JPH07230843A - Connecting device - Google Patents

Abstract

PURPOSE:To provide a connecting device whose contact resistance with a contactor is comparatively reduced while comparatively reducing force to hold a mating side connecting device. CONSTITUTION:In an apparatus body 1, inserting ports 23 in which a contactor arranged in a mating connecting device is inserted are opened in a front surface. The contactor is formed in a round pin shape whose tip surface is a plane. Holders 44 integrally having contact pieces 44c coming into contact with a tip surface of the contactor inserted through the inserting ports 23 and spring bodies 44b to energize the contact pieces 44c in the contactor pushing-out direction, are arranged in the apparatus body 1. Holding walls 24 are formed in peripheral parts of the inserting ports 23 in the apparatus body 1, and locking holes 25 to hold a mating side connecting device in the apparatus body 1 by comparatively weak holding power by engaging with a locking claw of the mating side connecting device, are formed in inner peripheral surfaces of the holding walls 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device into which a contact provided in a counterpart connecting device is inserted and connected.

[0002]

2. Description of the Related Art Generally, in a connection device such as an outlet, an insertion port into which a contactor (for example, a blade) provided on a counterpart connection device (for example, a plug) is inserted is opened and inserted into a body. It has a configuration including a blade receiving spring that holds the contact from a direction intersecting the insertion direction.

[0003]

However, in the above structure, the blade receiving spring holds the contact with a relatively large spring force in order to reduce the contact resistance between the contact and the blade receiving spring. Since it is a thing, the frictional force acting between the blade receiving spring when the contactor is inserted and removed becomes large,
There is a problem that a large amount of force is required to attach / detach the other party connecting device. In addition, since a large force is required to pull out the other party's connection device, if you hook the electric wire connected to the other party's connection device with your feet, etc., an accident will occur that the other party's connection device will not come off and the electric wire will break. Sometimes.

An object of the present invention is to solve the above problems, and it is possible to make the contact resistance with the contactor relatively small while the force for holding the counterpart connecting device is relatively small. The present invention intends to provide a connected device that has been made.

[0005]

According to a first aspect of the present invention, there is provided a container body in which an insertion opening for inserting a round pin-shaped contactor having a flat end surface provided in a mating connection device is opened in a front surface, and a container. A contact piece that contacts the tip surface of the contactor that is housed inside the body and inserted through the insertion port, a terminal that is housed inside the body and that electrically connects the contact piece to an external circuit, and a contactor for the contact piece A spring body for exerting a spring force in the direction of pushing the body out of the body, and a lock formed on the body so as to hold the counterpart connecting device to the body with a comparatively weak holding force against the spring force of the spring body. And a section.

According to a second aspect of the present invention, in the first aspect of the present invention, the spring body is formed by bending the strip plate in a meandering shape, and the contact piece is continuously and integrally formed at one end of the strip plate. The other end is joined to the terminal. According to a third aspect of the invention, in the first aspect of the invention, the spring body is a coil spring, and the contact piece is connected to the terminal via a connecting wire made of a braided wire.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the rear surface of the body is in contact with the mounting surface, and the base is fixed to the mounting surface by a fixing tool inserted from the front side. It is characterized by comprising a cover body covered on the front side. According to a fifth aspect of the present invention, in the first aspect of the present invention, the body is made of a synthetic resin body in which terminals, contact pieces, and a spring body are installed, and a front surface is opened; It is formed in the unit size of an embedded wiring device that is standardized by a synthetic resin cover with an open mouth, and an assembly hole is opened on one side of the body and cover and protrudes from the other side for assembly. It is characterized in that the body and the cover are joined by locking the assembly claw inserted through the hole in the peripheral portion of the assembly hole.

According to a sixth aspect of the invention, in the fifth aspect of the invention, mounting claws are provided on both side surfaces of the cover, which engage with coupling holes formed in a mounting frame standardized for an embedded wiring device. It is characterized in that it is formed by continuously projecting. The invention according to claim 7 is provided with a container body having a size corresponding to two unit dimensions of the wiring device attached to the mounting frame standardized for the embedded wiring device, and provided in the counterpart connection device. The front face of the body is provided with two sets of insertion ports into which round pin-shaped contacts having a flat end face are inserted, and contact the tip faces of the contacts housed in the body and inserted through the insertion port. A contact piece, a terminal that is housed in the body and electrically connects the contact piece to an external circuit, a spring body that applies a spring force to the contact piece in a direction to push the contactor out of the body, and a spring body of the spring body. And a locking portion formed on the body so as to hold the counterpart connecting device to the body with a comparatively weak holding force against the spring force.

The invention according to claim 8 is provided with a container body having a size corresponding to two unit dimensions of the wiring device attached to the mounting frame standardized for the embedded wiring device, A pair of first insertion ports into which round pin-shaped contacts having a flat end face provided in the counterpart connection device are inserted, and a flat contact provided in the second counterpart connection device are inserted. 2nd for 1 set
Is provided on the front surface of the body, and the contact piece that is housed in the body and comes into contact with the tip surface of the contactor inserted through the first insertion opening and the contact piece that is housed in the body are connected to the external circuit. A terminal that is electrically connected, a spring body that applies a spring force to the contact piece in the direction that pushes the contact out of the body, and a relatively weak holding force of the counterpart connection device against the spring force of the spring body. A locking portion formed on the body so as to be held on the body and a blade receiver for sandwiching the second contactor housed in the body and inserted through the second insertion opening from a direction intersecting the insertion direction. And a spring.

According to a ninth aspect of the present invention, there is provided a device having a body having three unit dimensions of a wiring device attached to a mounting frame standardized for an embedded wiring device, and the other side connecting device. The front surface of the contactor, which is installed in the body and is inserted through the insertion opening, is provided with three sets of insertion ports on the front surface of the body into which the round pin-shaped contacts having a flat end surface are inserted. A contact piece that contacts the contact piece, a terminal that is housed in the body and that electrically connects the contact piece to an external circuit, and a spring body that applies a spring force to the contact piece to push the contactor out of the body. And a locking portion formed on the body so as to hold the counterpart connecting device to the body with a relatively weak holding force against the spring force of the spring body.

According to a tenth aspect of the present invention, there is provided a container body having a size corresponding to three unit dimensions of the wiring device attached to the mounting frame standardized for the embedded wiring device. Two sets of first insertion ports, into which round pin-shaped contacts having a flat end surface provided in the counterpart connecting device, are inserted, and flat plate contacts provided in the second counterpart connecting device are inserted. The second insertion port for one set is provided on the front surface of the body, and is installed inside the body.
Contact piece that contacts the tip surface of the contact inserted through the insertion port of the contact, a terminal that is installed in the body and electrically connects the contact piece to an external circuit, and a contact piece for the contact piece from the body A spring body for exerting a spring force in the pushing direction, a locking portion formed on the body so as to hold the counterpart connecting device on the body with a comparatively weak holding force against the spring force of the spring body, The invention according to claim 11, further comprising: a blade receiving spring that clamps a second contactor housed in the body and inserted through the second insertion opening from a direction intersecting the insertion direction. The device includes a body having a unit size of three of the wiring equipment attached to the mounting frame standardized for the plug-in type wiring equipment, and the tip end surface provided on the first counterpart connection device is flat. One set of first insertion port into which a certain round pin-shaped contactor is inserted, and second mating connection The front end surface of the contactor which is installed in the body and is inserted through the first insertion hole is provided with two sets of second insertion ports into which the flat plate-shaped contacts provided in the device are inserted. A contact piece that contacts the contact piece, a terminal that is housed in the body and that electrically connects the contact piece to an external circuit, and a spring body that applies a spring force to the contact piece to push the contactor out of the body. A locking portion formed on the body so as to hold the counterpart connecting device to the body with a relatively weak holding force against the spring force of the spring body;
And a blade receiving spring for sandwiching the second contactor inserted through the insertion opening from the direction intersecting the insertion direction.

[0012]

According to the structure of the first aspect, the contact piece with which the tip end surface of the round pin-shaped contactor abuts is provided, and the spring body for exerting the spring force in the direction of pushing out the contactor on the contact piece is provided, and By providing the engaging portion that holds the counterpart connecting device to the container with a comparatively weak holding force, the tip end surface of the contactor is electrically connected to the contact piece. That is, unlike the conventional configuration, the contact piece is not clamped from the direction intersecting the insertion direction of the contact piece to electrically connect with the blade receiving spring, but only the contact piece is elastically contacted with the tip end surface of the contact piece. Therefore, no frictional force is generated between the contact piece and the contactor when the contactor is inserted or removed, and a large force is not required to insert or remove the contactor. Further, by increasing the area of the tip surface of the contactor and the spring force of the spring body, the contact resistance between the contactor and the contact piece can be made relatively small.
Therefore, the engaging portion for holding the counterpart connection device is provided separately from the means such as the spring body for providing the function of reducing the contact resistance. Compared with the case where the blade receiving spring is also used, while reducing the holding force of the mating connection device,
It is possible to reduce the contact resistance. As a result, it becomes easy to attach and detach the other party connecting device, and even if the electric wire connected to the other party connecting device is hooked with a foot, etc., the other party connecting device is removed from the body and an accident such as a wire breakage is prevented. It is possible.

According to the structure of claim 2, since the spring body and the contact piece are continuously and integrally formed, the number of parts is small, the assembling work is facilitated, and the cost is reduced. According to the structure of claim 3, the spring body and the contact piece are separated from each other, and the contact piece is connected to the terminal via the connecting wire made of the braided wire.
When the spring body and the contact piece are integrated and the spring body is used as an electric path to the terminal as in the configuration of (1), if the current capacity is increased, the thickness of the strip plate becomes large and the spring body becomes difficult to bend. In the structure of claim 3, the current capacity is defined by the thickness of the connection line regardless of the spring body, and when the current capacity is large, it is more advantageous than the structure of claim 2.

According to the structure of claim 4, the rear surface of the body is in contact with the mounting surface, and the base is fixed to the mounting surface by the fixing tool inserted from the front side, and the body is covered on the front side of the base. Since it is formed with the cover body, it can be easily attached to the attachment surface without using a separate attachment member. According to the configuration of claim 5, the body is formed by the body and the cover, the assembly hole is opened at one side of the body and the cover, and the assembly claw that protrudes from the other side and is inserted into the assembly hole is assembled. Since the body and cover are joined by being locked to the peripheral part of the hole,
No other member is required for connecting the body and the cover. Moreover, when the force is applied in the direction of bringing the body and the cover closer to each other by aligning the position of the assembling claw with the assembling hole, the body and the cover are easily coupled, so that the assembling work is facilitated. In addition, since the body is formed to the unit size of standardized embedded wiring equipment, it can be installed using a mounting frame for general embedded wiring equipment. It is not necessary to manufacture members for use, and sharing of construction members leads to cost reduction. In addition, it is not necessary to newly learn construction technology, and construction can be performed using conventional construction technology.

According to the sixth aspect of the present invention, since the mounting claws that engage with the coupling holes formed in the mounting frame are continuously and integrally projected, the mounting claws for mounting to the mounting frame are provided. Since it is not necessary to use a separate member for providing it, the number of parts can be reduced and the configuration can be simplified. Claim 7
According to the configuration, since two sets of insertion ports corresponding to the round pin-shaped contacts similar to those in claim 1 are provided, the counterpart connection device can be easily attached and detached similarly to the configuration in claim 1. In addition, even if the electric wire connected to the counterpart connection device is hooked with a foot or the like, it is possible to prevent an accident such as disconnection of the electric wire because the counterpart connection device is disengaged from the body.
Moreover, the body is 2 of the unit size of the standardized wiring equipment.
Since it has the size of one piece, the most general mounting frame for mounting this kind of wiring equipment is formed so that up to three wiring equipment of unit size can be mounted. It is possible to use one mounting frame and to juxtapose with other wiring devices having unit dimensions such as a switch and an indicator lamp.

In the structure of claim 8, one set of the first insertion port corresponding to the first mating connecting device having the round pin-shaped first contactor, and the flat second contactor. Since it has a second insertion port for one set corresponding to the second counterpart connection device having the above, the first insertion port operates in the same manner as in the configuration of claim 1 and has a contact resistance. It is possible to hold the other party's connection device with a comparatively small holding force while making it smaller, making it easier to attach and detach the other party's connection device, and hooked the electric wire connected to the other party's connection device with your feet etc. It is possible to prevent disconnection at the time. In addition, in the case where inconvenience occurs if the other party's connection device easily comes off, the second
It becomes possible to cope by using the insertion port of
It is possible to meet two different requirements simply by using one connecting device. Moreover, similarly to the configuration of the first aspect, by using the mounting frame capable of mounting up to three wiring devices each having a unit size, it is possible to arrange the wiring devices together with other wiring devices.

The structure of claim 9 is different from the structure of claim 1 in that it has a size corresponding to three unit wiring devices, and a maximum of three connecting devices can be connected. . Moreover, each partner connection device can be easily attached and detached, as in the configuration of claim 1. Claim 10
In the above configuration, two sets of first insertion ports corresponding to the round pin-shaped first contactors and 1 corresponding to the flat plate-shaped second contactors are provided.
The second insertion port for one set is provided, and in the structure of claim 11, the first insertion port for one set corresponding to the first contact having a round pin shape and the second insertion port having a flat plate shape. It has two sets of second insertion ports corresponding to the contacts, and has the same effect as the structure of claim 8. However, since the body has the size of three wiring devices of unit size, it cannot be placed side by side with another wiring device with respect to the mounting frame for three.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT As shown in FIGS. 1 to 3, a body 1 is made of a synthetic resin body 10 having an open front surface (upper surface in FIG. 1).
And a cover 20 made of synthetic resin, which is joined to the front side of the body 10. The body 10 and the cover 20 are coupled to each other by using a metal assembly frame 30 formed in a substantially U shape. Each leg of the assembling frame 30 is mounted in assembling grooves 22 and 12 formed so as to straddle the flange 21 and the side surface of the body 10, which are provided on both side surfaces of the rear end of the cover 20, respectively. The body 10 and the cover 2 are opened by opening the forked portions 31 provided at the ends of the leg pieces of the assembly frame 30.
Is tied to 0. A pair of mounting claws 32 are provided on the intermediate piece of the assembly frame 30 so as to project the body 10 and the cover 20.
In the state of being connected at 0, a pair of mounting claws 32 are provided on both side surfaces of the body 1 so as to project. Here, the unit body 1 has a unit size of up to three that can be attached to a mounting frame (which will be described later) for three large squares, which is standardized for embedded wiring equipment according to the JIS standard or the like. It has the same shape and dimensions as the wiring equipment, and can be attached to this type of mounting frame. A pair of substantially circular insertion openings 23 are opened in the front wall of the cover 20, and a holding wall 24 is provided so as to project forward along the entire circumference on the front peripheral portion of the cover 20. Holding wall 2
A portion of the inner surface of 4 which faces each other across a straight line in the direction in which the insertion ports 23 are arranged serves as a locking portion that engages with a locking claw provided on a counterpart connecting device to be described later and holds the counterpart connecting device. A stop hole 25 is formed.

The inside of the body 10 is divided into two by a partition rib 11.
The partition groove 11 is divided into chambers, and a positioning groove 11 for positioning the body 10 and the cover 20 is engaged with a positioning protrusion 20a provided on a rear surface of the cover 20 at a front end portion of the partition rib 11.
a is formed. A terminal 40 is installed in each chamber in the body 10 partitioned by the partition rib 11. The terminal 40 is a so-called quick-connect terminal, and a terminal board 41
And a locking spring 42 for holding an electric wire between the terminal plate 41 and the terminal plate 41.
And a release button 43 for releasing the electric wire held between the terminal plate 41 and the locking spring 42. The terminal plate 41 includes a main piece 41 a arranged along the partition rib 11 and a main piece 41 a.
a is continuously and integrally extended from the front edge of
a pair of connecting pieces 41b bent so as to face a. The locking spring 42 is formed by bending one end portion of the strip plate into a substantially J-shape to form a locking piece 42a, and the other end portion thereof is substantially S-shaped.
A contact piece 42b is formed by bending in a letter shape,
The tips of the locking pieces 42a and the contact pieces 42b are oriented in substantially the same direction.

The lock springs 42 thus formed are provided in pairs for each terminal plate 41 so as to be arranged between the main piece 41a and each connecting piece 41b. The locking piece 42a and the contact piece 42b face the connecting piece 41b, and the locking piece 42a, the contact piece 42b and the connecting piece 41b.
It is arranged so that the front end portion is opposite to b. Therefore, the locking piece 42a, the contact piece 42b, and the connecting piece 41b.
When the electric wire is introduced from the tip end side of the connection piece 41b toward the base end side, the electric wire is contacted with the contact piece 42b and the connection piece 41b.
It is sandwiched between and to be electrically connected to the terminal board 41, and the locking piece 42a bites into the electric wire to prevent the electric wire from coming off. In the body 1, a pair of locking pieces 42 of the locking springs 42 corresponding to each terminal board 41 is provided.
A release button 43 is arranged so as to straddle a, and when a pressing force is applied to the release button 43 from the rear, the locking piece 42a is brought into contact with the contact piece 41a.
The electric wire can be pulled out by bending in the direction away from b. On the rear wall of the body 10, four electric wire insertion holes 13 (see FIG. 2) for introducing electric wires corresponding to the locking springs 42 are opened inside the body 1, and the release button 43 is provided. Two removal holes 14 for inserting the tip of a minus driver for applying a pressing force are opened.

By the way, the main piece 41a of the terminal board 41 is
A receiving member 44, which is in contact with the tip of a contact of a counterpart connecting device (described later), is fixed. Receiving money 44 is the main piece 4
1a, a fixed piece 44a fixed by spot welding or the like, a spring body 44b which is continuous with the front end of the fixed piece 44a and meanders in a bellows shape so as to be able to expand and contract in the front-rear direction, and the other end which is continuous with the tip of the spring body 44b. A strip of a conductive material is bent and formed in a shape integrally provided with a contact piece 44c arranged along the opening surface of the insertion port 23 so that the tip surfaces of the contacts of the connection device come into contact with each other. There is. However, if the contact piece comes into contact with the contact piece 44c and the insertion force acts, the spring body 44
The b is bent and the spring force is accumulated, and this spring force acts as a contact pressure on the contact.

As described above, the body 1 is formed so that it can be attached to the mounting frame standardized for the wiring equipment, and the mounting frame 70 is formed in the shape shown in FIG. . That is, the mounting frame 70 is formed in a rectangular shape in which both ends of a pair of vertical frame members 71, 72 having a substantially L-shaped cross section are continuously and integrally joined by a pair of horizontal frame members 73. One vertical frame member 71
3 pairs of coupling holes 74a with which the mounting claws 32 are respectively engaged are formed, and three mounting claws 32 are inserted into the side pieces 72a protruding rearward on the other vertical frame member 72. A coupling hole 74b is formed. From the rear edge of the coupling hole 74b (the lower edge of FIG. 4), a bending piece 75 that bends so as to change the distance from the vertical frame member 71 is integrally provided in the coupling hole 74b.
By inserting the mounting claw 32 between a pair of shoulders formed on both sides of the operation piece 76 projecting at the center of the front edge of the bending piece 75 and the front edge of the coupling hole 74b, the body is formed. 1 is held by the mounting frame 70. When the body 1 is attached to the mounting frame 70, the front surface of the body 1 is exposed through the exposure window 77 formed in the central portion of the mounting frame 70. In order to remove the body 1 from the mounting frame 70, an external force is applied to the operation piece 76 by the tip of a flat head screwdriver or the like to bend the operation piece 76.
It suffices to bend 5 in a direction away from the vertical frame member 71. A long hole 78 into which a box screw to be screwed into an embedded box such as a switch box is inserted into each horizontal frame member 73 of the mounting frame 70, and a decorative plate for covering the front side of the mounting frame 70 is attached. A screw hole 79 into which the plate screw is screwed is formed.

By the way, as a counterparty connection device connected to the above-mentioned connection device, there is, for example, an intermediate connection device as shown in FIG. This intermediate connection device includes a rectangular parallelepiped body 80 made of an insulating material such as synthetic resin, and a protrusion 81 that can be inserted into a portion surrounded by the holding wall 24 is projectingly provided on one surface of the body 80. ing. A pair of contacts 82 formed in the shape of a round pin to be inserted into the insertion port 23 are provided on the tip surface of the protrusion 81 so as to project therefrom. In addition, a pair of locking claws 83 that engage with the locking holes 25 are provided on the side surface of the protrusion 81.
The locking claw 83 is movable back and forth with respect to the side surface of the protrusion 81 and is biased in the protruding direction. With this configuration, the contact 8
When 2 is inserted into the insertion port 23, the tip of the contactor 82 makes elastic contact with the base 44. Here, the tip end surface of the contactor 82 is a flat surface so that the contact area of the contact piece 44c of the receiving metal 44 can be made relatively large. That is,
The contact piece 44c moves the contactor 8 by the spring force of the spring body 44b.
The contact resistance between the contact piece 44c and the contact piece 82 can be reduced by elastically contacting the contact piece 2 and by allowing the tip end surface of the contact piece 82 to be a flat surface and having a relatively large contact area with the contact piece 44c. . Further, since the locking claw 83 engages with the locking hole 25 in a concavo-convex manner, the body 80 is joined and held to the body 1.

The intermediate connecting device functions as an adapter for electrically connecting a generally used plug to the above-mentioned connecting device, and in the body 80, the protruding surface of the projecting base 81 is provided. A pair of blade insertion holes 84 for inserting the blades of the plug are opened on the one surface adjacent to.
A blade receiving spring that receives the plug blade of the plug is installed in the body 80, and a conductive portion that electrically connects the contactor 82 to the blade receiving spring is formed. Here, the locking hole 2
5 and the engaging claw 83 are set to be relatively weak, and when the electric wire connected to the plug is hooked with a foot, the engaging state of the engaging hole 25 and the engaging claw 83 is It is easily released so that the body 80 can be detached from the body 1. Further, when the engagement state between the engagement hole 25 and the engagement claw 83 is released, the spring force of the spring body 44b of the receiving member 44 acts in the direction of pushing the contact 23 out of the body 1, so that the intermediate connection is made. The device comes off easily.

(Second Embodiment) In the first embodiment, the spring body 44b is used.
Was formed integrally with the receiving bar 44, but in the present embodiment, the receiving bar 44 is formed in a flat plate shape consisting of only the contact piece 44c, and as shown in FIGS. An example provided separately from the gold 44 is shown. That is, a coil spring is used as the spring body 45. Also,
Since the receiving metal 44 is not connected to the terminal 40, the contact piece 44c and the terminal 40 are electrically connected via the connecting wire 46 made of a braided wire.

Further, in this embodiment, the holding plate 50 is mounted on the rear portion of the cover 20. The holding plate 50 is provided with spacer pieces 51 projecting forward on both sides, a pressing piece 52 is provided on the rear surface of a portion corresponding to each terminal plate 41, and corresponds to the positioning groove 11 a of the partition rib 11. A positioning piece 53 (see FIG. 7) is provided on the rear surface of the portion in a protruding manner. Therefore, the holding piece 50 is positioned with respect to the body 10 by bringing the pressing piece 52 into contact with the terminal plate 41 and engaging the positioning piece 53 with the positioning groove 11a of the partition rib 11. Since the pressing piece 52 contacts the terminal 40, the rattling of the terminal 40 with respect to the body 10 is prevented. Engaging hooks 54 are provided on the peripheral portion of the holding plate 50 so as to project forward.
4 is an engaging recess (not shown) provided on the inner peripheral surface of the cover 20.
The holding plate 50 is joined to the cover 20 by engaging the concave and convex portions with. Further, a pair of through holes 55 formed in a rectangular shape are opened in the holding plate 50 at a portion corresponding to the receiving plate 44. Here, the holding plate 50 is spaced rearward from the front wall of the cover 20, and
An opening / closing member 60 is arranged in a space surrounded by 0 and the holding plate 50.

The opening / closing member 60 is formed in a shape in which a pair of arm portions 62 are continuously and integrally projected on a side surface of a substantially cylindrical opening / closing body 61, and each arm portion 62 fronts the cover 20. Each of the insertion holes 23 perforated in the wall can be opened and closed. That is, the opening / closing member 60 is rotatable in a plane along the front surface of the cover 20 between a position where the insertion opening 23 is closed by the arm portion 62 and a position where the insertion opening 23 is opened. A projecting piece 63 is continuously and integrally projected at the tip of each arm 62, and a return spring 64 made of a coil spring is interposed between each projecting piece 63 and the inner surface of the cover 20. The return spring 64 urges the opening / closing element 60 in the direction of closing the insertion opening 23. Therefore, when the contact of the counterpart connecting device is not inserted into the insertion opening 23, the insertion opening 2
3 is adapted to be kept closed.

At the arm portion 62 of the opening / closing member 60, the insertion opening 23
A sliding contact surface 65 that converts the insertion force of the contactor inserted through the insertion opening 23 into a rotational force that rotates the opening / closing element 60 is formed at a portion corresponding to. The sliding contact surface 65 is the door 6
When the insertion force from the contact element acts on the sliding contact surface 65, the opening / closing element 60 causes the opening / closing element 60 to move toward the direction in which the spring force of the return spring 64 acts in the rotation direction of 0.
It rotates in the direction of opening the insertion opening 23 against the spring force of 4.

By the way, the rear surface of the opening / closing member 60 is an inclined surface 66 that is inclined forward from the vicinity of the center of rotation toward the tip of the arm portion 62, and the rear surface of the opening / closing member 60 is at the central portion with respect to the holding plate 50. A contact is made only in the vicinity, and a gap is formed at a portion facing the inclined surface 66. Further, a protrusion 67 having a substantially triangular cross section having a ridge line substantially orthogonal to the projecting direction of both arm portions 62 is provided in the center of the front surface of the opening / closing member 60,
The front wall of the cover 20 and the front surface of the opening / closing member 60 are separated from each other by the protrusion size of the protrusion 67. Therefore, when the pushing force directed rearward acts only on one arm portion 62, the opening / closing element 60 is inclined by the amount of the gap between the holding plate 50 and the inclined surface 66.
On the other hand, the stopper 26 is formed on the inner surface of the cover 20 so as to prevent the insertion opening 23 from opening when the opening / closing member 60 is tilted as described above, and abuts the protruding piece 63 to prohibit the opening / closing member 60 from rotating. . Therefore, even if some member is inserted into only one of the pair of insertion openings 23, the opening / closing member 6
When 0 is tilted, the stopper 25 prevents the opening / closing member 60 from rotating and the insertion opening 23 is not opened. Further, when the contacts are simultaneously inserted into both the insertion openings 23, the opening / closing element 60 does not tilt, so the opening / closing element 60 rotates without hitting the stopper 26 to open the insertion opening 23,
The tip of the contact inserted through the insertion port 23 has the holding plate 5
It comes into contact with the base metal 44 through the zero through hole 55.
Here, the opening / closing element 60 has the shaft 27 provided in the cover 20 inserted into the shaft hole 68 formed in the central portion of the opening / closing element body 61 to prevent the opening / closing element 60 from being displaced. A play is provided between the shaft hole 68 and the shaft hole 68 such that the opening / closing member 60 can be tilted. Other configurations and operations are similar to those of the first embodiment.

(Embodiment 3) In the above embodiment, an example in which the body 10 and the cover 20 constituting the body 1 are joined together by using the assembly frame 30 is shown, but in this embodiment, FIGS.
As shown in FIG. 3, an example in which the body 10 and the cover 20 are combined without using the assembly frame 30 is shown. That is, the body 10 is provided with flanges 15 on both sides of the opening edge, and each flange 15 is provided with an assembly hole 15a. Also, cover 2
An assembling claw 28 which is inserted into the assembling hole 15a is provided at the rear edge of the 0. The assembling claw 28 has a claw portion 28a protruding outward at the tip portion, and the rear surface of the assembling claw 28 is an inclined surface that is inclined forward toward the tip of the claw portion 28a.

However, when the position of the tip of the assembly claw 28 is aligned with the assembly hole 15a and the cover 20 is pressed against the body 10, the above-mentioned inclined surface abuts the peripheral edge of the assembly hole 15a and the assembly claw 28 bends to assemble. When the claw portion 28a of the claw 28 gets over the assembly hole 15a, the elasticity of the assembled claw 28 causes the claw portion 2 to move.
The rear surface 8a of the flange 15 is locked to the peripheral portion of the assembly hole 15a. Here, since the cover 20 is made of synthetic resin, the assembly claw 28 has elasticity, but it is desirable to form the cover 20 of thermoplastic resin in order to give sufficient elasticity. Moreover, it is desirable that the body 10 is formed of a thermosetting resin in consideration of safety.

By the way, in this embodiment, since the assembly frame 30 is not used, instead of the mounting claw 32 provided on the assembly frame 30, a pair of mounting claws 29 are continuously and integrally projected on both side surfaces of the cover 20. There is. With this configuration, it is possible to connect to the mounting frame 70 for the wiring device. The container body 1 in this embodiment can be replaced with any of the container bodies 1 of Embodiments 1 and 2, and other configurations and functions are the same as those of Embodiments 1 and 2.

(Embodiment 4) In each of the above embodiments, the body 1 corresponding to the unit size of the embedded wiring equipment is used.
In this embodiment, as shown in FIGS. 10 and 11, the body 1 is used which is attached to the surface to be attached so as to be in contact with the surface to be attached. That is, the container body 1 is formed by the base 90 whose rear surface contacts the mounting surface, and the cover body 100 which is attached to the front surface of the base 90. Cover body 1
00 is an inner cover body 100a and an outer cover body 100.
b. The base 90 has fixing holes 91 through which fixing tools such as wood screws are inserted at four corners. By inserting the fixing tools into the mounting surface through the fixing holes 91, the base 90 is fixed to the mounting surface. A partition wall 92 is formed in the center of the front surface of the base 90, and terminal plates 48 to which terminal screws 47 are screwed are arranged on both sides of the partition wall 92. The terminal plate 48 is formed in a substantially L shape, the terminal screw 47 is screwed into one piece, and the other piece is fixed to the base 90 by being press-fitted into the base 90. The fixed piece 44a of the receiving metal 44 is fixed to the other piece of the terminal plate 48.
Here, the receiver 44 is arranged so that the spring body 44b can be expanded and contracted in the front-rear direction, and the contact piece 44c can be moved in the front-rear direction.

By the way, a peripheral wall 93 is formed on the peripheral edge of the base 90 so as to project rearward over substantially the entire circumference. When the base 90 is mounted on a mounting surface, the central portion of the base 90 and the mounting surface are mounted. A gap is formed between the surface and the surface. Further, a portion of the peripheral wall 93 that intersects with the extension line of the partition wall 92 is a knockout portion 94 formed thinly, and if the knockout portion 94 is cut off as necessary, the electric wire 96 can be connected to the base 90 and the mounting surface. It can be introduced during. The knockout portion 94 is formed at two places,
In the base 90, an introduction hole 95 is provided in the vicinity of each knockout portion 94, and the electric wire 96 introduced between the base 90 and the mounting surface through the knockout portion 94 is passed through the introduction hole 95 to the front side of the base 90. It can be pulled out.

On the other hand, the inner cover body 100a is formed in a rectangular parallelepiped shape having an open rear surface. In addition, the inner cover body 100
A holding recess 101 is formed on the front surface of a, and the holding recess 10
A pair of insertion openings 23 are opened in the bottom wall of the No. 1. Holding recess 1
On the peripheral surface of 01, there is formed a pair of locking holes 25 that engages with the locking claws 83 of the intermediate connecting device described in the first embodiment in a concavo-convex manner. On the peripheral portion of the holding recess 101, there is provided a projecting base 102 projecting toward the front side and having a square peripheral edge.

The outer cover body 100b is the inner cover body 100b.
Like a, it has a rectangular parallelepiped shape with an open rear surface, and is formed to cover the inner cover body 100a over substantially the entire surface. A window hole 103 through which the protrusion 102 is inserted is opened on the front wall of the outer cover body 100b. Here, the outer cover body 100b is held by the inner cover body 100a if it is attached to the inner cover body 100a, but if it is necessary to reliably prevent the outer cover body 100b from falling off the inner cover body 100a, Outer surface of body 100a and outer cover body 100
By providing a projection on one of the inner side surface of b and a recess engaging with the projection on the other side, the inner cover body 100a and the outer cover body 100b are engaged in a concavo-convex manner, or the inner cover body 10 is formed.
0a and the outer cover body 100b may be bonded. Further, a synthetic resin having high strength may be used for the inner cover body 100a to provide shape retention, and a synthetic resin having elasticity may be used for the outer cover body 100b to provide impact resistance. Regarding the connection between the base 90 and the cover body 100, a protrusion is provided on one side and a recess is provided on the other side to form an uneven connection. Other configurations and functions are the same as those in the first embodiment, and therefore the description thereof is omitted.

(Embodiment 5) In the present embodiment, with respect to the structure of Embodiment 1, as shown in FIG. 12, the body 1 is formed to have a size corresponding to two unit dimensions of a wiring device. Body 1
Retaining recesses 16 surrounded by retaining walls 24 are formed at two positions on the front surface of each of the retaining recesses 16, and a pair of substantially circular insertion openings 23 are opened in the bottom wall of each retaining recess 16. In addition, the holding wall 24 surrounding each holding recess 16 holds the other side connecting device by engaging concave and convex with a locking claw provided on the other side connecting device at a portion facing each other across a straight line in the direction in which the insertion ports 23 are arranged. A locking hole 25 (see FIG. 1) is formed. In addition, the assembly frame 3
The intermediate piece of 0 has a size approximately twice as large as that of the assembly frame 30 used in the first embodiment, and mounting claws 32 are projectingly provided at both ends thereof.

(Embodiment 6) In this embodiment, as shown in FIG. 13, a connecting device for connecting a mating connecting device having a round pin-shaped contactor 82 and a flat plate-shaped contact which has been conventionally provided. A connecting device for connecting a counterpart connecting device (plug) having a child (blade) is provided in one container 1.
That is, the connecting device corresponding to the round pin-shaped contactor 82 has the same configuration as the connecting device of the first embodiment, and the terminal 4
0 and a receiver 44 (see FIG. 1). On the other hand, a connecting device corresponding to a flat plate-shaped contactor has a conventionally well-known configuration, and has a configuration in which a blade receiving spring having a pair of spring pieces is provided instead of the receiving metal 44. In addition, a pair of insertion openings 17 each having a rectangular opening are formed in the front wall of the body 1 at a portion corresponding to the blade receiving spring, and the contactor (plug blade) inserted into the body 1 through the insertion opening 17. Is introduced between the spring pieces, the contactor is sandwiched from a direction substantially orthogonal to the insertion direction. However, only one holding recess 16 is provided on the front surface of the body 1.

Other structures and functions are the same as those of the fifth embodiment. In this embodiment, by additionally having a connecting device for holding a plug blade of a normal plug, it seems that a problem occurs if the counterpart connecting device easily comes off. In such a case, the other side connection device can be connected using the insertion port 17. (Embodiment 7) In this embodiment, as shown in FIG. 14, the body 1 having three unit dimensions is used and three sets of insertion ports 23 corresponding to the round pin-shaped contacts 82 are provided. Although different points are provided from the fifth embodiment, other configurations and functions are the same as the fifth embodiment.

(Embodiment 8) In this embodiment, as shown in FIG. 15, a container body 1 having three unit dimensions is used, and an insertion port corresponding to a round pin-shaped contactor 82 is used. 23
Is provided for two sets, and further one set of insertion ports 17 corresponding to the flat contacts is provided. Here, the insertion port 17 is arranged between the two insertion ports 23. This configuration is different from the sixth embodiment in that up to two mating connection devices each having a round pin-shaped contactor 82 can be connected, but the other configurations and functions and the same as in the sixth embodiment.

(Embodiment 9) In this embodiment, as shown in FIG. 16, a container body 1 having three unit dimensions is used, and an insertion port corresponding to a round pin-shaped contactor 82 is used. 23
Is provided for one set, and further two sets of insertion ports 17 corresponding to the flat contacts are provided. Here, the two sets of insertion ports 17 are arranged adjacent to each other. This structure is different from the sixth embodiment in that up to two mating connection devices each having a flat plate-shaped contact can be connected, but the other structures and functions and the same as in the sixth embodiment.

[0042]

According to the first aspect of the present invention, a contact piece with which the tip end surface of a round pin-shaped contactor abuts is provided, and a spring body for exerting a spring force in the direction of pushing out the contact piece on the contact piece is provided, and Since the locking part that holds the counterpart connecting device to the body with a comparatively weak holding force is provided, only the contact piece is elastically contacted with the tip end surface of the contactor, and the contact piece is inserted and removed when the contactor is inserted and removed. There is an advantage that a frictional force is not generated between the contactor and the contactor, and a large force is not required for inserting and removing the contactor. Further, by increasing the area of the tip end surface of the contactor and the spring force of the spring body, the contact resistance between the contactor and the contact piece can be made relatively small, so that it has a function of holding the counterpart connection device. The locking part of is to be provided separately from the means such as the spring body for providing the function of reducing the contact resistance. Compared with the conventional structure where the blade receiving spring has both functions, There is an advantage that the contact resistance can be reduced while reducing the holding force of the connection device. As a result, it becomes easy to attach and detach the other party connecting device, and even if the electric wire connected to the other party connecting device is hooked with a foot, etc., the other party connecting device is removed from the body and an accident such as a wire breakage is prevented. It has the effect of being able to do it.

According to the second aspect of the invention, since the spring body and the contact piece are continuously and integrally formed, there are advantages that the number of parts is small, the assembling work is facilitated, and the cost is reduced. According to the invention of claim 3, the spring body and the contact piece are separate bodies, and the contact piece is connected to the terminal through a connecting wire made of a braided wire. Therefore, the current capacity is independent of the spring body. Will be defined by the thickness of, and is advantageous when the current capacity is large.

According to a fourth aspect of the present invention, the body is covered on the front surface side of the base and the base fixed to the mounting surface by a fixing tool whose rear surface contacts the mounting surface and is inserted from the front surface side. Since it is formed with the cover body, there is an advantage that it can be easily attached to the attachment surface without using a separate attachment member. The invention of claim 5 is
The body is formed by a body and a cover, and an assembly hole is opened on one side of the body and the cover, and an assembly claw that projects from the other side and is inserted into the assembly hole is locked to the periphery of the assembly hole. As a result, the body and the cover are joined together, so that there is an advantage that no other member is required when joining the body and the cover. Moreover, if the force is applied in the direction of bringing the body and the cover closer to each other by aligning the position of the assembling claw with the assembling hole, the body and the cover are easily coupled together, so that the assembling work is facilitated. Furthermore, since the body is formed in the unit size of the standard embedded wiring equipment, it can be installed using a mounting frame for general embedded wiring equipment,
There is no need to separately manufacture a member for construction, and there is an effect that cost can be reduced by sharing the construction member. In addition, it is not necessary to newly learn construction technology, and construction can be performed using conventional construction technology.

According to the sixth aspect of the present invention, since the mounting claws that engage with the coupling holes formed in the mounting frame are continuously and integrally projected, a separate mounting claw for mounting the mounting frame is provided. There is an advantage that it is not necessary to use members, the number of parts is reduced, and the structure is simplified. Since the invention of claim 7 has two sets of insertion ports corresponding to the round pin-shaped contacts similar to that of claim 1, like the invention of claim 1, the counterpart connecting device can be easily attached and detached. There is an advantage that even if the electric wire connected to the counterpart connecting device is hooked with a foot or the like, the counterpart connecting device can be detached from the body and an accident such as disconnection of the electric wire can be prevented.
Moreover, the body is 2 of the unit size of the standardized wiring equipment.
Since it has the size of one piece, the most general mounting frame for mounting this kind of wiring equipment is formed so that up to three wiring equipment of unit size can be mounted. Thus, it is possible to use one mounting frame and to arrange it side by side with another wiring device having a unit size such as a switch or an indicator lamp.

According to an eighth aspect of the present invention, there is provided a pair of first insertion ports corresponding to the first mating connector having the round pin-shaped first contactors, and the flat plate-shaped second contactors. Since there is a second insertion port for one set corresponding to the second counterpart connection device having the above, the first insertion port operates in the same manner as in the invention of claim 1 and has a contact resistance. It is possible to hold the other party's connection device with a comparatively small holding force while making it smaller, making it easier to attach and detach the other party's connection device, and hooked the electric wire connected to the other party's connection device with your feet etc. It is possible to prevent disconnection at the time. Moreover, in the case where the counterpart connecting device is easily pulled out and inconvenience occurs, it is possible to deal with it by using the second insertion port, and it is possible to use two different types by using one connecting device. It can meet the demand. Moreover, as in the case of the first aspect of the invention, the use of the mounting frame capable of mounting up to three wiring devices each having a unit size has an advantage that it can be juxtaposed with other wiring devices.

The invention of claim 9 is different from the structure of claim 1 in that it has the size of three wiring devices of unit size, and a maximum of three counterpart connection devices can be connected. . Moreover, as in the case of the first aspect of the present invention, there is an advantage that each counterpart connection device can be easily attached and detached. According to a tenth aspect of the present invention, two sets of first insertion ports corresponding to the round pin-shaped first contactors and one set of second insertion ports corresponding to the flat plate-shaped second contactors are provided. According to the invention of claim 11, the first insertion port for one set corresponding to the first contactor in the shape of a round pin and the two sets corresponding to the second contactor in the shape of a flat plate are provided. It has the second insertion port and the two different types of requirements can be satisfied by using only one connecting device, as in the invention of claim 8.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view showing a first embodiment.

FIG. 3 is a front view showing the first embodiment.

FIG. 4 is a perspective view showing a mounting frame used in the first embodiment.

FIG. 5 shows an example of a partner connection device used in the embodiment,
(A) is a front view, (b) is a side view, and (c) is a bottom view.

FIG. 6 is an exploded perspective view showing a second embodiment.

FIG. 7 is a cross-sectional view showing a second embodiment.

FIG. 8 is an exploded perspective view showing a body used in a third embodiment.

FIG. 9 is a perspective view showing the appearance of the third embodiment.

FIG. 10 is an exploded perspective view showing a fourth embodiment.

FIG. 11 is a perspective view showing the appearance of Example 4.

FIG. 12 is a front view showing a fifth embodiment.

FIG. 13 is a front view showing a sixth embodiment.

FIG. 14 is a front view showing a seventh embodiment.

FIG. 15 is a front view showing an eighth embodiment.

FIG. 16 is a front view showing the ninth embodiment.

[Explanation of symbols]

 1 body 10 body 15a assembly hole 16 holding recess 17 insertion opening 20 cover 23 insertion opening 25 locking hole 28 assembly claw 29 mounting claw 32 mounting claw 40 terminal 44b contact piece 45 spring body 46 connection wire 70 mounting frame 74a coupling hole 74b coupling hole 82 contactor 83 locking claw 90 base 100 cover body

Claims (11)

[Claims] 1. A body having a front end having an insertion opening into which a round pin-shaped contactor having a flat end surface provided in a counterpart connection device is inserted, and a body inserted into the body and inserted through the insertion opening. A contact piece that contacts the tip surface of the contactor, a terminal that is installed inside the body and electrically connects the contact piece to an external circuit, and a spring force that pushes the contactor out of the body to the contact piece And a locking portion formed on the body so as to hold the counterpart connecting device to the body with a comparatively weak holding force against the spring force of the spring body. Connection device. 2. A spring body is formed by bending a strip plate in a meandering shape, a contact piece is continuously and integrally formed at one end portion of the strip plate, and the other end portion of the strip plate is joined to a terminal. The connection device according to claim 1, wherein: 3. The connecting device according to claim 1, wherein the spring body is a coil spring, and the contact piece is connected to the terminal via a connecting wire made of a braided wire. 4. The body is composed of a base whose rear surface abuts on the mounting surface and is fixed to the mounting surface by a fixture inserted from the front side, and a cover body which is covered on the front side of the base. The connection device according to claim 1, wherein: 5. The body comprises a synthetic resin body in which terminals, contact pieces, and a spring body are housed and a front surface is opened, and a synthetic resin cover which covers the opening of the body and has an insertion opening on a front wall. It is formed to the unit size of the embedded wiring equipment standardized by and has an assembly hole opened on one side of the body and cover, and an assembly claw that protrudes from the other side and is inserted into the assembly hole is assembled. 2. The connecting device according to claim 1, wherein the body and the cover are joined by being locked to the peripheral portion of the hole. 6. A cover is provided on both sides of the cover with mounting claws that continuously and integrally engage with a coupling hole formed in a mounting frame standardized for an embedded wiring device. The connection device according to claim 5. 7. A front end surface provided on a mating connection device, comprising a body having a size equal to two unit dimensions of a wiring device attached to a mounting frame standardized for an embedded wiring device. A contact piece provided with two sets of insertion ports into which round pin-shaped contacts having a flat surface are inserted in the front surface of the body, and contacting the tip end surface of the contact that is inserted into the body and inserted through the insertion port. And a terminal that is installed inside the body and electrically connects the contact piece to an external circuit,
A spring body that applies a spring force to the contact piece in a direction to push the contactor out of the body, and a device that holds the counterpart connection device on the body with a relatively weak holding force against the spring force of the spring body. A connecting device comprising a locking portion formed on the body. 8. A first mating connection device is provided with a container body having a size of two unit dimensions of a wiring device attached to a mounting frame standardized for an embedded wiring device. And a pair of first insertion ports into which round pin-shaped contacts having a flat end surface are inserted, and one set into which flat plate-shaped contacts provided in the second mating connector are inserted. The second insertion port is provided on the front surface of the body, and the contact piece that is housed in the body and comes into contact with the tip end surface of the contact inserted through the first insertion port and the contact piece that is housed in the body are external A terminal electrically connected to the circuit,
A spring body that applies a spring force to the contact piece in a direction to push the contactor out of the body, and a device that holds the counterpart connection device on the body with a relatively weak holding force against the spring force of the spring body. And a blade receiving spring for holding the second contactor, which is housed in the body and inserted through the second insertion opening, from the direction intersecting the insertion direction. Characterized connection device. 9. A front end surface provided on a mating connection device, which comprises a body having a size of three unit dimensions of a wiring device attached to a mounting frame standardized for an embedded wiring device. A contact piece that has three sets of insertion ports into which round pin-shaped contacts having a flat surface are inserted in the front surface of the body and comes into contact with the tip end surface of the contact that is inserted into the body and inserted through the insertion port. And a terminal that is installed inside the body and electrically connects the contact piece to an external circuit,
A spring body that applies a spring force to the contact piece in a direction to push the contactor out of the body, and a device that holds the counterpart connection device on the body with a relatively weak holding force against the spring force of the spring body. A connecting device comprising a locking portion formed on the body. 10. A device provided with a body having a size corresponding to three unit dimensions of a wiring device attached to a mounting frame standardized for an embedded wiring device, and provided in a first counterpart connection device. And two sets of first insertion ports into which round pin-shaped contacts having flat end surfaces are inserted, and one set into which the flat-shaped contacts provided in the second mating connection device are inserted. The second insertion port is provided on the front surface of the body, and the contact piece that is housed in the body and comes into contact with the tip end surface of the contact inserted through the first insertion port and the contact piece that is housed in the body are external A terminal that electrically connects to the circuit, a spring body that applies a spring force to the contact piece in the direction to push the contact out of the body, and a comparatively weak holding of the mating connection device against the spring force of the spring body A locking part formed on the body so as to be held on the body by force, and inserted through the second insertion port which is housed in the body. And a blade receiving spring for sandwiching the separated second contactor from a direction intersecting the insertion direction. 11. A first mating connection device, comprising a container body having a size of three unit dimensions of a wiring device attached to a mounting frame standardized for an embedded wiring device. And a pair of first insertion ports into which round pin-shaped contacts having a flat tip surface are inserted, and two sets into which flat plate-shaped contacts provided in the second mating connector are inserted. The second insertion port is provided on the front surface of the body, and the contact piece that is housed in the body and comes into contact with the tip end surface of the contact inserted through the first insertion port and the contact piece that is housed in the body are external A terminal that electrically connects to the circuit, a spring body that applies a spring force to the contact piece in the direction to push the contact out of the body, and a comparatively weak holding of the mating connection device against the spring force of the spring body A locking part formed on the body so as to be held on the body by force, and inserted through the second insertion port which is housed in the body. And a blade receiving spring for sandwiching the separated second contactor from a direction intersecting the insertion direction.