KR101911384B1 - Soil scattering protector for rotary - Google Patents

Abstract

Disclosed is a soil scattering preventer for rotary.
The present invention is characterized in that a bushing body having a plate shape is provided in the front of a rotary body in a width direction and the bushing body has a central body and a main body and an extending body on both sides thereof, And a fastening portion formed at the rear end of the fixed body so as to be mounted to a shaft housing of a gear box traversing an upper end of the rotary body is provided and the weight of the bodyshell body And a main body which is the bodyshell body, a main body and a tip end of the main body, which are in contact with each other in the form of a front surface of the main body and are bent down so as not to be lifted, And a scattering prevention member provided on the outer periphery of the rotary shaft, It can be easily adjusted to a width suitable for the width of the rotary and can be installed in a customized manner by moving it in the forward and backward directions of the rotary. Therefore, it can be easily installed and used in a simple and easy manner to a rotary maker or rotary machine.

Description

{SOIL SCATTERING PROTECTOR FOR ROTARY}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil scattering prevention apparatus for rotary, and more particularly, to a soil scattering prevention apparatus for rotary, which is capable of preventing scattering to the rear of a tractor in front of a rotary by tillage- To a soil scattering prevention device for rotary.

Generally, it is rotary to connect to upper / lower link behind tractor. The rotary is connected to the power take off shaft, which is the power output shaft behind the tractor. - It is connected to the input shaft of the rotary tip through the shaft and receives the power. And as the power output shaft is driven, - The shaft is driven.

The trolley has a trolley-shaft rotatably installed at a lower portion of the rotary body so as to be connected to the power-discharging shaft of the tractor, and a plurality of tiller-blades are uniformly arranged on the main surface of the trolley- There is provided an upper and a lower connection bracket for connection with the lower and upper links of the frontal tractor of the rotary body, and the rotary work to the rear of the rotary body, that is, the soil discharged by the tiller- And a rear cover for preventing the rear portion from scattering and flattening the rear cover.

In the tilling operation using the rotary configured as described above, the lower tiller shaft is rotated while the rotary is pulled by the tractor. As the tiller shaft is rotated, the tiller-blade of the tiller shaft pivots In addition, it crushes and breaks it down and discharges it to the rear. At this time, the rear carver at the rear end of the rotary body performs an operation to smoothly stop the soil scattered rearward by the tiller-blade.

When performing the tilling operation as described above, since the front part of the rotary body is largely opened, the soil is scattered to the front of the rotary so that the rear part of the tractor is contaminated, and even the operator who is aboard the tractor scatters the soil, And so on.

A soil scattering prevention device for preventing the soil from scattering toward the rear of the tractor in front of the rotary is disclosed in Korean Registered Utility Model Nos. 20-0118927, 20-0147812, and 10-2012-0108745 .

Registration Utility Model No. 20-0118927 discloses that a protective cover is provided horizontally on the lower portion of the tractor through a coupling iron and a stretchable member is connected to the rear end of the protective cover and the rear end of the stretchable member is provided at the tip of the rotary The connection was to be installed.

Registration Utility Model No. 20-0147812 discloses a method of connecting a bushing carver made of a metal plate to both side plates of a rotary body by using bolts and connecting the bushing carver to the lower connection bracket by a lift induction pipe, Therefore, when the rotary tilling operation is performed, the bottom height of the mudguard cover is adjusted by rotating the mudguard cover in consideration of the efficiency of the tilling operation as well as the prevention of scattering of the soil toward the rear of the tractor in front of the rotary.

In the patent application 10-2012-0108745, a bushing carver is provided in an arcuate shape that blocks the front surface of the rotary body. When a tilling operation is performed using a rotary, the soil is scattered toward the rear of the tractor in front of the rotary And to stop the soil horizontally by pushing the soil of the high area to a low place.

However, in the conventional soil shattering prevention apparatus as described above, the registered utility model No. 20-0118927 can prevent the soil from being scattered to the rear upper portion of the tractor because the protective carver is installed horizontally below the lower link of the tractor There is a problem that a large amount of soil can not be prevented from scattering to the rear lower side of the tractor because the lower front of the protective carver is open.

Registration Utility Model No. 20-0147812 is a complicated and inconvenient process for fixing the bottom of the mudguard carver by aligning the mudguard carver to the top of the ridges according to the ridges and ridges of the front ridges. The lower part of the bushing carver and the furrow part were inevitably opened, so that the soil could be scattered to the front of the rotary through the opening part.

The latter patent discloses that when carrying out tillage operations with the rotary moving forward with the tractor, especially when the paddy is overturned by the plow, the soil of the unglazed part is uneven, so that the soil is piled up in front of the bushy carver, The phenomenon is likely to occur, and consequently, the load on the tiller of the rotary may be increased, resulting in an overturning of the rotary overload.

Particularly, all of the above-described conventional soil scattering prevention devices are designed to be suitable for only one type of machine, and can be adjusted to a length suitable for the width of the rotary according to the type of rotary maker and rotary, or moved forward and backward of the rotary, There is a problem that it can not be installed.

KR 20-0118927 Y1 (Registered on March 10, 1998) KR 20-0147812 Y1 (Registered on March 11, 1999) KR 10-2012-0108745 A (Released May 10, 2012)

In order to solve the above-mentioned conventional problems and disadvantages, a bodyshell body is provided with a central body, a main body and an extension body on both sides of the body, and the bodyshell body is moved in the forward and backward directions of the rotary So that the length of the rotary body can be varied in the width direction of the rotary body. Therefore, the length of the rotary body can be easily adjusted to a width suitable for the width of the rotary body, And to provide a soil scattering preventer for rotary that can be easily and customarily installed and used in a rotary type machine.

Another object of the present invention is to provide a fastening unit comprising a pair of semicircular couplings or the like formed at the tip of a fixed base and having a type of bolt or a circle, and a screw type support member capable of preventing the bending of the bushing body and adjusting the height thereof, So that it can be easily mounted on a shaft housing of a gear box that traverses a conventional rotary body.

A further object of the present invention is to provide a bushing body which is provided with a straight brush or a flexible plate cut at a predetermined interval on the front surface of the bushing body so as to be freely dragged downward and to be lifted in accordance with the surface shape (flat or curved shape by ridges and furrows) So that the soil can be prevented from scattering to the front of the rotary body during the tilling operation using the rotary.

In order to achieve the above object, a rotary soil separator according to the present invention is characterized in that a bushing body having a plate shape is provided in a width direction in front of a rotary body, the bushing body having a central body, a main body and an elongated body And a fastening portion extending rearwardly from the upper surface of the main body and the extension body is provided and a fastening portion capable of being mounted on a shaft housing of a gear box traversing an upper end of the rotary body is provided at a rear end of the fastening portion, And a scattering prevention member provided at the front end of the main body and the main body, which are the bodyshell body, and the main body and the extension body, respectively, which are bent downwardly so as not to be lifted by abutting against each other.

The fastening portion includes a hollow member mounted parallel to the rear end of the fixing table, a type bolt which surrounds the shaft housing of the gear box and has an end portion passing through the hollow member, and a type bolt And a nut fastened to an end of the nut.

A screw type support for preventing the bending of the bushing body against weight and adjusting the height of the bushing body is provided in the middle of the fixing base and a bolt hole is formed at the tip of the fixing base so as to be fastened to the plate material of the main body through the second fastening member And a perforated bracket is provided.

The fixing table is divided into two first and second fixing tables so that the length of the fixing table can be adjusted to an appropriate length according to the type of the rotary manufacturing machine and the rotary, and the connecting portions are selectively fastened by the fixing member for adjusting the table fixing.

The scattering-preventing member is characterized in that it is provided with a band-shaped long fixing member and a bundled brush in which a large amount of resin wires are arranged over the entire length of the fixing member in a direction perpendicular to the longitudinal direction of the fixing member.

In addition, the shatterproof member may be formed of a flexible rubber material such as rubber. In this case, the lower portion of the rubber material may be cut into several tens of pieces ranging from the middle to the bottom so that the lower portion of the rubber material may serve as a brush. .

The main body, the main body, and the extension body, which are the bodyshell body, are arranged in the transverse direction of the central body so as to adjust the bodyshell body in the width direction or the longitudinal direction of the rotary body, And first to fourth rectangular holes are formed in the width direction and the length direction of the elongated body and the body connecting fastening members are fastened through the first to fourth rectangular holes of the bodies.

The gripping member is attached to the upright extension portion by a first fastening member such as several bolts, and the gripping member has a groove for receiving the fastening member so as to fix the fastening member of the scattering prevention member and to exchange the scattering prevention member with ease And is provided in a diagonal shape or an inequality shape.

The rotary type soil dissipator according to the present invention is characterized in that a bodyshell body is provided as a main body and an extension body on both sides of a central body and the bodyshell body is moved in forward and backward directions of the rotary, It is possible to easily adjust the length according to the width of the rotary according to the type of the rotary manufacturer and the rotary, and it can be installed in a customized manner by moving in the forward and backward directions of the rotary, So that it can be used in a customized manner.

In addition, the present invention can be easily mounted to a shaft housing of a gear box that traverses a conventional rotary body by providing a fastening portion such as a bolt or a pair of semicircular couplings forming a circle at the tip of the fastening base, A screw type support is provided in the middle to prevent sagging of the bushing body and also has a useful effect of adjusting the height.

Further, according to the present invention, a straight brush or a lower plate is formed on a front surface of a bushing body by a flexible plate member cut at a predetermined interval so as to be freely slidable downwardly so that the front surface of the bushing body is flat, So that it has a useful effect that the soil can be prevented from being scattered to the front of the rotary body during the tilling operation using the rotary.

1 is a perspective view showing a soil scattering preventive device for rotary according to a preferred embodiment of the present invention.
Figs. 2 and 3 are exploded perspective views showing a part of Fig. 1.
4 and 5 are cross-sectional views of a bushing body in a soil scattering preventive device for rotary of the present invention.
6 is a view showing a state in which the rotary soil scattering prevention device of the present invention is mounted on a rotary.
Fig. 7 is a perspective view showing another embodiment of the scattering prevention portion in the rotary soil scattering protection device of the present invention. Fig.
8 is a view showing another embodiment of the fastening part in the rotary soil separator according to the present invention.
FIG. 9 is a view showing another embodiment of a fixing table in a soil scattering preventer for rotary according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a rotary soil separator according to the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the scope of the inventive concept. And therefore may be different depending on the intention and custom of the user or the operator. Therefore, the definition of a term should be based on the content of the present specification.

1 to 6 are views for explaining a soil scattering preventer for rotary according to a preferred embodiment of the present invention.

The soil scattering preventive device 100 for rotary according to the present invention is installed in front of the rotary 200 and more specifically is fastened to the shaft housing 221 of the gear box 220 crossing the upper end of the rotary body 210 And is installed in front of the rotary main body 210 by being mounted through the arm portion 250.

The rotary 200 is a conventional agricultural rotary and is provided with a gear box 220 for receiving power through a universal joint shaft which is a power discharge shaft of an upper tractor and a universal joint shaft of the rotary body 210, (Not shown) that receives power from the universal joint-shaft and the gear box 220 through a gear train (not shown) as the lower end power take-off shaft of the tilting- A plurality of tiller-blades 231 are uniformly arranged on the tiller-shaft 230, and the tiller-blades 231 are uniformly arranged on the tiller- A rear carver 240 may be provided to prevent the soil discharged by the tiller-blade 231 of the shaft 230 from scattering back and flatten it.

The soil scattering preventive device 100 for a rotary of the present invention is characterized in that a bushing body 110 having a plate shape is provided in the front of the rotary body 210 in a width direction and the bushing body 110 has one central body 110A, A main body 110B and an elongated body 110C provided on both sides of the main body 110B and the elongated body 110C are provided on the upper surface of the main body 110B and the elongated body 110C, A fastening part 125 is provided at the rear end of the fixing table 120 so as to be attached to the shaft housing 221 of the gear box 220 which traverses the upper end of the rotary body 210, And a scatter preventing member 130 made of a material that sags downwardly and is bent so that it does not touch the front body of the main body 110A, the main body 110B and the extending body 110C, .

The main body 110A and the main body 110B and the elongated body 110C constituting the bushing body 110 are each made of a flat plate material 111 and the front end of the plate material 111 is bent and extended to the front lower portion And the rear end of the plate member 111 is formed with an inclined extension portion 113 which is bent and extended to the rear upper portion so as to be in contact with the front end of the rotary body 210. [

The gripping member 140 is mounted on the upstanding extension part 112 by a first fastening member 141 such as a bolt or the like and the gripping member 140 is fixed to the fixing member 131 of the scattering- And a groove for receiving the fixing member 131 so that the scattering prevention member 130 can be easily exchanged. Although the grasping member 140 has been shown and described as an inequality, the grasping member 140 may be formed in a hook-like shape, a diagonal shape, or the like.

A first rectangular hole 114 is formed in the central body 110A so as to move the main plate member 110B in the width direction of the rotary 200 on both sides of the plate member 111, A laminated reinforcing plate 115 for reinforcing the strength reduction due to the formation of the first rectangular holes 114 may be provided on the upper surface.

A cut-off groove 116 is formed at a predetermined depth from the front end of the plate 111 at the middle of the plate 111 of the main body 110B and a plate 120 is fixed to one plate 111 of the cut- And a second rectangular hole 117 is formed to allow the main body 110B to be moved forward and backward of the rotary 200. As shown in FIG. The cut-outs 116 should not be caught even when the lower link is raised and lowered when the rotary is connected to the upper and lower links (not shown) of the tractor.

The elongated body 110C has a third rectangular hole 118 formed therein so as to be movable in the front and rear directions of the rotary 200 together with the main body 110B in the middle, A fourth rectangular hole 119 is formed in the end portion of the body 111. When the bodies are assembled, the outer plate may be provided with an edge plate 109 for preventing the plate 111 from being reinforced or scattered to the side.

The bracket 121 is provided with a fastening portion 125 at the rear end and a horizontal bent portion at the front end. The bracket 121 is provided with a main body 110B And a through hole 122 through which the plate member 111 of the elongated body 110C and the second fastening member 142 can be fastened.

A screw type support 123 for preventing the bellows body 110 from being sagged and adjusting the height of the bellows body 110 is provided in the middle of the fixing table 120, The lower end of the screw is supported on the upper surface of the rotary main body 210 so that the entire height of the bushing body 110 is set.

The coupling part 125 includes a hollow member 126 mounted parallel to the rear end of the fixing table 120, a type bolt 127 having an end through which the hollow member 126 passes, And a nut 128 which is fastened to the end of the nut. The type bolt 127 is attached to the end of the type bolt 127 after the end of the type bolt 124 is wrapped around the shaft housing 221 of the gear box 220 so as to penetrate the hollow member 126 at the tip of the fixing base 120 The fixing base 120 and the type bolts 127 are fixed to the shaft housing 221 of the gear box 220 by fastening the nuts 128 respectively.

The scattering prevention member 130 is provided with a belt-like long fixing member 131 and a brush 132 is provided on the fixing member 131 in a direction perpendicular to the longitudinal direction of the fixing member 131. The brush 132 is fixed And a large amount of resin wires are arranged and bundled over the entire length of the member 131. [

The brush 132 of the scattering-preventing member 130 should be of a length and thickness suitable for a model of a rotary manufacturer and rotary. For example, the brush 132 may have a length of 190 to 230 mm and a pore diameter of 0.5 to 1 mm It is suitable. If the length of the brush 132 exceeds 230 mm, the trowel-blade 231 of the rotary 200 is touched to break or cut the brush. If the length of the bushing body 110 is long, The reason for this is that it is difficult to connect the universal joint because the distance between the rotary tractor and the tractor is small. On the other hand, if the length of the brush 132 is less than 190 mm, the bristles do not come into close contact with water or soil during the tilling operation of the rotary, which reduces the scattering prevention effect.

If the parent tooth diameter of the brush 132 is more than 1 mm, the tooth brush can not be restored if the tooth brush is broken, and there may be a problem that the mud may be scattered toward the tractor and the straw and the soil may be dragged. On the other hand, if the simulated diameter is less than 0.5 mm, there is a problem that the brush can not exhibit its function as a brush to prevent scattering of soil because it is too thin and has no force.

6, the assembled process of the soil scattering preventive device 100 for a rotary according to the present invention having the above-described structure is carried out on the front surface of the rotary main body 210 of the rotary 200 The process of mounting is briefly explained.

The assembling of the soil scattering preventive device 100 for rotary use according to the present invention can be carried out by a factory production line or by a consumer directly in the field. First, the main body 110B is connected to both sides of the central body 110A by a plurality of body connecting coupling members 143, and each of the main body 110B is extended on the outer side of the main body 110B The body 110C is connected and assembled with a plurality of body connecting members 143 and then the second rectangular hole 117 of the main body 110B and the third rectangular hole 118 of the elongated body 110C are assembled. And the scattering preventing member 130 may be mounted on the upright extending portion 112 of the plate member 111 by fastening the fixing member 120 to the rear side thereof with a plurality of second fastening members 142 respectively.

6, a gear box 220 that traverses the upper end of the rotary body 210 through a fastening part 125 at the rear end of the fixing table 120, As shown in FIG. At this time, the screw of the screw type support 123 in the middle of the fixing table 120 is supported by the upper surface of the rotary body 210 so that the shaft housing (not shown) of the gear box 220 221 is positioned so that the type bolt 127 wraps around the shaft housing 221 of the gear box 220 and its end passes through the hollow member 126, The nut 128 is tightened to complete the mounting.

In particular, the cut-out groove 116 of the main body 110B should be positioned below the upright of the lower bracket (not shown) which is the tip of the rotary 200. The reason is that the rotary 200 is connected to the lower link at the rear of the tractor, so that even if the rotary is lifted or lowered during the tilling operation or the movement of the rotary, the movement of the lower link is accepted, So as not to occur.

When the cutout-groove 116 of the main body 110B is positioned below the upright lower portion of the lower bracket on the rotary 200 side, the cutout-groove 116 of the main body 110B is moved within the range of the first rectangular holes 114 on both sides of the central body 110A And the outer end of the elongated body 110C may be moved within the range of the fourth rectangular hole 119 of the elongated body 110C at both end positions of the rotary body 210 to be aligned.

The center body 110A as the bushing body 110 and the inclined extension 123 of the main body 110B and the extension body 110C are installed in a state of being in contact with the front end of the rotary body 210, And the brush 132 of the scattering prevention member 130 is downwardly disposed in front of the tillage shaft 230 of the rotary body 210. [

The rotary R equipped with the rotary soil separator 100 of the present invention is connected to the upper and lower links at the rear of the tractor as described above and then the tractor is operated to rotate the rotary 200 The tiller shaft 230, which is transmitted from the gear box 220 via a gear train (not shown) to the gear box 220, is also rotated In addition to driving, the lower link of the tractor is operated downward to lower the depth of the ground by the depth required to tread all the answers.

In this state, as the rotary 200 is pulled by the tractor, the tiller-shaft 230 is rotated, so that the tiller-blade 231 of the tiller-shaft 230 can dig a predetermined depth of the soil, It is crushed and mostly discharged to the rear. At this time, the rear carver 240 at the rear end of the rotary main body 210 performs an operation of flat stopping while preventing soil scattered rearward by the tiller-blade 231.

At the same time, the tiller-blade 231 of the tiller shaft 230 is rotated to the rear most of the rotary body 210, but some of the tiller blade 230 is also discharged to the front of the rotary body 210. Even if the soil is discharged to the front of the rotary main body 210, the central body 110A, the main body 110B and the extending body 110C, which are the bushing body 110 of the present invention mounted on the front end of the rotary main body 210, The brush 132 of the scattering prevention member 130 is blocked and prevented from being scattered toward the rear of the tractor.

The brush 132 at the front end of the bushing body 110 is formed by bundling the resin wires and arranging them in a straight line. Since the brush 132 is free to hang downward, the brush 132 is curved in accordance with the surface shape (flat or curved shape due to the ridge and valleys) The end of the brush 132 comes into contact with the surface of the front end so that the brush 132 and the front surface are blocked without lifting. Thus, the bristles 132 reliably block the forward end of the rotary body 210, so that the rotary can be used to prevent the soil from being scattered to the front of the rotary body 210 during the tilling operation.

When the tiller operation is completed using the rotary, the lower link of the tractor is moved upward so that the tiller-blade 231 of the rotary body 210 does not touch the ground.

Fig. 7 is a perspective view showing another embodiment of the scattering prevention portion in the rotary soil scattering protection device of the present invention. Fig. In this case, the scattering prevention member 130 is formed of a flexible rubber plate material 132a such as rubber instead of the brush 132. In this case, in order to allow the lower portion of the rubber plate material 132a to act as a brush, It is preferable that the cut pieces 132b are hanged.

8 is a view showing another embodiment of the fastening part in the rotary soil separator according to the present invention. As shown in FIGS. 8 (a) and 8 (b), two coupling bodies 251 and 252 having a semicircular groove 253 are formed to surround the shaft housing 221 of the gear box 220, 252 are fixed to the rear end of the fixing table 120 and the other coupling body 252 is provided separately and the semicircular grooves 253 of the coupling bodies 251, The fastening bodies 251 and 252 are firmly attached to the shaft housing 221 of the gear box 220 by a plurality of fastening members for fastening bodies 254 so as to surround the fastening bodies 251 and 252.

FIG. 9 is a view showing another embodiment of a fixing table in a soil scattering preventer for rotary according to the present invention. Here, as shown in Figs. 9A and 9B, the fixing table 120 is divided into two first and second fixing tables 120A and 120B so that the length of the fixing table can be adjusted according to the type of rotary production machine and rotary And a plurality of through holes 124 are formed in the connecting portions of the first and second fixing tables 120A and 120B and are selectively fastened by fixing members 146 such as bolts.

According to the soil scattering prevention device having the above-described configuration, the entire length of the fixing table 120 is appropriately changed according to the type of the rotary producer and the rotary using the first and second fixing tables 120A and 120B, The body 110 can be moved and installed

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments and the accompanying drawings, and that various changes and modifications may be made by those skilled in the art have.

100: soil scattering prevention device 109:
110: bushing body 110A: central body
110B: main body 110C: elongated body
111: plate member 112: upright extension
113: inclined extension part 114: first rectangular hole
115: laminated reinforcing plate 116: cut-out groove
117: second rectangular hole 118: third rectangular hole
119: fourth rectangular hole 120:
121: Bracket 122: Through hole
123: support member 125:
126: hollow member 127: type bolt
128: nut 130: shatterproof member
131: fixing member 132: brush
140: grip member 143: fastening member for body connection
146: fastening member adjusting member

Claims (6)

A bushing body having a plate shape is provided in the front of the rotary body in the width direction. The bushing body has a central body and a main body and an elongated body on both sides thereof,
A fastening portion extending rearward from the upper surface of the main body and the extension body is provided and a fastening portion capable of being mounted on a shaft housing of a gear box traversing an upper end of the rotary body is provided at a rear end of the fastening block, The first and second fixing members are divided into two first and second fixing members so as to move the bushing body in the forward and backward directions of the rotary depending on the type of the manufacturer and the rotary, and the connecting portions of the first and second fixing members are selectively fastened through the fixing member ,
And a scattering prevention member provided at a front end of the main body and the extension body, which are the bodyshell body, the main body, and the extension body, the scattering prevention member being made of a material which is bent downwardly so as not to be lifted out by coming into contact with the front surface of the main body. The gear box according to claim 1, wherein the engaging portion includes a hollow member mounted parallel to a rear end of the fixing table, a type bolt that surrounds the shaft housing of the gear box and has an end passing through the hollow member, And a nut fastened to an end of the type bolt to fix the bolt. delete The scattering prevention member according to claim 1, characterized in that the scattering prevention member is provided with a band-shaped long fixing member and a brush that is formed by arranging a large amount of resin wires over the entire length of the fixing member in a direction orthogonal to the longitudinal direction of the fixing member Soil scattering preventer for rotary. The shatterproofing member according to claim 1, wherein the shatterproofing member is formed of a flexible rubber sheet material and is cut out to several tens of times from the middle to the bottom so that the lower part of the rubber sheet material can act as a brush, Soil scattering preventer for rotary. 2. The bodyshell according to claim 1, wherein the central body, the main body and the extension body are provided with a main body and a main body in a width direction of both sides of the central body so that the bodyshell body can be adjusted in the width direction and the length direction of the rotary, Wherein the first to fourth rectangular holes are formed in the width direction and the length direction of the elongated body and the body connecting fastening member is fastened to the first to the fourth rectangular holes of the bodies through the rotary body. Shatter Resistant.

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