JP2004338612A - Door sash for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with polishing and finishing work by abolishing welding on the flange surface side. <P>SOLUTION: A stepped part 311 is provided in the middle of a wall surface formed ranging from the surface side of the flange part 7 to the joint surface of bottom parts 41, 51 at the terminal of a sash member 3 on the roof side. A joint surface 31 having an inclined surface with an angle of approximately 45° is formed ranging from the lower part of the stepped part 311 to a contact part 44. Relative to a sash member 2 on the pillar side, a stepped overhang part 211 formed to overlap with the stepped part 311 on the roof side sash member 3 is provided. A joint surface 21 having an inclined surface with an angle of approximately 45° is formed ranging from the lower part of the overhang part 211 to a contact part 44'. The step depth of the stepped part 311 of the sash member 3 and the height of the overhang part are set at approximately the same value. The joint surfaces 21, 31 are jointed each other by a welding means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle door sash, and particularly relates to a door frame (a sash shape member) formed by a roll forming means or the like using a cold-rolled steel plate or the like, and the end faces thereof are butt-joined to each other. The present invention relates to a door sash for a vehicle in which welding means is not applied to the surface side of a flange portion serving as a design surface so that grinding finish on the flange portion surface side is unnecessary. .
[0002]
[Prior art]
Generally, a vehicle door sash around a window glass of a door forming a side surface of an automobile is formed along a door opening surface of a roof panel as shown in, for example, JP-A-8-155568 or FIG. The roof-side sash member 200 and the vertical sash member 100 formed along the pillars B, which are vertically arranged pillars, are joined by welding means at the butting portion 300. Thus, the sash assembly 400 is formed. The vehicle door 600 is formed by incorporating the sash assembly 400 into the door panel body 500. By the way, since the portion forming the door outer plate surface of the sash assembly 400 forming the vehicle door 600 forms a design surface, the surface is stepped or changed by sander means or the like after the connection by the welding means. It is designed to be finished without distortion or the like. And although it is finished to have such a clean surface, a coating process or the like is applied from the upper surface side.
[0003]
[Patent Document 1]
JP-A-8-155568
[Problems to be solved by the invention]
As described above, since the surface side of the flange portion subjected to the butt welding forms a design surface, the weld bead portion is rough-finished by sander finishing means or the like, and then finely processed. It is designed to be mirror-finished with sandpaper or the like having abrasive grains. Therefore, there is a problem that much work is required for the above finishing. In order to solve such a problem, welding is not performed on the surface side of the flange portion of the sash member forming the door outer plate surface at the butt portion for joining the cut surfaces of the sash-shaped members together, and It is an object (problem) of the present invention to provide a vehicle door sash having a predetermined joining strength by applying a welding means to another portion forming the joining portion.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has taken the following measures. In other words, according to the first aspect of the present invention, a groove for accommodating the glass run channel and a weatherstrip provided on the back side of the groove and formed such that the bottom surface is in contact with the bottom surface of the groove. These sashes are formed on the basis of a sash type material comprising a retainer portion for holding and a flange portion formed so as to connect between the retainer portion and the groove portion and forming a part of a door outer plate surface. For a vehicle door sash in which a plurality of shape members are prepared and any two of them are joined in a state where the cut surfaces are joined to each other, the butt joint is provided on the flange portion side. And a door formed on a stepped portion provided from the front surface side of the flange portion toward the joint surface side between the bottom portions, and a door opposite to the front surface side of the flange portion. A joining surface provided on the side forming the inner side surface and formed by an inclined surface having a predetermined inclination angle, and a portion excluding the surface side of the flange portion is welded by It was decided to adopt a configuration in which it was joined at.
[0006]
By adopting such a configuration, according to the present invention, a stepped portion is provided in a portion near the front surface side of the flange portion in a butt joint portion for joining the cut surfaces of the two sash members to each other. The connecting portion on the flange portion side is formed by overlapping the stepped portions, and the other remaining portion is formed with a joining surface consisting of an inclined surface. Length) is increased, and the joint rigidity and the like of the entire sash assembly are increased. In addition, since the remaining portion except for the front side of the flange portion forming the design surface of the door outer plate surface is joined using predetermined welding means, welding is performed on the flange portion surface forming the design surface. Is not performed, and grinding finish of the weld bead portion, which has been conventionally performed, becomes unnecessary. Then, a black tape is attached (attached) to the front surface side of such a flange portion, so that the appearance of the design surface is secured.
As a result, according to the present invention, the manufacturing cost of the vehicle door sash can be reduced.
[0007]
Next, the second aspect of the invention will be described. The basic structure of the present invention is the same as that of the first aspect. That is, according to the present invention, in the vehicle door sash according to the first aspect, a thermosetting resin sheet is inserted at the abutting surface formed between the flange portions, and the thermosetting resin sheet is inserted. The thermosetting resin sheet is cured in a state of being sandwiched between the two flange portions so that the two flange portions are joined to each other.
[0008]
By adopting such a configuration, the device according to the present invention exhibits the following operation in addition to the above-described claim 1. That is, the thermosetting resin sheet is inserted at the abutting portion between the two flange portions, and the thermosetting resin sheet protruding toward the surface of the flange portion serving as the design surface in such a state is ground together with the flange portion. Finish. The thermosetting resin material is hardened by the frictional heat generated at the time of the grinding finish, and the butted portions at both flange portions are joined. As a result, the two flange portions forming the butted portion are bonded to each other via the cured thermosetting resin sheet. As a result, the joining strength of the butt portion in the flange portion is enhanced, and the joining surface (butting surface) between the flange portions and the welding joining surface in the other portions have a predetermined intersection angle. Since it is composed of two surfaces formed to intersect, the resistance to the opening moment input to the sash assembly is increased. Therefore, the opening phenomenon at the butt joint is suppressed, and it is possible to prevent the occurrence of cracks or the like in the black tape provided on the flange surface.
[0009]
Next, a third aspect of the present invention will be described. This is also basically the same as the first or second aspect. That is, in the present invention, with respect to the vehicle door sash according to claim 1 or 2, a contact line formed on the front surface side of the flange portion and formed by the abutting surface of both flange portions. Is provided on an extension of the inner contour line formed by the flange portion of one of the sash members. By adopting such a configuration, in the present invention, the line by the abutting surface formed on the front surface side of the flange portion that forms the design surface matches the inner contour line of the flange portion. That is, even when the surface finish is omitted in the state where the sash assembly is assembled, the appearance of the surface of the flange portion is not uncomfortable.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. The present embodiment relates to a door sash for a vehicle, and particularly, in the present embodiment, a door sash used for a rear side door among side doors for a vehicle will be described as an example. And Specifically, the door sash according to the present embodiment is formed based on a sash-shaped member having a predetermined cross-sectional shape as shown in FIG. This is formed by using a single cold-rolled steel sheet or the like by a roll forming means so as to have a constant sectional shape.
That is, the grooves 4, 4 'in which a glass run channel (not shown) is accommodated, and the grooves 4, 4' are provided on the back side of the grooves 4, 4 '. Of the weatherstrip, formed by being joined to the bottom portions 41, 41 'of the base member by welding means 6 such as spot welding, and the side walls of the retainer portions 5, 5' and the grooves 4, 4 '. 42, 42 ', 52, 52' are formed so as to connect with each other, and flange portions 7, 7 'forming part of the door skin surface, and one side surface of the groove portions 4, 4'. And a contact portion 44, 44 'which is formed on the vehicle body side weather strip and which is in contact with the vehicle body side weather strip.
[0011]
The sash assembly 1 is formed by preparing a plurality of such sash-shaped members and joining their ends by a predetermined means. Specifically, one of these, for example, the roof side sash member 3 is formed into a form conforming to the opening curved surface of the roof by performing a bending process or the like, and the other is formed into, for example, a B pillar. Then, the pillar-shaped sash member 2 is formed by vertical forming. One end of each of these components is cut into a predetermined shape and, as shown in FIGS. 2 to 4, for example, they are joined to form a sash assembly 1 for the rear side door.
[0012]
Next, a connection (joining) structure of the roof side sash member 3 and the pillar side sash member 2 around the butting surface C will be described with reference to FIGS. That is, the roof side sash member 3 and the pillar side sash member 2 formed by the roll forming means or the like are cut at their respective ends so that the joints have a predetermined form (see FIGS. 2 and 3). . Then, the cut surfaces are butted against each other.
[0013]
In this embodiment, as shown in FIGS. 2 and 3, the ends of the sash members on the side of the butt portion are cut in a stepped manner. . Then, the portions formed in a stepped shape are overlapped. Specifically, as shown in FIG. 2, at the end of the roof side sash member 3, from the surface side of the flange portion 7 to the middle of the wall surface formed by the joining surface of the bottom portions 41 and 51, The stepped portion 311 is formed by cutting out a substantially vertical shape and a stepped shape. Then, the angle of the joining portion is divided into two from the lower portion of the step portion 311, specifically, from the lower portion of the wall surface formed by the joining surface of the bottom portions 41 and 51 to the contact portion 44. Is cut so as to have a predetermined angle, for example, an inclination angle of 45 °, so that a joint surface 31 with the other sash member 2 is formed.
[0014]
On the other hand, the pillar side sash member 2 as the other sash member is also provided with a stepped overhang portion 211 formed so as to be superimposed on the stepped portion 311 of the roof side sash member 3. To do. Specifically, as shown in FIGS. 3 and 4, the step portion of the roof side sash member extends from the surface side of the flange portion 7 ′ to the middle of the wall surface formed by the joining surface of the bottom portions 41 ′ and 51 ′. The overhang portion 211 is provided so as to have a height (H) substantially equal to the value of the step depth (H) in 311. Then, from the lower portion of the overhang portion 211 to the contact portion 44 ′, a cutting process is performed so as to have a predetermined angle such that the angle of the joint portion is divided into two, for example, an inclination angle of 45 °. Then, the joint surface 21 is formed so as to face the joint surface 31 provided on the roof side sash member 3.
[0015]
The ends of the sash members 2 and 3 thus cut are joined to each other. Specifically, first, as shown in FIG. 2, the overhang portion 211 provided on the pillar-side sash member 2 is placed on the stepped portion 311 formed at the tip of the roof-side sash member 3 which has been cut (see FIG. 2). Overlap). At the same time, the respective joining surfaces 21 and 31 formed so as to have an inclined surface having a predetermined angle such that the angle of the joining portion is divided into two are brought into butt contact with each other. As a result, the ends of the sash members 2 and 3 are butted at a substantially right angle as shown in FIG. In such a state, the two 2 and 3 are joined using welding means such as arc welding mainly with the joining surfaces 21 and 31.
[0016]
The place where this butt welding is performed is, for example, as shown in FIG. 4, one of the side walls of the retainer portions 5 and 5 'and the portion (52, 52') on the back surface side of the flange portions 7 and 7 '. (Welding W1) and the contact portions 44, 44 'formed below the wall surface formed by the joint surfaces of the bottom surfaces 41, 41', 51, 51 '. (Welding W2), which is mainly provided in the vicinity of the connecting portion between the other side wall of the groove portion 4, 4 'and the contact portion 44, 44'. (Welding W3). As described above, in this embodiment, the sash members 2 and 3 are butt-joined in a state where the welding means is not applied to the flange portions 7 and 7 ′ forming the design surface. . By attaching a predetermined black tape or the like to the surfaces of the flange portions 7 and 7 'of the sash assembly 1 formed in this way, a vehicle door sash with excellent appearance can be efficiently formed (manufactured). It becomes.
[0017]
As described above, in the case where the welding means is not provided on the flange portions 7 and 7 'side, in order to further improve the strength and rigidity at the joint portion, in the present embodiment, the abutting surface is used. At C (see FIG. 1), a sheet-like adhesive (thermosetting resin sheet) 9 made of a thermosetting resin material as shown in FIGS. 2 and 3 is provided. Specifically, a part formed on the extension of the butted portion 73 formed at the tip end of the roof side sash member 3 and the inner peripheral line 71 ′ of the flange portion 7 ′ of the pillar side sash member 2. Then, a thermosetting resin sheet 9 is inserted (see FIG. 3). The thermosetting resin sheet 9 used here is used as an adhesive, and includes, for example, a sheet made of chloroprene foam as a base material and suitable for bonding between metals. The thermosetting resin sheet 9 has a thickness of 1 mm or less, a width of 10 mm, and a length of 25 mm to 35 mm. Further, the temperature condition at which the bonding is possible is preferably around 150 ° C. In the present embodiment, the thermosetting resin sheet 9 protruding from the surface side of the flange portions 7 and 7 'is sanded by means of sanding using disc-shaped sandpaper having predetermined abrasive grains from the flange portions 7 and 7' side. Cured by applying a light finishing process. Specifically, the thermosetting resin sheet 9 is hardened by frictional heat generated by grinding and finishing with the rotating disk-shaped sandpaper. Thus, not only the abutting surface C formed by the abutting portion 73 and the inner contour line 71 'but also the back surfaces of the flange portions 7, 7' of the roof side sash member 3 and the pillar side sash member 2. The thermosetting resin material also wraps around the side, and the two flange portions 7 and 7 ′ are firmly joined (joined). As a result, the strength and rigidity of the sash assembly 1 including the two sash members 2 and 3 joined by the thermosetting resin sheet 9 around the butting surface C are enhanced.
[0018]
Next, the operation and the like of the embodiment will be described. In the present embodiment, even if the surface side of the flange portions 7 and 7 'is not welded as in the conventional case, the other portions, particularly the contact portions 44 and 44', are mainly used. The portions are provided with the welded portions (W1, W2, W3) as shown in FIG. 4, so that the bonding strength and the rigidity around the butting surface C are sufficiently ensured. In addition, a thermosetting resin sheet 9 is inserted into the abutting surface C between the flange portions 7 and 7 ′, and the surface of the flange portions 7 and 7 ′ at the abutting portion is attached to the thermosetting resin sheet 9. Since the hardening is performed by frictional heat generated at the time of sanding by a grinding wheel or the like performed at the time of finishing, the strength and rigidity of the butt surface C can be enhanced by the adhesive action of the thermosetting resin sheet 9. Become. Through such a simple finishing step, the appearance of the surface portions of the flange portions 7, 7 'is ensured, and the sash assembly 1 in which the strength and rigidity of the joint portion are also ensured is formed. . By attaching a black tape to the surface of the sash assembly 1 thus formed on the side of the flange portions 7 and 7 ', a vehicle door sash having an excellent appearance can be efficiently formed. That is, since the outer surfaces of the flange portions 7 and 7 'serving as the design surfaces are not welded, a complicated and troublesome grinding work for shaving off a weld bead or the like becomes unnecessary. Therefore, the number of steps required for finishing is reduced, and the manufacturing cost is reduced.
[0019]
A modification of the butt surface C at the butt joint of the sash members 2 and 3 forming the sash assembly 1 will be described with reference to FIG. This is characterized in that, as shown in FIG. 5, the abutting surface C is formed on an extension of the inner contour line 71 of the flange portion 7 forming the roof side sash member 3. It is. Therefore, the step portion is formed from the flange portion 7 'on the pillar side sash member 2 side to the wall surface formed by the joint surface of the bottom portions 41' and 51 ', and is superimposed on the step portion. The overhang portion is formed on the flange portion 7 side of the roof side sash member 3. Then, in a state where the overhang portion provided on the roof side sash member 3 is placed (overlaid) on such a stepped portion, a predetermined angle of inclination such that the angle of the joint portion is divided into two. The sash assembly 1 is formed by joining the joining surfaces 21 and 31 formed so as to have surfaces. As described above, in this modified example, the position of the abutting surface C is formed on the extension of the inner contour 71 of the flange portion 7 forming the roof side sash member 3. Are the same as those shown in FIGS. 1 to 4 already described.
[0020]
Although the present embodiment has been described in detail with reference to the above drawings, the specific configuration is not limited to this embodiment. Specifically, although the rear side door has been described in the present embodiment, the technical content of the present invention can be applied to a front side door or a rear side door of the side door.
[0021]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the groove part accommodated in a glass run channel, and the retainer part for weather strip holding | maintenance provided in the back side of the said groove part and forming so that a bottom part may contact the bottom part of the said groove part A plurality of these sash-shaped members are prepared on the basis of a sash-shaped member formed by connecting a retainer portion and a groove portion and forming a part of a door outer plate surface. Then, with respect to the vehicle door sash which is joined in a state where the cut surfaces of any two of them are joined to each other, a stepped portion is provided near the surface side of the flange portion in the butt joint portion. By forming the connecting part on the flange part side by overlapping the stepped part, the other remaining part is formed with the joining surface consisting of the inclined surface Since the bonding line formed on the surface side of the flange portion is reduced, the state open mouth at the butted portion becomes inconspicuous. In addition, welding is not performed on the surface of the flange portion forming the design surface, and the need for grinding and finishing the weld bead portion, which has been conventionally performed, is eliminated. Further, since the door sash is formed by attaching (sticking) the black tape to the front surface side of such a flange portion, the manufacturing cost of the vehicle door sash can be reduced. It became so.
[0022]
Further, in the present invention, the thermosetting resin sheet is inserted at the abutting surface formed between the flange portions, and the thermosetting resin sheet is sandwiched between the flange portions. Since the thermosetting resin sheet is cured to adopt a configuration in which the two flange portions are joined to each other, the joining strength at the butt joint portion of both sash members is increased, and the butt surface or the opening is opened. The phenomenon has been prevented beforehand. Further, such a strengthening of the bonding strength is achieved by grinding and finishing the thermosetting resin sheet protruding to the surface of the flange portion serving as the design surface together with the flange portion. Since the thermosetting resin sheet placed between the portions is cured to join the butted portions of the two flange portions, the sander finishing conventionally performed has been omitted. As a result, the manufacturing cost of the sash assembly can be reduced. In addition, since the joining surface (butting surface) between the flange portions and the welding joining surface in the other portion are composed of two surfaces formed so as to intersect at a predetermined intersection angle, the sash assembly The opening force at the butt joint is suppressed, and the black tape provided on the flange surface is cracked. Can be prevented beforehand.
[0023]
Further, in the present invention, the contact line formed on the front surface side of the flange portion and formed by the abutting surface of both flange portions is formed by the flange portion of the sash member on either one side. Since the configuration is designed to be provided on an extension of the inner contour line that is formed, the line by the butted surface formed on the flange surface side that forms the design surface is the inner contour of the flange part. Thus, the appearance of the surface of the flange portion is improved when the sash assembly is assembled. Therefore, a door sash with excellent appearance can be efficiently formed (manufactured) by attaching a black tape to the surface of the flange portion of such a sash assembly or by attaching an appropriate garnish or the like. became.
[Brief description of the drawings]
FIG. 1 is a plan view showing the overall configuration of a sash assembly according to the present invention.
FIG. 2 is an exploded perspective view showing a form of a butted portion of each sash member forming the sash assembly according to the present invention.
FIG. 3 is an exploded view showing the overall configuration of a configuration in which a thermosetting resin sheet is sandwiched between abutting portions of flange portions.
FIG. 4 is an exploded cross-sectional view illustrating a welding portion at a butt joint portion of both sash members.
FIG. 5 is a plan view showing the contents of a modification in which the form of the abutting surface is changed.
FIG. 6 is a schematic external side view showing a conventional vehicle door sash.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sash assembly 2 Pillar side sash member 21 Joining surface 211 Overhang portion 3 Roof side sash member 31 Joining surface 311 Stepped portion 4 Groove portion 4 'Groove portion 41 Bottom portion 41' Bottom portion 42 Side wall (flange side)
42 'side wall (flange side)
44 Contact part 44 'Contact part 5 Retainer part 5' Retainer part 51 Bottom part 51 'Bottom part 52 Side wall (flange part side)
52 'Side wall (flange side)
7 Flange 7 'Flange 71 Inner line 71' Inner line 73 Butt 9 Thermosetting resin sheet

Claims (3)

A groove for accommodating the glass run channel, a retainer for weatherstrip being provided on the back side of the groove and having a bottom surface in contact with the bottom of the groove, A plurality of these sash-shaped members are prepared on the basis of a sash-shaped member that is formed so as to connect between the grooves and forms a part of the door outer plate surface, and includes a sash-shaped member. In a vehicle door sash for joining the cut surfaces of any two pieces in a state where the cut surfaces are joined to each other, the butt joint portion is provided on a flange portion side, and the butt joint portion is provided between the flange portion surface side and the bottom portion. One formed by a stepped portion provided toward the joining surface side, and one provided on the side forming the inner side surface of the door on the side opposite to the flange portion surface side. And a joining surface formed by an inclined surface having a predetermined inclination angle, and a portion excluding the surface side of the flange portion is joined by welding means. Door sash for vehicles. 2. The vehicle door sash according to claim 1, wherein a thermosetting resin sheet is inserted into the abutting surface formed between the flange portions, and the thermosetting resin sheet is sandwiched between the flange portions. A door sash for a vehicle, wherein the thermosetting resin sheet is cured in a state where the flange portion is joined to the thermosetting resin sheet. The vehicle door sash according to claim 1 or 2, wherein a contact line formed on a front surface side of the flange portion and formed by an abutting surface of the two flange portions is connected to one of the side surfaces. A door sash for a vehicle, wherein the sash is provided on an extension of an inner contour line formed by a flange portion of a sash-shaped member.

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