JPH0320032B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a wiring device, and particularly to a wiring device for connecting electric wires wired on a floor or wall surface to each other.

(Prior Art) In general, in wiring devices that connect electric wires that are wired on the floor or wall, it is necessary to make the connected wires run as close to the floor or wall as possible, so conventional wiring devices are As shown in the figure, a lower case 2 is attached to both end surfaces of an upper case 1 forming a wiring device.
A protrusion 3 facing the side is provided vertically, and a recess 4 into which the protrusion 3 fits is formed on both end surfaces of the lower case 2, and a wire insertion hole 5 is provided between the protrusion 3 and the recess 4. By forming the electric wire insertion hole 5, a structure is adopted in which the wire insertion hole 5 is placed as close as possible to the floor surface or wall surface.

(Problems to be Solved by the Invention) However, in the wiring device having the conventional structure as shown in FIG. 6, moldability is poor due to the protrusions 3 on both sides of the upper case 1, and so-called chipping occurs during molding. There is also a risk that the protrusion 3 may break off when the upper case 1 is being transported. Furthermore, since the lower case 2 has a recess 4, deformation is likely to occur on both sides of the recess 4 during molding, and since the upper and lower cases 1 and 2 are molded using a molding die with upper and lower holes, The electric wire insertion hole 5
There was a problem in that it was not possible to integrally display characters or symbols by molding on the nearby side surface.

The present invention has been developed in view of these problems, and allows the wire insertion hole to be formed as close to the floor as possible without providing a protrusion unlike conventional wiring devices. The purpose of the present invention is to provide a wiring device that can also be labeled with the following.

[Structure of the invention]

(Means for Solving the Problems) The wiring device of the present invention has an electric wire insertion hole formed on at least one end surface side of the device main body case, and
In the wiring device, in which at least one connection terminal is provided in the device body case, the device body case includes a terminal that holds the connection terminal therein. A wire insertion window is formed on at least one end surface of the holding part, and a wire insertion window is formed on the inner peripheral part of the wire insertion window from the inside to the outside facing the wire connection part of the connecting terminal held in the terminal holding part. A spacer is fitted into the wire insertion window of the instrument main body case, and a recess that communicates from the inside to the outer surface is formed on the circumferential surface of this space, facing the recess of the instrument main body case, and this The recess of the spacer and the recess of the main body case form the wire insertion hole through which the wire connected to the wire connection portion of the connection terminal is inserted.

(Function) The wiring device of the present invention provides a spacer separate from the device body case in the device body case, and by fitting this spacer into the wire insertion window of the device body case, An electric wire is connected to an electric wire connecting part of a connecting terminal held inside the device body case by a recess formed on the inner circumference of the spacer and a recess formed on the circumferential surface of the spacer that communicates from the inside to the outer surface. The wire insertion hole is formed to be inserted through the wire, and the wire insertion hole is brought close to the floor or wall side so that the wire can be wired close to the floor or wall. Sometimes, letters or the like can be added near the portion where the wire insertion hole is formed.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5.

A main body case 13 in the form of a housing is formed by an upper case 11 and a lower case 12 molded from synthetic resin. Since the upper case 11 and the lower case 12 are formed in a symmetrical shape, only the lower case 12 will be explained here, and the upper case 11 has the same parts as the lower case 12. Reference numerals are given and explanations thereof are omitted.
The lower case 12 has an open upper surface and has electric wire insertion windows 14 formed on both left and right end faces of a size that opens substantially the entirety of the left and right end faces.

As shown in FIG. 2, two pillars 15 are erected approximately in the center of the inner bottom surface of the lower case 12, and are arranged in the width direction of the lower case 12. Between the pillars 15 and these two pillars 1
Terminal holding portions 18 are formed in three spaces between the terminal holder 5 and both side walls 16 and 17, respectively. Furthermore, unlock push button mounting windows 19 are formed on the bottom surfaces of both left and right sides of each of the pillars 15, and in these unlock push button mounting windows 19, as shown in FIG.
is attached rotatably around the fulcrum portion 21.

Furthermore, three wire insertion holes 22 are provided on the inner bottom surface of the inner periphery of the wire insertion window 14 adjacent to the unlock push button mounting window 19 and facing the three terminal holding portions 18.
A recess 23 leading from the inside to the outside to form a
Three of them are arranged in parallel at intervals in the width direction of the lower case 12.

Further, both side walls 16 and 17 of the lower case 12
A screw mounting hole 24 for connecting the upper case 11 and the lower case 12 is provided in the upper case 11 and the lower case 12.

Each terminal holding portion 1 of the lower case 12
Three connection terminals 31 are held astride the terminal holding portions 18 of the upper case 11 and the terminal holding portions 18 of the upper case 11. Each of the connection terminals 31 is formed of a metal terminal plate 32 and four self-locking terminal pieces 33 that are attached to the terminal plate 32 and are made of metal leaf springs, and the terminal plate 32 is arranged in the vertical direction. The terminal piece mounting recess 34 has a substantially U-shaped cross section and is bent at its vertical midpoint and opened on opposite sides at the upper and lower parts.
a, 34b. The upper terminal piece mounting recess 34a and the lower terminal piece mounting recess 34b are each partitioned into left and right by a partition plate 35 formed by cutting and bending in the middle, and the upper terminal piece mounting recess 34a and the lower terminal The two self-locking terminal pieces 33 are attached to each of the piece attachment recesses 34b. Furthermore, engaging protrusions 36 are provided on both sides of the upper and lower parts of the terminal plate 32, respectively.

Further, the self-locking terminal piece 33 is connected to the terminal plate 32.
located at the end of the upper terminal piece mounting recess 34a or the upper surface 37 of the lower terminal piece mounting recess 34b.
A locking piece 39 is bent so as to face the lower side 38 of the terminal board 38 and tilt toward the center of the terminal board 32, and its tip abuts the unlock push button 20. Subsequently, it is bent and extends along the lower surface 40 of the upper terminal piece mounting recess 34a or the upper surface 41 of the lower terminal piece mounting recess 34b to the partition plate 35, and then reversely bent and the locking piece 39 side, and a holding piece 42 that is inverted and bent again on the way. Then, the locking piece 39 and the upper terminal piece mounting recess 34a upper surface 3
7 or the lower surface 38 of the lower terminal piece mounting recess 34b, wire connecting portions 43 are formed, and these wire connecting portions 43 are formed at a total of four locations on both upper and lower sides of the connecting terminal 31.

The connection terminal 31 inside the main body case 13
The upper case 11 and the lower case 12 are installed at both ends of the
A spacer 51 is provided which is fitted and held between the two. Each of the spacers 51 includes an upper spacer 52 fitted into the wire insertion window 14 of the upper case 11 and an electric wire insertion window 1 of the lower case 12.
The upper spacer 52 and the lower spacer 53 are both molded from synthetic resin, and are positioned so that they fit into each other on their joint surfaces. It has a protrusion 54 and a positioning recess 55.

Further, the upper case 11 of the upper spacer 52
Three recesses 56 facing the three recesses 23 on the inner bottom surface of the inner periphery of the upper case 11 are formed on the surface opposite to the inner bottom surface of the inner periphery of the electric wire insertion window 14 . At the same time, the surface of the lower spacer 53 facing the inner bottom surface of the inner periphery of the wire insertion window 14 of the lower case 12 is also covered with the lower case 12.
Three recesses 56 facing the three recesses 23 on the inner bottom surface are formed extending from the inside to the outside. The recesses 23 of the upper case 11 and the lower case 12, the upper spacer 52, and the lower spacer 5
A wire insertion hole 22 is formed in each of the three recesses 56 . In addition, upper and lower spacers 52, 5
Upper and lower spacers 5 are provided in the vicinity of the wire insertion hole 22 on the surface facing the wire insertion window 14 of No. 3.
Indications such as symbols formed integrally during molding of 2 and 53 are attached.

Furthermore, three engagement grooves 57 are provided on the surfaces of the upper and lower spacers 52 and 53 on the connection terminal 31 side, which engage with the engagement protrusions 36 on both sides of each terminal plate 37, respectively.

Next, the operation of this embodiment will be explained.

When connecting the connecting wire and the connected wire wired on the floor using this wiring device, for example,
With the lower case 12 facing the floor or wall, insert the connecting wire into the wire insertion hole 22 formed by the recess 23 of the wire insertion window 14 on the left side of the lower case 12 and the recess 56 of the lower spacer 53. Insert. On this occasion,
Insert the connecting wire while confirming which wire is to be inserted into which wire insertion hole 22 by the markings attached to the lower spacer 53. By inserting this electric wire, the locking piece 39 forming the electric wire connecting part 43 at the lower left end of the connecting terminal 31 is pushed, and the locking piece 39 forming the electric wire connecting part 43 at the lower left end of the connecting terminal 31 is pushed, and the locking piece 39 forming the electric wire connecting part 43 at the lower left end of the connecting terminal 31 is pressed, and the locking piece 39 forming the electric wire connecting part 43 at the lower left end of the connecting terminal 31 is pushed, and the locking piece 39 forming the electric wire connecting part 43 at the lower left end of the connecting terminal 31 is pushed. The gap widens, and the electric wire is inserted into this gap. Once inserted, the electric wire is clamped by the biasing force of the locking piece 39, so that the electric wire will not come off from the electric wire connection portion 43 even if the electric wire is pulled.

Also, connect the wires to be connected to the recess 23 of the wire insertion window 14 on the right side of the lower case 12 and the lower spacer 53.
The wire connection portion 43 at the lower right end of the connection terminal 31 is inserted through the wire insertion hole 22 formed in the recess 56 of
Connect to.

Furthermore, when the unlock push button 20 is pressed to disconnect these wires, the lock piece 39 is pushed by the unlock push button 20, and the lower surface 38 of the lower terminal piece mounting recess 34b is pressed.
The gap between the two will widen, allowing you to pull out the wire and remove it.

In addition, when connecting the connecting side electric wire and the connected side electric wire wired on the floor or wall surface with this wiring device, place the upper case 11 on the floor or wall side,
Insert the connecting wire and the wire to be connected through the wire insertion holes 22 at both left and right ends of the upper case 11, and connect the wire connecting portions 43 at both upper ends of the connecting terminal 31.
May be connected to.

If you connect the wires in this way, the wires on the connecting side and the wires on the connected side will be installed along the floor in any case, so these wires can be connected from the floor or wall at the wiring device. It won't surface.

In this embodiment, the wire insertion hole 22 is formed between the spacer 51 and both the upper and lower cases 11 and 12, but as a wiring device, one of the upper and lower cases 11 and 12 is used. An electric wire insertion hole 22 may be formed between the two.

In addition, there is a wire insertion hole 22 only on one side of the main body case.
It is also possible to form a container and attach it to a wall to use it as a conduit.

〔Effect of the invention〕

According to the present invention, a separate spacer that is fitted into the main body case is provided, and the electric wire insertion hole is formed between the spacer and the main body case, so that the uneven portion for forming the electric wire insertion hole in the main body case is provided. There is no need to form a
No chips or other deformations occur.

Furthermore, since the spacer can be molded separately, it is easy to integrally form letters, symbols, etc. near the portion that will become the wire insertion hole during molding.

Furthermore, since the spacers are separate, products with various indications can be made by forming them with various indications.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view showing one embodiment of the wiring device of the present invention, Fig. 2 is a plan view of its lower case, Fig. 3 is a side view of the lower case housing a lower spacer, and Fig. 4 is a side view of the lower case housing the lower spacer. 5 is a perspective view of a lower spacer and a terminal board, and FIG. 6 is a side view of a conventional wiring device. 13... Instrument body case, 14... Wire insertion window, 18... Terminal holding portion, 22... Wire insertion hole, 23... Recess, 31... Connection terminal, 43...
Wire connection portion, 51...spacer, 56...recess.

Claims (1)

[Scope of Claims] 1. An electric wire insertion hole is formed in at least one end surface side of the instrument main body case, and at least a connection terminal provided with an electric wire connection part corresponding to each of the electric wire insertion holes is provided in the instrument main body case. In the wiring device provided with one wiring device, the device main body case has a terminal holding portion for holding the connection terminal therein, and an electric wire insertion window is opened in at least one end surface, and the inner periphery of the electric wire insertion window is opened. forming a recessed portion facing the wire connecting portion of the connecting terminal held in the terminal holding portion and communicating from the inside to the outer surface; fitting a spacer into the wire insertion window of the device main body case; A recessed portion facing the recessed portion of the device main body case and communicating from the inside to the outer surface is formed on the peripheral surface, and an electric wire to be connected to the electric wire connection portion of the connection terminal is inserted through the recessed portion of the spacer and the recessed portion of the main body case. A wiring device characterized in that the wire insertion hole is formed.