Patent Publication Number: US-9425564-B2

Title: Connector

Description:
INCORPORATION BY REFERENCE 
     This application claims the benefit of Japanese Patent Application No. 2014-036778, filed on Feb. 27, 2014, which is incorporated herein by reference in its entirety. 
     BACKGROUND 
     The present invention relates to a connector for use in wiring an electric device and the like. 
     In general, a connector is used to electrically connect or disconnect an electrical component, an electric device and the like. For instance, Japanese Patent Application Laid-open No. 2010-092811 discloses a multiple electrical connector holding four plug modules which are arrayed side by side and each of which is connected to an end part of a coaxial cable. The plug modules are held in an insulated housing. The insulated housing is provided with a conductive shell attached to an outside thereof to cut off external noises and the like. Each plug module includes a conductive contact provided in a module housing and connected to a center conductor of the coaxial cable and an inner conductive shell provided so as to cover the module housing in which the conductive contact is provided. Because the inner conductive shell is formed by folding a thin plate-like metallic material, a seam is formed structurally. 
     In transmitting high frequency signals by using a coaxial cable, electromagnetic waves are generated from a conductive contact connected to a center conductor of the coaxial cable in general. Due to that, in the case where multiple conductive contacts are arrayed side by side, electromagnetic waves generated from the respective conductive contacts interfere with each other, generating an electromagnetic field coupling. If the electromagnetic field coupling is generated, an insertion loss increases and an inputted signal (high frequency component in particular) is lost. 
     Although the multiple electrical connector described in Japanese Patent Application Laid-open No. 2010-092811 is configured to be able to cut off external noises by the outer and inner two conductive shells, no consideration is taken to eliminate the interference between electromagnetic waves generated from a certain plug module and electromagnetic waves generated from another plug module in the interior of the multiple electrical connector. Specifically, the higher the frequency of the signals to be transmitted, the more the electromagnetic waves generated from the respective conductive contacts are apt to leak out of the seam of the inner conductive shell and to generate the electromagnetic field coupling. Therefore, the multiple electrical connector described in Japanese Patent Application Laid-open No. 2010-092811 has a problem that the connector generates a large insertion loss in transmitting a high frequency signal of 5.8 GHz or more for example. 
     Accordingly, an object of the present invention is to provide a connector that reduces or eliminates interferences of electromagnetic waves generated from the coaxial terminals arrayed side by side and decreases insertion loss. 
     SUMMARY 
     An aspect of the connector according to the present invention includes: multiple coaxial terminals each of which is formed into a shape of L, and has a connecting part attached to a coaxial cable and a terminal part bent with respect to the connecting part; a housing including a housing body having storage parts storing the coaxial terminals arrayed side by side and a cover closing the respective storage parts of the housing body; and a radio wave absorbing member disposed between the coaxial terminals stored in the respective storage parts and the cover and extending over the coaxial terminals. The radio wave absorbing member is disposed so as to face at least a bent part in which the terminal part is bent with respect to the connecting part of each of the plurality of coaxial terminals, and provided in contact with or in proximity to each of the coaxial terminals. 
     Because the terminal part is bent with respect to the connecting part and the coaxial terminal is formed in a shape of L, a seam is structurally formed at a combination part in which the connecting part and the terminal part are combined with, interfere with, or face each other. Further, although the coaxial cable is configured to cut off electromagnetic waves by its coaxial structure, electromagnetic waves are emitted from an exposed center conductor on which a terminal treatment is performed or from the coaxial terminal connected to the center conductor. In this aspect of the connector, the radio wave absorbing member is provided over the adjacent coaxial terminals and is disposed so as to face the bent part of the coaxial terminal. In this configuration, the electromagnetic waves generated from the respective coaxial terminals and heading to the adjacent coaxial terminals are cut off (absorbed) by the radio wave absorbing member. Accordingly, because interference of the electromagnetic waves generated from the coaxial terminals is reduced or eliminated, it is possible to prevent an electromagnetic field coupling from being generated. Thus, this configuration makes it possible to effectively suppress an increase of insertion loss and to accurately transmit high frequency signals. 
     In another aspect of the connector according to the present invention, the radio wave absorbing member includes: a fixing part fixed to an inner surface of the cover; and multiple contact pieces extending from the fixing part so as to come into contact with the coaxial terminals, respectively. 
     In this aspect of the connector, the coaxial terminals stored in the housing body can be pressed by the contact pieces, respectively. This configuration makes it possible to suppress fluctuations of the insertion loss generated by moves of the coaxial terminals within the housing body. 
     In still another aspect of the connector according to the present invention, each of the contact pieces is in contact with a part of one of the coaxial terminals facing a center conductor exposed out of the coaxial cable on which a terminal treatment is performed and which is electrically connected to said one of the coaxial terminals. 
     In this aspect of the connector, each of the contact pieces of the radio wave absorbing member can cut off the electromagnetic waves generated from the center conductor on which a terminal treatment is performed and heading toward the adjacent coaxial terminals and the center conductors. This configuration makes it possible to prevent the electromagnetic field coupling from being generated and to effectively suppress the increase of insertion loss. 
     In yet another aspect of the connector according to the present invention, the storage parts adjacent to each other are partitioned by an insulating partition wall. 
     In this aspect of the connector, the adjacent coaxial terminals are partitioned by the partition walls, so that the coaxial terminals can be held in the positions set in an electrically non-contact condition. 
     Further aspects of the connector according to the present invention will become apparent from the following description of exemplary embodiments. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view showing a connector of an embodiment of the present invention viewed from above thereof. 
         FIG. 2  is a perspective view showing the connector of the embodiment of the present invention viewed from below thereof. 
         FIG. 3  is a section view showing the connector taken along a line in  FIG. 1 . 
         FIG. 4  is an exploded perspective view showing the connector of the embodiment of the present invention. 
         FIG. 5  is a perspective view showing a cover and a radio wave absorbing member of the connector of the embodiment of the present invention viewed from below thereof. 
         FIG. 6  is a perspective view showing a coaxial terminal of the connector of the embodiment of the present invention in the state before the coaxial terminal is caulked to a coaxial cable. 
         FIG. 7  a bottom view showing the cover and the radio wave absorbing member of the connector of the embodiment of the present invention. 
         FIG. 8  is a rear view showing the radio wave absorbing member of the connector of the embodiment of the present invention. 
         FIG. 9  is a side view showing the radio wave absorbing member of the connector of the embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     An embodiment of a connector according to the present invention is described herein and in the drawings. For ease of explanation, as shown in the drawings, a front direction is denoted by ‘Fr’, a right-and-left direction is denoted by X, a front-and-rear direction by Y, and a up-and-down direction by Z. 
     A configuration of the connector  1  shown in  FIGS. 1 to 6 , which is an embodiment of a connector according to the present invention, will be explained.  FIGS. 1 and 2  are perspective views showing the connector  1 .  FIG. 3  is a section view of the connector  1  taken along a line in  FIG. 1 .  FIG. 4  is an exploded perspective view showing the connector  1 .  FIG. 5  is a perspective view showing a cover  11  and others viewed from below thereof.  FIG. 6  is a perspective view showing a coaxial terminal  3  in the state before a coaxial terminal  3  is caulked to a coaxial cable  4 . 
     As shown in  FIGS. 1 to 3 , the connector  1  includes a housing  2  formed substantially into a parallelepiped shape, four coaxial terminals  3  connected respectively to coaxial cables  4  and stored in the housing  2 , and a radio wave absorbing member  5  disposed between the housing  2  and the respective coaxial terminals  3 . This connector  1  is configured to fit with a mating connector  100  such that the four coaxial terminals  3  are electrically connected to four mating terminals  101  held in the mating connector  100  (see  FIG. 3 ). 
     The housing  2  is formed of an insulating material such as synthetic resin. The housing  2  has a so-called two piece structure which can be divided into two pieces and includes a housing body  10  storing the coaxial terminals  3  arrayed side by side and the cover  11  closing the housing body  10 . 
     As shown in  FIGS. 1 to 4 , the housing body  10  includes a body part  12  formed substantially into a rectangular box-like shape which is long in the right-and-left direction and a projecting part  13  formed integrally with the body part  12  so as to project downward from a front end part (tip part) of the body part  12 . It is noted that in the explanation of the connector  1  of the present embodiment, a downward direction in  FIG. 3  for example is a direction in which the connector  1  is fitted with the mating connector  100  and an upward direction is an anti-fitting direction. 
     As shown in  FIG. 4 , the body part  12  includes a base part  14 , a pair of outer walls  15  erecting at both end parts in the right-and-left direction of the base part  14 , and three base end side partition walls  16  erecting from the base part  14  at equal intervals between the side walls  15 . 
     The outer walls  15  and the base end side partition walls  16  are formed such that their heights are equal. Each of the outer walls  15  is formed to have a step substantially at the center thereof in the front-and-rear direction and such that a front side thereof projects toward inside. Each of the base end side partition walls  16  is formed to have a step substantially at the center thereof in the front-and-rear direction and such that a front side thereof is wide in the right-and-left direction as shown in  FIG. 4 . 
     The outer walls  15  and the base end side partition walls  16  are provided with inner locking concave parts  17  formed on the rear side of the walls by cutting downward from an upper end of the walls. Front end surfaces of the five inner locking concave parts  17  are formed at an identical position in the front-and-rear direction. Incidentally, the two inner locking concave parts  17  formed on the right (rear side in  FIG. 4 ) and center base end side partition walls  16  are formed respectively substantially into a shape of L which are symmetrical in a plan view. Specifically, the two inner locking concave parts  17  are formed such that sides thereof facing to each other are widened rearward. 
     A body side rear end piece  18 , which is bendable in the front-and-rear direction, is formed at a rear end part of the base end side partition wall  16  located at the center in the right-and-left direction. The body side rear end piece  18  is formed to be higher (to be long upward) than the respective outer walls  15  and the base end side partition walls  16 . The body side rear end piece  18  is provided with a first body side hook  18   a  formed at a front surface of an upper end part thereof so as to project forward. 
     The base end side partition wall  16  located at the center in the right-and-left direction is provided with a locking hole  19  penetrating in the up-and-down direction on the front side thereof. The locking hole  19  is provided with a second body side hook  19   a  projecting rearward on a front inner circumferential surface thereof. 
     A pair of lock parts  20  is formed integrally with the body part  12  on the rear side of the body part  12  and on outsides of the outer walls  15  located on the right side and the left side, respectively. Each of the lock parts  20  is connected to a lower end part of the outer wall  15  and is formed substantially into a shape of L in front view. Incidentally, outer walls of the lock parts  20  are formed such that their heights equal with the height of the body side rear end piece  18 . 
     An outer piece  20   b  is formed in the outer wall of each locking part  20  between a pair of slits  20   a  arranged in the front-and-rear direction and cut downward from an upper end of the wall. Each outer piece  20   b  is provided with a rectangular locking opening  20   c  cut away upward from a lower end of the wall. Each outer piece  20   b  is formed to be bendable in the right-and-left direction. Incidentally, each lock part  20  is formed such that a rear end part of the outer wall thereof is flush with a rear end surface of the base part  14  and the outer wall  15  and is slightly lower than the base end side partition wall  16 . 
     The body part  12  includes four storage concave parts  21  each of which is configured by being surrounded by the base part  14 , the outer wall  15 , and the base end side partition wall  16 . The storage concave part  21  is formed as a space whose rear and upper parts are opened to store the coaxial cable  4  and a base end part of the coaxial terminal  3  connected to an end part of the coaxial cable  4 . The four storage concave parts  21  adjacent to each other are partitioned by the base end side partition wall  16 , and are arrayed side by side substantially at equal intervals in the right-and-left direction. 
     As shown in  FIG. 3 , each storage concave part  21  has a reference floor surface  21   a  located on the front side, a convex floor surface  21   b  located on the rear side and formed to be lower than the reference floor surface  21   a  by one step, and a concave floor surface  21   c  located substantially at a center part in the front-and-rear direction and formed to be lower than the convex floor surface  21   b  by one step. Further, as described above, the front side of each outer wall  15  and the front side of each base end side partition wall  16  are formed respectively such that the width in the right-and-left direction of the storage concave part  21  is narrowed. Accordingly, each storage concave part  21  is formed such that the front side thereof is narrower than the rear side thereof in the up-and-down direction and the right-and-left direction (such that a diameter thereof is small). Incidentally, although not clear in  FIG. 4 , the rear side of the third storage concave part  21  from a front side of  FIG. 4  is slightly larger than the other storage concave parts  21  (such that a diameter thereof is large). 
     Furthermore, four reinforcing ribs  12   a  are formed on the side of the projecting part  13  in an under surface of the body part  12  so as to extend in the front-and-rear direction corresponding to the storage concave parts  21  and project downward (see  FIG. 2 ). 
     As shown in  FIGS. 2 to 4 , the projecting part  13  includes the four split projecting parts  22  arrayed side by side at equal intervals in the right-and-left direction and a front end wall  23  formed integrally with the four split projecting parts  22  so as to link surfaces of the four split projecting parts  22 . An upper end surface of the projecting part  13  is flush with an upper end surface of the body part  12 . 
     Each of the four split projecting parts  22  is formed substantially into a rectangular box-like shape which is long in the up-and-down direction. An upper end surface of each split projecting part  22  is opened (see  FIG. 4 ). A circular terminal opening  22   a  is opened at a lower end surface of each split projecting part  22  (see  FIG. 2 ). 
     As shown in  FIG. 4 , a tip side partition wall  24  extending from the front end part of each base end side partition wall  16  is formed integrally with the base end side partition wall  16  between the adjacent split projecting parts  22  within an upper part of the projecting part  13 . 
     A storage hole part  25  communicating a terminal opening part  22   a  with the storage concave part  21  is formed in the up-and-down direction within each of the four split projecting parts  22 . Each storage hole part  25  is formed in communication with the storage concave part  21  to store the tip part of the coaxial terminal  3 . The four adjacent storage hole parts  25  are arrayed side by side in the right-and-left direction while being parted by the tip side partition walls  24 . Further, each storage hole part  25  is formed to be slightly larger than the terminal opening part  22   a . Incidentally, the storage concave part  21  and the storage hole part  25  are examples of a ‘storage part’ and the base end side partition wall  16  and the front tip side partition wall  24  are examples of a ‘partition wall’. 
     As shown in  FIGS. 3 and 4 , the front end wall  23  is provided with a lock arm  26  and a pair of right and left guide hooks  27 . 
     The lock arm  26  includes a pair of right and left arm bodies  28  extending upward while slightly inclining forward from a lower end part of the front end wall  23  and a lock control part  29  linking upper end parts of the arm bodies  28 . 
     Each arm body  28  is formed to be bendable in the front-and-rear direction. Each arm body  28  is formed to have the equal height with each outer piece  20   b  and the body side rear end piece  18  described above. Each arm body  28  is provided with a lock projection  28   a  projecting at an upper part of a front surface thereof. The lock control part  29  is formed to project slightly forward of the arm bodies  28 . The lock control part  29  is provided with a rectangular lock concave part  29   a  cut rearward from a front end at a center part thereof in the right-and-left direction (see  FIG. 4 ). 
     As shown in  FIG. 4 , a pair of guide hooks  27 , which is located on the right and left sides, is formed symmetrically with each other and is flush with an outside surface of the split projecting parts  22  located at both right and left ends. Each of the guide hooks  27  is formed substantially into a shape of L in plan view such that a tip part extending forward is bent inside. 
     Next, the cover  11  shown in  FIGS. 1, 4 and 5  will be explained. The cover  11  covers each of the storage concave parts  21  and the storage hole parts  25  of the housing body  10  from above them. The cover  11  includes a cover body  30  formed so as to cover the housing body  10  and a handle  31  formed integrally with the cover body  30  so as to extend forward from a front end part of the cover body  30 . 
     The cover body  30  includes a plate part  32  formed substantially into a rectangular plate substantially covering the housing body  10  and a pair of vertical walls  33  provided vertically (so as to extend in the up-and-down direction) at both right and left end parts of the plate part  32 . 
     The plate part  32  is provided with a rectangular plate concave part  32   a  cut forward from a rear end thereof. The plate concave part  32   a  is provided with a cover side rear end piece  34  extending in the up-and-down direction and bendable in the front-and-rear direction at a center part thereof in the right-and-left direction. The cover side rear end piece  34  is formed to be slightly longer downward than the vertical walls  33 . The cover side rear end piece  34  is provided with a first cover side hook  34   a  projecting rearward on a rear surface of a lower end part thereof. 
     As shown in  FIG. 5 , the plate part  32  is provided with a cover side intermediate hook  35  extending in the up-and-down direction and bendable in the front-and-rear direction substantially at a center part of an under surface thereof. The cover side intermediate hook  35  is formed to have substantially an equal length with the cover side rear end piece  34 . The cover side intermediate hook  35  is provided with a second cover side hook  35   a  formed to project forward on a front surface of a lower end part thereof. 
     As shown in  FIGS. 1 and 4 , the plate part  32  is provided with fixing openings  36  extending in the front-and-rear direction and having a long and narrow rectangular shape, and the fixing openings  36  are formed in right and left parts on the front side of the plate part  32  so as to penetrate through the parts, respectively. Further, as shown in  FIG. 5 , the plate part  32  is provided with four sets of pressing projection pair  37  at positions corresponding to the respective storage concave parts  21  at a front under surface thereof. The plate part  32  is provided also with a pair of right and left guide pieces  38  at positions corresponding to the respective guide hooks  27 . 
     As shown in  FIGS. 4 and 5 , each of the vertical walls  33  is provided with a concave wall part  39  formed so as to dent inside substantially at a rear half thereof. The concave wall part  39  is provided with a pair of convex stripe parts  39   a  arranged in the front-and-rear direction and projecting from an upper end to a lower end of the wall. The concave wall part  39  is provided also with a locking projection  39   b  between the convex stripe parts  39   a . Incidentally, an upper part of the rear convex stripe part  39   a  is formed into a shape of a block. 
     The handle  31  is formed substantially into a shape of a rectangular arch to connect both right and left ends of the plate part  32 . The handle  31  is provided with a substantially rectangular handle concave part  31   a  cut down from an upper end of the handle  31  in front view (see  FIG. 4 ). A handle convex part  31   b  extending upward is formed at a center part of the handle concave part  31   a  in the right-and-left direction. The handle convex part  31   b  is formed such that a front end thereof is bent rearward, i.e., substantially into a shape of L in side view. Incidentally, an upper surface of the cover body  30  is flush with an upper surface of the handle  31  including that of the handle convex part  31   b.    
     Next, each of the coaxial terminals  3  shown in  FIGS. 3 and 6  will be explained. It is noted that because the four coaxial terminals  3  have an identical structure, respectively, the following explanation will be made by noticing on one coaxial terminal  3 . 
     As shown in  FIG. 6 , the coaxial terminal  3  is formed into a shape of L by having a connecting part  40  axially (in the front-and-rear direction) attached to the end part of the coaxial cable  4  and a terminal part  41  bent with respect to the connecting part  40 . 
     The coaxial cable  4  connected to the coaxial terminal  3  is composed of a center conductor  51 , an outer conductor  52  provided around the center conductor  51 , an insulator  50  provided between the center conductor  51  and the outer conductor  52 , and an outer cover  53  covering the external conductor  52 . 
     The connecting part  40  is composed of a conductive material such as metal. The connecting part  40  includes, in order from the rear side, a cover crimping barrel part  42 , an external conductor crimping barrel part  43  and an insulator surrounding part  44 . 
     The cover crimping barrel part  42 , before its caulking, has a pair of right and left cover crimping pieces  42   a  which is formed substantially into a shape of U in rear view. In the same manner, the external conductor crimping barrel part  43  has a pair of right and left conductor crimping pieces  43   a , and the insulator surrounding part  44  has a pair of right and left surrounding pieces  44   a . The cover crimping piece  42   a  and the surrounding piece  44   a  are formed so as to be in the shape of a long and narrow rectangle in side view and extend in the up-and-down direction, respectively. One of the conductor crimping pieces  43   a  is formed such that its edge is formed into a triangular shape and another one of the conductor crimping pieces  43   a  is formed such that its edge is formed into a shape of V. 
     The cover crimping barrel part  42  is provided with a pair of right and left locking convex pieces  42   b  at a rear end thereof. Each locking convex piece  42  extends out in the right-and-left direction substantially at a center of the cover crimping piece  42   a  in the up-and-down direction. 
     The terminal part  41  includes, in order from outside thereof, a terminal external conductor  45 , a terminal insulator  46 , and a terminal inner conductor  47  (see  FIG. 3 ). 
     The terminal external conductor  45  is formed into a cylindrical shape through bending works performed on one sheet metal (conductive material) integrated with the connecting part  40 . The terminal external conductor  45  is provided with a pair of right and left fitting piece parts  45   a  formed and cut substantially into a trapezoidal shape at a tip part thereof. 
     The terminal insulator  46  is composed of an insulating material. The terminal insulator  46  includes an insulated body part  46   a  formed into a cylindrical shape and an insulated projecting part  46   b  formed into a rectangular cylindrical shape. The insulated body part  46   a  is provided within the terminal external conductor  45 . The insulated projecting part  46   b  is bent into a shape of L from a base end part of the insulated body part  46   a  to the insulator surrounding part  44  side and is disposed between the pair of surrounding pieces  44   a.    
     As shown in  FIG. 3 , the terminal inner conductor  47  includes an inner conductor body part  47   a  and an inner conductor crimping barrel part  47   b  each of which is composed of a conductive material. The inner conductor body part  47   a  is provided within the insulated body part  46   a  and a tip part thereof is forked into two parts. The inner conductor crimping barrel part  47   b  is bent into a shape of L from the base end part of the inner conductor body part  47   a  to the insulator surrounding part  44  side and is provided within the insulated projecting part  46   b.    
     Next, steps for connecting the coaxial terminal  3  to the coaxial cable  4  will be explained. The connecting part  40  and the terminal part  41  are formed straightly before the coaxial terminal  3  is attached to the coaxial cable  4 . 
     Firstly, an operator performs a terminal treatment on each coaxial terminal  4  to expose center conductor  51 , and caulks the inner conductor crimping barrel part  47   b  of the terminal inner conductor  47  to the exposed center conductor  51 . After that, the operator bents the terminal part  41  into the shape of L with respect to the connecting part  40 . Next, the operator caulks the cover crimping barrel part  42  to the external cover  53  of the coaxial cable  4  and caulks the external conductor crimping barrel part  43  to the external conductor  52 . The operator bents each surrounding piece  44   a  of the insulator surrounding part  44  so as to wrap the insulated projecting part  46   b.    
     Thereby, the coaxial terminal  3  attached with the coaxial cables  4  is constructed (see  FIG. 4 ). It is noted that the connecting part  40  and the terminal part  41  (or more accurately, the terminal external conductor  45 ) are composed of one sheet metal. Due to that, when the sheet metal is bent into the shape of L, a bent part P 1  is formed between the connecting part  40  and the terminal part  41  (see  FIGS. 3 and 4 ). Behind the bent part P 1 , a combination part P 2  where the connecting part  40  and the terminal part  41  are combined with, interfere with, or face each other is formed (see  FIGS. 3 and 4 ). A seam is formed structurally at this combination part P 2 . 
     Next, the radio wave absorbing member  5  shown in  FIGS. 4, 5, 7 to 9  will be explained.  FIG. 7  is a bottom view showing the cover  11  and the radio wave absorbing member  5 .  FIGS. 8 and 9  are back and side views showing the radio wave absorbing member  5 . 
     The radio wave absorbing member  5  absorbs and/or reflects electromagnetic waves (radio waves). For instance, the radio wave absorbing member  5  is composed of a conductive radio absorbing material and transforms an electric current generated by the electromagnetic waves into heat by electrical resistance within the material. The radio wave absorbing member  5  is integrally formed of one thin stainless steel plate, e.g., around 0.1 mm or more and 0.5 mm or less of thickness, by performing press working or the like on the plate. 
     As shown in  FIG. 4 , the radio wave absorbing member  5  is disposed between the coaxial terminal  3  stored in each storage concave part  21  and each storage hole part  25  and the cover  11  and extends over the four coaxial terminals  3  arranged adjacent to each other. The radio wave absorbing member  5  has a fixing part  60  fixed to an inner surface of the cover  11  and four contact pieces  61  extending from the fixing part  60  so as to come into contact with the coaxial terminals  3 , respectively. 
     As shown in  FIGS. 4 and 7 to 9 , the fixing part  60  includes a belt-like fixing part body  62  extending over the four coaxial terminals  3  in the right-and-left direction, five restricting parts  63  extending rearward from the fixing part body  62 , and a pair of engage parts  64  bending upward from the restricting parts  63  of both right and left sides. 
     The five restricting parts  63  are arrayed side by side substantially at equal intervals in the right-and-left direction. Each restricting part  63  includes a belt-like restricting extension part  63   a  connected with a rear side edge of the fixing part body  62  and extending rearward and a restricting fitting part  63   b  connected to the rear end of the restricting extension part  63   a . Incidentally, the restricting parts  63  (the restricting fitting part  63   b  and the restricting extension part  63   a ) at the both right and left sides are formed such that the restricting part  63  is divided substantially into right and left parts. 
     Each restricting extension part  63   a  is cantilevered with respect to the fixing part body  62 . Each restricting fitting part  63   b  is formed substantially into a rectangular shape whose width in the right-and-left direction is wider than the width of the restricting extension part  63   a.    
     The right and left engage parts  64  are symmetrical from each other, and each engage part  64  is formed substantially into a shape of L in front view such that a tip part thereof extending upward is bent inside (see  FIG. 8 ). 
     As shown in  FIGS. 4, 7 and 8 , the four contact pieces  61  are disposed between the adjacent pairs of restricting parts  63 , respectively. Each contact piece  61  is formed substantially into a rectangular shape such that it is narrow on the rear side in bottom view (See  FIG. 7 ). Each contact piece  61  is formed so as to extend rearward from the rear edge of the fixing part body  62  and to incline downward (see  FIG. 9 ). Each contact piece  61  is formed to be bendable or displaceable in the up-and-down direction with elasticity with respect to the part connected with the fixing part body  62 . 
     As shown in  FIGS. 8 and 9 , each contact piece  61  is provided with a bent piece  61   a  bent obliquely upward at a rear end part thereof. Each contact piece  61  is also provided with a contact projection  61   b  projecting slightly downward at the part where the bent piece  61   a  of the contact piece  61  is bent. 
     As shown in  FIGS. 5 and 7 , the radio wave absorbing member  5  is fixed to the inner surface (under surface) of the cover  11  facing to the respective storage concave parts  21  and the respective storage hole parts  25 . Specifically, the operator places the radio wave absorbing member  5  between the cover side intermediate hook  35  and the respective guide pieces  38  on the backside of the cover  11 . Then, the operator inserts the pair of right and left engage parts  64  of the radio wave absorbing member  5  through the pair of right and left fixing openings  36  opened through the plate parts  32  of the cover  11 . Because the radio wave absorbing member  5  is integrally formed of the thin stainless steel plate, each of the engage parts  64  elastically deforms outside in the right-and-left direction, passes through the fixing opening  36 , and deforms inside in the right-and-left direction by its own resilience after passing through the fixing opening  36 . Thereby, the pair of right and left engage parts  64  is caught by edge parts of the fixing openings  36  and the radio wave absorbing member  5  is fixed such that the radio wave absorbing member  5  holds the plate part  32  (see  FIG. 1 ). 
     In this state, each restricting fitting part  63   b  fits between a pair of pressing projections  37  so that its position is restricted in the right-and-left direction. Further, the bent piece  61   a  of each contact piece  61  is disposed between the pair of pressing projections  37  so that its position is restricted in the right-and-left direction. 
     Next, steps for assembling the connector  1  of the present embodiment will be explained. 
     As shown in  FIG. 4 , the operator removes the cover  11  to expose the storage concave parts  21  and the storage hole parts  25  of the housing  2 . Then, the operator inserts the terminal part  41  of the coaxial terminal  3  (including a part of the coaxial cable  4 ) into the storage hole part  25  and inserts the connecting part  40  of the coaxial terminal  3  into the storage concave part  21 . At this time, the operator inserts the pair of right and left locking convex pieces  42   b  formed in the connecting part  40  into the inner locking concave parts  17  cut in the outer wall  15  and the base end side partition wall  16 . This arrangement makes it possible to restrict the coaxial terminal  3  from being pulled out even if the coaxial cable  4  is pulled rearward. 
     The operator inserts the other coaxial terminals  3  with the same procedure. Thereby, the connecting parts  40  are stored in the four storage concave parts  21  formed in the body part  12  and the terminal parts  41  are stored in the four storage hole parts  25  formed in the projecting part  13 , respectively. That is, the four coaxial terminals  3  are stored in the housing  2  side by side in the right-and-left direction. In this state, in the storage concave part  21 , the coaxial cable  4  is disposed on the convex floor surface  21   b , the cover crimping barrel part  42  is disposed on the concave floor surface  21   c , and the external conductor crimping barrel part  43  and the insulator surrounding part  44  are disposed on the reference floor surface  21   a  (see  FIG. 3 ). 
     It is noted that the coaxial terminal  3 , whose locking convex part  42   b  is provided at the position moved rearward more than normal one, is stored in the third storage concave part  21  from the front side in  FIG. 4 . This coaxial terminal  3  is used for transmission of high frequency signals or the like for example. The two base end side partition walls  16  forming the third storage concave part  21  are provided with the inner locking concave parts  17  formed widely toward the rear side as described above. Therefore, the coaxial terminal  3  in which the position of the locking convex part  42   b  is changed cannot be stored in the other storage concave parts and can be stored only in the third storage concave part  21  in  FIG. 4 . This arrangement makes it possible to clearly identify the storage position of the coaxial terminal  3  used for a special purpose and to prevent it from being stored in an erroneous position. 
     Next, the operator attaches the cover  11  over the housing  2 . The operator inserts the tip part of each guide piece  38  of the cover  11  to each guide hook  27  of the housing  2  and presses the cover  11  down. In response to the advance of pressing, each vertical wall  33  of the cover  11  advances between each outer wall  15  and each locking part  20  of the housing  2 , and a pair of front and rear convex stripe parts  39   a  formed on each vertical wall  33  enters a pair of front and rear slits  20   a  formed on each of the locking parts  20 . In succession, the locking projection  39   b  formed on each vertical wall  33  comes into contact with the upper end part of the outer piece  20   b  formed on each locking part  20 . Then, along with the advance of pressing of the cover  11 , each outer piece  20   b  is pressed and widened to outside in the right-and-left direction. In response to the further advance of pressing, each locking projection  39   b  of the cover  11  engages with each locking opening  20   c  of the housing  2  by the resilience of each outer piece  20   b.    
     Further, in response to the advance of pressing of the cover  11 , the lower end part of the cover side rear end piece  34  of the cover  11  comes into contact with the upper end part of the body side rear end piece  18  of the housing  2 . Along with the advance of pressing of the cover  11 , the cover side rear end piece  34  bends forward and the body side rear end piece  18  bends rearward. In response to the further advance of pressing, the first cover side hook  34   a  of the cover side rear end piece  34  engages with the first body side hook  18   a  of the body side rear end piece  18  by the resilience of the respective pieces  18  and  34 . 
     Furthermore, along with the advance of pressing of the cover  11 , the lower end part of the cover side intermediate hook  35  of the cover  11  (see  FIG. 5 ) enters the locking hole  19  of the housing  2  and comes into contact with the upper end part of the second body side hook  19   a . Along with the advance of pressing of the cover  11 , the cover side intermediate hook  35  bends rearward. Along further with the advance of pressing of the cover  11 , the second cover side hook  35   a  of the cover side intermediate hook  35  engages with the second body side hook  19   a  by the resilience of the cover side intermediate hook  35 . 
     Thereby, the cover  11  is finished to be pressed down and is fixed to the housing  2  while closing the storage concave parts  21  and the storage hole parts  25 , respectively (see  FIGS. 1 and 2 ). That is, the connector  1  is completed to be assembled. 
     In the state in which the connector  1  is assembled, the under surface of the plate part  32  of the cover  11  is in contact with the upper end surface of each outer wall  15  and each base end side partition wall  16 . Further, as shown in  FIG. 1 , the rear end parts of the base end side partition walls  16  located at the both right and left ends are exposed out of the plate concave part  32   a  of the plate part  32 . Furthermore, the lock control part  29  of the lock arm  26  is disposed inside of the arch-like handle  31 . The handle convex part  31   b  of the handle  31  is disposed in the lock concave part  29   a  so as to restrict the control of the lock control part  29 . This arrangement makes it possible to prevent an erroneous control of the lock control part  29 . 
     As shown in  FIG. 3 , in the state in which the connector  1  is assembled, the four sets of the pair of pressing projections  37  are in contact with the insulator surrounding part  44  formed in the connecting part  40  of each of the stored coaxial terminals  3 , respectively. This arrangement makes it possible to fix the position of the coaxial terminal  3  in the up-and-down direction within each storage concave part  21 . 
     As shown in  FIG. 3 , in the state in which the connector  1  is assembled, the radio wave absorbing member  5  is disposed so as to face (or cover) at least the bent part P 1  and the combination part P 2  between the connecting part  40  and the terminal part  41  of each coaxial terminal  3  and also face (or cover) the center conductor  51  exposed out of each coaxial cable  4  on which the terminal treatment is performed. More specifically, the fixing part body  62  of the radio wave absorbing member  5  is disposed above the bent part P 1  of the coaxial terminal  3  so as to be slightly separate (in proximity) from the bent part P 1 . Further, each restricting part  63  extending in the axial direction of the connecting part  40  is disposed so as to face the external conductor  52  exposed out of the coaxial cable  4  on which the terminal treatment is performed. 
     Further, the radio wave absorbing member  5  is provided in contact with each coaxial terminal  3 . More specifically, in the assembling process (of pressing down the cover  11 ), the contact projection  61   b  of each contact piece  61  extending in the axial direction of the connecting part  40  comes into contact with the connecting part  40  (the insulator surrounding part  44 ) of the coaxial terminal  3  and each contact piece  61  bends slightly upward along with the advance of pressing of the cover  11 . Then, when the connector  1  is completely assembled, each contact piece  61  is put into a state in which the contact piece  61  is in pressure contact with the insulator surrounding part  44  with its resilience. That is, each contact piece  61  (the contact projection  61   b ) is in contact with a position facing to the center conductor  51  exposed out of the coaxial cable  4  on which the terminal treatment is performed and electrically connected to the coaxial terminal  3 . It is noted that along with the bend of each contact piece  61 , each contact projection  61   b  moves slightly rearward while sliding on a surface of the insulator surrounding part  44 . At this time, because the bent piece  61   a  is guided by the pair of pressing projections  37 , each contact projection  61   b  moves linearly without deviating in the right-and-left direction. 
     Next, a procedure for connecting (fitting) the connector  1  to the mating connector  100  shown in  FIG. 3  will be briefly explained. It is noted that each mating terminal  101  of the mating connector  100  is supposed to be electrically connected to a circuit on a substrate or a cable (both not shown) for example. 
     The operator inserts the projecting part  13  of the housing  2  to a fitting concave part  102  of the mating connector  100 . In response to the advance of pressing of the connector  1 , the lock arm  26  of the projecting part  13  (each arm body  28 ) comes into contact with an upper end part of the mating connector  100  and along with the advance of pressing of the connector  1 , each arm body  28  bends rearward at a fulcrum of a part connected with the front end wall  23 . In response to the further advance of pressing, the lock projection  28   a  of each arm body  28  engages with a mating locking opening  103  of the mating connector  100  by the resilience of each arm body  28 . Each coaxial terminal  3  of the connector  1  is also connected with each mating terminal  101  of the mating connector  100 . Thereby, the connection (fitting) of the connector  1  with the mating connector  100  is completed. 
     On the other hand, the connector  1  may be disconnected from the mating connector  100  as follows. The lock control part  29  of the lock arm  26  is pressed rearward to disengage each lock projection  28   a  from the mating locking opening  103 . Then the connector  1  is pulled out upward from the mating connector  100 . Thus, the connector  1  can be taken out of the mating connector  100 . 
     As described above, because the coaxial terminal  3  is bent into the shape of L at the connecting part  40  and the terminal part  41 , the seam is formed structurally at the combination part P 2 . Further, although the coaxial cable  4  is configured to cut off electromagnetic waves by providing the external conductor  52 , electromagnetic waves are emitted from the center conductor  51  exposed by the terminal treatment and the coaxial terminal  3  connected thereto. 
     According to the connector  1 , the radio wave absorbing member  5  is provided over the four coaxial terminals  3  arranged adjacent to each other and is disposed so as to face the bent part P 1  and the combination part P 2  of each coaxial terminal  3  and the center conductor  51  on which the terminal treatment is performed. Therefore, the electromagnetic waves generated from each coaxial terminal  3  and each center conductor  51  and heading to the adjacent coaxial terminals  3  and others is cut off (absorbed and/or reflected) by the radio wave absorbing member  5 . Accordingly, because the radio wave absorbing member  5  reduces or eliminates an interference of the electromagnetic waves generated from the coaxial terminals  3  and others, it is possible to prevent electromagnetic field couplings from being generated. Thus, this arrangement makes it possible to effectively suppress an increase of an insertion loss and to accurately transmit high frequency signals of 5.8 GHz or more for example. 
     Further, according to the connector  1 , the radio wave absorbing member  5  is fixed to the inner surface (under surface) of the cover  11 , so that it is possible to readily assemble the connector  1  capable of preventing the generation of the electromagnetic field couplings by the simple procedure of mounting the cover  11  to the housing body  10  storing the coaxial terminals  3 . Furthermore, because the radio wave absorbing member  5  is fixed to the inner surface of the cover  11 , it is possible to prevent displacement of the radio wave absorbing member  5  in assembling and using the connector  1 . 
     Furthermore, according to the connector  1 , each coaxial terminal  3  stored in the housing body  10  can be pressed by each contact piece  61 . This arrangement makes it possible to suppress fluctuations of the insertion loss generated by moves of the coaxial terminals  3  within the housing body  10  (each storage concave part  21 ). 
     Furthermore, according to the connector  1 , the four coaxial terminals  3  arranged adjacent to each other are isolated respectively by the base end side partition walls  16  and the front tip side partition walls  24 , so that each coaxial terminal  3  can be held at a position set in an electrically non-contact state. 
     By the way, the insulating partition walls  16  and  24  have high dielectric constants as compared to air, so that wavelength of the electromagnetic waves passing through the respective partition walls  16  and  24  is shortened and the electromagnetic waves are liable to leak out of the seam of the combination part P 2  of the coaxial terminal  3 . Due to that, the electromagnetic field coupling is liable to be generated between the adjacent coaxial terminals  3  and others. However, according to the connector  1 , the electromagnetic waves generated from the respective coaxial terminals  3  are cut off by the radio wave absorbing member  5 , so that it is possible to prevent the electromagnetic field couplings from being generated. This configuration makes it possible to suppress the increase of the insertion loss accompanying to the electromagnetic field coupling and to accurately transmit high frequency signals. 
     It is noted that although the four coaxial terminals  3  are provided in the connector  1 , the number of coaxial terminals is not limited as long as more than one coaxial terminal is provided. Further, although the multiple coaxial terminals  3  are arrayed side by side substantially at equal intervals in the right-and-left direction, the arrangement of the coaxial terminals  3  is not limited to this. The coaxial terminals may be arrayed at unequal intervals or may be arrayed while being offset in the front-and-rear direction more or less for example. 
     Further, although the stainless steel radio wave absorbing member  5  is used in the connector  1 , the material of the radio wave absorbing member  5  is not limited to this. A conductive radio absorptive material such as copper and aluminum for example may be used as the material of the radio wave absorbing member  5 . Furthermore, as the material of the radio wave absorbing member  5 , a dielectric radio absorptive material in which a conductive material such as carbon is blended with a dielectric substance such as rubber, urethane and polystyrol may be used, or a magnetic radio absorptive material absorbing radio by a magnetic material such as iron, nickel and ferrite may be also used. 
     It is noted that although the fixing part body  62  is disposed at the position slightly separated from the bent part P 1  of the coaxial terminal  3  in the connector  1 , the fixing part body  62  may be brought into contact with the bent part P 1  or the combination part P 2  of the coaxial terminal  3  for example. Furthermore, while the radio wave absorbing member  5  is in contact with each coaxial terminal through each contact piece  61  in the connector  1 , the radio wave absorbing member  5  may be provided in proximity to each of the coaxial terminals  3  (i.e. so as not to be in contact with the coaxial terminals  3 ). More specifically, in this case, a distance between a closest part of the radio wave absorbing member  5 , e.g., each contact piece  61 , and each coaxial terminal  3  (at least either one of the connecting part  40  and the terminal part  41 ) is preferable to be 0.5 mm or less. This distance is more preferable to be 0.1 mm or less. It has been confirmed that it is possible to prevent the electromagnetic field couplings from being generated and to effectively suppress the increase of the insertion loss even when the radio wave absorbing member  5  is disposed in proximity to each of the coaxial terminals  3  as described above. 
     It is noted that while the radio wave absorbing member  5  is fixed to the cover  11  through the engage parts  64  in the connector  1 . The way of attaching the radio wave absorbing member  5  is not limited to this. For instance, a radio wave absorbing member from which each engage part  64  is omitted or a radio wave absorbing member simply formed into a thin plate may be provided so as to be sandwiched between each of the coaxial terminals  3  and the cover  11 . The radio wave absorbing member may be pasted to each of the coaxial terminals  3  or to (the inner surface of) the cover  11 . The radio wave absorbing member may be also insert-molded to the cover  11  for example. 
     Further, a radio wave absorbing member that covers the whole housing body  10  may be provided in order to cover the bent part P 1  of each of the coaxial terminals  3 . The shape of the radio wave absorbing member  5  is arbitrary and may be formed into a rectangular or circular plate (oval plate) for example. The radio wave absorbing member  5  may be also provided so as to cover not all of the coaxial terminals  3  arrayed side by side. For instance, in the case where the third coaxial terminal  3  from the front side in  FIG. 4  is used for transmitting high frequency signals, the radio wave absorbing member  5  may be provided so as to cover at least the third coaxial terminal  3  and the pair of right and left coaxial terminals  3  adjacent to the third coaxial terminal  3 . 
     While the embodiments of the connector according to the present invention have been described, it is to be understood that the present invention is not limited to the embodiments except as defined in the appended claims.