JP3044663B2 - Wiring equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device for connecting wiring installed below a free access floor or the like.

(Prior Art) Conventionally, there are various wiring devices such as plugs and connectors, which are provided for use in wire connection. For the wiring of this type of conventional wiring equipment, a winding terminal is adopted,
The stranded wire is fixed to the terminal plate using terminal screws.

Recently, due to the development of free access floor, etc., wiring with vinyl sheath cable has been performed under the floor panel, and connection using plug-in plugs and connectors can not be done, so connectors using winding terminals have been used. I have.

(Problems to be Solved by the Invention) By the way, none of the above-mentioned conventional plugs and connectors can connect a single wire and a single wire cable, and it takes time and effort to connect to a winding terminal, resulting in poor workability. is there. In addition, the wiring change work accompanying the layout change of the indoor equipment and the like is troublesome.

INDUSTRIAL APPLICABILITY The present invention enables quick connection of single wires and single-wire cables, enables joints in indoor wiring paths, facilitates wiring changes accompanying layout changes, etc., is quick and easy to connect and disconnect, and has good workability. It is another object of the present invention to provide a tough wiring device in which tension does not directly act on the terminals.

(Means for Solving the Problems) In order to solve the above problems and achieve the above object, the present invention has taken the following technical means.

That is, the present invention provides a plug blade having a terminal portion at one end, which is built into a body formed of a body and a cover, a lock spring for locking an electric wire inserted between the terminal portions, An unlocking button for releasing the locked state of the electric wire and the lock spring when a pressing force is applied, wherein the body has a cylindrical inspection blade surrounding wall and connection guide portion in which the plug blade is provided, The terminal portion includes a pair of terminal plates facing each other, a lock spring is incorporated between both terminal plates, one terminal plate has a cutout through which an unlocking button passes, and the insertion direction of the electric wire and the longitudinal direction of the plug blade. The direction in which the unlocking button is pushed is defined in the direction intersecting, and the body is provided with an unlocking button operation device insertion hole into which the unlocking button operation device can be inserted, and the front side of the device insertion hole in the wire insertion direction. To unlock the button operation device by inclining so that the distance to the electric wire becomes smaller toward the front side. The inclined surface is provided to, to the cover or body, cord anchorage member for cord tension removed is attached.

Further, the middle body incorporating the plug blade may be built in between the body and the cover, and the body and the cover may be formed of a shock-resistant thermoplastic resin, and the middle body may be molded of a thermosetting resin.

(Operation) According to the present invention, a wire can be connected by inserting a single wire or a single wire cable or a rod-type crimp terminal between the terminal portion and the lock spring, and the wire and the lock spring can be connected by pressing the unlock button. The connection can be released by releasing the locked state. Here, since the blade is housed in the tubular blade surrounding wall and the connection guide, there is no danger of touching the blade directly and causing an electric shock. Furthermore, the terminal plate provided in the terminal portion has a cutout through which the unlocking button passes so that the distance between the part where the pressing force is applied to the unlocking button and the electric wire can be increased, and furthermore, the insertion direction of the electric wire. By defining the pushing direction of the unlocking button in a direction that intersects with the direction, the distance between the insertion part of the electric wire and the part that applies a pressing force to the unlocking button can be further increased, so that the operation of the unlocking button The operation of the unlock button is facilitated without being hindered by this. In addition, the pushing direction of the unlocking button is defined in a direction intersecting with the longitudinal direction of the blade, and the blade is housed in the blade surrounding wall and connection guide provided in the body, so that the body is consequently the body. The unlocking button is arranged near the end in the longitudinal direction, so that it is easy to hold the body when operating the unlocking button, which also facilitates the operation of the unlocking button. Further, since the cord fixing member is provided, even if tension is applied to the electric wire, the tension does not reach the connection portion with the terminal portion, and it is possible to prevent the connection from being released by the tension. Here, since the wire is held by the terminal plate and the lock spring, the wire may fall off if a large tension acts on the wire.However, the provision of the cord stopper ensures that the wire falls off. Can be prevented. As a result, even if the electric wire is wired in a free state without being fixed to another member, the electric wire does not come off from the wiring device. In addition, since the device insertion hole for operating the unlock button is provided in the body, the unlock button is activated by applying a pressing force to the unlock button using a device such as a screwdriver inserted through the device insertion hole. Then, the lock spring is pressed and unlocked, and the connection is released only by pulling a single wire or the like. Therefore, reconnection of a single line or the like is possible, and connection and disconnection of the indoor wiring path are performed easily and quickly. In addition, the body is provided with an inclined surface that is continuous with the front side of the device insertion hole in the direction of insertion of the electric wire and is inclined so that the distance from the electric wire becomes smaller toward the front side to guide the unlocking button operation device. The button operating device can be inserted obliquely, and the wire can be easily pulled out by increasing the distance between the unlocking button operating device and the electric wire.

In the case where the blade is incorporated into the middle body made of thermosetting resin and the body and cover are made of thermoplastic resin, sufficient durability performance against external impact is obtained, and furthermore, the charging metal part which may generate heat Heat resistance performance can be ensured in the periphery, and deformation and breakage of the body and cover due to heat generation and arc can be prevented. Moreover,
In order to apply a pressing force to the unlocking button, an instrument inserted into the instrument insertion hole must be used.Therefore, when inserting and removing the blade, the unlocking button is not inadvertently pressed and the wire does not come off, It can be safely inserted and removed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In the drawing, 1 is a plug which is one of wiring devices,
A body 2, a cover 3, and a shock-resistant thermoplastic resin;
Cord stopper 4 and connection / wiring (for example, connector) fitting / locking member 5, middle body 6 made of thermosetting resin, plug blade 8 having terminal portion 7 incorporated in middle body 6 and lock spring 9 and an unlocking button 10.

The body 2 has a substantially square tubular plug blade surrounding wall and connection guide portion 11 provided at the tip of the cover fitting portion 2A in a communicating manner, and two partition walls 12 provided in parallel inside thereof. Each of the three blades 8 is provided one by one.
Also, at the wire insertion side end of the cover fitting portion 2A, three wire insertion recesses 13 are provided inside (lower side), and an unlock button operation of a width spanning outside of both ends of the recess 13 outside (upper side). In addition, an unlocking button fitting recess 15 and a blade holding recess 16 are provided following the recess 13.

Then, the upper wall 15A of the unlock button fitting recess 15 is provided with the instrument insertion hole 1.
The recess 15 and the device insertion hole 14 are communicated with each other so that an unlocking button operation device such as a driver 17 can be inserted along the upper wall 15A.

Further, the body 2 is provided with a rivet insertion hole 19 for a female stud 18 at the end on the wire insertion side at the wire insertion side end, and a rivet insertion hole 20 is also provided outside the fitting portion 2A. A mounting groove 21 of the locking member 5 having a T-shaped cross section is formed on both sides of the cover fitting portion 2A in the up-down direction.
A guide groove 22 in the longitudinal direction is formed on the upper and lower surfaces.

The cover 3, which forms a body together with the body 2, has a substantially flat plate shape and a shape that matches the cover fitting portion 2A of the body 2, has a middle body fitting concave portion 3A, and connects the cord stopper 23 to the wire insertion side. At the top and at the top,
Body connection cylinders 26 and 27 in which the rivet insertion holes 24 and 25 of the female rivet 18 are formed in a penetrating manner are provided corresponding to the rivet insertion holes 19 and 20 of the body 2.

The cover 3 is provided with an electric wire insertion concave portion 28 on the upper surface in close proximity to the cord stopper portion 23 so as to correspond to the electric wire insertion concave portion 13 of the body 2. An insertion hole 30 for the screw 29 is provided, and on the other side, a mounting portion 32 of the cord fixing member 4 having a longitudinal stud insertion hole 31 is projected.

The cord stopper 4 has a cord pressing portion 4A formed on the lower surface thereof, a mounting hinge portion 33 protruding below one side thereof, and a rivet insertion hole 34 provided therein. The cover 35 is inserted through the stud insertion hole 31 of the cover 3, and is attached to the cover 3 so as to be rotatable about the stud 35. Further, a cord tightening screw insertion hole 36 is provided on the other side of the cord fixing member 4, and the cord tightening screw 29 inserted through the screw insertion hole 36 is inserted through the insertion hole 30 of the cover 3 to form a nut 37.
To fix it.

The connecting and wiring device fitting and locking member 5 has a flat plate-like shape, a vertical central T-shaped engaging projection 38 is provided on the inner surface of a substantially central portion, and a locking hook portion 39 is formed at the tip. The ridge 38 is inserted into the mounting groove 21 of the body 2 from below and fixed.

The middle body 6 is fitted into a middle body fitting concave portion 3A (see FIG. 1) provided in the cover 3 and is built in between the body 2 and the cover 3 as shown in FIGS. Is done. The inside body 6 has a substantially box shape with an open upper side, a different-electrode interval wall 40 is provided inside, and three terminal portion fitting recesses 41 and a blade press-fitting recess 42 are formed. A blade holding recess groove 43 is provided on the outer wall on the side, and an electric wire insertion concave portion 44 is formed on the outer wall on the side of the terminal portion fitting concave portion 41 so as to correspond to the electric wire insertion concave portion 13 of the body 2.

The terminal portion 7 of the plug blade 8 has a pair of upper and lower terminal plates (hereinafter, referred to as an upper surface plate and a lower surface plate), has a substantially U shape when viewed from the longitudinal direction, and has a lock spring 9 incorporated between the upper and lower surface plates. A notch 45 is provided on the upper surface plate so that the unlocking button 10 contacts the lock spring 9.

A press-fit fixing portion 46 is provided on the lower surface of the blade 8 to protrude therefrom.
The blade 8 is press-fitted into the blade press-fitting recess 42 of the middle body 6 so that the blade 8 can be temporarily fixed to the middle body 6.

The lock spring 9 includes a contact portion 9A and a lock portion 9B, and is incorporated in the terminal portion 7 such that both portions 9A and 9B are on the upper side.

The unlocking button 10 has a pair of side legs 10B and a center leg 10A, and the different leg spacing wall 40 of the body 6 is fitted between each side leg 10B and the center leg 10A, and both legs 10A, The lower surface 10B comes into contact with the lock portion 9B of each lock spring 9.

In the above embodiment, the assembling of each part is performed by firstly fitting the plug blade 8 having the lock spring 9 incorporated in the terminal portion 7 into the middle body 6, temporarily fixing the plug blade 8, and then releasing the unlock button 10 from the middle body 6. And the middle body 6 is recessed 3A of the cover 3.
Fit into Next, after the fitting and locking member 5 is attached to the body 2, the tip of the blade 8 is inserted into the body 2 and into the blade surrounding wall and connection guide portion 11 to fit the body 2 and the cover 3,
The work is completed by fixing the both with the stud 18. Before the middle body 6 is fitted into the cover 3, the cord fixing member 4 is fixed to the cover 3 with a rivet 35 and also with a tightening screw 29 and a nut 37.

Therefore, at the time of connection, a single wire 47
Is inserted between the terminal portion 7 and the lock spring 9 through the wire insertion recesses 13 and 28, the cord 47 is locked so that it will not come off even if the cord 47 is pulled. Then, the tightening screw of the cord stopper 4
By tightening cord 47 with 29 and nut 37,
The cord 47 is clamped between the cord stopper 23 of the cover 3 and the member 4 so that the cord 47 cannot be completely removed.

FIG. 7 shows a state in which the plug 1 according to the present invention is connected to a cord 47, in which 48 is a floor panel, 49 is a cord bushing, 50 is a terminal device,
The cord bushing 49 is fixed so as to sandwich the floor panel 48 from above and below, and can move the floor panel 48 to change the cord take-out position, and can cope with the change in the layout of the equipment arranged on the floor panel 48. It has become. Here, the cord 47 connected to the plug 1
As shown in the figure, the cord 47 is not fixed at a fixed position and is in a free state. However, since the cord 47 is not only locked but also not completely pulled out by the cord stopper 4, the cord 47 moves. However, the cord 47 does not come off from the plug 1.

Therefore, when connecting a connecting wiring device such as a cord connector or the like to the other end of the plug 1, the plug 1 can be connected simply by inserting the plug 1 into the cord connector. The plug 1 is not easily detached from the connector.

When the plug 1 and the cord connector are separated from each other, the end of the fitting and locking member 5 opposite to the locking hook 39 is pushed toward the side surface of the body 2 so that the hook 39 can be separated. Since the engagement is released, the plug 1 may be pulled out from the cord connector.

In order to release the connection, as shown in FIG. 6, the tightening screw 29 and the nut 37 are removed from the cord fixing member 4, and the cord fixing member 4 is turned upward around the female stud 35 and the cord is rotated. After releasing the retainer, the driver 17 is inserted through the instrument insertion hole 14 between the unlocking button 10 and the fitting recess upper wall 15A. Next, when the grip portion of the driver 17 is pressed downward, the unlock button 10 is pressed downward, and the lock portion 9B of the lock spring 9 is pressed and bent against its elastic force, and the wire lock is released. Therefore, by pulling out the cord 47, the connection can be released.

When the reconnection is performed, it can be performed in the same operation order as described above.

FIG. 8 shows another embodiment of the present invention. The difference from the above embodiment is that the shape of the lock spring 9, particularly the contact portion, is shared with the lock portion, and the other portions are the same as the above embodiment. Therefore, the same reference numerals are given and the description is omitted.

In the above embodiment, the middle body 6 can be formed integrally with the cover 3.

According to the embodiment of the present invention, since the blade 8 is temporarily press-fitted into the middle body 6, the blade 8 can be easily inserted into the body 2 and can be easily assembled. Since the partition wall 12 is provided in the blade surrounding wall and connection guide section 11, the safety is high, and the cord fixing member 4 is hinged by the rivet 35, so that the work at the time of connection or release is easy. Yes, and furthermore, the connection wiring device fitting / locking member 5
Is simply inserted into the mounting groove 21 of the body 2 so that assembly is easy and engagement and separation with a mating wiring device can be easily performed.

Furthermore, following the unlock button operation device insertion hole 14, the unlock button insertion recess upper wall 15A is inclined, so that the driver 17 can be inserted diagonally, and not only is it easy to pull out the wire, but also Since it can be temporarily held, the unlocking operation can be performed efficiently.

In the present invention, the mounting means of the cord stopper 4 and the shape and the mounting means of the connecting / wiring fitting fitting / locking member 5 are not limited to the above-described embodiment.

Further, the blade surrounding wall and connection guide portion 11 can be provided on the body 2 and the cover 3 by being vertically divided into two parts, respectively, so that automatic assembly can be facilitated.

(Effects of the Invention) As described above, the wiring device according to the present invention includes a plug inserted into a body including a body and a cover and having a terminal portion at one end, and an electric wire inserted between the terminal portion. A lock spring for locking, and an unlocking button for releasing the locked state of the electric wire and the lock spring when the lock spring comes into contact with the lock spring and the tubular body is provided with the plug blade therein. It has a blade surrounding wall and connection guide,
The terminal portion includes a pair of terminal plates facing each other, a lock spring is incorporated between both terminal plates, and one terminal plate has a cutout through which an unlocking button passes, and a power supply insertion direction and a longitudinal direction of the plug blade. Since the push direction of the unlocking button is specified in the direction crossing with, single wire connection can be easily and quickly performed as a quick connection terminal, and stranded wire connection using not only single wire cable but also rod-shaped crimp terminal It is possible to perform one-touch connection and disconnection of wiring on the indoor wiring path, it is easy to change wiring by changing the layout of equipment etc., and the blade is surrounded by the blade surrounding wall and connection guide part. Therefore, the stability is extremely high and the workability is good. Furthermore, the terminal plate provided in the terminal portion is provided with a notch through which the unlocking button passes, so that the distance between the part where the pressing force is applied to the unlocking button and the electric wire can be increased, and furthermore, the insertion direction of the electric wire is By defining the pressing direction of the unlocking button in the intersecting direction, the distance between the insertion part of the electric wire and the part that applies the pressing force to the unlocking button can be further increased, so that the operation of the unlocking button is performed by the electric wire. There is an effect that the operation of the unlock button is facilitated without being hindered. In addition, the pushing direction of the unlocking button is defined in a direction intersecting with the longitudinal direction of the blade, and the blade is housed in the blade surrounding wall and connection guide provided in the body, so that the body is consequently the body. Since the unlocking button is arranged near the end in the longitudinal direction, there is also an advantage that the body can be easily held when operating the unlocking button, and the operation of the unlocking button becomes easy. In addition, since the cord fixing member is provided, there is an advantage that even if tension is applied to the electric wire, the tension does not reach the connection portion with the terminal portion, so that disconnection due to the tension can be prevented. Here, since the wire is held by the terminal plate and the lock spring, the wire may fall off if a large tension acts on the wire.However, the provision of the cord stopper ensures that the wire falls off. There is an advantage that it can be prevented. As a result, there is an advantage that the wire does not come off from the wiring device even if the wire is wired in a free state without being fixed to another member. In addition, the body is provided with an inclined surface that is continuous with the front side of the device insertion hole in the direction of insertion of the electric wire and is inclined so that the distance from the electric wire becomes smaller toward the front side to guide the unlocking button operation device. There is an advantage that the button operating device can be inserted obliquely, and the wire can be easily pulled out by increasing the distance between the unlocking button operating device and the electric wire.

A medium body incorporating a blade is embedded between the body and the cover, and the body and the cover are formed of a thermoplastic resin that is strong against impact, and the medium body molded with a thermosetting resin is resistant to impact. The device can be made tough enough to withstand, and since the middle body around the charging metal portion is made of a thermosetting resin, heat resistance is ensured and quality can be improved.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a partially broken plan view, FIG.
FIG. 4 is a side view of the central longitudinal section, FIG. 5 is a partially cutaway rear view, FIG. 6 is a partially cutaway side view showing an unlocking operation state, FIG. 7 is a perspective view showing an example of a connection state, FIG. The drawing is a partially broken side view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Wiring apparatus (plug), 2 ... Body, 3 ... Cover, 4 ... Cord fixing member, 5 ... Connection wiring apparatus fitting locking member, 6 ... Medium body, 7 ... Terminal part, 8 ... a blade
9 ... lock spring, 10 ... unlock button, 11 ... plug blade surrounding wall and connection guide, 14 ... unlock button operation instrument insertion hole.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-32266 (JP, A) JP-A-56-161367 (JP, U) JP-A-59-139968 (JP, U) JP-A-55-139968 133579 (JP, U) Actually open 1979-93194 (JP, U) Actually open 56-126775 (JP, U)

Claims (2)

(57) [Claims] 1. A blade built in a body consisting of a body and a cover and having a terminal portion at one end, a lock spring for locking an electric wire inserted between the terminal portions, An unlocking button for releasing the locked state of the electric wire and the lock spring when a force is applied, wherein the body has a cylindrical blade surrounding wall and connection guide in which the blade is housed, and the terminal The part has a pair of terminal plates facing each other, a lock spring is incorporated between both terminal plates, one terminal plate has a notch through which the unlock button passes, and intersects with the insertion direction of the electric wire and the longitudinal direction of the blade. The release direction of the unlock button is defined in the direction in which the unlock button is operated, and the body is provided with an unlock button operation device insertion hole into which the unlock button operation device can be inserted, and at the front side of the device insertion hole in the wire insertion direction. Tilt to guide the unlocking button operation device by inclining so that the distance to the electric wire becomes smaller as it is continuous and forward. Surface is provided on the cover or body, characterized in that the cord anchorage member for cord tension removed is attached wiring devices. 2. A medium body in which the blade is incorporated, wherein the medium body is embedded between the body and the cover, the body and the cover are formed of a thermoplastic resin having high impact resistance, and the medium body is formed of a thermosetting resin. The wiring device according to claim 1, wherein: