JP5907427B2 - Door trim mounting structure - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a door trim mounting structure for interior of a vehicle door panel.

Conventionally, a side door that opens and closes an opening through which an occupant gets on and off is provided on a side surface of a vehicle body. On the vehicle interior side of the door panel of the side door, a door trim as an interior part is attached in order to ensure the beauty of the vehicle interior and comfortable living.
Various mechanisms and devices for absorbing impact energy at the time of a side collision are provided in the interior of the vehicle. Many of these mechanisms and devices are devised by adding a shock absorbing member (see, for example, Patent Document 1) or providing an absorbing structure with a complicated part shape such as a door trim. (For example, refer to Patent Document 2).

JP 2011-230603 A JP 2009-40148 A

However, adding a component or adding a new complex-shaped structure like the conventional shock energy absorbing mechanism described above also actually affects the behavior of peripheral components during a side impact. Therefore, it is necessary to provide a new reinforcing structure, which is not an effective measure from the viewpoint of weight and cost.
For this reason, there is a need for a measure that effectively absorbs the impact load applied during a side collision and that is effective in maintaining the appearance quality without being more complicated than the current component shape.

  The present invention has been made in view of such a situation, and an object thereof is to efficiently reduce the impact load applied at the time of a side collision without adding new parts or forming a new complicated shape. An object of the present invention is to provide a door trim mounting structure that can absorb and disperse and improve the appearance quality in a state where the position is regulated by a strong mounting strength.

  In order to solve the above-described problems of the prior art, the present invention provides a door trim mounting structure that is mounted on the vehicle interior side of the door panel and that interiors the vehicle interior side of the door panel, and an armrest is provided on the vertical wall surface of the door trim. An armrest installation part for installation from above is provided to project toward the vehicle interior side, and a plurality of openings are provided on the upper surface of the armrest installation part, and a bridging part that bridges these openings is provided. A fastening hole to the door panel of the door trim is provided in the vertical wall surface of the door trim, and a locking hole to the door trim of the armrest is provided in the bridging portion, and the fastening hole is provided. And the locking hole are connected to each other through a notch at a bent portion between the vertical wall surface of the door trim and the bridging portion.

  In the present invention, the fastening hole is provided in an upper portion of the locking hole.

  In the present invention, the cutout located in the vicinity of the bent portion is formed in a shape wider than a fastening part inserted into the fastening hole when the door trim is fastened to the door panel.

  Furthermore, in the present invention, a locking piece that engages with the locking hole of the bridging portion is provided on the back side of the armrest, and the upper surface of the locking piece is inclined toward the vehicle interior side. It is formed in a warped shape.

  As described above, the door trim mounting structure according to the present invention is a door trim that is mounted on the vehicle interior side of the door panel and that interiors the vehicle interior side of the door panel, and an armrest is installed on the vertical wall surface of the door trim from above. An armrest installation part for projecting toward the vehicle interior side, and a plurality of openings are provided on the upper surface of the armrest installation part, and a bridging part for bridging these openings is provided, The vertical wall surface of the door trim is provided with a fastening hole for the door trim to the door panel, and the bridging portion is provided with a locking hole for the armrest to the door trim. The stop hole is connected through a notch in the bent portion between the vertical wall surface of the door trim and the bridging portion. It is possible to make the structure easy to break by concentrating the impact load on the bent part, and it is not necessary to add new parts or to form a door trim etc. in a complicated shape, efficiently absorbing the impact load Can be dispersed and diverged. In addition, in the mounting structure of the present invention, the locking point between the armrest and the door trim is set in the vicinity of the fastening point between the door trim and the door panel, so that the strong fixation with the door panel is reflected in the mating part between the parts. The door trim and the armrest can be attached in a state where the position is restricted by the strong attachment strength, and the appearance quality can be improved by maintaining the good appearance of the door trim.

  In the mounting structure of the present invention, the fastening hole is provided at an upper part of the locking hole. It is possible to obtain a structure that induces bending and the armrest rotates around a locking portion on the vehicle interior side and suppresses the vehicle exterior outer side end portion of the upper surface of the armrest toward the occupant side due to the impact load. it can.

  Furthermore, in the mounting structure of the present invention, the notch located in the vicinity of the bent portion is formed in a wider shape than a fastening component inserted into the fastening hole when the door trim is fastened to the door panel. Therefore, it is possible to remove the door trim from the door panel while leaving the fastening part of the door trim, and it is possible to improve the detachability at the time of replacement or maintenance of the door trim. Moreover, in the mounting structure of the present invention, the bent portion between the vertical wall surface of the door trim and the bridging portion is further weakened by the wide notch, so that the foldability of the bent portion can be increased. The impact load at the time of a collision can be absorbed more effectively.

  Further, in the mounting structure of the present invention, a locking piece that engages with the locking hole of the bridging portion is provided on the back surface side of the armrest, and the upper side of the back surface of the locking piece is on the vehicle interior side. Because it is formed in a warped shape that inclines toward the armrest, it becomes possible to abut the warped-shaped locking piece against the vertical wall surface of the door trim when an impact load is applied to the armrest during a side collision, and the armrest becomes the door trim. Can be prevented from coming off. Moreover, in the mounting structure of the present invention, when the armrest is assembled, an assembly guide function can be added to the warped locking piece, and the assembly workability can be improved.

It is the perspective view which looked at the door trim to which the attachment structure which concerns on embodiment of this invention is applied from the vehicle interior side. It is the expansion perspective view which looked at the X section in FIG. 1 from diagonally upward. In FIG. 1, in order to demonstrate the arrangement | positioning relationship between the fastening screw inserted in the fastening hole of a door trim, the latching hole provided in the bridging part of an armrest installation part, and a notch, it is the perspective view seen from diagonally upward. It is sectional drawing which shows a movement of the latching piece of an armrest when the impact load at the time of a side collision is applied with respect to a door trim in the state in which the armrest is assembled | attached to the armrest installation part in FIG. FIG. 5 is a cross-sectional view showing the movement of a locking piece or the like located on the bent portion side in the armrest in the state of FIG. 4.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
1 to 5 show a door trim mounting structure according to an embodiment of the present invention. 4 and 5, the arrow O indicates the direction outside the vehicle compartment, and the arrow R indicates the direction inside the vehicle interior.

  As shown in FIGS. 1 to 5, the door trim 1 to which the mounting structure according to the embodiment of the present invention is applied covers the vehicle interior side of the door panel 2 in order to ensure aesthetics and comfortable living in the vehicle interior. The door trim 1 is provided with a storage space, a space for storing switches (for example, a window opener switch), and the like. Moreover, the door panel 2 of this embodiment is a door inner panel which comprises the side door which opens and closes the door opening part provided in the vehicle body side surface of the vehicle.

The door trim 1 of this embodiment is comprised from the trim board 11 formed using the synthetic resin material of the magnitude | size corresponding to the door panel 2, as shown in FIGS. In the middle part of the vertical wall surface 11a extending in the vehicle vertical direction, an armrest installation part 12 for installing the armrest 3 shown in FIGS. 4 and 5 from above is directed toward the vehicle interior side in the vehicle width direction from the vertical wall surface 11a. It protrudes in a shelf shape.
Further, a fastening hole 13 to the door panel 2 of the door trim 1 is provided at a position near the armrest installation portion 12 of the vertical wall surface 11 a of the trim board 11, and the trim board 11 is attached to the door panel 2 in the fastening hole 13. A shaft portion 14a of a fastening screw (fastening component) 14 used when fastened to is left inserted with the head portion 14b remaining. A through hole 21 through which the shaft portion 14a of the fastening screw 14 passes is formed in the door panel 2 so as to correspond to the fastening hole 13, and the shaft of the fastening screw 14 is provided on the back side (the vehicle outer side) of the door panel 2. A welding nut 22 that is screwed with the portion 14 a is fixed at a position corresponding to the through hole 21.

  On the other hand, the upper surface of the armrest installation part 12 is formed in a horizontal plane having a predetermined width corresponding to the size of the armrest 3 and is provided extending along the vehicle front-rear direction. And on the upper surface of the armrest installation part 12, two opening parts 15a and 15b opened leaving a peripheral part are provided at intervals in the vehicle front-rear direction for storage space and switches. Further, a bridging portion 16 is provided on the upper surface of the armrest installation portion 12 so as to avoid the openings 15a and 15b.

  The bridging portion 16 extends horizontally along the vehicle width direction and is provided over the entire width of the upper surface of the armrest installation portion 12. A boundary portion between the vertical wall surface 11 a of the trim board 11 and the bridging portion 16 is a bent portion 17. It has become. Further, a locking hole 18 to the trim board 11 of the armrest 3 is provided at a location near the vertical wall surface 11 a of the trim board 11 in the bridging portion 16 corresponding to the fastening hole 13 on the vertical wall surface 11 a side of the trim board 11. The fastening hole 13 and the locking hole 18 are connected to each other through a notch 19 at a bent portion 17 between the vertical wall surface 11 a of the trim board 11 and the bridge portion 16. On the other hand, as shown in FIG. 2 and FIG. 4, the armrest 3 is located at the edge of the armrest installation portion 12 on the vehicle interior side and on the same extension line in the vehicle width direction as the locking hole 18 of the bridge portion 16. A locking hole 18a for the trim board 11 is provided separately from the locking hole 18, and the locking hole 18a has a length in the vehicle front-rear direction larger than that of the locking hole 18, and the locking hole It is possible to engage a larger locking piece than a later-described locking piece to be engaged with 18.

  As a result, when the door trim 1 receives a side impact impact load, the impact load can be diverged at the bent portion 17 of the bridging portion 16. Originally, the fastening portion of the trim board 11 to the door panel 2 was stretched when receiving an impact load (especially the impact load at the time of a side impact), and the load was easily concentrated. By extending the notch 19 from the fastening hole 13 of the easy fastening portion across the bent portion 17, the load is concentrated on the bent portion 17 to establish a generation mechanism of the fold and to clarify the load application method. The structure is easy to break. In addition, since the engagement point portion of the armrest 3 with the trim board 11 is set in the vicinity of the fastening point portion of the trim board 11 with the door panel 2, the rigid fixing with the door panel 2 is made to match the parts. It is possible to reflect the above, and it is configured to maintain a good appearance whose position is regulated with a large mounting strength.

Further, the fastening hole 13 of the vertical wall surface 11 a of the trim board 11 is provided at an upper part of the locking hole 18 of the bridging portion 16 in the armrest installation portion 12. In this arrangement relationship, the notch 19 and the locking hole 18 continuously extend below the fastening hole 13, and the head 14 b of the fastening screw 14 can move below the trim board 11. A possible gap will be formed. As a result, when an impact load is applied due to a side collision or the like, the outer shaft portion 14a of the fastening screw 14 moves upward and the vehicle interior side end surface of the armrest 3 is directed toward the occupant side. The vehicle exterior side end portion of the upper surface portion 3a (described later) of the armrest 3 is configured to be prevented from facing toward the occupant side.
If the parts such as the armrest 3 come off due to the impact load at the time of a side collision, a big problem will occur because the end face of the detached part or the end face of the remaining part faces toward the occupant side. Therefore, by adopting such a configuration, bending of the locking portion of the armrest 3 outside the vehicle located far from the occupant is induced, and the armrest 3 rotates around the locking portion on the vehicle interior side, Finally, it contacts the vertical wall surface 11a ahead of the bent portion 17 to prevent the component from coming off, and reduces the possibility that the end surface of the component will face the occupant side with respect to the movement to come off.

As shown in FIGS. 2 to 5, the notch 19 of the present embodiment is continuously provided from the fastening hole 13 through the bent portion 17 to the locking hole 18. Moreover, of the notches 19, the notch portion 19 a located in the vicinity of the bent portion 17 has a wide rectangular shape larger than the diameter of the head 14 b of the fastening screw 14 inserted into the fastening hole 13 of the vertical wall surface 11 a, That is, it is formed in a rectangular shape having a long length in the vehicle front-rear direction.
By providing the cutout portion 19a set to such a size, the detachability of the trim board 11 at the time of replacement or maintenance of the door trim 1 is enhanced. This is because the fastening hole 13 and the locking hole 18 are arranged in a vertical positional relationship, so that the cutout 19 and the cutout portion 19a are left with the fastening screw 14 of the trim board 11 constituting the door trim 1 left. This is because the trim board 11 can be moved upward and the trim board 11 can be removed from the door panel 2. In addition, the provision of the notched portion 19a makes it easier for the bending portion 17 to bend at the time of a side collision and makes it brittle, so that it is possible to enhance the impact load absorption effect.

  On the other hand, as shown in FIGS. 4 and 5, the armrest 3 of the present embodiment moves downward except for the substantially flat upper surface portion 3 a suitable for placing the elbow of the occupant and the vertical wall surface 11 a side of the trim board 11. The cross section along the vehicle width direction is formed in a substantially L shape by the side surface portion 3b that is bent and placed on the upper surface of the peripheral portion of the armrest installation portion 12. Further, on the back surface side of the upper surface portion 3 a of the armrest 3, an engagement piece 31 that engages with the engagement hole 18 of the bridging portion 16 and an engagement hole 18 a of the armrest installation portion 12 at the edge on the vehicle interior side are engaged. The locking piece 32 is provided with an interval in the vehicle width direction.

These locking pieces 31 and 32 are formed in a vertically long plate-like body extending downward from the back surface side of the upper surface portion 3a, and the locking pieces 31 on the outside of the passenger compartment are engaged with the locking holes 18, Corresponding to the size of 18a, it is formed smaller than the locking piece 32 on the vehicle interior side. In addition, the front end portion 31a of the locking piece 31 outside the vehicle compartment is bent upward slightly toward the vertical wall surface 11a side of the trim board 11 so as to engage with the locking hole 18, so that the locking on the vehicle interior side is achieved. The tip portion 32a of the piece 32 is bent at a substantially right angle toward the side surface portion 3b so as to engage with the locking hole 18a. That is, the distal end portion 31 a of the locking piece 31 and the distal end portion 32 a of the locking piece 32 are bent to the opposite sides, so that the armrest 3 is not easily detached from the armrest installation portion 12.
Further, the back surfaces of the locking pieces 31 and 32 are formed in a warped shape in which the upper part is inclined toward the vehicle interior side. Thus, by making the back surface of the locking pieces 31 and 32 into a warped shape, it is configured to firmly prevent the armrest 3 from being detached from the armrest installation portion 12 at the time of a side collision. In particular, the front end portion 31a of the locking piece 31 having a warped back surface is brought into contact with the vertical wall surface 11a of the trim board 11, thereby preventing the armrest 3 from coming off from the armrest installation portion 12 at the time of a side collision. Yes. In addition, since the warped shapes of the locking pieces 31 and 32 lead to providing a guide function when the armrest 3 is assembled to the armrest installation portion 12, it is possible to have an effect in improving the assembling property of the armrest 3. It has become.

Next, in the mounting structure of the door trim 1 according to the embodiment of the present invention, an operation when an impact load from the outside of the passenger compartment toward the inside of the passenger compartment is applied to the door trim 1 via the door panel 2 at the time of a side collision will be described.
When an impact load toward the vehicle interior side is applied to the trim board 11 and the armrest 3 from the state shown by the solid line in FIGS. 4 and 5, the head 14 b of the fastening screw 14 is moved as shown by the chain line in FIGS. 4 and 5. It becomes possible to move to the lower side of the trim board 11 through the notch 19 of the vertical wall surface 11a, and the outer shaft portion 14a of the fastening screw 14 moves upward. At the same time, the armrest 3 rotates counterclockwise around a locking portion between the locking piece 32 on the vehicle interior side of the bridging portion 16 and the locking hole 18a, and engages with the locking hole 18 of the bridging portion 16. The front end portion 31 a of the engaging piece 31 outside the vehicle compartment that has been joined comes into contact with the vertical wall surface 11 a of the trim board 11 positioned ahead of the bent portion 17. In this state, the locking pieces 31 and 32 of the armrest 3 are bent, the bent portion 17 in the vicinity of the notch portion 19a is bent and the impact load is absorbed and dispersed, and the armrest 3 is not detached from the armrest installation portion 12. Even if the end surface on the vehicle interior side of the armrest 3 is directed toward the occupant side, the outward end of the vehicle interior of the upper surface portion 3a of the armrest 3 is suppressed toward the occupant side.

As described above, in the door trim 1 mounting structure according to the embodiment of the present invention, the armrest installation portion 12 is provided to protrude toward the vehicle interior side on the vertical wall surface 11a of the trim board 11 constituting the door trim 1, and the armrest installation is performed. A bridging portion 16 that bridges the plurality of openings 15 a and 15 b is provided on the upper surface of the portion 12, a fastening hole 13 for the door panel 2 of the trim board 11 is provided in the vertical wall surface 11 a of the trim board 11, and A locking hole 18 for the armrest 3 to the trim board 11 is provided, and the fastening hole 13 and the locking hole 18 are provided via a notch 19 at a bent portion 17 between the vertical wall surface 11 a of the trim board 11 and the bridging portion 16. Because of the connection, the impact load at the time of side collision applied through the door panel 2 is concentrated on the bent portion 17 to make it easy to break, and new additional parts are used. Without and without complicating the shape of such trim board 11, the absorption and dispersion of the impact load can be effectively performed.
Further, in the mounting structure of the present invention, since the engaging portion between the armrest 3 and the trim board 11 is set in the vicinity of the fastening portion between the trim board 11 and the door panel 2, the trim board 11 provided with the armrest 3 is positioned. It can be firmly attached to the door panel 2 in a restricted state, and a good appearance of the door trim 1 can be maintained.

While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, in the embodiment described above, the two openings 15a and 15b are provided on the upper surface of the armrest installation part 12, but three or more openings may be provided according to the applicable vehicle type. In this case, two or more bridging portions are provided.

DESCRIPTION OF SYMBOLS 1 Door trim 2 Door panel 3 Armrest 3a Upper surface part 3b Side surface part 11 Trim board 11a Vertical wall surface 12 Armrest installation part 13 Fastening hole 14 Fastening screw (fastening part)
15a, 15b Opening part 16 Bridge part 17 Bending part 18, 18a Locking hole 19 Notch 19a Notch part 21 Through hole 22 Welding nut 31 Locking piece 31a Tip part 32 Locking piece 32a Tip part

Claims (4)

In the door trim mounting structure that is mounted on the vehicle interior side of the door panel and that interiors the vehicle interior side of the door panel,
On the vertical wall surface of the door trim, an armrest installation part for installing the armrest from above is provided to protrude toward the vehicle interior side,
A plurality of openings are provided on the upper surface of the armrest installation part, and a bridging part for bridging these openings is provided,
The vertical wall of the door trim is provided with a fastening hole to the door panel of the door trim, while the bridging portion is provided with a locking hole to the door trim of the armrest,
The fastening structure of the door trim, wherein the fastening hole and the locking hole are connected via a notch at a bent portion between the vertical wall surface of the door trim and the bridging portion.   The door trim mounting structure according to claim 1, wherein the fastening hole is provided in an upper portion of the locking hole.   2. The cutout located in the vicinity of the bent portion is formed in a shape wider than a fastening part inserted into the fastening hole when the door trim is fastened to the door panel. Or the door trim attachment structure of 2. A locking piece that engages with the locking hole of the bridging portion is provided on the back surface side of the armrest, and the back surface of the locking piece is formed in a warped shape in which an upper portion is inclined toward the vehicle interior side. The door trim mounting structure according to any one of claims 1 to 3, wherein the door trim mounting structure is provided.

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