KR102907674B1 - Harvesting and transporting apparatus for fruit - Google Patents

Abstract

The present invention relates to a fruit harvesting and transporting device that integrates a device for harvesting fruit from a high-altitude fruit tree and a device for transporting the harvested fruit to a storage location, thereby unifying the harvesting and transporting operations and reducing labor.
It is characterized by comprising: a driving section equipped with a track drive device; a boarding and harvesting section in which a worker who harvests fruits boards and performs harvesting work; and a lifting section connected to the front of the driving section and elevating the boarding and harvesting section so that the worker can harvest fruits from a tree located at a high place.

Description

Harvesting and Transporting Apparatus for Fruit

The present invention relates to a fruit harvesting and transporting device, and more particularly, to a fruit harvesting and transporting device that integrates a device for harvesting fruit from an orchard located at a high place and a device for transporting the harvested fruit to a storage location, thereby unifying the harvesting and transporting operations and reducing labor.

Traditionally, Korea's fruit cultivation methods for apples, pears, and other fruits have relied on large-tree, thin-cropped cultivation. However, starting in 1996, a "new north apple cultivation system," modeled after Italy's South Tyrol apple cultivation system, was developed, bringing about a new turning point for the Korean fruit industry.

In other words, with the M9 rootstock, which has a high dwarfism rate, as the standard, the spindle-shaped tree shape has been adopted as the basic tree shape, and dense planting is being actively encouraged with the planting density narrowed to 3.5 m x 1.5 m.

In addition, guidelines for orchard infrastructure, such as irrigation and drainage facilities and stake installation, were established, enabling standardization of orchards. This also created conditions for Korea to use aerial work vehicles for pruning, pruning, and harvesting.

Meanwhile, harvesting fruits like apples, unlike other tasks, requires countless climbs up and down ladders to pick the fruit and place it in baskets, making it a highly intensive task. In this regard, the introduction of aerial work platforms has significantly improved harvesting efficiency by enabling access to high elevations in the tree canopy and direct packing into boxes. This has the advantage of significantly reducing work time.

However, due to excessive organic fertilizer application, strong pruning for large fruit production, and the influence of high-temperature monsoon season, the tree vigor is strong and the tree height is higher than the interrow distance, so the fruiting area is too high, and even if an aerial work vehicle is used, the work efficiency is low, and the lighting at the bottom of the tree crown is poor, affecting the fruit set, and the problem of increased risk of work on slopes is emerging.

Moreover, with the recent rapid spread of two-axis tree forms, which establish two main stems on a single rootstock, or multi-axis tree forms, which establish more than two axes, the existing three-dimensional tree crown of the elongated spindle shape is evolving into a two-dimensional flat tree crown with a narrow width in the form of a so-called “fruit wall” that can achieve a high level of mechanization. The two-axis or multi-axis tree forms are tree forms that have even robotic harvesting in mind. Unlike the elongated spindle shape where too many apples are hidden by branches or leaves, the “fruit wall” tree form exposes all the fruit, making it expected to make automated harvesting easier.

Furthermore, two-axis or multi-axis tree types are reported to produce initial yields comparable to those of the conventional spindle-shaped tree type, and offer advantages in management, including pest control, harvesting, and pruning, making them highly competitive tree types. Furthermore, to secure the competitiveness of the fruit industry, mechanization is essential for all agricultural operations within orchards, from bud breakage and fruit breakage, pruning, pest control, fertilization, weeding and mowing, defoliation, harvesting, and transportation.

In this regard, if a harvesting and transporting device is developed, it is expected that the harvesting work will be significantly more efficient than now, and labor productivity will also increase significantly by harvesting fruits, placing them in container boxes, and transporting and storing them through an intelligent platform.

Meanwhile, Patent Publication No. 10-2004-0072307 proposes and discloses a fruit harvester comprising: a holding member that wraps a fruit that has grown on a tree branch; a cutting means that is installed on the holding member and cuts off the stem of the fruit; an elastic rod that is connected to support the holding member and that can be extended or folded in multiple stages; and a holding/cutting control means that is installed on the lower portion of the elastic rod and operates the holding member and the cutting means to wrap the fruit and cut off the stem, and has a multi-stage elastic structure and a cutting means to enable the harvesting of fruit that is located high up in a fruit tree quickly and conveniently, and also to prevent damage to the fruit so that the fruit can be harvested for commercial use.

Patent Publication No. 10-2010-0048537 discloses a vehicle in which an engine, a track, and a main body are mounted on a body frame, and a power transmission device is configured inside the main body to enable forward and backward movement, the vehicle comprising: a hydraulic pump driven by power from the engine; a lift support vertically connected to the rear of the main body; a lift rotatably connected to the upper end of the lift support; a work platform connected to the upper end of the lift, the work platform generating a key signal for operation by a worker riding on it, and having a box loading portion for loading a storage box at the rear; a first hydraulic cylinder, each end of which is connected between the lift support and the lift, generating hydraulic force to raise and lower the lift; a storage box lifting and lowering drive unit mounted on the front of the work platform, the storage box for harvested fruit being lowered to the ground, and driven to detach the storage box; The present invention proposes and discloses an agricultural boom-type aerial work vehicle, which is configured on the above work platform, and includes a control means for controlling the position of the lift and the wheel state of the vehicle, and for controlling the lifting and lowering drive unit of the storage box, and is simple to drive and operate, and is manufactured with low energy consumption as a compact vehicle exclusively for farming, and can remove only the storage box from the harvested fruit tree by lowering it from the work platform to the ground without the need for the lifting of the lift, thereby preventing unnecessary energy consumption and waste of time, and has outriggers provided at the front and rear to expand the lower support area of the vehicle in farmland with an uneven slope, and is equipped with a vertical transport function that checks the weight of the work platform and issues an alarm when the appropriate weight is exceeded so that the worker can easily recognize it.

Patent No. 10-1338925 discloses an electric mobile ladder truck for orchard work that is electrically moved and has its height adjusted according to the height of a fruit tree, comprising: a lower frame formed into a square shape by combining a plurality of pipes; a pair of first fixing members provided at the front of the lower frame, a pair of driving wheels driven by a motor installed at the bottom of the first fixing members, a battery unit that supplies power to the upper part of the lower frame by the motor, a pair of second fixing members provided at the rear of the lower frame, and a pair of casters installed at the bottom of the second fixing members so as to be capable of horizontal rotation; a diagonal frame formed to extend upwardly in an upwardly inclined direction from one side of the lower frame in the forward and rearward direction of movement, and formed to extend horizontally from an upper end formed to extend upwardly in an upwardly inclined direction, and formed to extend downwardly in a vertical direction from the other end formed to extend horizontally; A ladder section having a plurality of stepping stones formed in an upwardly stepped manner along a portion of a diagonal frame formed to be inclined upward from the upper end of one side of the lower frame; a plurality of guide members formed to extend vertically upward in a circular tube shape from the upper end of the other side of the lower frame; a movable ladder section having a plurality of movable members formed in a circular tube shape to be inserted into the inner diameter of the guide members and to move up and down, and a plurality of stepping stones formed to be stepped upward on the upper part of the movable members; a fixing means provided on each of the guide members and the movable members on both sides so that the movable ladder section is fixed as it moves; a handle section formed to extend vertically upward from the rear side of the lower frame and to have an upper part bent rearward in a “┌” shape so that a worker can control the direction of the movable means; The present invention proposes and discloses an electric mobile ladder cart for use in an orchard, comprising: a first control unit provided on the lower side of one side of the movable ladder unit and the upper side of the handle unit to control a motor and a battery unit; wherein the fixing means has a plurality of third penetration holes formed vertically in the movable unit so that the movable ladder unit is fixed as it moves; a fourth penetration hole is formed on the upper side of the guide member to correspond to the third penetration holes; and a second fixing pin is provided to be inserted into the inner diameters of the third penetration hole and the fourth penetration hole so that the third penetration hole and the fourth penetration hole are positioned facing each other and fixed, thereby allowing a worker to safely climb up to harvest fruit or perform pruning and correction work regardless of the height of the fruit tree, thereby providing convenience in the harvesting work of the worker and ensuring the safety of the work.

Patent Publication No. 10-2004-0072307 Patent Publication No. 10-2010-0048537 Patent Registration No. 10-1338925

Accordingly, the present invention has been devised in consideration of the above-described problems, and its purpose is to provide a fruit harvesting and transporting device that integrates a device for harvesting fruit from a high-altitude fruit tree and a device for transporting the harvested fruit to a storage location, thereby unifying the harvesting and transporting operations and reducing labor.

The fruit harvesting and transporting device of the present invention for achieving the above purpose may include: a driving unit equipped with a track driving device; a boarding and harvesting unit on which a worker who harvests fruit boards and performs harvesting work; and a lifting unit connected to the front of the driving unit and elevating the boarding and harvesting unit so that the worker can harvest fruit from a tree located at a high place.

Here, the lifting member may be configured to include a pair of posts vertically installed at both ends of a connecting frame connected to a driving member, a spacing member having both ends bent and connected to the posts respectively to maintain a spacing between the posts, an elevating cylinder installed on the connecting frame, a pair of elevating frames slidably connected to the posts, and a connecting member connecting the upper ends thereof and to which a rod of the elevating cylinder is connected, and an elevating member that is elevated by the elevating cylinder, and a support member that is connected to the lower part of the boarding and harvesting unit to support the boarding and harvesting unit and is elevated by being connected to the elevating member.

Here, the lifting member includes a limit member that stops the operation of the lifting cylinder so that the top-mounted member is fixed at a certain height when moving, and the limit member may include a limit switch installed at the top of one post and a limit dog installed at the bottom of the lifting member to operate the limit switch.

Here, the limit switch may be configured to include a switch body installed on a post and generating a signal to stop an elevator cylinder, and a rotating part having one end rotatably installed on the switch body and contacted by a limit dog, so that when the limit dog comes into contact with the rotating part as the elevator member rises, the switch body generates a signal to stop an elevator cylinder, but when the elevator member is raised further, the rotating part is rotated by the limit dog so as not to limit the rise of the elevator member.

Here, the track driving device may include a driving motor including a reducer, a driving frame on which the driving motor is mounted at the top and a plurality of lower guide rollers are rotatably installed at the bottom, a track that is rotated by the driving motor and moves back and forth while in close contact with the road surface, a driving gear unit that is vertically arranged on the driving frame to convert the power of the driving motor into rotational power of the track, a front guide roller and a rear guide roller that are respectively arranged at the front and rear of the driving frame to guide the movement of the track and at least one of which is elastically supported by a driving tensioner installed on the driving frame, and a track guide that is installed at an angle at the front upper side of the driving frame to guide the movement of the track.

Here, the drive gear unit may include a chain that generates driving force for the track while being rotated by the drive motor, a chain drive sprocket that is rotated by the drive motor and drives the chain, a chain driven sprocket that is integrally connected to the track drive gear that rotates the track and to which the chain is coupled, and a chain tensioner that applies tension to the chain using a chain tension sprocket coupled to the outer side of the chain.

According to another fruit harvesting and transporting device of the present invention, a boarding and harvesting unit can be raised and lowered through a lifting unit connected to a driving unit, so that fruits located high up in a fruit tree can be easily harvested, and the harvested fruits are transported to a storage location by the driving unit, thereby achieving the useful effect of reducing the cost of harvesting and transporting the fruits.

According to the present invention, since a limit member is provided in the lifting section, the useful effect of fixing the boarding and harvesting section at a specific position during movement so that the harvested fruit can be safely transported can be achieved.

According to the present invention, a rotary member is provided in the limit switch, so that the lifting member can be raised above the limit switch, thereby achieving the useful effect of being able to harvest fruits located at high places.

According to the present invention, the track can be rotated by the driving motor of the track driving device, thereby enabling independent operation of the track driving devices on both sides, and by changing the arrangement of the driving gear portion that transmits the power of the driving motor to the track, it is possible to achieve a useful effect of being able to transform into various structures.

According to the present invention, the driving tensioner installed in the driving frame elastically supports the front guide roller or the rear guide roller, thereby maintaining the tension of the track constant, and the track guide installed on the upper side of the driving frame prevents sagging of the track, thereby achieving the useful effect.

Figure 1 is a perspective view illustrating a fruit harvesting and transport device according to the present invention.
Figure 2 is an exploded perspective view illustrating a fruit harvesting and transport device according to the present invention.
Figure 3 is a side view of a fruit harvesting and transporting device according to the present invention.
Figure 4 is a side view showing the appearance of the boarding and harvesting section being moved in a fixed state in the fruit harvesting and transporting device according to the present invention.
FIG. 5 is a perspective view showing a driving track device in a fruit harvesting and transporting device according to the present invention.
FIG. 6a and FIG. 6b are perspective views illustrating the driving part of the driving track device in the fruit harvesting and transporting device according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

The terms used in the present invention are terms defined in consideration of their functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definitions of these terms should be interpreted as meanings and concepts that are consistent with the technical aspects of the present invention.

Figures 1 to 6 of the attached drawings are drawings illustrating a fruit harvesting and transport device according to the present invention.

A fruit harvesting and transporting device according to an embodiment of the present invention comprises a track driving device (10), a driving unit (20), a boarding and harvesting unit (40), and a lifting unit (30), as shown in FIGS. 1 to 4.

The driving unit (20) generates moving power through a pair of track driving devices (10), and is composed of a main body (21) in which a battery, etc. is installed, a footrest (22) provided at the rear of the main body (21) for a driver to board, and a control panel (25) for controlling the driving unit (10) and the lifting unit (30).

Accordingly, the driver who steps on the footboard (22) can control the driving unit (10) through the control panel (25) and also control the lifting unit (30) to raise and lower the boarding and harvesting unit (40).

At this time, it is preferable that the control panel (25) be configured to be controlled wirelessly so that the driver can control it while riding in the boarding and harvesting unit (40), and it is more preferable that it can be controlled through an app on a smartphone.

Therefore, it is possible to harvest and transport fruits alone.

The lifting unit (30) is connected to the front of the driving unit (20) and is configured to raise and lower the boarding and harvesting unit (40) so that workers can harvest fruits from trees located at high places, and is configured in a shape similar to a forklift.

Specifically, the lifting unit (30) comprises a pair of posts (32) vertically installed at both ends of a connecting frame (31) connected to a driving unit (20), a spacing member (34) having both ends bent and respectively connected to the posts (32) on both sides to maintain a spacing between the posts (32), an elevating cylinder (33) installed on the connecting frame (31), a pair of elevating frames (36a) slidably connected to the posts (32), and a connecting member (36b) connecting the upper ends thereof and to which the rod of the elevating cylinder (33) is connected, and comprises an elevating member (36) that is elevated by the elevating cylinder (33), and a support member (37) that is connected to the lower part of the boarding and harvesting unit (40) to support the boarding and harvesting unit (40) and is elevated by being connected to the elevating member (36).

Accordingly, by raising and lowering the lifting member (36) using the lifting cylinder (33), the boarding and harvesting unit (40) can be moved to a desired position.

In addition, it is preferable that the lifting part (30) include a limit member (35) that stops the operation of the lifting cylinder (33) so that the boarding and harvesting part (40) is fixed at a certain height when moving.

At this time, the limit member (35) is composed of a limit switch (35a) installed at the top of one side post (33) and a limit dog (35b) installed at the bottom of the lifting member (36) to operate the limit switch (35a).

Accordingly, when the lifting member (36) moves and the limit dog (35b) operates the limit switch (35a), the operation of the lifting cylinder (33) is stopped by the limit switch (35a), and the boarding and harvesting unit (40) is fixed at a set position, thereby safely protecting the passenger during movement and enabling the harvested fruit to be safely transported.

At this time, it is preferable that the limit switch (35a) be configured to include a switch body (35a1) that is installed on a post (32) and generates a signal to stop the lifting cylinder, and a rotating part (35a2) that is installed so that one end can rotate on the switch body (35a1) and that the limit dog (35b) comes into contact with.

Accordingly, when the limit dog (35b) comes into contact with the rotating part (35a2) as the lifting member (36) rises, the switch body (35a1) generates a signal to stop the lifting cylinder. However, when the lifting member (36) is raised further in this state, the rotating part (35a2) rotates due to the limit dog (35b), so that the lifting of the lifting member (36) is not restricted.

The boarding and harvesting section (40) is a place where a worker boards and performs harvesting work, and is configured to be raised and lowered by a lifting section (30). This boarding and harvesting section (40) may include a floor section (41) on which a worker can step and stand, a floor extension section (42'), a pair of side plates (42) that are rotatably connected in the up-and-down direction on both sides of the floor section (41), and a front safety belt (43) and a rear safety belt (44) that form an entrance/exit passage for the worker and connect the side plates (42) to each other to prevent the worker from falling.

This allows workers to harvest fruit while maintaining safety.

Meanwhile, the track driving device (10) provided in the driving section (20) is configured to move in the forward and backward directions by rotating the track (15) using the driving motor (11), as shown in FIG. 4, and includes a driving motor (11), a driving frame (12), a driving gear section (13), a lower guide roller (14), a track (15), a driving tensioner (16), a front guide roller (17), a rear guide roller (18), and a track guide (19).

The drive motor (11) generates driving force to rotate the track (15) and is formed as an integrated structure with a reducer.

And a harness connected to the battery frame (30) described later is provided to supply power from the battery (35).

In this way, as the drive motor (11) is mounted, the power transmission method required to drive the aircraft is simplified, and the structure can be configured in various ways through sub-unitization.

The drive frame (12) is the central part of the track drive device (10), and a drive motor (11) is installed at the top and a plurality of lower guide rollers (14) are installed at the bottom so as to be able to rotate.

The drive gear unit (13) is for converting the power of the drive motor (11) into the rotational power of the track (15), and is arranged vertically to the drive frame (12).

Specifically, the drive gear unit (13) is configured to include, as illustrated in FIG. 6, a chain (13b) that generates a driving force for a track (15) while being rotated by a drive motor (11), a chain drive sprocket (13a) that is rotated by the drive motor (11) to drive the chain (13b), a track drive gear (13d) that rotates the track (15), a chain driven sprocket (13c) that is integrally connected to the chain (13b) and to which the chain (13b) is coupled, and a chain tensioner (13f) that applies tension to the chain (13b) using a chain tension sprocket (13e) that is coupled to the outer side of the chain (13b).

The drive motor (11) and the chain drive sprocket (13a) are connected by an orthogonal transmission device such as a bevel gear, and the chain (13b) is arranged to circulate between the chain drive sprocket (13a) and the chain driven sprocket (13c).

However, since contraction and relaxation may occur in the chain (13b) depending on the rotation direction of the drive motor (11) when the chain drive sprocket (13a) rotates, a chain tensioner (13f) is used to keep the tension of the chain (13b) constant.

In order to maintain the tension of the chain (13b) constant, it is ideal to configure tension devices on both sides of the chain (13b), but chain tensioners (13f) that are opposite to each other can also be installed on both ends of the chain tension sprocket (13e).

This is to restrain excessive movement due to excessive tension and contraction on the chain (13b) side to which the chain tension sprocket (13e) is coupled.

In this way, by limiting the displacement of the chain tension sprocket (13e) and inducing tension action within a certain range, it is possible to suppress detachment and abnormal breakage of the chain (13b).

The lower guide roller (14) is installed rotatably at the bottom of the driving frame (12), and the number of installations varies depending on the length of the track, etc. For reference, in the embodiment, four lower guide rollers (14) are installed at the driving frame (12).

The track (15) is rotated by the drive motor (11) and is in close contact with the road surface to allow the aircraft to move back and forth.

Specifically, the track (15) has a gear portion formed along the inner central portion where the track drive gear (13d) engages, and at the same time, a portion where the lower guide roller (14), the front guide roller (17), and the rear guide roller (18) are coupled is also provided on the inner surface.

And the track (15) is arranged in a roughly triangular shape, with the front being arranged at a low incline angle and the rear being arranged at a high incline angle.

At this time, a track guide (19) may be provided to prevent track sagging at the front and to guide the movement of the track (15). It is preferable that the track guide (19) be installed at an angle on the front upper side of the driving frame (12).

And in order to keep the tension of the track (15) constant, it is preferable that at least one of the front guide roller (17) and the rear guide roller (18) be elastically supported by a driving tensioner (16) installed on the driving frame (12).

For reference, in the embodiment of the present invention, the front guide roller (17) is supported by the driving tensioner (16), and instead of the front guide roller (17), the rear guide roller (18) may be elastically supported by the driving tensioner (16), or both may be elastically supported by the driving tensioner (16).

This driving tensioner (16) maintains the tension of the track (15) by utilizing the principle of tension and contraction of the cylinder. It is preferable to connect the tension and contraction line of the cylinder to a relief valve and an accumulator, supply hydraulic oil in the tension direction of the cylinder, and install a check valve in the branch section to prevent malfunction due to reverse flow of hydraulic oil.

Accordingly, the following describes harvesting of fruits and transporting of the harvested fruits to a storage location using the fruit harvesting and transporting device according to the present invention having the above-described configuration.

The driver standing on the footboard (22) of the driving unit (20) moves to the working position by adjusting the track driving device (10) through the control panel (25).

Next, when a worker boards the boarding and harvesting unit (40), the hydraulic cylinder (33) is operated through the control panel (25) to raise the lifting member (36) to a height at which the fruit can be harvested, so that the worker boarding the boarding and harvesting unit (40) harvests the fruit and loads it into a container box of the boarding and harvesting unit (40).

And when moving to change the working location or store the harvested fruit, the height of the boarding and harvesting unit (40) is fixed through the limit member (35).

That is, by controlling the lifting cylinder (33) through the control panel (25) to lower the boarding and harvesting section (40), the limit dog (35b) operates the limit switch (35a).

When the limit switch (35a) detects the limit dog (35b) and stops the lifting cylinder (33), the boarding and harvesting unit (40) is fixed without being raised or lowered.

Accordingly, the passengers of the boarding and harvesting unit (40) and the harvested fruits can be safely protected regardless of the movement of the driving unit.

Meanwhile, in order to move the fruit harvesting and transportation device, the track drive device (10) of the driving unit (20) is operated.

When the drive motor (11) operates, power is transmitted to the drive gear unit (13), and the chain drive sprocket (13a) rotates.

Accordingly, the chain (13b) connected to the chain drive sprocket (13a) rotates to rotate the chain driven sprocket (13c), and the track drive gear (13d) integrally connected to the chain driven sprocket (13c) rotates.

At this time, the tension of the chain (13b) is strengthened by the chain tension sprocket (14e) and chain tensioner (14f) provided on the outside of the chain (13b), and the tension of the chain (13b) is maintained at a constant level.

When the track drive gear (13d) rotates, the track (15) engaged with it rotates along the track drive gear (13d), the front guide roller (17), and the rear guide roller (18).

At this time, since the rotation direction of the track (15) also changes according to the rotation direction of the driving motor (11), the track driving device (10) can be moved back and forth by adjusting the rotation direction of the driving motor (11). At this time, the driving tensioner (16) can provide tension to the track (15).

Therefore, the direction in which the track (15) of the track drive device (10) rotates can be adjusted to move the aircraft forward or backward.

And the aircraft can also be turned by slowing down or stopping one track drive device (10) or rotating it in the opposite direction to the other track drive device.

The embodiments described above merely describe preferred embodiments of the present invention and are not limited to these embodiments. Various modifications and variations can be made by those skilled in the art within the technical spirit and scope of the claims of the present invention, and this falls within the technical scope of the present invention.

10: Track drive device 11: Drive motor
12: Drive frame 13: Drive gear section
13a: Chain drive sprocket 13b: Drive chain
13c: Chain driven sprocket 13d: Track drive gear
13e: Chain tension sprocket 13f: Chain tensioner
14: Lower guide roller 15: Track
16: Driving tensioner 17: Front guide roller
18: Rear guide roller 19: Track guide
20: Driving part 21: Body
22: Footrest 25: Control panel
30: Lifting part 31: Connecting frame
32: Post 33: Lifting cylinder
34: Spacing member 35: Limit member
35a: Limit switch 35a1: Switch body
35a2: Rotation 35b: Limit dog
36: Elevating member 36a: Elevating frame
36b: Connecting member 40: Boarding and harvesting part
41: Bottom 42: Side plate
42': Floor extension 43: Front safety belt
44: Rear safety belt

Claims (6)

Driving unit equipped with track drive device;
A boarding and harvesting unit in which fruit harvesters board and perform harvesting work;
A fruit harvesting and transporting device including a lifting unit that is connected to the front of the driving unit and elevates the boarding and harvesting unit so that a worker can harvest fruits from a tree located at a high place.
The lifting unit comprises a pair of posts vertically installed at both ends of a connecting frame connected to a driving unit, a spacing member having both ends bent and connected to each of the posts to maintain a spacing between the posts, an elevating cylinder installed on the connecting frame, a pair of elevating frames slidably connected to the posts, and a connecting member connecting the upper ends thereof and to which the rod of the elevating cylinder is connected, and includes an elevating member that is elevated by the elevating cylinder, and a support member that is connected to the lower part of the boarding and harvesting unit to support the boarding and harvesting unit and is elevated by being connected to the elevating member.
The lifting part includes a limit member that stops the operation of the lifting cylinder so that the top part is fixed at a certain height when moving.
The limit member includes a limit switch installed at the top of one post and a limit dog installed at the bottom of the lifting member to operate the limit switch.
The limit switch includes a switch body that is installed on a post and generates a signal to stop the lifting cylinder, and a rotating part that is installed so that one end can rotate on the switch body and that the limit dog comes into contact with.
A fruit harvesting and transporting device characterized in that when the limit dog comes into contact with the rotating part as the lifting member rises, a signal to stop the lifting cylinder is generated from the switch body, but when the lifting member is raised further, the rotating part is rotated by the limit dog so as not to limit the rising of the lifting member.
delete delete delete In claim 1,
A fruit harvesting and transporting device characterized in that the track driving device includes a driving motor including a reducer, a driving frame on which the driving motor is mounted at the top and a plurality of lower guide rollers are rotatably installed at the bottom, a track that is rotated by the driving motor and moves back and forth while in close contact with the road surface, a driving gear unit vertically arranged on the driving frame to convert the power of the driving motor into rotational power of the track, a front guide roller and a rear guide roller respectively arranged at the front and rear of the driving frame to guide the movement of the track and at least one of which is elastically supported by a driving tensioner installed on the driving frame, and a track guide that is installed at an angle at the front upper side of the driving frame to guide the movement of the track.
In claim 5,
A fruit harvesting and transporting device characterized in that the drive gear section includes a chain that generates driving force for a track while being rotated by a drive motor, a chain drive sprocket that is rotated by the drive motor and drives the chain, a chain driven sprocket that is integrally connected to the track drive gear that rotates the track and to which the chain is coupled, and a chain tensioner that applies tension to the chain using a chain tension sprocket coupled to the outside of the chain.