JP2008162443A - Door for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door for a vehicle capable of securing durability of a door by strengthening rigidity at a shape change part between a door panel body side and an outer plate of a door sash extending upward, and furthermore preventing cracks of a long hole formed on a door panel. <P>SOLUTION: This door comprises a door panel 4, coupling peripheral edges of an outer panel 1 and an inner panel 4 with each other, having an opening DW for a window, and having an upward opening 6 long in the fore-and-aft direction and formed by edges of both panels at a lower edge of an opening for a window and an inner space 5 formed below the opening; a door sash 2 provided at least at a fore-and-aft edges of the opening DW for the window and guiding a door glass 3 upward and downward; and a connection bracket 15 in which a vehicle inward extension piece 151 adhered to a back wall opposite to the window opening side of the door sash 2 and a vehicle outward vertical piece 153 connected to the outer panel side are bent. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle door provided with a door window that is mounted on a vehicle and is opened and closed by a door glass, and more particularly to a vehicle door that can ensure the coupling rigidity between a door sash and a door panel.

  The door of the vehicle is hinged to the entrance / exit edge so as to open / close the entrance / exit on the side of the vehicle body, or attached via a slide mechanism. This vehicle door includes a door panel having an outer panel and an inner panel coupled to each other and having an opening for a window, and a sash supported by the door panel along the opening for the window. The door panel has an upper opening that is long in the front and rear at the lower edge of the window opening and an internal space below it, and the vertical direction of the front and rear of the sash from the vicinity of the front and rear ends of the upper opening along the front and rear edges of the window opening. The parts are integrally attached. The sash forms a door window that opens and closes by the vertical movement of the door glass.

When such a vehicle door is assembled, the door glass is inserted into the internal space from the upper opening of the door panel. Then, the door glass is fitted to the front and rear vertical parts of the sash so as to be movable up and down, and the assembling of the elevating mechanism is performed.
By the way, the upper opening that is long in the front and rear of the door panel is usually smaller than the front and rear width of the door glass. The work of rotating in a regular direction in the space is performed.

However, depending on the size and shape of the door glass or the shape of the internal space, the door glass may not be inserted into the upper opening, or even if it can be inserted, it may not rotate in the normal direction in the internal space. is there.
In such a case, as shown in FIG. 11, in the belt line portion A of the outer panel 100, in the vicinity of the side edge of the upper opening 110, a long hole 130 for inserting the door glass 120 is formed by cutting back and forth, The long door 130 is used to insert the door glass 120 having a width larger than the front and rear width of the upper opening 110 toward the lower side of the upper opening 110 as indicated by an arrow D.
Such door glass insertion technology is disclosed in Japanese Patent No. 3170941 (Patent Document 1).

Japanese Patent No. 3170941

  By the way, when a long hole for inserting the door glass is cut and formed in the belt line portion of the outer panel, stress is applied to the peripheral portion of the long hole 130, particularly the deepest portion of the hole, due to vehicle body vibration or an impact load when the door is opened and closed. Concentration is likely to occur, and cracks may occur as indicated by the symbol K in FIG. In order to prevent this, for example, it is conceivable to reinforce the periphery of the long hole 130 as shown in FIG. That is, the thermal welding pad WP is joined to the inner wall surface of the door panel shape changing portion E in the vicinity of the elongated hole 130 and the vertical wall-shaped outer plate portion 150 of the sash 140. The thermal welding pad WP is an epoxy pad, and can be cured at room temperature to enhance the rigidity of the shape change portion E.

However, even if such a heat-welding pad bonding process is performed, a sufficient crack-preventing function cannot be exhibited due to the shape of the elongated hole 130 part and the level of vibration input, and cracks are generated relatively early. It may occur and improvement is desired.
Furthermore, in the vehicle door in which the outer plate portion 150 of the sash is integrally extended and formed above a part of the belt line portion A on the outer panel main body side, the shape changing portion E receives vehicle body vibration, The part is liable to be bent and is liable to cause a problem in the durability of the door, and the door rigidity at the shape changing portion E needs to be sufficiently increased.

  The present invention has been made paying attention to each of the above-mentioned problems, and enhances the rigidity of the shape change portion between the door panel main body side and the outer plate portion of the door sash extending above the door panel main body, thereby improving the durability of the door. It is another object of the present invention to provide a vehicle door that can prevent the occurrence of cracks in the peripheral portion of the long hole when the long hole for inserting the door glass is formed in the shape change portion of the door panel.

  In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that the outer panel and the inner panel are joined to each other at the peripheral edge, and have a window opening, and the lower edge of the window opening is formed by the edge of both panels. A door panel having a long upper opening at the front and rear and an internal space below the door; a door sash that is provided at least at the front and rear edges of the window opening and that guides the door glass vertically; and for the window of the door sash A vehicle-side extension piece fixed to a back wall opposite to the opening side and a connection bracket formed by bending a vehicle-side extension piece connected to the outer panel side are provided.

  According to a second aspect of the present invention, in the vehicle door according to the first aspect, an outer ring force welded along an inner side of a lower edge portion of the window opening of the outer panel is provided. The outer plate is fixed to the inner side of the outer ring force and also superposed on a reinforcing plate member provided on the outer side of the outer ring force.

  According to a third aspect of the present invention, in the vehicle door according to the first or second aspect, a work slot for inserting the door glass into the internal space at least one of front and rear end edges of the upper opening of the outer panel. Is cut in the front-rear direction.

  According to the vehicle door of the first aspect, the door sash is fixed to the vehicle interior extension piece of the connection bracket, and the vehicle exterior vertical piece of the connection bracket is connected to the outer panel side. As described above, since the coupling rigidity between the door sash and the outer panel, that is, the door panel is sufficiently strengthened, the impact vibration at the time of opening and closing the door is easily distributed to the door panel. For this reason, the rigidity in the shape change part of the outer-plate part of the door sash extended on the door panel main body side and the upper direction can be strengthened, and the durability of a door can be ensured.

  According to the vehicle door of the second aspect, since the connecting bracket and the reinforcing member are overlapped and fixed with the outer ring force along the inner side of the lower edge portion of the window opening of the outer panel, The impact vibration at the time of opening and closing the door is surely transmitted, and the necessity of increasing the strength of the entire outer ring force by using the reinforcing member is reduced.

  According to the vehicle door of the third aspect, since the impact load at the time of opening and closing the door is distributed to the inner panel and the outer panel side through the outer ring force, the work long holes are formed in the main part of the belt line portion of the outer panel. Even if it is formed, the stress concentration on the edge of the working long hole can be alleviated, cracks can be reliably suppressed, and the durability of the door is improved.

1 and 5 show a vehicle door according to the present invention.
This vehicle door (hereinafter simply referred to as a door) D is arranged to open and close an entrance / exit of a vehicle (not shown). As shown in FIG. 5, the door D is provided with sash portions 2 at the front and rear edge portions and the upper edge portion of the window opening DW of the outer panel 1, and the inner panel 4 Are integrally joined.
As shown in FIG. 3, the outer panel 1 and the inner panel 4 are integrally coupled to each other at their peripheral portions by caulking or the like. As a result, the door panel portions 101 and 401 having the internal space 5 and the panel sash portions 102 and 402 provided with the sash portion 2 forming the frame portion of the window opening DW are formed. Moreover, the upper edge portions f1 and f2 (window opening lower edge portions) of the outer and inner door panel portions 101 and 401 are formed in a long flange shape in the front and rear, and a long upper opening 6 is formed in the front and rear between them. ing.

As shown in FIG. 3, front and rear lower vertical portions 701 and 801 of the sash body are fixed to an inner space 5 between the outer and inner door panel portions 101 and 401 via brackets (not shown). Furthermore, the front and rear upper vertical portions 702 and 802 of the sash portion 2 are welded to each other while being sandwiched between the inner edges of the panel sash portions 102 and 402 on the panel side, and the main portions are caulked as shown in FIG. Are connected together.
Here, as indicated by broken lines in FIG. 5, the upper and lower front vertical portions 702 and 701 of the sash body are formed of a single member, and the upper and lower rear vertical portions 802 and 801 are formed of separate members. As shown in FIG. 3, the lower rear vertical portion 801 is abutted with the lower end of the upper rear vertical portion 802, and both the abutting portions are connected vertically so as not to hinder the raising and lowering operation of the door glass. Fastened with a bracket 9.

Here, a claw receiving portion n is formed at the lower end of the upper rear vertical portion 802, and the claw portion 901 of the connecting bracket 9 integral with the lower rear vertical portion 801 can be inserted and fitted into the nail receiving portion n. Formed as follows. The lower part of the lower rear vertical part 801 is detachably fastened to the inner door panel 401 side via a bracket (not shown).
As described above, the upper ends of the upper and lower vertical portions 702 and 802 are integrally connected to each other by the upper sash 10.

As shown in FIG. 5, the upper and lower front vertical portions 701 and 702, the upper sash 10, and the upper and lower rear vertical portions 801 and 802, which are sash bodies, are integrally connected to each other to form a substantially rectangular frame shape. Yes. Accordingly, as shown in FIG. 5, the door glass 3 is held so as to be slidable up and down between the fully closed position P1 and the fully opened position P2.
As shown in FIGS. 3 and 5, the outer panel 1 includes a lower outer door panel portion 101 and a panel sash portion 102 that continuously extends upward from the front and rear ends thereof and forms a frame portion of the window opening DW.

  Here, the front and rear vertical portions 102f and 102r (outer plate portions of the door sash) of the panel sash portion 102 are largely deformed with the belt line portion A of the outer door panel portion 101 (door panel main body side), and the shape changing portion. E is made. In addition, this shape change part E is located in the front-and-back site | part of the belt line B of the door panel part 101 (door panel main body side).

In this shape changing portion E, a long slot 12 is formed on the rear side (right side in FIG. 5) on the window opening DW side, that is, the inner edge side of the rear vertical portion 102r of the panel sash portion 102.
As shown in FIGS. 2 and 5, the length L1 in the cutting direction of the long hole 12 is a length (L1 + L2) added to the front-rear width L2 of the window opening DW, which is slightly larger than the front-rear width L3 of the door glass 3. Thus, the hole width B1 is set. Thereby, the door glass 3 can be inserted into the internal space 5 through the upper opening 6 and the long hole 12.

  By the way, as shown in FIG. 1 thru | or FIG. 4, on the back side of the belt line A including the upper edge part f1 of the door panel part 101 (door panel main body side) of the outer, the outer outer force 13 long in the front-back direction is provided.

As shown in FIG. 6, the outer ring force 13 includes a central straight main portion 130 and coupling end portions 13 f and 13 r at the front and rear ends thereof. The coupling end portions 13 f and 13 r are door panel portions 401 of the inner panel 4. It welds to the bending wall part (not shown) formed in the front-and-rear end.
Further, as shown in FIGS. 3 and 4, the longitudinal section of the main portion 130 of the outer ring force 13 includes an upper flange 131 that overlaps the upper edge f1 of the door panel 101 (door panel main body side) and is welded to the upper flange 131. A vertical main portion 132 extending downward, an upward wall portion 133 bent from the lower side and extending to the vehicle exterior side, and a lower flange 134 bent and extended downward from the front end thereof.

Thus, the outer ring force 13 is welded to the upper edge f1 of the door panel portion 101, and the front and rear connecting ends 13f and 13r are welded to the front and rear ends of the door panel portion 401, so that sufficient rigidity is maintained. In the state, it is attached in the vicinity of the upper opening 6.
Here, the upper and lower front vertical portions 701 and 702 of the sash body intersect and overlap each other on the vehicle inner side of the coupling end portion 13f in front of the outer ring force 13 (see the broken line portion in FIG. 5) and are welded to each other.

On the other hand, a rear longitudinal portion 802 on the sash body and a connecting bracket 9 are projected from below on the vehicle interior facing portion in the rear portion of the main portion 130 near the coupling end portion 13f behind the outer ring force 13. The rear vertical part 801 that is joined together is arranged oppositely.
Here, as shown in FIG. 3, the rear wall surface w1 of the rear vertical portion 802 of the sash body faces rearward (front side of the paper), and the vehicle inner side surface w2 of the vertical main portion 132 of the outer ring force 13 is the vehicle inner side (reference numeral (IN side). The two surfaces are integrally connected by a connecting bracket 15.

That is, as shown in FIG. 3, the connection bracket 15 is formed as a rigid member having a thick wall in the vertical direction, with a curved middle portion and a substantially L-shaped cross section.
The upper portion of the connecting bracket 15 includes an interior extension piece 151 that is superposed on the rear wall surface w1 of the rear vertical portion 802 and is spot-welded SW at two locations, and an upper bent portion 152 that is bent rearward from one end thereof. The lower part of the connecting bracket 15 is superposed on the vehicle inner side surface w2 of the outer ring force 13, and the vehicle outer vertical piece 153 integrally joined by a rivet RJ described later, and the lower bend bent from the one end to the vehicle inner side (symbol IN side). Part 154. As shown in FIGS. 9 and 10, two through holes h <b> 1 and h <b> 1 are formed in the longitudinal longitudinal piece 153, and a rivet RJ described later is inserted therethrough.

As shown in FIGS. 4 and 8, two through holes h <b> 1, h <b> 1 of the vehicle-side vertical piece 153 are formed in a portion facing the connecting bracket 15 of the vertical main portion (vertical wall) 132 of the outer ring force 13. Two opposing through holes h2 and h2 are formed.
Further, as shown in FIGS. 3 and 4, the outer side (vertical wall) 132 of the outer ring force 13 is reinforced at the position facing the two through holes h2 and h2 on the vehicle outer side (symbol OUT side). The plate member 16 is disposed so as to overlap. The reinforcing plate member 16 has a hook-shaped cross section in which a vertical piece 161 and a bent piece 162 are integrally formed. Here, the vertical piece 161 overlaps the vertical main part (vertical wall) 132 of the outer ring force 13, and the bent piece 162 that extends and bends from the lower edge to the vehicle outer side (reference sign OUT side) is the upward wall part. It overlaps with the upper surface of 133.

The bent piece 162 is spot welded SW to the upward wall 133 at two locations in advance, and the vertical piece 161 is spot welded SW to the longitudinal main portion 132 at one location and integrated. In the vertical piece portion 161, two through holes h3 and h3 are formed in a portion of the vertical main portion 132 facing the two through holes h2 and h2.
For this reason, the vertical main portion 132 has the vertical piece 161 of the reinforcing plate member 16 on the vehicle outer side, and the vehicle outer vertical piece 153 of the connection bracket 15 on the vehicle inner side, respectively, in a three-layered state (FIG. 8). Reference). In addition, rivets RJ are respectively inserted into rows of through holes h1, h2, and h2 communicating with each other, and the rivets are fastened. As a result, the reinforcing plate member 16, the outer ring force 13, and the connecting bracket 15 are joined together by the rivet RJ at two locations in a state where the three pieces are stacked.

In this case, the reinforcing plate member 16, the outer ring force 13, and the lower part of the connecting bracket 15 are firmly integrated, and the upper part of the connecting bracket 15 is fixed to the back wall surface w1 of the rear vertical part 802 of the sash body. The rear vertical portion 802 and the outer ring force 13 are securely coupled together while intersecting.
In addition, as shown in FIG. 7, the rear vertical portion 802 of the sash body has an inner connection bracket 17 as a vehicle-side extension piece that is L-shaped in plan view at a position above the connection bracket 15, separately from the connection bracket 15. The outer piece 171 is spot welded SW. As shown in FIGS. 3 and 7, the inner piece 172 of the inner connecting bracket (vehicle inner extension piece) 17 is spot welded SW to the panel sash portion 402r that forms the frame portion of the window opening DW on the inner panel 4 side. The Thus, the coupling rigidity between the panel sash portion 402 and the rear vertical portion 802 of the sash body is ensured.

Such a vehicle door shown in FIG. 1 and FIG.
Here, the upper part of the connection bracket 15 is spot-welded SW to the rear vertical portion 802 of the sash body. Next, the vehicle outer side piece 171 of the inner connection bracket 17 is spot-welded SW. Further, the outer ring force 13 in which the reinforcing plate member 16 is integrated with the spot welding SW is overlapped with the connection bracket 15. Then, the reinforcing plate member 16, the outer ring force 13, and the connecting bracket 15 are joined together by the rivet RJ at two locations in a state where the three sheets are overlapped. Further, the coupling end portion 13f on the front end side of the outer ring force 13 is welded to the front vertical portion 702 of the sash body, and the sash side sub-assembly (not shown) is formed.

In addition, the sub-assembled sash main body side assembled in advance in the frame mold is provided at a plurality of locations on the door panel portion 401 on the inner panel 4 side and the panel sash portion 402 constituting the frame portion of the window opening DW. Welded.
Further, the front end sides 13f and 13r of the outer ring force 13 and the bent wall portion (not shown) of the door panel portion 401 are welded, so that the coupling rigidity between the sash body side of the subassembly and the inner panel 4 side is enhanced.

  Next, the outer panel side door panel portion 101 and the panel sash portion 102 forming the frame portion of the window opening DW are overlapped on the sash body and the inner panel 4 side which are subassemblies, and the inner panel 4 side and the outer panel side are overlapped. The peripheral edges facing each other are integrated by caulking or welding. At this time, the upper flange 131 of the outer ring force 13 is overlapped with the upper edge portion f1 of the door panel portion 101 and welded to each other.

  In this way, the assembly of the door D is completed, and thereafter the coating process is performed, and then the door glass 3 is inserted into the internal space 5. Prior to this, the claw portion 901 of the connecting bracket 9 integrated with the lower rear vertical portion 801 is removed from the lower nail receiving portion n of the rear vertical portion 802 on the sash body, and the lower rear vertical portion 802 is Removal processing is performed from the internal space 5.

  In addition, the door having the front and rear width L3 slightly smaller than the opening (L1 + L2) obtained by adding the length L1 of the long hole 12 and the front and rear width L2 of the upper opening 6 of the window opening DW. Glass 3 is inserted and inserted. Then, the door glass 3 is fitted to the sash body side, the claw portion 901 of the connection bracket 9 is fitted to the claw receiving portion n of the upper rear vertical portion 802, and the lower rear vertical portion 801 is interposed via a bracket (not shown). And fastened to the door panel 401 side of the inner. After that, the long hole 12 is closed with an unillustrated elastic seal member. Following this, other door equipment is installed and the assembly of the vehicle door is completed.

In a vehicle equipped with such a vehicle door, vibration is applied to the door D when the vehicle is traveling or when the door is opened and closed.
However, the vertical portion 802 of the door sash is fixed to the vehicle interior extension piece 151 of the connection bracket 15, and the vehicle exterior vertical piece 153 of the connection bracket is overlapped with the (inner vehicle facing surface) W 2 of the outer ring force 13. The reinforcing plate member 16 is overlapped on the outer side surface of the outer ring force, and the three sheets are stacked and fixed by the rivets RJ.

  As described above, since the joint rigidity of the door sash vertical portion 802 and the front and rear outer force 13 is sufficiently strengthened, the shape changing portion E which is a connecting portion between the door panel portion 101 (door panel main body side) and the panel sash portion 102. The bending displacement is sufficiently reduced, early deterioration due to repeated vibration of the shape change portion E can be prevented, and the durability of the door can be ensured.

  Furthermore, since the impact load at the time of opening and closing the door is distributed to the inner panel door panel portion 401 and the outer panel door panel portion 101 side through the outer ring force 13, long holes (for work) are formed in the belt line portion A of the outer panel. Even if (long hole) 12 is formed, stress concentration on the edge of the long hole 12 can be alleviated, and crack K (see FIG. 11) can be reliably suppressed. improves.

  Further, the reinforcing plate member 16 has a hook-shaped cross section in which the vertical piece portion 161 and the bent piece portion 162 are integrally formed, and these are overlapped with the vertical wall 132 and the upward wall portion 133 of the outer ring force 13. Yes. In addition, three vertical pieces 161 are fixed to the vehicle-side vertical pieces 153 of the connecting bracket 15 in a stacked manner, and the bent pieces 162 are fixed to the upward wall portion 132 by spot welding SW.

  For this reason, the coupling rigidity of the reinforcing plate member 16 with respect to the outer ring force 13 is further strengthened, and accordingly, the impact vibration at the time of opening and closing the door via the outer ring force 13 causes the door panel portion 401 of the inner panel and the door panel portion 101 of the outer panel. Easily distributed by the side. As a result, the rigidity at the shape change portion E of the panel sash portion (outer plate portion) 102 of the door sash 102 (door panel main body side) and the door sash extending above the door panel portion 101 can be strengthened, and early deterioration due to repeated vibration can be prevented. The durability of can be ensured. In addition, since the connecting bracket 15 and the reinforcing plate member 16 are superposed and fixed with the outer ring force 13 interposed therebetween, the shock vibration at the time of opening and closing the door is reliably transmitted to the outer ring force 13, and the reinforcing plate member 16 is By using it, the need to increase the strength of the entire outer ring force 13 is reduced, and the cost can be reduced.

It is a principal part notched perspective view of the door for vehicles as one Embodiment of this invention. It is a principal part notched side view of the vehicle door of FIG. It is a principal part notch rear view of the vehicle door of FIG. It is a principal part notch perspective view in the decomposition | disassembly state of the vehicle door of FIG. It is a schematic side view of the vehicle door of FIG. It is a perspective view of the outer ring force used with the vehicle door of FIG. FIG. 6 is a cross-sectional view taken along line C1-C1 of FIG. FIG. 6 is a sectional view taken along line C2-C2 of FIG. It is an expansion perspective view of the combined state of the upper rear vertical part used with the door for vehicles of Drawing 1, and the connection bracket superposed on the back wall surface. It is a perspective view of the combined state of the upper rear vertical part used with the door for vehicles of Drawing 1, and the connection bracket superposed on the back wall surface. It is an expansion notch perspective view of the elongate hole formation part periphery in the conventional vehicle door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer panel 2 Sash part 3 Outer plate part 4 Inner panel 5 Internal space 6 Upper opening 12 Long hole (working long hole)
13 Outerrin Force 15 Connection Bracket (Inner extension piece)
151 Car interior extension piece 153 Car exterior longitudinal piece 16 Reinforcement plate member 17 Inner connection bracket (car interior extension piece)
101, 401 Door panel portion 102, 402 Panel sash portion 161 Vertical piece portion 162 Bending piece portion 702, 802 Front and rear vertical portions of the sash body f1, f2 Upper edge portion w1 Rear wall surface w2 Inside surface D Door DW Window opening P1 Fully closed position P2 Fully open position RJ Rivet X Front-rear direction Y Vehicle width direction

Claims (3)

The outer panel and the inner panel are connected to each other at the periphery, and have a window opening and a front panel formed at the lower edge of the window opening at the edge of both panels and a long front opening and an inner space below it. When,
A door sash that is provided at least at the front and rear edges of the window opening and guides the door glass in the vertical direction;
A connecting bracket formed by bending a vehicle inner side extension piece fixed to a back wall opposite to the window opening side of the door sash and a vehicle outer side vertical piece connected to the outer panel side;
A vehicle door characterized by comprising: The vehicle door according to claim 1,
An outer ring force welded along the inner side of the lower edge of the window opening of the outer panel;
The vehicle exterior vertical piece is fixed to the vehicle inner side of the outer ring force, and also overlaps with a reinforcing plate member provided on the vehicle outer side with the outer ring force interposed therebetween. The vehicle door according to claim 1 or 2,
A vehicular door characterized in that a work slot for inserting the door glass into the inner space is cut in the front-rear direction at at least one of front and rear end edges of the upper opening of the outer panel.

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