JP2000312659A - Vacuum cleaner hose - Google Patents
Vacuum cleaner hoseInfo
- Publication number
- JP2000312659A JP2000312659A JP11248691A JP24869199A JP2000312659A JP 2000312659 A JP2000312659 A JP 2000312659A JP 11248691 A JP11248691 A JP 11248691A JP 24869199 A JP24869199 A JP 24869199A JP 2000312659 A JP2000312659 A JP 2000312659A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- tpu
- resin
- vacuum cleaner
- hard
- 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.)
- Granted
Links
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 39
- 239000011247 coating layer Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 6
- 239000000057 synthetic resin Substances 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 32
- 229920005672 polyolefin resin Polymers 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- 229920000570 polyether Polymers 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- -1 cause acid rain Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 101150042515 DA26 gene Proteins 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000282376 Panthera tigris Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
(57)【要約】
【課題】 従来のＰＶＣ製ホースと同等の柔
軟性を保持しつつ、より軽量で脱ＰＶＣを実現した電気
掃除機用ホースを提供する。
【解決手段】 軟質合成樹脂よりなるホース壁に
硬質螺旋補強体を接合して保形した電気掃除機用ホース
であって、ホース壁をポリウレタン系熱可塑性エラスト
マー（ＴＰＵ）により形成するとともに、硬質螺旋補強
体を硬鋼線にホース壁を形成するＴＰＵより硬度の高い
ＴＰＵからなる樹脂被覆層を被着して形成する。
PROBLEM TO BE SOLVED: To provide a vacuum cleaner hose which is lighter and realizes de-PVC while maintaining the same flexibility as a conventional PVC hose. SOLUTION: This is a hose for a vacuum cleaner in which a hard spiral reinforcement is joined to a hose wall made of a soft synthetic resin, and the hose wall is formed of a polyurethane-based thermoplastic elastomer (TPU). The reinforcing body is formed by applying a resin coating layer made of TPU having a higher hardness than the TPU forming the hose wall on the hard steel wire.
Description
【0001】[0001]
【発明の属する技術分野】本発明は、蛇腹状に形成され
可撓性に優れた合成樹脂製の電気掃除機用ホースに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin hose for a vacuum cleaner which is formed in a bellows shape and has excellent flexibility.
【0002】[0002]
【従来の技術】従来、この種のホースとしては、熱成形
性に優れ製造コストが安い点から塩化ビニル樹脂（ＰＶ
Ｃ）を主体に形成されたものが汎用されており、例え
ば、硬鋼線をＰＶＣによって被覆した樹脂被覆補強線材
をマンドレルの外周に螺旋状に捲回し、この樹脂被覆補
強線材の外側に、軟質ＰＶＣよりなるチューブを被覆し
たり、軟質ＰＶＣよりなるテープを螺旋状に捲回してホ
ース壁を形成するとともにマンドレルから抜き取って成
形される、ホース壁と樹脂被覆補強線材を接着一体化し
た構造のものが知られている。2. Description of the Related Art Conventionally, as a hose of this type, vinyl chloride resin (PV) has been used because of its excellent thermoformability and low production cost.
C) is mainly used, and for example, a resin-coated reinforcing wire obtained by coating a hard steel wire with PVC is spirally wound around the outer circumference of a mandrel, and a soft-coated wire is provided outside the resin-coated reinforcing wire. A structure in which a hose tube and a resin-coated reinforcing wire are bonded and integrated, which is formed by coating a tube made of PVC or spirally winding a tape made of soft PVC to form a hose wall and withdrawing it from a mandrel. It has been known.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、近年の
地球環境問題において、ＰＶＣの廃棄燃焼物が有毒ガス
を発生させたり、酸性雨の原因とされたり、ＰＶＣ自体
が発癌性物質視されたりして、その使用に制限が加えら
れる傾向にあるほか、ＰＶＣ製のホースは重量も比較的
重く取扱い難い問題があった。However, in recent global environmental problems, waste combustion products of PVC generate toxic gas, cause acid rain, and PVC itself is regarded as a carcinogenic substance. In addition, there is a tendency that the use thereof is restricted, and the hose made of PVC has a relatively heavy weight and is difficult to handle.
【0004】本発明は、上記の問題点に鑑み、従来のＰＶＣ
製ホースと同等の柔軟性を保持しつつ、より軽量で脱Ｐ
ＶＣを実現した電気掃除機用ホースを提供することを課
題とする。[0004] The present invention has been made in view of the above problems, and has been developed in consideration of the conventional PVC.
While maintaining the same flexibility as a hose made of stainless steel, it is lighter and less P
An object of the present invention is to provide a vacuum cleaner hose that realizes VC.
【0005】[0005]
【課題を解決するための手段】本発明は、上記の課題を
解決するため、下記の構成を有するものである。 （１）軟質合成樹脂よりなるホース壁に硬質螺旋補強体
を接合して保形した電気掃除機用ホースの、ホース壁を
ポリウレタン系熱可塑性エラストマー（ＴＰＵ）により
形成するとともに、硬質螺旋補強体を硬鋼線にホース壁
を形成するＴＰＵより硬度の高いＴＰＵからなる樹脂被
覆層を被着して形成する。 （２）上記（１）における硬質螺旋補強体を、硬鋼線に
ポリオレフィン系樹脂からなる樹脂被覆内層およびＴＰ
Ｕからなる樹脂被覆外層を被着して形成するとともに、
樹脂被覆内層を樹脂被覆外層よりも硬度を高く形成す
る。 （３）上記（１）におけるホース壁を多層構造とし、ポ
リエステル系ＴＰＵからなる層とポリエーテル系ＴＰＵ
からなる層とを積層して構成する。 （４）上記（１）における硬質螺旋補強体を、硬鋼線と
併設したポリオレフィン系樹脂被覆電線に硬鋼線ととも
にＴＰＵからなる樹脂被覆層を被着して形成する。SUMMARY OF THE INVENTION The present invention has the following configuration to solve the above-mentioned problems. (1) A hose for a vacuum cleaner in which a hard spiral reinforcement is joined to a hose wall made of a soft synthetic resin, and the hose wall is formed of a polyurethane thermoplastic elastomer (TPU), and the hard spiral reinforcement is formed. The hard steel wire is formed by applying a resin coating layer made of TPU having a higher hardness than the TPU forming the hose wall. (2) The hard spiral reinforcing body according to the above (1) is obtained by applying a hard steel wire to a resin-coated inner layer made of a polyolefin-based resin
A resin-coated outer layer made of U is applied and formed,
The resin-coated inner layer is formed to have a higher hardness than the resin-coated outer layer. (3) The hose wall in the above (1) has a multilayer structure, and a layer made of a polyester-based TPU and a polyether-based TPU
Are laminated. (4) The hard spiral reinforcing body in (1) is formed by applying a resin coating layer made of TPU together with the hard steel wire to a polyolefin resin-coated electric wire provided in parallel with the hard steel wire.
【0006】本発明によれば、ホース壁を形成する軟質合成
樹脂として、ＰＶＣに近い柔軟性能を有しかつＰＶＣよ
りも強度が大きいので薄肉に形成して軽量化できるＴＰ
Ｕを用い、かつ補強線材の樹脂被覆もＴＰＵで形成され
るので、ホース全体として脱ＰＶＣと軽量化を実現する
ことができる。また、補強線材である硬鋼線に高硬度の
ＴＰＵよりなる樹脂被覆層を被着したので、同材質であ
るホース壁との接着や融着が容易であると同時に、例え
ばホース成形時に補強線材をマンドレル等の成形軸に強
固に巻き付けても樹脂被覆層が破れる虞が少ない。（請
求項１）According to the present invention, as a soft synthetic resin for forming a hose wall, a TP which has a flexibility performance close to that of PVC and has a greater strength than PVC, so that it can be formed thin and lightened.
Since U is used and the resin coating of the reinforcing wire is also formed of TPU, the hose as a whole can be de-PVC and reduced in weight. In addition, since the resin coating layer made of high-hardness TPU is applied to the hard steel wire, which is a reinforcing wire, it is easy to adhere and fuse with the hose wall, which is the same material, and at the same time, for example, the reinforcing wire is formed at the time of forming the hose. Even if the resin coating layer is firmly wound around a molding shaft such as a mandrel, there is little possibility that the resin coating layer is broken. (Claim 1)
【0007】また、硬鋼線の樹脂被覆層を、ポリオレフィン
系樹脂よりなる樹脂被覆内層とＴＰＵよりなる樹脂被覆
外層の二重被覆構造とし、かつポリオレフィン系樹脂と
してＴＰＵより硬度の大きい材料を用いて、樹脂被覆層
の全体としての硬度をより大きくして、その変形や破損
の防止をより確実にすることができる。（請求項２）[0007] Further, the resin coating layer of the hard steel wire has a double coating structure of a resin coating inner layer made of a polyolefin resin and a resin coating outer layer made of a TPU, and using a material having a higher hardness than the TPU as the polyolefin resin. In addition, the hardness of the resin coating layer as a whole can be increased, and the deformation and breakage of the resin coating layer can be more reliably prevented. (Claim 2)
【0008】また、ＴＰＵからなるホース壁を多層にし、Ｔ
ＰＵのうち耐水性や耐候性などの物性に優れるポリエー
テル系のＴＰＵの層と、比較的物性は劣るが安価なポリ
エステル系のＴＰＵの層を積層して、ＴＰＵの優れた諸
特性を低コストで確保できる。（請求項３）[0008] In addition, the hose wall made of TPU is made into a multilayer,
Out of PU, a layer of polyether-based TPU with excellent properties such as water resistance and weather resistance and a layer of relatively inexpensive polyester-based TPU with relatively inferior physical properties are laminated to reduce the excellent properties of TPU at low cost. Can be secured. (Claim 3)
【0009】また、撚り銅線等をポリオレフィン系樹脂によ
って絶縁被覆した被覆電線を硬鋼線とともにＴＰＵから
なる樹脂被覆層を被着して硬質螺旋補強体に形成するこ
とにより、硬鋼線により形成する電気回路とは別に、被
覆電線により電気回路を形成するタイプの電気掃除機用
ホースについても、脱ＰＶＣと軽量化を実現することが
できる。（請求項４）[0009] Further, by forming a coated wire made of a twisted copper wire and the like insulated with a polyolefin-based resin with a resin coating layer made of TPU together with a hard steel wire to form a hard spiral reinforcement, a hard spiral wire is formed. Separately from the electric circuit, a hose for a vacuum cleaner in which an electric circuit is formed by a covered electric wire can also achieve PVC removal and weight reduction. (Claim 4)
【００１０】[0010]
【実施例】以下、本発明を図面に示す一実施例に基づい
て説明する。図中、図１は電気掃除機の全体の外観を示
し、図２は本発明の電気掃除機用ホースの正面図、図３
はホース壁の一部拡大断面図、図４は他の実施例のホー
ス壁の一部拡大断面図、図５は更に他の実施例のホース
壁の一部拡大断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. 1 is a front view of a hose for a vacuum cleaner according to the present invention, and FIG.
Is a partially enlarged sectional view of a hose wall, FIG. 4 is a partially enlarged sectional view of a hose wall of another embodiment, and FIG. 5 is a partially enlarged sectional view of a hose wall of still another embodiment.
【００１１】図１において、電気掃除機用ホースＡは、
掃除機本体１０に設けられた吸気口に接続パイプ１１を
介してホースＡの一端が接続され、ホースＡの他端は手
元操作部１２に接続され、手元操作部１２に連続して延
長管１３、続いて床用ノズル１４が接続されて電気掃除
機が構成されている。In FIG. 1, a hose A for a vacuum cleaner is
One end of a hose A is connected to an intake port provided in the cleaner body 10 through a connection pipe 11, and the other end of the hose A is connected to a hand operation unit 12, and is connected to the hand operation unit 12 to extend the extension pipe 13. Subsequently, the floor nozzle 14 is connected to form a vacuum cleaner.
【００１２】電気掃除機用ホースＡは、図２に示すよう
に、ホース壁１が全体として蛇腹形状に形成され、軟質
合成樹脂製のホース壁１は、図３に示すように、ポリエ
ステル系ＴＰＵで構成された内層２とポリエーテル系Ｔ
ＰＵで構成された外層３とからなる多層構造をなし、内
層２と外層３との間には複数のナイロン等の補強糸４を
軸方向に沿って平行に介在させている。As shown in FIG. 2, the hose A for a vacuum cleaner has a hose wall 1 formed in a bellows shape as a whole, and the hose wall 1 made of a soft synthetic resin has a polyester TPU as shown in FIG. Inner layer 2 composed of polyether-based T
It has a multilayer structure composed of an outer layer 3 made of PU, and a plurality of reinforcing yarns 4 such as nylon are interposed between the inner layer 2 and the outer layer 3 along the axial direction.
【００１３】ホース壁１を形成するポリエステル系ＴＰ
Ｕおよびポリエーテル系ＴＰＵとは、ポリウレタンのソ
フトセグメントに用いられるポリオール原料の種類によ
って区別されるもので、前者がポリエステルポリオール
が用いられるポリエステルタイプのＴＰＵを指し、後者
がポリエ−テルポリオールが用いられるポリエ−テルタ
イプのＴＰＵを指すものであるが、その性質を大きく変
えない範囲でポリアミド等の熱可塑性樹脂を適宜ブレン
ドしたものも包含するものである。なお、ホース壁１
は、ポリエステル系ＴＰＵ若しくはポリエーテル系ＴＰ
Ｕのいずれか一種のみで形成してもよいし、単層構造で
あってもよい。Polyester TP forming hose wall 1
U and polyether-based TPUs are distinguished by the type of polyol raw material used for the soft segment of the polyurethane, and the former refers to a polyester-type TPU in which a polyester polyol is used, and the latter is a polyether polyol. It refers to a polyether-type TPU, but also includes a thermoplastic resin such as polyamide appropriately blended within a range that does not significantly change its properties. In addition, hose wall 1
Is a polyester-based TPU or polyether-based TP
U may be formed of only one kind or a single-layer structure.
【００１４】ホース壁１を形成するＴＰＵは、ＪＩＳ
Ｋ ７２１５で規定する硬さ試験（スプリング式硬さ試
験（Ａ形））において、硬度４０〜８０、好ましくは５
０〜７０程度の材料が選択され、また、前記ＴＰＵに
は、種々の添加剤、例えば、可塑剤、安定剤（酸化防止
剤，紫外線吸収剤，熱安定剤など）、帯電防止剤、難燃
剤、滑剤、着色剤、充填剤、艶消し剤などを含んでいて
もよい。The TPU forming the hose wall 1 is JIS
In a hardness test (spring type hardness test (A type)) specified by K 7215, a hardness of 40 to 80, preferably 5
A material of about 0 to 70 is selected, and various additives such as a plasticizer, a stabilizer (an antioxidant, an ultraviolet absorber, and a heat stabilizer), an antistatic agent, and a flame retardant are added to the TPU. , A lubricant, a coloring agent, a filler, a matting agent, and the like.
【００１５】ホース壁１の内面には硬鋼線５の外周にＴ
ＰＵよりなる樹脂被覆層６を被着した硬質螺旋補強体を
ダブルピッチ状に添着して保形補強がなされている。こ
の樹脂被覆層６を形成するＴＰＵは、ホース壁１を形成
するＴＰＵより硬度の大きい例えば前記硬度９０前後の
材料が使用されおり、樹脂被覆層６が高い硬度を保有す
ると同時に、ホース壁１と同材質なので両者は容易に接
着あるいは融着して強固に接合している。なお、硬質螺
旋補強体は実施例に示すダブルピッチ状に限らず、一本
を捲回する単線式にしたり、３本以上の硬質螺旋補強体
を用いる多線式にすることも可能である。The inner surface of the hose wall 1 has a T
A rigid spiral reinforcing body having a resin coating layer 6 made of PU is attached in a double-pitch shape to perform shape-retaining reinforcement. The TPU forming the resin coating layer 6 is made of a material having a higher hardness than the TPU forming the hose wall 1, for example, the above-mentioned hardness of about 90. Since they are made of the same material, they are easily bonded or fused to each other and are firmly joined. The hard spiral reinforcement is not limited to the double-pitch shape shown in the embodiment, but may be a single-wire type in which one is wound, or a multi-wire type using three or more hard spiral reinforcements.
【００１６】図４は他の実施例を示し、硬鋼線５の外周
にポリエチレンやポリプロピレンなどのポリオレフィン
系樹脂よりなる樹脂被覆内層７とＴＰＵよりなる樹脂被
覆外層８を二重に被着した硬質螺旋補強体をホース壁１
に添着したもので、樹脂被覆内層７を形成するポリオレ
フィン系樹脂として前記硬度が例えば９８前後の材料を
使用し、樹脂被覆外層８を形成するＴＰＵより硬度を大
きくして、樹脂被覆層全体を高硬度にしている。本実施
例においても、内層２と直接接合する樹脂被覆外層８が
内層２と同材質なので、両者は容易に接着あるいは融着
して強固に接合することができる。FIG. 4 shows another embodiment, in which a hard steel wire 5 is provided with a resin-coated inner layer 7 made of a polyolefin resin such as polyethylene or polypropylene and a resin-coated outer layer 8 made of TPU which are double-coated on the outer periphery. Spiral reinforcement to hose wall 1
A material having the hardness of, for example, about 98 is used as the polyolefin resin forming the resin-coated inner layer 7 and has a hardness higher than that of the TPU forming the resin-coated outer layer 8 so that the entire resin coating layer has a higher height. Hardness. Also in this embodiment, since the resin-coated outer layer 8 that is directly bonded to the inner layer 2 is made of the same material as the inner layer 2, the two can be easily bonded or fused to form a strong bond.
【0017】図５は更に他の実施例を示し、硬鋼線５と併置
した撚り銅線２０に難燃性のポリエチレン樹脂等の非塩
素系樹脂よりなる絶縁被覆２１を施した絶縁電線を、硬
鋼線５とともに、ＴＰＵよりなる樹脂被覆層２２を被着
した硬質螺旋補強体をダブルピッチでホース壁１に添着
したもので、この樹脂被覆層２２を形成するＴＰＵは硬
度を前記ＪＩＳ Ｄ型の６０度程度としてより高硬度に
している。なお、前記ＴＰＵにはＡＢＳ樹脂をブレンド
して成形性の改善等を図るようにしてもよい。本実施例
においても、内層２と直接接合する樹脂被覆層２２が内
層２と同材質なので、両者は容易に接着あるいは融着し
て強固に接合することができる。FIG. 5 shows still another embodiment, in which an insulated wire in which a stranded copper wire 20 juxtaposed with a hard steel wire 5 is provided with an insulating coating 21 made of non-chlorine-based resin such as flame-retardant polyethylene resin, A hard spiral reinforcing body having a resin coating layer 22 made of TPU adhered to the hose wall 1 at a double pitch together with the hard steel wire 5, and the TPU forming the resin coating layer 22 has a hardness of the JIS D type. Of about 60 degrees for higher hardness. The TPU may be blended with an ABS resin to improve moldability and the like. Also in this embodiment, since the resin coating layer 22 that is directly bonded to the inner layer 2 is made of the same material as the inner layer 2, the two can be easily bonded or fused to form a strong connection.
【0018】[0018]
【発明の効果】以上のとおり、本発明によれば、ＰＶＣ
では困難であった無害な焼却処理が可能となり、地球環
境にとって問題が少ないほか、ＰＶＣとの重量比でおよ
そ２割乃至３割の軽量化となり、ホースの運搬・使用等
の取扱いが容易である。As described above, according to the present invention, PVC
Harmless incineration treatment, which was difficult in the past, is possible, and there are few problems for the global environment. In addition, weight is reduced by about 20% to 30% by weight with respect to PVC, and handling such as transportation and use of hoses is easy. .
【図１】電気掃除機の全体の外観図である。FIG. 1 is an overall external view of a vacuum cleaner.
【図２】本発明の電気掃除機用ホースの正面図である。FIG. 2 is a front view of the vacuum cleaner hose of the present invention.
【図３】ホース壁の一部拡大断面図である。FIG. 3 is a partially enlarged sectional view of a hose wall.
【図４】他の実施例を示すホース壁の一部拡大断面図で
ある。FIG. 4 is a partially enlarged sectional view of a hose wall showing another embodiment.
【図５】他の実施例を示すホース壁の一部拡大断面図で
ある。FIG. 5 is a partially enlarged sectional view of a hose wall showing another embodiment.
１ ホース壁 ２ 内層 ３ 外層 ４ 補強糸 ５ 硬鋼線 ６ 樹脂被覆層 ７ 樹脂被覆内層 ８ 樹脂被覆外層 ２０ 撚り銅線 ２１ 絶縁被覆 ２２ 樹脂被覆層 DESCRIPTION OF SYMBOLS 1 Hose wall 2 Inner layer 3 Outer layer 4 Reinforcement thread 5 Hard steel wire 6 Resin coating layer 7 Resin coating inner layer 8 Resin coating outer layer 20 Twisted copper wire 21 Insulation coating 22 Resin coating layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 島 嗣典 兵庫県神戸市西区高塚台２丁目１番６号 タイガースポリマー株式会社開発研究所内 Ｆターム(参考） 3B057 BA09 BA22 3H111 AA02 BA03 BA15 CA43 CB05 CB14 CC03 CC12 DA26 DB25 4F071 AA53 AA53B CA02 CD01 CD02 4J002 CK021 CK031 CK041 CL002 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tsugenori Shima 2-6-1-6, Takatsukadai, Nishi-ku, Kobe-shi, Hyogo F-term in Tigers Polymer Co., Ltd. Development Laboratory (Reference) 3B057 BA09 BA22 3H111 AA02 BA03 BA15 CA43 CB05 CB14 CC03 CC12 DA26 DB25 4F071 AA53 AA53B CA02 CD01 CD02 4J002 CK021 CK031 CK041 CL002
Claims (4)
旋補強体を接合して保形したホースであって、ホース壁
をポリウレタン系熱可塑性エラストマー（ＴＰＵ）によ
り形成するとともに、硬質螺旋補強体を硬鋼線にホース
壁を形成するＴＰＵより硬度の高いＴＰＵからなる樹脂
被覆層を被着して形成したことを特徴とする電気掃除機
用ホース。1. A hose in which a hard spiral reinforcement is joined to a hose wall made of a soft synthetic resin, and the shape of the hose is maintained. The hose wall is formed of a polyurethane thermoplastic elastomer (TPU), and the hard spiral reinforcement is formed. A hose for a vacuum cleaner wherein a hard steel wire is formed by applying a resin coating layer made of TPU having a higher hardness than a TPU forming a hose wall.
ィン系樹脂からなる樹脂被覆内層およびＴＰＵからなる
樹脂被覆外層を被着して形成するとともに、樹脂被覆内
層を樹脂被覆外層よりも硬度を高く形成した請求項１に
記載の電気掃除機用ホース。A hard helical reinforcement is formed by applying a resin-coated inner layer made of a polyolefin resin and a resin-coated outer layer made of TPU to a hard steel wire, and the resin-coated inner layer has a hardness higher than that of the resin-coated outer layer. The hose for an electric vacuum cleaner according to claim 1, which is formed to be high.
系ＴＰＵからなる層とポリエーテル系ＴＰＵからなる層
とを積層して構成した請求項１に記載の電気掃除機用ホ
ース。3. The hose for an electric vacuum cleaner according to claim 1, wherein the hose wall has a multilayer structure, and a layer made of a polyester-based TPU and a layer made of a polyether-based TPU are laminated.
被覆電線に硬鋼線とともに、ＴＰＵからなる樹脂被覆層
を被着して硬質螺旋補強体を形成した請求項１に記載の
電気掃除機用ホース。4. The vacuum cleaner for a vacuum cleaner according to claim 1, wherein a hard spiral reinforcing body is formed by applying a resin coating layer made of TPU together with the hard steel wire to the polyolefin resin-coated electric wire provided in parallel with the hard steel wire. hose.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24869199A JP3656982B2 (en) | 1999-03-03 | 1999-09-02 | Hose for vacuum cleaner |
| US09/438,380 US6192940B1 (en) | 1997-08-20 | 1999-11-12 | Hoses for electric cleaner |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11-55450 | 1999-03-03 | ||
| JP5545099 | 1999-03-03 | ||
| JP24869199A JP3656982B2 (en) | 1999-03-03 | 1999-09-02 | Hose for vacuum cleaner |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004372514A Division JP2005095668A (en) | 1999-03-03 | 2004-12-24 | Hose for vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000312659A true JP2000312659A (en) | 2000-11-14 |
| JP3656982B2 JP3656982B2 (en) | 2005-06-08 |
Family
ID=26396341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24869199A Expired - Fee Related JP3656982B2 (en) | 1997-08-20 | 1999-09-02 | Hose for vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3656982B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139180A (en) * | 2000-11-06 | 2002-05-17 | Tigers Polymer Corp | Flexible hose |
| JP2007154957A (en) * | 2005-12-02 | 2007-06-21 | Tigers Polymer Corp | Flexible hose |
-
1999
- 1999-09-02 JP JP24869199A patent/JP3656982B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002139180A (en) * | 2000-11-06 | 2002-05-17 | Tigers Polymer Corp | Flexible hose |
| JP2007154957A (en) * | 2005-12-02 | 2007-06-21 | Tigers Polymer Corp | Flexible hose |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3656982B2 (en) | 2005-06-08 |
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