Grass Net Installation Device

Abstract

The present invention relates to a grass net laying device that, when laying grass nets on the ground, can lay grass nets quickly at once with a relatively wide width using a plurality of net winding rolls, and can lay adjacent pairs of grass nets so that they naturally overlap by a predetermined width. A grass net laying device according to the present invention for solving the above problem is configured such that a plurality of net winding rolls (2) are arranged in a plurality of rows spaced apart at a predetermined interval in the front-rear direction based on the laying direction, and the plurality of net winding rolls are configured such that one end of a pair of net winding rolls located in the front-rear direction and adjacent to each other overlaps by a predetermined width.

Description

Technology Field

[0001] The present invention relates to a turf net laying device, and more specifically, to a turf net laying device used to lay a turf net on the ground to stably grow grass on a ground where grass formation is required, such as a golf course or a park. Background Technology

[0002] Generally, grass is planted and grown on the ground in places such as golf courses or parks. However, when the planting area is large and the terrain is complex, there is a problem in that it is difficult to grow the grass uniformly, and it also takes a long time to grow the grass.

[0003] To solve these problems, a method for planting grass disclosed in Registered Patent Publication No. 2117390 (hereinafter referred to as 'Patent Document 1') is disclosed.

[0004] The above-mentioned patent document 1 describes a method of removing rubble and impurities from the ground (floor) where grass is to be planted, and then laying a grass net to cultivate the grass, thereby enabling grass to be laid and cultivated easily and quickly over a large area.

[0005] However, in the case of the above-mentioned patent document 1, there is a difficulty in laying the grass nets with a predetermined width of overlap so that no gap is formed between the grass nets, and because of this, the worker has to manually move the roll on which the grass nets are wound to carry out the laying work, which results in a problem where the work takes a long time.

[0006] In addition, there is the difficulty of having to install separate fixing pins to prevent the overlapping parts of the installed grass net from moving unintentionally.

[0007] Meanwhile, various devices have been developed in the past to quickly lay a laying member (covering material, etc.) wound on a roll (paper tube) having a predetermined length. As a prior art for this purpose, the laying and direct seeding device for agricultural covering material disclosed in Registered Patent Publication No. 0884569 (hereinafter referred to as 'Patent Document 2') is disclosed.

[0008] The above-mentioned patent document 2 comprises: a drive unit coupled to the rear of an agricultural machine and configured to generate power by means of a drive gear formed on one side of the shaft, comprising a movable wheel, an axle, and an axle housing to enable movement; and a covering material laying unit configured such that a cylindrical roller is provided on the front side of the drive unit to wind an agricultural covering material, and a driven gear connected to the drive gear by a chain is provided on one side thereof. A seed direct sowing unit configured such that a rectangular tubular direct sowing pipe is installed on the upper part of the above-mentioned driving unit, a driven gear connected to the driving gear by a chain is provided on one side of the direct sowing pipe, a projection is provided on one side of the driven gear, an interlocking gear is formed at a position adjacent to the driven gear, a seed discharge port and a pressing plate are provided at the lower part of the direct sowing pipe, and a switch, a solenoid, and a connector are installed on the upper part of the direct sowing pipe, wherein as the driven gear rotates by the chain coupling with the driving gear, the projection of the driven gear comes into contact with or separates from the switch to turn the switch on / off, and the electrical signal generated thereby is sent to the solenoid, causing the solenoid to contract and expand, and as the connector connected thereto rotates according to the operation of the solenoid, the seed discharge port is opened and closed; and a seed supply unit coupled to the upper part of the above-mentioned seed direct sowing unit, comprising a driven gear connected to the interlocking gear by a chain, a seed discharge port installed on one side thereof, and a hopper for storing and supplying seeds; It is composed of a compaction unit consisting of a compaction wheel, a connecting member, and a spring, which is installed at the rear of the above-mentioned drive unit to compact the ground after direct seeding is completed.

[0009] However, the laying device of the above-mentioned patent document 2 is configured such that the covering material is laid along the row where seeds are sown. When laying a turf net using such a conventional laying device, the turf net is laid one row at a time, making it difficult to lay the turf net so that it overlaps by a predetermined width, and there is also a problem that it takes a long time to lay the turf net over a large area.

[0010] Therefore, when laying grass nets on the ground, there is a need to develop a grass net laying device with an improved structure that can lay grass nets quickly in one go with a relatively wide width using multiple net winding rolls, and allows adjacent pairs of grass nets to naturally overlap by a predetermined width. Prior art literature

[0011] KR 10-2117390 B1 (2020. 05. 26.)KR 10-0884569 B1 (2009. 02. 12.)KR 10-2095964 B1 (2020. 03. 26.)KR 10-1254020 B1 (2013. 04. 10.) The problem to be solved

[0012] The present invention was devised to solve the problems of the conventional turf net laying device described above. The problem that the present invention aims to solve is to provide a turf net laying device that, when laying a turf net on the ground, can lay a turf net quickly at once with a relatively wide width using a plurality of net winding rolls, and can lay a pair of adjacent turf nets so that they naturally overlap by a predetermined width. means of solving the problem

[0013] A turf net laying device according to the present invention for solving the above problem is characterized in that a plurality of net winding rolls are arranged in a plurality of rows spaced apart at a predetermined interval in the front-rear direction based on the laying direction, and the plurality of net winding rolls are configured such that one end of a pair of net winding rolls located in the front-rear direction and adjacent to each other overlaps by a predetermined width during laying.

[0014] Furthermore, the above-described laying device of the present invention comprises: a connecting frame of a predetermined length that is detachably installed on a towing vehicle; a mounting frame having a predetermined length in the width direction and installed on one side of the connecting frame; an extension frame of a predetermined length that is retractable and installed at both ends of the mounting frame; a first roll fixing unit installed as a pair facing each other and symmetrically on the mounting frame; and a pair of second roll fixing units installed as a pair facing each other and symmetrically on both sides of the mounting frame through the extension frame, wherein the second roll fixing unit is configured to be adjustable in the horizontal direction along the mounting frame and the extension frame, which is another feature.

[0015] In addition, another feature of the present invention is that the first roll fixing unit is installed so as to be located on the rear side relative to the mounting frame when the direction in which the towing vehicle travels is forward, and the pair of second roll fixing units are installed so as to be located on the front side relative to the mounting frame when the direction in which the towing vehicle travels is forward.

[0016] In addition, another feature of the present invention is that the connecting frame further includes a sand discharge member that discharges a predetermined amount of fixed sand toward the overlapping portion of the grass net laid from the net winding roll fixedly installed through the first and second roll fixing units. Effects of the invention

[0017] According to the present invention, since a plurality of net winding rolls are arranged and used to overlap by a predetermined width through the first and second roll fixing units, there is an advantage of being able to lay a large area relatively quickly compared to conventional laying devices.

[0018] In addition, it has the advantage of being able to appropriately adjust the overlap width of the turf net and to adjust the number of net winding rolls installed at the same time to two or more.

[0019] In addition, since a predetermined amount of fixing sand is laid along the joint of the grass net through the sand discharge member, there is an advantage in that the inconvenience of the worker having to manually install fixing pins can be reduced. Brief explanation of the drawing

[0020] FIG. 1 is a perspective view showing an example of a grass net laying device according to the present invention. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a drawing showing examples of a connecting frame, a mounting frame, and an extension frame according to the present invention. FIG. 4 is a perspective view showing an example of a first and second roll fixing unit according to the present invention. FIGS. 5 and 6 are cross-sectional views showing examples of first and second roll fixing units according to the present invention. FIG. 7 is a drawing showing an example in which a net winding roll is fixedly installed through the first and second roll fixing units according to the present invention. FIGS. 8 and 9 are drawings showing an example in which the net overlap width of a turf net laying device according to the present invention is adjusted. FIG. 10 is a drawing showing an example of a sand discharge member according to the present invention. FIG. 11 is a drawing showing an example in which a sand discharge member according to FIG. 10 is installed in a grass net laying device. FIG. 12 is a drawing showing an example in which the overlapping portion of a grass net is fixed through a sand discharge member according to the present invention. Specific details for implementing the invention

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] The present invention aims to provide a grass net laying device that, when laying a grass net on the ground, can lay a grass net quickly at once with a relatively wide width using a plurality of net winding rolls, and can lay a grass net so that an adjacent pair of grass nets naturally overlap by a predetermined width. To this end, the laying device (1) of the present invention is configured such that a plurality of net winding rolls (2) are arranged in a plurality of rows spaced apart at a predetermined distance in the front-rear direction relative to the laying direction, and the plurality of net winding rolls (2) are configured such that one end of a pair of adjacent net winding rolls (2) is positioned in the front-rear direction and laid by overlapping by a predetermined width (W).

[0023] Here, the net winding roll (2) is composed of a circular tube-shaped core (2A) having a predetermined length and a grass net (2B) of a predetermined width wound on the outer surface of the core (2A), and the laying device (1) includes a connecting frame (10), a mounting frame (20), an expansion frame (30), a first roll fixing unit (40), a second roll fixing unit (50), and a sand discharge member (60) as shown in FIGS. 1 and 2, and the components of the laying device (1) will be described in detail below.

[0024] Meanwhile, for convenience of explanation, the direction in which the connecting frame (10) is installed is referred to as the 'front' and the direction in which the first roll fixing unit (40) is installed is referred to as the 'rear'.

[0025] The connecting frame (10) is configured to connect the laying device (1) to the rear of a towing vehicle (not shown).

[0026] As shown in FIGS. 2 and 3, this connecting frame (10) includes a first frame (11) having a predetermined length in the width direction of the towing vehicle, and a second frame (12) installed such that one end is connected to the middle part of the first frame (11) and the other end has a predetermined length toward the rear, thereby allowing the first and second frames (11, 12) to be formed to have a "T" shape.

[0027] And at both ends of the first frame (11), a connecting part (11A) is provided that extends forward by a predetermined length, and this connecting part (11A) is connected to a connecting part (not shown) provided at the rear of the towing vehicle through a connecting member such as a connecting pin (not shown) and fixed.

[0028] In addition, a hinge pin or connecting pin is installed in the vertical direction at the other end of the second frame (12), and the mounting frame (20) described later is connected to rotate within a predetermined angle range through this hinge pin or connecting pin, thereby enabling the mounting frame (20) to change direction in accordance with the driving direction of the towing vehicle.

[0029] The mounting frame (20) is installed on one side of the connecting frame (10) (the other end of the second frame (12)) and has a predetermined length in the width direction.

[0030] As shown in FIG. 3, this mounting frame (20) is configured as a hollow frame with a square cross-section and a predetermined length in the left-right width direction, and a plurality of through holes (21) are formed on both sides with a predetermined spacing relative to the second frame (12) in this mounting frame (20), and through these plurality of through holes (21), the position where the second roll fixing unit (50), which will be described later, is fixed is changed so that the width (W) of the grass net (2B) overlaps is adjusted.

[0031] The extension frame (30) is installed at both ends of the mounting frame (20) so as to be retractable, thereby extending the length of the mounting frame (20) as needed and widening the range of position adjustment for the second roll fixing unit (50) being fixed.

[0032] As shown in FIG. 3, this extension frame (30) is configured as a frame with a relatively small square cross-section so as to be inserted into both ends of the mounting frame (20), and a plurality of through holes (31) are formed at a predetermined interval on one end of this extension frame (30) (opposite to the direction in which the mounting frame (20) is inserted).

[0033] And a stopper (32) of a predetermined size is installed at one end of the extension frame (30), and using this stopper (32), the user can insert the extension frame (30) into the interior of the mounting frame (20) or take it out.

[0034] In addition, the distance at which the extension frame (30) is inserted into the interior of the mounting frame (20) is limited through the stopper (32).

[0035] The first roll fixing unit (40) is installed in pairs (2 units make a set) so as to face each other symmetrically on the mounting frame (20), and the second roll fixing unit (50) is installed in pairs (2 units make a set) so as to face each other symmetrically on both sides of the mounting frame (20) via the extension frame (30). The net winding roll (2) is detached through these first and second roll fixing units (40, 50), and at the same time, the connecting frame (10), mounting frame (20), and extension frame (30) are moved along with the towing vehicle and rotated naturally so that the grass net (2B) wound on the core tube (2A) is laid on the ground.

[0036] As shown in FIGS. 4 and 5, these first and second roll fixing units (40, 50) comprise a fixing part (41, 51) having a predetermined length in the horizontal direction and one end fixed to a mounting frame (20) or an extension frame (30), an axial housing (42, 52) having a predetermined diameter located on one side of the other end of the fixing part (41, 51), a fixing shaft (43, 53) installed to penetrate the fixing part (41, 51) and the axial housing (42, 52) and one end installed to protrude a predetermined length toward one side of the axial housing (42, 52), a fixing bolt (44, 54) optionally installed to penetrate the axial housing (42, 52) vertically to fix or release the fixing shaft (43, 53) so that it protrudes toward one side of the axial housing (42, 52), and the axial housing (42, It includes a coupling nut (45, 55) that is screw-coupled to a fixing bolt (44, 54) that protrudes through 52).

[0037] At this time, the fixed part (41, 51) and the shaft housing (42, 52) are fixed together as one unit by welding or the like, and a square cross-sectional joint hole (41A, 51A) is formed at one end of the fixed part (41, 51) so that a mounting frame (20) or an extension frame (30) is installed through it.

[0038] Then, a screw connection hole (not shown in the drawing) of a predetermined diameter is formed to pass through the connection hole (41A, 51A), and a bolt (not shown in the drawing) of a predetermined length is screwed into this screw connection hole and selectively inserted through the through hole (21, 32) of the mounting frame (20) and the extension frame (30), thereby appropriately adjusting and fixing the position of the fixing part (41, 51).

[0039] Additionally, a shaft mounting hole (42A, 52A) of a predetermined diameter is formed in the shaft housing (42, 52) through which a fixed shaft (43, 53) is installed, and a through hole (not shown in the drawing) of a predetermined diameter is formed in the fixing part (41, 51) to correspond to the shaft mounting hole (42A, 52A).

[0040] In addition, one end of the fixed shaft (43, 53) (the direction in which it is inserted into the branch tube (2A)) is formed with a relatively large diameter so as not to be displaced by passing through the shaft installation hole (42A, 52A), and a stopper (43A, 53A) having a predetermined diameter is detachably installed on the other end of the fixed shaft (43, 53) (the direction in which it protrudes through the fixed part (41, 51)), thereby allowing the fixed shaft (43, 53) to be installed through the fixed part (41, 51) and the shaft housing (42, 52) without being displaced, while the distance at which the one end (the direction in which it is inserted into the branch tube (2A)) protrudes is adjusted so that the nut winding roll (2) can be detachably installed.

[0041] At this time, a fixed shaft (43, 53) is formed with an elongated hole (43B, 53B) having a predetermined length in the direction of the shaft length so that a fixed bolt (44, 54) can pass through it and the distance of the fixed shaft (43, 53) protruding can be fixed. Through this, even if the position of the elongated hole (43B, 53B) of the fixed shaft (43, 53) is not accurately positioned at the position of the fixed bolt (44, 54), the fixed bolt (44, 54) can be easily passed through the elongated hole (43B, 53B).

[0042] Through this, as shown in FIGS. 5 and 6, a fixing bolt (44, 54) and a coupling nut (45, 55) are installed through the fixing shaft (43, 53), thereby fixing one end of the fixing shaft (43, 53) so that it protrudes a predetermined distance through the shaft housing (42, 52). Conversely, by separating the fixing bolt (44, 54) and the coupling nut (45, 55), the fixing of the fixing shaft (43, 53) is released, allowing the one end to be moved so that it is inserted into the interior of the shaft housing (42, 52). When the one end of the fixing shaft (43, 53) is inserted toward the shaft housing (42, 52) in this way, the net winding roll (2) can be detached between the first roll fixing unit (40) and the second roll fixing unit (50), which face each other and form a set of two.

[0043] In addition, when the net winding roll (2) is positioned between the fixed shafts (43, 53) facing each other, and one end of the fixed shaft (43, 53) is fixed so that it protrudes to one side of the shaft housing (42, 52), as shown in FIG. 7, the position of the net winding roll (2) is fixed as the one end of the fixed shaft (43, 53) is inserted to a predetermined depth inside the tube (2A).

[0044] Meanwhile, although the above description only illustrates and explains that a fixing bolt (44, 54) and a connecting nut (45, 55) are configured to fix the protruding distance of the fixed shaft (43, 53), it is acceptable to modify the configuration to include an L-shaped fixing pin or a fixing clamp to facilitate easy attachment and detachment of the net winding roll (2).

[0045] Additionally, as shown in FIG. 8, the first roll fixing unit (40) is installed so as to be located on the rear side relative to the mounting frame (20) when the direction in which the towing vehicle travels is forward, and the second roll fixing unit (50) is installed on each side so as to be located on the front side relative to the mounting frame (20) when the direction in which the towing vehicle travels is forward. At this time, the relative position of the second roll fixing unit (50) is adjusted based on the position of the first roll fixing unit (40) so that one end of the first roll fixing unit (40) and one end of the second roll fixing unit (50) that are close to each other overlap by a predetermined width (W).

[0046] Here, it is preferable that the width (W) overlapping the first and second roll fixing units (40, 50) be adjusted within the range of 30 to 120 mm. This is because if the position of the second roll fixing unit (50) is adjusted so that the width (W) overlapping the grass net (2B) is less than 30 mm, the overlapping part may not be formed due to changes in terrain and changes in the driving direction of the towing vehicle during the process of laying the grass net (2B), and a gap may be formed where the parts are spaced apart from each other. In such gaps, grass cannot easily grow, and thus the grass cannot be formed uniformly overall, which is undesirable.

[0047] In addition, if the position of the second roll fixing unit (50) is adjusted so that the width (W) of the grass net (2B) overlaps exceeds 120 mm, the area of ​​the grass net (2B) overlaps increases, and the amount of grass net (2B) laid in the same area increases, and consequently, the construction cost and time of the grass net (2B) increase, which is undesirable.

[0048] Meanwhile, in the overlapping section where the grass net (2B) overlaps, fixing pins (P) having a predetermined length are installed at intervals of 2 to 3 meters to fix the grass net (2B) laid on the ground so that it does not move arbitrarily while the subsequent process is being carried out. These fixing pins (P) are installed manually by a worker moving along with the towing vehicle from the rear side of the laying device (1). Therefore, as the laying area becomes larger, the number of fixing pins (P) that need to be installed increases, and there is a problem that a large amount of manpower and time is required to install the fixing pins (P).

[0049] Accordingly, to solve the above-mentioned problem, the present invention may further install a fixing pin automatic installation device (not shown) in the connecting frame (10) that automatically fires fixing pins (P) at predetermined intervals according to the width (W) of the overlapping portion and presses them into the ground.

[0050] The above-described automatic fixing pin installation device may be configured to include a camshaft (not shown) installed to rotate at a predetermined rotational ratio in conjunction with the rotation of a net winding roll (2), a fixing pin launcher (not shown) that discharges a fixed pin stored at a predetermined speed by the operation of the camshaft, and a presser (not shown) that presses and inserts the fixing pin launched into the ground through the fixing pin launcher.

[0051] Meanwhile, although the above description only describes the installation of a fixing pin (P) in the overlapping portion of the grass net (2B), it can be modified so that fixing sand (S) is laid along the overlapping portion of the grass net (2B) and the overlapping portion of the grass net (2B) is fixed by the weight of the fixing sand (S). In this case, instead of installing an automatic fixing pin installation device on the connecting frame (10), a sand discharge member (60) can be installed as shown in FIGS. 10 and FIGS. 11.

[0052] This sand discharge member (60) may be configured to include a hopper (61) that receives a predetermined amount of sand and a fixing part (62) for selectively fixing the hopper (61) to a connecting frame (10).

[0053] And on the bottom surface of the hopper (61), a camshaft (not shown) that rotates at a predetermined rotational ratio in accordance with the rotation of the net winding roll (2) when the laying device (1) moves, and an opening / closing door (not shown) that opens and closes repeatedly by the rotational movement of the camshaft may be installed.

[0054] When the laying device (1) moves along the traction device through the above configuration, as shown in FIG. 12, the grass net (2B) wound on the branch tube (2A) of the net winding roll (2) is laid so that it overlaps by a predetermined width (W), and at the same time, a predetermined amount of fixing sand (S) is discharged toward the overlap portion to fix the overlap portion of the grass net (2B).

[0055] At this time, the user can connect the camshaft and the opening / closing door to interlock as needed or disconnect them, thereby allowing the opening / closing door to repeat the opening / closing operation or remain in an open state, so that the fixed sand (S) is discharged at predetermined intervals along the overlapping section or continuously discharged.

[0056] Meanwhile, although the above description only illustrates and explains that three net winding rolls (2) are arranged in an alternating pattern in the front-rear direction, the method may be modified to form a longer horizontal length of the mounting frame (20) and then arrange four or more net winding rolls (2) in an alternating pattern in the front-rear direction.

[0057] As explained above, since the present invention is used in such a way that a plurality of net winding rolls are arranged to overlap by a predetermined width through the first and second roll fixing units, a large area can be laid relatively quickly compared to conventional laying devices.

[0058] In addition, the overlapping width of the turf net can be appropriately adjusted, and the number of net winding rolls installed simultaneously can be adjusted to two or more.

[0059] In addition, since a predetermined amount of fixing sand is laid along the joint of the turf net through the sand discharge member, the inconvenience of the worker manually installing fixing pins can be reduced.

[0060] For the convenience of explanation, drawings illustrating preferred embodiments and configurations shown in the drawings have been described above using reference numerals and names; however, as this is merely one embodiment according to the present invention, the scope of the rights should not be interpreted as being limited to the shapes shown in the drawings and the assigned names. It is considered entirely obvious that modifications to various shapes predictable from the description of the invention and simple substitutions with configurations performing the same function fall within the scope of modifications that a person skilled in the art can easily implement. Explanation of the symbols

[0061] 1: Installation device 2: Net winding roll 2A: Branch tube 2B: Grass net 10: Connecting frame 11: First frame 11A: Connection part 12: Second frame 20: Mounting frame 21: Through hole 30: Expansion frame 31: Penetrating hole 32: Stopper 40: 1st Roll Fixing Unit 41: Fixing part 41A: Connecting hole 42: Celebration Hinge 42A: Celebration Installation Worker 43: Fixed shaft 43A: Stopper 43B: Elongated hole 44: Fixing bolt 45: Connecting nut 50: Second roller fixing unit 51: Fixing part 51A: Connecting hole 52: Celebration Hinge 52A: Celebration Installation Worker 53: Fixed shaft 53A: Stopper 53B: Elongated hole 54: Fixing bolt 55: Connecting nut 60: Sand discharge member 61: Hopper 62: Fixed part P: Fixing pin S: Fixing sand W: Overlap width

Claims

Claim 1 In a grass net laying device (1) for laying a grass net on the ground, the laying device (1) is configured such that a plurality of net winding rolls (2) are arranged in a plurality of rows spaced apart at a predetermined interval in the front-rear direction relative to the laying direction, wherein the plurality of net winding rolls (2) are configured such that one end of a pair of net winding rolls (2) located in the front-rear direction and adjacent to each other overlaps by a predetermined width (W) and the laying device (1) comprises: a connecting frame (10) of a predetermined length that is detachably installed on a towing vehicle; a mounting frame (20) having a predetermined length in the width direction and installed on one side of the connecting frame (10); an extension frame (30) of a predetermined length that is retractable and installed at both ends of the mounting frame (20); and a first roll fixing unit (40) installed as a pair facing each other and symmetrically on the mounting frame (20). A grass net laying device comprising: a pair of second roll fixing units (50) each installed so as to be positioned on both sides of the mounting frame (20) through the extension frame (30) and symmetrically facing each other; wherein the second roll fixing units (50) are configured to allow for horizontal position adjustment along the mounting frame (20) and the extension frame (30). Claim 2 delete Claim 3 A grass net laying device according to claim 1, wherein the first roll fixing unit (40) is installed so as to be located on the rear side relative to the mounting frame (20) when the direction in which the towing vehicle travels is forward, and the pair of second roll fixing units (50) are installed so as to be located on the front side relative to the mounting frame (20) when the direction in which the towing vehicle travels is forward. Claim 4 A grass net laying device according to claim 1, characterized in that the connecting frame (10) further has a sand discharge member (60) installed therein to discharge a predetermined amount of fixed sand (S) toward the overlapping portion of the grass net being laid from the net winding roll (2) fixedly installed through the first and second roll fixing units (40, 50).

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