JP2001328053A - Sanding machine - Google Patents
Sanding machineInfo
- Publication number
- JP2001328053A JP2001328053A JP2000148731A JP2000148731A JP2001328053A JP 2001328053 A JP2001328053 A JP 2001328053A JP 2000148731 A JP2000148731 A JP 2000148731A JP 2000148731 A JP2000148731 A JP 2000148731A JP 2001328053 A JP2001328053 A JP 2001328053A
- Authority
- JP
- Japan
- Prior art keywords
- closing member
- connecting shaft
- base
- sealing
- bearing retainer
- 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.)
- Granted
Links
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Sealing Devices (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、本体ハウジングの
下方に形成した開口から偏心運動する連結軸を突設し、
その連結軸にベースを連結したサンダに関する。BACKGROUND OF THE INVENTION The present invention relates to a connecting shaft which eccentrically moves from an opening formed below a main body housing.
The present invention relates to a sander having a base connected to the connection shaft.
【0002】[0002]
【従来の技術】従来のサンダを図3に示す。サンダ40
は、本体ハウジング41内に、モータの出力軸42と噛
合して回転するスピンドル43を下向きに軸支し、スピ
ンドル43の下方に形成した連結軸44を、本体ハウジ
ング41下方の開口45から突出させて、先端にベース
46を連結している。又、連結軸44には、ボールベア
リング47,47を介してサンギヤ48が外装される一
方、開口45内には、サンギヤ48が遊挿して噛合する
インターナルギヤ49がボールベアリング50を介して
軸支されている。よって、モータの駆動に伴いスピンド
ル43が回転すると、連結軸44が偏心運動し、連結軸
44と一体に偏心運動するサンギヤ48がインターナル
ギヤ49の内周と噛み合うことで、連結軸44が自転
し、ベース46及びベース46の下面へ一体に連結され
る研磨ディスク51にオービタル運動(回転運動+偏心
運動)を行わせることになる。2. Description of the Related Art A conventional sander is shown in FIG. Thunder 40
A spindle 43 that rotates in mesh with an output shaft 42 of the motor is supported downward in the main body housing 41, and a connecting shaft 44 formed below the spindle 43 projects from an opening 45 below the main body housing 41. The base 46 is connected to the tip. A sun gear 48 is externally mounted on the connection shaft 44 via ball bearings 47, 47, while an internal gear 49 into which the sun gear 48 is loosely inserted and meshes is provided in the opening 45 via the ball bearing 50. Supported. Therefore, when the spindle 43 rotates with the driving of the motor, the connecting shaft 44 eccentrically moves, and the sun gear 48 eccentrically moving integrally with the connecting shaft 44 meshes with the inner periphery of the internal gear 49, so that the connecting shaft 44 rotates by itself. Then, the base 46 and the polishing disk 51 integrally connected to the lower surface of the base 46 are caused to perform orbital motion (rotational motion + eccentric motion).
【0003】52は、開口45を塞ぐ格好で本体ハウジ
ング41にネジ止めされてボールベアリング50を位置
決めする皿状のベアリングリテーナで、中央に形成され
た連結軸44の遊挿孔53の内周縁には、筒状のシール
部材54の上端が連結されている。このシール部材54
は、下端をベース46の上面に当接させて、本体ハウジ
ング41の下方で開口45の周囲に形成される集塵路5
5をベアリングリテーナ52の内側とシールして、ベー
ス46及び研磨ディスク51に穿設した集塵孔56,5
6・・から集塵路55に導かれる粉塵が本体ハウジング
41の内部に侵入するのを防止するものである。[0005] Reference numeral 52 denotes a plate-shaped bearing retainer which is screwed to the main body housing 41 so as to close the opening 45 and positions the ball bearing 50. Is connected to the upper end of a cylindrical seal member 54. This sealing member 54
The dust collection path 5 formed around the opening 45 below the main body housing 41 with its lower end in contact with the upper surface of the base 46.
5 is sealed with the inside of the bearing retainer 52, and the dust collecting holes 56 and 5 formed in the base 46 and the polishing disk 51 are sealed.
6 prevents dust from being guided to the dust collection path 55 from entering the inside of the main body housing 41.
【0004】[0004]
【発明が解決しようとする課題】上記シール部材54
は、接触するベース46上面の状態や寸法公差等によ
り、ベース46に対するシール部材54の接触状態にば
らつきが生じ、強く当たりすぎるとシール性は確保でき
ても摩耗が促進されて耐久性が低下し、弱く当たりすぎ
ると耐久性で有利となるもののシール効果が低下してし
まう。一方、ベース46には、シール部材54を摺接さ
せる平坦面57が必要となるため、ベース46の形状に
制約を受けることにもなる。The above-mentioned sealing member 54
The contact state of the seal member 54 with the base 46 varies depending on the state of the upper surface of the base 46, the dimensional tolerance, and the like, and if the contact force is too strong, the abrasion is promoted and the durability is reduced even if the sealing property can be secured. On the other hand, if the contact force is too weak, the sealing effect is reduced although the durability is advantageous. On the other hand, since the base 46 requires a flat surface 57 for slidingly contacting the seal member 54, the shape of the base 46 is restricted.
【0005】そこで、請求項1に記載の発明は、ベース
の状態や寸法公差等にかかわらず、常に良好なシール性
と耐久性とを維持できるサンダを提供することを目的と
したものである。Accordingly, an object of the present invention is to provide a sander which can always maintain good sealing performance and durability irrespective of the state of the base and dimensional tolerance.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、請求項1に記載の発明は、本体ハウジングの下方
に、連結軸が遊挿し連結軸の偏心運動と干渉しない範囲
で開口を閉塞可能な第1閉塞部材を、連結軸と直交状に
設ける一方、連結軸に、第1閉塞部材における連結軸の
遊挿孔より大きい第2閉塞部材を、第1閉塞部材と非接
触で連結軸と直交状に設け、第1閉塞部材と第2閉塞部
材との間に、第1閉塞部材と第2閉塞部材との何れか一
方の対向面に固着され、偏心運動の際には他方の対向面
と摺接して開口をシール可能なシール部材を設けたこと
を特徴とするものである。請求項2に記載の発明は、請
求項1の目的に加えて、適正なシール部材を簡単に得る
ために、シール部材をリング状のスポンジとしたもので
ある。In order to achieve the above object, according to the first aspect of the present invention, the opening is closed below the main body housing in a range where the connecting shaft is loosely inserted and does not interfere with the eccentric movement of the connecting shaft. A possible first closing member is provided orthogonal to the connecting shaft, and a second closing member larger than the play hole of the connecting shaft in the first closing member is provided on the connecting shaft in a non-contact manner with the first closing member. The first closing member and the second closing member are fixed to one of the opposing surfaces of the first closing member and the second closing member between the first closing member and the second closing member. A seal member is provided, which is capable of sealing the opening by sliding contact with the surface. According to the second aspect of the present invention, in addition to the object of the first aspect, in order to easily obtain an appropriate seal member, the seal member is a ring-shaped sponge.
【0007】[0007]
【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、ランダムオービットサン
ダ(以下「サンダ」という。)の一部縦断面図で、サン
ダ1の本体ハウジング2は、上下に分割される上ハウジ
ング4と下ハウジング5とを組み付けてなる金属製の第
1ハウジング3と、第1ハウジング3の前面(図1の左
側を前方として説明する。)から被着される合成樹脂製
の第2ハウジング6とからなる。第1ハウジング3内に
は、本体ハウジング2後方の図示しないモータハウジン
グ内に内蔵されたモータの出力軸7が突出し、先端に第
1ベベルギヤ8を一体に固着している。この第1ベベル
ギヤ8は、第1ハウジング3内でボールベアリング9,
10によって上下方向に軸支されるスピンドル11と一
体の第2ベベルギヤ12と噛合し、出力軸7の回転をス
ピンドル11へ伝達可能としている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial longitudinal sectional view of a random orbit sander (hereinafter referred to as “sander”). A main housing 2 of the sander 1 is made of a metal obtained by assembling an upper housing 4 and a lower housing 5 which are vertically divided. And a second housing 6 made of synthetic resin and attached from the front surface of the first housing 3 (the left side in FIG. 1 will be described as the front). In the first housing 3, an output shaft 7 of a motor built in a motor housing (not shown) behind the main body housing 2 protrudes, and a first bevel gear 8 is integrally fixed to a tip end. The first bevel gear 8 has a ball bearing 9,
The shaft 10 meshes with a second bevel gear 12 integral with a spindle 11 that is vertically supported by the shaft 10 so that the rotation of the output shaft 7 can be transmitted to the spindle 11.
【0008】スピンドル11の下端には、回転中心から
偏心した偏心軸13が突設され、偏心軸13には、スリ
ーブ14が一体に嵌着されて、スリーブ14に、ボール
ベアリング15,15を介して連結軸16が同軸で外装
されている。この連結軸16の下端には、ボルト17に
よってベース18が直交状に連結され、ベース18の下
面に研磨ディスク19が固定されている。20,21
は、スピンドル11の上下へ一体に連結されたバランス
ウエイトである。又、連結軸16の外周には、歯23,
23・・を周設したサンギヤ22が一体に嵌着される一
方、サンギヤ22の更に外周で下ハウジング5の下方の
開口24には、サンギヤ22より大径のインターナルギ
ヤ25がボールベアリング26を介してスピンドル11
と同軸に軸支されて、インターナルギヤ25の内周に形
成された歯27,27・・に、サンギヤ22の一部の歯
23が噛合している。尚、下ハウジング5には、図示し
ない操作ツマミによって出没可能なストッパピンが設け
られており、このストッパピンをインターナルギヤ25
の外周と係脱させることで、インターナルギヤ25の回
転のロックと解除とが任意に可能となっている。An eccentric shaft 13 eccentric from the center of rotation is projected from the lower end of the spindle 11, and a sleeve 14 is integrally fitted to the eccentric shaft 13 via ball bearings 15, 15 on the sleeve 14. The connecting shaft 16 is coaxially provided. A base 18 is orthogonally connected to a lower end of the connecting shaft 16 by a bolt 17, and a polishing disk 19 is fixed to a lower surface of the base 18. 20, 21
Is a balance weight integrally connected to the upper and lower sides of the spindle 11. Also, teeth 23,
The sun gear 22 surrounding the sun gear 22 is integrally fitted, while an internal gear 25 having a larger diameter than the sun gear 22 has a ball bearing 26 in an opening 24 below the lower housing 5 further on the outer periphery of the sun gear 22. Through the spindle 11
The teeth 23 of the sun gear 22 mesh with the teeth 27 formed on the inner periphery of the internal gear 25. The lower housing 5 is provided with a stopper pin which can be protruded and retracted by an operation knob (not shown).
The rotation of the internal gear 25 can be arbitrarily locked and released by engaging and disengaging the outer periphery of the internal gear 25.
【0009】一方、下ハウジング5の開口24には、第
1閉塞部材として、皿状のベアリングリテーナ28の外
周のフランジ部29がネジ止めされて、下ハウジング5
におけるボールベアリング26を位置決めしている。連
結軸16は、ベアリングリテーナ28における底部30
の中央に穿設された遊挿孔31(連結軸16のオービタ
ル運動に干渉しない径で穿設される。)を遊挿してベー
ス18を連結する格好となっている。又、連結軸16に
おけるベアリングリテーナ28の底部30より上方位置
には、第2閉塞部材として円形の鉄板32が連結軸16
と直交状に外嵌される。この鉄板32は、図2にも示す
ように、ベアリングリテーナ28の遊挿孔31より大径
に形成され、連結軸16の軸方向でベアリングリテーナ
28の底部30と非接触で重合する。そして、ベアリン
グリテーナ28の底部30上には、シール部材としての
スポンジ33が接着されている。このスポンジ33は、
内周円が遊挿孔31と同径となり、外周円が底部30と
略同径となる断面長方形のリング状を呈して、遊挿孔3
1と同心で配置され、その上面を底部30の対向面とな
る鉄板32の下面に当接させるもので、連結軸16のオ
ービタル運動にかかわらず、常に鉄板32との摺接が維
持可能となっている。On the other hand, a flange 29 on the outer periphery of a dish-shaped bearing retainer 28 is screwed into the opening 24 of the lower housing 5 as a first closing member.
Are positioned. The connecting shaft 16 is connected to the bottom 30 of the bearing retainer 28.
The base 18 is connected by loosely inserting a play insertion hole 31 (drilled so as not to interfere with the orbital movement of the connection shaft 16) formed at the center of the base. A circular iron plate 32 serving as a second closing member is provided at a position above the bottom 30 of the bearing retainer 28 on the connection shaft 16.
Is fitted outside at right angles. As shown in FIG. 2, the iron plate 32 is formed to have a larger diameter than the play insertion hole 31 of the bearing retainer 28, and overlaps the bottom 30 of the bearing retainer 28 in the axial direction of the connection shaft 16 without contact. A sponge 33 as a seal member is adhered on the bottom 30 of the bearing retainer 28. This sponge 33
The inner circumference circle has the same diameter as the play insertion hole 31, and the outer circumference circle has a rectangular cross-sectional shape having the same diameter as the bottom portion 30.
1, and the upper surface thereof is brought into contact with the lower surface of the iron plate 32 which is the facing surface of the bottom portion 30, so that the sliding contact with the iron plate 32 can always be maintained regardless of the orbital movement of the connecting shaft 16. ing.
【0010】一方、ベース18及び研磨ディスク19に
は、両者を上下に貫通する集塵孔34,34・・が穿設
されて、下ハウジング5の下方で開口24の外周に凹設
される集塵路35と連通している。この集塵路35は、
下ハウジング5に突設された集塵筒36と連通し、集塵
筒36に集塵機等を連結することで、粉塵を集塵孔3
4,34を介して集塵路35内に導き、集塵筒36を介
して下ハウジング5の外部へ排出可能となっている。
又、下ハウジング5における集塵路35の外周には、下
端をベース18の上面に近接させる仕切板37が周設さ
れて、集塵路35を下ハウジング5の外側と区画してい
る。よって、集塵路35は、下ハウジング5の内部側で
は、開口24を閉塞するベアリングリテーナ28と鉄板
32、スポンジ33によって仕切られ、下ハウジング5
の外部側では、仕切板37により仕切られることにな
る。On the other hand, the base 18 and the polishing disk 19 are provided with dust collecting holes 34, 34. It communicates with the dust path 35. This dust collection path 35
By communicating with a dust collecting tube 36 protruding from the lower housing 5 and connecting a dust collector or the like to the dust collecting tube 36, dust can be collected from the dust collecting holes 3.
4 and 34, and can be guided to the inside of the dust collection path 35 and discharged to the outside of the lower housing 5 through the dust collection tube 36.
A partition plate 37 having a lower end close to the upper surface of the base 18 is provided around the outer periphery of the dust collection path 35 in the lower housing 5, thereby dividing the dust collection path 35 from the outside of the lower housing 5. Therefore, on the inner side of the lower housing 5, the dust collection path 35 is partitioned by the bearing retainer 28 that closes the opening 24, the iron plate 32, and the sponge 33.
Is partitioned by a partition plate 37 on the outside side of.
【0011】以上の如く構成されたサンダ1は、インタ
ーナルギヤ25の回転をロックした状態で図示しないモ
ータを駆動させると、出力軸7の回転に伴い第1ベベル
ギヤ8と第2ベベルギヤ12との噛合によってスピンド
ル11が回転し、その下端の偏心軸13と、偏心軸13
を軸支する連結軸16とを公転、即ち偏心運動させ、連
結軸16下端のベース18及び研磨ディスク19を偏心
運動させる。ここで、連結軸16と一体に偏心運動する
サンギヤ22の歯23,23・・が、回転しないインタ
ーナルギヤ25の歯27,27・・と噛み合うことによ
り、連結軸16に自転、即ち回転運動が強制的に発生
し、ベース18及び研磨ディスク19を同様に回転運動
させる。よって、ベース18及び研磨ディスク19は回
転運動+偏心運動のオービタル運動を行うことになり、
作業者は、サンダ1を支えて研磨ディスク19をワーク
に押し当てて研磨を行うことができる。このオービタル
運動の際、連結軸16と一体の鉄板32も同時にオービ
タル運動を行うが、その下面は常に下ハウジング5に固
定されるベアリングリテーナ28上のスポンジ33に摺
接するため、開口24は好適にシールされ、研磨作業時
に発生する粉塵が集塵孔34,34から集塵路35を通
る際に下ハウジング5の内部に侵入するおそれがない。When the motor (not shown) is driven in a state where the rotation of the internal gear 25 is locked, the sander 1 having the above-described configuration allows the first bevel gear 8 and the second bevel gear 12 to rotate with the rotation of the output shaft 7. The engagement causes the spindle 11 to rotate, and the eccentric shaft 13 at the lower end thereof and the eccentric shaft 13
Is revolved, i.e., eccentrically, with the connecting shaft 16 that supports the shaft, and the base 18 and the polishing disk 19 at the lower end of the connecting shaft 16 are eccentrically moved. Here, the teeth 23 of the sun gear 22 that eccentrically move with the connecting shaft 16 mesh with the teeth 27 of the internal gear 25 that does not rotate. Is generated, causing the base 18 and the polishing disk 19 to rotate similarly. Therefore, the base 18 and the polishing disk 19 perform the orbital motion of the rotational motion and the eccentric motion,
An operator can support the sander 1 and press the polishing disk 19 against the work to perform polishing. During this orbital movement, the iron plate 32 integral with the connecting shaft 16 also performs the orbital movement at the same time, but the lower surface thereof is always in sliding contact with the sponge 33 on the bearing retainer 28 fixed to the lower housing 5, so that the opening 24 is preferably formed. It is sealed, and there is no possibility that dust generated during the polishing operation enters the inside of the lower housing 5 when passing through the dust collection passage 35 from the dust collection holes 34.
【0012】このように上記形態によれば、下ハウジン
グ5の内部側のシールを、下ハウジング5側のベアリン
グリテーナ28と連結軸16側の鉄板32と、両者の間
に介在させたスポンジ33とによって行うようにしたこ
とで、ベース18側と何ら関わりなく開口24のシール
が可能となり、寸法公差やベース18上面の状態等によ
ってシール性がばらついたり摩耗が生じたりすることが
なく、安定したシール性と耐久性とを得ることができ
る。又、ベース18では、シール部材を摺接させる平坦
面等が必要なくなるため、ベース18の形状に制約を受
けたりすることもない。又、シール部材はサンドイッチ
状に挟み込むだけであり、シール面積も広く確保できる
ため、シール部材としては単にリング状で安価な材質の
スポンジ33を利用することで足り、従来の特殊なスリ
ーブ状で高価な材質のシール部材を用いることなく、適
正なシール部材を簡単に得ることができる。As described above, according to the above embodiment, the seal on the inner side of the lower housing 5 is formed by the bearing retainer 28 on the lower housing 5 side, the iron plate 32 on the connecting shaft 16 side, and the sponge 33 interposed therebetween. By doing so, it is possible to seal the opening 24 irrespective of the base 18 side, and the sealing performance is not varied or abraded due to dimensional tolerances, the state of the upper surface of the base 18 and the like, and a stable sealing is achieved. Properties and durability can be obtained. Further, since the base 18 does not require a flat surface or the like for slidingly contacting the seal member, the shape of the base 18 is not restricted. In addition, since the sealing member is merely sandwiched in a sandwich shape and a large sealing area can be secured, it is sufficient to simply use a sponge 33 made of a ring-shaped and inexpensive material as the sealing member. An appropriate seal member can be easily obtained without using a seal member made of a suitable material.
【0013】尚、上記形態では、鉄板32がベアリング
リテーナ28の底部30の上方に位置しているが、これ
と逆であっても良いし、スポンジ33も底部30側でな
く鉄板32側に接着しても差し支えない。又、シール部
材としては、上記スポンジ33以外に、ゴムやフェルト
等の他の材質のものを利用することができる。更に、ス
ポンジ等のシール部材の形状も、第1閉塞部材と第2閉
塞部材との間でシール可能であれば上記形態に限定しな
いが、上記形態のように第1閉塞部材又は第2閉塞部材
との摺接面を半径方向に連続させる構成とすれば、第1
閉塞部材又は第2閉塞部材のオービタル運動を阻害する
ことがなく、好ましい形態となる。In the above embodiment, the iron plate 32 is located above the bottom 30 of the bearing retainer 28. However, the reverse is also possible, and the sponge 33 is bonded not to the bottom 30 but to the iron plate 32. No problem. In addition to the sponge 33, other materials such as rubber and felt can be used as the seal member. Furthermore, the shape of the sealing member such as a sponge is not limited to the above-described embodiment as long as it can be sealed between the first closing member and the second closing member, but the first closing member or the second closing member as in the above-described embodiment. If the sliding contact surface is continuously formed in the radial direction, the first
This is a preferable mode without obstructing the orbital movement of the closing member or the second closing member.
【0014】[0014]
【発明の効果】請求項1に記載の発明によれば、前記第
1閉塞部材と第2閉塞部材及びシール部材を用いて本体
ハウジングの開口をシール可能としたことで、ベース側
と何ら関わりなく開口のシールが可能となり、寸法公差
やベース上面の状態等によってシール性がばらついたり
摩耗が生じたりすることがなく、安定したシール性と耐
久性とを得ることができる。又、ベースには、シール部
材を摺接させる平坦面等が必要なくなるため、ベースの
形状に制約を受けたりすることもない。更に、シール部
材はサンドイッチ状に挟み込むだけであり、シール面積
も広く確保できるため、従来の特殊なスリーブ状で高価
な材質のシール部材を用いる必要がなくなり、単純な形
状で安価なシール部材を用いれば足りる。請求項2に記
載の発明によれば、請求項1の効果に加えて、シール部
材をリング状のスポンジとしたことで、安価で適正なシ
ール部材を簡単に得ることができる。According to the first aspect of the present invention, the opening of the main body housing can be sealed by using the first closing member, the second closing member, and the sealing member, thereby irrespective of the base side. The opening can be sealed, and the sealing property does not vary or wear occurs due to the dimensional tolerance, the state of the upper surface of the base, and the like, and stable sealing property and durability can be obtained. In addition, since the base does not require a flat surface or the like for slidingly contacting the seal member, the shape of the base is not restricted. Furthermore, since the sealing member is merely sandwiched in a sandwich shape and a large sealing area can be secured, there is no need to use a conventional special sleeve-shaped sealing member of an expensive material, and a simple shape and inexpensive sealing member can be used. Is enough. According to the second aspect of the present invention, in addition to the effect of the first aspect, by using a ring-shaped sponge for the seal member, an inexpensive and appropriate seal member can be easily obtained.
【図1】サンダの一部縦断面図である。FIG. 1 is a partial longitudinal sectional view of a sander.
【図2】ベアリングリテーナの下面側から上方を見た説
明図である。FIG. 2 is an explanatory view of the bearing retainer as viewed from above from the lower surface side.
【図3】従来のサンダの一部縦断面図である。FIG. 3 is a partial vertical sectional view of a conventional sander.
1・・サンダ、2・・本体ハウジング、3・・第1ハウ
ジング、4・・上ハウジング、5・・下ハウジング、1
1・・スピンドル、13・・偏心軸、16・・連結軸、
18・・ベース、19・・研磨ディスク、25・・イン
ターナルギヤ、28・・ベアリングリテーナ、32・・
鉄板、33・・スポンジ、35・・集塵路。1. Sander, 2. Body housing, 3. First housing, 4. Upper housing, 5. Lower housing, 1
1 ··· spindle, 13 · · · eccentric shaft, 16 · · · connecting shaft,
18 ・ ・ base 、 19 ・ ・ polishing disc 、 25 ・ ・ internal gear 、 28 ・ bearing retainer 、 32 ・ ・
Iron plate, 33 ... sponge, 35 ... dust collection path.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 蜷川 諭 愛知県安城市住吉町3丁目11番8号 株式 会社マキタ内 Fターム(参考) 3C034 AA08 AA15 BB02 BB26 BB87 3C058 AA02 AC05 CB06 3J043 AA17 CA20 CB13 DA02 DA05 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Satoshi Ninagawa 3-11-8 Sumiyoshi-cho, Anjo-shi, Aichi F-term in Makita Co., Ltd. (reference) 3C034 AA08 AA15 BB02 BB26 BB87 3C058 AA02 AC05 CB06 3J043 AA17 CA20 CB13 DA02 DA05
Claims (2)
ら偏心運動する連結軸を突設し、その連結軸にベースを
連結してなるサンダであって、 前記本体ハウジングの下方に、前記連結軸が遊挿し前記
連結軸の偏心運動と干渉しない範囲で前記開口を閉塞可
能な第1閉塞部材を、前記連結軸と直交状に設ける一
方、前記連結軸に、前記第1閉塞部材における前記連結
軸の遊挿孔より大きい第2閉塞部材を、前記第1閉塞部
材と非接触で前記連結軸と直交状に設け、前記第1閉塞
部材と第2閉塞部材との間に、前記第1閉塞部材と第2
閉塞部材との何れか一方の対向面に固着され、前記偏心
運動の際には他方の対向面と摺接して前記開口をシール
可能なシール部材を設けたことを特徴とするサンダ。1. A sander having a connecting shaft projecting eccentrically from an opening formed below a main body housing and connecting a base to the connecting shaft, wherein the connecting shaft is provided below the main body housing. A first closing member capable of closing the opening in a range that does not interfere with the eccentric movement of the connecting shaft by loose insertion is provided orthogonal to the connecting shaft, while the connecting shaft is provided with the first closing member of the connecting shaft in the first closing member. A second closing member larger than the play insertion hole is provided in a non-contact manner with the first closing member and perpendicular to the connection shaft, and the first closing member and the second closing member are provided between the first closing member and the second closing member. Second
A sander fixed to one of the opposing surfaces with a closing member, and provided with a sealing member capable of sealing the opening by slidingly contacting the other opposing surface during the eccentric movement.
請求項1に記載のサンダ。2. The sander according to claim 1, wherein the sealing member is a ring-shaped sponge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000148731A JP3731802B2 (en) | 2000-05-19 | 2000-05-19 | Sanda |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000148731A JP3731802B2 (en) | 2000-05-19 | 2000-05-19 | Sanda |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001328053A true JP2001328053A (en) | 2001-11-27 |
JP3731802B2 JP3731802B2 (en) | 2006-01-05 |
Family
ID=18654707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2000148731A Expired - Fee Related JP3731802B2 (en) | 2000-05-19 | 2000-05-19 | Sanda |
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JP (1) | JP3731802B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007152525A (en) * | 2005-12-07 | 2007-06-21 | Makita Corp | Grinder |
JP2007223034A (en) * | 2006-02-23 | 2007-09-06 | Oy Kwh Mirka Ab | Oscillating grinding machine |
JP2011062770A (en) * | 2009-09-16 | 2011-03-31 | Hitachi Koki Co Ltd | Power tool |
KR101087751B1 (en) | 2009-04-06 | 2011-11-30 | 주식회사 디어포스 | Grinding Disc for Grinder with Dust Collecting Function |
CN103846766A (en) * | 2012-11-28 | 2014-06-11 | 苏州宝时得电动工具有限公司 | Double disc round sander |
JP2016140948A (en) * | 2015-02-02 | 2016-08-08 | 株式会社マキタ | Working tool |
JP6216023B1 (en) * | 2016-11-10 | 2017-10-18 | 省吾 大石 | Railroad model train for rail cleaning |
DE10357836B4 (en) * | 2003-10-10 | 2021-06-24 | Robert Bosch Gmbh | Eccentric hand machine tool |
-
2000
- 2000-05-19 JP JP2000148731A patent/JP3731802B2/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10357836B4 (en) * | 2003-10-10 | 2021-06-24 | Robert Bosch Gmbh | Eccentric hand machine tool |
JP2007152525A (en) * | 2005-12-07 | 2007-06-21 | Makita Corp | Grinder |
JP4708989B2 (en) * | 2005-12-07 | 2011-06-22 | 株式会社マキタ | Grinder |
JP2007223034A (en) * | 2006-02-23 | 2007-09-06 | Oy Kwh Mirka Ab | Oscillating grinding machine |
KR101087751B1 (en) | 2009-04-06 | 2011-11-30 | 주식회사 디어포스 | Grinding Disc for Grinder with Dust Collecting Function |
JP2011062770A (en) * | 2009-09-16 | 2011-03-31 | Hitachi Koki Co Ltd | Power tool |
CN103846766A (en) * | 2012-11-28 | 2014-06-11 | 苏州宝时得电动工具有限公司 | Double disc round sander |
JP2016140948A (en) * | 2015-02-02 | 2016-08-08 | 株式会社マキタ | Working tool |
US10058926B2 (en) | 2015-02-02 | 2018-08-28 | Makita Corporation | Power tool |
JP6216023B1 (en) * | 2016-11-10 | 2017-10-18 | 省吾 大石 | Railroad model train for rail cleaning |
JP2018075241A (en) * | 2016-11-10 | 2018-05-17 | 省吾 大石 | Model train for cleaning rail |
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JP3731802B2 (en) | 2006-01-05 |
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