JP2005118917A - Grinder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grinder which facilitates smooth grinding work by tilting a workpiece in the grinding at a recessed face part and a corner part and flexibly copes with the grinding work without requiring skills. <P>SOLUTION: A handle T1, a lever L1, and a knob H are provided to the upper body part B1 of the grinder S1. A first roller is supported to the position near the outside of the rectangular grinding tool and rolls in one direction on the face to be ground in the lower body part B2. A second roller 4 is supported to the position parallel to the axial center of a pair of the first rollers and apart at a prescribed distance in the lower body part B2. The second roller 4 is supported to the lower body part B2 in a state of being rotatable at the end part of a coupling rod 7 and of being spring-energized downwardly. The height position of the first roller to the lower body part B2 is regulated by a height adjusting screw 5. The height position of the second roller 4, namely the inclination angle of the lower body part B2, is regulated by an inclination adjusting screw 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a polishing apparatus that polishes an object to be polished into a required shape by rotating or reciprocating the polishing tool. In particular, the object can be polished suitably and safely at an edge portion of the polishing tool. The present invention relates to a polishing apparatus.

Conventionally, when repairing scratches, dents, etc. on the vehicle body, first apply a feather etch using a polishing device called a double sander and then apply the putty. Polishing into a required shape using a polishing apparatus such as an orbital sander. After applying the surfacer, the surfacer is polished, and the work proceeds in the order of pre-coating, top-coating, drying, and polishing. In short, the polishing operation can be classified in the order of feather etch operation, putty polishing operation, surfacer polishing operation, and pre-coating pretreatment operation.
For example, a double sander rotates a pad that holds a paper-like abrasive, and it is not a polishing machine suitable for each of the above-mentioned work purposes. It is left to the skill of the operator. In fact, the experience and intuition of workers are important. The machine body of the double sander is set to output speed, orbit, and a certain amount of weight, and maximizes functionality by matching the pad (ie, polishing tool) and paper-like abrasive. is there. That is, the higher the output speed and the larger the orbit, the higher the polishing rate, and the heavier the weight, the greater the burden on the operator but the higher the polishing rate. The particle size of the abrasive also affects the polishing rate.

As shown in FIG. 17, a general double sander has a pad 101 on a female screw formed inside a rotation shaft S of a rotation mechanism (not shown) of a polishing apparatus SW that rotates by supply of high-pressure air, for example. The male screw of the shaft 102 is configured to be screwed. That is, as shown in FIG. 18, the pad 101 has a rotation shaft 102 that is screwed to the rotation shaft S of the rotation mechanism, and is attached to the rotation body 103 (for example, a rotation body 103 made of FRP, SUS, etc.) An elastic body 104 made of, for example, a rubber sponge, and a paper-like polishing bonded to the bottom surface of the elastic body 104 via a surface fastener (also referred to as Velcro Magic or Magic Fastener (registered trademark)) 105. The material 106 is provided.
When the pad 101 is used, as shown in FIG. 19, for example, when the putty P applied to the metal surface undulates in an uneven shape, the elastic body 104 is accompanied by the unevenness of the putty P by the pressing force applied by the operator. Then, the putty P is polished by rotating while repeating a certain amount of contraction deformation (that is, contraction deformation proportional to the hardness).

Here, the elastic body 104 generally has a tapered shape in which the area of the bottom surface on the polishing surface side is larger than the upper surface on the mounting surface side. Therefore, the edge side of the bottom surface of the elastic body 104 is in FIG. As shown in A of FIG. 19, the angle is slightly acute and can be bent outward as shown in B of FIG. However, increasing the angle of the edge portion of the elastic body 104 to increase the degree of flexibility is limited from the standpoint of polishability, that is, from the standpoint of polishing efficiently and with sufficient pressing force. Therefore, the bending size of the edge portion cannot be increased too much.
This is because, in a polishing operation performed by concentrating the pressing force on the edge side of the polishing material 106 by tilting the double sander obliquely to bend the edge portion of the elastic body 104, the flexible portion cannot be increased. Cannot be increased, and the workability is inferior. Even if the edge portion of the elastic body 104 can be bent greatly, it is difficult for the operator to adjust the pressing force and the inclination angle because the stability of the flexible portion is low. And has the disadvantage of requiring skill.

For this reason, the inventor according to the present invention has previously proposed a polishing tool that improves the workability of the polishing work inclined obliquely (Patent Document 1: Japanese Patent Application Laid-Open No. 2001-219379). The polishing tool disclosed in Patent Document 1 is an elastic member made up of a hard sponge and a coil spring between a holding plate attached to a rotating shaft of a double sander, a movable substrate portion holding a paper-like abrasive and a holding plate. (See Patent Document 1).
That is, in the related art, the edge side of the bottom surface of the elastic body 104 has a slightly acute angle and can be bent outward, but the edge portion of the elastic body 104 can be greatly bent. Even if it comprises, since the stability of a flexible part is low, there existed a problem that adjustment of the pressing force and adjustment of an inclination angle by an operator was difficult, and required skill.
For this reason, although the polishing tool shown in Patent Document 1 is proposed, since the elastic member is composed of a sponge and a coil spring, there is a disadvantage that the number of manufacturing steps is large and it is not preferable from the viewpoint of productivity. . Further, even if a plurality of hard sponges are integrally formed with the coil spring in advance, the diameter of the hard sponge is relatively small, and therefore the reliability of the strength of the hard sponge is low. Therefore, if the deformation of the elastic member that rotates while being bent along with the polishing operation is repeated at a high speed, it is easily expected that the base of the hard sponge will be broken and separated from the elastic member. The When the hard sponge is broken, the balance of stress applied to the elastic member is lost, and it becomes very difficult to handle, and there is a problem that it may cause danger to the operator.

In view of the above problems, the inventor of the present application can easily perform a smooth polishing operation by inclining obliquely in the polishing of a concave surface portion or a corner portion, without needing skill, in addition to the surface polishing operation. By adjusting the height according to the situation, it is possible to flexibly cope with it, and it is easy to manufacture and has sufficient durability, which ensures a long life and high safety. Further, a polishing apparatus capable of performing the present invention has been proposed as Japanese Patent Application No. 2003-196385 (hereinafter, the invention according to this application is referred to as “prior application invention”).
That is, according to claim 4 of the invention of the prior application, an elastic body having a disk shape and having a plurality of cutout holes or grooves of a required shape,
A polishing material holder that has a plurality of radial grooves at each required angle from the center of rotation or the opening or dust collection hole of the rotation center on one surface, and holds the polishing material detachably on the bottom surface side. And
A polishing tool characterized by bonding the abrasive holding body to the elastic body is described, and
In claim 8, a rectangular elastic body having a plurality of cutout holes or grooves of a required shape,
One surface has a plurality of grooves formed along the longitudinal reciprocating direction, and can be bent with the groove as a boundary, and the abrasive is detachably held on the one surface or the other surface side. A rectangular abrasive holding body that
A polishing tool is described in which the rectangular abrasive material holding body is integrally joined to the rectangular elastic body.

JP 2001-219379 A Japanese Patent Application No. 2003-196385

However, in the above-described prior application disclosed in Patent Document 2, in the polishing apparatus using the polishing tool, the polishing tool is moved when the polishing apparatus is moved when the polishing target surface is polished by tilting the main body. Since the vicinity of the outer peripheral surface is in a bent state, the polishing machine is difficult to move, and if excessive force is applied, there is a risk of forming unnecessary recesses on the surface to be polished or making holes depending on the thin metal surface. There was this.
Further, the invention of the prior application has a drawback that it requires considerable skill to polish while always applying a constant force when the polishing apparatus is tilted.
The present invention has been made in view of the above-described circumstances, and the first object is to perform a smooth polishing operation by inclining obliquely in the polishing of concave surfaces and corners as well as the surface polishing operation. An object of the present invention is to provide a polishing apparatus which can be easily and easily performed, can reduce the possibility of failure as little as possible without requiring much skill, and has a simple structure and can be manufactured at low cost.
A second object of the present invention is to provide a polishing apparatus that can be applied to various polishing apparatuses and can achieve both of the first objects.

In order to achieve the above object, the invention according to claim 1 is a polishing apparatus having a polishing tool for polishing a surface to be polished manually or with power.
A polishing tool having at least an end portion having flexibility;
A pair of first rollers, which are disposed so as to be positioned near the outside of the polishing tool, are supported on both ends of the main body and roll in one direction on the surface to be polished, and shafts of the pair of first rollers A second roller that is parallel to the center and is supported by the main body part at a predetermined distance and rolls on the non-polished surface in the one direction;
A height adjusting means that is attached to the main body and regulates a height of the first roller relative to the main body;
An inclination adjusting means that is attached to the main body part and regulates an inclination amount of the main body part;
At least the second roller is elastically held with respect to the main body, and is configured to be able to incline the main body over a predetermined range with respect to the surface to be polished.

According to a second aspect of the present invention, the first roller is elastically held with respect to the main body so that the main body can be moved up and down over a predetermined range with respect to the surface to be measured. It is characterized by comprising.
The invention described in claim 3 is a single sander type or double sander type polishing apparatus that polishes a surface to be polished by rotating or eccentrically rotating a disc-shaped polishing tool, wherein the main body portion is It consists of an upper body part and a lower body part, and the lower body part is provided with the first roller, the second roller, the height adjusting means and the inclination adjusting means,
The upper main body is provided with at least a handle and a rotation driving unit, and the upper main body is rotatable relative to the lower main body over a predetermined range and fixed at a desired angular position. It is characterized by having comprised so that it may obtain.

The invention according to claim 4 is a straight sander type polishing apparatus that polishes a surface to be polished by reciprocating a rectangular polishing tool in a longitudinal direction, wherein the pair of first rollers includes: The second roller is provided at a position corresponding to the outer side of the polishing tool on a line passing through the center in the short direction of the polishing tool, and the second roller is parallel to the axis of the first roller and It is provided at a position corresponding to the outside of the polishing tool.
Further, in the invention according to claim 5, the pair of first rollers are respectively provided at positions corresponding to both outer sides of the polishing tool on a line passing through substantially the center of the disk-shaped polishing tool,
The second roller is provided in a position parallel to the axis of the first roller and corresponding to the outside of the polishing tool.
Further, the invention according to claim 6 is a hand file type polishing apparatus that presents a rectangular shape and manually polishes the surface to be polished by reciprocating the polishing tool by manual operation,
The pair of first rollers are provided on the main body at positions corresponding to both outer sides of the polishing tool on a line passing through substantially the middle in the short direction of the rectangular polishing tool,
The second roller is provided in the main body at a position parallel to the axis of the first roller and corresponding to the outside of the polishing tool.

In the invention according to claim 7, the second roller is rotatably supported on the other end of a connecting rod whose one end is axially supported by the bearing member of the first roller, It is urged | biased in the direction away from the said main-body part or a lower main-body part by the elastic member inserted between the said main-body parts.
According to an eighth aspect of the present invention, the second roller is elastic by a leaf spring having one end connected to the first roller bearing member and the other end connected to the bearing member of the second roller. It is characteristically supported.
According to a ninth aspect of the invention, the first roller and the second roller are elastically held by a coil spring interposed between the main body portion and the bearing member. Features.

The invention according to claim 10 is characterized in that the second roller is composed of two rollers disposed on a concentric shaft.
Further, in the invention described in claim 11, the polishing tool includes a rectangular elastic body having a plurality of cutout holes or grooves of a required shape,
One surface has a plurality of grooves formed along the longitudinal reciprocating direction, and can be bent with the groove as a boundary, and the abrasive is detachably held on the one surface or the other surface side. A rectangular abrasive holding body that
The rectangular abrasive material holding body is integrally joined to the rectangular elastic body.
The invention according to claim 12 is characterized in that the polishing tool has a disk shape and has a plurality of cutout holes or grooves of a required shape;
A polishing material holder that has a plurality of radial grooves at each required angle from the center of rotation or the opening or dust collection hole of the rotation center on one surface, and holds the polishing material detachably on the bottom surface side. And
The abrasive holding body is bonded to the elastic body.

According to the invention of claim 1, in a polishing apparatus having a polishing tool for polishing a surface to be polished manually or with power,
A polishing tool having at least an end portion having flexibility;
A pair of first rollers, which are disposed so as to be positioned near the outside of the polishing tool, are supported on both ends of the main body and roll in one direction on the surface to be polished, and shafts of the pair of first rollers A second roller that is parallel to the center and is supported by the main body part at a predetermined distance and rolls on the non-polished surface in the one direction;
A height adjusting means that is attached to the main body and regulates a height of the first roller relative to the main body;
An inclination adjusting means that is attached to the main body part and regulates an inclination amount of the main body part;
Since at least the second roller is elastically held with respect to the main body, and the main body can be inclined with respect to the surface to be polished over a predetermined range, of course, the surface polishing operation is of course. In addition, it is possible to perform a gentle polishing operation by tilting obliquely in polishing of a concave surface portion or a corner portion, etc. very easily and lightly, and even a worker who has little experience in polishing work can perform good polishing without failure, In addition, the structure is simple and can be manufactured at low cost, and it can be applied to various types of polishing equipment such as double sander, straight sander, orbital sander, hand file, etc. An applicable polishing apparatus can be provided.

According to the invention of claim 2, the first roller can be elastically held with respect to the main body and can move the main body up and down over a predetermined range with respect to the surface to be measured. Since the polishing tool is elastically applied to the surface to be polished in a direction perpendicular to the surface to be polished, it is easy to subtly apply the force applied to the main body, and for example, a force exceeding the elastic force is applied. However, if it is set to a predetermined height by the height adjusting means, a constant force is always applied to the surface to be polished, and the first roller and the second roller are moved by rolling, so it is light. A polishing apparatus capable of moving the surface to be polished can be provided.
According to a third aspect of the present invention, there is provided a single sander type or double sander type polishing apparatus for polishing a surface to be polished by rotating or eccentrically rotating a disc-shaped polishing tool. The upper body portion and the lower body portion, the lower body portion is provided with the first roller, the second roller, the height adjustment means and the inclination adjustment means,
The upper main body is provided with at least a handle and a rotation driving unit, and the upper main body is rotatable relative to the lower main body over a predetermined range and fixed at a desired angular position. In addition to the effect of the invention according to claim 1 or 2, the upper main body portion is provided with respect to the first and second rollers, the height adjusting means and the inclination adjusting means provided in the lower main body portion. It is possible to provide a polishing apparatus capable of further improving the usability of the polishing apparatus in accordance with the condition of the surface to be polished by changing the handle, lever, etc., provided to the arbitrary position.

  According to a fourth aspect of the present invention, there is provided a straight sander type polishing apparatus for polishing a surface to be polished by reciprocating a rectangular polishing tool in a longitudinal direction, wherein the pair of first rollers Are provided at positions corresponding to the outside of the polishing tool on a line passing through the center in the short direction of the polishing tool, and the second roller is parallel to the axis of the first roller. In addition, when the surface to be polished is substantially flat, the first roller and the first roller can be applied by applying a force to a portion substantially corresponding to the center of the rectangular polishing tool. Since the second roller rolls at substantially the same height, the surface can be evenly polished, and when the surface to be polished is uneven, a force biased to the second roller (second Upper body part and lower body part by applying a force toward the roller) Since the first roller and the second roller roll while the polishing tool is tilted to the side where the second roller exists, the polishing apparatus can be moved easily and stably. By appropriately adjusting the angle, it is possible to polish at an angle regulated by the inclination adjusting means, and therefore it is possible to provide a polishing apparatus capable of performing preferable uniform polishing.

According to a fifth aspect of the present invention, the pair of first rollers are provided at positions corresponding to both outer sides of the polishing tool and on a line passing through substantially the center of the disk-shaped polishing tool. And
Since the second roller is provided at a position parallel to the axis of the first roller and corresponding to the outside of the polishing tool, when the polishing surface is substantially flat, a disc-shaped polishing is performed. By applying a force to the upper main body corresponding to approximately the center of the tool, the first roller and the second roller roll at substantially the same height, so that the surface can be evenly polished, If the surface is uneven, the upper body part, the lower body part, and the polishing tool are tilted to the side where the second roller exists by applying a biased force (force toward the second roller) to the second roller. Since the first roller and the second roller roll as they are, the polishing apparatus can be moved lightly and stably, and in particular, it is regulated by the inclination adjusting means by appropriately adjusting the inclination adjusting means. Preferred uniform polishing because it can be polished at an angle It is possible to provide a polishing apparatus capable subjected.

Further, according to the invention of claim 6, a hand file type polishing apparatus that exhibits a rectangular shape and manually polishes the surface to be polished by reciprocating the polishing tool by manual operation,
The pair of first rollers are provided on the main body at positions corresponding to both outer sides of the polishing tool on a line passing through substantially the middle in the short direction of the rectangular polishing tool,
Since the second roller is provided in the main body at a position parallel to the axis of the first roller and corresponding to the outside of the polishing tool, when the polishing surface is substantially flat, The first roller and the second roller roll at almost the same height by applying a force to the main body corresponding to substantially the center of the rectangular polishing tool, so that the surface can be evenly polished. If the surface to be polished is uneven, the main body and the polishing tool are tilted to the side where the second roller exists by applying a biased force (force toward the second roller) to the second roller. Since the first roller and the second roller roll, the polishing apparatus can be moved lightly and stably. In particular, the angle regulated by the tilt adjusting means can be adjusted by appropriately adjusting the tilt adjusting means. As it can be polished, preferable uniform polishing is possible. It can provide and may polishing apparatus.

According to a seventh aspect of the present invention, the second roller is rotatably supported on the other end of a connecting rod whose one end is axially supported by the bearing member of the first roller, and the connection Since the elastic member inserted between the bag and the main body portion urges the main body portion or the lower main body portion away from the main body portion or the lower main body portion, the second roller is moved to the main body portion or the lower main body portion with a simple configuration. On the other hand, it is possible to provide a polishing apparatus that can be elastically supported and perform its intended function.
According to an eighth aspect of the present invention, the second roller is a plate spring having one end connected to the first roller bearing member and the other end connected to the bearing member of the second roller. Since it is supported elastically, it is possible to provide a polishing apparatus that can achieve further simplification as compared with the invention according to claim 7.
According to the invention of claim 9, since the first roller and the second roller are elastically held by a coil spring interposed between the main body portion and the bearing member, It is possible to provide a polishing apparatus capable of elastically supporting the first roller and the second roller with respect to the main body portion or the lower main body portion with a configuration different from that of the inventions of the seventh and eighth aspects.

According to the invention described in claim 10, since the second roller is composed of two rollers disposed on the concentric shaft, the tilt adjusting means can be attached to the intermediate portion of the two rollers. Thus, it is possible to provide a polishing apparatus that can eliminate the disadvantages of unnecessary bending of the middle portion of the long roller.
According to the invention of claim 11, the polishing tool includes a rectangular elastic body having a plurality of cut-out holes or grooves of a required shape,
One surface has a plurality of grooves formed along the longitudinal reciprocating direction, and can be bent with the groove as a boundary, and the abrasive is detachably held on the one surface or the other surface side. A rectangular abrasive holding body that
Since the rectangular abrasive material holding body is integrally bonded to the rectangular elastic body, a longitudinal reciprocating direction of the rectangular elastic body having a plurality of cut-out holes or grooves of a required shape as a polishing tool. A rectangular abrasive material holder that can be bent at each of the plurality of grooves formed along the boundary is attached, so that in the polishing operation by the reciprocating movement of the rectangular elastic body and the rectangular abrasive material holder, When tilted obliquely in the rotational direction around the reciprocating movement direction axis, the abrasive and the abrasive holding body are deformed so as to conform to the polishing surface, and the polishing area can also be secured widely, therefore It is possible to provide a polishing apparatus capable of stably performing a polishing operation with good operability and workability without requiring operator skill.

According to the invention described in claim 12, the polishing tool has a disk shape, and has an elastic body having a plurality of cutout holes or grooves of a required shape,
A polishing material holder that has a plurality of radial grooves at each required angle from the center of rotation or the opening or dust collection hole of the rotation center on one surface, and holds the polishing material detachably on the bottom surface side. And
Since the abrasive holding body is bonded to the elastic body, the required angle from the opening or dust collection hole of the required diameter of the rotation center with respect to the elastic body having a plurality of cutout holes or cutout grooves as a polishing tool. Abrasive material holder that can be bent at each of a plurality of grooves formed radially is mounted, so that it is highly reliable in terms of strength and safety even when used for many years, and more elastic and abrasive material holder Because of its excellent bendability and followability, it is possible to polish flat surfaces as well as uneven parts over a wide range, and a polishing device with excellent stability and workability without requiring skill for the operator. Can be provided.

Hereinafter, a polishing apparatus according to an embodiment of the present invention will be described with reference to FIGS.
1 to 4 are views showing an external configuration of a polishing apparatus according to a first embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a side view, FIG. 3 is a top view, and FIG. It is a front view.
As shown in FIG. 1, the polishing apparatus used in this embodiment is a polishing apparatus called a straight sander equipped with a polishing tool that reciprocally moves a rectangular polishing tool in the longitudinal direction by supplying electric power or compressed air. S1. The straight sander type polishing apparatus S1 is composed of an upper body part B1 and a lower body part B2, and both body parts B1 and B2 are connected and fixed by four L-shaped fixtures 1 and fastening bolts 2. . However, both the main body portions B1 and B2 may be integrally formed without being configured as separate bodies. Therefore, the upper main body portion B1 and the lower main body portion B2 may be simply referred to as a main body portion B.
The upper body B1 includes a handle T1 projecting from one end, a lever L1 that opens and closes an air valve (or an energizing switch in the case of an electric type) provided along the handle T1, a handle, Has a knob H1 and the like provided on the opposite side.

The lower main body B2 includes a first roller 3, a second roller 4, a height adjusting screw 5 as a height adjusting means, a tilt adjusting screw 6 as a tilt adjusting means, 2 and the like (hereinafter, these are collectively referred to as “guide unit for polishing apparatus”, hereinafter simply referred to as “guide unit G”).
The first embodiment shown in FIGS. 1 to 4 has a difference in part of the guide unit G, but the basic configuration is common.
Hereinafter, with reference to FIGS. 1 to 5, the guide unit G in the first embodiment of the present invention will be mainly described in detail.
The first roller 3 is attached to the lower main body B2 at a position corresponding to both outer sides of the polishing tool 51a on a line that passes through substantially the center in the short direction of the polishing tool 51a having a rectangular shape.

  The first roller 3 is rotatably supported by a bearing fixed to the lower main body B2. However, an elastic member made of a coil spring, a leaf spring, a torsion spring, or the like may be interposed between the bearing and the lower main body B2. In this way, soft and delicate polishing can be performed on the surface to be polished, and accurate polishing can be performed by the combined use with the height adjusting screw 5 described above.

One end of a connecting rod 7 is rotatably fixed to the bearing of the first roller 3, and the other end of the connecting rod 7 is fixed to the bearing of the second roller 4. For example, as shown in FIG. 5, a folded leaf spring 8 (however, as will be described later, is not limited to a leaf spring) is fixed to the intermediate portion.
The second roller 4 is provided at a position parallel to the axis of the first roller 3 and corresponding to the outside (front side) of the rectangular polishing tool 51a.
That is, the second roller 4 has a shape in which the long roller is separated into two (of course, it may be a single long roller as shown in FIG. 5), and both ends thereof are bearings. The bearing is connected to the other end of the connecting rod 7.
The second roller 4 is elastically supported in an inclined direction together with a bearing attached to the other end of the connecting rod 7 in which a folded leaf spring 8 is inserted between the second roller 4 and the lower body portion B2.
As a means for elastically supporting the connecting rod 7, for example, a coil spring or a torsion spring is inserted between the bearing of the second roller 4 and the lower main body B2 instead of the folded leaf spring 8. Alternatively, the intermediate portion of the connecting rod 7 may be cut out, and the leaf spring may be connected by a set screw or by welding so as to span the cut portion.

On the other hand, a pair of height adjusting screws 5 are provided in the lower main body B2 so as to be able to advance and retract in the vertical direction at upper positions corresponding to the pair of first rollers 3. That is, the tip (lower end) of the height adjusting screw 5 regulates the height position of a part of the bearing that supports the first roller 3.
In this case, in the type in which the bearing of the first roller 3 is fixed to the lower body portion B2, the height position of the bearing of the first roller 3 is directly adjusted. In the type in which the bearing 3 is elastically supported with respect to the lower body B2, the height adjusting screw 5 comes into contact with the bearing to define the limit position at a predetermined position where the elastic member is deformed. .
The height adjustment screw 5 is fixed by tightening the height position lock screw 9 so that the position does not change after being set at a predetermined position (FIG. 1).
When a hexagon bolt is used as the height adjustment screw 5, a lock screw 9 'can be used instead of the height position lock screw 9 as shown in FIGS.
In addition, an inclination adjusting screw 6 is provided at an upper position corresponding to the second roller 4 in the lower main body B2.
In other words, the tip (lower end) of the tilt adjusting screw 6 regulates a position where the tip or the shaft of the bearing supporting the second roller 4 can be engaged.
In order to attach the above-described guide unit G, the guide unit G may be directly attached to the lower main body B2 or may be attached to a plate-like member protruding from the main body B.

As shown in FIGS. 1 and 5, numbers such as “1”, “2”, “3”, “4” are displayed on the upper end surfaces of the height adjusting screw 5 and the inclination adjusting screw 6, and By matching the numerical value with the index 10 displayed on the lower main body B2, the height with respect to the surface to be polished can be regulated manually, and even an unskilled person can perform uniform polishing. Convenient.
Next, a polishing tool suitable for the polishing apparatus S1 including such a guide unit G will be described with reference to FIGS.
FIG. 7 shows a conventional straight sander type polishing apparatus. The polishing tool 51a is described in Patent Document 2 proposed by the present applicant. However, the polishing apparatus of the present invention and the polishing tool 51a are shown in FIG. By using in combination, it is easy to use and good polishing can be performed. That is,
FIG. 6 is a partially cutaway side view showing a state in which the polishing tool used with the guide unit according to the first embodiment of the present invention is mounted on a conventional polishing apparatus.

In FIG. 6, a polishing tool 51a is attached to and detached from a reciprocating moving body (rotor) (not shown) of a straight sander type polishing apparatus S1 having a reciprocating movement mechanism (not shown) that reciprocates (or reciprocating vibration) by supplying electric power or compressed air. A rectangular reciprocating body 52 that is mounted so as to reciprocate (or reciprocally vibrate) along with the operation of the reciprocating mechanism, a rectangular elastic body 53 that is mounted on the bottom side of the rectangular reciprocating body 52, and a rectangular elastic body. A rectangular abrasive material holding body 54 attached to the bottom surface of 53, a rectangular surface fastener (Velcro Magic or Malt Magic, the same: not shown) attached to the rectangular abrasive material holding body 54, and a rectangular surface fastener. And a paper-like rectangular abrasive material 57 that is detachably attached. As the rectangular abrasive 57, it is also possible to use a thin abrasive sheet made of leather and an abrasive adhered to the rectangular abrasive holder 54 by gluing.
FIG. 7 is a plan view showing a configuration of a reciprocating body used for the polishing apparatus according to the present invention.
The rectangular reciprocating body 52 is configured in a rectangular shape (rectangular shape) having a predetermined thickness using, for example, PVC, FRP, SUS, or the like, and as shown in FIG. A long elliptical long hole 61 is formed in the longitudinal direction for fitting, a rectangular dust collection opening 62 is formed on the right side of the long direction of the long hole 61, and tapered at four positions around the long hole 61. Screw holes 63 through which a countersunk screw (not shown) having a head is inserted are formed.

Each screw hole 63 of the rectangular reciprocating body 52 is formed with a dish-shaped head accommodation hole (not shown) for accommodating the head of the countersunk screw on the bottom surface side of the rectangular reciprocating movement body 52. The screw is inserted into the screw hole 63 from the bottom surface side of the rectangular reciprocating body 52 and screwed into a screw hole (not shown) of the polishing apparatus S1, whereby the screw is inserted from the bottom surface side of the rectangular reciprocating body 52. The rectangular reciprocating body 52 is firmly attached and fixed to the polishing apparatus S1 without protruding its head.
The rectangular elastic body 53 is made of, for example, a urethane compression sponge having a hardness of 0 to 10 (ASKER) or a hardness of 20 to 26 (ASKER), and has a thickness of, for example, about 2 mm to 10 mm. For example, it is firmly attached to the bottom surface of the rectangular reciprocating moving body 52 by, for example, screwing a rectangular hole fastener (Velcro Magic) or a counterbore hole formed on the bottom surface side with a washer or the like. ing.

FIG. 8 is a plan view showing a configuration of a rectangular elastic body used in each embodiment according to the present invention.
As shown in the figure, the rectangular elastic body 53 has a straight communication hole formed in the longitudinal direction so as to be slightly biased toward the one side (upper side in FIG. 8) from the center in the short direction. A portion 69 is formed. Four screw holes 66 corresponding to the mounting screw holes 63 formed in the rectangular reciprocating body 52 from the communication hole portion 69 to the polishing apparatus main body, four dust collecting holes 67 formed in both ends, A cutout portion 68 is formed in a branched shape so as to communicate with a portion corresponding to the dust collection hole 72 formed in the rectangular abrasive material holding body 54. The cut-out portion 68 is bent so as to expose the dust collecting holes 72 formed at four positions on the longitudinal center line of the rectangular abrasive material holding body 54. A cut-out portion 68 near the right end of the rectangular elastic body 53 is formed so as to expose the rectangular dust collection opening 62 of the rectangular reciprocating moving body 52.
FIG. 9 is a bottom view showing a configuration of a rectangular abrasive material holder of a polishing tool having a rectangular shape used in the polishing apparatus according to the first embodiment of the present invention.

As shown in the figure, the rectangular abrasive material holding body 54 is formed in a rectangular shape from, for example, PVC, FRP, ABS, or the like, and has an adhesive or a rectangular surface fastener (Velcro Magic) on the bottom surface of the rectangular elastic body 53. Etc. are joined together. Although not shown in detail in the rectangular abrasive material holding body 54, as described above, dust collecting holes 71 are formed at four positions on the left and right in the longitudinal direction, that is, eight positions in total on the left and right. Dust collecting holes 72 are also formed at four positions on the center line in the longitudinal direction of the material holder 54. Further, on the so-called bottom surface (that is, the polishing surface side) of the rectangular abrasive material holding body 54, as shown in the figure, for example, a V-groove 73 that forms, for example, 30 ° along the longitudinal direction is provided every 6 mm with respect to the lateral width. Are formed at regular intervals.
Further, it is desirable that the rectangular abrasive material holding body 54 be joined to the bottom surface side of the rectangular elastic body 53 with the surface on which the V groove 73 is formed facing the direction of the polishing surface. The surface on which the groove 73 is formed may be joined to the bottom surface side of the rectangular elastic body 53. In any case, a rectangular surface fastener (Velcro Magic) having a rectangular shape, for example, is attached to the side that becomes the polishing surface of the rectangular abrasive material holding body 54 via an adhesive or the like. A paper-like rectangular abrasive 57 having a shape is detachably attached.

On the other hand, although not shown in the rectangular surface fastener and the paper-like rectangular abrasive 57, the shape is substantially the same at positions corresponding to the dust collection holes 71 and 72 formed in the rectangular abrasive holder 54. It is assumed that a dust collection hole (not shown) is formed.
When using this polishing tool 51a, first, the polishing tool 51a is mounted on the reciprocating moving body (rotor) of the polishing apparatus S1, and the reciprocating mechanism inside the polishing apparatus S1 is operated by operating the lever L1 of the polishing apparatus S1, thereby polishing. The tool 51a is reciprocated (reciprocating vibration). When the reciprocating polishing tool 51a is pressed against, for example, a putty P (not shown) applied to the vehicle body or the like, the reciprocating rectangular elastic body 53 is pressed through the rectangular abrasive material holding body 54. The reaction force from the putty P is absorbed, the shrinkage deformation and the return deformation are repeated with reciprocation, and the putty P is efficiently polished by the paper-like rectangular abrasive 57 that deforms in response to this.

In particular, the rectangular elastic body 53 is set to an optimal elastic coefficient depending on the shape and arrangement position of the cutout hole 65 formed in the rectangular elastic body 53, so that the paper-like shape attached to the rectangular abrasive material holding body 54 is used. While the rectangular abrasive 57 receives the stable and optimal pressing force of the rectangular elastic body 53, it makes a stable pressing contact with the putty P, and the polishing work of the putty P is also performed on the edge side of the rectangular abrasive 57 having a certain wide area. It can be performed efficiently and with good workability.
Further, the polishing operation is performed by tilting the polishing apparatus S1 and the polishing tool 51a in a direction orthogonal to the direction of the reciprocating movement (reciprocating vibration), that is, in FIG. 6 or FIG. When performing, the edge portion of the front side of the rectangular elastic body 53 maintains an optimal reaction force with good stability due to the cut-out hole, so that the edge side of the rectangular abrasive material holding body 54 is bent into a circular arc and is flexibly bent. Give good pressing force. In particular, when the polishing apparatus S1 and the polishing tool 51a are tilted with the first roller 3 as a fulcrum, a plurality of V grooves 73 along the longitudinal direction are formed in the rectangular polishing tool holder 54 at regular intervals of, for example, every 6 mm. Therefore, as the polishing apparatus S1 is inclined, the rectangular abrasive material holding body 54 bends smoothly around the portion of the V-groove 73 at the optimum position and is stabilized from the edge of the rectangular elastic body 53. By receiving an optimum reaction force, the edge portion of the paper-like rectangular abrasive 57 is gently deformed into a curved surface, and the putty P is efficiently polished with a stable optimum area. In order to convey the optimal reaction force with good stability to the worker, this stabilizes the operability and workability of the worker, and makes it easy to perform the slanting work without inclining the worker without the skill of the worker. It can be done without failure. At this time, if the second roller 4 is regulated by the tilt adjusting screw 6 with the first roller 3 as a fulcrum, polishing can be performed easily and with a constant pressure, so that the polishing operation can be performed more easily and accurately. Can do.

In this way, the rectangular elastic body 53 having the cut-out hole 65 is attached to the rectangular reciprocating moving body 52, and the rectangular elastic body 53 can be bent around a plurality of V-grooves 73. Since the shape abrasive holder 54 is configured to be mounted, there is no weak portion in the same strength, and therefore, it can be stably operated even in long-term use and can be used safely. . In particular, when the polishing operation is performed obliquely, the elastic modulus of the rectangular elastic body 53 is appropriately adjusted by the cutout hole 65 and the synergistic effect of the V-groove 73 of the rectangular abrasive material holding body 54. Because of the action, an optimum pressing force is applied to the outer edge side portion, so that a sufficiently stable and wide polishing area can be secured on the edge side of the rectangular abrasive 57, and the operator does not need to be skilled. In both cases, the polishing operation can be performed stably and with good workability.
On the other hand, when the polishing apparatus S1 is driven by compressed air, for example, when the compressed air is discharged, the dust is collected through the dust collection hole 67, the cutout portion 68, the communication hole portion 69, the dust collection holes 71 and 72, the dust collection opening 62 and the like. Can be sucked and discharged to the outside.

In the rectangular abrasive material holding body 54 shown in FIG. 9, an example in which a plurality of V-grooves 73 are formed at equal intervals of 6 mm is shown. A plurality of V-grooves 81 along the direction are formed, or the pitch is gradually increased, such as 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, and 10 mm, from the edge of the width, and along each of the positions along the longitudinal direction A plurality of V-grooves are formed and a portion where no V-groove is formed is formed, or V-grooves are formed at positions where the interval is appropriately increased from the left and right edges in the longitudinal direction to the center position in the longitudinal direction with respect to the lateral width. By doing so, the workability of the polishing work inclined obliquely may be improved.
FIG. 10 is an explanatory diagram illustrating a situation in which the polishing apparatus S1 according to the present embodiment is tilted when a force (load) is applied downward and obliquely downward. In this embodiment, when a force of 20 to 30 kg is applied obliquely downward (in the direction of the second roller 4), it can be tilted by 12 °. The lower end is configured so as to be in contact with a part of the bearing of the second roller 4 and cannot be tilted further.

The tilt limit angle can be changed within a range of 2 mm (± 1 mm) by the tilt adjusting screw 6.
FIG. 11 shows the relationship between the force applied to the upper main body B1 and the inclination of the polishing apparatus, in other words, the deformation state of the polishing tool 51a in the polishing apparatus according to the first embodiment.
The polishing tool 51a is exemplified by that shown in FIG.
When no force is applied to the polishing apparatus S1, the polishing tool 51a maintains its original size as shown in FIG. 11A, but the second roller 4 as shown in FIG. 11B. When a force biased to about 10 kg is applied, the rectangular elastic body 53 is moderately compressed, and when a force of 20 to 30 kg is further applied as shown in FIG. The shape holding body 54 and the rectangular abrasive 57 are bent, and the end of the rectangular elastic body 53 is completely compressed. In this state, the inclination adjusting screw 6 comes into contact with the bearing of the second roller 4.

FIG. 12 is a perspective view showing an external configuration of a polishing apparatus according to the second embodiment of the present invention.
The second embodiment and the first embodiment have many common points, but the differences are as follows.
That is, this second embodiment uses a polishing tool 51b having a disk shape as a polishing tool, uses a leaf spring 13 as an elastic means for elastically supporting the second roller 4, and The upper main body B1 is rotatable with respect to the lower main body B2 over a predetermined angle range with the center of the disc-shaped polishing tool as the rotation center, and is fixed at a desired angular position. It is different in that it is configured to be held.
That is, the upper main body portion B1 has a handle T2, a lever L2, and a rotation driving portion (not shown in the drawing), and the lower main body portion B2 is a polishing unit guide unit G, that is, the first roller 3. , Second roller 4, leaf spring 13, bearings 11 and 12, height adjusting screw 5, tilt adjusting screw 6, and the like.
Since the polishing apparatus S2 according to the second embodiment configured as described above can change the upper main body B1 to an arbitrary angle position, the polishing apparatus S2 is changed to the direction in which the polishing operation is most easily performed according to the condition of the surface to be polished. Therefore, it is possible to provide a polishing apparatus that is easy to use.

Further, since the leaf spring 13 is employed as means for elastically instructing the second roller 4, the structure is simple and can be manufactured at low cost.
Next, with reference to FIGS. 14 and 15, the characteristic elastic body 41 and abrasive holding body 45 among the optimum polishing tools for the polishing apparatus S <b> 2 shown in FIG. 12 will be described.
As shown in FIG. 14, the elastic body 41 is formed with cutout holes (grooves such as countersink grooves) 42 that are cut out radially from the center in six directions. The length of each cut-out hole 42 is, for example, a length until it appropriately approaches the edge on the outer peripheral side of the disc-shaped elastic body 41, and the width of each cut-out hole 42 is, for example, the first embodiment. It has a wide width substantially corresponding to the diameter of the dust collection hole 36 of the abrasive material holding body 45 shown in FIG. The tip of each cutout hole 42 has a semicircular shape corresponding to the shape of the semi-inner periphery of the dust collection hole 36.

Further, as shown in FIG. 14, a total of three dust collections are arranged at equiangular intervals, that is, 120 ° intervals on concentric circles passing through the center of the radius of the semicircular portion at the tip of each cutout hole 42 in the elastic body 41. A hole 43 is formed. Also, on the concentric circle slightly inward of the concentric circle passing through the center of the radius of the semicircular portion at each end of each cutout hole 42 (for example, on the concentric circle passing through a position shifted inward by the diameter of the dust collecting hole 43). The dust collection holes 44 having the same diameter as the dust collection holes 43 are also formed one by one at regular angular intervals, that is, 120 ° intervals, shifted by 60 ° from the dust collection holes 43. A total of three dust collecting holes 44 are formed. As described above, the elastic body 41 increases the dust collection efficiency by forming the dust collection holes 43 and 44 at every three positions shifted alternately on the two concentric circles.
On the other hand, as shown in FIG. 15, the abrasive material holding body 45 is formed in a disk shape from a resin such as PVC, FRP, or ABS, for example, and has a dust collecting hole (provided that the hole is provided on one side) on one surface. A plurality of V-grooves 47 may be formed radially at intervals of 10 ° from the 50 to the outer peripheral edge. It can be bent with the part as the center of rotation. In addition, the abrasive material holding body 45 has the same number of dust collecting holes (dust collecting holes 50) corresponding to the three dust collecting holes 43 and 44 formed in the elastic body 41 in terms of shape and position. 48) and 49 are formed.

In addition, the polishing tool (not shown) has an abrasive or a surface fastener (Velcro Magic) or the like on the surface on which the abrasive holder 45 is formed with the plurality of radial V grooves 47. It is made to join through. Further, each dust collecting hole formed in the elastic body 41 and the abrasive material holding body 45 also in the paper-like abrasive material 46 attached to the abrasive material holding body 45 via a surface fastener not shown in the drawing. It is assumed that a plurality of dust collection holes (not shown) that match (correspond to) 36, 43, 44, 48, 49, and 50 both in shape and position are formed.
Moreover, the elastic body 41 can reduce (set) the original elastic coefficient of the elastic body 41 to an optimal elastic coefficient from the viewpoint of workability by forming the radial cutout holes 42 as shown in FIG. It is possible. Further, for example, the abrasive material holding body 45 may be joined to the elastic body 41 by positioning each cut-out hole 42 and the radial V groove 47 of the abrasive material holding body 45 so as to overlap each other. In this way, it is possible to concentrate and receive the bending operation of the abrasive material holding body 45 on the edge portions around the respective cutout holes 42 in the elastic body 41, and thereby the elastic coefficient that is relatively lowered by the bending operation is obtained. It becomes possible to improve the bendability (or bendability; the same applies hereinafter) of the abrasive material holding body 45 with good workability by using it in the portion.

On the other hand, this abrasive material holding body 45 also has a plurality of V grooves 47 radially formed at intervals of 10 ° from the dust collection hole 50 at the center of rotation. The angle of 10 ° depends on the polishing device SW and the polishing tool 51b. It has been experimentally confirmed that the angle is optimal for improving the operability and workability when performing the polishing work with the slant being inclined. Therefore, the abrasive material holding body 45 is the case of the first embodiment. It exhibits superior operability and workability, and is less likely to fail without requiring skill, making it even easier to use.
In this embodiment, since the radial wide cut-out holes 42 are formed in the elastic body 41, the elastic coefficient of the elastic body 41 can be set to an optimal elastic coefficient that further improves operability and workability. In addition, since a plurality (that is, 36) of V-grooves 47 are formed radially at intervals of 10 ° in the abrasive material holding body 45, the bendability of the abrasive material holding body 45 is further improved as a whole. From the point of view, the operability and workability can be further improved.

In this embodiment, the case where the radial wide cut-out holes 42 are formed in the elastic body 41 has been described. However, the shape of the cut-out holes 42 is not limited to this, and operability and workability are provided. In order to improve the above, it is possible to form and use a cut-out hole having an arbitrary shape. For example, each of the cut-out holes or grooves may be independent. Of course, the plurality of V grooves 47 of the abrasive material holding body 45 are not formed at every 10 ° angle, but may be formed at any appropriate angle, for example.
FIG. 16 is a front view showing a configuration of a polishing apparatus S3 referred to as a hand file according to the third embodiment of the present invention.
This hand file type polishing apparatus S3 has a handle portion T3 extending in the longitudinal direction at the center in the short direction of the rectangular plate-shaped main body B3, and is attached to the lower surface of the main body B3 in FIG. A suitable polishing tool 51a is mounted. A rectangular polishing material 57 constituting the polishing tool 51a is detachable. In the polishing apparatus S3, the pair of first rollers 3 respectively correspond to the lines passing through substantially the center in the short direction and both outer sides of the polishing tool 51a, as in the straight sander type polishing apparatus shown in FIG. In the position.

The second roller 4 is provided in the main body B3 at a position parallel to the axis of the first roller 3 and corresponding to the outside of the polishing tool 51a. The second roller 4 is composed of two long rollers.
Both ends of the second roller 4 are rotatably supported by bearings 12, 12. The bearing 12 is integrally fixed to the end of the leaf spring 13, and the other end of the leaf spring 13 is Although not appearing in FIG. 1, it is integrally fixed to the bearing 11 of the first roller 3.
A support plate B ′ is fixed to and integrated with the main body B 3 by a set screw 16 via a spacer 15 in the middle. Three tilt adjustment screws 6 are screwed to both ends and an intermediate portion of the support plate B ′, and the positions thereof are fixed by tightening the lock screw 9 ′ at a predetermined height position.
These inclination adjusting screws 6 are arranged at a predetermined interval above the bearing 12 and the intermediate shaft, and the interval can be changed by the rotation of the inclination adjusting screw 6.

In the polishing apparatus S3 configured in this manner, when the handle portion T3 is equally pressed against the polishing surface, the main body portion B3 and the support plate B ′ resist them against the elastic force of the plate spring 13 and the polishing tool 51a. Since the polishing tool 51a is relatively compressed and pressed against the polishing surface with substantially equal pressure, planar polishing is performed by sliding the polishing apparatus in the longitudinal direction with the handle T3 in this state.
Further, when T3 is slid while the polishing apparatus S3 is tilted forward in FIG. 16, the first roller 3 and the second roller 4 slide in the sliding direction while the polishing surface is elastically pressed. Since it rolls in a direction perpendicular to the surface, it can be polished very lightly and uniformly.
The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made.
For example, as the polishing apparatus described above, a straight sander type, a double (action) sander type, and a hand file type polishing apparatus have been described as examples. However, each of the single (action) sander type and orbital sander type polishing apparatuses has been described. Is also applicable.

1 is an external perspective view showing a configuration of a polishing apparatus according to a first embodiment of the present invention. 1 is a side view showing a configuration of a polishing apparatus according to a first embodiment of the present invention. It is a top view which shows the structure of the grinding | polishing apparatus which concerns on the 1st Embodiment of this invention. It is a front view which shows the structure of the grinding | polishing apparatus which concerns on the 1st Embodiment of this invention. It is a perspective view which shows typically the structure of the guide unit for polishing apparatuses which concerns on the 1st Embodiment of this invention. It is a side view which shows the state which mounted | wore the conventional polishing apparatus with the grinding | polishing tool suitable for the grinding | polishing apparatus concerning the 1st Embodiment of this invention partially fractured | ruptured. It is a top view which shows the structure of the reciprocating body used for the grinding | polishing apparatus of the 1st Embodiment of this invention. It is a top view which shows the structure of the rectangular-shaped elastic body used for the grinding | polishing apparatus of the 1st Embodiment of this invention. It is a bottom view which shows the structure of the rectangular-shaped abrasive material holding body used for the grinding | polishing apparatus of the 1st Embodiment of this invention. It is a typical side view explaining the state which inclined the polish device of a 1st embodiment of the present invention. It is a typical side view for demonstrating the pattern in the process of inclining the grinding | polishing apparatus of the 1st Embodiment of this invention. It is a perspective view which shows the external appearance structure of the grinding | polishing apparatus which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows typically the structure of the grinding | polishing apparatus using the guide unit for grinding | polishing apparatuses which concerns on the 2nd Embodiment of this invention. It is a top view which shows the structure of the elastic body of the polishing tool suitable for the grinding | polishing apparatus which concerns on the 2nd Embodiment of this invention. It is a top view which shows the structure of the abrasive material holding body used overlapping with the elastic body of FIG. It is a front view which shows the structure of the grinding | polishing apparatus which concerns on the 3rd Embodiment of this invention. It is a partially broken side view which shows the conventional grinding | polishing apparatus. It is a side view explaining the conventional polishing tool. It is a partially broken front view explaining the usage example of the conventional polishing tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 L-shaped fixing tool 2 Clamping bolt 3 1st roller 4 2nd roller 5 Height adjustment screw 6 Tilt adjustment screw 7 Connecting rod 8 Folding leaf spring 9 Height position lock screw 9 'Lock screw 10 Index 13 Plate Spring 36, 43, 44, 48, 49, 50, 71, 72 Dust collection hole 41 Elastic body 42 Cutout hole 43, 44 Dust collection hole 45 Abrasive material holder 46 Abrasive material 47 V groove 50 Dust collection hole 52 Rectangular reciprocation Moving body 53 Rectangular elastic body 54 Rectangular abrasive material holder 57 Rectangular abrasive material 61 Long hole 62 Dust collection opening 63 Mounting screw hole 65 Cutout hole 66 Screw hole 67 Dust collection hole 68 Cutout part 69 Communication hole part 73, 81 V-groove B1 Upper main body B2 Lower main body H1, H2 Knob L1, L2 Lever S1, S2 Polishing device T1, T2 Handle 51a, 51b Polishing tool

Claims (12)

In a polishing apparatus having a polishing tool for polishing a surface to be polished manually or with power,
A polishing tool having at least an end portion having flexibility;
A pair of first rollers, which are disposed so as to be positioned near the outside of the polishing tool, are supported on both ends of the main body and roll in one direction on the surface to be polished, and shafts of the pair of first rollers A second roller that is parallel to the center and is supported by the main body part at a predetermined distance and rolls on the non-polished surface in the one direction;
A height adjusting means that is attached to the main body and regulates a height of the first roller relative to the main body;
An inclination adjusting means that is attached to the main body part and regulates an inclination amount of the main body part;
At least the second roller is elastically held with respect to the main body, and is configured to be capable of inclining the main body over a predetermined range with respect to the surface to be polished.   2. The first roller according to claim 1, wherein the first roller is configured to be elastically held with respect to the main body and to move the main body up and down over a predetermined range with respect to the surface to be measured. The polishing apparatus as described. A polishing device of a single sander type or a double sander type that polishes the surface to be polished by rotating or eccentrically rotating a disc-shaped polishing tool, and the main body part is composed of an upper main body part and a lower main body part, The lower main body is provided with the first roller, the second roller, the height adjusting means and the inclination adjusting means,
The upper main body is provided with at least a handle and a rotation driving unit, and the upper main body is rotatable relative to the lower main body over a predetermined range and fixed at a desired angular position. The polishing apparatus according to claim 1, wherein the polishing apparatus is configured to be obtained.   A straight sander-type polishing apparatus that polishes a surface to be polished by reciprocating a rectangular polishing tool in a longitudinal direction, wherein the pair of first rollers has a center in a short direction of the polishing tool. The second roller is provided at a position corresponding to the outside of the polishing tool and parallel to the axis of the first roller. The polishing apparatus according to claim 1, wherein the polishing apparatus is provided. The pair of first rollers is provided on a line passing through substantially the center of the disc-shaped polishing tool and at positions corresponding to both outer sides of the polishing tool,
The said 2nd roller is provided in the position which is parallel to the axial center of the said 1st roller, and is corresponding to the outer side of the said grinding | polishing tool. Polishing equipment. It is a hand file type polishing device that presents a rectangular shape and manually polishes the surface to be polished by reciprocating the polishing tool by manual operation,
The pair of first rollers are provided on the main body at positions corresponding to both outer sides of the polishing tool on a line passing through substantially the middle in the short direction of the rectangular polishing tool,
The said 2nd roller is parallel to the axial center of the said 1st roller, and is provided in the said main-body part in the position corresponding to the outer side of the said grinding | polishing tool. The polishing apparatus as described.   The second roller is rotatably supported on the other end of a connecting rod whose one end is axially supported by the bearing member of the first roller, and is inserted between the connecting rod and the main body portion. The polishing apparatus according to claim 1, wherein the polishing apparatus is biased in a direction away from the main body portion or the lower main body portion by an elastic member.   The second roller is elastically supported by a leaf spring having one end connected to the first roller bearing member and the other end connected to the bearing member of the second roller. The polishing apparatus according to claim 1.   The first roller and the second roller are elastically held by a coil spring interposed between the main body and the bearing member. The polishing apparatus according to 1.   The polishing apparatus according to claim 1, wherein the second roller is composed of two rollers disposed on a concentric shaft. The polishing tool is a rectangular elastic body having a plurality of cutout holes or grooves of a required shape,
One surface has a plurality of grooves formed along the longitudinal reciprocating direction, and can be bent with the groove as a boundary, and the abrasive is detachably held on the one surface or the other surface side. A rectangular abrasive holding body that
The polishing apparatus according to any one of claims 1 to 3, wherein the rectangular abrasive material holding body is integrally joined to the rectangular elastic body. The polishing tool has a disk shape, and an elastic body having a plurality of required-shaped cutout holes or grooves;
A polishing material holder that has a plurality of radial grooves at each required angle from the center of rotation or the opening or dust collection hole of the rotation center on one surface, and holds the polishing material detachably on the bottom surface side. And
The polishing apparatus according to claim 1, wherein the abrasive holding body is bonded to the elastic body.

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