JP2761557B2 - Cable splicer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cable connector for electrically connecting cables.

[Prior Art] For example, in order to efficiently transfer cables along with the relocation of a terminal on a telephone line in a building, FIG. 10 (FIG. 10A is a plan view, FIG. (A cross-sectional view) is used.

A terminal 71 for connecting the indoor line cable 69 and the terminal-side cable 70 is fixed to the upper part of the insulator 68, and a terminal 74 for connecting the indoor line cable 72 and the terminal-side cable 73 is fixed to the lower part.
Terminals 70 and 73 where cable transfer is frequently performed have their cable conductors fastened to terminals 71 and 74 with screws 75 and 76, while indoor lines 69 and 72 where cable transfer is relatively infrequent are performed with cable conductors. It is wound around the notch of the terminal 71, 74, and is further fixed by soldering 77, 78.

[Problems to be Solved by the Invention] The above-described conventional cable connector has poor connection due to insufficient tightening force of a screw or looseness of a screw and poor soldering under long-term connection, and further, high heat work associated with soldering. There were drawbacks in connection reliability, safety, and workability, such as securing the power of the electric iron.

In order to eliminate the above-mentioned drawbacks, a connection method as shown in FIG. 11, in which a wire is pushed into a U-shaped groove smaller than the cable diameter, is used, but in this case, it can be widely applied to different wire diameters. There is a drawback that there is no flexibility in wire diameter and that a U-shaped groove must be provided for each product type for each applicable wire diameter.

An object of the present invention is to provide a cable connector which solves the above-mentioned drawbacks, has a simple structure, has wire diameter flexibility and connection reliability, and can perform cable transfer with a simple operation.

[Means for Solving the Problems] A cable connector according to the present invention includes an elongated connector made of an elastic conductive metal plate, a holding member for holding the connector, and a housing for accommodating the holding member. A lower housing and an upper housing, wherein the connector is formed so as to sandwich the slit in the longitudinal direction and the slit in the longitudinal direction, a conductor portion of a cable is inserted, and a cable connection hole penetrating therethrough, A main portion, in which both side plate portions in the lateral direction of the slit are curved in directions opposite to each other in the axial direction of the cable connection hole, and a narrow portion extending from each end surface in the longitudinal direction of the main portion and having a width smaller than the end surface. The holding member is provided at both ends in the longitudinal direction of the flat plate portion having two contact portions in the longitudinal direction with which the conductor portion of the cable comes into contact. , The contact The end face of the main part of the splint is pressed by the spring force of both side plate parts, and the narrow part of the connector has an arm movable in the longitudinal direction, and at least one of the upper housing and the lower housing is When these are combined with each other, the holding member is received with a slight backlash, and the inner space and the width of each narrow portion provided in the flange portion are larger than the width of each narrow portion so that both ends of the connector protrude from the housing. A groove having a width smaller than the width of the end face of the main part, wherein the upper housing and the lower housing are combined with each other and located near each groove in a state where the holding member is housed, A cable insertion hole that penetrates perpendicularly to the plane including the flange portion, matches the position of each contact portion of the holding member, and into which the conductor portion of the cable is inserted, is formed in the upper housing. The cable connection hole of the connector is located closer to the groove than the cable insertion hole when the holding member is housed in the housing, and the narrow portion of the connector applies a pressing force to the end. The length is longer than the groove just enough to bend the two side plates of the main part and move the cable connection hole to the position of the cable insertion hole.

[Operation] First, the connector is held by the holding member and housed in both housings. Next, a pressing force is applied to one end of the connector to deflect both side plates of the main part of the connector to move one cable connection hole to the position of the cable insertion hole, and the conductor portion of the cable Into the cable insertion hole of the upper housing,
After passing through the contact portion of the holding member and inserting into the cable connection hole of the connector, the pressing force is released. Then, the spring force of the both side plates of the connector presses the cable connection hole against the conductor of the cable, presses the upper end of the conductor of the cable against the contact portion of the holding member, and is further restrained and held by the cable insertion hole of the upper housing. You. Thereafter, similarly, a conductor portion of another cable is inserted into the other cable connection hole and the cable insertion hole, and this is restrained and held. This completes a highly reliable electrical connection between the two cables. If the cable connection hole and the cable insertion hole are enlarged to some extent, flexibility can be given to the cable wire diameter.

Example Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a connector constituting a cable connector according to one embodiment of the present invention.

The cable connector 10 is made of an elastic conductive elongated metal plate, and is formed so as to sandwich the elongated slit 11 in the longitudinal direction and the slit 11 in the longitudinal direction. Connection holes 13a, 13b
A main part 18 having lateral side plates 12a and 12b of the slit 11 curved in opposite directions in the axial direction of the cable connection holes 13a and 13b, and each of the main parts 18 in the longitudinal direction. It comprises narrow portions 14a, 14b extending from the end face and narrower than the main portion 18, and end portions 17a, 17b bent into an L shape.

FIG. 2 is a perspective view of a holding member that holds the connector 10 and constitutes the cable connector according to one embodiment of the present invention.

The holding member 20 is made of resin, and the narrow portions 14a, 14
Arms 21a and 21 that hold b and lock connector 10
b, 22a and 22b and V-shaped contact portion 23 with the cable conductor
a, 23b and a flat plate portion 24.

FIGS. 3 (a) and 3 (b) are perspective views of a lower housing and an upper housing constituting a cable connector according to an embodiment of the present invention, respectively.

The lower housing 30 is made of resin, and has a rectangular base portion 31;
It is formed on the base part 31, the upper part is open, and the step part
And a rectangular main body 32 having 33a and 33b.
The internal space 35 of the main body 32 has the same size as the holding member 20, and the holding member 20 can be inserted. Upper flange of body 32
Grooves 34a, 34b having a width slightly longer than the width of the narrow portions 14a, 14b of the connector 10 are formed in the flange portion 40. Here, the length of the narrow portions 14a, 14b of the connector 10 is larger than the wall thickness of the flange portion of the main body 32 (the length of the grooves 34a, 34b). Guide grooves 36a and 36b are formed on the outer surface of the main body 32. On the other hand, the upper housing 40 is also made of resin and has a mountain-shaped main body 41 and guide grooves 36a and 36b of the lower housing 30.
And locking pieces 42a and 42b for fixing the upper housing 40 to the lower housing 30. The lower part of the main body 41 has a rectangular shape having the same size as the main body 32 of the lower housing 30, and grooves 44a and 44b having the same size as the grooves 34a and 34b are provided so as to face the grooves 34a and 34b, respectively. The main body 41 further includes pressing surfaces 43a and 43b that press the upper surface of the holding member 20 when the holding member 20 is inserted into the internal space 46, and a cable insertion hole 4 that vertically penetrates the main body 41.
5a and 45b are provided.

FIG. 4 (a) is a plan view showing a state where the connector 10 is mounted on the lower housing 30, and FIG. 4 (b) is a state where the upper housing 40 is assembled to the lower housing 30 from the state shown in FIG. 3 (a). FIG.

An external force in the direction of the arrow is applied to the ends 17a, 17b of the connector 10, and the side plates 12a, 12b are further curved to insert the narrow portions 14a, 14b between the arms 21a and 21b of the holding member 20, and 22a and 22b. Then, after releasing the external force to lock the connector 10 to the holding member 20, the holding member 20
Is mounted in the internal space 35 of the main body 32 of the lower housing 30 (FIG. 4A). Next, the upper housing 40 is put on the lower housing 30, and the lower housing 3 is fixed by the locking pieces 42a and 42b.
It is fixed to 0 (FIG. 4 (b)). At this time, the cable insertion holes 45a and 45b of the upper housing
And cable connection holes 13a and 23b.
a and 13b are located outside the cable insertion holes 45a and 45b, respectively, and ends 17a and 17b of the connector 10 protrude from the housings 30 and 40, respectively.

FIG. 5 is a cross-sectional view showing a state where the cables 50a50b are connected from the state of FIG. 4 (b).

By applying a pressing force in the direction of the arrow to the end portion 17a of the connector 10, the inner wall of the connector 10 is attached to the inner surfaces of the arms 22a and 22b of the holding member 20, as shown in FIGS. As shown in Fig. 5, the curved shapes of the side plates 12a and 12b cause curved surfaces to be bent in directions opposite to each other, as shown in Fig. The bending of the side plates 12a and 12b toward the internal space 46 is not restricted because the flat plate of the holding member 20 shown in FIG. 1 is missing. At this time, by adjusting the deflection by the pressing force, the cable connection hole 13a of the connector 10 is positioned at the cable conductor contact portion 23a of the holding member 20 and the cable insertion hole 45a of the upper housing 40, and after the cable conductor 50a is inserted. By releasing the pressing force, the spring force of the side plates 12a and 12b of the connector 10 presses the cable connection hole 13a against the cable conductor 50a, and the upper end of the cable conductor 50a holds the cable conductor contact portion 23a of the holding member 20. Cable conductor 5 in order to press it against the cable insertion hole 45a of the housing 40.
A contact force is generated between Oa and the cable connection hole 13a and the cable conductor contact portion 23a. Next, when a pressing force in the direction of the arrow is applied to the end portion 17b, the movement of the connector 10 in the pressing force direction of the connector 10 is restrained because the cable conductor 50a is already restrained and held in the cable conductor contact portion 23a and the cable conductor insertion hole 45a. Regulated, forming contacts in the same process as above,
An electrical connection is made between 50a and cable conductor 50b. When transferring the cable, the cable connection hole 13a is adjusted to the position of the cable conductor contact portion 23a and the cable insertion hole 45a by applying a pressing force in the arrow direction to the end 17a, and then the cable conductor 50a is connected to the cable conductor. It is removed from the contact portion 23a and the cable insertion hole 45a, and is transferred to a target cable connection hole. The cable transfer at the other end is performed in a similar manner.

6 (a) and 6 (b) show the cable connection holes 13 of the connector 10.
The cable diameter flexibility of a will be described.

FIG. 3A shows the maximum wire diameter, and FIG. 3B shows the state in which the cable conductor with the minimum wire diameter is connected. As is clear from the figure, the maximum wire diameter is the maximum conductor diameter that can be inscribed in the cable connection hole 13a and the cable conductor contact portion 23a, and the minimum wire diameter is the minimum conductor diameter inscribed in the cable connection hole 13a and the cable conductor contact portion 23a. The cable connection hole 13a is pressed against the cable conductor 50a in the direction of the arrow by the spring force of the side plates 12a and 12b according to the difference between the inscribed diameters until the cable conductor 50a is pressed against the cable conductor contact portion 23a. By moving
Electrical connection having wire diameter flexibility can be performed. In addition, the shape of the cable connection hole is circular, square, or rhombic, so that it has a contact force to the cable conductor and has flexibility in cable wire diameter, and any shape can be applied.

Next, an embodiment in which a plurality of connectors are held to form a multi-connection portion with a cable conductor will be described.

FIG. 7 is a perspective view of a holding member for holding the two connectors 10 shown in FIG.

This holding member is a flat plate remaining portion provided at an intermediate portion on the upper surface.
24 'and cable conductor contact portions 23a provided on both sides thereof,
23b, 23a ', 23b' and arms 21a, 21b, 21a ', 21b', 22a, 22b, 2
2a 'and 22b'.

FIG. 8 shows a housing to which two connectors are mounted, and FIG. 8A is a perspective view of a lower housing, and FIG.
FIG. 4 is a perspective view of an upper housing.

The lower housing includes a base portion 31 'and internal spaces 35a and 35b.
A main body 32 'having grooves 34a, 34
a ', 34b, 34b', steps 33a, 33a ', 33b, 33b', guide groove
36a and 36b are provided. On the other hand, the upper housing
The main body 4 includes a main body 41 'having internal spaces 46a and 46b, and locking pieces 42a and 42b inserted into the guide grooves 36a and 36b to fix the upper housing to the lower housing.
1 'has grooves 44a, 44a', 44b, 44b 'and pressing surfaces 43a, 43a', 43b,
43b 'and cable insertion holes 45a, 45a', 45b, 45b 'are provided.

The attachment of the connector to the housing, the contact force generation mechanism, the flexibility of the cable wire diameter, and the cable transfer in the present embodiment are the same as in the case of the single connector described above, so detailed description is omitted, and the cable conductor is omitted. A mechanism for forming a multi-connection portion with the above will be described.

FIG. 9 is a view showing a state in which two connectors A and B are mounted on a lower housing via a holding member C.

The cable conductor is connected through the cable insertion holes 42a, 42a ', 42b, 42b' of the upper housing shown in FIG. 8B located above the holding member C in accordance with the cable connection procedure described in FIG. C cable conductor contact portions 23a, 23b, 23a ',
23b 'and cable connection holes 13a, 13b, 13a', 13 of connectors A and B
Insert into b 'to form a connection. As a result, the conductive contact member 23a, 23b, 23a ', 23b'
Are provided integrally, so that a multi-connection portion with each cable conductor is formed.

The end portions 17a and 17b may have the same width as the narrow portions 14a and 14b, and may not necessarily be bent in an L shape.
The connector 10 does not necessarily have to be rectangular, and the width of the main part 18 may differ depending on the location. Further, the groove of the flange portion of the housing may be provided in only one flange portion.

[Effects of the Invention] As described above, according to the present invention, the conductor of the cable is inserted into the cable insertion hole provided in the housing and the cable connection hole provided in the connector, and the conductor of the cable is inserted by the spring force of the connector. By restraining and holding, there is an effect that a highly reliable electrical connection can be made, the cable can be easily transferred, and the flexibility of the wire diameter of the cable can be easily realized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector constituting a cable connector of one embodiment of the present invention, FIG. 2 is a perspective view of a holding member constituting a cable connector of one embodiment of the present invention, and FIG. FIG. 3A is a perspective view of a lower housing constituting a cable connector according to an embodiment of the present invention, FIG. 3B is a perspective view of an upper housing, and FIG. FIG. 4 (b) is a plan view showing the mounted state, and FIG.
FIG. 5 is a sectional view showing a state in which the upper housing 40 is mounted on the lower housing 30 from the state shown in FIG. 5, FIG. 5 is a sectional view showing a state in which the cable conductors 50a and 50b are connected from the state in FIG. a) and (b) are diagrams for explaining the cable diameter flexibility of the cable, and FIGS. 7, 8 (a) and 8 (b) each show a cable connector according to another embodiment of the present invention. FIG. 9 is a perspective view of the holding member, the lower housing, and the upper housing. FIG. 9 is a plan view showing a state where the holding member of FIG. 7 is mounted on the lower housing of FIG. (B) is a plan view and a sectional view of a conventional cable connector, and FIG. 11 is a plan view of a U-shaped groove terminal. 10 Connector, 11 Slit, 12a, 12b Side plate, 13a, 13b, 13a ', 13b' Cable connection hole, 14a, 14b Narrow part, 15a, 15b, 16a, 16b ... wall, 17a, 17b ... end, 18 ... main part, 20 ... holding member, 21a, 21b, 22a, 22b, 21a ', 21b', 22a ', 22b' ... arm, 23a, 23b, 23a ', 23b' ... contact portion, 24, 24 '... flat plate portion, 30 ... lower housing, 31 ... base portion, 32 ... body, 33a, 33b, 33a', 33b '... step portion, 34a, 34b, 34a ', 34b' ... groove, 35, 35a, 35b ... internal space, 36a, 36b ... guide groove, 40 ... upper housing, 41 ... body, 42a, 42b ... locking piece 43a, 43b, 43a ', 43b' ... pressing surface, 44a, 44b, 44a ', 44b' ... groove, 45a, 45b, 45a ', 45b' ... cable insertion hole, 46 ... internal space, 50a , 50b …… Cable conductor, 51,52 …… Cable.

Claims (1)

(57) [Claims] 1. A connector comprising: an elongated connector made of an elastic conductive metal plate; a holding member for holding the connector; a lower housing and an upper housing for housing the holding member; Is formed so as to sandwich the slit in the longitudinal direction and the slit in the longitudinal direction, and has a cable connection hole into which the conductor of the cable is inserted and penetrates. From the main portion curved in the opposite direction in the axial direction of the connection hole, a narrow portion extending from each end face in the longitudinal direction of the main portion and having a width smaller than the end surface, and an end portion connected to each narrow portion. The holding member is provided at both ends in the longitudinal direction of the flat portion having two contact portions in the longitudinal direction with which the conductor portion of the cable contacts, and the end face of the main portion of the connector is provided on both side plates. By the spring force of the part A narrow portion of the connector has an arm movable in a longitudinal direction, and at least one of the upper housing and the lower housing slightly slams the holding member when they are combined with each other. The connector has an internal space and a groove provided in the flange portion and having a width larger than the width of each narrow portion and smaller than the width of the end face of the main portion so that both ends of the connector project from the housing. The upper housing and the lower housing are combined with each other, are located near each groove in a state where the holding member is housed, penetrate the upper housing perpendicularly to a plane including a flange portion, and A cable insertion hole in which a position matches each contact portion and a conductor portion of the cable is inserted is formed in the upper housing, and the cable connection hole of the connector is When the holding member is accommodated in the housing, it is located closer to the groove than the cable insertion hole, and the narrow portion of the connector applies a pressing force to the end to bend both side plates of the main portion. In addition, a cable connector longer than the groove enough to move the cable connection hole to the position of the cable insertion hole.