JP2011084126A - Seal material for opening/closing door and seal material assembly using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seal material for an opening/closing door allowing improvement of adhesion in relation to a door panel and satisfactorily maintaining of sealing property. <P>SOLUTION: This seal material 32 includes a base part 40, a first seal part 50 formed integrally with the base part 40 to be in contact with an opening edge part 2 of a vehicle body panel 1 in a mounted state, a second seal part 55 to be in contact with an opening edge part 2 of the vehicle body panel 1, and a third seal part 60 in contact with a side wall surface 23 of the door panel 20. A distal end side part of the third seal part 60 is made an easily deformable part 62 integrally molded by high foaming sponge rubber. The second seal part 55 is bent by being brought into pressure contact with the vehicle body panel 1 when the opening/closing door 11 is closed, and thereby the third seal part 60 is pressed in a direction of the side wall surface 23 of the door panel 20. As a result, the distal end of the easily deformable part 62 is brought into pressure contact with the side wall surface 23 of the door panel 20 with large force applied with pressing force of the second seal part 55 and is pressed and spread in a width direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an opening / closing door sealing material, and more particularly, to seal between a door opening edge of a vehicle body panel and an opening / closing door (front door, rear door, etc.) attached to the opening edge so as to be opened and closed. In addition, an opening / closing door sealing material (a long sealing material sometimes referred to as a door weather strip, hereinafter simply referred to as a sealing material) attached to the peripheral edge of the door panel of the opening / closing door and a sealing material assembly using the sealing material Concerning solids.

Conventionally, in an opening / closing door sealing material for sealing between a door opening edge of a vehicle body panel and an opening / closing door attached to the opening edge so as to be openable / closable, a base attached to a retainer of the door panel, and the base A structure having a hollow seal portion projecting from an opening edge portion of the vehicle body panel to the vehicle body panel is generally used.
In the sealing material for an open / close door having such a structure, for example, when pressure from the outside of the vehicle, such as during high-pressure car washing, acts on the sealing material, a gap may be generated between the sealing material and the side wall surface of the door panel or the retainer. is there. In this case, there is a problem that so-called diving water is generated in which the cleaning water enters the vehicle interior through the gap.
In order to prevent such inconvenience, there is one in which a water leak prevention seal portion is provided at the base of the seal lip formed on the vehicle outer side portion of the base portion (base portion) of the seal material (weather strip) (for example, , See Patent Document 1).
In addition, there is also one that reduces the door closing sound without impairing the sealing performance by providing a high foamed sponge layer on at least one of the base (base) and the seal lip (back lip) (see, for example, Patent Document 2). ).

JP 7-257180 A JP 2003-182374 A

By the way, in what was disclosed by patent document 1, the contact state of the water leak prevention seal part with respect to a door panel changes by the erection of a door panel (a retainer part is also included), the "variation" of the assembly | attachment of a sealing material, etc. And partial adhesion failure is likely to occur.
Moreover, also in what was disclosed by patent document 2, the contact state of the seal lip with respect to a door panel tends to change. And it is difficult to absorb the change by elastic deformation of the highly foamed sponge layer, and partial adhesion failure tends to occur.

  In view of the above problems, an object of the present invention is to improve the adhesion to the door panel, and as a result, to maintain a good sealing performance, and a seal using the sealing material. It is to provide a material assembly.

In order to solve the above-mentioned problem, a door sealing material according to claim 1 of the present invention seals between a door opening edge of a vehicle body panel and an opening / closing door attached to the opening edge so as to be opened and closed. In order to do this, it is a long opening / closing door sealing material attached to the door panel peripheral edge of the opening / closing door,
The seal material is attached to the door panel, and protrudes from an inboard portion of the base portion toward the opening edge of the vehicle body panel in an attached state, and is capable of coming into contact with the opening edge portion of the vehicle body panel. A first seal portion formed integrally, a second seal portion projecting from an outer portion of the base portion toward the opening edge portion of the vehicle body panel and capable of contacting the opening edge portion of the vehicle body panel; A third seal portion projecting from the two seal portions toward the side wall surface of the door panel and contacting the side wall surface of the door panel;
The tip side portion of the third seal portion is an easily deformable portion integrally formed of high foam sponge rubber,
When the opening / closing door is closed, the second seal portion is pressed against the body panel and bent, whereby the third seal portion is pressed toward the side wall surface of the door panel, so that the tip of the easily deformable portion Is pressed against the side wall surface of the door panel with a large force to which the pressing force of the second seal portion is applied, and pushes and spreads in the width direction.

According to the said structure, a 3rd seal part is pressed to the direction of the side wall surface of a door panel by a 2nd seal part being pressed and bent to a vehicle body panel at the time of a door closing. As a result, the tip of the easily deformable portion is pressed against the side wall surface of the door panel with a large force applied by the pressing force of the second seal portion, and is pushed and spread in the width direction, thereby ensuring the adhesion of the easily deformable portion to the door panel. The
As described above, by securing the adhesion of the easily deformable portion to the door panel, even if there is "variation" in the installation of the door panel (including the retainer portion) or the assembly of the sealing material, the " The “variation” and the like can be satisfactorily absorbed by the elastic deformation of the easily deformable portion made of the highly foamed sponge rubber.
As a result, the adhesion of the sealing material to the door panel can be improved, and the sealing performance can be maintained well over a long period of time.

The opening / closing door sealing material according to claim 2 is the opening / closing door sealing material according to claim 1,
When the first seal portion elastically deforms by elastic contact with the vehicle body panel, the first seal portion is displaced toward the bent second seal portion and presses the third seal portion toward the side wall surface of the door panel via the second seal portion. Thus, the tip of the easily deformable portion is pressed against the side wall surface of the door panel.

According to the above configuration, when the door is closed, the second seal portion is pressed against the vehicle body panel and bent, and the first seal portion is elastically deformed in the direction of the bent second seal portion by elastic contact with the vehicle body panel. .
Then, the pressing force by the first seal portion is applied to the second seal portion, and the third seal portion is pressed to the side wall surface side of the door panel 20 with a force that is larger by the pressing force by the first seal portion.
As a result, the tip of the easily deformable portion of the third seal portion is pressed against the side wall surface of the door panel with a large force applied by the pressing force of the second seal portion, and is elastically deformed well so as to be pushed and spread in the width direction.
As a result, the contact area of the easily deformable portion with respect to the side wall surface of the door panel increases.
Therefore, according to the invention of claim 2, in addition to the effects of the invention of claim 1, the adhesion of the sealing material to the door panel can be improved.

The opening / closing door sealing material according to claim 3 is the opening / closing door sealing material according to claim 1 or 2,
The density of the highly foamed sponge rubber forming the easily deformable portion is 0.15 to 0.35 g / cm ³ , and the density of the portion other than the easily deformable portion of the sealing material is 0.45 to 0.65 g / cm 3. ³ and the sealing material is integrally formed by coextrusion molding.

According to the arrangement, the density of the highly foamed sponge rubber forming the easily deformable portion is a 0.15~0.35g / cm ^3, the density of the portion other than the easily deformable part of the sealing member, from 0.45 to 0 .65 g / cm ³ allows the reaction force accompanying the elastic deformation of the first and second seal portions when the door is closed to be appropriately sized and easily deforms the easily deformable portion. It can adhere | attach well on the side wall surface of a door panel.
That is, when the density of the highly foamed sponge rubber forming the easily deformable portion is set to be smaller than 0.15 g / cm ³ , the pressing force of the easily deformable portion with respect to the side wall surface of the door panel is insufficient, and the adhesion cannot be secured. When the density of the highly foamed sponge rubber is set to be larger than 0.35 g / cm ³ , the easily deformable portion is difficult to elastically deform and is pressed by the first seal portion and the second seal portion when the door is closed. Thus, it is assumed that there is a problem that it is difficult to make a good close contact with the side wall surface of the door panel by being elastically deformed so as to spread in the width direction.
Furthermore, when the density of the portion other than the easily deformable portion of the sealing material is set to be smaller than 0.45 g / cm ^3, a problem that the sealing performance between the vehicle body panel and the first and second sealing portions is deteriorated is assumed. If the density of the portion other than the easily deformable portion of the sealing material is set to be larger than 0.65 g / cm ³ , a problem that the force required for closing the door becomes excessive is assumed.
As described above, by setting the density of the easily deformable portion and the density of portions other than the easily deformable portion of the sealing material, it is possible to prevent the occurrence of each of the above problems.
Therefore, according to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, it is possible to further improve the adhesion to the door panel while appropriately securing the force required for closing the door. .

The opening / closing door sealing material according to claim 4 is the opening / closing door sealing material according to any one of claims 1 to 3,
The 1st seal part is formed in the cross section hollow shape, It is characterized by the above-mentioned.

According to the above configuration, when the door is closed, the first seal portion having a hollow cross section is elastically contacted with the vehicle body panel in a surface contact state, and is favorably elastically deformed in the direction of the bent second seal portion. For this reason, the first seal portion can elastically contact the vehicle body panel with an appropriate force, and the second seal portion can be pressed toward the side wall surface of the door panel.
Therefore, according to invention of Claim 4, in addition to the effect of the invention of any one of Claims 1-3, an effect is large at the improvement of the adhesiveness with respect to the door panel of a sealing material.

The opening / closing door sealing material according to claim 5 is the opening / closing door sealing material according to any one of claims 1 to 4,
The second seal part is characterized in that the center part in the height direction in the mounted state is formed in an L-shaped cross section projecting toward the inside of the vehicle, and the projecting bent part is bendable.

According to the above configuration, when the second seal portion is pressed against the vehicle body panel when the door is closed, the second seal portion is easily elastically deformed and bent at the bent portion at the central portion in the height direction. The 3 seal part is pressed well in the direction of the side wall surface of the door panel.
Therefore, according to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the third seal portion is favorably pressed toward the side wall surface of the door panel, and the easily deformable portion Can be brought into close contact with the side wall surface of the door panel with an appropriate force. As a result, the easily deformable portion can be brought into close contact with the door panel to improve the sealing performance of the sealing material.

The opening / closing door sealing material according to claim 6 is the opening / closing door sealing material according to any one of claims 1 to 5,
The easily deformable portion is formed in a rectangular shape in cross section, and a tip surface elastically contacting the side wall surface of the door panel is a flat surface.

According to the said structure, the flat surface of the front end surface of the easily deformable part formed in the cross-sectional rectangle adheres to the side wall surface of a door panel stably in a surface contact state.
Therefore, according to invention of Claim 6, in addition to the effect of the invention of any one of Claims 1-5, an effect is large at the improvement of the sealing performance of the sealing material with respect to a door panel.

The opening / closing door sealing material according to claim 7 is the opening / closing door sealing material according to any one of claims 1 to 6,
The open / close door is a sash door, and a base portion of the sealing material is configured to be fitted into a retainer provided on a door panel of the sash door.

According to the said structure, a sealing material can be easily mounted | worn with a sash door by fitting the base part of a sealing material with respect to the retainer provided in the door panel of a sash door.
Therefore, according to the invention of claim 7, in addition to the effect of the invention of any one of claims 1 to 6, it can be suitably used for a sash door in which a door panel is provided with a retainer, and a sash door Greatly improves sealing performance.

An opening / closing door sealing material according to claim 8 is the opening / closing door sealing material according to any one of claims 1 to 6,
The open / close door is a panel door, and a clip that can be engaged by being inserted into a mounting hole of the door panel is attached to the base of the seal material.

According to the above-described configuration, the sealing material can be easily attached to the panel door by inserting and engaging the clip of the base portion of the sealing material into the mounting hole of the door panel of the panel door where no retainer is present.
Therefore, according to the invention of claim 8, in addition to the effect of the invention of any one of claims 1 to 6, it can be suitably used for a panel door and has a great effect on improving the sealing performance of the panel door. .

A sealant assembly using the sealing material for an opening / closing door according to claim 9 is a sealing material assembly using the sealing material for an opening / closing door according to any one of claims 1 to 8,
The sealing material assembly includes a first molded body at a portion disposed from an upper edge portion of the opening / closing door to a front side or a rear inclined portion, and a lower edge portion and a front side from the rear side or front vertical edge portion of the opening / closing door. Alternatively, the second molded body of the portion disposed over the rear vertical edge is joined by a joined body formed by injection molding,
The first molded body and the second molded body are formed by extrusion,
The first molded body is formed with a first seal portion, a second seal portion, and a third seal portion having an easily deformable portion at the tip, while the second molded body has a first seal portion. Although formed, the second seal portion and the second seal portion are not formed.

According to the above configuration, the sealing performance can be efficiently ensured by disposing the first molded body having the first to third seal portions in a portion where water can easily enter in the door panel peripheral portion of the open / close door. The second molded body can be arranged in a portion where water is difficult to enter and can be maintained in an appropriate range without excessively increasing the force required to close the door.
Therefore, according to the invention of claim 9, in addition to the effect of the invention of any one of claims 1 to 8, the sealing material assembly appropriately improves the sealing performance of the open / close door and the force required to close the door. The effect is great.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a vehicle in which a state in which a door sealing material according to Embodiment 1 of the present invention is assembled to a vehicle door is shown in a simplified manner. It is a cross-sectional view along II-II line of FIG. It is a front view which similarly shows a sealing material assembly. It is a cross-sectional view which follows the IV-IV line of FIG. It is a cross-sectional view which shows the state with which the sealing material for opening / closing doors which concerns on Example 2 of this invention was mounted | worn with the press door as an opening / closing door with a clip. It is a cross-sectional view which similarly shows the sealing material of a free state.

  The best mode for carrying out the present invention will be described in accordance with an embodiment.

A first embodiment of the present invention will be described with reference to FIGS.
As illustrated in FIG. 1, the case where the opening / closing door sealing material according to the first embodiment is employed in a front sash door 11 as an opening / closing door is illustrated.
As shown in FIG. 2, the opening edge 2 corresponding to the sash door 11 of the vehicle body panel 1 includes a peripheral wall 3 and a side wall 4 and is formed in a stepped shape. The sash door 11 is attached to one side (front side) of the opening edge 2 of the vehicle body panel 1 so as to be opened and closed by a hinge mechanism (not shown).
A retainer 24 corresponding to the sealing material is provided on the upper edge portion 14 and the front inclined portion 15 of the door sash portion (window frame portion) 13 of the sash door 11.
That is, the retainer 24 is integrally bent and formed at the edge of the outer panel 22 of the door panel 20 constituting the door sash portion 13. The retainer 24 includes a fitting recess 25 and a vehicle inner side locking portion 26 and a vehicle outer side locking portion 27 protruding so as to narrow the opening at both ends of the opening of the fitting concave portion 25. ing.
The bottom of the fitting recess 25 is fixed to the inner panel 21 of the door panel 20 by spot welding or the like.

  As shown in FIGS. 2 and 3, the sealing material assembly 30 using the sealing material for sealing between the opening edge portion 2 of the vehicle body panel 1 and the sash door 11 includes both the first and second sealing materials. The molded bodies 32 and 33 and the first and second bonded bodies 34 and 35 that join both the first and second molded bodies 32 and 33 are formed in an annular shape.

Both the first and second molded bodies 32 and 33 of the sealing material assembly 30 are formed by an extrusion molded product that is elongated by extrusion molding of an elastic material such as rubber (for example, EPDM) or soft resin (for example, TPO). Is formed.
Moreover, the 1st molded object (equivalent to the sealing material of this invention) 32 is arrange | positioned in the part of the upper edge part 14 and the front side inclination part 15 of the door sash part 13 which is a part into which water penetrates easily.
On the other hand, the second molded body 33 is located behind the rear upper vertical edge portion 17 of the sash door 11, which is a portion in which water is difficult to enter, and the main body portion of the sash door 11 continuous below the rear upper vertical edge portion 17. It is disposed across the lower side vertical edge 18, the lower side edge 19 and the front side vertical edge 16.
And the 1st joined body 34 (the part of the 1st molded object 32 corresponding to the upper edge part 14, and the back | inner part) in which the edge parts which both the 1st, 2nd molded bodies 32 and 33 oppose were formed by injection molding. A corner portion which is a joint portion with the portion of the second molded body 33 corresponding to the side upper vertical edge portion 17; a second joint body 35 (a portion of the first molded body 32 corresponding to the front inclined portion 15; and the front side. The sealing material assembly 30 formed in an annular shape is configured by being joined by a joining portion with a portion of the second molded body 35 corresponding to the vertical edge portion 16.
The first and second joined bodies 34 and 35 are preferably injection-molded with EPDM sponge rubber, which is similar to the first and second molded bodies 32 and 33.

As shown in FIGS. 2 and 4, the first molded body 32 corresponding to the sealing material of the present invention includes a base (mounting base) 40, a first seal portion (main seal portion) 50, and a second seal. A portion (sub seal lip) 55 and a third seal portion (back lip) 60 are provided.
The base portion 40 is fitted and attached to the retainer 24, and the vehicle interior side portion 41 of the base portion 40 is engaged with the vehicle inner side latching portion 26 when the base portion 40 is fitted in the fitting concave portion 25 of the retainer 24. An inboard engagement protrusion 42 that forms a stop is formed, and an outboard engagement protrusion 44 that engages with the outboard engagement portion 27 of the retainer 24 to prevent the retainer 24 from being formed on the inboard portion 43. A hollow portion 45 is formed in the central portion of the base portion 40.

In addition, the first seal portion 50 protrudes from the inboard side portion 41 of the base portion 40 toward the side wall portion 4 of the opening edge portion 2 of the vehicle body panel 1 in the mounted state, and can be brought into contact with the opening edge portion 2 of the vehicle body panel 1. 40 is formed integrally. Furthermore, the 1st seal | sticker part 50 has the hollow part 51 inside, and is formed in the cross-sectional hollow shape.
Further, in the first embodiment, among the peripheral wall portions constituting the hollow portion 51 of the first seal portion 50, the thickness of the vehicle inner peripheral wall portion 52 is formed to be thicker than the wall thickness of the vehicle outer peripheral wall portion 54, so that the rigidity is increased. Has been enhanced.
As a result, as shown in FIG. 2, when the sash door 11 is closed, the inner peripheral wall portion 52 of the first seal portion 50 is not waved when being pressed against the side wall portion 4 of the opening edge portion 2 of the vehicle body panel 1. While maintaining the surface contact state and elastically deforming and closely contacting, the vehicle outer peripheral wall portion 54 is displaced in the direction of the second seal portion 55 by a sufficient amount to press the second seal portion 55 in the vehicle outer direction.

The second seal portion 55 protrudes from the vehicle outer portion 43 of the base portion 40 toward the peripheral wall portion 3 of the opening edge portion 2 of the vehicle body panel 1 and can contact the peripheral wall portion 3 of the opening edge portion 2 of the vehicle body panel 1.
In the first embodiment, the second seal portion 55 is attached in the width direction (direction between the root portion and the tip portion of the second seal portion 55 or between the base portion 40 and the tip portion of the first seal portion 50). Is formed in a L-shaped cross section that protrudes toward the vehicle interior, and can be bent at the protruding bent portion 57.

The third seal portion 60 protrudes from the vicinity of the base portion of the second seal portion 55 toward the side wall portion (side wall surface) 23 in the vicinity of the retainer 24 of the door panel 20 and contacts the side wall portion 23 of the door panel 20.
As shown in FIGS. 2 and 4, the tip side portion of the third seal portion 60 is an easily deformable portion 62 that is integrally formed of a highly foamed sponge rubber.
As shown in FIG. 4, the easily deformable portion 62 is formed in a rectangular shape in cross section, and the front end surface that elastically contacts the side wall portion (side wall surface) 23 in the vicinity of the retainer 24 of the door panel 20 forms a flat surface.
Further, the easily deformable portion 62 is formed in a trapezoidal shape having a wide base at the cross section and gradually narrowing toward the tip, but the width of the root and the tip is equal or The root portion may be narrow and the tip portion may be wide.
As shown in FIG. 2, when the sash door 11 is closed, the second seal portion 55 is pressed against the peripheral wall portion 3 of the opening edge 2 of the vehicle body panel 1 and bent, and the first seal portion 50 is connected to the vehicle body panel 1. Is elastically deformed by elastic contact with the side wall 4 of the opening edge 2 of the opening 2 and is displaced in the direction of the bent second seal portion 55 to press the second seal portion 55 in the vehicle outer direction. By pressing the seal portion 60 toward the side wall portion 23 in the vicinity of the retainer 24 of the door panel 20, the front end of the easily deformable portion 62 applies the pressing force of the first seal portion 50 and the pressing force of the second seal portion 55 is applied. It is pressed against the side wall 23 of the door panel 20 with a large force and spreads in the width direction.

The density of the highly foamed sponge rubber (for example, EPDM sponge rubber) that forms the easily deformable portion 62 is preferably set to 0.10 to 0.40 g / cm ³ , and is 0.25 ± 0.10 g / cm 3. More preferably, it is set to ³ .
Further, the density of the foamed sponge rubber portion (for example, EPDM sponge rubber) other than the easily deformable portion 62 of the first molded body 32 forming the sealing material may be set to 0.40 to 0.70 g / cm ^3. Preferably, it is more preferably set to 0.55 ± 0.10 g / cm ³ .
And the 1st molded object 32 which comprises the sealing material assembly 30 is integrally molded by coextrusion molding.

Further, the second molded body 33 of the sealing material assembly 30 is formed with a base portion and a first seal portion having a hollow cross section, but the second seal portion 55 and the third seal portion 60 are formed. Not.
Moreover, since the retainer is not provided in the lower edge part 19 and the front side vertical edge part 16 of the door panel 20 which comprise the main-body part of the sash door 11, several attachment holes (not shown) are arrange | positioned, those A plurality of clips (not shown) are arranged at predetermined intervals in the longitudinal direction at the base (not shown) of the second molded body 33 corresponding to the location.
The second molded body 33 is mounted along the lower edge 19 and the front vertical edge 16 of the door panel 20 by engaging the plurality of clips inserted into the plurality of mounting holes of the door panel 20. Is done.

The opening / closing door sealing material according to the first embodiment is configured as described above.
Therefore, when the door of the sash door 11 is closed, the second seal portion 55 of the first molded body 32 as a seal material is pressed against the peripheral wall portion 3 of the opening edge portion 2 of the vehicle body panel 1 and is bent, whereby the third seal The portion 60 is pressed toward the side wall portion (side wall surface) 23 in the vicinity of the retainer 24 of the door panel 20. As a result, the tip of the easily deformable portion 62 is pressed against the side wall portion 23 of the door panel 20 with a large force to which the pressing force of the second seal portion 55 is applied, and also spreads in the width direction. For this reason, the adhesiveness of the easily deformable part 62 with respect to the side wall part 23 of the door panel 20 is ensured favorably.
As described above, by ensuring good adhesion of the easily deformable portion 62 with respect to the side wall portion 23 of the door panel 20, “variation” of the installation of the door panel 20 and the assembly of the first molded body 32 as a sealing material is performed. ”And the like, the“ variation ”can be satisfactorily absorbed by the elastic deformation of the easily deformable portion 62 made of highly foamed sponge rubber.
As a result, it is possible to improve the adhesion of the first molded body 32 as the sealing material to the side wall portion 23 of the door panel 20, and as a result, it is possible to maintain the sealing performance well over a long period of time.

In the first embodiment, when the door of the sash door 11 is closed, the second seal portion 55 is pressed against the peripheral wall portion 3 of the opening edge 2 of the vehicle body panel 1 and is easily elastically deformed and bent at the bent portion 57. The first seal portion 50 is elastically contacted with the side wall portion 4 of the opening edge portion 2 of the vehicle body panel 1, thereby being displaced (elastically deformed) in the direction of the bent second seal portion 55.
Then, the pressing force by the first seal portion 50 is applied to the second seal portion 55, and the third seal portion 60 is pressed toward the side wall portion 23 side of the door panel 20 with a force that is larger by the pressing force by the first seal portion 50.
As a result, the tip of the easily deformable portion 62 of the third seal portion 60 is pressed against the side wall portion 23 of the door panel 20 and greatly spreads in the width direction.
As a result, since the contact area of the easily deformable portion 62 with respect to the side wall portion 23 of the door panel 20 increases, the adhesion of the easily deformable portion 62 to the side wall portion 23 of the door panel 20 can be improved satisfactorily.

In Example 1, the density of the highly foamed sponge rubber forming the easily deformable portion 62 is 0.10 to 0.40 (more preferably 0.15 to 0.35) g / cm ^3, and the seal The density of the portion other than the easily deformable portion 62 of the first molded body 32 constituting the material is 0.40 to 0.70 (more preferably 0.45 to 0.65) g / cm ³ , The reaction force accompanying the elastic deformation of the first and second seal portions 50 and 55 when the door is closed can be set to an appropriate magnitude, and the easily deformable portion 62 can be easily deformed to push the tip in the width direction. It is possible to satisfactorily adhere to the side wall 23 of the door panel 20.
That is, when the density of the highly foamed sponge rubber forming the easily deformable portion 62 is set to be smaller than 0.10 (more preferably 0.15) g / cm ^{3, the} easily deformable portion 62 with respect to the side wall portion 23 of the door panel 20 is set. If the density of the highly foamed sponge rubber is set to be larger than 0.40 (more preferably 0.35) g / cm ³ , an easily deformable portion is assumed. 62 becomes difficult to be elastically deformed, and is easily pressed elastically by the first seal portion 50 and the second seal portion 55 when the door is closed, making it difficult to make good contact with the side wall portion 4 of the vehicle body panel 1. Is assumed.
Furthermore, when the density of the portion other than the easily deformable portion 62 of the first molded body 32 is set to be smaller than 0.40 (more preferably 0.45) g / cm ³ , the vehicle body panel 1 has a shape relative to the opening edge 2. Due to insufficient pressing force of the first and second seal portions 50 and 55, the sealing performance between the peripheral wall portion 3 and the side wall portion 4 of the opening edge portion 2 of the vehicle body panel 1 and the first and second seal portions 50 and 55. If the density of the portion other than the easily deformable portion 62 of the first molded body 32 is set to be greater than 0.70 (more preferably 0.65) g / cm ³ , the vehicle body panel 1 It is assumed that the resilience of the first and second seal portions 50 and 55 with respect to the opening edge portion 2 increases and the force required to close the door of the sash door 11 becomes excessive.
As described above, by setting the density of the easily deformable portion 62 of the first molded body 32 and the density of portions other than the easily deformable portion 62, the occurrence of each of the above problems can be prevented.
As a result, the adhesion to the door panel 20 can be further improved while ensuring the force required to close the sash door 11 appropriately.

Further, in the first embodiment, when the door is closed, the first seal portion 50 having a hollow cross section is elastically deformed by elastic contact with the side wall portion 4 of the opening edge portion 2 of the vehicle body panel 1 in a surface contact state, and is bent. 2 Displaces well in the direction of the seal portion 55. For this reason, the first seal portion 50 is elastically contacted with the side wall portion 4 of the opening edge portion 2 of the vehicle body panel 1 with an appropriate force, and the second seal portion 55 is pressed in the vehicle outer side direction, which is effective in improving the adhesion. large.
Further, when the second seal portion 55 is pressed against the peripheral wall portion 3 of the opening edge portion 2 of the vehicle body panel 1 when the door is closed, the second seal portion 55 is easily elastically deformed at the bent portion 57 at the central portion in the width direction. Thus, the third seal portion 60 is favorably pressed toward the side wall portion 23 of the door panel 20.
In this way, the third seal portion 60 is pressed well in the direction of the side wall portion 23 of the door panel 20, and the front end of the easily deformable portion 62 is pressed against the side wall portion 23 of the door panel 20 with a large force and pushed in the width direction. Since it can be expanded, the adhesion of the easily deformable portion 62 to the side wall portion 23 of the door panel 20 can be improved.

  Further, in the first embodiment, the flat surface at the tip of the easily deformable portion 62 formed in a rectangular cross section (trapezoidal shape) is stably elastically contacted with the side wall portion 23 of the door panel 20 in a surface contact state. The effect of improving the adhesion of the easily deformable portion 62 with respect to 23 is great.

  In addition, the base 40 of the first molded body 32 constituting the sealing material is fitted into the retainer 24 provided on the outer panel 22 of the door panel 20 of the sash door 11, whereby the first molded body 32 is placed on the sash door 11. It can be easily installed.

In Example 1, both the first and second molded bodies 32 and 33 and the first and second bonded bodies 34 and 35 that join the first and second molded bodies 32 and 33 are used. Thus, an annular sealing material assembly 30 is formed.
The first seal portion 50 and the second seal portion 55 are easily formed on the portion where water easily enters (the upper edge portion 14 and the front inclined portion 15 of the door sash portion 13 of the front sash door 11). By arranging the first molded body 32 formed with the third seal portion 60 having the deformable portion 62 on the distal end side, it is possible to efficiently ensure the sealing performance.
Further, the second seal portion is formed in a portion where water is difficult to enter (a portion extending between the rear upper vertical edge portion 17, the rear lower vertical edge portion 18, the lower edge portion 19, and the front vertical edge portion 16) of the sash door 11. The second molded body 33 in which the 55 and the third seal portion 60 are not formed can be arranged and kept in an appropriate range without excessively increasing the force required for closing the door. As a result, the effect of improving the sealing performance of the sash door 11 and making the force required for closing the door appropriate is great. The second molded body 33 is also provided with a lip (not shown) for preventing diving water.

In the first embodiment, the case where the sealing material assembly 30 is employed in the front sash door 11 as the opening / closing door is illustrated. However, as shown in FIG. 1, the sealing material is applied to the rear sash door 111. An assembly 130 can also be employed.
In this case, the sealing material assembly 130 includes a first molded body 132 at a portion disposed from the upper edge portion 114 of the rear side sash door 111 to the rear inclined portion 115, and a front upper vertical edge portion of the sash door 111. 117, a front lower vertical edge 118 of a main body portion of the sash door 111 continuous below the front upper vertical edge 117, a lower edge 119 and a rear vertical edge 116. The second molded body 133 is joined by a first joined body 134 and a second joined body 135 formed by injection molding to form a sealing material assembly 130 formed in an annular shape.
That is, in the sash door 111 on the rear side, water easily enters at the upper edge portion 114 and the rear inclined portion 115 of the door sash portion 131. A first molded body 132 in which a first seal portion, a second seal portion, and a third seal portion having an easily deformable portion on the distal end side are formed in the portion where water is likely to enter in the same manner as in the first embodiment. By arranging, sealing performance can be secured efficiently.
Further, the second molded body 133 in which the second seal portion and the third seal portion are not formed can be arranged in a portion where water does not easily enter, and the force required for closing the door can be maintained in an appropriate range without being excessive. . As a result, the effect of improving the sealing performance of the rear sash door 111 and making the force required for closing the door appropriate is great.

A second embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 5 and 6, the opening / closing door sealing material according to the second embodiment is exemplified for a panel door 221 as an opening / closing door.
Further, the opening edge portion 202 corresponding to the panel door 221 of the vehicle body panel 201 is provided with a peripheral wall portion 203 and a side wall portion 204 in the same step shape as in the first embodiment. The panel door 221 is attached to one side (front side) of the opening edge 202 of the vehicle body panel 201 so as to be opened and closed by a hinge mechanism.
As is well known, since there is no retainer in the window frame part of the panel door 221, a plurality of mounting holes 225 are formed at predetermined intervals in the longitudinal direction in the peripheral wall part 224 of the door panel 220 constituting the window frame part. ing.

On the other hand, the sealing material 231 is formed from the base portion 240 to which the clip 270 to be inserted and fixed into the mounting hole 225 of the door panel 220 is attached, and from the inboard portion 241 of the base portion 240 to the opening edge 202 of the vehicle body panel 1 in the attached state. A first seal portion 250 formed integrally with the base portion 240 so as to protrude toward the side wall portion 204, and protrudes from the vehicle outer side portion 243 of the base portion 240 toward the peripheral wall portion 203 of the opening edge portion 202 of the vehicle body panel 201. A second seal portion 255 and a third seal portion 260 projecting from the vicinity of the root portion of the second seal portion 255 toward the side wall portion (side wall surface) 223 of the door panel 220 are provided.
In the second embodiment, the side wall portion (side wall surface) 223 of the door panel 220 has an upper side wall portion 223a and a lower side wall portion 223b and is formed in a stepped shape.
A seal lip 244 that elastically contacts the lower wall portion 223b of the door panel 220 is formed on the vehicle outer portion 243 of the base portion 240. Even if it intrudes, it prevents further intrusion into the car interior.

Moreover, the 1st seal part 250 has the hollow part 251 in the inside like the 1st seal part 50 of the sealing material described in Example 1, and is formed in the cross-sectional hollow shape.
Further, among the peripheral wall portions constituting the hollow portion 251 of the first seal portion 250, the thickness of the vehicle inner peripheral wall portion 252 is formed to be thicker than the wall thickness of the vehicle outer peripheral wall portion 254, thereby increasing the rigidity.
Accordingly, when the panel door 221 is closed, the vehicle inner peripheral wall portion 252 of the first seal portion 250 is elastically deformed and kept in close contact with the side wall portion 204 of the opening edge portion 202 of the vehicle body panel 201 while being pressed. At the same time, the outer peripheral wall portion 254 is displaced in the direction toward the second seal portion 255 by a sufficient amount to press the second seal portion 255 in the vehicle outer direction.
The second seal portion 255 also has a bent portion 257 that protrudes toward the vehicle inner side in the center in the width direction in the attached state in the same manner as the second seal portion 55 of the first molded body 32 described in the first embodiment. Thus, it is formed in an L-shaped cross section.

Further, in the third seal portion 260, similarly to the third seal portion 60 of the first molded body 32 described in the first embodiment, the tip side portion becomes an easily deformable portion 262 integrally formed of high foam sponge rubber. ing.
The easily deformable portion 262 is formed in a rectangular cross section (trapezoidal shape), and the front end surface that elastically contacts the upper wall portion 223a of the side wall portion 223 of the door panel 220 forms a flat surface.
Further, the density of the highly foamed sponge rubber (for example, EPDM sponge rubber) forming the easily deformable portion 262 is 0.10 to 0.40 (more preferably, 0.15 to. 35) g / cm ³ , and the density of the low foamed sponge rubber portion (for example, EPDM sponge rubber) other than the easily deformable portion 262 of the sealing material 231 is 0.40 to 0.70 (more preferably, 0.00. 45-0.65) g / cm ³ . The sealing material 231 is integrally formed by coextrusion molding.

The opening / closing door sealing material according to the second embodiment is configured as described above.
Therefore, in the second embodiment, the clip 270 of the base 240 of the sealant 231 is inserted into and engaged with the mounting hole 225 of the door panel 220 of the panel door 221, so that the sealant 231 can be easily attached to the panel door 221. can do.
Since other configurations are substantially the same as those of the first embodiment, the same effects as those of the first embodiment can be obtained.

  In Example 2, as in Example 1, the first molded body and the second molded body, which are extrusion-molded products, are joined by both the first and second joined bodies formed by injection molding. It is also possible to provide an annular seal material assembly. In this case, the first molded body is formed by the sealing material 231.

  In addition, this invention is not limited to the said Example 1 and 2, In the range which does not deviate from the summary of this invention, it can also be implemented with a various form.

1 Body panel 2 Open edge 11 Sash door (open / close door)
20 Door panel 24 Retainer 30 Sealing material assembly 32 First molded body (sealing material)
33 second molded body 34 first joined body 35 second joined body 40 base 50 first seal portion 55 second seal portion 60 third seal portion 62 easy deformable portion 201 body panel 202 opening edge portion 221 panel door (open / close door)
231 Seal material 240 Base 250 First seal portion 255 Second seal portion 260 Third seal portion 262 Easy deformable portion

Claims (9)

In order to seal between the door opening edge of the vehicle body panel and the opening / closing door attached to the opening edge so as to be openable / closable, a long opening / closing door sealing material attached to the peripheral edge of the door panel of the opening / closing door is used. There,
The seal material is attached to the door panel, and protrudes from an inboard portion of the base portion toward the opening edge of the vehicle body panel in an attached state, and is capable of coming into contact with the opening edge portion of the vehicle body panel. A first seal portion formed integrally, a second seal portion projecting from an outer portion of the base portion toward the opening edge portion of the vehicle body panel and capable of contacting the opening edge portion of the vehicle body panel; A third seal portion projecting from the two seal portions toward the side wall surface of the door panel and contacting the side wall surface of the door panel;
The tip side portion of the third seal portion is an easily deformable portion integrally formed of high foam sponge rubber,
When the opening / closing door is closed, the second seal portion is pressed against the body panel and bent, whereby the third seal portion is pressed toward the side wall surface of the door panel, so that the tip of the easily deformable portion The sealing material for an open / close door, wherein the sealing material is pressed against the side wall surface of the door panel with a large force applied with the pressing force of the second seal portion and is pushed and spread in the width direction. The opening / closing door sealing material according to claim 1,
When the first seal portion elastically deforms by elastic contact with the vehicle body panel, the first seal portion is displaced toward the bent second seal portion and presses the third seal portion toward the side wall surface of the door panel via the second seal portion. Thus, the opening / closing door sealing material, wherein the front end of the easily deformable portion is pressed against the side wall surface of the door panel. The sealing material for opening and closing doors according to claim 1 or 2,
The density of the highly foamed sponge rubber forming the easily deformable portion is 0.15 to 0.35 g / cm ³ , and the density of the portion other than the easily deformable portion of the sealing material is 0.45 to 0.65 g / cm 3. ^{3. The} opening / closing door sealing material, wherein the sealing material is integrally formed by coextrusion molding. It is a sealing material for opening and closing doors as described in any one of Claims 1-3,
An opening / closing door sealing material, wherein the first sealing portion is formed in a hollow cross-sectional shape. It is a sealing material for opening and closing doors as described in any one of Claims 1-4,
For the opening / closing door, wherein the second seal part is formed in an L-shaped cross section in which the central part in the height direction protrudes toward the inside of the vehicle in the mounted state, and the protruding bent part can be bent. Seal material. It is a sealing material for opening and closing doors as described in any one of Claims 1-5,
The easily deformable portion is formed in a rectangular shape in cross section, and a front end surface that elastically contacts the side wall surface of the door panel forms a flat surface. It is a sealing material for opening and closing doors as described in any one of Claims 1-6,
An opening / closing door sealing material, wherein the opening / closing door is a sash door, and a base portion of the sealing material can be fitted into a retainer provided on a door panel of the sash door. It is a sealing material for opening and closing doors as described in any one of Claims 1-6,
The opening / closing door is a panel door, and a sealing material for the opening / closing door, wherein a clip that can be engaged by being inserted into a mounting hole of the door panel is attached to a base portion of the sealing material. A sealing material assembly using the opening / closing door sealing material according to any one of claims 1 to 8,
The sealing material assembly includes a first molded body at a portion disposed from an upper edge portion of the opening / closing door to a front side or a rear inclined portion, and a lower edge portion and a front side from the rear side or front vertical edge portion of the opening / closing door. Alternatively, the second molded body of the portion disposed over the rear vertical edge is joined by a joined body formed by injection molding,
The first molded body and the second molded body are formed by extrusion,
The first molded body is formed with a first seal portion, a second seal portion, and a third seal portion having an easily deformable portion at the tip, while the second molded body has a first seal portion. A sealing material assembly using a sealing material for an opening / closing door, wherein the sealing material is formed, but the second sealing portion and the second sealing portion are not formed.

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