JPH09161858A - Mounting structure of terminal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely bring assembled terminal fittings into contact with each other. SOLUTION: Terminal fittings 10, 30 have wire connecting parts 24, 44 mutually protruded in a row in the assembled state. The assembling of the terminal fittings 10, 30 is performed by relatively displacing the terminal fittings 10, 30 in the direction of mutually approaching the wire connecting parts 24, 44. When a holding member 50 is installed to the wire connecting parts 24, 44 in the assembled state, both the wire connecting parts 24, 44 are pressed in the approaching direction, or the assembling direction by the elastic restoring force, and the terminal fittings 10, 30 are closely contacted to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal metal fitting structure for assembling a plurality of terminal metal fittings in contact with each other.

[0002]

2. Description of the Related Art For example, when attaching grounding terminals individually connected to a plurality of devices to a body or the like, a structure in which the grounding terminals are superposed on each other and assembled integrally and fixed to the body by bolts or screws is used. It is used. In this structure, the ground terminals are brought into close contact with the body and the ground terminals are brought into close contact with each other by tightening bolts or screws. Since the ground terminals are in close contact with each other, the ground terminals that are not in direct contact with the body can also be indirectly connected to the body.

[0003]

However, in the conventional structure, since the ground terminals are adhered to each other by tightening the bolts or the screws, if the bolts or the screws are loosened, they are not in direct contact with the body. There is a possibility that the conductivity of the ground terminal may deteriorate. The present invention was devised in view of the above circumstances, and an object thereof is to ensure contact reliability between assembled terminal fittings.

[0004]

According to the invention of claim 1, there is provided a terminal fitting assembly structure for contacting and assembling a plurality of terminal fittings, wherein the terminal fittings are arranged side by side in the assembled state. The present invention is characterized in that a projecting electric wire connecting portion is provided, and a holding member that presses in a direction in which the terminal metal fittings are brought into close contact with each other by being attached to the electric wire connecting portion in the assembled state of the terminal metal fittings. .

According to a second aspect of the invention, in the first aspect of the invention, the terminal fitting is assembled by displacing the wire connecting portions in a direction of approaching each other, and the holding member presses the wire connecting portions toward each other. There is a feature in that.

[0006]

According to the invention of claim 1, when the terminal fittings are assembled and the holding member is attached to the wire connecting portion, the terminal fittings are pressed in a direction in which the terminal fittings are in close contact with each other, thereby ensuring the contact between the terminal fittings. To be done.

According to the second aspect of the invention, when the terminal fitting is assembled and the holding member is attached to the electric wire connecting portion, the electric wire connecting portion is pressed in the approaching direction and the terminal fittings come into close contact with each other,
Therefore, the contact between the terminal fittings is secured.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, 2
An example will be described in which two terminal fittings are assembled and attached to a grounded grounding panel (not shown), which is applied to a grounding terminal fitting assembly structure.

In the assembly structure of this embodiment, the first terminal fitting 10 shown in the upper part of FIG. 1 and the second terminal fitting 30 shown under the first terminal fitting 10 in the figure are arranged. Two types of terminal fittings are used.

The first terminal fitting 10 is formed by bending a conductive metal plate material punched into a predetermined shape and bending it, and is composed of an assembly portion 11 and an electric wire connection portion 24.
The assembling portion 11 is arranged so as to be passed between two flat plate-like overlapping portions 12 and 12 arranged in parallel with each other with a space therebetween and one end portion of both plate-like overlapping portions 12 and 12. And the plate-shaped locking portion 13 disposed on the opposite side, and the plate-shaped locking portion 13 disposed between the two plate-shaped overlapping portions 12 and 12 on the opposite side of the locking portion 13 from each other. Receiver 14
Consists of The two plate-shaped overlapping portions 12 and 12 have the same surface height, and the locking portion 13 and the receiving portion 14 have the same surface height. And this locking portion 1
3 and the receiving portion 14 are set to a low height in which the plate-like overlapping portions 12 and 12 are provided with a step substantially corresponding to the plate thickness.

The locking portion 13 is formed with a disengagement restricting portion 15 which extends in a flush manner to the side opposite to the receiving portion 14, and an upper surface of the disengagement restricting portion 15 has a second terminal which will be described later. Metal fittings 3
The locking claw 16 for engaging with the 0 locking hole 39 is formed by cutting and raising. An inclined guide surface 17 for facilitating an engagement operation with a receiving portion 34 of a second terminal fitting 30 described later is formed on a leading edge of the detachment restricting portion 15. An escape groove 18 is provided between the disengagement restricting portion 15 and the plate-shaped overlapping portion 12 to allow a continuous portion of the plate-shaped overlapping portion 32 and the receiving portion 34 of the second terminal fitting 30 to enter. I have.

On the upper surface of the receiving portion 14, there is formed a locking hole 19 for engaging with the locking claw 36 of the second terminal fitting 30. Similarly, the receiving portion 14 is formed with a protruding portion 20 extending flush with the disengagement restricting portion 15, and the upper surface of the protruding portion 20 An inclined guide surface 21 for facilitating the fitting operation is formed. An escape groove 22 is provided between the projecting portion 20 and the plate-shaped overlapping portion 12 to allow a continuous portion of the plate-shaped overlapping portion 32 and the locking portion 33 of the second terminal fitting 30 to enter. ing.

The edge portions of the engaging portion 13 and the projecting portion 20 which are opposed to each other are formed in an arc shape having a concentric and same diameter. , 1
2 are arranged so as to be in contact with each other, and a space surrounded by these edges is a through hole 23 for fitting with a stud bolt (not shown).

A wire connecting portion 24 is formed integrally with the assembling portion 11. That is, the electric wire connection portion 24 is provided so as to extend from the edge on the side of the receiving portion 14 of the one plate-shaped overlap portion 12 in a direction perpendicular to the length direction of the plate-like overlap portion 12. I have. This electric wire connection part 24
Insulation barrel 24A and wire barrel 24B
The insulation barrel 24A has a resin coating W on the terminal of the ground wire W from the device (not shown) side.
a, and the wire barrel 24B has its ground wire W
Is bonded to the core wire Wb, which is exposed by peeling the resin coating Wa.

On the other hand, the second terminal fitting 30 is formed by bending a conductive metal plate material punched into a predetermined shape like the first terminal fitting 10 and bending it to form an assembly portion 31 and an electric wire connection portion 44. It is configured with. The assembling portion 31 has a configuration in which the assembling portion 11 of the first terminal fitting 10 is turned upside down, and the plate-shaped overlapping portions 32, 32 have the first terminal fitting 10.
And the locking portion 33 and the receiving portion 34 are overlapped on the receiving portion 14 of the first terminal fitting 10 and the upper surface side of the locking portion 13, respectively. It has become. Similarly to the first terminal fitting 10, the attachment part 31 of the second terminal fitting 30 is formed with a release restriction part 35 and a locking claw 36 on the locking part 33, and is locked on the receiving part 34. A hole 39 and a protrusion 40 are formed, and a through hole 43 that matches the through hole 23 of the first terminal fitting 10.
Are formed, and between the disengagement restricting portion 35 and the plate-shaped overlapping portion 32 and between the protrusion 40 and the plate-shaped overlapping portion 3.
2 are formed with escape grooves 38 and 42.

The wire connecting portion 44 is composed of the first terminal fitting 1
No. 0 as well as an insulation barrel 44A and a wire barrel 44B.
Is crimped. The electric wire connection portion 44 is provided to extend from a side edge of the one plate-shaped overlapping portion 32 on the receiving portion 34 side in a direction perpendicular to the length direction of the plate-shaped overlapping portion 32, and When assembled with the first terminal fitting 10, they are arranged in parallel with the electric wire connection part 24.

The first terminal fitting 10 and the second terminal fitting 30
The assembling procedure will be described. The first terminal fitting 10 is arranged above the second terminal fitting 30, and the locking portions 13 and 33 of both sides are arranged.
Respectively into the through holes 43, 23 of the other side, and from this state, in the longitudinal direction of the plate-shaped overlapping portions 12, 32 (hereinafter referred to as the assembling direction) so that the through holes 23, 43 are aligned with each other. Slide it. Then, the disengagement restricting portion 15 of the first terminal fitting 10 sinks under the receiving portion 34 of the second terminal fitting 30, and at the same time, the disengagement restricting portion 35 of the second terminal fitting 30 moves above the receiving portion 14 of the first terminal fitting 10. When the locking claws 16 and 36 are fitted into the locking holes 19 and 39, the assembly of the terminal fittings 10 and 30 is completed. In this state, the locking claws 16 and 36 and the locking holes 19 and 3
The engagement with 9 restricts the disengagement in the opposite direction to the assembling, and the rear ends of the escape grooves 18 and 42, 22 and 38 come into contact with each other to prevent excessive assembling beyond the normal position. It Further, the vertical disengagement is restricted by the engagement between the plate-shaped overlapping portions 12 and 32 and the engagement between the locking portions 13 and 33 and the receiving portions 14 and 34.

Next, the structure for holding both the terminal fittings 10 and 30 in the assembled state will be described. In this embodiment, the holding member 50, which is a separate component from the terminal fittings 10 and 30, is used as the holding means. Holding member 50
Is composed of a horizontal plate portion 51 and a pair of side wall portions 52, 52 extending downward from both side edges of the plate portion 51. The side wall portions 52, 52 may be elastically bent so as to open and close. It is possible. The material of the holding member 50 may be any material that exhibits elasticity, such as metal or synthetic resin. Both side walls 5
The distance between the inner wall surfaces of 2, 52 facing each other is slightly smaller than the distance between the outer surfaces of the wire connecting portions 24, 44 in the state where the first terminal fitting 10 and the second terminal fitting 30 are assembled. It is set small. In addition, the side wall portion 5
The lower end edge of 2 is formed with a retaining portion 53 protruding inward.

The holding member 50 is the first terminal fitting 10
The second terminal fitting 30 and the second terminal fitting 30 are assembled in advance so as to cover both the electric wire connecting portions 24 and 44. In the mounted state, the both side wall portions 52, 52 have the electric wire connecting portions 24, 44.
The holding member 50 is elastically deformed so that the side wall portions 52, 52 are spread. Then, due to the elastic restoring force of the holding member 50, both wire connecting portions 2
4, 44 are pressed in the approaching direction. The direction in which the wire connecting portions 24, 44 approach each other is such that
Since the assembling directions of the 30 are the same, the deep ends of the escape grooves 18 and 42, 22 and 38 are strongly adhered to each other by the pressing force of the holding member 50.

As described above, in the present embodiment, the wire connecting portion 2
Since the holding member 50 is attached to 4, 4 and the elastic restoring force presses the terminal fittings 10, 30 in the assembling direction so that they are in close contact with each other, the assembled terminal fittings 10, 30 are High contact reliability can be obtained.

Further, since the side wall portion 52 is formed with the retaining portion 53 projecting inward, even if an external force acts upward on the holding member 50, the retaining portion 53 is connected to the wire connecting portion 2.
The holding member 50 is prevented from being detached by being caught by 4, 44. Therefore, the reliability of the function of holding the terminal fittings 10 and 30 by the holding member 50 is high.

<Second Embodiment> Next, a second embodiment of the present invention.
Will be described with reference to FIGS. 4 and 5. In this embodiment, the structure of the holding member for holding the first terminal fitting and the second terminal fitting in the assembled state is different from that of the first embodiment. Since the first terminal fitting and the second terminal fitting are the same as those in the first embodiment, the same components are designated by the same reference numerals as those in the first embodiment, and the description of the structure, action, and effect is omitted.

The holding member 60 of this embodiment is formed by bending a metal plate material having a predetermined shape, and has a horizontal transition plate portion 61,
It is composed of a pair of holding portions 62, 62 rising upward from both ends of the transition plate portion 61, and a pair of claw pieces 63, 63 rising upward from the middle position of the transition plate portion 61. The connecting plate portion 61 is arranged so as to be passed between the electric wire connecting portions 24 and 44, and the holding portions 62 and 62 are in close contact with the outer surfaces of the wire barrels 24B and 44B of the electric wire connecting portions 24 and 44. The claw pieces 63, 63 are arranged so as to engage with the inner side surfaces of the wire barrels 24B, 44B. The spacing between the holding portions 62, 62 is equal to the electric wire connecting portion 24,
The dimension of the holding member 60 is set to be slightly smaller than the distance between the outer side surfaces of the holding members 44, and the holding member 60 can be elastically deformed so as to expand both the holding portions 62, 62. Enclosure 6
The distance between the two and the claw piece 63 is slightly smaller than the width of the wire barrels 24B and 44B.

The holding member 60 is used for the first terminal fitting 10
The second terminal fitting 30 and the second terminal fitting 30 are pre-assembled and attached to both the wire connecting portions 24 and 44 from below. In the mounted state, the holding member 60 is elastically deformed so that the both holding portions 62, 62 are engaged with the both electric wire connecting portions 24, 44 and are spread outward, so that the elastic restoring force of the holding member 60 causes the both electric wires to be deformed. The connecting portions 24, 44 are pressed in the approaching direction. Since the direction in which the wire connecting portions 24, 44 approach each other matches the direction in which the two terminal fittings 10, 30 are assembled, the relief grooves 18 and 42, 42, 22 and 38 due to the pressing force of the holding member 60.
The inner edges of the will be firmly attached.

As described above, in this embodiment, the electric wire connecting portion 2
Since the holding members 60 are attached to the members 4, 4 and 44, and the elastic restoring force presses the terminal fittings 10, 30 in the assembling direction so that they are in close contact with each other, the assembled terminal fittings 10, 30 are High contact reliability can be obtained.

Further, the claw pieces 63 are formed on the wire barrels 24B,
44B is elastically sandwiched between the wrapping portion 62 and frictional resistance between them, and the insulation barrel 24A is smaller than the width dimensions of the wire barrels 24B and 44B. , 44A and the width of the continuous portion with the plate-shaped overlapping portions 12, 32 are larger. Therefore, the holding member 60
Even if an external force acts on the wire connecting portions 24, 44 in the longitudinal direction, the holding member 60 does not deviate from the wire connecting portions 24, 44. Further, since the upper ends of the holding portion 62 and the claw piece 63 are bent inward, these bent portions are caught by the wire barrels 24B and 44B. Thereby, the holding member 60 causes the wire connecting portions 24, 44 to
It is prevented from being detached downward with respect to. In this way, the holding member 60 is kept attached to the wire connecting portions 24 and 44.

Further, since the holding member 60 is made of metal, the holding member 60 also connects the first terminal fitting 10 and the second terminal fitting 30. Therefore, the contact reliability between the two terminal fittings 10, 30 is improved.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention.

(1) In the above embodiment, a locking piece protruding inward may be formed on the side wall of the holding member by cutting and raising, and the locking piece may be hooked on the wire connecting portion.

(2) In the above embodiment, the case where the holding member presses the electric wire connecting portions in the direction of approaching each other has been described, but according to the present invention, the electric wire connecting portions are arranged in the vertical direction, that is, the plate-like overlapping. The configuration may be such that it is sandwiched in the overlapping direction of the mating portions.

(3) In the above-described embodiment, the case where the terminal fitting is applied by sliding it along the plate surface of the plate-shaped overlapping portion has been described. With alignment,
It can also be applied to a type in which the through hole is relatively rotated and assembled.

(4) In the above embodiment, a case where two terminal fittings are assembled has been described. However, the present invention can be applied to a case where three or more terminal fittings are assembled.

(5) In the above embodiment, the case where the invention is applied to the terminal fitting for grounding has been described, but the present invention can also be applied to a terminal fitting used for purposes other than grounding.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a terminal fitting is separated in a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the terminal fittings are assembled in the first embodiment.

FIG. 3 is a perspective view showing a state in which a holding member is attached to the terminal fitting assembled in the first embodiment.

FIG. 4 is a perspective view showing a state in which a holding member is not attached to the terminal fitting assembled in the second embodiment.

FIG. 5 is a perspective view showing a state in which a holding member is attached to a terminal fitting in the second embodiment.

[Explanation of symbols]

 10 ... 1st terminal metal fitting 30 ... 2nd terminal metal fitting 24,44 ... Electric wire connection part 50 ... Holding member

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location H01R 11/12 H01R 11/12 F

Claims (2)

[Claims] 1. An assembly structure of terminal fittings for assembling a plurality of terminal fittings in contact with each other, wherein the terminal fittings are provided with electric wire connecting portions projecting side by side in the assembled state, An assembled structure of terminal fittings, comprising: a holding member that is pressed in a direction in which the terminal fittings are brought into close contact with each other by being attached to the electric wire connecting portion when the terminal fittings are assembled. 2. The terminal fitting is assembled by displacing the wire connecting portions in a direction of approaching each other, and the holding member is configured to press the wire connecting portions in a direction of approaching each other. Assembling structure of terminal metal fittings.