JP6630326B2 - Waterproof parts - Google Patents

Description

  The present invention relates to a waterproof component to be mounted in a mounting hole in a wall.

  The storage area for the control devices and the like disposed in the engine room of the automobile needs to be a waterproof area. For this reason, when an electric wire is passed through a mounting hole of a vehicle body panel that separates a water-receiving region and a waterproof region, a waterproof component is attached to the mounting hole of the vehicle body panel to prevent water from entering the waterproof region. Various such waterproof parts have been conventionally proposed (for example, see Patent Document 1).

JP 2011-129391 A

  By the way, as shown in FIGS. 25 to 27, the waterproof component 100 according to the reference example has a housing main body 101 mounted in the mounting hole 61 of the wall 60, a mat seal 110 through which the electric wire W passes, and a mat seal 110. The housing includes a mat seal holder 120 for holding 110 in the housing main body 101 and an elastic ring (O-ring) 130 fixed to the housing main body 101.

  The housing main body 101 has a mounting hole insertion portion 102 inserted into the mounting hole 61 of the wall 60. A pair of locking claws 103 and a pair of cover locking portions 104 are provided on the insertion tip side of the mounting hole insertion portion 102. The mat seal holder 120 is provided with a pair of locking claws 121. In the mat seal holder 120, the mat seal 110 is held by the housing main body 101 by the pair of locking claws 121 being locked by the pair of cover locking portions 104.

  When the housing main body 101 is inserted into the mounting hole 61 of the wall portion 60, the pair of locking claws 103 is elastically deformed, and the housing main body 101 is mounted in the mounting hole 61.

  However, the pair of locking claws 103 are provided at the distal end side of the mounting hole insertion portion 102 in a cantilevered manner. Therefore, if an external force F20 (shown in FIG. 27B) exceeding the strength of the locking claw 103 itself is applied in a direction different from the elastic deformation in a direction in which the locking claw 103 is inserted into the mounting hole 61, the locking claw 103 may be damaged. There was a problem that there was.

  Then, this invention is made in order to solve the said subject, and an object of this invention is to provide the locking claw waterproofing component which can prevent the damage of a locking claw as much as possible.

  The present invention relates to a waterproof component to be mounted in a mounting hole of a wall portion penetrating an electric wire, wherein the mounting hole insertion portion, which is inserted into the mounting hole and has a mat seal accommodation chamber having a bottom wall formed therein, An abutting portion that abuts on a peripheral edge of the hole; and a locking claw that is provided to be elastically deformable on an insertion tip side of the mounting hole insertion portion and that locks on a peripheral edge of the mounting hole on a side opposite to the abutting portion. A housing body having a cover locking portion provided on the insertion tip side of the mounting hole insertion portion, a mat seal housed in the mat seal housing chamber, and having a wire press-fitting hole through which the wire passes, A mat seal cover that is locked to the cover locking portion and holds the mat seal between the bottom wall and the mat seal in the mat seal accommodating chamber. Into the mounting hole with the insertion part An elastic support wall that is inserted and elastically deformable, and a claw formed at a tip of the elastic support wall and protruding outward from an outer surface of the elastic support wall, wherein the mat seal cover includes the elastic support wall. On the other hand, the waterproof component is characterized in that it has a locking claw protection projection for restricting displacement of the claw portion in a direction different from elastic deformation in a direction of entering the mounting hole.

  According to the present invention, even if an external force exceeding the strength of the locking claw is applied to the locking claw, the locking claw protection protrusion prevents the locking claw from being deformed, so that damage to the locking claw can be prevented as much as possible.

FIG. 2 shows the first embodiment of the present invention, and is an exploded perspective view of a waterproof component. FIG. 2 shows the first embodiment of the present invention, and is a perspective view of a wall and a waterproof component. FIG. 2 shows the first embodiment of the present invention, and is a perspective view of a waterproof component. 1 shows a first embodiment of the present invention and is a side view of a waterproof component. FIG. 3A is a side view illustrating a process of mounting a waterproof component on a wall, and FIG. 3B is a side view illustrating a state where the waterproof component is mounted on a wall. It is a principal part side view showing a 1st embodiment of the present invention and showing a state where a waterproofing part was attached to a wall part. It is a perspective view of a wall part and a housing main part, showing a second embodiment of the present invention. It is a principal part perspective view of a claw part of a locking claw showing a second embodiment of the present invention. 1A and 1B show a first embodiment, in which FIG. 2A is a plan view of a claw portion, FIG. 2B is a side view of the claw portion, and FIG. 2A and 2B show a second embodiment, in which (a) is a plan view of a claw portion, (b) is a side view of a claw portion, and (c) is a front view. (A) is a perspective view of the locking surface side of the claw portion of the first embodiment, and (b) is a perspective view of the locking surface side of the claw portion of the second embodiment. (A) is a side view for explaining the shear force acting on the claw portion of the first embodiment, and (b) is a side view for explaining the shear force acting on the claw portion of the second embodiment. It is a perspective view of a waterproof part which shows the 1st comparative example of the present invention. FIG. 4 is a perspective view of a housing main body, showing a first comparative example of the present invention. FIG. 4 is a perspective view of a mat seal showing a first comparative example of the present invention. FIG. 4 shows a first comparative example of the present invention, in which (a) is a perspective view of a mat seal cover, and (b) is a perspective view of a mat seal cover on the opposite side to (a). FIG. 6 is an exploded perspective view of a waterproof member, showing a first comparative example of the present invention. FIG. 4 is a cross-sectional view of a waterproof member, showing a first comparative example of the present invention. FIG. 7A is a perspective view of a housing main body, and FIG. 7B is a perspective view of the housing main body viewed from the opposite side to FIG. FIG. 9 shows a second comparative example of the present invention, in which (a) is a perspective view of a mat seal, (b) is a perspective view of a mat seal viewed from the side opposite to (a), and (c) is A- of (a). FIG. 3 is a sectional view taken along line A. FIG. 7 shows a second comparative example of the present invention, in which (a) is a perspective view of a mat seal cover, and (b) is a perspective view of the mat seal cover as viewed from the side opposite to (a). FIG. 6 shows a second comparative example of the present invention, and (a) to (d) are perspective views of each assembly process of a waterproof component. FIG. 22 shows a second comparative example of the present invention, and is a cross-sectional view of FIG. FIG. 7 shows a second comparative example of the present invention, in which (a) is a view of the waterproof component as viewed from the mat seal cover side, and (b) is a cross-sectional view taken along the line BB of (a). It is a disassembled perspective view of a waterproof component, showing a reference example of the present invention. FIG. 5A is a perspective view of a reference example of the present invention, in which FIG. 7A is a perspective view before a waterproof component is attached to a mounting hole, and FIG. FIG. 3A is a perspective view of a waterproof component, and FIG. 2B is a diagram illustrating a direction in which an external force F20 acts, as viewed from the mat seal cover side of the waterproof component.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(1st Embodiment)
1 to 6 show a first embodiment of the present invention. A wall portion 60 such as a vehicle body panel partitions a water-receiving area and a waterproof area. A cylindrical mounting hole 61 is formed in the wall 60. The waterproof component 1A mounted on the outer peripheral side of the electric wire W is mounted in the mounting hole 61.

  The waterproof component 1A includes a housing body 2, a mat seal 30, a mat seal cover 40, an elastic ring 50, and a wire cover 51.

  The housing body 2 includes a mounting hole insertion portion 3, a base flange portion 4, which is a contact surface fixed to a rear end of the mounting hole insertion portion 3, and a pair of protrusions protruding from a front end side of the mounting hole insertion portion 3. And a pair of cover locking portions 20.

  The mounting hole insertion portion 3 has a cylindrical shape, and has an outer diameter smaller than that of the mounting hole 61. A circumferential groove 5 is formed at the tip of the mounting hole insertion portion 3. The elastic ring 50 is mounted on the circumferential groove 5. A mat seal accommodation room 8 having a bottom wall 7 is provided inside the mounting hole insertion portion 3. An electric wire insertion hole 7 a is formed in the bottom wall 7.

  The pair of locking claws 10 and the pair of cover locking portions 20 are respectively disposed at 180 ° facing positions. That is, the locking claws 10 and the cover locking portions 20 are alternately arranged in the circumferential direction with a gap therebetween.

  Each locking claw 10 has an elastic support wall 11 protruding from the mounting hole insertion portion 3 and a claw portion 12 protruding outward from the tip of the elastic support wall 11 in the circumferential direction. The outer peripheral surface of the elastic support wall 11 is formed not as an arc surface but as a flat surface. As a result, the elastic support walls 11 are formed in a form that is easily elastically deformed inward, that is, directions in which the elastic support walls 11 approach each other. The elastic support wall 11 has a position regulating hole 13 penetrating between the inner surface and the outer surface.

  The tip side in the protruding direction of the claw portion 12 has an arc shape. The diameter of the circular arc locus on the tip side of the claw portion 12 is formed larger than the diameter of the mounting hole 61.

  The outer peripheral surface of each cover locking portion 20 is formed in an arc surface flush with the outer peripheral surface of the mounting hole insertion portion 3. The cover locking portion 20 is formed with a locking hole 21 penetrating between the inner surface and the outer surface.

  The mat seal 30 is formed of an elastically deformable material (for example, a rubber material). The mat seal 30 has a substantially disk shape. The mat seal 30 has ten wire press-fit holes 31 formed at positions where an arbitrary virtual line passing through the center thereof is line-symmetric. The mat seal 30 is formed such that the front side and the back side have the same shape. The electric wires W pass through the respective electric wire press-fit holes 31 in a press-fit state. On the outer peripheral surface of the mat seal 30, two sealing projections 32 are provided over the entire circumference. The mat seal 30 is pressed into the mat seal accommodating chamber 8 in a state where the sealing projection 32 is compressed and deformed.

  The mat seal cover 40 includes a square mat pressing portion 41, a pair of locking claw protecting portions 42 erected from the mat pressing portion 41, and a pair of locking wall portions 43 erected from the mat pressing portion 41. And

  The mat holding portion 41 has ten electric wire insertion holes 41a.

  The pair of locking claw protection portions 42 and the pair of locking wall portions 43 are provided at 180 ° opposing positions, similarly to the pair of locking claws 10 and the pair of cover locking portions 20 of the housing body 2. . In other words, the pair of locking claw protection portions 42 are disposed at positions corresponding to the pair of locking claws 10, and the pair of locking wall portions 43 are disposed at positions corresponding to the pair of cover locking portions 20.

  Each locking claw protection portion 42 has an excessive displacement suppression wall 44 and a locking claw protection projection 45 protruding outward from the excessive displacement suppression wall 44. The excessive displacement suppressing wall 44 is arranged on the inner peripheral side of the elastic support wall 11 of the housing main body 2 in a state of being attached to the housing main body 2. The elastic support wall 11 of the housing body 2 restricts the excessive displacement of the elastic deformation in the direction in which the claw portion 12 enters the mounting hole 61 by the excessive displacement suppressing wall 44. The locking claw protection protrusion 45 is inserted into the locking hole 21 of the cover locking portion 20 in a state of being attached to the housing body 2. The insertion distal end surface of the locking claw protection projection 45 projects outside the locking hole 21 by a dimension d (shown in FIG. 6).

  Each locking wall 43 has a supporting side wall 46 and an elastic locking claw 47 protruding outward from the supporting side wall 46. The mat seal cover 40 is mounted on the housing main body 2 by locking the elastic locking claws 47 into the locking holes 21 of the cover locking portion 20 of the housing main body 2. The mat seal 30 is held in the mat seal storage chamber 8 by being sandwiched between the mat seal cover 40 and the bottom wall 7.

  The elastic ring 50 has a ring shape. The elastic ring 50 is mounted in the circumferential groove 5 of the mounting hole insertion part 3 of the housing body 2.

  The electric wire cover 51 is attached to the base flange 4 of the housing body 2. The electric wire cover 51 covers the outer periphery of the electric wire W guided to the housing body 2. One end of a corrugated tube 52 (shown in FIG. 2) that covers the outer periphery of the electric wire W is attached to the electric wire cover 51.

  The general assembly of the waterproof component 1A (the assembly of the electric wire cover 51 and the corrugated tube 52 is omitted) is performed as follows. The mat seal 30 is pressed into the mat seal storage chamber 8 of the housing body 2. Next, the mat seal cover 40 is put on the mat seal 30, and the pair of elastic locking claws 47 of the mat seal cover 40 are locked in the pair of locking holes 21 of the housing body 2. Next, the electric wires W are passed through the electric wire insertion holes 7a, the electric wire insertion holes 31 of the mat seal 30, and the electric wire insertion holes 41a of the mat seal cover 40 from the base flange portion 4 side of the housing body 2. Thus, the general assembly is completed.

  Next, a procedure for mounting the waterproof component 1A in the mounting hole 61 of the wall 60 will be described. As shown in FIG. 5A, the waterproof component 1 </ b> A is inserted into the mounting hole 61 of the wall portion 60 with the claw portions 12 of the pair of locking claws 10 as the tips from the wet area. Then, first, the pair of claw portions 12 interfere with the peripheral wall portion 60 of the mounting hole 61. When the waterproof component 1A is further inserted from this state, the pair of claw portions 12 receive a reaction force from the wall portion 60, and the pair of elastic support walls 11 cause the respective claw portions 12 to enter the mounting holes 61 by the reaction force. The pair of claws 12 are inserted into the mounting holes 61 by elastic deformation. When the pair of claws 12 pass through the mounting hole 61, the pair of elastic support walls 11 undergoes elastic return deformation, and the pair of claws 12 are locked on the periphery of the mounting hole 61. At the position where the pair of claw portions 12 pass through the mounting hole 61, the base flange portion 4 of the housing body 2 is at a position where the base flange portion 4 is in close contact with the peripheral edge of the mounting hole 61 (see FIG.

  That is, the waterproof component 1 </ b> A is sandwiched between the base flange portion 4 abutting on the peripheral edge of one side of the wall portion 60 of the mounting hole 61 and the peripheral edge of the other surface (opposite surface) of the wall portion 60 of the mounting hole 61. Is mounted in the mounting hole 61. The space between the inner wall surface of the mounting hole 61 and the outer peripheral surface of the mounting hole insertion portion 3 of the waterproof component 1A is sealed by the compressive force of the elastic ring 50. The space between each wire W and the mat seal 30 is sealed by press-fitting the wire W into the wire press-fit hole 31.

  The waterproof component 1A can be attached by one operation (one action) of being inserted into the attachment hole 61 of the wall 60.

  As described above, the waterproof component 1 </ b> A is inserted into the mounting hole 61 of the wall portion 60, and the mounting hole insertion portion 3 in which the mat seal accommodation chamber 8 having the bottom wall 7 is formed, and the periphery of the mounting hole 61. A base flange portion 4 which is an abutting portion which is in contact with the mounting hole insertion portion 3 is provided on the insertion distal end side so as to be elastically deformable, and is engaged with a peripheral edge of the mounting hole 61 opposite to the base flange portion 4. A housing main body 2 having a pawl 10 and a cover locking portion 20 provided on the insertion distal end side of the mounting hole insertion portion 3, an electric wire press-in hole 31 accommodated in the mat seal accommodating chamber 8, and through which the electric wire W passes. And a mat seal cover 40 locked by the cover locking portion 20 and holding the mat seal 30 between the bottom wall 7 and the mat seal 30 in the mat seal storage chamber 8. The locking claw 10 has a mounting hole A mat that has an elastic support wall 11 that is inserted into the mounting hole 61 together with the entry portion 3 and that can be elastically deformed, and a claw portion 12 that is formed at the tip of the elastic support wall 11 and protrudes outside the outer surface of the elastic support wall 11. The seal cover 40 has a locking claw protection projection 45 for restricting displacement of the elastic support wall 11 in a direction different from the elastic deformation of the claw portion 12 into the mounting hole 61.

  Therefore, as shown in FIG. 4, when an external force F10 in a direction different from the elastic deformation in a direction in which the claw portion 12 enters the mounting hole 61 acts on the locking claw 10, the external force F10 reduces the strength of the locking claw 10 itself. Even if the external force exceeds, the locking claw protection projection 45 prevents the deformation of the locking claw 10, so that the damage of the locking claw 10 can be prevented as much as possible.

  The elastic support wall 11 has a position regulating hole 13, and the locking claw protection projection 45 is inserted into the position regulating hole 13. Therefore, the external force (F10) in both the left and right directions can be blocked by the single locking claw protection projection 45 and the position regulating hole 13.

  As shown in detail in FIG. 6, the locking claw protection protrusion 45 is disposed in the mounting hole 61 so as to protrude from the outer surface of the elastic support wall 11. Therefore, in the waterproof component 1A, the gap (D-d) formed in the mounting hole 61 by the protrusion amount d of the locking claw protection projection 45 protruding from the elastic support wall 11 is reduced, so that the horizontal direction of the waterproof component 1A is reduced. Play is suppressed, and breakage of the locking claw 10 is also suppressed.

The locking claw protection part 42 has an excessive displacement suppression wall 44. Accordingly, excessive elastic displacement of the elastic support wall 11 can be prevented when the claw portion 12 is elastically deformed in the direction of entering the mounting hole 61.
(2nd Embodiment)
7, 8, 10, 11 (b), 12 (c), and (d) show a second embodiment of the present invention. The waterproof component 1B of the second embodiment differs from the first embodiment in the configuration of the claw portion 12 of the locking claw 10.

  First, the configuration of the claw portion 12 of the first embodiment will be described with reference to FIG. As shown in FIG. 9 (b), the claw portion 12 of the first embodiment has a locking surface 14 which is a side that comes into contact with the peripheral edge of the mounting hole 61, and has an inverted tapered surface (from the inner peripheral side) when viewed from the side. The surface 14b is inclined toward the outer peripheral side in the detaching direction of the mounting hole 61). Therefore, as shown in FIG. 9C, the claw portion 12 has a distal end shape that extends in the circumferential direction of the locking surface 14 and has a curved shape when viewed from the outer peripheral side. This is because the claw portion 12 is formed in a cylindrical locus as one portion of the housing main body 2 by die molding.

  In the first embodiment, even when the claw 12 is bent and deformed when the waterproof component 1A is detached from the mounting hole 61, the locking surface 14 of the claw 12 is formed in a forward tapered shape (from the inner peripheral side to the outer peripheral side). (A shape inclined in the mounting direction of the mounting hole 61). This was intended to increase the holding power of the waterproof component 1A. However, as described above, since the tip shape of the locking surface 14 of the claw portion 12 has a curved shape, the claw portion 12 is inclined when the waterproof component 1A is detached from the mounting hole 61 (FIG. 9C). ) Arrow direction). As shown in FIG. 11A, when the claw portion 12 is inclined, the contact surface S <b> 1 of the locking surface 14 of the claw portion 12 with the wall portion 60 (the hatched area in FIG. 11A) is reduced, and the waterproofing is performed. The holding power of the component 1A decreases.

  On the other hand, as shown in FIG. 10B, the claw portion 12 according to the second embodiment has a locking surface 14 that is in contact with the peripheral edge of the mounting hole 61 and has a distal end portion as viewed from the side. Is formed on a straight surface (a surface that is not inclined in the mounting direction from the mounting hole in the mounting direction from the inner circumferential side to the outer circumferential side) 14a, and a portion inside the distal end portion is formed on the reverse tapered surface 14b. As a result, as shown in FIG. 10C, the claw portion 12 has a straight distal end shape extending in the circumferential direction of the locking surface 14 as viewed from the outer peripheral side.

  In the second embodiment, even when the claw portion 12 is bent and deformed when the waterproof component 1B is detached from the mounting hole 61, the entire surface of the locking surface 14 of the claw portion 12 is formed because the claw portion 12 has the reverse tapered surface 14b in part. It does not have a forward tapered shape. Since the tip of the locking surface 14 of the claw portion 12 is straight, the claw portion 12 does not tilt when the waterproof component 1B is detached from the mounting hole 61. Therefore, as shown in FIG. 11B, the contact surface S <b> 2 (the hatched area in FIG. 11B) of the locking surface 14 of the claw portion 12 with the wall portion 60 is the entire area in the circumferential direction of the claw portion 12, The holding power of the waterproof component 1B is improved.

  Further, as shown in FIG. 12A, the claw portion 12 of the first embodiment has an inclined surface 15 on the insertion side into the mounting hole 61 and a locking surface 14 on the side that comes into contact with the peripheral edge of the mounting hole 61. Are connected to each other, and an acute angle portion b is formed at the front end portion. Accordingly, when the waterproof component 1A is detached from the mounting hole 61, the claw portion 12 bends and deforms, so that a shear force acts on the position of the acute angle portion b as shown in FIG. Therefore, the shearing area is small, and the holding force of the waterproof component 1A is low.

  On the other hand, as shown in FIG. 12B, the claw portion 12 of the second embodiment has an inclined surface 15 on the insertion side into the mounting hole 61 and a locking surface that is a side that comes into contact with the peripheral edge of the mounting hole 61. 14 are connected by a cut surface 16. As a result, no acute angle portion is formed at the tip of the claw portion 12. Further, the angle α of the inclined surface 15 is formed at an obtuse angle as compared with the first embodiment. Accordingly, when the waterproof component 1B is detached from the mounting hole 61, the claw portion 12 bends and deforms, so that a shearing force acts as shown in FIG. Therefore, the shearing area is large, and the holding force of the waterproof component 1B is improved.

(First comparative example)
13 to 19 show a first comparative example. The prevention component 1C of the first comparative example is different from that of the first embodiment in that each of the elastic support walls 11 of the housing body 2 is not provided with a position regulating hole, and the mat seal cover 40 has The locking wall 43 is not provided.

  The prevention component 1C of the first comparative example has the following parts added as compared with those of the first embodiment. That is, the positioning hole 33 is formed in the mat seal 30 around the wire insertion hole 31. A positioning rib 7b is formed on the bottom wall 7 of the housing body 2 together with an electric wire insertion hole 7a. On the mat seal cover 40, positioning ribs 41b are formed together with the electric wire insertion holes 41a. Further, the number of penetrating electric wires W is seven.

  The positioning ribs 7b and 41b of the housing body 2 and the mat seal cover 40 are inserted into the positioning holes 33 of the mat seal 30 together. Therefore, since the position of each electric wire press-fit hole 31 of the mat seal 30 is positioned by the housing main body 2 and the mat seal cover 40, the displacement of the mat seal 30 is suppressed, and the generated mat seal 30 securely seals the electric wire W. .

  Other configurations are substantially the same as those of the first embodiment, and therefore, the same components are denoted by the same reference numerals and description thereof will be omitted.

(Second comparative example)
20 to 24 show a second comparative example. The prevention component 1D of the second comparative example is different from that of the first embodiment in that each of the elastic support walls 11 of the housing body 2 is not provided with a position regulating hole, and The locking wall 43 is not provided. Also, the number of penetrating electric wires W is two.

  The prevention component 1D of the second comparative example is different from the first embodiment in the following configuration. That is, the protrusions 34 are provided in the mat seal 30 at positions where the respective wire press-fit holes 31 are formed. Each electric wire press-fit hole 31 is formed so as to penetrate the convex portion 34. An electric wire insertion hole 7 a is formed in the bottom wall 7 of the housing main body 2, and the size of the electric wire insertion hole 7 a is formed so as to insert the projection 34. Each projection of the mat seal 30 is inserted into an electric wire insertion hole 7 a in the bottom wall 7 of the housing body 2.

  Therefore, since the electric wire W does not directly contact the bottom wall 7 of the housing body 2, damage to the electric wire W can be prevented.

  Other configurations are substantially the same as those of the first embodiment, and therefore, the same components are denoted by the same reference numerals and description thereof will be omitted.

1A, 1B Waterproof parts 2 Housing body 3 Mounting hole insertion part 4 Base flange part (contact surface)
7 Bottom wall 8 Mat seal storage chamber 10 Locking claw 11 Elastic support wall 12 Claw portion 13 Position control hole 14 Locking surface 14a Straight surface 14b Reverse taper surface 15 Inclined surface 16 Cut surface 20 Cover locking portion 30 Mat seal 40 Mat seal cover 45 locking claw protection projection 60 wall 61 mounting hole

Claims (5)

In a waterproof component attached to a mounting hole of a wall portion through which an electric wire passes,
A mounting hole insertion portion inserted into the mounting hole and having a mat seal storage chamber having a bottom wall formed therein, a contact portion abutting on a peripheral edge of the mounting hole, and an insertion tip side of the mounting hole insertion portion. A locking claw that is provided to be elastically deformable and locks on a peripheral edge of the mounting hole opposite to the abutting portion; and a cover locking portion provided on the insertion tip side of the mounting hole insertion portion. A housing body,
A mat seal housed in the mat seal housing chamber and having an electric wire press-in hole through which the electric wire passes;
A mat seal cover locked by the cover locking portion, sandwiching the mat seal between the bottom wall and the mat seal, and holding the mat seal in the mat seal storage chamber;
The locking claw is inserted into the mounting hole together with the mounting hole insertion portion, and is formed at an end of the elastic support wall that is elastically deformable, and a claw that protrudes outward from an outer surface of the elastic support wall. Part,
A waterproof component, wherein the mat seal cover has a locking claw protection projection for restricting displacement of the elastic support wall in a direction different from elastic deformation in a direction in which the claw portion enters the mounting hole. . The waterproof component according to claim 1,
The elastic support wall has a position regulating hole,
The waterproof component, wherein the locking claw protection projection is inserted into the position regulating hole. The waterproof component according to claim 2,
The waterproof component according to claim 1, wherein the locking claw protecting projection is disposed in the mounting hole so as to protrude from an outer surface of the elastic support wall. A waterproof component according to any one of claims 1 to 3,
The claw portion has an arc shape, and a locking surface on a side abutting on a peripheral edge of the mounting hole is a straight surface along a surface of the wall portion at a tip portion viewed from the side, and viewed from the side. A waterproof part characterized in that an inner part from a tip part of (1) is an inverted tapered surface. The waterproof component according to claim 4 , wherein
The waterproof part according to claim 1, wherein the claw portion has a cut surface that connects an inclined surface on the insertion side into the mounting hole and the locking surface that is in contact with a peripheral edge of the mounting hole.

Images