Inside weather strip terminal structure

Abstract

To provide a terminal structure of an inside weather strip, in which the invasion of external noise into a cabin can be further suppressed due to a formation position of a terminal seal part.SOLUTION: An inside weather strip 13 comprises: a base part 14 attached to a waist flange portion 12a of a door inner panel 12; glass seal lips 15, 16 of at least two upper and lower stages projectingly formed from the base part side to the door glass side; and a terminal seal part 20 formed by molding in one end in a longitudinal direction, and caused to abut on a vertical side portion 4b of a door sash 4. The terminal seal part has a thin base portion 20a and a lip portion 20b, and is formed in a form of covering entire external surfaces of an external surface of a rear end of the glass seal lip 16 of a lower stage in the glass seal lips of two upper and lower stages, an external surface of a lower end of the base part 14, and an external surface of an end of a bottom wall 18a of a fitting part 18.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a terminal structure of an inside weather strip, and in particular to a terminal structure of an inside weather strip that is attached to a door inner panel of a door panel facing a door waist opening in a vehicle door, and whose longitudinal front or rear end is abutted against at least the door sash. [Background technology]

[0002] As this type of inside weatherstrip, for example, one described in the following Patent Document 1 is provided. Note that, depending on the mounting position on the vehicle door, the inside weatherstrip is also called a door waist inner weatherstrip, a waist inner seal, a beltline weatherstrip, a door waist inside seal member, or the like.

[0003] The inside weather strip described in Patent Document 1 and the like is formed into a long length by extrusion molding, and is attached to a waist flange portion 02 of a door inner panel 01 facing a door waist opening on the interior side of a vehicle front door, as shown in Fig. 7. As shown in Figs. 7 and 8, this inside weather strip 31 includes a plate-shaped base portion 32, two parallel glass seal lips 32a and 32b formed by protruding obliquely upward from the base portion 32 toward the door glass 03, a substantially inverted U-shaped mounting base portion 33 formed by protruding from the lower end of the base portion 32 in the opposite direction to the glass seal lips 32a and 32b, and a U-shaped fitting portion 34 constituted by one side wall 33a of the mounting base portion 33 on the vehicle exterior side and the base portion 32. The mounting base portion 32 is engaged with the waist flange portion 02 from above, so that the inside weather strip 31 is attached to the waist flange portion 02. An end flange 35a of a door trim 35 is fitted and held in the fitting portion 34 from above.

[0004] As shown in FIG. 8, the inside weather strip 31 has a terminal seal portion 37 at one longitudinal end portion which abuts against a vertical side portion 36a of the door sash 36 or a part of the door glass run (not shown).

[0005] The end seal portion 37 is integrally formed by molding, and has a thin arc-shaped lip 37a on the outer periphery. 32a The end seal portion 37 is provided over the outer surface of one longitudinal end of the inside weather strip 31, the outer surface of the end of the fitting portion 34, and the outer surface of the end of one side wall 33a of the mounting base portion 33. 36 Vertical side of 36a The door hood is fitted to the front door and the door glass run, filling the gap between them and blocking the path of external noise from entering the vehicle interior from the underside of the front door. Note that external noise here refers to, for example, road noise and wind noise while driving. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6747999 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the terminal structure of the inside weatherstrip described in Patent Document 1, as mentioned above, the terminal seal portion 37 is provided across the end outer surface of the upper glass seal lip 32a of the inside weatherstrip 31 and the end outer surface of the fitting portion 34, etc., so when the inside weatherstrip 31 is attached to the waist flange portion 02 of the door inner panel 01, the thin lip 37a of the terminal seal portion 37 may be curled outward and deformed.

[0008] That is, as mentioned above, since the terminal seal portion 37 is provided on the upper glass seal lip 32a side, when the inside weatherstrip 31 is attached to the waist flange portion 02 of the door inner panel 01, that is, when the terminal seal portion 37 is abutted obliquely against the vertical side portion 36a of the door sash 36 and then the inside weatherstrip 31 is pressed down horizontally, there is a risk that the lip 37a will be curled outward and deformed.

[0009] The present invention has been devised in consideration of the technical problems with the terminal structure of the conventional inside weatherstrip described above, and provides an terminal structure of an inside weatherstrip that can further suppress the intrusion of external noise into the vehicle cabin. [Means for solving the problem]

[0010] The present invention provides a terminal structure of an inside weather strip, which is attached to a door inner panel of a vehicle door, adjacent to a waist flange portion of the door panel and facing a door waist opening, and is in sliding contact with a retractable door glass, and either one of a front end and a rear end in a longitudinal direction is abutted against at least a door sash, The inside weather strip has a base portion attached to the door inner panel, at least two upper and lower stages of glass seal lips formed to protrude from the base portion side toward the door glass side, and a terminal seal portion formed by molding at an end portion in the longitudinal direction and abutted against the door sash, The terminal seal portion is disposed on the end side of the lower glass seal lip of the upper and lower two glass seal lips. only Established and a thin base and an annular lip integrally formed on an outer periphery of the base. The annular lip is formed to a substantially uniform and low protruding height from the outer periphery of the base. It is characterized by the following. Effect of the Invention

[0011] According to the present invention, by providing the terminal seal portion on the lower glass seal lip side, the outer periphery of the terminal seal portion is prevented from being curled outward when the inside weatherstrip is attached, which further prevents outside noise from entering the vehicle interior and contributes to further improving the quietness of the vehicle interior. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is an explanatory diagram showing a more specific embodiment of the terminal structure of an inside weather strip according to the present invention, with the front door of the automobile being open. [Diagram 2] 2 is an enlarged view taken along line A in FIG. 1. [Diagram 3] FIG. 2 is a perspective view of the inside weather strip used in the present embodiment, as viewed from the rear side of the terminal seal portion. [Figure 4] FIG. 2 is a perspective view of an inside weather strip used in the present embodiment, as viewed from the front side on the terminal seal portion side. [Diagram 5] 1 is a top view showing a state in which an end seal portion of an inside weather strip of this embodiment attached to a door inner panel abuts against a vertical side portion of a door sash. FIG. [Figure 6] FIG. 11 is a perspective view of an inside weather strip according to a second embodiment of the present invention, as viewed from the terminal seal portion side. [Figure 7] FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 showing a conventional inside weather strip. [Figure 8] FIG. 11 is a perspective view of a conventional inside weather strip as viewed from the terminal seal portion side. [Figure 9] 1 is a perspective view showing a state in which an end seal portion of a conventional inside weather strip abuts against a vertical side portion of a door sash. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a terminal structure for an inside weather strip according to the present invention will be described with reference to the drawings.

[0014] FIG. 1 shows an open front door of an automobile (hereinafter, simply referred to as a door). As is well known, this door 1 is a door outer panel and a door inner panel, both of which are door panels, that are integrated by hemming or the like, and is composed of a door main body 3 below the door waist opening 2 and an arch-shaped door sash 4 above the door waist opening 2. The door waist opening 2 is an opening formed at the upper end of the door main body 3 by a waist flange portion 12a of a door inner panel 12 (described later) and a waist flange portion of a door outer panel (not shown), and refers to a portion where a door glass 6 (described later) faces. The door sash 4 is composed of an upper side portion 4a that runs from the roof of the vehicle body to the front pillar when the door is closed, and a rear vertical side portion 4b that runs along the center pillar when the door is closed.

[0015] A door glass run 7 is attached to the inner periphery of the door sash 4, and the door glass 6 is guided and supported by this door glass run 7 so that it can be raised and lowered.

[0016] A resin door trim (lining) 8 with a predetermined surface decoration is attached to the inside (indoor surface) of the door body 3. A hollow rubber cord-like door weather strip 9 is attached in a closed loop to the periphery of the indoor side of the door 1 including the door body 3 and the door sash 4. As is well known, when the door is closed, the door weather strip 9 elastically contacts the periphery of the door opening on the vehicle body side to seal the inside and outside of the vehicle. This ensures airtightness, watertightness, sound insulation, etc.

[0017] 2 is an enlarged arrow view along line A in FIG. 1, FIG. 3 is an oblique view of the inside weatherstrip used in this embodiment as viewed from the rear side of the terminal seal portion, FIG. 4 is an oblique view of the inside weatherstrip used in this embodiment as viewed from the front side of the terminal seal portion, and FIG. 5 is an overhead view showing the state in which the terminal seal portion of the inside weatherstrip used in this embodiment attached to the door inner panel abuts against the vertical side portion of the door sash.

[0018] As shown in Fig. 1, the rear vertical side portion 4b of the door sash 4 has a concave glass run receiving portion formed integrally with the main body portion having a hollow closed cross-sectional shape by, for example, roll forming, and is fixed inseparably to the door main body 3 by welding or the like in a portion below the door waist opening 2 shown in Fig. 1. The door glass run 7 is fitted and held in the glass run receiving portion.

[0019] The door glass run 7 is made of an elastic material such as EPDM or other resin or rubber, has a generally U-shaped cross section, and has a pair of left and right seal lips protruding inward from the opening edge of the door glass run 7. The door glass 6 is received between the pair of seal lips.

[0020] 1, a waist flange portion 12a on the side of the door inner panel 12 that defines the door waist opening 2 is formed upright, and a terminal flange portion 8a on the side of the door trim 8 is disposed adjacent to the inside (outside of the vehicle) of this waist flange portion 12a. In other words, the terminal flange portion 8a on the side of the door trim 8 faces the door waist opening 2, as shown in FIG.

[0021] An inside weather strip 13 made of an EPDM or other resin-based or rubber-based elastic body is attached to the waist flange portion 12a of the door inner panel 12. The waist flange portion 12a extends over the entire length of the door waist opening 2, while the inside weather strip 13 has a rear end portion 13a, which is one end portion in the longitudinal direction, abutting against the opposing surface of the rear vertical side portion 4b of the door sash 4 within the door waist opening 2 and a part of the door glass run 7 via a terminal seal portion 20 described later, while the front end portion 13b, which is the other end portion, abutting against the front lower end portion of the door sash 4 and a part of the door glass run 7.

[0022] 2 to 4, the inside weatherstrip 13 includes a plate-shaped base portion 14, upper and lower two-stage glass seal lips 15, 16 that are parallel to each other and project obliquely upward from the base portion 14 toward the door glass 6, a mounting base portion 17 that projects from the lower end of the base portion 14 in the opposite direction to the upper and lower two-stage glass seal lips 15, 16, and a fitting portion 18 provided between one side wall 17a of the mounting base portion 17 on the vehicle exterior side and the base portion 14. The inside weatherstrip 13 is molded by extrusion molding so as to have a uniform cross-sectional shape in the longitudinal direction.

[0023] The upper and lower two glass seal lips 15, 16 of the inside weather strip 13 are formed in a substantially flat pleated shape and protrude obliquely upward from the interior side surface of the base portion 14. Moreover, both glass seal lips 15, 16 are formed to have substantially the same cross-sectional shape, and their outer surfaces are covered with low-friction material layers 19a, 19b made of silicone-based resin material, fluorine-based resin material, pile, or the like, which elastically contact the inner and outer surfaces of the door glass 6 and slide relative to the door glass 6 when the door glass 6 moves up and down, allowing the door glass 6 to move up and down.

[0024] The mounting base 17 is formed in an inverted U-shape and has one side wall 17a on the vehicle exterior side, the other side wall 17b on the vehicle interior side, and an upper wall 17c connecting the upper edges of the both side walls 17a, 17b, and on the inner surface of the other side wall 17b, three upper and lower stages of holding lips 17d are formed to protrude in an inclined manner toward the upper wall 17c. The mounting base 17 is engaged with the waist flange portion 12a of the door inner panel 12 inside, that is, the waist flange portion 12a is engaged in a sandwiched state between each holding lip 17d and the one side wall 17a, so that the entire inside weather strip 13 is attached and fixed to the waist flange portion 12a.

[0025] As shown in FIG. 3, one side wall 17a of the mounting base 17 is formed so that one longitudinal end extends beyond one longitudinal end of the other side wall 17b, and when the inside weather strip 13 is attached to the waist flange portion 12a, an outer surface 17e of one end of the one side wall 17a abuts (butts) against the opposing surface of the vertical side portion 4b, thereby providing a positioning function.

[0026] The fitting portion 18 is formed in a U-shape between the base portion 14 and one side wall 17a of the mounting base portion 17, and the terminal flange portion 8a of the door trim 8 is fitted into the fitting portion 18 from above.

[0027] In FIG. 2, reference numeral 21 denotes an outside weather strip provided on a door outer panel 22 on the outside of the vehicle, which cooperates with the inside weather strip 13 to seal the inner and outer surfaces of the door glass 6 while guiding them in a sliding manner in the vertical direction via upper and lower two-stage glass seal lips 21a, 21b.

[0028] An end seal portion 20 is provided at the longitudinal rear end portion 13a of the inside weather strip 13. This end seal portion 20 is integrally provided by molding, for example, EPDM or other resin-based or rubber-based material, at the longitudinal rear end portion 13a of the inside weather strip 13, which has been formed in advance by extrusion molding.

[0029] This terminal seal portion 20 has a thin base 20a and a lip 20b formed integrally with the outer peripheral edge of the base 20a, and is provided continuously from the outer surface of one longitudinal end (rear end) of the lower glass seal lip 16 of the upper and lower two-stage glass seal lip 15, 16 of the inside weather strip 13 to the outer surface of the lower end portion of the base portion 14 and the outer surface of the end portion of the bottom wall 18a of the fitting portion 18.

[0030] In other words, the terminal seal portion 20 is not provided at the rear end portion of the upper glass seal lip 15 of the upper and lower two-tiered glass seal lips 15, 16, but is provided continuously following the outer surface of one longitudinal end portion of the lower glass seal lip 16, the outer surface of the lower end portion of the base portion 14, and the outer surface of the end portion of the bottom wall 18a of the fitting portion 18, and is formed in a manner covering the entire outer surfaces of these outer surfaces.

[0031] The terminal seal portion 20 has a base 20a and an annular lip 20b that protrude a predetermined length from the rear end portion 13a of the inside weather strip 13. The base 20a of the terminal seal portion 20 protrudes by a few millimeters, and is set to a size such that there is no step with the end face of the upper glass seal lip 15 when it is butted against the opposing surface of the vertical side portion 4b. The thin lip 20b is freely flexible and deformable, and is adapted to abut against the opposing surface of the vertical side portion 4b and the opposing surface of a part of the glass run in a manner that fits the surface. [Functions and Effects of the End Seal Portion of the Present Embodiment] The effects of the end seal portion 20 of the inside weather strip 13 will be described below.

[0032] To attach the inside weatherstrip 13 having the terminal seal portion 20 integral therewith to the waist flange portion 12a of the door inner panel 12, the inside weatherstrip 13 is held as a whole in one hand, and the longitudinal rear end portion 13a of the inside weatherstrip 13 is lowered at an angle downward while engaging the mounting base 17 with the waist flange portion 12a, and then slid toward the vertical side portion 4b of the door sash 4.

[0033] As a result, the upper end of the terminal seal portion 20 is abutted against the vertical side portion 4b and a part of the door glass run 7, and then the entire inside weatherstrip 13 is pushed down to engage the mounting base 17 with the waist flange portion 12a, and the entire inside weatherstrip 13 is attached to the waist flange portion 12a.

[0034] At this time, the terminal seal portion 20 is positioned by the outer surface 17e of one end of one side wall 17a of the mounting base 17 abutting against the opposing surface of the vertical side portion 4b, as shown in Fig. 5. At the same time, the base portion 20a and the lip 20b of the terminal seal portion 20 abut against the opposing surface of the vertical side portion 4b and a part of the glass run from the longitudinal direction, as shown by the hatched area in Fig. 5, and come into close contact.

[0035] Furthermore, by providing the terminal seal portion 20 on the side of the lower glass seal lip 16, the upper end of the terminal seal portion 20 is prevented from being curled outward and deformed when the inside weather strip 13 is attached. In other words, since the terminal seal portion 20 is provided on the side of the lower glass seal lip 16, the upper end is not curled outward and the occurrence of gaps is prevented. As a result, it is possible to suppress the intrusion of external noise from inside the door body 3 into the vehicle interior, which contributes to further improving the quietness of the vehicle interior.

[0036] As described above, since the terminal seal portion 20 is provided on the lower glass seal lip 16 side, it is not exposed to the outside and cannot be seen from the outside, so that deterioration of the appearance quality can be suppressed.

[0037] In other words, in the conventional technology, the terminal seal portion is provided on the upper glass seal lip side, and is therefore exposed to the outside, which may result in a deterioration in appearance quality. However, in this embodiment, the terminal seal portion 20 is not exposed to the outside, so the deterioration in appearance quality can be suppressed.

[0038] Furthermore, in the conventional technology, when the inside weather strip is attached to the vehicle body, positioning is performed by a seal lip provided at the end of the inside weather strip. However, in this embodiment, the seal lip is eliminated and the longitudinal positioning is performed by one side wall 17a of the attachment base 17, which makes it possible to suppress the decrease in the sense of moderation in positioning due to the above-mentioned curling of the seal lip, and makes it possible to perform positioning with a stable and modest feeling. Second Embodiment figure 62 shows a second embodiment of the present invention, in which the area in which the end seal portion 20 is formed is expanded further toward one side wall 17a of the mounting base 17 from that of the first embodiment.

[0039] In other words, the terminal seal portion 20 extends from the end of the lower glass seal lip 16 to the end of the bottom wall 18a of the fitting portion 18, and further upwardly to the outer surface 17e of one longitudinal end of one side wall 17a of the mounting base 17, thereby covering the entirety of these end portions.

[0040] Therefore, according to this embodiment, in addition to the effect of the first embodiment provided by the terminal seal portion 20, by extending the terminal seal portion 20 upwardly onto the outer surface 17e of one side wall 17a of the mounting base 17, the contact area of ​​the terminal seal portion 20 with the vertical side portion 4b after the inside weather strip 13 is attached is increased, thereby further improving the sealing performance and more effectively suppressing the intrusion of external noise from within the door body 3 into the passenger compartment, thereby making it possible to achieve even quieter interior of the passenger compartment.

[0041] The present invention is not limited to the above-described embodiments, and for example, the same terminal seal portion 20 as in the respective embodiments may be provided on the front end portion 13b of the inside weatherstrip 13. In addition, the amount of protrusion and the formation range of the terminal seal portion 20 may be changed as desired depending on the specifications, size, shape, etc. of the inside weatherstrip 13.

[0042] Furthermore, the cross-sectional shape of the inside weather strip 13 is not limited to the configurations of the first and second embodiments, and for example, it is possible to change the formation position and structure of the mounting base 17 and the fitting portion 18. [Explanation of symbols]

[0043] 1. Front door 2…Door waist opening 3. Door body 4. Door sash 6. Door glass 8. Door trim 8a…Terminal flange part 11…Door glass run 12…Door inner panel 12a…Waist flange 13…Inside weather strip 13a...Rear end (one end) 13b...Front end (other end) 14…Base section 15…Upper glass seal lip 16…Lower glass seal lip 17…Mounting base 17a…One side wall 17b…Other side wall 17e...Outer surface of one end of one side wall 18…Fitting part 18a…Bottom wall 20…Terminal seal part 20a...Base 20b…Lip

Claims

1. A terminal structure of an inside weather strip, which is attached to a door inner panel of a vehicle door, adjacent to a waist flange portion of the door panel and facing a door waist opening, and is in sliding contact with a retractable door glass, and either one of a front end and a rear end in a longitudinal direction is abutted against at least a door sash, The inside weather strip has a base portion attached to the door inner panel, at least two upper and lower stages of glass seal lips formed to protrude from the base portion side toward the door glass side, and a terminal seal portion formed by molding at an end portion in the longitudinal direction and abutted against the door sash, the terminal seal portion is provided only on the end side of the lower stage glass seal lip of the upper and lower two stages of glass seal lips, and has a thin base portion and an annular lip integrally provided on the outer circumferential edge of the base portion, 1 is a cross-sectional view of an inside weather strip terminal structure according to the first embodiment of the present invention;

2. The terminal structure of the inside weather strip according to claim 1, The inside weather strip has an attachment base portion that is attached to a waist flange portion of the door inner panel on the vehicle interior rear side of the base portion, and has a fitting portion that is provided between the base portion and the attachment base and into which an end portion of a door trim is fitted from above, The terminal structure of an inside weather strip, wherein the terminal seal portion is provided continuously across an outer end surface of the lower glass seal lip and an outer end surface of the bottom wall of the fitting portion.

3. The terminal structure of the inside weather strip according to claim 2, A terminal structure of an inside weather strip, characterized in that when the inside weather strip is attached longitudinally to the door inner panel via the mounting base, the outer surface of one end of one side wall of the mounting base abuts against the opposing surface of the door sash and is positioned.

4. The terminal structure of the inside weather strip according to claim 3, A terminal structure of an inside weather strip, characterized in that the terminal seal portion is provided from the outer end surface of the bottom wall of the fitting portion to almost the entire outer end surface of one end surface of one side wall of the mounting base.

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