JP3504850B2 - Waterproof protective cover - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof protection cover for protecting a wire connecting portion from water.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional waterproof protective cover 1 described in Japanese Utility Model Laid-Open No. 6-9064. This waterproof protective cover 1 connects a body 2 and a lid 3 in a half-divided shape with hinges 4 arranged on each side edge, and locks 5 and 6 provided on each side edge opposite to the hinge 4 form a main body. 2 and the lid 3 can be locked in a closed state. First and second wire insertion holes 12, 13, 14, 15 are formed at the joints between the longitudinal end walls 8, 9, 10, 11 of the main body 2 and the lid 3.

Inside the main body 2 and the lid 3, first partition walls 18 and 19 and second partition wall 2 are formed substantially orthogonal to the longitudinal direction.
0, 21 are provided, the first holes 22, 23 are formed at the joints of the first partition walls 18, 19, and the second partition wall 2 is formed.
Second holes 24 and 25 are formed at the joints 0 and 21. These first and second partition walls 18, 19, 20, 2
1, the inside of the main body 2 and the inside of the lid body 3 have both end walls 8, 9,
It is divided into three chambers, a first reservoir chamber 29, 32 and a second reservoir chamber 30, 33 located inside 10 and 11, and a wire connection portion accommodation chamber 28, 31 located between them. Body 2
When the lid 3 and the lid 3 are brought into a combined state, the first partition walls 18 and 19 and the second partition walls 20 and 21 are respectively combined to form the first reservoir chambers 29 and 32, the wire connection portion accommodation chamber 28,
Three chambers 31, 31 and second reservoir chambers 30, 33 are formed inside the waterproof protection cover 1. At this time, the first and second storage chambers 29, 32, 30, 33 are the same as the wire connection portion accommodation chamber 2
It is divided into 8 and 31.

Further, the electric wire connecting portion accommodating chambers 28 and 31 located at the centers of the main body 2 and the lid 3 are filled with a jelly-like sealant as a flexible insulating sealant 40.
Materials used as the jelly-like sealant are, for example, low-viscosity butyl rubber, mineral oil-based grease, silicone-based grease, silicone gum and the like. Wire connection part accommodation chamber 28,
31 includes a base line (electric wire) 100 to a joint metal fitting 10
The connection portion of the electric wire branched and connected to the accessory wire (electric wire) 101 via 2 is accommodated, and the base wire 100 is inserted through the first electric wire insertion holes 12 and 13 and the first hole portions 22 and 23 and branched. The connected base line 100 and attached line 101 are inserted through the second wire insertion holes 14 and 15 and the second hole portions 24 and 25.
That is, the insertion direction of the electric wire is substantially the same as the longitudinal direction of the main body 2 and the lid body 3.

Further, on the side of the second storage chambers 30 and 33 of the wire connection portion accommodating chambers 28 and 31 of the main body 2 and the lid 3, positioning is performed between the branch side electric wires to prevent the electric wires from being displaced. Pins 36 and 37 are respectively provided in a protruding manner, and a positioning plate 35 for restricting the arrangement position of the base line 100 of the electric wire is erected on the side of the first storage chamber 29 of the electric wire connection portion accommodation chamber 28 of the main body 2. ing.

In order to protect the connecting portion of the electric wire in which the accessory wire 101 is branched and connected to the base wire 100 by the waterproof protective cover 1 constructed in this way, first fill the sealant 40 and then cover the main body 2 and the lid. The body 3 is opened and the wire connecting portion is housed in the wire connecting portion housing chamber 28 of the main body 2. At this time, the base wire 100 is inserted through the first wire insertion hole 8 and the second wire
The base line 100 and the accessory line 101 are inserted into the wire insertion hole 14 of the base line 100, the base line 100 is positioned in the recess of the positioning plate 35, and the positioning pin 36 is positioned in the gap between the base line 100 and the accessory line 101. The attached wire 101 and the joint metal fitting 102 are arranged.

Next, after disposing the base line 100, the accessory line 101, and the joint metal fitting 102, the lid 3 is closed and aligned with the main body 2, and both are locked. At this time, the surroundings of the base wire 100, the accessory wire 101, and the joint metal fitting 102 are surrounded by the sealant 40, so that the connection portion of the electric wire branched from the base wire 100 to the accessory wire 101 can be insulated and protected.

[0008]

By the way, in the above-mentioned waterproof protective cover 1, since the electric wire (base line 100) is only fixed by the positioning plate 35 through the insulating coating, the electric force is exerted on the electric wire when connecting or bending. In the case of being damaged, the electric wire easily moves inside the protective cover 1, and when the electric wire moves, the sealant 40 may leak from the gap between the electric wire and the protective cover 1. In addition, a load is applied to the insulation coating of the electric wire, and the insulation coating may be damaged.

In consideration of the above-mentioned circumstances, the present invention can suppress the movement of the electric wire at the time of connection or bending, prevent leakage of the sealant, and prevent damage to the insulating coating. It is intended to provide a waterproof protective cover that can be used.

[0010]

According to a first aspect of the present invention, a main body filled with a sealant and a lid are put together to protect a wire connecting portion housed between the main body and the lid via the sealant. in the waterproof protective cover to the main body and the lid, the joint fixing portion for fixing the joint bracket of the wire connecting portion by closing both provided on the body, the join
Joint fixing wall having a recess for receiving the metal fitting, and a joy
The length of the wire can be increased by inserting it into the wire gap near the
A stopper for restricting movement in the hand direction is provided, and the lid is
Press the joint fitting against the receiving recess on the body.
There is a holding projection to attach, and the fixed wall and stopper
And the holding wall constitutes the joint fixing portion.
And wherein the Iruko.

In this waterproof protective cover, since the joint fittings connecting the electric wires are directly fixed by the joint fixing portion, unlike the case where the insulation coating of the electric wires is fixed,
The electric wire does not move much. Therefore, it is possible to prevent leakage of the sealant due to movement of the electric wire. Also,
Since the insulating coating itself is not restrained, damage to the insulating coating can be prevented.

[0012]

In this waterproof protective cover, the joint fitting of the electric wire connecting portion is pressed by the pressing projection on the lid side in a state of being put in the receiving recess of the joint fixing wall.
The joint fitting can be securely stopped so that it will not move. In addition, the electric wire can be easily positioned by positioning the stopper in the gap between the electric wires.

The invention of claim 2 is the waterproof according to claim 1.
A protective cover, which is a receiving recess of the joint fixing wall.
The joint fitting into the receiving recess at the entrance of
It is characterized in that a locking claw for smoothing and preventing the slipping out is provided .

In this waterproof protective cover, the entrance of the receiving recess is provided with the locking claw that smoothly accepts the joint fitting into the receiving recess and prevents the joint fitting from coming off. Therefore, the setting is easy and once set. The movement of the joint fittings can be reliably stopped.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of a waterproof protective cover of the embodiment, (a) is a plan view showing a state when a lid is opened, and (b) is a diagram showing a positional relationship of main parts.

In this waterproof protective cover 51, a half-split main body 2 and a lid body 3 are connected by a hinge 4 similarly to the conventional example shown in FIG. 3, and lock portions 5 and 6 on the opposite side connect the main body 2 and the lid. The body 3 can be locked in the closed state. End wall 8,
9, 10, 11 wire insertion holes 12, 13, 14, 15,
Holes 22 in the first and second partition walls 18, 19, 20, 21
23, 24, 25, the configuration of the first storage chambers 29, 32, the second storage chambers 30, 33, the wire connection portion accommodation chambers 28, 31,
The method of filling the sealing agent 40 is the same as that in FIG.

The difference is that a joint fixing portion for fixing the joint metal fitting 102 in a fixed position when the main body 2 and the lid 3 are closed is provided in the wire connection portion accommodation chambers 28 and 31 of the main body 2 and the lid 3. As shown in the figure (b), the joint fixing wall 5
5, the pressing protrusion 57 and the stopper 60 are provided. The joint fixing wall 55 is provided between the joint fittings 10
A pair of left and right protrusions are provided on the main body 2 side so as to secure the second receiving recess 56. At the entrance of the receiving recess 56 of the joint fixing wall 55, a locking claw 58 having an inclined edge 58a for smoothly receiving the joint fitting 102 into the receiving recess 56 and a blocking edge 58b for preventing the projection from coming off is projected. It is set up.

The pressing projection 57 presses the joint fitting 102 against the receiving recess 56 and is provided on the lid 3. The stopper 60 is an electric wire (base line 100, accessory line 10) near the joint fitting 102.
By being inserted into the gap of 1), the movement of the electric wire in the longitudinal direction is restricted, and it is provided so as to project on the main body 2 side.

When the waterproof protective cover 51 is used,
As in the conventional case, after filling the sealant 40, the main body 2 and the lid 3 are opened, the electric wire connecting portion is accommodated in the electric wire connecting portion accommodation chamber 28 of the main body 2, and the base wire 100 is passed through the electric wire insertion hole 8. The base wire 100 and the accessory wire 101 are passed through the wire insertion hole 14. Further, when the base line 100, the accessory line 101 and the joint fitting 102 are arranged so that the stopper 60 is located in the gap between the base line 100 and the accessory wire 101, and the joint fitting 102 is positioned right above the receiving recess 56, Depending on the case, it is lightly pushed into the receiving recess 56.

Next, the lid 3 is closed and fitted to the main body 2, and both are locked. At this time, the base line 100 and the attached line 10
1 and the circumference of the joint metal fitting 102 are the sealant 40
As it is surrounded by,
The front end of the connection part of the electric wire branched and connected to is securely insulated and protected. Further, as shown in FIG. 2, when the lid 3 is closed, the pressing protrusion 57 presses the joint fitting 102 from above, so that the joint fitting 102 receives the receiving concave portion 5.
Even if it is not completely inside 6, the receiving recess 56
It can be fitted inside and the joint fitting 102 can be locked in place. At this time, since the stopper 60 is near, the movement of the joint metal fitting 102 in the axial direction is suppressed, and the joint metal fitting 102 is fixed at a fixed position.

As described above, the joint fixing wall 55, the pressing protrusions 57, and the stopper 60 allow the joint fitting 10 to be joined.
Since the wire 2 can be securely fixed, the wire inside the protective cover 51 does not move much even when the wire is connected or the wire is bent, unlike the conventional case where the insulating coating of the wire is fixed. Therefore, it is possible to prevent leakage of the sealant 40 due to movement of the electric wire. Further, since the insulating coating itself is not restrained, damage to the insulating coating can be prevented. Moreover, since the electric wire is positioned by the stopper 60, the positioning work can be easily performed.

[0024]

As described above, according to the invention of claim 1, since the joint fitting is directly fixed by the joint fixing portion, unlike the case where the insulation coating of the electric wire is fixed,
It is possible to stop the movement of the wire when connecting or bending without imposing a burden on the insulation coating. Therefore, it is possible to prevent the sealant from leaking due to the movement of the electric wire, and also to prevent the insulation coating from being damaged.

Further, since the joint fitting is pressed by the pressing projection on the lid side in a state where the joint fitting is put in the receiving concave portion of the joint fixing wall, the joint fitting can be securely stopped so as not to move. Further, since the stopper is located in the gap between the electric wires, the electric wires can be easily positioned.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, a member for facilitating the reception of the joint metal fitting into the receiving recess and preventing it from coming off at the inlet of the receiving recess of the joint fixing wall. Since the pawl is provided, it can be easily set, and once set, the movement of the joint fitting can be reliably stopped.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a waterproof protection cover according to an embodiment of the present invention, (a) is an overall plan view showing a lid open state, and (b) is a perspective view showing a positional relationship of main parts.

FIG. 2 is a lateral cross-sectional view of a main part of the waterproof protective cover according to the embodiment of the present invention when the lid is closed.

FIG. 3 is a plan view showing an open state of a lid of a conventional waterproof protection cover.

[Explanation of symbols]

2 body 3 lid 40 sealant 51 waterproof protective cover 55 joint fixed wall 56 receiving recess 57 Pressing protrusion 58 locking claw 60 stopper

Claims (2)

(57) [Claims] 1. A waterproof protective cover for protecting a wire connecting portion housed between the main body and the lid body by sealing the main body filled with the seal agent with the lid body, wherein the main body and the lid body are protected. , A joint fixing portion for fixing the joint fitting of the electric wire connecting portion by closing the two is provided, and the main body has a recess for receiving the joint fitting.
In the gap between the fixed wall and the electric wire near the joint fitting.
Strokes that restrict the movement of the wires in the longitudinal direction by being inserted.
A lid is provided, and the lid is provided with respect to the receiving recess.
A pressing protrusion for pressing the joint fitting is provided.
The fixed wall, the stopper, and the pressing wall cause the joint to move.
A waterproof protective cover, which is characterized in that it has an int fixing part . 2. The waterproof protective cover according to claim 1.
At the entrance of the receiving recess of the joint fixing wall,
To smoothly accept the joint metal fittings
A waterproof protective cover that is equipped with a locking claw to prevent it .