JP3060831U - Hand grinder dust suction device - Google Patents
Hand grinder dust suction deviceInfo
- Publication number
- JP3060831U JP3060831U JP1999000125U JP12599U JP3060831U JP 3060831 U JP3060831 U JP 3060831U JP 1999000125 U JP1999000125 U JP 1999000125U JP 12599 U JP12599 U JP 12599U JP 3060831 U JP3060831 U JP 3060831U
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- covering member
- grinder
- suction device
- dust suction
- 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 - Lifetime
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
(57)【要約】
【課題】被研磨材を研磨した研磨粉が周部に飛び散るこ
とがなく、又、天井面を研磨する場合でも研磨粉が下方
に落ちて作業者の目に入るおそれがなく、円滑に研磨作
業を行い得るハンドグラインダーの吸塵装置を提供す
る。
【解決手段】本願発明の吸塵装置８は、回転自在な研磨
部１３と長尺筒状の操作把持部２とを有するハンドグラ
インダーに装備されており、吸塵装置本体８１と、研磨
部１３を覆う被覆部材８２と、移送路８３とを備えてい
る。移送路８３の一部は、グラインダー本体１の操作把
持部２により形成されている。被覆部材８２は、少なく
とも一部を合成ゴム等の柔軟性を有する素材から構成し
た側壁を備えるとともに、空気引込み部を備え、この空
気引込み部によって、吸引に際して被覆部材８２の外部
から被覆部材８２の内部に空気を引き込み得るようにな
されている。更に、この被覆部材８２は、上下位置調整
手段を備え、この上下位置調整手段によって、グライン
ダー本体１の研磨部１３に対する被覆部材８２の下端面
８７の上下位置を調整できるようになされている。
(57) [Summary] Abrasive powder obtained by polishing a material to be polished does not scatter to the peripheral portion, and even when polishing a ceiling surface, there is a possibility that the abrasive powder falls down and enters an operator's eyes. The present invention provides a dust suction device for a hand grinder that can perform a smooth grinding operation without any problem. A dust suction device (8) of the present invention is mounted on a hand grinder having a rotatable polishing portion (13) and a long cylindrical operation grip portion (2), and covers a dust suction device main body (81) and a polishing portion (13). A covering member 82 and a transfer path 83 are provided. A part of the transfer path 83 is formed by the operation grip part 2 of the grinder main body 1. The covering member 82 has a side wall at least partly made of a flexible material such as synthetic rubber, and has an air drawing part. The air drawing part allows the covering member 82 to be drawn from outside the covering member 82 at the time of suction. The air is drawn into the interior. Further, the covering member 82 is provided with a vertical position adjusting means, and the vertical position adjusting means can adjust the vertical position of the lower end face 87 of the covering member 82 with respect to the polishing portion 13 of the grinder body 1.
Description
【０００１】[0001]
本願考案は、建造物の床面、壁面、天井等や、石材、或いは金属等を研磨する ハンドグラインダーの吸塵装置に関するものである。 The present invention relates to a dust suction device of a hand grinder for polishing floors, walls, ceilings, etc. of buildings, stones, metals, and the like.
【０００２】[0002]
従来から、建造物の床面、壁面、天井等や、石材、或いは金属等を研磨する携 帯可能なハンドグラインダーが知られている。この従来のハンドグラインダーは 、図１５に示すように下方側に回転自在な研磨部ａ１を有するグラインダー本体 ａと、グラインダー本体ａを操作する長尺状の操作把持部ｂとを備え、グライン ダー本体ａと操作把持部ｂとを回動自在に接続したものであり、この操作把持部 ｂを操作することにより、研磨部ａ１の下面に形成した研磨面ａ２で床面、壁面 、天井等の被研磨面を研磨できるようにしたものである。尚、図中のｃは、板バ ネを示しており、操作把持部ｂの後部側を、図１５に示す状態からグラインダー 本体ａに対して上方側に回動してグラインダー本体ａに対する角度Ａを大きくし ていくとこの板バネｃが操作把持部ｂを付勢して元の状態に戻す。 しかしながら、このものにおいては、研磨部ａ１が露出しているため、被研磨 材を研磨した研磨粉が周部に飛び散ってしまう。又、この研磨部ａ１を上向きに して天井面を研磨する場合には、研磨粉が下方に落下し、作業者の目に入る等、 作業が非常にし難くなってしまう。 2. Description of the Related Art Portable hand grinders for polishing floors, walls, ceilings, and the like of buildings, stones, metals, and the like have been known. As shown in FIG. 15, this conventional hand grinder includes a grinder body a having a rotatable polishing portion a1 on the lower side, and an elongated operation grip portion b for operating the grinder body a. a and an operation gripping part b are rotatably connected. By operating the operation gripping part b, a polishing surface a2 formed on the lower surface of the polishing part a1 can be used to cover a floor, a wall surface, a ceiling, or the like. The polishing surface can be polished. In addition, c in the figure indicates a plate spring, and the rear side of the operation gripping portion b is rotated upward with respect to the grinder main body a from the state shown in FIG. When is increased, the leaf spring c urges the operation grip portion b to return to the original state. However, in this case, since the polishing portion a1 is exposed, polishing powder obtained by polishing the material to be polished scatters around. In addition, when polishing the ceiling surface with the polishing part a1 facing upward, the work becomes extremely difficult, for example, the polishing powder falls down and enters the eyes of an operator.
【０００３】[0003]
本願考案は、以上の実情に鑑み提案されたもので、被研磨材を研磨した研磨粉 が周部に飛び散ることがなく、又、天井面を研磨する場合でも研磨粉が下方に落 ちて作業者の目に入るおそれがなく、円滑に研磨作業を行い得るハンドグライン ダーの吸塵装置を提供することを目的とする。 The present invention has been proposed in view of the above circumstances, and the polishing powder obtained by polishing the material to be polished does not scatter to the periphery, and even when polishing the ceiling surface, the polishing powder falls down and works. It is an object of the present invention to provide a dust suction device of a hand grinder that can smoothly perform a polishing operation without being in the eyes of a user.
【０００４】[0004]
【課題を解決するための手段】 本願考案は、以下の特徴を有するハンドグラインダーの吸塵装置を提供するこ とにより上記課題を解決する。 本願第１の考案は、下方側に回転自在な研磨部１３を有するグラインダー本体 １と、吸塵装置８とを備える。 吸塵装置８は、グラインダー本体１の研磨部１３を上方及び側方側から覆う被 覆部材８２を備えることにより、グラインダー本体１の研磨部１３で被研磨材を 研磨した研磨粉を被覆部材８２を介して吸引し得るようになされる。 この被覆部材８２は、グラインダー本体１の研磨部１３を被研磨材に当てる際 に、研磨部１３の周部側を覆う側壁８５を備え、この側壁８５の少なくとも一部 が、合成ゴム等の柔軟性を有する素材から構成されたものである。Means for Solving the Problems The present invention solves the above problems by providing a dust suction device for a hand grinder having the following features. The first invention of the present application includes a grinder body 1 having a rotatable polishing portion 13 on the lower side, and a dust suction device 8. The dust suction device 8 includes a covering member 82 that covers the polishing portion 13 of the grinder main body 1 from above and from the side, so that the abrasive powder obtained by polishing the material to be polished by the polishing portion 13 of the grinder main body 1 covers the coating member 82. Through which it can be aspirated. The covering member 82 includes a side wall 85 that covers the peripheral side of the polishing section 13 when the polishing section 13 of the grinder body 1 is applied to the material to be polished. At least a part of the side wall 85 is made of a soft material such as synthetic rubber. It is composed of a material having properties.
【０００５】 本願第２の考案は、本願第１の考案に係る側壁８５の下端面８７の少なくとも 一部に、合成ゴムより硬質の素材からなる硬質部材８７ａが備えられものである 。The second invention of the present application is such that at least a portion of the lower end surface 87 of the side wall 85 according to the first invention of the present application is provided with a hard member 87a made of a material harder than synthetic rubber.
【０００６】 本願第３の考案は、本願第１又は第２の考案に係る側壁８５の下端面８７が、 凹凸を有するものであり、この凹凸によって、被覆部材８２が、吸引に際して被 覆部材８２の外部から被覆部材８２の内部に空気を引き込み得るようになされた ものである。In a third aspect of the present invention, the lower end surface 87 of the side wall 85 according to the first or second aspect of the present invention has irregularities, and the unevenness causes the covering member 82 to be covered by the covering member 82 during suction. This allows air to be drawn into the interior of the covering member 82 from outside.
【０００７】 本願第４の考案は、本願第１又は第２の考案に係る被覆部材８２が、空気引込 み部８９を備え、この空気引込み部８９によって、被覆部材８２が、吸引に際し て被覆部材８２の外部から被覆部材８２の内部に空気を引き込み得るようになさ れたものである。According to a fourth aspect of the present invention, the covering member 82 according to the first or second aspect of the present invention includes an air intake portion 89, and the covering member 82 is used by the air intake portion 89 when the suction member is sucked. Air is drawn into the inside of the covering member 82 from the outside of the covering member 82.
【０００８】 本願第５の考案は、本願第１〜第３のいずれかの考案に係る被覆部材８２が、 下端面８７の上下位置を調整する上下位置調整手段８５ａ、８４ｄを備え、この 上下位置調整手段８５ａ、８４ｄによって、グラインダー本体１の研磨部１３に 対する下端面８７の上下位置が調整され得るようになされたものである。In a fifth aspect of the present invention, the covering member 82 according to any one of the first to third aspects of the present invention includes vertical position adjusting means 85 a and 84 d for adjusting the vertical position of the lower end surface 87, The vertical position of the lower end face 87 with respect to the polishing portion 13 of the grinder main body 1 can be adjusted by adjusting means 85a and 84d.
【０００９】 本願第６の考案は、本願第１〜第４のいずれかの考案に係る吸塵装置８が、吸 塵装置本体８１と、被覆部材８２と、移送路８３とを備える。この移送路８３は 、吸塵装置本体８１と被覆部材８２との各々に接続されることにより、移送路８ ３が研磨粉を被覆部材８２から吸塵装置本体８１に移送可能とされる。 グラインダー本体１は、研磨部１３を操作する長尺筒状の操作把持部２を備え る。そして、この操作把持部２の内部は、移送路８３の一部を構成するものであ る。In a sixth aspect of the present invention, a dust suction device 8 according to any of the first to fourth inventions of the present application includes a dust suction device main body 81, a covering member 82, and a transfer path 83. The transfer path 83 is connected to each of the dust suction device main body 81 and the covering member 82, so that the transfer path 83 can transfer the abrasive powder from the coating member 82 to the dust suction device main body 81. The grinder main body 1 includes a long cylindrical operation gripping part 2 for operating the polishing part 13. The inside of the operation grip part 2 forms a part of the transfer path 83.
【００１０】 以上のように構成された本願第１の考案においては、グラインダー本体１の研 磨部１３を上方及び側方側から覆う被覆部材８２を備えるため、被研磨材を研磨 した研磨粉が周部に飛び散ることがなく、又、天井面を研磨する場合でも研磨粉 が下方に落ちて作業者の目に入るおそれがなく、円滑に研磨作業を行い得る。 又、被覆部材８２に、グラインダー本体１の研磨部１３を被研磨材に当てる際 に、研磨部１３の周部側を覆う側壁８５を備え、この側壁８５の少なくとも一部 を、合成ゴム等の柔軟性を有する素材から構成したものとすることにより、図１ ０に示すようにグラインダー本体１の研磨部１３が被研磨材に対して傾いて側壁 ８５の下端面８７が被研磨材に当った場合に、例えば側壁８５を柔軟性のない硬 いものから構成している場合にはその被研磨材に当った側壁８５の下端面８７が 支点になって研磨面１４全体が被研磨材から浮き上がって研磨できなくなるが、 この第１考案のように側壁８５を合成ゴム等の柔軟性を有する素材から構成して おけば、そのような場合でも側壁８５が撓んで研磨面１４の一部を当接させた状 態になって研磨でき、研磨面１４の全体が被研磨材から浮き上がって研磨できな くなるようなことを防止できる。 更に、側壁８５を、合成ゴム等の柔軟性を有する素材から構成しておくことに より、例えば研磨面１４が擦り減って下端面８７の位置を研磨面１４に対して上 方に上げる必要が生じた場合には、側壁８５の下端部を刃物等で容易に切断でき 、研磨面１４の擦り減った分だけ切断して下端面８７を上方位置にできる。In the first invention of the present application configured as described above, since the covering member 82 that covers the polishing portion 13 of the grinder body 1 from above and from the side is provided, the polishing powder obtained by polishing the material to be polished is provided. The polishing work can be performed smoothly without scattering to the periphery and without the possibility that the polishing powder will fall down into the eyes of the operator even when polishing the ceiling surface. Further, when the polishing member 13 of the grinder body 1 is brought into contact with the material to be polished, the covering member 82 is provided with a side wall 85 that covers the peripheral side of the polishing unit 13. By using a material having flexibility, the polishing portion 13 of the grinder body 1 is inclined with respect to the material to be polished, and the lower end surface 87 of the side wall 85 hits the material to be polished, as shown in FIG. In this case, for example, when the side wall 85 is made of an inflexible hard material, the lower end surface 87 of the side wall 85 hitting the polished material serves as a fulcrum, and the entire polishing surface 14 rises from the polished material. However, if the side wall 85 is made of a flexible material such as synthetic rubber as in the first invention, even in such a case, the side wall 85 is bent and a part of the polishing surface 14 is applied. Polished in contact with Come, the entire polishing surface 14 can be prevented as Kunar be able polished lifted from the abrasive. Further, by forming the side wall 85 from a flexible material such as synthetic rubber, it is necessary to raise the position of the lower end surface 87 upward with respect to the polishing surface 14, for example, by abrasion of the polishing surface 14. If this occurs, the lower end portion of the side wall 85 can be easily cut with a blade or the like, and the lower end surface 87 can be set at an upper position by cutting the polishing surface 14 by the reduced amount.
【００１１】 本願第２の考案においては、下端面８７の少なくとも一部に、合成ゴムより硬 質の素材からなる硬質部材８７ａを備えたものとする。例えば下端面８７の全体 を合成ゴムから構成した場合には、研磨部１３で被研磨材を研磨する際に、下端 面８７が被研磨材に当接するとその抵抗によって被研磨材を滑らせ難くなってし まい、又、下端面８７が被研磨材に当接すると下端面８７の減りが早い。しかも 、下端面８７の全体が被研磨材に当接すると吸引力によって下端面８７が被研磨 材に密接して吸い着いてしまうおそれがある。そこで、この第２実施形態のよう に、下端面８７の少なくとも一部に、合成ゴムより硬質の素材からなる硬質部材 ８７ａを備えたものとしておくことで、下端面８７が被研磨材に当接した場合で も被研磨材を容易に滑らせて被研磨材の研磨を円滑に行うことができるとともに 、下端面８７の減りを抑えることができる。しかも、下端面８７の全体が被研磨 材に当接した場合でも、被研磨材に密接するようなことがなく、吸引力によって 下端面８７が被研磨材に吸い着いてしまうようなことを防止できる。In the second invention of the present application, at least a part of the lower end face 87 is provided with a hard member 87a made of a material harder than synthetic rubber. For example, when the entire lower end face 87 is made of synthetic rubber, when the lower end face 87 comes into contact with the polished material when the polished material is polished by the polishing section 13, the polished material is less likely to slip due to the resistance. When the lower end surface 87 comes into contact with the material to be polished, the lower end surface 87 is rapidly reduced. In addition, when the entire lower end surface 87 comes into contact with the material to be polished, the lower end surface 87 may be in close contact with the material to be polished and attracted by the suction force. Therefore, as in the second embodiment, at least a part of the lower end surface 87 is provided with a hard member 87a made of a material harder than synthetic rubber, so that the lower end surface 87 abuts on the material to be polished. Even in this case, the material to be polished can be easily slid so that the material to be polished can be polished smoothly, and the reduction of the lower end surface 87 can be suppressed. In addition, even when the entire lower end face 87 contacts the workpiece, the lower end face 87 does not stick to the workpiece due to the suction force without coming into close contact with the workpiece. it can.
【００１２】 本願第３の考案においては、被覆部材８２の側壁８５の下端面８７に凹凸を有 するものとする。例えば合成ゴムから構成した下端面８７の全体を平面に形成し ている場合には、下端面８７が被研磨材に当接すると吸引力によって下端面８７ が被研磨材に吸い着いてしまってグラインダー本体１を動かし難くなってしまう 場合があるが、本願第３の考案のように、側壁８５の下端面８７に凹凸を有する ものとしておくことにより、下端面８７が被研磨材に当接した場合でも、下端面 ８７と被研磨材との間に隙間８８を形成しておくことができ、吸引力によって下 端面８７が被研磨材に吸い着いてしまうようなことを防止でき、グラインダー本 体１を常時円滑に操作できる。In the third invention of the present application, it is assumed that the lower end surface 87 of the side wall 85 of the covering member 82 has irregularities. For example, when the entire lower end surface 87 made of synthetic rubber is formed as a flat surface, when the lower end surface 87 comes into contact with the material to be polished, the lower end surface 87 is attracted to the material to be polished by the suction force and the grinder is formed. In some cases, it becomes difficult to move the main body 1. However, as in the third invention of the present application, the lower end surface 87 of the side wall 85 has irregularities so that the lower end surface 87 contacts the workpiece. However, a gap 88 can be formed between the lower end surface 87 and the material to be polished, so that the lower end surface 87 can be prevented from sticking to the material to be polished by the suction force. Can always be operated smoothly.
【００１３】 本願第４の考案においては、被覆部材８２に空気引込み部８９を設けたものと する。例えば合成ゴムから構成した下端面８７の全体を平面に形成している場合 には、下端面８７が被研磨材に当接すると吸引力によって下端面８７が被研磨材 に吸い着いてしまってグラインダー本体１を動かし難くなってしまう場合がある が、本願第４の考案のように、被覆部材８２に、例えば空気引込み部８９として 被覆部材８２の側壁８５に内部から外部に貫通する貫通孔を設け、或いは、貫通 孔と共に、側壁８５の下端面８７に凹凸を設けておくことにより、吸引に際して 下端面８７が被研磨材に当接した場合でも、空気引込み部８９としての貫通孔８ ９等から空気を被覆部材８２の内部に引込むことができ、吸引力によって下端面 ８７が被研磨材に吸い着いてしまうようなことを防止でき、グラインダー本体１ を常時円滑に操作できる。In the fourth invention of the present application, the covering member 82 is provided with an air drawing part 89. For example, when the entire lower end surface 87 made of synthetic rubber is formed as a flat surface, when the lower end surface 87 comes into contact with the material to be polished, the lower end surface 87 is attracted to the material to be polished by the suction force and the grinder is formed. Although it may be difficult to move the main body 1, as in the fourth invention of the present application, a through hole that penetrates from the inside to the outside is provided on the side wall 85 of the covering member 82, for example, as an air drawing part 89. Alternatively, by providing irregularities on the lower end surface 87 of the side wall 85 together with the through holes, even when the lower end surface 87 comes into contact with the material to be polished at the time of suction, the lower end surface 87 can pass through the through holes 89 or the like as the air drawing portion 89. The air can be drawn into the inside of the covering member 82, and it can be prevented that the lower end surface 87 is attracted to the material to be polished by the suction force, so that the grinder body 1 can always be operated smoothly. That.
【００１４】 本願第５の考案においては、被覆部材８２に、下端面８７の上下位置を調整す る上下位置調整手段８５ａ、８４ｄを備え、この上下位置調整手段８５ａ、８４ ｄによって、グラインダー本体１の研磨部１３に対する下端面８７の上下位置を 調整し得るものとする。下端面８７とグラインダー本体１の研磨面１４との高さ 位置を予め設定しておいても、複数回の使用によって、研磨面１４又は下端面８ ７が擦り減った場合には、当初設定した下端面８７と研磨面１４との高さ位置が ずれてしまい、その結果、研磨面１４がすり減った場合には、研磨面１４と被研 磨材とを当接させると先に下端面８７が被研磨材に当接してしまって研磨面１４ で被研磨材を研磨し難くなってしまい、或いは吸引力によって下端面８７が被研 磨材に吸い着いてしまう。一方、下端面８７がすり減った場合には、下端面８７ と被研磨材との間に大きな隙間が開いてその隙間から研磨粉が周部に飛び散る恐 れが生じてしまう。そこで、この第３実施形態のように上下位置調整手段８５ａ 、８４ｄによってグラインダー本体１の研磨面１４に対する下端面８７の上下位 置を調整し得るようにしておくことにより、複数回の使用によって、当初設置し た下端面８７と研磨面１４との高さ位置にずれを生じても、下端面８７と研磨面 １４との高さ位置を調整できる。これにより、上記のような下端面８７と被研磨 材との間の隙間から研磨粉が周部に飛び散ったり、或いは研磨面１４を被研磨材 に当接させようとしても先に下端面８７が被研磨材に当接して研磨面１４で被研 磨材を研磨し難くなってしまうようなことを確実に防止でき、円滑に研磨作業を 行うことができる。In the fifth invention of the present application, the covering member 82 is provided with vertical position adjusting means 85a, 84d for adjusting the vertical position of the lower end face 87, and the vertical position adjusting means 85a, 84d allows the grinder body 1 to be adjusted. The vertical position of the lower end surface 87 with respect to the polishing portion 13 can be adjusted. Even if the height position between the lower end surface 87 and the polishing surface 14 of the grinder main body 1 is set in advance, if the polishing surface 14 or the lower end surface 87 is worn down by multiple uses, the height position is initially set. When the height position of the lower end surface 87 and the polishing surface 14 is shifted, and as a result, the polishing surface 14 is worn out, when the polishing surface 14 and the workpiece are brought into contact, the lower end surface 87 is first moved. The material to be polished comes into contact with the material to be polished, making it difficult to polish the material to be polished on the polishing surface 14, or the lower end face 87 is attracted to the material to be polished by the suction force. On the other hand, if the lower end face 87 is worn, a large gap is opened between the lower end face 87 and the material to be polished, and there is a possibility that the abrasive powder is scattered from the gap to the peripheral portion. Therefore, as in the third embodiment, the upper and lower positions of the lower end surface 87 with respect to the polishing surface 14 of the grinder main body 1 can be adjusted by the vertical position adjusting means 85a and 84d, so that a plurality of times of use can be achieved. Even if the height position between the originally installed lower end surface 87 and the polishing surface 14 is shifted, the height position between the lower end surface 87 and the polishing surface 14 can be adjusted. As a result, the abrasive powder scatters around the peripheral portion from the gap between the lower end surface 87 and the material to be polished as described above, or even if the polishing surface 14 is brought into contact with the material to be polished, the lower end surface 87 is first slid. It is possible to reliably prevent the polishing object 14 from being difficult to be polished on the polishing surface 14 in contact with the polishing object, and to perform the polishing operation smoothly.
【００１５】 本願第６の考案においては、グラインダー本体１の操作把持部２を、筒状のも のから構成し、この操作把持部２の内部を移送路８３の一部を構成する。例えば 図１に示すように移送路８３を、操作把持部２とは別体のホースから構成する場 合は、操作把持部２でグラインダー本体１の研磨部１３を操作する際、ホースが 邪魔になって操作し難い。しかし、この第２実施形態では、操作把持部２の内部 を移送路８３の一部とすため、そのようなことを防止でき、操作把持部２でグラ インダー本体１の研磨部１３を操作し易いものにできる。In the sixth invention of the present application, the operation grip 2 of the grinder main body 1 is formed of a cylindrical member, and the inside of the operation grip 2 forms a part of the transfer path 83. For example, as shown in FIG. 1, when the transfer path 83 is configured by a hose separate from the operation gripper 2, when the operation gripper 2 operates the polishing unit 13 of the grinder body 1, the hose is obstructed. It is difficult to operate. However, in the second embodiment, since the inside of the operation gripper 2 is a part of the transfer path 83, such a situation can be prevented, and the operation gripper 2 operates the polishing unit 13 of the grinder body 1. It can be easy.
【００１６】[0016]
以下、図を基に本願考案の一実施形態を具体的に説明する。 図１は、本願考案の一実施形態のハンドグラインダー全体の側面図、図２は、 その平面図である。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of an entire hand grinder according to an embodiment of the present invention, and FIG. 2 is a plan view thereof.
【００１７】 本願考案のハンドグラインダーの吸塵装置８は、グラインダー本体１に取り付 けられている。本実施形態におけるグラインダー本体１は、ケーシング１１と、 研磨部１３と、操作把持部２と、ケーシング１１と操作把持部２とを可動自在に 接続した接続部材３とを備えている。ケーシング１１は、内部にモータ等（図示 せず）を備え、又、ケーシング１１の前部側の下端に、下方に突設された回転軸 １２を備えている。研磨部１３は、下面に研磨材が設けられており、下面が研磨 面１４をなしている。そして、この研磨部１３が、回転軸１２に回転不能に取り 付けられることにより、回転軸１２の回転に伴って共に回転するようになされて いる。The dust suction device 8 of the hand grinder of the present invention is attached to the grinder main body 1. The grinder main body 1 in the present embodiment includes a casing 11, a polishing unit 13, an operation grip unit 2, and a connection member 3 that movably connects the casing 11 and the operation grip unit 2. The casing 11 includes a motor and the like (not shown) therein, and a rotating shaft 12 protruding downward at a lower end on the front side of the casing 11. The polishing part 13 has a polishing material provided on the lower surface, and the lower surface forms a polishing surface 14. The polishing portion 13 is non-rotatably attached to the rotary shaft 12 so that the polishing portion 13 rotates together with the rotation of the rotary shaft 12.
【００１８】 操作把持部２は、グラインダー本体１の研磨部１３を操作するためもので、本 実施形態では、長尺状の筒状体から構成されている。操作把持部２の後部側は、 把持部２１をなし、この把持部２１を把持して研磨部１３を操作するようになさ れている。The operation gripping part 2 is for operating the polishing part 13 of the grinder main body 1, and in the present embodiment, is composed of an elongated cylindrical body. The rear side of the operation gripping part 2 forms a gripping part 21, and the polishing part 13 is operated by gripping the gripping part 21.
【００１９】 接続部材３は、ケーシング１１を挾持した挾持部材５と、操作把持部２に固定 された固定部材４とを備えている。挾持部材５は、図３に示すように略Ｕ字状を 呈する挾持本体５１と、挾持本体５１の下方側に取り付けられる挾持片５２とを 備えている。又、挾持本体５１の上面には、左支持片５４ａと、右支持片５４ｂ との左右一対をなす二つの支持片５４ａ、５４ｂが夫々、上方に突設されている 。これらの左支持片５４ａと右支持片５４ｂとの間隔は、後述する固定部材４の 本体部４２の幅より広く設定されており、その間に本体部４２を入れられるよう になされている。そして、挾持本体５１が、グラインダー本体１のケーシング１ １の上部外周に、上方側から被せられ、挾持片５２が、グラインダー本体１のケ ーシング１１の下部外周に、下方側から被せられた後、挾持本体５１と挾持片５ ２との各々に穿設したネジ挿通孔に通したボルト５３ａ、５３ａを、ナット５３ ｂ、５３ｂに螺合させて締め付けられることにより、挾持本体５１と挾持片５２ とでその間に配したケーシング１１を挾持している。The connecting member 3 includes a holding member 5 for holding the casing 11 and a fixing member 4 fixed to the operation grip portion 2. The holding member 5 includes a holding body 51 having a substantially U-shape as shown in FIG. 3 and a holding piece 52 attached to the lower side of the holding body 51. On the upper surface of the holding body 51, a pair of left and right support pieces 54a and 54b, which are a left support piece 54a and a right support piece 54b, are protruded upward. The distance between the left support piece 54a and the right support piece 54b is set wider than the width of the main body 42 of the fixing member 4 described later, and the main body 42 can be inserted therebetween. Then, the holding body 51 is put on the upper outer periphery of the casing 11 of the grinder body 1 from above, and the holding piece 52 is put on the lower outer periphery of the casing 11 of the grinder body 1 from below. Bolts 53a, 53a passing through screw insertion holes formed in each of the holding body 51 and the holding piece 52 are screwed into the nuts 53b, 53b and tightened. Nips the casing 11 disposed therebetween.
【００２０】 固定部材４は、図１〜図３に示すように、後端側に、操作把持部２を固定する 固定部４１を備えている。この固定部４１は、筒状をなし、内部に操作把持部２ を嵌挿し得るようになされている。又、固定部４１の上面には、前後方向に伸ば された縦溝４１ｂと、縦溝４１ｂの左右両側に形成された左右一対のボルト嵌挿 孔を有する締め付け用片４１ｃ、４１ｃとが備えられている。そして、この固定 部４１に、操作把持部２の前部を嵌挿した後、締め付け用片４１ｃ、４１ｃ各々 のボルト嵌挿孔に通した締め付けボルト４１ｅとそれに螺合させたナット４１ｄ とを締め付けることにより、縦溝４１ｂを介して内部に嵌挿した操作把持部２を 外周側から締め付けて固定している。As shown in FIGS. 1 to 3, the fixing member 4 includes a fixing portion 41 on the rear end side for fixing the operation grip portion 2. The fixing portion 41 is formed in a cylindrical shape, so that the operation holding portion 2 can be inserted therein. The upper surface of the fixing portion 41 is provided with a longitudinal groove 41b extending in the front-rear direction, and fastening pieces 41c, 41c having a pair of left and right bolt fitting holes formed on both left and right sides of the longitudinal groove 41b. Have been. Then, after the front portion of the operation grip portion 2 is inserted into the fixing portion 41, the tightening bolts 41e inserted through the bolt insertion holes of the tightening pieces 41c, 41c and the nut 41d screwed thereto are tightened. Thus, the operation grip portion 2 inserted and inserted into the inside via the vertical groove 41b is fastened and fixed from the outer peripheral side.
【００２１】 又、固定部材４の前部側は、上面と、上面から下方に延設された左面及び右面 を有する断面コの字状の本体部４２と、回動軸４３と、付勢バネ４４、４４とを 備えている。回動軸４３の中央部は、本体部４２の左面及び右面の下方に渡され るようにして溶接等の固定手段により固定されている。回動軸４３の左右両端側 は、挾持本体５１の左支持片５４ａ、右支持片５４ｂ各々に穿設された軸嵌挿孔 ５４ｃ、５４ｃに通されることにより、挾持本体５１に回動自在に支持されてお り、これにより、操作把持部２とケーシング１１とが互いに回動自在に接続され ている。付勢バネ４４、４４は、コイルバネから構成され、軸嵌挿孔５４ａ、５ ４ａから挾持本体５１の左右両側各々に突出した回動軸４３の左右両端部各々に 通され、一端側が左支持片５４ａ、右支持片５４ｂ各々に係止され、他端側が回 動軸４３夫々に係止されており、回動軸４３の回動に伴って回動軸４３を付勢す る。又、この付勢バネ４４、４４によって、付勢バネ４４、４４に外力を加えて いない図１に示す通常状態で、操作把持部２の軸方向と研磨部１３の研磨面１４ とのなす角度Ａが１０〜１５°をなした状態に維持されている。そして、この外 力を加えていない通常状態での研磨面１４に対する操作把持部２の位置を回動始 端位置とし、この位置から操作把持部２の把持部２１を付勢バネ４４、４４に抗 して図１の上方側に引き上げれば、操作把持部２は、回動軸４３を軸にして回動 始端位置から回動し、グラインダー本体１の研磨面１４に対して徐々に大きい角 度Ａになるようになされている。The front side of the fixing member 4 has an upper surface, a main body portion 42 having a U-shaped cross section having a left surface and a right surface extending downward from the upper surface, a rotating shaft 43, and a biasing spring. 44, 44 are provided. The central portion of the rotating shaft 43 is fixed by a fixing means such as welding so as to extend below the left and right surfaces of the main body 42. The left and right ends of the rotating shaft 43 pass through shaft insertion holes 54c, 54c formed in the left support piece 54a and the right support piece 54b, respectively, of the holding body 51, so that the holding body 51 is rotatable. The operating grip 2 and the casing 11 are rotatably connected to each other. The biasing springs 44, 44 are formed by coil springs, and are passed through the shaft fitting insertion holes 54a, 54a to the left and right ends of the rotating shaft 43 projecting to the left and right sides of the holding body 51, respectively. The other end 54a is locked to each of the rotating shafts 43a and 54b, and the other side is locked to each of the rotating shafts 43, and urges the rotating shaft 43 as the rotating shaft 43 rotates. In the normal state shown in FIG. 1 in which no external force is applied to the biasing springs 44, 44, the angle formed between the axial direction of the operation gripper 2 and the polishing surface 14 of the polishing section 13 by the biasing springs 44, 44. A is maintained at 10 to 15 °. Then, the position of the operation gripper 2 with respect to the polishing surface 14 in a normal state where no external force is applied is set as a rotation start end position, and the gripper 21 of the operation gripper 2 is moved from this position to the biasing springs 44, 44. When the operation gripper 2 is lifted upward in FIG. 1, the operation gripper 2 rotates from the rotation start end position about the rotation shaft 43, and gradually becomes larger with respect to the polishing surface 14 of the grinder body 1. It is made to be degree A.
【００２２】 又、本実施形態における接続部材３には、回動始端位置調整手段と、回動終端 位置規制手段が備えられている。回動始端位置調整手段は、グラインダー本体１ 研磨面１４に対する操作把持部２の回動始端位置を調節するためのもので、図２ 〜図４に示すように接続部材３の固定部材４に形成された係止部材当接部６２と 、固定部材４に対して接近・対向する方向に挾持本体５１に移動可能に係止され た係止部材６１とを備えている。係止部材当接部６２は、固定部材４の本体部４ ２の右側面における下面から半円形状に形成された孔から構成されている。係止 部材６１は、雄ねじ部６１ａを有するボルト部材６１から構成されており、挾持 本体５１の右支持片５４ｂにおける軸嵌挿孔５４ａの後方側且つ上方側に設けら れたネジ孔６３に螺合されることにより、ボルト部材６１の回動操作に伴って、 ボルト部材６１の雄ねじ部６１ａの先端が、固定部材４の本体部４２の右側方位 置から下方位置にくるまでの範囲を左右方向に移動する。又、係止部材当接部６ ２に対する係止部材６１の配設位置は、操作把持部２が上記の図１、図４に示す 位置から回動されて、図８に示すようにグラインダー本体１に対して６０〜７０ °の角度Ａにされると係止部材６１の雄ねじ部６１ａと操作把持部２の係止部材 当接部６２とが同高さになって、係止部材６１の雄ねじ部６１ａが係止部材当接 部６２の下方側に入り込めるようになされている。Further, the connecting member 3 in the present embodiment is provided with a turning start position adjusting means and a turning end position regulating means. The turning start end position adjusting means is for adjusting the turning start end position of the operation grip portion 2 with respect to the grinding surface 14 of the grinder body 1 and is formed on the fixing member 4 of the connecting member 3 as shown in FIGS. And a locking member 61 movably locked to the holding body 51 in a direction approaching and facing the fixing member 4. The locking member contact portion 62 is formed of a hole formed in a semicircular shape from the lower surface on the right side surface of the main body portion 42 of the fixing member 4. The locking member 61 is composed of a bolt member 61 having a male screw portion 61a, and is screwed into a screw hole 63 provided on the right support piece 54b of the holding body 51 on the rear side and above the shaft fitting hole 54a. As a result, the range from the right end of the main body portion 42 of the fixing member 4 to the lower position is set in the left-right direction with the turning operation of the bolt member 61. Go to The position of the locking member 61 with respect to the locking member abutting portion 62 is such that the operation gripper 2 is rotated from the position shown in FIGS. When the angle A is 60 to 70 ° with respect to 1, the male screw portion 61a of the locking member 61 and the locking member abutment portion 62 of the operation grip portion 2 become the same height, and the locking member 61 The male screw portion 61a can enter the lower side of the locking member contact portion 62.
【００２３】 回動終端位置規制手段は、回動始端位置から回動する操作把持部２の回動の終 端位置を規制するためのもので、本実施形態では、図４に示すように固定部材４ の本体部４２に取り付けられた規制部材７から構成されている。この規制部材７ は、棒状を呈し、前端面に挾持本体５１の上面に当接させる当接部７１を備えて いる。そして、規制部材７の後端側が固定部材４の本体部４２における上面に固 定されることにより、当接部７１が固定部材４の本体部４２から前方に突出され ている。この当接部７１の本体部４２から突出量は、操作把持部２をグラインダ ー本体１に対して回動始端位置から回動させて操作把持部２とグラインダー本体 １とのなす角度Ａが略９０°になった際に、図９に示すように当接部７１が挾持 本体５１の上面に当接するようになされている。The rotation end position restricting means is for restricting the rotation end position of the operation gripper 2 that rotates from the rotation start end position, and in this embodiment, is fixed as shown in FIG. The regulating member 7 is attached to the main body 42 of the member 4. The restricting member 7 has a rod-like shape, and has a contact portion 71 on the front end surface for contacting the upper surface of the holding body 51. The rear end side of the regulating member 7 is fixed to the upper surface of the main body 42 of the fixing member 4, so that the contact portion 71 protrudes forward from the main body 42 of the fixing member 4. The amount of protrusion of the contact portion 71 from the main body portion 42 is substantially equal to the angle A formed between the operation grip portion 2 and the grinder main body 1 by rotating the operation grip portion 2 from the rotation start end position with respect to the grinder main body 1. When the angle reaches 90 °, the contact portion 71 comes into contact with the upper surface of the holding body 51 as shown in FIG.
【００２４】 次に、ハンドグラインダーの吸塵装置８について説明する。この吸塵装置８は 、グラインダー本体１の研磨部１３で被研磨材を研磨した研磨粉を吸引して集め るためのもので、この実施形態での吸塵装置８は、図１、図２に示すように研磨 粉を吸引して収納する吸塵装置本体８１と、グラインダー本体１の研磨部１３を 上方側から覆った被覆部材８２と、研磨粉を被覆部材８２から吸塵装置本体８１ に送る移送路８３とを備えている。吸塵装置本体８１は、図示しないが内部にモ ータや研磨粉収納部等を備えている。Next, the dust suction device 8 of the hand grinder will be described. The dust suction device 8 is for sucking and collecting the polishing powder obtained by polishing the material to be polished by the polishing unit 13 of the grinder main body 1. The dust suction device 8 in this embodiment is shown in FIGS. Device 81 that sucks and stores the abrasive powder, a covering member 82 that covers the polishing portion 13 of the grinder body 1 from above, and a transfer path 83 that sends the abrasive powder from the covering member 82 to the dust absorbing device body 81. And Although not shown, the dust suction device main body 81 includes a motor, an abrasive powder storage unit, and the like inside.
【００２５】 被覆部材８２は、図５(A)(B)に示すように合成樹脂製の上壁８４と、合成ゴム 製の側壁８５とを備えている。上壁８４は、円形部８４ａと、直線部８４ｂとを 備えており、円板の一部をカットした形状を呈するものから構成されている。円 形部８４ａの径は、グラインダー本体１の研磨部１３の径よりやや大きい。この 円形部８４ａの外周部には、下方に延設された鍔８４ｃを備え、この鍔８４ｃの 外周に、径外方向に突設された三本の突起８４ｄ…８４ｄを備えている。又、円 形部８４ａの芯部には、上面から下面に貫通した本体取り付け用孔８４ｅが備え られている。そして、この本体取り付け用孔８４ｅが、グラインダー本体１の回 転軸１２を通すようにしてグラインダー本体１におけるケーシング１１の下部に 取り付けられることにより、上壁８４がグラインダー本体１に取り付けられてい る。又、上壁８４がグラインダー本体１に取り付けられることにより、グライン ダー本体１の研磨部１３は上壁８４によって上方側から覆われている。The covering member 82 includes an upper wall 84 made of a synthetic resin and a side wall 85 made of a synthetic rubber, as shown in FIGS. The upper wall 84 includes a circular portion 84a and a straight portion 84b, and is formed of a shape obtained by cutting a part of a disk. The diameter of the circular portion 84a is slightly larger than the diameter of the polishing portion 13 of the grinder body 1. The outer periphery of the circular portion 84a is provided with a flange 84c extending downward, and the outer periphery of the flange 84c is provided with three projections 84d... 84d projecting radially outward. The core of the circular portion 84a is provided with a body mounting hole 84e penetrating from the upper surface to the lower surface. The upper wall 84 is attached to the grinder main body 1 by attaching the main body mounting hole 84e to a lower portion of the casing 11 of the grinder main body 1 so as to pass through the rotation shaft 12 of the grinder main body 1. In addition, since the upper wall 84 is attached to the grinder main body 1, the polishing portion 13 of the grinder main body 1 is covered by the upper wall 84 from above.
【００２６】 側壁８５は、上部側の内周に三本の突起受容溝８５ａ…８５ａが備えられてい る。これらの突起受容溝８５ａ…８５ａは、上記上壁８４における円形部８４ａ の突起８４ｄ…８４ｄとで、上壁８４と側壁８５とを取り付ける取り付け手段を なすとともに、後述する側壁８５の下端面８７の上下位置調整手段をなすもので ある。そして、突起受容溝８５ａ…８５ａにおける上方側の三つが、上壁８４に おける円形部８４ａの突起８４ｄ…８４ｄ各々に嵌め入れられることにより、側 壁８５が円形部８４ａの外周全体に取り付けられている。又、側壁８５が円形部 ８４ａの外周全体に取り付けられることにより、グラインダー本体１の研磨部１ ３は側壁８５によって側方側から覆われている。そして、この下端面８７は、グ ラインダー本体１の研磨部１３における研磨部１３の研磨面１４よりやや上方位 置になるように設定されており、グラインダー本体１の研磨部１４を被研磨材Ｆ に当てた際に、被研磨材Ｆと下端面８７との間に隙間８８が形成できるようにな されている。The side wall 85 is provided with three projection receiving grooves 85 a. The projection receiving grooves 85a... 85a together with the projections 84d... 84d of the circular portion 84a of the upper wall 84 form attachment means for attaching the upper wall 84 and the side wall 85. It serves as a vertical position adjusting means. The upper three sides of the protrusion receiving grooves 85a ... 85a are fitted into the respective protrusions 84d ... 84d of the circular portion 84a on the upper wall 84, so that the side wall 85 is attached to the entire outer periphery of the circular portion 84a. I have. Further, since the side wall 85 is attached to the entire outer periphery of the circular portion 84a, the polishing portion 13 of the grinder body 1 is covered by the side wall 85 from the side. The lower end surface 87 is set so as to be slightly above the polishing surface 14 of the polishing section 13 in the polishing section 13 of the grinder main body 1, and the polishing section 14 of the grinder main body 1 The gap 88 can be formed between the material to be polished F and the lower end face 87 when the contact is made.
【００２７】 また、この下端面８７は、上記の上壁８４の突起８４ｄ…８４ｄと側壁８５の 突起受容溝８５ａ…８５ａとで構成された上下位置調整手段によって上下位置を 調整できるようになされている。詳しくは、例えば下端面８７の位置を下方側に 下げる場合は、上方側の三本の突起受容溝８５ａ…８５ａを上壁８４の突起８４ ｄ…８４ｄ各々に嵌め入れた図５(B) に示すように状態から、図６(A) に示すよ うに最上方側の突起受容溝８５ａを、上壁８４における下方側の突起８４ｄ、８ ４ｄに嵌め入れることにより、下端面８７の位置を下方位置に下げることができ る。一方、下端面８７の位置を上方側に下げる場合は、上記と逆に図５(B) に示 すように状態から、図６(B) に示すように最下方と中央部との三つの突起受容溝 ８５ａ…８５ａを上壁８４の突起８４ｄ…８４ｄ各々に嵌め入れることにより、 下端面８７の位置を上方位置に上げることができる。The lower end surface 87 can be adjusted in vertical position by vertical position adjusting means constituted by the projections 84d... 84d of the upper wall 84 and the projection receiving grooves 85a. I have. More specifically, for example, when lowering the position of the lower end face 87 to the lower side, FIG. 5B in which the three projection receiving grooves 85a... 85a on the upper side are fitted into the projections 84d. As shown in FIG. 6A, the uppermost projection receiving groove 85a is fitted into the lower projections 84d and 84d of the upper wall 84 from the state shown in FIG. Position. On the other hand, when lowering the position of the lower end face 87 upward, contrary to the above, from the state shown in FIG. 5B, the lowermost part and the central part as shown in FIG. By fitting the protrusion receiving grooves 85a ... 85a into the protrusions 84d ... 84d of the upper wall 84, the position of the lower end face 87 can be raised to an upper position.
【００２８】 又、このようにして上壁８４の円形部８４ａに側壁８５の取り付けられた被覆 部材８２は、前部側に開口部８６が形成され、この開口部８６からグラインダー 本体１の研磨部１３の前一部が露出するようになされている。In addition, the covering member 82 having the side wall 85 attached to the circular portion 84a of the upper wall 84 has an opening 86 formed at the front side, and the opening 86 is formed from the opening 86 to the polishing portion of the grinder main body 1. The front part 13 is exposed.
【００２９】 移送路８３は、本実施形態では、図１、図２に示すように蛇腹状の前ホース８ ３ａ及び後ホース８３ｂと、上記の操作把持部２とから構成されている。前ホー ス８３ａの前端側は、被覆部材８２の上壁８４に穿設された接続孔８４ｆ（図５ (A) に示す）に接続され、後端側が操作把持部２の前端側の内部に接続されてい る。後ホース８３ｂの前端側は、操作把持部２の後端側の内部に接続され、後端 側が吸塵装置本体８１の研磨粉収納部に接続されている。このようにして、前ホ ース８３ａと後ホース８３ｂと操作把持部２とが、被覆部材８２と吸塵装置本体 ８１との間に、両者に連通した一本の移送路８３を形成し、被覆部材８２内の研 磨粉を吸塵装置本体８１まで移送する。In the present embodiment, the transfer path 83 includes a bellows-shaped front hose 83a and a rear hose 83b, and the above-described operation grip part 2, as shown in FIGS. The front end of the front hose 83a is connected to a connection hole 84f (shown in FIG. 5A) formed in the upper wall 84 of the covering member 82, and the rear end of the front hose 83a is inside the front end of the operation grip portion 2. It is connected. The front end side of the rear hose 83b is connected to the inside of the rear end side of the operation grip part 2, and the rear end side is connected to the polishing powder storage part of the dust suction device main body 81. In this way, the front hose 83a, the rear hose 83b, and the operation gripper 2 form a single transfer path 83 communicating between the covering member 82 and the dust-collecting device main body 81, and The polishing powder in the member 82 is transferred to the dust-absorbing device main body 81.
【００３０】 次に、以上のように構成されたハンドグラインダーの使用方法について説明す る。 例えば被研磨材Ｆとして床面を研磨する場合は、ボルト部材６１の雄ねじ部６ １ａの先端を、固定部材４における本体部４２の右側面の右側方位置にくるよう にし（図２、図３の状態）、本体部４２の係止部材当接部６２が雄ねじ部６１ａ に当たらないようにしておく。この状態での操作把持部２は、外力を加えていな い状態で、図４に示すようにグラインダー本体１に対して１０〜１５°の角度Ａ をなした位置に維持され、この位置が回動始端位置になる。そして、この状態か らグラインダー本体１を作動させて研磨部１３を回転させるとともに、操作把持 部２の把持部２１を把持してグラインダー本体１の研磨面１４を、被研磨面とし ての床面に当てる。又、研磨面１４を床面に当てた状態では、被覆部材８２の側 壁８５の下端面８７と被研磨材Ｆとの間に隙間８８が形成される。Next, a method of using the hand grinder configured as described above will be described. For example, when the floor surface is polished as the material to be polished F, the tip of the male screw portion 61a of the bolt member 61 is set to the right side position of the right side of the main body portion 42 of the fixing member 4 (FIGS. 2 and 3). State), the locking member contact portion 62 of the main body portion 42 is prevented from contacting the male screw portion 61a. In this state, the operation gripper 2 is maintained at a position at an angle A of 10 to 15 ° with respect to the grinder body 1 as shown in FIG. It becomes the movement start end position. Then, from this state, the grinder body 1 is operated to rotate the polishing section 13, and the gripping section 21 of the operation gripping section 2 is gripped, and the polishing surface 14 of the grinder body 1 is used as a floor surface to be polished. Guess. When the polishing surface 14 is in contact with the floor surface, a gap 88 is formed between the lower end surface 87 of the side wall 85 of the covering member 82 and the workpiece F.
【００３１】 そして、研磨した研磨粉は、被覆部材８２内から移送路８３を通って、吸塵装 置本体８１に移送され、これにより、研磨粉が周部に飛び散るようなことを防止 できる。又、その際、被覆部材８２の側壁８５の下端面８７と被研磨材Ｆとの間 に隙間８８が形成されているため、研磨粉を吸引する際に下端面８７が被研磨材 Ｆに吸い着いてしまうようなことを防止できる。また、例えば図１０に示すよう に被研磨材Ｆに対して研磨部１３が傾いて側壁８５の下端面８７が被研磨材Ｆに 当接した場合でも、被覆部材８２の側壁８５を合成ゴムから構成しているため、 側壁８５が撓んで研磨部１３の研磨面１４の一部を被研磨材Ｆに当接した状態に でき、研磨面１４の全体が被研磨材Ｆから浮き上がってしまうようなことを防止 できる。また、被覆部材８２の開口部８６からグラインダー本体１の研磨部１３ の前一部を露出させているため、床面のコーナー部を、被覆部材８２が邪魔にな ることなく研磨することができる。一方、床面に研磨面１４を当てながらハンド グラインダー全体を移動させる操作に際し、被覆部材８２から吸塵装置本体８１ までの間に、移送路として別途にホースを操作把持部２の側方側に並設している 場合は、ホースが邪魔になってハンドグラインダー全体の移動操作をし難いが、 本実施形態では、操作把持部２を移送路８３の一部にしているため、ハンドグラ インダー全体を容易に移動させることができ、操作容易なものにできる。又、研 磨後、被覆部材８２の側壁８５の下端面８７が擦り減った場合には、上述のよう に図５(B) に示す状態から、図６(A) に示すように最上方側の突起受容溝８５ａ を、上壁８４における下方側の突起８４ｄに嵌め入れることにより、下端面８７ の位置を下方位置に下げることができ、下端面８７と被研磨材Ｆとの間の隙間８ ８を略一定に保持できる。一方、研磨面１４が擦り減った場合には、上述のよう に図５(B) に示す状態から、図６(B) に示すように最下方と中央部との三つの突 起受容溝８５ａ…８５ａを上壁８４の突起８４ｄ…８４ｄ各々に嵌め入れること により、下端面８７の位置を下方位置に下げることができ、下端面８７と被研磨 材Ｆとの間の隙間８８を略一定に保持できる。又、研磨面１４が擦り減って下端 面８７の位置を下方位置に下げる場合において、側壁８５の下端部を刃物等で切 断して側壁８５の下端面８７上下位置を調整するようにしても良い。詳しくは、 被覆部材８２の側壁８５を柔軟性のない硬い素材から構成している場合には、側 壁８５の下端部を刃物等で簡単に切断できないが、本実施形態では、側壁８５を 合成ゴムから構成しているため、側壁８５の下端部を刃物等で容易に切断でき、 研磨面１４の擦り減った分だけ切断して側壁８５の下端面８７の上下位置を調整 できる。Then, the polished polishing powder is transferred from the inside of the covering member 82 to the dust-absorbing device main body 81 through the transfer path 83, thereby preventing the polishing powder from scattering around. Also, at this time, since the gap 88 is formed between the lower end surface 87 of the side wall 85 of the covering member 82 and the material to be polished F, the lower end surface 87 is sucked into the material to be polished F when sucking the abrasive powder. It can be prevented from arriving. Also, for example, as shown in FIG. 10, even when the polishing portion 13 is inclined with respect to the workpiece F and the lower end face 87 of the side wall 85 contacts the workpiece F, the sidewall 85 of the covering member 82 is made of synthetic rubber. Since the side wall 85 is bent, a part of the polishing surface 14 of the polishing portion 13 can be brought into contact with the workpiece F, and the entire polishing surface 14 rises from the workpiece F. Can be prevented. Further, since the front part of the polishing portion 13 of the grinder body 1 is exposed from the opening 86 of the covering member 82, the corner of the floor can be polished without the covering member 82 being in the way. . On the other hand, during the operation of moving the entire hand grinder while bringing the polishing surface 14 into contact with the floor surface, a separate hose is provided as a transfer path between the covering member 82 and the dust suction device main body 81 on the side of the operation gripper 2. If it is installed, the hose hinders the movement of the entire hand grinder, but in the present embodiment, since the operation gripper 2 is a part of the transfer path 83, the entire hand grinder can be easily formed. And can be easily operated. When the lower end face 87 of the side wall 85 of the covering member 82 is worn out after the polishing, the state shown in FIG. 5B is changed from the state shown in FIG. 5B to the uppermost side as shown in FIG. The lower end surface 87 can be lowered to the lower position by fitting the projection receiving groove 85a of the upper surface 84 into the lower protrusion 84d of the upper wall 84, and the gap 8 between the lower end surface 87 and the workpiece F can be reduced. 8 can be kept substantially constant. On the other hand, when the polishing surface 14 is worn down, the state shown in FIG. 5B is changed from the state shown in FIG. 5B to the three protrusion receiving grooves 85a at the lowermost portion and the central portion as shown in FIG. .. 85d into the respective projections 84d... 84d of the upper wall 84, the position of the lower end surface 87 can be lowered to a lower position, and the gap 88 between the lower end surface 87 and the workpiece F can be made substantially constant. Can hold. Further, when the polishing surface 14 is worn down and the position of the lower end surface 87 is lowered to the lower position, the lower end of the side wall 85 may be cut with a knife or the like to adjust the vertical position of the lower end surface 87 of the side wall 85. good. More specifically, when the side wall 85 of the covering member 82 is made of a rigid and inflexible material, the lower end of the side wall 85 cannot be easily cut with a blade or the like, but in the present embodiment, the side wall 85 is synthesized. Since it is made of rubber, the lower end of the side wall 85 can be easily cut with a knife or the like, and the vertical position of the lower end surface 87 of the side wall 85 can be adjusted by cutting the polished surface 14 by the reduced amount.
【００３２】 一方、例えば天井を研磨する場合は、図１、図４に示す状態から、付勢バネ４ ４、４４に抗して操作把持部２をグラインダー本体１に対して上方側に回動させ るとともに、図７に示すようにボルト部材６１を回動操作してボルト部材６１の 雄ねじ部６１ａの先端を、固定部材４における本体部４２の下方側にくるように する。これにより、付勢バネ４４、４４に抗したグラインダー本体１に対する操 作把持部２の回動操作を止めると、操作把持部２は、付勢バネ４４、４４の付勢 力によって元の図１、図３に示す状態に戻ろうとするが、本体部４２に設けた係 止部材当接部６２がボルト部材６１の雄ねじ部６１ａに当接して止まり、その状 態で維持される。この状態では、操作把持部２は、外力を加えていない状態で、 図８に示すようにグラインダー本体１に対して６０〜７０°の角度Ａをなした位 置になり、この位置がグラインダー本体１に対する回動始端位置になる。そして 、この状態から、操作把持部２の把持部を把持してグラインダー本体１の研磨面 １４を天井に当てる。その際、操作把持部２がグラインダー本体１に対して６０ 〜７０°の角度Ａをなしているため、背の低い人でも容易にグラインダー本体１ の研磨面１４を天井に当てることができる。しかも、仮に操作把持部２を垂直に した場合でも研磨面１４が天井面に対して十分に傾いた状態になっているため、 グラインダー本体１の研磨部１３の外周を天井に当てることなく、確実に研磨面 １４を天井に当てることができ、研磨部１３の外周が天井に当った場合の研磨部 １３の回転によるグラインダー本体１の天井からの撥ね飛ばされを防止でき、安 全に操作を行い得るものにできる。On the other hand, when polishing the ceiling, for example, the operation gripper 2 is rotated upward with respect to the grinder main body 1 against the urging springs 44 and 44 from the state shown in FIGS. At the same time, as shown in FIG. 7, the bolt member 61 is rotated so that the distal end of the male screw portion 61 a of the bolt member 61 is located below the main body portion 42 of the fixing member 4. As a result, when the turning operation of the operation gripper 2 with respect to the grinder main body 1 against the urging springs 44, 44 is stopped, the operating gripper 2 is moved by the urging force of the urging springs 44, 44 as shown in FIG. 3, the engaging member contact portion 62 provided on the main body portion 42 comes into contact with the male screw portion 61 a of the bolt member 61 and stops, and is maintained in that state. In this state, when no external force is applied, the operation gripper 2 is positioned at an angle A of 60 to 70 ° with respect to the grinder main body 1 as shown in FIG. 1 is the rotation start position. Then, from this state, the gripping portion of the operation gripping portion 2 is gripped, and the polishing surface 14 of the grinder body 1 is brought into contact with the ceiling. At this time, since the operation gripping portion 2 forms an angle A of 60 to 70 ° with respect to the grinder main body 1, even a short person can easily bring the polishing surface 14 of the grinder main body 1 into contact with the ceiling. Moreover, even if the operation gripping part 2 is vertical, the polishing surface 14 is in a state of being sufficiently inclined with respect to the ceiling surface. The grinding surface 14 can be brought into contact with the ceiling, and when the outer periphery of the grinding unit 13 hits the ceiling, the grinding unit 13 can be prevented from being splashed from the ceiling by the rotation of the grinding unit 13, and can be safely operated. Can be gained.
【００３３】 又、研磨面１４を天井に押し当てた状態で、操作把持部２を操作すれば、操作 把持部２がグラインダー本体１に対して６０〜７０°の角度Ａをなした回動始端 位置から回動してグラインダー本体１に対する角度Ａを徐々に大きくできる。そ して、グラインダー本体１に対する操作把持部２の角度Ａが略９０°になると規 制部材７が挾持本体５１の上面に当接し、それ以上の回動が規制され、その状態 で使用できる。グラインダー本体１に対して操作把持部２の角度Ａを略９０°に して使用すると、操作把持部２を突き上げれば研磨面１４を天井に押し当てるこ とができ、グラインダー本体１に対して操作把持部２が傾いている場合より小さ い力で研磨作業を容易に行うことができ、操作容易なものにできる。しかも、規 制部材７を設けていない場合には、グラインダー本体１に対する操作把持部２の 角度Ａを９０°以上にして使用される恐れが生じ、付勢バネ４４、４４に大きな 力がかかって付勢バネ４４、４４のへたりの原因になるが、規制部材７を設けて おくことでこれを防止でき、円滑に使用し得るものにできる。When the operation gripper 2 is operated in a state where the polishing surface 14 is pressed against the ceiling, the operation gripper 2 is turned at an angle A of 60 to 70 ° with respect to the grinder body 1. By rotating from the position, the angle A with respect to the grinder main body 1 can be gradually increased. Then, when the angle A of the operation grip portion 2 with respect to the grinder main body 1 becomes approximately 90 °, the restricting member 7 comes into contact with the upper surface of the holding main body 51, and further rotation is restricted, and the device can be used in that state. When the operation gripper 2 is used at an angle A of about 90 ° with respect to the grinder main body 1, the polishing surface 14 can be pressed against the ceiling if the operation gripper 2 is pushed up. The polishing operation can be easily performed with a smaller force than when the operation gripper 2 is inclined, and the operation can be made easier. In addition, when the regulating member 7 is not provided, there is a possibility that the operating gripper 2 is used at an angle A of 90 ° or more with respect to the grinder main body 1, and a large force is applied to the biasing springs 44. Although this may cause the biasing springs 44, 44 to be set, this can be prevented by providing the regulating member 7 so that the spring can be used smoothly.
【００３４】 また、天井の研磨に際しては、研磨部１３が被覆部材８２によって下方から側 方にかけて覆われることになり、研磨粉が下方側の作業者に落下して作業者の目 に入るようなことを防止でき、研磨作業を円滑に行うことができる。When the ceiling is polished, the polishing portion 13 is covered by the covering member 82 from below to the side, so that the abrasive powder falls to the worker on the lower side and enters the eyes of the worker. Can be prevented, and the polishing operation can be performed smoothly.
【００３５】 尚、本実施形態では、回動始端位置調整手段を、一つの係止部材６１によって 回動始端位置を一回だけ調整できるようにしているが、この形態のものに限らず 、例えば図１１に示すように複数の係止部材６１…６１を設けておき、回動始端 位置を複数回、調整できるようにしても良い。又、係止部材６１を固定部材４の 側方側から固定部材４に接近・対向する方向に移動させる形態のものに限らず、 例えば図１２に示すように、挾持本体５１の左右の両支持片５４ａ（図１２では 左支持片５４ａのみ現れている）の間における固定部材４の下方側に、ネジ孔６ ４ａを有する板状の係止部材支持片６４を左右の両支持片５４ａ、５４ｂに渡し 、この係止部材支持片６４のネジ孔６４ａに、係止部材６１としてのボルト部材 ６１を螺合させてボルト部材６１を上下方向に移動可能に配し、このボルト部材 ６１の雄ねじ部６１ａの先端で固定部材４の下面を受けるようにし、ボルト部材 ６１の回動操作に伴う雄ねじ部６１ａの先端の上下移動によって固定部材４に固 定した操作把持部２の角度を調整するようにしても良い。こうすることにより、 グラインダー本体１に対する操作把持部２の回動始端位置の角度を無段階に調整 し得るものにできる点で有利である。In the present embodiment, the rotation start end position adjusting means can adjust the rotation start end position only once with one locking member 61. However, the present invention is not limited to this embodiment. As shown in FIG. 11, a plurality of locking members 61... 61 may be provided so that the rotation start position can be adjusted a plurality of times. In addition, the locking member 61 is not limited to a configuration in which the locking member 61 is moved from the side of the fixing member 4 in a direction approaching and facing the fixing member 4. For example, as shown in FIG. Under the fixing member 4 between the pieces 54a (only the left support piece 54a is shown in FIG. 12), a plate-shaped locking member support piece 64 having a screw hole 64a is attached to the left and right support pieces 54a, 54b. The bolt member 61 serving as the locking member 61 is screwed into the screw hole 64a of the locking member support piece 64, and the bolt member 61 is disposed so as to be movable in the vertical direction. The lower end of the fixing member 4 is received at the tip of the fixing member 4, and the angle of the operation gripping part 2 fixed to the fixing member 4 is adjusted by moving the tip of the male screw part 61 a up and down with the turning operation of the bolt member 61. May be. This is advantageous in that the angle of the rotation start end position of the operation gripper 2 with respect to the grinder body 1 can be adjusted steplessly.
【００３６】 また、本実施形態では、係止部材６１によってグラインダー本体１に対する操 作把持部２の回動始端位置を、グラインダー本体１に対して操作把持部２のなす 角度が６０〜７０°になる位置に設定しているが、これに限らず、適宜な位置に 設定でき、適宜変更し得る。In the present embodiment, the rotation start end position of the operation gripper 2 with respect to the grinder main body 1 by the locking member 61 is set so that the angle formed by the operation gripper 2 with respect to the grinder main body 1 is 60 to 70 °. Although it is set at a certain position, the position is not limited to this, and can be set at an appropriate position and can be changed as appropriate.
【００３７】 又、本実施形態では、係止部材６１に当接させる係止部材当接部６２を、半円 形状に形成した孔から構成し、係止部材６１と係止部材当接部６２とを面接でき るようにしているが、この形態のものに限らず、孔を設けずに固定部材４におけ る本体部４２の下面にそのまま当てるようにしても良く、適宜変更し得る。Further, in the present embodiment, the locking member contact portion 62 to be brought into contact with the locking member 61 is constituted by a hole formed in a semicircular shape, and the locking member 61 and the locking member contact portion 62 are formed. However, the present invention is not limited to this embodiment, and may be applied to the lower surface of the main body portion 42 of the fixing member 4 without providing a hole, and may be changed as appropriate.
【００３８】 更に、回動終端位置規制手段は、固定部材４の本体部４２に取り付けた規制部 材７から構成する形態のものに限らず、適宜変更できる。又、本実施形態では、 回動終端位置規制手段によってグラインダー本体１に対する操作把持部２の回動 終端位置を、グラインダー本体１に対して操作把持部２のなす角度が略９０°に なる位置に設定しているが、これに限らず、適宜な位置に設定でき、適宜変更し 得る。また、この回動終端位置規制手段は、設けなくても良い。Further, the rotation end position regulating means is not limited to the form composed of the regulating member 7 attached to the main body 42 of the fixing member 4 and can be changed as appropriate. In the present embodiment, the rotation end position of the operation gripper 2 with respect to the grinder main body 1 by the rotation end position regulating means is set to a position where the angle formed by the operation gripper 2 with respect to the grinder main body 1 is substantially 90 °. Although it is set, it is not limited to this and can be set at an appropriate position and can be changed as appropriate. Further, the rotation end position regulating means may not be provided.
【００３９】 一方、本実施形態では、操作把持部２を、移送路８３の一部としているが、こ の形態のものに限らず、例えば図１３に示すように移送路８３の全体を、操作把 持部２とは別体の蛇腹状のホース８３から構成し、操作把持部２に並設するよう にして被覆部材８２と吸塵装置本体８１とを接続するようにしても良く、適宜変 更できる。On the other hand, in the present embodiment, the operation gripper 2 is a part of the transfer path 83, but is not limited to this form, and for example, as shown in FIG. The holding member 2 may be constituted by a bellows-shaped hose 83 which is separate from the holding member 2, and the covering member 82 and the dust suction device main body 81 may be connected so as to be juxtaposed to the operation holding portion 2. it can.
【００４０】 又、本実施形態では、下端面８７の上下位置調整手段を、上壁８４に設けた三 本の突起８４ｂ、８４ｄと側壁８５に設けた四本の突起受容溝８５ａ…８５ａと で構成しているが、この形態のものに限らず、少なくとも突起８４ｂ、８４ｄ又 は突起受容溝８５ａ、８５ａを二本以上設けたものとしておけば良く、例えば突 起８４ｂ又は突起受容溝８５ａの一方を複数、設け、他方を一本だけ設けるよう にしても良く、適宜変更し得る。また、この上下位置調整手段は、上壁８４に設 けた突起８４ｂと側壁８５に設けた突起受容溝８５ａとから構成する形態のもの に限らず、例えば側壁８５に突起を設け、上壁８４に突起受容溝を設けても良い 。更に、この下端面８７の上下位置調整手段は、設けない形態のものであっても 良く、その場合は上壁８４と側壁８５との一方に一つの突起を設け、他方に一つ の突起受容溝を設けておけば良い。In the present embodiment, the means for adjusting the vertical position of the lower end surface 87 is composed of three projections 84 b and 84 d provided on the upper wall 84 and four projection receiving grooves 85 a... 85 a provided on the side wall 85. Although the configuration is not limited to this, it is sufficient that at least two projections 84b and 84d or two or more projection receiving grooves 85a and 85a are provided. For example, one of the projection 84b and the projection receiving groove 85a may be provided. May be provided, and the other may be provided only one, and may be changed as appropriate. Further, the vertical position adjusting means is not limited to a configuration comprising a projection 84b provided on the upper wall 84 and a projection receiving groove 85a provided on the side wall 85. For example, a projection is provided on the side wall 85 and the upper wall 84 is provided. A projection receiving groove may be provided. Further, the means for adjusting the vertical position of the lower end surface 87 may not be provided, in which case one projection is provided on one of the upper wall 84 and the side wall 85 and one projection receiving member is provided on the other. A groove may be provided.
【００４１】 更に、本実施形態では、被覆部材８２の側壁８５全体を合成ゴムから構成して いるが、側壁８５の少なくとも一部を合成ゴムから構成しておけば良く、例えば 被覆部材８２の側壁８５における上部及ぶ下部を合成樹脂から構成し、その間の 部分を合成ゴムから構成しても良く、適宜変更できる。Further, in the present embodiment, the entire side wall 85 of the covering member 82 is made of synthetic rubber, but at least a part of the side wall 85 may be made of synthetic rubber. The upper and lower portions of 85 may be made of synthetic resin, and the portion between them may be made of synthetic rubber, which can be changed as appropriate.
【００４２】 また、被覆部材８２の下端面８７全体を、合成ゴムから構成する形態のものに 限らず、例えば下端面８７の一部又は全体に、硬質部材８７ａを備えたものとし ても良い。詳しくは、例えば図１４(A) に示すように硬質部材８７ａを合成ゴム より硬質の素材、例えば合成樹脂や金属等から薄板状のものに形成し、側壁８５ の下面全体又は一部を覆うようにして側壁８５に取り付けるようにする。こうす ることにより、被研磨材Ｆに対する下端面８７の滑りの良いものにできるととも に、被研磨材Ｆに当接させて摺動させた場合の下端面８７の減りを少なくできる 。しかも、下端面８７の全体が被研磨材Ｆに当接した場合でも、被研磨材Ｆに密 接するようなことがなく、吸引力によって下端面８７が被研磨材Ｆに吸い着いて しまうようなことを防止できる。In addition, the entire lower end surface 87 of the covering member 82 is not limited to a configuration made of synthetic rubber, and for example, a hard member 87 a may be provided on a part or the entirety of the lower end surface 87. More specifically, for example, as shown in FIG. 14A, the hard member 87a is formed in a thin plate shape from a material harder than synthetic rubber, such as synthetic resin or metal, and covers the entire lower surface or a part of the side wall 85. And attached to the side wall 85. By doing so, it is possible to make the lower end face 87 slippery with respect to the material to be polished F, and to reduce the decrease in the lower end face 87 when the lower end face 87 is slid while being in contact with the material to be polished F. Moreover, even when the entire lower end face 87 abuts on the workpiece F, the lower end face 87 does not come into close contact with the workpiece F, and the lower end face 87 adheres to the workpiece F by the suction force. Can be prevented.
【００４３】 又、被覆部材８２の側壁８５の下端面８７に凹凸を有するものにしても良い。 詳しくは、例えば図１４(B) に示すように側壁８５の下端面８７に、凹部８７ｃ と凸部８７ｄとを周方向に沿って交互に形成することにより、下端面８７の全体 を凹凸にする。このような凹凸を有するものにしておくことにより、下端面８７ が被研磨材Ｆに当接した場合でも、凹部８７ｃによって下端面８７と被研磨材Ｆ との間に隙間８８を確保でき、吸引に際して被覆部材８２の外部から被覆部材８ ２の内部に空気を引き込むことができ、被覆部材８２の下端面８７が被研磨材Ｆ に密接して被研磨材Ｆに吸い着いてしまうようなことを防止できる。尚、空気引 込み部として凹凸を設ける形態のものに限らず、例えば図１４(A)(B)中に破線で 示すように被覆部材８２の側壁８５又は上壁８４、或いは側壁８５及び上壁８４ に、内壁から外壁に貫通する貫通孔８９…８９を、一つ又は複数設けるようにし ても良く、このようにしても吸引に際して被覆部材８２の外部から被覆部材８２ の内部に空気を引き込むことができ、被覆部材８２の下端面８７が被研磨材Ｆに 密接して被研磨材Ｆに吸い着いてしまうようなことを防止できる。又、貫通孔８ ９…８９を設ける場合は、側壁８５の下端面８７に凹凸を設けなくても良いが、 凹凸と共に貫通孔８９…８９を設けるようにしても良く、適宜変更し得る。Further, the lower end surface 87 of the side wall 85 of the covering member 82 may have irregularities. More specifically, for example, as shown in FIG. 14B, concave portions 87c and convex portions 87d are alternately formed in the lower end surface 87 of the side wall 85 along the circumferential direction to make the entire lower end surface 87 uneven. . By having such irregularities, even when the lower end surface 87 abuts against the workpiece F, the gap 87 can be secured between the lower end surface 87 and the workpiece F by the concave portion 87c. At this time, air can be drawn into the inside of the covering member 82 from the outside of the covering member 82, so that the lower end surface 87 of the covering member 82 comes into close contact with the polished material F 1 and sticks to the polished material F. Can be prevented. The air intake portion is not limited to the configuration having irregularities, but may be, for example, a side wall 85 or an upper wall 84, or a side wall 85 and an upper wall of the covering member 82 as shown by broken lines in FIGS. One or a plurality of through-holes 89... 89 penetrating from the inner wall to the outer wall may be provided in this case, and even in this case, air is drawn from the outside of the covering member 82 into the inside of the covering member 82 at the time of suction. Accordingly, it is possible to prevent the lower end surface 87 of the covering member 82 from being in close contact with the workpiece F and sticking to the workpiece F. When the through holes 89 ... 89 are provided, the lower end face 87 of the side wall 85 does not need to be provided with the unevenness, but the through holes 89 ... 89 may be provided together with the unevenness, and may be changed as appropriate.
【００４４】[0044]
以上、本願第１の考案は、被覆部材８２によって、被研磨材を研磨した研磨粉 が周部に飛び散ることがなく、又、天井面を研磨する場合でも研磨粉が下方に落 ちて作業者の目に入るおそれがなく、円滑に研磨作業を行い得る。 又、被覆部材８２の側壁８５の少なくとも一部を、合成ゴム等の柔軟性を有す る素材から構成したものとすることにより、グラインダー本体１の研磨部１３が 被研磨材に対して傾いて側壁８５の下端面８７が被研磨材に当った場合でも、側 壁８５が撓んで研磨面１４の一部を当接させた状態にして研磨することができ、 研磨面１４の全体が被研磨材から浮き上がって研磨できなくなるようなことを防 止できる。 更に、側壁８５を合成ゴム等の柔軟性を有する素材から構成しておくことによ り、例えば研磨面１４が擦り減って下端面８７の位置を研磨面１４に対して上方 に上げる必要が生じた場合には、側壁８５の下端部を刃物等で容易に切断でき、 研磨面１４の擦り減った分だけ切断して下端面８７を上方位置に調整できる。 As described above, according to the first invention of the present application, the covering member 82 prevents the polishing powder polished from the material to be polished from scattering to the peripheral portion, and the polishing powder drops downward even when polishing the ceiling surface. The polishing operation can be performed smoothly without fear of getting into the eyes. Further, by forming at least a part of the side wall 85 of the covering member 82 from a material having flexibility such as synthetic rubber, the polishing portion 13 of the grinder body 1 is inclined with respect to the material to be polished. Even when the lower end face 87 of the side wall 85 hits the material to be polished, the side wall 85 can bend and the polishing can be performed with a part of the polishing surface 14 abutting, and the entire polishing surface 14 can be polished. This prevents the material from being lifted off the material and becoming unpolished. Further, by forming the side wall 85 from a flexible material such as synthetic rubber, for example, the polishing surface 14 is worn away, and the position of the lower end surface 87 needs to be raised with respect to the polishing surface 14. In this case, the lower end portion of the side wall 85 can be easily cut with a knife or the like, and the lower end surface 87 can be adjusted to the upper position by cutting the polished surface 14 by the reduced amount.
【００４５】 本願第２の考案は、本願第１の考案の効果に加え、下端面８７が被研磨材に当 接した場合でも被研磨材を容易に滑らせて被研磨材の研磨を円滑に行うことがで きるとともに、下端面８７の減りを抑えることができる。しかも、下端面８７の 全体が被研磨材に当接した場合でも、被研磨材に密接するようなことがなく、吸 引力によって下端面８７が被研磨材に吸い着いてしまうようなことを防止でき、 円滑に研磨部１３を操作できる。According to the second invention of the present application, in addition to the effects of the first invention of the present application, even when the lower end surface 87 comes into contact with the material to be polished, the material to be polished is easily slid and the polishing of the material to be polished is smoothly performed. This can be performed, and the reduction of the lower end surface 87 can be suppressed. In addition, even when the entire lower end surface 87 contacts the workpiece, the lower end surface 87 does not come into close contact with the workpiece, thereby preventing the lower end face 87 from sticking to the workpiece due to the suction force. Thus, the polishing section 13 can be operated smoothly.
【００４６】 本願第３の考案は、本願第１又は第２の考案の効果に加え、下端面８７が被研 磨材に当接した場合でも、下端面８７と被研磨材との間に隙間８８を形成してお くことができ、吸引に際して下端面８７が被研磨材に吸い着いてしまうようなこ とを防止でき、円滑に研磨部１３を操作できる。The third invention of the present application provides the effect of the first or second invention of the present application, and furthermore, even when the lower end face 87 comes into contact with the polished material, a gap is formed between the lower end face 87 and the polished material. The lower end surface 87 can be prevented from sticking to the material to be polished during suction, and the polishing section 13 can be smoothly operated.
【００４７】 本願第４の考案は、本願第１又は第２の考案の効果に加え、下端面８７が被研 磨材に当接した場合でも、空気引込み部８９によって、吸引に際して下端面８７ が被研磨材に吸い着いてしまうようなことを防止でき、円滑に研磨部１３を操作 できる。According to the fourth invention of the present application, in addition to the effects of the first and second inventions of the present application, even when the lower end surface 87 comes into contact with the material to be polished, the lower end surface 87 is sucked by the air drawing portion 89. It is possible to prevent the material from sticking to the material to be polished, and to operate the polishing part 13 smoothly.
【００４８】 本願第５の考案は、複数回の使用により被覆部材８２の側壁８５の下端面８７ や研磨面１４が擦り減った場合でも、上下位置調整手段８５ａ、８４ｄによって 下端面８７と研磨面１４との高さ位置を調整できる。これにより、下端面８７と 被研磨材との間の隙間から研磨粉が周部に飛び散ったり、或いは研磨面１４を被 研磨材に当接させようとしても先に下端面８７が被研磨材に当接したり、更には 、下端面８７が吸塵に際して被研磨材に密着して吸い着いて研磨面１４で被研磨 材を研磨し難くなってしまうようなことを確実に防止でき、円滑に研磨作業を行 うことができる。The fifth invention of the present application is that, even when the lower end surface 87 of the side wall 85 of the covering member 82 and the polishing surface 14 are worn down by a plurality of uses, the lower end surface 87 and the polishing surface are adjusted by the vertical position adjusting means 85a and 84d. 14 and the height position can be adjusted. As a result, the abrasive powder scatters around the periphery from the gap between the lower end surface 87 and the material to be polished, or the lower end surface 87 is first brought into contact with the material to be polished even if the polishing surface 14 is brought into contact with the material to be polished. In addition, it is possible to surely prevent the lower end surface 87 from being in contact with the material to be polished and adsorbing the material to be polished when the dust is absorbed, thereby making it difficult to polish the material to be polished on the polishing surface 14. It can be performed.
【００４９】 本願第６の考案は、操作把持部２の内部を移送路８３の一部としたものとする ことにより、ホースが邪魔になることなく操作把持部２でグラインダー本体１の 研磨部１３を操作でき、操作し易いものにできる。According to a sixth aspect of the present invention, the polishing section 13 of the grinder body 1 is formed by the operation holding section 2 without using a hose by disposing the inside of the operation holding section 2 as a part of the transfer path 83. Can be operated and can be easily operated.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本願考案の一実施形態のハンドグラインダーの
側面図である。FIG. 1 is a side view of a hand grinder according to an embodiment of the present invention.
【図２】本願考案の一実施形態のハンドグラインダーの
平面図である。FIG. 2 is a plan view of a hand grinder according to an embodiment of the present invention.
【図３】接続部材の正面図である。FIG. 3 is a front view of a connecting member.
【図４】図３のIII −III 線断面図である。FIG. 4 is a sectional view taken along line III-III of FIG. 3;
【図５】(A) は、被覆部材の平面図、(B) は、図５(A)
のIV−IV線断面図である。FIG. 5A is a plan view of a covering member, and FIG. 5B is a plan view of the covering member.
FIG. 4 is a sectional view taken along line IV-IV of FIG.
【図６】(A) は、被覆部材の下端面を下方に位置調整し
た状態の被覆部材の断面図であり、(B) は、被覆部材の
下端面を上方に位置調整した状態の被覆部材の断面図で
ある。6A is a cross-sectional view of the covering member in a state where the lower end surface of the covering member is adjusted downward, and FIG. 6B is a sectional view of the covering member in a state where the lower end surface of the covering member is adjusted upward. FIG.
【図７】回動始端位置調節手段によって操作把持部の回
動始端位置を変えた場合における接続部材の正面図であ
る。FIG. 7 is a front view of the connecting member when the rotation start position of the operation grip portion is changed by the rotation start position adjusting means.
【図８】図７のVIII−VIII線断面図である。8 is a sectional view taken along line VIII-VIII in FIG.
【図９】回動終端位置規制手段によって操作把持部の回
動を止めた状態の一部を断面にした側面図である。FIG. 9 is a side view in which a part of a state in which the rotation of the operation gripping portion is stopped by the rotation end position regulating means is a cross section.
【図１０】研磨部が傾いて被覆部材の下端面が被研磨材
に当接した状態の要部拡大説明図である。FIG. 10 is an enlarged explanatory view of a main part in a state in which a polishing part is inclined and a lower end surface of a covering member is in contact with a material to be polished;
【図１１】回動始端位置調節手段の他の実施形態の、一
部を断面にした側面図である。FIG. 11 is a side view, partially in section, of another embodiment of the rotation start end position adjusting means.
【図１２】回動始端位置調節手段の更に他の実施形態
の、一部を断面にした側面図である。FIG. 12 is a side view, partly in section, of still another embodiment of the rotation start end position adjusting means.
【図１３】移送路の他の実施形態に係るハンドグライン
ダー全体の平面図である。FIG. 13 is a plan view of the entire hand grinder according to another embodiment of the transfer path.
【図１４】(A) は、被覆部材の他の実施形態を示す断面
図、(B) は、被覆部材の更に他の実施形態を示す側面図
である。14A is a cross-sectional view showing another embodiment of the covering member, and FIG. 14B is a side view showing another embodiment of the covering member.
【図１５】従来のハンドグラインダーの側面図である。FIG. 15 is a side view of a conventional hand grinder.
１ グラインダー本体 ２ 操作把持部 ３ 接続部材 ４ 固定部材 ５ 挾持部材 ７ 規制部材 ８ 吸塵装置 １３ 研磨部 １４ 研磨面 ４３ 回動軸 ６１ 係止部材 ８１ 吸塵装置本体 ８２ 被覆部材 ８３ 移送路 ８７ 被覆部材の下端面 ８９ 貫通孔 DESCRIPTION OF SYMBOLS 1 Grinder main body 2 Operation holding part 3 Connecting member 4 Fixing member 5 Nipping member 7 Restriction member 8 Dust absorbing device 13 Polishing part 14 Polishing surface 43 Rotating shaft 61 Locking member 81 Dust absorbing device main body 82 Covering member 83 Transfer path 87 Covering member Lower end 89 Through hole
Claims (6)
グラインダー本体(1) に取り付けられた吸塵装置(8) に
おいて、 この吸塵装置(8) が、グラインダー本体(1) の研磨部(1
3)を上方及び側方側から覆う被覆部材(82)を備えること
により、グラインダー本体(1) の研磨部(13)で被研磨材
を研磨した研磨粉を被覆部材(82)を介して吸引し得るよ
うになされ、 この被覆部材(82)が、グラインダー本体(1) の研磨部(1
3)を被研磨材に当てる際に、研磨部(13)の周部側を覆う
側壁(85)を備え、この側壁(85)の少なくとも一部が、合
成ゴム等の柔軟性を有する素材から構成されたものであ
ることを特徴とするハンドグラインダーの吸塵装置。1. A dust suction device (8) attached to a grinder body (1) having a rotatable polishing portion (13) on a lower side, wherein the dust suction device (8) is a polishing portion of the grinder body (1). (1
By providing a covering member (82) that covers 3) from above and from the side, abrasive powder obtained by polishing the material to be polished at the polishing section (13) of the grinder body (1) is sucked through the covering member (82). The covering member (82) is attached to the grinding portion (1) of the grinder body (1).
When applying 3) to the material to be polished, a side wall (85) covering the peripheral side of the polishing portion (13) is provided, and at least a part of the side wall (85) is made of a flexible material such as synthetic rubber. A dust suction device for a hand grinder, wherein the dust suction device is constituted.
に、合成ゴムより硬質の素材からなる硬質部材(87a) が
備えられたものであることを特徴とする請求項１記載の
ハンドグラインダーの吸塵装置。2. A hard member (87a) made of a material harder than synthetic rubber is provided on at least a part of the lower end surface (87) of the side wall (85). Hand grinder dust suction device.
ものであり、この凹凸によって、被覆部材(82)が、吸引
に際して被覆部材(82)の外部から被覆部材(82)の内部に
空気を引き込み得るようになされたものであることを特
徴とする請求項１又は２記載のハンドグラインダーの吸
塵装置。3. The lower end surface (87) of the side wall (85) has irregularities, and the irregularities allow the covering member (82) to be pulled from the outside of the covering member (82) during suction. The dust suction device for a hand grinder according to claim 1 or 2, wherein air can be drawn into the interior of the hand grinder.
え、この空気引込み部(89)によって、被覆部材(82)が、
吸引に際して被覆部材(82)の外部から被覆部材(82)の内
部に空気を引き込み得るようになされたものであること
を特徴とする請求項１又は２記載のハンドグラインダー
の吸塵装置。4. The covering member (82) includes an air drawing part (89), and the covering member (82) is formed by the air drawing part (89).
The dust suction device for a hand grinder according to claim 1 or 2, wherein air can be drawn into the inside of the covering member (82) from outside the covering member (82) during suction.
を調整する上下位置調整手段(84d)(84a)を備え、この上
下位置調整手段(84d)(84a)によって、グラインダー本体
(1) の研磨部(13)に対する下端面(87)の上下位置が調整
され得るようになされたものであることを特徴とする請
求項１〜４のいずれかに記載のハンドグラインダーの吸
塵装置。5. The covering member (82) includes vertical position adjusting means (84d) (84a) for adjusting the vertical position of the lower end surface (87), and the vertical position adjusting means (84d) (84a) causes the grinder to be adjusted. Body
The dust suction device for a hand grinder according to any one of claims 1 to 4, wherein the vertical position of the lower end surface (87) with respect to the polishing portion (13) of (1) can be adjusted. .
被覆部材(82)と、移送路(83)とを備え、この移送路(83)
が、吸塵装置本体(81)と被覆部材(82)との各々に接続さ
れることにより、移送路(83)が研磨粉を被覆部材(82)か
ら吸塵装置本体(81)に移送可能とされ、 グラインダー本体(1) が、研磨部(13)を操作する長尺筒
状の操作把持部(2) を備え、この操作把持部(2) の内部
が、移送路(83)の一部を構成するものであることを特徴
とする請求項１〜５のいずれかに記載のハンドグライン
ダーの吸塵装置。6. A dust suction device (8) comprising: a dust suction device main body (81);
A covering member (82) and a transfer path (83) are provided, and the transfer path (83)
Is connected to each of the dust suction device main body (81) and the covering member (82), so that the transfer path (83) can transfer the abrasive powder from the coating member (82) to the dust suction device main body (81). The grinder body (1) is provided with a long cylindrical operating grip (2) for operating the polishing section (13), and the inside of the operating grip (2) forms a part of the transfer path (83). The dust suction device for a hand grinder according to any one of claims 1 to 5, wherein the dust suction device is configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1999000125U JP3060831U (en) | 1999-01-14 | 1999-01-14 | Hand grinder dust suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1999000125U JP3060831U (en) | 1999-01-14 | 1999-01-14 | Hand grinder dust suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3060831U true JP3060831U (en) | 1999-09-07 |
Family
ID=43194637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1999000125U Expired - Lifetime JP3060831U (en) | 1999-01-14 | 1999-01-14 | Hand grinder dust suction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3060831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142480B1 (en) * | 2010-02-17 | 2012-05-07 | 이일영 | Hand grinder with elasticity suction unit |
| KR101324158B1 (en) * | 2013-04-04 | 2013-11-05 | 정석건설산업 주식회사 | Ecofriendly grinder for dust prevention and ecofriendly grinding method using thereof |
-
1999
- 1999-01-14 JP JP1999000125U patent/JP3060831U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142480B1 (en) * | 2010-02-17 | 2012-05-07 | 이일영 | Hand grinder with elasticity suction unit |
| KR101324158B1 (en) * | 2013-04-04 | 2013-11-05 | 정석건설산업 주식회사 | Ecofriendly grinder for dust prevention and ecofriendly grinding method using thereof |
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