JP2003274535A - Connector device and plug cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector device and a plug cap, by which mountability of a connector to an object is improved and the mounted state of the plug cap to the connector is maintained. <P>SOLUTION: The connector 3 comprises a first connection part 3b, connectable with a protection tube 2 at its one end and a second connecting part 3c connected to a hole 1a of a box 1 at its other end. The second connection part 3c comprises an abutting part 3h abuttable on the peripheral surface side 1b of the hole 1a and an insertion part 3a inserted to the hole 1a. An elastic piece 3j is formed at the insertion part 3a, and a latching part 3i (U) latched to the peripheral backside 1c of the hole 1a is formed at the elastic piece 3j; while the plug cap 4 comprises a plug part 4a that blocks the tip of the insertion part 3a and a mounting part 4b that is mounted to the insertion part 3a. The plug cap 4 comprises a bend allowing part 4c that allows the bending of the elastic piece 3j toward the inside of the insertion part 3a at the mounting part 4b. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector device including a connector for connecting a pipe to an attached body such as a switch box and a closing cap attached to the connector, and a closing cap therefor.

[0002]

2. Description of the Related Art Conventionally, in order to connect a protective tube of an electric wire to a hole of an attached body, for example, a hole of a box in which electric equipment such as a switch is accommodated,
A connector was used. In this connector, the elastic piece formed in the insertion portion inserted into the hole of the box is provided with a claw serving as a locking portion that is locked to the back side of the peripheral edge of the hole. In addition, a closing cap was attached to the insertion portion of this connector so that dust, dust, insects, concrete at the time of driving, etc. did not enter the protective tube before wiring the electric wire.

However, in the conventional closing cap, when the closing cap is attached to the insertion portion of the connector, the bending of the elastic piece is suppressed by the closing cap, and the insertion portion is inserted into the hole of the box. I couldn't. Therefore, after removing the closing cap from the connector, the inserting portion of the connector was inserted into the hole of the box, and the closing cap had to be attached to the inserting portion of the connector again. As described above, in the conventional closure cap, the connector to which the closure cap is previously attached cannot be attached to the hole of the box, and the workability thereof is poor.

Therefore, in order to mount the connector with the closing cap attached to the box, the closing cap is molded with a soft material, and the bending of the elastic piece of the closing cap is absorbed by the entire deformation of the closing cap. It is also possible. However, in this case, the closure cap is easily deformed, and when the connector is attached to the box,
Alternatively, there is a drawback in that the closure cap is easily detached from the connector after being attached.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to improve the workability of mounting a connector on a body to be mounted and to connect the connector. It is an object of the present invention to provide a connector device and a closure cap that can maintain the attached state of the closure cap.

[0006]

In order to achieve the above object, the connector device and the closing cap according to the present invention have the following configurations. That is, the connector device according to the invention of claim 1 is a tubular connector that is attached to a hole of the attached body to connect a pipe to the attached body, and an insertion of the connector that is inserted into the hole. And a closure cap detachably attached to the section. Here, an elastic piece is formed in at least the insertion portion of the connector, and the elastic piece is provided with a hooking portion that is hooked on the back side of the peripheral portion of the hole to attach the connector to the hole. . Further, the closing cap includes a closing portion that closes the insertion portion and a mounting portion that is attached to the insertion portion, and the mounting portion has a bending that allows the elastic piece to bend inside the insertion portion. The closure cap is formed so that the insertion part can be inserted into the hole while being attached to the insertion part. Further, the bending allowance portion is formed so as not to affect the attachment state of the attaching portion except the bending allowance portion when the elastic piece bends inside the insertion portion.

As described above, in the connector, the elastic piece is formed in the insertion portion to be inserted into the hole of the mounted body, and the elastic piece is provided with the hook portion. Then, the hooking portion is hooked on the back side of the peripheral edge portion of the hole of the mounted body, and the connector is mounted in the hole of the mounted body. And, in the closing cap, the closing portion closes the insertion portion of the connector,
Further, the attachment portion is attached to the insertion portion, and the closing cap is detachably attached to the insertion portion. At this time, the closing cap has a bending allowance portion that allows the elastic piece of the connector to bend toward the inside of the insertion portion at the attachment portion, and the closing cap is attached to the insertion portion of the connector. The connector can be attached to the attached body by inserting the insertion portion into the hole of the attached body. Moreover, the bending allowance portion is formed so as not to affect the mounting state of the mounting portion excluding the bending allowance portion when the elastic piece bends toward the inside of the insertion portion. Even when the elastic piece bends toward the inside of the insertion portion when it is inserted into the hole of the attached body, the attachment state of the attachment portion excluding the bending allowance portion is not affected.

According to a second aspect of the present invention, there is provided a connector device according to the first aspect, wherein the attachment portion is attached to the inner peripheral wall of the insertion portion so as to be in close contact with the inner wall. It may be composed of a body. In this way, the wall body is attached so as to be in close contact with the inner peripheral wall of the insertion portion of the connector,
The closure cap is attached to the connector.

Further, as in the connector device according to the invention described in claim 3, in the connector device according to claim 1 or 2, the bending allowance portion is formed by an escape space portion for releasing the bending of the elastic piece. It may be configured. In this way, since the bending allowance portion is configured by the escape space portion that allows the bending of the elastic piece to escape, the bending of the elastic piece can be reliably released without affecting the mounting state of the mounting portion excluding the bending allowance portion. it can.

Further, in the connector device according to any one of claims 1 to 3, like the connector device according to the invention described in claim 4, in the bending allowance portion, a predetermined amount or more of the elastic piece is provided. A regulation portion may be provided to regulate the bending of the. As a result, when the blocking cap is attached to the insertion portion of the connector, the elastic piece formed in the insertion portion is prevented from bending more than a predetermined amount, so that it is possible to suppress an unreasonable force from acting on the elastic piece. .

According to a fifth aspect of the present invention, there is provided the connector device according to any one of the first to fourth aspects, wherein the closure cap is provided with the flexible portion. In order to position it facing one side,
A positioning portion that is positioned with respect to the connector may be provided. In this way, the closing cap is positioned with respect to the connector by the positioning portion, and since the bending allowance portion of the closing cap is positioned to face the elastic piece of the connector, the bending allowance portion prevents the bending of the elastic piece. Will definitely be escaped.

Further, in the connector device according to any one of claims 1 to 5, like the connector device according to the invention described in claim 6, the elastic piece is forcibly forced to the elastic piece. An engaging portion with which a tool such as a driver is engaged may be provided so as to bend the inside of the insertion portion. As a result, a tool such as a screwdriver is engaged with the engaging portion, and the elastic piece is pressed by the tool so as to bend toward the inside of the insertion portion, so that the hooking portion is hooked on the back side of the peripheral portion of the hole. The connector can be detached from the attached body by removing.

According to a seventh aspect of the present invention, there is provided the connector device according to any one of the first to sixth aspects, wherein the connector is provided with the insertion portion and the hole. In a state of being inclined with respect to one side in the circumferential direction of the insertion portion is inserted into the hole,
An escape portion may be provided that is escaped with respect to the peripheral portion of the hole. In this way, since the connector is provided with the escape portion that is escaped with respect to the peripheral portion of the hole, the peripheral portion of the hole can be inserted into the escape portion by inserting the inclined portion of the insertion portion into the hole. it can. Therefore, after that, when inserting into the hole so as to raise the inclined insertion part with the peripheral part of the hole entering as the center, on the side opposite to the side where the peripheral part of the hole enters, the insertion part, Interference with the peripheral portion of the hole is reduced. Then, in order to remove this interference, the elastic piece is bent toward the inside of the insertion portion to move the hooking portion inwardly of the insertion portion, thereby completing insertion of the insertion portion into the hole. Here, the interference is small,
The amount of inward movement of the insert is also small.

According to the eighth aspect of the present invention, there is provided a closure cap in which an insertion portion of a tubular connector which is attached to a hole of the attached body so as to connect a pipe to the attached body is inserted into the hole. In addition, the closing cap detachably attached includes a closing portion that closes the insertion portion, and an attachment portion that is attached to the insertion portion. Here, the elastic piece formed at least on the insertion portion, which is hooked on the back side of the peripheral portion of the hole for attaching the connector to the hole, is bent toward the inside of the insertion portion. The attachment cap has a bending allowance portion that allows the insertion portion, and the closure cap is formed so that the insertion portion can be inserted into the hole while being attached to the insertion portion. Further, the bending allowance portion is formed so as not to affect the attachment state of the attaching portion except the bending allowance portion when the elastic piece bends inside the insertion portion.

As described above, in the connector, the elastic piece is formed in the insertion portion to be inserted into the hole of the attached body, and the elastic piece is provided with the hook portion. Then, the hooking portion is hooked on the back side of the peripheral edge portion of the hole of the mounted body, and the connector is mounted in the hole of the mounted body. In this closing cap, the closing portion closes the insertion portion of the connector, and the attachment portion is attached to the insertion portion,
The closing cap is detachably attached to the insertion portion. At this time, the closing cap has a bending allowance portion that allows the elastic piece of the connector to bend toward the inside of the insertion portion in the attachment portion, and in the state where the closing cap is attached to the insertion portion of the connector, The insertion portion is inserted into the hole of the attached body so that the connector can be attached to the attached body. Moreover, the bending allowance portion is formed so as not to affect the mounting state of the mounting portion excluding the bending allowance portion when the elastic piece bends inside the insertion portion,
When inserting the insertion part of the connector into the hole of the attached body,
Even if the elastic piece bends to the inside of the insertion portion, the mounting state of the mounting portion excluding the bending allowance portion is not affected.

[0016] Further, like the closure cap according to the invention described in claim 9, in the closure cap according to claim 8, the attachment portion is a wall attached so as to be in close contact with the inner peripheral wall of the insertion portion. It may be composed of a body. In this way, the wall body is attached so as to be in close contact with the inner peripheral wall of the insertion portion of the connector,
The closure cap is attached to the connector.

Further, like the closure cap according to the invention described in claim 10, in the closure cap according to claim 8 or 9, the bending allowance portion is formed by an escape space portion for releasing the bending of the elastic piece. It may be configured. In this way, since the bending allowance portion is configured by the escape space portion that allows the bending of the elastic piece to escape, the bending of the elastic piece can be reliably released without affecting the mounting state of the mounting portion excluding the bending allowance portion. it can.

Further, as in the closure cap according to the invention described in claim 11, the closure cap according to any one of claims 8 to 10, the bending permitting portion is provided with:
A regulation portion may be provided to regulate the bending of the elastic piece beyond a predetermined value. As a result, when the closing cap is attached to the insertion portion of the connector, the elastic piece formed in the insertion portion becomes
Since the bending of a predetermined amount or more is regulated, it is possible to suppress an unreasonable force from acting on the elastic piece.

According to a twelfth aspect of the present invention, there is provided a closure cap according to any one of the eighth to eleventh aspects, in which the bending allowance portion faces the elastic piece. There may be provided a positioning portion that is positioned with respect to the connector so as to position the connector. In this way, the closing cap is positioned with respect to the connector by the positioning portion, and since the bending allowance portion of the closing cap is positioned to face the elastic piece of the connector, the bending allowance portion prevents the bending of the elastic piece. Will definitely be escaped.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a connector device and a closing cap according to the present invention will be described below with reference to the drawings.

1 to 10 show an embodiment of a connector device and a closing cap according to the present invention. In the figure, reference numeral 1 is a box as an attached body, for example,
It is embedded in a wall such as a concrete wall together with a protective tube 2 and a connector 3 which will be described later, and accommodates electric appliances such as switches. Reference numeral 2 is a protective tube as a tube for protecting an electric wire, for example, and is a corrugated tube in the illustrated embodiment.
3 is a pipe connector, that is, a protective pipe 2 in the box 1.
Is a cylindrical connector that is attached to the hole 1a of the box 1 to connect the
a. Reference numeral 4 denotes a closing cap, which is detachably attached to the insertion portion 3a of the connector 3. 5 is
It is a connector device and includes a connector 3 and a closing cap 4.

Here, the connector 3 is made of synthetic resin, and the first connecting portion 3 to which the protection tube 2 can be connected at one end side.
b and a second connecting portion 3c connected to the hole 1a of the box 1 on the other end side. The first connecting portion 3b is provided with a plurality of engaging pieces 3e which are elastically bendable and which are surrounded by through holes 3d and 3d formed in a U-shape in an intermediate portion thereof.
3e is formed. A projection 3f protruding inward is provided at the tip of the engagement piece 3e. The projection 3f is adapted to hold the protective tube 2 by engaging with the concave groove 2a of the protective tube 2 inserted into the first connecting portion 3b. Further, on the outside of the engagement piece 3e,
The pressing pieces 3g are continuously arranged so as to be bent. Then, by pressing the pressing piece 3g with a finger, the engaging piece 3
The protrusion 3f can be disengaged from the concave groove 2a of the protective tube 2 by bending e outwardly.

The second connecting portion 3c is inserted into the abutting portion 3h capable of abutting on the front surface 1b of the peripheral edge portion of the hole 1a of the box 1 and the hole 1a provided on the tip side of the abutting portion 3h. And the insertion portion 3a. The insertion portion 3a is provided at its tip end with a plurality of hook portions 3i, 3i hooked on the back side 1c of the peripheral edge portion of the hole 1a. At least one of the plurality of hook portions 3i and 3i is provided on the elastic piece 3j formed in at least the insertion portion 3a, and is movable to the inside of the insertion portion 3a. Has become. Furthermore, the plurality of hooks 3i, 3i are
One or more hook portions 3i are fixed hook portions V that do not move inward of the insertion portion 3a, and the other hook portions 3i are the movable hook portions U. The fixed hooking portion V is provided on one side in the circumferential direction of the second connecting portion 3c, and the movable hooking portion U is provided.
Is provided on the other side in the circumferential direction of the second connecting portion 3c.

Specifically, the insertion portion 3a is formed in a cylindrical shape, and the contact portion 3h is formed in a ring shape or a brim shape so as to project outward. Further, the hooking portions 3i are arranged at positions facing each other, that is, shifted by 180 degrees in the circumferential direction,
Two of them are provided, and these hook portions 3i, 3i are formed so as to project outward from the tip portion of the insertion portion 3a. At this time, one of the hooks 3i and 3i serves as the movable hook U, and the other serves as the fixed hook V. Then, the second connecting portion 3c is formed with notches 3k and 3k extending from the tip of the insertion portion 3a toward the first connecting portion 3b so as to sandwich the movable hook U and beyond the contact portion 3h. The portion sandwiched by the notches 3k and 3k is the elastic piece 3j that can elastically bend. That is, the elastic piece 3
j is formed so as to extend from the first connecting portion 3b side with respect to the contact portion 3h to the tip of the insertion portion 3a. In this way, the elastic piece 3j bends inward of the insertion portion 3a so that the insertion portion 3a has a reduced diameter, so that the movable hook U provided on the elastic piece 3j moves inward of the insertion portion 3a. can do.

Further, the second connecting portion 3c has a hooking portion on either side of the plurality of hooking portions 3i, 3i in a state where the insertion portion 3a is inclined with respect to the hole 1a of the box 1. 3i
However, there is provided a relief portion 3m that is released to the peripheral portion of the hole 1a when it is hung on the rear side 1c of the peripheral portion of the hole 1a of the box 1 (see FIGS. 9 and 10). Specifically, the relief portion 3m is provided on the side of the fixed hook portion V in the circumferential direction of the second connection portion 3c (in the illustrated embodiment,
It is provided on the side facing the elastic piece 3j in the circumferential direction and at the same position as the fixed hook V). In this way, the escape portion 3m faces the elastic piece 3j as one side in the circumferential direction of the insertion portion 3a in the state where the insertion portion 3a is inclined with respect to the hole 1a of the box 1 (in the illustrated embodiment, in the illustrated embodiment). Is a relief portion that is released from the peripheral edge portion of the hole 1a when being inserted into the hole 1a). And this relief part 3m
Is provided from the insertion portion 3a to the contact portion 3h. More specifically, the escape portion W of the escape portion 3m on the side of the insertion portion 3a is formed so as to incline so as to move inward as it approaches the contact portion 3h, and the contact portion 3h of the escape portion 3m is formed. The side relief portion X is formed so as to be inclined so that the side relief portion X advances in a direction away from the tip of the insertion portion 3a as it goes outward.

Further, the elastic piece 3j has the elastic piece 3j.
An engaging portion 3n with which a tool such as a driver (not shown) is engaged is provided in order to forcibly bend j to the inside of the inserting portion 3a. Specifically, the engagement portion 3n is a concave portion into which the tip of the driver that is the tool fits. In particular,
This recess has a rectangular shape so that the tip of a flat-blade screwdriver as a driver fits into it. The engagement portion 3n is closer to the first connection portion 3b than the contact portion 3h in the elastic piece 3j (that is, the side opposite to the insertion portion 3a).
Is provided at a position adjacent to the contact portion 3h.

The closing cap 4 is made of synthetic resin,
The connector 3 includes a closing portion 4a that closes the tip of the insertion portion 3a, and a mounting portion 4b attached to the insertion portion 3a. The closing cap 4 has a bending allowance portion 4c at the attachment portion 4b, which allows the elastic piece 3j of the connector 3 to bend toward the inside of the insertion portion 3a.
Is attached to the insertion portion 3a,
Is formed so that it can be inserted into the hole 1a of the box 1. Furthermore, when the elastic piece 3j of the connector 1 is bent inside the insertion portion 3a, the bending allowance portion 4c is provided.
It is formed so as not to affect the mounting state of the mounting portion 4b except c.

Specifically, the closing portion 4a is formed in a disk shape so as to contact the tip surface 3p of the insertion portion 3a of the connector 3 and close the tip thereof. And the closing part 4a
A handle 4d that can be gripped when the closing cap 4 is attached to or detached from the insertion portion 3a is provided on the surface of the.
On the other hand, the mounting portion 4b is composed of a wall body 4e mounted so as to be in close contact with the inner peripheral wall 3q of the insertion portion 3a of the connector 3. And the bending allowance portion 4
c escapes the bending of the elastic piece 3j in the connector 3,
It is composed of the escape space portion 4f. Further, the bending allowance portion 4c is provided with a restriction portion 4g that restricts the elastic piece 3j from bending more than a predetermined amount. In the illustrated embodiment, the mounting portion 4b is formed on the back surface of the closed portion 4a by vertically arranging an arc exceeding a semicircle and a chord connecting each end of the arc in a tubular shape. The wall on the arc side is the wall body 4e. The restricting portion 4g is the mounting portion 4
On the outer side of the chord-side wall 4h in b, an arc having a radius concentric with the wall body 4e and smaller than the radius of the wall body 4e is projected on the back surface of the closed portion 4a in a wall shape. ,
Has been formed. The closing cap 4 has a convex portion 4i (see FIG. 8) that fits into a concave portion 3r (see FIG. 6) provided in the connector 3 in order to prevent the closing cap 4 from being accidentally detached from the connector 3. Has been formed.

Further, the closing cap 4 includes a bending allowance portion 4
In order to position c so as to face the elastic piece 3j of the connector 3, a positioning portion 4j that is positioned with respect to the connector 3 is provided. That is, in the connector 3,
The positioned portion 3s is provided, and the positioning cap 4j of the closing cap 4 is engaged with the positioned portion 3s, whereby the closing cap 4 is positioned with respect to the connector 3. In the illustrated embodiment, the positioned portion 3s
Consists of a protrusion provided on the inner surface of the second connecting portion 3c,
The positioning portion 4j is a notch provided in the wall body 4e.

Next, the function and effect of the connector 3 having the above-described structure and the connector device 5 including the closing cap 4 will be described. The protective tube 2 is connected to the first connecting portion 3b on one end side of the connector 3. And connector 3
The second connecting portion 3c on the other end side is the hole 1 of the box 1.
connected to a. In this way, the protective tube 2 is attached to the box 1.
It is connected via the connector 3.

At this time, in the second connecting portion 3c, a contact portion 3h capable of contacting the front surface 1b of the peripheral edge portion of the hole 1a of the box 1 and a tip portion of the insertion portion 3a inserted into the hole 1a are provided. Two hooks 3i, 3i (movable hooks U and fixed hooks V) hooked on the back side 1c of the peripheral edge of the hole 1a.
With this, the second connecting portion 3c is connected to the hole 1a so as to sandwich the peripheral portion of the hole 1a. Here, since the second connecting portion 3c is provided with the relief portion 3m that is released to the peripheral portion of the hole 1a, the insertion portion is arranged so that the fixing hook portion V is hung on the rear side 1c of the peripheral portion of the hole 1a. When 3a is tilted and inserted into the hole 1a, the peripheral edge of the hole 1a enters the relief portion 3m, and the fixed hooking portion V becomes the backside 1c of the peripheral edge of the hole 1a.
(See Figure 9). Therefore, after that, when the hole 1a is inserted into the hole 1a so as to raise the slanted insertion part 3a around the side where the peripheral edge of the hole 1a has entered (that is, the side where the fixing hook V is located), The interference between the insertion portion 3a and the peripheral edge of the hole 1a is reduced on the side opposite to the side where the peripheral edge of the movable latch U enters (that is, the movable latch U on the side opposite to the side having the fixed latch V, Interference with the peripheral portion of the hole 1a is reduced). Then, in order to remove this interference, the movable hook U is moved inward of the insertion portion 3a by bending the elastic piece 3j inside the insertion portion 3a (see FIG. 10), and the insertion portion 3a into the hole 1a is inserted. Complete the insertion of. Then, the elastic piece 3j elastically returns to the original side, and the movable hook U is hooked on the back side 1c of the peripheral edge of the hole 1a (see FIG. 2). Here, the interference is small and the movable hook U
The amount of inward movement of the insertion portion 3a also decreases. In this way, when the insertion portion 3a is inserted into the hole 1a of the box 1, the moving amount of the movable hook U inwardly of the insertion portion 3a becomes small. It can be easily attached to the hole 1a.

The relief portion 3m is inserted into the insertion portion 3a.
Since it is provided over the contact portion 3h, the relief of the hole 1a from the peripheral portion can be performed more effectively.
Moreover, since the escape portion W of the escape portion 3m on the side of the insertion portion 3a is formed so as to incline so as to advance inward as it approaches the contact portion 3h, the fixed hook portion V is formed in the hole 1a. The insertion portion 3a is slanted so as to hang on the back side 1c of the peripheral edge portion and the hole 1a is formed.
When inserting into the hole 1, the insertion portion 3a can be inserted into the hole 1a along the inclination of the relief portion W. Since the escape portion X of the escape portion 3m on the side of the contact portion 3h is formed so as to incline so as to move away from the tip of the insertion portion 3a as it goes outward, the fixing hook portion V is formed. The insertion portion 3a is slanted so as to hang on the back side 1c of the peripheral edge portion of the hole 1a.
When inserted in a, the inclination of the escape portion X hits and stabilizes along the peripheral surface front side 1b of the hole 1a.

Further, the elastic piece 3j is provided with an engaging portion 3n with which a driver as a tool is engaged. Therefore, by engaging the driver with the engaging portion 3n and pressing the elastic piece 3j so as to bend the elastic piece 3j toward the inside of the inserting portion 3a, the hole 1a of the movable hooking portion U is formed.
Remove the hook on the back side 1c of the peripheral edge of the
Can be removed from the box 1. In this way, the connector 3 can be removed from the box 1 by a simple operation of engaging the driver with the engaging portion 3n and pressing the elastic piece 3j. Moreover, since the screwdriver serves as a tool, the connector 3 can be detached from the box 1 by using a screwdriver at hand.

Moreover, the connector 3 has the hole 1a of the box 1.
When attached to the connector 3, the engaging portion 3n of the connector 3 is located outside the box 1, and is located outside the box 1 near the tip of the elastic piece 3j. . Therefore, when the connector 3 is detached from the box 1, detaching work can be performed from the outside of the box 1, and even if the engaging portion 3n is outside the box 1, the side close to the tip of the elastic piece 3j. Therefore, the elastic piece 3j can be bent relatively easily.

Moreover, the connector 3 has a hole 1a in the box 1.
Since the engaging portion 3n is located outside the box 1 when it is attached to, the driver can be used as shown below. That is, by pressing the elastic piece 3j by the driver engaging with the engaging portion 3n, the movable locking portion U is disengaged from the rear side 1c of the peripheral edge portion of the hole 1a, and then the tip of the driver is engaged. The driver is tilted toward the box 1 side while being engaged with the portion 3n. Then, if the side surface of the driver is brought into contact with the box 1 and the driver is further tilted around the contacted portion, the elastic piece 3j side of the insertion portion 3a comes out of the hole. In this way, using this driver, the insertion part 3
The elastic piece 3j side of a, that is, the movable hook U can be extracted from the hole 1a.

Further, the connector 3 is attached to the hole 1a of the box 1.
The elastic piece 3j is inserted into the insertion portion 3a so that the movable hook U is not hooked to the rear side 1c of the peripheral edge of the hole 1a when detached from the insert.
When the insertion portion 3a is bent inward and the insertion portion 3a is inclined with respect to the hole 1a, the relief portion 3m provided in the second connection portion 3c can move the insertion portion 3a to the side facing the elastic piece 3j. Yes (see Figure 10). Therefore, the bending of the elastic piece 3j is not required so much, and the connector 3 can be easily removed from the box 1.

In the closing cap 4, the closing portion 4
a closes the tip of the insertion portion 3a of the connector 3. The wall 4e of the attachment portion 4b is attached so as to be in close contact with the inner peripheral wall 3q of the insertion portion 3a, so that the closing cap 4 is detachably attached to the connector 3. The closing cap 4 has a bending allowance portion 4c at the attachment portion 4b thereof, which allows the elastic piece 3j of the connector 3 to bend inside the insertion portion 3a. The connector 3 can be attached to the box 1 by inserting the insertion portion 3a into the hole 1a of the box 1 while being attached to the portion 3a. Therefore, the workability of attaching the connector 3 to the box 1 can be improved. Moreover,
Since the bending allowance portion 4c is configured by the escape space 4f that allows the bending of the elastic piece 3j to escape, the bending of the elastic piece 3j is ensured without affecting the mounting state of the mounting portion 4b excluding the bending allowance portion 4c. Can escape to. Therefore,
Even when the elastic piece 3j bends inside the insertion portion 3a when the insertion portion 3a of the connector 3 is inserted into the hole 1a of the box 1,
The mounting state of the mounting portion 4b other than the bending allowance portion 4c is not affected. In this way, even when the connector 3 is attached to the box 1, the attachment state of the closing cap 4 to the connector 3 can be maintained.

Then, when the closing cap 4 is attached to the insertion portion 3a of the connector 3, the regulation portion 4g regulates the elastic piece 3j formed on the insertion portion 3a so as not to bend more than a predetermined amount. Therefore, it is possible to prevent an unreasonable force from acting on the elastic piece 3j and prevent the elastic piece 3j from being damaged. Further, the closing cap 4 is positioned with respect to the connector 3 by the positioning portion 4j, and the bending allowance portion 4c of the closing cap 4 is positioned so as to face the elastic piece 3j of the connector 3 and the elastic piece 3j.
You can definitely escape the flexure of.

The present invention is not limited to the above-described embodiment, but various modifications can be made. For example, the box 1 may be embedded in a slab or the like without being embedded in the wall, or may be used without being embedded. Further, the box 1 may contain a faucet device or the like even if no electric device is housed therein, or may be one in which the protective tube 2 is simply connected without housing the device. .

The first connecting portion 3b of the connector 3 has
Even if the protection pipe 2 is not connected, the pipe joint connected to the protection pipe 2 may be connected. In this case, Box 1
The protective pipe 2 is connected to the connector via the connector 3 and the pipe joint.

Further, the relief portion 3m provided on the second connection portion 3c of the connector 3 does not have to extend from the insertion portion 3a to the contact portion 3h, but the contact portion 3h of the insertion portion 3a is not provided.
The second connecting portion 3c may be provided only in the vicinity of the second connecting portion 3c as long as it functions as a relief such as being provided from the contact portion 3h side to the fixed hooking portion V side of the insertion portion 3a. The width dimension in the axial direction of is arbitrary. When the escape portion 3m is provided near the contact portion 3h in the insertion portion 3a, the insertion portion 3a is inclined so that the fixed hooking portion V is hung on the rear side 1c of the peripheral edge portion of the hole 1a.
When it is inserted into a, the relief of the peripheral portion of the hole 1a is effectively performed.

Even if the relief portion 3m is not provided so as to correspond to the fixed hooking portion V, for example, as shown in FIGS. 11 and 12, the movable hooking portion U of the second connecting portion 3c is formed. May be provided over the entire circumference except for, and may be provided over the entire circumference of the second connecting portion 3c. Further, the relief portion 3m may be provided on the movable retaining portion U side of the second connecting portion 3c, instead of being provided on the fixed retaining portion V side in the circumferential direction. And in this case, the insertion part 3a is
When inserting into the hole 1a of the box 1, the insertion portion 3a is inclined with respect to the hole 1a so that the movable hook U can be hooked on the rear side 1c of the peripheral edge of the hole 1a.

Further, although the connector 3 is provided with two hook portions 3i, three or more hook portions may be provided. Of the plurality of hook portions 3i, 3i, the number of the movable hook portions U may be two or more, and in particular, all the hook portions 3i, 3i are movable hook portions U. It may be.

The engaging portion 3n provided on the elastic piece 3j of the connector 3 is a concave portion into which the tip of a driver as a tool fits, but the elastic piece 3j is engaged by the tool.
Any shape may be used as long as it can be forcibly bent inside the insertion portion 3a, and it may be provided at any position.

Further, in the closing cap 4, the bending allowance portion 4c is provided with a restricting portion 4g for restricting the elastic piece 3j of the connector 3 from bending more than a predetermined amount. As shown in FIG. The restriction portion 4g may be omitted. Further, the closing cap 4 may have the escape space portion 4f forming the bending allowance portion 4c in the attachment portion 4b, not only at one location but at a plurality of locations such as two locations as shown in FIG. Further, the bending allowance portion 4c may not be formed of the escape space portion 4f, but may be formed of a flexible piece Y that can bend inward as shown in FIG. That is, the plurality of flexible pieces Y, Y are arranged on the back surface side of the closing portion 4a.
The bending allowance portions 4c are arranged along the peripheral edge of a, and also serve as wall bodies 4e that are attached so as to be in close contact with the inner peripheral wall 3q of the insertion portion 3a of the connector 3.

The mounting portion 4b is mounted on the inner wall 3q of the insertion portion 3a so as to be in close contact with the inner wall 3q.
Even if it is not constituted by e, as shown in FIG. 16, it may be composed of a plurality of engagement protrusions Z, Z protruding from the back surface of the closing portion 4a. At this time, the tip surface 3p of the insertion portion 3a
The mounting portion 4b is mounted on the insertion portion 3a by providing an engaging hole into which the engaging protrusions Z are fitted.
The engaging projections Z are arranged along the peripheral edge of the closing portion 4a, but are not provided on a part of the peripheral edge, and that portion forms an escape space portion 4f for allowing the bending of the elastic piece 3j to escape. Has become.

[0047]

As is clear from the above description, the connector device and the closing cap according to the present invention have the following effects.

According to the connector device of the first or second aspect and the closure cap of the eighth or ninth aspect, the connector is covered with the closure cap still attached to the insertion portion of the connector. Since it can be attached to the attachment body, the workability of attaching the connector to the attachment body can be improved. Moreover, when the insertion portion of the connector is inserted into the hole of the mounted body, even if the elastic piece bends inside the insertion portion, the mounting state of the mounting portion excluding the bending allowance portion is not affected. Even when the connector is attached to the attached body, the attachment state of the closing cap to the connector can be maintained.

According to the connector device of the third aspect and the closure cap of the tenth aspect, in addition, the bending allowance portion of the closing cap allows the bending of the elastic piece in the connector to escape. Since it is configured by the space portion, the bending of the elastic piece can be reliably released without affecting the mounting state of the mounting portion excluding the bending allowance portion.

According to the connector device of the fourth aspect and the closing cap of the eleventh aspect, in addition, when the closing cap is attached to the insertion part of the connector, the insertion part is caused by the regulating part. Since the elastic piece formed in (1) is restricted from bending more than a predetermined amount, it is possible to prevent an unreasonable force from acting on the elastic piece and prevent the elastic piece from being damaged.

According to the connector device of the fifth aspect and the closure cap of the twelfth aspect, in addition, the closure cap is positioned with respect to the connector by the positioning portion. Since the bending allowance portion of the closing cap is located so as to face the elastic piece of the connector, the bending of the elastic piece can be surely released by the bending allowance portion.

Further, according to the connector device of the sixth aspect, in addition, the tool is engaged with the engaging portion, and the elastic piece is pressed so as to bend toward the inside of the insertion portion, whereby the latching is achieved. The hook of the part can be removed, and thus the connector can be detached from the mounted body by a simple operation.

According to the connector device of the seventh aspect, in addition, when the insertion portion is inserted into the hole of the mounted body, the amount of movement of the hook portion inward of the insertion portion is increased. Since it is small, this connector can be easily attached to the hole of the attached body.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a connector device and a closing cap according to the present invention.

FIG. 2 is likewise an enlarged cross-sectional view taken along the line AA in FIG.

FIG. 3 is likewise a front view of the connector.

FIG. 4 is likewise a plan view of the connector.

FIG. 5 is likewise a bottom view of the connector.

FIG. 6 is likewise a sectional view taken along line BB in FIG.

FIG. 7 is likewise a sectional view taken along the line C-C in FIG. 3.

FIG. 8 is likewise a perspective view of the closure cap.

FIG. 9 is a cross-sectional view showing a state in which the fixing hook portion is hooked on the back side of the peripheral edge portion of the hole.

FIG. 10 is a sectional view showing a process of inserting the insertion portion into the hole or a process of removing the insertion portion from the hole.

FIG. 11 is a front view showing a modified example of the connector.

12 is a cross-sectional view taken along the line DD in FIG.

FIG. 13 is a perspective view showing a first modified example of the closing cap.

FIG. 14 is a perspective view showing a second modified example of the closing cap.

FIG. 15 is a perspective view showing a third modified example of the closing cap.

FIG. 16 is a perspective view showing a fourth modified example of the closing cap.

[Explanation of symbols]

1 box (attached body) 1a hole 1c Back of peripheral edge 2 Protective tube (tube) 3 connector 3a insertion part 3i hooking part 3j elastic piece 3q Inner wall 3m Relief part 3n engaging part 4 closing cap 4a Blocking part 4b Mounting part 4c Bending allowance part 4e Wall body 4f Relief space 4g Regulator 4j Positioning part U movable hook

Claims (12)

[Claims] 1. A tubular connector attached to a hole of the attached body to connect a pipe to the attached body, and a closing cap detachably attached to an insertion portion of the connector inserted into the hole. An elastic piece is formed on at least the insertion portion of the connector, and the elastic piece is provided with a latching portion that is latched on the back side of the peripheral portion of the hole for attaching the connector to the hole. The closure cap is a closure part for closing the insertion part,
An attachment portion attached to the insertion portion, wherein the attachment portion has a bending allowance portion that allows the elastic piece to bend inside the insertion portion, and the closure cap is attached to the insertion portion. The mounting portion is formed so that the insertion portion can be inserted into the hole in the mounted state, and the bending allowance portion is the attachment portion excluding the bending allowance portion when the elastic piece bends inside the insertion portion. Is formed so as not to affect the mounting state of the connector device. 2. The connector device according to claim 1, wherein the mounting portion is constituted by a wall body that is mounted so as to be in close contact with the inner peripheral wall of the insertion portion. 3. The connector device according to claim 1, wherein the bending allowance portion is formed by an escape space portion that allows the bending of the elastic piece to escape. 4. The connector according to claim 1, wherein the bending allowance portion is provided with a restriction portion that restricts bending of the elastic piece beyond a predetermined value. apparatus. 5. The closing cap is provided with a positioning portion that is positioned with respect to the connector so as to position the bending allowance portion so as to face the elastic piece. The connector device according to claim 1. 6. The elastic piece is provided with an engagement portion with which a tool such as a screwdriver is engaged in order to forcibly bend the elastic piece to the inside of the insertion portion. Item 6. The connector device according to any one of items 1 to 5. 7. The connector has a peripheral edge portion of the hole when the insertion portion is inclined with respect to the hole and one side in the circumferential direction of the insertion portion is inserted into the hole. The connector device according to any one of claims 1 to 6, further comprising an escape portion that is released from the connector device. 8. A closure cap detachably attached to an insertion portion of a cylindrical connector attached to a hole of the attached body to connect a pipe to the attached body, the insertion portion being inserted into the hole. A hooking portion is provided, which includes a closing portion that closes the insertion portion, and an attachment portion that is attached to the insertion portion, and that is attached to the back side of the peripheral portion of the hole to attach the connector to the hole. At least the bending allowance portion that allows the elastic piece formed in the insertion portion to bend toward the inside of the insertion portion is provided in the attachment portion, and the closing cap is attached to the insertion portion. The bending allowance portion is formed so that the insertion allowance can be inserted into the hole, and the bending allowance portion influences a mounting state of the attaching portion excluding the bending allowance portion when the elastic piece bends inside the insertion portion. I won't give Closing cap, characterized in that it is formed. 9. The closure cap according to claim 8, wherein the attachment portion is formed of a wall body that is attached so as to be in close contact with the inner peripheral wall of the insertion portion. 10. The closure cap according to claim 8, wherein the bending allowance portion is configured by an escape space portion that allows the bending of the elastic piece to escape. 11. The obstruction according to claim 8, wherein the bending allowance portion is provided with a restriction portion that restricts the bending of the elastic piece beyond a predetermined value. cap. 12. A positioning portion that is positioned with respect to the connector is provided to position the bending allowance portion so as to face the elastic piece. The closure cap according to the item.