JP2009143358A - Weather strip for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve appearance of the interior of a vehicle and enhance sealing performance between a vehicle body and a door while suppressing cost. <P>SOLUTION: This weather strip for the vehicle closes a clearance G<SB>1</SB>between an edge part 52 of an opening part 12 which is formed on a vehicle body 11 opened/closed by a door 16 having a door panel 18 formed by press molding a window frame part 21 and a door body 22 and the door 16. The weather strip is provided with a base part 48 fixed to the edge part 52 of the opening part 12; an abutment part 39 abutting on a portion in the vicinity of an outer end of a door panel 18 while the door 16 closes the opening part 12; and an extending projection part 41 protruded from the abutment part 39 to the door 16 side. The extending projection part 41 is made abut on an inner edge part 34 of the window frame part 12 when the door 16 closes the opening part 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a weather strip for a vehicle suitable for use in a press-molded door.

Conventionally, various seal structures for closing a gap between a vehicle door and a vehicle body have been developed and put into practical use. The following patent document 1 is given as an example of such a seal structure.
Here, the technique of this patent document 1 is demonstrated using FIG. Note that FIG. 5 corresponds to FIG.

As shown in FIG. 5, the door frame 101 is mainly formed by an outer panel 102 and an inner panel 103.
Further, the door frame 101 is provided with a glass run holding portion 104 and a glass run 105.
Among these, the glass run holding portion 104 is a component that has an outer wall portion 107, an inner wall portion 108, and a bottom portion 109, and has a substantially U-shaped cross section. In addition, a glass run 105 that slidably supports the periphery of the door glass 106 is provided inside the glass run holding portion 104.

The vehicle outer wall 107 is welded to the outer panel 102, and the vehicle inner wall 108 is welded to the flange 109 of the inner panel 103.
The inner panel 103 is formed with a protruding portion 111 that protrudes from the upper end portion 109A of the flange portion 109 to the vehicle inner side (right side in FIG. 5).
The overhanging portion 111 is formed with a vehicle interior side surface 112 and a pressure contact surface 113.

Among these, the vehicle interior side surface 112 is a portion that forms the lower end of the overhanging portion 111.
The pressure surface 113 is a portion that forms the tip of the overhang portion 111 and is in contact with the opening weather strip 115 fixed to the vehicle body 114.
In the technique in Patent Document 1, a door frame garnish 116 is provided in the glass run holding portion 104.

The door frame garnish 116 is a synthetic resin component that covers the vehicle interior side surface 112 of the overhang portion 111, and prevents the vehicle interior side surface 112 of the overhang portion 111 from being exposed to the vehicle interior. The appearance of can be improved.
JP 2004-123007 A

However, the technique disclosed in Patent Document 1 has a problem that it is necessary to accurately cut the door frame garnish 116 at the belt line portion of the door frame 101. This point will be described with reference to FIGS.
As shown in FIG. 6, the door frame garnish 116 is provided along the inner periphery of the sash portion 120 of the door frame 101. What should be noted here is a portion indicated by reference numeral VII in FIG. 6, and this portion is shown in an enlarged manner in FIG. 7.

As shown in FIG. 7, the door frame garnish 116 is fixed along the rear frame portion 121 of the sash portion 120, but is cut so that the lower end portion 116 a coincides with the belt line portion 121. Is required, leading to an increase in cost.
A method is also conceivable in which the door frame garnish 116 is formed with an accurate dimension in advance so as to have a length that matches the entire length of the inner peripheral edge of the sash portion 120. However, the door frame garnish 116 is formed by extrusion molding or injection molding of a heated synthetic resin. Therefore, the door frame garnish 116 contracts during cooling, but it is difficult to accurately form the entire length in consideration of the contraction amount.

By the way, in the technique of Patent Document 1, the door frame garnish 116 and the glass run 105 are separately formed. However, a method of integrally forming the door frame garnish 116 and the glass run 105 is also conceivable.
However, as shown by the broken line in FIG. 7, the run channel 105 needs to extend from the rear frame portion 121 of the sash portion 120 to the inside of the door below the belt line portion 121, but the door frame garnish 116 is It cannot be extended inside the door. As described above with reference to FIG. 5, the door frame garnish 116 is provided to cover the vehicle interior side surface 112 of the overhang portion 111 and improve the appearance. When the frame garnish 116 extends inside the door, the above-mentioned purpose of improving the appearance cannot be achieved in the first place.

Therefore, even when the method of integrally forming the door frame garnish 116 and the glass run 105 is adopted, the work of cutting the lower end portion 116a with the belt line portion 121 is eventually required, which increases the cost. The problem of increased work processes cannot be solved.
The present invention has been devised in view of such a problem, and it is possible to improve the appearance of the inside of the vehicle while suppressing the cost and improve the sealing performance between the vehicle body and the door. An object is to provide a weatherstrip.

  In order to achieve the above object, a weather strip for a vehicle according to the present invention (Claim 1) includes a door having a door panel in which a window frame portion and a door body portion are integrally press-molded, and a vehicle opened and closed by the door. A weather strip for a vehicle that closes a gap between an edge of an opening formed in the vehicle body and the door, and a base fixed to the edge of the opening of the vehicle body, and provided on the base A contact portion that contacts the vicinity of the outer end of the door panel when the door closes the opening, and an extension protrusion that protrudes from the contact portion toward the door. When the door closes the opening, the door abuts against the inner edge of the window frame.

According to a second aspect of the present invention, there is provided the weather strip for a vehicle according to the first aspect of the present invention, wherein the extension protrusion is formed on the roof portion of the vehicle body when the door opens the opening. It is characterized by extending to the outside from the outer end.
According to a third aspect of the present invention, the weather strip for a vehicle according to the present invention is characterized in that, in the contents of the first or second aspect, the contact portion and the extension protrusion are integrally formed of foam rubber. .

According to the weather strip for a vehicle of the present invention, the appearance inside the vehicle can be improved and the sealing performance between the vehicle body and the door can be improved while suppressing the cost. (Claim 1)
In addition, since the extension protrusion receives water flowing from the outer end portion of the roof, it is possible to prevent the user of the vehicle from getting wet by the water, and to improve the usability of the user. (Claim 2)
In addition, by integrally molding the contact portion and the extended projection portion with foamed rubber, it is possible to contribute to weight reduction while improving production efficiency. (Claim 3)

  Hereinafter, a weather strip for a vehicle according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view illustrating a vehicle body to which the present invention is applied, and FIG. 2 is a front door closed. FIG. 3 is a schematic cross-sectional view taken along the line III-III in FIG. 2 and shows a case where the door is closed. FIG. 4 shows the door being opened in FIG. It is typical sectional drawing which shows a case.

As shown in FIG. 1, a vehicle body 11 of the vehicle 10 is formed with a front opening (opening) 12 and a rear opening (opening) 13. Further, as shown in FIG. 2, the front opening 12 and the rear opening 13 are opened and closed by a front door 20 and a rear door (not shown), respectively.
In the present embodiment, the description will be continued focusing on the front opening 12 and the front door 20.

As shown in FIG. 1, an opening weather strip inner (weather strip) 38 is provided on the entire periphery of the edge of the front opening 12, and a gap G ₁ between the front door 16 and the edge of the front opening 12. (To be described later with reference to FIG. 3) can be closed.
As shown in FIG. 2, the front door (door) 16 has a sash portion 21 that becomes a window frame of the window glass 19 and a door main body portion 22 formed below the sash portion 21 by press working. It is a so-called press door formed integrally. The door main body 22 has a built-in power window mechanism (not shown) so that the window glass 19 can be opened and closed.

As shown in FIG. 3, the front door 16 is mainly formed by an outer panel 17 and an inner panel (door panel) 18.
Further, the sash portion 21 is provided with a run channel holding portion 24 that holds a glass run channel 23 formed of solid rubber therein.
The run channel holding portion 24 is a component having a substantially U-shaped cross section in which the vehicle outer side wall portion 26, the vehicle inner side wall portion 27, and the bottom portion 28 are integrally formed.

Among these, the vehicle outer wall portion 26 is a wall portion welded to the outer panel 21, and the vehicle inner wall portion 27 is a wall portion welded to the inner panel 18. The bottom portion 28 is a wall portion formed between one end of the vehicle outer wall portion 26 and one end of the vehicle inner wall portion 27.
The inner panel 18 is a panel that forms the vehicle interior side of the front door 16.
As shown in FIG. 3, in the sash portion 21, the inner panel 18 is formed with a vehicle outer side flange portion 31, a pedestal portion 32, a protruding portion 33, and a vehicle inner side flange portion 34.

Of these, the vehicle outer flange portion 31 is a portion that contacts the outer panel 17 and is welded to the outer panel 17.
The pedestal portion 32 is a flat portion that extends from one end of the vehicle outer side flange portion 31 toward the vehicle interior side, and has a fixing hole 35 formed therein.
The fixing hole 35 is a hole into which a fixing pin 37 of an opening weather strip outer 36 described later is inserted.

The projecting portion 33 is a portion projecting to the vehicle interior side between one end of the pedestal portion 32 and one end of a vehicle interior flange portion 34 described later, and is a bulging portion of the opening weather strip inner 38 fixed to the vehicle body 11. 39 abuts.
The vehicle inner flange portion 34 is a portion that contacts the vehicle inner wall portion 27 of the run channel holding portion 24 and is welded to the vehicle inner wall portion 27, and forms an inner edge portion of the sash portion 21. Further, the inner flange portion 34 of the vehicle is in contact with an inner lip portion (extension projection portion) 41 of the opening weather strip inner 38.

The opening weatherstrip outer 36 is a foamed rubber weatherstrip fixed to the sash portion 21 of the front door 16, and when the front door 16 is closed (see FIG. 3), the front door 16 and the sash portion. It is possible to close the gap G ₁ between the two.
The opening weather strip outer 36 includes an outer base 42, an A outer lip 43, a B outer lip 44, and an outer bulging portion 45.

Among these, the outer base portion 42 is provided with a fixing pin 37 and is fixed to the pedestal portion 32 of the inner panel 18 via the fixing pin 37.
The A outer lip 43 protrudes from the outer base portion 42 and comes into contact with the roof panel 46 of the vehicle body 11 when the front door 16 is closed.
The B outer lip 44 is also a lip protruding from the outer base portion 42, but is in contact with the front panel 17 welded to the vehicle outer flange 31 regardless of whether the front door 16 is opened or closed.

  The outer bulging portion 45 is a portion having a hollow cross section bulged from the outer base portion 42 and is essentially formed in a substantially circular shape as shown in FIG. And when the front door 16 is closed (refer FIG. 3), it will contact | abut to the roof panel 46 of the vehicle body 11, and will be crushed by elastic deformation in that case. The outer bulging portion 45 is provided on the vehicle interior side with respect to the A outer lip 31. Therefore, the contact location between the outer bulging portion 45 and the roof panel 46 is closer to the vehicle interior side than the contact location between the A outer lip 31 and the roof panel 46.

The opening weather strip inner 38 is a weather strip fixed to the vehicle body 11 so that the gap G ₁ between the vehicle body 11 and the sash portion 21 can be closed when the front door 16 is closed. It has become. The opening weather strip inner 38 can also close a gap G ₂ formed in the vicinity of an end portion of the roof lining 47 provided in the vehicle interior.

The opening weather strip inner 38 is formed with an inner base 48, an inner bulging portion 39, a vehicle compartment lip 49 and an inner lip 41. The inner base 48, the inner bulging portion 39, the passenger compartment lip 49, and the inner lip 41 are all integrally formed by extruding foam rubber.
Among these, the inner base portion 48 is a substantially U-shaped portion in which a metal core 51 is incorporated and is fixed to the opening flange portion 52 of the vehicle body 11. The opening flange portion 52 of the vehicle body 11 is a flange to which the roof panel 46, the pillar reinforcement outer A 53, the pillar reinforcement outer B 54, and the pillar reinforcement inner 55 of the vehicle body 11 are welded. Forming part.

The inner bulging portion 39 is a hollow portion that bulges from the inner base portion 48 to the front door 16 side (the vehicle outer side), and is essentially formed in a substantially circular shape as shown in FIG. Yes. Further, when the front door 16 is closed (see FIG. 3), the inner bulging portion 39 comes into contact with the protruding portion 33 of the sash portion 12, and is elastically deformed to be crushed.
The vehicle interior lip 49 is a lip protruding from the inner base 48 toward the vehicle interior, and closes the gap G ₂ formed between the roof lining 47 and the opening flange portion 52.

The inner lip 41 is a substantially L-shaped lip protruding from the inner bulging portion 39 to the vehicle outer side, and when the front door 16 is closed (see FIG. 3), the inner lip 41 is elastically deformed and crushed, and the sash It is configured to come into contact with the vehicle inner flange portion 34 of the portion 12.
Further, the inner lip 41 has the front door 16 side so that, when the front door 16 is opened (see FIG. 4), the front end portion 41a is positioned on the vehicle outer side with respect to the outer end portion 46a of the roof panel 46. It can be restored and deformed to extend.

  Further, the inner lip 41 can be deformed and deformed so that the front end portion 41a is positioned on the vehicle outer side with respect to the outer end portion 46a of the roof panel 46 when the front door 16 is opened. As a result, as shown by an arrow W in FIG. 4, water that flows down through the roof panel 46 when the front door 16 is opened can be received by the inner lip 41 in rainy weather or snowy weather. It has become.

Since the weather strip for a vehicle according to an embodiment of the present invention is configured as described above, the following operations and effects are achieved.
By the front door 12 being opened is closed (see arrow in FIG. 4 A _1), when the front door 10 is closed, as shown in FIG. 3, the outer bulging portion 45 and the A opening weather strip outer 36 The outer lip 43 abuts against the roof panel 46 and is elastically deformed so as to be crushed, thereby reliably closing the gap G ₁ between the front door 16 and the sash portion 21.

As a result, it is possible to prevent a situation in which the entering noise and water into the passenger compartment through the gap G ₁ from the outside of the vehicle.
Further, the inner bulging portion 39 of the opening weather strip inner 38 provided in the opening flange portion 52 of the vehicle body 11 comes into contact with the protruding portion 33 of the sash portion 12 and is elastically deformed so as to be crushed, thereby forming the gap G ₁ . Furthermore, it closes reliably.

Thereby, the situation where the air adjusted by the air conditioner flows out of the vehicle through the gap G ₁ can be prevented, and the situation where voice and sound in the vehicle compartment leak out of the vehicle through the gap G ₁ can be prevented.
Of course, in theory, the above-described soundproofing, airtightness and liquid-tightness can be ensured by any one of the opening weatherstrip outer 36 and the opening weatherstrip inner 38, but by providing both, The soundproofing, airtightness, and liquid-tightness can be ensured at a high level.

As shown in FIG. 3, when the front door 12 is closed, the inner lip 41 comes into contact with the vehicle inner flange portion 34 of the sash portion 12 while being elastically deformed so as to be crushed.
Thus, while enhancing soundproofing, airtightness and liquid tightness, that is, sealing performance, the user's line of sight to the inside flange 34 and the protruding portion 33 inside the sash portion 21, that is, the inner panel 18 of the front door 16 ( 3 arrow a ₂ reference) can block the.

The inner panel 18 is usually painted in the same color as the exterior color of the front door 16, and in some cases, it may be assumed that a color that is difficult to match the atmosphere in the vehicle interior is exposed in the vehicle interior.
On the other hand, in this invention in this embodiment, since the inner lip 41 covers the inner panel 18, the situation where the user in a vehicle interior visually recognizes the coating surface of the inner panel 18 is prevented, and the appearance of the vehicle interior is improved. It can be improved.

On the other hand, as shown by the arrow A ₃ in FIG. 3, when the front door 16 is opened, as shown in FIG. 4, the inner lip 41 is restored and deformed so that the tip 41a extends to the front door 16 side. And it is located in the vehicle outside rather than the outer end 46a of the roof panel 46.
As a result, as shown by an arrow W in FIG. 4, the water flowing down along the roof panel 46 can be received by the inner lip 41 in rainy weather or snowy weather.

Therefore, it is possible to prevent a user getting in and out of the vehicle interior through the front opening 12 from getting wet and to improve user convenience.
The inner lip 41 is formed by extruding foam rubber. Therefore, the weight can be significantly reduced as compared with the case where a part of the glass run channel 23 formed of the solid rubber is protruded toward the vehicle interior side.

However, a method of forming a part of the glass run channel 23 with foamed rubber and projecting this part to the vehicle interior side is also theoretically conceivable. However, in this case, not only the manufacturing process of the glass run channel 23 becomes complicated, but also the time required for the manufacturing increases, which causes a problem of reducing the production efficiency.
On the other hand, in the present invention according to the present embodiment, the inner lip 41 is formed by extruding foamed rubber, so that the weight can be reduced without causing the above-described problems.

  Furthermore, the opening weather strip inner 38 is not limited to the inner lip 41, and the inner base 48, the inner bulging portion 39 and the vehicle compartment lip 49 are all formed of foamed rubber. The opening weather strip inner 38 can be formed by general-purpose extrusion molding. Therefore, it can also contribute to cost reduction.

Further, as described with reference to FIGS. 6 and 7 as an example of the prior art, when the method of integrally forming the door frame garnish 116 and the glass run 105 is adopted, the lower end portion 116a is formed as a belt line portion. According to the present invention according to the present embodiment, the work of cutting at 121 can be made unnecessary.
Accordingly, it is possible to reduce costs by preventing an unnecessary effort at the time of manufacturing the front door 16, and a portion of the door frame garnish 116 that is wasted by being cut. It is also possible to prevent the situation that occurs, which can contribute to the protection of the global environment.

Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and various modifications can be made without departing from the spirit of the present invention.
In the above-described embodiment, the case where the opening weather strip outer 36 is provided on the front door 16 and the opening weather strip inner 38 is provided on the opening flange portion 52 that is the edge of the front opening 12 has been described as an example. However, the present invention is not limited to such a case. For example, the opening weather strip outer 36 may be provided on the rear door, and the opening weather strip inner 38 may be provided on the edge of the rear opening 13.

  Further, the inner lip 41 formed on the opening weather strip inner 38 may be formed on the entire circumference of the opening weather strip inner 38 or only on the portion of the opening weather strip inner 38 where the sash portion 21 abuts. You may do it.

1 is a schematic side view showing a vehicle body of a vehicle to which a vehicle weather strip according to an embodiment of the present invention is applied. 1 is a schematic side view showing a vehicle body to which a vehicle weather strip according to an embodiment of the present invention is applied, and shows a case where a front door is provided on the vehicle body. It is typical sectional drawing which shows the whole structure of the weather strip for vehicles which concerns on one Embodiment of this invention, Comprising: The case where the door is closed is shown. It is typical sectional drawing which shows the whole structure of the weather strip for vehicles which concerns on one Embodiment of this invention, Comprising: The case where the door is opened is shown. It is typical sectional drawing which shows the seal structure which concerns on a prior art. It is a schematic diagram which shows the vehicle door to which the seal structure which concerns on a prior art was applied. FIG. 7 shows a vehicle door to which a sealing structure according to the prior art is applied, and is a schematic enlarged view of a portion indicated by reference numeral VII in FIG.

Explanation of symbols

10 vehicle 11 vehicle body 12 front opening (opening)
16 Front door
18 Inner panel (door panel)
21 Sash part (window frame part)
22 Door body 34 Car interior flange (inner edge of window frame)
39 Inner bulging part (contact part)
52 Opening flange 52 (edge of opening)
41 Inner lip (extension protrusion)
46 Roof panel (roof)
46a Outer edge of roof panel (outer edge of roof)
48 Inner base (base)

Claims (3)

A vehicle having a door having a door panel in which a window frame portion and a door body portion are integrally press-molded, and a vehicle that blocks a gap between the edge portion of the opening formed in the vehicle body of the vehicle that is opened and closed by the door and the door Weather strip for
A base fixed to an edge of the opening of the vehicle body;
A contact portion that is provided at the base and contacts the vicinity of the outer end of the door panel when the door closes the opening;
An extended protruding portion protruding from the contact portion toward the door,
The weather strip for a vehicle, wherein the extension protrusion abuts against an inner edge of the window frame when the door closes the opening. 2. The vehicle-use vehicle according to claim 1, wherein when the door opens the opening, the extension protrusion extends to the outside of the outer end of the roof of the vehicle body. Weather strip. The weather strip for a vehicle according to claim 1, wherein the abutting portion and the extended protruding portion are integrally formed of foamed rubber.

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