JP5093483B2 - Pull-out mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weeding mechanism or the like capable of uprooting grasses growing from the ground, and having high operation efficiency while having a comparatively simple structure. <P>SOLUTION: The weeding mechanism 11 for uprooting the grasses growing on the ground is equipped with a mutually facing pair of belt conveyors 2F and 2B capable of uprooting the grasses growing on the ground by rolling the grass growing on the ground into the space between the pair of the belt conveyors 2F and 2b by circulating the pair of the belt conveyors 2F and 2B to the mutually opposite direction. The pair of the belt conveyors 2F and 2B has winding in-side pulleys 21F and 21B arranged at the vicinity of the ground, winding out-side pulleys 22F and 22B arranged at the positions farther from the ground than the winding in-side pulleys 21F and 21B, and endless belts 23F and 23B wound over the winding in-side pulleys 21F and 21B and the winding out-side pulleys 22F and 22B respectively. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a pulling mechanism for pulling out a plant rooted on a base and growing from a base surface. For example, the present invention relates to a weeding mechanism for pulling out grass growing from the ground and a tweezer mechanism for pulling out body hair growing from the skin.

  There are various ways to remove grass growing from the ground such as gardens and fields. For example, for a long time, it has been peeled off by hand, and a simple instrument such as a sickle has been used. However, this method is not only troublesome, but also painful for long hours of sitting and sitting.

  In order to solve this problem, for example, grass has been cut using a brush cutter. However, the grass near the crops is not only difficult to cut, but the grass roots remain in the ground. Here, using the “weeding machine” disclosed in Patent Document 1, it seems that it is possible to pull out the grass in the vicinity of the crops from the roots. However, if weeding a wide range, it takes time to work. there were. Moreover, although it seems that it is possible to extract grass from the roots using the “weeding machine” disclosed in Patent Document 2, this “weeding machine” is very large and necessary. It was something that digs up the ground.

  On the other hand, there are various methods for removing hair that grows on the skin. For example, traditionally, shaving with a razor or melting hair with a hair removal cream. However, the method of shaving with a razor was such that the hair root remained and the hair removal effect did not last long. In addition, the method using a hair removal cream has a long hair removal effect compared to the case of shaving with a razor, but cannot be used when the skin is sensitive to chemicals.

  In addition to the above, there has been a demand for devices for efficiently extracting plants such as flowers and small trees growing on the ground such as gardens and fields.

JP-A-6-189602 JP 2003-230305 A

  An object of the present invention is to provide a drawing mechanism having a relatively simple structure capable of efficiently pulling out a plant rooted on a base and growing from a base surface.

  In order to solve the above problems, a drawing mechanism for pulling out a plant rooted on a base and growing from a base surface, comprising a pair of belt conveyors facing each other, wherein the pair of belt conveyors circulate in opposite directions. By doing so, the vegetation growing from the base surface was drawn between a pair of belt conveyors to be pulled out.

This pulling mechanism is provided with a pair of belt conveyors facing each other, and the pair of belt conveyors circulate in opposite directions so that the plant growing from the base surface is drawn between the pair of belt conveyors. Therefore, it is easy to pull out the plant from the base surface. The plant is drawn between the belt conveyors and pulled out by friction with each belt in the pair of belt conveyors.
Moreover, the said extraction mechanism can extract many plant bodies in a short time, and is a thing with high working efficiency. Furthermore, it has a very simple configuration and can be manufactured at low cost.
Here, “plants rooted in the base and growing from the base surface” refers to “objects rooted in the basic material with a certain spread and growing from the surface”, for example, rooted in the ground It refers to grass, flowers and small trees that grow from the ground, and hair that grows from the skin, rooted in the human body.

  At this time, a pair of belt conveyors are arranged on the winding side pulley near the base surface, the winding side pulley arranged farther from the base surface than the winding side pulley, the winding side pulley and the winding side pulley. An endless belt wrapped around each of the belt conveyors, and the tensioned portion of the endless belt in the vicinity of the winding pulley of one belt conveyor is a winding pulley of the other belt conveyor. It can be set as the extraction mechanism which is pressed down from the surface and the tension part bites inward.

  In this drawing mechanism, the endless belt tension in the vicinity of the winding pulley of one belt conveyor is pressed from the surface of the endless belt by the winding pulley of the other belt conveyor, so the surfaces of the endless belts are strong. It adheres and this increases friction with the plant, making it easier to pull out the plant.

  In addition, a pair of belt conveyors includes a winding pulley disposed near the base surface, a winding pulley disposed farther from the base surface than the winding pulley, and a winding pulley and a winding pulley. Each of the endless belts may be a pulling mechanism that includes a plurality of thin belts arranged in the width direction.

  This pulling mechanism becomes even easier to pull out the plant by sandwiching the plant in the gap between the narrow belts adjacent in the width direction.

  Moreover, it can also be set as the extraction mechanism currently urged | biased with respect to the other party by connecting a support frame which supports a pair of belt conveyors by a drawing means.

  This pull-out mechanism is configured to make the pair of belt conveyors close to and away from each other in a state where the pair of belt conveyors are urged toward each other by connecting the support frames that support the pair of belt conveyors by a pulling means. It can be applied to plants of various shapes and thickness, and when a part of the base is attached to the root of the extracted plant (for example, soil or pebbles are attached to the root of the grass extracted from the ground) Even if it is attached), an excessive force is not applied and a stable operation can be achieved.

  Moreover, it can also be set as the extraction mechanism provided with the motive power device for making a pair of belt conveyors circulate. This pull-out mechanism can be said to be a power wrap-up type, and uses a power device to circulate a pair of belt conveyors, so that the working efficiency is very high.

  At this time, it is preferable to use an extraction mechanism in which only one of the pair of belt conveyors is connected to the power unit. When one belt conveyor connected to the power unit goes around, the other belt conveyor not connected to the power unit makes contact with the one conveyor that goes around and rotates in the opposite direction. Will do. As a result, a simpler pulling mechanism can be realized.

  Also, at this time, it is also preferable that the pair of belt conveyors are connected to the power unit, and the pulling mechanism is configured to rotate in the opposite direction at the same speed. This pulling mechanism increases the friction between the endless belt and the plant, making it easier to pull out the plant. A pair of belt conveyors may be connected by mechanically allocating the output of one power unit, or two power units may be provided, and a pair of belt conveyors may be connected corresponding to each power unit. .

  Further, at this time, it is also preferable to provide a pulling mechanism provided with a driven vehicle driven by an endless belt near the rear surface of the belt conveyor.

  This pull-out mechanism allows the driven vehicle to rotate by transmitting the output of the power unit to the driven vehicle via an endless belt, and can be driven on the base surface with a simple support of the operator. The mechanism can be realized. An example of a driven vehicle is a friction wheel that is in rolling contact with an endless belt.

  Further, the pulling mechanism does not include a power device for rotating the pair of belt conveyors, and only the belt conveyor on the traveling direction side of the pair of belt conveyors is in contact with the base surface on the base surface. , The belt conveyor on the traveling direction side circulates and the other belt conveyor that is in contact with the belt conveyor circulates, so that the plant growing on the base surface is wound between the pair of belt conveyors. It is also possible to adopt a pulling mechanism configured so as to be pulled out.

  This pulling-out mechanism can be said to be a hand-rolling type, and can pull out a plant growing on the base surface without providing a power device for rotating a pair of belt conveyors. The structure can be manufactured at low cost.

  Moreover, it can also be set as the extraction mechanism provided with the collection | recovery box for collect | recovering the extracted plant | plants in the back side of the belt conveyor.

  This pulling mechanism can efficiently recover a plant that has been drawn and pulled between a pair of belt conveyors.

  Further, the extraction mechanism may be a weeding mechanism for extracting grass growing from the ground.

  This pulling mechanism is capable of pulling out the grass that is rooted in the ground and grows from the ground, and has a relatively simple configuration and high working efficiency.

  Further, the pulling mechanism can be a hair pulling mechanism for pulling out body hair growing from the skin.

  This pulling mechanism is capable of pulling out hair from the skin rooted on the human body and growing from the hair root, and has a relatively simple configuration and high work efficiency.

  Further, the extraction mechanism can be a collection mechanism for extracting seaweed and kelp growing from the bottom of the sea.

  This pulling mechanism can pull out seaweed and kelp growing from the bottom of the sea, and has a relatively simple configuration and high working efficiency.

  Moreover, it can also be set as the extraction mechanism used as an end effector.

  This pull-out mechanism is used as an end effect of a magic hand or a robot arm, and thereby, a plant growing out of reach of the ceiling or the like can be pulled out.

  According to the present invention, it is possible to provide a drawing mechanism having a relatively simple configuration that can efficiently pull out a plant rooted on a base and growing from a base surface.

  Hereinafter, the drawing mechanism of the present invention will be described with reference to a weeding mechanism and a tweezer mechanism which are representative examples. 1 to 16 relate to a weeding mechanism, and FIGS. 17 to 22 relate to a tweezer mechanism. First, the weeding mechanism will be described with reference to FIGS.

1 to 16 showing the weeding mechanism, FIGS. 1 to 12 relate to a so-called power winding type weeding mechanism equipped with a power device, while FIGS. 13 to 16 show the power device. The present invention relates to a so-called hand-rolling type weeding mechanism that is not provided.
Furthermore, among FIGS. 1-12 regarding a power winding type weeding mechanism, FIGS. 1-8 is a figure for demonstrating the weeding mechanism of 1st embodiment, FIG. 9 is 2nd embodiment, FIG. FIG. 11 and FIG. 12 are diagrams for explaining the weeding mechanism of the fourth embodiment.
Moreover, among FIGS. 13-16 regarding the hand-rolling type weeding mechanism, FIGS. 13-15 is a figure for demonstrating the weeding mechanism of 5th embodiment, FIG. 16 is the weeding of 6th embodiment. It is a figure for demonstrating a mechanism.
First, the weeding mechanism (power winding type) of the first embodiment will be described by way of example with reference to FIGS.

[Weeding mechanism of the first embodiment]
As shown in FIGS. 1 to 8, the weeding mechanism 11 according to the first embodiment includes a pair of belt conveyors 2F and 2B and an engine 41 (see FIG. 5) as a power unit, and a tension spring 33 as a pulling means. It has. In addition, in FIGS. 1-3 and FIGS. 6-8, the engine as a power plant is not displayed.

[belt conveyor]
A pair of front and rear belt conveyors 2F and 2B are respectively endless belts 23F comprising winding pulleys 21F and 21B, unwinding pulleys 22F and 22B, and seven thin belts 231F and 231B wound around these pulleys. , 23B. The four pulleys 21F, 21B, 22F, and 22B all have the same diameter and length. The winding pulleys 21F and 21B are arranged near the ground 91 (see FIG. 5), the winding pulleys 22F and 22B are arranged farther from the ground 91 than the winding pulley, and the pair of front and rear belt conveyors 2F and 2B are Each is a slanted vertical type.

  The pair of front and rear belt conveyors 2F and 2B face each other. That is, the rotation axes of the winding pulleys 21F and 21B in each of the pair of belt conveyors 2F and 2B are parallel to each other, and the winding pulley (21F) and the winding pulley (one of the belt conveyors (2F)) ( The plane including both rotation axes of 22F) and the plane including both rotation axes of the winding pulley (21B) and the unwinding pulley (22B) in the other belt conveyor (2B) are parallel to each other. The pair of front and rear belt conveyors 2F and 2B are in contact with each other on the sides facing each other. That is, the endless belts 23F and 23B are in surface contact with each other on the sides facing each other.

  The seven thin belts 231F and 231B are each made of rubber, and are wound around the winding pulleys 21F and 21B and the winding pulleys 22F and 22B in a state of being arranged in the width direction.

  The pair of front and rear belt conveyors 2F and 2B is located at a position where one (2F) is displaced along the belt conveyor transfer direction with respect to the other (2B). That is, a plane including the rotation shafts of the respective winding pulleys 21F and 21B in the pair of front and rear belt conveyors 2F and 2B, and a winding pulley (21F) and a winding pulley (one of the belt conveyors (2F)). The pair of front and rear belt conveyors 2F and 2B are arranged so as to be shifted in the transport direction so that the plane including the rotation axis 22F) is not perpendicular to the plane. In the present embodiment, the front belt conveyor 2F is shifted from the rear belt conveyor 2B obliquely downward (on the ground 91 side) along the belt conveyor transfer direction.

  The pair of front and rear belt conveyors 2F and 2B are supported by front and rear support frames 24F and 24B that support the rotation shafts of both the winding pulleys 21F and 21B and the unwinding pulleys 22F and 22B, respectively. The front and rear support frames 24F and 24B are connected to each other by upper and lower connecting bars 31 and 32 so as to be able to approach and separate from each other.

[Drawing means]
Further, the front and rear support frames 24F and 24B are connected to each other by a tension spring 33 as a pulling means, whereby the pair of belt conveyors 2F and 2B are urged toward each other.
Then, as shown in FIG. 4, the tensioned portion 23T of the endless belt 23F in the vicinity of the winding pulley 21F of the front belt conveyor 2F is connected to the endless belt 23B by the winding pulley 21B of the rear belt conveyor 2B. Thus, the tensioned portion 23T of the endless belt 23F is cut into the inner side of the belt conveyor 2F on the front side, being pressed from the surface of the endless belt 23F.

  In addition, the tension part 23T of the endless belt 23F is pressed from the surface of the endless belt 23F by the winding side pulley 21B without the drawing means, and the tension part 23T bites into the inner side of the belt conveyor 2F on the front side. The relative positions of the pair of belt conveyors may be fixed by the upper and lower connecting bars 31 and 32 as they are. However, it is preferable to provide a drawing means for stable operation.

[Power equipment]
An engine 41 (see FIG. 5) as a power unit is for supplying the circulatory power to the pair of belt conveyors 2F and 2B. In the present embodiment, the engine 41 is attached to the upper end of the operation handle 51 for the operator to operate the weeding mechanism 11. The output shaft of the engine 41 is connected to a transmission shaft 52 that is inserted into the hollow internal space of the operation handle 51, and the rotational output is transmitted to the unwinding pulley 22B via this transmission shaft 52, so that the rear side The belt conveyor 2B is configured to go around. As will be described later, the front belt conveyor 2 </ b> F contacts and follows the circulating belt conveyor 2 </ b> B.
Since the engine 41 is attached to the upper end of the operation handle 51, the peripheral portion of the pair of belt conveyors 2F and 2B for entraining grass and the like can be configured in a compact manner, and weeds grown between crops that are not to be weeded are extracted. Even in such cases, the weeding mechanism is easy to use.
Various known means can be used to transmit the rotational output from the transmission shaft 52 to the rotation shaft of the unwinding pulley 22B. For example, a bevel gear mechanism or a universal joint may be used. In the present embodiment, a bevel gear mechanism is provided inside the connection unit 53 to which the operation handle 51 is connected, and the rotation output is transmitted from the transmission shaft 52 to the rotation shaft of the unwinding pulley 22B. .
Further, in FIG. 1 and the like, the unwinding pulley 22B connected to the engine 41 is displayed with cross-hatching almost entirely.

[Training wheels]
Moreover, in this embodiment, the auxiliary wheel 61 as a moving means is attached to the left and right two places on the back side of the rear belt conveyor 2B (the side opposite to the side facing the front belt conveyor 2F). The auxiliary wheel 61 is attached such that the lower end of the front belt conveyor 2F, the lower end of the rear belt conveyor 2B, and the lower end of the auxiliary wheel 61 are all aligned in a straight line in a side view.
By attaching the auxiliary wheel 61, it becomes easy to move on the ground 91, and the weeding mechanism 11 is easy to work.

[Weeding method]
Next, a procedure for pulling out the grass 911 growing on the ground 91 using the weeding mechanism 11 will be described. First, when an unillustrated switch of the engine 41 (see FIG. 5) is turned on, the output shaft rotates, and this rotational output is transferred to the unwinding pulley 22B via the transmission shaft 52 inserted into the hollow inner space of the operation handle 51. When transmitted, this pulley rotates. Then, the rear belt conveyor 2B starts to circulate in the direction in which the endless belt 23B facing the front belt conveyor 2F moves from the winding pulley 21B toward the winding pulley 22B. The endless belt 23F of the front belt conveyor 2F is in surface contact with the endless belt 23B of the rear belt conveyor 2B, and the front belt conveyor 2F also circulates in contact with the rear belt conveyor 2B. At this time, the pair of front and rear belt conveyors 2F and 2B circulate in opposite directions.
For example, as shown in FIG. 5, the operator holds the handle 511 with the operation handle 51 on the shoulder, and advances the weeding mechanism 11 to the weeding position while supporting the whole with the auxiliary wheel 61. When reaching the weeding position, for example, the winding pulleys 21F and 21B are brought close to the ground 91 with the auxiliary wheel 61 as a fulcrum, and the ground 91 is moved forward or backward in this state. Then, the grass 911 growing on the ground 91 is drawn between the pair of belt conveyors 2F and 2B that circulate in opposite directions. The extracted grass 911 is sandwiched between the endless belts 23F and 23B of the pair of front and rear belt conveyors 2F and 2B, transferred to the unwinding pulleys 22F and 22B, and discharged therefrom.

It is also possible to make the weeding mechanism 11 self-propelled by using the belt conveyors 2F and 2B that circulate. Specifically, as shown in FIG. 6, propulsion to advance forward by bringing the end of the belt conveyor 2F on the front side, which is the traveling direction side, out of the pair of belt conveyors 2F and 2B into contact with the ground 91. You can gain power.
For example, if the weeding mechanism 11 ′ does not have an auxiliary wheel (61) as shown in the modification of FIG. 7, the rear belt conveyor 2B, which is the traveling direction side of the pair of belt conveyors 2F and 2B, By bringing the end portion into contact with the ground 91, a propulsive force for moving backward can be obtained.

In this embodiment, the auxiliary wheel 61 is attached to the back side of the belt conveyor 2B on the rear side. However, instead of the auxiliary wheel 61, a plate-like warp 62 as shown in FIG.
Moreover, you may attach the auxiliary wheel 61 or the plate-shaped sled 62 to both the back side of the back belt conveyor 2B, and the back side of the front belt conveyor 2F.
Furthermore, in the present embodiment, the four pulleys 21F, 21B, 22F, 22B all have the same diameter and length, but each may have a different diameter or a different length. .

[Weeding mechanism of the second embodiment]
Next, the weeding mechanism 12 (power winding type) of the second embodiment will be described with reference to FIG. FIG. 9 is a right side view showing a state in which the weeding mechanism is self-propelled forward. This weeding mechanism is different from the weeding mechanism of the first embodiment shown in FIG. 1 and the like in that it includes a friction wheel 7 as a driven vehicle instead of having an auxiliary wheel (61). In FIG. 9, the engine as the power unit is not displayed. Hereinafter, the same components as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

[Friction wheel]
The friction wheel 7 has a cylindrical shape, and is disposed in a state where the friction wheel 7 is tilted sideways toward the base surface on the back side of the belt conveyor. In this example, the friction wheel 7 is disposed only on the back side of the rear belt conveyor 2B. The rotating shaft of the winding pulley 21B of the rear belt conveyor 2B and the rotating shaft of the friction wheel 7 are parallel to each other. The rotation shaft of the friction wheel 7 is pivotally supported by a support piece 71 fixed to the support frame 24B, and the friction wheel 7 is configured to be in rolling contact with the endless belt 23B of the belt conveyor 2B. The lower end of the friction wheel 7 is slightly closer to the ground 91 than the line connecting the lower ends of the pair of front and rear belt conveyors 2F, 2B in a side view.

The weeding mechanism 12 of the second embodiment is capable of self-propelling the weeding mechanism 12 using this friction wheel 7. That is, as in the first embodiment described above, the power device is switched on to rotate the pair of front and rear belt conveyors 2F and 2B in opposite directions. Then, the friction wheel 7 rotates following the endless belt 23B of the belt conveyor 2B on the rear side ([1] and [2] in the figure). By bringing the lower end of the friction wheel 7 into contact with the ground 91, a propulsive force ([3] in the figure) for moving forward can be obtained.
In the present embodiment, the friction wheel 7 is used as the driven vehicle. However, the present invention is not limited to this, and a gear or a sprocket vehicle may be used. Further, instead of transmitting the rotational output of the engine 41 to the unwinding pulley 22B, a mechanism for transmitting the rotational output of the engine 41 to the friction wheel 7 as a driven vehicle is provided. The belt conveyor 2B on the rear side may be contact driven.

  The weeding mechanisms 11 and 12 of the first embodiment and the second embodiment can be suitably used as a collecting mechanism for pulling out seaweed and kelp growing from the bottom of the sea. In other words, in these embodiments, the engine 41 as a power unit is attached to the upper end of the operation handle 51, so that the engine 41 is not immersed in seawater, and the wakame-meka between the pair of front and rear belt conveyors 2F and 2B. It can be pulled out with entangled kelp.

[Weeding mechanism of the third embodiment]
Next, the weeding mechanism (power entrainment type) 13 of the third embodiment will be described with reference to FIG. FIG. 10 is a right side view showing the weeding mechanism. This weeding mechanism is different from the weeding mechanism of the first embodiment shown in FIG. 1 and the like in that a recovery box 81 and a weir plate 82 are provided. In FIG. 10, the engine as the power unit is not displayed.

[Recovery box]
The collection box 81 is a box that opens upward, and is attached to the back side of the belt conveyor. In this example, a collection box 81 is attached to the back side of the rear belt conveyor 2B which is the inclined side of the pair of belt conveyors 2F and 2B which are inclined obliquely. The collection box 81 is attached to the center in the vertical direction of the belt conveyor 2B on the rear side so that the edge 811 on the belt conveyor side of the upper opening is close to the endless belt 23B.

[Dam plate]
The weir plate 82 is attached to a belt conveyor different from the belt conveyor on the side where the collection box 81 is attached. In this example, a hood-shaped barrier plate 82 whose upper side is bent is attached to the upper end side (the unwinding side pulley 22F side) of the front belt conveyor 2F. The dam plate 82 is attached to the upper end side of the belt conveyor 2F on the front side so that the lower edge thereof is close to the endless belt 23F.

  Hereinafter, with respect to the weeding mechanism of the third embodiment 13, the manner in which the extracted grass is stored in the collection box 81 will be described. Through the same procedure as in the first embodiment described above, the grass that has been drawn and drawn between a pair of belt conveyors 2F and 2B that circulate in opposite directions is endless on each of the pair of front and rear belt conveyors 2F and 2B. While being sandwiched between the belts 23F and 23B, the belt 23F is transferred upward (in the direction from the winding pulleys 21F and 21B toward the winding pulleys 22F and 22B). When the endless belts 23F and 23B are separated on the upper end side (the unwinding side pulleys 22F and 22B side), the released grass is blocked by the barrier plate 82 and collected from the upper end side of the belt conveyor 2B on the rear side. It falls into the box 81 and is collected.

[Weeding mechanism of the fourth embodiment]
Next, the weeding mechanism 14 (power winding type) according to the fourth embodiment will be described with reference to FIGS. FIG. 11 is a right side view showing the weeding mechanism, and FIG. 12 is a view showing a state in which the weeding mechanism is used. In FIG. 11, the engine as the power unit is not displayed.
The weeding mechanism 14 of this embodiment is greatly different from the weeding mechanism of the first embodiment shown in FIG. 1 and the like in the positional relationship between the pair of belt conveyors 2F and 2B. In addition, it differs from the weeding mechanism of the first embodiment in that there is no auxiliary wheel.

  This embodiment is a so-called vertical weeding mechanism. That is, a plane including the rotation shafts of the respective winding pulleys 21F and 21B in the pair of front and rear belt conveyors 2F and 2B, and a winding pulley (21F) and a winding pulley (one of the belt conveyors (2F)). Each of the winding-side pulleys (21F, 21B) and each of the winding-side pulleys (22F, 22B) are arranged so that the plane including the rotation axis of 22F) is in a vertical relationship. A plane including both the rotation shafts of the winding pulley (21F) and the unwinding pulley (22F) in one belt conveyor (2F) and a winding pulley (21B) in the other belt conveyor (2B). And the plane including the rotation axis of the unwinding pulley (22B) are parallel to each other.

  The weeding mechanism 14 according to the present embodiment is effective for weeding in a place where the crops 910 that are not to be weeded are densely packed. That is, as shown in FIG. 12, when the winding pulleys 21F and 21B of the pair of belt conveyors 2F and 2B are positioned substantially parallel to the ground 91, the pair of belt conveyors 2F and 2F, Each of 2B becomes perpendicular to the ground 91. As a result, even if the crops 910 are densely packed and the space between them is narrow, the weeding mechanism 14 can be inserted vertically from above, and the grass 911 growing between the crops 910 can be effectively pulled out. You can work. Unlike using a brush cutter, there is less risk of damaging the crop 910.

  As in the first embodiment of FIG. 1, the front and rear support frames 24F and 24B are connected to each other by upper and lower connection bars 31 and 32, but the front and rear support frames 24F and 24B are biased. The tension springs 33 as the pulling means are provided in two upper and lower stages.

[Weeding mechanism of the fifth embodiment]
Next, the weeding mechanism 15 of the fifth embodiment will be described with reference to FIGS. Unlike the weeding mechanism described so far, the weeding mechanism 15 of the present embodiment is a so-called hand-rolling type weeding mechanism that does not have a power unit. FIG. 13 is a view showing a state in which the weeding mechanism of the fifth embodiment is used. FIG. 14 is a view showing a state in which the weeding mechanism is pushed forward by hand, and FIG. 15 is a view showing a state in which the weeding mechanism is pushed forward by a hand.
As described above, this weeding mechanism is greatly different from the weeding mechanism of the first embodiment illustrated in FIG. 5 and the like in that the engine (41) as a power unit is not provided. In addition, it is different from the weeding mechanism of the first embodiment in that there is no auxiliary wheel (61).

[Weeding method]
As shown in FIG. 13, the weeding mechanism 15 of the present embodiment has an operation handle 51 but does not include an engine (41). Hereinafter, a procedure for drawing out grass growing on the ground using the weeding mechanism 15 will be described.
First, the handle 511 of the operation handle 51 is grasped, and only the belt conveyor on the direction side to be advanced among the pair of belt conveyors 2F and 2B is brought into contact with the ground. Specifically, in the case of going forward, only the front belt conveyor 2F as shown in FIG. 14, and in the case of going backward, the rear side as shown in FIG. Only the belt conveyor 2B is brought into contact with the ground at its end.
Next, the weeding mechanism 15 is pushed on the ground 91 while maintaining this state. Then, the belt conveyor on the traveling direction side (the belt conveyor 2F on the front side in FIG. 14 and the belt conveyor 2B on the rear side in FIG. 15) circulates, and the other belt conveyor circulates in the opposite direction by being in contact with the belt conveyor. . Grass 911 growing on the ground 91 is caught between the pair of belt conveyors 2F and 2B and pulled out.
The extracted grass 911 is sandwiched between the endless belts 23F and 23B of the pair of front and rear belt conveyors 2F and 2B, transferred to the unwinding pulleys 22F and 22B, and discharged therefrom.

  In this embodiment, the weeding mechanism is pushed and pushed on the ground. However, for example, a mechanism for moving the weeding mechanism using gravity or magnetic force may be provided, and this mechanism may be used to advance on the ground.

[Weeding mechanism of sixth embodiment]
Next, the weeding mechanism 16 of the sixth embodiment will be described with reference to FIG. FIG. 16 is a right side view showing the weeding mechanism.
Although the weeding mechanism 16 of this embodiment is common to the weeding mechanism of the second embodiment shown in FIG. 9 in that it includes the friction wheel 7, it does not include the engine (41) as a power unit. It is different. Moreover, it differs from the weeding mechanism of the fifth embodiment shown in FIG.

[Weeding method]
Hereinafter, a procedure for extracting grass growing on the ground using the weeding mechanism will be described with reference to FIG.
First, a handle of an operation handle (not shown) is grasped, and the lower end of the friction wheel 7 is brought into contact with the ground 91. Next, with this state secured, the weeding mechanism 16 is pushed forward onto the ground 91 toward the front side without the friction wheel 7 ([1] in the figure). Then, the friction wheel 7 is rotated ([2] in the drawing), and the belt conveyor 2B on the rear side in contact with the friction wheel 7 is rotated ([3] in the drawing). Further, the belt conveyor 2B on the rear side contacts and follows the belt conveyor 2B on the rear side, and the belt conveyor 2F on the front side circulates in the opposite direction ([4] in the figure). Grass 911 growing on the ground 91 is caught between the pair of belt conveyors 2F and 2B and pulled out.
The extracted grass 911 is sandwiched between the endless belts 23F and 23B of the pair of front and rear belt conveyors 2F and 2B, transferred to the unwinding pulleys 22F and 22B, and discharged therefrom.

  This completes the description of the weeding mechanism. Next, an example of the tweezer mechanism will be described with reference to FIGS.

17 to 22 showing the tweezer mechanism, FIGS. 17 to 20 relate to a so-called power winding type tweezer mechanism having a power device, while FIGS. 21 and 22 illustrate the power device. The present invention relates to a so-called hand-rolling type hair removal mechanism that is not provided. In addition, the tweezer mechanism illustrated below demonstrates that a size is smaller than the weeding mechanism mentioned above.
First, the tweezer mechanism (power winding type) of the first embodiment will be described by way of example with reference to FIGS.

[Tweeping mechanism of the first embodiment]
As shown in FIGS. 17 to 20, the tweezer mechanism 17 of the first embodiment includes a tension spring as a pulling means in addition to a pair of belt conveyors and two small motors as a power unit. Hereinafter, the same reference numerals are given to the same components as the above-described weeding mechanism.

[belt conveyor]
A pair of front and rear belt conveyors 2F and 2B are respectively endless belts 23F composed of winding pulleys 21F and 21B, unwinding pulleys 22F and 22B, and four thin belts 231F and 231B wound around these pulleys. , 23B. The winding pulleys 21F and 21B are arranged near the skin 92, the winding pulleys 22F and 22B are arranged farther from the skin 92 than the winding pulley, and the pair of front and rear belt conveyors 2F and 2B are inclined obliquely. It is a vertical type.
The pair of front and rear belt conveyors 2F and 2B face each other. That is, the rotation axes of the winding pulleys 21F and 21B in each of the pair of belt conveyors 2F and 2B are parallel to each other, and the winding pulley (21F) and the winding pulley (one of the belt conveyors (2F)) ( The plane including both rotation axes of 22F) and the plane including both rotation axes of the winding pulley (21B) and the unwinding pulley (22B) in the other belt conveyor (2B) are parallel to each other.

  The four thin belts 231F and 231B are each made of rubber, and are wound around the winding pulleys 21F and 21B and the winding pulleys 22F and 22B in a state of being arranged in the width direction.

  The pair of front and rear belt conveyors 2F and 2B is located at a position where one (2F) is displaced along the belt conveyor transfer direction with respect to the other (2B). That is, a plane including the rotation shafts of the respective winding pulleys 21F and 21B in the pair of front and rear belt conveyors 2F and 2B, and a winding pulley (21F) and a winding pulley (one of the belt conveyors (2F)). The pair of front and rear belt conveyors 2F and 2B are arranged so as to be shifted in the transport direction so that the plane including the rotation axis 22F) is not perpendicular to the plane. In the present embodiment, the front belt conveyor 2F is shifted from the rear belt conveyor 2B obliquely downward (skin 92 side) along the belt conveyor transfer direction.

  The pair of front and rear belt conveyors 2F and 2B are supported by front and rear support frames 24F and 24B that support the rotation shafts of both the winding pulleys 21F and 21B and the unwinding pulleys 22F and 22B, respectively. The front and rear support frames 24F and 24B are connected to each other by upper and lower connecting bars 31 and 32 so as to be able to approach and separate from each other.

[Drawing means]
Further, the front and rear support frames 24F and 24B are connected to each other by a tension spring 33 as a pulling means, whereby the pair of belt conveyors 2F and 2B are urged toward each other.
Then, as shown in FIG. 19, the tensioned portion 23T of the endless belt 23F in the vicinity of the winding pulley 21F of the front belt conveyor 2F is connected to the endless belt 23B by the winding pulley 21B of the rear belt conveyor 2B. Thus, the tensioned portion 23T of the endless belt 23F is cut into the inner side of the belt conveyor 2F on the front side, being pressed from the surface of the endless belt 23F.

  In addition, the tension part 23T of the endless belt 23F is pressed from the surface of the endless belt 23F by the winding side pulley 21B without the drawing means, and the tension part 23T bites into the inner side of the belt conveyor 2F on the front side. The relative positions of the pair of belt conveyors may be fixed by the upper and lower connecting bars 31 and 32 as they are. However, it is preferable to provide a drawing means for stable operation.

[Power equipment]
The power unit is for supplying the circulatory power to the pair of belt conveyors 2F and 2B. As shown in FIG. 17, in this embodiment, small motors 42F and 42B are attached to the rotation shafts of the unwinding pulleys 22F and 22B, respectively, and the circumferential power is applied to the pair of belt conveyors 2F and 2B by a so-called direct drive system. The two small motors 42F and 42B rotate in the opposite direction at the same speed, whereby the pair of belt conveyors 2F and 2B circulate in the opposite direction at the same speed. In the present embodiment, as shown in FIG. 20, when viewed from the right side, the small motor 42F on the front side rotates counterclockwise, and the small motor 42B on the rear side rotates clockwise at the same rotational speed. The small motor 42B is accommodated in a motor accommodating portion 550 provided in the grip portion 55 so that it cannot be visually confirmed from the outside. The power supply device for driving both small motors 42F and 42B is omitted.
A small motor may be attached to only one of the rotating shafts of the unwinding pulleys 22F and 22B. In this case, the other belt conveyor is in contact with one of the belt conveyors that is circulated by a small motor.

[Training wheels]
Moreover, in this embodiment, the auxiliary wheel 61 as a moving means is attached to the left and right two places on the back side of the rear belt conveyor 2B (the side opposite to the side facing the front belt conveyor 2F). The auxiliary wheel 61 is attached such that the lower end of the front belt conveyor 2F, the lower end of the rear belt conveyor 2B, and the lower end of the auxiliary wheel 61 are all aligned in a straight line in a side view.
By providing the auxiliary wheel, it is easy to move on the skin, and an easy-to-use tweezer mechanism is provided.

[Tweeping method]
Next, a procedure for pulling out body hair growing from the skin using the above-described hair removal mechanism 17 will be described. First, when the small motors 42F and 42B are switched on (not shown), the rotation shaft of the motor rotates, and the unwinding pulley 22F and unwinding pulley 22B connected directly to the rotation shaft rotate. To do. Then, the belt conveyor 2F on the front side starts to circulate in the direction in which the endless belt 23F on the side facing the belt conveyor 2B on the rear side moves from the winding pulley 21F toward the winding pulley 22F. The belt conveyor 2B starts to circulate in the direction in which the endless belt 23B facing the front belt conveyor 2F moves from the winding pulley 21B toward the winding pulley 22B. At this time, the pair of front and rear belt conveyors 2F and 2B circulate in opposite directions.
For example, as shown in FIG. 20, the user of the tweezer mechanism 17 grasps the gripping portion 55, makes the winding pulleys 21F and 21B approach the skin 92 with the auxiliary wheel 61 as a fulcrum, and in this state, on the skin 92 Move forward or backward. Then, the hair 921 growing on the skin 92 is drawn between the pair of belt conveyors 2F and 2B that circulate in opposite directions. The pulled hair 921 is sandwiched between the endless belts 23F and 23B of the pair of front and rear belt conveyors 2F and 2B, transferred to the unwinding pulleys 22F and 22B, and discharged therefrom.

It is also possible to make the tweezer mechanism self-propelled by using the belt conveyors 2F and 2B that circulate. Specifically, the propulsive force for moving forward can be obtained by bringing the end of the belt conveyor 2F on the forward side, which is the traveling direction side, of the pair of belt conveyors 2F and 2B into contact with the skin.
For example, if the tweezer mechanism does not have the auxiliary wheel 61, the rear belt conveyor 2B, which is the traveling direction side of the pair of belt conveyors 2F and 2B, is brought into contact with the skin to move backward. You can also get the driving force for

  In the present embodiment, the auxiliary wheel 61 is attached to the back side of the belt conveyor 2 </ b> B on the rear side, but a plate-like warp may be attached instead of the auxiliary wheel 61. Moreover, you may attach the auxiliary wheel 61 or a plate-shaped warp to both the back side of the back belt conveyor 2B, and the back side of the front belt conveyor 2F.

[Tweeping mechanism of the second embodiment]
Finally, the tweezer mechanism 18 of the second embodiment will be described with reference to FIGS. 21 and 22. The tweezer mechanism of this embodiment is a so-called hand-rolling tweezer mechanism. FIG. 21 is a view showing a state in which the tweezer mechanism of the second embodiment is pushed forward by hand, and FIG. 22 is a view showing a state in which the tweezer mechanism is pushed forward by hand. In these figures, the hair (921, see FIG. 20) growing on the skin is omitted.
This tweezer mechanism 18 differs greatly from the tweezer mechanism of the first embodiment illustrated in FIG. 20 and the like in that it does not include a small motor (42F, 42B) as a power unit. In addition, it differs from the tweezer mechanism of the first embodiment in that there is no auxiliary wheel (61).

[Tweeping method]
As shown in FIG. 21, the tweezer mechanism 18 of the present embodiment does not include a power unit. Hereinafter, a procedure for pulling out the hair (921) growing on the skin 92 using the present tweezer mechanism 18 will be described.
First, the grip part 55 is gripped, and only the belt conveyor on the direction side to be advanced among the pair of belt conveyors 2F and 2B is brought into contact with the skin 92. Specifically, in the case of going forward, only the front belt conveyor 2F as shown in FIG. 21, and in the case of going backward, the rear side conveyor as shown in FIG. Only the belt conveyor 2B is brought into contact with the skin 92 at its end.
Next, with this state secured, the main tweezer mechanism 18 is pushed onto the skin. Then, while the belt conveyor of the advancing direction circulates, it contacts and follows this and the other belt conveyor circulates in the opposite direction. The hair (921) growing on the skin 92 is caught between the pair of belt conveyors 2F and 2B and pulled out.
The pulled hair (921) is sandwiched between the endless belts 23F and 23B of the pair of front and rear belt conveyors 2F and 2B, transferred to the unwinding pulleys 22F and 22B, and discharged therefrom.

  Although the present invention has been described above with reference to specific embodiments, the present invention is not limited to the above-described embodiments, and claims attached to the application of the present application by those skilled in the art or the like. Various changes and modifications can be made without departing from the scope.

  For example, in each of the above-described embodiments, the endless belt includes a plurality of thin belts arranged in the width direction. However, the endless belt is not limited thereto, and may be configured by a single thick belt. However, it is preferable to use a plurality of thin belts arranged in the width direction because the plant can be easily pulled out.

  The material of the endless belt is not particularly limited, and for example, a rubber belt, a metal net, or a cloth can be used. However, it is preferable to use a rubber belt because the plant can be easily pulled out. In particular, when an endless belt in which a plurality of thin belts are arranged in the width direction is used, the use of a rubber belt makes it easier to hold the plant sandwiched between the narrow belts adjacent to each other in the width direction. This is preferable because the body can be easily pulled out.

  Furthermore, the surface side of the endless belt may be flat or uneven. Concave and convex lines may be provided continuously along the conveying direction of the endless belt. Thereby, the endless belts in the pair of belt conveyors facing each other are fitted with the concavo-convex lines so that the plant can be easily pulled out.

  In each of the above embodiments, an example of extracting a plant that grows from a horizontal base surface (ground or skin) has been described, but the extraction mechanism of the present invention is a base surface with unevenness such as a vine in a field, The present invention can also be applied to a tilted base surface or a vertical base surface. Further, the pulling mechanism of the present invention can be used as an end effect of a magic hand or a robot arm, and by this, a plant that grows out of reach of the ceiling or the like can be pulled out.

  Further, the pulling mechanism of the present invention is highly practical and can be applied to the following uses. For example, it can be widely applied to applications such as removing fruits from fruits such as fruits, removing squid legs, removing fish scales, and stripping chicken wings.

It is a right view which shows the weeding mechanism (drawing mechanism) of 1st embodiment. It is a front view of the weeding mechanism of FIG. It is a left view of the weeding mechanism of FIG. It is an enlarged view of the P section in FIG. It is a figure which shows a mode that the weeding mechanism of FIG. 1 is used. It is a figure which shows the state which is making the weeding mechanism of FIG. 1 self-propelled ahead. It is a figure which shows the state which is making it self-propelled in the back of the modification of the weeding mechanism of FIG. It is a right view which shows another modification of the weeding mechanism of FIG. It is a right view which shows the state which is making the weeding mechanism of 2nd embodiment self-propelled ahead. It is a right view which shows the weeding mechanism of 3rd embodiment. It is a right view which shows the weeding mechanism of 4th embodiment. FIG. 12 is a diagram showing a state in which the weeding mechanism of FIG. 11 is used. It is a figure which shows a mode that the weeding mechanism of 5th embodiment is used. FIG. 14 is a diagram showing a state in which the weeding mechanism of FIG. 13 is pushed forward by hand. FIG. 14 is a diagram showing a state in which the weeding mechanism of FIG. 13 is pushed forward. It is a figure which shows a mode that the weeding mechanism of 6th embodiment is made to push forward ahead. It is a right view which shows the tweezers mechanism (drawing mechanism) of 1st embodiment. FIG. 18 is a front view showing the tweezer mechanism of FIG. FIG. 18 is an enlarged view of a portion Q in FIG. FIG. 18 is a diagram showing a state in which the tweezer mechanism of FIG. 17 is used. It is a figure which shows a mode that the tweezer mechanism of 2nd embodiment is pushing forward ahead. FIG. 22 is a diagram showing a state in which the tweezer mechanism of FIG. 21 is pushed forward by hand.

Explanation of symbols

11-16 Weeding mechanism (drawing mechanism)
17,18 Tweezer mechanism (Puller mechanism)

2F, 2B belt conveyor
21F, 21B Pull-in pulley
22F, 22B Unwinding pulley
23F, 23B Endless belt
23T endless belt tension
24F, 24B Support frame

33 Tension spring (attraction means)

41 Engine (Power unit)
42F, 42B Small motor (power equipment)

7 Friction vehicle (driven vehicle)
81 Collection box

91 Ground (base)
911 Grass (plant)
92 Skin (base)
921 Hair (plant)

Claims (13)

An extraction mechanism for extracting the plant that is rooted in the base and growing from the base surface,
A pair of belt conveyors facing each other,
By rotating this pair of belt conveyors in opposite directions,
The plant growing from the base surface is wound between the pair of belt conveyors and pulled out,
In the pulling mechanism ,
The pair of belt conveyors
A winding-side pulley disposed near the base surface, a winding-side pulley disposed farther from the base surface than the winding-side pulley, and an endless belt wound around the winding-side pulley and the winding-side pulley And, respectively,
Among the pair of belt conveyors, the tension part of the endless belt in the vicinity of the winding pulley of one belt conveyor is pressed from the surface by the winding pulley of the other belt conveyor, and the tension part bites inward. The pulling mechanism.
A pair of belt conveyors
A winding-side pulley disposed near the base surface, a winding-side pulley disposed farther from the base surface than the winding-side pulley, and an endless belt wound around the winding-side pulley and the winding-side pulley And, respectively,
The endless belt,
A plurality of thin belts arranged in the width direction.
The extraction mechanism according to claim 1 .
A pair of belt conveyors
By linking the support frames that support each other by means of drawing, they are biased toward each other.
The extraction mechanism according to claim 1 or 2 .
Equipped with a power unit for rotating a pair of belt conveyors,
The extraction mechanism according to any one of claims 1 to 3 .
Of the pair of belt conveyors, only one belt conveyor is connected to the power unit,
The extraction mechanism according to claim 4 .
A pair of belt conveyors are both connected to the power unit and configured to circulate in opposite directions at the same speed.
The extraction mechanism according to claim 4 .
Near the back side of the belt conveyor,
With an endless belt and a driven vehicle
The extraction mechanism according to any one of claims 4 to 6 .
The pulling mechanism
It is not equipped with a power unit for rotating a pair of belt conveyors,
Of the pair of belt conveyors, only the belt conveyor on the traveling direction side pushes the base surface in a state where the end portion is in contact with the base surface, so that the belt conveyor on the traveling direction side circulates and is in contact with this. Let the other belt conveyor go around,
The plant growing on the base surface was configured to be drawn between a pair of belt conveyors and pulled out.
The extraction mechanism according to any one of claims 1 to 3 .
On the back side of the belt conveyor,
Equipped with a collection box for collecting the extracted plant,
The extraction mechanism according to claim 1 .
The pulling mechanism
It is a weeding mechanism for pulling out grass growing from the ground.
The extraction mechanism according to any one of claims 1 to 9 .
The pulling mechanism
It is a tweezers mechanism for pulling out the hair that grows from the skin.
The extraction mechanism according to any one of claims 1 to 9 .
The pulling mechanism
It is a collection mechanism for pulling out seaweed and kelp growing from the bottom of the sea.
The extraction mechanism according to any one of claims 1 to 9 .
Used as an end effector,
The extraction mechanism according to any one of claims 1 to 9 .

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