Patent Publication Number: US-2022224049-A1

Title: Wire harness

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2021-001762 filed in Japan on Jan. 8, 2021. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a wire harness. 
     2. Description of the Related Art 
     Conventionally, a wire harness configured as an electric wire with a connector in which a connector is assembled to a terminal of an electric wire has been known. In the wire harness, the connector is fitted and connected to a terminal block or a mating connector. Consequently, a terminal metal fitting is fitted and connected to a mating terminal metal fitting such as a terminal block. In the connector, the terminal metal fitting is electrically connected to the terminal of the electric wire in a housing, and the electric wire is drawn out to the outside of the housing. As the connector, a connector in which the fitting connection direction and the electric wire drawing direction are intersected with each other has been known. For example, such a wire harness is disclosed in Japanese Patent Application Laid-open No. 2014-107152 and Japanese Patent Application Laid-open No. 2016-192359. 
     For example, in a conventional wire harness, the fitting connection direction and the electric wire drawing direction are intersected with each other, by interposing a flexible relay conductor between the electric wire and the terminal metal fitting, and by distributing dividing the terminal metal fitting and the electric wire into the fitting connection direction and the electric wire drawing direction using the relay conductor. Consequently, in the wire harness, not only the cost for the relay conductor itself, but also man-hour and cost for assembling the relay conductor to the electric wire and the terminal metal fitting are required. 
     Note that Japanese Patent Application Laid-open No. 2005-251608 discloses an electric wire including a core wire having a plurality of twisted wires obtained by twisting a plurality of element wires, and in which the twisted wires that wrap a center twisted wire in the peripheral direction are twisted in the same twisting direction as that of the center twisted wire. In the electric wire, to prevent the element wires in the center twisted wire from being untwisted, the twisting direction of each of the wires is in the same direction. Moreover, Japanese Patent Application Laid-open No. 2005-259583 discloses an electric wire including a core wire having a plurality of twisted wires obtained by twisting a plurality of element wires in the same twisting direction, in which the twisted wires in an intermediate layer that wrap the center twisted wire in the peripheral direction are twisted in the opposite direction from the twisting direction of the twisted wires, and in which the twisted wires in an outer layer that wrap the twisted wires in the intermediate layer in the peripheral direction are twisted in the opposite direction from the twisting direction of the twisted wires. In the electric wire, a structure in which the wires are twisted in such a twisting direction is adopted to increase the flexibility of the core wire. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a wire harness in which the fitting connection direction and the electric wire drawing direction are intersected with each other while reducing the number of components. 
     In order to achieve the above mentioned object, a wire harness according to one aspect of the present invention includes an electric wire including a core wire including a plurality of twisted wires obtained by twisting a plurality of element wires, the twisted wires having the element wires twisted in a same twisting direction, the twisted wires being twisted in a same twisting direction as the twisting direction in each of the twisted wires, and a coating that wraps the core wire while exposing a core wire exposed part at a terminal of the electric wire; and a connector assembled to the terminal of the electric wire, wherein the connector includes a terminal metal fitting having a terminal connection part configured to be fitted and connected to a mating terminal connection part in a fitting connection direction, and configured to maintain a connected state between contact points by a spring force acts between the mating terminal connection part and the terminal connection part, and an electric wire connection part physically and electrically connected to the core wire exposed part an axial direction of which is in the fitting connection direction, and an insulating housing that stores the terminal of the electric wire and the terminal metal fitting in a storage chamber inside, and that draws out the electric wire to outside from a drawing port of the storage chamber, in an intersecting direction with respect to the fitting connection direction, the terminal of the electric wire includes a bent part in which a coated terminal part of the coating after being drawn out from the electric wire connection part is bent with the core wire, and the terminal of the electric wire is drawn out to outside of the housing from the drawing port over the bent part, and the electric wire is formed such that a returning force to a shape before being bent according to a bending shape of the bent part becomes smaller than an absolute value of the spring force. 
     According to another aspect of the present invention, in the wire harness, it is preferable that the electric wire is formed such that when an applied load obtained by supplying an allowable external input to the connector is applied to the core wire exposed part, the returning force becomes equal to or less than an absolute value of a subtraction value of the spring force and the applied load. 
     According to still another aspect of the present invention, in the wire harness, it is preferable that the electric wire includes the coating having flexibility capable of generating the returning force with the core wire. 
     According to still another aspect of the present invention, in the wire harness, it is preferable that the core wire includes a center twisted wire formed of one piece of the twisted wires placed in a center, an intermediate layer in which the twisted wires are arranged around an axis of the center twisted wire around the center twisted wire, and are twisted in the same twisting direction as the twisting direction in each of the twisted wires, and an outer layer in which the twisted wires are arranged around the axis of the center twisted wire around the intermediate layer, and are twisted in the same twisting direction as the twisting direction in each of the twisted wires. 
     The above and other objects, features, advantages and technical and industrial significance of this invention will be better understood by reading the following detailed description of presently preferred embodiments of the invention, when considered in connection with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view illustrating a wire harness of an embodiment; 
         FIG. 2  is a perspective view of the wire harness of the embodiment when viewed from a shield shell side; 
         FIG. 3  is a sectional view cut along a line X-X in  FIG. 1 ; 
         FIG. 4  is an exploded perspective view of the wire harness of the embodiment that is partially disassembled; 
         FIG. 5  is a perspective view for explaining an electric wire; 
         FIG. 6  is a plan view for explaining a twisting direction of a core wire of the electric wire; 
         FIG. 7  is an exploded perspective view illustrating a terminal metal fitting and a spring contact point member; 
         FIG. 8  is an exploded perspective view of a housing; 
         FIG. 9  is an exploded perspective view of the housing when viewed from another angle; and 
         FIG. 10  is a diagram illustrating test results of the returning force of electric wires. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Hereinafter, an embodiment of a wire harness according to the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the invention is not limited to the embodiment. 
     Embodiment 
     An embodiment of a wire harness according to the present invention will be described with reference to  FIG. 1  to  FIG. 10 . 
     A reference numeral WH in  FIG. 1  to  FIG. 4  indicates a wire harness of the present embodiment. The wire harness WH is what is called an electric wire with a connector, and includes an electric wire We and a connector  1  assembled to a terminal of the electric wire We. The wire harness WH illustrated in this example includes the connector  1  with a plurality of poles, and has the number of electric wires We according to the number of poles. In this example, the wire harness WH includes two electric wires We and the connector  1  with two poles. 
     The connector  1  is electrically connected to a mating terminal metal fitting  510  ( FIG. 3 ), when the connector  1  is inserted into and fitted to a mating fitting part (not illustrated) from a tip end. For example, the connector  1  illustrated in this example is configured such that a fitting part  20   a  of a housing  20 , which will be described below, is inserted into and fitted to the inside of a hole-shaped mating fitting part having an inner peripheral wall surface. In the connector  1 , the fitting part  20   a  is inserted into and removed from the hole-shaped mating fitting part in a hole axis direction of the mating fitting part. For example, the mating fitting part is formed such that an orthogonal cross section of the mating fitting part with respect to the hole axis direction is formed in a rectangular shape. The mating fitting part may also be formed in a tubular shape, and the fitting part  20   a  may be inserted into and fitted to the inner space of the tubular-shaped mating fitting part. 
     For example, by being electrically connected to the mating terminal metal fitting  510  of a mating device (not illustrated), the connector  1  electrically connects between the mating device and a device (not illustrated) at the tip of the electric wire We. The mating device includes a metal casing, and a through hole formed on a wall body of the casing is used as a mating fitting part. Moreover, the mating device includes a terminal block or a mating connector in the casing. The mating terminal metal fitting  510  is provided in the terminal block or the mating connector. Thus, in the connector  1 , the fitting part  20   a  is inserted into and fitted to the inside of the mating fitting part, and is electrically connected to the mating terminal metal fitting  510  of the terminal block or the mating connector in the casing. 
     Hereinafter, when simply referred to as an insertion direction, the insertion direction refers to an insertion direction of the fitting part  20   a  of the connector  1  with respect to the mating fitting part. Moreover, when simply referred to as a removal direction, the removal direction refers to a removal direction of the fitting part  20   a  of the connector  1  with respect to the mating fitting part. Furthermore, when simply referred to as an insertion/removal direction, the insertion/removal direction refers to an insertion/removal direction of the fitting part  20   a  of the connector  1  with respect to the mating fitting part. 
     The electric wire We includes a core wire We 1  serving as a conductor, and coating We 2  that wraps the core wire We 1  while a core wire exposed part We 1   a  of the terminal is exposed ( FIG. 3 ,  FIG. 5 , and  FIG. 6 ). In the electric wire We, by peeling off the coating We 2  of the terminal, the core wire exposed part We 1   a  inside the coating We 2  is exposed. 
     The core wire We 1  includes a plurality of twisted wires Ws obtained by twisting a plurality of element wires We 0  ( FIG. 5 ). In the core wire We 1 , the twisted wires Ws including the element wires We 0  twisted in the same twisting direction, are twisted in the same twisting direction as that in each of the twisted wires Ws ( FIG. 5  and  FIG. 6 ). The core wire We 1  illustrated in this example includes a center twisted wire Ws 1  formed of one piece of the twisted wire Ws placed in the center; an intermediate layer Ws 2  in which the twisted wires Ws are arranged around the axis of the center twisted wire Ws 1  around the center twisted wire Ws 1 , and are twisted in the same twisting direction as that in each of the twisted wires Ws; and an outer layer Ws 3  in which the twisted wires Ws are arranged around the axis of the center twisted wire Ws 1  around the intermediate layer Ws 2 , and are twisted in the same twisting direction as that in each of the twisted wires Ws ( FIG. 5  and  FIG. 6 ). A solid line arrow in  FIG. 6  illustrates the twisting direction of the element wires We 0  in the twisted wire Ws. However, in the present drawing, illustration of the element wires We 0  is omitted. Moreover, a broken line arrow in  FIG. 6  illustrates the twisting direction of each of the twisted wire Ws in the intermediate layer Ws 2 , and the twisting direction of each of the twisted wires Ws in the outer layer Ws 3 . 
     The coating We 2  is formed to have flexibility capable of generating a returning force Fr, which will be described below, with the core wire We 1 . This point will be described below. 
     The connector  1  includes a terminal metal fitting  10 , an insulating housing  20  that stores the electric wire We and the terminal metal fitting  10 , and a conductive shield shell  30  for reducing noise, as connector components ( FIG. 1 ,  FIG. 3 , and  FIG. 4 ). 
     The terminal metal fitting  10  is formed of a conductive material such as metal. For example, the terminal metal fitting  10  is formed into a predetermined shape by performing press molding such as bending and cutting on a metal plate serving as a base material. 
     The terminal metal fitting  10  includes a terminal connection part  11  physically and electrically connected to a mating terminal connection part  511  of the mating terminal metal fitting  510  ( FIG. 1 ,  FIG. 3 , and  FIG. 4 ). The terminal connection part  11  is physically and electrically connected to the mating terminal connection part  511 , when the terminal connection part  11  is fitted and connected to the mating terminal connection part  511  in the fitting connection direction. Moreover, in the terminal connection part  11 , the connected state between the contact points is maintained by a spring force Fs ( FIG. 3 ) acts between the mating terminal connection part  511  and the terminal connection part  11 . One of the terminal connection part  11  and the mating terminal connection part  511  is formed in a female terminal shape, and the other of the terminal connection part  11  and the mating terminal connection part  511  is formed in a male terminal shape. The terminal connection part  11  and the mating terminal connection part  511  are then fitted and connected to each other by inserting and fitting between the fitting part  20   a  and the mating fitting part. The size and direction of the spring force Fs illustrated in  FIG. 3  are merely for convenience of explanation. 
     Hereinafter, when simply referred to as a fitting connection direction, the fitting connection direction refers to a fitting connection direction of the terminal connection part  11  with respect to the mating terminal connection part  511  and a fitting connection direction of the fitting part  20   a  with respect to the mating fitting part (that is, the insertion direction described above). 
     The spring force Fs is generated on the female terminal side. For example, when the terminal connection part  11  is formed in a tubular female terminal shape, the terminal metal fitting may have a spring contact point, and a spring contact point member may be assembled in the tube as another component. In this example, the terminal connection part  11  is formed in a cylindrical-shaped female terminal shape, and a spring contact point member  15  is assembled in the terminal connection part  11  ( FIG. 7 ). 
     In the terminal metal fitting  10 , a tube axis direction of the terminal connection part  11  is the insertion/removal direction. The mating terminal connection part  511  is formed in a shaft-like male terminal shape to be fitted into the terminal connection part  11 . 
     The spring contact point member  15  includes a contact point part  15   a  that comes into contact with a contact point part of the mating terminal connection part  511 , and a spring part  15   b  that is elastically deformable between the terminal connection part  11  and the mating terminal connection part  511 , and that maintains the connected state between the contact point part  15   a  and the contact point part of the mating terminal connection part  511  by the spring force Fs caused by the elastic deformation ( FIG. 7 ). In the spring contact point member  15  illustrated in this example, two arc-shaped base parts  15   c  are disposed in the tube axis direction of the terminal connection part  11  with a gap interposed therebetween, and the two arc-shaped base parts  15   c  are coupled by a plurality of the spring parts  15   b . Each of the spring parts  15   b  is formed in a convex arc shape curving on the tube axis side inside the terminal connection part  11 . In the spring contact point member  15 , the arc-shaped vertex of the spring part  15   b  is used as the contact point part  15   a . Thus, in the spring contact point member  15 , when the mating terminal connection part  511  is fitted into the terminal connection part  11 , the spring part  15   b  in which force is applied to the contact point part  15   a  by the mating terminal connection part  511 , is elastically deformed toward the inner peripheral surface side of the terminal connection part  11 . Consequently, the spring force Fs is applied in the orthogonal direction with respect to the fitting connection direction. 
     Moreover, the terminal metal fitting  10  includes an electric wire connection part  12  physically and electrically connected to the core wire exposed part We 1   a  ( FIG. 3  and  FIG. 4 ). The electric wire connection part  12  is physically and electrically connected to the core wire exposed part We 1   a  the axial direction of which is in the fitting connection direction. For example, the electric wire connection part  12  is physically and electrically connected to the core wire exposed part We 1   a , by being crimped or welded to the core wire exposed part We 1   a . In the electric wire connection part  12  illustrated in this example, two barrel pieces are caulked and crimped to the core wire exposed part We 1   a . The electric wire We is drawn out from the electric wire connection part  12  in the opposite direction from the fitting connection direction (that is, the removal direction). 
     In this manner, the terminal metal fitting  10  is formed in a straight shape such that the tube axis direction (fitting connection direction) of the terminal connection part  11  and the drawing direction of the electric wire We from the electric wire connection part  12  (hereinafter, referred to as an “electric wire drawing direction) are in the same direction. In the connector  1 , the straight-shaped terminal metal fitting  10 , and the terminal of the electric wire We that is bent after being drawn out from the electric wire connection part  12 , are stored in the housing  20  ( FIG. 3  and  FIG. 4 ). Then, in the connector  1 , the electric wire We is drawn out to the outside of the housing  20  ( FIG. 3 ) at a portion over the bending point. The terminal of the electric wire We includes a bent part Web in which a coated terminal part We 2   a  of the coating We 2  after being drawn out from the electric wire connection part  12  is bent with the core wire We 1  ( FIG. 3  and  FIG. 5 ). 
     The connector  1  includes a plurality of sets of combinations of the terminal metal fitting  10  and the electric wire We to be a pair. In this example, there are two sets of combinations ( FIG. 4 ). In the connector  1 , the two terminal metal fittings  10  are disposed side by side in the orthogonal direction with respect to the fitting connection direction. Moreover, in the connector  1 , the two electric wires We are made to run in parallel and arranged in the orthogonal direction. 
     The housing  20  is formed of an insulating material such as synthetic resin. 
     This housing  20  includes the fitting part  20   a  to be inserted into and fitted to the mating fitting part ( FIG. 1  to  FIG. 4 ,  FIG. 8 , and  FIG. 9 ). The fitting part  20   a  illustrated in this example is inserted into and fitted to the inside of the hole-shaped mating fitting part in the insertion direction, and is pulled out from the inside of the mating fitting part in the removal direction, which is the opposite direction from the insertion direction. The fitting part  20   a  is formed in a tubular shape such that the tube axis direction thereof is the insertion/removal direction (insertion direction and removal direction) of the fitting part  20   a  with respect to the mating fitting part. The fitting part  20   a  illustrated in this example is formed in a rectangular tube shape. 
     As a connector component, the connector  1  includes an annular seal member  41  for water proofing and dust proofing between the fitting part  20   a  and the mating fitting part, by filling an annular gap therebetween ( FIG. 1  to  FIG. 4 ). The seal member  41  is formed of an elastic member such as synthetic rubber. The seal member  41  is then assembled to the outer peripheral surface of the fitting part  20   a.    
     Moreover, the housing  20  includes a collar-shaped flange part  20   b  on the outside of the outer peripheral surface of the fitting part  20   a  ( FIG. 1 ,  FIG. 3 ,  FIG. 8 , and  FIG. 9 ). When the fitting part  20   a  and the mating fitting part are in a fitting completed state, the flange part  20   b  has an opposite wall surface disposed opposite to a wall surface on the periphery of the mating fitting part with a gap interposed therebetween. As a connector component, the connector  1  includes an annular seal member  42  ( FIG. 1  and  FIG. 3 ) for water proofing and dust proofing between the opposite wall surface of the flange part  20   b  and the wall surface on the periphery of the mating fitting part, by filling a gap therebetween. The seal member  42  is formed of an elastic member such as synthetic rubber. The seal member  42  is fitted into an annular groove formed on the opposite wall surface of the flange part  20   b  in a protruding manner. 
     In the housing  20 , the terminal metal fitting  10  is stored inside the fitting part  20   a.    
     The housing  20  includes a storage chamber  20   c  that stores the terminal of the electric wire We and the terminal metal fitting  10  inside, and a drawing port  20   d  through which the electric wire We is drawn out to the outside from the storage chamber  20   c  in the intersecting direction with respect to the fitting connection direction ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). That is, the housing  20  stores the terminal of the electric wire We and the terminal metal fitting  10  in the storage chamber  20   c  inside, and draws out the electric wire We to the outside from the drawing port  20   d  of the storage chamber  20   c  in the intersecting direction with respect to the fitting connection direction. As described above, in the terminal of the electric wire We, the coated terminal part We 2   a  is bent with the core wire We 1 . Consequently, the bent tip of the terminal of the electric wire We is drawn out to the outside of the housing  20  from the drawing port  20   d.    
     The storage chamber  20   c  includes a terminal storage part  20   c   1  that stores the terminal metal fitting  10 , and an electric wire storage part  20   2  that stores the terminal of the electric wire We drawn out from the electric wire connection part  12  of the terminal metal fitting  10  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). In the housing  20 , space inside the tubular fitting part  20   a  is used as the terminal storage part  20   c   1 . For example, the terminal storage part  20   c   1  is divided into a plurality of chambers for each terminal metal fitting  10  with a partition wall and the like. Moreover, the electric wire storage part  20   c   2  is formed such that the terminal of the electric wire We is stored while the terminal of the electric wire We is made to run in the intersecting direction with respect to the fitting connection direction. For example, the electric wire storage part  20   c   2  is divided into a plurality of chambers for each electric wire We with a partition wall and the like. 
     In the housing  20  illustrated in this example, the terminal of the electric wire We that is bent at a right angle after being drawn out from the electric wire connection part  12  of the straight-shaped terminal metal fitting  10  is stored in the electric wire storage part  20   c   2 . The electric wire We is then drawn out to the outside from the drawing port  20   d  in the orthogonal direction with respect to the fitting connection direction. Consequently, the electric wire storage part  20   c   2  is formed in a shape capable of storing the terminal of the electric wire We while the terminal of the electric wire We is made to run in the orthogonal direction with respect to the fitting connection direction, and capable of drawing out the electric wire We to the outside from the drawing port  20   d  as it is. 
     As a connector component, the connector  1  includes a terminal holding member  50  stored in the terminal storage part  20   c   1  of the storage chamber  20   c , and that holds the terminal metal fitting  10  in the terminal storage part  20   c   1  ( FIG. 1  to  FIG. 4 ). The terminal holding member  50  is formed of an insulating material such as synthetic resin. The terminal holding member  50  stores and holds the terminal metal fitting  10  inside such that the mating terminal connection part  511  can be inserted into and removed from the terminal metal fitting  10 . The terminal holding member  50  is also held by the inner peripheral surface of the fitting part  20   a.    
     The terminal holding member  50  may also be provided for each terminal metal fitting  10 , or may also be provided as one component capable of holding a plurality of the terminal metal fittings  10 . The terminal holding member  50  illustrated in this example is provided for each terminal metal fitting  10 . 
     The terminal holding member  50  includes a cylindrical-shaped first tubular part  51  that stores the terminal connection part  11 , and a rectangular tube-shaped second tubular part  52  that stores the electric wire connection part  12  ( FIG. 3  and  FIG. 4 ). The size of the second tubular part  52  is larger than the first tubular part  51  such that the second tubular part  52  is bulged outward in the radial direction. 
     The terminal holding member  50  is inserted into the storage chamber  20   c  toward the insertion direction side, stored in the terminal storage part  20   c   1 , and is held by the terminal storage part  20   c   1 . The housing  20  includes a first engagement part  20   e  ( FIG. 3  and  FIG. 9 ) that is disposed on the insertion direction side of the terminal holding member  50  in the terminal storage part  20   c   1 , and that engages the relative movement of the terminal holding member  50  toward the insertion direction side. The housing  20  also includes a second engagement part  20   f  ( FIG. 3 ) that is disposed on the removal direction side of the terminal holding member  50  in the terminal storage part  20   c   1 , and that engages the relative movement of the terminal holding member  50  toward the removal direction side. 
     The first engagement part  20   e  is disposed opposite to the second tubular part  52  of the terminal holding member  50  on the insertion direction side. In this example, the outer wall surface on the insertion direction side of the second tubular part  52  serves as a first part to be engaged  52   a . By engaging the first part to be engaged  52   a  with the first engagement part  20   e , the terminal holding member  50  is prevented from coming out from the terminal storage part  20   c   1  toward the insertion direction side ( FIG. 3 ). The first tubular part  51  projects from the first part to be engaged  52   a . The first engagement part  20   e  illustrated in this example is formed as a wall body projecting from the inner peripheral surface of the fitting part  20   a . The first engagement part  20   e  illustrated in this example may also be used to engage the first part to be engaged  52   a  of each terminal holding member  50 , or may be provided for each terminal holding member  50 . Moreover, the first engagement part  20   e  illustrated in this example is provided on a housing main body  21 , which will be described below, including the fitting part  20   a.    
     The second engagement part  20   f  is disposed opposite to a second part to be engaged  53   a  of the terminal holding member  50  on the removal direction side ( FIG. 3 ). In this example, a lock mechanism that allows the terminal holding member  50  to be inserted into the terminal storage part  20   c   1 , and that prevents the terminal holding member  50  from coming out from the terminal storage part  20   c   1  toward the removal direction side, is provided between the fitting part  20   a  of the housing  20  and the terminal holding member  50 . The lock mechanism includes the claw-shaped second engagement part  20   f  projecting from the inner peripheral surface of the fitting part  20   a ; the claw-shaped second part to be engaged  53   a  that is provided on the terminal holding member  50  and that is disposed opposite to the second engagement part  20   f  on the removal direction side, at the storage completed position of the terminal holding member  50  in the terminal storage part  20   c   1 ; and a cantilevered flexible piece part  53   b  having flexibility in which the second part to be engaged  53   a  is at the free end, and the fixed end is provided on the second tubular part  52  of the terminal holding member  50  ( FIG. 3 ). The flexible piece part  53   b  is elastically deformable such that when the terminal holding member  50  is inserted into the terminal storage part  20   c   1 , the second part to be engaged  53   a  can climb over the second engagement part  20   f , and after the second part to be engaged  53   a  has climbed over the second engagement part  20   f , the second engagement part  20   f  and the second part to be engaged  53   a  can be disposed opposite to each other in the insertion/removal direction. Consequently, with the terminal holding member  50 , by using the lock mechanism, the terminal holding member  50  can be inserted into the terminal storage part  20   c   1 , and after the terminal holding member  50  is inserted into the terminal storage part  20   c   1 , the terminal holding member  50  is prevented from coming out from the terminal storage part  20   c   1  toward the removal direction side. 
     In the connector  1 , the first engagement part  20   e  is provided for each terminal holding member  50 , and two sets of pairs of the second engagement part  20   f  and the second part to be engaged  53   a  are provided. 
     Moreover, as a connector component, the connector  1  includes a seal member (hereinafter, referred to as a “terminal side seal member”)  43  for water proofing and dust proofing between the inner peripheral wall of the storage chamber  20   c  and the electric wire We, by filling a gap therebetween ( FIG. 3  and  FIG. 4 ). The terminal side seal member  43  is formed of an elastic member such as synthetic rubber. 
     The terminal side seal member  43  may be provided for each electric wire We, and may also fill a gap between the inner peripheral wall of the storage chamber  20   c  and a plurality of the electric wires We. The terminal side seal member  43  illustrated in this example fills a gap between the inner peripheral wall of the electric wire storage part  20   c   2  in the storage chamber  20   c  and the two electric wires We. 
     Furthermore, in this example, the electric wire storage part  20   c   2  includes a space part  20   c   21  formed in an oval shape, and the terminal side seal member  43  is disposed in the space part  20   c   21  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). Thus, the terminal side seal member  43  illustrated in this example is formed in an oval shape, and includes a circular through hole  43   a  for each electric wire We ( FIG. 4 ). Then, in the terminal side seal member  43 , an annular lip (hereinafter, referred to as an “outer peripheral lip”) is formed on the outer peripheral surface in a coaxial manner, and an annular lip (hereinafter, referred to as an “inner peripheral lip”) is formed on the inner peripheral surface of the through hole  43   a  in a coaxial manner. The terminal side seal member  43  brings the outer peripheral lip into close contact with the inner peripheral wall of the oval space part  20   c   21  in the electric wire storage part  20   c   2  and brings the inner peripheral lip into close contact with the outer peripheral surface of the electric wire We. 
     Furthermore, the connector  1  includes an electric wire holding tool (hereinafter, referred to as a “first electric wire holding tool”)  60  that holds the electric wire We in the storage chamber  20   c  as a connector component ( FIG. 3  and  FIG. 4 ). The first electric wire holding tool  60  is formed of an insulating material such as synthetic resin. The first electric wire holding tool  60  may also be provided for each electric wire We, or may be provided as one component capable of holding the electric wires We. The first electric wire holding tool  60  illustrated in this example is provided as one component capable of holding the electric wires We (in this example, two electric wires We). Moreover, the first electric wire holding tool  60  illustrated in this example holds the electric wire We that is bent after being drawn out from the electric wire connection part  12  of the terminal metal fitting  10 , in the electric wire storage part  20   c   2  of the storage chamber  20   c . The first electric wire holding tool  60  includes a column-shaped electric wire insertion part  60   a  through which the column-shaped electric wire We is inserted and that holds the electric wire We ( FIG. 3 ). 
     The first electric wire holding tool  60  illustrated in this example includes a first electric wire holding member  61  and a second electric wire holding member  62  that hold the electric wire We therebetween ( FIG. 3  and  FIG. 4 ). The first electric wire holding member  61  and the second electric wire holding member  62  hold the electric wire We therebetween while the first electric wire holding member  61  and the second electric wire holding member  62  are assembled to each other. Thus, the first electric wire holding tool  60  includes a lock mechanism (for example, a lock mechanism using claw parts or the like to be hooked to each other) that maintains the assembled state of the first electric wire holding member  61  and the second electric wire holding member  62  therebetween. 
     The housing  20  includes a holding part  20   g  that holds the first electric wire holding tool  60  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). At least one holding part  20   g  is provided in the housing  20 . Moreover, the first electric wire holding tool  60  is placed closer to the terminal metal fitting  10  than the terminal side seal member  43  is ( FIG. 3 ). 
     More specifically, the housing  20  illustrated in this example includes a housing main body  21 , a cover member  22 , and a front holder  23  ( FIG. 3 ,  FIG. 4 ,  FIG. 8 , and  FIG. 9 ). 
     The housing main body  21  includes a first space part  21   a  that stores the terminal of the electric wire We and the terminal metal fitting  10 , and a first opening part  21   b  through which the terminal of the electric wire We and the terminal metal fitting  10  are inserted into the first space part  21   a  ( FIG. 8 ). For example, the first space part  21   a  is divided into a plurality of chambers for each combination of the electric wire We and the terminal metal fitting  10  with the partition wall and the like illustrated above. Moreover, in the housing main body  21 , a semi-circular opening  21   a   1  through which the electric wire We is drawn out from the first space part  21   a  is formed ( FIG. 8 ). The opening  21   a   1  is provided for each electric wire We. Moreover, in the housing main body  21 , a first seal storage part  21   c  that stores the terminal side seal member  43  is provided ( FIG. 8 ). Furthermore, in the housing main body  21 , the fitting part  20   a , the flange part  20   b , the first engagement part  20   e , and the second engagement part  20   f  described above are formed ( FIG. 8  and  FIG. 9 ). 
     The cover member  22  includes a second space part  22   a  that stores the terminal of the electric wire We and the terminal metal fitting  10 , and a second opening part  22   b  through which the terminal of the electric wire We and the terminal metal fitting  10  are inserted into the second space part  22   a  ( FIG. 9 ). For example, the second space part  22   a  is divided into a plurality of chambers for each electric wire We with the partition wall and the like described above. Moreover, in the cover member  22 , a semi-circular opening  22   a   1  through which the electric wire We is drawn out from the second space part  22   a  is formed ( FIG. 9 ). The opening  22   a   1  is provided for each electric wire We. Furthermore, in the cover member  22 , a second seal storage part  22   c  that stores the terminal side seal member  43  is provided ( FIG. 9 ). 
     In the housing  20 , when the housing main body  21  and the cover member  22  are assembled to each other, the first opening part  21   b  and the second opening part  22   b  are fitted to each other, and the storage chamber  20   c  made of the first space part  21   a  and the second space part  22   a  is formed. Moreover, in the housing  20 , when the housing main body  21  and the cover member  22  are assembled to each other, the drawing port  20   d  made of the openings  21   a , and  22   a   1  is formed. Furthermore, in the housing  20 , when the housing main body  21  and the cover member  22  are assembled to each other, the space part  20   c   21  of the electric wire storage part  20   c   2  made of the first seal storage part  21   c  and the second seal storage part  22   c  is formed. 
     In the housing  20 , the holding part  20   g  for the first electric wire holding tool  60  is provided on at least one of the housing main body  21  and the cover member  22 . In this example, the holding part  20   g  is provided on the housing main body  21  and the cover member  22  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). The holding part  20   g  of the housing main body  21  is a space part in which the first electric wire holding member  61  is stored, and holds the first electric wire holding member  61  by suppressing the relative movement of the first electric wire holding member  61  in the space part. The holding part  20   g  in the housing main body  21  illustrated in this example is formed as a chamber capable of surrounding the outer wall of the first electric wire holding member  61  without blocking a space part  65 . The holding part  20   g  of the cover member  22  is a space part in which the second electric wire holding member  62  is stored, and holds the second electric wire holding member  62  by suppressing the relative movement of the second electric wire holding member  62  in the space part. The holding part  20   g  of the cover member  22  illustrated in this example is formed as a chamber capable of surrounding the outer wall of the second electric wire holding member  62  without blocking the space part  65 . 
     The housing  20  also includes a lock mechanism (hereinafter, referred to as a “cover lock mechanism”)  24  that maintains the assembled state of the housing main body  21  and the cover member  22  that are assembled to each other ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). In the housing  20 , a plurality of the cover lock mechanisms  24  are provided on each outer peripheral wall between the housing main body  21  and the cover member  22 . 
     Each of the cover lock mechanisms  24  includes a first engagement body  24   a  provided on the housing main body  21 , and a second engagement body  24   b  that is provided on the cover member  22 , and that, when the housing main body  21  and the cover member  22  are in an assembled state, engages the movement in the reverse direction with respect to the assembly direction of the housing main body  21  and the cover member  22 , between the first engagement body  24   a  and the second engagement body  24   b  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). 
     The first engagement body  24   a  is formed as a claw-shaped projection body projecting from the outer peripheral wall of the housing main body  21  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). On the other hand, the second engagement body  24   b  includes a piece-shaped second engagement part  24   b   1  that, when the housing main body  21  and the cover member  22  are in an assembled state, engages the movement in the reverse direction with respect to the assembly direction of the housing main body  21  and the cover member  22 , between the claw-shaped first engagement body  24   a  and the second engagement part  24   b   1 . The second engagement body  24   b  also includes two cantilever flexible piece parts  24   b   2  having flexibility, in which the end part of the second engagement part  24   b   1  is coupled at the free end side, and the fixed end is provided on the cover member  22  ( FIG. 3 ,  FIG. 8 , and  FIG. 9 ). Each of the flexible piece parts  24   b   2  is elastically deformable such that, when the housing main body  21  and the cover member  22  are assembled to each other, the second engagement part  24   b   1  can climb over the first engagement body  24   a , and after the second engagement part  24   b   1  has climbed over the first engagement body  24   a , the first engagement body  24   a  and the second engagement part  24   b   1  can be disposed opposite to each other. 
     Moreover, as a connector component, the housing  20  includes a seal member (hereinafter, referred to as a “cover seal member”)  44  for water proofing and dust proofing between the assembled housing main body  21  and the cover member  22  such that water and dust do not enter therebetween ( FIG. 3  and  FIG. 4 ). The cover seal member  44  is formed of an elastic member such as synthetic rubber. The cover seal member  44  illustrated in this example is formed in a rectangular annular shape, and is held between the housing main body  21  and the cover member  22 . In the connector  1 , the cover seal member  44  and the terminal side seal member  43  described above are formed as one integral component ( FIG. 4 ). 
     The front holder  23  is formed in a rectangular tube shape that wraps the outer peripheral surface of the fitting part  20   a  of the housing main body  21 , and is fitted to the fitting part  20   a . The housing  20  includes a lock mechanism (hereinafter, referred to as a “holder lock mechanism”)  25  that maintains the assembled state of the housing main body  21  and the front holder  23  that are assembled to each other ( FIG. 8  and  FIG. 9 ). In the housing  20 , a plurality of the holder lock mechanisms  25  are provided between the inner peripheral surface of the fitting part  20   a  and the front holder  23 . 
     Each of the holder lock mechanism  25  includes a first engagement body  25   a  provided on the inner peripheral surface of the fitting part  20   a  of the housing main body  21 , and a second engagement body  25   b  that is provided on the front holder  23  in a state that the second engagement body  25   b  is disposed opposite to the inner peripheral surface of the fitting part  20   a , and that, when the fitting part  20   a  and the front holder  23  are in an assembled state, engages the movement in the reverse direction with respect to the assembly direction of the fitting part  20   a  and the front holder  23 , between the first engagement body  25   a  and the second engagement body  25   b  ( FIG. 8  and  FIG. 9 ). 
     The first engagement body  25   a  is formed as a claw-shaped projection body projecting from the inner peripheral surface of the fitting part  20   a  ( FIG. 9 ). On the other hand, the second engagement body  25   b  includes a piece-shaped second engagement part  25   b   1  that, when the fitting part  20   a  and the front holder  23  are in an assembled state, engages the movement in the reverse direction with respect to the assembly direction of the fitting part  20   a  and the front holder  23 , between the claw-shaped first engagement body  25   a  and the second engagement part  25   b   1 . The second engagement body  25   b  also includes two cantilevered flexible piece parts  25   b   2  having flexibility in which the end part of the second engagement part  25   b   1  is coupled at the free end side, and the fixed end is provided on the front holder  23  ( FIG. 8  and  FIG. 9 ). Each of the flexible piece parts  25   b   2  is elastically deformable such that, when the fitting part  20   a  and the front holder  23  are assembled to each other, the second engagement part  25   b   1  can climb over the first engagement body  25   a , and after the second engagement part  25   b   1  has climbed over the first engagement body  25   a , the first engagement body  25   a  and the second engagement part  25   b   1  can be disposed opposite to each other. 
     In the connector  1 , the terminal of the electric wire We is bent and stored in the storage chamber  20   c  of the housing  20 . Thus, on the terminal of the electric wire We, returning force Fr to the shape before being bent is generated according to the bending shape of the bent part Web ( FIG. 3 ). In the connector  1 , the returning force Fr is transmitted to the terminal metal fitting  10 . For example, in the connector  1 , the electric wire We is held by the terminal side seal member  43  and the first electric wire holding tool  60  at a side opposite to the terminal metal fitting  10  side when viewed from the bent part Web. Consequently, the entire returning force Fr generated on the terminal of the electric wire We is transmitted to the terminal metal fitting  10 . Then, in the connector  1 , the returning force Fr is transmitted to the surrounding connector components (housing  20 , terminal holding member  50 , and the like) via the terminal metal fitting  10 . In general, in the connector  1 , the connector components each have a dimensional tolerance, and looseness between the connector components is allowed within a range of the dimensional tolerance. Consequently, in the connector  1 , when the returning force Fr caused by the bending of the terminal of the electric wire We is greater than the spring force Fs between the terminal connection part  11  and the mating terminal connection part  511 , load to be applied between the contact point part (contact point part  15   a  of the spring contact point member  15 ) of the terminal metal fitting  10  and the contact point part of the mating terminal connection part  511  may be reduced. The size and direction of the returning force Fr illustrated in  FIG. 3  are merely for convenience of explanation. 
     Hence, the electric wire We used for the connector  1  is formed such that the returning force Fr to the shape before being bent according to the bending shape of the bent part Web is made smaller than the absolute value of the spring force Fs (Fr&lt;|Fs|). Accordingly, in the wire harness WH, it is possible to apply the spring force of the difference (|Fs−Fr|) between the terminal connection part  11  and the mating terminal connection part  511 . Consequently, in the wire harness WH, it is possible to suppress a change in the load to be applied between the contact point part (contact point part  15   a  of the spring contact point member  15 ) of the terminal metal fitting  10  and the contact point part of the mating terminal connection part  511 . Hence, it is possible to ensure the quality of conduction between the contact points. 
     More specifically, by taking into account the looseness of the connector components, the electric wire We is formed such that when an applied load Fw, which is obtained when an allowable external input is supplied to the connector  1 , is applied to the core wire exposed part We 1   a  ( FIG. 3 ), the returning force Fr becomes equal to or less than the absolute value of a subtraction value of the spring force Fs and the applied load Fw (Fr≤|Fs−Fw|). For example, the allowable external input is the maximum value required to design a vehicle, in the force supplied to the connector  1  from the outside by the road surface input or acceleration and deceleration when the vehicle is traveling. Moreover, the applied load Fw is force (load) applied to the core wire exposed part We 1   a , when the allowable external input is supplied to the connector  1  in a state when the looseness of the connector components is at the maximum (a state when the worst values of dimensional tolerances of the connector components are accumulated). Accordingly, in the wire harness WH, even if the applied load Fw due to the looseness of the connector components is applied to the electric wire We, it is possible to suppress a change in the load to be applied between the contact point part (contact point part  15   a  of the spring contact point member  15 ) of the terminal metal fitting  10  and the contact point part of the mating terminal connection part  511 , and ensure the quality of conduction between the contact points. The size and direction of the applied load Fw illustrated in  FIG. 3  are merely for convenience of explanation. 
     Moreover, in the wire harness WH, the electric wire We is formed such that the returning force Fr becomes smaller than the absolute value of the subtraction value of the spring force Fs and the applied load Fw. Hence, it is possible to apply the spring force of the difference (|Fs−Fr−Fw|) between the terminal connection part  11  and the mating terminal connection part  511 . Consequently, in the wire harness WH, the vibration can be absorbed between the terminal connection part  11  and the mating terminal connection part  511  when an external input (vibration) is applied. Hence, it is possible to ensure the quality of conduction between the contact points, when an external input (vibration) is applied. 
     In this example, to create the returning force Fr as described above, the electric wire We uses the core wire We 1  in which the twisted wires Ws including the element wires We 0  twisted in the same twisting direction, are twisted in the same twisting direction as that in each of the twisted wires Ws. The strength of the core wire We 1  becomes lower than a core wire that includes twisted wires Ws having the element wires We 0  twisted in different direction from each other, or a core wire in which the twisting direction of the element wires We 0  and the twisting direction of the twisted wires Ws are in the opposite directions. Consequently, it is possible to reduce the returning force caused by bending. 
     Furthermore, in the electric wire We, the coated terminal part We 2   a  is bent with the core wire We 1 . Consequently, the electric wire We is formed to have flexibility capable of generating the returning force Fr with the structure of the core wire We 1 . 
     Hereinafter, comparison results of the returning force Fr of electric wires (an electric wire WeA in Example 1 and an electric wire WeB in Example 2) that fall under the category of the electric wire We in the present embodiment, and electric wires (Comparative Examples 1 to 4) that do not fall under the category of the electric wire We in the present embodiment will be described ( FIG. 10 ). In all the electric wires, the thickness of coating (1.5 mm) and the outermost diameter (15.0 mm) are the same. 
     In the comparative tests of the returning force Fr, the connector  1  in which the spring force Fs is 22.4 N, and the applied load Fw according to the allowable external input when 7.1 G vibration is applied becomes 4.4 N is used. In the connector  1 , the electric wire We the returning force Fr of which becomes 18.0 N (=|22.4−4.4|) or less is required. Then, in the comparative tests, load is applied to the tip end (terminal connection part  11 ) of the terminal metal fitting  10  from a state when the coated terminal part of the electric wire is bent at a right angle with the core wire, and the maximum value of the load is measured as the returning force Fr. The load is applied while the tip end of the terminal metal fitting  10  is pressed in at a predetermined movement amount per unit time. 
     The electric wire WeA in Example 1 is obtained by combining a type 1 coating We 2  with the core wire We 1  described above. Moreover, the electric wire WeB in Example 2 is obtained by combining a type 2 coating We 2  with the core wire We 1  described above, which is the same as that of the electric wire WeA in Example 1. 
     The core wire We 1  illustrated in this example uses 19 pieces of the twisted wires Ws including 46 pieces of the element wires We 0  with the diameter of 0.32 mm twisted in the same twisting direction at the same twisting pitch. In the core wire We 1 , one piece of the center twisted wire Ws 1 , the intermediate layer Ws 2  formed of six pieces of the twisted wires Ws, and the outer layer Ws 3  formed of 12 pieces of the twisted wires Ws are all twisted in the same direction. 
     The type 1 coating We 2  contains 80 pts.wt. ethyl methacrylate (EMA) with a methacrylic acid (MA) content of 29%, 20 pts.wt. ethylene propylene diene rubber (EPDM), 40 pts.wt. flame retardant, 24 pts.wt. antioxidant, and 1 pt.wt. processing aid. The type 2 coating We 2  contains 50 pts.wt. EMA with a MA content of 29-, 50 pts.wt. EPDM, 40 pts.wt. flame retardant, 24 pts.wt. antioxidant, and 1 pt.wt. processing aid. The type 2 coating We 2  is more flexible than the type 1 coating We 2 . In the type 1 coating We 2 , 19% strain tensile stress on the test piece is 1.6 Mpa. In the type 2 coating We 2 , 19% strain tensile stress on the test piece is 1.0 Mpa. 
     The electric wire in Comparative Example 1 is obtained by combining a core wire Weld twisted in a different direction, with a type 3 coating We 2   d  that does not fall under the category of the coating We 2  of the present embodiment. The core wire Weld twisted in a different direction includes one piece of center twisted wire, an intermediate layer formed of six pieces of twisted wires, and an outer layer formed of 12 pieces of twisted wires. In the 13 pieces of twisted wires used for the center twisted wire and the outer layer, 46 pieces of the element wires We 0  with the diameter of 0.32 mm are twisted in the same twisting direction at the same twisting pitch. On the other hand, in the six pieces of twisted wires used for the intermediate layer, 46 pieces of the element wires We 0  with the diameter of 0.32 mm are twisted in the opposite twisting direction from that of the center twisted wire and the like, at the same twisting pitch as that of the center twisted wire and the like. Moreover, each of the twisted wires in the intermediate layer is twisted in the same twisting direction as that of the center twisted wire. On the other hand, each of the twisted wires in the outer layer is twisted in the opposite twisting direction from that of the center twisted wire. The type 3 coating We 2   d  contains 100 pts.wt. EMA with a MA content of 29%, 40 pts.wt. flame retardant, 24 pts.wt. antioxidant, and 1 pt.wt. processing aid. In the coating We 2   d,  19% strain tensile stress on the test piece is 2.1 Mpa. 
     The electric wire in Comparative Example 2 is obtained by combining the core wire Weld twisted in a different direction, which is in the electric wire in Comparative Example 1, with the type 1 coating We 2 , which is the same as that of the electric wire WeA in Example 1. The electric wire in Comparative Example 3 is obtained by combining the core wire Weld twisted in a different direction, which is in the electric wire in Comparative Example 1, with the type 2 coating We 2 , which is the same as that of the electric wire WeB in Example 2. The electric wire in Comparative Example 4 is obtained by combining the core wire We 1  (core wire We 1  twisted in the same twisting direction), which is the same as that of the electric wire WeA in Example 1, with the type 3 coating We 2   d , which is the same as that of the electric wire in Comparative Example 1. 
     According to the comparison results in  FIG. 10 , in the electric wire WeA in Example 1 and the electric wire WeB in Example 2, each returning force Fr is 8.0 N and 7.3 N, and the returning force Fr is equal to or less than 18.0 N. On the other hand, in the electric wire in Comparative Example 1, the core wire and the coating do not fall under the category of the core wire We 1  and the coating We 2  in the present embodiment, and the returning force Fr is 67.5 N (&gt;18.0 N). Moreover, in the electric wire in each Comparative Example 2 and Comparative Example 3, only the coating falls under the category of the coating We 2  in the present embodiment, and each returning force Fr is 28.0 N (&gt;18.0 N) and 25.5 N (&gt;18.0 N). Furthermore, in the electric wire in Comparative Example 4, only the core wire falls under the category of the core wire We 1  in the present embodiment, and the returning force Fr is 19.3 N (&gt;18.0 N). 
     In this manner, in the electric wire We, if at least one of the core wire and the coating does not fall under the category of the present embodiment as Comparative Examples 1 to 4, the returning force Fr cannot be reduced to a desired value (18.0 N) or less. However, by using the core wire We 1  and the coating We 2  that fall under the category of the present embodiment as Examples 1 and 2, the returning force Fr can be reduced to a desired value (18.0 N) or less. 
     The connector  1  also includes the shield shell  30 . The shield shell  30  covers the housing  20  to prevent external noise from penetrating inside, and to prevent noise from being applied to the electric wire We and the terminal metal fitting  10  in the housing  20 . Thus, the shield shell  30  is formed of a conductive material such as metal. 
     The shield shell  30  includes a first shield shell member  31  and a second shield shell member  32  assembled to each other ( FIG. 1  to  FIG. 4 ). 
     The first shield shell member  31  covers the housing  20  from the cover member  22  side so as to prevent noise from penetrating into the housing  20 . The first shield shell member  31  illustrated in this example includes a main wall  31   a  that wraps the cover member  22 , and a side wall  31   b  that surrounds the housing main body  21  while the drawing direction side of the electric wire is opened ( FIG. 2  to  FIG. 4 ). 
     The first shield shell member  31  is screw fixed to the housing main body  21  in a fastening structure in which the holding direction of the first electric wire holding tool  60  by the housing main body  21  and the cover member  22  is the screw axis direction. Two fixing parts  31   c  are provided on the side wall  31   b  of the first shield shell member  31  illustrated in this example, and a female screw part N 1  is formed on each of the fixing parts  31   c  ( FIG. 1 ,  FIG. 2 , and  FIG. 4 ). Then, in the housing main body  21 , a fixing part  21   d  to be fixed to the fixing part  31   c  is provided for each fixing part  31   c  ( FIG. 1 ,  FIG. 8 , and  FIG. 9 ), and a through hole  21   d   1  ( FIG. 8  and  FIG. 9 ) for inserting a male screw member B 1  ( FIG. 1  and  FIG. 4 ) is formed on each fixing part  21   d . The first shield shell member  31  is screw fixed to the housing main body  21 , by inserting the male screw member B 1  into the through hole  21   d   1 , and by screwing the male screw member B 1  into the female screw part N 1 . 
     The second shield shell member  32  prevents noise from penetrating into a first drawn out part Wex of the electric wire We that is a part drawn out from the storage chamber  20   c . Hence, a tubular part  32   a  that stores the first drawn out part Wex is provided on the second shield shell member  32  ( FIG. 1  to  FIG. 4 ). The tubular part  32   a  illustrated in this example is formed in an oval tubular shape, and the inner space of the tubular part  32   a  is used as an electric wire storage chamber  32   b  that stores the first drawn out part Wex ( FIG. 3 ). The second shield shell member  32  is assembled to the first shield shell member  31  in a state in which the end part is brought into surface contact with the first shield shell member  31 . The second shield shell member  32  then stores the first drawn out part Wex in the electric wire storage chamber  32   b  inside the tubular part  32   a  placed closer to the drawing direction side of the electric wire than the end part of the second shield shell member  32  is, and draws out the electric wire We to the outside from a drawing port  32   c  of the electric wire storage chamber  32   b  ( FIG. 3 ). 
     In the second shield shell member  32 , a flat annular part  32   d  that is coaxial with the tubular part  32   a  and that projects inward, is provided on the periphery of the opening of the tubular part  32   a  on the drawing direction side of the electric wire ( FIG. 3 ). In the second shield shell member  32 , the opening of the annular part  32   d  on the inner peripheral surface side is used as the drawing port  32   c  of the electric wire We. 
     The second shield shell member  32  illustrated in this example includes a flat flange part  32   e  on the periphery of the opening of the tubular part  32   a  at the side opposite to the drawing port  32   c  ( FIG. 1  to  FIG. 4 ). 
     In this example, in the first shield shell member  31 , two fixing parts  31   d  having a wall surface on the same flat surface as the end surface of the main wall  31   a  are provided on the side wall  31   b  ( FIG. 1  and  FIG. 2 ). Each of the fixing parts  31   d  is used for screw fixing the second shield shell member  32  to the first shield shell member  31  via the flange part  32   e . Thus, the flat surface of the flange part  32   e  is brought into surface contact with the wall surface of the two fixing parts  31   d . In this example, a female screw part (not illustrated) is formed on each of the fixing parts  31   d . In the flange part  32   e , a through hole (not illustrated) for inserting the male screw member B 2  ( FIG. 1  and  FIG. 2 ) is formed for each fixing part  31   d . By inserting the male screw member B 2  into the through hole and screwing the male screw member B 2  into the female screw part of the fixing part  31   d , the second shield shell member  32  is screw fixed to the first shield shell member  31 . 
     As a connector component, the connector  1  includes a conductive braided member  35  that is braided in a tubular shape, that covers the tubular part  32   a  of the second shield shell member  32  in a close contact state, and that wraps a second drawn out part Wey drawn out from the electric wire storage chamber  32   b  in the electric wire We ( FIG. 1  to  FIG. 4 ). As a connector component, the connector  1  also includes an annular seal ring  36  that caulks and crimps the braided member  35  by holding the braided member  35  between the outer peripheral wall of the tubular part  32   a  and the annular seal ring  36  ( FIG. 1  to  FIG. 4 ). For example, in the connector  1 , the two fixing parts  31   e  ( FIG. 1  and  FIG. 2 ) provided on the side wall  31   b  of the first shield shell member  31  are screw fixed to the metal casing of the mating device, and noise is released by electrically connecting the shield shell  30  and the braided member  35  to the casing. 
     Moreover, as a connector component, the connector  1  includes a rubber boot  70  that is formed in a tubular shape, that covers the braided member  35  while covering the tubular part  32   a  of the second shield shell member  32  in a close contact state, and that stores the braided member  35  so as to wrap and hide the braided member  35  inside ( FIG. 3 ). For example, the rubber boot  70  is fixed to the outer peripheral wall of the tubular part  32   a  in a close contact state, by winding a fastening member  75  such as a cable tie from the outside. Illustration of the rubber boot  70  is omitted in the drawings other than the present drawing. 
     Moreover, as a connector component, the connector  1  includes a seal member (hereinafter, referred to as a “braided side seal member”)  45  for water proofing and dust proofing between the inner peripheral wall of the electric wire storage chamber  32   b  and the first drawn out part Wex of the electric wire We, by filling a gap therebetween ( FIG. 3  and  FIG. 4 ). The braided side seal member  45  is formed of an elastic member such as synthetic rubber. 
     The braided side seal member  45  may be provided for each electric wire We, or may fill a gap between the inner peripheral wall of the electric wire storage chamber  32   b  and the first drawn out parts Wex of the electric wires We. The braided side seal member  45  illustrated in this example fills a gap between the inner peripheral wall of the electric wire storage chamber  32   b  and the first drawn out part Wex of each of the two electric wires We. 
     The braided side seal member  45  illustrated in this example is formed in an oval shape, and includes a circular through hole  45   a  for each electric wire We ( FIG. 4 ). Then, in the braided side seal member  45 , an annular lip (hereinafter, referred to as an “outer peripheral lip”) is formed on the outer peripheral surface in a coaxial manner, and an annular lip (hereinafter, referred to as an “inner peripheral lip”) is formed on the inner peripheral surface of the through hole  45   a  in a coaxial manner. In the braided side seal member  45 , the outer peripheral lip is brought into close contact with the inner peripheral wall of the tubular part  32   a , and the inner peripheral lip is brought into close contact with the outer peripheral surface of the first drawn out part Wex of the electric wire We. 
     Moreover, the connector  1  includes an electric wire holding tool (hereinafter, referred to as a “second electric wire holding tool”)  80  that holds the electric wire We in the electric wire storage chamber  32   b  of the second shield shell member  32  as a connector component ( FIG. 3  and  FIG. 4 ). The second electric wire holding tool  80  is formed of an insulating material such as synthetic resin. The second electric wire holding tool  80  may be provided for each electric wire We, or may be provided as one component capable of holding the electric wires We. The second electric wire holding tool  80  illustrated in this example is provided as one component capable of holding the first drawn part Wex of the electric wires We (in this example, two electric wires We). Moreover, similar to the first electric wire holding tool  60  described above, the second electric wire holding tool  80  illustrated in this example is obtained by assembling a first electric wire holding member  81  and a second electric wire holding member  82  formed as the same component ( FIG. 3  and  FIG. 4 ). The second electric wire holding tool  80  includes an electric wire insertion part  80   a , which is the same as the electric wire insertion part  60   a  of the first electric wire holding tool  60 . Moreover, similar to the first electric wire holding tool  60 , the second electric wire holding tool  80  includes a lock mechanism (for example, a lock mechanism using claw parts or the like to be hooked to each other) that maintains the assembled state of the first electric wire holding member  81  and the second electric wire holding member  82  therebetween. In this example, the second electric wire holding tool  80  is placed closer to the drawing port  32   c  side of the electric wire storage chamber  32   b  than the braided side seal member  45  is ( FIG. 3 ). 
     As described above, the wire harness WH of the present embodiment uses the electric wire We the returning force Fr of which to the shape before being bent according to the bending shape of the bent part Web becomes smaller than the absolute value of the spring force Fs between the terminal connection part  11  and the mating terminal connection part  511  (that is, the electric wire We with high flexibility). Hence, it is possible to apply the spring force of the difference (|Fs−Fr|) between the terminal connection part  11  and the mating terminal connection part  511 . In particular, the wire harness WH illustrated in this example uses the electric wire We the returning force Fr of which becomes equal to or less than the absolute value of the subtraction value of the spring force Fs and the applied load Fw (that is, the electric wire We with higher flexibility). Hence, even if the looseness of the connector components is taken into account, it is possible to apply the spring force of the difference (|Fs−Fr−Fw|) between the terminal connection part  11  and the mating terminal connection part  511 . Consequently, in the wire harness WH, because it is possible to suppress a change in the load to be applied between the contact point part (contact point part  15   a  of the spring contact point member  15 ) of the terminal metal fitting  10  and the contact point part of the mating terminal connection part  511 , it is possible to ensure the quality of conduction between the contact points. The wire harness WH of the present embodiment can make the fitting connection direction and the electric wire drawing direction intersect with each other, while ensuring the quality of conduction, by bending the electric wire We without interposing a flexible relay conductor between the electric wire We and the terminal metal fitting  10 . That is, the wire harness WH of the present embodiment can make the fitting connection direction and the electric wire drawing direction intersect with each other, while ensuring the quality of conduction and reducing the number of components. 
     Moreover, the wire harness WH of the present embodiment can be reduced in size and weight, by reducing the number of components. 
     Furthermore, in the wire harness WH of the present embodiment, there is no need to peel off the coating We 2  of the bent part Web of the electric wire We. Hence, there is no need to take measures assuming that the peripheral component may come into contact with the core wire We 1  of the bent part Web (measures such as increasing a gap between the peripheral component and the core wire We 1 , and coating the bare core wire We 1  with resin). Thus, from this point also, the wire harness WH of the present embodiment can reduce the number of components, and can be reduced in size and weight. In the wire harness WH of the present embodiment, because the coating We 2  can be left on the bent part Web, it is possible to improve the durability of the electric wire We in the bent part Web. 
     The wire harness according to the embodiment uses the electric wire the returning force of which to the shape before being bent according to the bending shape of the bent part is smaller than the absolute value of the spring force between the terminal connection part and the mating terminal connection part (that is, the electric wire with high flexibility). Hence, it is possible to apply the spring force of the difference of the returning force and the spring force between the terminal connection part and the mating terminal connection part. Consequently, in the wire harness, it is possible to suppress a change in the load to be applied between the contact point part of the terminal metal fitting and the contact point part of the mating terminal connection part, and ensure the quality of conduction between the contact points. The wire harness according to the embodiment can also make the fitting connection direction and the electric wire drawing direction intersect with each other while ensuring the quality of conduction, by bending the electric wire without interposing a flexible relay conductor between the electric wire and the terminal metal fitting. That is, the wire harness according to the embodiment can make the fitting connection direction and the electric wire drawing direction intersect with each other, while ensuring the quality of conduction and reducing the number of components. 
     Although the invention has been described with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching herein set forth.