JP2022154502A - Connection terminal and assembly electric wire provided with connection terminal - Google Patents

Abstract

To securely and easily fix a connection terminal to another connection terminal so as to communicate with an insertion hole in the other connection terminal.SOLUTION: A connection terminal includes a wire connecting portion 23 for connecting a wire 2, and an assembly connection portion 22 having an insertion hole 24 for inserting a fixing bolt 3 and to be assembled with a connection portion 12 having an insertion hole 16 in an assembly connection terminal 11, and the assembly connection portion 22 includes slide guide portions (26a, 26b) that guide the slide of the connection portion 12, and fixing portions (28, 29a) that fix the slid connection portion 12 to the assembly connection portion 22 at positions where the insertion holes 16 and 24 communicate with each other.SELECTED DRAWING: Figure 1

Description

The present invention provides a connection terminal provided with a wire connection portion for connecting a wire and an assembly connection portion to be assembled with a connection portion of another connection terminal, and a wire connection portion for both the connection terminal and the other connection terminal. The present invention relates to an assembled electric wire to which an electric wire is connected and in which a connecting portion and an assembling connecting portion are assembled.

For example, in order to ground connection terminals at the ends of a plurality of ground wires provided in a wire harness to the ground circuit in the vehicle body, the plurality of connection terminals are stacked and fastened together with a fixing bolt to the ground circuit. Conventionally, a plurality of ground wires are collectively grounded to one ground circuit.

Various techniques have been proposed as exemplified in Japanese Patent Application Laid-Open No. 2002-200316 regarding a connection structure of such a plurality of connection terminals to a ground circuit. Patent Literature 1 discloses a joint device arranged in a ground circuit and provided with a spring inside for stably contacting mutually stacked connection terminals and between the connection terminals and the ground circuit. .

By the way, when fastening a connection terminal to a ground circuit with a fixing bolt, the fixing bolt is inserted through an insertion hole formed through a connection portion of the connection terminal, including the case where the joint device of Patent Document 1 is provided. done.
However, when fastening a plurality of connection terminals with a single fixing bolt, it is necessary to insert the above-described fixing bolt through each insertion hole of the plurality of connection terminals, which is troublesome.

Therefore, in order to make the insertion holes of the plurality of connection terminals communicate with each other, the vicinity of the end portions of the plurality of ground wires are temporarily fixed by, for example, tape winding, and one fixing bolt is connected to the plurality of insertion holes. It has been conventionally practiced to collectively insert the

However, when tape is wound near the end of a plurality of ground wires, for example, the tape is wound around the connection portion instead of directly winding the connection portion itself having an insertion hole, or the tape itself is Due to various factors such as elasticity, there is a possibility that the plurality of connection terminals may be displaced from each other and the insertion holes between the plurality of connection terminals may not communicate with each other.

In this case, it is necessary to correct the misalignment of the plurality of connection terminals so that the respective insertion holes communicate with each other. There is a risk that the ground circuit cannot be stably grounded because the continuity cannot be ensured due to the failure.

JP-A-11-55823

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a connecting terminal and an assembled electric wire that can be reliably and easily fixed to another connecting terminal so as to communicate with an insertion hole in the other connecting terminal.

A connection terminal of the present invention includes a wire connection portion for connecting an electric wire, an insertion hole for inserting a fixing bolt, and an assembly connection portion to be assembled with the connection portion having the insertion hole in another connection terminal. The assembly connection portion is provided with a slide guide portion that guides the slide of the connection portion, and a fixing portion that fixes the slid connection portion to the assembly connection portion at a position where the insertion holes communicate with each other. characterized by

According to the above configuration, the connecting portion can be slidably guided by the slide guide portion to a position where the insertion holes communicate with each other. Furthermore, the connection portion can be fixed by a fixing portion at a position where the insertion holes communicate with each other.
According to the above configuration, the connection portion can be fixed to the assembly connection portion so that the insertion holes communicate with each other.

Therefore, the fixing bolts can be easily inserted into the respective insertion holes of the connection portion and the assembly connection portion, and the connection portion and the assembly connection portion are electrically connected to each other by tightening the fixing bolts. It is possible to assemble in a state in which durability is ensured.

For example, when grounding both the assembly connection part and the connection part to the ground circuit, the assembly connection part and the connection part are connected to the ground circuit by using a fixing bolt or the like inserted through the insertion hole that communicates with each other. can be reliably and easily grounded.

As a mode of the present invention, the wire connection portion may be arranged so that the wire extending in the same direction as the wire connected to the other connection terminal is connected in the assembled state.
According to the above configuration, the electric wire connected to the electric wire connection portion (connection terminal) and the electric wire connected to the other connection terminal can be connected in the same state when the assembly connection portion and the connection portion are assembled. The insertion holes of the connection terminal and the other connection terminal can be communicated with each other while being arranged in the direction, and the fixing bolt can be easily inserted through these insertion holes.

Further, as a mode of the present invention, the slide guide portion may be a locking portion that locks to the outer peripheral edge of the connection portion such that the assembly connection portion is slidable in the circumferential direction with respect to the connection portion.

According to the above configuration, the insertion holes are displaced from each other by guiding the assembly connection portion in the circumferential direction with respect to the connection portion while the locking portion is locked to the outer peripheral edge of the connection portion. It is possible to guide until a desired posture is achieved while maintaining a state in which they are difficult to communicate with each other.
Therefore, the assembly connecting portion and the connecting portion can be easily assembled in a desired posture.

Further, as an aspect of the present invention, the assembly connection portion may have a surface facing the main surface having the insertion hole in the connection portion, and the connection portion may have the insertion hole in the facing surface.

According to the above configuration, the connecting portion and the assembly connecting portion are fastened with fixing bolts inserted through the respective insertion holes, so that the main surface and the opposing surface are firmly in contact with each other. It is possible to stably ensure continuity between the connecting portion and the assembly connecting portion.

Further, according to the above configuration, when the connection portion is slidably guided with respect to the assembly connection portion, the main surface can be stably slid with respect to the opposing surface that is in surface contact with the main surface. can be easily and accurately guided.

Further, as an aspect of the present invention, a configuration may be adopted in which bolt holding means for holding the inserted fixing bolt while permitting its rotation about an axis may be provided on the peripheral edge of the insertion hole on the facing surface.
According to the above configuration, once the fixing bolt is inserted through the insertion hole, the fixing bolt can be held by the bolt holding means so as not to come off from the insertion hole. Therefore, the connection terminal can be temporarily fixed to other connection terminals with the fixing bolts, and for example, the connection terminal can be easily carried to the mounting location.

Furthermore, when using a fixing bolt to fasten the connection terminal to the mounting location, it is troublesome to prepare a fixing bolt separately from the connecting member, and it is difficult to insert each insertion hole between the facing surface of the assembly connection part and the main surface of the connection part. It is possible to easily fasten the connecting terminal to the mounting position together with other connecting terminals using the fixing bolts inserted through the respective insertion holes without requiring the trouble of inserting the fixing bolts.

Further, as a mode of the present invention, the assembly connection portion may be configured to have a side surface erected from the side of the facing surface.
According to the above configuration, when the connecting portion is slid and assembled with respect to the assembly connecting portion, the side surface can function as the slide guide portion.
Further, according to the above configuration, when tightening with the fixing bolt, the side surface can be regulated from the side so that the connection portion is not inadvertently rotated with respect to the assembly connection portion.

Further, as an aspect of the present invention, the opposing surfaces have a pair of opposing surfaces on both sides in the thickness direction with respect to the main surface, and the side surfaces laterally connect the pair of opposing surfaces to form the group. The attachment connection portion is box-shaped and has an insertion opening into which the connection portion can be inserted between the pair of opposing surfaces, and the connection portion is attached to the side surface by fastening the fixing bolt inserted through the insertion hole. may be provided with a deformation promoting portion that promotes deformation of the side surface in a direction in which the opposing surfaces of the contacting surfaces are brought close to each other and sandwich the connecting portion.

According to the above configuration, the connecting portion can be easily arranged between the pair of facing surfaces by inserting the connecting portion into the inside of the box-shaped assembly connecting portion through the insertion opening.

Furthermore, according to the above configuration, the side surfaces can be easily deformed in the direction in which the pair of opposing surfaces approach each other by the deformation promoting portion when the fixing bolt is tightened. As a result, the pair of opposing surfaces and the connecting portion arranged therebetween can be maintained in a state of being in surface contact with each other and firmly electrically connected.

Moreover, as an aspect of the present invention, the fixing portion may be a restricting portion that restricts movement of the connecting portion inserted from the insertion opening in the extraction direction.
According to the above configuration, the movement of the connection portion can be restricted by the restriction portion so that the connection portion inserted into the assembly connection portion does not inadvertently slip out of the insertion opening. Therefore, the restricting portion can be maintained in an assembled state in which the connection portion is inserted inside the assembly connection portion.

In addition, as an aspect of the present invention, the wire connection portion is provided on one of the opposing surfaces, and is arranged at a position not overlapping the insertion opening when viewed from the insertion direction of the connection portion into the insertion opening. may be

According to the above configuration, when the wire connecting portion is provided on one of the opposing surfaces and the connecting portion is inserted into the assembly connecting portion through the insertion opening, the connecting portion interferes with the wire connecting portion. The connecting portion can be smoothly inserted without any trouble.

Further, as an aspect of the present invention, the wire connecting portion is provided on one of the side surfaces, and is arranged at a position not overlapping the insertion opening when viewed from the direction in which the connecting portion is inserted into the insertion opening. good too.

According to the above configuration, when the wire connecting portion is provided on one of the side surfaces and the connecting portion is inserted into the assembled connecting portion through the insertion opening, the connecting portion interferes with the wire connecting portion. The connecting portion can be smoothly inserted without any trouble.

Further, as an aspect of the present invention, the wire connecting portion may be configured as an auxiliary fixing portion that assists fixing of the assembly connecting portion by the fixing portion.

According to the above configuration, the fixing portion cooperates with the electric wire connection portion as the auxiliary fixing portion to firmly fix the assembly connection portion at a position where the insertion holes communicate with the slid connection portion. can be fixed.

In addition, the assembled electric wire of the present invention includes the above-described connection terminal and the other connection terminal having the electric wire connection portion, and an electric wire is connected to both the electric wire connection portions, and the insertion holes are in communication with each other. wherein the connection portion and the assembly connection portion are assembled to the.

According to the above configuration, the connection portion and the assembly connection portion are assembled together so that the respective insertion holes communicate with each other. By fastening, the connection portion and the assembly connection portion can be assembled in a state in which mutual conductivity is reliably secured.

As a mode of the present invention, the electric wire connected to the connection terminal and the electric wire connected to the other connection terminal may be oriented in the same direction.
According to the above configuration, in the assembled state of the assembly connection portion and the connection portion, the electric wire connected to the connection terminal and the electric wire connected to the other connection terminal are arranged in the same direction. The insertion holes of the connection terminal and the other connection terminal can communicate with each other, and the fixing bolt can be easily inserted through these insertion holes.

Further, as an aspect of the present invention, the other connection terminal includes a plurality of connection terminal pieces each having a connection piece forming a part of the connection portion and the wire connection portion, and the connection pieces are laminated to each other. It is also possible to adopt a configuration in which a combined connection terminal is formed by combining a plurality of the connection terminal pieces such that the connection portion is formed by combining a plurality of the connection terminal pieces.

According to the above configuration, the insertion holes of the connection portion of the combination connection terminal and the insertion holes of the assembly connection portion can be communicated with each other.
Therefore, by tightening the fixing bolt, the connection terminal and the combination connection terminal can be assembled in a state in which mutual continuity is reliably secured.

Moreover, as an aspect of the present invention, the plurality of combination connection terminals may be configured such that the main surfaces are aligned in the same direction.

According to the above configuration, the main surface of any one of the plurality of combination connection terminals can be brought into contact with the opposing surface facing the main surface in a surface contact state.
As a result, it is possible to ensure excellent electrical conductivity between the main surface and the opposing surface when fastening with the fixing bolt.

Moreover, as an aspect of the present invention, the plurality of combination connection terminals may be configured such that the main surfaces are arranged in opposite directions.
According to the above configuration, since the main surfaces can be brought into surface contact with each other, excellent electrical conductivity between the main surfaces can be ensured when fastening with the fixing bolt.

ADVANTAGE OF THE INVENTION According to this invention, the connecting terminal which can be reliably and easily fixed to another connecting terminal so that it may connect with the insertion hole in another connecting terminal, and an assembly electric wire can be provided.

(a) is a plan view showing the essential parts of the assembly electric wire of the present embodiment, (b) is a front view seen from the base end side in the longitudinal direction, (c) is a rear view seen from the tip end side in the longitudinal direction, (d) is a side view seen from one side in the width direction. (a) is a cross-sectional view taken along the line AA of FIG. 2(a), and (b) is a cross-sectional view taken along the line BB of FIG. 2(d). The procedure for assembling the connection part of the combination connection terminal to the box-shaped assembly connection part is shown in (a) before assembly, (b) in the middle of grounding, and (c) in the completed assembly. Explanatory drawing shown in the cross section corresponding to 2 (a). 2(a) and 2(b), respectively, showing a procedure for grounding the connection portion and the assembly connection portion to the ground circuit, in cross-sections corresponding to FIG. (a) is a plan view showing a main part of an assembled electric wire according to the present embodiment, (b) is a front view seen from the base end side in the longitudinal direction, and (c) is seen from one side in the width direction. side view. (a) is a plan view showing the main part of the assembled electric wire of Modification 1, (b) is a front view seen from the base end side in the longitudinal direction, (c) is a rear view seen from the tip end side in the longitudinal direction, (d) is a side view seen from one side in the width direction, and (e) is a side view seen from the other side in the width direction. The procedure for assembling the connection portion of the combination connection terminal to the assembly connection portion of the modified example 1, (a) is the state before assembly, (b) is the state during assembly, and (c) is the completed state of assembly. Explanatory drawing shown corresponding to Fig.6 (a), respectively. (a) is a plan view showing the main part of the assembled electric wire of modification 2, (b) is a front view seen from the distal end side in the longitudinal direction, (c) is a rear view seen from the proximal end side in the longitudinal direction, (d) is a side view viewed from one side in the width direction, (e) is a cross-sectional view taken along line CC of (a), (f) is a cross-sectional view taken along line DD of (a), ( g) is a cross-sectional view taken along line EE of (a); The procedure for assembling the connection portion of the combination connection terminal to the assembly connection portion of Modified Example 2 is shown in FIG. The explanatory view shown. FIG. 3 (a) shows the states in which the connection portions of the plurality of combination connection terminals are assembled to the assembly connection portion so that the main surfaces are in the same direction, and (b) is so that the main surfaces are in the opposite direction. Explanatory drawing shown in the cross section corresponding to c). (a) is a plan view showing the periphery of an insertion hole of an assembly connection portion of another modification, and (b) is a cross section corresponding to FIG. The explanatory view shown.

An embodiment of the invention will be described below with reference to the drawings.
In the drawings, arrow Y indicates the longitudinal direction, arrow X indicates the width direction, and arrow Z indicates the vertical direction. Further, the arrow Ya indicates the distal end side in the longitudinal direction, the arrow Yb indicates the proximal end side in the longitudinal direction, the arrow Xa indicates one side in the width direction, the arrow Xb indicates the other side in the width direction, the arrow Za indicates the upward direction, and the arrow Zb indicates the downward direction. shall be indicated respectively.

The assembly electric wire 1 of the present embodiment is constructed by assembling together terminal fittings (11, 21) connected to the ends of a plurality of electric wires 2 (see FIG. 3(c)). In the following, as shown in FIG. 4(b), such an assembled electric wire 1 is applied to a ground connection structure that is grounded by fastening to a predetermined ground circuit 100 in a vehicle body with a fixing bolt 3. will be explained.

As shown in FIGS. 2(a), 2(b), 3(a), and 3(b), a plurality of electric wires 2 (2a, 2b) constituting an assembly electric wire 1 are formed by bundling a plurality of conductive core wires. It is composed of a conductor portion 4 and an insulating coating portion 5 covering the entire outer periphery of the conductor portion 4, and is used as a ground wire.

The assembly electric wire 1 of this embodiment is provided with three electric wires 2 (see FIGS. 2(a), 3(a), and 3(b)), all of which are terminal portions (ends on the side connected to the ground). ) are connected to terminal fittings (11, 21).
Specifically, as shown in FIG. 2(b), two electric wires 2a out of the three electric wires 2 are connected to one combination connection terminal 11 in common at each end. As shown in FIG. 2( a ), one connection terminal 21 is connected to the end of the remaining one electric wire 2 b among the three electric wires 2 .

The combination connection terminal 11 is a known terminal metal fitting, and as shown in FIGS. 12 and, as described above, a wire connector 13 that connects to the end of the wire 2 .

As shown in the figure, the connection portion 12 has a main surface 14 and an extension portion 15 . An insertion hole 16 having an inner diameter through which the fixing bolt 3 (see FIG. 4A) can be inserted is formed through the main surface 14 of the connection portion 12 in the plate thickness direction at the center in front view. The main surface 14 of the present embodiment is formed in a flat plate shape that is larger than the size of the head of the fixing bolt 3 in plan view and has a rectangular shape in plan view.

As shown in FIG. 3A, the extending portion 15 is formed integrally with an extending surface 15a and a bent piece 15b. The extension surface 15 a is formed integrally with the main surface 14 so as to extend substantially on the same plane as the main surface 14 from the tip side edge portion in the longitudinal direction of the main surface 14 . The bent piece 15b is provided at the tip of the extending portion 15 and is formed by bending downward.

By the way, as shown in FIG. 4(a), when the connection terminal 21 is grounded (placed) on the flat peripheral edge 102 of the bolt insertion hole 101 of the ground circuit 100 on the vehicle body side, the portion facing the bent piece 15b is placed. A latched portion 103 that can be latched with the bent piece 15b is formed on the bottom.

By locking the bent piece 15 b to the locked portion 103 , the combined connection terminal 11 is restricted from rotating inadvertently around the axial direction of the insertion hole 16 in plan view.
In this embodiment, the locked portion 103 is formed by the end portion of the vehicle body frame that functions as the ground circuit 100, but is not particularly limited as long as it is configured to be locked to the bent piece 15b. , a stepped portion or the like that is lowered by one step with respect to the peripheral edge 102 of the bolt insertion hole 101 .

That is, the bent piece 15b functions as a detent of the connecting portion 12. As shown in FIG. In addition, as shown in FIG. 2(b), the extension surface 15a of the extension portion 15 has a substantially trapezoidal shape in plan view so that the width gradually decreases from the base end toward the tip in the extension direction (longitudinal direction). is formed in Moreover, the connecting portion 12 is formed in a flat plate shape over substantially the entirety thereof except for the bent piece 15b.

As shown in FIGS. 2B and 3A, the combination connection terminal 11 described above is provided with a pair of a first connection terminal piece 110 and a second connection terminal piece 111. These first connection terminal pieces Both the 110 and the second connection terminal piece 111 have conductivity by press-molding a plate material made of a metal material.

Specifically, as shown in FIG. 2B, the first connection terminal piece 110 includes a plate-like first connection piece 110a forming a part of the connection portion 12 described above and a wire connection portion 13a (first Also referred to as a wire connecting portion 13a). The second connection terminal piece 111 has a plate-like second connection piece 111a forming a part of the connection portion 12 described above and a wire connection portion 13b (also referred to as a second wire connection portion 13b). The first connection piece 110a and the second connection piece 111a are formed in a symmetrical shape (vertically inverted shape) with respect to the middle position in the width direction.

The combination connection terminal 11 is integrally constructed by combining the first connection terminal piece 110 and the second connection terminal piece 111 such that the first connection piece 110a and the second connection piece 111a are laminated.
By laminating the first connection piece 110a and the second connection piece 111a in this manner, the connection portion 12 is formed on the front end side of the combination connection terminal 11 in the longitudinal direction. In addition, the extending portion 15 is formed only by the distal end portion of the first connecting piece 110a in the longitudinal direction.

On the other hand, as shown in FIG. 2(b), a pair of wire connection portions 13 (first wire connection portions) arranged in parallel at a predetermined interval in the width direction are provided on the base end side in the longitudinal direction of the combination connection terminal 11. 13a and a second wire connection 13b).

Each of the pair of wire connection portions 13 extends substantially horizontally and linearly from the edge of the connection portion 12 on the base end side in the longitudinal direction toward the base end side in the longitudinal direction so as to match the longitudinal direction. They are arranged substantially parallel to each other at a predetermined interval.

The wire connecting portion 13 has a barrel piece 6 that can be crimped and connected (crimped) to the end of the wire 2a.
The barrel piece 6 has a so-called open barrel shape. A connected coated barrel piece 6b is provided. The conductor barrel piece 6a and the covering barrel piece 6b are arranged in series in correspondence with the end portion of the conductor portion 4 and the end portion of the insulating coating portion 5 in the longitudinal direction of the wire connecting portion 13. As shown in FIG.

In addition, as shown in FIG. 3( a ), the combination connection terminal 11 has a substantially flat lower surface over the substantially flat connecting portion 12 and the wire connecting portion 13 . On the other hand, since the wire connection portion 13 is connected to the end portion of the wire 2 a by the barrel piece 6 , the wire connection portion 13 of the combination connection terminal 11 is formed to be bulkier than the connection portion 12 .

As shown in FIGS. 1(a) to (d) and FIG. 2(a), the connection terminal 21 is provided with an assembly connection portion 22 and a wire connection portion 23, and is entirely made of a plate material made of a metal material. ing.
The assembly connection portion 22 is assembled with the connection portion 12 of the combination connection terminal 11 (see FIG. 3(c)) and has an insertion hole 24 through which the fixing bolt 3 is inserted. It is directly connected to the ground circuit 100 by the bolt 3 (see FIGS. 4(a) and 4(b)).

As shown in FIGS. 2(b) and 3(c), the assembly connection portion 22 has a box shape having an internal space 22s capable of accommodating at least the main surface 14 of the connection portion 12 of the combination connection terminal 11 therein. formed.

Specifically, in a state in which the main surface 14 of the assembly connection portion 22 of the combination connection terminal 11 is accommodated in the internal space 22s, the assembly connection portion 22 is arranged in the vertical direction (thickness direction) with respect to the main surface 14. A pair of opposed surfaces 25 (an upper opposed surface 25a and a lower opposed surface 25b) that face each other on both sides, and a vertical wall-shaped side surface 26 that connects the pair of opposed surfaces 25 in the height direction at the outer edges of the pair of opposed surfaces 25. and

In this embodiment, as shown in FIGS. 1(a) to 1(d), the assembly connection portion 22 has a length in the height direction (vertical direction) shorter than each length in the longitudinal direction and width direction. , that is, formed in a rectangular parallelepiped shape with a low height.

However, as shown in FIG. 1(b), the side surface 26 is not provided on the edge corresponding to the base end side in the longitudinal direction among the outer peripheral edges of the pair of opposing surfaces 25, and the combination connection terminal 11 An insertion opening 27 is provided through which the connecting portion 12 can be inserted into the internal space 22s. In this embodiment, the assembly connection part 22 is opened over the entire lengthwise proximal end side by the insertion opening 27 .

As shown in FIGS. 1(b), 1(c), and 2(a), the pair of opposing surfaces 25 are formed in flat plates of the same shape while facing each other in parallel in the vertical direction. In this embodiment, the pair of opposing surfaces 25 are formed in a rectangular shape (substantially square shape) having substantially the same length in the longitudinal direction and the width direction (see FIG. 1(a)).

Each of the pair of opposing surfaces 25 has an insertion hole 24 having a perfect circular shape in a plan view and through which the fixing bolt 3 can be inserted at a substantially central position in a front view. The respective insertion holes 24 of the pair of facing surfaces 25 communicate with each other in the vertical direction.

As shown in FIGS. 2(b) and 4(a), the combination connection terminal 11 is configured such that the connection portion 12 is accommodated in the inner space 22s of the box-shaped assembly connection portion 22, and the connection portion 12 is The insertion holes 16 are arranged at positions communicating with the respective insertion holes 24 of the pair of facing surfaces 25 of the assembly connection portion 22 in the vertical direction (in the direction in which the fixing bolt 3 is inserted). At this time, the connection portion 12 is fixed (positioned) with respect to the assembly connection portion 22 by a fixing portion to be described later, and is assembled with the assembly connection portion 22 .
Here, as shown in FIGS. 2(b) and 3(c), the connection portion 12 is inserted into the insertion hole 16 of the connection portion 12 and the assembly connection portion 22 in the internal space 22s of the assembly connection portion 22. The position where the hole 24 is arranged so as to communicate with it is set as the assembly position Pa.

As shown in FIG. 2(b), the side surfaces 26 include a pair of side surfaces 26a and 26b located at both end edges of the assembly connection portion 22 in the width direction, and a pair of side surfaces 26a and 26b located at the ends of the assembly connection portion 22 in the longitudinal direction. It has a tip side surface 26c located on the edge. The pair of side surfaces 26a and 26b and the tip side surface 26c are both formed in the shape of vertical walls in the vertical direction, and are connected between the pair of opposing surfaces 25. As shown in FIG.

As shown in FIGS. 1(c) and 2(b), the connecting portion 12 in the assembled state in the internal space 22s (the connecting portion 12 arranged at the assembling position Pa) is provided at the central portion in the width direction of the tip-side side surface 26c. An extension portion insertion opening 29 is provided to allow the extension portion 15 of the portion 12) to protrude outward from the internal space 22s.
As shown in FIGS. 2(b) and 3(c), when the connection portion 12 is assembled, the extension portion 15 is inserted into the extension portion insertion opening 29 as viewed from the internal space 22s. .

Then, as shown in FIG. 2B, the extension 15 of the connection portion 12 protrudes from the extension insertion opening 29 to the outside of the internal space 22s, and extends in the width direction of the extension insertion opening 29. Edges in the width direction opposite to the ends 29a are engaged with the ends 29a. As a result, the connecting portion 12 is positioned such that the extending portion 15 faces the tip in the longitudinal direction at the assembly position Pa of the internal space 22s.
That is, the connecting portion 12 is restricted by the widthwise end portions 29a of the extending portion insertion opening 29 so as to prevent rotation.

Further, as shown in FIGS. 1(b), 1(c) and 1(d), the pair of lateral side surfaces 26 (26a, 26b) are provided with fixing bolts 3 inserted through insertion holes 16, 24 as will be described later. When the box-shaped assembly connection portion 22 is assembled with the connection portion 12 and fastened to the ground circuit 100 (see FIGS. 4A and 4B), the pair of opposing surfaces 25 are aligned in the direction in which they approach each other. A deformation promoting portion 35 is provided to promote deformation of the side surfaces 26a and 26b.
The deformation promoting portion 35 is a groove formed concavely in the plate thickness direction (width direction) along the longitudinal direction at an intermediate portion in the height direction between the outer surface and the inner surface of the side surfaces 26a and 26b.

Part of the lateral side surfaces 26a and 26b becomes thin and weakened by the deformation promoting portion 35, and the deformation promoting portion 35 becomes a starting point of bending deformation of the lateral side surfaces 26a and 26b, resulting in the lateral side surface 26a. , 26b is accelerated.

However, the deformation promoting portion 35 may be formed on at least one of the outer and inner surfaces of the side surfaces 26a and 26b. There is no particular limitation as long as it is a structure that promotes deformation, such as a hole (non-through hole) formed in a concave shape in a direction or a through hole. Furthermore, the deformation promoting portion 35 is formed on the pair of lateral side surfaces 26a and 26b in the present embodiment as described above. It is good also as the structure formed in the side surface 26 of at least any one.

As shown in FIGS. 1(a) and 1(d), the wire connection portion 23 of the connection terminal 21 is formed into a three-dimensional shape by press molding a plate material or the like. As the barrel-shaped barrel piece 7, a conductor barrel piece 7a and a coated barrel piece 7b are provided. The conductor barrel piece 7a and the covering barrel piece 7b are arranged in series from the distal end side to the proximal end side at a portion of the wire connecting portion 13 excluding the distal end portion in the longitudinal direction.

The wire connection portion 23 of the connection terminal 21 of the present embodiment is provided at an intermediate position in the width direction of the edge of the base end side in the longitudinal direction of the upper facing surface 25 a of the box-shaped assembly connection portion 22 of the connection terminal 21 . ing.

The wire connection portion 23 extends linearly and horizontally from the assembly connection portion 22 toward the base end side in the longitudinal direction in a cantilevered manner so that the distal end portion thereof in the longitudinal direction is located at the intermediate position of the upper facing surface 25a. It is affixed in a state in which conductivity is ensured.
As a result, the wire connection portion 23 of the connection terminal 21 does not interfere with the insertion opening 27 when viewed from the proximal end side in the longitudinal direction (when viewed from the insertion direction), as shown in FIG. 1(b). .

As shown in FIGS. 1(b) and 1(c) and FIGS. 2(a) and 2(b), the assembly connection portion 22 includes the slide guide portion and the slid connection portion 12 at the assembly position Pa. A fixing portion for positioning and fixing to the portion 22 is provided.

The slide guide portion in the present embodiment is composed of the pair of lateral side surfaces 26a and 26b described above.
That is, when the connection portion 12 of the combination connection terminal 11 is inserted from the insertion opening 27 into the internal space 22s of the assembly connection portion 22 or in the state of being inserted, the connection portion 12 is appropriately It is guided to the assembly position Pa in the internal space 22s while contacting and sliding toward the distal end side in the longitudinal direction.

The fixing portion in the present embodiment is composed of a rotation-preventing restricting portion and a retaining restricting portion.
The anti-rotation restricting portion is formed by both widthwise end portions 29a, 29a of the extending portion insertion opening 29 of the tip end side surface 26c of the assembly connection portion 22 (see FIGS. 1(c) and 2(b)). ).

As shown in FIGS. 1(b) and 1(c) and FIGS. 2(a) and 2(b), the retaining regulating portion is provided in the interior space 22s so as to be capable of being locked so that the connecting portion 12 in the assembled state does not come off from the interior space 22s. 22s is formed of a pair of protruding pieces 28 that protrude in opposite directions in the vertical direction of 22s.

In the present embodiment, of the pair of projecting pieces 28, the upper projecting piece 28 extends downward (internal space 22s) from the lower surface (inner surface) of the middle position in the width direction of the edge on the base end side in the longitudinal direction of the upper facing surface 25a. , and the lower protruding piece 28 extends upward (internal space 22s) from the upper surface (inner surface) at the intermediate position in the width direction of the edge on the base end side in the longitudinal direction of the lower opposing surface 25b. It is formed to protrude toward.
That is, the pair of projecting pieces 28 are formed toward the extension portion insertion opening 29 at intermediate positions in the width direction of the upper and lower edges of the extension portion insertion opening 29 .

As shown in FIG. 2(a), the pair of protruding pieces 28 in this embodiment are both formed with a protruding length that is close to each other in the internal space 22s, and extend in the longitudinal direction toward the tip in the protruding direction. It is formed in a projecting shape that gradually becomes thinner.

Further, as shown in the figure, the pair of protruding pieces 28 has both sides in the longitudinal direction extending in the vertical direction. While it is formed of a vertical vertical surface, the surface 28b on the proximal end side in the longitudinal direction is formed by an inclined surface that slopes toward the side closer to the surface 28a on the distal end side in the longitudinal direction toward the tip in the projecting direction. .

As a result, as shown in FIG. 3B, each of the pair of protruding pieces 28 is formed in a projecting shape that is easily flexurally deformed toward the distal end side in the longitudinal direction, but is difficult to be flexurally deformed toward the proximal end side in the longitudinal direction. and allows the connecting portion 12 to slide only to the distal end side in the longitudinal direction.

On the other hand, as shown in FIGS. 2(b) and 3(c), the pair of protruding pieces 28 restores the shape before bending deformation when the connection portion 12 of the combined connection terminal 11 is assembled.
Specifically, the pair of wire connection portions 13 of the combination connection terminal 11 extends in a bifurcated shape from the connection portion 12 toward the base end side in the longitudinal direction (see FIG. 2(b)). Therefore, when the connection portion 12 of the combination connection terminal 11 is in the assembled state, the pair of protruding pieces 28 are the root portions of the pair of wire connection portions 13 and are located between the pair of wire connection portions 13 in the width direction. It is positioned at a position pm (hereafter referred to as a “root portion intermediate position pm”) (see FIG. 2(b)).

For this reason, the pair of projecting pieces 28 is in a state in which an external force caused by contact with the combination connection terminal 11 is not applied when the connection portion 12 of the combination connection terminal 11 is assembled. ), the shape is restored to the shape before bending deformation.

If the combination connection terminal 11 were to slide carelessly from the assembly position Pa to the longitudinal base end, at least one of the pair of protruding pieces 28 would slide toward the longitudinal base end of the connection portion 12 . abut. As a result, the pair of protruding pieces 28 restricts the connecting portion 12 from sliding in the direction of exiting the internal space 22s (that is, toward the proximal end in the longitudinal direction from the assembly position Pa).

In the present embodiment, the pair of protruding pieces 28 are integrally formed as a part of the assembly connection portion 22. However, if elastic deformation (flexural deformation) is possible only on the tip side in the longitudinal direction, for example, The material, shape, etc. are not particularly limited, for example, it may be formed of a member separate from the assembly connection portion 22 and attached to the assembly connection portion 22 afterward.

Next, an example of a procedure for connecting one connection terminal 21 and one combination connection terminal 11 to each other and fastening them to the ground circuit 100 in the vehicle body with the fixing bolts 3 will be described.
However, it is assumed that the combination connection terminal 11 and the connection terminal 21 are both connected to the ends of the corresponding electric wires 2a and 2b.

First, as shown in FIG. 3A, the connection portion 12 of the combination connection terminal 11 is inserted into the internal space 22s of the box-shaped assembly connection portion 22 of the connection terminal 21 through the insertion opening 27 .
Here, it is assumed that the combination connection terminal 11 is inserted into the internal space 22s with the barrel piece 6 of the wire connection portion 13 facing upward.

At this time, the connecting portion 12 of the combination connection terminal 11 abuts at least one of the pair of protruding pieces 28 from the longitudinal base end side (outside of the internal space 22s) at its longitudinal distal end.
As a result, as shown in FIG. 3B, the projecting piece 28 with which the connecting portion 12 abuts is flexurally deformed so as to fall down toward the distal end side in the longitudinal direction, and the connecting portion 12 moves out of the insertion opening 27 into the internal space 22s. allow it to be inserted into Further, the connection portion 12 is slidably guided to the assembly position Pa in the internal space 22s by the pair of side surfaces 26a and 26b.

Then, as shown in FIG. 3(c), the connecting portion 12 is arranged at the assembly position Pa, and the anti-rotation restricting portion (both end portions 29a in the width direction of the extension portion insertion opening 29) serving as a fixing portion. ) and the retaining restricting portion (the pair of protruding pieces 28) to be fixed (positioned) and assembled to the assembly connecting portion 22. As shown in FIG. At this time, the insertion hole 16 of the connection portion 12 and the insertion hole 24 of the assembly connection portion 22 are vertically communicated with each other.

Further, as shown in FIG. 4A, the connection terminal 21 assembled with the combination connection terminal 11 is in surface contact with the flat peripheral edge 102 of the bolt insertion hole 101 of the ground circuit 100 at the lower facing surface 25b. It is grounded with

At this time, the insertion hole 24 of the assembly connection portion 22 (the pair of facing surfaces 25a and 25b) of the connection terminal 21, the insertion hole 16 of the connection portion 12 of the combination connection terminal 11, and the bolt insertion hole 101 of the ground circuit 100 are aligned vertically. It will be in a state of communication in the direction.

On the other hand, a nut 9 is fixed to the peripheral edge 102 of the bolt insertion hole 101 of the ground circuit 100 (vehicle frame) on the side opposite to the side where the lower facing surface 25b is grounded. Therefore, the fixing bolt 3 and the nut 9 are used to fasten to the ground circuit 100 while the fixing bolt 3 is inserted through the insertion holes 16 and 24 of the connecting portion 12 and the assembly connecting portion 22 .

At this time, since the assembly connection portion 22 is compressed between the ground circuit 100 and the head portion of the fixing bolt 3, the deformation promoting portion 35 promotes the deformation of the pair of side surfaces 26a and 26b. As shown in (b), the main surface 14 of the connecting portion 12 can be fastened in a state of being in close contact with each of the pair of opposing surfaces 25a and 25b.

As a result, the connection portion 12 and the assembly connection portion 22 assembled together can be attached to the ground circuit 100 in a conducting state.
Specifically, the lower facing surface 25b of the assembly connection portion 22 directly contacts the ground circuit 100 (periphery of the bolt insertion hole 101 in the vehicle body frame), and the connecting portion 12 contacts the lower facing surface 25b. are indirectly connected to the ground circuit 100 via the . As a result, both the connection terminal 21 and the combination connection terminal 11 can be electrically grounded to the ground circuit 100 .

The pair of facing surfaces 25 have the function of guiding the connecting portion 12 that slides to the assembly position Pa in the vertical direction, and are fixed ( positioning). For this reason, the pair of facing surfaces 25 may be regarded as part of the slide guide portion or fixed portion. Moreover, if the pair of side surfaces 26a and 26b also has a function of fixing (positioning) the connecting portion 12 so that it does not accidentally slide vertically in the assembled state, the side surfaces 26a and 26b can be slid. You may consider not only a guide part but a fixing|fixed part. Furthermore, the distal end side surface 26c may also be appropriately regarded as a slide guide portion or a fixing portion depending on whether it has a slide guide function or a fixing function of the connection portion 12, as described above.

As shown in FIGS. 1(a) to 1(d) and FIGS. 2(a) and 2(b), the connection terminal 21 of the present embodiment includes a wire connecting portion 23 for connecting the wire 2 and a fixing bolt 3 through which the wire connection portion 23 is connected. The combination connection terminal 11 as another connection terminal is provided with a connection portion 12 having an insertion hole 16 and an assembly connection portion 22 to be assembled. A pair of side side surfaces 26a and 26b as slide guide portions for guiding the slide of the slide connecting portion 12 is fixed to the assembling connecting portion 22 at a position (assembling position Pa) where the insertion holes 16 and 24 communicate with each other. Both ends 29a in the width direction of the extending portion insertion opening 29 and a pair of projecting pieces 28 are provided as fixing portions.

According to the above configuration, the connection portion 12 can be slidably guided by the slide guide portions (26a, 26b) to the position where the insertion holes 16, 24 communicate with each other. Furthermore, the connecting portion 12 can be fixed by the fixing portions (28, 29a) at the positions where the insertion holes 16, 24 communicate with each other.
Thus, according to the above configuration, the connection portion 12 can be fixed to the assembly connection portion 22 so that the insertion holes 16 and 24 communicate with each other.

Therefore, the fixing bolts 3 can be easily inserted into the insertion holes 16 and 24 of the connection portion 12 and the assembly connection portion 22, and the connection portion 12 and the assembly connection portion 22 are connected by tightening the fixing bolts 3. can be assembled while ensuring mutual continuity.

For example, when both the connection portion 12 and the assembly connection portion 22 are grounded to the ground circuit 100 as in the present embodiment, the insertion holes 16 and 16 that communicate the connection portion 12 and the assembly connection portion 22 with each other are used. The fixing bolt 3 or the like inserted through the 24 can be tightened together with the grounding circuit 100 in the vehicle body, so that it can be reliably and easily grounded.

1(a), 1(d), and 3(c), the wire connection portion 23 is connected to the combination connection terminal 11 when the connection portion 12 and the assembly connection portion 22 are assembled. An electric wire 2b extending in the same direction as the electric wire 2a is connected.

According to the above configuration, when the connection portion 12 and the assembly connection portion 22 are assembled, the wire 2b connected to the wire connection portion 23 (connection terminal 21) and the wire 2a connected to the combination connection terminal 11 are connected. are arranged in the same direction, the insertion holes 16 and 24 of the combination connection terminal 11 and the connection terminal 21 can be in communication with each other, and the fixing bolt 3 can be easily inserted through these insertion holes 16 and 24. be able to.

2(b) and 3(c), the assembly connecting portion 22 has a facing surface 25 facing the main surface 14 having the insertion hole 16 in the connecting portion 12. 25 has an insertion hole 24 .

According to the above configuration, when the connection portion 12 and the assembly connection portion 22 are fastened with the fixing bolts 3 inserted through the respective insertion holes 16 and 24, the connection portion 12 and the assembly connection portion 22 are connected to the main surface 14 as shown in FIG. 4(b). Since the facing surfaces 25 can be brought into close contact with each other while being in surface contact with each other, it is possible to stably ensure electrical conductivity between the connection portion 12 and the assembly connection portion 22 .

Further, according to the above configuration, when the connection portion 12 is slidably guided with respect to the assembly connection portion 22, the main surface 14 is stabilized with respect to the lower facing surface 25b in surface contact with the main surface 14. Since it is possible to slide it by pressing it, it can be guided easily and accurately.

Further, as shown in FIGS. 1(b), 1(c) and 2(b), the assembly connection portion 22 is provided with side surfaces 26a and 26b standing from the sides of the facing surface 25. As shown in FIGS.
According to the above configuration, the side surfaces 26a and 26b can function as slide guides when the connection portion 12 is slid onto the assembly connection portion 22 for assembly.
Further, according to the above configuration, when the fixing bolt 3 is tightened, the side surfaces 26a and 26b can restrict the connection portion 12 from being accidentally rotated with respect to the assembly connection portion 22 from the side.

1(a) to (d) and FIGS. 2(a) and 2(b), the opposing surfaces 25 have a pair of opposed surfaces on both sides of the main surface 14 in the thickness direction (vertical direction). The side surfaces 26a and 26b laterally connect the pair of opposing surfaces 25, and the assembly connecting portion 22 inserts the connecting portion 12 into the internal space 22s (inside) between the pair of opposing surfaces 25. It is box-shaped with a possible insertion opening 27 .
Further, as shown in FIGS. 1(b), 1(c) and 1(d), the side surfaces 26a and 26b are brought into close proximity with each other by fastening the fixing bolts 3 inserted through the insertion holes 24. A deformation promoting portion 35 is provided for promoting deformation of the side surfaces 26a and 26b in a direction in which the connection portion 12 is sandwiched between them.

According to the above configuration, the connection portion 12 is inserted into the inner space 22s of the box-shaped assembly connection portion 22 through the insertion opening 27, so that the connection portion 12 can be easily arranged between the pair of facing surfaces 25. can be done.

Furthermore, according to the above configuration, the deformation promoting portion 35 can easily deform the side surface 26 in the direction in which the pair of opposing surfaces 25 approach each other when the fixing bolt 3 is tightened. As a result, as shown in FIG. 4(b), the pair of opposing surfaces 25 and the connection portion 12 disposed therebetween can be maintained in a state of being in surface contact with each other and firmly electrically connected. can be done.

As shown in FIGS. 2B and 3C, the fixing portion includes a pair of protruding pieces 28 (restricting portions) that restrict movement of the connecting portion 12 inserted from the insertion opening 27 in the extraction direction. ).
According to the above configuration, the movement of the connection portion 12 inserted into the assembly connection portion 22 can be restricted by the pair of protruding pieces 28 so that the connection portion 12 does not inadvertently slip out of the insertion opening 27 . can. Therefore, the pair of protruding pieces 28 can keep the connection portion 12 inserted inside the assembly connection portion 22 .

As shown in FIGS. 1A and 1B, the wire connecting portion 23 is provided on the upper facing surface 25a and extends from the direction of insertion of the connecting portion 12 into the insertion opening 27 (base end side in the longitudinal direction). It is arranged at a position not overlapping the insertion opening 27 when viewed.
According to the above configuration, when the connection portion 12 is inserted into the internal space 22s of the assembly connection portion 22 through the insertion opening 27 while the wire connection portion 23 is provided on the upper facing surface 25a, the connection portion 12 is inserted into the wire connection portion 23. It can be inserted smoothly without interference.

Furthermore, according to the above configuration, the wire connection portion 23 is provided on the upper facing surface 25a, so that the wire connection portion 13 of the combination connection terminal 11 can be arranged in a vertically stacked direction (Fig. 3(c)).
In addition, the wire connection portion 23 extends from the center of the upper edge of the insertion opening 27 of the upper facing surface 25a toward the base end side in the longitudinal direction, so that the wire 2b connected to the wire connection portion 23 and the combination connection terminal 11 can be coaxially arranged.

Further, as shown in FIGS. 5A, 5B, and 5C, as a connection terminal 21' attached to the connection terminal 21 of the above-described embodiment, the wire connection portion 23 has the upper facing surface as described above. 25a, but is provided on one of the side surfaces 26a and 26b on both sides in the width direction (here, the side surface 26a on one side in the width direction). . However, even in this case, the wire connection portion 23 is arranged at a position not overlapping the insertion opening 27A when viewed from the insertion direction of the connection portion 12 into the insertion opening 27A.

According to the above configuration, when the connecting portion 12 is inserted into the internal space 22s of the assembly connecting portion 22 through the insertion opening 27 while the wire connecting portion 23 is provided on one side surface 26a, the connecting portion 12 is inserted into the wire connecting portion. It can be smoothly inserted without interfering with 23.

Furthermore, according to the above configuration, the wire connection portion 23 can be arranged adjacent to the wire connection portion 13 of the combination connection terminal 11 in the width direction by being provided on one side surface 26a. Therefore, in a state where the connection portion 12 and the assembly connection portion 22 are fastened with the fixing bolt 3, the connection terminal 21 and the combination connection terminal 11 can be arranged compactly.

Next, an assembly electric wire according to a modified example of the present invention will be described.
However, the same code|symbol is attached|subjected about the same form as embodiment mentioned above, and the description is abbreviate|omitted.

(Modification 1)
Unlike the combination connection terminal 11 of the above-described embodiment, the combination connection terminal 11A in the assembly electric wire 1A (see FIG. 7(c)) of Modification 1 has a connection portion 12A as shown in FIG. 7(a). The connecting portion 12A is substantially entirely formed of a flat circular main surface 14A in a plan view.

Moreover, as shown in FIGS. 6(a), 6(b) and 6(c), a pair of facing surfaces 25A (25Aa, 25Ab ) are formed to have the same size as each other, and are formed in the same size as the connection portion 12A of the combination connection terminal 11A in plan view. The side surface 26A is formed only on a part of the pair of opposing surfaces 25A in the circumferential direction (one side in the width direction in this example). The wire connecting portion 23 has its longitudinal tip joined to the longitudinal base end side of the side surface 26A. Thus, the wire connection portion 23 extends from the side surface 26A toward the proximal end side in the longitudinal direction.

A first locking claw 31 is formed at a portion on the other side in the width direction of the lower facing surface 25Ab of the assembly connection portion 22A and on the distal end side in the longitudinal direction. As shown in FIG. 6(e), the first locking claw 31 is formed integrally with a base portion 31a protruding radially outward and a tip portion 31b protruding upward from the tip of the base portion.

A tip portion 31b of the first locking claw 31 is formed to protrude upward from an intermediate position in the vertical direction of the internal space 22s. As a result, the distance La (see FIG. 6E) between the tip (upper end) of the tip 31b of the first locking claw 31 and the lower surface of the upper facing surface 25Aa in the internal space 22s is the connection portion of the combination connection terminal 11A. It is set narrower than the vertical thickness of 12A.

On the other hand, as shown in FIG. 6A, a second locking claw 32 is formed on the other side in the width direction of the lower facing surface 25Ab of the assembly connection portion 22A and on the base end side in the longitudinal direction. ing. As shown in FIG. 6B, the second locking claw 32 is integrally formed with a base portion 32a and a tip portion 32b, like the first locking claw 31. As shown in FIG.

A tip portion 32b of the second locking claw 32 protrudes upward to an intermediate position in the vertical direction of the internal space 22s. As a result, the distance Lb (see FIG. 6E) between the tip (upper end) of the tip 32b of the second locking claw 32 and the lower surface of the upper facing surface 25Aa in the internal space 22s is the connection portion of the combination connection terminal 11A. It is set wider than the vertical thickness of 12A. That is, the tip portion 32b of the second locking claw 32 is formed to have a shorter projecting length than the tip portion 31b of the first locking claw 31 .

As shown in FIGS. 6B and 6E, the insertion opening 27A corresponds to the vertical gap between the outer peripheral edges of the pair of facing surfaces 25A of the assembly connection portion 22A. Furthermore, as shown in FIG. 6A, the insertion opening 27A is provided with a second locking claw 32 between the side surface 26A and the first locking claw 31 in the circumferential direction of the assembly connection portion 22A. corresponds to the gap on the side. 27 A of insertion openings are formed in the magnitude|size which can insert the connection part 12A of 11 A of combination connection terminals to 22 s of internal spaces.

Next, an example of the procedure for assembling the connection terminal 21A and the combined connection terminal 11A will be described.
As shown in FIG. 7(a), the operator slides the connecting terminal 21A in a straight line toward the base end side in the longitudinal direction (see the thick arrow in FIG. 7(a)) so that the assembly connection portion 22A is removed. The connection portion 12A of the combination connection terminal 11A is inserted into the internal space 22s from the insertion opening 27A.
In addition, as described above, the connection terminal 21A is not limited to being slid to the proximal end side in the longitudinal direction, and the combined connection terminal 11A may be slid to the distal end side in the longitudinal direction.

In Modification 1, a second locking claw 32 projects toward the insertion opening 27A (upward) at a portion corresponding to the lower edge of the insertion opening 27A (see FIG. 6B). The second locking claw 32 is set at a low height as described above. For this reason, the operator moves the connection portion 12A of the combination connection terminal 11A over the second locking claw 32 from between the second locking claw 32 and the upper edge of the insertion opening 27A in the insertion opening 27A. It is inserted horizontally into the internal space 22s. Thereby, the connecting portion 12A can be inserted into the internal space 22s without interfering with the second locking claw 32. As shown in FIG.

As shown in FIG. 7(b), the connection portion 12A of the combination connection terminal 11A is inserted into the internal space 22s until it abuts against the side surface 26A and the inner surfaces of the first locking claw 31. Sliding to the side is restricted. Such a position of the connection portion 12A with respect to the assembly connection portion 22A is set as the straight travel restriction position Pb. Then, when the assembly connection portion 22A is positioned at the straight movement restricting position Pb, the connection portion 12A and the assembly connection portion 22A can be in a state in which the insertion holes 16 and 24 communicate with each other. In addition, when the assembly connection portion 22A is positioned at the rectilinear restriction position Pb, the second locking claw 32 is positioned at the base portion intermediate position pm of the assembly connection terminal 11A (see FIG. 7B).

Further, the worker rotates the connection portion 12A counterclockwise from the straight movement restriction position Pb with respect to the assembly connection portion 22A in plan view (see the thick arrow in FIG. 7B).
However, the assembly connection portion 22A rotates counterclockwise in a plan view by engaging the second locking claw 32 positioned at the base intermediate position pm with the second wire connection portion 13b of the combination connection terminal 11A. Rotation is restricted.

Therefore, the operator moves the combined connection terminal 11A placed on the lower facing surface 25Ab in the internal space 22s upwards from the tip 32b of the second locking claw 32 formed to be low and substantially horizontally. float in a relaxed posture. Thereby, the engagement of the second wire connection portion 13b by the second locking claw 32 can be released. Then, in this state, the operator rotates the connection terminal 21A counterclockwise in a plan view with respect to the combination connection terminal 11A about the center of the insertion hole 24 as the center of rotation.

As a result, the operator does not allow the second locking claw 32 to interfere with the second wire connection portion 13b of the combination connection terminal 11A, so that the connection terminal 21A (assembled) can straddle the second wire connection portion 13b in the circumferential direction. The connection portion 22A) can be rotated with respect to the combination connection terminal 11A.

At this time, the first locking claw 31 and the side surface 26A guide the counterclockwise rotation of the assembly connection portion 22A while their inner surfaces are locked to the peripheral edge of the circular connection portion 12A. )do.

As shown in FIG. 7(c), the wire connection portion 23 of the connection terminal 21A eventually comes into contact with the first wire connection portion 13a of the assembly connection portion 22A from one side in the width direction. counterclockwise rotation is regulated. At this time, the first locking claw 31 and the side surface 26A fix (position) the assembly connecting portion 22A to the connecting portion 12A in a state of being locked to the peripheral edge of the circular connecting portion 12A.

Further, as shown in FIG. 7(c), the second locking claw 32 is positioned at a position pn near the edge on the other side in the width direction of the root portion of the second wire connection portion 13b. The root portion of the connecting portion 13b is locked from the other side in the width direction. As a result, the pair of wire connection portions 13 of the combination connection terminal 11A are sandwiched from both sides in the width direction by the second locking claws 32 as fixing portions and the wire connection portions 23 as fixing assistance portions of the connection terminal 21A. fixed (positioned) to
That is, the connection portion 12A of the combination connection terminal 11A and the assembly connection portion 22A of the connection terminal 21A are assembled to each other at the assembly position Pa.

The procedure for attaching the assembly connection portion 22A and the connection portion 12A assembled to each other to the ground circuit 100 using the fixing bolts 3 is the same as in the above-described embodiment, and thus the description thereof will be omitted.

As shown in FIGS. 6A, 6B, 6C, and 6D, the slide guide portion of Modification 1 is such that the assembly connection portion 22A is slidable in the circumferential direction with respect to the connection portion 12A. The locking portion that locks to the outer peripheral edge, specifically, the first locking claw 31 and the side surface 26A.

According to the above configuration, the engaging portions (26A, 31) guide the assembly connecting portion 22A in the circumferential direction with respect to the connecting portion 12A while engaging with the outer peripheral edge of the connecting portion 12A. 24 can be guided until a desired posture is maintained while maintaining a state in which they are not easily dislocated and communicated with each other.
Therefore, the assembly connecting portion 22A and the connecting portion 12A can be easily assembled in a desired posture.

(Modification 2)
The connection terminal 21B (assembly connection portion 22B) in the assembly electric wire 1B (see FIG. 9(b)) of Modification 2 is different from the connection terminal 21A of Modification 1, as shown in FIG. 8(b). As for the facing surface, the lower facing surface 25Ab (see FIG. 6B) is not provided, and only the upper facing surface 25Ba having a substantially circular shape in plan view is provided.
Note that the combination connection terminal 11A is formed in the same form as the combination connection terminal 11A of Modification 1 (see FIG. 9A).

As shown in FIGS. 8(b), 8(c) and 8(d), the assembly connection portion 22B of Modification 2 includes a first locking claw 41, a second locking claw 42 and a side surface 26B.
The side surface 26B is provided at one side edge in the width direction of the upper facing surface 25Ba, and the longitudinal tip portion of the wire connecting portion 23 is integrally connected to the longitudinal base end portion of the side surface 26B. . As a result, the wire connecting portion 23 extends linearly from the side surface 26B toward the distal end side in the longitudinal direction in a direction coinciding with the longitudinal direction.

The first locking claw 41 is disposed on the other side in the width direction and the leading end side in the longitudinal direction of the peripheral edge of the assembly connection portion 22B, and the second locking claw 42 is disposed on the other side in the width direction and on the distal end side in the longitudinal direction. It is arranged on the proximal end side.

As shown in FIG. 8(e), the first locking claw 41 includes a radially outer extending portion 41a extending radially outward from a corresponding portion on the peripheral edge of the upper facing surface 25Ba, and the radially outer extending portion 41a. A standing portion 41b standing downward from the radially outer end of the portion 41a and a support portion 41c extending radially inward from the lower end of the standing portion 41b and supporting the connection portion 12A of the combination connection terminal 11A are integrally formed. formed.

As shown in FIGS. 8(f) and 8(g), the second locking claw 42 and the side surface 26B both extend radially outward from corresponding portions on the peripheral edge of the upper facing surface 25Ba. portions 42a and 26Ba, standing portions 42b and 26Bb standing downward from the radial outer ends of the radially outer extending portions 42a and 26Ba, and extending radially inward from the lower ends of the standing portions 42b and 26Bb. support portions 42c and 26Bc that support the connection portion 12A of the connection terminal 11A; 26Bd and integrally formed.

The erected portions 41b and 26Bb of the first locking claw 41 and the side surface 26B are positioned so that their inner surfaces can come into contact with the outer peripheral edge of the connecting portion 12A when the connecting portion 22B and the connecting portion 12A are assembled. provided (see FIG. 9(b)).

As shown in FIGS. 8(e), (f), and (g), the first locking claw 41, the second locking claw 42, and the support portions 41c, 42c, and 26Bc of the side surface 26B are connected to the assembly connection portion 22B. When the connecting portion 12A is assembled, the connecting portion 12A is provided at a position capable of supporting the connecting portion 12A from below. formed by

As shown in FIGS. 8(f) and 8(g), the stepped portions 42d and 26Bd of the second locking claw 42 and the side surface 26B extend substantially horizontally radially inward from the lower ends of the standing portions 42b and 26Bb. It is formed by stepped support portions 42e and 26Be and vertical wall portions 42f and 26Bf that vertically connect the radial inner end of the stepped support portion 42e and the radial outer end of the support portions 42c and 26Bc.

The stepped support portions 42e and 26Be are provided at a height corresponding to an intermediate position in the vertical direction of the space 22Bs directly below. However, the distance between the stepped support portions 42e and 26Be and the lower surface of the upper facing surface 25Ba in the space 22Bs directly below is set wider than the vertical thickness of the connection portion 12A of the combination connection terminal 11A.

In addition, the assembly connection portion 22B in Modification 2 is directly below the upper facing surface 25Ba and above the upper surfaces of the support portions 41c, 42c, and 26Bc of the first locking claw 41, the second locking claw 42, and the side surface 26B. The upper space is set as the directly below space 22Bs.

As shown in FIGS. 8(a) and 8(b), the insertion opening 27B is formed between the erected portions 42b and 26Bb of the second locking claw 42 and the side surface 26B at the periphery of the directly-lower space 22Bs in the directly-lower space 22Bs. This is the opening on the side where the first locking claw 41 is not provided. The insertion opening 27B is formed with a size that allows the connection portion 12A of the combination connection terminal 11A to be inserted into the space 22Bs directly below.

Next, an example of the procedure for assembling the connection terminal 21B and the combination connection terminal 11A will be described.
As shown in FIG. 9(a), the worker moves the connection terminal 21B straight toward the combination connection terminal 11A (see the thick arrow in FIG. 9(a)), and moves the assembly connection portion of the connection terminal 21B. The connection portion 12A of the combination connection terminal 11A is inserted into the space 22Bs directly below from the insertion opening 27B provided in 22B.

At this time, in Modification 2, as shown in FIGS. 8(f) and 8(g), stepped portions 42d and 42d are provided on both sides of the insertion opening 27B in the width direction on the second locking claw 42 and the side surface 26B, respectively. 26Bd (stepped support portions 42e and 26Be) protrude toward the insertion opening 27B (upward) with respect to the support portions 42c and 26Bc.

For this reason, the operator steps the connection portion 12A of the combination connection terminal 11A from between the stepped support portions 42e and 26Be of the second locking claw 42 and the side surface 26B and the upper edge of the insertion opening 27B. It is inserted into the directly below space 22Bs in a substantially horizontal posture so as to get over the support portions 42e and 26Be. Thereby, the connecting portion 12A can be inserted into the space 22Bs immediately below without interfering with the stepped portions 42d and 26Bd.

At this time, the second locking claw 42 and the side surface 26B support the connecting portion 12A with the stepped support portions 42e and 26Be, and the inner surfaces of the standing portions 42b and 26Bb of the connecting portion 12A have a perfect circular shape. By engaging with the outer peripheral edge of the connecting portion 22B, it guides the assembly connection portion 22B to move straight toward the distal end side in the longitudinal direction, that is, to be inserted into the directly-lower space 22Bs.

As shown in FIG. 9(b), the peripheral edge of the connecting portion 12A eventually comes into contact with the inner surface of the standing portion 41b of the first locking claw 41 of the assembly connecting portion 22B. Straight movement to the tip side in the longitudinal direction is restricted.

At this time, the connection portion 12A and the assembly connection portion 22B are in a state in which the insertion holes 16 and 24 communicate with each other, and are in a mutually assembled state (positioned at the assembly position Pa).

When the connecting portion 12A is inserted into the space 22Bs directly below, as described above, the connecting portion 12A is supported by the stepped support portions 42e and 26Be of the second locking claw 42 and the side surface 26B, but does not reach the assembly position Pa. At this time, the support by these stepped support portions 42e and 26Be is released.

In the assembled state, the connection portion 12A is supported from below by the first locking claw 41, the second locking claw 42, and the supporting portions 41c, 42c, and 26Bc of the side surface 26B.

Furthermore, in the assembled state, the connection portion 12A includes the inner surface of the upright portion 41b of the first locking claw 41, the inner surface of the vertical wall portion 42f (stepped portion 42d) of the second locking claw 42, and the upright side surface 26B. The inner surfaces of the portion 26Bb and the vertical wall portion 26Bf (stepped portion 26Bd) are engaged with the peripheral edges and fixed (positioned) by these.

As noted above, the present invention is not limited to only the configurations of the examples described above and can be formed in various embodiments.
The assembly electric wire of the present invention is not limited to inserting the connection portion 12 of one assembly connection terminal 11 into the inner space 22s of the box-shaped assembly connection portion 22 as in the above-described embodiment (FIG. 3 (c)), the connection portions 12 of the plurality of combination connection terminals 11 may be inserted into the internal space 22s.

In this case, the plurality of combination connection terminals 11 may be configured such that the principal surfaces 14 are aligned in the same direction, as shown in FIG. 10(a), for example.
According to the above configuration, the main surface 14 of one of the plurality of combination connection terminals 11 (the lowest combination connection terminal 11 in FIG. 10A) is can be brought into surface contact with the facing surface 25 (here, the lower facing surface 25b) facing the .
As a result, excellent electrical conductivity between the main surface 14 and the opposing surface 25 can be ensured when the fixing bolt 3 is tightened.

Alternatively, for example, as shown in FIG. 10(b), the plurality of combination connection terminals 11 may be combined so that the main surfaces 14 are in opposite directions.

According to the above configuration, since the main surfaces 14 can be brought into contact with each other in a surface contact state, excellent conductivity between the main surfaces 14 can be ensured when the fixing bolt 3 is fastened.

The number of connecting portions 12 of the combination connecting terminal 11 to be inserted into the internal space 22s of the box-shaped assembly connecting portion 22 is not limited to one or two, and may be three depending on the size of the internal space 22s. You may insert more than one.

Further, for example, the connection terminal of the present invention is explained based on the structure of the connection terminal 21 of the above-described embodiment. As shown in FIG. A configuration in which a bolt holding member 40 is provided as bolt holding means for holding the fixing bolt 3 while permitting its rotation around the axis may be employed.

Specifically, the facing surface 25 is provided with a concave portion 24a formed by enlarging the peripheral edge of the insertion hole 24 and recessing it like a counterbore. An annular bolt holding member 40 is fitted coaxially with the insertion hole 24 in the recess 24a.

On the inner peripheral surface of the bolt holding member 40, convex portions 46 protruding radially inward and concave portions 47 concave radially outward are alternately arranged over the entire circumference.
Although FIG. 11A is a plan view of the periphery of the insertion hole 24 of the upper facing surface 25a, the periphery of the insertion hole 24 of the lower facing surface 25b also corresponds to the periphery of the insertion hole 24 of the upper facing surface 25a. Since the configuration is the same as that of FIG. 10(a), reference numeral 3a indicated by a phantom line indicates the outer peripheral surface of the fixing bolt 3. As shown in FIG.

As shown in FIG. 11( a ), the convex portion 46 abuts on the outer peripheral surface 3 a of the fixing bolt 3 inserted through the insertion hole 16 at its radially inward tip portion, while the concave portion 47 contacts the insertion hole 16 . It is disposed at a position retracted radially outward from the outer peripheral surface 3a of the fixing bolt 3 inserted through the hole.

The bolt holding member 40 allows the fixing bolt 3 to rotate about its axis by abutting the plurality of projections 46 against the outer peripheral surface 3a of the fixing bolt 3 when the fixing bolt 3 is inserted through the insertion hole 24. It is possible to hold the fixing bolt 3 so that it does not slip out of the insertion hole 24.

Therefore, once the fixing bolt 3 is inserted into the insertion hole 24, the connection terminal 21 is temporarily fixed to the combination connection terminal 11 by the fixing bolt 3 held by the bolt holding member 40, and the connection terminal 21 is attached. Can be easily carried to any location.

Further, when fastening the connection terminal 21 and the combination connection terminal 11 to the mounting location using the fixing bolt 3, the fixing bolt 3 is inserted through the respective insertion holes 16 and 24 of the connection portion 12 and the assembly connection portion 22. The fixing bolt 3 can be easily fastened to the mounting location without requiring time and effort.

Further, since the connection terminal 21 and the combination connection terminal 11 can be temporarily fixed by the fixing bolt 3, for example, when the three combination connection terminals 11 are stacked and accommodated as shown in FIG. The connection portion 12 of the combination connection terminal 11 located in the middle of the vertical direction beyond the engagement of 28 does not come off from the internal space 22s, and can be maintained in a state of being held by the fixing bolt 3.

It should be noted that the bolt holding member 40 described above can hold the fixing bolt 3 inserted into the peripheral edge of the insertion hole 24 on the facing surface 25 while allowing the rotation of the fixing bolt 3 around the axis. However, for example, the inner peripheral surface of the insertion hole 24 may be formed in a shape in which convex portions 46 protruding radially inward and concave portions 47 retracting radially outward are alternately arranged over the entire circumference. good too.

In addition, the "other connection terminal" in the present invention is not limited to being formed as the combination connection terminal 11 as in the above-described embodiment, and adopts a terminal metal fitting formed from a single plate material such as an LA terminal, for example. You may Specifically, as long as the connecting portion has an insertion hole through which the fixing bolt 3 can be inserted and can be bolted, the connecting portion may be formed, for example, in a circular shape in a front view, a tuning fork shape, or the like. The wire connection portions provided in the connection terminal are not limited to the configuration in which one connection portion is provided with a pair (two), and may be provided with one or a plurality of three or more.

In addition, the assembled electric wire of the present invention is not limited to the structure in which the fixing bolt 3 or the like is fastened to the bolt insertion hole 101 provided in the ground circuit 100 as the mounting location in the vehicle body as in the above-described embodiment. , Although not shown, a stud bolt projecting from the grounding point is inserted through each insertion hole of the assembly connection part of the connection terminal and the connection part of the combination connection terminal, and is electrically connected to the grounding point by tightening the nut. It is good also as a structure etc. which connect.

Regarding the correspondence between the present invention and the above-described embodiment, other connection terminals of the present invention correspond to the combination connection terminals 11 and 11A.
The slide guide portion corresponds to the pair of lateral side surfaces 26a and 26b in this embodiment, the side surface 26A or the first locking claw 31 in the first modification, and the side surface 26B or the second locking claw 31 in the second modification. It corresponds to the locking pawl 42 .

The fixing portion corresponds to the pair of projecting pieces 28 or both edges 29a in the width direction of the extending portion insertion opening 29 in the present embodiment, and the first locking claw 31 or the second locking claw 31 in the first modification. It corresponds to the locking pawl 32 , and corresponds to the side surface 26</b>B, the first locking pawl 41 or the second locking pawl 42 in the second modification.

Furthermore, the facing surface corresponds to the facing surfaces 25, 25A or the upper facing surface 25Ba,
The bolt holding means corresponds to the bolt holding member 40 (bolt holding means),
The connection terminal piece corresponds to the first connection terminal piece 110 or the second connection terminal piece 111,
The connecting piece corresponds to the first connecting piece 110a or the second connecting piece 111a.

1, 1A, 1B... Assembly wire 2... Wire 2a... Wire connected to combination connection terminal (wire connected to other connection terminal)
2b... Electric wires extending in the same direction as the electric wires 3... Fixing bolts 11, 11A... Combination connection terminals (other connection terminals)
Reference Signs List 12, 12A... Connection portion 13... Wire connection portions 14, 14A provided in the combination connection terminal... Main surface 16... Insertion hole (insertion hole provided in the connection portion)
21, 21', 21A, 21B... connection terminals 22, 22A, 22B... assembly connection portion 23... wire connection portion (auxiliary fixing portion) provided in the connection terminal
24... Insertion holes 25, 25A provided on the opposing surface 25Ba... Upper opposing surface (facing surface)
26a, 26b... Side side (slide guide part)
26A... Side (slide guide part)
26B... Side (fixed part (restriction part), slide guide part)
27, 27A... Insertion opening 28... A pair of protruding pieces (fixed parts)
29a . . . Both edges in the width direction of the extending portion insertion opening 29 (fixed portion)
31... First locking claw (fixed portion (locking portion), slide guide portion)
32... Second locking claw (fixed portion)
35... Deformation promotion part 40... Bolt holding member (bolt holding means)
41... First locking claw (fixed part)
42 . . . Second locking claw (fixed portion, slide guide portion)
110... First connection terminal piece (connection terminal piece)
111...Second connection terminal piece (connection terminal piece)
110a... First connection piece (connection piece)
111a: Second connection piece (connection piece)

Claims (16)

a wire connecting portion for connecting wires;
a connection portion having an insertion hole through which a fixing bolt is inserted, and an assembly connection portion to be assembled with the connection portion having the insertion hole in another connection terminal;
At the assembly connection,
a slide guide portion that guides the slide of the connection portion;
and a fixing portion that fixes the slid connection portion to the assembly connection portion at a position where the insertion holes communicate with each other. The wire connecting portion is
2. The connecting terminal according to claim 1, wherein the connecting terminal is arranged so that the electric wire extending in the same direction as the electric wire connected to the other connecting terminal is connected in an assembled state. 3. The connection according to claim 1, wherein the slide guide portion is a locking portion that locks the assembly connection portion to the outer peripheral edge of the connection portion so that the assembly connection portion can slide in the circumferential direction with respect to the connection portion. terminal. The assembly connection part is
Having a facing surface facing the main surface having the insertion hole in the connecting portion,
4. The connection terminal according to claim 1, wherein said facing surface has said insertion hole. 5. The connection terminal according to claim 4, wherein bolt holding means for holding the inserted fixing bolt while permitting rotation about its axis is provided on the peripheral edge of the insertion hole on the facing surface. The assembly connection part is
6. The connection terminal according to claim 4, further comprising a side surface extending from a side of said facing surface. The opposing surfaces have a pair of opposing surfaces on both sides in the thickness direction with respect to the main surface,
The side surfaces laterally connect the pair of opposing surfaces,
The assembly connection portion is box-shaped and has an insertion opening into which the connection portion can be inserted between the pair of facing surfaces,
on said side,
7. The method according to claim 6, further comprising a deformation promoting portion that promotes deformation of the side surface in a direction in which the pair of opposing surfaces approach each other and sandwich the connecting portion by fastening the fixing bolt inserted through the insertion hole. connection terminal. The fixed part is
8. The connection terminal according to claim 7, wherein the connection terminal is a restriction portion that restricts the movement of the connection portion inserted through the insertion opening in the extraction direction. The wire connecting portion is
9. The connection terminal according to claim 7, wherein the connection terminal is provided on one of the opposing surfaces and arranged at a position not overlapping the insertion opening when viewed from the insertion direction of the connection portion into the insertion opening. The wire connecting portion is
9. The connection terminal according to claim 7, wherein the connection terminal is provided on one of the side surfaces and arranged at a position not overlapping the insertion opening when viewed from the insertion direction of the connection portion into the insertion opening. 11. The connection terminal according to claim 10, wherein the wire connection portion is configured as an auxiliary fixing portion that assists fixing of the assembly connection portion by the fixing portion. a connection terminal according to any one of claims 1 to 11;
The other connection terminal having the wire connection portion is provided,
An electric wire is connected to both electric wire connection parts,
An assembled electric wire in which the connection portion and the assembly connection portion are assembled such that the insertion holes communicate with each other. the electric wire connected to the connection terminal;
13. The assembled electric wire according to claim 12, wherein said electric wire connected to said other connection terminal is oriented in the same direction. The other connection terminals are
A plurality of connection terminal pieces having a connection piece forming a part of the connection portion and the wire connection portion are provided, and the connection pieces are laminated to form the connection portion. 14. The assembled electric wire according to claim 12 or 13, which is composed of a combination connection terminal in which pieces are combined. 15. The electric wire assembly according to claim 14, wherein the plurality of combination connection terminals are assembled such that the main surfaces are oriented in the same direction. 15. The electric wire assembly according to claim 14, wherein the plurality of combination connection terminals are assembled such that the main surfaces are in opposite directions.

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