JPH10326635A - Connector for coaxial cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial cable connector whose case is constructed small, whereby it is practicable to install a plurality of such cases in a flush type box originally designed for one piece. SOLUTION: A case 1 is composed of a cover 2 of a synthetic resin in the form of approx. a box whose back is left open and a shield plate 3 enclosing the back of the cover 2. A receptacle 11 is provided on the front face of the cover 2 so as to admit installation of a plug wired at the end of a coaxial cable. A connecting terminal part for installation of another coaxial cable is furnished on the shield plate 3 to work as the rear face of the cover 2 and is connected electrically to the receptacle 11. The cover 2 is formed into a size corresponding to one piece of the unit dimension of a large square gang- type wiring apparatus capable of being installed in three pieces in a mounting frame of the wiring apparatus conforming to JIS Standard, and a plurality of cases 1 can be installed in an embedded type box originally designed for one piece.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial cable connector mainly used for connecting an antenna line to a television.

[0002]

2. Description of the Related Art As a coaxial cable connector of this type,
A case is formed to the size of 1.5 units of the unit size of the wiring device that can be mounted on the mounting frame on which the wiring device for embedded wiring is mounted, and the plug wired to the end of the coaxial cable is connected. In some cases, a receptacle is provided on the front of the case, and a connection terminal for connecting the inner conductor and the outer conductor of another coaxial cable is provided on the back of the case.

[0003]

In the coaxial cable connector having the above-described structure, the size of the case is 1.
Since it is formed in dimensions of five pieces, there was a problem that a plurality of coaxial cable connectors could not be attached to a single-type buried type box buried in a buried hole provided in a construction surface such as a wall surface. .

Further, since an ohmic band or the like for holding a coaxial cable is used for the connection terminal, when the coaxial cable is mounted on the connection terminal, the coaxial cable must be screwed with a plurality of screws. There was also a problem that labor was required. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a coaxial cable connector in which the size of a case is reduced and installation work is reduced.

[0005]

According to the first aspect of the present invention, in order to achieve the above object, one of the unit dimensions of a wiring device which can be mounted on a mounting frame on which a wiring device for embedded wiring is mounted is three. The case consists of a roughly box-shaped synthetic resin cover that is formed to the size of a minute and has an open back, and a conductive shield plate that covers the back of the cover. Locking claw pieces are integrally formed on both side surfaces of the cover, and a substantially cylindrical internal contact that fits with the inner conductor of the plug to which the coaxial cable is connected is disposed concentrically with the internal contact. A receptacle formed of a substantially cylindrical external contact having a diameter larger than that of the internal contact whose inner peripheral surface is pressed against the outer peripheral surface of the outer conductor of the plug is provided on the front surface of the cover, and is electrically connected to the receptacle. As well as other coax Buru wherein the comprises a connection terminal portion connected by providing the shield plate.

According to a second aspect of the present invention, in the first aspect of the invention, the connection terminal portion is attached to the shield plate so as to be openable and closable, and is fixed to the shield plate with one fixing screw to connect the outer conductor of another coaxial cable. It is characterized by comprising a holding metal fitting held between the shield plate and a terminal spring electrically insulated from the shield plate and holding an internal conductor of another coaxial cable.

According to a third aspect of the present invention, in the second aspect of the present invention, the inner contact of the receptacle and the terminal spring are integrally formed, and the connection piece extending from the periphery of the outer contact of the receptacle is a shield plate. It is characterized by being fixed by caulking. According to the invention of claim 4, claims 1 to 3 are provided.
The present invention is characterized in that engaging holes communicating with the inside are provided on both side surfaces of the cover, and locking pieces are provided on both side edges of the shield plate so as to be releasably locked with the engaging holes.

According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the inner peripheral surface of the embedding type box is provided so that two cases can be arranged side by side in the truncated conical type box having an open front surface. A chamfered portion having a taper for preventing interference is formed at four corners of the cover. According to a sixth aspect of the present invention, in the fifth aspect, the thickness of the locking claw is increased, and the cross-sectional shape of the locking claw is inclined from the front side of the cover to the rear side of the cover as going outward. It is characterized by being formed in such a cross-sectional shape.

According to a seventh aspect of the present invention, in the invention of the fifth or sixth aspect, a position is set from the back side of the cover to a position where the case is arranged in the above-mentioned embedding box and enters the opening edge of the embedding box. A recess for preventing interference with the recessed box is formed up to a position on the front side of the cover.
The recess is formed in a groove shape.

[0010] According to a ninth aspect of the present invention, in the invention of the fifth to eighth aspects, a cutout for preventing interference with the four corners of the shield plate is formed in the chamfered portion. According to a tenth aspect, in the first to ninth aspects, the connection terminal portion is formed so that the other coaxial cable is attached in a direction parallel to the longitudinal direction of the cover.

[0011]

Embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) The coaxial cable connector of this embodiment is shown in FIG.
This will be described with reference to FIGS. This coaxial cable connector is used, for example, when connecting an antenna line to a television, and three coaxial cable connectors 1 can be mounted on a mounting frame to which a wiring device for embedded wiring is mounted. The case 1 is formed to have a size corresponding to one unit size of the wiring device, and the case 1 is formed by a box-shaped cover 2 having an open back and a shield plate 3 for closing the back of the cover 2. 1 has a spring piece 18 described later.
And a terminal case 22 are provided. Note that the unit size of the wiring device may be set to an appropriate size [in Japan, it is standardized by JIS as “large-sized continuous wiring device” (see JIS C 8357, etc.)).

The cover 2 is made of a synthetic resin (for example, ABS resin).
A step 46 is formed on both sides of the cover 2, and the step 46 is opened to the side and fitted with a holding claw of a metal mounting frame. A coupling recess 47 is formed. A pair of locking claw pieces 48 are formed on side edges of the steps 46, 46, respectively, so as to engage with holding holes of the synthetic resin mounting frame. Engagement holes 49 communicating with the inside of the cover 2 are formed on both side surfaces of the cover 2. A so-called DIN type receptacle 11 to which a plug 6 wired to an end of a coaxial cable 5 can be connected as shown in FIG. 13 is provided in a concave portion 12 having a circular cross section provided at the center of the front surface of the cover 2. Have been. A substantially cylindrical support cylinder 13 protruding from the bottom of the recess 12 is provided concentrically with the recess 12. The external contact 14 is formed by bending a conductive sheet metal, and is disposed in the recess 12 with a gap between the outer contact 14 and the support cylinder 13 in which the outer conductor 6a of the plug 6 enters. From the rear edge of the external contact 14, a pair of connecting pieces 15a having different lengths,
15b is extended. Here, as shown in FIG. 3 (a), the connection pieces 15a, 15b are inserted into insertion holes 12a, 12a formed in the bottom of the recess 12, and the longer one of the two connection pieces is used. The connection piece 15b is bent at a predetermined angle after being twisted by about 45 degrees and is housed in the cover 2, and the connection piece 15a with the shorter leg is also twisted by about 45 degrees,
It is attached to the cover 2.

The spring piece 18 is made of a conductive material, and is provided with a substantially cylindrical internal contact 17 from one end of the central piece 18a in a direction substantially perpendicular to the plane direction. A terminal spring 20 extending in a direction opposite to the contact 17; the terminal spring 20 is constituted by a pair of contact spring pieces 21 arranged opposite to each other; the internal contact 17 is disposed in the support cylinder 13 of the cover 2; The terminal spring 20 is housed in a cylindrical portion 23 of a terminal case 22 described later (see FIG. 6).

The terminal case 22 is formed of a transparent insulating material such as a synthetic resin. A flange piece 24 is formed around a cylindrical portion 23 having a bottomed cylindrical shape in which the terminal spring 20 is housed. At both ends of the piece 24, projecting pieces 24 a projecting from the inner wall of the cover 2 are provided. An insertion hole 28 through which the internal conductor of the coaxial cable is inserted is formed in the bottom of the cylindrical portion 23, and a peripheral wall 23 a that guides the internal conductor protrudes from the bottom surface of the cylindrical portion 23 on the side facing the shield plate 3. (See FIG. 7).

Here, when the plug 6 to which the coaxial cable is connected is inserted into the receptacle 11, the outer conductor 6a of the plug 6 is pressed against the outer peripheral surface of the support cylinder 13 and the inner peripheral surface of the external contact 14, and The conductor 6a and the external contact 14 are electrically connected. On the other hand, an insertion hole 16 is formed in the center of the front surface of the support cylinder 13, and the inner conductor 6 b of the plug 6 is inserted into the insertion hole 16. An internal contact 17 is provided in the support tube 13, and the inner conductor 6 b of the plug 6 is fitted with the inner contact 17, and the inner conductor 6 b and the inner contact 17
Are electrically connected.

At the center of the left and right side edges of the conductive shield plate 3, a locking piece 53 is formed by bending, and at the center of the locking piece 54, a projecting piece 54 projecting outward is formed. When the engaging piece 53 is inserted into the engaging hole 49 provided in the cover 2, the edge of the engaging hole 49 and the projecting piece 54 are engaged, and the shield plate 3 is attached to the cover 2. At this time, the shorter connecting piece 15 of the foot of the external contact 14 attached to the cover 2
is inserted into the insertion hole 43a provided in the shield plate 3 and the connection piece 15a is caulked with the caulking piece 43, so that the connection piece 15a is fixed to the shield plate 3 and the external contact 14
And the shield plate 3 are electrically connected. A cutout portion 33 is formed at a portion of the shield plate 3 corresponding to the cylindrical portion 23 of the terminal case 22, and a pair of holding pieces 34 bent rearward are formed on both left and right edges of the cutout portion 33. Is done.
The holding groove 34 is formed in the holding piece 34, and the holding groove 3 is formed.
A shaft leg 37 extending from the holding metal fitting 36 is inserted into 5. The shaft leg 37 is bent into an L shape, and
Is held openably and closably with respect to the shield plate 3. An insertion hole 38 is formed in the holding member 36 so that the fixing screw 3
9 is screwed into the screw hole 40 formed in the shield plate 3 through the insertion hole 38 and the ring spring 41 so that the holding member 36 is fixed to the shield plate 3. The opening / closing angle of the holding member 36 may be restricted by a stopper (not shown) (for example, a dowel protruding from a portion that comes into contact with the cylindrical portion 23 of the holding member 36). The stopper may be made to work in the opened state and the opened state of 180 degrees.

That is, the connection terminal part 4 is
7 and a terminal spring 20 formed integrally with the external contact 14
And a holding member 36 held openably and closably with respect to the shield plate 3 electrically connected to the terminal spring 20.
The press fitting 36 is electrically insulated from the terminal case 22 by the terminal case 22. By the way, in order to connect the coaxial cable 5 to the connection terminal portion 4, the inner conductor 51 of the coaxial cable 5 is passed through the insertion hole 28 formed in the bottom surface of the cylindrical portion 23 of the terminal case 22 with the holding member 36 opened. After being sandwiched between the pair of contact spring pieces 21, the base of the inner conductor 51 is bent so as to be parallel to the shield plate 3, and then the holding member 36 is closed, and the outer conductor 52 is connected to the shielding plate 3 and the holding member 36. By screwing the fixing screw 39 to the shield plate 3 in a state sandwiched between the inner conductor 51 and the terminal spring 20, the outer conductor 52 and the shield plate are electrically connected to each other. Therefore, the coaxial cable connected to the plug inserted into the receptacle and the coaxial cable connected to the connection terminal portion 4 are electrically connected.

A positioning projection 29 is integrally formed on one end surface of the cover 2 on the side of the shield plate 3, and a substantially semicircular recess 30 is formed in the positioning projection 29. The coaxial cable 5 is positioned in the recess 30 so as to support the coaxial cable 5 to prevent lateral contact on the left and right. Therefore, the recess 30 formed in the positioning projection 29
When the coaxial cable 5 is positioned inside and the holding metal member 36 is screwed to the shield plate 3, the coaxial cable 5
Is fixed at a fixed position and can be fixed only by screwing, so that the workability is improved and the work time is shortened.

As shown in FIGS. 11 and 12, the coaxial cable connector 1 is mounted on a mounting frame 70 on which three wiring devices for embedded wiring can be mounted. As described above, since the case 1 is formed in the same size as the unit size of the wiring device, up to three cases 1 can be mounted on the mounting frame 70. The mounting frame 70 is a synthetic resin molded product, and a left piece 72 a of left and right side pieces surrounding the opening window of the mounting frame 70.
Is formed with a holding hole 73 with which a locking claw piece 48 projecting from a side edge of the cover 2 is engaged. On the other hand, the right piece 72b is formed in an L-shaped cross section, a portion corresponding to the coupling claw piece 48 is opened, and a release piece 75 is formed in the opening. An operation projection 76 is provided on the release piece 75, and holding holes 77 are formed on both sides of the operation projection 76, respectively. Also, the upper and lower mounting pieces 74a, 7 surrounding the opening window of the mounting frame 70.
4b is formed with a long mounting hole 78 on each side.
A box screw for fixing the mounting frame 70 to an embedded box or the like embedded in the wall surface is inserted into the mounting hole 78.
A decorative plate (not shown) is mounted on the front surface of the mounting frame 70, and the decorative plate is fixed to the mounting frame 70 by plate screws that are screwed into screw holes 79, 79 formed in the mounting pieces 74a, 74b, respectively. .

Here, both side pieces 72a, 72 of the mounting frame 70 are provided.
The case 1 can be mounted on the mounting frame 70 by inserting the locking claw pieces 48 provided on the cover 2 into the holding holes 73 and 77 provided on the b. Also, the case 1 is attached to the mounting frame 70.
If the operation protruding piece 76 is squeezed with the tip of the driver or the like, the locking between the locking claw piece 48 and the holding hole 77 is released.
The case 1 can be removed from the mounting frame 70. Although the illustrated mounting frame 70 is made of a synthetic resin, in the case of a metal mounting frame, the case 1 is attached to the mounting frame by fitting the holding claws of the metal mounting frame into the coupling recesses 47. Can be attached. In addition, a window hole for exposing the front surface of the case 1 and an insertion hole for inserting a plate screw are formed in the decorative plate.

By the way, in this coaxial cable connector,
The shield plate 3 is attached to the cover 2 by inserting the locking pieces 53 provided on the shield plate 3 into the engagement holes 49 provided on the cover 2 and locking the protruding pieces 54 with the edges of the engagement holes 49. However, as shown in FIG. 10, rectangular frame-shaped engagement frames 31 are respectively extended from central portions of both side edges in the longitudinal direction of the shield plate 3, and the engagement frames 31 are formed on the cover 2. The cover 2 and the shield plate 3 may be integrally connected to each other by engaging with the engagement protrusion so as to surround the periphery of the engagement protrusion (not shown).

The shield plate 3 is formed with a groove-like concave portion 55 which runs on the side of the screw hole 40 and runs in the longitudinal direction of the shield plate 3. This is because the fixing screw 39 is screwed into the screw hole 40 when fixing the holding member 36 to the shield plate 3, and the tensile strength when tightening the fixing screw 39 is increased by the concave portion 55. Therefore, the tensile strength is increased by the concave portion 55, and the shield plate 3 is not deformed by the screw tightening.

(Embodiment 2) A coaxial cable connector according to this embodiment will be described with reference to FIGS. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted. The case 1 is formed to have a size corresponding to one unit size of a wiring device that can be mounted on three mounting frames on which a wiring device for embedded wiring is mounted. The cover 2 is made of a synthetic resin (for example, an ABS resin) and has a conductive shield plate 3 that covers the back surface of the cover.

Steps 46 and 46 are provided at both ends of the case 1 in the longitudinal direction.
A pair of locking claws 48 are provided on the side edge of the step 46 in the longitudinal direction of the case 1 to engage with the holding holes of the synthetic resin mounting frame. The locking claw piece 48 is formed in a cross-sectional shape that is inclined from the front side of the cover 2 to the back side of the cover 2 as going outward, and is formed thicker than in the first embodiment. , Locking claw piece 48
The strength of is improved. Therefore, due to the tensile force and impact applied to the coaxial cable during and after construction, the locking claw 4
8 can be prevented from being damaged.

Here, a chamfered portion 2a having a taper is formed at four corners of the cover 2, and the chamfered portion 2a is formed.
A notch 57 is formed at the end on the side of the shield plate 3 in order to avoid interference between the end of the chamfer 2a and the corner of the shield plate 3. Further, when the mounting frame to which the case 1 is attached is disposed in the recessed box, the recessed box is provided from the end face of the cover 2 on the shield plate 3 side so that the cover 2 does not interfere with the recessed box. A groove 56 serving as an interference preventing recess for avoiding interference with the cover 2 is formed up to the position of the cover 2 on the front side from the position where the cover 2 enters the opening edge. Here, the groove 56 is stopped at a position above the position where the cover 2 enters the embedded box, and when the mounting frame to which the case 1 is attached is disposed in the embedded box, the groove 56 is closed. Since the case 56 is not visible from the outside, the appearance of the case 1 can be improved.

As shown in FIGS. 18A to 18C, the case 1 is made of an elastic synthetic resin (for example, ABS).
The mounting frame 80 is made of resin. Here, a description will be given of a synthetic resin mounting frame 80 ′ having substantially the same shape as the mounting frame 80 and to which the case 1 is mounted. The mounting frame 80 'is, as shown in FIGS.
A strip-shaped fixed beam portion 84 and a movable beam portion 85 are provided on the peripheral back side of the opening window 81 so as to face each other along the longitudinal direction of the opening window 81. The movable beam portion 85 is separated from one of the side frame pieces 83b of the pair of side frame pieces 83a and 83b along the longitudinal direction of the mounting frame 80, and is integrally connected to the side frame piece 83b at both ends by connecting portions 86. It is.

The movable beam 85 is supported by a pair of narrow ribs 87 extending integrally from the side frame 83b, and a gap formed between the movable beam 85 and the side frame 83b is formed. The rib 87 is divided into three portions (each portion is hereinafter referred to as slits 8a to 8c). Further, a pair of slots 9 having a long hole shape is provided in a portion near each rib 87 of the side frame piece 83b in order to make the movable beam portion 85 easily bendable.

In the fixed beam portion 84 and the movable beam portion 85, three pairs of locking grooves 84a and 85a for locking the locking claw pieces 48 projecting from both side edges of the case 1 are provided at equal pitches. It is. Therefore, when attaching the case 1 to the mounting frame 80 ', the locking claw pieces projecting from one side edge of the case 1 to the mounting frame 80' from behind the mounting frame 80 'as shown in FIG. When the case 48 is moved along the tapered surface 84e of the guide portion 84 and inserted into the locking groove 84a, and the case 1 is pushed in from behind, the locking protruding from the other side edge as shown in FIG. Claw piece 48 is tapered surface 85e of guide portion 85
25, and as shown in FIG.
The case 1 can be fitted to the mounting frame 80 ′ by the engagement of the engagement groove 8 with the engagement groove 85 a. At this time, the front side of the case 1 projects from the opening window 81.

The fixed beam 84 and the movable beam 8
5 and a part of the front side of the case 1 in a state where the locking claw pieces 48 are locked in the locking grooves 84a and 85a between the base of the mounting frame 80 'and the edge of the opening window 81 of the mounting frame 80'. Abutting portion 84 to abut
d and 85d are provided, and the movement of the case 1 to the front side can be restricted by the contact portions 84d and 85d.

On the other hand, in order to remove the case 1 from the mounting frame 80 ', a tip of a driver or a jig dedicated to removal is inserted into an instrument removal hole 84c formed between the locking grooves 84a of the fixed beam portion 84. If the part is inserted and the case 1 is pushed toward the movable beam 85 side by the tip of the jig, the movable beam 85 can be flexed with a small force by the principle of leverage, and the fixed beam 84 side The case 1 can be removed from the mounting frame 80 'by releasing the locking between the retaining groove 84a and the locking claw piece 48 of the case 1.

A recess 82 is formed in each of the connecting pieces 83c and 83d surrounding the opening window 81 and orthogonal to the side frame pieces 83a and 83b. In each of the recesses 82, a mounting frame 80 'is provided with a switch box or the like. A long hole 88 through which a box screw is inserted and a screw insertion hole 89 through which a screw for directly attaching the mounting frame 80 'to a construction surface such as a wall surface is inserted so that the box screw can be attached to the mounting box. And scissor fittings (not shown) used when attaching to a wall panel or the like forming a construction surface.
Is provided with a scissor fitting locking hole 184.

At four corners of the mounting frame 80 ', decorative plate locking holes 18 for locking locking projections 103 protruding from the back of a synthetic resin decorative plate 100 having an insulating property.
9 is provided, and the decorative plate 100 can be detachably attached to the front side of the attachment frame 80 '. Next, the decorative plate 100 will be described with reference to FIGS.

At the substantially center of the decorative plate 100, there is provided an opening window 101 for exposing the front side of the case 1 mounted on the mounting frame 80 '. The width dimension of the decorative plate 100 is
The width of each of the mounting frames 80 'is larger than the width of each of the mounting frames 80'.
When it is attached, the mounting frame 80 'fits inside the decorative plate 100 (see FIG. 29), and the leading edge of the peripheral wall of the decorative plate 100 almost comes into contact with the construction surface. Here, the mounting frame 8 is provided inside the peripheral wall of the decorative plate 100.
A plurality of regulating ribs 104a to 104c for restricting the movement of the decorative plate 100 in a state where the decorative plate 100 is attached to the mounting frame 80 'are provided to prevent the decorative plate 100 from rattling. (See FIGS. 20 and 26). The decorative plate 100
Instead of providing the regulating ribs 104a to 104c on the inner peripheral wall of the decorative plate 100 ', an abutting portion 107 contacting the peripheral edge of the mounting frame 80' is provided over the entire inner peripheral wall of the decorative plate 100 'as shown in FIG. Also in this case, the play of the decorative plate 100 against the mounting frame 80 'can be prevented.

On the back side of the decorative plate 100,
When attached to the mounting frame 80 ', the ridges 108a to 108 fit into the slits 8a to 8c of the mounting frame 80', respectively.
8c are arranged. Here, each of the protruding strips 108a to 108
The dimension of 8c is such that there is only a slight gap between the inner peripheral surface of each of the slits 8a to 8c and each of the ridges 108a to 108c when fitted into each of the slits 8a to 8c of the mounting frame 80. The movable beam 8 of the mounting frame 80 '
5 is restricted so that the locking of the locking claw 48 of the case 1 with the locking grooves 85a and 84a of the movable beam portion 85 and the fixed beam portion 84 is not easily released. It is.

On the other hand, the decorative plate 10 is
As shown in FIG. 29 (a), a jig (eg, the tip of a driver) 120 is inserted into a notch 106 formed on one side wall along the longitudinal direction of the decorative plate 100 to remove the mounting frame. By applying a force on the front side to 80 ', the locking between the locking projection 103 and the decorative plate locking hole 189 is released, and the decorative plate 100 can be removed from the mounting frame 80'.

In this embodiment, the decorative plate 100 made of synthetic resin is used. However, when a decorative plate made of metal (not shown) is used, as shown in FIG.
A mounting frame 8 having a mounting screw hole 190 into which a mounting screw for mounting a metal decorative plate is screwed is formed in the recess 82.
0 ". The mounting frames 80 ', 80"
In this case, all the locking grooves 84a and 85a of the fixed beam portion 84 and the movable beam portion 85 are provided at equal pitches by six, so that the mounting position of the case 1 with respect to the opening windows 81 of the mounting frames 80 'and 80 "can be adjusted. There is an advantage that it can be arbitrarily selected from several types, but on the other hand, the mounting frame 8
As the mounting positions of the case 1 with respect to 0 ', 80 "increase, it becomes necessary to arrange the decorative plates 100 having the opening windows 101 corresponding to the respective mounting positions.

To limit the mounting position so that three cases 1 can be mounted side by side, FIG.
34 to 34, the fixed beam portion 84 and the movable beam portion 85
Partition ribs 2 in the vicinity of the respective locking grooves 84a, 85a.
01 may be protruded. That is, even if the case 1 is to be mounted at a position other than the mounting position where three cases 1 can be arranged side by side, the partition ribs 201 protruding between each pair of the locking grooves 84a and 85a interfere with the case 1, and the case 1 1 cannot be attached. Each partition rib 201 is provided at a position so as to come into contact with the case 1 in a state where the case 1 is mounted on the mounting frame 80,
The rattling of the case 1 can be suppressed. 33 and 34, the mounting frame 80 is brought into contact with the case 1 from both the lateral direction and the upward direction by providing the partition rib 201 with a stepped portion 201a. It is designed to prevent rattling more reliably.

As shown in FIG. 35, a through groove 194 is provided on the periphery of the decorative plate locking hole 189 provided at each of the four corners of the mounting frame 80 so as to leave a part thereof. Even if the shape 80 is slightly deformed, the effect of the deformation hardly reaches the decorative plate mounting portion 195 supported by the narrow supporting piece 189 cantilever, so that the decorative plate 100 can be securely mounted to the mounting frame 80. it can.

Incidentally, the mounting frame 80 is standardized.
Dimensions equivalent to three large square wiring devices (three modules
So-called single-panel type with only one opening window 81
However, as shown in FIGS. 36 to 38,
An opening window 81 of three module dimensions is orthogonal to the longitudinal direction.
So-called double mounting frame 80 arranged in the direction₁May be used
No. In this case, as shown in FIGS.
What is necessary is just to use the double type decorative plate 100 ".
The basic configuration is almost the same as the above series type, so common
The same reference numerals are given to the portions to be
You. This mounting frame 80 ₁Approximately at the center of the three module dimensions
Opening window 81₁, 81_TwoAre aligned in the direction perpendicular to the longitudinal direction.
All the windows 81₁, 81_TwoPartition the center
A fixed beam portion 84 "is provided on the frame piece. This fixed beam portion 8 is provided.
As shown in FIG. 37, locking grooves 84
There are provided a total of three sets, each pair having a constant pitch a. What
Note that a partition rib 201 is provided outside the set of the locking grooves 84a.
It is protruding. Also, the width of the decorative plate 100 "
Is the mounting frame 80₁Is larger than each width dimension. This
Mounting frame 80 like₁And a decorative plate 100 "
Then, the single mounting frame 80 and the decorative plate 100 are
Compared to the case where the case 1 and other wiring devices are arranged using
Therefore, there is an advantage that the number of parts can be reduced. Also,
The number and combination of wiring devices that can be
And increase usability.
There are points.

By the way, in the case 1 of the coaxial cable connector of the present embodiment, since the tapered chamfered portions 2a are formed at the four corners of the cover 2, a truncated cone having an open front surface as shown in FIG. Embedded box 130 (so-called,
Even when two cases 1 are connected and attached to a (C-shaped round box), the chamfered portions 2a are provided at the four corners of the cover 2 so that the side surface of the cover 2 and the side peripheral surface 135 of the embedded box 130 can be connected. As shown in FIG. 43, two cases 1 can be connected and mounted in the recessed box 130 with the longitudinal direction of the case 1 up and down, as shown in FIG. The degree of freedom of the arrangement position of 1 can be increased. The case 1 needs to have a shape such that, when two of the cases 1 are provided in the above-mentioned buried box 130, the front side of the case 1 protrudes from the opening surface of the buried box 130 and protrudes from the construction surface. There is. In addition, holes 132, 132 for inserting electric wires are formed in the bottom surface 134 and the side peripheral surface 135 of the embedded type box 13, and a flange portion 131 is provided on the front side of the side peripheral surface to protrude all around. I have.

(Embodiment 3) In the coaxial cable connector of Embodiment 2, as shown in FIG.
Reference numeral 6 is provided so as to hold the coaxial cable 5 in a direction substantially orthogonal to the longitudinal direction of the case 1. Therefore, as shown in FIG. 44 (b), when two cases 1 are juxtaposed in an embedded type box 130 formed of a so-called C-shaped round box, the coaxial cable 5 is connected from the connection terminal portion 4 to the case 1
Since it extends in a direction substantially perpendicular to the longitudinal direction of the cable, the scissors fitting 136 for fixing the mounting frame (not shown) on which the case 1 is disposed to the construction surface interferes with the coaxial cable 5, and wiring is difficult. There was a problem.

Therefore, in the coaxial cable connector of the present embodiment, as shown in FIG. 45 (a), the cylindrical portion 23 of the terminal case 22 is disposed at one end in the longitudinal direction of the case 1, and the cylindrical portion 2
A notch 33 is formed in a portion of the shield plate 3 corresponding to the notch 3, and a pair of holding pieces 34 are provided on both left and right side edges of the notch 33. A holding groove 35 is formed in the holding piece 34,
A shaft leg 37 extending from the holding metal fitting 36 is inserted into the holding groove 35, and the holding metal fitting 36 is arranged to be openable and closable in a direction along the longitudinal direction of the case 1. Therefore, when the coaxial cable 5 is connected to the terminal connection part 4, the coaxial cable 5 extends from the connection terminal part 4 in the direction along the longitudinal direction of the case 1, and as shown in FIG. And the scissors 136 do not interfere,
Wiring work is easier.

The first embodiment is the same as the first embodiment except for the arrangement of the connection terminals 4.
Or 2, the same components are denoted by the same reference numerals and description thereof will be omitted. In the coaxial cable connector of the first embodiment, it goes without saying that the connection terminal portion 4 may be arranged as in the present embodiment.

[0044]

According to the first aspect of the present invention, as described above, three wiring units can be mounted on the mounting frame on which the wiring device for embedded wiring is mounted. The case consists of a substantially box-shaped synthetic resin cover with an open back and a conductive shield plate that covers the back of the cover. A substantially cylindrical internal contact formed integrally with both side surfaces of the plug and fitted with the inner conductor of the plug to which the coaxial cable is connected; and an outer peripheral surface of the outer conductor of the plug arranged concentrically with the inner contact and A receptacle formed of a substantially cylindrical outer contact having a diameter larger than the inner contact whose inner peripheral surface is pressed against the front surface of the cover, and electrically connected to the receptacle and another coaxial cable. Connection terminal to which is connected Since the is provided on the shield plate, there is an effect that it is possible to connect the coaxial cable easily. In addition, since the case is reduced in size and the case is formed in a size corresponding to one unit size of the wiring device, a plurality of cases can be arranged in one embedded type box. is there.

According to a second aspect of the present invention, the connection terminal portion is attached to the shield plate so as to be openable and closable, and is fixed to the shield plate with a single fixing screw to hold the external conductor of another coaxial cable between the shield plate and the shield terminal. And a terminal spring that is electrically insulated from the shield plate and sandwiches the inner conductor of the other coaxial cable, so that the other coaxial cable can be attached with a single fixing screw. There is an effect that is improved.

According to a third aspect of the present invention, the internal contact of the receptacle and the terminal spring are integrally formed, and the connecting piece extending from the peripheral edge of the external contact of the receptacle is fixed to the shield plate by caulking. By integrally forming the internal contact and the terminal spring, there is an effect that the number of parts can be reduced and the labor for assembling can be reduced.
Further, since the connection piece is fixed by caulking to the shield plate, there is also an effect that the assembly can be easily performed.

According to a fourth aspect of the present invention, an engaging hole communicating with the inside is provided on both side surfaces of the cover, and locking pieces are provided on both side edges of the shield plate so as to be releasably locked with the engaging hole. Therefore, there is an effect that the shield plate can be easily attached and detached. According to a fifth aspect of the present invention, there is provided a chamfered portion having a taper for avoiding interference with an inner peripheral surface of the embedding box so that two cases can be arranged side by side in a frustoconical embedding box having an open front. Since it is formed at the four corners of the cover, there is an effect that two cases can be attached to a truncated cone-shaped embedding box (a so-called C-shaped round box).

According to a sixth aspect of the present invention, the thickness of the locking claw is increased, and the cross-sectional shape of the locking claw is inclined from the front side of the cover to the rear side of the cover as going outward. Since the thickness of the locking claw piece is increased, the strength of the locking claw piece can be improved, and an external force is applied to the locking claw piece during and after construction so that the locking claw piece is formed. There is an effect that the piece can be prevented from being damaged.

According to a seventh aspect of the present invention, the rear side of the cover
A recess for preventing interference with the embedded box is formed up to a position on the front side of the cover from a position where it enters the opening edge of the embedded box in a state where the case is arranged in the embedded box. In the invention of claim 8, since the recess is formed in a groove shape, interference between the case and the recessed box can be prevented. Also, since the recess for preventing interference is not formed up to the front side of the case, the recess for preventing interference is not exposed to the outside when the case is arranged in the recessed box, and the appearance of the case is improved. There is also an effect that it can be improved.

According to the ninth aspect of the present invention, the notch for preventing interference with the four corners of the shield plate is formed in the chamfer, so that the chamfer is large and the protrusion of the cover is small. Thus, there is an effect that attachment to the embedded box can be easily performed. According to the tenth aspect of the present invention, since the connection terminal portion is formed so that the other coaxial cable is attached in a direction parallel to the longitudinal direction of the cover, two cases are arranged in the truncated conical box. When the coaxial cable is installed, the coaxial cable does not come into contact with scissors for fixing the mounting frame to the construction surface, so that the coaxial cable can be easily attached.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a coaxial cable connector according to a first embodiment.

2A and 2B show the same coaxial cable connector, wherein FIG. 2A is a front view, FIG. 2B is a left side view, FIG. 2C is a right side view, FIG. 2D is a rear view, and FIG. It is the side sectional view seen.

FIGS. 3A and 3B show the same coaxial cable connector, wherein FIG. 3A is a front view showing a state in which a shield plate is removed, FIG. 3B is a bottom view in which a part can be omitted, and FIG.

4A and 4B show the same cover, wherein FIG. 4A is a front view and FIG.
Is a side view that can be partially broken, (c) is a back view, and (d) is a top view.

5A and 5B show external contacts according to the embodiment, and FIG.
(B) is a top view, (c) is a bottom view, (d) is a side view,
(E) is an external view as viewed from an oblique direction.

FIGS. 6A and 6B show the same spring piece, wherein FIG. 6A is a front view in which a part is broken, FIG. 6B is a bottom view, FIG. 6C is a rear view, and FIG.

FIG. 7 shows a terminal case of the above, wherein (a) is a front view,
(B) is a side sectional view seen from the right side, (c) is a side view,
(D) is a back view, (e) is a bottom view, and (f) is a side sectional view as viewed from below.

8A and 8B show the same shield plate, wherein FIG.
(B) is a side view, and (c) is a bottom view.

FIG. 9 is an explanatory diagram illustrating a state of attachment of the coaxial cable to the connection terminal unit according to the first embodiment.

10A and 10B show another shield plate of the above, wherein FIG. 10A is a front view, FIG. 10B is a side view, and FIG. 10C is a bottom view.

FIG. 11 is a perspective view showing a mounting frame to which the coaxial cable connector is mounted.

FIG. 12 is a front view showing a state where the coaxial cable connector is mounted on a mounting frame.

FIG. 13 is an external perspective view showing a plug connected to the coaxial cable connector of the above.

FIG. 14 is an exploded perspective view showing the coaxial cable connector according to the second embodiment.

15A and 15B show a coaxial cable connector of the above, wherein FIG. 15A is a front view, FIG. 15B is a left side view, FIG. 15C is a right side view, and FIG.
Is a back view, and (e) is a side sectional view seen from below.

16A and 16B show a coaxial cable connector according to the third embodiment, wherein FIG. 16A is a front view with a shield plate removed, FIG. 16B is a bottom view in which a part can be omitted, and FIG.

17A and 17B show the same cover, wherein FIG.
(B) is a side view that can be partially broken, (c) is a back view, and (d).
Is a top view.

18 (a) is a front view, FIG. 18 (b) is a side sectional view as viewed from the right side, and FIG. 18 (c) is a side sectional view as viewed from below. FIG.

FIG. 19 is a perspective view showing a mounting frame for attaching the case and a decorative plate, as viewed from the front side.

FIG. 20 is a perspective view of the same as seen from the rear side.

FIG. 21 is a partially omitted perspective view showing a main part of the mounting frame of the above.

FIG. 22 shows a mounting frame of the above, (a) is a front view,
(B) is a side sectional view seen from the left side, (c) is a side sectional view seen from the right side, (d) is a side sectional view seen from below,
(E) is a side sectional view seen from below, and (f) is a back view.

FIG. 23 is a side cross-sectional view of a main part of the mounting frame of the above.

FIG. 24 is a side sectional view of a main part of the mounting frame of the above.

FIGS. 25 (a) to 25 (c) are side sectional views showing a method of attaching the above case to an attachment frame.

26 (a) is a front view, FIG. 26 (b) is a side sectional view as viewed from the left side, FIG. 26 (c) is a side sectional view as viewed from below, and FIG. 26 (d) is a rear view. is there.

FIG. 27 is a side sectional view of a main part of the decorative plate according to the third embodiment;

FIG. 28 is a side sectional view of a main part of the decorative plate according to the third embodiment;

29A and 29B show a state in which a decorative plate is attached to the attachment frame, and FIG. 29A is a front view, FIG. 29B is a partially cutaway side view seen from the left side, and FIG. It is sectional drawing.

30A and 30B show another configuration of the decorative plate in the above embodiment, where FIG. 30A is a front view, FIG. 30B is a side sectional view seen from the right side, FIG. 30C is a rear view, and FIG. It is a side sectional view.

FIG. 31 shows another configuration of the mounting frame in the above.
(A) is a front view, (b) is a side sectional view seen from the left side,
(C) is a side sectional view seen from the right side, (d) is a side sectional view seen from below, (e) is a side sectional view seen from below,
(F) is a back view.

32 (a) is a front view, FIG. 32 (b) is a side sectional view as viewed from the left side, FIG. 32 (c) is a side sectional view as viewed from the right side, and FIG. Is a side sectional view seen from below, (e) is a side sectional view seen from below,
(F) is a back view.

FIG. 33 is a side sectional view of a main part of the mounting frame of the above.

FIG. 34 is a side sectional view of a main part of the mounting frame of the above.

35 (a) is a front view, FIG. 35 (b) is a side sectional view seen from the left side, FIG. 35 (c) is a side sectional view seen from the right side, and FIG. () Is a back view, (e) is a side sectional view seen from below, and (f) is a side sectional view seen from below.

36 (a) is a front view, FIG. 36 (b) is a side sectional view as viewed from the left side, FIG. 36 (c) is a side sectional view as viewed from the right side, FIG. (d) is a rear view, and (e) is a side sectional view seen from below.

FIG. 37 is a side sectional view of a main part of the mounting frame of the above.

FIG. 38 is a side cross-sectional view of a main part of the mounting frame according to the third embodiment;

39 (a) is a front view, FIG. 39 (b) is a side sectional view as viewed from the left side, FIG. 39 (c) is a rear view, and FIG. 39 (d) is a side sectional view as viewed from below. is there.

FIG. 40 is a side sectional view of a main part of the decorative plate according to the third embodiment.

FIG. 41 is a side sectional view of a main part of the decorative plate according to the third embodiment;

FIG. 42 is an external perspective view showing a C-shaped round embedded box in which the case is provided.

[Fig. 43] Fig. 43 shows a case where the same case
It is explanatory drawing explaining the state which attached individually.

44A and 44B show the same coaxial cable connector, and FIG. 44A is a rear view, and FIG. 44B is an explanatory diagram for explaining a state of being attached to a C-shaped round embedded box.

FIG. 45 shows a coaxial cable connector according to the third embodiment;
(A) is a back view, (b) is an explanatory view explaining the state of attachment to a C-shaped round embedded type box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Cover 3 Shield plate 4 Connection terminal part 11 Receptacle

Claims (10)

[Claims] 1. A substantially box-shaped synthetic resin having a unit size of one unit of three wiring devices that can be mounted on a mounting frame on which a wiring device for embedded wiring is mounted, and having an open back surface. And a conductive shield plate that covers the back of the cover, and a locking claw that locks and releasably locks to the mounting frame is integrally formed on both sides of the cover. A substantially cylindrical inner contact fitted with the inner conductor of the connected plug; and an inner contact arranged concentrically with the inner contact and having an inner peripheral surface pressed against the outer peripheral surface of the outer conductor of the plug. A receptacle composed of a substantially cylindrical external contact having a large diameter is provided on the front surface of the cover, and a connection terminal portion electrically connected to the receptacle and connected to another coaxial cable is provided on the shield plate. Specially consist of Coaxial cable connector to. 2. A press fitting, wherein a connection terminal portion is attached to the shield plate so as to be openable and closable, and is fixed to the shield plate with one fixing screw, and clamps an external conductor of another coaxial cable between the shield plate and the holding terminal. 2. The coaxial cable connector according to claim 1, further comprising a terminal spring that is electrically insulated from the shield plate and sandwiches an inner conductor of another coaxial cable. 3. The connector according to claim 1, wherein the internal contact of the receptacle and the terminal spring are integrally formed, and a connecting piece extending from a peripheral edge of the external contact of the receptacle is caulked and fixed to the shield plate. 2. The coaxial cable connector according to 2. 4. An engaging hole communicating with the inside is provided on both side surfaces of the cover, and locking pieces are provided on both side edges of the shield plate so as to be releasably locked with the engaging hole. The coaxial cable connector according to claim 1. 5. A cover having a chamfered portion having a taper for avoiding interference with an inner peripheral surface of the embedding box so that two cases can be arranged side by side in a frustoconical embedding box having an open front surface. 5. The method according to claim 1, wherein said first and second corners are formed at four corners.
A coaxial cable connector as described. 6. A locking claw piece having a thicker thickness and a cross-sectional shape such that the cross-sectional shape of the locking claw piece is inclined from the front side of the cover toward the back side of the cover as going outward. The coaxial cable connector according to claim 5, wherein: 7. The embedding box and a position from the back side of the cover to a position on the front side of the cover from a position where the case is arranged in the embedding box and enters the opening edge of the embedding box. 7. The coaxial cable connector according to claim 5, wherein a recess for preventing interference is formed. 8. The coaxial cable connector according to claim 7, wherein said recess is formed in a groove shape. 9. The coaxial cable connector according to claim 5, wherein a cutout for preventing interference with four corners of the shield plate is formed in the chamfer. 10. A coaxial cable connector according to claim 1, wherein said connecting terminal portion is formed so that said another coaxial cable is attached in a direction parallel to a longitudinal direction of said cover.