shelf device according to the fourth embodiment, which includes at least two arch-shaped members that are bridged between the two rods and convex upward, and a sheet that is fixed to the arch-shaped members and stretched above the upper arm.

By stretching a sheet over the upper arm, it is possible to prevent rain from hitting the vines (stems and shoots) supported by the trellis (the suspended wires). This allows for higher quality fruit to be obtained.
The material of the arch-shaped member is not particularly limited, but resin is preferable because it can be deformed more flexibly.

The sixth embodiment of the fruit shelf device disclosed herein is a fruit shelf device in which the position of the intermediate support in the height direction of the support pole is changeable in the fifth embodiment.

By making it possible to change the position of the intermediate fulcrum in the height direction, it is possible to change only its height while maintaining the angle of the pantograph structure. Specifically, the position of the second support and the position of the intermediate fulcrum can be moved to the same extent in the same direction.
The angle of the pantograph structure is synonymous with the angle of the shelf. There is a demand for the shelf angle to be maintained at a certain angle during cultivation in order to adjust the amount of sunlight that the vines receive. On the other hand, there is a demand for the shelf height to be changed depending on the type of work, the height of the worker, etc. The above-mentioned fruit shelf device makes it possible to achieve both of these goals.

The seventh embodiment of the fruit shelf device disclosed herein is the fruit shelf device of the sixth embodiment, further comprising a second bar material that is spanned between the two posts.

By placing a rod between the two pillars, the overall structure tends to be more robust. In addition, even if the structure shakes when being moved on a cart, the distance between the pillars tends to be kept appropriate.

The eighth embodiment of the fruit shelf device disclosed herein is a fruit shelf device in which the support pillar, the second support pillar, the upper arm, and the lower arm are made of at least one type of metal plate selected from the group consisting of flat plate-shaped, L-shaped cross section, and U-shaped cross section.

The main components of the fruit shelf device are made of flat, L-shaped, or U-shaped metal plates. The L-shaped or U-shaped metal plates can be formed simply by bending flat metal plates. This configuration makes it easier to manufacture each component, and reduces overall costs. As a result, it is easier to introduce the device to large-scale farms. In addition, when disassembled, the components are made of the same type (plate-shaped materials), making them more compact and more efficient to transport.
The material of the metal plate is not particularly limited, but examples thereof include iron and aluminum. The thickness and length are not particularly limited, and may be appropriately adjusted depending on the purpose, the height of the worker, the size of the installation location, etc. In one embodiment, the thickness of the metal plate is preferably about 0.5 to 5 mm.

The fruit rack device of the present disclosure will be described in further detail below based on an embodiment.
The following description is based on a representative embodiment, and it goes without saying that modifications and substitutions to known configurations are possible as long as the same effects are achieved.
In this specification, a numerical range expressed using "to" means a range that includes the numerical values before and after "to" as the lower and upper limits.

The following embodiment is an example that embodies the technical idea, and does not specify the material, shape, structure, and arrangement of the components to the embodiment. The drawings are schematic. Therefore, the relationship and ratio between thickness and planar dimensions may differ from the actual ones, and the relationship and ratio of dimensions may differ between the drawings.

Figure 1 is a front view of the fruit shelf device of the first embodiment. Figure 2 is a perspective view of the fruit shelf device of the first embodiment. Figure 3 is a right side view of the fruit shelf device of the first embodiment, and Figure 4 is an enlarged view of line A-A'. In each figure, axes common to the respective figures are indicated in the margins, and the directions represented by each axis are defined. The following explanation will be based on the directions defined by these axes.

The fruit shelf device is mainly composed of two supports 10 that are installed upright with an arbitrary distance between them on the installation surface (ground G in this case). Six wires 1 are stretched between the two supports 10, which support a vine plant 200. The vine plant 200 has a trunk 206 that extends from a container 208, and further has new shoots 204 that branch out from the trunk 206. The new shoots 204 are supported by the wires 1. Before harvesting, fruits 202 hang downward from the new shoots 204.

The second support 12 is joined to the support 10 so that it can expand and contract vertically. The second support 12 can be screwed into holes 12A, 12B, and 12C provided at different positions in the height direction of the support 10. In other words, the height of the second support 12 can be changed by changing the positions of the holes 12A, 12B, and 12C used for the stator.

Two upper arms 14A, 14B and two lower arms 16A, 16B are joined to the support pillar 10 and the second support pillar 12 to form a pantograph structure. That is, an intermediate fulcrum 52 is provided at a midpoint in the height direction of the support pillar 10. At this intermediate fulcrum 52, the lower arms 16A, 16B cross and are supported rotatably. The height direction (up and down direction) position of the intermediate fulcrum 52 can be changed. The support pillar 10 has holes 10A, 10B, 10C at different positions in the height direction, and by pivotally supporting the lower arms 16A, 16B at any of these holes, this position can become the intermediate fulcrum 52.

On the other hand, a free fulcrum 50 is provided at the upper end of the second support 12. At the free fulcrum 50, the upper arms 14A, 14B cross and are supported rotatably. In this embodiment, the position of the free fulcrum 50 in the height direction of the second support 12 is fixed. However, holes may be provided at different positions in the height direction of the second support 12 to make the position of the free fulcrum 50 variable.

The upper arm 14A and the lower arm 16A are connected to be rotatable at a cross fulcrum 54. Meanwhile, the upper arm 14B and the lower arm 16B are connected to be rotatable at a cross fulcrum 56. With this configuration, a pantograph structure is realized in which the upper arms 14A, 14B and the lower arms 16A, 16B are raised and lowered symmetrically on the left and right sides while the free fulcrum 50 is moved in the vertical direction with the intermediate fulcrum 52 as a fixed fulcrum, forming a parallelogram.

This pantograph structure allows the angle of the lower arms 16A and 16B to be changed by moving the free fulcrum 50 downward. The fixing holes 12A, 12B, and 12C of the second support 12 can be selected so that the lower arms 16A and 16B are at a predetermined angle.

The lower arms 16A, 16B (and the upper arms 14A, 14B) are provided on each of the two supports 10. The lower arms 16A, 16B provided on each of the two supports are arranged so that they are parallel to each other. By arranging them in this way, the tension of the wire 1 is more easily maintained, and even heavy new shoots 204 can be supported more stably.

Lower arms 16A and 16B are provided with multiple holes 1A (three each in this embodiment) at mutually symmetrical positions. Wire 1 is hung between two supports 10 via these holes 1A to form a "shelf." In this specification, "shelf" refers to a structure for supporting vines 200. More specifically, it refers to a structure for entangling new shoots 204 of vines 200.

The support 10 is installed (standing) upright on the installation surface (ground G). The support 10 has legs 48, 49 at its lower end. The legs 48, 49 extend from the lower end of the support 10 in the left-right direction perpendicular to the lower end. The legs 48, 49 are combined to form a T-shape in a plan view, and the support 10 is placed at the intersection of the two legs 48, 49. Furthermore, diagonal reinforcements 40, 42, 44 extend from the legs 48, 49 toward the support 10 and are fixed to the support 10. The diagonal reinforcement 44 extending from the leg 49 is screwed directly to the support 10. Meanwhile, the diagonal reinforcements 40, 42 extending from both ends of the leg 48 are fixed to a receiving plate 46 screwed to the support 10. The support 10 configured in this manner can stand on its own.

The two support posts 10 are erected on the installation surface (ground G) and each of them is freestanding. The upper arms 14A, 14B of the two support posts 10 have bars 18A, 18B fixed to them, facing the upper arms 14A, 14B of the other support post 10. In other words, the bar 18B is stretched from one upper arm 14B (14A) to the other upper arm 14B (14A). The bars 18A, 18B act as so-called "beams," further improving the robustness of the frame structure of the fruit shelf device.

An arch-shaped member 20 is fixed to the two rods 18A and 18B, approximately perpendicular to each of them. The base of the arch-shaped member 20 is fixed to the rods 18A and 18B, respectively, and is made convex upward. The direction of the arch (convex upward) of the arch-shaped member 20 is adjusted so that it is located above the upper arms 14A and 14B.

Figure 5 is an enlarged view (perspective view) of the portion of the arch-shaped member 20 fixed to the bar 18B. The arch-shaped member 20 is fixed by a fixing band 60 wound around the bar 18B. The fixing band 60 is composed of a band body 60A, a pair of male and female clasps 60B provided at each end of the band body 60A, and a slit 60C provided at a midpoint in the length direction of the band body 60A. The band body 60A is fixed in a state where it is wound around the bar 18B by the clasps 60B at the ends. The arch-shaped member 20 is inserted into the slit 60C and fixed so as to pass through it. The method of fixing the arch-shaped member 20 to the bar 18A is the same as above.

12 and 13 are enlarged views (perspective views) of another embodiment of the portion of the arch-shaped member 20 fixed to the bar member 18B.
12, the arch-shaped member 20 is fixed by a fixing band 62 wound around a bar 18B, as in the above. The fixing band 62 is composed of a band body 62A, a pair of male and female clasps 62B provided at each end of the band body 62A, and a slit 62C provided midway along the length of the band body 62A. The band body 62A is fixed in a wound state around the bar 18B by the clasps 62B at the ends. The arch-shaped member 20 is inserted into the slit 62C and fixed so as to pass through it.
The main difference from the above (FIG. 5) is the position of the clasp 62B. In the above, the clasp 62B is disposed horizontally, whereas in FIG. 12 the clasp 62B is disposed downward. The material of the fixing band 62 is not particularly limited, but may be made of metal, for example.

In FIG. 13, the arch-shaped member 20 is fixed to the bar 18B by a fastener 63 made by bending a metal bar. The fastener 63 fixes the arch-shaped member 20 by bending it toward the bar 18B using its own elastic force. This allows the arch-shaped member 20 to be fixed with a simpler structure.

Figure 6 is a perspective view of the fruit shelf device 100, and Figure 7 is a perspective view of the fruit shelf device 100. Both views show a state in which a sheet 62 is attached along the arch-shaped members 20. The rectangular sheet 62 is attached by fixing both ends to the arch-shaped members 20 so as to cover the multiple arch-shaped members 20. The sheet 62 is made of transparent resin. The sheet 62 functions like a roof for the wire 1 (i.e., the shelf) that is stretched across the lower arms 16A and 16B. The sheet 62 protects the shelf from rain, resulting in higher quality fruit.

Next, the vertical movement of the expansion and contraction part of the pantograph structure will be described. Fig. 8 is a front view of the expansion and contraction part, and Fig. 9 is a front view showing a state in which it is moved downward.
As described above, the telescopic section includes the upper arms 14A, 14B, the lower arms 16A, 16B, the free fulcrum 50, the intermediate fulcrum 52, and the cross fulcrums 54, 56.

To explain again, first, the second support 12 is fixed to the support 10 so that it can expand and contract in the vertical direction. The second support 12 is fixed to one of holes 12A, 12B, and 12C formed in different positions in the height direction of the support 10. In FIG. 8, the second support 12 is fixed to hole 12A.

The lower arms 16A and 16B are fixed to the intermediate fulcrum 52 so as to be rotatable. The lower arms 16A and 16B intersect at the intermediate fulcrum 52. The intermediate fulcrum 52 is formed by using the hole 10A. The hole 10A penetrates the support 10 in the thickness direction from the front to the rear. The lower arm 16B is fixed to one side (the front side) of the hole 10A, and the lower arm 16A is fixed to the other side (the rear side) of the hole 10A. That is, the lower arms 16A and 16B are screwed to the hole 10A of the support 10 so as to be rotatable. The support 10 is formed with holes 10B and 10C of different heights, making the height of the intermediate fulcrum 52 adjustable.

A method for adjusting (changing) the height of the telescopic part without changing the angles of the upper arms 14A, 14B and the lower arms 16A, 16B is as shown in Figure 9. First, the fixing point of the second support 12 is moved from the hole 12A to the hole 12C. If this is done alone, the parallelogram of the pantograph structure will be distorted, and the upper arms 14A, 14B and the lower arms 16A, 16B will be changed.
The angle of the lower arms 16A and 16B means the angle (opening degree) of the shelf. Since the opening degree of the shelf affects the amount of sunlight to the shoots, it may be appropriately adjusted according to the variety of the vine plant 200, the season, etc.

When changing only the height of the telescopic part without changing the angle of the upper arms 14A, 14B and the lower arms 16A, 16B, change the position of the intermediate fulcrum 52 accordingly. That is, change it from hole 10A to hole 10C. If the spacing between holes 12A, 12B, 12C and holes 10A, 10B, 10C is made approximately the same, the above operation allows you to change only the height without changing the angle (of the parallelogram) of the telescopic part.

Next, another embodiment of the fruit shelf device will be described. FIG. 10 is a right side view of the fruit shelf device of the second embodiment. The basic configuration of the fruit shelf device 300 is the same as that of the fruit shelf device 100. One of the features of the fruit shelf device 300 is that it is equipped with a cart 302.

The cart 302 has a plate-shaped main body 306 and wheels 304A, 304B that are attached to the main body 306 and allow the main body 306 to move. In the fruit shelf device 300, the two supports 10 and the vine plant 200 (not shown), including the container 208, are installed on the main surface 308 of the main body 306 of the cart 302. In other words, the "installation surface" of the fruit shelf device 300 is the main surface 308.

The fruit shelf device 300 configured in this way is movable, including the vines 200. With this configuration, for example, while the fruit is usually grown outdoors, it can be temporarily evacuated indoors in the event of a typhoon or the like. Also, just before the fruit is harvested, it can be moved indoors (for example, in a greenhouse) for cultivation to prevent theft. In other words, it is possible to change the cultivation location as appropriate depending on the purpose, season, etc.

Next, another embodiment of the fruit shelf device will be described. FIG. 11 is a right side view of the fruit shelf device of the third embodiment. The fruit shelf device 400 has four posts 10 (and associated components). In other words, four sets 402, 404, 406, 408 including the posts 10 are arranged at predetermined intervals. By configuring in this way, the scale (length) of the fruit shelf device 400 can be changed as desired depending on the scale of the farm, etc.

1 Wire 10 Support 1A, 10A, 10B, 10C, 12A, 12B, 12C Hole 12 Second support 14A, 14B Upper arm 16A, 16B Lower arm 18A, 18B Bar 20 Arch-shaped member 40, 42, 44 Reinforcement 46 Plate 48, 49 Leg 50 Free fulcrum 52 Intermediate fulcrum 54, 56 Cross fulcrum 60, 62 Fixing band 60A, 62A Band body 60B, 62B Clasp 60C, 62C Slit 62 Sheet 63 Fastener 100, 300, 400 Fruit shelf device 200 Vine plant 202 Fruit 204 Shoot 206 Trunk 208 Container 302 Cart 304A Wheel 304B Wheel 306 Body 308 Main surface

Claims (8)

At least two supports installed upright and spaced apart on the installation surface;
A wire rod is stretched between the supports, and the wire rod supports a vine plant.
A second support joined to the support so as to be expandable and contractable in the vertical direction;
a telescopic section having a pantograph structure that is connected between an intermediate fulcrum provided on the support and a free fulcrum at the upper end of the second support and telescopically expands and contracts up and down;
The stretchable portion is
Two lower arms that cross at the intermediate fulcrum, are rotatably supported, and can be raised and lowered symmetrically on the left and right sides;
Two upper arms are intersecting at the free fulcrum, rotatably supported, and raised and lowered symmetrically on the left and right,
the upper arm and the lower arm are rotatably connected to each other at a midpoint in a height direction of the second support column,
A fruit rack device, wherein the wire is spanned between the lower arms of different supports. The fruit rack device according to claim 1, in which the lower arms of different supports are arranged so as to be approximately parallel to each other. It also has a trolley,
The platform of the dolly serves as the installation surface,
3. The fruit shelf device according to claim 2, wherein the vine is arranged on the installation surface between the two posts and is movable. The fruit rack device according to claim 3, further comprising two bars that are respectively bridged between the lower arms or the upper arms of different supports. The fruit rack device according to claim 4, comprising at least two arch-shaped members that are bridged between the two rods and convex upward, and a sheet that is fixed to the arch-shaped members and stretched above the upper arm. The fruit shelf device according to claim 5, which is configured so that the position of the intermediate support in the height direction of the support pole can be changed. The fruit rack device according to claim 6, further comprising a second bar material that is stretched between the two posts. The fruit shelf device according to claim 7, wherein the support pillar, the second support pillar, the upper arm, and the lower arm are made of at least one type of metal plate selected from the group consisting of flat plates, L-shaped cross sections, and U-shaped cross sections.

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