JP2650547B2 - Method of forming waterproof structure and waterproof structure formed by the method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a waterproof structure and a waterproof structure formed by the method.
It is cured by a light beam irradiated through a light transmitting means such as an acrylic rod.

[0002]

2. Description of the Related Art Conventionally, parts used for wiring of a wire harness such as a grommet and a protector, and electric parts such as a connector and a junction box have been used for electric wires and wires.
Various waterproof structures for protecting terminals and the like from moisture have been proposed.

For example, in a grommet shown in FIG. 14, a plurality of electric wires 3 constituting a wire harness 2 with a waterproofing agent 1 are provided.
It is configured to waterproof between each other (between lines).

The grommet body 4 is made of a material having elasticity, and is provided with a small-diameter cylindrical portion 4a and a large-diameter portion 4b continuously.
A through hole 4c through which the wire harness 2 is inserted is formed. Further, an annular groove 5 is provided on the outer peripheral portion of the enlarged diameter portion 4b as an engaging portion, and an edge portion (not shown) of an insertion hole provided in the panel is engaged with the annular groove 5 to thereby attach the grommet body 4 to the panel. Is held.

[0005] The waterproofing agent 1 is provided with an enlarged diameter portion 4 of the grommet body 4.
b. The waterproofing agent 1 has a liquid curability which is initially liquid but hardens with the passage of time, and penetrates between the electric wires 3 of the wire harness 2 located at the enlarged diameter portion 4b to fill these gaps. Filling to prevent water intrusion.

At the time of assembling, first, the small-diameter cylindrical portion 4a of the grommet main body 4 is elastically pushed open, and the wire harness 2 is opened.
Into the through hole 4c of the grommet body 4. Further, the tape 6 is wound around the outer peripheral portion of the wire harness 2 on the small-diameter cylindrical portion 4a side and tightened. Next, with the small-diameter cylindrical portion 4a facing downward in the drawing, the enlarged-diameter portion 4
The liquid waterproofing agent 1 before curing is injected from the opening on the b side, and is left until the waterproofing agent 1 is cured.

[0007]

When the waterproofing structure shown in FIG. 14 is adopted, the waterproofing agent 1 is injected from the opening of the grommet main body 4, so that the waterproofing agent is provided between the electric wires 3 constituting the wire harness 2. 1 does not sufficiently penetrate, and it is difficult to obtain a sufficient waterproofing effect. In addition, it is difficult to fill the space between the electric wires 3 sufficiently even when filling with a water-resistant rubber that does not cure in place of the liquid curable waterproofing agent as described above.

Further, since the next step needs to be performed after the waterproofing agent 1 has hardened to some extent, the work time required for assembling the grommet becomes long. Further, since a device for holding the grommet body 4 is required while waiting for the waterproofing agent 1 to harden as described above, a large work space is required.

As in the case of the above-mentioned grommet, when the normal line waterproofing, the connector, the junction box and the like are made to have a waterproof structure, the waterproof portion, the liquid hardening waterproofing agent and the like are sufficiently penetrated and filled into the gaps. It was difficult to do.

[0010] On the other hand, conventionally, there has been provided a resin (photo-curable resin) which cures when irradiated with light. This photocurable resin can easily adjust the viscosity before irradiation with light. Therefore, for example, by filling the photo-curable resin having an appropriate viscosity in the waterproof structure shown in FIG. 14 described above, the photo-curable resin can be sufficiently penetrated and filled between the electric wires 5.

However, when the light-curing resin is used for the waterproof structure of the grommet as described above, the light does not reach the portion between the electric wires 3 even when the light is irradiated from outside the wire harness, and the light-curing resin is used. It is difficult to cure sufficiently. Similarly, when a light-curing resin is used in the waterproof structure of the connector or the like, the light may not sufficiently reach a portion to be irradiated with the light.

The present invention has been made to solve the above-mentioned problems in the conventional waterproof structure, and has been made to improve the waterproofness by using a photocurable resin.

[0013]

Therefore, according to the present invention, a light-curing resin is injected into a gap to be waterproofed, one end of a light transmitting means is inserted into the light-curing resin, and a light beam from a light source is transmitted to the light-curing resin. Irradiation through light transmission means to cure the photo-curing resin,
It is another object of the present invention to provide a method for forming a waterproof structure, wherein the gap is sealed.

Further, the present invention provides a waterproof structure formed by the above method. That is, the present invention cures a photocurable resin filled between wires of a wire harness whose outer peripheral portion is covered with a coating material by a light beam irradiated through a light transmitting means having one end disposed inside the photocurable resin. hand,
It is intended to provide a waterproof structure characterized by sealing between lines.

The wire harness may be inserted into the grommet, and the portion filled with the photocurable resin may be inserted into the small-diameter cylindrical portion of the grommet to provide a grommet waterproof structure.

The present invention also provides a photo-curable resin filled in a protector in which a wire harness is disposed, which is cured by a light beam irradiated through a light transmitting means having one end inserted into the cured resin. It is intended to provide a waterproof structure characterized by sealing the inside.

Further, according to the present invention, there is provided a wire harness having an outer peripheral portion covered with a covering material, comprising at least one or more branch connection portions, and the branch connection portions are accommodated in a transparent bag filled with a photocurable resin, It is an object of the present invention to provide a waterproof structure characterized in that the photocurable resin is cured by a light beam irradiated through a light transmitting means having one end disposed inside a wire harness.

Further, the present invention relates to a connection structure for connecting male and female terminals in a cavity formed by fitting these housing members into each other in a pair of housing members, and The filled light-curing resin is cured by a light beam irradiated from one of the housing members through a light transmitting means inserted into the inside of the light-curing resin, thereby sealing the inside of the cavity. Provides structure.

The light transmitting means is an optical path made of a transparent material such as an optical fiber or an acrylic rod, and may be solid or tubular. When the light transmitting means is tubular, it is waterproof through the light transmitting means. A photocurable resin may be injected into the gap to be formed.

[0020]

According to the present invention, since the light-cured resin injected into the gap is irradiated with the light beam through the light transmitting means as described above, the surrounding area is surrounded and the light beam cannot be irradiated from the outside. However, a waterproof structure made of a photocurable resin can be formed.

Although it is difficult to irradiate the inside of the protector, the connector, the junction box and the like with light from the outside, according to the method of the present invention using an optical fiber as described above, a waterproof structure made of a photocurable resin is used. Can be formed.

When the waterproof structure of the present invention is applied to waterproofing between wires of a wire harness, the photocurable resin is cured by irradiating a light beam, so that the process can be immediately shifted to the next step.

[0023]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; The first embodiment of the present invention shown in FIGS.
In the embodiment, the wire harness 2 in the grommet portion is used.
Waterproof structure between the electric wires 3 constituting the wire (waterproof structure between wires)
It is.

The grommet body 10 made of an elastic material has a small-diameter cylindrical portion 10a for inserting and holding the wire harness 2, and a large-diameter portion 1 continuous with the small-diameter cylindrical portion 10a.
0b to form a through hole 10c. Further, an annular groove 10d is provided on the outer peripheral portion of the enlarged diameter portion 10b to serve as an engagement portion. An edge of an insertion hole 11a formed in a panel 11 of the vehicle is fitted into the annular groove 10d, and the grommet body 10
Is fixed to the panel 11.

The wire harness 2 is inserted through the through hole 10c of the grommet body 10 in a state where the outer peripheral portions of the plurality of electric wires 3 are wound around and covered with a tape 6 constituting a covering member. The small-diameter cylindrical portion 10 of the wire harness 2
In a portion located inside, a waterproof layer 13 is formed by filling a light curable resin 12 between a plurality of electric wires 5 constituting the wire harness 3 (between lines). Small diameter cylindrical part 10a
Is elastically fastened to the outer peripheral portion of the wire harness 2, and the waterproof layer 13 is
c is in close contact with the inner peripheral surface.

The photo-curing resin 12 is a known type of photo-curing resin such as an acrylic resin or a silicon resin.

The waterproof structure of the first embodiment is formed by the following steps. First, as shown in FIG. 2, an optical fiber 15 constituting a light transmitting means is inserted into the inside of the wire harness 2, and one end 15 a of the optical fiber 15 is arranged inside the wire harness 2.

The optical fiber 15 is a circular tube, and the inner diameter and the outer diameter are the material of the optical fiber 15 itself,
2 and the type of the light source 18 described later are appropriately set.

Next, a resin supply means 16 is connected to the other end 15b of the optical fiber 15. The resin supply means 16 includes a pump and the like, and is provided with a liquid photocurable resin 12.
Is press-fitted into the optical fiber 15.

A tape 6 is wound around the outer periphery of the wire harness 2 to cover the same. At this time, the unwound portion 2 in which the wire harness 2 is exposed without the tape 6 wound so that the end 15b of the optical fiber 15 on the resin supply means 16 side is outside the wire harness 3.
a is provided.

In this state, the resin supply means 16 is driven, and a predetermined amount of the photocurable resin 12 is injected into the wire harness 3 via the optical fiber 15. The photo-curing resin 12 is ejected from the end 15a of the optical fiber 15 and the optical fiber 1
The photocurable resin 12 is diffused near the tip of the end 15a of the fifth.

Subsequently, the small-diameter cylindrical portion 10a of the grommet body 10 is elastically pushed open, and the wire harness 2 is inserted into the through hole 10c. At this time, as described above, the end 15a of the optical fiber 15 of the wire harness 2, that is, the portion where the photocurable resin 12 is diffused is arranged at the small-diameter cylindrical portion 10a of the grommet body 10. Thereby, the portion of the wire harness 3 into which the photocurable resin 12 has been injected is elastically fastened by the small-diameter cylindrical portion 10a, and the photocurable resin 12 is reliably filled in the gap between the electric wires 3.

Next, the resin supply means 16 is removed from the end of the optical fiber 15 and the light beam generation means 18 is connected.
The light source means 18 is determined by the type of the photocurable resin 12 and the like, and for example, an ultraviolet light source (UV light source) or the like is used.

The light source 18 generates a light beam and irradiates the light curable resin 12 with the light beam via the optical fiber 15. At this time, since the end 15a of the optical fiber 15 is inserted into the photocurable resin 12 as described above, the light curable resin 12 can be reliably irradiated with the light from the optical fiber 15. Therefore, the photocurable resin 12 irradiated with the light rays as described above hardens firmly, and forms the waterproof layer 13 that seals the space between the lines.

After the waterproof layer 13 is formed as described above, the optical fiber 15 is pulled out from the unwound portion 2a of the wire harness 2 and the tape 6 is wound around the unwound portion 2a.

In the first embodiment, the liquid photocurable resin 12 is placed between the electric wires 3 constituting the wire harness 2 with the outer peripheral portion of the wire harness 2 covered with the tape 6 as described above.
After the photocurable resin 12 is injected, the outer peripheral portion of the wire harness 3 is tightened by the small-diameter cylindrical portion 10a of the grommet main body 10, so that the photocurable resin 12 is securely connected to the electric wires 3. It is possible to reliably fill the gap.

In the first embodiment, since the photocurable resin 12 is filled with the tubular optical fiber 15 and the light beam is irradiated through the optical fiber 15, the wire harness 3 covered with the tape is used. Light curable resin 1 inside
Irrespective of the arrangement of 2, the light can be surely irradiated and cured.

Further, in the first embodiment, the light curable resin 12 can be cured by irradiating light rays as described above,
The grommet main body 10 and the wire harness 2 can be promptly shifted to the next step. In the first embodiment, the photocurable resin 12 may be filled after the wire harness 2 is attached to the grommet body 10, or the optical fiber may be cured by irradiating the photocurable resin 12 with a light beam. The wire 15 may be wound around with the tape 6 in the same manner as the electric wire 3 without being pulled out from the wire harness 2.

The second embodiment of the present invention shown in FIG. 4 is a waterproof structure between wires of a wire harness disposed in a protector. The protector 22 has a configuration in which an upper opening 23a of the protector main body 23 in the drawing is closed by a separate lid member 24 to form a space having a rectangular cross section in which the wire harness 2 is accommodated.

The protector body 23 is provided with an engagement protrusion 26 having an arrow shape, while the cover 24 is provided with the engagement protrusion 26.
The cover 24 is fixed to the protector main body 23 by the engagement protrusions 26 and the engagement holes 27.

The wire harness 3 includes a protector body 23
The tape 6 is not wound on the portion accommodated in the inside, and the tape 6 covers only both side portions protruding from the protector body 23.

In the second embodiment, waterproof layers 28A and 28B are formed near both ends in the protector body 23, respectively. The waterproof layers 28A, 28B respectively close the entire rectangular cross section of the space formed by the protector body 23 and the lid 24, and the waterproof layers 28A, 28 in the protector 22.
The space sandwiched by B is sealed from the outside and waterproofed.

When forming the waterproof structure of the second embodiment, first, a pair of optical fibers 29A and 29B are inserted into the inside of the wire harness 2 so that the tip ends thereof are located at a predetermined distance. The wire harness 2 is arranged in the protector main body 23, and the tape 6 is wound around an outer peripheral portion of a portion protruding from the protector main body 23. The optical fibers 29A and 29B are cylindrical members having the same configuration as that of the first embodiment.

Next, after the cover 24 is attached to the protector body 23, the liquid photo-curable resin 12 is poured into the protector via the optical fibers 29A and 29B. The optical resin 12 is adjusted to have such a viscosity that it can penetrate into the gap between the electric wires 5 of the wire harness 3 but does not flow out of the protector body 23. Subsequently, a light source (not shown in FIG. 4) is connected to the end of the optical fiber 29, and the light source irradiates the light curable resin 12 via the optical fiber 29 with the light to cure the light, thereby curing the inside of the protector 22. Seal.

The waterproof structure between the wires of the wire harness in the protector 22 of the second embodiment is similar to that of the first embodiment. Since the photocurable resin is irradiated with a light beam by the fiber, the photocurable resin can be sufficiently cured and the waterproofness can be improved.

The waterproofing between lines filling the gaps between the electric wires constituting the wire harness is not limited to the first and second embodiments. For example, as shown in FIG. 5, a tape 6 may be wound around the outer periphery, and a waterproof layer 13 made of a photocurable resin 12 may be provided on a part of the wire harness 2. The method of forming the waterproof structure in this case is substantially the same as that of the above-described first embodiment, and a description thereof is omitted.

In the third embodiment of the present invention shown in FIGS. 6 and 7, a plurality of branch connection portions 30 for branching and connecting the electric wires 3 are provided inside the wire harness 2.
Has a waterproof structure. That is, as shown in detail in FIG. 7, the middle part of one electric wire 3A and the other electric wire 3B
The sheath 32 at the tip of the tube is removed to expose the solid wires 34, and these solid wires 34 are connected to the conductive tubular member 35.
The two electric wires 3A and 3B are connected by crimping.

The branch connection part 30 is provided with a transparent film 36.
, And a waterproof layer 37 made of the photocurable resin 12 is provided inside.

The waterproof structure of the third embodiment is formed as follows. First, among the electric wires 3 constituting the wire harness 2, predetermined electric wires 3A and 3B are branched and connected as described above to form a branch connecting portion 30, and then the branch connecting portion 30 is formed into a cylindrical transparent film. 36.

As the transparent film 36, known types such as vinyl chloride and acrylic sheet can be used. In the third embodiment, a heat-shrinkable film is used.

Heat is applied to one end of the transparent film 36 to shrink it to close the opening, the photocurable resin 12 is injected from the opening at the other end, and then heat is also applied to this opening. To close. Further, the optical fiber 38 is inserted into the inside of the wire harness 2 so as to be located near the branch connection portion. The optical fiber 38 is solid and has a diameter set according to the amount of light from the light source.

In this state, the tape 6 is wound around the outer periphery of the wire harness 2 to cover it. Next, a light beam generating means (not shown) is connected to the end of the optical fiber 38, and a light beam is applied to each connecting portion via the optical fiber 38, whereby the photocurable resin 12 is cured and the transparent film 36 is cured. Waterproof layer 37 inside
To form

In the third embodiment, since the light curing resin 12 covering the branch connection portion 30 by the optical fiber 38 inserted into the inside of the wire harness 2 as described above is irradiated with a light beam,
The branch connection portion 30 located inside the wire harness 2 and not reachable even when irradiated with a light beam from the outside can be reliably irradiated with the light beam, and a waterproof structure can be quickly formed.

The fourth embodiment of the present invention shown in FIG. 8 has a structure for waterproofing a set of connectors each having male and female terminals. The connector 41 includes a plurality of male terminals 42 or female terminals 43, and includes first and second connector housings 44 and 45 constituting a housing member. The first and second connector housings 44 and 45 are fitted to each other. Thus, the male and female terminals 42 and 43 are connected.

The first connector housing 44 has, on one side, a terminal accommodating chamber 44a for accommodating the male terminal 42, and on the other side a mating connector fitting hole 44b. It protrudes from the hole 44b. The second connector housing 45 has a terminal accommodating chamber 45a for accommodating the plurality of female terminals 43.

In the connector 41 of the fourth embodiment, the second connector housing 45 is fitted into the mating connector fitting hole 44b of the first connector housing 44, and the distal end of the male terminal 42 is inserted into the female terminal 43. These are connected.

A guide hole 45c is provided to penetrate from the end of the second connector housing 45 opposite to the side fitted with the first connector housing 44 to the terminal accommodating chamber 45a. The solid optical fiber 38 is inserted through the guide hole 45c. The terminal 48 crimped to the tip of the optical fiber 38 is fixed to the terminal accommodating chamber 45a.

In the fourth embodiment, the waterproof layer 50 is formed by filling the cavity formed by the terminal accommodating chambers 44a and 45a communicating with the first and second connector housings 44 and 45 fitted therein with the photocurable resin 12. doing.

The waterproof structure of the fourth embodiment is formed as follows. First, the photocurable resin 1 is placed in the terminal accommodating chambers 44a, 45a of the first and second connector housings 44, 45.
Fill 2 This light-cured resin is supplied to the terminal accommodating chamber 44a,
The viscosity is set to a certain level so as not to flow out from inside 45a.

Next, after fitting the first and second connector housings 44 and 45 as described above, a light source (not shown) is connected to the other end of the optical fiber 38, and the light is transmitted through the optical fiber 38. The cured resin is irradiated with a light beam. The irradiation of the light beam cures the photocurable resin, and thus the terminal accommodating chamber 4
A waterproof structure in which the inside of 4a and 45a is filled with a photocurable resin is obtained. After the light beam irradiation, the optical fiber 38 may be cut and removed as shown by A in FIG.

In the fourth embodiment, as described above, the optical fiber 38 is disposed in the second connector housing 45 in advance, so that the accommodation chamber is surrounded so that light cannot be irradiated from the outside after fitting. The light-curing resin 12 filled in the insides of 44a and 45a is irradiated with a light beam to provide a waterproof structure.

The fifth embodiment of the present invention shown in FIGS. 9 and 10 is a waterproof structure of a connection portion between a junction box 52 constituting a housing member and a connector housing 55 of a wire harness 2. The junction box 52 has a bus bar 53 therein, and the bus bar 53 forms a circuit for connecting the fuse chip 54 and the like to the wire harness 2.

The connector housing 55 on the wire harness side provided at the end of the wire harness 2 is hollow, and holds the female terminal 56 in the partition wall 55a. The female terminal 56 has one end on which a terminal portion is formed protruding into a lower connection chamber 55b in the figure, and has a solid line 34 of the electric wire 3 on the other end side.
Is connected by caulking.

The connector 55 has a solid optical fiber 38 inserted into the connection chamber 55b. Optical fiber 38
The terminal 48 is connected to the tip of the terminal 55, and the terminal 48 is held by the partition wall 55a.

On the other hand, on the upper surface of the junction box 52, an open tubular connector portion 58 is provided. The connector portion 58 has a male terminal portion 59 formed by folding a part of the bus bar 53 so as to project therefrom.

In the fifth embodiment, the connector 55 on the wire harness side is fitted into the connector portion 58 of the junction box 52, so that the female terminal 56 and the male terminal portion 59 are connected to the connection chamber 55b and the upper surface of the junction box 52. Are connected in a hollow portion formed by the photo-curable resin 12, and this portion is filled with a photocurable resin 12 to form a waterproof structure.

In forming the waterproof structure of the fifth embodiment,
First, before the connector 55 and the connector portion 58 are fitted, a photocurable resin is injected into the connector portion 58 and the connection chamber 55b. Then, after the wire harness side connector 55 and the connector portion 58 are fitted to each other, a light beam is irradiated via the optical fiber 38 onto the light-curing resin 12 disposed in the cavity formed by the connection chamber 55 b and the upper surface of the junction box 52. Allow to cure and thus seal the cavity.

In the fifth embodiment, the optical fiber 38 is previously arranged in the connection chamber 55b of the wire harness side connector 55 connected to the junction box 52 as described above.
The light beam can be emitted after fitting to the connector portion 58 on the main body side of No. 2. For this reason, in the fifth embodiment, the photocurable resin 12 can be filled in the connection chamber 55b in advance, and reliable waterproofing can be achieved at this portion.

The present invention is not limited to the above embodiment, but can be variously modified. For example, the light transmitting means is not limited to an optical fiber, but may be any optical path formed of an acrylic rod or another transparent material. Also, as shown in FIGS. 11A and 11B, if cuts 62, saw-tooth-shaped steps 63, and the like are provided at appropriate intervals around the optical fiber 61, only these ends can be used. Instead, light can be emitted from these portions.

Further, in the third embodiment, only one optical fiber 38 is used as shown in FIG. 8, but the optical fiber 38 may be provided corresponding to each branch connection part 30. good. In the third embodiment, the light-curable resin is accommodated in the heat-shrinkable transparent film to waterproof the branch connection portion. However, the following method may be adopted. That is,
First, as shown in FIG. 12, a photo-curable resin 67 is dropped on a transparent waterproof film 66 disposed on a taping roll 65 of a known electric wire tape winding machine.
The branch connection part 30 is arrange | positioned. Next, the transparent auxiliary waterproof film 68 is pressed from above onto the branch connection portion 30 disposed in the photo-curing resin 67, and the taping roll 6 is left as it is.
5 is housed in the slit 65a. When the taping roll 60 is rotated in this state, as shown in FIG.
The waterproof layer can be formed around the branch connection portion 30 in the same manner as in the third embodiment described above.

[0071]

As is apparent from the above description, according to the present invention, the light-curing resin is irradiated with light through the light transmitting means to form a waterproof structure. Even if the surrounding area is surrounded, such as between the wires of a wire harness whose outer periphery is covered with a covering material such as tape or inside the housing of a connector, etc., the light-cured resin is reliably irradiated with light rays and quickly waterproofed. A structure can be formed.

Further, according to the present invention, after completion of other steps such as tape winding and grommet mounting in a wire harness, a step of closing the protector body with a lid, or a step of fitting a connector, the light transmitting means is used. By irradiating a light beam, a waterproof structure can be formed, so that there is no need to stop other steps for forming the waterproof structure, and the work can be performed efficiently.

Further, since the viscosity and the like of the photocurable resin can be easily adjusted, the photocurable resin can be reliably injected into the gap to be waterproofed, and can be prevented from flowing out before being irradiated with light rays. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a state in which an optical fiber is inserted into a wire harness in the first embodiment.

FIG. 3 is a schematic view showing a state where a wire harness is inserted through a grommet in the first embodiment.

FIG. 4 is a schematic view showing a second embodiment of the present invention.

FIG. 5 is a schematic view showing another waterproof structure between lines according to the present invention.

FIG. 6 is a schematic view showing a third embodiment of the present invention.

FIG. 7 is an enlarged view of a part VI of FIG. 6;

FIG. 8 is a schematic view showing a fourth embodiment of the present invention.

FIG. 9 is a perspective view showing a fifth embodiment of the present invention.

FIG. 10 is a sectional view taken along line VV in FIG. 9;

FIGS. 11A and 11B are schematic diagrams each showing a modified example of an optical fiber.

FIG. 12 is a schematic diagram showing a modification of the third embodiment.

FIG. 13 is a schematic view showing a waterproof structure of a branch connection portion in a modification of the third embodiment.

FIG. 14 is a sectional view showing a conventional waterproof structure.

[Explanation of symbols]

 Reference Signs List 2 wire harness 3 electric wire 10 grommet 12 light curing resin 15, 29, 38 optical fiber 16 resin supply means 18 light source 22 protector 41 connector 52 junction box

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication location H01R 13/52 301 7815-5B H01R 13/52 301F

Claims (5)

(57) [Claims] 1. A light-curing resin is injected into a gap to be waterproofed, one end of a light transmitting means is inserted into the light-curing resin, and a light beam from a light source is irradiated through the light transmitting means. A method for forming a waterproof structure, comprising curing a cured resin and sealing the gap. 2. A photo-curing resin filled between wires of a wire harness whose outer peripheral portion is covered with a coating material is cured by a light beam irradiated through a light transmitting means having one end disposed inside the photo-curing resin. A waterproof structure characterized by sealing between lines. 3. A light-curing resin filled in a protector in which a wire harness is arranged is cured by a light beam irradiated through a light transmitting means having one end inserted into the cured resin, thereby sealing the inside of the protector. Waterproof structure characterized by becoming. 4. An electric wire of a wire harness having an outer peripheral portion covered with a covering material, the electric wire having at least one or more branch connection portions, and the branch connection portions are housed in a transparent bag filled with a photocurable resin, and A waterproof structure characterized in that the photocurable resin is cured by a light beam radiated through a light transmitting means having one end disposed on the photocurable resin. 5. In a connection structure for connecting male and female terminals in a cavity formed by fitting these housing members to each other in a pair of housing members, the photo-curing resin filled in the cavity is provided. The resin is cured by a light beam irradiated from any of the housing members through a light transmission unit inserted into the photocurable resin,
A waterproof structure characterized by sealing the inside of the cavity.