CA1177506A - Door weatherstrip - Google Patents
Door weatherstripInfo
- Publication number
- CA1177506A CA1177506A CA000385501A CA385501A CA1177506A CA 1177506 A CA1177506 A CA 1177506A CA 000385501 A CA000385501 A CA 000385501A CA 385501 A CA385501 A CA 385501A CA 1177506 A CA1177506 A CA 1177506A
- Authority
- CA
- Canada
- Prior art keywords
- door
- wall
- section
- edge
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Seal Device For Vehicle (AREA)
Abstract
TITLE:
Door Weather Strip ABSTRACT
A weather strip for an automobile door is in use mounted on an edge of the door to come into close contact with a door frame of the automobile when the door is closed, thereby providing a weather seal and preventing any foreign matter from entering into the automobile. The weather strip comprises a base section (5) which is to be mounted on the edge of the door and a hollow sealing section (6) integrally formed with and outstanding from the base section.
The hollow sealing section (6) comprises first and second side walls (8,9) joined by a convex top wall (10), and an integral projecting web (7) outstanding from the first side wall near its junction with the top wall. The hollow sealing section (6) deforms resiliently when the door is closed, with the projecting web (7) and first side wall (8) contacting a first edge (3a) of the door frame parallel to the plane of the door opening, and the domed or convex top wall (10) being deflected outwardly away from the base section (5) into sealing contact with an inwardly facing edge (3b) of the door frame. The outward deflection of the top wall (10) decreases its radius of curvature and increases its sealing efficiency.
Door Weather Strip ABSTRACT
A weather strip for an automobile door is in use mounted on an edge of the door to come into close contact with a door frame of the automobile when the door is closed, thereby providing a weather seal and preventing any foreign matter from entering into the automobile. The weather strip comprises a base section (5) which is to be mounted on the edge of the door and a hollow sealing section (6) integrally formed with and outstanding from the base section.
The hollow sealing section (6) comprises first and second side walls (8,9) joined by a convex top wall (10), and an integral projecting web (7) outstanding from the first side wall near its junction with the top wall. The hollow sealing section (6) deforms resiliently when the door is closed, with the projecting web (7) and first side wall (8) contacting a first edge (3a) of the door frame parallel to the plane of the door opening, and the domed or convex top wall (10) being deflected outwardly away from the base section (5) into sealing contact with an inwardly facing edge (3b) of the door frame. The outward deflection of the top wall (10) decreases its radius of curvature and increases its sealing efficiency.
Description
TITLE:
- ~ ~77506 Door Weather strip DESCRIPTION:
The invention relates to a weather strip to be attached to the peripheral edges of doors of automobiles. In such known weather strips when the door is closed a seal portion of the weather strip is brought into sealing contact with a frame of the door, formed for example by a body panel. In that case, however, a generally trianguIar spacing is formed between the seal portion and the body panel because the seal portion in general has a relatively large radius of curvature. Therefore, if during car washing etc. water is sprayed onto the car body at a high pressure, the water tends to enter the spacing and push open the seal portion of the weather strip thereby leaking into the inside of the door.
The present invention provides a door weather seal assembly, comprising a vehicle door in a door rame, and mounted to the door around the edge thereo~ an elastic rubber strip of uniform cross-section Eor providing a weather seal with the door frame on door closure, wherein the strip comprises a hollow sealing section outstanding from a base section, the hollow sealing section comprising first and second side walls joined by a convex outer wall, with an integral projecting flange outstanding from the first side wall adjacent its connection with the convex outer wall, the shape of the hollow sealing section being such that it deforms when the vehicle door is closed, with
- ~ ~77506 Door Weather strip DESCRIPTION:
The invention relates to a weather strip to be attached to the peripheral edges of doors of automobiles. In such known weather strips when the door is closed a seal portion of the weather strip is brought into sealing contact with a frame of the door, formed for example by a body panel. In that case, however, a generally trianguIar spacing is formed between the seal portion and the body panel because the seal portion in general has a relatively large radius of curvature. Therefore, if during car washing etc. water is sprayed onto the car body at a high pressure, the water tends to enter the spacing and push open the seal portion of the weather strip thereby leaking into the inside of the door.
The present invention provides a door weather seal assembly, comprising a vehicle door in a door rame, and mounted to the door around the edge thereo~ an elastic rubber strip of uniform cross-section Eor providing a weather seal with the door frame on door closure, wherein the strip comprises a hollow sealing section outstanding from a base section, the hollow sealing section comprising first and second side walls joined by a convex outer wall, with an integral projecting flange outstanding from the first side wall adjacent its connection with the convex outer wall, the shape of the hollow sealing section being such that it deforms when the vehicle door is closed, with
2 ? .~ 7750 6 the first side wall and the projecting flanye contacting a first edge of the door frame parallel to the plane of the door opening, and the convex outer wall contacting an inwardly facing edge of the door frame that is generally perpendicuIar to the first edge.
The weather strip o the invention is able to provide a reliable sealing when the door is closed, since the top wall is deflected outwardly, away from the base section, on door closure so that the radius of curvature of the convex top wall tends to decrease, thereby increasing its sealing efficiency. The shape of the top wall is preferably domed or ridged, with the outermost part of the dome or the line of the ridge providing the seal with the inwardly facing edge of the door frame.
The reference herein to the plane of the door opening is to be interpreted in the context of motor vehicle doors which are frequently contoured and therefore not truly planar. The term is however sufficient to define~
I !77506 --3~
the pair of edges of the door ~rame with which the weather strip cooperates in use.
DRAWINGS:
Figure l is a side elevation of an automobile provided with a door weather strip according to the present invention;
Figure 2 is an enlarged cross-sectional view of a weather strip according to the present invention;
Figure 3 is a cross-sectional view taken along the line III-III of Figure 1 showing how the weather strip is deformed into sealing engagement with the door frame when the door is closed; and Figure 4 is a section similar to Figure 2 but through another embodiment of khe present invention.
Referring first to Figure 1, an automobile door 1 is provided to close a door opening in a door frame defined by body panels 3. A weather strip 4 is provided around the door edge as shown in more detail in Figure 2 or 4.
Referring to Figure 2, the weather strip 4 is a rubber extrusion that is secured around an edge 2 of ~ ~77~0~;
the door 1. The weather strlpi4 comprises a base section 5 and a sealing section 6, o which the iatter has a sectional shape comprising a first wall 8 which overhangs towards the interior of the - 5 automobile when mounted in place, and a second wall 9, both walls being outstanding from the base section 5.
A convex top wall 10 with a generally central ridge 13 connects the upper ends of the walls 8 and 9.
The first wall B, at its outermost end where it is connected to the top wall 10, has ormed thereon an integral outstanding projecting web 7 which forms a continuation of the first wall inclined outwardly from the base section S and inwardly towards the interior of the automobile. - The zones of connection, marked 11 and 12 respectively, between the top 10 and the second and first walls 9 and 8 are each ormed with an internal angled or bent shape 14. A similar internal angle 14 is formed keneaththe ridge 13 of the top wall 10.
Thus, the base section 5 of the weather strip 4 is fitted to the peripheral edge 2 of the door l, and when the door 1 is closed the sealing section 6 is brought into sealing contact with the body panel 3. When - the sealing section 6 makes sealing contact with the body panel, the whole o the exterior, inwardly acing surfaces of the web 7 and the first wall 8 are ~ i77506 brought into sealing contact with a vertical edge 3a of the panel 3, being an edge that is parallel to the plane of the door opening. The ridge 13 o the top wall 10 is deformed outwardly from the base section 5 and brought into sealing contact with an edge 3b of the panel 3, generally perpendicular to the edge 3a.
Therefore, eve~ if a spray or jet of water strikes against the sealing section 6 as shown by an arrow A
in Figure 3, it is blocked first by the convex ridged top wall 10, and if water at high pressure does pass between the ridye 13 and the edge 3b of the panel 3, the web 7 and the first wall 8 which are in sealing contact wi~h the edge 3a of the panel 3 will prewent the wa~er from passing to the inside o~ the door 1.
The reason ls that the web 7 has a small radius of curvature at its leading end, and the pressure of any water that lies in the extremely limited space between the edges 3a and 3b cannot become high - 20 enough to push open the first wall 8.
In addition, the generation of wind noise is reduced by the sealing effect of the ridge 13.
Furthermore, because the irst wall 8 extends outwardly from the base section 5 and overhangs towards the interior of the automobile, and because . ~ 7 7~ V ~;
of the bend 14 formed in the zon~e of connection 12 be~ween the first wall 8 and top wall 10, any movement in use of the top wall 10 is accompanied by flexure at the bend ~. Therefore, there is in use substantially no vertical or transverse displacement of the first wall 8 from the normal position shown.
One advantageous feature of the weather strip 4 of Figure 2 is that as the door i5 closed and the strip 4 comes into contact with the body panel 3, the bias exerted by the weather strip on the door panel as it deforms to the condition of Figure 3 is relatively small or limited so that the door can be completely closed with a small force applied thereto and can maintain its satisfactory water-tightness.
15Referring to Figure 4, there i5 shown another embodiment of aweather strip according to the present invention. This embodiment is in all respects similar to that of Figure 2 except that a groove 15 is f~rmed along the line of each of the bends ~ of the Figure 2 embodiment, each groove lS being formed internally of the sealing section 6. The formation of the grooves 15 allows the sealing section 6 to be ~ deformed more readily than in the first embodiment.
The weather strip o the invention is able to provide a reliable sealing when the door is closed, since the top wall is deflected outwardly, away from the base section, on door closure so that the radius of curvature of the convex top wall tends to decrease, thereby increasing its sealing efficiency. The shape of the top wall is preferably domed or ridged, with the outermost part of the dome or the line of the ridge providing the seal with the inwardly facing edge of the door frame.
The reference herein to the plane of the door opening is to be interpreted in the context of motor vehicle doors which are frequently contoured and therefore not truly planar. The term is however sufficient to define~
I !77506 --3~
the pair of edges of the door ~rame with which the weather strip cooperates in use.
DRAWINGS:
Figure l is a side elevation of an automobile provided with a door weather strip according to the present invention;
Figure 2 is an enlarged cross-sectional view of a weather strip according to the present invention;
Figure 3 is a cross-sectional view taken along the line III-III of Figure 1 showing how the weather strip is deformed into sealing engagement with the door frame when the door is closed; and Figure 4 is a section similar to Figure 2 but through another embodiment of khe present invention.
Referring first to Figure 1, an automobile door 1 is provided to close a door opening in a door frame defined by body panels 3. A weather strip 4 is provided around the door edge as shown in more detail in Figure 2 or 4.
Referring to Figure 2, the weather strip 4 is a rubber extrusion that is secured around an edge 2 of ~ ~77~0~;
the door 1. The weather strlpi4 comprises a base section 5 and a sealing section 6, o which the iatter has a sectional shape comprising a first wall 8 which overhangs towards the interior of the - 5 automobile when mounted in place, and a second wall 9, both walls being outstanding from the base section 5.
A convex top wall 10 with a generally central ridge 13 connects the upper ends of the walls 8 and 9.
The first wall B, at its outermost end where it is connected to the top wall 10, has ormed thereon an integral outstanding projecting web 7 which forms a continuation of the first wall inclined outwardly from the base section S and inwardly towards the interior of the automobile. - The zones of connection, marked 11 and 12 respectively, between the top 10 and the second and first walls 9 and 8 are each ormed with an internal angled or bent shape 14. A similar internal angle 14 is formed keneaththe ridge 13 of the top wall 10.
Thus, the base section 5 of the weather strip 4 is fitted to the peripheral edge 2 of the door l, and when the door 1 is closed the sealing section 6 is brought into sealing contact with the body panel 3. When - the sealing section 6 makes sealing contact with the body panel, the whole o the exterior, inwardly acing surfaces of the web 7 and the first wall 8 are ~ i77506 brought into sealing contact with a vertical edge 3a of the panel 3, being an edge that is parallel to the plane of the door opening. The ridge 13 o the top wall 10 is deformed outwardly from the base section 5 and brought into sealing contact with an edge 3b of the panel 3, generally perpendicular to the edge 3a.
Therefore, eve~ if a spray or jet of water strikes against the sealing section 6 as shown by an arrow A
in Figure 3, it is blocked first by the convex ridged top wall 10, and if water at high pressure does pass between the ridye 13 and the edge 3b of the panel 3, the web 7 and the first wall 8 which are in sealing contact wi~h the edge 3a of the panel 3 will prewent the wa~er from passing to the inside o~ the door 1.
The reason ls that the web 7 has a small radius of curvature at its leading end, and the pressure of any water that lies in the extremely limited space between the edges 3a and 3b cannot become high - 20 enough to push open the first wall 8.
In addition, the generation of wind noise is reduced by the sealing effect of the ridge 13.
Furthermore, because the irst wall 8 extends outwardly from the base section 5 and overhangs towards the interior of the automobile, and because . ~ 7 7~ V ~;
of the bend 14 formed in the zon~e of connection 12 be~ween the first wall 8 and top wall 10, any movement in use of the top wall 10 is accompanied by flexure at the bend ~. Therefore, there is in use substantially no vertical or transverse displacement of the first wall 8 from the normal position shown.
One advantageous feature of the weather strip 4 of Figure 2 is that as the door i5 closed and the strip 4 comes into contact with the body panel 3, the bias exerted by the weather strip on the door panel as it deforms to the condition of Figure 3 is relatively small or limited so that the door can be completely closed with a small force applied thereto and can maintain its satisfactory water-tightness.
15Referring to Figure 4, there i5 shown another embodiment of aweather strip according to the present invention. This embodiment is in all respects similar to that of Figure 2 except that a groove 15 is f~rmed along the line of each of the bends ~ of the Figure 2 embodiment, each groove lS being formed internally of the sealing section 6. The formation of the grooves 15 allows the sealing section 6 to be ~ deformed more readily than in the first embodiment.
Claims (7)
1. A door weather seal assembly, comprising a vehicle door in a-door frame, and mounted to the door around the edge thereof an elastic rubber strip of uniform cross-section for providing a weather seal with the door frame on door closure, wherein the strip comprises a hollow sealing section outstanding from a base section, the hollow sealing section comprising first and second side walls joined by a convex outer wall, with an integral projecting flange outstanding from the first side wall adjacent its connection with the convex outer wall, the shape of the hollow sealing section being such that it deforms when the vehicle door is closed, with the first side wall and the projecting flange contacting a first edge of the door frame parallel to the plane of the door opening, and the convex outer wall contacting an inwardly facing edge of the door frame that is generally perpend-icular to the first edge.
2. An assembly according to claim 1, wherein the deformation of the hollow sealing section when the vehicle door is closed is such as to decrease the radius of curvature of the convex portion, and to extend a central ridge portion of the convex portion further from the base portion than when the strip is in a relaxed state.
3. An assembly according to claim 1 or claim 2, wherein the interior wall of the hollow sealing section is formed with internal angular or curved zones between the first side wall and the convex outer wall, between the second side wall and the convex outer wall and along an apex of the convex outer wall.
4. An assembly according to claim 1 or claim 2, wherein the interior wall of the hollow sealing section is formed with longitudinal grooves between the first side wall and the convex outer wall, between the second side wall and the convex outer wall, and along an apex of the convex outer wall.
5. A weather-strip for an automobile door composed of an elastic rubber-like material and of a uniform cross sectional shape throughout its length and adapted to be mounted on an edge of the door and closely contact with a body of the automobile when the door is closed, said body having a first section parallel to the plane of the door opening and a second section generally perpendicular to said first section, said weather-strip comprising:
a base section adapted to be mounted on the edge of the door; and a hollow seal section integrally formed with said base section;
said hollow seal section comprising;
a first wall projecting from said base section and having a sealing surface formed thereon;
a protrusion continually and integrally formed with said first wall, said protrusion having a sealing surface formed thereon;
a second wall projecting from said base section; and a convex top wall integrally formed with said first and second walls, said top wall having a ridge formed therein, said hollow seal section having first, second and third bends between said first wall and said top wall, said second wall and said top wall, and at the ridge of said top wall, respectively; wherein said seal section is adapted to collapse when the door is closed in such a way that the sealing surfaces of said first wall and said protrusion are brought into a press contact with the first section of said body and the ridge of said top wall is brought into a press contact with the second section of said body.
a base section adapted to be mounted on the edge of the door; and a hollow seal section integrally formed with said base section;
said hollow seal section comprising;
a first wall projecting from said base section and having a sealing surface formed thereon;
a protrusion continually and integrally formed with said first wall, said protrusion having a sealing surface formed thereon;
a second wall projecting from said base section; and a convex top wall integrally formed with said first and second walls, said top wall having a ridge formed therein, said hollow seal section having first, second and third bends between said first wall and said top wall, said second wall and said top wall, and at the ridge of said top wall, respectively; wherein said seal section is adapted to collapse when the door is closed in such a way that the sealing surfaces of said first wall and said protrusion are brought into a press contact with the first section of said body and the ridge of said top wall is brought into a press contact with the second section of said body.
6. A weather-strip for an automobile door as recited in claim 5 wherein there are formed first, second and third longitudinal grooves in and around said first, second and third bends, respectively.
7. A door seal assembly for an automobile, comprising:
a door;
a body panel for receiving said door, said body panel having a first edge parallel to the plane of the door opening and a second edge which is generally perpendicular to the first edge; and a weather-strip comprising an elastic rubbery strip of uniform cross-section for mounting around an edge of said door, said weather-strip comprising:
a base section mounted on the edge of said door;
a hollow seal section outstanding from said base section;
said hollow seal section comprising:
a first wall outstanding from said base section and having a sealing surface formed thereon;
a second wall outstanding from said base section;
a protrusion continuously and integrally formed with said first wall, said protrusion having a sealing surface formed thereon; and a convex top wall interconnecting said first and second walls, said top wall having a ridge formed therein, said hollow seal section having first, second and third bends between said first and top walls, said second and top walls, and at the ridge of said top wall, respectively; wherein said seal section is adapted to collapse when the door is closed in such a way that the sealing surfaces of said first wall and said protrusion are brought into sealing contact with the first edge of said body panel and the ridge of-said top wall is brought into a sealing contact with the second edge of said body panel.
a door;
a body panel for receiving said door, said body panel having a first edge parallel to the plane of the door opening and a second edge which is generally perpendicular to the first edge; and a weather-strip comprising an elastic rubbery strip of uniform cross-section for mounting around an edge of said door, said weather-strip comprising:
a base section mounted on the edge of said door;
a hollow seal section outstanding from said base section;
said hollow seal section comprising:
a first wall outstanding from said base section and having a sealing surface formed thereon;
a second wall outstanding from said base section;
a protrusion continuously and integrally formed with said first wall, said protrusion having a sealing surface formed thereon; and a convex top wall interconnecting said first and second walls, said top wall having a ridge formed therein, said hollow seal section having first, second and third bends between said first and top walls, said second and top walls, and at the ridge of said top wall, respectively; wherein said seal section is adapted to collapse when the door is closed in such a way that the sealing surfaces of said first wall and said protrusion are brought into sealing contact with the first edge of said body panel and the ridge of-said top wall is brought into a sealing contact with the second edge of said body panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000385501A CA1177506A (en) | 1981-09-09 | 1981-09-09 | Door weatherstrip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000385501A CA1177506A (en) | 1981-09-09 | 1981-09-09 | Door weatherstrip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1177506A true CA1177506A (en) | 1984-11-06 |
Family
ID=4120910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000385501A Expired CA1177506A (en) | 1981-09-09 | 1981-09-09 | Door weatherstrip |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1177506A (en) |
-
1981
- 1981-09-09 CA CA000385501A patent/CA1177506A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |