JP2007083344A - Industrial wiper - Google Patents

Industrial wiper Download PDF

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JP2007083344A
JP2007083344A JP2005275682A JP2005275682A JP2007083344A JP 2007083344 A JP2007083344 A JP 2007083344A JP 2005275682 A JP2005275682 A JP 2005275682A JP 2005275682 A JP2005275682 A JP 2005275682A JP 2007083344 A JP2007083344 A JP 2007083344A
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sliding surface
wiper
lip
sliding
industrial
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Shogo Kimoto
省吾 木元
Tomokazu Yoshida
智和 吉田
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Nitta Corp
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Nitta Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an industrial wiper with a long service life and high scrapability. <P>SOLUTION: The industrial wiper 1 includes an attachment 2 to be attached to a machine tool and a lip 3 extending at one of ends of the attachment 2 slantly from the attachment 2 and having the vicinity of a sharp leading edge 6 on the back covered with a fibrous material at least in its sliding direction. The wiper 1 is used in a state that the leading edge 6 of the lip 3 is pressed against a sliding surface 60. The attachment 2 and the back of the lip 3 are continuously formed via at least two bending points 7 and 8. The wiper 1 is characterized in that an angle α between the line L1 connecting the bending point 7 closer to the sliding surface of the points 7 and 8 with the sharp leading edge 6 of the lip 3 and the sliding surface 60 is 31-38° when the edge 6 of the lip 3 is not pressed against the sliding surface 60. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、工作機械や産業機械等における切り粉、切削油等の除去に使用される工業用ワイパーに関する。   The present invention relates to an industrial wiper used for removing chips, cutting oil and the like in machine tools and industrial machines.

従来から、工作機械や産業機械等における切り粉、切削油等を除去する上で、工業用ワイパーと呼ばれるワイパーが使用されている。この工業用ワイパーとして、例えば特許文献１には、取付部と、該取付部に一体的に形成されたワイパー本体とを有し、該ワイパー本体の少なくともリップ部の摺動面側に繊維材料が設けられた工作機械用ワイパー（工業用ワイパー）が記載されている。   Conventionally, a wiper called an industrial wiper has been used to remove chips, cutting oil, and the like from machine tools, industrial machines, and the like. As this industrial wiper, for example, Patent Document 1 has a mounting portion and a wiper body formed integrally with the mounting portion, and a fiber material is provided on the sliding surface side of at least the lip portion of the wiper body. A machine tool wiper provided (industrial wiper) is described.

図２は、特許文献１に記載されているような、従来の工業用ワイパーを示す側面図である。図２に示すように、この工業用ワイパー５１は、取付部５２と、この取付部５２に対して傾斜して延設されたリップ部５３とを備えている。そして、リップ部５３の先端尖り部５６を摺動面６０に対して押し付けた状態で、図２に示す矢印方向（摺動方向）に工業用ワイパー５１を摺動させ、摺動面６０に付着した切り粉、切削油等を掻き取り面５５で除去するように構成されている。   FIG. 2 is a side view showing a conventional industrial wiper as described in Patent Document 1. As shown in FIG. As shown in FIG. 2, the industrial wiper 51 includes an attachment portion 52 and a lip portion 53 that is inclined and extended with respect to the attachment portion 52. Then, the industrial wiper 51 is slid in the arrow direction (sliding direction) shown in FIG. 2 in a state where the tip sharpened portion 56 of the lip portion 53 is pressed against the sliding surface 60, and adheres to the sliding surface 60. The scraped surface 55 is configured to remove the cut chips, cutting oil, and the like.

ここで、リップ部５３は、摺動方向に対して背面側の先端尖り部５６の周辺が繊維材料５７で被着されている。これにより、摺動面６０と先端尖り部５６周辺との摺動抵抗が低くなり、工業用ワイパー５１を高速に摺動させることが可能となる。   Here, the lip portion 53 is covered with a fiber material 57 around the tip sharpened portion 56 on the back side with respect to the sliding direction. As a result, the sliding resistance between the sliding surface 60 and the tip sharpened portion 56 is reduced, and the industrial wiper 51 can be slid at high speed.

一方、取付部５２およびリップ部５３の摺動方向に対して背面側は、１つの屈曲点５４を介して連続して形成されている。しかしながら、このような構成のワイパー５１は、寿命が短いという問題がある。   On the other hand, the back side with respect to the sliding direction of the attachment portion 52 and the lip portion 53 is continuously formed through one bending point 54. However, the wiper 51 having such a configuration has a problem that its life is short.

また、先端尖り部５６と摺動面６０との接触面圧が低く、切り粉、切削油等の掻き取り能力は必ずしも十分ではない。このため、所定の接触面圧を得るには、先端尖り部５６を摺動面６０に対して強い力で押し付ける必要があり、工作機械等で発生した切削屑が先端尖り部５６と摺動面６０との間に挟まった場合には、摺動面６０を傷つけるおそれがある。   In addition, the contact surface pressure between the tip sharpened portion 56 and the sliding surface 60 is low, and the scraping ability of chips, cutting oil, etc. is not always sufficient. For this reason, in order to obtain a predetermined contact surface pressure, it is necessary to press the tip sharpened portion 56 against the sliding surface 60 with a strong force, and the cutting waste generated by a machine tool or the like is caused by the tip sharpened portion 56 and the sliding surface. If it is sandwiched between 60, the sliding surface 60 may be damaged.

特開２０００−３５４９３４号公報JP 2000-354934 A

本発明の課題は、長寿命かつ掻き取り能力に優れた工業用ワイパーを提供することである。   An object of the present invention is to provide an industrial wiper having a long life and excellent scraping ability.

本発明者らは、上記課題を解決すべく鋭意研究を重ねた結果、以下の知見を得た。すなわち、上記のような構成の工業用ワイパーは、取付部およびリップ部の摺動方向に対して背面側が、１つの屈曲点を介して連続して形成されている。一般に、摺動面の表面には微細な凹凸が存在するが、該凹凸にワイパーの先端尖り部や掻き取り面が当接した際には、ワイパーに応力がかかる。該応力は、特にワイパーの屈曲点に集中するが、屈曲点の数が１つであると、該応力を十分に低減することができず、その結果、先端尖り部や掻き取り面等が損傷し、ワイパーの寿命が短くなるという、新たな知見を見出した。   As a result of intensive studies to solve the above problems, the present inventors have obtained the following knowledge. In other words, the industrial wiper having the above-described configuration has the back side continuously formed through one bending point with respect to the sliding direction of the mounting portion and the lip portion. In general, fine irregularities exist on the surface of the sliding surface, but when the tip of the wiper or the scraping surface comes into contact with the irregularities, stress is applied to the wiper. The stress is particularly concentrated at the bending point of the wiper. However, if the number of bending points is one, the stress cannot be reduced sufficiently, and as a result, the tip sharpened portion, the scraped surface, etc. are damaged. And found a new finding that the life of the wiper is shortened.

そこで、前記屈曲点の数を少なくとも２つで構成すると、所定の状態でワイパーを摺動させた際において、該屈曲点に集中する応力を低減することができ、その結果、ワイパーを長寿命とすることが可能となった。   Therefore, when the number of the bending points is configured by at least two, when the wiper is slid in a predetermined state, the stress concentrated on the bending point can be reduced. As a result, the wiper has a long life. It became possible to do.

また、上記のような構成の工業用ワイパーは、前記屈曲点とリップ部の先端尖り部とを結ぶ直線と、摺動面とのなす角度が、リップ部の先端尖り部を摺動面に対して押し付けない状態で４０°程度である。ここで、先端尖り部と摺動面との接触面圧を高くするには、前記角度を大きくする、すなわち９０°に近づける方が、力が加わりやすくなるので、よいと考えられる。   Further, in the industrial wiper having the above-described configuration, the angle formed between the straight line connecting the bending point and the tip sharp part of the lip part and the sliding surface is such that the tip sharp part of the lip part is in contact with the sliding surface. It is about 40 ° in a state where it is not pressed. Here, in order to increase the contact surface pressure between the tip sharpened portion and the sliding surface, it is considered better to increase the angle, that is, to approach 90 °, because a force is easily applied.

しかるに、本発明者らは、前記角度を４０°より小さい特定の角度にすると、先端尖り部と摺動面との接触面圧が高くなり、その結果、摺動面との密着性および摺動面への形状追従性が向上し、掻き取り能力に優れた工業用ワイパーが得られるという、これまでにない新たな知見を見出し、本発明を完成させるに至った。   However, the present inventors, when the angle is set to a specific angle smaller than 40 °, increases the contact surface pressure between the tip sharpened portion and the sliding surface, and as a result, adherence to the sliding surface and sliding. The present invention has been completed by finding an unprecedented new finding that an industrial wiper with improved shape following ability to the surface and excellent scraping ability can be obtained.

すなわち、本発明における工業用ワイパーは、以下の構成からなる。
（１）工作機械に取り付けられる取付部と、この取付部の一端に、該取付部に対して傾斜して延設され少なくとも摺動方向に対して背面側の先端尖り部周辺が繊維材料で被着されたリップ部とを備え、このリップ部の先端尖り部を摺動面に対して押し付けた状態で使用する工業用ワイパーであって、前記取付部およびリップ部の前記背面側は、少なくとも２つの屈曲点を介して連続して形成されており、該屈曲点のうち最も摺動面に近い屈曲点とリップ部の先端尖り部とを結ぶ直線と、前記摺動面とのなす角度αが、リップ部の先端尖り部を摺動面に対して押し付けない状態で３１〜３８°であることを特徴とする工業用ワイパー。
（２）前記繊維材料が帆布である前記（１）記載の工業用ワイパー。
（３）前記リップ部が弾性部材からなる前記（１）または（２）記載の工業用ワイパー。
（４）前記弾性部材の硬度が５０〜９０度である前記（３）記載の工業用ワイパー。 That is, the industrial wiper in the present invention has the following configuration.
(1) A mounting portion to be attached to the machine tool, and one end of the mounting portion is inclined and extended with respect to the mounting portion, and at least the periphery of the tip sharp portion on the back side with respect to the sliding direction is covered with a fiber material. An industrial wiper that is used in a state in which the tip of the lip portion is pressed against the sliding surface, and the back side of the mounting portion and the lip portion is at least 2 The angle α formed between the straight line connecting the bending point closest to the sliding surface and the tip sharp part of the lip portion and the sliding surface is formed through the two bending points. An industrial wiper characterized by being 31 to 38 ° in a state where the tip sharpened portion of the lip portion is not pressed against the sliding surface.
(2) The industrial wiper according to (1), wherein the fiber material is canvas.
(3) The industrial wiper according to (1) or (2), wherein the lip portion is made of an elastic member.
(4) The industrial wiper according to (3), wherein the elastic member has a hardness of 50 to 90 degrees.

本発明によれば、工業用ワイパーの取付部およびリップ部の摺動方向に対して背面側を少なくとも２つの屈曲点を介して連続して形成するので、所定の状態でワイパーを摺動させた際において、該屈曲点に集中する応力を低減することができ、その結果、長寿命のワイパーとすることができる。しかも、該屈曲点のうち最も摺動面に近い屈曲点とリップ部の先端尖り部とを結ぶ直線と、摺動面とのなす角度を、リップ部の先端尖り部を摺動面に対して押し付けない状態で４０°より小さい特定の角度にするので、先端尖り部と摺動面との接触面圧が高くなり、その結果、摺動面との密着性および摺動面への形状追従性が向上し、長期にわたり掻き取り能力に優れた工業用ワイパーが得られるという効果がある。   According to the present invention, since the back side is continuously formed via at least two bending points with respect to the sliding direction of the mounting portion and the lip portion of the industrial wiper, the wiper is slid in a predetermined state. In this case, the stress concentrated on the bending point can be reduced, and as a result, a long-life wiper can be obtained. In addition, the angle formed by the straight line connecting the bending point closest to the sliding surface among the bending points and the tip sharpened portion of the lip portion and the sliding surface is determined with respect to the sliding point. Since the specific angle is less than 40 ° without pressing, the contact surface pressure between the tip sharpened portion and the sliding surface is increased, and as a result, the adhesion to the sliding surface and the shape following property to the sliding surface are increased. As a result, there is an effect that an industrial wiper having excellent scraping ability over a long period of time can be obtained.

以下、本発明の工業用ワイパーについて図面を参照して詳細に説明する。図１は、本発明の工業用ワイパーの一例を示す側面図である。図１に示すように、この工業用ワイパー１は、工作機械に取り付けられる取付部２と、この取付部２の一端に、該取付部２に対して傾斜して延設されたリップ部３とを備えている。   Hereinafter, the industrial wiper of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing an example of the industrial wiper of the present invention. As shown in FIG. 1, this industrial wiper 1 includes an attachment portion 2 attached to a machine tool, and a lip portion 3 extended at an end of the attachment portion 2 so as to be inclined with respect to the attachment portion 2. It has.

取付部２は、金属製の芯金部４と、背部５とで構成されている。芯金部４は、取付部２の強度を確保する機能を有し、該芯金部４を構成する金属としては、特に限定されるものではなく、例えば鋼板等が挙げられる。   The attachment portion 2 is composed of a metal cored bar portion 4 and a back portion 5. The core metal part 4 has a function of ensuring the strength of the mounting part 2, and the metal constituting the core metal part 4 is not particularly limited, and examples thereof include a steel plate.

背部５は、芯金部４と加硫接着等により一体化されると共に、リップ部３と連続して形成されている。この背部５は、弾性部材からなるのが好ましく、該弾性部材としては、下記で説明するリップ部３を構成する弾性部材と同じものが例示できる。なお、背部５の硬度が大きい場合には、取付部２は芯金部４を設けることなく、背部５のみで構成されていてもよい。   The back part 5 is integrated with the cored bar part 4 by vulcanization adhesion or the like, and is formed continuously with the lip part 3. The back portion 5 is preferably made of an elastic member, and examples of the elastic member include the same elastic members that constitute the lip portion 3 described below. In addition, when the hardness of the back part 5 is large, the attachment part 2 may be comprised only by the back part 5 without providing the metal core part 4. FIG.

上記のような構成の取付部２は、さらに工作機械にボルト止めするための図示しないボルト挿通孔が形成されており、該ボルト挿通孔を介して、機台表面やカバー表面等のような摺動面６０に対して往復移動する工作機械に取り付けられる。   The mounting portion 2 having the above-described configuration is further formed with a bolt insertion hole (not shown) for bolting to the machine tool, and a slide such as a machine table surface or a cover surface is formed through the bolt insertion hole. It is attached to a machine tool that reciprocates relative to the moving surface 60.

リップ部３は、少なくとも図１に示す矢印Ｂの方向（摺動方向）に対して背面側の先端尖り部６の周辺が繊維材料１０で被着されている。具体的には、前記背面側の先端尖り部６から、後述する屈曲点７までが繊維材料１０で被着されている。このように、少なくとも前記背面側の先端尖り部６周辺を繊維材料１０で被着することにより、摺動面６０と先端尖り部６周辺との摺動抵抗が低くなり、工業用ワイパー１を高速に摺動させることが可能となる。   The lip portion 3 is coated with a fiber material 10 at least around the tip sharpened portion 6 on the back side with respect to the direction of arrow B (sliding direction) shown in FIG. Specifically, a fiber material 10 is attached from the pointed tip 6 on the back side to a bending point 7 described later. As described above, at least the periphery of the tip sharp part 6 on the back side is coated with the fiber material 10, the sliding resistance between the sliding surface 60 and the tip sharp part 6 is reduced, and the industrial wiper 1 can be moved at high speed. Can be slid.

繊維材料１０としては、特に限定されるものではなく、例えば脂肪族ポリアミド、芳香族ポリアミド、ポリエステル等の合成繊維、天然繊維、ガラス繊維、比較的硬度の低い金属繊維維等の一種または二種以上を使用することができる。また、繊維材料１０の形態としては、例えば織布、不織布、帆布等が挙げられ、特に帆布であるのが前記摺動抵抗をより効果的に低くできる上で好ましい。   The fiber material 10 is not particularly limited, and for example, one or more of synthetic fibers such as aliphatic polyamide, aromatic polyamide, and polyester, natural fibers, glass fibers, metal fibers having relatively low hardness, and the like. Can be used. Examples of the form of the fiber material 10 include a woven fabric, a non-woven fabric, and a canvas. In particular, a canvas is preferable because the sliding resistance can be lowered more effectively.

リップ部３は、弾性部材からなるのが好ましく、該弾性部材としては、例えば天然ゴム、イソプレンゴム、ブタジエンゴム、スチレン−ブタジエンゴム、エチレン−プロピレンゴム、ブチルゴム、クロロプレンゴム、ニトリルゴム、アクリルゴム、エピクロロヒドリンゴム、塩素化ポリエチレンゴム、シリコーンゴム、ニトリルブタジエンゴム（ＮＢＲ）、ウレタンゴム、フッ素ゴム、水素添加ニトリルブタジエンゴム（Ｈ−ＮＢＲ）等が挙げられる。これらの弾性部材は単独でまたは２種以上をブレンドして用いてもよい。   The lip portion 3 is preferably made of an elastic member. Examples of the elastic member include natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, ethylene-propylene rubber, butyl rubber, chloroprene rubber, nitrile rubber, acrylic rubber, Examples include epichlorohydrin rubber, chlorinated polyethylene rubber, silicone rubber, nitrile butadiene rubber (NBR), urethane rubber, fluorine rubber, hydrogenated nitrile butadiene rubber (H-NBR), and the like. These elastic members may be used alone or in combination of two or more.

特に、本発明では、上記で例示したもののうち、ニトリルブタジエンゴム（ＮＢＲ）、ウレタンゴム、フッ素ゴム、水素添加ニトリルブタジエンゴム（Ｈ−ＮＢＲ）から選ばれる少なくとも１種であるのが好ましい。また、上記で例示した弾性部材のうち、耐油性を有するものが好ましく選定される。   In particular, in the present invention, among those exemplified above, at least one selected from nitrile butadiene rubber (NBR), urethane rubber, fluorine rubber, and hydrogenated nitrile butadiene rubber (H-NBR) is preferable. Of the elastic members exemplified above, those having oil resistance are preferably selected.

前記弾性部材の硬度は５０〜９０度であるのがよい。これにより、リップ部３の先端尖り部６を摺動面６０に対して押し付けた際に、先端尖り部６が摺動面６０から浮き上がることがなく、切り粉、切削油等を確実に除去することができる。これに対し、前記硬度が５０度より小さいと、先端尖り部６が摺動面６０から浮き上がるおそれがあり、９０度より大きいと、切り粉、切削油等を除去できないおそれがある。前記硬度はＪＩＳ Ｋ ６２５３に準拠した値である。   The elastic member may have a hardness of 50 to 90 degrees. Thus, when the tip sharpened portion 6 of the lip portion 3 is pressed against the sliding surface 60, the tip sharpened portion 6 does not lift from the sliding surface 60, and the chips, cutting oil, etc. are reliably removed. be able to. On the other hand, when the hardness is less than 50 degrees, the tip sharpened portion 6 may be lifted from the sliding surface 60, and when it is more than 90 degrees, there is a possibility that chips, cutting oil, and the like cannot be removed. The hardness is a value based on JIS K 6253.

上記のような構成の本発明にかかる工業用ワイパー１は、リップ部３の先端尖り部６を摺動面６０に対して押し付けた状態で使用される。具体的には、図１に示す矢印Ａの方向にリップ部３の先端尖り部６を摺動面６０に対して押し付け、ついで、矢印Ｂの方向（摺動方向）に工業用ワイパー１を摺動させることで、摺動面６０に付着した切り粉、切削油等を掻き取り面９で除去することができる。   The industrial wiper 1 according to the present invention having the above-described configuration is used in a state where the tip sharpened portion 6 of the lip portion 3 is pressed against the sliding surface 60. Specifically, the tip sharpened portion 6 of the lip portion 3 is pressed against the sliding surface 60 in the direction of arrow A shown in FIG. 1, and then the industrial wiper 1 is slid in the direction of arrow B (sliding direction). By moving the chips, cutting oil and the like adhering to the sliding surface 60 can be removed by the scraping surface 9.

本発明における記摺動方向とは、図１に示す矢印Ｂの方向を意味し、より具体的には、取付部２の一端から傾斜して延設されるリップ部３の傾斜した方向を意味する。したがって、ワイパー１が摺動せずに、摺動面６０が図１に示す矢印Ｃ方向に摺動する場合であっても、前記摺動方向とは、図１に示す矢印Ｂ方向を意味する。   The sliding direction in the present invention means the direction of the arrow B shown in FIG. 1, and more specifically means the inclined direction of the lip portion 3 that is inclined and extended from one end of the mounting portion 2. To do. Accordingly, even when the wiper 1 does not slide and the sliding surface 60 slides in the direction of arrow C shown in FIG. 1, the sliding direction means the direction of arrow B shown in FIG. .

ここで、取付部２およびリップ部３の前記摺動方向に対して背面側は、２つの屈曲点７，８を介して連続して形成されている。屈曲点をこのように、少なくとも２つで構成することにより、所定の状態でワイパー１を摺動させた際において、摺動面６０の表面に存在する微細な凹凸に先端尖り部６や掻き取り面９が当接することによる屈曲点に集中する応力を低減することができ、その結果、先端尖り部６や掻き取り面９等の損傷が低減され、ワイパー１が長寿命となる。   Here, the back side of the mounting portion 2 and the lip portion 3 with respect to the sliding direction is formed continuously through two bending points 7 and 8. When the wiper 1 is slid in a predetermined state by forming at least two bending points in this way, the tip sharpened portion 6 and scraping are formed on the fine irregularities present on the surface of the sliding surface 60. The stress concentrated on the bending point due to the contact of the surface 9 can be reduced. As a result, damage to the tip sharpened portion 6 and the scraping surface 9 is reduced, and the wiper 1 has a long life.

より具体的には、ワイパー１は屈曲点７，８を有することにより、図１に示すように、屈曲点８から摺動面６０に対して投影した垂線Ｌ２と、屈曲点７および８を結ぶ線とのなす角度βを有するようになる。このような角度βを有することにより、屈曲点７，８に集中する前記応力を低減することができる。   More specifically, since the wiper 1 has the bending points 7 and 8, as shown in FIG. 1, the perpendicular L2 projected from the bending point 8 to the sliding surface 60 and the bending points 7 and 8 are connected. It has an angle β with the line. By having such an angle β, the stress concentrated on the bending points 7 and 8 can be reduced.

本発明にかかる前記屈曲点の数は、少なくとも２つであればよく、好ましくは２〜４、より好ましくは２〜３の範囲から用途に応じて任意に選定するのがよい。   The number of the bending points according to the present invention may be at least two, and is preferably arbitrarily selected from the range of 2 to 4, more preferably 2 to 3 according to the application.

さらに、本発明にかかる工業用ワイパー１は、屈曲点７，８のうち最も摺動面６０に近い屈曲点７とリップ部３の先端尖り部６とを結ぶ直線Ｌ１と、摺動面６０とのなす角度αが、リップ部３の先端尖り部６を摺動面６０に対して押し付けない状態（無荷重状態）で３１〜３８°、好ましくは３２〜３７°である。これにより、先端尖り部６を摺動面６０に対して押し付けた際には、先端尖り部６と摺動面６０との接触面圧が高くなり、その結果、摺動面６０との密着性および摺動面６０への形状追従性が向上し、摺動面６０に付着した切り粉、切削油等を確実に除去することができる。さらに、先端尖り部６を摺動面６０に対して強い力で押し付けなくても、所定の接触面圧が得られるので、工作機械等で発生した切削屑が先端尖り部６と摺動面６０との間に挟まった場合であっても、摺動面６０に傷を付けることがない。これに対して、前記角度αが上記した範囲外であると、前記接触面圧が低くなる。   Furthermore, the industrial wiper 1 according to the present invention includes a straight line L1 connecting the bending point 7 closest to the sliding surface 60 among the bending points 7 and 8 and the tip sharpened portion 6 of the lip portion 3, and the sliding surface 60. Is 31 to 38 °, preferably 32 to 37 ° in a state where the tip sharpened portion 6 of the lip portion 3 is not pressed against the sliding surface 60 (no load state). Thereby, when the tip sharpened portion 6 is pressed against the sliding surface 60, the contact surface pressure between the tip sharpened portion 6 and the sliding surface 60 is increased, and as a result, the adhesion with the sliding surface 60 is increased. In addition, the shape followability to the sliding surface 60 is improved, and chips, cutting oil, and the like attached to the sliding surface 60 can be reliably removed. Furthermore, since a predetermined contact surface pressure can be obtained without pressing the tip sharp portion 6 against the sliding surface 60 with a strong force, cutting waste generated by a machine tool or the like is generated by the tip sharp portion 6 and the sliding surface 60. The sliding surface 60 will not be damaged even if it is sandwiched between the two. On the other hand, when the angle α is out of the above range, the contact surface pressure becomes low.

前記角度αを上記所定の範囲内にすると、接触面圧が高くなる理由としては、リップ部３の先端尖り部６を摺動面６０に対して押し付けた際に、押し付け量に対するリップ部３の剛性が大きくなるので、先端尖り部６が摺動面６０に対して加える荷重が大きくなり、その結果、前記接触面圧が高くなるものと推察される。   When the angle α is within the predetermined range, the contact surface pressure increases because the tip sharpened portion 6 of the lip portion 3 is pressed against the sliding surface 60 when the lip portion 3 is pressed against the sliding amount. Since the rigidity is increased, the load applied to the sliding surface 60 by the tip sharpened portion 6 is increased, and as a result, it is assumed that the contact surface pressure is increased.

前記角度αを所定範囲に調整する方法としては、特に限定されるものではなく、例えば摺動面６０から、該摺動面６０に最も近い屈曲点７までの高さを調整し、前記角度αを所定範囲に調整する方法が挙げられる。   The method for adjusting the angle α to a predetermined range is not particularly limited. For example, the angle α is adjusted by adjusting the height from the sliding surface 60 to the bending point 7 closest to the sliding surface 60. The method of adjusting to a predetermined range is mentioned.

上記した本発明にかかる工業用ワイパー１による摺動面６０に付着した切り粉、切削油等の除去は、上述の通り、まず、図１に示す矢印Ａの方向にリップ部３の先端尖り部６を摺動面６０に対して押し付ける。この際、屈曲点７と先端尖り部６とを結ぶ前記直線Ｌ１と、摺動面６０とのなす角度αが、無荷重状態で所定の角度であるので、先端尖り部６と摺動面６０との接触面圧が高くなる。   As described above, the removal of chips, cutting oil, and the like adhering to the sliding surface 60 by the industrial wiper 1 according to the present invention described above is performed first in the direction of the arrow A shown in FIG. 6 is pressed against the sliding surface 60. At this time, since the angle α formed between the straight line L1 connecting the bending point 7 and the tip sharpened portion 6 and the sliding surface 60 is a predetermined angle in a no-load state, the tip sharpened portion 6 and the sliding surface 60 are set. The contact surface pressure increases.

ついで、矢印Ｂの方向（摺動方向）に工業用ワイパー１を摺動させ、摺動面６０に付着した切り粉、切削油等を掻き取り面９で除去する。この際、ワイパー１は、摺動方向に対して背面側の先端尖り部６周辺が繊維材料１０で被着されているので、摺動面６０と先端尖り部６周辺との摺動抵抗が低くなり、先端尖り部６と摺動面６０とが高い接触面圧で接触していても、ワイパー１を高速に摺動させることができる。   Next, the industrial wiper 1 is slid in the direction of arrow B (sliding direction), and the chips, cutting oil, etc. adhering to the sliding surface 60 are removed by the scraping surface 9. At this time, since the wiper 1 is covered with the fiber material 10 around the tip sharpened portion 6 on the back side with respect to the sliding direction, the sliding resistance between the sliding surface 60 and the tip sharpened portion 6 is low. Thus, the wiper 1 can be slid at high speed even if the tip sharpened portion 6 and the sliding surface 60 are in contact with each other with a high contact surface pressure.

さらに、摺動面６０の表面に存在する微細な凹凸に先端尖り部６や掻き取り面９が当接し、屈曲点に応力が集中しても、ワイパー１の取付部２およびリップ部３の前記背面側は２つの屈曲点７，８を介して連続して形成されているので、該応力を低減することができ、その結果、ワイパー１は長寿命となり、長期にわたり優れた掻き取り能力を示すことができる。   Further, even if the tip sharpened portion 6 or the scraping surface 9 comes into contact with fine irregularities present on the surface of the sliding surface 60 and stress concentrates on the bending point, the attachment portion 2 of the wiper 1 and the lip portion 3 described above. Since the back side is continuously formed through two bending points 7 and 8, the stress can be reduced. As a result, the wiper 1 has a long life and exhibits excellent scraping ability over a long period of time. be able to.

以下、実施例を挙げて本発明の工業用ワイパーについてさらに詳細に説明するが、本発明は以下の実施例のみに限定されるものではない。   EXAMPLES Hereinafter, although an Example is given and the industrial wiper of this invention is demonstrated in detail, this invention is not limited only to a following example.

［実施例１〜３および比較例１〜５］
（工業用ワイパーの作製）
表１に示す屈曲点の数を有し、リップ部の先端尖り部を摺動面に対して押し付けない状態で、最も摺動面に近い屈曲点とリップ部の先端尖り部とを結ぶ直線と、摺動面とがなす角度として、表１示す角度を有する工業用ワイパーをそれぞれ作製した（表１中の実施例１〜３および比較例１〜５）。 [Examples 1 to 3 and Comparative Examples 1 to 5]
(Production of industrial wipers)
A straight line having the number of bending points shown in Table 1 and connecting the bending point closest to the sliding surface and the tip sharpening portion of the lip portion in a state where the tip sharpening portion of the lip portion is not pressed against the sliding surface. Industrial wipers having the angles shown in Table 1 as the angles formed by the sliding surfaces were prepared (Examples 1 to 3 and Comparative Examples 1 to 5 in Table 1).

なお、前記角度の調整は、摺動面から、該摺動面に最も近い屈曲点までの高さを調整して行った。また、リップ部の摺動方向に対する背面側において、先端尖り部から摺動面に最も近い屈曲点までを帆布で被着した。さらに、リップ部および取付部における背部には、ニトリルブタジエンゴム（ＮＢＲ）を用いた。   The angle was adjusted by adjusting the height from the sliding surface to the bending point closest to the sliding surface. Further, on the back side with respect to the sliding direction of the lip portion, the portion from the tip sharp portion to the bending point closest to the sliding surface was attached with a canvas. Furthermore, nitrile butadiene rubber (NBR) was used for the back portion of the lip portion and the attachment portion.

上記で作製した各工業用ワイパーについて、屈曲点に生じる応力および接触面圧を評価した。各評価方法を以下に示すと共に、その結果を表１に示す。
（屈曲点に生じる応力）
各工業用ワイパーに摺動面に対して５ｍｍの変位を付与した際の、摺動面に最も近い屈曲点に生じる応力（該屈曲点における帆布とＮＢＲとの継ぎ目に生じる応力）を有限要素法に基づくシミュレーション結果より測定した。 About each industrial wiper produced above, the stress generated at the bending point and the contact surface pressure were evaluated. Each evaluation method is shown below, and the results are shown in Table 1.
(Stress generated at the bending point)
When a displacement of 5 mm is applied to the sliding surface of each industrial wiper, the stress generated at the bending point closest to the sliding surface (stress generated at the seam between the canvas and the NBR) is determined by the finite element method. Measured from the simulation results based on

（接触面圧の測定方法）
各工業用ワイパーに摺動面に対して５ｍｍの変位を付与した際の先端尖り部と摺動面との接触面圧を測定した。この測定には島津製作所社製のオートグラフＡＧＳ５００を用いた。 (Measurement method of contact surface pressure)
The contact surface pressure between the tip sharpened portion and the sliding surface when a displacement of 5 mm was applied to each industrial wiper with respect to the sliding surface was measured. For this measurement, an autograph AGS500 manufactured by Shimadzu Corporation was used.

Figure 2007083344
表１から明らかなように、実施例１〜３の工業用ワイパーは、比較例１〜５の工業用ワイパーに対して、屈曲点に生じる応力が小さく、かつ高い接触面圧を示しているのがわかる。
Figure 2007083344
 As can be seen from Table 1, the industrial wipers of Examples 1 to 3 have a lower stress at the bending point and a higher contact surface pressure than the industrial wipers of Comparative Examples 1 to 5. I understand.

本発明の工業用ワイパーの一例を示す側面図である。It is a side view which shows an example of the industrial wiper of this invention. 従来の工業用ワイパーを示す側面図である。It is a side view which shows the conventional industrial wiper.

符号の説明Explanation of symbols

１ 工業用ワイパー
２ 取付部
３ リップ部
４ 芯金部
５ 背部
６ 先端尖り部
７，８ 屈曲点
９ 掻き取り面
１０ 繊維材料
６０ 摺動面 DESCRIPTION OF SYMBOLS 1 Industrial wiper 2 Mounting part 3 Lip part 4 Core metal part 5 Back part 6 Tip sharp part 7,8 Bending point 9 Scraping surface 10 Textile material 60 Sliding surface

Claims (4)

工作機械に取り付けられる取付部と、この取付部の一端に、該取付部に対して傾斜して延設され少なくとも摺動方向に対して背面側の先端尖り部周辺が繊維材料で被着されたリップ部とを備え、このリップ部の先端尖り部を摺動面に対して押し付けた状態で使用する工業用ワイパーであって、
前記取付部およびリップ部の前記背面側は、少なくとも２つの屈曲点を介して連続して形成されており、該屈曲点のうち最も摺動面に近い屈曲点とリップ部の先端尖り部とを結ぶ直線と、前記摺動面とのなす角度αが、リップ部の先端尖り部を摺動面に対して押し付けない状態で３１〜３８°であることを特徴とする工業用ワイパー。 An attachment portion to be attached to the machine tool, and one end of the attachment portion are inclined and extended with respect to the attachment portion, and at least the periphery of the tip sharp portion on the back side with respect to the sliding direction is attached with a fiber material. An industrial wiper comprising a lip part and used in a state in which the tip sharp part of the lip part is pressed against the sliding surface,
The attachment portion and the back side of the lip portion are formed continuously through at least two bending points, and the bending point closest to the sliding surface among the bending points and the tip sharpened portion of the lip portion are formed. An industrial wiper characterized in that the angle α formed between the connecting straight line and the sliding surface is 31 to 38 ° in a state where the tip sharp part of the lip portion is not pressed against the sliding surface. 前記繊維材料が帆布である請求項１記載の工業用ワイパー。   The industrial wiper according to claim 1, wherein the fiber material is canvas. 前記リップ部が弾性部材からなる請求項１または２記載の工業用ワイパー。   The industrial wiper according to claim 1 or 2, wherein the lip portion is made of an elastic member. 前記弾性部材の硬度が５０〜９０度である請求項３記載の工業用ワイパー。

The industrial wiper according to claim 3, wherein the elastic member has a hardness of 50 to 90 degrees.

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JP2008264776A (en) * 2007-03-28 2008-11-06 Mitsuboshi Belting Ltd Wiper
JP2016129930A (en) * 2016-03-18 2016-07-21 三ツ星ベルト株式会社 Manufacturing method of wiper
CN106239244A (en) * 2015-06-11 2016-12-21 霓达株式会社 Industrial wiper and manufacture method thereof and wiping method
CN106239243A (en) * 2015-06-11 2016-12-21 霓达株式会社 Industrial wiper and wiping method
KR20180071363A (en) 2015-12-24 2018-06-27 반도 카가쿠 가부시키가이샤 A chamber member for a machine tool
EP3683014A4 (en) * 2017-09-12 2021-06-09 Nitta Corporation Machine tool wiper and method for manufacturing machine tool wiper
CN114656694A (en) * 2022-02-26 2022-06-24 江苏云睿汽车电器***有限公司 Aging-resistant and high-wear-resistance natural rubber windshield wiper rubber strip and preparation method thereof

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JP2000042863A (en) * 1998-07-29 2000-02-15 Nitta Ind Corp Industrial scraper
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JP2003311579A (en) * 2002-04-25 2003-11-05 Nitta Ind Corp Wiper for machine tool

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JP2000042863A (en) * 1998-07-29 2000-02-15 Nitta Ind Corp Industrial scraper
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JP2003311579A (en) * 2002-04-25 2003-11-05 Nitta Ind Corp Wiper for machine tool

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008264776A (en) * 2007-03-28 2008-11-06 Mitsuboshi Belting Ltd Wiper
CN106239244A (en) * 2015-06-11 2016-12-21 霓达株式会社 Industrial wiper and manufacture method thereof and wiping method
CN106239243A (en) * 2015-06-11 2016-12-21 霓达株式会社 Industrial wiper and wiping method
KR20180071363A (en) 2015-12-24 2018-06-27 반도 카가쿠 가부시키가이샤 A chamber member for a machine tool
US11260487B2 (en) 2015-12-24 2022-03-01 Bando Chemical Industries, Ltd. Machine-tool seal member
JP2016129930A (en) * 2016-03-18 2016-07-21 三ツ星ベルト株式会社 Manufacturing method of wiper
EP3683014A4 (en) * 2017-09-12 2021-06-09 Nitta Corporation Machine tool wiper and method for manufacturing machine tool wiper
US11712720B2 (en) 2017-09-12 2023-08-01 Nitta Corporation Machine tool wiper and method for manufacturing machine tool wiper
CN114656694A (en) * 2022-02-26 2022-06-24 江苏云睿汽车电器***有限公司 Aging-resistant and high-wear-resistance natural rubber windshield wiper rubber strip and preparation method thereof

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