WO2022249887A1 - Mattress, manufacturing method, and disposal method - Google Patents
Mattress, manufacturing method, and disposal method Download PDFInfo
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- WO2022249887A1 WO2022249887A1 PCT/JP2022/019970 JP2022019970W WO2022249887A1 WO 2022249887 A1 WO2022249887 A1 WO 2022249887A1 JP 2022019970 W JP2022019970 W JP 2022019970W WO 2022249887 A1 WO2022249887 A1 WO 2022249887A1
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- Prior art keywords
- cloth
- nonwoven fabric
- perforations
- mattress
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- 238000000034 method Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000004744 fabric Substances 0.000 claims abstract description 79
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims 2
- 239000004745 nonwoven fabric Substances 0.000 description 187
- 239000000853 adhesive Substances 0.000 description 21
- 230000001070 adhesive effect Effects 0.000 description 21
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 18
- 238000010586 diagram Methods 0.000 description 16
- 229920000742 Cotton Polymers 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/045—Attachment of spring inlays to coverings; Use of stiffening sheets, lattices or grids in, on, or under spring inlays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/07—Attaching, or interconnecting of, springs in spring inlays
Definitions
- This disclosure relates to mattresses, manufacturing methods, and disposal methods.
- a mattress that realizes a pocket coil by housing a coil spring in a bag-like body that forms a pocket space is known.
- the sides of the bag-shaped bodies prepared separately for each coil spring are adhered to each other, perforations are provided in the direction of the waist of each bag-shaped body, and the upper surface of the bag-shaped body is the mounting unit.
- a technique of adhering to the lower surface with an adhesive is known (see Patent Document 1, for example). In this technique, by pulling the mounting unit upward, the perforations of the bag-shaped body are broken and the entire upper surface of each bag-shaped body is opened, making it possible to easily take out the coil spring.
- an object of the present disclosure is to form a plurality of pocket spaces in a mattress without cutting from a single piece of cloth, and to provide perforations in the cloth that facilitate opening the plurality of pocket spaces. do.
- a mattress having pocketed coils comprising: a coil spring forming the pocket coil; a first cloth forming a pocket space for accommodating the coil spring; a second cloth extending in a plane so as to cover the entire pocket space;
- the first cloth is provided one by one for each row of the pocket spaces,
- the first cloth has perforations continuous in a first direction on both sides with respect to the center of the plurality of pocket spaces,
- the second cloth is fixed to a portion between the two perforations in the first cloth, the portion between the two perforations in a second direction crossing the first direction.
- a mattress is provided wherein the perforation is formed to break by pulling the portion of the first fabric away from the pocket space.
- the mattress it is possible to form a plurality of pocket spaces without cutting from a single piece of cloth, and to provide the cloth with perforations that facilitate opening the plurality of pocket spaces. Become.
- FIG. 4 is a schematic diagram of a cross-sectional structure of a mattress according to another embodiment;
- FIG. 4 is a top view schematically showing an arrangement mode of coil springs in a spring coil layer;
- FIG. 4 is an explanatory diagram of a nonwoven fabric that forms pocket spaces in which coil springs are accommodated;
- FIG. 4 is an explanatory diagram of a nonwoven fabric that forms pocket spaces in which coil springs are accommodated; It is explanatory drawing of a roll-shaped nonwoven fabric.
- FIG. 4 is a schematic diagram of a cross-sectional structure of a mattress according to another embodiment;
- FIG. 4 is a top view schematically showing an arrangement mode of coil springs in a spring coil layer;
- FIG. 4 is an explanatory diagram of a nonwoven fabric that forms pocket spaces in which coil springs are accommodated;
- FIG. 4 is an explanatory diagram of a nonwoven fabric that forms pocket spaces in which coil springs are accommodated;
- It is explanatory drawing of a roll
- FIG. 4 is a plan view of a nonwoven fabric forming pocket spaces in which each of a plurality of coil springs in one row is accommodated;
- FIG. 2 is an explanatory diagram of a method of forming pocket spaces from the nonwoven fabric according to Example 1;
- FIG. 2 is a side view of three pocket spaces extracted from among a plurality of pocket spaces in one row according to the first embodiment and viewed in the Y direction.
- 3 is a side view of three pocket spaces extracted from among a plurality of pocket spaces in one row and viewed in the X direction.
- FIG. FIG. 8 is a schematic cross-sectional view along line AA in FIG. 7;
- FIG. 8 is a schematic cross-sectional view along line BB in FIG.
- FIG. 7 It is an explanatory view of the disposal method, and is a perspective view showing a state in which the upper portion of the pocket space is open.
- FIG. 10 is a side view of three pocket spaces extracted from among a plurality of pocket spaces in one row of the mattress according to Example 2 and viewed in the Y direction.
- FIG. 10 is a side view of three pocket spaces extracted from among a plurality of pocket spaces in one row of the mattress according to Example 2 and viewed in the X direction.
- FIG. 4 is a perspective view of the pocket coil layer as viewed from below;
- FIG. 4 is an explanatory diagram of the arrangement of cuts;
- FIG. 11 is an explanatory diagram (part 1) of a method of discarding a mattress according to Example 2;
- FIG. 11 is an explanatory diagram (part 2) of a method of discarding a mattress according to Example 2;
- one piece of cloth such as nonwoven fabric means one piece (piece) in a product state, and is a concept including a multi-layer structure as long as the layers are integrated.
- FIG. 1 is a perspective view showing how the mattress 20 is used.
- the X, Y and Z axes are defined in a right-handed coordinate system.
- the up-down direction (Z direction) is based on the state of use of the mattress 20 .
- the mattress 20 is bedding and is placed on the bed frame 7 for use.
- the mattress 20 can be changed up and down, but the upper and lower sides of the mattress 20 are based on the state shown in FIG. 1 unless otherwise specified.
- logos or the like may be applied to the sides of the mattress to make the top side clear to the user.
- FIG. 2 is an explanatory diagram of the cross-sectional structure of the mattress 20 and a schematic diagram of the cross-sectional structure of the mattress 20.
- FIG. FIG. 3 is a schematic top view showing the arrangement of the coil springs 223a and 223b in the spring coil layer 223. As shown in FIG. FIG. 3 defines an X direction (an example of a first direction) and a Y direction (an example of a second direction) similar to those in FIG. 1, where the longitudinal direction of the mattress 20 corresponds to the X direction.
- the mattress 20 includes a quilting portion 21 (hereinafter also referred to as an "upper quilting portion 21" for distinction), a padding portion 22, and a quilting portion 23 (hereinafter also referred to as a "lower quilting portion 21" for distinction). quilting portion 23”).
- the upper quilting part 21 consists of surface fabric 211, artificial cotton 212, soft urethane 213, and nonwoven fabric 214 from the top.
- the configuration of the upper quilting portion 21 is not limited to this, and other materials may be added or some materials may be omitted.
- the surface fabric 211 may be, for example, a knitted fabric having antibacterial, deodorant, and antimite functions.
- the surface fabric 211 preferably has a density of 180 g/m 2 or more.
- the surface fabric 211 may have a thickness of 1 mm, for example.
- Synthetic cotton 212 may, for example, have a density of about 140 g/m 2 . Also, the artificial cotton 212 may have a thickness of 10 mm, for example.
- the soft urethane 213 may have a density of D28, for example. Also, the soft urethane 213 may have a thickness of 15 mm, for example.
- the nonwoven fabric 214 may, for example, have a density of about 40 g/m 2 . Also, the nonwoven fabric 214 may have a thickness of 0.25 mm, for example.
- the stuffing part 22 consists of a nonwoven fabric 220, a soft urethane 221, a nonwoven fabric 222, a spring coil layer 223, a nonwoven fabric 224, a soft urethane 225, and a nonwoven fabric 226 from above.
- the non-woven fabric 220 may, for example, have a density of about 40 g/m 2 . Also, the nonwoven fabric 220 may have a thickness of 0.25 mm, for example.
- the soft urethane 221 may have a density of D21, for example. Also, the soft urethane 221 may have a thickness of 20 mm, for example. The soft urethane 221 may have an uneven top surface. This improves the body pressure dispersion value.
- Nonwoven fabric 222 may, for example, have a density of about 80 g/m 2 . Also, the nonwoven fabric 222 may have a thickness of 0.25 mm, for example.
- a plurality of coil springs 223a and 223b forming pocket coils are arranged in parallel.
- Each row of the coil springs 223a, 223b extends in the longitudinal direction (X direction) of the mattress 20 and contacts each other in the lateral direction (Y direction) of the mattress 20.
- the number of coil springs 223a, 223b in each row may be the same.
- a plurality of coil springs 223a may be arranged in an alternate arrangement.
- the third to fifth rows are composed of a plurality of coil springs.
- 223a and the other row is composed of a plurality of coil springs 223b.
- one or three more types of coil springs may be used.
- the coil spring 223a forming the spring coil layer 223 has a wire diameter (steel wire diameter) of 1.8 mm and a coil diameter of 62 mm.
- the coil spring 223a forming the spring coil layer 223 has 5 turns, a free coil height of 170 mm, and a pocket height of 100 mm.
- Each coil spring 223a may be, for example, a lantern shape.
- the coil spring 223b forming the spring coil layer 223 has a wire diameter (steel wire diameter) of 2.2 mm and a coil diameter of 62 mm.
- the coil spring 223b forming the spring coil layer 223 has 5.5 turns, a free coil height of 140 mm, and a pocket height of 100 mm.
- Each coil spring 223b may be, for example, a lantern shape.
- the nonwoven fabric 224 may, for example, have a density of about 80 g/m 2 . Also, the nonwoven fabric 224 may have a thickness of 0.25 mm, for example.
- the soft urethane 225 may have a density of D21, for example. Also, the soft urethane 225 may have a thickness of 15 mm, for example.
- the nonwoven fabric 226 may, for example, have a density of about 40 g/m 2 . Also, the nonwoven fabric 226 may have a thickness of 0.25 mm, for example.
- the lower quilting part 23 consists of nonwoven fabric 231, soft urethane 232, artificial cotton 233, and surface fabric 234 from the top.
- the configuration of the lower quilting portion 23 is not limited to this, and other materials may be added or some materials may be omitted.
- the non-woven fabric 231 may, for example, have a density of about 40 g/m 2 . Moreover, the nonwoven fabric 231 may have a thickness of 0.25 mm, for example.
- the soft urethane 232 may have a density of D28, for example. Also, the soft urethane 232 may have a thickness of 15 mm, for example.
- Synthetic cotton 233 may, for example, have a density of about 140 g/m 2 . Also, the artificial cotton 233 may have a thickness of 10 mm, for example.
- the surface fabric 234 may be, for example, a knitted fabric having antibacterial, deodorant, and antimite functions.
- the face fabric 234 preferably has a density of 180 g/m 2 or higher.
- the surface fabric 234 may be, for example, 1 mm thick.
- FIG. 2 shows the mattress 20 having a specific configuration
- the mattress 20 may have any configuration as long as it has the spring coil layer 223 and the spring coil layer 223 has the configuration described later.
- it may be a mattress 20A configured as shown in FIG. 2A.
- a needle punch 232A or the like is used instead of the soft urethane 232.
- Such a mattress 20A is suitable for a mode of use in which the vertical direction cannot be changed (that is, a mode of use in which the positive side in the Z direction is always the upper side).
- FIGS. 4A to 4C are explanatory diagrams of the nonwoven fabric 250 (an example of the first fabric) forming the pocket space S1 in which each of the coil springs 223a is accommodated.
- the nonwoven fabric 250 may be formed from a plurality of rectangular nonwoven fabric sheets 25 when unfolded.
- the perforations 252 of the nonwoven fabric 250 are formed by the perforation forming blades 400 (only one is shown in FIG. 4A) when the nonwoven fabric sheet 25 wound in a roll is unwound. may be formed by Two perforations 252 are formed in parallel, as shown in FIG. 4A.
- the perforation forming blade 400 may have a blade length of, for example, about 3 mm, and the blades may be arranged periodically at intervals of 1 mm along the circumferential direction.
- the nonwoven fabric 250 having the perforations 252 thus formed may be wound into a roll and managed as shown in FIG. 4C.
- the roll direction of the nonwoven fabric sheet 25 may correspond to the X direction shown in FIG. 3 and the like.
- the nonwoven fabric 250 is formed by cutting a single nonwoven fabric sheet 25 for forming a plurality of nonwoven fabrics 250 and simultaneously making perforations 252 . , may be formed. Such cuts and provision of perforations 252 may be realized when unwinding the nonwoven fabric sheet 25 wound into a roll. As a result, an efficient manufacturing process can be realized as compared with the case where the process of forming the perforations 252 is provided separately. Note that when one nonwoven fabric sheet 25 for forming a plurality of nonwoven fabrics 250 is cut into a plurality of sheets, only the cutting along the X direction corresponding to the unwinding direction is realized, and the cutting along the Y direction is realized. Cuts (cross cuts) may be performed separately.
- FIG. 4B schematically shows perforations 252 and cut lines 253 formed on one nonwoven fabric sheet 25 for forming four nonwoven fabrics 250 .
- the nonwoven fabric 250 that has been cut and formed with perforations 252 may be wound into a roll and managed or transported, as shown in FIG. 4C.
- each of the non-woven fabrics 250 may be formed by cutting along the Y-direction for each length along the X-direction.
- FIG. 5 is a plan view of a nonwoven fabric 250 forming pocket spaces S1 in which a plurality of coil springs 223a in one row (eleven coil springs 223a in FIG. 3) are accommodated.
- FIG. 5 shows the unfolded nonwoven fabric 250 before forming the pocket space S1.
- the dashed-dotted line L1 represents the centerline of the nonwoven fabric 250 in the Y direction, and the hatched portions at the upper and lower ends correspond to welded portions 258, which will be described later.
- 6A and 6B are explanatory diagrams of a method of forming the pocket space S1 from the nonwoven fabric 250.
- FIG. 7 is a side view of three pocket spaces S1 extracted from one row of a plurality of pocket spaces S1 and viewed in the Y direction. 7 schematically shows the coil spring 223a in the pocket space S1 formed by the nonwoven fabric 250 for explanation purposes.
- the welding portions 256 and 258 and the adhesives 80, 82 and 84 are schematically indicated by hatching.
- FIG. 8 is a side view of three rows of pocket spaces S1 that are adjacent in the Y direction and viewed in the X direction.
- FIG. 8 also schematically shows the coil spring 223a in the pocket space S1 formed by the nonwoven fabric 250 for explanation.
- FIG. 7 and 8 also show the nonwoven fabrics 222, 224 on the upper and lower sides of the pocket space S1.
- 9 is a schematic cross-sectional view along line AA of FIG. 7
- FIG. 10 is a schematic cross-sectional view along line BB of FIG. Line BB in FIG. 7 is shown slightly shifted from perforation 252 for the sake of explanation, but it is a line along perforation 252 .
- FIG. 11 is an explanatory diagram of the disposal method, and is a perspective view showing a state in which the upper portion of the pocket space S1 is open.
- the nonwoven fabric 250 has two perforations 252 parallel to the X direction, as shown in FIG.
- the distance between the perforations 252 in the Y direction is a predetermined interval corresponding to the size of the pocket space S1. is also significantly larger.
- each row of coil spring assemblies an assembly consisting of the nonwoven fabric 250 and the coil springs 223a integrated by the welded portions 256 and 258), one row is formed as schematically shown in FIG. All the coil springs 223a are set so that the coil central axis is perpendicular to the surface between the perforations 252 in the single nonwoven fabric 250 . At this time, each coil spring 223a is arranged such that a line segment connecting the coil center axes of each coil spring 223a (see one-dot chain line L2 in FIG. 6) is substantially the center between the two perforations 252 (the center in the Y direction). It is positioned with respect to a sheet of nonwoven fabric 250 so as to be.
- the nonwoven fabric 250 is folded back so that both ends of the nonwoven fabric 250 in the Y direction overlap each other, so that the plurality of coil springs 223a are wrapped in the nonwoven fabric 250.
- the two perforations 252 continuous in the X direction are positioned on both sides of the plurality of coil springs 223a in the Y direction.
- both ends of the nonwoven fabric 250 in the Y direction are welded together to form welded portions 258 .
- the nonwoven fabric 250 associated with one row has a welded portion 258 (an example of a second welded portion) that joins the ends to each other on one Y-direction side of each of the pocket spaces S1 associated with one row.
- a welded portion 256 (an example of a first welded portion) is formed in a mode that partitions the pocket spaces S1 related to the coil springs 223a that are adjacent in the X direction. Note that the welded portions 256 may also be formed at both ends in the X direction of the nonwoven fabric 250 associated with one row. In the example shown in FIG.
- the welded portions 256 are welded as the welded portions 256 in the nonwoven fabric 250 as indicated by 256-1 to 256-3.
- one welded portion 256 is formed by welding the paired portions 256-1 together
- another welded portion 256 is formed by welding the paired portions 256-2 together.
- a pair of points 256-3 are welded together to form yet another welded portion 256. As shown in FIG.
- each row of coil spring assemblies thus formed (an assembly consisting of the non-woven fabric 250 and the coil springs 223a integrated by the welded portions 256 and 258) are separated from each other in the Y direction as shown in FIG. are joined by an adhesive 80 . 7 and 8, each row of coil spring assemblies is bonded by an adhesive 82 to an upper nonwoven fabric 222 extending in the XY plane, and a lower nonwoven fabric 222 extending in the XY plane. It is joined by an adhesive 84 to the nonwoven fabric 224 on the side.
- the nonwoven fabric 222 is common to all the coil springs 223a and 223b in one mattress 20, and is adhered (fixed) to the nonwoven fabric 250 forming the pocket spaces S1 of each row.
- nonwoven fabric 222 By providing such a nonwoven fabric 222, even when a local load (external load) in a direction perpendicular to the surface of the mattress 20 is applied between the pocket spaces S1, local sinking ( It is possible to prevent the slipping into between the pocket spaces S1. This also applies to the nonwoven fabric 224 .
- one sheet of nonwoven fabric 250 is used for each row to form the pocket spaces S1 in each row. Therefore, the nonwoven fabric 250 is cut and formed for each pocket space S1. No need, productivity is greatly improved.
- the nonwoven fabric 250 associated with one row has perforations 252 continuous in the X direction on both sides of each pocket space S1 associated with one row in the Y direction.
- the two perforations 252 are positioned substantially at approximately the same height, and are continuous in the X direction in a manner surrounding each coil spring 223a when viewed from above.
- the perforations 252 are formed at a pitch that does not break due to the repulsive force of each coil spring 223a.
- the perforations 252 are formed by periodically arranging holes having a length of about 3 mm in the X direction at intervals of 1 mm (that is, a pitch of 4 mm).
- the nonwoven fabric 222 is adhered to the nonwoven fabric 250 by the adhesive 82, the nonwoven fabric 222 is pulled against the spring coil layer 223 in the direction of peeling off from the spring coil layer 223 when the mattress 20 is discarded.
- a large force (significantly larger force than the repulsive force of each coil spring 223a) is applied to the perforations 252 of the nonwoven fabric 250 .
- the perforations 252 in each row are continuously broken. In this way, the perforations 252 are broken by pulling the portion between the two perforations 252 in the Y direction in the nonwoven fabric 250 upward (that is, in the direction away from the pocket space S1).
- each pocket space S1 (above the perforation 252) can be easily opened to the pocket space S1 of each row (see FIG. 11).
- the nonwoven fabric 222 is peeled off from the spring coil layer 223, thereby breaking the perforations 252 of the nonwoven fabric 250 and opening the upper side of each pocket space S1. It is also simply called "non-woven fabric stripping work".
- the distance between the perforations 252 in the Y direction is greater than the outer diameter of the coil spring 223a. Therefore, when the coil spring 223a is accommodated in the pocket space S1, as shown in FIGS. 7 and 8, the perforations 252 are located below the uppermost winding 2231 of the coil spring 223a and above the coil spring 223a. It is formed above the lowermost winding 2232 of the coil spring 223a and above the center of the coil spring 223a in the axial direction.
- the distance ⁇ 1 of the perforations 252 from the upper surface of the pocket space S1 may be in the range of 12mm to 18mm.
- the perforations 252 are broken by pulling the nonwoven fabric 222 from the spring coil layer 223, the possibility that the part of the nonwoven fabric 250 above the perforations 252 is caught by the coil springs 223a is reduced.
- the perforations 252 are broken by pulling the nonwoven fabric 222 in the direction of peeling off the spring coil layer 223, if the portion of the nonwoven fabric 250 above the perforations 252 is caught by the coil spring 223a, the force pulling the nonwoven fabric 222 is reduced. A portion of the force is applied to the coil spring 223a, and the force required to break the perforations 252 increases accordingly.
- the perforation 252 can be broken with a relatively low force, and workability when opening the upper side of each pocket space S1 (that is, workability of peeling off the nonwoven fabric). can increase
- the distance between the perforations 252 in the Y direction is greater than the outer diameter of the coil spring 223a.
- the coil spring 223a can be easily taken out through the upper opening of the pocket space S1. That is, it is possible to improve workability when removing the coil spring 223a.
- the welded portion 256 is preferably formed along the vertical direction so as to terminate before the perforation 252 in the vertical direction, as shown in FIG.
- the welded portion 256 formed between the two pocket spaces S1 in the X direction is vertically divided into three, but the number may be larger, It may be a small number.
- the welded portion 256 formed between the two pocket spaces S1 in the X direction may be formed in a continuous manner in the vertical direction.
- the welded portion 256 that partitions the pocket space S1 in the X direction is arranged below the perforation 252. Therefore, when the perforated portion 252 is included in the welded portion 256 Workability in breaking the perforation 252 is improved compared to the case where the perforation 252 is welded to form 256). That is, since the range above the perforations 252 (the range in the vertical direction) is relatively narrow, if the perforations 252 are also welded above the perforations 252, the perforations 252 may be welded together in the Y direction.
- the range below the perforation 252 (the range in the vertical direction) is relatively wide, if only the area below the perforation 252 is welded, as shown in FIG.
- the possibility that the eyes 252 are welded to each other is low. That is, it is possible to reduce the possibility that the perforations 252 are welded together in the Y direction while ensuring the necessary welding range in the vertical direction. If the perforations 252 are welded together in the Y direction, the force required to continuously break the perforations 252 may be excessive. Therefore, according to this embodiment, it is possible to reduce the possibility that the force required to continuously break the perforations 252 will be excessive due to the welded portion 256 .
- the perforations 252 are located above the welding portions 258 that join the Y-direction ends of the nonwoven fabric 250, as schematically shown in FIG. This improves workability when breaking the perforations 252 compared to the case where the perforations 252 are included in the welded portion 258 (that is, the case where the perforations 252 are welded to form the welded portion 258). . That is, the force required for breaking can be appropriately reduced.
- one sheet of nonwoven fabric 250 is used for each row of pocket spaces S1 arranged in the X direction, but one sheet of nonwoven fabric 250 is used for each row of pocket spaces S1 arranged in the Y direction. good too.
- Such a configuration is a configuration obtained by replacing the X direction and the Y direction with the Y direction and the X direction in the description of FIG. 4A and subsequent figures (including the following description of FIG. 12 and subsequent figures). Substantially the same effect can be obtained in this case as well.
- FIG. 12 is an explanatory diagram of the cross-sectional structure of the mattress 20B according to this embodiment, and is a schematic diagram of the cross-sectional structure of the mattress 20B.
- FIG. 13 is a side view of three pocket spaces S1 extracted from a plurality of pocket spaces S1 in one row of the mattress 20B according to the present embodiment and viewed in the Y direction.
- FIG. 14 is a side view of three pocket spaces S1 extracted from a plurality of pocket spaces S1 in one row of the mattress 20B according to the present embodiment and viewed in the X direction.
- FIG. 13 is a side view of three pocket spaces S1 extracted from a plurality of pocket spaces S1 in one row of the mattress 20B according to the present embodiment and viewed in the X direction.
- FIG. 15 is a perspective view of a portion of the mattress 20B made up of the nonwoven fabric 224B, the spring coil layer 223B, and the nonwoven fabric 222 (hereinafter also referred to as "pocket coil layer 2") viewed from below.
- FIG. 16 is an explanatory view of the positions of the cuts 29 in the X direction with respect to the rows of pocket spaces S1 in the X direction.
- 29 is a diagram showing a top view together with a dotted line 290 indicating a line on which 29 is provided.
- the spring coil layer 223 is replaced with the spring coil layer 223B
- the non-woven fabric 224 is replaced with the non-woven fabric 224B (an example of the second fabric) with respect to the mattress 20A shown in FIG. 2A. Points are different.
- the nonwoven fabric to be peeled off from the spring coil layer 223B in the nonwoven fabric peeling operation is the nonwoven fabric 224B
- the nonwoven fabric to be peeled off from the spring coil layer 223B in the peeling operation is the nonwoven fabric 222. Different from the example.
- the spring coil layer 223B of this embodiment differs in the number of pocket spaces S1 (and the number of rows of pocket spaces S1) from the spring coil layer 223 of the above-described embodiment.
- This embodiment is suitable when the number of rows of the coil springs 223a (the number of rows related to rows arranged in the X direction) is relatively large.
- the spring coil layer 223B of this embodiment has 24 rows of pocket spaces S1, and each of the 24 rows includes 20 pocket spaces S1 arranged in the X direction.
- the perforation 252 is located below the uppermost winding 2231 of the coil spring 223a and the coil spring 223a, unlike the spring coil layer 223 of the above-described embodiment. It is formed above the lowermost winding 2232 of the coil spring 223a and deviated below the axial center of the coil spring 223a.
- the spring coil layer 223B of this embodiment has a configuration in which the configuration related to the nonwoven fabric 250 is upside down with respect to the spring coil layer 223 of the above-described embodiment.
- the nonwoven fabric 224B of this embodiment differs from the nonwoven fabric 224 of the first embodiment described above in that it has cuts 29 along the same X direction as the direction in which the perforations 252 extend.
- the cut 29 is formed in a continuous manner along the X direction.
- the cuts 29 may be in the form of perforations that do not separate the nonwoven fabrics 224B in the Y direction, but are preferably in the form of continuous cuts that separate the nonwoven fabrics 224B in the Y direction.
- the cut 29 is in the form of a continuous cut.
- the cuts 29 have the function of improving the workability of the nonwoven fabric peeling work described above. Specifically, since the nonwoven fabric 224B has the slits 29, it is not necessary to peel off the entire nonwoven fabric at once when peeling off the nonwoven fabric. In other words, the nonwoven fabric 224B can be peeled off for each region (section) separated by the cuts 29 . As a result, the peeling force does not become excessive, and the workability of the nonwoven fabric peeling work can be effectively improved. Further details of this feature are provided below. It should be noted that the nonwoven fabric 222 may not have cuts such as the cuts 29 .
- the cut 29 preferably extends from one side end to the other side end in the X direction, as shown in FIG. That is, the cuts 29 are formed in a manner that divides the nonwoven fabric 224B into a plurality of independent sections in the Y direction.
- the cut 29 may be formed so as to terminate before one of the ends in the X direction. That is, the cut 29 may terminate at one end of the nonwoven fabric 224B in the X direction, leaving a predetermined length.
- the cut 29 may be formed at one end of the nonwoven fabric 224B in the X direction so as to terminate on the one side in the X direction from the pocket space S1 on the farthest one side in the X direction.
- the predetermined length may be relatively small, for example, 20 mm or less.
- the number of cuts 29 may be one, but when the number of rows of pocket spaces S1 in the X direction is relatively large as in the present embodiment, preferably a plurality of cuts 29 are provided in a manner spaced apart from each other in the Y direction. That is, a plurality of cuts 29 may be formed parallel to each other along the X direction while being separated from each other in the Y direction.
- the interval between the cuts 29 adjacent in the Y direction is larger than the length of one row of the pocket spaces S1 in the X direction in the Y direction, that is, the outer diameter (diameter of the maximum portion) of the coil spring 223a.
- it is longer than the Y-direction length of two rows of the X-direction pocket spaces S1.
- the cut 29 is formed between two specific rows adjacent in the Y direction among the plurality of rows (rows of the pocket spaces S1 in the X direction) when viewed from above.
- a plurality of sets of specific two columns are periodically set in the Y direction. That is, the cuts 29 are formed at approximately equal intervals in the Y direction between the edges 255 on both sides in the Y direction, including the first cut 29 from the edge 255 .
- the cut 29 is provided every three rows and formed between two specific adjacent rows every three rows.
- the pitch of the cuts 29 in the Y direction may not be strictly constant. Therefore, regarding the distance between the cuts 29 in the Y direction, the term "substantially equal intervals" is a concept that allows for such an error.
- the nonwoven fabric 224B is substantially divided into eight separated regions (sections), forming eight rows in the X direction.
- one row of the nonwoven fabric 224B covers three rows of the pocket spaces S1 in the X direction.
- the manufacturing method of the mattress 20A according to this embodiment may be basically the same as the manufacturing method of the mattress 20 according to the first embodiment described above.
- the cuts 29 related to the nonwoven fabric 224B may be formed after the nonwoven fabric related to the nonwoven fabric 224B (nonwoven fabric without cuts 29) is fixed to the spring coil layer 223B with the adhesive 84.
- productivity can be improved compared to the case where the nonwoven fabrics 224B that have been cut in advance by the cuts 29 are individually fixed to the spring coil layers 223B.
- FIG. 17 and 18 are explanatory diagrams of the disposal method of the mattress 20B, and FIG. 17 shows the initial state S1700 of the disposal method and the execution state S1702 of the nonwoven fabric stripping work related to the first sheet of the nonwoven fabric 224B.
- the initial state S1700 and the execution state S1702 are perspective views of the pocket coil layer 2 (the portion made up of the nonwoven fabric 224B, the spring coil layer 223B, and the nonwoven fabric 222) of the mattress 20B as viewed from below.
- FIG. 18 shows a state S1704 in which the third nonwoven fabric 224B is peeled off, and a state S1706 in which the nonwoven fabric 224B is peeled off, as viewed from below in a perspective view similar to FIG.
- the method of discarding the mattress 20B is realized in substantially the same manner as the method of discarding the mattress 20 of the above-described embodiment. That is, the method of discarding the mattress 20B is the operation of tearing off the nonwoven fabric 224B from the spring coil layer 223B to break the perforations 252 of the nonwoven fabric 250 and open the upper side of each pocket space S1 (that is, the nonwoven fabric peeling work). and removing the coil springs 223a and 223b from the upper side of each open pocket space S1. Although these operations are performed manually, some or all of these operations may be performed by robots.
- the nonwoven fabric 224B has the cuts 29 in the X direction, thereby effectively improving the workability of the nonwoven fabric peeling work.
- the operator first removes portions other than the pocket coil layer 2 (such as the surface fabric 234A) from the mattress 20B to be discarded, leaving only the pocket coil layer 2, and then flips the pocket coil layer 2 upside down. to form an initial state S1700 in which the nonwoven fabric 224B of the pocket coil layer 2 is on the upper side.
- the worker pulls the endmost row of the nonwoven fabric 224B upward using the end cut 29 (see arrow R170).
- the operator repeats such work for each row of the nonwoven fabric 224B (see execution state S1704 in FIG. 18) to form a state S1706 in which all rows of the nonwoven fabric 224B (that is, the entire nonwoven fabric 224B) are torn off. to complete the non-woven fabric stripping operation.
- the worker takes out the coil springs 223a and 223b from the pocket spaces S1 opened above the perforations 252 (upper side for the worker).
- the bonding strength between the nonwoven fabric 250 and the nonwoven fabric 224B by the adhesive 84 is insufficient, it becomes difficult to effectively break the perforations 252 when peeling off the nonwoven fabric.
- the bonding strength between the nonwoven fabric 250 and the nonwoven fabric 224B by the adhesive 84 needs to be set relatively high so that the perforations 252 break first.
- the bonding strength between the nonwoven fabric 250 and the nonwoven fabric 224B by the adhesive 84 is appropriately ensured, the force required to peel off the entire nonwoven fabric 224B at the same time may become excessive.
- the nonwoven fabric 224B as a whole is relatively large and the adhesive 84 is applied to a large number of places accordingly, the force required to peel off the entire nonwoven fabric 224B at the same time may become excessive.
- the nonwoven fabric 224B instead of peeling off the entire nonwoven fabric 224B at the same time, the nonwoven fabric 224B can be peeled off for each row divided by the cuts 29. As a result, the force required for peeling off the nonwoven fabric is not excessive, and the workability of the nonwoven fabric peeling work can be improved.
- nonwoven fabric 224 may have cuts similar to cuts 29 .
- the spring coil layer 223B of the present embodiment has a configuration in which the configuration related to the nonwoven fabric 250 is inverted upside down with respect to the spring coil layer 223 of the above-described embodiment. 14, it may be provided only above the perforations 252.
- FIG. If the adhesive 80 is also applied below the perforations 252, the workability of peeling off the nonwoven fabric will be deteriorated. That is, when the adhesive 80 is also applied below the perforations 252 , the force during the nonwoven fabric peeling operation is applied between the nonwoven fabrics 250 in adjacent rows in the Y direction via the adhesive 80 (breaks 250 ). 29), the force required to break the perforations 252 increases. On the other hand, as shown in FIG.
- the adhesive 80 when the adhesive 80 is applied only above the perforations 252, the adhesive 80 is not applied between adjacent rows of the nonwoven fabrics 250 via the cuts 29.
- the force of the nonwoven stripping operation does not significantly extend through the nonwoven fabric. As a result, the force required for peeling off the nonwoven fabric is not excessive, and the workability of the nonwoven fabric peeling work can be improved.
- the perforation 252 is formed at a position biased upward with respect to the vertical center of the coil springs 223a and 223b.
- the coil springs 223a and 223b may be formed at positions biased downward with respect to the vertical center of the coil springs 223a and 223b.
- the perforations 252 are located at a position biased upward with respect to the vertical center of the coil springs 223a and 223b and with respect to the vertical center of the coil springs 223a and 223b.
- the user can pull the nonwoven fabric 222 or the nonwoven fabric 224 to break the upper or lower perforations 252 without being conscious of the vertical direction of the mattress 20.
- the perforation 252 may be formed near the center of the coil springs 223a and 223b in the vertical direction (at a position where there is no deviation in the vertical direction).
- the cut line 29 is formed only along the same X direction as the perforation line 252, but it is not limited to this.
- a cut in the Y direction may be formed in a manner intersecting with the cut 29 formed along the X direction. In this case, the length in the X direction of the regions (sections) separated by the cuts in the nonwoven fabric 224B is shortened by the cuts in the Y direction. can.
- a mattress having a plurality of pocket coils arranged along a first direction and a second direction perpendicular to each other in a plane perpendicular to the vertical direction, coil springs forming individual pocket coils; a plurality of pocket spaces for accommodating a plurality of the coil springs, the plurality of pocket spaces lined up in the first direction being formed by a single piece of first cloth; one sheet of the first cloth has perforations continuous in the first direction on both sides with respect to the center of the plurality of pocket spaces in the second direction; The perforations are formed so as to be broken by pulling the portion between the two perforations in the second direction on the first cloth upward or downward (direction away from the pocket space). mattress.
- the first cloth is used one by one for each row so that the plurality of pocket spaces arranged in the first direction form a plurality of rows in a manner adjacent to the second direction,
- the second cloth is fixed to the plurality of first cloths associated with the plurality of rows, and is above or below the plurality of pocket spaces associated with the plurality of rows in the first direction and the second direction.
- Mattress according to clause 2 extending in a defined plane.
- the first cloth associated with one row is second welded to join the ends of the first cloth to the side portions on one side in the second direction of each of the plurality of pocket spaces associated with the one row. has a part 3.
- one sheet of the first cloth has a first welded portion that partitions each of the plurality of pocket spaces arranged in the first direction; 5.
- a mattress having a plurality of pocket coils arranged along a first direction and a second direction perpendicular to each other in a plane perpendicular to the vertical direction, coil springs forming individual pocket coils; a first cloth forming a plurality of pocket spaces for accommodating the plurality of coil springs; a second cloth that extends in a plane so as to cover the entirety of the plurality of pocket spaces from a first side in the vertical direction and is fixed to the first cloth;
- the first cloth is provided in a plurality of rows, one for each row, for a plurality of rows of the pocket spaces arranged in the first direction,
- Each of the plurality of first cloths has perforations continuous in the first direction on both sides of the plurality of pocket spaces in the second direction,
- the mattress, wherein the second fabric has cuts along the first direction.
- Appendix 13 A plurality of the cuts are provided in a manner spaced apart from each other in the second direction, 13.
- Appendix 16 one sheet of the first cloth has a first welded portion that partitions each of the plurality of pocket spaces arranged in the first direction; 16. Any one of Appendices 11 to 15, wherein the first welded portion is formed along the vertical direction only on a second side opposite to the first side with respect to the perforations in the vertical direction.
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Abstract
Disclosed is a mattress with pocket coils, the mattress comprising coil springs forming the pocket coils, a first fabric in which pocket spaces accommodating the coil springs are formed, and a second fabric extending planarly to cover the entirety of the pocket spaces, wherein one sheet of the first fabric is provided with respect to each column of the pocket spaces, the first fabric is perforated continuously in a first direction on either side with a plurality of the pocket spaces in the center, the second fabric is fastened to a portion of the first fabric between the two lines of perforations, the portion lying between the two lines of perforations in a second direction crossing the first direction, and the perforations are formed so as to be ruptured by pulling a portion of the first fabric in the direction going away from the pocket spaces.
Description
本開示は、マットレス、製造方法、及び破棄方法に関する。
This disclosure relates to mattresses, manufacturing methods, and disposal methods.
ポケット空間を形成する袋状体にコイルスプリングを収容することでポケットコイルを実現するマットレスが知られている。この種のマットレスにおいて、コイルスプリングごとに別々に用意された袋状体同士の側部を接着し、袋状体のそれぞれの胴回り方向にミシン目を設けるとともに、袋状体の上面は表装ユニットの下面に接着剤によって接着する技術が知られている(例えば、特許文献1参照)。この技術では、表装ユニットを上方に引っ張ることにより袋状体のミシン目が破断して袋状体のそれぞれの上面の全てが開口することで、コイルスプリングを容易に取り出すことが可能となる。
A mattress that realizes a pocket coil by housing a coil spring in a bag-like body that forms a pocket space is known. In this type of mattress, the sides of the bag-shaped bodies prepared separately for each coil spring are adhered to each other, perforations are provided in the direction of the waist of each bag-shaped body, and the upper surface of the bag-shaped body is the mounting unit. A technique of adhering to the lower surface with an adhesive is known (see Patent Document 1, for example). In this technique, by pulling the mounting unit upward, the perforations of the bag-shaped body are broken and the entire upper surface of each bag-shaped body is opened, making it possible to easily take out the coil spring.
しかしながら、上記のような従来技術では、一枚の布を裁断して、コイルスプリングごとに別々に袋状体を形成する必要があるので、製造コストが高くなるという問題がある。また、個々に袋状体を形成することから、複数個を配列する際の誤組み付けが生じやすい。かかる誤組付けに起因して一部の袋状体のミシン目で破断が生じなくなると、全体に影響し、所望の態様ですべてのミシン目を同時に破断することができないおそれがある。
However, in the conventional technology as described above, it is necessary to cut a piece of cloth and form a separate bag-shaped body for each coil spring, which raises the problem of high manufacturing costs. In addition, since the bag-shaped bodies are individually formed, erroneous assembly is likely to occur when arranging a plurality of them. If breakage does not occur at some of the perforations of the bag-shaped body due to such incorrect assembly, it affects the entire bag, and there is a risk that all the perforations cannot be broken at the same time in a desired manner.
他方、一枚の布から裁断することなく複数のポケット空間を形成する場合、個々に袋状体を形成する場合の上述した問題点の一部を解消できうる反面、複数のポケット空間同士が布で連続していることから、複数のポケット空間を容易に開口させることができるミシン目を形成することが難しくなる。
On the other hand, in the case of forming a plurality of pocket spaces without cutting a piece of cloth, it is possible to solve some of the above-mentioned problems in the case of forming individual bags, but on the other hand, the plurality of pocket spaces are separated from each other by the cloth. Therefore, it is difficult to form perforations that can easily open a plurality of pocket spaces.
そこで、本開示は、マットレスにおいて、一枚の布から裁断することなく複数のポケット空間を形成しつつ、複数のポケット空間を開口させることが容易なミシン目を当該布に付与することを目的とする。
Therefore, an object of the present disclosure is to form a plurality of pocket spaces in a mattress without cutting from a single piece of cloth, and to provide perforations in the cloth that facilitate opening the plurality of pocket spaces. do.
1つの側面では、ポケットコイルを有するマットレスであって、
前記ポケットコイルを形成するコイルスプリングと、
当該コイルスプリングを収容するポケット空間を形成する第1布と、
前記ポケット空間の全体を覆うように平面状に延在する第2布とを備え、
前記第1布は、前記ポケット空間の列に対して、一列ごとに一枚ずつ設けられ、
前記第1布は、複数の前記ポケット空間の中心に対し両側に、第1方向に連続するミシン目を有し、
前記第2布は、前記第1布における2本の前記ミシン目の間の部分であって、前記第1方向に交差する第2方向での2本の前記ミシン目の間の部分に固着され、
前記ミシン目は、前記第1布における前記部分を前記ポケット空間から離れる方向に引っ張ることで破断するように形成される、マットレスが提供される。 In one aspect, a mattress having pocketed coils comprising:
a coil spring forming the pocket coil;
a first cloth forming a pocket space for accommodating the coil spring;
a second cloth extending in a plane so as to cover the entire pocket space;
The first cloth is provided one by one for each row of the pocket spaces,
The first cloth has perforations continuous in a first direction on both sides with respect to the center of the plurality of pocket spaces,
The second cloth is fixed to a portion between the two perforations in the first cloth, the portion between the two perforations in a second direction crossing the first direction. ,
A mattress is provided wherein the perforation is formed to break by pulling the portion of the first fabric away from the pocket space.
前記ポケットコイルを形成するコイルスプリングと、
当該コイルスプリングを収容するポケット空間を形成する第1布と、
前記ポケット空間の全体を覆うように平面状に延在する第2布とを備え、
前記第1布は、前記ポケット空間の列に対して、一列ごとに一枚ずつ設けられ、
前記第1布は、複数の前記ポケット空間の中心に対し両側に、第1方向に連続するミシン目を有し、
前記第2布は、前記第1布における2本の前記ミシン目の間の部分であって、前記第1方向に交差する第2方向での2本の前記ミシン目の間の部分に固着され、
前記ミシン目は、前記第1布における前記部分を前記ポケット空間から離れる方向に引っ張ることで破断するように形成される、マットレスが提供される。 In one aspect, a mattress having pocketed coils comprising:
a coil spring forming the pocket coil;
a first cloth forming a pocket space for accommodating the coil spring;
a second cloth extending in a plane so as to cover the entire pocket space;
The first cloth is provided one by one for each row of the pocket spaces,
The first cloth has perforations continuous in a first direction on both sides with respect to the center of the plurality of pocket spaces,
The second cloth is fixed to a portion between the two perforations in the first cloth, the portion between the two perforations in a second direction crossing the first direction. ,
A mattress is provided wherein the perforation is formed to break by pulling the portion of the first fabric away from the pocket space.
本開示によれば、マットレスにおいて、一枚の布から裁断することなく複数のポケット空間を形成しつつ、複数のポケット空間を開口させることが容易なミシン目を当該布に付与することが可能となる。
According to the present disclosure, in the mattress, it is possible to form a plurality of pocket spaces without cutting from a single piece of cloth, and to provide the cloth with perforations that facilitate opening the plurality of pocket spaces. Become.
以下、添付図面を参照しながら各実施例について詳細に説明する。なお、図面の寸法比率はあくまでも一例であり、これに限定されるものではなく、また、図面内の形状等は、説明の都合上、部分的に誇張している場合がある。本明細書において、不織布のような布に関する一枚とは、製品状態での一枚(一切れ)であり、層間が一体化されている限り多層構造も含む概念である。
Each embodiment will be described in detail below with reference to the accompanying drawings. Note that the dimensional ratios in the drawings are merely examples, and the present invention is not limited to these, and shapes and the like in the drawings may be partially exaggerated for convenience of explanation. In the present specification, one piece of cloth such as nonwoven fabric means one piece (piece) in a product state, and is a concept including a multi-layer structure as long as the layers are integrated.
図1は、マットレス20の使用状態を示す斜視図である。図1には、右手座標系でX,Y,Z軸が定義されている。以下の説明において、上下方向(Z方向)は、マットレス20の使用状態を基準とする。マットレス20は、寝具であり、ベッドフレーム7上に載置されて使用される。また、マットレス20は、上下を変更可能となりうるが、マットレス20の上側及び下側については、特に言及しない限り、図1に示す状態を基準とする。なお、上下変更可能でないマットレスの場合(例えば図2Aのマットレス20A参照)、ユーザに上側が明確になるよう、ロゴ等がマットレスの側部に付されてよい。
FIG. 1 is a perspective view showing how the mattress 20 is used. In FIG. 1, the X, Y and Z axes are defined in a right-handed coordinate system. In the following description, the up-down direction (Z direction) is based on the state of use of the mattress 20 . The mattress 20 is bedding and is placed on the bed frame 7 for use. Also, the mattress 20 can be changed up and down, but the upper and lower sides of the mattress 20 are based on the state shown in FIG. 1 unless otherwise specified. It should be noted that in the case of mattresses that are not reversible (see, for example, mattress 20A in FIG. 2A), logos or the like may be applied to the sides of the mattress to make the top side clear to the user.
図2は、マットレス20の断面構造の説明図であり、マットレス20の断面構造の概略図である。図3は、スプリングコイル層223におけるコイルスプリング223a、223bの配列態様を上面視で模式的に示す図である。図3には、図1と同様のX方向(第1方向の一例)とY方向(第2方向の一例)が定義されており、ここでは、マットレス20の長手方向がX方向に対応する。
FIG. 2 is an explanatory diagram of the cross-sectional structure of the mattress 20 and a schematic diagram of the cross-sectional structure of the mattress 20. FIG. FIG. 3 is a schematic top view showing the arrangement of the coil springs 223a and 223b in the spring coil layer 223. As shown in FIG. FIG. 3 defines an X direction (an example of a first direction) and a Y direction (an example of a second direction) similar to those in FIG. 1, where the longitudinal direction of the mattress 20 corresponds to the X direction.
図2に示す例では、マットレス20は、キルティング部21(以下、区別のため、「上側キルティング部21」とも称する)と、詰め物部22と、キルティング部23(以下、区別のため、「下側キルティング部23」とも称する)とからなる。
In the example shown in FIG. 2, the mattress 20 includes a quilting portion 21 (hereinafter also referred to as an "upper quilting portion 21" for distinction), a padding portion 22, and a quilting portion 23 (hereinafter also referred to as a "lower quilting portion 21" for distinction). quilting portion 23”).
上側キルティング部21は、上側から、表面生地211と、人工綿212と、ソフトウレタン213と、不織布214とからなる。なお、上側キルティング部21の構成は、これに限られず、他の材料が追加されてもよいし、一部の材料が省略されてもよい。
The upper quilting part 21 consists of surface fabric 211, artificial cotton 212, soft urethane 213, and nonwoven fabric 214 from the top. The configuration of the upper quilting portion 21 is not limited to this, and other materials may be added or some materials may be omitted.
表面生地211は、例えば抗菌・防臭・防ダニ機能を有するニット生地であってよい。表面生地211は、好ましくは、密度が180g/m2以上である。表面生地211は、例えば厚みが1mmであってよい。
The surface fabric 211 may be, for example, a knitted fabric having antibacterial, deodorant, and antimite functions. The surface fabric 211 preferably has a density of 180 g/m 2 or more. The surface fabric 211 may have a thickness of 1 mm, for example.
人工綿212は、例えば密度が約140g/m2であってよい。また、人工綿212は、例えば厚みが10mmであってよい。
Synthetic cotton 212 may, for example, have a density of about 140 g/m 2 . Also, the artificial cotton 212 may have a thickness of 10 mm, for example.
ソフトウレタン213は、例えば密度がD28であってよい。また、ソフトウレタン213は、例えば厚みが15mmであってよい。
The soft urethane 213 may have a density of D28, for example. Also, the soft urethane 213 may have a thickness of 15 mm, for example.
不織布214は、例えば密度が約40g/m2であってよい。また、不織布214は、例えば厚みが0.25mmであってよい。
The nonwoven fabric 214 may, for example, have a density of about 40 g/m 2 . Also, the nonwoven fabric 214 may have a thickness of 0.25 mm, for example.
詰め物部22は、上側から、不織布220と、ソフトウレタン221と、不織布222と、スプリングコイル層223と、不織布224と、ソフトウレタン225と、不織布226とからなる。
The stuffing part 22 consists of a nonwoven fabric 220, a soft urethane 221, a nonwoven fabric 222, a spring coil layer 223, a nonwoven fabric 224, a soft urethane 225, and a nonwoven fabric 226 from above.
不織布220は、例えば密度が約40g/m2であってよい。また、不織布220は、例えば厚みが0.25mmであってよい。
The non-woven fabric 220 may, for example, have a density of about 40 g/m 2 . Also, the nonwoven fabric 220 may have a thickness of 0.25 mm, for example.
ソフトウレタン221は、例えば密度がD21であってよい。また、ソフトウレタン221は、例えば厚みが20mmであってよい。ソフトウレタン221は、上側が凹凸状に形成されてもよい。これにより、体圧分散値が向上する。
The soft urethane 221 may have a density of D21, for example. Also, the soft urethane 221 may have a thickness of 20 mm, for example. The soft urethane 221 may have an uneven top surface. This improves the body pressure dispersion value.
不織布222は、例えば密度が約80g/m2であってよい。また、不織布222は、例えば厚みが0.25mmであってよい。
Nonwoven fabric 222 may, for example, have a density of about 80 g/m 2 . Also, the nonwoven fabric 222 may have a thickness of 0.25 mm, for example.
スプリングコイル層223は、ポケットコイルをそれぞれ形成する複数のコイルスプリング223a、223bが平行配列形態で配列される。コイルスプリング223a、223bの各列は、マットレス20の長手方向(X方向)に延在し、マットレス20の短手方向(Y方向)で互いに接する。各列におけるコイルスプリング223a、223bの数は、同じであってよい。なお、変形例では、複数のコイルスプリング223aが交互配列形態で配列されてもよい。
In the spring coil layer 223, a plurality of coil springs 223a and 223b forming pocket coils are arranged in parallel. Each row of the coil springs 223a, 223b extends in the longitudinal direction (X direction) of the mattress 20 and contacts each other in the lateral direction (Y direction) of the mattress 20. As shown in FIG. The number of coil springs 223a, 223b in each row may be the same. In addition, in a modified example, a plurality of coil springs 223a may be arranged in an alternate arrangement.
本実施例では、一例として、図3に示すように、短手方向(Y方向)の上から順に第1列から第7列としたとき、第3列から第5列は、複数のコイルスプリング223aにより構成され、他の列は、複数のコイルスプリング223bにより構成される。このようにして、2種類のコイルスプリング223a、223bを利用することで、寝心地を効果的に高めることができる。ただし、変形例では、1種類又は3種類上のコイルスプリングが利用されてもよい。
In this embodiment, as an example, as shown in FIG. 3, when the first to seventh rows are arranged in order from the top in the lateral direction (Y direction), the third to fifth rows are composed of a plurality of coil springs. 223a and the other row is composed of a plurality of coil springs 223b. In this way, by using the two types of coil springs 223a and 223b, it is possible to effectively improve sleeping comfort. However, in a modified example, one or three more types of coil springs may be used.
スプリングコイル層223を形成するコイルスプリング223aは、線径(鋼線径)が1.8mmであり、コイル径が62mmである。また、スプリングコイル層223を形成するコイルスプリング223aは、巻き数が5巻であり、コイル高さが自由長で170mmであり、ポケット時は100mmである。各コイルスプリング223aは、例えば提灯型であってよい。
The coil spring 223a forming the spring coil layer 223 has a wire diameter (steel wire diameter) of 1.8 mm and a coil diameter of 62 mm. The coil spring 223a forming the spring coil layer 223 has 5 turns, a free coil height of 170 mm, and a pocket height of 100 mm. Each coil spring 223a may be, for example, a lantern shape.
また、スプリングコイル層223を形成するコイルスプリング223bは、線径(鋼線径)が2.2mmであり、コイル径が62mmである。また、スプリングコイル層223を形成するコイルスプリング223bは、巻き数が5.5巻であり、コイル高さが自由長で140mmであり、ポケット時は100mmである。各コイルスプリング223bは、例えば提灯型であってよい。
Also, the coil spring 223b forming the spring coil layer 223 has a wire diameter (steel wire diameter) of 2.2 mm and a coil diameter of 62 mm. The coil spring 223b forming the spring coil layer 223 has 5.5 turns, a free coil height of 140 mm, and a pocket height of 100 mm. Each coil spring 223b may be, for example, a lantern shape.
不織布224は、例えば密度が約80g/m2であってよい。また、不織布224は、例えば厚みが0.25mmであってよい。
The nonwoven fabric 224 may, for example, have a density of about 80 g/m 2 . Also, the nonwoven fabric 224 may have a thickness of 0.25 mm, for example.
ソフトウレタン225は、例えば密度がD21であってよい。また、ソフトウレタン225は、例えば厚みが15mmであってよい。
The soft urethane 225 may have a density of D21, for example. Also, the soft urethane 225 may have a thickness of 15 mm, for example.
不織布226は、例えば密度が約40g/m2であってよい。また、不織布226は、例えば厚みが0.25mmであってよい。
The nonwoven fabric 226 may, for example, have a density of about 40 g/m 2 . Also, the nonwoven fabric 226 may have a thickness of 0.25 mm, for example.
下側キルティング部23は、上側から、不織布231と、ソフトウレタン232と、人工綿233と、表面生地234とからなる。なお、下側キルティング部23の構成は、これに限られず、他の材料が追加されてもよいし、一部の材料が省略されてもよい。
The lower quilting part 23 consists of nonwoven fabric 231, soft urethane 232, artificial cotton 233, and surface fabric 234 from the top. The configuration of the lower quilting portion 23 is not limited to this, and other materials may be added or some materials may be omitted.
不織布231は、例えば密度が約40g/m2であってよい。また、不織布231は、例えば厚みが0.25mmであってよい。
The non-woven fabric 231 may, for example, have a density of about 40 g/m 2 . Moreover, the nonwoven fabric 231 may have a thickness of 0.25 mm, for example.
ソフトウレタン232は、例えば密度がD28であってよい。また、ソフトウレタン232は、例えば厚みが15mmであってよい。
The soft urethane 232 may have a density of D28, for example. Also, the soft urethane 232 may have a thickness of 15 mm, for example.
人工綿233は、例えば密度が約140g/m2であってよい。また、人工綿233は、例えば厚みが10mmであってよい。
Synthetic cotton 233 may, for example, have a density of about 140 g/m 2 . Also, the artificial cotton 233 may have a thickness of 10 mm, for example.
表面生地234は、例えば抗菌・防臭・防ダニ機能を有するニット生地であってよい。表面生地234は、好ましくは、密度が180g/m2以上である。表面生地234は、例えば厚みが1mmであってよい。
The surface fabric 234 may be, for example, a knitted fabric having antibacterial, deodorant, and antimite functions. The face fabric 234 preferably has a density of 180 g/m 2 or higher. The surface fabric 234 may be, for example, 1 mm thick.
なお、図2では、特定の構成のマットレス20が示されているが、スプリングコイル層223を有し、かつ、スプリングコイル層223が後述する構成を有する限り、マットレス20の構成は任意である。例えば、図2Aに示すような構成のマットレス20Aであってもよい。この場合、ソフトウレタン232に代えてニードルパンチ232A等が利用されている。このようなマットレス20Aの場合、上下変更可能でない使用態様(すなわち、常にZ方向正側が上側となる使用態様)に好適である。
Although FIG. 2 shows the mattress 20 having a specific configuration, the mattress 20 may have any configuration as long as it has the spring coil layer 223 and the spring coil layer 223 has the configuration described later. For example, it may be a mattress 20A configured as shown in FIG. 2A. In this case, instead of the soft urethane 232, a needle punch 232A or the like is used. Such a mattress 20A is suitable for a mode of use in which the vertical direction cannot be changed (that is, a mode of use in which the positive side in the Z direction is always the upper side).
次に、図4A以降を参照して、スプリングコイル層223の詳細を説明する。なお、以下では、代表として、コイルスプリング223aに係る列の構成について説明するが、コイルスプリング223bに係る列についても実質的に同様である。
Next, the details of the spring coil layer 223 will be described with reference to FIG. 4A onward. Although the configuration of the row associated with the coil spring 223a will be described below as a representative, the same applies to the row associated with the coil spring 223b.
図4Aから図4Cは、コイルスプリング223aのそれぞれが収容されるポケット空間S1を形成する不織布250(第1布の一例)の説明図である。
FIGS. 4A to 4C are explanatory diagrams of the nonwoven fabric 250 (an example of the first fabric) forming the pocket space S1 in which each of the coil springs 223a is accommodated.
不織布250は、展開時に矩形の形態の不織布シート25から複数枚が形成されてよい。例えば、不織布250のミシン目252は、図4Aに示すように、ロール状に巻回された形態の不織布シート25を巻出する際に、ミシン目形成刃400(図4Aでは一つだけ図示)により形成されてもよい。ミシン目252は、図4Aに示すように、2本平行に形成される。なお、ミシン目形成刃400は、例えば刃の長さが3mm程度であってよく、刃が周方向に沿って1mmの間隔をおいて周期的に配置されてよい。なお、このようにして、ミシン目252が形成された不織布250は、図4Cに示すように、ロール状に巻回されて管理されてもよい。この場合、不織布シート25のロール方向は、図3等に示すX方向に対応してよい。
The nonwoven fabric 250 may be formed from a plurality of rectangular nonwoven fabric sheets 25 when unfolded. For example, as shown in FIG. 4A, the perforations 252 of the nonwoven fabric 250 are formed by the perforation forming blades 400 (only one is shown in FIG. 4A) when the nonwoven fabric sheet 25 wound in a roll is unwound. may be formed by Two perforations 252 are formed in parallel, as shown in FIG. 4A. The perforation forming blade 400 may have a blade length of, for example, about 3 mm, and the blades may be arranged periodically at intervals of 1 mm along the circumferential direction. The nonwoven fabric 250 having the perforations 252 thus formed may be wound into a roll and managed as shown in FIG. 4C. In this case, the roll direction of the nonwoven fabric sheet 25 may correspond to the X direction shown in FIG. 3 and the like.
あるいは、不織布250は、図4Bに示すように、複数枚分の不織布250を形成するための一枚の不織布シート25に対して、複数枚分用のカットを行うと同時にミシン目252を入れることで、形成されてもよい。このような、カット及びミシン目252の付与は、ロール状に巻回された形態の不織布シート25を巻出する際に実現されてよい。これにより、ミシン目252を形成する工程を別に設ける場合に比べて、効率的な製造工程を実現できる。なお、複数枚分の不織布250を形成するための一枚の不織布シート25を、複数枚分用にカットする場合、巻き出し方向に対応するX方向に沿ったカットだけが実現され、Y方向のカット(クロス方向のカット)は別に実行されてもよい。図4Bでは、4枚分の不織布250を形成するための一枚の不織布シート25に対して形成されたミシン目252及びカットライン253が模式的に示されている。この場合も、カットされかつミシン目252が形成された不織布250は、図4Cに示すように、ロール状に巻回されて管理や搬送されてもよい。
Alternatively, as shown in FIG. 4B, the nonwoven fabric 250 is formed by cutting a single nonwoven fabric sheet 25 for forming a plurality of nonwoven fabrics 250 and simultaneously making perforations 252 . , may be formed. Such cuts and provision of perforations 252 may be realized when unwinding the nonwoven fabric sheet 25 wound into a roll. As a result, an efficient manufacturing process can be realized as compared with the case where the process of forming the perforations 252 is provided separately. Note that when one nonwoven fabric sheet 25 for forming a plurality of nonwoven fabrics 250 is cut into a plurality of sheets, only the cutting along the X direction corresponding to the unwinding direction is realized, and the cutting along the Y direction is realized. Cuts (cross cuts) may be performed separately. FIG. 4B schematically shows perforations 252 and cut lines 253 formed on one nonwoven fabric sheet 25 for forming four nonwoven fabrics 250 . Also in this case, the nonwoven fabric 250 that has been cut and formed with perforations 252 may be wound into a roll and managed or transported, as shown in FIG. 4C.
なお、上述したように、ミシン目252が形成されてからロール状に巻回された不織布シート25のX方向の長さが複数枚の不織布250分の長さを有する場合、利用時に、1枚分の各不織布250は、X方向に沿った1枚分の長さごとに、Y方向に沿ってカットすることで形成されてよい。
In addition, as described above, when the length in the X direction of the nonwoven fabric sheet 25 wound into a roll after the perforations 252 are formed has the length of a plurality of nonwoven fabrics 250, at the time of use, one sheet Each of the non-woven fabrics 250 may be formed by cutting along the Y-direction for each length along the X-direction.
図5は、一の列の複数のコイルスプリング223a(図3では、11個のコイルスプリング223a)に対して、それぞれが収容されるポケット空間S1を形成する不織布250の平面図である。図5には、ポケット空間S1を形成する前の展開状態の不織布250が示されている。図5において、一点鎖線L1は、不織布250のY方向の中心線を表し、上下端のハッチング部は、後述する溶着部258に対応する。図6は、不織布250からポケット空間S1を形成する方法の説明図である。図7は、一の列の複数のポケット空間S1のうちの、3つのポケット空間S1を抜き出してY方向に視た側面図である。図7では、説明用に、不織布250により形成されるポケット空間S1内のコイルスプリング223aを透視で模式的に示している。図7(以下の図8及び図9も同様)では、各溶着部256、258や接着剤80、82、84がハッチングで模式的に示されている。図8は、Y方向で隣り合う3つの列のポケット空間S1を抜き出してX方向に視た側面図である。図8でも、説明用に、不織布250により形成されるポケット空間S1内のコイルスプリング223aを透視で模式的に示している。図7及び図8には、ポケット空間S1の上側と下側の不織布222、224も併せて示されている。図9は、図7のラインA―Aに沿った概略的な断面図であり、図10は、図7のラインB-Bに沿った概略的な断面図である。なお、図7のラインB-Bは、説明用に、ミシン目252からわずかにずらして図示しているが、ミシン目252に沿ったラインである。図11は、廃棄方法の説明図であり、ポケット空間S1の上部が開口した状態を示す斜視図である。
FIG. 5 is a plan view of a nonwoven fabric 250 forming pocket spaces S1 in which a plurality of coil springs 223a in one row (eleven coil springs 223a in FIG. 3) are accommodated. FIG. 5 shows the unfolded nonwoven fabric 250 before forming the pocket space S1. In FIG. 5, the dashed-dotted line L1 represents the centerline of the nonwoven fabric 250 in the Y direction, and the hatched portions at the upper and lower ends correspond to welded portions 258, which will be described later. 6A and 6B are explanatory diagrams of a method of forming the pocket space S1 from the nonwoven fabric 250. FIG. FIG. 7 is a side view of three pocket spaces S1 extracted from one row of a plurality of pocket spaces S1 and viewed in the Y direction. 7 schematically shows the coil spring 223a in the pocket space S1 formed by the nonwoven fabric 250 for explanation purposes. In FIG. 7 (the same applies to FIGS. 8 and 9 below), the welding portions 256 and 258 and the adhesives 80, 82 and 84 are schematically indicated by hatching. FIG. 8 is a side view of three rows of pocket spaces S1 that are adjacent in the Y direction and viewed in the X direction. FIG. 8 also schematically shows the coil spring 223a in the pocket space S1 formed by the nonwoven fabric 250 for explanation. 7 and 8 also show the nonwoven fabrics 222, 224 on the upper and lower sides of the pocket space S1. 9 is a schematic cross-sectional view along line AA of FIG. 7, and FIG. 10 is a schematic cross-sectional view along line BB of FIG. Line BB in FIG. 7 is shown slightly shifted from perforation 252 for the sake of explanation, but it is a line along perforation 252 . FIG. 11 is an explanatory diagram of the disposal method, and is a perspective view showing a state in which the upper portion of the pocket space S1 is open.
不織布250は、図5に示すように、ミシン目252をX方向に平行に2本を有する。不織布250の展開状態において、Y方向でのミシン目252間の距離は、ポケット空間S1のサイズに応じた所定間隔であり、具体的には、コイルスプリング223aの外径(最大部分の直径)よりも有意に大きい。
The nonwoven fabric 250 has two perforations 252 parallel to the X direction, as shown in FIG. In the unfolded state of the nonwoven fabric 250, the distance between the perforations 252 in the Y direction is a predetermined interval corresponding to the size of the pocket space S1. is also significantly larger.
各列のコイルスプリング組立体(溶着部256、258により一体化された不織布250とコイルスプリング223aからなる組立体)を形成する際、図6に模式的に示すように、一の列を構成するすべてのコイルスプリング223aは、一枚の不織布250におけるミシン目252間の表面に対して、コイル中心軸が垂直となる向きでセットされる。このとき、各コイルスプリング223aは、各コイルスプリング223aのコイル中心軸を結んだ線分(図6の一点鎖線L2参照)が、2本のミシン目252間の略中心(Y方向の中心)となるように、一枚の不織布250に対して位置付けられる。
When forming each row of coil spring assemblies (an assembly consisting of the nonwoven fabric 250 and the coil springs 223a integrated by the welded portions 256 and 258), one row is formed as schematically shown in FIG. All the coil springs 223a are set so that the coil central axis is perpendicular to the surface between the perforations 252 in the single nonwoven fabric 250 . At this time, each coil spring 223a is arranged such that a line segment connecting the coil center axes of each coil spring 223a (see one-dot chain line L2 in FIG. 6) is substantially the center between the two perforations 252 (the center in the Y direction). It is positioned with respect to a sheet of nonwoven fabric 250 so as to be.
このように不織布250及び複数のコイルスプリング223aがセットされた状態から、不織布250のY方向両端部同士を重ね合わせる態様で不織布250を折り返すことで、複数のコイルスプリング223aが不織布250により包み込まれる。この際、X方向に連続する2本のミシン目252は、複数のコイルスプリング223aのY方向両側に位置することになる。
From the state in which the nonwoven fabric 250 and the plurality of coil springs 223a are set in this manner, the nonwoven fabric 250 is folded back so that both ends of the nonwoven fabric 250 in the Y direction overlap each other, so that the plurality of coil springs 223a are wrapped in the nonwoven fabric 250. At this time, the two perforations 252 continuous in the X direction are positioned on both sides of the plurality of coil springs 223a in the Y direction.
そして、不織布250のY方向両端部同士が溶着されることで、溶着部258が形成される。すなわち、一の列に係る不織布250は、一の列に係るポケット空間S1のそれぞれのY方向一方側の側部に、端部同士を接合する溶着部258(第2溶着部の一例)を有する。また、X方向で隣り合う各コイルスプリング223aに係るポケット空間S1を仕切る態様で、溶着部256(第1溶着部の一例)が形成される。なお、溶着部256は、一の列に係る不織布250におけるX方向の両端部にも形成されてよい。図6に示す例では、溶着部256は、不織布250における溶着部256として溶着される箇所が、256-1から256-3で示されている。この場合、対の箇所256-1同士が溶着されることで、一の溶着部256が形成され、対の箇所256-2同士が溶着されることで、他の一の溶着部256が形成され、対の箇所256-3同士が溶着されることで、更なる他の一の溶着部256が形成される。
Then, both ends of the nonwoven fabric 250 in the Y direction are welded together to form welded portions 258 . That is, the nonwoven fabric 250 associated with one row has a welded portion 258 (an example of a second welded portion) that joins the ends to each other on one Y-direction side of each of the pocket spaces S1 associated with one row. . In addition, a welded portion 256 (an example of a first welded portion) is formed in a mode that partitions the pocket spaces S1 related to the coil springs 223a that are adjacent in the X direction. Note that the welded portions 256 may also be formed at both ends in the X direction of the nonwoven fabric 250 associated with one row. In the example shown in FIG. 6, the welded portions 256 are welded as the welded portions 256 in the nonwoven fabric 250 as indicated by 256-1 to 256-3. In this case, one welded portion 256 is formed by welding the paired portions 256-1 together, and another welded portion 256 is formed by welding the paired portions 256-2 together. , and a pair of points 256-3 are welded together to form yet another welded portion 256. As shown in FIG.
このようにして形成される各列のコイルスプリング組立体(溶着部256、258により一体化された不織布250とコイルスプリング223aからなる組立体)は、図8に示すように、Y方向側部同士が接着剤80により接合される。また、各列のコイルスプリング組立体は、図7及び図8に示すように、XY平面内に延在する上側の不織布222に接着剤82により接合されるとともに、XY平面内に延在する下側の不織布224に接着剤84により接合される。なお、不織布222は、一のマットレス20におけるすべてのコイルスプリング223a、223bに対して共通であり、各列のポケット空間S1を形成する不織布250に接着(固着)される。このような不織布222を設けることで、各ポケット空間S1の間に、マットレス20の表面に対して垂直な方向の局所的な荷重(外部荷重)が付加された場合でも、局所的な沈み込み(各ポケット空間S1の間へのめり込み)を防止できる。これは、不織布224についても同様である。
Each row of coil spring assemblies thus formed (an assembly consisting of the non-woven fabric 250 and the coil springs 223a integrated by the welded portions 256 and 258) are separated from each other in the Y direction as shown in FIG. are joined by an adhesive 80 . 7 and 8, each row of coil spring assemblies is bonded by an adhesive 82 to an upper nonwoven fabric 222 extending in the XY plane, and a lower nonwoven fabric 222 extending in the XY plane. It is joined by an adhesive 84 to the nonwoven fabric 224 on the side. The nonwoven fabric 222 is common to all the coil springs 223a and 223b in one mattress 20, and is adhered (fixed) to the nonwoven fabric 250 forming the pocket spaces S1 of each row. By providing such a nonwoven fabric 222, even when a local load (external load) in a direction perpendicular to the surface of the mattress 20 is applied between the pocket spaces S1, local sinking ( It is possible to prevent the slipping into between the pocket spaces S1. This also applies to the nonwoven fabric 224 .
本実施例によれば、このように各列に対して1枚の不織布250を利用して、各列のポケット空間S1を形成するので、ポケット空間S1ごとに、不織布250を裁断して形成する必要がなく、生産性が大幅に向上する。
According to this embodiment, one sheet of nonwoven fabric 250 is used for each row to form the pocket spaces S1 in each row. Therefore, the nonwoven fabric 250 is cut and formed for each pocket space S1. No need, productivity is greatly improved.
また、本実施例によれば、上述したように、一の列に係る不織布250は、Y方向で一の列に係る各ポケット空間S1の両側に、X方向に連続するミシン目252を有する。また、2本のミシン目252は、図10に示すように、実質的に略同じ高さに位置し、上面視で、各コイルスプリング223aを囲繞する態様で、X方向に連続する。なお、ミシン目252は、各コイルスプリング223aの反発力により破断しないようなピッチで形成される。本実施例では、上述したように、ミシン目252は、X方向で約3mmの長さの孔部が1mmの間隔(すなわち4mmのピッチ)で周期的に配置される。
Also, according to this embodiment, as described above, the nonwoven fabric 250 associated with one row has perforations 252 continuous in the X direction on both sides of each pocket space S1 associated with one row in the Y direction. Also, as shown in FIG. 10, the two perforations 252 are positioned substantially at approximately the same height, and are continuous in the X direction in a manner surrounding each coil spring 223a when viewed from above. The perforations 252 are formed at a pitch that does not break due to the repulsive force of each coil spring 223a. In this embodiment, as described above, the perforations 252 are formed by periodically arranging holes having a length of about 3 mm in the X direction at intervals of 1 mm (that is, a pitch of 4 mm).
本実施例では、不織布222が接着剤82により不織布250に接着されていることから、マットレス20の廃棄の際に、不織布222を、スプリングコイル層223から剥がす方向にスプリングコイル層223に対して引っ張ると、不織布250のミシン目252に大きな力(各コイルスプリング223aの反発力よりも有意に大きな力)が加わる。これにより、各列のミシン目252が連続的に破断していく。このようにミシン目252は、不織布250におけるY方向で2本のミシン目252の間の部分を上方向(すなわちポケット空間S1から離れる方向)に引っ張ることで破断する。このようにして、本実施例によれば、各列のポケット空間S1に対して各ポケット空間S1の上側(ミシン目252よりも上側)を容易に開口させることができる(図11参照)。以下、このようにして、マットレス20の廃棄の際に、不織布222をスプリングコイル層223から引き剥がすことで、不織布250のミシン目252を破断させて各ポケット空間S1の上側を開口させる作業を、単に「不織布引き剥がし作業」とも称する。
In this embodiment, since the nonwoven fabric 222 is adhered to the nonwoven fabric 250 by the adhesive 82, the nonwoven fabric 222 is pulled against the spring coil layer 223 in the direction of peeling off from the spring coil layer 223 when the mattress 20 is discarded. , a large force (significantly larger force than the repulsive force of each coil spring 223a) is applied to the perforations 252 of the nonwoven fabric 250 . As a result, the perforations 252 in each row are continuously broken. In this way, the perforations 252 are broken by pulling the portion between the two perforations 252 in the Y direction in the nonwoven fabric 250 upward (that is, in the direction away from the pocket space S1). In this way, according to this embodiment, the upper side of each pocket space S1 (above the perforation 252) can be easily opened to the pocket space S1 of each row (see FIG. 11). Hereinafter, when the mattress 20 is discarded, the nonwoven fabric 222 is peeled off from the spring coil layer 223, thereby breaking the perforations 252 of the nonwoven fabric 250 and opening the upper side of each pocket space S1. It is also simply called "non-woven fabric stripping work".
また、本実施例によれば、上述したように、不織布250の展開状態において、Y方向でのミシン目252間の距離は、コイルスプリング223aの外径よりも大きい。従って、ポケット空間S1にコイルスプリング223aが収容された状態では、図7及び図8に示すように、ミシン目252は、コイルスプリング223aの最も上側の巻線2231よりも下側、かつ、コイルスプリング223aの最も下側の巻線2232よりも上側であって、コイルスプリング223aの軸方向の中心よりも上側に偏った位置に形成される。例えば、図7に示すように、ポケット空間S1の上面からのミシン目252の距離Δ1は、12mmから18mmの範囲内であってよい。これにより、不織布222をスプリングコイル層223から剥がす方向に引っ張ることでミシン目252を破断させる際に、不織布250におけるミシン目252よりも上側の部分がコイルスプリング223aに引っかかる可能性が低くなる。なお、不織布222をスプリングコイル層223から剥がす方向に引っ張ることでミシン目252を破断させる際に、不織布250におけるミシン目252よりも上側の部分がコイルスプリング223aに引っかかると、不織布222を引っ張る力の一部がコイルスプリング223aに掛かり、その分だけ、ミシン目252を破断させるのに要する力が大きくなる。これに対して、本実施例によれば、比較的低い力でミシン目252を破断させることができ、各ポケット空間S1の上側を開口させる際の作業性(すなわち不織布引き剥がし作業の作業性)を高めることができる。
Also, according to this embodiment, as described above, in the unfolded state of the nonwoven fabric 250, the distance between the perforations 252 in the Y direction is greater than the outer diameter of the coil spring 223a. Therefore, when the coil spring 223a is accommodated in the pocket space S1, as shown in FIGS. 7 and 8, the perforations 252 are located below the uppermost winding 2231 of the coil spring 223a and above the coil spring 223a. It is formed above the lowermost winding 2232 of the coil spring 223a and above the center of the coil spring 223a in the axial direction. For example, as shown in FIG. 7, the distance Δ1 of the perforations 252 from the upper surface of the pocket space S1 may be in the range of 12mm to 18mm. Thus, when the perforations 252 are broken by pulling the nonwoven fabric 222 from the spring coil layer 223, the possibility that the part of the nonwoven fabric 250 above the perforations 252 is caught by the coil springs 223a is reduced. When the perforations 252 are broken by pulling the nonwoven fabric 222 in the direction of peeling off the spring coil layer 223, if the portion of the nonwoven fabric 250 above the perforations 252 is caught by the coil spring 223a, the force pulling the nonwoven fabric 222 is reduced. A portion of the force is applied to the coil spring 223a, and the force required to break the perforations 252 increases accordingly. On the other hand, according to the present embodiment, the perforation 252 can be broken with a relatively low force, and workability when opening the upper side of each pocket space S1 (that is, workability of peeling off the nonwoven fabric). can increase
なお、ミシン目252がコイルスプリング223aの軸方向の中心より下側に位置する場合には、ミシン目252を破断させて、不織布250におけるミシン目252よりも上側の部分を不織布222とともに除去する際にも、不織布250におけるミシン目252よりも上側の部分が、コイルスプリング223aに引っ掛かる可能性がある。このような引っ掛かりは、作業性を悪化させる。この点、本実施例によれば、このような不都合が生じ難く、各ポケット空間S1の上側を開口させる際の作業性(すなわち不織布引き剥がし作業の作業性)を高めることができる。
When the perforations 252 are positioned below the center of the coil spring 223a in the axial direction, the perforations 252 are broken and the portion of the nonwoven fabric 250 above the perforations 252 is removed together with the nonwoven fabric 222. Also, there is a possibility that the portion of the nonwoven fabric 250 above the perforations 252 may be caught by the coil springs 223a. Such catching deteriorates workability. In this regard, according to the present embodiment, such inconvenience is less likely to occur, and workability when opening the upper side of each pocket space S1 (that is, workability of peeling off the nonwoven fabric) can be enhanced.
また、本実施例によれば、上述したように、不織布250の展開状態において、Y方向でのミシン目252間の距離が、コイルスプリング223aの外径よりも大きいことから、ポケット空間S1の上側が開口した状態では、コイルスプリング223aを容易にポケット空間S1の上側の開口を介して取り出すことができる。すなわち、コイルスプリング223aを取り出す際の作業性も高めることができる。
Further, according to this embodiment, as described above, in the unfolded state of the nonwoven fabric 250, the distance between the perforations 252 in the Y direction is greater than the outer diameter of the coil spring 223a. With the side opened, the coil spring 223a can be easily taken out through the upper opening of the pocket space S1. That is, it is possible to improve workability when removing the coil spring 223a.
本実施例では、溶着部256は、好ましくは、図7に示すように、上下方向でミシン目252の手前で終端する態様で、上下方向に沿って形成される。なお、本実施例では、X方向で2つのポケット空間S1間に形成される溶着部256は、上下方向で3つに分断された形態であるが、より多くの数であってもよいし、少ない数であってもよい。また、X方向で2つのポケット空間S1間に形成される溶着部256は、上下方向に連続する態様で形成されてもよい。
In this embodiment, the welded portion 256 is preferably formed along the vertical direction so as to terminate before the perforation 252 in the vertical direction, as shown in FIG. In this embodiment, the welded portion 256 formed between the two pocket spaces S1 in the X direction is vertically divided into three, but the number may be larger, It may be a small number. Also, the welded portion 256 formed between the two pocket spaces S1 in the X direction may be formed in a continuous manner in the vertical direction.
このようにして、本実施例では、X方向でポケット空間S1を仕切る溶着部256がミシン目252よりも下側に配置されるので、ミシン目252が溶着部256に含まれる場合(すなわち溶着部256を形成するためにミシン目252が溶着される場合)に比べて、ミシン目252を破断させる際の作業性が向上する。すなわち、ミシン目252よりも上側の範囲(上下方向の範囲)が比較的狭いことから、ミシン目252よりも上側も溶着すると、Y方向でミシン目252同士が溶着するおそれがある。これに対して、ミシン目252よりも下側の範囲(上下方向の範囲)が比較的広いことから、ミシン目252よりも下側だけを溶着すると、図10に示すように、Y方向でミシン目252同士が溶着する可能性が低い。すなわち、上下方向の必要な溶着範囲を確保しつつ、Y方向でミシン目252同士が溶着する可能性を低減できる。Y方向でミシン目252同士が溶着すると、ミシン目252を連続的に破断させる際に要する力が過大となりうる。従って、本実施例によれば、ミシン目252を連続的に破断させる際に要する力が溶着部256に起因して過大になる可能性を、低減できる。
In this manner, in this embodiment, the welded portion 256 that partitions the pocket space S1 in the X direction is arranged below the perforation 252. Therefore, when the perforated portion 252 is included in the welded portion 256 Workability in breaking the perforation 252 is improved compared to the case where the perforation 252 is welded to form 256). That is, since the range above the perforations 252 (the range in the vertical direction) is relatively narrow, if the perforations 252 are also welded above the perforations 252, the perforations 252 may be welded together in the Y direction. On the other hand, since the range below the perforation 252 (the range in the vertical direction) is relatively wide, if only the area below the perforation 252 is welded, as shown in FIG. The possibility that the eyes 252 are welded to each other is low. That is, it is possible to reduce the possibility that the perforations 252 are welded together in the Y direction while ensuring the necessary welding range in the vertical direction. If the perforations 252 are welded together in the Y direction, the force required to continuously break the perforations 252 may be excessive. Therefore, according to this embodiment, it is possible to reduce the possibility that the force required to continuously break the perforations 252 will be excessive due to the welded portion 256 .
また、本実施例では、ミシン目252は、図8に模式的に示すように、不織布250のY方向端部同士を接合する溶着部258よりも上側に位置する。これにより、ミシン目252が溶着部258に含まれる場合(すなわち溶着部258を形成するためにミシン目252が溶着される場合)に比べて、ミシン目252を破断させる際の作業性が向上する。すなわち、破断させる際に要する力を適切に低減できる。
In addition, in this embodiment, the perforations 252 are located above the welding portions 258 that join the Y-direction ends of the nonwoven fabric 250, as schematically shown in FIG. This improves workability when breaking the perforations 252 compared to the case where the perforations 252 are included in the welded portion 258 (that is, the case where the perforations 252 are welded to form the welded portion 258). . That is, the force required for breaking can be appropriately reduced.
なお、図4A以降では、X方向に並ぶポケット空間S1の列ごとに一枚の不織布250を利用しているが、Y方向に並ぶポケット空間S1の列ごとに一枚の不織布250を利用してもよい。なお、かかる構成は、図4A以降の説明(以下の図12以降の説明を含む)において、X方向及びY方向を、Y方向及びX方向とそれぞれ読み替えた構成である。この場合も実質的に同じ効果が得られる。
In FIG. 4A and later, one sheet of nonwoven fabric 250 is used for each row of pocket spaces S1 arranged in the X direction, but one sheet of nonwoven fabric 250 is used for each row of pocket spaces S1 arranged in the Y direction. good too. Such a configuration is a configuration obtained by replacing the X direction and the Y direction with the Y direction and the X direction in the description of FIG. 4A and subsequent figures (including the following description of FIG. 12 and subsequent figures). Substantially the same effect can be obtained in this case as well.
次に、図12以降を参照して、他の実施例について説明する。以下では、説明の都合上、上述した実施例を「実施例1」と称し、図12以降の実施例を「実施例2」と称する。実施例2の説明において、上述した実施例1と同様であってよい構成要素については、同一の参照符号を付して説明を省略する場合がある。
Next, another embodiment will be described with reference to FIG. 12 onwards. Hereinafter, for convenience of explanation, the above-described embodiment will be referred to as "embodiment 1", and the embodiments after FIG. 12 will be referred to as "embodiment 2". In the description of the second embodiment, constituent elements that may be the same as those of the first embodiment described above may be given the same reference numerals and the description thereof may be omitted.
図12は、本実施例によるマットレス20Bの断面構造の説明図であり、マットレス20Bの断面構造の概略図である。図13は、本実施例によるマットレス20Bの一の列の複数のポケット空間S1のうちの、3つのポケット空間S1を抜き出してY方向に視た側面図である。図14は、本実施例によるマットレス20Bの一の列の複数のポケット空間S1のうちの、3つのポケット空間S1を抜き出してX方向に視た側面図である。図15は、マットレス20Bのうちの、不織布224B、スプリングコイル層223B、及び不織布222からなる部分(以下、「ポケットコイル層2」とも称する)を、下側から視た斜視図である。図16は、X方向のポケット空間S1の列に対するX方向の切れ目29の位置の説明図であり、コイルスプリング223aの軸方向の中心を通るXY平面で切断したときの、下側部分を、切れ目29が設けられるラインを示す点線290とともに、上面視で示す図である。
FIG. 12 is an explanatory diagram of the cross-sectional structure of the mattress 20B according to this embodiment, and is a schematic diagram of the cross-sectional structure of the mattress 20B. FIG. 13 is a side view of three pocket spaces S1 extracted from a plurality of pocket spaces S1 in one row of the mattress 20B according to the present embodiment and viewed in the Y direction. FIG. 14 is a side view of three pocket spaces S1 extracted from a plurality of pocket spaces S1 in one row of the mattress 20B according to the present embodiment and viewed in the X direction. FIG. 15 is a perspective view of a portion of the mattress 20B made up of the nonwoven fabric 224B, the spring coil layer 223B, and the nonwoven fabric 222 (hereinafter also referred to as "pocket coil layer 2") viewed from below. FIG. 16 is an explanatory view of the positions of the cuts 29 in the X direction with respect to the rows of pocket spaces S1 in the X direction. 29 is a diagram showing a top view together with a dotted line 290 indicating a line on which 29 is provided. FIG.
本実施例によるマットレス20Bは、図2Aに示したマットレス20Aに対して、スプリングコイル層223がスプリングコイル層223Bで置換され、かつ、不織布224が不織布224B(第2布の一例)で置換された点が異なる。また、本実施例では、不織布引き剥がし作業にスプリングコイル層223Bから引き剥がされる不織布が、不織布224Bである点で、引き剥がし作業にスプリングコイル層223Bから引き剥がされる不織布が不織布222である上述した実施例と異なる。
In the mattress 20B according to this embodiment, the spring coil layer 223 is replaced with the spring coil layer 223B, and the non-woven fabric 224 is replaced with the non-woven fabric 224B (an example of the second fabric) with respect to the mattress 20A shown in FIG. 2A. Points are different. Further, in this embodiment, the nonwoven fabric to be peeled off from the spring coil layer 223B in the nonwoven fabric peeling operation is the nonwoven fabric 224B, and the nonwoven fabric to be peeled off from the spring coil layer 223B in the peeling operation is the nonwoven fabric 222. Different from the example.
本実施例のスプリングコイル層223Bは、上述した実施例のスプリングコイル層223に対して、ポケット空間S1の数(及びポケット空間S1の列数)が異なる。なお、本実施例は、コイルスプリング223aの列数(X方向に並ぶ列に係る列数)が比較的大きい場合に好適である。本実施例のスプリングコイル層223Bは、一例として、24列のポケット空間S1を有し、24列のそれぞれは、X方向に並んだ20個のポケット空間S1を含む。
The spring coil layer 223B of this embodiment differs in the number of pocket spaces S1 (and the number of rows of pocket spaces S1) from the spring coil layer 223 of the above-described embodiment. This embodiment is suitable when the number of rows of the coil springs 223a (the number of rows related to rows arranged in the X direction) is relatively large. As an example, the spring coil layer 223B of this embodiment has 24 rows of pocket spaces S1, and each of the 24 rows includes 20 pocket spaces S1 arranged in the X direction.
また、本実施例のスプリングコイル層223Bは、上述した実施例のスプリングコイル層223に対して、ミシン目252が、コイルスプリング223aの最も上側の巻線2231よりも下側、かつ、コイルスプリング223aの最も下側の巻線2232よりも上側であって、コイルスプリング223aの軸方向の中心よりも下側に偏った位置に形成される。換言すると、本実施例のスプリングコイル層223Bは、上述した実施例のスプリングコイル層223に対して、不織布250に係る構成が上下反転した構成である。
Further, in the spring coil layer 223B of the present embodiment, the perforation 252 is located below the uppermost winding 2231 of the coil spring 223a and the coil spring 223a, unlike the spring coil layer 223 of the above-described embodiment. It is formed above the lowermost winding 2232 of the coil spring 223a and deviated below the axial center of the coil spring 223a. In other words, the spring coil layer 223B of this embodiment has a configuration in which the configuration related to the nonwoven fabric 250 is upside down with respect to the spring coil layer 223 of the above-described embodiment.
本実施例の不織布224Bは、ミシン目252の延在方向と同じX方向に沿って切れ目29を有する点が、上述した実施例1による不織布224と異なる。
The nonwoven fabric 224B of this embodiment differs from the nonwoven fabric 224 of the first embodiment described above in that it has cuts 29 along the same X direction as the direction in which the perforations 252 extend.
切れ目29は、X方向に沿って連続する態様で形成される。切れ目29は、不織布224BをY方向で離間させないミシン目の形態であってもよいが、好ましくは、不織布224BをY方向で離間させる連続的な切断部の形態である。本実施例では、一例として、切れ目29は、連続的な切断部の形態である。
The cut 29 is formed in a continuous manner along the X direction. The cuts 29 may be in the form of perforations that do not separate the nonwoven fabrics 224B in the Y direction, but are preferably in the form of continuous cuts that separate the nonwoven fabrics 224B in the Y direction. In this embodiment, by way of example, the cut 29 is in the form of a continuous cut.
切れ目29は、上述した不織布引き剥がし作業の作業性を高める機能を有する。具体的には、不織布224Bは、切れ目29を有することで、不織布引き剥がし作業の際に、一度に全体を引き剥がす必要がなくなる。すなわち、不織布224Bは、切れ目29で分離された領域(セクション)ごとに、引き剥がすことができる。これにより、引き剥がす際の力が過大とならず、不織布引き剥がし作業の作業性を効果的に高めることができる。この機能の更なる詳細については、後述する。なお、不織布222には、切れ目29のような切れ目は形成されなくてよい。
The cuts 29 have the function of improving the workability of the nonwoven fabric peeling work described above. Specifically, since the nonwoven fabric 224B has the slits 29, it is not necessary to peel off the entire nonwoven fabric at once when peeling off the nonwoven fabric. In other words, the nonwoven fabric 224B can be peeled off for each region (section) separated by the cuts 29 . As a result, the peeling force does not become excessive, and the workability of the nonwoven fabric peeling work can be effectively improved. Further details of this feature are provided below. It should be noted that the nonwoven fabric 222 may not have cuts such as the cuts 29 .
切れ目29は、不織布引き剥がし作業の作業性を効果的に高める観点から、好ましくは、図15に示すように、X方向の一方側端部から他方側端部まで延在する。すなわち、切れ目29は、不織布224Bを複数の独立したセクションへとY方向に分断する態様で形成される。ただし、変形例では、切れ目29は、X方向のいずれか一方側の端部の手前で終端するように形成されてもよい。すなわち、切れ目29は、不織布224BのX方向の一方側の端部において、所定長さを残して終端してもよい。この場合、切れ目29は、不織布224BのX方向の一方側の端部において、X方向で最も一方側にあるポケット空間S1によりもX方向の一方側で終端する態様で形成されてもよい。なお、所定長さは、比較的小さく、例えば20mm以下であってもよい。
From the viewpoint of effectively improving the workability of the nonwoven fabric peeling work, the cut 29 preferably extends from one side end to the other side end in the X direction, as shown in FIG. That is, the cuts 29 are formed in a manner that divides the nonwoven fabric 224B into a plurality of independent sections in the Y direction. However, in a modified example, the cut 29 may be formed so as to terminate before one of the ends in the X direction. That is, the cut 29 may terminate at one end of the nonwoven fabric 224B in the X direction, leaving a predetermined length. In this case, the cut 29 may be formed at one end of the nonwoven fabric 224B in the X direction so as to terminate on the one side in the X direction from the pocket space S1 on the farthest one side in the X direction. In addition, the predetermined length may be relatively small, for example, 20 mm or less.
切れ目29は、1本でもよいが、本実施例のように、X方向のポケット空間S1の列数が比較的多い場合は、好ましくは、Y方向で互いに離間する態様で複数設けられる。すなわち、切れ目29は、Y方向で互いに離間しつつ、互いに平行にX方向に沿って複数形成されてもよい。この場合、Y方向で隣り合う切れ目29同士の間隔は、X方向のポケット空間S1の1列分のY方向の長さ、すなわちコイルスプリング223aの外径(最大部分の直径)よりも大きく、より好ましくは、X方向のポケット空間S1の2列分のY方向の長さよりも長い。また、切れ目29は、上面視で、複数の列(X方向のポケット空間S1の列)のうちの、Y方向で隣り合う特定の2つの列の間に形成される。本実施例では、図15及び図16に示すように、特定の2つの列は、Y方向で周期的に複数組設定される。すなわち、切れ目29は、Y方向両側の縁部255間で、縁部255から1つ目の切れ目29を含めて、Y方向で略等間隔に形成される。具体的には、切れ目29は、3列ごとに設けられ、3列ごとで隣り合う特定の2つの列の間に形成される。なお、切れ目29が、後述するように、不織布224Bを接着剤84により不織布250に接着した後に形成される場合、切れ目29のY方向のピッチは、厳密に一定とはならない場合がある。従って、切れ目29同士のY方向の距離に関して、略等間隔とは、このような誤差を許容する概念である。
The number of cuts 29 may be one, but when the number of rows of pocket spaces S1 in the X direction is relatively large as in the present embodiment, preferably a plurality of cuts 29 are provided in a manner spaced apart from each other in the Y direction. That is, a plurality of cuts 29 may be formed parallel to each other along the X direction while being separated from each other in the Y direction. In this case, the interval between the cuts 29 adjacent in the Y direction is larger than the length of one row of the pocket spaces S1 in the X direction in the Y direction, that is, the outer diameter (diameter of the maximum portion) of the coil spring 223a. Preferably, it is longer than the Y-direction length of two rows of the X-direction pocket spaces S1. Further, the cut 29 is formed between two specific rows adjacent in the Y direction among the plurality of rows (rows of the pocket spaces S1 in the X direction) when viewed from above. In this embodiment, as shown in FIGS. 15 and 16, a plurality of sets of specific two columns are periodically set in the Y direction. That is, the cuts 29 are formed at approximately equal intervals in the Y direction between the edges 255 on both sides in the Y direction, including the first cut 29 from the edge 255 . Specifically, the cut 29 is provided every three rows and formed between two specific adjacent rows every three rows. As will be described later, if the cuts 29 are formed after the nonwoven fabric 224B is adhered to the nonwoven fabric 250 with the adhesive 84, the pitch of the cuts 29 in the Y direction may not be strictly constant. Therefore, regarding the distance between the cuts 29 in the Y direction, the term "substantially equal intervals" is a concept that allows for such an error.
なお、本実施例では、一例として、不織布224Bは、実質的に、8つの分離した領域(セクション)に分かれ、X方向の8列となる。なお、この場合、不織布224Bの一列は、X方向のポケット空間S1の3列分をカバーすることになる。
It should be noted that, in this embodiment, as an example, the nonwoven fabric 224B is substantially divided into eight separated regions (sections), forming eight rows in the X direction. In this case, one row of the nonwoven fabric 224B covers three rows of the pocket spaces S1 in the X direction.
本実施例によるマットレス20Aの製造方法は、基本的には、上述した実施例1によるマットレス20の製造方法と同様であってよい。この場合、不織布224Bに係る切れ目29は、スプリングコイル層223Bに不織布224Bに係る不織布(切れ目29のない状態の不織布)を接着剤84により固着した後に形成されてもよい。この場合、切れ目29により事前に分断された不織布224Bを、個々にスプリングコイル層223Bに固着する場合に比べて生産性を高めることができる。
The manufacturing method of the mattress 20A according to this embodiment may be basically the same as the manufacturing method of the mattress 20 according to the first embodiment described above. In this case, the cuts 29 related to the nonwoven fabric 224B may be formed after the nonwoven fabric related to the nonwoven fabric 224B (nonwoven fabric without cuts 29) is fixed to the spring coil layer 223B with the adhesive 84. In this case, productivity can be improved compared to the case where the nonwoven fabrics 224B that have been cut in advance by the cuts 29 are individually fixed to the spring coil layers 223B.
次に、図17及び図18を参照して、切れ目29の機能(不織布引き剥がし作業の作業性を高める機能)とともに、マットレス20Bの廃棄方法について説明する。
Next, with reference to FIGS. 17 and 18, the function of the cuts 29 (the function of improving the workability of peeling off the nonwoven fabric) and the disposal method of the mattress 20B will be described.
図17及び図18は、マットレス20Bの廃棄方法の説明図であり、図17は、廃棄方法の初期状態S1700と、不織布224Bの1枚目に係る不織布引き剥がし作業の実行状態S1702とを示す。図17では、初期状態S1700及び実行状態S1702は、マットレス20Bのうちの、ポケットコイル層2(不織布224B、スプリングコイル層223B、及び不織布222からなる部分)を、下側から視た斜視図で示されている。図18は、不織布224Bの3枚目に係る不織布引き剥がし作業の実行状態S1704と、不織布224Bが引き剥がされた状態S1706とを、図17と同様に下側から視た斜視図で示す。
17 and 18 are explanatory diagrams of the disposal method of the mattress 20B, and FIG. 17 shows the initial state S1700 of the disposal method and the execution state S1702 of the nonwoven fabric stripping work related to the first sheet of the nonwoven fabric 224B. In FIG. 17, the initial state S1700 and the execution state S1702 are perspective views of the pocket coil layer 2 (the portion made up of the nonwoven fabric 224B, the spring coil layer 223B, and the nonwoven fabric 222) of the mattress 20B as viewed from below. It is FIG. 18 shows a state S1704 in which the third nonwoven fabric 224B is peeled off, and a state S1706 in which the nonwoven fabric 224B is peeled off, as viewed from below in a perspective view similar to FIG.
本実施例においても、マットレス20Bの廃棄方法は、上述した実施例のマットレス20の廃棄方法と実質的に同様に実現される。すなわち、マットレス20Bの廃棄方法は、不織布224Bをスプリングコイル層223Bから引き剥がすことで、不織布250のミシン目252を破断させて各ポケット空間S1の上側を開口させる作業(すなわち不織布引き剥がし作業)と、開口した各ポケット空間S1の上側からコイルスプリング223a、223bを取り出す作業とを含む。なお、これらの作業は、人手により実現されるが、これらの作業の一部又は全部は、ロボットにより実現されてもよい。
Also in this embodiment, the method of discarding the mattress 20B is realized in substantially the same manner as the method of discarding the mattress 20 of the above-described embodiment. That is, the method of discarding the mattress 20B is the operation of tearing off the nonwoven fabric 224B from the spring coil layer 223B to break the perforations 252 of the nonwoven fabric 250 and open the upper side of each pocket space S1 (that is, the nonwoven fabric peeling work). and removing the coil springs 223a and 223b from the upper side of each open pocket space S1. Although these operations are performed manually, some or all of these operations may be performed by robots.
本実施例によれば、図17及び図18に示すように、不織布224BがX方向の切れ目29を有することで、不織布引き剥がし作業の作業性を効果的に高めることができる。具体的には、作業者は、まず、廃棄対象のマットレス20Bからポケットコイル層2以外の部分(表面生地234A等)を除去し、ポケットコイル層2だけの状態にし、ポケットコイル層2を上下反転させて、ポケットコイル層2の不織布224Bが上側となる初期状態S1700を形成する。次いで、作業者は、初期状態S1700から、端の切れ目29を利用して、不織布224Bの最も端の列を上方向へ引っ張る態様で引き剥がす(矢印R170参照)。作業者は、不織布224Bの各列に対して、このような作業を繰り返し(図18の実行状態S1704参照)、不織布224Bのすべての列(すなわち不織布224B全体)が引き剥がされた状態S1706を形成して、不織布引き剥がし作業を終える。そして、作業者は、不織布引き剥がし作業を終えると、ミシン目252よりも上側(作業者にとって上側)が開口した各ポケット空間S1からコイルスプリング223a、223bを取り出す作業を行う。
According to this embodiment, as shown in FIGS. 17 and 18, the nonwoven fabric 224B has the cuts 29 in the X direction, thereby effectively improving the workability of the nonwoven fabric peeling work. Specifically, the operator first removes portions other than the pocket coil layer 2 (such as the surface fabric 234A) from the mattress 20B to be discarded, leaving only the pocket coil layer 2, and then flips the pocket coil layer 2 upside down. to form an initial state S1700 in which the nonwoven fabric 224B of the pocket coil layer 2 is on the upper side. Next, from the initial state S1700, the worker pulls the endmost row of the nonwoven fabric 224B upward using the end cut 29 (see arrow R170). The operator repeats such work for each row of the nonwoven fabric 224B (see execution state S1704 in FIG. 18) to form a state S1706 in which all rows of the nonwoven fabric 224B (that is, the entire nonwoven fabric 224B) are torn off. to complete the non-woven fabric stripping operation. After finishing the nonwoven fabric peeling work, the worker takes out the coil springs 223a and 223b from the pocket spaces S1 opened above the perforations 252 (upper side for the worker).
ところで、接着剤84による不織布250と不織布224Bとの間の接合強度が不足すると、不織布引き剥がし作業の際に、ミシン目252を効果的に破断させることが難しくなる。例えば、不織布引き剥がし作業の際に、ミシン目252の破断よりも前に、接着剤84による接合部位が破断してしまうと、ミシン目252を破断させることができない。従って、接着剤84による不織布250と不織布224Bとの間の接合強度は、ミシン目252が先に破断するように、比較的高く設定する必要がある。しかしながら、その反面、接着剤84による不織布250と不織布224Bとの間の接合強度を適切に確保すると、不織布224B全体を同時に引き剥がす際に要する力が過大となりうる。また、不織布224B全体が比較的大きく、それに応じて接着剤84の塗布箇所が多くなると、不織布224B全体を同時に引き剥がす際に要する力が過大となりうる。
By the way, if the bonding strength between the nonwoven fabric 250 and the nonwoven fabric 224B by the adhesive 84 is insufficient, it becomes difficult to effectively break the perforations 252 when peeling off the nonwoven fabric. For example, when the non-woven fabric is peeled off, the perforation 252 cannot be broken if the bonding portion with the adhesive 84 is broken before the perforation 252 is broken. Therefore, the bonding strength between the nonwoven fabric 250 and the nonwoven fabric 224B by the adhesive 84 needs to be set relatively high so that the perforations 252 break first. On the other hand, however, if the bonding strength between the nonwoven fabric 250 and the nonwoven fabric 224B by the adhesive 84 is appropriately ensured, the force required to peel off the entire nonwoven fabric 224B at the same time may become excessive. In addition, if the nonwoven fabric 224B as a whole is relatively large and the adhesive 84 is applied to a large number of places accordingly, the force required to peel off the entire nonwoven fabric 224B at the same time may become excessive.
これに対して、本実施例によれば、不織布224B全体を同時に引き剥がすことに代えて、不織布224Bを、切れ目29によって分けられた列ごとに引き剥がすことができる。これにより、引き剥がす際に要する力が過大とならず、不織布引き剥がし作業の作業性を高めることができる。
On the other hand, according to this embodiment, instead of peeling off the entire nonwoven fabric 224B at the same time, the nonwoven fabric 224B can be peeled off for each row divided by the cuts 29. As a result, the force required for peeling off the nonwoven fabric is not excessive, and the workability of the nonwoven fabric peeling work can be improved.
なお、本実施例による切れ目29が、図2に示したマットレス20に対して適用される場合、スプリングコイル層223がスプリングコイル層223Bで置換され、かつ、不織布222に、不織布224Bの切れ目29と同様の切れ目が形成されてもよい。あるいは、不織布222に代えて又は加えて、不織布224に切れ目29と同様の切れ目が形成されてもよい。
It should be noted that when the cuts 29 according to this embodiment are applied to the mattress 20 shown in FIG. Similar cuts may be formed. Alternatively, instead of or in addition to nonwoven fabric 222 , nonwoven fabric 224 may have cuts similar to cuts 29 .
なお、上述したように、本実施例のスプリングコイル層223Bは、上述した実施例のスプリングコイル層223に対して、不織布250に係る構成が上下反転した構成であるので、接着剤80は、図14に示すように、ミシン目252よりも上側だけに付与されてもよい。接着剤80がミシン目252よりも下側にも付与されていると、不織布引き剥がし作業の作業性が悪くなる。すなわち、接着剤80がミシン目252よりも下側にも付与される場合、不織布引き剥がし作業の際の力は、接着剤80を介して、Y方向で隣り合う列の不織布250の間(切れ目29を介して隣り合う列の不織布250間)にも、及ぶので、ミシン目252を破断させる際に要する力が大きくなる。これに対して、図14に示すように、接着剤80がミシン目252よりも上側だけに付与される場合には、切れ目29を介して隣り合う列の不織布250間には、接着剤80を介して不織布引き剥がし作業の力が有意に及ぶことがない。これにより、引き剥がす際に要する力が過大とならず、不織布引き剥がし作業の作業性を高めることができる。
As described above, the spring coil layer 223B of the present embodiment has a configuration in which the configuration related to the nonwoven fabric 250 is inverted upside down with respect to the spring coil layer 223 of the above-described embodiment. 14, it may be provided only above the perforations 252. FIG. If the adhesive 80 is also applied below the perforations 252, the workability of peeling off the nonwoven fabric will be deteriorated. That is, when the adhesive 80 is also applied below the perforations 252 , the force during the nonwoven fabric peeling operation is applied between the nonwoven fabrics 250 in adjacent rows in the Y direction via the adhesive 80 (breaks 250 ). 29), the force required to break the perforations 252 increases. On the other hand, as shown in FIG. 14, when the adhesive 80 is applied only above the perforations 252, the adhesive 80 is not applied between adjacent rows of the nonwoven fabrics 250 via the cuts 29. The force of the nonwoven stripping operation does not significantly extend through the nonwoven fabric. As a result, the force required for peeling off the nonwoven fabric is not excessive, and the workability of the nonwoven fabric peeling work can be improved.
以上、各実施例について詳述したが、特定の実施例に限定されるものではなく、特許請求の範囲に記載された範囲内において、種々の変形及び変更が可能である。また、前述した実施例の構成要素を全部又は複数を組み合わせることも可能である。
Although each embodiment has been described in detail above, it is not limited to a specific embodiment, and various modifications and changes are possible within the scope described in the claims. It is also possible to combine all or more of the constituent elements of the above-described embodiments.
例えば、上述した実施例では、ミシン目252は、コイルスプリング223a、223bの上下方向の中心に対して上側に偏った位置に形成されているが、これに代えて又は加えて、ミシン目252は、コイルスプリング223a、223bの上下方向の中心に対して下側に偏った位置に、形成されてもよい。この場合、逆側から(すなわち、下側の不織布224をスプリングコイル層223から剥がす方向に)引っ張ってミシン目252を破断させやすい構成を実現できる。例えば、マットレス20が上下変更可能である場合、ミシン目252が、コイルスプリング223a、223bの上下方向の中心に対して上側に偏った位置と、コイルスプリング223a、223bの上下方向の中心に対して下側に偏った位置とにそれぞれ形成されていれば、ユーザはマットレス20の上下方向を意識することなく、不織布222又は不織布224を引っ張って上側又は下側のミシン目252を破断させることができる。あるいは、ミシン目252は、コイルスプリング223a、223bの上下方向の中心に付近に(上下方向の偏りのない位置に)形成されてもよい。
For example, in the embodiment described above, the perforation 252 is formed at a position biased upward with respect to the vertical center of the coil springs 223a and 223b. , the coil springs 223a and 223b may be formed at positions biased downward with respect to the vertical center of the coil springs 223a and 223b. In this case, it is possible to realize a configuration in which the perforations 252 are easily broken by pulling from the opposite side (that is, in the direction in which the lower nonwoven fabric 224 is peeled off from the spring coil layer 223). For example, when the mattress 20 can be moved up and down, the perforations 252 are located at a position biased upward with respect to the vertical center of the coil springs 223a and 223b and with respect to the vertical center of the coil springs 223a and 223b. , the user can pull the nonwoven fabric 222 or the nonwoven fabric 224 to break the upper or lower perforations 252 without being conscious of the vertical direction of the mattress 20. . Alternatively, the perforation 252 may be formed near the center of the coil springs 223a and 223b in the vertical direction (at a position where there is no deviation in the vertical direction).
また、図12以降を参照して上述した実施例2では、切れ目29は、ミシン目252と同じX方向に沿ってのみに形成されているが、これに限られない。X方向に沿って形成される切れ目29に対して交差する態様でY方向の切れ目(図示せず)が形成されてもよい。この場合、不織布224Bにおける切れ目で分離された領域(セクション)のX方向の長さが、Y方向の切れ目により短くなるので、領域数が増加する反面、不織布引き剥がし作業の作業性を高めることができる。
In addition, in the second embodiment described above with reference to FIG. 12 and subsequent figures, the cut line 29 is formed only along the same X direction as the perforation line 252, but it is not limited to this. A cut in the Y direction (not shown) may be formed in a manner intersecting with the cut 29 formed along the X direction. In this case, the length in the X direction of the regions (sections) separated by the cuts in the nonwoven fabric 224B is shortened by the cuts in the Y direction. can.
上記の実施例1の開示に関連して、以下の付記を更に開示する。
In connection with the disclosure of Example 1 above, the following additional remarks are further disclosed.
[付記1]
上下方向に対して垂直な平面内で直交する第1方向及び第2方向に沿って配置された複数のポケットコイルを有するマットレスであって、
個々のポケットコイルを形成するコイルスプリングと、
複数の前記コイルスプリングを収容する複数のポケット空間であって、前記第1方向に並ぶ複数のポケット空間を、1枚で形成する第1布と、を備え、
1枚の前記第1布は、前記第2方向で複数の前記ポケット空間の中心に対し両側に、前記第1方向に連続するミシン目を有し、
前記ミシン目は、前記第1布における前記第2方向で2本の前記ミシン目の間の部分を上方向又は下方向(ポケット空間から離れる方向)に引っ張ることで破断するように形成される、マットレス。 [Appendix 1]
A mattress having a plurality of pocket coils arranged along a first direction and a second direction perpendicular to each other in a plane perpendicular to the vertical direction,
coil springs forming individual pocket coils;
a plurality of pocket spaces for accommodating a plurality of the coil springs, the plurality of pocket spaces lined up in the first direction being formed by a single piece of first cloth;
one sheet of the first cloth has perforations continuous in the first direction on both sides with respect to the center of the plurality of pocket spaces in the second direction;
The perforations are formed so as to be broken by pulling the portion between the two perforations in the second direction on the first cloth upward or downward (direction away from the pocket space). mattress.
上下方向に対して垂直な平面内で直交する第1方向及び第2方向に沿って配置された複数のポケットコイルを有するマットレスであって、
個々のポケットコイルを形成するコイルスプリングと、
複数の前記コイルスプリングを収容する複数のポケット空間であって、前記第1方向に並ぶ複数のポケット空間を、1枚で形成する第1布と、を備え、
1枚の前記第1布は、前記第2方向で複数の前記ポケット空間の中心に対し両側に、前記第1方向に連続するミシン目を有し、
前記ミシン目は、前記第1布における前記第2方向で2本の前記ミシン目の間の部分を上方向又は下方向(ポケット空間から離れる方向)に引っ張ることで破断するように形成される、マットレス。 [Appendix 1]
A mattress having a plurality of pocket coils arranged along a first direction and a second direction perpendicular to each other in a plane perpendicular to the vertical direction,
coil springs forming individual pocket coils;
a plurality of pocket spaces for accommodating a plurality of the coil springs, the plurality of pocket spaces lined up in the first direction being formed by a single piece of first cloth;
one sheet of the first cloth has perforations continuous in the first direction on both sides with respect to the center of the plurality of pocket spaces in the second direction;
The perforations are formed so as to be broken by pulling the portion between the two perforations in the second direction on the first cloth upward or downward (direction away from the pocket space). mattress.
[付記2]
前記第1布の前記部分に固着される第2布を更に備える、付記1に記載のマットレス。 [Appendix 2]
2. The mattress ofClaim 1, further comprising a second fabric affixed to said portion of said first fabric.
前記第1布の前記部分に固着される第2布を更に備える、付記1に記載のマットレス。 [Appendix 2]
2. The mattress of
[付記3]
前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間が、前記第2方向に隣り合う態様で複数の列を形成するように、列ごとに1枚ずつ用いられ、
前記第2布は、前記複数の列に係る複数の前記第1布に固着され、前記複数の列に係る複数の前記ポケット空間の上側又は下側で、前記第1方向及び前記第2方向により形成される平面内に延在する、付記2に記載のマットレス。 [Appendix 3]
The first cloth is used one by one for each row so that the plurality of pocket spaces arranged in the first direction form a plurality of rows in a manner adjacent to the second direction,
The second cloth is fixed to the plurality of first cloths associated with the plurality of rows, and is above or below the plurality of pocket spaces associated with the plurality of rows in the first direction and the second direction. 3. Mattress according toclause 2, extending in a defined plane.
前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間が、前記第2方向に隣り合う態様で複数の列を形成するように、列ごとに1枚ずつ用いられ、
前記第2布は、前記複数の列に係る複数の前記第1布に固着され、前記複数の列に係る複数の前記ポケット空間の上側又は下側で、前記第1方向及び前記第2方向により形成される平面内に延在する、付記2に記載のマットレス。 [Appendix 3]
The first cloth is used one by one for each row so that the plurality of pocket spaces arranged in the first direction form a plurality of rows in a manner adjacent to the second direction,
The second cloth is fixed to the plurality of first cloths associated with the plurality of rows, and is above or below the plurality of pocket spaces associated with the plurality of rows in the first direction and the second direction. 3. Mattress according to
[付記4]
一の列に係る前記第1布は、前記一の列に係る複数の前記ポケット空間のそれぞれの前記第2方向一方側の側部に、該第1布の端部同士を接合する第2溶着部を有し、
前記ミシン目は、前記第2溶着部よりも上側又は下側に位置する、付記3に記載のマットレス。 [Appendix 4]
The first cloth associated with one row is second welded to join the ends of the first cloth to the side portions on one side in the second direction of each of the plurality of pocket spaces associated with the one row. has a part
3. The mattress according to appendix 3, wherein the perforations are positioned above or below the second welding portion.
一の列に係る前記第1布は、前記一の列に係る複数の前記ポケット空間のそれぞれの前記第2方向一方側の側部に、該第1布の端部同士を接合する第2溶着部を有し、
前記ミシン目は、前記第2溶着部よりも上側又は下側に位置する、付記3に記載のマットレス。 [Appendix 4]
The first cloth associated with one row is second welded to join the ends of the first cloth to the side portions on one side in the second direction of each of the plurality of pocket spaces associated with the one row. has a part
3. The mattress according to appendix 3, wherein the perforations are positioned above or below the second welding portion.
[付記5]
1枚の前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間のそれぞれを仕切る第1溶着部を有し、
前記第1溶着部は、上下方向で前記ミシン目の手前で終端する態様で、上下方向に沿って形成される、付記1から4のうちのいずれか1項に記載のマットレス。 [Appendix 5]
one sheet of the first cloth has a first welded portion that partitions each of the plurality of pocket spaces arranged in the first direction;
5. The mattress according to any one ofappendices 1 to 4, wherein the first welded portion is formed along the vertical direction in a manner that terminates in the vertical direction before the perforation.
1枚の前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間のそれぞれを仕切る第1溶着部を有し、
前記第1溶着部は、上下方向で前記ミシン目の手前で終端する態様で、上下方向に沿って形成される、付記1から4のうちのいずれか1項に記載のマットレス。 [Appendix 5]
one sheet of the first cloth has a first welded portion that partitions each of the plurality of pocket spaces arranged in the first direction;
5. The mattress according to any one of
[付記6]
前記ミシン目は、前記コイルスプリングの最も上側の巻線よりも下側、かつ、前記コイルスプリングの最も下側の巻線よりも上側であって、前記コイルスプリングの軸方向の中心よりも上側又は下側に偏った位置に形成される、付記1~5のうちのいずれか1項に記載のマットレス。 [Appendix 6]
The perforations are below the uppermost winding of the coil spring, above the lowermost winding of the coil spring, and above the axial center of the coil spring, or 6. A mattress according to any one ofclauses 1 to 5, which is formed in a downwardly biased position.
前記ミシン目は、前記コイルスプリングの最も上側の巻線よりも下側、かつ、前記コイルスプリングの最も下側の巻線よりも上側であって、前記コイルスプリングの軸方向の中心よりも上側又は下側に偏った位置に形成される、付記1~5のうちのいずれか1項に記載のマットレス。 [Appendix 6]
The perforations are below the uppermost winding of the coil spring, above the lowermost winding of the coil spring, and above the axial center of the coil spring, or 6. A mattress according to any one of
また、上記の実施例2の開示に関連して、以下の付記を更に開示する。
In addition, the following additional remarks are further disclosed in connection with the disclosure of Example 2 above.
[付記11]
上下方向に対して垂直な平面内で直交する第1方向及び第2方向に沿って配置された複数のポケットコイルを有するマットレスであって、
個々のポケットコイルを形成するコイルスプリングと、
複数の前記コイルスプリングを収容する複数のポケット空間を形成する第1布と、
複数の前記ポケット空間を上下方向の第1側から全体を覆うように平面状に延在し、前記第1布に固着される第2布とを備え、
前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間の列に対して、一列ごとに一枚ずつ、複数枚設けられ、
複数枚の前記第1布のそれぞれは、前記第2方向で複数の前記ポケット空間の両側に、前記第1方向に連続するミシン目を有し、
前記第2布は、前記第1方向に沿って切れ目を有する、マットレス。 [Appendix 11]
A mattress having a plurality of pocket coils arranged along a first direction and a second direction perpendicular to each other in a plane perpendicular to the vertical direction,
coil springs forming individual pocket coils;
a first cloth forming a plurality of pocket spaces for accommodating the plurality of coil springs;
a second cloth that extends in a plane so as to cover the entirety of the plurality of pocket spaces from a first side in the vertical direction and is fixed to the first cloth;
The first cloth is provided in a plurality of rows, one for each row, for a plurality of rows of the pocket spaces arranged in the first direction,
Each of the plurality of first cloths has perforations continuous in the first direction on both sides of the plurality of pocket spaces in the second direction,
The mattress, wherein the second fabric has cuts along the first direction.
上下方向に対して垂直な平面内で直交する第1方向及び第2方向に沿って配置された複数のポケットコイルを有するマットレスであって、
個々のポケットコイルを形成するコイルスプリングと、
複数の前記コイルスプリングを収容する複数のポケット空間を形成する第1布と、
複数の前記ポケット空間を上下方向の第1側から全体を覆うように平面状に延在し、前記第1布に固着される第2布とを備え、
前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間の列に対して、一列ごとに一枚ずつ、複数枚設けられ、
複数枚の前記第1布のそれぞれは、前記第2方向で複数の前記ポケット空間の両側に、前記第1方向に連続するミシン目を有し、
前記第2布は、前記第1方向に沿って切れ目を有する、マットレス。 [Appendix 11]
A mattress having a plurality of pocket coils arranged along a first direction and a second direction perpendicular to each other in a plane perpendicular to the vertical direction,
coil springs forming individual pocket coils;
a first cloth forming a plurality of pocket spaces for accommodating the plurality of coil springs;
a second cloth that extends in a plane so as to cover the entirety of the plurality of pocket spaces from a first side in the vertical direction and is fixed to the first cloth;
The first cloth is provided in a plurality of rows, one for each row, for a plurality of rows of the pocket spaces arranged in the first direction,
Each of the plurality of first cloths has perforations continuous in the first direction on both sides of the plurality of pocket spaces in the second direction,
The mattress, wherein the second fabric has cuts along the first direction.
[付記12]
前記切れ目は、前記第2布における前記第1方向の一方側端部から他方側端部まで延在する、付記11に記載のマットレス。 [Appendix 12]
12. The mattress of claim 11, wherein the cut extends from one end of the second fabric to the other end in the first direction.
前記切れ目は、前記第2布における前記第1方向の一方側端部から他方側端部まで延在する、付記11に記載のマットレス。 [Appendix 12]
12. The mattress of claim 11, wherein the cut extends from one end of the second fabric to the other end in the first direction.
[付記13]
前記切れ目は、前記第2方向で互いに離間する態様で複数設けられ、
前記切れ目は、上面視で、複数の前記列のうちの、前記第2方向で隣り合う特定の2つの列の間に形成される、付記11又は12に記載のマットレス。 [Appendix 13]
A plurality of the cuts are provided in a manner spaced apart from each other in the second direction,
13. The mattress according to appendix 11 or 12, wherein the cut is formed between two specific rows of the plurality of rows that are adjacent in the second direction when viewed from above.
前記切れ目は、前記第2方向で互いに離間する態様で複数設けられ、
前記切れ目は、上面視で、複数の前記列のうちの、前記第2方向で隣り合う特定の2つの列の間に形成される、付記11又は12に記載のマットレス。 [Appendix 13]
A plurality of the cuts are provided in a manner spaced apart from each other in the second direction,
13. The mattress according to appendix 11 or 12, wherein the cut is formed between two specific rows of the plurality of rows that are adjacent in the second direction when viewed from above.
[付記14]
前記切れ目は、前記第2方向で略等間隔に形成される、付記13に記載のマットレス。 [Appendix 14]
14. The mattress of claim 13, wherein the cuts are formed at substantially equal intervals in the second direction.
前記切れ目は、前記第2方向で略等間隔に形成される、付記13に記載のマットレス。 [Appendix 14]
14. The mattress of claim 13, wherein the cuts are formed at substantially equal intervals in the second direction.
[付記15]
前記第2方向で隣り合う2つの前記切れ目の間、又は、前記第2布の前記第2方向の縁部と該縁部に隣り合う前記切れ目の間には、上面視で、前記列が2列以上設けられる、付記13又は14に記載のマットレス。 [Appendix 15]
Between the two adjacent cuts in the second direction, or between the edge of the second cloth in the second direction and the cut adjacent to the edge, there are two rows in a top view. 15. A mattress according to clause 13 or 14, provided in more than one row.
前記第2方向で隣り合う2つの前記切れ目の間、又は、前記第2布の前記第2方向の縁部と該縁部に隣り合う前記切れ目の間には、上面視で、前記列が2列以上設けられる、付記13又は14に記載のマットレス。 [Appendix 15]
Between the two adjacent cuts in the second direction, or between the edge of the second cloth in the second direction and the cut adjacent to the edge, there are two rows in a top view. 15. A mattress according to clause 13 or 14, provided in more than one row.
[付記16]
1枚の前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間のそれぞれを仕切る第1溶着部を有し、
前記第1溶着部は、上下方向で前記ミシン目に対して前記第1側とは逆の第2側だけに、上下方向に沿って形成される、付記11から15のうちのいずれか1項に記載のマットレス。 [Appendix 16]
one sheet of the first cloth has a first welded portion that partitions each of the plurality of pocket spaces arranged in the first direction;
16. Any one of Appendices 11 to 15, wherein the first welded portion is formed along the vertical direction only on a second side opposite to the first side with respect to the perforations in the vertical direction. The mattress described in .
1枚の前記第1布は、前記第1方向に並ぶ複数の前記ポケット空間のそれぞれを仕切る第1溶着部を有し、
前記第1溶着部は、上下方向で前記ミシン目に対して前記第1側とは逆の第2側だけに、上下方向に沿って形成される、付記11から15のうちのいずれか1項に記載のマットレス。 [Appendix 16]
one sheet of the first cloth has a first welded portion that partitions each of the plurality of pocket spaces arranged in the first direction;
16. Any one of Appendices 11 to 15, wherein the first welded portion is formed along the vertical direction only on a second side opposite to the first side with respect to the perforations in the vertical direction. The mattress described in .
[付記17]
各列に係る前記第1布は、前記第2方向で隣り合う前記第1布同士が、前記第2方向の側部にて接着されており、
前記ミシン目は、前記接着される部分よりも前記第1側に位置する、付記11から16のうちのいずれか1項に記載のマットレス。 [Appendix 17]
In the first cloths in each row, adjacent first cloths in the second direction are bonded to each other at side portions in the second direction,
17. The mattress of any one of clauses 11-16, wherein the perforation is located on the first side of the adhered portion.
各列に係る前記第1布は、前記第2方向で隣り合う前記第1布同士が、前記第2方向の側部にて接着されており、
前記ミシン目は、前記接着される部分よりも前記第1側に位置する、付記11から16のうちのいずれか1項に記載のマットレス。 [Appendix 17]
In the first cloths in each row, adjacent first cloths in the second direction are bonded to each other at side portions in the second direction,
17. The mattress of any one of clauses 11-16, wherein the perforation is located on the first side of the adhered portion.
7 ベッドフレーム
20、20A、20B マットレス
21 上側キルティング部
22 詰め物部
23 下側キルティング部
25 不織布シート
80 接着剤
82 接着剤
84 接着剤
211 表面生地
212 人工綿
213 ソフトウレタン
214 不織布
220 不織布
221 ソフトウレタン
222 不織布
223、223B スプリングコイル層
223a コイルスプリング
223b コイルスプリング
224、224B 不織布
225 ソフトウレタン
226 不織布
231 不織布
232 ソフトウレタン
233 人工綿
234 表面生地
250 不織布
252 ミシン目
256 溶着部
258 溶着部
400 ミシン目形成刃
2231 巻線
2232 巻線 7 Bed frames 20, 20A,20B Mattress 21 Upper quilting part 22 Stuffing part 23 Lower quilting part 25 Non-woven fabric sheet 80 Adhesive 82 Adhesive 84 Adhesive 211 Surface fabric 212 Artificial cotton 213 Soft urethane 214 Non-woven fabric 220 Non-woven fabric 221 Soft urethane 222 Non-woven fabric 223, 223B Spring coil layer 223a Coil spring 223b Coil spring 224, 224B Non-woven fabric 225 Soft urethane 226 Non-woven fabric 231 Non-woven fabric 232 Soft urethane 233 Artificial cotton 234 Surface fabric 250 Non-woven fabric 252 Perforation 256 Welding part 258 Welding part 400 Perforation forming blade 2231 Winding 2232 Winding
20、20A、20B マットレス
21 上側キルティング部
22 詰め物部
23 下側キルティング部
25 不織布シート
80 接着剤
82 接着剤
84 接着剤
211 表面生地
212 人工綿
213 ソフトウレタン
214 不織布
220 不織布
221 ソフトウレタン
222 不織布
223、223B スプリングコイル層
223a コイルスプリング
223b コイルスプリング
224、224B 不織布
225 ソフトウレタン
226 不織布
231 不織布
232 ソフトウレタン
233 人工綿
234 表面生地
250 不織布
252 ミシン目
256 溶着部
258 溶着部
400 ミシン目形成刃
2231 巻線
2232 巻線 7 Bed frames 20, 20A,
Claims (9)
- ポケットコイルを有するマットレスであって、
前記ポケットコイルを形成するコイルスプリングと、
当該コイルスプリングを収容するポケット空間を形成する第1布と、
前記ポケット空間の全体を覆うように平面状に延在する第2布とを備え、
前記第1布は、前記ポケット空間の列に対して、一列ごとに一枚ずつ設けられ、
前記第1布は、複数の前記ポケット空間の中心に対し両側に、第1方向に連続するミシン目を有し、
前記第2布は、前記第1布における2本の前記ミシン目の間の部分であって、前記第1方向に交差する第2方向での2本の前記ミシン目の間の部分に固着され、
前記ミシン目は、前記第1布における前記部分を前記ポケット空間から離れる方向に引っ張ることで破断するように形成される、マットレス。 A mattress having pocketed coils,
a coil spring forming the pocket coil;
a first cloth forming a pocket space for accommodating the coil spring;
a second cloth extending in a plane so as to cover the entire pocket space;
The first cloth is provided one by one for each row of the pocket spaces,
The first cloth has perforations continuous in a first direction on both sides with respect to the center of the plurality of pocket spaces,
The second cloth is fixed to a portion between the two perforations in the first cloth, the portion between the two perforations in a second direction crossing the first direction. ,
The mattress, wherein the perforation is formed to break by pulling the portion of the first cloth away from the pocket space. - 前記第2布は、前記第1方向に沿って切れ目を有する、
請求項1に記載のマットレス。 The second cloth has cuts along the first direction,
A mattress according to claim 1 . - 前記切れ目は、前記第2布における前記第1方向の一方側端部から他方側端部まで延在する、
請求項2に記載のマットレス。 The cut extends from one end of the second cloth to the other end in the first direction,
3. A mattress according to claim 2. - 前記切れ目は、前記第1方向に交差する第2方向で互いに離間する態様で複数設けられ、
前記切れ目は、上面視で、複数の前記列のうちの、前記第2方向で隣り合う特定の列の間に形成される、
請求項2又は3に記載のマットレス。 A plurality of the cuts are provided in a manner spaced apart from each other in a second direction that intersects the first direction,
The break is formed between specific rows adjacent in the second direction among the plurality of rows in a top view,
4. A mattress according to claim 2 or 3. - 前記ミシン目は、上下方向で前記コイルスプリングの軸方向の中心よりも前記第2布に近い側に偏った位置に形成される、
請求項1から4のうちのいずれか1項に記載のマットレス。 The perforation is formed at a position that is biased in the vertical direction toward the side closer to the second cloth than the axial center of the coil spring.
5. A mattress according to any one of claims 1-4. - 請求項2から4のうちのいずれか1項に記載のマットレスの製造方法であって、
前記第2布を前記第1布に固着させる工程と、
前記第1布に固着させた前記第2布に対して、前記切れ目を入れる工程とを含む、製造方法。 A method for manufacturing the mattress according to any one of claims 2 to 4,
affixing the second fabric to the first fabric;
and a step of making the cut in the second cloth fixed to the first cloth. - 請求項2から4のうちのいずれか1項に記載のマットレスの製造方法であって、
前記ミシン目を有する前記第1布を準備する準備工程と、
一の前記第1布における前記第2方向で前記ミシン目の間の中心に、前記ポケット空間の一列分の数の前記コイルスプリングの中心を、位置付ける工程と、
前記第1布の前記第2方向の端部同士を重ね合わせることで、
前記コイルスプリングを前記第1布で包む工程とを含む、製造方法。 A method for manufacturing the mattress according to any one of claims 2 to 4,
a preparation step of preparing the first cloth having the perforations;
positioning the centers of the coil springs for one row of the pocket spaces at the center between the perforations in the second direction in one of the first fabrics;
By overlapping the ends of the first cloth in the second direction,
and wrapping the coil spring with the first cloth. - 前記準備工程は、複数枚分の前記第1布を形成するための一枚の布に対して、
複数枚分用のカットを行うと同時に、前記ミシン目を入れる工程を含む、請求項7に記載の製造方法。 In the preparation step, for one cloth for forming the first cloth for a plurality of sheets,
8. The manufacturing method according to claim 7, including the step of making the perforations at the same time as cutting for a plurality of sheets. - 請求項2から4のうちのいずれか1項に記載のマットレスの廃棄方法であって、
前記第2布を前記第1布から引き剥がすことで、前記ミシン目を介して前記第1布を破る第1工程と、
前記第1工程の後に、前記第1布が破られることで開口した前記ポケット空間から、前記コイルスプリングを取り出す第2工程とを含む、廃棄方法。 A method for discarding a mattress according to any one of claims 2 to 4,
a first step of tearing the first cloth through the perforations by peeling the second cloth from the first cloth;
and a second step of taking out the coil spring from the pocket space opened by tearing the first cloth after the first step.
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Cited By (2)
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EP4445799A1 (en) * | 2023-04-12 | 2024-10-16 | Emma Sleep GmbH | Spring core assembly and mattress assembly |
WO2024213751A1 (en) * | 2023-04-12 | 2024-10-17 | Emma Sleep Gmbh | Mattress assembly and method of adjusting a mattress assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005065726A (en) * | 2003-08-22 | 2005-03-17 | Aisin Seiki Co Ltd | Pocket coil mattress |
JP2010012055A (en) * | 2008-07-04 | 2010-01-21 | Dreambed Co Ltd | Pocket coil sheet with through-holes |
JP2012095785A (en) * | 2010-11-01 | 2012-05-24 | Union Bed Seizo Kk | Pocket coil mattress |
GB2576216A (en) * | 2018-08-10 | 2020-02-12 | Hs Products Ltd | Recycling of resilient units |
-
2022
- 2022-05-11 CN CN202280006622.8A patent/CN116322436A/en active Pending
- 2022-05-11 WO PCT/JP2022/019970 patent/WO2022249887A1/en active Application Filing
- 2022-05-23 TW TW111119059A patent/TW202300069A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005065726A (en) * | 2003-08-22 | 2005-03-17 | Aisin Seiki Co Ltd | Pocket coil mattress |
JP2010012055A (en) * | 2008-07-04 | 2010-01-21 | Dreambed Co Ltd | Pocket coil sheet with through-holes |
JP2012095785A (en) * | 2010-11-01 | 2012-05-24 | Union Bed Seizo Kk | Pocket coil mattress |
GB2576216A (en) * | 2018-08-10 | 2020-02-12 | Hs Products Ltd | Recycling of resilient units |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4445799A1 (en) * | 2023-04-12 | 2024-10-16 | Emma Sleep GmbH | Spring core assembly and mattress assembly |
WO2024213674A1 (en) * | 2023-04-12 | 2024-10-17 | Emma Sleep Gmbh | Spring core assembly and mattress assembly |
WO2024213751A1 (en) * | 2023-04-12 | 2024-10-17 | Emma Sleep Gmbh | Mattress assembly and method of adjusting a mattress assembly |
Also Published As
Publication number | Publication date |
---|---|
CN116322436A (en) | 2023-06-23 |
TW202300069A (en) | 2023-01-01 |
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