JP5235126B2 - Automotive interior parts - Google Patents

Description

  The present invention relates to interior parts for automobiles such as door trims, rear side trims, luggage side trims, and the like, which are mounted on the interior side of a side wall panel of a vehicle, and more particularly, to interior parts for automobiles having improved shock absorption performance in a side collision. .

  Normally, interior parts for automobiles such as door trims, rear side trims, and luggage side trims are installed on the interior side of the side wall panel of the vehicle to enhance the aesthetics of the interior of the vehicle and at the time of a side collision, etc. When an impact load is applied, the interior part itself is bent, deformed, or broken to absorb the impact load and reduce the load applied to the occupant.

  FIG. 8 shows a conventional door trim 1. The door trim 1 has various functional parts attached to a door trim main body 2 made of a general-purpose synthetic resin, such as a polypropylene resin, or a molded press molded body or an injection molded body. Configured. Specifically, the inside handle unit 1a is attached to a slightly front side of the middle part, and below it, an armrest support 3 is formed in the center of the door trim body 2 along the longitudinal direction of the vehicle. An armrest 4 and an escutcheon panel 1b are supported and fixed to the armrest support 3. Also, a door pocket 1c capable of storing equipment is provided below the armrest support portion 3, and a speaker grille 1d is formed on the front side of the door pocket 1c, either integrally with the door trim body 2 or separately. Yes.

  And the said armrest 4 is attached to the armrest support part 3 formed in the door trim main body 2 as shown in FIG. That is, a plurality of locking claws 4 a are formed on the back surface of the armrest 4 on the indoor side and the panel side, and are locked in the engagement holes 3 b provided corresponding to the upper surface 3 a of the armrest support portion 3. It is attached as shown in the figure by engaging the claw 4a. A conventional example in which the armrest 4 is attached to the door trim main body 2 by the locking claws 4a is described in Patent Document 1.

  Moreover, the installation site | part of the armrest 4 is an impact area where a passenger | crew's abdomen is easy to touch, and it is requested | required that the impact load from the outside should be absorbed effectively in this site | part at the time of a side collision. However, if the armrest support portion 3 is bent and deformed to the panel side to improve the side impact performance, the rigidity is reduced correspondingly and the support function of the armrest 4 is impaired. It was an urgent issue to achieve both impact absorption performance.

  By the way, recently, in order to improve the appearance design and to make the molding die equipment compact, the structure of the door trim main body 2 is constructed by assembling upper and lower divided bodies like a door trim upper 5 and a door trim lower 6. Is becoming mainstream. When the door trim main body 2 is composed of a door trim upper 5 and a door trim lower 6 which are upper and lower divided bodies, the lower surface of the door trim upper 5 is hidden by the door trim lower 6 as shown in FIGS. The door trim upper 5 and the door trim lower 6 are joined.

  As an attachment structure of the door trim upper 5 and the door trim lower 6, an opening 5a is opened in the door trim upper 5, and the upper edge 5b of the opening 5a functions as a locking portion. A locking plate 6c extending in the horizontal direction is integrated through a vertical wall-shaped flange 6b, and a locking claw 6d is provided at the leading end portion (panel side edge) of the locking plate 6c. Then, by engaging the locking claw 6d with the upper edge 5b of the opening 5a of the door trim upper 5, the assembly of the door trim upper 5 and the door trim lower 6 is completed as shown in FIG. And the armrest 4 is attached so that the assembly part mentioned above may be hidden with the armrest 4. FIG. The structure of a door trim composed of an upper and lower divided body of a door trim upper 5 and a door trim lower 6 is disclosed in Patent Document 2.

JP 09-175242 A

JP-A-11-115488

  Thus, in the automobile door trim 1 provided with the armrest 4, when the impact load is applied from the side of the vehicle, such as in the case of a side collision, the armrest 4 is bent and deformed so that the impact load can be effectively absorbed. 10 and 11, in particular, when an assembly structure of a door trim upper 5 and a door trim lower 6 is employed as the door trim main body 2, the door trim lower 6 is associated with the upper wall 6 a. Since there is a vertical wall-shaped flange 6b (indicated by hatching in FIG. 11) between the fixing plate 6c and the flange 6b, the flange 6b functions as a strong reinforcing rib, and the upper side of the door trim lower 6 is on the panel side. It is a great hindrance to bend and deform.

  The present invention has been made in view of such circumstances, and is an automotive interior part mounted on the interior surface side of a side wall panel of a vehicle, wherein a trim main body is constituted by a trim upper and a trim lower, and an armrest support portion An object of the present invention is to provide an automotive interior part having an improved shock absorbing performance by easily deforming and deforming the upper side of the trim lower to the side wall panel side at the joint between the trim upper and the trim lower.

  In order to solve the above problems, the present invention is an automotive interior part mounted on the interior side of a side wall panel of a vehicle, and a trim body in the automotive interior part is divided in the vertical direction and is near an armrest. The upper part of the trim upper covers the lower side of the trim upper with the upper part of the trim lower being inclined downwardly toward the indoor side. The trim upper and trim lower are assembled by engaging the locking claw provided at the tip of the locking plate that extends from the upper wall of the trim lower via the vertical wall-shaped flange to the opening edge of the trim lower. A notch is formed in the panel side edge of the vertical wall-shaped flange located between the upper surface wall and the locking plate in the trim lower. Characterized in that it was.

  Here, as interior parts for automobiles, there are a door trim, a rear side trim, a luggage side trim such as a wagon car, etc. attached to the interior side of the side wall panel of the vehicle. Further, automotive interior parts are configured by attaching various functional parts such as an inside handle unit, an armrest, a power window switch panel, and a speaker grill to a trim body as a base.

  The trim body according to the present invention can use a synthetic resin mold press-molded body, an injection-molded body, or the like, and is configured by joining and fixing a plurality of divided parts including at least two upper and lower divided bodies of a trim upper and a trim lower. Assembling type door trim body is used. In particular, a joint between the trim upper and trim lower is set on the armrest support that supports the armrest where the passenger's abdomen is easy to touch and the occupant rests on his elbows. It is the feature that was given.

  By the way, the structure of the joint between the trim upper and the trim lower is such that the lower surface of the trim upper is covered with the upper side of the trim lower so that they are overlapped, and an opening is formed in the trim upper. The part is an engaging part. On the other hand, the trim lower is regulated to be flush with the armrest, and the upper surface wall that constitutes the product surface is formed to be slightly downwardly inclined toward the indoor side. From the upper surface wall, a horizontal shape is formed via a vertical wall-shaped flange. A locking plate extending to the top is integrated, and a locking claw is provided at the tip of the locking plate. Therefore, the trim upper and the trim lower can be easily assembled by engaging the engaging claw with the opening edge of the trim upper. Furthermore, the present invention is characterized in that a notch is formed at the edge of the flange on the panel side in order to weaken the longitudinal wall-shaped flange, which is a rigid structure. Furthermore, it is preferable that the notch is V-shaped and has an upward slope.

  Therefore, when an impact load is applied from the side of the vehicle, such as during a side collision, the occupant's abdomen or the like hits the door trim due to the reaction force, but the stress at that time is concentrated on the notch provided on the flange, and this notch By breaking the flange as a base point, it is possible to effectively absorb the impact load. When the fracture of the flange starts, the upper wall and the locking plate in the trim lower are divided into upper and lower parts, the upper wall is bent and deformed so as to face upward, and the leading edge of the locking plate is directed downward. By bending and deforming, the trim lower can secure a large displacement stroke amount toward the side wall panel.

  Next, in a preferred embodiment of the present invention, a protrusion projecting toward the indoor side along the opening edge of the trim upper that engages the locking claw provided at the tip of the locking plate of the trim lower is provided. It is formed.

  And according to this embodiment, since the projection is formed along the edge of the opening and the rigidity of the opening edge is reinforced, the locking claw of the trim lower can be stably engaged. At the same time, the protrusion fits into the notch of the flange at the time of a side collision and further promotes the breaking of the notch, so that the shock absorbing performance can be further enhanced.

  As described above, in the interior parts for automobiles according to the present invention, the joint portion between the trim upper and the trim lower is located in the armrest support portion in the trim body, and the upper wall of the trim lower is slightly toward the indoor side. The locking plate is integrated with the upper surface wall through a vertical wall-shaped flange, and the locking claw provided at the tip of the locking plate is connected to the opening edge of the trim upper. Trim upper and trim lower are assembled by engaging the part. In order to weaken the vertical wall-shaped flange having the reinforcing rib function, a configuration is adopted in which a notch is formed at the panel side edge of the vertical wall-shaped flange.

  Therefore, when an impact load is applied from the side of the vehicle at the time of a side collision, stress concentrates on the notch provided in the flange, the flange starts to break, and the impact load can be absorbed. Furthermore, since the upper wall of the trim lower is set to be slightly downwardly inclined to the indoor side, the upper wall is easily bent and deformed so that the tip is directed upward, and the locking plate is directed so that the tip is directed downward. By bending and deforming, the door trim lower is displaced while ensuring a large stroke amount toward the side wall panel, so that the impact absorption performance can be enhanced.

  Furthermore, according to the further embodiment of the interior part for automobiles according to the present invention, since the projection that protrudes toward the indoor side is formed on the opening edge portion on the trim upper side, the rigidity of the opening edge is reduced. It can be strengthened to stabilize the engagement strength of the locking claw, and at the time of a side collision, this projection hits the notch of the flange, and the notch can be broken more quickly, so that the shock absorbing performance can be further improved. It has the effect.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an automobile interior part according to the present invention will be described in detail with reference to the accompanying drawings. Note that the gist of the present invention is as described in the scope of claims, and the contents of the embodiments described below are merely examples of the present invention.

  1 to 7 show an embodiment of the present invention. FIG. 1 is a front view of an automobile door trim to which the present invention is applied. FIG. 2 is a perspective view showing an armrest support portion of a door trim body in the automobile door trim. FIG. 3 is an explanatory view showing an assembly structure of a door trim upper and a door trim lower in an armrest support portion of the door trim main body, and FIGS. 4 and 5 are explanatory views showing a configuration of each mounting portion of the door trim upper and the door trim lower in the door trim main body. FIG. 6 is a cross-sectional view showing a configuration of an armrest support portion in the door trim main body, and FIG. 7 is an explanatory view showing an action at the time of a side collision in the automobile door trim.

  In FIG. 1, an automotive door trim 10 to which the present invention is applied is configured by mounting various functional parts on a door trim main body 20 as a base, and the door trim main body 20 includes upper and lower door trim uppers 30 and a door trim lower 40. It is composed of divided bodies. As a functional component to be mounted on the door trim main body 20, for example, an inside handle unit 11 for releasing the door lock is attached to a slightly inward side of the door trim upper 30, and the door trim upper 30 and the door trim are attached. An armrest 12 and an escutcheon panel 13 adjacent to the armrest 12 are attached to the joint portion of the lower 40. Further, the door trim lower 40 is provided with a door pocket 14, and the speaker grill 15 is provided on the front side of the door pocket 14 integrally with the door trim lower 40 or separately.

  By the way, the automotive door trim 10 to which the present invention is applied is characterized by the structure of the portion indicated by the symbol A in FIG. 1 from the vicinity of the rear end of the armrest 12 to the rear end of the door trim 10, and the armrest 12 is removed from the A portion and enlarged. FIG. 2 shows the assembled state, FIG. 3 shows an assembled structure of the door trim upper 30 and the door trim lower 40 in the portion A, and FIGS. 4 and 5 show perspective views of the door trim upper 30 and the door trim lower 40, respectively.

  The assembly structure of the door trim upper 30 and the door trim lower 40 will be described with reference to FIGS. First, at the joint portion of the door trim upper 30 and the door trim lower 40, the upper side of the door trim lower 40 is located on the product surface side so as to cover the lower surface of the door trim upper 30, and in particular, the product surface and surface of the armrest 12 In order to make one, the product surface of the door trim lower 40 is formed in a curved shape in which the upper wall 40a is inclined slightly downward toward the indoor side. An opening 31 is formed in the door trim upper 30, and the upper edge 31 a of the opening 31 functions as an engaging portion that engages with the door trim lower 40 and the chamber is formed along the upper edge 31 a of the opening 31. A protrusion 32 protruding inward is formed.

  On the other hand, the door trim lower 40 is provided with a locking plate 42 extending in a horizontal direction from a top wall 40a which is inclined slightly downward on the indoor side via a vertical wall-shaped flange 41, and the front end of the locking plate 42 is extended. The locking claw 43 is integrated with the claw 43, and the locking claw 43 is engaged with the upper edge 31 a of the opening 31 of the door trim upper 30. In the present invention, the V-shaped notch 44 is inclined upward at the panel side edge of the vertical wall-shaped flange 41 between the upper surface wall 40a and the locking plate 42, so that a side collision occurs. It is characterized by improved shock absorbing performance.

  FIG. 6 shows a state in which the door trim main body 20 is mounted on the door panel 50 after the door trim upper 30 and the door trim lower 40 are assembled. In FIG. 6, the door trim 50 is fitted into the door panel 50 by press-fitting a clip 46 that is mounted in advance on a clip mounting seat 45 erected on the back side of the door trim lower 40 in the mounting hole 51 of the door panel 50. Is attached.

  Further, the operation of the door trim 10 will be described from the attached state shown in FIG. FIG. 7 shows a state at the time of a side collision. When an impact load is applied from the side of the vehicle, the pressure from the occupant side is applied to the door trim 10 particularly in the vicinity of the armrest 12 by the reaction force. The load F applied to is concentrated on the V-shaped notch 44 provided on the flange 41, and the flange 41 starts to break with the V-shaped notch 44 as a base point. When the flange 41 is broken (a broken surface is indicated by a in FIG. 7), a part of the impact load is absorbed, and the upper surface wall 40a and the locking plate 42 are divided vertically. Particularly, since the V-shaped notch 44 is set to be inclined upward, the upper surface wall 40a of the door trim lower 40 is easily bent and deformed in the direction of the arrow P1 in FIG. The tip is bent and deformed in the direction of the arrow P2 in FIG. Therefore, since the door trim lower 40 is displaced with a large stroke amount in the direction approaching the door panel 50 side, the impact load can be absorbed effectively. In addition, about the shape of the V-shaped notch 44, if it has the function which can induce a fracture | rupture at the time of a side collision, a notch shape will not be specifically limited.

  Further, at this time, the projection 32 provided along the upper edge 31a of the opening 31 of the door trim upper 30 enters in the direction of the arrow P3 in FIG. 7 and bites into the V-shaped notch 44 provided in the door trim lower 40, so that the flange Since the breakage of 41 can be further promoted, the impact absorption performance at the time of a side collision can be further enhanced.

  In addition to the automobile door trim 10 applied in the embodiment, the present invention can be applied to a rear side trim or a luggage side trim such as a wagon car. Moreover, although the door trim main body 20 employ | adopted the upper and lower split structure of the door trim upper 30 and the door trim lower 40, if it is the structure which assembles | attaches the split part which employ | adopted the junction part to the support part of the armrest 12, it will be multi-partition more than three parts It can also be applied to structural interior parts.

It is a front view which shows the door trim for motor vehicles which applied the interior component for motor vehicles based on this invention. FIG. 2 is an enlarged perspective view of a portion A of the automobile door trim shown in FIG. 1, and is a perspective view showing an armrest support portion in a door trim main body from which an armrest is removed. It is explanatory drawing which shows the assembly structure of the door trim upper and door trim lower in the armrest support part shown in FIG. It is a perspective view which shows the door trim upper in the armrest support part shown in FIG. It is a perspective view which shows the door trim lower in the armrest support part shown in FIG. It is sectional drawing which shows the state which attached the door trim for motor vehicles based on this invention to the door panel. It is explanatory drawing which shows the impact absorption effect at the time of the side collision in the door trim shown in FIG. It is a perspective view which shows the conventional door trim for motor vehicles. It is sectional drawing which shows the structure of the armrest attachment part in the conventional door trim for motor vehicles. It is a perspective view which shows the armrest support part in the door trim main body of the conventional upper and lower divided structure. It is sectional drawing which shows the structure of the door trim main body of the conventional 2 divided upper and lower structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Automotive door trim 12 Armrest 20 Door trim main body 30 Door trim upper 31 Opening 31a Upper edge 32 Protrusion 40 Door trim lower 40a Top wall 41 Flange 42 Locking plate 43 Locking claw 44 V-shaped notch 45 Clip mounting seat 46 Clip 50 Door panel 51 Mounting hole

Claims (2)

An automotive interior component (10) mounted on the interior side of a vehicle side wall panel (50), wherein a trim body (20) in the automotive interior component (10) is divided in the vertical direction, 12) An upper surface wall including at least a trim upper (30) and a trim lower (40) in which a joint portion between the two is set in the vicinity, the upper side of the trim lower (40) being inclined slightly downward toward the indoor side (40a) covers the lower side of the trim upper (30), and the upper wall (40a) of the trim lower (40) has a vertical wall shape with respect to the opening (31) edge (31a) of the trim upper (30). The trim upper (30) and the trim lower (40) are assembled by engaging the locking claw (43) provided at the tip of the locking plate (42) extending through the flange (41). In moving vehicles interior parts (10),
In the trim lower (40), a notch (44) is formed at the panel side edge of the vertical wall-shaped flange (41) located between the upper surface wall (40a) and the locking plate (42). Automotive interior parts.   Along the opening (31) edge (31a) of the trim upper (30) for engaging the locking claw (43) provided at the tip of the locking plate (42) of the trim lower (40), The interior part for an automobile according to claim 1, wherein a projection (32) projecting toward the surface is formed.

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