JP4353366B2 - Cover structure of door lock mechanism - Google Patents

Description

  The present invention relates to a cover structure of a door lock mechanism in a vehicle in which a curtain-type airbag is provided on a roof side portion of a vehicle and a side door (a front door and a rear door) has a door that can be opened and closed in a double-split manner. The present invention relates to a cover structure of a door lock mechanism that can easily perform fine adjustment work of a striker in a lock mechanism and that enables smooth operation of the airbag when the 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 vehicle exterior when the vehicle interior and 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 shown in FIGS. Is set to

  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 locking mechanism for the double doors 2 and 3, the fine adjustment of the striker 5 with respect to the latch 6 of the side doors 2 and 3 is performed. When performing the adjustment, the cover body 7 is removed every time the adjustment work is performed, and the fine adjustment is performed. Therefore, it is pointed out that the fine adjustment work of the door lock mechanism is troublesome.

  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 can easily perform fine adjustment work of the mechanism and that enables smooth deployment operation of a curtain type airbag at the time of a vehicle side collision or rollover.

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. In addition, 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, the indoor surface side of the curtain airbag, The outer cover and the inner cover are divided into two parts: an outer cover and an inner cover that is detachably joined based on a joining line set below the curtain airbag or along the side of the vehicle. with the side cover is made of injection-molded article of a synthetic resin, a roof independently Attached to panel, characterized in that at least the inner side cover is removably attached to the roof panel.

  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. The inner side cover and the outer side cover are joined to each other in a separable manner based on a joining line set below the curtain type airbag or along the side of the vehicle in a state of being independently attached to the roof panel. . Further, the outer cover is provided with an opening for exposing the tip of the striker to the outside of the vehicle, and in particular, the inner cover is detachably attached to the roof panel.

  According to the present invention, at the time of fine adjustment of the striker in the door lock mechanism, the striker mounting portion can be exposed by simply removing the inner side cover from the roof panel, and the fine adjustment work of the door lock mechanism is easily performed. be able to. Furthermore, when the curtain airbag is deployed, such as when the vehicle crashes or rolls over, the inner cover is separated from the outer cover by the stress applied to the inner cover. The curtain-type airbag can be smoothly deployed by moving it out of the range.

  Next, in a preferred embodiment of the present invention, the inner side cover is set so that the clip mounting seat and the hook project to the roof panel side on the inner surface of the upper end side, and the clip mounted on the clip mounting seat is roofed. The inner cover is attached to the roof panel by fitting it into the bracket mounting hole fixed to the panel, while the hook leg is inserted into the bracket locking hole. The hook main body of the hook is locked in the locking hole, so that the inner side cover is prevented from dropping out to the vehicle interior side.

  Here, when setting the clip and hook on the inner surface of the upper end side of the inner side cover, the clip mounting seat is integrally formed on the inner surface of the upper end side of the inner side cover, and the clip is attached to the clip mounting seat, or You may make it form a clip integrally with an inner side cover. On the other hand, the bracket fixed to the roof panel has a mounting flange fixed to the roof panel by welding, and the bracket is provided with a mounting hole for detachably fitting the clip and a locking hole for locking the hook. . The locking hole for locking the hook is preferably a step-shaped locking hole in which a wide insertion portion for inserting the hook main body and a narrow locking portion for preventing the hook main body from being detached are connected.

  Therefore, according to this embodiment, the inner side cover with respect to the bracket of the roof panel, after inserting the hook into the insertion portion in the locking hole of the bracket, slides the inner side cover in the left-right direction, and the hook falls off. The inner side cover can be easily attached to the roof panel side by inserting the clip into the mounting hole of the bracket and fitting it in a state where it is positioned at the locking portion where there is no such thing.

  And to remove the inner side cover, such as when adjusting the striker in the door lock mechanism, simply remove the clip from the bracket mounting hole, and then slide it left and right to remove the hook from the locking hole. The inner cover can be removed from the roof panel side.

  In addition, with the inner cover attached to the bracket, if the curtain airbag is deployed, the clip will come off the bracket mounting hole, and the hook body will be the retaining part of the bracket. The inner cover protrudes indoors by retracting a predetermined stroke until it hits, but the hook body is locked to the locking portion of the locking hole, so that the inner cover can be prevented from falling off to the indoor side. .

  Next, in a preferred embodiment of the present invention, the bracket is provided with a contact portion that contacts the end portion of the roof trim, and the end portion of the roof trim is formed by the upper end of the inner side cover and the contact portion of the bracket. It is characterized by being sandwiched.

  According to this embodiment, when the cover body is attached to the roof panel, the end of the roof trim can be sandwiched between the upper end of the inner side cover and the contact portion of the bracket. The sticking of the trim terminal can be prevented.

  Furthermore, in another preferred embodiment of the present invention, the bracket is in contact with the upper end of the inner side cover that is pressed and rotated in a swiveling manner when the curtain airbag is deployed, so that the inner side cover rotates. It is characterized in that a rotation restricting portion for restricting the rotation is set.

  According to this embodiment, when the curtain airbag is deployed, the inner cover is removed from the roof panel side by removing the clip from the mounting hole of the bracket, and the lower end side of the inner cover is placed indoors. However, at this time, since the upper end of the inner side cover abuts against the rotation restricting portion provided on the bracket, the rotational operation of the inner side cover is restricted.

  As described above, according to the cover structure of the door lock mechanism according to the present invention, both covers that cover the striker in the door lock mechanism are detachably joined, and the cover body includes the outer cover and the inner cover. Since it is composed of two parts and at least the inner cover is detachably attached to the roof panel, fine adjustment can be easily performed by removing only the inner cover when adjusting the door lock mechanism. The workability in the fine adjustment work can be improved.

  Furthermore, when the curtain airbag operates, such as when the vehicle collides or rolls over, the inner cover separates from the outer cover and can easily be removed from the roof panel, preventing the curtain airbag from being deployed. Therefore, there is an effect that the smooth operation of the curtain airbag can be secured.

  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 6 is provided, and a roof side portion of the roof panel 4 is equipped with a curtain-type airbag 8.

  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 set along the downward or vehicle side.

  First, the outer side cover 20 includes an opening 21 for exposing to the outside of the striker 5, and clip mounting seats 22 for fixing to the roof panel 4 are erected at two positions on the left and right sides. Then, the outer cover 20 is attached to the roof panel 4 by being fixed to the attachment hole 4 a 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.

  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 fine adjustment of the striker 5 is performed, the inner side cover 30 can be easily drawn by pulling the inner side cover 30 toward the front side toward the indoor side and further pulling it toward the front side while sliding in the left-right direction. Can be removed, and fine adjustment work 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.

  Then, according to the cover structure according to the present invention, for example, when the curtain airbag 8 is deployed, such as when the vehicle side crashes or rolls over, the direction indicated by the arrow F in FIG. Stress is applied. Due to the load of this stress F, the upper side of the inner side cover 30 remains until the clip 33 of the inner side cover 30 is easily removed from the mounting hole 42 of the bracket 40 and the hook body 34a of the hook 34 abuts against the back surface of the bracket 40. While moving to the indoor side, since the lower end side of the inner side cover 30 is easily separated from the outer side cover 20, the inner side cover 30 rotates in a swiveling manner along the rotation locus shown by the dotted line in FIG. Thus, the deployment operation of the curtain airbag 8 is not hindered.

  At this time, 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, as shown in FIG. 6, the inner side cover 30 is rotated clockwise in FIG. 6 with the hook body 34 a of the hook 34 as a base point by the deployment operation of the curtain airbag 8. Although the rotation restricting portion 45 is set at the front end portion of the bracket 40, the upper end 30a of the inner side cover 30 comes into contact with the rotation restricting portion 45, and further rotation operation is restricted. 30 does not protrude excessively indoors.

  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 to and detached from the inner side cover 30. 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.

1 is an external view of a vehicle to which a cover structure of a door lock mechanism according to the present 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 state which attached the cover body used for the cover structure of the door lock mechanism which concerns on this invention to the roof panel side. 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 of the vehicle body provided with a 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 30 Inner side cover 31 Reinforcement rib 32 Clip attachment Seat 33 Clip 34 Hook 34a Hook body 34b Leg 40 Bracket 41 Mounting flange 42 Mounting hole 43 Locking hole 43a Insertion part 43b Locking part 44 Contact part 45 Rotation restricting part

Claims (4)

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 interior side of the outer cover (20) having an opening (21) that penetrates the striker (5) and the curtain airbag (8), and the curtain airbag (8). ) Or an inner side cover (30) that is detachably joined based on a joining line that is set along the vehicle side or the vehicle side, and the outer side The cover (20) and the inner side cover (30) are made of a synthetic resin injection-molded body and are independently attached to the roof panel (4). At least the inner side cover (30) is attached to the roof panel (4). The door lock mechanism cover structure is characterized by being detachably attached.   The inner side cover (30) is set so that the clip mounting seat (32) and the hook (34) protrude toward the roof panel (4) on the inner surface on the upper end side, and is attached to the clip mounting seat (32). By fitting the clip (33) into the mounting hole (42) of the bracket (40) fixed to the roof panel (4), the inner side cover (30) is attached to the roof panel (4) side while the hook ( 34) is inserted into the locking hole (43) of the bracket (40), and when the curtain airbag (8) is deployed, the hook body (34a) of the hook (34) is The cover structure of the door lock mechanism according to claim 1, wherein the inner side cover (30) is prevented from falling off to the vehicle interior side by being locked in the hole (43).   The bracket (40) is provided with an abutting portion (44) that abuts on the end portion (9a) of the roof trim (9), and the upper end (30a) of the inner side cover (30) is brought into contact with the bracket (40). The cover structure for a door lock mechanism according to claim 2, wherein the end portion (9a) of the roof trim (9) is sandwiched between the contact portion (44). The bracket (40) is in contact with the upper end (30a) of the inner side cover (30) that is pressed and rotates in a swiveling manner when the curtain airbag (8) is deployed, and the inner side cover (30) The door lock mechanism cover structure according to claim 2 or 3, wherein a rotation restricting portion (45) for restricting the rotation of the door lock mechanism is set.

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