KR20190122557A - Sofa and method for fabricating the same - Google Patents

Abstract

The present invention relates to a method for manufacturing a sofa with increased blowing efficiency and sitting comfort. According to the present invention, the method for manufacturing a sofa comprises: an elastic block installation step of putting an elastic block on an elastic block support plate of a sofa frame; a blowing module installation step; a heating seat preparation step; a heating seat attachment step of attaching a heating seat to the upper surface of the elastic block; and a cover installation step of covering the elastic block and the heating seat with a cover and fixing the cover to the sofa frame.

Description

Sofa and its manufacturing method {Sofa and method for fabricating the same}

The present invention relates to a sofa having a blowing module for promoting ventilation in a chair or seat, a sofa having a heating sheet for warming the seat, and a method of manufacturing the sofa.

In order to increase the refreshing feeling to a person sitting in a chair or a seat and to prevent the occurrence of bedsores or sweat bands in the body part in direct contact with the chair or the seat, a chair or a seat having a function of promoting ventilation, that is, a blowing function is known. . Typically, a chair or seat having a blowing function includes a fan for blowing, and an air flow path is formed inside the pad to allow air introduced by the fan to pass through the inside of a pad of the chair. do. On the other hand, a sponge, which is an elastic material, is commonly used in the pad of a chair or a seat to improve a seating feeling. The sponge is formed with a plurality of through holes penetrating the sponge in the thickness direction, and the plurality of through holes become air passages inside the pad.

However, since the sponge is a porous material, there is a problem that the loss of wind pressure in the path is very large until the air boosted by the fan is discharged to the outside of the pad through the plurality of holes. Therefore, when the capacity of the fan is small, the blowing pressure discharged to the outside of the pad of the chair or the seat is too small, and when the capacity of the fan is large, vibration and noise caused by the fan are increased, and power consumption is also increased. In particular, as the pad is pressed when the user is seated on the chair or the seat, the through hole inside the pad is bent or narrowed to further reduce the ventilation function.

Republic of Korea Patent Publication No. 10-2015-0084449

The present invention provides a sofa having a blowing module for blowing air to a seat, and a heating sheet for warming the seat, and a method of manufacturing the sofa.

According to the present invention, an air flow box having a space in which air flows is formed, the air is boosted and discharged, a fan installed inside the air flow box, and a protrusion protruded from each other on an upper surface of the air flow box. And a blower module having a plurality of guide tubes having hollows for guiding the air flowing in the air flow box to the outside, the block supporting the hips of the seater and being resiliently retractable. Elastic block formed with a plurality of guide tube through-holes extending in the thickness direction so that the guide tube is fitted in a one-to-one, spacer fabrics that are attached to the upper side of the elastic block, the gas can penetrate in the horizontal, vertical and thickness direction And a heating wire that generates heat by electric energy supply, which is fixed in contact with the upper side of the spacer fabric. And a sofa frame provided with an elastic block support plate for supporting the elastic block, and an outer cover covered with the elastic block and the heating sheet and fixed to the sofa frame so that the elastic block and the heating sheet are not exposed. In addition, the elastic block support plate is formed with an air flow box mounting portion is supported by the air flow box, the air below the elastic block support plate, the fan, air flow box, a plurality of guide tubes, a plurality of guide tube through holes, It provides a heating sheet and a sofa that is discharged upwardly through the skin.

The air flow box mounting portion is a through hole formed through the elastic block support plate in a thickness direction, and the air flow box has a coupling flange extended in a horizontal direction from its lower edge, and the coupling flange is the elastic It may be fixedly supported on the lower side of the block support plate.

The upper side of the air flow box and the upper side of the elastic block support plate does not have a height difference, and the lower side of the elastic block may be flat so as to contact and support the upper side of the air flow box and the upper side of the elastic block support plate.

Inside the air flow box, a member for guiding the air discharged from the fan to the plurality of guide tubes and reducing noise and vibration of the blowing module, may be provided with a blowing guide member formed of a foamed resin.

The elastic block may be formed of a sponge, and the elastic block may have a plurality of elastic control holes evenly distributed in the elastic block extending in the thickness direction with an inner diameter smaller than the inner diameter of the guide tube through hole.

The outer shell is 1.0 to 1.5 mm thick natural leather, the outer shell may be formed a plurality of air flow through the air evenly distributed 3 to 5 mm intervals.

Each of the plurality of guide tubes is formed of a rubber material, and includes a plurality of wrinkles that are folded and folded on an outer circumferential wall so as to be elastically restorable, such that the elastic block is contracted in its thickness direction so that the plurality of guide tubes Even if the elastically resiliently contracted in its longitudinal direction, the flow of air passing through the plurality of guide tubes and the plurality of guide tube through holes may not be blocked.

An edge of the heating sheet may be bonded to the upper side of the elastic block by an adhesive, and the center portion of the heating sheet may not be attached to the upper side of the elastic block.

The sofa further includes a control box for controlling electric power supplied to the fan and the heating wire, and an input unit for inputting a command to operate the fan and the heating wire, wherein the sofa frame is the elastic member. It is connected to one side of the block support plate, the input unit is further provided with an armrest frame portion formed with an input unit mounting groove for seating fixed, the control box may be attached and supported on the bottom of the elastic block support plate.

The present invention provides an elastic block mounting step of placing the elastic block on the elastic block support plate of the sofa frame, and the air flow box of the blower module is fixed to the air flow box mounting portion of the elastic block support plate, and the plurality of blower modules are fixed. A blowing module installation step of fitting a guide tube of the plurality of guide tube holes of the elastic block, a heating sheet preparing step of preparing the heating sheet, a heating sheet attaching step of attaching the heating sheet to the upper side of the elastic block, The present invention provides a method for manufacturing a sofa having an outer shell covering step of covering an outer shell on the elastic block and a heating sheet and fixing the outer shell to the sofa frame.

The heating sheet preparing step may include a fabric supply step of supplying a fabric of a spacer fabric extending in one direction and having a predetermined width spreading out on a work table, and extending both ends of the fabric in a width direction in parallel to a length direction. Width tension holding step of pressing the pair of width direction pressing portion in the width direction of the fabric, the length of the pair of spaced apart in the longitudinal direction of the fabric extending in the direction orthogonal to the pair of width direction pressing portion Longitudinal tension maintaining step of pressing the fabric in its longitudinal direction by pressing the direction pressing portion, wires the heating wire on the upper side of the inner region of the fabric defined by the pair of widthwise pressing portion and the pair of longitudinal pressing portion A heating wire wiring step, and a heating wire fixing step of fixing the heating wire to the fabric using a fixing thread. Can be.

The pair of widthwise pressurization portions and the pair of longitudinal pressurization portions each rotate by a predetermined angle when the force of the pneumatic cylinder and the pneumatic cylinder is applied, and return to its original position when the force of the pneumatic cylinder is not applied. , A rod extending in a horizontal direction, and a pressure blade connected to the rod to press the fabric when the rod rotates.

The heating wire wiring step and the heating wire fixing step may be simultaneously performed by a sewing head installed on an inner region of the fabric.

The air flow box mounting portion is a through hole formed through the elastic block support plate in a thickness direction, and the air flow box has a coupling flange extending in a horizontal direction from its lower edge, and the blowing module installation step And mounting the air flow box on the air flow box mounting portion under the elastic block support plate, and fixing the coupling flange to the lower side of the elastic block support plate.

The sofa of the present invention is provided with a blowing module and a heat generating sheet to blow cool air to a seated person sitting on the sofa or to warm the seated person. The blower module includes a plurality of protruding guide tubes that are easily aligned and fitted into the plurality of guide tube holes formed in the elastic block of the sofa. Therefore, even if the plurality of guide tubes together with the elastic block, the air flow is not blocked, the blowing efficiency is improved, and the seating feeling is improved.

In addition, the heat generating sheet, by using a spacer fabric instead of using a felt (felt) as a member for supporting the heating wire, it is possible to flow of air in the thickness direction and the planar direction of the heat generating sheet even without processing a separate vent. In addition, since blowing by the fan is dispersed while passing through the spacer fabric, the seated person can feel the warm natural wind. In addition, the spacer fabric is resilient, which elastically wraps the seat's hips for a comfortable seating experience.

1 is a perspective view showing an embodiment of a blowing module.
FIG. 2 is a cross-sectional view of the blower module of FIG. 1 taken along line II-II. FIG.
3 is an exploded perspective view of a thermal pad provided with the blower module of FIG. 1.
4 is a cross-sectional view illustrating the thermal pad of FIG. 3 taken along line IV-IV, illustrating a state in which the thermal pad is assembled.
5 is a sectional view showing another embodiment of the blowing module.
6 and 7 are perspective views showing a sofa according to an embodiment of the present invention, Figure 6 is a view from above, Figure 7 is a view from below.
FIG. 8 is a cross-sectional view of FIG. 6 taken along VIII-VIII.
9 is an exploded perspective view of the sofa of FIG. 6.
10 is a perspective view illustrating the sofa frame of FIG. 6 separately.
11 and 12 are perspective and exploded perspective views of the blowing module of FIG. 9.
13 is an enlarged photograph of the outer skin of a sofa according to an exemplary embodiment of the present invention.
14 is a flowchart illustrating a method of manufacturing a sofa according to an embodiment of the present invention.
FIG. 15 is a perspective view illustrating an example of a sewing apparatus used in a heating sheet preparing step of FIG. 14.
FIG. 16 is a cross-sectional view of FIG. 15 taken along XVI-XVI.
FIG. 17 is a cross-sectional view of FIG. 15 taken along XVII-XVII.

Hereinafter, with reference to the accompanying drawings will be described in detail a sofa and a manufacturing method thereof according to an embodiment of the present invention. Terminology used herein is a term used to properly express a preferred embodiment of the present invention, which may vary depending on the intention of a user or an operator or customs in the field to which the present invention belongs. Therefore, the definitions of the terms should be made based on the contents throughout the specification.

1 is a perspective view showing an embodiment of the blowing module, Figure 2 is a cross-sectional view showing the blowing module of Figure 1 according to II-II, Figure 3 is an exploded view of the thermal pad provided with the blowing module of Figure 1 4 is a cross-sectional view illustrating the thermal pad of FIG. 3 taken along the line IV-IV, illustrating a state in which the thermal pad is assembled. 1 and 2, the blower module 30 according to an embodiment is a module mounted to a chair, a seat, a cushion, or the like so that a function of blowing wind is implemented. ), An air flow box 35, and a plurality of guide tubes 40.

The fan 31 intakes and exhausts the outside air and discharges it. Reference numeral 32 denotes an inlet opening through which air outside the blower module 30 flows into the fan 31, and reference numeral 33 denotes an outlet through which the pressurized air is discharged to the outside of the fan 31. outlet) opening. Inside the air flow box 35 is formed a space through which the air discharged from the outlet opening 33 of the fan 31 flows. The air flow box 35 includes a hard case 36 formed of an inflexible material, specifically, one of metal and plastics, and a guide partition wall inside the hard case 36. (38, 39) is provided.

The hard case 36 is a generally rectangular parallelepiped member having an internal space, and the upper and lower surfaces are flat planes parallel to the XY plane, and the vertical width and the horizontal width in the directions parallel to the X and Y axes are Z axes. Is greater than the height in the parallel direction. However, the shape of the hard case 36 illustrated in FIGS. 1 and 2 is merely exemplary. A plurality of openings corresponding to the plurality of guide tubes 40 in one-to-one correspondence are formed on the upper side of the hard case 36, and the plurality of guide tubes 40 are provided on the upper side of the hard case 36. It is fixedly coupled around the opening of the hard case to be aligned with the opening of the.

Guide partitions 38 and 39 guide the flow of air into the plurality of guide tubes 40 inside the hard case 36. Specifically, in the embodiment of FIG. 1, eight guide tubes 40 are arranged in four rows and two columns on the upper side of the hard case 36, and the guide partitions 38 and 39 are four guide tubes in the first column ( One row separating partition 38 separating the four guide tubes 40 in the second column and eight row separating partitions 39 separating the four guide tubes 40 belonging to each column, one row by row. It is provided. The one thermal separation partition 38 extends in parallel with the Y axis from an intermediate point of the outlet opening 33 of the fan 31, and the eight row separation partitions 39 are spaced apart at equal intervals from each other. It extends parallel to the X axis. However, the number, arrangement, and shape of the guide partition walls 38 and 39 shown in the embodiment of FIG. 1 are merely exemplary.

In the blower module 30 shown in FIGS. 1 and 2, a fan 31 is installed inside the air flow box 35, that is, inside the hard case 36, and a plurality of guides in the air flow box 35. On the opposite side of one side from which the tube 40 protrudes, that is, a lower side of the hard case 36, an inlet (not shown) is formed so that air outside the hard case 36 flows into the fan 31. . However, the blower module 30 of FIGS. 1 and 2 is merely exemplary, and unlike the illustrated example, the fan 31 may be installed outside the air flow box 35. In addition, although the blowing module 30 shown in FIG. 1 and FIG. 2 is equipped with one fan 31, it may alternatively be provided with a some fan.

The plurality of guide tubes 40 allow air discharged from the outlet opening 33 of the fan 31 to flow inside the air flow box 35, outside the air flow box 35, in particular, the Z-axis positive (+). By guiding to the upper side parallel to the direction of the air flow box 35, that is, protrudes upwardly spaced apart from each other on the upper side of the hard case 36. The plurality of guide tubes 40 are formed of an elastic material such as rubber, silicone rubber, or the like.

The plurality of guide tubes 40 are each formed with a hollow 40h so that air flows in parallel with the Z axis. The outer circumferential wall of the guide tube 40 defining the hollow 40h is provided with a plurality of wrinkles 41 folded and folded to be elastically restorable. That is, the guide tube 40 is similar in shape to a so-called 'corrugated tube'. The diameter DG of the guide tube 40 is 8 to 30 mm. The length LG of the guide tube 40 when it is not pressurized and contracted is designed to be smaller than or equal to the thickness of a chair, a seat, a cushion, etc., to which the blower module 30 is installed, and may be approximately 40 to 200 mm.

Guide tube 40 has a flange (43) extending radially at the bottom to increase in diameter, the flange 43 is tightly coupled around the opening of the upper side of the hard case (36). For example, a method such as applying an adhesive or attaching a double-sided adhesive tape may be applied. Specifically, the upper surface of the flange 43 is in the periphery of the opening of the hard case 36 with the flange 43 penetrating the opening of the hard case 36 and inserted into the hard case 36. Can be bonded to the sides. In this case, even when the guide tube 40 is pulled in the direction away from the hard case 36, the guide tube 40 is not easily separated from the hard case 36. However, unlike the example illustrated in FIGS. 1 and 2, the lower side surface of the flange 43 may be joined to the outer peripheral surface around the opening of the hard case 36.

When the upper end 45 of the guide tube 40 is pressed in parallel with the air flow box 35, that is, in the direction of the negative Z-axis, the gap between the plurality of corrugations 41 is narrowed. While being superimposed, the guide tube 40 is contractably resilient in a direction in which the length LG is shortened. However, despite the shortening of the length LG of the guide tube 40 as described above, the inner diameter of the hollow 40h is almost unchanged due to the shape of the corrugated pipe. Therefore, the flow of air through the hollow 40h is not blocked or broken.

That is, even when the plurality of guide tubes 40 are contracted to shorten the length LG of the guide tube 40, the air boosted and discharged by the fan 31 is not the same as when the guide tube 40 is not contracted. Likewise through the air flow box 35 is discharged to the upper side of the blower module 30 through the plurality of guide tubes (40). In other words, there is little difference in the blowing pressure of the blowing module 30 when the length LG of the plurality of guide tubes 40 is shortened or not shortened. When the load applied to the top of the guide tube 40 is removed, the guide tube 40 is elastically restored to its original length LG before being shortened.

3 and 4 together, the thermal pad 10 according to an embodiment of the present invention may be used as a seat or backrest of, for example, an office chair and a car seat, or may be used as a cushion. . The warm pad 10 includes the blower module 30, the elastic block 11, the heater seat 20, the breathable cover 26, and the controller described with reference to FIGS. 1 and 2. (controller) 28 is provided. The elastic block 11 is a block that is elastically restorable and is formed of, for example, urethane foam or sponge material.

The elastic block 11 includes a plurality of through holes 14 extending in the thickness direction, ie, parallel to the Z axis, to cross the elastic block 11 so that the plurality of guide tubes 40 of the blower module 30 are fitted one to one. Is formed. The plurality of guide tubes 40 may be inserted into the plurality of through holes 14 so that the length LG (see FIG. 2) and the diameter DG (see FIG. 2) are not shrunk and are easily fitted. The inner diameter is slightly larger than the diameter DG of the corresponding guide tube 40. In addition, the length in the direction parallel to the Z axis of the plurality of through holes 14 is greater than the length LG of the corresponding guide tube 40.

The heater sheet 20 is a flexible sheet supported on the upper side of the elastic block 11 and includes a heat generator 23 that generates heat by electric energy. Specifically, the heater sheet 20 is a nonflammable base sheet having a plurality of apertures 22 formed in one-to-one alignment with a plurality of apertures 14 of the elastic block 11 along a straight line parallel to the Z axis. A base sheet 21 and an electrothermal wire 23 fixed to an upper surface of the base sheet 21 are provided. The inner diameter of the through hole 22 of the base sheet 21 may be equal to or slightly larger than the size of the inner diameter of the through hole 14 of the elastic block 11.

The breathable cover 26 covers the heater sheet 20 not to be exposed and is supported on the upper side of the heater sheet 20 and the elastic block 11. The air discharged from the plurality of guide tubes 40 of the blower module 30 and moved along the through holes 14 and 22 of the elastic block 11 and the heater seat 20 passes through the breathable cover 26 and is breathable. The breathable cover 26 is an inflammable sheet in which air can flow in the thickness direction so as to be discharged to the upper side of the cover 26. As the breathable cover 26, for example, a spacer fabric may be applied.

The air flow box 35 is seated and fixed in an air flow box seating groove 12 that is stepped into the lower side of the elastic block 11. The ceiling surface of the seating groove 12 is connected to the lower end of the plurality of through holes (14). Thus, the air flow box 35 is aligned with the seating groove 12 and the air flow box 35 is aligned with the seating groove 12 so that the plurality of guide tubes 40 are fitted into the plurality of through holes 14. In close contact with the ceiling surface of the air flow box 35 is seated in the seating groove 12. In this case, the intake port formed in the lower surface of the hard case 36 is opened toward the lower side of the elastic block 11 so that external air flows into the fan 31.

When the fan 31 is operated, the outside air introduced into the fan 31 through the inlet of the hard case 36 is boosted and discharged into the inner space of the air flow box 35, and the plurality of guide tubes 40 ), The plurality of through holes 14 of the elastic block 11, the plurality of through holes 22 of the heater sheet 20, and the breathable cover 26 are discharged from the upper side of the heating pad 10. When only the fan 31 is operated without the electric power supplied to the heating element, that is, the heating wire 23, the wind at room temperature is upper side of the heating pad 10, that is, the upper side of the breathable cover 26. Ejected from That is, only the simple blowing function is performed. Although the fan 31 is not operated and power is supplied to the heating wire 23, when the heat is generated, the upper side of the heating pad 10, that is, the upper side of the breathable cover 26 is heated by heat conduction, but the breathable cover No wind is emitted from the upper side of (26). Meanwhile, when the heating wire 23 generates heat and at the same time the fan 31 operates, hot air having a temperature higher than room temperature may be discharged from the upper side of the breathable cover 26.

The controller 28 controls the operation of the heating wire 23 of the fan 31 and the heater seat 20. A circuit board (not shown) inside the housing of the controller 28 is connected to the heating wire 23 and the fan 31 by wires 24 and 49, respectively. Although not shown, the controller 28 may be electrically connected to an electric socket for supplying power through an AC adapter to receive DC power. In addition, the battery pack may be electrically connected to a battery pack to receive DC power. The controller 28 may be provided with an input button (not shown) for inputting an instruction for controlling the operation of the fan 31 and the heater seat 20.

On the other hand, the controller 28 may include a Bluetooth communication module mounted on the circuit board to perform short-range communication with the smartphone 5 in a Bluetooth (Bluetooth) manner. The smartphone 5 may be installed with an application for controlling the operation of the fan 31 and the heater seat 20. The user of the thermal pad 10 may input an instruction for controlling the operation of the fan 31 and the heater seat 20 through an application installed in the smart phone 5. For example, through the application, it is possible to control the blowing intensity, blowing time, the heating intensity of the heating wire 23, the heating time and the like.

5 is a sectional view showing another embodiment of the blowing module. Referring to FIG. 5, the blower module 60 according to another embodiment may be installed in the thermal pad 10 shown in FIGS. 3 and 4 in place of the blower module 30 illustrated in FIGS. 1 and 2. Can be. The blower module 60 has a fan 61, an air flow box 65, and a plurality of guide tubes 70.

The fan 31 intakes and exhausts the outside air and discharges it. Reference numeral '62' is an inlet opening through which air outside the blower module 60 is introduced into the fan 61, and reference numeral '63' denotes an outlet through which the pressurized air is discharged to the outside of the fan 61 ( outlet) opening. Inside the air flow box 65 is formed a space through which the air discharged from the outlet opening 63 of the fan 61 flows.

Air flow box 65 includes spacer fabrics 67, lower and upper shape retaining sheets 68 and 69, and an impermeable pouch 66. The spacer fabric 67 is formed to have a 3D mesh structure so that air can flow in the planar direction and the thickness direction therein. The outlet opening 63 of the fan 61 is disposed to face one side of the spacer fabric 67.

The lower and upper shape retaining sheets 68 and 69 are sheets stacked on both sides of the spacer fabric 67 in the thickness direction, that is, the lower side and the upper side thereof, and together with the spacer fabric 67 of the air flow box 65. A shape-maintaining sheet, which is formed of an air-impermeable, stiff material. In detail, the lower and upper shape maintaining sheets 68 and 69 may include a sheet of felt material having stiff and limited elastic restoring force, and a polyvinyl chloride film bonded to one side of the sheet of felt material. It is provided. The upper shape-retaining sheet 69 is formed with a plurality of openings corresponding one-to-one with the plurality of guide tubes 70.

The non-breathable pouch 66 surrounds the spacer fabric 67 and the fan 61 and is formed of an air-impermeable material. An upper side surface of the non-breathable pouch 66 is disposed to face the upper shape retaining sheet 69. On the upper side of the non-breathable pouch 66, a plurality of openings are formed that correspond one-to-one to the plurality of guide tubes 70 and are aligned with the plurality of openings of the upper shape-retaining sheet 69. In the blower module 60 shown in FIG. 5, a fan 61 is installed inside the air flow box 65, that is, inside the non-breathable pouch) 66, and a plurality of guides in the air flow box 65. On the opposite side of one side from which the tube 70 protrudes, that is, the lower side of the non-breathable pouch 66, an inlet (not shown) opened to allow air outside the non-breathable pouch 66 to flow into the fan 61. Is formed. However, the blower module 60 shown in FIG. 5 is merely exemplary, and unlike the illustrated example, the fan 61 may be installed outside the air flow box 65. In addition, although the blowing module 60 shown in FIG. 5 is provided with one fan 61, it may alternatively be provided with a some fan.

The plurality of guide tubes 70 discharge air that flows out of the outlet opening 63 of the fan 61 and flows inside the air flow box 65, outside the air flow box 65, specifically, the Z-axis positive (+). By guiding upwards parallel to the direction of, it protrudes upwardly apart from each other on the upper side of the air flow box 65, ie the non-breathable pouch 66. The plurality of guide tubes 70 are formed of an elastic material such as, for example, rubber, silicone rubber, or the like.

Each of the plurality of guide tubes 70 is formed with a hollow 70h so that air flows in parallel with the Z axis. The outer circumferential wall of the guide tube 70 defining the hollow 70h is formed with a plurality of wrinkles 71 folded and folded to be elastically restorable. In other words, the guide tube 70 is similar in shape to a so-called 'corrugated tube'. Guide tube 70 has a flange (73) extending radially at the lower end to a larger diameter, the flange 73 is in close contact with the opening around the upper shape-retaining sheet (69). For example, a method such as applying an adhesive or attaching a double-sided adhesive tape may be applied. Specifically, the flange 73 is interposed between the upper shape retaining sheet 69 and the spacer fabric 67 through the opening of the non-breathable pouch 66 and the opening of the upper shape retaining sheet 69. The upper side surface of the flange 73 can be joined to the inner peripheral surface of the opening of the upper shape-retaining sheet 69. In this case, the guide tube 70 is not easily separated from the air flow box 65 even when the guide tube 70 is pulled in the direction away from the non-breathable pouch 66. However, unlike the example shown in FIG. 5, the lower side surface of the flange 73 may be joined to the outer peripheral surface of the periphery of the upper shape maintaining sheet 69.

When the upper end 75 of the guide tube 70 is pressed in parallel with the air flow box 65, that is, in the direction of the negative Z-axis, the gap between the plurality of corrugations 71 is narrowed. While overlapping, the guide tube 70 is resiliently retractable in a direction in which the length thereof is shortened. However, despite the shortening of the length of the guide tube 70 as described above, the inner diameter of the hollow 70h is hardly changed due to the shape of the corrugated pipe. Therefore, the flow of air through the hollow 70h is not blocked or broken.

That is, even when the plurality of guide tubes 70 are contracted and the length of the guide tube 70 is shortened, the air boosted and discharged by the fan 61 is air flowed as in the case where the guide tube 70 is not contracted. Passed through the box 65 is discharged to the upper side of the blowing module 60 through the plurality of guide tubes (70). In other words, there is almost no difference in the blowing pressure of the blowing module 60 when the lengths of the plurality of guide tubes 70 are shortened or not shortened. When the load applied to the top of the guide tube 70 is removed, the guide tube 70 is elastically restored to its original length before shortening.

6 and 7 are perspective views showing a sofa according to an embodiment of the present invention, FIG. 6 is a view from above, FIG. 7 is a view from below, and FIG. 8 is a cutaway view of FIG. 6 according to VIII-VIII. 9 is an exploded perspective view of the sofa of FIG. 6, FIG. 10 is a perspective view showing the sofa frame of FIG. 6 separately, and FIGS. 11 and 12 are a perspective view and an exploded perspective view of the blowing module of FIG. 9, and FIG. 13 is an enlarged photograph of the outer skin of the sofa according to the embodiment of the present invention. 6 to 13 together, the sofa 100 according to an embodiment of the present invention is a sofa frame (101), elastic block 113, a pair of air blowing module 130, a pair of heat generation A sheet 120, an outer shell 127, a control box 152, and an input unit 153 are provided. In FIGS. 6 to 8, the outer shell 127 is omitted, but the outer shell 127 is covered by the actual sofa 100.

The sofa frame 101 is typically made of wood and has a horizontal elastic block support plate 104 and a side that supports both ends of the elastic block support plate 104 so that the elastic block support plate 104 is spaced apart from the floor by a constant height. Frame portion 102, the backrest frame portion 109 provided at the rear of the elastic block support plate 104, the armrest frame portion 110 fixed to the side frame portion 102 on one side, and the elastic block support plate A lower horizontal plate 107 fixed to and supported by the side frame portion 102 on the one side below the 104 is provided.

The elastic block support plate 104 is a horizontal plate for supporting the elastic block 113, and a pair of air flow box mounts 106 are formed to support the air flow box 131 of the blower module 130. Each air flow mounting portion 106 is a through hole formed through the elastic block support plate 104 in the thickness direction.

The elastic block 113 is a block that is elastically restorable and is formed of, for example, a sponge material. The elastic block 113 extends in a thickness direction, that is, parallel to the Z axis so that the plurality of guide tubes 145 of the blower module 130 is fitted one-to-one, and includes a plurality of guide tube holes 115 crossing the elastic block 113. ) Is formed. In order for the plurality of guide tubes 145 to be easily fitted into the plurality of guide tube holes 115 without shrinking in length and diameter, the inner diameter of the guide tube holes 115 may correspond to the corresponding guide tube ( Slightly larger than the diameter of 145). In addition, the length in the direction parallel to the Z axis of the plurality of guide tube through holes 115 is longer than the length of the corresponding guide tube 145.

The elastic block 113 is formed with a plurality of elastic adjustment holes 116 having an inner diameter smaller than the inner diameter of the guide tube through hole 115 and extending in the thickness direction of the elastic block 113 similarly to the guide tube through hole 115. . The plurality of elastic adjustment through holes 116 are evenly distributed in the elastic block 115. In the conventional sofa, the elastic block 113 is supported by a spring or elastic band, but in the sofa 100 of the present invention, the elastic block 113 is an elastic block having no elasticity so as to easily mount the blower module 130. It is supported by the support plate 104. Accordingly, in order to reinforce elasticity when the seated person sits, an elastic block 113 made of a large elastic sponge may be used. In this case, the elasticity of the central portion of the elastic block 113 in which the plurality of guide tube holes 115 are disposed becomes excessively weaker than the elasticity of the peripheral portion. Depression will result in poor seating. Therefore, the seating feeling can be improved by forming a plurality of elastically adjustable through holes 116 evenly distributed to mitigate the difference in elasticity between the central portion and the periphery of the elastic block 113 in which the plurality of guide tube holes 115 are formed. On the other hand, the backrest frame portion 109 is fixedly supported by a backrest elastic block 150 for supporting the back of the seat.

The pair of blowing modules 130 is a module that implements a function of blowing wind. Each blow module 130 has a pair of fans 138, an air flow box 131, a blow guide member 140, and a plurality of guide tubes 145. The pair of fans 138 intakes and exhausts the outside air and discharges it, and is fixedly installed in the air flow box 131. Reference numeral 139 is an outlet opening through which the pressurized air is discharged out of the fan 138. Inside the air flow box 131 is formed a space in which the air discharged from the outlet opening 139 of the fan 138 flows.

The air flow box 131 is a hard case in which an internal space through which air flows is formed. The air flow box 131 has a flat base 136 and a cover 133 fastened to the base 136. The cover 183 is formed with a plurality of openings 135 corresponding to the guide tubes 145 in a one-to-one manner, and the plurality of guide tubes 145 are aligned with the openings 135. It is fixedly coupled around the opening 135 of 183. The base 136 is provided with a pair of inlets 137 that are open to allow external air to flow into the pair of fans 138.

The air flow box 131 has a coupling flange 132 extending in the horizontal direction at the bottom edge. When the blower module 130 is mounted on the air flow box mounting unit 106 in the form of a through hole and fixed to the elastic block support plate 104, the air flow box 131 is lifted up from the bottom of the elastic block support plate 104 to allow the air. It is fitted to the flow box mounting portion 106, the plurality of guide tube 145 is fitted into the plurality of guide tube through holes 115, the coupling flange 132 is on the lower side 105L of the elastic block support plate 104 It is fixedly supported.

The upper surface 134U of the air flow box 131, that is, the upper surface 134U of the cover 133, and the elastic block support plate 104 with the air flow box 131 mounted on the air flow box mounting unit 106. The upper side of 105U has no height difference. That is, it does not step. Correspondingly, the lower side 114L of the elastic block 113 is flat so as to be in contact with and supported by the upper side 134U of the air flow box 131 and the upper side 105U of the elastic block support plate 104.

The plurality of guide tubes 145 discharge air flowing from the outlet openings 139 of the pair of fans 138 and flowing inside the air flow box 131 outside the air flow box 131, specifically, the Z axis amount. It guides to the upper side parallel to the direction of (+), protrudes upward from the cover 133 apart from each other. The plurality of guide tubes 145 are formed of a rubber material such as, for example, silicone rubber.

Each of the plurality of guide tubes 145 is hollow so that air flows in parallel with the Z axis. The outer circumferential wall of the guide tube 145 defining the hollow is provided with a plurality of wrinkles 146 folded and folded to be elastically restorable. That is, the guide tube 145 is similar in shape to a so-called 'corrugated tube'. The guide tube 145 has a flange 148 extending radially at the bottom thereof to increase in diameter, and the flange 148 is tightly coupled around the opening 135 of the cover 133. For example, a method such as applying an adhesive or attaching a double-sided adhesive tape may be applied. In detail, the upper surface of the flange 148 is in the cover 133 around the opening 135 with the flange 148 inserted into the air flow box 131 through the opening 135. Can be bonded to the sides. In this case, the guide tube 145 is not easily separated from the air flow box 131 even when the guide tube 145 is pulled upward in the direction away from the air flow box 131.

When the upper end of the guide tube 145 is close to the air flow box 131, that is, when pressed downward, the gap between the plurality of corrugations 146 is narrowed and the guide tube 145 has a short length. It contracts elastically restorable in a losing direction. However, despite the shortening of the length of the guide tube 145, the inner diameter of the hollow of the guide tube 145 is almost unchanged due to the shape of the corrugated pipe. Thus, the flow of air through the hollow is not blocked or broken.

That is, even when the plurality of guide tubes 145 are contracted and the length of the guide tube 145 is shortened, the air boosted and discharged by the fan 138 is in the air flow as in the case where the guide tube 145 is not contracted. Passed through the inside of the box 131 is discharged to the upper side of the blowing module 130 through a plurality of guide tubes (145). In other words, there is little difference in the blowing pressure of the blowing module 130 when the lengths of the plurality of guide tubes 145 are shortened or not shortened. When the load applied to the top of the guide tube 145 is removed, the guide tube 145 is elastically restored to its original length before being shortened.

The blowing guide member 140 guides the air discharged from the pair of fans 138 to the plurality of guide tubes 145 and reduces the noise and vibration of the blowing module 130. The air flow box 131 ) Is placed in the inner space. The blowing guide member 140 is made of, for example, a foamed resin such as sponge or urethane. The upper side surface 141U and the lower side surface 141L of the blowing guide member 140 are in contact with the lower side surface of the cover 133 and the upper side surface of the base 136. The blowing guide member 140 is provided with a pair of air guide grooves 142 and a fan installation groove 143 on one side of the pair of air guide grooves 142. The air guide groove 142 and the fan installation groove 143 are formed to extend in parallel with the direction of the positive X axis from the fan installation groove 143 and under the plurality of openings 135 of the cover 133. Is formed.

The air discharged from the outlet opening 139 of the pair of fans 138 moves along the air guide groove 142 and blows upward through the plurality of guide tubes 145 while minimizing the loss of flow rate or flow rate. do. Therefore, the air discharged from the plurality of guide tubes 145 does not have a large flow rate variation according to the distance from the fan 138, and is blown at a uniform flow rate. In addition, while the energy loss due to the air flows in the direction away from the guide tube 145 inside the air flow box 131, noise and vibration of the blower module 130 is reduced.

The pair of heat generating sheets 120 are attached to the upper side of the elastic block 113. Each heating sheet 120 includes spacer fabrics 121, electric heating wires 123, and fixing yarns 125. The spacer fabric 121 is a flexible sheet that can be folded or bent, and is a breathable sheet through which gas can penetrate in a plane direction, that is, in a transverse, longitudinal, and thickness direction. The spacer fabric 121 includes a lower net sheet and an upper net sheet in which a plurality of holes are uniformly distributed, and a plurality of elastic yarns. The lower net sheet and the upper net sheet are nonflammable sheets and are spaced apart from each other. The plurality of elastic yarns are elastically restorable yarns, the lower end of which is fixed to the lower net sheet and the upper end of which is fixed to the upper net sheet. The plurality of elastic yarns are evenly spaced apart from each other, and two or more do not overlap or twist each other.

The heating wire 123 is a heating element that generates heat by supplying electrical energy, and is fixed to the upper surface of the spacer fabric 121, that is, the surface of the upper net sheet. The heating wire 123 extends along a zigzag path at the upper side of the spacer fabric 121. The fixed yarn 125 is a thread fixing the heating wire 123 to the spacer fabric 121. The lower net sheet and the upper net sheet are wound together to fix the heating wire 123 to the upper net sheet. That is, the heating wire 123 and the spacer fabric 21 are wound together with the fixing thread 125 so that the heating wire 123 is in contact with the upper net sheet.

The thickness of the spacer fabric 121 may be 2 to 10 mm. When the thickness is thinner than 2 mm, the spacer fabric 121 is too thin, so that the heating sheet 120 may be warped or easily wrinkled, and the elasticity of the spacer fabric 121 is insufficient when the seater is seated on the sofa 100. The seating feeling can be lowered. On the other hand, if the thickness is greater than 10mm, the cost of the spacer fabric 121 is increased, the speed of the work for fixing the heating wire 123 to the spacer fabric 121 using the fixing thread 125 is lowered and the defective rate is also increased Can be.

The pair of heat generating sheets 120 are bonded to the upper side 114U of the elastic block 113 by an adhesive. Specifically, the edge of each heat generating sheet 120 is bonded to the upper surface 114U of the elastic block 113 by an adhesive, and the center of the heat generating sheet 120 is the upper surface 114U of the elastic block 113. Does not adhere to In other words, since the central portion of the elastic block 113 in which the plurality of guide tube holes 115 are formed is a portion in which the compression and expansion are large due to the load of the seat when the seat is seated on the sofa 100, When the central portion and the central portion of the elastic block 113 is bonded and connected to each other, rather than the heat generating sheet 120 or the elastic block 113 is easily damaged, durability is reduced.

The outer shell 127 is covered by the elastic block 113 and the pair of heating sheets 120 and fixedly supported by the sofa frame 101 so that the elastic block 113 and the pair of heating sheets 120 are not exposed. do. The outer shell 127 may be covered with the sofa frame 101 to cover all or a portion of the sofa frame 101. Preferably, the outer shell 127 is a natural leather obtained by separating the natural whole leather, such as cowhide, pig leather, sheepskin, 5.0 to 6.0 mm thick to 1.0 to 1.5 mm thick. The shell 127 is formed with a plurality of air flows 128 capable of flowing air evenly distributed in a 3 to 5mm interval (GP). When the outer skin 127 is a natural leather thicker than 1.0 to 1.5mm thick, when the air through hole 128 is formed, fine hairs are generated in the outer skin 127, which is not good for aesthetics and hygiene, and the surface of the outer skin 127. This may not be smooth.

When the pair of fans 138 provided in the blower module 130 is operated, the air under the elastic block support plate 104 is connected to the pair of fans 138 and the air flow box 131. The guide tube 145, the plurality of guide tube through holes 115, the heating sheet 120, and the plurality of air through holes 128 of the shell 127 are discharged upward. As a result, the seated person in contact with the upper side of the shell 127 may feel the wind blowing from below.

The control box 152 controls the power supplied to the fan 138 and the heating wire 123 to control their operation. The control box 152 is attached to and supported by the lower side of the elastic block support plate 104. The circuit board (not shown) provided in the control box 152 may be connected to the heating wire 123 and the fan 138 by wires (not shown), respectively. The control box 152 may be connected to an AC adapter (not shown) that is connected to a power socket for supplying electric power, and may receive DC power. Alternatively, the battery pack may be connected to a battery pack (not shown) to be supplied with DC power. The lower horizontal plate 107 is fixedly supported by a bracket 108 for fixing the AC adapter or the battery pack.

The input unit 153 is a means for inputting a command for operating the fan 138 and the heating wire 123, and has a button for inputting the command. The armrest frame 110 has an input unit mounting groove 111 formed at a position where the seat of the seat can reach, and the input unit 153 is fitted to the input unit mounting groove 111. The input unit 153 and the control box 152 are connected by a wire.

14 is a flowchart illustrating a method of manufacturing a sofa according to an exemplary embodiment of the present invention, FIG. 15 is a perspective view illustrating an example of a sewing apparatus used in the heating sheet preparation step of FIG. 14, and FIG. 16 is XVI of FIG. 15. Fig. 17 is a cross-sectional view taken along the line XVI, and Fig. 17 is a cross-sectional view taken along line XVII-XVII. 6 to 10, and 14 together, the manufacturing method of the sofa 100 according to an embodiment of the present invention, elastic block installation step (S10), blowing module installation step (S20), heating sheet preparation step (S30), the heating sheet attaching step (S40), the outer shell installation step (S50), the control box installation step (S60), and the input unit installation step (S70).

The elastic block installation step S10 is a step of placing the elastic block 113 on the elastic block support plate 104 of the sofa frame 101. Step S10 includes fixing and supporting the backrest elastic block 150 to the backrest frame portion 109 of the sofa frame 101. Blowing module installation step (S20) is fixed by fitting the air flow box 131 (see Fig. 11) of the blower module 130 to the air flow box mounting portion 106 of the elastic block support plate 104, blower module 130 The plurality of guide tubes 145 are inserted into the plurality of guide tube holes 115 of the elastic block 113.

The blowing module installation step (S20), the step of mounting the air flow box 131 on the air flow box mounting portion 106 under the elastic block support plate 104 (S21), and the air flow box 131 Fixing the coupling flange 132 to the lower surface 105L of the elastic block support plate 104 (S22). In other words, the air flow box 131 is raised from the bottom of the elastic block support plate 104 when the blower module 130 is mounted to the air flow box mounting unit 106 in the form of a hole and fixed to the elastic block support plate 104. To the air flow box mount 106. In this case, the air flow box 131 is lifted upward while the plurality of guide tubes 145 are aligned with the plurality of guide tube holes 115 of the elastic block 113, so that the plurality of guide tubes 145 are connected to the plurality of guide tubes 145. Guide tube through hole 115 to be fitted. The engagement flange 132 of the air flow box 131 is fixedly supported on the lower side 105L of the elastic block support plate 104.

8 and 14 to 17 together, the heating sheet preparing step (S30) is a step of preparing the heating sheet 120, the fabric supply step (S31), the width direction (tension) maintaining step (S32) , Longitudinal tension maintaining step (S33), heating wire wiring step (S34), heating wire fixing step (S35), and fabric cutting step (S36). The heating sheet preparation step (S30) is automatically performed by using the sewing device 160 for producing a heating sheet.

In the fabric supply step S31, the fabric 122 of the spacer fabric 121 having a predetermined width and extending in one direction, specifically, in a direction parallel to the Y axis with reference to FIG. 15, has a work table 161. This step is to unfold the supply. The width direction tension maintaining step (S32) is a pair of width direction pressurization extending in parallel to the longitudinal direction, both ends in the width direction of the fabric 122, specifically, in the direction parallel to the X-axis based on FIG. Pressing the portion 165 to pull the fabric 122 in its width direction. The longitudinal tension maintaining step (S33) is a pair of longitudinal pressing portions 175 spaced apart in the longitudinal direction of the fabric 122 and extending in a direction orthogonal to the pair of widthwise pressing portions 165. Press to pull the fabric 122 in its longitudinal direction. The heating wire wiring step (S34) is a heating wire 123 on the upper side of the inner region (IN) of the fabric 122, which is defined by the pair of the widthwise pressing portion 165 and the pair of longitudinal pressing portion 175. ) Is the step of wiring.

The heating wire fixing step (S35) is a step of fixing the heating wire 123 to the fabric 122 by using a fixing yarn 125. The fabric cutting step (S36) is a step of cutting the fabric 122 into a size and shape that can be placed on the upper surface 114U of the elastic block 113. The inner region IN of the fabric 122 surrounded by the pair of widthwise pressing portions 165 and the pair of longitudinal pressing portions 175 through steps S32 and S33 is the width direction of the fabric 122. And tension in the longitudinal direction, i.e., the direction parallel to the X axis and the direction parallel to the Y axis.

The sewing device 160 includes a work table 161, a rectangular border frame 162 disposed on the work table 161, and a pair of partial inner portions extending parallel to the X axis in the border frame 162. A pair of X beams 164 supported at and extending in parallel to the X axis, and a pair of longitudinal presses supported in the pair of X beams 164 and extending in parallel with the X axis ( 175, a pair of widthwise pressing portions 165 supported by the pair of longitudinal pressing portions 175 and extending in parallel with the Y axis, and a sewing head 185.

The pair of longitudinal press portions 175 each include a pneumatic cylinder 177, an X direction rod 179, a rod cover 176, and first and second X direction press blades. 181, 182 is provided. The X-direction rod 179 is a rod extending in parallel with the X axis, and rotates by a predetermined angle when the force of the pneumatic cylinder 177 acts, and returns to its original position when the force of the pneumatic cylinder 177 does not act Biased to return. The rod cover 176 covers the X direction rod 179 and is fixedly supported to the X beam 164 by a bracket. The first and second X direction pressing blades 181 and 182 are connected to the X direction rod 179 so as to protrude from the X direction rod 179 and extend parallel to the X axis. The first and second X-direction pressing blades 181 and 182 are spaced apart from each other, and end contact members made of a material having high friction and elasticity, such as rubber, for example, are installed at the ends. The trigger 180 is fixedly installed at one end of the X-direction rod 179.

The pair of widthwise pressurizing portions 165 are pneumatic cylinders 166, Y-rods 167, Y-direction press blades 169, and Y-direction rods 167 and Y-direction, respectively. A connector 168 is provided to connect the pressure blade 169. The Y-direction rod 167 is a rod extending in parallel with the Y axis, and rotates by a predetermined angle when the force of the pneumatic cylinder 166 acts, and returns to its original position when the force of the pneumatic cylinder 166 does not act. To return. Both ends of the Y-direction rod 167 are supported by the pair of rod covers 176 by brackets. The Y-direction pressure blade 169 is connected to the Y-direction rod 167 by a connector 18 and extends in parallel with the Y axis. The Y-direction pressure blade 169 is provided with a distal contact member made of a material having high friction and elasticity, such as rubber, for example.

The fabric 122 of the spacer fabric 121 is fed onto the workbench 161 through a slot between one X bar 164 and a rod cover 176 supported thereon and the other X bar 164. And a workbench 161 through a slot between the rod cover 176 supported thereto. The length of the far end 122 is greater than the distance between the pair of portions extending parallel to the Y axis and extending parallel to the X axis of the border frame 162. The width of the far end 122 is less than the distance between the pair of portions extending parallel to the Y axis of the border frame 162 and slightly greater than the spacing between the ends of the pair of Y-direction pressing blades 169.

As described above, the cylinder rod of the pneumatic cylinder 177 protrudes from the cylinder body to push the trigger 180 in a state in which the fabric 122 is unfolded and supplied on the work table 161. And the X direction rod 179 rotates such that the ends of the second X direction pressing blades 181 and 182 are lowered. Accordingly, two points in the longitudinal direction extending along a straight line parallel to the X axis and spaced apart from each other in the far end 122 are pressed by the pair of first and second X direction pressing blades 181 and 182. The fabric 122 is pulled out and tension is maintained in the longitudinal direction.

In addition, when the cylinder rod of the pneumatic cylinder 166 protrudes from the cylinder body, the Y-direction rod 16 rotates so that the end of the Y-direction pressing blade 169 descends. Accordingly, the two points in the width direction extending along a straight line parallel to the Y axis and spaced apart from each other in the fabric 122 are pulled while being pressed by the ends of the pair of Y-direction pressing blades 169, and the fabric 122 ) Is kept tight in the width direction.

As a result, the heating wire 123 in the inner region IN of the fabric 122 defined by the pair of first and second X-direction pressing blades 181, 182 and the pair of Y-direction pressing blades 169. ) And the tension is kept tight so that the operation of fixing the heating wire 125 to the fixing thread 125 can be precisely performed. The pair of first and second X-direction pressing blades 181 and 182 press the fabric 122 and the pair of the Y-direction pressing blades 169 press the fabric 122 Can be performed simultaneously. That is, steps S32 and S33 may be performed at the same time.

The sewing head 185 is installed on the inner region IN. The heating wire wiring step S34 and the heating wire fixing step S35 are simultaneously performed by the sewing head 185. As described above, the pair of first and second X-direction pressing blades 181 and 182 and the pair of Y-direction pressing blades 169 tighten tension in the inner region IN of the fabric 122. Since the heating wire fixing step (S35) is maintained, the fabric 122 is not twisted or unevenly wrinkled despite the force to pull the fabric 122. And the heating head wiring step S34 and the heating wire fixing step S35 may be performed while the sewing head 185 moves in the horizontal direction, and the sewing head 185 does not move in the horizontal direction. The heating wire wiring step S34 and the heating wire fixing step S35 may be performed while the lengthwise pressing part 175 and the pair of widthwise pressing parts 165 move in the horizontal direction.

When the steps S34 and S35 are completed, as the cylinder rods of the pneumatic cylinders 166 and 177 are returned to their original positions in the direction of insertion into the cylinder body, a pair of Y-direction pressure blades 169 and the pair of first and The second X-direction pressing blades 181 and 182 return to their original positions so as to be spaced apart from the far end 122. 16 and 17, the Y-direction pressing blade 169 and the first and second X-direction pressing blades 181 and 182 returned to their original positions are shown by the dashed-dotted line. Then, the fabric 122 in which the heating wire 123 is wired along a predetermined pattern is removed from the work table 161, and the fabric cutting operation 36 is performed. The step S36 may be performed by an automatic cutting device or by an operator.

6 to 10, 13, and 14, the heating sheet attaching step (S40) is a step of attaching the pair of heating sheets 120 to the upper surface 114U of the elastic block 113. . In step S40, as described above, the edges of the heating sheet 120 are bonded to the upper surface 114U of the elastic block 113 by an adhesive, and the center of the heating sheet 120 is the upper surface of the elastic block 113 ( 114U).

Outer shell installation step (S50) is a step of covering the outer shell 127 on the elastic block 113 and a pair of heating sheet 120 and fixed to the sofa frame 101. In the skin installation step S50, the skin 127 may be covered with the sofa frame 101 to cover all or a part of the sofa frame 101.

The control box installation step (S60) is a step of attaching the control box 152 to the sofa frame 101, specifically, the lower side 105L of the elastic block support plate 104. In the control box installation step (S60), the bracket 108 is fixed to the lower horizontal plate 107 of the sofa frame 101, and the AC adapter or battery pack is fixed to the bracket 108. Include.

The input unit installation step S70 is a step of installing the input unit 153 into the input unit mounting groove 111 formed in the armrest frame unit 110. The input unit installation step S70 includes connecting the input unit 153 and the control box 152 with a wire.

The sofa 100 includes a blower module 130 and a heating sheet 120 to blow cool air to a seated person sitting on the sofa 100 or to warm the seated person. The blower module 130 includes a plurality of protruding guide tubes 145 that are easily aligned and fitted into the plurality of guide tube through holes 115 formed in the elastic block 113 of the sofa 100. Therefore, even if the plurality of guide tubes 145 together with the elastic block 113, the air flow is not blocked, so the blowing efficiency is improved, and the seating feeling is improved.

In addition, the heat generating sheet 120 uses a spacer fabric 121 instead of using a felt as a member for supporting the heating wire 123, so that the thickness of the heat generating sheet 120 is not processed separately. The flow of air in the direction and the planar direction is possible. In addition, since the blowing by the fan 138 is dispersed while passing through the spacer fabric 121, the seated person can feel the warm natural wind. In addition, the spacer fabric 121 has elasticity to elastically wrap the hips of the seater to feel a comfortable seating feeling.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

100: sofa 101: sofa frame
104: elastic block support plate 113: elastic block
120: heat generating sheet 130: air blowing module
127: jacket 152: control box

Claims (14)

An air flow box having a space in which air flows, and boosting and discharging air, a fan installed inside the air flow box, and protruded apart from each other on an upper surface of the air flow box, wherein the air flow A blowing module having a plurality of guide tubes having hollows for guiding the air flowing inside the box to the outside; A block for supporting the seat of the seat and elastically restorable, the block comprising: an elastic block having a plurality of guide tube holes extending in a thickness direction so that the plurality of guide tubes are fitted one-to-one; Spacer fabrics attached to the upper side of the elastic block, the spacer fabrics through which gas can penetrate in the horizontal, vertical, and thickness directions, and the heating wire that generates heat by electric energy supply, which is fixed in contact with the upper side of the spacer fabric. Heating sheet having a; A sofa frame having an elastic block support plate supporting the elastic block; And an outer cover covered with the elastic block and the heating sheet and fixedly supported by the sofa frame so that the elastic block and the heating sheet are not exposed.
The elastic block support plate is formed with an air flow box mounting portion is supported by the air flow box,
Air under the elastic block support plate, the sofa (sofa) characterized in that is discharged upward through the fan, the air flow box, the plurality of guide tube, the plurality of guide tube through hole, the heating sheet, and the shell. According to claim 1,
The air flow box mounting portion is a through hole formed through the elastic block support plate in the thickness direction,
The air flow box has a coupling flange extending in the horizontal direction at its bottom edge,
And the coupling flange is fixedly supported on the lower side of the elastic block support plate. According to claim 1,
The upper side of the air flow box and the upper side of the elastic block support plate does not have a height difference, and the lower side of the elastic block is flat so as to be supported in contact with the upper side of the air flow box and the upper side of the elastic block support plate. Sofa. According to claim 1,
A sofa comprising inside the air flow box, a member for guiding air discharged from the fan to the plurality of guide tubes and reducing noise and vibration of the blower module, and having a blowing guide member formed of foamed resin. (sofa). According to claim 1,
The elastic block is formed of a sponge (sponge),
The elastic block sofa characterized in that the elastic block is formed with a plurality of elastic adjustment holes evenly distributed in the elastic block extending in the thickness direction having an inner diameter smaller than the inner diameter of the guide tube hole. According to claim 1,
The outer shell is 1.0 to 1.5mm thick natural leather,
Sofa, characterized in that the outer surface is formed with a plurality of air through the air flow evenly distributed in the interval of 3 to 5mm. According to claim 1,
Each of the plurality of guide tubes is formed of a rubber material, and includes a plurality of wrinkles that are folded and folded on an outer circumferential wall so as to be elastically restorable, such that the elastic block is contracted in its thickness direction so that the plurality of guide tubes The air flows through the plurality of guide tubes and the plurality of guide tube through holes even if the contraction is elastically restorable in the longitudinal direction of the sofa, characterized in that not blocked. According to claim 1,
The edge of the heating sheet is bonded to the upper side of the elastic block by an adhesive, the central portion of the heating sheet is sofa, characterized in that not bonded to the upper side of the elastic block. According to claim 1,
The sofa includes a control box controlling a power supplied to the fan and the heating wire; And an input unit for inputting a command to operate the fan and the heating wire.
The sofa frame is connected to one side of the elastic block support plate, and further comprises an armrest frame portion formed with an input unit mounting groove for fixing the input unit,
And the control box is attached to and supported by a bottom of the elastic block support plate. As the sofa manufacturing method of claim 1,
An elastic block installation step of placing the elastic block on the elastic block support plate of the sofa frame; A blowing module installation step of fitting an air flow box of the blowing module to the air flow box mounting portion of the elastic block support plate, and fitting the plurality of guide tubes of the blowing module into the plurality of guide tube through holes of the elastic block; A heating sheet preparing step of preparing the heating sheet; Attaching the heating sheet to the upper surface of the elastic block; And a shell installation step of covering the shell on the elastic block and the heating sheet and fixing the shell to the sofa frame. The method of claim 10,
The heating sheet preparing step may include a fabric supply step of supplying a fabric of a spacer fabric extending in one direction and having a predetermined width spreading out on a work table, and extending both ends of the fabric in a width direction in parallel to a length direction. Width tension holding step of pressing the pair of width direction pressing portion in the width direction of the fabric, the length of the pair of spaced apart in the longitudinal direction of the fabric extending in the direction orthogonal to the pair of width direction pressing portion Longitudinal tension maintaining step of pressing the fabric in its longitudinal direction by pressing in the direction pressing portion, and wires the heating wires on the upper side of the inner region of the fabric defined by the pair of widthwise pressing portions and the pair of longitudinal pressing portions Heating wire wiring step, and a heating wire fixing step of fixing the heating wire to the fabric using a fixing thread. Sofa manufacturing method characterized in that. The method of claim 11, wherein
The pair of widthwise pressurization portions and the pair of longitudinal pressurization portions each rotate by a predetermined angle when the force of the pneumatic cylinder and the pneumatic cylinder is applied, and return to its original position when the force of the pneumatic cylinder is not applied. And a rod extending in a horizontal direction, and a pressing blade connected to the rod to press the fabric when the rod rotates. The method of claim 11, wherein
The heating wire wiring step and the heating wire fixing step is performed at the same time by a sewing head (head) provided on the inner region of the fabric. The method of claim 10,
The air flow box mounting portion is a through hole formed through the elastic block support plate in the thickness direction,
The air flow box has a coupling flange extending in the horizontal direction at its bottom edge,
The blowing module installation step may include mounting the air flow box on the air flow box mounting portion under the elastic block support plate, and fixing the coupling flange to the lower side of the elastic block support plate. Sofa manufacturing method.

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