Patent Publication Number: US-11031720-B2

Title: Connector with terminal fitting

Description:
BACKGROUND 
     Field of the Invention 
     The invention relates to a connector. 
     Related Art 
     Japanese Unexamined Patent Publication No. H06-333629 discloses a female connector and a male connector connectable to each other. The male connector includes a terminal supporting body supporting a male terminal and a main body for accommodating the terminal supporting body. The male terminal is formed such that a male tab projects forward. When the connectors are connected, the male tab is received into a female terminal to be connected electrically. 
     In accommodating the terminal supporting body into the main body, the male tab may interfere with an outer wall of the main body to be fractured or broken. In view of this, consideration has been given to assembling a protecting member with the terminal supporting body to cover and protect the male tab. However, such a configuration requires using a tool to remove the protecting member from the terminal supporting body to expose the male tab after the terminal supporting body is accommodated into the main body, thereby causing a problem of increasing working man-hours and complicating assembly. 
     The invention was completed on the basis of the above situation and aims to provide a connector capable of improving assembling workability. 
     SUMMARY 
     The invention relates to a connector with a terminal supporting body and a terminal covering body that are slidable relative to each other. A male terminal fitting is supported in the terminal supporting body and includes a projecting male tab. The connector also has a housing including an accommodating portion and a receptacle. The accommodating portion is configured to accommodate the terminal supporting body and the terminal covering body. The receptacle is connected to the accommodating portion and is configured to surround the male tab. The terminal covering body is relatively slidable between a protection position for covering the male tab and an exposed position for exposing the male tab. The accommodating portion is provided with a contact stop configured to stop the properly accommodated terminal covering body in contact therewith. The terminal supporting body relatively slides to displace the terminal covering body to the exposed position, is properly accommodated in the accommodating portion and locates the male tab in the receptacle when a force of a certain magnitude or higher is applied with the terminal covering body at the protection position stopped in contact with the contact stop. 
     A force of the certain magnitude or higher is applied to the terminal supporting body with the terminal supporting body and the terminal covering body inserted in the accommodating portion and with the terminal covering body at the protection position stopped in contact with the contact stop. This force causes the terminal supporting body relatively to slide and to displace the terminal covering body to the exposed position so that the male tab is arranged to be exposed in the receptacle. Thus, the male tab can be connected electrically to a mating female terminal fitting. 
     In a state before the terminal supporting body and the terminal covering body are accommodated into the accommodating portion, the male tab is protected by the terminal covering body at the protection position and the fracture or breakage of the male tab is avoided. 
     An operation of sliding the terminal supporting body and the terminal covering body is linked with an operation of accommodating the terminal supporting body and the terminal covering body into the accommodating portion, and these operations automatically displace the terminal covering body to the exposed position. Thus, a special tool for displacing the terminal covering body to the exposed position is unnecessary, working man-hours are not increased and assembling work is improved. 
     One of the terminal supporting body and the terminal covering body may be provided with a deflectable and deformable semi-locking portion, and the other may be provided with a restricting portion configured to be locked resiliently to the semi-locking portion at the protection position and to restrict a relative displacement of the terminal covering body to the exposed position unless a force of the certain magnitude or higher is applied to the terminal supporting body. According to this configuration, the terminal covering body is prevented from being displaced easily to the exposed position in the state before the terminal supporting body and the terminal covering body are accommodated into the accommodating portion. 
     The accommodating portion may be provided with a deflectable and deformable locking lance configured to retain and lock the properly accommodated terminal supporting body. According to this configuration, the terminal supporting body cannot escape from the accommodating portion. Further, the male terminal fitting is supported in the terminal supporting body locked by the locking lance. This supported and locked arrangement resists a pulling force that may be applied to a cable or wire that is connected to the male terminal fitting. 
     The accommodating portion may be provided with a hook that resiliently contacts the terminal covering body in a withdrawing direction, slides the terminal covering body to the protection position and allows the terminal covering body displaced to the protection position to be taken out when a force is applied to the terminal supporting body in the withdrawing direction. According to this configuration, if a force is applied to the terminal supporting body in the withdrawing direction when the terminal supporting body and the terminal covering body are taken out from the housing, the terminal covering body resiliently contacts the hook and is displaced to the protection position. The terminal supporting body and the terminal covering body then can be taken out from the housing. Thus, an operation of sliding the taken-out terminal supporting body and an operation of displacing the terminal covering body to the protection position need not be performed separately, and work efficiency can be improved. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         FIG. 1  is a side view in section showing a state where a unit composed of a terminal supporting body and a terminal covering body is inserted in an accommodating portion of a housing and the terminal covering body is arranged at a protection position in a connector according to one embodiment of the invention. 
         FIG. 2  is a section showing a state where the terminal covering body is displaced to an exposed position. 
         FIG. 3  is a section showing a state where the terminal covering body is displaced back to the protection position in the process of taking out the unit from the accommodating portions. 
         FIG. 4  is a front view showing a state where the unit is properly accommodated in the accommodating portion. 
         FIG. 5  is a plan view of the unit in which the terminal covering body is arranged at the protection position. 
         FIG. 6  is a side view of the unit in which the terminal covering body is arranged at the protection position. 
         FIG. 7  is a bottom view of the unit in which the terminal covering body is arranged at the protection position. 
         FIG. 8  is a perspective view of the unit in which the terminal covering body is arranged at the protection position. 
         FIG. 9  is a perspective view of the unit in which the terminal covering body is arranged at the exposed position. 
         FIG. 10  is a back view of the unit in which the terminal covering body is arranged at the exposed position. 
         FIG. 11  is a perspective view of the terminal supporting body. 
         FIG. 12  is a perspective view of the terminal covering body. 
         FIG. 13  is a plan view of the terminal covering body. 
         FIG. 14  is a bottom view of the terminal covering body. 
         FIG. 15  is a perspective view partly in section of a housing. 
         FIG. 16  is a section of the housing. 
     
    
    
     DETAILED DESCRIPTION 
     An embodiment is described on the basis of  FIGS. 1 to 16 . A connector  10  according to this embodiment is for in-vehicle communication and includes, as shown in  FIG. 4 , male terminal fittings  20 , a terminal supporting body  30 , a terminal covering body  50  and a housing  70 . The male terminal fittings  20  are supported in the terminal supporting body  30 . The terminal supporting body  30  and the terminal covering body  50  are assembled relatively slidably in a front-rear direction. The assembled terminal supporting body  30  and terminal covering body  50  are inserted into the housing  70  and accommodated along the front-rear direction. The structure of each member is described below. 
     The male terminal fitting  20  is formed integrally, such as by bending a conductive metal material. The male terminal fitting  20  includes an elongated male tab  21  projecting forward from a tubular body, and a rear area of the body is connected to an end part of a cable  90 , as shown in  FIG. 5 . The cable  90  is a twisted pair cable in which two wires  91  are twisted. The two wires  91  are untwisted in a part where a coating  92  is removed, and the male terminal fittings  20  are connected electrically and mechanically to the untwisted part. 
     Next, the terminal supporting body  30  and the terminal covering body  50  are described. Note that a vertical direction in the description is based on a state of FIGS.  1  to  4  where the terminal supporting body  30  and the terminal covering body  50  are accommodated in the housing  70 . 
     The terminal supporting body  30  is a dielectric made of synthetic resin and includes, as shown in  FIG. 11 , a support  31  in the form of a rectangular plate long in the front-rear direction. As shown in  FIG. 8 , a housing lock  32  projects on a front part of the upper surface of the support  31 , and forward movement restricting portions  33  project at left and right sides of the terminal supporting body  30  at positions behind the housing lock  32 . 
     As shown in  FIG. 11 , two rails  34  extend in the front-rear direction on both left and right end parts of the lower surface of the support  31 , and a partition  35  to extends in the front-rear direction in a laterally central part. Left and right insertion spaces  36  are defined in the terminal supporting body  30  by the rails  34 , the partition  35  and the support  31 . The male terminal fittings  20  are inserted and accommodated in the respective terminal insertion spaces  36  of the terminal supporting body  30 . Terminal retaining portions  37  project on the lower surface of the support  31  for retaining the male terminal fittings  20  accommodated into the respective terminal insertion spaces  36 . Additionally, supporting pieces  38  are formed on the lower surface of the support  31  for supporting the male tabs  21  of the male terminal fittings  20  accommodated into the respective terminal insertion spaces  36 . 
     The support  31  and the rails  34  form a cable end insertion space  39  behind the partition  35 . An end part of the coating  92  of the cable  90  is accommodated into the cable end insertion space  39  in the terminal supporting body  30 . Since the respective terminal insertion spaces  36  are located immediately in front of the cable end insertion space  39 , a length of the untwisted part from the end part of the coating  92  of the cable  90  to a connected part to the male terminal fittings  20  becomes shorter and communication performance can be improved. Note that the male terminal fittings  20  inserted into the respective terminal insertion spaces  36  are fixed in the terminal supporting body  30  and behave integrally with the terminal supporting body  30 . 
     Two rectangular plate-shaped restricting portions  41  project down on lower end front parts of the respective rails  34 . Further, guide grooves  42  having a recessed cross-section extend in the front-rear direction in outer left and right surfaces of the respective rails  34 . 
     The terminal covering body  50  is a dielectric made of synthetic resin and includes, as shown in  FIG. 12 , a rectangular plate-shaped cover  51  that is long in the front-rear direction. As shown in  FIGS. 10 and 14 , a contact  52  projects at laterally central part of the lower surface of the cover  51 . The contact  52  is a rectangular block long in the front-rear direction, and a rear end corner is chamfered. Further, hooks  53  project respectively on left and right sides of the contact  52  on the lower surface of the cover  51 . The hooks  53  are connected to left and right end surfaces of the contact  52  in a stepped manner to be slightly lower than the contact  52 . As shown in  FIG. 6 , the front surface of each hook  53  is inclined rearward and the rear surface thereof is arranged substantially upright in the vertical direction. 
     As shown in  FIG. 14 , through grooves  54  are open in both left and right end parts of the cover  51 . Each through groove  54  is in the form of a slit elongated in the front-rear direction. Left and right outer ends of the respective through grooves  54  are defined by semi-locking portions  55  in the cover  51 . Each semi-locking portion  55  is a beam supported on both ends and elongated in the front-rear direction, and includes an interfering portion  56  protruding to narrow a groove width of the through groove  54  in a central part in an extending direction. Each semi-locking portion  55  is deflected and deformed outward in an arched manner to allow a relative displacement of the restricting portion  41  in the through groove  54  when the restricting portion  41  interferes with the interfering portion  56 , as described later. 
     As shown in  FIGS. 12 and 13 , two side walls  57  extend in the front-rear direction on both left and right end parts of the upper surface of the cover  51 , a separation wall  58  extends in the front-rear direction in a laterally central part, and a front wall  59  extends in a lateral direction on a front end part. The front wall  59  is connected to the front ends of the side walls  57  and the separation wall  58   
     The respective side walls  57  are cut in parts corresponding to the respective semi-locking portions  55  and are located outwardly of the respective semi-locking portions  55  in the lateral direction. The semi-locking portions  55  can be deflected and deformed into spaces retracted inward of the outer surfaces of the side walls  57 . Guides  64  project inward on upper end parts of the respective side walls  57 . As shown in  FIG. 10 , the guides  64  can enter the guide grooves  42  and slide in the guide grooves  42 , thereby making the terminal supporting body  30  and the terminal covering body  50  relatively slidable. 
     As shown in  FIG. 12 , left and right covering spaces  61  are defined by the respective side walls  57 , the separation wall  58 , the front wall  59  and the cover  51  in the terminal covering body  50 . The male terminal fitting  20  is arranged to be covered in each covering space  61 . Left and right tab insertion openings  62  are open in the front wall  59  and the male tabs  21  of the male terminal fittings  20  can pass therethrough. Vertically aligned slit grooves  63  are open in the upper end of the front wall  59  and communicate with the respective tab insertion openings  62 . Each slit groove  63  serves as a passage when the male tab  21  is introduced into each tab insertion opening  62  and each supporting piece  38  of the terminal supporting body  30  enters the slit groove  63 , as shown in  FIG. 4 . 
     Next, the housing  70  is described. The housing  70  is made of synthetic resin and, as shown in  FIGS. 15 and 16 , has a tubular shape penetrating in the front-rear direction. The housing  70  includes an accommodating portion  71  and a receptacle  72 . The receptacle  72  is connected to the accommodating portion  71  and projects forward. 
     The accommodating portion  71  has an accommodation space  73  penetrating in the front-rear direction. A deflectable and deformable locking lance  74  is cantilevered forward on an inner wall upper surface of the accommodating portion  71  (inner wall upper surface of the accommodation space  73 ). A front end part of the locking lance  74  is in the form of a claw projecting downward. A contact stop  75  in the form of a step is provided in a laterally central part of an inner wall lower surface of the accommodating portion  71 , and an admission groove  76  is provided behind the contact stop portion  75 . The admission groove  76  is dropper slightly and has a recessed cross-section. The contact stop  75  is a vertical wall surface. 
     The admission groove  76  extends in the front-rear direction in an inner wall lower surface of the accommodation space  73  and is open in the rear end of the accommodating portion  71 , and the contact  52  and the hooks  53  of the terminal covering body  50  can enter the admission groove  76 . 
     As shown in  FIG. 15 , hooking portions  77  are provided on both left and right sides of the admission groove  76  on the inner wall lower surface of the accommodating portion  71 . Each hooking portion  77  is composed of an arm  78  cantilevered rearward from the contact stop  75 , a hooking body  79  in the form of a rectangular plate projecting in from a rear part (tip part, free end part) of the arm  78  to narrow a groove width of the admission groove  76 , and a chevron-shaped resistance portion  81  projecting up (toward the accommodation space  73 ) from the rear end of the arm  78  while having the same width as the arm  78 . The arm  78  is deflectable and deformable with a base end coupled to the contact stop portion  75  substantially as a fulcrum. Two mold removal grooves  82  formed by the passage of a mold for molding the respective hooking bodies  79  extend in the front-rear direction in front areas of the inner wall upper surface of the accommodating portion  71  across the contact stop  75 . As shown in  FIG. 16 , an attaching portion  83  is provided on a lower surface of the accommodating portion  71  and is to be attached to an unillustrated vehicle-side bracket. 
     The receptacle  72  is shorter in the front-rear direction than and radially one size larger than the accommodating portion  71 , and has a fitting space  84  penetrating in the front-rear direction and communicating with the accommodation space  73 . A claw-like lock  85  projects down on a front end part of an upper wall inner surface of the receptacle  72 . An unillustrated mating female connector is fit into the fitting space  84  of the receptacle  72 , and an unillustrated lock arm on the female connector resiliently locks the lock  85  to hold the connectors in a connected state. 
     Next, an assembling method and functions of the connector  10  of this embodiment are described. 
     In assembling, the male terminal fittings  20  are accommodated and held in the respective terminal insertion spaces  36  of the terminal supporting body  30 . Subsequently, the terminal covering body  50  is mounted on the terminal supporting body  30 . The guides  64  of the side walls  57  of the terminal covering body  50  resiliently enter the guide grooves  42  of the respective rails  34  of the terminal supporting body  30  so that the terminal supporting body  30  and the terminal covering body  50  are held in a separation restricted state (see  FIG. 10 ). Further, the restricting portions  41  of the terminal supporting body  30  enter rear parts of the respective through grooves  54  of the terminal covering body  50 , and the restricting portions  41  are arranged in a movement restricted state in the front-rear direction between the respective through grooves  54  and the respective interfering portions  56  (see  FIG. 7 ). At this time, the male tabs  21  of the male terminal fittings  20  project forward of the terminal supporting body  30 , but have the lower parts, both side parts and front parts thereof covered by the covering body  51 , the side walls  57  and the front wall  59  in the terminal covering body  50  (see  FIG. 8 ). In this way, the terminal covering body  50  is kept at a protection position for protecting the male tabs  21  with respect to the terminal supporting body  30 . When the terminal covering body  50  is at the protection position, the male tabs  21  of the male terminal fittings  20  are kept protected from external matter. 
     Subsequently, the terminal supporting body  30  and the terminal covering body  50  assembled as described above (hereinafter, referred to as a unit  100 ) are inserted into the accommodation space  73  of the accommodating portion  71  of the housing  70  from behind. At this time, the unit  100  is pushed into the accommodation space  73  while the cable  90  extending rearward from the terminal supporting body  30  is gripped. The male tabs  21  of the male terminal fittings  20  are covered by the terminal covering body  50  at the protection position. Thus, the wall surface of the housing  70  does not directly interfere with the respective male tabs  21 , thereby preventing fracture or breakage of the male tabs  21 . 
     The contact  52  of the terminal covering body  50  contacts the contact stop  75  of the housing  70 , as shown in  FIG. 1 , to define a properly inserted position of the terminal covering body  50  in the accommodation space  73  of the housing  70  with further forward movement stopped. At this time, a rear part of the terminal supporting body  30  is exposed behind the housing  70 . Further, the restricting portions  41  of the terminal supporting body  30  contact the resistance portions  81  of the respective hooks  77  to deflect and deform the respective hooks  77 . 
     The cable  90  continues to be pushed, and that pushing force becomes a force of a certain magnitude or higher mainly composed of a locking force between the restricting portions  41  and the respective interfering portions  56  and exceeding friction resistance acting on the unit  100 . Thus, the terminal supporting body  30  starts sliding with respect to the terminal covering body  50 . The restricting portions  41  separate from the respective resistance portions  81  when the terminal supporting body  30  starts sliding, thereby canceling a deflected state of the hooks  77 . Accordingly, and a sliding speed of the terminal supporting body  30  accelerates due to inertia. Further, the sliding of the terminal supporting body  30  displaces the restricting portions  41  toward front parts of the respective through grooves  54  and the restricting portions  41  press the respective interfering portions  56  so that the semi-locking portions  55  resiliently deflect and deform. 
     When the terminal supporting body  30  reaches a properly inserted position in the accommodation space  73  of the housing  70 , the restricting portions  41  move to front parts of the respective through grooves  54 , the semi-locking portions  55  resiliently return, and the restricting portions  41  are arranged between the through grooves  54  and the respective interfering portions  56  in a movement restricted state in the front-rear direction. In this way, relative sliding of the terminal supporting body  30  and the terminal covering body  50  is restricted, and the entire unit  100  is inserted in the accommodation space  73  (see  FIG. 2 ). Further, the male tabs  21  of the male terminal fittings  20  project into the receptacle  72  from the respective tab insertion openings  62  and the terminal covering body  50  is held at an exposed position for exposing the male tabs  21  with respect to the terminal supporting body  30 . 
     Further, in the relatively sliding process of the terminal supporting body  30 , the housing lock  32  of the terminal supporting body  30  presses, deflects and deforms the locking lance  74 . However, as the terminal supporting body  30  becomes inserted properly into the accommodation space  73 , the locking lance  74  resiliently returns and is locked to the housing lock  32  from behind. In this way, the terminal supporting body  30  or, eventually, the unit  100  is retained and accommodated in the accommodation space  73  of the housing  70 . Further, the forward movement restricting portions  33  of the terminal supporting body  30  contact stoppers  86  (see  FIG. 16 ) in the accommodating portion  71  to restrict movement of the terminal supporting body  30  toward the receptacle  72 . 
     Thereafter, the unillustrated mating female connector is fit into the fitting space  84  of the receptacle  72 . When the connectors are connected properly, the male tabs  21  projecting into the fitting space  84  of the receptacle  72  are inserted into boxes of unillustrated mating female terminal fittings and the male and female terminal fittings are connected electrically. 
     The unit  100  may have to be taken out from the accommodation space  73  of the housing  70  for maintenance or other reason. This removal is achieved by using a tool to deflect the locking lance  74  in a direction to unlock the housing lock  32 , and, in that state, the cable  90  is pulled rearward. Then, the respective hooked portions  53  of the terminal covering body  50  interfere with the hooking bodies  79  of the respective hooks  77 , and that interference resistance exceeds the locking force between the restricting portions  41  and the respective interfering portions  56  caused by the pulling of the cable  90 . Thus, the restricting portions  41  and the respective interfering portions  56  are unlocked from each other and the restricting portions  41  are displaced toward rear parts of the respective through grooves  54 . In the process of pulling the cable  90  in this way, the terminal supporting body  30  and the terminal covering body  50  relatively slide and the terminal covering body  50  is displaced automaticall from the exposed position to the protection position. 
     When the cable  90  further continues to be pulled, the hooking portions  77  are pressed by the respective hooked portions  53  to be deflected and deformed, and a receding displacement of the terminal covering body  50  in the accommodation space  73  is allowed (see  FIG. 3 ). Thereafter, when the unit  100  is taken out from the housing  70 , the terminal covering body  50  is at the protection position and protects the male tabs  21 . 
     As described above, according to this embodiment, when a force of the certain magnitude or higher is applied to the terminal supporting body  30  with the unit  100  inserted in the accommodation space  73  of the accommodating portion  71  and the terminal covering body  50  at the protection position stopped in contact with the contact stop portion  75 , the terminal supporting body  30  relatively slides, the terminal covering body  50  is displaced to the exposed position and the male tabs  21  are exposed to the fitting space  84  of the receptacle  72 . Thus, the male tabs  21  are electrically connectable to the mating female terminal fittings. Here, in a state before the unit  100  is accommodated into the accommodating portion  71 , the male tabs  21  are protected by the terminal covering body  50  at the protection position and avoid fracture or breakage. 
     As described above, an operation of sliding the terminal supporting body  30  and the terminal covering body  50  is linked with an operation of accommodating the terminal supporting body  30  and the terminal covering body  50  into the accommodating portion  71 , and the terminal covering body  50  can be displaced automatically to the exposed position. Thus, a special tool for displacing the terminal covering body  50  to the exposed position is unnecessary, working man-hours are not increased and assembling efficiency can be improved. 
     Further, the terminal covering body  50  is formed with the deflectable and deformable semi-locking portions  55 , and the terminal supporting body  30  is provided with the restricting portions  41  configured to be locked resiliently to the semi-locking portions  55  at the protection position and restrict a relative displacement of the terminal covering body  50  to the exposed position unless the force of the certain magnitude or higher is applied to the terminal supporting body  30 . Thus, the terminal covering body  50  can be prevented from being easily displaced to the exposed position in the state before the unit  100  is accommodated into the accommodating portion  71 . 
     Further, the accommodating portion  71  of the housing  70  is provided with the deflectable and deformable locking lance  74  configured to retain and lock the properly accommodated terminal supporting body  30 . Thus, the terminal supporting body  30  cannot escape from the accommodating portion  71 . Particularly, the male terminal fittings  20  are supported in the terminal supporting body  30  and are locked by the locking lance  74 . Thus, a pulling force applied to the cable  90  that is connected to the male terminal fittings  20  is resisted. 
     Further, the accommodating portion  71  is provided with the hooks  77  that are configured to resiliently contact the terminal covering body  50  in a withdrawing direction so that the terminal covering body  50  can be slid to the protection position. The terminal covering body  50  that is displaced to the protection position can be taken out when a force in the withdrawing direction is applied to the terminal supporting body  30  so that the terminal supporting body  30  escapes rearward. The terminal covering body  50  is displaced automatically to the protection position when the unit  100  is taken out from the housing  70 . Thus, it is not necessary to perform a separate operation of returning the terminal covering body  50  to the protection position to protect the respective male tabs  21  after the unit  100  is taken out from the housing  70 , and work efficiency can be improved. 
     Other embodiments are briefly described below. 
     In the above embodiment, the terminal supporting body is arranged on an upper side and the terminal covering body is arranged on a lower side with respect to the housing. Conversely, the terminal supporting body may be arranged on the lower side and the terminal covering body may be arranged on the upper side. Further, the terminal supporting body and the terminal covering body may be arranged on both left and right sides of the housing. 
     In the above embodiment, the terminal covering body is provided with the semi-locking portions and the terminal supporting body is provided with the restricting portions. Conversely, the terminal supporting body may be provided with the semi-locking portions and the terminal covering body may be provided with the restricting portions. 
     In the above embodiment, the hooks are deflectable in the accommodating portion and the hooked portions are fixed to the terminal covering body. Conversely, the hooks may be fixed to the accommodating portion and the hooked portions may be deflectable in the terminal covering body. 
     The contact stop may be provided on an opening edge part of the accommodation space in the rear surface of the accommodating portion, and the rear end part of the terminal covering body may be stopped in contact with the opening edge part (contact stop portion) on the rear surface of the accommodating portion. 
     The deflectable locking lance provided in the accommodating portion may retain and lock at least one of the terminal supporting body and the terminal covering body and does not necessarily retain and lock the terminal supporting body. 
     Any special lock structure such as the semi-locking portions may not be provided between the terminal supporting body and the terminal covering body and relative sliding of the both bodies may be temporarily restricted only by frictional resistance. 
     LIST OF REFERENCE SIGNS 
       10  . . . connector 
       20  . . . male terminal fitting 
       21  . . . male tab 
       30  . . . terminal supporting body 
       41  . . . restricting portion 
       50  . . . terminal covering body 
       55  . . . semi-locking portion 
       70  . . . housing 
       71  . . . accommodating portion 
       72  . . . receptacle 
       74  . . . locking lance 
       75  . . . contact stop 
       77  . . . hook 
       90  . . . cable