KR101768823B1 - Submunition for Cluster Bomb having the Forced Arming Device for the Slider Assembly - Google Patents

Abstract

The present invention relates to a submunition for a cluster bomb having a forced slider assembly loading device, to effectively remove a misfired submunition. According to the present invention, the submunition comprises: a conical submunition body (400) having high explosives charged therein and having a conical penetrator (404) formed inside the rear end; a fuse assembly (200) including a firing pin screw (250) to explode the high explosives (403) to be coupled on the upper side of the submunition body (400); and a forced loading device (300) using the pressure of gas generated when the high explosives is ignited by thermal energy generated from the surface of a delay tube assembly (245) to forcefully move a slider assembly (240) in a loading direction to place a main detonator (290) in the lower part of the firing pin screw (250).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a submunition for clustered bomb having a slider assembly forced loading device,

[0001] The present invention relates to a charcoal mounted on a dispersed carbon (such as a cluster bomb or cluster gun) of various kinds, or a slider assembly for a new pipe of a carbon steel discharged from a mold, And more particularly, to a dispersed charcoal having a slider assembly forcible charging device which effectively removes unfavorable coals by forcibly installing a slider for normal alignment and operation of an explosion sequence when the embossing is carried out by an impact.

Generally, dispersed coal refers to a wide-area suppressed weapon that fills a large bomb within a mortar filled with dozens or even hundreds of small bombs, and then fires over the target to discharge and project the projectile over the target. .

There are various types of charcoal that can be mounted on dispersed carbon, and the representative charcoal is Dual-purpose Improved Conventional Munitions (DPICM). The Dual Purpose Improved High Bomb (DPICM) is manufactured in the form of a point-and-shoot geometry with a conical puncture. These double-purpose modified high-explosives are effective grenades for the purpose of blasting the light glove targets and destroying lives, but they are disadvantageous in that they have relatively high fire rate.

As shown in FIGS. 1 to 5, the conventional dispersed carbon charger is capable of self-exploding after a predetermined time elapses. The self- A slider 5 filled with a cyclic pipe 4 is horizontally movably provided in a housing 3 fixed through a fixing screw 6 so that the slider 5 can be moved horizontally through the fixing screw 6, The associated coupling unit 7 in which the igniter 23, the delaying agent 24 and the coupling agent 25 are sequentially charged is installed in the interior of the slider 5, And a striker 22 is provided which is adapted to strike an auxiliary pipe 12 for transmitting thermal energy to the igniter 23 of the ground-and-coupling member 7 while rotating by the generated inertial force.

Also, as shown in FIGS. 6 to 7, according to the conventional domestic patent KR10-1541592, it is possible to automatically fire the self-falling freely dropped on the ground after a predetermined time has elapsed regardless of a series of impact functions The self-assisted self-propelled self-propelled device capable of self-propelled self-propelled by actuating the striker 145 independently of whether or not the thumb screw 136 and the slider 150 are operated, That is, the slider 150, which is filled with the cycle gap pipe 115, is horizontally movably installed in the housing fixed to the upper portion of the main body through the stud, and the cycle gap pipe 115 is ignited through the small- A ground assembly 110 which is formed in a U-shape so as to increase the delay time required for self-filling and sequentially filling an igniter, a retarding agent, and a coupling agent in the receiving groove of the slider 150, An auxiliary tape assembly 120 detachably assembled to the slider 150 to restrain or release the striker 145 and an auxiliary device 120 that transmits energy to the igniter of the anchor assembly 110, And a striker assembly 140 for causing the skewer 145 and the restrained skewer 145 to awaken the assistant bellows.

The dispersed carbon charcoal is fired to the upper portion of the target in a state of being accommodated in the mold. After the mold is released from the mold when the target reaches the target, the ribbon of the fuse assembly is unfolded by the air resistance, After the restraining slider is loaded by the loading spring into the explosion series alignment position, when the magazine collides with the ground and the target, the ignition screw is fixed to the slider by the inertia action, and the connecting pipe and the high explosive gun It explodes and explodes, and carries out tasks such as destruction of light armored vehicles and killing people.

However, in the process of rapidly discharging the charcoals packed in the mold over the target, the impact can be applied to the fuse assembly of the lower jar by the jar assembled in the upper part, and in the dispersion process of the jar, Impact can be applied to the fuse assembly. In addition, when the falling collision on the ground fails to maintain the standing posture, or when the fuse assembly collides with a sloping ground or a solid rock, the fuse assembly is subjected to a large undesired impact. When these shocks are applied to the fuse assembly, the fuse is not operated due to the damage of the fuse components, or the slider assembled with the slider is not aligned, failing the final high explosive device attack, Can be.

Such a misfortune does not only reduce the firepower of the friendly forces but also cause secondary damage to civilians. Therefore, various types of self-destructive fuse tubes for eliminating unburnt carbon have been invented and applied. As a result of investigating the prior art to prevent misfortune, various techniques have been searched and some of them are as follows.

Patent Document 1 discloses a technique for automatically discharging a charcoal dropped down to the ground automatically after a lapse of a predetermined period of time, and further comprising a charging / discharging device for charging the charging / discharging device, Is formed to improve the workability and to prevent the accidental accident by blocking the penetration of moisture through the side or inlet of the slider and the slipper.

Patent Document 2 discloses a technique in which strikers are independently operated regardless of whether or not sunken screws and sliders are operated, so that the free fall-off charcoal can be automatically exploded after a predetermined time regardless of a series of impact functions, A self-contained self-destruct device of self-destruction capable of self-destructing a self-propelled explosion by exploding a hood was described. That is, the slider is fixed to the upper portion of the main body through a stud, and a slider filled with a cyclic pipe is horizontally movably installed inside the housing. An auxiliary assembly of tape and an auxiliary tape assembly detachably assembled to the slider so that the striker and the stapler may be constrained or released in a U shape to sequentially charge the igniter, And a self-assisted self-propelled device that includes a striker assembly that forces the striker to deliver energy to an igniter of the associated assembly, and a unscrambled skriper to awaken the auxiliary bell.

However, in such a case as well, the following problems may result in generation of unfavorable coals.

That is, in the above-mentioned patent documents, even if the impact function of the jatan fuse is lost due to the addition of the self-destruct fuse and the improvement of the self-destruct fuse, However, even if the self-deflating function is in normal operation (normal operation of the ancillary tube and the pile-up assembly), the explosion series is in an unaligned state, The high-explosive charge charged in the main body can not be attacked, and eventually the unexploded ordinance (UXO) will be generated.

Accordingly, in order to prevent the misfire, the slider assembly of the new pipe is required to have a structure of a jacket capable of perfectly protecting the loading function of the new pipe until the self-destructing fuse operates, When the slider is troweled due to the damage of the self-destructing fuse from the external impact after discharge, the slider assembly is forcibly loaded so that the fuse of the fuse is aligned and ultimately the gun can be disassembled. It is true that

KR 10-0306357 B1 KR 10-1541592 B1

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the prior art described above and to provide a slider assembly for a new tube of carbon steel released from a mold, It is an object of the present invention to provide a dispersed charcoal having a slider assembly forcible charging device capable of forcibly charging a slider assembly for operation so as to effectively remove uncharged carbon.

To achieve the above object, according to the present invention, there is provided a cigarette lighter comprising: a cylindrical pyrotechnic body filled with a high explosive therein and having a conical penetrator inside the rear end; And a new pipe assembly (200) having an ignition screw for detonating the high explosive powder (103) and coupled to the upper side of the granite body, the granule assembly comprising: a housing A ribbon assembly installed on the upper portion of the thumbscrew, and a belt assembly installed on the upper portion of the housing to restrain the thumbscrew so as to prevent the thumbscrew from being detached, and to vertically lower the thumbscrew using the self- And a slider assembly horizontally movably installed in the housing, the slider assembly being installed in the slider assembly, wherein the slider assembly is installed in the slider assembly, When the restraint by the thumbscrew is released by the thumb screw, A slider cap which is formed in a 'U' shape and is inserted into the receiving groove of the slider, a slider stopper which closes the opening of the slider, and a slider stopper which contacts the one end of the pinion assembly An auxiliary tape assembly assembled to the slider, a striker rotatably installed on the slider to detach the auxiliary pipe, and an auxiliary tape assembly installed on the slider to restrain the striker from rotating, The slider assembly is forcibly moved in a loading direction by using a gas pressure generated by ignition of a gunpowder by thermal energy generated on the surface of the slider assembly, .

According to the dispersion charcoal having the slider assembly forcible charging apparatus of the present invention, the forced charging apparatus is provided with an igniter filling the small diameter portion of the filling hole penetrating the slider stopper to contact the outer surface of the pinion assembly and And a pressure supporting plug coupled to the large diameter portion of the charging hole to prevent leakage of the propellant and leakage of the gas pressure.

In addition, according to the dispersed charcoal having the slider assembly forced loading apparatus of the present invention, when the ground association assembly is ignited before being loaded on the mortar, the gas pressure generated by the forced loading apparatus is discharged to the outside, And a gas pressure releasing hole is formed in the gas pressure releasing hole.

According to the dispersed charcoal having the slider assembly forcibly loaded apparatus of the present invention, the forced charging apparatus is fastened to the gas pressure releasing hole so that the tip end thereof is positioned at the end of the filling hole, Further comprising a screw cap for pressure holding to prevent the gas pressure from being released and preventing the gas pressure from leaking.

In addition, according to the dispersed charcoal having the slider assembly forced loading apparatus of the present invention, the screw cap for pressure support is fastened to the gas pressure release hole immediately before final assembly of the charcoal into the mortar.

According to the distributed carbon charger provided with the slider assembly forcibly loaded apparatus of the present invention, the slider is provided with a restricting groove for restricting the slider by inserting the tip of the thumb screw on the upper side of the slider, The fixing holes and the loading holes are connected to the notch grooves so as not to interfere with the tips of the fixing screws during the horizontal movement of the slider assembly .

In addition, according to the dispersed charcoal having the slider assembly forced loading apparatus of the present invention, the loading hole includes a lower small-diameter portion formed so as to penetrate the upper surface of the cyclic pipe so as to be exposed, Diameter portion having a larger diameter than that of the large-diameter portion.

The dispersed carbon charger provided with the slider assembly forcible charging apparatus of the present invention is characterized in that when the slider assembly for a new pipe of the discharged carbon black is fitted with a slider assembly due to an external environment, The slider assembly is moved in accordance with the sequence of the explosion sequence, thereby effectively removing the dust.

In addition, according to the dispersed charcoal having the slider assembly forced loading apparatus of the present invention, since the gas pressure releasing hole is formed in the housing, the gas pressure is released to the outside of the housing, It is not loaded, so that explosion-type alignment and high-explosive ignition can not be performed, and safety during the manufacturing process is secured

1 is a perspective view showing a free fall state of a general cast iron equipped with a self-propelled device.
FIG. 2 is a longitudinal sectional view of a conventional self-propelled jar after the slider is operated. FIG.
3 is a longitudinal cross-sectional view of a jig related assembly of jar with a conventional self-propelled device.
Fig. 4 is a longitudinal sectional view showing a conventional self-expanding apparatus. Fig.
5 is a cross-sectional view taken along line cc of Fig.
6 is an exploded perspective view of a self-contained self-propelled device provided in a conventional carbon.
7 is an exploded perspective view of a conventional slider assembly of a self-contained self-propelled device equipped with a magnet.
8 is a vertical cross-sectional view of a conventional self-propelled self-contained propellant.
9 is a cross-sectional view taken along line DD of Fig.
10 is a perspective view showing a free fall state of a coarse coal with a conventional self-destructing apparatus.
11 is a perspective view showing a free fall state of the cigarette according to the present invention.
12 is a longitudinal cross-sectional view of a carbon according to the present invention in a pre-discharge mode.
13 is a sectional view taken along the line EE of Fig. 12
14 is an enlarged view of a portion "A" in FIG.
FIG. 15 is a three-dimensional view showing a state before and after assembling a forced charging apparatus into a filling hole of a magnet slider according to the present invention. FIG.
16 is a sectional view of a magnet assembly slider assembly according to the present invention.
17 is a cross-sectional view of a fuselage at an early stage of operation of a self-contained self-propelled device in a pre-coating condition of a magnet slider according to the present invention.
18 is a cross-sectional view of the fuse of the charger slider assembly according to the present invention at the moment of igniting the ignition powder of the mandrel charging device.
Fig. 19 is a cross-sectional view of a fusing device according to the present invention when the slider assembly is forcibly loaded in a loading direction; Fig.
20 is a vertical cross-sectional view of a magazine for explaining a forced loading sequence of the magnetron slider assembly according to the present invention;
FIG. 21 is a plan view showing a stereoscopic view of a slider forced charging pretreatment screw restricting groove, a restricting groove side wall, and a movable notch groove according to the present invention and an upper part of the slider in the condition.
Fig. 22 is a plan view showing the stereoscopic view of the thumbscrew and the upper part of the slider in the condition, when the sidewall of the restraining groove after the slider forced warming according to the present invention is sheared and moved through the restricting groove and the notch groove;
23 is a three-dimensional view of a fuse tube for explaining a gas pressure release hole and a screw cap for pressure support in a cigarette housing according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

As shown in FIGS. 11 to 23, the dispersed carbon charger provided with the slider assembly forcible charging apparatus according to the present invention has a cylinder 403 filled with a high explosive powder 403 and a conical penetrator 404 installed inside the rear end thereof. Shaped charging body (400); And a fuse assembly (200) having a firing pin (250) for detonating the high explosive powder (403) and coupled to the upper side of the firing body (400).

The fuse assembly 200 includes a housing 230 fixed to the upper portion of the magenta body 400 by a stud 270 and having a new pipe bottom plate 260 at a lower portion thereof, A ribbon assembly 210 which is installed in a folded state and a fixing part 250 which is provided on the upper part of the housing 230 and restrains the fixing screw 250 so as to prevent the fixing screw 250 from being detached, A cycle tube 290 which is detonated by the declashing screw 250 to detonate the high explosive powder 403 of the magenta body 400 and a cycle tube 290 which is detonated by the declashing screw 250, And a slider assembly 240 horizontally movably mounted on the slider.

The slider assembly 240 is moved to the loading position by the slider spring when the cyclic pipe 290 is installed and restrained by the thumb screw 250 and released by the thumb screw 250 A ground assembly 245 formed in a U shape and inserted into the receiving groove of the slider 241 and a slider stopper 246 for blocking the opening of the slider 241, An auxiliary pipe bushing 244 assembled to the slider 241 to abut one end of the grounding assembly 245 and an auxiliary pipe bushing 244 rotatably installed on the slider 241 to detach the auxiliary pipe bushing 244 An auxiliary tape assembly 243 mounted on the slider 241 and restraining the striker 242 from rotating; and an auxiliary tape assembly 243 mounted on the slider 241, Ignited foot And a forced loading device 300 for forcibly moving the slider 241 in the loading direction by using the generated gas pressure so that the cyclic pipe 290 is positioned below the thumb screw 250.

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Under normal conditions, the tape assembly 210 is deployed by the air resistance after the charcoal is released from the mold, and the thumb screw 250 is raised and rotated so that the slider assembly 240, which has been constrained by the thumb screw 250, It is moved in the loading direction by the spring, and the cycle tube 290 is positioned below the thumb screw 250, thereby changing to the loaded state. Then, when collision with the ground, the declutch screw 250 is lowered together with the inertial weight 220 by the inertia, and the cyclic pipe 290 is detonated. Then, the cyclic pipe 290 explodes the connection pipe 280, and ultimately the high-carbon dioxide 403 explodes.

However, even if the slider assembly 240 is normally loaded, the declamping screw 250 may not be able to ignite the cycle tube 290 for a variety of reasons. In this case, the self- The high explosive 403 is exploded. That is, the auxiliary gap tube 244 provided in the slider assembly 240 is excited to the cycle gap 290. That is, the auxiliary tape assembly 243 is separated by the air resistance so that the striker 242 can be operated, and the auxiliary pipe bore 244 and the grounding assembly 245 are sequentially operated by the striker 242 . Then, the periodic pipe 290 is aroused by the ground association assembly 245, and finally, the self-expanding force is generated by igniting the high explosive 403 of the granite body 400.

However, when the slider 241 can not be normally loaded in the above-described operating mechanism, both the shock function and the self-deflating function can not be operated, and therefore, the unintentional sparkling can not be produced. In this case, the forced loading device 300 is operated to move the slider 241 to a normal loading position so that the explosion sequence is normally aligned.

The force charging device 300 includes an igniter 320 filled in the small diameter portion 311 of the charging hole 310 formed in the slider stopper 246 so as to contact the outer surface of the pin assembly 245, And a pressure supporting plug 340 coupled to the large diameter portion 312 of the charging hole 310 to prevent leakage of the propellant 330 and leakage of gas pressure. When the ground association assembly 245 is ignited during the manufacturing process of the jar, the gas pressure release hole 235 is formed in the housing 230 so that the gas pressure generated by the forced loading device 300 can be discharged to the outside. Is preferably formed. The pressure supporting plug 340 is engaged with the slider stopper 340 by inserting the screw retainer 350 for the pressure support into the gas pressure releasing hole 235 so that the tip end thereof is positioned at the end of the filling hole 310 246 and prevents the gas pressure from leaking.

The auxiliary tape assembly 243 is disengaged to operate the striker 242 and the auxiliary tube 244 is operated by the striker 242 in the state before the unfolding of the slider assembly 240, The gunpowder burns. At this time, the igniter 320 filled in the charging hole 310 of the slider stopper 246 is ignited by the high-temperature heat generated as the gunpowder of the pinion assembly 245 is burned, . The pressure supporting plug 340 is pushed out of the slider stopper 246 due to the pressure of the combustion gas generated by the combustion of the propellant 330. However, the pressure supporting screw cap 340 The pressure of the combustion gas acts on the slider assembly 240 to move in the loading direction.

The upper side of the slider 241 is provided with a restricting groove 247 through which the tip of the thumbscrew 250 is inserted to restrain the slider 241, The slider assembly 240 is formed at a position spaced apart from the loading hole 248 by a predetermined distance so that interference between the slider assembly 240 and the thumb screw 250 can be prevented. (247) and the charging holes (248) are connected to the notch grooves (249). The loading hole 248 has a lower small diameter portion 248a formed so as to expose the upper surface of the cycle pipe 290 and a lower small diameter portion 248a which is larger than the small diameter portion 248a And an upper large-diameter portion 248b having a large diameter.

When the slider assembly 240 is in the untreated state, the thumb screw 250 restrains the slider 241. That is, the tip portion of the thumb screw 250 is inserted into the restricting groove 247 of the slider 241, thereby preventing the slider assembly 240 from moving. The slider assembly 240 is moved in the loading direction by the combustion gas pressure formed in the filling hole 310 of the slider stopper 246. At this time, The protruding end of the slider 241 comes to the loading hole 248 through the notch groove 249 while shearing one side of the slider 241.

When the thumb screw 250 reaches the loading hole 248, the weight of the inertial weight 220 is lowered from the large diameter portion 248a to the small diameter portion 248b to pressurize the cycle trench 290. Thus, the high explosive 403 of the jelly body 400 connected to the connection pipe 280 is blown to the cycle pipe 290. Also, if the delay time of detonation by the ground association assembly 245 is long enough and the jar does not detonate due to pre-tearing of the slider assembly 240 after being hit on the ground, the forceful loading device 300 is operated and the slider assembly 240 are moved to the normal loading position and the high explosive powder 403 of the charging body 400 connected to the cycle pipe 290 and the connection pipe by the operation of the grounding assembly 245 explodes.

Meanwhile, it is preferable that the screw cap 350 for pressure support is fastened to the gas pressure release hole 235 immediately before final assembly of the charcoal into the mold. When the ground assembly 245 is operated unintentionally in the process of manufacturing the magazine, the charged powder filled in the charging hole 310 of the slider stopper 246 is ignited to force the slider 241 to be charged, The screw retainer 350 for the pressure support of the housing 230 facing the pressure retainer 340 is removed during manufacturing to ensure safety during the manufacturing process. That is, even if the propellant powder 330 of the slider stopper 246 is ignited by securing the passage for pressure release, the gas pressure for loading the slider assembly 240 can not be formed, thereby preventing the slider assembly 240 from being loaded . Of course, it is natural to seal by tightening the screw cap 350 for pressure-supporting before finally assembling the magnet to the mold.

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, but, on the contrary, Those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

200 ... bout assembly
210 ... tape assembly
220 ... Inertia Chu
230 ... housing
235 ... gas pressure release hole
240 ... slider assembly
241 ... slider
242 ... striker
243 ... auxiliary tape assembly
...
245 ... ground assembly
246 ... slider stopper
247 ... restraint groove
247a ... restraining groove side wall
248 ... loading hall
248a ... large neck
248b ... small neck
249 ... Notch home
250 ... thumbscrew
260 ... New pipe base plate
270 ... Stud
280 ... connector
290 ... cycle tube
300 ... forced loading device
310 ... charging hole
320 ... Ignitant
330 ... propellant powder
340 ... pressure support plug
350 ... Screw cap for pressure support
400 ... jelly body
403 ... high explosives
404 ... penetrator

Claims (7)

A cylindrical magenta body 400 having a high explosive charge 403 filled therein and a conical penetrator 404 installed at the rear end inside; And a fuse assembly (200) having a decanting screw (250) for detonating the high explosive powder (403) and coupled to the upper side of the magnet body (400)
The fuse assembly 200 includes a housing 230 fixed to an upper portion of a magic body 400, a ribbon assembly 210 installed in a folded state at an upper portion of the fuser screw 250, An inertia weight 220 vertically lowering the ignition screw 250 using its own weight when the ignition screw 250 is restrained so that the ignition screw 250 is not separated from the ignition screw 250, And a slider assembly 240 horizontally movably installed in the housing 230. The slider assembly 240 includes a plurality of slider assemblies 240,
The slider assembly 240 includes a slider assembly 250 having the periodic tube 290 installed therein and being constrained by a thumb screw 250 and moved to a loading position by a slider spring when the thumb screw 250 is released, And a slider stopper 246 for blocking an opening of the slider 241. The slider stopper 246 is inserted into the receiving groove of the slider 241, An auxiliary pipe bore 244 assembled to the slider 241 to abut one end of the grounding assembly 245 and a striker 244 rotatably installed on the slider 241 to detach the auxiliary pipe bore 244 And an auxiliary tape assembly 243 installed on the slider 241 to restrain the striker 242 from rotating,
The slider assembly 240 is forcibly moved in the loading direction by using the gas pressure generated by the ignition of the gunpowder due to the thermal energy generated from the surface of the ground association assembly 245, The present invention relates to a self-propelled charging device for a charged charcoal having a slider assembly forced loading device. The method according to claim 1,
The force charging device 300 includes an igniter 320 filled in the small diameter portion 311 of the charging hole 310 formed in the slider stopper 246 so as to contact the outer surface of the pin assembly 245, And a pressure supporting plug 340 coupled to the large diameter portion 312 of the charging hole 310 to prevent leakage of the propellant 330 and leakage of gas pressure, Characterized in that it comprises a slider assembly forced loading device. 3. The method of claim 2,
A gas pressure releasing hole 235 is formed in the housing 230 so that the gas pressure generated by the forced charging apparatus 300 can be discharged to the outside when the ground association assembly 245 is ignited before being loaded in the mold Wherein the slider is provided with a slider. The method of claim 3,
The force applying apparatus 300 is fastened to the gas pressure releasing hole 235 such that the tip end thereof is positioned at the end of the charging hole 310 so that the pressure supporting plug 340 is detached from the slider stopper 246 , And a screw cap (350) for pressure holding to prevent the gas pressure from leaking. 5. The method of claim 4,
And the pressure-supporting screw cap (350) is fastened to the gas pressure-releasing hole (235) immediately before final assembly of the charcoal into the mold. 6. The method according to any one of claims 1 to 5,
A restraining groove 247 for allowing the tip of the thumb screw 250 to be inserted into the upper side of the slider 241 so that the slider is restrained and a fastening groove 247 for fastening the thumb screw 250 when the slider 241 is in the loading position Holes 248 are formed at positions spaced apart from each other by a predetermined distance so that the constraining grooves 247 and the loading holes 247 are formed so as not to interfere with the tips of the thumb screws 250 during the horizontal movement of the slider assembly 240. [ And the hole (248) is connected to the notch groove (249). The method according to claim 6,
The loading hole 248 has a lower small diameter portion 248a formed to penetrate the upper surface of the cycle pipe 290 and a lower diameter portion 248a larger in diameter than the small diameter portion 248a And a large-diameter portion (248b) on the upper side having the slider assembly forced loading device.

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