KR101508725B1 - coil spring, pocket spring set and manufacturing method thereof - Google Patents

Abstract

The present inventions relates to coil spring, pocket spring set, and a manufacturing method thereof which controls noises by improving coil spring shape, reinforces elasticity, and simplifies a manufacturing process of a pocket spring assembly. The present invention comprises: a first input phase to input a lower non-woven (20) or a soft plastic material on top of a bench, and an arrangement phase to arrange a plurality of coil spring (10) on top of the lower non-woven (20) or the soft plastic material; a second phase to input the top non-woven (20) or the soft plastic material on top of the coil spring (10), and wrap up a top non-woven (30) or soft plastic material around the coil spring (10) adhesive phase to bond the top non-woven (20) or the soft plastic material of the adjoining coil spring (10) gap to the lower non-woven (20) or soft plastic material using thermal bonding or hot-melting bonding methods.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil spring, a pocket spring assembly including the coil spring,

The present invention relates to a coil spring, a pocket spring assembly including the coil spring, and a method of manufacturing the same. More particularly, the present invention relates to a coil spring that improves the shape of a coil spring to suppress noise generation, And a pocket spring assembly including the coil spring and a method of manufacturing the same.

Generally, a bed mattress is provided with one or more than one in a bed frame to provide a cushioning force or a buffering force. The bed mattress includes a spring assembly in which coil springs are arranged along a longitudinal direction and a transverse direction in a receiving space of a frame member, And a cover member which is respectively wrapped on the upper and lower surfaces of the cushion member and the cushion member of the foam material or the foamed material laminated on the upper and lower surfaces of the assembly, respectively.

The above-mentioned bed mattress is constructed such that the springs of the spring assembly are interconnected along the longitudinal direction or the transverse direction, so that the impact or the jolt applied to the mattress is directly transmitted to the coil spring immediately adjacent thereto, I can not take a good night's sleep.

In order to solve the disadvantages of the conventional spring assembly as described above, the pockets are continuously arranged in the receiving space of the rim member along the longitudinal direction to accommodate the coil springs, and then the pocket set is made of a flexible material A pocket spring in the form of a member is proposed, for example, the prior arts disclosed in Patent Documents 1 to 4.

In the 'structure and manufacturing method of a pocket spring for a mattress' of Patent Document 1, the coil springs are housed individually in the receiving space of the pockets, but each coil spring must be housed in the pockets and each pocket must be connected by the melting part , The coil spring has to be fixed to the helical coil by using the fixing member, so that the manufacturing process becomes long.

In the 'mattress' of Patent Document 2, the coil springs are enclosed in the pockets, but the coil springs must be enclosed in the pockets, thereby increasing the manufacturing process.

In the 'pocket structure for a mattress pocket spring' of Patent Document 3, a coil spring is accommodated in a pocket made of a nonwoven fabric, but each coil spring must be packed in a nonwoven fabric, and a sanitary pouch containing a fragrance is installed in the pocket. There is a problem that the process of manufacturing the pockets having the coil springs is prolonged.

The 'bed mattress' of Patent Document 4 is also packaged individually in the pockets of the coil springs, so that the manufacturing process is prolonged like the above Patent Documents 1 to 3.

In addition, the coil springs of Patent Documents 1 to 4 have the same or similar diameters of windings wound in a coil shape, so that there is a problem that when the impact is applied from the upper portion, the windings of the coil spring come into contact with each other and noise is generated.

Korean Registered Patent Publication No. 10-0503556 (2005. 07. 25. Announcement) Registered Utility Model Registration No. 20-0372690 of Korea Register (2005. 01. 14. Announcement) Korean Registered Utility Model Registration No. 20-0460317 (2012. 05. 21. Announcement) Korean Patent Laid-Open Publication No. 10-2013-0084477 (published on February 25, 2013)

SUMMARY OF THE INVENTION The present invention has been made to overcome the problems of the prior art as described above, and it is an object of the present invention to provide a coil spring which prevents the windings constituting the coil spring from contacting each other, It has its purpose.

Further, according to the present invention, a plurality of coil springs are wrapped one by one in a nonwoven fabric or a soft plastic material, or all at once, and bonded together to manufacture a pocket spring assembly, thereby shortening the manufacturing process of the mattress and reducing the cost, And the elasticity of the mattress is further strengthened by interposing a pocket spring assembly between the upper and lower portions of the mattress or the upper and lower portions of the mattress, thereby maintaining a comfortable sleep.

The object of the present invention as described above is achieved by a coil spring in which a winding is wound in a coil shape and wound so that the diameter progressively increases as the winding goes down.

According to one aspect of the invention, the windings are wound at a distance of one to two times the winding diameter to prevent contact noise from occurring due to the fact that they do not contact the upper or lower adjacent windings.

According to another aspect of the present invention, the upper end portion and the lower end portion of the winding are wound in a length of 3/4 to 1 rotation and are horizontal by the length.

According to another aspect of the present invention, the upper end and the lower end of the winding are bent in parallel to the horizontal plane, or the upper end of the winding is bent downward, and the lower end of the winding is bent upward.

According to another aspect of the present invention, the number of revolutions of the windings may be 4 to 6 times or more.

Another object of the present invention is to provide a nonwoven fabric comprising a flat nonwoven fabric or a soft plastic material; A plurality of coil springs arranged at regular intervals on the lower nonwoven fabric or the soft plastic material; And a plurality of coil springs which are respectively disposed on upper portions of the plurality of coil springs so as to surround the coil springs and which are adjacent to each other and which are adjacent to each other by a thermal bonding or hot melt adhesive bonding method with the lower nonwoven fabric or the soft plastic material The upper nonwoven fabric or the soft plastic material bonded to the upper nonwoven fabric.

According to one aspect of the present invention, the lower nonwoven fabric or the soft plastic material may have a coupling groove corresponding to the arrangement position of the coil spring.

According to another aspect of the present invention, the upper nonwoven fabric or the soft plastic material may be adhered to the lower nonwoven fabric or the soft plastic material by thermal bonding or hot-melt bonding in one to four places.

It is still another object of the present invention to provide a method of manufacturing a semiconductor device, comprising: a first loading step of loading a lower nonwoven fabric or a soft plastic material onto a workbench; Arranging a plurality of coil springs on the lower nonwoven fabric or the soft plastic material; A second injection step of injecting an upper nonwoven fabric or a soft plastic material into the upper portion of the coil spring; And wrapping the upper nonwoven fabric or the soft plastic material along the periphery of the coil spring so that the upper nonwoven fabric or the soft plastic material corresponding to the portion between the adjacent coil springs is wound around the lower nonwoven fabric or the soft plastic material And a bonding step in which the bonding is performed by bonding or hot-melt bonding.

According to one aspect of the present invention, in the arranging step, the coil springs are individually arranged on the lower nonwoven fabric or the upper portion of the soft plastic material, or are automatically arranged at a time.

According to another aspect of the present invention, in the adhering step, the upper nonwoven fabric or the soft plastic material may be adhered to the lower nonwoven fabric or the soft plastic material by thermal bonding or hot-melt adhesive bonding in one to four places .

According to another aspect of the present invention, the lower nonwoven fabric or the soft plastic material, the upper nonwoven fabric, or the soft plastic material may be provided on the lower nonwoven fabric or the soft plastic material, Hot-melt adhesive bonding method, or after the coil springs are all arranged on the lower non-woven fabric or the soft plastic material, they are thermally adhered or hot-melt bonded together along the circumference of each coil spring at one time do.

Still another object of the present invention is to provide a pocket spring assembly; And a closing member formed by vertically stacking an upper closure member and a lower closure member so as to receive the pocket spring assembly and surrounding the pocket spring assembly and sewing the outer periphery thereof.

Still another object of the present invention is a pocket spring assembly comprising: an intermediate member stacked on top of the pocket spring assembly; Another pocket spring assembly stacked on top of the intermediate member; And an upper closure member stacked on the upper portion of the pocket spring assembly, a lower closure member positioned below the pocket spring assembly, and a side surface connecting the upper closure member and the lower closure member, Wherein the mattress is made of a finishing material having a finishing member.

Still another object of the present invention is achieved by a mattress for a bed in which a pillow top mattress in which a pocket spring assembly is housed in an upper portion or a lower portion of the main mattress by a known pillow top method is laminated.

Still another object of the present invention is to provide a coil spring assembly, An intermediate member stacked on top of the coil spring assembly; One pocket spring assembly stacked on top of the intermediate member; And an upper closure member disposed on the upper portion of the pocket spring assembly, a lower closure member positioned below the coil spring assembly, and a lower closure member surrounding the side surfaces of the coil spring assembly and the pocket spring assembly, And a finishing member having a side closing member for connecting the members.

According to the present invention, by varying diameters of the adjacent windings wound in a coil shape when the coil spring is manufactured, even when an impact is applied to the upper portion of the mattress, the windings constituting the coil spring do not contact with each other, The number of windings of the coil spring is formed to be four to six, thereby enhancing the elasticity of the coil spring.

Also, according to the present invention, a pocket spring assembly is manufactured by attaching a plurality of coil springs to a nonwoven fabric or a soft soft plastic material one by one or all at once, and wrapping the same, thereby shortening the mattress manufacturing process and reducing manufacturing cost There is an effect.

1A, 1B, 1C and 1D are perspective views of coil springs according to first to fourth embodiments of the present invention.
2 is a perspective view of an exploded view of a pocket spring assembly according to the present invention.
FIGS. 3A, 3B, and 3C are perspective views showing various examples of a pocket spring assembly including coil springs each having four, five, and six coil springs according to the present invention.
4A to 4C are process drawings showing a first embodiment of a method of manufacturing a pocket spring assembly according to the present invention.
5A to 5D are process drawings showing a second embodiment of a method of manufacturing a pocket spring assembly according to the present invention.
6A and 6B are views showing a mattress according to the present invention.
7A and 7B are views showing still another type of mattress according to the present invention.
8A to 8F are views for explaining a manufacturing process of a pill-top bed mattress according to the present invention.
9 is a cross-sectional view showing another embodiment of a mattress for a bed according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A is a perspective view of a coil spring according to a first embodiment of the present invention.

Referring to FIG. 1A, a coil spring 10 according to a first embodiment of the present invention is a coil spring 10 in which a coil 11 is wound in a coil shape four turns so that the diameter of the coil 11 gradually increases downward It is wound.

The winding 11 is wound at a distance of 1 to 2 times the diameter of the windings of the upper or lower adjacent windings so that contact with the adjacent windings can be prevented when the load is applied at the upper portion and is compressed.

In addition, the winding 11 is wound horizontally by a length corresponding to a length in which the upper end portion 13 and the lower end portion 12 are wound by 3/4 to 1 turn so that the position is changed even to external factors such as a load being applied at the upper portion Do not.

The upper end 13 and the lower end 12 of the winding 11 are bent in parallel to the horizontal plane or the upper end 13 of the winding 11 is bent downward and the lower end 12 of the winding 11 is bent upward It is possible to prevent damage to the nonwoven fabric, the soft plastic material, the finishing member, and the like surrounding the coil spring 10 during the compression expansion of the coil spring.

FIG. 2 is a perspective view of a pocket spring assembly according to the present invention, and FIG. 3A is a perspective view showing a pocket spring assembly according to the present invention.

2 and 3A, a pocket spring assembly 100 according to a first embodiment of the present invention includes a lower nonwoven fabric 20 or a flexible plastic material and a lower nonwoven fabric 20 or a flexible plastic material A plurality of coil springs 10 as shown in FIG. 1A and a plurality of coil springs 10 are disposed on the upper side of the coil springs 10 so as to cover each of the coil springs 10 while being thermally adhered to the lower nonwoven fabric 20 or a soft plastic material, The upper nonwoven fabric 30 or the soft plastic material.

The lower nonwoven fabric 20 or the soft plastic material has a coupling groove 21 corresponding to the arrangement position of the coil spring 10 so that when the coil spring 20 is manually arranged, The lower nonwoven fabric 20 or the soft plastic material may be formed on the flat surface without the coupling recesses 21. In this case,

The lower nonwoven fabric 20 or the upper nonwoven fabric 30 or the soft plastic material is adhered to one side of the coil spring 10 along the periphery of the lower side of the coil spring 10 by thermal bonding or hot melt bonding, A plurality of pocket springs in which the coil springs 10 are housed are assembled into one assembly.

4A to 4C are process drawings showing a first embodiment of a method of manufacturing a pocket spring assembly according to the present invention.

Referring to Figs. 4A to 4C, a lower nonwoven fabric 20 or a soft plastic material having a size corresponding to a pocket spring assembly to be manufactured is automatically or manually put on a work table, as shown in Fig. 4A.

After the lower nonwoven fabric 20 or the soft plastic material is put into the workbench, a plurality of coil springs 10 as shown in Fig. 1A are automatically put into the lower nonwoven fabric 20 either manually or manually by mechanical work, (20) or on a soft plastic material at regular intervals.

After the upper nonwoven fabric 20 or the soft plastic material is automatically or manually inserted into the upper portion of the coil spring 10, the lower nonwoven fabric 20 or the soft nonwoven fabric 20 is wound around the respective coil springs 10 by an adhesive machine. The plastic material and the upper nonwoven fabric 30 or one or four places of the soft plastic material are adhered by thermal bonding or hot melt adhesive bonding method so that the plurality of pocket springs in which the coil springs are housed, Spring assembly.

6A and 6B are views of a mattress according to the present invention in which a pocket spring assembly 100 as shown in Figs. 3A to 3C is housed in a closure member 200. Fig.

6A and 6B, the mattress according to the present invention includes a pocket spring assembly 100 of one of the pocket spring assemblies shown in FIGS. 3A to 3C, and a pocket spring assembly 100 that surrounds the pocket spring assembly 100, And a closure member 200 having a top closure member 210 and a bottom closure member 220 that have been sewn.

The mattress according to the present invention is constructed by attaching a zipper to the closing member 200 so as to accommodate the pocket spring assembly 100 when sewing the outer edges of the upper and lower closing members 210 and 220 You may.

FIGS. 7A and 7B are views showing another type of mattress according to the present invention, in which two of the pocket spring assemblies 100 shown in FIGS. 3A to 3C are housed in the closing member 200. FIG.

Referring to FIGS. 7A and 7B, the mattress according to the present invention includes two of the pocket spring assemblies 100 shown in FIGS. 3A to 3C; An intermediate member 240 interposed between the two pocket spring assemblies 100 to minimize friction between the two pocket spring assemblies 100; An upper closure member 210 stacked on an upper portion of the upper pocket spring assembly 100 and a lower closure member 220 stacked on a lower portion of the lower pocket spring assembly 100, And a closure member 200 having a side closure member 230 connected to the upper closure member 210 and the lower closure member 220 while wrapping the sides of the two pocket spring assemblies 100.

8A to 8F are views showing a manufacturing process of a pillow top mattress according to the present invention. The pillow top mattress 800 (see FIG. 8A), in which a pocket spring assembly 100 according to the present invention is housed, ) Are stacked.

8A to 8F, a pill-top bed mattress according to the present invention includes a pillow top mattress 800 (see FIG. 8A) in which a pocket spring assembly 100 as shown in FIGS. 3A to 3C is housed, ) Are laminated, thereby doubling the elasticity of the mattress for a bed and providing comfort at the time of sleeping.

Hereinafter, a manufacturing process of the pill-top bed mattress will be described in detail with reference to FIGS. 8A to 8F.

8A, a main mattress cover 500 for a main mattress cover and a pillow top mattress cover 600 for a cover of the pillow top mattress 800 are cut and provided.

That is, the main mattress cover 500 is cut into one sheet so that the upper cover 501, the front cover 502 and the lower cover 503 of the main mattress can be formed at the same time, The cover 600 is also cut into one sheet so that the upper cover 601, the front cover 602 and the lower cover 603 of the pillow top mattress can be simultaneously formed.

At this time, the main mattress cover 500 and the pillow top mattress cover 600 are cut in the same width, and the length thereof is relatively changed depending on the height of the main mattress 900 and the height of the pillow top mattress 800 The pillow top mattress 800 with the lower height and the main mattress 900 with the higher height are stacked on the upper side of the main mattress cover 500. As can be understood from the following description of the process, Is longer than the pillow top mattress cover (600).

Next, as shown in FIG. 8B, the main mattress cover 500 and the pillow top mattress cover 600 are sewn together by sewing means to form a sewing line 700.

More specifically, the sewing line 700 is formed by sewing a surface to be the upper cover 501 of the main mattress cover 500 and a surface to be the lower cover 603 of the pillow top mattress cover 600 to each other The sewing line 700 is formed on the upper cover 501 of the main mattress cover 500 and the lower cover 603 of the pillow top mattress cover 600 so that the main mattress cover 500 and the pillow- (600) are integrally connected to each other.

8C, the coil spring assembly 300 is closely attached to the bottom surface of the upper cover 501 of the main mattress cover 500, and then the main mattress cover 500 is attached to the coil spring assembly 300 .

The upper cover 501 of the main mattress cover 500 is wound around the coil spring assembly 300 by continuously winding the main mattress cover 500 toward the front side and the bottom side of the coil spring assembly 300, The front cover 502 of the main mattress cover 500 is mounted on the front surface of the coil spring assembly 300 and the bottom cover 503 of the main mattress cover 500 is mounted on the bottom surface of the coil spring assembly 300 It is in close contact and wrapping state.

8D, the pocket spring assembly 100 according to the present invention is closely attached to the upper surface of the lower cover 603 of the pillow top mattress cover 600, and then the pillow top mattress cover 600, The pocket spring assembly 100 according to the present invention is wound.

More specifically, the pillow top mattress cover 600 is continuously wound toward the front side and the upper side of the pocket spring assembly 100 according to the present invention, so that the lower cover 603 of the pillow top mattress cover 600 The front cover 602 of the pillow top mattress cover 600 is disposed on the front surface of the pocket spring assembly 100 according to the present invention and the front cover 602 of the pillow top mattress cover 600 on the bottom surface of the pocket spring assembly 100 according to the present invention. The upper cover 601 is in close contact with the upper surface of the pocket spring assembly 100 according to the present invention and is in a wrapping state.

Next, as shown in FIG. 8E, a peripheral cover 530 having a side cover 531 of the main mattress 500 is provided, which is attached to the side surface of the coil spring assembly 300, The top end cover of the mattress cover 500 and the top end of the side cover 531 of the circumferential cover 530 are sealed with the sealing member 710 with respect to the edge of the front cover 502 and the bottom cover 503 .

The pillow top mattress cover 600 is provided with a peripheral cover 630 which is to be a side cover 631 of the pillow top mattress 800. The pillow top mattress cover 600 is attached to the side surface of the pocket spring assembly 100 according to the present invention, The edge portions of the top cover 601 and the front cover 602 and the bottom cover 603 and the top and bottom ends of the side cover 631 of the peripheral cover 630 are sealed together with the sealing member 710. [

At this time, a zipper may be attached to the peripheral cover 630 of the pillow top mattress 800 so that the pocket spring assembly 100 can be received.

The sewing process of the peripheral cover 530 of the main mattress 900 may be performed immediately after the coil spring assembly 300 is wrapped around the main mattress cover 500. Similarly, It is a matter of course that the sealing process of the peripheral cover 630 of the present invention can be performed immediately after the pocket spring assembly 100 according to the present invention is wound around the pillow top mattress cover 600.

When the above process is completed, a bed mattress in which a main mattress 900 and a pillow top mattress 800 are stacked is finally completed, as shown in FIG. 8F.

As shown in FIG. 8F, it can be seen that the seal material line is excluded from the front side of the main mattress cover 500 and the upper side of the front side of the pillow top mattress cover 600, As described above, folding lines and sewing lines formed on the upper wing portion and the lower wing portion and the like are eliminated, and the appearance of the bed mattress can be improved more beautifully.

In addition, since the sealing member line convexly protruding from the front side of the main mattress cover 500 and the upper and lower portions of the front side of the pillow-top mattress cover 600 is excluded, the user can ascend or descend through the front side of the mattress The user can feel more comfortable and soft feeling because the seal member is not caught on the body part when the user sits down or when the user sits.

9 is a cross-sectional view showing another embodiment of a mattress for a bed according to the present invention, showing a mattress for a bed in which a pocket spring assembly 100 as shown in Figs. 3A to 3C is laminated on a known coil spring assembly 300. Fig.

9, a mattress according to the present invention includes a known coil spring assembly 300; A pocket spring assembly 100 of one of the pocket spring assemblies shown in Figures 3A-3C; An intermediate member 240 interposed between the coil spring assembly 300 and the pocket spring assembly 100 to minimize friction between the coil spring assembly 300 and the pocket spring assembly 100; An upper closure member 210 stacked on the upper portion of the pocket spring assembly 100 and a lower closure member 220 stacked on the lower portion of a known coil spring assembly 300, And a closure member 200 having a spring assembly 300 and a side closure member 230 surrounding the sides of the pocket spring assembly 100 and connected to the upper closure member 210 and the lower closure member 220 .

FIGS. 1B and 1C show another embodiment of the coil spring according to the second and third embodiments of the present invention. In the coil spring 10 of the second and third embodiments, as the winding 11 goes downward, Gradually increased to 5 and 6 revolutions. The configuration except for the number of revolutions is the same as that of the first embodiment in Fig.

Of course, the coil springs of the second and third embodiments may have the number of turns of the windings exceeding 6 rotations depending on the application. Particularly, as shown in FIG. 1D, the upper end portion 13 and the lower end portion 12 of the coil spring 10 may be horizontally formed without being bent.

FIGS. 3B and 3C illustrate a pocket spring assembly 100 according to the second and third embodiments of the present invention. The pocket spring assembly 100 of the second and third embodiments is similar to the pocket spring assembly 100 of FIGS. 1B and 1C , And the coil 10 is wound by 5 turns and 6 turns while gradually increasing in diameter as the winding goes down. The configuration except for the number of revolutions of the coil spring 10 is the same as that of the first embodiment shown in Figs. 2 and 3A.

Needless to say, the pocket spring assemblies of the second and third embodiments may be bonded to the coil spring 10 along the periphery of the coil spring 10 by thermal bonding or hot-melt adhesive bonding, in addition to one to four or more points.

5A to 5D are process drawings showing a second embodiment of a method of manufacturing a pocket spring assembly according to the present invention.

5A to 5D, a lower nonwoven fabric 20 or a soft plastic material having a size corresponding to a pocket spring assembly to be manufactured is automatically or manually inserted on a workbench as shown in FIG. 5A.

After the lower nonwoven fabric 20 or the soft plastic material is put into the workbench, a plurality of coil springs 10 as shown in any one of Figs. 1A to 1C are automatically inserted one by one or by hand, Are arranged in the first row at regular intervals on the nonwoven fabric (20) or the soft plastic material.

Subsequently, the upper nonwoven fabric 20 or the soft plastic material is automatically or manually inserted into the upper portion of the coil spring 10 of the first row, and then the respective coil springs 10 of the first row are thermally adhered or hot- The lower nonwoven fabric 20 or the soft plastic material and the upper nonwoven fabric 30 or the soft plastic material 1 to 4 are adhered along the periphery of the first nonwoven fabric 20 or the first nonwoven fabric 30 or the soft plastic material by thermal bonding or hot- A heat pocket spring is made.

Thereafter, a plurality of coil springs 10 are automatically and automatically inserted into the second nonwoven fabric 20 or the soft plastic material at regular intervals and then heat-sealed or hot- The lower nonwoven fabric 20 or the soft plastic material and the upper nonwoven fabric 30 or one to four places of the soft plastic material along the periphery of the respective coil springs 10 are adhered to each other by thermal bonding or hot- The second row of pocket springs in which the coil springs are housed is produced, as shown in Fig. 5C.

Each time the coil spring 10 is inserted into the third, fourth, fifth, and so on, the lower nonwoven fabric 20 is wound around the periphery of each coil spring 10 by a thermal bonding machine or a hot- Or the soft plastic material and the upper nonwoven fabric 30 or one to four places of the soft plastic material are repeatedly adhered by the thermal bonding or the hot melt bonding method. Therefore, as shown in FIG. 5D, A plurality of pocket springs are fabricated from a single pocket spring assembly.

Of course, the lower nonwoven fabric 20 of the pocket spring assembly or the soft plastic material and the upper nonwoven fabric 30 or the soft plastic material, as in the manufacturing process of Figs. 4A to 4C and Figs. 5A to 5D, 1 to 4 locations along the periphery of the coil spring 10 by thermal bonding or hot melt bonding, but not limited thereto, one to four or more locations may be thermally adhered or hot-melted to fix the coil spring 10 firmly Or may be bonded by an adhesion method.

In the embodiment of the mattress shown in FIGS. 7A and 7B, two pocket spring assemblies 100 are stacked on top and bottom. However, the present invention is not limited thereto, and three or more pocket spring assemblies 100 may be interposed between The intermediate member 240 may be laminated in a state in which the intermediate member 240 is inserted. In addition, although the stacked side surfaces of the two pocket spring assemblies 100 are described as being wrapped by the separate side closure member 240, the stacked pocket spring assembly 100 and the stacked pocket spring assembly 100, The upper closure member 210 and the lower closure member 220 may be packed together. 7A and FIG. 7B, the side closure member 230 is divided into four pieces. However, the present invention is not limited thereto. In another embodiment of the present invention, the entire side surface of the stacked pocket- A single side closure member 230 may be used.

8A to 8F, pillow top mattresses 800 are stacked on a known main mattress 900 on which a pocket spring assembly 100 according to the present invention is housed. The pillow top mattress 800 according to the present invention may be laminated on the lower portion of the known main mattress 900 or may be formed on the upper and lower portions of the known main mattress 900, A pillow top mattress 800 may be laminated.

In the embodiment of the bed mattress shown in FIG. 9, the pocket spring assembly 100 according to the present invention is stacked on the coil spring assembly 300. However, the present invention is not limited to this, The pocket spring assembly 100 according to the present invention may be stacked on both the top and bottom of the coil spring assembly 300. The pocket spring assembly 100 may be formed of a flexible material. Further, the present invention may be stacked with two or more pocket spring assemblies 100 according to the present invention at either the top, bottom, or both sides of the coil spring assembly 300.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

10: coil spring 11: winding
12: lower end portion 13: upper end portion
20: Lower nonwoven fabric or soft plastic material
30: Upper nonwoven or soft plastic material
21: coupling groove 100: pocket spring assembly
200: closing member 210: upper closing member
220: lower closure member 230: side closure member
240: intermediate member 300: coil spring assembly
500: Main mattress cover 501: Upper cover of main mattress
502: front cover of main mattress 503: bottom cover of main mattress
530: Perimeter cover of the main mattress 531: Side cover of the main mattress
600: cover of pillow top mattress 601: upper cover of pillow top mattress
602: Front cover of pillow top mattress 603: Side cover of pillow top mattress
630: Perimeter cover of pillow top mattress 631: Side cover of pillow top mattress
700: sewing line 710: sealing member
800: pillow top mattress 900: main mattress

Claims (21)

The winding 11 is wound in a coil shape,
The winding 11 is wound so as to gradually increase its diameter toward the lower side with a distance of 1 to 2 times the diameter of the winding wire from the upper or lower adjacent winding wire,
Characterized in that the number of revolutions of the winding (11) is 4 to 6 times. delete The method according to claim 1,
Wherein an upper end portion (13) and a lower end portion (12) of the winding (11) are wound in a length of 3/4 to 1 rotation and are horizontal by the length. The method according to claim 1,
The upper end portion 13 and the lower end portion 12 of the winding 11 are bent in parallel to the horizontal plane or the upper end portion 13 of the winding 11 is bent downward and the lower end portion 12 of the winding 11 is bent Wherein the coil spring is bent upward. delete A lower nonwoven fabric 20 of flat surface or a soft plastic material;
The plurality of coil springs (10) of claim 1 arranged on the lower nonwoven fabric (20) or on a soft plastic material at regular intervals. And
A plurality of coil springs 10 are disposed on upper portions of the coil springs 10 so as to surround each of the coil springs 10 and corresponding portions between the adjacent coil springs 10 and edge portions of the lower nonwoven fabric 20, A top nonwoven fabric (30) or a soft plastic material bonded to the plastic material by thermal bonding or hot melt bonding. The method according to claim 6,
Characterized in that the lower nonwoven fabric (20) or the soft plastic material has a coupling groove (21) corresponding to the arrangement position of the coil spring (10). The method according to claim 6,
Wherein the upper nonwoven fabric (30) or the soft plastic material is bonded to the lower nonwoven fabric (20) or the soft plastic material by thermal bonding or hot melt bonding. A first feeding step of feeding a lower nonwoven fabric (20) or a soft plastic material onto a workbench;
Arranging a plurality of coil springs (10) on the lower nonwoven fabric (20) or on a soft plastic material;
A second feeding step of feeding the upper nonwoven fabric 20 or the soft plastic material to the upper portion of the coil spring 10; And
The upper nonwoven fabric 30 or the soft plastic material is wrapped around the coil springs 10 and the upper nonwoven fabric 30 or the soft plastic material To the lower nonwoven fabric (20) or to a soft plastic material by thermal bonding or hot melt adhesive bonding. 10. The method of claim 9,
The method of claim 1, wherein the coil spring (10) is a coil spring of any one of claims 1, 3, and 4. 10. The method of claim 9,
Wherein in the arranging step, the coil springs (10) are individually arranged on the top of the lower nonwoven (20) or soft plastic material, or are automatically arranged at a time. 10. The method of claim 9,
In the adhering step, the upper nonwoven fabric (30) or the soft plastic material is bonded to the lower nonwoven fabric (20) or the soft plastic material by thermal bonding or hot melt adhesive bonding method. , A method of manufacturing a pocket spring assembly. 10. The method of claim 9,
The lower nonwoven fabric 20 or the soft plastic material and the upper nonwoven fabric 30 or the soft plastic material may be applied to the lower nonwoven fabric 20 or the soft plastic material every time the coil springs 10 are arranged in a row The coil spring 10 is attached to the lower nonwoven fabric 20 or the soft plastic material sequentially by heat bonding or hot melt bonding method along the periphery of the coil spring 10, Is adhered to the periphery of the spring (10) at one time in a thermal bonding or hot melt bonding manner. 9. A pocket spring assembly (100) as claimed in any one of claims 6 to 8; And
An upper and a lower closing member 210 and a lower closing member 220 are vertically stacked to receive the pocket spring assembly 100 to enclose the pocket spring assembly 100,
≪ / RTI > 15. The method of claim 14,
A zipper is attached to the closure member (200) to allow the pocket spring assembly (100) to be received. 15. The method of claim 14,
Characterized in that the other pocket spring assembly (100) is stacked on the pocket spring assembly (100) with one intermediate member (240) therebetween. A pillow top mattress (800) stacked with a pocket spring assembly (100) according to any one of claims 6 to 8 housed in a top or bottom of the main mattress (900) by a known pillow top method. 18. The method of claim 17,
Wherein the perimeter cover (630) of the pillow top mattress (800) is equipped with a zipper so that the pocket spring assembly (100) can be received. A known coil spring assembly 300;
An intermediate member (240) stacked on top of the coil spring assembly (300);
The pocket spring assembly (100) of any one of claims 6 to 8, laminated on top of the intermediate member (230); And
An upper closure member 210 stacked on top of the pocket spring assembly 100 and a lower closure member 220 positioned below the coil spring assembly 300 and the coil spring assembly 300 and the pocket spring 300. [ And a finishing material (200) having a side closure member (230) for covering the side surface of the assembly (100) and connecting the upper closure member (210) and the lower closure member (220). delete 20. The method of claim 19,
The pocket spring assembly 100 may be stacked on the bottom of the coil spring assembly 300 or stacked on both the top and bottom of the coil spring assembly 300 or the pocket spring assembly 100 may be stacked on top of the coil spring assembly 300, Wherein at least two layers are stacked on the upper, lower, or upper and lower portions of the assembly (300).

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