JPH01275996A - Expansive protective cover and manufacture thereof - Google Patents
Expansive protective cover and manufacture thereofInfo
- Publication number
- JPH01275996A JPH01275996A JP63106038A JP10603888A JPH01275996A JP H01275996 A JPH01275996 A JP H01275996A JP 63106038 A JP63106038 A JP 63106038A JP 10603888 A JP10603888 A JP 10603888A JP H01275996 A JPH01275996 A JP H01275996A
- Authority
- JP
- Japan
- Prior art keywords
- protective cover
- synthetic resin
- fiber
- fibers
- elastic
- 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.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 24
- 239000000057 synthetic resin Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 101100432135 Caenorhabditis elegans lap-2 gene Proteins 0.000 abstract 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 11
- 235000017491 Bambusa tulda Nutrition 0.000 description 11
- 241001330002 Bambuseae Species 0.000 description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 11
- 239000011425 bamboo Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0825—Relatively slidable coverings, e.g. telescopic
- B23Q11/0841—Relatively slidable coverings, e.g. telescopic with spirally wound coverings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、旋盤、プレス等の各種機械の族ネジや、ラム
、スピンドル、シリンダー、スクリュー等の露出軸材の
被覆に用いられる伸縮性保護カバーに関するものである
。[Detailed Description of the Invention] [Technical Field] The present invention relates to a stretchable protective cover used to cover group screws of various machines such as lathes and presses, and exposed shaft members of rams, spindles, cylinders, screws, etc. It is.
従来、前記した如き露出軸材を塵埃等の異物から保護し
たり、あるいは人体が直接軸材に接触することを防止す
るために、軸材周囲を伸縮性保護カバーで被覆すること
は知られている。このような保護カバーとしては、帯状
の弾性体を円錐体状に巻いた圧縮バネ、いわゆる竹の子
バネが一般に用いられている（特開昭５９−９４５３２
号公報、特公昭５０−３９２１５号公報等）。Conventionally, it has been known to cover the surrounding shaft material with an elastic protective cover in order to protect the exposed shaft material from dust and other foreign matter or to prevent the human body from coming into direct contact with the shaft material. There is. As such a protective cover, a compression spring made of a band-shaped elastic body wound into a conical shape, a so-called bamboo shoot spring, is generally used (Japanese Patent Laid-Open No. 59-94532).
(Japanese Patent Publication No. 50-39215, etc.).
しかしながら、従来用いられている竹の子バネは、いず
れも比重の大きい鋼鉄帯状材料を竹の千秋に巻成したも
のであるため、重量が大きく、錆やすいという欠点があ
る上、バネ性及び摩擦抵抗が強すぎるため圧縮に大きな
方を要するという欠点もあり、さらに、長尺物とした時
に、比重が大きいためにその自重により曲がりを生じる
ようになり、その長さには限界があり、さらにその製造
にも困難が伴うという欠点がある。However, conventionally used bamboo springs are made by winding a steel strip material with a high specific gravity around bamboo leaves, so they are heavy and prone to rust, and they also have poor springiness and frictional resistance. It also has the disadvantage that it is too strong and requires a large size to compress.Furthermore, when made into a long object, its high specific gravity causes it to bend due to its own weight, and there is a limit to its length, and furthermore, it is difficult to manufacture. It also has the disadvantage of being difficult.
本発明は、前記欠点の克服された伸縮性保護カバーを提
供することを目的とする。The object of the present invention is to provide a stretchable protective cover that overcomes the above-mentioned drawbacks.
本発明者らは、前記従来の鋼鉄材料の竹の子バネに見ら
れる欠点を克服するために、合成樹脂素材の竹の子バネ
を製造すへく種々研究を重ねた結果、成形材料として一
般に用いられている熱可塑性樹脂を用いても満足し得る
竹の子バネを得ることはできなかたったのを、繊維と合
成樹脂とからなる繊維強化合成樹脂材料を用いて１つの
うず巻状部材を作り、使用に当っては、これを引き伸ば
した状態で取りつけることにより伸縮性のある保護カバ
ーが得られることを見出した。In order to overcome the drawbacks of the conventional bamboo shoot springs made of steel, the present inventors have conducted various research into manufacturing bamboo shoot springs made of synthetic resin materials. Although it was not possible to obtain a satisfactory bamboo shoot spring using thermoplastic resin, we created a single spiral-shaped member using a fiber-reinforced synthetic resin material made of fibers and synthetic resin, and when using it. found that a stretchable protective cover could be obtained by attaching this in a stretched state.
〔構 成〕
本発明は、従来の伸縮性保護カバーが弾力性のある金属
製帯状物をその帯状物の一部を重ねて巻成された構造の
竹の子バネからなるのに対し、該弾力性帯状物を繊維と
合成樹脂との複合体で形成するとともに、この帯状物を
その両側縁の少なくとも大部分が重なるようにうず巻状
に重ねたことを特徴とする伸縮性保護カバーならびにそ
の製造方法に係るものである。[Structure] In contrast to the conventional elastic protective cover, which consists of a bamboo spring having a structure in which elastic metal strips are wound with a portion of the strips overlapped, the present invention A stretchable protective cover and a method for manufacturing the same, characterized in that a strip is formed of a composite of fibers and a synthetic resin, and the strips are stacked in a spiral shape so that at least a large portion of both side edges overlap. This is related to.
次に、本発明の伸縮性保護カバーを図面により説明する
。第２図は、本発明による伸縮性保護カバーの使用状態
の説明図であり、全体は竹の子バネ形状に引き伸ばされ
ている。この場合、帯状物１の重なり部２は、竹の子バ
ネ状に伸びた状態において、帯状物の巾の長さの１０〜
５０％、好ましくは１５〜３０％が重なった状態になる
ようにするのがよく、また、前記複合体中の繊維含量は
、３０〜８０容址％、好ましくは４５〜７５容量％にす
るのがよい。また、この複合体の密度は、一般には、１
．３〜２．０ｇ／ｆｆｌにするのがよい。繊維として炭
素繊維を用いる場合には、複合体の密度は、１．３〜１
．７ｇ／ｍ、好ましくは１．４〜１ 、６ｇ／ ｃａ＆
の範囲に規定するのがよい。Next, the stretchable protective cover of the present invention will be explained with reference to the drawings. FIG. 2 is an explanatory diagram of the use state of the stretchable protective cover according to the present invention, in which the whole is stretched into a bamboo shoot shape. In this case, the overlapping part 2 of the strip 1 is 10 to 10 times the width of the strip when stretched like a bamboo shoot.
The fiber content in the composite is preferably 30-80% by volume, preferably 45-75% by volume. Good. Moreover, the density of this complex is generally 1
．． It is preferable to set it at 3 to 2.0 g/ffl. When carbon fiber is used as the fiber, the density of the composite is 1.3 to 1.
．． 7g/m, preferably 1.4-1,6g/ca&
It is best to specify within the range of .
本発明においては、その成形材料としては、繊維と合成
樹脂と力）らなる繊維強化合成樹脂材料が用いられる。In the present invention, a fiber-reinforced synthetic resin material consisting of fibers, synthetic resin, and fibers is used as the molding material.
この場合、繊維としては、炭素繊維、ガラス繊維、アル
ミナ繊維等の無機繊維の他、芳香族ポリエステル繊維、
アラミド繊維等の有機繊維や金属繊維等が単独又は組合
せて用いられる。In this case, the fibers include inorganic fibers such as carbon fibers, glass fibers, and alumina fibers, as well as aromatic polyester fibers,
Organic fibers such as aramid fibers, metal fibers, etc. are used alone or in combination.
この中でも炭素繊維は弾性が高いので好ましい。Among these, carbon fiber is preferred because it has high elasticity.
繊維の形状は任意であり、繊維束状、織物（クロス）状
、一方向引揃え繊維状、編組物状、不織布状で用いるこ
とができ、またそれらの組合せを用いることができる。The shape of the fibers is arbitrary, and the fibers can be used in the form of a fiber bundle, a woven fabric (cross), a unidirectionally aligned fiber, a braided material, a nonwoven fabric, or a combination thereof.
合成樹脂としては、熱可塑性を示すもの及び熱硬化性を
示すもののいずれも使用でき、熱可塑性を示すものとし
ては、ポリカーボネート、ＡＢＳ樹脂、ポリエチレンテ
レフタレート、ポリブチレンテレフタレート、芳香族ポ
リエステル、ナイロン、芳香族ポリアミド、ポリフェニ
レンサルファイド、ポリスルフォン、ポリエーテルスル
フォン、ポリエーテルエーテルケトン等を用いることが
でき、熱硬化性を示すものとしては、例えば、エポキシ
樹脂、不飽和ポリエステル樹脂、フェノール樹脂等が用
いられる。特に、エポキシ樹脂は、粘度が低く、繊維と
のなじみがよいのでエポキシ樹脂の使用が好ましい。As the synthetic resin, both thermoplastic and thermosetting resins can be used. Examples of thermoplastic resins include polycarbonate, ABS resin, polyethylene terephthalate, polybutylene terephthalate, aromatic polyester, nylon, and aromatic resin. Polyamide, polyphenylene sulfide, polysulfone, polyether sulfone, polyether ether ketone, etc. can be used, and as those exhibiting thermosetting properties, for example, epoxy resin, unsaturated polyester resin, phenol resin, etc. can be used. In particular, it is preferable to use epoxy resin because it has a low viscosity and is compatible with fibers.
なお、本明細書で言う繊維強化合成樹脂材料には、プリ
プレグ及び非プリプレグのいずれもが包含される。Note that the fiber-reinforced synthetic resin material referred to in this specification includes both prepreg and non-prepreg.
本発明の製品は、例えば繊維と合成樹脂とからなる繊維
強化合成樹脂材料から植成される一連の帯状物を、予め
一方の面にシート状物を当ててうす巻き状に巻き重ね、
この状態において熱処理したのち、シート状物を除去す
ることによって得ることができる。この場合、熱処理は
、合成樹脂のガラス転移点温度以上、融点あるいは熱分
解温度未満の温度、例えば、エポキシ樹脂の場合では、
１００〜２００℃、好ましくは１２０〜１５０℃の温度
で行うことができる。熱処理時間は、通常、１０〜６０
分、好ましくは２０〜４０分程度である。２種類の繊維
を用いた複合体における各繊維配向角度は、製品の長軸
方向に対し各繊維配向方向が２０度以内の範囲の角度を
用いたものが長尺物にしても曲がりを生じることが少い
ので好ましい。また、製品の長軸方向に対し、繊維配向
力が２０度以内の範囲のものと、７０度から９０度の範
囲の中から選ばれる角度のものとを組合せて用いるのは
、製品の使用耐久性がよいので好ましい。The product of the present invention is produced by rolling a series of strips made of a fiber-reinforced synthetic resin material made of, for example, fibers and synthetic resin into a thin coil with a sheet material applied to one side in advance.
It can be obtained by heat-treating in this state and then removing the sheet-like material. In this case, the heat treatment is performed at a temperature higher than the glass transition point of the synthetic resin and lower than the melting point or thermal decomposition temperature, for example, in the case of epoxy resin,
It can be carried out at a temperature of 100 to 200°C, preferably 120 to 150°C. The heat treatment time is usually 10 to 60
minutes, preferably about 20 to 40 minutes. The orientation angle of each fiber in a composite using two types of fibers is such that each fiber orientation angle is within 20 degrees with respect to the long axis direction of the product, so that bending will occur even if the product is long. is preferable because it has less In addition, the use of a combination of a fiber orientation force within 20 degrees and an angle selected from 70 degrees to 90 degrees with respect to the long axis direction of the product is important for the longevity of the product. It is preferable because of its good properties.
本発明の製品を製造するための実施態様を説明すると、
エポキシ検脂を含浸させた炭素繊維一方向引揃えプリプ
レグ（厚み０ 、２５ｍｍのシート状物）を２枚、その
繊維配向方向が直交する様に重ね、さらにその上にプリ
プレグと同寸法のポリビニルフルオライドフィルムを重
ねる。これを外径４０ｍｍのマンドレル上に１１回巻き
つけ、外表面を合成樹脂フィルムにてテーピングして固
定し、全体を加熱硬化後、脱芯し、テーピングに用いた
合成樹脂フィルムを除去し、外径４４ｍｍ、内径４０ｍ
ｍのパイプうず巻状物を得た。このパイプ状うず巻状物
を長さ２５ｍｍに切断し、帯状物間のポリビニルフルオ
ライドフィルムを除去すると、内層から外層まで連続し
た繊維強化樹脂成形体帯状物で出来たうす巻き状物が得
られる。To describe the embodiment for manufacturing the product of the present invention:
Two sheets of carbon fiber unidirectionally aligned prepreg (sheets with a thickness of 0 and 25 mm) impregnated with epoxy test fat are stacked so that the fiber orientation directions are perpendicular to each other, and then polyvinyl fluorocarbon fiber of the same size as the prepreg is placed on top of them. Layer the ride film. This was wrapped 11 times around a mandrel with an outer diameter of 40 mm, the outer surface was fixed by taping with a synthetic resin film, the whole was cured by heating, the core was removed, the synthetic resin film used for taping was removed, and the outer surface was fixed. Diameter 44mm, inner diameter 40m
A pipe spiral of m was obtained. By cutting this pipe-shaped spiral to a length of 25 mm and removing the polyvinyl fluoride film between the strips, a thinly wound product made of continuous fiber-reinforced resin molded strips from the inner layer to the outer layer is obtained. .
なお、繊維プリプレグを得るには、繊維に対して合成樹
脂を、溶剤に溶かすか、あるいは常温で液状を示す合成
樹脂または常温で固体を示す合成樹脂を溶融したものを
含浸させることにより、あるいはそれらの合成樹脂を含
浸させた繊維を帯状に成形することにより得ることがで
きる。In addition, fiber prepreg can be obtained by dissolving the synthetic resin in a solvent, or by impregnating the fiber with a melted synthetic resin that is liquid at room temperature or a synthetic resin that is solid at room temperature, or by impregnating the fiber with a molten synthetic resin that is liquid at room temperature or solid at room temperature. It can be obtained by forming a fiber impregnated with a synthetic resin into a belt shape.
このようにして作られた本発明の伸縮性保護カバーは、
所要の露出軸材に予めその両端を軸材に沿って引き伸ば
した状態で取りつけて使用する。The stretchable protective cover of the present invention made in this way is
It is used by attaching it to the required exposed shaft member in advance with both ends thereof stretched along the shaft member.
この場合、取りつけられた保護カバーは竹のこ状に引き
伸ばされているため１例えば親ねじの上に該伸縮性保護
カバーを取付けたときに上端及び下端にすき間ができる
ので、第１図及び第３図のａ、ｂに示すようなすき間中
心に軸孔を有する閉鎖キャップをうず巻状帯状物の両端
に各取りつけ、これら上下の閉塞キャップを軸材に固定
して取りつけるようにするとよい。In this case, since the attached protective cover is stretched like a bamboo saw, a gap will be created at the upper and lower ends when the elastic protective cover is attached over the leadscrew. It is preferable to attach closing caps having a shaft hole at the center of the gap as shown in FIG.
本発明の伸縮性保護カバーは、繊維強化樹脂（ＦＲＰ）
製のものであるため、従来の鉄ｎ４製のものとは異なり
、軽量でかつ良好なバネ復元性を有し、しかも小さな引
張り力で伸長させることができるから従来の圧縮型に比
べて伸縮が無理なく行われ、さらに、本発明の製品は、
錆びることがなく、長期間にわたって安定に保存及び使
用することが可能である上、自重も軽いことから、長尺
物にしても曲がりを生じることが少ない。また、本発明
の製造方法は大がかりな装置が不要であり、その上寸法
精度のよい伸縮性保護カバーを効率よく製造することが
できる。また、必要によっては引き伸ばして再熱処理し
、竹のこ状として使用することも可能である。The elastic protective cover of the present invention is made of fiber reinforced resin (FRP)
Unlike conventional iron N4 products, it is lightweight and has good spring resilience, and can be expanded with a small tensile force, so it is less flexible than conventional compression types. This can be done without difficulty, and furthermore, the product of the present invention
It does not rust, can be stored and used stably for a long period of time, and is also light in weight, so it is less likely to bend even if it is made into a long item. Further, the manufacturing method of the present invention does not require large-scale equipment, and can efficiently manufacture a stretchable protective cover with good dimensional accuracy. In addition, if necessary, it can be stretched and reheated to be used as a bamboo saw.
本発明による伸縮性保護カバー（炭素繊維強化合成樹脂
製）の性状を、従来の鉄鋼製のものと対比して次表に示
す。The properties of the stretchable protective cover (made of carbon fiber-reinforced synthetic resin) according to the present invention are shown in the following table in comparison with conventional ones made of steel.
次表から明らかなように１本発明の伸縮性保護カバーは
従来の鉄鋼製のものとは異なり、軽量でかつ良好なバネ
復元性を示し、しかも小さな外力で伸長させることがで
きる。As is clear from the following table, the stretchable protective cover of the present invention, unlike conventional steel covers, is lightweight, exhibits good spring resilience, and can be stretched with a small external force.
第１図は本発明の伸縮性保護カバーの側面図を示す。第
２図は本発明の伸縮性保護カバーを所要の軸材に取りつ
けた状態の側面図を示す。第３図は本発明の伸縮性保護
カバーの上端と下端に取付けられているすき間閉鎖キャ
ップを示す。
１・・・帯状物、２・・・重なり部、ａ・・・上端すき
間閉鎖キャンプ、ｂ・・・下端すき間閉鎖キャップ。FIG. 1 shows a side view of the stretchable protective cover of the present invention. FIG. 2 shows a side view of the stretchable protective cover of the present invention attached to a required shaft member. FIG. 3 shows gap closure caps attached to the upper and lower ends of the elastic protective cover of the present invention. DESCRIPTION OF SYMBOLS 1... Belt-shaped object, 2... Overlapping part, a... Upper end gap closing camp, b... Lower end gap closing cap.
Claims (3)
部分を重ねて巻成されたうず巻状バネからなる伸縮性保
護カバーであって、該弾力性帯状物が繊維と合成樹脂と
の複合体からなることを特徴とする伸縮性保護カバー。(1) A stretchable protective cover consisting of a spiral spring wound with a series of elastic strips overlapping at least a large portion of the strips, the elastic strips being made of fibers and synthetic resin. An elastic protective cover characterized by being made of a composite material.
る熱硬化体から構成される請求項１の伸縮性保護カバー
。(2) The elastic protective cover according to claim 1, wherein the elastic band is made of a thermosetting body made of carbon fiber and thermosetting resin.
から構成された一連の帯状物をその両側縁の少なくとも
大部分が重なるように、かつ中間に薄いシート状物を介
在させてうず巻状に巻き重ね、この状態において熱処理
して、このうず巻状態を固定化させたのち、上記シート
状物を除去することを特徴とする伸縮性保護カバーの製
造方法。(3) A series of strips made of fiber-reinforced synthetic resin material consisting of fibers and synthetic resin are rolled into a spiral shape so that at least most of their side edges overlap, with a thin sheet-shaped material interposed in between. 1. A method for producing a stretchable protective cover, which comprises: rolling the sheet-like material overlappingly, heat-treating in this state to fix the spirally-wound state, and then removing the sheet-like material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63106038A JPH01275996A (en) | 1988-04-27 | 1988-04-27 | Expansive protective cover and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63106038A JPH01275996A (en) | 1988-04-27 | 1988-04-27 | Expansive protective cover and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01275996A true JPH01275996A (en) | 1989-11-06 |
Family
ID=14423471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63106038A Pending JPH01275996A (en) | 1988-04-27 | 1988-04-27 | Expansive protective cover and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01275996A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5039215A (en) * | 1973-07-12 | 1975-04-11 | ||
| JPS59196218A (en) * | 1983-04-21 | 1984-11-07 | Arisawa Seisakusho:Kk | Manufacture of frp spring |
-
1988
- 1988-04-27 JP JP63106038A patent/JPH01275996A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5039215A (en) * | 1973-07-12 | 1975-04-11 | ||
| JPS59196218A (en) * | 1983-04-21 | 1984-11-07 | Arisawa Seisakusho:Kk | Manufacture of frp spring |
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