JPS5821099Y2 - Waterproof wiring equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a waterproof wiring device that includes a cable holding piece inside to prevent tension from being applied to the terminal portion.

Conventionally, in waterproof wiring equipment consisting of a device body with a terminal part and a rubber cover covering it, the terminal part is A method was adopted in which a notch was provided in a part of the cable and one end of the cable was hooked to this notch, but since the tensile force was applied directly to the terminal, the terminal itself became loose.
Utility Model No. 52-1288 was used as a means for holding cables even though it has the disadvantage of causing heat generation or burnout.
As shown in Publication No. 9, the legs are fixed to the base and the cord is tightened with the part facing the top of the terminal. A connecting piece protruding from both sides is provided at the tip of the connecting piece, and the connecting piece is screwed to tighten the parts.

Therefore, since this connecting piece is placed close to the top of the terminal, it is extremely difficult to connect the bare wire part of the cord led out from the connecting piece to the terminal, and it is difficult to securely connect the cord. are doing.

The tool for tightening the cord on the octopus corresponds to the cable holding piece of the present invention, but the width of the tool cannot be increased because increasing the width of the tool would reduce the dielectric strength with the terminal.

Therefore, it has the disadvantage that it is difficult to obtain sufficient cable holding force.

In addition, in order to prevent the influence of tensile force on the cable, the cable is tightened with a holding piece as disclosed in, for example, Japanese Utility Model Application Publication No. 52-84692, and the cable is connected to the plug body through the inner cover, and the inner cover is locked. The engagement between the claw and the locking groove on the plug body prevents external tension from being applied to the terminal, but there is a risk that the engagement between the claw and the locking groove on the plug body may separate due to rotation, applying tension to the cable, and furthermore, the number of parts may be reduced. However, it has many drawbacks such as poor workability and not being economically viable.

The present invention was made to eliminate the various drawbacks mentioned above, and includes a first insulating wall that partitions each terminal on the back side of an insulating base on which a plurality of terminals are arranged, and a first insulating wall extending toward the periphery of the base from this insulating wall. A second insulating wall is provided protrudingly provided, and the cable holding piece is formed into an inverted shape consisting of a leg part and a fixing part that protrudes from the tip to one side and has a holding part in the middle and a fixing part at the end. , with the second insulating wall in between and this insulating wall and the first insulating wall.
The cable is connected to the terminal by fixing the legs to one of the pair of parts surrounded by the first insulating wall, arranging the terminal to the other part, and further extending the fixing part along the first insulating wall. To provide a waterproof wiring device which is easy to operate and which can prevent the cable from being affected by tensile force by holding the cable above the center of the terminal part.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of the present invention will be explained with reference to the drawings for one embodiment.

Reference numeral 1 denotes an insulating base of a waterproof outlet, which is made of an insulating material such as hard synthetic resin, and on the back side of this base 1 is a first insulating wall 2 erected across the center as shown in FIG.
, second insulating walls 3, 3 are provided which are offset to both sides from this wall portion 2 and extend toward the periphery of the insulating base 10, and contact storage holes 4, 3 are provided on both sides of the central portion of the first insulating wall 2. There are 4.

Reference numeral 5 denotes a contact made of a blade holder, for example, which is accommodated in the storage hole 4; 6 is a terminal connected to the contact 5 and positioned above the storage hole 4; is attached.

Reference numeral 8 denotes an elastic cover that covers the insulating base 1 and a cable holding piece 12 to be described later, and a protrusion 9 that protrudes laterally of the base 1 fits inside a large diameter opening on one front side. A groove 10 is provided, and the other opening is formed with a small diameter to form a cable insertion hole 11.

A pair of cable holding pieces 12゜12 are shown in Figures 4 and 5.
A flat mounting base 13 as shown in the figure, this base 13
A leg 14 extending continuously upward from the leg 1
The fixing part 15 protrudes to one side from the tip of the cable guide 1, and the fixing part 15 has a cable conductor holding part 1 for one person in the center.
6, and fixed portions 18 having adjustment screws 11 are provided at the left and right ends.

This cable holding piece 12 has a leg part 14 fixed to one of a pair of parts surrounded by the second insulating wall 3 and the first insulating wall 2 with the second insulating wall 3 in the middle, and the leg part 14 is fixed to the other part. Terminals 6 are disposed therein, and the fixing portion 15 extends along the first insulating wall 2 .

The holding parts 16.16 of the fixing part 15 face each other to form a cable surrounding part, and this surrounding part is used for the terminals 6, 6.
Located above the center of

Therefore, the fixing part 18 for fastening the holding part 16.16 of the fixing part 15 is arranged offset from the terminal 6.

Reference numeral 19 indicates a fixing bolt for the mounting base 13, 20 indicates a drain section, 21 indicates a cord band, and 22 indicates a terminal screw.

Next, we will discuss the effect.

First, to connect the cable, the cable is introduced through the cable insertion hole 11 of the elastic cover 8 which has been separated from the base 1 in advance, through the drainage part 20, and then inserted into the fixing part 18 of the fixing part 15.
Loosen the adjusting screw 17, insert the cable into the holding part 16.16, and connect the bare wire at the tip of the cable to the terminal 6 using the terminal screw.

After that, the holding part 1 is fixed by adjusting the adjusting screw 1γ of the fixed part 18.
6 to tighten the cable.

Finally, the elastic cover 8 is placed on the insulating base 1, and the projection 9 and the groove 10 are engaged to complete the assembly.

As mentioned above, the pair of cable holding pieces 12, 12 are attached to the terminal 6.
The leg portion 14 is fixed to the back side of the base 1 through the second insulating wall 3 in a portion surrounded by the first and second insulating walls 2 and 3, and one side of the tip of the leg portion 14 is fixed. Since the fixing part 15 having the holding part 16 and the fixing part 18 is formed so as to protrude in the direction, the cable is compactly formed and does not require space, and the cable is crimped and held above the center of the terminals 6, 6. Therefore, even if a tensile force is applied to this cable from the outside, the effect will not be exerted on the connection part between the cable and the terminal.

Furthermore, since the fixing part 15 extends along the first insulating wall 2, the fixing part 18 of the holding part 16 is disposed above the terminal 6 so as to be offset from the terminal 6. When connecting the bare wire portion to the terminal 6, the wire connection operation using the terminal screw 22 can be easily and reliably performed without being hindered by the fixed portion 18.

Furthermore, the fixed position of the cable holding piece 12 is fixed to the insulating base 1.
Since the cable holding piece 12 can be selected in a portion with sufficient area, the cable holding piece 12 can be fixed without any difficulty.

As detailed above, the present invention consists of an insulating base on which a plurality of terminals connected to contacts are arranged, a cable holding piece fixed to the back of the base, and an elastic cable fixed to the base covering the terminals and the holding piece. The back of the base is provided with a first insulating wall that partitions each terminal, and a second insulating wall that projects from the middle of this insulating wall toward the periphery of the base, and the cable holding piece has legs and The second insulating wall and the second insulating wall are formed in an inverted shape, with the second insulating wall in the middle, and a fixing part that protrudes from the tip to one side and has a holding part in the middle and a fixing part at the end. The legs of the cable holding piece are fixed to one of a pair of quadruple parts of the first insulating wall, the terminal is arranged on the other side, and the fixing part of the holding piece is extended along the first insulating wall. Since this is a waterproof wiring device, when connecting the bare wire part of the cable supported by the holding part of the fixed part to the terminal, the fixed part that tightens the holding part is offset from the terminal, making the connection operation difficult. This improves workability and enables reliable electrical connections without causing any damage.

Even if a tensile force is applied to the cable, the cable holding piece can handle the tensile force, so the tensile force does not reach the connection part 1 between the cable and the terminal, so the terminal screw may loosen, generate heat, or burn out due to this. This has the excellent advantage of ensuring reliable connection and improving safety.

In addition, even if the cable holding piece is placed relatively close to the terminal, there is no risk of dielectric strength decreasing, and the fixing position can be selected to a part of the insulating base with sufficient area, so it can be fixed easily. It also has the advantage of being able to

[Brief explanation of drawings]

The figures show an embodiment of the present invention. Figure 1 is a partially cutaway side view, Figure 2 is a rear view of the insulating base, Figure 3 is a rear view of the base with terminals and cable holding pieces attached, and Figure 4 is a rear view of the base with terminals and cable holding pieces attached. 5 is an enlarged front view of the cable holding piece, FIG. 5 is a side view of the same, and FIG. 6 is a side view of FIG. 3. DESCRIPTION OF SYMBOLS 1... Insulating base, 2... First insulating wall, 3... Second insulating wall, 5... Contact, 6... ...Terminal, 8...Elastic cover
12...Cable holding piece, 13...Base, 14...Leg, 15...Fixing part,
16... Holding part, 18... Fixing part.

Claims (1)

[Scope of Claim for Utility Model Registration] An insulating base that supports a plurality of contacts and has a plurality of terminals connected to the contacts on its back, and a base that is fixed to the back of this base and whose tip is connected to the base. a cable holding piece for holding the cable; and an elastic cover having one end fixed to the periphery of the insulating base and covering the terminal and the cable holding piece; A first insulating wall for partitioning is provided to protrude, and a second insulating wall is provided to protrude from at least one intermediate portion of the first insulating wall toward the periphery of the insulating base. and a fixing part that protrudes from the tip to one side and has a holding part in the middle and a fixing part at the end. The legs of the cable holding piece are fixed to one of a pair of parts surrounded by the insulating wall and the first insulating wall, and the terminal is arranged on the other side, and the fixing part of the cable holding piece is fixed to the first part. A waterproof wiring device characterized by extending along an insulating wall.