JP6130548B2 - Plastic molded product - Google Patents

Description

  The present invention relates to a resin molded product provided with a stitch pattern.

  Vehicle interior members (instrument panels, floor consoles, etc.) disposed in passenger compartments of automobiles, etc. are made by sewing a plurality of skin pieces made of genuine leather or a resin sheet shaped like the genuine leather with thread. There is one in which the texture of the design surface is improved by arranging the material on the surface of the base material. There are various methods for stitching the skin pieces. For example, in a state where two pieces of skin pieces 10 and 10 are overlapped, the edge portion is stitched with the thread 12 (see FIG. 10 (a)), and one side is based on this stitched portion. There is a method called single stitch (see FIG. 10 (b)) in which the outer skin piece 10 is folded back and the outer skin piece 10 folded in triplicate is further sewn with a thread 12. As shown in FIG. 10 (b), the design surface 14 of the skin piece 10 stitched by a single stitch has a seam (out stitch) on the upper skin piece 10 along the seam 16 of the two skin pieces 10,10. ) 18 appears, and a stitch pattern in which a seam (in-stitch) 20 slightly appears from the step-like seam 16 is formed. In addition, a method called double stitching is a method in which two skin pieces 10 and 10 are overlapped and the edge portion is stitched with a thread 12 (see FIG. 10 (a)). 10 and 10 are folded back so as to be separated from each other, and the overlapping skin pieces 10 are sewn together with a thread 12 (see FIG. 11). As shown in FIG. 11, on the design surface 14 of the skin piece 10 stitched by double stitches, a pair of seams (out stitches) 18 along the seam 16 across the seam 16 of the two skin pieces 10, 10, A stitch pattern in which a seam (in-stitch) 20 slightly appears from the concave seam 16 as 18 appears.

  However, since it takes time and cost to stitch the skin piece 10, a vehicle interior member having a stitch pattern reproduced by forming a seam has been proposed (see, for example, Patent Document 1). The stitch pattern by molding is integrally formed on the surface of the obtained skin material by performing injection molding or the like with a molding die provided with an uneven portion having a shape obtained by inverting the stitch pattern on the molding surface.

JP 2010-184487 A

  The member provided with the stitch pattern disclosed in Patent Document 1 has a seam of the stitch pattern formed from a part of the resin material for molding the skin material. For this reason, since the seam is the same color as the surface of the skin material, the stitch pattern is difficult to stand out, and there is a problem that the stitch pattern does not look like the real thing.

  That is, the present invention has been proposed in order to suitably solve these problems related to the prior art, and an object thereof is to provide a resin molded product provided with a stitch pattern closer to the real thing. To do.

In order to overcome the above-mentioned problems and achieve the intended purpose, the resin molded product of the invention according to claim 1 of the present application is
It is a resin molded product with a pseudo stitch pattern formed on the design surface,
A first member formed by arranging a plurality of thread portions protruding on the design surface side on the front side;
A second member formed so as to cover the front side of the first member in a state where the protruding end portion of the thread portion is exposed;
The surface of the second member forming the design surface and the protruding end portion of the thread portion exposed from the second member are different from each other in color, and the stitch pattern seam is constituted by a plurality of thread portions,
In the second member, a seam portion forming a pseudo seam is formed on the surface,
The first member is formed with a first thread portion that forms an out-stitch extending along the seam in the stitch pattern so as to follow the seam portion, and the inset exposed in the seam in the stitch pattern. A second stitch portion forming a stitch is formed at a portion of the first member corresponding to the joint portion ;
The out-stitch and the in-stitch are both in the state in which the second member is exposed with the protruding end portions of the first and second thread portions provided on the first member exposed on the upper surface of the second member. The gist is that it is formed so as to cover one member .
According to the first aspect of the present invention, the first member is formed with the stitch portion forming the stitch pattern seam, and the stitch portion is exposed from the second member forming the design surface. The degree of freedom of each color, shape, and the like can be improved for the design surface that forms a pseudo stitch pattern in combination with the surface of the second member that forms the periphery of the portion. Therefore, the stitch pattern can be made more authentic.
The stitch pattern can be made more authentic by forming the seam portion, the first thread portion, and the second thread portion in accordance with the seam and seam that are formed when the leather or the like is actually sewn together.

In the invention which concerns on Claim 2, the said 2nd member is formed in the step shape so that the said seam part may make a level | step difference in the said design surface,
The first stitch portion is provided so as to be exposed on one design surface side that is raised from the other design surface side with the joint portion interposed therebetween, and the second portion is provided at a boundary portion between the other design surface side and the joint portion. The gist is that the yarn portion is provided so as to be exposed.
According to the invention according to claim 2, the stitch pattern is formed by forming the seam portion, the first thread portion, and the second thread portion in accordance with the seam and the seam that are formed when the leather or the like is actually sewn together. It can be more authentic.

  According to the resin molded product according to the present invention, the stitch pattern can be made more authentic.

1 is a schematic perspective view showing an instrument panel according to a preferred embodiment of the present invention. It is a schematic plan view which shows the principal part of the instrument panel of an Example. (a) is the sectional view on the AA line of FIG. 2, (b) is the sectional view on the BB line of FIG. It is a schematic perspective view which fractures | ruptures and shows the principal part of the instrument panel of an Example. It is a schematic perspective view which fractures | ruptures the principal part of the 1st member of an Example and shows from the front side. It is a schematic perspective view which fractures | ruptures the principal part of the 1st member of an Example and shows from a back side. It is explanatory drawing which shows the manufacture process of the instrument panel by two-color molding, Comprising: (a) shows the formation process of the 1st member, (b) shows the formation process of the 2nd member to the AA line of FIG. FIG. 4C shows the second member forming step by breaking at a position corresponding to the line BB in FIG. 2. It is a schematic plan view which shows the example of a change of a stitch pattern. It is CC sectional view taken on the line of FIG. (a) is explanatory sectional drawing which shows the state which stitched two skin pieces with the thread | yarn used as an in-stitch, (b) is explanatory sectional drawing which shows the connection state of the skin piece by what is called a single stitch. It is explanatory sectional drawing which shows the connection state of the skin piece by what is called a double stitch.

  Next, the resin molded product according to the present invention will be described below with reference to the accompanying drawings by giving preferred examples. In the embodiment, an instrument panel 30 as shown in FIG. 1, which is one of vehicle interior members, will be described as an example of a resin molded product. Here, in the instrument panel (resin molded product) 30, the side facing the design surface 31 is referred to as the front side, and the side facing the side that is attached to another member or hidden by the other member is referred to as the back side. To do. For example, in the case of a vehicle interior member such as the instrument panel 30, the passenger compartment side facing the design surface 31 is the front side, and the vehicle body side to which the vehicle interior member is attached is the back side.

  As shown in FIG. 2 or FIG. 3, the instrument panel 30 includes a first member 32 in which a plurality of thread portions 34, 36 are integrally formed, and a second surface whose surface constitutes a design surface 31 of the instrument panel 30. And a member 44. The instrument panel 30 is formed so as to expose the protruding ends of the plurality of yarn portions 34 and 36 to the front side of the second member 44, and the protruding ends of the yarn portions 34 and 36 and the surface of the second member 44. Are formed in different colors. In the instrument panel 30, colors are set in accordance with the yarns 34 and 36 simulating the thread 12 for sewing the skin piece 10 made of genuine leather, artificial leather, or the like, while the first part simulating the skin piece 10. The color of the surface of the two members 44 is set according to the skin piece. The instrument panel 30 has a plurality of stitch portions 34 and 36 exposed from the second member 44 that constitutes most of the design surface 31 facing the passenger compartment side, so that stitches of a pseudo stitch pattern are formed on the design surface 31. (See FIG. 1).

  As shown in FIGS. 2 to 4, the instrument panel 30 is formed with a pseudo seam representing a connection portion between the skin pieces by a seam portion 46 formed on the surface of the second member 44. The instrument panel 30 is formed with a plurality of first stitch portions 34 formed on the first member 32, and an out stitch extending along the seam. Further, in the instrument panel 30, an in-stitch exposed at the joint is formed by a plurality of second thread portions 36 formed in the first member 32. Thus, the instrument panel of the embodiment is provided with a stitch pattern imitating a single stitch.

  Various materials can be used as the material forming the first member 32 and the second member 44. For example, the first member 32 and the second member 44 may be made of the same material, or different materials may be combined, such as an elastomer such as polypropylene (PP), polyethylene (PE), TPO (olefin elastomer), or a foamed material such as polyurethane. can do. In the embodiment, the first member 32 is made of polypropylene and the second member 44 is made of TPO. Further, the colors of the first member 32 and the second member 44 are preferably colored the material itself forming the first member 32 and the second member 44 as in the embodiment, but the first member 32 and the second member 44 are colored. You may color after shape | molding.

  The first member 32 is provided so as to correspond at least to the formation site of the stitch pattern. The first member 32 of the embodiment is formed in a band shape narrower than the second member 44, and extends to the minimum range corresponding to the stitch pattern formation portion on the back side of the second member 44. ing. The first member 32 includes a base portion 38 whose front side is covered with a second member 44, and a plurality of thread portions 34, 36 formed on the surface of the base portion 38 (see FIGS. 2 to 5). ). The base portion 38 is formed in a shape in which flat plates are connected in a single stepped shape (see FIG. 5). Specifically, the base portion 38 includes a first step portion 38a that protrudes to the front side, a second step portion 38b that retracts to the back side from the first step portion 38a, a first step portion 38a, and a first step portion 38a. And a continuous portion 38c that connects the two-step portions 38b. The first member 32 includes a first step portion of the base portion 38 so that a plurality of first stitch portions 34 that form an out stitch extending along the seam are along the joint portion 46 of the second member 44. 38a. Further, the first member 32 is connected to the second step portion 38 b of the base portion 38 so that the second stitch portion 36 forming the in-stitch exposed at the joint corresponds to the joint portion 46 of the second member 44. It is formed at the joint with the portion 38c.

  As shown in FIG. 5, the first yarn portion 34 and the second yarn portion 36 are formed so as to protrude from the surface of the base portion 38 toward the front side. The plurality of first thread portions 34 are arranged on the surface of the first step portion 38a at positions separated from the joint between the first step portion 38a and the connecting portion 38c, and are separated from each other along the joint. It is lined up in a row. Each of the first thread portions 34 is formed in a streak shape whose length extends along the alignment direction of the plurality of thread portions 34 (hereinafter simply referred to as the alignment direction) in a plan view shown in FIG. The plurality of second thread portions 36 are arranged in a row in a state of being separated from each other along the joint between the second step portion 38b and the connecting portion 38c. That is, the first member 32 has a plurality of first thread portions 34 and a plurality of second thread portions 36 arranged in a parallel relationship. Each second thread portion 36 is a small protrusion whose length dimension in the alignment direction is set smaller than that of the first thread portion 34, and one second thread portion 36 corresponding to one first thread portion 34. Is provided. In the embodiment, each second yarn portion 36 is arranged at a position corresponding to the center of the corresponding first yarn portion 34 in the direction perpendicular to the arrangement direction (hereinafter referred to as the width direction). Further, fine projections and recesses (not shown) simulating yarn twists are formed on the protruding end portions of the first yarn portion 34 and the second yarn portion 36.

  As shown in FIG. 5, the first member 32 has a slit 40 formed between adjacent first thread portions 34, 34 in the base portion 38. In the first member 32 of the embodiment, slits 40 are provided between the adjacent first thread portions 34, 34. The slit 40 is located between the adjacent first thread portions 34, 34 in the base member 38, extends in the width direction (a direction intersecting the arrangement direction of the plurality of first thread portions 34), and The first thread 34 is formed so as to open in the protruding direction. Each slit 40 is set so as to extend larger than the width dimension of the first thread part 34, and not only between the adjacent first thread parts 34, 34 but also on both sides in the width direction from the first thread part 34. It is formed to extend. Each slit 40 is formed in the shape of a groove formed so as to be recessed toward the back side over the entire width direction of the first step portion 38a, and the first step portion 38a and the continuous portion 38c are separated by the slit 40. It has been. Specifically, in the first member 32, a pair of wall portions 38d and 38d that are formed to extend from the first step portion 38a and the connecting portion 38c toward the back side and are arranged to face each other in the arrangement direction, A slit 40 is defined by a bottom portion 38e connecting the bottoms of these wall portions 38d and 38d and continuing to the second stepped portion 38b (see FIG. 5 or FIG. 6).

  As shown in FIG. 6, on the back side of the first member 32, a convex portion (engagement portion) that protrudes from the first step portion 38a to the back side by a pair of wall portions 38d, 38d and a bottom portion 38e that define the slit 40. 42 is formed. Further, on the back side of the first member 32, a concave portion (engagement portion) 43 that is recessed to the front side of the second step portion 38 b is formed between the adjacent convex portions 42. And the engaging part which consists of the convex part 42 and the recessed part 43 becomes a meshing part with the shaping | molding surface of this type | mold part 50 in the 1st member 32 set to the type | mold part 50 at the time of manufacture mentioned later, and engaging part 42,43 is This contributes to the positioning and fixing of the first member 32. In addition, the 1st member 32 is formed so that the site | part corresponding to the back side of the 1st thread part 34 may be dented (refer FIG. 6). The first member 32 is formed by integrally forming portions such as the thread portions 34 and 36 and the base portion 38 by molding, and has the same color as a whole.

  The second member 44 is formed in an appropriate shape according to the design shape of the instrument panel 30. In the second member 44, the joint portion 46 is formed in a step shape so as to form a step on the design surface 31 of the instrument panel 30 (see FIG. 3 or FIG. 4). Here, the joint portion 46 of the second member 44 is formed in accordance with the level difference of the base portion 38 in the first member 32. Further, on the surface of the second member 44, a recessed portion 48 that is recessed toward the first thread portion 34 is formed at a peripheral portion of the first thread portion 34 exposed on the front side of the second member 44. The instrument panel 30 expresses that the second member 44 is compressed by the seam formed by the first thread portion 34 by the recessed portion 48. Furthermore, a pattern such as embossing is formed on the surface of the second member 44 as necessary. In the instrument panel 30, the first thread portion 34 is exposed on the side of one design surface 31 (first design surface) that is raised from the other design surface 31 (second design surface) side across the seam formed by the joint portion. It is provided to do. The instrument panel 30 is provided so that the second thread portion 36 is exposed at a boundary portion between the second design surface 31 and the joint. In the instrument panel 30, the second member 44 is inserted into the slit 40 of the first member 32, and the first thread part is interposed between the adjacent first thread parts 34, 34 and through the part that enters the slit 40. The 2nd member 44 is connected on both sides of the out stitch which 34 makes.

  Next, a method for manufacturing the instrument panel 30 according to the embodiment will be described. In the embodiment, the instrument panel 30 having the first member 32 and the second member 44 is manufactured by two-color molding. For example, the molding apparatus used in the embodiment is disposed so as to face the common mold part 50 provided to be movable between the first position and the second position, and the common mold part 50 in the first position. A primary mold part 52 that moves forward and backward with respect to the common mold part 50 and a secondary mold part 54 that is arranged to face the common mold part 50 at the second position and moves forward and backward with respect to the common mold part 50. (See FIG. 7). By closing the common mold part 50 and the primary mold part 52, a first cavity 56 that matches the first member 32 is defined between the common mold part 50 and the primary mold part 52 (FIG. 7). (See (a)). At this time, the back side of the first member 32 is defined by the molding surface of the common mold part 50, while the front side of the first member 32 is defined by the primary mold part 52. The first resin raw material that is the element of the first member 32 is injected into the first cavity 56. Then, by curing the first resin raw material in the first cavity 56, the first member 32 having the shape described above is formed. Specifically, a plurality of thread portions 34 and 36 projecting to the design surface 31 side of the instrument panel 30 are formed on the front side, and slits 40 and engaging portions 42 and 43 are formed in the base portion 38. Thus, the first member 32 is obtained. Here, by mixing a predetermined color material with the first resin raw material, the obtained first member 32 including the thread portions 34 and 36 has a color matching the stitches of the stitch pattern. Further, fine streak-like irregularities (not shown) are provided on the molding surface corresponding to the thread portions 34 and 36 in the primary mold portion 52, and the yarn portions 34 and 36 are twisted simultaneously with the molding of the first member 32. Eyes are attached. In the embodiment, the first member 32 is molded by an injection molding method in which the first resin material fluidized by heating is injected into the first cavity 56 while applying pressure.

  By moving the primary mold part 52 away from the common mold part 50, the first member 32 remains in the common mold part 50 due to the engagement between the engaging parts 42 and 43 and the molding surface. The common mold part 50 is moved, arranged opposite to the secondary mold part 54, and the common mold part 50 and the secondary mold part 54 are closed, so that the common mold part 50 and the secondary mold part 54 are closed. A second cavity 58 is defined in accordance with the second member 44. At this time, the back side of the first member 32 remains held on the molding surface of the common mold part 50, the front side of the second member 44 is defined by the secondary mold part 54, and the thread parts 34, 36 protrude. The end portion is sealed with the molding surface of the secondary mold portion 56 (see FIG. 7B or 7C). Here, the first member 32 is formed with engaging portions 42 and 43 on the back side of the base portion 38 simultaneously with the molding of the first member 32, and the concave and convex portions of the engaging portions 42 and 43 are formed on the common mold portion 50. Is meshed with the unevenness of the molding surface. Therefore, even when the primary mold part 52 is opened, the common mold part 50 is moved, or the secondary mold part 54 is closed, the engaging parts 42 and 43 and the common mold part It is possible to prevent the first member 32 from being detached or displaced due to the engagement with the molding surface 50.

  A second resin raw material that serves as an element of the second member 44 is injected into the second cavity 58. At this time, the second resin material can be flowed between the second cavity 58 sandwiching the first thread portion 34 through the slit 40 and the first thread portions 34, 34 provided in the first member 32. (See FIG. 7C), the second resin raw material can be quickly filled into the second cavity 58 without gaps. Thereby, it is possible to prevent a molding defect such as a gap from occurring in the second member 44 to be obtained, and a high quality instrument panel 30 can be obtained. Then, by curing the second resin material in the second cavity 58, the second member 44 having the shape described above is formed. Specifically, the projecting ends of the thread portions 34 and 36 are sealed by the molding surface of the secondary mold portion 54, so that the exposed ends of the thread portions 34 and 36 are exposed to the front side of the second member 44. The front side of the first member 32 is covered with the second member 44. Here, by mixing a predetermined color material with the second resin material, the obtained second member 44 has a color that matches the design surface 31 of the instrument panel 30. The molding surface corresponding to the thread portions 34 and 36 in the secondary mold portion 54 is provided with fine streak-like irregularities, and the first member 32 is sealed when the protruding ends of the thread portions 34 and 36 are sealed. The projections and depressions of the secondary mold portion 54 are aligned with the projections and depressions of the protruding end portion applied at the time of molding, and the seal is tightly sealed. In the embodiment, the second member 44 is molded by an injection molding method in which the second resin material fluidized by heating is injected into the second cavity 58 while applying pressure.

  In the instrument panel 30 of the embodiment, the first member 32 in which the thread portions 34 and 36 forming stitches of the stitch pattern are formed is separate from the second member 44 forming the design surface 31 of the instrument panel 30. . Then, with the protruding ends of the thread portions 34, 36 exposed to the front side, the front side of the first member 32 is covered with the second member 44, and the protruding ends of the yarn portions 34, 36 exposed to the design surface 31 side. In combination with the surface shape of the second member 44 that forms the periphery of the thread portions 34 and 36, a pseudo stitch pattern is formed. For example, if the seam is integrally formed with the member forming the design surface 31 of the instrument panel 30, the color of the design surface 31 and the seam cannot be changed, and the design surface 31 is softened while the seam is hardened. And the design surface 31 cannot change the texture. According to the instrument panel 30 of the embodiment, since the first member 32 and the second member 44 are separate members, the colors of the respective members 32 and 44 (the thread portions 34 and 36 and the surface of the second member 44). And the shape related to the stitch pattern, such as the shape of the periphery of the yarn portions 34, 36 such as the yarn portions 34, 36 or the seam portion 46, and the selection of the material of the material are high. That is, if the first member 32 and the second member 44 are formed of resin materials of different colors as in the embodiment, the thread portions 34 and 36 and the surface of the second member 44 can be simplified to different colors. Can do. Similarly, if the first member 32 and the second member 44 are formed of resin materials having different hardness, for example, the yarn portions 34 and 36 and the second member 44 can be easily set to have different textures. Therefore, according to the instrument panel 30 of the embodiment, the stitch pattern can be made more authentic. Moreover, the instrument panel 30 has a step-like seam portion 46 that forms a step-shaped seam on the design surface 31 in accordance with the seam and seam that are formed when leather or the like is actually sewn together, and a plurality of out-stitches. Since the first stitch portion 34 and the plurality of second stitch portions 36 forming in-stitch are formed, the stitch pattern can be made more authentic.

  In the instrument panel 30, the space between the plurality of first thread portions 34 exposed on the front side of the second member 44 is narrow, and the second member 44 is lined up. Since the 2nd member 44 is comprised so that it may enter into the slit 40 of the 1st member 32 provided between the adjacent thread parts 34 and 34, the thickness of the 2nd member 44 can be ensured and the 2nd member 44 can be ensured. The strength of can be kept.

  The instrument panel 30 forms a first member 32 having thread portions 34 and 36 forming stitches of stitch patterns, and forms a second member so that the thread portions 34 and 36 are exposed to the design surface 31 side. Manufactured by. That is, since the first member 32 and the second member 44 are formed in separate forming steps, the surface of the second member 44 that forms a pseudo stitch pattern together with the thread portions 34 and 36 and the thread portions 34 and 36. The degree of freedom in setting the colors and defining the shape of each is high. For example, according to the manufacturing method of the embodiment, when forming the thread portions 34 and 36 (first member 32), the second member 44 is not subject to restrictions such as color selection, molding conditions, and resin raw materials, and similarly When the two members 44 are molded, the first member 32 is not restricted by color selection, molding conditions, resin raw materials, and the like. Therefore, an instrument panel 30 having a stitch pattern close to the real thing can be obtained by a simple manufacturing method. In addition, by adopting two-color molding, it is possible to eliminate the bonding and assembling process of the first member 32 and the second member 44, so that the manufacturing cost can be reduced. Moreover, the first member 32 is engaged by engaging the engaging portions 42 and 43 formed in advance on the first member 32 by forming the first member 32 with the common mold portion 50 used for forming the second member 44. Since it is held, displacement of the first member 32 can be prevented. That is, in the obtained instrument panel 30, the thread portions 34 and 36 can be accurately exposed to the front side in relation to the joint portion 46.

(Example of change)
The present invention is not limited to the configuration of the embodiment described above, and can be modified as follows, for example.
(1) In the embodiment, a stitch pattern simulating a single stitch is illustrated, but a stitch pattern simulating a double stitch shown in FIGS. 8 and 9 and other stitch patterns may be used. Further, the stitch pattern may be only an out-stitch, a joint may be provided, an in-stitch may not be provided, or a joint may not be provided.
(2) In the modified example shown in FIGS. 8 and 9, two rows of the first members formed on the front side of the first member 32 on both sides of the seam portion 46 formed in a groove shape on the surface of the second member 44. The thread portions 34 and 34 are exposed on the front side of the second member 44. The seam portion 46 is formed in a tapered shape in the depth direction. In addition, a row of second thread portions 36 protruding from the front side of the first member 32 is exposed at the joint portion 46. The seam portion 46 forms a seam, the two rows of first thread portions 34 and 34 sandwiching the seam portion 46 form an out-stitch, and the second thread portion 36 exposed at the seam portion 46 forms an in-stitch that appears at the seam. A stitch pattern simulating a double stitch is formed on the design surface.

(3) In the embodiment, the instrument panel is exemplified as the resin molded product. However, the present invention can be applied to a vehicle interior member such as a door trim, a pillar, a glove box lid, furniture, or the like on which a stitch pattern is formed.
(4) The resin molded product may not be a configuration in which the first member is located only around the portion corresponding to the stitch pattern, but may extend over the entire back side of the second member. For example, the first member may be a base material that ensures the rigidity of the resin molded product, and the second member that covers the first member may be a flexible skin material.
(5) Rather than forming both the first and second thread portions on one first member, the first member having the first thread portion and the first member having the second thread portion formed. In addition, it may be divided according to the seam. Further, the first member may be composed of a single stitch in the whole stitching direction or may be divided.
(6) The slits of the first member are not limited to the configuration provided between the yarn portions, and may be formed appropriately or between the yarn portions of a predetermined pitch. It is also possible to omit the slit. The slit is not limited to the bottomed groove shape as in the embodiment, and may be a hole shape penetrating the base portion in the protruding direction of the thread portion.
(7) The engaging portion of the first member may be provided as necessary.
(8) The first member is not limited to being formed with the same color as a whole. For example, the color of the thread portion and the base portion may be changed.
(9) Although it is desirable from the viewpoint of manufacturability to color the surface of the first member and the surface of the second member, the first member is colored in a later step after the molding. Also good.
(10) The method for producing a resin molded product is not limited to two-color molding, and is a so-called insert molding in which a separately molded first member is set in a mold for molding a second member and the second member is molded. Alternatively, the first member and the second member may be formed in separate molds and then assembled together.

31 Design surface, 32 1st member, 34 1st thread part (thread part), 36 2nd thread part (thread part),
44 Second member, 46 seam

Claims (2)

It is a resin molded product with a pseudo stitch pattern formed on the design surface,
A first member formed by arranging a plurality of thread portions protruding on the design surface side on the front side;
A second member formed so as to cover the front side of the first member in a state where the protruding end portion of the thread portion is exposed;
The surface of the second member forming the design surface and the protruding end portion of the thread portion exposed from the second member are different from each other in color, and the stitch pattern seam is constituted by a plurality of thread portions,
In the second member, a seam portion forming a pseudo seam is formed on the surface,
The first member is formed with a first thread portion that forms an out-stitch extending along the seam in the stitch pattern so as to follow the seam portion, and the inset exposed in the seam in the stitch pattern. A second stitch portion forming a stitch is formed at a portion of the first member corresponding to the joint portion ;
The out-stitch and the in-stitch are both in the state in which the second member is exposed with the protruding end portions of the first and second thread portions provided on the first member exposed on the upper surface of the second member. A resin molded product characterized by being formed so as to cover one member . The second member is formed in a step shape so that the joint portion forms a step on the design surface,
The first stitch portion is provided so as to be exposed on one design surface side that is raised from the other design surface side with the joint portion interposed therebetween, and the second portion is provided at a boundary portion between the other design surface side and the joint portion. The resin molded product according to claim 1, which is provided so that the thread portion is exposed.

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