JPS6045479A - Drain plug - Google Patents

Abstract

PURPOSE:To prevent waste water out of the outside from penetrating into the inside of a car body as well as to make the infiltrate water into the car body, if any, flowable outside, by extending a flush tongue piece from a plug body, while making up a bent outlet groove in the flush tongue piece. CONSTITUTION:A rectangular flush tongue piece 2 is extendedly installed in a diametral direction from a plug body 1 formed in circular form with a flexible material, while a circular engaging projection strip 3 to be fitted in a drain hole is projectingly installed in position away from a backside 1' of the plug body 1. And, at a backsode 2' of the flush tongue piece 2, each of symmetrical guide vertival strips 51 and 52 being lower than the said engaging projection strip 3 is projectingly installed therein. With this constitution, a drain concave surface 6 having a drain port 6; opened is made up, and this concave surface 6 is interconnected to an opening space 4 surrounded by the projection strip 3 via a notched port 4'. In addition, at this drain concave surface 6, each of backflow preventing projections 7 and 7' is installed alternately at both sides from the inner surface of these guide vertical strips 51 and 52 whereby a bent outlet groove 8 is formed in this way.

Description

[Detailed Description of the Invention] The present invention is made by using a flexible material such as rubber or synthetic resin that is removably fitted into a drainage hole drilled in a cross panel of a vehicle body, etc. Relating to improvements in formed drain plugs.

As shown in Figure 1, the automatic tunnel is equipped with weather strips B and other water protection measures to prevent rain and car wash water from entering the heavy body A.

However, water droplets may enter the bag-shaped portion A' of the vehicle body A, such as the floor panel or the toe/lid C, from the joints of the panels or the edges of the window openings.

Therefore, in order to avoid accumulation of infiltrated water, drainage holes are provided in the floor panel and the side panel F of the trunk floor facing the rear fender E of the trunk C as shown in FIG.

However, if the drain hole is left open, sewage, dust, etc. will enter the vehicle body A from here, so as shown in the figure, the drain hole is closed by fitting the rubber plug During normal times, this was closed and any water that had entered was stored in the bag-shaped part A', and the rubber stopper G was removed each time and water was discharged from there.

Therefore, consideration was given to eliminating the hassle of fitting and removing the rubber stopper G as described above, and as shown in Figure 3, the stored water H can be naturally released while it is already fitted into the drain hole. Japanese Utility Model Publication No. 48-4'0255 has proposed a water draining device using a drain plug (2) which can also prevent sewage from entering from the outside.

In this water drainage device, a cutout groove D' is provided extending at the bottom of the drainage hole, and a thin flap piece J is formed on the outer periphery of the drainage plug (■) fitted into the drainage hole, so that the stored water H can be removed. The water pressure presses and expands the thin flap piece J, which is normally in close contact with the inner plate, and drains water from the gap created by this in the direction of the arrow through the notch D'. 1
They are trying to use the vibrations of the car body to open the two gaps.

For this reason, when using the above device, it is necessary to
By forming the thin flap piece J, the intrusion of sewage from 1 is prevented.
The water cannot be discharged until it reaches a considerable water level, and the gap obtained by expansion is also small, so the water discharge is not smooth, and the gap is easily clogged by filth, etc., so that the stored water cannot be completely discharged. Because it is difficult to secure them, corrosion of the car body panels is all the more likely.

The present invention is an improved drainage plug in view of the above-mentioned conventional carp points, and is made by extending a pressing tongue from the plug body and forming a curved water discharge groove on the tongue. , substantially prevents infiltration of sewage, dust, etc. from the outside! 11, and has the function of constantly draining water that has entered into the vehicle body A, etc., to the outside, thereby fulfilling the role required of the Jul water plug until it is fitted into the drain hole. Its purpose is to accomplish this.

The present invention will be described in detail with reference to the embodiment shown in FIG. 4. As with conventional products, it is preferable to integrally mold the material using flexible synthetic resin such as rubber or vinyl chloride, and in the illustrated example, it is circular. A rectangular pressing tongue piece 2 extends in the radial direction from the plug body 1, and an arcuate engagement protrusion 3 that fits and locks into the drain hole projects from the back surface 1' of the plug body 1. has been done.

In this embodiment, an open recess 4 surrounded by the protrusion 3 is formed, but the engaging protrusion 3 is not closed in an annular shape, and the recess 4 is on the side of the pressing tongue piece 2. It is in an open state at a notch 4' in the figure, and 3' in the figure does not indicate a fitting groove that is engaged with the edge of the drainage hole.

Furthermore, the back surface 2' of the pressing tongue piece 2 is connected to the back surface 1 of the plug body 1.
The drain port UY16 is formed at the same height as the drain port 6', and has guide vertical strips 51 and 52 protruding from the left and right sides lower than the engaging protrusion 3 on the back surface 2', thereby opening the drain port 6' by m. The concave surface 6 communicates with the opening space 4 through a notch 4'.

Furthermore, in the present invention, from the drainage concave surface 6, the guide vertical strip 611
By protruding backflow prevention protrusions 7, 7', etc., which are the same height as 6□, a bent water drainage groove 8 as shown in the dashed line in Fig. 4 is formed. If there is a guide vertical strip 5
By making 4 backflow protrusions 7.7' horizontally protruding by a predetermined length alternately on the left and right sides from the inner surface of the 0.62 mm,
The water discharge groove 8 is bent in a meandering manner.

On the other hand, in the embodiments shown in Figs. 7 and 8, the backflow prevention protrusions 7, 7', etc. are not connected to the guide vertical strips 5゜5□, but are made independent from the drain outlet surface. In Figures 7 and 8, cylindrical and triangular prism-shaped objects are installed in several stages toward the drain 6', with each stage protruding 1° from each other, so that the arrangement of each stage stands out from the others. The groove 8 is bent into a wave shape, and the diameter of the columnar arrangement and the base length of the triangular prism are 1, which is larger than the length of 11J of water II 6'.

In the case of Fig. 7, unlike the case of Fig. 4, the mooring protrusion 3 is closed in an annular shape, and therefore the opening recess 4 and the J'+1 water gate face 6 are not in communication. However, when using such a device, a cutout groove I]' is extended in the drain hole as shown in the dashed line in the figure, and the stored water H is drawn from the cutout groove D' to the water utilization concave surface 6. This will allow for an influx of foreigners.

Therefore, in order to adopt the drain hole in the side panel F of the trunk floor shown in FIG. 5 as shown in FIG. The locking protrusion 3 is engaged with the bottom surface of the guide strip 68.6□.
and the backflow prevention protrusion 7.7' come into contact with the joining slope M between the rear fender E and the trunk floor side plate part F, and therefore, the accumulated water that has flowed into the bottom of the rear fender E The water is discharged from the open space 4 through the water discharge groove 8 to the outside from the drain port 6'.

Furthermore, FIG. 6 shows a case where the application is applied to a drain hole drilled in a concave portion N' of a floor panel N. In this case, as in the previous embodiment, the locking protrusion 3 is pushed in and the drain hole is opened. It is only necessary to fit and lock the guide longitudinal strip 61.5 of the pressing tongue piece 2.
2 and the backflow prevention protrusions 7, 7', .

Therefore, in this case, when the infiltrated water flows into the concave portion N', the infiltrated water flows into the open space 4 while bypassing the groove 8, and is discharged from the space 4 to the outside. .

In the case of something like the one shown in Figure 7, as mentioned above,
Water that enters from the notch D' extending into the drainage hole is drained from the drainage concave surface 6.
This water is further discharged through the water discharge groove 8.

Although the water extraction plug of this embodiment is attached from the inside of the vehicle, it may also be attached from the outside of the vehicle.

The present invention is embodied by the second embodiment,
A pressing tongue piece 2 extends in the radial direction from the plug main body 1 which is fitted and locked in the drain hole of Contacting guide vertical strip 60.62
A drainage concave surface 6 with an open end is formed by protruding from the drainage concave surface 6, and backflow prevention protrusions 7.7' having the same height as the guide vertical strip 50.6 □ are projected from the drainage concave surface 6. By this,
The infiltrated water flowing from the drain hole is discharged from the drain hole 6' by the drain plug which has a curved water discharge groove 8.
By extending the pressing tongue piece 2 from the plug body 1, the pressing state can be ensured by adapting to the curved panel surface as shown in FIG. Since the water discharge groove 8 is formed in a bent shape, when the water discharge groove 8 is opened, the drain hole Dl'C is fitted in the N state.
It is guaranteed that the infiltrated water can be smoothly discharged to the outside, and this water discharge groove 8 has a backflow prevention protrusion 7.7'.
Since it is formed in a bent shape, dirty water and dust from the outside are prevented from entering the vehicle body in multiple layers by the backflow prevention protrusions 7, 7'.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the rear of a car, Figure 2 is a longitudinal cross-sectional view taken along the line n--■ in Figure 1 showing how a conventional drainage plug is installed, and Figure 3 is the same (conventional car body water drainage system). , (a) is its longitudinal sectional view, (b) is its partially cutaway front view, and the fourth
The figures show the drain plug according to the present invention, (A) is a rear view thereof, (B) is a vertical right side view, FIG. FIG. 6 is a longitudinal sectional view of the same product showing a floor panel fitted state, FIG. 7 is a rear view of a drain plug according to another embodiment, and FIG. 8 is a rear view of the main parts of the same different example. 1...0@Plug body 1'...Φ Back surface 2...Press tongue piece 3...Locking protrusion 6.16□...Guiding vertical strip 6... ... Drainage concave surface 6' ... Drain port A, 7' ... Backflow prevention protrusion 8 ... Bent water discharge groove A ... Vehicle body D ...・Patent attorney Makoto Ito, representative of the patent applicant for water drainage holes

Claims (1)

[Claims] +11 A pressing tongue extends in the radial direction from a plug body that is fitted and locked in a water drain hole of a vehicle body, etc., and a panel around the water drain hole is provided on the back side of the pressing tongue. A guide vertical strip that comes into contact with the surface is provided to protrude from side to side to form a drainage concave surface with an open end.
A drainage plug that has a backflow prevention protrusion that is the same height as the guide vertical stripes protruding from the drainage concave surface to form a curved water discharge groove through which the water that has entered the vehicle that flows from the drainage hole is discharged from the drainage port. (2) The drainage plug according to claim 1, wherein the bent water discharge groove is formed in a meandering manner by backflow prevention protrusions that protrude laterally by a predetermined length alternately from the left and right inward from the guide vertical strip. . (3) The curved water discharge groove is formed in a wavy shape by a backflow prevention protrusion that is spaced apart from the guide vertical strip and protrudes from the drainage concave surface.