JP6854185B2 - Decorative case manufacturing method and decorative case - Google Patents

Description

The present invention relates to a method for manufacturing a decorative case and a decorative case.

For example, there is a decorative case having a decorated upper case and a decorated lower case (see, for example, Patent Document 1). The decorative case of Patent Document 1 is an eyeglass case.

Japanese Unexamined Patent Publication No. 08-118409

However, in the decorative case of Patent Document 1, a dividing line is formed at the mating portion between the decorated upper case and the decorated lower case. As a result, the mating part did not look good.

Therefore, the main object of the present invention is to solve the above-mentioned problems.

In order to solve the above problems, the present invention relates to a method for manufacturing a decorative case, which manufactures a decorative case having a decorated upper case portion and a decorated lower case portion.
The laminating process of making a laminated sheet by integrally laminating the skin sheet and the base sheet,
A shaping step of shaping the laminated sheet into a shape in which the upper case portion and the lower case portion are opened and connected.
A case molding step of integrally molding a resin layer constituting an upper case portion and a lower case portion on the inner surface of the shaped laminated sheet.
A connecting partial cutting step of cutting the base material sheet located at the connecting portion between the upper case portion and the lower case portion, and a connecting partial cutting step.
It is characterized in that an inward bending step of inwardly bending the upper case portion and the lower case portion in a closing direction with the skin sheet of the connecting portion as a center is performed in order.

Further, the present invention relates to a decorative case having a decorated upper case portion and a decorated lower case portion.
The upper case portion and the lower case portion are each integrated with a laminated sheet formed by laminating a skin sheet and a base material sheet on the outer surface of the resin layer.
One side surface of the upper case portion and the lower case portion is connected by the skin sheet, and is also connected.
The inside of the portion connected by the skin sheet is characterized in that the case side portion is fitted without having the base sheet and the resin layer.

According to the present invention, the appearance of the combined portion of the upper case and the lower case can be improved by the above configuration.

It is an overall perspective view of the electronic key which has the decorative case which concerns on this embodiment. Of these, (a) is a perspective view in which the decorative case is arranged in a U shape that opens to the left, and (b) is a perspective view in which the decorative case is arranged in a U shape that opens to the right. It is a figure which shows the laminating process which concerns on the manufacturing method of the decorative case of FIG. 1, and is the figure which shows the state before bonding the skin sheet and the base material sheet. It is a figure which shows the state which laminated the skin sheet and the base material sheet in the laminating process to form a laminated sheet. It is a figure which shows the shaping process. It is a figure which shows the state which cuts and removes the part outside the product of the laminated sheet shaped in the shaping process. It is a figure which shows the case molding process. It is a figure which shows the connection partial excision process. It is a figure which shows the side part fitting process and the inward bending process. It is a figure which shows the upper case part and the lower case part which were inwardly bent by the inward bending process. It is a figure which shows the state which injection-molded the case side part. It is a figure which shows the case side part which was injection-molded in FIG. It is a figure which shows a specific decorative case. Of these, (a) is a perspective view in which the decorative case is arranged in a U shape that opens to the right, (b) is a plan view of (a), and (c) is an end view of (a). A perspective view in which the same decorative case as in FIG. 12 is arranged in a U shape to be opened on the left side, (b) is a plan view of (a), and (c) is an end view of (a). It is a figure which shows the state which opened the decorative case of FIG. Of these, (a) is a plan view showing the inner surface side of the decorative case, (b) is a view showing the end surface of the decorative case, and (c) is a plan view showing the outer surface side of the decorative case. It is a perspective view which made the decorative case of FIG. 14 in the same direction as FIG. 12 (a). Of these, (a) is a diagram showing a state before the case side portion is attached to the decorative case in the open state. (B) is a figure which shows the state after attaching the case side part. It is a perspective view which made the decorative case of FIG. 14 in the same direction as FIG. 13 (a). Of these, (a) is a diagram showing a state before the case side portion is attached to the decorative case in the open state. (B) is a figure which shows the state after attaching the case side part.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 16 are for explaining this embodiment.

<Structure> The configuration of this embodiment will be described below.

For example, in a vehicle such as an automobile, there is an electronic key for remotely controlling the on / off of the door lock and the opening / closing of the door itself. Such an electronic key contains a circuit board or the like for controlling the opening and closing of a door in a small case. Then, such a small case is made into a decorative case decorated with genuine leather or synthetic leather. However, the decorative case according to this embodiment can be used in addition to the electronic key case.

Hereinafter, the configuration of this embodiment will be described.

[Manufacturing method of decorative case]
A method of manufacturing the decorative case 1 as shown in FIG. 1 will be described. In this method of manufacturing the decorative case 1, the decorative case 1 having the decorated upper case portion 2 and the decorated lower case portion 3 is manufactured.

(1) First, as shown in FIG. 2, a laminating step is performed in which the skin sheet 4 and the base sheet 5 are integrally bonded to form a laminated sheet 6 as shown in FIG.
Next, as shown in FIGS. 4 and 5, a shaping step of shaping the laminated sheet 6 into a shape in which the upper case portion 2 and the lower case portion 3 are opened and connected is performed.
Then, as shown in FIG. 6, a case molding step is performed in which the resin layer 7 constituting the upper case portion 2 and the lower case portion 3 is integrally molded on the inner surface of the shaped laminated sheet 6.
Further, as shown in FIG. 7, a connecting partial cutting step of cutting the base material sheet 5 located at the connecting portion 8 between the upper case portion 2 and the lower case portion 3 is performed.
Finally, as shown in FIGS. 8 and 9, an inward bending step of inwardly bending the upper case portion 2 and the lower case portion 3 in the closing direction is performed centering on the skin sheet 4 of the connecting portion 8.

Here, the upper case portion 2 and the lower case portion 3 are portions that form the upper surface and the lower surface of the decorative case 1, respectively. The upper case portion 2 and the lower case portion 3 are integrally made in a state where one side portion is connected so that there is no dividing line. The upper case portion 2 and the lower case portion 3 may have the same shape or may have different shapes.

For the skin sheet 4, various materials such as genuine leather, synthetic leather, and a decorative film can be used.

The base sheet 5 is for lining and protecting the skin sheet 4 and for ensuring the adhesiveness with the resin layer 7 in the subsequent process. The base sheet 5 is made of a material similar to that of the resin layer 7. In this case, the base sheet 5 is a hard polycarbonate sheet. If the shaping step, the case molding step, or the like described above is performed without attaching the base sheet 5 to the skin sheet 4, problems such as wrinkles or streaks may occur on the skin sheet 4.

For the laminating step, for example, a crimping device provided with a pair of rollers can be used. In the crimping device, the skin sheet 4 and the base sheet 5 are passed between a pair of rollers with an adhesive layer interposed therebetween, so that the skin sheet 4 and the base sheet 5 are crimped to each other and the laminated sheet 6 is formed. To. The laminated sheet 6 is used as a decorative sheet for decorating the decorative case 1.

A vacuum forming apparatus 11 as shown in FIG. 4 can be used in the shaping step. In the vacuum forming apparatus 11, the laminated sheet 6 softened by heating with a heater is vacuum-adsorbed to the vacuum forming mold 12 (vacuum male mold or vacuum female mold) to shape the laminated sheet 6 into a required shape. The vacuum forming mold 12 has a vacuum hole 14 for performing vacuum suction using the vacuum pump 13. In the shaping step, the base sheet 5 of the laminated sheet 6 may be provided with a mark 15 for cutting the connecting portion 8 in the connecting partial cutting step. Therefore, the vacuum forming mold 12 is provided with a protrusion 16 for marking the mark 15.

As shown in FIG. 5, the shaped laminated sheet 6 is independently added by cutting and removing a portion 17 outside the product on the outer peripheral side with a cutting tool 18 such as a cutter when the vacuum forming mold 12 is removed from the mold. The decorative part 19 is used.

For the case molding step, for example, an injection molding apparatus 21 as shown in FIG. 6 can be used. In the injection molding apparatus 21, the shaped laminated sheet 6 (decorative part 19) is set in a pair of male and female molding molds 22 and 23 (female molds) in a molding space inside the molding molds 22 and 23. By injecting the molten resin 25, the resin layer 7 constituting the upper case portion 2 and the lower case portion 3 is integrally molded on the inner surface side of the laminated sheet 6. At this time, it is preferable not to form the resin layer 7 on the inner surface side of the connecting portion 8. For that purpose, the molten resin 25 is separately injected into the upper case portion 2 and the lower case portion 3.

For example, as shown in FIG. 7, a cutting tool 26 such as a hot blade, an ultrasonic cutter, or a laser cutter can be used in the connecting partial cutting step. At this time, the cutting tool 26 cuts a hard portion such as the base material sheet 5 along the shape of the connecting portion 8 by targeting the mark 15. If the resin layer 7 is not formed on the inner surface of the connecting portion 8, it is not necessary to cut the resin layer 7, so that the processing becomes easy.

For the inward bending step, for example, a three-dimensional processing machine in which a clamp device (or a gripping device) is attached to an articulated arm, a three-dimensional moving table, or the like can be used. In the three-dimensional processing machine, while the upper case portion 2 and the lower case portion 3 are gripped by the clamp device, the upper case portion 2 and the lower case portion 3 are closed centering on the skin sheet 4 of the connecting portion 8 from which the hard portion is cut off. Bend inward. The upper case portion 2 and the lower case portion 3 have a gap portion 27 substantially equal to the width of the connecting portion 8 and are bent until they are separated from each other. The internal bending step may be performed manually.

By performing the above steps in order, the upper case portion 2 and the lower case portion 3 are in a substantially U-shaped end face view in which one side portion is connected by the skin sheet 4. The inside of the upper case portion 2 and the lower case portion 3 connected in a U shape has a required internal space. When used as a case for an electronic key, a door is formed in a gap 27 between the U-shaped upper case portion 2 and the lower case portion 3 connected by the skin sheet 4 from the other side or the end side. The electronic key is completed by mounting the switch case 28 (see FIG. 1) containing a circuit board for controlling the opening and closing of the door so as to sandwich it.

(2) In the above, as shown in FIG. 8, the side portion fitting step of fitting the case side portion 31 into the connecting portion 8 from which the base sheet 5 has been removed in the connecting partial cutting step of FIG. 7 may be performed. good.

Here, the case side portion 31 is a hard portion constituting one side surface of the decorative case 1. The side portion fitting step is a step of reinforcing the connecting portion 8 which is only the soft skin sheet 4 in the connecting partial cutting step by the case side portion 31.

As shown in FIGS. 10 and 11, the case side portion 31 may be fitted with a separately injection-molded member (case side member 32). In this case, the case side member 32 is of the same type as the resin layer 7 constituting the upper case portion 2 and the lower case portion 3 in the molding space of the injection molding apparatus 21 to which the dedicated molding molds 33 and 34 for the case side member 32 are attached. Injection molding is performed by injecting the molten resin 25 of.

When the case side portion 31 (case side member 32) configured as a separate component is used, for example, the case side member 32 can be held in a state of being fitted between the upper case portion 2 and the lower case portion 3. The side portion fitting step is performed between the connecting partial cutting step and the inward bending step.

Alternatively, the case side portion 31 can be integrally molded with either the upper case portion 2 or the lower case portion 3 in the case molding step. When the case side portion 31 is integrally molded in either the upper case portion 2 or the lower case portion 3, the case side portion 31 enters the connecting portion 8 as it is by performing the inward bending in the inward bending step. Become.

[About decoration case 1]
Next, the decorative case 1 manufactured by the method for manufacturing the decorative case 1 will be described with reference to FIGS. 9 and 12 to 16. The decorative case 1 has a decorated upper case portion 2 and a decorated lower case portion 3.

(3) As shown in FIG. 9, the upper case portion 2 and the lower case portion 3 integrate a laminated sheet 6 formed by laminating a skin sheet 4 and a base sheet 5 on the outer surface of the resin layer 7, respectively. It has become.
One side surface of the upper case portion 2 and the lower case portion 3 is connected by a skin sheet 4.
The inside of the portion connected by the skin sheet 4 is fitted with the case side portion 31 without having the base sheet 5 and the resin layer 7.

Here, as shown in FIGS. 12 and 13, the upper case portion 2 and the lower case portion 3 are separated from each other with a gap portion 27 between the other side portions and the end portions. Then, the switch case 28 described above is inserted into this separated portion.

In the decorative case 1, the outer surfaces of the upper case portion 2 and the lower case portion 3 are three-dimensional design surfaces formed by curved lines, curved surfaces, and the like. Further, the upper case portion 2 and the lower case portion 3 have a required internal space inside. Therefore, the upper case portion 2 and the lower case portion 3 that are connected in a U shape have a shape that is difficult to mold at one time.

(4) As shown in FIGS. 14 to 16 (mainly, see FIG. 15), the outer surface of the case side portion 31 may have a curved surface shape (curved surface portion 41).

Here, the outer surface of the case side portion 31 becomes a three-dimensional design surface according to the shapes of the upper case portion 2 and the lower case portion 3. As a result, the skin sheet 4 of the connecting portion 8 is bent so as to extend into a three-dimensional shape in the connecting portion cutting step.

(5) The case side portion 31 may have a holding portion 51 that can be held against at least one of the upper case portion 2 and the lower case portion 3.

Here, in order to hold the case side portion 31 to the connecting portion 8, the case side portion 31 may be fixed to the skin sheet 4 of the connecting portion 8 or its surroundings by adhesive, but the holding portion 51 may be provided for easy use. It is preferable to have a structure that can hold it.

The holding portion 51 may be any type as long as the case side portion 31 can be held against the upper case portion 2 or the lower case portion 3, but the holding portion 51 is engaged with a hook or the like projecting from the inner surface side of the case side portion 31. It can be a stop.

On the other hand, holding ribs 52 and 53 extending along the connecting portion 8 may be erected on the upper case portion 2 and the lower case portion 3 as a held portion with respect to the holding portion 51.

In this embodiment, the upper case portion 2 and the lower case portion 3 are provided with a pair of holding ribs 52, 53 so as to be abutted against each other and become one flat surface when bent inward. However, the pair of holding ribs 52 and 53 may be slightly separated from each other. In line with this, the peripheral edge portion of the case side portion 31 has its inner surface side formed into a flat portion capable of contacting the flat surface formed by the pair of holding ribs 52 and 53 over the entire circumference.

Then, a locking portion that locks to the central portion of the holding rib 52 of the upper case portion 2 is projected as the holding portion 51 from the central portion on the inner surface side of the case side portion 31. Further, a notch 54 capable of locking and positioning the upper case portion 2 by accommodating the holding portion 51 is provided in the central portion of the holding rib 53 of the lower case portion 3.

Further, as the positioning portion, the left and right positioning pins 56 are projected from the inner surface side of the case side portion 31 toward the vicinity of both ends of the holding rib 52 of the upper case portion 2. Then, left and right pin receiving portions 55 for receiving the left and right positioning pins 56 are provided as positioning portions in the vicinity of both ends of the holding rib 52. The pin receiving portion 55 can be a notch portion, a hole portion, or the like. The structures of the holding ribs 52 and 53 may be reversed.

Further, reinforcing ribs 58 may be provided on the inner surfaces of the upper case portion 2 and the lower case portion 3. The reinforcing rib 58 is, for example, a cross rib having a plurality of rib portions parallel to the holding ribs 52 and 53 and rib portions perpendicular to the holding ribs 52 and 53 at intervals. The reinforcing rib 58 is lower than the holding ribs 52 and 53.

<Action / Effect> According to this example, the following action / effect can be obtained.

[About the action and effect of the manufacturing method of the decorative case 1]
(Action Effect 1) In the laminating step, the skin sheet 4 and the base sheet 5 are integrally laminated to form the laminated sheet 6, so that the skin sheet 4 can be lined with the base sheet 5 to protect it. Further, the base sheet 5 can ensure the adhesiveness with the resin layer 7.

In the shaping process, the laminated sheet 6 is shaped into a shape in which the upper case portion 2 and the lower case portion 3 are opened and connected to form a portion for decorating the upper case portion 2 and a portion for decorating the lower case portion 3. Can be connected and integrated.

In the case molding process, the upper case portion 2 and the lower case portion 3 are integrally formed by integrally molding the resin layer 7 constituting the upper case portion 2 and the lower case portion 3 on the inner surface of the shaped laminated sheet 6. Can be done.

By (partially) cutting the base sheet 5 located at the connecting portion 8 between the upper case portion 2 and the lower case portion 3 in the connecting partial cutting step, the integrated upper case portion 2 and the lower case portion 3 are combined. The connecting portion 8 can be separated leaving the skin sheet 4 to be easily bent.

In the inward bending step, the upper case portion 2 and the lower case portion 3 are bent inward in the direction of closing the upper case portion 2 and the lower case portion 3 centering on the skin sheet 4 of the connecting portion 8, so that the upper case portion 2 and the lower case portion 3 have a shape with good appearance quality. Can be finished.

In the decorative case 1 manufactured in this manner, the connecting portion 8 between the upper case portion 2 and the lower case portion 3 has no dividing line, and the mating portion between the upper case portion 2 and the lower case portion 3 has a surface difference. Since it is possible to suppress the occurrence of gaps and the like, it is possible to improve the appearance of the mating portion and finish the decorative case 1 with a high-class feeling.

In addition, the decorative case 1 can be mass-produced because it does not require much labor and advanced technology. Then, by laminating the base material sheet 5 on the back surface of the skin sheet 4 to form the laminated sheet 6, various materials such as genuine leather, synthetic leather, and decorative film can be used for the skin sheet 4. Because it becomes possible, it is possible to expand the variation in design.

(Action / Effect 2) In the side portion fitting step, the case side portion 31 is fitted into the connecting portion 8 from which the base material sheet 5 has been removed and attached to the skin sheet 4, so that the upper case portion 2 and the lower case portion 3 are combined. The strength of the connecting portion 8 between the side surfaces can be ensured.

[About the action and effect of decorative case 1]
(Action and Effect 3) The decoration case 1 of this embodiment can obtain the same action and effect as the manufacturing method of the decoration case 1 described above. Then, by fitting the case side portion 31 inside the portion connected by the skin sheet 4, the strength of the connecting portion 8 between one side surface of the upper case portion 2 and the lower case portion 3 can be secured.

(Action 4) By forming the outer surface of the case side portion 31 into a curved surface shape, the space between one side surface of the upper case portion 2 and the lower case portion 3 is neatly bent inward along the outer shape of the curved surface shape case side portion 31. This makes it possible to improve the appearance quality of the side surface portions of the upper case portion 2 and the lower case portion 3.

(Effect 5) Since the case side portion 31 has a holding portion 51 that can be held against at least one of the upper case portion 2 and the lower case portion 3, the case side portion 31 is fitted into the connecting portion 8. At that time, the holding portion 51 can hook the case side portion 31 to at least one of the upper case portion 2 and the lower case portion 3 to securely hold the case side portion 31. Therefore, the positioning and mounting of the case side portion 31 can be facilitated, and an error-free assembled state can be obtained.

1 Decorative case 2 Upper case part 3 Lower case part 4 Skin sheet 5 Base sheet 6 Laminated sheet 7 Resin layer 8 Connecting part 31 Case side part 51 Holding part

Claims (5)

In a method for manufacturing a decorative case, which manufactures a decorative case having a decorated upper case portion and a decorated lower case portion.
The laminating process of making a laminated sheet by integrally laminating the skin sheet and the base sheet,
A shaping step of shaping the laminated sheet into a shape in which the upper case portion and the lower case portion are opened and connected.
A case molding step of integrally molding a resin layer constituting an upper case portion and a lower case portion on the inner surface of the shaped laminated sheet.
A connecting partial cutting step of cutting the base material sheet located at the connecting portion between the upper case portion and the lower case portion, and a connecting partial cutting step.
A method for manufacturing a decorative case, which comprises sequentially performing an inward bending step of inwardly bending the upper case portion and the lower case portion in a closing direction around the skin sheet of the connecting portion. In the method for manufacturing a decorative case according to claim 1,
A method for manufacturing a decorative case, which comprises performing a side portion fitting step of fitting a case side portion into a connecting portion from which the base material sheet has been removed in the connecting partial cutting step. In a decorative case having a decorated upper case portion and a decorated lower case portion,
The upper case portion and the lower case portion are each integrated with a laminated sheet formed by laminating a skin sheet and a base material sheet on the outer surface of the resin layer.
One side surface of the upper case portion and the lower case portion is connected by the skin sheet, and is also connected.
A decorative case characterized in that a case side portion is fitted inside a portion connected by the skin sheet without having the base material sheet and the resin layer. In the decorative case according to claim 3,
The case side portion is a decorative case characterized in that the outer surface has a curved surface shape. In the decorative case according to claim 3 or 4.
A decorative case, wherein the case side portion has a holding portion that can be held against at least one of the upper case portion and the lower case portion.

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