JP6345388B2 - Interior parts alignment structure - Google Patents

Description

  The present invention relates to a structure for aligning interior parts that allows the interior parts to be more accurately mated without performing laborious processing.

  As shown in FIG. 5, in a vehicle such as an automobile, a vehicle interior panel called an instrument panel 1 or the like is installed at the front of the vehicle interior (see, for example, Patent Document 1).

  Such an instrument panel 1 is provided with an air blowing portion 2 for blowing air for air conditioning toward the passenger compartment. The air blowing part 2 is configured such that an interior part 4 such as an air conditioning grill is attached to a part attaching part 3 formed on the instrument panel 1.

  On the other hand, as shown in FIG. 6, the above-described instrument panel 1 is integrated by interposing a foam layer 7 having cushioning properties between a rigid core material 5 and a flexible skin material 6. There is one using a multi-layer mounting base material 8 formed as described above.

  The instrument panel 1 having such a multilayer structure includes, for example, a foaming agent 9 or a foaming liquid (FIG. 5) that is a raw material for foam molding between a core material 5 and a skin material 6 set in a foam molding die (not shown). And the foamed layer 7 is molded by foaming the foaming agent 9 in a foaming mold, and so on.

  The component mounting portion 3 described above includes a component mounting recess 11 (see FIG. 6) and a duct connection opening 13 formed on the bottom surface 12 of the component mounting recess 11. The opening 13 is formed by cutting and removing a portion set by the cutting line 14 inside the bottom surface 12 after foam molding of the instrument panel 1 by post-processing.

  In accordance with the shape of the component mounting portion 3, as shown in FIG. 5, the interior component 4 such as the air conditioning grill is provided with a grill main body 15 that can be fitted in the component mounting recess 11 and the duct connection described above. For example, a stepped shape having a duct connection portion 16 inserted into the inside of the opening portion 13 for use.

Japanese Patent Laid-Open No. 4-168006

  However, in the above-described instrument panel 1 having a multilayer structure, for example, as shown in FIG. 7, the above-described foam molding is performed so that the foam layer 7 is not formed on the above-described component mounting recess 11. In that case, it is necessary to bypass the foaming agent 9 along the periphery of the component mounting recess 11. However, in the portion 17 where the foaming agent 9 wraps around to the opposite side of the component mounting concave portion 11 and the like is easily disturbed (in the flow of the foaming agent 9), voids are generated in the portion 17 in which the above-mentioned disorder has occurred. If the above occurs, the quality of the instrument panel 1 may be deteriorated.

  Therefore, as a countermeasure, as shown by the phantom line in FIG. 7, the foamed layer 7 is formed also on the component mounting recess 11, that is, the foaming agent 9 passes inside the component mounting recess 11. It is conceivable to perform foam molding as described above. However, in this case, as shown in FIG. 8, the interior part 4 such as an air conditioning grille attached to the part mounting recess 11 is supported on the back side by the foam layer 7 having a remarkably large elastic deformation amount. Therefore, there arises a problem that the surface alignment accuracy of the interior part 4 is lowered with respect to the reference position indicated by the virtual line.

  Therefore, as shown in FIG. 9, in the same manner as in FIG. 8, the component mounting recess 11 having the foam layer 7 on the inside is foam-molded, and the opening 13 is formed along the cutting line 14. As the additional processing portion 18, by removing a part of the foamed layer 7 having a large elastic deformation amount in the remaining portion of the bottom surface 12 of the component mounting recess 11, a part of the core material 5 is exposed, It is conceivable to improve the surface alignment accuracy of the interior part 4 by directly supporting the back side of the interior part 4 with respect to the exposed portion of the hard core material 5. However, if it does in this way, since processing (additional processing part 18) for removing a part of foaming layer 7 will be needed separately, processing man-hours will increase and processing cost will become high. Will cause the problem.

In order to solve the above problem, the invention described in claim 1 is:
Interior parts are mounted on a component mounting part formed on a multi-layer mounting base that is formed by interposing a foam layer with cushioning properties between a rigid core material and a flexible skin material. As well as
By supporting the height adjustment leg provided on the back side of the interior part on the inner back of the part mounting part,
In the interior component matching structure installed so that the surface of the interior component is flush with the portion around the component attachment portion in the mounting base material,
The component mounting portion has an opening cut in the inner back portion by aligning the positions of the core material, the skin material, and the foam layer with a cutting line,
Providing a protrusion for backing that directly contacts the back surface of the skin material on the inner part of the component mounting portion of the core material,
The height adjustment legs are received by the backing protrusions located on the back side of the skin material through the skin material,
The backing protrusion is a rib that extends toward the opening along the bottom surface of the component mounting portion with respect to the component mounting portion .
The invention described in claim 2 is the above,
At least one pair of said backing protrusions is provided with a position restricting portion for restricting the position in the surface direction of the skin material with respect to the core material.
The invention described in claim 3 is the above,
The position restricting portion is a tapered portion that is inclined toward the center of the component mounting portion as it proceeds to the back side of the component mounting portion.
The invention described in claim 4 is the above,
The backing protrusion is extended in the main flow direction of the foaming agent injected between the core material and the skin material in order to form the foam layer.
The invention described in claim 5 is the above,
A plurality of the protrusions for backing are arranged at different positions so as not to overlap with the main flow direction of the foaming agent.

According to the first aspect of the present invention, the following operational effects can be obtained by the above configuration.
That is, the height adjustment leg provided on the back surface side of the interior part is received by the backing protrusion located on the back surface side of the skin material via the skin material. to the thickness direction of the timber, it can be carried out between the legs for the height adjustment and back daily use protrusion, the surface alignment of the interior component without completely Zaisa through a large foam layer of the amount of compressive deformation As a result, the surface alignment accuracy of the interior part with respect to the mounting substrate can be improved.
Moreover, the mounting base material having a multilayer structure can be foam-molded with a component mounting part having a foam layer in a state having a backing projecting part for receiving a height adjusting leg part, and surroundings. Even if the foam layer is present, the backing protrusion can be made to function, so that a laborious process such as removing a part of the foam layer in a subsequent process is not required. Therefore, the processing man-hours and processing costs can be reduced accordingly. At this time, the foam layer present around the backing protrusion does not interfere with the above-described surface matching.
In addition, since the mounting substrate having a multilayer structure can be foam-molded so that a foam layer is formed in the component mounting portion, that is, the foaming agent flows without bypassing the component mounting portion during foam molding. Therefore, the flow of the foaming agent is not disturbed around the component mounting portion, and a high-quality mounting base material can be obtained accordingly.
On the other hand, for example, when the mounting base material is foam-molded so that the foam layer is not formed on the component mounting portion, the foaming agent bypasses the periphery of the component mounting portion, thereby causing the flow of the foaming agent. Since the disturbance occurs, it is difficult to prevent the quality of the mounting base material from being deteriorated at the portion of the disturbance.
According to the second aspect of the present invention, the following effects can be obtained by the above configuration.
That is, at least a pair of the protrusions for backing are provided with a position restricting portion, so that when the multilayer structure mounting base material is formed by foam molding, the position restricting portion allows the skin material to be accurately applied to the core material. Can be positioned. As a result, it is possible to obtain a mounting substrate with high quality and high accuracy.
According to the third aspect of the present invention, the following operational effects can be obtained by the above configuration.
That is, as the position restricting portion is a tapered portion inclined toward the center of the component mounting portion as it advances to the back side of the component mounting portion, the taper portion approaches the core material side according to the taper portion. The skin material can be automatically moved to an appropriate position and adjusted. Thereby, the attachment base material in which the core material and the skin material are installed with high positional accuracy can be obtained constantly.
According to the invention described in claim 4, the following effects can be obtained by the above-described configuration.
That is, since the protrusion for backing is extended in the direction of the main flow of the foaming agent, the main flow of the foaming agent is not easily obstructed by the protrusion for backing. Therefore, it is possible to obtain a mounting substrate having a multilayer structure with a good quality.
According to the fifth aspect of the present invention, the following effects can be obtained by the above configuration.
In other words, by arranging a plurality of back protrusions so that they do not overlap with the main flow direction of the foaming agent, the back protrusions are foamed by arrangement. Since the main flow of the agent can be made difficult to be disturbed, the foaming agent is less likely to be disturbed, and accordingly, a mounting substrate having a multilayer structure with better quality can be obtained.

It is a partial expanded sectional view of the component attachment part of the interior component matching structure concerning the Example of this invention. It is a top view of the component attachment part in the attachment base material of FIG. It is a top view of the component attachment part in the modification of FIG. It is a top view of the component attachment part in another modification of FIG. It is a whole perspective view of the attachment base material which has a multilayered structure for demonstrating the Example and conventional example of this invention. FIG. 6 is a cross-sectional view (along line AA) in FIG. 5. It is a figure which shows the direction of the main flows of the foaming agent in the attachment base material of FIG. It is a partial expanded sectional view of the component attachment part which has a foaming layer. It is the elements on larger scale of the component attachment part which removed a part of foaming layer.

Hereinafter, the present embodiment and examples embodying the present embodiment will be described in detail with reference to the drawings.
1 to 4 show examples of this embodiment and modifications thereof.
Here, the same or similar parts as those in FIGS. 5 to 7 described above are given the same reference numerals so that the correspondence is clear.
Further, FIG. 5 to FIG. 7 are used as necessary.

<Configuration> The configuration will be described below.
(Basic configuration)
As shown in FIG. 1 (see also FIG. 5 and FIG. 6), the mating structure of the interior part 4 of this embodiment is a cushioning property between a rigid core material 5 and a flexible skin material 6. The interior component 4 is mounted on the component mounting portion 3 formed on the mounting base 8 having a multilayer structure formed by interposing a foam layer 7 having
And the surface of the above-mentioned interior component 4 was described above by supporting the height adjusting leg portion 21 provided on the back side of the interior component 4 on the inner back portion of the component mounting portion 3 described above. The mounting base 8 is installed so as to be flush with the portion around the component mounting portion 3 described above.

(Supplementary explanation)
Here, the above-mentioned “core material 5” is made of a hard and thick resin or the like. The core material 5 is hardly compressed and deformed in the thickness direction. The core material 5 is basically substantially uniform in thickness except for exceptional parts.

  The “skin material 6” described above is made of a soft, thin-walled resin or the like. The skin material 6 is hardly compressed and deformed in the thickness direction. The skin material 6 is basically substantially uniform in thickness except for exceptional parts.

The above “foam layer 7” is made of, for example, a foamable material such as urethane foam. This foam layer 7 can be rephrased as a cushion layer or an elastic layer. The foamed layer 7 basically has a substantially uniform thickness except for exceptional portions.
The foam layer 7 is considerably thicker than the core material 5 and the skin material 6, and has a much larger amount of compressive deformation than the core material 5 and the skin material 6.

  The “mounting base material 8” described above is a laminated member in which the core material 5, the foam layer 7, and the skin material 6 are laminated in order from the back surface side. The attachment substrate 8 having such a multilayer structure is manufactured by, for example, foam molding. In short, this foam molding is, in short, a foaming agent 9 or a foaming liquid (see FIG. 2 or FIG. 5) as a raw material (foam molding) between the core material 5 and the skin material 6 set in a foam molding die (not shown). And the foaming layer 9 is formed by foaming the foaming agent 9 in the foaming mold. The core material 5 and the skin material 6 are joined and integrated by the foam layer 7. Note that the mounting base 8 may have four or more layers.

  In this case, the attachment base material 8 is assumed to be a vehicle interior panel such as an instrument panel 1 provided in a front part of a vehicle interior of a vehicle such as an automobile or a sub panel attached to the instrument panel 1. However, the attachment base material 8 may be other parts as long as it has the above-described multilayer structure.

  The “component mounting portion 3” described above has a recessed component mounting recess 11 having a required size and depth necessary for mounting the interior component 4. For example, in FIG. 5, the component mounting portion 3 has a substantially rectangular shape when viewed from the front and has a side portion extending in the vertical direction and a side portion extending substantially in the vehicle width direction. However, the component mounting portion 3 is not limited to a rectangular shape. Moreover, the direction of each side part of the component attachment part 3 is not necessarily restricted to the above.

  As shown in FIG. 1, the component mounting recess 11 has an inner side surface 22 and a bottom surface 12 in the depth direction (upward direction in FIG. 1). This component mounting recess 11 fits the core material side recess formed in the core material 5 and the skin side recess formed in the skin material 6 with an interval necessary for forming the foamed layer 7. It is formed by arranging. The skin-side recesses are smaller than the core-side recesses by the thickness of the foam layer 7, and the inner side surfaces and the bottom surfaces corresponding to the inner side surface 22 and the bottom surface 12 of the component mounting recesses 11, respectively. And have.

  In this case, the component mounting portion 3 is used for mounting an interior component 4 such as an air conditioning grill to the instrument panel 1 described above. Therefore, an opening 13 or the like for connecting to an air conditioning duct (not shown) installed inside the instrument panel 1 is formed in the inner back portion of the component mounting portion 3 (the bottom surface 12 of the component mounting recess 11). The The opening 13 is formed by post-processing using a processing tool such as a hot blade after performing foam molding so that the entire component mounting portion 3 has a multilayer structure. The opening 13 is formed by cutting and removing the central portion of the bottom surface 12 of the component mounting recess 11 at the position of the cutting line 14, thereby providing a bottom edge 25 (only a small width enough to support the above-described leg 21). It is formed with the inner peripheral flange part) remaining.

  In this case, the above-described “interior part 4” is assumed to be an air conditioning grill as described above. As can be seen from FIG. 5, this air conditioning grill has a stepped shape having a grill main body 15 fitted in the component mounting recess 11 and a duct connecting portion 16 inserted into the opening 13 described above. It is said.

  The interior component 4 may be a decorative component such as a decorative plate, a decorative frame, or a finisher in addition to the air conditioning grill. When the interior part 4 is a decorative part other than the air conditioning grille, the opening 13 described above may be unnecessary.

  In this case, the above-described “leg portion 21” is a side surface (which constitutes a thick portion) of the grill body 15 in the interior part 4 such as an air conditioning grille. The side surface of the grill main body 15 is a peripheral wall extending in the circumferential direction along the inner side surface 22 of the component mounting portion 3. The side surface of the grill body 15 is formed to have substantially the same depth as the inner side surface 22 of the component mounting recess 11.

  However, when the interior component 4 is a simple decorative component, for example, the leg portion 21 may be a leg-shaped portion extending from each corner portion of the interior component 4 or a pair of opposing sides of the interior component 4. It is good also as an end wall-like thing each extended from a part.

  In this case, the above-mentioned “inner part of the component mounting portion 3” is the bottom surface 12 of the component mounting recess 11 as described above.

  The above-mentioned “part around the component mounting portion 3 in the mounting base 8” refers to the outer peripheral portion of the component mounting portion 3 on the surface of the mounting base 8. Or it is the surface of the skin material 6 around the component mounting portion 3.

  The above-mentioned “same surface” is literally installed so that the surface of the interior component 4 is continuous with the surface of the mounting base 8 (portion around the component mounting portion 3) with almost no step. However, for example, a slight error about one or two sheets of the skin material 6 or less, that is, an error that does not make a human feel a step may be allowed.

  In addition to the basic configuration as described above, the present embodiment has the following configuration.

(Configuration 1)
A backing protrusion 31 extending toward the back surface of the skin material 6 is provided on the inner side of the component mounting portion 3 of the core material 5 described above.
The height adjusting leg 21 is configured to be received by the backing protrusion 31 positioned on the back side of the skin material 6 through the skin material 6.

(Supplementary explanation 1)
Here, the above-mentioned “inside of the component mounting portion 3” refers to an internal region of the component mounting portion 3.

  The above-mentioned “extending toward the back surface of the skin material 6” is formed by integrally projecting from the core material 5 toward the back surface of the skin material 6 at the bottom edge portion 25 of the component mounting recess 11. is there.

  The above-mentioned “backing protrusion 31” is literally located on the back side of the skin material 6, and the leg portion 21 for adjusting the height of the interior component 4 attached to the component mounting portion 3 (substantially directly). It is designed to be able to reach the end. The backing protrusion 31 is installed so as to sink into the inside of the foamed layer 7 constituting the component attachment portion 3.

  It is most desirable that the backing protrusion 31 is of a height that directly contacts the back surface of the skin material 6. However, in reality, the core material 5, the foam layer 7, the skin material 6, and the interior part 4 (or the leg part 21 of the interior part 4) have errors and variations for each part. The back surface of the skin material 6 is slightly reached so that the small compressive deformation force of the foam layer 7 having a small thickness can be used effectively to allow or absorb these errors and variations. It is good also as the height etc. which do not do.

  More specifically, the core material 5, the foam layer 7, the skin material 6, the interior part 4, and the like are expected to have an error of about 0.1 mm to 0.2 mm and variations. Therefore, a gap of about 0.8 mm at maximum, which is the sum of these, is set on the tip side of the backing protrusion 31 so that a very thin foam layer 7 is interposed or formed in this gap. Also good.

  If this gap is initially set to be slightly larger, the backing protrusion 31 is gradually raised while the foaming mold is being scraped little by little during the trial development of the mounting substrate 8. By adjusting, it is possible to finish to the optimum height.

  Further, as shown in FIG. 1, the backing protrusion 31 has the above-described cutting line so as not to interfere with a processing tool such as a hot blade when the opening 13 is formed. It is formed in a state where it is retracted slightly outside 14 (retracting portion 32).

  The above-described “received by the backing protrusion 31” means that the backing protrusion 31 has the height adjustment leg 21 sandwiching the skin material 6 in the thickness direction of the mounting base 8. It is to receive. At this time, the foam layer 7 is not interposed at all between the tip of the backing protrusion 31 and the back surface of the skin material 6 as described above, or the foam layer 7 having a very small thickness is formed. By intervening, this slight foamed layer 7 is compressed and deformed to absorb the above errors and variations.

(Configuration 2)
At least a pair of the above-described backing protrusions 31 is provided with a position restricting portion 33 for restricting the position in the surface direction of the skin material 6 with respect to the core material 5 (only one is shown in FIG. 1). Shown).

(Supplementary explanation 2)
Here, the above-mentioned “position restricting portion 33” is for causing the alignment in the surface direction between the core material 5 and the skin material 6 set in the foam molding die during foam molding.

  The above-mentioned “plane direction” is a direction parallel to the surface of the mounting substrate 8. The surface direction includes a plurality of directions. In this case, at least one of the vertical direction and the vehicle width direction is assumed.

  The position restricting portion 33 is provided as a pair (a pair or a plurality of pairs) so as to be aligned with respect to both sides in the vertical direction and the vehicle width direction. Details of the position restricting unit 33 will be described later.

(Configuration 3)
The above-described position restricting portion 33 is a tapered portion 35 that is inclined toward the center of the above-described component mounting portion 3 as it proceeds to the back side of the above-described component mounting portion 3.

(Supplementary explanation 3)
Here, the above-mentioned “back side of the component mounting portion 3” is a direction from the skin material 6 side to the core material 5 side in the component mounting recess 11 (the bottom surface 12 thereof).

  The above-mentioned “center of the component mounting portion 3” is literally the center position of the component mounting portion 3 (the bottom surface 12 thereof).

  The “taper portion 35” described above has a linear inclined surface. However, the taper portion 35 may have a curved inclined surface. In this case, the taper portion 35 is configured to guide the corner portion 6a between the inner side surface and the bottom surface of the skin side concave portion.

  The taper portion 35 has an inclination angle and a length for easily setting the skin material 6. That is, if the inclination angle is too steep, it becomes difficult to set the skin material 6 on the core material 5, and conversely, if the inclination angle is too slow, the position adjustment in the surface direction of the skin material 6 with respect to the core material 5 is adjusted. Since the possible amount is reduced, for example, the inclination angle is in the range of about 30 ° to 60 °. Further, if the length of the taper portion 35 is long, the position restricting portion 33 becomes too high. On the other hand, if the length is short, the position adjustable amount with respect to the skin material 6 is reduced. It is preferable that the length of the foam layer 7 is about the thickness of the typical foam layer 7 or less.

In this case, the position restricting portion 33 is a positioning rib or the like that protrudes integrally from the core member 5 that forms the inner side surface 22 of the component mounting recess 11.
The position restricting portion 33 is embedded inside the foam layer 7 constituting the inner surface 22 of the component mounting recess 11 and embedded inside the foam layer 7 constituting the bottom surface 12 of the component mounting recess 11. It is formed integrally with the above-described backing protrusion 31 (backing rib) and constitutes a substantially L-shaped composite rib or the like in a side view.

(Configuration 4)
As shown in FIGS. 2 and 3, the above-described backing protrusion 31 is the main component of the foaming agent 9 injected between the core material 5 and the skin material 6 in order to form the foamed layer 7. It should be extended in the direction of flow.

(Supplementary explanation 4)
Here, the above-mentioned “main flow direction of the foaming agent 9” is literally the most around the component mounting portion 3 when the foaming agent 9 is filled into the foaming mold while foaming. It is the direction of main flow (main flow direction). The main flow direction of the foaming agent 9 differs depending on the installation position of the component mounting portion 3 on the mounting base 8.

  The above-mentioned “extending toward the main flow direction of the foaming agent 9” means that the backing protrusion 31 is provided so as to extend along the main flow direction of the foaming agent 9.

  In this case, as shown in FIG. 5 or FIG. 7, the foaming agent 9 is injected toward the rear of the vehicle from one position in the vehicle front-rear direction and in the center in the vehicle width direction on the instrument panel 1. Has been. Thus, for example, when the component mounting portion 3 is provided in the center of the instrument panel 1 in the vehicle width direction, the main flow direction of the foaming agent 9 is substantially from the front of the vehicle to the rear of the vehicle. It becomes.

  In the above case, for example, in FIGS. 2 and 3, foaming is directed downward in the figure with respect to the left and right end portions of the upper and lower sides in the vicinity of the four corners of the substantially rectangular component mounting portion 3. The backing protrusion 31 extends in the vertical direction in the figure so as to be parallel to the main flow direction of the agent 9.

  However, when the main flow direction of the foaming agent 9 is different from the above, the extending direction of the backing protrusion 31 is also directed to the main flow direction of the foaming agent 9 at that position. To do.

  On the other hand, structurally, the protrusion 31 for backing is extended toward a direction different from the main flow direction of the foaming agent 9, for example, a direction orthogonal to the main flow direction. And so on. That is, it is possible to install the backing protrusion 31 so as not to have the configuration described in the column of the configuration 4. In this case, it is needless to say that the effect of the configuration 4 cannot be obtained.

  For example, in FIG. 4, the main flow of the foaming agent 9 toward the lower side in the figure with respect to the upper and lower ends of the left and right side portions or the vicinity thereof in the vicinity of the four corners of the substantially rectangular component mounting portion 3. The protrusion 31 for backing is extended toward the left-right direction in the figure so as to be orthogonal to the direction.

(Configuration 5)
As shown in FIG. 3 and FIG. 4, a plurality of the above-described backing protrusions 31 are arranged with their positions shifted so as not to overlap with the main flow direction of the foaming agent 9 described above.

(Supplementary explanation 5)
Here, the above-mentioned “shifting the position” means that the plurality of backing protrusions 31 whose positions may be overlapped with respect to the main flow direction of the foaming agent 9 are the main components of the foaming agent 9. It is arranged so as to be retracted in a direction orthogonal to the flow direction.

  For example, in FIGS. 3 and 4, the backing protrusion 31 a and the backing protrusion 31 b provided at the center in the left-right direction of the upper and lower sides of the substantially rectangular component mounting portion 3 are shown in the lower part of the figure. The backing protrusion 31 is shifted in the left-right direction in the figure so as not to overlap the main flow direction of the foaming agent 9 toward the front.

  Although not particularly illustrated, for example, the backing protrusion 31 provided at the center in the vertical direction of the left and right sides of the substantially rectangular component mounting portion 3 is the main flow of the foaming agent 9 toward the left and right. The backing protrusion 31 can be displaced in the vertical direction so that it does not overlap in the direction.

<Effect> According to this embodiment, the following effects can be obtained.
(Operation effect 1)
By receiving the height adjusting leg portion 21 provided on the back surface side of the interior part 4 with the backing protrusion 31 positioned on the back surface side of the skin material 6 through the skin material 6. In the thickness direction of the mounting substrate 8, the interior component 4 can be formed without interposing the foam layer 7 having a large amount of compressive deformation between the backing protrusion 31 and the height adjusting leg 21. Since the surface matching can be performed, the surface alignment accuracy of the interior part 4 with respect to the mounting base 8 can be improved.

  In addition, the mounting base member 8 having the multilayer structure can be foam-molded with the component mounting portion 3 having the foam layer 7 in a state where the backing protrusion portion 31 for receiving the height adjusting leg portion 21 is received. In addition, since the backing protrusion 31 can function even if the foam layer 7 is present in the surroundings, it is troublesome to separately perform a troublesome process such as removing a part of the foam layer 7 in a later step. Is no longer necessary. Therefore, the processing man-hours and processing costs can be reduced accordingly. At this time, the foamed layer 7 present around the backing protrusion 31 does not interfere with the above-described surface matching.

  And since the multi-layer attachment base material 8 can be foam-molded so that the foam layer 7 is formed on the component mounting portion 3, foaming is performed without bypassing the component mounting portion 3 during foam molding. Since the agent 9 can be made to flow, the flow of the foaming agent 9 is not disturbed around the component mounting portion 3, and no voids are generated. be able to.

  On the other hand, for example, when the mounting base 8 is foam-molded so that the foamed layer 7 is not formed on the component mounting portion 3, the foaming agent 9 bypasses the periphery of the component mounting portion 3. Since the flow of the foaming agent 9 is disturbed, it is difficult to prevent the quality of the mounting substrate 8 from being deteriorated at the disturbed portion.

(Operation effect 2)
Since at least a pair of the above-described backing protrusions 31 includes the position restricting portion 33, when the mounting base 8 having a multilayer structure is formed by foam molding, the skin member 6 is formed by the position restricting portion 33. 5 can be accurately positioned. Thereby, the attachment base material 8 with high quality and high accuracy can be obtained.

(Operation effect 3)
As the position restricting portion 33 advances toward the back side of the component attachment portion 3, the skin material 6 is brought closer to the core material 5 side according to the taper portion 35 by being the tapered portion 35 inclined toward the center of the component attachment portion 3. Thus, the skin material 6 can be automatically moved to an appropriate position and adjusted by the tapered portion 35. Thereby, the attachment base material 8 in which the core material 5 and the skin material 6 are installed with high positional accuracy can be obtained constantly.

(Operation effect 4)
Since the backing protrusion 31 extends in the direction of the main flow of the foaming agent 9, the main flow of the foaming agent 9 is not easily obstructed by the backing protrusion 31. 9 is less likely to be disturbed, and accordingly, a high-quality multilayer base material 8 can be obtained.

(Operation effect 5)
By arranging a plurality of the backing protrusions 31 so as not to overlap with the main flow direction of the foaming agent 9 described above, the backing protrusions 31 are arranged by arrangement. Can prevent the main flow of the foaming agent 9 from being obstructed. Therefore, the foaming agent 9 is less likely to be disturbed, and accordingly, the mounting substrate 8 having a multilayer structure with higher quality can be obtained.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

DESCRIPTION OF SYMBOLS 3 Component attachment part 4 Interior component 5 Core material 6 Skin material 7 Foamed layer 8 Mounting base material 9 Foaming agent 21 Height adjustment leg 31 Backing protrusion part 33 Position control part 35 Taper part

Claims (5)

Interior parts are mounted on a component mounting part formed on a multi-layer mounting base that is formed by interposing a foam layer with cushioning properties between a rigid core material and a flexible skin material. As well as
By supporting the height adjustment leg provided on the back side of the interior part on the inner back of the part mounting part,
In the interior component matching structure installed so that the surface of the interior component is flush with the portion around the component attachment portion in the mounting base material,
The component mounting portion has an opening cut in the inner back portion by aligning the positions of the core material, the skin material, and the foam layer with a cutting line,
Providing a protrusion for backing that directly contacts the back surface of the skin material on the inner part of the component mounting portion of the core material,
The height adjustment legs are received by the backing protrusions located on the back side of the skin material through the skin material,
The interior part fitting structure according to claim 1, wherein the backing projecting portion is a rib extending toward the opening along the bottom surface of the component mounting portion with respect to the component mounting portion .   2. The interior component matching structure according to claim 1, wherein at least one pair of the protrusions for backing is provided with a position restricting portion for restricting a position in a surface direction of the skin material with respect to the core material.   The interior part matching structure according to claim 2, wherein the position restricting part is a tapered part that is inclined toward the center of the part attaching part as it advances to the back side of the part attaching part.   The protrusion for backing is extended toward a main flow direction of a foaming agent injected between the core material and a skin material to form the foamed layer. The interior part matching structure according to any one of claims 1 to 3.   5. The plurality of backing protrusions are arranged at different positions so as not to overlap with a main flow direction of the foaming agent. 6. The interior parts matching structure described in 1.