JP2002295682A - Waterproof structure and washer member used for this waterproof structure - Google Patents

Abstract

(57) [Problem] To provide a waterproof structure between a panel and a male screw member, and to easily perform fastening work of a female screw member to a male screw member. A female screw member (11) is fastened to a male screw member (5) passing through an insertion hole (3) of a panel (1) via a packing member (33) and a plate-shaped washer member (35).
A washer body 23 inserted through the male screw member 5, a sliding contact surface 25 formed on one surface of the washer body 23 and slidably pressed against the female screw member 11, and formed on the other surface of the washer body 23. The waterproof structure 31 includes a pressing surface 27 that presses the packing member 33, and the female screw member 11 fastened to the male screw member 5 is positioned at a predetermined fastening position. The positioning / extension regulating portion 51 for regulating extension of the pressed packing member 33 from the center side to the outer peripheral side is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for waterproofing between a panel and a male screw member fixed through an insertion hole of a panel, and a washer member used for the waterproof structure.

[0002]

2. Description of the Related Art When a connector or the like is attached to a panel such as an automobile door, a waterproof structure as shown in FIG. 3 is used. As shown in FIG. 3, this conventional waterproof structure is such that a female screw member 5 is inserted into a male screw member 5 penetrating through an insertion hole 3 of a panel 1 through a flexible packing member 7 and a plate-shaped washer member 9. 11 are fastened.

The male screw member 5 comprises a pair of housings 13 and 15 fitted to each other, and
5 is formed on one of the outer peripheral surfaces, and comprises a male screw portion 17 to which the female screw member 11 is fastened. The male screw member 5 has one housing 13 protruding from one side of the panel 1, and the packing member 7 is inserted into the one housing 13 to waterproof the panel 1 from the housing 1. The male screw member 5 has a structure in which the other housing 15 has the panel 1.
The grommet 21 is attached so as to protrude from the other side.

The washer member 9 includes a washer body 23, a sliding contact surface 25 formed on one surface of the washer body 23, and a pressing surface 27 formed on the other surface of the washer body 23. The sliding contact surface 25 is the female screw member 1 fastened to the male screw member 5.
1 and slidably pressed. The pressing surface 27 presses the packing member 7 when the sliding contact surface 25 is pressed by the female screw member 11. The washer member 9 is inserted into one housing 13, the pressing surface 27 is in close contact with the packing member 7, and the female screw member 11 made of a nut is in close contact with the sliding contact surface 25.

In order to assemble the waterproof structure 29, first, the male screw member 5 is penetrated from one side of the panel 1 to the other side, and one housing 13 is projected from one side of the panel 1. Thereafter, the packing member 7 and the washer member 9 are inserted through one housing 13 to
1 is concluded. At this time, the female screw member 1 is
1, the sliding surface 27 of the washer member 9 is pressed by the female screw member 11 and the pressing surface 2 of the washer member 9 is pressed.
The packing member 7 is pressed by 5 to bring the packing member 7 into contact with the panel 1. In this state, when the female screw member 11 is further tightened, the packing member 7 is pressed by the pressing surface 27 of the washer member 9 to be in close contact with the panel 1, and the female screw member 11 is fastened to an appropriate fastening position of the male screw member 5. Become.

[0006]

However, in the conventional waterproof structure 29, the male screw member 5 is attached to the female screw member 11 in the conventional waterproof structure 29.
In some cases, the fastening position at which the female screw member is fastened varies from worker to worker, and the fastening force of the female screw member 11 varies. Therefore, when the fastening force of the female screw member 11 to the male screw member 5 is small, the packing member 7 and the panel 1 cannot be brought into close contact with each other. When the fastening force of the female screw member 11 to the male screw member 5 is large, the panel 1 And the washer member 9 may be crushed, and the packing member 7 may be damaged,
In any case, there was a possibility that the space between the panel 1 and the male screw member 5 could not be waterproofed.

Further, in the waterproof structure 29, the female screw member 1
Since the female screw member 11 is fastened to the male screw member 5 while paying attention to the fastening state in order to fasten the female screw member 11 so that the fastening force to the male screw member 5 does not vary, it takes time to perform the fastening operation. Was hanging.

Therefore, the present invention is to provide a waterproof connection between the panel and the male screw member without any variation in the fastening force of the female screw member, and to easily perform the fastening work of the female screw member to the male screw member. And a washer member used for the waterproof structure.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, a flexible packing member and a plate-shaped washer member are provided on a male screw member penetrating an insertion hole of a panel. The female screw member is fastened through the male screw member, and the washer member is pressed against the female screw member which is formed on one surface side of the washer body inserted through the male screw member and which is fastened to the male screw member. A waterproof structure comprising: a sliding contact surface to be formed; and a pressing surface formed on the other surface side of the washer body and pressing the packing member when the sliding contact surface is pressed by the female screw member. A positioning extension unit that positions the female screw member fastened to the male screw member at a predetermined fastening position, and regulates extension of the packing member pressed by the pressing surface from the center side to the outer peripheral side. thing And it features.

According to the first aspect of the present invention, a male screw member is passed through the insertion hole of the panel, and a female screw member is fastened to the male screw member via a packing member and a washer member. At this time, when the female screw member is tightened to the male screw member, the sliding contact surface of the washer member is pressed by the female screw member, and the packing member is pressed by the pressing surface. The female screw member is positioned at the predetermined fastening position of the male screw member by the positioning and extension restricting portion to be in a fastened state, and the packing member pressed by the pressing surface is restricted from extending from the center side to the outer peripheral side.

According to a second aspect of the present invention, there is provided the waterproof structure according to the first aspect, wherein the positioning extension restricting portion has a constant height along an outer peripheral edge of a pressing surface of the washer body. An annular projecting body projecting toward the side, covering an outer periphery of the packing member, and having an end face abutting on the panel when the female screw member is fastened to a predetermined fastening position of the male screw member; A projection formed on the inside of the main body and having a regulating surface against which an outer peripheral edge of the packing member comes into contact when the female screw member is fastened to the male screw member, wherein the packing member is a plate-shaped packing body. And a protruding portion provided on the packing body and protruding toward the panel side from the protruding portion in a free state before the female screw member is fastened to the male screw member.

According to the second aspect of the present invention, in a state where the female screw member is fastened to the predetermined fastening position of the male screw member, the end face of the projection main body abuts on the panel, and the washer member is positioned. The fastening position of the female screw member that presses the washer member is determined. Further, when the female screw member is fastened to the male screw member, the packing member is pressed toward the panel by the pressing surface of the washer member, so that the protruding portion is bent between the panel and the pressing surface, and is extended as a whole. At this time, the outer peripheral edge of the packing member comes into contact with the regulating surface, and the extension of the packing member from the center side to the outer peripheral side is regulated.

According to a third aspect of the present invention, in the waterproof structure according to the second aspect, the projecting portion is formed along an outer peripheral edge of the packing body, and the packing body is inside the projecting portion. And a housing portion formed to be thinner than the protrusion height of the protrusion of the washer member and capable of housing the protrusion when the female screw member is fastened to the male screw member. .

According to the third aspect of the present invention, when the female screw member is fastened to the predetermined fastening position of the male screw member, the protruding portion of the packing member is pressed and bent, and is housed in the housing portion. You.

The invention according to claim 4 is the waterproof structure according to any one of claims 1 to 3, wherein the male screw member comprises:
It is characterized by comprising a connector having a pair of housings fitted to each other, and a male screw portion formed on the outer peripheral surface of one of these housings.

According to the fourth aspect of the present invention, a pair of housings are first passed through the insertion holes of the connector panel fitted with each other. At this time, one housing is projected from one side of the panel, and the other housing is projected from the other side of the panel. Therefore, a female screw member is fastened to a male screw portion formed on one housing via a packing member and a washer member.

According to a fifth aspect of the present invention, there is provided a waterproof structure in which a female screw member is fastened to a male screw member penetrating an insertion hole of a panel via a flexible packing member. A plate-like washer member interposed between the female screw member, a washer body inserted through the male screw member, and a female screw member formed on one side of the washer body and fastened to the male screw member. A sliding surface that is slid and pressed, a pressing surface formed on the other side of the washer body that presses the packing member when the sliding surface is pressed by the female screw member, and is fastened to the male screw member And a positioning extension restricting portion that regulates extension from the center side to the outer peripheral side of the packing member pressed by the pressing surface while positioning the female screw member at a predetermined fastening position. That.

According to the fifth aspect of the present invention, a male screw member is passed through the insertion hole of the panel, and a female screw member is fastened to the male screw member via a packing member and a washer member. At this time, when the female screw member is tightened to the male screw member, the sliding contact surface of the washer member is pressed by the female screw member, and the packing member is pressed by the pressing surface. Then, the female screw member is positioned at the predetermined fastening position of the male screw member by the positioning and extension restricting portion to be in a fastened state, and the packing member pressed by the pressing surface is restricted from extending from the center side to the outer peripheral side.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a waterproof structure according to the present invention and a washer member used for the waterproof structure will be described. The same components as those of the conventional configuration are denoted by the same reference numerals in the drawings, and redundant description will be omitted. FIG. 1 is a sectional view showing a first embodiment of a waterproof structure and a washer member used in the waterproof structure according to the present invention. FIG. 2 is a sectional view showing the packing member and the washer member in a free state before the female screw member is fastened to the male screw member of FIG.

As shown in FIG. 1, the waterproof structure 31 has a female screw member 5 which is inserted into the male screw member 5 penetrating the insertion hole 3 of the panel 1 via a packing member 33 having flexibility and a plate-shaped washer member 35. The member 11 is fastened, and the packing member 33 waterproofs the space between the male screw member 5 and the panel 1.

The male screw member 5 includes a pair of housings 13 and 15 fitted to each other, and
5 and a male screw part 17 to which the female screw member 11 is fastened. In the male screw member 5, the grommet 21 is attached to the other housing 15, and the packing member 33 is inserted into the one housing 13.

The packing member 33 is, as shown in FIG.
The packing body 37, a protrusion 39 provided on the packing body 37, and a housing part 41 formed on the packing body 37 are formed of a synthetic resin molded product such as rubber.
And The packing main body 37 is formed of a circular flat plate, and is formed to have a smaller thickness than a height of a protrusion 49 from the washer main body 23 described later. The packing body 37 has a contact hole 43 at the center.

The contact hole 43 extends from one side surface 45 to the other side surface 47 of the packing body 37.
The contact hole 43 is provided in one housing 1 of the male screw member 5.
It is almost the same as or slightly smaller than the cross-sectional shape of 3.
In the state of being inserted through the male screw member 5, as shown in FIG.
The opening edge is in close contact with the outer peripheral surface of one housing 13. A projecting portion 39 is formed integrally with such a packing body 37.

The protruding portion 39 is formed of a projection formed in an annular shape, and protrudes along the outer peripheral edge of one side surface 45 of the packing body 37. The projecting portion 39 projects toward the panel 1 from a projection 49 of a washer member 35 described later in a free state before the female screw member 11 is fastened to the male screw member 5, and the female screw member 11 is fastened to the male screw member 5. In this state, it is in close contact with panel 1. The protruding portion 39 has a distal end surface 44 formed by a curved surface.

The above-mentioned housing section 41 is concave.
The packing body 37 is provided inside the protruding portion 39 on one side surface 45 and is formed by the one side surface 45 of the packing body 37 and the inner peripheral surface 40 of the protruding portion 39. The accommodating section 41
The volume when the packing member 33 is inserted through the male screw member 11 is substantially the same as or slightly larger than the volume of a portion of the protrusion 39 protruding from the later-described protrusion 49 to the panel 1 side. As shown, the protrusion 39 is accommodated in a state where the female screw member 11 is fastened to the male screw member 5. The packing member 33 thus formed
Is in close contact with the washer member 35 with the female screw member 11 fastened to the male screw member 5.

As shown in FIGS. 1 and 2, the washer member 35 is interposed between the packing member 33 and the female screw member 11, and is inserted into the male screw member 5, and one surface of the washer body 23. A sliding surface 25 formed on the other side, a pressing surface 27 formed on the other surface side of the washer body 23, and a positioning / extension regulating portion 51 provided on the pressing surface 27. The washer body 23 is formed of a circular flat plate,
A through hole 53 is provided at the center. This through hole 53
Is substantially the same as or slightly larger than the cross-sectional shape of one housing 13 of the male screw member 5.

The positioning / extension restricting portion 51 described above comprises a projection 49 provided on the washer body 23. Projection 49
Has a projection main body 57 formed integrally with the pressing surface 27 of the washer main body 23, and a regulating surface 59 formed on the projection main body 57.

As shown in FIG. 2, the projection main body 57 is an annular projection, is provided along the outer peripheral edge of the pressing surface 27, has a certain height as a whole, and faces the panel 1 side. Protruding. The protrusion main body 57 is arranged outside the outer peripheral surface 42 of the protrusion 39 of the packing member 33 before the female screw member 11 is fastened to the male screw member 5. Further, in a state where the female screw member 11 is fastened to the male screw member 5, as shown in FIG.
5 abuts on the panel 1 and covers the outer periphery of the packing member 33. As described above, the projection main body 57 has the restriction surface 59.

The regulating surface 59 is formed by the inner side surface of the projection main body 57 and has a diameter substantially equal to or slightly larger than the diameter of the outer peripheral surface 42 of the packing member 33 in a free state. The outer peripheral edge of the packing member 33 is in contact with the regulating surface 59 in a state where the female screw member 11 is fastened to the male screw member 5.

In order to assemble the waterproof structure 31 constructed as described above, as shown in FIG. 1, a male screw member 5 is passed through the insertion hole 3 of the panel 1, and a packing member 33 and a washer member are inserted into the male screw member 5. 35 and the female screw member 1
1 is concluded.

When the male screw member 5 is passed through the insertion hole 3 of the panel 1, one housing 13 is inserted from one side of the insertion hole 3 of the panel 1 and the other housing 1 is inserted.
5 is inserted from the other side of the insertion hole 3, and the two housings 13 are fitted into each other in the insertion hole 3. As a result, the male screw member 5
Is inserted through the insertion hole 3 of the panel 1, one housing 13 protrudes from one side of the panel 1, and the other housing 15 protrudes from the other side of the panel 1. Then, the packing member 33 is inserted through the male screw member 5.

When the packing member 33 is inserted through the male screw member 5, first, the contact hole 43 of the packing member 33 is made to match the cross-sectional shape of one of the housings 13. next,
The packing member 33 is moved toward the panel 1 so that
Is inserted into one of the housings 13. At this time, the opening edge of the contact hole 43 of the packing member 33 comes into close contact with the outer peripheral surface of the one housing 13 due to its own elasticity. In this state, as shown in FIG. 2, the packing member 33 is moved toward the panel 1 so that the distal end surface 44 of the protrusion 39 abuts on the panel 1, and the packing member 33 is inserted into the male screw member 5. . Thereafter, the washer member 35 is inserted through the male screw member 5 into which the packing member 33 has been inserted.

When the washer member 35 is inserted through the male screw member 5, first, the through hole 53 of the washer member 35 is made to coincide with the cross-sectional shape of one of the housings 13. Next, the washer member 35 is moved to the panel 1 side, and
3 so that the pressing surface 27 is in close contact with the other side surface 47 of the packing member 33. At this time, the projection 49 is disposed outside the projection 39, and the regulating surface 59 is in contact with the outer peripheral surface 42 of the projection 39. Then, the female screw member 11 is fastened to the male screw member 5.

When the female screw member 11 is fastened to the male screw member 5, the female screw member 11 is screwed into the male screw portion 17 of one housing 13. At this time, first, the female screw member 1
When the screw 1 is rotated in a predetermined direction and tightened, the female screw member 11 moves toward the panel 1 and the sliding contact surface 25 of the washer member 35 is moved.
Abut. When the female screw member 11 is further tightened in this state, the female screw member 11 moves toward the panel 1 and slides on the sliding contact surface 25 of the washer member 35 to press the washer member 35. Then, the washer member 35 moves to the panel 1 side as a whole, and the pressing surface 27 is moved to the other side surface 47 of the packing member 33.
To bring the packing member 33 into close contact with the panel 1.

At this time, the other side surface 47 of the packing member 33 is pressed by the pressing surface 27 of the washer member 35, and the protruding portion 39 protruding toward the panel 1 from the protruding portion 49 is flexed and crushed, so that the packing member 33 as a whole is Go to Therefore,
The packing member 33 extends as a whole to the center side and the outer peripheral side with respect to the protruding portion 39 by the amount of the crushing of the protruding portion 39, and is closely attached to the panel 1.

Then, since the projection 49 of the washer member 35 is disposed outside the projection 39, the outer periphery of the packing member 33 extending toward the outer periphery comes into contact with the regulating surface 59, and the packing member 33 extends toward the outer periphery. You are regulated to do so. As a result, the packing member 33 extends only toward the center with respect to the protruding portion 39 by the amount of the crushing of the protruding portion 39, and as shown in FIG. In the housed state, the diameter of the contact hole 43 is reduced as a whole, and the contact hole 43 comes into close contact with the male screw member 5.

In this state, the washer member 35 is
End face 55 abuts on panel 1 and one housing 1
3 is positioned at the predetermined insertion position. Therefore, the female screw member 11 that presses the washer member 35 is restrained from being tightened, is positioned at a predetermined fastening position of the male screw member 5, and is fastened to the male screw member 5. The washer member 35 covers the outer periphery of the packing member 33, and is in a state where the packing member 33 is held inside.

As described above, the waterproof structure 31 according to the present embodiment and the washer member 35 used for the waterproof structure 31
Then, when the female screw member 11 is fastened to the male screw member 5, the end face 55 of the projection 49 of the positioning guide means 51 is
Abut. Accordingly, the female screw member 11 can be positioned at a predetermined fastening position only by fastening the female screw member 11 to the male screw member 5, and the female screw member 11 can be positioned at the fastening position of the female screw member 11 to the male screw member 5 for each worker as in the related art. There is no variation. For this reason, the packing member 33 can be brought into close contact with the panel 1 by the predetermined fastening force of the female screw member 11, and the space between the panel 1 and the male screw member 5 can be reliably waterproofed.

Furthermore, since the female screw member 11 can be positioned at a predetermined fastening position only by fastening the female screw member 11 to the male screw member 5, the female screw member 11 can be screwed into the male screw member 5 while paying attention to the fastening state as in the related art. It is not necessary to perform the fastening operation of the member 11, the fastening operation can be easily performed, and the workability of the fastening operation can be improved.

When the female screw member 11 is fastened to the male screw member 5, the outer peripheral edge of the packing member 33 extending to the outer peripheral side comes into contact with the regulating surface 59 of the projection 49, and the packing member 33 is moved from the center side to the outer peripheral side. Can be regulated. For this reason, the packing member 33 does not extend from the center side to the outer peripheral side, but the packing member 33 extends only to the center side, so that the diameter of the contact hole 43 is reduced, and the close contact with the male screw member 5 is improved. I do. Therefore, the waterproof structure 31 of the present embodiment and the washer member 35 used for the waterproof structure 31 can more reliably waterproof the space between the panel 1 and the male screw member 5.

Further, when the female screw member 11 is fastened to the male screw member 5, the projecting portion 39 of the packing member 33 is housed in the housing portion 41, so that the packing member 3
The washer member 35 is restricted from extending from the center to the outer periphery of the washer 3.
The end face of the projection can be reliably brought into contact with the panel.

Accordingly, the female screw member 11 is placed at a predetermined fastening position.
Can be reliably positioned, and the workability of fastening the female screw member 11 to the male screw member 5 can be improved.

In the waterproof structure 31 of the present embodiment and the washer member 35 used for the waterproof structure 31, the packing member 33 is held inside the washer member 5 with the female screw member 11 fastened to the male screw member 5. Therefore, there is no portion where the packing member 33 is exposed to the outside. For this reason,
Deterioration of the packing member 33 can be suppressed, and no careless force is applied to the packing member 33, so that damage to the packing member 33 can be prevented.

In the waterproof structure 31 of the present embodiment and the washer member 35 used in the waterproof structure 31, the degree of freedom in product design can be improved.

In the above-described embodiment, the positioning / extension restricting portion 51 is formed integrally with the washer member 35. However, the washer member is formed in a plate shape as in the prior art, and the positioning / extension restricting portion is formed in the insertion hole 3 of the panel 1. May protrude integrally from the periphery.

Further, the positioning / extension restricting portion 51 may be formed as a separate component, and may be formed in an annular body having a diameter substantially equal to or slightly larger than the outer periphery of the packing member 33. In this case, after the packing member is inserted into the male screw member, the positioning / extension restricting portion is arranged so as to cover the outer periphery of the packing member, and thereafter, is fastened by the female screw member via the washer member. At this time, the positioning extension restricting portion can enter between the panel and the washer member, position the fastening position of the female screw member, and restrict extension from the center side to the outer peripheral side of the packing member.

In this embodiment, the male screw member is used in the case of a connector. However, the male screw member can be used in the case of a bolt or the like.

[0048]

As described above, according to the first aspect of the present invention, when the female screw member is fastened to the male screw member, the female screw member is positioned at a predetermined fastening position of the male screw member by the positioning / extension restricting portion to be in a fastening state. . For this reason, just by fastening the female screw member to the male screw member, the packing member can be brought into close contact with the panel by the predetermined fastening force of the female screw member, and the space between the panel and the male screw member can be reliably waterproofed.

Further, since the female screw member can be positioned at a predetermined fastening position by the positioning / extension restricting portion only by fastening the female screw member to the male screw member, the work of fastening the female screw member to the male screw member can be easily performed. And the workability of the fastening operation can be improved.

Further, extension of the packing member pressed by the pressing surface from the center side to the outer peripheral side by the positioning / extension regulating portion can be regulated. For this reason, in the state where the female screw member is fastened to the male screw member, the packing member extends only to the center side, and the adhesion between the male screw member and the packing member can be improved. Waterproofing can be ensured.

According to a second aspect of the present invention, when the female screw member is fastened to a predetermined fastening position of the male screw member, the end face of the projection contacts the panel, the washer member is positioned, and the female screw member presses the washer member. The fastening position of the member is determined. For this reason, only by fastening the female screw member to the male screw member, the female screw member can be positioned at a predetermined fastening position of the male screw member, and the packing member can be pressed by the washer member with a predetermined fastening force. The space between the member and the panel can be reliably waterproofed.

Further, since the female screw member can be positioned at the predetermined fastening position of the male screw member only by fastening the female screw member to the male screw member, the work of fastening the female screw member to the male screw member can be easily performed. In addition, the workability of the fastening operation can be improved. Further, the extension from the center side to the outer peripheral side of the packing member can be regulated by the regulating surface. For this reason, in the state where the female screw member is fastened to the male screw member, the packing member extends only to the center side, and the adhesion between the male screw member and the packing member can be improved.

According to the third aspect of the present invention, when the female screw member is fastened to the male screw member, the protruding portion of the packing member is housed in the housing portion, and the extension of the packing member from the center side to the outer peripheral side is restricted. As a result, the end surface of the protrusion of the washer member can be reliably brought into contact with the panel. For this reason, the female screw member can be reliably positioned at a predetermined fastening position to more reliably waterproof the panel and the male screw member, and the workability of fastening the female screw member to the male screw member can be improved. Can be.

According to a fourth aspect of the present invention, a pair of housings are fitted with each other to allow a connector to pass through an insertion hole of the panel, and one housing is projected from one side of the panel to form a packing member and a washer member. The female screw member can be fastened through the intermediary. Therefore, the space between one of the housings and the panel can be reliably waterproofed.

According to the fifth aspect of the invention, when the female screw member is fastened to the male screw member, the female screw member is positioned at a predetermined fastening position of the male screw member by the positioning / extension restricting portion, and is brought into the fastening state. For this reason, just by fastening the female screw member to the male screw member, the packing member can be brought into close contact with the panel by the predetermined fastening force of the female screw member, and the space between the panel and the male screw member can be reliably waterproofed.

Further, the female screw member can be positioned at a predetermined fastening position by the positioning / extension restricting portion only by fastening the female screw member to the male screw member, so that the female screw member can be fastened to the male screw member. In addition, the workability of the fastening operation can be improved.

Further, the extension from the center side to the outer peripheral side of the packing member pressed by the pressing surface by the positioning / extension regulating portion can be regulated. For this reason, in the state where the female screw member is fastened to the male screw member, the packing member extends only to the center side, and the adhesion between the male screw member and the packing member can be improved. Waterproofing can be ensured.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a waterproof structure and a washer member used in the waterproof structure according to the present invention.

FIG. 2 is a sectional view showing a packing member and a washer member in a free state before the female screw member is fastened to the male screw member of FIG. 1;

FIG. 3 is a cross-sectional view showing a conventional waterproof structure and a washer member used for the waterproof structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 3 Insertion hole 5 Male screw member 11 Female screw member 13 One housing 15 The other housing 17 Male screw part 23 Washer main body 25 Sliding contact surface 27 Pressing surface 31 Waterproof structure 33 Packing member 35 Washer member 37 Packing main body 39 Projecting part 41 Housing part 49 Projection 51 Positioning and Extension Restriction 55 End Face 57 Projection Body 59 Restriction Surface

 ──────────────────────────────────────────────────続 き Continued on the front page (71) Applicant 000002037 Shindengen Kogyo Co., Ltd. 2-2-1 Otemachi, Chiyoda-ku, Tokyo (72) Inventor Katsura Uchida 2771 Ooka Numazu-shi, Shizuoka Prefecture 72) Inventor Toru Suzuki 2-3-1 Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Keiichi Sato 1-18-1 Takada, Toshima-ku, Tokyo Origin Electric Co., Ltd. 72) Inventor Kohei Komatsu 10-13 Minami-cho, Hanno-shi, Saitama F-term within Shindengen Kogyo Co., Ltd. LL04 LL12 LL29 LL33 MM09 MM12 RR12

Claims (5)

[Claims] A female screw member is fastened to a male screw member passing through an insertion hole of a panel via a flexible packing member and a plate-shaped washer member, and the washer member is inserted through the male screw member. A washer body to be formed, a sliding contact surface formed on one surface side of the washer body and slidably pressed against a female screw member fastened to the male screw member, and a sliding contact surface formed on the other surface side of the washer body, And a pressing surface for pressing the packing member when the sliding contact surface is pressed by the female screw member, wherein the female screw member fastened to the male screw member is positioned at a predetermined fastening position. And a positioning extension restricting portion for restricting extension of the packing member pressed from the center side to the outer peripheral side by the pressing surface. 2. The waterproof structure according to claim 1, wherein the positioning and extension restricting portion has a constant height along an outer peripheral edge of a pressing surface of the washer main body and protrudes toward the panel side. And, while covering the outer periphery of the packing member, an annular projection body whose end face abuts the panel when the female screw member is fastened to a predetermined fastening position of the male screw member,
A projection formed on the inside of the projection main body and having a regulating surface against which an outer peripheral edge of the packing member comes into contact when the female screw member is fastened to the male screw member; A waterproof structure comprising: a packing main body; and a projection provided on the packing main body and projecting toward the panel side from the projection in a free state before the female screw member is fastened to the male screw member. 3. The waterproof structure according to claim 2, wherein the protruding portion is formed along an outer peripheral edge of the packing body, and the packing body has a thickness inside the protruding portion, the washer member. It is formed thinner than the protrusion height of the protrusion,
A waterproof structure comprising: a housing capable of housing the protrusion when the female screw member is fastened to the male screw member. 4. The waterproof structure according to claim 1, wherein the male screw member is formed on a pair of mutually fitted housings and an outer peripheral surface of one of the housings. A waterproof structure comprising a connector provided with a male screw portion. 5. A waterproof structure in which a female screw member is fastened to a male screw member penetrating an insertion hole of a panel via a flexible packing member, and is provided between the packing member and the female screw member. A plate-like washer member interposed therebetween, the washer body being inserted into the male screw member, and a female screw member formed on one side of the washer body and slidably pressed against the female screw member fastened to the male screw member. A sliding surface, a pressing surface formed on the other side of the washer body, and pressing the packing member when the sliding surface is pressed by the female screw member, and the female screw member fastened to the male screw member. A washer member, comprising: a positioning and extension restricting portion that is positioned at a predetermined fastening position and that regulates extension of the packing member pressed by the pressing surface from the center side to the outer peripheral side.