FI126208B - Herbivores and herbivores - Google Patents

Description

FIELD OF THE INVENTION Field of the Invention

BACKGROUND OF THE INVENTION The present invention relates to seedling grippers for treating seedlings, especially for rootstock trout.

Background of the Invention

Reforestation utilizes a variety of planting machines that plant trees in the ground. This is especially the case for spruce and pine seedlings with a root bundle.

For the purpose of planting, the soil can be modified in various ways, whereby, for example, spotting or reversing can be used to form a soil which is planted with rootstocks and which is optimal for growth. Typically, the tree seedling is placed by means of a planting machine in a cavity formed to rot. It is also an advantage that after planting, the ground around the tree seedling is compacted.

One planting machine is disclosed in FI-94477-B, which is a planting machine mounted on a work boom. One planting machine is also disclosed in FI-119315-B, which is a planting machine that can be attached to a boom of a work machine and which can be used to plant two tree stumps simultaneously.

The capacity of the above-mentioned planters is limited. In order to increase capacity, attempts have been made to increase the amount of seedlings stored by the planter, as disclosed, for example, in WO-96/04775. Em. The publication's planter system also utilizes a gripper that handles seedlings.

One known planter system that utilizes seedlings is provided at http://www.voutube.com/watch? V = vPOpQXABFLk. There are several seedlings in the system.

The herbivore must be robust in structure and reliable in varying conditions.

BRIEF SUMMARY OF THE INVENTION

The solution of the invention for seedling capture is set forth in claim 1. Other claims provide some more specific examples of the solution.

These are seedlings for treating tree seedlings. The seedling grippers comprise a frame structure, a first pair of elongated pins for engaging the seedling, which are substantially parallel, and a first mechanism by which both pins are connected to the frame structure. Said mechanism is adapted to guide both pins closer to each other for the purpose of gripping the plant and further away for the purpose of detaching from the seedling.

The pins have relative motion. This mechanism allows either one pair of pins to move, or both pins to move. Preferably, both pins of the pair move towards each other and at the same time towards the stem of the trout which is caught between the pins.

According to one example, the first mechanism comprises at least a first pair of swing arms pivotally coupled to the frame structure, each pin of the first pair of pins being secured to the rocker lever and rotating with the rocker lever, a guide frame structure . Each pin is provided with one of said guide slots, which is adapted to engage against the pin and via the pin to rotate the pin rocker lever and simultaneously control the passage of the pin along the guide slot. Both guide grooves are arranged to guide both pins in movement toward each other as the guide frame structure moves in the first direction and away from each other when the guide frame structure moves in the opposite, second direction.

The structure is simple and reliable. The travel of the pins and the distance between the pins of the pair of pins can be easily controlled by the frame structure and mechanism, or by the frame structure and the control frame structure included in the mechanism.

In one example, the guide frame structure is adapted to move transversely or substantially perpendicularly to both the first pivot defined by the pair of pins and to the axial lines with respect to which the first pivot of the pivot lever pivots.

For example, the pins extend through the guide frame structure, so that the guide frame structure is positioned between the trout to be processed and the frame structure. The structure is thin and compact

According to one embodiment, the seedling grippers further comprise another pair of elongated pins. The first and second pair of pins are adapted to operate substantially simultaneously when gripping the same seedling.

With four pins, the plant can be reliably grasped, and the force exerted by the grapple on the plant during application can be distributed more evenly and over a plurality of pins than, for example, two opposing pins or three pins.

According to one embodiment, the seedling gripper further comprises an additional elongated pin for engaging the seedling with one or more pair of pins. The additional pin is substantially parallel to the first pair of pins. The additional pin is adapted to operate substantially simultaneously with the first pair of pins when gripping the same seedling.

In this way, the three pins can also be used to reliably grasp the plant and the force exerted by the grapple during the planting can be distributed more evenly and over a plurality of pins than, for example, in the case of two opposing pins.

According to one embodiment, the seedling grippers further comprise at least a third pair of elongated pins for engaging the seedling and which are substantially parallel. The first pair of pins is disposed on the opposite side of the frame structure relative to the third pair of pins. The first pair of pins faces in the opposite direction with respect to the third pair of pins.

Opposite pairs of pins allow the seedlings on both sides of the seedling to be treated. Thus, it is not necessary to place devices that rotate the seedling in the seedling or seedling catching system and the equipment is simplified.

For example, the pins of the seedling catcher, which are intended to catch the same trout, are alternately located on opposite sides of the trout stem and spaced apart when looking at the longitudinal direction of the trout stem.

The pins are set in, for example, a zigzag shape, so they do not squeeze the seedling, but the trout stem smoothly bends between the pins. The seedlings are mainly controlled by frictional forces and the proportion of clamping forces can be limited. In this case, there are three or more pins, preferably four. Fewer damage to the seedlings occurs when not pressed between opposing pins.

For example, the seedling grippers further comprise an elongated stop bar formed in the guide frame structure and having a predetermined length for the purpose of limiting the mutual movement of the frame structure and the guide frame structure. The longitudinal direction of the limiter slot is parallel to the first and second directions of the guide frame structure. The seedling grippers comprise a guide pin which is secured to the frame structure and disposed within said stop member, with respect to which the guide pin can move back and forth as the frame structure and the guide frame structure move relative to one another.

For ease of configuration, and according to one example, each of the guide slots has a first end that is open and disposed at the edge of the guide frame structure, and a second end that is closed.

For example, the guide frame structure of the seedling gripper comprises a structure which is one-piece or multi-component and extends on opposite sides of the frame structure.

For example, the frame structure of a seedling grabber has first fastening means by means of which the frame structure can be fixed, either fixedly or movably, to a system utilizing that seedling grabber. The guide frame structure has other fastening means which allow the guide frame structure to be attached either fixedly or movably to the system in question.

For example, each pin of at least the first pair of studs of a seedling grab has a circular cross-section and is provided with a padding located around the stud.

The solution also relates to a seedling grab system comprising one or more seed grabs described in the examples above. The system comprises a first securing member to which the frame structure of one or more seedlings is attached, and a second securing member to which the mechanism of said seedlings is fixed and adapted to move relative to the first securing member.

Preferably, in the above system, the guide frame structure which is part of the mechanism of said seed gripper is attached to the second fastening part.

For example, a seedling grab system has a plurality of contiguous seedlings in a row for simultaneous processing of seedlings in a row. In the system, the first and second attachment members move relative to one another and control the seedling gripper mechanism. The system may include an actuator adapted to move the first and second fastening members relative to each other.

The seedling grab system can be used as a mobile device to grab and move seedlings, for example, out of the seedling box, into the seedling box, from one seedling box to another, or in general seedling transports when seedlings, seedlings and seedling transfer equipment need to be moved.

The seedling grab system can be connected, for example, to a planting machine or a transfer device that takes care of the seedling transfer.

The seedling clamps according to the solutions presented are particularly suitable for seedlings with a root bundle. This is especially the case for pine or spruce seedlings.

Description of the drawings

The illustrated solutions will now be described in more detail with reference to the accompanying drawings, in which: Figure 1 illustrates a portion of an embodiment of a seedling grab, Figure 2 illustrates an example of a seedling grab of the solution Fig. 4 is a front view of the seedling grab of Fig. 2 in the open position, Fig. 5 is a side view of the seedling grab of Fig. 2 in an open position, and Fig. 7 is a side view of the seedling grab of Fig. 2. a plurality of seedling grippers according to Figure 2, placed in a seedling gripping system.

Detailed Description of the Invention

In Figures 1 to 7, like, like, identical or functionally identical parts are designated by the same reference numeral.

Figures 1 and 2 show an embodiment of a seedling grab according to the solution. In Fig. 1, seedling grippers 30 are shown without the guide frame structure 40 shown in Figs. 2, 3 and 6, in order to provide better visibility of the parts attached to the frame structure 31.

The seedling gripper 30 has at least a pair of rocker arms 33, also called a first rocker arm 60.

For example, each rocker lever 33 comprises a first end and a second end. The first end is coupled to the frame structure 31 via a joint 34 such that the rocker lever 33 can pivot about an imaginary axis X through said joint 34.

The rotation of the rocker lever 33 is already limited or free, whereby the rocker lever rotates at full speed. The rocker lever can be, for example, straight, curved, multi-knee or angular.

The seedling gripper 30 has a pair of elongated pins 32, also called a first pair of pins 61, for engaging the seedling and which are substantially parallel.

For example, each pin 32 is secured to one end of the rocker lever 33 such that the pin is substantially parallel to the axis X of the rocker lever, the pin 32 being able to rotate with the rocker lever 33 about the axis X.

For example, the swinging levers 33 of the swinging copper pair are in different directions and set at a predetermined angle with respect to each other.

Each pin is, for example, circular in cross-section. According to one example, the pin is provided with a pad 35 which is positioned around the pin. The padding 35 is in contact with the trout to prevent damage to the trout. The pin is straight or knee-shaped, for example, so that it comprises a plurality of successive portions which are parallel. In each pair of pins, at least the portions of the pins that adhere to the seedling and between which the seedling settles are parallel.

For example, the outermost free end of pin 32 has a shape that guides the seedling to the side surface of pin 32, e.g. a conical shape. The pin is, for example, a rod, an arm, a stick, a finger or the like. Preferably, the seedling grippers 30 are approached by the movement of the seedling in a direction parallel to pin 32, e.g., in the direction of the axis X, and transverse to the stem of the seedling.

The seedling gripper 30 has a guide frame structure 40 adapted to move back and forth relative to the frame structure 31.

For example, the movement of the guide frame structure 40 is transverse to the axis X of both rocker arms 33 of the first pair of rocker arms 60.

The seedling gripper 30 has a pair of elongated guide grooves 38, also called the first pair of guide grooves 62.

For example, each guide slot 38 is formed in the guide frame structure 40 such that the longitudinal direction of the guide slot 38 is transverse to the axis X of the rocker levers. Preferably, each guide slot 38 is disposed in a predetermined angle relative to each other.

The aforementioned angle and the mutual placement of the guide slots 38 can influence how close the pins 32 of the pair of pins are to each other in different positions and how much the pins 32 move relative to the travel distance of the guide frame structure 40.

Each pin 32 is disposed in one of said guide grooves 38 which is adapted to abut against said pin 32. As the frame structure 31 and the guide frame structure 40 move relative to each other, the guide groove 38 pivots the rocker lever 33 through the pin 32 and simultaneously controls the passage of the pin 32 along said guide slot.

For example, pins 32 extend through the guide frame structure 40 so that the guide frame structure 40 is positioned between the trout to be processed and the frame structure 31.

The first guide rail pair 62 is adapted to guide both pins 32 of the first pair of pins 61 toward each other as the guide frame structure 40 moves in the first direction (relative to the frame structure 31) and is intended to grip the seedling.

The first pair of guide halos 62 are arranged to guide both pins 32 of the first pair of pins 61 away from one another as the guide body structure 40 moves in a second direction (relative to the body structure 31) opposite to the first direction and for detachment.

The seedling is caught between the pins 32 of the pair of pins and the pins 32 hold the seedling.

The herbicide pins 32 are transverse to the shaft of the trout to be treated. For example, when in use, the pins are horizontal when handling seedlings that are vertical. The seedlings to be treated may have a root bundle, as the pins will grip the trout stem, above the root bundle.

According to one example and in the operating position described above, the guide frame structure 40 moves vertically and the pins 32 move horizontally in an arcuate motion.

The foregoing guide frame structure, swing lever pair, and guide sleeve pair are one example of a mechanism that can be applied to move one or more pair of pins in the disclosed solution. By this mechanism, the pins of the pair of pins move relative to one another, i.e. closer to each other for the purpose of gripping the seedling, and farther apart for the purpose of detaching the seedling. Part of this mechanism can also be applied to move a single additional pin.

In one embodiment of the solution shown, also shown in Figure 1, there are two pairs of pins 61 and 67, both located on the same first side 42 of the frame structure 31, between the pins 32 of both pins 61, 67, so that at least four pins hold the seedling.

In the above operating position, the two pairs of pins 61, 67 are vertically overlapping so that they can both catch the same seedling.

The seedling gripper 30 also has a second pair of rocking levers 66 coupled to the frame structure 31 and having axes, a second pair of pins 67 and a second pair of guide slots 68 having the same definitions and features as described above when presenting the first rocking pair 60 , axis X, first pair of pins 61 and first pair of guide grooves 62.

For example, the movement of the guide frame structure 40 is further transverse to the axis X of both rocker arms 33 of the second pair of rocker arms 66.

The first and second pair of pins 61, 67 are adapted to operate substantially simultaneously with, or detach from, the same seedling.

In one embodiment of the embodiment shown, also shown in Figure 1, there are two pairs of pins located on opposite sides of the frame structure 31, i.e. a first pair of pins 61 on the first side 42 and a pair of pins 64 referred to herein as third pins 64. the pins 32 of the pair of pins 64 face in the opposite direction relative to the pins 32 of the first pair of pins 61.

The seedling gripper 30 then has a third pair of rocking levers coupled to the frame structure 31 having axes and a third pair of pins 64 and a third guide sleeve having the same definitions and features as described above when presenting the first rocking pair 60, the frame structure 31 , first pair of pins 61 and first pair of guide pins 62.

For example, the movement of the guide frame structure 40 is further transverse to the axis X of both rocker arms 33 of the third pair of rocking levers.

The first pair of studs 61 and the third pair of studs may be arranged to operate substantially simultaneously, even if only one of them is engulfing the seedling.

For example, the axis X of the first rocker pair 60 is aligned with the axis X of the third rocker pair.

In one embodiment of the solution shown, also shown in Figure 1, there are two pairs of pins, both located on the same, second side 42 of the frame structure 31, so that at least four pins hold the seedling in place.

In the above operating position, the aforementioned third pair of pins 64 and the pair of pins 70, referred to herein as the fourth pair of pins 70, are vertically superimposed so that they can both adhere to the same seedling.

The seedling gripper 30 then has a fourth pair of rocking levers coupled to the frame structure 31 having axes and a fourth pair of studs 70 and a fourth pair of guide vanes having the same definitions and features as described above when presenting the first rocker pair X, frame structure 31. , first pair of pins 61 and first pair of guide pins 62.

For example, the pins 32 of the fourth pair of pins 70 face in the opposite direction to the pins 32 of the first pair of pins 61, and in the same direction as the pins 32 of the third pair of pins 64.

For example, the movement of the guide frame structure 40 is further transverse to the axis X of both rocker arms 33 of the fourth rocker pair 70.

The third and fourth pair of pins 64, 70 are adapted to operate substantially simultaneously with, or detach from, the same seedling.

For example, the axial lines X of the fourth rocker pair are aligned with the axis X of the first rocker pair 60.

In an embodiment of the solution shown, e.g., an additional pin is disposed adjacent to the first pair of pins 61, which is also located on the first side 42 of the frame structure 31. The seedling is interposed between pins 32 of the first pair of pins 61. The herbivore may also have the second pair of studs 67, so at least five studs hold the sapling in their grip. The operation and construction of the aforementioned auxiliary pin corresponds, for example, to the operation and construction of one pin of the second pair of pins 66 of Figure 1.

When using the aforementioned additional pin, the seedling gripper 30 also has an auxiliary swing lever coupled to the frame structure 31 comprising an additional pivot and an axial straight, and an additional pin and auxiliary guide slot having the same definitions and features as described above when presenting the first rocking pair 60, a frame structure 31, a pivot 34, an axis X, a first pair of pins 61 and a first pair of guide grooves 62.

The additional guide slot is adapted to guide the additional pin in movement toward one pin 32 of the first pair of pins 61 as the guide frame structure 40 moves in a first direction (relative to the frame structure 31) and is intended to grip the plant. Further, the additional guide slot is adapted to guide the additional pin in movement away from said pin 32 when the guide frame structure 40 moves in the other direction (relative to the frame structure 31) and is intended to release from the seedling. The additional pin is adapted to operate substantially simultaneously with the first pair of pins 61 when gripping the same seedling.

In the above embodiments having three or more pins, preferably four, the pins intended to engage the same seedling are alternately disposed on opposite sides of the seedling stem. The pins are positioned, for example, in a zigzag shape. The pins are not exactly aligned on opposite sides of the trout stalk but are spaced apart when looking at the longitudinal direction of the trout stalk.

The guide frame structure 40 is coupled to the frame structure 30. Such engagement enables and preferably controls the mutual movement of the guide frame structure 40 and the frame structure 30.

In the above embodiments, the seedling grippers 30 may further comprise at least one elongated stop bar 39 as shown in Figure 2 formed in the guide frame structure 40. The stop bar 39 has a predetermined length by which the mutual movement of the frame structure 31 and the guide frame structure 40 can be limited.

For example, the longitudinal direction of the stop bar 39 is parallel to the first and second directions of movement of the guide frame structure 40.

For example, the seedling gripper has a guide pin 36 secured to the frame structure 31 and disposed within the stop frame 36. The guide pin 36 can move back and forth relative to the stop frame 39 and the stop frame 39 when the frame structure 31 and the guide frame structure 40 move relative to one another.

In the above embodiments, it may be that the guide slot 38 has a first end, open and disposed at the edge of the guide body structure 40, and a second end, closed and delimiting the movement of the guide pin 32, as shown in Figure 2.

In the above embodiments, it may be that the guide frame structure 40 comprises a one-piece structure or e.g. a multi-part structure extending on opposite sides 42 and 43 of the frame structure 31. In the multi-part structure, the parts of the guide frame structure 40 are interconnected, e.g. ranks. Alternatively, the components of the multi-component structure are separate and are adapted to move simultaneously, e.g. by means of a system to which the seedling grippers are attached.

In the foregoing embodiments, it may be that the frame structure 31 has first securing members 37 by means of which the frame structure 31 can be fixed or movable. The sapling gripper of Figure 1 has fastening means 37 for allowing the sapling gripper to slide horizontally. In addition, it may be that the guide frame structure 40 has second securing members 41, by means of which the guide frame structure 40 can be mounted either fixedly or movably, e.g. to the above-mentioned system.

By means of the fastening means 37 and 41, the seedling grippers 30 can be attached, e.g., to various frame structures having movable frame members, mechanisms or actuators controlling the mutual movement of the frame structure 31 and the guide frame structure 40. According to one example, an actuator, e.g. a cylinder, is coupled between the frame structure 31 and the guide frame structure 40 to effect said mutual movement.

According to one example, the seedling clamps 30 can be attached by means of fastening means 37 and 41, e.g. to various seedling clamping systems having one or more seedling clamps as described above.

For example, Fig. 4 illustrates a seedling clamp system 50 having a plurality of seedling clamps 30 as described above, e.g., Figures 1 and 2.

The seedling grab system 50 comprises a first securing member 51 to which the body structure 31 of each seedling grab 30 is secured, e.g. The seedling gripper system 50 further comprises a second securing member 52 to which the guide frame structure 40 of that seedling gripper is secured, e.g., by means of the securing members 41. The fastening members 51 and 52 are arranged to move relative to one another, whereby the frame structure 31 and the guide frame structure 40 also move relative to one another. . The fastening members 51 and 52 are, for example, straight beams.

For example, the seedling grab system 50 can be utilized as a movable device for grabbing and moving seedlings, for example, out of the seedling box, into the seedling box, between seedling boxes or more generally for seedling transfers when seedlings need to be moved from one plant to another.

For example, the seedling gripper system 50 comprises a plurality of contiguous seedling grippers 30 in a row for simultaneous processing of seedlings in the row.

Preferably, the sapling gripper system 50 is arranged such that the sapling gripper 30 approaches the sapling by a movement parallel to pin 32, e.g., in the direction of axis X, and transverse to the stem of the trout.

For example, the seedling gripper system 50 comprises an actuator 53 arranged to move the first and second attachment members 51 and 52 relative to one another.

According to one example, also shown in Fig. 7, a row of sapling grippers 30 can be spread so that the distances of the sapling grippers increase to a predetermined length, and retractable so that the distances of the sapling grippers return. The seedling grab system has one or more actuators 54 that move the grabs to shorten and extend the 30 rows. A mechanism 58 may be coupled to the seedling grippers 30 to ensure that the distances between the seedling grippers 30 remain the same during the above movements.

In the example above, the fastening members 37 slide along the fastening portion 51 and at the same time the fastening members 41 slide along the fastening portion 52.

A row of sapling grippers 30 may be movably coupled to the sapling gripper system 50. In the example of Figure 7, the actuator 55 moves the entire row back and forth relative to the sapling gripper system body 56 to which said fasteners and actuators are connected. The seedling grab system 50 may further comprise attachment means 57 through which the seed grab system may be coupled, e.g., to a planting machine or transfer device for moving the seedlings.

The various embodiments of the solution according to the invention are not limited solely to the examples set forth in the accompanying drawings, or which are specifically described in, or referenced to, the foregoing description.

The particular features of the solution described above can also be combined and implemented in various combinations which are not present in the above examples. These combinations are as claimed in the appended claims.

Claims (15)

1. Seedlings (30) for treating tree seedlings, the seedlings comprising: - a frame structure (31), - elongated pins (32, 61) of the first pair (61) for engaging the seedlings and substantially parallel, and - a first mechanism by which the two pins of the first pair of pins (61) being coupled to the frame structure (31), and said mechanism being further adapted to guide both pins closer to each other for the purpose of seizing the seedling, and further apart for the purpose of detaching the seedling; - at least one additional elongated pin (32) or at least a second pair (67) of elongated pins (32, 67) for engaging the plant, substantially parallel to the first pair of pins (61) and adapted to operate substantially simultaneously with the first pair of pins (61); the same plant, - an additional mechanism or a second mechanism by which both pins of the additional pin (32) or both pins of the second pin pair (67) are coupled to the frame structure (31), and - said additional mechanism being adapted to move the pin pin closer to one pin of the first pin pair (61), or said second mechanism being adapted to guide both pins closer to each other for the purpose of gripping the seedling and further apart for the purpose of detaching the seedling, and wherein the first pair of pins (61) together with an additional pin or second pair of pins (67) such that the pins are alternately disposed on opposite sides of the trout stalk and spaced apart when looking at the longitudinal direction of the trout stalk while the studs are also transverse to the handle of the trout to be treated. The seedling grippers according to claim 1, wherein the first mechanism comprises: at least a first pair (60) of rocking levers (33, 60) rotatably coupled to the frame structure (31), wherein each pin of the first pair of pins (32, 61) is secured to the rocking lever rotate with the rocker lever, - a guide frame structure (40) adapted to move back and forth relative to the frame structure (31), and - a first pair (62) of elongate guide slots (38, 62) formed in the guide frame structure (40); , 32) is provided with one of said guide grooves adapted to engage against the pin and via the pivot to rotate the pin rocker lever (33, 60) and simultaneously control the passage of the pin along the guide groove, and in addition - both guide grooves (38, 62) 61, 32) towards each other as the guide frame structure (40) moves in the first direction n, and away from one another as the guide frame structure (40) moves in the opposite, opposite direction. The seedling grippers according to claim 2, wherein the guide frame structure (40) is adapted to move transversely or substantially perpendicular to both the first defined pair of pins (32, 61) and the axial lines (X) with respect to which the first rocker arm (33, 60) rotates. The seedling pins according to claim 2 or 3, wherein the seedling pins further comprise: - a second pair (67) of elongated pins (32, 67) for engaging the seedling and substantially parallel, and - a second mechanism through which both pins (32, 67) is coupled to the frame structure (31) and said second mechanism is adapted to guide both pins (32, 67) closer to each other for the purpose of gripping the seedling and further apart for the purpose of detaching the seedling, and 61) and the second pair of pins (32, 67) is adapted to operate substantially simultaneously when gripping the same seedling. The seedling grippers of claim 4, wherein the second mechanism further comprises: - at least a second pair (66) of rocking levers (33, 66) rotatably coupled to the frame structure (31), wherein each pin of the second pair of pins (32, 67) is secured to the rocking lever; rotating with the rocker lever, and - elongate guide slots (38, 68) of the second pair (68) formed in the guide frame structure (40), and further - each pin of the second pair of pins (32, 67) being matched to the second pair of guide slots (38, 68) the guide slots adapted to be positioned against said pin and via the pivot to rotate the pin rocker lever (33, 66) and simultaneously control the passage of the pin along the guide slot (38, 68), and in addition, both guide slots of the second guide slot pair (38, 68) (32, 67) both pins moving towards each other as the guide frame structure (40) moves in the first direction, and p to the outside when the guide frame structure (40) moves in the other direction. The seedling pins according to any one of claims 1 to 5, wherein the seedling pins further comprise: - an additional elongated pin (32) for engaging the plant and substantially parallel to the first pair of pins (32, 61), and - an additional mechanism through which the additional pin (32). coupled to the frame structure (31), and said auxiliary mechanism further adapted to move the additional pin (32) closer to one pin of the first pair of pins (32, 61) and further away from said pin, and wherein the additional pin is adapted to operate substantially simultaneously ) when catching the same seedling. The seedling catchers according to any one of claims 2 to 5, wherein the seedling catchers further comprise: - an additional swinging lever (33) rotatably coupled to the frame structure (31), - an additional elongated pin (32) for engaging the seedling and substantially parallel to the first pair of pins; , 61) is engaged with the auxiliary rocker lever (33) and rotates with the auxiliary rocker lever (33), and - an additional elongated guide bar (38) formed in the guide frame structure (40), and - an additional pin (32) disposed in the auxiliary guide bar (38), adapted to position against the auxiliary pin and via the auxiliary pin to rotate the auxiliary pin auxiliary rocker lever (33) and simultaneously control the passage of the auxiliary pin along the auxiliary control pin (38); a pin when the guide frame structure (40) moves in the first direction, and away from said pin as the guide frame structure (40) moves in the other direction, and by means of the additional guide guide slot (38), the additional pin (32) is adapted to operate substantially simultaneously with the first pair of pins (32, 61). Seedling pegs according to any one of claims 1 to 5, wherein the seedling pegs further comprise: - elongate pins (32, 64) of the third pair (64) for engaging the seedling and substantially parallel, and - a third mechanism through which the third pair (64). ) both pins are connected to the frame structure (31), and - said third mechanism is adapted to direct both pins of the third pair (64) closer to each other for the purpose of engulfing the seedling and further apart for the purpose of detaching the seedling; , 61) is disposed on the opposite side of the frame structure (31) with respect to the third pair of pins (32, 64), and - the first pair of pins (32, 61) is directed in the opposite direction with respect to the third pair of pins (32, 64). The seedling grips according to claim 8, wherein the third mechanism further comprises: - at least a third pair of rocking levers pivotally coupled to the frame structure (31), wherein each pin of the third pair of pins (32, 64) is secured to the rocking lever; a pair of elongate guide slots formed in the guide frame structure (40), and in addition, each pin of the third pair of pins (32, 64) is adapted to one of said guide slots adapted to engage against the pin and through the pivot to rotate the pivot lever; and in addition - both guide slots of the third guide pair pair are adapted to guide both pins of the third pair of pins (32, 64) toward each other as the guide frame structure (40) moves in the first direction and away from each other when the guide frame structure (40) moves in the second direction; The third swing lever pair (32, 64) and the third guide sleeve pair are disposed on the opposite side of the frame structure (31) relative to the first mechanism. A seedling grabber as claimed in any one of claims 1 to 9, wherein the pins (32) for engaging the same seedling are alternately disposed on opposite sides of the seedling stem and spaced apart when looking at the longitudinal direction of the seedling stem. A seedling grab according to any one of claims 2 to 10, wherein the frame structure (31) has first fastening means (37) for attaching the frame structure either fixedly or movably to a system utilizing said seed grab, and wherein the guide frame structure (40) has second fastening means (41). , by means of which the control frame structure can be attached either permanently or movably to the system in question. Seedlings according to any one of claims 1 to 11, wherein each pin of at least the first pair of pins (32, 61) has a circular cross-section and is provided with a padding located around the pin. The seedling grippers according to claim 3, wherein each rocking lever of the first rocker lever pair (33, 60) comprises: - a first end coupled via a joint (34) to the frame structure (31) so that the rocker lever can pivot about an axis (X) passing through said joint. and, further, the rocking levers of the first pair of rocking levers (33, 60) disposed at a predetermined angle relative to each other, and - a second end engaging a pin of the first pair of pins (32, 61) substantially parallel to said axis (X). Seedling grippers according to claim 8 or 9, wherein the guide frame structure (40) extends on opposite sides (42, 43) of the frame structure (31) and comprises a one-piece structure or a multi-component structure interconnected. The seedling grippers according to any one of claims 1 to 14, wherein the seedling gripping further comprises: - a stop bar (39) formed in the guide frame structure (40) and having a predetermined length allowing limiting movement between the frame structure (31) and the guide frame structure (40); a guide pin (36) secured to the frame structure (31) and disposed on said stop frame (36) so that the guide pin (36) can move back and forth along the stop frame (39) as the frame structure (31) and the guide frame structure (40) move relative to one another.