KR101614939B1 - Detachable wire connecting device - Google Patents

Abstract

The present invention relates to a connecting device for coupling a first member and a second member which have wires, respectively. The present invention provides a detachable wire connecting device configured to include: coupling blocks disposed in the first member and the second member to face each other, provided with sliders on surfaces facing each other, and allowing detachable coupling between the first member and the second member via the sliders; a wire block disposed to be slidable through a tunnel provided at the centers of the coupling blocks and connecting each pair of wires to the first member and the second member; and a separation lever provided on one surface of the first member or the second member to release a coupling state by pressing the coupling block of the second member or the first member in a direction facing the coupling through rotation. According to the present invention, two separable members of an endoscope or a catheter, that is, an insertion portion as the first member and a main body as the second member, for example, can be connected in a separable manner for convenience of use. In addition, the connecting device can have a variety of applications.

Description

TECHNICAL FIELD [0001] The present invention relates to a detachable wire connecting device,

The present invention relates to a detachable wire fastening apparatus, and more particularly, to a fastening apparatus for fastening a first member and a second member each having a wire, the fastening apparatus comprising: Two engagement members provided on the two members so that the first member and the second member are detachably coupled through the upper and lower slide engagement; A wire block slidably installed through a tunnel provided at the center of the coupling block to couple a pair of wires to each of the first member and the second member; And a separating lever provided on one surface of the first member or the second member and releasing the engagement state by pressing the engagement block of the second member or the first member in a direction opposite to the engagement through rotation, And a detachable wire fastening device.

Endoscopic use is a medical instrument used to examine the affected part or to facilitate access to the affected part during the procedure. The catheter is used for the discharge of the body fluid in the body cavity or various organs, the aspiration of the perfusion fluid for cleaning, And the like.

Endoscopy is not only extremely effective in making lumpectomy and diagnosis of diseases, but it is also used as an instrument for endoscopy, including esophageal diverticulum, certain benign tumors, esophagus, stomach, duodenum and large intestine, In addition to treatment of early tumors and hemorrhagic ulcers in varicose veins, removal of various stones and treatment of chronic pancreatitis are possible, and the range of treatments is gradually expanding through technology development.

In addition, catheters are being sought for diversity in terms of endoscopy and its use, and its importance is gradually increasing.

However, endoscopes must be disinfected for a long period of time after being used in specific patients and reused in a certain patient. If the endoscope is reused in a third party without adequate sterilization, infection of various diseases and germs may be caused. This is also the case for catheters.

Therefore, in order to solve the above-mentioned problem, the prior art No. 0673412 discloses a medical endoscope having an insertion portion that can be easily attached and detached.

Such a conventional endoscope is characterized in that the medical endoscope comprises: an operation unit incorporating an operation unit illumination guide, an operation unit image guide, and a plurality of operation unit channels; An insertion portion having a plurality of connectors each having an insertion portion illumination guide, an insertion portion image guide, and a plurality of insertion portion conduits, the insertion portion illumination guide, the insertion portion image guide, and the insertion portion conduit, respectively; A connecting portion having one end connected to the operation portion and the other end configured to be detachable from the insertion portion by forming a plurality of connection ports for connecting the operation portion illumination guide, the operation portion image guide, and the operation portion conduit to the corresponding connectors, respectively; And a light source unit that is provided between the insertion portion image guide and the operation unit image guide connected in the connection port and includes an imaging unit for imaging an image transmitted from the insertion unit image guide and connected to the operation unit to generate illumination light, And it is an object of the present invention to provide a medical endoscope having improved safety because the insertion portion inserted into the body cavity of a human body is contaminated or a functional abnormality is generated and can be separated and replaced easily.

However, in the conventional endoscope, since the connection between the insertion portion and the operation portion is only disclosed for the illumination and the image transmission, the insertion portion may not be easily accessible to the foreign part because there is no description about the curvature control for the insertion portion.

That is, the endoscope should be able to flex freely so as to facilitate access to the affected part, wherein the curvature control is performed through the operating part, and is usually controlled through traction and restoration of a pair of wires. Therefore, the insertion portion and the manipulation portion must be interconnected via a wire or an alternative means corresponding to the wire, but the conventional endoscope can not be controlled in curvature freely with respect to the inserting portion since the technique is excluded.

As described above, since the endoscope or the catheter is configured such that the insertion portion is detachable from the operation portion, the endoscope or the catheter plays an important role in maintaining the continuity of examination (or treatment) due to partial replacement as well as hygiene and hepatitis, Although there is an advantage to be able to perform the flexion control of the insertion part, it is urgent to develop a new technique to improve the accessibility to the affected part and to develop the technique of the flexion control for the insertion part so as to facilitate the accurate diagnosis and the procedure.

For this purpose, the coupling structure of the inserting portion and the manipulating portion, which are detachably configured, should be implemented, and further, it is required to be detachable so that convenience in use and applicability to various applications can be derived.

Patent No. 10-0673412

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an endoscopic or catheter- Which are connected to each other, so as to be mutually separable.

Another object of the present invention is to provide an insertion portion as a first member such as an endoscope or a catheter having a high frequency of exposure to bacteria and being detachable from the main body as the second member so that partial washing and disinfection and partial disposal are possible, The present invention is to propose a detachable wire fastening device that can be partially discarded as well as an accident so as to improve the economical efficiency.

It is a further object of the present invention to provide a wire harness in which wire of a main body as a first member and a wire of a main body as a second member are connected to each other through a wire block so as to be able to be connected and removed, The present invention is to provide a detachable wire fastening apparatus which is operable to improve accessibility to a wire.

According to an aspect of the present invention, there is provided a fastening device for fastening a first member and a second member, each of which is provided with a wire, wherein the fastening device includes a first member and a second member, A slider is provided on each of the surfaces facing each other, and a coupling block for detachably coupling the first member and the second member through the slider; A wire block slidably installed through a tunnel provided at the center of the coupling block to couple a pair of wires to each of the first member and the second member; And a separating lever provided on one surface of the first member or the second member and releasing the engagement state by pressing the engagement block of the second member or the first member in a direction opposite to the engagement through rotation, And a detachable wire fastening device.

The coupling block includes: a first coupling block installed on the first member or the second member; And a second joint block installed on the second member or the first member.

The first coupling block includes a first bracket fixed to the first member or the second member and having a first tunnel formed at the center thereof; And a pair of first sliders vertically installed in the central area of the first bracket through fastening screws, the pair of first sliders being installed at the upper and lower sides of the first tunnel, respectively.

It is preferable that the first slider has a width different from that of the first bracket and a width of the first bracket, and the first slider extends toward the back surface.

It is preferable that the first slider has a slope between the one surface and the back surface or a multi-stepped shape, and the width of the first slider widens toward the back surface.

The second coupling block includes a second bracket fixed to the second member or the first member and having a second tunnel formed at the center thereof; And a pair of second sliders provided on the left and right sides of the second bracket, respectively, with fastening screws around the second tunnel, wherein the second slider has a structure corresponding to the first slider , And a coupling structure capable of sliding up and down.

The wire block includes a first wire block to which an end of the first wire is connected; And a second wire block to which the end of the second wire is connected, wherein the first wire block and the second wire block have the same coupling structure as the first slider and the second slider, It is preferable that they are slidably coupled in an up / down direction.

A protrusion is formed on one surface of the first wire block or the second wire block facing each other and a groove corresponding to the protrusion is formed on the other wire block and the first bracket or the second bracket, It is preferable that the coupled state is maintained.

Wherein the first wire block and the second wire block are constituted by a first member block connected to one of the wires and a second member block connected to another wire, A connection groove to which the ends of the wire are connected is formed, and an end of the wire is connected to the connection groove in a ring shape.

The first member and the second member are further provided with engaging means at each end facing each other, and reinforce the engagement of the first member and the second member.

It is preferable that the coupling means is any one of a coupling by a fitting in which the first member or a part of the second member are mutually overlapped, or a coupling or a pin coupling.

According to the present invention as described above, two detachable members such as an endoscope or a catheter, that is, for example, an insertion portion as a first member and a main body as a second member are detachably fastened to each other to provide ease of use, It is expected that the effect can be pursued.

Another object of the present invention is to provide an insertion portion as a first member such as an endoscope or a catheter having a high frequency of exposure to bacteria and being detachable from the main body as the second member so that partial washing and disinfection and partial disposal are possible, It is anticipated that it will be possible to partially discard not only accidents but also to improve economic efficiency.

It is a further object of the present invention to provide a wire harness in which wire of a main body as a first member and a wire of a main body as a second member are connected to each other through a wire block so as to be able to be connected and removed, It is anticipated that the effect of improving the accessibility to the user can be improved.

Particularly, the present invention realizes the possibility of attaching / detaching between the wires by constructing the fastening device in a special structure.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a whole view showing a state in which an insertion portion as a first member and a body as a second member are engaged using a fastening device according to a preferred embodiment of the present invention; Fig.
FIG. 2 is a perspective view showing a state in which the insertion unit as the first member and the body as the second member are separated from each other by releasing the fastening device according to the preferred embodiment of the present invention,
3 is a detailed view for explaining a fastening apparatus according to a preferred embodiment of the present invention,
4 is a detailed view for explaining a stopper according to a preferred embodiment of the present invention,
5 is a perspective view illustrating a first coupling block according to a preferred embodiment of the present invention.
6 is a perspective view illustrating a second coupling block according to a preferred embodiment of the present invention.
7 is a detailed view for explaining a first wire block according to a preferred embodiment of the present invention,
8 is a detailed view illustrating a second wire block according to a preferred embodiment of the present invention,
FIG. 9 is a detailed view for explaining an installation state of a wire according to a preferred embodiment of the present invention,
10 is a detailed view for explaining a traction state of a wire block according to a preferred embodiment of the present invention,
11 is a detailed view for explaining a separating means according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the present invention, the defined terms are defined in consideration of the function of the present invention, and it can be changed according to the intention or custom of the technician working in the field, and the definition is based on the contents throughout this specification It should be reduced.

Although the fastening device of the present invention is designed to be usable for both a catheter and an endoscope, it can be applied to various fields for making detachable fastening parts of the technique, and is not limited to a particular field. That is, the insertion device of the present invention should not be construed as being applied only to a catheter and an endoscope. Herein, the catheter and the endoscope are described as an example in which the fastening device of the present invention is applied. Particularly, in the following description, the present fastening device is applied to an endoscope in order to avoid duplication of explanation between the catheter and the endoscope.

The present invention relates to a detachable fastening device provided on a first member and a second member, each having a wire and provided so as to be mutually engaged and disengaged when necessary.

Here, the first member and the second member can be designated to the insertion portion and the main body, respectively, as will be described later in the separable endoscope device or the detachable catheter device. In addition, although the endoscope and the catheter may be the main examples of the device having such an insertion portion and the main body, the scope of the application is not limited to this, and the application range in which the connection and disengagement of the wires other than the endoscope and the catheter are required Can be set.

Hereinafter, an endoscope will be described as an embodiment, and the first member and the second member are respectively replaced by an insertion portion (main body) and a main body (insertion portion).

FIG. 1 is an overall view showing a state in which an inserting portion as a first member and a main body as a second member are coupled using a fastening device according to a preferred embodiment of the present invention. FIG. 2 is a cross- FIG. 3 is a detailed view for explaining a fastening apparatus according to a preferred embodiment of the present invention. FIG. 3 is a detailed view for explaining a fastening apparatus according to a preferred embodiment of the present invention.

As shown in the drawing, the endoscope equipped with the inserting device according to the present invention includes an insertion portion 20 provided with a tube 21 inserted into a body, a body 30 provided with a lever 31 for controlling the bending of the tube 21 And a fastening device 100 for separating the insertion portion 20 and the main body 30 from each other.

The fastening device 100 may further include a coupling means 180 for reinforcing the coupling between the insertion portion 20 and the main body 30. The coupling means 180 may be inserted The first engaging means 181-1 provided at the end of the main body 20 and the second engaging means 180-2 provided at the main body 30 use the joining method of the male. Or a part of the main body 30 are mutually superimposed, or a screw coupling or a pin coupling is selected, which is a typical coupling method and a description thereof will be omitted.

The insertion portion 20 is provided with a tube 21 inserted into the body, and the tube 21 is provided with a plurality of through holes in the longitudinal direction thereof.

As shown in the figure, the through hole includes a photographing portion 23 into which an image transmitting medium is inserted, a pulling portion 25 into which the wires 159 and 167 are inserted, and a treatment portion 27 into which a drug or a surgical tool is inserted. This is a conventional structure and a detailed description thereof will be omitted.

The main body 30 is provided with a lever 31 for controlling the bending of the tube 21, and constituent elements provided in the endoscope such as other image transferring and illumination are constituted together.

The insertion portion 20 and the main body 30 are detachably coupled to the fastening device 100. The insertion portion 20 is detached from the main body according to the degree of contamination and disinfected or discarded or replaced to maintain continuity of the use of the endoscope .

That is, the insertion portion 20 is a region in which frequent contact with body manipulation occurs, and particularly, it is necessary to pay attention to bacterial infection. If the sterilization and disinfection is insufficient, the insertion part 20 must be detachable from the main body 30 because a medical accident that a third person is infected may occur, 100 to be detachably coupled to the main body 30.

The fastening device 100 is provided with a coupling block 110 installed to the insertion portion 20 and the main body 30 so as to detachably couple the insertion portion 20 and the main body 30 through the up / A pair of wires are connected to the inserting portion 20 and the main body 30 so as to be slidable through the tunnels (the first tunnel 123 and the second tunnel 135) provided at the center of the coupling block 110, And the insertion block 20 and the coupling block 110 are pressed in a direction opposite to the coupling so as to release the coupling state between the insertion block 20 and the main body 30, (Not shown).

The coupling block 110 includes a first coupling block 120 installed at the insertion portion 20 and a second coupling block 130 installed at the main body 30. [

5, a first bracket 121 having a first tunnel 123 formed at the center thereof, a first bracket 121 having a first tunnel 123 formed at the center thereof, And a pair of first sliders 125 vertically installed on the central region of the first tunnel 123 via fastening screws 190 and installed on the upper and lower sides of the first tunnel 123, respectively. 5A is a sectional view of the first coupling block 120, and FIG. 5B is a bottom view thereof.

The first bracket 121 preferably has a shape corresponding to the installation surface of the insertion portion 20, and is preferably a circular plate as shown in FIG.

The first slider 125 may be sloped as shown in FIG. 4A between the one surface and the back surface, or alternatively may be formed in the form of a multi-stepped step or a fine-grained bone and protrusion as shown in FIG. 4B. In particular, the present invention is not limited to the illustrated form, and is intended only for preventing the engagement blocks 110 from being separated from each other in the directions other than the upper and lower directions.

6, a second bracket 131 having a second tunnel 135 formed at the center thereof and a second bracket 131 having a second tunnel 135 And a pair of second sliders 137 installed on the left and right sides of the second bracket 131 via fastening screws 180 around the second slider 137. The second slider 137 includes a first slider 125 As shown in the figure, the first slider 125 and the second slider 125 have the shape of a slope, a multi-step step, / Downward slidable engagement structure. Here, FIG. 6A shows the separation of the first coupling block with reference to one side, and FIG.

The wire block 140 serves to enable the tube 21 to operate in conjunction with the lever 31 of FIG. 1, and particularly to facilitate the control of bending to improve accessibility to the affected part, So that the success rate can be improved.

The wire block 140 includes a first wire block 150 to which the end of the first wire 159 is connected and a second wire block 160 to which the end of the second wire 167 is connected, The first wire block 150 and the second wire block 160 have the same coupling structure as that of the first slider 125 and the second slider 137, Slide coupling is possible.

The first wire block 150 is slidably coupled through a first tunnel 123 provided in the first bracket 121 as shown in the separating diagram of the first coupling block 120 of FIG. 5 and the detail of FIG. 7, At this time, an insertion protrusion 157 formed to protrude from the second wire block 160 is formed on one surface of the second wire block 160 so as to restrict the connection with the second wire block 160, Will be described later. Here, FIG. 7A is a perspective view and a front view showing one side of the first wire block, and FIG. 7B is a perspective view and a rear view of the back side of the first wire block.

The first wire block 150 is present in a pair of the first insertion block 151 and the second insertion block 153 so as to correspond to each of the first wires 159, And the insertion portion second block 153 are preferably symmetrical with respect to each other.

The second wire block 160 is slidably coupled through a second tunnel 135 provided in the second bracket 131 as shown in FIGS.

6 is a sectional view for explaining the second coupling block 130, and FIG. 8 is a detailed view for explaining the second wire block 160, which will be described in detail below with reference to the drawings. 8A is a perspective view and a front view of the second coupling block 130, and FIG. 8B is a rear perspective view and a rear view of the second coupling block 130, respectively.

The second wire block 160 is formed with a second groove 165 corresponding to the insertion portion protrusion 157 on one surface of the second wire block 160 which is slidably engaged with the first wire block 150, 6, the second bracket 131 is extended from the second bracket 131 to the second wire block 160.

4, the second groove 165 is further formed in the second bracket 131 so that the insertion protrusion 157 can enter the second groove 165 when the first wire block 150 is slidably engaged with the first wire block 150. At this time, The groove formed in the second bracket 131 exists as the first groove 133.

Thus, when the fastening device 100 is slidably coupled up and down, the projections are coupled along the grooves (first grooves 133, second grooves 165), and finally, as shown in FIG. 4C The insertion portion protrusion 157 is engaged with and restricted by the groove.

The first wire block 150 and the second wire block 160 are connected to the first wire 159 and the second wire 167 so that the first wire block 150 and the second wire block 160 can be fixedly connected to the first wire 159 and the second wire 167, Second connection groove 169), which will be described with reference to FIG. 9, with reference to FIGS. 1 to 8.

FIG. 9 is a detailed view for explaining an installation state of a wire according to a preferred embodiment of the present invention, and is a view showing a perspective view and a front view based on a front view.

First, the fixing of the wires 159 and 169 is performed by fixing the first wire block 150 and the second wire block 160 shown in FIGS. 7 and 8 in the same process and form, 150 by connecting the first wire 159 to the first wire 159.

9A, the first wire 159 is inserted into the first connection groove 155 formed in the first wire block 150, and the end is bent in the shape of an angle as shown in the figure, And inserted into the groove 155. At this time, the first connection groove 155 has a rectangular shape as shown in the drawing, and exists through the first wire block 150.

9B, so that the first wire 159 is prevented from being disengaged through the first connection groove 155, as shown in FIG. 9B, so that the first wire 159 is connected in a ring- 9 (c), the connection and fixing of the first wire 159 is completed.

The first wire 159 and the second wire 167 separated from each other as described above are detachably connected through the wire block 140 and the wire block 140 is connected to the joint block 110 so that the tip of the tube 21 is bent in the up / down or left / right direction, which will be described in detail with reference to FIG.

The wire block 140 is for allowing the tube 21 to operate in conjunction with the operation of the lever 31 of FIG. 1. When the lever 31 is operated, the wire block 140 10, when the lever 31 is operated in any one direction (front / back or left / right), the head first block 151, the main body first block 161, The second block 153 and the main body second block 163 move in an integrated manner to bend the tube 31 in the up / down direction.

10A, when the tube 31 is bent downward, the head first block 151 and the body first block 161 are pulled in the direction of the main body 30 and the tube 31 The head second block 153 and the body second block 163 can be bent to the upper side of the main body 30 as shown in Fig. So that the tube 31 is bent upward.

Meanwhile, when the insertion portion 20 is detached from the main body 30, it must be operated through the separation lever 170 as shown in FIG. 11. The description will be made with reference to the following drawings.

11 is a detailed view for explaining a separating means according to a preferred embodiment of the present invention.

As shown in the figure, the separating lever 170 has both ends rotatable and has a bar shape between both ends.

The separating lever 170 is installed in the main body 30 corresponding to the fastening device 100, and a part of the separating lever 170 exists in the form of a buried inside thereof.

The protruded region has a length that the practitioner can grasp and rotate, and in order to improve the frictional force or the rotational force, a plurality of bones may be formed in the outer periphery, or at least the diameter of the protruded region may be further enlarged to facilitate rotation have.

11A, when the separating lever 170 is rotated in the counterclockwise direction as shown in FIG. 11B, the curved section is formed in one area of the coupling part, that is, The first coupling block 120 is pushed downward and separated from the main body 30 together with the insertion portion 20. [

INDUSTRIAL APPLICABILITY As described above, the detachable wire fastening apparatus according to the present invention can easily separate the inserting portion and the inserting portion by separate cleaning, disinfecting or disposing the inserting portion to prevent medical accidents due to infection, It is possible to improve the economical efficiency of the maintenance as well as to easily control the bending of the tube through the main lever so that the access to the affected part is easy, The effect of improving the success rate can be expected.

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. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as falling within the scope of the present invention.

10: endoscope 20: insertion part (first member)
21: tube 23: photographing unit
25: pulling part 27:
30: main body (second member) 31: lever
100: fastening device 110: engaging block
120: first coupling block 121: first bracket
123: first tunnel 125: first slider
130: second coupling block 131: second bracket
133: first groove 135: second tunnel
137: second slider 140: wire block
150: first wire block 151: insertion portion (first member) first block
153: insertion portion (first member) second block 155: first connection groove
157: insertion portion (first member) projection 159: first wire
160: second wire block 161: main body (second member) first block
163: main body (second member) second block 165: second groove
167: second wire 169: second connection groove
170: separating lever 180: engaging means
190: Clamping screw

Claims (11)

1. A fastening device for fastening a first member and a second member, each of which is provided with a wire,
The fastening device includes:
A coupling block provided to face the first and second members so as to face each other and provided with a slider on one surface thereof and to detachably couple the first and second members through the slider;
A wire block slidably installed through a tunnel provided at the center of the coupling block to couple a pair of wires to each of the first member and the second member; And
And a separating lever provided on one surface of the first member or the second member and releasing the engagement state by pressing the engagement block of the second member or the first member in a direction opposite to the engagement through rotation Wherein the detachable wire fastening device is characterized in that the detachable wire fastening device comprises: The method according to claim 1,
The coupling block includes:
A first engaging block provided on the first member or the second member; And
And a second engaging block provided on the second member or the first member. 3. The method of claim 2,
The first coupling block includes:
A first bracket fixed to the first member or the second member and having a first tunnel formed at the center thereof; And
And a pair of first sliders vertically installed in the central region of the first bracket via fastening screws, the pair of first sliders being respectively installed at upper and lower portions around the first tunnel. The method of claim 3,
Wherein the first slider
Wherein a width of the one surface contacting the first bracket is different from that of the first surface,
Wherein the fastening member is formed to extend toward the back surface. 5. The method of claim 4,
Wherein the first slider
Wherein a slope between the one surface and the back surface is a slope or a multi-stepped shape, and a width of the slope increases toward the back surface. 6. The method of claim 5,
Wherein the second coupling block comprises:
A second bracket fixed to the second member or the first member and having a second tunnel formed at the center thereof; And
And a pair of second sliders provided on the right and left sides of the second bracket, respectively, with fastening screws around the second tunnel,
Wherein the second slider has a structure corresponding to the first slider and has a coupling structure capable of sliding up and down. The method according to claim 6,
The wire block includes:
A first wire block to which an end of the first wire is connected; And
And a second wire block to which an end of the second wire is connected,
Wherein the first wire block and the second wire block have the same coupling structure as the first slider and the second slider and are vertically and slidably engaged together with the coupling block. 8. The method of claim 7,
A protrusion is formed on one surface of the first wire block or the second wire block facing each other and a groove corresponding to the protrusion is formed on the other wire block and the first bracket or the second bracket, And the engagement state is maintained. 8. The method of claim 7,
And the first wire block and the second wire block are connected to each other,
A first member block connected to any one of the wires, and a second member block connected to another wire,
Wherein the first member block and the second member block are formed with connection grooves to which ends of the wires are connected,
And an end of the wire is connected to the connection groove in a ring shape. 10. The method according to any one of claims 1 to 9,
Wherein the first member and the second member are further provided with engaging means at each end facing each other to reinforce engagement of the first member and the second member. 11. The method of claim 10,
Wherein the coupling means comprises:
Wherein the first member or the second member is one of a coupling by a fitting in which a part of the first member or the second member is overlapped with each other, a screw coupling or a pin coupling.

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