JP2011024898A5 - - Google Patents

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Publication number
JP2011024898A5
JP2011024898A5 JP2009175687A JP2009175687A JP2011024898A5 JP 2011024898 A5 JP2011024898 A5 JP 2011024898A5 JP 2009175687 A JP2009175687 A JP 2009175687A JP 2009175687 A JP2009175687 A JP 2009175687A JP 2011024898 A5 JP2011024898 A5 JP 2011024898A5
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Japan
Prior art keywords
urethane
fiber
hardness
bedding
bed
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Pending
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JP2009175687A
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Japanese (ja)
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JP2011024898A (en
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Priority to JP2009175687A priority Critical patent/JP2011024898A/en
Priority claimed from JP2009175687A external-priority patent/JP2011024898A/en
Publication of JP2011024898A publication Critical patent/JP2011024898A/en
Publication of JP2011024898A5 publication Critical patent/JP2011024898A5/ja
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Description

就寝時に畳や床の上に敷いて用いる、敷ふとんは、使用しないときには折り畳んで、収納しておくので、主として繊維わた材料が用いられている。
繊維わたは繰り返し使用している間に、繊維の嵩が減少し、所謂煎餅ふとんになり易い。昨今、繊維わたの嵩性を保持するために繊維わたの中芯として、繊維ウエッブにニードルパンチを施した不織布や、融点の異なる繊維を混ぜて繊維ウエッブを形成した後に低融点繊維を溶かして得る硬綿などが使われている。また、合成樹脂発泡体シートなどを中芯とする技術も開発されている。
本発明は、かかる繊維わたを主とする敷ふとんにおいて、見かけ密度の小さいウレタンフォームとプロファイル加工を組合せることで、軽量で、折り畳み性良好で、且つ寝心地良好な敷寝具を得ることを目的とする。
A bed that is laid on a tatami mat or floor when going to bed is folded and stored when not in use, so a material that is mainly made of fiber is used.
During repeated use of the fiber cotton, the bulk of the fibers is reduced and it tends to become so-called rice cracker futon. Recently, a low melting fiber is obtained by mixing a non-woven fabric in which a needle punch is applied to a fiber web and fibers having different melting points to form a fiber web as a core of the fiber cloth to maintain the bulkiness of the fiber cotton. Hard cotton is used. In addition, technology using a synthetic resin foam sheet or the like as a core has also been developed.
It is an object of the present invention to obtain a lightweight, foldable, and comfortable bed by combining urethane foam with a low apparent density and profile processing in a bed mainly composed of such fiber cotton. Do.

表2は、プロファイルウレタンフォーム3,4を上下2層に重ねてなる中芯2の、上下の両面に繊維わた5を配しそれらを側地6で覆った敷寝具を、JIS K 6400 に準じた20cmΦの圧縮子で、寝具に掛かる体圧30mmHgの時(20cmΦ円板での荷重13kg/cm2)の寝具の変形率と厚さの30%まで圧縮した時の応力(hPa)を求めた。
中芯のプロファイルウレタンフォームとして、表1に示す3種類の密度と硬度(H:かため、M:ふつう、S:やわらかめ)を有する2枚のウレタンフォームを選んで敷ふとんを作成した。
中芯のプロファイルウレタンフォームの組合せとして、上側に5cm厚、下側に2cm厚のプロファイルウレタンを配置させ、該ウレタンフォームの上下に各々100g/m2の繊維わたを配し側地で覆いふとんとした組合せの違いによる圧縮特性を表1に示す。
なお、HHとは、上部ウレタン硬さHと下部ウレタン硬さHの組合せを示し、MHとは、上部ウレタン硬さMと下部ウレタン硬さHの組合せを示している。
かかる敷ふとんに、体型の違う二名の被験者についての体圧分布と寝具の沈み込み具合を示す。
Table 2 arranges the fiber wabs 5 on the upper and lower surfaces of the core 2 formed by layering the profile urethane foams 3 and 4 in the upper and lower two layers, and covers them with the side 6 according to JIS K 6400 Determine the deformation rate of the bedding and the stress (hPa) when compressed to 30% of the thickness at a body pressure of 30 mmHg applied to the bedding (a load of 13 kg / cm 2 on a 20 cm disc) with a 20 cm 圧 縮 compactor according to the standard The
As a core profile urethane foam, two sheets of urethane foam having three types of density and hardness (H: iron, M: normal, S: soft) shown in Table 1 were selected to prepare a floor.
As a combination of core profile urethane foam, a profile urethane of 5 cm thickness on the upper side and a 2 cm thickness on the lower side is disposed, 100 g / m 2 fiber wadding is placed on the upper and lower sides of the urethane foam, The compression characteristics due to the difference of the combinations are shown in Table 1.
HH indicates a combination of upper urethane hardness H and lower urethane hardness H, and MH indicates a combination of upper urethane hardness M and lower urethane hardness H.
This bed indicates the pressure distribution and the sinking of bedding for two subjects with different body types.

実施例1、実施例2及び実施例3は、軽量で底付きもなく、繊維わたふとんと同等の寝心地感を有する敷きふとんである。
実施例1から実施例2、実施例3になるにしたがって、上部プロファイルウレタンの密度は低くなり、体圧分布の腰部最大圧は小さくなり沈み量も大きくなっているが、下部プロファイルウレタン層は密度が高く、硬度もかため(H)であり、体をしっかりと支えている。
比較例1と比較例2では下部ウレタンフォームの密度は実施例1、実施例2、実施例3よりも低い。特に、比較例2では被験者Aは、敷きふとんが床に付き「底付き感」を感じる被験者Bも寝心地感は、比較例1よりもよくない。
比較例3は、繊維わたによる通常敷きふとんの例であり、ふとんの厚さは9.5cm、重さは5.5kgであり、被験者A、被験者Bのデータより、体圧分布、沈み量は本発明と同程度の寝心地であるが敷きふとん重量は実施例よりも重い。
The first embodiment, the second embodiment and the third embodiment are beddings that are lightweight, have no bottom, and have a feeling of sleeping comfort equivalent to fiber cotton.
From Example 1 to Example 2 to Example 3, the density of the upper profile urethane decreases and the maximum waist pressure in the body pressure distribution decreases and the amount of sinking also increases, but the lower profile urethane layer has a density High hardness and hardness (H), and supports the body firmly.
In Comparative Example 1 and Comparative Example 2, the density of the lower urethane foam is lower than that of Example 1, Example 2, and Example 3. In particular, in the comparative example 2, the subject A feels a "bottomed feeling" because the bedding is on the floor . Subject B also feels less comfortable than in Comparative Example 1.
Comparative Example 3 is an example of a general bedding with fiber cotton, the thickness of the bed is 9.5 cm, the weight is 5.5 kg, and from the data of the subjects A and B, the body pressure distribution and the amount of sinking are Although the sleeping comfort is comparable to that of the present invention, the weight of the bedding is heavier than that of the embodiment.

JP2009175687A 2009-07-28 2009-07-28 Mattress Pending JP2011024898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009175687A JP2011024898A (en) 2009-07-28 2009-07-28 Mattress

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009175687A JP2011024898A (en) 2009-07-28 2009-07-28 Mattress

Publications (2)

Publication Number Publication Date
JP2011024898A JP2011024898A (en) 2011-02-10
JP2011024898A5 true JP2011024898A5 (en) 2012-09-06

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110991035B (en) * 2019-11-29 2023-05-05 大自然科技股份有限公司 Design method of palm mattress lightweight structure
CN110990970B (en) * 2019-11-29 2023-04-18 大自然科技股份有限公司 Design and detection method for lightweight structure of palm mattress
CN110826256B (en) * 2019-11-29 2023-04-18 大自然科技股份有限公司 Design method of lightweight three-layer structure of palm mattress
CN110991113B (en) * 2019-11-29 2023-03-31 大自然科技股份有限公司 Design method of lightweight double-layer structure of palm mattress

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6112843Y2 (en) * 1978-07-24 1986-04-21
JPS5536811U (en) * 1978-08-30 1980-03-10
JPS55171262U (en) * 1979-05-28 1980-12-09
JP3168513B2 (en) * 1997-01-31 2001-05-21 アキレス株式会社 Bedding mat
JP2007195701A (en) * 2006-01-26 2007-08-09 Achilles Corp Mattress
JP2009100986A (en) * 2007-10-24 2009-05-14 Toyo Tire & Rubber Co Ltd Cushioning material for mattress and mattress

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