JP3022391B2 - Dust absorption type grinding machine - Google Patents
Dust absorption type grinding machineInfo
- Publication number
- JP3022391B2 JP3022391B2 JP9097933A JP9793397A JP3022391B2 JP 3022391 B2 JP3022391 B2 JP 3022391B2 JP 9097933 A JP9097933 A JP 9097933A JP 9793397 A JP9793397 A JP 9793397A JP 3022391 B2 JP3022391 B2 JP 3022391B2
- Authority
- JP
- Japan
- Prior art keywords
- dust
- cover
- main body
- rotary blade
- scattering prevention
- 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
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コンクリート構造
物、建物の外壁等に付着している塗膜や接着剤の除去、
素地調整等に用いる吸塵式研削機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the removal of paint films and adhesives adhering to concrete structures, building exterior walls, etc.
The present invention relates to a dust-absorbing grinder used for substrate adjustment and the like.
【０００２】[0002]
【従来の技術】コンクリート構造物、建物の外壁等に付
着している塗膜や接着剤の除去、素地調整等に回転刃式
の研削機が普及している。この回転刃式の研削機は研削
効率のよいことは認められるが、このとき発生する研掃
時の粉塵が周囲に飛散し、環境の悪化をもたらす。2. Description of the Related Art Rotary blade grinders are widely used for removing coatings and adhesives adhering to concrete structures, building outer walls, and the like, adjusting the base material, and the like. Although it is recognized that this rotary blade type grinding machine has good grinding efficiency, dust generated at the time of the polishing is scattered to the surroundings, thereby deteriorating the environment.
【０００３】そこで、粉塵防止対策として吸塵式の研削
機が提案され普及している。この吸塵式研削機は、図９
に示すように、本体１に接続されている回転刃２に粉塵
飛散防止カバー３を被せ、研掃時の粉塵を、粉塵飛散防
止カバー３の外へ出さないようにするとともに、粉塵飛
散防止カバー３に接続された吸引パイプ６を介して図示
してないが吸引装置（集塵機等）へと吸引させるように
なっている。なお必要により、被研掃体Ａと粉塵飛散防
止カバー３との間の減圧状態を避けるため、粉塵飛散防
止カバー３の下端にブラシ等が取り付けられ粉塵飛散防
止カバー３の下端が直接被研掃体に接しないようにして
あるものもある。[0003] Therefore, dust-absorbing grinders have been proposed and spread as dust prevention measures. This dust-absorbing grinder is shown in FIG.
As shown in FIG. 2, a dust scatter prevention cover 3 is put on the rotary blade 2 connected to the main body 1 so that dust during the blasting does not go out of the dust scatter prevention cover 3 and a dust scatter prevention cover is provided. Although not shown in the drawing, a suction device (e.g., a dust collector) sucks the gas through a suction pipe 6 connected to 3. If necessary, a brush or the like is attached to the lower end of the dust scattering prevention cover 3 so that the lower end of the dust scattering prevention cover 3 directly Some are kept out of contact with the body.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、この吸
塵式研削機においても解決しなければならない課題があ
る。However, there is a problem to be solved in this dust-absorbing grinding machine.
【０００５】この吸塵式研削機においては、粉塵飛散防
止カバー３は、本体１にしっかりと固定されており、本
体１との間に角度についての自由度を有さないため、研
掃中に本体を傾ける必要が生じたとき、図９により明ら
かなとおり粉塵飛散防止カバー３と被研掃体との間に隙
間が生じ、その隙間から粉塵が飛散することになる。In this dust-absorbing grinding machine, the dust scattering prevention cover 3 is firmly fixed to the main body 1 and has no degree of freedom between itself and the main body 1, so that the dust When it is necessary to incline the dust, as is apparent from FIG. 9, a gap is formed between the dust scattering prevention cover 3 and the object to be polished, and the dust is scattered from the gap.
【０００６】そこで、本発明者は、まず、本体を傾けて
も粉塵飛散防止カバー３が被研掃体との間に隙間を生じ
ないようにする構造を考えた。Therefore, the present inventor has first considered a structure in which the dust scattering prevention cover 3 does not form a gap between the dust scattering prevention cover 3 and the object to be cleaned even when the main body is tilted.
【０００７】具体的には、図１０に示すように粉塵飛散
防止カバー３の上部を自由変形部４とすることである。
この自由変形部４は、蛇腹、スプリング、ゴム板等で伸
縮融通性のある部材が使用される。こうすることによ
り、図１０より明らかなように本体１を傾けると、回転
刃２は一緒に傾くが、粉塵飛散防止カバー３は上部が伸
縮して本体１の角度を自由に変化させることができるの
で、吸引作用により、下端部は、被研掃体Ａから離れる
ことはない。More specifically, as shown in FIG. 10, the upper part of the dust scattering prevention cover 3 is formed as a free deformation part 4.
The free deformable portion 4 is made of a flexible member such as a bellows, a spring, a rubber plate, or the like. By doing so, when the main body 1 is tilted as is clear from FIG. 10, the rotary blade 2 tilts together, but the upper part of the dust scattering prevention cover 3 expands and contracts, and the angle of the main body 1 can be freely changed. Therefore, the lower end does not separate from the object A due to the suction action.
【０００８】このようにして上記課題は解決するかに見
えたのであるが、新たな課題を有することが分った。[0008] As described above, it seems that the above-mentioned problem can be solved, but it has been found that there is a new problem.
【０００９】すなわち、かかる構造において、吸塵式研
削機全体を被研掃体に摺動させると、粉塵飛散防止カバ
ー３の上部は、伸縮融通性の材料であるため、本体の移
動により前進方向が圧縮され、反対方向が引張られるた
め全体が移動する前に回転刃２が粉塵飛散防止カバー３
の内壁に接触する可能性のあることが分った。That is, in such a structure, when the entire dust-absorbing grinder is slid on the object to be polished, the upper part of the dust scattering prevention cover 3 is made of an elastic material, so that the moving direction of the main body changes the forward direction. Since the rotary blade 2 is compressed and pulled in the opposite direction, the rotary blade 2 is moved to the dust scattering prevention cover 3 before the whole moves.
It has been found that there is a possibility of contact with the inner wall.
【００１０】本発明は、このような、これまでの吸塵式
研削機に見られる課題と、新たに浮上した課題を以下述
べるところにより一挙に解決しようとするものである。The present invention seeks to solve the problems found in conventional dust-absorbing grinders and the newly emerged problems at a glance as follows.
【００１１】[0011]
【課題を解決するための手段】上記課題は、本体と回転
刃と回転刃を覆う粉塵飛散防止カバーとからなる吸塵式
研削機において、粉塵飛散防止カバーの上部に自由変形
部を形成するとともに粉塵飛散防止カバー内の回転刃の
上方に粉塵飛散防止カバーの内径よりも小で下端が回転
刃の径よりも大の径を有する硬質の保護カバーを本体に
固着することにより位置させることにより解決する。SUMMARY OF THE INVENTION An object of the present invention is to provide a dust-absorbing grinder comprising a main body, a rotary blade, and a dust scatter prevention cover for covering the rotary blade. This problem is solved by fixing a hard protective cover having a diameter smaller than the inner diameter of the dust scattering prevention cover and having a lower end larger than the diameter of the rotation blade to the main body above the rotating blade in the scattering prevention cover. .
【００１２】[0012]
【実施の形態】つぎに、本発明の実施の形態を図面に基
き説明する。Next, an embodiment of the present invention will be described with reference to the drawings.
【００１３】図１は、基本的な実施の形態を示す部分断
面図である。図１において、１は本体、２は回転刃、３
は粉塵飛散防止カバー、４は自由変形部、５は保護カバ
ーである。FIG. 1 is a partial sectional view showing a basic embodiment. In FIG. 1, 1 is a main body, 2 is a rotary blade, 3
Is a dust scattering prevention cover, 4 is a freely deformable portion, and 5 is a protective cover.
【００１４】本体１には、図示してないが、モーターが
内蔵されていて、回転刃２がモーター軸に回転軸２ａを
介して接続されている。回転刃２は、公知のサンディン
グディスク、研削砥石等が用いられる。粉塵飛散防止カ
バー３は、本体１の突出部１ａの外回りに予め取り付け
られた保護カバー５の外回りに接続した自由変形部４を
介して取り付けられ、自由変形部４とともにほぼ碗状を
呈している。保護カバー５は、下端が粉塵飛散防止カバ
ー３の内径より小で、回転刃２の径よりも大の径を有
し、粉塵飛散防止カバー３よりも小の碗状にして合成樹
脂、金属、木等の硬質の材料により形成されて、粉塵飛
散防止カバー３内の回転刃２の上方に、上端方を本体１
の突出部１ａの外回りに固着して接続することにより位
置させてある。６は吸引装置への吸引パイプ、７は必要
により設けられた被研掃体Ａと粉塵飛散防止カバー３と
の間の減圧状態を避けるためのブラシで、これらは公知
のものである。８は適宜設けられた通気孔である。Although not shown, the main body 1 has a built-in motor, and a rotary blade 2 is connected to a motor shaft via a rotary shaft 2a. As the rotary blade 2, a known sanding disk, grinding wheel, or the like is used. The dust scattering prevention cover 3 is attached via a free deformation portion 4 connected to the outer circumference of a protection cover 5 previously mounted on the outer circumference of the projecting portion 1a of the main body 1, and has a substantially bowl shape together with the free deformation portion 4. . The protective cover 5 has a lower end having a diameter smaller than the inner diameter of the dust scattering prevention cover 3 and a diameter larger than the diameter of the rotary blade 2, and is formed in a bowl shape smaller than the dust scattering prevention cover 3, and is made of synthetic resin, metal, The upper end of the main body 1 is formed of a hard material such as wood, above the rotary blade 2 in the dust scattering prevention cover 3.
Is fixedly connected to the outer periphery of the projection 1a. Reference numeral 6 denotes a suction pipe to the suction device, and 7 denotes a brush for avoiding a reduced pressure state between the workpiece A and the dust scattering prevention cover 3 provided as necessary. Reference numeral 8 denotes a ventilation hole provided as appropriate.
【００１５】つぎに、本発明の要部の実施の形態の幾つ
かを図２以下に示す。なお、図中吸引パイプ及び本体は
突出部を除き省略してある。Next, some embodiments of the main part of the present invention are shown in FIG. In the drawings, the suction pipe and the main body are omitted except for the protrusion.
【００１６】図２は、要部断面図で、自由変形部４が蛇
腹状ゴムで形成され、保護カバー５が碗状である例を示
す。図５は保護カバー５の斜視図である。粉塵飛散防止
カバー３は、本体の突出部１ａに取り付けられた保護カ
バー５の上方外回りに接着して接続した自由変形部４に
接着して接続され、保護カバー５は碗状に形成されて、
上端方を本体の突出部１ａの外回りに固着して接続する
ことにより粉塵飛散防止カバー３内の回転刃２の上方に
位置させてある。FIG. 2 is a sectional view of an essential part, showing an example in which the free deformable portion 4 is formed of bellows-like rubber and the protective cover 5 is bowl-shaped. FIG. 5 is a perspective view of the protective cover 5. The dust scattering prevention cover 3 is bonded and connected to the free deformation portion 4 which is bonded and connected to the upper and outer circumferences of the protection cover 5 attached to the protrusion 1a of the main body, and the protection cover 5 is formed in a bowl shape.
The upper end is fixedly connected to the outer periphery of the protruding portion 1a of the main body, and thereby is positioned above the rotary blade 2 in the dust scattering prevention cover 3.
【００１７】図３は、要部断面図で、自由変形部４が平
板状ゴムで形成され、保護カバー５が碗状である例を示
す。保護カバー５の斜視図は図５と同じである。粉塵飛
散防止カバー３は、本体の突出部１ａに取り付けられた
保護カバー５の上方外回りに固着して設けられた取り付
け代４ａに接着して接続した自由変形部４に接着して接
続され、保護カバー５は碗状に形成されて、上端方を本
体の突出部１ａの外回りに固着して接続することによ
り、粉塵飛散防止カバー３内の回転刃２の上方に位置さ
せてある。FIG. 3 is a sectional view of an essential part, showing an example in which the free deformable portion 4 is formed of flat rubber and the protective cover 5 is bowl-shaped. The perspective view of the protective cover 5 is the same as FIG. The dust scattering prevention cover 3 is bonded and connected to the free deformation portion 4 which is bonded and connected to a mounting margin 4a which is fixedly provided on the outer periphery of the protection cover 5 mounted on the projecting portion 1a of the main body. The cover 5 is formed in a bowl shape, and is positioned above the rotary blade 2 in the dust scattering prevention cover 3 by being fixedly connected at its upper end to the outer periphery of the projecting portion 1a of the main body.
【００１８】図４は、要部断面図で、自由変形部４が蛇
腹状ゴムで形成され、保護カバー５が丸棒の骨組構造で
ある例を示す。図６は保護カバー５の斜視図である。粉
塵飛散防止カバー３は、本体の突出部１ａに固着して取
り付けられた保護カバーの取り付け代５ｂの外回りに接
着して接続した自由変形部４に接着して接続され、保護
カバー５は、本体の突出部１ａに固着して取り付けた取
り付け代５ｂに丸棒５ｃによる骨組構造を結合して形成
され、粉塵飛散防止カバー３内の回転刃２の上方に位置
させてある。FIG. 4 is a sectional view of an essential part, showing an example in which the free deformable portion 4 is formed of bellows-like rubber, and the protective cover 5 has a frame structure of a round bar. FIG. 6 is a perspective view of the protective cover 5. The dust scattering prevention cover 3 is bonded and connected to a free deformation portion 4 which is bonded and connected to the outer periphery of a mounting margin 5b of the protection cover which is fixedly mounted to the projecting portion 1a of the main body. Is formed by connecting a frame structure with a round bar 5c to an attachment margin 5b fixedly attached to the protruding portion 1a, and is located above the rotary blade 2 in the dust scattering prevention cover 3.
【００１９】このようにして形成された吸塵式研削機は
つぎのような動作をする。The dust-absorbing grinder thus formed operates as follows.
【００２０】図７は、自由変形部４が蛇腹状ゴム、図８
は、自由変形部４が平板状ゴムである場合の動作説明図
である。FIG. 7 shows that the free deformable portion 4 has a bellows-like rubber, and FIG.
FIG. 4 is an operation explanatory diagram when the free deformation portion 4 is a flat rubber.
【００２１】この図において、被研掃体Ａに対して本体
を傾けると回転刃２は、本体に内蔵されたモーター軸に
回転軸２ａを介して接続されており、また、保護カバー
５は、本体に突出部１ａを介して取り付けられているの
で、被研掃体Ａの傾斜に追随して傾斜する。ところが、
粉塵飛散防止カバー３は、図７にあっては、自由変形部
４である蛇腹状ゴムの一方は圧縮、反対側は引張り状態
を許容する伸縮融通性により、また、図８にあっては、
自由変形部４である平板状ゴムの変形による伸縮融通性
により傾斜しない。したがって、研掃を続けても粉塵飛
散防止カバー３の下端が被研掃体Ａから離れることはな
く、両者の間に隙間を生じないようにすることができ、
隙間からの粉塵の飛散を防止できる。In this figure, when the main body is tilted with respect to the object A to be polished, the rotary blade 2 is connected to a motor shaft built in the main body via a rotary shaft 2a. Since it is attached to the main body via the protruding portion 1a, it inclines following the inclination of the object A to be polished. However,
In FIG. 7, the dust scattering prevention cover 3 has one of the bellows-like rubbers, which is the free deformable portion 4, which is compressed, and the other side has elasticity to allow a tensile state, and in FIG.
It does not tilt due to expansion and contraction flexibility due to deformation of the flat rubber, which is the free deformation portion 4. Therefore, even if the polishing is continued, the lower end of the dust scattering prevention cover 3 does not separate from the object A to be polished, so that no gap is formed between them.
Scattering of dust from the gap can be prevented.
【００２２】引き続きこの状態で移動を続けると、本体
とともに回転刃２と保護カバー５は、同じ移動をする
が、粉塵飛散防止カバー３は、自由変形部４を介して本
体に接続されているので、その伸縮融通性と粉塵飛散防
止カバー３の下端と被研掃体Ａとの接触部との抵抗によ
り移動しにくくなる。これは本体を傾けない場合でも同
様のことがいえる。このとき、保護カバー５は、本体と
ともに同じ移動をするので、粉塵飛散防止カバー３が接
触し、移動方向へと押し進める作用をする。もしこのと
き保護カバー５が取り付けられていないと回転刃２が本
体と同じ移動をして、保護カバー５に接触し、事故の原
因となる。If the user continues to move in this state, the rotary blade 2 and the protective cover 5 move together with the main body, but the dust scattering prevention cover 3 is connected to the main body via the free deformation portion 4. In addition, it is difficult to move due to its elasticity and flexibility and the resistance between the lower end of the dust scattering prevention cover 3 and the contact portion with the object A to be polished. The same can be said for the case where the main body is not tilted. At this time, since the protective cover 5 moves together with the main body, the dust scattering prevention cover 3 comes into contact with the protective cover 5 and acts to push in the moving direction. If the protective cover 5 is not attached at this time, the rotary blade 2 moves in the same manner as the main body, comes into contact with the protective cover 5, and causes an accident.
【００２３】[0023]
【発明の効果】本発明は、上述のようにしてなるので、
つぎの効果を有する。The present invention has been made as described above.
It has the following effects.
【００２４】本体と回転刃と回転刃を覆う粉塵飛散防止
カバーとからなる吸塵式研削機において、粉塵飛散防止
カバーに自由変形部を形成したので、本体を傾けても粉
塵飛散防止カバーと被研掃体との間に隙間が生じないよ
うにすることができる。したがって、隙間からの粉塵の
飛散を防止することができる。In the dust-absorbing grinder comprising the main body, the rotary blade, and the dust scattering prevention cover covering the rotary blade, a free deformation portion is formed on the dust scattering prevention cover. It is possible to prevent a gap from being generated with the sweep body. Therefore, scattering of dust from the gap can be prevented.
【００２５】粉塵飛散防止カバー内の回転刃の上方にカ
バー内径よりも小で、下端が回転刃の径よりも大の径を
有する硬質の保護カバーを位置させたので、粉塵飛散防
止カバーに自由変形部が形成されることによる伸縮融通
性があっても回転刃が粉塵飛散防止カバーに接触するこ
とはない。Since a hard protective cover having a diameter smaller than the inner diameter of the cover and a lower end having a diameter larger than the diameter of the rotary blade is located above the rotary blade in the dust scattering cover, the cover can be freely used. The rotary blade does not come into contact with the dust scattering prevention cover even when the deformable portion is provided with elasticity due to expansion and contraction.
【図１】本発明の吸塵式研削機の実施の形態を示す部分
断面図である。FIG. 1 is a partial sectional view showing an embodiment of a dust-absorbing grinder according to the present invention.
【図２】本発明の要部の実施の形態を示す断面図であ
る。FIG. 2 is a sectional view showing an embodiment of a main part of the present invention.
【図３】本発明の要部の別の実施の形態を示す断面図で
ある。FIG. 3 is a sectional view showing another embodiment of a main part of the present invention.
【図４】本発明の要部のさらに別の実施の形態を示す断
面図である。FIG. 4 is a sectional view showing still another embodiment of a main part of the present invention.
【図５】図２及び図３に示した保護カバーの斜視図であ
る。FIG. 5 is a perspective view of the protective cover shown in FIGS. 2 and 3;
【図６】図４に示した保護カバーの斜視図である。FIG. 6 is a perspective view of the protective cover shown in FIG.
【図７】図２に示した実施の形態の動作を説明する断面
図である。FIG. 7 is a cross-sectional view for explaining the operation of the embodiment shown in FIG. 2;
【図８】図３に示した実施の形態の動作を説明する断面
図である。FIG. 8 is a cross-sectional view for explaining the operation of the embodiment shown in FIG.
【図９】従来の吸塵式研削機の一例を示す部分断面図で
ある。FIG. 9 is a partial cross-sectional view showing an example of a conventional dust-absorbing grinder.
【図１０】本発明の過程を説明する部分断面図である。FIG. 10 is a partial sectional view illustrating a process of the present invention.
１ 本体 ２ 回転刃 ３ 粉塵飛散防止カバー ４ 自由変形部 ５ 保護カバー ６ 吸引パイプ ７ ブラシ DESCRIPTION OF SYMBOLS 1 Main body 2 Rotary blade 3 Dust scattering prevention cover 4 Free deformation part 5 Protective cover 6 Suction pipe 7 Brush
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B24B 55/10 B24B 55/04 B28D 7/02 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) B24B 55/10 B24B 55/04 B28D 7/02
Claims (1)
止カバーとからなる吸塵式研削機において、粉塵飛散防
止カバーは、上部に自由変形部が形成されるとともにこ
の粉塵飛散防止カバー内の回転刃の上方に粉塵飛散防止
カバーの内径よりも小で下端が回転刃の径よりも大の径
を有する硬質の保護カバーを本体に固着することにより
位置させてなることを特徴とする吸塵式研削機。1. A dust-absorbing grinder comprising a main body, a rotary blade, and a dust-scattering cover covering the rotary blade, wherein the dust-scattering cover has a freely deformable portion formed on an upper portion thereof and a dust-scattering cover inside the dust-scattering cover. A dust-absorbing type, wherein a hard protective cover having a diameter smaller than the inner diameter of the dust scattering prevention cover and having a lower end larger than the diameter of the rotary blade is fixed to the main body above the rotary blade. Grinding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9097933A JP3022391B2 (en) | 1997-04-02 | 1997-04-02 | Dust absorption type grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9097933A JP3022391B2 (en) | 1997-04-02 | 1997-04-02 | Dust absorption type grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10277938A JPH10277938A (en) | 1998-10-20 |
| JP3022391B2 true JP3022391B2 (en) | 2000-03-21 |
Family
ID=14205484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9097933A Expired - Fee Related JP3022391B2 (en) | 1997-04-02 | 1997-04-02 | Dust absorption type grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3022391B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866956B2 (en) * | 2009-05-19 | 2012-02-01 | 株式会社呉英製作所 | Dust-proof cover structure, grinding device and cutting device |
| CN107639544B (en) * | 2017-10-12 | 2023-05-23 | 无锡透平叶片有限公司 | Cooling structure device for grinding straight surface of blade root intermediate body of tenon tooth blade |
| EP3476535B1 (en) | 2017-10-26 | 2023-03-15 | Wolff GmbH & Co. KG | Floor grinding apparatus with dust-tight rings |
| JP7100527B2 (en) * | 2018-08-06 | 2022-07-13 | 株式会社マキタ | Covers and tools |
| CN112388468B (en) * | 2019-08-16 | 2022-12-13 | 博世电动工具（中国）有限公司 | Hand-held power tool |
| CN111267257B (en) * | 2020-04-03 | 2024-07-05 | 宿州学院 | Follow-up dust collection assembly for stone processing machine |
| CN113442011B (en) * | 2021-07-13 | 2023-01-06 | 信霖微智电子(上海)有限公司 | Equipment is got rid of to singlechip border burr |
-
1997
- 1997-04-02 JP JP9097933A patent/JP3022391B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10277938A (en) | 1998-10-20 |
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