JPH04109812U - File for finishing curved surfaces - Google Patents

Abstract

(57) [Summary] [Purpose] A curved surface finishing file for finishing a workpiece having a curved surface, even if the curvature of the curved surface of the workpiece changes in size, the curvature of the file part changes in size. To provide a file for finishing curved surfaces which can be easily manufactured in structure and shape and at low cost. [Structure] File part 3 with file marks 3a formed on one side
and a gripping part 2 provided on the base end side of the file part 3, and the thickness of one side of the file part 3 is continuously reduced from the gripping part 2 side toward the distal end side of the file part 3. The file portion 3 was formed so that it could be easily bent by hand.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a file for finishing curved surfaces used when processing workpieces with curved surfaces. Regarding ri.

0002

[Conventional technology]

Conventionally, when sanding a workpiece with a curved surface, the entire curved surface of the workpiece is In order to make it easier to file the body, for example, Curved surface finish as published in Publication No. 7 or Japanese Utility Model Publication No. 51-1896 A file was used.

0003 Fig. 4 shows a conventional curved surface finishing tool published in the above-mentioned Japanese Utility Model Publication No. 18347/1983. An example of a file, Figure 5 shows the file finishing work using the curved surface finishing file shown in Figure 4. FIG. In FIG. 4, the curved surface finishing file 10 has file marks formed on the arc-shaped outer periphery. The file part 11 has a pair of handles 13 projecting outward in the radial direction of the file part 11. 13 is attached via attachment members 12, 12. This curved surface finishing file 10 has a file mark formed in the file part 11 on the workpiece. Operator A grips the handles 13, 13 with both hands, in the direction of the arrow in Fig. 5. By rotating the curved surface finishing file 10 in the direction, the curved surface of the workpiece W can be filed. It is used for finishing.

0004

[Problem that the idea aims to solve]

However, conventional curved surface finishing files such as those mentioned above cannot be used on the inside of the workpiece. Suitable for sanding concave curved surfaces, but if there is a bulge on the outside of the workpiece. There is a problem in that it is not suitable for sanding a convex curved surface. In addition, the shape of the file part must be formed into a special shape such as an arc or ring shape. This not only increases the production cost of files for finishing curved surfaces, but also increases the cost of producing files for finishing curved surfaces. When attempting to file workpieces with different sizes, the curved surface of the workpiece must be It is necessary to replace the file with a file for finishing curved surfaces according to the size of the curvature. It is necessary to prepare multiple types of files for finishing curved surfaces with different ratios, and it is difficult to manage them. This has the problem of being troublesome and requiring storage space. In addition, in the above-mentioned Japanese Utility Model Publication No. 62-18347, a material with some elasticity is used. By forming a file part, the file can be maintained even if the curvature of the curved surface of the workpiece changes to some extent. The curvature of the file can be changed accordingly, making it easier to replace the file for finishing curved surfaces. Although these materials can be sanded without the need for There is also a problem with the tool life of the finishing file.

[0005] The present invention was created in view of the above-mentioned problems, and its purpose is to: File finishing of not only workpieces with concave curved surfaces but also workpieces with convex curved surfaces. Not only can this be done suitably, but also when the curvature of the workpiece surface changes in size. Also, the curvature of the file part can be changed depending on the size of the curvature of the curved surface, A file for finishing curved surfaces that has a simple structure and shape and can be manufactured at low cost. It is an attempt to obtain li.

[0006]

[Means to solve the problem]

In order to solve the above-mentioned problems, the curved surface finishing file of the present invention has a shaped file. A file consisting of a filed part and a grip part provided on the base end side of this file part. At the time, one side of the file part is directed from the gripping part side to the tip side of the file part. The plate is processed and formed so that the thickness of the plate is continuously reduced, and the file portion can be easily bent by hand. It is characterized by being formed so that it can be opened.

[0007]

[Effect]

The file for finishing curved surfaces of the present invention is constructed as described above, so it is commonly used for finishing curved surfaces. Formed by simply processing and forming the file part of the flat file used for It can be manufactured at extremely low cost. In addition, by making the thickness of the file part thinner, the file part can be easily bent by hand. This makes it possible to file the curved surfaces of convex or concave workpieces. The curvature of the file part can be adjusted according to the size of the curvature of the curved surface of the workpiece. It is possible to change the size, so you can change the size of the curvature with a single curved surface finishing file. File finishing work on various curved surfaces with different degrees is possible and must be prepared. The number of types of files for finishing curved surfaces can be reduced.

[0008]

【Example】

Specific embodiments of the present invention will be described in detail with reference to the drawings. Figure 1 shows the curved surface finishing file of the present invention, (a) is its side view, and (b) is its side view. FIG. The curved surface finishing file 1 has a total length of about 200 mm, and the grip part 2 extends about 110 mm from one end. In addition, the remaining 90 mm is formed as a file part 3 having file marks 3a. It is made by processing and molding a common flat file. On one side of the file part 3, a file is inserted from the grip part 2 side toward the tip side of the file part 3. A plate thickness transition portion 4 is formed to continuously reduce the plate thickness of the rib portion 3. This file The thinner the part 3 is, the easier it is to bend it by hand, but generally the file is made of charcoal. Since it is made of steel such as raw tool steel (SK steel), the thinner the plate is, the more likely it will break. In consideration of the property that it becomes easier to desirable. In addition, the tip 5 of the file section 3 is used when finishing the workpiece with a file. In step 5, the corners of the workpiece are shaved off in order to avoid damaging the finished surface of the workpiece. It is formed into a tapered shape.

[0009] Figure 2 shows a file using the curved surface finishing file of the present invention formed as described above. Diagrams explaining finishing work, (a) is an explanatory diagram of sanding a convex curved surface, (b) is an explanatory diagram of finishing work on a convex curved surface ) is an explanatory diagram of sanding work on a concave curved surface. In Figure 2 (A), in order to finish the convex curved surface of the workpiece Wa, the The file part 3 in which the grooves 3a (see FIG. 1) are formed is brought into contact with the surface of the convex curved surface, Press the other side of the file part 3 onto the curved surface of the workpiece Wa by hand to curve it, and The entire part 3a can be brought into contact with the convex curved surface of the workpiece Wa. Then the song File finishing is performed by reciprocating the surface finishing file 1 on the curved surface. It is. Similarly, a workpiece Wb having a concave curved surface as shown in FIG. Finishing can also be done. In this file finishing, due to the action of the tapered tip 5, the The surface finishing file 1 can smoothly reciprocate on the curved surfaces of the workpieces Wa and Wb. can.

0010 Figure 3 shows the deformation generated on a curved surface using the curved surface finishing file of this invention. It is a figure which shows an example of the removal work. Wd is a deformation generated on the curved surface of the workpiece Wc. To remove this deformation Wd with the curved surface finishing file 1 of the present invention, use a file. Push the file 3a (see Fig. 1) formed on one side of the part 3 onto this deformation Wd. This is done by applying the file and reciprocating the file 1. At this time, it is formed into a tapered shape. The tip 5 contacts the surface of the workpiece Wc, and the file portion 3 curves while touching the tip 5. Since the part 5 slides on the surface of the workpiece Wc, the reciprocating distance of the file part 3 is increased. The deformed Wd can be removed efficiently by using the entire file groove 3a. I can do work. In this example, the curved surface finishing file 1 is a commercially available flat file. Although it is manufactured by processing and molding the material, it is not limited to this.

[0011]

[Effect of the idea]

The curved surface finishing file of this invention can be used to convert commercially available flat files into a grinder or grinder. It can be easily processed and formed by grinding, and has a simple structure, making it extremely safe. Not only can it be manufactured with high precision, but it can also be used for sanding workpieces with concave curved surfaces. It becomes possible to file not only the upper surface but also the workpiece having a convex curved surface. In addition, even if the curvature of the curved surface of the workpiece changes in size, it will adapt to the size of the curvature of the curved surface. Since the file part can be curved, a single file for finishing curved surfaces can be used to finish all types of surfaces. It is now possible to file a curved surface, especially on a concave or conical curved surface. When removing deformation that has occurred, the file part is curved, making it difficult to reciprocate. The effect is great because the distance traveled can be extended. Furthermore, the number of types of files for finishing curved surfaces that must be prepared can be significantly reduced. This not only makes tool management of curved surface finishing files easier, but also saves storage space. The space can also be made smaller.

[Brief explanation of drawings]

FIG. 1 shows a curved surface finishing file according to the present invention, (a) is a side view thereof, and (b) is a plan view thereof.

FIG. 2 is an explanatory diagram of the file finishing work of a workpiece using the curved surface finishing file of the present invention, (a) is an explanatory diagram of the file finishing work of a convex curved surface, and (b) is an explanatory diagram of the file finishing work of a convex curved surface. It is an explanatory view of the sanding work of a curved surface.

FIG. 3 is a diagram showing an example of an operation for removing deformation generated on a curved surface using the curved surface finishing file of the present invention.

FIG. 4 is a perspective view showing an example of a conventional file for finishing curved surfaces.

5 is an explanatory diagram of a curved surface filing operation performed using the curved surface finishing file of FIG. 4; FIG.

[Explanation of symbols]

1 File for finishing curved surfaces 2 Gripping part 3 File section 3a File eye 4 Plate thickness transition part 5 Tip 10 File for finishing curved surfaces (conventional example) 11 File section 12 Mounting parts 13 Handle A worker W, Wa, Wb, Wc Workpiece Wd Deform

Claims (1)

[Scope of utility model registration request] Claim 1: A file consisting of a file portion with file marks formed thereon and a gripping portion provided on the proximal end side of the file portion, in which one side of the file portion is moved from the gripping portion side to the side of the file portion. A file for finishing a curved surface, characterized in that the file is processed and formed so that the thickness of the plate is continuously reduced toward the tip side, and the file part is formed so that it can be easily bent by hand.