JP2774644B2 - Manufacturing method of vanity cabinet - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a vanity cabinet in which a mirror, a lighting device, and the like are incorporated and set on an upper part of a vanity table.

<Conventional Technology> As shown in FIG. 3, there is a conventional vanity cabinet which is formed by vacuum molding with an aluminum mold or a resin mold using a synthetic resin sheet. In other words, a vanity cabinet
In the center of the front of 1a, a hidden shelf 5 on which a mirror plate 7 is pivotally mounted.
And accessory shelves 2 and 2 on both sides thereof for accommodating accessories, and mounting recesses 3 for mounting lighting bulbs and lamps 3 'formed on the accessory shelves 2, 2 and one side thereof. 9-minute recess for mounting the toothbrush stand 9 at the lower part of the accessory rack 2 and a recess for mounting the switch outlet 10 and the cover 12 respectively.
10 ′, etc., and the holding groove 6 for the plug cord 11
Recess. A mounting angle 13 made of a synthetic resin is mounted on the inner edge of the back opening of the cabinet 1a, and a back plate 14 is applied to the mounting angle 13 so as to be fixed and held.

Further, as shown in FIG. 5, an opening 7 'for mounting the end plate 7 is formed at the center of the front surface by injection molding using a split mold, and both sides and the lower part are projected forward to form the end opening 7' for the end plate. A mounting portion for an illumination lamp 8 is provided between the upper and lower projecting portions, and an accessory shelf opening 2 'is further provided at the both projecting portions. The cabinet 1b is formed by integrally forming the recesses 9 ', 10' for mounting the outlet cover 12 and the holding groove 6 of the plug cord 11, respectively. Separately from the molding of the cabinet 1b, the accessory shelf member 2a is bonded to the inside of the accessory shelf member 2a on the back side of the accessory shelf opening 2 'by the respective surfaces 2'a and 2 "a (here, the accessory shelf member member 2a). Although the case where the cabinet 2a and the cabinet 1b are separately formed is shown, it is also possible to integrally form both of them.) Then, the mirror plate 7 is addressed to the rear side of the mirror plate mounting opening 7 ', and the rear surface is In some cases, the plates 14 are stacked, and are restrained and held by resin angles 13, 13... At the rear inner edge of the cabinet 1b.

<Problem to be solved by the invention> However, in the former conventional example, the cabinet 1a
The shape of the mold that forms the small shelves 2 and 2 and the hidden shelf 5 protrude forward high. Therefore, in the case of vacuum forming, the resin sheet heated in advance has the above-mentioned chevron bulge 1 protruding high forward. In the state of contact with the top surface 1 "of the ', the material is sucked from the back side, and as shown in FIG. In a deep part, the fabric tends to stretch and become thinner, and as a result, there is no tension, sufficient rigidity cannot be obtained, and a very weak feeling cannot be avoided.

Also, in the latter conventional example, if the top surface width of the protruding portions a, a... Of the cabinet becomes too narrow because of injection molding, the portion of the molding die corresponding to the protruding portion is inclined by the injection pressure during molding, Or, in extreme cases, it falls down, so the width of the protruding parts a, a ... is limited, and
In order to obtain sufficient strength, the size increases,
The burden on the structure of the mold, that is, the draft or undercut, increases, and many difficulties arise in the integral molding. In addition, as a whole, sufficient rigidity cannot be obtained as in the former conventional example, and the cost of the molding die is reduced. There are drawbacks such as a large burden, a long delivery time of the mold, and difficulty in planning a product.

In view of the above, the present invention has been made to solve the above-mentioned drawbacks of the conventional example and to provide a method of manufacturing a cabinet in which the thickness of the resin material constituting the cabinet is substantially equal in any part and can be easily manufactured. is there.

<Means for solving the problem> Using two mating dies having the same or symmetrical mold surfaces, blow molding or rotational molding is used to form a hollow,
A method of manufacturing a cabinet in which two washroom cabinets are obtained by dividing the center surface after release from the center surface.

<Operation> The cabinet is formed by two mating dies having the same or symmetrical shape and holding the molding material in the cavity and blowing compressed air or rotating the mating dies.

<Example> Hereinafter, the present invention will be described in detail with reference to an example shown in the drawings. First, as shown in FIG. 1, a front part corresponds to a lamp mounting recess, a accessory shelf, and various other holding parts and the like. The two molds A and A 'having the mold surfaces to be opposed to each other, that is, in the illustrated example, the mold surfaces formed on the respective molds A and A' are arranged in the opposite directions in a point-symmetric state, The mold is not limited to such a mating mold, and may be a mold having a mold surface having the same shape on the left and right with respect to the parting line 4.

Then, the two mating dies A and A 'are tightly joined to each other, and then the softened parison is sealed in the molding cavity formed between the two mating dies, and compressed air is blown from the parison gate to form the mating dies. A two-piece cabinet 1, 1 having a lamp mounting recess 3, an accessory shelf 2, and other necessary holding portions is formed in series according to the mold surface of A, A '.

This is taken out from between the double molds A and A 'and is divided into two cabinets 1, 1 by dividing the parting line 4 by a constant width 1 as shown in FIG.

<Effect of the Invention> In the present invention, two decorative cabinets are hollow-molded by a blow molding method or a rotational molding method in the cavity formed by the split mold as described above. Even when there is a bulged portion protruding high in the form of a dike, there is no significant difference in thickness between the top surface and the base portion, and substantially sufficient strength can be exhibited.

In addition, by using a two-piece mold, the "burr" generated on the mating surface of the mold usually coincides with the parting surface of the mold to be divided into two parts. By dividing the part except for the width, unsightly dylan processing caused by blow molding or the like can be cut at the same time as the division, so that workability is very good.

The hollow molding facilitates embossing and patterning of the surface, which cannot be performed by vacuum molding, and significantly improves the decorativeness on the surface.

In the case of blow molding or rotational molding, the pressure during molding can be low, and in combination with this, high strength is not required for the molding die. It is a valuable utility invention with many excellent effects.

[Brief description of the drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a vertical sectional side view of a molding die, FIG. 2 is a vertical sectional view of a released intermediate product, and FIGS. Fig. 3 is an exploded perspective view of a cabinet formed by vacuum molding, Fig. 4 is a partially enlarged sectional view showing a defect in molding, and Fig. 5 is an exploded perspective view of a cabinet formed by injection molding. is there. A, A '… Mating type, 4… Parting line

Claims (1)

(57) [Claims] 1. A two-piece decorative cabinet is hollow-formed by blow molding or rotational molding using two mating dies having the same or symmetrical mold surface. A method for manufacturing a vanity cabinet, wherein two molded vanity cabinets are obtained at the same time by separating a molded article from a center plane after releasing from a mold.