KR101409511B1

KR101409511B1 - School Desk and Method of Manufacturing the Same

Info

Publication number: KR101409511B1
Application number: KR1020140037440A
Authority: KR
Inventors: 박침곤
Original assignee: 우진교구산업(주)
Priority date: 2014-03-31
Filing date: 2014-03-31
Publication date: 2014-06-19

Abstract

The present invention relates to a school desk having tempered glass and a method for manufacturing the same. More specifically, when performing an injection molding of borders of a top plate of a desk, a buffering plate is attached to the bottom side of a top mold, coming in contact with the tempered glass, and a prevention film for preventing an injection liquid is attached to four end portions of the top plate, so that the tempered glass plate can be prevented from shattering and, the injection liquid can be prevented from smearing into a space between the tempered glass plate and a veneering. The borders of the school desk cover a substrate and the tempered glass plate to be integrated with the substrate and tempered glass, thus preventing the top plate from being stacked with dust, smeared with water, and stained when used for a long time since a gap between the top plate and the borders does not exist.

Description

Technical Field [0001] The present invention relates to a tempered glass school desk and a manufacturing method thereof,

The present invention relates to a reinforced glass school desk and a method of manufacturing the same. More particularly, the present invention relates to a reinforced glass school desk and a method of manufacturing the same. More particularly, It is possible to prevent the injection of the injection liquid between the tempered glass plate and the veneer plate without breaking the tempered glass plate by attaching the liquid penetration preventing film and the corrugation is formed integrally with the substrate and the tempered glass plate, The present invention relates to a tempered glass school desk and a method of manufacturing the same.

For a long time, the top plate of the school desk has been using plywood, but the top plate is dirty with all kinds of graffiti and knives of the students. Therefore, in the utility model registration No. 20-0388241, the tempered glass plate is attached on the soiled desk top plate, Is proposed.

In addition, in the registered utility model No. 20-0340145, a desk having a small hole formed in a tempered glass plate and a long bolt penetrating through a tempered glass plate and a plywood plate to connect to a column pipe supporting the desk top plate is proposed However, when the desk is tilted to the front or back or to the left or right, the impact of the impact on the floor of the concrete classroom leads to the disadvantage that the side of the reinforced glass plate falls into a small piece of glass.

The tempered glass school desk is repeatedly torn down during the cleaning process and during the course of the students' jokes, so that a small number of small protuberances are formed on the smooth tempered glass plate side, making it unsightly and harmful to students.

In order to secure such a disadvantage, Applicant has proposed the MDF as shown in the registration design of No. 30-0593678. PB plate or plywood is cut to fit the tempered glass school desk standard (KSG 2010), and a nut that connects to the desk column pipe on the underside is planted. Injection-molded edges of 5 ~ 10mm width are made on the top side of the desk top plate. We have been supplying tempered glass school desks with a 5mm thick tempered glass plate for 6 years to the national schools for more than 6 years. However, the gap between the tempered glass plate and the top edge of each side And the water was soaking in the case of cleaning, etc., and a disadvantage that the desk top which should be clean was dirty and uncomfortable appeared.

In order to improve this point, the patented invention of the present applicant No. 10-1090579 was attempted, but there was no economical efficiency for two reasons. In the injection molding process of the frame, the glass plate in the mold is broken by 40-50%, and due to the injection pressure, the injection liquid penetrates between the transparent glass plate and the lower plate, thereby damaging the color plates of various colors and patterns. So that the top surface of the desk becomes dirty.

KR 20-0340145 B (Desk with a tempered glass top surface) Jan. 31, 2004 KR 20-0388241 B (tempered glass desk structure) June 29, 2005 KR 10-2008-0091698 A (Joining structure and manufacturing method of student desk top plate with tempered glass) 2008.10.14. KR 30-0593678 B (desk) March 28, 2011. KR 10-1090579 B (Manufacturing method of student desk) Dec 08, 2011

In order to solve the above problems, the present invention provides a tempered glass school desk in which an injection liquid does not permeate between tempered glass plates and a tempered glass plate at the time of tandem injection molding of a desk top plate, The purpose is to provide.

In order to accomplish the above object, the present invention provides a method of manufacturing an upper plate, in which a substrate, an encapsulating plate, an adhesive layer, and a tempered glass plate are sequentially laminated to form a laminate, and the laminate is placed in a mold composed of a lower mold and an upper mold A method of manufacturing a tempered glass school desk for forming a thick rim of an elastic body on the rim of the laminate by injection molding, the method comprising the steps of: forming an injection liquid infiltration preventing film which surrounds the ends of the four sides of the laminate at the ends of the four sides of the laminate; The laminate is placed in the lower mold and a buffer plate is attached to the lower surface of the upper mold contacting the tempered glass plate to cover the upper mold and injection molding to form a rim of a thick elastic body to surround the laminate, Manufacture glass school desks.

The present invention is characterized in that when injection molding of a desk top plate is carried out, injection liquid immersion prevention films are attached to the end portions of the reinforced glass plate, adhesive layer, Since there is no gap between the top plate and the back of the desk because the backing is formed integrally with the substrate and the tempered glass plate by wrapping the substrate and the tempered glass plate without the liquid penetrating, the dust accumulates on the edge of the top plate, The edge of the top plate is not dirty.

In addition, since the buffer plate is attached to the lower surface of the upper mold, the reinforced glass plate is not damaged at the time of injection molding of the thick elastic base of the desk top plate.

1 is a sectional view of a conventional desk top plate,
2 is a sectional view of a desk top plate of the present invention,
Figure 3 is a cross-sectional view of another embodiment of the desk top of the present invention.
4 is an exemplary view of a desk top mold according to the present invention,
5 is a perspective view of one of the desks manufactured by the present applicant.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

The present invention relates to a method for producing a laminated body (10) by sequentially laminating a substrate (5), an enamel plate (3), an adhesive layer (2) and a tempered glass plate A manufacturing method of a tempered glass school desk for forming a thick elastic body rim (4) at the edge of the laminated body (10) by injection molding into a metal mold composed of a metal mold (8) and an upper metal mold (9) An injection liquid penetration preventing film 6 surrounding the end portions of the four sides of the laminated body 10 is attached to the end portions of the four sides of the laminated body 10 and then the laminated body 10 is inserted into the lower mold 8, A buffer plate 91 is attached to the lower surface of the upper mold 9 contacting the tempered glass plate 1 and the upper mold 9 is covered and injection molded to form a rim 4 of a thick elastic body surrounding the laminate 10 ) To manufacture tempered glass school desks.

It is preferable that the substrate 5 is made of plywood, particle board (PB), fiber plywood (MDF), etc., and several nuts (7) are preliminarily planted for convenient assembly with a desk frame.

It is preferable to use a vinyl sheet mainly for the veneer sheet 3 and to prevent the color of the substrate 5 from being displayed by being opaque. In addition, it is preferable that the upper surface of the veneer sheet 3 is an elegant color, and educational texts and pictures can be inserted on the upper surface of the veneer sheet 3.

In addition, even if the tempered glass plate 1 is damaged by a severe impact because the tempered glass sheet 3 is strongly adhered to the tempered glass plate 1 by the adhesive layer 2, scattering of the glass fragments is prevented like a safety glass of an automobile Thereby preventing damage to the human body. A strong and transparent adhesive is used as the adhesive for the adhesive layer 2. Instead of the adhesive layer 2, a decorative sheet 3 previously coated with an adhesive may be used.

Heat-resistant tapes and heat-resistant plasters can be used as the injection liquid infiltration preventing film 6. The injection liquid infiltration preventing film 6 is formed on the side faces of the reinforced glass plate 1, the adhesive layer 2, the curled plate 3 and the substrate 5 When the extrusion liquid permeation preventing film 6 is firmly attached so as to surround the marginal end portions of the tempered glass plate 1, the adhesive layer 2, the curled plate 3 and the substrate 5, The injection liquid can not penetrate into the gap between the tempered glass plate 1 and the screen.

3, the length and width of the tempered glass plate 1 and the curled sheet 3 may be made shorter than the length and width of the substrate 5. In such a case, It may be attached along the end portions of the glass plate 1, the curled plate 3, and the substrate 5.

As the buffer plate 91, a thick rubber plate or plastic plate is used. The metal mold used for injection molding of the rim 4 of the thick elastic body of the laminate 10 to be the upper plate of the desk is composed of the lower mold 8 and the upper mold 9 and is made of a heavy and hard metal, The reinforcing glass plate 1 abutting on the upper mold 9 may be broken. Therefore, the buffer plate 91 is attached to the lower surface of the upper mold 9.

A thick rubber plate or a plastic plate is attached to the lower surface of the upper mold 9 as a buffer plate 91 to impart a buffering force to the upper mold 9. Rubber or plastics plates should be able to withstand the injection temperature and pressure. It is also possible to improve the buffering force of the upper mold 9 by inserting a buffer such as a spring between the upper mold 9 and the buffer plate 91.

Next, a manufacturing method of the upper plate of the tempered glass school desk of the present invention will be described in detail. First, the substrate 5, the tempering plate 3, the tempered glass plate 1 and the adhesive are prepared with the size of the desk top plate to be manufactured, and the substrate 5, the roughing plate 3, the adhesive layer 2, And the glass plate 1 are laminated in this order to form the laminate 10. [

Subsequently, the injection liquid infiltration preventive film 6 was placed on the side of the four sides of the laminated body 10 of the tempered glass plate 1, the adhesive layer 2, the curled plate 3 and the substrate 5, 1, the adhesive layer 2, the veneer sheet 3, and the substrate 5 laminate body 10. [0050] As shown in Fig.

Next, the lower mold 8 and the upper mold 9 are prepared considering the size of the laminate 10 and the width of the rim to be formed, and the buffer plate 91 is attached to the lower surface of the upper mold 9.

Subsequently, the laminated body 10 wrapping the edge of the marginal portion with the injection liquid permeation preventing film 6 is placed in the lower mold 8, the upper mold 9 having the buffer plate 91 attached thereto on the lower surface thereof is covered with a urethane resin A resin such as a synthetic resin such as polyvinyl chloride, plastic or the like is press-formed to form a thickened elastic body 4 around the laminate 10. [

In addition, since the buffer plate is attached to the lower surface of the upper mold, the reinforced glass plate is not broken at the time of injection molding of the thick elastic base of the desk top plate.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but on the contrary, the invention is not limited thereto.

Further, the reference numerals used in the description of the present invention and the description of utility model registration claims in parentheses are used for ease of understanding of the present invention, and the present invention is not limited to the figures No.

1: tempered glass plate 2: adhesive layer
3: Cirrus 4: Tari
5: substrate 6: injection liquid infiltration preventing film
7: Nut 8: Lower mold
9: upper mold 91: buffer plate
10:

Claims

The laminate 10 is formed by sequentially laminating the substrate 5, the laminating film 3, the adhesive layer 2 and the tempered glass plate 1, (9), and injection-molding the same to form a thickened elastic body rim (4) at the edge of the laminated body (10), the method comprising the steps of:
After the injection liquid impermeable barrier film 6 for covering the edges of the four sides of the laminate 10 is attached to the ends of the four sides of the laminate 10,
The laminate 10 is placed in the lower mold 8,
A buffer plate 91 is attached to the lower surface of the upper mold 9 contacting the tempered glass plate 1,
The upper mold 9 is covered and injection molded,
Characterized in that a rim (4) of a thick elastic body surrounding the periphery of the laminate (10) is formed

The method according to claim 1,
When attaching the buffer plate 91 to the lower surface of the upper mold 9 contacting the tempered glass plate 1,
A spring is inserted between the lower surface of the upper mold 9 and the buffer plate 91,
And the buffering force of the upper mold (9) is improved.

The upper plate is composed of a laminate 10 in which a substrate 5, a veneer sheet 3, an adhesive layer 2 and a tempered glass plate 1 are laminated in order, and a rim of a thick elastic material surrounding the laminate 10 (4) in a reinforced glass school desk,
Characterized in that an injection liquid infiltration preventing film (6) is attached inside the rim (4) of the thick elastic body to wrap the ends of the four sides of the laminate (10)