JPS5973342A - Drip seal apparatus for car body - Google Patents

Abstract

PURPOSE:To prevent a seal lip from being scratched by a seal member in a door hemming part, by constituting the first trough concaved part from the basic part of a door weather strip and the peripheral edge part of a door opening and constituting the second trough concaved part from said basic part and a seal lip. CONSTITUTION:A door weather strip 20 has a basic part 20a installed onto a drip channel 3b, seal leg piece 20b, and a seal lip 20d. The basic part 20a and the seal leg piece 20b on the peripheral edge part of a door opening form the first trough concaved part 22, and said basic part 20a and the seal lip 20d form the second trough concaved part 24. Therefore, the seal lip 20d is prevented from being attached onto a seal member 13 in the hemming part of a door 7, and prevented from being scratched, and a sufficient sectional area for a trough can be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle body drip seal device having a drip function.

Conventionally, this type of sealing device has been designed as shown in FIG. In the figure, reference numeral 1 denotes a roof site rail serving as a peripheral panel of the opening of the vehicle body, which is welded to form an outer panel /a and an inner panel /b to form a box-shaped vertical section.

3 is one membrane surface of roof sight rail outer panel/a/C
One side part 3a is polymerized and welded, and the other side part 3b is one film surface/c.
A drip channel S is a drip weather strip that is installed with its base Ja sandwiching the other side 3b of the drip channel 3, and the seal lip extending from the base Ja is A recess 9 is formed which elastically contacts the hemming joint 7C between the sash outer panel 7a and the sash inner panel 7b of the door 7 to perform a drip function. This recess 9 has an optimal cross-sectional area to catch rainwater, etc. that has flowed down from the roof panel (not shown) and prevent it from flowing down to the door glass (not shown), and also to prevent rainwater from flowing down to the occupant when the door 7 is opened. I try to prevent it from dripping.

l/ is a door weather strip attached to the outer periphery of the inner door panel 7b of the door 7 with an adhesive 12, and when the door is closed, it makes elastic contact with the roof side rail outer panel/a to seal the inside and outside of the mold room. .

By the way, the door 7's satsushi hemming joint 7c (7
') Sealant /3 is pasted on the terminal to prevent door rusting, and the seal lip of the drip weather stripper is damaged due to friction with the protrusions of this sealant /3 and the wood edge of the hemming joint 7c. ! There is a problem in that b is damaged, causing scraping noise, undesirable abnormal noise, and seal failure.

In order to solve such abnormal noise and seal problems, it is conceivable to make the seal lip of the drip weather strip come into elastic contact with the general surface 7d of the sash inner panel 7b, but this would prevent the drip function from being effective. The cross-sectional area of the recess 9 is smaller than that in Figure 2, and there is a risk that rainwater, etc. that has flowed down from the roof panel will overflow from the recess 9 and drip onto the occupant when the door is opened. The reality is that it cannot perform a sufficient drip function.

This invention has been made in view of the above-mentioned circumstances, and includes a drip seal device 4 that prevents seal failure and abnormal noise while ensuring appropriate drip cross-section damage. This is what we provide.

In order to achieve such an object, the present invention forms a first rain gutter recess with the base of the drip weather strip and the opening periphery of the heavy body, and also includes a weather strip base with a seal lip extending from the base. The gist of this system is to form the second four parts for the rain gutter so that the seal lip comes into elastic contact with the door membrane surface. The area is properly secured as the sum of the areas, and the seal lip is prevented from coming into elastic contact with the hemming joint of the door, thereby preventing damage to the seal lip and sealing failure.

The embodiments shown in Figures 1 and below will be described below with the same reference numerals assigned to the same parts as in the prior art.

In FIGS. 3 to 5, a drip channel 3 is provided in the outer panel role/C of the roof site rail l formed by the outer panel/a and the inner panel/b.
One side 3a is polymerized and welded, and the other side 3b of the drip channel 3 is provided with a drip weather strip 20I.
)' - installed.

This drip weather strip 20 is on the other side of the drip channel...? A roughly inverted U-shaped base 20a that is attached to the base 20a, and seal legs that extend from both lower ends of the base 20a and come into elastic contact with one side 3a of the drip channel 3 and the roof site rail outer spring loop installation surface /C, respectively. The pieces 10b, , 20c extend in a roughly V-shape from the side edges of the base 20a, that is, from the side periphery located on the lower side, and the tip ends on the general surface 7d of the inner door panel 7b of the door 7. It consists of a seal lip 20d that makes elastic contact.

The base JQa and the drip channel side 3a form a first rain gutter recess 2.2, and the base 2(1)a and the seal lip 2(7d) form a second rain gutter recess 2.2. A gutter recess 2tI is formed.

Therefore, the part that performs the drip function is the first part. Each of the second four parts 'L2. ．． This is appropriately secured as a phase with a cross-sectional area of 2'J. Moreover, it goes without saying that the /-lurig 20d is brought into elastic contact with the general surface 7d of the sash inner panel 7b at a position where it does not come into contact with the sealant /3.

Next, referring to the material of the drip weather strip 20, the base 20a is made of hard solid rubber, for example, and there is a drip channel inside the other side 3b.
A recess 2081 as shown in FIG. 5 is formed so that the sealing leg piece 3C is firmly held in the terminal folding portion 3C of the sealing leg piece, Ob.

20c and the seal lip 20c and the seal lip 20c are formed of a soft sponge with considerably low hardness, and are in close contact with the drip channel side 3a, the roof site rail outer honeycomb membrane surface 1C, and the inner seat panel 7b upon elastic contact. In this way, the base 20a is made hard to some extent, and the seal leg pieces: t, ob.

The UOC and seal lip 20d are made soft to provide sufficient sealing and holding power.

Therefore, when a resin such as PVO is used as the material of the drip weather strip 20, the base,! Oa is made to be hard to some extent, and the seal leg piece is Job.

20c and the seal lip 20d are made of soft foamed PVO, meaning that the base is hard and the sealing part is soft.

Further, the seal leg piece 20b is made to come into elastic contact with one side 3a of the drip channel 3, but the seal leg piece 20b
b is formed wide or drip channel -
When the side portion 3a is formed narrowly, it goes without saying that it comes into elastic contact not only with the drip channel side portion 3a but also with the roof site rail outer panel membrane surface/C.

With this configuration, rainwater No. 1 flowing from a roof panel (not shown) is first received by the first recesses F, 2, guided along the longitudinal direction of the drip weather strip 2O, and discharged to the outside. However, the rainwater etc. that overflowed in the first concave part 2II is stopped by the second concave part 2II, and the drip weather strip, etc.
It is guided along the longitudinal direction of 20 and discharged to the outside.

In addition, the seal lip 20d is designed to come into elastic contact with the inner spring fitting surface 7d, ensuring close contact.Furthermore, since the seal lip 20d does not come into contact with the sealant/3 or the wood end r of the seal/juheming joint 7C, the seal lip 20d is not damaged or rubbed, the sealing performance is sufficiently exhibited, and no abnormal noise is generated.

As described above, according to the present invention, it is possible to obtain a drip seal device that exhibits sufficient drip function, has improved sealing performance, and is of good quality without generating any abnormal noise.

[Brief explanation of drawings]

Figure 1 is a side view of the famous water tank, Figure 2 is a conventional example. FIG. 3 is a sectional view similar to FIG. 2, FIG. ψ is a sectional view of the installed width of the drip weather strip, and FIG. S is a sectional view of the drip weather strip in its free state.

Claims (1)

[Claims] In a car body drip seal device that seals with a drip weather strip between the periphery of a car body opening and a door, the drip weather strip has a base portion that attaches to the periphery of the car body opening, and a base portion that extends from the base portion and extends from the inside of the door. A seal lip that comes into elastic contact with the membrane surface, the base and the peripheral edge of the vehicle body opening form a first rain gutter recess, and the seal lip and the base form a second rain gutter recess. A car body drip seal device characterized by: