JPH09225841A - Polishing hand tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately polishingly remove a surplus filler filled in the repair part of a metal plate without requiring the skil of a worker. SOLUTION: A polishing hand tool 10 has a main body 14 and a grasp part 16. A polishing member 20 having a polishing work face 12 is attachedly fitted to a support plate 18 fixed to the bottom of the main body 14. A grasp part 16 has the first grasping element 24 attached to the main body 14 so as to be rotatable about an axial line 22 parallel to the polishing work face 12 and the second grasping element 26 formed fixedly on a pair of sides 14b extending in the longitudinal direction of the main body 14. In the case of finish-polishing, a worker lightly grasps the first grasping element 24 with two fingers of his one hand and rectilineally and reciprocatingly slides the polishing work face 12 in a direction nearly perpendicular to the axial line 22 on a polishing object surface with proper pressing force acting on the polishing work face 12. In this case, since the first grasping element 24 can rotate to the main body 14, the polishing work face 1 slides as it naturally copys the irregularity of the polishing object surface.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、研磨作用面を有し
た本体と本体に設けられる握持部とを備えた研磨手工具
に関する。本発明に係る研磨手工具は、例えば自動車車
体外板等の金属板の補修作業において、補修部に充填さ
れた充填材の表面を仕上加工するために、特に好適に使
用できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing hand tool having a main body having a polishing surface and a grip portion provided on the main body. INDUSTRIAL APPLICABILITY The polishing hand tool according to the present invention can be particularly suitably used for finishing the surface of the filler material filled in the repair portion in the repair work of a metal plate such as an automobile body outer plate.

【０００２】[0002]

【従来の技術】自動車車体外板等の金属板の補修作業に
おいて、他物体との衝突や腐食によって金属板に生じた
穴や窪みに、パテ等の補修用充填材を充填する補修方法
は周知である。充填材を用いた補修作業では、一般に充
填材はペースト状態で補修部に幾分過剰に肉盛りされ
る。補修部周辺の金属板表面から突出する余分な充填材
は、その固化後に研磨作業により除去される。2. Description of the Related Art In repairing a metal plate such as a car body outer plate, a repairing method for filling a hole or a recess formed in the metal plate due to a collision with another object or a corrosion with a filling material such as putty is well known. Is. In the repair work using the filler, the filler is generally overlaid in a paste state in the repair portion to some extent. Excess filler protruding from the surface of the metal plate around the repaired portion is removed by a polishing operation after the solidification.

【０００３】この研磨作業においては、多様な立体的広
がりを有する金属板表面の所望の補修箇所を所望粗さに
研磨するために、手持操作可能な研磨装置や研磨手工具
が使用される。研磨装置は一般に、軸方向端面に研磨作
用面を有する板状研磨部材と、研磨部材を軸に関して回
転駆動する空気式や電気式の駆動部とを備え、作業者が
研磨装置を手で保持して研磨作用面を研磨対象表面に押
し付けた状態で研磨作用面を回転駆動することにより、
広い面積に亙り高能率の研磨作業を行なうことができ
る。これに対し研磨手工具は、作業者が片手で自在に操
作できる程度の寸法及び重量を有した本体に研磨作用面
と握持部とを備え、作業者が研磨作用面を研磨対象表面
に押し付けた状態で握持部を握持した手を往復動作する
ことにより、比較的狭い面積で少研磨量の研磨作業を行
なうのに適する。In this polishing operation, a hand-operable polishing device or a polishing hand tool is used to polish a desired repaired portion on the surface of a metal plate having various three-dimensional spreads to a desired roughness. The polishing apparatus generally includes a plate-shaped polishing member having a polishing action surface on an axial end surface, and a pneumatic or electric drive unit that rotationally drives the polishing member about an axis, and an operator holds the polishing apparatus by hand. By rotating the polishing surface while pressing the polishing surface against the surface to be polished,
Able to perform highly efficient polishing work over a wide area. On the other hand, the polishing hand tool has a polishing action surface and a grip portion on a main body having a size and weight that can be freely operated by an operator with one hand, and the operator presses the polishing action surface against the surface to be polished. By reciprocating the hand holding the gripping portion in this state, it is suitable for performing a small amount of polishing work in a relatively small area.

【０００４】[0004]

【発明が解決しようとする課題】作業者が研磨装置や研
磨手工具を用いて研磨対象表面を研磨する際には、研磨
装置や研磨手工具を研磨対象表面に押し付ける力を適当
に調整することが肝要である。過度の押し付け力を加え
た場合には、研磨対象表面を削り過ぎてしまい、上記の
補修作業では充填材部分が周囲の金属板表面よりも凹ん
でしまう危惧が生じる。特に、従来の研磨手工具は、研
磨作用面と握持部とが固定的に連結されており、作業者
が研磨手工具を研磨対象表面に沿って往復摺動させる際
に、工具を握持した手から押し付け力を過剰に加えてし
まい易い構造を有するので、押し付け力を一層慎重に調
整する必要がある。When an operator polishes a surface to be polished by using a polishing device or a polishing hand tool, the force for pressing the polishing device or the polishing hand tool against the surface to be polished should be adjusted appropriately. Is essential. If an excessive pressing force is applied, the surface to be polished will be excessively shaved, and in the above repair work, there is a fear that the filler portion will be recessed from the surrounding metal plate surface. Particularly, in the conventional polishing hand tool, the polishing action surface and the grip portion are fixedly connected, and when the operator reciprocally slides the polishing hand tool along the surface to be polished, the tool is gripped. The pressing force needs to be adjusted more carefully because it has a structure in which the pressing force is likely to be excessively applied from the hand.

【０００５】また、研磨手工具を用いて補修部の余分な
充填材を研磨除去する場合、その仕上段階では、充填材
表面とその周囲の金属板表面との段差を完全に排除すべ
く、工具の研磨作用面をまず金属板表面に平行に当接し
た後、その平行状態を維持するように押し付け力を加え
ながら金属板表面と充填材表面との間を直線的に往復摺
動させて、充填材を連続的に研磨する作業が必要とな
る。このとき従来の研磨手工具では、作業者が片手で握
持部をしっかりと握った状態でその手を真っ直ぐに往復
動作させることになるので、未熟な作業者は手首を不用
意に働かせて工具の研磨作用面と金属板表面との平行状
態を乱してしまい易い。その結果、研磨作用面の往復移
動方向前後端に余計な力が加わって、研磨作用面を研磨
対象表面に自然に倣わせることができず、研磨対象表面
を平滑に仕上げることが困難となる傾向がある。このよ
うな傾向は、研磨対象表面が工具の往復移動方向に平坦
な面からなる場合だけでなく、往復移動方向に湾曲する
面からなる場合にも顕著に現れる。Further, when the excess filler in the repaired portion is polished and removed by using a polishing hand tool, in the finishing step, the tool is used in order to completely eliminate the step between the filler surface and the surrounding metal plate surface. After first abutting the polishing surface of the metal plate parallel to the metal plate surface, linearly reciprocally slide between the metal plate surface and the filler surface while applying a pressing force so as to maintain the parallel state, An operation of continuously polishing the filler is required. At this time, with conventional polishing hand tools, since the operator reciprocates the hand straight while holding the grip part firmly with one hand, an inexperienced operator can use his wrist carelessly The parallel state between the polishing surface and the metal plate surface is likely to be disturbed. As a result, extra force is applied to the front and rear ends of the polishing action surface in the reciprocating direction, so that the polishing action surface cannot be made to follow the polishing target surface naturally, and it becomes difficult to finish the polishing target surface smoothly. Tend. Such a tendency is remarkable not only when the surface to be polished is a flat surface in the reciprocating direction of the tool, but also when it is a surface which is curved in the reciprocating direction.

【０００６】このように従来の研磨手工具は、金属板の
補修部に充填された充填材の余剰部分を研磨除去するた
めに使用する場合、過剰な押し付け力を加えないこと、
手首を不用意に働かせないこと等、作業者の高度に熟練
した技術を必要としていた。その結果、作業者の肉体的
及び精神的負担の増加、作業工賃の高騰等の問題を生じ
ていた。As described above, when the conventional polishing hand tool is used for polishing and removing the surplus portion of the filler filled in the repaired portion of the metal plate, do not apply an excessive pressing force,
It required highly skilled skills of workers, such as careless work of the wrist. As a result, there have been problems such as an increase in the physical and mental burden on the worker and a rise in the labor cost.

【０００７】したがって本発明の目的は、作業者の熟練
を要することなく、金属板の補修部に充填された充填材
の余剰部分を正確に研磨除去することを可能にする研磨
手工具を提供することにある。Therefore, an object of the present invention is to provide a polishing hand tool which enables accurate polishing and removal of an excessive portion of a filler filled in a repair portion of a metal plate without requiring the skill of an operator. Especially.

【０００８】[0008]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、研磨作用面を有した本体と、本体に設け
られる握持部とを具備し、作業者が握持部を握持して研
磨作用面を研磨対象表面に押し付けつつ摺動させること
により研磨対象表面を研磨する研磨手工具において、握
持部が、研磨作用面に平行に延びる軸に関して回動可能
に本体に設けられた握持要素を具備することを特徴とす
る研磨手工具を提供する。To achieve the above object, the present invention comprises a main body having a polishing surface and a grip portion provided on the main body, and an operator grips the grip portion. In a polishing hand tool for polishing a surface to be polished by holding it and sliding it while pressing the surface to be polished against the surface to be polished, a gripping portion is provided on a main body so as to be rotatable about an axis extending parallel to the surface to be polished. Provided is an abrasive hand tool, characterized in that it comprises a gripping element that is set up.

【０００９】本発明はさらに、上記の研磨手工具におい
て、握持部が、本体に固定的に設けられる第２の握持要
素をさらに具備する研磨手工具を提供する。The present invention further provides the polishing hand tool described above, wherein the gripping portion further comprises a second gripping element fixedly provided on the main body.

【００１０】本発明はさらに、上記の研磨手工具におい
て、研磨作用面が平坦面である研磨手工具を提供する。The present invention further provides the above-mentioned polishing hand tool, wherein the polishing working surface is a flat surface.

【００１１】本発明はさらに、上記の研磨手工具におい
て、研磨作用面が、握持要素の軸の延長方向に沿って曲
折する折曲面からなる研磨手工具を提供する。The present invention further provides the above-mentioned polishing hand tool, wherein the polishing working surface is a bent curved surface that bends along the extension direction of the axis of the gripping element.

【００１２】[0012]

【発明の実施の形態】以下、添付図面を参照して、本発
明をその好適な実施の形態に基づき詳細に説明する。図
１〜図３を参照すると、本発明の一実施形態による研磨
手工具１０は、研磨作用面１２を有した本体１４と、本
体１４に設けられる握持部１６とを備える。本体１４
は、作業者が片手で自在に操作できる程度の寸法及び重
量を有した略直方体の基体であり、その底面１４ａに、
略平坦な研磨作用面１２を有する略矩形平面形状の支持
板１８が固定的に連結される。図示実施例では研磨作用
面１２は、例えば周知の研磨布紙からなる研磨部材２０
の研磨面によって構成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the accompanying drawings. Referring to FIGS. 1 to 3, a polishing hand tool 10 according to an exemplary embodiment of the present invention includes a body 14 having a polishing surface 12 and a grip portion 16 provided on the body 14. Body 14
Is a substantially rectangular parallelepiped base body having a size and weight that allow an operator to freely operate it with one hand.
A support plate 18 having a substantially rectangular planar shape having a substantially flat polishing action surface 12 is fixedly connected. In the illustrated embodiment, the polishing surface 12 is a polishing member 20 made of, for example, a well-known polishing cloth paper.
It is composed of a polished surface.

【００１３】本体１４及び支持板１８は、作業者の手の
力を正確に研磨作用面１２に伝えるために、好ましくは
木、プラスチック、アルミニウム等の金属、等の堅固か
つ軽量な材料から形成される。特に支持板１８は、研磨
作業時の摩擦力や押し付け力に抗して研磨部材２０を平
坦に保持するに充分な剛性を有することが好ましい。本
体１４と支持板１８とは、同一材料から一体的に成形し
てもよいし、同一又は異なる材料から別体に成形しても
よい。一体成形の場合、支持板１８を省略して、本体１
４の底面１４ａに直接に研磨作用面１２を形成すること
もできる。また別体成形の場合、支持体１８は本体１４
の底面１４ａにボルト、接着剤等の固定手段を介して固
定できる。なお支持体１８は、市販される研磨布紙の定
型形状に合致した平面形状を有することが好ましい。The body 14 and the support plate 18 are preferably formed of a solid and lightweight material such as wood, plastic, metal such as aluminum, etc. in order to accurately transmit the force of the hand of the operator to the polishing surface 12. It In particular, the support plate 18 preferably has sufficient rigidity to hold the polishing member 20 flat against the frictional force and the pressing force during the polishing operation. The main body 14 and the support plate 18 may be integrally molded from the same material, or may be separately molded from the same or different materials. In the case of integral molding, the support plate 18 is omitted and the main body 1
It is also possible to form the polishing surface 12 directly on the bottom surface 14a of the No. 4 substrate. In the case of separate molding, the support 18 is the main body 14
It can be fixed to the bottom surface 14a of the above through fixing means such as bolts and adhesives. The support 18 preferably has a planar shape that matches the standard shape of the commercially available abrasive cloth paper.

【００１４】研磨部材２０は、本体１４の反対側に位置
する支持板１８の主表面１８ａに接着剤、両面粘着テー
プ、面ファスナー等の固着手段を介して、好ましくは脱
着可能に固着される。研磨部材２０を支持板１８に脱着
可能とすることにより、荒研ぎ、仕上げ研ぎ等の研磨作
業種類に応じて所望粗さの研磨面を有する研磨部材２０
を適宜選択して支持板１８に取付けたり、研磨面が減耗
した研磨部材２０を新しいものに交換したりすることが
可能となる。或いはまた、研磨部材２０を省略し、砥粒
を支持板１８の底面に直接に付着させることにより、研
磨作用面１２を形成することもできる。The polishing member 20 is preferably removably fixed to the main surface 18a of the support plate 18 located on the opposite side of the main body 14 through a fixing means such as an adhesive, a double-sided adhesive tape, a surface fastener. By making the polishing member 20 attachable to and detachable from the support plate 18, the polishing member 20 having a polishing surface having a desired roughness according to the type of polishing work such as rough polishing and finish polishing.
Can be appropriately selected and attached to the support plate 18, or the polishing member 20 whose polishing surface has been worn can be replaced with a new one. Alternatively, the polishing member 20 may be omitted, and the polishing particles 12 may be directly attached to the bottom surface of the support plate 18 to form the polishing surface 12.

【００１５】握持部１６は、作業者が研磨手工具１０を
片手で容易かつ正確に操作できるように設けられるもの
であり、研磨作用面１２に平行に延びる軸線２２に関し
て回動可能に本体１４に装着された第１握持要素２４
と、本体１４の長手方向に延びる一対の側面１４ｂに固
定的に形成された第２握持要素２６とを備える。The gripping portion 16 is provided so that an operator can easily and accurately operate the polishing hand tool 10 with one hand, and the gripping portion 16 is rotatable about an axis 22 extending parallel to the polishing surface 12. First gripping element 24 mounted on the
And a second gripping element 26 fixedly formed on the pair of side surfaces 14b extending in the longitudinal direction of the main body 14.

【００１６】第１握持要素２４は、軸線２２を有する円
筒状の軸部２８と、軸部２８の軸方向両端に同心に固定
される一対の円板状の端板３０とを備える。軸部２８
は、本体１４の両側面１４ｂ間にそれら側面１４ｂに略
直交して貫通形成された孔３２に、がたつかない程度の
遊びを有して貫入される。一対の端板３０は、接着剤や
ボルト等の固定手段により軸部２８に固定され、本体１
４の両側面１４ｂに凹設された凹部３４に、がたつかな
い程度の遊びを有してそれぞれ収容される。このとき、
各端板３０の軸方向端面３０ａは、好ましくは本体１４
の各側面１４ｂよりも外側に突出して配置される。それ
により、後述する研磨作業において、作業者が２本の指
で第１握持要素２４を掴持することが容易になる。The first gripping element 24 comprises a cylindrical shaft portion 28 having an axis 22 and a pair of disc-shaped end plates 30 which are concentrically fixed to both axial ends of the shaft portion 28. Shaft 28
Is inserted into the hole 32 formed between the both side surfaces 14b of the main body 14 so as to be substantially orthogonal to the side surfaces 14b, with a play that does not rattle. The pair of end plates 30 are fixed to the shaft portion 28 by a fixing means such as an adhesive or a bolt, and the main body 1
4 are housed in the recesses 34 formed on both side surfaces 14b of the No. 4 with play that does not rattle. At this time,
The axial end surface 30a of each end plate 30 is preferably the body 14
Are arranged so as to project outward from the respective side surfaces 14b. This makes it easy for the operator to grip the first gripping element 24 with two fingers in the polishing operation described below.

【００１７】第１握持要素２４は、作業者の手の力を正
確に本体１４に伝えるために、好ましくは木、プラスチ
ック、アルミニウム等の金属、等の堅固かつ軽量な材料
から形成される。特に、軸部２８及び端板３０のいずれ
も本体１４に対して摺接回動する要素であるので、耐摩
耗性に優れ、かつ摩擦係数の小さい樹脂材料から形成さ
れることが好ましい。或いは、木又は金属からなる軸部
２８及び端板３０の、本体１４と摺接する表面部分に樹
脂被覆を施して、耐摩耗性及び潤滑性を向上させた構成
としてもよい。The first gripping element 24 is preferably formed from a solid and lightweight material, such as wood, plastic, metal such as aluminum, etc., in order to accurately transmit the force of the operator's hand to the body 14. In particular, since both the shaft portion 28 and the end plate 30 are elements that rotate in sliding contact with the main body 14, it is preferable that the shaft portion 28 and the end plate 30 be formed of a resin material having excellent wear resistance and a small friction coefficient. Alternatively, the surface portions of the shaft portion 28 and the end plate 30 made of wood or metal that are in sliding contact with the main body 14 may be coated with a resin to improve wear resistance and lubricity.

【００１８】第１握持要素２４は、本体１４の長手方向
の略中央、すなわち研磨手工具１０の重心位置に配置さ
れることが好ましい。それにより、後述する研磨作業に
おいて、作業者が２本の指で第１握持要素２４を掴持し
たときに研磨手工具１０を容易に平衡させることがで
き、研磨作用面１２を研磨対象表面に容易に平行配置で
きるとともに、研磨対象表面への押し付け力を研磨作用
面１２の全体で均一に加えることができる。また、第１
握持要素２４を本体１４の長手方向に複数個並列に配置
し、作業者が作業し易い所望の第１握持要素２４を選択
的に掴持できるようにしてもよい。The first gripping element 24 is preferably arranged substantially at the center in the longitudinal direction of the main body 14, that is, at the center of gravity of the polishing hand tool 10. Thereby, in the polishing operation described later, when the operator holds the first gripping element 24 with two fingers, the polishing hand tool 10 can be easily balanced, and the polishing action surface 12 is made to be the surface to be polished. In addition, the pressing force to the surface to be polished can be uniformly applied to the entire surface 12 to be polished. Also, the first
A plurality of gripping elements 24 may be arranged in parallel in the longitudinal direction of the main body 14 so that an operator can selectively grip a desired first gripping element 24 that is easy to work.

【００１９】なお、第１握持要素２４の各端板３０の軸
方向端面３０ａには、作業者の指先を掛合させる溝３６
を形成することが好ましい。溝３６は、研磨作業におい
て研磨作用面１２を研磨対象表面に沿って摺動させる力
及び研磨対象表面に押し付ける力を、作業者の指から第
１握持要素２４に確実に伝えることを可能にする。The axial end surface 30a of each end plate 30 of the first gripping element 24 is provided with a groove 36 for engaging a fingertip of an operator.
Is preferably formed. The groove 36 makes it possible to reliably transmit the force for sliding the polishing surface 12 along the surface to be polished and the force to press the surface to be polished in the polishing operation from the finger of the operator to the first gripping element 24. To do.

【００２０】第２握持要素２６は、本体１４の両側面１
４ｂに凹設された長手方向に延びる一対の溝部３８から
形成される。両溝部３８は、作業者が片手でしっかりと
本体１４を握持したときに、その指先を掛合させること
により、研磨作用面１２を研磨対象表面に沿って摺動さ
せる力及び研磨対象表面に押し付ける力を、作業者の手
から本体１４に確実に伝えることを可能にする。ここ
で、「しっかりと握持した」状態とは、片手の掌を本体
１４の頂面１４ｃに接触させた状態でその五指全てを用
いて本体１４を握持した状態を示すものとする。The second gripping element 26 is located on both sides 1 of the body 14.
It is formed from a pair of groove portions 38 which are provided in a recess in 4b and extend in the longitudinal direction. When the operator firmly holds the main body 14 with one hand, the both groove portions 38 are pressed against the surface to be polished and the force for sliding the polishing action surface 12 along the surface to be polished by engaging the fingertips thereof. The force can be surely transmitted to the main body 14 from the hand of the operator. Here, the "firmly gripped" state refers to a state where the palm of one hand is in contact with the top surface 14c of the main body 14 and the main body 14 is gripped by using all five fingers.

【００２１】研磨手工具１０を用いて、金属板の補修部
を研磨する作業を、図４を参照して以下に説明する。図
４（ａ）に示すように、平坦な金属板１００の補修部１
０２に過剰に肉盛りされた充填材１０４は、その余剰部
分が周囲の金属板表面から突出しており、この突出した
余剰部分を周囲の金属板表面と略同一面を呈するまで研
磨除去することが補修作業において要求される。まず、
余剰部分を荒研ぎする際は、所望粗さの研磨部材２０を
支持部１８に添着した研磨手工具１０を、作業者が片手
の五指を第２握持要素２６の各溝部３８に掛合させてし
っかりと握持し、適当な押し付け力により研磨作用面１
２を充填材１０４の表面に押し付けながら、手を往復動
作させて余剰部分を研磨する。The operation of polishing the repaired portion of the metal plate using the polishing hand tool 10 will be described below with reference to FIG. As shown in FIG. 4A, the repair part 1 of the flat metal plate 100.
The filler 104 excessively padded in 02 has a surplus portion protruding from the surface of the surrounding metal plate, and the protruding surplus portion can be removed by polishing until it becomes substantially flush with the surface of the surrounding metal plate. Required for repair work. First,
When the surplus portion is roughly ground, the operator puts the polishing hand tool 10 in which the polishing member 20 having the desired roughness is attached to the support portion 18 on the groove portions 38 of the second gripping element 26 with the five fingers of one hand. Firmly grasp and polishing surface 1 with appropriate pressing force
While pressing 2 against the surface of the filler 104, the hand is reciprocated to polish the surplus portion.

【００２２】次いで、仕上げ研ぎを行なう際は、必要に
応じて研磨部材２０を交換した研磨手工具１０を、作業
者が片手の２本の指（例えば親指と中指）を第１握持要
素２４の各端板３０の溝３６に掛合させて、好ましくは
掌を本体１４の頂面１４ｃから離した状態で、２本の指
だけで軽く握持する（図４（ａ）参照）。その状態で研
磨手工具１０を補修部１０２の周囲の金属板１００に載
せ、２本の指から適当な押し付け力を加えながら、研磨
作用面１２を金属板表面と充填材表面との双方に亙っ
て、第１握持要素２４の軸線２２に略直交する方向へ直
線的に往復摺動（図示矢印Ａ）させる。このとき、第１
握持要素２４が本体１４に対して回動できるので、本体
１４は、研磨作用面１２が金属板表面と充填材表面との
間を移行するときにそれら表面が成す凹凸に倣って自動
的に軸線２２に関して揺動する（図示矢印Ｂ）。Next, when performing the final sharpening, the operator holds the polishing hand tool 10 with the polishing member 20 replaced if necessary, and the operator holds two fingers (for example, the thumb and the middle finger) of one hand in the first gripping element 24. It is engaged with the groove 36 of each end plate 30 and is lightly gripped with only two fingers in a state where the palm is preferably separated from the top surface 14c of the main body 14 (see FIG. 4A). In this state, the polishing hand tool 10 is placed on the metal plate 100 around the repairing part 102, and the polishing action surface 12 is applied to both the metal plate surface and the filler surface while applying an appropriate pressing force from two fingers. Then, the first gripping element 24 is linearly reciprocally slid (arrow A in the figure) in a direction substantially orthogonal to the axis 22. At this time, the first
Since the gripping element 24 is rotatable with respect to the body 14, the body 14 automatically follows the irregularities formed by the polishing surface 12 as it transitions between the metal plate surface and the filler surface. It swings with respect to the axis 22 (arrow B shown).

【００２３】このように、仕上げ研ぎを行なう際に、作
業者に２本の指だけで研磨手工具１０を握持するよう強
要することにより、手から研磨対象表面に加える押し付
け力を適度に抑制することが可能となる。その結果、仕
上げ研ぎによる削り過ぎの危惧が排除される。また、金
属板表面と充填材表面との間を連続的に往復摺動させて
研磨する際に、作業者が手首を不用意に働かせたとして
も、手首の動作は第１握持要素２４の回動により吸収さ
れて本体１４に伝わらない。したがって、研磨手工具１
０の研磨作用面１２を、金属板表面と充填材表面とが成
す凹凸に自然に倣わせることが可能となる。このような
自然な倣いのもとで連続的に研磨を行なうと、金属板表
面と充填材表面との硬度の差から充填材が徐々に研磨さ
れ、その結果、削り過ぎを防止しつつ、金属板表面と充
填材表面との段差を完全に排除して、充填材表面を金属
板表面に略平行な状態まで平滑に仕上げることが可能と
なる。As described above, when the finishing sharpening is performed, the operator is forced to hold the polishing hand tool 10 with only two fingers, so that the pressing force applied from the hand to the surface to be polished is appropriately suppressed. It becomes possible to do. As a result, the fear of over-grinding due to finishing sharpening is eliminated. Further, even when an operator carelessly exercises his / her wrist during polishing by continuously sliding back and forth between the surface of the metal plate and the surface of the filler, the movement of the wrist does not affect the movement of the first gripping element 24. It is absorbed by the rotation and is not transmitted to the main body 14. Therefore, the polishing hand tool 1
It becomes possible to make the polishing action surface 12 of 0 naturally follow the unevenness formed by the surface of the metal plate and the surface of the filler. When polishing is continuously performed under such a natural contour, the filler is gradually polished due to the difference in hardness between the metal plate surface and the filler surface, and as a result, the metal is prevented from being over-cut. By completely eliminating the step between the plate surface and the filler surface, it is possible to finish the filler surface smoothly until it is substantially parallel to the metal plate surface.

【００２４】さらに、図４（ｂ）に示すように、金属板
１００の曲面部分に位置する補修部１０２に肉盛りされ
た充填材１０４を研磨する場合は、研磨手工具１０をそ
の軸線２２が金属板１００の湾曲方向に略直交する配置
に握持し、上記と同様にして荒研ぎ及び仕上げ研ぎを行
なう。仕上げ研ぎ段階では、第１握持要素２４が本体１
４に対して回動できるので、作業者が手首を意図的に働
かせて研磨手工具１０を曲面形状に積極的に追従させよ
うとしなくても、研磨作用面１２を金属板表面と充填材
表面とが成す凹凸及び曲面形状に自然に倣わせながら、
研磨手工具１０を往復摺動させることができる。その結
果、研磨手工具１０に過剰な押し付け力を加えることが
防止され、研磨作用面１２の自然な倣いのもとで、金属
板表面と充填材表面との段差を完全に排除するととも
に、補修部周辺の金属板１００の曲面部分が有する本来
の湾曲形状に略合致するまで、充填材表面を仕上げるこ
とが可能となる。Further, as shown in FIG. 4 (b), when polishing the filler 104 built up in the repair portion 102 located on the curved surface portion of the metal plate 100, the axis 22 of the polishing hand tool 10 is The metal plate 100 is gripped in a position substantially orthogonal to the bending direction, and rough polishing and finish polishing are performed in the same manner as above. In the finishing sharpening stage, the first gripping element 24 is
Since it can be rotated with respect to 4, even if the operator does not intentionally move his / her wrist to positively follow the polishing hand tool 10 to the curved surface shape, the polishing action surface 12 is set to the metal plate surface and the filler material surface. While naturally imitating the unevenness and curved surface shape formed by
The polishing hand tool 10 can be slid back and forth. As a result, it is possible to prevent excessive pressing force from being applied to the polishing hand tool 10, completely eliminate the step between the surface of the metal plate and the surface of the filling material under the natural copying of the polishing action surface 12, and perform repair. It is possible to finish the surface of the filling material until it substantially matches the original curved shape of the curved surface portion of the metal plate 100 around the portion.

【００２５】図５〜図７は、本発明の他の実施形態によ
る研磨手工具４０を示す。研磨手工具４０は、研磨作用
面４２を有した本体４４と、本体４４に設けられる握持
部４６とを備える。本体４４の底面４４ａには、略平坦
な研磨作用面４２を有する略矩形平面形状の支持板４８
が固定的に連結される。図示実施例では研磨作用面４２
は、例えば周知の研磨布紙からなる研磨部材５０の研磨
面によって構成される。本体４４、支持板４８及び研磨
部材５０は、図１の研磨手工具１０の本体１４、支持板
１８及び研磨部材２０と略同様の構成を有するが、本実
施例では本体４４は、握持部４６に包囲されて握持部４
６と支持板４８との間を連結するものであり、作業者が
本体４４に直接に手で触れることはない。5-7 illustrate a polishing hand tool 40 according to another embodiment of the present invention. The polishing hand tool 40 includes a main body 44 having a polishing surface 42 and a grip portion 46 provided on the main body 44. On the bottom surface 44a of the main body 44, a support plate 48 having a substantially rectangular planar shape having a substantially flat polishing action surface 42 is provided.
Are fixedly connected. In the illustrated embodiment, the polishing surface 42
Is constituted by the polishing surface of the polishing member 50 made of, for example, a well-known polishing cloth. The main body 44, the support plate 48, and the polishing member 50 have substantially the same configurations as the main body 14, the support plate 18, and the polishing member 20 of the polishing hand tool 10 of FIG. 1, but in the present embodiment, the main body 44 has a grip portion. Surrounded by 46 and gripping section 4
6 and the support plate 48 are connected to each other, and an operator does not directly touch the main body 44 with a hand.

【００２６】握持部４６は、作業者が研磨手工具４０を
片手で容易かつ正確に操作できるように設けられるもの
であり、研磨作用面４２に平行に延びる軸線５２に関し
て回動可能に本体４４に装着された握持要素５４を備え
る。握持要素５４は、図１の研磨手工具１０の本体１４
に類似した略直方体形状を有する握持部材５６と、軸線
５２を有して握持部材５６に設けられた円筒状の軸部５
８とを備える。握持部材５６は、湾出状の曲面からなる
底面５６ａを有し、底面５６ａに、本体４４をがたつか
ない程度の遊びを有して収容する凹部６０が設けられ
る。握持部材５６の長手方向に延びる両側面５６ｂに
は、それぞれ長手方向に延びる溝部６２が凹設される。
両溝部６２は、作業者が片手で握持部材５６を握持した
ときに、その指先を掛合させることにより、研磨作用面
１２を研磨対象表面に沿って摺動させる力及び研磨対象
表面に押し付ける力を、作業者の手から握持部材５６に
確実に伝えることを可能にする。The gripping portion 46 is provided so that an operator can easily and accurately operate the polishing hand tool 40 with one hand, and the gripping portion 46 is rotatable about an axis 52 extending parallel to the polishing working surface 42. A gripping element 54 mounted on the. The gripping element 54 is the body 14 of the polishing hand tool 10 of FIG.
A gripping member 56 having a substantially rectangular parallelepiped shape and a cylindrical shaft portion 5 having an axis 52 and provided on the gripping member 56.
8 is provided. The grip member 56 has a bottom surface 56a formed of a curved surface, and the bottom surface 56a is provided with a concave portion 60 for accommodating the main body 44 with a play that does not rattle. On both side surfaces 56b of the grip member 56 extending in the longitudinal direction, groove portions 62 extending in the longitudinal direction are provided as recesses.
When the operator grips the grip member 56 with one hand, the both groove portions 62 are pressed against the surface to be polished and the force for sliding the polishing action surface 12 along the surface to be polished by engaging the fingertips thereof. It is possible to reliably transfer the force from the hand of the operator to the grip member 56.

【００２７】軸部５８は、握持部材５６の両側面５６ｂ
に略直交して、凹部６０を画成する握持部材５６の対向
側壁６４の間に架設され、本体４４の長手方向へ延びる
両側面４４ｂ間にそれら側面４４ｂに略直交して貫通形
成された孔６６に、がたつかない程度の遊びを有して貫
入される。軸部５８は、その両端で接着剤等の固定手段
により握持部材５６の対向側壁６４に固定される。なお
握持要素５４は、図１の第１握持要素２４と同様の材料
から形成できる。また、握持要素５４の軸部５８は、本
体４４の長手方向の略中央、すなわち研磨手工具４０の
重心位置に配置されることが好ましい。The shaft portion 58 is formed on both side surfaces 56b of the grip member 56.
Substantially perpendicular to the side walls 44b of the gripping member 56 defining the recess 60, the side walls 64b extending in the longitudinal direction of the main body 44 are formed so as to extend substantially orthogonal to the side walls 44b. The hole 66 is penetrated with a play that does not rattle. The shaft portion 58 is fixed to the opposite side wall 64 of the grip member 56 by fixing means such as an adhesive at both ends thereof. It should be noted that the gripping element 54 can be made of the same material as the first gripping element 24 of FIG. Further, it is preferable that the shaft portion 58 of the gripping element 54 is arranged substantially at the center in the longitudinal direction of the main body 44, that is, at the center of gravity of the polishing hand tool 40.

【００２８】研磨手工具４０は、金属板の補修部を研磨
する際に主に仕上げ研ぎ用に使用することが望ましい。
仕上げ研ぎを行なう際は、適当な粗さの研磨部材５０を
支持板４８に添着した研磨手工具４０を、作業者が片手
の所望の指を握持部材５６の溝部６２に掛合させて軽く
握持する。その状態で研磨手工具４０を補修部の周囲の
金属板に載せ、適当な押し付け力を加えながら、研磨作
用面４２を金属板表面と充填材表面との双方に亙って、
握持要素５４の軸線５２に略直交する方向へ直線的に往
復摺動させる。このとき、握持要素５４が本体４４に対
して回動できるので、本体４４は、研磨作用面４２が金
属板表面と充填材表面との間を移行するときにそれら表
面が成す凹凸に倣って自動的に軸線５２に関して揺動す
る。The polishing hand tool 40 is preferably used mainly for finish polishing when polishing a repaired portion of a metal plate.
When performing the final sharpening, the operator manually engages the desired finger of one hand with the groove portion 62 of the grip member 56 and gently holds the polishing hand tool 40 in which the polishing member 50 having an appropriate roughness is attached to the support plate 48. To have. In that state, the polishing hand tool 40 is placed on the metal plate around the repaired portion, and the polishing action surface 42 is spread over both the metal plate surface and the filler surface while applying an appropriate pressing force.
The gripping element 54 is linearly slid back and forth in a direction substantially orthogonal to the axis 52. At this time, since the gripping element 54 can be rotated with respect to the main body 44, the main body 44 follows the unevenness formed by the polishing working surface 42 when the surfaces move between the metal plate surface and the filler material surface. It automatically swings about axis 52.

【００２９】このように、研磨手工具４０を使用する際
には、作業者が手から研磨対象表面に加える押し付け力
を適度に抑制すれば、仕上げ研ぎによる削り過ぎの危惧
が排除される。また、金属板表面と充填材表面との間を
連続的に往復摺動させて研磨する際に、作業者が手首を
不用意に働かせたとしても、手首の動作は握持要素５４
の回動により吸収されて本体４４に伝わらない。したが
って、研磨手工具４０の研磨作用面４２を金属板表面と
充填材表面とが成す凹凸に自然に倣わせることができ、
その結果、図１の研磨手工具１０と同様に、削り過ぎを
防止しつつ、金属板表面と充填材表面との段差を完全に
排除して、充填材表面を金属板表面に略平行な状態まで
平滑に仕上げることが可能となる。As described above, when the polishing hand tool 40 is used, by appropriately suppressing the pressing force applied from the hand to the surface to be polished by the operator, the fear of over-grinding due to the finishing sharpening can be eliminated. Further, even when an operator inadvertently exercises his / her wrist when polishing by continuously reciprocatingly sliding between the surface of the metal plate and the surface of the filler, the movement of the wrist does not affect the gripping element 54.
Is not absorbed by the rotation of and is not transmitted to the main body 44. Therefore, the polishing action surface 42 of the polishing hand tool 40 can be made to follow the unevenness formed by the metal plate surface and the filler surface naturally.
As a result, like the polishing hand tool 10 of FIG. 1, while preventing overcutting, the step between the metal plate surface and the filler surface is completely eliminated, and the filler surface is substantially parallel to the metal plate surface. It is possible to finish up to smooth.

【００３０】図８は、図１の研磨手工具１０の変形例を
示す。図８（ａ）に示すように、この研磨手工具１０′
では、本体１４′の底面１４ａ′に、軸線２２′の延長
方向へ屈曲して延びる支持板１８′が固定的に連結さ
れ、この支持板１８′に、研磨作用面１２′を有する研
磨部材２０′が添着される。研磨手工具１０′は、支持
板１８′の屈曲形状に合致した屈曲形状を有する金属板
の屈曲部分に補修部が位置する場合に、その補修部の研
磨作業に好適に使用できる。FIG. 8 shows a modification of the polishing hand tool 10 of FIG. As shown in FIG. 8A, this polishing hand tool 10 '
Then, a support plate 18 'bent and extending in the extension direction of the axis 22' is fixedly connected to the bottom surface 14a 'of the main body 14', and the polishing member 20 having the polishing surface 12 'is attached to the support plate 18'. 'Is attached. The polishing hand tool 10 'can be suitably used for polishing work of a repaired part when the repaired part is located at a bent part of a metal plate having a bent shape that matches the bent shape of the support plate 18'.

【００３１】図８（ｂ）に示すように、研磨手工具１
０′の支持板１８′を、支持板１８′の屈曲形状に合致
した屈曲形状を有する金属板１０６の屈曲部分に沿わせ
て載せ、適当な押し付け力を加えながら研磨作用面１
２′を、第１握持要素２４′の軸線２２′に略直交する
方向、すなわち金属板１０６の屈曲部分の稜線方向へ直
線的に往復摺動（図示矢印Ｃ）させる。それにより、補
修部１０８に肉盛りされた充填材１１０を研磨除去する
ことができる。もちろん、第１握持要素２４′を軽く握
持した状態で研磨作用面１２′を往復摺動させれば、前
述のように充填材表面を仕上げ研ぎすることができる。As shown in FIG. 8B, the polishing hand tool 1
The 0'support plate 18 'is placed along the bent portion of the metal plate 106 having a bent shape that matches the bent shape of the support plate 18', and the polishing action surface 1 is applied while applying an appropriate pressing force.
2'is linearly reciprocally slid (arrow C in the figure) in a direction substantially orthogonal to the axis 22 'of the first gripping element 24', that is, in the ridgeline direction of the bent portion of the metal plate 106. As a result, the filler 110 built up in the repair section 108 can be removed by polishing. Of course, if the polishing surface 12 'is reciprocally slid while the first gripping element 24' is lightly gripped, the surface of the filler can be finished and ground as described above.

【００３２】[0032]

【発明の効果】以上の説明から明らかなように、本発明
に係る研磨手工具は、研磨対象表面を研磨する際に、研
磨作用面に対して回動する握持要素を握持することによ
り、研磨作用面の自然な倣いのもとで、研磨対象表面の
削り過ぎを防止しつつ研磨対象表面を仕上げ研ぎするこ
とができる。したがって本発明によれば、作業者の熟練
を要することなく、金属板の補修部に充填された充填材
の余剰部分を正確に研磨除去することが可能になり、そ
の結果、作業者の肉体的及び精神的負担の軽減、作業工
賃の削減等の効果が得られる。As is apparent from the above description, the polishing hand tool according to the present invention, when polishing the surface to be polished, holds the gripping element that rotates with respect to the polishing surface. The surface to be polished can be finished and ground while preventing the surface of the object to be polished from being excessively cut under the natural copying of the surface to be polished. Therefore, according to the present invention, it is possible to accurately polish and remove the surplus portion of the filler filled in the repaired portion of the metal plate without requiring the skill of the operator, and as a result, the operator's physical Also, effects such as reduction of mental burden and reduction of labor costs can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施形態による研磨手工具の斜視図
である。FIG. 1 is a perspective view of a polishing hand tool according to an embodiment of the present invention.

【図２】図１の研磨手工具の側面図である。FIG. 2 is a side view of the polishing hand tool of FIG. 1;

【図３】図２の線 III−III に沿った断面図である。3 is a cross-sectional view taken along the line III-III in FIG.

【図４】図１の研磨手工具の作用を説明する図で、
（ａ）平坦面の研磨作業、及び（ｂ）湾曲面の研磨作
業、を示す。FIG. 4 is a view for explaining the operation of the polishing hand tool of FIG.
(A) Polishing work of a flat surface and (b) polishing work of a curved surface are shown.

【図５】本発明の他の実施形態による研磨手工具の斜視
図である。FIG. 5 is a perspective view of a polishing hand tool according to another embodiment of the present invention.

【図６】図５の研磨手工具の側面図である。6 is a side view of the polishing hand tool of FIG.

【図７】図６の線 VII−VII に沿った断面図である。7 is a cross-sectional view taken along the line VII-VII of FIG.

【図８】図１の研磨手工具の変形例を示す図で、（ａ）
正面図、及び（ｂ）屈曲面の研磨作業を示す図、であ
る。8 is a view showing a modified example of the polishing hand tool of FIG. 1, (a)
It is a front view, and (b) is a figure which shows the polishing operation of a curved surface.

【符号の説明】[Explanation of symbols]

１０、４０…研磨手工具 １２、４２…研磨作用面 １４、４４…本体 １６、４６…握持部 １８、４８…支持板 ２０、５０…研磨部材 ２２、５２…軸線 ２４…第１握持要素 ２６…第２握持要素 ５４…握持要素 10, 40 ... Polishing hand tool 12, 42 ... Polishing action surface 14, 44 ... Main body 16, 46 ... Gripping portion 18, 48 ... Support plate 20, 50 ... Polishing member 22, 52 ... Axis line 24 ... First gripping element 26 ... 2nd gripping element 54 ... gripping element

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 研磨作用面を有した本体と、該本体に設
けられる握持部とを具備し、作業者が該握持部を握持し
て該研磨作用面を研磨対象表面に押し付けつつ摺動させ
ることにより研磨対象表面を研磨する研磨手工具におい
て、 前記握持部が、前記研磨作用面に平行に延びる軸に関し
て回動可能に前記本体に設けられた握持要素を具備する
ことを特徴とする研磨手工具。1. A main body having a polishing surface, and a grip portion provided on the main body, wherein an operator grips the grip portion and presses the polishing surface against the surface to be polished. In a polishing hand tool for polishing a surface to be polished by sliding, the gripping portion includes a gripping element rotatably provided on the main body about an axis extending parallel to the polishing surface. Characteristic polishing hand tool. 【請求項２】 前記握持部が、前記本体に固定的に設け
られる第２の握持要素をさらに具備する請求項１に記載
の研磨手工具。2. The polishing hand tool according to claim 1, wherein the gripping part further comprises a second gripping element fixedly provided on the main body. 【請求項３】 前記研磨作用面が平坦面である請求項１
又は２に記載の研磨手工具。3. The polishing surface is a flat surface.
Alternatively, the polishing hand tool according to item 2. 【請求項４】 前記研磨作用面が、前記握持要素の前記
軸の延長方向に沿って曲折する折曲面からなる請求項１
〜３のいずれか１項に記載の研磨手工具。4. The polishing surface is a bent surface that bends along the extension of the shaft of the gripping element.
The polishing hand tool according to any one of 1 to 3.