Connectors and wires with connectors

Abstract

To suppress reduction of communication performance.SOLUTION: A connector comprises a terminal fitting 30 including a pair of pressure-welding bodies 31 and 31 to be pressure-welded to an electric wire 10, and a housing 40 in which the terminal fitting is stored and a twisted wire pair 10A is stored while being folded to a first twisted wire part side 10A1 and a second twisted wire part side 10A2 with a folding point 10A3 defined as an origin. The housing includes a terminal storage chamber 41 in which terminal fittings of the twisted paired wires for each electric wire are stored while being arranged side by side and includes: a first housing body 40A in which the first twisted wire part side pressure-welding the pair of pressure-welding bodies to the electric wire is arranged; a second housing body 40B which is assembled with the first housing body and in which the second twisted wire part side is arranged in an electric wire arranging chamber 42; and a pressurizing part 40D1 which is assembled with any one of these housing bodies and interposed between the first twisted wire part side and the second twisted wire part side of the twisted wire pair in a folded shape at an assembly completion position thereof and holds the folded shape of the twisted wire pair by applying a pressure to the folding point of the twisted wire pair.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a connector and a connectorized electric wire. [Background technology]

[0002] Conventionally, connectors and electric wires with connectors have been known that use twisted pairs (two electric wires twisted together) as electric wires. For example, this type of connector and electric wire with connector is disclosed in Patent Document 1 listed below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-217358 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in a twisted pair cable, when the two wires are untwisted, there is a possibility that communication performance will be degraded, for example, due to a decrease in noise resistance at the location where the untwist occurs.

[0005] SUMMARY OF THE PRESENT EMBODIMENTS Accordingly, an object of the present invention is to provide a connector and an electric wire with a connector that can suppress a decrease in communication performance. [Means for solving the problem]

[0006] In order to achieve the above object, a connector according to the present invention includes a terminal fitting provided with a pair of insulation displacement bodies that are pressure-welded to a core wire of a pressure-welded portion of an electric wire, and a housing in which the terminal fitting for each of the electric wires is housed and a twisted pair wire formed by twisting two electric wires is housed by folding back the twisted pair wire from a folding point starting point to a first twisted wire portion side and a second twisted wire portion side, the housing having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair wire are housed side by side, and the first housing main body in which the first twisted wire portion side with the pair of insulation displacement bodies pressure-welded to the electric wire is arranged, and the first housing has a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair wire are housed side by side, and a pressure applying section which is interposed between the first twisted wire portion side and the second twisted wire portion side of the folded twisted pair wire at a completed assembly position of the first housing body and the second housing body in which the terminal accommodating chamber and the electric wire routing chamber are arranged opposite each other through their openings, and which applies pressure to the folding point of the twisted pair wire to maintain the folded shape of the twisted pair wire.

[0007] In order to achieve the above object, a connector according to the present invention includes a terminal fitting provided with a pair of insulation displacement bodies that are pressure-welded to a core wire of a pressure-welded portion of an electric wire, and a housing in which the terminal fitting for each of the electric wires is accommodated and in which a twisted pair formed by twisting two electric wires is accommodated by folding back the terminal fitting for each of the electric wires from a folding point starting point to a first twisted wire section side and a second twisted wire section side, the housing includes a first housing main body having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are accommodated side by side with the pair of insulation displacement bodies exposed, and a terminal accommodating chamber in which the twisted pair is accommodated by folding back the terminal fitting for each of the electric wires of the twisted pair from the folding point starting point to the first twisted wire section side and the second twisted wire section side, the housing includes a terminal accommodating chamber having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are accommodated side by side with the pair of insulation displacement bodies exposed, and a terminal accommodating chamber in which the twisted pair is accommodated by folding back the terminal fitting for each of the electric wires from the folding point starting point to the first twisted wire section side and the second twisted wire section side, the terminal accommodating chamber being assembled to the first housing main body. and a second housing main body attached to the first housing body, the second housing main body having a first electric wire routing section in which the first twisted wire portion side of the twisted wire pair is arranged and which presses the pair of pressure contacts against the electric wires on the first twisted wire portion side at a position where assembly with the first housing body is completed, a second electric wire routing section attached to the first electric wire routing section and in which the second twisted wire portion side of the twisted wire pair is arranged, and a pressure section interposed between the first twisted wire portion side and the second twisted wire portion side of the twisted wire pair in a folded-back shape at the position where assembly of the first electric wire routing section and the second electric wire routing section is completed, and which applies pressure to the folding point of the twisted wire to maintain the folded shape of the twisted wire pair.

[0008] In order to achieve the above object, an electric wire with a connector according to the present invention includes a terminal fitting provided with a pair of insulation displacement bodies that are pressure-welded to a core wire of a pressure-welded portion of an electric wire, a twisted pair formed by twisting two electric wires together, and a housing in which the terminal fittings for each of the electric wires are housed and the twisted pair is folded back from a folding point to a first twisted wire section side and a second twisted wire section side, the housing having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are housed side by side, and a first housing main body in which the first twisted wire section side with the pair of insulation displacement bodies pressure-welded to the electric wire is arranged, The terminal accommodating chamber and the electric wire routing chamber are disposed opposite each other through their openings. ...

[0009] In order to achieve the above object, an electric wire with a connector according to the present invention includes a terminal fitting provided with a pair of insulation displacement bodies that are pressure-welded to a core wire of a pressure-welded portion of an electric wire, a twisted pair wire formed by twisting two electric wires together, and a housing in which the terminal fittings for each of the electric wires are accommodated and in which the twisted pair wire is accommodated by being folded back from a folding point to a first twisted wire section side and a second twisted wire section side, the housing including a first housing main body having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair wire are accommodated side by side with the pair of insulation displacement bodies exposed, and a terminal accommodating chamber in which the twisted pair wire is accommodated by being folded back from the folding point to the first twisted wire section side and the second twisted wire section side, the first housing main body having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair wire are accommodated side by side with the pair of insulation displacement bodies exposed, and a second housing main body assembled to a first housing body, the second housing main body having a first electric wire routing section in which the first twisted wire portion side of the twisted wire pair is arranged and which presses the pair of pressure contact bodies against the electric wires on the first twisted wire portion side when the first housing body is assembled to the first housing body, a second electric wire routing section assembled to the first electric wire routing section and in which the second twisted wire portion side of the twisted wire pair is arranged, and a pressure section interposed between the first twisted wire portion side and the second twisted wire portion side of the twisted wire pair in a folded-back shape when the first electric wire routing section and the second electric wire routing section are assembled to the first housing body and which applies pressure to the folded point of the twisted wire to maintain the folded shape of the twisted wire pair. Effect of the Invention

[0010] In the connector and electric wire with connector according to the present invention, the twisted pair is accommodated in the housing while the folded shape is maintained by the pressing portion. Therefore, in this connector and electric wire with connector, the twist of the two electric wires of the twisted pair is difficult to untwist, and deterioration of communication performance can be suppressed. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a connector-attached electric wire according to an embodiment. [Diagram 2] FIG. 2 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Diagram 3]FIG. 3 is a perspective view showing the connector-attached electric wire of the embodiment with the housing in a fully open state. [Figure 4] FIG. 4 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Diagram 5] FIG. 5 is a perspective view showing the connector-attached electric wire of the embodiment with the housing in a fully open state, and is an explanatory view showing the state after the twisted pair wires have been routed. [Figure 6] FIG. 6 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 7] FIG. 7 is a perspective view showing the connector-attached electric wire of the embodiment with the lid member of the housing closed. [Figure 8] FIG. 8 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 9] FIG. 9 is an explanatory diagram showing an application example of the connector-attached electric wire according to the embodiment. [Figure 10] FIG. 10 is a perspective view showing a connector-attached electric wire according to the first modification. [Figure 11] FIG. 11 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 12] FIG. 12 is a perspective view showing the connector-attached electric wire of the first modified example with the housing in a fully open state, and is an explanatory view showing the state after the twisted pair wires have been routed. [Figure 13] FIG. 13 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 14] FIG. 14 is a perspective view showing the connector-attached electric wire of the first modified example with the lid member of the housing closed. [Figure 15] FIG. 15 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 16] FIG. 16 is an explanatory diagram showing an application example of the connector-attached electric wire of the first modification. [Figure 17] FIG. 17 is a perspective view showing a connector-attached electric wire according to the second modification. [Figure 18] FIG. 18 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 19]FIG. 19 is an exploded perspective view showing the connector-attached electric wire of the second modified example before the first housing body side and the second housing body side are assembled together. [Figure 20] FIG. 20 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 21] FIG. 21 is a perspective view showing the second housing main body of the second modification in a fully open state. [Figure 22] FIG. 22 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 23] FIG. 23 is a schematic diagram corresponding to a cross section taken along line XX in FIG. 21, and shows the twisted pair after it has been installed. [Figure 24] FIG. 24 is a perspective view showing the second housing main body of the second modification with the cover member closed. [Diagram 25] FIG. 25 is an explanatory diagram that shows a schematic cross section taken along line XX in FIG. [Figure 26] FIG. 26 is an exploded perspective view showing the connector-attached electric wire of the third modified example before the first housing body side and the second housing body side are assembled together. [Figure 27] FIG. 27 is a perspective view showing the second housing main body of the third modification in a fully open state. [Figure 28] FIG. 28 is a perspective view showing the second housing main body of the third modified example in a fully open state, and shows the state after the twisted pair wire has been routed. [Figure 29] FIG. 29 is a partially enlarged view of the YY line cut in FIG. 27, and is an explanatory diagram showing the assembly process of the twisted wire pair. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a connector and an electric wire with a connector according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to these preferred embodiments.

[0013] [Embodiment] One embodiment of a connector and an electric wire with a connector according to the present invention will be described with reference to Figs.

[0014] 1 to 8, reference numeral 1 denotes an electric wire with a connector according to the present embodiment. This electric wire with a connector 1 includes a plurality of electric wires 10 and a connector 20 attached to the plurality of electric wires 10.

[0015] The electric wire with connector 1 includes at least a twisted pair 10A formed by twisting two electric wires 10 together (FIGS. 1, 2, and 5 to 8). In the electric wire with connector 1, the twisted pair 10A is folded back from a folding point 10A3 to a first twisted wire section side 10A1 and a second twisted wire section side 10A2, and a connector 20 is attached to the folding point 10A3 (FIG. 2). For example, the electric wire with connector 1 is formed by attaching the connector 20 to the folding point 10A3 of one twisted pair 10A drawn out from a trunk 10X (FIG. 9), and constitutes a wire harness WH together with the trunk 10X. The connector 20 is, for example, fitted and connected to a mating connector (not shown) of an electronic device EP (FIG. 9).

[0016] Although not shown in the drawings, the electric wire 10 includes a core wire serving as a conductor and a coating that covers the core wire.

[0017] The connector 20 includes a terminal fitting 30 and a housing 40 (FIGS. 2 to 6 and 8). In this connector 20, the terminal fitting 30 for each electric wire 10 is accommodated in the housing 40. Here, a terminal fitting 30 is provided for each electric wire 10 of the twisted pair wire 10A.

[0018] The terminal fitting 30 is made of a conductive material such as metal, and is formed into a predetermined shape by, for example, press forming such as bending and cutting a metal plate as a base material.

[0019] The terminal fitting 30 has a pair of crimping bodies 31, 31 that presses against the core wire of the crimped portion 10a of the electric wire 10 as an electric wire connecting part that physically and electrically connects to the core wire of the electric wire 10 (FIGS. 2 to 6 and 8). The pair of crimping bodies 31, 31 are arranged opposite each other with a gap between their ends, and when the electric wire 10 is inserted between the ends, the ends cut the insulation and press the ends against the core wire. The electric wire 10 that is crimped to the pair of crimping bodies 31, 31 is drawn out from between the pair of crimping bodies 31, 31 in a direction perpendicular to the direction in which the crimping bodies 31, 31 are arranged opposite each other and the direction in which the electric wire 10 is inserted between the crimping bodies 31, 31. The crimping body 31 is formed as a single body. The end of the crimping body 31 may be formed as a blade-shaped crimping blade, or may be formed as a flat surface having a thickness equivalent to the plate thickness of the base material.

[0020] This terminal fitting 30 is configured as a connection terminal that is physically and electrically connected to a mating terminal fitting, and has a pair of insulation displacement bodies 31, 31 and one terminal connection portion 32 (Figs. 2, 4, 6, and 8). The terminal connection portion 32 and the mating terminal connection portion of the mating terminal fitting are physically and electrically connected to each other by fitting connection between them, one of which is formed in a female terminal shape and the other of which is formed in a male terminal shape. The terminal connection portion 32 shown here is formed in a female terminal shape.

[0021] In the terminal fitting 30 shown here, a pair of insulation displacement bodies 31, 31 and a terminal connection portion 32 are arranged in the direction of fitting and connecting to a mating terminal connection portion. In this terminal fitting 30, the pair of insulation displacement bodies 31, 31 and the terminal connection portion 32 are connected via a flat connecting portion 33 (FIGS. 2, 4, 6 and 8). In the terminal fitting 30 shown here, the pair of insulation displacement bodies 31, 31 and the terminal connection portion 32 protrude in opposite directions as viewed from the connecting portion 33. Here, the pair of insulation displacement bodies 31, 31 protrude from one flat surface of the connecting portion 33, and the terminal connection portion 32 protrudes from the other flat surface of the connecting portion 33.

[0022] In the electric wire with connector 1 shown here, the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 of the twisted pair wire 10A are pulled out of the housing 40 in a direction opposite to the mating connection direction of the terminal connection portion 32. For this reason, the terminal fitting 30 is formed with a pair of insulation displacement bodies 31, 31 so as to pull out the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 in the pulling direction. For example, in this electric wire with connector 1, the pulling direction of the twisted pair wire 10A pulled out from the trunk line 10X is the mating connection direction of the connector 20 (FIG. 9).

[0023] The housing 40 is made of an insulating material such as synthetic resin.

[0024] In this housing 40, the terminal fittings 30 for each electric wire 10 are accommodated, and the twisted pair wire 10A is accommodated by being folded back from a folding point 10A3 to a first twisted wire portion side 10A1 and a second twisted wire portion side 10A2.

[0025] The housing 40 has a first housing body 40A and a second housing body 40B assembled to the first housing body 40A (FIGS. 1 to 8). In the housing 40, when the first housing body 40A and the second housing body 40B are in an assembled position, the twisted pair 10A is folded back in a U-shape starting from a folding point 10A3. In the housing 40, when the first housing body 40A and the second housing body 40B are in an assembled position, the first twisted wire portion side 10A1 of the twisted pair 10A is arranged in the first housing body 40A, and the second twisted wire portion side 10A2 of the twisted pair 10A is arranged in the second housing body 40B.

[0026] In this housing 40, a part of the twisted wire pair 10A before being folded back is routed between the first housing body 40A and the second housing body 40B before being assembled, and the twisted wire pair 10A is folded back in conjunction with the assembly operation of the first housing body 40A and the second housing body 40B. Here, the first housing body 40A and the second housing body 40B are assembled while being rotated relative to each other, so that the twisted wire pair 10A is pushed and folded back by the first housing body 40A and the second housing body 40B. The housing 40 rotates the second housing body 40B together with the wiring twisted portion relative to the first housing body 40A between an open position of the first housing body 40A and the second housing body 40B where a portion of the twisted pair 10A that becomes a part of the second twisted wire portion side 10A2 after folding back (hereinafter referred to as the "routed twisted wire portion") is routed to the second housing body 40B, and a closed position of the first housing body 40A and the second housing body 40B as an assembly completion position. In other words, the housing 40 rotates the second housing body 40B relative to the first housing body 40A between the open position of the first housing body 40A and the second housing body 40B where the twisted pair 10A is not folded back and the closed position of the first housing body 40A and the second housing body 40B where the twisted pair 10A is folded back. Therefore, the housing 40 has a body hinge portion (hereinafter referred to as "first hinge portion") 40C between the first housing body 40A and the second housing body 40B, which is responsible for the relative rotation between them (FIGS. 1 to 8). The first hinge portion 40C is provided at a position where the second housing body 40B can rotate relative to the first housing body 40A between the closed position and the open position while a part of the twisted pair wire 10A is arranged between the first housing body 40A and the second housing body 40B. In the housing 40 shown here, a living hinge is applied to the first hinge portion 40C, and the first housing body 40A, the second housing body 40B, and the first hinge portion 40C are integrally formed.

[0027] The first housing body 40A has terminal accommodating chambers 41 for the terminal fittings 30 in which the terminal fittings 30 for each electric wire 10 of the twisted pair wire 10A are arranged and accommodated (FIGS. 2 to 8). The first housing body 40A accommodates the first twisted wire portion side 10A1 of the twisted pair wire 10A having a pair of insulation displacement bodies 31, 31 pressure-welded to the electric wire 10.

[0028] The terminal accommodating chamber 41 is roughly divided into a first accommodating portion 41a in which the pair of insulation displacement bodies 31, 31 are accommodated, and a second accommodating portion 41b in which the terminal connecting portion 32 is accommodated (FIGS. 2, 4, 6 and 8).

[0029] The first housing portion 41a may be a room formed for each terminal metal fitting 30, or may be a room in which a pair of pressure-contact bodies 31, 31 of a plurality of terminal metal fittings 30 are accommodated together. When the first housing body 40A and the second housing body 40B are in the assembly completion position (closed position), the first twisted wire portion side 10A1 of the twisted pair wire 10A is accommodated in the first housing portion 41a. In the first housing portion 41a, the pair of pressure-contact bodies 31, 31 of the terminal metal fitting 30 are pressure-contacted to the electric wire 10 on the first twisted wire portion side 10A1. For example, in a state in which two terminal metal fittings 30 have already been accommodated in the first housing portion 41a, a portion (hereinafter referred to as a "wire arrangement twisted wire portion") that will become the first twisted wire portion side 10A1 of the twisted pair wire 10A after folding back is inserted from an opening (hereinafter referred to as a "first opening") 41c (FIGS. 2 to 6 and 8). In the first housing section 41a, the press-contact portion 10a of each electric wire 10 on the first twisted wire portion side 10A1 is inserted into a pair of press-contact bodies 31, 31 of the respective terminal fittings 30, and the pair of press-contact bodies 31, 31 is press-contacted to the press-contact portion 10a. The first twisted wire portion side 10A1 of the twisted pair wire 10A is drawn out of the first housing section 41a through an opening (hereinafter referred to as a "second opening") 41d perpendicular to the first opening 41c (FIGS. 2 to 4, 6 and 8). The second opening 41d is used as an electric wire outlet for drawing out the first twisted wire portion side 10A1 to the outside of the housing 40. The second opening 41d is formed to open in a direction opposite to the direction of fitting and connecting the terminal connection portion 32 to the mating terminal connection portion.

[0030] On the other hand, the second accommodating portion 41b is formed for each terminal fitting 30. Although not shown, the second accommodating portion 41b is provided with a terminal locking portion that bends as it is pushed by the terminal connecting portion 32 during insertion and that is released from the bending when the accommodation of the terminal connecting portion 32 is completed to lock the terminal connecting portion 32. The terminal locking portion is intended to prevent the terminal fitting 30 from coming out of the housing 40. Here, for example, a so-called lance is provided as the terminal locking portion.

[0031] As described above, the terminal fitting 30 shown here has a pair of pressure contact bodies 31, 31 protruding from one flat surface of the connecting portion 33, and a terminal connection portion 32 protruding from the other flat surface of the connecting portion 33. Therefore, the first housing main body 40A shown here has a divided structure divided into a first housing body 40A1 on the second housing portion 41b side and a second housing body 40A2 on the first housing portion 41a side (FIGS. 2 and 4). The first housing body 40A has the first housing body 40A1 and the second housing body 40A2 rotatably connected via a hinge portion 40A3. In this first housing main body 40A, when accommodating the terminal connection portion 32 in the second accommodating portion 41b, the first accommodating body 40A1 and the second accommodating body 40A2 are opened, and after accommodating the terminal connection portion 32 in the second accommodating portion 41b, the first accommodating body 40A1 and the second accommodating body 40A2 are closed to the position shown in Figures 2 and 4 to accommodate the pair of pressure contact bodies 31, 31 in the first accommodating portion 41a. In the first housing main body 40A shown here, a living hinge is applied to the hinge portion 40A3, and the first accommodating body 40A1, the second accommodating body 40A2 and the hinge portion 40A3 are integrally molded.

[0032] The second housing body 40B has an electric wire routing chamber 42 in which the second twisted wire portion side 10A2 of the twisted pair wire 10A is routed (FIGS. 2 to 8). In this electric wire routing chamber 42, the routed twisted wire portion that becomes the second twisted wire portion side 10A2 of the twisted pair wire 10A after folding back is inserted from an opening (hereinafter referred to as a "first opening") 42a. The second twisted wire portion side 10A2 of the twisted pair wire 10A is drawn out of the electric wire routing chamber 42 from an opening (hereinafter referred to as a "second opening") 42b that is perpendicular to the first opening 42a (FIGS. 2 to 8). The second opening 42b is used as an electric wire outlet for drawing out the second twisted wire portion side 10A2 to the outside of the housing 40. This second opening 42b is formed so as to open in the opposite direction to the mating connection direction of the terminal connection portion 32 to the mating terminal connection portion when the first housing body 40A and the second housing body 40B are in the completed assembly position (closed position).

[0033] In this housing 40, when the first housing body 40A and the second housing body 40B are in the completed assembly position (closed position), the first accommodating portion 41a of the terminal accommodating chamber 41 and the wire routing chamber 42 are arranged opposite to each other via their respective first openings 41c, 42a, and the respective second openings 41d, 42b open in the opposite direction to the mating connection direction of the terminal connection portion 32 (Figure 2). Therefore, in this housing 40, when the first housing body 40A and the second housing body 40B are in the completed assembly position (closed position), the first twisted wire portion side 10A1 of the twisted pair wire 10A in the first accommodating portion 41a and the second twisted wire portion side 10A2 of the twisted pair wire 10A in the wire routing chamber 42 are accommodated in an opposing arrangement, and the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 are pulled out from the second openings 41d, 42b in the direction opposite to the mating connection direction of the terminal connection portion 32.

[0034] The housing 40 has a pressure member 40D1 that is interposed between the first twisted wire portion 10A1 and the second twisted wire portion 10A2 of the twisted wire pair 10A in the folded shape in the assembled position (closed position) and applies pressure to the folding point 10A3 of the twisted wire pair 10A to maintain the folded shape of the twisted wire pair 10A (FIGS. 2 to 8). The pressure member 40D1 is assembled to either the first housing body 40A or the second housing body 40B. Here, the pressure member 40D1 is assembled to the first housing body 40A. The housing 40 shown here rotates the pressure member 40D1 relative to the first housing body 40A between a closed position where the pressure member 40D1 is disposed in the first opening 41c of the first storage portion 41a and an open position where the pressure member 40D1 opens the first opening 41c. Therefore, the housing 40 has a hinge portion (hereinafter referred to as a "second hinge portion") 40E between the first housing body 40A and the pressure portion 40D1, which is responsible for the relative rotation between them (FIGS. 3 and 5). In the housing 40 shown here, a living hinge is applied to the second hinge portion 40E, and the first housing body 40A, the second housing body 40B, the pressure portion 40D1, the first hinge portion 40C, and the second hinge portion 40E are integrally molded.

[0035] In the connector 20 and the electric wire with connector 1, when the first housing body 40A and the second housing body 40B are in the open position and the first housing body 40A and the pressing portion 40D1 are in the open position, the wiring twisted portion that becomes the first twisted portion side 10A1 of the twisted pair wire 10A after folding back is accommodated in the first accommodation portion 41a of the terminal accommodation chamber 41, and the wiring twisted portion that becomes the second twisted portion side 10A2 of the twisted pair wire 10A after folding back is accommodated in the electric wire arrangement chamber 42, and a part of the twisted pair wire 10A is arranged between the first housing body 40A and the second housing body 40B (FIGS. 3 to 6). At that time, in the first accommodation portion 41a, the pair of pressure contact bodies 31, 31 of the terminal fitting 30 are pressure-contacted to the wiring twisted portion that becomes the first twisted portion side 10A1 of the twisted pair wire 10A after folding back (FIGS. 5 and 6). Thereafter, in the connector 20 and the electric wire with connector 1, the pressing part 40D1 is rotated relative to the first housing body 40A to the closed position with the second hinge part 40E as the center of rotation (FIGS. 7 and 8). Then, in the connector 20 and the electric wire with connector 1, the second housing body 40B is rotated relative to the first housing body 40A together with the twisted pair 10A to the closed position with the first hinge part 40C as the center of rotation (FIGS. 1 and 2). As a result, in the connector 20 and the electric wire with connector 1, the twisted pair 10A is folded back with the folding back point 10A3 pressed by the pressing part 40D1 as the starting point. Here, the first twisted wire part side 10A1 and the second twisted wire part side 10A2 of the folded back twisted pair 10A are drawn out in the opposite direction to the mating connection direction of the terminal connection part 32 to the mating terminal connection part. For this reason, in the housing 40, when the first housing body 40A and the second housing body 40B are in the open position and the first housing body 40A and the pressure portion 40D1 are in the open position, the first hinge portion 40C is provided at a position where the axial direction of the rotation shaft is perpendicular to the wiring direction of the twisted wire pair 10A.

[0036] As described above, in the connector 20 and the electric wire with connector 1 of this embodiment, the twisted pair wire 10A is accommodated in the housing 40 while the folded shape is maintained by the pressing part 40D1. For example, in the connector 20 and the electric wire with connector 1, it is preferable that the pressing part 40D1 applies pressure to the folded point 10A3 and the pressing part 40D1 presses the folded point 10A3 against the inner wall surface of the housing 40. Here, the pressing part 40D1 presses the folded point 10A3 against the inner wall surface 40Ba arranged opposite to the first opening 42a of the second housing main body 40B with a gap therebetween (FIG. 2). As a result, in the connector 20 and the electric wire with connector 1, the twisted pair wire 10A is accommodated in the housing 40 while maintaining the folded shape. Therefore, in the connector 20 and the electric wire with connector 1, the twist of the two electric wires 10 of the twisted pair wire 10A is difficult to be untwisted, and the deterioration of communication performance can be suppressed.

[0037] Incidentally, the housing 40 of this embodiment further has an elastic deformation portion 40D2 that applies pressure from the pressure portion 40D1 to the turn-back point 10A3 of the twisted pair wire 10A with a resilient force accompanying elastic deformation (FIGS. 2 to 8). As a result, in the connector 20 and the connector-attached electric wire 1 of this embodiment, when the pressure portion 40D1 applies pressure to the turn-back point 10A3, the elastic deformation portion 40D2 can absorb the reaction force received by the pressure portion 40D1 from the turn-back point 10A3. Therefore, in the connector 20 and the connector-attached electric wire 1, since excessive pressure is unlikely to be applied to the turn-back point 10A3 from the pressure portion 40D1, it is possible to suppress untwisting of the twisted pair wire 10A while ensuring the durability of the twisted pair wire 10A, the pressure portion 40D1, and the second hinge portion 40E, and to suppress deterioration of communication performance.

[0038] Specifically, the pressure applying portion 40D1 and the elastic deformation portion 40D2 of this embodiment are provided on a cover member 40D that closes the first opening 41c of the first storage portion 41a (FIGS. 2 to 8).

[0039] In this cover member 40D, a plate-shaped elastic deformation portion 40D2 is connected to the second hinge portion 40E. The second hinge portion 40E shown here is provided between the second housing main body 40B and the elastic deformation portion 40D2 at a position where the axial direction of the rotation shaft of the second hinge portion 40E is perpendicular to the axial direction of the rotation shaft of the first hinge portion 40C.

[0040] In addition, the cover member 40D is provided with a cylindrical pressure member 40D1 at the end on the first hinge portion 40C side when the cover member 40D covers the first opening 41c. The pressure member 40D1 is provided so that the axis of the cylinder faces the same direction as the rotation axis of the first hinge portion 40C when the cover member 40D covers the first opening 41c. That is, the pressure member 40D1 shown here is provided with an arc-shaped surface that aligns the electric wire 10 at the turn-back point 10A3 in the circumferential direction. The arc-shaped surface is formed to have a curvature that does not cause excessive bending stress to the electric wire 10 at the turn-back point 10A3. The excessive bending stress is, for example, a bending stress that reduces the durability of the twisted pair wire 10A or a bending stress that may cause untwisting of the twisted pair wire 10A. Therefore, the connector 20 and the electric wire with connector 1 can suppress deterioration in durability and communication performance from this point of view as well.

[0041] Furthermore, in the cover member 40D, the end portion 40D of the elastic deformation portion 40D2 on the opposite side to the pressure portion 40D1 side is 21 The second twisted wire portion side 10A2 after folding back is pressed against the inner wall surface 40Ba of the second housing body 40B (FIGS. 2, 3, 5, 7, and 8). As a result, in the connector 20 and the electric wire with connector 1, the twisted pair wire 10A can be more reliably maintained in the folded back shape in the housing 40, making it even more difficult for the twist of the two electric wires 10 of the twisted pair wire 10A to be untwisted, thereby enhancing the effect of suppressing the deterioration of communication performance.

[0042] [Variation 1] 10 to 15, reference numeral 2 denotes a connector-attached electric wire of this modified example. This connector-attached electric wire 2 is obtained by replacing the connector 20 in the connector-attached electric wire 1 of the above-described embodiment with a connector 120 described below.

[0043] Like the connector 20 of the embodiment, the connector 120 of this modification includes a terminal fitting 130 and a housing 140 (FIGS. 11 to 15).

[0044] The terminal fitting 130 of this modification has a pair of pressure-contact bodies 131, 131 and a terminal connection portion 132 similar to the terminal fitting 30 of the embodiment (FIGS. 11 to 15). However, in the electric wire with connector 2 of this modification, the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 of the twisted pair wire 10A are drawn out from the housing 140 in a direction perpendicular to the mating connection direction of the terminal connection portion 132. Therefore, in the terminal fitting 130 of this modification, a pair of pressure-contact bodies 131, 131 are formed so as to draw out the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 in the drawing direction. For example, in this electric wire with connector 2, the drawing direction of the twisted pair wire 10A drawn out from the trunk line 10X is perpendicular to the mating connection direction of the connector 20 (FIG. 16).

[0045] Furthermore, the terminal fitting 130 of this modified example also has a flat connecting portion 133 connecting the pair of insulation displacement bodies 131, 131 and the terminal connecting portion 132, like the terminal fitting 30 of the embodiment, but unlike the terminal fitting 30, the pair of insulation displacement bodies 131, 131 and the terminal connecting portion 132 protrude in the same direction when viewed from the connecting portion 133 (FIGS. 11, 13 and 15). Here, the pair of insulation displacement bodies 131, 131 and the terminal connecting portion 132 protrude in the same direction from one flat surface of the connecting portion 133.

[0046] The housing 140 of this modification has a first housing body 140A and a second housing body 140B that are assembled together, similar to the housing 40 of the embodiment (FIGS. 10 to 15). In the housing 140 of this modification, the twisted pair wire 10A is folded back in a U-shape starting from a folding point 10A3 when the first housing body 140A and the second housing body 140B are in the assembled position, similar to the housing 40 of the embodiment. In the housing 140, the first twisted wire portion side 10A1 of the twisted pair wire 10A is arranged in the first housing body 140A, and the second twisted wire portion side 10A2 is arranged in the second housing body 140B.

[0047] Furthermore, in the housing 140 of this modified example, like the housing 40 of the embodiment, a portion of the twisted wire pair 10A before being folded is routed between the first housing body 140A and the second housing body 140B before being assembled, and the first housing body 140A and the second housing body 140B are assembled while being rotated relative to each other, so that the twisted wire pair 10A is pushed and folded by the first housing body 140A and the second housing body 140B. Therefore, in the same manner as the housing 40 of the embodiment, the housing 140 rotates the second housing body 140B together with the wiring twisted wire portion, which becomes a part of the second twisted wire portion side 10A2 after folding back the twisted wire pair 10A, relative to the first housing body 140A between an open position of the first housing body 140A and the second housing body 140B where the wiring twisted wire portion is wired to the second housing body 140B, and a closed position of the first housing body 140A and the second housing body 140B as an assembly completion position. In other words, the housing 140 rotates the second housing body 140B relative to the first housing body 140A between the open position of the first housing body 140A and the second housing body 140B where the twisted wire pair 10A is not folded back and the closed position of the first housing body 140A and the second housing body 140B where the twisted wire pair 10A is folded back. This housing 140 has a main body hinge portion (hereinafter referred to as "first hinge portion") 140C between first housing main body 140A and second housing main body 140B, which is responsible for the relative rotation thereof (FIGS. 11 to 15). Like first hinge portion 40C in the embodiment, this first hinge portion 140C is provided at a position where second housing main body 140B can rotate relative to first housing main body 140A between a closed position and an open position while a part of twisted pair wire 10A is routed between first housing main body 140A and second housing main body 140B. Furthermore, like the first hinge portion 40C of the embodiment, this first hinge portion 140C is provided at a position where the axial direction of the rotation shaft is perpendicular to the wiring direction of the twisted wire pair 10A when the first housing body 140A and the second housing body 140B are in the open position and the second housing body 140B and a pressure portion 140D1 (cover member 140D) described later are in the open position.Here, a living hinge is used for this first hinge portion 140C.

[0048] The first housing body 140A of this modification has terminal accommodating chambers 141 for each terminal fitting 130, which are roughly divided into a first accommodating portion 141a for accommodating the pair of insulation displacement bodies 131, 131 and a second accommodating portion 141b for accommodating the terminal connecting portion 132, as in the first housing body 40A of the embodiment (FIGS. 11 to 15). In the first housing body 140A, a first twisted wire portion side 10A1 of a twisted pair wire 10A in which a pair of insulation displacement bodies 131, 131 are pressure-welded to an electric wire 10 is arranged, as in the first housing body 40A of the embodiment.

[0049] The first accommodating portion 141a of the present modification may be a chamber formed for each terminal fitting 130, similar to the first accommodating portion 41a of the embodiment, or may be a chamber in which a pair of pressure contact bodies 131, 131 of a plurality of terminal fittings 130 are collectively accommodated. Similarly to the first accommodating portion 41a of the embodiment, the first accommodating portion 141a of the present modification accommodates the electric wire 10 on the first twisted wire portion side 10A1 of the twisted wire pair 10A that is pressure-welded to the pair of pressure contact bodies 131, 131 when the first housing body 140A and the second housing body 140B are in the assembly completion position (closed position). Like the first accommodating section 41a of the embodiment, this first accommodating section 141a has an opening (hereinafter referred to as the "first opening") 141c for inserting the arranged twisted wire section that becomes the first twisted wire section side 10A1 of the twisted pair wire 10A after folding back, and an opening (hereinafter referred to as the "second opening") 141d that is perpendicular to the first opening 141c and serves as an electric wire outlet for drawing out the first twisted wire section side 10A1 to the outside of the housing 140 (FIGS. 11 to 15). However, the second opening 141d of this modification is formed to open in a direction perpendicular to the direction of fitting and connecting the terminal connecting section 132 to the counterpart terminal connecting section. Furthermore, the first accommodating portion 141a of this modified example has an opening (hereinafter referred to as the "third opening") 141e that is perpendicular to the first opening 141c and opposed to the second opening 141d with a gap therebetween, and that allows the fold point 10A3 side of the first twisted wire portion side 10A1 to be pulled out to the outside (Figures 11 to 15).

[0050] The second accommodating portions 141b of this modified example are formed for each terminal metal fitting 130, similar to the second accommodating portions 41b of the embodiment.

[0051] The second housing body 140B of this modification has an electric wire routing chamber 142 in which the second twisted wire portion side 10A2 of the twisted pair wire 10A is routed, similarly to the second housing body 40B of the embodiment (FIGS. 11 to 13 and 15). The electric wire routing chamber 142 has an opening (hereinafter referred to as a "first opening") 142a for inserting the routed twisted wire portion that becomes the second twisted wire portion side 10A2 of the twisted pair wire 10A after folding back, and an opening (hereinafter referred to as a "second opening") 142b that is perpendicular to the first opening 142a and serves as an electric wire outlet for drawing out the second twisted wire portion side 10A2 to the outside of the housing 140, similarly to the electric wire routing chamber 42 of the embodiment (FIGS. 11 to 13 and 15). However, the second opening 142b of this modified example is formed to open in a direction perpendicular to the direction in which the terminal connection portion 132 is fitted and connected to the counterpart terminal connection portion.

[0052] In the housing 140 of this modified example, similarly to the housing 40 of the embodiment, when the first housing body 140A and the second housing body 140B are in the completed assembly position (closed position), the first accommodating portion 141a of the terminal accommodating chamber 141 and the wire routing chamber 142 are arranged opposite each other via their first openings 141c, 142a, while the second openings 141d, 142b open in a direction perpendicular to the mating connection direction of the terminal connection portion 32 (Figures 10 and 111). Therefore, in this housing 140, when the first housing body 140A and the second housing body 140B are in the completed assembly position (closed position), the first twisted wire portion side 10A1 of the twisted pair wire 10A in the first accommodating portion 141a and the second twisted wire portion side 10A2 of the twisted pair wire 10A in the wire routing chamber 142 are accommodated in an opposing arrangement, and the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 are pulled out from the second openings 141d, 142b in a direction perpendicular to the mating connection direction of the terminal connection portion 132.

[0053] The housing 140 of this modification, like the housing 40 of the embodiment, has a pressure member 140D1 that is interposed between the first twisted wire portion 10A1 and the second twisted wire portion 10A2 of the folded twisted wire pair 10A in the assembled position (closed position) and applies pressure to the folding point 10A3 of the twisted wire pair 10A to maintain the folded shape of the twisted wire pair 10A (FIGS. 10, 12, and 14). The pressure member 140D1 is assembled to either the first housing body 140A or the second housing body 140B, like the pressure member 40D1 of the embodiment. In this modification, the pressure member 140D1 is assembled to the second housing body 140B. The housing 140 of this modification rotates the pressure member 140D1 relative to the second housing body 140B between a closed position where the pressure member 140D1 is disposed in the first opening 142a of the electric wire routing chamber 142 and an open position where the pressure member 140D1 opens the first opening 142a. Therefore, the housing 140 has a hinge portion (hereinafter referred to as the "second hinge portion") 140E between the second housing body 140B and the pressure member 140D1, which is responsible for the relative rotation (FIGS. 10, 12, and 14). The second hinge portion 140E is molded integrally with the first housing body 140A, the second housing body 140B, and the like as a living hinge, in the same manner as the second hinge portion 40E of the embodiment.

[0054] Like the housing 40 of the embodiment, the housing 140 of this modified example further has an elastic deformation portion 140D2 that applies pressure to the turn-around point 10A3 of the twisted wire pair 10A from the pressure applying portion 140D1 by a resilient force accompanying elastic deformation (Figures 11, 12, 14 and 15).

[0055] The pressure applying portion 140D1 and the elastic deformation portion 140D2 are provided on the cover member 140D, similarly to the housing 40 of the embodiment (FIGS. 10 to 12, 14 and 15). In the connector 120 and the electric wire with connector 2 of the present modification, although not shown, it is preferable that the pressure applying portion 140D1 applies pressure to the turn-back point 10A3 and presses the turn-back point 10A3 against the inner wall surface of the housing 140, similarly to the connector 20 and the electric wire with connector 1 of the embodiment. For example, the pressure applying portion 140D1 presses the turn-back point 10A3 against the inner wall surface arranged opposite to the first opening 142a of the second housing main body 140B with a gap therebetween. However, the cover member 140D of the present modification closes the first opening 142a of the electric wire routing chamber 142. Therefore, in housing 140 of this modified example, cover member 140D is rotated at second hinge portion 140E relative to first opening 142a between a closed position and an open position.

[0056] The cover member 140D of this modification has a rectangular flat-plate-like main body 140D3 connected to the second housing main body 140B via the second hinge portion 140E (FIGS. 11, 12, 14, and 15). In the cover member 140D shown here, a rectangular cantilevered piece formed by two notches in the main body 140D3 serves as the elastic deformation portion 140D2, and the free end of the elastic deformation portion 140D2 is formed into a cylindrical shape with the axis extending in the direction of the side of the free end (FIG. 12). In this cover member 140D, the cylindrical portion at the free end of the elastic deformation portion 140D2 is used as the pressure member 140D1. Here, the second hinge portion 140E is provided on the side of the main body 140D3 that is perpendicular to the side of the free end of the elastic deformation portion 140D2. The pressure applying portion 140D1 is arranged so that the axis of its cylinder faces in the same direction as the rotation axis of the first hinge portion 140C when the first housing body 140A, the second housing body 140B, and the cover member 140D are all in the assembly completion position (closed position).

[0057] In the connector 120 and the electric wire with connector 2 of this modified example, when the first housing body 140A and the second housing body 140B are in the open position and the second housing body 140B and the pressure portion 140D1 (cover member 140D) are in the open position, the wiring twisted wire portion that becomes the first twisted wire portion side 10A1 of the twisted pair wire 10A after folding back is accommodated in the first accommodating portion 141a of the terminal accommodating chamber 141, and the wiring twisted wire portion that becomes the second twisted wire portion side 10A2 of the twisted pair wire 10A after folding back is accommodated in the electric wire wiring chamber 142, and a portion of the twisted pair wire 10A is routed between the first housing body 140A and the second housing body 140B (FIGS. 12 and 13). At this time, in the first accommodating portion 141a, the pair of pressure contact bodies 131, 131 of the terminal fitting 130 are pressure-welded to the arranged twisted wire portion that becomes the first twisted wire portion side 10A1 of the twisted pair wire 10A after folding back. Thereafter, in the connector 120 and the connector-attached electric wire 2, the pressure member 140D1 (the cover member 140D) is rotated to the closed position relative to the second housing body 140B around the second hinge portion 140E (FIGS. 14 and 15). Then, in the connector 120 and the connector-attached electric wire 2, the second housing body 140B and the pressure member 140D1 (the cover member 140D) are rotated to the closed position relative to the first housing body 140A together with the twisted pair wire 10A around the first hinge portion 140C (FIGS. 10 and 11). As a result, in the connector 120 and the electric wire with connector 2 of this modified example, the twisted pair wire 10A is folded back starting from the folding back point 10A3 pressed by the pressing portion 140D1. Here, the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 of the folded back twisted pair wire 10A are drawn out in a direction perpendicular to the fitting connection direction of the terminal connection portion 32 to the counterpart terminal connection portion.

[0058] As described above, in the connector 120 and the electric wire with connector 2 of this modified example, as in the connector 20 and the electric wire with connector 1 of the embodiment, the twisted pair wire 10A is accommodated in the housing 140 while the folded shape is maintained by the pressure applying portion 140D1, so that the twist of the two electric wires 10 of the twisted pair wire 10A is less likely to be untwisted, and deterioration of communication performance can be suppressed.

[0059] Furthermore, in the connector 120 and the electric wire with connector 2 of this modified example, as in the connector 20 and the electric wire with connector 1 of the embodiment, when the pressure applying portion 140D1 applies pressure to the fold-back point 10A3, the reaction force received by the pressure applying portion 140D1 from the fold-back point 10A3 can be absorbed by the elastic deformation portion 140D2. Therefore, the untwisting of the twisted pair wire 10A can be suppressed while ensuring the durability of the twisted pair wire 10A, the pressure applying portion 140D1, and the second hinge portion 140E, and a deterioration in communication performance can be suppressed.

[0060] Furthermore, in the connector 120 and the electric wire with connector 2 of this modified example, similarly to the connector 20 and the electric wire with connector 1 of the embodiment, the pressure applying portion 140D1 has an arcuate surface along which the fold point 10A3 is aligned, and the curvature of the arcuate surface is set to a value that does not generate excessive bending stress at the fold point 10A3, thereby suppressing deterioration in durability and communication performance.

[0061] [Variation 2] 17 to 20, reference numeral 3 denotes a connector-attached electric wire of this modified example. This connector-attached electric wire 3 is obtained by replacing the connector 20 in the connector-attached electric wire 1 of the above-described embodiment with a connector 220 described below.

[0062] A connector 220 of this modified example includes a terminal fitting 230 and a housing 240, similar to the connector 20 of the embodiment (FIGS. 18 to 20).

[0063] The terminal fitting 230 of this modification has a pair of insulation displacement bodies 231, 231 and a terminal connection portion 232 similar to the terminal fitting 30 of the embodiment (FIGS. 18 and 20). Like the terminal fitting 30 of the embodiment, this terminal fitting 230 is formed so that the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 of the twisted pair wire 10A are pulled out from the housing 240 in a direction opposite to the mating connection direction of the terminal connection portion 232. Therefore, in the connector-attached electric wire 3 of this modification, like the connector-attached electric wire 1 of the above-mentioned embodiment, the pulling direction of the twisted pair wire 10A pulled out from the trunk line (not shown) is the mating connection direction of the connector 220.

[0064] Similarly to the terminal fitting 30 of the embodiment, the terminal fitting 230 of this modified example also has a flat connecting portion 233 connecting the pair of insulation displacement bodies 231, 231 and the terminal connecting portion 232. However, unlike the terminal fitting 30, the pair of insulation displacement bodies 231, 231 and the terminal connecting portion 232 protrude in the same direction when viewed from the connecting portion 233 (FIGS. 18 and 20). Here, the pair of insulation displacement bodies 231, 231 and the terminal connecting portion 232 protrude in the same direction from one flat surface of the connecting portion 233.

[0065] The housing 240 of this modification has a first housing body 240A and a second housing body 240B that are assembled to each other, similar to the housing 40 of the embodiment (FIGS. 17 to 20). However, in the housing 240 of this modification, the twisted pair 10A is accommodated in the second housing body 240B in a folded state. That is, the second housing body 240B of this modification accommodates the twisted pair 10A folded back from a folding point 10A3 on the first twisted wire section side 10A1 and the second twisted wire section side 10A2, and is assembled to the first housing body 240A with the folded twisted pair 10A accommodated therein. In the housing 240 of this modified example, a second housing body 240B in which the twisted pair wire 10A is housed is assembled to a first housing body 240A, so that a pair of pressure-contact bodies 231, 231 are pressure-contacted to the wire 10 on the first twisted wire portion side 10A1 of the twisted pair wire 10A.

[0066] Specifically, the first housing body 240A of the present modification has terminal accommodating chambers 241 for each terminal fitting 230, which are roughly divided into a first accommodating portion 241a for accommodating a pair of insulation displacement bodies 231, 231 and a second accommodating portion 241b for accommodating a terminal connecting portion 232, like the first housing body 40A of the embodiment (FIGS. 18 to 20). However, in the terminal accommodating chambers 241 of the present modification, the terminal fittings 230 for each electric wire 10 of the twisted pair wire 10A are accommodated side by side with the pair of insulation displacement bodies 231, 231 exposed.

[0067] The first accommodating portion 241a of this modification is formed as a chamber that accommodates the pair of insulation displacement bodies 231, 231 of the terminal fittings 230 for each electric wire 10 of the twisted pair wire 10A in an exposed state together (FIG. 19). The housing 240 of this modification has the second housing body 240B assembled into the first accommodating portion 241a, whereby the pair of insulation displacement bodies 231, 231 are pressure-welded to the electric wire 10 on the first twisted wire portion side 10A1 of the twisted pair wire 10A in the second housing body 240B.

[0068] The second accommodating portions 241b of this modified example are formed for each terminal metal fitting 230, similar to the second accommodating portions 41b of the embodiment.

[0069] Further, the second housing body 240B of this modification has a first electric wire routing section 240B1 in which the first twisted wire portion side 10A1 of the twisted pair wire 10A is routed, and a second electric wire routing section 240B2 which is assembled to the first electric wire routing section 240B1 and in which the second twisted wire portion side 10A2 of the twisted pair wire 10A is routed (FIGS. 17 to 25). In the second housing body 240B, when the first electric wire routing section 240B1 and the second electric wire routing section 240B2 are in the assembly completion position, the twisted pair wire 10A is folded back in a U-shape starting from the folding back point 10A3 (FIGS. 17 to 20).

[0070] In the second housing body 240B, a part of the twisted pair 10A before being folded back is routed between the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 before being assembled, and the twisted pair 10A is folded back in conjunction with the assembly operation of the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2. Here, the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 are assembled while being rotated relative to each other, so that the twisted pair 10A is pushed and moved by the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 and folded back. This second housing body 240B rotates the second wire routing section 240B2 together with its wiring twisted wire portion relative to the first wire routing section 240B1 between an open position of the first wire routing section 240B1 and the second wire routing section 240B2, in which the wiring twisted wire portion that becomes part of the first twisted wire section side 10A1 after folding back in the twisted pair wire 10A is routed to the first wire routing section 240B1, and a closed position of the first wire routing section 240B1 and the second wire routing section 240B2, which is the assembly completion position. That is, the second housing main body 240B rotates the first electric wire routing portion 240B1 relative to the second electric wire routing portion 240B2 between an open position of the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 where the twisted pair wire 10A is not folded back and a closed position of the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 where the twisted pair wire 10A is folded back. Therefore, the second housing main body 240B has a hinge portion (hereinafter referred to as a "first hinge portion") 240B3 between the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 for controlling the relative rotation (FIGS. 18 and 20 to 25). The first hinge portion 240B3 is provided at a position where the second electric wire routing portion 240B2 can rotate relative to the first electric wire routing portion 240B1 between the closed position and the open position while a part of the twisted pair 10A is routed between the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2. Here, a living hinge is used for the first hinge portion 240B3.

[0071] In this second housing body 240B, the first twisted wire portion side 10A1 of the twisted pair wire 10A is arranged in a first wire routing chamber 242 of the first wire routing portion 240B1, and the second twisted wire portion side 10A2 of the twisted pair wire 10A is arranged in a second wire routing chamber 243 of the second wire routing portion 240B2 (Figures 17 to 25).

[0072] In the first electric wire routing chamber 242, the routed twisted wire portion that becomes the first twisted wire portion side 10A1 of the twisted pair wire 10A after folding back is inserted from an opening (hereinafter referred to as the "first opening") 242a (FIGS. 21 to 23). The first twisted wire portion side 10A1 of the twisted pair wire 10A is pulled out to the outside of the first electric wire routing chamber 242 from an opening (hereinafter referred to as the "second opening") 242b that is perpendicular to the first opening 242a (FIGS. 17 to 20). The second opening 242b is used as an electric wire outlet for pulling out the first twisted wire portion side 10A1 to the outside of the housing 240.

[0073] In the second electric wire routing chamber 243, the routed twisted wire portion that becomes the second twisted wire portion side 10A2 of the twisted pair wire 10A after folding back is inserted from an opening (hereinafter referred to as the "first opening") 243a (FIGS. 21 to 23). The second twisted wire portion side 10A2 of the twisted pair wire 10A is pulled out to the outside of the second electric wire routing chamber 243 from an opening (hereinafter referred to as the "second opening") 243b that is perpendicular to the first opening 243a (FIGS. 17 to 20). The second opening 243b is used as an electric wire outlet for pulling out the second twisted wire portion side 10A2 to the outside of the housing 240.

[0074] In this second housing main body 240B, when the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 are in the completed assembly position (closed position), the first electric wire routing chamber 242 and the second electric wire routing chamber 243 are arranged opposite each other via their first openings 242a, 243a, and their second openings 242b, 243b open in the same direction (Figures 17 to 20). Therefore, in the second housing body 240B, when the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 are in the assembly completion position (closed position), the first twisted wire portion side 10A1 of the twisted pair wire 10A in the first electric wire routing chamber 242 and the second twisted wire portion side 10A2 of the twisted pair wire 10A in the second electric wire routing chamber 243 are accommodated in an opposing arrangement state, and the first twisted wire portion side 10A1 and the second twisted wire portion side 10A2 are pulled out in the same direction from the second openings 242b, 243b. The second housing body 240B shown here is assembled to the first accommodation portion 241a of the first housing body 240A so that the second openings 242b, 243b open in the opposite direction to the fitting connection direction of the terminal connection portion 232 to the counterpart terminal connection portion.

[0075] Furthermore, when the second housing body 240B is in the assembled position (closed position), it is interposed between the first twisted wire portion 10A1 and the second twisted wire portion 10A2 of the folded twisted wire pair 10A, and applies pressure to the folding point 10A3 of the twisted wire pair 10A to maintain the folded shape of the twisted wire pair 10A. 41 (FIG. 18 and FIG. 20 to FIG. 25). 41 The second housing body 240B shown here has a pressure member 240B 41 a closed position in which the pressure member 240B is disposed in the first opening 242a of the first electric wire routing chamber 242; 41 between the pressure applying portion 240B and the open position where the first opening 242a is opened. 41 The second hinge portion 240B5 has a hinge portion (hereinafter, referred to as a "second hinge portion") 240B5 that rotates the first electric wire routing portion 240B1 relative to the first electric wire routing portion 240B1 (FIG. 21). Here, a living hinge is used for the second hinge portion 240B5.

[0076] Pressurizing section 240B 41The pressure member 240B is pressed by the elastic force caused by the elastic deformation in the same manner as the pressure member 40D1 of the embodiment. 41 The elastic deformation portion 240B applies pressure to the turn-back point 10A3 of the twisted pair 10A. 42 The cover member 240B4 of this modification is a member for closing the first opening 242a of the first electric wire routing chamber 242, and is a rectangular flat-plate-shaped main body 240B connected to the second hinge portion 240B5. 43 (FIGS. 17 to 21, 24 and 25). The second hinge portion 240B5 shown here has a first electric wire routing portion 240B1 and a main body 240B 43 The cover member 240B4 shown here is formed in the same manner as the cover member 40D of the embodiment. In the connector 220 and the electric wire with connector 3 of this modification, the pressing portion 240B is formed in the same manner as the connector 20 and the electric wire with connector 1 of the embodiment. 41 applies pressure to the turning point 10A3, and the pressure applying portion 240B 41 It is preferable that the folded portion 10A3 is pressed against the inner wall surface of the second housing main body 240B. 41 The folding point 10A3 is pressed against an inner wall surface arranged to face, with a gap therebetween, the first opening 243a of the second electric wire routing portion 240B2 of the second housing main body 140B (FIG. 18).

[0077] In the housing 240 of this modification, the second housing body 240B is assembled into the first accommodating portion 241a of the first housing body 240A, whereby the pair of crimping bodies 231, 231 of the first accommodating portion 241a are brought into pressure contact with the electric wire 10 in the first electric wire routing chamber 242 of the first electric wire routing portion 240B1. For this reason, the first electric wire routing portion 240B1 is formed so that, at the assembly completion position of the first housing body 240A and the second housing body 240B, the pair of crimping bodies 231, 231 of the first accommodating portion 241a are inserted into the first electric wire routing chamber 242, and the pair of crimping bodies 231, 231 are brought into pressure contact with the electric wire 10 on the first twisted wire portion side 10A1 of the twisted pair wire 10A in the first electric wire routing chamber 242.

[0078] For example, the first electric wire routing portion 240B1 is provided with an insertion hole 244 for inserting the pair of pressure contact bodies 231, 231 into the first electric wire routing chamber 242 when the first housing body 240A and the second housing body 240B are in the assembly completion position (FIGS. 18, 20, 22, 23, and 25). The insertion hole 244 may be a through hole provided for each terminal fitting 230, or may be a single through hole for inserting the pair of pressure contact bodies 231, 231 of the multiple terminal fittings 230. The insertion hole 244 shown here is provided in a wall of the first electric wire routing portion 240B1 that faces the cover member 240B4 with a gap therebetween when the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 are in the assembly completion position (closed position).

[0079] Furthermore, the second housing body 240B is provided with holding portions 245 that hold the electric wire 10 on the first twisted wire portion side 10A1 of the twisted pair wire 10A at a distance in the axial direction in the first electric wire routing chamber 242 (FIGS. 18, 20 to 23, and 25). In this second housing body 240B, the electric wire 10 is held by a pair of holding portions 245 that are arranged at a distance from each other in the axial direction of the electric wire 10. In this second housing body 240B, the pair of pressure contact bodies 231, 231 inserted into the first electric wire routing chamber 242 is inserted between the pair of holding portions 245, and the pair of pressure contact bodies 231, 231 are pressure-contacted to the electric wire 10 between the pair of holding portions 245. The pair of holding portions 245 is provided for each electric wire 10 on the first twisted wire portion side 10A1. The pair of holding portions 245 are disposed with the insertion hole 244 therebetween.

[0080] For example, the holding portion 245 shown here is a first holding portion 245a provided on the first electric wire routing portion 240B1 and a main body 240B of the cover member 240B4. 43 and a second holding portion 245b provided on the first holding portion 245a and the second holding portion 245b (FIGS. 18, 20 to 23, and 25). When the cover member 240B4 is in the closed position with respect to the first opening 242a, the holding portion 245 sandwiches and holds the arranged twisted wire portion that becomes the first twisted wire portion side 10A1 of the twisted pair wire 10A after folding back between the first holding portion 245a and the second holding portion 245b. The holding portion 245 shown here includes a pair of first holding portions 245a that are spaced apart from each other and allow the electric wire 10 to be inserted therebetween, and a second holding portion 245b that is inserted between the pair of first holding portions 245a when the cover member 240B4 is in the closed position with respect to the first opening 242a, and sandwiches the electric wire 10 between the pair of first holding portions 245a together with the pair of first holding portions 245a. The pair of first holding portions 245a are provided on the wall of the first electric wire routing portion 240B1 in which the insertion hole 244 is formed.

[0081] In the connector 220 and the electric wire with connector 3, the first electric wire routing portion 240B1 and the second electric wire routing portion 240B2 are in the open position and the first electric wire routing portion 240B1 and the pressure portion 240B 41When the connector 220 and the cover member 240B4 are in the open position, the wiring and twisting portion that will become the first twisted portion side 10A1 of the twisted pair wire 10A after folding back is accommodated in the first wire routing chamber 242 of the first wire routing portion 240B1, and the wiring and twisting portion that will become the second twisted portion side 10A2 of the twisted pair wire 10A after folding back is accommodated in the second wire routing chamber 243 of the second wire routing portion 240B2, and a part of the twisted pair wire 10A is routed between the first wire routing portion 240B1 and the second wire routing portion 240B2 (FIGS. 21 to 23). Thereafter, in the connector 220 and the connector-attached electric wire 3, the second hinge portion 240B5 is used as the rotation center to rotate the pressure member 240B 41 The cover member 240B4 is rotated relative to the first electric wire routing portion 240B1 to the closed position (FIGS. 24 and 25). As a result, in the second housing body 240B, the routing twisted wire portion that becomes the first twisted wire portion side 10A1 of the twisted pair wire 10A after folding back is held by the holding portion 245.

[0082] Next, in the connector 220 and the electric wire with connector 3, the second electric wire routing portion 240B2 is rotated together with the twisted pair wire 10A by rotating the first electric wire routing portion 240B1 and the pressure portion 240B2 around the first hinge portion 240B3. 41 The second housing body 240B is rotated relative to the cover member 240B4 to the closed position (FIGS. 19 and 20). 41 The twisted pair 10A is folded back starting from the folding back point 10A3 which is pressurized from the outside.

[0083] In the connector 220 and the electric wire with connector 3, the second housing body 240B is assembled to the first accommodating portion 241a of the first housing body 240A (FIGS. 17 to 20). Accordingly, in the connector 220 and the electric wire with connector 3, the pair of pressure contact bodies 231, 231 of the terminal fitting 230 exposed in the first accommodating portion 241a enters the first electric wire routing chamber 242 of the first electric wire routing portion 240B1 from the insertion hole 244, and the pair of pressure contact bodies 231, 231 are pressure-welded to the electric wire 10 on the first twisted wire portion side 10A1 of the twisted pair wire 10A held by the holding portion 245 in the first electric wire routing chamber 242. In the connector 220 and the electric wire with connector 3 of this modified example, the assembly is completed in this manner.

[0084] As described above, in the connector 220 and the electric wire 3 with connector of this modification, the pressure applying portion 240B is provided in the same manner as in the connector 20 and the electric wire 1 with connector of the embodiment. 41 Since twisted pair 10A is accommodated in housing 240 while maintaining the folded shape, the twist of two electric wires 10 of twisted pair 10A is difficult to untwist, and deterioration of communication performance can be suppressed.

[0085] Furthermore, in the connector 220 and the electric wire 3 with connector of this modification, the pressure applying portion 240B is provided in the same manner as the connector 20 and the electric wire 1 with connector of the embodiment. 41 When the pressure member 240B applies pressure to the turning point 10A3, 41 The reaction force received from the turning point 10A3 is applied to the elastic deformation portion 240B 42 Since the twisted pair 10A and the pressure applying portion 240B can be absorbed by the 41 This makes it possible to suppress untwisting of twisted wire pair 10A while ensuring the durability of second hinge portion 240B5, thereby suppressing degradation of communication performance.

[0086] Furthermore, in the connector 220 and the electric wire 3 with connector of this modification, the pressure applying portion 240B is provided in the same manner as the connector 20 and the electric wire 1 with connector of the embodiment. 41has an arcuate surface along which fold point 10A3 is aligned, and the curvature of the arcuate surface is set to a value that does not generate excessive bending stress at fold point 10A3, thereby making it possible to suppress deterioration in durability and communication performance.

[0087] [Variation 3] Reference numeral 4 in Fig. 26 denotes a connector-equipped electric wire of this modified example. This connector-equipped electric wire 4 is obtained by replacing the connector 220 in the connector-equipped electric wire 3 of the modified example 2 described above with a connector 320 described below. The connector 320 of this modified example is obtained by replacing the housing 240 in the connector 220 of the modified example 2 with a housing 340 described below. The terminal fittings 230 are omitted in the figure. The housing 340 of this modified example is obtained by replacing the second housing main body 240B in the housing 240 of the modified example 2 with a second housing main body 340B described below.

[0088] Similar to the second housing body 240B of the second modification, the second housing body 340B of the present modification has a first electric wire routing section 340B1 in which the first twisted wire portion side 10A1 of the twisted pair wire 10A is routed, and a second electric wire routing section 340B2 which is assembled to the first electric wire routing section 340B1 and in which the second twisted wire portion side 10A2 of the twisted pair wire 10A is routed (FIGS. 26 to 28). In the second housing body 340B, when the first electric wire routing section 340B1 and the second electric wire routing section 340B2 are in the assembly completion position, the twisted pair wire 10A is folded back in a U-shape starting from a folding point 10A3. Furthermore, like the second housing body 240B of variant 2, the second housing body 340B of this variant rotates the second electric wire routing portion 340B2 together with its wiring and twisted wire portion relative to the first electric wire routing portion 340B1 between an open position of the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 in which the wiring and twisted wire portion that becomes part of the first twisted wire portion side 10A1 after folding back in the twisted pair wire 10A is routed to the first electric wire routing portion 340B1, and a closed position of the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 as the assembly completion position. That is, like the second housing body 240B of the second modification, the second housing body 340B has a hinge portion (hereinafter referred to as the "first hinge portion") 340B3 that rotates the second electric wire routing portion 340B2 relative to the first electric wire routing portion 340B1 between an open position of the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 where the twisted pair wire 10A is not folded back and a closed position of the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 where the twisted pair wire 10A is folded back (FIGS. 27 and 28). Here, a living hinge is used for the first hinge portion 340B3.

[0089] In this second housing body 340B, like the second housing body 240B of the modified example 2, the first twisted wire portion side 10A1 of the twisted pair wire 10A is routed in a first wire routing chamber 342 of the first wire routing portion 340B1, and the second twisted wire portion side 10A2 of the twisted pair wire 10A is routed in a second wire routing chamber 343 of the second wire routing portion 340B2 (FIGS. 27 and 28). However, in this second housing body 340B, the second wire routing portion 340B2 is formed as equivalent to the second wire routing portion 240B2 of the modified example 2, while the first wire routing portion 340B1 is formed as different from the first wire routing portion 240B1 of the modified example 2.

[0090] The first electric wire routing portion 340B1 of this modified example is a base portion 340B 11 and the base portion 340B3 is aligned along the axial direction of the first hinge portion 340B3. 11 The first to fourth cantilevered protrusions 340B protrude in the same direction from the 12 -340B 15 and (FIGS. 27 and 28).

[0091] First protrusion 340B 12 and the second protrusion 340B 13 The first protrusions 340B are disposed facing each other with a gap therebetween in a direction perpendicular to the direction of their own protrusion and the direction of the twisted pair 10A before being folded back, and hold the two electric wires 10 of the twisted pair 10A inserted into the gap from the openings on the free end side of each of the first protrusions 340B (FIGS. 27 and 28). 12 and the second protrusion 340B 13 is formed so that the gap is equal to the wire diameter of the wire 10.

[0092] Third protrusion 340B 14 and the fourth protrusion 340B 15 The first protrusion 340B 12 and the second protrusion 340B 13 and the first protrusion 340B is formed in the same manner as the combination of the first protrusion 340B. 12 and the second protrusion 340B 13 The first hinge portion 340B3 is disposed opposite the combination of the first hinge portion 340B4 with a gap therebetween (FIGS. 27 and 28).

[0093] In the first electric wire routing portion 340B1, the first protruding portion 340B 12 and the second protrusion 340B 13 From the gap between the third protrusion 340B 14 and the fourth protrusion 340B 15 The space spanning the gap between them serves as a first electric wire routing chamber 342.

[0094] Furthermore, the fourth protrusion 340B 15 The fourth protrusion 340B is also used as a pressure applying portion 340B4 that is interposed between the first twisted wire portion 10A1 and the second twisted wire portion 10A2 of the folded twisted pair 10A when the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 are in the assembly completion position (closed position) and applies pressure to the folding point 10A3 of the twisted pair 10A to maintain the folded shape of the twisted pair 10A (FIGS. 27 and 28). 15 The third protrusion 340B 14 The outer wall surface on the opposite side to the protruding direction is formed as an arcuate surface with the protruding direction as its axis.

[0095] In the first wire routing portion 340B1, each of the wires 10 of the twisted pair 10A inserted from each opening is connected to the first protrusion 340B1. 12 and the second protrusion 340B 13 and the third protrusion 340B 14 and the fourth protrusion 340B 15 Therefore, in the first electric wire routing portion 340B1, the first protruding portion 340B 12 and the second protrusion 340B 13 A tapered portion 344a is provided between the free end sides of the third protrusion 340B, and the distance between the tapered portion 344a increases toward the opening. 14 and the fourth protrusion 340B 15Between the free end sides of the first wire routing portion 340B1, tapered portions 344b are provided, the spacing of which increases toward the opening (FIGS. 27 to 29). As a result, in the first wire routing portion 340B1, the wires 10 of the twisted pair 10A inserted from the openings are guided by the tapered portions 344a and 344b one by one into the first protruding portion 340B1. 12 and the second protrusion 340B 13 and the third protrusion 340B 14 and the fourth protrusion 340B 15 It can be inserted between the two (Figure 29).

[0096] In the first electric wire routing portion 340B1, the first protruding portion 340B 12 and the second protrusion 340B 13 The two electric wires 10 of the twisted pair 10A are inserted into the gap from the opening of the third protrusion 340B. 14 and the fourth protrusion 340B 15 The two electric wires 10 of the twisted pair 10A are inserted into the gap from the opening of the first electric wire routing portion 340B1. 12 and the second protrusion 340B 13 and the third protrusion 340B 14 and the fourth protrusion 340B 15 Between the first protrusion 340B and the first wire routing portion 340B1, the two wires 10 of the twisted pair 10A are arranged in the insertion direction. 12 and the second protrusion 340B 13 The gap and the third protrusion 340B 14 and the fourth protrusion 340B 15 The gap holds the arranged twisted wire portion that becomes first twisted wire portion side 10A1 of twisted pair wire 10A after folding back.

[0097] In this connector 320 and connector-attached electric wire 4, when the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 are in the open position, the wiring twisted wire portion that becomes the first twisted wire portion side 10A1 of the twisted pair wire 10A after being folded back is accommodated in the first electric wire routing chamber 342 of the first electric wire routing portion 340B1, and the wiring twisted wire portion that becomes the second twisted wire portion side 10A2 of the twisted pair wire 10A after being folded back is accommodated in the second electric wire routing chamber 343 of the second electric wire routing portion 340B2, and a part of the twisted pair wire 10A is routed between the first electric wire routing portion 340B1 and the second electric wire routing portion 340B2 before assembly (FIGS. 27 and 28). Thereafter, in the connector 320 and the connector-attached electric wire 4, the first electric wire routing portion 340B1 is rotated together with the twisted pair 10A relative to the second electric wire routing portion 340B2 to the closed position with the first hinge portion 340B3 as the rotation center (FIG. 26). As a result, in the second housing main body 340B, the twisted pair 10A is folded back starting from the folding back point 10A3 pressed by the pressing portion 340B4.

[0098] In the connector 320 and the electric wire 4 with connector, the second housing body 340B is assembled to the first accommodating portion 241a of the first housing body 240A (FIG. 26). Accordingly, in the connector 320 and the electric wire 4 with connector, the pair of pressure contact bodies 231, 231 of the terminal fitting 230 exposed in the first accommodating portion 241a are inserted into the first protruding portion 340B. 12 and the third protrusion 340B 14 and the pair of pressure contact bodies 231, 231 are pressure-contacted to the electric wire 10 on the first twisted wire portion side 10A1 of the twisted pair wire 10A in the first electric wire routing chamber 342. In this manner, the assembly of the connector 320 and the connector-attached electric wire 4 of this modified example is completed.

[0099] As described above, in the connector 320 and the electric wire with connector 4 of this modified example, similarly to the connector 220 and the electric wire with connector 3 of modified example 2, the twisted pair wire 10A is accommodated in the housing 340 while the folded shape is maintained by the pressure applying portion 340B4, so that the twist of the two electric wires 10 of the twisted pair wire 10A is difficult to untwist, and deterioration of communication performance can be suppressed.

[0100] Furthermore, in the connector 320 and the electric wire with connector 4 of this modified example, like the connector 220 and the electric wire with connector 3 of modified example 2, the pressure applying portion 340B4 has an arcuate surface along which the fold point 10A3 is aligned, and the curvature of the arcuate surface is set to a value that does not generate excessive bending stress at the fold point 10A3, thereby suppressing deterioration in durability and communication performance. [Explanation of symbols]

[0101] 1,2,3,4 Wire with connector 10 Electric wire 10a Pressure welded part 10A twisted pair 10A1 1st twisted wire side 10A2 2nd stranded wire side 10A3 Turn Point 20,120 Connectors 30,130 Terminal fittings 31,131 Pressure welded body 40,140 Housing 40A, 140A First housing body 40B, 140B Second housing body 40C, 140C First hinge part (main body hinge part) 40D, 140D Cover material 40D1, 140D1 pressure section 40D2, 140D2 elastic deformation part 40E, 140E Second hinge part (hinge part) 41,141 Terminal chamber 41c, 141c 1st opening (opening) 42,142 Wire Routing Room 42a, 142a 2nd opening (opening) 220,320 Connectors 230 Terminal fittings 231 Pressure Welding Body 240,340 Housing 240A 1st housing body 240B, 340B Second housing body 240B1, 340B1 1st wire wiring section 240B2, 340B2 2nd wire wiring section 240B4 Cover material 240B 41 ,340B4 pressure section 240B 42 Elastically deformable part 241 Terminal compartment

Claims

1. a terminal fitting provided with a pair of insulation displacement bodies for insulation displacement contacting a core wire of a pressure-displaced portion of an electric wire; a housing in which the terminal fittings for each of the electric wires are housed and in which a twisted pair wire formed by twisting two electric wires is housed while being folded back from a folding point toward a first twisted wire portion side and a second twisted wire portion side, Equipped with the housing has a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are accommodated side by side, and in which the first twisted wire portion side having the pair of insulation displacement bodies pressure-welded to the electric wires is arranged; a second housing body that is assembled to the first housing body and in which the second twisted wire portion side is arranged in an electric wire routing chamber; and a pressure section that is assembled to either the first housing body or the second housing body and is interposed between the first twisted wire portion side and the second twisted wire portion side of the folded-back twisted pair at a completion of assembly of the first housing body and the second housing body in which the terminal accommodating chamber and the electric wire routing chamber are arranged opposite each other with openings therebetween, and that applies pressure to the folding point of the twisted pair to maintain the folded shape of the twisted pair.

2. The housing has a body hinge portion provided between the first housing body and the second housing body, 2. The connector as described in claim 1, wherein the main body hinge portion is formed to enable the second housing body to rotate relatively to the first housing body together with the wiring twisted wire portion, which becomes part of the second twisted wire portion after folding back the twisted pair wire, between an open position of the first housing body and the second housing body in which the wiring twisted wire portion is wired to the second housing body, and a closed position of the first housing body and the second housing body which is the assembly completion position.

3. 3. The connector according to claim 1 or 2, characterized in that the housing has a hinge portion that rotates the pressure applying portion relative to the second housing body between a closed position in which the pressure applying portion is positioned at the opening of the electric wire routing chamber and an open position in which the pressure applying portion opens the opening of the electric wire routing chamber.

4. 4. The connector according to claim 1, wherein the housing has an elastically deformable portion that applies pressure to the folded point from the pressure portion by a resilient force caused by elastic deformation.

5. 5. The connector according to claim 4, wherein the pressure member and the elastic deformation member are provided on a cover member that closes the opening of the electric wire routing chamber.

6. a terminal fitting provided with a pair of insulation displacement bodies for insulation displacement contacting a core wire of a pressure-displaced portion of an electric wire; a housing in which the terminal fittings for each of the electric wires are housed and in which a twisted pair wire formed by twisting two electric wires is housed while being folded back from a folding point toward a first twisted wire portion side and a second twisted wire portion side, Equipped with the housing includes a first housing body having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are accommodated side by side with the pair of insulation displacement bodies exposed, and a second housing body in which the twisted pair is accommodated by being folded back from the folding point to the first twisted wire section side and the second twisted wire section side, and which is assembled to the first housing body; the second housing body includes a first electric wire routing portion in which the first twisted wire portion side of the twisted pair is arranged and which presses the pair of pressure contacts against the electric wires on the first twisted wire portion side when assembly with the first housing body is completed; a second electric wire routing portion assembled to the first electric wire routing portion and in which the second twisted wire portion side of the twisted pair is arranged; and a pressure applying portion interposed between the first twisted wire portion side and the second twisted wire portion side of the twisted pair in a folded shape when assembly of the first electric wire routing portion and the second electric wire routing portion is completed, and which applies pressure to the folded point of the twisted pair to maintain the folded shape of the twisted pair.

7. a terminal fitting provided with a pair of insulation displacement bodies for insulation displacement contacting a core wire of a pressure-displaced portion of an electric wire; A twisted pair wire is made by twisting two electric wires together. a housing in which the terminal fittings for each of the electric wires are housed and in which the twisted pair wire is housed while being folded back from a folding point to a first twisted wire portion side and a second twisted wire portion side; Equipped with the housing has a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are accommodated side by side, and in which the first twisted wire portion side having the pair of insulation displacement bodies pressure-welded to the electric wires is arranged; a second housing body that is assembled to the first housing body and in which the second twisted wire portion side is arranged in an electric wire routing chamber; and a pressure applying section that is assembled to either the first housing body or the second housing body and is interposed between the first twisted wire portion side and the second twisted wire portion side of the twisted pair in a folded shape at a completion of assembly of the first housing body and the second housing body in which the terminal accommodating chamber and the electric wire routing chamber are arranged opposite each other with openings therebetween, and that applies pressure to the folding point of the twisted pair to maintain the folded shape of the twisted pair.

8. a terminal fitting provided with a pair of insulation displacement bodies for insulation displacement contacting a core wire of a pressure-displaced portion of an electric wire; A twisted pair wire is made by twisting two electric wires together. a housing in which the terminal fittings for each of the electric wires are housed and in which the twisted pair wire is housed while being folded back from a folding point to a first twisted wire portion side and a second twisted wire portion side; Equipped with the housing includes a first housing body having a terminal accommodating chamber in which the terminal fittings for each of the electric wires of the twisted pair are accommodated side by side with the pair of insulation displacement bodies exposed, and a second housing body in which the twisted pair is accommodated by being folded back from the folding point to the first twisted wire section side and the second twisted wire section side, and which is assembled to the first housing body; the second housing main body includes a first electric wire routing portion in which the first twisted wire portion side of the twisted pair is arranged and which presses the pair of pressure contacts against the electric wires on the first twisted wire portion side when the second housing main body is in an assembly completion position; a second electric wire routing portion assembled to the first electric wire routing portion and in which the second twisted wire portion side of the twisted pair is arranged; and a pressure applying portion interposed between the first twisted wire portion side and the second twisted wire portion side of the twisted pair in a folded shape when the first electric wire routing portion and the second electric wire routing portion are in an assembly completion position, and applying pressure to the folded point of the twisted pair to maintain the folded shape of the twisted pair.

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