JP3153346U - Cutting blade and scaled tool - Google Patents

Abstract

A tool for easily understanding the depth of a hole or groove during processing is provided. A cutting blade includes a blade 2 having a blade portion 1 for cutting or cutting. And the scale 12 which shows the distance from the front-end | tip of a blade part is provided in the blade 2 at right angles to the advancing direction R of a cutting | disconnection or cutting. The chisel with a scale has this cutting blade, and is configured with the blade portion 1 as a cutting blade portion and the blade 2 as a spike. By engraving so that the surface of the processing material and the back part of the ear are perpendicular to each other with this scaled chisel, the scale 12 has already been inserted during processing, so the depth from the surface of the material to the cutting edge can be accurately measured. be able to. [Selection] Figure 1

Description

  The present invention relates to cutting blades such as “saw” and “chisel” used for processing materials such as wood and stone, and a tool having the cutting blade.

  “Saw” and “chisel” are known as cutting tools for processing materials such as wood and stone. Saw is useful when cutting material. The chisel is useful when a hole is carved in the material, a fine part of the material is scraped off, or a groove is carved. In particular, it is indispensable for work such as mortise and grooving.

  In processing that requires accuracy, it is very important to know dimensions such as length, width, depth, and depth during material processing. However, it is common to use a tool for measuring dimensions such as a finger (fitting) or a steel rule for accurate measurement of dimensions.

  A tool that combines a saw and a measure has been proposed, such as a saw with a tape measure or scale on the saw handle or the back of a tooth. (Patent Document 1). Here, it is disclosed that a numerical value and a memory are embedded in a vertical portion at the tip of a saw and can be used as “payment” (see Patent Document 1, fifth paragraph).

Registered Utility Model No. 3025707

  However, conventionally, it has been necessary to repeat processing and measurement until the desired dimensions are reached.

  For example, in the case of processing with a chisel, in order to mortise or groove a material such as wood, it is necessary to preliminarily define a region to be processed by entering dimensions on the material surface. In particular, when the cutting edge (tip portion of the blade) cannot be visually recognized from the outside during machining as in the case of a “mortise”, it is difficult to know how much depth has been advanced during the machining. Although the depth of the hole can be measured by using a caliper, it may not be able to be measured accurately depending on the shape and size of the mortise.

  Or, when machining with a saw, measure the amount of cutting by inserting a tool or the like into the deepest part of the cut groove provided in the material to be machined, or applying a measure or caliper to the surface of the object to be machined. There is a need. In Patent Document 1, a scale is provided starting from a right angle portion. Therefore, the distance from the blade edge, that is, the depth of the deepest portion of the kerf provided in the material cannot be measured.

  In addition, as shown in FIG. 8A, when cutting to the broken line connecting the marks D1 and D2 of the kerf with the saw 30, generally the cutting is advanced from the corner of the material 31, that is, the oblique direction. At this time, since cutting is performed with reference to D1 and D2 that can be visually recognized from the outside, for example, as shown in FIG. In such a case, the depth of the deepest part of the kerf cannot be measured accurately during the cutting process.

  And in both cases of saw and flea, it is necessary to stop the machining once in the middle of machining, and change to the tool for dimension measurement and measure the dimension until the desired dimension value is obtained. The work efficiency was very bad.

  The present invention makes it easy to check the machining amount without changing to a measuring tool during machining of a tool having a cutting blade for cutting or cutting, especially when cutting with a saw or forming a mortise or groove with a chisel. The object is to provide saws and fleas that can be made.

  A cutting blade according to the present invention includes a blade 2 having a blade portion 1 for cutting or cutting. And the scale 2 which shows the distance from the front-end | tip of the blade part 1 is provided in the blade body 2 perpendicularly | vertically with the advancing direction R of a cutting | disconnection or cutting.

  According to the cutting blade according to the present invention, the distance traveled by cutting or cutting from the tip of the blade portion (that is, the depth of the processing target) can be immediately determined by reading the scale exposed from the processing target during processing.

  A chisel according to the present invention includes a cutting blade according to the present invention, a neck portion 3 and a handle 4. The blade portion 1 is a cutting blade portion 1a, the blade 2 is a spike 2a, and the spike 1a and the handle 4 are connected via a neck portion 3 that supports the spike 1a. Further, in the flea according to the present invention, the scale 12 may reach the neck 3.

  According to the chisel according to the present invention, if the scale on the back side of the ear 1 exposed from the processing target during the mortise processing is read, the distance immediately carved from the cutting edge (that is, the depth of the processing target) can be known. There is no need to interrupt the processing and insert measuring tools such as fingers and calipers. Moreover, since the depth is confirmed without moving the cutting edge during machining, the work safety is improved and the work efficiency is also improved. Furthermore, there is an advantage that a large machine or a measuring instrument need not be attached, and handling of the flea itself is not different from the conventional one.

  A saw according to the present invention includes a cutting blade according to the present invention. The blade portion 1 is a saw blade 1b, and the blade 2 is a saw blade 2b.

  According to the saw according to the present invention, if the scale of the saw body 2b exposed from the processing target during cutting is read, the distance traveled from the blade edge (ie, the depth of the processing target) can be immediately determined, so the processing is interrupted. There is no need to use measuring tools such as finger metal and calipers. Therefore, the same effect as the chisel according to the present invention is obtained.

Schematic showing the structure of the cutting blade of embodiment. Schematic showing the structure of the flea with a scale of Example 1. FIG. (A) is a front view, (b) is a rear view, and (c) is a side view. Explanatory drawing showing the usage condition of the flea with a scale of Example 1. FIG. (A) is before processing, (b) is the schematic seen from the side during processing. Explanatory drawing showing a mode that the process amount is measured in the middle of a process by the chisel with a scale of Example 1. FIG. Schematic which shows the structure of the saw with a scale of Example 2. FIG. Explanatory drawing showing the usage condition of the saw with a scale of Example 2. FIG. (A) is a side view before processing, (b) is a schematic view of the saw body from the front before processing, and (c) is a side view from the side during processing. Explanatory drawing showing a mode that the process amount is measured in the middle of a process with the saw with a scale of 3rd Embodiment. Schematic which shows an example of the cutting | disconnection by a saw.

(Embodiment)
FIG. 1 shows the configuration of the cutting blade of the embodiment. As an example, the side where the blade part and the blade can be seen is schematically shown as the front. The cutting blade 100 includes a blade portion 1 and a blade body 2 that perform cutting and cutting. The blade part 1 may be anything as long as it cuts or cuts the material. Specifically, the blade part 1 is a flea cutting edge, a saw blade or the like. The blade 2 is a portion that directly transmits force to the blade 1, and the blade 1 and the blade 2 are integrally formed. The blade body 2 is specifically a saw body having a spike or a saw blade having the cutting blade portion. Generally, a handle or the like is connected to the blade to facilitate processing. This cutting blade can be applied not only to fleas and saws, but also to all cutting and cutting tools including the blade 2 having the blade portion 1 by changing the form.

  On the blade 2, a scale 12 is provided perpendicularly to the direction R of cutting or cutting from the tip of the blade portion 1. As the scale 12, for example, a main scale line and a sub-scale line may be provided. Further, since the scale 12 is peeled off when written on the surface with ink or the like and becomes difficult to read, it is preferable that the scale 12 be formed by cutting an extremely fine groove. However, the depth of the kerf needs to be limited to a depth that does not weaken the steel material of the blade 12. When marking or numerical values with a paint or the like, it is preferable to apply a surface treatment that is resistant to friction and from which the scale 12 can be visually recognized.

  When this cutting blade is used, the depth from the surface of the material 16 to the tip of the blade portion 1 can be accurately measured by reading the scale 12 during cutting or cutting. Hereinafter, a tool using this cutting blade will be specifically described.

Example 1
There are various types of fleas depending on the material to be carved and the application. In the present invention, the flea will be described below with reference to FIG. 2 as an example. Therefore, as long as it is understood as the scope of the technical idea of the present invention, it is not construed as being limited by the following examples in any sense.

  Fig.2 (a) represents the flea with a scale of Example 1 of this invention. A surface side where the cutting edge can be seen is schematically shown as a front surface. The graduated chisel 10 is roughly divided into three parts, the ear 2a, the neck 3 and the handle 4. The ear 2a includes a cutting edge 1a composed of a cutting edge portion 5 and an ear portion 6 for cutting, a small end (comb) 13 that reinforces a side surface portion of the ear, and a surface portion 7 of the ear. The neck 3 is connected to the handle 4 via a base 8, and a katsura 9 is attached to one end of the handle 4.

  FIG. 2B is a diagram schematically showing the back surface portion 11 of the flea with a scale. A scale 12 is provided on the flat back surface portion 11 and reaches the front of the base 8 of the neck portion 3. If necessary, the scale may reach the base 8 or the handle 4. The scale 12 is, for example, a unit of mm in which the main scale line is 4 mm and the sub-scale line is 2 mm, and is provided at equal intervals from the cut edge portion 5.

  In order to make the distance from the cutting edge easy to read, not only a scale but also a numerical value may be provided. However, it should be noted that the reading value needs to be corrected when the cutting edge is retracted by the grindstone. Or you may make the space | interval of an auxiliary | assistant scale small by considering retreat of a cutting edge. The scale interval depends on the required machining accuracy.

  FIG.2 (c) is the side view which showed roughly the small end of the flea with a scale as the front. As shown in this figure, the scale 12 may be provided not only on the back surface portion 11 but also on the small end 13 or the side end portion 14 of the neck portion 3.

  FIG. 3 is a schematic view for explaining a usage mode of a flea with a scale. Fig.3 (a) is the schematic which looked at the flea with a scale from the side just before processing of a material. In order to accurately measure the depth from the surface of the material 16 to the cutting edge with the graduated chisel 10, it is necessary to carve the surface of the material 16 so that the back surface 11 of the graduated chisel 10 is vertical. For example, when a hole is carved in the material 16, the back surface portion 11 of the graduated chisel 10 is made vertical (90 degrees) with respect to the surface of the material 16, and Katsura 9 (not shown) is driven down vertically by the function.

  FIG. 3 (b) is a schematic view of a graduated flea from the side during processing of the material. The back part 11 of the graduated chisel 10 is driven perpendicular to the surface of the material 16.

  FIG. 4 is a schematic view of the graduated chisel in FIG. The depth D3 from the surface of the material 16 to the blade edge can be accurately known by reading the measurement value 15 where the surface of the material 16 and the scale 12 coincide.

  Further, even when the surface of the material 16 and the back surface portion 11 of the graduated chisel 10 cannot be carved so as to be vertical, the edge of the material 16 is brought into contact with the bottom of the processing portion to be measured. The depth from the surface of the material 16 to the cutting edge can be accurately measured by reshaping the graduated chisel 10 so that the back surface portion 11 of the graduated chisel 10 is vertical.

(Example 2)
There are various types of saws depending on the material to be cut and the application. In the present invention, description will be given below using FIG. 5 as an example. Therefore, as long as it is understood as the scope of the technical idea of the present invention, it is not construed as being limited by the following examples in any sense.

  FIG. 5 shows a scaled saw of an embodiment of the present invention. The side surface where the scale is displayed is shown roughly. The scaled saw 20 is roughly divided into two parts, a saw body 2b and a handle 21. The saw body 2b includes a blade 22 that performs a cutting process, a head 24, and a back 25. The handle 21 includes a wisteria roll 26 that stabilizes the grip of the handle 21. The blade span 22 includes a saw blade 1 b including a blade tip 23. The scales 12 are provided on the side surfaces of the saw body 2b at equal intervals from the blade tip portions 23, respectively. For example, when each blade tip 23 is on a straight line when viewed from the side, the scale 12 is provided at equal intervals in parallel with a straight line connecting the blade tips 23. The scale 12 can be provided in the same manner as in the first embodiment. However, when engraving the groove, it is necessary to consider so as not to extremely reduce the strength of the steel material.

  FIG. 6 is a schematic diagram for explaining how to use the scaled saw. Fig.6 (a) is the schematic which looked at the saw with a scale from the side just before processing of a material. By repeatedly pulling the handle 21 back while pressing the saw blade 1b against the material 27, cutting in the direction of the arrow is advanced. FIG. 6B is a schematic view of a saw with a scale just before processing the material, as seen from the head 24 side of the saw body. In order to accurately measure the depth from the surface of the material 27 to the blade tip 23 by the scaled saw 20, it is necessary to cut the surface of the material 27 so that the saw body 2 b is perpendicular. A broken line represents a line scheduled to be cut. FIG. 6 (c) is a schematic view of a scaled saw viewed from the side during processing of the material. The cutting of the material 27 is advanced so that the saw body 2b and the surface of the material 27 are perpendicular to each other.

  FIG. 7 is a schematic view of the scaled saw 20 shown in FIG. The depth D4 from the surface of the material 27 to the blade tip 23 can be accurately known by reading the measured value 32 where the surface of the material 27 and the scale 27 coincide.

  In the present invention, since the depth of the tenon and the length in the cutting direction can be known during processing by reading the scale of the cutting blade, anyone can easily perform processing with higher accuracy than before. In addition, since the movement of the blade for dimension measurement can be minimized during machining, work safety is improved and work efficiency is improved. Therefore, an increase in demand can be expected in the construction field where fleas and saws are used for various processing, and the industrial applicability is extremely large.

DESCRIPTION OF SYMBOLS 1 Blade part 1a Cutting blade part 1b Saw blade 2 Blade 2a Ear 2b Saw body 3 Neck part 4 Handle 5 Cutting edge 6 Ear part 7 Surface 8 Base 9 Katsura
10 Chisel with scale 11 Back surface 12 Scale 13 Small end 14 Side end 15 Measured value (depth)
16 Material 20 Scaled saw 21 Handle 22 Blade 23 Blade tip 24 Head 25 Back 26 Fujimaki 27 Material 28 Measurement (depth)
30 Saw 31 Material 100 Cutting blade R Cutting or cutting direction D1, D2 Cut groove mark D3 Distance (depth) from surface of material 16
D4 Distance from the surface of the material 27 (depth)

Claims (4)

A cutting blade having blades (2, 2a, 2b) having blade portions (1, 1a, 1b) for cutting or cutting, wherein the blade blades indicate the distance from the tip of the blade portions. A cutting blade characterized in that the scale (12) is provided perpendicular to the cutting or cutting direction (R). A chisel with a scale comprising the cutting blade according to claim 1, a neck portion (3), and a handle (4),
The blade portion is a cutting blade portion (1a), and the blade is a spike (2a),
A scaled chisel characterized in that the ear (1a) and the handle (4) are connected via the neck (3) supporting the ear (1a). Scaled chisel according to claim 2, characterized in that the scale (12) reaches the neck (3). A saw with a scale comprising the cutting blade according to claim 1,
The blade is a saw blade (1b), and the blade is a saw blade (2b).

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