JPH0580838U - Weather strip for vehicle door - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent rattling of the door glass, improve the seal, and prevent abnormal noise when the door glass moves up and down. [Structure] A base 12, an upper lip body 15, and a lower lip body 20 are integrally provided. The lower lip body 20 is the base body 1.
2 has a lip 21 piece extending upwardly from one side surface, and one end of the lip piece 21 is connected to the upper side surface of the lip piece 21 near the tip thereof, and the other end is between the upper lip body 20 and the lip piece 21. And a support piece 27 connected to one side surface, and formed into a hollow closed cross section. The lip piece 21 has a thin elastic deformable portion 22 formed near the base end thereof,
The lip body portion 23 of the lip piece 21 is formed in a thick-walled shape, and further, at the tip of the lip body portion 23, a seal head 24 in contact with the door glass surface is extended upward so as to be continuous with the lip body portion 23. There is.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a weather strip for a vehicle door.

[0002]

[Prior Art]

 Generally, a vehicle weather strip integrally includes a base body assembled to an upper edge portion of a door panel and both upper and lower lip bodies extending from one side surface of the base body. Both of these lip bodies are elastically deformed by being pressed against the door glass surface, and due to the elastic force based on the elastic deformation, the sealing property between the door glass and the upper edge of the door panel and the rattling of the door glass (lateral vibration) ) Preventive measures are taken. Therefore, the greater the elastic force due to the elastic deformation of both the upper and lower lips, the more effective the sealing property and the prevention of rattling of the door glass.

Conventionally, as shown in FIG. 5 and FIG. 6, in a weather strip 11 ′, a lower lip body 20 ′ that cannot be visually recognized from the outside is formed in a hollow closed cross section, and the lower lip body 20 is formed. There is an attempt to increase the elastic force of ´ and improve the sealing property and the prevention of rattling of the door glass.

[0004]

[Problems to be solved by the device]

 By the way, in the conventional one shown in FIGS. 5 and 6, the lower lip body 20 'is formed into a hollow closed cross section with a substantially uniform thickness, and the lower lip body 20' is formed of the door glass 4 '. It is elastically deformed into a flat shape while being pressed by the glass surface. For this reason, the contact area of the lower lip body 20 'with the glass surface becomes very large, and thus the surface of the lower lip body 20' is provided with the flocked hair 25 'for improving the slipperiness. When the door glass 4 ′ is opened / closed (elevated), the frictional force of the lower lip body 20 ′ against the glass surface becomes large, and there is a problem that a tongue (a creaking noise) is generated in the rain or immediately after a car wash.

In view of the above-mentioned conventional problems, an object of the present invention is to prevent rattling of the door glass and improve the sealing property, and also to prevent abnormal noise from occurring when the door glass is moved up and down. A weather strip for a vehicle door is provided.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the invention of claim 1 has a base body assembled to an upper edge portion of a door panel of a vehicle door, and an upper surface extending from one side surface of the base body in an upward inclined shape toward a door glass. A lip body and a lower lip body which is located below the upper lip body and protrudes from one side surface of the base body are integrally provided, and the lower lip body extends upward from one side surface of the base body. A lip piece; and a support piece having one end connected to a tip of an upper side surface of the lip piece and the other end connected to one side surface of the base between the upper lip body and the lip piece. Is formed in a hollow closed cross section, the support piece is formed in a curved shape protruding upward, and the lip piece is formed with a thin elastic deformable portion near the base end thereof. Furthermore, the lip body of the lip piece is formed in a thick-walled shape, At the tip of the body, the seal head, which contacts the glass surface of the door, extends upward from the lip body.

According to the second aspect of the present invention, there is provided a base body which is assembled to an upper edge portion of a door panel of a vehicle door, and an upper lip body which is inclined upward from one side surface of the base body toward the door glass. A lower lip body that is located below the upper lip body and protrudes from one side surface of the base body, and the lower lip body has a lip piece that extends upward from one side surface of the base body. A hollow portion, one end of which is coupled to the upper side surface of the lip piece near the tip and the other end of which is coupled to one side surface of the base body between the upper lip body and the lip piece. Each of the support pieces and the lip piece is formed with a thin-walled elastically deformable portion near the base end portion thereof, and the lip body of the lip piece is formed in a thick-walled shape. The tilt angle gradually increases from the base end side to the tip end side. It is formed in a larger curve, and at the tip of the lip body, a seal head, which is curved so that only the central part in the vertical direction contacts the surface of the door, extends continuously upward from the lip body. ing.

[0008]

[Action]

 In the weather strip for a vehicle door according to claim 1 configured as described above, when the weather strip is assembled to the upper edge of the door panel, the lower lip body has the lip piece elastically supporting the support piece. While being deformed, it is elastically deformed with the elastically deformable portion at the base end of the lip piece as a bending point. While the support piece is curved upward, the lip body of the lip piece is formed thick, so that the lower lip body is elastically deformed in a certain direction. In this way, by giving directionality to the deformation direction of the lower lip body and applying elastic force due to elastic deformation of the lip piece and the support piece to the seal head portion at the tip of the lip piece, only the seal head portion Presses against the door glass surface.

Further, in the vehicle door weather strip according to claim 2, in a state where the weather strip is assembled to the upper edge of the door panel, the lower lip body is such that the lip piece is elastic at the base end portion of the support piece. Since the elastic deformation portion at the base end of the lip piece is elastically deformed at the bending point while the elastic portion is elastically deformed at the bending point, the lower lip body is elastically deformed in a certain direction. Furthermore, the lip cylinder of the lip piece has a curved shape with an increasing inclination angle from the base end side toward the tip side, and the seal head extending from the tip of the lip cylinder has a vertical central portion. Only the central part of the seal head is pressed against the door glass surface when the contact angle of the lip piece with respect to the door glass surface is small because only the part is curved so as to contact the door glass surface.

[0010]

【Example】

 (Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. In FIG. 1, a weather strip 11 assembled to an upper edge flange 2 of a door panel 1 of a vehicle door by a mounting clip 3 integrally includes a base 12 and upper and lower lip bodies 15 and 25.

The base body 12 is formed by bending a metal plate into a substantially inverted U-shaped cross section, and the mounting clip 3 is fitted in the groove thereof. Both upper and lower lip bodies 15 and 20 are integrally formed with the elastomer layer 13 by extrusion molding on an elastomer layer 13 such as synthetic resin or rubber provided on one side surface of the base 12.

The upper lip body 15 extends upward from the upper portion of the elastomer layer 13 on one side surface of the base body 12 toward the door glass 4 in an upwardly inclined shape. Further, a thin elastic deformation portion 16 is formed on the base of the upper lip body 15, and the adhesive layer applied from the central portion of the lower inclined surface of the upper lip body 15 to the tip portion thereof is subjected to static electricity by nylon fiber / polyether. Flock 17 made of steal fibers or the like is applied.

The lower lip body 20 is provided with a lip piece 21 and a support piece 27 and has a hollow closed cross section. The lip piece 21 extends substantially parallel to the upper lip body 15 and extends upward from the lower portion of the elastomer layer 13 on one side surface of the base body 12. A thin elastic deforming portion 22 is formed near the base end of the lip piece 21, and the thickness gradually increases from the elastic deforming portion 22 to the lip body portion 23. Further, at the tip of the lip body portion 23 of the lip piece 21, a seal head portion 24 which is in contact with the glass surface of the door glass 4 is extended in an upwardly inclined shape which is continuous with the lip body portion 23.

In addition, on the lower inclined surface of the lip piece 21, the adhesive layer applied from a part of the elastically deformable portion 22 to the lip body portion 23 and the seal head portion 24 of the nylon fiber Flock 25 made of polyester fiber or the like is applied.

One end of the support piece 27 is connected to the boundary between the lip body portion 23 and the seal head portion 24 near the tip of the upper inclined surface of the lip piece 21, and the other end is connected to the upper lip body 15 and the lip. In a state where it is bonded to the elastomer layer 13 on one side surface of the base body 12 at a position approximately at the middle height with respect to the piece 21, it projects upward in a curved shape. Further, the thickness of the support piece 27 gradually decreases from both ends toward the top portion 28 in the central portion, and the top portion 28 has the minimum thickness.

The first embodiment is configured as described above. Therefore, in the state where the weather strip 11 is assembled to the upper edge flange 2 of the door panel 1 by the mounting clip 3, the upper and lower lip bodies 15 and 20 are elastically deformed with the elastically deformable portions 16 and 22 as bending points. Be transformed.

In particular, the lower lip body 20 is elastically deformed by the lip piece 21 elastically deforming the support piece 27 while the elastically deforming portion 22 at the base end portion of the lip piece 21 is a bending point. Furthermore, the support piece 27 has an upwardly curved shape, and the thickness gradually decreases from both ends toward the top portion 28, so that the top portion 28 has the minimum thickness, while the body portion 23 of the lip piece 21. Is thick, the lower lip body 20 is elastically deformed in a certain direction.

In this way, the lower lip body 20 is provided with directionality in the deformation direction, and the elastic force based on the elastic deformation of the lip piece 21 and the support piece 27 is exerted on the seal head 24, so that the seal head 24 By pressing only the portion 24 against the glass surface of the door glass 4, the sealability can be improved and the rattling of the door glass 4 can be reliably prevented.

Moreover, as shown in FIG. 2, in the state where the lower lip body 20 is elastically deformed, only the seal head 24 of the lower lip body 20 comes into contact with the glass surface of the door glass 4 and the other portions. Are not touched. Therefore, it is possible to reduce the frictional force of the lower lip body 20 against the glass surface as much as possible, and it is possible to prevent the generation of abnormal noise (scratching noise) when the door glass 4 is moved up and down in the rain or immediately after washing the car.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the second embodiment, in particular, the structure of the lower lip body 20 is changed. That is, of the lip piece 21 and the support piece 27 of the lower lip body 20 formed in the hollow closed cross section, the lip piece 21 is formed from the lower portion of the elastomer layer 13 on one side surface of the base body 12 to the thin elastic deformation portion 22. The lip body 23 of the lip piece 21 is formed to be thick. Further, the lip body portion 23 is formed in a curved shape in which the inclination angle is gradually increased from the base end side toward the tip end side.

At the tip of the lip body portion 23, a seal head 24 is extended upward, continuously with the lip body portion 23. As shown in FIG. 2, the seal head portion 24 is curved so that only the central portion in the vertical direction contacts the door glass surface of the door glass 4, and the tip portion thereof is rounded into a semicircular shape. Further, the lip body portion 23 and the seal head portion 24 of the lip piece 21 facing the glass surface of the windshield 4 are provided with flocked hair 25 made of nylon fiber, polyester fiber or the like in the same manner as in the first embodiment.

The support piece 27 has a substantially V-shaped cross section, and one end thereof is connected to the boundary portion between the lip body portion 23 and the seal head portion 24 near the tip of the upper side surface of the lip piece 21. The end is joined to the elastomer layer 13 on one side surface of the base body 12 at a portion located between the upper lip body 15 and the lip piece 21 and near the lip piece 21. Further, a thin elastic deformation portion 29 is formed on the base end portion of the support piece 27 (the side of the base body 12 that is joined to the elastomer layer 13). Since the other parts and members are substantially the same as those in the first embodiment, the same parts and members are designated by the same reference numerals, and the description thereof will be omitted.

The second embodiment is configured as described above. Therefore, in the state where the weather strip 11 is assembled to the upper edge flange 2 of the door panel 1 by the attachment clip 3, the upper and lower lip bodies 15 and 20 are elastic with the elastically deformed portions as the bending points of 16 and 22, respectively. Be transformed.

Particularly, in the lower lip body 20, while the lip piece 21 elastically deforms the support piece 27 with the elastic deformation portion 29 as a bending point, the elastic deformation portion 22 at the base end portion of the lip piece 21 serves as a bending point. Since it is elastically deformed, the lower lip body 20 is elastically deformed with a certain directionality.

In this way, the lower lip body 20 is provided with directionality in the deformation direction, and the elastic force based on the elastic deformation of the lip piece 21 and the support piece 27 is applied to the seal head 24, and the seal head 24 By pressing the portion 24 against the glass surface of the door glass 4, it is possible to improve the sealing property and surely prevent rattling of the door glass.

Further, the lip body portion 23 of the lip piece 21 has a curved shape in which the inclination angle is gradually increased from the base end side toward the tip end side, and is extended from the tip end of the lip body portion 23. Since the seal head 24 is curved so that only the concave portion at the central portion in the vertical direction contacts the glass surface of the door glass 4, the contact angle of the lip piece 21 with respect to the door glass surface is as shown in FIG. When θ is small, only the central portion of the seal head 24 is pressed against the door glass surface.

Therefore, the frictional force of the lower lip body 20 against the glass surface can be further reduced, and abnormal noise (especially when the door glass 4 is lowered or lifted immediately after raining or after washing the vehicle, particularly when the door glass 4 is lowered ( It is possible to further prevent the generation of a crackle sound.

[0028]

[Effect of the device]

 As described above, according to the present invention, the lower lip body is formed by the lip piece and the support piece to have a hollow closed cross section, and the deformation thereof has directionality to obtain a stable elastic force. It is possible to prevent backlash of the door glass and improve the sealing property. Moreover, when the lower lip body is elastically deformed, the contact area of the lower lip body with respect to the door glass surface can be made as small as possible by bringing only the seal head portion at the tip of the lip piece into contact with the door glass surface. It is possible to prevent the generation of abnormal noise when the door glass moves up and down in the rain or immediately after washing the car. Further, by making the contact angle of the lip piece with respect to the door glass surface small and pressing only the central portion of the seal head against the door glass surface, the frictional force of the lower lip body 20 with respect to the glass surface can be further reduced. Therefore, it is possible to further prevent generation of abnormal noise (creeping noise) even when the door glass 4 is moved up and down immediately after raining or after washing the car, particularly when the door glass 4 is lowered.

[Brief description of drawings]

FIG. 1 is a sectional view showing a weather strip according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state in which both upper and lower lip bodies of the weather strip are elastically deformed.

FIG. 3 is a sectional view showing a weather strip according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing a state in which both upper and lower lip bodies of the weather strip are elastically deformed.

FIG. 5 is a cross-sectional view showing a conventional weather strip.

FIG. 6 is a sectional view showing a state in which both upper and lower lip bodies of the weather strip are elastically deformed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door panel 11 Weather strip 12 Base material 15 Upper lip body 20 Lower lip body 21 Lip piece 22 Elastic deformation part 23 Lip body part 24 Seal head part 27 Support piece

Claims (2)

[Scope of utility model registration request] 1. A base body assembled to an upper edge portion of a door panel of a vehicle door, an upper lip body extending upwardly from one side surface of the base body toward a door glass, and a lower side of the upper lip body. And a lower lip body projecting from one side surface of the base body, the lower lip body includes a lip piece extending upward from one side surface of the base body and one end of the lip piece. The support piece is formed in a hollow closed cross-section, the support piece being connected to the tip of the upper side surface and the other end being connected to the one side surface of the base between the upper lip body and the lip piece. , The lip piece is formed in a curved shape projecting upward, while the lip piece is formed with a thin elastic deformation portion near the base end portion, and the lip body portion of the lip piece is formed thick Was
A weather strip for a vehicle door, characterized in that a seal head portion, which is in contact with the door glass surface, extends upwardly continuously from the lip body portion at the tip of the lip body portion. 2. A base body assembled to an upper edge portion of a door panel of a vehicle door, an upper lip body extending upwardly from one side surface of the base body toward a door glass, and a lower side of the upper lip body. And a lower lip body projecting from one side surface of the base body, the lower lip body includes a lip piece extending upward from one side surface of the base body and one end of the lip piece. An upper side surface and a supporting piece connected to one side surface of the base between the upper lip body and the lip piece, the other end of which is formed in a hollow closed cross section; A thin elastic deformation portion is formed near each base end portion with the lip piece, and further, the lip body portion of the lip piece is formed thick and extends from the base end side to the tip end side. It gradually formed into a curve with an increased inclination angle, For a vehicle, at the tip of the lip body, a seal head curved so that only the central portion in the vertical direction contacts the door glass surface is extended upward continuously with the lip body. Door weather strip.