JP3133549U - Depth gauge polisher - Google Patents

Abstract

Provided is a depth gauge polisher having a simple structure that is easy to use and capable of polishing a top portion of a depth gauge as easily and accurately as a new article even by a beginner.
SOLUTION: A flat file and a guide plate having a length along the flat file are assembled, and the guide plate exposes a file surface directed downward of the flat file from below. Place it on the opening that is at least as large as possible and on the upper blades on both sides of the depth gauge. The left and right plate surface portions that align the file surface with the optimum polishing height of the depth gauge and the rear end portion of the upper blade are brought into contact with each other so that the file surface does not deviate from the position of the depth gauge. The structure has a standing surface formed with a low vertical height.
[Selection] Figure 1

Description

  The present invention relates to a depth gauge polishing machine that adjusts the height of a depth gauge formed on a cutter blade of a chain saw to an optimum height by polishing.

A chain saw is a power saw that rotates an endless chain (saw chain) with cutter blades at regular intervals using a power source such as an engine to cut down a tree, drop a branch, or throw a fallen tree. Yes, the endless chain is provided with left and right cutter blades at regular intervals.
FIG. 12 is a side view showing one of the cutter blades 22, and FIG. 13 is a perspective view showing a state in which the cutter blade 22 is being polished by a conventional polishing method. As shown in FIG. 12, the cutter blade 22 has an upper blade 22b formed on the upper portion of the main body portion 22, and FIG. 12 shows an operator who uses a chainsaw with the upper blade 22b oriented in the right lateral direction. The cutter blade 22L located on the left side of the endless chain is shown in FIG. In the right cutter blade, the upper blade 22b is directed to the left lateral direction. In both the left and right cutter blades 22, the upper blade 22 b is inclined slightly upward toward the front end direction. A curved notch 22 e is positioned in front of the upper blade 22 b, and a depth gauge further forward. 22c is formed.

  The depth gauge 22c is formed so as not to deeply cut into the tree or kick back when the tree is cut by the cutter blade 22, and is formed slightly lower than the blade edge 22d located at the upper front end of the upper blade 22b. . That is, by providing a difference P in the height between the cutting edge 22d and the depth gauge 22c, the depth of cut by the upper blade 22b is determined, and this difference P differs depending on the type of chain saw, but the one with 0.6 mm is the most. Many of them are seen, and in addition, those set to dimensions smaller than 0.6 mm, for example, 0.4 mm, are also seen.

By the way, when the blade edge 22d of the cutter blade 22 is worn with use, the sharpness deteriorates. When this happens, the sharpness of the blade edge 22d is greatly affected. For this reason, the cutting edge is sharpened (sharpened). However, as shown in FIG. 12, when the number of times the blade edge 22d is polished increases, the height of the blade edge 22d approaches the height of the top of the depth gauge 22c, and the difference P between the heights gradually disappears. If it becomes like this, the cutting depth by 22 d of blade edges will become shallow, and it will become a chainsaw with a bad sharpness.
In such a case, it is necessary to polish the top of the depth gauge 22c and restore the height of the cutting edge 22d and the depth gauge 22c. Conventionally, as shown in FIG. The top of 22c was polished.

  However, as shown in FIG. 13, in the operation of polishing the top portion of the depth gauge using a flat file, the depth gauge 22c and the cutting edge 22d are close to each other, and therefore the cutting edge 22d may be mistakenly polished. Further, since the depth gauge is slightly polished, the depth gauge may be excessively polished. For this reason, it is necessary to perform polishing carefully, and it is sometimes necessary to accurately check the height of the depth gauge during the polishing. As described above, there is a problem that the height adjustment of the depth gauge using only a flat file cannot be performed unless time and skill are used carefully.

  The present invention provides an easy-to-use, simple-to-use depth gauge polisher that can eliminate such problems, and even a beginner can polish the top of a depth gauge as accurately and as accurately as a new article. Is an issue.

  The depth gauge polisher according to claim 1 of the present invention is formed by assembling a flat file and a guide plate having a length along the flat file, and the guide plate is directed downward in the flat file. Place the filed surface on the upper blade on both sides of the opening that has at least a size that can be exposed from below and the depth gauge to be sharpened. The left and right plate surface portions that align the file surface with the optimum polishing height of the depth gauge and the rear end portion of the upper blade are brought into contact with each other so that the file surface does not deviate from the position of the depth gauge. And a standing surface having a low vertical height.

  In the depth gauge polisher of the present invention, the handle is attached to, for example, one end of the flat file on the proximal side. This depth gauge polisher has a handle with one hand and is oriented in a direction perpendicular to the direction of the chain saw, with the standing surface abutting the rear edge of the upper blade of the cutter blade on which the depth gauge is formed. To use. In this case, the file surface that becomes the lower surface of the flat file is positioned above the depth gauge. To polish. In the depth gauge grinder of the present invention, the guide surface is always positioned above the depth gauge because the guide plate is moved back and forth while being brought into contact with the rear end portion of the upper blade.

  The height of the file surface is set at a position lower than the height of the plate surface portion located on both sides along the file surface, and the difference in height between the file surface and the left and right plate surface portions is in an optimum state. The difference between the height of the cutting edge and the height of the depth gauge (for example, 0.6 mm) is set. When the top of the depth gauge is polished on the file surface until this difference P is reached, both the left and right plate surface portions of the guide plate abut against the upper end of each upper blade, and the top of the depth gauge is viewed from above on the file surface. The pressure gauge cannot be pressed and polished, and when this state is reached, the polishing of the depth gauge is completed.

  As the flat file used in the depth gauge of the present invention, it is preferable to use a so-called diamond grindstone whose file surface is formed by fixing diamond particles. The most suitable flat file is one that has diamond filed surfaces on both sides, and when this file is used, it is difficult for the file surface to wear, and when the lower file surface is worn by polishing, Is removed from the guide plate and used with the file surface of the upper surface that is not worn facing the lower surface.

  The handle is optimally provided at one end on the front side of the flat file, but a depth gauge polisher having a handle provided at both front and rear ends of the flat file is also included in the present invention. Further, a depth gauge polisher having a handle provided on the guide plate is also included in the present invention.

  The guide plate is optimally made by processing a single metal plate. In this guide plate, the front plate near the front end is mounted on the lower surface near the front end of the flat file, and the guide position is near the rear end. The surface is attached to the surface near the front end of the flat file, and screws, screws or nuts are used for these attachments. The guide plate may be a guide plate in which a screw to be mounted on the flat file is erected upward from each mounting surface of the guide plate. In addition, an assembly structure guide plate is also included in the present invention.

  Since it is necessary to set the file surface on the lower surface of the flat file to a position lower than the lower surfaces of the left and right plate surface portions located on the left and right sides of the file, it is a plate surface part that is attached to the flat file of the guide plate The surface is at a position lower than the left and right plate surface portions of the guide plate. In addition, a guide plate of a type in which the front end vicinity surface and the rear end vicinity surface of the guide plate are mounted on the lower surface of the flat file may be used. In this type of guide plate, the mounting surfaces are arranged on the left and right sides of the guide plate. It is in a position higher than the plate surface portion. These steps can be easily formed by press working.

  The depth gauge polisher of the present invention having the above-described structure has a simple structure in which a flat file and a guide plate are mounted using screws, screws, or nuts.

  The depth gauge polisher according to claim 2, wherein the opening is formed between a flat file and at least one of the left and right plate surface portions between a plate surface portion positioned on the right side when viewed from the polishing operator. It has a size having a gap for viewing the part from above.

  In the depth gauge polishing work using the depth gauge polisher of the present invention, hold the depth gauge polisher with one hand, and the rear end of the upper plate located next to the depth gauge with the downwardly facing surface located on one side of the guide plate In this state, the top of the depth gauge is polished to the optimum height with the file surface on the lower surface of the flat file. In this way, when the depth gauge grinder is moved back and forth while bringing the standing surface into contact with the rear end portion of the upper blade, the file surface is always at a position above the depth gauge.

  The purpose of sizing the opening formed in the guide plate is to adjust the depth gauge while looking at the endless chain that is visible below from the gap between the flat file and the left and right plate surfaces. Therefore, even when checking the polishing state of the top of the depth gauge that is performed during the polishing operation of the depth gauge, it is sufficient to move the depth gauge polisher slightly in the lateral direction where the standing surface is located. Then, a depth gauge can be seen downward through the gap.

  The height of the file surface is set to a position lower than the height of the plate surface portion located on both sides along the file surface, and the difference in height between the file surface and the left and right plate surface portions is optimal. This is the difference in height between the top edge of the blade and the top of the depth gauge (for example, 0.6 mm). For this reason, when the top part of the depth gauge is polished to the optimum height on the file surface, both the left and right plate surface parts come into contact with the upper end part of the upper blade, and the depth gauge cannot be further polished.

    In the depth gauge polisher according to claim 1, the front surface is moved back and forth while being pressed downward in a posture in which the standing surface is in contact with the rear end portion of the upper blade of the cutter blade in a direction perpendicular to the chain saw. This makes it possible to polish the depth gauge to the optimum height easily and accurately. In addition, in this work, although the troublesome work of checking the height of the depth gauge during the polishing is unnecessary, the depth gauge is not excessively polished. In addition, the depth gauge polisher of the present invention has a simple and easy-to-use structure that enables even beginners to polish a depth gauge with the same quality as a new product.

  In the depth gauge sander according to claim 2, the opening has a size having a gap for viewing a part of the saw chain from above between a flat file and the left and right plate surface portions. Therefore, it is possible to adjust the depth gauge while looking at the saw chain that is visible below from the gap between the flat file and the left and right plate surfaces, especially during the polishing of the depth gauge. Even when checking the state, it is only necessary to move the depth gauge grinder slightly in the lateral direction, and the working efficiency is good.

  The best mode for carrying out the present invention is the depth gauge polisher of the following embodiment.

  1A is a perspective view of the depth gauge polisher 1 according to the first embodiment of the present invention as viewed obliquely from above, FIG. 1B is a perspective view of the same viewed from obliquely below, and FIG. 2 is also an exploded perspective view thereof. 3 is also a plan view, FIG. 4 is also a bottom view, FIG. 5 is also an enlarged side view, FIG. 6 is an enlarged view of a part of FIG. These are sectional views showing the difference in height between the lower surface of the left and right guide plates and the file surface.

  As shown in FIGS. 1 to 5, the depth gauge polisher 1 according to the embodiment of the present invention is configured by assembling a flat file 2 and a guide plate 6.

  The flat file 2 has a handle 3 attached to one end located on the front side, and has file surfaces 4a and 4b made by fixing diamond particles on both surfaces of the flat file main body 4. 2 is formed on the front and back surfaces of the file body 4 with screw insertion holes 4c and 4d through which the screws 10 and 12 are inserted.

The guide plate 6 has the same length as that of the main body 4 of the flat file 2 and a width that allows the guide plate 6 to be placed with sufficient margin on the two upper blades located on both sides of the depth gauge to be polished.
The guide plate 6 is formed with an opening 7 having a size that allows at least the file surface 4a (4b) of the flat file 2 to be exposed from below, and the horizontal width of the opening 7 is the same as that of the flat file 2. The guide plate 6 is formed wider than the lateral width of the file main body 4 so that a gap is formed along both sides of the file surface 4a (4b) when the guide plate 6 is attached. The plate surface portions 6a and 6b located on both sides of the opening 7 serve as surfaces that contact (mount) on the upper blade located on both sides of the depth gauge.

  By bending the guide plate 6 in a position facing downward from the side edge of the plate surface portion 6b on the right side (as viewed from the polishing operator), it is brought into contact with the rear end portion of the upper blade located behind the depth gauge. A standing surface 6e having a low vertical height is formed. A reinforcing standing surface 6d having a low vertical height is formed upward from a side edge along the outside of the left plate surface portion 6a (as viewed from the polishing operator) of the guide plate 6.

  The portions of the guide plate 6 that are positioned in the front-rear direction of the opening 7 are formed on the mounting surfaces 6c and 6h, on which the flat file 2 is mounted, formed by a low step surface having a horizontal width that matches the horizontal width of the flat file main body 4. It has become. The mounting surfaces 6c and 6h are at a position 0.6 mm lower than the lower surfaces of the left and right plate surface portions 6b and 6a of the guide plate 6. The guide plate 6 is attached to the flat file body 4 on each of the mounting surfaces 6c and 6h. Screw insertion holes 6g and 6f are formed for attachment to the.

  In the output gauge grinder 1 of the present invention, the flat file 2 and the guide plate 6 having the shape and structure as described above are arranged such that the mounting surfaces 6c and 6h of the guide plate 6 and the lower surface of the file main body 4 are positioned. The screws 10 and 12 and the nuts 11 and 13 are mounted together.

  As shown in FIG. 7, the depth gauge grinder 1 according to the embodiment of the present invention in which the flat file 2 and the guide plate 6 are assembled in this manner is shown in FIG. The difference P in height from the lower surface of the plate surface portions 6a and 6b is set to be, for example, 0.6 mm lower.

FIG. 8 is a perspective view showing a state in which the depth gauge of the cutter blade of the chainsaw is being adjusted using the depth gauge 1 of the embodiment of the present invention, and FIG. 9 is an enlarged cross-sectional view showing a state immediately after the height adjustment of the depth gauge. ing.
As shown in FIGS. 8 and 9, the depth gauge 22c of the cutter blade 22 of the chain saw 20 is adjusted by using the depth gauge polisher 1 according to the embodiment of the present invention to hold the handle 3 of the depth gauge 1 with one hand. Depth gauge for polishing from the direction perpendicular to the side of the saw chain 21 with the upright surface 6e formed downward from the side edge of the right side plate surface portion 6b (as viewed from the operator). The file surface 4b is placed on the surface 22c, and the depth gauge grinder 1 is pushed back and forth while pressing the depth gauge sander 1 downward with the upright surface 6e in contact with the rear edge of the upper blade 22b located next to the depth gauge 22c. Move and do.

  As shown in FIG. 9, the file surface 4 b facing downward is set at a position 0.6 mm lower than the lower surface portions of the left and right plate surface portions 6 a and 6 b of the guide plate 6. Therefore, the top of the depth gauge 22c is polished until it corresponds to this height difference. When the depth gauge 22c is polished to this height, the left and right plate surface portions 6a and 6b of the guide plate 6 are brought into contact with the upper blades 22b and 22b positioned below, respectively, so that the top portion of the depth gauge 22c is no more. In this case, the adjustment which is polishing of the depth gauge is finished.

  10 and 11 each show a structure for adjusting the amount of polishing the top of the depth gauge. 10 and 11, one or several thin plates 30 such as washers are sandwiched between the main body portion 4 of the flat file 2 and the front and rear mounting surfaces 6d (6h) of the guide plate 6. When both are attached with the screws 12 (10) and the nuts 13 (11), the difference in height between the lower surfaces of the left and right plate surface portions 6a, 6b and the lower surface of the file surface 6a is 0.6 mm or less, for example, 0 .4 mm can be set.

(A) is the perspective view which looked at the depth gauge grinder 1 of Example 1 of this invention from diagonally upward, (b) is the perspective view which looked from the diagonally same bottom. It is an exploded perspective view similarly. It is also a plan view. It is a bottom view similarly. It is also an enlarged side view. It is the figure which expanded and showed a part of FIG. It is sectional drawing which showed the difference of the height of the lower surface of a guide plate on either side, and a file surface. It is the perspective view which showed the state which is grind | polishing the depth gauge of the cutter blade of a chainsaw using the depth gauge grinder of the Example of this invention. It is sectional drawing which expanded and showed the state immediately after height grinding | polishing of a depth gauge. It is sectional drawing which showed the structure for adjusting the quantity which grind | polishes the top part of a depth gauge. It is sectional drawing which showed the structure for adjusting the quantity which grind | polishes the top part of a depth gauge. It is the side view which showed the cutter blade. It is the perspective view which showed the grinding | polishing method of the depth gauge by a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Depth gauge polisher 2 Flat file 3 Handle 4 (Flat file) Main body part 4a, 4b File surface 4c, 4d Screw insertion hole 6 Guide plate 6a Left plate surface portion 6b Right plate surface portion 6c, 6h Mounting surface 6d Standing surface 6e Standing surface 6g, 6f Screw insertion hole 7 Opening 21 Cutter blade 22b Upper blade 22c Depth gauge

Claims (2)

A flat file and a guide plate having a length along the flat file are assembled, and the guide plate has a size that allows the file surface facing downward of the flat file to be exposed from below. Place it on at least an opening and the upper blade on both sides of the depth gauge. The left and right plate surface portions that align the file surface with the optimum polishing height of the depth gauge and the rear end portion of the upper blade are brought into contact with each other so that the file surface does not deviate from the position of the depth gauge. A depth gauge polisher having a standing surface formed with a low vertical height. The depth gauge polishing machine according to claim 1, wherein the opening has a size having a gap for viewing a part of the saw chain from above between a flat file and the left and right plate surface portions.

Images