JP2006001398A - Automotive door structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automotive door structure, in which component parts can be more easily laid out, and in which high impact absorbing performance is achieved. <P>SOLUTION: This device is provided with an impact absorbing member 8 provided on the indoor side of a glass rail 6 along a sliding range 13 for door glass to cover both sides of the glass rail 6, and an impact absorbing member 7 on the outdoor side of the glass rail 6 along the sliding range 13 to cover both sides of the glass rail 6. An outside housing part 7b is formed in the form of a groove in such size as to be capable of housing the glass rail 6 in an indoor surface 7a of the impact absorbing member 7 in an outdoor range for the glass rail 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automobile door structure.

  2. Description of the Related Art Conventionally, an automobile door structure in which an impact absorbing member is provided inside a door is known in order to protect an occupant during a side collision (for example, Patent Document 1).

In the automobile door structure 20 disclosed in Patent Document 1, as shown in FIG. 4, the door body portion 24 is provided with two parallel glass rails 22 and 23 for sliding the door glass 21 up and down. ing. The shock absorbing members 25 to 29 are divided into a vehicle interior side and a vehicle exterior side so as to avoid interference with the slide regions (not shown) of the glass rails 22 and 23 and the door glass 21. The shock absorbing members 26 and 28 are provided between the two glass rails 22 and 23.
JP-A-10-250369

  However, in some cases, it is actually difficult to arrange each component as in the above-described prior art while ensuring sufficient shock absorption performance.

  As a countermeasure, it is assumed that only one glass rail is provided at a position shifted forward or backward from the center of the door in the longitudinal direction of the vehicle, and a relatively wide impact absorbing member is installed directly beside the seating position of the occupant. .

  However, in such a configuration, it is necessary to thicken the glass rail in order to secure the support rigidity of the door glass by the amount of the single glass rail, which increases the weight of the door and increases the manufacturing cost. This will cause bad effects.

  Therefore, an object of the present invention is to obtain an automobile door structure that can lay out each component more easily and has high shock absorption performance.

  A door structure for an automobile according to the present invention includes a glass rail for slidably guiding a door glass, and an inner impact provided on both sides of the glass rail along a sliding area of the door glass on the vehicle interior side of the glass rail. An automotive door structure comprising: an absorbing member; and an outer shock absorbing member provided on both sides of the glass rail along a sliding region of the door glass outside the glass rail, and the outer shock absorbing member The most important feature is that a groove-shaped outer accommodating portion capable of accommodating the glass rail is formed in a region of the surface of the member on the vehicle interior side which is the outer side of the glass rail.

  According to the present invention, the outer impact absorbing member and the inner impact absorbing member are provided so as to straddle both sides of the glass rail along the sliding area of the door glass. Etc. can be easily laid out, and sufficient shock absorbing performance can be obtained. When the outer impact absorbing member is displaced toward the vehicle interior side during a side collision, the glass rail is relatively accommodated in the outer accommodating portion, so that the movement of the outer impact absorbing member toward the vehicle interior side (occupant side) is glass. The situation of being blocked by the rail can be prevented, the outer shock absorbing member can be moved more reliably near the occupant, and high shock absorbing performance can be ensured.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of an automobile door structure according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view (A-A cross section of FIG. 1) at the height position of the occupant's waist of the automobile door structure. FIG. 3 is a diagram showing deformation of the automobile door structure at the time of a side collision, and FIG. 3 is a diagram schematically showing a relationship between a lateral displacement amount and a waist acceleration at the time of a side collision of the automobile door structure. It is. 2A is a view before the door main body is deformed by a side collision (normal state), and FIG. 2B is a diagram showing a part of the vehicle when the door main body is deformed by a side collision. It is a figure in the state displaced only the distance L1 to the room inner side.

  As shown in FIG. 1, in the automotive door structure 1 according to the present embodiment, a glass guide 4 that slidably engages a door main body 2 with a front end portion of a door glass 3 and guides the door glass 3. Are provided with two parallel glass rails 5 and 6 which are slidably guided in the vertical direction, and two shock absorbing members 7 and 8 which are overlapped with each other in the vehicle interior / exit direction. In the example of FIG. 1, the shock absorbing member 7 is disposed outside the passenger compartment of the glass rail 6, and the shock absorbing member 8 is disposed inside the passenger compartment of the glass rail. It is provided on both sides of the glass rail 6 (in this example, both sides in the vehicle front-rear direction) on the side of the region centered on the waist of the occupant 9.

  As shown in FIG. 2, the door main body 2 includes an inner panel 10, an inner trim 11 that is positioned closest to the passenger 9 (vehicle interior side), and an outer panel 12 that is positioned closest to the vehicle exterior, A glass rail 6 is provided at substantially the center of the vehicle interior / exterior direction (vertical direction in FIG. 2). The door glass 3 is supported by a slider (not shown) that is guided by the glass rail 6 so as to freely move up and down, and slides up and down adjacent to the outside of the passenger compartment of the glass rail 6. Reference numeral 13 denotes a sliding area of the door glass 3.

  The shock absorbing member 7 outside the vehicle compartment is attached in contact with the surface on the vehicle interior side of the outer panel 12, while the surface 7 a on the vehicle interior side is adjacent to the vehicle interior outside of the slide region 13. The shock absorbing member 8 on the vehicle interior side is attached in contact with the outer surface of the inner trim 11 and passes through the opening 10 a of the inner panel 10. Adjacent to the vehicle interior side. The shock absorbing members 7 and 8 are formed by molding a synthetic resin foam or the like into a predetermined shape, for example.

  An inner accommodating portion 8b for accommodating the glass rail 6 is provided on a surface 8a on the outer side of the passenger compartment of the shock absorbing member 8, and the glass rail 6 is a door by side collision as shown in FIG. Before the main body 2 is deformed to the vehicle interior side, that is, in a normal time, the main body 2 is accommodated in the inner accommodating portion 8b.

  Further, a groove-shaped outer housing portion 7 b is provided along the glass rail 6 in a region on the vehicle interior side surface 7 a of the shock absorbing member 7 that is outside the vehicle rail of the glass rail 6. The outer housing portion 7b is formed in a size that can accommodate the glass rail 6. Specifically, the width of the outer housing portion 7 b in the vehicle front-rear direction is formed larger than the width of the glass rail 6, and the depth thereof is sufficiently larger than the height of the glass rail 6. Therefore, as shown in FIG. 2B, when the door body 2 is deformed and a part thereof is displaced to the vehicle interior side during a side collision, the glass rail 6 is moved to the vehicle interior side. 7b is relatively moved and accommodated.

  In the present embodiment, the inner wall surface (that is, the bottom surface and the side surface) of the outer housing portion 7b is provided with a plate-like reinforcing member 14 (for example, a steel plate or the like) that is at least harder than the shock absorbing member 7, and absorbs shock. The contact surface of the member 7 with the shock absorbing member 8 is also integrally covered with the reinforcing member 14. Similarly, a plate-like reinforcing member 15 having a hardness higher than that of the shock absorbing member 8 is provided on the inner wall surface (that is, the bottom surface and the side surface) of the inner housing portion 8b. The contact surface is also integrally covered with the reinforcing member 15. In addition, these reinforcement members 14 and 15 can be obtained by press molding etc., for example.

  In the automotive door structure 1 having the above-described configuration, when a side collision load (the white arrow in FIG. 2B) is applied from the outside of the outer panel 12, the door body 2 is located on the vehicle interior side, that is, on the passenger 9 side. It is displaced to. At this time, as shown in FIG. 2B, the gap (d in FIG. 2A) between the shock absorbing member 7 outside the vehicle interior and the shock absorbing member 8 inside the vehicle interior disappears, and two shocks The absorbing members 7 and 8 move to the occupant 9 side in an integrated state.

  Here, since the glass rail 6 supports the door glass 3 and the slider so as to be movable up and down, the glass rail 6 is relatively high in rigidity. Therefore, the other portions (the inner panel 10, the inner trim 11, the outer panel 12, the shock absorbing member 7, Compared to 8 etc.), the amount of displacement to the vehicle interior side at the time of a side collision is small. Accordingly, if there is no outer housing portion 7b, the shock absorbing member 7 outside the vehicle compartment abuts on the glass rail 6 with a small amount of displacement and cannot move to the vehicle interior side. In this case, the shock absorbing member 8 Only acts effectively on the occupant 9, and the shock absorbing member 7 cannot fully utilize its shock absorbing performance.

  Therefore, in the present embodiment, the outer housing portion 7b is provided so that the impact absorbing member 7 can move to the vehicle interior side without interfering with the glass rail 6 at the time of a side collision, and the two impact absorbing members 7 for the occupant 9 are provided. , 8 are integrated so that both act effectively.

  Furthermore, in the present embodiment, in order to more reliably prevent the interference between the glass rail 6 and the shock absorbing member 7 at the time of a side collision, the door main body portion 2 is in contact with the occupant 9, that is, in FIG. In the state shown, a gap δ is secured between the end 6a of the glass rail 6 outside the passenger compartment and the bottom 7c of the outer housing 7b. As described above, the gap d between the shock absorbing members 7 and 8 disappears before the door main body 2 comes into contact with the occupant 9 at the time of a side collision, so that the glass in a normal state ((a) in FIG. 2) is used. If the distance between the end portion 6a of the rail 6 and the bottom portion 7c of the outer housing portion 7b is L2, and the glass rail 6 is not displaced by a side collision, the marginal distance until the end portion 6a and the bottom portion 7c contact each other is L2. -D. Therefore, when the distance between the end portion 11a on the vehicle interior side of the inner trim 11 and the occupant 9 is L1, if the L2-d is larger than L1, the door body 2 (inner trim 11) will contact the occupant 9. Before the contact, the end 6a and the bottom 7c do not contact each other. Therefore, in the present embodiment, each part of the door main body 2 is configured so that L2−d> L1 in a normal state (FIG. 2A). In this case, the gap δ is δ = L2−d−L1, and δ has a positive value as long as L2−d> L1. In addition, since the width | variety of the waist | hip | lumbar part of the passenger | crew 9 is generally 420 mm, specifically, L1 is the center position (hip point; HP) of the passenger | crew's 9 seat outside direction, and the vehicle interior of the inner trim 11 What is necessary is just to set it as the value which reduced 210 mm from the distance with the inner side edge part 11a.

  As described above, according to the automotive door structure 1 according to the present embodiment, the impact absorbing member 7 on the outside of the vehicle interior and the impact absorbing member 8 on the interior of the interior of the vehicle are connected to the glass rail 6 along the slide region 13. Since it is provided so as to straddle both sides, the glass rail 6 and the shock absorbing members 7 and 8 can be laid out very easily in a state where good shock absorbing performance can be ensured. And according to this embodiment, since the glass-rail 6 was accommodated in the outer side accommodating part 7b relatively when the impact-absorbing member 7 of the vehicle interior outside moved to the vehicle interior side at the time of a side collision, A situation in which the movement of the shock absorbing member 7 outside the vehicle interior to the vehicle interior side is restricted by the rail 6 can be suppressed, and good shock absorbing performance can be ensured.

  In addition, since the groove-shaped inner housing portion 8b that accommodates the glass rail 6 is formed on the outer surface of the shock absorbing member 8 on the vehicle interior side, the inner housing portion 8b is not provided. The shock absorbing member 7 outside the vehicle compartment and the shock absorbing member 8 inside the vehicle compartment are brought into contact with each other from an earlier stage at the time of a side collision, so that high shock absorbing performance can be obtained more reliably.

  Further, as in the present embodiment, the vehicle interior side surface 7a of the shock absorbing member 7 outside the vehicle interior is disposed adjacent to the vehicle exterior side of the slide region 13, and the shock absorbing member 8 inside the vehicle interior is further disposed. If the surface 8a outside the vehicle compartment is arranged adjacent to the vehicle interior side of the slide region 13, the space between the abutting surfaces 7a and 8a is narrowed. The member 7 and the shock absorbing member 8 on the vehicle interior side are brought into contact with each other, so that a high shock absorbing performance can be obtained with certainty.

  Further, according to the present embodiment, since the reinforcing member 14 is provided on the inner wall surface of the outer housing portion 7b, the side wall and the like of the outer housing portion 7b are locally affected by the load in the vehicle inner direction at the time of a side collision and the reaction force thereof. Can be prevented from buckling or falling, and higher shock absorbing performance can be obtained. Further, since the reinforcing member 15 is provided also on the inner wall surface of the inner housing portion 8b, it is possible to similarly suppress the buckling and collapse and obtain higher impact absorbing performance.

  In this embodiment, since the reinforcing members 14 and 15 are provided on the surfaces 7a and 8a where the shock absorbing members 7 and 8 abut each other, the stress is locally increased in the shock absorbing members 7 and 8. Can be suppressed.

  Furthermore, according to the present embodiment, the portion where the shock absorbing member 7 and the shock absorbing member 8 abut from the horizontal distance L2 between the end 6a of the glass rail 6 outside the passenger compartment and the bottom 7c of the outer housing 7b. The value (L2-d) obtained by subtracting the gap d is longer than the horizontal distance L1 between the outer end of the passenger compartment 9 in the seated state and the end 11a of the door body 2 on the inner side of the passenger compartment ( That is, since L2-d> L1), the door main body 2 that has been deformed and moved at the time of a side collision does not come into contact with the glass rail 6 before colliding with the occupant 9, so that higher shock absorption performance is obtained. Can do.

  As shown in FIG. 3, according to the automotive door structure 1 according to the present embodiment, the conventional automotive door structure (broken line) without the outer housing portion 7 b, the inner housing portion 8 b, the reinforcing members 14, 15, and the like. ), The peak value (maximum value) of the waist acceleration is reduced, and the total amount of shock absorption energy proportional to the integral value in the graph of FIG. 3 is equal to or greater than that of the conventional structure.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made to the above embodiments without departing from the scope of the invention. For example, in the above embodiment, the case where the present invention is applied to a door that opens and closes laterally on the side of an automobile has been described. However, the present invention can also be implemented for a sliding door, a door that opens and closes vertically, and the like. it can.

  In the above embodiment, the inner wall surface of the outer housing portion and the contact surface of the outer absorbent member with the inner absorbent member are covered with the integral reinforcing member, but these are covered with separate reinforcing members. May be.

The side view of the door structure for motor vehicles concerning the embodiment of the present invention. It is AA sectional drawing of FIG. 1, Comprising: The figure which shows a deformation | transformation of the door structure for motor vehicles at the time of a side collision ((a): The figure before a door main-body part deform | transforms by a side collision (normal state), (b). : The figure shows a state in which the door body is deformed by a side collision and a part of the door body moves to the vehicle interior side by a distance L1. The figure which shows typically the relationship between the side displacement amount at the time of the side collision of the door structure for motor vehicles concerning embodiment of this invention, and a waist | hip | lumbar part acceleration. The side view of the conventional door structure for motor vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door structure for motor vehicles 2 Door main-body part 3 Door glass 5,6 Glass rail 6a End part (outside the compartment of glass rail 6) 7 Shock absorption member (outside shock absorption member)
7a Surface (inside of vehicle interior of shock absorbing member 7) 7b Outer housing portion 7c Bottom of (outside housing portion 7b) 8 Shock absorbing member (inner shock absorbing member)
8a (Outside of the vehicle interior of the shock absorbing member 8) 8b Inner accommodating portion 9 Crew 11a End (on the vehicle interior side of the door) 13 Slide region 14 Reinforcing member

Claims (4)

A glass rail that slidably guides the door glass,
An inner impact absorbing member provided across the both sides of the glass rail along the sliding area of the door glass on the vehicle interior side of the glass rail,
An outer shock absorbing member provided across the both sides of the glass rail along the sliding area of the door glass outside the glass rail cabin;
An automotive door structure comprising:
A door structure for an automobile, wherein a groove-shaped outer housing portion capable of housing the glass rail is formed in a region on the vehicle interior side of the outer impact absorbing member on the outer side of the glass rail. .   The automotive door structure according to claim 1, wherein a groove-shaped inner housing portion that accommodates the glass rail is formed on a surface of the inner shock absorbing member on the outer side of the passenger compartment.   The door structure for an automobile according to claim 1 or 2, wherein a reinforcing member is provided on an inner wall surface of the outer housing portion. The value obtained by subtracting the length of the gap between the outer shock absorbing member and the inner shock absorbing member from the horizontal distance between the outer end of the glass rail and the bottom of the outer housing portion, The door structure for an automobile according to any one of claims 1 to 3, characterized in that it is longer than a distance in a horizontal direction between an end portion on the vehicle exterior side and an end portion on the vehicle interior side of the door.

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