JP3093104U

JP3093104U - Polishing disc improvements

Info

Publication number: JP3093104U
Application number: JP2002006621U
Authority: JP
Inventors: 勇柳瀬
Original assignee: 柳瀬株式会社
Priority date: 2002-09-10
Filing date: 2002-09-10
Publication date: 2003-04-18
Anticipated expiration: 2008-09-10

Abstract

(57)【要約】（修正有）【課題】研磨ディスクの交換・取替を専用工具なしに楽
に短時間で実施でき、加工物の「焼け」による表面変色
を防止すること。【解決手段】研磨ディスク１は、別体に形成された第１
研磨部材１０と第２研磨部材２０とから成る。これら両
者の、切込部１２，２２を重ね合わせ、回転係合され着
脱自在である。第１研磨部材１０は、固定ネジナット１
０２によってグラインダー１００の回転軸１０１に固定
される。これによって、第１研磨部材１０を回転軸１０
１に固定したまま第２研磨部材２０を着脱できる。ま
た、第１研磨部材１０の基板１１に遮蔽部１４を設け、
第１研磨部材１０が高速回転することで強制的に風を加
工物に当て、空冷効果により加工物の「焼け」を防止す
る。 (57) [Summary] (With correction) [Problem] To replace and replace a polishing disk easily and in a short time without a special tool, and to prevent surface discoloration due to "burn" of a workpiece. A polishing disc (1) is provided with a first formed separately.
It comprises a polishing member 10 and a second polishing member 20. The cut portions 12 and 22 of these two are superimposed, rotationally engaged, and detachable. The first polishing member 10 includes a fixing screw nut 1
02 is fixed to the rotating shaft 101 of the grinder 100. As a result, the first polishing member 10 is
The second polishing member 20 can be attached and detached while being fixed at 1. Further, a shielding portion 14 is provided on the substrate 11 of the first polishing member 10,
When the first polishing member 10 rotates at a high speed, wind is forcibly applied to the workpiece, and "burn" of the workpiece is prevented by the air cooling effect.

Description

[Detailed description of the device]

【０００１】［考案の属する技術］本願考案は、グラインダー等の回転工具（１００）の回転軸（１０１）に取付け固定して使用する研磨ディスク（１）の改良に関する。[0001] [Technology to which the device belongs] The present invention is mounted on a rotary shaft (101) of a rotary tool (100) such as a grinder. The present invention relates to improvement of a polishing disk (1) which is used by being fixed.

【０００２】［従来の技術］鉄・ステンレスなど金属表面を磨き、仕上る場合、最初は粗い粒度の研磨ディスクを使用し削る。その後、細かな粒度の研磨ディスクにて仕上研磨することが多い。この場合、作業者は２種類以上の研磨ディスクを常に携帯し、その都度研磨ディスクを交換する必要があった。[0002] [Conventional technology] When polishing and finishing a metal surface such as iron or stainless steel, first use a coarse-grained polishing disk. Use a knife to sharpen. After that, finish polishing is often performed with a fine-grained polishing disk. Yes. In this case, the operator always carries two or more types of polishing disks, I had to replace the disc.

【０００３】［考案が解決しようとする課題］研磨ディスクの交換に際しては、専用工具を使用してグラインダー（１００）のナット（１０２）を緩めて外すことによって、使用した研磨ディスクをグラインダー（１００）の回転軸（１０１）から取り外し、その後、新しい研磨ディスクをグラインダー（１００）の回転軸（１０１）に取付け、再度専用工具を利用してナット（１０２）を締付けて固定しなければならず、非常に手間が掛かり、作業性、作業効率が非常に悪かった。[0003] [Problems to be solved by the device] When replacing the polishing disc, use a special tool to remove the grinder (100). Grind the used polishing disc by loosening and removing the nut (102). Removed from the rotating shaft (101) of the dar (100) and then a new abrasive disc Is attached to the rotary shaft (101) of the grinder (100) and the special tool is used again. The nut (102) must be tightened and fixed, which is very time-consuming and The workability and work efficiency were very poor.

【０００４】また、従来の研磨ディスクにて研磨作業する場合、高速に回転した研磨ディスクと加工物との摩擦熱により、加工物が「焼け」を生じ、加工物の表面が変色するという不具合が多かった。[0004] Also, when polishing with a conventional polishing disc, the polishing disc rotated at high speed The frictional heat between the workpiece and the workpiece causes "burning" in the workpiece, causing the surface of the workpiece to change color. There were many problems.

【０００５】特に、加工物の「焼け」は粗い粒度で研磨する場合に多く発生した。[0005] In particular, the "burn" of the processed material often occurred when polishing with a coarse grain size.

【０００６】［課題を解決するための手段］上記課題を解決するために、本願考案の第１のものは、グラインダー等の回転駆動機（１００）の回転軸（１０１）に固定される基板（１１）と、その基板（１１）の表面側に配列された第１研磨部材（１０）とからなる研磨ディスクにおいて、中空部分（２３）を要した基板（２１）の表面側に設けられた第２研磨部材（２０）が、第１研磨部材（１０）と着脱自在に形成されることを特徴とする研磨ディスクである。[0006] [Means for solving the problem] In order to solve the above problems, the first aspect of the present invention is a rotary drive such as a grinder. The substrate (11) fixed to the rotating shaft (101) of the motive (100) and the substrate (1) 1) A polishing disk comprising a first polishing member (10) arranged on the front surface side. Second polishing member provided on the surface side of the substrate (21) requiring the hollow portion (23) The polishing tool (20) is detachably formed on the first polishing member (10). It is a polishing disc.

【０００７】円板状の基板（１１）上に配列された第１研磨部材（１０）を、回転工具（１００）の回転軸（１０１）にナット（１０２）を重着して固定する。この状態にて研磨することも可能である。即ち、研磨工程の第１工程は粗い粒度の方が早く削れるので、第１研磨部材（１０）は第２研磨部材（２０）より粗いサンドペーパー片（２）を基板（１１）に接着することが望ましい。[0007] The first polishing member (10) arranged on the disk-shaped substrate (11) is attached to the rotary tool (10). The nut (102) is attached to the rotating shaft (101) of (0) by superposition. It is also possible to polish in this state. That is, the first step of the polishing step has a coarse grain size. The first polishing member (10) is rougher than the second polishing member (20) because it can be ground faster. It is desirable to adhere the piece of sandpaper (2) to the substrate (11).

【０００８】次に仕上工程の作業をする際は、円板状の基板（２１）の中空部分（２３）を要した第２研磨部材（２０）を、第１研磨部材（１０）に螺合その他の係合手段によって分離可能に固定できるので、従来の様にグラインダー（１００）のナット（１０２）を専用工具を用いて外さなくても、容易に仕上工程用の研磨ディスクを固定することができる。[0008] Next, when the finishing process is performed, the hollow portion (23) of the disk-shaped substrate (21) is required. The second polishing member (20) thus formed is screwed onto the first polishing member (10) and used as other engaging means. Therefore, since it can be fixed separably, the nut of the grinder (100) can be fixed as before. Abrasive disk for finishing process easily without removing (102) with special tool Can be fixed.

【０００９】第１研磨部材（１０）と第２研磨部材（２０）の、サンドペーパー片（２）のブロック数は同数で、基板上（１１）（２１）に均等に配列され接着されている。また、第１研磨部材（１０）と第２研磨部材（２０）のサンドペーパー片（２）が基板（１１）（２１）に接着されていない部分は、外周から一定の寸法で切込み（１２）（２２）が入っている。第１研磨部材（１０）の切込部（１２）と第２研磨部材（２０）の切込部（２２）同士を重ね合わせ、回転軸（１０１）の回転方向と同方向に回転させて、第２研磨部材（２０）は第１研磨部材（１０）に係合でき、これを逆回転させることによって、その係合が解除される。[0009] The sandpaper piece (2) of the first polishing member (10) and the second polishing member (20) The number of locks is the same, and they are evenly arranged and bonded on the substrates (11) and (21). Further, sandpaper pieces (2) of the first polishing member (10) and the second polishing member (20). The part that is not bonded to the substrate (11) (21) is cut from the outer periphery with a certain size. Contains only 12 and 22. The cut portion (12) of the first polishing member (10) and the first 2 The cutting parts (22) of the polishing member (20) are overlapped with each other, and the rotary shaft (101) is rotated. By rotating in the same direction as the rolling direction, the second polishing member (20) becomes the first polishing member (10). Engagement is possible, and by reversing it, the engagement is released.

【００１０】本願考案の第２のものは、上記第１の考案において、第１研磨部材（１０）と第２研磨部材（２０）は適宜数のブロック毎にサンドペーパー片（２）にて形成されたものであり、第２研磨部材（２０）の基板（２１）はその中央に中空部分（２３）を備えた円板であり、第１研磨部材（１０）の基板（１１）にはその中央にグラインダー（１００）の回転軸（１０１）に取付るための、回転軸取付孔（１３）が形成されている。[0010] The second aspect of the present invention is the same as the first aspect, except that the first polishing member (10) and 2 The polishing member (20) is formed by sandpaper pieces (2) for every suitable number of blocks. The substrate (21) of the second polishing member (20) has a hollow portion ( 23) which is a disk provided with a central part of the substrate (11) of the first polishing member (10). To attach to the rotary shaft (101) of the grinder (100). 13) has been formed.

【００１１】本願考案の第３のものは、上記の係合手段において、第１研磨部材（１０）と第２研磨部材（２０）の解除を阻止する出没自在のストッパー（３０）を、第１研磨部材（１０）の中心部分に設けたものである。このストッパー部材（３０）により、第２研磨部材（２０）が不用意に第１研磨部材（１０）から脱落してしまうことを防止することができる。[0011] A third aspect of the present invention is the above-mentioned engaging means, wherein the first polishing member (10) and the first polishing member (10) are used. 2 The stopper (30) that can be retracted and that prevents the release of the polishing member (20) is attached to the first polishing device. It is provided at the center of the polishing member (10). The stopper member (30) causes the second polishing member (20) to carelessly perform the first polishing. It is possible to prevent the member (10) from falling off.

【００１２】本願考案の第４のものは、第１研磨部材（１０）の基板（１１）の各々の切込部（１２）に遮蔽部（１４）が形成されている。この遮蔽部（１４）によりグラインダー（１００）の回転軸（１０１）によって高速回転した第１研磨部材（１０）は、強制的に空気の流れをサンドペーパー片（２）側、つまり加工物へ当てることができる。このことで、加工物を冷却することができ「焼け」による加工物表面の変色を防止できる。[0012] A fourth aspect of the present invention is a notch in each of the substrates (11) of the first polishing member (10). A shield (14) is formed on (12). By the shield (14), the rotary shaft (101) of the grinder (100) The first polishing member (10) rotated at a high speed forcedly forced the air flow into the sandpaper piece. It can be applied to the (2) side, that is, the workpiece. This allows the work piece to be cooled and prevents discoloration of the work piece surface due to "burning". Can be stopped.

【００１３】［考案の実施の形態］以下、添付の図面と共に考案実施の態様を説明するが、例示は単に説明用のもので、発想思想の制限又は限定を意味するものではない。[0013] [Embodiment of Device] Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings, but the exemplification is merely for explanation. However, it does not mean that the idea is limited or restricted.

【００１４】図１乃至図２は、回転駆動機であるグラインダー（１００）の回転軸（１０１）の部分と、本願考案に係る研磨ディスク（１）の実施形態を図示しており、図１と図２が分解斜視図である。[0014] 1 and 2 show a rotary shaft (101) of a grinder (100) which is a rotary drive machine. 1 and an embodiment of a polishing disc (1) according to the present invention are shown in FIG. 2 is an exploded perspective view.

【００１５】先ず、ここに図示されたグラインダー（１００）は電動式のものであって、その回転軸（１０１）の先端には、雄ネジ部（１０３）が形成されているものである。円板状の基板（１１）（２１）は硬質な合成樹脂製である。（１０２）は、回転軸（１０１）の雄ネジ部（１０３）と螺合する固定ネジナットを示し、（１０４）はパッキンを示している。[0015] First, the grinder (100) shown here is of an electric type, A male screw portion (103) is formed at the tip of the rotating shaft (101). . The disk-shaped substrates (11) and (21) are made of hard synthetic resin. (102) is a fixing screw nut that is screwed with the male screw portion (103) of the rotating shaft (101). (104) indicates packing.

【００１６】本願考案の研磨ディスク（１）を構成する第１研磨部材（１０）は、回転軸（１０１）への接続部としての回転軸取付孔（１３）を中央に有している。もう一方の、研磨ディスクを構成する第２研磨部材（２０）は、中央部に円形貫通孔からなる中空部分（２３）が形成された円板形状を有するものからなり、その中空部分（２３）の内周面には、１／４周長さの回転係合部としての突条部（２４）を２箇所に点対称の位置に形成する。[0016] The first polishing member (10) constituting the polishing disk (1) of the present invention comprises a rotating shaft (1 01) has a rotary shaft mounting hole (13) at the center as a connecting portion. The second polishing member (20), which constitutes the other polishing disk, has a circular penetrating hole at the center. It has a disk shape with a hollow part (23) formed of a through hole, On the inner peripheral surface of the hollow portion (23) of the 24) is formed at two points in symmetrical positions.

【００１７】図３乃至図４は、研磨ディスクを構成する第１研磨部材（１０）と第２研磨部材（２０）の円板状の基板側から見た底面図である。[0017] 3 to 4 show a first polishing member (10) and a second polishing member that constitute a polishing disk. It is a bottom view seen from the disk-shaped substrate side of (20).

【００１８】第１研磨部材（１０）と第２研磨部材（２０）のサンドペーパー片（２）のブロック数は同数で、基板（１１）（２１）上に均等に配列されている。サンドペーパー片（２）が配列されていない部分には、切込み（１２）（２２）が同寸法で入っている。これによって、第１研磨部材（１０）と第２研磨部材（２０）は、各々に形成された切込み部（１２）（２２）を相互に回転係合させて嵌め込んでゆくのである。[0018] A block of sandpaper pieces (2) of the first polishing member (10) and the second polishing member (20). The number of packs is the same, and they are evenly arranged on the substrates (11) and (21). Cuts (12) (22) on the part where the sandpaper pieces (2) are not arranged. Have the same dimensions. As a result, the first polishing member (10) and the second polishing member ( 20) is formed by rotationally engaging the notches (12) and (22) formed on each other. It fits in.

【００１９】この嵌め込みの回転係合方向は、グラインダー（１００）の回転軸（１０１）の回転方向と同方向になる。[0019] The rotational engagement direction of this fitting is the same as that of the rotary shaft (101) of the grinder (100). It becomes the same direction as the rotation direction.

【００２０】鉄・ステンレスなどの表面を磨いて仕上る工程において、第１工程で短時間に研磨するには、第１研磨部材（１０）の粗い粒度のサンドペーパー片（２）にて研磨する。その後、細かい粒度のサンドペーパー片（２）にて形成される第２研磨部材（２０）にて仕上研磨を実施する。[0020] In the process of polishing and finishing the surface of iron, stainless steel, etc. To polish, sand with a piece of coarse sandpaper (2) of the first polishing member (10). To polish. After that, the second polishing member (2 Finish polishing is performed in 0).

【００２１】上記の様に、第１研磨部材（１０）を用いて（図１）研磨した後、第２研磨部材（２０）をグラインダー（１００）に取付ける場合は、固定ネジナット（１０２）を緩めて第１研磨部材（１０）を取外す必要が全くなく、第２研磨部材（２０）のみを係合回転するだけで研磨作業が実施できる。従って、一度この第１研磨部材（１０）を回転軸（１０１）に取付けておくだけで、その後は全く固定ネジナット（１０２）の取外しと固定作業を行う必要がなく、簡単にワンタッチで研磨部材の交換が可能となるのである。[0021] As described above, after polishing with the first polishing member (10) (FIG. 1), the second polishing member When attaching (20) to the grinder (100), the fixing screw nut (102 ) Need not be loosened to remove the first polishing member (10), and the second polishing member (20) The polishing work can be carried out only by engaging and rotating only). Therefore, it is only necessary to attach the first polishing member (10) to the rotating shaft (101) once. After that, it is absolutely necessary to remove and fix the fixing screw nut (102). In addition, the polishing member can be easily replaced with one touch.

【００２２】固定ネジナット（１０２）は円板状のものからなり、中央に回転軸（１０１）と螺合するネジ孔（１０５）が形成され、その周辺に４個の穴部（１０６）が穿設されたものである。この固定ネジナット（１０２）を締着したり緩めたりする際には、帯板状のものの先端に２つの突起が設けられた専用工具を使用するが、この工具の２つの突起を前記穴部（１０６）に嵌合させて、この固定ネジナット（１０２）を回転させることができる。[0022] The fixing screw nut (102) is made of a disk and has a rotating shaft (101) at the center. A screw hole (105) to be screwed is formed, and four hole portions (106) are formed around the screw hole (105). It was done. When tightening or loosening this fixing screw nut (102), a strip-shaped object Use a special tool with two protrusions on the tip of the Is fitted into the hole (106), and the fixing screw nut (102) is rotated. You can

【００２３】図５は、第１研磨部材（１０）の中央断面図である。図から解る通り、中央部にピン（３０）を設けている。このピン（３０）がストッパー部材である。このピン（３０）は両端部に径大頭部（３１）が設けられたもので、基板本体（１１）に穿設された穴部（３２）よりも長い長さの軸部を有し、その穴部（３２）に遊嵌されている。従って、ピン（３０）は重力の影響によりその両端部の径大頭部（３１）が出たり、引っ込んだりする。つまり、図示の状態においては上方を向いているため、ピン（３０）の径大頭部（３１）は引っ込んだままとなっており、研磨作業状態のときには、ピン（３０）は、下方に突出した状態となる。[0023] FIG. 5 is a central cross-sectional view of the first polishing member (10). As can be seen from the figure, a pin (30) is provided at the center. This pin (30) is a strike It is a top member. The pin (30) has large diameter heads (31) at both ends. Which has a shaft portion longer than the hole portion (32) formed in the substrate body (11). However, it is loosely fitted in the hole (32). Therefore, the pin (30) is not affected by gravity. Further, the large-diameter heads (31) at both ends thereof are projected or retracted. That is, the illustration In this state, the large head (31) of the pin (30) is pulled because it faces upward. The pin (30) remains in the closed position, and the pin (30) It will be in a protruding state.

【００２４】このピン（３０）によって、グラインダー（１００）を上方に向けて第２研磨部材（２０）を回転係合する際には、ピン（３０）が引っ込んでいるため係合の邪魔にならず、他方使用状態のときにはピン（３０）が下方に突出して、第２研磨部材（２０）が外れてしまうことを防止できるストッパーの役割を果たすことができる。[0024] With this pin (30), the grinder (100) is directed upward and the second polishing section is moved. When the material (20) is rotationally engaged, the pin (30) is retracted so that the engagement is impeded. It does not get in the way, and the pin (30) protrudes downward when it is in use and the second polishing It can play the role of a stopper that can prevent the member (20) from coming off. it can.

【００２５】図６は、本願考案の研磨ディスク（１）がグラインダー（１００）に取付けられた斜視図である。第１研磨部材（１０）と第２研磨部材（２０）が重ね合わさっていることを示している。図から解る通り、第２研磨部材（２０）のサンドペーパー片（２）は第１研磨部材（１０）のサンドペーパー片（２）より長く形成されている。[0025] FIG. 6 shows that the polishing disk (1) of the present invention is attached to the grinder (100). FIG. The first polishing member (10) and the second polishing member (20) are superposed on each other. It indicates that As can be seen from the figure, the sandpaper of the second polishing member (20) is The par piece (2) is longer than the sandpaper piece (2) of the first polishing member (10). Has been.

【００２６】従って、細かな粒度で形成された第２研磨部材（２０）のサンドペーパー片（２）が、第１研磨部材（１０）のサンドペーパー片（２）を覆い隠すので、仕上研磨が実施できる。[0026] Therefore, the sandpaper piece (2) of the second polishing member (20) formed with a fine grain size. ) Covers the sandpaper piece (2) of the first polishing member (10), and Can be polished.

【００２７】［考案の効果］本願考案の第１のものにおいては、第２研磨部材（２０）を第１研磨部材（１０）へ着脱自在になっているので、作業者が研磨ディスクをグラインダー（１００）から取外し交換する手間が省ける。[0027] [Effect of device] In the first aspect of the present invention, the second polishing member (20) is replaced with the first polishing member (10). ), The operator can attach the polishing disk to the grinder (100 ) To remove the trouble of replacing.

【００２８】本願考案の第２のものにおいては、上記第１の考案の効果に加えて、第１研磨部材（１０）の回転軸（１０１）への接続部が単に回転軸取付孔（１３）から形成されているため、各種タイプの回転軸に取付ることが可能となる。[0028] In the second aspect of the present invention, in addition to the effect of the first aspect, the first polishing section The connecting part of the material (10) to the rotary shaft (101) is formed simply from the rotary shaft mounting hole (13). Therefore, it can be attached to various types of rotary shafts.

【００２９】本願考案の第３のものにおいては、第１研磨部材（１０）に設けられたストッパー部材（３０）によって、第１研磨部材（１０）に係合された第２研磨部材（２０）が不用意に第１研磨部材（１０）から脱落してしまうことを防止することができる。[0029] According to a third aspect of the present invention, a stopper provided on the first polishing member (10) The second polishing member (2) engaged with the first polishing member (10) by the first member (30). 0) can be prevented from accidentally falling off from the first polishing member (10). it can.

【００３０】本願考案の第４のものにおいては、第１研磨部材（１０）のみで研磨作業をする場合、第１研磨部材（１０）がグラインダー（１００）の回転軸（１０１）によって高速回転すると、基板（１１）の切込部（１２）の設けた遮蔽部（１４）が、風車の要領で空気の流れを発生させる。この空気の流れが、鉄などの加工物に当るので、加工物の「焼け」の発生を防止できる。[0030] In the fourth aspect of the present invention, the polishing work is performed only by the first polishing member (10). In this case, the first polishing member (10) is attached to the rotary shaft (101) of the grinder (100). When rotated at a high speed, the shielding part (14) provided with the cutout part (12) of the substrate (11) , Generate air flow in the manner of a windmill. This air flow hits the workpiece such as iron, preventing the "burn" of the workpiece. it can.

[Brief description of drawings]

【図１】本願考案に係る研磨ディスク（１）の第１研磨
部材（１０）の実施形態を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an embodiment of a first polishing member (10) of a polishing disk (1) according to the present invention.

【図２】本願考案に係る研磨ディスク（１）を示す分解
斜視図である。FIG. 2 is an exploded perspective view showing a polishing disk (1) according to the present invention.

【図３】第１研磨部材（１０）の基板（１１）側から見
た状態を示し、遮蔽部（１４）の拡大図である。FIG. 3 is an enlarged view of a shielding part (14) showing a state of the first polishing member (10) viewed from the substrate (11) side.

【図４】第２研磨部材（２０）の基板（２１）側から見
た状態を示した背面図である。FIG. 4 is a rear view showing a state of the second polishing member (20) viewed from the substrate (21) side.

【図５】本願考案に係る第１研磨部材（１０）のストッ
パー部材（３０）を示す中央断面図である。FIG. 5 is a central sectional view showing a stopper member (30) of the first polishing member (10) according to the present invention.

【図６】本願考案に係る第２研磨部材（２０）を第１研
磨部材（１０）に回転係合した研磨ディスク（１）をグ
ラインダー（１００）に取付けた斜視図である。FIG. 6 is a perspective view of the grinding disk (1) in which the second polishing member (20) according to the present invention is rotationally engaged with the first polishing member (10) and is attached to the grinder (100).

[Explanation of symbols]

１ …本願考案に係る研磨ディスク２ …サンドペーパー片１０…第１研磨部材１１…第１研磨部材の基板１２…第１研磨部材の切込部１３…第１研磨部材の回転軸取付孔１４…第１研磨部材の基板の遮蔽部２０…第２研磨部材２１…第２研磨部材の基板２２…第２研磨部材の切込部２３…第２研磨部材の基板の中空部分２４…第２研磨部材の基板の突条部３０…ピン，ストッパー部材３１…ピンの径大頭部３２…第２研磨部材の基板の穴部１００…グランインダー１０２…固定ネジナットまたはナット１０３…グラインダーの雄ネジ部１０４…グラインダーのパッキン１０５…固定ネジナットのネジ孔１０６…固定ネジナットの穴部 1 ... Abrasive disk according to the present invention 2… Sandpaper piece 10 ... First polishing member 11 ... Substrate of the first polishing member 12 ... Notch of first polishing member 13 ... Rotating shaft mounting hole of the first polishing member 14 ... Shielding part of substrate of first polishing member 20 ... Second polishing member 21 ... Substrate of the second polishing member 22 ... Notch of second polishing member 23 ... Hollow part of substrate of second polishing member 24 ... Projection of substrate of second polishing member 30 ... Pin, stopper member 31 ... Large diameter head of pin 32 ... Hole in substrate of second polishing member 100 ... Gran Inder 102 ... Fixing screw nut or nut 103 ... Male thread of grinder 104 ... Grinder packing 105 ... Screw hole for fixing screw nut 106 ... Hole of fixing screw nut

Claims

[Scope of utility model registration request]

1. A polishing disk (1) comprising a disk-shaped substrate (11) fixed to a rotating shaft (101) of a disk grinder (100) and a polishing member provided on the substrate (11). A disc-shaped substrate (11) is detachably engageable with a first polishing member (10) in which sandpaper pieces (2) are arranged for each block in an appropriate number. The second polishing member (20) and the first polishing member (1
0) is the rotation axis (1) of the disc grinder (100)
A polishing disk which is fixed to 01) so that it can be used. (Fig. 6)

2. The substrate (11) (21) of the first polishing member (10) and the second polishing member (20) has a notch (12).
The abrasive disc according to claim 1, wherein the abrasive disc contains (22). (Figure 3) (Figure 4)

3. An engaging means for engaging with a first polishing member (10) and a second polishing member (20), wherein a retractable stopper member (30) for preventing the disengagement of the two is provided as the first polishing member. The polishing disk according to claim 1 or 2, wherein the polishing disk is provided at an appropriate position of (10). (Fig. 5)

4. A shield part (14) is provided on the cut part (12) of the substrate (11) of the first polishing member (10) so as to force the flow of air to the workpiece by rotating. The polishing disk according to claim 1 or 2, characterized in that (Figure 3)