JP2013032076A - Door structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door structure for an automobile for facilitating work and reducing cost, superior in strength, and capable of abolishing a metal mold molding part in a corner part of a door weatherstrip.SOLUTION: In the corner part X of a door 1 in which a roof side sash 22 and a pillar side sash 23 are butted against each other, fitting recessed parts 22b and 23b formed in both sashes 22 and 23 are respectively partially separated from extension parts 22c and 23c, and are respectively connected by joining mutual end parts by curving toward the door inner peripheral side, the mutual end parts of the extension parts 22c and 23c formed in both sashes 22 and 23 and respectively extending to the corner part X side are joined and connected, and the door weatherstrip 30 integrally extrusively molded in series can be installed up to extending to the pillar side via the corner part X from the door upper edge part side.

Description

  The present invention relates to an automobile door structure. More specifically, the present invention relates to a door structure with a sash to which a door weather strip that elastically contacts the body panel side and seals the inside and outside of the vehicle is attached to the inside of the vehicle.

As shown in FIGS. 9 and 10, in the automobile door structure with a sash, the roof-side sash 2 that forms the upper edge of the door 1 and the pillar-side sash 3 that extends in the vertical direction of the door 1 project at the corner portion X. Are combined.
As shown in FIGS. 11 and 12, frame main body portions 2a and 3a having a hollow cross section are formed on the inner peripheral side of the door 1 inside the both sashes 2 and 3, and the frame main body portion 2a. , 3a, fitting recesses 2b, 3b having a substantially C-shaped cross section are formed on the outer peripheral side of the door 1. Further, extending portions 2c and 3c are formed so as to extend from the fitting concave portions 2b and 3b of both the sashes 2 and 3 toward the vehicle outer side, and a flange-shaped design surface portion 2d is formed on the outer edge of the extending portions 2c and 3c. , 3d are formed.

A door weather strip 10 is attached to the fitting recesses 2b and 3b formed in both the sashes 2 and 3. The door weather strip 10 has a mounting base 10a that is fitted into the fitting recesses 2b and 3b, and a hollow seal portion 10b that is integrally formed with the mounting base 10a and that elastically contacts the body panel 5 when the door 1 is closed to seal the inside and outside of the vehicle. ing.
Moreover, the sub seal | sticker part 11 is attached to the outer peripheral side of the door 1 of the extending parts 2c and 3c from the design surface parts 2d and 3d. The sub seal portion 11 is integrally formed with the mounting base portion 11a and the mounting base portion 11a which are locked to the design surface portions 2d and 3d and which cover the portions of the extending portions 2c and 3c exposed on the outer peripheral side of the door 1. Similar to the hollow seal portion 10b, when closed, it has a seal lip portion 11b having a generally tongue-shaped cross section that elastically contacts the body panel 5.
Furthermore, the glass run 12 is attached to the inner peripheral side of the door 1 of the extending portions 2c and 3c outside the frame main body portions 2a and 3a. The glass run 12 includes an attachment base 12a having a substantially U-shaped cross section, an inward lip portion 12b that protrudes inward from both ends of the attachment base 12 and is in sliding contact with the door glass 6 that moves up and down from the outside and the inside of the vehicle. It has an inner lip portion 12c.

In such an automotive door structure with a sash, usually, welding (welded portion T1) is applied to the portion of the roof-side sash 2 and the pillar-side sash 3 that are abutted at the corner X, and the roof-side sash 2 and the pillar As shown in FIG. 10, the side sash 3 intersects at an acute angle (θ), and the corner portion X has an edge shape.
Therefore, the door weather strip 10 attached to both the sashes 2 and 3 is extruded on the roof side and the pillar side as shown in FIGS. 11 and 12, and is set to have the same cross-sectional shape. Since part X has an edge shape, it is necessary to connect the two extruded door weather strips 10 (10Y, 10Y) with the molded door weather strip 10 (10Z) as shown in FIG. There is.

  On the other hand, what employ | adopted the weather strip of a fixed cross section by employ | adopting the seamless flame | frame in which the circular-arc-shaped curved part was formed in the corner part X is known (patent document 1).

JP 2008-273343 A

However, according to the structure described in Patent Document 1, in addition to the seamless frame (20), separate members such as the upper side design member (21) and the upright side design member (22) are required. Since the side design member (22) is a combination of the vertical column main member (23) and the vertical column sub member (24), the side design member (22) has a large number of parts, and these members must be overlapped with each other with high accuracy. There is a problem that the work becomes complicated, and the cost is high.
In addition, the upper side design member (21) and the upright column main member (23) need to be partially excised, so that the processing becomes complicated.
In addition, the upper side design member (21) and the upright column main member (23) overlap the groove bottom surface portion (21f) of the upright column main member (23) with the upper support surface (23f) of the upper side design member (21). Therefore, there is a problem that the strength is inferior to that of fixing by welding as in the prior art.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automotive door structure that is easy to work with, can be manufactured at low cost, is excellent in strength, and can eliminate the molding part at the corner of the door weather strip. is there.

To achieve the above object, a door structure for an automobile according to claim 1 of the present invention includes a roof-side sash (22) forming an upper edge of the door (1) and a pillar extending in the vertical direction of the door (1). The side sash (23) is abutted at the corner (X), and the door weatherstrip (30) that elastically contacts the body panel (5) side and seals the inside and outside of the vehicle is inside the sash (22, 23). The vehicle door structure is formed with fitting recesses (22b, 23b) to be fitted and extension portions (22c, 23c) extending from the fitting recesses (22b, 23b) toward the outside of the vehicle. And
In the corner portion (X), the fitting recesses (22b, 23b) formed in both the sashes (22, 23) are partially separated from the extending portions (22c, 23c), respectively, and each inside the door (1). Curved toward the peripheral side, the ends of the fitting recesses (22b, 23b) are joined and connected, and the extension is formed on both sashes (22, 23) and extends toward the corner (X). The door weather is formed by integrally extruding the end portions of the portions (22c, 23c) and connecting them at least from the upper edge side of the door (1) through the corner portion (X) to the pillar side. The strip (30) can be attached.

  The invention according to claim 2 is the invention according to claim 1, wherein the fitting recesses (22b, 23b) formed in the both sashes (22, 23) are partially separated from the extending portions (22c, 23c), respectively. When separating, the part (22c ′, 23c ′) of the extended portion (22c, 23c) is separated on the side of the fitting recess (22b, 23b), and after being bent, the fitting recess In addition to (22b, 23b), ends (22c ′, 23c ′) of the extended portions (22c, 23c) are also joined and connected.

In the invention according to claim 3, the roof sash (22) forming the upper edge of the door (1) and the pillar sash (23) extending in the vertical direction of the door (1) are abutted at the corner (X). On the vehicle inner side of both sashes (22, 23), fitting recesses (22b, 23b) are formed in which door weather strips (30) that are elastically contacted to the body panel (5) side and seal the inside and outside of the vehicle are fitted. And an automotive door structure in which extending portions (22c, 23c) extending from the fitting recesses (22b, 23b) toward the vehicle outer side are formed,
In the corner part (X), the fitting recess (23b) formed in one of the sashes (22, 23) is partly separated from the extension part (23c) to provide a door. (1) The fitting recess (22b) formed in the other sash (22) of the two sashes (22, 23) is curved toward the inner peripheral side, and a predetermined distance (L) from the extending portion (22c). The end portion of the fitting recess (23b) that is curved and cut on the one sash (23) is joined to the end portion of the fitting recess (22b) remaining on the other sash (22). In addition, the ends of the extended portions (22c, 23c) formed on the sashes (22, 23) and extending to the corner portion (X) side are joined and connected to each other so that at least the upper edge side of the door (1) Through the corner (X) to the pillar Characterized in that the attachable to the door weather strip is set integrally extrusion (30).

  The invention according to claim 4 is the invention according to claim 3, wherein when the fitting recess (23b) formed in the one sash (23) is partially separated from the extending portion (23c), the fitting is performed. A part (23c ′) of the extended portion (23c) is left on the side of the combined recess (23b) and is cut off, and the fitting recess (22b) formed in the other sash (22) is extended to the extended portion (22c). When a predetermined distance (L) is excised, a part (23c ′) of the extension part (23c) is located on the extension part (22c) side from the boundary line between the fitting recess (22b) and the extension part (22c). ) At a position close to the amount of the first sash (23), and after being bent, in addition to the fitting recess (23b) formed in the one sash (23), a part (23c ′) of the extended portion (23c) ) Of the fitting recess (2) remaining in the other sash (22). And wherein the linking joined to the end portion (22c ') of the b) and extended portion remaining on it (22c).

  The invention according to claim 5 is the invention according to claims 1 to 4, wherein the door (1) is integrally and integrally extruded from the upper edge side to the pillar side through the corner part (X). While installing the door weather strip (30), a gap (S) is formed between the fitting recesses (22b, 23b) and the extended portions (22c, 23c) connected by the corner (X). It has a covering piece (31c) to be filled, and is provided with a seal portion (31) for sealing the inside and outside of the vehicle by elastically contacting the body panel (5) side together with the door weather strip (30).

The invention according to claim 6 is the invention according to claim 5, wherein the cut-off fitting is provided at a tip of the covering piece (31c) of the seal portion (31) on the fitting recess (22b, 23b) side. A vehicle outer lip (31d) that sandwiches a portion (22c ', 23c') of the extended portion (22c, 23c) remaining on the side of the fitting recess (22b, 23b) or the fitting recess (22b, 23b) side ) And an assembly protrusion (31e), and further on the vehicle interior side of the assembly protrusion (31e), there is provided an interior lip (31f) that contacts the fitting recess (22b, 23b) side. Features.
That is, as in the inventions according to claim 1 and claim 3, when the fitting recess is separated from the extended portion without particularly leaving a part of the extended portion, the vehicle outer lip (31d) and the assembly protrusion (31e) are separated. ) Sandwiches the part of the separated fitting recess, and when separating the fitting recess from the extending part leaving a part of the extending part as in the inventions according to claim 2 and claim 4, The lip (31d) and the assembly protrusion (31e) sandwich a part of the extended portion left on the fitting recess side by the separation.

  Note that symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and modes for carrying out the invention described later.

According to the first aspect of the present invention, in the corner portion of the automobile door where the roof-side sash and the pillar-side sash formed with the fitting recess and the extending portion are abutted, the fitting recess formed in both sashes. Each part is separated from the extended part and curved toward the inner peripheral side of the door, and the ends are joined and joined by, for example, welding or adhesive bonding, and the fitting recess is connected to the door from the upper edge side. Since the door weather strip that has been integrally extruded to the pillar side through the corner portion can be attached, there is no need to mold and connect the two extruded door weather strips at the corner portion.
Therefore, since the mold forming part can be eliminated at the corner part of the door weather strip, the cost can be reduced. Also, since the door and body panel can be sealed with one seamless door weather strip from the door upper edge to the pillar through the corner, it has an excellent sealing function. can get.

  In addition, the fitting recess formed so that one door weatherstrip can be attached even at the corner portion, the fitting recess formed in both sashes is partly separated from the extended portion, respectively, and the inner side of the door Since it is sufficient to work by bending the ends and joining the ends together, it is not necessary to cut the sash as shown in the conventional example, and the number of parts is not particularly increased. Further, it is not necessary to set the dimensions with high accuracy in order to overlap the sashes.

Furthermore, in addition to joining and connecting the ends of the curved fitting recesses in the corner part, the ends of the extended parts formed on both sashes and extending to the corner part side are also connected by joining, If both of these joints are processed by welding or by bonding with an adhesive, the strength is superior to that in which both sashes are stacked and fixed without welding as shown in the conventional example. .
In addition, since the fitting recess is curved and connected to the inner peripheral side of the door at the corner portion, a gap is generated between the fitting recess and the extending portion, so that the amount of sash (for example, the amount of steel) can be reduced. The weight of the sash can be reduced.

  According to the second aspect of the present invention, when the fitting recesses formed in both sashes are partially separated from the extension part, the part of the extension part is left on the fitting recess side to be separated and curved. After that, in addition to the fitting recess, some ends of the extended portion are also joined and connected, so that the joining treatment area by welding or adhesion extends by the length of a part of the extended portion, and the joining strength Will improve.

According to the invention of claim 3, the fitting recess formed so that one door weatherstrip can be attached even at the corner is formed in one of the roof side sash and the pillar side sash. The fitting recess is partially cut off from the extended portion and curved toward the inner peripheral side of the door, and the fitting recess formed on the other sash is cut away by a predetermined distance from the extended portion, and the end of the fitting recess Since the parts are joined and connected, the mold forming part can be eliminated and an excellent sealing function can be obtained as in the invention according to claim 1.
In particular, according to the invention according to claim 3, unlike the invention according to claim 1, a process of cutting off the fitting recess on the other sash side is required, but the process of bending toward the inner peripheral side of the door is required. Since only one sash side is provided, the machining operation can be performed in a short time. Note that the other sash side is cut off by a predetermined distance from the extended portion of the fitting recess, so that the operation is simple and easy.

  According to the invention of claim 4, when the fitting recess formed in one of the sashes is partly separated from the extension part, the part of the extension part is left on the fitting recess side, and the other part is separated. When the fitting recess formed in the sash is excised by a predetermined distance from the extended portion, a position where a part of the extended portion is closer to the extended portion side than the boundary line between the fitting concave portion and the extended portion After cutting and curving with the fitting recesses formed in one of the sashes, a part of the extension part is connected to the other fitting sash remaining in the other sash and the extension part remaining there. Since it joins and connects with the edge part of a part, the joining process area | region by welding and adhesion | attachment extends only the length of a part of extension part, and joining strength improves.

  According to the invention of claim 5, in addition to the effects of the inventions of claims 1 to 4, the door is integrally extruded from the door upper edge side through the corner part to the pillar side. Since the weather strip is attached and another seal portion is provided, an automobile door structure having a further excellent sealing function is provided. In addition, since the seal portion has a covering piece that fills a gap formed between the fitting recessed portion side and the extending portion side connected at the corner portion, the appearance is good.

  According to the invention of claim 6, in addition to the function and effect of the invention of claim 5, at the front end of the covering piece, the part of the separated fitting recess or the extension left on the fitting recess side is provided. A car outer lip that sandwiches a part of the part and an assembly protrusion are provided, and a car inner lip that abuts the fitting recess is provided on the inner side of the assembly protrusion. The strength can be improved, and the separated part is neatly covered and looks good.

It is an external appearance side view which shows the manufacturing process of the door structure for motor vehicles which concerns on 1st Embodiment of this invention. FIG. 3 is an enlarged cross-sectional view taken along the line CC of FIG. 1 showing a state in which the door weather strip, the sub seal portion, and the glass run are attached to the automotive door structure according to the first embodiment of the present invention. FIG. 2 is an enlarged sectional view taken along line DD of FIG. 1 showing a state in which a door weather strip, a sub seal part, and a glass run are attached to the automotive door structure according to the first embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view taken along line EE of FIG. 1 showing a state in which the door weather strip, the sub seal portion, and the glass run are attached to the automotive door structure according to the first embodiment of the present invention. It is an external appearance perspective view which shows the structure around the corner part of the sub seal | sticker part attached to the door structure for motor vehicles based on 1st Embodiment of this invention. It is an external appearance side view which shows the manufacturing process of the door structure for motor vehicles based on 2nd Embodiment of this invention. It is an external appearance side view which shows the manufacturing process of the door structure for motor vehicles which concerns on 3rd Embodiment of this invention. FIG. 8 is an enlarged cross-sectional view taken along line FF in FIG. 7, showing a state in which a door weather strip, a sub seal part, and a glass run are attached to an automotive door structure according to a third embodiment of the present invention. It is an external appearance side view which shows a motor vehicle. FIG. 10 is an enlarged side view showing a configuration of a sash around an X portion shown in FIG. 9. It is the AA line expanded sectional view of FIG. 10 which shows the state in which the door weather strip, the sub seal | sticker part, and the glass run were attached by the door structure for motor vehicles based on a prior art example. It is the BB expanded sectional view of FIG. 10 which shows the state in which the door weather strip, the sub seal | sticker part, and the glass run were attached by the door structure for motor vehicles based on a prior art example. It is an external appearance perspective view which shows the structure around the corner part of the door weather strip attached to the door structure for motor vehicles based on a prior art example.

(First embodiment)
An automotive door structure according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 5 and FIG. 9. FIG. 1 is an external side view showing the processing steps of the automotive door structure according to the first embodiment of the present invention, and FIGS. 2 to 4 are CC, DD, and EE of FIG. 1, respectively. An enlarged cross section of the line is shown. The same parts as those in the conventional example are denoted by the same reference numerals.

  The automobile door structure according to the first embodiment of the present invention includes a roof-side sash 22 extending in a substantially horizontal direction so as to form an upper edge portion of the door 1 and a pillar-side sash 23 extending in the vertical direction of the door 1. As shown in FIG. 9, they are abutted at the corner portion X and joined by welding (alternatively, adhesion by an adhesive or welding and adhesion by an adhesive may be used in combination).

As shown in FIG. 2, the roof-side sash 22 is formed into a bag shape with a hollow cross section, and is formed so as to be positioned inside the vehicle when the door 1 is closed, and the door of the frame body 22 a. A fitting recess 22b formed on the outer peripheral side (upper side), an extending portion 22c formed so as to extend from the fitting recess 22b toward the vehicle outer side, and a design surface portion formed on the outer edge of the extending portion 22c 22d.
As shown in FIG. 3, the pillar-side sash 23 is formed into a bag shape with a hollow cross-section and is formed so as to be positioned inside the vehicle when the door 1 is closed, as shown in FIG. 3. A portion 23a, a fitting recess 23b formed on the door outer peripheral side (rear side) of the frame main body 23a, an extending portion 23c formed to extend from the fitting recess 23b toward the vehicle exterior, and an extension A design surface portion 23d formed on the outer edge of the portion 23c is provided.
The roof-side sash 22 and the pillar-side sash 23 are usually roll-formed or extruded. The roof-side sash 22 and the pillar-side sash 23 may be formed by being divided (cut) after being formed into an integral member.

  The frame main body portions 22 a and 23 a formed on both the sashes 22 and 23 are provided so that the bag-like portions protrude toward the inner peripheral side of the door 1. The fitting recesses 22 b and 23 b have a substantially C-shaped cross section, and the opening is formed toward the outer peripheral side of the door 1. The extending portions 22c and 23c are linear portions extending further outward from the vehicle outer ends of the frame body portions 22a and 23a, and linear portions extending further outward from the vehicle outer ends of the fitting recesses 22b and 23b. And three straight portions that are folded back at the design surface portions 22d and 23d and extend to the vehicle interior side are overlapped. The design surface portions 22d and 23d are formed in a flange shape in a direction extending from the vehicle inner side where the extending portions 22c and 23c extend from the vehicle inner side to the vehicle outer side, that is, from the inner peripheral side of the door 1 to the outer peripheral side.

And the roof side sash 22 and the pillar side sash 23 in the corner part X of the door 1 are joined in the following procedures.
First, frame main body portions 22a and 23a and fitting recesses 22b and 23b formed in the roof-side sash 22 and the pillar-side sash 23 to be arranged at the corner portion X of the door 1 are respectively set to predetermined distances from the extending portions 22c and 23c. For part R, cut from the end partly with a cutter.

  Next, as shown in the upper side of FIG. 1, only the frame main body portions 22 a and 23 a and the fitting concave portions 22 b and 23 b separated from the extending portions 22 c and 23 c are bent toward the inner peripheral side of the door 1. That is, the frame main body portion 22a and the fitting concave portion 22b of the roof side sash 22 cut downward from the extending portion 22c are stretch-bendered toward the inner peripheral side of the door 1 (lower left side in FIG. 1). The frame main body portion 23a and the fitting concave portion 23b of the pillar-side sash 23 that are smoothly curved by being applied and separated from the extending portion 23c to the front side are the inner peripheral side of the door 1 (lower left side in FIG. 1). It can be bent smoothly by applying a stretch bender process toward the surface.

  Then, as shown on the lower side of FIG. 1, the ends of the curved frame main body portions 22a and 23a and the fitting concave portions 22b and 23b are welded together (welded portion T2). Further, the ends of the extended portions 22c and 23c and the design surface portions 22d and 23d that are formed on the roof side sash 22 and the pillar side sash 23 and extend toward the corner portion X side are also welded (welded portion T3). In addition, about extension part 22c, 23c and design surface part 22d, 23d, an edge part is processed so that edge part may be faced | matched well. Here, the extended portion 22c on the roof side sash 22 side and the end portion of the design surface portion 22d, and the extended portion 23c on the pillar side sash 23 side and the end portion of the design surface portion 23d are cut obliquely so that the slopes come into contact with each other. However, as shown in FIG. 10 shown in the conventional example, the extended portion 22c and the design surface portion 22d on the roof side sash 22 side are connected to the extended portion 23c and the design surface portion 23d on the pillar side sash 23 side. On the other hand, the extension part 23c on the pillar-side sash 23 side and the upper end surface of the design surface part 23d are brought into contact with the lower surface of the extension part 22c on the roof-side sash 22 side and the end part of the design surface part 22d. You may make it process a process to the edge part of extension part 22c, 23c and design surface part 22d, 23d so that it may contact | connect.

The degree of curvature of the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b joined by welding at the corner portion X is continuously integrated from the door upper edge side through the corner portion X to the pillar side. The extruded door weather strip 30 is smooth enough to exhibit the sealing function so that the hollow seal portion 30b of the door weather strip 30 does not cause wrinkles or sink marks in the corner portion X.
Further, the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b formed in the roof-side sash 22 and the pillar-side sash 23 scheduled to be arranged at the corner portion X of the door 1 are separated from the extending portions 22c and 23c. The distance R is a corner portion when the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b separated from the extending portions 22c and 23c of both sashes 22 and 23 are bent and the end portions are welded to each other. This indicates that the extending portions 22c and 23c extending to the X side and the design surface portions 22d and 23d are in contact with each other and can be welded.

Then, as shown in FIGS. 2 to 4, the door weather strip 30 that is integrally extruded from the upper edge side of the door to the pillar side through the corner X is actually fitted into the fitting recesses 22b and 23b. When the door weather strip 30 is attached to the door, the cross-sectional shape of the door weather strip 30 comprising the attachment base portion 30a and the hollow seal portion 30b integrally formed therewith is the same.
The door weather strip 30 has an attachment base 30a fitted into the fitting recesses 22b and 23b, and a hollow seal portion 30b formed integrally with the attachment base 30a and elastically contacting the body panel 5 when the door 1 is closed to seal the inside and outside of the vehicle. ing.

Moreover, the sub seal | sticker part 31 is attached to the outer peripheral side of the door 1 of the extended parts 22c and 23c from the design surface parts 22d and 23d. The sub seal portion 31 is locked to the design surface portions 22 d and 23 d and is integrally formed with the mounting base portion 31 a and the mounting base portion 31 a that covers the portions of the extending portions 22 c and 23 c exposed on the outer peripheral side of the door 1. Similar to the hollow seal portion 30b, when closed, it has a seal lip portion 31b having a generally tongue-shaped cross section that elastically contacts the body panel 5 to seal the inside and outside of the vehicle. Moreover, the sub seal part 31 has the covering piece 31c which fills the clearance gap S which arises between the fitting recessed parts 22b and 23b connected by the corner part X, and the extended parts 22c and 23c, and improves appearance. In addition, at the corner portion X, the outer lip 31d and the assembly protrusion 31e that sandwich the portions of the fitting recesses 22b and 23b from which the extending portions 22c and 23c are separated by a cutter are provided at the tip of the covering piece 31c of the sub seal portion 31. A vehicle inner lip 31f is provided on the vehicle inner side of the assembly protrusion 31e. The vehicle inner lip 31f is in contact with a linear portion extending from the vehicle outer end of the fitting recess 22b, 23b to the vehicle outer side.
Furthermore, the glass run 12 is attached to the inner peripheral side of the door 1 of the extending portions 22c and 23c outside the frame main body portions 22a and 23a. The glass run 12 includes an attachment base 12a having a substantially U-shaped cross section, an inward lip portion 12b that protrudes inward from both ends of the attachment base 12 and is in sliding contact with the door glass 6 that moves up and down from the outside and the inside of the vehicle. It has an inner lip portion 12c. In the corner portion X, as shown in FIG. 4, the side wall on the vehicle inner side of the mounting base portion 12a and the vehicle inner lip portion 12c are arranged so that the base of the vehicle inner lip portion 12c of the glass run 12 reaches the frame main body portions 22a and 23a. The mounting base 12a of the glass run 12 changes from a substantially U-shaped cross section. And the glass run 12 is being fixed so that it may be pinched | interposed between the vehicle outer side site | part of the sub seal | sticker part 31, and frame main-body part 22a, 23a.

  According to the automobile door structure described in the first embodiment configured as described above, both sashes 22 and 23 are provided at the corner portion X of the automobile door 1 where the roof-side sash 22 and the pillar-side sash 23 abut each other. The frame main body portions 22a and 23a and the fitting concave portions 22b and 23b formed in the above are partially cut off from the extending portions 22c and 23c, respectively, bent toward the inner peripheral side of the door, and the end portions are welded together. Since the door weather strip 30 that is integrally extruded continuously from the door upper edge side to the pillar side through the corner X can be attached to the fitting recesses 22b and 23b, the mold is formed at the corner X. The molding part for forming and connecting can be eliminated, and the cost can be reduced. In addition, the door 1 and the body panel 5 can be sealed with a single door weather strip 30 that is extruded seamlessly from the door upper edge to the pillar through the corner X. A sealing function can be obtained.

  Further, the frame body portions 22a and 23a and the fitting recesses 22b and 23b of both the sashes 22 and 23 formed in the corner portion X are extended from the fitting recesses 22b and 23b formed in the both sashes 22 and 23, respectively. , 23c, and then partially cut away from each other, then bent toward the inner periphery of the door and welded together to connect the ends. Is not an increase.

Furthermore, in addition to welding the ends of the curved frame main body portions 22a and 23a and the fitting concave portions 22b and 23b at the corner portion X, the corner portions X are formed on both sashes 22 and 23 and are respectively formed on the corner portion X side. Since the extended portions 22c and 23c and the end portions of the design surface portions 22d and 23d are also connected by welding, the strength is excellent.
Further, the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b are curved and connected to the inner peripheral side of the door at the corner portion X so that a gap S is formed between the fitting concave portions 22b and 23b and the extending portions 22c and 23c. Therefore, the material amount (for example, steel material amount) of the sashes 22 and 23 can be suppressed, and the weight of the sashes 22 and 23 can be reduced.

  In addition, at the corner portion X, a front end of the covering piece 31c of the sub seal portion 31 is provided with an outside lip 31d and an assembly protrusion 31e that sandwich the separated portions of the fitting recesses 22b and 23b. Since the vehicle interior lip 31f that contacts the fitting recesses 22b and 23b is provided on the vehicle interior, it is possible to improve the assembly strength of the sub seal part 31 with respect to the fitting recesses 22b and 23b, and to separate the fitting. The portions of the joint recesses 22b and 23b are covered nicely and look good.

(Second Embodiment)
Next, an automotive door structure according to a second embodiment of the present invention will be described with reference to FIG. FIG. 6 is an external side view showing the processing steps of the automotive door structure according to the second embodiment of the present invention.
In the automotive door structure according to the first embodiment of the present invention, the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b in the corner portion X are extended from the end portions of the extending portions 22c and 23c of both the sashes 22 and 23. Although partially cut with a cutter and then subjected to stretch bender processing and curved and welded, the automobile door structure according to the second embodiment of the present invention is one of both sashes 22 and 23 as shown in FIG. After the frame body 23a and the fitting recess 23b formed on one sash side, here the pillar-side sash 23, are partly separated from the extension 23c with a cutter, stretch bender processing is applied to the inner peripheral side of the door. It is curved toward it.

Further, the frame main body portion 22a and the fitting concave portion 22b formed on the other sash side, here, the roof side sash 22, are excised from the extending portion 22c by a predetermined distance L (cut portion V).
The end portions of the frame main body portion 23a and the fitting concave portion 23b that are curved of the pillar side sash 23 are welded to the end portions of the frame main body portion 22a and the fitting concave portion 22b that remain on the roof side sash 22 side (welded portion T4). And the ends of the extended portions 22c and 23c and the design surface portions 22d and 23d formed on both sashes 22 and 23 and extending toward the corner portion X are welded (welded portion T5) to each other. is there.

  According to this, it is necessary to cut out the frame main body portion 22a and the fitting recess 22b of the roof side sash 22, but the processing to bend toward the inner peripheral side of the door is only on the pillar side sash 23 side. Therefore, the machining operation can be performed in a short time. Note that the roof side sash 22 is cut off by a predetermined distance L from the extended portion 22c of the frame main body portion 22a and the fitting concave portion 22b, and the work is simple and easy.

  In the second embodiment, a part of the pillar-side sash 23 is curved, but conversely, the roof-side sash 22 is curved, and a part of the pillar-side sash 23 is cut and connected. Also good.

(Third embodiment)
Next, an automotive door structure according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 7 is an external side view showing the processing steps of the automotive door structure according to the third embodiment of the present invention, and FIG. 8 is an enlarged sectional view taken along line FF in FIG.
In the automotive door structure according to the first embodiment of the present invention, the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b in the corner portion X are extended from the end portions of the extending portions 22c and 23c of both the sashes 22 and 23. Although partially cut by a cutter at the boundary between the fitting recesses 22b and 23b and the extending portions 22c and 23c, the door structure for an automobile according to the third embodiment of the present invention is as shown in FIG. In addition, they are cut off at positions closer to the extending portions 22c and 23c than the boundary lines between the fitting recesses 22b and 23b and the extending portions 22c and 23c.
That is, after being cut and curved with the portions 22c 'and 23c' of the extended portions 22c and 23c left on the fitting recesses 22b and 23b, the fitting recesses 22b and 23b are fitted to the ends of the fitting recesses 22b and 23b. The ends of the portions 22c ′ and 23c ′ of the extended portions 22c and 23c remaining on the side of the combined recesses 22b and 23b are also welded (welded portion T6) to be connected. Further, the ends of the extended portions 22c and 23c and the design surface portions 22d and 23d that are formed on the roof-side sash 22 and the pillar-side sash 23 and extend toward the corner X side are also welded (welded T7).
Further, in the corner portion X, the vehicle outer side lip 31d and the assembly protrusion 31e provided at the tip of the covering piece 31c of the sub seal portion 31 are one of the extended portions 22c and 23c left on the fitting concave portions 22b and 23b side. The parts 22c ′ and 23c ′ are sandwiched, and in particular, the assembly protrusion 31e is assembled so as to be engaged with the end of the linear part that is folded back at the design surface parts 22d and 23d and extends to the vehicle interior side. Further, the vehicle inner lip 31f provided on the vehicle inner side of the assembly protrusion 31e is in contact with a linear portion extending from the vehicle outer end portion of the fitting recess 22b, 23b to the vehicle outer side.

According to this, after separating and leaving curved portions 22c 'and 23c' of the extended portions 22c and 23c on the fitting concave portions 22b and 23b, the extended portions 22c are added to the fitted concave portions 22b and 23b. 23c, the end portions of the portions 22c ′ and 23c ′ are also joined and connected to each other. This increases the bonding strength. Further, the remaining portions 22c ′ and 23c ′ of the extending portions 22c and 23c extend from the frame main body portions 22a and 23a to the vehicle outer side as described above and from the fitting recesses 22b and 23b to the vehicle outer side. Since the three straight portions of the straight portions and the straight portions that are folded back at the design surface portions 22d and 23d and extend toward the vehicle interior are joined by welding or the like, the strength is high even if they are cut off.
Further, since the portions 22c ′ and 23c ′ of the extending portions 22c and 23c protrude toward the vehicle outer side, the vehicle inner side of the sub seal portion 31 can be locked, and the sub seal portion 31 can be stably attached. it can.

  In addition, at the corner portion X, the front end of the covering piece 31c of the sub seal portion 31 has an outer lip 31d that sandwiches the portions 22c ′ and 23c ′ of the extended portions 22c and 23c left on the fitting recess side by separation. Since the assembly protrusion 31e is provided and the vehicle interior lip 31f that contacts the fitting recesses 22b and 23b is provided further inside the assembly protrusion 31e, the sub seal portion 31 is assembled to the engagement recesses 22b and 23b. The strength can be improved, and the separated portions 22c 'and 23c' of the extended portions 22c and 23c can be covered and covered with a good appearance. In particular, the assembly protrusion 31e is assembled so as to be folded at the design surface portions 22d and 23d and locked to the end portion of the linear portion extending inward of the vehicle, so that the assembly strength is sufficiently large.

Further, the portions 22c ′ and 23c ′ of the extended portions 22c and 23c are separated from the fitting concave portions 22b and 23b, and after bending, the portions 22c of the extended portions 22c and 23c are added in addition to the fitting concave portions 22b and 23b. Joining and connecting the ends of ', 23c' can also be applied to the automobile door structure according to the second embodiment of the present invention.
That is, when the fitting recess 23b formed in the pillar-side sash 23 is partially separated from the extending portion 23c, the fitting-side recess 23b is separated from the extending recess 23b while leaving a part 23c ′ of the extending portion 23c. When the fitting recess 22b formed in the part is excised by a predetermined distance L from the extending portion 22c, a part 23c of the extending portion 23c is located on the extending portion 22c side from the boundary line between the fitting recessed portion 22b and the extending portion 22c. After cutting and curving at a position close to the amount of ', the end of the part 23c' of the extended portion 23c is added to the roof-side sash 22 in addition to the fitting recess 23b formed in the pillar-side sash 23. You may make it join and connect with the edge part 22c 'of the part 22c' of the extension part 22c which remained in the remaining fitting recessed part 22b.
And it has the covering piece 31c which fills the clearance gap S which arises between the fitting recessed part 23b side connected by the corner part X, and the extended part 23c side, and is elastically contacted with the body weather 5 side with the door weatherstrip 30 inside and outside the vehicle A sub seal part 31 is provided to seal the part 23c 'of the extended part 23c left on the fitting recess 23b side by separation at the tip of the fitting recess 23b of the covering piece 31c of the sub seal part 31. The vehicle outer lip 31d and the assembly protrusion 31e may be provided, and the vehicle interior lip 31f that contacts the fitting recess 23b may be provided further on the vehicle interior side of the assembly projection 31e.

In the first embodiment of the present invention, the frame main body portions 22a and 23a and the fitting concave portions 22b and 23b are separated from the extended portions 22c and 23c by the same distance, that is, a predetermined distance R. Thus, in the second embodiment, the frame main body portion 23a and the fitting concave portion 23b on the one sash 23 side are separated from the extending portion 23c, but the middle portion thereof, that is, the frame main body portion from the roof side sash 22 is used. The distance for separating 22a and the fitting recess 22b from the extending portion 22c may be different from the distance for separating the frame main body portion 23a and the fitting recess 23b from the extending portion 23c from the pillar-side sash 23. In this case, in order to allow the extending portions 22c and 23c extending to the corner portion X side and the design surface portions 22d and 23d to be in contact with each other and weldable, the curved fitting concave portion on one of the sash sides is partially However, it is easy to perform the process of partially cutting the curved fitting recess.
In the first and second embodiments of the present invention, the frame main body portions 22a and 23a welded at the corner portion X and the extending portion 22c extending toward the corner portion X on the door outer peripheral side of the fitting concave portions 22b and 23b. , 23c and the design surface portions 22d, 23d are welded, but only the design surface portions 22d, 23d can be welded by cutting off the extending portions 22c, 23c side.

DESCRIPTION OF SYMBOLS 1 Door 2 Roof side sash 2a Frame main-body part 2b Fitting recessed part 2c Extension part 2d Design surface part 3 Pillar side sash 3a Frame main part 3b Fitting recessed part 3c Extension part 3d Design surface part 5 Body panel 6 Door glass 10 Door weather strip 10a Mounting base portion 10b Hollow seal portion 10Y Door weather strip extrusion molding portion 10Z Door weather strip molding portion 11 Sub seal portion 11a Mounting base portion 11b Seal lip portion 12 Glass run 12a Mounting base portion 12b Car outer lip portion 12c Car inner lip portion 22 Roof Side sash 22a Frame body portion 22b Fitting recess 22c Extension portion 22c 'Part of extension portion 22d Design surface portion 23 Pillar side sash 23a Frame body portion 23b Fitting recess portion 23c Extension portion 23c' Part of extension portion 23d Intention Surface 30 a door weather strip 30a mounted base portion 30b hollow seal portion 31 sub seal 31a mounted base portion 31b seal lip portion 31c covering piece 31d exterior side lip 31e assembled protrusion 31f interior lip S gaps T1~T7 weld V cutout X corner

Claims (6)

The roof side sash that forms the upper edge of the door and the pillar-side sash that extends in the vertical direction of the door are abutted at the corner, and the door weather strip that elastically contacts the body panel side to seal the inside and outside of the vehicle on the inside of both sashes Is a door structure for an automobile in which a fitting recess is formed, and an extending portion extending from the fitting recess toward the outside of the vehicle is formed,
In the corner portion, the fitting concave portions formed in both the sashes are partially cut off from the extending portions, respectively, curved toward the inner peripheral side of the door, and the end portions of the fitting concave portions are joined and connected. In addition, the end portions of the extending portions formed on both sashes and extending to the corner portion side are joined and joined together, and at least from the door upper edge side to the pillar side through the corner portion and continuously and integrally molded. A door structure for an automobile, wherein the door weather strip can be attached.   When partially disengaging the fitting recesses formed in the two sashes from the extending part, respectively, leaving the part of the extending part on the fitting recess side, and then cutting the fitting, The automobile door structure according to claim 1, wherein in addition to the recess, a part of end portions of the extended portion are joined and connected. The roof side sash that forms the upper edge of the door and the pillar-side sash that extends in the vertical direction of the door are abutted at the corner, and the door weather strip that elastically contacts the body panel side to seal the inside and outside of the vehicle on the inside of both sashes Is a door structure for an automobile in which a fitting recess is formed, and an extending portion extending from the fitting recess toward the outside of the vehicle is formed,
In the corner portion, a fitting recess formed in one of the two sashes is partially separated from the extending portion and curved toward the inner peripheral side of the door, and the other sash of the two sashes is curved. The formed fitting recess is cut by a predetermined distance from the extending portion, and the end of the fitting recess curved on the one sash is joined to the end of the fitting recess remaining on the other sash. Connect and connect the ends of the extended parts formed on both sashes that extend to the corner part side, and extrude them at least from the door upper edge side through the corner part to the pillar side. An automobile door structure characterized in that the molded door weather strip can be attached.   When partially disengaging the fitting recess formed in the one sash from the extending portion, the fitting recess formed in the other sash is separated by leaving a part of the extending portion on the fitting recess side. When excising the concave portion by a predetermined distance from the extended portion, the concave portion is excised at a position close to the extended portion side from the boundary line between the fitting concave portion and the extended portion, and the curved portion is bent. After that, in addition to the fitting recess formed in the one sash, the end of a part of the extending portion is connected to the end of the fitting recess remaining in the other sash and the portion of the extending portion remaining there. The door structure for an automobile according to claim 3, wherein the door structure is joined and connected to the portion.   A door weather strip that is integrally extruded from the door upper edge side through the corner portion to the pillar side is attached, and the fitting recessed portion side and the extending portion side connected by the corner portion are attached. 5. A sealing part that includes a covering piece that fills a gap formed therebetween, and that seals the inside and outside of the vehicle by elastically contacting the body panel side together with the door weather strip. The door structure for automobiles described in 1.   At the front end of the covering concave portion of the sealing portion, a pair of the outer side lip that sandwiches a part of the separated fitting concave portion or a part of the extended portion left on the fitting concave portion side. 6. The door structure for an automobile according to claim 5, wherein a mounting protrusion is provided, and a vehicle inner lip that abuts on the fitting recess side is further provided on the vehicle inner side of the assembly protrusion.