JPH0443978Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connector for connecting cords without the need to remove the coating, and more specifically, a connector for directly connecting cords to each other. Regarding.

[Prior Art] When connecting cord terminals, workers desire to be able to easily connect cord terminals without using special tools. In this case, connectors equipped with slit terminals, which can be connected without removing the core wire sheathing, have been developed since Japanese Patent Application Laid-Open No. 61-161677 and Japanese Utility Model Application No. 61-8952.

[Problem to be solved by the invention] Japanese Patent Application Laid-Open No. 161677/1983 discloses a plurality of branch terminals made up of a pair of U-series terminals raised in a U-shape.
A technique for arranging them in parallel in the width direction is disclosed. This branch terminal is constructed with a wide width in consideration of the open elasticity of the slit terminal part, so the necessary predetermined spacing between each branch terminal is assumed in consideration of the wire insertion space as well as the wide width. are separated by. Moreover, since it is related to the branch connection of a wire harness, the technology does not involve connecting multiple core wires of one cord in close proximity in the width direction and coaxially connecting them in a straight line, and this problem has not been solved at all. .

In addition, in the above-mentioned branch terminal, since the connection plate of the slit terminal is fixed to the surface of the board, etc., the connection plate protrudes extra by the thickness of the connection plate and the height of the lower part of the slit terminal, and space is wasted in the height direction of the casing. It required In any case, the technical concept of reducing the diameter of the core wire connection portion by bringing the U-slit terminals close together in the width direction and eliminating waste in the height direction has not been solved at all.

Furthermore, the cord insertion part following the core wire connection is
No. 61-8952, but no technique for making the diameter small is disclosed. In other words, since the casing is located on the outside where the first lead wire gripping piece enters with a gap on the outer circumference of the cord, even if it is applied to one cord insertion part, the casing located on the outside will It was only thicker.

Moreover, since the cord pull-out prevention part is composed of opposing concave and convex portions of the same size, it cannot exert sufficient retaining force, and it has to be long because it has four concave and convex portions in the axial direction. In addition, there were disadvantages such as the cord being easily broken due to the small boundary surface between the concave and convex portions.

The present invention was developed in view of the above-mentioned circumstances, and is designed so that the core wire connection block can be pressed with a normal tool to make a connection, and at the same time, the outer sheath can be easily pressed. The object of the present invention is to provide a connector that can be miniaturized and connected to a single cord in a small-diameter coaxial shape.

[Means for solving the problem] The connector according to the present invention to solve the above problem has a pair of slit terminals wider than the connecting plate at both ends of the narrow connecting plate in a substantially U-shape. a plurality of connectors comprising a plurality of connectors, and a core wire connection portion in which the plurality of connectors are arranged in a staggered manner with respective connecting plates and slit terminals in close proximity to each other, and both walls are provided in the width direction. In addition, the casing has a generally elongated casing having a pair of cord insertion portions extending to both ends in the axial direction of the fiber connection portion, and both outer walls of the cord insertion portion in the width direction are thinner than the fiber connection portion of the casing. an engagement receiving part having a stepped part formed in the thin part and further thinned on the bottom side of the thin part; long holes arranged in a staggered manner at the bottom of the core wire connection part and passed through; an underplate for fixing the slit terminal to the bottom outer surface, which is inserted into the hole from the outer surface of the bottom of the core wire connection part toward the inside; a plurality of insertion holes into which a plurality of core wires are inserted from the direction of the cord axis; a pair of core wire connection blocks which have a plurality of connection holes intersecting with the holes and into which the respective slit terminals are inserted, and which are attached in close contact with the core wire connection portion; and connected by each core wire connection block. One cord is pushed into each of the cord insertion portions, and the pair of engaging pieces enters the thin wall portion of the engaging receiving portion, and the tips of each engaging piece are bent to opposite sides to be engaged with the step portion. a pair of holding blocks having a pair of engaging claws; one piece protruding from each of the pair of holding blocks and the cord insertion portion, each having a vertical surface and a taper that are engaged in phase at the engagement position of the holding block; and a hinge portion rotatably connecting each of the pressing blocks to each of the core wire connecting blocks.

[Operation of the invention] The plurality of connectors are inserted inward through the elongated holes of the core wire connection part and fixed to the bottom surface with an under plate, and the slit terminal is closed by the amount that the connecting plate and the lower part of the slit terminal do not protrude. is lowered, and the height of the casing is correspondingly suppressed.
The plurality of connectors are spaced apart by a predetermined insulating interval based on the narrow width of the connecting plate, and are arranged in a staggered manner close to each other in the width direction, so that both walls of the casing in the width direction are narrow accordingly. It's getting wider.

Since a pair of core wire connecting blocks are provided with a size corresponding to the height and width of the casing, the cord is inserted from one cord insertion portion, and each core wire is inserted into the insertion hole, respectively. Similarly, pass the cord through the other cord insertion part, and insert each core wire into the insertion hole. When the pair of wire connection blocks are pressed against the casing with a normal tool, the wires are connected to the four slit terminals that enter through the connection holes. The wire connection block is attached in close contact with the top surface of the bottom of the wire connection portion, and the holding block is opposed to the upper portion of the cord insertion portion via the hinge portion.

Next, when one of the holding blocks is rotated and pressed through the hinge part, the pair of engaging pieces enters the thin wall part and the engaging claw at the tip engages with the step part, thereby tightening the cord. is in a pressed state. The pair of engagement pieces are located in the thin wall portion without protruding from the outer wall of the core wire connection portion. Similarly, when the other holding block is pressed to hold down the cord, the cord, the wire connection block installed in the casing, and the holding block become coaxial with a small diameter, resulting in a linear connection.

The cords connected in a straight line are curved in the axial direction by the upper and lower phases of the upper and lower retaining parts, and are also brought into an interlocking state by the vertical surface and the tapered surface. Note that, after pressing one of the core wire connection blocks and the pressing block, the other may be pressed in sequence.

[Embodiments of the invention] Examples of the invention will be described below with reference to FIGS. 1 to 8.

First, FIG. 1 shows a perspective view of a connector according to the present invention.

In the figure, 1 is a casing, and the casing 1 has a rectangular parallelepiped shape, is elongated as shown, and has an open top surface. A first cord insertion opening 4 and a second cord insertion opening 5 are formed in each of the opposing end surfaces 2 and 3 of the casing 1 . The casing 1
The first cord insertion part 6 communicates with the first cord insertion opening 4, the second cord insertion part 7 communicates with the second cord insertion opening 5, and these first and second cord insertion parts.
and a core wire connection section 8 located between the insertion sections 6 and 7 of the present invention.

A cord removal prevention portion 9 is formed on the bottom surfaces of the first and second cord insertion portions 6 and 7. The cord removal preventing portion 9 is composed of a tapered surface 10 rising inward and a vertical surface 11 extending from the tapered surface 10. Further, as both side walls of the first cord insertion part 6, the center of the engagement receiving part 12 becomes a thin part 13, and the bottom side of the thin part 13 becomes an even thinner part 14, so that these thin parts A stepped portion 15 is formed between 13 and 14.

Further, as shown in the figure, the core wire connection section 8 is composed of a first chamber 16 and a second chamber 17 whose walls are close to each other. 19 is formed. At the bottom of the core wire connection section 8, four pairs of long holes 20, 21, which open into the first and second chambers 16 and 17, respectively, are formed. Each pair of long holes 20
..., 21... are formed alternately in pairs, in a so-called staggered pattern, as shown in FIG.

Four connectors 22... are inserted into each pair of elongated holes 20..., 21... from the lower surface of the bottom. As shown in the figure, each of the connectors 22 includes a narrow connecting plate 23 and slit terminal portions 24, 2 extending from both ends of the connecting plate 23 and having a wider width than the connecting plate 23.
4 and is constructed in a U-shape. A slit 25 is formed in the center of the slit terminal portion 24, and includes, for example, a vertical groove 26 and a vertical groove 26 extending from the vertical groove 26.
6 and a guide groove 27 that gradually becomes wider than 6.

As mentioned above, since the long holes 20..., 21... are formed in a staggered manner,
As shown in the figure, the connectors 22 are also arranged in a staggered manner. In addition, in FIG. 1, 28 is an under plate, which is attached to the lower surface of the bottom of the casing 1 by adhesion, welding, or the like.

29 and 30 indicate the first and second blocks. The blocks 29 and 30 are connected to a core connection block 31,
It consists of a presser block 33 extending from the core wire connection block 31 via a hinge portion.

The wire connection block 31 is pushed into the second chamber 17 of the wire connection portion 8 of the casing 1 from above, and has four wire insertion holes 3 in one side.
4... is formed. Furthermore, as shown in FIG. 8, the bottom surface of the core wire connection block 31 has a connection hole 3 into which the slit terminal 24 of the connector 22 is inserted.
Four 1A are formed. Each of these connection holes 31
A crosses each insertion hole 34.

Furthermore, engagement pieces 35, 35 are formed on both sides of the presser block 33. Each engagement piece 3
At the tips of 5 and 35, engaging claws are formed that protrude inwardly so as to face each other.

Each of the engaging claws 36 of these engaging pieces 35, 35 engages with the stepped portion 15 of the first cord insertion portion 6. Further, the holding block 33 is formed at a position where the cord insertion recess 37 matches the first cord insertion opening 4 of the casing 1. Further, a cord removal prevention portion 38 is formed inside the cord insertion recess 37 . The cord removal prevention part 38 is
In the figure, it is composed of a tapered surface 39 rising downward and a vertical surface 40 extending from the tapered surface 39, and an angle 41 formed by the tapered surface 39 and the vertical surface 40.
is an acute angle.

Next, the effect will be explained.

First, the core wire connection block 3 of the second block 30
1 is inserted into the core wire connection portion 8 as shown in FIG. After that, as shown in the same figure, the second
The four core wires S of the cord K are inserted into the core wire insertion holes 34, respectively.

At this time, as shown in FIG. 7, each core wire S is positioned directly above each connector 22.

Thereafter, when the wire connecting block 31 is strongly pushed into the wire connecting portion 8 using pliers or the like, each of the core wires S is fitted into the groove 25 of each connector 22. At this time, each core wire S... is electrically connected to each connector 22....

Thereafter, the holding block 33 is fitted into the second cord insertion portion 7 as if rotated in the direction of arrow A. At this time, the engaging piece 3 of the presser block 33
5 and 35 engage with each stage 15 of the casing 1. As shown in FIG. 5, each core wire S of the first cord K, which has already been inserted in the same manner as above, is electrically connected to each core wire S of the second cord K. Connect to.

In addition, as mentioned above, the presser block 33 is
After engaging the casing 1, the cord removal prevention parts 9, 3
8 prevents the first and second cords K and K from coming off in the directions of arrows B and C.

By the way, since the slit terminal portions 24 of the connectors 22 are mutually connected to the connecting portions 23, the width L required for arranging the connectors 22 may be narrow.

[Effects of the invention] As explained above, the connector according to the invention provides the following effects.

By making the connecting plate narrow and arranging it in a staggered manner close to the pair of wide slit terminals, both walls of the casing can be brought closer in the width direction and the core connection blocks can also be matched. By inserting the slit terminal section into the inside of the casing from the bottom surface and fixing it with the under plate, the vertical height of the casing can be suppressed, and the engaging piece of the holding block can also be inserted into the thin wall of the outer wall on both sides of the cord insertion section. By engaging the part and step part, the cord holding part can also be made small in diameter, making it possible to put into practical use a connector with the smallest possible diameter as a whole. It was possible to connect in a straight line.

The cord is curved in the axial direction by vertically protruding the cord retaining part, and the vertical surface and tapered surface engage with each other, so even if the connector is short, it can be securely retained and the connector as a whole can be made more compact. I was able to figure it out.

After the wire connection block is pushed in, the holding block is placed oppositely from the same plane via the hinge section, so you can check the wire connection and prevent the cord from coming off. , I was able to complete the connection and confirmation of the lock at the same time.

[Brief explanation of the drawing]

The drawings show an embodiment of the linear connection connector according to the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a plan view of the main part of the cord connection part, Fig. 3 is a plan view of the connector, 4 is a front view of the same, FIG. 5 is a partially cutaway front view for explaining the connection state, FIG. 6 is a plan view of the same, FIG. 7 is a right side view of the same, and FIG. 8 is a cross-sectional view of the block. 1... Casing, 6, 7... Cord insertion part,
8... Core wire connection part, 9, 38... Cord removal prevention part,
10, 39... Tapered surface, 11, 40... Vertical surface, 12... Engagement receiving portion, 13, 14... Thin wall portion,
15...Step part, 20, 21...Long hole, 22...Connector, 23...Connecting plate, 24...Slit terminal part, 28...Under plate, 29, 30...
Core wire connection block, 31A... Connection hole, 32...
...Hinge part, 33... Holding block, 34...
Insertion hole, 35... engaging piece, 36... engaging claw.

Claims (1)

[Claims for Utility Model Registration] A plurality of connectors consisting of a pair of slit terminals wider than the connection plate at both ends of a narrow connection plate in a substantially U-shape, each of the plurality of connectors The connecting plate and the slit terminal are arranged in a staggered manner in close proximity to each other and have both walls in the width direction. A generally elongated casing having a pair of cord insertion portions, and both outer walls of the casing in the width direction of the cord insertion portion are thinner than the core wire connection portion, and the bottom side of the thin portion is further thinned. an engagement receiving part having a stepped part; an elongated hole that is arranged in a staggered manner at the bottom of the fiber connection part and is penetrated therethrough; an underplate for fixing the slit terminals to the outer surface of the bottom; a plurality of insertion holes into which a plurality of core wires are inserted from the direction of the cord axis; a pair of core wire connection blocks having connection holes and attached in close contact with the core wire connection portion; and one cord each connected by each core wire connection block being pushed into each of the cord insertion portions. ,
a pair of holding blocks having a pair of engagement pieces that enter the thin wall portion of the engagement receiving portion and a pair of engagement claws that bend the tips of each engagement piece toward the opposite side to be engaged with the stepped portion; a cord removal prevention part having a vertical surface and a tapered surface that are protruded facing each other from the pair of presser blocks and the cord insertion part and that engage in phase with each other at the engagement position of the presser blocks; A connector consisting of a hinge part that is rotatably connected to each core connection block.