KR102228946B1 - Manufacturing method of portable heating chair using 3d and 2d printing process and heating chair therof - Google Patents

Abstract

The present invention relates to a manufacturing method of a portable heating chair using 3D and 2D printing methods, and to a heating chair manufactured thereby, which is to simplify a manufacturing process, improve productivity, and reduce manufacturing costs. To this end, the manufacturing method of a portable heating chair of the present invention comprises: a first step of manufacturing each part of the portable heating chair using the 3D printing method; a second step of printing a heating pattern through the 2D printing method on a 3D curved surface of the seat and back of the portable heating chair; and a third step of assembling the parts of the portable heating chair.

Description

Manufacturing method of portable heating chair using 3D and 2D printing method, and heating chair manufactured thereby {MANUFACTURING METHOD OF PORTABLE HEATING CHAIR USING 3D AND 2D PRINTING PROCESS AND HEATING CHAIR THEROF}

The present invention relates to a method of manufacturing a portable heating chair using a 3D and 2D printing method, and to a heating chair manufactured thereby, and more particularly, in manufacturing a portable heating chair, various parts are at once through a 3D printing method. The present invention relates to a method of manufacturing a portable heating chair in which a manufacturing process is simplified, productivity is improved, and manufacturing cost is reduced by manufacturing and printing a heating pattern on a 3D curved surface of a specific part in a 2D method, and a heating chair manufactured thereby. .

It is difficult to avoid the cold when working outdoors in the cold winter, when doing business at street stalls, or shooting outdoors.

Accordingly, wood is used to make bonfires, briquette ovens, stoves, etc., but these are bulky, making it difficult for individuals to carry, and there is a problem in that they have to bear the inconvenience of using them together.

In addition, in the case of using such a heating device, it is not suitable for people with discomfort or the elderly to use it because most of them must stand and avoid the cold.

In order to solve the above problems, a heating chair has been developed that allows hot water to flow inside the base of the chair or by installing a heating element in the base of the chair to avoid the cold while sitting on the chair.

However, most of the conventional heating chairs have a complicated structure, and various parts constituting the chair are individually manufactured and then assembled to manufacture a chair.

Accordingly, there is a problem that assembly failure may occur due to dimensional mismatch during the assembly process of each component, and manufacturing time and manufacturing cost are high.

On the other hand, Korean Patent No. 10-1390655 discloses a'carbon fiber planar heating element and a chair using the same,' which is a top and bottom multi-layer arrangement of plate-shaped carbon fiber fabrics that are woven into a certain thickness through carbon fiber and arranged in top and bottom multi-layers. Carbon fiber heating wires that are heated by the application of power are arranged in a zigzag shape and bonded to produce a carbon fiber planar heating element.In addition, a heat sink is installed in an installation groove formed at a certain depth in the upper part of the chair, and the upper part of the heat sink. A chair using a carbon fiber planar heating element is manufactured by mounting and bonding a carbon fiber planar heating element to the side.

In addition, Korean Patent No. 10-1528798 discloses a'heating chair using a carbon fiber heating element', which forms a seating groove at a certain depth on the upper surface of the seat of a chair installed in a bus stop, railway station, or park. Insulation pad, carbon fiber heating element, heating plate, and conductive cover plate are laminated in the mounting groove, and the edge of the mounting groove of the base is finished using finishing silicone.

In addition, Korean Patent No. 10-1884727 discloses a'heating chair using a carbon fiber heating element', which is attached to an elastic pad on the upper surface of the seating jaw of the base frame and printed with a carbon heating element on a plane or a line. After the tempered glass is seated on the upper side of the elastic pad, a watertight coating layer is formed on the upper surface of the tempered glass heating element, and heated air is discharged using a cooling fan of the pedestal frame to cool the tempered glass heating element.

1): Domestic Registration Patent No. 10-1390655 (announced on April 24, 2014) 2): Domestic Patent Registration No. 10-1528798 (announced on June 9, 2015) 3): Domestic Patent Registration No. 10-1884727 (announced on July 27, 2018)

The present invention is to solve the problems of the prior art described above, by manufacturing various parts constituting a heating chair by a 3D printing method and forming a heating pattern by a 2D printing method, thereby preventing assembly defects through the production of parts with accurate dimensions. And a method of manufacturing a portable heating chair capable of improving productivity and reducing manufacturing cost, and to provide a chair thereof.

Another object of the present invention is to make it possible to carry and keep warm, and at the same time convert it into a chair, a single table, and a dual table to be used.

Another object of the present invention is to prevent inconvenience caused by the handle while facilitating portability by using the handle.

A method of manufacturing a portable heating chair using 3D and 2D printing methods of the present invention for achieving the above object comprises: a first step of manufacturing each part of the portable heating chair using a 3D printing method; A second step of printing a heating pattern on the 3D curved surface of the base and the back of the portable heating chair through a 2D printing method; And a third step of assembling the parts of the portable heating chair.

In addition, the 3D printing method is characterized in that any one of an SLA method, an FDM method, and a polyjet method.

In addition, the 2D printing method is characterized in that printing is performed using any one of an inkjet printer and an aerosol printer.

In addition, in the first step, the support part supporting the part is printed by SLA, FDM, or polyjet, and then removed.

In addition, in the second step, the conductive ink is printed using an inkjet printer or an aerosol printer.

In addition, the portable heating chair according to the present invention is manufactured by a 3D printing method, and is rotatably coupled with a hinge bar as the center, and a heating pattern on the rear surface thereof is printed by 2D printing; A pedestal cover disposed under the pedestal to protect the heating pattern; A backrest cover disposed on the rear surface of the backrest to protect the heating pattern; Six support legs rotatably coupled to the square corners of the base cover and the outer corners of the backrest cover, respectively, and provided with a position fixing part in the form of a toothed wheel; A cogwheel-shaped position fixing member which is coupled to the square of the base cover and the outer edge of the backrest cover, and to which the position fixing part of the support leg is coupled; A backrest support member formed in a trapezoidal shape and rotatably installed outside the lower end of the backrest cover to support the backrest; Includes; a handle rotatably coupled to the backrest cover, characterized in that it is converted into a chair and a single table or a dual table according to the coupling position of the backrest.

In addition, it is characterized in that the base is used as a movable table by forming the first table top plate and the backrest forming the second table top plate.

In addition, a handle groove in which the handle is accommodated is formed on the lower outer side of the backrest cover, and the handle has both ends rotatably coupled to the inside of the handle groove.

According to the present invention, as various parts forming a portable heating chair are formed by a 3D printing method, dimensional accuracy is improved so that assembly failure does not occur, and a heating pattern is formed by a 2D printing method, thereby reducing manufacturing cost. There is an effect that can be.

In addition, as the parts of the portable heating chair are formed by 3D printing, there is an effect of improving productivity.

In addition, since the backrest can be converted into a single table by overlapping the base and the backrest can be converted into a dual table by placing the backrest parallel to the base, there is an effect that various shapes can be changed and used as needed.

In addition, since the handle is provided on the backrest, it is easy to carry, and as the handle is accommodated in the handle groove, inconvenience caused by the handle is eliminated.

1 is a flow chart showing a method of manufacturing a portable heating chair using a 3D and 2D printing method according to the present invention.
2 is a view for explaining a 3D printing method in the manufacturing method of the portable heating chair according to the present invention.
3 is a view for explaining a 2D printing method in the manufacturing method of a portable heating chair according to the present invention.
Figure 4 is an exploded view of a portable heating chair manufactured according to the manufacturing method of the portable heating chair of the present invention.
Figure 5 is a configuration diagram of a portable heating chair according to the present invention.
Figure 6 is a perspective view showing a folded state of the portable heating chair according to the present invention.
7 is a view showing a state when the portable heating chair according to the present invention is used as a single table or chair.
8 is a view showing a state when the portable heating chair according to the present invention is used as a dual table.
9 is a photograph of a performance test of a heating element produced by 2D printing on a 3D printed part in a portable heating chair according to the present invention.
10 is a photo of a heat test for each part of a portable heating chair manufactured by 3D and 2D printing methods according to the present invention.

Hereinafter, a method of manufacturing a portable heating chair using a 3D and 2D printing method according to the present invention and a preferred embodiment of the chair will be described with reference to FIGS. 1 to 10.

A method of manufacturing a portable heating chair using 3D and 2D printing methods according to the present invention includes a first step of manufacturing each part of the portable heating chair using a 3D printing method, as shown in FIG. 1; A second step of printing a heating pattern on the three-dimensional curved surface of the base and the back of the portable heating chair through a 2D printing method; And a third step of assembling the parts of the portable heating chair.

Here, as the 3D printing method, it is preferable to use any one of an SLA method, an FDM method, and a polyjet method, and it is more preferable to print in a polyjet method.

In addition, in the 2D printing method, it is preferable to print using either an inkjet printer or an aerosol printer.

Among the 3D printing methods, in the SLA (Stereo Lithography Apparatus) method, a photocurable resin is molded into a desired model by scanning a laser beam into a tank containing an acrylic or epoxy-based photocurable resin.

In the FDM (Fused Deposition Molding) method, a thermoplastic material in the form of a filament is melted in a nozzle and then output in the form of a film to be laminated.

In addition, SLS (Selective Laser Sintering) method, which melts or partially melts and pastes the powdered material with a laser, can be applied. The SLS method is mainly used in the metal field.

In addition, a power bed and inkjet head printing (PBP) method in which the material is solidified by spraying a color bond on a powder-type material may be used.

However, the PBP method has a disadvantage in that the strength immediately after printing is weak and additional hardening is required.

In the case of 3D printing using the polyjet method described above, in the first step, as shown in FIG. 2, the support portion is removed after printing in the SLA, FDM, or polyjet method.

In the polyjet method, while applying electricity to PZT (lead zirconate titanate) provided in the nozzle, support ink is sprayed to form a support part supporting the part, and the part is formed while applying electricity to the PZT provided in another nozzle. Each part is printed by spraying polyjet ink for.

And, in the second step, as shown in FIG. 3, by supplying a gas to the nozzle of the aerosol printer so that the conductive ink is sprayed, the surface of the part molded in the first step, specifically, the bottom of the base and the backrest Each heating pattern is printed on the back side of.

At this time, it is preferable to perform heat treatment to increase the temperature of the heating pattern to 150° C. in order to protect the printed heating pattern.

On the other hand, Figure 9 shows a process of printing a heating pattern on the surface of the part molded in the first step and a performance test picture of the heating element, a process of solidifying the heating pattern by performing heat treatment after printing the heating pattern, It indicates that the temperature increases as the voltage applied to the heating pattern increases.

According to this, it can be seen that when the applied voltage is 2.0V or less, the temperature change does not appear large, and only when the applied voltage exceeds 2.5V, the temperature is higher than the body temperature, and the temperature increases linearly as the voltage increases.

However, when the applied voltage exceeds 4.0V, the temperature of the heating pattern may exceed 90°C and adversely affect the human body. Therefore, it is preferable to apply a voltage of about 2.5 to 4.0V to the heating pattern.

And, Figure 10 shows a picture of the heating performance test for each part of the heating chair manufactured according to the present invention.

In this way, if the parts of the portable heating chair are manufactured using the 3D printing method and then the heating pattern is formed using the 2D printing method, the parts manufacturing process for manufacturing the portable heating chair is simplified, thereby improving productivity and manufacturing cost. This is reduced.

And as each part is manufactured by the 3D printing method, the accuracy of the part dimension is improved, and the parts can be easily combined.

In addition, the portable heating chair according to the present invention is configured to be converted into a chair, a single table, a dual table, and the like according to the coupling position of the backrest.

The portable heating chair of the present invention, as shown in Figs. 4 and 5, is rotatably coupled with the hinge bar 13 as the center, and the heating patterns 11 ′ and 12 ′ are on the rear surface by 2D printing. A printed base 11 and a back 12; A pedestal cover 14 disposed under the pedestal 11 to protect the heating pattern 11; A backrest cover 15 disposed on the rear surface of the backrest 12 to protect the heating pattern 12'; Six support legs (16) each rotatably coupled to the square of the base cover (14) and the outer edge of the backrest cover (15) and provided with a position fixing part (16') in the form of a toothed wheel; The position fixing member 17 in the shape of a toothed wheel is coupled to the square of the base cover 14 and the outer edge of the back cover 15 to which the position fixing part 16 ′ of the support leg 16 is coupled Wow; A backrest support member 18 formed in a trapezoidal shape and installed to be rotatable in an outward direction outside the lower end of the backrest cover 15 to support the backrest 12; A handle 19 rotatably coupled to the backrest cover 15; The back parts are manufactured by the 3D printing method.

The support legs 16 are formed to be folded in different directions so that they do not overlap each other when folded.

In addition, the position fixing unit 16 ′ of the support leg 16 and the position fixing member 17 are composed of a double helical gear, so that the support leg 16 is not rotated without end due to a strong engaging force. desirable.

In addition, the pedestal cover 14 and the backrest cover 15 are formed smaller than the pedestal 11 and the backrest 12, so that the support leg 16 is outside the pedestal 11 or the backrest 12. Do not get out of the way.

And a handle groove (15') in which the handle (19) is accommodated is formed on the lower outside of the backrest cover (15), and both ends of the handle (19) are rotatably coupled to the inside of the handle groove (15'). .

The heating chair of the present invention configured as described above may be changed into a chair, a single table, and a dual table according to the position of the backrest.

First, when used as a chair, as shown in FIG. 4, the backrest 12 is arranged obliquely or vertically at the rear of the pedestal 11, and four supports coupled to the lower portion of the pedestal 11 After all the legs 16 are unfolded, the support legs 16 are fixed so that they are not folded using a position fixing member 17.

Subsequently, the backrest support member 18 is rotated outward so that one of the inclined surfaces of both sides of the backrest support member 18 is in close contact with the lower end of the backrest cover 15, and the other surface is in close contact with the support leg 16. By doing so, the backrest 12 is fixed so that it does not fall backwards.

Since the heating pattern 11 ′ is formed on the bottom surface of the pedestal 11 and the heating pattern 12 ′ is also formed on the rear surface of the backrest 12, the pedestal 11 and the backrest 12 are heated as needed. Can be used.

Here, the support legs 16 coupled to the backrest 12 are kept folded on both sides of the backrest cover 15 so that they have the same shape as a general chair.

Accordingly, the user can avoid the cold by allowing heat to be generated through the heating patterns 11 ′ and 12 ′ provided on the pedestal 11 and the backrest 12 while using it as a general chair.

On the other hand, in the case of carrying the heating chair, as shown in FIG. 6, the backrest fixing member 18 is rotated in the direction of the backrest cover 15 in a state in which the backrest 12 overlaps the base 11.

And after all the support legs 16 are folded, the support legs 16 are fixed so that they do not move using the position fixing member 17.

Subsequently, the handle 19 accommodated in the handle groove 15' of the backrest cover 15 is rotated to protrude to the outside.

Accordingly, it is possible to conveniently carry the heating member by using the handle 19.

And, in the case of using the heating chair as a single table, as shown in FIG. 7, after spreading the four support legs 16 provided on the pedestal 11 from the heating chair in the portable state, the position fixing member It is enough to fix the support leg 16 so that it does not move using (17).

And in the case of using the heating chair as a dual table for two, as shown in FIG. 8, the backrest 12 of the single table or the single chair is rotated so that it is parallel to the base 11, and then the above The backrest 12 is fixed using the backrest fixing member 18.

Subsequently, after unfolding all the support legs 16, the support legs 16 are fixed so that they do not move using the position fixing member 17.

Accordingly, the base 11 forms a first table top plate of a dual table, and the backrest 12 forms a second table top plate.

At this time, if the support legs 16 are not unfolded and kept in a folded state, they can also be used as a dual table for the floor.

In the above, preferred embodiments of the present invention have been exemplarily described, and the scope of the present invention is not limited to the specific embodiments described above. Those of ordinary skill in the art will appreciate that various changes and modifications can be made without departing from the scope of the technical idea of the present invention.

11: base 11': heating pattern
12: back 12': heating pattern
13: Hinge Bar 14: Base cover
15: back cover 15': handle groove
16: support leg 16': location fixed government
17: position fixing member 18: back support member
19: handle

Claims (8)

A first step of manufacturing each part of the portable heating chair using a 3D printing method;
A second step of printing a heating pattern on the 3D curved surface of the base and the back of the portable heating chair through a 2D printing method;
Including; a third step of assembling the parts of the portable heating chair,
The 3D printing method is any one of an SLA method, an FDM method, and a polyjet method,
The 2D printing method includes printing a heating pattern on the bottom of the seat and the rear of the back with conductive ink using any one of an inkjet printer and an aerosol printer. Manufacturing of a portable heating chair using 3D and 2D printing methods Way. delete delete The method of claim 1,
In the first step, a method of manufacturing a portable heating chair using 3D and 2D printing methods, characterized in that the support part supporting the part is printed by SLA, FDM or polyjet method and then removed. delete As a portable heating chair manufactured by the manufacturing method of claim 1 or 4,
A base (11) and a back (12), which are rotatably coupled with the hinge bar (13) as the center, and in which heating patterns (11') (12') are printed on the rear surface by 2D printing;
A pedestal cover 14 disposed under the pedestal 11 to protect the heating pattern 11 ′;
A backrest cover 15 disposed on the rear surface of the backrest 12 to protect the heating pattern 12';
Six support legs (16) rotatably coupled to the square corners of the base cover (14) and the outer edges of the backrest cover (15), respectively, and provided with a position fixing part (16') in the form of a toothed wheel;
The position fixing member 17 in the shape of a toothed wheel is coupled to the square of the base cover 14 and the outer edge of the back cover 15, respectively, to which the position fixing part 16 ′ of the support leg 16 is coupled. )Wow;
A backrest support member 18 formed in a trapezoidal shape and rotatably installed outside the lower end of the backrest cover 15 to support the backrest 12;
Includes; a handle 19 rotatably coupled to the back cover 15,
A handle groove 15' in which the handle 19 is accommodated is formed on the lower outside of the backrest cover 15,
Both ends of the handle 19 are rotatably coupled to the inside of the handle groove 15',
After folding all the support legs 16, the support legs are fixed so that they do not move using a position fixing member, and the handle 19 is rotated to protrude to the outside so that it can be carried.
A portable heating chair, characterized in that it is converted into a chair and a single table or a dual table according to the coupling position of the backrest (12). The method of claim 6,
The pedestal 11 forms a first table top plate,
A portable heating chair, characterized in that the backrest 12 forms a second table top and is used as a movable table. delete

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