JP6279428B2 - connector - Google Patents

Description

  The present invention relates to a connector configured by assembling a terminal piece to a housing.

  2. Description of the Related Art Conventionally, there is a connector used in an electrical connection part, in which a conductive metal plate is punched and bent at an appropriate place to form a terminal piece, and the terminal piece is assembled to a synthetic resin housing. . In the connector having such a structure, it is necessary to prevent the terminal piece from being detached from the housing in a state where the terminal piece is assembled to the housing. For example, the terminal piece is inserted into a terminal insertion hole formed in the housing, and the terminal piece There is one in which a retainer is inserted in a direction crossing the insertion direction, and the terminal piece is prevented from coming off by engagement between the retainer and a recess of the terminal piece (see, for example, Patent Document 1).

JP 2010-49844 A

  In the technique of the above-mentioned Patent Document 1, a retainer is used separately from the housing and the terminal piece, and there are problems that the number of parts increases and the assembly becomes complicated. In addition, in order to insert the retainer into a predetermined portion of the terminal piece, a lance having a cut and raised shape is provided on the terminal piece in order to temporarily fix the terminal piece at a predetermined position in the insertion direction with respect to the terminal insertion hole. Is provided with a locking groove that can be elastically fitted to prevent the terminal piece from coming off. This locking groove is formed in the housing. When the lance is engaged with the locking groove, the lance elastically protrudes from the terminal insertion hole toward the locking groove, so that even if the retainer is removed, Therefore, it is difficult to release the engagement between the lance and the locking groove, and there is an inconvenience that only the terminal piece cannot be replaced.

  In view of the above background, it is an object of the present invention to prevent a terminal piece from being detached without increasing the number of parts and to facilitate assembly in a connector for assembling a terminal piece to a housing.

  In order to solve the above problems, the present invention provides a connector (33) having a terminal piece (4) formed by bending a metal plate-like body and a housing (31) for holding the terminal piece. The terminal piece is bent in a direction to be inverted from one end in the longitudinal direction of the long plate-like base (13) and the base, and extends toward the other end of the base, thereby extending the base to the base. A contact portion (4a) configured to elastically contact a mating terminal while facing away from each other, and the base portion includes a first fitting hole (37) and the first portion A second fitting hole (38) provided at a predetermined interval in the longitudinal direction of the base portion with respect to the fitting hole, and the housing is a bottom surface for supporting the base portion in a mounted state. (32a) and a state where the base is placed at a predetermined position on the bottom surface and the base is placed on the bottom surface It is possible to fit into both of the fitting holes, and in the fitted state, a fitting projection (36) for restricting sliding of the base portion in the longitudinal direction, and receiving the base portion and mounting on the bottom surface. A side wall (32b) configured to be able to be placed, and the side wall has a predetermined edge (13a, 13b) of the base in a state where the fitting protrusion is fitted into the first fitting hole. In the state where the fitting protrusion does not engage with 13c) and the fitting protrusion is fitted into the second fitting hole, it has an overhang portion (34a, 34b) that engages with the predetermined edge portion, and the base portion is In order to enable the insertion protrusion to move in the sliding direction from the state of being inserted into the first fitting hole to the state of being inserted into the second fitting hole, the insertion protrusion is opposite to the sliding direction. Opposite to the sliding direction of the first fitting hole or the first fitting hole Slope toward the bottom surface (36a · 37a) or a curved surface (36b) is characterized in that provided in the.

  According to this configuration, by placing the base portion of the terminal piece on the bottom surface in the housing, the fitting protrusion on the bottom surface is fitted into the first fitting hole of the base portion, and in this state, the predetermined portion of the base portion is set. By sliding the base from that state without engaging the overhanging portion of the housing, the fitting protrusion is fitted into the second fitting hole, and in this assembled state, It is possible to prevent the base portion from separating from the bottom surface by engaging the edge with the overhang portion, and the base portion can slide to the opposite side when the insertion protrusion is inserted into the second fitting hole. Therefore, the terminal piece is held in the housing so as not to be detached. In the slide of the base portion, since the chamfered portion is provided on the side opposite to the sliding direction of the fitting protrusion or the first fitting hole, the base portion can be easily moved in the sliding direction. In this way, since the base part of the terminal piece is placed on the bottom surface of the housing and then slid, it is possible to constitute a connector in which the terminal piece is assembled to the housing. It is not necessary to use the terminal piece and the terminal piece can be assembled to the housing in a positioning and retaining state without increasing the number of parts.

  In the above invention, the predetermined edge portion is provided at a position that is spaced apart in the longitudinal direction from the first engagement edge portion (13a) and the first engagement edge portion. The first engagement edge (34a) engaging with the first engagement edge, and the second engagement edge. It is good to be comprised by the 2nd overhang part (34b * 34c) engaged with a part.

  According to this configuration, in addition to the engagement between the first engagement edge portion and the first overhang portion in the state where the insertion protrusion is fitted into the second fitting hole, the second engagement edge is further provided. Since the engagement portion is engaged with the second overhang portion, in the assembled state in which the fitting protrusion is fitted into the second fitting hole, the overhang portion is engaged with the edge portion of the base portion at a plurality of locations. The base can be stably held.

  In the above invention, the first and second engaging edge portions (13a, 13b, 13d) are arranged on different sides with respect to the second fitting hole (38) in the longitudinal direction. It is good to be.

  According to this configuration, in a state where the fitting protrusion is fitted into the second fitting hole, each of the fitting portions corresponding to both sides where the first and second engaging edge portions are different from each other. Since it engages with the overhang portion, it is possible to prevent the portion of the base portion provided with the second fitting hole from being lifted, and to stably hold the fitting state of the fitting protrusion into the second fitting hole. it can.

  Further, in the above invention, the predetermined edge portion includes a pair of engagement edge portions (13a and 13b) widened to the left and right of the base portion, and the overhang portions (34a and 34b) are formed on the left and right side walls. A pair may be provided. According to this configuration, the engagement edge portion and the overhang portion can be engaged with each other on the left and right sides of the base portion, and the rocking displacement of the base portion in the left-right direction can be prevented, and the fitting protrusion into the second fitting hole can be prevented. The inserted state can be stably maintained.

  In the above invention, the predetermined edge portion includes a pair of engagement edge portions (13d) extending in the longitudinal direction from the vicinity of the one end in the longitudinal direction of the base portion, and the overhang portion (34c) is formed. It is good to provide in the one end side of the longitudinal direction of the base in the side wall. According to this configuration, when the base is slid from the state in which the fitting protrusion is fitted into the first fitting hole to the state in which the fitting is fitted into the second fitting hole, Part of the base part rises and the part of the base part rises, and there is a possibility that the predetermined edge part will not easily enter the engagement part by the overhang part, but it is predetermined in the direction away from the part of the base part to get over. Since the influence of the above-described lifting is suppressed, the predetermined edge can be easily put in the engagement portion by the overhang portion.

  In the above invention, the housing may be provided with a stopper (32c) that defines a limit in the sliding direction of the base at a position where the fitting protrusion is fitted into the second fitting hole. . According to this configuration, when the base is slid from the state in which the fitting protrusion is inserted into the first fitting hole, the one end side in the longitudinal direction of the base is inserted in the state in which the fitting protrusion is inserted into the second fitting hole. Therefore, the base portion to be assembled to the housing can be positioned reliably and easily.

  Thus, according to the present invention, it is possible to provide a connector in which the terminal piece is assembled to the housing by a simple operation of sliding the base of the terminal piece placed on the bottom surface in the housing. Assembling work to the housing is easy, it is not necessary to use separate parts such as a retainer, and the terminal piece can be positioned and assembled with respect to the housing without increasing the number of parts.

The principal part top view which shows the expansion | deployment state after the punching process before becoming a chain terminal based on this invention 1 is a perspective view of a main part showing a chain terminal bent from the expanded state of FIG. (A) The figure which looked at the terminal piece from the contact part side, (b) is the figure of the cable connection state seen from the arrow direction of the IIIb line of (a), (c) is the arrow direction of the IIIc line of (b). Viewed from The perspective view which shows the chain-like terminal of the state wound by the reel The perspective view which shows the point which attaches a terminal piece to a housing Side sectional view showing the state where the terminal piece is temporarily fixed to the housing The perspective view which shows the temporary fix | stop state to the housing of a terminal piece (A) is a principal part expanded sectional view which shows a fitting hole, (b) is a principal part enlarged sectional view which shows the example which provided the curved surface in the insertion protrusion. (A) is a sectional side view showing a positioning state of the terminal piece to the housing, (b) is a sectional view taken along the line IXb-IXb of (a) and viewed in the direction of the arrow, and (c) is (a) ) Is a sectional view taken along the line IXc-IXc of FIG. The perspective view which shows the positioning state to the housing of a terminal piece The perspective view which shows the assembly procedure to the connector housing of a connector Side view of the main part showing how to contact the mating connector The principal part fracture | rupture perspective view corresponding to FIG. 5 which shows 2nd Embodiment. (A) is principal part sectional side view which shows the 2nd overhang part in 2nd Embodiment, (b) is sectional side view which shows the engagement state of a 2nd engagement edge part and a 2nd overhang part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a main part plan view showing a developed state after punching before becoming a chained terminal 1 according to the present invention, and FIG. 2 shows a chained terminal 1 bent from the developed state of FIG. It is a principal part perspective view shown.

  As shown in FIG. 1, for example, a band-shaped carrier portion formed in a band shape in a winding direction wound in a coil shape on a hub of a reel described later by being punched from a thin sheet metal plate of phosphor bronze. 2 and a plurality of developed shapes 3 arranged at a predetermined pitch in the longitudinal direction of the carrier portion 2 are formed in a single plate shape. A terminal piece 4 shown in FIG. 2 is formed by bending a predetermined portion of the developed shape body 3 (portion shown by a two-dot chain line in FIG. 1).

  The developed shape body 3 is formed so as to extend in the lateral direction (direction perpendicular to the longitudinal direction of the carrier portion 2) from one of both side edges extending in the longitudinal direction of the carrier portion 2. Note that the developed shape body 3 is coupled to the carrier portion 2 via a connection portion 11 extending in the lateral direction within the same plane from the carrier portion 2 via a narrow width portion. The connecting portion 11 is provided with crimped pieces 12a and 12b formed in an unfolded state before being cut and raised. On the side opposite to the carrier part 2 of the connection part 11, the carrier part 2 is offset in the longitudinal direction and further extends in the lateral direction from the connection part 11, and extends in the lateral direction with respect to the connection part 11 (lateral direction). ) Along the axis L (circumferential direction of the axis L) and the contact portion expanding portion 14 are integrally formed in this order.

  The developed shape body 3 formed in this way is bent in a predetermined direction at a portion indicated by a two-dot chain line in FIG. 1, thereby forming a terminal piece 4 shown in FIG. 2. In addition, each two-dot chain line shows the approximate position of folding, and it is not always necessary to bend the two-dot chain line. For example, a case where a portion including a two-dot chain line or an adjacent two-dot chain line is bent in an arc shape is included. In the description of the present embodiment, the case of bending in an arc shape is used as a bend, but it is not particularly limited to an arc shape.

  The connection portion 11 includes a portion formed in a rectangular long plate shape that is the same surface as the carrier portion 2, a pair of the above caulking pieces 12 a extending to both sides on the long plate-like carrier portion 2 side, and a base portion 13. And a pair of the above caulking pieces 12b protruding on both sides on the side. The caulking piece 12a on the carrier portion 2 side grips the cover of the cable 22 described later by caulking, and the caulking piece 12b on the base portion 13 side grips the core wire of the cable 22 by caulking.

  As described above, the base portion 13 is formed so as to be offset in the longitudinal direction of the carrier portion 2 from the connecting portion 11 and to extend in a strip shape in a lateral direction orthogonal to the longitudinal direction of the carrier portion 2. ing. The base portion 13 includes a pair of first engagement edge portions 13a widened in the left-right direction orthogonal to the longitudinal direction that is the extending direction of the base portion 13, and the base portion 13 with respect to the first engagement edge portion 13a. A pair of second engagement edge portions 13b that are widened to the left and right at a predetermined interval are formed on the side opposite to the carrier portion 2 side in the longitudinal direction. Each of the engagement edge portions 13a and 13b corresponds to a predetermined edge portion.

  In the illustrated example, the widths of the portions where the first and second engaging edge portions 13a and 13b are provided are the same constant width, but may be different widths. Further, the body portion 13c between the first engagement edge portion 13a and the second engagement edge portion 13b in the base portion 13 is formed to have a constant width that is narrower than the width of the engagement edge portions 13a and 13b. Yes.

  The contact portion expanding portion 14 extends in the extending direction of the base portion 13 from one end in the longitudinal direction of the base portion 13. The contact portion expanding portion 14 is narrowed from the base portion 13 side to a reversing portion 14a narrowed on both sides than the width of the first engagement edge portion 13a, and to both sides of the reversing portion 14a in a gentle arc shape. A reverse warped portion 14b, a contact portion 14c having substantially the same width as the reversing portion 14a, a folded portion 14d whose width is narrowed in the extending direction, and a tapered extending end portion 14e. These are formed successively in this order.

  The developed shape body 3 formed in this manner is appropriately bent along the axis L and the two-dot chain lines described above to form the terminal strip 4 composed of the base portion 13 and the contact portion 4a as shown in FIG.

  Here, the formation point of the contact part 4a formed by bending the contact part expansion | deployment part 14 is demonstrated. A reversing portion 14a is bent in a semicircular shape from the boundary portion with the second engagement edge portion 13b, which is one end in the longitudinal direction of the base portion 13, in a direction to be reversed to the connection portion 11 side. The reverse warped portion 14b is extended toward the connecting portion 11 in a state of facing the portion in the base 13 where the first engagement edge 13a is provided, and then bent in a direction away from the base 13. , Extending obliquely rearward (second engagement edge 13b side). The contact portion 14c that continues to the reverse warp portion 14b is located farthest away from the base portion 13, and is substantially semicircular so as to make a U-turn toward the base portion 13 side in the extending direction of the reverse warp portion 14b. It is composed. The folded portion 14d continuous with the contact portion 14c extends in a direction approaching the base portion 13 from the contact portion 14c, but is partially parallel to the contact portion 14c side portion of the reverse warped portion 14b, and then obliquely rearward ( The base portion 13 is extended to a portion provided with the first engagement edge portion 13a. The extended end portion 14e continuing to the folded portion 14d is bent in a direction that is reversed at a position close to the base portion 13. Thus, the contact part 4a in the terminal piece 4 is formed.

  The base portion 13 is bent around the axis L that is the circumferential direction of the axis L described above with respect to the connecting portion 11. In the present embodiment, the base portion 13 is bent at a right angle with respect to the connection portion 11, that is, the main surface (front and back surfaces) of the carrier portion 2 so that the main surfaces of the connection portion 11 and the base portion 13 are orthogonal to each other. Note that the connecting portion 11 and the base portion 13 do not need to be bent at a right angle along the axis L, and may be gently bent so as to have, for example, an arcuate curved surface.

  The terminal piece 4 formed by bending the developed shape body 3 in this way is formed as shown in FIG. 3 (a) is a view of the terminal piece 4 as viewed from the contact portion 4a side, and FIG. 3 (b) is a view of the cable connection state as seen from the direction of the arrow of the IIIb line in FIG. 3 (a). FIG.3 (c) is the figure seen from the arrow direction of the IIIc line | wire of FIG.3 (b).

  A plurality of terminal pieces 4 are arranged at a predetermined pitch in the longitudinal direction of the carrier part 2, and are connected to the carrier part 2 via connection parts 11 to form a chain terminal 1. As shown in FIG. 4, the chain terminal 1 is provided to the user by being wound around the hub 21 a of the reel 21 in a coil shape. Thus, in the state wound on the reel 21, pressure is applied to the terminal pieces 4 in the stacking direction (the direction indicated by the arrow F in FIG. 3A). This stacking direction is the direction of the axis (axis Cc in FIG. 3A) orthogonal to the main surface of the carrier portion 2.

  In the conventional example, a strip-shaped plate punched out from a thin metal plate such as phosphor bronze is bent to the front and back sides to form a contact portion, and the chained terminal thus formed is reeled. In the case where the contact portion is wound, a portion that becomes the stacking direction is generated in the deformation direction due to the bending of the contact portion, and thus the contact portion may be newly deformed by the pressure in the stacking direction (F). When the contact portion is deformed, there is a possibility that an appropriate contact pressure as designed cannot be obtained in contact with the mating terminal.

  On the other hand, when the base portion 13 and the contact portion 4a according to the present invention are formed as the terminal pieces 4 of the chain terminal 1, they are formed as walls that stand in the stacking direction (the radial direction of the reel 21). The pressure (arrow F in FIG. 3A) applied in the stacking direction in a state where the chain terminal 1 is wound around the hub 21a of the reel 21 is applied in the direction in which the base terminal 13 and the contact portion 4a stand up. . Since the wall has a large proof strength against the pressure applied in the standing direction, the base 13 and the contact portion 4a are not easily deformed against the pressure applied in the stacking direction.

  As shown in FIG. 3A, the maximum width of the base portion 13 (the width at each of the engagement edge portions 13a and 13b) is the maximum width of the contact portion 4a (see FIG. 3) with respect to the stacking direction (axis Cc direction). In the example shown, the width of the contact portion 14 c is larger), and the entire contact portion 4 a is within the maximum width of the base portion 13. Thereby, the base 13 has a function as a prevention piece for preventing the deformation of the contact portion 4a, and it is not particularly necessary to form a dedicated terminal deformation prevention piece as in the conventional example.

  3B, the caulking piece 12a is caulked to the covering portion of the cable 22, and the other caulking piece 12b is caulked to the core wire of the cable 22, whereby the cable 22 is attached to the terminal piece 4. As shown in FIG. Combined. As an example of the usage state of the terminal piece 4, as shown in FIG. 3B, the contact portion 14 c of the contact portion 4 a comes into contact with the contacted portion 23 a of the mating terminal 23. In order to increase the contact pressure between the contact portion 14c and the contacted portion 23a, the amount of deformation in the contact direction of the contact portion 4a (the direction of arrow A in the figure) may be increased.

  When the material and thickness of the terminal piece 4 are not changed, it is conceivable to increase the distance from the base portion 13 to the contact portion 14c in order to increase the amount of deformation in the contact direction of the contact portion 4a. In the case where the contact direction of the contact portion is the stacking direction with respect to the reel 21 as in the conventional chain terminal, when the amount of deformation in the contact direction of the contact portion is increased, the layer spacing is increased and the same. The winding amount with respect to the reel of the diameter is reduced.

  On the other hand, in the case of the chain terminal 1 according to the present invention, the contact direction of the contact portion 4a is not the stacking direction but the winding direction (circumferential direction of the reels 21), so that the stacking interval does not increase. . In addition, although the pitch space | interval of each terminal piece 4 which is a winding direction expands, it is constant with the width | variety of the base 13 with respect to radial direction, and the width | variety of the base 13 is a contact part like this embodiment. 4a is small with respect to the protruding amount (the length from the base portion 13 to the contact portion 14c), so that the number of windings (number of laps) around the reel 21 can be increased, thereby suppressing a decrease in the winding amount with respect to the reel having the same diameter. Can do.

  In addition, the contact portion 14 c comes close to the base portion 13 by contacting the mating terminal 23 and deforming the contact portion 4 a during use. As a result, the extended end portion 14e contacts the base portion 13, and then is displaced in a direction approaching the caulking piece 12b as indicated by an arrow B in FIGS. 3 (b) and 3 (c).

  On the other hand, when the caulking piece 12b that is closer to the extended end portion 14e is caulked with respect to the core wire of the cable 22, as shown in FIG. Quantity) is low. The height direction of the caulking piece 12b from the connecting portion 11 is a direction that interferes with the displacement direction of the arrow B of the extending end portion 14e. However, since the height of the caulking piece 12b is reduced, the extending end portion 14e Interference with the caulking piece 12b in the displacement is avoided. This is an effect due to the connection portion 11 being positioned laterally with respect to the base portion 13, and since the deformation amount of the contact portion 4 a can be increased, it is easy to set the contact pressure with the mating terminal 23. It is possible to provide a highly versatile chain terminal 1.

  FIG. 5 is a perspective view showing a procedure for assembling the terminal piece 4 to the housing 31. In addition, the cable 22 is couple | bonded with the terminal piece 4 similarly to FIG.3 (b) * (c). The housing 31 is formed in a box-shaped rectangular block shape having a recess 32 for receiving the base portion 13 of the terminal piece 4 as shown in FIG. The terminal piece 4 is assembled to the housing 31 to form a connector 33 (male connector in the illustrated example) shown in FIG. 7, which is a handling unit on the user side. Note that the outer shape of the housing 31 is not limited to the illustrated example, and may be formed in various shapes according to a mating member to which the connector 33 is attached.

  The concave portion 32 has a bottom surface 32a having a shape corresponding to the planar shape of the base portion 13 (viewed from above in FIG. 5), and a width direction (left-right direction in FIG. 5) orthogonal to the longitudinal direction (corresponding to the longitudinal direction of the base portion 13) of the bottom surface 32a. ) And the end wall 32c raised on one end side in the longitudinal direction of the base portion 13 on the bottom surface 32a (front side in FIG. 5), the base portion 13 is mounted on the bottom surface 32a. The terminal piece 4 in the placed state is formed so as to be received from three directions. Moreover, the recessed part 32 has the opening 32d opened on the opposite side to the bottom face 32a. The side opposite to the end wall 32c of the recess 32 is narrower than the side walls 32b and is biased to one side in the width direction (left side in FIG. 5) and is opposite to the end wall 32c. A small-width concave portion 32e that is open at the top is provided. The deviation of the small-width concave portion 32e corresponds to the connection portion 11 bent on one side in the width direction of the base portion 13.

  A pair of first and second overhang portions 34a and 34b formed on both side walls 32b so as to protrude opposite to each other in the recess 32 are provided in the longitudinal direction of the recess 32 (the front-rear direction in FIG. 5). They are spaced apart by a predetermined length (distance b in FIG. 5). The protrusion amounts of the first and second overhang portions 34a and 34b from the side wall 32b are opposed to each other at a distance wider than the width of the contact portion 4a, and are caused by the first and second engagement edge portions 13a and 13b of the base portion 13. It is narrower than the width. The end wall 32c side of the first and second overhang portions 34a and 34b is raised from the bottom surface 32a. However, the first and second overhang portions 34a and 34b are formed on the side of the narrow recess 32e with the bottom surface 32a. First and second engaging grooves 35a and 35b are formed to form a gap therebetween. The width (gap) of the first and second engagement grooves 35a and 35b may be a size that allows the first and second engagement edges 13a and 13b to be inserted so as not to be greatly rattled.

  In addition, a fitting protrusion 36 projects from the bottom surface 32a at a position between the first overhang portion 34a and the second overhang portion 34b. The insertion protrusion 36 is formed in a rectangular shape in a plan view as viewed from above in FIG. 5, and the other side in the longitudinal direction of the base 13 in a side view of the housing 31 as shown in FIG. On the side of the narrow recess 32e to be formed, a slope 36a that is inclined backward toward the bottom surface 32a is formed, and on the end wall 32c side, a trapezoidal cross-sectional shape is formed that has a surface rising upright from the bottom surface 32a.

  On the other hand, the base portion 13 of the terminal piece 4 is provided with a first fitting hole 37 and a second fitting hole 38 in this order at a predetermined interval in the longitudinal direction from the side opposite to the connection portion 11. Yes. Each fitting hole 37 and 38 is formed in the rectangular shape opened more largely than the fitting protrusion 36 in planar view seen from the upper direction of FIG.

  Next, the procedure for assembling the terminal piece 4 to the housing 31 will be described below. First, as shown by an arrow C in FIG. 5, the terminal piece 4 is inserted from the opening 32 d toward the bottom surface 32 a so as to enter the recess 32 of the housing 31 from the base portion 13. Note that the length of the first engagement edge portion 13a in the longitudinal direction of the base portion 13 (distance a in FIG. 5) is slightly smaller than the distance between the first and second overhang portions 34a and 34b (distance b in FIG. 5). The distance between the first and second engagement edge portions 13a and 13b (distance c in FIG. 5) is the length of the second overhang portion 34b (distance d in FIG. 5). It is set to be slightly longer than. Further, the narrow recess 32e is formed to have a size that can receive the connecting portion 11 in a state where the cable 22 is coupled.

  As a result, the first overhang portion 34a is received by the concave portion formed by the first and second engagement edge portions 13a and 13b and the body portion 13c in a top view in the direction of the arrow C, and the second engagement. The convex portion formed by the edge portion 13b is received by the concave portion between the overhang portions 34a and 34b in the side wall 32b, and the first engagement edge portion 13a is connected to the first overhang portion 34a and the small-width concave portion in the side wall 32b. 32e is received by the part between.

  Thus, since the outer shape of the base 13 and the shape of the inner wall of the recess 32 are complementary to each other, the base 13 is inserted into the recess 32 in the direction of the arrow C, so that the base 13 is 32a. With the base 13 placed on the bottom surface 32a and the first engagement edge 13a positioned between the first and second overhang portions 34a and 34b, the fitting protrusion 36 is inserted into the first fitting hole 37. The positional relationship between the first fitting hole 37 and the fitting protrusion 36 is set so as to be fitted. This prevents the fitting protrusion 36 from abutting against the lower surface of the base portion 13 and pushing up the base portion 13, preventing the second engagement edge portion 13 b from floating from the bottom surface 32 a, and the base portion 13 to the bottom surface 32 a. It will be placed.

  With the base 13 placed on the bottom surface 32 a, the terminal piece 4 is ready for assembly with respect to the housing 31. In this assembly preparation state, the first engagement edge 13a is positioned opposite to the first engagement groove 35a, and the second engagement edge 13b is positioned opposite to the second engagement groove 35b.

  Next, when the terminal piece 4 is slid to the front side indicated by the arrow D in FIG. 6 from the assembly preparation state, the first engagement edge portion 13a is engaged with the first engagement groove 35a in the second engagement. The edge portion 13b is inserted into the second engagement groove 35b. The opposite sides of the engaging grooves 35a and 35b in the sliding direction are expanded by slopes formed so as to extend obliquely upward at the upper edge portion. At the time of sliding, the portion between the fitting holes 37 and 38 in the base portion 13 temporarily gets over the fitting protrusion 36, and therefore, the engagement edge portions 13a and 13b may be slightly lifted from the bottom surface 32a due to the influence thereof. . On the other hand, since the engagement edge portions 13a and 13b are guided by the expanded portions of the engagement grooves 35a and 35b, the engagement edge portions 13a and 13b can be inserted into the engagement grooves 35a and 35b without any problem. Can be plugged in.

  Further, the fitting protrusion 36 engages with the first fitting hole 37 in the fitting state on the side opposite to the sliding direction, but as described above, the fitting protrusion 36 is opposite to the sliding direction of the terminal piece 4. On the side (the narrow recess 32e side), an inclined surface 36a that is inclined toward the bottom surface 32a is formed. Thereby, since the edge of the 1st fitting hole 37 can move on the slope 36a, the terminal piece 4 can be slid without receiving big resistance.

  In addition, although it has the effect which eliminates the feeling of resistance at the time of the slide only by providing the slope 36a in the insertion protrusion 36, in this illustrated example, as shown in FIG. A chamfered portion 37a is formed on the lower edge and on the side opposite to the sliding direction (on the side of the connecting portion 11) with the corners obliquely dropped. Thereby, the chamfered portion 37a comes to face the inclined surface 36a, and the chamfered portion 37a can easily ride on the inclined surface 36a at the time of sliding, and the terminal piece 4 can be slid more smoothly. The shape of the inclined surface 36a and the chamfered portion 37a is a flat inclined surface in the illustrated example. However, as shown in FIG. 8B, for example, a curved surface 36b such as an arc-shaped cross section is used instead of the inclined surface 36a. There may be.

  By sliding the terminal piece 4 with the base portion 13 placed on the bottom surface 32a to the front side indicated by the arrow B in FIGS. 6 and 7, after the first fitting hole 37 gets over the fitting protrusion 36, The second fitting hole 38 moves to the position of the fitting protrusion 36.

  As shown in FIGS. 9A and 10, the terminal piece 4 is positioned on the housing 31 in a state where the fitting protrusion 36 is fitted in the second fitting hole 38. In this positioning state, as shown in FIG. 9B, the first engagement edge portion 13a is sufficiently inserted into the first engagement groove 35a by the first overhang portion 34a, and FIG. c), the second engagement edge portion 13b is sufficiently inserted into the second engagement groove 35b formed by the second overhang portion 34b, so that the base portion 13, that is, the terminal piece 4 is located above the housing 31. It is prevented from coming off with respect to (opening 32d side). In the present embodiment, a pair of left and right engagement edges 13a and 13b are provided on the base 13, and a pair of corresponding overhangs 34a and 34b are also provided on the left and right, respectively. Therefore, the base 13 is prevented from swinging in the left-right direction. Thereby, the fitting state of the fitting protrusion 36 in the second fitting hole 38 is reliably held, and the positioning state of the base 13 with respect to the housing 31 is reliably held.

  Note that the end wall 32c functions as a stopper for sliding the terminal piece 4 forward. When the terminal piece 4 is slid to the end wall 32c side from the temporarily fixed state, the reversing portion 14a of the terminal piece 4 contacts the end wall 32c as shown by a two-dot chain line in FIG. Even at the position where the reversing portion 14a is in contact with the end wall 32c, the state in which the fitting protrusion 36 is fitted in the second fitting hole 38 is maintained, and the terminal piece 4 is slid excessively. The fitting protrusion 36 is prevented from being detached from the second fitting hole 38.

  Moreover, the sliding direction side (end wall 32c side) of the insertion protrusion 36 is formed in the shape of the wall surface which stands | starts up perpendicularly | vertically from the bottom face 32a, and with respect to the displacement to the back (small-width recessed part 32e side) of FIG. As a result, the inner peripheral surface of the second fitting hole 38 abuts against the wall surface of the fitting projection 36, so that the rearward displacement of the terminal piece 4 is restricted. The edge of the second fitting hole 38 may be formed by a wall surface orthogonal to the main surface of the base portion 13. In this way, the connector 33 is configured by assembling the terminal piece 4 to the housing 31 in a state where the terminal piece 4 is positioned and fixed.

  In the first embodiment, the second engagement edge 13b is provided in addition to the first engagement edge 13a to reliably prevent the base 13 from lifting from the bottom surface 32a. Only the first engagement edge 13a may be used. For example, the base 13 in the vicinity of the second fitting hole 38 is disposed by extending the first engaging edge 13 a so as to extend in the longitudinal direction at a substantially lateral position of the second fitting hole 38. Therefore, the terminal piece 4 is preferably prevented from coming off from the housing 31.

  Further, the first and second engaging edge portions 13 a and 13 b are arranged on different sides with respect to the second fitting hole 38 in the longitudinal direction of the base portion 13. In the illustrated example, the widened portion forming the second engagement edge 13b extends so as to overlap the second fitting hole 38 with respect to the longitudinal direction of the base 13, but the second engagement The portion of the edge portion 13b that engages with the second overhang portion 34b is opposite to the first engagement edge portion 13a with respect to the second fitting hole 38 in the longitudinal direction of the base portion 13 (different side). Is located. Thereby, in the positioning state in which the fitting projection 36 is fitted in the second fitting hole 38, the respective engagement positions of both the engagement edge portions 13a and 13b and the both overhang portions 34a and 34b with respect to the insertion portion. Are positioned on different sides, that is, on both sides, the base 13 is pressed against the lift of the portion where the second fitting hole 38 is provided, so that the positioning of the base 13 in the longitudinal direction is reliably maintained. Is done.

  The connector 33 in which the terminal piece 4 is assembled to the housing 31 in this way is assembled to the connector housing 41 as shown in FIG. 11, for example. The shape of the connector housing 41 has various shapes depending on the part to be used, and the illustrated example is an example.

  The connector housing 41 is formed with a holding groove 42 in which the housing 31 can be inserted in the longitudinal direction (the direction of arrow E in the figure) and the end in the insertion direction is closed. The holding groove 42 is made narrower than the width of the housing 31 so that the rectangular cross-section portion 42 a that receives the housing 31 and the contact portion 4 a that protrudes above the housing 31 in the connector 33 can protrude outward. However, it is formed in the convex cross-sectional shape by the slit 42b wider than the width | variety of the contact part 4a. As a result, the housing 31 inserted into the holding groove 42 is prevented from coming off from the upper side on the slit 42b side.

  Engaging protrusions 43 projecting sideways are provided on both side surfaces of the housing 31 of the connector 33, and engaging recesses 44 are formed on both inner side surfaces of the holding groove 42 corresponding to the rectangular cross-section portion 42 a. Are provided. When the housing 31 inserted into the rectangular cross-section portion 42a of the holding groove 42 reaches a predetermined position, the engaging protrusion 43 enters the engaging recess 44 and engages with each other, so that the housing 31 is opposite to the insertion direction. It is secured against the side.

  FIG. 12 is a partial side view for explaining an example of the usage state. In a state where the connector 33 is assembled to the connector housing 41, the contact portion 4a is connected to the mating terminal 23 of the mating connector 45 by, for example, coupling the mating connector 45 to the connector housing 41 in a stacked state as indicated by the arrows in the figure. Contact.

  FIG. 13 is a fragmentary perspective view corresponding to FIG. 9 showing a second embodiment to which the present invention is applied, and FIG. 14A is broken along the XIVa-XIVa line in FIG. FIG. 14B is a view corresponding to FIG. 14A showing a positioning state of the terminal piece 4. In addition, about the part similar to the above, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  In the second embodiment, a second engagement edge 13d corresponding to the second engagement edge 13b extends from the end of the base 13 in the extending direction into a pair of left and right tongue pieces in the extending direction. It is formed as follows. In addition, in this 2nd Embodiment, the trunk | drum 13c in the said 1st Embodiment is the shape extended to the extension end of the base 13, and in connection with it, from the inversion part 14a in the contact part 4a, the contact part 14c and folding | turning back The portion reaching the portion 14d is formed so as to be narrower than the same portion of the first embodiment.

  A second overhang portion 34c corresponding to the second overhang portion 34b is formed on the side wall 32b on the end wall 32c side. A second engagement groove 35c is formed between the bottom surface 32a and the second overhang portion 34c. The second overhang portion 34c and the second engagement groove 35c are different from each other only in the position of the second overhang portion 34c and the second engagement groove 35c. The shape may be the same as that of the engaging groove 35b.

  Also in the second embodiment configured as described above, the terminal piece 4 is slid in the direction indicated by the arrow D from the temporarily fixed state of FIGS. The engagement edge portion 13a is inserted into the first engagement groove 35a, and the second engagement edge portion 13d is inserted into the second engagement groove 35c provided in the end wall 32c. In the first embodiment, when the base portion 13 is slid, the engagement edge portions 13a and 13b are slightly lifted from the bottom surface 32a when the portion between the fitting holes 37 and 38 in the base portion 13 once gets over the fitting protrusion 36. The second engagement edge 13d is a part away from the part between the two fitting holes 37 and 38 and extends away from the part. Lifting when getting over is suppressed, and the second engagement edge 13d can be easily inserted into the second engagement groove 35c.

  In the illustrated example, the second overhang portion 34c is integrated with the end wall 32c so as to continue between both side walls 32b. However, each second engagement edge portion 13d is inserted into the second overhang portion 34c. It is only necessary to provide a second engaging edge portion 13d that can be joined, and it may be divided at an intermediate portion between both side walls 32b. The relationship between each fitting hole 37 and 38 and the fitting projection 36 is the same as that of the first embodiment. In the positioning state in which the fitting projection 36 is fitted into the second fitting hole 38, the first embodiment. Similarly, the terminal piece 4 is assembled to the housing 31 in a fixed state. Also in the second embodiment, the same operational effects as those of the first embodiment can be obtained.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to such embodiments and can be easily understood by those skilled in the art. It is possible to make appropriate changes without departing from For example, in the above embodiment, the terminal piece 4 is slid to the front side opposite to the cable 22 side, but may be slid to the rear side to be the cable 22 side. In this case, the second overhang portion 34a is provided with a second engagement groove 35b into which the second engagement edge portion 13b is inserted, and the second overhang portion 34b is not provided with an engagement groove. The first engagement groove 35a into which the first engagement edge 13a is inserted may be provided in the portion of the 31 where the small-width recess 32e is formed, and a slope or a chamfered portion provided at an appropriate position is also provided on the opposite side. Can respond.

  In addition, all the components shown in the above embodiment are not necessarily essential, and can be appropriately selected without departing from the gist of the present invention. For example, in the first and second embodiments, each pair of engagement edge portions 13a and 13b (13a and 13c) is provided in the longitudinal direction of the base portion 13, but either one or both of the left and right sides are provided. Only one place may be provided as a predetermined edge. In the case where the predetermined edge portion is provided at one place, the corresponding overhang portion is provided so as to largely cover the vicinity of the second fitting hole 38 and the vicinity of the center of the base portion 13. What is necessary is just to be able to suppress a lift.

4 Terminal piece 4a Contact portion 13 Base portion 13a First engagement edge portion 13b / 13c Second engagement edge portion 22 Cable 23 Mating terminal 31 Housing 32a Bottom surface 32b Side wall 32c End wall (stopper)
33 Connector 34a 1st overhang part 34b * 34c 2nd overhang part 36 Insertion protrusion 36a Slope 36b Curved surface 37 1st fitting hole 37a Chamfering part 38 2nd fitting hole

Claims (6)

A connector having a terminal piece formed by bending a metal plate-like body, and a housing for holding the terminal piece,
The terminal piece is bent in a direction that is reversed from one end in the longitudinal direction of the long plate-like base and the base, and extends toward the other end of the base, thereby facing away from the base. And a contact portion configured to elastically contact the mating terminal,
The base has a first fitting hole, and a second fitting hole provided at a predetermined interval in the longitudinal direction of the base with respect to the first fitting hole,
The housing is protruded at a predetermined position on the bottom surface for supporting the base portion in the mounting state, and can be fitted into both the fitting holes in a state where the base portion is mounted on the bottom surface. In the inserted state, the base has a fitting protrusion for restricting sliding in the longitudinal direction of the base, and a side wall configured to receive the base and be placed on the bottom surface,
The side wall is not engaged with a predetermined edge of the base portion when the insertion protrusion is inserted into the first fitting hole, and the insertion protrusion is inserted into the second fitting hole. Then, it has an overhang portion that engages with the predetermined edge portion,
In order to allow the base to move in a sliding direction from a state in which the insertion protrusion is inserted into the first fitting hole to a state in which the insertion protrusion is inserted into the second fitting hole, the base of the insertion protrusion A connector having a slope or a curved surface directed toward the bottom surface on a side opposite to the sliding direction or a side opposite to the sliding direction of the first fitting hole. The predetermined edge portion includes a first engagement edge portion and a second engagement edge portion provided at a position spaced in the longitudinal direction with respect to the first engagement edge portion. ,
The overhang portion includes a first overhang portion that engages with the first engagement edge portion, and a second overhang portion that engages with the second engagement edge portion. The connector according to claim 1.   The connector according to claim 2, wherein the first and second engaging edge portions are arranged on different sides with respect to the second fitting hole in the longitudinal direction. The predetermined edge comprises a pair of engagement edges widened to the left and right of the base,
The connector according to claim 1, wherein a pair of the overhang portions are provided on the left and right side walls. The predetermined edge comprises a pair of engaging edges extending in the longitudinal direction from the vicinity of the one end in the longitudinal direction of the base,
The connector according to claim 1, wherein the overhang portion is provided on the one end side in the longitudinal direction of the base portion on the side wall.   The stopper which determines the limit of the said sliding direction of the said base is provided in the said housing in the position where the said insertion protrusion fits in the said 2nd fitting hole. A connector according to any one of the above.

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