JP5684019B2 - Manufacturing method of vehicle interior material and injection molding apparatus - Google Patents

Description

  The present invention relates to a method for manufacturing an interior material for a vehicle and an injection molding apparatus, and more specifically, to a method for manufacturing an interior material for a vehicle capable of improving a product quality by securing sufficient joint strength of another component, and to the same. The present invention relates to an injection molding apparatus used.

  2. Description of the Related Art Conventionally, as a method for manufacturing a vehicle interior material such as a ceiling material, a method is known in which another part such as a clip seat or a side clip is formed by injection molding on the back surface of an interior base material (for example, Patent Document 1). And 2 etc.). In these Patent Documents 1 and 2, as an interior base material, a board material formed by mixing a vegetable fiber such as kenaf and a thermoplastic resin and formed by hot press molding is used, and gold is applied to one side of the board material. It is disclosed that another part is directly formed by pressing a mold to form a cavity and injecting a molten resin. In this injection molding, the molten resin enters between the plant fibers constituting the board material, and the bonding strength is increased by ensuring the catching with the fibers during cooling. In addition, according to the said injection molding, compared with the method of fixing another components using adhesives, such as hot melt, processing time can be shortened significantly.

Japanese Patent Laid-Open No. 2003-231181 Japanese Patent Laid-Open No. 2006-212824

  Here, as the above-mentioned interior base material, one having a non-breathable air-proof sheet layer for preventing dirt due to ventilation is known. However, since this air-blocking sheet layer is disposed on one side of the interior base material, another part is separately formed by injection molding on one side of the interior base material simply using the techniques of Patent Documents 1 and 2 above. In this case, the separate parts are easily peeled from each other with the air-proofing sheet, and sufficient bonding strength cannot be obtained. As a result, warpage or the like occurs in another member, and product quality is degraded.

  Moreover, in the technique of the above-mentioned Patent Document 1, holes are formed in the interior base material in advance in order to increase the bonding strength of other parts, and the interior base material is perforated as a pre-process of injection molding. There is a need. As a result, the processing time is increased, the processing equipment is increased, and the productivity is lowered. Furthermore, it is difficult to accurately position the joining position of another part to the interior base material and the drilling position of the hole.

  The present invention has been made in view of the above-described situation, and provides a method for manufacturing an interior material for a vehicle and an injection molding apparatus used therefor that can ensure sufficient bonding strength of another part and improve product quality. The purpose is to provide.

In order to solve the above problem, the invention according to claim 1 is a method for manufacturing an interior material for a vehicle, in which another part is formed on the surface of the interior base material by injection molding. On the surface side, a non-breathable air-venting sheet layer is provided, and an installation step of installing an injection molding device in a range where the separate part is formed on the surface of the interior base material, and the injection A drilling step of drilling a hole through the air-proofing sheet layer from the surface of the interior base material by a molding device; a molten resin supply step of supplying a molten resin into the hole by the injection molding device; A cooling step of cooling the molten resin supplied into the holes, and a demolding step of removing the injection molding device from the surface of the interior base material , the drilling step of the injection molding device Slide needle or slide provided in the cavity And summarized in that a step of drilling the hole by.
Invention of Claim 2 is set to Claim 1, The said interior base material is provided with the fiber layer and the said sheet | seat layer for ventilation prevention laminated | stacked on the surface of this fiber layer, The said perforation process is The gist is that the injection molding apparatus is a step of drilling the hole reaching the fiber layer from the surface of the interior base material through the air blocking sheet layer .
In order to solve the above problem, the invention described in claim 3 is an injection molding apparatus for forming another part on the surface of the interior base material by injection molding, on the surface side of the interior base material. A non-breathable air-blocking sheet layer is provided, and a perforating mechanism that perforates the air-proofing sheet layer from the surface of the interior base material, and a perforation mechanism. A molten resin supply mechanism for supplying a molten resin into the cavity of the injection molding apparatus including the provided hole, and the drilling mechanism is a slide needle or slide provided in the cavity of the injection molding apparatus The gist is provided with a blade and a drive source for slidingly driving the slide needle or the slide blade .

According to the method for manufacturing an interior material for a vehicle of the present invention, an injection molding apparatus is installed in a range in which another part of the surface of the interior base material is formed, and the sheet layer for ventilation prevention is formed from the surface of the interior base material by the injection molding apparatus. A hole is drilled through the substrate, molten resin is supplied from the cavity into the hole by the injection molding device, the molten resin supplied into the hole is cooled, and the injection molding device is removed from the surface of the interior substrate. It is. As described above, since the molten resin is supplied to the hole penetrating the sheet layer for ventilation prevention, the molten resin enters the interior of the interior base material through the hole when another part is injection-molded. Therefore, it is possible to ensure sufficient bonding strength of another member to the interior base material and improve product quality. In addition, since the holes are drilled by the injection molding device, it is not necessary to perforate the interior base material as a pre-process of injection molding, shortening the processing time and reducing the processing equipment. Productivity. Furthermore, the joining position of another part with respect to the interior base material and the hole drilling position can be accurately and easily positioned.
Further, the drilling process, since in the step of drilling the hole by sliding the needle or slide edge disposed in the cavity of the injection molding apparatus, drilled in a separate part of the joint position and the hole for the interior base material The position can be more accurately and easily determined.
According to the injection molding apparatus of the present invention, a hole is drilled from the surface of the interior base material through the venting sheet layer by the punching mechanism, and the hole of the injection molding apparatus including the hole drilled by the molten resin supply mechanism is included. Molten resin is supplied into the cavity. Therefore, it is used suitably for the manufacturing method of the interior material for vehicles concerning the above-mentioned this invention.

The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
It is a top view of the ceiling material for vehicles which concerns on an Example. It is a principal part perspective view of the said ceiling material for vehicles containing the clip seat which concerns on an Example. It is a principal part enlarged view of FIG. It is the IV-IV sectional view taken on the line of FIG. It is a principal part disassembled perspective view of the said ceiling material for vehicles containing the side clip which concerns on an Example. It is a longitudinal cross-sectional view of the said vehicle ceiling material. It is a perspective view which shows typically the manufacturing apparatus of the ceiling material for vehicles which concerns on an Example. It is a longitudinal cross-sectional view which shows typically the injection molding apparatus which concerns on an Example. It is explanatory drawing for demonstrating the manufacturing method of the said ceiling material for vehicles. It is explanatory drawing for demonstrating the manufacturing method of the said ceiling material for vehicles. It is explanatory drawing for demonstrating the manufacturing method of the said ceiling material for vehicles. It is explanatory drawing for demonstrating the manufacturing method of the said ceiling material for vehicles. It is explanatory drawing for demonstrating the manufacturing method of the said ceiling material for vehicles. It is explanatory drawing for demonstrating the manufacturing method of the said ceiling material for vehicles. It is a principal part top view of the ceiling material for vehicles of other forms, (a) shows a form in which a plurality of slit-like holes were formed, and (b) a form in which a single slit-like hole was formed. (C) shows the form which is not provided with a junction part. Furthermore, it is a principal part exploded perspective view of the ceiling material for vehicles of other forms, (a) shows the form in which a plurality of needle-like holes were formed, and (b) shows the form in which a plurality of slit-like holes were formed. Indicates. It is explanatory drawing for demonstrating the manufacturing method of the ceiling material for vehicles of other forms.

  The items shown here are exemplary and illustrative of the embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

1. Method for manufacturing vehicle interior material Embodiment 1 The vehicle interior material manufacturing method according to the present invention is a vehicle interior material manufacturing method in which different parts (3, 4) are formed by injection molding on the surface of an interior substrate (2), the interior substrate On the surface side, a non-breathable air blocking sheet layer (7) is provided, and the injection molding device (22) is installed in a range where another part of the surface of the interior base material is formed. A step of drilling holes (13, 15) from the surface of the interior base material through the surface of the interior substrate by an injection molding device, and a molten resin (b) in the hole by the injection molding device A molten resin supply step for supplying, a cooling step for cooling the molten resin supplied into the holes, and a demolding step for removing the injection molding apparatus from the surface of the interior base material (for example, FIG. 9 to FIG.

  Embodiment 1 As a method for manufacturing the vehicle interior material according to the present invention, for example, the drilling step includes a step of drilling the hole with a slide needle (26a) or a slide blade provided in the cavity (25a) of the injection molding apparatus. (For example, see FIG. 10 etc.). In this case, the slide needle or slide blade is usually provided so as to slide through the cavity.

  Embodiment 1 As a method for manufacturing a vehicle interior material according to the present invention, for example, the interior base material includes a fiber layer (6) and the air-venting sheet layer laminated on the surface of the fiber layer. The setting step may include a mode (for example, see FIG. 13 and the like) in which a hole reaching the fiber layer through the air-permeable sheet layer from the surface of the interior base material is formed by an injection molding apparatus. . As a result, the molten resin easily enters the fiber layer having a relatively low density through the holes. Therefore, the strong anchor effect can be exhibited and the joint strength of another member can further be improved. In this case, it is preferable that the front end side of the molten resin entering the hole is hardened in a bulging shape so as to be engaged with the peripheral side of the hole of the air-venting sheet layer (see, for example, FIG. 14). In addition, the said fiber layer can be formed using the thermoplastic resin binder which connects a fiber (for example, plant fiber, glass fiber, carbon fiber, etc.) and a fiber, for example.

  Embodiment 1 For example, in the above-described installation step, the mold (25) of the injection molding device (22) is brought into contact with the surface of the interior base material to form the cavity (25a). The molten resin supplying step is a step of supplying the molten resin into the holes by supplying the molten resin (b) into the cavity by an injection molding apparatus (for example, FIG. 12 and the like). Reference) can be given.

2. Injection molding apparatus Embodiment 2 The injection molding apparatus according to the present invention is an injection molding apparatus (22) for forming another part (3, 4) on the surface of an interior base material (2) by injection molding, Further, a non-breathable air blocking sheet layer (7) is provided, and a perforating mechanism (26) that drills holes (13, 15) from the surface of the interior base material through the air blocking sheet layer. ) And a molten resin supply mechanism (27) for supplying the molten resin into the cavity (25a) of the injection molding apparatus including the hole drilled by the drilling mechanism (for example, FIG. 8). Etc.). The injection molding apparatus can further include, for example, a cooling mechanism (28) that cools the molten resin supplied to the holes.

  The drilling mechanism includes, for example, a slide needle (26a) or a slide blade provided in a cavity (25a) of an injection molding device (22), a drive source (26b) that slide-drives the slide needle or the slide blade, Can be provided. The molten resin supply mechanism is heated by, for example, a cylinder (27a) to which the resin material (a) is supplied, a heater (27b) disposed on the outer peripheral side of the cylinder, and the heater. And an extruded member (27d) for injecting the molten resin (b) from the supply nozzle (27c) into the cavity.

3. Vehicle interior material manufacturing apparatus Embodiment 3 A vehicle interior material manufacturing apparatus according to the present invention is a vehicle interior material manufacturing apparatus in which different parts (3, 4) are formed on the surface of an interior base material (2) by injection molding. 2. The injection molding apparatus (22) and a moving mechanism (23) that moves the injection molding apparatus close to and away from the interior base material (see, for example, FIG. 7).

  Hereinafter, the present invention will be specifically described with reference to the drawings. In this embodiment, a vehicle ceiling material is exemplified as the “vehicle interior material” according to the present invention.

(1) Configuration of Vehicle Ceiling Material As shown in FIG. 1, a vehicle ceiling material 1 according to the present embodiment includes a ceiling base material 2 (illustrated as an “interior base material” according to the present invention), and this. A plurality of clip seats 3 and side clips 4 ("separate parts" according to the present invention) formed by injection molding on the surface of the ceiling base material 2 (surface facing the outside of the passenger compartment when the vehicle ceiling material is installed in the vehicle) As an example).

  As shown in FIG. 4, the ceiling base material 2 includes a fiber layer 6 made of a plant fiber such as kenaf and a thermoplastic resin binder that connects the plant fiber, and a non-layer laminated on one surface of the fiber layer 6. An air-permeable sheet layer 7 having air permeability. The air blocking sheet layer 7 is disposed on the surface side of the ceiling base material 2. Further, a non-slip layer 8 made of nonwoven fabric is laminated on the surface of the air-venting sheet layer 7. A skin layer 10 made of a nonwoven fabric is laminated on the other surface of the fiber layer 6 with an adhesive layer 9 interposed therebetween. In the present embodiment, the ceiling base material 2 is formed by using the above laminate as a board material and forming the board material into a predetermined ceiling shape by press molding. Further, a three-layered sheet layer in which a polypropylene intermediate layer is laminated between a pair of nylon surface layers is adopted as the air-proof sheet layer 7.

  As shown in FIGS. 2 to 4, the clip seat 3 is substantially U-shaped in a plane that holds a clip 12 (shown in phantom lines in FIG. 4) that is locked to a vehicle roof panel (not shown). The seat portion main body 3a and a joint portion 3b extending in a planar shape outward from the outer peripheral side of the seat portion main body 3a are provided. The seat main body 3 a and the joint portions 3 b are joined to the surface of the ceiling base material 2. Moreover, the said side clip 4 is provided with the clip main body 4a latched by the roof panel (illustration omitted) of a vehicle, as shown in FIG.5 and FIG.6. The clip body 4 a is joined to the surface of the ceiling base material 2.

  Here, on the surface side of the ceiling base material 2, as shown in FIGS. 3 and 4, the air-proofing sheet layer 7 extends from the surface including the seat body 3 a of the clip seat 3 and the joint surface of each joint 3 b. A plurality of needle-like holes 13 extending through the fiber layer 6 are formed. The plurality of holes 13 are formed in alignment at substantially equal intervals p1. A portion 14 of the clip seat 3 is inserted into each of the holes 13, and the tip end side 14 a of the portion 14 of the clip seat 3 is locked to the peripheral side of the hole 13 of the air blocking sheet layer 7. In the fiber layer 6, it is formed in a bulging shape (that is, a meat pool shape).

  Further, as shown in FIGS. 5 and 6, on the surface side of the ceiling base material 2, the fiber layer 6 penetrates the air-proof sheet layer 7 from the surface including the joint surface of the clip body 4 a of the side clip 4. A plurality of needle-like holes 15 are formed. The plurality of holes 15 are formed in alignment at substantially equal intervals p2. Further, a part 16 of the side clip 4 is inserted into each of the holes 15, and the leading end side 16 a of the part 16 of the side clip 4 is locked to the peripheral side of the hole 15 of the air-venting sheet layer 7. In this way, the fiber layer 6 is formed in a bulging shape (that is, in the form of a puddle). In addition, the depth (for example, about 2 mm) of the holes 13 and 15 is approximately ½ of the thickness (for example, about 4 mm) of the ceiling base material 2.

(2) Configuration of Vehicle Ceiling Material Manufacturing Apparatus As shown in FIG. 7, the vehicle ceiling material manufacturing apparatus 20 according to this embodiment includes a mounting table 21 on which the ceiling base material 2 can be mounted, A plurality of injection molding devices 22 arranged to face the mounting table 21 and a moving mechanism 23 that moves the injection molding devices 22 closer to and away from the mounting table 21 are provided. The moving mechanism 23 includes a drive cylinder 23 a that moves the injection molding devices 22 up and down with respect to the mounting table 21.

  As shown in FIG. 8, each of the injection molding apparatuses 22 includes a molding die 25 that forms a closed cavity 25 a in contact with the surface of the ceiling base material 2 on the mounting table 21, and a surface of the ceiling base material 2. A piercing mechanism 26 that pierces the fiber layer 6 through the air blocking sheet layer 7, and a hole 25 including the holes 13 and 15 pierced by the piercing mechanism 26. And a molten resin supply mechanism 27 for supplying the molten resin to the inside.

  The drilling mechanism 26 includes a plurality of slide needles 26a that are slidably provided in the mold 25 and slide through the cavity 25a, and a drive cylinder 26b that slides the slide needles 26a. The molten resin supply mechanism 27 includes a cylindrical body 27a to which the resin pellets a are supplied, a heater 27b disposed on the outer peripheral side of the cylindrical body 27a, and a molten resin b ( 11), and a plunger 27d for injecting into the cavity 25a from the supply nozzle 27c. Each injection molding apparatus 22 further includes a cooling mechanism 28 for cooling the molten resin b supplied into the cavity 25a and the holes 13 and 15. The cooling mechanism 28 has a refrigerant supply passage 28a through which an appropriate refrigerant such as cooling water is supplied.

(3) Method for Manufacturing Vehicle Ceiling Material Next, a method for manufacturing a vehicle ceiling material using the vehicle ceiling material manufacturing apparatus 20 having the above configuration will be described. First, as shown in FIG. 9, the ceiling on the mounting table 21 so that the molding die 25 of each injection molding device 22 faces the range in which the clip seat 3 and the side clip 14 on the surface of the ceiling base material 2 are formed. The base material 2 is set. At this time, the slide needle 26a protrudes from the mold 25 by the operation of the drive cylinder 26b. Next, as shown in FIG. 10, each injection molding device 22 is lowered, and a molding die 25 of the injection molding device 22 is brought into contact with the surface of the ceiling base material 2 to form a closed cavity 25 a and project. With the slide needle 26a in the state, holes 13 and 15 penetrating from the surface of the ceiling base material 2 to the fiber layer 6 through the air blocking sheet layer 7 are formed (see FIG. 13).

  Next, as shown in FIG. 11, the slide needle 26 a is placed in the mold 25 by the operation of the drive cylinder 26 b. Further, the resin pellet a put into the cylindrical body 27a is heated by the heater 27b to be a molten resin b. Thereafter, as shown in FIG. 12, the molten resin b in the cylindrical body 27a is injected into the cavity 25a of the mold 25 by the operation of the plunger 27d, and the molten resin b is supplied into the holes 13 and 15 by this injection. The At this time, a part of the molten resin b supplied into the holes 13 and 15 enters between the fibers in the fiber layer 6 and expands in a bulging shape (see FIG. 14). Next, the molten resin b supplied into the cavity 25 a and the holes 13 and 15 is cooled by the cooling mechanism 28. Next, each injection molding device 22 is raised, the molding die 25 is removed from the surface of the ceiling base material 2, and the vehicle ceiling material 1 is obtained.

(4) Effect of Example As described above, according to the vehicle ceiling material manufacturing method of the present example, the injection molding device 22 is provided for the range in which the clip seat 3 and the side clip 4 on the surface of the ceiling base material 2 are formed. The holes 13 and 15 are drilled from the surface of the ceiling base material 2 by the injection molding device 22 through the air permeation sheet layer 7, and the molten resin b is passed from the cavity 25 a to the holes 13 and 15 by the injection molding device 22. The molten resin supplied into the holes 13 and 15 is cooled, and the injection molding device 22 is removed from the surface of the ceiling base material 2. As described above, since the molten resin b is supplied to the holes 13 and 15 penetrating the air blocking sheet layer 7, the molten resin b is formed in the holes 13 and 15 when the clip seat 3 and the side clip 4 are injection-molded. Through the ceiling substrate 2. Therefore, sufficient joining strength of the clip seat 3 and the side clip 4 with respect to the ceiling base material 2 can be ensured, and product quality can be improved. Further, since the holes 13 and 15 are drilled by the injection molding device 22, it is not necessary to drill the ceiling base material 2 as a pre-process of the injection molding, and the processing time is shortened. Processing facilities can also be reduced to improve productivity. Furthermore, the joining position of the clip seat 3 and the side clip 4 with respect to the ceiling base material 2 and the drilling positions of the holes 13 and 15 can be accurately and easily positioned.

  Further, in this embodiment, since the holes 13 and 15 are formed by the slide needle 26a provided in the cavity 25a of the injection molding device 22, the clip seat 3 and the side clip 4 are joined to the ceiling base material 2. The position and the drilling position of the holes 13 and 15 can be positioned more accurately and easily.

  Further, in this embodiment, the ceiling base material 2 is composed of a fiber layer 6 using fibers and a thermoplastic resin binder that joins the fibers, and the above-mentioned air-proof sheet layer 7 laminated on the surface of the fiber layer 6. Since the holes 13 and 15 that penetrate the air blocking sheet layer 7 from the surface of the ceiling base material 2 and reach the fiber layer 6 are formed by the injection molding device 22, the molten resin b It becomes easy to enter into the fiber layer 6 having a relatively low density through the holes 13 and 15. Therefore, it is possible to further increase the bonding strength between the clip seat 3 and the side clip 4 by exerting a strong anchor effect.

  In addition, according to the injection molding apparatus 22 of the present embodiment, the holes 13 and 15 are drilled from the surface of the ceiling base material 2 by the drilling mechanism 26 from the surface of the ceiling base material 2, and the molten resin supply mechanism 27 The molten resin b is supplied into the cavity 25a including the drilled holes 13 and 15. Therefore, it is used suitably for the manufacturing method of the above-mentioned vehicle ceiling material.

  Moreover, according to the vehicle ceiling material 1 of the present embodiment, the ceiling base material 2 has the holes 13 and 15 penetrating the air-proofing sheet layer 7 from the surface including the joint surface of the clip seat 3 and the side clip 4. The clip seat 3 and the portions 14 and 16 of the side clip 4 are inserted into the holes 13 and 15, so that sufficient bonding strength of the clip seat 3 and the side clip 4 to the ceiling base material 2 is ensured. Product quality can be improved.

  Further, in the present embodiment, since the plurality of holes 13 and 15 are formed by being aligned at substantially equal intervals, the joint strength between the clip seat 3 and the side clip 4 can be further increased.

  Further, in this embodiment, the tip end sides 14a and 16a of the clip seat 3 and the portions 14 and 16 of the side clip 4 bulge so as to be engaged with the peripheral sides of the holes 13 and 15 of the air blocking sheet layer 7. Since it formed in the shape, the firm anchor effect can be exhibited and the joint strength of the clip seat 3 and the side clip 4 can further be raised.

  Further, in this embodiment, the ceiling base material 2 includes a fiber layer 6 using fibers and a thermoplastic resin binder that joins the fibers, and a vent layer sheet layer 7 laminated on the surface of the fiber layer 6. Since the tip ends of the holes 13 and 15 reach the fiber layer 6, when the clip seat 3 and the side clip 4 are injection-molded, the molten resin b is relatively transferred through the holes 13 and 15. It becomes easy to enter the low-density fiber layer 6. Therefore, a stronger anchor effect can be exhibited.

  Furthermore, in the present embodiment, the clip seat 3 includes a seat body 3a and a plurality of joint portions 3b that extend outward from the outer peripheral side of the seat body 3a and are joined to the surface of the ceiling base material 2. Since the holes 13 and 15 are formed so as to penetrate through the air-venting sheet layer 7 from the surface including the joint surface of the seat body 3a and each joint 3b of the ceiling base material 2, the clip seat Therefore, it is possible to suppress a decrease in product quality such as warping of the clip seat 3 and to secure a sufficient joint strength of the clip seat 3.

  In the present invention, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the above-described embodiment, the holes 13 and 15 are formed at the same time when the injection molding apparatus 22 is installed on the ceiling base material 2. However, the present invention is not limited to this. A hole may be drilled after the injection molding apparatus is installed, or a hole may be drilled before the injection molding apparatus is installed on the interior base material. That is, the installation process and the drilling process may be performed substantially simultaneously or in different orders.

  Moreover, in the said Example, although the process which forms the needle-shaped holes 13 and 15 was illustrated as a drilling process, it is not limited to this, For example, Fig.15 (a) (b) and FIG.16 (b) As shown, the slit-shaped holes 31, 32, 33 may be formed. In this case, a plate-like slide blade is usually used instead of the slide needle 26a. Moreover, in the said Example, although the process which forms the several holes 13 and 15 was illustrated as a drilling process, it is not limited to this, For example, as shown in FIG.15 (b), it is a single continuous The holes 32 may be formed.

  Moreover, in the said Example, although the process which cools the molten resin b supplied to the holes 13 and 15 actively by the cooling mechanism 28 was illustrated as a cooling process, it is not limited to this, For example, the holes 13 and 15 The molten resin b supplied to the substrate may be naturally cooled or cooled by cooling fins.

  Moreover, in the said Example, although the process which raises / lowers the injection molding apparatus 22 with respect to the ceiling base material 2 on the mounting base 21 was illustrated as an installation process and a mold release process, it is not limited to this, For example, a fixed state The interior base material 2 may be moved closer to or away from the injection molding apparatus 22.

  Moreover, in the said Example, although the injection molding apparatus 22 was raised / lowered with the drive cylinder 23a, it is not limited to this, For example, the injection molding apparatus 22 is raised / lowered with a drive motor, or the robot hand 35 (refer FIG. 17). ).

  In the above embodiment, the slide needle 26a is slid by the drive cylinder 26b. However, the present invention is not limited to this. For example, the slide needle 26a is slid by the drive motor, and the vertical movement of the injection molding device 22 is powered. You may make it slide by transmitting. Moreover, in the said Example, although molten resin b was supplied in the cavity 25a with the plunger 27d, it is not limited to this, For example, you may supply the molten resin b in the cavity 25a with a screw.

  Moreover, in the said Example, the shaping | molding die 25 of the injection molding apparatus 22 can be comprised including a main mold | type and 1 or 2 or more slide mold | types provided so that a slide with respect to a main mold is possible, for example. . Thereby, another part with a more complicated shape can be formed.

  Moreover, in the said Example, although the ceiling material 1 was illustrated as a vehicle interior material, it is not limited to this, For example, you may employ | adopt a door trim, a floor carpet, a floor mat, a dash silencer etc. Moreover, in the said Example, although the clip seat 3 and the side clip 4 for clip-fixing on the vehicle side were illustrated as another components, it is not limited to this, For example, you may employ | adopt various functional components.

  Moreover, in the said Example, although the ceiling material 1 for vehicles formed by forming the clip seat 3 and the side clip 4 in the surface which faces a vehicle interior outer side in the state installed in the vehicle, illustrated in this, For example, the interior base material may be a vehicle interior material in which another part is formed on a surface (that is, a design surface) facing the vehicle interior side in a state of being installed in the vehicle.

  Moreover, in the said Example, although the thing by which the several holes 13 and 15 were punctured and arranged by the substantially equal interval as the interior material for vehicles was illustrated in the ceiling base material 2, it is not limited to this, For example, You may employ | adopt the thing by which the some hole was drilled by the interior base material at the irregular intervals.

  Moreover, in the said Example, although the clip seat 3 which penetrates in the holes 13 and 15 and the one part front end side of the side clip 4 formed in the bulging shape were illustrated as an interior material for vehicles, it is limited to this. For example, you may employ | adopt what formed the front end side of a part of another component which enters in a hole in the shape of a taper.

  Moreover, in the said Example, although what provided the fiber layer 6 with which the sheet | seat layer 7 for ventilation prevention is laminated | stacked was illustrated as the ceiling base material 2, it is not limited to this, For example, instead of the fiber layer 6, a foaming layer You may employ | adopt what comprises. Furthermore, in the said Example, although what laminated | stacked the antiskid layer 8 on the surface of the sheet layer 7 for ventilation prevention was illustrated, it is not limited to this, For example, the sheet layer 7 for ventilation prevention is stopped by stopping the antiskid layer 8 May be used which is exposed on the surface.

  Moreover, in the said Example, although the junction part 3b extended in planar shape from the outer peripheral side of the seat part main body 3a was illustrated, it is not limited to this, For example, as shown to Fig.15 (a) (b), a seat part It is good also as the junction part 3b extended radially from the outer peripheral side of the main body 3a. Furthermore, in the said Example, although the clip seat 3 provided with the seat part main body 3a and the junction part 3b was illustrated, it is not limited to this, For example, as shown in FIG.15 (c), without providing the junction part 3b. It is good also as clip seat 3 'which consists only of the seat part main body 3a. Moreover, in the said Example, although the side clip 4 which consists only of the clip main body 4a was illustrated, it is not limited to this, For example, as shown to Fig.16 (a), the outer periphery of this clip main body 4a It is good also as side clip 4 'provided with the some junction part 4b extended outward from the side.

  The foregoing examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than limiting. As detailed herein, changes may be made in its form within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials and examples have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosure herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope.

  The present invention is not limited to the embodiments described in detail above, and various modifications or changes can be made within the scope of the claims of the present invention.

  It is widely used as a technique for manufacturing a vehicle interior material in which another part is formed on the surface of the interior substrate by injection molding.

  DESCRIPTION OF SYMBOLS 1; Vehicle ceiling material, 2; Ceiling base material, 3; Clip seat, 4; Side clip, 7; Ventilation sheet layer, 13, 15; Hole, 22; Injection molding apparatus, 25a; Installation mechanism, 26a; slide needle, 27; molten resin supply mechanism.

Claims (3)

A method for manufacturing an interior material for a vehicle in which another part is formed on the surface of the interior base material by injection molding,
On the surface side of the interior base material, a non-breathable air-proof sheet layer is provided,
An installation step of installing an injection molding apparatus with respect to a range in which the separate part of the surface of the interior base material is formed;
A drilling step of drilling a hole through the ventilation stopper sheet layer from the surface of the interior base material by the injection molding device;
A molten resin supply step of supplying molten resin into the hole by the injection molding device;
A cooling step for cooling the molten resin supplied into the holes;
A demolding step of removing the injection molding device from the surface of the interior base material ,
The method of manufacturing an interior material for a vehicle , wherein the drilling step is a step of drilling the hole with a slide needle or a slide blade provided in a cavity of the injection molding apparatus . The interior base material includes a fiber layer, and the air-proof sheet layer laminated on the surface of the fiber layer,
2. The vehicle-use vehicle according to claim 1, wherein the perforating step is a step of perforating the hole reaching the fiber layer from the surface of the interior base material through the air blocking sheet layer by the injection molding device. Manufacturing method of interior material. An injection molding apparatus for forming another part by injection molding on the surface of an interior base material,
On the surface side of the interior base material, a non-breathable air-proof sheet layer is provided,
A drilling mechanism that drills a hole through the air-proofing sheet layer from the surface of the interior base material;
A molten resin supply mechanism for supplying a molten resin into the cavity of the injection molding apparatus including the hole drilled by the drilling mechanism ,
2. The injection molding apparatus according to claim 1, wherein the punching mechanism includes a slide needle or a slide blade provided in a cavity of the injection molding apparatus, and a drive source for slidingly driving the slide needle or the slide blade .

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