JP2001210426A - Water-proof type wiring fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a water-proof type wiring fixture which does not need a complicated work for water-proofing in an wiring work by making the shape of an outer cylinder to the same concerning the plug and the connector body. SOLUTION: This is composed of the followings; a terminal part 2, which has plural protruding plug pieces 2c or plural insertion holes 2b engaged to these plug pieces at a connecting end face, and to which a terminal plate 2a is arranged in serial connection with these plug pieces or insertion hole; an outer cylinder 1 to which the terminal part 2 is mounted in the inside, and to which a wire insertion path 1b is formed at the opposite side of connection end of this terminal part 2, and which has an insertion port 1a that is made to be slanted so that the inner diameter become wider toward the outside to make a conical form at the end of this wire insertion path, an elastic sleeve member 4 which is conical table form to be fitted into the insertion port of this conical form and in which an outer diameter has a larger outside diameter than that of the insertion port 1a of the outer cylinder, and which has an insertion hole 4a of wire at the center, and a cap body 5 which is equipped with an engaged part 5b engaged to an engaging groove 1c drilled at the outer circumferential face of the outer cylinder at the inner face, and which is equipped with a wire insertion port 5a at the center.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof wiring device which is excellent in waterproof performance of a plug and a connector body used for connecting and connecting a wire cord.

[0002]

2. Description of the Related Art In a conventional plug or connector body, in order to waterproof the inside of the plug and connector body in a state where they are engaged and connected, these cylindrical outer cylinders are covered with a waterproof cloth or a rubber cloth. Tighten the opening with a wire or metal band, etc. to cover the whole with a waterproof material, or fit the plug with a connector body equipped with a waterproof fold covering the connection end of the outer cylinder on the plug side. There is one in which the plug is brought into close contact with a waterproof fold. Furthermore, a waterproof tube is also provided at the wire insertion port portion of these wiring devices to cover the wires,
Generally, a metal fastening band is wound around the outside and fastened with screws or the like.

[0003]

Such a method of waterproofing a plug or a connector body requires a metal tightening band.
When screws are used to tighten the metal tightening band, the wiring operation is complicated. Further, in the case where the waterproof fold is formed on the connector body by molding, the plugs and the outer cylinder of the connector body have different shapes, so that they have to be manufactured separately as wiring devices, resulting in high cost. It is an object of the present invention to provide a waterproof wiring device which can solve the above-mentioned conventional problems and can easily perform waterproof wiring connection of an electric wire cord without complicated wiring work. Another object of the present invention is to provide a waterproof wiring device that can be easily manufactured by using plugs and connector bodies as outer cylinders having the same shape.

[0004]

The object of the present invention can be achieved by the following constitution. In a cylindrical wiring device having a terminal portion having a plurality of terminal plates for fixing conductive wires of an electric wire cord, an electric wire insertion passage portion, and an electric wire insertion port, a plurality of protruding plug pieces or engaging with the plug pieces are engaged. A plurality of insertion holes are provided on the connection end face, and a terminal portion in which a terminal plate is disposed in connection with the plug piece or the insertion hole, and the terminal portion is provided, and an electric wire is inserted into the terminal portion on the side opposite to the connection end. A passage is formed, and at the end of the electric wire insertion passage, an outer cylinder having an insertion port formed by making the inner diameter inclined so that the outer side is widened and having a conical shape, and a truncated conical shape fitted to the conical insertion hole. An elastic sleeve member having an outer outer diameter slightly larger than the insertion opening of the outer cylinder, and having an electric wire insertion hole in the center, and an engaging portion which engages with an engagement groove formed in the outer peripheral surface of the outer cylinder. On the inner surface, comprising a lid having a wire insertion hole in the center, Through the inserted wire from the line insertion port into the insertion hole from the largest outer diameter of the elastic Asuribu member, through the electric wire insertion path of the outer cylinder,
After fixing the lead portion of the electric wire to the plug piece or the terminal plate in the insertion hole, the elastic sleeve member is fitted into the insertion opening of the outer cylinder, and the cover body is attached to the outer periphery of the insertion opening of the outer cylinder. By inserting the elastic sleeve member into the insertion opening and fastening the lid to the outer cylinder while engaging the engaging portion with the engagement groove of the outer cylinder, the electric wire is inserted into the insertion hole of the elastic sleeve member. The structure is such that it is fastened and fixed.

Further, according to the present invention, a fitting groove 1d is formed on an outer periphery of a connection end peripheral edge of the outer cylinder in which a terminal portion having a plug piece is provided.
On the other hand, a ridge 6 is formed in a resilient cylinder, and closely fits into the fitting groove 1d of the outer cylinder on the inner peripheral surface of the opening at both ends.
a plug 6 is fitted to the outer peripheral edge of the connection end of the outer cylinder, a connector body is fitted to the open end of the coupler fitted to the plug, and a plug piece is provided in the connector body. To connect the two to form a ridge 6 on the coupler.
a and the fitting groove 1d of the outer cylinder, the plug and the connector body are waterproofly covered with a coupler, so that the above-mentioned object can be achieved.

Further, the above object is achieved by providing a structure in which two large and small elastic sleeve members having different inner diameters of the insertion holes of the elastic sleeve member are provided, and a waterproof effect is exhibited even when the wire cords have different thicknesses. Can be achieved.

In the waterproof type wiring device of the present invention, the elastic sleeve member is formed by screwing the engaging portion 5b of the lid having the electric wire insertion opening into the engaging groove of the outer cylinder, for example, the spiral groove 1c. Therefore, it is clamped from the outside of the electric wire, so that intrusion of water from outside can be completely prevented.

Further, in the waterproof wiring device of the present invention, the engagement state between the plug piece of the plug and the insertion hole of the connector body can be sealed and covered by the elastic synthetic resin connection coupler. Since the insertion opening can be sealed by the elastic sleeve member, the connection portion can be completely waterproofed.

In the waterproof type wiring device according to the present invention, the structure of the plug or the terminal portion of the connector body is the same as that of the conventional one, and the lead of the electric wire cord is fixed to the same, and this is loaded into the outer cylinder. . In particular, the outer cylinder can be molded and manufactured from an insulating synthetic resin, and the terminal portion loaded into the outer cylinder serves as a plug or a wiring device for a connector body. The tension of the electric wire cord in the waterproof wiring device of the present invention can be adjusted by tightening the elastic sleeve member. This elastic sleeve member is configured such that the inner diameter of the insertion hole can be replaced with one used in accordance with the thickness of the wire to be inserted. 3).

In the waterproof wiring device of the present invention, when the cover is engaged with the outer periphery of the insertion opening of the outer cylinder having the terminal therein, the cover is engaged so as to be screwed. Since the fastening action of the internal elastic sleeve member is increased by engagement with the spiral strip or engagement between the projection and the recess, the wire cord can be firmly tightly fixed by tightening the lid. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A waterproof type wiring device according to the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a cross-sectional view schematically illustrating a waterproof wiring device according to an embodiment of the present invention. FIGS. 2A and 2B are perspective views of a plug and a connector body of the waterproof wiring device of the present invention. FIG. 3 is a side view showing an embodiment of the elastic sleeve member used in the waterproof wiring device of the present invention. FIG. 4 is a perspective view and a sectional view of an embodiment of the coupler used in the waterproof wiring device of the present invention. FIG. 5 is a side view when a coupler is mounted on the plug of the waterproof wiring device of the present invention. FIG. 6 is a diagram showing a use state of the waterproof wiring device of the present invention.

Referring to FIG. 1, the connector body of the waterproof wiring device will be described. A terminal portion 2 in which a terminal plate 2a is incorporated is provided inside an outer cylinder 1. An arc-shaped insertion hole 2b is provided on the connection surface side of the terminal portion 2. A plurality of the insertion holes 2b are formed. A terminal plate 2a is arranged in each insertion hole 2b. An electric wire insertion passage 1 of an electric wire cord 3 is provided inside the outer cylinder 1.
b, an insertion opening 1a is formed, and the insertion opening 1a has a conical shape inclined so that the inner diameter increases outward.
A spiral groove 1c, which is an engagement groove, is formed in the outer peripheral surface of the insertion port 1a. A groove 1d, which is a fitting groove, is provided on the outer peripheral edge of the outer cylinder 1 on the connection surface side. Reference numeral 4 denotes an elastic sleeve member formed of oil-resistant or water-resistant elastic rubber or the like which is inserted into and fitted into the conical insertion opening 1a of the outer cylinder 1, and has an insertion hole 4a for inserting an electric wire in the center. Reference numeral 5 denotes a lid fitted on the outer peripheral edge of the insertion opening 1a of the outer cylinder 1. A convex ridge 5b, which is an engaging portion screwed into the spiral groove 1c of the outer cylinder 1, is provided on the inner surface. At the center is an insertion port 5a through which the wire cord 3 is inserted.

The plug (a) of the plug (a) and the connector body (b) shown in FIG. 2 will be described. The shape and configuration of the outer cylinder 1 are exactly the same as those of the connector body of FIG. 1 except that the outer cylinder 1 is engaged with the arc-shaped insertion hole 2b of the terminal part 2 instead of the terminal part 2 of the connector body. A terminal portion 2 ′ having a plurality of plug pieces 2 c protruding is mounted in the outer cylinder 1. The tips of the plug pieces 2c, 2c are hook-shaped so as to be hooked into the insertion holes 2b of the connector body. The number of the plug pieces 2c is not limited to two, but may be three or four. In this case, three or four insertion holes 2b of the terminal portion 2 are naturally arranged.
The coupler 6 shown in FIG. 4 will be described. The coupler 6 is formed by molding an elastic synthetic resin, for example, silicone rubber. Protrusions 6 are formed on the inner periphery of the opening peripheral edge 6a at both ends. The ridge 6 fits into the groove 1 d of the outer cylinder 1. As shown in the cross-sectional shape (see FIG. 4B), the inner diameter of the central portion is slightly narrower, and the opening portions on both sides thereof can fit the connection end portion of the outer cylinder 1. If the coupler 6 is translucent, the number of internal plug pieces 2c can be confirmed.

The use of the thus-formed waterproof wiring device of the present invention will be described. When the number of elastic sleeve members 4 is one as shown in FIG. 1 or when two wires having different inner diameters are arranged as shown in FIG. Only use them, and when they are thin, use them in combination.

A method for connecting and wiring the waterproof wiring device of the present invention will be described. A plug in which a terminal portion 2 ′ having a plug piece 2 c is fitted in an outer cylinder 1 and a connector body in which a terminal portion 2 having a insertion hole 2 b is fitted in an outer cylinder 1 have the same shape. , The leading end of the electric wire cord 3 is inserted into the electric wire insertion opening 5a of the cover 5, and the electric wire cord 3 is inserted from the larger outer diameter of the insertion hole 4a of the elastic sleeve member 4, and then the outer cylinder 1 Of the wire cord 3 is screwed into the terminal plate 2a of the terminal portion 2 through the wire insertion passage 1b.

The tension is adjusted by pulling the rear end portion of the wire cord 3 so that the elastic sleeve member 4 is inserted into the insertion port 2a of the outer cylinder 1.
Then, the cover 5 is fitted over the outer peripheral edge of the insertion opening 2a, and the ridge 5a of the cover 5 is screwed into the spiral groove 1 of the outer cylinder 1.
The elastic sleeve member 4 is pushed into the insertion port 2a while being screwed and rotated with the screw c, thereby fixing the wire cord 3 and sealing the inside of the outer cylinder 1. At this time, when the outer diameter of the wire cord 3 is small, the wire cord 3 can be reliably fixed in the outer cylinder 1 by using the elastic sleeve member 4 having a small diameter.

The coupler 6 is fitted to the outer peripheral edge of the joint end of the plug thus constructed, and the groove 1d of the outer cylinder 1 is fitted and brought into close contact with the ridge 6a of the coupler 6, as shown in FIG. Plug. When the coupler 6 is mounted as described above, the protruding plug piece 2c is protected when the plug is handled, and there is no possibility of damaging the plug piece 2c. The outer peripheral edge of the connection end of the outer cylinder 1 of the connector body is inserted and fitted into the opening at the other end of the coupler 6, and is inserted into the corresponding other insertion hole 2b of the plug piece 2c, thereby connecting the connector body with the plug. Are relatively rotated and both are hooked and fixed. As a result, the plug and the connector body are engaged, and the inside of the
Will be hermetically sealed.

[0018]

According to the waterproof type wiring device of the present invention, a conical elastic sleeve member is closely fitted to an insertion opening of a conical electric wire of an outer cylinder containing a main body of a terminal portion by a lid. The tension adjustment of the wire cord can be fixed securely from
In addition, since the insertion port can be completely sealed, there is no need to provide a waterproof material or a metal band as a tightening member for covering the insertion port of the electric wire, and the work of attaching the wiring becomes extremely simple. By arranging a plurality of elastic sleeve members, waterproofing work according to the thickness of the electric wire is possible.

Further, in the waterproof type wiring device of the present invention, the interior can be completely sealed by using the coupler in the connection state between the plug and the connector body. Further, the wiring device has a unique shape, and since the shape is elongated, it is more convenient to handle the plug and the connector body with fingers than a conventional product having a short length.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically illustrating a waterproof wiring device according to an embodiment of the present invention.

FIG. 2 shows an embodiment of a waterproof type wiring device according to the present invention, wherein (a) is a perspective view of a plug. (B) is a perspective view of the connector body.

FIG. 3 is a side view showing an embodiment of an elastic sleeve member used in the waterproof wiring device of the present invention.

FIG. 4 shows an embodiment of a coupler used in the waterproof wiring device of the present invention, and FIG. 4 (a) is a perspective view. (B) is a sectional view.

FIG. 5 is a side view when a coupler is mounted on a plug of the waterproof wiring device of the present invention.

FIG. 6 is a diagram showing a usage state of the waterproof wiring device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder 1a Insertion opening 1b Electric wire insertion passage 1c Helical groove 1d groove 2 Terminal part 2a Terminal plate 2b Insertion hole 3 Electric wire cord 4 Elastic sleeve member 4a Insertion hole 5 Cover 5a Electric wire insertion opening 6 Coupler

Claims (4)

[Claims] 1. A cylindrical wiring device having a terminal portion having a plurality of terminal plates for fixing conductive wires of an electric wire cord, an electric wire insertion passage portion, and an electric wire insertion port, wherein a plurality of projecting plug pieces or this plug are provided. A plurality of insertion holes engaging with the piece are provided on the connection end face, a terminal portion connected to the plug piece or the insertion hole and a terminal plate is disposed, and the terminal portion is provided inside, and a connection end of the terminal portion is provided. A wire insertion passage is formed on the opposite side, and at the end of this wire insertion passage, an outer cylinder having a conical insertion port which is inclined so that the inside diameter is widened outside, and fitted into this conical insertion port A resilient sleeve member having a truncated conical shape, an outer diameter slightly larger than the insertion opening of the outer cylinder, and having an electric wire insertion hole in the center, and an engagement groove formed in the outer peripheral surface of the outer cylinder. And a cover with an electric wire insertion hole in the center. The electric wire inserted from the electric wire insertion opening of the cover is passed through the insertion hole from the larger outer diameter of the elastic sleeve member, through the electric wire insertion passage of the outer cylinder, and the leading wire portion of the electric wire is inserted into the plug piece or After being fixed to the terminal plate in the insertion hole, the elastic sleeve member is fitted to the insertion opening of the outer cylinder, the lid is fitted to the insertion opening of the outer cylinder, and the engagement portion of the outer cylinder is engaged. A waterproof type wiring, wherein an electric wire is fastened and fixed by an insertion hole of the elastic sleeve member by pushing the elastic sleeve member into the insertion opening while engaging with the engagement groove and fastening the lid to the outer cylinder. Appliances. 2. The waterproof wiring device according to claim 1, wherein a fitting groove is provided on an outer periphery of a peripheral edge of a connection end of the outer cylinder. 3. A coupler formed in a resilient cylinder made of synthetic resin and having a ridge on an inner peripheral surface of an opening at both ends and closely fitting into a fitting groove of the outer cylinder, an outer peripheral edge of a connection end of the outer cylinder. The waterproof wiring device according to claim 1 or 2, wherein the wiring device is fitted and connected to the wiring device. 4. The waterproof type wiring device according to claim 1, wherein two large and small elastic sleeve members having different inner diameters of the insertion holes of the elastic sleeve member are provided.