Abstract:
A camera lens storage and exchange device according to the present invention includes a body having a first end and an oppositely disposed second end, where both ends are disposed along a longitudinal axis of the body. The device further includes a coupling mount disposed at each of the first and second ends, where each of the coupling mounts may be configured to, with respect to the body, receive thereto, retain therein, and release therefrom, a camera lens. The device further includes a rotational member connected at a mid-point of the body, where the rotational member may be configured to freely rotate the body about a rotational axis of the rotational member. The longitudinal axis of the body may be disposed orthogonal to and intersecting with the rotational axis of the rotational member.

Description:
TECHNICAL FIELD 
     The present invention relates to a camera lens storage and exchange device, and, more particularly, to a camera lens storage and exchange device being able to quickly and conveniently store a camera lens and exchange camera lenses during outdoor activities. 
     BACKGROUND ART 
     Digital cameras are classified into several kinds of product families, each having similar properties such as a performance, a composition, a price, a size, and so on. Recently, the digital cameras are generally classified into a compact camera, a high-end camera, a DSLR (digital single lens reflex) camera, a mirrorless camera, or a hybrid camera. 
     A compact camera and a high-end camera were very popular around year of 2000. However, the compact camera and the high-end camera were gradually neglected since around year of 2005 when a DSLR camera having an excellent performance more than those of the compact camera and the high-end camera spreaded. 
     In a SLR camera, an optical device such as a mirror, a pentaprism (a prism having a pentagonal shape), or so on is disposed between a lens and a film. An image penetrating through a lens is projected on a focus screen, and, at the same time, the image introducing into the lens is directly reflected and is positioned or formed on a view finder. A picture, which is completely the same as an image that a photographer watches, can be obtained. 
     By the above structure, the SLR camera is large and has a sufficient inner space. Thus, various additional functions can be added to the SLR camera and various lenses can be easily mounted on the SLR camera. Generally, a user can exchange lenses of the SLR camera and mount a lens on the SLR camera by oneself. Since properties of a photograph vary according to a kind of lenses mounted on the camera, an expert or a specialist necessary to various photograph performances generally uses the SLR camera. 
     A mirrorless camera or a hybrid camera is called as a mirrorless camera since the camera does not include a reflector (a mirror), unlike a DSLR camera, or is called as a hybrid camera because the camera has properties of a compact camera and properties of a DSLR camera. Although an exchange of lenses and an installation of the lens are possible, a size of a main body is as small as the compact camera. 
     As in the above, in the DSLR camera, the mirrorless camera or the hybrid camera that are generally used at present, a user can exchange lenses and can mount a lens on the camera by oneself. Thus, the user using the camera generally carries two or more lenses. Accordingly, storage devices for storing carried lenses have developed a lot. Among the storage devices, a camera lens pouch is most widely used. 
     When the camera lens pouch is used, a lens that will be exchanged is picked from the camera lens pouch, and a lens that is mounted on the camera is separated from the camera and is put into the camera lens pouch, and then, the lens that will be exchanged is mounted on the camera in order to exchange the lenses. In consideration of a size and a shape of a camera lens, it is difficult for a user to exchange lenses easily and quickly. That is, a risk that a lens falls during the exchange of the lenses is high. A lens may be stored at a predetermined or different location so as to decrease the risk; however, in this case, there is a risk of loss of the lens, or a risk of damage or destruction of the lens due to an external impact or force. 
     DISCLOSURE 
     Technical Problem 
     The invention has been made in an effort to solve the above problems, and an object of the invention is to provide a camera lens storage and exchange device being able to quickly and conveniently store a camera lens and exchange camera lenses without the need to store the camera lens at a predetermined or different location. 
     Technical Solution 
     A camera lens storage and exchange device according to the present invention includes a body, a pair of coupling mounts provided at both ends of the body, each of the pair of coupling mounts to be configured to be coupled to a lens mount of a camera lens, and a pair of rotation members provided at an outer surface of the body. 
     The pair of the rotation members may further include a string having both ends connected to the pair of the rotation members, respectively. 
     Each of the pair of the coupling mounts may include a plurality of fixing members at an inner circumference surface of each of the pair of the coupling mounts to prevent the lens mount from being separated from each of the pair of the coupling mounts in a state that the lens mount is coupled to one of the coupling mounts. 
     The body further may include a button to easily separate an end portion of the lens mount from the fixing member. 
     The rotation member may include a hinge, an inner hanging portion provided at an inside of the body in a state that a center of the inner hanging portion is in contact with a center of one end of the hinge, an outer hanging portion provided at an outside of the body in a state that a center of the outer hanging portion is in contact with a center of the other end of the hinge, and a connecting portion provided at a surface of the outer hanging portion opposite to the hinge, wherein a string is connected to the connecting portion. 
     The body may have a hole which the hinge penetrates through. 
     The body may be rotated 360 degrees about an axis of the hinge by the rotation member. 
     Advantageous Effects 
     In a camera lens storage and exchange device according to the invention, coupling mounts being able coupled to lens mounts are provided at both ends of an exchange device, and thus, a lens that will be exchanged can be separated from the camera lens storage and exchange device and a lens that is mounted on a camera can be coupled to the camera lens storage and exchange device at the same time. Thus, camera lenses can be easily and quickly exchanged. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view of a camera lens storage and exchange device according to an embodiment of the invention. 
         FIG. 2  is a perspective view of a rotation member according to an embodiment of the invention. 
         FIG. 3  is a perspective view of the rotation member according to the embodiment of the invention coupled to the body. 
         FIG. 4  illustrates a state of the camera lens storage and exchange device rotated by the rotation member shown in  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Hereinafter, a camera lens storage and exchange device according to an embodiment of the invention will be described in detail with reference to accompanying drawings. 
       FIG. 1  is a perspective view of a camera lens storage and exchange device according to an embodiment of the invention. 
     As shown in  FIG. 1 , a camera lens storage and exchange device  10  according to an embodiment of the invention includes a body  100 , a pair of coupling mounts  200  provided at both ends of the body  100 , a pair of rotation members (rotation holders)  300  provided at an outer surface of the body  100 . Each of the coupling mounts  200  is coupled to a lens mount  21  of a camera lens  20 . Also, the pair of the rotation members  300  may include a string  400  having both ends connected to the pair of the rotation members  300 , respectively. 
     The body  100  may be manufactured to be integral with the coupling mounts  200  so that the body  100  and the coupling mounts  200  constitute a single body. Selectively, the body  100  may be manufactured by a separated process from the coupling mounts  200 , and then, the body  100  and the coupling mounts  200  are coupled by various coupling methods, such as using screws, welding, or so on. 
     Each of the coupling mounts  200  includes a plurality of fixing members  210  at an inner circumference surface of each of the coupling mounts  200 . The fixing members  210  prevent the lens mount  21  from being separated from the coupling mounts  200  after the lens mount  21  is coupled to the coupling mount  200 . Each of the fixing members  210  may include two fixing protrusions  211  as a pair. The two fixing protrusions  211  are formed of thin plate shapes having the same sizes, and the two fixing protrusions  211  are spaced from each other at a predetermined distance. Insertion grooves  212  are formed at portions between the plurality of the fixing members  210 , respectively. End portions, (not shown), of the lens mount  21  are inserted into the insertion grooves  212  at an inside of the coupling mount  200 . After the end portions of the lens mount  21  are inserted into the insertion grooves  12 , the camera lens  20  is rotated at a predetermined angle. Then, the end portions of the lens mount  21  are inserted between the two fixing protrusions  211 , respectively. Thereby, the lens mount  21  can be mounted on or fixed to the coupling mount  200 . A distance between the two fixing protrusions  211  is the same as a thickness of the end portions of the lens mount  21 . Then, after the camera lens  20  is rotated at the predetermined angle and the end portion of the lens mount  21  is inserted between the two fixing protrusions  211 , the end portion of the lens mount  21  and the fixing protrusions  211  can be stiffly and tightly fixed to each other. Since the end portion of the lens mount  21  and the two fixing protrusions  211  can be stiffly and tightly fixed to each other, the camera lens  20  can be prevented from being separated from the camera lens storage and exchange device  10  by user&#39;s carelessness, or an outer impact or force, after the camera lens  20  is mounted on the camera lens storage and exchange device  10 . 
     However, in a case where the distance between the two fixing protrusions  211  is the same as the thickness of the end portion of the lens mount  21  to prevent the camera lens  20  from being separated from the camera lens storage and exchange device  10  by user&#39;s carelessness, or an outer impact or force after the camera lens  20  is mounted on the camera lens storage and exchange device  10 , it may be difficult to separate the camera lens  20  from the camera lens storage and exchange device  10 . Also, the lens mount  21  or the coupling mount  200  may be damaged by a compulsory separation. 
     Therefore, the body  100  of the camera lens storage and exchange device  10  may include a button  110  in order to easily separate the end portion of the lens mount  21  from the fixing member  210 . The button  110  allows one of the two fixing protrusions  211  positioned at an inner position of the coupling mount  200  between two fixing protrusions  211  constituting the fixing member  210  to move inwardly toward a center of the body  100 . 
     The end portion of the lens mount  21  can be easily separated from the fixing member  210  by the button  110 . For example, in order to separate the camera lens  20  from the camera lens storage and exchange device  10  in a state where the camera lens  20  is mounted on the camera lens storage and exchange device  10 , the camera lens  20  is rotated in a predetermined direction in a state where the button  110  is pushed, and then, the camera lens  20  can easily rotate, compared with a case where the camera lens  20  rotates in the predetermined direction in a state where the button  110  is not pushed. Accordingly, the camera lens  20  can be easily separated from the camera lens storage and exchange device  10  when the button  110  is pushed. That is, when the button  110  is pushed, the distance between the two fixing protrusions  211  increases, and thus, the end portion of the lens mount  21  can easily escape between the two fixing protrusions  211 , and the camera lens  20  can be easily separated from the camera lens storage and exchange device  10 . 
     On the other hand, in order to mount the camera lens  20  on the camera lens storage and exchange device  10  in a state where the camera lens  20  is separated from the camera lens storage and exchange device  10 , the end portion of the lens mount  21  is inserted into the insertion groove  212  and the camera lens  20  is rotated in a predetermined direction in a state that the button  110  is pushed, and then, the camera lens  20  can easily rotate, compared with a case where the camera lens  20  is rotated in a predetermined direction in a state that the button  110  is not pushed. Accordingly, the camera lens  20  can be easily mounted on the camera lens storage and exchange device  10  when the but ton  110  is pushed. 
     An elastic member  111  is provided at an end portion of the button  110  so that the distance between two fixing protrusions  211  can be elastically controlled. Therefore, when the button  110  is not pushed after the camera lens  20  is mounted on the camera lens storage and exchange device  10 , the button  110  is located at an original position by the elastic member  111 , and the fixing protrusion  211  connected to the button  110  and provided at the inner position of the coupling mount  200  is also located at an original position. Accordingly, after the mount of the camera lens  20 , the end portion of the lens mount  21  and the two fixing protrusion  211  can be stiffly and tightly fixed to each other. 
     Meanwhile, the string  400  provided at the camera lens storage and exchange device  10  may be formed of a string being bounded to the user or put on one shoulder of the user. Further, a control portion  410  for control a length of the string  400  according to a user may be included. 
     Next, a rotation member  300  provided at the body and connect the string  400  to the body  100  will be described. 
       FIG. 2  is a perspective view of a rotation member according to an embodiment of the invention, and  FIG. 3  is a perspective view of the rotation member according to the embodiment of the invention coupled to the body. 
     As shown in  FIG. 2  and  FIG. 3 , the rotation member  300  according the embodiment of the invention may include a hinge  310 , an inner hanging portion (an inner hooked portion)  320 , an outer hanging portion (an outer hooked portion)  330 , and a connecting portion  340 . The inner hanging portion  320  is provided at an inside of the body  100  in a state where a center of the inner hanging portion  320  is in contact with a center of one end of the hinge  310 . The outer hanging portion  330  provided at an outside of the body  100  in a state where a center of the outer hanging portion  33   0  is in contact with a center of the other end of the hinge  310 . The connecting portion  340  is provided at a surface of the outer hanging portion  330  opposite to the hinge  310 , and the string  400  may be connected to the connecting portion  340 . The body  100  has a hole  120  which the hinge  310  penetrates through. 
     The hinge  310  of the rotation member  300  has a cylindrical shape, and the hinge  310  of the rotation member  300  is smaller than a hole  120  of the body  100 . Thus, the hinge  310  of the rotation member  300  can freely rotate within the hole  120 . Also, the inner hanging portion  320  is provided at one surface or one side of the hinge  310  to be disposed at an inside of the body  100 . The inner hanging portion  320  has a cylindrical shape, like the hinge  310 , and the inner hanging portion  320  is larger than the hole  120  of the body  100 . Thus, the rotation member  300  can be prevented from being separated from the body  100 . 
     Also, the outer hanging portion  330  is provided at the other surface or the other side of the hinge  310  to be disposed at an outside of the body  100 . The outer hanging portion  330  has a cylindrical shape, like the inner hanging portion  320 , and the outer hanging portion  330  is larger than the hole  120  of the body  100 . Thus, the rotation member  300  can be prevented from falling into the body  100 . 
     A length of the hinge  310  may be greater than a thickness of the body  100  by a predetermined length. If the length of the hinge  310  is the same as the thickness of the body  10   0 , the inner hanging portion  320  and the outer hanging portion  330  are in contact with the body  10   0  and thus the hinge  310  may not easily rotate by friction force when the rotation member  300  rotates about an axis of the body  100 . On the contrary, if the length of the hinge  310  is excessively greater than the thickness of the body  10   0 , a width of the hinge  310  moving the inside and the outside of the body  100  may be large. Then, force applied to the inner hanging portion  320  and the outer hanging portion  330  provided at both sides of the hinge  310  may increase according to the width of the hinge  310  moving the inside and the outside of the body  100 , and therefore, the inner hanging portion  320  and the outer hanging portion  330  may be damaged or destroyed or may be separated from the hinge  310 . Accordingly, the length of the hinge  310  may be greater than the thickness of the body  100  by the predetermined length so that the excessive force is not applied to the inner hanging portion  320  and the outer hanging portion  330 . 
     In addition, the outer hanging portion  330  may include the connecting portion  340  provided at a surface of the outer hanging portion  330  opposite to the other surface of the hanging portion  330  being in contact with the hinge  310 . The string  400  is connected to the connecting portion  340 . The connecting portion  340  may be manufactured to be integral with the outer hanging portion  330  so that the connecting portion  340  and the outer hanging portion  330  constitutes a single body. Selectively, the connecting portion  340  may be manufactured by a separated process from the outer hanging portion  330 , and then, the connecting portion  340  and the outer hanging portion  330  are coupled by various coupling methods, such as using screws, welding, or so on. Further, as shown in  FIG. 3 , the connecting portion  340  has a cylindrical shape having the same size as the outer hanging portion  330 . However, the invention is not limited thereto, and thus, the connecting portion  340  may have one of various shapes, such as, a square pillar, a circular cone, a triangular pyramid, or so on. 
     Also, as shown in  FIG. 3 , the connecting portion  340  has a connecting hole  341  where the string  400  penetrates. One end of the string  400  penetrates through the connecting hole  341 , and the one end of the string  400  is coupled to a part of the string  400 , thereby connecting the string  400  to the connecting portion  340 . Besides, in a case that the connecting portion  340  does not have the connecting hole  341 , the string  400  may surround an outer circumferential surface of the connecting portion  340  and one end of the string  400  is coupled to a part of the string  400 , thereby connecting the string  400  to the connecting portion  340 . Also, one end of the string  400  may be connected to the connecting portion  340  without surrounding the outer circumferential surface of the connecting portion  340 . 
     Next, effects of the camera lens storage and exchange device  10  including the rotation member  300  will be described. 
       FIG. 4  illustrates a state of the camera lens storage and exchange device rotated by the rotation member shown in  FIG. 3 . As shown in  FIG. 4 , the camera lens storage and exchange device  10  according to the embodiment of the invention can rotate 360 degrees about an axis of the hinge  310  by the rotation member  300 . 
     For example, in order to couple the camera lens  20  to one coupling mount  200  of the pair of coupling mounts  200  of the camera lens storage and exchange device  10 , a user grasp the body  100  by a hand and rotates the camera lens storage and exchange device  10  by a degree so that the one coupling mount  200  of the pair of coupling mounts  200  can be seen by the user. Then, the lens mount  21  of the camera lens  20  is coupled to the coupling mount  200 . In this instance, the camera lens  20  coupled to the coupling mount  200  rotates to the ground about an axis of the hinge  310  by the rotation member  300  due to self-load (tare weight) of the camera lens  20  although the user does not manually rotate. 
     As another example, in order to exchange the camera lens  20  coupled to one coupling mount  200  of the pair of coupling mounts  200  of the camera lens storage and exchange device  10  with another camera lens  20 , the camera lens  20  coupled to the camera lens storage and exchange device  10  heads for the ground due to self-load, and another coupling mount  200  where the camera lens  20  is not coupled is positioned at a side opposite to the ground. Therefore, the user separates the another camera lens  20  coupled to the camera, and couples the another camera lens  20  separated from the camera to the another coupling mount  200  where the camera lens  20  is not coupled. And then, the user separates the camera lens  20  coupled to the one coupling mount  200  from the one coupling mount  2   0   0 , and mounts the camera lens  20  to the camera. In this instance, the another camera lens  20  separated from the camera and coupled to the camera lens storage and exchange device  10  rotates to the ground about an axis of the hinge  310  by the rotation member  3   0   0  due to self-load of the camera lens  20  although the user does not manually rotate. Because the camera lens  20  heads to the ground, the camera lens  20  can be safely carried and can be conveniently carried even when the user moves. 
     As in the above, according to the camera lens storage and exchange device  10 , the user can conveniently exchange the camera lenses  20  by the rotation member  300 . 
     Although the camera lens storage and exchange device of the embodiment of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.