JP2007190959A - Interior trim material structure of vehicle door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior trim material structure of a vehicle door, which can increase the bonding strength of a split part (a joint part) of an interior trim material. <P>SOLUTION: In this interior trim material structure of a vehicle door, a plurality of divided interior trim members (e.g. a door trim upper 6 and a door trim lower 7) are bonded to each other at a joint part 15 to form one interior trim material (e.g. a door trim 4), and a shock absorbing member 5 is fitted to the back of a design surface of the interior trim material. The range where to locate the shock absorbing member 5 is disposed to pass the joint part 15, and among the plurality of interior trim members, the edge part (e.g. the lower edge 6a of the door trim upper 6) of the interior trim member where a part to which the load is applied by an occupant's hand or arm is disposed is held and fixed between the edge (e.g. the lower edge 7a of the door trim lower 7) of the other adjacent interior trim member and the shock absorbing member 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to the structure of an interior material (interior part) for a vehicle door. More specifically, the interior member divided into a plurality of parts is joined at a joint to form one interior material, and the back side of the design surface of the interior material The present invention relates to an interior material structure of a vehicle door in which a shock absorbing member is attached. The present invention is particularly suitable for application to the structure of a vehicle door trim including an impact absorbing member that absorbs an impact from the side of the door.

As a technology that makes it possible to give a rich design by dividing the interior material of a vehicle door (for example, an automobile door) into a plurality of parts and giving each of the divided parts a different color and texture, For example, Japanese Utility Model Publication No. 7-27218 (Patent Document 1) is available.
No. 7-27218

  For interior materials consisting of multiple interior members, there is a risk that loads associated with repeated operations when opening and closing the door may concentrate on the interior material divisions that are disadvantageous in strength. It was necessary.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide an interior material structure for a vehicle door that can improve the joint strength of a divided portion (joint location) of the interior material. It is in.

In order to achieve the above-described object, in the present invention, a plurality of interior members are joined together at a joint to form one interior material, and an impact absorbing member is attached to the back side of the design surface of the interior material. In the interior material structure of the vehicle door, the range where the shock absorbing member is located is arranged so that the joint portion passes, and among the plurality of interior members, a component that receives a load caused by a passenger's hand or arm is arranged. The edge part of the interior member is sandwiched and fixed between the edge part of another adjacent interior member and the shock absorbing member.
Further, in the present invention, a pull case, which is one of components that receive a load from the passenger's hand or arm, is arranged around the shock absorbing member.
In the present invention, a pocket is formed in the other interior member, and the inner wall member of the pocket and the shock absorbing material are coupled to each other.
In the present invention, the joint is arranged in the center of the shock absorber.

  The present invention according to claim 1 is an interior member in which a range in which the impact absorbing member is located is disposed so that the joint portion passes, and among the plurality of interior members, a component that receives a load caused by a passenger's hand or arm is disposed. Since the edge of the door is sandwiched and fixed between the edge of the other adjacent interior member and the shock absorbing member, the interior member (for example, door trim) is used by the passenger. The interior member can be supported in a sandwiched state between the shock absorbing member and the other interior member regardless of the load from which side in the indoor / outdoor direction, and thus a joint portion in which a plurality of interior members are joined together ( It is possible to prevent breakage at the dividing portion. In addition, the height of the occupant's waist corresponding to the shock absorber is lower than the occupant's elbow, so by placing the joint at this position, the operation system component is placed on the interior member above the joint. It can be concentrated.

  Further, according to the second aspect of the present invention, since the pull case which is one of the parts subjected to the load by the occupant's hand or arm is arranged around the shock absorbing member, By making the pull case having a high load and a large load close to the impact absorbing member, it is possible to further enhance the effect of preventing breakage at the joint portion where the plurality of interior members are joined to each other.

  According to the third aspect of the present invention, a pocket is formed in another interior member, and the inner wall member of the pocket and the shock absorbing material are coupled to each other. It is possible to obtain a shock absorbing effect.

  Further, according to the fourth aspect of the present invention, since the joint portion is arranged at the center of the shock absorbing material, a stable support effect for both of the interior members joined to each other can be obtained.

  Hereinafter, an interior material structure of a vehicle door according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 shows an automobile 1 having an interior material structure for a vehicle door according to an embodiment of the present invention. As shown in FIGS. 1 and 2, a window opening (window opening) P surrounded by a frame (sash) can be moved up and down above the front door (vehicle door) 2 of the automobile (vehicle) 1. A window glass 3 is provided, and a design surface on the indoor side of the front door 2 is covered under the window opening P (below the front door 2) by a door trim 4 which is an interior material (see FIG. 2). ). Then, on the back side of the design surface of the door trim 4 (the back side of the door trim 4), an impact absorbing material 5 for protecting the lumbar portion of the occupant W from the impact received from the side surface of the front door 2 is attached. The impact absorbing member 5 is a resin blow molded product having a hollow portion S (see FIG. 6).

  The door trim 4 described above has a plurality of interior members (in this embodiment, two interior members, that is, the door trim upper 6 and the door trim 6 as shown in FIG. The door trim lower 7) is connected to form a door trim 4 as one interior material. A plurality of interior members, that is, a boundary line 8 (and a joint portion 15 described later) connecting the door trim upper 6 and the door trim lower 7 are shock-absorbing as shown in FIGS. It arrange | positions so that the range which has arrange | positioned the member 5 may be passed.

  On the other hand, the door trim upper 6 disposed on the upper side has an inside handle 9 for releasing the engagement (latching) between the front door 2 and the vehicle body when the occupant opens the front door 2. 5), a pull case 10 (see FIG. 2, FIG. 4 to FIG. 6) that the passenger in the vehicle cabin pulls on the front door 2 and closes the vehicle, so that the passenger can rest with his arms and hands resting. An armrest 11 (see FIGS. 2 and 4 to 6) projecting into the room, an operation switch 12 (see FIGS. 2 and 5) for moving the window glass 3 up and down, and the like are arranged.

  Thus, the occupant releases the engagement (latch) between the front door 2 and the vehicle body by pulling the lever of the inside handle 9 when opening the front door 2, and pushes the inside handle 9 as it is or The front door 2 can be opened to the outside of the passenger compartment by touching the surface of the door trim upper 6 around the handle 9 with an arm or a hand. The pull case 10 is provided, for example, by forming a concave shape on the upper surface of the armrest 11. When the occupant closes the front door 2, the pull case 10 is put on the hand and the front door 2 is moved. By pulling, the front door 2 can be closed. The pull case 10 can be used not only when the front door 2 is closed but also when the occupant grips and pushes the front door 2 outward when the front door 2 is opened. Further, the operation switch 12 may be disposed on the upper surface of the armrest 11 as shown in FIG. 2, and in order to facilitate the attachment / detachment of the operation switch 12 at the time of maintenance, an arm restorer 11a in which a range including the upper surface of the armrest 11 is divided. (See FIGS. 2, 4 and 5), the arm restorer 11a may be detachable from the armrest 11, and the operation switch 12 may be fixed to the arm restorer 11a. In this case, the pull case 10 is also provided in the arm restore upper 11a.

  As described above, in the present embodiment, components that are subjected to loads caused by various operations of the occupant are arranged as close to the door trim upper 6 side as possible.

  On the other hand, a pocket 13 having an opening 13a on the lower side of the shock absorbing member 5 is provided on the door trim lower 7 side. The opening 13a of the pocket 13 is formed integrally with the door trim lower 7 and, as shown in FIG. 3, a pocket inner wall material 14 made of another member is attached to the back side of the design surface of the door trim lower 7, thereby The rigidity equal to that of the lower 7 is maintained, and a certain amount of space can be maintained inside the pocket even when not in use.

  Thus, the door trim 4 in the present embodiment is arranged from the top in the order of the door trim upper 6 to which various parts to be operated by the occupant are attached, the shock absorbing member 5, and the door trim lower 7 in which the pocket 13 is formed.

  Since the components that are attached to the door trim upper 6 and are subjected to loads from the occupant's hands and arms need to be placed within the operating range of the arms and hands, the occupant's elbow height in the seated state or above Therefore, by setting the boundary 8 between the door trim upper 6 and the door trim lower 7 below the position of the elbow in the seated state of the occupant, a component that receives a load from the occupant's hand or arm Can be arranged together on the door trim upper 6, and the load from the passenger is mainly concentrated on the door trim upper 6 in various situations.

  And the arrangement | positioning position of the boundary line 8, ie, the position below the position of the elbow in a passenger | crew's sitting state respond | corresponds to the waist | hip | lumbar part in a passenger | crew's seating state, and the impact-absorbing member 5 is arrange | positioned in this position. Thereby, especially when an excessive impact force is applied to the side surface of the front door 2 from the bumper of another automobile, it is effective in protecting the occupant's waist at the bumper position. Furthermore, by arranging the door trim lower 7 formed with a pocket 13 having a certain amount of space underneath, the pocket 13 also serves as a shock absorber, so the size of the shock absorber 5 can be saved. can do.

  In contrast to the door trim 4 having the above characteristics, in the present embodiment, the following characteristics are further provided so that the rigidity and strength of the door trim 4 can be improved.

As described above, a load is applied to the door trim upper 6 regardless of whether the front door 2 is opened or closed, the operation switch 12 is operated, or the armrest 11 is used. It tends to concentrate on an unfavorable joint part (a joint part between the door trim upper 6 and the door trim lower 7) 15. In addition, in the vertically divided structure composed of the door trim upper 6 and the door trim lower 7, forces F ₁ and F ₂ act in the deformation direction starting from the joint 15 during transportation (see FIG. 6). Basically, the door trim upper 6 and the door trim lower 7 are welded at several places (for example, three places) by bosses 16a, 16b, and 16c (see FIGS. 3 and 6), which will be described later, provided on the door trim lower 7. Although fixed, this is not enough to support the forces F ₁ and F ₂ . For this reason, there is a concern that deformation and deterioration of texture due to insufficient rigidity due to the presence of the joint 15 between the door trim upper 6 and the door trim lower 7 may occur. Therefore, in the present embodiment, in order to increase the holding strength of the door trim upper 6 at the joint portion 15, the shock absorbing member 5 is arranged to straddle both the door trim upper 6 and the door trim lower 7, respectively. The lack of rigidity caused by the joint 15 is improved.

  Details thereof will be described below.

  FIG. 4 shows a state seen from the back side of the design surface of the door trim 4. As shown in FIG. 4, the upper edge 7 a of the door trim lower 7 extends from the vehicle interior side to the lower edge 6 a of the door trim upper 6. 4 and FIG. 5, the shock absorbing member 5 is placed on the door trim 4 so as to straddle the joint 15 (and thus the boundary line 8 described above). It is attached from the back side (vehicle compartment outside) of the design surface. Thereby, as shown in FIG. 6, the lower end edge 6 a of the door trim upper 6 is in a state (held state) between the upper end edge 7 a of the door trim lower 7 and the impact absorbing member 5. Therefore, even when a load is applied to the door trim upper 6 toward either the vehicle interior side or the vehicle exterior side, such as when the front door 2 is opened or closed or when the armrest 11 is used, the door trim upper 6 corresponding to the joint portion 15 Since the lower end edge portion 6a is supported from both sides by the end edge portion of the door trim lower 7 and the impact absorbing member 5, the bonding strength at the bonding portion 15 is increased.

In particular, among the opening / closing operation portions provided in the door trim upper 6, the pull case 10 that is frequently used is provided near the upper portion of the portion where the shock absorbing member 5 is fixed, thereby improving the texture of the entire front door 2. The pull case 10 is a part that directly transmits the forces f ₁ and f ₂ (see FIG. 6) to the front door 2 when the front door 2 is opened and closed from the indoor side. _1, the displacement amount than other portions by f ₂ that is larger is concerned. Under such circumstances, the upper and lower divided structure of the door trim 4 is insufficient in rigidity, so that the amount of displacement is further increased, and it is expected that the texture will be deteriorated. Therefore, in the present embodiment, the impact absorbing member 5 is arranged around (near) the pull case 10 to improve the rigidity of the upper and lower divided structure, and thus the texture is improved by suppressing the displacement amount. .

  In addition, although this junction part 15 is arrange | positioned below the position of the passenger | crew's elbow seated as mentioned above, ie, the location located in a passenger | crew's waist | hip | lumbar part, arrange | positioning the impact-absorbing member 5 in such a location. Is also preferable in terms of effectively protecting the waist of an occupant who is susceptible to an impact when an excessive impact force acts on the side surface of the front door 2.

  Further, a pocket 13 of the door trim lower 7 is arranged below the place where the shock absorbing member 5 is arranged, and a certain amount of space is secured inside the pocket 13, thereby impact due to deformation of the front door 2. The function to absorb is given. Therefore, it is preferable from the aspect of protecting the occupant from the impact applied to the front door 2 to dispose the impact absorbing member 5 at the joint 15 that overlaps with the position of the waist of the occupant and deviates from the range of the pocket 13 having the impact absorbing function. . Furthermore, in this embodiment, as shown in FIGS. 3 and 5, two end pieces α, β on the lower end side of the shock absorbing member 5 and two end pieces γ, δ on the upper end side of the pocket inner wall member 14 are provided. The door trim lowers 7 are fastened together and overlapped with each other. Thereby, two parts provided with the function of shock absorption are arranged continuously, and it is constituted so that a better shock absorption effect can be obtained.

  Next, details of the fixing structure of each member will be described with reference to FIG. FIG. 3 is a view of the door trim upper 6, the door trim lower 7, the shock absorbing member 5, and the pocket inner wall material 14 as viewed from the back in the order of assembly. In the example shown in FIG. 3, the door trim upper 6 is assembled to the door trim lower 7 from the back side of the door trim lower 7, and ultrasonic welding is performed to join both these members.

  The procedure for assembling the shock absorbing member 5 to the door trim upper 6, the door trim lower 7, and the pocket inner wall material 14 is as follows.

  First, the door trim upper 6 and the pocket inner wall material 14 are assembled to the door trim lower 7 from the back side of the front door 2. At that time, the boss 16a of the bosses 16a, 16b, 6c provided on the door trim lower 7 is an end piece ε on the lower end side of the door trim upper 6, and the boss 16b is an end piece γ on the upper end side of the pocket inner wall member 14, The boss 16c is passed through the end pieces δ on the upper end side of the pocket inner wall member 14, and finally the boss 16a is placed on the flat portion 5a (see FIG. 6) at the center of the shock absorbing member 5 and the lower end side of the shock absorbing member 5 The boss 16b is passed through the end piece α and the boss 16c is passed through the end piece β on the lower end side of the shock absorbing member 5, and the bosses 16a, 16a, 16b are joined by an ultrasonic welding machine (a machine for melting and fusing the resins). Each part is fixed by welding 16b and 16c.

  Thus, the impact absorbing member 5 is disposed so as to straddle the joint 15 as shown in FIGS. In addition, due to the joint fastening and fixing by the boss 16a described above, the lower edge 6a of the door trim upper 6 is located between the upper edge 7a of the door trim lower 7 and the flat portion 5a of the shock absorbing member 5 as clearly shown in FIG. Supported in a sandwiched state. Further, the door trim upper 6 and the door trim lower 7 are supported by the terminal portions 5 b and 5 c of the shock absorbing member 5. As a result, it is possible to improve the lack of rigidity by dividing the upper and lower parts. Further, as the rigidity of the door trim upper 6 and the door trim lower 7 is improved, the overall texture of the front door 2 can be improved.

  Further, the end pieces α, β of the shock absorbing member 5 and the end pieces γ, δ of the pocket inner wall member 14 are fastened together with the bosses 16b, 16c, respectively, so that the stability of the shock absorbing member 5 is maintained and the rigidity is maintained. This can be further improved.

  According to the interior material structure of a vehicle door as described above, a plurality of divided door trim uppers 6 and door trim lowers 7 are connected to form one door trim 4, and an impact absorbing member 5 is provided behind the design surface of the door trim 4. When installing, a dividing boundary line 8 between the door trim upper 6 and the door trim lower 7 is arranged at a position where the shock absorbing member 5 is arranged, and an opening / closing operation unit (inside handle 9, A door trim upper 6 having an operation panel such as a pull case 10 and a window operation switch 12 is sandwiched between the door trim lower 7 adjacent thereto and the shock absorbing member 5 to be joined (joined), whereby a door trim is obtained. It is possible to improve the bonding strength of the four divided portions (divided portions 15). That is, insufficient rigidity due to the upper and lower divided structure of the door trim 4 can be improved, and the overall texture of the front door 2 can be improved.

  Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications and changes can be made based on the technical idea of the present invention. For example, the shock absorbing member 5 may be disposed at any position as long as it is located across the door trim upper 6 and the door trim lower 7. When the joint portion 15 is disposed at the center of the absorbent material 5 (see FIG. 6), the upper and lower door trim uppers 6 and the door trim lower 7 can be evenly supported, and both these members can be stably supported. . In the embodiment described above, the door trim 4 having a two-part structure is used, but it goes without saying that the present invention can be applied to a case where the door trim 4 has three or more parts. Absent.

It is a side view of the motor vehicle provided with the interior material structure of the vehicle door which concerns on one Embodiment of this invention. It is the side view which looked at the front door from the vehicle inner side. It is a disassembled perspective view which shows the attachment state of an impact-absorbing member. It is the figure which looked at the attachment location of an impact-absorbing member from the back side of the design surface of a door trim. It is a side view which shows the design surface of a door trim. FIG. 5 is an enlarged sectional view taken along line XX in FIG. 4.

Explanation of symbols

1 Automobile 2 Front door (vehicle door)
4 Door trim 5 Shock absorbing member 5a Flat portion 6 Door trim upper 6a Lower edge 7 Door trim lower 7a Upper edge 8 Boundary line 10 Pull case 13 Pocket 14 Pocket inner wall material 15 Joint 16a, 16b, 16c Boss α, β, γ, δ , Ε End piece

Claims (4)

  In the interior structure of a vehicle door, wherein the interior member divided into a plurality of parts is joined at a joint to form one interior material, and the impact absorption member is attached to the back side of the design surface of the interior material. Is positioned so that the joint portion passes, and among the plurality of interior members, an edge portion of the interior member in which a part that receives a load caused by an occupant's hand or arm is disposed, is adjacent to the other interior. An interior material structure for a vehicle door, wherein the interior material structure is sandwiched and fixed between an edge portion of the member and the shock absorbing member.   2. The interior structure of a vehicle door according to claim 1, wherein a pull case, which is one of parts subjected to a load by an occupant's hand or arm, is arranged around the shock absorbing member.   The interior material structure for a vehicle door according to claim 1 or 2, wherein a pocket is formed in the other interior member, and an inner wall member of the pocket and the shock absorbing material are coupled to each other. The interior material structure of a vehicle door according to any one of claims 1 to 3, wherein the joint portion is arranged in the center of the shock absorber.

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