JP2005209540A - Crimp type contact, connector and connector with electric wire using this, as well as manufacturing method of connector with electric wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector housing in which deformation of the connector housing accompanied with a press fitting of a sheathed electric wire is suppressed. <P>SOLUTION: Each individual upper end part of a pair of electric wire pinching parts 13, and each individual lower end part of a pair of electric wire introduction parts 14 are joined by a pair of joint components 15 so that the electric wire introduction parts 14 can be deformed elastically (for example, bending or curvature) into the inner side in relation to the electric wire pinching parts 13 compared with the initial state. In a state that the sheathed electric wires 5 are pinched by the pair of electric wire pinching parts 13, by the effect of reaction force from the inner faces 50A of the contact housing part 3 received by the contacting faces 51 of the pair of electric wire introduction parts 14, the pair of joint parts 15 are retained in a bent or curved state, thus the pair of electric wire introduction parts 14 becomes to be in a bent or curved state to the inner side in relation to the pair of electric wire pinching parts 13 compared with the initial state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a press contact contact that accepts press-fitting of a covered electric wire and is electrically connected to the covered electric wire, a connector and a connector with an electric wire using the contact, and a method for manufacturing the connector with an electric wire.

  For example, as disclosed in Patent Document 1, the press contact type contact includes a pair of electric wire holding portions (a pair of side plates) for pressing and holding the core wire of the covered electric wire. In the process in which the covered electric wire is press-fitted into the pair of electric wire holding portions, the insulation coating of the covered electric wire is cut to expose the core wire, and the exposed core wire is press-fitted and clamped by the pair of electric wire holding portions. An electrical connection between the contact and the covered wire is achieved.

Usually, the press contact type contact is accommodated in a resin connector housing. A connector using such a pressure contact type contact (so-called pressure contact type connector) is coupled to a mating connector connected to a wiring board or the like, whereby the covered electric wire and the wiring board or the like are electrically connected.
FIG. 11 is an enlarged cross-sectional view of a part of a conventional pressure contact connector 80.
Referring to FIG. 11, the press contact type connector 80 includes a connector housing 81 and a press contact type contact 83 housed in a contact housing portion 82 formed in the connector housing 81.

  The press contact type contact 83 is coupled to each base end side so that each distal end side is swingable, and is elastically cantilever-supported, and the covered electric wire 5 is paired with a pair of wire sandwiching sections 84. It has a pair of electric wire introduction parts 85 for guiding between. In order to expose the core wire 5 </ b> A by cutting the insulating coating 5 </ b> B of the covered electric wire 5 along the press-fitting of the covered electric wire 5 on each inner side of the pair of electric wire introduction portions 85 (sides on the opposite electric wire introduction portion 85 side). Is formed. The pair of electric wire clamping portions 84 are formed with a substantially uniform width from the proximal end side to the distal end side, and are opposed to each other with an interval smaller than the outer diameter of the core wire 5A of the covered electric wire 5.

When the pressure contact type contact 83 is accommodated in the contact accommodating portion 82 and the covered electric wire 5 is not press-fitted, the pressure contact type contact 83 is in a state as shown by a solid line in FIG. The side wall 81A is in contact with the outer side of the press contact type contact 83 as indicated by a broken line in FIG.
When the core wire 5A of the covered electric wire 5 is press-fitted between the pair of electric wire holding portions 84 from this state, the pair of electric wire holding portions 84 are elastically expanded and deformed as shown by broken lines in FIG. Each tip swings outward (in FIG. 11, only the deformation mode of the right side portion of the pressure contact 83 is shown, but the left side portion also swings outward). In a state where the covered electric wire 5 is sandwiched between the pair of wire sandwiching portions 84, the inner wall surface 81 </ b> B of the contact accommodating portion 82 is pressed by the outer sides of the wire sandwiching portion 84 and the wire introducing portion 85, and the side wall 81 </ b> A of the connector housing 81 is As shown by the solid line in FIG. 11, the elastically expands and deforms outward.
JP 2001-143773 A

When the side wall 81A of the connector housing 81 is elastically deformed with the press-fitting of the covered wire 5 into the press contact type contact 83 as in the above-described prior art, the side wall 81A may be damaged.
In particular, when a plurality of the press contact contacts 83 are arranged side by side in the width direction (left and right direction in FIG. 11), and a plurality of the covered electric wires 5 can be collectively pressed to the plurality of press contact contacts 83. In other words, a plurality of partition walls that divide between the plurality of contact accommodating portions 82 are expanded at the same time, and there is a high possibility that the connector housing 81 is significantly warped and damaged.

The present invention has been made under such a background, and provides a pressure contact type contact capable of suppressing deformation of a connector housing accompanying press fitting of a covered wire, a connector using the same, a connector with a wire, and a method for manufacturing a connector with a wire. The purpose is to provide.
Another object of the present invention is to provide a press contact type contact that can better hold a press-fitted coated electric wire, a connector and a connector with an electric wire using the same, and a method for manufacturing the connector with an electric wire.

  In order to achieve the above object, the invention according to claim 1 is a press contact type contact that is accommodated in a contact accommodating portion of a connector housing, accepts press fitting of a covered electric wire, and is electrically connected to the covered electric wire. A pair of electric wire clamping portions for being joined at each base end side so as to be swingable and elastically cantilevered, and for pressing and clamping the core wire of the covered electric wire by the inner sides facing each other; and The covered electric wire having an electric wire receiving inner side forming an electric wire insertion opening for receiving a covered electric wire at each distal end side and continuing to the inner side of the pair of electric wire holding portions and being received by the electric wire insertion port A covering cutting portion that has a guide inner side that guides between the pair of electric wire clamping portions on each base end side, and cuts the insulating coating of the covered electric wire and exposes the core wire in accordance with the press-fitting of the covered electric wire. Wire receiving inner side A pair of electric wire introduction portions between the guide inner side and the inner wall surface of the contact housing portion in contact with the inner wall surface of the contact accommodating portion in a state where the covered electric wire is held between the pair of electric wire holding portions. A contact surface that receives a reaction force is provided on the outer side on each tip side, and the pair of wire clamping portions elastically expand and deform with the press-fitting of the covered wires, and the tips swing outward. A clearance forming surface that secures a clearance between the inner surface of the contact accommodating portion and the outer wall on the proximal end side to allow a clearance for allowing the proximal end of the electric wire introduction portion to swing outward. A pair of electric wire introduction portions, each distal end side of the pair of electric wire holding portions, and each proximal end side of the pair of electric wire introduction portions, the electric wire introduction portion with respect to the electric wire holding portion from an initial state. Can be elastically deformed into a bent or curved state that is bent or curved inward In the state where the covered electric wires are clamped between the pair of electric wire holding portions, the bending / curving is caused by a reaction force that the contact surfaces of the pair of electric wire introduction portions receive from the inner wall surface of the contact accommodating portion. It is a press-contacting type | mold contact characterized by including a pair of joint part hold | maintained in a state.

  According to this configuration, in a state where the covered electric wire is held between the pair of electric wire holding portions, the pair of joint portions are bent and curved by the reaction force that the contact surfaces of the pair of electric wire introduction portions receive from the inner wall surface of the contact housing portion. The pair of electric wire introduction portions are bent or curved inward from the initial state with respect to the pair of electric wire holding portions. Therefore, since the inner wall surface of the contact accommodating portion that abuts against the abutment surface of the pair of electric wire introduction portions can withstand outward pressing, the expansion deformation is suppressed, and as a result, the press fitting of the covered electric wire is prevented. The deformation of the accompanying connector housing can be suppressed.

  In addition, since a clearance is secured between the clearance forming surface formed on the outer side of the base end side of the pair of electric wire introduction portions and the inner wall surface of the contact accommodating portion, the pair of electric wires is attached as the covered electric wires are press-fitted. When the introduction part bends or curves inward due to the reaction force received from the inner wall surface of the contact housing part, the outer side of the proximal end side of the wire introduction part (the wire clamping part side with respect to the contact surface) is the inner side of the contact housing part. It is possible to prevent the wall surface from being pressed. Therefore, the deformation of the connector housing accompanying the press-fitting of the covered electric wire can be more effectively suppressed.

The press contact type contact includes the pair of electric wire holding portions, the pair of electric wire introduction portions, and the pair of joint portions, respectively, so as to face each other along a direction intersecting an opposing direction of the pair of electric wire holding portions. It may be configured to include two arranged pressure contact pieces and a connecting portion that connects the ends of the wire introduction portions facing each other in the opposing direction of the two pressure contact pieces.
The invention according to claim 2 is characterized in that notches for facilitating elastic deformation of the pair of joint portions into the bent / curved state are formed on the outer sides of the pair of joint portions. The press contact type contact according to claim 1.

According to this configuration, the pair of joint portions are easily elastically deformed into a bent / curved state by the notch formed on the outer side thereof, so that the pair of electric wire introduction portions are separated from the inner wall surface of the contact accommodating portion. It tends to bend or curve inward by the reaction force received. Therefore, the deformation of the connector housing accompanying the press-fitting of the covered electric wire can be further effectively suppressed.
According to a third aspect of the present invention, there is provided the press contact type contact according to the first or second aspect and the contact accommodating portion, and for inserting the covered electric wire press-fitted into the press contact type contact accommodated in the contact accommodating portion. And a connector housing in which a wire passage is formed.

According to this configuration, it is possible to provide a connector that exhibits the same effect as that of the first or second aspect of the invention.
According to a fourth aspect of the present invention, the connector housing is detachable from the main body having the contact housing portion and the main body, and the contact housing is formed in the state where the wire passage is formed by being attached to the main body. The connector according to claim 3, further comprising a cap that closes the portion.

  According to this configuration, since the contact housing portion is closed by the cap, foreign matter can be prevented from entering the contact housing portion from the outside, and the covered electric wire sandwiched between the pair of wire sandwiching portions can be in a direction opposite to the press-fitting direction. Can be prevented from coming off from the contact housing portion (electric wire passage). Therefore, the connector which can hold | maintain the press-fit covered electric wire more favorably can be provided.

In addition, since the deformation of the connector housing due to the press-fitting of the covered electric wire is suppressed, the cap can be favorably attached to the connector housing, and the attached state can be reliably maintained.
According to a fifth aspect of the present invention, there is provided an inner wall surface of the contact accommodating portion for restricting displacement of the pair of electric wire clamping portions of the press contact type contact accommodated in the contact accommodating portion along the electric wire passage. The connector according to claim 3 or 4, wherein a restricting portion is formed.

  According to this configuration, when an external force along the wire passage is applied to the covered electric wire held between the pair of electric wire holding portions, the pair of electric wire holding portions are attached to the covered electric wire and shifted along the electric wire passage. Can be prevented. Therefore, it is possible to prevent a decrease in the clamping force of the covered electric wire by the pair of electric wire holding portions by deforming the pair of electric wire holding portions so as to be shifted in a direction intersecting with each other. The electric wire can be held better.

According to a sixth aspect of the present invention, there is provided the connector according to any one of the third to fifth aspects, and an inner side of the pair of electric wire clamping portions of the press contact type contact inserted in the electric wire passage and accommodated in the connector housing. And a covered electric wire in which a core wire is press-clamped.
According to this structure, the connector with an electric wire which has the same effect as the invention according to any one of claims 1 to 5 can be provided.

  The invention according to claim 7 is a method of manufacturing a connector with electric wires by press-contacting a covered electric wire to the connector according to any one of claims 3 to 5, wherein the connector housing is connected to the inner wall surface of the contact accommodating portion. The covered wire is press-fitted from the wire insertion port of the pressure contact type contact accommodated in the contact accommodating portion to the inner sides of the pair of wire sandwiching portions by a step of placing on a die that restricts the displacement of the wire and a pressure contact punch. By cutting the insulation coating of the covered electric wire by the covered cutting portion, the step of holding the core wire of the covered electric wire between the pair of electric wire holding portions, and the pair of electric wire holding portions by press-fitting the covered electric wire By elastically expanding and deforming, and applying a reaction force from the inner wall whose displacement is restricted by the die to the contact surface, To regulate the front end side of the displacement of the feeder inlet section, a method for producing the wired connector which comprises a step of elastically deforming the pair of joint portions to the bending-bending state.

  According to this configuration, the pair of electric wire clamping portions are elastically expanded and deformed by press-fitting the covered electric wire, and the reaction force from the inner wall surface of the contact accommodating portion whose displacement is restricted by the die acts on the contact surface. By doing so, the displacement of the distal end side of the electric wire introduction part is regulated, and the pair of joint parts are elastically deformed into a bent / curved state, and the pair of electric wire introduction parts are inside the initial state with respect to the pair of electric wire holding parts. Will be bent or curved. That is, at the stage where the covered electric wire is pressed and attached to the pressure contact type contact, the pair of electric wire introduction portions exerts a large pressing force on the inner wall surface of the contact housing portion, but the deformation of the inner wall surface of the contact housing portion is restricted by the die. Therefore, the connector housing is not greatly deformed when the covered electric wire is press-fitted. When the connector housing is removed from the die, the inner wall surface of the contact housing portion only needs to withstand a relatively weak spreading force received from the wire introduction portion, and the connector housing is not greatly deformed thereafter.

Embodiments of the present invention will be specifically described below with reference to the drawings.
FIG. 1 is a perspective view of a pressure contact type connector 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the pressure contact type connector 1. In addition, let the arrow D1 direction in FIG. 1 be the front.
Referring to FIGS. 1 and 2, this press-contact connector 1 includes a connector housing 2 made of a synthetic resin molded product, and a metal 2 housed in two contact housing portions 3 formed on the connector housing 2. One pressure contact type contact (terminal fitting) 4. The connector housing 2 has a substantially rectangular parallelepiped shape that is long in the vertical direction, and a main body 2A in which two contact accommodating portions 3 are formed side by side in the width direction (left-right direction) so as to extend downward from the upper surface thereof, And a cap 2B that can be attached to and detached from the upper surface of the main body 2A and can close the contact housing portion 3 by being attached to the upper surface of the main body 2A.

  With the cap 2B removed from the main body 2A, the covered electric wires 5 are arranged so as to extend in the front-rear direction above the two contact accommodating portions 3, and the ends of the respective covered electric wires 5 are accommodated in the corresponding contact accommodating portions 3. By press-fitting into the pressed contact 4, the core wires 5 </ b> A of the two covered electric wires 5 are pressed and clamped by the press contact 4 so as to be conductive. That is, this pressure contact type connector 1 is a two-pole pressure contact type connector in which two covered electric wires 5 are connected so as to be conductive, and a plurality of devices can be obtained by connecting the two covered electric wires 5 to different devices. Can achieve power supply.

  This pressure contact type connector 1 can be coupled to a mating connector (not shown) mounted on a wiring board, for example. The pressure contact type connector 1 is fitted into the mating connector disposed below the pressure contact type connector 1 from above, so that the pressure contact type contact 4 and the contact of the mating side connector come into contact with each other and are pressed by the pressure contact type connector 1. The covered electric wire 5 is electrically connected to the wiring board.

FIG. 3 is a perspective view of the pressure contact type contact 4. 4 is a six-face view of the press contact type contact 4. FIG. 4 (a) is a front view, FIG. 4 (b) is a plan view, FIG. 4 (c) is a bottom view, and FIG. Is a left side view, FIG. 4 (e) is a right side view, and FIG. 4 (f) is a rear view. In addition, let the arrow D2 direction in FIG. 3 be the front.
Referring to FIGS. 3 and 4, press contact type contact 4 is an integrated product formed by punching and bending a metal plate (for example, a plated copper plate). The pressure contact 4 includes a pressure contact portion 10 to which the covered electric wire 5 is pressure contacted, and a contact portion 11 that extends downward from the lower end of the pressure contact portion 10 and contacts a contact of a mating connector coupled from below. Including.

  The press contact portion 10 is arranged in parallel in the front-rear direction and includes two press contact pieces 12 for press-clamping the covered electric wire 5. Each press-contacting piece 12 is coupled at each lower end side (base end side) so that each upper end side (tip end side) can swing in the left-right direction, and is elastically cantilevered. A pair of electric wire introduction portions 14 for receiving the covered electric wire 5 press-fitted from above and guiding it between the pair of electric wire holding portions 13, and an upper end side of the pair of electric wire holding portions 13 and a pair of electric wire introduction portions 14 and a pair of joint portions 15 that are coupled to each lower end side so as to be elastically deformable. As for each electric wire introducing | transducing part 14 of the two press-contacting pieces 12, the front-end | tip parts of the electric wire introducing | transducing part 14 which opposes the front-back direction are mutually connected by the connection part 16. FIG.

  The upper ends of the inner sides of the pair of wire introduction portions 14 (sides on the side of the wire introduction portion 14 facing in the left-right direction) form a wire receiving inner side 14A extending substantially in the vertical direction. A wire larger than the outer diameter of the covered wire 5 is provided between the wire receiving inner sides 14A of the pair of wire introducing portions 14 facing in the left-right direction, and the wire can receive the covered wire 5 press-fitted from above. An insertion port 17 is formed.

  In addition, a covering cutting portion 14B extending inward (on the side of the wire introduction portion 14 facing in the left-right direction) is formed on each inner side of the pair of wire introduction portions 14 from the lower end of the wire reception inner side 14A downward. ing. An interval smaller than the outer diameter of the covered electric wire 5 is provided between the lower ends of the covered cutting portions 14B of the pair of electric wire introducing portions 14 facing in the left-right direction. Therefore, as the covered electric wire 5 received in the electric wire insertion port 17 is press-fitted downward, the outer peripheral surface comes into sliding contact with the coated cutting portion 14B, whereby the insulating coating 5B of the covered electric wire 5 is cut. The core wire 5A will be exposed. The coated cutting part 14B may be formed sharply so that the insulating coating 5B of the coated electric wire 5 can be cut more satisfactorily.

  Furthermore, a guide inner side 14 </ b> C is formed on each inner side of the pair of electric wire introduction parts 14, downward from the lower end of the covering cutting part 14 </ b> B and continuing to the inner side of the electric wire holding part 13. The guide inner side 14 </ b> C is gently convexly curved inward, and the distance between the guide inner sides 14 </ b> C of the pair of electric wire introduction portions 14 facing in the left-right direction is gradually reduced toward the lower side. The core wire 5A of the covered electric wire 5 exposed by cutting the insulating coating 5B at the covering cutting portion 14B passes between the guide inner sides 14C of the pair of electric wire introduction portions 14, and between the inner sides of the pair of electric wire holding portions 13. Will be guided to.

  Each electric wire clamping part 13 is formed in the taper shape so that a width | variety becomes narrow as it goes upwards (front-end | tip). A space smaller than the outer diameter of the core wire 5A of the covered electric wire 5 is provided between the inner sides of the pair of electric wire holding portions 13, thereby forming a slot 18 for pressing and holding the core wire 5A of the covered electric wire 5. Yes. Therefore, when the core wire 5A of the covered electric wire 5 is press-fitted into the slot 18, the pair of electric wire clamping portions 13 are elastically expanded and deformed, and the respective ends swing outward. As a result, the core wire 5A of the covered electric wire 5 is pressed and clamped by the elastic force of the pair of electric wire holding portions 13 trying to return to the initial state, and the core wire 5A of the covered electric wire 5 and the press contact type contact 4 are connected in a conductive manner ( (See FIG. 4 (a)).

A substantially arc-shaped cutout 19 is formed in the joint portion on the inner side of the pair of electric wire holding portions 13. As a result, the pair of electric wire clamping portions 13 can be easily expanded and deformed, and the stress concentration on the joint portion due to the expansion deformation of the pair of electric wire clamping portions 13 is suppressed, so that the fatigue of the press contact type contact 4 is reduced. It is possible to prevent breakage due to.
The pair of joint portions 15 are configured such that the upper end sides of the pair of electric wire holding portions 13 and the lower end sides of the pair of electric wire introduction portions 14 are inside the initial state with respect to the electric wire holding portion 13. It joins so that it can elastically deform (for example, bend | curve or curve) to the electric wire introduction part 14 side facing in the left-right direction. A substantially arc-shaped notch 15A is formed on each outer side of the pair of joint portions 15, and thereby the pair of joint portions 15 are more easily elastically deformed inward than in the initial state. However, even if a wedge-shaped notch, for example, is formed on each outer side of the pair of joint portions 15 instead of the substantially arc-shaped notches 15A, the pair of joint portions 15 are more easily elastically deformed inward than the initial state. can do.

When the press contact type contact 4 is press-fitted into the contact housing part 3 of the connector housing 2 at the lower end of the left and right outer sides of each press contact piece 12, the press contact type contact 4 is cut into the inner wall surface of the contact housing part 3. A press-fit protrusion 12A for holding in the contact accommodating portion 3 is formed to protrude.
The contact portion 11 includes two contact clamping pieces 20 that extend downward and are arranged in the left-right direction so as to face each other. The two contact clamping pieces 20 have their upper end portions extending in the vertical direction in parallel with each other, and are inclined so as to approach each other as they go downward from the middle portion. The closest part of the two contact holding pieces 20 constitutes a contact 21 for elastically holding the contact of the mating connector. The lower side of the contact 21 of the two contact holding pieces 20 is inclined so as to be separated from each other toward the lower side, and a guide inclined portion for guiding the contact of the mating connector inserted from the lower side between the contacts 21. 22

  FIGS. 5A and 5B are six views of the pressure contact type connector 1. FIG. 5A is a front view, FIG. 5B is a plan view, FIG. 5C is a bottom view, and FIG. FIG. 5E shows a right side view, and FIG. 5F shows a rear view. FIG. 6 is a six-side view of the pressure contact type connector 1 with the cap 2B removed, where FIG. 6 (a) is a front view, FIG. 6 (b) is a plan view, and FIG. 6 (c) is a bottom view. 6 (d) is a left side view, FIG. 6 (e) is a right side view, and FIG. 6 (f) is a rear view. Further, FIG. 7 is a six-face view of the cap 2B, in which FIG. 7 (a) is a front view, FIG. 7 (b) is a plan view, FIG. 7 (c) is a bottom view, and FIG. FIG. 7E is a right side view, and FIG. 7F is a rear view.

Referring to FIGS. 1, 2, 5, 6, and 7, the upper surface of the main body 2A of the connector housing 2 is opened, and a substantially rectangular cap 2B in a plan view is fitted into the opening from above to make contact. The container 3 is closed. The two contact accommodating portions 3 arranged in the left-right direction are partitioned by a partition wall 30 extending in the front-rear direction at the center in the left-right direction in the main body 2A.
A concave strip 31 extending in the vertical direction is formed at the front end portions of the left and right side surfaces of the cap 2B, and a convex strip 32 extending downward from the upper end is formed at the front end portions of the left and right inner wall surfaces of the main body 2A. Yes. The cap 2B can be securely attached to the specified position of the main body 2A by fitting the cap 2B into the main body 2A from above so that the ridge 32 of the main body 2A slides in the concave line 31 of the cap 2B.

  Protrusions 33 are formed on the lower front sides of the left and right side surfaces of the cap 2B, and engaging pieces 34 projecting forward are formed on the upper left and right ends of the front surface of the main body 2A. In the process of fitting the cap 2B into the main body 2A, the inner surface of the corresponding engagement piece 34 is pressed outward by the projections 33 of the cap 2B, and the engagement piece 34 is elastically deformed outward. When the cap 2B is inserted into the main body 2A by a predetermined amount or more and the protrusion 33 comes below the engagement piece 34, the engagement piece 34 returns to the initial state, and each protrusion 33 of the cap 2B corresponds to the corresponding engagement piece. 34, the cap 2B is fixed to the main body 2A.

In addition, a substantially rectangular opening 35 is formed at the center of the front surface of the cap 2B, and a protrusion 36 is formed on the front surface of the partition wall 30 of the main body 2A. When the cap 2B is attached to the main body 2A, the projection 36 of the main body 2A is locked in the opening 35 of the cap 2B, so that the cap 2B is more firmly fixed to the main body 2A.
A notch 37 extending upward is formed in the center of the lower end of the rear surface of the cap 2B. When the cap 2B is fixed to the main body 2A, a protrusion (not shown) formed on the rear surface of the main body 2A enters the notch 37 of the cap 2B and comes into contact with the upper edge of the notch 37. . Accordingly, it is possible to restrict the cap 2B from entering the main body 2A any more while the cap 2B is fixed to the main body 2A.

  Two notches 38 extending downward from the upper end side are formed on the front surface of the main body 2A of the connector housing 2 so as to be arranged in the left-right direction so as to be parallel to each other. These notches 38 open the contact accommodating part 3 toward the front, and the lower end edge thereof is formed in a substantially semicircular arc shape with substantially the same curvature as the outer peripheral surface of the covered electric wire 5 (FIG. 6). (See (a)). On the lower end side of the front surface of the cap 2B, a substantially semicircular arc-shaped notch 39 having substantially the same curvature as the outer peripheral surface of the covered electric wire 5 is formed side by side in the left-right direction (see FIG. 7A).

  With such a configuration, when the cap 2B is attached to the main body 2A, the lower edges of the two notches 38 formed in the main body 2A and the two notches 39 formed in the cap 2B face each other. Two substantially circular openings 40 having an inner diameter substantially coincident with the outer diameter of the covered electric wire 5 are formed (see FIG. 5A). These openings 40 face the slot 18 of the press contact type contact 4 accommodated in the contact accommodating portion 3, and the covered electric wire 5 that is press-clamped between the pair of electric wire clamping portions 13 is front and rear with respect to the connector housing 2. An electric wire passage for insertion in the direction is configured.

  On the front surface of the main body 2 </ b> A of the connector housing 2, an electric wire holding portion 41 protruding forward is formed immediately below the notch 38. On the upper surface of the electric wire holding portion 41, a substantially semicircular arc shape having substantially the same curvature as the outer peripheral surface of the covered electric wire 5 is provided so that the lower end edges of the two notches 38 formed on the front surface of the main body 2A extend forward. A recess 42 is formed (see FIGS. 1, 2 and 6B). The two covered electric wires 5 extending forward through the opening 40 in a state of being pressed and clamped by the two press contact type contacts 4 accommodated in the contact accommodating portion 3, each lower portion is a corresponding recess of the electric wire holding portion 41. It will be accommodated in 42 and held.

  Two pairs of elastic claws 43 are formed on the front surface of the cap 2B so as to be opposed to each other in the left-right direction and project forward. These two pairs of elastic claws 43 are for holding the covered electric wires 5 in a vertically extending posture when the two covered electric wires 5 extending forward from the two openings 40 are bent upward. . The pair of elastic claws 43 are opposed to each other with an interval approximately equal to the outer diameter of the covered electric wire 5, and a protrusion 44 protruding toward the opposing elastic claw 43 is formed on the tip side of the pair of elastic claws 43. Has been. By pushing the covered electric wire 5 between the pair of elastic claws 43 from the front so as to extend in the vertical direction, the tip ends of the pair of elastic claws 43 are elastically expanded and deformed, and the covered electric wire is interposed between the pair of elastic claws 43. 5 is pinched. When the covered electric wire 5 is pushed further backward than the protrusions 44, the pair of elastic claws 43 returns to the initial state, and the protrusions 44 of the elastic claws 43 restrict the covered electric wires 5 from falling forward.

  On both the left and right sides of the lower end of the front surface of the main body 2A, guide protrusions 45 are formed as guides when the press contact type connector 1 is fitted into the mating connector. Further, four guide protrusions 46 as guides when the press contact type connector 1 is fitted into the mating connector are formed on the lower end portion of the rear surface of the main body 2A at equal intervals on the left and right. An elastic claw 47 extending downward along the front surface of the main body 2A is formed at the center in the left-right direction at the lower front surface of the main body 2A. A protrusion 48 is formed on the front surface of the lower end portion of the elastic claw 47. When the pressure contact type connector 1 is inserted into the mating connector, the lower end of the elastic claw 47 is elastically deformed rearward, and when the pressure contact type connector 1 is inserted into the mating connector by a predetermined amount or more, the elastic claw 47 Returns to the initial state. As a result, the protrusion 48 of the elastic claw 47 is caught by the inner wall surface of the mating connector, and the press contact type connector 1 is fixed to the mating connector.

On the lower surface of the main body 2A, two contact insertion ports 49 for inserting contacts of the mating connector are formed side by side. These two contact insertion ports 49 respectively face the two contact holding pieces 20 (between the guide inclined portions 22) of the press contact type contact 4 accommodated in the contact accommodating portion 3 from below.
FIG. 8 is a cross-sectional view along the arrow AA in FIG.

  2 and 8, on the left and right inner wall surfaces of the connector housing 2 and the left and right side surfaces of the partition wall 30, upper end portions (two sheets) of the pressure contact portions 10 of the pressure contact type contacts 4 accommodated in the contact accommodating portions 3 are provided. A pressure contact portion receiving recess 50 is formed to receive the outer side portion of the wire introduction portion 14 facing the front and rear direction of the pressure contact piece 12 and the connecting portion 16) connecting these wire introduction portions so as to sandwich the front and rear. . More specifically, the press-contact accommodating recess 50 is approximately the same as the length in the front-rear direction of the press-contact portion 10 of the press-contact 4 (the distance between the front surface of the front press-contact piece 12 and the rear surface of the rear press-contact piece 12). And the left and right inner wall surfaces of the connector housing 2 and the left and right side surfaces of the partition wall 30 are formed so as to extend downward from the upper end.

  A contact surface 51 extending in the vertical direction is formed at the upper part of the outer side of each wire introduction portion 14 of the pressure contact type contact 4, and in the state where the pressure contact type contact 4 is accommodated in the contact accommodating portion 3, the contact surface 51 is in contact with the inner wall surface 50 </ b> A of the pressure-contact-portion-receiving recess 50 that faces each other. Therefore, when the core wire 5A of the covered electric wire 5 is press-fitted between the pair of electric wire holding portions 13, the pair of electric wire holding portions 13 are elastically expanded and deformed, and the respective ends swing outward. The pair of electric wire introduction portions 14 connected to the pair of electric wire clamping portions 13 also swings outward, so that the inner wall surface 50 </ b> A of the press contact portion accommodating recess 50 receives a pressing force from the contact surface 51.

  As described above, according to the configuration in which the press contact portion 10 of the press contact type contact 4 is accommodated in the press contact portion accommodating recess 50 (regulation portion) such that the displacement in the front-rear direction is regulated, the pair of electric wire clamping portions 13 is accommodated. When an external force along the front-rear direction acts on the covered electric wire 5 held between the pair of electric wires, the pair of electric wire holding portions 13 can be prevented from being displaced along the front-rear direction by the covered electric wire 5. Therefore, it is prevented that the clamping force of the covered electric wire 5 by a pair of electric wire clamping part 13 falls by deform | transforming in a direction which cross | intersects with respect to the direction (left-right direction) which a pair of electric wire clamping part 13 mutually opposes. Therefore, the press-fitted covered electric wire 5 can be held better.

  An inclined surface (clearance forming surface 52) that gradually separates from the inner wall surface 50 </ b> A of the press contact portion accommodating recess 50 as it goes downward from the lower end of the contact surface 51 at the lower portion of the outer side of each wire introduction portion 14 of the press contact type contact 4. ) Is formed. Thereby, in a state where the press contact type contact 4 is stored in the contact storing portion 3, a clearance 53 is secured between the inner wall surface 50 </ b> A of the press contact portion storing recess 50 facing the lower portion of the wire introduction portion 14. The clearance 53 causes the pair of electric wire clamping portions 13 to elastically expand and deform as the covered electric wire 5 is press-fitted, and the outer ends on the lower end side of the electric wire introduction portion 14 when each tip swings outward. Is allowed to swing.

FIG. 9 is a cross-sectional view for explaining the state before and after press-fitting the covered electric wire 5 into the press contact type contact 4. In FIG. 9, only the configuration in the vicinity of the pressure contact portion 10 of the right pressure contact 4 is shown, the partition wall 30 is omitted, and the deformation mode of the right portion of the pressure contact piece 12 before and after the covered electric wire 5 is press-fitted. Only shows.
Referring to FIG. 9, when covered wire 5 is press-fitted into press contact type contact 4, right-side wire holding portion 13 is elastically expanded and deformed from the initial state shown by a solid line in FIG. 9 as shown by a broken line. The tip swings outward (to the right). Along with this, the wire introduction portion 14 connected to the wire holding portion 13 also swings outward as indicated by the broken line, so that the contact accommodating portion 3 (the press contact portion formed on the side wall 2C of the connector housing 2) The inner wall surface 50 </ b> A of the housing recess 50) receives a pressing force from the contact surface 51. Therefore, the side wall 2C of the connector housing 2 that was at the position indicated by the broken line in the initial state elastically expands outward as indicated by the solid line as the covered electric wire 5 is pressed into the pressure contact type contact 4. Open deformation.

  Although not shown in FIG. 9, when the covered wire 5 is press-fitted into the right pressure contact 4, the left-side wire holding portion 13 is also elastically expanded and deformed, and the tip is outward (left). And rocks. Along with this, the wire introduction portion 14 connected to the wire holding portion 13 also swings outward, so that the inner wall surface 50A of the contact accommodation portion 3 (the press contact portion accommodation recess 50 formed in the partition wall 30) is increased. A pressing force is received from the contact surface 51 of the electric wire introduction part 14. The deformation of the press contact type contact 4 due to the press-fitting of the covered electric wire 5 similarly occurs in the left press contact type contact 4.

  In this embodiment, each upper end side of the pair of electric wire holding portions 13 and each lower end side of the pair of electric wire introducing portions 14 are initially connected to the electric wire holding portion 13 by the pair of joint portions 15. Since they are coupled so that they can be elastically deformed (for example, bent or curved) inward from the state, the contact surfaces of the pair of wire introduction portions 14 in the state where the covered wire 5 is sandwiched between the pair of wire sandwiching portions 13 The pair of joint portions 15 are held in a bent / curved state by the reaction force 51 received from the inner wall surface 50 </ b> A of the contact accommodating portion 3, and the pair of wire introduction portions 14 are located inside the initial state with respect to the pair of wire holding portions 13. Will be bent or curved. Therefore, since the inner wall surface 50A of the contact accommodating portion 3 that abuts against the abutment surface 51 of the pair of electric wire introduction portions 14 can withstand outward pressing, the expansion deformation is suppressed, and as a result, the covering The deformation of the connector housing 2 due to the press-fitting of the electric wires 5 can be suppressed.

In particular, the pair of joint portions 15 are easily elastically deformed into a bent / curved state by the notches 15A formed on the outer sides thereof, so that the pair of electric wire introduction portions 14 is the inner wall surface 50A of the contact accommodating portion 3. It is easy to bend or curve inward by the reaction force received from the inside. Therefore, the deformation of the connector housing 2 due to the press-fitting of the covered electric wire 5 can be further effectively suppressed.
Moreover, since the clearance 53 is ensured between the clearance forming surface 52 formed on the outer side on the lower end side of the pair of electric wire introduction portions 14 and the inner wall surface 50A of the contact accommodating portion 3, it is possible to press-fit the covered electric wire 5. Accordingly, when the pair of electric wire introduction portions 14 are bent or bent inward by the reaction force received from the inner wall surface 50A of the contact accommodating portion 3, the lower end side of the electric wire introduction portion 14 (the electric wire holding portion 13 side from the contact surface 51). ) Can be prevented from pressing the inner wall surface 50 </ b> A of the contact accommodating portion 3. Therefore, the deformation of the connector housing 2 due to the press-fitting of the covered electric wire 5 can be more effectively suppressed.

  Referring to FIG. 8 again, a concave portion 54 having a shape corresponding to the upper end portion of the partition wall 30 is formed on the lower surface of the cap 2B. When the cap 2B is attached to the main body 2A, the upper end of the partition wall 30 is formed. The portion enters the recess 54 of the cap 2B. Thereby, it can prevent that the partition wall 30 deform | transforms elastically in the left-right direction by the pressing force received from the contact surface 51 of the electric wire introduction part 14 with the press-fit of the covered electric wire 5.

The press contact type connector 1 is electrically connected to the wiring board 60 by being fitted into a mating connector 100 mounted on the wiring board 60, for example. However, the mating connector 100 is not limited to the one mounted on the wiring board 60, and may be attached to another cable (covered electric wire or the like), for example.
The mating connector 100 includes a connector housing 101 in which a fitting recess 101A for fitting the pressure contact type connector 1 is formed, and two rod-shaped contacts projecting in the fitting recess 101A of the connector housing 101. And a female connector 102. The mating recess 101A of the mating connector 100 has a shape corresponding to the shape of the lower portion of the connector housing 2 (main body 2A) of the press contact type connector 1, and the connector housing 2 of the press contact type connector 1 which is a male type. By fitting into the fitting recess 101A of the mating connector 100 from above, the contact 102 of the mating connector 100 is sandwiched between the contacts 21 of the press contact type contact 4 through the contact insertion port 49, and the press contact type The connector 1 and the mating connector 100 can be connected so as to be conductive.

FIG. 10 is a front view for explaining an aspect when the covered electric wire 5 is press-fitted into the press contact type contact 1.
In the above embodiment, the configuration of the two-pole pressure contact connector to which the two covered electric wires 5 are connected as an example of the pressure contact type connector 1 has been described. However, the present invention is not limited to the two-pole pressure contact type connector, The present invention can also be applied to a pressure contact type connector to which three or more covered electric wires 5 are connected. In other words, the present invention is applicable to a multipolar pressure contact type connector to which two or more covered electric wires 5 are connected. As shown in FIG. 10, the connector housing 2 of the multipolar pressure contact type connector 1 is arranged so that the same number of contact accommodating portions 3 as the number of the covered electric wires 5 to be connected are arranged in the width direction. It can be formed by partitioning with a partition wall 30. The present invention can also be applied to a one-pole pressure contact connector to which a single covered electric wire 5 is connected.

  In FIG. 10, the aspect at the time of press-fitting the covered electric wire 5 with respect to the 7-pole press-contact type connector 1 to which seven covered electric wires are connected will be described. When press-fitting the covered electric wire 5 into the press contact type connector 1, the die 71 for holding the connector housing 2 (the main body 2A thereof) and the respective contact accommodating portions 3 of the connector housing 2 held by the die 71 are accommodated. A press working machine 70 including a press punch 72 for press-fitting the covered electric wire 5 into the press contact type contact 4 is used.

  On the upper surface of the die 71, a housing accommodating recess 73 having a width substantially matching the width of the connector housing 2 is formed. By disposing the connector housing 2 in the housing receiving recess 73 so that the contact receiving portion 3 is opened upward, the left and right outer surfaces of the connector housing 2 abut against the inner wall surface of the housing receiving recess 73, and the connector The outward displacement of the side wall of the housing 2 is restricted.

After the connector housing 2 is disposed in the housing housing recess 73 of the die 71, the covered electric wire 5 is disposed above each connector housing portion 3 so as to extend in the front-rear direction. Then, the covered electric wires 5 are pressed into the press-connecting connectors 4 in the corresponding contact accommodating portions 3 by pressing the covered electric wires 5 from the upper side to the lower side with the press-contact punch 72.
The press punch 72 is a general-purpose type capable of pressing one to twelve covered electric wires 5, and twelve pressing portions 74 projecting downward are formed on the lower surface thereof. . On the other hand, the die 71 is dedicated for each pole number of the pressure contact type connector 1 in order to hold the connector housing 2 having an outer dimension corresponding to the pole number. Therefore, when the covered electric wire 5 is press-fitted into the press contact type connector 1 having 11 poles or less by the press contact punch 72, the unused pressing portion 74 (in the case of the 7 pole press contact type connector 1 as shown in FIG. 10). , There are four pressing portions 74) on the left side, and it is necessary that the unused pressing portion 74 does not interfere with the die 71. Therefore, on the upper surface of the die 71 for a pressure contact type connector having 11 poles or less, an insertion recess 75 for inserting the unused pressing portion 74 at the time of pressing the covered electric wire 5 is formed at a position corresponding to the unused pressing portion 74. Has been.

A substantially arc-shaped depression having substantially the same curvature as that of the outer peripheral surface of the covered electric wire 5 is formed on the lower surface of each pressing portion 74, and the covered electric wire 5 is pressed downward with the covered electric wire 5 entering the depression. Thus, the covered electric wire 5 can be prevented from shifting in the width direction.
When the covered electric wire 5 is pressed toward each contact accommodating portion 3 by the pressure contact punch 72 in a state where the connector housing 2 is disposed in the housing accommodating recess 73 of the die 71, the slot 18 from the wire insertion port 17 of the pressure contact type contact 4. The covered electric wire 5 is press-fitted into the heel. Thereby, the insulation coating 5B of the covered electric wire 5 is cut by the covered cutting portion 14B, and the core wire 5A of the covered electric wire 5 is held between the pair of electric wire holding portions 13.

  At this time, by press-fitting the covered wire 5 into the press contact type contact 1, the pair of wire holding portions 13 is elastically expanded and deformed, and the pair of wire introducing portions 14 connected to the pair of wire holding portions 13 is also outward. Therefore, the inner wall surface 50 </ b> A of the contact accommodating portion 3 (side wall 2 </ b> C of the connector housing 2) receives a pressing force from the contact surface 51 of the wire introducing portion 14. In this embodiment, the left and right outer surfaces of the connector housing 2 are in contact with the inner wall surface of the housing receiving recess 73, and the outward displacement of the side wall 2C of the connector housing 2 is restricted. As the covered wire 5 is press-fitted, the outward swing of the wire introducing portion 14 is restricted by the reaction force from the inner wall surface 50A of the contact housing portion 3, and the joint portion 15 is elastically deformed into a bent / curved state. The electric wire introduction part 14 is bent or curved inward with respect to the electric wire holding part 13 from the initial state. That is, at the stage where the covered electric wire 5 is attached to the press contact type contact 4 by pressing, the pair of electric wire introduction portions 14 applies a large pressing force to the inner wall surface 50A of the contact housing portion 3, but the inner wall surface 50A of the contact housing portion 3 is applied. Since the deformation is restricted by the die 71, the side wall 2C of the connector housing 2 is not greatly deformed when the covered electric wire 5 is press-fitted. When the connector housing 2 is removed from the die 71, the inner wall surface 50A of the contact housing portion 3 only has to withstand a relatively weak spreading force received from the electric wire introducing portion 14, and therefore the side wall 2C of the connector housing 2 There is no significant deformation.

  A cap 2B is attached to the main body 2A of the connector housing 2 from which the covered electric wire 5 is press-fitted and removed from the die 71 from above. Thereby, an opening 40 as an electric wire passage is formed between the main body 2 </ b> A and the cap 2 </ b> B, and the contact housing portion 3 is closed in a state where the covered electric wire 5 is inserted into the opening 40. Accordingly, foreign matter can be prevented from entering the contact housing portion 3 from the outside, and the covered electric wire 5 sandwiched between the pair of wire sandwiching portions 13 comes off in the direction opposite to the press-fitting direction (upward), and the contact housing portion 3 Since it can prevent coming off from (electric wire passage), press-fit covered electric wire 5 can be held better.

In addition, since the deformation of the main body 2A of the connector housing 2 due to the press-fitting of the covered electric wire 5 is suppressed, the cap 2B can be satisfactorily mounted on the main body 2A and the mounting state can be reliably maintained.
The present invention is not limited to the contents of the above embodiments, and various modifications can be made within the scope of the claims.

  For example, the opening 40 for inserting the covered electric wire 5 that is press-clamped between the press-contact type contacts 4 is not limited to the configuration formed only on the front surface of the connector housing 2, and an opening is provided on the rear surface of the connector housing 2. An electric wire passage may be formed so that the covered electric wire 5 press-fitted between the press-contact contacts 4 can penetrate the connector housing 2.

The press contact type contact 4 is not limited to the configuration including the two press contact pieces 12 connected by the connecting portion 16, and a plurality of (for example, two) press contact pieces 12 provided separately without being connected to each other. May be included, or a configuration including only one pressure contact piece 12 may be used.
The restricting portion for preventing the pair of electric wire sandwiching portions 13 from being shifted and deformed in the direction intersecting with each other (lateral direction) is sandwiched between the pressure contact portion 10 and the front surface of the pressure contact piece 12 on the front side. The configuration is not limited to the configuration in which the rear surface of the pressure contact piece 12 on the rear side is restricted, and the configuration in which the pressure contact piece 12 is sandwiched and the front surface and the rear surface of the pressure contact piece 12 are regulated may be employed.

The connector housing 2 is not limited to the configuration including the main body 2A and the cap 2B, but may be configured only by the main body.
The pressure contact type contact is not limited to the female configuration that accepts the insertion of the contact 102 of the mating connector 100 as in the above embodiment. For example, the male contact in which the pressure contact type contact is inserted into the contact of the mating connector is used. It may be a configuration. Further, the pressure contact type connector is not limited to the male configuration that is fitted into the fitting recess 101A of the mating connector 100 as in the above embodiment, but includes, for example, a fitting recess for fitting the mating connector. The female-type structure provided may be sufficient.

1 is a perspective view of a pressure contact connector according to an embodiment of the present invention. It is a disassembled perspective view of a pressure-contact type connector. It is a perspective view of a pressure contact type contact. It is a 6th page figure of a press contact type contact. It is a 6th page figure of a pressure contact type connector. It is a 6th page figure of a pressure contact type connector in the state where a cap was removed. It is a 6th view of a cap. It is sectional drawing along arrow AA in FIG.5 (e). It is sectional drawing for demonstrating the state before and behind press-fitting a covered electric wire to a press-contact type contact. It is a front view for demonstrating the aspect at the time of press-fitting a covered electric wire to a press-contact type contact. It is a partial expanded sectional view of the conventional press-contact type connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pressure contact type connector 2 Connector housing 2A Main body 2B Cap 3 Contact accommodating part 4 Pressure contact type contact 5 Covered electric wire 5A Core wire 5B Insulation coating 13 Wire clamping part 14 Wire introduction part 14A Wire receiving inner side 14B Cover cutting part 14C Guide inner side 15 Joint part 15A Notch 17 Wire insertion port 40 Opening (wire passage)
50 Press-contact accommodating recess (regulator)
50A Inner wall surface 51 Contact surface 52 Clearance forming surface 53 Clearance 71 Die 72 Pressure punch

Claims (7)

A press contact type contact that is housed in the contact housing portion of the connector housing, accepts press-fitting of the covered wire, and is electrically connected to the covered wire,
A pair of electric wire holding portions for being elastically cantilevered and coupled to each base end side so that each distal end side is swingable, and for pressing and holding the core wire of the covered electric wire by the inner sides facing each other; ,
The sheath that has a wire receiving inner side that forms a wire insertion opening that accepts the covered wire at each tip side, is continuous with the inner sides of the pair of wire clamping portions, and is received by the wire insertion port. A covered cutting portion that has guide inner sides for guiding the electric wire between the pair of electric wire holding portions on each base end side, and cuts the insulating coating of the covered electric wire and exposes the core wire with the press-fitting of the covered electric wire. Between the inner side of the wire receiving portion and the inner side of the guide, and the inner wall surface of the contact accommodating portion in a state where the covered electric wire is sandwiched between the pair of wire sandwiching portions. A contact surface that contacts and receives a reaction force from the inner wall surface is provided on the outer side of each distal end side, and the pair of wire holding portions elastically expands and deforms in accordance with the press-fitting of the covered wire. When the tip swings outward, A pair of wire introducing portion having a clearance for permitting swinging towards the clearance forming surface to secure between the inner wall surface of the contact housing on the outside edge of the base end side,
Each of the distal end sides of the pair of electric wire holding portions and the proximal end sides of the pair of electric wire introduction portions are bent / curved so that the electric wire introduction portion is bent or curved inward from the initial state with respect to the electric wire holding portion. In the state in which the covered wire is sandwiched between the pair of electric wire holding portions, the contact surfaces of the pair of electric wire introduction portions are separated from the inner wall surface of the contact accommodating portion while being coupled in a state where elastic deformation to a curved state is possible. A pressure contact type contact comprising: a pair of joints held in the bent / curved state by a reaction force received.   2. The press contact type according to claim 1, wherein notches for facilitating elastic deformation of the pair of joint portions into the bent / curved state are formed on the outer sides of the pair of joint portions. contact. The press contact type contact according to claim 1 or 2,
A connector comprising: a connector housing having the contact accommodating portion, and having an electric wire passage for inserting a covered electric wire press-fitted into the press contact type contact accommodated in the contact accommodating portion. The connector housing is
A main body having the contact accommodating portion;
4. The connector according to claim 3, further comprising a cap that is detachable from the main body and is attached to the main body so as to close the contact housing portion in a state where the electric wire passage is formed.   On the inner wall surface of the contact accommodating portion, a restricting portion for restricting the pair of electric wire clamping portions of the press contact type contacts accommodated in the contact accommodating portion from being displaced along the electric wire passage is formed. The connector according to claim 3 or 4, characterized by the above. A connector according to any one of claims 3 to 5;
A connector with an electric wire, comprising: a covered electric wire inserted through the electric wire passage and having a core wire pressed and clamped between inner sides of the pair of electric wire holding portions of the press contact type contact accommodated in the connector housing. A method of manufacturing a connector with electric wires by press-contacting a covered electric wire to the connector according to claim 3,
Disposing the connector housing on a die that regulates displacement of the inner wall surface of the contact accommodating portion;
By press-fitting a covered wire between the inner sides of the pair of wire holding portions from the wire insertion port of the pressure-contact type contact accommodated in the contact accommodating portion by means of a pressure contact punch, Cutting the insulation coating, and sandwiching the core wire of the coated wire between the pair of wire sandwiching portions; and
The pair of electric wire clamping portions are elastically expanded and deformed by press-fitting the covered electric wire, and the reaction force from the inner wall surface, the displacement of which is restricted by the die, is applied to the abutting surface. And a step of elastically deforming the pair of joint portions into the bent / curved state by restricting displacement of the leading end side of the introduction portion.

Images