JPH07276304A - Tip saw of circular saw and its manufacture - Google Patents
Tip saw of circular saw and its manufactureInfo
- Publication number
- JPH07276304A JPH07276304A JP9050494A JP9050494A JPH07276304A JP H07276304 A JPH07276304 A JP H07276304A JP 9050494 A JP9050494 A JP 9050494A JP 9050494 A JP9050494 A JP 9050494A JP H07276304 A JPH07276304 A JP H07276304A
- Authority
- JP
- Japan
- Prior art keywords
- base
- blade
- saw
- blade portion
- circular saw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000013585 weight reducing agent Substances 0.000 abstract 1
- 239000010953 base metal Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
- B23D61/026—Composite body, e.g. laminated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Harvester Elements (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、外周縁にチップがロウ
付け固定されて使用される、丸鋸チップソー及びその製
造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circular saw tip saw in which a tip is brazed and fixed to an outer peripheral edge and a method for manufacturing the same.
【0002】[0002]
【従来の技術】従来、草刈用、木材切断用等に使用され
る丸鋸としては、一般的に均一した厚さの鋼板をプルス
で打ち抜いて台金を成形し、この台金の刃部の外周縁に
多数のチップをロウ付け固定した丸鋸チップソーが知ら
れている。ところで、このチップソーにあっては、重量
的に重くなり、例えば草刈機に使用する場合、草刈機の
ヘッド部分が重くなって、作業がし難いという問題点が
ある。そこで、刃部及び台金全体を合成樹脂で形成した
丸鋸が、例えば特公平6ー12号公報に示す如く提案さ
れている。2. Description of the Related Art Conventionally, as a circular saw used for cutting grass, cutting wood, etc., a steel plate having a uniform thickness is generally punched out to form a base metal, and a blade part of the base metal is cut. A circular saw tip saw in which a large number of tips are brazed and fixed to the outer peripheral edge is known. By the way, this tip saw is heavy in weight, and when it is used for a mower, for example, the head portion of the mower becomes heavy, which makes it difficult to work. Therefore, a circular saw in which the blade portion and the base metal as a whole are formed of synthetic resin is proposed as disclosed in, for example, Japanese Patent Publication No. 6-12.
【0003】この丸鋸は、台金と刃部とを均一の厚さの
合成樹脂製とし、板材を所定の形状に打ち抜き形成する
と共に、各刃部の形状を刈刃の表面部または裏面部に対
し直角状に形成し、一側面より研磨して尖状にしないよ
うにする。また、刃部の外周部を複数個の円弧に仕切
り、各円弧の外周面を切欠部とし、中央の嵌装孔の中心
より最も長い頂部より最も短い頂部までの2分の1、ま
たは3分の2程度の円弧部分だけに刃部を形成し、刃付
けがない部分は切欠部としたものである。In this circular saw, a base metal and a blade portion are made of synthetic resin having a uniform thickness, a plate material is punched into a predetermined shape, and the shape of each blade portion is the front surface portion or the back surface portion of the cutting blade. It should be formed in a right angle with respect to the other side and polished from one side so as not to be pointed. In addition, the outer peripheral portion of the blade portion is divided into a plurality of arcs, and the outer peripheral surface of each arc is a cutout portion, and a half or three minutes from the longest top to the shortest top of the center fitting hole The blade portion is formed only on the circular arc portion of about 2 and the portion without the blade is a cutout portion.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、この丸
鋸にあっては、軽量化は図れるものの、耐久性及び切れ
味において劣るという問題点があった。即ち、刃部自体
も合成樹脂であるため、超硬からなるチップに比べると
硬度的に劣り、例えば石等が当たった場合には欠けや易
く、耐久性において、チップソーには到底及ばない。ま
た、合成樹脂の刃では、チップと同等の切れ味を得るこ
とは困難になる。However, this circular saw has a problem that it is inferior in durability and sharpness although it is possible to reduce the weight. That is, since the blade portion itself is also made of synthetic resin, it is inferior in hardness to a tip made of cemented carbide, and is easily chipped when hit by stones, for example, and is far less durable than a tip saw. Further, it becomes difficult to obtain the same sharpness as a chip with a synthetic resin blade.
【0005】本発明は、このような事情に鑑みてなされ
たもので、その目的は、軽量化が図れ、かつ従来の丸鋸
チップソーと同等の耐久性及び切れ味が得られる、丸鋸
チップソー及びその製造方法を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is a circular saw tip saw which can be reduced in weight, and which has durability and sharpness equivalent to those of a conventional circular saw tip saw. It is to provide a manufacturing method.
【0006】[0006]
【課題を解決するための手段】かかる目的を達成すべ
く、請求項1記載の丸鋸チップソーは、樹脂により成形
された円盤状の基盤と、この基盤の外周部に固着された
金属製の円環状の刃部と、この刃部の外周縁にロウ付け
固定されたチップとを具備する丸鋸チップソーにおい
て、刃部の内周縁に係合部を設け、この係合部に基盤を
溶着させることにより、基盤と刃部とを一体的に固着し
たことを特徴とする。In order to achieve such an object, a circular saw tip saw according to claim 1 has a disk-shaped base formed of resin and a metal circle fixed to the outer peripheral portion of the base. In a circular saw tip saw having an annular blade portion and a tip fixed to the outer peripheral edge of the blade portion by brazing, an engaging portion is provided on the inner peripheral edge of the blade portion, and a base is welded to the engaging portion. According to the above, the base and the blade are integrally fixed.
【0007】また、請求項2記載の丸鋸チップソーは、
係合部が、表裏方向に貫通する孔であることを特徴と
し、請求項3記載の丸鋸チップソーは、係合部が、開口
部側が幅狭に形成された溝であることを特徴とする。The circular saw tip saw according to claim 2 is
The engaging portion is a hole penetrating in the front-back direction, and the circular saw tip saw according to claim 3 is characterized in that the engaging portion is a groove formed with a narrow width on the opening side. .
【0008】また、請求項4記載の丸鋸チップソーの製
造方法は、樹脂により成形された円盤状の基盤の外周部
に、その内周縁に係合部を有する如く円環状に形成され
た金属製の刃部を当接させ、この当接部に加熱コイルを
近接配置し、該部分の刃部を高周波誘導加熱して、基盤
を係合部に溶着させることを特徴とする。また、請求項
5記載の製造方法は、基盤の外周縁に段部を形成し、こ
の段部に刃部の一方の面を当接させた後、刃部の他方の
面に円環状の樹脂製の固定部材を当接させ、その後、刃
部を誘導加熱することを特徴とする。According to a fourth aspect of the present invention, there is provided a method for manufacturing a circular saw tip saw, which is made of a metal and is formed in an annular shape so that an outer peripheral portion of a disk-shaped base formed of resin has an engaging portion at an inner peripheral edge thereof. The blade portion is brought into contact with the heating coil, and the heating coil is disposed close to the contact portion, and the blade portion of the portion is subjected to high frequency induction heating to weld the base to the engaging portion. Further, in the manufacturing method according to claim 5, a step portion is formed on the outer peripheral edge of the base, and one surface of the blade portion is brought into contact with the step portion, and then an annular resin is formed on the other surface of the blade portion. The fixing member made of abutment is brought into contact with the blade, and then the blade is induction-heated.
【0009】[0009]
【作用】まず、請求項1記載の丸鋸チップソーによれ
ば、台金に相当する基盤を樹脂で成形し、この基盤の外
周に金属製の刃部を溶着する。その際、刃部には係合部
を設け、この係合部に基盤の樹脂を溶着させることによ
り、基盤と刃部とを一体的に固着する。刃部の外周に
は、チップがロウ付けされる。基盤を樹脂製にすること
により軽量化が図れ、係合部により、刃部の遠心方向へ
の脱落が防止される等、耐久性が向上すると共に、チッ
プによって従来と同等の切れ味が得られる。According to the circular saw tip saw of the first aspect, the base corresponding to the base metal is molded from resin, and the metal blade is welded to the outer periphery of the base. At this time, the blade portion is provided with an engaging portion, and the resin of the base is welded to the engaging portion to integrally fix the base and the blade portion. Chips are brazed to the outer circumference of the blade. By making the base made of resin, it is possible to reduce the weight, and the engagement part prevents the blade part from falling off in the centrifugal direction. In addition to improving the durability, the tip provides the same sharpness as the conventional one.
【0010】また、請求項2記載の丸鋸チップソーによ
れば、表裏方向に貫通する孔によって、請求項3記載の
丸鋸チップソーによれば、開口縁側が幅狭な溝によっ
て、それぞれ刃部と基盤とが強固に固着され、特に刃部
の遠心方向への脱落が確実に防止される。Further, according to the circular saw tip saw of the second aspect, by the holes penetrating in the front and back directions, and by the circular saw tip saw of the third aspect, the blade portion is formed by the groove having a narrow opening edge side. The base is firmly fixed, and the blade part is surely prevented from falling off in the centrifugal direction.
【0011】また、請求項4記載の丸鋸チップソーの製
造方法によれば、内周縁に係合部を有する刃部を、樹脂
製の基盤の外周縁に当接させ、この当接部分に加熱コイ
ルを近接配置させる。加熱コイルに高周波電流が供給さ
れると、金属製の刃部に渦電流が誘起されて誘導加熱さ
れ、その熱によって刃部に当接している基盤の樹脂が溶
融する。この溶融した樹脂は、刃部の係合部内に進入固
化することにより、基盤と刃部が固着される。Further, according to the method of manufacturing a circular saw tip saw of claim 4, the blade portion having the engaging portion at the inner peripheral edge is brought into contact with the outer peripheral edge of the resin base, and the contact portion is heated. Place the coils in close proximity. When a high-frequency current is supplied to the heating coil, an eddy current is induced in the metal blade to induce induction heating, and the heat melts the base resin in contact with the blade. The molten resin enters the engaging portion of the blade portion and is solidified, so that the base and the blade portion are fixed.
【0012】また、請求項5記載の丸鋸チップソーの製
造方法によれば、基盤の外周縁に段部を形成し、この段
部に刃部の一方の面を当接させる。この刃部の他方の面
には、例えば基盤と同一の樹脂で成形された円環状の固
定部材を当接させる。即ち、刃部は、基盤と固定部材で
挟まれる状態になり、この状態で、刃部が誘導加熱され
ると、固定部材及び基盤が溶融して刃部に溶着する。According to the method for manufacturing a circular saw tip saw of the fifth aspect, a step portion is formed on the outer peripheral edge of the base, and one surface of the blade portion is brought into contact with this step portion. On the other surface of the blade portion, for example, an annular fixing member made of the same resin as the base is brought into contact. That is, the blade is in a state of being sandwiched between the base and the fixing member. In this state, when the blade is induction-heated, the fixing member and the base are melted and welded to the blade.
【0013】[0013]
【実施例】以下、本発明の一実施例を図面に基づいて詳
細に説明する。図1〜図4は、本発明に係わる丸鋸チッ
プソーを示し、図1がその平面図、図2がその断面図、
図3が要部の断面図、図4が要部の平面図である。図1
及び図2において、丸鋸チップソー1は、従来の台金に
相当する円盤状の基盤2と、この基盤2の外周縁に固着
された円環状の刃部3を有している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 4 show a circular saw tip saw according to the present invention, FIG. 1 is a plan view thereof, and FIG. 2 is a sectional view thereof.
3 is a cross-sectional view of the main part, and FIG. 4 is a plan view of the main part. Figure 1
Further, in FIG. 2, the circular saw tip saw 1 has a disk-shaped base 2 corresponding to a conventional base metal, and an annular blade portion 3 fixed to the outer peripheral edge of the base 2.
【0014】基盤2は、例えばフッソ系樹脂、アセター
ル系樹脂、ケイ素系樹脂、あるいはこれらの樹脂の合成
によって射出成形され、その中心には、取り付け孔とし
ての貫通孔4が穿設されている。この基盤2の外周縁
は、板厚部5が形成され、この板厚部5に、刃部3の内
周縁が固着されている。The substrate 2 is injection-molded by, for example, a fluorine-based resin, an acetal-based resin, a silicon-based resin, or a combination of these resins, and a through hole 4 as a mounting hole is formed in the center thereof. A plate thickness portion 5 is formed on the outer peripheral edge of the base 2, and the inner peripheral edge of the blade portion 3 is fixed to the plate thickness portion 5.
【0015】刃部3は、例えばSK材、SKS材等の鋼
板を打ち抜きプレスすることによって、円環状に形成さ
れ、その内周縁部には、図3及び図4に示す如く、複数
の孔6が穿設されている。この孔6内に、基盤2の樹脂
が後述する方法によって、進入固化して、基盤2に刃部
3が固着されることになる。また、刃部3の外周縁に
は、複数個のチップ取付部7(図1参照)が形成され、
このチップ取付部7には、超硬金属からなるチップ8が
ロウ付け固定されている。The blade portion 3 is formed in an annular shape by punching and pressing a steel plate such as SK material or SKS material. Has been drilled. The resin of the base 2 enters and solidifies into the holes 6 by the method described later, and the blade portion 3 is fixed to the base 2. Further, a plurality of tip mounting portions 7 (see FIG. 1) are formed on the outer peripheral edge of the blade portion 3,
A chip 8 made of superhard metal is brazed and fixed to the chip mounting portion 7.
【0016】次に、この丸鋸チップソー1の製造方法を
図5に基づいて説明する。まず、板厚部5に円環状の段
部10が形成された基盤2と、内周縁に孔6が形成され
た刃部3を用意し、基盤2の段部10に、図5(A)に
示すように、刃部3の内周縁を嵌合させる。そして、図
5(B)に示すように、刃部3の上面に、予め所定形状
に成形されている固定部材11を嵌合載置する。この固
定部材11は、基盤2と同一の樹脂によって、基盤2の
段部10に嵌合する如く、円環状に成形されている。Next, a method of manufacturing the circular saw tip saw 1 will be described with reference to FIG. First, a base 2 having an annular step portion 10 formed on the plate thickness portion 5 and a blade portion 3 having a hole 6 formed on the inner peripheral edge thereof are prepared. As shown in, the inner peripheral edge of the blade portion 3 is fitted. Then, as shown in FIG. 5 (B), the fixing member 11 formed in a predetermined shape in advance is fitted and placed on the upper surface of the blade portion 3. The fixing member 11 is made of the same resin as the base 2 and is formed into an annular shape so as to fit into the step portion 10 of the base 2.
【0017】この状態で、図5(C)に示すように、板
厚部5の下面(もしくは上面)に、加熱コイル12を近
接配置する。加熱コイル12は、銅パイプを巻回させる
ことにより形成され、その両端部は、例えばトランジス
タインバータからなる高周波発生装置13に接続されて
いる。そして、高周波発生装置13を作動させて、加熱
コイル12に所定周波数の高周波電流を供給すると、加
熱コイル12から発生する磁束により、刃部3に渦電流
が誘起されて誘導加熱される。In this state, as shown in FIG. 5C, the heating coil 12 is arranged close to the lower surface (or upper surface) of the thick plate portion 5. The heating coil 12 is formed by winding a copper pipe, and both ends of the heating coil 12 are connected to a high frequency generator 13 including, for example, a transistor inverter. Then, when the high frequency generator 13 is operated to supply the high frequency current of the predetermined frequency to the heating coil 12, the magnetic flux generated from the heating coil 12 induces an eddy current in the blade portion 3 to perform induction heating.
【0018】この誘導加熱による熱によって、刃部3に
当接している基盤2及び固定部材11が溶融し、この溶
融した樹脂が刃部3の孔6内に流れ込む。所定時間高周
波電流を供給したら、高周波発生装置13の作動を停止
させる。そして、加熱部分を、自然冷却あるいは強制冷
却させると、孔6内に進入した樹脂が固化し、刃部3が
基盤2と一体化、即ち、刃部3と基盤2が、図3に示す
ように固着されることになる。なお、刃部3の加熱によ
って、基盤2の段部10と固定部材11の当接面も溶着
して、固定部材11が基盤2に一体化される。その後、
刃部3のチップ取付部7にチップ8をロウ付け固定する
ことにより、丸鋸チップソー1が製造される。The heat generated by the induction heating melts the base 2 and the fixing member 11 which are in contact with the blade 3, and the melted resin flows into the hole 6 of the blade 3. After supplying the high frequency current for a predetermined time, the operation of the high frequency generator 13 is stopped. Then, when the heated portion is naturally cooled or forcedly cooled, the resin that has entered the hole 6 is solidified, and the blade 3 is integrated with the base 2, that is, the blade 3 and the base 2 are as shown in FIG. Will be fixed to. By the heating of the blade portion 3, the contact surface between the step portion 10 of the base 2 and the fixing member 11 is also welded, and the fixing member 11 is integrated with the base 2. afterwards,
The circular saw tip saw 1 is manufactured by brazing and fixing the tip 8 to the tip mounting portion 7 of the blade portion 3.
【0019】なお、この実施例において、例えば図6に
示す如く製造しても良い。即ち、図6(A)に示すよう
に、刃部3を基盤2の段部10に嵌合させた状態で、図
6(B)に示すように、予めその下面に突起11aが設
けられた固定板11を、突起11aが孔6内に位置する
如く嵌合する。そして、図6(C)に示すように、加熱
コイル12を近接配置して、刃部3を誘導加熱し、固定
板11及び基盤2を刃部3に溶着する。このようにすれ
ば、溶着後の固定板11及び板厚部5表面の、樹脂の孔
6内への流れ込みによる窪みの発生を防止することがで
きる。この場合、突起11aの代わりに、段部10の底
面10a(図6C参照)に突起を設けても良いし、固定
板11と底面10aの両方に突起を設けることもでき
る。In this embodiment, for example, it may be manufactured as shown in FIG. That is, as shown in FIG. 6 (A), with the blade portion 3 fitted to the stepped portion 10 of the base 2, as shown in FIG. 6 (B), a projection 11a is previously provided on the lower surface thereof. The fixing plate 11 is fitted so that the protrusion 11 a is located in the hole 6. Then, as shown in FIG. 6C, the heating coil 12 is arranged in proximity to the blade portion 3 to induction-heat it, and the fixing plate 11 and the substrate 2 are welded to the blade portion 3. By doing so, it is possible to prevent the occurrence of depressions on the surfaces of the fixed plate 11 and the plate thickness portion 5 after welding due to the resin flowing into the holes 6. In this case, instead of the protrusion 11a, a protrusion may be provided on the bottom surface 10a (see FIG. 6C) of the step portion 10, or a protrusion may be provided on both the fixing plate 11 and the bottom surface 10a.
【0020】このように、上記の丸鋸チップソー1にあ
っては、基盤2が樹脂によって成形されているため、軽
量化が図れ、例えば草刈機に使用すれば、草刈機のヘッ
ド部分が軽くなり、作業を容易に行うことができる。ま
た、刃部3にはチップ8がロウ付けされているため、石
等が当たって欠けることも少なくなり、樹脂製の刃に比
較して耐久性が向上すると共に、従来のチップソーと変
わらぬ切れ味が得られる。As described above, in the circular saw tip saw 1 described above, since the base 2 is formed of resin, the weight can be reduced. For example, when the circular saw tip saw 1 is used in a mower, the head portion of the mower becomes light. , Work can be performed easily. In addition, since the tip 8 is brazed to the blade portion 3, it is less likely to be hit by stones or the like and chipped, which improves durability as compared with a resin blade and has the same sharpness as a conventional tip saw. Is obtained.
【0021】さらに、刃部3の内周縁部に孔6を設け、
この孔6の両側から基盤2及び固定部材11の樹脂を進
入固化させるため、刃部3が基盤2に強固に固着され、
丸鋸チップソー1の回転による遠心力で、刃部3が基盤
2から脱落することもなく、長期に亙って安定して使用
することができる。また、樹脂の材質、厚さ等を適宜に
設定することにより、座屈現象の発生を抑えることもで
き、従来のような、台金の焼入や焼き鈍し作業等が不要
になり、丸鋸チップソー1を安価に製造することができ
る。Further, a hole 6 is provided in the inner peripheral edge of the blade portion 3,
Since the resin of the base 2 and the fixing member 11 is introduced and solidified from both sides of the hole 6, the blade portion 3 is firmly fixed to the base 2,
Due to the centrifugal force generated by the rotation of the circular saw tip saw 1, the blade portion 3 does not fall off the base 2 and can be used stably for a long period of time. In addition, the buckling phenomenon can be suppressed by setting the resin material, thickness, etc. as appropriate, eliminating the need for quenching or annealing of the base metal, which is required in the past. 1 can be manufactured at low cost.
【0022】なお、上記実施例においては、刃部3の内
周縁部に孔6を穿設し、この孔6に基盤2の樹脂等を溶
融進入させたが、本発明はこれに何等限定されず、例え
ば、図7、図8あるいは図9、図10に示すように構成
しても良い。即ち、図7に示すように、刃部3の内周縁
部に開口縁14aが幅狭に形成された楕円形状の溝14
を設け、この溝14内に、図8に示すように、基盤2び
固定部材11の樹脂を進入固化させる。In the above embodiment, the hole 6 was formed in the inner peripheral edge of the blade 3 and the resin or the like of the substrate 2 was melted and introduced into the hole 6, but the present invention is not limited to this. Instead, for example, the configuration may be as shown in FIGS. 7, 8 or 9 and 10. That is, as shown in FIG. 7, the elliptical groove 14 in which the opening edge 14 a is formed narrowly at the inner peripheral edge of the blade portion 3.
As shown in FIG. 8, the resin of the base 2 and the fixing member 11 is introduced and solidified in the groove 14.
【0023】また、図9に示すように、刃部3の内周縁
部に逆三角形状の溝15を設け、この溝15内に、図1
0に示すように、基盤2及び固定部材11の樹脂を進入
固化させる。このように、開口縁側が幅狭の各種形状の
溝14、15を使用しても、遠心力により刃部3の基盤
2からの脱落が確実に防止される等、上記実施例と同様
の作用効果が得られることは明かである。Further, as shown in FIG. 9, an inverted triangular groove 15 is provided in the inner peripheral edge of the blade portion 3, and the groove 15 has the shape shown in FIG.
As shown in 0, the resin of the base 2 and the fixing member 11 is entered and solidified. As described above, even if the grooves 14 and 15 having various shapes having narrow opening edge sides are used, the centrifugal force can surely prevent the blade portion 3 from falling off the base plate 2, and the same operation as the above embodiment. It is clear that the effect will be obtained.
【0024】また、上記実施例においては、刃部3を誘
導加熱する際に、加熱コイル12を刃部3の一方の面側
に近接配置したが、刃部3の両側に配置するようにして
も良いし、基盤2及び固定部材11の樹脂として、グラ
スファイバー入りの樹脂とか、金網入れの樹脂を使用す
る等、適宜の樹脂を使用しても良い。また、上記実施例
においては、基盤に固着された刃部にチップをロウ付け
したが、予めチップがロウ付けされた刃部を基盤に固着
する等、本発明の要旨を逸脱しない範囲において、種々
変更可能であることは言うまでもない。Further, in the above embodiment, the heating coil 12 is arranged close to one surface side of the blade portion 3 when the blade portion 3 is induction-heated, but it may be arranged on both sides of the blade portion 3. Alternatively, as the resin of the base 2 and the fixing member 11, an appropriate resin such as a resin containing glass fiber or a resin containing wire mesh may be used. Further, in the above embodiment, the tip is brazed to the blade portion fixed to the base, but the blade portion to which the tip is brazed in advance is fixed to the base, etc. within a range not departing from the gist of the present invention. It goes without saying that it can be changed.
【0025】[0025]
【発明の効果】以上詳述したように、本発明の丸鋸チッ
プソー及びその製造方法にあっては、台金に相当する基
盤を樹脂で成形することにより、丸鋸チップソーの軽量
化が図れる。また、刃部と基盤を強固に固着することが
できて、従来のチップソーと同等の耐久性及び切れ味を
得ることができる等の効果を奏する。As described above in detail, in the circular saw tip saw and the manufacturing method thereof according to the present invention, the circular saw tip saw can be reduced in weight by molding the base corresponding to the base metal with resin. In addition, the blade portion and the base can be firmly fixed to each other, and durability and sharpness equivalent to those of the conventional tip saw can be obtained.
【図1】本発明に係わる丸鋸チップソーの平面図FIG. 1 is a plan view of a circular saw tip saw according to the present invention.
【図2】同その断面図FIG. 2 is a sectional view of the same.
【図3】同要部の断面図FIG. 3 is a sectional view of the main part.
【図4】同刃部の要部の平面図FIG. 4 is a plan view of a main part of the blade section.
【図5】同その製造方法を示す断面図FIG. 5 is a sectional view showing the manufacturing method thereof.
【図6】同製造方法の他の例を示す断面図FIG. 6 is a sectional view showing another example of the manufacturing method.
【図7】本発明に係わる丸鋸チップソーの他の実施例を
示す要部の平面図FIG. 7 is a plan view of an essential part showing another embodiment of the circular saw tip saw according to the present invention.
【図8】同その要部の断面図FIG. 8 is a sectional view of the main part thereof.
【図9】本発明に係わる丸鋸チップソーのさらに他の実
施例を示す要部の平面図FIG. 9 is a plan view of a main part showing still another embodiment of the circular saw tip saw according to the present invention.
【図10】同その要部の断面図FIG. 10 is a sectional view of the main part thereof.
1 丸鋸チップソー 2 基盤 3 刃部 5 板厚部 6 孔 8 チップ 10 段部 11 固定部材 11a 突起 12 加熱コイル 13 高周波発生装置 14、15 溝 14a 開口縁 1 Circular Saw Chip Saw 2 Base 3 Blade 5 Plate Thickness 6 Hole 8 Chip 10 Step 11 Fixing Member 11a Protrusion 12 Heating Coil 13 High Frequency Generator 14, 15 Groove 14a Open Edge
Claims (5)
の基盤の外周部に固着された金属製の円環状の刃部と、
この刃部の外周縁にロウ付け固定されたチップとを具備
する丸鋸チップソーにおいて、前記刃部の内周縁に係合
部を設け、この係合部に、前記基盤を溶着させることに
より、基盤と刃部とを一体的に固着したことを特徴とす
る丸鋸チップソー。1. A disk-shaped base formed of resin, and a metal annular blade portion fixed to the outer periphery of the base,
In a circular saw tip saw including a tip brazed and fixed to the outer peripheral edge of the blade portion, an engaging portion is provided on the inner peripheral edge of the blade portion, and the base is welded to the engaging portion to form a base board. A circular saw tip saw with a blade and a blade integrally fixed.
ることを特徴とする請求項1記載の丸鋸チップソー。2. The circular saw tip saw according to claim 1, wherein the engaging portion is a hole penetrating in the front-back direction.
た溝であることを特徴とする請求項1記載の丸鋸チップ
ソー。3. The circular saw tip saw according to claim 1, wherein the engaging portion is a groove having a narrow width on the opening side.
部に、その内周縁に係合部を有する如く円環状に形成さ
れた金属製の刃部を当接させ、この当接部に加熱コイル
を近接配置し、該部分の刃部を高周波誘導加熱して、基
盤を前記係合部に溶着させることを特徴とする丸鋸チッ
プソーの製造方法。4. A disk-shaped base formed of resin is brought into contact with an outer peripheral portion of an annular metal blade portion having an engaging portion at its inner peripheral edge, and the contact portion is brought into contact with the outer peripheral portion. A method for manufacturing a circular saw tip saw, wherein heating coils are arranged in proximity to each other, and a blade portion of the portion is subjected to high-frequency induction heating to weld the base to the engaging portion.
部に刃部の一方の面を当接させた後、刃部の他方の面に
円環状の樹脂製の固定部材を当接させ、その後、刃部を
誘導加熱することを特徴とする請求項4記載の丸鋸チッ
プソーの製造方法。5. A step portion is formed on the outer peripheral edge of the base, and one surface of the blade portion is brought into contact with the step portion, and then an annular resin fixing member is attached to the other surface of the blade portion. The method for manufacturing a circular saw tip saw according to claim 4, wherein the blade portion is brought into contact with the blade portion and then the blade portion is induction-heated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9050494A JPH07276304A (en) | 1994-04-04 | 1994-04-04 | Tip saw of circular saw and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9050494A JPH07276304A (en) | 1994-04-04 | 1994-04-04 | Tip saw of circular saw and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH07276304A true JPH07276304A (en) | 1995-10-24 |
Family
ID=14000336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9050494A Pending JPH07276304A (en) | 1994-04-04 | 1994-04-04 | Tip saw of circular saw and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07276304A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU91502B1 (en) * | 2008-11-27 | 2010-05-28 | Finus S A H | Circular saw blade |
JP2020178104A (en) * | 2019-04-22 | 2020-10-29 | リンテック株式会社 | Temperature changing device for cutting means and temperature changing method for cutting means |
-
1994
- 1994-04-04 JP JP9050494A patent/JPH07276304A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU91502B1 (en) * | 2008-11-27 | 2010-05-28 | Finus S A H | Circular saw blade |
EP2191924A1 (en) * | 2008-11-27 | 2010-06-02 | Finus S.A.H. | Circular saw blade |
JP2020178104A (en) * | 2019-04-22 | 2020-10-29 | リンテック株式会社 | Temperature changing device for cutting means and temperature changing method for cutting means |
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