JPS5854245A - Spring - Google Patents

Abstract

PURPOSE:To obtain a spring, in those used for a mattress and the like, where flection is caused for a load to a certain level at the beginning and then large elasticity can be presented for the load with a very small amount of flection, by using an oval sectional steel wire. CONSTITUTION:A spring 2 is arranged in such a manner that the longitudinal direction of an oval sectional hard steel wire is positioned in an axial line direction of the spring 2 in the first and second receiver parts 4, 5, and the longitudinal direction is positioned in the direction, crossing at a right angle with a winding direction, that is, almost in the axial line direction in the first and second spiral parts 6, 8, while the longitudinal direction is positioned in the direction, crossing at a right angle with the sloped direction of a torsion part 7 in the torsion part 7. Accordingly, large resisting force can be obtained in the spiral parts 6, 8 and the torsion part 7.

Description

【発明の詳細な説明】 この発明はマツトレスや椅子などのスゲリング構体を構
成するスプリングの改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in springs constituting sedge ring structures such as pinerests and chairs.

たとえば、ベッド用のマツトレスは、多数のスプリング
を平板状に連結してスプリング構体を形成し、このスプ
リング構体の平面上にウレタンフオームなどからなる弾
性材を重合し、この重合体を外装地で被覆して構成され
ている・このような構成のマツトレスにおいては、利用
者が横臥したときにこの利用者にスゲリング構体のこわ
さを伝えずに支えるやわらかさと、利用者の重い部分、
たとえばてん部などをスゲリング構体内に深く沈、ませ
ずに支える硬さとが重要な性能として要求される。For example, pinerests for beds are made by connecting many springs in a flat plate shape to form a spring structure, polymerizing an elastic material such as urethane foam on the flat surface of this spring structure, and covering this polymer with an exterior material. The pinerest with this structure has a softness that supports the user without conveying the stiffness of the sgelling structure to the user when he lies down, and a pine support that supports the user's heavy parts.
For example, an important performance requirement is hardness that supports the stem without sinking deeply into the Sgeling structure.

従来、上記スプリング構体には、スプリングとして通常
、線材を螺旋状に巻いた、いわゆるコイルスプリングが
用いられている。しかしながう、従来のコイルスシリン
グによって構成されたスゲリング構体は、上記コイルス
プリングのたわみ量が荷重に対してはは比例関係にある
ため、スゲリング構体にやわらかさを持たせるためにや
わらかなコイルスゲリングを用いると、大きな荷重が加
わる部分のたわみ量が太きくなることか避けられない、
すなわち、利用者のでん部などの重い部分が他の部分に
比べてスグリ　　　− ング構体内に深く沈んでしまう。すると、利用者は背筋
が曲がった姿勢で支えられることになるため、寝心地が
悪くなるばかりか、健康上も良くないという問題があっ
た。Conventionally, a so-called coil spring, in which a wire rod is spirally wound, is usually used as a spring in the above-mentioned spring structure. However, since the amount of deflection of the coil spring is proportional to the load, the conventional coil spring structure is constructed using a long coil spring. When using a ring, it is inevitable that the amount of deflection will increase in the area where a large load is applied.
In other words, heavy parts such as the user's buttocks sink deeper into the sink structure than other parts. As a result, the user is supported with his or her back bent, which not only makes it uncomfortable to sleep, but is also bad for one's health.

そこで、利用者の重い部分を深く沈ませないために、線
径の太いスプリングを用いたり、重い部分を支える箇所
に断面形状が角形の硬鋼線からなるスプリングを用いた
シすることが考えられている。しかしながら、前者の場
合にはスプリング構体の重量増大やコストアップの原因
となり、後者の場合には断面形状が角形の硬鋼線を安価
に入手することができずにコストアラｆを招いたシ、角
形の工、ジ部によってスプリング構体に重合される弾性
材など乏早期に損傷させてしまうなどの問題がある。し
かも、スゲリングを太い線径や角形断面の硬鋼線を用い
て単に硬くしたのでは、荷重に対してのたわみ量が極端
に小さくなるから、利用者にスプリング構体のこわさが
伝わってしまうという欠点が生じる。Therefore, in order to prevent the user's heavy parts from sinking too deeply, it is possible to use springs with a thick wire diameter, or to use springs made of hard steel wire with a rectangular cross-section to support the heavy parts. ing. However, in the former case, it causes an increase in the weight and cost of the spring structure, and in the latter case, it is difficult to obtain hard steel wire with a square cross section at a low price, leading to cost reductions. There are problems such as premature damage to the elastic material that is superimposed on the spring structure due to the mechanical construction and the jig portion. Moreover, if the Suge Ring is simply made stiffer by using a hard steel wire with a thick wire diameter or a square cross section, the amount of deflection under load will be extremely small, which has the disadvantage that the stiffness of the spring structure will be conveyed to the user. occurs.

この発明は上記事情にもとづきなされたもので、その目
的とするところは、初めは荷重に対しである程度たわみ
、以後は荷重に対してたわみ量が極て小さく大きな弾力
を呈するようにしたスゲリングを提供することにある。This invention was made based on the above circumstances, and its purpose is to provide a suge ring that initially deflects to a certain extent under load, and thereafter exhibits large elasticity with extremely small amount of deflection under load. It's about doing.

以下、この発明をマツトレスのスプリング構体に適用し
た第１図乃至第６図を参照して説明する。図中１はスゲ
リング構体である。このスプリング構体１は多数のスプ
リング２・・・を平板状に連結し、この上下面周辺部に
枠線３，３を連結して構成されている。上記スゲリング
２は断面形状が長円形の硬鋼線を第４図乃至第６図に示
すように曲成してなる。すなわち、上下両端に矩形枠状
に形成され互いに平行に対向した第１の受は部４と第２
の受は部５を有し、第１の受は部４に−は上記硬鋼線を
約４５０度巻いた第１の螺旋部６が連続している。この
第１の螺旋部６には、螺旋部６の軸線に対して約４５度
の角度で傾斜した直線状のトーション部７が連続してい
る。このトーション部１には硬鋼線を上記第１の螺旋部
６と逆方向に約２７０度巻いた第２の螺旋部８が連続し
て、この第２の螺旋部８は上記第２の受は部５に連続し
ている。硬鋼線の第１．第２の受は部４．６に位置する
両末端部は、はぼＵ字状のフック９，１０に折曲され、
これらフック９．１０は第１．第２の受は部４，５に連
続する第１．第２の螺旋部６，８０基端部に係合してい
る。また、第１．第２の受は部４゜５は、矩形枠を形成
する各辺がこの両端部および隣シ合う各端部においてそ
れぞれ上下逆方向に屈曲された折曲部１１・・・に形成
されている。また、スプリング２は、第１．第２の受は
部４，５においては長円形断面の硬鋼線の長手方向をス
プリング２の軸線方向に位置させ、第１．第２の螺旋部
６，８においては上記長手方向を巻き方向に対して直交
する方向、すなわちほぼ上記軸線方向に位置させている
とともに、トーション部１においてＬ上記長手方向をト
ーション部１の傾斜方向と直交する方向に位置させてい
る。Hereinafter, the present invention will be explained with reference to FIGS. 1 to 6, in which the invention is applied to a spring structure of a pinerest. 1 in the figure is a sgelling structure. This spring structure 1 is constructed by connecting a large number of springs 2 . . . in a flat plate shape, and connecting frame lines 3, 3 to the periphery of the upper and lower surfaces thereof. The sedge ring 2 is made by bending a hard steel wire having an oval cross-section as shown in FIGS. 4 to 6. That is, the first receiver, which is formed in the shape of a rectangular frame at both the upper and lower ends and faces parallel to each other, has a portion 4 and a second receiver.
The receiver has a portion 5, and the first receiver has a portion 4 and a first helical portion 6, which is formed by winding the hard steel wire at an angle of approximately 450 degrees. A linear torsion section 7 that is inclined at an angle of about 45 degrees with respect to the axis of the spiral section 6 is continuous to the first spiral section 6 . This torsion part 1 is continuous with a second spiral part 8 formed by winding a hard steel wire approximately 270 degrees in the opposite direction to the first spiral part 6, and this second spiral part 8 is connected to the second receiver. is continuous with part 5. The first hard steel wire. Both end portions of the second receiver located in the portion 4.6 are bent into U-shaped hooks 9, 10;
These hooks 9.10 are the first. The second bridge is connected to the first section 4 and 5. It engages with the base end portions of the second spiral portions 6 and 80. Also, 1st. The second receiving portion 4.5 is formed into a bent portion 11 in which each side forming the rectangular frame is bent in an upside-down direction at both ends and each adjacent end. . Further, the spring 2 is connected to the first spring. In the second bearing parts 4 and 5, the longitudinal direction of the hard steel wire having an oval cross section is located in the axial direction of the spring 2, and the first bearing part has the hard steel wire having an oval cross section located in the axial direction of the spring 2. In the second helical parts 6 and 8, the longitudinal direction is located in a direction perpendicular to the winding direction, that is, approximately in the axial direction, and in the torsion part 1, the longitudinal direction L is located in the inclination direction of the torsion part 1. It is located in a direction perpendicular to.

このように形成されたスゲリング２は、第１図に示よう
にそれぞれ第１．第２の受は部４゜５を組んでこれら受
は部４，５の折曲部分１１・・・を介して連続するよう
列状に連結し、多数の列を並設して各列の互いに隣シ合
う各受部の隅角部をクリラグ１２・・・で連結すること
により平板状に結合されている。そして、平板状に連結
されることによシ周辺部に位置したスプリング２には、
この上下受は部４．Ｊの最外縁に位置する隅角部に帯状
鋼板からなる上記枠線３力五通されている。さらに、上
下一対の枠線３，３間には、帯状鋼板を環状に曲成しそ
の両側に＃ヨ＃丁Ｗ字状のばね部１４．１４を有するエ
ツジスゲリング１５が周辺方向に所定間隔でその上下辺
をクリ、グ１６・・・で連結して設けられている働なお
、スプリング２は断面円形状の硬鋼線を曲成する前に圧
し潰して断面を長円形状にしてから、第１．第２の受は
部４，５、第１．第２の螺旋部６，８およびトーション
部７−６形成される。また、スプリング２を列状に連結
するに際し、その第１．第２の受は部４，５をフック９
．１０の部分で開いておいて隣シのスズリング２の第１
．第２の受は部４，５に連結することができ、また第１
．第２の受は部４，５の隅角部はとの隅角部を形成する
２つの辺の末端が上下逆方向に折曲された折曲部１１で
あるため、隣Ｆ）合う各第１．第２の受は部４，５はそ
れぞれ水平状態が傾く応力を受けることなく連結される
。さらに、第１．第２の受は部４，６の隅角部に通され
る枠線３によっても、上記第１゜第２の受は部４，５が
応力を受けることがない・そして、このように構成され
たスゲリング構体１は、スプリング２の第１の受は部４
側の面と第２の受は部５例の面にそれぞれ図示しない保
−材を介してウレタン７オームなどの弾性材を沖合し、
この重合体を外装地（図示せず）で被覆することにより
マツトレスに形成されている。As shown in FIG. The second receiver is made up of sections 4 and 5, and these receivers are connected in a continuous row through the bent portions 11 of sections 4 and 5, and a large number of rows are arranged in parallel. The corner portions of adjacent receiving portions are connected to each other by a clear lug 12 . . . to form a flat plate. The spring 2, which is connected in a flat plate shape and located at the periphery, has
This upper and lower support is part 4. The above-mentioned frame line made of a strip-shaped steel plate is inserted into the corner located at the outermost edge of J. Further, between the pair of upper and lower frame lines 3, 3, edge gellings 15, which are formed by bending a band-shaped steel plate into an annular shape and have spring portions 14 and 14 in the shape of a #Y #C W shape on both sides, are installed at predetermined intervals in the peripheral direction. The upper and lower sides of the spring 2 are connected by a hole, a groove 16, and so on.The spring 2 is made by crushing a hard steel wire with a circular cross section to make the cross section into an oval shape before bending it. , 1st. The second receiver has sections 4 and 5, and the first. Second spiral portions 6, 8 and torsion portions 7-6 are formed. Further, when connecting the springs 2 in a row, the first . The second receiver connects parts 4 and 5 to hook 9
．． Leave it open at the 10th part and insert the 1st part of the adjacent tin ring 2.
．． The second receiver can be connected to the parts 4, 5 and also the first
．． The corners of the second receiver are bent parts 11 in which the ends of the two sides forming the corners of the parts 4 and 5 are bent in an upside-down direction. 1. The second receiver parts 4 and 5 are connected to each other without being subjected to stress that would tilt the horizontal state. Furthermore, the first. Even with the frame line 3 passing through the corner portions of the parts 4 and 6, the parts 4 and 5 of the second support are not subjected to any stress. The first support of the spring 2 is the part 4.
An elastic material such as urethane 7 ohm is applied to the side surface and the second support through a retainer (not shown) on the surface of the 5th part, respectively.
This polymer is formed into a pine tress by covering it with a sheath (not shown).

しかして、上記構成のマツトレスにおいては、スプリン
グ２の第１の受は部４が連結された面を上側にして利用
するのだが、第１の受は部４側の面に利用者が横臥する
と、まず、スプリング２の第１の螺旋部６が弾性変形す
る。このとき、第２の螺旋部８も弾性変形するが、この
第２の螺旋部８は第１の螺旋部６に比べて巻き量が少な
いから、弾性変形量もわずかである。ついで、スプリン
グ２に加わる荷重は、第１の螺旋部６を所定量変形させ
たのちトーション部７に加わるのだが、このトーション
部７は第１の螺旋部６に比べて硬いため、上記荷重に対
してわずかにねじれる程度である。しかも、上記トーシ
ョン部７に連続する第１の螺旋部６と第２の螺旋部８と
の巻き方向が逆であるので、トーション部７に加わるト
ーション応力が逆方向となシ、このことによってもトー
ション部７の硬さが州す・さらに、スゲリング２は断面
形状が長円形状の硬鋼線によって形成され、その長円形
状の長手方向を第１．第２の受は部４，６および第１．
第２の螺旋部６，８においてスプリング２のほぼ軸線方
向に位置させ、トーション部７においてその傾斜方向に
対してほぼ直交する方向に位置させている。したがって
、スプリング２に加わる荷重に対して第１．第２の受は
部４．５および第１．第２の螺旋部６，８においてその
断面の長手方向に加わる曲げ応力に対して大きな抗力を
呈し、またトーション部１はトーション応力に対して大
きな抗力を呈するので、このことによってもスズリング
２は荷重に対して変形量が小さな硬いものとなる。す々
わち、断面が長円形状の硬鋼線のもとの形状である円形
状のままでスズリング２１を形成した場合に比べて弾力
を大きくすること〃：できる。また、このスプリング２
は、通常安価に市販されている断面が円形状の硬鋼線を
変形させて使用するものであるから、断面が角形状の硬
鋼線を用いる場合に比べて安価に製作することができる
。In the pinerest with the above configuration, the first receiver of the spring 2 is used with the surface to which the part 4 is connected facing upward; however, when the user lies on the surface of the part 4, the first receiver is used. , First, the first spiral portion 6 of the spring 2 is elastically deformed. At this time, the second spiral portion 8 is also elastically deformed, but since the second spiral portion 8 has a smaller amount of winding than the first spiral portion 6, the amount of elastic deformation is also small. Next, the load applied to the spring 2 is applied to the torsion part 7 after deforming the first helical part 6 by a predetermined amount, but since the torsion part 7 is harder than the first helical part 6, the load is applied to the torsion part 7. It is only slightly twisted. Moreover, since the winding directions of the first spiral part 6 and the second spiral part 8 which are continuous to the torsion part 7 are opposite, the torsion stress applied to the torsion part 7 is in the opposite direction. The hardness of the torsion portion 7 is improved.Furthermore, the suge ring 2 is formed of a hard steel wire having an oval cross-section, and the longitudinal direction of the oval shape is the first. The second receiver has sections 4, 6 and the first.
The second helical portions 6 and 8 are located approximately in the axial direction of the spring 2, and the torsion portion 7 is located approximately perpendicular to the direction of inclination thereof. Therefore, with respect to the load applied to the spring 2, the first. The second receiver is part 4.5 and the first part. The second helical portions 6 and 8 exhibit a large resistance to the bending stress applied in the longitudinal direction of their cross sections, and the torsion portion 1 exhibits a large resistance to the torsion stress. It is a hard material with a small amount of deformation. In other words, it is possible to increase the elasticity compared to the case where the tin ring 21 is formed using a hard steel wire having an oval cross-section and its original shape being circular. Also, this spring 2
Since this method uses a modified hard steel wire with a circular cross section, which is usually commercially available at low cost, it can be manufactured at a lower cost than when using a hard steel wire with a square cross section.

さらに、断面が長円形状の硬鋼線からなるスプリング２
は、その第１．第２の受は部４，５の口１１ヲ・形成す
る部分が円弧状となっているから、これらに接触する保
護材や弾性材を早期に損傷させるということがない。Furthermore, a spring 2 made of hard steel wire with an oval cross section
The first one is. Since the second receiver has an arcuate portion forming the openings 11 of the parts 4 and 5, there is no possibility of premature damage to the protective material or elastic material that comes into contact with these parts.

なお、この発明は上記一実施例に限定されず、たとえば
上下枠線３，３間に設けられるエツジスプリング１５は
そのばね部１４が第７図に示すような半円形状、第８図
に示すような内方へ向った７字状あるいは第９図に示す
ような外方へ向ったＶ字状などのものであってもよい。The present invention is not limited to the above-mentioned embodiment. For example, the edge spring 15 provided between the upper and lower frame lines 3, 3 may have a spring portion 14 of a semicircular shape as shown in FIG. 7, or a semicircular shape as shown in FIG. It may also be in the shape of an inward 7-shape, as shown in FIG. 9, or an outward V-shape, as shown in FIG.

仲は第１の螺旋部の巻き量が第２の螺旋部よシも多けれ
ばよい。It is sufficient that the amount of winding in the first helical part is greater than that in the second helical part.

以上述べたようにこの発明は、両端に受は部を有し、こ
れら一対の受は部の間に、一方の受は部に連続した第１
の螺旋部と、他方の受は部に連続し上記第１の螺旋部と
巻き方向が逆でかつ巻き量が多い第２の螺旋部とをトー
ション部で連続して形成したスプリングにおいて、この
スプリングは断面形状が長円形状をなした一線によって
形成されているとともに、上記一対の受は部および第１
．第２の螺旋部は断面長円形の長手方向をスゲリングの
ほぼ軸線方向に位置させ、トーション部はその傾斜方向
に対してほぼ直交する方向に位置させた。したがって、
このスプリングは一対の受は部および第１．第２の螺旋
部において鋼線がその長円形状の断面の長手方向に加わ
る曲げ応力に対して大きな抗力を呈するとともにトーン
、ン部がねじれ応力に対して大きな抗力を呈するので、
荷重に対してたわみ量の小さい大きな弾力を有する。ま
た、断面長円形状の鋼線は安価に市販されている断面円
形状の鋼線を押し潰して形成することができるから、ス
ゲリングの抗力を大きくするために断面角形の鋼線を用
いる場合に比べてコストをメ滅することができ、さらに
は線径を太くして硬くする場合に比べて軽量化やコスト
の低減が計れる。As described above, in the present invention, the receiver has sections at both ends, and the pair of receivers is located between the sections, and one receiver is connected to the first section that is continuous to the section.
A spring in which a torsion part is formed continuously with a helical part and a second helical part which is continuous with the other part and whose winding direction is opposite to that of the first helical part and which has a large amount of winding. is formed by a straight line having an oval cross-sectional shape, and the pair of receivers are formed by a part and a first part.
．． The longitudinal direction of the second helical part was located in the axial direction of the sedge ring, and the torsion part was located in the direction substantially perpendicular to the inclination direction of the second spiral part. therefore,
This spring has a pair of receiving parts and a first receiving part. In the second helical part, the steel wire exhibits a large resistance against bending stress applied in the longitudinal direction of its oval cross section, and at the same time, the tone part exhibits a large resistance against torsional stress.
It has high elasticity with a small amount of deflection under load. In addition, steel wire with an oval cross-section can be formed by crushing a steel wire with a circular cross-section that is commercially available at low cost. Compared to this, the cost can be reduced, and it is also possible to reduce the weight and cost compared to the case where the wire diameter is made thicker and harder.

第１図はスプリング構体の一部を示す平面図、第２図は
伽晴図、第３図は第２図ｍ−■線に沿−Ｅｍに沿う拡大
断面図、第７図乃至第９図はそれぞれこの発明の他の実
施例を示すエツジスプリングの側面図である。Fig. 1 is a plan view showing a part of the spring structure, Fig. 2 is a clear view, Fig. 3 is an enlarged sectional view taken along the line m-■ in Fig. 2, and Figs. 7 to 9. 2A and 2B are side views of edge springs showing other embodiments of the present invention, respectively.

４・・・第１の受は部、５・・・第２の受は部、６・・
・第１の螺旋部、２・・・トーション部、８・・・第２
の螺旋部。4...The first receiver is part, 5...The second receiver is part, 6...
・First spiral part, 2... Torsion part, 8... Second
spiral part.

出願人代理人　　弁理士　鈴　江　武　彦第１図 第３図 −２１・ 第６図Applicant's agent: Patent attorney Takehiko Suzue Figure 1 Figure 3 -21・ Figure 6

Claims (1)

【特許請求の範囲】[Claims] 両端に環状の受は部を有し、これら一対の受は部の間に
、一方の受は部に連続した第１の螺旋部と、他方の受は
部に連続し上記第１の螺旋部と巻き方向が逆でかつ巻き
量が少ない第２の螺旋部とがトーション部で連続して形
成されたスゲリングにおいて、このスプリングは、断面
形状が長円形状をなした鋼線によって形成されていると
ともに、上記一対の受は部および第１゜第２の螺旋部は
断面長円形状の長手方向をスプリングのほぼ軸線方向に
位置させ、トーション部はその傾斜方向に対してほぼ直
交する方向に上記長手方向を位置させていることを特徴
とするスゲリング。The annular receiver has sections at both ends, and the pair of receivers has a first spiral section between the sections, one receiver having a first spiral section continuous to the section, and the other receiver having a first spiral section continuous to the section. In a suge ring in which a torsion part is continuously formed with a second helical part whose winding direction is opposite and the amount of winding is small, this spring is formed of a steel wire having an oval cross-sectional shape. In addition, the pair of receivers has an oval cross-section with the longitudinal direction of the second helical part located approximately in the axial direction of the spring, and the torsion part has the above-mentioned part in the direction approximately perpendicular to the inclination direction thereof. A sedge ring characterized by being positioned in the longitudinal direction.