JP2020050226A - Door weather strip - Google Patents

Abstract

To provide a door weather strip that is prevented from positionally deviating at a corner part, and excels in work efficiency when assembled.MEANS FOR SOLVING THE PROBLEM: There is provided a door weather strip configured in such a manner that a first weather strip (a first WS) 8 assembled to a window sash of a door upper edge part 31 and a second weather strip (a second WS) 9 assembled to a flange of a door vertical side part 32 are separately fabricated and assembled to door peripheral edges. In the door weather strip, a molding end cap 34 is assembled to an end of the window sash, The second WS 9 has: a fixed part 94 which is fixed to the molding end cap 34; and engagement parts 92, 93 in portions closer to an upper edge than the fixed part 94. The second WS9 is fixed to the molding end cap 34 by a clip 10 in the fixed part 94. The engagement parts 92, 93 of the second WS 9 are engaged with and fixed to a first weather strip claw part 84 formed at an end of the first WS8 and a molding end cap claw part 35 formed on the molding end cap 34.SELECTED DRAWING: Figure 10

Description

TECHNICAL FIELD The present invention relates to a door weather strip to be attached to a sash on an upper side of an automobile door and a flange on a vertical side.

  As shown in FIG. 11, a seal between the rear door 300 of the automobile 100 and the periphery of the vehicle body opening is provided by a door weather strip 500 mounted on the outer periphery of a door frame or the like and an opening trim mounted on a flange at the periphery of the vehicle body opening. This is done by the weather strip 510. The seal between the door glass 400 and the rear door 300 is made by a glass run 520 mounted on a channel on the inner periphery of the door frame. The same member as described above is used for the seal between the front door 200 and the periphery of the opening of the vehicle body of the front door 200.

Further, a first door weather strip 600 for sealing between the upper part of the vehicle body opening and the door upper side part 310 is attached to the door upper side part 310 of the rear door 300, and is higher than the belt line of the front door vertical side part 320. When the rear door 300 is closed, the front vertical side portion 320 of the front door 200 and the front vertical side portion 320 of the front door 200 are in contact with the inside of the vertical side portion 210 on the rear side of the front door 200. A second door weatherstrip 700 that seals between 210 is assembled. The first door weatherstrip 600 and the second door weatherstrip 700 are mounted to suppress noise from outside the vehicle from entering the inside of the vehicle and improve quietness inside the vehicle. In FIG. 11, the front end of the first door weather strip 600 and the upper end of the second door weather strip 700, that is, the upper front corner of the rear door 300 are not connected.

In the door weather strip 500, the first door weather strip 600, and the second door weather strip 700, there is a problem that a position shift is likely to occur at a portion attached to a corner of a door peripheral edge. Therefore, in Patent Document 1, as for the door weather strip, as shown in FIG. 12, a molded welt portion 820 is fitted to a horizontal flange 810 formed outward on the upper edge of the door panel 800, and a vertical end surface contact portion 830 is formed. Is brought into contact with the vertical sash portion 840 and is fixed by the clip 900. The corner portion of the weather strip, the insert horizontal portion 860 buried in the molded welt portion 820, and the corner end of the welt portion 820 The insert vertical portion 870 buried over the vertical end surface contact portion 830 is integrally connected and fixed to the vertical sash portion 840 with the clip 900, thereby increasing the rigidity of the molded welt portion 820.

JP-A-9-123762

Regarding the first door weather strip 600 and the second door weather strip 700, the second door is improved in order to further improve the NV (noise and vibration) performance while improving the positional deviation at a portion assembled at the corner of the door periphery. Extending the weatherstrip 700 to the lower part of the door vertical part 320, and extending the second door weatherstrip 700 of the front door vertical part 320 extending to the lower part and the first door weatherstrip 600 on the door upper part 310 side. There is a need to integrate the front door upper corner portion of the rear door 300.

However, the front end of the first door weather strip 600 and the upper end of the second door weather strip 700 are simply overlapped, or the upper end of the second door weather strip 700 on the first door weather strip 600 side has a double structure. In the structure that sandwiches the front end portion of the first door weather strip 600, there is a problem that a force is applied to the overlapped portion, for example, if the touch portion is touched by hand and a tensile stress is generated in the overlapped portion, the overlapped portion is peeled off.

In addition, the method of integrally molding the second door weather strip 700 and the first door weather strip 600 extended to the lower portion has a problem that the handling becomes extremely poor at the time of assembling the vehicle. It should be noted that the problem of misalignment still remains in the part assembled to the corner part only by integral molding.

On the other hand, in the mounting structure of Patent Document 1 described above, particularly when the material of the door is an aluminum alloy, workability in forming a clip mounting hole in a flange on the front vertical side of the front door is poor, and fixing with a clip is difficult. Even when applied, there is a problem that it is difficult to improve the force for fixing the door weather strip.

This is because aluminum alloy has lower elongation, n-value, γ-value and Young's modulus than steel, so even if it can be formed with conventional steel plates, it can crack, wrinkle and freeze the shape (spring back). Such a problem may occur, and it is difficult to form the same as a steel plate.

In order to solve the above problem, the present invention of claim 1 separates a first weather strip attached to a sash on an upper side of a door from a second weather strip attached to a flange on a vertical side of the door. A door weather strip which is manufactured and assembled to a door periphery to be integrated, wherein a molding end cap is attached to an end of the sash, and a second weather strip is provided with a fixing portion fixed to the molding end cap. The second weatherstrip has an engaging portion at a portion closer to the upper end than the fixing portion, the second weatherstrip is fixed to the molding end cap by a clip at the fixing portion, and the engaging portion of the second weatherstrip is formed by molding. It engages with a molding end cap claw formed on the end cap or / and a first weatherstrip claw formed on an end of the first weatherstrip, and is fixed. A door weather strip, characterized in that it is.

According to the first aspect of the present invention, the first weather strip attached to the sash on the upper side of the door and the second weather strip attached to the flange on the longitudinal side of the door are separately manufactured. A fixing portion fixed to the molding end cap, and a portion closer to the upper end than the fixing portion has an engagement portion, and the second weather strip is fixed to the molding end cap with a clip at the fixing portion, The engaging portion of the second weather strip is engaged with and fixed to the molding end cap claw formed on the molding end cap and / or the first weather strip claw formed on the end of the first weather strip. Since the mounting hole is formed and fixed to the molding end cap which is easier to process than the flange, the fixing between the door and the second door weather strip It is possible to improve the.

  Further, since the second weather strip is engaged with the first weather strip on the upper end side from the position where the second weather strip is clipped to the molding end cap, a fixing force between the first door weather strip and the second weather strip is improved. be able to. Therefore, the fixing force between the door, the first weatherstrip and the second weatherstrip can be improved, and the problem of misalignment at the part assembled to the corner of the door can be solved.

  Further, a first weather strip to be mounted on the sash on the upper side of the door and a second weather strip to be mounted on the flange on the vertical side of the door are separately manufactured, and the two are integrated by engaging them as described above. Therefore, even when the second weather strip extended to the lower part of the vertical side portion of the door is used, the handling in assembling work to the vehicle is improved.

According to a second aspect of the present invention, the first weather strip has a connection portion that engages with the main body portion and the second weather strip, the main body portion has a lip portion and a base portion, and the connection portion has a main body portion. Is a first weather strip having a lower hardness than a base portion of the first weather strip.

According to the second aspect of the present invention, the first weather strip has a connection portion that engages with the main body portion and the second weather strip, the main body portion has a lip portion and a base portion, and the connection portion has an overall shape. In addition, the hardness is lower than that of the base of the main body, that is, the main body is formed of a soft material. As a result, since the work can be performed while the connecting portion is slightly extended, the first weather strip claw portion is fixed by engaging the first weather strip claw portion with the engaging portion of the second weather strip fixed to the molding end cap. The workability when adjusting the position, such as when the weather strip is fixed to the sash on the upper side of the door with a clip, is improved. In addition, the base portion of the main body has a higher hardness than the connection portion, so that it is difficult to expand, and hardly comes off when assembled to a sash.

A third aspect of the present invention is a door weatherstrip having a resin insert at a connection portion of the first weatherstrip. According to the third aspect of the present invention, since the connection portion of the first weather strip has a resin insert, the engagement portion of the second weather strip is engaged with and fixed to the first weather strip claw portion. In addition, it is possible to secure the hardness of the connection portion while maintaining the workability when the first weather strip is fixed to the sash on the upper side of the door with the clip. As a result, even when a force is applied to the connecting portion, the deformation of the connecting portion can be suppressed, and the positional deviation at the corner portion can be prevented.

According to a fourth aspect of the present invention, the first weather strip is a door weather strip which is fixed to the sash on the upper side of the door with a clip at the connection portion. According to the fourth aspect of the present invention, since the first weather strip is fixed to the sash on the upper side of the door with the clip at the connection portion, the first weather strip and the door can be reliably and simply fixed. it can.

  According to a fifth aspect of the present invention, the door weather strip is made of an aluminum alloy. Here, the aluminum alloy as the material of the door is an alloy in which aluminum (Al) contains silicon (Si), copper (Cu), magnesium (Mg), etc. by about several percent, and is a typical aluminum alloy. Examples include 2000-based (Al-Cu-based), 5000-based (Al-Mg-based), and 6000-based (Al-Mg-Si-based).

According to the fifth aspect of the present invention, since the material of the door is an aluminum alloy, the flange at the longitudinal side of the door is not directly processed, and the second weather strip is more easily processed than the flange. The first weather strip is fixed to the aluminum alloy sash on the upper side of the door with the clip, and the door weather strip and the door are securely fixed. be able to. Therefore, even if the material of the door is an aluminum alloy, it is possible to prevent the positional shift at the corner.

The second weather strip is fixed to the molding end cap by a clip at the fixing portion, and the engagement portion of the second weather strip is formed by a molding end cap claw formed on the molding end cap or / and the first weather strip. Is fixed by engaging with the first weatherstrip claw formed at the end of the door, so that the fixing force between the door and the second door weatherstrip can be improved.

The second weatherstrip is engaged with the first weatherstrip at an upper end side from the position where the second weatherstrip is clipped to the molding end cap, thereby improving a fixing force between the door, the first door weatherstrip, and the second weatherstrip. Therefore, the problem of misalignment in a portion assembled to the corner of the door can be solved. Further, the first weather strip and the second weather strip can be easily integrated.

The first weather strip has a connection portion that engages with the main body portion and the second weather strip, and since the connection portion has a lower hardness than the main body portion, work by slightly extending the connection portion. When the engaging portion of the second weather strip fixed to the molding end cap is engaged with and fixed to the first weather strip claw portion, or the first weather strip is fixed to the sash on the upper side of the door with a clip. The workability in adjusting the position in such a case is improved.
Furthermore, since the connection portion has a resin insert, the workability described on the left can be maintained, the hardness of the connection portion can be secured, and even when a force is applied to the connection portion, the deformation of the connection portion is prevented. Thus, the position of the second weather strip can be prevented.

Since the first weatherstrip is fixed to the sash on the upper side of the door with the clip at the connection portion, the door weatherstrip and the door can be reliably and easily fixed.

FIG. 2 is a view of the rear door of the vehicle used in the embodiment of the present invention, as viewed from the inside of the vehicle. It is a side view of the 1st weather strip used for the embodiment of the present invention. It is the principal part enlarged view of the 1st weather strip used for embodiment of this invention, and is the perspective view seen from the vehicle inside. It is the principal part enlarged view of the 1st weather strip used for embodiment of this invention, and is the perspective view seen from the vehicle outer side. It is a side view of the 2nd weather strip used for the embodiment of the present invention, (a) is the whole view, (b) is an enlarged drawing of C section of (a). It is AA sectional drawing of the 2nd weather strip used for embodiment of this invention. It is BB sectional drawing of the 2nd weather strip used for embodiment of this invention. It is a side view when the 1st weatherstrip and the 2nd weatherstrip used for the embodiment of the present invention are assembled to the door. FIG. 9 is a cross-sectional view taken along the line XX in FIG. 8 and is a cross-sectional view corresponding to the same position as in FIG. 6. FIG. 9 is a cross-sectional view taken along the line Y-Y in FIG. 8 and corresponding to the same position as in FIG. 7. It is the figure seen from the car inside when the rear door of the car was opened. This is a conventional method for fixing a corner portion of a weather strip (Patent Document 1).

An embodiment of the present invention will be described with reference to FIGS. The material of the rear door 3 is an aluminum alloy. Although FIGS. 1 to 10 show the rear door 3 on the right side of the vehicle, the present embodiment can be applied to the rear door on the left side. Further, the present embodiment is a hinge type door, but can be applied to a slide type door.

As shown in FIG. 1, the seal between the rear door 3 of the automobile and the periphery of the vehicle body opening is mounted on a door weather strip 5 mounted on the outer periphery of a door frame or the like and / or on a flange on the peripheral edge of the vehicle body opening. This is performed by an opening trim weather strip (not shown). The seal between the door glass 4 and the rear door 3 is made by a glass run 7 attached to a channel on the inner periphery of the door frame.

A first weather strip 8 for sealing between the door upper side 31 and the upper part of the vehicle body opening when the rear door 3 is closed is attached to the door upper side 31 side of the rear door 3. The front side 32 of the rear door 3 and the front vertical side 32 of the front door of the rear door 3 contact the front vertical side 32 of the rear door 3 and the inside of the rear vertical side of the front door (not shown). A second weatherstrip 9 that seals the airbag is assembled. The second weather strip 9 is formed and assembled over the entire area of the front vertical side portion 32 of the front side of the rear door 3.

First, the first weather strip 8 used in the embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 2, the first weather strip 8 includes a connecting portion 81 and a main body 82. The shape conforms to the shape of the door upper side 31 of the rear door 3, and is assembled inside the door upper side 31 of the rear door 3 as shown in FIG. As shown in FIGS. 3 and 4, the main body 82 has a base portion 87 and a lip 83. The sealing is performed between the upper part of the vehicle body opening and the first weather strip 8.

The base 87 of the main body 82 is made of solid rubber of EPDM (ethylene propylene rubber), and the connecting part 81 is made of sponge rubber of EPDM which is softer than the main body 82. The connecting portion 81 and the lip 83 of the main body 82 are made of sponge rubber of EPDM.

As shown in FIGS. 2 and 3, the connecting portion 81 is formed continuously from the main body portion 82, and has a shape in which a front end protrudes downward when viewed from the inside of the vehicle, The cross section is an inverted L-shape. A first weatherstrip claw 84 for fixing a first engagement arm 92 of a second weatherstrip 9 described later is formed at the front end.

The connecting portion 81 has a mounting hole 85 for fixing the first weather strip 8 with the clip 10 to the mounting hole 33 of the connecting portion mounting portion 30 formed by projecting from the sash of the door upper side portion 31 of the rear door 3. Is formed. The base 87 of the main body 82 is attached to the sash on the upper side 31 of the rear door 3.

Further, as shown in FIG. 4, a resin insert 86 is embedded in the connection portion 81 including the mounting hole 85 in an inverted L-shape similar to the inverted L-shaped cross section of the connection portion 81. As the resin insert 86, nylon (6,6-nylon) was used. Since nylon has a high melting point, it has the advantage of not deforming during molding. The insert 86 is not limited to nylon as long as it does not deform during molding. Further, the insert 86 may be embedded inside the first weather strip 8 or may be partially exposed outside the vehicle from the first weather strip 8. The insert 86 made of resin may be omitted depending on the shape and thickness of the connecting portion 81, the material used, and the like.

Next, the second weather strip 9 used in the embodiment of the present invention will be described with reference to FIGS. 1 and 5 to 7. The second weather strip 9 has a shape that follows the shape of the door vertical side portion 32 on the front side of the rear door 3 and is attached to the entire area of the door vertical side portion 32. The second weatherstrip 9 is formed with a lip 91 that abuts on the inside of the vehicle at the rear vertical side of the front door (not shown). The second weatherstrip 9 is integrated with the first weatherstrip 8 in a region C of FIG. The second weather strip 9 was entirely made of solid rubber of EPDM (ethylene propylene rubber).

As shown in FIG. 6 (a cross-sectional view taken along line AA of the second weather strip 9 in FIG. 5B), the second weather strip 9 is integrated with the first weather strip 8 below the upper end of the second weather strip 9. A fixing portion 94 fixed to the molding end cap 34 is formed in the portion to be fixed, and a mounting hole 95 is formed in the fixing portion 94.

As shown in FIG. 7 (a cross-sectional view taken along the line BB of the second weather strip 9 in FIG. 5B), the upper end of the second weather strip 9 has a first A second engagement arm 93 that engages with the first engagement arm 92 and the molding end cap claw portion 35 of the molding end cap 34 is formed.

In addition, as shown in FIG. 5B, the other part of the second weather strip 9 other than being integrated with the first weather strip 8 is assembled with the second weather strip 9 on the flange of the door vertical side part 32. For this purpose, a contact lip 98 is formed at the front end of each of the inner side wall 96 and the outer side wall 97 and the inner side wall 96 and the outer side wall 97.

Next, a case where the first weather strip 8 and the second weather strip 9 are assembled to the rear door 3 will be described with reference to FIGS. First, the molding end cap 34 is attached to the front end of the molding formed on the door upper side 31 of the rear door 3. As shown in FIG. 10, the molding end cap 34 is formed with a molding end cap claw portion 35 which engages with the second engagement arm 93 of the second weather strip 9 to fix the second engagement arm 93. I have. Further, as shown in FIG. 9, a fixing arm 36 for fixing the fixing portion 94 of the second weather strip 9 with the clip 10 is formed. An attachment hole 37 through which the clip 10 passes is formed in the fixed arm 36.

The molding end cap 34 is made of a resin, and in this embodiment, a hard resin PP (polypropylene) is used. Other resins may be used as long as they are hard resins.

Next, the mounting hole 95 formed in the fixing portion 94 of the second weather strip 9 is aligned with the mounting hole 37 of the fixing arm 36 of the molding end cap 34, and the clip 10 is inserted from the second weather strip 9 side. Then, the molding end cap 34 and the second weather strip 9 are fixed.

Further, the second engagement arm 93 formed at the upper end of the second weather strip 9 is engaged with the molding end cap claw 35 of the molding end cap 34. After that, the inner side wall 96 and the outer side wall 97 and the contact lip 98 formed on the other part of the second weather strip 9 are inserted into the flange of the door vertical side portion 32, and the second weather strip 9 is attached to the rear door 3. Is completed.

Next, the base portion 87 of the main body portion 82 of the first weather strip 8 is attached to the sash of the door upper side portion 31 of the rear door 3. Then, as shown in FIG. 10, the connecting portion 81 of the first weather strip 8 is put on the second weather strip 9 and the molding end cap 34. At this time, the first engagement arm 92 formed on the upper end portion of the second weather strip 9 and the first weather strip claw portion 84 formed on the connection portion 81 of the first weather strip 8 are engaged.

Then, the position of the mounting hole 85 of the first weather strip 8 and the mounting hole 33 of the connecting portion mounting portion 30 of the first weather strip 8 formed so as to protrude from the sash are aligned, and the rear door 3 is fixed by the clip 10. Attachment of the first weather strip 8 to the first weather strip 8 is completed. Thereafter, the space between the rear door 3 and the periphery of the opening of the vehicle body is sealed, and the door weather strip 5 mounted on the outer periphery of the door frame is mounted.

  In the above-described embodiment, the second weather strip 9 has both the molding end cap claw 35 formed on the molding end cap 34 and the first weather strip claw 84 formed on the connecting portion 81 of the first weather strip 8. , But may be engaged with either one. Since the second weather strip 9 is fixed to the fixing arm 36 of the molding end cap 34 with the clip 10 at the lower part, the second weather strip 9 is fixed at two upper and lower locations by engaging at the upper end part, and the position is shifted. Is prevented.

The implementation of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the purpose of the present invention.

For example, the first weather strip 8 in the present embodiment is formed separately from the door weather strip 5 attached to the outer periphery of the door frame or the like, but may be formed by integral molding.

  Although the second weather strip 9 in the present embodiment entirely uses solid rubber of EPDM (ethylene propylene rubber), for example, a portion below the belt line may be made of sponge rubber of EPDM.

  For example, the first weather strip 8 and the second weather strip 9 are formed of EPDM (ethylene propylene rubber), but may be formed of an olefin-based thermoplastic elastomer (TPO).

3 Rear Door 5 Weather Strip 31 Door Upper Side 32 Door Vertical Side 33 Mounting Hole 34 Mall End Cap 35 Mall End Cap Claw 36 Fixed Arm 37 Mounting Hole 8 First Weather Strip 81 Connection 82 Main Body 83 Lip 84 First Weather Strip claw part 85 Mounting hole 86 Insert 87 Base part 9 Second weather strip 91 Lip 92 First engaging arm 93 Second engaging arm 94 Fixed part 95 Mounting hole 96 Inner side wall 97 Outer side wall 98 Contact lip

Claims (5)

A first weather strip attached to the sash on the upper side of the door;
A door weather strip which is separately manufactured from a second weather strip to be attached to a flange on a door vertical side portion and is attached to a door periphery,
A mall end cap is attached to an end of the sash,
A fixing portion fixed to the molding end cap,
A portion closer to the upper end than the fixed portion has an engaging portion,
The second weather strip is fixed to the molding end cap with a clip at the fixing portion,
The engaging portion of the second weather strip is engaged with a molding end cap claw formed on the molding end cap and / or a first weather strip claw formed on an end of the first weather strip. Door weather strip characterized by being fixed. The first weather strip has a connection portion that engages with the main body portion and the second weather strip, the main body portion has a lip portion and a base portion, and the connection portion includes the base portion of the main body portion. The door weather strip according to claim 1, wherein the hardness is lower than that of the portion. The door weather strip according to claim 2, wherein the connection portion of the first weather strip has a resin insert. 4. The door weather strip according to claim 2, wherein the first weather strip is fixed to the sash on the upper side of the door with a clip at the connection portion. 5.   The door weather strip according to any one of claims 1 to 4, wherein the material of the door is an aluminum alloy.

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