JP2010076229A - Apparatus and method of manufacturing decorative product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing apparatus which can obtain a molded article of a high quality, which can control a surplus amount of skin materials to be pasted on a substrate and prevents occurrences of wrinkles or local lifts in an area of the side part edge side positioned at a decorative side, and to provide a method of manufacturing the same. <P>SOLUTION: The substrate 2 is mounted and fixed on the top surface of a receiving tool 16, and the skin material 8 gripped by a clamper 15 at the edge is adhered tightly to the surface of the substrate 2. At that time, the clamper 15 is moved relatively up to a sufficient position for a close contact of the edge part of the skin material 8 with the whole side surface of the receiving tool. While the skin material 8 is deformed by a differential pressure due to the actuation of a means of generating the differential pressure, the skin material is spooled up from the surface of the substrate over the peripheral side surface up to the close contact with the end side rear face. The differential pressure power by the actuation of the means of generating the differential pressure at the time of spooling-up motion slidingly moves a sliding member 18 through the skin material 8 against the bias of a biasing member 19 to the bottom surface side inside a concave hole 20 formed on the peripheral surface of the receiving tool 16 to allow the skin material 8 to adhere tightly to the rear surface side end 6 of the substrate 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a device for manufacturing a decorative product for decorating the surface of a molded product made of a synthetic resin with a skin material, and a method for manufacturing the same.

  2. Description of the Related Art Conventionally, for example, as a car interior part, a skin decorative molded product in which a decorative surface of a base material formed of a synthetic resin material is covered with a skin made of a skin decorative sheet material has been used. Usually, a resin sheet having a decorative surface such as wood grain or leather, a resin sheet in which a foamed resin material is integrated, a cloth, a non-woven fabric, or the like is used as a skin made of a decorative sheet material. By covering the decorative surface of the molded product with the above-described skin, it is possible to obtain a skin-decorated molded product having good appearance design as a final product.

  In general, as a manufacturing method for producing this type of skin-decorated molded product, the planarly cut skin is heat-softened, the periphery of the heat-softened skin is gripped by a clamper, and the skin is applied to the substrate surface. The contact is made while gradually applying tension from a portion closer to the center, and the substrate is covered toward the side surface side of the substrate surface. And by covering with applying vacuum suction from the back side of the skin, the skin is uniformly coated on the entire surface of the substrate. By producing a skin-decorated molded article by such a production method, it is possible to prevent the occurrence of a bulging portion in which the thickness of the skin has changed on a part of the substrate surface. It is possible to reliably coat the skin having a uniform thickness over the entire surface.

  And it is possible to prevent the occurrence of local thinning or breakage of the epidermis on the central molding site on the surface of the base material or on the gently peripheral winding portion having a substantially straight shape. Here, the skin wound around the back surface side of the base material is drawn into the peripheral surface of the back surface side surface of the base material, thereby ensuring the surface appearance of the entire molded product. When there are a plurality of corner portions on the base material at the time of entrainment, particularly, the corner portions are greatly expanded and spread around the corner portions.

  For this reason, the skin that is folded back from the corner to the back side of the base material is folded back to the back side of the base material while narrowing the surplus part of the skin that has expanded and expanded greatly around the corner portion in the form of a ridge. Will go. That is, a raised portion bulging to the outside due to the generation of wrinkles is formed around the corner portion of the skin decorative molded product. This is not limited to the corner portion, and the skin material tends to cause a locally raised portion on the peripheral side surface of the base material even in other portions.

  When such wrinkles or raised parts occur, for example, when a skin decorative molded product as an interior part of an automobile is attached to a dashboard, the corner of the skin decorative molded product is The skin-decorated molded product is attached in a state where a slight gap is formed between the dashboard and the attachment surface. Further, the raised portion is exposed on the surface. This greatly impairs the appearance of the attachment part of the skin decorative molded product.

  In order to eliminate such problems, for example, according to the method for manufacturing a decorative product 1 described in Japanese Patent Laid-Open No. 9-309120 (Patent Document 1), as shown in FIG. A part of the peripheral side surface of the lower mold 52 to be supported is provided with a recess 55 that opens along the back surface of the end 7 of the substrate 2. A return body 57 that is always pushed out to the end face of the opening by the elastic body 56 is slidably fitted into the recess 55. A pressing body 51 that advances and retreats toward the opening is disposed outside the lower mold 52 that faces the opening. The pressing body 51 is caused to enter the recess 55 while the terminal 28 of the skin material 8 is brought into close contact with the back surface side of the end portion 7 of the base material, and the terminal 28 of the skin material 8 is brought into contact with the bottom surface (back surface) of the end portion 7 of the base material 2. ) To adhere. When the pressing body 51 is retracted, it is accommodated in the recess 55, and a return body 57 provided so as to be able to advance and retract is returned to the normal position. At this time, the remaining portion of the terminal 28 of the skin material 8 is pushed out from the recess 55. The terminal 28 can be securely bonded to the entire lower surface of the end 7 of the substrate 2.

  Similarly, in order to prevent generation of wrinkles at the corners of the base material, for example, the decorative products disclosed in Japanese Patent Application Laid-Open No. 10-24493 (Patent Document 2) and Japanese Patent Application Laid-Open No. 7-81487 (Patent Document 3). There is a manufacturing method.

  In FIG. 12, the perspective view in the corner part 41c of the box 41 when sticking the skin described in patent document 2 on the box body surface is shown. As shown in the figure, the box 41 is formed in a cover lid shape having a side wall around the bottom plate 41b, and has an open top surface. On the inner wall surface 44 of the side wall of the corner portion 41c of the box body 41, a rib 45 standing upright to the bottom plate 41b is integrally formed with the side wall.

  In this method of attaching the skin, the adhesive 43 is applied to the surface 41a of the box 41, the inner wall surface 44 of the side wall, and the rib 45, and the box 41 is set in a compression mold (upper mold). The cut outer skin 42 is set in a compression mold (lower mold). After closing the mold, the box body surface 41a and the outer skin 42 are pressure-bonded by pressure bonding, and both are adhesively bonded. Thereafter, after the mold is opened and demolded, the skin edge 46 is folded back to the back side of the box 41 so that the skin edge 46 is covered on the rib 45.

  Moreover, in the skin sticking method described in Patent Document 2, the ribs 45 are provided in the corner portion 41c on the back side of the box body 41, thereby suppressing wrinkles of the skin 42 generated in the corner portion 41c. Yes. The rib 45 is preferably formed in a pyramid shape or a semiconical shape. Further, when the ribs 45 are formed in a conical shape extending toward the bottom plate 41b, when covering the box body 41 with the skin 42 cut in a plane, the surplus portion 47 at the end of the skin 42 is The ribs 45 can be effectively absorbed.

  FIG. 13 is a perspective view showing a box-shaped member skin material mounting structure described in Patent Document 3. FIG. When attaching the skin material 62 cut in a plane as shown in the figure to the box-shaped member 61, surplus occurs in the corner portion 63 of the skin material 62 folded back on the back side of the box-shaped member 61. In order to prevent this, in the invention described in Patent Document 3, the plate thickness L2 at the corner portion 63 of the vertical wall portions 64 and 65 is configured to be thinner than the plate thickness L1 at other portions. .

By making the plate thickness L2 in the corner portion 63 of the vertical wall portions 64 and 65 thin, when the skin material 62 is folded and attached to the corner portion 63 while being wound, the length of the attachment portion may be configured to be long. it can. By configuring the corner portion 63 in this manner, the surplus portion of the skin material 62 is not generated in the corner portion 63, and the so-called soot is formed while the skin material 62 overlaps the corner portion 63. It is possible to prevent the corner portion 63 from being covered in the state.
JP-A-9-309120 Japanese Patent Laid-Open No. 10-24493 JP-A-7-81487

  However, in the invention described in Patent Document 1, since the returning body 57 and the pressing body 51 are in a straight line and are in a position orthogonal to the inner edge 50 to which the skin material is to be attached, the skin material 8 is The pressing force applied to the back surface of the end portion 7 of the base material is unlikely to act, and there is no guarantee that the bonding will be reliably performed. Furthermore, when the base material 2 has a corner portion (corner portion), a bulge portion due to wrinkles of the skin material is likely to occur at the corner portion, and the appearance is deteriorated. There is a new problem in terms of product performance that it tends to peel off from the back side.

  On the other hand, in the invention described in Patent Document 2, by covering the skin 42 on the rib 45 erected along the inner wall surface 44 of the corner portion 41 c of the box 41, the surplus portion of the skin 42 is covered with the rib 45. It is configured to absorb by surface area. However, the folding of the skin edge 46 to the back side of the box is performed only after the mold is opened and the mold is removed. Therefore, the crimping operation between the box surface and the skin 42 and the folding operation of the skin edge 46 to the box back side cannot be performed simultaneously.

  Therefore, in the invention in Patent Document 2, the covering operation on the box body surface and the operation of turning the skin edge 46 back to the box rear surface side are performed in separate steps. For this reason, the covering operation and the folding operation of the skin 42 cannot be performed simultaneously. Thus, in the invention in Patent Document 2, since the number of work steps cannot be reduced, it is difficult to suppress an increase in the manufacturing cost of the skin decorative molded product.

  In addition, the surplus portion of the skin 42 that is generated by folding the skin 42 is configured to be absorbed by the rib 45, but in the region between the formation portion of the rib 45 and the end surface of the inner wall surface 44, It is not the structure which can absorb with respect to the surplus part of the skin 42. FIG. For this reason, wrinkles are generated on the end face of the inner wall surface 44 as usual. Therefore, when the skin decoration molded product obtained by the invention described in Patent Document 2 is attached to, for example, a dashboard or the like, if wrinkles are generated on the end surface of the inner wall surface 44 serving as a contact surface, the dash A gap is formed between the mounting surface of the board and the like even if it is a slight one. If even a slight gap is formed between the skin-decorated molded product and its mounting surface, a part of the attached skin-decorated molded product will be lifted, resulting in poor appearance.

  In addition, the generation of wrinkles at the end face of the side wall can be prevented by applying a strong tensile force to the outer skin 42 portion that is folded back on the back side of the box 41 from the end face of the inner wall surface 44. Even so, in order to apply a strong tensile force to the skin 42, the skin 42 must be adhered to at least the formation portion of the rib 45 formed on the inner wall surface 44.

  For this reason, in order to manufacture a skin decorative molded product, as the skin 42, in addition to the area necessary for covering the surface of the skin decorative molded product, it is possible to prevent wrinkles from occurring on the end face of the side wall. An area is required for storage. As an area for preventing generation | occurrence | production of the wrinkle in this end surface, it is comprised in the area | region which spreads to the outer peripheral side of an area required in order to coat | cover the surface of a skin decoration molded product.

  Therefore, a large area is required as an area for preventing wrinkles from occurring on the end face of the side wall. Thus, as the skin 42, a larger area is required in addition to the area covering the surface of the skin decorative molded product, and these areas must be pasted on the skin decorative molded product. . As a result, resources are wasted.

  On the other hand, in the invention in Patent Document 3, the occurrence of wrinkles in the corner portion 63 can be prevented by forming the plate thickness L2 at the corner portion 63 in the vertical wall portions 64 and 65 to be thin. In addition, as the thickness of the end surfaces of the vertical wall portions 64 and 65 in the corner portion 63, that is, the plate thickness at the end surfaces of the vertical wall portions 64 and 65 in the corner portion 63 is reduced, the vertical wall in the corner portion 63 is increased. It is possible to prevent wrinkles from occurring on the end surfaces of the portions 64 and 65.

  However, when the plate thickness at the end faces of the vertical wall portions 64 and 65 in the corner portion 63 is reduced, the closer the portion is to the corner portion 63, the sharper fold line is not given to the skin material 62, and the corner portion 63. A sharp fold line is given to the part of the general part (part of the plate thickness L1) that is separated from the part. As a result, the folding line of the skin material 62 becomes uneven, and the appearance is deteriorated.

  Therefore, in the invention of the present application, in the skin decorative molded product in which the skin is wound around and coated on the surface of the base material, the peripheral side surface and the back side end surface of the peripheral side surface, wrinkles or local lifting due to the skin occurs on the peripheral side surface portion. It is an object of the present invention to provide an apparatus for manufacturing a skin-decorated molded article that can prevent the appearance and improve the appearance in appearance and an efficient manufacturing method thereof. In particular, the surplus amount of the skin material to be adhered to the back side of the base material can be easily adjusted, and in the edge side region of the end surface of the side surface portion located on the decorative side of the peripheral side surface portion It is an object of the present invention to provide a manufacturing apparatus and a manufacturing method thereof which can prevent a typical lift from occurring and can efficiently obtain a high-quality skin-decorated molded article in a series of steps using a single apparatus.

  The above-mentioned subject is the basic composition of the 1st invention of the present invention, the substrate having the surface, the peripheral side surface and the end back surface of the peripheral side surface, the surface of the base material, the peripheral side surface and the end back surface of the peripheral side surface An apparatus for manufacturing a decorative product having a skin material that is wound and fixed tightly, and is formed on a receiving jig for fixing and supporting the base material from the back surface and a part of a peripheral side portion of the receiving jig A recessed hole that opens on the peripheral side surface and extends toward the inside of the substrate, a sliding member that is fitted into the recessed hole and is slidable on the recessed hole, and a hole bottom of the recessed hole And an urging means for urging the sliding member toward the opening, and gripping an edge of the skin material and fixedly supported by the receiving jig. A clamper that can be moved up and down relatively with respect to the receiving jig so as to encapsulate the entire base material from the surface side, and the skin material of the receiving jig Differential pressure generating means that operates in close contact toward the side portion, and the outer end surface position of the sliding member before the deformation of the skin material is set to be within a position of the peripheral side surface of the base material, The sliding member slides toward the hole bottom in the recessed hole portion against the bias of the biasing means through the skin material with a differential pressure during the deformation operation of the skin material by the differential pressure generating means. It achieves by the manufacturing apparatus of the decorative product characterized by doing.

  Here, the differential pressure generating means in the present invention refers to, for example, compressed air or vacuum generating means, or a combination of both, and the differential pressure refers to the pneumatic pressure or vacuum suction force generated by the operation of these differential pressure generating means, etc. The differential pressure generated between the front and back surfaces of the skin material.

  Moreover, by using the manufacturing apparatus of the first invention, the base material having the surface, the peripheral side surface, and the end back surface of the peripheral side surface by the method for manufacturing a decorative product which is the basic configuration of the second invention of the present invention, It is possible to efficiently produce a decorative product having a skin material that is wound around and fixed to the surface, the peripheral side surface, and the back surface of the end portion of the base material.

  That is, in the second invention, the base material is placed and fixed on the surface side of the receiving jig in the manufacturing apparatus of the first invention, and the skin material whose edge is gripped by the clamper is attached to the surface of the base material. The clamper is moved relative to a position sufficient for the edge of the skin material to be in close contact with the entire side surface of the receiving jig, and the differential pressure generating means is operated to generate the differential pressure. The surface material is deformed by the step of winding the surface of the base material from the surface of the base material until it is in close contact with the rear surface of the end portion, and the sliding force is generated by the differential pressure generated by the differential pressure generating means during the winding operation of the surface material. The moving member is slid to the bottom side of the concave hole portion against the urging force of the urging means through the skin material, and the skin material is brought into close contact with the back surface of the end portion of the base material. It is characterized by including.

  According to a preferred aspect, there is a pin-shaped rod having a small diameter at the biasing means side end of the sliding member of the decorative product manufacturing apparatus according to the first aspect of the invention. It further has a rod guide hole extending toward the inside of the tool and slidingly guiding the pin-shaped rod. Further, a sliding position defining that defines a sliding limit position on the opening side and the bottom side of the concave hole portion of the sliding member between a part of the peripheral surface of the sliding member and the receiving jig. It is preferable to provide means.

Effects of the invention

  In the manufacturing apparatus of the first invention, the base material is placed and fixed on the upper surface of the receiving jig, and the skin material whose end edge is gripped by the clamper is brought into close contact with the surface of the base material. Is relatively lowered to a position sufficient to bring the end edge portion into close contact with the entire peripheral side surface of the receiving jig. Next, the differential pressure generating means, i.e., pressure air or vacuum generating means, or both of them are operated in combination, and the skin material is deformed by the differential pressure while passing from the surface of the base material to the peripheral side surface to the back surface side end surface. Engage until close. Due to the differential pressure generated by the differential pressure generating means during the entrainment operation of the skin material, the sliding member is moved through the skin material against the urging force of the urging means toward the inside of the recessed hole portion. It is made to slide and the said skin material is closely_contact | adhered to the back surface side end surface of the said base material.

  At this time, in the skin material, the differential pressure by the differential pressure generating means acts uniformly on the entire surface, and the skin material is uniformly deformed to the front surface, the peripheral side surface, and the end back surface of the base material. It is difficult to cause typical wrinkles and lifts. For example, when a stretchable sheet material is used as the skin material, the skin material once stretched contracts and is easily adapted to the surface of the base material, so that wrinkles and lifting are less likely to occur. In addition, when there is a corner portion in the base material, if the projections on the pyramid are molded and integrated on the inner surface of the corner portion, or the inner surface of the corner portion is made thinner than the other portions, It can absorb wrinkles and lifts caused by the widening of the skin material that adheres, and can prevent wrinkles and lifts.

  Further, as described in a preferred embodiment, the sliding on the opening side and the bottom side of the concave hole portion of the sliding member between a part of the peripheral surface of the sliding member and the receiving jig. When the sliding position defining means for defining the limit position is provided, for example, when the differential pressure acts on the skin material, the outer end surface of the sliding member is stopped within the opening surface of the recessed hole portion of the receiving jig. Further, since it does not enter the inside of the recessed hole portion, the skin material does not enter the recessed hole portion and is not damaged by excessive force. In addition, if an adhesive or the like is applied to at least the back side end surface of the base material or the back surface of the skin material that is in close contact with the back side end surface, the skin material is adhered to the back side end surface of the base material simultaneously with the coating. Efficiency can be further improved.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a device for manufacturing a decorative product and a method thereof according to the present invention will be described in detail based on typical examples shown in the drawings.
FIG. 1 shows an example of a mounting structure of a finisher 12 which is an example of a skin decorative molded product to be mounted on an instrument panel 11 of an automobile. The surface side which is the decorative side of the finisher 12 is covered with the skin material 8. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a perspective view in which a part of the finisher 12 that is the skin decoration product 1 is partially broken.

  As shown in FIG.2 and FIG.3, the skin decoration product 1 is comprised from the base material 2 and the skin material 8 which were injection-molded previously, the surface part 3 which is the decoration side of the base material 2, and its surrounding side surface The outer surface consisting of the back surface side end surface 6 at the lower end of the portion 5 and the same peripheral side surface portion 5 is covered and covered with the skin material 8. In this embodiment, the base material 2 consists of the box body which the whole surface of the substantially rectangular shape opens. However, the base material shape of this invention is arbitrary, and should just have the surface, the surrounding side surface, and the back surface side end surface of the surrounding side surface lower end. Furthermore, the substrate shape is not limited to a rectangular shape, but may be a polygonal shape, a circular shape, a hemisphere, an ellipse, or a smooth curved surface with an uneven surface, and must always have a corner. It is not a thing. However, when there is a corner portion, in order to make it difficult to generate wrinkles on the skin material corresponding to the corner portion, for example, as described in Patent Document 2, a pyramid-like rib shape is formed at the corner portion. The protrusions can be formed and integrated, or, as described in Patent Document 3, the thin portions along the base material depth direction of the corner portions can be formed.

In the following, a configuration example in which the entire decoration side is covered with the skin material 8 will be described. However, as the skin material 8, the entire decoration side may be covered or a part of the decoration side may be covered. You can also.
As the material of the base material 2 used in the present invention, ABS resin (acrylonitrile butadiene styrene copolymer synthetic resin), PP resin (polypropylene resin), PP composite resin (added with talc, mica, etc.), PC resin ( Polycarbonate resin), PC / ABS resin and the like can be used.

  On the other hand, the material constituting the skin material 8 is, in particular, a single layer stretchable urethane resin, polyvinyl chloride resin, PET resin (polyethylene terephthalate resin), PMMA resin (polymethyl methacrylate resin), AS resin (acrylonitrile styrene co-polymer). Polymer sheets) and fiber sheets such as woven and knitted fabrics and nonwoven fabrics can be used. In particular, when a resin sheet is used as the skin material, it is preferable to use a stretchable sheet material without causing wrinkles and local lifting. Further, as the skin material 8, it is also possible to use a structure in which a foamed resin material such as PPF (polypropylene foam) or PEF (polyethylene foam) is backed and integrated with the above-mentioned blade material.

  A decorative pattern such as a wood grain tone or leather tone may be formed on the surface of the skin material 8 made of such a material. The back surface of the skin material 8 can be further coated with an adhesive or an adhesive material in advance. Alternatively, an adhesive, a pressure-sensitive adhesive, or the like is applied to a region corresponding to the folded portion 8a of the skin material 8 that is in close contact with the surface side of the base material 2 that covers the skin material 8 and a part or all of the back surface side end surface of the base material 2. It can also be applied.

Hereinafter, the decorative product manufacturing apparatus 30 according to the present embodiment will be specifically described with reference to FIG. In this embodiment, a configuration example in which the back surface of the skin material 8 is coated with an adhesive will be described.
In FIG. 3, reference numeral 15 denotes a clamper that holds the edge of the skin material 8. In the present embodiment, the clamper 15 grips all or a part of the peripheral edge portion of the skin material 8, and applies the skin material 8 to the base material 2 by the raising / lowering operation and the pneumatic force of the lifting table 17 described later. The decorative side surface, the peripheral side surface, and the back surface side end surface 6 at the lower end of the peripheral side surface are closely encapsulated. Here, in the present invention, the elevating table 17 is fixed, the clamper 15 is lowered, and the decorative side surface, the peripheral side surface, and the back surface side end surface 6 at the lower end of the peripheral side surface are sequentially provided. It can also be tightly encapsulated.

  A receiving jig 16 is positioned and fixed at a predetermined position on the upper surface of the lifting table 17. This receiving jig does not correspond to a lower mold in so-called injection molding or press molding, but is a base material fixing member for mounting and fixing the base material 2. Therefore, the upper mold is unnecessary in the device of the present invention. In the receiving jig 16 according to this embodiment, the base material 2 is formed of a rectangular box as described above, and the bottom surface of the rectangular box is placed on the upper surface of the jig 16. A rectangular block portion having a size larger than that of the bottom surface is provided, and a rectangular frame-shaped flange portion is extended outward from the peripheral surface of the lower end portion. In this embodiment, the receiving jig 16 has a rectangular block portion and a rectangular frame-shaped flange portion. However, in the present invention, the shape is not limited to these shapes. Any shape that conforms to the shape may be used.

  A concave hole 20 is formed over the entire circumference of the peripheral side surface 16a of the rectangular block portion or at a part thereof, extending toward the center of the rectangular block portion. In addition, a small-diameter rod sliding hole 20a that extends linearly toward the central portion of the rectangular block portion is formed in the central portion of the bottom surface of the concave hole portion 20. Furthermore, it exists in the surrounding side surface 16a of the said rectangular block part, The lower end surface of the said recessed hole part 20 has the overhang | projection part 16c which protrudes outside the said surrounding side surface 16a. The overhanging portion 16c is formed with a spring accommodating hole 20b that is open at the top and extends in the vertical direction. The spring accommodating hole 20b accommodates a second compression spring 21 that supports a small ball 22 at the upper end. ing.

  On the other hand, the main body 18a and the pin-shaped rod 18b of the sliding member 18 are slidably inserted into the recessed hole portion 20 and the rod sliding hole 20a. Between the sliding member main body 18a and the bottom surface of the recessed hole portion 20, a first compression spring 19 which is an urging means of the present invention is interposed in a state where the pin-shaped rod 18b is inserted. . Therefore, under normal conditions, the sliding member 18 is urged by the first compression spring 19, and most of the sliding member 18 protrudes out of the opening of the recessed hole portion 20. In the present embodiment, the first compression spring is used as the biasing means. However, for example, a leaf spring may be used, or various small cylinders may be used. Furthermore, a small spherical guide groove that is a portion of the sliding member main body 18a facing the spring accommodating hole 20b and extends linearly from the bottom end of the concave hole portion in the biasing direction of the first compression spring 19 18c is formed.

  The small ball guide groove 18c rolls and guides the small ball 22 supported on the upper end of the second compression spring 21 housed in the spring housing hole 20b of the overhang portion 16c. The outer end of the small ball guide groove 18c has a substantially hemispherical small ball locking hole 18c having a diameter larger than the groove depth for engaging the small ball 22 biased upward by the second compression spring 21. 'Is formed. Due to the presence of the small ball guide groove 18c and the small ball locking hole 18c ′, the linear movement of the sliding member 18 sliding on the concave hole portion 20 by the bias of the first compression spring 19, and the concave hole portion 20 The maximum position and the minimum position that can protrude outward from the head are defined. Incidentally, the retreat limit position where the sliding member 18 according to the present embodiment can enter the inside of the recessed hole portion 20 is such that the outer end surface of the sliding member 18 is the back side end surface 6 of the substrate 2 as shown in FIG. It is a position that coincides with the inner edge of the base material, and its forward limit position is the outer peripheral surface position of the peripheral side surface portion 5 of the base material 2 as shown in FIG. However, the sliding limit positions shown in FIGS. 3 and 7 are merely examples, and can be arbitrarily defined depending on the type of the decorative product. Here, the small ball guide groove 18c and the small ball 22 supported on the upper end of the second compression spring 21 correspond to the sliding position defining means in the present invention.

Now, an embodiment of the manufacturing method of the present invention for manufacturing a decorative product using the decorative product manufacturing apparatus 30 of the present invention having the above configuration will be specifically described with reference to FIGS. To do.
The manufacturing process of the skin decoration product 1 according to the present invention will be described, for example, with a pneumatic molding machine using a high-pressure blower (not shown). Of course, in the present invention, an intake means such as a suction pump is used. A differential pressure generating means combining a vacuum forming machine alone or a combination of the high pressure blower and a suction pump can be employed. FIG. 3 shows the state before the skin material 8 is bonded to the base material 2 in the form of a cross-sectional view of the main part.

  The decorative product manufacturing apparatus 30 includes a receiving jig 16, a lifting table 17 on which the receiving jig 16 is placed and fixed, and a clamper 15 that holds the peripheral edge of the skin material 8. Of course, the decorative product manufacturing apparatus 30 also includes a pressure air source (not shown) and a casing that hermetically accommodates the above components.

  The periphery of the skin material 8 that is heated and softened is gripped by a clamper 15. 3 conceptually shows smoke rising from the upper surface side of the skin material 8 that has been heated and softened in advance, but in FIG. 4 and subsequent drawings, it rises from the upper surface side of the skin material 8. Illustration of smoke is omitted. In some cases, the entire receiving jig 16 can be heated to such an extent that the skin material 8 is softened.

  The base material 2 tightly encapsulated by the skin material 8 is placed and fixed on the receiving jig 16 so that the surface thereof faces the skin material 8. That is, the concave-shaped part side which is the back surface side of the base material 2 is placed on the receiving jig 16, and the convex-shaped part side which is the decoration side of the base material 2 is arranged toward the back surface of the skin material 8. Yes. At this time, as shown in FIG. 3, the outer end surface of the sliding member main body 18 a has the position of the small ball 22 supported by the upper end of the second compression spring 21 provided on the overhanging portion 16 c of the receiving jig 16. It exists in the edge part of the concave hole part bottom face side of the small ball guide groove 18c, and is made to correspond with the surrounding surface of the surrounding side part of the base material 2. FIG.

  Here, as shown in FIG. 4, when the elevating table 17 is raised toward the skin material 8, or when the skin material 8 gripped by the clamper 15 is lowered toward the base material 2, it is heated. The softened skin material 8 abuts on the surface portion 3 of the base material 2 and is stretched along the surface portion 3 of the base material 2 while gradually applying tension, and wraps around the surface portion 3. Then, when the clamper 15 holding the skin material 8 comes into contact with the lifting table 17, the lifting of the lifting table 17 or the lowering of the clamper 15 is stopped.

  At this time, the surface material of the skin material 8 and the base material 2 is gradually wrapped in the peripheral side surface while being in close contact with the surface part 3 of the base material 2 while applying tension to the softened skin material 8. 3 are removed from the gap between the base material 2 and the skin material 8 and covered with the skin material 8 in close contact with the surface portion 3 of the base material 2 without any air bubbles. can do.

  When the clamper 15 comes into contact with the lifting table 17, the periphery of the substrate 2 can be sealed by the skin material 8. After the periphery of the base material 2 is sealed by the skin material 8, a pneumatic device (not shown) is operated to apply the pneumatic force to the entire outer surface of the skin material 8 as shown in FIG. . This pneumatic force acts evenly on the entire outer surface of the skin material 8, and the skin material 8 softened by preheating is deformed along the outline shape of the base material 2, and the surface of the base material 2, the peripheral side surface and It is going to stick to the back side end face of the lower end of the peripheral side face. At this time, the outer end surface 18 a ′ of the sliding member main body 18 a accommodated in the recessed hole portion 20 protrudes to the outer peripheral surface position of the peripheral side surface portion 5 of the substrate 2 on the peripheral side surface 16 a of the rectangular block portion of the receiving jig 16. ing.

  As a result, as shown in FIG. 5, the skin material 8 adheres along the surface, the peripheral side surface, and the outer end surface 18 a ′ of the sliding member 18, as shown in FIG. In this way, the skin material 8 tends to continue to be deformed along the back surface side end surface of the lower end of the peripheral side surface portion 5 of the base material 2. At this time, the pneumatic force involved in the deformation of the skin material 8 becomes a force that pushes the outer end surface 18 a ′ of the sliding member 18 through the skin material 8, and the concave member formed in the jig 16 receiving the sliding member 18. The hole 20 moves backward against the biasing force of the first compression spring 19. At the time of the retraction, the small sphere 22 supported on the upper end of the second compression spring 21 provided on the overhanging portion 16c of the receiving jig 16 leaves the end surface on the bottom side of the recessed hole portion of the small sphere guide groove 18c. Guided by the guide groove 18c, until the small ball 22 reaches the small ball locking hole 18c ′, the sliding member 18 together with the pin-shaped rod 18b faces the concave hole portion 20 and the rod sliding hole 20a toward the back. Slide linearly without rattling.

  When the small sphere 22 reaches the small sphere locking hole 18c ', the small sphere 22 does not advance any further and stops the retreat of the sliding member. This stop position becomes the inner edge position of the back surface side end surface 6 which is the lower end surface of the peripheral side surface portion 5 of the substrate 2 as described above. When the sliding member 18 is in this retreat limit position, the skin material 8 is formed on the back surface side end surface 6 of the base material peripheral side surface portion 5 as shown in FIG. The winding is finished in a state of being in close contact with the rear surface side end surface 6 of the part 5. At this time, if an adhesive or the like is applied to the front surface, peripheral side surface, and back surface side end surface 6 of the base material 2, the skin material 8 includes the entraining end portion of the skin material 8 after cooling. It is bonded and fixed to the front surface, peripheral side surface, and back surface side end surface 6.

  In this state, the elevating table 17 is lowered or the clamper 15 is moved upward to remove the base material 2 together with the skin material 8 from the jig 16. When the skin material 8 is separated from the receiving jig 16, the sliding member 18 slides the concave hole portion 20 toward the opening side under the elastic force of the first compression spring 19 disposed in the concave hole portion 20. At this time, the sliding member 18 receives the elasticity of the second compression spring 21 accommodated in the spring accommodating hole 20b and is guided to the small sphere 22 fitted in the small sphere guide groove 18c so that the recessed hole portion 20 moves to the opening side. However, since the small ball locking hole 18c ′ formed in the outer end surface side end of the small ball guide groove 18c accommodates and locks the small ball 22, the sliding member 18 is further recessed. It does not protrude outward from the 20 openings. The forward limit position of the outer end surface 18a 'of the sliding member 18 at this time is a position that coincides with the outer peripheral surface of the peripheral side surface portion 5 of the base member 2, as shown in FIG.

The primary product thus removed from the receiving jig 16 is sent to the next post-finishing process.
Hereinafter, a finishing process is demonstrated based on FIGS. 8-10.
FIG. 8 shows a state in which the base material 2 on which the skin material 8 is decorated is removed from the decorated product manufacturing apparatus 30. FIG. 9 and FIG. 10 show a state in which the skin material 8 is adhered with leaving a partial end surface of the back surface side end surface 6 at the lower end of the peripheral side surface portion 5 of the base material 2.

  As shown in FIG. 9, the base material 2 covered with the skin material 8 removed from the decorative product manufacturing apparatus 30 is placed on the support base 31 so that the skin material 8 is on the lower side. The excess part of the skin material 8 is trimmed by 32. The skin material 8 remaining on the substrate 2 side after trimming is a portion covering the surface portion 3 of the substrate 2 and the back surface side end surface 6 of the peripheral side surface portion 5. Excess portions in the skin material 8 are removed from the base material 2 by trimming.

  Thus, on the back surface side of the base material 2, as shown in FIG. 10, the covered skin material 8 is left only on the outer peripheral edge portion of the back surface side end surface 6 of the peripheral side surface portion 5 of the base material 2. Only the minimum necessary part can be left on the substrate 2. For this reason, a skin body decoration molded product can be completed in the state by which the excess part in the skin material 8 is not left on the back surface side of the base material 2. FIG.

It is a principal part front view in the vehicle which shows the structural example which attached the decorative molded product to the vehicle. It is AA sectional drawing of FIG. It is principal part sectional drawing of the apparatus which shows the state before sticking an outer_skin | epidermis to a base material. It is principal part sectional drawing of the apparatus which shows the state in the middle of sticking the skin to a base material. It is principal part sectional drawing which shows the state which deform | transformed the outer skin with a pneumatic force and has made it adhere to a base material. It is principal part sectional drawing which shows the state which a sliding member slides in the bottom face direction of a recessed hole part using the pneumatic force at the time of a deformation | transformation of a skin material. It is principal part sectional drawing which shows the state at the time of winding a skin material in a base material and completing sticking. It is principal part sectional drawing of the base material taken out from the decorating product manufacturing apparatus, and skin. It is principal part sectional drawing which shows the state at the time of trimming of a skin. It is a fragmentary perspective view which shows the principal part of the decorating product which finished trimming. It is principal part sectional drawing which shows the state at the time of the conventional decoration product manufacture. It is a fragmentary perspective view which shows an example of the corner part of the conventional base material. It is a fragmentary perspective view which shows the example of attachment structure of the skin material with respect to the conventional base material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 (Skin) Decorated product 2 Base material 3 Front surface part 4 Back surface part 5 Circumferential side surface part 6 Back surface side end surface 8 Outer material 8a Turn-up part 11 Instrument panel 12 Finisher 15 Clamper 16 Receiving jig 16a (Rectangle block part) circumference Side surface 16b Peripheral side surface 16c (of flange portion) Overhang portion 17 Lifting table 18 Sliding member 18a Sliding member body 18a 'Outer end surface 18b Pin-shaped rod 18c Small ball guide groove 18c' Small ball locking hole 19 First compression spring 20 concave hole portion 20a rod sliding hole 20b spring accommodating hole 21 second compression spring 22 small ball 30 decorative product manufacturing apparatus 31 support base 32 trimmer

Claims (4)

A decoration having a base material having a surface, a peripheral side surface, and an end back surface of the peripheral side surface, and a skin material wound and fixed around the surface, the peripheral side surface and the end back surface of the peripheral side surface of the base material Product manufacturing equipment,
A receiving jig for fixing and supporting the base material from the back surface;
A recessed hole formed in a part of the peripheral side portion of the receiving jig, opening in the peripheral side surface and extending toward the inside of the base material,
A sliding member that is inserted into the concave hole portion and is capable of sliding the concave hole portion;
An urging means disposed between the hole bottom of the recessed hole portion and the sliding member, and urging the sliding member toward the opening;
A clamper that is capable of moving up and down relative to the receiving jig so as to enclose the entire base material fixedly supported by the receiving jig from the surface side by gripping an edge of the skin material;
Differential pressure generating means for operating the skin material in close contact toward the peripheral side of the receiving jig,
The outer end surface position of the sliding member before deformation of the skin material is set to be in a position within the peripheral side surface position of the base material,
The sliding member slides in the recessed hole portion toward the bottom of the hole against the urging force of the urging means through the skin material with a differential pressure during the deformation operation of the skin material by the differential pressure generating means. An apparatus for producing a decorative product, characterized by moving. The sliding member has a small-diameter pin-shaped rod at its biasing means side end,
The decorative product according to claim 1, further comprising a rod guide hole that extends toward the inside of the receiving jig and slides and guides the pin-shaped rod at the bottom of the concave hole portion. Manufacturing equipment.   Sliding position defining means for defining a sliding limit position on an opening side and a hole bottom side of the concave hole portion of the sliding member between a part of a peripheral surface of the sliding member and the receiving jig. It has, The manufacturing apparatus of the decorative product of Claim 1 or 2 characterized by the above-mentioned. Using the manufacturing apparatus according to claim 1, a base material having a surface, a peripheral side surface, and an end back surface of the peripheral side surface, and the surface of the base material, the peripheral side surface, and the end back surface are wound and fixed tightly A method for producing a decorative product having an outer skin material,
Mounting and fixing the base material on the surface side of the receiving jig,
Bringing the skin material whose edge is gripped by the clamper into close contact with the surface of the base material;
Relatively moving the clamper to a position sufficient for the edge of the skin material to be in close contact with the entire side surface of the receiving jig;
Actuating the differential pressure generating means, wrapping until the end face side back surface is in close contact from the surface of the base material while deforming the skin material by the differential pressure,
Due to the differential pressure generated by the differential pressure generating means during the winding operation of the skin material, the sliding member is slid to the bottom of the hole through the skin material against the bias of the biasing means. Moving the skin material in close contact with the back of the end of the substrate;
The manufacturing method of the decorative product characterized by including.

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