JP4261484B2 - Rotating abrasive - Google Patents

Rotating abrasive Download PDF

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JP4261484B2
JP4261484B2 JP2004553146A JP2004553146A JP4261484B2 JP 4261484 B2 JP4261484 B2 JP 4261484B2 JP 2004553146 A JP2004553146 A JP 2004553146A JP 2004553146 A JP2004553146 A JP 2004553146A JP 4261484 B2 JP4261484 B2 JP 4261484B2
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abrasive
substrate
rotating
protrusion
sheet
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JPWO2004045805A1 (en
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勇 柳瀬
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柳瀬株式会社
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/18—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor with cooling provisions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/20—Mountings for the wheels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

本願発明は、回転工具に装着して用いる回転研磨材に関するものである。   The present invention relates to a rotating abrasive used by being mounted on a rotating tool.

従来より、グラインダー等の回転工具の回転軸に装着し、回転させることによって、研磨対象物を研磨することができる、円盤状物体である回転研磨材が用いられている。例えばディスクグラインダー用や、バフ研磨用のディスクである。   2. Description of the Related Art Conventionally, a rotating abrasive that is a disk-like object that can polish an object to be polished by being mounted on a rotating shaft of a rotating tool such as a grinder and rotating has been used. For example, it is a disk for a disk grinder or a buffing disk.

また、日本国における特開平９−１７４４４４号公報に記載の「研磨ディスク」のように、円盤状の基板の表面に、サンドペーパー等の研磨シートを放射状に配列したタイプの回転研磨材が知られている。   In addition, a rotary abrasive of a type in which abrasive sheets such as sandpaper are radially arranged on the surface of a disk-like substrate is known, as in “Abrasive disk” described in Japanese Patent Application Laid-Open No. 9-174444 in Japan. ing.

このタイプの回転研磨材にあっては、使用に伴い研磨対象物と研磨シートとの間に摩擦熱が発生し、この摩擦熱によって、研磨シートの劣化や研磨対象物の変質が発生する恐れがあった。   In this type of rotary abrasive, frictional heat is generated between the object to be polished and the polishing sheet with use, and this frictional heat may cause deterioration of the polishing sheet and alteration of the object to be polished. there were.

また、回転研磨材を用いる際においては、荒削りを行なうための、荒目のサンドペーパーを備えた回転研磨材と、仕上げを行なうための、細目のサンドペーパーを備えた回転研磨材とを使い分けていたが、その際、回転工具に回転研磨材をいちいち付け替えたり、異なる回転研磨材を取り付けた回転工具を別々に用意していた。   In addition, when using a rotating abrasive, a rotating abrasive with a rough sandpaper for roughing is used separately from a rotating abrasive with a fine sandpaper for finishing. However, at that time, rotating tools with different rotating abrasives were attached to the rotating tools, or rotating tools with different rotating abrasives were prepared separately.

よって上記の問題に鑑み、本願発明は、研磨対象物と研磨シートとの間に発生する摩擦熱を除去できる、回転研磨材を提供することを第１の課題とする。   Therefore, in view of the above problems, a first object of the present invention is to provide a rotating abrasive capable of removing frictional heat generated between an object to be polished and a polishing sheet.

また、回転研磨材自体を取り替えることなく、例えば、荒目の研磨シートと細目の研磨シートを切り換えて用いることができる、回転研磨材を提供することを第２の課題とする。   It is a second object to provide a rotating abrasive that can be used by switching between a coarse abrasive sheet and a fine abrasive sheet without replacing the rotating abrasive itself.

上記の課題を解決するために、本願の請求項１に係る発明は、研磨シート１４が表面に配列された円盤状物体であり、これを回転工具Ｇに取り付けることにより、対象物を研磨することができる回転研磨材１０において、この回転研磨材１０は、基板１１と突出部１２とを備え、基板１１は、平面視が円盤状であって、その中心を回転工具Ｇの回転軸Ｓに取り付け可能なものであり、突出部１２は、基板１１の径外方向に突出するように複数設けられたものであって、各々の突出部１２は、基端が基板１１と一体とされており、先端が外周部１２ｃとされており、上記研磨シート１４が取り付けられた表面とその逆側の面である裏面とを有し、そして、回転研磨材１０の回転方向Ｒを基準とした前端側端面１２ａと後端側端面１２ｂとを有しており、上記複数の突出部１２同士の間は、回転研磨材１０の裏面側から表面側へと貫通する空間である空気導入部１５とされており、上記突出部１２には、整流板１７と斜面１９とが形成されており、上記整流板１７は、上記突出部１２の裏面側の略周方向に沿って突出するものであり、上記斜面１９は、上記突出部１２の径方向における先端部分のうち裏面側に、前端側端面１２ａの寸法を絞るように形成されたものであることを特徴とする回転研磨材を提供する。 In order to solve the above-described problem, the invention according to claim 1 of the present application is a disc-like object in which the polishing sheet 14 is arranged on the surface, and the object is polished by attaching it to the rotary tool G. The rotary abrasive 10 includes a substrate 11 and a protrusion 12, and the substrate 11 has a disk shape in plan view, and its center is attached to the rotation axis S of the rotary tool G. are those capable of protrusions 12 is not limited for its plurality so as to protrude radially outward direction of the substrate 11, each protrusion 12 of the proximal end are integral with the substrate 11, The front end has an outer peripheral portion 12c, and has a front surface on which the polishing sheet 14 is attached and a back surface on the opposite side, and a front end side end surface based on the rotational direction R of the rotating abrasive 10 12a and rear end side end face 12b The space between the plurality of protrusions 12 is an air introduction part 15 that is a space penetrating from the back surface side to the front surface side of the rotary abrasive 10. The rectifying plate 17 protrudes along a substantially circumferential direction on the back surface side of the protruding portion 12, and the inclined surface 19 is a tip portion in the radial direction of the protruding portion 12. The rotating abrasive is characterized in that it is formed on the back side so as to reduce the size of the front end side end face 12a .

また、本願の請求項２に係る発明は、上記突出部１２の前端側端面１２ａのうち裏面側に、回転研磨材１０の回転方向Ｒにおける前側へ突出するように空気導入用突起１８が形成されたことを特徴とする、請求項１に記載の回転研磨材を提供する。 Further, in the invention according to claim 2 of the present application , the air introduction protrusion 18 is formed on the back surface side of the front end side end surface 12a of the protruding portion 12 so as to protrude to the front side in the rotation direction R of the rotating abrasive 10. The rotating abrasive according to claim 1 is provided.

また、本願の請求項３に係る発明は、上記の各突出部１２の外周部１２ｃ同士を連結するようにして外周連結部１６が形成されたことにより、上記空気導入部１５が、基板１１と突出部１２と外周連結部１６とにより囲まれたものであることを特徴とする、請求項１または２に記載の回転研磨材を提供する。 The invention according to claim 3 of the present application, by the outer peripheral coupling portion 16 so as to connect the outer peripheral portion 12c between the above each protrusion 12 is formed, the air introducing portion 15, the substrate 11 The rotating abrasive according to claim 1 , wherein the rotating abrasive is surrounded by the protruding portion 12 and the outer peripheral connecting portion 16.

また、本願の請求項４に係る発明は、研磨シート１４，２３が表面に配列された円盤状物体であり、これを回転工具Ｇに取り付けることにより、対象物を研磨することができる回転研磨材１０において、 この回転研磨材１０が第１部材１と第２部材２と取付位置調整手段２５とからなるものであり、第１部材１として、請求項１または２に記載の回転研磨材が用いられたものであり、
上記の空気導入部１５は、第２部材２の研磨シート２３を受容する研磨シート挿入空間として作用し、第２部材２は基板２１を備え、基板２１は、平面視が円盤状であって、その中心を回転工具Ｇの回転軸Ｓに取り付け可能なものであり、研磨シート２３が、基板２１の一方側の表面であり、かつ、平面視において、第１部材１の上記研磨シート挿入空間１５に相当する位置に配位されたものであり、取付位置調整手段２５は、第１部材１と第２部材２を組み合わせた際に、軸方向の位置関係を調整するための手段であり、第１部材１と第２部材２を、各基板１１，２１の中心を一致させるように組み合わせることにより、第１部材１の研磨シート１４と第２部材２の研磨シート２３とが交互に配位されるものであり、
第１部材１に対して、第２部材２の研磨シート２３が出没可能とされたものであることを特徴とする回転研磨材を提供する。 The invention according to claim 4 of the present application is a disc-like object having abrasive sheets 14 and 23 arranged on the surface, and a rotating abrasive that can polish an object by attaching it to the rotating tool G. 10, the rotary abrasive 10 includes the first member 1, the second member 2, and the attachment position adjusting means 25, and the rotary abrasive according to claim 1 or 2 is used as the first member 1. And
The air introduction part 15 acts as a polishing sheet insertion space for receiving the polishing sheet 23 of the second member 2 , the second member 2 includes a substrate 21, and the substrate 21 has a disk shape in plan view, are those that can be attached to the center on the rotation axis S of the rotary tool G, the abrasive sheet 23 is a surface of one side of the substrate 21, and, in plan view, the abrasive sheet insertion space 15 of the first member 1 The mounting position adjusting means 25 is a means for adjusting the positional relationship in the axial direction when the first member 1 and the second member 2 are combined. By combining the first member 1 and the second member 2 so that the centers of the substrates 11 and 21 coincide with each other, the polishing sheet 14 of the first member 1 and the polishing sheet 23 of the second member 2 are alternately arranged. And
A rotating abrasive is provided in which the abrasive sheet 23 of the second member 2 can be projected and retracted with respect to the first member 1.

また、本願の請求項５に係る発明は、研磨シート１４，２３が、回転研磨材１０の回転方向に対して傾斜して配位されたことを特徴とする、請求項１〜４のいずれかに記載の回転研磨材を提供する。 The invention according to claim 5 of the present application, the abrasive sheet 14, 23 is inclined to be characterized in that it is coordinated with respect to the rotational direction of the rotating abrasive 10, any one of claims 1 to 4 The rotating abrasive described in 1.

まず、図面に基づき、本願発明の実施のうちの第１実施例に係る回転研磨材を取り上げて説明する。図１は、本実施例の回転研磨材の回転工具への取り付け方法を示す斜視図であり、図２及び図３は、本実施例の回転研磨材を示す斜視図である。なお、本願発明の説明においては、回転研磨材（第１部材、第２部材なども含む）の研磨シートが設けられた側を表側、逆側を裏側とする。   First, the rotary abrasive according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a method of attaching the rotary abrasive material of this embodiment to a rotary tool, and FIGS. 2 and 3 are perspective views showing the rotary abrasive material of this embodiment. In the description of the present invention, the side on which the abrasive sheet of the rotating abrasive (including the first member and the second member) is provided is the front side, and the opposite side is the back side.

本実施例に係る回転研磨材１０は、図１に示すように、グラインダー等の回転工具Ｇの回転軸Ｓに取り付けて用いるものである。この回転研磨材１０の基本的な構成は、従来の回転研磨材と同様であり、回転工具Ｇの回転軸Ｓから動力を伝達されて回転する基板の表面に、サンドペーパー等の研磨シートを取り付けた円盤状物体である。   As shown in FIG. 1, the rotating abrasive 10 according to the present embodiment is used by being attached to a rotating shaft S of a rotating tool G such as a grinder. The basic configuration of the rotary abrasive 10 is the same as that of the conventional rotary abrasive, and an abrasive sheet such as sandpaper is attached to the surface of the substrate that is rotated by the power transmitted from the rotary shaft S of the rotary tool G. A disk-shaped object.

回転研磨材１０の、回転工具Ｇに対する取り付けは、回転工具Ｇの回転軸Ｓを、回転研磨材１０の中心（本実施例においては、連結部材２５の中心）に設けられた挿通穴２５ｋに通し、固定ナットＮを回転軸Ｓにねじ込むことによってなされる。   The rotary abrasive 10 is attached to the rotary tool G by passing the rotation axis S of the rotary tool G through an insertion hole 25k provided at the center of the rotary abrasive 10 (in the present embodiment, the center of the connecting member 25). The fixing nut N is screwed onto the rotating shaft S.

本実施例における回転研磨材１０の外観は、図２，図３に示すようなものであり、これは、２種の部材１，２を、図４に示すように軸方向（回転軸Ｓの方向）に組み合わせて一体としたものである。以下に、この部材の各々を第１部材１、第２部材２と称して説明する。   The external appearance of the rotating abrasive 10 in this embodiment is as shown in FIGS. 2 and 3, and this is because the two types of members 1 and 2 are axially (rotating shaft S) as shown in FIG. Direction). Hereinafter, each of the members will be referred to as a first member 1 and a second member 2 for explanation.

第１部材１には、図４や図７に示すように、合成樹脂製の基板１１と突出部１２とが設けられている。   As shown in FIGS. 4 and 7, the first member 1 is provided with a synthetic resin substrate 11 and a protruding portion 12.

基板１１は、本実施例においては、外観が円環状のものである。この基板１１の中央部分には、連結部材２５を受容するための嵌合穴１３が設けられている。なお、この嵌合穴１３に取り付けられる連結部材２５は、回転工具Ｇの回転軸Ｓに取り付けられ、回転工具Ｇの動力を第１部材１へと伝達するものである。   In the present embodiment, the substrate 11 has an annular appearance. A fitting hole 13 for receiving the connecting member 25 is provided in the central portion of the substrate 11. The connecting member 25 attached to the fitting hole 13 is attached to the rotary shaft S of the rotary tool G, and transmits the power of the rotary tool G to the first member 1.

そして、研磨シート取付部としての突出部１２が基板１１の径外方向に、基板１１と一体に設けられ、その一方側の面（表面、図４における下側方向）に研磨シート１４が接着されている。   And the protrusion part 12 as a polishing sheet attachment part is integrally provided with the board | substrate 11 in the radial direction of the board | substrate 11, and the polishing sheet 14 is adhere | attached on the surface of one side (surface, the lower direction in FIG. 4). ing.

突出部１２同士の間は空間となっているが、この空間が空気導入部１５であり、また、研磨シート挿入空間１５ともなる。なお、この空間は、第１部材１の使用方法によって、空気導入部１５と、研磨シート挿入空間１５という、異なる作用を奏するものであり、以下においては、作用によって名称を使い分けるものとする。   Although a space is formed between the protrusions 12, this space is the air introduction portion 15 and also becomes the polishing sheet insertion space 15. Note that this space has different effects of the air introduction portion 15 and the polishing sheet insertion space 15 depending on how the first member 1 is used.

突出部１２に接着される研磨シート１４は、サンドペーパーのように、紙や布等からなるシートの一方の面にダイヤモンド粒等の砥粒を塗布したものである。   The abrasive sheet 14 adhered to the protruding portion 12 is obtained by applying abrasive grains such as diamond grains on one surface of a sheet made of paper, cloth, or the like, like sandpaper.

本実施例においては、この研磨シート１４を長方形にカットしたものを、突出部１２に対して、砥粒の塗布された面が表側となるように、各研磨シート１４の一部が周方向に重なり合うように配列し、接着剤等によって固定する。上記のようにして各研磨シート１４が突出部１２の表面上に配列されるため、図８（Ａ）に示すように、研磨シート１４は第１部材１の回転方向Ｒに対して図示下後方に傾斜している。   In the present embodiment, a part of each polishing sheet 14 is circumferentially arranged such that the abrasive sheet 14 is cut into a rectangular shape with respect to the protrusion 12 so that the surface coated with the abrasive grains is on the front side. Arrange them so that they overlap, and fix them with an adhesive. Since the respective polishing sheets 14 are arranged on the surface of the protruding portion 12 as described above, the polishing sheet 14 is shown in the lower rear direction with respect to the rotation direction R of the first member 1 as shown in FIG. It is inclined to.

また、突出部１２は側面視において、基板１１に対して角度を持って形成されている。具体的には、図８（Ａ）に示すように、第１部材１の回転方向Ｒに従い、図示上方に向かい傾斜するように形成したものである。また、回転方向Ｒにおける前端側端面１２ａと後端側端面１２ｂには面取りがなされており、加えて、研磨シート１４も傾斜して配列されているため、空気導入部１５は回転方向Ｒに対して、突起物の無い、スムーズに傾斜した空間となっている。   Further, the protrusion 12 is formed with an angle with respect to the substrate 11 in a side view. Specifically, as shown in FIG. 8A, the first member 1 is formed so as to incline upward in the drawing according to the rotation direction R of the first member 1. Further, the front end side end surface 12a and the rear end side end surface 12b in the rotation direction R are chamfered, and in addition, since the polishing sheet 14 is also inclined and arranged, the air introduction portion 15 is arranged with respect to the rotation direction R. It is a smoothly inclined space with no protrusions.

このような空気導入部１５の形状により、第１部材１を単独で回転工具Ｇに取り付けて使用する場合にあっては、第１部材１の回転に伴って、この突出部１２が空気導入部１５に存在する空気を、第１部材の裏側から表側への一方向（図８（Ａ）に示す下方）に誘導する。そして、このように誘導された気流Ｆは空気導入部１５を通り抜ける。そのため、第１部材１が回転している場合、この気流Ｆが常時発生し、研磨対象物と研磨シート１４との間で発生した摩擦熱をこの気流Ｆが運び去るため、従来のように、摩擦熱の蓄積によって発生する、研磨シート１４の劣化や研磨対象物の変質等の弊害をなくすことができる。また、この気流Ｆによって、研磨により発生する切粉を排除することもできる。   Due to the shape of the air introduction part 15, when the first member 1 is used alone attached to the rotary tool G, the protrusion 12 becomes the air introduction part as the first member 1 rotates. The air which exists in 15 is induced | guided | derived to the one direction (downward shown to FIG. 8 (A)) from the back side of the 1st member to the front side. Then, the air flow F thus induced passes through the air introduction part 15. Therefore, when the first member 1 is rotating, this air flow F is always generated, and since the air flow F carries away the frictional heat generated between the object to be polished and the polishing sheet 14, Defects such as deterioration of the polishing sheet 14 and alteration of the object to be polished, which are caused by the accumulation of frictional heat, can be eliminated. Further, the air flow F can eliminate chips generated by polishing.

ここで、上記の作用に関して、出願人が１０cm角の鋼板を３分間研磨する実験を同一条件にて行なったところ、従来の回転研磨材を用いた場合では鋼板の表面温度が８０℃まで上昇したのに対し、本実施例の第１部材１を用いた場合では６０℃までしか上昇しなかった。よって、上記の気流Ｆによる冷却作用が有効に作用していることが確認できた。   Here, with respect to the above action, when the applicant conducted an experiment for polishing a 10 cm square steel plate for 3 minutes under the same conditions, the surface temperature of the steel plate increased to 80 ° C. when a conventional rotary abrasive was used. On the other hand, in the case of using the first member 1 of the present example, the temperature increased only to 60 ° C. Therefore, it has been confirmed that the cooling action by the air flow F is effective.

なお、突出部１２については、上記のような空気を誘導する効果は弱くなるものの、構造を簡単にするために、図８（Ｂ）に示すように、基板１１に対して平行に形成するものとしても良いし、図８（Ｃ）に示すように、表面が水平な、側面視三角形に形成しても良い。   The protrusion 12 is formed in parallel to the substrate 11 as shown in FIG. 8B in order to simplify the structure, although the effect of inducing air as described above is weakened. Alternatively, as shown in FIG. 8C, the surface may be formed in a triangular shape in a side view.

上記に加えて、突出部１２の平面視における形状は、図７に示すように、前端側端面１２ａが径方向であり、後端側端面１２ｂが、径外方向に向かうにつれ回転方向Ｒの後側に向かうように傾斜して形成されている。突出部１２の、上記に説明したような、側面視における傾きと、このような平面視における形状により、突出部１２がファンにおける羽根のような作用をし、空気導入部１５に存在する空気を効率良く誘導し、気流Ｆを発生させることができる。   In addition to the above, the shape of the protrusion 12 in plan view is such that, as shown in FIG. 7, the front end side end surface 12a is in the radial direction, and the rear end side end surface 12b is rearward in the rotational direction R as it goes radially outward. It is formed so as to be inclined toward the side. Due to the inclination of the protrusion 12 in the side view as described above and the shape in such a plan view, the protrusion 12 acts like a blade in the fan, and the air present in the air introduction part 15 is removed. The airflow F can be generated efficiently.

また、図９に示すように、突出部１２の裏面側の略周方向に沿って突出するような整流板１７と、前端側端面１２ａの裏面側（図９（Ｂ）上の上側）に、回転方向Ｒにおける前側に突出するように空気導入用突起１８とを形成した場合は、空気導入部１５に対して、更に空気を効率良く誘導し、気流Ｆを発生させることができる。   Moreover, as shown in FIG. 9, on the back surface side (upper side in FIG. 9 (B)) of the rectifying plate 17 that protrudes along the substantially circumferential direction on the back surface side of the protruding portion 12 and the front end side end surface 12a, When the air introduction protrusion 18 is formed so as to protrude to the front side in the rotation direction R, the air can be efficiently guided to the air introduction portion 15 to generate the air flow F.

また、図１０に示すように、上記の整流板１７と、突出部１２の径方向における先端部分に斜面１９とを形成し、前端側端面１２ａの寸法を絞ることにより、第１部材１の回転抵抗を減少させて、より効率良く気流Ｆを発生させることができる。   Further, as shown in FIG. 10, the rotation of the first member 1 is achieved by forming the rectifying plate 17 and the slope 19 at the distal end portion in the radial direction of the projecting portion 12, and reducing the size of the front end side end surface 12 a. Resistance can be reduced and the airflow F can be generated more efficiently.

また、図７に点線で示したように、各突出部１２の外周部１２ｃ同士を連結するようにして外周連結部１６を形成し、空気導入部１５が、基板１１と突出部１２と外周連結部１６とにより囲まれたものとしても良い。更には、後述する第２実施例（図１１，図１２参照）のように、図７における基板１１と突出部１２と外周連結部１６とを一体とした形態の基板１１を形成し、この基板１１に貫通穴状の空気導入部１５を設けたものとしても良い。なお、この場合、第１実施例における基板１１は、第２実施例における基板１１の中央部分１１ｘに相当し、第１実施例における突出部１２は、第２実施例における基板１１の周囲部分１１ｙに相当する。   Further, as shown by a dotted line in FIG. 7, the outer peripheral connecting portion 16 is formed so as to connect the outer peripheral portions 12 c of the protruding portions 12, and the air introducing portion 15 is connected to the substrate 11, the protruding portion 12 and the outer peripheral connection. It may be surrounded by the part 16. Further, as in a second embodiment described later (see FIGS. 11 and 12), the substrate 11 in the form in which the substrate 11, the projecting portion 12, and the outer peripheral coupling portion 16 in FIG. 11 may be provided with a through-hole-shaped air introduction portion 15. In this case, the substrate 11 in the first embodiment corresponds to the central portion 11x of the substrate 11 in the second embodiment, and the protruding portion 12 in the first embodiment is a peripheral portion 11y of the substrate 11 in the second embodiment. It corresponds to.

ここまでは、第１部材１を単独で回転工具Ｇに取り付けて使用する場合について説明したが、以下に、第１部材１と第２部材２とを組み合わせて使用する場合を説明する。   Up to this point, the case where the first member 1 is used alone attached to the rotary tool G has been described. However, the case where the first member 1 and the second member 2 are used in combination will be described below.

なお、本実施例においては、第１部材１を単独で回転工具Ｇに取り付けて使用する場合においても、第１部材１と第２部材２とを組み合わせて使用する場合においても、連結部材２５を必ず使用するものであり、この連結部材２５を介して、回転工具Ｇの動力を各部材１，２に伝達する。なお、この連結部材２５の形状や機能についての詳細は、後に述べる。   In the present embodiment, even when the first member 1 is used alone attached to the rotary tool G, or when the first member 1 and the second member 2 are used in combination, the connecting member 25 is used. The power of the rotary tool G is transmitted to the members 1 and 2 through the connecting member 25. Details of the shape and function of the connecting member 25 will be described later.

第２部材２の基本的な形態は、第１部材１と同様であるが、こちらは、図４に示すように、基板２１が平板状に形成される。   The basic form of the second member 2 is the same as that of the first member 1, but here, as shown in FIG. 4, the substrate 21 is formed in a flat plate shape.

基板２１の中央部には、第１部材１の場合と同様、連結部材２５を受容するための嵌合穴２２が設けられている。   As in the case of the first member 1, a fitting hole 22 for receiving the connecting member 25 is provided in the central portion of the substrate 21.

また、平面視において、第１部材１の突出部１２同士の間の空間である、研磨シート挿入空間１５に相当する位置には、基板２１に対して、第１部材１における研磨シート１４と同様の傾斜を持って研磨シート２３が配列されている。本実施例においては、基板２１に径方向に形成された切欠に研磨シート２３の端部を挟んだ上で接着剤等によって固定している。   Further, in a plan view, at a position corresponding to the polishing sheet insertion space 15 that is a space between the protrusions 12 of the first member 1, the substrate 21 is the same as the polishing sheet 14 in the first member 1. The polishing sheets 23 are arranged with an inclination of. In this embodiment, the end portion of the polishing sheet 23 is sandwiched between notches formed in the radial direction on the substrate 21 and then fixed with an adhesive or the like.

なお、本実施例においては、第１部材１に用いる研磨シート１４よりも、第２部材２に用いる研磨シート２３の方が細かい砥粒を用いた、いわゆる細目の研磨シートとしている。ただし、各研磨シート１４，２３の組み合せは、これに限られるものではなく、上記と逆に、第２部材２に対して荒目の研磨シートを用いたものであっても良い。もちろん、同一の荒さの研磨シートを用いたものであっても良い。   In this embodiment, the polishing sheet 23 used for the second member 2 is a so-called fine polishing sheet using finer abrasive grains than the polishing sheet 14 used for the first member 1. However, the combination of the respective polishing sheets 14 and 23 is not limited to this, and conversely, a coarse polishing sheet may be used for the second member 2. Of course, a polishing sheet having the same roughness may be used.

そして、基板２１の嵌合穴２２には、取付位置調整手段である連結部材２５が取り付けられる。   Then, a connecting member 25 that is an attachment position adjusting means is attached to the fitting hole 22 of the substrate 21.

連結部材２５は、図４，図５に示すように円筒状のものであって、内部には回転工具Ｇの回転軸Ｓを通すための挿通穴２５ｋが、軸方向に設けられている。また、外側面には鍔状の突起２５ａ，２５ｄ，２５ｇ，２５ｍが設けられている。なお、突起２５ａ，２５ｄ，２５ｇについては、連結部材２５の周方向の全周にわたって設けられてはおらず、基板２１と第１部材１の基板１１とを取り付けるために、一部が切欠部２５ｂ，２５ｅ，２５ｈとして切り欠かれている。そして、切欠部２５ｂ，２５ｅ，２５ｈは図５（Ａ）（Ｃ）に示すように、点対称の位置に形成されている。   As shown in FIGS. 4 and 5, the connecting member 25 has a cylindrical shape, and an insertion hole 25 k for passing the rotation shaft S of the rotary tool G is provided in the axial direction. In addition, hook-like protrusions 25a, 25d, 25g, and 25m are provided on the outer surface. Note that the protrusions 25a, 25d, and 25g are not provided over the entire circumference in the circumferential direction of the connecting member 25, and in order to attach the substrate 21 and the substrate 11 of the first member 1, some of the protrusions 25a, 25d, and 25g It is cut out as 25e, 25h. The notches 25b, 25e, and 25h are formed at point-symmetric positions as shown in FIGS.

この突起２５ａ，２５ｄ，２５ｇ，２５ｍの間に形成される係合溝２５ｃ，２５ｆ，２５ｉに各基板１１，２１を配位することによって、連結部材２５と第２部材２及び第１部材１との連結がそれぞれなされる。また、連結部材２５の突起２５ａ，２５ｄ，２５ｇの一方側終端部には、係合溝２５ｃ，２５ｆ，２５ｉを塞ぐようにしてストッパー２５ｐ，２５ｑ，２５ｒが設けられている。   By arranging the substrates 11 and 21 in the engagement grooves 25c, 25f, and 25i formed between the protrusions 25a, 25d, 25g, and 25m, the connection member 25, the second member 2, and the first member 1 Are connected to each other. Further, stoppers 25p, 25q, and 25r are provided at one end portions of the protrusions 25a, 25d, and 25g of the connecting member 25 so as to close the engaging grooves 25c, 25f, and 25i.

ここで、連結部材２５と第１部材１との取り付けについては、連結部材２５の側面に形成した嵌合溝２５ｆに第１部材１の基板１１を配位することによりなされる。   Here, the attachment of the connecting member 25 and the first member 1 is performed by positioning the substrate 11 of the first member 1 in the fitting groove 25 f formed on the side surface of the connecting member 25.

具体的には、基板１１から嵌合穴１３に突出した突起１１ａを、連結部材２５の側面の突起２５ｄを切り欠くようにして形成した切欠部２５ｅに通すことによって嵌合溝２５ｆに配位させ、その後、突起１１ａがストッパー２５ｒに当接するまで、基板１１を連結部材２５に対してねじり、固定する。   Specifically, the protrusion 11a protruding from the board 11 into the fitting hole 13 is passed through the notch 25e formed so as to cut out the protrusion 25d on the side surface of the connecting member 25, thereby being coordinated with the fitting groove 25f. Thereafter, the substrate 11 is twisted and fixed to the connecting member 25 until the protrusion 11a contacts the stopper 25r.

一方、連結部材２５と第２部材２との取り付けについても、基本的には上記の第１部材１の場合と同様であるが、この場合においては、第２部材２を連結部材２５の端面側（図５（Ｂ）にて上方側の端面）を基準として、手前側と奥側の２段階に、軸方向の取付位置を変更できるようになっている。第２部材２を手前側に配位する際には、連結部材２５に形成された、突起２５ａ，切欠部２５ｂ，手前側嵌合溝２５ｃ，ストッパー２５ｐが、また、奥側に配位する際には、連結部材２５に形成された、突起２５ｇ，切欠部２５ｈ，奥側嵌合溝２５ｉ，ストッパー２５ｑがそれぞれ機能する。   On the other hand, the attachment of the connecting member 25 and the second member 2 is basically the same as in the case of the first member 1 described above. In this case, the second member 2 is connected to the end face side of the connecting member 25. With reference to (the upper end face in FIG. 5B), the mounting position in the axial direction can be changed in two steps, the front side and the back side. When the second member 2 is positioned on the near side, the protrusion 25a, the notch 25b, the near side fitting groove 25c, and the stopper 25p formed on the connecting member 25 are also positioned on the far side. The projection 25g, the notch 25h, the back side fitting groove 25i, and the stopper 25q formed on the connecting member 25 function respectively.

具体的には、基板２１から嵌合穴２２に突出した突起２１ａを、連結部材２５の側面の突起２５ａを切り欠くようにして形成した切欠部２５ｂに通すことによって手前側嵌合溝２５ｃに配位させ、その後、突起２１ａがストッパー２５ｐに当接するまで、基板２１を連結部材２５に対してねじり、第２部材２を手前側に固定する。   Specifically, the protrusion 21a protruding from the board 21 into the fitting hole 22 is passed through a notch 25b formed so as to cut out the protrusion 25a on the side surface of the connecting member 25, thereby being arranged in the front fitting groove 25c. Then, until the protrusion 21a contacts the stopper 25p, the substrate 21 is twisted with respect to the connecting member 25, and the second member 2 is fixed to the near side.

また、同様に突起２５ｇを切り欠くようにして形成した切欠部２５ｈに通すことによって奥側嵌合溝２５ｉに配位させ、その後、突起２１ａがストッパー２５ｑに当接するまで、基板２１を連結部材２５に対してねじり、第２部材２を奥側に固定する。   Similarly, the substrate 21 is connected to the connecting member 25 until the protrusion 21a contacts the stopper 25q after passing through a notch 25h formed so as to cut out the protrusion 25g and then being positioned in the rear fitting groove 25i. The second member 2 is fixed to the back side.

ここで、それぞれの切欠部２５ｂ，２５ｈは平面視において、所定角度ずらせて形成したものである。よって、第１部材１を手前側嵌合溝２５ｃに配位した状態から移動させ、奥側嵌合溝２５ｉに配位させる際には、第２部材２の突起２１ａを、切欠部２５ｈに一致させるように周方向にねじるだけで良く、特殊な動作は一切不要である。   Here, the respective cutout portions 25b and 25h are formed by shifting by a predetermined angle in plan view. Therefore, when the first member 1 is moved from the state where it is coordinated in the front side fitting groove 25c and is coordinated in the back side fitting groove 25i, the protrusion 21a of the second member 2 is aligned with the notch 25h. It is only necessary to twist in the circumferential direction so that no special action is required.

連結部材２５と、各部材１，２との間には、脱落防止手段が設けられている。ここで、第１部材１の基板１１を連結部材２５の嵌合溝２５ｆに配位する場合を例にあげて説明する。   A drop prevention means is provided between the connecting member 25 and the members 1 and 2. Here, the case where the board | substrate 11 of the 1st member 1 is coordinated to the fitting groove 25f of the connection member 25 is mentioned as an example, and is demonstrated.

第１部材１の基板１１には、連結部材２５の切欠部２５ｅに対応する突起１１ａが、嵌合穴１３に突出するように形成されており、そして、この突起１１ａの略中間部には係止用切欠部１１ｂが形成されている。他方、連結部材２５においても、この係止用切欠部１１ｂに対応する位置に係止用突出部２５ｎが形成されている。   A protrusion 11a corresponding to the notch 25e of the connecting member 25 is formed on the substrate 11 of the first member 1 so as to protrude into the fitting hole 13, and a substantially intermediate portion of the protrusion 11a is engaged with the protrusion 11a. A stop notch portion 11b is formed. On the other hand, also in the connecting member 25, a locking projection 25n is formed at a position corresponding to the locking notch 11b.

この係止用突起部２５ｎが脱落防止手段となり、これにより第１部材１が軸方向に脱落することを防止できる。   This locking projection 25n serves as a drop-off preventing means, whereby the first member 1 can be prevented from dropping off in the axial direction.

すなわち、図６（Ａ）に示すように、第１部材１を連結部材２５に係合させるときは、第１部材１の係止用切欠部１１ｂを、連結部材２５の係止用突起部２５ｎの位置に合致させて、突起１１ａを突起２５ｍに当接させた状態で、図６（Ａ）中の矢印Ｆ方向に回転させつつ、係合溝２５ｆの終端であるストッパー２５ｒに当接するまで嵌め込んでいき、第１部材１と連結部材２５とを係合させることができる。   That is, as shown in FIG. 6A, when the first member 1 is engaged with the connecting member 25, the locking notch 11 b of the first member 1 is connected to the locking protrusion 25 n of the connecting member 25. In the state in which the protrusion 11a is in contact with the protrusion 25m in a state where the protrusion 11a is in contact with the position of the protrusion 25a, while rotating in the direction of arrow F in FIG. The first member 1 and the connecting member 25 can be engaged with each other.

上記のように、第１部材１を連結部材２５に係合させ、連結部材２５を回転工具Ｇに取り付けて研磨作業を行なうのであるが、例えば、研磨作業中に第１部材１が研磨対象物に接触した状態で電源が切られる等して、回転工具Ｇが急に停止した場合、図６（Ｂ）に示すように、第１部材１のみが相対的に、元々動作していた矢印Ｓの方向に慣性の法則に従って回転する。これにより、第１部材１のみが、連結部材２５との係合が解除する方向（矢印Ｓの方向）に回動する。このようにして、突起１１ａが元々当接していた一方のストッパー２５ｒから離れ、他方のストッパー２５ｒに衝突して、その回転が停止する。   As described above, the first member 1 is engaged with the connecting member 25 and the connecting member 25 is attached to the rotary tool G to perform the polishing operation. For example, during the polishing operation, the first member 1 is subject to polishing. When the rotary tool G stops suddenly, for example, when the power is turned off in a state of being in contact with, as shown in FIG. 6 (B), only the first member 1 is relatively moved and the arrow S was originally operating. Rotate according to the law of inertia in the direction of. Thereby, only the 1st member 1 rotates in the direction (direction of arrow S) which engagement with the connection member 25 is cancelled | released. In this way, the protrusion 11a is separated from the one stopper 25r with which the protrusion 11a was originally in contact, collides with the other stopper 25r, and the rotation stops.

この図６（Ｂ）に示した状態において、第１部材１の係止用切欠部１１ｂと、連結部材２５の係止用突起部２５ｎとの位置が少しずれた状態となるように、あらかじめぞれぞれの位置を設定しておく。この位置関係により係止用突起部２５ｎが脱落防止手段としての機能を果たす。   In the state shown in FIG. 6B, the positions of the locking notch 11b of the first member 1 and the locking protrusion 25n of the connecting member 25 are slightly shifted in advance. Set each position. Due to this positional relationship, the locking projection 25n functions as a drop-off preventing means.

また、図６（Ａ）に示すように、第１部材１と連結部材２５とを係合する場合には、これらの係止用切欠部１１ｂと係止用突起部２５ｎとを合致させて係合することができるように、両者の位置をあらかじめ設定しておく。   Further, as shown in FIG. 6A, when the first member 1 and the connecting member 25 are engaged, the engaging notch portion 11b and the engaging protrusion 25n are brought into alignment with each other. Both positions are set in advance so that they can be matched.

なお、上記においては、第１部材１の場合を例にあげて説明したが、第２部材２についても同様であって、これにより、第１部材１と第２部材２とを同時に連結部材２５に取り付けた場合であっても、上記と同様の作用をなすものである。   In the above description, the case of the first member 1 has been described as an example, but the same applies to the second member 2, whereby the first member 1 and the second member 2 are simultaneously connected to the connecting member 25. Even if it is attached to, the same effect as described above is achieved.

上記に説明したように、連結部材２５の側面に形成された、２箇所の嵌合溝２５ｃ，２５ｉのうちいずれかの嵌合溝を選択して、第１部材２の基板２１を配位することにより、第１部材１に対する第２部材２の軸方向の位置を２段階に調整することができる。これにより、第１部材１の研磨シート１４の間から第２部材２の研磨シート２３を出没可能とするように配位することができる。   As described above, one of the two fitting grooves 25c and 25i formed on the side surface of the connecting member 25 is selected, and the substrate 21 of the first member 2 is arranged. Thereby, the axial position of the second member 2 relative to the first member 1 can be adjusted in two stages. Thereby, it can coordinate so that the polishing sheet 23 of the 2nd member 2 can be projected and retracted from between the polishing sheets 14 of the 1st member 1. FIG.

よって、第１部材１の突起１１ａを、連結部材２５の手前側嵌合溝２５ｃに配位した際においては、図２に示すように、第１部材１の研磨シート１４に対して、第２部材２の研磨シート２３が没した状態となる。つまり、研磨シート１４のみが表側に現れるものであるため、本実施例の場合は、荒目である研磨シート１４にて研磨加工（荒削り）を行なうことができる。   Therefore, when the projection 11a of the first member 1 is arranged in the front-side fitting groove 25c of the connecting member 25, as shown in FIG. The polishing sheet 23 of the member 2 is in a submerged state. That is, since only the polishing sheet 14 appears on the front side, in this embodiment, polishing (roughing) can be performed with the rough polishing sheet 14.

次に、第１部材１の突起１１ａを、第２部材２の連結部材２５の奥側嵌合溝２５ｉに配位した際においては、図３に示すように、第１部材１の研磨シート１４に対して、第２部材２の研磨シート２３が突出して覆った状態となる。このため、本実施例の場合は、細目である研磨シート２３にて研磨加工（仕上げ）を行なうことができる。   Next, when the protrusion 11a of the first member 1 is arranged in the back-side fitting groove 25i of the connecting member 25 of the second member 2, the polishing sheet 14 of the first member 1 is disposed as shown in FIG. On the other hand, the polishing sheet 23 of the second member 2 protrudes and is covered. For this reason, in the case of a present Example, it can grind | polish (finish) with the grinding | polishing sheet | seat 23 which is fine.

上記のように、第１部材１に対する第２部材２の位置は、連結部材２５の嵌合溝２５ｃ，２５ｉを選択することにより切り換えができ、その切り換えについても、第２部材２を連結部材２５に対してねじることで、容易に行なうことができる。   As described above, the position of the second member 2 with respect to the first member 1 can be switched by selecting the fitting grooves 25c, 25i of the connecting member 25, and the second member 2 is also connected to the connecting member 25 for the switching. It can be easily done by twisting against.

よって従来のように、加工に応じて、いちいち回転研磨材自体を回転工具Ｇに対して取り換えたり、異なる回転研磨材を取り付けた回転工具Ｇを使い分けたりすることなく、簡単に切り換えることができる。   Therefore, as in the prior art, switching can be easily performed without changing the rotating abrasive itself for the rotating tool G or using different rotating tools G to which different rotating abrasives are attached.

本願発明については、上記に説明した実施例の形態に限られず、種々の形態に変更して実施することができる。   The present invention is not limited to the embodiment described above, and can be implemented in various forms.

例えば、上記の第１実施例の場合、第１部材１の突出部１２同士の間における空間の機能として、第１部材１を単独で用いる際には空気導入部１５となり、また、第２部材２と組み合わせて用いる際には、第２部材２の研磨シート２３を受容するための研磨シート挿入空間１５となるものとしているが、第２部材２の基板２１にも、第１部材１の研磨シート挿入空間１５に相当する位置に切欠を形成したり、基板２１をメッシュ構造のものとすることによって、研磨シート挿入空間１５に気流が通るようにしても良い。これにより、第１部材１と第２部材２とを組み合わせて使用する場合であっても、過熱防止や切粉除去の機能を持たせることができる。   For example, in the case of the first embodiment, as a function of the space between the protrusions 12 of the first member 1, when the first member 1 is used alone, it becomes the air introduction portion 15, and the second member 2 is used as a polishing sheet insertion space 15 for receiving the polishing sheet 23 of the second member 2, the first member 1 is also polished on the substrate 21 of the second member 2. An airflow may pass through the polishing sheet insertion space 15 by forming a notch at a position corresponding to the sheet insertion space 15 or by making the substrate 21 have a mesh structure. Thereby, even if it is a case where the 1st member 1 and the 2nd member 2 are used combining, the function of overheating prevention or chip removal can be given.

また、連結部材２５の外側面に形成する嵌合溝の数を増やすことによって、上記の第１実施例においては、第１部材１と第２部材２との間での位置の切り換えが２段階であったものを、３段階以上の調節を可能なものとし、２種の研磨シートを同時に使用して加工できるようにしても良い。   In addition, by increasing the number of fitting grooves formed on the outer surface of the connecting member 25, the position switching between the first member 1 and the second member 2 is performed in two stages in the first embodiment. However, it may be possible to adjust three or more stages so that two kinds of polishing sheets can be used simultaneously.

次に、第２実施例に係る回転研磨材を取り上げて説明する。図１１及び図１２は、本実施例の回転研磨材を示す斜視図である。なお、本実施例に係る回転研磨材についても、特に区別を要する部分以外は、上記の第１実施例と同一の記号を付して説明する。   Next, the rotary abrasive according to the second embodiment will be described. FIG.11 and FIG.12 is a perspective view which shows the rotary abrasive | polishing material of a present Example. Note that the rotating abrasive according to the present embodiment will be described with the same symbols as those in the first embodiment, except for parts that need to be distinguished.

本実施例に係る回転研磨材は、上記の第１実施例において、第１部材１を単独で用いた場合の変形例を示している。   The rotary abrasive according to the present embodiment shows a modification in the case where the first member 1 is used alone in the first embodiment.

本実施例に係る回転研磨材においても基板１１が設けられている。この基板１１は、図１１に示すように外観が円環状のものであって、上記第１実施例における突出部１２を含んだものである。この基板１１の中央部分には、第１実施例と同様に、連結部材２５を受容するための嵌合穴１３が設けられている。   The substrate 11 is also provided in the rotating abrasive according to the present embodiment. The substrate 11 has an annular appearance as shown in FIG. 11, and includes the protrusion 12 in the first embodiment. A fitting hole 13 for receiving the connecting member 25 is provided in the central portion of the substrate 11 as in the first embodiment.

そして、基板１１の一方側の面（表面）に、第１実施例と同様の研磨シート１４が接着されている。具体的には、図１２に示すように、研磨シート１４は基板１１の中央部分１１ｘには取り付けられず、周囲部分１１ｙに取り付けられる。   A polishing sheet 14 similar to that of the first embodiment is adhered to one surface (front surface) of the substrate 11. Specifically, as shown in FIG. 12, the polishing sheet 14 is not attached to the central portion 11x of the substrate 11, but is attached to the peripheral portion 11y.

本実施例における空気導入部１５は、図１２に示すように、基板１１の中央部分１１ｘにおいて、表面側から裏面側へと貫通する貫通穴１５ａと、図１１に示すように、貫通穴１５ａに連通するものであって、基板１１の裏面側において、中央部分１１ｘから周囲部分１１ｙにかけて形成された空気取入溝１５ｂとからなっている。   As shown in FIG. 12, the air introduction part 15 in the present embodiment includes a through hole 15a that penetrates from the front surface side to the back surface side in the central portion 11x of the substrate 11, and a through hole 15a as shown in FIG. The air intake groove 15b is formed on the back surface side of the substrate 11 from the central portion 11x to the peripheral portion 11y.

貫通穴１５ａは、図１２に点線で示すように、裏面側から表面側へと向かうにつれ、回転研磨材の回転方向Ｒの側へ傾斜して設けられている。そして、空気取入溝１５ｂは、基板１１の中央部分１１ｘに位置する貫通穴１５ａから、基板１１の径外方向であり、かつ、回転研磨材の回転方向Ｒへ向かう曲線を描き、加えて、幅が径外方向へ向かうにつれ徐々に広がるような形状とされている。また、空気取入溝１５ｂよりも回転方向Ｒの前方側においては、図１１に示すように、基板１１の側面がカットされた斜面１１ｚが形成されており、回転研磨材の回転に伴い、空気をスムーズに空気導入部１５に導くことができるようになっている。   As shown by a dotted line in FIG. 12, the through hole 15 a is provided so as to be inclined toward the rotational direction R side of the rotating abrasive as it goes from the back surface side to the front surface side. Then, the air intake groove 15b draws a curve from the through hole 15a located in the central portion 11x of the substrate 11 in the radially outward direction of the substrate 11 and toward the rotation direction R of the rotating abrasive, The shape is such that the width gradually widens as it goes outward. Further, on the front side in the rotation direction R from the air intake groove 15b, a slope 11z in which the side surface of the substrate 11 is cut is formed as shown in FIG. Can be smoothly guided to the air introduction section 15.

上記のような形態の空気流通部１５及び斜面１１ｚを基板１１に形成することにより、回転研磨材の回転に伴って、空気が斜面１１ｚ、空気取入溝１５ｂを経て、貫通孔１５ａに誘導される。そして、このように誘導された気流が貫通孔１５ａを通過して、基板１１の表面側に噴出する。そのため、回転研磨材が回転している場合、この気流が常時発生し、研磨対象物と研磨シート１４との間で発生した摩擦熱をこの気流が運び去るため、上記の第１実施例と同様にして、摩擦熱の蓄積によって発生する、研磨シート１４の劣化や研磨対象物の変質等の弊害をなくすことができる。また、この気流によって、研磨により発生する切粉を排除することもできる。   By forming the air circulation part 15 and the inclined surface 11z in the form as described above on the substrate 11, the air is guided to the through hole 15a through the inclined surface 11z and the air intake groove 15b with the rotation of the rotating abrasive. The Then, the airflow thus induced passes through the through hole 15 a and is ejected to the surface side of the substrate 11. Therefore, when the rotating abrasive is rotating, this air flow is always generated, and this air current carries away the frictional heat generated between the object to be polished and the polishing sheet 14, so that it is the same as in the first embodiment. Thus, it is possible to eliminate the adverse effects such as deterioration of the polishing sheet 14 and alteration of the object to be polished, which are caused by the accumulation of frictional heat. In addition, chips generated by polishing can be eliminated by this air flow.

なお、本実施例においては、貫通孔１５ａが基板１１の中央部分１１ｘに設けられた形態を示したが、これに限定されるものではない。例えば、周囲部分１１ｙに貫通孔１５ａを設け、研磨シート１４同士の間から空気を噴出させるものとしても良い。また、上記の第１実施例における突出部１２に、第２実施例のような空気導入部１５や貫通孔１５ａを設けても良く、その他種々の形態にて実施が可能である。   In addition, in the present Example, although the through-hole 15a showed the form provided in the center part 11x of the board | substrate 11, it is not limited to this. For example, a through hole 15a may be provided in the peripheral portion 11y so that air is ejected from between the polishing sheets 14. Further, the air inlet 15 and the through hole 15a as in the second embodiment may be provided on the projecting portion 12 in the first embodiment, and various other forms can be implemented.

ここで、上記の第２実施例に係る回転研磨材を試作し、従来の回転研磨材との比較テストを行ったので説明する。   Here, the rotary abrasive material according to the second embodiment will be prototyped and a comparative test with a conventional rotary abrasive material will be described.

この比較テストは、研磨対象物としてステンレス板（ＳＵＳ３０４）を用い、各回転研磨材をディスクグラインダーに取り付け、回転数１１０００min-1にて研磨し、研磨対象物の研磨量と、回転研磨材の重量の減少量（ホイールロス量）を３分毎に測定し、延べ３０分間にわたって行った。なお、各回転研磨材は、番手が６０の研磨シート１４を、回転研磨材の１つあたりに８０枚を配位したものを用いた。   In this comparative test, a stainless steel plate (SUS304) was used as an object to be polished, and each rotating abrasive was attached to a disk grinder and polished at a rotational speed of 11000 min-1, the polishing amount of the object to be polished and the weight of the rotating abrasive The amount of decrease (wheel loss) was measured every 3 minutes, and the total amount was reduced over 30 minutes. In addition, each rotary abrasive | polishing material used what coordinated the abrasive sheet 14 with a count of 60 sheets per rotation abrasive | polishing material.

結果は表１の通りであり、従来のものよりも本願発明に係る回転研磨材の方が研磨対象物を多く削り取ることができた。よって、気流を回転研磨材の表面側から噴出させ、摩擦熱を取り去りながら研磨作業を行う方が、より効率良く研磨できることが明らかとなった。   The results are as shown in Table 1. The rotating abrasive according to the present invention was able to scrape off more of the object to be polished than the conventional one. Therefore, it has been clarified that the polishing can be performed more efficiently by blowing the airflow from the surface side of the rotating abrasive and performing the polishing operation while removing the frictional heat.

Figure 0004261484
Figure 0004261484

本願発明は、下記の有利な効果を有するものである。   The present invention has the following advantageous effects.

本願の請求項１〜３に記載の発明にあっては、回転研磨材の回転に伴って、突出部が空気導入部に存在する空気を一方に誘導し、気流が発生する。そしてこの気流は、回転研磨材の回転中、常時、空気導入部を通り抜ける。そのため、研磨対象物と研磨シートとの間で発生した摩擦熱をこの気流が運び去り、摩擦熱の蓄積によって発生する、研磨シートの劣化や研磨対象物の変質等の弊害をなくすことができる。 In the inventions according to claims 1 to 3 of the present application, with the rotation of the rotating abrasive, the projecting portion induces the air present in the air introducing portion to one side, and an air flow is generated. And this air current always passes through the air introduction part during rotation of the rotating abrasive. Therefore, this air current carries away the frictional heat generated between the object to be polished and the polishing sheet, and the adverse effects such as deterioration of the polishing sheet and alteration of the object to be polished, which are generated by the accumulation of frictional heat, can be eliminated.

また、本願の請求項４に記載の発明にあっては、第２部材に対する第１部材の位置を容易に切り換えできるため、必要な加工に応じて、回転研磨材自体を回転工具に対してその都度取り換えたり、異なる回転研磨材を取り付けた、別々の回転工具を使い分けたりすることなく、楽に研磨作業を行うことができる。 In the invention according to claim 4 of the present application, the position of the first member relative to the second member can be easily switched. Polishing work can be performed easily without changing each time or using different rotating tools with different rotating abrasives.

また、本願の請求項５に記載の発明にあっては、上記各発明の効果に加え、特に突出部同士の間を空気導入部として用いる場合、空気導入部が研磨シートによって傾斜して形成されるため、回転研磨材の回転中、空気導入部にスムーズに気流を流すことができる。 Further, in the invention described in claim 5 of the present application, in addition to the effects of the above inventions, especially when using a between the projecting portions as an air inlet portion, an air introduction portion is formed to be inclined by an abrasive sheet Therefore, an air current can be smoothly flowed to the air introduction part during the rotation of the rotating abrasive.

本願発明の実施のうちの第１実施例に係る回転研磨材の、回転工具への取り付け方を示す斜視図である。It is a perspective view which shows how to attach the rotary abrasive | polishing material which concerns on 1st Example of implementation of this invention to a rotary tool. 図２（Ａ）は、第１実施例の回転研磨材において、第１部材に対して第２部材が没した状態を示す斜視図であり、図２（Ｂ）は同状態における側面視の要部説明図である。2A is a perspective view showing a state in which the second member is submerged with respect to the first member in the rotating abrasive of the first embodiment, and FIG. 2B is a side view of the same state. FIG. 図３（Ａ）は、第１実施例の回転研磨材において、第１部材に対して第２部材が突出した状態を示す斜視図であり、図３（Ｂ）は同状態における側面視の要部説明図である。FIG. 3A is a perspective view showing a state in which the second member protrudes from the first member in the rotating abrasive of the first embodiment, and FIG. 3B is a side view of the same state. FIG. 第１実施例の回転研磨材において、第１部材と第２部材と連結部材との組み合わせ方を示す斜視図である。It is a perspective view which shows how to combine the 1st member, the 2nd member, and a connection member in the rotary abrasive | polishing material of 1st Example. 図５（Ａ）は、第１実施例の回転研磨材において、連結部材を示す平面図であり、図５（Ｂ）は同正面図、図５（Ｃ）は同底面図である。5A is a plan view showing a connecting member in the rotating abrasive of the first embodiment, FIG. 5B is a front view thereof, and FIG. 5C is a bottom view thereof. 第１実施例の回転研磨材において、第１部材を連結部材に取り付けた状態を示す平面視の説明図であって、図６（Ａ）は係合時、図６（Ｂ）は第１部材がずれた場合を示す。FIG. 6 is an explanatory view in plan view showing a state where the first member is attached to the connecting member in the rotary abrasive of the first embodiment, FIG. 6 (A) being engaged, and FIG. 6 (B) being the first member. It shows the case where is shifted. 第１実施例の回転研磨材において、第１部材の基板と突出部とを示す平面図であり、図中点線部分は、外周連結部を示す。In the rotary abrasive | polishing material of 1st Example, it is a top view which shows the board | substrate and protrusion part of a 1st member, and a dotted-line part in a figure shows an outer periphery connection part. 図８（Ａ）は、第１実施例の回転研磨材において、第１部材を示す、側面視の要部説明図であり、図８（Ｂ）及び図８（Ｃ）は他の例を示す側面視の要部説明図である。FIG. 8A is an explanatory view of a main part in a side view showing the first member in the rotating abrasive of the first embodiment, and FIGS. 8B and 8C show other examples. It is principal part explanatory drawing of a side view. 図９（Ａ）は、本願発明の他の例に係る回転研磨材を示す斜視図であり、図９（Ｂ）は同側面視の要部説明図である。FIG. 9 (A) is a perspective view showing a rotating abrasive according to another example of the present invention, and FIG. 9 (B) is a main part explanatory view of the same side view. 本願発明の他の例に係る回転研磨材を示す斜視図である。It is a perspective view which shows the rotary abrasive which concerns on the other example of this invention. 本願発明の実施のうちの第２実施例に係る回転研磨材の、裏面側から見た斜視図である。It is the perspective view seen from the back surface side of the rotary abrasive | polishing material which concerns on 2nd Example among implementation of this invention. 本願発明の実施のうちの第２実施例に係る回転研磨材の、表面側から見た斜視図である。It is the perspective view seen from the surface side of the rotary abrasive | polishing material which concerns on 2nd Example among implementation of this invention.

Claims (5)

研磨シート（１４）が表面に配列された円盤状物体であり、これを回転工具（Ｇ）に取り付けることにより、対象物を研磨することができる回転研磨材（１０）において、
この回転研磨材（１０）は、基板（１１）と突出部（１２）とを備え、
基板（１１）は、平面視が円盤状であって、その中心を回転工具（Ｇ）の回転軸（Ｓ）に取り付け可能なものであり、
突出部（１２）は、基板（１１）の径外方向に突出するように複数設けられたものであって、
各々の突出部（１２）は、
基端が基板（１１）と一体とされており、先端が外周部（１２ｃ）とされており、
上記研磨シート（１４）が取り付けられた表面とその逆側の面である裏面とを有し、
そして、回転研磨材（１０）の回転方向（Ｒ）を基準とした前端側端面（１２ａ）と後端側端面（１２ｂ）とを有しており、
上記複数の突出部（１２）同士の間は、回転研磨材（１０）の裏面側から表面側へと貫通する空間である空気導入部（１５）とされており、
上記突出部（１２）には、整流板（１７）と斜面（１９）とが形成されており、
上記整流板（１７）は、上記突出部（１２）の裏面側の略周方向に沿って突出するものであり、
上記斜面（１９）は、上記突出部（１２）の径方向における先端部分のうち裏面側に、前端側端面（１２ａ）の寸法を絞るように形成されたものであることを特徴とする回転研磨材。In the rotating abrasive (10), which is a disk-like object having an abrasive sheet (14) arranged on the surface, and by which the abrasive sheet (14) is attached to the rotating tool (G), the object can be polished.
This rotary abrasive (10) comprises a substrate (11) and a protrusion (12),
The substrate (11) has a disk shape in plan view, and its center can be attached to the rotation axis (S) of the rotary tool (G).
A plurality of protrusions (12) are provided so as to protrude outward in the radial direction of the substrate (11) ,
Each protrusion (12)
The base end is integrated with the substrate (11), the tip is the outer peripheral portion (12c),
It has a front surface to which the polishing sheet (14) is attached and a back surface that is the opposite surface,
And it has the front end side end surface (12a) and the rear end side end surface (12b) on the basis of the rotation direction (R) of the rotating abrasive (10),
Between the plurality of protrusions (12) is an air introduction part (15) that is a space penetrating from the back surface side of the rotating abrasive (10) to the front surface side,
The protrusion (12) is formed with a current plate (17) and a slope (19),
The rectifying plate (17) protrudes along a substantially circumferential direction on the back side of the protruding portion (12),
The inclined surface (19) is formed by narrowing the size of the front end side end surface (12a) on the back surface side of the distal end portion in the radial direction of the projecting portion (12). Wood. 上記突出部（１２）の前端側端面（１２ａ）のうち裏面側に、回転研磨材（１０）の回転方向（Ｒ）における前側へ突出するように空気導入用突起（１８）が形成されたことを特徴とする、請求項１に記載の回転研磨材。The air introduction protrusion (18) is formed on the back surface side of the front end side end face (12a) of the protrusion (12) so as to protrude to the front side in the rotational direction (R) of the rotating abrasive (10). The rotary abrasive according to claim 1, wherein: 上記の各突出部（１２）の外周部（１２ｃ）同士を連結するようにして外周連結部（１６）が形成されたことにより、上記空気導入部（１５）が、基板（１１）と突出部（１２）と外周連結部（１６）とにより囲まれたものであることを特徴とする、請求項１または２に記載の回転研磨材。By the projection of the outer peripheral portion (12c) outer peripheral connecting portion so as to connect the ends of (12) (16) is formed, the air introducing portion (15), the projecting portion substrate (11) The rotating abrasive according to claim 1 or 2 , characterized in that it is surrounded by (12) and the outer peripheral connecting portion (16). 研磨シート（１４，２３）が表面に配列された円盤状物体であり、これを回転工具（Ｇ）に取り付けることにより、対象物を研磨することができる回転研磨材（１０）において、
この回転研磨材（１０）が第１部材（１）と第２部材（２）と取付位置調整手段（２５）とからなるものであり、
第１部材（１）として、請求項１または２に記載の回転研磨材が用いられたものであり、
上記の空気導入部（１５）は、第２部材（２）の研磨シート（２３）を受容する研磨シート挿入空間として作用し、
第２部材（２）は基板（２１）を備え、
基板（２１）は、平面視が円盤状であって、その中心を回転工具（Ｇ）の回転軸（Ｓ）に取り付け可能なものであり、
研磨シート（２３）が、基板（２１）の一方側の表面であり、かつ、平面視において、第１部材（１）の上記研磨シート挿入空間（１５）に相当する位置に配位されたものであり、
取付位置調整手段（２５）は、第１部材（１）と第２部材（２）を組み合わせた際に、軸方向の位置関係を調整するための手段であり、
第１部材（１）と第２部材（２）を、各基板（１１，２１）の中心を一致させるように組み合わせることにより、第１部材（１）の研磨シート（１４）と第２部材（２）の研磨シート（２３）とが交互に配位されるものであり、
第１部材（１）に対して、第２部材（２）の研磨シート（２３）が出没可能とされたものであることを特徴とする回転研磨材。In the rotating abrasive (10), which is a disk-like object with the abrasive sheets (14, 23) arranged on the surface, and which can polish the object by attaching it to the rotating tool (G),
The rotating abrasive (10) is composed of the first member (1), the second member (2), and the attachment position adjusting means (25).
As the first member (1) , the rotary abrasive according to claim 1 or 2 is used,
The air introduction part (15) acts as a polishing sheet insertion space for receiving the polishing sheet (23) of the second member (2),
The second member (2) comprises a substrate (21),
The substrate (21) has a disk shape in plan view, and its center can be attached to the rotation axis (S) of the rotary tool (G).
Those abrasive sheet (23) is, to a surface of one side of the substrate (21), and, in a plan view, which is coordinated to a position corresponding to the abrasive sheet insertion space of the first member (1) (15) And
The attachment position adjusting means (25) is a means for adjusting the positional relationship in the axial direction when the first member (1) and the second member (2) are combined.
By combining the first member (1) and the second member (2) so that the centers of the substrates (11, 21) are aligned, the polishing sheet (14) of the first member (1) and the second member ( 2) and the polishing sheet (23) are alternately coordinated,
A rotating abrasive, wherein the abrasive sheet (23) of the second member (2) can be projected and retracted relative to the first member (1). 研磨シート（１４，２３）が、回転研磨材（１０）の回転方向に対して傾斜して配位されたことを特徴とする、請求項１〜４のいずれかに記載の回転研磨材。The rotating abrasive according to any one of claims 1 to 4 , characterized in that the abrasive sheets (14, 23) are arranged with an inclination relative to the rotational direction of the rotating abrasive (10).
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