JP2007203397A - Cutting blade and tool for peeling off surface layer - Google Patents

Cutting blade and tool for peeling off surface layer Download PDF

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JP2007203397A
JP2007203397A JP2006023714A JP2006023714A JP2007203397A JP 2007203397 A JP2007203397 A JP 2007203397A JP 2006023714 A JP2006023714 A JP 2006023714A JP 2006023714 A JP2006023714 A JP 2006023714A JP 2007203397 A JP2007203397 A JP 2007203397A
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base
cutting blade
cutting
elastic
surface layer
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JP2006023714A
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Japanese (ja)
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Mamoru Ogushi
守 大串
Masahiro Nakagome
雅宏 中込
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YAMANASHI ASAHI DIAMOND KOGYO
YAMANASHI ASAHI DIAMOND KOGYO KK
Asahi Diamond Industrial Co Ltd
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YAMANASHI ASAHI DIAMOND KOGYO
YAMANASHI ASAHI DIAMOND KOGYO KK
Asahi Diamond Industrial Co Ltd
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Priority to JP2006023714A priority Critical patent/JP2007203397A/en
Publication of JP2007203397A publication Critical patent/JP2007203397A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting blade and a tool for peeling off a surface layer, which prevent occurrence of clogging while reducing vibration generated when peeling off the surface layer on a floor surface and a wall face. <P>SOLUTION: This cutting blade 9 used in the tool 1 for peeling off the surface layer is provided with: a base 91 forming a sharp top part 91b being a cutting edge; and an elastic part 92 for covering an end face and a side face on a base end side of the base 91. A comparatively wide interval between the cutting edges is obtained to prevent chips produced when cutting from being accumulated between the cutting edges and thereby to prevent occurrence of clogging. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、切削刃及び表層剥し工具に関する。   The present invention relates to a cutting blade and a surface peeling tool.

従来より、床面や壁面等の表層に設けられた塗膜やタイル等を剥す(すなわち、床面や壁面等の表層を剥す)ための工具が考案されている。特許文献1には、このような工具の一例(電動回転工具)が記載されている。特許文献1に記載の電動回転工具は、カップホイールと、このカップホイールの表面に設けられた研削刃とを有する。研削刃には、ダイヤモンド砥粒を含有する研削面が設けられている。作業者は、この研削刃の研削面を、被研削材の被研削面に当てて被研削材の研削を行う。この研削の際には、研削刃の研削面が被研削面から受ける衝撃が振動となって研削刃からカップホイールに伝わる。この振動が、研削刃やカップホイールの破損や騒音の原因となる。この点、特許文献1に記載の電動回転工具では、振動を吸収できるクッション材や緩衝リングを用いることによって、上述のような振動の低減化が図られている。
特開2000−326197号公報
2. Description of the Related Art Conventionally, a tool has been devised for peeling a coating film, tile, or the like provided on a surface layer such as a floor surface or a wall surface (that is, peeling a surface layer such as a floor surface or a wall surface). Patent Document 1 describes an example of such a tool (electric rotary tool). The electric rotary tool described in Patent Document 1 has a cup wheel and a grinding blade provided on the surface of the cup wheel. The grinding blade is provided with a grinding surface containing diamond abrasive grains. The operator applies the grinding surface of the grinding blade to the surface to be ground of the material to be ground to grind the material to be ground. During this grinding, the impact received by the grinding surface of the grinding blade from the surface to be ground is vibrated and transmitted from the grinding blade to the cup wheel. This vibration causes damage to the grinding blade and cup wheel and noise. In this regard, in the electric rotary tool described in Patent Document 1, the above-described vibration reduction is achieved by using a cushion material and a buffer ring that can absorb vibration.
JP 2000-326197 A

しかし、特許文献1に記載の電動回転工具は、上述のような振動の低減化が図られてはいるものの、研削の際に生じる研削屑が研削面におけるダイヤモンド砥粒の間に蓄積され、目詰まりが生じ易い構造を有している。このため、研削刃の研削能力(切れ味)が低下し易くなる。   However, although the electric rotary tool described in Patent Document 1 is designed to reduce vibration as described above, grinding dust generated during grinding is accumulated between diamond grains on the grinding surface, and It has a structure that tends to clog. For this reason, the grinding ability (sharpness) of the grinding blade tends to be lowered.

そこで、本発明は、床面や壁面等の表層剥しの際に生じる振動の低減化を図りつつ目詰まりの生じにくい切削刃及び表層剥し工具を提供することを目的とする。   Then, an object of this invention is to provide the cutting blade and surface peeling tool which are hard to produce clogging, aiming at the reduction of the vibration produced at the time of surface layer peeling, such as a floor surface and a wall surface.

本発明の切削刃は、表層剥し工具に用いられる切削刃であって、刃先となる尖鋭な頂部が形成された棒状の基台と、上記基台の基端側の端面及び側面を覆う弾性部とを備える、ことを特徴とする。本発明の切削刃によれば、基台には刃先となる尖鋭な頂部が形成されている。この切削刃を表層剥し工具のベース部に複数設けた場合、基台が棒状であることに加え、切削刃の形状(幅)や切削刃同士の間隔によってスペースが作れるため、刃先同士の間隔も比較的広くとれる。従って、表層剥しの際の切削時に生じる切削屑が刃先間に蓄積されて目詰まりが生じる、ということが起こりにくくなる。更に、表層剥しの際の基台には、この基台の側面に略垂直な振動と端面に略垂直な振動とが生じる。しかし、何れの振動であっても、基台の基端側の端面及び側面を覆う弾性部により、ベース部に直接伝わることなく吸収可能となる。よって、表層剥しの際に生じる騒音を低減できるとともに、作業者の手に伝わる振動も低減できる。   The cutting blade of the present invention is a cutting blade used for a surface peeling tool, and is a rod-shaped base on which a sharp top portion serving as a cutting edge is formed, and an elastic portion that covers the end face and the side face on the base end side of the base. It is characterized by comprising. According to the cutting blade of the present invention, the base is formed with a sharp apex as a cutting edge. When multiple cutting blades are provided in the base part of the surface peeling tool, in addition to the base being rod-shaped, a space can be created depending on the shape (width) of the cutting blades and the distance between the cutting blades. It is relatively wide. Therefore, it is difficult to cause clogging due to accumulation of cutting waste generated between the cutting edges when cutting the surface layer. In addition, vibrations that are substantially perpendicular to the side surfaces of the base and vibrations that are substantially perpendicular to the end surfaces are generated on the base when the surface layer is peeled off. However, any vibration can be absorbed without being directly transmitted to the base portion by the elastic portion covering the end surface and the side surface on the base end side of the base. Therefore, noise generated when the surface layer is peeled can be reduced, and vibration transmitted to the operator's hand can be reduced.

本発明の切削刃では、上記頂部の少なくとも先端は、超砥粒焼結体又は単結晶ダイヤモンドにより構成されているのが好ましい。このように、刃先となる頂部の少なくとも先端が超砥粒焼結体又は単結晶ダイヤモンドにより構成されているため、耐摩耗性に優れている。   In the cutting blade of the present invention, it is preferable that at least the tip of the top is made of a superabrasive sintered body or single crystal diamond. As described above, since at least the tip of the top portion serving as the cutting edge is made of a superabrasive sintered body or single crystal diamond, the wear resistance is excellent.

また、本発明の表層剥し工具は、上記切削刃と、この切削刃が設けられたベース部とを備え、上記切削刃の上記基台は、この切削刃の上記弾性部を介して上記ベース部に接続されている、ことを特徴とする。本発明の表層剥し工具によれば、切削刃の基台には刃先となる尖鋭な頂部が形成されているため、切削刃の形状(幅)や切削刃同士の間隔によってスペースが作れ、よって刃先同士の間隔も比較的広くとれる。従って、表層剥しの際の切削時に生じる切削屑が刃先間に蓄積されて目詰まりが生じる、ということが起こりにくくなる。また、表層剥しの際の基台には、基台の側面に略垂直な振動と端面に略垂直な振動とが生じる。この点、本発明の表層剥し工具では、基台の基端側の端面及び側面を覆う弾性部を介して、基台がベース部に接続されているため、振動がベース部に直接伝わることなく、弾性部に吸収される。よって、表層剥しの際に生じる騒音を低減できるとともに、作業者の手に伝わる振動も低減できる。   The surface peeling tool of the present invention includes the cutting blade and a base portion on which the cutting blade is provided, and the base of the cutting blade is configured so that the base portion is interposed through the elastic portion of the cutting blade. It is connected to. According to the surface peeling tool of the present invention, the base of the cutting blade is formed with a sharp top that becomes the cutting edge, so that a space can be created depending on the shape (width) of the cutting blade and the interval between the cutting blades. The distance between each other can be relatively wide. Therefore, it is difficult to cause clogging due to accumulation of cutting waste generated between the cutting edges when cutting the surface layer. In addition, vibrations that are substantially perpendicular to the side surfaces of the base and vibrations that are substantially perpendicular to the end surfaces are generated on the base when the surface layer is peeled off. In this respect, in the surface layer peeling tool of the present invention, since the base is connected to the base portion through the elastic portion covering the end surface and the side surface of the base end side of the base, vibration is not directly transmitted to the base portion. It is absorbed by the elastic part. Therefore, noise generated when the surface layer is peeled can be reduced, and vibration transmitted to the operator's hand can be reduced.

更に、本発明の表層剥し工具では、上記ベース部は、上記切削刃の上記弾性部を収容する収容部と、上記収容部に収容された上記弾性部をこの収容部内に押さえ込んで保持する蓋部とを有し、上記収容部は、上記切削刃の上記基台をこの収容部から突出させるための孔部が設けられている。このように、切削刃の基台が孔部から突出した状態で、この切削刃の弾性部が収容部内に収容されており、そして、この弾性部が収容部内において蓋部により押さえ込まれて保持されている。よって、この弾性部に対し蓋部や収容部との間で摩擦力が生じることとなる。この摩擦力によって、切削刃は弾性部を介してベース部に安定に保持可能となる。   Furthermore, in the surface peeling tool of the present invention, the base portion includes a housing portion that houses the elastic portion of the cutting blade, and a lid portion that holds the elastic portion housed in the housing portion by pressing into the housing portion. The housing portion is provided with a hole for projecting the base of the cutting blade from the housing portion. In this way, with the base of the cutting blade protruding from the hole, the elastic portion of the cutting blade is accommodated in the accommodating portion, and the elastic portion is pressed and held by the lid portion in the accommodating portion. ing. Therefore, a frictional force is generated between the elastic part and the cover part or the accommodating part. By this frictional force, the cutting blade can be stably held on the base portion via the elastic portion.

本発明によれば、床面や壁面等の表層剥しの際に生じる振動の低減化を図りつつ目詰まりの生じにくい切削刃及び表層剥し工具が実現できる。   ADVANTAGE OF THE INVENTION According to this invention, the cutting blade and surface peeling tool which are hard to produce clogging can be implement | achieved, aiming at the reduction of the vibration which arises at the time of surface layer peeling, such as a floor surface and a wall surface.

以下、図面を参照して、本発明の好適な実施形態について詳細に説明する。なお、図面の説明においては同一要素には同一符号を付し、重複する説明を省略する場合がある。図1は、実施形態に係る表層剥し工具1の構成を示す図である。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions may be omitted. FIG. 1 is a diagram illustrating a configuration of a surface peeling tool 1 according to the embodiment.

図1に示すように、表層剥し工具1は、円盤状のベース部3と6個の切削刃9とを備える。ベース部3は、表層剥し工具1の中心軸Aに沿ってベース部3を貫通する駆動軸取り付け部5が設けられている。駆動軸取り付け部5の周囲にはメサ状部7が設けられている。駆動軸取り付け部5は、メサ状部7の平坦な頂部に設けられている。ベース部3は、表面32aと、この表面32aの反対側に位置する表面31aとを有しており、メサ状部7は、表面32aに対し凸状に設けられている。また、ベース部3には切削刃9が設けられている。   As shown in FIG. 1, the surface peeling tool 1 includes a disk-shaped base portion 3 and six cutting blades 9. The base portion 3 is provided with a drive shaft attachment portion 5 that penetrates the base portion 3 along the central axis A of the surface peeling tool 1. A mesa portion 7 is provided around the drive shaft attachment portion 5. The drive shaft attachment portion 5 is provided on the flat top of the mesa portion 7. The base portion 3 has a surface 32a and a surface 31a located on the opposite side of the surface 32a, and the mesa portion 7 is provided in a convex shape with respect to the surface 32a. A cutting blade 9 is provided on the base portion 3.

ベース部3は、収容部31と蓋部32とを有する。収容部31には、中心軸Aに沿って収容部31を貫通する孔部31dが設けられており、孔部31dの周囲にはメサ状部31eが設けられている。孔部31dは、メサ状部31eの平坦な頂部に設けられている。収容部31は、底壁31cの周端に沿って設けられた側壁31bを有する。収容部31には、側壁31bに沿って(底壁31cの周端に沿って)6個の切削刃9が略等間隔に設けられている。収容部31は、鉄系若しくは非鉄カーボン系材料、又はガラスエポキシ若しくはアクリル樹脂等によって成る。   The base part 3 includes a storage part 31 and a lid part 32. The accommodating portion 31 is provided with a hole portion 31d penetrating the accommodating portion 31 along the central axis A, and a mesa portion 31e is provided around the hole portion 31d. The hole 31d is provided at the flat top of the mesa portion 31e. The accommodating part 31 has the side wall 31b provided along the peripheral end of the bottom wall 31c. In the accommodating portion 31, six cutting blades 9 are provided at substantially equal intervals along the side wall 31b (along the peripheral end of the bottom wall 31c). The accommodating portion 31 is made of an iron-based or non-ferrous carbon-based material, glass epoxy, acrylic resin, or the like.

蓋部32は、中心軸Aに沿って蓋部32を貫通する孔部32cが設けられており、孔部32cの周囲にはメサ状部32dが設けられている。孔部32cは、メサ状部32dの平坦な頂部に設けられている。蓋部32は、収容部31に収容された切削刃9を保持するためのものである。蓋部32は、鉄系若しくは非鉄カーボン系材料、又はガラスエポキシ若しくはアクリル樹脂等によって成る。メサ状部31eとメサ状部32dとが重なり合ってメサ状部7が構成されており、孔部31dと孔部32cとが連結されて駆動軸取り付け部5が構成されている。   The lid portion 32 is provided with a hole portion 32c penetrating the lid portion 32 along the central axis A, and a mesa portion 32d is provided around the hole portion 32c. The hole 32c is provided at the flat top of the mesa portion 32d. The lid portion 32 is for holding the cutting blade 9 accommodated in the accommodating portion 31. The lid 32 is made of an iron-based or non-ferrous carbon-based material, glass epoxy, acrylic resin, or the like. The mesa-shaped portion 7 is configured by overlapping the mesa-shaped portion 31e and the mesa-shaped portion 32d, and the drive shaft mounting portion 5 is configured by connecting the hole portion 31d and the hole portion 32c.

図2は、実施形態に係る切削刃9の構成を説明するための図である。図2(a)は、切削刃9の斜視図であり、図2(b)は、切削刃9の内部構成を説明するための分解斜視図である。図3は、図2(a)に示すI―I線に沿ってとられた切削刃9の断面図である。   FIG. 2 is a view for explaining the configuration of the cutting blade 9 according to the embodiment. FIG. 2A is a perspective view of the cutting blade 9, and FIG. 2B is an exploded perspective view for explaining the internal configuration of the cutting blade 9. FIG. 3 is a cross-sectional view of the cutting blade 9 taken along the line II shown in FIG.

図2(a)及び図2(b)に示すように、切削刃9は、基台91と弾性部92とを有している。基台91は、本体部91a、頂部91b、端部91c及び側面部91dを有している。本体部91aは、棒状体であり、本体部91aの長手方向の一端には刃先となる尖鋭な頂部91bが設けられている。頂部91bのうち少なくとも先端には、ダイヤモンドやCBN等の超砥粒の焼結体、又は単結晶ダイヤモンド等によって成る刃先部8が設けられている。このため、切削刃9は耐摩耗性に優れている。   As shown in FIGS. 2A and 2B, the cutting blade 9 has a base 91 and an elastic portion 92. The base 91 has a main body portion 91a, a top portion 91b, an end portion 91c, and a side surface portion 91d. The main body 91a is a rod-shaped body, and a sharp apex 91b serving as a cutting edge is provided at one end in the longitudinal direction of the main body 91a. A blade edge portion 8 made of a sintered body of superabrasive grains such as diamond or CBN or single crystal diamond is provided at least at the tip of the top portion 91b. For this reason, the cutting blade 9 is excellent in wear resistance.

頂部91b(刃先部8を含む)はテーパ状(円錐形や角錐形等)に形成されている。このテーパ状に形成された頂部91b(刃先部8)の角度、すなわち、頂部91b(刃先部8)の先端から基台91の基端側(端部91cが設けられている側)に向かって頂部91b(刃先部8)が広がっている角度(頂部91b等が角錐形の場合には、稜角や面角)は、60度〜160度の範囲にあるが、90度〜120度が好ましく、100度程度がより好ましい。刃先部8に用いる単結晶ダイヤモンドは、例えば8面体のダイヤモンドや、12面体のダイヤモンド等である。なお、刃先部8は、頂部91bの一部(先端)であってもよいが、頂部91bの全てが刃先部8として形成されていてもよい。   The top portion 91b (including the cutting edge portion 8) is formed in a tapered shape (conical shape, pyramid shape, etc.). The angle of the tapered top portion 91b (blade edge portion 8), that is, from the distal end of the top portion 91b (blade edge portion 8) toward the proximal end side (the side on which the end portion 91c is provided) of the base 91. The angle at which the apex 91b (blade edge 8) is widened (when the apex 91b or the like is a pyramid, the ridge angle or the face angle) is in the range of 60 degrees to 160 degrees, preferably 90 degrees to 120 degrees, About 100 degrees is more preferable. The single crystal diamond used for the blade edge portion 8 is, for example, octahedral diamond, dodecahedron diamond, or the like. The cutting edge portion 8 may be a part (tip) of the top portion 91b, but the entire top portion 91b may be formed as the cutting edge portion 8.

弾性部92は、第1の部分92a及び第2の部分92bを有している。第1の部分92a及び第2の部分92bは、クッション性を有する素材によって成り、例えば、天然若しくは合成のポリウレタン、又はEPDM(エチレン・プロピレン・ジエン)、又はゴム材等によって成る。第2の部分92bは嵌め込み部11及び孔部13を有する。嵌め込み部11には、基台91の端部91cが嵌め込まれている。孔部13には基台91の本体部91aが挿通されており、本体部91aは第2の部分92bから突出している。   The elastic portion 92 has a first portion 92a and a second portion 92b. The first portion 92a and the second portion 92b are made of a cushioning material, such as natural or synthetic polyurethane, EPDM (ethylene propylene diene), or a rubber material. The second portion 92 b has a fitting portion 11 and a hole portion 13. An end 91 c of the base 91 is fitted into the fitting portion 11. The main body 91a of the base 91 is inserted through the hole 13, and the main body 91a protrudes from the second portion 92b.

また、図3に示すように、第2の部分92bは、基台91の側面部91dのうち基端側の部分と端部91cの側面とに密着しており、側面部91dのうちこの密着した部分と端部91cの側面とを覆っている。また、第1の部分92aは、嵌め込み部11に嵌め込まれた基台91の端部91c(特に、端部91cの表面であり、基台91の端面)を覆うように、第2の部分92bに接着剤等を介して貼り付けられている。このように、基台91のうち、端部91cと側面部91dの一部とを含む基端側の端面と側面とは、弾性部92によって覆われている(包み込まれている)。第1の部分92aは基端側の端面(端部91cの表面)を覆い、第2の部分92bは基端側の側面(端部91cの側面、及び側面部91dの基端側の側面)を覆う。   Further, as shown in FIG. 3, the second portion 92b is in close contact with the portion on the base end side of the side surface portion 91d of the base 91 and the side surface of the end portion 91c. The covered portion and the side surface of the end portion 91c are covered. Further, the first portion 92a is configured to cover the end portion 91c of the base 91 fitted into the fitting portion 11 (particularly, the surface of the end portion 91c, and the end surface of the base 91). It is affixed via an adhesive or the like. In this manner, the base end side end surface and the side surface of the base 91 including the end portion 91c and a part of the side surface portion 91d are covered (encased) by the elastic portion 92. The first portion 92a covers the base end side end surface (the surface of the end portion 91c), and the second portion 92b covers the base end side surface (the side surface of the end portion 91c and the base end side surface of the side surface portion 91d). Cover.

図4は、表層剥し工具1の構成を示す分解斜視図であり、図5は、表層剥し工具1の斜視図である。図4に示すように、収容部31の底壁31cには、切削刃9の基台91を挿通するための孔部12が、底壁31cの周縁に沿って(側壁31bに沿って)6箇所に設けられている。孔部12は、切削刃9の基台91を収容部31から(すなわち、ベース部3の表面31aから)突出させるためのものである。基台91は、図5に示すように、孔部12を介して収容部31から(すなわち、ベース部3の表面31aから)突出している。このように、切削刃9の基台91は、弾性部92を介してベース部3に接続されている。   FIG. 4 is an exploded perspective view showing the configuration of the surface peeling tool 1, and FIG. 5 is a perspective view of the surface peeling tool 1. As shown in FIG. 4, a hole 12 for inserting the base 91 of the cutting blade 9 is formed in the bottom wall 31c of the housing portion 31 along the periphery of the bottom wall 31c (along the side wall 31b). It is provided in the place. The hole portion 12 is for projecting the base 91 of the cutting blade 9 from the housing portion 31 (that is, from the surface 31a of the base portion 3). As shown in FIG. 5, the base 91 protrudes from the accommodating portion 31 through the hole 12 (that is, from the surface 31 a of the base portion 3). Thus, the base 91 of the cutting blade 9 is connected to the base part 3 via the elastic part 92.

図6は、表層剥し工具1の側面図であり、図7は、中心軸Aに沿ってとられた表層剥し工具1の断面図である。図6及び図7に示す表層剥し工具1では、収容部31内に切削刃9の弾性部92が収容されている。蓋部32は、収容部31に収容された弾性部92を収容部31内に押さえ込んで保持する。蓋部32(特にメサ状部32dの平坦な頂部)は、図中符号B1に示す向きに押圧力が作用し、収容部31(特にメサ状部31eの平坦な頂部)は図中符号B2に示す向きに押圧力が作用する。図中符号B2に示す向きと図中符号B1に示す向きとは互いに逆向きである。なお、図中符号B1の向きの押圧力と図中符号B2の向きの押圧力とは、例えば、図9に示すようなナット59によるボルト締めにより実現される。このような押圧力の作用により、弾性部92が収容部31と蓋部32とから圧迫される。これにより、弾性部92の第1の部分92aの表面が蓋部32の表面32bと密着し、弾性部92と蓋部32との間に大きな摩擦力が生じる。また、弾性部92の第2の部分92bの表面が収容部31の底壁31cと密着し、弾性部92と収容部31との間に大きな摩擦力が生じる。このため、この摩擦力によって、弾性部92が、収容部31の底壁31cと蓋部32の表面32bとの間に挟まれた状態で収容部31内に安定に保持される。   FIG. 6 is a side view of the surface peeling tool 1, and FIG. 7 is a cross-sectional view of the surface peeling tool 1 taken along the central axis A. In the surface peeling tool 1 shown in FIGS. 6 and 7, the elastic portion 92 of the cutting blade 9 is accommodated in the accommodating portion 31. The lid part 32 holds the elastic part 92 accommodated in the accommodating part 31 by pressing it into the accommodating part 31. The lid portion 32 (particularly the flat top portion of the mesa-like portion 32d) is pressed in the direction indicated by the symbol B1 in the figure, and the accommodating portion 31 (particularly the flat top portion of the mesa-like portion 31e) is indicated by the symbol B2 in the figure. A pressing force acts in the direction shown. The direction indicated by reference sign B2 in the figure and the direction indicated by reference sign B1 in the figure are opposite to each other. Note that the pressing force in the direction of B1 in the drawing and the pressing force in the direction of B2 in the drawing are realized, for example, by bolting with a nut 59 as shown in FIG. The elastic portion 92 is pressed from the housing portion 31 and the lid portion 32 by the action of such a pressing force. Thereby, the surface of the first portion 92 a of the elastic portion 92 is in close contact with the surface 32 b of the lid portion 32, and a large frictional force is generated between the elastic portion 92 and the lid portion 32. Further, the surface of the second portion 92 b of the elastic portion 92 is in close contact with the bottom wall 31 c of the housing portion 31, and a large frictional force is generated between the elastic portion 92 and the housing portion 31. For this reason, the elastic portion 92 is stably held in the housing portion 31 by this frictional force while being sandwiched between the bottom wall 31 c of the housing portion 31 and the surface 32 b of the lid portion 32.

上述の実施形態に係る表層剥し工具1は、例えば、図8及び図9に示す表層剥し装置50に用いられる。図8は、表層剥し装置50の斜視図である。図9は、図8に示すII―II線に沿ってとられた表層剥し装置50の断面図である。図8及び図9に示す表層剥し装置50は、作業者が片手(若しくは両手)で操作可能なハンディタイプの機器である。なお、表層剥し工具1は、大型であって、手で押しながら表層剥しを行う、所謂、手押しタイプの表層剥し装置(図示略)に用いてもよい。表層剥し装置50は、図8に示すように、カバー51、連結部53及び吸引ホース55を備えており、図9に示すように、表層剥し工具1、駆動軸57及びナット59を更に備える。   The surface layer peeling tool 1 which concerns on the above-mentioned embodiment is used for the surface layer peeling apparatus 50 shown in FIG.8 and FIG.9, for example. FIG. 8 is a perspective view of the surface peeling apparatus 50. FIG. 9 is a cross-sectional view of the surface peeling apparatus 50 taken along the line II-II shown in FIG. The surface peeling apparatus 50 shown in FIG.8 and FIG.9 is a handy type apparatus which an operator can operate with one hand (or both hands). The surface peeling tool 1 is large and may be used in a so-called hand-push type surface peeling device (not shown) that peels the surface layer while being pushed by hand. As shown in FIG. 8, the surface peeling apparatus 50 includes a cover 51, a connecting portion 53, and a suction hose 55, and further includes a surface peeling tool 1, a drive shaft 57, and a nut 59, as shown in FIG.

カバー51は、表層剥し工具1を覆うカバーであり、このカバー51には吸引ホース55の連結部53が設けられている。吸引ホース55は、連結部53を介してカバー51の内側に連通している。カバー51内で生じた切削屑が連結部53及び吸引ホース55を介して外部に排出される。   The cover 51 is a cover that covers the surface peeling tool 1, and a connecting portion 53 of a suction hose 55 is provided on the cover 51. The suction hose 55 communicates with the inside of the cover 51 through the connecting portion 53. Cutting waste generated in the cover 51 is discharged to the outside through the connecting portion 53 and the suction hose 55.

駆動軸57は、駆動モータの回転軸(図示略)に連結されており、この駆動モータの回転軸の回転により回転する。表層剥し工具1の駆動軸取り付け部5には駆動軸57が挿入されており、表層剥し工具1は、ナット59によって駆動軸57に対し着脱可能にねじ止めされている。このナット59によるねじ止めによって収容部31と蓋部32とが互いに押し合わされる。すなわち、収容部31と蓋部32とに対し、図6及び図7における図中符号B1及び図中符号B2に示す向きの押圧力が作用する。このような押圧力の作用により、切削刃9の弾性部92が、蓋部32と収容部31とから圧迫される。このため、弾性部92は、収容部31の底壁31cと蓋部32の表面32bとの間で大きな摩擦力が生じる。この摩擦力により弾性部92が収容部31内において安定に保持される。   The drive shaft 57 is connected to a rotation shaft (not shown) of the drive motor, and rotates by rotation of the rotation shaft of the drive motor. A drive shaft 57 is inserted into the drive shaft mounting portion 5 of the surface peeling tool 1, and the surface peeling tool 1 is detachably screwed to the drive shaft 57 by a nut 59. The accommodating portion 31 and the lid portion 32 are pressed against each other by screwing with the nut 59. That is, the pressing force in the direction indicated by the reference sign B1 and the reference sign B2 in FIGS. 6 and 7 acts on the accommodating portion 31 and the lid portion 32. The elastic portion 92 of the cutting blade 9 is pressed from the lid portion 32 and the accommodating portion 31 by the action of such pressing force. For this reason, the elastic portion 92 generates a large frictional force between the bottom wall 31 c of the housing portion 31 and the surface 32 b of the lid portion 32. The elastic portion 92 is stably held in the housing portion 31 by this frictional force.

以上説明したように、表層剥し工具1は、刃先となる尖鋭な頂部91bが基台91に形成された切削刃9を複数有する。切削刃9の基台91は棒状体であるため、刃先同士の間隔も比較的広くとれる。従って、表層剥しの際に生じる切削屑が刃先間に蓄積されて目詰まりが生じる、ということが起こりにくくなる。また、基台91には基端側の端部91cと側面部91dとを覆う(包み込む)弾性部92が設けられている。そして、基台91が弾性部92を介してベース部3に接続されている。このため、表層剥しの際には、基台91の側面に略垂直な振動と端面に略垂直な振動とが基台91に生じるが、このような振動全体がベース部3に直接伝わることなく弾性部92に吸収され、そして緩和される。よって、表層剥しの際に生じる騒音を低減できるとともに、作業者の手に伝わる振動も低減できる。   As described above, the surface peeling tool 1 has a plurality of cutting blades 9 each having a sharp top 91b as a cutting edge formed on the base 91. Since the base 91 of the cutting blade 9 is a rod-shaped body, the distance between the cutting edges can be relatively wide. Therefore, it becomes difficult to cause clogging due to accumulation of cutting waste generated during surface peeling between the cutting edges. The base 91 is provided with an elastic portion 92 that covers (wraps) the end portion 91c and the side surface portion 91d on the base end side. A base 91 is connected to the base portion 3 via an elastic portion 92. For this reason, when the surface layer is peeled off, vibration substantially perpendicular to the side surface of the base 91 and vibration substantially perpendicular to the end face are generated in the base 91, but such vibration is not directly transmitted to the base portion 3. It is absorbed by the elastic part 92 and relaxed. Therefore, noise generated when the surface layer is peeled can be reduced, and vibration transmitted to the operator's hand can be reduced.

また、表層剥しの際に基台91に生じる振動のうち、基台91の端面に略垂直な振動が弾性部92の第1の部分92aに吸収され、基台91の側面(側面部91d)に略垂直な振動が弾性部92の第2の部分92bに吸収される。従って、基台91に生じる振動全体が弾性部92に効果的に吸収される。   Of the vibrations generated on the base 91 when the surface layer is peeled off, vibrations substantially perpendicular to the end surface of the base 91 are absorbed by the first portion 92a of the elastic portion 92, and the side surface (side surface portion 91d) of the base 91 is absorbed. The vibration substantially perpendicular to the second portion 92b is absorbed by the second portion 92b of the elastic portion 92. Accordingly, the entire vibration generated in the base 91 is effectively absorbed by the elastic portion 92.

また、弾性部92は、収容部31内において蓋部32により押さえ込まれて保持されている。よって、切削刃9は弾性部92を介してベース部3に安定に設けられているとともに、切削刃9の基台91からベース部3に伝わる振動が弾性部92により低減される。また、蓋部32を収容部31から取り外すことにより、切削刃9の取り付け及び取り外しが容易に行える。例えばナット59を緩める等して蓋部32を収容部31から取り外すことにより、ベース部3に対する切削刃9の取り付け及び取り外しが容易に行える。よって、磨耗等により切削刃9の交換が必要になった場合であっても、切削刃9の交換が容易に行える。   Further, the elastic portion 92 is pressed and held by the lid portion 32 in the housing portion 31. Therefore, the cutting blade 9 is stably provided on the base portion 3 via the elastic portion 92, and vibration transmitted from the base 91 of the cutting blade 9 to the base portion 3 is reduced by the elastic portion 92. Moreover, by removing the cover part 32 from the accommodating part 31, the cutting blade 9 can be attached and removed easily. For example, the cutting blade 9 can be easily attached to and detached from the base portion 3 by detaching the lid portion 32 from the accommodating portion 31 by loosening the nut 59 or the like. Therefore, even when it is necessary to replace the cutting blade 9 due to wear or the like, the cutting blade 9 can be easily replaced.

また、中心軸Aの周りをベース部3が高速回転する場合、ベース部3内に収容された弾性部92に遠心力が作用する。この遠心力により中心軸Aから離れる向きに切削刃9の弾性部92が引き伸ばされる。しかし、側壁31bによって、このような遠心力による弾性部92の引き伸ばしが回避できる。   Further, when the base part 3 rotates at high speed around the central axis A, centrifugal force acts on the elastic part 92 accommodated in the base part 3. Due to this centrifugal force, the elastic portion 92 of the cutting blade 9 is stretched away from the central axis A. However, the extension of the elastic portion 92 due to the centrifugal force can be avoided by the side wall 31b.

なお、本発明に係る表層剥し工具は、上記説明した表層剥し工具1に限るものではなく、詳細構成や詳細形状等は他のものであってもよい。例えば、切削刃9の基台91の形状を棒状体としたが、他の形状(例えば、基台91の全体がテーパ状になっているもの等)であってもよい。また、ベース部3の平面形状は円盤状でなくてもよく、例えば矩形状等の他の形状であってもよい。この場合、作業者が表層剥し工具1を手に持って被切削面を擦るようにして用いる。また、収容部31に収容する切削刃9(基台91)の数は6個に限らない。また、切削刃9の弾性部92がベース部3内に埋め込まれていてもよい。また、切削刃9の弾性部92は、第1の部分92aと第2の部分92bとが一体形成されたものであってもよい。この場合、切削刃9は、基台91が弾性部92に埋め込まれた構成となる。   In addition, the surface layer peeling tool which concerns on this invention is not restricted to the surface layer peeling tool 1 demonstrated above, A detailed structure, a detailed shape, etc. may be another. For example, the shape of the base 91 of the cutting blade 9 is a rod-like body, but other shapes (for example, the whole base 91 is tapered) may be used. Further, the planar shape of the base portion 3 may not be a disk shape, and may be another shape such as a rectangular shape. In this case, the operator holds the surface peeling tool 1 in his hand and rubs the surface to be cut. Further, the number of cutting blades 9 (bases 91) accommodated in the accommodating portion 31 is not limited to six. Further, the elastic portion 92 of the cutting blade 9 may be embedded in the base portion 3. Further, the elastic portion 92 of the cutting blade 9 may be one in which the first portion 92a and the second portion 92b are integrally formed. In this case, the cutting blade 9 has a configuration in which the base 91 is embedded in the elastic portion 92.

また、切削刃9に替えて、図10及び図11に示すような切削刃9aを用いてもよい。図10は、切削刃9aの構成を説明するための図である。図10(a)は、切削刃9aの斜視図であり、図10(b)は、切削刃9aの分解斜視図である。図11は、図10(a)に示すIII―III線に沿ってとられた切削刃9aの断面図である。   Moreover, it may replace with the cutting blade 9 and may use the cutting blade 9a as shown in FIG.10 and FIG.11. FIG. 10 is a diagram for explaining the configuration of the cutting blade 9a. FIG. 10A is a perspective view of the cutting blade 9a, and FIG. 10B is an exploded perspective view of the cutting blade 9a. FIG. 11 is a cross-sectional view of the cutting blade 9a taken along line III-III shown in FIG.

図10に示すように、切削刃9aは、二個の基台91と一個の弾性部93とを有している。弾性部93は、第1の部分93a及び第2の部分93bを有している。第1の部分93a及び第2の部分93bは、クッション性を有する素材によって成り、例えば、天然若しくは合成のポリウレタン、又はEPDM(エチレン・プロピレン・ジエン)、又はゴム材等によって成る。第2の部分93bは嵌め込み部11と孔部13とを二組有する。一組の嵌め込み部11及び孔部13を介して一個の基台91が第2の部分93bに装着される。孔部13には基台91の本体部91aが挿通されており、本体部91aは第2の部分93bから突出している。嵌め込み部11には基台91の端部91cが嵌めこまれている。   As shown in FIG. 10, the cutting blade 9 a has two bases 91 and one elastic part 93. The elastic part 93 has a first part 93a and a second part 93b. The first portion 93a and the second portion 93b are made of a cushioning material, such as natural or synthetic polyurethane, EPDM (ethylene propylene diene), or a rubber material. The second portion 93 b has two sets of the fitting portion 11 and the hole portion 13. One base 91 is attached to the second portion 93b through a set of fitting portions 11 and holes 13. The main body 91a of the base 91 is inserted through the hole 13, and the main body 91a protrudes from the second portion 93b. An end 91 c of the base 91 is fitted in the fitting portion 11.

また、図11に示すように、第2の部分93bは、基台91の側面部91dのうち基端側の部分と端部91cの側面とに密着しており、側面部91dのうちこの密着した部分と端部91cの側面とを覆っている。また、第1の部分93aは、嵌め込み部11に嵌め込まれた基台91の端部91c(特に、端部91cの表面であり、基台91の端面)を覆うように、第2の部分93bに接着剤等を介して貼り付けられている。このように、基台91のうち、端部91cと側面部91dの一部とを含む基端側の端面と側面とは、弾性部93によって覆われている(包み込まれている)。すなわち、第1の部分93aは基端側の端面(端部91cの表面)を覆い、第2の部分93bは基端側の側面(端部91cの側面、及び側面部91dの基端側の側面)を覆う。   Further, as shown in FIG. 11, the second portion 93b is in close contact with the base end side portion of the side surface portion 91d of the base 91 and the side surface of the end portion 91c. The covered portion and the side surface of the end portion 91c are covered. In addition, the first portion 93a is a second portion 93b so as to cover the end portion 91c of the base 91 fitted into the fitting portion 11 (particularly, the surface of the end portion 91c and the end surface of the base 91). It is affixed via an adhesive or the like. Thus, the base end side end surface and the side surface of the base 91 including the end portion 91c and a part of the side surface portion 91d are covered (encased) by the elastic portion 93. That is, the first portion 93a covers the base end side end surface (the surface of the end portion 91c), and the second portion 93b covers the base end side surface (the side surface of the end portion 91c and the base end side of the side surface portion 91d). Cover the side).

図12は、6個の切削刃9aが収容された収容部31の平面図である。図12に示す収容部31には、切削刃9aの基台91を挿通し、ベース部3から(すなわち、収容部31の表面31aから)突出させるための孔部12が、底壁31cの周縁に沿って(側壁31bに沿って)12箇所設けられている(図示略)。弾性部93の平面形状は、底壁31cの周縁に沿った(側壁31bに沿った)形状(例えば曲線形状等)になっている。   FIG. 12 is a plan view of the accommodating portion 31 in which six cutting blades 9a are accommodated. 12, the hole 12 for inserting the base 91 of the cutting blade 9a and projecting from the base portion 3 (that is, from the surface 31a of the housing portion 31) has a peripheral edge of the bottom wall 31c. 12 (along the side wall 31b) are provided (not shown). The planar shape of the elastic portion 93 is a shape (eg, a curved shape) along the periphery of the bottom wall 31c (along the side wall 31b).

なお、切削刃9aの弾性部93は、第1の部分93aと第2の部分93bとが一体形成されたものであってもよい。この場合、切削刃9aは、基台91が弾性部93に埋め込まれた構成となる。また、切削刃9aの弾性部93がベース部3内に埋め込まれていてもよい。また、切削刃9aは、n個(nは3以上の自然数)の基台91を有する構成であってもよい。この場合、第2の部分93bには、嵌め込み部11と孔部13とがn組設けられる。m個(mは自然数)の切削刃9aが収容部31に収容される場合には、孔部12が底壁31cの周縁に沿って(側壁31bに沿って)m×n箇所に設けられる。   The elastic portion 93 of the cutting blade 9a may be formed by integrally forming the first portion 93a and the second portion 93b. In this case, the cutting blade 9 a has a configuration in which the base 91 is embedded in the elastic portion 93. Further, the elastic portion 93 of the cutting blade 9 a may be embedded in the base portion 3. Moreover, the structure which has the base 91 of n pieces (n is a natural number of 3 or more) may be sufficient as the cutting blade 9a. In this case, n sets of fitting portions 11 and hole portions 13 are provided in the second portion 93b. When m (m is a natural number) cutting blades 9a are accommodated in the accommodating portion 31, the hole portion 12 is provided at m × n locations along the peripheral edge of the bottom wall 31c (along the side wall 31b).

実施形態に係る表層剥し工具の構成を示す図である。It is a figure which shows the structure of the surface peeling tool which concerns on embodiment. 実施形態に係る切削刃の構成を説明するための図である。It is a figure for demonstrating the structure of the cutting blade which concerns on embodiment. 実施形態に係る切削刃の断面図である。It is sectional drawing of the cutting blade which concerns on embodiment. 実施形態に係る表層剥し工具の構成を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the surface peeling tool which concerns on embodiment. 実施形態に係る表層剥し工具の斜視図である。It is a perspective view of the surface layer peeling tool which concerns on embodiment. 実施形態に係る表層剥し工具の側面図である。It is a side view of the surface layer peeling tool which concerns on embodiment. 実施形態に係る表層剥し工具の断面図である。It is sectional drawing of the surface layer peeling tool which concerns on embodiment. 実施形態に係る表層剥し装置の斜視図である。It is a perspective view of the surface peeling apparatus which concerns on embodiment. 実施形態に係る表層剥し装置の断面図である。It is sectional drawing of the surface peeling apparatus which concerns on embodiment. 実施形態に係る他の切削刃の構成を説明するための図である。It is a figure for demonstrating the structure of the other cutting blade which concerns on embodiment. 実施形態に係る他の切削刃の断面図である。It is sectional drawing of the other cutting blade which concerns on embodiment. 実施形態に係る他の切削刃が収容された収容部の平面図である。It is a top view of the accommodating part in which the other cutting blade which concerns on embodiment was accommodated.

符号の説明Explanation of symbols

1…表層剥し工具、3…ベース部、5…駆動軸取り付け部、7,31e,32d…メサ状部、8…刃先部、9…切削刃、9a…切削刃、11…嵌め込み部、12,13,31d,32c…孔部、31…収容部、31a,32a,32b…表面、31c…底壁、31b…側壁、32…蓋部、50…表層剥し装置、51…カバー、53…連結部、55…吸引ホース、57…駆動軸、59…ナット、91…基台、91a…本体部、91c…端部、91d…側面部、91b…頂部、92,93…弾性部、92a,93a…第1の部分、92b,93b…第2の部分。   DESCRIPTION OF SYMBOLS 1 ... Surface peeling tool, 3 ... Base part, 5 ... Drive-shaft attaching part, 7, 31e, 32d ... Mesa-like part, 8 ... Cutting edge part, 9 ... Cutting blade, 9a ... Cutting blade, 11 ... Insertion part, 12, 13, 31d, 32c ... hole, 31 ... housing part, 31a, 32a, 32b ... surface, 31c ... bottom wall, 31b ... side wall, 32 ... lid part, 50 ... surface peeling device, 51 ... cover, 53 ... connecting part 55 ... Suction hose, 57 ... Drive shaft, 59 ... Nut, 91 ... Base, 91a ... Main body part, 91c ... End part, 91d ... Side part, 91b ... Top part, 92, 93 ... Elastic part, 92a, 93a ... 1st part, 92b, 93b ... 2nd part.

Claims (4)

表層剥し工具に用いられる切削刃であって、
刃先となる尖鋭な頂部が形成された棒状の基台と、
前記基台の基端側の端面及び側面を覆う弾性部と
を備える、ことを特徴とする切削刃。
A cutting blade used for a surface peeling tool,
A rod-shaped base formed with a sharp top to be the cutting edge;
A cutting blade comprising: an elastic portion that covers an end surface and a side surface on the base end side of the base.
前記頂部の少なくとも先端は、超砥粒焼結体又は単結晶ダイヤモンドにより構成されている、ことを特徴とする請求項1に記載の切削刃。   The cutting blade according to claim 1, wherein at least a tip of the top is made of a superabrasive sintered body or single crystal diamond. 請求項1又は2のうち何れか一項に記載の切削刃と、
前記切削刃が設けられたベース部と
を備え、
前記切削刃の前記基台は該切削刃の前記弾性部を介して前記ベース部に接続されている、ことを特徴とする表層剥し工具。
The cutting blade according to any one of claims 1 and 2,
A base portion provided with the cutting blade,
The surface peeling tool, wherein the base of the cutting blade is connected to the base portion through the elastic portion of the cutting blade.
前記ベース部は、
前記切削刃の前記弾性部を収容する収容部と、
前記収容部に収容された前記弾性部を該収容部内に押さえ込んで保持する蓋部と
を有し、
前記収容部は、前記切削刃の前記基台を当該収容部から突出させるための孔部が設けられている、ことを特徴とする請求項3に記載の表層剥し工具。
The base portion is
An accommodating portion for accommodating the elastic portion of the cutting blade;
A lid for pressing and holding the elastic part accommodated in the accommodating part into the accommodating part,
The surface layer peeling tool according to claim 3, wherein the housing portion is provided with a hole for projecting the base of the cutting blade from the housing portion.
JP2006023714A 2006-01-31 2006-01-31 Cutting blade and tool for peeling off surface layer Pending JP2007203397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006023714A JP2007203397A (en) 2006-01-31 2006-01-31 Cutting blade and tool for peeling off surface layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006023714A JP2007203397A (en) 2006-01-31 2006-01-31 Cutting blade and tool for peeling off surface layer

Publications (1)

Publication Number Publication Date
JP2007203397A true JP2007203397A (en) 2007-08-16

Family

ID=38483308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006023714A Pending JP2007203397A (en) 2006-01-31 2006-01-31 Cutting blade and tool for peeling off surface layer

Country Status (1)

Country Link
JP (1) JP2007203397A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101558483B1 (en) * 2014-02-12 2015-10-07 김현태 A Grinding wheel structure for grinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101558483B1 (en) * 2014-02-12 2015-10-07 김현태 A Grinding wheel structure for grinder

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