JP2005205964A - Vehicle door weather strip and vehicle side surface structure having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle door weather strip capable of transmitting a vehicle collision force at the time of a front side collision to a pillar and a vehicle side surface structure having the same. <P>SOLUTION: The rear end of a belt line beam 5 arranged in a door body 1 is extended to the rear surface of a step-shaped door inner panel 2 opposing a center pillar 6. A door weather strip 7 installed at the door inner panel 2 comprises a seal part 71 installed along the circumferential edge of the door inner panel 2 and a front end and a rear end formed continuously at both ends of the seal part 71. The rear end 72 of the door weather strip 7 comprises a first forming part 73 formed of resin along the step of the door inner panel 2, and a second forming part 74 integrally formed with the seal part 71 covering an inner part 73b along the step of the door inner panel 2 and installed along the circumferential edge of the door inner panel 2. A collision force applied from a front side is efficiently transmitted to the center pillar 6 through the rear end 72 of the door weather strip 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle door weather strip, and more particularly, to a vehicle door weather strip that can efficiently transmit an impact force at the time of a frontal collision to the vehicle rear side, and a side structure of a vehicle including the vehicle door weather strip.

FIG. 5 is a side view of a vehicle door, which is the background art of the present invention, and FIG. 6 is a partial cross-sectional view taken along line XX of FIG. FIG. 7 is a cross-sectional view taken along line YY of FIG. In the figure, Fr indicates the forward direction of the vehicle, UPR indicates the vertically upward direction, and INN indicates the indoor direction of the vehicle.
As shown in FIGS. 5 to 7, the vehicle door 20 is formed by joining the peripheral edges of a door outer panel 21 and a door inner panel 22. A belt line beam 23 is disposed in a space defined by the door outer panel 21 and the door inner panel 22. The belt line beam 23 is fixed to the front and rear side surfaces of the door inner panel 22 via a bracket 23a. That is, the bracket 23 a on the rear end side of the beltline beam 23 is joined to the rear surface of the rear side portion of the door inner panel 22. Since the beltline beam 23 is arranged, even when the vehicle is hit by the door 20 of the vehicle, the deformation of the door 20 can be suppressed and the door 20 can hardly enter the indoor side.

A door weather strip 24 is attached to the periphery of the door inner panel 22 to seal a gap with the vehicle body.
As shown in FIGS. 6 and 7, the door weather strip 24 is formed by integrating a portion molded by the extrusion molding method and a portion molded by the mold molding method, and includes a hollow seal portion 24a. . The seal portion 24a closes the gap between the door 20 and the vehicle body. Front and rear ends of the door weather strip 24, that is, a door inner panel facing the front pillar portion and the center pillar portion 26 mounted on the door inner panel surface facing the front pillar portion (not shown). As shown in FIG. 6, the rear end portion of the door weather strip 24 attached to the surface is inserted with a plate-shaped mold molding portion 24 b formed corresponding to the shape of a part of the mounting surface, It is integral with the hollow seal portion 24a.
As shown in FIG. 6, a door trim 25 is mounted on the indoor side of the door inner panel 22. Further, another weather strip 27 is mounted on the center pillar portion so as to face the rear end portion of the door weather strip 24.

However, when the vehicle collides with a vehicle ahead or collides with an oncoming vehicle, the impact force due to this collision is transmitted from the door hinge of the front pillar portion to the door 20, and further, the door belt line beam 23 starts from the rear end of the door belt line beam 23. It is transmitted to the center pillar portion 26 via the weather strip 24.
Conventionally, the door belt line beam 23 is effective only at the time of a side collision when protecting an occupant. Moreover, since the space | interval of the door 20 and the center pillar part 26 is also large, the subject that the impact force from the front cannot be efficiently transmitted to the center pillar part 26 occurs.

  SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a vehicle door weather strip and a door structure including the same, which can transmit the impact force of the vehicle at the time of a frontal collision to the pillar portion. To do.

In order to achieve the above object, a door weather strip for a vehicle according to the present invention is continuously formed on a hollow seal portion mounted along a peripheral edge of a door body and on front and rear ends of the seal portion. In a vehicle door weather strip having front and rear end portions, the rear end portion includes a first molded portion formed of resin along a step of the door inner panel, and an inner portion of the first molded portion. And a second molded part that covers the step of the door inner panel and is molded together with the seal part.
With this configuration, the door weather strip can be made harder than before, and bending can be reduced.

Further, the side structure of a vehicle provided with the door weather strip of the present invention is such that a belt line beam extending in the front-rear direction of the vehicle is disposed in the door body, and the door weather strip is mounted on the door body. In the side structure, a rear end portion of the door weather strip is formed of a resin along a step of the door inner panel, and an inner portion of the first molded portion is formed along the step of the door inner panel. And a second molding part molded integrally with a seal part mounted along the periphery of the door body, and the rear end of the belt line beam has a stepped shape facing the pillar part. It extends to the back surface of the door inner panel, and an impact force from the front can be transmitted to the pillar portion via the rear end portion of the door weather strip.
With this configuration, the impact force from the front of the vehicle can be efficiently transmitted to the rear pillar portion. In particular, since the rear end portion of the door weather strip includes the first molded portion formed of resin, the bending does not occur like the conventional door weather strip, and the deformation amount of the vehicle body can be reduced.
Preferably, the pillar portion includes a reinforcement, and the reinforcement is joined to the pillar portion by front and rear flanges. With this configuration, the pillar portion can be reinforced, and the pillar portion can be made difficult to be deformed even when a collision force in the front-rear direction of the vehicle is transmitted.

  The vehicle door weather strip according to the present invention includes a hollow seal portion mounted along the periphery of the door body, and front and rear end portions that are continuously formed on the front and rear ends of the seal portion, respectively. A first molded part molded with resin along the step of the door inner panel and a first molded part that covers the inner part of the first molded part along the step of the door inner panel and is molded together with the seal part. And two molded parts. Thereby, a door weather strip can be made harder than before, and bending can be lessened.

A side surface structure of a vehicle provided with a door weather strip according to the present invention includes a first molding portion in which a rear end portion of a door weather strip attached to a door body is molded with a resin along a step of a door inner panel; The inner part of one molding part is comprised along the level | step difference of the said door inner panel, and is comprised with the 2nd molding part shape | molded integrally with the seal | sticker part with which it is mounted | worn along the periphery of a door main body. And the rear end of the belt line beam extends to the back of the step of the door inner panel facing the pillar part, so that the impact force from the front can be transmitted to the pillar part through the rear end part of the door weather strip. did. Thereby, the impact force from the front of the vehicle can be efficiently transmitted to the rear pillar portion. In particular, since both end portions of the door weather strip include the first molded portion formed of resin, the bending is reduced as in the conventional door weather strip, and the deformation amount of the vehicle body can be reduced.
Furthermore, a reinforcement is provided in the pillar part, and the reinforcement is joined to the pillar part by front and rear flanges. As a result, the pillar portion can be reinforced and the pillar portion can be made difficult to be deformed even when a longitudinal collision force of the vehicle is transmitted.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1A is a sectional view of a vehicle door structure that is the best mode for carrying out the present invention, FIG. 1B is a partial perspective view of a front portion of a beltline beam, and FIG. 1C is a rear portion of the beltline beam. FIG. 2 is a partially enlarged sectional view of FIG. Fig.1 (a) is corresponded in sectional drawing which follows the XX line | wire of FIG. 5 in background art. In the figure, Fr indicates the front of the vehicle, and INN indicates the interior direction in the vehicle width direction.

  The door body 1 of the vehicle is configured by joining the peripheral edges of the door inner panel 2 and the door outer panel 3. The door body 1 is mounted so as to be able to turn to the front pillar portion 4 via a hinge 4a. The front pillar portion 4 is configured by joining a front pillar inner panel 4b and a front pillar outer panel 4c. Reinforcement is necessary in the space defined by the front pillar inner panel 4b and the front pillar outer panel 4c. 4d is provided.

In a space defined by the door inner panel 2 and the door outer panel 3, a belt line beam 5 is disposed so as to extend in the front-rear direction of the vehicle. Here, the rear end of the belt line beam 5 extends to the back surface of the door inner panel 2. That is, the rear end of the beltline beam 5 is extended to the back surface of the step-shaped door inner panel 2 facing the center pillar portion 6.
The door inner panel 2 is curved in the vicinity of the front pillar portion 4 so as to correspond to the shape of the front pillar portion 4, and the door inner panel reinforcement 2a and the front bracket 5a are fixed to the space side. The front bracket 5a fixes the front part of the belt line beam 5 as shown in FIG. Similarly, the door inner panel reinforcement 2a and the rear bracket 5b are fixed to the rear side portion of the door inner panel 2 on the vehicle rear side. The rear bracket 5b fixes the rear part of the beltline beam 5 as shown in FIG.

In the best mode for carrying out the present invention, the rear side portion of the door inner panel 2 is processed so as to have a plurality of steps corresponding to the shape of the opposing center pillar portion 6.
The center pillar portion 6 will be described with reference to FIG. The center pillar portion 6 is formed by joining a center pillar inner panel 6a on the indoor side and a center pillar outer panel 6b on the outdoor side by a front end joining portion 6c and a rear end joining portion 6d. In the center pillar defined by the center pillar inner panel 6a and the center pillar outer panel 6b, a reinforcement 6e is arranged on an extension line to the rear side of the rear end of the belt line beam 5. The front and rear flanges 6f of the reinforcement 6e are joined to the center pillar outer panel 6b, respectively. An outer plate 6g as an outer panel forming a part of the vehicle body is joined to the outdoor side of the center pillar outer panel 6b.

The outer plate 6g is bent so that the first corner 61 corresponding to the joint portion 3b joining the door inner panel 2 and the door outer panel 3 extends from the first corner 61 to the front of the vehicle and tilts forward in the room. A second corner 62 extending from the second corner 62 to the room side, and a third corner 63 formed by bending so as to be joined to the center pillar inner panel 6b.
As described above, the outer plate 6g of the pillar portion 6 facing the rear side portion of the door inner panel 2 is a surface formed between the second corner 62 and the third corner 63, that is, the inner side extending to the interior side. It is processed so as to have one surface 6A and a surface extending from the third corner 63 to the vehicle front side, that is, the first surface 6A and the second surface 6B forming a corner on the indoor side.

  The center pillar inner panel 6 b has a corner 63 a behind the third corner 63. Then, between the corner 63a and the front end joint portion 6c, a surface having the vehicle width direction as a normal direction and a surface having the vehicle front-rear direction as the normal direction are alternately formed to form a fourth corner 64. Through the seventh corner 67 is formed.

  A center pillar-side door weather strip 6h is mounted on the surface of the center pillar portion 6 facing the door body 1 on the vehicle front side. The outer end of the center pillar side door weather strip 6h faces the front flange 6f of the reinforcement 6e with the center pillar inner panel 6b and the outer plate 6g interposed therebetween. The center pillar side door weather strip 6h is not joined to the third corner 63 but is spaced apart from the third corner 63, but is joined to the fourth corner 64 to the seventh corner 67.

Hereinafter, the door inner panel 2 will be described with reference to FIG.
The rear side portion of the door inner panel 2 on the side of the center pillar portion 6 is formed along the shape of the center pillar portion 6 facing the rear side portion.
As shown in FIG. 2, a first corner 21 is formed on the rear side portion of the door inner panel 2 by bending the door trim mounting surface 2 b into a substantially L-shaped section. A door trim 8 is mounted on the door trim mounting surface 2b. Further, the rear side portion of the door inner panel 2 forms a second corner 22 and a third corner 23 from the first corner 21 toward the outdoor side. Here, the rear end of the belt line beam 5 extends to the back side of the third corner 23 which is a corner formed by the first facing surface 2e and the second facing surface 2d of the door inner panel 2. The first facing surface 2e is a surface facing the first surface 6A of the outer plate 6g as the outer panel, and the second facing surface 2d is a surface facing the second surface 6B of the outer plate 6g. . A rear flange 5b is joined to the back surface of the third corner 23, and the rear end of the belt line beam 5 is fixed to the door inner panel 2 by the rear flange 5b. A door weather strip 7 is attached to the rear side portion of the door inner panel 2. That is, the rear end portion of the door weather strip 7 is joined to the door trim mounting surface 2b of the door inner panel 2 and the surfaces 2c, 2d, and 2e forming the first corner 21 to the third corner 23.

  Further, the rear side portion of the door body 1 and the center pillar portion 6 are set so as to face each other through a gap. That is, the first surface between the first facing surface 2e extending rearward from the third corner 23 of the door inner panel 2 and the third corner 63 and the second corner 62 of the center pillar portion 6. The distance D between the door 6 and the door weather strip 7 is mounted to the door inner panel 2, the center pillar side door weather strip 6h can be mounted to the outer plate 6g, and the door body 1 can be opened and closed. The dimensions of

Here, the door weather strip 7 attached to the door inner panel 2 will be described.
FIG. 3 is a perspective view showing a part of the door weather strip 7. 4 is a cross-sectional view taken along line AA in FIG. This figure corresponds to an enlarged cross-sectional view of the cross section of the door weather strip 7 shown in FIG. 2, and is a cross-sectional view of a portion to be mounted on the rear side portion of the door inner panel 2 on the center pillar portion 6 side. FIG. 3 shows a rear end portion 72 of the door weather strip 7 mounted on the door inner panel surface facing the center pillar portion 6, and is mounted on the door inner panel surface facing the front pillar portion 4. The same applies to the front end portion of the door weather strip 7.
The hollow seal portion 71 of the door weather strip 7 is mounted along the peripheral edge of the door body, that is, along the lower end portion and the front and rear side portions of the door inner panel 2. The rear end 71 a of the seal portion 71 is connected to be integrated with the rear end portion 72 of the door weather strip 7. The front end of the seal portion 71 is also connected so as to be integrated with the front end portion (not shown) of the door weather strip 7.

  As shown in FIG. 3, the rear end portion 72 includes a first molding portion 73 that is molded of resin along the step of the door inner panel 2. The first molding portion 73 is formed by integrally molding a resin exposed portion 73a bonded to the step-shaped door inner panel 2 and an inner portion 73b formed continuously with the resin exposed portion 73a. Here, the resin exposed portion 73a is thicker than the inner portion 73b. In the case of mounting on the door inner panel 2 shown in FIG. 2, the resin exposed portion 73a of the first molded portion 73 is along the surfaces 2d and 2e forming the third corner 23 of the door inner panel 2 along the inner portion 73b. Is a shape along the surfaces 2b, 2c, 2d forming the first corner 21 and the second corner 22.

  Further, the rear end portion 72 includes a second molding portion 74 that covers the inner portion 73 b of the first molding portion 73 along the step of the door inner panel 2. At this time, the thickness including the inner portion 73 b of the second molded portion 74 is set to be approximately the same as the thickness of the resin exposed portion 73 a of the first molded portion 73. The second molding portion 74 is integrally molded with the above-described seal portion 71 by, for example, a mold molding method.

  Here, although the 2nd shaping | molding part 74 is shape | molded using the raw material similar to the seal | sticker part 71, it is preferable to use ethylene propylene rubber (EPR) as this raw material. Examples of ethylene propylene rubber include EPM, which is a rubbery copolymer of ethylene and propylene, and EPDM in which an unsaturated group is added to the polymer and side chains, and any of these may be adopted. Further, as the resin of the first molding portion 73, it is preferable to use nylon resin such as 66 nylon. The door weather strip 7 formed of these materials is harder than a conventional sheet metal formed by surrounding a rubber sheet.

  As shown in FIG. 2, the door weather strip 7 is mounted such that the resin exposed portion 73a of the first molding portion 73 is disposed on the rearward extension line in the load acting direction due to the front collision to the belt line beam 5. Furthermore, the reinforcement 6e of the center pillar portion 6 is disposed on the rear extension line.

Hereinafter, a case where another vehicle collides with the vehicle having the door body 1 to which the door weather strip 7 is attached from the front of the vehicle will be described.
As shown in FIG. 1, when an impact force is received from the front of the vehicle, the received impact force F <b> 1 is transmitted to the front pillar portion 4. This impact force F1 is transmitted as an impact force F2 to the front end of the belt line beam 5 through the hinge 4a. The impact force F2 transmitted to the front end of the beltline beam 5 is transmitted to the rear end of the beltline beam 5, and is transmitted to the center pillar portion 6 as the impact force F3. At this time, the door weather strip 7, in particular, the first molding portion 73 of the rear end portion 72 is not bent, and the impact force transmitted to the rear end of the beltline beam 5 is efficiently transmitted to the center pillar portion 6. . That is, the front collision load is transmitted from the belt line beam 5 to the reinforcement 6 e of the center pillar portion 6 through the first molding portion 73 of the door weather strip 7. Therefore, the impact force can be efficiently received from the front of the vehicle by the center pillar portion 6, and the vehicle body can be prevented from being deformed as much as possible.

  The embodiment of the present invention described above is merely an example of the present invention. For example, the embodiment of the present invention can be applied to doors of various vehicles such as hard-top cars, but is not limited thereto, and is within the scope of the invention described in the claims. Various modifications are possible, and these are also included in the scope of the present invention. In the best mode for carrying out the present invention, the structure of the front door and the door weather strip attached to the front door have been mainly described. However, the structure of the rear door and the door weather strip attached to the rear door are also described. The same applies.

(A) is sectional drawing of the vehicle door structure which is the best form for implementing this invention, (b) is a partial perspective view of the front part of a beltline beam, (c) is the part of the rear part of a beltline beam It is a perspective view. It is a partial expanded sectional view of Fig.1 (a). It is the perspective view which showed a part of door weather strip of FIG. It is sectional drawing which follows the AA line of FIG. It is a side view of the door of the vehicle which is background art of the present invention. It is a fragmentary sectional view which follows the XX line of FIG. It is sectional drawing which follows the YY line | wire of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door main body 2 Door inner panel 2a Inner panel reinforcement 2b Door trim mounting surface 2e 1st opposing surface 2d 2nd opposing surface 3 Door outer panel 4 Front pillar part 5 Belt line beam 5b Rear bracket 6 Center pillar part 6A 1st Surface 6B Second surface 6b Center pillar outer panel 6e Reinforcement 6f Flange 6g Outer plate 6h Center pillar side door weather strip 7 Door weather strip 71 Seal portion 72 Rear end portion 73 First molding portion 73a Resin exposed portion 73b Inner portion 74 Second molding part 8 Door trim

Claims (3)

In a vehicle door weather strip comprising a hollow seal portion mounted along the periphery of the door body, and front and rear ends respectively formed continuously at the front and rear ends of the seal portion,
The rear end is
A first molded part molded of resin along the step of the door inner panel;
A door weather strip for a vehicle, comprising: a second molded part that covers the inner part of the first molded part along a step of the door inner panel and is molded together with the seal part. In the side structure of a vehicle in which a belt line beam extending in the front-rear direction of the vehicle is arranged in the door body, and a door weather strip is attached to the door body,
The rear end portion of the door weather strip covers the first molded portion molded with resin along the step of the door inner panel and the inner portion of the first molded portion along the step of the door inner panel, And a second molded part molded integrally with a seal part mounted along the periphery of the door body,
The rear end of the belt line beam extends to the back surface of the door inner panel having a step shape facing the pillar portion, and the pillar portion is impacted from the front via the rear end portion of the door weather strip. A side structure of a vehicle having a door weather strip, characterized in that a force can be transmitted.   The vehicle with a door weather strip according to claim 2, wherein the pillar portion includes a reinforcement, and the reinforcement is joined to the pillar portion by front and rear flanges. Side structure.

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