JP2589251Y2 - 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 protective cover for waterproofly protecting a connection portion of an electric wire.

[0002]

2. Description of the Related Art FIG. 5 shows an electric wire protection cover 1 disclosed in Japanese Utility Model Laid-Open Publication No. 59-119576.

The electric wire protection cover 1 is composed of two half cylinders 5a and 5b connected by a hinge 3 so as to be openable and closable.
Outer chamber walls 9a and 9b, which are outer walls of the protective cover 1, are formed on the outer periphery of the inner chamber walls 7a and 7b, and the inner chamber 11a is formed inside the inner chamber walls 7a and 7b. , 11b
However, gaps 13a, 13b are formed between the inner chamber walls 7a, 7b and the outer chamber walls 9a, 9b. Openings 15a and 15b are provided concentrically at both ends of the protective cover 1, and a pair of engaging portions 17a and 17b are formed at side edges where the hinge 3 is not formed. Inner room walls 7a, 7
b, the interior of the inner chambers 11a and 11b is filled with an insulating compound 19, and the upper surfaces of the inner chambers 11a and 11b are
A release sheet (not shown) is placed on the insulating compound 19 to prevent the insulating compound 19 from drying and hardening.

According to such an electric wire protection cover, after the release sheet is peeled off, the connecting portions 23 of the electric wires 21 connected by crimping or the like are arranged in the inner chambers 11a and 11b, and the half cylindrical bodies 5a and
By closing 5b and engaging the engaging portions 17a, 17b, the connecting portion 23 can be easily insulated and protected.

[0005] FIG.
FIG.

The electric wire protection cover 25 has a hinge 27
Half-members 29a, 29 which are openably and closably connected with each other
b, a round hole 35 through which the base line 31 is inserted is formed at one end in a state where the two half members 29a and 29b are combined,
The other end has an oval hole 37 through which the base line 31 and the attachment line 33 are inserted.
Are formed. At both ends of the two half members 29a, 29b located inside the holes 35, 37, wall portions 39a, 39 are provided.
The filling portions 41a and 41b surrounded by “b” are provided, and the filling portions 41a and 41b are filled with the sealant 43.
Storage chambers 45a and 45b are formed between the filling portions 41a and 41b of the two half members 29a and 29b, and a convex portion is formed at substantially the center of the wall portions 39a and 39b forming the filling portions 41a and 41b on the elliptical hole 37 side. Pieces 47a and 47b are protruded.

According to such an electric wire protection cover 25,
When the connecting portions 49 of the base line 31 and the attachment line 33 are accommodated in the accommodation chamber 45 and the two half members 29a and 29b are fitted, the elliptical hole 37 is formed.
The protrusions 47a and 47b are formed by the sealant 43 at the side filling portion 41.
Is guided between the electric wires 31 and 33, and the sealant 43 is filled with the base line 31 and the auxiliary line 33 at the filling portions 41 at both ends of the cover 25.
, The water can be prevented from penetrating from both holes 35 and 37, and the connection portion 49 can be protected by waterproofing.

[0008]

However, in the electric wire protection cover 1 shown in FIG.
a, 5b, it is not possible to specify the position of the connecting portion 23, so that the connecting portion 23 is located through the openings 15a, 15b, or the pair of engaging portions 17a,
The connection portion 23 may be located at a position closer to 17b. For this reason, the sealing function is reduced.

Further, when the electric wire 21 is routed in the half cylinders 5a and 5b, the connecting portion 23 is placed on a substantially central portion of the insulating compound of one half cylinder 5b, and then the other half cylinder 5a is placed.
a, the wire 21 is displaced from the openings 15a, 15b, and the half cylinders 5a, 5b cannot be locked with each other. If the half cylinders 5a, 5b are forcibly locked, the wire is damaged. There is a problem of doing.

In the electric wire protection cover 25 shown in FIG. 6, when the base line 31 is disposed on the half members 29a and 29b,
Since the position of the connection portion 49 cannot be specified, the same problem as the above-described wire protection cover shown in FIG. 5 occurs.

Therefore, the present invention has been made to solve such a conventional problem, and an object thereof is to regulate the movement of the electric wire and to determine the position of the electric wire. To provide a cover.

[0012]

In order to achieve the above-mentioned object, according to the present invention, the upper and lower case members are formed inside the upper and lower case members in a state where the upper and lower case members, which are halved along the base line insertion direction, are joined together. In a waterproof protection cover filled with a flexible insulating sealant in an electric wire connection portion accommodating chamber in which a connection portion connecting the core wires of the base line and the auxiliary wire is accommodated, any one of the upper case member and the lower case member A pair of positioning ribs protruding from one of the bottom walls on one side of the electric wire connection portion, the base line being inserted and supported, and restricting movement in a direction crossing the electric wire insertion direction; and the upper case member And at least one bottom wall of the lower case member protrudes from the other side of the wire connection portion, is inserted between the base line and the attachment line, and is connected to the wire connection portion in a direction crossing the wire insertion direction. Restrict movement It is characterized by providing the terminal displacement prevention pin that.

According to the invention of claim 2, according to the invention of claim 1,
The waterproof protection cover is characterized in that the positioning rib has a contact surface provided in the vicinity of the electric wire connection portion to restrict movement of the electric wire connection portion in a wire insertion direction.

[0014]

According to the first aspect of the present invention, after each of the upper case member and the lower case member is filled with the sealant, for example, one side of the wire connection portion is inserted between a pair of positioning ribs provided on the lower case member. The core wire of the base line is inserted and arranged, and the electric wire connection portion is arranged at the center of the lower case member. On the other side of the electric wire connection portion, a terminal shift prevention pin is inserted between the base line and the attached line. Then, the upper case member and the lower case member are brought into a combined state. Thereby, the electric wire connection portion is accommodated in the electric wire connection portion accommodation room. At this time, since the base line of the base line is inserted between the pair of positioning ribs, the movement of the base line in a direction intersecting the insertion direction of the base line is restricted. In addition, since the positioning ribs protrude only from the bottom wall of one of the case members, the sealing agent easily enters the periphery of the base line inserted between the pair of positioning ribs in a state where the upper and lower case members are aligned. The waterproof performance around the core wire is improved. In addition, the provision of terminal shift prevention pins
This can also restrict the movement of the electric wire connection portion in a direction intersecting the electric wire insertion direction. Also, since the terminal slip prevention pin is inserted between the base line and the accessory line,
The base line and the auxiliary line can be separated from each other, and the sealing agent can easily enter between them.

According to the second aspect of the present invention, by providing a pair of positioning ribs in the vicinity of the wire connection portion, even if the wire tries to move in the wire insertion direction, the wire connection portion abuts on the contact surface and the wire connection portion abuts. Restrict movement.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the waterproof protective cover according to the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of the waterproof protective cover according to the present invention, and FIG. 2 is an overall perspective view of the waterproof protective cover.

As shown in FIGS. 1 and 2, the waterproof protective cover 51 is formed by dividing a box-shaped case formed of an insulating resin in half along the longitudinal direction, and comprises two upper and lower case members. 53a and 53b. The side walls 55a, 55b, which are the left and right edges in the longitudinal direction of the upper and lower case members 53a, 53b, are connected via hinges 57, whereby the upper and lower case members 53a, 53b are opened and closed in a combined state and an open state. It is possible.

The locking projection 6 is provided on the outer surface of the side wall 59b of the lower case member 53b on the other side where the hinge 57 is not provided.
1, 61 are protruded, and the side wall 59a of the upper case member 53a is provided.
Are provided with flexible locking frames 63, 63 on the outer surface thereof. Then, the upper and lower case members 53a, 53b are brought into the aligned state, so that the locking frames 63, 63 are locked.
1 and 61 are locked by one touch. Further, the first joint is provided at the joint between the end walls 65a, 65b, 67a, 67b in the longitudinal direction of the upper and lower case members 53a, 53b.
And a second electric wire insertion hole 71 are formed.

The upper and lower case members 53a and 53b are provided with first partitions 73a and 73b and second partitions 75a and 75b substantially orthogonal to the longitudinal direction. First partition 73
A first hole 77 is formed at the joint between a and 73b,
The second hole 7 is provided at the joint of the second partition walls 75a and 75b.
9 are formed. These first and second partition walls 73
The inside of the upper and lower case members 53a, 53b is formed by both end walls 65a, 65b, 67 by the a, 73b, 75a, 75b.
a, 81b, the first storage chambers 81a, 81 located inside
b, the second storage chambers 85a and 85b, and the wire connection portion storage chambers 83a and 83b located therebetween.

When the upper and lower case members 53a and 53b are brought into the mating state, the upper and lower first partition walls 73a and 73b
The first and second partitions 75a and 75b are combined with each other to form a first storage chamber 81, an electric wire connection portion accommodating chamber 83, and a second storage chamber 85 inside the waterproof protection cover 51.

The electric wire connection chambers 83a and 83b located at the center of the upper and lower case members 53a and 53b are filled with a jelly-like sealant 87 as a flexible insulating sealant. The material used as the jelly-like sealant 87 is, for example, low-viscosity butyl rubber, mineral oil-based grease, silicone-based grease, silicone rubber, or the like.

The electric wire connecting portion accommodating chamber 83 accommodates a connecting portion 49 of an electric wire branched from the electric wire 31 to the attachment line 33, and the electric wire 31 is provided with a first electric wire insertion hole 69 and a first hole 7.
7, the electric wire 31 and the accessory wire 33, which are branched and connected, pass through the second electric wire insertion hole 71 and the second hole 79.

Further, a positioning plate 91 is provided upright from the bottom wall 93 of the electric wire connection portion accommodating chamber 83b on the first storage chamber 81b side of the electric wire connection portion accommodating room 83b of the lower case member 53b. The positioning plate 91 has a rectangular notch 95 formed at the tip, and both side walls forming the notch 95 are a pair of positioning ribs 97a and 97b. The distance between the positioning ribs 97a and 97b is set shorter than the outer diameter of the electric wire 31 and longer than the outer diameter of the core portion of the electric wire 31. In a state in which the jelly-like sealant 87 is filled in the electric wire connection portion accommodating chamber 83b, the positioning rib 9
The tip portions of 7a and 97b protrude from the upper surface of the sealant 87 as shown in FIG. The core portion of the electric wire 31 inserted through the first electric wire insertion hole 69 and the first hole 77 is inserted between the positioning ribs 97a and 97b.
The arrangement restricts the movement of the electric wire in a direction crossing the electric wire insertion direction. Also, the positioning rib 97
a, 97b are connected to the electric wire connecting portions 49b on the side of the second storage chamber 85b.
, And serves as a contact surface for restricting movement of the electric wire 31 in the wire insertion direction.

Also, the second storage chambers 85a of the electric wire connection part accommodation chambers 83a, 83b of the upper and lower case members 53a, 53b,
On the 85b side, triangular terminal displacement prevention pins 89a, 89
b stands upright from the bottom walls of the electric wire connection portion accommodating chambers 83a and 83b, respectively.

Further, immediately inside the side wall 59a of the upper case member 53a on the opening side of the electric wire connection part accommodating chamber 83a, the electric wire connection part accommodating chamber of the lower case members 53a, 53b in a state where the upper and lower case members 53a, 53b are aligned. A leak-proof plate 89 is provided which is accommodated immediately inside the side wall of the opening 83a.

When protecting the connecting portion 49 of the electric wire in which the accessory wire 33 is branched from the electric wire 31 with the waterproof protection cover configured as described above, first, the upper and lower case members 53 are used.
a, 53b are opened, and the connecting portion 49 is housed in the wire connecting portion housing chamber 83b of the lower case member 53b. At this time, the electric wire 31 is inserted into the first electric wire insertion hole 69, and
The electric wire 31 and the accessory wire 33 are inserted into the electric wire insertion hole 71 of the above. Further, the core portion of the electric wire 31 is located between the pair of positioning ribs 97a and 97b, so that the movement of the electric wire in the electric wire insertion direction is regulated and positioned. Also, the electric wire 31, the auxiliary wire 33, and the electric wire connecting portion 49 are arranged such that the lower terminal displacement prevention pin 89 b is located in the gap between the electric wire 31 and the auxiliary wire 33.
Is arranged.

The electric wire 31, the accessory wire 33 and the electric wire connection part 49
After disposing the lower case member 53b, as shown in FIG.
The locking frame 63 of the upper case member 53b is locked to the locking projection 61 of the upper case member 53b, as shown in FIG.
b is set to the matching state. As a result, the jelly-like sealant 87 around the electric wire 31, the accessory wire 33 and the electric wire connection portion is formed.
The wire connection portion 49 of the wire branched and connected from the wire to the accessory wire 33 can be insulated and protected. Further, when the upper and lower case members 53a and 53b are brought into the mating state, the upper and lower terminal displacement prevention pins 89a and 89b open between the electric wire 31 and the accessory wire 33, so that the sealant 87 sufficiently flows into this portion and the insulation of this portion is obtained. Protection can be ensured. Also, the terminal displacement prevention pins 89a, 8
9b can lock the electric wire 31 and the accessory wire 33, so that even if a tensile force is applied to the electric wire 31, there is no possibility that the electric wire connection portion 49 is displaced, and the waterproof protection of the electric wire connection portion 49 is more reliably performed. Can be performed. In the above-described embodiment, the electric wire connection portion accommodating chamber 83b of the lower case member 53b is provided.
Although the positioning plate 91 is provided in the upper case member 53a, the positioning plate 91 may be provided in the wire connection portion accommodating chamber 83a of the upper case member 53a.

[0028]

As described above, according to the first aspect of the present invention, the position of the electric wire can be determined by restricting the movement of the electric wire in a direction intersecting the electric wire insertion direction.

According to the second aspect of the present invention, the positioning rib having the contact surface is provided in the vicinity of the wire connection portion, so that the movement of the wire connection portion in the wire insertion direction can be restricted.

[Brief description of the drawings]

FIG. 1 is a plan view of a waterproof protective cover according to the present invention.

FIG. 2 is a perspective view of the waterproof protective cover according to the present invention.

FIG. 3 is a cross-sectional view showing a relationship between an upper case member and a lower case member when the waterproof protective cover of FIG.

FIG. 4 is a perspective view showing a use state of the waterproof protection cover of FIG. 1;

FIG. 5 is an overall perspective view of a conventional electric wire protection cover.

FIG. 6 (a) is a perspective view of another conventional electric wire protection cover in an open state, FIG. 6 (b) is a plan view of the combined state of FIG.
(C) is an AA sectional view of (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 31 Electric wire (base line) 33 Attached wire 49 Electric wire connection part 51 Waterproof protective cover 53a Upper case member 53b Lower case member 83a, 83b Electric wire connection part accommodation room 87 Jelly-like sealant (sealant) 91 Positioning plate 93 Bottom wall 97a, 97b Positioning rib

Claims (2)

(57) [Scope of request for utility model registration] 1. A connecting portion formed inside the upper and lower case members in a state where the upper and lower case members are halved along the insertion direction of the base line and connecting the core lines of the base line and the auxiliary line are accommodated. In a waterproof protection cover filled with a flexible insulating sealant in the wire connection portion accommodating chamber, one side of the bottom wall of the upper case member or the lower case member protrudes from one side of the wire connection portion. other of the wire connecting portion of at least one of the bottom wall of the pair of positioning ribs and said upper case member and the lower case member for restricting the movement in the direction in which the group lines intersecting the wire insertion direction is inserted and supported And a terminal slip prevention pin that is provided between the base line and the accessory line and that protrudes from the base line and that restricts movement of the wire connection portion in a direction crossing the wire insertion direction. Protective cover. 2. The waterproof protective cover according to claim 1, wherein the positioning rib is provided in the vicinity of the electric wire connection portion to define a contact surface for restricting movement of the electric wire connection portion in a wire insertion direction. A waterproof protective cover characterized by having.