CN101229002B - Apparatus for packing free terminal convolutions of spring assembly used in mattress - Google Patents
Apparatus for packing free terminal convolutions of spring assembly used in mattress Download PDFInfo
- Publication number
- CN101229002B CN101229002B CN2008100814184A CN200810081418A CN101229002B CN 101229002 B CN101229002 B CN 101229002B CN 2008100814184 A CN2008100814184 A CN 2008100814184A CN 200810081418 A CN200810081418 A CN 200810081418A CN 101229002 B CN101229002 B CN 101229002B
- Authority
- CN
- China
- Prior art keywords
- nonwoven
- spring
- coiling circle
- terminal
- spring assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 10
- 239000011496 polyurethane foam Substances 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
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
- A47C27/06—Spring inlays
- A47C27/063—Spring inlays wrapped or otherwise protected
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
- A47C23/043—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled using wound springs
-
- 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
- A47C27/05—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays with padding material, e.g. foamed material, in top, bottom, or side layers
-
- 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
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
There is provided an innerspring assembly used in a mattress for absorbing external loads. An outermost coil spring of a spring array is secured in a space between upper and lower border wires and by pins, and helical coils are disposed in row directions on upper and lower portions of the spring array to knit an adjacent coil spring, such that each coil spring has a free terminal convolution protruded from an upper portion of the upper border wire and/or a lower portion of the lower border wire. The spring assembly includes an enclosure partially or fully provided on an upper end portion and/or an lower end portion of the coil spring for covering the terminal convolution in the row direction or column direction, thereby interrupting interference between the terminal convolution and the upper and/or lower border wire and and absorbing a lateral load applied to the terminal convolution. A padding member is not damaged by the terminal convolution, and a contact resistance between the upper border wire and the terminal convolution is absorbed to block a frictional noise.
Description
The application is that application number is 200480001463.4, the applying date the dividing an application for the application for a patent for invention of " being used for packing the device of the spring assembly free terminal coiling circle that is used for mattress " that be on 06 30th, 2004, denomination of invention.
Technical field
The present invention relates to a kind of built-in spring assembly that is used for mattress, is used for cushioning external load, especially relate to a kind of one of packing that is used for and be used for the device of the spring assembly free terminal coiling circle of mattress, pack the end coiling circle that protrudes in spring assembly upper surface and/or lower surface by this device to interrupt conflicting between this coiling and the cushion member.
Background technology
In general, having the spring assembly (hereinafter referred to as spring assembly) of free terminal coiling circle and cushion member that each places spring assembly upper surface and lower surface constitutes together and can and have the elastomer of shock-absorbing function as mat.This spring assembly is made of with row and the capable disc spring that is arranged in juxtaposition that is arranged in parallel usually a plurality of.
When disc spring when the upper and lower direction of the upper and lower border wires that forms spring assembly upper surface and lower surface is arranged equably, the end coiling circle of disc spring protrudes in the top of coboundary steel wire and/or the bottom of lower boundary steel wire with certain altitude.
As shown in Figure 1, be designated that 100 spring assembly comprises the spring array 110 arranged with parallel columns C peace every trade R, the upper and lower that places spring array 110 with the upper and lower border wires 120 and 120 of supporting most external disc spring 115 ', the parallel R that is engaged in spring array 110 goes up the helical coil 130 with fixing adjacent disc spring 115 terminal coiling circles.
By means of sheet metal folder 140 be fixed on upper and lower border wires 120 and 120 ' between the space in disc spring 115 arrange with vertical direction.In elastomeric upper end and/or lower end, disc spring 115 have protrude in outwardly upper and lower border wires 120 and 120 ' free terminal coiling circle 115a.
A cross section based on spring array 110, the end coiling circle 115a of disc spring 115 protrude in outwardly upper and lower border wires 120 and 120 ', in this case, the cushion member that constitutes when for example nonwoven or silk floss 150 is stacked to place the upper surface of spring array 110 and lower surface and when being surrounded by an outer cover, as shown in Figure 2, cushion member 150 contacts each other with terminal coiling circle 115a, thereby causes the damage of cushion member.
In addition, if when being applied to the external force of mattress and making terminal coiling circle 115a towards the skew of direction, spring assembly 100 faces a problem, promptly because load gathers the elastic force variation that any makes disc spring 115.End coiling circle 115a and the coboundary steel wire 120 of skew or lower boundary steel wire 120 ' outer surface contact thereby generation friction noise.
Summary of the invention
Therefore, one object of the present invention solves problems of the prior art exactly, and a kind of dress cover that is used for packing the spring assembly free terminal coiling circle that is used for mattress is provided, protrude in the end coiling circle of spring assembly upper surface and/or lower surface to interrupt the conflict between this coiling and the cushion member by this device package.
To achieve these goals, the invention provides a kind of spring assembly that is applicable to mattress, the most external disc spring of its medi-spring array is stable in by pin, in the space between the lower boundary steel wire, helical coil is arranged in the upper and lower of spring array to engage adjacent disc spring 115 with line direction, so like this each disc spring has the free terminal coiling circle of the bottom of top that protrudes in the coboundary steel wire and/or lower boundary steel wire, spring assembly comprises one partly or fully, place disc spring upper end and/or lower end to cover the outer cover of terminal coiling circle with line direction or column direction, thereby can interrupt terminal coiling circle and last, conflict between the lower boundary steel wire and buffering are applied to the lateral load of terminal coiling circle.
Description of drawings
By its preferred embodiment being described and will making above-mentioned purpose of the present invention, other characteristics and advantage become clearer, wherein with reference to accompanying drawing of the present invention:
Fig. 1 is the perspective view of conventional AED.
Fig. 2 is the schematic diagram of an application of conventional AED.
Fig. 3 to Fig. 8 is respectively a cutaway view according to a preferred embodiment of the present invention, adopts nonwoven to cover spring assembly.
Fig. 9 and 10 is respectively a cutaway view according to a preferred embodiment of the present invention, adopts nonwoven to cover spring assembly.
Figure 11 to 14 is respectively a cutaway view in accordance with a preferred embodiment of the present invention, and the polyurethane foam moulded parts is placed on the spring assembly.
The specific embodiment
To at length introduce the preferred embodiments of the present invention now, for example will describe with accompanying drawing.
Fig. 3 to Fig. 8 is respectively a cutaway view according to a preferred embodiment of the present invention, adopts nonwoven to cover spring assembly.Fig. 9 and Figure 10 are respectively the cutaway views according to a preferred embodiment of the present invention, adopt nonwoven to cover spring assembly.Figure 11 to 14 is respectively the cutaway view according to a preferred embodiment of the present invention, and the polyurethane foam moulded parts is placed on the spring assembly.The most external disc spring 115 of spring array 110 by means of fixing and 140 be stable in upper and lower border wires 120 and and 120 ' between the space in, helical coil 130 places spring array 110 with line direction R upper and lower to be to engage adjacent disc spring 115, so like this each disc spring have a top that protrudes in coboundary steel wire 120 and/or lower boundary steel wire 120 ' the free terminal coiling circle 115a of bottom.Outer cover 10 places the upper end of disc spring and/or lower end to cover terminal coiling circle 115a with line direction R or column direction C partly or fully, therefore can interrupt terminal coiling circle 115a and up-and-down boundary steel wire 120 and 120 ' between conflict, and absorb the lateral load that is applied to terminal coiling circle.
In the building block of spring assembly 100 of the present invention, spring array 110, upper and lower part border wires 120 and 120 ' and helical coil 130 all have these parts identical functions in the ball spring assembly, will omit description here to these functions.What next will describe is difference between the present invention and the traditional spring assembly, and promptly terminal coiling circle is covered by outer cover 10.
Although described in an embodiment about polyurethane foam and flexible nonwoven as outer cover 10, any can cover fully terminal coiling circle 115a, and so the material that interrupts conflicting between cushion member and the border wires can be used as outer cover.
Meanwhile, as Fig. 3 to shown in Figure 10, cover in the process of terminal coiling circle 115a as outer cover 10 with nonwoven, in order to cover terminal coiling circle 115a on line direction R, nonwoven should be partly or fully is arranged on the upper end of disc spring and/or lower end, and should be connected to the opposite side of nonwoven with line direction R or column direction C.
Certainly, when nonwoven cover terminal coiling circle around the time, one or more nonwoven can be connected to each other to cover terminal coiling circle 115a, obviously, the method that covers terminal coiling circle with nonwoven also is a scope of protection of the invention.
For example, as shown in Figure 3, the top that the nonwoven on top can cover spring array 110 is surrounding the top of terminal coiling circle 115a fully, and the coiling circle of terminal coiling circle 115a can be stitched or be connected to an end portion of top nonwoven.Selecting as another one, is exactly as shown in Figures 9 and 10, and the nonwoven on top can cover the top of spring array 110 fully, and an end portion of top nonwoven can stitch or be connected to coboundary steel wire 120 or lower boundary steel wire 120 '.
In addition, shown in Figure 4 and 5, the nonwoven of a bottom can be arranged under the bottom of a terminal coiling circle 115a by line direction R, the nonwoven on a top can be arranged on the top of a terminal coiling circle 115a by line direction R, so like this, the nonwoven on top can stitch or be connected to the nonwoven of bottom.As another selection, the nonwoven of a bottom can be arranged under the bottom of terminal coiling circle 115a by column direction C, the nonwoven on a top can be arranged on the top of terminal coiling circle 115a by column direction C, so like this, the top nonwoven can stitch or be connected to the nonwoven of bottom.
As shown in Figure 4, the nonwoven of the nonwoven on top and bottom can be blocked to surround terminal coiling circle 115a on line direction R or column direction C by the single-piece mode.Select as another one, as shown in Figure 5, the nonwoven on top and the nonwoven of bottom also can not block and surround terminal coiling circle 115a on line direction R or column direction C.
In addition, shown in Fig. 6 and 7, the nonwoven of a bottom can be arranged under the bottom of helical coil 130 by line direction R, a top nonwoven can be arranged on the top of terminal coiling circle 115a at line direction R, so like this, the nonwoven on top can stitch or be connected to the nonwoven of bottom.As another selection, the nonwoven of a bottom can be arranged under the bottom of helical coil 130 by column direction C, the nonwoven on a top can be arranged on the top of terminal coiling circle 115a by column direction C, and so like this, the nonwoven on top can stitch or be connected to the nonwoven of bottom.
At this moment, the nonwoven of bottom be arranged on helical coil 130 or spring array position adjacent on, as shown in Figure 6, the nonwoven on top is blocked in the single-piece mode, perhaps as shown in Figure 7, the nonwoven on top is not cut off but uses continuously.
As shown in Figure 8, along line direction R, a top nonwoven can cover the top of terminal coiling circle 115a towards another nonwoven, before one of described top nonwoven terminal can around end reel circle around cover the bottom of terminal coiling circle 115a, this top nonwoven can stitch or be connected to an adjacently situated surfaces of this top nonwoven.Select as another one, along column direction C, the nonwoven on a top can cover the top of terminal coiling circle 115a towards another nonwoven, before one of this top nonwoven terminal can around end reel circle around cover the bottom of terminal coiling circle 115a, the nonwoven on top can stitch or be connected to an adjacently situated surfaces of this top nonwoven.
Shown in Figure 11 to 14, surrounding in the process of terminal coiling circle 115a as outer cover 10 with polyurethane foam, 100 1 desired parts of spring assembly, for example the end coiling circle 115a of disc spring 115 is inserted in the mould (not shown), and in a scheduled time, be set in terminal coiling circle 115a is spumed on column direction C or line direction R partly or fully.
In addition, in the process of the end coiling circle 115a that surrounds disc spring 115 with the polyurethane foam shown in the nonwoven shown in Fig. 3 to 10 or Figure 11 to 14, the end coiling circle 115a on spring array 110 tops by part or encirclement fully, follows the local or encirclement fully of end coiling circle 115a quilt on line direction R or column direction C of spring array 110 bottoms on line direction R or column direction C.
Next introduce operating process of the present invention.
At first, under the situation that the end coiling circle 115a of spring assembly 100 is surrounded by the nonwoven of upper and lower, the nonwoven of upper and lower with a starting point and terminal point be enclosed in terminal coiling circle 115a around, follow adjacent surface seam or be connected to the nonwoven of bottom.
Shown in Fig. 3 to 10, under the situation that the end coiling circle 115a of disc spring 115 is surrounded by polyurethane foam, the end coiling circle 115a of disc spring 115 is inserted in the mould (not shown) and finalizes the design under a given temperature in a preset time.
So, outer cover 10, for example nonwoven or polyurethane foam can be fixed on any one in spring assembly 100 upper and lowers.Especially, on line direction R or column direction C, outer cover 10 is local or be fixed to the end coiling circle 115a of disc spring 115 fully.
Next, each cushion member 150 is placed in the upper surface and the lower surface of spring assembly 100, and is surrounded by the overcoat of upper and lower, then is sewn, and therefore finishes the manufacture process of mattress.
Though the present invention has described and has for example understood its preferred embodiment here, it is apparent to those skilled in the art that here those do not break away from essence of the present invention all is available with scope, different correction and modification.Therefore, the present invention protects correction and the modification in those protection domains that drop on claim and its equivalent.
Industrial applicibility
Seen from the above description, nonwoven or polyurethane foam outer cover are stable in the top of spring assembly, therefore, can protect and the cushion member that directly contacts around the outer cover.
Similarly, if a user's weight is applied to used spring assembly, the contact between the terminal coiling circle of enclosure interrupts and the cushion member, and the inclination of terminal coiling circle is minimized, thereby stop friction noise.
In addition, place cushion member on the spring assembly to carry out surface with outer cover around surrounding terminal coiling circle and contact, terminal coiling circle can not conflict with cushion member, thereby therefore can stop the friction service life of prolongation mattress also between them.
Claims (3)
1. spring assembly that is applicable to mattress, the most external disc spring (115) of its medi-spring array (110) is fixed in the space between coboundary steel wire (120), the lower boundary steel wire (120 ') by clip (140), helical coil (130) places the upper and lower of spring array (110) to engage adjacent disc spring (115) with line direction (R), each disc spring all has the free terminal coiling circle (115a) that protrudes in coboundary steel wire (120) top and/or lower boundary steel wire (120 ') bottom, and spring assembly comprises:
Be positioned at the outer cover (10) on disc spring upper end and/or the lower end, its form with single-piece covers terminal coiling circle (115a), thereby interrupt conflict between terminal coiling circle (115a) and coboundary steel wire (120) and/or the lower boundary steel wire (120 '), and absorb the lateral load that is applied to terminal coiling circle.
2. spring assembly as claimed in claim 1, wherein outer cover (10) is any one in polyurethane foam and the nonwoven.
3. as claim 1 or 2 described spring assemblies, wherein outer cover is a nonwoven, described nonwoven comprises that the form with single-piece places the bottom nonwoven under terminal coiling circle (115a) bottom, place top nonwoven on terminal coiling circle (115a) top with form with single-piece, its middle and upper part nonwoven is connected to the bottom nonwoven.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0063169 | 2003-09-09 | ||
| KR1020030063169 | 2003-09-09 | ||
| KR20030063169 | 2003-09-09 | ||
| KR1020040030738A KR100444347B1 (en) | 2003-09-09 | 2004-04-30 | Device for packing the exposure parts of spring assembly for bed matress |
| KR10-2004-0030738 | 2004-04-30 | ||
| KR1020040030738 | 2004-04-30 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800014634A Division CN100396214C (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101229002A CN101229002A (en) | 2008-07-30 |
| CN101229002B true CN101229002B (en) | 2010-10-27 |
Family
ID=35822480
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100814199A Pending CN101229003A (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
| CNB2004800014634A Expired - Lifetime CN100396214C (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
| CN2008100814184A Expired - Lifetime CN101229002B (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
| CN200810081420A Expired - Lifetime CN100588346C (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100814199A Pending CN101229003A (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
| CNB2004800014634A Expired - Lifetime CN100396214C (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810081420A Expired - Lifetime CN100588346C (en) | 2003-09-09 | 2004-06-30 | Apparatus for packing free terminal convolutions of spring assembly used in mattress |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100444347B1 (en) |
| CN (4) | CN101229003A (en) |
| ES (1) | ES1072643Y (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7793407B2 (en) | 2005-06-29 | 2010-09-14 | Ace Bed Co., Ltd. | Apparatus for enclosing exposure wire parts of spring assembly for bed mattress |
| KR100938781B1 (en) * | 2009-03-16 | 2010-01-27 | 주식회사 에이스침대 | Bed mattress seating the cushion matter |
| GB2506104B (en) * | 2012-08-10 | 2018-12-12 | Hs Products Ltd | Resilient unit with different major surfaces |
| KR101355896B1 (en) * | 2013-03-28 | 2014-01-28 | 안유수 | Coil spring of bed matress with means for preventing the friction noise |
| KR101410357B1 (en) | 2013-09-25 | 2014-07-02 | 안유수 | High tension coil spring of bed matress with means for preventing the friction noise |
| KR101410355B1 (en) | 2013-09-25 | 2014-06-24 | 안유수 | High tension coil spring of bed matress with means for preventing the friction noise |
| KR101485546B1 (en) * | 2014-01-24 | 2015-01-22 | 안유수 | Bed mattress with sealing free terminal convolution and its mounting method |
| KR102146235B1 (en) | 2019-05-07 | 2020-08-20 | 주식회사 에이스침대 | Bed mattress provides a variety of cushioning and buffering feel |
| KR102146237B1 (en) | 2019-05-07 | 2020-08-20 | 주식회사 에이스침대 | Bed matress to buffer exposure parts sealing device of spring assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139919A (en) * | 1977-12-07 | 1979-02-20 | Serta, Inc. | Internal support structure for a mattress |
| CN1040499A (en) * | 1988-08-05 | 1990-03-21 | 睡乡用具有限公司 | Spring units for mattresses |
| US6128798A (en) * | 1998-09-04 | 2000-10-10 | Sealy Technology Llc | Cavitated pad and innerspring assembly combination having springs with free terminal convolutions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100810U (en) * | 1991-10-26 | 1992-04-08 | 庄俊夫 | Washing-free bowl |
| CN2304310Y (en) * | 1997-07-10 | 1999-01-20 | 朱少恒 | Inner structure of mattress |
| US6658682B1 (en) * | 2000-04-25 | 2003-12-09 | L&P Property Management Company | Bedding or seating product with spring core topper |
| US6353952B1 (en) * | 2000-05-31 | 2002-03-12 | L&P Property Management Company | Posturized bedding or seating product with springs of differing heights |
-
2004
- 2004-04-30 KR KR1020040030738A patent/KR100444347B1/en active IP Right Grant
- 2004-06-30 ES ES200950003U patent/ES1072643Y/en not_active Expired - Fee Related
- 2004-06-30 CN CNA2008100814199A patent/CN101229003A/en active Pending
- 2004-06-30 CN CNB2004800014634A patent/CN100396214C/en not_active Expired - Lifetime
- 2004-06-30 CN CN2008100814184A patent/CN101229002B/en not_active Expired - Lifetime
- 2004-06-30 CN CN200810081420A patent/CN100588346C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139919A (en) * | 1977-12-07 | 1979-02-20 | Serta, Inc. | Internal support structure for a mattress |
| CN1040499A (en) * | 1988-08-05 | 1990-03-21 | 睡乡用具有限公司 | Spring units for mattresses |
| US6128798A (en) * | 1998-09-04 | 2000-10-10 | Sealy Technology Llc | Cavitated pad and innerspring assembly combination having springs with free terminal convolutions |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-229919A 1998.09.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100444347B1 (en) | 2004-08-18 |
| CN101229003A (en) | 2008-07-30 |
| ES1072643U (en) | 2010-08-12 |
| CN1717188A (en) | 2006-01-04 |
| CN101229004A (en) | 2008-07-30 |
| CN101229002A (en) | 2008-07-30 |
| ES1072643Y (en) | 2010-11-25 |
| CN100396214C (en) | 2008-06-25 |
| CN100588346C (en) | 2010-02-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |