Seal for a motor vehicle door
By designing water inlets, drain outlets, and guide sections into the vehicle door seals, the problem of water spilling onto the locking parts is solved, achieving better sealing and waterproofing effects and reducing the risk of freezing and rusting at the locking parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NISHIKAWA RUBBER CO LTD
- Filing Date
- 2021-09-10
- Publication Date
- 2026-06-23
AI Technical Summary
Existing vehicle door seals are prone to freezing or rusting at the locking point due to water spillage, and water can also leak out from the core extraction hole in the hollow part, causing damage to the locking point.
A sealing component for motor vehicle doors is designed, including a longitudinal edge sealing part with a water inlet, a water outlet, and a guide part. The water flow is guided to the inside of the vehicle interior through a mold forming part to prevent water from flowing into the locking part. A guide part and a protrusion are provided on the core extraction hole to prevent water from flowing out.
It effectively prevents water from splashing onto the locking parts, improving the door's sealing and waterproofing performance, and reducing the risk of icing and rusting on the locking parts.
Smart Images
Figure CN114161917B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a sealing element for a motor vehicle door, which is installed in the door of a motor vehicle. Background Technology
[0002] Currently, vehicle doors are fitted with sealing elements for sealing the door opening to the vehicle body (see, for example, Patent Documents 1 and 2). The sealing element in Patent Document 1 is elongated in the vertical direction and is installed at the rear end of the door. An upper opening is formed at the upper end of the sealing element, and a drain outlet is formed at the lower end. Furthermore, the sealing element has a hollow portion that extends continuously from the upper opening to the drain outlet. This sealing element allows water that has seeped between the upper end of the door and the vehicle body to be guided from the upper opening of the sealing element to the hollow portion and discharged from the drain outlet.
[0003] Furthermore, the seal in Patent Document 2 includes a mounting base installed on a vehicle door and a hollow sealing portion. This seal has a molded portion formed by an opening and closing action, and a core extraction hole is formed in the molded portion for extracting a core used during the molding of the inner surface of the hollow sealing portion.
[0004] Existing technical documents
[0005] Patent documents
[0006] Patent Document 1: International Publication No. 2015 / 072558
[0007] Patent Document 2: Japanese Patent Application Publication No. 4-151330 Summary of the Invention
[0008] The technical problem that the invention aims to solve
[0009] However, there is a locking mechanism on the door, located below the window frame, to keep the door closed. If water spills onto the locking mechanism, it may become impossible to unlock when it freezes, and it may also cause rust.
[0010] Since the seal of Patent Document 1 has an upper opening at the upper end, water that has entered between the upper end of the door and the body can be guided to the upper opening and then guided from the hollow part through the drain to a position lower than the locking part, thereby preventing water from splashing onto the locking part.
[0011] However, the portion of the seal from the upper opening to the hollow part in Patent Document 1 is difficult to extrude, so it must be molded into a die-forming part. When forming the die-forming part, since a core is required as disclosed in Patent Document 2, a core extraction hole must inevitably be made in the die-forming part. Therefore, it can be assumed that water introduced into the upper opening will flow out through the core extraction hole while passing through the hollow part, resulting in water spilling onto the locking part.
[0012] The present invention was made in view of such problems, and its purpose is to prevent water that has seeped into the upper part of the car door and between the car body from splashing onto the door lock.
[0013] Solutions for solving technical problems
[0014] To achieve the above objective, a first solution is a vehicle door seal installed on a door that opens and closes to a door opening formed on the side of a vehicle body, and sealing the door opening and the door. The vehicle door seal includes a longitudinal edge sealing portion, which has: a mounting plate portion extending vertically along the longitudinal edge of a window frame of the door and mounted thereon; and a peripheral wall portion integrally formed on the mounting plate portion and extending vertically along the longitudinal edge of the window frame. The upper part of the longitudinal edge sealing portion has a water inlet, which is connected to the sealing portion formed by the mounting plate portion and the... The hollow portion formed by the peripheral wall portion is connected. The lower part of the longitudinal edge sealing portion has a drain outlet located below the locking portion of the door and connected to the hollow portion. The portion of the longitudinal edge sealing portion from the portion having the water inlet to the upper part of the hollow portion is a mold forming portion. The mold forming portion has a core extraction hole that opens further outward from the vehicle exterior than the mounting plate portion. The core extraction hole is used to extract the core used during molding. A guide portion is provided on the inner surface of the mold forming portion at a position above the core extraction hole. The guide portion guides the water flowing in from the water inlet further into the vehicle interior than the core extraction hole.
[0015] For example, when closing a car door, water often seeps in from between the upper part of the door and the car body. The water flows from the inlet of the longitudinal edge seal into the hollow part and downwards, and is discharged from the drain outlet located lower than the door lock part, thus making it difficult for water to spill onto the lock part.
[0016] Furthermore, the water flowing in from the inlet is guided to a position inside the vehicle interior than the center core extraction hole by the guide part located above the center core extraction hole, making it difficult for the water to flow towards the center core extraction hole and inhibiting its outflow. This also makes it difficult for water to spill onto the locking part.
[0017] In the second embodiment, the guide portion is a plate-shaped part integrally formed on the outer side of the vehicle exterior in the inner surface of the mold forming portion and extending toward the inner side of the vehicle interior.
[0018] According to this structure, when water flows in from the inlet, it reaches the upper surface of the guide section. Since the guide section extends towards the interior of the vehicle, the water that reaches the upper surface of the guide section is reliably guided towards the interior of the vehicle, thereby further improving the suppression effect of water outflow from the central extraction hole.
[0019] In the third embodiment, the guide portion extends further in the vehicle's longitudinal direction, and an upwardly projecting protrusion extending in the vehicle's longitudinal direction is formed at the end of the guide portion inside the vehicle interior. The rear end of the protrusion is separate from the inner surface of the mold forming portion.
[0020] According to this structure, since the protrusion functions like a so-called dam, water reaching the upper surface of the guide is guided in the longitudinal direction of the vehicle. Furthermore, because the rear end of the protrusion is separated from the inner surface of the hollow section, water flows from behind the protrusion to a position closer to the interior of the vehicle than the core extraction hole, making it difficult for water to reach the core extraction hole.
[0021] The fourth solution is a vehicle door seal installed on a door that opens and closes to a door opening formed on the side of a vehicle body, and seals the door opening with the door. The vehicle door seal includes a longitudinal edge sealing portion, which has: a mounting plate portion extending vertically along the longitudinal edge of a window frame of the door and mounted thereon; and a peripheral wall portion integrally formed on the mounting plate portion and extending vertically along the longitudinal edge of the window frame. The upper part of the longitudinal edge sealing portion has a water inlet communicating with a hollow portion formed by the mounting plate portion and the peripheral wall portion. The lower part of the longitudinal edge sealing portion has a drain outlet located below the locking portion of the door and communicating with the hollow portion. The portion of the longitudinal edge sealing portion from the portion having the water inlet to at least the upper part of the hollow portion is a mold forming portion. The mold forming portion has a core extraction hole that opens further outward than the mounting plate portion. The core extraction hole is used to extract the core used during molding. The inner surface of the mold forming portion has a protrusion that extends from a position above the core extraction hole to a position below the upper end of the core extraction hole. The protrusion guides the water flowing in from the water inlet further into the interior of the vehicle than the core extraction hole.
[0022] For example, when closing a car door, water often seeps in from between the upper part of the door and the car body. The water flows from the inlet of the longitudinal edge seal into the hollow part and downwards, and is discharged from the drain outlet located lower than the door lock part, thus making it difficult for water to spill onto the lock part.
[0023] In addition, the water flowing in from the inlet is guided through the protrusion to a position inside the vehicle interior that is closer to the center core extraction hole, making it difficult for the water to flow toward the center core extraction hole and inhibiting its outflow. This also makes it difficult for water to spill onto the locking part.
[0024] In the fifth embodiment, the upper end of the protruding part is positioned outside the vehicle body inside the mold forming part.
[0025] According to this structure, water flowing from the inlet to the outside of the vehicle is guided to the inside of the vehicle through the protrusion, making it difficult to reach the core extraction hole.
[0026] In the sixth embodiment, the core extraction hole is a slit-shaped structure that extends in the vertical direction, and the lower part of the protrusion that is lower than the upper end of the core extraction hole extends along the core extraction hole in the vertical direction at a position closer to the interior of the vehicle than the core extraction hole.
[0027] According to this structure, when the core extraction hole is a slit-shaped structure that is long in the vertical direction, it is possible to suppress the outflow of water throughout the entire range of the core extraction hole from the top to the bottom.
[0028] In the seventh embodiment, the sealing element for the vehicle door includes an upper sealing portion extending along the upper edge of the window frame in the vehicle's longitudinal direction. The longitudinal sealing portion is integrally formed at the rear end of the upper sealing portion. The upper sealing portion is provided with: an outer sealing lip disposed on the exterior of the vehicle and extending in the vehicle's longitudinal direction, which elastically contacts the vehicle body when the door is closed; and an inner sealing lip disposed separately from the outer sealing lip on the interior of the vehicle and extending in the vehicle's longitudinal direction, which elastically contacts the vehicle body when the door is closed. A water guide groove is formed between the outer sealing lip and the inner sealing lip, which allows water that has seeped in from between the outer sealing lip and the vehicle body to flow toward the rear of the vehicle. The water inlet communicates with the rear of the water guide groove.
[0029] According to this structure, when the door is closed, the outer and inner sealing lips of the upper sealing part elastically contact the vehicle body. At this time, because the outer and inner sealing lips are spaced apart in the direction between the interior and exterior of the vehicle, they are prone to warping and deformation. Therefore, compared to the case where the hollow sealing elements are in elastic contact, the reaction force acting on the door at the moment of closing is reduced. Consequently, the door sealing performance becomes better.
[0030] Furthermore, when the door is closed, although the outer and inner sealing lips of the upper sealing part are in elastic contact with the vehicle body, water often seeps in from between the upper part of the door and the vehicle body. The seeping water flows towards the rear of the vehicle through the water guide channel between the outer and inner sealing lips. The water flowing towards the rear of the vehicle in the water guide channel can be discharged from the water inlet formed at the upper part of the longitudinal edge seal.
[0031] Invention Effects
[0032] As explained above, according to this solution, since water that has seeped into the upper part of the door and the body can be directed to a position lower than the door's locking part for drainage, it is difficult for water to spill onto the door's locking part. Attached Figure Description
[0033] Figure 1 This is a partial right-side view of the vehicle body according to an embodiment of the present invention.
[0034] Figure 2 This is a side view of the right front door of the vehicle body, as seen from the interior of the vehicle.
[0035] Figure 3 This is a side view of the vehicle door seal installed on the aforementioned right front door, as seen from inside the vehicle.
[0036] Figure 4 This is a side view of the upper and rear side of the sealing element for a vehicle door, viewed from inside the vehicle.
[0037] Figure 5 This is a side view of the upper and rear of the right front door, which is equipped with a vehicle door seal, as seen from inside the vehicle.
[0038] Figure 6 This is a diagram showing the upper part of the vehicle door seal, which is installed on the window frame, as viewed from the rear of the vehicle.
[0039] Figure 7 This is a perspective view of the upper and rear side of the right front door, which is equipped with a vehicle door seal, as seen from an obliquely upper view inside the vehicle.
[0040] Figure 8 yes Figure 5 The cross-sectional view of line VIII-VIII in the diagram.
[0041] Figure 9 yes Figure 5 The cross-sectional view of the IX-IX line in the diagram.
[0042] Figure 10 This is a view of the rear side of a vehicle door seal as seen from above.
[0043] Figure 11 yes Figure 5 The XI-XI line cross-section diagram.
[0044] Figure 12 yes Figure 5 Cross-sectional view of line XII-XII in the diagram. Detailed Implementation
[0045] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the following description of preferred embodiments is merely illustrative and is not intended to limit the present invention, its application, or its uses.
[0046] Figure 1 This is a partial right-side view of the vehicle body 101 of a motor vehicle 100 according to an embodiment of the present invention. The motor vehicle 100 is a passenger vehicle, and is equipped with a driver's seat, a front passenger seat, and rear seats in the vehicle interior. In the description of this embodiment, the front side of the vehicle is simply referred to as the front, and the rear side of the vehicle is simply referred to as the rear.
[0047] (Structure of vehicle body 101)
[0048] A right side beam 105 extending in the longitudinal direction is provided on the lower right side of the vehicle body 101. A right front pillar 110, a right middle pillar 111, and a right rear pillar 112 are provided on the right side of the vehicle body 101, extending upwards from the right side beam 105. A top 120 is provided on the upper part of the vehicle body 101, extending from the upper end of the right front pillar 110, through the upper end of the right middle pillar 111, to the upper end of the right rear pillar 112. Using these structures, a front door opening 102 is formed on the front side of the right side of the vehicle body 101, defined by the right side beam 105, the right front pillar 110, the right middle pillar 111, and the top 120. Additionally, a rear door opening 103 is formed on the front side of the right side of the vehicle body 101, defined by the right side beam 105, the right middle pillar 111, the right rear pillar 112, and the top 120. The front door opening 102 is formed by… Figure 2 The front door 200 shown is opened and closed. Additionally, the rear door opening 103 is... Figure 1 The rear door 300 shown is opened and closed.
[0049] On the front surface of the right center pillar 111, a latch eye 111a is provided in a forward-projecting manner at the upper and lower middle portions. The latch eye 111a is a component for holding the front door 200 in the closed state, and details will be described later.
[0050] It should be noted that the left side of the vehicle body 101 has the same structure as the right side, and this invention is applicable to either the right or left side of the vehicle body 101. The following description pertains to the application of this invention to the right side of the vehicle body 101. Furthermore, this invention can also be applied to the rear door 300.
[0051] (Structure of the front door 200)
[0052] like Figure 2 As shown, the front door 200 includes: a door body portion 210 constituting the lower half of the front door 200, a window frame 220 constituting the upper half of the front door 200, and a window glass (not shown) held by the window frame 220. It should be noted that in the following description, the window frame 220 will be simply referred to as frame 220.
[0053] A front door hinge 211 is installed at the front end of the door body 210. Furthermore, a front door inspector 215 is installed between the front door hinges 211 and 211 at the front end of the door body 210. The structures of the front door hinges 211 and the front door inspector 215 are known in the present invention. It should be noted that... Figure 2 The interior is shown without door trim and other details.
[0054] On the other hand, a latch hole 212 is formed at the rear end of the door body 210, and when the front door 200 is in the closed state, the latch eye 111a of the body 101 enters the latch hole 212. Inside the door body 210, a latch device 213 is provided as a locking part. The latch device 213 is a device that engages with the latch eye 111a that has entered the latch hole 212 when the front door 200 is in the closed state, thereby keeping the front door 200 in the closed state. The structure of the latch device 213 is a structure known in the present invention.
[0055] The frame 220 has a front side portion 221, an upper side portion 222, and a longitudinal side portion 223 extending upward and diagonally backward from the front of the door body portion 210. The upper side portion 222 extends in the front-rear direction, and its front end is continuous with the upper end of the front side portion 221. In addition, the longitudinal side portion 223 extends upward from the rear of the door body portion 210, and its upper end is continuous with the rear end of the upper side portion 222.
[0056] like Figure 8 , Figure 9 As shown, the frame 220 is composed of an outer panel 224 located on the exterior side of the vehicle and an inner panel 225 located on the interior side of the vehicle. Figure 8 As shown, the inner panel 225 has an upper sealing plate portion 225a extending towards the outer panel 224 at its upper part, and an inner panel upper plate portion 225b that curves upward from a portion near the outer panel 224, with the inner panel upper plate portion 225b coinciding with the interior side surface of the outer panel 224. Furthermore, the outer panel 224 has a curved portion 224a curving towards the interior side of the vehicle, which coincides with the interior side surface of the inner panel upper plate portion 225b. The upper sealing plate portion 225a is inclined upwards as it approaches the exterior side of the vehicle.
[0057] like Figure 9 As shown, a longitudinal edge sealing plate 225c extending in the direction between the interior and exterior of the vehicle is provided on the inner panel 225 of the longitudinal edge portion 223 of the frame 220. In addition, a rear side plate 225d is provided that bends from the exterior end of the longitudinal edge sealing plate 225c and extends rearward.
[0058] In addition, such as Figure 9 As shown by the virtual lines, a decorative element 226 extending in the vertical direction is installed on the exterior side of the outer panel 224 that forms the longitudinal edge 223.
[0059] (Structure of sealing element 1 for motor vehicle doors)
[0060] like Figure 5 As shown in the partial image, a vehicle door seal 1 is installed on the front door 200 to seal the area between the front door 200 and the front door opening 102. (See image for details.) Figure 3 As shown, the sealing member 1 for a motor vehicle door includes: a front sealing portion 2 extending along the front edge 221 of a frame 220; an upper sealing portion 3 extending along the upper edge 222 of the frame 220 in the longitudinal direction; a longitudinal sealing portion 4 extending downward along the longitudinal edge 223 of the frame 220; a front molded portion 5; and a lower sealing portion 6. The front sealing portion 2 and the upper sealing portion 3 are extrusion-molded portions integrally formed by extruding material from a nest (not shown), and have the same cross-section from the front end to the rear end. The lower sealing portion 6 extends downward along the front end of the door body portion 210 and extends along the lower end of the door body portion 210 to the middle portion in the longitudinal direction; this lower sealing portion 6 is also an extrusion-molded portion. The front molded portion 5 is the portion connecting the front end of the front sealing portion 2 and the upper end of the lower sealing portion 6, and is a portion formed by a mold (not shown) that operates in an opening and closing motion.
[0061] Here, reference numeral L5 is used to indicate the boundary line between the lower sealing part 6 and the front mold forming part 5, and reference numeral L4 is used to indicate the boundary line between the front mold forming part 5 and the front sealing part 2. The materials suitable for the front sealing part 2, the upper sealing part 3, the longitudinal sealing part 4, the front mold forming part 5, and the lower sealing part 6 can be any rubber-like elastomer, without particular limitations. In the case of rubber, EPDM sponge rubber is preferred, and in the case of thermoplastic resin, foamed TPO or soft TPO is preferred.
[0062] It should be noted that the front sealing part 2, the front mold forming part 5, and the lower sealing part 6 are not essential components of this invention and can be omitted.
[0063] The longitudinal edge sealing portion 4 includes: a rear mold forming portion 7 formed by a mold (not shown) with an opening and closing action; a rear extrusion forming portion 8 formed by extrusion from a nest (not shown); and a lower mold forming portion 9 formed by a mold (not shown) with an opening and closing action. The rear mold forming portion 7 is formed in a manner corresponding to the junction of the upper edge portion 222 and the longitudinal edge portion 223 of the frame 220, and the front portion of the rear mold forming portion 7 is connected to the rear end of the upper sealing portion 3. In addition, the rear extrusion forming portion 8 extends along the longitudinal edge portion 223 of the frame 220 in the vertical direction, and the upper portion of the rear extrusion forming portion 8 is connected to the lower portion of the rear mold forming portion 7. After the upper sealing part 3 and the rear extrusion molding part 8 are formed separately, the upper sealing part 3 and the rear extrusion molding part 8 are held in the mold for forming the rear mold molding part 7. Then, the material of the rear mold molding part 7 is injected into the mold to form the upper sealing part 3, the rear extrusion molding part 8 and the rear mold molding part 7 are integrally formed.
[0064] Furthermore, the rear extrusion molding part 8 is then held in the mold for molding the lower mold molding part 9, and then the material of the lower mold molding part 9 is injected into the mold to perform molding, thereby enabling the rear extrusion molding part 8 and the rear mold molding part 9 to be integrally molded.
[0065] Here, reference numeral L1 is used to indicate the boundary line between the upper sealing part 3 and the rear mold forming part 7, reference numeral L2 is used to indicate the boundary line between the rear mold forming part 7 and the rear extrusion forming part 8, and reference numeral L3 is used to indicate the boundary line between the rear extrusion forming part 8 and the lower rear mold forming part 9.
[0066] It should be noted that the longitudinal edge sealing part 4 in this embodiment is composed of the rear mold forming part 7, the rear extrusion forming part 8 and the lower mold forming part 9. However, the rear extrusion forming part 8 and the lower mold forming part 9 are not essential components of this invention. The longitudinal edge sealing part 4 can also be formed by the rear mold forming part 7 alone, or it can be formed by the rear mold forming part 7 and the rear extrusion forming part 8.
[0067] Figure 8This is a diagram showing the cross-section and mounting structure of the upper sealing portion 3. The upper sealing portion 3 has a mounting base 30 mounted on the upper side 222 of the frame 220. The mounting base 30 is plate-shaped, extending along the upper sealing mounting plate portion 225a in the front-rear direction, and is fixed relative to the upper sealing mounting plate portion 225a by, for example, a clip (not shown). An outer side wall portion 31 extending upward and also in the front-rear direction is formed on the outer side of the mounting base 30, and an inner side wall portion 32 extending upward and outward and also in the front-rear direction is formed on the inner side of the mounting base 30. The upper end of the outer side wall portion 31 is continuous with the upper end of the inner side wall portion 32. Furthermore, the upper sealing portion 3 has an inclined wall portion 33 extending obliquely from near the lower end of the outer side wall portion 31 to the middle of the inner side wall portion 32 in the vertical direction and also in the front-rear direction. The mounting base 30, the outer side wall 31, the inner side wall 32 and the inclined wall 33 form two upper spaces R1 and lower spaces R2 that extend in the front-rear direction.
[0068] A back sealing lip 34 is provided at the upper end of the outer wall portion 31, protruding obliquely upward toward the exterior of the vehicle body. The back sealing lip 34 makes elastic contact with the curved portion 224a of the outer panel 224 from the inside when the upper sealing portion 3 is installed on the upper sealing mounting plate portion 225a.
[0069] The upper sealing portion 3 is provided with an outer sealing lip 35 of the extrusion portion disposed on the exterior side of the vehicle body and an inner sealing lip 36 of the extrusion portion disposed on the interior side of the vehicle body, separate from the outer sealing lip 35 of the extrusion portion. The outer sealing lip 35 of the extrusion portion protrudes upward from near the upper end of the outer wall portion 31 and the inner wall portion 32 and extends in the front-rear direction, and elastically contacts the top 120 when the front door 200 is closed. When the front door 200 is open, it becomes an upwardly extending shape as shown by the dotted line, and when the front door 200 is closed, it elastically contacts the top 120. At this time, it is pressed downward by the outer contact surface 120a of the top 120 extending in the interior-exterior direction of the vehicle body, and thus becomes a downwardly warped shape.
[0070] The inner sealing lip 36 of the compression part protrudes upward from the middle of the inner wall portion 32 in the vertical direction and extends in the front-rear direction, and elastically contacts the top 120 when the front door 200 is closed. When the front door 200 is open, it becomes a shape extending towards the interior of the vehicle, as shown by the dotted line, and when the front door 200 is closed, it elastically contacts the top 120, at which time it becomes a shape that is elastically deformed by being pressed against the exterior of the vehicle by the inner contact surface 120b of the top 120 extending in the vertical direction.
[0071] A water guide groove S is formed between the outer sealing lip 35 and the inner sealing lip 36 of the extrusion part. Since the outer sealing lip 35 and the inner sealing lip 36 of the extrusion part extend in the front-rear direction, the water guide groove S is also formed by a groove that is long in the front-rear direction. When the front door 200 is closed, although the outer sealing lip 35 of the extrusion part is in elastic contact with the top 120, external water may seep in from between the outer sealing lip 35 of the extrusion part and the outer contact surface 120a of the top 120. That is, if water seeps in from between the upper part of the front door 200 and the top 120, it will flow into the water guide groove S, and the water flowing into the water guide groove S can flow in the front-rear direction.
[0072] Figure 9 This is a schematic diagram showing the cross-section and mounting structure of the rear extrusion molding section 8. The rear extrusion molding section 8 has a mounting plate section 80 mounted on the longitudinal edge section 223 of the frame 220. The mounting plate section 80 is plate-shaped, extending vertically along the longitudinal edge sealing mounting plate section 225c and also extending in the interior / exterior direction, and is fixed relative to the longitudinal edge sealing mounting plate section 225c by clips (not shown). An inner rib 80a and an outer rib 80b are provided on the front surface of the mounting plate section 80. The inner rib 80a is located on the interior side of the mounting plate section 80 and extends continuously in the vertical direction. The outer rib 80a is located on the exterior side of the mounting plate section 80 and extends continuously in the vertical direction. Sealing is achieved by the elastic deformation of the inner rib 80a and outer rib 80b in contact with the longitudinal edge sealing mounting plate section 225c.
[0073] The rear extrusion molding part 8 has a peripheral wall part 81 formed in such a way that it extends from the edge of the exterior side of the mounting plate part 80 to the edge of the interior side of the vehicle and bulges outward. The peripheral wall part 81 is designed to be elongated in the vertical direction and elastically contacts the right center pillar 111 when the front door 200 is closed, thereby becoming a slightly concave shape.
[0074] The rear extrusion molding section 8 has a hollow section R3 (described later) divided by the mounting plate section 80 and the peripheral wall section 81. When the vehicle door seal 1 is installed on the front door 200, as... Figure 3 The length of the longitudinal edge sealing portion 4 is set such that the lower part of the longitudinal edge sealing portion 4 extends to a position lower than the latch device 213. A drain outlet 82 is formed at the lower part of the longitudinal edge sealing portion 4, which communicates with the lower end of the hollow portion R3, and the drain outlet 82 opens downward.
[0075] like Figure 7As shown, an outer sealing lip 70 of the molded part is formed on the outer side of the rear molded part 7, protruding upward and extending in the front-rear direction. The front end of the outer sealing lip 70 of the molded part is continuous with the rear end of the outer sealing lip 35 of the extrusion part of the upper sealing part 3. When the front door 200 is closed, the outer sealing lip 70 of the molded part is in elastic contact with the top 120.
[0076] A cylindrical section 70a extending vertically is provided inside the rear mold forming section 7. The lower end of the cylindrical section 70a is continuous with the upper end of the mounting plate section 80 and the peripheral wall section 81 of the rear extrusion forming section 8. Thus, the internal space R4 of the cylindrical section 70a communicates with the hollow section R3 of the rear extrusion forming section 8, and a drainage channel R5 extending vertically is formed inside the longitudinal edge sealing section 4. The lower end of the drainage channel R5 is connected to the drain outlet 82 (… Figure 4 (As shown) connected, the upper end of drainage channel R5 is connected to Figure 7 The inlet 71 shown is connected. Therefore, the drainage path R5 extends continuously from the inlet 71 to the outlet 82.
[0077] In other words, a water inlet 71 is formed on the upper part of the rear mold forming section 7, and the water inlet 71 communicates with the rear end of the water guide channel S. The water inlet 71 opens upward and is elongated in the front-rear direction. The water inlet 71 is located near the lower end of the outer sealing lip 70 of the mold forming section, further inside the vehicle interior than the outer sealing lip 70 of the mold forming section. Since the water guide channel S is located in front of the water inlet 71, when water in the water guide channel S flows rearward, it flows into the water inlet 71 from the front part of the water inlet 71.
[0078] Both the interior edge 71a and the exterior edge 71b of the water inlet 71 extend in the longitudinal direction. An inner side plate 72 extending upwards and in the longitudinal direction is formed on the interior edge 71a of the water inlet 71. Furthermore, the front end of the inner side plate 72 is continuous with the rear end of the outer sealing lip 36 of the upper sealing portion 3. Therefore, water in the water guide channel S will not exceed the interior edge 71a of the water inlet 71 and can be guided into the water inlet 71 through the inner side plate 72.
[0079] like Figure 4 As shown, the rear mold forming section 7 has an extension plate section 74 extending rearward. An outer insert (rigid sheet) 50 is provided overlappingly on one surface of the extension plate section 74 inside the vehicle interior. The outer insert 50 is made of a material that is harder than the material constituting the longitudinal edge sealing section 4. Examples of materials for the outer insert 50 include polyacetal resin, which is more difficult to deform than the material constituting the rear mold forming section 7.
[0080] like Figure 6As shown by the dashed lines, a core extraction hole 79 is formed in the rear mold forming section 7. In the case of a cylindrical portion 70a formed in the rear mold forming section 7, a core (not shown) is needed to form the inner surface of the cylindrical portion 70a. By extracting the core formed on the inner surface of the cylindrical portion 70a, the core extraction hole 79 opens on the outer surface of the cylindrical portion 70a. In this embodiment, the core extraction hole 79 is formed as a slit elongated in the vertical direction, but it is not limited to this. Furthermore, as... Figure 11 As shown, the core extraction hole 79 opens further outwards from the vehicle exterior than the mounting plate portion 80. More specifically, the core extraction hole 79 is located further outwards from the vehicle exterior than the inner rib 80a and outer rib 80b of the mounting plate portion 80. Figure 12 As shown, the core extraction hole 79 extends continuously to the upper part of the rear mold forming part 7.
[0081] In addition, such as Figure 6 As shown, when viewed from the rear, the longitudinal edge seal 4, mounted on the longitudinal edge 223 of the frame 220, is inclined and gently curved towards the interior of the vehicle as it moves upward. This is because the longitudinal edge 223 of the frame 220 is formed towards the interior of the vehicle as it moves upward. Therefore, the drainage passage R5 within the longitudinal edge seal 4 also inclines or curves in the same direction. Furthermore, the amount of water flowing into the drainage passage R5 is not large, as it is only the amount that flows in when sealed by the sealing lip 35 on the outer side of the compression section. Therefore, the water in the drainage passage R5 flows towards the interior of the vehicle more than the center of the drainage passage R5 in the interior-exterior direction. The core extraction hole 79 is formed towards the exterior of the vehicle more than the mounting plate portion 80, so the core extraction hole 79 opens at a point where water hardly flows in the drainage passage R5. Therefore, it is possible to prevent water flowing in the drainage passage R5 from leaking through the core extraction hole 79 without completely blocking it.
[0082] (Internal structure of the rear mold forming section 7)
[0083] like Figure 7 , Figure 10 and Figure 12 As shown, a guide portion 90 is provided on the inner surface of the rear mold forming section 7, positioned above the core extraction hole 79. This guide portion 90 guides water flowing in from the inlet 71 towards a position closer to the interior of the vehicle than the core extraction hole 79. The guide portion 90 is a plate integrally formed on the outer side of the inner surface of the rear mold forming section 7 and extends towards the interior of the vehicle. The interior end of the guide portion 90 is located further inside the vehicle than the core extraction hole 79.
[0084] The guide portion 90 extends further in the longitudinal direction. The front end of the guide portion 90 is located further forward than the core extraction hole 79, and the rear end of the guide portion 90 is located further rearward than the core extraction hole 79. A protrusion 90a is formed at the interior side end of the guide portion 90, protruding upward and extending in the longitudinal direction. The front end of the protrusion 90a is integrated with the inner surface of the rear mold forming portion 7. On the other hand, the rear end of the protrusion 90a is located further forward than the rear end of the guide portion 90, thus separating it from the inner surface of the rear mold forming portion 7.
[0085] In addition, such as Figures 10-12 As shown, a protrusion 91 is provided on the inner surface of the rear mold forming section 7. This protrusion 91 guides the water flowing in from the inlet 71 to a position closer to the interior of the vehicle than the core extraction hole 79. The protrusion 91 extends from a position higher than the core extraction hole 79 to a position lower than the upper end of the core extraction hole 79. In this embodiment, the protrusion 91 extends to a position lower than the lower end of the core extraction hole 79.
[0086] like Figure 10 As shown, the upper end of the protrusion 91 is positioned inside the rear mold forming section 7, further outward than the center of the vehicle interior in the direction of vehicle interior to exterior. Furthermore, the upper end of the protrusion 91 is positioned further forward than the front end of the guide section 90. (As shown...) Figure 12 As shown, a guide portion 90 is disposed at a position higher than the upper end of the protrusion portion 91.
[0087] like Figure 11 As shown, the lower portion of the protruding strip 91, which is below the upper end, is formed on the inner surface of the mounting plate portion 80 and is separated from the core extraction hole 79 inside the vehicle interior. In addition, the lower portion of the protruding strip 91, which is below the upper end, extends along the core extraction hole 79 in the vertical direction.
[0088] (Effects of the implementation method)
[0089] As explained above, according to this embodiment, such as Figure 8 As shown, when the front door 200 is closed, the outer sealing lip 35 and the inner sealing lip 36 of the upper sealing portion 3 elastically contact the top 120. At this time, because the outer sealing lip 35 and the inner sealing lip 36 are spaced apart in the interior-exterior direction, they are prone to warping and deformation. Therefore, compared to the case where the hollow seals are in elastic contact, the reaction force acting on the front door 200 at the moment of closing is smaller. Consequently, the door sealing performance becomes better.
[0090] Additionally, when the front door 200 is closed, although the outer sealing lip 35 and the inner sealing lip 36 of the upper sealing part 3 are in elastic contact with the top 120, as Figure 7 As indicated by arrow W1, water typically seeps in from between the outer sealing lip 35 and the top 120 of the extrusion section. The seeping water flows into the water guide groove S between the outer sealing lip 35 and the inner sealing lip 36 of the extrusion section. The water flowing into the water guide groove S moves backward as indicated by arrow W2. The water flowing backward in the water guide groove S flows into the drainage path R5 formed inside the longitudinal edge sealing section 4 from the inlet 71 formed at the upper part of the longitudinal edge sealing section 4, as indicated by arrows W3 and W5. The water flowing into the drainage path R5... Figure 3 As indicated by arrow W4, the contents are discharged from the drain outlet 82, which is located lower than the latch device 213, making it difficult for the contents to spill onto the latch device 213.
[0091] Water flowing from between the outer sealing lip 35 of the compression section and the top 120, and then flowing rearward in the water guide channel S, reaches the guide section 90. Since the guide section 90 is located higher than the core extraction hole 79 and extends further inside the vehicle interior than the core extraction hole 79, the water reaching the guide section 90 is guided through it to a position further inside the vehicle interior than the core extraction hole 79. Therefore, water flowing downward outside the vehicle interior is less likely to flow towards the core extraction hole 79, thus inhibiting water from flowing out of the core extraction hole 79. This also makes it difficult for water to spill onto the latch device 213.
[0092] A protrusion 90a extending in the front-rear direction is formed at the end of the guide section 90 inside the vehicle interior. Water reaching the top of the guide section 90 is guided in the front-rear direction by the protrusion 90a acting like a dam. Furthermore, since the rear end of the protrusion 90a is separated from the inner surface of the rear mold forming section 7, water flows from behind the protrusion 90a to a position closer to the inside of the vehicle interior than the core extraction hole 79, making it difficult for water to reach the core extraction hole 79.
[0093] In addition, since the upper sealing part 3 and the longitudinal sealing part 4 are integrally formed, the water flowing from the water guide channel S to the drainage channel R5 will not leak in the middle, thereby suppressing the situation where water spills onto the latch device 213.
[0094] Furthermore, such as Figure 10 As shown, because the upper end of the protrusion 91 is located outside the vehicle exterior of the water guide channel S, the water flowing as indicated by arrow W6 flows closer to the vehicle interior than the protrusion 91, and is guided by the protrusion 91 to a position closer to the vehicle interior than the core extraction hole 79. Therefore, it is difficult for the water to flow to the core extraction hole 79, thereby suppressing the outflow of water from the core extraction hole 79, and thus making it difficult for water to spill onto the latch device 213.
[0095] The above-described embodiments are merely illustrative in all respects and should not be construed as limiting. Furthermore, all modifications and alterations falling within the equivalent scope of the claims are within the scope of this invention.
[0096] Industrial availability
[0097] As described above, the sealing element for motor vehicle doors according to the present invention can be used, for example, for front doors and rear doors.
[0098] Explanation of reference numerals in the attached figures
[0099] 1. Seals for motor vehicle doors
[0100] 3. Upper sealing section (extrusion molding section)
[0101] 4. Longitudinal edge sealing section
[0102] 7. Rear mold forming section
[0103] 35. Sealing lip on the outer side of the extrusion section
[0104] 36. Sealing lip on the outer side of the extrusion section
[0105] 71 Inlet
[0106] 79 Core Extraction Hole
[0107] 80 Mounting plate section
[0108] 81. Zhou Bi section
[0109] 82 Drainage outlet
[0110] 90 Guiding Department
[0111] 90a protrusion
[0112] 91. Protruding part
[0113] 102 Front door opening
[0114] 200 Front door
[0115] 220 frame
[0116] 223 Longitudinal side
[0117] R3 Hollow Section
[0118] S-shaped water guide channel
Claims
1. A sealing element for a motor vehicle door, which is installed on a door that opens and closes to a door opening formed on the side of the vehicle body, and seals the door opening and the door itself, characterized in that... The vehicle door seal includes a longitudinal edge sealing portion, which has: a mounting plate portion extending vertically along the longitudinal edge of the window frame of the door and mounted thereon; and a peripheral wall portion integrally formed on the mounting plate portion and extending vertically along the longitudinal edge of the window frame. The upper part of the longitudinal edge sealing portion has a water inlet, which communicates with the hollow portion formed by the mounting plate portion and the peripheral wall portion. The lower part of the longitudinal edge sealing portion is located below the locking portion of the door, and has a drain outlet communicating with the hollow portion. The portion of the longitudinal edge sealing part, from the part having the water inlet to the upper part of the hollow part, is configured as a mold forming part. The mold forming section has a core extraction hole that opens further outward from the vehicle exterior than the mounting plate section. This core extraction hole is used to extract the core used during molding. A guide portion is provided on the inner surface of the mold forming part, positioned above the core extraction hole. This guide portion guides water flowing in from the inlet to a position closer to the interior of the vehicle than the core extraction hole. The guide portion also extends in the vehicle's longitudinal direction, and an upwardly projecting protrusion extending in the vehicle's longitudinal direction is formed at the end of the guide portion inside the vehicle interior. The rear end of the protrusion is separated from the inner surface of the mold forming portion.
2. The sealing element for a motor vehicle door according to claim 1, characterized in that, The guide portion is a plate-shaped part integrally formed on the outer side of the vehicle exterior in the inner surface of the mold forming part and extending toward the inner side of the vehicle interior.
3. A sealing element for a motor vehicle door, which is installed on a door that opens and closes to a door opening formed on the side of the vehicle body, and seals the door opening and the door itself, characterized in that... The vehicle door seal includes a longitudinal edge sealing portion, which has: a mounting plate portion extending vertically along the longitudinal edge of the window frame of the door and mounted thereon; and a peripheral wall portion integrally formed on the mounting plate portion and extending vertically along the longitudinal edge of the window frame. The upper part of the longitudinal edge sealing portion has a water inlet, which communicates with the hollow portion formed by the mounting plate portion and the peripheral wall portion. The lower part of the longitudinal edge sealing portion is located below the locking portion of the door, and has a drain outlet communicating with the hollow portion. The portion of the longitudinal edge sealing part, from the part having the water inlet to the upper part of the hollow part, is configured as a mold forming part. The mold forming section has a core extraction hole that opens further outward from the vehicle exterior than the mounting plate section. This core extraction hole is used to extract the core used during molding. A guide portion is provided on the inner surface of the mold forming part at a position higher than the core extraction hole. A protrusion portion is provided on the inner surface of the mold forming part, extending from a position higher than the core extraction hole to a position lower than the upper end of the core extraction hole. The guide portion and the protrusion portion guide the water flowing in from the water inlet to a position closer to the vehicle interior than the core extraction hole. The guide portion also extends in the vehicle's longitudinal direction, and an upwardly projecting protrusion extending in the vehicle's longitudinal direction is formed at the end of the guide portion inside the vehicle interior. The rear end of the protrusion is separated from the inner surface of the mold forming portion.
4. The sealing element for a motor vehicle door according to claim 3, characterized in that, The upper end of the protruding part is positioned outside the vehicle body inside the mold forming part.
5. The sealing element for a motor vehicle door according to claim 3, characterized in that, The core extraction hole is a narrow slit that extends in the vertical direction. The lower portion of the protruding part, which is below the upper end of the core extraction hole, extends vertically along the core extraction hole at a position closer to the interior of the vehicle than the core extraction hole.
6. The sealing element for a motor vehicle door according to claim 1, characterized in that, The vehicle door seal includes an upper sealing portion extending along the upper edge of the window frame in the vehicle's longitudinal direction. The longitudinal edge sealing portion is integrally formed at the rear end of the vehicle of the upper edge sealing portion. The upper sealing portion includes: an outer sealing lip, disposed on the exterior of the vehicle body and extending along the longitudinal direction of the vehicle, which elastically contacts the vehicle body when the door is closed; and an inner sealing lip, disposed separately from the outer sealing lip on the interior of the vehicle body and extending along the longitudinal direction of the vehicle, which elastically contacts the vehicle body when the door is closed. A water guide groove is formed between the outer sealing lip and the inner sealing lip, which allows water that has seeped in from between the outer sealing lip and the vehicle body to flow towards the rear of the vehicle. The water inlet is connected to the rear side of the vehicle via the water guide channel.