connector

Abstract

This connector provides a mechanism that can increase the strength of almost the entire area of ​​the detachment prevention piece. [Solution] One embodiment of the connector comprises a housing, a terminal fitting 14, and a detachment-preventing piece 19. The housing has an insertion opening 11 into which a mating terminal is inserted. The terminal fitting 14 is located inside the housing and has a contact connection portion that contacts and electrically connects with the mating terminal inserted into the insertion opening 11. The detachment-preventing piece 19 extends from the back side to the front side in the insertion direction into which the mating terminal is inserted, within the housing. The detachment-preventing piece 19 prevents the terminal fitting 14 from coming out under normal conditions. The detachment-preventing piece 19 is provided with a reinforcing rib 40 that extends continuously from a base located on the back side in the insertion direction to a tip located on the front side in the insertion direction.

Description

【Technical Field】 【0001】 Embodiments of the present invention relate to a connector including a terminal fitting electrically connected to a mating terminal. 【Background Art】 【0002】 As a connector used for connecting electrical devices, there is known one in which a terminal fitting is housed inside a resin housing (see, for example, Patent Document 1). 【0003】 The connector described in Patent Document 1 includes a housing having an insertion port into which a mating terminal (male terminal) is inserted, and a terminal fitting disposed inside the housing. The terminal fitting has a base end side connected to an electric wire, and a contact connection portion that contacts and is electrically connected to the mating terminal is provided on the tip end side. The terminal fitting is mounted in the housing so that the contact connection portion faces the insertion port of the housing. 【0004】 In addition, inside the housing, there is provided a long plate-shaped retaining piece (lance) that restricts the removal of the terminal fitting when the electric wire is pulled. The retaining piece is formed of resin integrally with the housing. The retaining piece extends from the back side to the front side in the insertion direction into which the mating terminal is inserted, and a restricting protrusion is provided at the tip end portion in the extending direction. The restricting protrusion is disposed so as to face the locking portion of the terminal fitting in a state where the terminal fitting is mounted. The restricting protrusion abuts against the locking portion of the terminal fitting when the terminal fitting attempts to be displaced in the removal direction, and restricts the displacement of the terminal fitting in the removal direction by this abutment. Further, a reinforcing rib is integrally formed at the base of the retaining piece in order to suppress deformation such as buckling when a large load in the removal direction acts on the terminal fitting. The reinforcing rib is formed to bulge at the center in the plate width direction of the base of the retaining piece, and enhances the strength of the base of the retaining piece. 【Prior Art Documents】 【Patent Documents】 【0005】 【Patent Document 1】 Japanese Patent Publication No. 2015-79643 [Overview of the project] [Problems that the invention aims to solve] 【0006】 The connector described in Patent Document 1 suppresses excessive deformation of the retaining piece when a large load in the direction of disengagement is applied from the terminal fitting by providing a reinforcing rib at the base of the retaining piece. However, the point of application of the load acting on the retaining piece from the terminal fitting is not limited to the base, and depending on the load input from the terminal fitting, there is concern that a large load may also be applied to parts other than the base. 【0007】 One embodiment of the present invention provides a connector that can increase the strength of almost the entire area of ​​the detachment prevention piece. [Means for solving the problem] 【0008】 A connector according to one embodiment of the present invention comprises a housing having an insertion opening into which a mating terminal is inserted; a terminal fitting disposed inside the housing and having a contact connection portion that contacts and electrically connects with the mating terminal inserted into the insertion opening; and a release-restricting piece extending from the back side in the insertion direction into which the mating terminal is inserted towards the front side in the insertion direction within the housing, and normally restricting the release of the terminal fitting, wherein the release-restricting piece is provided with a reinforcing rib that extends continuously from a base located on the back side in the insertion direction towards a tip located on the front side in the insertion direction. [Effects of the Invention] 【0009】 According to the connector of one embodiment of the present invention, the strength of the detachment prevention piece can be increased over almost its entire surface. [Brief explanation of the drawing] 【0010】 [Figure 1] This is an exploded perspective view of the connector of the embodiment. [Figure 2]This is an enlarged view of part II of Figure 1. [Figure 3] This is a perspective view of the second housing block of the connector according to the embodiment. [Figure 4] This is a partial cross-sectional perspective view of the second housing block, taken along the line IV-IV in Figure 3. [Figure 5] This is a perspective view of the terminal fitting of the embodiment. [Figure 6] This is a longitudinal cross-sectional view of the terminal fitting of the embodiment. [Figure 7] Figure 3 shows a cross-sectional view of the second housing block and terminal fittings along the IV-IV line. [Figure 8] This is a partial cross-sectional perspective view, enlarged from a portion of Figure 4, with other components indicated by dashed lines. [Modes for carrying out the invention] 【0011】 The connector 10 of this embodiment will be described below with reference to the drawings. In this disclosure, terms are defined as follows: “Connection” may include, but is not limited to, a mechanical connection; and “Connection” may include, but is not limited to, a case where two elements to be connected are directly connected; and may include a case where two elements to be connected are connected with another element in between. 【0012】 <Connector> Figure 1 is an exploded perspective view of the connector 10 of this embodiment. Figure 2 is an enlarged view of part II of Figure 1. The connector 10 comprises a first housing block 12 having multiple insertion slots 11 formed on one surface, a second housing block 13 assembled to the first housing block 12, and multiple terminal fittings 14 attached to the second housing block 13. The first housing block 12 is formed as a rectangular parallelepiped from a resin material, and multiple insertion slots 11 are formed on one side that stands vertically upward. Male mating terminals (not shown) can be inserted into the insertion slots 11. As shown in Figure 2, the insertion slots 11 have a rectangular shape when viewed from the front at the smallest opening. The insertion slots 11 have guide slopes 11a whose opening area gradually increases toward the front in the insertion direction. The guide slopes 11a guide the tip of the mating terminal to a specified position when inserting the mating terminal into the insertion slot 11. In addition, a restriction release hole 50, which will be described in detail later, is formed at the lower right position of each insertion slot 11. In this embodiment, the first housing block 12 and the second housing block 13 constitute the housing of the connector 10. 【0013】 In the following, for the sake of explanation, the direction in which the male mating terminal is inserted (the direction in which the insertion opening 11 opens) will be referred to as the "front-to-back direction," and the direction perpendicular to the front-to-back direction and the vertical direction will be referred to as the "left-to-right direction." Furthermore, with respect to the connector 10, the side with the insertion opening 11 in the front-to-back direction will be referred to as the "front," and the side opposite to the "front" will be referred to as the "rear." Multiple insertion openings 11 are formed in the front wall 12f of the first housing block 12. In addition, with respect to the connector 10, the side located to the left when facing forward will be referred to as the "left," and the side located to the right when facing forward will be referred to as the "right." 【0014】 A rectangular opening 15 is formed on one side (left side) of the first housing block 12 in the left-right direction. The main part of the second housing block 13 (such as the crossbeam 18 described later) is housed inside the first housing block 12 through this opening 15. The second housing block 13 is fixed to the first housing block 12 when its main part is housed inside the first housing block 12. 【0015】 <Second housing block> FIG. 3 is a perspective view of the second housing block 13 as seen from a direction different from that in FIG. 1. FIG. 4 is a partial cross-sectional perspective view of the second housing block 13 taken along the line IV-IV in FIG. 3. The second housing block 13 includes a rectangular plate-shaped cover wall 16 that closes the opening 15 (see FIG. 1) of the first housing block 12, a vertical wall 17 disposed at a distance from the cover wall 16 in the left-right direction, and upper and lower four-stage cross beam portions 18 installed on the cover wall 16 and the vertical wall 17. The second housing block 13 is integrally formed of a resin material. 【0016】 Each cross beam portion 18 has a plate-shaped portion 18a that extends horizontally forward from the rear region. At the front end portion of the plate-shaped portion 18a, three retaining pieces 19 (lances) are provided side by side in the left-right direction. A slit 25 is provided on the side portion of each retaining piece 19. The slit 25 extends from the front end portion toward the rear. The retaining piece 19 is a plate-shaped piece whose thickness direction is in the up-down direction and extends forward from the rear region of the cross beam portion 18. 【0017】 The retaining piece 19 has a cantilever structure with the base side (rear side) supported by the plate-shaped portion 18a of the cross beam portion 18. With this structure, the tip end side of each retaining piece 19 is made deformable by bending in the up-down direction (thickness direction). A corresponding terminal fitting 14 can be locked to each retaining piece 19. In this embodiment, since three retaining pieces 19 are provided on each of the upper and lower four-stage cross beam portions 18, a total of 12 terminal fittings 14 can be attached to the second housing block 13. 【0018】 <Retaining piece> Each release-restricting piece 19 has an upper bulge 20 that extends forward while sloping upward from the front end of the plate-shaped portion 18a of the crossbeam portion 18, and a flat plate portion 21 that extends horizontally forward from the front end of the plate-shaped portion 18a. The flat plate portion 21 and the upper bulge portion 20 are formed integrally side by side. The upper bulge portion 20 is the part that engages with the terminal fitting 14 and restricts the displacement (backward displacement) of the terminal fitting 14 in the release direction, and its front end protrudes forward from the flat plate portion 21. 【0019】 The upper bulge portion 20 has an inclined surface 20a (inclined upper surface) that slopes forward and upward from the upper surface on the front end side of the plate-like portion 18a. The upper surface of the upper bulge portion 20 in front of the inclined surface 20a extends to the front end at a nearly constant height. A substantially flat restricting surface 20b facing directly forward is formed at the front end of the upper bulge portion 20. The restricting surface 20b comes into contact with the locking projection 22 (see Figures 6 and 7), which will be described later, of the terminal fitting 14 after the terminal fitting 14 is attached to the release restricting piece 19. By coming into contact with the locking projection 22, the restricting surface 20b restricts the displacement (backward displacement) of the terminal fitting 14 in the release direction. 【0020】 A long, plate-shaped reinforcing rib 40 is integrally formed on the right side of each release-restricting piece 19 (the right side of the upper bulge 20). The reinforcing rib 40 is connected to the right side of the upper bulge 20 so that its thickness direction is oriented in the left-right direction. The main part of the reinforcing rib 40, excluding its tip, stands above the upper surface of the release-restricting piece 19. 【0021】 The reinforcing rib 40 extends continuously from the base of the pull-out restricting piece 19, located on the rear side in the insertion direction of the terminal fitting 14, to the tip located on the front side in the insertion direction. Since the reinforcing rib 40 extends continuously from the base to the tip along the right end of the pull-out restricting piece 19, the buckling strength of the pull-out restricting piece 19 can be increased over almost the entire front-to-back direction. In this embodiment, the rear portion of the reinforcing rib 40 extends to the upper surface of the crossbeam portion 18 and is integrated with the upper surface of the crossbeam portion 18. As shown in Figure 3, some of the reinforcing ribs 40 extend continuously to the rear end of the crossbeam portion 18, while other portions of the reinforcing ribs 40 are connected to the terminal housing wall 23 that protrudes from the upper part of the crossbeam portion 18. Therefore, in this embodiment, the structure of the reinforcing rib 40 that extends to the rear region of the crossbeam portion 18 further increases the buckling strength of the reinforcing rib 40 in the front-rear direction. 【0022】 Furthermore, the front end of the reinforcing rib 40 has an inclined surface 41 that slopes downward toward the front from the front end of the flat upper surface of the reinforcing rib 40. The inclined surface 41 is positioned adjacent to the side of the tip region of the upper bulge 20. The front end of the inclined surface 41 is located lower than the upper surface of the front end of the upper bulge 20. In other words, the rigidity of the reinforcing rib 40 at the position adjacent to the front end of the upper bulge 20 is lower compared to other members. 【0023】 <Restriction release hole> The restriction release holes 50 formed in the first housing block 12 open toward the tip (inclined surface 41) of each reinforcing rib 40. When removing the terminal fitting 14 which is restricted from coming out by the removal restriction piece 19, the restriction release jig 51 shown in Figure 1 is inserted into the restriction release hole 50. The restriction release jig 51 presses the inclined surface 41 of the reinforcing rib 40 from the front side through the restriction release hole 50. The inclined surface 41 at the front end of the reinforcing rib 40 is the contact surface that the restriction release jig 51 comes into contact with. The inclined surface 41 converts the pressing load in the insertion direction by the restriction release jig 51 into a deflection displacement in the restriction release direction (downward) of the removal restriction piece 19. Therefore, by pressing the inclined surface 41 of the reinforcing rib 40 with the restriction release jig 51 through the restriction release hole 50, the restriction on the terminal fitting 14 by the removal restriction piece 19 can be released. 【0024】 <Terminal fittings> Figure 5 is a perspective view of the terminal fitting 14 seen from above, and Figure 6 is a longitudinal cross-sectional view of the terminal fitting 14. Figure 7 is a cross-sectional view of the second housing block 13 and the terminal fitting 14 taken along the line IV-IV in Figure 3. Figure 8 is a partial cross-sectional perspective view, an enlarged portion of Figure 4, with other components indicated by dashed lines. The terminal fitting 14 includes a cylindrical portion 30 into which the tip of a male mating terminal is inserted, a core wire crimping portion 31 into which the core wire portion of an electric wire (not shown) is connected by crimping, and a coating crimping portion 32 into which the insulation of an electric wire (not shown) is crimped. 【0025】 The cylindrical portion 30 is formed in a rectangular tube shape, and a male mating terminal is inserted through the opening at the tip. A notch 33 (through hole) is formed in the lower wall of the cylindrical portion 30 to receive the upper bulge 20 of the corresponding release-retaining piece 19. In addition, a locking projection 22 that protrudes downward is provided at the front edge of the notch 33 on the lower surface of the cylindrical portion 30. As shown in Figure 6, the locking projection 22 has a flat locking surface 22a facing rearward and an inclined guide surface 36 at the front end, whose lower surface is inclined forward and upward. 【0026】 As shown in Figure 7, the locking surface 22a of the locking projection 22 abuts against the front surface (restricting surface 20b) of the upper bulge 20 of the retaining piece 19 when the upper bulge 20 of the retaining piece 19 is received within the notch 33 of the cylindrical portion 30, or faces the front surface (restricting surface 20b) with a gap in between. The inclined guide surface 36 presses downward against the upper bulge 20 (inclined surface 20a) of the retaining piece 19 when the cylindrical portion 30 of the terminal fitting 14 is slid forward along the upper surface of the retaining piece 19 to lock the terminal fitting 14 to the retaining piece 19. This press causes the tip of the retaining piece 19 to bend and deform downward, allowing further forward displacement of the terminal fitting 14. 【0027】 Furthermore, the core wire crimping portion 31 of the terminal fitting 14 is connected to the rear of the cylindrical portion 30, and the insulation crimping portion 32 is connected to the rear of the core wire crimping portion 31. The terminal fitting 14 is crimped onto the core wire portion of the electric wire by the core wire crimping portion 31, thereby electrically connecting the electric wire to a power source or external equipment. In Figures 5 and 6, reference numeral 35 indicates a contact connection portion for the mating terminal, formed by recessing a part of the upper wall of the cylindrical portion 30 inward. However, the contact connection portion of the terminal fitting 14 is not limited to the portion indicated by reference numeral 35. When the mating terminal is inserted into the cylindrical portion 30, the entire area where the mating terminal makes contact becomes the contact connection portion of the terminal fitting 14. 【0028】 <Connector assembly> Next, we will explain how to assemble connector 10. The second housing block 13 is pre-assembled to the first housing block 12. The first housing block 12 and the second housing block 13, assembled together, are provided with multiple terminal mounting sections 28 for attaching multiple terminal fittings 14. Part of the terminal mounting section 28 forms a rectangular cylindrical peripheral wall structure that surrounds the outside of the terminal fittings 14. In addition, an opening (not shown) is formed in the rear wall of the first housing block 12 for inserting terminal fittings 14 to which electric wires are connected into the corresponding terminal mounting section 28. The terminal mounting section 28 is surrounded by the crossbeam section 18, terminal housing wall 23, detachment prevention piece 19, reinforcing rib 40, etc. on the second housing block 13 side, and the inner wall section (not shown) etc. on the first housing block 12 side. 【0029】 A terminal fitting 14 is inserted into each terminal mounting section 28 through an opening in the rear wall of the first housing block 12. When the terminal fitting 14 is pushed into the terminal mounting section 28 from the rear, the locking projection 22 on the front end of the cylindrical section 30 comes into contact with the upper bulge 20 of the release-restricting piece 19. If the terminal fitting 14 is pushed in further, the locking projection 22 of the cylindrical section 30 slides on the inclined surface 20a of the upper bulge 20, and as a result, the release-restricting piece 19 is gradually pressed downward. As the terminal fitting 14 moves forward, the tip of the release-restricting piece 19 bends and deforms downward. In this way, when the locking projection 22 of the terminal fitting 14 overcomes the upper bulge 20 of the release-restricting piece 19, the upward pressing load from the locking projection 22 is released, and the release-restricting piece 19 elastically returns to its initial shape. At this time, the upper bulge 20 of the detachment-restricting piece 19 is received within the notch 33 on the lower surface of the terminal fitting 14, and the restricting surface 20b at the front end of the upper bulge 20 faces the locking surface 22a of the locking projection 22. 【0030】 As described above, when the terminal fitting 14 is attached to the corresponding terminal mounting portion 28, the restricting surface 20b of the detachment restricting piece 19 comes into contact with or is in close proximity to the rear surface of the locking projection 22 of the terminal fitting 14. In this state, when a male mating terminal is inserted into the insertion opening 11 on the front of the first housing block 12, the tip of the mating terminal is inserted into the cylindrical portion 30 of the terminal fitting 14, and the mating terminal and the terminal fitting 14 are electrically connected. 【0031】 Furthermore, as described above, when the terminal fitting 14 is attached to the terminal mounting portion 28, if the wire connected to the terminal fitting 14 is pulled, the detachment of the terminal fitting 14 is restricted as follows. In other words, when a large load in the direction of detachment (towards the rear) is applied to the terminal fitting 14 through the electric wire, this large load acts on the front end of the detachment restricting piece 19 (the restricting surface 20b of the upper bulge 20) via the locking projection 22 of the terminal fitting 14. As a result, the displacement of the terminal fitting 14 in the direction of detachment is restricted. 【0032】 At this time, a reinforcing rib 40 is integrally provided on the right side of the detachment-preventing piece 19, extending continuously from the base to the tip of the detachment-preventing piece 19. Therefore, the rigidity and strength of the detachment-preventing piece 19 in the front-rear direction are maintained at a high level. Consequently, even when subjected to a large load through the terminal fitting 14, the detachment-preventing piece 19 does not undergo excessive deformation such as buckling. 【0033】 <Removal of terminal fittings> Furthermore, after attaching the terminal fitting 14 to the terminal mounting section 28 as described above, if the terminal fitting 14 needs to be removed from the terminal mounting section 28 for maintenance or other reasons, the terminal fitting 14 can be removed by following the procedure below. 【0034】 As shown in Figure 8, the tip of the release tool 51 is inserted into the release hole 50 of the front wall 12f of the first housing block 12, and the tip of the release tool 51 presses the inclined surface 41 of the front end of the reinforcing rib 40 toward the rear. When the inclined surface 41 is pressed by the release tool 51 in this way, a portion of the pressing load is converted into a load that causes the tip of the release restrictor piece 19 to bend downward. As a result, as shown by the arrow in Figure 7, the tip of the release restrictor piece 19 bends downward by more than a predetermined amount, and the upper bulge 20 of the release restrictor piece 19 comes out of the notch 33 of the terminal fitting 14. In this state, the terminal fitting 14 can be removed from the terminal mounting portion 28 by pulling it from the rear side of the first housing block 12. 【0035】 <Effects of the Embodiment> As described above, the connector 10 of this embodiment is provided with a reinforcing rib 40 that extends continuously from the base to the tip of the release-restricting piece 19, which restricts the release of the terminal fitting 14. With this structure, even when a large load in the release direction is applied to the terminal fitting 14, it is possible to suppress excessive deformation of the release-restricting piece 19 over almost the entire front-to-back direction. Therefore, by adopting the connector 10 of this embodiment, the durability of the disconnection-preventing piece 19 is increased, and the intended function of the connector 10 can be maintained over a long period of time. 【0036】 Furthermore, in the connector 10 of this embodiment, a restriction release hole 50 is formed in the second housing block 13 (housing) that opens toward the tip of the reinforcing rib 40. A restriction release jig 51 can be inserted into the restriction release hole 50 from the front side of the second housing block 13. In this configuration, the restriction on the terminal fitting 14 by the detachment restriction piece 19 can be released by utilizing the front end of the reinforcing rib 40, which is provided primarily to increase the rigidity and strength of the detachment restriction piece 19. Therefore, compared to the case where the release function for the terminal fitting 14 by the release retaining piece 19 is provided in a different location, the structure around the release retaining piece 19 can be simplified. Thus, by adopting this configuration, it becomes possible to make the entire connector 10 smaller. 【0037】 Furthermore, in this embodiment, the connector 10 has an inclined surface 41 at the tip of the reinforcing rib 40 that converts the pressing load of the release jig 51 in the insertion direction into a deflection displacement of the release restrictor piece 19 in the release direction. With this configuration, simply by pushing the release jig 51 forward through the release hole 50, the release restrictor piece 19 can be deflected and deformed in the release direction through the inclined surface 41. Therefore, by adopting this configuration, it becomes possible to more easily release the restriction on the release restriction piece 19. 【0038】 Furthermore, in the connector 10 of this embodiment, the reinforcing rib 40 extends further rearward than the rear end (base) of the detachment-preventing piece 19 and is connected to the transverse beam portion 18 (high-rigidity portion of the housing) of the second housing block 13. With this configuration, the connector 10 of this embodiment can more reliably prevent excessive deformation of the detachment-preventing piece 19. 【0039】 Furthermore, in the connector 10 of this embodiment, the front end of the inclined surface 41 of the reinforcing rib 40 is lower than the upper surface of the front end of the upper bulge 20 of the detachment-preventing piece 19. This configuration makes it possible to suppress an extreme increase in the rigidity of the front end of the upper bulge 20. Therefore, by adopting this configuration, the reinforcing rib 40 reliably increases the strength of the entire area of ​​the detachment-restricting piece 19, and makes it easier to release the restriction on the detachment-restricting piece 19. 【0040】 While embodiments of the present disclosure have been described above, these embodiments are provided as examples and are not intended to limit the scope of the present disclosure. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the present disclosure. 【0041】 For example, in the above embodiment, the cylindrical portion 30 to which the mating terminal is made contact is formed in the shape of a square cylinder, but the shape of the cylindrical portion 30 may be other than a square cylinder. The shape of the cylindrical portion 30 may be cylindrical, elliptical, or other shapes. 【0042】 Furthermore, in the above embodiment, the insertion ports 11 of the connector 10 are arranged in four rows vertically and three columns horizontally, but the arrangement and number of insertion ports 11 are not limited to those described in the above embodiment. The insertion ports 11 may be arranged in a single row horizontally, or in a single row vertically, etc. There may be only one insertion port 11. 【0043】 <Other Embodiments> In the above embodiment, the housing is composed of a first housing block 12 and a second housing block 13, but the configuration of the housing is not limited thereto. The housing may be composed of three or more blocks, or it may be composed of a single block. 【0044】 Furthermore, in the above embodiment, a reinforcing rib 40 is provided on one side of the detachment-preventing piece 19 in the left-right direction. However, the reinforcing rib 40 may be provided on both sides of the detachment-preventing piece 19 in the left-right direction. In this case, the overall strength of the detachment-preventing piece 19 can be further increased. Also, the reinforcing rib 40 may protrude downwards, or it may protrude on both sides in the vertical direction. [Explanation of symbols] 【0045】 10… Connectors 11…Insertion opening 12…First Housing Block (Housing) 13…Second Housing Block (Housing) 14…Terminal fittings 19... Removal of restrictions 35... Contact connection part 40…Reinforcement ribs 41…Slope surface 50…Restriction release hole 51... Restriction release jig

Claims

[Claim 1] A housing having an insertion port into which the mating terminal is inserted, A terminal fitting having a contact connection portion that is arranged inside the housing and electrically connected to the mating terminal inserted into the insertion opening, The housing includes a retaining piece that extends from the back side in the insertion direction into which the mating terminal is inserted toward the front side in the insertion direction, and normally prevents the terminal fitting from coming out. The aforementioned slip-retaining piece is provided with reinforcing ribs that extend continuously from a base located on the inner side in the insertion direction toward a tip located on the outer side in the insertion direction. connector. [Claim 2] The housing is formed with a restriction release hole that opens toward the tip of the reinforcing rib, and a restriction release jig can be inserted into the restriction release hole. The connector according to claim 1. [Claim 3] The tip of the reinforcing rib is provided with a contact surface against which the restriction release jig makes contact. The contact surface is composed of an inclined surface that converts the pressing load in the insertion direction of the restriction release jig into a deflection displacement of the release restricting piece. The connector according to claim 2.

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