JP2014189025A - Hole plug for drain hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To seal a drain hole with higher airtightness, and securely prevent penetration of water even when a car is washed or is water-damaged.SOLUTION: An insertion hole 21a is penetrated in a center of a disc part 21 having a diameter a little smaller than a diameter of a drain hole 1, and three discharge holes 21b are penetrated in a periphery of the insertion hole 21a. A peripheral edge part 22 having a groove part 22a of a V shape in cross section is integrally formed so that an inner side of an open end of the groove part 22a is continued to a peripheral edge of the disc part 21. A seal lip part 23 is integrally formed on an outer circumferential upper end of the open end of the groove part 22a of the peripheral edge part 22. When a plug main body 2 is inserted in the drain hole 1 from a vehicle inner side with the open end of the groove part 22a of the peripheral edge part 22 on the vehicle inner side, the plug main body 2 is easily inserted in the drain hole 1 by deforming an outer side of the peripheral edge part 22, and the seal lip part 23 is tightly attached to an inner surface of a panel P on a peripheral edge of the drain hole 1. A pin part 32 of a valve 3 is inserted in the insertion hole 21a of the plug main body 2 from a vehicle outer side while the discharge hole 21b is tightly closed by adhering a base part 31 of the valve 3 to an inner circumference surface of the peripheral edge part 22 of the plug main body 2.

Description

  The present invention provides a drain hole hole that is mounted so as to close a drain hole formed in a panel of a vehicle, prevents dust from entering the outside of the vehicle, and allows the water accumulated in the vehicle to be discharged outside the vehicle. It is about plugs.

  Conventionally, a vehicle has been provided with a drainage hole for discharging water that has entered the outside of the vehicle, and the drainage hole is provided so that water from the outside of the vehicle does not enter through the drainage hole. Closing is done.

  For example, FIG. 3 to FIG. 5 are examples in which a drain hole is provided in the door. As shown in these drawings, the door 52 of the vehicle 51 has a hollow structure formed by joining a door outer panel and a door inner panel 54. Therefore, a drain hole 56 is formed in the lower end portion of the inner panel 54 in order to discharge the water that has entered the interior of the door 52 from the protruding portion of the window glass 55 or the like.

  Then, a base portion 57 having an outer shape larger than the water drain hole 56 and a rectangular communication hole 58 smaller than the water drain hole 56 are formed at substantially the center of the base portion 57, and the communication hole 58 relative to the upper surface of the base portion 57 is formed. A pair of hooking claws 59 that are formed to rise from the edge portion that fits into the drain hole 56 and hooks to the inner surface of the door inner panel 54, and are provided at the edge portion of the communication hole 58 on the bottom surface of the base portion 57. A grommet 61 having a flap 60 made of stainless steel foil or the like that elastically displaces the other end only in one direction from the inside of the door 52 toward the outside of the door 52 is attached to the drain hole 56. It has been proposed (see Patent Document 1).

  At this time, on one end side of the flap 60, a plurality of fixing holes 62 and a plurality of pin portions 63 that protrude integrally with the edge portions of the communication holes 58 on the bottom surface of the base portion 57 and are inserted into the fixing holes 62. Are provided, and one end of the flap 60 is firmly attached by thermally deforming and crushing the tip of each pin portion 63.

  The grommet 61 having such a configuration is fitted into the drain hole 56 and the drain hole 56 is covered and closed by the base portion 17, so that the flap 60 does not move even when the inside of the door 52 becomes negative pressure during traveling. If the communication hole 58 is adsorbed by the communication hole 58 of the base portion 57 and the communication hole 58 is reliably closed to prevent dust from entering from the outside of the vehicle. The other end of the flap 60 is pushed down by the weight of the water accumulated inside, the communication hole 58 is opened, and the water inside the door 52 flows out of the vehicle.

JP-A-11-91633 (paragraphs 0002, 0014 to 0016 and FIGS. 1, 4 and others)

  However, the above-mentioned Patent Document 1 has a configuration in which the grommet 61 is hooked on the inner surface of the door inner panel 54 by a pair of hooking claws 59. When the grommet 61 is mounted, the base portion 57, the door inner panel 54, The contact surface of the door is not completely in contact with each other, and there is a slight gap. Therefore, even when the water enters the inside and travels on a flooded road, there is a problem that the water flows backward from the gap between the base portion 57 and the door inner panel 54 and enters the inside.

  Moreover, there is a possibility that the flap 60 may open due to the momentum of water, and it is also conceivable that water enters the inside when the flap 60 opens.

  An object of the present invention is to make it possible to seal a water draining hole with higher airtightness, and to reliably prevent water from entering even when a car is washed or submerged.

  In order to achieve the above-mentioned object, the hole plug structure for drain holes of the present invention is attached to the drain hole formed in the panel of the vehicle, prevents dust from entering from the outside of the vehicle, and accumulates in the interior of the vehicle. In the hole plug structure for a drain hole that allows water to be discharged outside the vehicle, the drain hole is circular, the hole plug includes a plug body and a valve, and the plug body is slightly larger than the drain hole. The groove portion having a disk portion having a small diameter, an insertion hole formed in the center of the disk portion, at least one discharge hole formed in the vicinity of the insertion hole, and a groove portion having a V-shaped cross section A peripheral portion having an outermost diameter larger than the drain hole integrally formed so that an inner side of the open end is continuous with a peripheral edge of the disk portion and an outer side of the open end is deformable inwardly, and an outer peripheral upper end of the peripheral portion The peripheral edge of the drain hole formed integrally with A seal lip portion that is in intimate contact with the inner surface of the panel, and the valve has a diameter larger than the disk portion and smaller than the outermost diameter of the peripheral edge portion, and is in a dish-like shape close to the inner peripheral surface of the peripheral edge portion. A flexible base, and a pin portion integrally formed at the center of the base and inserted into the insertion hole from the outside of the vehicle, the open end of the groove portion of the peripheral portion being the vehicle inside, and the plug body is The drainage hole is inserted from the inside of the vehicle (claim 1).

  According to the first aspect of the present invention, in the plug body, the insertion hole is formed in the center of the disk portion having a diameter slightly smaller than the diameter of the drain hole, and at least one discharge is provided in the vicinity of the insertion hole. A peripheral portion having a groove portion with a V-shaped cross section is integrally formed so that the inner side of the open end of the groove portion is continuous with the peripheral portion of the disk portion, and is sealed at the outer peripheral upper end of the open end of the groove portion of the peripheral portion The lip part is integrally formed, and when the plug body is inserted into the drain hole from the inside with the open end of the groove part at the peripheral part inside, the outside of the peripheral part having a diameter larger than the diameter of the drain hole is deformed. Thus, the plug body can be easily inserted into the drain hole, the seal lip is brought into close contact with the inner surface of the panel around the drain hole, and the flexible base of the valve is deformed to the inner peripheral surface of the plug body. The valve pin is inserted into the insertion hole of the plug body while the exhaust hole is sealed and the discharge hole is sealed. It is inserted from the side.

  Therefore, the seal lip is in close contact with the inner surface of the panel at the periphery of the drain hole, and the outer periphery of the peripheral part of the plug body is in close contact with the inner periphery of the drain hole, so that there is a gap between the plug body and the panel. Since the discharge hole is closed while the plate-shaped base of the valve is in close contact with the disk part of the plug body, the drain hole can be sealed more airtightly, Even during submergence, water can be reliably prevented from entering the vehicle.

  Further, since the peripheral portion of the plug body has a V-shaped groove portion that is open to the inside of the vehicle, the accumulation of dust in the groove portion of the peripheral portion prevents the discharge hole from being blocked by dust. In addition, by removing the valve to the outside of the vehicle, the water in the vehicle can be reliably discharged out of the vehicle through the discharge hole.

It is a cutting | disconnection front view of one Embodiment of the hole plug structure for drain holes which concerns on this invention. It is a perspective view in the decomposition state of one embodiment. 1 is an external side view of a general vehicle. It is sectional drawing of a prior art example. It is a perspective view of a prior art example.

  Next, an embodiment of a drain plug hole plug structure according to the present invention will be described in detail with reference to FIGS.

  As shown in FIGS. 1 and 2, a circular drain hole 1 is formed through a panel P such as a door inner panel or a floor panel of a vehicle (for example, see FIG. 3), and a plug is inserted into the drain hole 1. A hole plug 4 comprising a main body 2 and a valve 3 is attached with good airtightness.

  The plug body 2 includes a disk portion 21, a peripheral edge portion 22, and a seal lip portion 23. The plug body 2 is integrally formed by molding a soft rubber material such as EPDM, and the disk portion 21 has a drain hole 1. The disc portion 21 has a diameter slightly smaller than the diameter, and an inverted convex insertion hole 21a through which a later-described valve pin portion is inserted is formed in the center of the disc portion 21 and the insertion hole 21a of the disc portion 21 is inserted. Three drain holes 21b for draining water are provided in the periphery of the.

  The peripheral portion 22 has an outermost diameter that is larger than the diameter of the drain hole 1, and has a groove portion 22 a having a V-shaped cross section, and the inner side of the open end of the groove portion 22 a is continuous with the periphery of the disk portion 21. A bulging portion 22b bulging slightly outward is formed at a position slightly below the outer peripheral surface of the peripheral edge portion 22, and the outside of the open end of the groove portion 22a is directed inwardly toward the center. Deformable. When the plug body 2 is inserted into the drain hole 1 from the inside of the vehicle, the outside of the peripheral portion 22 is deformed and can be easily inserted, and after the insertion, the bulging portion 22b is inserted into the drain hole 1. The plug body 2 is prevented from being pulled out by engaging with the lower surface of the peripheral panel P, and the outer periphery of the peripheral edge portion 22 bent inward is restored to the original state so as to return to the inner periphery of the drain hole 1. It adheres and the airtightness between the plug main body 2 and the panel P is maintained.

  Furthermore, the seal ship part 23 is integrally formed at the outer peripheral upper end part of the peripheral part 22 and has a cross-sectional C shape. When the plug body 2 is inserted into the drain hole 1, as shown in FIG. The lower edge of the seal ship portion 23 is brought into close contact with the inner surface of the panel P at the peripheral edge of the drain hole 1, and the airtightness between the plug body 2 and the panel P is further enhanced.

  Further, the valve 3 is made of a soft rubber material such as EPDM, for example, and is a circular dish-like flexible member having a diameter larger than the disk portion 21 that is in close contact with the inner peripheral surface of the peripheral portion 22 and smaller than the outermost diameter of the peripheral portion 22. The base 31 of the valve 3 is deformed, and the base 31 of the valve 3 is deformed. The base 31 is formed integrally with the center of the base 31 and is inserted into the insertion hole 21a. While closely contacting the inner peripheral surface of the peripheral edge portion 22 of the plug main body 2, the pin portion 31 of the valve 3 is placed in the insertion hole 21 a of the plug main body 2 while the discharge hole 21 b is sealed by the valve 3 as shown in FIG. It is inserted from the outside.

  When the plug body 2 is inserted into the drain hole 1 and attached, the open end of the groove 22a of the peripheral edge portion 22 of the plug body 2 is set to the inside of the vehicle, and the plug body 2 is fitted into the drain hole 1 from the inside of the vehicle. At this time, since the outer side of the peripheral edge portion 22 is deformed, the plug body 2 can be easily inserted into the drain hole 1. After the insertion, as shown in FIG. The plug body 2 is prevented from being pulled out by engaging with the lower surface of the panel P at the peripheral edge of the drain hole 1, and at the same time, the outer periphery of the peripheral edge portion 22 bent inward is restored to the original state and the water drain hole 1. The seal lip 23 is in close contact with the upper surface of the panel P at the periphery of the drain hole 1. Further, when the pin portion 32 of the valve 3 is inserted into the insertion hole 21a from the outside of the vehicle with respect to the inserted plug body 2, the base portion 31 of the valve 3 is deformed and the inner periphery of the peripheral edge portion 22 of the plug body 2 is inserted. The discharge holes 21b are sealed in close contact with the surface.

  Therefore, according to the above-described embodiment, the seal lip portion 23 is in close contact with the inner surface of the peripheral panel P of the drain hole 1, and the outer periphery of the peripheral portion 22 of the plug body 2 is in close contact with the inner periphery of the drain hole 1. Therefore, it is possible to prevent the gap between the plug body 2 and the panel P from being increased and the base 31 of the valve 3 is connected to the inner periphery of the peripheral edge 22 of the plug body 2. Since each discharge hole 21b is closed in close contact with the surface, the drain hole 1 can be sealed with higher airtightness, and water can enter the vehicle by the momentum of water even during car washing or submergence. Can be reliably prevented.

  At this time, when the outer peripheral surface of the circular peripheral portion 22 of the plug body 2 receives water pressure toward the center, the open end of the groove portion 22a of the peripheral portion 22 of the plug body 2 is opposite to the insertion hole 21a. And the adhesion between the inner peripheral surface of the peripheral edge 22 and the base 31 of the valve 3 is further enhanced, and at the same time, the outside of the open end of the groove 22a of the peripheral edge 22 is bent outward. The seal lip portion 23 is pressed against the panel P to improve the adhesion, and water can be prevented more reliably from entering the vehicle.

  Further, since the peripheral edge portion 22 of the plug body 2 has a groove portion 22a having a V-shaped cross section that is open to the inside of the vehicle, dust is collected in the groove portion 22a of the peripheral edge portion 22 and the structure is inexpensive. By accumulating, it is possible to prevent the discharge holes 21b from being blocked by dust, and by removing the valve 3 to the outside of the vehicle, the water in the vehicle is surely discharged from the discharge holes 21b to the outside of the vehicle. It becomes possible to do.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the three discharge holes 21b that are provided in the disk portion 21 of the plug body 2 have been described. However, the number of the discharge holes 21b may be at least one.

  Further, the valve 3 is not limited to the shape of the above-described embodiment, and the tip of the guilloche-shaped pin portion 32 may further extend in consideration of ease of insertion into the insertion hole 21a.

P ... Panel 1 ... Drain hole 2 ... Plug body 3 ... Valve 4 ... Hole plug 21 ... Disc part 21a ... Insertion hole 21b ... Discharge hole 22 ... Peripheral part 22a ... Groove part 23 ... Seal lip part 31 ... Base part 32 ... Pin part

Claims (1)

In the drain plug hole plug structure that is attached to the drain hole formed in the vehicle panel and prevents the intrusion of dust from the outside of the vehicle and allows the water accumulated in the vehicle to be discharged outside the vehicle.
The drain hole is circular;
The hole plug is composed of a plug body and a valve,
The plug body is
A disc portion having a diameter slightly smaller than the drain hole,
An insertion hole pierced in the center of the disk portion and at least one discharge hole pierced in the vicinity of the insertion hole;
An outermost diameter larger than the drainage hole having a groove portion having a V-shaped cross section, the inner side of the open end of the groove portion being continuous with the peripheral edge of the disk portion, and the outer side of the open end being integrally formed to be deformable inward. The periphery of
A seal lip portion that is integrally formed on the outer peripheral upper end of the peripheral edge portion and is in close contact with the inner surface of the panel at the peripheral edge of the drain hole;
The valve is
A dish-shaped flexible base that has a diameter larger than the disk portion and smaller than the outermost diameter of the peripheral portion and closely contacts the inner peripheral surface of the peripheral portion, and is integrally formed at the center of the base portion and is inserted into the insertion hole. With a pin portion inserted from the outside,
The drain plug hole plug structure, wherein the plug body is inserted into the drain hole from the inside of the vehicle, with the open end of the groove portion of the peripheral portion being the vehicle interior side.

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