JP2000277206A - Harness plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harness plug capable of coping with rating increase. SOLUTION: In a harness plug, a recess 13 is formed at the front surface of a housing 1 consisting of a body 11 and a cover 12 bonded to each other, and three pieces of plug blades 15 are contained inside the housing 1 so as to project inward of the recess 13. Terminals 17, consisting of a terminal piece 17a and a terminal screw 17b, are contained inside the housing 1. The terminal 17 connected with a core wire of an electric wire 31 has a screw type terminal structure, so that rating increase is dealt with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness plug which is attached to the tip of an electric wire and used with a wiring device such as a joint box on the receiving side for connecting the electric wire by a connector system.

[0002]

2. Description of the Related Art In recent years, in office buildings and the like, a new floor surface is formed at appropriate intervals on a floor surface such as an underfloor slab (hereinafter, the floor thus formed is referred to as a free access floor). ), On a raised floor (ie, the space between the building floor and the newly formed floor)
Floor wiring systems that perform indoor wiring using the grooves provided in the floor are often used. In this floor wiring system, as shown in FIG. 17, a plurality of outlets C are buried on the floor, and wiring devices H and I such as a plurality of outlets are arranged on the floor. Here, the power cords of the wiring devices H and I are drawn under the floor in the demarcation box D. A harness plug A is attached to the end of the power cord of each of the outlet C and the wiring devices H and I, and further branches a joint box BX that branches the main line L0 and a branch line L ′ that is branched by the joint box J. The above-mentioned harness plug A is connected to the joint box BX to freely perform floor wiring (see Japanese Patent Application Laid-Open No. 6-52933). The joint box BX for branching the main line L0 or the branch line L 'includes a power line connecting portion to which the main line L0 or the branch line L' of the power supply is connected in a quick connection manner, and the harness plug A is detachably attached. It has a branch line connection part to be connected. In addition, simply connect the power line to the wiring devices H and I.
For example, when connecting to the power supply line or extending the power line, a harness connector serving as a receiving side of the harness plug A may be attached to the power supply side, and the harness plug A may be attached to the other side.

[0003]

In a conventional harness plug, a so-called quick-connecting terminal portion for holding a power supply line between a locking spring and a terminal plate by a spring force of a locking spring in order to connect an electric wire. However, there is a problem that the quick connection terminal portion cannot cope with an increase in rating.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a harness plug capable of coping with an increase in rating.

[0005]

According to a first aspect of the present invention, in order to achieve the above object, a recess is formed in a front surface of a housing, into which a connection portion of a wiring device on a receiving side is fitted. A plurality of cores of the electric wire are exposed to the distal ends of a plurality of blades respectively connected to the base end, and a wire insertion port for inserting the core of the electric wire is formed at the rear end of the housing. Form a terminal piece electrically connected to the core wire of the electric wire inserted from the insertion port at the base end of each blade,
It is characterized in that these terminal strips are provided with terminal screws for connecting the core wires by tightening the core wires, and it is possible to cope with an increase in rating by tightening the core wires of the electric wires with the terminal screws and connecting to the terminal strips.

According to a second aspect of the present invention, in the first aspect of the present invention, an erroneous connection preventing portion is provided on the inner surface of the concave portion for preventing a reverse connection or connection of a connecting portion of a wiring device having a different rating or use. It is possible to prevent erroneous connection without being connected to a connection part of a wiring instrument having a different rating or a different application from a reverse insertion or a rating.

According to a third aspect of the present invention, in the first aspect of the invention, the housing is divided in half so as to divide the wire insertion opening into two.
It is composed of a pair of halves, and the tip of the wire is drawn into the jacket that is substantially perpendicular to the joining direction of the two halves of the wire drawn out of the housing through the wire insertion port, and the movement of the wire due to the force in the drawing direction is It is characterized in that the tension removing body to be regulated is provided on the inner wall on both sides of the wire insertion port, so that a constant tension removing performance can be obtained even if the diameter of the wire is different, and when joining the two halves, the wire is removed. Since no force is required to press the joint in the joining direction, the joining operation can be easily performed.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the housing is divided in half so as to divide the wire insertion opening into two.
A tension remover that is composed of a pair of halves and holds down the jacket from the joining direction of the two halves of the electric wire drawn out of the housing through the electric wire insertion port and regulates the movement of the electric wire due to the force in the drawing direction It is characterized in that it is provided on both inner walls of the electric wire insertion port, so that tension acting on a plurality of electric wires can be removed.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a display unit for displaying at least information necessary for electric wiring is provided on a side surface of the housing. Information required for electrical wiring, such as data and applications, can be read.

According to a sixth aspect of the present invention, in the first aspect of the present invention, a picture display portion for defining a length dimension with respect to the core wire of the electric wire is provided on a side surface of the housing. Attachment work when attaching is facilitated.

According to a seventh aspect of the present invention, in order to achieve the above object, a concave portion is formed in the front surface of the housing, into which the connecting portion of the wiring device on the receiving side is fitted, and a plurality of core wires of the electric wire are formed in the concave portion. The front ends of the plurality of blades respectively connected to the base end are formed, and a wire insertion port for inserting a core wire of an electric wire is formed at a rear end of the housing, and the wire is inserted from the wire insertion port. Terminal strips that are electrically connected to the core of the electric wire are formed at the base end of each blade, and these terminal strips are equipped with terminal screws that are connected by tightening the core. In addition to providing an erroneous connection prevention portion for preventing connection portions of different wiring devices from being connected, the housing is divided in half by dividing the wire insertion opening into two.
It is composed of a pair of halves, and the tip of the wire is drawn into the jacket that is substantially perpendicular to the joining direction of the two halves of the wire drawn out of the housing through the wire insertion port, and the movement of the wire due to the force in the drawing direction is A tension removing body to be regulated is provided on both inner walls of both sides of the wire insertion port, and a display portion for displaying at least information necessary for electric wiring and a picture display portion for defining a length dimension with respect to a core wire of the wire are provided on a side surface of the housing. It is characterized by being provided, it is possible to cope with an increase in the rating by tightening the core wire of the electric wire with terminal screws and connecting it to the terminal strip, and it is connected reversely or connected to the connection part of wiring equipment with different ratings and uses Without
In addition to preventing erroneous connection, a constant tension removal performance is obtained even when the wire diameter is different.When joining two halves, there is no need to hold down the wire in the joining direction. It can be easily performed, and information necessary for electric wiring, such as the electrical characteristics and use of the harness plug, can be read from the display unit. In addition, the work of attaching the crimp terminal to the core wire becomes easy.

In order to achieve the above object, a recess for fitting a connection portion of a wiring device on the receiving side is formed on the front surface of the housing, and a plurality of core wires of an electric wire are formed in the recess. The front ends of the plurality of blades respectively connected to the base end are formed, and a wire insertion port for inserting a core wire of an electric wire is formed at a rear end of the housing, and the wire is inserted from the wire insertion port. Terminal strips that are electrically connected to the core of the electric wire are formed at the base end of each blade, and these terminal strips are equipped with terminal screws that are connected by tightening the core. In addition to providing an erroneous connection prevention portion for preventing connection portions of different wiring devices from being connected, the housing is divided in half by dividing the wire insertion opening into two.
A tension remover that is composed of a pair of halves and holds down the jacket from the joining direction of the two halves of the electric wire drawn out of the housing through the electric wire insertion port and regulates the movement of the electric wire due to the force in the drawing direction It is provided on the inner wall on both sides of the electric wire insertion port, a display unit for displaying at least information necessary for electric wiring, and a picture display unit for defining a length dimension with respect to the core wire of the electric wire are provided on the side surface of the housing. By tightening the core wire of the electric wire with the terminal screw and connecting it to the terminal strip, it is possible to cope with an increase in the rating. In addition to preventing wire breakage, a constant tension removal performance can be obtained even if the wire diameter is different, the tension acting on multiple wires can be removed, and the electrical characteristics and usage of the harness plug from the display unit can be reduced. Can read the information required for the wiring, moreover it becomes easy attachment work of the case of attaching the crimp terminal to the core wire.

[0013]

(Embodiment 1) A harness plug A of this embodiment will be described in detail with reference to FIGS.

The harness plug A is used in a floor wiring system as described in the prior art, and is attached to a tip of a power cord of wiring devices H and I such as a branch line and an outlet C to branch a main line L0. The BX or the joint box BX that further branches the branch line L ′ branched by the joint box J is connected to a branch line or the above-described power cord to freely perform floor wiring.

The housing 1 of the harness plug A according to the present embodiment has a concave portion 13 on the front surface of which a connection portion 40 of a receiving wiring device (eg, a joint box BX or the like) is fitted.
Are formed, and three blades 15 protrude inside the recess 13. As shown in FIG. 1, the housing 1 includes a body 11 and a cover 12 made of a synthetic resin. The body 11 and the cover 12 have a box shape with one of the front and rear portions and the upper and lower surfaces opened. .

The interior of the body 11 is separated into a front and a rear storage space by a partition wall 20, and a recess 13 is formed by a front recess 14.
Is formed. The partition wall 20 is formed with three fixing grooves 16 for press-fitting and fixing the three blades 15.
Is press-fitted into the fixing groove 16, and the tip of the blade 15 is arranged in parallel in the recess 14. Two partitions 18 running in the vertical direction are formed from the back of the partition 20, and the front part of the rear storage chamber is divided into three sections, and the rear end of the blade 15 is housed in this separated section. Can be At the rear end of the body 11, a recess 21a forming an electric wire insertion port 21 is formed.

As a means for removing the tension of the electric wire 31, one end is removably press-fitted into vertical grooves 50 formed on both side walls of the recess 21a so that the upper surface of the body 11 and the inner wall surface of the recess 21a are open. , A pair of tension removers 51 made of a resin molded product with the other end protruding into the recess 21a.
At one end of the tension removing member 51, vertical uneven portions 51a are formed on both side surfaces so as to be press-fitted and fixed in the vertical groove 50, and the portion projecting from the vertical groove 50 has elasticity and the electric wire 31 The hooks 51b are inclined in the insertion direction and protrude into the recesses 21a, and the leading ends thereof are formed with hooking claws 51b that bite into the jacket of the electric wires 31 when the electric wires 31 are pulled in the drawing direction.

The cover 12 has an internal structure of the body 11.
And a recess 14 of the body 11,
The recesses 27 formed corresponding to the recesses 14 form the recesses 13 for fitting the connection portions 40 of the joint box BX, and the sections into which the respective blades 15 of the body 11 are inserted and the sections corresponding to the sections. Blade 1 by the section formed
5 is formed, a recess 21a of the body 11 and
The wire insertion port 21 is constituted by the recess 21b formed corresponding to the recess 21a. A vertical groove 49 for press-fitting and fixing the upper end of the other end of the tension removing body 51 protruding from the upper surface opening of the vertical groove 50 is formed on both side walls of the recess 21b so as to correspond to the upper surface opening of the vertical groove 50. .

At four positions on both sides of the cover 12, through holes 23 for passing assembly screws 24 are formed. The assembly screws 24 are formed in the body 11 so as to communicate with the insertion holes 23 and the insertion holes 23. Screwed into the screw hole 26
Is adhered to the body 11, and at this time, the blade 15 and the tension removing body 51 are completely fixed. At this time, the recess 21
a hook 5 at one end of each of the tension removing bodies 51 on both sides protruding into
1b comes into elastic contact with both sides of the jacket of the electric wire 31 perpendicular to the joining direction of the body 11 and the cover 12, and FIG.
Also, as shown in FIG. 7, even if the diameter of the electric wire 31 is different, it can be absorbed by elasticity, so that it is possible to correspond to a different electric wire 31. When the electric wire 31 is pulled in the drawing direction in this state, the hook 51b digs into the jacket of the electric wire 31, restricts the movement of the electric wire 31 in the drawing direction, and removes the tension applied to the electric wire 31.

On the upper bottom surface of the concave portion 14 of the body 11, a ridge 25 running in the vertical direction is formed to fit into a concave groove 42 formed on the outer surface of the connecting portion 40 of the joint box BX. Reverse insertion of the BX with the connecting portion 40 is prevented.

A partition 43 corresponding to the partition 20 of the body 11 is formed on the cover 12.
The joint between the 43 fixing grooves 16 is formed in an uneven fitting shape. That is, as shown in FIG.
A step is formed between the 0, 43 fixing grooves 16, and the recesses and the protrusions are formed in such a shape as to fit each other. By doing so, the creepage distance between the fixing grooves 16 of the partition walls 20 and 43 can be increased in the portion where the step is formed, and the insulation distance between the blades 15 can be increased. Can be absorbed, so that there is no gap between the joints, and therefore, insulation failure can be reduced.

Each blade 15 is formed of a flat conductive member. A terminal screw 17 is provided at the base end of these blades 15.
A terminal piece 17a provided with a screw hole into which b is screwed is formed integrally with the terminal piece 17a, and the terminal piece 17 is constituted by the terminal piece 17a and the terminal screw 17b. Then, a core wire of a three-core electric wire (for example, an electric wire having a cross section of ² to 3.5 mm ² of a vinyl cabtire (VCT) cable) 31 having a ground wire is crimped to a crimp terminal (not shown), and the crimp is performed. Connect the terminal to terminal screw 1
At 7b, it is fastened to the terminal piece 17a and connected to the terminal portion 17. A terminal piece 17c is provided at its end with a holding piece 17c having a bifurcated tip, and a rib protruding from the body 11 corresponding to the holding piece 17c is provided on the opposite inner end of the holding piece 17c. By press-fitting into the claws provided in the above, the blades 15 are respectively arranged in parallel in the respective sections together with the press-fitting into the fixing grooves 16. At the end of each section on the side of the electric wire insertion port 21, a mounting table 19 on which the electric wire 31 is mounted is protruded.

Thus, the terminal strip 17a and the terminal screw 17b
Thus, the screw-type terminal portion 17 is formed, and by increasing the terminal portion 17 to which the core wire of the electric wire 31 is connected to the screw-type terminal structure, it is possible to cope with an increase in rating. On the side surface of the housing 1 (the surface of the cover 12), as shown in FIG. 4, a picture display section (so-called strip) for defining the length of the core wire to be stripped and exposed when the core wire is crimped to the crimp terminal. gauge)
22 are provided. That is, when the core wire of the electric wire 31 is crimped to the crimp terminal, the wire 31
By stripping the cover, the operation of crimping the core wire to the crimp terminal can be easily performed.

By the way, in the case of the present embodiment, as shown in FIG.
It is shifted so that it protrudes forward.
In this manner, the amount of protrusion of the blade 15 as a ground electrode increases, and the harness plug A is connected to the joint box B.
It is possible to prevent only the blade 15 other than the blade 15 serving as the ground electrode from being connected to the connection portion 40 when attaching / detaching to / from the X connection portion 40. That is, when connecting the harness plug A to the connection portion 40, when another blade 15 is connected to the connection portion 40, the blade 15 as a ground electrode is always connected before the other blade 15, and conversely, the harness plug A Is removed from the connecting portion 40, the other blade 15 is removed from the connecting portion 40, and then the blade 15 as a ground electrode is removed. Therefore, even if there is a short circuit, there is no electric shock.

On the upper surface of the body 11, a lock body 28 for fixing the connection state with the connection portion 40 of the joint box BX is provided.
Is attached. The lock body 28 is formed of a flexible material such as a synthetic resin, has a ridge-shaped claw 30 running in the lateral direction on the lower surface of the leading edge, and has a cross-sectional shape projected from the center of the lower surface. Two fixed pieces 33 elastically locked to the body 11 on the lower surface of the horizontal piece of the L-shaped elastic piece 32
Has been erected. A non-slip 34 formed of a plurality of laterally running ridges is formed on an upper surface operated by a finger when the lock body 28 is released.

Body 11 to which lock body 28 is attached
In the mounting portion 29, an opening 36 communicating with the recess 14 is formed at a portion corresponding to the claw 30 of the lock body 28, and a mounting recess 37 for mounting the elastic piece 32 is formed at the rear of the opening 36. An insertion hole 39 for inserting the fixing piece 33 is formed in the mounting recess 37. Further, a recess 38 is formed in the rear portion of the mounting recess 37 so that a finger can enter when the upper surface of the lock body 28 is pressed by the finger.

The attachment of the lock body 28 to the attachment portion 29 is performed as follows. First, the fixing piece 33 of the lock body 28 is inserted into the insertion hole 39, and then the elastic piece 32 is attached to the mounting recess 3 by the rear end face.
When it is mounted on the mounting recess 37 so as to be locked to the step behind the 7, the claw formed on the front surface below the fixing piece 33 is locked to the opening edge inside the insertion hole 39. Thereby, it is fixed to the body 11 as shown in FIG. Here, in the case of the present embodiment, the distance between the rear end face of the elastic piece 32 and the fixed piece 33 is larger than the distance between the step at the rear end of the mounting recess 37 and the opening edge on the front side of the insertion hole 39. The distance from the front surface of the base to the front surface is slightly increased, and a forward elastic force is applied to the horizontal piece of the elastic piece 32 by the step portion of the mounting recess 37 so that the fixing piece 33 is securely locked. It is.

By the way, the side surface of the housing 1 (the body 1
Labels 45 and 46 serving as display portions for displaying at least information necessary for electric wiring are attached to the first surface). On one label 45, each blade 1 of the harness plug A is attached.
The polarity and the like of No. 5 are described, and are attached to the surface of the body 11 near the concave portion 13. The other label 46 indicates the rating of the harness plug A, and is attached to the surface of the body 11 near the wire insertion port 21. Since the labels 45 and 46 on which information necessary for electric wiring and the like are written are attached to the housing 1 of the harness plug A in this manner, the labels 45 and 46 indicate the electrical characteristics of the harness plug A, such as the electrical characteristics and applications. Information necessary for wiring can be read.

When connecting the harness plug A of the present embodiment configured as described above to the connection portion 40 of the branch joint box BX as shown in FIG. When the harness plug A is pressed against the connection portion 40 with the position of the joint box BX inserted, the blade 15 of the harness plug A is inserted into the blade insertion hole 41 formed on the front end surface of the connection portion 40. The blade 15 is brought into contact with the blade receiving spring provided inside the connection portion 40 to perform connection.

Then, the connecting portion 40 is connected to the harness plug A.
Is completely pressed into the concave portion 13 of the lock member 28, the claw 30 of the lock body 28 is engaged with the concave ridge 44 formed on the outer surface of the connection portion 40,
The removal of the harness plug A is prevented. When removing the harness plug A from the connection portion 40, the rear end of the lock body 28 is pushed into the recess 38 so that the lock body 28
Is rotated around the base end of the joint box BX as a fulcrum, and the locked state of the claw 30 with the concave streak 44 is released. At this time, if the harness plug A is pulled backward, the harness plug A can be removed from the connection portion 40 of the joint box BX. Note that the wiring device on the receiving side is not limited to the joint box BX, and a harness plug A can be connected to any wiring device having a connection portion similar to the connection portion 40 described above.

When wiring is performed by connecting the harness plug A to the joint box BX on a free access floor as shown in FIG. 17, a device which receives power supply via the harness plug A and a power supply to be connected thereto Since there are various combinations with the road depending on the type, purpose, and the like, if the pitch of the plug blades 15 of the harness plug A, the shape of the housing 1, and the like are formed with the same size and the like, erroneous connection and the like may occur. . Therefore, in the present invention, a single groove 42 running along the direction of insertion of the harness plug A is formed on the upper surface of the connection portion 40, and the protrusion 25 as an erroneous connection prevention portion that fits into the groove 42 is formed. It is formed on the inner surface of the concave portion of the harness plug A, and prevents the harness plug A from being reversely inserted or erroneously connected to the joint box BX having a different rating or application due to fitting of the concave groove 42 and the ridge 25. I have. For example, in the case of a grounding two-pin having a rating of 20 A / 125 V, as shown in FIGS. 9A and 9B, two protrusions 25 are formed on the inner surface of the recess 13 of the harness plug A. On the other hand, three blade insertion holes 41 into which the three blades 15 are respectively inserted are provided on the front surface of the connection portion 40 of the joint box BX, and two protrusions 25 are fitted on the upper surface, respectively. Two concave grooves 42 are formed. In the case of a grounding 2-pin having a rating of 26 A (or 32 A) / 250 V, as shown in FIGS. 10A and 10B, in the harness plug A, one protruding ridge 25 is formed on the inner surface of the concave portion 13. At the connection portion 40 of the joint box BX, a concave groove 42 into which the ridge 25 is fitted is formed on the upper surface. That is,
Since the numbers and positions of the ridges 25 and the concave grooves 42 differ depending on the rating, the harness plug A having a different rating and the joint box BX are not erroneously connected.

(Embodiment 2) As shown in FIGS. 11 to 16, the basic configuration of the harness plug A of this embodiment is the same as that of the first embodiment. The description will be omitted, and only the configuration that is a feature of the present embodiment will be described.

In the present embodiment, an electric wire (for example, an IV having a cross-sectional area of 4.0 mm ²⁾ formed in a strip shape by an elastic member and connected to each terminal portion 17 from the joining direction of the body 11 and the cover 12. It is characterized in that a pair of tension removing members 52, 52 for holding down the jacket of the line 35 is provided. As shown in FIG. 13, the tension removing member 52 is bent so that the central portion 52a protrudes in the insertion direction of the electric wire 35, and both ends 52b, 52b are formed in the vertical grooves 5 of the body 11 and the cover 12.
It is press-fitted and fixed to 0,49.

When the housing 1 is assembled by joining the body 11 and the cover 12, as shown in FIG.
The wire 35 elastically contacts both sides of the jacket of the three wires 35 perpendicular to the joining direction of the wires 35, thereby restricting the movement of the wires 35 even if the wires 35 are pulled in the anti-insertion direction, and reducing the tension applied to the wires 35. It can be removed. Moreover, in the present embodiment, since all the components other than the tension removing members 52, 52 are common to the first embodiment, the electric wires 31, 35 such as the VCT line and the IV line can be obtained simply by replacing the tension removing members 51, 52.
There is an advantage that the production cost can be reduced by sharing parts.

[0035]

According to the first aspect of the present invention, a concave portion is formed in the front surface of the housing, into which the connecting portion of the wiring device on the receiving side is fitted, and a plurality of core wires of the electric wire are respectively provided in the concave portion at the base end portion. At the rear end of the housing, a wire insertion port for inserting a core wire of an electric wire is formed, with the front ends of the plurality of connected blades facing each other. Is formed at the base end of each blade, and a terminal screw is provided for tightening and connecting the core wire to these terminal pieces, so that the core wire of the electric wire is tightened with the terminal screw. Has an effect that it is possible to cope with an increase in rating.

According to the second aspect of the present invention, an incorrect connection preventing portion is provided on the inner surface of the concave portion to prevent a connection portion of a wiring device having a different rating or application from being connected. There is an effect that erroneous connection can be prevented without being connected to a connection portion of a different wiring device.

According to a third aspect of the present invention, the housing is constituted by a pair of halves which halve the electric wire insertion opening so as to divide the electric wire insertion opening into two, and the two halves of the electric wire drawn out of the housing through the electric wire insertion opening are divided. Let the tip bite into the jacket which is almost perpendicular to the joining direction of the body,
Since tension removers that regulate the movement of the wire due to the force in the drawing direction are provided on the inner walls on both sides of the wire insertion port, a constant tension removal performance can be obtained even if the wire diameter is different. At the time of joining, there is no need to press the electric wire in the joining direction, so that the joining operation can be easily performed.

According to a fourth aspect of the present invention, the housing is constituted by a pair of halves which divide the wire insertion opening into two parts, and the two halves of the wire drawn out of the housing through the wire insertion hole are divided. Since tension removers are provided on the inner walls on both sides of the wire insertion port to control the movement of the wires due to the force in the pull-out direction by holding down the jacket from the joining direction of the body, it is possible to remove the tension acting on multiple wires. effective.

According to the fifth aspect of the present invention, at least a display portion for displaying information necessary for electric wiring is provided on a side surface of the housing, so that information necessary for electric wiring such as electric characteristics and use of the harness plug is provided from the display portion. There is an effect that it can be read.

According to the sixth aspect of the present invention, since the picture display portion for defining the length dimension with respect to the core wire of the electric wire is provided on the side surface of the housing, the work of attaching the crimp terminal to the core wire is facilitated. It has the effect of becoming.

According to a seventh aspect of the present invention, a recess is formed in the front surface of the housing, into which the connection portion of the wiring device on the receiving side is fitted, and a plurality of core wires of the electric wires are respectively connected to the base end in the recess. Facing the tips of multiple blades,
At the rear end of the housing, an electric wire insertion port for inserting the core wire of the electric wire is formed, and a terminal piece electrically connected to the core wire of the electric wire inserted from the electric wire insertion port is formed at the base end of each blade. A terminal screw for tightening and connecting the core wire to these terminal pieces is provided, and an incorrect connection prevention portion is provided on the inner surface of the recess to prevent reverse connection or connection of a wiring device having a different rating or application from being connected. The housing is composed of a pair of halves, each of which halves the housing so as to divide the wire insertion opening into two, and the jacket is substantially orthogonal to the joining direction of the two halves of the electric wire drawn out of the housing through the wire insertion opening. A tension remover that regulates the movement of the electric wire due to the force in the pullout direction is provided on the inner wall on both sides of the electric wire insertion port, and a display unit that displays at least information necessary for electric wiring, Picture table that defines length dimensions Is provided on the side of the housing, so it is possible to cope with an increase in the rating by tightening the core wire of the electric wire with the terminal screw and connecting it to the terminal strip. To prevent erroneous connection, achieve constant tension removal performance even if the wire diameter is different, and force to hold the wire in the joining direction when joining the two halves. Is required, so that joining work can be easily performed, and information required for electrical wiring, such as the electrical characteristics and application of the harness plug, can be read from the display unit.Furthermore, attachment when crimping terminals are attached to the core wire There is an effect that work becomes easy.

According to the eighth aspect of the present invention, a recess is formed in the front surface of the housing, into which the connection portion of the wiring device on the receiving side is fitted, and a plurality of core wires of the electric wires are respectively connected to the base end in the recess. Facing the tips of multiple blades,
At the rear end of the housing, an electric wire insertion port for inserting the core wire of the electric wire is formed, and a terminal piece electrically connected to the core wire of the electric wire inserted from the electric wire insertion port is formed at the base end of each blade. A terminal screw for tightening and connecting the core wire to these terminal pieces is provided, and an incorrect connection prevention portion is provided on the inner surface of the recess to prevent reverse connection or connection of a wiring device having a different rating or application from being connected. The housing is made up of a pair of halves that divide the wire insertion opening into two parts, and the jacket is pressed down from the joining direction of the two halves of the electric wire drawn out of the housing through the wire insertion opening. A tension remover that regulates the movement of the electric wire due to the force in the drawing direction is provided on the inner wall on both sides of the electric wire insertion port, and a display unit that displays at least information necessary for electric wiring and a length dimension with respect to the core wire of the electric wire are defined. Picture display Since the cable is provided on the side of the cable, the core of the wire can be tightened with the terminal screw and connected to the terminal strip to cope with an increase in the rating. In addition to being able to prevent incorrect connection, a constant tension removal performance can be obtained even if the wire diameter is different, the tension that acts on multiple wires can be removed, and the display of the harness plug can be removed from the display. It is possible to read information necessary for electric wiring such as physical characteristics and applications, and it is also advantageous in that the work of attaching the crimp terminal to the core wire becomes easy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment.

2A and 2B show the same as above, wherein FIG. 2A is a plan view as viewed from a body side, FIG. 2B is a front view, FIG. 2C is a rear view, and FIG.

FIG. 3 is a plan view showing a state in which the cover is removed.

FIG. 4 is a plan view of the same as seen from the cover side.

FIG. 5 is a perspective view of the same.

FIG. 6 is a rear view of the same.

FIG. 7 is a rear view of the same.

FIG. 8 is a perspective view showing a use state of the above.

FIGS. 9A and 9B show a harness plug preventing incorrect connection in the above, wherein FIG. 9A is a front view of the harness plug, and FIG. 9B is an enlarged view of a connection portion of the joint box.

10A and 10B show a harness plug erroneous connection preventing portion in the same as above, FIG. 10A is a front view of the harness plug, and FIG. 10B is an enlarged view of a joint portion of the joint box.

FIG. 11 is an exploded perspective view showing the second embodiment.

12A and 12B show the same as above, wherein FIG. 12A is a plan view as viewed from the body side, FIG. 12B is a front view, FIG. 12C is a rear view, and FIG. 12D is a side sectional view.

FIG. 13 is a plan view showing a state in which the cover is removed.

FIG. 14 is a plan view as seen from the cover side of the same.

FIG. 15 is a perspective view of the same.

FIG. 16 is a rear view of the above.

FIG. 17 is an explanatory diagram for explaining a conventional floor wiring system.

[Explanation of symbols]

 A harness plug 1 housing 11 body 12 cover 15 blade 17 terminal part 17a terminal strip 17b terminal screw

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshimitsu Tsukawaki 1285 Gomono, Misato-mura, Aki-gun, Mie Prefecture F-term in Hayama Denki Mfg. Co., Ltd. 5E021 FA05 FA14 FB07 FC02 FC31 FC38 FC40 GB20 HC12 JA11 5E087 EE02 EE14 FF02 FF16 GG06 HH04 JJ05 MM05 MM12 QQ06 RR25 RR26 RR42 RR49

Claims (8)

[Claims] 1. A plurality of plugs, each having a recess into which a connection portion of a wiring device on the receiving side is fitted is formed on a front surface of a housing, and a plurality of core wires of an electric wire are respectively connected to a base end in the recess. At the rear end of the housing, a wire insertion hole for inserting the core wire of the wire is formed, and the terminal piece electrically connected to the core wire of the wire inserted from the wire insertion hole is formed. A harness plug comprising terminal screws formed at the base end of each plug blade and connecting these terminal pieces by tightening a core wire. 2. The harness plug according to claim 1, further comprising an erroneous connection preventing portion provided on an inner surface of the concave portion for preventing a connection portion of a wiring device having a different rating or a different application from being connected. 3. The housing is composed of a pair of halves, each of which is divided in half so as to divide the electric wire insertion opening into two, and is connected in the joining direction of the two halves of the electric wire drawn out of the housing through the electric wire insertion opening. 2. The harness plug according to claim 1, wherein a tension removing body is formed on both inner walls of the wire insertion port, the tip of which is bitten into a jacket which is substantially perpendicular to the wire, and which controls the movement of the wire due to the force in the drawing direction. 4. The housing is constituted by a pair of halves in which the electric wire insertion opening is divided into two parts, and the electric wire drawn out of the housing through the electric wire insertion opening is viewed from the joining direction of the two halves of the electric wire. 2. The harness plug according to claim 1, wherein tension removing members for holding down the outer cover and restricting the movement of the electric wire due to the force in the drawing direction are provided on the inner walls on both sides of the electric wire insertion port. 5. The harness plug according to claim 1, wherein a display portion for displaying at least information necessary for electric wiring is provided on a side surface of the housing. 6. The harness plug according to claim 1, wherein a picture display portion for defining a length dimension with respect to a core wire of the electric wire is provided on a side surface of the housing. 7. A plurality of plugs each having a recess formed in a front surface of the housing, into which a connection portion of a wiring device on a receiving side is fitted, and a plurality of core wires of an electric wire respectively connected to a base end in the recess. At the rear end of the housing, a wire insertion hole for inserting the core wire of the wire is formed, and the terminal piece electrically connected to the core wire of the wire inserted from the wire insertion hole is formed. Formed at the base end of each blade, and equipped with terminal screws for tightening the core wire to these terminal strips to prevent reverse connection or connection of wiring equipment with different ratings and applications to the inner surface of the recess A pair of halves, each of which halves the housing so as to divide the wire insertion opening into two, and halves of the electric wire drawn out of the housing through the wire insertion opening. To the jacket that is approximately perpendicular to the joining direction A tension remover that regulates the movement of the wire due to the bite and the force in the pullout direction is provided on the inner wall on both sides of the wire insertion port, a display unit that displays at least information necessary for electrical wiring, and a length dimension relative to the core wire of the wire A picture display portion defining the following is provided on a side surface of the housing. 8. A plurality of plugs each having a recess formed in a front surface of the housing, into which a connection portion of a wiring device on a receiving side is fitted, and a plurality of core wires of an electric wire respectively connected to a base end in the recess. At the rear end of the housing, a wire insertion hole for inserting the core wire of the wire is formed, and the terminal piece electrically connected to the core wire of the wire inserted from the wire insertion hole is formed. Formed at the base end of each blade, and equipped with terminal screws for tightening the core wire to these terminal strips to prevent reverse connection or connection of wiring equipment with different ratings and applications to the inner surface of the recess A pair of halves, each of which halves the housing so as to divide the wire insertion opening into two, and halves of the electric wire drawn out of the housing through the wire insertion opening. Hold down the jacket from the joining direction of A tension remover that regulates the movement of the electric wire due to the force in the output direction is provided on the inner wall on both sides of the electric wire insertion port, and a display unit that displays at least information necessary for electric wiring and a length dimension with respect to the core wire of the electric wire are defined. A harness plug, wherein a picture display section is provided on a side surface of a housing.