JP4470545B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure that suppresses a door from entering a vehicle interior in response to a load input from the side of the vehicle.

In order to prevent the door from entering the vehicle interior in the event of a side collision of the vehicle, a striker having a U-shaped engaging portion is fixed to the lower portion of the door, while a through-hole formed in a portion facing the striker of the vehicle body If a rocker with an L-shaped cross section is provided near the inside of the door and the middle part of the door is deformed toward the vehicle interior by the input of a side impact load, the lower part of the door bends and deforms upward in the vehicle width direction. It is known that the engaging portion of the door is engaged with the rocker to prevent further deformation of the door, and thus the door is prevented from entering the vehicle interior (see, for example, Patent Document 1). ).
JP-A-6-305331 (page 3, FIG. 1)

  However, in such a conventional vehicle door structure, there is a possibility that the door cannot be opened because the striker engages the rocker at the time of a side collision.

  Accordingly, the present invention provides a vehicle door structure that can prevent the door from entering the vehicle interior in response to a load input from the side of the vehicle and that can reliably open the door even when the door is deformed. To do.

In the vehicle door structure according to the present invention, the insertion member is provided at the peripheral edge of the door so as to protrude in the door closing direction, and has a tapered conical portion at the tip thereof, and contacts the insertion member when the door is closed. A door having a fitting portion integrated with an insertion member formed by an input of a collision load from a side of the vehicle, wherein a through-hole having an inverted cone shape through which the cone-shaped portion can be passed is formed. A receiving member that receives a load in the door closing direction, and a release surface provided at a highly rigid portion of the vehicle body for locking the receiving member to support the load input to the receiving member and formed at the tip. The main feature is that a base member that is provided with an engaging member that engages with the receiving member and that causes the door to be detached from a load of a predetermined value or more that acts in the door opening direction is provided. To do.

  According to the present invention, when the door is closed in a normal door opening / closing operation, the insertion member comes into contact with the receiving member, and the receiving member receives the door closing force, and the receiving member passes through the base member. As a result, the door closing force of the door can be supported on the vehicle body side.

  When the door is normally opened, the insertion member is separated from the receiving member, and the inserting member and the receiving member are separated.

On the other hand, when a collision load is input to the door by a side collision, the insertion member provided with a tapered cone-shaped portion at the tip is formed with an inverted cone-shaped through-hole through which the cone-shaped portion can pass. Although integrally fitted to the fitting portion in which separation between the insert receiving member becomes impossible, pressing a predetermined value or more force in a direction to open the door, leaving surface formed on the tip portion of the engaging member And the receiving member are disengaged and the receiving member is detached from the base member, so that the door can be opened with the receiving member attached to the insertion member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 5 show an embodiment of a vehicle door structure according to the present invention. FIG. 1 is an exploded perspective view of a main part, FIG. 2 is a sectional view of the main part, and FIG. FIG. 4 is a cross-sectional view of a main part showing an operating state when a side collision load is inputted, and FIG. 5 is a cross-sectional view of a main part showing a door opened state after the side collision load is inputted.

  As shown in FIGS. 1 and 2, the vehicle door structure of the present embodiment is provided with a striker 2 as an insertion member provided at the peripheral edge of the door 1 so as to protrude in the closing direction of the door 1, and the striker 2 when the door is closed. A catcher 3 as a receiving member that receives a load in the closing direction of the door 1, and includes a fitting portion 3 a that is brought into contact with and integrated with the striker 2 by input of a collision load F from the side of the vehicle; , Provided on a side sill 5 as a high-rigidity portion of the vehicle body 4 to lock the catcher 3, support a load input to the catcher 3, and act on the door in a direction in which the door is opened. And a base member 7 having a detaching means 6 for detaching the catcher 3 with respect to a load.

  The striker 2 is formed as a rod-like body protruding from the mounting plate 10 fixed to the inner surface of the lower end 1a of the door 1 toward the vehicle interior (left side in the figure), and the tip of the striker 2, that is, the striker 2 The diameter of the fitting portion to the catcher 3 is increased, and a tapered cone portion 11 is provided in the large diameter portion. On the other hand, the fitting portion 3a of the catcher 3 has an inverted cone shape that allows the cone portion 11 to pass through. It is formed as a (mortar-shaped) through hole.

  The upper side of the catcher 3 is formed in an arc shape in the formation portion of the fitting portion 3a, so that the thickness of the upper peripheral portion of the fitting portion 3a is thinned, and the conical portion 11 of the striker 2 is formed. When a large force toward the vehicle interior, that is, a load at the time of a side collision, is applied, the conical portion 11 deforms the thin peripheral portion and penetrates the fitting portion 3a as shown in FIG. The largest diameter portion of the portion 11 is engaged with and integrated with the side surface of the fitting portion 3a.

  Further, the outer peripheral surface of the conical portion 11 is covered with a bumper rubber 12 as an elastic material layer. In this case, the bumper rubber 12 may be provided on the inner peripheral surface of the fitting portion 3a without being provided on the cone portion 11, or provided on both the cone portion 11 and the fitting portion 3a. Also good.

  The catcher 3 is formed of a thick block piece, and the fitting portion 3a is formed through substantially the center portion of the catcher 3 and a pair of mounting holes 3b penetrating in the vehicle width direction are formed at both ends in the vehicle longitudinal direction. It is.

  The base member 7 is formed in an L-shaped cross section by a vertical wall 7a that contacts the catcher 3 on the vehicle interior side and a lower wall 7b that protrudes outward from the lower end of the vertical wall 7a. is there.

  The side sill 5 provided with the base member 7 is formed in a closed cross-section by joining flange portions 5af and 5bf of a side sill inner 5a and a side sill outer 5b formed in a hat-shaped cross section at the upper and lower portions.

  The base member 7 is disposed on the upper surface of the side sill outer 5b of the side sill 5, and the vertical wall 7a is attached to the outer side of the upper flange portion 5bf.

  A pair of holding poles 13 slidably fitted in the mounting holes 3b of the catcher 3 are provided on both ends of the vertical wall 7a in the vehicle front-rear direction so as to protrude outward from the vehicle compartment, and the lower wall 7b The detaching means 6 is provided at a substantially central portion.

  As shown in FIG. 3, the detaching means 6 is provided in a retractable recess 7c formed in the lower wall 7b so as to be able to protrude and retract, and an detaching surface 6a 'formed at the tip is formed in an engagement hole formed in the lower surface 3c of the catcher 3. An engagement element 6a that engages with 3d, that is, engages at a substantially right angle with respect to the direction in which the catcher 3 is disengaged (outward of the passenger compartment), and a compression spring 6b as an urging member that urges the engagement element 6a in the protruding direction It is constituted by.

  The detachment surface 6a 'is a peripheral portion of the opening portion of the engagement hole 3d when a force outside the vehicle compartment, that is, a force for opening the door 1, is applied to the catcher 3 in a state where the separation surface 6a' is fitted in the engagement hole 3d. Thus, the engaging element 6a has a function of pushing down the housing recess 7c inward, and can be configured by forming a chamfer or a spherical surface at the tip of the engaging element 6a.

  According to the vehicle door structure of the present embodiment having the above configuration, the attachment hole 3b of the catcher 3 is fitted to the holding pole 13 of the vertical wall 7a of the base member 7 fixed to the side sill 5, and The catcher 3 is held by the base member 7 because the disengagement surface 6 a ′ of the engagement element 6 a is engaged with the engagement hole 3 d of the catcher 3.

  When the door is closed in the normal opening and closing operation of the door 1, the striker 2 comes into contact with the fitting portion 3 a of the catcher 3 when the door 1 is completely closed, and the catcher 3 receives the closing force of the door 1. At this time, since the catcher 3 is supported by the side sill 5 portion, which is a highly rigid portion of the vehicle body 4, via the base member 7, the door closing force of the door 1 is reliably supported on the vehicle body 4 side as a result. can do.

  On the other hand, when the normal door is opened, the striker 2 is separated from the fitting portion 3a of the catcher 3, and the striker 2 and the catcher 3 are separated.

  On the other hand, when the collision load F is input to the door 1 due to the side collision, the striker 2 penetrates the fitting portion 3a and the conical portion 11 is the inner side surface of the fitting portion 3a as shown in FIG. Since the striker 2 and the catcher 3 cannot be separated from each other, when the door 1 is pushed with a force of a predetermined value or more in the opening direction, it is held by the releasing means 6 as shown in FIG. Since the catcher 3 separates from the base member 7 while pushing the engaging element 6a of the detaching means 6 against the urging force of the spring 6b into the housing recess 7c, the door 1 is in a state where the catcher 3 is attached to the striker 2. Can be opened.

  By the way, in this embodiment, in addition to the above-described effects, a tapered conical portion 11 is provided at the tip of the striker 2, and an inverted conical shape through which the conical portion 11 can pass through the fitting portion 3a of the catcher 3 is provided. Since the hole is formed as a hole, when the striker 2 is inserted into the fitting portion 3a of the catcher 3 when the door is closed, the outer tapered portion of the conical portion 11 serves as a guide to securely hold the striker 2 in the fitting portion 3a. Since it can be inserted, an assembly error between the striker 2 and the catcher 3 can be absorbed.

  Further, since the outer side surface of the conical portion 11 is covered with the bumper rubber 12, the bumper rubber 12 functions as a cushioning material between the door 4 and the vehicle body 4 when the door is closed. 4 can be used as a stopper rubber between the two and the number of parts can be reduced.

  Further, since the base member 7 is formed with the vertical wall 7a that comes into contact with the catcher 3 on the vehicle interior side, the load input to the catcher 3 at the time of a side collision can be received by the vertical wall 7a of the base member 7. The movement of the catcher 3 to the vehicle compartment 2 can be suppressed, and as a result, the door 1 can be prevented from entering the vehicle interior.

  Furthermore, since the base member 7 is mounted in a state where it abuts against the outer side of the flange portion 5bf above the side sill 5, the movement preventing force of the base member 7 toward the interior of the vehicle interior is increased, and consequently the vehicle of the door 1 is increased. It is possible to further improve the indoor entrance prevention force.

  Further, as shown in FIG. 3, the detaching means 6 is provided on the base member 7 so as to be able to move in and out, and a detaching surface 6 a ′ formed at the front end portion engages at a substantially right angle with respect to the detaching direction of the catcher 3. And the compression spring 6b that urges the engaging element 6a in the projecting direction, so that the catcher 3 can be reliably detached and the door 1 can be opened reliably after a side collision, and the compression spring 6b By adjusting the spring constant in advance, the separation force of the catcher 3, that is, the opening power of the door 1 after the side collision can be freely set.

  In the vehicle door structure of the present embodiment described above, a center pillar is provided in particular because a stopper function when the door is closed and the door opening after a side collision can be secured between the lower portion of the door 1 and the side sill 5. When applied to a center pillarless vehicle such as a hard top vehicle, it can exert a great effect.

  The present invention has been described by taking the above embodiment as an example. However, the present invention is not limited to this embodiment, and various other embodiments can be adopted without departing from the gist of the present invention.

It is a disassembled perspective view of the principal part in one Embodiment of this invention. It is sectional drawing of the principal part in one Embodiment of this invention. It is an expanded sectional view of the A section in FIG. It is sectional drawing of the principal part which shows the operation state at the time of the input of the side collision load in one Embodiment of this invention. It is sectional drawing of the principal part which shows the door open state after the input of the side collision load in one Embodiment of this invention.

Explanation of symbols

1 door 2 striker (insertion member)
3 Catcher (receiving member)
3a Catcher fitting part 4 Car body 5 Side sill (High rigidity part of car body)
6 Disengaging means 6a Engaging element 6a 'Disengaging surface 6b Compression spring (biasing means)
7 Base member 7a Vertical wall 11 Conical part 12 Bumper rubber (elastic material layer)

Claims (4)

An insertion member provided at the peripheral edge of the door so as to protrude in the door closing direction and having a tapered cone-shaped portion at the tip thereof, and a reverse contact with which the insertion member abuts the insertion member when the door is closed. A receiving member for receiving a load in the door closing direction, including a fitting portion that is formed with a conical through hole and is fitted and integrated with the insertion member by input of a collision load from the side of the vehicle; An engaging member is provided on the high-rigidity portion to lock the receiving member to support a load input to the receiving member, and a detachable surface formed at the tip portion engages the receiving member. And a base member for detaching the receiving member with respect to a load greater than or equal to a predetermined value acting in the opening direction of the door. The vehicle door structure according to claim 1, wherein at least one of the outer peripheral surface of the conical portion or the inner peripheral surface of the through hole is covered with an elastic material layer. The vehicle door structure according to claim 1 or 2, wherein the base member includes a vertical wall that abuts the receiving member on the vehicle interior side. The high rigidity part of the vehicle body is a side sill that is arranged on both sides of the vehicle body floor in the vehicle width direction and is formed in a closed cross-section by joining the flange part of the outer panel and the inner panel at the upper and lower parts, outside the flange part above this side sill The vehicle door structure according to any one of claims 1 to 3, wherein the base member is disposed in contact with the base member.

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