Patent Publication Number: US-2019174733-A1

Title: Shock leader swivel

Description:
TECHNICAL FIELD 
     The present invention relates to a shock leader swivel and more specifically, to a shock leader swivel capable of prevent a fishing line from being cut even without a shock leader connected to a fishing line of a fishing rod. 
     DESCRIPTION OF THE RELATED ART 
     In general, a sinker, artificial bait etc. are connected to a fishing line of a fishing rod. The fishing line consists of polyethylene multi-filaments that are thin but strong. However, the fishing line is easily cut by an immediate shock when a large fish is snatched and when a fishing rod is cast. To solve this problem, a shock leader consisting of nylon or carbon is connected to a fishing line. 
     A plurality of strands of the shock leader are twisted and then connected to a fishing line and kept at a predetermined distance away from the fishing line. The fishing line is undone from the fishing line or wound around the fishing line so as to prevent the fishing line from being twisted and to prevent the fishing line from being cut due to an instant shock. 
     However, in terms of the above-described shock leader, a part where there is a knot or a part where there is a knot to which a sinker and artificial bait etc. are connected, on a fishing line and a shock leader, is cut due to an immediate shock that happens when a large fish is snatched. 
     Additionally, in terms of the above-described shock leader, a part connected with a fishing line is damaged by an instant shock or a part where there is a knot on a fishing line and a shock leader is damaged by an instant shock when heavy artificial bait is cast into the water so as to catch a large fish. Thus, the shock leader has to be re-connected to the fishing line. 
     Additionally, the fishing line consists of polyethylene multifilaments. When the fishing line is repeatedly twisted, the shock leader has a lowered restoring force. Thus, the shock leader has to be replaced with a new one after a certain period of time. 
     A plurality of strands of the above-described shock leader are twisted and then coupled to a fishing line. After being damaged or used for a certain period of time, the shock leader has to be replaced with a new one. In this case, replacing the shock leader with a new one is time and effort consuming. 
     As prior documents, there are South Korean Patent Laid-Open Publication No. 10-2015-0014004 etc. 
     DETAILED DESCRIPTION OF THE INVENTION 
     Technical Problems 
     As a means to solve the above-described problems, the present invention is directed to providing a shock leader swivel, which is provided with a shock leader portion having tensile force the same as maximum tensile forces of various sorts of fishing lines and coupled to a fishing line so as to prevent the fishing line and shock leader portion from being cut, and a swivel portion rotatably coupled to the shock leader portion so as to prevent a fishing line from being twisted, when a fish is snatched. 
     Technical Solutions 
     A shock leader swivel according to the first embodiment of the present invention includes a shock leader portion one end of which is coupled to a fishing line of a fishing rod and has tensile force; a swivel portion one end of which is rotatably coupled to the other end of the shock leader portion so as to prevent the fishing line and the shock leader portion from being twisted; and a clip portion one end of which is coupled to the swivel portion. 
     Further, the shock leader portion includes a first coupling portion so as to connect one end thereof to the fishing line, a second coupling portion so as to connect the other end thereof to one end of the swivel portion, and an elastic body having tensile force may be provided between the first and second coupling portions. 
     Further, the elastic body is configured as a coil spring where a plurality of coils are wound, and the tensile force of the elastic body may be adjusted depending on the number of windings and the thickness of the coil. 
     Further, the swivel portion includes a first loop portion which is coupled to the second coupling portion; a second loop portion which is coupled to one end of the clip portion; and a body portion into which the first and second loop portions are rotatably inserted and coupled such that the first and second loop portions rotate at upper and lower portions of the body portion, wherein the body portion has a hollow inside, and includes first and second insertion holes at the upper and lower portions thereof such that the first and second loop portions are inserted into and coupled to the upper and lower portions of the body portion. 
     Further, the first loop portion includes a first coupling rim which is coupled to the second coupling portion and has an opening on one side thereof; a pair of first insertion pins that extend downwards from the opening and are inserted into the first insertion hole; and a first escape prevention pin in which one ends of the pair of first insertion pins extend inwards and are coupled to an outer edge of the first insertion hole so as to prevent the first loop portion from escaping from the inside of the body portion, and the second loop portion includes a second coupling rim which is coupled to one end of the clip portion and has an opening on one side thereof; a pair of second insertion pins that extend upwards from the opening and are inserted into the second insertion hole; and a second escape prevention pin in which one ends of the pair of second insertion pins extend inwards and are coupled to an outer edge of the second insertion hole so as to prevent the second loop portion from escaping from the inside of the body portion. 
     Further, the clip portion includes first and second opening portions whose ends on one side thereof are configured to be coupled to and separated from each other such that the inlet and outlet of the second loop portion are possible; a first extension portion which extends from one end of the first opening portion while the first extension portion stands because of a reduced perpendicular width thereof at one end of the first opening portion; a second extension portion which extends from one end of the second opening portion while the second extension portion stands because of a reduced perpendicular width thereof at one end of the second opening portion; and an elastic portion, where the other ends of the first and second extension portions are connected to each other, on which the second loop portion is mounted, and which has a round outer side so as to be elastic enough to couple the second opening portion to the first opening portion and separate the second opening portion from the first opening portion, wherein the first opening portion includes a catching hook which is bent inwards in multiple stages such that the second opening portion is coupled to and separated from the first opening portion, and the second opening portion includes a catching hole one end of which is curved outwards and is coupled to the catching hook of the first opening portion. 
     A shock leader swivel according to the second embodiment of the present invention includes a swivel portion one end of which is rotatably coupled to a fishing line of a fishing rod and which prevents the fishing line from being twisted; a shock leader portion which is coupled to the other end of the swivel portion and has tensile force; and a clip portion on end of which is coupled to the shock leader portion, wherein the swivel portion includes first and second loop portions such that one end of the swivel portion is coupled to the fishing line while the other end is coupled to one end of the shock leader portion, and a body portion into which the first and second loop portions are rotatably inserted into and coupled to upper and lower portions thereof and which is formed between the first and second loop portions, and wherein the shock leader portion includes a first coupling portion one end of which is coupled to the second loop portion, a second coupling portion the other end of which is coupled to one end of the clip portion, and an elastic body in which a plurality of coils are wound between the first and second coupling portions and which is configured as a coil spring having tensile force. 
     Further, the body portion has a hollow inside, and includes first and second insertion holes at the upper and lower portions thereof such that the first and second loop portions are inserted into and coupled to the first and second insertion holes, wherein the first loop portion includes a first coupling rim which is coupled to the fishing line and has an opening on one side thereof; a pair of first insertion pins that extend downwards from the opening and are inserted into the first insertion hole; and a first escape prevention pin in which one ends of the pair of first insertion pins extend inwards and are coupled to an outer edge of the first insertion hole so as to prevent the first loop portion from escaping from the inside of the body portion, and wherein the second loop portion may include a second coupling rim which is coupled to the first coupling portion and has an opening on one side thereof; a pair of second insertion pins that extend upwards from the opening and are inserted into the second insertion hole; and a second escape prevention pin in which one ends of the pair of second insertion pins extend inwards and are coupled to an outer edge of the second insertion hole so as to prevent the second loop portion from escaping from the inside of the body portion. 
     Further, the clip portion includes first and second opening portions whose ends on one side thereof are configured to be coupled to and separated from each other such that the inlet and outlet of the second coupling portion are possible; a first extension portion which extends from one end of the first opening portion while the first extension portion stands because of a reduced perpendicular width thereof at one end of the first opening portion; a second extension portion which extends from one end of the second opening portion while the second extension portion stands because of a reduced perpendicular width thereof at one end of the second opening portion; and an elastic portion, where the other ends of the first and second extension portions are connected to each other, on which the second coupling portion is mounted, and which has a round outer side so as to be elastic enough to couple the second opening portion to the first opening portion and separate the second opening portion from the first opening portion, wherein the first opening portion includes a catching hook which is bent inwards in multiple stages such that the second opening portion is coupled to and separated from the first opening portion, and the second opening portion includes a catching hole one end of which is curved outwards and is coupled to the catching hook of the first opening portion. 
     Advantageous Effects 
     A shock leader swivel according to embodiments of the present invention is provided with a shock leader portion, which has tensile force the same as maximum tensile forces of various sorts of fishing lines, is coupled to a fishing line so as to effectively absorb the shock that happens when a fish is snatched and to prevent the fishing line and the shock leader portion from being cut, thereby making it possible to save time for the re-coupling of the fishing line and the shock leader portion when the fishing line is cut. 
     Further, when fishing tackle is cast into the water to catch a fish, a shock leader portion is deformed by tensile force so as to absorb the shock that happens when fishing tackle is cast, thereby preventing the fishing line from being cut. 
     Further, a swivel portion, rotatably coupled to a shock leader portion, can prevent a fishing line from being twisted when a fish is snatched and prevent damage done to the fishing line by the twist of the fishing line. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a view illustrating a state where a shock leader swivel according to the first embodiment of the present invention is coupled to a fishing line. 
         FIG. 2  is a view illustrating the shock leader swivel in  FIG. 1 . 
         FIG. 3  is a view illustrating the swivel portion in  FIG. 1 . 
         FIG. 4  is a view illustrating a shock leader swivel according to the second embodiment of the present invention. 
         FIG. 5  is a view illustrating the swivel portion in  FIG. 4 . 
         FIG. 6  is a view illustrating a state where the shock leader swivel in  FIG. 1  is being used. 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     Below, embodiments of the present invention will be described in detail with reference to the attached drawings such that one of ordinary skill in the art to which the present invention pertains can easily embody the present invention. However, the present invention may be modified in various forms and should not be limited to the embodiments set forth herein. 
     What is irrelevant to description of the present invention will be omitted such that the present invention is clearly described, and like reference numerals denote like or similar elements throughout the specification. 
     The thickness or the size of each element illustrated in the drawings may be exaggerated for the sake of convenience and clarity in description. Thus, the present invention should not be limited to what is illustrated in the attached drawings. 
     It should be understood that the terms “first”, “second” etc., are used herein only to distinguish one element from another element. Thus, in the following description of the present invention, the terms “first”, “second” etc. are not necessarily limited to order. 
     It will be further understood that throughout this specification, unless explicitly described to the contrary, the term “comprise” should imply the inclusion of any other element but not the exclusion of any other element. 
     Further, the terms “unit”, “means”, “portion”, “member” etc. set forth in this specification denote unit of a comprehensive configuration in at least one function or operation. 
       FIG. 1  is a view illustrating a state where a shock leader swivel according to a first embodiment of the present invention is coupled to a fishing line,  FIG. 2  is a view illustrating the shock leader swivel in  FIG. 1  and  FIG. 3  is a view illustrating the swivel portion in  FIG. 1 . 
     With reference to  FIGS. 1 to 3 , a shock leader swivel  100  according to the first embodiment of the present invention has one end which connects to a fishing line  20  of a fishing rod  10 , and the other end to which any one of a sinker (invisible), a fishing hook (invisible), artificial bait  30  is coupled, such that the fishing line  20  is prevented from being twisted and cut when fishing tackle is cast and a fish is snatched. 
     To this end, the shock leader swivel  100  includes a shock leader portion  110 , a swivel portion  120  and a clip portion  130 . 
     The shock leader portion  110  includes first and second coupling portions  111 ,  112  and an elastic body  113  so as to connect one end thereof to the fishing line  20  of the fishing rod  10 . 
     The first coupling portion  111  is formed at one end of the shock leader portion in the shape of a ring so as to be coupled to the fishing line  20 . 
     Herein, the fishing line  20  is knotted and coupled to the first coupling portion  111  so as not to separate from the first coupling portion. 
     Meanwhile, the first coupling portion  111  has a rubber-coated layer  111   a  on an outer circumferential surface thereof such that a frictional force between the fishing line  20  and the first coupling portion  111 , and damage done to the fishing line  20  by frictional force may be minimized. 
     Additionally, the second coupling portion  112  is formed at the other end of the shock leader portion in the shape of a ring so as to be coupled to one end of the swivel portion  120 . 
     The elastic body  113  is formed between the first and second coupling portions  111 ,  112  and is configured as a coil spring where a plurality of coils are wound so as to have a tensile force. 
     Herein, the tensile force of the elastic body  113  is adjusted depending on the number of windings and the thickness of a coil. 
     The tensile force of the elastic body  113  may be adjusted depending on the number of windings and the thickness of a coil and may be applied to various sizes of fishing rods  10  that require various tensile forces depending on the sizes of fish. 
     That is, the elastic body  113  is designed to have tensile forces the same as maximum tensile forces of various sorts of fishing lines and therefore may be applied to various fishing rods  10 . 
     Additionally, the swivel portion  120  has one end which is rotatably coupled to the second coupling portion  112  of the shock leader portion  110  so as to prevent the fishing line  20  and the shock leader portion  110  from being twisted, and includes a first loop portion  121 , a second loop portion  122  and a body portion  123 . 
     The first loop portion  121  includes a first coupling rim  121   a  which is coupled to the second coupling portion  112  and has an opening  121   b  on one side thereof. 
     The first loop portion  121  has a pair of first insertion pins  121   c  that extend downwards from the opening  121   b  and are inserted into an upper portion of the body portion  123 . 
     Herein, the body portion  123  has a hollow inside, and includes first and second insertion holes  123   a ,  123   b  at the upper and lower portions thereof such that the first and second loop portions  121 ,  122  are inserted into and coupled to the upper and lower portions of the body portion. 
     Additionally, the pair of first insertion pins  121   c  include a first escape prevention pin  121   d  one end of which extends inwards and is coupled to an outer edge of the first insertion hole  123   a  so as to prevent the first loop portion  121  from escaping from the inside of the body portion  123 . 
     The second loop portion  122  includes a second coupling rim  122   a  which is coupled to one end of the clip portion  130  and has an opening  122   b  on one side thereof, and a pair of second insertion pins  122   c  that extend upwards from the opening  122   b  and are inserted into the second insertion hole  123   b.    
     Additionally, the pair of second insertion pins  122   c  include a second escape prevention pin  122   d  one end of which extends inwards and is coupled to an outer edge of the second insertion hole  123   b  so as to prevent the second loop portion  122  from escaping from the inside of the body portion  123 . 
     That is, the first and second loop portions  121 ,  122  are rotatably inserted into and coupled to the upper and lower portions of the body portion  123 , and rotate at the body portion  123 . Thus, the fishing line  20  is prevented from being twisted when a fish is snatched, and damage done to the fishing line  20  is prevented. 
     Additionally, the clip portion  130  has one end which is coupled to the second loop portion  122  of the swivel portion  120  and the other end to which any one of a sinker (invisible), a fishing hook (invisible), artificial bait  30  is coupled, and includes a first opening portion  131 , a first extension portion  132 , a second opening portion  133 , a second extension portion  134 , and an elastic portion  135 . 
     Ends on one side of the first and second opening portions  131 ,  133  are configured to be coupled to and separated from each other such that the inlet and outlet of the second loop portion  122  is possible. 
     Additionally, the first opening portion  131  includes a catching hook  131   a  which is bent inwards in multiple stages such that the second opening portion  133  is coupled to and separated from the first opening portion  131 . 
     The second opening portion  133  includes a catching hole  133   a  one end of which is curved outwards and is coupled to the catching hook  131   a  of the first opening portion  131 . 
     Additionally, the first extension portion  132  extends from one end of the first opening portion  131  while the first extension portion stands because of a reduced perpendicular width thereof at one end of the first opening portion. 
     The second extension portion  134  extends from one end of the second opening portion  133  while the second extension portion stands because of a reduced perpendicular width thereof at one end of the second opening portion. 
     Additionally, the elastic portion  135 , where the other ends of the first and second extension portions  132 ,  134  are connected to each other and on which the second loop portion  122  is mounted, has a round outer side so as to be elastic enough to couple the second opening portion  133  to the first opening portion  131  and separate the second opening portion from the first opening portion. 
     That is, the elastic portion  135  may supply elastic stress such that the second extension portion  134  is deformed, and coupled to and separated from the first opening portion  131 . 
     Meanwhile, any one of a sinker (invisible), a fishing hook (invisible), artificial bait  30  may be coupled to the inside of the first and second opening portions  131 ,  133 , in the state where the first and second opening portions  131 ,  133  are coupled through the catching hook  131   a  and the catching hole  133   a  of the clip portion  130 . 
       FIG. 4  is a view illustrating a shock leader swivel according to the second embodiment of the present invention, and  FIG. 5  is a view illustrating the swivel portion in  FIG. 4 . 
     With reference to  FIGS. 4 and 5 , a shock leader swivel  200  according to the second embodiment of the present invention includes a swivel portion  210 , a shock leader portion  220  and a clip portion  230 . 
     The swivel portion  210  has one end which is rotatably coupled to the fishing line  20  of the fishing rod  10  so as to prevent the fishing line  20  from being twisted. The swivel portion  210  includes first and second loop portions  211 ,  212  such that one end of the swivel portion is coupled to the fishing line  20  while the other end is coupled to one end of the shock leader portion  220 , and a body portion  213  between the first and second loop portions  211 ,  212  such that the first and second loop portions  211 ,  212  are rotatably inserted into and coupled to upper and lower portions of the body portion  213 . 
     That is, the first and second loop portions  211 ,  212  are rotatably inserted into and coupled to the upper and lower portions of the body portion  213 , and rotate at the body portion  213 . Thus, the fishing line  20  is prevented from being twisted when a fish is snatched, and damage done to the fishing line  20  is prevented. 
     Herein, the body portion  213  has a hollow inside, and includes first and second insertion holes  213   a ,  213   b  at the upper and lower portions thereof such that the first and second loop portions  211 ,  212  are inserted into and coupled to the upper and lower portions of the body portion. 
     The first loop portion  211  that is coupled to the fishing line  20  includes a first coupling rim  211   a  having an opening  211   b , a pair of first insertion pins  211   c  and a first escape prevention pin  211   d . The first insertion pins  211   c  and the first escape prevention pin  211   d  are the same as the first insertion pins  121   c  and the first escape prevention pin  121   d  described in the first embodiment of the present invention. Thus, detailed description of the first insertion pins  211   c  and the first escape prevention pin  211   d  will be omitted. 
     Herein, the fishing line  20  is knotted and coupled to a first coupling rim  211   a  so as not to separate from the first coupling rim  211   a.    
     Additionally, the first coupling rim  211   a  has a rubber-coated layer  211   e  on an outer circumferential surface thereof such that a frictional force between the fishing line  20  and the first coupling rim  211   a , and damage done to the fishing line  20  by frictional force may be minimized. 
     Further, the second loop portion  212  to which one end of the shock leader portion  220  is coupled includes a second coupling rim  212   a  which has an opening  211   b  on one side thereof, and consists of a pair of second insertion pins  212   c  and a second escape prevention pin  212   d . The second insertion pins  212   c  and the second escape prevention pin  212   d  are the same as the second insertion pins  122   c  and the second escape prevention pin  122   d  described in the first embodiment of the present invention. Thus, detailed description of the second insertion pins  212   c  and the second escape prevention pin  212   d  will be omitted. 
     The shock leader portion  220  consists of an elastic body  223  having a tensile force, and has one end coupled to the second loop portion  212  of the swivel portion  210  and the other end coupled to one end of the clip portion  230 . 
     That is, the shock leader portion  220  is coupled to the swivel portion  210  and buffers the effect of a shock through the deformation of the elastic body  223  having a tensile force when a fish is snatched so as to prevent the fishing line  20  from being cut due to the shock. 
     The shock leader portion  220  consists of first and second coupling portions  221 ,  222  and an elastic body  223 , and the first and second coupling portions  221 ,  222  and the elastic body  223  are the same as the first and second coupling portions  111 ,  112  and the elastic body  113  of the shock leader portion  110  described in the first embodiment of the present invention. Thus, detailed description of the first and second coupling portions  221 ,  222  and the elastic body  223  will be omitted. 
     Additionally, the clip portion  230 , which is coupled to the second coupling portion  222  of the shock leader portion  220  and has the other end to which any one of a sinker (invisible), a fishing hook (invisible), and artificial bait  30  is coupled, includes first and second opening portions  231 ,  233  having a catching hook  231   a  and a catching hole  233   a , first and second extension portions  232 ,  234 , and an elastic portion  235 . The first and second opening portions  231 ,  233  having a catching hook  231   a  and a catching hole  233   a , the first and second extension portions  232 ,  234 , and the elastic portion  235  are the same as the first and second opening portions  131 ,  133  having a catching hook  131   a  and a catching hole  133   a , the first and second extension portions  132 ,  134 , and the elastic portion  135  described in the first embodiment of the present invention. Thus, detailed description of the first and second opening portions  231 ,  233  having a catching hook  231   a  and a catching hole  233   a , the first and second extension portions  232 ,  234 , and the elastic portion  235  will be omitted. 
       FIG. 6  is a view illustrating a state where the shock leader swivel in  FIG. 1  is being used. 
     The state where the shock leader swivel  100  according to the first embodiment of the present invention is being used is described as follows with reference to  FIG. 6 . 
     First, a fishing line  20  of a fishing rod  10  is coupled to a first coupling portion  111  of the shock leader portion  110 . 
     In this case, the fishing line  20  is knotted and coupled to the first coupling portion  111  so as not to separate from the first coupling portion  111 . 
     Herein, the fishing line  20  is knotted and coupled so as not to separate from the first coupling portion  111 . 
     Meanwhile, the first coupling portion  111  has a rubber-coated layer  111   a  on an outer circumferential surface thereof such that a frictional force between the fishing line  20  and the first coupling portion  111 , and damage done to the fishing line  20  by frictional force may be minimized. 
     Additionally, a first loop portion  121  of a swivel portion  120  is coupled to a second coupling portion  112  of the shock leader portion  110 , and any one of a sinker (invisible), a fishing hook (invisible), artificial bait  30  is coupled to a second loop portion  122  of the swivel portion  120  so as to prepare fishing tackle. 
     When a shock leader swivel  100  according to the present invention consecutively connects with the fishing line  20  as described above, the first and second loop portions  121 ,  122  being coupled to the swivel portion  120  rotate on the surface of the water such that the fishing line  20  rotates at the fishing rod  10 , thereby preventing the fishing line  20  from twisting. 
     Additionally, when a fish is caught on the fishing hook (invisible) or artificial bait  30  and snatched, an elastic body  113  of the shock leader portion  110  is elastically deformed by tensile force so as to absorb the shock that happens when a fish is snatched, thereby making it possible to prevent the fishing line  20  from being cut. 
     As described above, according to a shock leader swivel  100 ,  200  of the embodiments of the present invention, a shock leader portion  110 ,  220  having tensile force is coupled to a fishing line  20  so as to effectively to absorb the shock that happens when a fish is snatched, thereby preventing the fishing line  20  and the shock leader portion  110 ,  220  from being cut. 
     That is, the shock leader portion  110 ,  220  does not need to be re-coupled to the fishing line  20  because the shock leader portion  110 ,  220  is not cut off from the fishing line  20 , thereby making it possible to provide convenience to users. 
     Further, when fishing tackle is cast into the water to catch a fish, a shock leader portion  110 ,  220  is deformed by tensile force so as to absorb the shock that happens when fishing tackle is cast, thereby preventing the fishing line  20  from being cut. 
     Further, a swivel portion  120 ,  210 , rotatably coupled to the shock leader portion  110 ,  220 , can prevent the fishing line  20  from being twisted when a fish is snatched and prevent damage done to the fishing line  20  by the twist of the fishing line  20 . 
     The embodiments of the present invention have been described. However, it should be understood that the present invention is not limited to the above-described embodiments but is intended to cover various modifications and equivalent arrangements, made by one of ordinary skill in the art to which the present invention pertains and included within the spirit and scope of the present invention. 
     
       
         
           
               
             
               
                   
               
               
                 *Description of the Symbols* 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
            
               
                  10: Fishing rod 
                 20: Fishing line 
               
               
                  30: Artificial bait 
                 100: Shock leader swivel 
               
               
                 110: Shock leader portion 
                 111: First coupling portion 
               
               
                 111a: Rubber-coated layer 
                 112: Second coupling portion 
               
               
                 113: Elastic body 
                 120: Swivel portion 
               
               
                 121: First loop portion 
                 121a: First coupling rim 
               
               
                 121b: Opening 
                 121c: First insertion pin 
               
               
                 121d: First escape prevention pin 
                 122: Second loop 
               
               
                   
                 portion 
               
               
                 122a: Second coupling rim 
                 122b: Opening 
               
               
                 122c: Second insertion pin 
                 122d: Second escape prevention 
               
               
                   
                 pin 
               
               
                 123: Body portion 
                 123a: First insertion hole 
               
               
                 123b: Second insertion hole 
                 130: Clip portion 
               
               
                 131: First opening portion 
                 131a: Catching hook 
               
               
                 132: First extension portion 
                 133: Second opening portion 
               
               
                 133a: Catching hole 
                 134: Second extension portion 
               
               
                 135: Elastic portion 
                 200: Shock leader swivel 
               
               
                 210: Swivel portion 
                 211: First loop portion 
               
               
                 211a: First coupling rim 
                 211b: Opening 
               
               
                 211c: First insertion pin 
                 211d: First escape prevention 
               
               
                   
                 pin 
               
               
                 211e: Rubber-coated layer 
                 212: Second loop portion 
               
               
                 212a: Second coupling rim 
                 212b: Opening 
               
               
                 212c: Second insertion pin 
                 212d: Second escape prevention 
               
               
                   
                 pin 
               
               
                 213: Body portion 
                 213a: First insertion hole 
               
               
                 213b: Second insertion hole 
                 220: Shock leader portion 
               
               
                 221: First coupling portion 
                 222: Second coupling portion 
               
               
                 223: Elastic body 
                 230: Clip portion 
               
               
                 231: First opening portion 
                 231a: Catching hook 
               
               
                 232: First extension portion 
                 233: Second opening portion 
               
               
                 233a: Catching hole 
                 234: Second extension portion 
               
               
                 235: Elastic portion