JP6439656B2 - Door weather strip - Google Patents

Description

The present invention relates to a door weather strip for an automobile that seals between the door of the automobile and the periphery of the opening of the vehicle body.

As shown in FIG. 8, the seal between the door 1 of the automobile and the peripheral edge 6 of the vehicle body is a door weather strip 110 attached to the outer periphery of the door frame 2 provided on the outer peripheral portion of the door 1 and / or This is done by an opening weather strip attached to the flange at the periphery 6 of the vehicle body opening. The seal between the door glass 5 and the door 1 is made by a glass run attached to the channel 3 on the inner periphery of the door frame 2.

  Conventionally, as shown in FIG. 9, a door weather strip 110 attached to the outer periphery of the door frame 2 includes an attachment base portion 115, a hollow seal portion 116 integrally formed on the upper surface thereof, and a vehicle exterior side of the hollow seal portion 116. And a sealing lip portion 118 formed on the surface. The attachment base portion 115 is fitted into a retainer portion 155 having a U-shaped cross section attached to the outer peripheral portion of the door frame 2 and is fixed to the door frame 2. When the door is closed, the seal lip 118 abuts on the outermost side edge of the vehicle body opening periphery 6 and seals the gap between the outer peripheral edge of the door frame 2 and the vehicle body opening periphery 6.

  The corner portion 112 of the door weather strip 110 attached to the corner portion of the door frame 2 is formed by molding, and as shown in FIG. 10, the attachment base portion 115 attached to the door panel holding portion 2b and the attachment base portion 115 are integrated. A hollow seal portion 116 that is formed in contact with the peripheral edge 6 of the vehicle body opening and an extending portion 117 that extends from the root portion of the hollow seal portion 116 are formed.

The extending portion 117 is curved along the back surface of the door frame 2 and is in contact with the back surface of the door panel front end portion 2a at the corner portion of the door frame 2 to cover the door panel front end portion 2a and the door panel front end portion 2a and the door. The space between the weather strips 110 is sealed.
At the corner portion of the door frame 2, the channel 3 that holds the glass run 130 and the tip of the vertical side portion of the door frame 2 are fixed by welding. In this case, a door panel through-hole 2 c serving as a reference when welding the vertical side portions of the channel 3 and the door frame 2 is formed in the vertical side portion of the door frame 2.

  In this case, even if the tip of the extension portion 117 is in contact with the back surface of the door panel tip portion 2a, as shown by the arrow in FIG. 10, from between the tip of the extension portion 117 and the back surface of the door panel tip portion 2a. Noise such as wind noise enters and passes through the door panel through hole 2c, and enters the interior of the door and the passenger compartment from between the glass run 130 and the channel 3 and between the door panel tip 2a and the channel 3, and is quiet. Will be reduced.

As shown in FIG. 11, when the door weather strip 210 is attached to the door frame 2, the attachment base 215 is attached to the door frame 2 with the clip 219, and the hollow seal portion 216 is brought into contact with the peripheral edge 6 of the vehicle body opening. In addition, there is a type in which a protruding portion 217a is formed in an extending portion 217 extending from the hollow seal portion 216 and the protruding portion 217a is inserted into a door panel through hole 2c formed in the door frame 2 (see FIG. For example, see Patent Document 1.)
However, if the extending portion 217 and the protruding portion 217a are formed in a wide range, vibration due to wind may occur during traveling, and the protruding portion 217a may drop off or abnormal noise may occur.

JP 2012-51405 A

  It is an object of the present invention to provide an automobile door weather strip that is attached to a corner portion of a door frame and hardly generates noise or the like.

In order to solve the above-mentioned problem, the present invention of claim 1 is a door weather strip for attaching a door weather strip for sealing between the door of the automobile and the periphery of the vehicle body opening to the outer periphery of the door frame of the door.
Form a door panel through hole at the front edge of the door panel on the vertical side of the door frame,
The door weather strip consists of an upper side part attached to the upper side of the door frame, a vertical side part attached to the vertical side of the door frame, and a corner part connecting the upper side part and the vertical side part,
The vertical side portion of the corner portion includes a mounting base that is attached to the door panel of the door frame, a sealing portion that extends from the mounting base and seals between the periphery of the vehicle body opening and the door panel, and extends from the sealing portion or the mounting base. And an extension part that contacts the corner part of the door panel is formed,
An extension portion hole closing portion that covers the door panel through hole is formed in the extension portion, and a rigid member is disposed in a range including the extension portion hole closing portion, and engages with the door panel in the rigid member or the extension portion. The door weather strip is provided with an engaging member.

According to the first aspect of the present invention, a door panel through hole is formed at the tip of the vertical side portion of the door panel of the door frame. For this reason, when welding a door panel and a channel etc., positioning of welding can be performed by a door panel through-hole, welding work is easy, and a channel etc. can be reliably welded to a predetermined place.

The door weather strip is formed of an upper side portion attached to the upper side of the door frame, a vertical side portion attached to the vertical side of the door frame, and a corner portion connecting the upper side portion and the vertical side portion. For this reason, the upper side portion and the vertical side portion can be efficiently manufactured by extrusion molding, and the corner portion is formed by molding to form a door weather strip along the shape of the corner portion of the door and sealed. In addition, the upper side and the vertical side can be connected to seal the outer periphery of the door over the entire periphery.

The vertical side portion of the corner portion includes a mounting base that is attached to the door panel of the door frame, a sealing portion that extends from the mounting base and seals between the periphery of the vehicle body opening and the door panel, and extends from the sealing portion or the mounting base. An extension part is formed which comes out and contacts the corner part of the door panel. For this reason, when the attachment base is attached to the door panel of the door frame, the door weather strip is stable, the seal portion can be securely abutted against the periphery of the vehicle body opening, and the extension portion is the door panel of the corner portion. The seal and appearance of the corner portion can be improved by contacting the back surface of the tip portion. The seal portion can be formed in a hollow shape, but can also be formed in a lip shape.

Since the extension part hole closing part that covers the door panel through hole is formed in the extension part, when the extension part is attached to the door panel tip part, the extension part hole closing part can be closed, Noise or the like can be prevented from entering the door or the passenger compartment through the door panel through hole.

A rigid member is disposed in a range including the extended portion hole closing portion, and an engaging member that engages with the door panel is provided on the rigid member or the extended portion. For this reason, when the engaging member is attached to the door panel, the engaging member can urge the rigid member toward the door panel, and the rigid member can urge the extended portion hole closing portion to the door panel through hole. The extension hole blocking portion can reliably block the door panel through hole.

The present invention of claim 2 is a door weather strip in which an extension portion seal lip that contacts the periphery of the door panel through hole is formed on the surface of the extension portion hole closing portion that contacts the door panel through hole.

In the present invention of claim 2, the extension portion seal lip that contacts the periphery of the door panel through hole is formed on the surface of the extension portion hole closing portion that contacts the door panel through hole. For this reason, when the extension part hole closing part is pressed into the door panel through hole, the extension part seal lip comes into contact with the periphery of the door panel through hole and flexes flexibly so as to close the periphery of the door panel through hole. The gap between the hole and the extension hole closing portion can be reliably sealed to prevent noise and the like from flowing into the vehicle interior.

The present invention of claim 3 is the door weather strip in which the extension portion seal lip is pressed against the door panel by the rigid member.

In the present invention of claim 3, the extension portion seal lip is pressed against the door panel by the rigid member. For this reason, when the engagement member is engaged with the leading end portion, the rigid member presses the extension portion and the extension portion seal lip, and the extension portion seal lip strongly hits the periphery of the door panel through hole. In contact with each other, it is possible to bend and securely seal the space between the door panel through hole and the extension portion hole closing portion, thereby preventing noise and the like from entering the inside of the vehicle.

The present invention of claim 4 is a door weather strip in which an engaging member is integrally formed on a rigid member.

According to the fourth aspect of the present invention, since the engaging member is integrally formed with the rigid member, when the coupling member is attached to the door panel, the rigid member is engaged with the door panel, and the extended portion hole closing portion passes through the door panel. The hole can be pressed, and the extension hole closing portion can reliably block the door panel through hole.

According to a fifth aspect of the present invention, the extension portion is a door weather strip formed of a sponge material and the rigid member is formed of a synthetic resin.

In this invention of Claim 5, since the extension part was formed with sponge material, it can bend according to the shape of a door panel, it contacts a door panel flexibly, and an extension part hole obstruction part is a door panel through-hole. Can be blocked.
Since the rigid member is made of synthetic resin, it can be formed according to the shape of the extension part, and when it is attached to the door panel with the coupling member, the extension part hole closing part elastically presses the door panel through-hole. can do.

Since the extension part hole blocking part that covers the door panel through hole is formed in the extension part, noise or the like can be prevented from entering the door or the vehicle compartment through the door panel through hole.
Since the rigid member is arranged in a range including the extension part hole closing part and the engaging member that engages with the door panel is provided on the rigid member or the extension part, the rigid member penetrates the extension part hole closing part. The hole can be urged, and the extension hole closing portion can reliably close the door panel through hole.

It is sectional drawing of the horizontal direction of the vertical side part side of the corner part of the door weather strip which is embodiment of this invention, and is sectional drawing along the AA line in FIG. 2 and FIG. It is a top view of the corner part of the door weather strip which is embodiment of this invention. It is a perspective view of the back surface side of the corner part of the door weather strip which is embodiment of this invention. It is sectional drawing of the longitudinal direction of the part of the edge part of the corner part of the door weather strip which is embodiment of this invention, and is sectional drawing along the BB line in FIG. 2 and FIG. It is a reverse view of the insert member used for the corner part of the door weather strip which is embodiment of this invention. It is a side view of the insert member used for the corner part of the door weather strip which is embodiment of this invention. It is a top view of the whole door weather strip which is embodiment of this invention. It is a side view of a motor vehicle door. It is sectional drawing of the upper side part of the conventional door weather strip. It is sectional drawing by the side of the vertical side of the corner part of the other conventional door weather strip. It is sectional drawing of the vertical side part of the other conventional door weather strip.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 8 is a side view of the automobile. As shown in FIG. 8, on both the front side and the rear side, a door frame 2 is provided on the outer periphery of the upper part of the door 1 of the automobile, and a door glass 5 is attached so as to be movable up and down. That is, a door weather strip 10 is attached to the outer periphery of the door frame 2 to seal between the door 1 and the periphery 6 of the vehicle body opening. A corner portion 12 of the door weather strip 10 is attached to the corner portion of the door frame 2.

FIGS. 1-7 is a figure regarding the door weather strip 10 of embodiment of this invention, FIG. 7 is the front view of the whole door weather strip 10 of this invention.
1 to 4 are drawings of a corner portion of the door weather strip 10, and FIGS. 5 and 6 are views of an insert member 20 which is a rigid member embedded in the corner portion.

As shown in FIG. 7, the door weather strip 10 has a linear portion 11 composed of an upper side portion 13 and a vertical side portion 14 attached to the upper side and the vertical side of the door frame 2 and is formed into a long shape by extrusion molding. The portion of the corner portion 12 corresponding to the corner portion of the door frame 2 is formed by molding and connects the upper side portion 13 and the vertical side portion 14 simultaneously with the molding.

As shown in FIG. 2, the upper side portion 13 of the door weather strip 10 extends from the mounting base portion 15, the hollow seal portion 16 formed integrally with the mounting base portion 15, and the hollow seal portion 16 to the vehicle exterior side. The vehicle exterior seal lip 18 is formed.
The mounting base portion 15 is attached to the door panel of the door frame 2, the hollow seal portion 16 is in contact with the vehicle body opening peripheral edge 6, and the vehicle exterior seal lip 18 is on the vehicle exterior side than the portion with which the hollow seal portion 16 is in contact. Is in contact with the peripheral edge 6 of the vehicle body opening. The space between the door frame 2 and the vehicle body opening peripheral edge 6 is sealed by the hollow seal portion 16 and the vehicle outer side seal lip 18.

The vertical side portion 14 of the door weather strip 10 is formed by an attachment base portion 15 and a hollow seal portion 16 that is integrally formed from the attachment base portion 15.
The attachment base portion 15 is attached to the door panel of the door frame 2, and the hollow seal portion 16 is in contact with the vehicle body opening peripheral edge 6. A hollow seal portion 16 seals between the door frame 2 and the periphery 6 of the vehicle body opening.
In the corner portion 12 of the door weather strip 10, the upper base portion 13, the attachment base portion 15 of the vertical side portion 14, and the hollow seal portion 16 are continuously connected.

Next, the corner portion 12 of the door weather strip 10 will be described by taking the corner portion 12 on the rear side of the front door as an example.
As shown in FIGS. 2 and 3, the corner portion 12 of the door weather strip 10 is formed by molding and connects the upper side portion 13 and the vertical side portion 14. As shown in FIG. 1, the corner portion 12 includes an attachment base portion 15, a hollow seal portion 16, and an extension portion 17. Since the door weather strip 10 of the corner portion 12 is formed by molding, the whole is formed of a sponge material. As the sponge material, EPDM rubber or olefin-based thermoplastic elastomer is used. The upper side portion 13 and the vertical side portion 14 can all be formed of a sponge material.

The upper side portion 13 and the vertical side portion 14 are connected to the corner portion 12 in such a manner that the terminal portions of the upper side portion 13 and the vertical side portion 14 are sandwiched between the molds for forming the corner portion 12, A sponge material to be formed is injected to form the corner portion 12, and at the same time, the upper side portion 13 and the vertical side portion 14 are connected to the corner portion 12. In FIG. 2, the connection part of the upper side part 13 and the vertical side part 14, and the corner part 12 is shown with the connection line 12a.

As shown in FIG. 1, the attachment base 15 is formed in a flat plate shape, and a take-out hole for taking out an intermediate mold used at the time of mold forming is formed at the center. The attachment base portion 15 is held in contact with a door panel holding portion 2b formed on the door panel of the door frame 2. Both side portions of the mounting base portion 15 are formed with protrusions so as to abut against the door panel holding portion 2b and seal.
The side end of the mounting base portion 15 on the vehicle inner side covers the portion including the door panel holding portion 2b with the side end of the garnish 8 on the vehicle inner side. The garnish 8 on the inner side of the vehicle covers the bulging portion on the inner side of the door frame 2.

Hollow seal portions 16 are formed from side ends on both sides of the mounting base portion 15. When the door is closed, the hollow seal portion 16 contacts the vehicle body opening periphery 6 to seal between the vehicle body opening periphery 6 and the door frame 2. Since the hollow seal portion 16 is formed in a hollow shape, the hollow seal portion 16 can be flexibly bent along the shape of the periphery 6 of the vehicle body opening, and is brought into contact with the periphery 6 of the vehicle body opening with a predetermined pressure, thereby providing a sealing property. Can be secured. In the present embodiment, the hollow hollow seal portion 16 is formed, but a lip-shaped seal portion may be used.

An extending portion 17 is formed from the hollow seal portion 16 toward the door panel distal end portion 2 a of the door frame 2. An extending portion connecting portion 17 d is formed in a continuous portion of the extending portion 17 and the hollow seal portion 16. The extending portion 17 is formed to bend from the extending portion connecting portion 17d to the extending portion distal end portion 17c, and can cover a portion bent at a right angle from the panel holding portion 2b to the door panel distal end portion 2a.

In the present embodiment, the extending portion 17 is formed from the hollow seal portion 16, but the extending portion 17 can be formed from the side end of the attachment base portion 15.
The extension part front end part 17c at the front end of the extension part 17 is in contact with the back surface of the door panel front end part 2a and seals between the door weather strip 10 and the door panel front end part 2a.

An insert member 20 that is a rigid member is embedded in the extension portion 17.
As shown in FIGS. 5 and 6, the insert member 20 has a main body portion 21 and an attachment leg portion 22. A plurality of fixing holes 23 are formed in the main body 21. When the insert member 20 is embedded in the extension portion 17 when the corner portion 12 is molded, the fixing hole 23 has the extension portions 17 formed on both sides of the main body portion 21 as shown in FIG. The material of the extension part 17 that has entered the fixing hole 23 is connected, and both sides of the extension part 17 are fixed by the insert member 20, and the insert member 20 can be fixed inside the extension part 17.

As shown in FIGS. 3 and 6, the mounting leg portion 22 is formed in a clip shape and can function as an engaging member, and the rigid member and the engaging member can be integrally formed. As shown in FIG. 3, the extending portion 17 is embedded in the extending portion 17 so that the mounting leg portion 22 of the insert member 20 protrudes from the back surface of the extending portion 17.

As shown in FIG. 4, the mounting leg portion 22 can be inserted into a mounting hole formed in the door panel front end portion 2a to attach the extending portion 17 to the door panel front end portion 2a. Thereby, the attachment leg 22 can pull the main body 21 of the insert member 20 in the direction of the door panel front end 2 a, and the main body 21 presses the extended portion 17 against the door panel front end 2 a of the door frame 2. it can.

The insert member 20 that is a rigid member is preferably formed of a synthetic resin. In this case, the main body portion 21 of the insert member 20 can have rigidity for maintaining the shape of the extension portion 17, and the attachment leg portion 22 that is the engagement member is attached to the attachment hole of the door panel. The rigidity and elasticity can be ensured.
As the synthetic resin, polypropylene (PP), polyethylene (PE), polyamide (PA) or the like can be used.

  As shown in FIG. 1, at the corner portion of the door frame 2, the channel 3 that holds the glass run 30 and the door panel front end portion 2 a of the vertical side portion of the door panel of the door frame 2 are fixed by welding. In this case, a door panel through-hole 2 c serving as a reference when the channel 3 and the vertical side portion of the door panel are welded is formed in the vertical side portion of the door panel of the door frame 2. Thereby, the channel 3 can be welded to a predetermined position of the door panel.

In order to close the door panel through hole 2c, an extended portion hole closing portion 17a that covers the door panel through hole 2c is formed in the extended portion 17. As shown in FIG. 3, the extension hole closing portion 17 a is formed in a circular and flat shape so as to be in contact with the door panel through hole 2 c. The extension hole closing portion 17a can prevent noise or the like from entering the door or the vehicle compartment through the door panel through hole 2c.

As shown in FIGS. 1 and 3, a ring-shaped extending portion seal lip 17b that contacts the periphery of the door panel through hole 2c is formed on the outer periphery of the surface of the extending portion hole closing portion 17a that contacts the door panel through hole 2c. It is preferable. In this case, since the extension part seal lip 17b is formed in a lip shape, the extension part seal lip 17b comes into contact with the periphery of the door panel through hole 2c and flexes flexibly so that the door panel through hole 2c and the extension part hole are closed. The space between the portions 17a can be reliably sealed to prevent noise and the like from entering the vehicle inside.

As shown in FIG. 1, it is preferable to embed an insert member 20, which is a rigid member, in a range including the extended portion hole closing portion 17 a of the extended portion 17. In this case, as shown in FIG. 4, when the attachment leg portion 22 of the insert member 20 is inserted into the attachment hole formed in the door panel tip portion 2a, the extension portion 17 can be attached to the door panel tip portion 2a. The insert member 20 can be urged in the direction of the door panel tip 2a.

Then, the insert member 20 can urge the extension part hole closing part 17a and the extension part seal lip 17b to the door panel through hole 2c, and the extension part hole closing part 17a passes through the door panel as shown in FIG. The hole 2c can be reliably closed, and the extension portion seal lip 17b can be bent and adhered around the door panel through-hole 2c to reliably close the door panel through-hole 2c.

As shown in FIG. 1, a glass run 30 is attached to the channel 3 welded to the vertical side portion of the door frame 2.
The glass run 30 has a U-shaped cross section formed from the vehicle outer side wall 31, the vehicle inner side wall 32, and the bottom wall 33. The vehicle outer side wall 31 is formed with two vehicle outer side seal lips 34, and the vehicle inner side wall is formed. A vehicle interior seal lip 35 is formed at 32.

The side edge of the door glass 5 that slides between the vehicle exterior seal lip 34 and the vehicle interior seal lip 35 is sandwiched and sealed.
The tip of the garnish 8 on the outside of the vehicle contacts the vehicle outer side surface of the vehicle outer side wall 31, and the tip of the garnish 8 on the vehicle inner side contacts the vehicle inner side surface of the vehicle inner side wall 32.

DESCRIPTION OF SYMBOLS 1 Door 2 Door frame 2a Door panel front-end | tip part 2c Door panel through-hole 10 Door weather strip 15 Mounting base 16 Hollow seal part 17 Extension part 17a Extension part hole obstruction | occlusion part 17b Extension part seal lip 20 Insert member

Claims (5)

In a door weather strip that attaches a door weather strip that seals between the door of the automobile and the periphery of the vehicle body opening to the outer periphery of the door frame of the door,
Forming a door panel through-hole in the leading edge of the door panel on the vertical side of the door frame,
The door weather strip is composed of an upper side part attached to the upper side of the door frame, a vertical side part attached to the vertical side of the door frame, and a corner part connecting the upper side part and the vertical side part,
The vertical side portion of the corner portion includes a mounting base that is attached to the door panel of the door frame, a seal portion that extends from the mounting base and seals between the periphery of the vehicle body opening and the door panel, and the seal An extension part that extends from a part or the mounting base and contacts the corner part of the door panel,
An extension portion hole closing portion that covers the door panel through hole is formed in the extension portion, and a rigid member is disposed in a range including the extension portion hole closing portion, and the rigid member or the extension portion is disposed on the extension portion. An engagement member for engaging with the door panel is provided. The door weather strip according to claim 1, wherein an extension portion seal lip that contacts the periphery of the door panel through hole is formed on a surface of the extension portion hole blocking portion that contacts the door panel through hole. The door weather strip according to claim 2, wherein the extension portion seal lip is pressed against the door panel by the rigid member. The door weather strip according to any one of claims 1 and 3 , wherein the engagement member is integrally formed with the rigid member. 5. The door weather strip according to claim 1, wherein the extending portion is made of a sponge material, and the rigid member is made of a synthetic resin.

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