WO2014203617A1

WO2014203617A1 - Interior trim member and manufacturing device therefor

Info

Publication number: WO2014203617A1
Application number: PCT/JP2014/061453
Authority: WO
Inventors: 栄作池亀; 暢末木
Original assignee: テイ・エステック株式会社
Priority date: 2013-06-18
Filing date: 2014-04-23
Publication date: 2014-12-24
Also published as: JP2015000566A; JP5690377B2

Abstract

In this interior trim member (1): a branching wall (13) is connected at two connection sections (P1-P3) to an upright wall (11) and to the upright wall (11) and/or an extension section (12); the branching wall is configured to have a smaller surface area than the upright wall (11) and the extension section (12) and to be thinner than the upright wall (11) and the extension section (12); and, of the connection sections (P1-P3), the front surface layer at (P2 or P3), which is farther from the gate through which the resin is introduced during molding of the interior trim member, is configured from resin introduced from the upright wall, and the back surface layer is configured from resin introduced from the branching wall. Uneven luster of the design surface can be prevented without increased cost.

Description

Interior member and manufacturing apparatus thereof

The present invention relates to an interior member and an apparatus for manufacturing the interior member, and more particularly, to an interior member including a base material made of resin, and a branch wall branched from the back surface of the base material and connected to the base material and an apparatus for manufacturing the interior member. .

An interior member is disposed in the interior of the automobile and constitutes each part in the interior of the automobile. The interior member is composed of a plurality of parts, and the plurality of parts are assembled.
For example, an interior member such as a door trim is disposed on a door of an automobile, and an armrest is installed on the door trim so that a seated passenger can put an elbow on the door trim.
Such an interior member is often a base material molded article having a predetermined rigidity such as a foamed resin.
Such interior members are not only required to have strength and durability, but are also required to have a design property because part or all of them are expected to be exposed to the occupant's viewing range. Therefore, weight reduction is also required.
Moreover, since it is an industrial product, manufacturing efficiency, cost performance, etc. are also requested | required.

By the way, such an interior member includes a base material made of a resin and a branch wall that branches from the back surface of the base material and is connected to the base material.
For example, the upper part of the base material to which the armrest is attached is bent in the direction of the door housing, but a branch wall is formed to reinforce the inner corner.

Thus, in manufacturing an interior member composed of a base material made of resin and a branch wall branched from the back surface of the base material, injection molding using a mold is usually performed.
For example, as in the conventional example shown in FIGS. 7 and 8, a resin injection gate T is provided in the vicinity of a structure close to the standing wall, and a resin is injected from the closest gate to the mold cavity to perform molding. is there.

However, when this method is used, the volume of the cavity on the base material side is much larger than the cavity on the branch wall side (the occupied area of the branch wall of the interior member that is the product is In particular, when the base material is thin-walled, the fluid resistance on the base material side increases, so the time for the resin to reach the observation point P3 is the base material side flow path Y2. The branch wall side flow path Y1 is shorter than that.

For this reason, at the observation point P3 of the resin, the resin that has reached from the branch wall flow path Y1 reaches first and is cooled, so that a surface temperature difference from the resin that has reached after the flow path Y2 occurs.
This surface temperature difference becomes gloss unevenness, which may affect the design of the product (see FIG. 9).
Further, when such uneven gloss due to surface temperature difference occurs, it can be dealt with by performing partial coating on the part, but this is disadvantageous in terms of cost and man-hours.

For this reason, a different shaping | molding method can be considered as a method which does not produce gloss unevenness on a design surface (for example, refer patent document 1).
Patent Document 1 discloses a method for manufacturing a vehicle interior member.
According to this technique, the resin layer on the substrate side and the resin layer on the side where the branch wall is formed are molded separately.
That is, by using two types of concave molds with respect to the core mold, the part provided on the branch wall is molded.
In this way, since it can be molded separately on the back surface on which the branch wall is formed and the surface that becomes the design surface, it is possible to prevent the occurrence of gloss unevenness that causes a temperature difference on the surface that becomes the design surface. it can.

Japanese Patent Laid-Open No. 2001-114032

However, in the technique disclosed in Patent Document 1, it is possible to prevent the occurrence of gloss unevenness as a temperature difference on the surface to be the design surface, but the number of molds used is increased. This is disadvantageous in terms of cost.
Therefore, it has been desired to develop a molding method that eliminates gloss unevenness on the design surface caused by forming the branch wall without increasing the number of molds.

The present invention has been made in view of the above-described problems, and the object thereof is an interior member having a branched wall formed by branching from a base material, and uneven gloss of the design surface occurs without increasing the cost. An object of the present invention is to provide an interior member and a manufacturing apparatus for the same.
Another object of the present invention is to reduce the cost while preventing unevenness of the design surface, and to reduce the thickness and to realize further weight reduction and its interior member. It is to provide a manufacturing apparatus.

According to the interior member of the present invention, the subject is a resin plate-like standing wall portion, a resin plate-like extending portion extending at a predetermined angle with the standing wall portion, and the standing wall portion. An interior member having a branch wall disposed at an inner corner formed by a back surface and a back surface of the extending portion and functioning as a structure, wherein the branch wall includes the standing wall portion and the standing wall. And at least one of the extending portion and the two connecting portions, the branch wall is configured to have a smaller surface area than the standing wall portion and the extending portion, The thickness of the branch wall is configured to be smaller than the standing wall portion and the extending portion, and the surface of the connecting portion on the side farther from the gate where resin is introduced when molding the interior member The layer is made of resin introduced from the standing wall, and the back layer is Is solved by that consists of the introduced resin from 岐壁.

Further, according to the interior member manufacturing apparatus of the present invention, the subject is a resin plate-like standing wall portion, and a resin plate-like extension portion extending at a predetermined angle with the standing wall portion. A branch wall disposed at an inner corner formed by a back surface of the standing wall portion and a back surface of the extended portion, and having a branch wall functioning as a structure, wherein the branch wall is The standing wall portion and at least one of the standing wall portion and the extending portion are connected by two connecting portions, and the branch wall is smaller than the standing wall portion and the extending portion. The branch wall is configured to have a surface area, and the branch wall is configured to be smaller than the standing wall portion and the extending portion, and the manufacturing apparatus is a resin molding apparatus, The gate into which resin is introduced during molding of the member is formed in the cavity in the cavity. The other connecting portion formed on at least one of the standing wall portion and the extending portion is disposed on one side of the cavity, and is disposed in the vicinity of the portion where the one connecting portion is formed. The surface layer of the other connecting portion on the side farther from the gate of the connecting portions is the standing wall than the portion where the connecting portions are formed. This is solved by being formed of a resin introduced from the portion and the back layer being formed of a resin introduced from the branch wall.

In the present application configured as described above, the surface layer is made of resin introduced from the standing wall portion and the back surface layer is made of resin introduced from the branch wall at the connecting portion of the branch wall (the side far from the gate). Composed.
Since it is comprised in this way, it can prevent effectively that gloss unevenness arises in a surface layer.
The “structure” refers to parts such as a clip attachment portion and a boss installation portion, for example.

Specifically, in the interior member described above, the connecting portion is provided at two places, both of which are provided on the standing wall portion.
More specifically, the connecting portion on one side of the two connecting portions is disposed on the side close to the gate, and the connecting portion on the other side is more than the connecting portion on one side. It is arrange | positioned at the side near an extension part.
Since the branch wall functions as a structure (for example, a clip attachment portion, a boss installation portion, etc.) formed at the inner corners of the standing wall portion and the extension portion, its surface area is smaller than that of the standing wall portion and the extension portion. Therefore, conventionally, when the inner corner is formed in this way, the resin injected from the gate can be cooled by flowing first from the branch wall to the other connecting portion (the side far from the gate). (This causes uneven gloss).
However, unlike the conventional configuration that branches from the standing wall portion and joins to the extending portion, the configuration according to the present invention is such that the branch wall branches from the standing wall portion and joins to the standing wall portion. (That is, approximately U-shaped, loop, etc.).
Therefore, the time for the resin flowing in from the gate to reach the other connecting portion (the side far from the gate) through the branch wall can be delayed, and both connecting portions are provided in the standing wall portion. Compared with the case where the connecting portion is formed in the installation portion, the time required for the resin to reach the other connecting portion (the side far from the gate) from the gate through the standing wall portion can be shortened.
Therefore, it is possible to effectively prevent the resin from the branch wall from reaching the first side and being cooled at the other connecting portion (the side far from the gate) and causing uneven gloss.
In other words, at the time of molding, at the connecting part (the other connecting part) disposed on the side close to the extending part, the resin from the branch wall first arrives and the resin from this branch wall is mixed into the surface layer. Then, this causes gloss unevenness, but since the surface layer is made of resin that has reached from the standing wall portion, gloss unevenness can be prevented.

Furthermore, as another specific measure, the branch wall is provided so as to connect the standing wall portion and the extending portion, and the branch wall connects the standing wall portion and the extending portion. It is preferable to be configured to be longer than the shortest route.
As another specific measure, it is preferable that at least one of the extending portion and the standing wall portion is formed with adjusting means formed to increase the thickness.
At this time, the adjusting means is formed on at least one of the boundary between the extending portion and the standing wall portion and the connecting portion on the other side and the boundary side of the standing wall portion. It is preferable that the connecting portion is formed to be thicker than the thickness on the side away from the boundary.
As another specific measure, the branch wall is provided so as to communicate the standing wall portion and the extending portion, and the branch wall is formed with a recess as the adjusting means. It is preferable that the thickness of the recess is small.

In any case, the resistance of the flow path from the standing wall part to the extending part is reduced, or the branch wall that is the path from the one side connection part to the other side connection part has an obstacle that causes resin flow resistance. By making it, it is possible to adjust the arrival time of the resin in multiple paths from the gate to the other side connecting part, so even if the other connecting part is formed in the extended part, The arrival of the resin to the connecting portion can be delayed, and uneven gloss can be effectively prevented.

Further, as a specific method for securing a route longer than the shortest route from the connecting portion on one side to the connecting portion on the other side in the branch wall, the branch wall is connected on the one side close to the gate of the standing wall portion. It extends from the part so as to be substantially parallel to the extending part, and then bends to reach the connecting part on the other side, and the distance from the connecting part on one side to the connecting part on the other side is It may be configured to be bent a plurality of times so as to reach a distance longer than the shortest distance from the connecting portion on one side to the connecting portion on the other side.

Further, in the above interior member manufacturing apparatus, in the cavity, the portion where the other connecting portion is formed is disposed at the portion where the extending portion is formed, and the cavity forming the branch wall Extends from the location where the connecting portion on one side is formed to be substantially parallel to the location where the extending portion is formed, then bends to reach the location where the connecting portion on the other side is formed. A gap between the boundary between the extending portion and the standing wall portion and the connecting portion on the other side is located at the position where the extending portion of the cavity is formed. A first adjusting means formed so as to be larger than the gap on the direction side away from the boundary, and a position where the concave wall is formed and the gap is reduced at the position where the branch wall of the cavity is formed The second The distance from the position where the connecting part on one side is formed to the position where the connecting part on the other side is formed is bent a plurality of times so as to be longer than the shortest distance. When at least one adjusting means is applied among the third adjusting means configured to reach the position where the other side connecting part is formed from the position where the one side connecting part is formed, This is preferable because the adjusting means can be set appropriately and gloss unevenness can be prevented.

According to the present invention, the connecting portion (the side far from the gate) of the branch wall can be formed of the resin introduced from the standing wall portion on the surface layer and the resin introduced from the branch wall on the back surface layer. Therefore, it is possible to effectively prevent gloss unevenness from occurring on the surface layer.
According to the present invention, it is possible to delay the time for the resin flowing in from the gate to reach the other connecting portion (the side far from the gate) through the branch wall, and both the connecting portions are provided in the standing wall portion. Compared with the case where the connecting portion is formed in the extending portion, the time for the resin to reach the other connecting portion (the side far from the gate) from the gate through the standing wall portion can be shortened. Therefore, it is possible to effectively prevent the resin from the branch wall from reaching the first connecting portion (on the side far from the gate) and being cooled to cause uneven gloss.
According to the present invention, it is possible to reduce the resistance of the flow path from the standing wall portion to the extending portion, or to the branch wall that is the path from the one-side connecting portion to the other-side connecting portion, resulting in a resin flow resistance. Thus, the arrival time of the resin in a plurality of paths from the gate to the connecting portion on the other side can be adjusted, and gloss unevenness can be effectively prevented.
For this reason, the other connection part can be formed in an extending part, preventing gloss unevenness effectively.
According to the present invention, specifically, a route longer than the shortest route from the connecting portion on one side to the connecting portion on the other side can be secured.

It is a schematic explanatory drawing inside the vehicle door which concerns on 1st embodiment of this invention. It is an external appearance explanatory view showing the first interior member concerning a first embodiment of the present invention. It is a schematic diagram which shows the cross-sectional structure and resin flow path of the 1st interior member which concern on 1st embodiment of this invention. It is explanatory drawing which shows the cross-sectional structure and resin flow path of the 2nd interior member which concern on 2nd embodiment of this invention. It is explanatory drawing which shows the cross-sectional structure and resin flow path of the 3rd interior member which concern on 3rd embodiment of this invention. It is explanatory drawing which shows the cross-sectional structure and resin flow path of the 4th interior member which concern on 4th embodiment of this invention. It is an external view which shows the interior member which concerns on a prior art example. It is explanatory drawing which shows the cross-sectional structure and resin flow path of the interior member which concerns on a prior art example. It is explanatory drawing which shows the gloss nonuniformity of the interior member which concerns on a prior art example.

Hereinafter, an interior member and an apparatus for manufacturing the same according to an embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the drawings.
In addition, embodiment described below is only the illustration which showed application of this invention, and does not limit this invention.
That is, the shape, dimensions, arrangement, and the like of the members described below can be changed and improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.

1 to 3 show a first embodiment of the present invention. FIG. 1 is a schematic explanatory view of the inside of a vehicle door, FIG. 2 is an external explanatory view showing a first interior member, and FIG. It is a schematic diagram which shows the cross-sectional structure and resin flow path of an interior member.
FIG. 4 shows the second embodiment of the present invention, and is an explanatory view showing a cross-sectional configuration and a resin flow path of the second interior member.
Further, FIG. 5 shows a third embodiment of the present invention, and is an explanatory view showing a cross-sectional configuration of a third interior member and a resin flow path.
Further, FIG. 6 shows a fourth embodiment of the present invention, and is an explanatory view showing a cross-sectional configuration of a fourth interior member and a resin flow path.

(First embodiment)
The first interior member 1 according to this embodiment will be described with reference to FIGS. 1 to 3.
In addition, in this embodiment, although demonstrated based on the door trim D as an interior material for vehicles, it is possible to apply not only to this but to attachment of various interior materials for vehicles. For example, the present invention can be applied to an instrument panel or roof lining provided with a resin member, or a seat back provided with a resin member.
That is, any interior member having a configuration in which the branch wall protrudes from the base material portion can be applied to any part.

As shown in FIG. 1, the 1st interior member 1 which concerns on this embodiment is the door trim D, and is a lining material of the door for vehicles.
A door pocket D1 and the like are disposed on the vehicle compartment side of the vehicle door. In the present embodiment, the X portion in FIG.
The first interior member 1 according to this embodiment includes a first standing wall portion 11, a first extending portion 12 that is bent and extended from one end side of the first standing wall portion 11, and a first standing wall portion 11. And a first branch portion 13 that is branched from the back surface side and formed as a structure.
In the present embodiment, the “structure” refers to, for example, a clip attachment portion, a boss installation portion, or the like. Of course, it is not the meaning which excludes the other thing which has the same structure, and is an illustration to the last, and the same structure and the equivalent are contained in the range.
The first interior member 1 is made of a hard synthetic resin such as polypropylene.
As shown in FIG. 3, the first branch portion 13 branches from the lower side (the side close to the gate T) of the first standing wall portion 11, and the upper side (the first extending portion 12) of the first standing wall portion 11. Is formed in a substantially U-shaped cross section so as to be connected to the side on which is formed.

In the present embodiment, a portion of the first branch portion 13 that extends substantially in parallel with the direction in which the first extending portion 12 extends from below the first standing wall portion 11 is referred to as a “first bottom portion 13A”. A portion that stands substantially parallel to the first standing wall portion 11 from the end side portion of the bottom portion 13A is referred to as a “first side wall portion 13B”. Further, a portion that extends substantially parallel to the first extending portion 12 from the upper end side of the first side wall portion 13B and reaches the upper side of the first standing wall portion 11 is referred to as a “first top surface portion 13C”.
Note that both sides of the side portion of the first side wall portion 13B are closed, and this closed wall is referred to as a “first closed wall 13D”.

Thus, in the present embodiment, the first branch portion 13 is formed in a substantially U-shaped cross section by the first bottom portion 13A, the first side wall portion 13B, and the first top surface portion 13C.
Further, the first branch portion 13 is a so-called “structure part” formed at the inner corner of the first standing wall portion 11 and the first extending portion 12, and therefore the area (and the longitudinal direction) of the first standing wall portion 11. The length) is configured to be sufficiently larger than the area (and the length in the same direction) of the first side wall portion 13B.
In addition, the first standing wall portion 11 and the first extending portion 12 tend to be thinned for weight reduction, and therefore, the wall thickness is larger than that of the first branch portion 13 that is meaningful for reinforcing the inner corner. It is formed small.

Hereinafter, the point where the first branching portion 13 branches from the lower side of the first standing wall portion 11 (the side close to the gate T) will be referred to as “lower branching point P1”, and the upper side of the first standing wall portion 11 (second The point where the extended portion 12 is formed) and the first branch portion 13 are referred to as “upper connection point P2”.
In the first extending portion 12, a point immediately above the first side wall portion 13B is set as an “observation point P3”.
The lower branch point P1 corresponds to “one side connection portion”, and the upper connection point P2 corresponds to “the other side connection portion”.

In the conventional example (see FIGS. 7 and 8), the upper connection point P2 and the observation point P3 are the same.
Similarly to the above-described relationship, the conventional branching portion 1013 is a so-called “structure portion” formed at the inner corners of the conventional standing wall portion 1011 and the conventional extending portion 1012, and thus the area of the conventional standing wall portion 1011 ( And the length in the longitudinal direction) are configured to be sufficiently larger than the area (and the length in the same direction) of the conventional side wall 1013B.

For this reason, when the gate T is arrange | positioned at the lower end side of the conventional standing wall part 1011, the resin which flows through the flow path Y1 reaches the observation point P3 earlier than the resin which flows through the flow path Y2.
Further, similarly to the above-described relationship, the conventional standing wall portion 1011 and the conventional extending portion 1012 are thinner than the conventional branching portion 1013, so that the cavity width in molding is also the same as that of the conventional standing wall portion 1011 and the conventional extending portion. The cavity width at the position of the installation portion 1012 is smaller than the cavity width at the position of the conventional branch portion 1013.

Therefore, the flow resistance of the resin at the positions of the conventional standing wall portion 1011 and the conventional extending portion 1012 is larger than the flow resistance of the resin at the position of the conventional branch portion 1013, and this phenomenon causes the observation point of the resin flowing through the flow path Y2. The arrival time of P3 is further delayed than the arrival time of the observation point P3 of the resin flowing through the flow path Y1.
Therefore, at the observation point P3, the resin reaching from the flow path Y1 is cooled first, and this phenomenon may cause gloss unevenness (see FIG. 9) of the final product.

However, in the present embodiment, as described above, the first branch portion 13 branches from the lower side of the first standing wall portion 11 (the side close to the gate T) and the upper side of the first standing wall portion 11 (the first side). It is formed in a substantially U-shaped cross section so as to be connected to the side where the extended portion 12 is formed.
That is, the resin from the flow path Y1 passing through the first branch portion 13 merges with the resin in the flow path Y2 at the upper connection point P2.
Therefore, it is possible to extend the time for the resin merge from the flow path Y1 to match the arrival of the resin from the flow path Y2 to the upper connection point P2.
For this reason, it is possible to effectively suppress the occurrence of gloss unevenness, which has been regarded as a problem in the conventional example.
Moreover, since the time of the resin merge from the flow path Y1 can be extended, the first standing wall portion 11 and the first extending portion 12 can be thinned without causing gloss unevenness.

(Second embodiment)
Next, a second embodiment will be described with reference to FIG.
The description of the same configuration as in the first embodiment is omitted.
The second interior member 21 according to the second embodiment includes a second standing wall portion 211, a second extending portion 212, and a second branch portion 213.
As shown in FIG. 4, the second branch portion 213 according to the present embodiment branches from the lower side (the side close to the gate T) of the second standing wall portion 211 and is connected to the second extending portion 212. In addition, it is formed in a substantially L-shaped cross section.

In the present embodiment, a portion of the second branch portion 213 that extends substantially in parallel with the direction in which the second extending portion 212 extends from below the second standing wall portion 211 is referred to as a “second bottom portion 213A”. A portion that rises substantially parallel to the second standing wall portion 211 from the end side portion of the bottom portion 213A and reaches the second extending portion 212 is referred to as a “second side wall portion 213B”.
In this configuration, there is no configuration corresponding to the first top surface portion 13 </ b> C constituting the first branch portion 13.
For this reason, the upper connection point P2 according to the first embodiment is the same as the observation point P3 in the present embodiment. Therefore, the lower branch point P1 corresponds to the “one side connection portion”, and the observation point P3 ( (Corresponding to the upper connecting point P2) corresponds to the “other side connecting portion”.
As in the first embodiment, both sides of the side portion of the second side wall portion 213B are closed, and this closed wall is referred to as a “second closed wall 213D”.

In the present embodiment, the configuration of the second extending portion 212 is changed.
Specifically, in the second extending portion 212, there is a wall at a position closer to the gate T than the observation point P <b> 3, which is a junction with the second branch wall 213 (that is, on the boundary portion side with the second standing wall portion 212). A second thick part G21 having an increased thickness was formed.
The second thick part G21 is formed so that the second extending part 212 is thicker than the observation point P3 on the side farther from the gate T.
For this reason, the flow resistance reaching the observation point P3 of the flow path Y2 can be reduced, and the resin arrival time from the flow path Y2 to the observation point P3 can be promoted.
Therefore, similarly to the first embodiment, it is possible to prevent the occurrence of uneven gloss, and the second standing wall portion 211 and the second extending portion 212 can be formed thin.
The second thick portion corresponds to “adjusting means” and “first adjusting means”.

(Third embodiment)
Next, a third embodiment will be described with reference to FIG.
The description of the same configuration as the first embodiment and the second embodiment is omitted and simplified.
The third interior member 31 according to the third embodiment includes a third standing wall portion 311, a third extending portion 312, and a third branch portion 313.
As shown in FIG. 5, the third branch portion 313 according to the present embodiment branches from a lower side (side closer to the gate T) of the third standing wall portion 311 and is connected to the third extending portion 312. In addition, it is formed in a substantially L-shaped cross section.

In the present embodiment, a portion of the third branch portion 313 that extends substantially in parallel with the direction in which the third extending portion 312 extends from below the third standing wall portion 311 is referred to as a “third bottom portion 313A”. A portion that rises substantially parallel to the third standing wall portion 311 from the end side portion of the bottom portion 313A and reaches the third extending portion 312 is referred to as a “third sidewall portion 313B”.
In the said structure, in 1st embodiment, there is no structure corresponded to the 1st top | upper surface part 13C which comprised the 1st branch part 13. FIG.
For this reason, the upper connection point P2 according to the first embodiment is the same as the observation point P3 in the present embodiment. Therefore, the lower branch point P1 corresponds to the “one side connection portion”, and the observation point P3 ( (Corresponding to the upper connecting point P2) corresponds to the “other side connecting portion”.
As in the first embodiment, both sides of the side portion of the third side wall portion 313B are closed, and this closed wall is referred to as “third closed wall 313D” (not shown: similar to the above embodiment). Is blocked).

In the present embodiment, the configuration of the third side wall portion 313B is changed.
Specifically, in this embodiment, the limiting recess G31 is formed.
The limiting recess G31 is perpendicular to the direction in which the third side wall portion 313B rises toward the third extending portion 312 on the one surface of the third side wall portion 313B (the surface facing the side where the third standing wall portion 311 is disposed). It is a groove formed across the direction.
Therefore, the thickness of the portion where the limiting recess G31 is formed is smaller than the other portions.
As described above, the restriction recess G31 causes flow path resistance in the flow path Y1, and the resin arrival time from the flow path Y1 to the observation point P3 can be delayed.
Therefore, the occurrence of gloss unevenness can be prevented in the same manner or more efficiently as in the first embodiment and the second embodiment, and the third standing wall portion 311 and the third extending portion 312 are formed thin. be able to.
The limiting recess G31 corresponds to “adjusting means” and “second adjusting means”.

(Fourth embodiment)
Next, a fourth embodiment will be described with reference to FIG.
The description of the same configuration as in the first embodiment to the third embodiment is omitted or simplified.
The fourth interior member 41 according to the fourth embodiment includes a fourth standing wall portion 411, a fourth extending portion 412, and a fourth branch portion 413.
As shown in FIG. 6, the fourth branch portion 413 according to the present embodiment branches from the lower side (the side close to the gate T) of the fourth standing wall portion 411 and is connected to the fourth extending portion 412. Is formed.

In the present embodiment, a portion of the fourth branch portion 413 that extends substantially in parallel with the direction in which the fourth extending portion 412 extends from below the fourth standing wall portion 411 is referred to as a “fourth bottom portion 413A”. A portion that reaches the fourth extending portion 412 from the end side portion of the four bottom portions 413A along the direction in which the fourth standing wall portion 411 rises is referred to as a “fourth side wall portion 413B”.
In this configuration, there is no configuration corresponding to the first top surface portion 13 </ b> C constituting the first branch portion 13.
For this reason, the upper connection point P2 according to the first embodiment is the same as the observation point P3 in the present embodiment. Therefore, the lower branch point P1 corresponds to the “one side connection portion”, and the observation point P3 ( (Corresponding to the upper connecting point P2) corresponds to the “other side connecting portion”.
As in the first embodiment, both sides of the side portion of the fourth side wall portion 413B are closed, and this closed wall is referred to as a “fourth closed wall 413D” (not shown: similar to the above embodiment). Is blocked).

In the present embodiment, the configuration of the fourth side wall portion 413B is changed.
Specifically, in the present embodiment, the fourth side wall portion 413B is formed in a step shape.
That is, after standing up in the direction of the fourth extending portion 412 once from the fourth bottom portion 413A, it is bent in the direction of the fourth standing wall portion 411 (substantially parallel to the fourth extending portion 412), and again in the direction of the fourth extending portion 412. Step shape that rises in the direction of 4th extending portion 412 after being bent again in a direction away from the fourth standing wall portion 411 (substantially parallel to the fourth extending portion 412). It is formed to become.
This staircase shape is the flow path extension G41, which corresponds to “adjusting means” and “third adjusting means”.
Thereby, since the path | route which goes to the 4th extension part 412 from the gate T through the flow path Y1 becomes long, the resin arrival time to the observation point P3 from the flow path Y1 can be delayed.

Thus, in the present embodiment, the resin arrival time from the flow path Y1 to the observation point P3 can be delayed by the flow path extension G41 (that is, the step shape of the fourth side wall section 413B).
Therefore, the occurrence of uneven gloss can be prevented in the same manner or more effectively as in the first to third embodiments, and the thickness of the fourth standing wall portion 411 and the fourth extending portion 412 is reduced. be able to.

DESCRIPTION OF SYMBOLS 1 1st interior member 11 1st standing wall part 12 1st extension part 13 1st branch part 13A 1st bottom part 13B 1st side wall part 13C 1st top surface part 13D 1st closure wall 21 2nd interior member 211 2nd standing wall part 212 2nd extension part 213 2nd branch part 213A 2nd bottom part 213B 2nd side wall part 213D 2nd obstruction | occlusion wall G21 2nd thick part (adjustment means, 1st adjustment means)
31 3rd interior member 311 3rd standing wall part 312 3rd extension part 313 3rd branch part 313A 3rd bottom part 313B 3rd side wall part 313D 3rd obstruction | occlusion wall G31 Restriction recessed part (adjustment means, 2nd adjustment means)
41 4th interior member 411 4th standing wall part 412 4th extension part 413 4th branch part 413A 4th bottom part 413B 4th side wall part G41 Flow path extension part (adjustment means, 3rd adjustment means)
413D 4th closing wall 1011 Conventional standing wall part 1012 Conventional extension part 1013 Conventional branch part D Door trim D1 Door pocket P1 Lower branch point (one side connection part)
P2 upper connecting point (in the first embodiment, the connecting portion on the other side)
P3 observation point (in the second to fourth embodiments, the other side connecting portion)
T gate

Claims

A resin plate-like standing wall,
A resin plate-like extending portion extending at a predetermined angle with the standing wall portion;
An interior member having a branch wall disposed at an inner corner formed by a back surface of the standing wall portion and a back surface of the extending portion, and functioning as a structure,
The branch wall is connected by two connecting portions of the standing wall portion and at least one of the standing wall portion and the extending portion,
The branch wall is configured to have a smaller surface area than the standing wall portion and the extending portion, and the thickness of the branch wall is configured to be smaller than the standing wall portion and the extending portion. And
Among the connecting portions, the surface layer on the side far from the gate where the resin is introduced when molding the interior member is composed of the resin introduced from the standing wall portion, and the back layer is the resin introduced from the branch wall. It is comprised by the interior member characterized by the above-mentioned.
2. The interior member according to claim 1, wherein the connecting portion is provided at two locations, both of which are provided on the standing wall portion.
The connection part on one side of the two connection parts is disposed on the side close to the gate, and the connection part on the other side is closer to the extension part than the connection part on one side. The interior member according to claim 2, wherein the interior member is disposed.
The branch wall is provided so as to communicate the standing wall portion and the extended portion,
The interior member according to claim 1, wherein the branch wall is configured to be longer than a shortest route connecting the standing wall portion and the extended portion.
2. The interior member according to claim 1, wherein adjusting means formed so as to increase in thickness is formed on at least one of the extending portion and the standing wall portion.
The adjusting means is formed on at least one of a boundary between the extending portion and the standing wall portion and the connecting portion on the other side and the boundary side of the standing wall portion, and the connecting portion on the other side. The interior member according to claim 5, wherein the interior member is formed to be thicker than a thickness on a side away from the boundary.
The branch wall is provided so as to communicate the standing wall portion and the extended portion,
2. The interior member according to claim 1, wherein a concave portion as the adjusting means is formed in the branch wall, and the thickness of the concave portion is small.
The branch wall extends from the connecting portion on the one side near the gate of the standing wall portion so as to be substantially parallel to the extending portion, and then bends to reach the connecting portion on the other side,
The distance from the connecting portion on one side to the connecting portion on the other side is bent a plurality of times so as to be longer than the shortest distance from the connecting portion on one side to the connecting portion on the other side. The interior member according to claim 4, wherein the interior member is configured to reach the interior member.
A resin plate-like standing wall portion, a resin plate-like extension portion extending at a predetermined angle with the standing wall portion, a back surface of the standing wall portion, and a back surface of the extension portion are formed. An interior member manufacturing apparatus having a branch wall disposed at an inner corner and functioning as a structure,
The branch wall is connected by two connecting portions of the standing wall portion and at least one of the standing wall portion and the extending portion,
The branch wall is configured to have a smaller surface area than the standing wall portion and the extending portion, and the thickness of the branch wall is configured to be smaller than the standing wall portion and the extending portion. And
The manufacturing apparatus is a resin molding apparatus,
The gate into which the resin is introduced when the interior member is molded is disposed in the cavity in the vicinity of the portion where the one-side connecting portion formed on the standing wall portion is molded, and the standing wall portion and the extension The other connecting portion formed on at least one of the portions is disposed at a position spaced apart from the gate in the cavity as compared to a location where the one connecting portion is formed.
Of the connecting portions, the surface layer of the other connecting portion that is far from the gate is made of resin introduced from the standing wall portion, and the back surface layer is made of resin introduced from the branch wall. An apparatus for manufacturing an interior member formed as described above.
In the cavity, the portion where the other side connecting portion is formed is disposed at the portion where the extending portion is formed,
The cavity forming the branch wall extends from the location where the connecting portion on one side is formed to be substantially parallel to the location where the extending portion is formed, and then bends to form the connecting portion on the other side. Has reached the point where
In the position where the extended portion of the cavity is formed, the gap between the boundary between the extended portion and the standing wall portion and the connecting portion on the other side is from the connecting portion on the other side to the boundary. First adjusting means formed to be larger than the gap on the direction side away from
A second adjusting means configured to form a concave portion and a position where the gap is reduced at the position where the branch wall of the cavity is formed;
The distance from the position where the connecting part on one side is formed to the position where the connecting part on the other side is formed is bent a plurality of times so as to be longer than the shortest distance, and the one side is At least one adjusting means is applied among the third adjusting means configured to reach from the position where the connecting portion is formed to the position where the other connecting portion is formed. Item 10. The interior member manufacturing apparatus according to Item 9.