JP2008213540A - Vehicle body side part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body side part structure capable of preventing a door from being bent and deformed as much as possible in a vehicle lateral side collision and holding the door for a vehicle body securely even when the door is bent and deformed without making door closing operation difficult. <P>SOLUTION: This vehicle body side part structure is constituted by forming a bag-like part 8 in a lower part of the side door 1, providing a vertical wall part 18 extended in the vertical direction on a side sill 6, forming a side wall part 7 facing the side sill 6 and an internal wall part 5 facing a vehicle interior on a door inner 3, providing an opening part 23 in the side wall part 7 of the door inner 3, providing a partially cylindrical hook main body 32 capable of protruding through the opening part 23 and being stored in the bag-like part 8 by turning and driving it in the bag-like part 8, and protruding the hook main body 32 through the opening part 23 to lock in a vertical wall part 7 from a vehicle interior side when closing the door. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle body side structure that protects an occupant from a side collision.

Some vehicles, such as automobiles, take measures to prevent the door from being separated from the vehicle body and retained by the vehicle body even if an impact load is applied to the vehicle side door during a vehicle side collision. A vehicle body side structure is known. For example, the side sill is provided with a hooking member toward the outside of the vehicle body, and the door is provided with an engaging portion that locks to the lower side of the hooking member. Is prevented (see Patent Document 1).
JP 2005-41333 A

However, the above prior art has a structure in which the door side engaging portion is hooked downward with respect to the hooking member provided on the side sill toward the outside of the vehicle body. If the door is greatly bent and deformed, there is a problem in that the engagement portion on the door side is displaced in the direction of retreating with respect to the hook portion, the engagement at this portion is released and the door cannot be held with respect to the vehicle body.
On the other hand, it is conceivable that the engaging part on the side of the door is not easily disengaged, but it is possible to engage the hook part so as to be engaged, but in this case, the door cannot be closed.

  Therefore, the present invention suppresses the bending deformation of the door as much as possible at the time of a vehicle side collision without disturbing the door closing operation, and securely holds the door against the vehicle body even when the door is bent and deformed. An object of the present invention is to provide a vehicle body side structure that can be used.

In order to achieve the above object, the invention described in claim 1 includes a door skin (for example, the door skin 2 in the embodiment) of the vehicle door (for example, the side door 1 in the embodiment) and a door inner ( For example, a vertical wall that forms a bag-like portion (for example, the bag-like portion 8 in the embodiment) at the lower portion of the door with the door inner 3) in the embodiment and extends in the vertical direction on the side sill (for example, the side sill 6 in the embodiment). (For example, the vertical wall portion 18 in the embodiment), the side wall portion facing the side sill (for example, the side wall portion 7 in the embodiment) and the inner wall portion facing the vehicle interior (for example, the inner wall portion in the embodiment). 5), an opening (for example, the opening 23 in the embodiment) is provided in the side wall of the door inner, and a rotational drive is provided in the bag-like portion. Thus, a partially cylindrical hook (for example, the hook main body 32 in the embodiment) that can be protruded and stored from the opening is provided, and the hook protrudes from the opening when the door is closed, and the casing is formed in the vertical wall. It is characterized in that it can be locked from the inside.
With this configuration, when an impact load is applied to the door at the time of a vehicle side collision, the door receives a force in a direction that bends inward, but when the door is closed, the hook provided at the bottom of the door is against the vertical wall of the side sill. Since it is locked from the vehicle interior side, it is possible to prevent the door lower portion from being retracted to the vehicle interior outside due to the bending deformation of the door.

The invention described in claim 2 is characterized in that a reinforcing stiffener (for example, the stiffener 38 in the embodiment) is attached to the door inner so as to surround the rotation center of the hook.
By configuring in this way, it is possible to prevent the hook from entering the vehicle interior side due to an input load that acts upon a side collision.

According to the first aspect of the present invention, when an impact load is applied to the door at the time of a vehicle side collision, the door receives a force in a direction that bends inward. Since the door is bent from the vehicle interior side, it is possible to prevent the door lower part from being retracted to the outside of the vehicle interior due to the bending deformation of the door, and thus the vehicle interior due to the door being bent toward the vehicle interior side. Intrusion into the vehicle can be suppressed, and the door can be securely held against the vehicle body.
According to the second aspect of the present invention, even if the hook moves to the vehicle interior side due to the input load acting at the time of the side collision, this movement can be prevented, and as a result, the hook enters the vehicle interior side. There is an effect that can be surely prevented.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway perspective view of the lower part of the front side door 1 as viewed from the front side. The same applies to the rear side door.

As shown in FIGS. 1 and 2, the front side door 1 is formed by joining a door skin 2 on the outside of the vehicle body and a door inner 3 on the inside of the vehicle body at a hemming portion 4 on the peripheral edge. The door inner 3 includes an inner wall portion 5 facing the vehicle interior side, and a side wall portion 7 formed obliquely outwardly and downwardly on the lower side of the inner wall portion 5 and facing the side sill 6.
A bag-like portion 8 is formed at a lower portion of the side door 1 at a portion surrounded by the door skin 2 and the door inner 3.

As shown in FIG. 2, the side sill 6 constitutes the lower side of the side door mounting opening of the vehicle body, and is provided along the longitudinal direction of the vehicle body on both side edges of the floor panel P (see FIGS. 10 and 11). The vehicle body skeleton member.
The side sill 6 is formed by a sill inner panel 10 and a sill outer panel 11 in a closed cross-sectional structure. The sill outer panel 11 includes a lower edge flange 12 extending from the lower edge to the lower side and an upper edge flange 13 extending from the upper edge to the upper side, and the space between the lower edge flange 12 and the upper edge flange 13 bulges toward the outside of the passenger compartment. It is a formed member. The lower edge flange 12 and the upper edge flange 13 of the sill outer panel 11 include a lower edge flange 14 that extends downward from the lower edge of the sill inner panel 10 and an upper edge flange 15 that extends upward from the upper edge of the sill inner panel 10. Each is joined.

  The upper edge flange 13 of the sill outer panel 11 is provided with an upper extension portion 16 that extends further upward from the joint portion of the upper edge flange 15 of the sill inner panel 10. Side sill flanges 17 extending horizontally toward the outside are provided up to a portion reaching the vicinity of the door inner 3. A vertical wall portion 18 that is bent downward is formed at a terminal portion of the side sill flange 17. The vertical wall portion 18 is formed to a position where the height direction of the upper edge flange 13 of the sill outer panel 11 is lowered to about half.

  A door glass 19 is supported inside the side door 1 so as to be movable up and down, and a bag-like portion 8 formed of the door skin 2 and the door inner 3 is provided below the lower end of the door glass 19 at the storage position of the door glass 19. Is formed.

The door inner 3 has an opening 23 formed above the hemming portion 4. The opening 23 is formed along the vehicle body longitudinal direction of the side door 1. Here, the opening 23 may be provided over substantially the entire region of the side door 1 in the longitudinal direction of the vehicle body, or may be partially provided in a range of a shorter length than the entire region.
The bag-like portion 8 below the side door 1 is provided with a partially cylindrical hook F that can be protruded and stored from the opening 23 by being rotationally driven.

As shown in FIG. 3, the hook F has a rotation center 24 as an inner edge of the connection plate 31 disposed in the front-rear direction inside the bag-shaped portion 8, and the hook F One end of the inner edge is supported by the bearing 25 via a pin N, and the other end of the inner edge of the connection plate 31 which is the other end of the rotation center 24 is connected to the shaft 27 of the motor 26 via the pin N. The bearing 25 and the motor 26 are fixed to the door inner 3. Here, the shaft 27 of the motor 26 and the other end of the inner edge of the connecting plate 31 are connected via a coil spring 30. A hook body 32 is attached to the outer edge of the connecting plate 31.
The hook body 32 is a member formed in a partial cylindrical shape. Specifically, it is provided with an arc-shaped outer peripheral wall obtained by cutting a cylindrical member about 180 degrees, and is fixed to the outer edge of the connecting plate 31 so that the rotation center 24 is located at the center of the outer peripheral wall. The hook body 32 and the connecting plate 31 constitute a hook F.

Here, when the hook F is rotated around the rotation center 24, the locking position where most parts protrude from the opening 23, the storage position in the bag-like portion 8 of the side door 1, The posture of the hook body 32 can be changed to a storage position including the position where the tip edge of the hook body 32 coincides with the opening 23 and stored inside the side door 1. In this embodiment, the posture change of the hook F to the retracted position is performed by the rotation operation of the motor 26, and the posture change of the hook F to the locking position is the inner edge of the shaft 27 and the connecting plate 31 of the motor 26. A coil spring 30 provided between the other end of the coil 26 is configured to use an elastic force that is deformed and stored in the torsional direction by the rotation of the motor 26. Here, the on / off switching of the motor 26 is performed by a circuit 34 linked to a room lamp on / off switch 33 by a door opening / closing operation, as shown in FIG. Reference numeral 35 denotes a battery.
Accordingly, when the side door 1 is closed, the room lamp is turned off, and in conjunction with this, the hook main body 32 is locked by the coil spring 30 (see the broken lines in FIGS. 5 and 2). In conjunction with this, the motor 26 is turned on, and the hook body 32 is rotationally driven around the rotation center 24 to bring the hook body 32 into the retracted position (see solid lines in FIGS. 4 and 2).

Here, in the locking position of the hook main body 32, the vicinity of the outer edge of the hook main body 32 passes through the vicinity of the shoulder portion 36 of the sill outer panel 11 of the side sill 6, with the upper edge flange 13, the side sill flange 17 and the vertical wall portion 18. The outer edge of the hook main body 32 comes into contact with and locks from the vehicle interior side of the vertical wall portion 18 toward the corner portion 37 between the vertical wall portion 18 and the side sill flange 17. It is like that.
A stiffener 38 for reinforcement is attached to the inner surface of the door inner 3 at a position straddling the inner wall 5 from the side wall 7 above the opening 23 of the door inner 3 so as to surround the rotation center 24 of the hook F. . Here, the stiffener 38 is attached at a position overlapping the vertical wall portion 18 of the side sill 6.

According to the embodiment, as shown in FIGS. 2 to 4, when the door opening operation is started, the room lamp switch 33 is turned on, the circuit 34 is closed, and the motor 26 is driven. As a result, the posture of the hook F changes to the retracted position (see FIG. 4), so that the side door 1 can be opened. At this time, the coil spring 30 is deformed in the torsion direction and is in a state where the elastic force is stored. Here, in the state in which the hook F is stored in this manner, the opening 23 is closed by the tip of the hook body 32, so that the opening 23 is not visible and the commercial property can be maintained.
Further, when the side door 1 is closed, the room lamp switch 33 is turned off, and the hook F projects from the opening 23 of the side door 1 to the locked position by the elastic force of the coil spring 30. Change (see FIG. 5). At this time, the motor 26 is not affected by the return deformation of the coil spring 30.
Therefore, the motor 26 is driven only when the side door 1 is opened, and the posture change to the locking position of the hook F uses the elastic force of the coil spring 30, so that no extra load is applied to the battery 35.

  Here, as shown in FIG. 10, when another vehicle C 'collides from the side of the side door 1 of the vehicle C, the bumper of the other vehicle C' starts to be crushed and deformed. Next, the front side frame M of another vehicle C ′ located at the position shown in FIG. 6 deforms the door skin 2 of the side door 1 of the vehicle C inward as shown in FIGS. 7 and 11. During this time, the door skin 2 of the side door 1 tends to bend and deform toward the vehicle interior side in the shape of a dogleg, and a force that jumps upward while retreating acts on the lower end of the side door 1.

  However, the hook F on the side door 1 side, specifically, the hook main body 32 faces the corner portion 37 formed by the side sill flange 17 and the vertical wall portion 18 of the sill outer panel 11 of the side sill 6. Since the hook body 32 is locked so as to be pressed outward from the vehicle interior side, the hook body 32 cannot be displaced outward by the vertical wall portion 18 of the side sill 6 and the engagement force is maintained. Therefore, the lower end portion of the side door 1 is prevented from jumping up and the side door 1 can be prevented from being deformed into a U-shape. As a result, the vicinity of the central portion in the vertical direction of the side door 1 does not enter the vehicle interior any more, and the vehicle interior space of the vehicle C can be secured. Further, the side door 1 does not come off the vehicle C and can be reliably held by the vehicle C.

  Then, as shown in FIG. 8, the collision of the vehicle C ′ proceeds, and as shown in FIG. 9, the front side frame M of the vehicle C ′ further presses the side door 1, and the connection plate 31 of the hook F Even if the pin N connecting the bearing 25 or the motor 26 is broken, the hook F can be prevented from being displaced toward the vehicle interior by the stiffener 38, so that the hook F can be prevented from entering the vehicle interior. That is, the stiffener 38 is caught at the corner 37 of the side sill 6 at the upper part, and the lower part of the door skin 2 is pushed at the lower part of the stiffener 38 by pushing the connecting plate 31 of the hook F at the lower part of the stiffener 38. Displacement can be reliably prevented. Of course, the side door 1 does not come off the vehicle C as long as the hook F is locked to the vertical wall portion 18 of the side sill 6.

It is a partially cutaway perspective view of a front side door according to an embodiment of the present invention. It is principal part sectional drawing of embodiment of this invention. It is a perspective view of a hook of an embodiment of this invention. It is sectional drawing at the time of the side door opening of embodiment of this invention. It is sectional drawing at the time of the side door closing of embodiment of this invention. It is sectional drawing at the time of the side collision of embodiment of this invention. It is sectional drawing at the time of the side collision of embodiment of this invention. It is sectional drawing at the time of the side collision of embodiment of this invention. It is sectional drawing at the time of the side collision of embodiment of this invention. It is explanatory drawing of the side collision initial stage of embodiment of this invention. It is explanatory drawing of the side collision end of embodiment of this invention.

Explanation of symbols

1 Side door (vehicle door)
2 Door skin 3 Door inner 5 Inner wall part 6 Side sill 7 Side wall part 8 Bag-like part 18 Vertical wall part 23 Opening part 23 Hook body (hook)
38 Stiffna

Claims (2)

  A bag skin portion is formed at the lower portion of the door by a door skin outside the vehicle body of the vehicle door and a door inner inside the vehicle body, a vertical wall portion extending in the vertical direction is provided on the side sill, and the side wall portion facing the side sill and the vehicle Forming an inner wall facing the room, providing an opening in the side wall of the door inner, and providing a partially cylindrical hook in the bag-like portion that can be protruded and stored by rotating. The vehicle body side structure is configured such that when the door is closed, the hook protrudes from the opening and can be locked to the vertical wall from the vehicle interior side.   The vehicle body side structure according to claim 1, wherein a stiffener for reinforcement is attached to the door inner so as to surround a rotation center of the hook.

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