JP2006044635A - Door structure for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a hole cover from suppressing impact absorption performance by an impact force transmission member. <P>SOLUTION: The hole cover 20 for receiving a projection part 11a of the upper impact absorption member 11 comprises upper and lower cover members 22, 23 of the shape divided to upper and lower sides. The upper cover member 22 is constituted by a film-like plastic molded product. The lower cover member 23 is constituted by a plastic molded product having relatively thick thickness similarly to a conventional one. The lower cover member 23 is overlapped to a mounting position of a door latch mechanism part 10a and a latch release cable 32a and a harness 32b for auto closure, i.e., wiring parts are extended to the door latch mechanism part 10a through an insertion hole 31a of the lower door cover 23. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door structure of an automobile, and more particularly to a door structure in which an impact absorbing member typically made of a foam is disposed inside a door.

  Automobile side doors have built-in equipment such as a mechanism for raising and lowering the window glass, and a mechanism for opening and closing and locking the door. In addition, as a means to protect the occupant from side collisions It is known that an impact absorbing member (typically a foam) is disposed at a portion facing the body side of an occupant seated on a seat.

  With respect to this shock absorbing member, Patent Document 1 interposes an impact absorbing member between the door inner panel and the door trim, and provides a convex portion that penetrates to the working hole of the door inner panel. To provide an additional thickness to the shock absorbing member.

  Patent Document 1 discloses a cross-sectional shape of a hole cover for closing a work hole with a relatively hard hole cover and receiving a convex portion of an impact absorbing member in order to prevent rainwater and the like from entering the vehicle interior. Is made into a convex shape protruding outward in the vehicle width direction.

According to the side door equipped with the shock absorbing member, even if the side door is deformed inward in the vehicle width direction due to a side collision, the impact force accompanying the deformation can be absorbed by the shock absorbing member. Damage can be reduced. Moreover, since the sectional shape of the hole cover is formed in a convex shape protruding outward in the vehicle width direction, for example, even a relatively thin door can give an additional thickness to the shock absorbing member. There is an advantage that a desired impact absorbing effect can be secured.
JP-A-11-342815

  However, forming the cross-sectional shape of the hole cover into a convex shape projecting outward in the vehicle width direction results in a state in which the peripheral wall extending over the entire circumference of the hole cover extends in the vehicle width direction. There is a possibility that the surrounding wall becomes a member for transmitting the impact force.

  Accordingly, an object of the present invention is to provide a shock absorbing performance by a shock transmission member provided with an impact force transmission member on the premise of a door structure in which a shock absorbing member having a shape that penetrates to the hole of the door inner panel is covered with the hole cover. An object of the present invention is to provide a door structure for an automobile that can prevent obstruction.

  A further object of the present invention is to provide a shock absorbing member shaped so as to penetrate into the hole of the door inner panel and to cover the hole with a hole cover. An object of the present invention is to provide an automobile door structure that can reduce the possibility of becoming a vehicle.

  A further object of the present invention is to route the hole cover without deteriorating the state that the hole cover supports the door inner panel while reducing the possibility that the peripheral wall of the hole cap described above becomes an impact force transmission member. An object of the present invention is to provide an automobile door structure through which parts can be inserted.

  As a phenomenon of the side door entering the vehicle interior due to a side collision, it is known that the intrusion amount is the largest in the vicinity of the waistline, and the intrusion amount decreases as it goes downward. The present invention has been devised by paying attention to this point.

The above technical problem is, according to one aspect of the present invention,
An opening formed in a portion where the body side of the occupant seated on the seat faces the door inner panel of the side door;
A hole cover for closing the opening, the hole cover having a recess formed by a peripheral wall extending outward in the vehicle width direction and opened to the vehicle compartment side;
A door trim attached to the vehicle compartment side of the door inner panel;
An impact absorbing member provided between the door trim and the door inner panel, and having a convex portion that penetrates to the opening of the door inner panel and is received by the concave portion of the hole cover,
An automobile door characterized in that at least an upper peripheral wall of the peripheral wall of the hole cover has a fragile structure that can be deformed when a predetermined load or more is applied from the outside in the vehicle width direction. This is achieved by providing a structure.

  According to the present invention, the upper peripheral wall of the hole cover that is relatively close to the waistline has a fragile structure that can be deformed relatively easily compared to the lower peripheral wall. When the side door is deformed due to a collision, the upper part of the hole cover corresponding to the part where the amount of intrusion into the vehicle interior is relatively large tends to be easily deformed. Can be prevented from decreasing.

The above technical problem is, according to the second aspect of the present invention,
An opening formed in a portion where the body side of the occupant seated on the seat faces the door inner panel of the side door;
A hole cover for closing the opening, the hole cover having a recess formed by a peripheral wall extending outward in the vehicle width direction and opened to the vehicle compartment side;
A door trim attached to the vehicle compartment side of the door inner panel;
An impact absorbing member provided between the door trim and the door inner panel, and having a convex portion that penetrates to the opening of the door inner panel and is received by the concave portion of the hole cover,
The hole cover closes the opening of the door inner panel via a seal member, and is configured by an upper cover member and a lower cover member that are divided into upper and lower portions, and the upper cover member is the lower cover member. Composed of more rigid and brittle materials
Achieved by providing a door structure for an automobile, wherein the lower cover member is provided with a mounting portion for a routing member that is routed from the outside to the inside of the door inner panel. Is done.

  That is, according to the invention of the second aspect, the hole cover is divided into an upper part and a lower part, and the upper cover member is made of a material that is rigidly brittle. When this happens, the upper part of the hole cover, which is a part where the amount of intrusion into the vehicle interior is relatively large, tends to be easily deformed, thereby preventing the shock absorbing performance from being lowered due to the influence of the hole cover as in the past. be able to.

  In a preferred embodiment of the present invention, the opening of the door inner panel is a work hole for assembling a door latch mechanism component provided at the rear end of the side door. The working hole is provided at a relatively high portion of the side door, that is, a portion close to the waistline, and a latch release cable extending from the door latch mechanism component is routed to the vehicle interior side through the working hole. Therefore, a hole is formed in the fragile upper cover member, and the latch release cable is routed through this hole to prevent the hole cover from being deformed due to the tensile load of the latch cable and hindering the sealing performance of the hole cover. can do.

  According to the invention of this second aspect, since the surrounding wall extending in the vehicle width direction of the hole cover is made of a fragile structure, when a large load is applied due to a side collision, the surrounding wall is deformed. It can be avoided that the peripheral wall becomes an impact force transmission member.

  It is preferable that the weak structure of the peripheral wall is applied only at least to the upper part of the hole cover, and the lower peripheral wall is a structure having rigidity as in the conventional case.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a longitudinal sectional view of a side door with a sash that opens rearward from a front hinge. The illustrated side door 1 is constructed by joining a door outer panel 2 and a door inner panel 3 to each other as in the prior art. A door trim 4 is attached to the door inner panel 3 on the vehicle compartment side. The

  The window glass 5 of the side door 1 can be lifted and lowered through a gap 6 extending along the waist line between the door outer panel 2 and the door inner panel 3 as in the prior art. Water is stopped by internal and external weather strips 7 and 8 which are in sliding contact with the plate surface. Reference numeral 9 in FIG. 1 denotes a lifting mechanism part of the window glass 5, and 10 denotes a door opening / closing and locking mechanism part.

  Between the door inner panel 3 and the door trim 4, shock absorbing members 11 and 12 that are divided into upper and lower portions are interposed at portions facing the body side of the occupant seated on the seat. Both the impact absorbing members 11 and 12 are formed of a urethane foam molded product.

  FIG. 2 is a front view of the door inner panel 3 with sash as viewed from the passenger compartment side. The door inner panel 3 is provided with a plurality of work holes 13 to 15. Among these, the working hole 13 provided in the upper part of the rear end part of the door inner panel 3 is used for the operation | work which attaches the mechanism 10 for opening and closing and locking a door, such as a door latch. The upper rear working hole 13 is provided with grommet holes 17, 17 at the opening edge. As can be understood from FIG. 1, a hole for sealing the upper rear working hole 13 using the grommet hole 17. The cover 20 is fixed. The lower rear working hole 15 is sealed with a thermoplastic sheet 16.

  As can be understood from FIG. 1, the hole cover 20 is a vehicle that connects a main body 20 a protruding outward in the vehicle width direction, a peripheral flange 20 b provided on the periphery thereof, and the main body 20 a and the entire peripheral flange 20 b. And the hole cover 20 is formed in a shape having a recess 21 opened to the passenger compartment side. The outer shape of the peripheral wall 20c is the contour of the upper rear working hole 13. Have substantially the same contour.

  The convex portion 11 a of the upper impact absorbing member 11 is received in the recess 21 of the hole cover 20. That is, the upper impact absorbing member 11 disposed at the upper portion of the rear end portion of the side door 1 includes a convex portion 11a that penetrates to the upper rear working hole 13, and is positioned near the waist line by the convex portion 11a. An additional thickness is given to the upper shock absorbing member 11 to increase the shock absorbing capacity of a portion where the amount of intrusion into the vehicle interior of the side door 1 due to the side collision is relatively large.

  FIG. 3 is a front view of the hole cover 20 as viewed from the passenger compartment side. The hole cover 20 is made up of upper and lower cover members 22 and 23 having a shape obtained by dividing the hole cover vertically by a horizontal line. The cover members 22 and 23 are formed on the lower edge portion and the lower side of the upper cover member 22. The cover member 23 is integrated by being joined with a hot melt adhesive in a state where the upper edge portion of the cover member 23 is overlapped with each other.

  As can be understood from FIG. 4 taken along the line IV-IV in FIG. 3, the upper cover member 22 extends along the main body 22 a that receives the convex portion 11 a of the upper shock absorbing member 11 and the opening edge of the door inner panel 3. And a peripheral wall 22c extending in the vehicle width direction connecting the main body 22a and the flange 22b. Similarly, as can be understood from FIG. 5 taken along the line VV in FIG. 3, the lower cover member 23 includes a main body 23 a that receives the convex portion 11 a of the upper impact absorbing member 11, and the door inner panel 3. It has a flange 23b extending along the opening edge, and a peripheral wall 23c extending in the vehicle width direction connecting the main body 23a and the flange 23b. The main bodies 22a and 23a correspond to the main body 20a of the hole cover 20 described above, the flanges 22b and 23b correspond to the peripheral flange 20b of the hole cover 20, and the peripheral walls 22c and 23c correspond to the peripheral wall 20c of the hole cover 20. .

  A butyl rubber adhesive 25 applied along the flange 22b of the upper cover member 22 and a urethane resin sealant 26 attached along the flange 23b of the lower cover member 23 are attached to the peripheral flange 20b of the hole cover 20. Is provided. As a result, the hole cover 20 is bonded and sealed to the door inner panel 3 with the upper cover member 22 by the butyl rubber adhesive 25, and the lower cap member 23 is sealed with the urethane resin sealing material 26.

  As shown in FIG. 3, in the joining portion of the butyl rubber adhesive 25 and the urethane resin sealing material 26, the application region of the butyl rubber adhesive 25 is extended to the upper end portion of the lower cover portion 23. As described above, the sealing portion of the hole cover 20 can be improved by forming a double seal structure with the butyl rubber adhesive 25 and the urethane resin sealant 26 at the joining portion of the butyl rubber adhesive 25 and the urethane resin sealant 26. It is preferable in terms of enhancement.

  As described above, the butyl rubber adhesive 25 is applied to the outer peripheral edge of the flange 22b of the upper cover member 22. In order to increase the surface pressure of the portion where the butyl rubber adhesive 25 is applied, the vehicle width direction is used. It is preferable to continuously provide the protrusion 22d that protrudes outward, that is, toward the door inner panel 3 side, over the entire longitudinal direction of the flange 22b (see FIG. 4).

  The upper cover member 22 is made of a film, that is, a relatively flexible thin plastic molded product. On the other hand, the lower cover member 23 is formed of a hard plastic molded product having a relatively thick wall as in the conventional case.

  Referring to FIG. 3, a pair of mounting holes 27 are formed at the front end portion and the rear end portion of the upper portion of the hard lower cover member 23. The positions of the mounting holes 27 are referred to FIG. It is designed to correspond to the grommet hole 17 described above. The hole cap 20 is fixed to the door inner panel 3 using a grommet (not shown) with the mounting hole 27 aligned with the grommet mounting hole 17 of the door inner panel 3.

  In order to improve the sealing performance of the lower cover member 23, as shown in FIG. 5, the peripheral wall 23c of the lower cover member 23 is provided with a protrusion, that is, a claw 28 at a portion adjacent to the flange 23b. A peripheral groove 29 for receiving the opening edge of the door inner panel 3 may be formed with the flange 23b. When the hole cap 20 is installed on the door inner panel 3, the urethane resin sealing material 26 is in a compressed state by fitting the opening edge of the door inner panel 3 into the peripheral groove 29 of the lower cover member 23. It can press-contact with the door inner panel 3, and can improve the sealing performance by the urethane resin sealing material 26 by this.

  When the hole cover 20 is attached to the upper rear working hole 13 of the door inner panel 3, the lower corner portion thereof overlaps the position of the door latch component 10a. In the rear part of the hole cover 20, the door latch housing part 30 raised to the vehicle compartment side to receive a part of the door latch part 10a and the cables and harnesses 32a and 32b connected to the door latch mechanism part 10a are converged. A cable / harness insertion portion 31 that is raised toward the passenger compartment is provided for accommodation. Specifically, the latch release cable 32a and the auto-closure harness 32b as the door routing parts are routed through the cable / harness insertion portion 31.

  FIG. 6 is a view corresponding to FIG. 3, showing a state in which the latch release cable 32 a and the auto-closure harness 32 b are routed through the cable / harness insertion portion 31. Referring to FIG. 6, as can be seen from FIG. 6, the latch release cable 32a passes through a hole formed in the peripheral wall 22c of the upper cover member 22 (not shown in the drawing for reasons of drawing). Take out to the side.

  FIG. 7 is a cross-sectional view of the cable / harness insertion portion 31 taken along the line VII-VII in FIG. 6, and is a view for explaining a portion for taking out the latch release cable 32a to the vehicle compartment side. Referring to FIG. 7, the outer periphery of the latch release cable 32 a is surrounded by a cushioning material 33 such as a sponge, and the latch release cable 32 a is inserted into the hole 31 a of the cable / harness insertion portion 31 through the cushioning material 33. It is inserted. Thereby, it is possible to prevent the latch release cable 32a from coming into direct contact with the hole 31a of the cable / harness insertion part 31 and generating abnormal noise. In addition, the part which attached | subjected the reference code | symbol 11b in FIG. 7 shows the recessed part formed in the upper side impact-absorbing member 11 in order to let the latch release cable 32a pass.

  The auto-closure harness 32b has a connector 32c. The connector 32c is connected to the connector 34a of the external harness 34. The connector 34a of the external harness 34 is formed integrally with the lower cover member 23. And it is being fixed to the attaching part 35 (FIG. 3) extended from the flange 23b, and this attaching part 35 comprises the support part for supporting a routing member.

  8 is a cross-sectional view taken along line VIII-VIII in FIG. 3, and FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. As can be seen from FIGS. 8 and 9, the attachment portion 35 has a hole 35 a, and a hook 36 extending from the connector 34 a is locked in the hole 35 a, whereby the connector 34 a of the external harness 34 is attached to the lower cover member 23. Fixed.

  In the door structure of the first embodiment, the upper portion of the hole cover 20 arranged in the upper portion of the rear portion of the side door 1, that is, the portion close to the waistline is relatively low in rigidity compared to the lower portion, that is, side collision. Therefore, the impact due to the side collision can be absorbed by the impact absorbing member 12 without being substantially affected by the rigidity of the hole cover 20. In particular, in the embodiment, since the upper cover member 22 is composed of a flexible upper cover member 22 and a relatively hard lower cover member 23, the hole cover 20 having different rigidity between the upper part and the lower part can be easily produced. Can do.

  Further, as in the first embodiment, the lower cover member 23 having relatively high rigidity constitutes the lower portion of the hole cover 20, and the connector 34 a of the external harness 34 fixed to the lower cover member 23 is automatically connected to the lower cover member 23. Since the harness 32b for closure is connected, the harness related to the door lock mechanism component 10 can be reliably supported.

  Particularly, since the urethane resin sealant 26 is pressed against the door inner panel 3 by engaging the opening edge of the door inner panel 3 with the peripheral groove 29 of the lower cover member 23, the lower cover member 23 is A high degree of sealing performance can be ensured while physically keeping away from the door inner panel 3.

  Further, as in the first embodiment, the latch release cable 32a is routed through a hole formed in the relatively flexible upper cover member 22, so that the tensile load during operation of the latch release cable 32a is the upper cover. It can be absorbed by the flexibility of the member 22. Further, since the peripheral flange 22b of the flexible upper cover member 22 is sealed by an adhesive having both adhesiveness and sealing properties such as the butyl rubber adhesive 25, the tensile load when the latch release cable 32a is operated. Even if a part of the upper cover member 22 is deformed by this, the butyl rubber adhesive 25 can prevent the upper cover member 22 from peeling from the door inner panel 3.

  10 and 11 show a second embodiment of the present invention. FIG. 10 corresponds to FIG. 3 described above, and FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG. It is. In FIG. 10 and FIG. 11, the same reference numerals are given to the same elements as those in the first embodiment described above. In the first embodiment described above, the hole cover 20 is divided into upper and lower parts. However, the hole cover 20 is formed of a single resin molded product, and the peripheral wall 20c of the upper part or the entire region is formed. For example, the wall extends in the vehicle width direction by configuring it with a fragile structure that can be easily buckled or broken when a predetermined load or more is applied from the outside in the vehicle width direction, such as reducing the wall thickness. You may make it prevent the wall 20c becoming a collision force transmission member of a side collision.

  Specifically, in the second embodiment, the hole cover 20 made of a single resin molded part has a thickness substantially the same as that of the lower cover member 23 of the first embodiment as a whole, Alternatively, the upper part is formed to be slightly thinner than the lower part, and a plurality of notch grooves 40 are formed on the peripheral wall located at the upper part of the peripheral wall 20c of the hole cover 20 as shown in FIG. The plurality of cutout grooves 40 are formed so that at least the upper part of the hole cover 20 has a fragile structure. In addition, when making the hole cover 20 with a single resin molded product in this way, it is preferable to dispose the urethane resin sealing material 26 around the entire circumference as a sealing material.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and can include, for example, the following modifications. That is, in the above embodiment, the hole cover 20 is installed in the working hole 13 of the door inner panel 3 and the impact absorbing member 11 having the convex portion 11a is provided in the hole cover 20 portion. The hole cover 20 may be applied to the hole formed for the purpose of disposing the absorbing member 11.

FIG. 3 is a longitudinal sectional view of the side door, and is a sectional view taken along the line II in FIG. 2. It is the front view which looked at the door inner panel of the side door from the compartment side. It is the front view which looked at the hole cover from the vehicle compartment side. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is sectional drawing along the VV line of FIG. It is a figure corresponding to FIG. 3 for demonstrating the state which wired the rack release cable and auto-closure harness which are door routing parts. It is sectional drawing along the VII-VII line of FIG. It is sectional drawing along VIII-VIII of FIG. It is sectional drawing along IX-IX of FIG. It is the front view which looked at the integrally molded hall cover of 2nd Example from the vehicle interior side. It is sectional drawing along the XI-XI line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side door 3 Door inner panel 4 Door trim 10a Door latch mechanism component 11 Impact absorbing member 11a Convex part of impact absorbing member 13 Working hole for assembling door lock and latch mechanism parts 20 Hole cover 20a Convex-shaped main body 20b Hole cover Peripheral flange of cover 20c Peripheral wall of hole cover 21 Recess of hole cover 22 Upper cover member 23 Lower cover member 25 Butyl rubber adhesive 26 Urethane resin sealant 31 Cable / harness insertion portion 31a Cable / harness insertion portion hole 32a Latch release cable 32b Auto closure harness 35 Connector mounting part

Claims (5)

An opening formed in a portion where the body side of the occupant seated on the seat faces the door inner panel of the side door;
A hole cover for closing the opening, the hole cover having a recess formed by a peripheral wall extending outward in the vehicle width direction and opened to the vehicle compartment side;
A door trim attached to the vehicle compartment side of the door inner panel;
An impact absorbing member provided between the door trim and the door inner panel, and having a convex portion that penetrates to the opening of the door inner panel and is received by the concave portion of the hole cover,
An automobile door characterized in that at least an upper peripheral wall of the peripheral wall of the hole cover has a fragile structure that can be deformed when a predetermined load or more is applied from the outside in the vehicle width direction. Construction. An opening formed in a portion where the body side of the occupant seated on the seat faces the door inner panel of the side door;
A hole cover for closing the opening, the hole cover having a recess formed by a peripheral wall extending outward in the vehicle width direction and opened to the vehicle compartment side;
A door trim attached to the vehicle compartment side of the door inner panel;
An impact absorbing member provided between the door trim and the door inner panel, and having a convex portion that penetrates to the opening of the door inner panel and is received by the concave portion of the hole cover,
The hole cover closes the opening of the door inner panel via a seal member, and is configured by an upper cover member and a lower cover member that are divided into upper and lower portions, and the upper cover member is the lower cover member. Composed of more rigid and brittle materials
An automobile door structure, wherein the lower member is provided with an insertion hole for a routing member routed from the outside to the inside of the door inner panel. The opening of the door inner panel is a work hole for assembling a door latch provided at the rear end of the side door,
The automobile door structure according to claim 2, wherein the routing member is a cable connected to the door latch. An opening formed in a portion where the body side of the occupant seated on the seat faces the door inner panel of the side door;
A hole cover for closing the opening, the hole cover having a recess formed by a peripheral wall extending outward in the vehicle width direction and opened to the vehicle compartment side;
A door trim attached to the vehicle compartment side of the door inner panel;
An impact absorbing member provided between the door trim and the door inner panel, and having a convex portion that penetrates to the opening of the door inner panel and is received by the concave portion of the hole cover,
The hole cover closes the opening of the door inner panel through a seal member, and is composed of an upper cover member and a lower cover member that are divided into upper and lower parts, and the upper cover member is the lower cover member Composed of more rigid and brittle materials
The lower cover member is provided with an attachment portion for supporting a routing member extending across the outer side and the inner side of the side door. 5. The peripheral wall included in the upper cover member among the peripheral walls of the hole cover is formed in a weak body structure that can be deformed when a predetermined load or more is applied from the outside in the vehicle width direction. The automobile door structure described in 1.

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