KR100801926B1 - Chair cushion seat and its manufacturing method - Google Patents

Abstract

The present invention has an exterior having an adhesive part adapted to the bending of a designed chair frame, a set of cushioning cells arranged between the adhesive parts, and a ventilation corridor installed above the adhesive part so as to exist between the cushioning cells; A sponge cushion body cell provided with a base paper and a surface paper and provided between the base paper and the surface paper so as to elastically support the surface paper; It is a chair cushioning body sheet which consists of the corridor which extended surface layer paper along the periphery of a cushion body cell, and adhere | attached the surface layer paper on the base layer with the sponge hot melt melt | dissolved in the corridor part. The present invention is excellent body fit and cushion stability, good breathability, the cushion cell is divided into a bead type, etc., the cushion body cells are collected to form a chair cushion body, the set of the cushion body cells by body contact area Arranged according to the site, attaching the assembly of cushioning cells to the chair frame reveals the aesthetics of the designed chair, diversifies the design of the collar, and installs a ventilation corridor between the cushioning cells, Elegant and high quality, easy to manufacture, mass production and quality control.

Description

Chair cushion seat and manufacturing method thereof {CHAIR CUSHION SHEET AND THE PROCESS}

1 is a product photograph of Example 1 in which a chair cushion body sheet is assembled to a chair

Fig. 2 is a product photograph of Example 2 in which a chair cushion body sheet is assembled into a chair;

3 is a product photograph of Example 3 in which a chair cushion body sheet is assembled into a chair

4 is an exploded view of surface, sponge and substrate;

5 is a state attached to the surface paper on the sponge

Figure 6 is a state attached to the base paper sponge

Fig. 7 is a state diagram in which a sponge to which surface paper and base paper are bonded is set in a molding die;

Figure 8 is a state diagram for molding the cushioning sheet in the molding die

9 is a state in which the seat cushion material sheet separated from the molding die

10 is a side view of the cushion material seat assembly;

* Description of the main symbols

11 is an adhesive, 12 is a cushion cell, 13 is a corridor, 21 is a surface paper, 22 is a base paper, 23 is a hot melt polyurethane sponge, 25 is a slab, 28 is a cushioning sheet assembly, 41 is a mold, 42 is Molding punch, 43 is mold

TECHNICAL FIELD This invention relates to a chair cushion body seat and its manufacturing method. More specifically, the present invention relates to a chair cushion body used for an office chair, a furniture chair including a relaxation chair, or an automobile chair.

The cushion seat used in the furniture chair is a seat and a back seat cushion seat for the user to sit on. The chair cushion body seat requires human affinity because the user's weight is placed on the cushion body seat. Car seat cushion body seats should have more properties than furniture chairs. Looking at the usage environment that dominates the car chair, the car chair is shake or vibration transmitted by the driving of the vehicle. Consider a car chair that sits all day. The car chair is in close contact with the driver's body for safe driving. The car chair has little free space in use and cannot use the swivel chair. An automobile chair constrains a user's sitting position. In addition, considering the user's environment of sitting on a chair for a long time, the cushion seat is directly involved in maintaining the user's health and is involved in the efficiency of the user's work. Combining these requirements, the seat cushion body seat including the automobile chair should be considered for adhesion, contact stability, breathability, heat insulation, light weight, and the like.

This has been examined in the present invention, and the three biggest challenges in chair cushioning seats are i) body fit ii) cushion stability and iii) breathability. High-quality chair cushion body seats improve work efficiency. The chair cushion body seat protects the user's correct posture and health and should be treated with care and care.

A feature of the conventional chair cushioning body seat is given by a round and large elastomeric cell that covers the elastic body with an exterior material. Conventional chair cushion seats are divided into one or two or three cells and are in close contact with the user's body. Large cushion body cells are difficult to expect body fit, cushion stability and breathability. In addition, the conventional chair attempts to ventilate the user by using a bead cushion seated on the seat in order to obtain breathability or by installing a power forced ventilation device to the chair. Adding other equipment or devices on the chair cushion body seat is unsightly, adds to the user's fatigue, distorts the user's posture and harms his health.

This invention aims at providing the chair cushion body seat excellent in body conformity. The present invention seeks to provide a chair cushion body seat having excellent cushion stability. This invention aims at providing the chair cushion body seat excellent in breathability. The present invention seeks to provide a chair cushioning body seat in which a cushioning cell is divided into cushioning cells, such as a turtle's back, and collected and arranged. The present invention seeks to provide a chair cushioning body seat in which sets of cushioning cells are arranged for body parts by body contacting parts. The present invention seeks to provide a chair cushion seat in which the aesthetics of the designed chair are revealed well when the aggregate of cushioning cells is attached to the chair frame. The present invention seeks to provide a seat cushion body seat capable of diversifying the collar design. This invention aims at providing the chair cushion body seat | seat which installed the ventilation corridor between cushion body cells. The present invention seeks to provide a seat cushion body seat which is neat, elegant and of high quality. The present invention aims to provide a seat cushion body seat which is easy to manufacture and easy to mass produce. This invention aims at providing the chair cushion body seat which is easy to quality control.

The present invention provides a chair cushion body seat excellent in body fit cushion stability and breathability. Body conformity included in the present invention is that the curved cushioning seat based on the body line of a healthy user achieves proper weight distribution. The line of the body curve is reflected in the design of the chair frame, and as the cushion seat, the design line applied to the chair frame may be well represented on the outside of the cushion body. The present invention reflects the body conformity as described above because the cushioning body is divided into a cushioning body cell and the cushioning body sheet having a uniform thickness and elasticity is provided. The stability line of the cushion of the present invention divides the cushioning body into a cushioning body and adheres the circumference of the cushioning body at an adhesive part, thereby eliminating the instability caused by the flow of the cushioning body and exerting a stable cushioning function. In the present invention, a ventilation passage having sufficient ventilation amount is disposed between the cushioning cells, so that air is sufficiently distributed between the cushioning cells while the user's weight is reflected in the chair seat. The present invention assigns the distribution area ratio of the ventilation corridor in consideration of the contact pressure of each part of the body to achieve a stable ventilation operation as a whole. The present invention increases the aesthetic value and the dignity of the chair by variously arranging the combination of the cushion cell and the hall.

When explaining the invention according to the embodiment as follows. The chair cushioning body seat of the present invention is arranged between the adhesive part 11 adapted to the bending of the designed chair frame 51, the adhesive part 11 and arranged between the assembly of the cushioning body 12 and the cushioning cell. The exterior having a ventilating corridor 13 installed above the adhesive portion 11 so as to

A base paper 22 and a surface paper 21 are provided, and a heat-melt polyurethane sponge 23 is provided between the base paper 22 and the surface paper 21 so as to elastically support the surface paper 21. The cushion body 12,

The surface layer 21 is stretched along the circumference of the cushion cell 12 so that the air passage corridor 13 is formed to be in close contact with the base layer 22, and the heat-melt polyurethane sponge of the part of the corridor 13 is formed. Was melted by heating and pressurized, and the adhesive layer 11 attached to the base paper 22 was attached to the surface paper 21, which was stretched and adhered by a sponge hot melt in a molten state in which the sponge was melted.

The cushion body sheet sets the size and distribution area ratio of the cushion body 12 and the corridor 13 differently for each contacting body part of the user.

In the present invention, the set of the cushioning cells 12 is a plate-shaped cushioning body in which the shape and the color are selected for each user's body part and the thickness of the chair body 51 is the same so as to show the warpage of the chair frame 51 on the outside of the cushioning body 12. It is a collection of cells 12.

The seat cushion body sheet of the present invention as described above is melted by heat of 110 ~ 160 ℃, the sponge hot melt melted sponge is prepared by heat-curable polyurethane sponge (23) having an adhesive function while cooling and curing, one surface of the sponge Spread the hot melt melted sponge on the surface of the sponge by dissolving the sponge thinly.Then, the surface of the cushion paper is not melted at 170 ℃ but has a texture, density, durability, washability and elasticity for adaptation during molding. ) Superimposed, pressurized, cooled to bond the surface paper 21 to one surface of the sponge 23, the surface paper adhesion step,

Heat the tile surface of the hot melt polyurethane sponge 23 with a flame to distribute a thin sponge hot melt in a state in which the sponge is melted on the sponge tile surface, and then the base substrate 22 which does not melt at 170 ° C. is tiled. A base paper adhering step of adhering the base paper 22 to the surface of the heat-melt polyurethane sponge tile by stacking it on a pressurized and cooled surface;

The base layer 22 and the surface layer 21 are attached at a temperature of 110 to 160 ° C., and the hot melt polyurethane sponge 23, which is sandwiched, is sandwiched with the forming punch 42 of the upper mold 41 having a corridor shape. The sponge is inserted between the molds 43 and heated to 170 ° C., which is the melting temperature of the sponge, to melt a part of the corridor 13 of the sponge and subjected to a pressure of 80-100 kg / cm 2. The upper portion of the 23 is pressed to form a corridor 13 by dividing the sponge 23 into the cushion cell 12 on the base paper 22 and simultaneously forming the corridor 13. A molding step of wetting the adhesive part of the base paper 22 and the surface paper 21 which is stretched and adhered on the base paper to the sponge hot melt in which the corridor 13 is melted,

In the forming step, the molded shape is fixed, and the sponge hot melt, which is a sponge melt that is wetted with the base paper 22 and the surface paper 21 in the corridor 13, is hardened, thereby adhering the adhesive part 11. .

The hot melt polyurethane sponge 23 has a thickness of 2 to 5 cm. The hot melt polyurethane sponge 23 may be used to overlap the upper sponge and the lower sponge two sheets divided in half for the efficiency of the work line. In this case, the surface paper 21 is adhered to the upper sponge, the base paper 22 is adhered to the lower sponge separately, and then the upper and lower sponges are overlapped to produce a cushioning sheet.

The hot melt polyurethane sponge used in the embodiment of the present invention has a density of 26 to 30 kg / m 3, hardness of 11 to 15 kg / 314 cm 2, and melting temperature of 110 to 160 ° C. to be. This invention heat meltable polyurethane sponge 23 is a corridor forming punch 42 of the mold heated to 150 ~ 170 ℃ when the corridor part is pressurized, the corridor part is melted by the punch heat, the sponge plate is molded while forming the corridor 13 The sponge hot melt, which is divided into the sieve cells 12 and melts the part of the corridor 13, is viscous while retaining the heat of fusion, and the viscous sponge hot melt is cured into a solid as it cools down to the surface layer 21 and the base paper ( 22).

The surface layer 21 having the elasticity for texture, density, durability, washability, and elongation adaptation during molding as the hide of the cushioning body does not melt at 170 ° C. of the present invention is a one-way or two-way stretch fabric having a basis weight of 40 to 250 g / m 2. Or plastic film (or sheet) is used. The surface layer paper 21 of a suitable cushioning body sheet in consideration of economy and practicality is 180 g / m 2 polyester stretch fabric.

The polyester stretch fabric is stably preserved in the tissue at the melting temperature of 150 ~ 170 ℃ of the sponge, the molding punch 42 of the mold presses a part of the corridor 13 of the sheet to the hot melt polyurethane sponge When the corridor 13 is molded, it is stretched to cover the inner rib wall of the corridor 13 with the surface layer paper 21, and a solid sheet-like adhesive portion 11 is formed on the base paper 22 by the adhesive force of the sponge hot melt in which the sponge is melted. After the molding, the soft touch and the delicate structure were preserved on the outside of the sheet, and the washability was also good, so that the cushion sheet was satisfied with the molding characteristics.

The base paper 22 is not deformed at the melting temperature of 150 ~ 170 ℃ of the hot melt polyurethane sponge, it is adhered to the surface paper by a sponge hot melt melted sponge, and supports the sponge 23 after molding It prevents the sponge from leaving. The base paper of this invention is 8-40 g / m <2> in basis weight. The base paper 22 in consideration of economy and utility is a heat-resistant filament yarn mesh having a basis weight of 12 g / m 2.

The cushion cell 12 of the present invention is molded while forming a corridor by melting a part of the corridor 13 of a planar and plate-shaped hot melt polyurethane sponge, thereby forming a plate-shaped cushion body having a uniform thickness. Since the cushion body seat of the cushioning seat of the present invention has the same thickness as the plate, the bent line designed on the chair frame is clearly visible on the outside of the seat when attached to the chair frame.

The cushion body sheet of the present invention varies the size of the cushion cell 12 for each user's body part, and allocates a distribution area ratio of the corridor 13 to 5-15% of the seat area for each user's body part. The width of the corridor 13 is 1 ~ 4cm. 1 to 3, the backrest portions A, B, E, F, H, J have a corridor distribution area ratio of 6-8%, and the inner side of the seat plate (C, G, K) has 7-10%. to be. In the present invention, when the degree of sharing of the user's weight is large, the hallway distribution area ratio is largely allocated to preserve the decrease in aeration amount due to narrowing of the hallway by the sharing weight.

The heat-melt polyurethane sponge 23 of the present invention can provide a flame-retardant chair cushioning body sheet by including a flame-retardant material in the sponge composition.

According to the present invention, the cushion body sheet assembly 28 may be formed by attaching the plastic cushion plate 25 formed on the back surface of the chair cushion body sheet 20 to match the bent line of the chair frame 51. The attaching method is to sew and connect the bias 26 to the edge of the chair cushion body sheet 20, and the chair cushion body sheet 20 with the bias 26 attached to the outer surface of the inner plate, and is fastened with the bias 26. While covering the edges of the smoothly covered with the pin pin 27, the bias 25 is stretched and stretched on the back of the plate 25.

If the cushion body seat assembly 28 having the back plate 25 attached to the back surface is made before the chair assembly, the chair cushion body 20 assembly process is separated from the chair assembly process so that the part work can be performed and the chair finished product can be shipped. When the divided cushion body sheet assembly 28 is divided and packaged, it is possible to prevent contamination of the seat, and to separate and wash the cushion body sheet assembly 28 during use, and to separate the seat of the chair, The user can also purchase a new cushion body seat assembly 28 to replace the chair seat.

Example 1

In FIG. 1, the chair frame 51 and the cushion seat are made of curved backrests A and B and seat plates C and D in consideration of body curves. The cushioning seat is installed on the frame in FIG. 1 to show the intended bending of the frame on the backrest (A, B) portion and the seat plate (C, D) portion on the surface of the cushioning body 12. The upper back portion A for each body part is in contact with the body of the cushion cell 12 and the ventilation corridor 13 installed along the shape of the spine and the ribs. The lower back B is in contact with the body of the cushion cell 12 and the ventilation corridor 13, which are installed long left and right. Inside the seat plate (C) is the portion where the weight is concentrated, the cushion body 12 is arranged small and the ventilation corridor 13 network is concentrated so that the breathable and the stability of the cushion body is in contact with the body. The outside (D) of the seating plate is positioned with a simple cushioning cell to reflect the location and conditions that require less weight distribution and aeration, and instead require durability.

1, the cushioning seat of the present invention is carefully considered for body conformity, cushion stability, and breathability.

Example 2

In FIG. 2, the chair frame 51 and the cushion seat are made of curved backrests E and F and seat plates G and H in consideration of body curves. The cushioning seat is installed on the frame in FIG. 2 to show the intended bending of the frame on the backrest (E, F) portion and the seat plate (G, H) portion of the cushioning body (12). The upper back E for each body part is in contact with the body of the cushion cell 12 and the ventilation corridor 13 installed long to the left and right. Likewise, the lower back F is in contact with the body of the cushion cell 12 and the ventilation corridor 13, which are provided to the left and right. The inside of the seat plate (G) is a part where the weight is concentrated, and the body of the cushion cell 12 and the ventilation corridor 13, which are divided into three sides to the left and right and divided into four sides, are arranged to enhance breathability and stability of the cushion body. Is in contact with. The outside of the seat plate (H) has a large cushioning cell arranged to reflect the location and conditions that require less weight distribution and aeration, and instead require durability.

2, the cushioning seat of the present invention is carefully considered for body conformity, cushion stability, and breathability.

Example 3

In FIG. 3, the chair frame 51 and the cushion seat are made of curved backrests I and J and seat plates K and L in consideration of body curves. This invention cushion seat is installed in the frame in Fig. 3 so that the intended deflection of the frame is clearly shown on the outside of the cushion cell 12 in the backrest I, J and seat plate K, L portions. The upper back portion I and the lower back portion J of the user's body part are arranged in contact with the body by placing a cushioned cushion cell 12 and a ventilation corridor 13 in a turtle shape. The inside of the seat plate (K) is a part where the weight is concentrated, and the body of the cushion body 12 and the ventilation corridor 13, which are divided into three parts from side to side and divided into four sides, are arranged to improve breathability and stability of the cushion body. Is in contact with. One outside of the seat plate (L) wide one cushioning cell was placed to reflect the location and conditions that require less weight distribution and aeration, and instead durability.

3, the cushioning seat of the present invention is carefully considered for body conformity, cushion stability and breathability.

Example 4

The chair cushioning body of this invention was manufactured as follows.

Sponge hot melt, melted in heat and melted sponge is cured while contacting the flame on one surface of the heat-melting polyurethane sponge I having a thickness of 17 mm with adhesive strength to distribute the sponge hot melt melted sponge on the surface of the sponge, the basis weight 180g / ㎡ The surface paper, a polyester stretch fabric, was overlaid, pressed and cooled to bond the surface paper to one surface of the sponge I.

Sponge hot melt, melted in heat, and melted sponge is cured, and the surface of the sponge is melted on a surface of the heat-melting polyurethane sponge II having a thickness of 17 mm, which has an adhesive function. The yarn was laminated on the tile surface, pressurized and cooled to bond the base paper to the tile surface of the sponge II.

The two sheets of hot melt polyurethane sponges I and II were superimposed so that the surface paper and the base paper were on the outer surface and the sponges were in contact with each other.

Sandwich-like hot melt polyurethane sponge laminates having a base paper and a surface paper superimposed with a sponge I and a sponge II are inserted between an upper mold and a flat lower mold in which a corrugated molding punch is arranged. The upper part of the surface paper was heated and pressurized to form a cushioning cell and a ventilation corridor, and at the same time, the surface paper and the base paper of the bonded portion were bonded with a sponge hot melt in which the sponge of the corridor was melted.

In the molding step, a sponge hot melt moistened with the surface layer paper and the base paper of the adhesive portion was cooled and cured so that the molded shape was adhesively fixed at the adhesive portion.

As described above, the present invention is excellent in body conformity and cushion stability, good breathability, the cushioning cells are divided, the cushioning cells are collected to form a chair cushioning body, and the set of cushioning cells is the body part by body contact area. When placed in the seat, the assembly of cushion cells can be attached to the chair frame to reveal the aesthetics of the designed chair, diversify the design of the collar, and install a ventilation corridor between the cushion cells, and the appearance is neat and elegant. It provides high quality, easy to manufacture, mass production and quality control.

Claims (7)

In the chair cushion body seat, An exterior having an adhesive part adapted to the bending of the designed chair frame, a set of cushioning cells arranged between the adhesive parts, and a ventilation corridor installed above the adhesive part so as to exist between the cushioning cells, A sponge cushion body cell provided with a base paper and a surface paper and provided between the base paper and the surface paper so as to elastically support the surface paper, A chair cushioning body sheet comprising a corridor which stretches the surface paper along the periphery of the cushion body cell and adheres to the base paper, and an adhesive portion in which the surface paper is adhered onto the base paper with a sponge hot melt in which the sponge of the corridor is melted. The chair cushioning seat according to claim 1, wherein the cushion seat has a corridor width of 1 to 4 cm and a corridor area ratio of 5 to 15% is assigned to the seat area for each user's body part. The chair cushioning body seat according to claim 1, wherein the assembly of the cushioning body cells comprises a plate-shaped cushioning body having the same thickness and the warp of the chair frame is displayed on the outside of the cushioning seat. The seat cushion body seat according to claim 1, wherein the surface paper is a stretch polyester fabric having a basis weight of 50 to 250 g / m 2. The seat cushion body seat according to claim 1, wherein the sponge is a hot melt polyurethane sponge, and the thickness of the sponge inserted between the surface paper and the base paper is 2 to 5 cm. The chair cushioning body seat according to claim 1, wherein a plastic inner plate formed on the rear surface of the chair cushioning body seat is formed in accordance with the bending of the chair frame. The sponge hot melt, melted at a temperature of 110 ~ 160 ℃ and the sponge melted, disperses the sponge hot melt in which the sponge is melted on the surface of the sponge by heating one surface of the heat-melting polyurethane sponge having the adhesive power with a flame. A surface paper bonding step of bonding the surface paper on one surface of the hot melt polyurethane sponge by laminating, pressing and cooling the surface paper which is an insoluble stretchable polyester fabric, Heat the tile surface of the hot melt polyurethane sponge with a flame to distribute a sponge hot melt in which the sponge is melted on the tile surface of the sponge. A base paper bonding step of bonding the base paper to the other surface of the meltable polyurethane sponge, Insert a hot melt polyurethane sponge with a base paper and a surface paper between the upper mold and the lower mold with a ventilating corrugation punch and inserting the upper portion of the sponge with a corrugated molding punch heated to 150 to 170 ° C. Pressurization at ~ 100kg / ㎠ to form a corridor while forming a hot melt polyurethane sponge into a cushion cell on the base paper, and to form a corridor, and the hot melt polyurethane sponge hot melt melted sponge in the corridor part Forming step to wet the contact surface paper, Bonding the surface layer paper to the base paper by cooling and hardening a sponge hot melt moistened with the base paper and the surface paper in the corridor; The manufacturing method of the chair cushion body seat comprised with this.

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