JP2011065883A - Crimping terminal and crimping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crimping structure of a crimping barrel capable of attaining a crimped state without bringing force breaking of a core wire upon crimping. <P>SOLUTION: Projecting sections 46 projecting to an insulating member 30 are formed at inner sides facing to an insulating member 30 of respective side wall sections 44A, 44C by warping the side wall sections 44A, 44C so as to separate tips of the side wall sections 44A, 44C from the insulating member 30. The insulating member 30 is crimped to a bottom plate section 41 and an inside of the side wall sections 44A, 44C by being pinched with the bottom plate section 41 and the projecting sections 46 of the side wall sections 44A, 44C. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention provides a crimp terminal capable of preventing damage to a core wire during crimping with a shielded wire connector (for example, an antenna plug connector) electrically connected to a terminal portion of a shielded wire (coaxial cable), and the like, and The present invention relates to a crimping device for crimping the crimp terminal.

  2. Description of the Related Art In recent years, transmission electric signals have been increased in speed (increased in frequency) in automobile electrical devices such as car navigation systems. In order to transmit such a high-frequency electrical signal, a shielded cable that supports high frequency is used. However, as the electrical signal transmitted increases, the shield connector connected to the terminal portion of the shielded cable also has a high frequency. There is an increasing demand for miniaturization.

  As a structure of a shielded cable, for example, in a so-called coaxial cable, usually, a plurality of signal lines including a core wire in which a plurality of metal wires are bundled as an electric signal transmission path and an insulator covering the outer periphery thereof are also provided. The shield conductor is covered with a shield conductor made of braided wire, and the outer periphery of the shield conductor is covered with an insulating sheath, and the shield conductor covers the outer periphery of the core wire without any gaps. Shield to.

  Generally, a shield connector connected to a terminal portion of a shielded cable that transmits a high-frequency signal is connected to an inner conductor terminal that is connected to a core wire that transmits the high-frequency signal and a shield conductor such as a braided wire. And an outer conductor terminal for electromagnetically shielding the outer periphery of the inner conductor terminal and a dielectric having a predetermined dielectric constant provided between the inner conductor terminal and the outer conductor terminal. The core wire of the shield cable and the shield conductor are individually electrically connected.

As a conventional shield connector, there exists a thing as disclosed by patent document 1, for example.
That is, as shown in FIG. 10, this shield connector is applied to the shield terminal (outer conductor terminal) 102 provided in the shield connector 101 on the shield conductor Wd exposed by peeling the sheath We of the shield cable W end portion. A pair of shield conductor crimping pieces 103, 104 to be tightened is provided, and these shield conductor crimping pieces 103, 104 are added so that the other seal conductor crimping piece 104 is overlaid on one shield conductor crimping piece 103. It is tightened. In the figure, reference numeral 105 denotes an inner conductor terminal, 106 denotes a dielectric, 107 denotes a crimping portion, 108 and 109 denote sheath crimping pieces, and 110 denotes a lead frame.

  A mesh-shaped knurled groove 111 is formed on the inner surfaces of the pair of shield conductor crimping pieces 103, 104, and is superimposed on one shield conductor crimping piece 103 among the inner surfaces of the other shield conductor crimping piece 104. The mesh knurled groove 111 is not formed in the portion.

  As shown in FIG. 11A, the shield conductor crimping piece crimper 200A and the anvil 200B, and the sheath crimping piece crimper 300A and the anvil 300B are used for the shield connector 101 before caulking. When performing the caulking process as shown in (B), the caulking process is performed according to the procedure shown in FIG.

  That is, in this caulking process, as shown in FIG. 12A, the shield conductor crimping piece crimper 200A has an asymmetric mold inner wall surface shape in which two peaks having different heights are connected. The timing at which each of the shield conductor crimping pieces 103 and 104 forming the left and right pair is bent is shifted. Accordingly, it is possible to prevent the caulking process from being brought into contact with each other during the caulking process.

In this case, as shown in FIG. 12B, the crimper 200A descends from above the shield conductor crimping pieces 103 and 104 and the shield conductor Wd of the coaxial cable W placed thereon, and first the shallow crimper 200A is shallow. The right shield conductor crimping piece 103 comes into contact with the depression 201 and begins to bend inward along the shallow depression 201. When the crimper 200A continues to descend, the left shield conductor crimping piece 104 comes into contact with the deep recess 202 of the crimper 200A and begins to bend inward along the deep recess 202.
At this time, a taper surface 104A is formed on the inner surface of the tip of the left shield conductor crimping piece 104, and a taper surface 103A is formed on the outer surface of the tip of the right seal conductor crimping piece 103. When the leading end hits, the shield conductor crimping piece 103 is guided inside, and the shield conductor crimping piece 104 is guided outside.

Next, as shown in FIG. 12C, the tip of the right shield conductor crimping piece 103 that has begun to be bent first is guided and guided downward by the protrusion 203 near the center of the crimper 200A. Further, the tip of the left shield conductor crimping piece 104 that has started to bend with a bend is bent so as to overlap the right shield conductor crimping piece 103.
12D, the tip of the right shield conductor crimping piece 103 is below the left shield conductor crimping piece 104, and the tip of the left shield conductor crimping piece 104 is the right shield conductor crimping piece 103. The caulking process is completed by evenly overlapping from both the left and right sides.

  On the other hand, the crimper 300A for the sheath crimping piece also has a left-right asymmetric mold inner wall surface shape in which two peaks having different heights are connected, and the tips of the crimping pieces abut each other during caulking. A caulking process failure is prevented, and the same operation as the shield conductor crimping piece crimper 200A is performed.

JP 2005-93173 A JP 2008-287899 A

  However, as described above, during the caulking process in which the braided wire is tightened from the outside, the tightening force acts in a direction substantially coinciding with the central axis of the core wire, so that the stress is concentrated on the core wire, The core wire might break.

  The present invention has been made in view of the above-described circumstances, and a purpose thereof is a crimp terminal and a crimping apparatus that can realize a stable adhesion state without causing disconnection of a core wire during caulking. Is to provide.

In order to achieve the above-described object, the crimp terminal according to the present invention is characterized by the following (1) to (3).
(1) An object placed on the bottom plate portion is crimped and crimped by the bottom plate portion and each side wall portion by a crimping barrel having a bottom plate portion and a pair of side wall portions rising from the bottom plate portion. A crimp terminal,
On the inner side facing the object of each side wall part, a convex part that protrudes toward the object is formed by warping the side wall part so that the tip of the side wall part is separated from the object,
The object is crimped to the inside of the bottom plate portion and the side wall portion by being sandwiched by the convex portions of the bottom plate portion and the side wall portions.
thing.
(2) A crimp terminal having the configuration of (1) above,
The convex portions of the side wall portions are formed at positions sandwiching the center of the object that is crimped to the inside of the bottom plate portion and the side wall portions,
thing.
(3) A crimp terminal having the configuration of (1) above,
The convex portion of each side wall portion is formed at a position approximately equidistant from the tip of the side wall portion,
thing.

According to the crimp terminal having the configuration of the above (1) and (2), the external force at the time of caulking is applied to a place deviating from the center of the object. For this reason, when the object is an electric wire, the core wire located at the center of the object is not disconnected, and a stable crimped state can be realized. That is, it is possible to avoid excessive stress concentration at the center of the object.
According to the crimp terminal having the configuration of the above (3), an external force at the time of caulking can be applied to a location that is substantially evenly separated from the center of the object. For this reason, it becomes possible to form the caulked object in the right and left equal shape.

In order to achieve the above-described object, the crimping apparatus according to the present invention is characterized by the following (4) and (5).
(4) The bottom plate portion, the pair of side wall portions rising from the bottom plate portion, and the crimping barrel of the crimp terminal having the side wall portions are folded inward by an anvil and a crimper, and placed on the bottom plate portion. A crimping device for crimping the bottom plate portion and each side wall portion to a target object,
On the ceiling surface of the crimper, a locking groove for locking the tip of each side wall portion of the crimp barrel placed on the anvil is formed,
On both leg portions of the crimper, a protrusion is formed that locally presses a part of the side wall portion whose tip is locked in the locking groove.
thing.
(5) A crimping device configured as described in (4) above,
The protrusions of the both leg portions are formed at substantially equidistant positions from the locking groove.
thing.

According to the crimping apparatus having the configuration (4), the external force during the caulking process acts at a location deviating from the center of the object. For this reason, when the object is an electric wire, the core wire located at the center of the object is not disconnected, and a stable crimped state can be realized. That is, it is possible to avoid excessive stress concentration at the center of the object.
According to the crimping device having the configuration (5), an external force during caulking can be applied to a location that is approximately evenly spaced from the center of the object. For this reason, it becomes possible to form the caulked object in the right and left equal shape.

  According to the crimp terminal and the crimping apparatus of the present invention, a stable contact state can be realized without causing disconnection of the core wire during the caulking process.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading the embodiments for carrying out the invention described below with reference to the accompanying drawings.

(A) is a disassembled perspective view of the connector with a shielded wire before the crimping terminal of the embodiment according to the present invention is crimped, and (B) is a perspective view showing a state after the crimping. (A) is the cross-sectional perspective view of the principal part of the crimp terminal of embodiment which concerns on this invention of the state with which the shield electric wire was mounted | worn, (B) is the cross-sectional front view. (A) to (C) is a plan view for explaining the state when the crimping barrel of the crimping terminal according to the present invention is processed. It is explanatory drawing which shows the crimping | compression-bonding apparatus for crimping | bonding the crimp terminal of this invention. It is explanatory drawing which shows the principal part by the side of the crimper of the crimping | compression-bonding apparatus of this invention. (A) is a perspective view showing the relative relationship between the locking groove on the crimper side of the crimping device of the present invention and the tip of each side wall portion of the crimping barrel portion, and (B) is the locking groove when viewed from above. It is a top view which shows typically the relative relationship with the front-end | tip of each side wall part of a crimping | compression-bonding barrel part. (A) And (B) is explanatory drawing which shows the front | former stage which processes the crimp terminal of this invention, respectively. (A) And (B) is explanatory drawing which shows the middle step of the crimping | compression-bonding method of the crimp terminal of this invention, respectively. (A) And (B) is explanatory drawing which shows the back | latter stage of the crimping method of the crimp terminal of this invention, and the state at the time of completion of a process, respectively. It is the external appearance perspective view of the shield connector provided with the conventional outer conductor terminal, Comprising: (A) is the external appearance perspective view which looked at the shield connector from diagonally right back, (B) is the perspective view which looked at the shield connector from diagonally left back It is. (A) is an external perspective view of the state before crimping by the crimper and anvil for the shield conductor crimping piece and the crimper and anvil for the sheath crimping piece, as viewed from the front of the shield connector, and (B) is the crimping process of (A). It is an external appearance perspective view of the shield connector of a back state. FIGS. 11A to 11D are cross-sectional views taken along line A-A in FIG. 11A, and are diagrams sequentially illustrating a caulking process using a shield conductor crimping piece.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings.
1A and 1B are respectively an exploded perspective view of a connector 10 with a shielded electric wire before a crimp terminal according to an embodiment of the present invention is crimped and a connector 10 with a shielded electric wire to which a crimping structure is applied. It is a perspective view of a part.

  As shown in FIG. 1, the shielded electric wire W of this embodiment includes a core wire W1 that is an internal conductor and an insulator (dielectric or internal) that extends in the longitudinal direction of the core wire W1 while surrounding the outer peripheral surface of the core wire W1. Coating) W2, a shield conductor (such as a braid) W3 extending in the longitudinal direction while surrounding the outer peripheral surface of the insulator W2, and a sheath W4 (external) extending in the longitudinal direction while surrounding the outer peripheral surface of the shield conductor W3 A coaxial cable.

  Moreover, in the connector 10 with a shielded wire of the present embodiment, a connector for the shielded wire W is used as a connector, and the core wire conduction terminal 20 connected to the core wire W1 and the core wire W1 are electrically connected. An insulating member 30 that accommodates the connected core wire conduction terminal 20 in the accommodation hole 31 and a shield terminal 40 that is an aspect of the crimp terminal to which the shield member W3 is connected while the insulating member 30 is crimped. In the present embodiment, a shield terminal is exemplified as one embodiment of the crimp terminal according to the present invention, but the crimp terminal according to the present invention is not limited to the shield terminal. The crimping method for crimping the insulating member 30 with the shield terminal will be described in detail. However, the object to be crimped by the crimp terminal is not limited to the insulating member 30.

  The core wire conduction terminal 20 has an electrical connection portion 21 that is electrically connected to the core wire of the shielded electric wire on the connection partner side on the forward side in the insertion direction to the insulating member 30, while the insertion direction reverse to the insulating member 30 is reversed. On the side, a core wire connecting portion (not shown) that is electrically connected to the core wire W1 of the shielded electric wire W is provided.

  The shield terminal 40 is formed of a conductive metal plate. This shield terminal 40 has an insulating member 30 (provided that the insulating member 30 surrounds the core wire conducting terminal 20 while surrounding the core wire conducting terminal 20) at a bottom plate portion 41 that is long along the axial direction of the shielded electric wire W. Is provided with a cylindrical portion 42 that fits the tip end side of the shield wire W and a shield member connection portion 43 that is electrically connected to the shield member W3 of the shielded electric wire W at the other end. ing. The shield member connecting portion 43 of the shield terminal 40 shown in FIG. 1 is electrically connected to the shield member W3 by crimping the shield member W3 at one end of the shielded electric wire W.

  Further, the shield terminal 40 is formed with a crimp barrel portion 44 to which the crimping structure of the present invention is applied at an intermediate portion between the cylindrical portion 42 and the shield member connection portion 43. In order to fix the insulating member 30, which is an insulator, to the shield terminal 40, the crimping barrel portion 44 wraps the insulating member 30 so that the outer surface side is near the intermediate portion in the extending direction of the side wall portion 44 </ b> A described later. A recess 45 that is recessed toward the inner surface is formed.

  As shown in FIG. 2, the side wall portion 44 </ b> A having such a configuration has a convex portion 46 protruding toward the insulating member 30 on the inner surface side corresponding to the concave portion 45 provided on the outer surface side of the side wall portion 44 </ b> A. The reason why the concave portion 45 and the convex portion 46 are formed in the side wall portion 44A is that the side wall portion 44A is bent and bent so that the front end of the side wall portion 44A is separated from the insulating member 30. As a result, in the side wall portion 44 </ b> A, the convex portion 46 comes into contact with the insulating member 30. Thereby, the insulating member 30 is clamped between the bottom plate part 41 and the side wall part 44A by being sandwiched between the convex part 46 and the bottom plate part 41 of each side wall part 44A. Note that the side wall portion 44C has the same configuration as the side wall portion 44A.

  The crimp barrel portion 44 of the shield terminal 40 of the present embodiment is constituted by a pair of crimp barrel pieces 440 having a point-symmetric relationship formed in a complementary shape, as shown in a development view in FIG. Is done. By applying a predetermined bending process to the pair of crimp barrel pieces 440, before the insulating member 30 is crimped, as shown in FIGS. 1A, 3B, and 7A, It has a substantially U-shaped cross section that expands upward. In addition, as shown in FIGS. 1 (B), 2 (A), 2 (B), and 3 (C), the crimping barrel portion 44 is bent at the side walls 44A and 44C after being crimped. By crimping the insulating member 30, the end portions of the side wall portions 44A and 44C are adjacent to each other without being in contact with each other and extend obliquely upward by approximately 45 degrees to intersect with each other.

  Here, the crimping barrel piece 440 (see FIG. 3A) of the crimping barrel portion 44 until just before the crimping will be described in more detail. As shown in FIGS. 2A and 3, a pair of side wall portions 44 </ b> A and 44 </ b> C rising from the bottom plate portion 41 includes a wide base portion 441 and a front end portion extending in the front end direction in a narrow shape from the base portion 441. 442.

  The side wall portions 44A and 44C have a predetermined first angle upward from both sides of the bottom plate portion 41 before being crimped (angle θ inward with respect to the horizontal direction parallel to the bottom plate portion 41; see FIG. 4A). And is bent in a substantially E-shape (see FIGS. 2B and 8B) toward the bottom plate portion 41 during the subsequent crimping operation. .

  That is, in order to crimp the insulating member 30 between the bottom plate portion 41 and the side wall portions 44A and 44C of the crimp barrel portion 44, as shown in FIGS. 2 (B) and 9 (B), One concave portion 45 (may be two or more) is formed on the outer surface of the intermediate portion in the longitudinal direction from the base portion to the distal end of each side wall portion 44A, 44C. At this time, the recessed part 45 is formed in the position of substantially equal distance from the front-end | tip of each side wall part 44A, 44C. As a result, a locally projecting convex portion 46 is formed on the inner surface portion corresponding to the portion where the concave portion 45 is formed on the outer surface of the intermediate portion of each of the side wall portions 44A and 44C. Are in close contact with each other.

  On the other hand, the crossing portion on the distal end side of both side wall portions 44A and 44C of the crimping barrel portion 44 that crimps and crimps the insulating member 30 is relative to the top portion T (see FIG. 9B) of the central portion of the insulating member 30. The space S (see FIG. 2B and FIG. 9B) is formed with the top T. For this reason, the caulking stress at the time of caulking the both side wall portions 44A and 44C does not concentrate on the top portion T of the insulating member 30, and for this reason, it concentrates on the core wire W1 located substantially in the center of the insulating member 30. Thus, the external force is avoided.

Next, a crimping method for crimping the above-described crimp terminal by the crimping apparatus according to the present invention will be described in detail with reference to the drawings.
The crimping method of the present embodiment is based on the crimping barrel portion 44 particularly when the shield terminal 40 is attached to the shielded electric wire W to which the core wire conducting terminal 20 and the insulating member 30 are attached as shown in FIG. There is a feature in the processing method when the insulating member 30 is pressure-bonded, which will be described with reference to the drawings.

  First, an anvil 50 and a crimper 60 constituting the main part of a crimping apparatus (crimping jig) according to the present invention used when performing this crimping method will be described with reference to FIGS. 4 and 5. In this crimping apparatus, the crimping terminal 40 including the bottom plate portion 41 and the pair of sidewall portions 44A and 44C rising from the bottom plate portion 41 is sidewalld by the anvil 50 and crimper 60 so as to wrap the insulating member 30 from the outside. The projections 46 are formed by pressing a part of the portions 44A and 44C. Thereby, the insulating member 30 is crimped between the bottom plate portion 41 and the side wall portions 44A and 44C to be pressure-bonded.

  The anvil 50 has a recess 51 on the upper surface for mounting the bottom plate portion 41 of the crimp barrel portion 44.

  On the other hand, in order to lock the side wall portions 44A and 44C to the crimper 60, locking grooves 61 and 62 having recesses of the same depth are alternately formed in the ceiling portion between both leg portions 63 (that is, They are arranged side by side in a point-symmetrical relationship (in the opposite direction of 180 degrees) (see FIGS. 5 and 6).

  Further, on both leg portions 63 of the crimper 60, protrusions that press the intermediate portions of the side wall portions 44A, 44C of the crimping barrel portion 44 in the middle of caulking, with the tips locked to the locking grooves 61, 62, are inward. 64 and 65 are formed. The protrusions 64 and 65 are provided at substantially equal distances from the locking grooves 61 and 62. The protrusions 64 and 65 of both the leg portions 63 of the crimper 60 press (clamp) the intermediate portions of the side wall portions 44A and 44C of the crimp barrel portion 44, whereby the side walls 44A and 44C of the crimp barrel portion 44 are The insulating member 30 is configured to be crimped by the convex portion 46 formed at the intermediate portion and the bottom plate portion 41.

  Next, a crimping method for crimping the crimp terminal of the present invention will be described with reference to FIGS. The crimping method according to the present embodiment includes the first to sixth steps.

  (1) First, in the first step, the distal end portions of the side wall portions 44A and 44C of the crimping barrel portion 44 of the shield terminal (crimp terminal) 40 are formed on the first inner peripheral surface 63A provided alternately on both the leg portions 63 of the crimper 60. Are brought into contact with each other (see FIGS. 6A and 7A).

  (2) In the second step, the anvil 50 is raised toward the crimper 60 (reversely, the crimper 60 may be lowered toward the anvil 50. The same applies hereinafter) In the locking grooves 61 and 62, which are alternately arranged on the ceiling portion (that is, opposite to each other by 180 degrees) and arranged in parallel, each having a recess of the same depth, the crimp barrel portion 44 of the shield terminal (crimp terminal) 40 is provided. The front end portions of the side wall portions 44A and 44C are locked (see FIGS. 6B and 7B).

  (3) In the third step, the anvil 50 is further raised toward the crimper 60, and the outer peripheral surfaces of the side walls 44 </ b> A and 44 </ b> C of the crimping barrel 44 are connected to the locking grooves 61 of both legs 63 of the crimper 60. , 62 are brought into contact with second inner peripheral surfaces 63B provided alternately (see FIG. 8A).

  (4) In the fourth step, by further raising the anvil 50 toward the crimper 60, the outer peripheral surface of the intermediate part of the side wall parts 44 </ b> A, 44 </ b> C of the crimping barrel part 44 is projected between the leg parts 63 of the crimper 60. The depression 45 is formed by being pressed by 64 and 65. Accordingly, a convex portion 46 constituting the crimping portion is formed on the inner peripheral surface of the intermediate portion of the side wall portions 44 </ b> A and 44 </ b> C of the crimping barrel portion 44 corresponding to the concave portion 45, and the convex portion 46 is formed on the insulating member 30. Press (see FIG. 8B). In addition, the convex part 46 which comprises a crimping | compression-bonding part protrudes in the position (more specifically, the position which pinches | interposes the center of the insulating member 30 used as the target object to be crimped) which pinches | interposes the top part T of the insulating member 30, and is cross-sectional until then The insulating member 30 having a perfect circle shape has an elliptical shape that is flat horizontally. Thereby, since a big stress does not concentrate in the core line W1 direction provided in the center part of the insulating member 30, it can avoid that the core line W1 breaks.

  (5) In the fifth step, the anvil 50 is further raised toward the crimper 60 so that the anvil 50 enters the crimper 60 between the leg portions 63 of the crimper 60 (see FIG. 9A). . Accordingly, the insulating member 30 is crimped and crimped between the convex portion 46 on the inner peripheral surface of the intermediate portion of the side wall portions 44 </ b> A and 44 </ b> C of the crimp barrel portion 44 and the bottom plate portion 41.

  On the other hand, among the portions of the crimping barrel portion 44 that has been crimped by crimping the insulating member 30, the intersecting portion at the tip of the side wall portions 44 </ b> A and 44 </ b> C is not in contact with the top portion T of the central portion of the insulating member 30. . That is, a space S is formed between the intersecting portion of the front ends of the side wall portions 44 </ b> A and 44 </ b> C and the top portion T of the insulating member 30. This also contributes to avoiding stress due to the caulking process from being concentrated on the core wire W1.

  (6) In the final sixth step, the anvil 50 and the crimper 60 are removed from the shield terminal 40 by retracting the anvil 50 downward away from the crimper 60. Thus, the insulating member 30 is crimped by the crimping barrel portion 44, and the shield terminal 40 is attached in close contact with the shielded electric wire W to which the core wire conduction terminal 20 and the insulating member 30 are attached (FIG. 1). (See (B), FIG. 2 (B) and FIG. 9 (B)).

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 10 Connector with shield wire 20 Core wire conduction terminal 21 Electrical connection part 30 Insulation member 40 Shield terminal (crimp terminal)
41 Bottom plate part 42 Cylindrical part 43 Shield member connection part 44 Crimp barrel part 44A, 44C Side wall part 440 Crimp barrel piece 45 Recess 46 Protrusion 50 Anvil 51 Recess 60 Crimper 61, 62 Locking groove 63 Both legs 63A First inner peripheral surface 63B 2nd inner peripheral surface 64, 65 Protrusion S Space T (Insulating member) Top part of central part W1 Core wire W2 Insulator W3 Shield conductor (braided wire)
W4 sheath (external coating)

Claims (5)

A crimp terminal in which an object placed on the bottom plate part is crimped and crimped by the bottom plate part and the side wall parts by a crimp barrel having a bottom plate part and a pair of side wall parts rising from the bottom plate part. Because
On the inner side facing the object of each side wall part, a convex part that protrudes toward the object is formed by warping the side wall part so that the tip of the side wall part is separated from the object,
The object is crimped to the inside of the bottom plate portion and the side wall portion by being sandwiched by the convex portions of the bottom plate portion and the side wall portions.
Crimp terminal characterized by that. The convex portions of the side wall portions are formed at positions sandwiching the center of the object that is crimped to the inside of the bottom plate portion and the side wall portions,
The crimp terminal according to claim 1. The convex portion of each side wall portion is formed at a position approximately equidistant from the tip of the side wall portion,
The crimp terminal according to claim 1. An object placed on the bottom plate portion by bending each side wall portion inwardly by a anvil and a crimper with a crimp barrel of a crimp terminal having a bottom plate portion and a pair of side wall portions rising from the bottom plate portion. A crimping device for crimping the bottom plate portion and the side wall portions,
On the ceiling surface of the crimper, a locking groove for locking the tip of each side wall portion of the crimp barrel placed on the anvil is formed,
On both leg portions of the crimper, a protrusion is formed that locally presses a part of the side wall portion whose tip is locked in the locking groove.
A crimping device characterized by that. The protrusions of the both leg portions are formed at substantially equidistant positions from the locking groove.
The crimping apparatus according to claim 4.

Images