JPH0449828Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electric wire connector for connecting a plurality of electric wires.

Conventional technology Conventionally, electric wire connectors for connecting multiple electric wires are
There is a device described in Japanese Utility Model Application Publication No. 54-5089, in which both side walls are provided through the insertion interval of a plurality of electric wires, and both sides are connected by a connecting part to form a holding body. An inclined groove is provided on one side edge of both side walls of the electric wire. Then, a plurality of electric wires are inserted into this holding body, a pressing cam is driven between both side walls of the holding body with a tool such as a hammer, and engaging protrusions protruding on both sides of the pressing cam are engaged with the inclined grooves, Slide the engaging protrusion along the slanted groove, press down the pressing cam toward the wires, and screw the pressing cam to the holder in this pressed down state to press and fix the multiple electric wires between the pressing cam and the connecting wall. and connects electric wires. However, in this connection work,
The work is usually carried out at high places, and the scaffolding of the workers is unstable, requiring heavy lifting such as driving with hammers, etc.
It is not suitable for detailed work such as fixing screws, and if the driving force with a hammer or the like is weak, sufficient pressing force cannot be obtained against the wire, which may cause the wire to separate. In addition, if the both side walls of the holder are damaged or expanded due to twisting of the wire or external force, the engaging projections will fall off from the slanted grooves, the pressure on the wire by the pressing cam will be released, and the wire will be removed. It had drawbacks such as the possibility of detachment.

Problems to be solved by the invention This invention aims to solve the above-mentioned problems, and it improves the workability of connecting electric wires that involve high places, and also makes the connection of electric wires more reliable. This is intended to prevent the wire from becoming detached due to damage to the wire connector due to twisting of the wire, external force, etc.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention forms a holding body by connecting both side walls with a connecting wall, which are provided at intervals that allow insertion and holding of a plurality of electric wires. A slanted groove that is inclined toward the connecting wall is formed from one side edge on both sides of the wall, and engaging protrusions protruding from both sides of the pressing cam are rotatably engaged with the slanted slit, and the pressing cam and the electric wire are connected to each other. In between, a fixing body is formed to press and fix the plurality of electric wires to the inner surface of the holding body by the pressure of a pressing cam, and a fitting body is formed to prevent the holding body from expanding when the electric wires are pressed by this fixing body. is fitted around the outer periphery of the holding body.

Further, the end of the fixed body located on the pressing cam side is provided with an arc-shaped protrusion to provide an engaging portion, this engaging portion is engaged and fixed to the pressing cam, and the end portion on the electric wire side is recessed in an arc-shape. A pressing surface may also be formed.

Furthermore, uneven biting protrusions may be formed on the inner surface of the connecting wall.

Further, uneven biting protrusions may be formed on the pressing surface.

Function Since the structure is as described above, in order to connect the electric wires, multiple electric wires are stacked and inserted between both side walls of the holding body, and then the fixing body is inserted and positioned on the surface of the electric wires between the both side walls. . Next, when the pressing cam is inserted between the both side walls and the engaging protrusions projecting on both sides are fitted into the inclined split grooves, the pressing cam tilts toward the electric wire and presses the electric wire via the fixed body. Also, this wire
It is necessary to insert the electric wire located on the fixed body side so that the tip thereof is located on the opening side of the slanted groove. When the electric wire located at the upper part acts in the direction of extraction from the holder, it simultaneously attempts to move the pressing fixed body in the direction of extraction. Along with this movement in the extraction direction, the pressing cam also tries to move, but
Since the pressing cam fixes the engagement protrusion to the inclined groove and prevents movement, movement in the direction of wire removal is prevented.
The pressing cam changes its motion in the rotational direction, and if a strong force in the extraction direction is applied, it will press the fixed body with a proportionally strong pressing force, and the fixed body will strongly press the wire with its large area. .

In addition, even if the electric wire is twisted and force is applied to the inside of the holder, or external force is applied to the holder, if the fitting body is covered and fitted to the outer periphery of both side walls of the holder, the fitting body will be This prevents the wall from expanding and prevents the engaging protrusion engaged with the inclined groove from falling off.

Furthermore, if the fixing body is recessed in an arc shape at the end of the electric wire to form a pressing surface, the fixing area for fixing the electric wire can be increased, and the electric wire can be connected more easily.

In addition, if an uneven biting protrusion is formed on the inner surface of the connecting wall or the pressing surface of the fixing body, the biting protrusion can be made to bite into the electric wire by the pressing force applied to the fixing body, and the electric wire can be pulled out in the extraction direction. Even when a strong tensile force is applied, the wire will not slip against the fixed body or connecting wall.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a holder, and electric wire 2 formed of wire or the like.
Both side walls 3 are provided at intervals that allow insertion and retention of a plurality of
Both side walls 3 are connected by a connecting wall 5 having a protrusion 4 protruding from the inner surface.
are connected to each other, and in both side walls 3, an inclined groove 6 which is inclined in the direction of the connecting wall 5 is formed from one side edge. A pressing cam 7 inserted into this inclined groove 6 between both side walls 3
The engaging protrusion 8 protruding from the side surface is rotatably engaged. The engaging protrusion 8 may be integrally protruded from the side surface of the pressing cam 7, or may be inserted and fixed into the through hole 10 as shown in FIG. Further, a fixing body 11 is formed between the pressing cam 7 and the electric wires 2, which presses and fixes the plurality of electric wires 2 to the inner surface of the holder 1 by the pressing of the pressing cam 7. This fixed body 11 has an arc-shaped end protruding from the end located on the pressing cam 7 side, and is provided with an engaging portion 12, which engages and fixes the pressing cam 7 so as to hold it from both ends. On the wire 2 side, a pressing surface 13 recessed in an arc shape is formed to correspond to the wire 2, and a biting protrusion 4 is formed on this pressing surface 13.
is formed. Further, the fitting body 14 for preventing the expansion of both side walls 3 is formed into a box shape, and this fitting body 14 is
The outer periphery of both side walls 3 of the holding body 1 is covered and fitted.

In the structure as described above, in order to connect the electric wires 2 using the electric wire connector 15, a plurality of electric wires 2 are inserted between the side walls 3 of the holder 1 in an overlapping manner. The pressing cam 7 engages and fixes the fixed body 11.
is inserted between both side walls 3 so that the fixed body 11 is located on the wire side, and the engaging protrusions 8 protruding on both sides are fitted into the inclined split grooves 6, so that the pressing cam 7 is tilted in the direction of the wire 2. It moves and presses the electric wire 2 via the fixed body 11. Further, the electric wire 2 located on the fixed body 11 side needs to be inserted so that the tip end 9 is positioned on the opening side of the inclined groove 6, and the electric wire 2 located on the upper side is inserted into the second As shown in the figure, holding body 1
When it acts in the extraction direction, it simultaneously tries to move the pressing fixed body 11 in the extraction direction. Along with this movement in the extraction direction, the pressing cam 7 also tries to move, but the pressing cam 7 fixes the engagement protrusion 8 to the inclined split groove 6 and is prevented from moving. The pressing cam 7 converts the movement in the direction into the movement in the rotational direction, and if the force in the extraction direction is strong, it presses the fixed body 11 with a proportionally strong pressing force,
The fixed body 11 strongly presses the electric wire 2 with its large area. Also, when the electric wire 2 is twisted and force is applied to the inside of the holder 1, or when an external force is applied to the holder 1, the holder 11 Since the fitting body 14 is covered and fitted to the outer periphery of both side walls 3, the fitting body 14 prevents the both side walls 3 from expanding and prevents the engagement protrusion 8 engaged with the inclined groove 6 from expanding. The connected state of the connected electric wires 2 can be maintained without falling off.

Furthermore, if the fixing body 11 is recessed in an arc shape on the other side of the electric wire 2 to form a pressing surface 13, the fixing area for fixing the electric wire 2 can be increased, and the electric wires 2 can be connected more easily. .

In addition, the inner surface of the connecting wall 5 and the pressing surface 1 of the fixed body 11
By forming an uneven biting protrusion 4 on the wire 3 and causing the biting protrusion 4 to bite into the electric wire 2 by the pressing force applied to the fixed body 11, even when a strong tensile force is applied to the electric wire 2 in the pulling direction. , the electric wire 2 is attached to the fixed body 11 or the connecting wall 5
It is less likely to cause slippage, etc.

Effects of the invention The present invention is constructed as described above. When connecting electric wires, it is possible to perform the connection work in high places with poor footing, without manual labor or detailed work, etc., and it improves work efficiency. The electric wires can be connected reliably. In addition, since the electric wire is pressed by surface contact with the fixed body, a reliable connection is possible, and when the electric wire is pulled in the extraction direction, the pressing cam acts with this pulling force, pressing the electric wire even more strongly. If the extraction force is strong, the pressing force will be proportionally strong, making it possible to reliably prevent extraction. In addition, since the outer periphery of the holder of the connector is covered and fitted with a fitting body, even if the wire is twisted or the connector is subjected to external force, damage to the connector is prevented and the wire does not come off. be.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is an exploded perspective view, and FIG. 2 is a cross-sectional view showing a state in which the electric wire connector is implemented. 1...Holding body, 2...Electric wire, 3...Both side walls, 4
... Biting protrusion, 5 ... Connection wall, 6 ... Inclined groove,
7... Pressing cam, 8... Engaging protrusion, 11... Fixed body, 12... Engaging portion, 13... Pressing surface, 14...
mating body.

Claims (1)

[Claims for Utility Model Registration] (1) A holding body is formed by connecting both side walls with a connecting wall, which are provided at intervals such that a plurality of electric wires can be inserted and held; An inclined groove is formed from one side edge, and engaging protrusions protruding on both sides of the pressing cam are rotatably engaged with the inclined groove, and a plurality of grooves are formed between the pressing cam and the electric wire by pressing the pressing cam. A fixed body is formed to press and fix the electric wire to the inner surface of the holding body, and a fitting body is fitted around the outer periphery of the holding body to prevent the holding body from expanding when the electric wire is pressed by this fixed body. An electric wire connector characterized by: (2) The fixed body is provided with an engaging part by protruding in an arc shape at the end located on the pressing cam side, and this engaging part is engaged and fixed with the pressing cam, and an arc-shaped recess is provided at the end on the electric wire side. Claim 1 characterized in that a pressing surface is formed to provide
Wire connector as described in section. (3) The electric wire connector according to claim 1, characterized in that an uneven bite protrusion is formed on the inner surface of the connecting wall. (4) The electric wire connector according to claim 2, characterized in that the pressing surface is provided with an uneven biting protrusion.