JP6504620B2 - Chamfering tool - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a chamfering tool for cutting corners of wood or the like.

  Generally, when processing wood and manufacturing woodworking products, using plate materials and prisms as they are cut with a saw or the like may cause discomfort due to touching feeling or tears. For this reason, chamfering work is performed by scraping the corners with a scissors or a stick file, or using only a sandpaper.

  However, in order to perform uniform chamfering work with scissors and stick files, it is necessary to work while holding the amount of force at a certain angle so that the stick and stick files do not shake It is difficult to do a good-looking chamfering operation with the amateur technique of In addition, even when chamfering work is performed using only a sandpaper, the chamfered surface becomes uneven because it is difficult to adjust the degree of change.

  Therefore, for example, if a deburring tool provided with a metal blade dedicated to chamfering of wood as shown in Patent Document 1 is used, the cutting surface can be accurately processed at a predetermined angle. Compared to the case where general-purpose scissors or stick files are used, it is possible to carry out a chamfering operation that looks good.

Japanese Utility Model Application Publication No. 1-114229

  However, the deburring tool of Patent Document 1 is a kind of scissors and uses a specially shaped blade, and if the blade is worn out, the blade is removed and regrounded, and then the blade outlet is adjusted again. There is a need to.

  The regrinding of this special-shaped blade requires skill and skill, and it is impossible without an expert to adjust the blade's subtle protrusion. The method of sharpening the blade and adjusting the outgoing blade are delicate operations that are changed according to the type of wood to be ground, and if these adjusting operations can not be performed, it is difficult to use as a deburring tool. Therefore, there is a problem that the deburring tool of Patent Document 1 is difficult to use by a layman.

  Furthermore, since the chamfering tool of Patent Document 1 uses a blade, there is also a problem that the object to be chamfered is difficult to apply to a metal material or a hard synthetic resin material.

  An object of the present invention is to provide a chamfering tool capable of solving the above-mentioned problems and easily performing accurate chamfering work on corners of wood or the like even at home.

A chamfering tool according to the present invention for achieving the above object is a chamfering tool having a main body portion in which two sloped portions having an opening angle of approximately 90 degrees are arranged in a V-shaped groove shape on the upper surface, The sloped portion is continuous via the main groove portion, and on both sides of the main groove portion, sub groove portions provided in a pair of side surface portions rising upward from the bottom surface of the main body portion are continuous, the main groove portion and the sub groove portion It is characterized in that a strip abrasive sheet can be attached to the groove .
The chamfering tool according to the present invention is a chamfering tool having a main body portion in which two sloped portions having an opening angle of approximately 90 degrees are arranged in a V-shaped groove shape on the upper surface, and the two sloped portions are main grooved portions. Continuous between the main groove portion and the main groove portion, and the lengths of the short sides of the two slope portions which are rectangular are made different from each other. .

  ADVANTAGE OF THE INVENTION According to the chamfering tool which concerns on this invention, angle of wood etc. can be chamfered simply and correctly using the abrasive sheet stuck on the sticking part of the groove bottom.

It is a perspective view of the chamfering tool for round chamfering. It is a side view. It is a perspective view of the state which affixed the grinding | polishing sheet. It is a perspective view of the state which removed the bottom plate. It is explanatory drawing of use condition. It is a side view of the chamfering tool for plane removal.

The present invention will be described in detail based on the illustrated embodiments.
FIG. 1 is a perspective view of a chamfering tool 1 for rounding in the present embodiment, and FIG. 2 is a side view.

  The inside of the body portion 2 is hollow, and a flat bottom plate 3 is attached to the bottom of the body portion 2 so as to be openable and closable. An abrasive sheet such as a sandpaper to be described later can be stored inside the main body 2.

  The main body portion 2 and the bottom plate 3 are made of synthetic resin, and materials such as metal may be appropriately used in addition to the synthetic resin. Alternatively, a pressing piece may be provided at the end of the bottom plate 3 so that the portion of the pressing piece fits into the bottom of the main body 2. By pressing this pressing piece, it is possible to easily separate the bottom plate 3 locked to the main body 2 from the main body 2.

  With the bottom surface of the main body 2 aligned with the horizontal plane, the slopes 2a and 2b are inclined at approximately 45 degrees to the upper surface side of the main body 2 with respect to the horizontal direction. Is located in Each of the slopes 2a and 2b has a rectangular shape, and is continuous via the attachment portion 4 at the bottom of the groove. Moreover, the side part 2c is provided in the both sides of the longitudinal direction of the main-body part 2. As shown in FIG.

  The sticking section 4 has a shallow main groove 4a curved in an arc shape in cross section and a pair of shallow sub-portions provided on the side surface 2c which are continuous on both sides in the longitudinal direction of the main groove 4a. It is comprised from the groove part 4b. The sub groove 4b is composed of a side groove having the same width as the upper main groove 4a and a lower semicircular side groove. The side surface portion 2 c stands upward from the short side of the bottom surface of the main body portion 2.

  The slope 2a is continuous with the long side 2e rising upward from one long side of the bottom surface of the main body 2 via a ridge 2d, and the slope 2b is a rectangular slope parallel to the slope 2a. It is continuous through 2g and 2f. The slope portion 2b and the slope portion 2g are continuous at an angle of 90 degrees, and the slope portion 2g is continuous via a long side surface portion 2i standing upward from the other long side of the bottom surface of the main body portion 2 and a winding wire 2h . Note that the roaring lines 2d, 2f, 2h are slightly rounded.

  The length of the ridge 2j between the slope 2g and the side surface 2c is shorter than the ridge 2k between the slope 2a and the side surface 2c and longer than the ridge 2l between the slope 2b and the side surface 2c. In terms of dimensions, for example, the length in the longitudinal direction of the main body 2 is 70 mm, the length in the latitudinal direction is 30 mm, and the height of the long side surface 2 e is about 30 mm, and the length of the wire 2j, 2k, 2l Are about 13 mm, 16 mm, and 8.5 mm, respectively. The size of the chamfering tool 1 can be a suitable size according to the thickness of the material to be chamfered and the like.

  A strip abrasive sheet 5 made of sandpaper or the like can be stuck to the sticking section 4. The width and width of the groove of the sticking portion 4 of the polishing sheet substantially coincide with each other, and for example, the width is 4 mm, and the length is, for example, about 120 mm. In addition, the polishing sheet 5 is a paper or non-woven fabric or cloth body whose surface is a polishing layer coated with abrasive grains, the back surface is a pressure-sensitive adhesive layer coated with a pressure-sensitive adhesive, and a peeling tape is stuck on the pressure-sensitive adhesive layer. ing.

  At the time of use, the peeling tape is peeled off from the polishing sheet 5 and the adhesive layer of the polishing sheet 5 is attached along the sticking section 4 as shown in FIG. Since the abrasive sheet 5 fits into the shallow main groove 4a of the sticking part 4, it does not get caught from the edge in the short direction of the abrasive sheet 5 during use, and the abrasive sheet 5 does not slip from the sticking part 4 .

  Further, the polishing sheet 5 is larger than the length of the main groove portion 4a, and the end portion 5a of the polishing sheet 5 is pasted up to the sub groove portion 4b of the pair of side surface portions 2c. There is no possibility that it may be caught on the material to be chamfered and peeled off from the sticking part 4.

  In addition, as shown in FIG. 4, spare polishing sheet 5 and polishing sheets 5 having different counts can be stored in the inside of the main body 2 capable of opening and closing the rectangular bottom plate 3.

  At the time of the chamfering operation, as shown in FIG. 5, the sloped portions 2a and 2b are brought into contact with the rectangular surface of the upper end of the wood W and slid in the direction of the arrow shown. As a result, the polishing layer of the polishing sheet 5 abuts on the corner W1 of the perpendicular surface at an angle of 45 degrees, and the corner W1 can be chamfered into a round surface by the polishing sheet 5 attached in an arc.

  In addition, the standard of board thickness exists, for example like 9 mm, 12 mm, 15 mm, 18 mm, 20 mm, 25 mm, ... in the board material of the wood generally distribute | circulating. There are plate materials with a thickness of 9 mm or less, but there are relatively few plates with a thickness of 9 mm or less, and there are a large number of plates with a thickness of 9 mm or more.

  Therefore, the chamfering tool 1 according to the present embodiment is, for example, for mounting the wood W with a plate thickness of 9 mm, which is a general-purpose plate thickness, on a work bench and performing chamfering work in a stable state, The slope 2g can also be made to slide on the work table by setting the length 2l to 9 mm as described above.

  In addition, since the width of the slope portions 2a and 2b is made different, by contacting the slope portion 2b having a short width with the edge on the thickness side of the wood W, a small thickness of wood placed on the work bench Chamfering is also possible for W.

  In addition, depending on the purpose of use, the abrasive sheet 5 is attached from the rough abrasive sheet 5 to the fine abrasive sheet S or the like, and by selecting the appropriate abrasive sheet 5, it is efficient and beautiful. It is possible to do beveling work.

  In addition, when the polishing sheet 5 is worn or replaced with another one having a different speed, the end of the polishing sheet 5 which is stuck to be protruded from the semicircular groove of the sub groove 4b is peeled off with a nail or the like. Paste the new abrasive sheet 5 again. Therefore, the chamfering operation can be resumed easily with a new polishing layer.

  In the embodiment, although the target of chamfering is wood, since the polishing sheet 5 has a polishing layer of abrasive grains, corner portions of a material to be chamfered made of a metal material or a synthetic resin material as needed. In contrast, it is possible to chamfer.

  FIG. 6 is a side view of the chamfering tool 1 'for planarizing, and the main groove 4a' of the attaching part 4 is in a planar shape parallel to the bottom plate 3. As shown in FIG. Accordingly, the polishing layer of the polishing sheet 5 attached to the main groove 4a 'is planar.

  For this reason, at the time of the chamfering operation, the polishing sheet 5 abuts flatly at an angle of 45 degrees with respect to the corner W1, and the corner W1 is chamfered flat.

  In addition, with respect to the sub groove portion 4b, as shown in FIG. 1, a round side groove having a semicircular shape is formed as shown in FIG. 1 with a chamfering tool for round chamfering, and as shown in FIG. If this is the case, it can be judged instantaneously whether it is a flat chamfered tool or a rounded chamfered tool even from a long distance from the difference in the shape of these side grooves.

  As described above, by using the chamfering tools 1 and 1 ', even a layman can chamfer the material to be chamfered easily and accurately.

1, 1 'Chamfering tool 2 Main body
2a, 2b, 2g Slope portion 2c Side surface portion 2d, 2f, 2h, 2j, 2k, 2l Profile 3 Bottom 4 Attached portion 4a Main groove 4b Sub groove 5 Polishing sheet W Wood W1 corner

Claims (6)

A chamfering tool having a main body portion in which two slope portions having an opening angle of about 90 degrees are arranged in a V-shaped groove shape on the upper surface,
The two slopes are continuous through the main groove,
On both sides of the main groove portion, sub groove portions provided in a pair of side surface portions rising upward from the bottom surface of the main body portion are continuous, and it is possible to attach a strip polishing sheet to the main groove portion and the sub groove portion. Chamfer tool characterized by. A chamfering tool having a main body portion in which two slope portions having an opening angle of about 90 degrees are arranged in a V-shaped groove shape on the upper surface,
The two slopes are continuous through the main groove, and a strip abrasive sheet can be attached to the main groove,
A chamfering tool characterized in that the lengths of the short sides of the two slopes which are rectangular are different . The chamfering tool according to claim 1 or 2 , wherein the sloped portions are arranged to be inclined at approximately 45 degrees with respect to the horizontal direction in a state in which the bottom surface of the main body portion matches the horizontal surface. .   The chamfering tool according to any one of claims 1 to 3, wherein the main groove is curved in an arc shape in cross section. The polishing sheet is a paper, non-woven fabric or cloth having a surface coated with abrasive particles and having a back surface coated with an adhesive, and a release tape is attached on the adhesive layer. The chamfering tool according to any one of claims 1 to 4 , characterized in that. Said inner body portion is a hollow, the bottom surface of the body portion, the bottom plate is mounted openably of claim 1-5, characterized in that the abrasive sheet was capable housed in the body portion The chamfering tool according to any one of the above.

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