JPH0911344A - Manufacture of partial skin molded article - Google Patents

Abstract

PURPOSE: To integrally mold a partial skin molded article by laminating a skin material only on a specified surface area of the molded article a series of processes in a molding cycle. CONSTITUTION: This method for making a partial skin molded article in which only a specified surface area is coated with a skin material includes a skin material heating process in which a specified part corresponding at least to the prescribed surface area of the skin material 5 with its peripheral part clamped is heated at a specified temperature, a skin material press process in which at least a specified part of the heated skin material is pressed between the mold surfaces of a pair of molds 10, 20, and a trimming process in which the skin material, kept in this pressed state, is cut along the periphery of a specified part by a cutter 24, and the excessive skin material is removed from between the molds. Moreover, a mold clamping process in which a specified part of the skin material is held on the mold surface side of the mold corresponding to the prescribed surface area and a molding cavity 8 is formed by closing the molds and a resin molding process in which the cavity is filled with a resin material are provided additionally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a so-called partial skin molded product in which only a predetermined surface area is covered with a skin material.

[0002]

2. Description of the Related Art Conventionally, in a resin molded article such as an automobile interior trim, the interior side surface of a synthetic resin trim base material is covered with a skin material such as a so-called fabric to form an interior material. It is generally well-known that it is designed to give a high-class feeling. When manufacturing such a resin molded product whose surface is covered with a skin material, it is considered that the skin material is integrally laminated in a molding die at the time of molding the base material. For example, JP-A-63-116815. The publication discloses a method of injection-molding a so-called full-skin composite material product in which a fibrous material is bonded to the entire surface on one side of a support member (for example, a seat unit) made of synthetic resin. Incidentally, in Japanese Utility Model Laid-Open No. 6-27249, when press-molding such a full-face skin-molded article, a mesh body of high-melting-point fibers is inserted between the base material and the skin material in a portion where the expansion rate of the base material is high. It is disclosed that it is reinforced by.

Also known is a so-called partial skin type resin-molded product whose interior side surface is covered with a skin material, in which only a specific region of the interior side surface is covered with the skin material. There is. As a method of molding such a partial skin-molded article, another member corresponding to the specific region is manufactured by coating with a skin material and attached to a separately molded body substrate (for example, Japanese Utility Model Laid-Open No. 4-76516 or JP-A-6-9
9735), or a separate member having the above-mentioned entire surface skin is loaded into the mold at the time of molding the main body base material to perform integral molding (see, for example, JP-A-5-318613).
Alternatively, a skin material is adhered and fixed to a specific region of the molded main body substrate by using a mold for skin pressure bonding (for example, JP-A-2-3).
No. 05627) is known.

In addition, for example, in Japanese Unexamined Patent Publication No. 64-26414, a skin material having a shape corresponding to the above-mentioned specific area is separately prepared and attached to a portion corresponding to the specific area in a molding die. A method is disclosed in which a molten resin is supplied to the back surface side of the attached skin material and the skin material and the main body base material are integrally molded by compression molding. Further, Japanese Unexamined Patent Publication No.
In Japanese Patent No. 85715, a decorative sheet for decorating only a specific area is attached to the back surface side of a surface layer material set on the entire surface of one mold surface, and a molten resin is supplied to the other mold surface to form a main body base material. A method of integrally compression-molding the decorative sheet and the entire surface layer material is disclosed.

[0005]

However, each of the above-mentioned conventional methods has the following drawbacks.
That is, when a separate member is manufactured and attached to the main body base material, an additional man-hour is required to manufacture the separate member covered with the entire surface skin, and a molding die for this is additionally required. It also takes time to attach (or integrally mold) to the main body substrate. In other words, the number of parts increases, the equipment cost increases, and it is difficult to expect improvement in productivity. Further, even when the skin material is bonded and fixed to the molded main body substrate, a separate mold for skin pressure bonding is required, and the bonding and fixing work performed separately from the molding is troublesome. Furthermore, even when the skin material is integrally laminated at the time of molding the main body material, prepare a skin material having a shape corresponding to a specific area to be covered with the skin material, and accurately position and set it in the molding die. It takes a lot of work to do.

The present invention has been made in view of the above problems, and in a series of steps within one molding cycle, a portion in which a skin material is laminated only on a predetermined surface region of a molded product and integrally molded. It is an object of the present invention to provide a method for manufacturing a skin-molded article.

[0007]

Therefore, the invention according to claim 1 of the present application (hereinafter referred to as the first invention) is a method for manufacturing a partial skin-formed product in which only a predetermined surface region is covered with a skin material. In the above, a skin material heating step of heating at least a specific portion of the peripheral surface clamped skin material corresponding to the predetermined surface area to a predetermined temperature, and at least the specific portion of the heated skin material, a pair of molding dies. The step of pressing the skin material between the mold surfaces and the trimming step of cutting the skin material along the peripheral edge of the specific portion with a cutting tool in this pressed state and removing the excess skin material from between the molding dies. And a mold clamping step in which the specific portion of the skin material is held on the mold surface side of the mold corresponding to the predetermined surface area, and both molds are closed to form a mold cavity, and a material resin in the mold cavity. Resin filling It is obtained by comprising: the shape step.

Further, the invention according to claim 2 of the present application (hereinafter referred to as the invention)
In the first invention, in the first invention, the holding of the specific portion of the skin material on the mold surface is performed on the mold surface provided in the mold corresponding to the predetermined surface area. It is characterized in that it is performed by applying a negative pressure to the opening negative pressure passage.

Further, the invention according to claim 3 of the present application (hereinafter referred to as “the invention”)
In the first or second invention, the mold surface of the molding die corresponding to the predetermined surface region is,
A protrusion that protrudes toward the molding cavity is formed at a portion corresponding to the peripheral edge of the specific portion of the skin material, and the skin material is cut along the peripheral edge of the specific portion on the protrusion. It is a feature.

[0010] Further, the invention according to claim 4 of the present application.
(Hereinafter, referred to as a fourth invention) is characterized in that, in any one of the above-mentioned first to third inventions, the resin molding step is performed by an injection compression molding method. here,
The injection compression molding method is a state in which the molding cavity is slightly expanded from the final molding shape, an appropriate amount of material resin is injected and injected into the cavity at a relatively low pressure, and then the mold is slid to form the final molding cavity. By setting the shape, the material resin in the molding cavity is compressed, and the resin is spread into the molding cavity of the final shape to perform molding.

[0011]

According to the first aspect of the present invention, the specific portion of the skin material is heated to a predetermined temperature and pressed between the mold surfaces of the pair of molding dies, and the skin material is kept in this pressed state. After removing the extra skin material from between the molds by cutting with a cutting tool along the periphery of the specific portion, the specific portion of the skin material is held on the mold surface side of the molding die corresponding to the predetermined surface area. Since the molding cavities are formed by closing both molding dies and the material resin is filled in the molding cavities, the skin material is formed only on a predetermined surface area of the molded product in a series of steps in one molding cycle. Can be laminated and integrally molded. Therefore, it is not necessary to prepare and attach a separate member, and it is not necessary to prepare a skin material having a shape corresponding to a predetermined surface area and position and set the skin material in the mold to perform a troublesome work. That is, the partial skin-molded article can be formed by a series of a small number of steps without increasing the number of parts and the equipment cost, and without the need for performing another operation that requires time and labor.

Further, according to the second invention of the present application, basically, the same effect as that of the first invention can be obtained. Moreover, since the holding of the specific portion of the skin material on the mold surface in the mold clamping step is performed by applying a negative pressure to the negative pressure passage, the skin material can be easily and surely, and It can be held on the mold surface of the mold corresponding to the predetermined surface area without being damaged.

Further, according to the third invention of the present application, basically, the same effect as that of the first or second invention can be obtained. Moreover, since the protrusion is formed on the mold surface of the molding die corresponding to the predetermined surface area, a so-called wood grain portion with respect to the peripheral edge portion of the skin material is provided at the portion corresponding to the peripheral edge of the predetermined surface area. Can be formed.
Further, since the skin material is pressed by the protruding portion and cut on the protruding portion, by filling the molding resin with the material resin, the peripheral portion of the specific portion of the skin material is formed on the surface of the molded product. It can be held at the back of the wood grain part formed on the side. That is, it is possible to perform the wood graining work at the same time as the resin molding without the need to provide a special process. As a result, the skin material having a predetermined surface area has a good grain in the peripheral portion, and the appearance can be improved.

Further, according to the fourth invention of the present application,
Basically, the same effect as that of any one of the first to third inventions can be obtained. Moreover, since the injection compression molding method is applied to the resin molding process, pressure can be applied uniformly over the entire molding cavity compared to the case of normal injection molding, and it is possible to shrink the molded product. It is possible to more effectively prevent the occurrence of warp and warp.

[0015]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in the case where the embodiment of the present invention is applied to a method of manufacturing a partial skin type automobile door trim. 1 and 2 are a front explanatory view and a vertical cross-sectional explanatory view of a vehicle door trim according to this embodiment. As shown in these drawings, the door trim 1 is formed of, for example, polypropylene (PP) resin. Further, only the armrest portion 3 on the interior surface of the trim base material 2 is covered with the skin material 5 (for example, so-called fabric). In the door trim 1 as the partial skin-molded product, the skin material 5 is integrally laminated and molded when the trim base material 2 is molded.

FIG. 3 shows a mold clamping state of a pair of molds 10 and 20 for injection molding the door trim 1. Of the two molds 10 and 20, a mold 20 having a mold surface 20f corresponding to the rear surface side (anti-interior surface side) of the door trim 1.
On the back side of (the right mold in the figure), both molds 10,
In the molding cavity 8 formed by closing 20 together,
An injection cylinder 21 for injecting a material resin (polypropylene resin) in a molten state by injection is connected. A resin passage 26 for guiding the molten material resin from the injection cylinder 21 into the molding cavity 8 is provided in the mold 20, and the injection nozzle 21 a of the injection cylinder 21 communicates with the resin passage 26. There is. In addition, in the mold 20,
A cylindrical cutting tool 24 having a vertical cross-sectional contour corresponding to the peripheral shape of the skin material covering region of the door trim 1 (that is, the armrest portion 3) is provided so as to be able to project and retract from the mold surface 20f toward the molding cavity 8 side. The cutting tool 24 is connected to a drive cylinder 25 for moving the cutting tool 24 back and forth. A cutting blade 24 a for cutting the fabric 5 (skin material) is formed at the tip of the cutting tool 24.

On the other hand, the portion corresponding to a predetermined area including the skin material covering area (armrest portion 3) of the die 10 (the die on the left side in the drawing) having the die surface 10f corresponding to the interior side of the door trim 1 is the same. A slide mold 12 that is slidable in the opening / closing direction of the molds 10 and 20 is formed with respect to the peripheral portion (main mold 11). This slide mold 12 is moved forward and backward by a drive mechanism (not shown), and will be described later. As described above, the sliding operation is performed on the main mold 11 at a predetermined timing. When the slide die 12 is advanced to the die 20 side and the fabric 5 (skin material) is pressed between the die surface 12f of the slide die 12 and the die surface 20f of the die 20, the cutting tool 24 is pressed. By being protruded into the molding cavity 8, the skin material 5 can be cut along the peripheral edge of the skin material covering region (armrest portion 3) of the door trim 1 in this pressed state as described later.

Further, the slide mold 12 is provided with a negative pressure passage 13 communicating with a vacuum pump (not shown) through a negative pressure tube 14, and the negative pressure passage 13 is branched into a plurality of parts. The terminal side is open to the mold surface 12f of the slide mold 12. The drive cylinder 25 of the cutting tool 24, the drive mechanism (not shown) of the slide die 12 and the vacuum pump (not shown) are electrically connected to a control panel (not shown) of the molding apparatus, and for example, a microcomputer is a main part. The operation is controlled based on a control signal from a device control unit (not shown) configured as.

Door trim 1 which is carried out by using the above apparatus
Manufacturing process will be described mainly with reference to a series of process explanatory diagrams of FIGS. 4 to 7 and partially enlarged sectional views of FIGS. 8 and 9. In addition, in order to facilitate understanding of the drawings, in these process explanatory diagrams, the structures of the molds 10 and 20 or the accessory members thereof are illustrated by omitting parts that are not particularly necessary for the description of the process. However, the molds used throughout the steps shown in these figures are the same.

First, as the first step (skin material heating step), as shown in FIG. 4, when the molds 10 and 20 are separated from each other, for example, as a skin material whose periphery is clamped by a frame-shaped holder 7. After pulling out the fabric 5 of the front of the mold 10, from the back side of the heater 6
Heating. At this time, in the clamped state, the fabric 5 (skin material) is stretched and stretched around the periphery thereof by the holder 7 so that slack, waviness, or wrinkles do not occur. Then, the heater 6 is set on the back side of the skin material 5 in the clamped state,
At least a specific portion of the skin material 5 corresponding to the skin material covering region (armrest portion 3) is heated to a predetermined temperature. In addition, this skin material heating step is not always performed by the molds 10 and 2.
It does not need to be performed between 0 and the skin material 5 heated in another station may be set between the molds 10 and 20.

After the skin material 5 heated as described above is set between the slide die 12 and the die 20, the slide die 12 is advanced to the die 20 side as shown in FIG.
Between the mold surface 12f of the slide mold 12 and the mold surface 20f of the mold 20, at least a specific portion of the skin material 5 corresponding to the skin material covering region (armrest portion 3) is pressed (skin material pressing step). The skin material 5, which has been heated and softened to some extent by this pressing, can be relatively easily and easily
The curved surface shape of 20f is adapted and deformed, and in this deformed state, it is sandwiched between both mold surfaces 12f and 20f.

Next, in such a pressed state,
By operating the drive cylinder 25 to cause the cutting tool 24 to protrude from the mold surface 20f, as shown in FIG. 8, the skin material 5 is kept in the pressed state and the peripheral edge of the skin material covering region (armrest portion 3) is maintained. Can be cut along. In the present embodiment, as shown in detail in FIG. 8, the mold surface 12f of the slide mold 12 (that is, the mold on the side opposite to where the cutting tool 24 is provided) corresponds to the peripheral edge of the skin material covering region 3. A projecting portion 16 projecting toward the molding cavity 8 is formed in the portion, and the skin material 5 is cut while being pressed on the projecting portion 16. That is, the skin material 5 that covers the armrest portion 3 of the door trim 1 is located on the protruding portion 16. By providing such a protruding portion 16, a so-called wood grain portion 1a (see FIG. 2) for the peripheral edge portion of the skin material 5 is formed in a portion corresponding to the peripheral edge of the surface material covering region (armrest portion 3) on the front surface side of the door trim 1. can do. After cutting the skin material 5 in this manner, the cutting blade 24a is retracted into the mold 20 and the holder 7 is pulled out to the outside of the mold as shown in FIG. The trimming process is completed by removing the trimming process from between 10 and 20.

When this extra skin material is removed from between the molds 10 and 20, it is more preferable to drive a vacuum pump (not shown) to apply a negative pressure to the negative pressure passage 13 in the slide mold 12. By using this negative pressure, the skin material 5 obtained by cutting is adsorbed and held on the die surface 12f of the slide die 12. By using negative pressure in this way,
Easily, reliably, and without damaging the skin material,
It can be held on the mold surface of the mold corresponding to the predetermined surface region. Instead of holding the skin material 5 by using negative pressure as described above, fine claws or needles are provided on the mold surface 12f to hold the skin material 5 on the mold surface 12f. You can also In this case, the mechanism for holding the skin material 5 can be greatly simplified.

Then, in this holding state, the slide die 12 is retracted so that the holder 7 is located outside the die (upper side in FIG. 6).
It is designed to be pulled out to. Instead of this,
The holder may be a separate type, and the holder can be pulled up and down in FIG. 5 while keeping the slide die 12 in the forward movement state. In this case, it is not necessary to retract the slide die 12 to pull out the holder, and it is not necessary to apply a negative pressure to the negative pressure passage 13 at the time of this retracting operation.

Next, the slide mold 12 and the main mold 11 are both advanced to the mold 20 side and clamped, and the mold 10 and the mold 20 are
A molding cavity 8 is formed between and (mold clamping step).
At this time, the skin material 5 cut along the peripheral edge of the skin material covering region (armrest portion 3) is adsorbed and held on the die surface 12f of the slide die 12. Further, in this state, the die surface 12f of the slide die 12 constitutes a part of the die surface 10f of the entire die 10. Then, as shown in FIG. 7, the injection cylinder 21 is driven to inject and fill the material resin into the molding cavity 8 (resin molding step). Then, after the material resin injected and filled is cooled and solidified to some extent, the molds 10 and 20 are opened, the molded product (door trim 1) is taken out from between the molds 10 and 20, and one molding cycle is completed.

At this time, as can be seen from FIG. 9, the portion of the door trim 1 corresponding to the protruding portion 16 of the die 10 (that is, the slide die 12) forms the wood grain portion 1a of the trim 1 and the peripheral edge of the skin material 5. Since the portion is located on the protruding portion 16 as described above, it is held behind the wood grain portion 1a. In other words, it is possible to perform the graining work at the same time as the molding without the need to provide a special process. As a result, the grain of the peripheral edge of the skin material 5 is improved, and the appearance can be improved.

As described above, according to this embodiment, the skin material 5 is laminated only on the predetermined surface area (armrest portion 3) of the molded product (door trim 1) in a series of steps in one molding cycle. Can be integrally molded. Therefore, it is not necessary to prepare and attach a separate member, and it is not necessary to prepare a skin material having a shape corresponding to the predetermined surface region 3 in advance and perform the cumbersome work of positioning and setting it in the mold. That is, the partial skin-molded product 1 can be molded in a series of a small number of steps without increasing the number of parts or equipment cost, and without the need for a separate work requiring labor and man-hours.

In the above embodiment, the portion corresponding to the predetermined region including the skin material covering region (that is, the armrest portion 3) of the mold 10 having the mold surface 10f corresponding to the interior side of the door trim 1 is the peripheral portion thereof. A slide mold 12 that can slide in the opening / closing direction of the molds 10 and 20 with respect to the (main mold 11)
In the skin material pressing step (see FIG. 5), the slide die 12 is moved forward to press the skin material 5, but instead of this, a dedicated press die is used. The steps of pressing and cutting the skin material can be performed. Next, another embodiment of the present invention will be described. In the following description, the same parts as those in the above-described embodiment are designated by the same reference numerals, and further description will be omitted.

In this embodiment, as shown in FIG. 10, the mold 40 having the mold surface 40f corresponding to the interior side of the door trim 1 is an integral mold, and the skin material covering region (that is, the armrest portion 3) is formed. A negative pressure passage 41 similar to that in the above-described embodiment is formed in a portion corresponding to the predetermined region including the negative pressure passage 41. On the other hand, the heater 6 is attached to the side of the supporting base material 43 that is relatively close to the tip, and the heater 6 and the supporting base material 43 are attached.
A pressing die 45 supported by a drive cylinder 46 attached to the supporting base material 43 is arranged between the pressing die 45 and the base portion 44. The pressing die 45 has a die surface 45f corresponding to the trim base material 2 of the portion including the skin material covering region (armrest portion 3) of the door trim 1, and the drive surface attached to the support base material 43 inside thereof. A cutting tool 47 that is actuated by a cylinder 48 is provided.

When the skin material heating step is completed, the supporting base material 43 is further protruded, the die surface 40f of the die 40 and the die surface 45f of the pressing die 45 are positioned in correspondence with each other, and the drive cylinder 46 presses them. The die 45 is driven to the die 40 side to press the skin material 5 between the die surfaces 40f and 45f of the two dies 40 and 45. In this pressed state, the drive cylinder 48 is operated to advance the cutting tool 47. Then, the skin material 5 can be cut. By adopting such a configuration, the mold 40 corresponding to the interior side of the door trim 1 does not need to be provided with the slide mold 12, and the structure thereof can be simplified, and the heating and pressing of the skin material 5 Each step of cutting can be performed as a smoother series of steps.

Further, in each of the above-mentioned embodiments, the material resin is injected into the molding cavity 8 by the usual injection molding method, but this injection is carried out by the so-called injection compression molding method. You can also In this injection compression molding method, with the molding cavity slightly expanded from the final molding shape, an appropriate amount of material resin is injected and injected into the cavity at a relatively low pressure, and then the mold is slid to form the final molding cavity. By setting the shape, the material resin in the molding cavity is compressed, and the resin is spread into the molding cavity of the final shape to perform molding. Hereinafter, still another embodiment of the present invention will be described. As shown in FIG. 11, in this embodiment, a mold 50 (fixed mold) having a mold surface 50f corresponding to the interior side of the door trim 1 is connected to a resin passage 51 communicating with an injection cylinder 53 attached to the back side thereof. Is provided, and a negative pressure passage 52 that opens to the mold surface of a portion corresponding to the skin material covering region (armrest portion 3) of the door trim 1 is formed.

On the other hand, a mold 60 (movable mold) having a mold surface 60f corresponding to the back side of the door trim 1 is an outer mold 61,
It is composed of a middle mold 62 that can slide in the mold opening and closing direction with respect to the outer mold 61, and a core mold 63 that can slide in the mold opening and closing direction with respect to the middle mold 62. Although not specifically shown, the core mold 63 is provided with the same cutting tool as in the above-described embodiment. After pressing the skin material 5 heated to a predetermined temperature using the core mold 63 and the fixed mold 50 to complete the cutting process along the peripheral edge of the skin material covering region (armrest portion 3), first, Outer mold 6
1 is advanced to the fixed mold 50 side to perform mold clamping. afterwards,
The middle mold 62 and the core mold 63 are advanced by a predetermined amount to form the molding cavity 8 ′ (see FIG. 12). At this point, the advance amount of the middle mold 62 and the core mold 63 is set so that the molding cavity 8 ′ is formed in a state in which it is slightly expanded from its final shape, as shown by the broken line in FIG. Has been done.

In this state, a predetermined amount of material resin is injected and injected from the injection cylinder 53 into the molding cavity 8'through the resin passage 51. Then, after that, the middle mold 62 and the core mold 63 are further advanced by a certain amount β to form the molding cavity 8 having the final shape (see the solid line curve in FIG. 12).
At this time, due to the advance of the middle mold 62 and the core mold 63, the material resin filled in the molding cavity 8'is uniformly spread while being compressed into the molding cavity of the final shape. By applying such an injection compression molding method, pressure can be applied uniformly over the entire molding cavity 8 as compared with the case of normal injection molding,
If the molded product (door trim 1) has shrinkage or warpage,
It can be prevented more effectively.

It should be noted that the present invention is not limited to the above-described embodiment, but may be modified without departing from the scope of the invention.
It goes without saying that various improvements or design changes are possible.

[Brief description of the drawings]

FIG. 1 is a front explanatory view of a partial skin door trim according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional explanatory view taken along the line YY of FIG.

FIG. 3 is a vertical cross-sectional explanatory view of a mold for molding the door trim.

FIG. 4 is a process explanatory diagram illustrating a skin material heating process.

FIG. 5 is a process explanatory diagram illustrating a skin material pressing process.

FIG. 6 is a process explanatory view showing a trimming process.

FIG. 7 is a process explanatory view showing a resin molding process after mold clamping.

FIG. 8 is a cross-sectional explanatory view showing an enlarged view of the slide type protrusion and the tip of the cutting tool.

FIG. 9 is an explanatory cross-sectional view showing an enlarged wood grain portion of the skin material.

FIG. 10 is a process explanatory diagram illustrating a skin material pressing process according to another embodiment of the present invention.

FIG. 11 is a process explanatory view showing a resin molding process according to still another embodiment of the present invention.

FIG. 12 is an explanatory longitudinal sectional view showing an enlarged main part of a mold according to still another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Door trim 3 ... Armrest part 6 ... Heater 5 ... Fabric (skin material) 8 ... Mold cavity 10, 20, 40, 50, 60 ... Mold 12f, 20f, 40f, 45f, 50f, 60f ... Mold surface 13,41 , 52 ... Negative pressure passage 16 ... Protrusion 24, 47 ... Cutting tool 24a ... Cutting blade

Claims (4)

[Claims] 1. A method of manufacturing a partial skin-molded article in which only a predetermined surface region is covered with a skin material, wherein a specific portion corresponding to at least the predetermined surface region of the skin material whose periphery is clamped is heated to a predetermined temperature. A step of heating the skin material, and a step of pressing the skin material at least the specific portion of the heated skin material between the mold surfaces of the pair of molding dies, and in this pressing state, the skin material is pressed to the specific portion. A trimming step of cutting with a cutting tool along the periphery of the outer skin material and removing the extra skin material from between the molding dies, and holding the specific portion of the skin material on the mold surface side of the molding die corresponding to the predetermined surface area, A method for manufacturing a partial skin-molded product, comprising: a mold clamping step of closing both molding dies to form a molding cavity; and a resin molding step of filling the molding cavity with a material resin. 2. The holding of a specific portion of the skin material on the mold surface in the mold clamping step applies a negative pressure to a negative pressure passage opened in the mold surface provided in the mold corresponding to the predetermined surface area. The method for producing a partially skin-molded article according to claim 1, wherein the method is performed by 3. The molding surface of the molding die corresponding to the predetermined surface area is provided with a protrusion portion protruding toward the molding cavity at a portion corresponding to the peripheral edge of the specific portion of the skin material,
The method for manufacturing a partial skin-molded article according to claim 1 or 2, wherein the skin material is cut along the peripheral edge of the specific portion on the protruding portion. 4. The method for producing a partial skin-molded article according to claim 1, wherein the resin molding step is performed by an injection compression molding method.