JPH0732353Y2 - Drain plug - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention reliably removes invading rainwater, washing water, dew condensation water, etc. accumulated inside the body panel of an automobile or the like, and prevents rusting of the body panel. Providing a drain plug that is designed to prevent

[Prior Art] In automobiles and the like, since rainwater or washing water enters the body panel, waterproofing measures such as weather strips are generally taken.

However, rainwater and cleaning water easily enter the inside of the vehicle body panel from the joints of the vehicle body panel and the window opening edge of the vehicle, and the rainwater, cleaning water, etc. remain in the bag-shaped part of the vehicle body panel. was there.

From this point of view, a water draining hole is opened in a bag-shaped portion composed of an outer panel and an inner panel in a rear fender portion of a vehicle body of an automobile or the like, and water invading into the bag-shaped portion is discharged to the outside of the vehicle body. It can be discharged to.

However, when an automobile or the like is used with such a water draining hole left open all the time, muddy water, splashes, dust, etc. are splashed up as the vehicle travels and the body panel is removed from the water draining hole. It was said that it had penetrated into the interior and caused the body panel to rust.

From this point of view, a rubber plug etc. is fitted in the water drain hole provided in the body panel part, and measures are generally taken to prevent muddy water splashed from the water drain hole, dust, etc. from entering the body panel. Has been. However, such a method of preventing the intrusion of muddy water by closing the water drain hole is low in installation cost, and while the effect of preventing intrusion of muddy water is surely secured, on the other hand, the plug is removed one by one, and Since it is necessary to remove the rainwater and the like stored in the vehicle, there is a fitting that makes it difficult to remove the stored rainwater and the like, and there is a problem that rusting of the vehicle body panel is caused by the stored rainwater and the like.

From this point of view, the drain plug that leads out from the vehicle body panel to the outside at any time without accumulating rainwater or washing water that enters the vehicle body panel is improved, and muddy water or dust that is splashed up The drain plug has been improved so that it does not enter the inside of the vehicle body panel through the drain hole of the drain plug.

From this point of view, in the invention of Japanese Examined Patent Publication No. 63-15186, a part of the drain plug body to be used by fitting it into the drain hole formed in the body panel is installed along the body panel, A skirt portion is provided in the radial direction, and a drainage passage having one end opened in the water drain hole and the other end opened to the outside of the vehicle body is provided on the contact surface of the skirt portion in contact with the vehicle body panel. At the same time, there is shown a drain plug in which a backflow preventing portion that allows drainage of rainwater and the like and that prevents intrusion of muddy water and the like is provided in the drainage passage.

The invention of JP-A-60-45579 also discloses a drain plug having a bent water discharge groove.

Further, in the invention of Japanese Utility Model Publication No. 46-4482, the guide groove communicating with the inner surface of the vehicle body panel or the like and the annular concave shape formed in close contact with the outer surface of the vehicle body panel or the like are communicated with each other, and one of the annular recesses is formed. There is shown a drain hole plug for guiding rainwater or the like that has entered the inner surface of a vehicle body panel or the like to the outside by bypassing the guide groove-annular recess-notch portion by notching the portion.

Furthermore, in the invention of Japanese Utility Model Publication No. 59-13150, a drain groove is provided in a plug body having a seal flange, and a panel abutting seal lip is provided on the panel facing surface of the seal flange, and the outer edge of the seal flange is inwardly movable. A flexed service hole plug is shown.

[Problems to be solved by the invention] The drain plug disclosed in Japanese Utility Model Publication No. 63-15186, the drain plug disclosed in Japanese Utility Model Publication No. 60-45479, and the one disclosed in Japanese Utility Model Publication No. 46-448. Both the drain hole plugs and the service hole plugs disclosed in Japanese Utility Model Publication No. Sho 59-13150 guide rainwater or washing water that has entered the body panel of an automobile or the like smoothly and reliably outside the body panel. At the same time, it has a structure that prevents splashing muddy water, dust, and the like generated as the vehicle travels from being inserted into the vehicle body panel.

However, in any of the above-mentioned conventional examples, the water drain holes provided from the inside to the outside of the vehicle body panel of an automobile or the like are slightly formed between the surface of the vehicle body panel and the surface of the drain plug or the like that is in close contact with the surface. The groove is provided in a flange portion of the drain plug which is provided in a gap or is in close contact with the outer surface of the vehicle body panel.

As a result, when the splashed muddy water, dust, or the like adheres to the surface of the drain plug, the drain hole of the drain plug is easily closed and its function is lost. Further, in any of the above-mentioned conventional examples, the water drain holes provided along the surface of the vehicle body panel or the like are often configured to be flat along the surface of the vehicle body panel or the like. There was a problem that muddy water or dust that was sprayed on the surface of the car would enter the inside of the vehicle body panel through the water drain hole.

Furthermore, in the above-mentioned conventional example, since the drainage hole is formed in the flange portion of the drainage plug that is in close contact with the surface of the vehicle body panel or the like, after fitting the drainage plug into the drainage hole,
When a protective film for rust prevention is formed by spraying on the surface of the vehicle body panel including the drain plug, there is a problem that the protective film formed by coating blocks the drain hole of the drain plug.

Furthermore, in the above-mentioned conventional technique, the water drain hole is formed in close contact with the surface of the vehicle body panel or the like, and the internal space of the vehicle body panel or the like is formed on the surface substantially the same as the surface of the vehicle body panel or the like. Therefore, there has been a problem that the splashed muddy water or dust is easily blown into the inside of the vehicle body panel along the surface of the vehicle body panel.

In view of the disadvantages of the conventional drain plug, the drain plug according to the present invention forms a sufficient space between the panel surface of the drain hole and the flange portion of the drain plug, and Inside the water draining hole provided along it, prepare a cylindrical leg that is installed almost orthogonal to this water draining hole, and block the water draining hole of the drain plug with splashed muddy water or dust. It is an object of the present invention to provide a drain plug that does not come off and that muddy water or dust does not enter the internal space such as the panel through the drain hole.

[Means for Solving the Problems] In the invention of claim 1, the drain plug according to the present invention is a means for achieving the above object. A drainage plug A used for assembling into a drainage hole of an object, the drainage plug A being a flange-shaped head portion 1 and a cylindrical leg portion 2 projecting from a substantially central portion of the head portion 1. And a resiliently deformable locking piece 3 and a brim 4 are provided on the leg portion 2, and between the locking piece 3 and the brim 4 of the drainage hole 5 of the vehicle body panel B of an automobile or the like. Hold the hole edge 5a. Therefore, the collar 4 is provided closer to the head 1 than the locking piece 3, and
A drain hole 6 is provided in the peripheral wall of the leg 2 ′ between the collar 4 and the head 1 so as to communicate the inside and outside of the leg 2.
Further, the peripheral side 1a 'of the upper side 1a of the flange-shaped head portion 1 is curved so as to contact the surface of the attachment object toward the protruding direction of the leg portion 2 and adheres closely to the surface of the vehicle body panel B. It is configured to do.

Further, in the invention of claim 2, the drainage hole 6 is provided in the lower peripheral wall of the leg portion 2, and the collar 4 and the flange-shaped head 1 are provided so as to cover the front surface of the opening of the drainage hole 6. The drainage plug A is formed by providing the shield plate 7 between the two.

Further, in the invention of claim 3, the drain plug A is formed by providing the claw piece 8 on the tip side of the leg portion 2 toward the head portion 1 along the outer periphery of the leg portion 2.

[Operation] Since the drain plug A according to the present invention has the above-described structure, by inserting the leg portion 2 of the drain plug A into the drain hole 5 provided in the vehicle body panel B, the leg portion 2 The locking piece 3 is bent inwardly of the leg portion 2 by the hole edge 5a of the water draining hole 5, and the leg portion 2 is inserted into the water draining hole 5. Then, when the tip of the locking piece 3 passes over the hole edge 5a, the locking piece 3 elastically returns outward, and between the locking piece 3 and the collar 4, the drain hole 5 of the vehicle body panel B is removed. The drain plug A is attached to the vehicle body panel B while holding the hole edge 5a.

The head 1 of the drain plug A attached to the body panel B
The peripheral side 1a 'of the upper side 1a is in close contact with the surface of the vehicle body panel B, and rainwater or washing water does not flow into the inside of the vehicle body panel B from the upper side of the drain plug A.

In addition, there is a sufficient gap between the collar 4 and the flange-shaped head portion 1, and the drain hole 6 formed transparently on the peripheral wall of the leg portion 2 ′ between them.
Has a large space in the opening portion of the hole 6, and the hole 6 is not blocked by splashed muddy water or dust.

Further, muddy water or dust blown toward the hole 6 along the surface of the vehicle body panel B is received by the cylindrical leg portion 2, and the force at the time of blowing the muddy water or dust is reduced. Rainwater or the like that does not easily flow into the interior and smoothly enters is smoothly guided to the outside from the surface of the vehicle body panel B.

According to the invention of claim 2, since the shielding plate 7 is arranged below the water draining hole 6 so as to cover the front of the opening of the water draining hole 6, muddy water directed downward from the drain plug A or upward. Intrusion of dust etc. is prevented.

According to the third aspect of the present invention, even when the paint seal 9 or the like remains inside the drain hole 5, by removing the paint seal 9 using the claw piece 8, the leg portion 2 of the drain plug A can be securely attached. Can be inserted into.

[Embodiment] An embodiment of a typical drain plug A according to the present invention will be described below with reference to the accompanying drawings.

In general, the vehicle body panel B has a bag-shaped portion formed at a joint portion between an outer vehicle body panel B ′ and an inner vehicle body panel B ″, such as a rear fender, and the vertical or Water drainage hole 5 on the sloped object
In the present embodiment, the drain plug A is used for attachment to a vertical or inclined attachment object portion that constitutes this bag-shaped portion.

The drain plug A attached to the vehicle body panel B is made of plastic, and has a flat flange-shaped head portion 1 and a tubular leg portion 2 integrally projecting from a substantially central portion of the head portion 1. The leg 2 is provided with a collar 4 on the side close to the head 1 so as to rotate around the peripheral surface of the leg 2, that is, in a ring shape, and a water drain hole 6 is formed between the collar 4 and the head 1. A leg portion 2'through which the auxiliary drainage holes 10 and 10 are provided is formed. The water drain hole 6 which is transparently provided in the leg portion 2'is provided at substantially the center of the lower side of the leg portion 2 ', and projecting walls are formed on both sides of the hole 6 so that muddy water or the like is not directly blown into the hole 6. 11 and 11 are provided, and a shielding plate 7 is provided so as to cover the front of the opening of the water draining hole 6 between the collar 4 and the head 1. As a result,
The drainage hole 6 has the flow paths 6a and 6b which are bent substantially at right angles by the projecting walls 11 and 11 and the shield plate 7, and the splashed muddy water and the like collide with the shield plate 7, and Most of them fall without reaching the drain hole 6. Even when a part of the splashed muddy water or the like is blown into the horizontal flow path 6a, the flow path 6b is provided in a direction substantially orthogonal to the flow path 6a, so that the muddy water or the like is not supported. There is no intrusion into the part 2. Further, as shown in FIG. 6, the auxiliary drainage holes 10 are provided on the left and right sides of the leg portion 2 ′ so as to communicate the inside and outside of the leg portion 2 ′, and between the head portion 1 and the collar 4. The gap x formed in 1 is used as a drainage channel, and the presence of this gap x prevents clogging of the drainage hole 10 with muddy water or the like.

Further, the head portion 1 having a flange shape is curved at a peripheral side 1a 'of an upper side 1a thereof toward a direction in which the leg portion 2 is projected, and a vehicle body panel to which the drain plug A is mounted. It is designed to adhere to the surface of B in a watertight manner.
It is curved so that a'closely contacts the surface of the vehicle body panel B.

On the other hand, the lower side 1b of the head 1 is provided so as to cover the front surface of the leg 2'attached to the vehicle body panel B,
A gap x similar to the above is formed between the lower side 1b and the collar 4.

Next, on both sides of the leg portion 2, locking pieces 3 are provided in window holes 12 formed in a U-shape so as to gradually project outward from the peripheral wall of the leg portion 2 toward the flange 4 side. Cage, this locking piece 3
Then, the hole edge 5a of the drain hole 5 of the vehicle body panel B is clamped between the collar and the collar 4, and the drain plug A is attached to the vehicle body panel B.
The locking piece 3 has a stepped portion 3a on the outer side of its tip,
By forming the convex edge 3b on the inside, the locking piece 3
The stepped portion 3a comes into contact with the inner surface of the vehicle body panel B, and the projecting edge 3b engages with the inner peripheral wall of the drainage hole 5 to prevent the locking piece 3 from excessively expanding. The U-shaped window hole 12 also functions as a hole for taking in rainwater and the like.

Further, the tubular leg portion 2 has a lower peripheral wall 2b rather than an upper peripheral wall 2a.
Is provided for a long time, and it is convenient for collecting rainwater or washing water, and a cutout 13 is provided in the upper peripheral wall 2a, so that rainwater, washing water or condensed water flowing along the inner wall of the vehicle body panel B can be passed through the legs 2 The leg portion 2 is shaped so as to be easily inserted therein and the leg portion 2 is easily inserted by reducing the thickness of the outer periphery of the lower peripheral wall 2b on the tip side to form a tapered surface 2b '.
Further, when forming the drainage hole 6, the flow path 6b is formed at the bottom of the leg 2.
Is formed, and the flow path 6a communicating with the flow path 6b is formed along the outer circumference of the leg portion 2 ', so that the flow paths 6a and 6b have a shape convenient for die cutting.

The drain plug A having such a configuration is attached to the vehicle body panel B, and the protective film 14 for rust prevention is applied by spraying.

The drain plug A shown in FIG. 9 has a claw piece 8 directed toward the head 1 along the outer periphery of the leg 2 on the tip side of the leg 2, and the body panel When the paint seal 9 or the like is left in the bag-shaped portion composed of B'and B ", the paint seal 9 or the like can be scraped out, and a separate scraping tool such as the paint seal 9 is required. Not.

The drain plug A having the above-described structure has a gap x formed by the head 1 and the collar 4 at the portion of the leg 2 ′ where the drain holes 6 and 10 are opened. Since the front of the opening is completely covered by the head 1, muddy water or dust spattered up is not directly blown into the holes 6 and 10, and these holes 6 and 10 are clogged. Nothing.

Then, muddy water or the like blown into the drain plug A from the hole 6 is substantially blocked by the shield plate 7 and the projecting walls 11 and 11 so as to be prevented from flowing into the leg portion 2 from the hole 6 and the hole 6 The muddy water and the like that has flowed in from the inside remains in the cylinder of the leg portion 2 and flows out to the outside more than it flows into the bag-shaped portion formed by the vehicle body panel B.

Further, even if the hole 6 is clogged for some reason, or if a large amount of rainwater, washing water, etc. flows into the inside of the vehicle body panel B, the holes 10 and 10 are provided in the leg portion 2 '. Rainwater and the like will not remain in the body panel B.
Further, since the hole 10 is provided inside the flange-shaped large head 1, the muddy water splashed from the lower side of the drain plug A does not reach the hole 10 directly.
There is no problem of clogging of the hole 10 or inflow of muddy water or the like through the hole 10.

[Effect] The drain plug A according to the present invention has the above-mentioned characteristic structure, and when the drain plug is attached to the drain hole 5 of the vehicle body panel B, the hole 6 is provided with a sufficient gap x. Since the leg 2 ′ is positioned between the flange 4 that holds the vehicle body panel B and the flange-shaped head 1, the hole 6 is formed. There is no inconvenience of being blocked by splashed muddy water.

Further, muddy water or the like blown along the surface of the vehicle body panel B to which the drain plug A is attached is not caught in the cylinder of the leg 2 and does not scatter inwardly of the vehicle body panel B. It is led out from the drain plug A to the outside of the vehicle body panel B again.

Further, even when the protective film 14 for rust prevention is formed by spraying after mounting the drain plug A, the hole 6 does not become clogged because of the sufficient gap x.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state in which a typical drain plug of the present invention is attached, FIG. 2 is a perspective view of the drain plug, FIG. 3 is a vertical sectional view seen from the same side, and FIG. 4 is a side view of the same. 5 is a rear view seen from the leg side, FIG. 6 is the same vertical sectional view, FIG. 7 is the same bottom view, FIG. 8 is the same horizontal sectional view, and FIG. 9 shows other drain plugs. It is sectional drawing which shows an attached state. A: drain plug, B: body panel, 1 head, 2
...... Legs, 3 ... Locking pieces, 4 ... Trims, 5 ... Drainage holes,
6 ... Water drainage hole, 7 ... Shielding plate, 8 ... Claw piece, 9 ... Paint seal, 10 ... Hole, 11 ... Projection wall, 12 ... Window hole, 13
…… Notch, 14 …… Protective film.

Claims (3)

[Scope of utility model registration request] 1. A drain plug used for assembling in a drain hole of a mounting object such as a vehicle body panel vertically or inclined, wherein the drain plug is a flange-shaped head and the flange-shaped head. And a cylindrical leg portion projecting from a substantially central portion of the portion, the leg portion projecting between the elastically deformable locking piece and the locking piece and the head. And a collar that holds the hole edge of the water drain hole between it and a stop piece, and one or more water drain holes are transparently provided on the leg peripheral wall between the collar and the head. At the same time, the drain plug is characterized in that the upper peripheral side of the flange-shaped head portion is curved so as to contact the surface of the attachment target toward the protruding direction of the leg portion. 2. A water drainage hole is provided through the lower peripheral wall of the leg portion, and a shield plate is provided between the flange below the water drainage hole and the flange-shaped head. The drain plug described in 1. 3. The drain plug according to claim 1, wherein a claw piece is provided from the tip end side of the leg portion toward the head side along the outer circumference of the leg portion.