JP3502194B2 - Sanda - Google Patents
SandaInfo
- Publication number
- JP3502194B2 JP3502194B2 JP16998695A JP16998695A JP3502194B2 JP 3502194 B2 JP3502194 B2 JP 3502194B2 JP 16998695 A JP16998695 A JP 16998695A JP 16998695 A JP16998695 A JP 16998695A JP 3502194 B2 JP3502194 B2 JP 3502194B2
- Authority
- JP
- Japan
- Prior art keywords
- base
- polishing
- polishing dish
- hole
- eccentric shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、モータの出力軸
に、偏心機構を介してベースを直交状に連結し、そのベ
ースに、底面にサンドペーパー等の研磨材を装着した研
磨皿体を設けたサンダに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output shaft of a motor, to which a base is connected in an orthogonal manner via an eccentric mechanism, and the base is provided with a polishing plate having a bottom surface to which an abrasive material such as sandpaper is attached. Regarding Thunder.
【0002】[0002]
【従来の技術】上記サンダにおいては、狭いスペースや
隅部等でも研磨加工が行えるように研磨皿体は三角形や
四角形等の角形が採用され、サンドペーパー等の研磨材
も研磨皿体と同形状で、研磨皿体の底面へ面ファスナー
等で貼着させたり、或は留め金やクリップ等で固着した
りしているが、隅部等の研磨作業では、研磨皿体の1つ
の角部を集中的に使用するから、当該部分でのサンドペ
ーパーの摩耗が早くなり、又当該角部の面ファスナーの
貼着力も劣化する。よって、例えば三角形の研磨皿体で
は、サンドペーパーを一旦研磨皿体から剥して回転さ
せ、使用箇所を他の角部に変えることで、3つの角部を
全て使用できるようにしているが、研磨皿体側の面ファ
スナーの劣化は避けられない。そこでネジ止め等でベー
スに取り付けられた研磨皿体を、一旦取り外して、研磨
皿体ごと回転させてサンドペーパーの使用位置を変更可
能とした構造も採用されている。2. Description of the Related Art In the above sander, the polishing dish has a triangular shape such as a triangle or a quadrangle so that polishing can be performed even in a narrow space or a corner, and the polishing material such as sandpaper has the same shape as the polishing dish. Then, it is attached to the bottom surface of the polishing dish with a hook-and-loop fastener, etc., or it is fixed with a clasp, a clip, etc. Since the sandpaper is used intensively, abrasion of the sandpaper at that portion is accelerated, and the adhesive force of the surface fastener at the corner is also deteriorated. Therefore, for example, in the case of a triangular polishing dish, the sandpaper is once peeled off from the polishing dish and rotated, and all three corners can be used by changing the use location to another corner. Degradation of the hook-and-loop fastener on the dish side is inevitable. Therefore, there is also adopted a structure in which the polishing dish attached to the base by screwing or the like is temporarily removed, and the polishing dish is rotated together with the sandpaper so that the use position of the sandpaper can be changed.
【0003】[0003]
【発明が解決しようとする課題】しかし上記研磨材の使
用箇所の変更は、一旦剥して貼り直したり、ネジにより
研磨皿体を着脱したりする作業を伴うから、これらの作
業が面倒で、特に面ファスナー等で研磨材のみを貼り直
す場合は正確に位置を合わせる必要もあり、ずれが生じ
ると再度貼り直すこととなって余計に手間がかかってい
た。However, changing the location of use of the above-mentioned abrasive material involves the work of peeling and re-adhering it once or attaching and detaching the polishing dish with a screw, which is troublesome. When reattaching only the abrasive material with a surface fastener or the like, it is necessary to align the positions accurately, and if misalignment occurs, it will be reattached, which is an extra task.
【0004】[0004]
【課題を解決するための手段】そこで本発明は、研磨材
の使用箇所の変更を簡単な操作で正確に行えるサンダを
提供するもので、その構成は、モータの出力軸へ、偏心
軸を介してベースを直交状に連結し、そのベースの前記
偏心軸の反対側に、底面に研磨材を装着可能な研磨皿体
を回動自在に設けたサンダであって、ベースに、偏心軸
を軸支するボールベアリングを保持する筒部を突設し、
その筒部を、研磨皿体に穿設され、逆L字状の立設部を
有して筒部との間に空間を形成する透孔に遊挿させると
共に、前記筒部に、筒部よりも大径の鍔部を有するキャ
ップを螺着して、ベースに対して研磨皿体を回動自在且
つ軸方向へ進退動可能に連結する一方、立設部と鍔部と
の間に圧縮スプリングを介装して研磨皿体をベース側へ
付勢し、ベースと研磨皿体との互いの対向面に、研磨皿
体のベース側への前進位置で、且つ回転方向の所定の位
置でのみ互いに係合する係止部を設けたことを特徴とす
るものである。又前記研磨皿体に集塵用の透孔を穿設す
るとともに、前記ベースと前記研磨皿体との間に前記集
塵用の透孔と連通した集塵路を設けたことを特徴とする
ものである。SUMMARY OF THE INVENTION Therefore, the present invention provides a sander capable of accurately changing the location of use of an abrasive material by a simple operation, and its structure is eccentric to the output shaft of a motor.
The bases are connected orthogonally via a shaft, and
A sander in which a polishing dish body capable of mounting abrasives on its bottom surface is rotatably provided on the side opposite to the eccentric shaft, and the eccentric shaft is attached to the base.
The cylindrical part that holds the ball bearing that supports the
The cylindrical portion is pierced in the polishing dish to form an inverted L-shaped standing portion.
When it is loosely inserted into the through hole that has a space between it and the tube
In both cases, the cylinder part has a collar part having a diameter larger than that of the cylinder part.
The polishing dish can be freely rotated with respect to the base
While connecting so that it can move back and forth in the axial direction,
Insert a compression spring between the polishing plate and the polishing plate to the base side.
Energize and place the polishing dish on the opposing surfaces of the base and polishing dish.
At the forward position of the body to the base side and at a predetermined position in the rotation direction
It is characterized in that a locking portion is provided which engages with each other only in a stationary position . Further, a through hole for collecting dust is formed in the polishing dish.
And between the base and the polishing dish.
It is characterized by having a dust collection path communicating with the through hole for dust.
Monodea Ru.
【0005】[0005]
【発明の実施の形態】以下本発明の実施の形態を図面に
基づいて説明する。図1はサンダ1の研磨部分の説明図
で、ハウジング2に内蔵されるモータ(図示せず)のモ
ータ軸3には、ベベルギヤ4が一体に固着され、このベ
ベルギヤ4は、モータ軸3と直交して垂直なクランクシ
ャフト5と一体のベベルギヤ6へ噛合して、モータの回
転がクランクシャフト5へ伝達可能となっている。又ク
ランクシャフト5は、ハウジング2内でボールベアリン
グ7,8によって軸支されると共に、その下端には、バ
ランサ9を一体に固着した偏心軸10が突設されてお
り、この偏心軸10は、略正三角形のベース12中央の
筒部13内へ設けたボールベアリング11によって軸支
されている。更に前記ベース12の上面には、複数のフ
ット14,14が垂直に伸長され、このフット14上端
のプレート14aがハウジング2に抜け止め固定される
ことで、ベース12はハウジング2の下方で支持され、
クランクシャフト5の回転に伴う偏心軸10の偏心回転
により、円軌跡運動(オビタル運動)するものとなる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram of a polishing portion of the sander 1. A bevel gear 4 is integrally fixed to a motor shaft 3 of a motor (not shown) built in the housing 2. The bevel gear 4 is orthogonal to the motor shaft 3. Then, the rotation of the motor can be transmitted to the crankshaft 5 by meshing with a bevel gear 6 integrated with the vertical crankshaft 5. The crankshaft 5 is axially supported by ball bearings 7 and 8 in the housing 2, and an eccentric shaft 10 integrally fixed with a balancer 9 is provided at the lower end of the crankshaft 5 so as to project. It is supported by a ball bearing 11 provided in a cylindrical portion 13 at the center of a base 12 having a substantially equilateral triangle. Further, a plurality of feet 14 and 14 are vertically extended on the upper surface of the base 12, and a plate 14a at the upper end of the foot 14 is fixed to the housing 2 so as to prevent the base 12 from being supported below the housing 2. ,
Due to the eccentric rotation of the eccentric shaft 10 accompanying the rotation of the crankshaft 5, a circular locus motion (orbital motion) is achieved.
【0006】そしてベース12の下方には、ベース12
と同じ正三角形状の研磨皿体15が配置されている。こ
の研磨皿体15は、上側の取付板16と、その取付板の
下面へ一体に取り付けたパット17、及びパット17の
下面へ面ファスナーによって貼着されるサンドペーパー
18とからなり、中央の透孔15aがベース12の筒部
13へ遊挿されて、回動可能に軸支されることとなる。
又取付板16における透孔15a部分は、逆L字状の立
設部19となって筒部13と透孔15aとの間に空間を
形成する一方、筒部13には、前記透孔15aの径より
大径の鍔部21を有したキャップ20が螺着されてお
り、筒部13へ遊挿された研磨皿体15は、前記立設部
19と鍔部21との間で軸方向への進退動が可能となっ
ている。更に立設部19と鍔部21との間には、圧縮ス
プリング22が介装されて、立設部19と共に研磨皿体
15をベース12側へ付勢している。又ベース12の裏
面には、図2にも示す如く、偏心軸中心Oと3つの角部
の頂点とを夫々結ぶ線上で頂点よりに中心を設定した筒
状部23,23,23が突設される一方、研磨皿体15
の取付板16上面には、ベース12と3つの角部が揃っ
た際に前記筒状部23,23,23と嵌合する位置決め
突起24,24,24が突設されている。よって研磨皿
体15は、圧縮スプリング22に抗してベース12の離
反方向へ引っ張ると、各筒状部23と位置決め突起24
とが離反してその状態で任意に回動可能となり、ベース
12と角部を一致させた位置で研磨皿体15を離すと、
研磨皿体15は圧縮スプリング22の付勢でベース側1
2へ移動すると同時に、ベース12裏面の3つの筒状部
23へ夫々取付板16の位置決め突起24が嵌合して、
両者は一体化することとなる。尚25,25・・は、研
磨皿体15に穿設された集塵用の透孔で、図1に示すベ
ース12と研磨皿体15間の集塵路26と連通して、研
磨時の粉塵を外部へ誘導するものである。Below the base 12, the base 12
A polishing dish body 15 having the same equilateral triangle shape as the above is arranged. The polishing dish body 15 includes an upper mounting plate 16, a pad 17 integrally attached to the lower surface of the mounting plate, and a sandpaper 18 attached to the lower surface of the pad 17 by a surface fastener. The hole 15a is loosely inserted into the cylindrical portion 13 of the base 12 and is rotatably supported.
Further, the through hole 15a portion of the mounting plate 16 becomes an inverted L-shaped standing portion 19 to form a space between the tubular portion 13 and the through hole 15a, while the tubular portion 13 has the through hole 15a. A cap 20 having a flange portion 21 having a diameter larger than the diameter is screwed, and the polishing dish body 15 loosely inserted into the cylindrical portion 13 is provided between the upright portion 19 and the flange portion 21 in the axial direction. It is possible to move back and forth. Further, a compression spring 22 is interposed between the upright portion 19 and the collar portion 21 to urge the polishing dish body 15 together with the upright portion 19 toward the base 12 side. Also, as shown in FIG. 2, on the back surface of the base 12, cylindrical portions 23, 23, 23 are provided which have their centers set at the vertices on the lines connecting the eccentric axis center O and the vertices of the three corners. Meanwhile, the polishing dish 15
Positioning projections 24, 24, 24 are provided on the upper surface of the mounting plate 16 so as to be fitted with the cylindrical portions 23, 23, 23 when the three corners are aligned with the base 12. Therefore, when the polishing dish 15 is pulled in the direction away from the base 12 against the compression spring 22, each cylindrical portion 23 and the positioning protrusion 24 are pulled.
Are separated from each other and can be freely rotated in that state, and when the polishing dish body 15 is separated at a position where the corners coincide with the base 12,
The polishing dish 15 is moved to the base side 1 by the biasing force of the compression spring 22.
At the same time as moving to 2, the positioning protrusions 24 of the mounting plate 16 are fitted into the three cylindrical portions 23 on the back surface of the base 12,
Both will be integrated. In addition, reference numerals 25, 25, ... Are through holes for collecting dust formed in the polishing dish body 15, and communicate with the dust collecting path 26 between the base 12 and the polishing dish body 15 shown in FIG. It guides dust to the outside.
【0007】以上の如く構成されたサンダ1において
は、図1の状態では、モータ駆動によりベース12が円
軌跡運動をして、一体に運動する研磨皿体15底面のサ
ンドペーパー18で研磨作業が行えるが、研磨作業でサ
ンドペーパー18の前方(図1,2の左側)の角部が磨
り減った場合、研磨皿体15を把持して下方へ引っ張る
と、図3のように位置決め突起24が夫々筒状部23か
ら離反して研磨皿体15が回動自在となるから、この位
置から図2の矢印で示すように左右どちらかへ120度
回転させ、3つの位置決め突起24を夫々筒状部23に
挿入させるようにして引張力を緩めれば、再び図1のよ
うに3つの位置決め突起24が夫々筒状部23に嵌合し
て両者が一体化し、サンドペーパー18の摩耗のない角
部で研磨作業が行える。この2番目の角部が磨り減った
場合は同様に研磨皿体15を回転させて残りの角部を使
用箇所に変えれば良い。このように本実施例では研磨皿
体15の回転により、サンドペーパー18の使用箇所を
変更可能となるから、サンドペーパーの3つの角部を全
て使用することができ、研磨皿体15側の面ファスナー
の貼着力の劣化も1箇所に集中しなくなる。又この変更
は研磨皿体の簡単な回転操作で済むから、時間や手間が
かからず、良好な作業性で正確に行えるのである。In the sander 1 constructed as described above, in the state shown in FIG. 1, the base 12 moves in a circular locus by the motor drive, and the sandpaper 18 on the bottom surface of the polishing dish body 15 which moves in unison is used for polishing work. Although it can be done, when the front corner (left side of FIGS. 1 and 2) of the sandpaper 18 is worn away by the polishing work, when the polishing dish body 15 is grasped and pulled downward, the positioning protrusion 24 is formed as shown in FIG. Since the polishing dish body 15 is rotatable away from the respective cylindrical portions 23, the three positioning protrusions 24 are rotated by 120 degrees from this position to the right or left as shown by the arrow in FIG. When the pulling force is loosened by inserting it into the portion 23, the three positioning protrusions 24 are again fitted into the tubular portion 23 and integrated with each other as shown in FIG. Part can be used for polishing work . When the second corner is worn out, the polishing dish body 15 may be similarly rotated to change the remaining corner to the place to be used. As described above, in the present embodiment, the use position of the sandpaper 18 can be changed by rotating the polishing dish body 15, so that all three corners of the sandpaper can be used and the surface of the polishing dish body 15 side can be used. Deterioration of the adhesive strength of the fastener is not concentrated in one place. Further, since this change can be performed by a simple rotating operation of the polishing dish, it does not take time or labor and can be accurately performed with good workability.
【0008】尚上記では係止機構に用いる筒状部23を
ベース12側に、位置決め突起24を研磨皿体15側に
設けたが、これを互いに逆にして設けても良く、又筒状
部23、位置決め突起24とも夫々3箇所形成したが、
どちらか一方を1つの角部に1箇所のみ設けても差し支
えない。更に上記筒状部と位置決め突起以外でも、例え
ば定位置で固定されるキャップ20の鍔部21と研磨皿
体15の透孔15aとを正三角形等の形状として、両者
の形状で嵌合させ、研磨皿体15の後退位置では嵌合が
解かれて回転可能とすれば、上記と同様の操作で使用箇
所の変更が行える。In the above description, the cylindrical portion 23 used for the locking mechanism is provided on the base 12 side and the positioning protrusion 24 is provided on the polishing dish body 15 side, but they may be provided in reverse to each other. 23 and the positioning protrusion 24 are formed at three positions respectively,
Either one of them may be provided in one corner only. Further, in addition to the cylindrical portion and the positioning protrusion, for example, the flange portion 21 of the cap 20 fixed at a fixed position and the through hole 15a of the polishing dish body 15 are formed into an equilateral triangle or the like, and fitted in both shapes. In the retracted position of the polishing dish body 15, if the fitting is released and the polishing dish body 15 is rotatable, the use place can be changed by the same operation as described above.
【0009】[0009]
【発明の効果】以上本発明によれば、研磨材ごと研磨皿
体を回転させて所定の位置で係止可能であるから、研磨
材の使用箇所を簡単に変えることができ、手間がかから
ない。又研磨皿体側の面ファスナー等の貼着力の劣化も
抑えることができる。更に所定位置で係止させる係止部
により位置決めも正確に行える。更に研磨皿体に集塵路
と連通した集塵用の透孔が穿設されているため、研磨時
の粉塵を外部へ誘導することができる。 As described above, according to the present invention, since the polishing dish can be rotated together with the polishing material and locked at a predetermined position, it is possible to easily change the location of use of the polishing material, which saves labor. Further, it is possible to suppress deterioration of the attachment force of the surface fastener or the like on the side of the polishing dish. Furthermore, the positioning can be accurately performed by the locking portion that locks at a predetermined position. Furthermore, a dust collecting path is provided on the polishing dish.
Since a through hole for dust collection that communicates with the
The dust of can be guided to the outside.
【図1】サンダの研磨部分の説明図である。FIG. 1 is an explanatory diagram of a polishing portion of a sander.
【図2】研磨皿体の底面説明図である。FIG. 2 is a bottom view of a polishing dish body.
【図3】研磨皿体の回転操作時の説明図である。FIG. 3 is an explanatory diagram at the time of rotating the polishing dish.
1・・サンダ、2・・ハウジング、3・・モータ軸、5
・・クランクシャフト、10・・偏心軸、12・・ベー
ス、15・・研磨皿体、16・・取付板、17・・パッ
ト、18・・サンドペーパー、20・・キャップ、22
・・圧縮スプリング、23・・筒状部、24・・位置決
め突起。1 ... Sanda, 2 ... Housing, 3 ... Motor shaft , 5
..Crankshafts, 10 ... Eccentric shafts, 12 ... Bases, 15 ... Grinding plates, 16..Mounting plates, 17..Pats, 18..Sandpaper, 20..Caps, 22
..Compression springs, 23..cylindrical parts, 24..Positioning protrusions
Claims (2)
スを直交状に連結し、そのベースの前記偏心軸の反対側
に、底面に研磨材を装着可能な研磨皿体を回動自在に設
けたサンダであって、 ベースに、偏心軸を軸支するボールベアリングを保持す
る筒部を突設し、その筒部を、研磨皿体に穿設され、逆
L字状の立設部を有して筒部との間に空間を形成する透
孔に遊挿させると共に、前記筒部に、筒部よりも大径の
鍔部を有するキャップを螺着して、ベースに対して研磨
皿体を回動自在且つ軸方向へ進退動可能に連結する一
方、立設部と鍔部との間に圧縮スプリングを介装して研
磨皿体をベース側へ付勢し、ベースと研磨皿体との互い
の対向面に、研磨皿体のベース側への前進位置で、且つ
回転方向の所定の位置でのみ互いに係合する係止部を設
けたことを特徴とする サンダ。1. A polishing dish body, on which a polishing material can be mounted on a bottom surface, is freely rotatable on a side opposite to the eccentric shaft of the base, the base being orthogonally connected to an output shaft of a motor through an eccentric shaft. It is a sander provided on the base and holds a ball bearing that supports the eccentric shaft on the base.
A cylindrical part that protrudes, and the cylindrical part is pierced in the polishing dish.
A transparent member that has an L-shaped standing portion and forms a space with the tubular portion.
It is loosely inserted into the hole and is
A cap with a collar is screwed on and the base is ground
One that connects the plate body so that it can rotate and can move back and forth in the axial direction.
In addition, a compression spring is installed between the upright part and the collar part for grinding.
Bias the polishing plate toward the base so that the base and polishing plate
On the opposite surface of the polishing plate at the forward position to the base side of the polishing dish, and
A locking part is provided that engages with each other only at a predetermined position in the rotation direction.
Thunder, which is characterized by being struck.
とともに、前記ベースと前記研磨皿体との間に前記集塵
用の透孔と連通した集塵路を設けたことを特徴とする請
求項1に記載のサンダ。2. A through hole for collecting dust is formed in the polishing dish.
Along with the dust collection between the base and the polishing dish
The sander according to claim 1, characterized in that a dust collecting passage communicating with a through hole for use is provided .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16998695A JP3502194B2 (en) | 1995-07-05 | 1995-07-05 | Sanda |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16998695A JP3502194B2 (en) | 1995-07-05 | 1995-07-05 | Sanda |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0919860A JPH0919860A (en) | 1997-01-21 |
JP3502194B2 true JP3502194B2 (en) | 2004-03-02 |
Family
ID=15896484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16998695A Expired - Fee Related JP3502194B2 (en) | 1995-07-05 | 1995-07-05 | Sanda |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3502194B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4866569B2 (en) | 2005-05-27 | 2012-02-01 | 日東工器株式会社 | Polishing tool |
KR102545180B1 (en) * | 2021-05-11 | 2023-06-20 | 주식회사 디어포스 | A multi-hole abrasive disck and a pad assembly |
KR102570519B1 (en) * | 2021-05-11 | 2023-08-25 | 주식회사 디어포스 | A high compatible abraive pad assembly |
-
1995
- 1995-07-05 JP JP16998695A patent/JP3502194B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0919860A (en) | 1997-01-21 |
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