JP2006076337A - Cover structure for door lock mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize smooth deployment action without giving a hindrance to the deployment action of a curtain type airbag in a cover structure of a door lock mechanism in a vehicle in which the curtain airbag is installed on a roof side part and a side door is a hinged double doors. <P>SOLUTION: A cover body 10 covering a striker 5 is made to a two division structure of an outer side cover 20 having an opening 21 and an inner side cover 30 covering an indoor surface side of the curtain type airbag 8. At least the inner side cover 30 is detachably constituted relative to a roof panel 4. Thereby, at the deployment action of the curtain type airbag 8, the inner side cover 30 is easily separated from the outer side cover 20 and a joined line L of both covers 20, 30 is set to a position capable of avoiding interference with the side door 2 (3). Thereby, smooth deployment action of the curtain type airbag 8 is realized. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cover structure for a door lock mechanism in a vehicle in which a curtain-type airbag is provided on a roof side portion of a vehicle and the side doors (front door and rear door) can be opened and closed in a double door manner. In particular, the present invention relates to a cover structure of a door lock mechanism that can easily perform fine adjustment work of a striker and enables a smooth deployment operation when a curtain airbag is deployed.

  For example, a vehicle is known in which the center pillar is abolished and the side door can be opened and closed in a double door manner. For example, Patent Document 1 describes a vehicle having a double door side door. That is, as shown in FIG. 7, the front door 2 and the rear door 3 are provided on the side surface of the vehicle body 1 in a double door manner. The rear door 3 has a rear portion hinged to the vehicle body 1, and similarly, a rear edge of the front door 2 whose front portion is hinged to the vehicle body 1 and a front edge of the rear door 3. It is supposed to come together.

  As a door lock mechanism for the front door 2 and the rear door 3, for example, as shown in FIG. 8, a striker 5 is fixed to the roof panel 4 by bolting or the like, and a latch 6 engaged with the striker 5 is a front door. 2 or a portion corresponding to the striker 5 of the rear door 3 (see, for example, Patent Document 2).

  By the way, since the striker 5 in the door lock mechanism is exposed to the outside of the vehicle when the front door 2 and the rear door 3 are opened, the cover body 7 that covers the mounting portion of the striker 5 is set as shown in FIGS. Has been.

  In recent years, more and more vehicles are equipped with a curtain airbag 8 along the roof side portion that inflates along the window side of the side door at the time of a side collision or rollover of the vehicle. Normally, when the curtain airbag 8 is deployed, the terminal 9a of the roof trim 9 and the cover body 7 are bent and deformed so that the curtain airbag 8 is deployed.

JP 2002-264762 A (2nd page, FIG. 6)

JP 2002-200919 A (2nd page, FIG. 9)

  Thus, conventionally, in a vehicle having a curtain airbag 8 and having a door lock mechanism for the double doors 2 and 3, the fine adjustment operation of the striker 5 with respect to the latch 6 of the side doors 2 and 3 is performed. When performing the adjustment, it is pointed out that the cover body 7 is removed and fine adjustment is performed every time adjustment work is performed, so that it takes time to make fine adjustment work for the door lock mechanism.

  In addition, as shown in FIG. 10, when the fixing point is set on the vertical wall portion of the roof panel 4 as the mounting position of the striker 5, the terminal 9a of the roof trim 9 becomes an obstacle and the work is more difficult. Tend to be.

  Furthermore, when the curtain airbag 8 is deployed, such as when the vehicle side crashes or rolls over, the striker 5 is caught by the opening 7a of the cover body 7, and deformation of the cover body 7 in the opening direction toward the vehicle inner side is restricted. Therefore, this is a factor that hinders the smooth deployment of the curtain airbag 8.

  The present invention has been made in view of such circumstances, and includes a cover structure for a door lock mechanism in a double door type vehicle including a curtain airbag along a roof side portion, and a door lock. It is an object of the present invention to provide a cover structure for a door lock mechanism that enables a smooth deployment operation of a curtain-type airbag, such as a vehicle side collision and a rollover, as well as a simple mechanism for fine adjustment. .

  In order to achieve the above object, according to the present invention, a curtain-type airbag is provided on the roof side portion, and the side door is opened and closed in a double door manner, and the striker in the door lock mechanism of the side door is fixed to the roof panel. And, in the cover structure of the door lock mechanism in which the mounting portion of the striker is covered with the cover body, the cover body covers the outer side cover having an opening through which the striker passes, and the indoor surface side of the curtain airbag, The outer cover and the outer cover are divided into two parts, the outer cover and the inner cover that are separably joined based on a joining line set below the curtain airbag or along the side of the vehicle. The inner side cover is independently attached to the roof panel and the inner side The bar is detachably attached to the roof panel, and the joint line of both covers is set so as to be offset toward the vehicle interior side. It is characterized by avoiding interference with the part.

  Here, the cover body is composed of a two-part body of an outer side cover whose cover surface faces the vehicle interior side and an inner side cover whose cover surface faces the vehicle interior side. Both covers are injection molded bodies of synthetic resin. And are attached to the roof panel independently. The inner side cover and the outer side cover are separably joined based on a joining line set below the curtain type airbag or along the side of the vehicle. The outer cover has the tip of the striker on the outside of the vehicle. An opening for exposure is provided, and the inner side cover is detachably attached to the roof panel.

  And, in the joining line of the outer side cover and the inner side cover, especially the joining edge part of the inner side cover can avoid interference with the indoor side corner part of the upper side door during the deployment operation of the curtain type airbag. It is set to a position that is biased toward the indoor side as much as possible.

  Therefore, according to the present invention, when the curtain-type airbag is deployed, such as when the vehicle crashes or rolls over, the stress from the curtain-type airbag is applied to the cover body. The engagement with the cover is released and both covers are separated. Then, due to the deployment stress of the curtain type airbag, the inner edge of the inner cover is pivoted with the upper end as a fulcrum. Deploy to work.

  At this time, since the joint edge portion of the inner side cover is set so as to be offset toward the indoor side, interference of the side door can be avoided, and the inner side cover may be caught by the indoor side corner portion at the upper end of the side door. Therefore, a smooth curtain-type airbag deployment operation can be expected.

  Further, when the striker is finely adjusted in the door lock mechanism, it is possible to expose the striker mounting portion by simply removing the inner side cover from the roof panel, and the fine adjustment operation of the door lock mechanism can be easily performed.

  Next, a preferred embodiment of the present invention is characterized in that the indoor corner portion at the upper end of the side door is biased toward the vehicle exterior side. And according to this embodiment, the outer side cover and the inner side cover can be changed during the deployment operation of the curtain airbag by changing the position so that the indoor corner portion at the upper end of the side door is biased toward the vehicle exterior side. After the separation, when the inner side cover is pushed by the curtain-type airbag toward the vehicle interior side and deployed, the interference between the inner side cover and the side door can be avoided more reliably.

  As described above, according to the cover structure of the door lock mechanism according to the present invention, in the door lock mechanism of the side door that is opened and closed in a double door manner, the outer side cover and the inner side cover that cover the striker are detachably joined, In particular, when deployment pressure from the curtain-type airbag is applied to the inner surface of the inner cover, it is pressed toward the upper end of the side door before the two covers are separated, and the inner cover is Is pivoted so that the lower end expands indoors with fulcrum as the fulcrum. At this time, the joint edge of the inner side cover is biased toward the indoor side and is set at a position close to the indoor side corner at the upper end of the side door, so that interference occurs between the inner side cover and the side door. There is nothing. Therefore, the inner side cover can be smoothly deployed toward the vehicle interior, thereby preventing the deployment of the curtain airbag and preventing the curtain airbag from being smoothly deployed.

  Hereinafter, the best mode of a cover structure in a door lock mechanism according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an external view showing a side portion of a vehicle to which a cover structure according to the present invention is applied, FIG. 2 is a perspective view of a cover body used in the cover structure of a door lock mechanism according to the present invention as viewed from the indoor side, and FIG. Explanatory drawing which shows the relationship between the cover body used for the cover structure of the door lock mechanism which concerns on this invention, and the bracket by the side of a roof panel, FIG. 4 shows the structure of one Example of the cover structure in the door lock mechanism which concerns on this invention. Cross-sectional views, FIGS. 5 and 6 are cross-sectional views showing a state when the curtain airbag is operated in the cover structure.

  In FIG. 1, on the side of the vehicle body 1, a front door 2 and a rear door 3 are attached as side doors in a double door manner as indicated by arrows in FIG. Further, the front door 2 and the rear door 3 are respectively provided at the upper and lower ends of the striker 5 and the front door 2 fixed to the roof panel 4 side or the free end side of the rear door 3 supported by hinges with respect to the vehicle body 1. A door lock mechanism comprising a latch (not shown in FIG. 1 but indicated by reference numeral 6 in FIG. 8) is provided, and the roof side portion of the roof panel 4 has a curtain airbag (FIG. 1). In FIG. 4, although not shown, it is equipped with a symbol 8 in FIG.

  By the way, this invention has the characteristics in the structure of the cover body 10 which covers the striker 5 in a door lock mechanism. Here, the enlarged portion in FIG. 1 is an external view of the cover body 10 viewed from the outside of the vehicle, and FIG. 2 is an external view of the cover body 10 viewed from the indoor side. The inner side covers 30 face each other. That is, as shown in FIGS. 3 and 4, the cover body 10 is composed of a two-part body of an outer side cover 20 and an inner side cover 30, and both the covers 20, 30 are made of the curtain airbag 8. It joins so that isolation | separation is possible based on the joining line (it shows with the code | symbol L in FIG. 4) set along the downward or vehicle side.

  First, as shown in FIG. 3, the outer cover 20 includes an opening 21 for exposing the striker 5 to the outside, and clip mounting seats 22 for fixing the striker 5 to the roof panel 4 at two positions on the left and right sides. It is installed. Then, the outer cover 20 is attached to the roof panel 4 by being fixed to the attachment hole of the roof panel 4 with the iron clip 23 attached to the clip attachment seat 22. This outer side cover 20 is comprised from the injection molding body of general purpose synthetic resins, such as a polyethylene-type resin, a polypropylene-type resin, and ABS resin.

  On the other hand, the inner side cover 30 has a plurality of reinforcing ribs 31 running along the vehicle width direction on the inner surface, the rigidity is strengthened, and the inner surface on the upper end side of the inner side cover 30 has a clip mounting seat 32. Are installed in two places on the left and right, the clip 33 mounted on the clip attachment seat 32 is attached to the roof panel side, and the hooks 34 are formed at two places on the left and right of the proximity of the clip attachment seat 32. The hook 34 includes a box-shaped hook body 34a and leg portions 34b that support the hook body 34a. The inner side cover 30 is also composed of an injection-molded body of a general-purpose synthetic resin such as polyethylene resin, polypropylene resin, ABS resin, etc., like the outer side cover 20. About the junction part with 30, as shown in FIG. 4, it has joined so that both junction parts may become a substantially flush state.

  Here, a separable locking structure is employed at the joint between the outer side cover 20 and the inner side cover 30. That is, the locking claws 24 are formed at appropriate pitch intervals along the joining edge portion of the outer side cover 20, and the engaging recess portion 35 is provided at the joining edge portion of the inner side cover 30 corresponding to this. The engagement between the outer cover 20 and the inner cover 30 is achieved by the engaging action of the claw 24 and the locking recess 35.

  In the present invention, in order to facilitate the smooth operation of the curtain airbag 8, the set position of the joining line L between the outer cover 20 and the inner cover 30 is biased toward the indoor side, and the side door A feature is that the distance d between the indoor corner portion 2a (3a) and the joining line L at the upper ends of the second and third ends is set small.

  In order to keep the distance d in the figure small, the joining line L is set close to the product surface of the inner side cover 30 or the position of the indoor side corner 2a (3a) at the upper end of the side door 2 (3) is set. It is conceivable to shift to the outside of the car.

  Furthermore, the inner side cover 30 is attached to the roof panel 4 through a bracket 40 which is fixed to the roof panel 4 by welding. That is, as shown in FIG. 3, the bracket 40 is welded to the roof panel 4 by welding the mounting flanges 41 at both ends, and the clip 33 attached to the clip mounting seat 32 of the inner side cover 30 is attached. An attachment hole 42 for fitting is formed, and a locking hole 43 for locking the hook 34 is opened at a position adjacent to the mounting hole 42. The locking hole 43 is connected to a wide insertion portion 43a for inserting the hook main body 34a of the hook 34 and a narrow locking portion 43b for preventing the hook main body 34a from coming off. It is established in a stepped hole.

  Therefore, in order to attach the inner side cover 30 to the bracket 40, the hook main body 34a of the hook 34 is passed through the insertion portion 43a of the locking hole 43 of the bracket 40, and then the inner side cover 30 in the direction of arrow A in FIG. Is moved so that the hook main body 34 a of the hook 34 is positioned at the locking portion 43 b of the locking hole 43. At this time, the clip 33 mounted on the clip mounting seat 32 is at a position corresponding to the mounting hole 42 of the bracket 40.

  At this position, if the inner side cover 30 is pushed into the bracket 40 side, the clip 33 fits into the mounting hole 42 of the bracket 40, so that the inner side cover 30 can be easily attached to the bracket 40. it can. Further, as shown in FIG. 4, the bracket 40 is provided with a contact portion 44 that contacts the back surface of the roof trim 9, and a rotation restricting portion 45 is bent at a tip portion extending from the contact portion 44. It is formed in a shape.

  Therefore, in the state where the cover body 10 is attached to the roof panel 4 side so as to cover the striker 5, as shown in FIG. 4, the outer side cover 20 having the opening 21 for exposing the striker 5 to the outside and the curtain Since the inner side cover 30 that covers the indoor surface side of the air bag 8 has a two-part structure, the inner side cover 30 is detachably attached to the bracket 40 that is welded and fixed to the roof panel 4. For example, when performing fine adjustment work of the striker 5, if the inner side cover 30 is pulled toward the front side toward the indoor side and further pulled in the front side while being slid in the left-right direction, the inner side cover can be easily 30 can be removed, and fine adjustment operations such as position adjustment of the striker 5 can be easily performed. Further, the terminal 9a of the roof trim 9 and the inner side cover 30 become sticky by sandwiching the terminal 9a of the roof trim 9 between the contact portion 44 formed on the bracket 40 and the upper end 30a of the inner side cover 30. There is an advantage that the mounting stability is excellent.

  According to the cover structure according to the present invention, for example, when the curtain airbag 8 is operated by detection of a sensor (not shown), such as when the vehicle crashes or rolls over, first, the inner side of the inner cover 30 is illustrated. 5, a stress is applied in the direction of arrow P1, and due to the load of the stress, the joint portion of the outer side cover 20 and the inner side cover 30 is pressed from the inner surface side toward the upper end surface side of the side door 2 (3), The engagement between the locking claw 24 of the side cover 20 and the locking recess 35 of the inner side cover 30 is released, and the outer side cover 20 and the inner side cover 30 are separated.

  Then, after the two covers 20 and 30 are separated, the clip 33 of the inner cover 30 can be easily removed from the mounting hole 42 of the bracket 40 with respect to the continuing deployment operation of the curtain airbag 8 as shown in FIG. The upper side of the inner side cover 30 moves to the indoor side until the hook main body 34a of the hook 34 comes into contact with the back surface of the bracket 40, and the upper side of the inner side cover 30 is used as a fulcrum. The lower end side is deployed toward the indoor side.

  At this time, the joint edge portion of the inner side cover 30 rotates in a swiveling manner, but the joint edge portion of the inner side cover 30 constituting a part of the joint line L is a chamber at the upper end of the side door 2 (3). In order to avoid interference with the inner corner portion 2a (3a), the unfolding operation is performed along a rotation locus as indicated by an arrow P2 in FIG. As a function of the hook 34, the leg portion 34 b passes through the locking portion 43 b of the locking hole 43, but the hook body 34 a is locked to the locking portion 43 b, so that the inner side cover 30 is surely removed. Can be prevented.

  Further, the inner side cover 30 is rotated in the clockwise direction in FIG. 6 with the lower end side (joining edge) of the inner side cover 30 as a base point by the deployment operation of the curtain airbag 8 with the hook body 34a of the hook 34 as a base point. However, since the rotation restricting portion 45 is set at the tip portion of the bracket 40, the upper end 30a of the inner side cover 30 abuts against the rotation restricting portion 45, functions as a stopper, and restricts further rotation operation. Thus, the inner side cover 30 does not protrude excessively indoors.

  Thus, according to the cover structure of the door lock mechanism according to the present invention, the position of the joining line L between the outer side cover 20 and the inner side cover 30 is biased toward the indoor side, or the upper ends of the side doors 2 and 3. By shifting the indoor corner portions 2a and 3a to the outside of the vehicle, the deployment direction of the inner cover 30 is changed before and after the separation of the covers 20 and 30 when the curtain airbag 8 is deployed. Interference with the side doors 2 and 3 can be reliably avoided, and a smooth deployment operation of the curtain airbag 8 can be expected.

  As described above, the cover structure of the door lock mechanism described in the embodiment adopts a two-part structure of the outer cover 20 and the inner cover 30 as the structure of the cover body 10, and the inner cover 30 is attached to the roof panel 4. The clip 33 and the hook 34 are set on the inner surface on the upper end side of the inner side cover 30 so that the inner side cover 30 can be attached and detached. However, as a clip structure, a clip mounting seat 32 is formed on the back surface of the inner side cover 30 and is separated. The clip 33 may be mounted and attached to the bracket 40, but a clip piece may be provided integrally with the inner side cover 30. Further, as the structure of the hook 34, the number of hooks 34, the shape of the hook main body 34a, and the like may be appropriately changed.

It is an external view which shows the vehicle to which the cover structure of the door lock mechanism which concerns on this invention is applied. It is the perspective view which looked at the cover body used for the cover structure of the door lock mechanism which concerns on this invention from the room inner side. It is explanatory drawing which shows the relationship between the cover body used for the cover structure of the door lock mechanism which concerns on this invention, and a bracket. It is sectional drawing which shows the structure of the cover body used for the cover structure of the door lock mechanism which concerns on this invention. It is sectional drawing which shows the state at the time of curtain type airbag operation | movement in the cover structure of the door lock mechanism which concerns on this invention. It is sectional drawing which shows the state at the time of curtain type airbag operation | movement in the cover structure of the door lock mechanism which concerns on this invention. It is an external view which shows the vehicle body provided with the double door side door. It is explanatory drawing which shows the structure of the prior art example of the door lock mechanism in a double door side door. It is sectional drawing which shows the conventional cover body which covers the striker of a door lock mechanism. It is sectional drawing which shows the conventional cover body which covers the striker of a door lock mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Front door 3 Rear door 4 Roof panel 5 Striker 6 Latch 8 Curtain type airbag 9 Roof trim 9a Terminal 10 Cover body 20 Outer side cover 21 Opening 22 Clip mounting seat 23 Iron clip 24 Locking claw 30 Inner side cover 31 Reinforcement Rib 32 Clip mounting seat 33 Clip 34 Hook 34a Hook body 34b Leg 35 Locking recess 40 Bracket 41 Mounting flange 42 Mounting hole 43 Locking hole 43a Insertion part 43b Locking part 44 Contact part 45 Rotation restricting part L Joining line Deployment direction before P1 separation P2 Deployment direction after separation

Claims (2)

A curtain-type airbag (8) is installed on the roof side, and the side doors (2, 3) are opened and closed in a double-split manner. The striker (5) in the door lock mechanism of the side doors (2, 3) is the roof. In the cover structure of the door lock mechanism that is fixed to the panel (4) and the mounting portion of the striker (5) is covered with the cover body (10),
The cover body (10) covers the outer side cover (20) having an opening (21) that penetrates the striker (5) and the interior side of the curtain airbag (8), and the curtain airbag ( 8) and a two-part body comprising an outer side cover (20) and an inner side cover (30) that are separably joined based on a joining line (L) set along the side of the vehicle. The outer cover (20) and the inner cover (30) are independently attached to the roof panel (4), and the inner cover (30) is detachably attached to the roof panel (4). When the joint line (L) of both covers (20, 30) is set so as to be offset toward the vehicle interior side, when the curtain airbag (8) is deployed, the side door (2, ) Interior side corner portion of the upper end (2a, 3a) and a cover structure of a door locking mechanism, characterized in that to avoid interference. The cover structure of the door lock mechanism according to claim 1, wherein the interior corners (2a, 3a) at the upper end of the side doors (2, 3) are biased toward the vehicle exterior.

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