JPH07171713A - Low noise type circular saw blade - Google Patents
Low noise type circular saw bladeInfo
- Publication number
- JPH07171713A JPH07171713A JP27722994A JP27722994A JPH07171713A JP H07171713 A JPH07171713 A JP H07171713A JP 27722994 A JP27722994 A JP 27722994A JP 27722994 A JP27722994 A JP 27722994A JP H07171713 A JPH07171713 A JP H07171713A
- Authority
- JP
- Japan
- Prior art keywords
- saw blade
- resin layer
- rotary saw
- circular saw
- low noise
- 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
Landscapes
- Sawing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼材、木材、石材、コ
ンクリート、アスファルト、煉瓦、タイル等の切断用の
低騒音回転鋸刃に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low noise rotary saw blade for cutting steel, wood, stone, concrete, asphalt, bricks, tiles and the like.
【０００２】[0002]
【従来の技術】近年、工場や土木建築作業現場等におい
て、材料の加工に伴う騒音が作業従事者や近隣に与える
影響として無視できなくなってきている。特に、鋼材、
木材、石材、コンクリート、アスファルト、煉瓦、タイ
ル等の切断に伴って発生する騒音は音圧レベルが高く、
長期に渡って作業に従事した場合、聴力障害を発生する
などの問題がある。しかし、回転鋸刃による騒音の発生
原因は、高速回転している鋸刃と被切断物の摩擦によっ
て鋸刃および被切断物が振動することであるので、回転
鋸刃本来の目的からして、従来の鋸刃では切断時に鋸刃
から発生する音を低減することは困難であった。2. Description of the Related Art In recent years, in factories and civil engineering work sites, noise accompanying the processing of materials has become an ignorable influence on workers and neighbors. Especially steel materials,
The noise level generated by cutting wood, stone, concrete, asphalt, bricks, tiles, etc. has a high sound pressure level,
When working for a long period of time, there are problems such as hearing loss. However, the cause of noise from the rotating saw blade is that the saw blade and the object to be cut vibrate due to friction between the saw blade and the object to be cut that are rotating at high speed, so from the original purpose of the rotating saw blade, It is difficult for the conventional saw blade to reduce the sound generated from the saw blade during cutting.
【０００３】切断時に鋸刃および被切断物から発生する
音を低減するために、実公平２−７０１５号公報には、
台金を複数枚重ねて部分溶接することにより台金内面間
の振動を減衰させることが開示されており、実公昭５８
−４８０２０号公報には、鋸刃の一部に粘弾性樹脂層と
拘束板を貼り付け振動減衰させることが開示されている
る。In order to reduce the noise generated from the saw blade and the object to be cut during cutting, Japanese Utility Model Publication No. 2-7015 discloses
It is disclosed that a plurality of base metals are overlapped and partially welded to reduce vibration between inner surfaces of the base metal.
JP-A-48020 discloses that a viscoelastic resin layer and a constraining plate are attached to a part of a saw blade to dampen vibration.
【０００４】[0004]
【発明が解決しようとする課題】ところで、従来の低騒
音回転鋸刃は金属接触による摩擦あるいは鋸刃の一部に
対する制振処理であったため、期待されるだけの低騒音
化はできなかった。また、従来の低騒音回転鋸刃は多数
のスポット溶接を必要としたり、表裏別々に制振樹脂、
拘束板を貼らなければならないなど、製造工程が複雑に
なっていた。By the way, the conventional low-noise rotary saw blade was not able to achieve the expected noise reduction because it was subjected to friction due to metal contact or vibration control to a part of the saw blade. In addition, the conventional low-noise rotary saw blade requires a large number of spot welds, and the front and back of the
The manufacturing process was complicated, such as the need to attach a restraint plate.
【０００５】本発明の目的は、切断時に鋸刃および被切
断物から発生する音を低減させることができ、しかも製
造工程の簡略化が可能な低騒音回転鋸刃を提供すること
である。An object of the present invention is to provide a low noise rotary saw blade capable of reducing the noise generated from the saw blade and the object to be cut at the time of cutting and simplifying the manufacturing process.
【０００６】[0006]
【課題を解決するための手段】本発明は、回転鋸刃を形
成する台金が２枚の金属拘束板とその拘束板によって拘
束される粘弾性樹脂層からなり、硬質チップまたはダイ
ヤモンドチップが直接台金に接合されていることを特徴
とする低騒音回転鋸刃である。台金の硬さがＨＲｃ３０
以上であること、チップがロウ付、レーザー溶接、電気
抵抗溶接、摩擦接合のいずれかで台金に接合されている
こと、また、粘弾性樹脂層の損失正接（ｔａｎδ）が
０．０１以上であること、粘弾性樹脂層の厚みが０．２
ｍｍ以下であることは好ましい。また、粘弾性樹脂層が
熱硬化性樹脂層であること、粘弾性樹脂層がポリエステ
ル系樹脂層またはポリウレタン系樹脂層であることは好
ましい。According to the present invention, a base metal forming a rotary saw blade comprises two metal constraining plates and a viscoelastic resin layer constrained by the constraining plates. It is a low-noise rotary saw blade that is joined to a base metal. The hardness of the base metal is HRc30
That is, the tip is bonded to the base metal by brazing, laser welding, electric resistance welding, or friction welding, and the loss tangent (tan δ) of the viscoelastic resin layer is 0.01 or more. The thickness of the viscoelastic resin layer is 0.2
It is preferably less than or equal to mm. Further, it is preferable that the viscoelastic resin layer is a thermosetting resin layer and the viscoelastic resin layer is a polyester resin layer or a polyurethane resin layer.
【０００７】[0007]
【作用】図１および図２は、本発明の一実施例の正面断
面図および側面図である。材料切断中の回転鋸刃は複雑
な振動モードを有しており、単板の台金のみで振動を抑
制することは困難であるので、本発明の回転鋸刃は、台
金１を金属拘束板２とその中間の粘弾性樹脂層３とで構
成し、材料切断時に発生する台金の振動を中間の樹脂層
３の歪みにより発生する粘性抵抗によって減衰させるこ
とにした。1 and 2 are a front sectional view and a side view of an embodiment of the present invention. Since the rotary saw blade during the material cutting has a complicated vibration mode, and it is difficult to suppress the vibration with only the single plate base metal. The plate 2 and the viscoelastic resin layer 3 in the middle of the plate 2 are used to attenuate the vibration of the base metal generated when cutting the material by viscous resistance generated by the strain of the intermediate resin layer 3.
【０００８】台金１および硬質チップ４、ダイヤモンド
チップの材質、形状およびチップ数等は被切断材の仕様
によって種々選択することができ、特に限定されるもの
ではない。なお、硬質チップ４は台金１の全周に接合さ
れているが、図２では一部のみを示している。The material, shape, number of chips, etc. of the base metal 1, the hard tip 4, and the diamond tip can be variously selected according to the specifications of the material to be cut, and are not particularly limited. Although the hard chip 4 is bonded to the entire circumference of the base metal 1, only a part thereof is shown in FIG.
【０００９】中間の粘弾性樹脂層には、例えば、非晶性
ポリエステル、非晶性ポリアミド、ポリイミド、ポリウ
レタン、ポリウレタンウレア、ポリウレア、アクリル系
樹脂、エポキシ系樹脂、酢酸ビニル系樹脂、非晶性ポリ
オレフィン系樹脂、あるいは、各種樹脂をブレンドした
ものや、共重合体等を採用することができるが、高温時
の接着性および長期の耐久力を考慮して多官能のイソシ
アネートやエポキシ樹脂等の架橋剤を用い、熱硬化性樹
脂とするのが好ましい。ポリエステル系樹脂およびポリ
ウレタン系樹脂は金属との密着性に優れ、かつ良好な制
振性を有するので特に好ましい。For the intermediate viscoelastic resin layer, for example, amorphous polyester, amorphous polyamide, polyimide, polyurethane, polyurethane urea, polyurea, acrylic resin, epoxy resin, vinyl acetate resin, amorphous polyolefin. Resins, blends of various resins, copolymers, etc. can be adopted, but in consideration of adhesiveness at high temperature and long-term durability, cross-linking agents such as polyfunctional isocyanates and epoxy resins. It is preferable to use a thermosetting resin. Polyester-based resins and polyurethane-based resins are particularly preferable because they have excellent adhesion to metals and good vibration damping properties.
【００１０】台金とチップとを粘弾性樹脂だけで接着接
合しても切断に耐え得る強度は確保されるが、多数回の
切断によって刃面から台金の剥離が発生し、切断不良や
回転ムラの原因となるので、チップをロウ付、レーザー
溶接、電気抵抗溶接、摩擦接合等で台金に接合し、粘弾
性樹脂の拘束板として機能する金属拘束板の刃面近傍の
接合強度を高めることが最も好ましい。また、２枚の金
属拘束板間を点溶接により多点接合して台金の剛性を増
してもよい。点溶接を容易にするため粘弾性樹脂中にス
テンレス粉、ニッケル粉、鉄粉、クロム粉等の導電性の
ある金属粉を添加してもよい。Even if the base metal and the chip are adhesively bonded only by viscoelastic resin, the strength capable of withstanding cutting is secured, but the base metal is peeled off from the blade surface by a large number of cuttings, resulting in defective cutting and rotation. Since it causes unevenness, the tip is joined to the base metal by brazing, laser welding, electric resistance welding, friction joining, etc., and the joint strength near the blade surface of the metal restraint plate that functions as a viscoelastic resin restraint plate is increased. Is most preferred. In addition, the rigidity of the base metal may be increased by joining the two metal constraining plates at multiple points by spot welding. In order to facilitate spot welding, conductive metal powder such as stainless powder, nickel powder, iron powder, and chrome powder may be added to the viscoelastic resin.
【００１１】台金の硬さはＨＲｃ３０以上でなければな
らない。柔らかすぎると切削時の変形やブレの原因とな
り、好ましくない。The hardness of the base metal must be HRc 30 or more. If it is too soft, it may cause deformation or blurring during cutting, which is not preferable.
【００１２】材料切断時に発生する騒音を低減するため
には、２枚の金属拘束板を接合する粘弾性樹脂層の損失
正接（ｔａｎδ）が０．０１以上なければならない。損
失正接が０．０１未満では騒音低減効果が薄い。In order to reduce the noise generated when cutting the material, the loss tangent (tan δ) of the viscoelastic resin layer joining the two metal constraining plates must be 0.01 or more. If the loss tangent is less than 0.01, the noise reduction effect is small.
【００１３】２枚の金属拘束板を接合する粘弾性樹脂層
の厚みは０．２ｍｍ以下とすることが好ましい。樹脂層
の厚みが０．２ｍｍを越えるとチップのロウ付けを行う
際にロウが台金内部にまで侵入してしまうため、台金と
チップ間のロウのまわりが悪くなるので好ましくない。
また、刃面の台金剥離等の損傷を被りやすくなり、さら
に、鋸刃取付け軸部で鋸刃取付け時の締め付けトルクが
回転中に変動しやすくなり鋸刃がブレやすくなるので、
粘弾性樹脂層の厚みが０．２ｍｍを越えることは好まし
くない。The thickness of the viscoelastic resin layer for joining the two metal constraining plates is preferably 0.2 mm or less. If the thickness of the resin layer exceeds 0.2 mm, the solder will penetrate into the inside of the base metal when the chips are brazed, so that the circumference of the solder between the base metal and the chips is deteriorated, which is not preferable.
In addition, it is easy to suffer damage such as peeling of the base metal of the blade surface, and the tightening torque at the time of attaching the saw blade on the saw blade mounting shaft easily fluctuates during rotation, so the saw blade easily shakes,
It is not preferable that the thickness of the viscoelastic resin layer exceeds 0.2 mm.
【００１４】粘弾性樹脂層には、高温時や長期の剥離耐
久性に優れる点で熱硬化性樹脂を用いることが好まし
く、特にポリエステル系樹脂およびポリウレタン系樹脂
が金属との密着性に優れ、かつ良好な制振性を有するの
で好ましい。For the viscoelastic resin layer, it is preferable to use a thermosetting resin from the viewpoint of excellent durability against peeling at high temperature and for a long period of time. Particularly, polyester resin and polyurethane resin have excellent adhesion to metal and It is preferable because it has good vibration damping properties.
【００１５】金属拘束板と粘弾性樹脂層との接着強度を
向上させるため、金属拘束板の接着面に表面改質処理を
施してもよい。表面改質処理としては、クロメート処
理、シラン系カップリング剤処理、チタネート系カップ
リング剤処理等が挙げられる。また、同様に粘弾性樹脂
層中に無機粉末成分を添加してもよい。無機粉末として
は広範囲のものが採用可能であるが、特に炭酸カルシウ
ム、タルク、シリカ、カーボンブラック、アルミナ、酸
化チタン、亜鉛華、黒鉛、マイカ等が減衰特性に及ぼす
影響が少ないので好ましい。In order to improve the adhesive strength between the metal constraining plate and the viscoelastic resin layer, the bonding surface of the metal constraining plate may be subjected to a surface modification treatment. Examples of the surface modification treatment include chromate treatment, silane coupling agent treatment, and titanate coupling agent treatment. Further, similarly, an inorganic powder component may be added to the viscoelastic resin layer. Although a wide range of inorganic powders can be used, calcium carbonate, talc, silica, carbon black, alumina, titanium oxide, zinc white, graphite, mica and the like are preferable because they have little influence on the damping characteristics.
【００１６】２枚の金属拘束板と粘弾性樹脂層の積層方
法は、制振性、接着性、打ち抜き型が不要である点等か
ら溶剤希釈した樹脂を金属拘束板に塗布する方法が好ま
しいが、円盤状にしたホットメルト型のフィルム樹脂を
ホットプレス加工する方法でも良い。溶剤希釈した樹脂
を用いて粘弾性樹脂層を積層する方法としては、溶剤希
釈した粘弾性樹脂を洗浄脱脂した金属拘束板上にスクリ
ーン印刷、刷毛塗り、ロールコーティングなどの方法で
塗布し、溶剤を乾燥除去した後、ホットプレス等で加熱
圧着する方法が作業の簡便性、樹脂歩留り等の点で好ま
しい。樹脂の塗布には、特に樹脂厚精度、作業性、装置
が簡便である点で、スクリーン印刷用製版を用いるのが
好適である。As a method for laminating the two metal constraining plates and the viscoelastic resin layer, it is preferable to apply a solvent-diluted resin to the metal constraining plates in terms of damping properties, adhesiveness, and the need for a punching die. Alternatively, a method of hot pressing a disc-shaped hot melt type film resin may be used. As a method for laminating a viscoelastic resin layer using a solvent diluted resin, a solvent diluted viscoelastic resin is applied by a method such as screen printing, brush coating or roll coating on a degreased metal constraining plate, and a solvent is applied. After being dried and removed, a method of hot pressing with a hot press or the like is preferable in terms of workability, resin yield, and the like. For resin coating, it is preferable to use a screen printing plate-making plate because of its precision in resin thickness, workability, and simple apparatus.
【００１７】[0017]
【実施例】表１に示すように、本発明例の回転鋸刃は、
金属拘束板の片方の面に溶剤希釈したポリエステル系熱
硬化性樹脂をバーコーターを用いて塗布した後、１６０
℃の乾燥炉で１分間乾燥させて溶剤を除去し、冷却後も
う一枚の金属拘束板とあわせて１６０℃のホットプレス
によって加熱圧着することによって作製した。使用した
チップソーカッターは無負荷時回転数が１５００ｒｐｍ
であり、テストしたチップソーのサイズおよびチップ数
は、外径３０８ｍｍ、チップ数６０と、外径１８０ｍ
ｍ、チップ数３６の２種類である。比較例としては、単
板のチップソーと、２枚の台金を点溶接した従来型の低
騒音鋸刃およびホットメルト型のフィルム樹脂を２枚の
台金間に積層したものを用いた。EXAMPLES As shown in Table 1, the rotary saw blade of the present invention,
After applying a solvent-diluted polyester thermosetting resin to one surface of the metal constraining plate using a bar coater, 160
A solvent was removed by drying in a drying oven at a temperature of 1 ° C. for 1 minute, and after cooling, another metal constraining plate was combined and heat-pressed by a 160 ° C. hot press. The tip saw cutter used has a rotation speed of 1500 rpm when no load is applied.
The size and number of chips tested were 308 mm in outer diameter, 60 in number, and 180 m in outer diameter.
m and 36 chips. As a comparative example, a single-chip tipped saw, a conventional low-noise saw blade in which two base metals were spot-welded, and a hot-melt type film resin were laminated between the two base metals.
【００１８】[0018]
【表１】 [Table 1]
【００１９】試験は、Ｌ型鋼製アングル（６ｔ×５０ｗ
×５０ｈｍｍ）、およびＣ型鋼製チャンネル（２．３ｔ
×１００ｗ×５０ｈｍｍ）を切断した際の騒音を騒音計
によって測定することにより行った。騒音の測定条件
は、１２ｍ×１０ｍの室内中央でチップソーカッターを
コンクリート床上に置き、騒音計を床上５０ｃｍのとこ
ろに鋸刃面に平行に１ｍ離して配置し、鋼材切断時の騒
音を測定した。騒音計はリオン社ＮＬ−０１Ａを用い、
Ａ特性フィルターをかけた値で評価した。また、耐久性
は、Ｌ型鋼製アングルを３０００回切断した後の鋸刃周
辺部を目視観察することによって評価した。鋸刃回転時
のブレは、無負荷回転時の台金平面の面外方向へのブレ
を目視判定した。結果を表２に示す。The test was carried out using an L-shaped steel angle (6t × 50w
X 50hmm), and C-shaped steel channel (2.3t
It was performed by measuring the noise when cutting (× 100 w × 50 hmm) with a sound level meter. The noise measurement conditions were such that a tip saw cutter was placed on a concrete floor at the center of a room of 12 m × 10 m, and a noise meter was placed at a distance of 50 cm above the floor and parallel to the saw blade surface 1 m apart, and the noise at the time of cutting the steel material was measured. As the sound level meter, NL-01A manufactured by Rion Co., Ltd. is used.
It was evaluated by the value after the A characteristic filter was applied. Further, the durability was evaluated by visually observing the peripheral portion of the saw blade after cutting the L-shaped steel angle 3000 times. Regarding the blurring during rotation of the saw blade, the blurring in the out-of-plane direction of the base metal plane during unloaded rotation was visually determined. The results are shown in Table 2.
【００２０】[0020]
【表２】 [Table 2]
【００２１】本発明例１〜６は、比較例７の普通回転鋸
刃に比べて著しい騒音低減効果が認められた。また、従
来の低騒音回転鋸刃である比較例８、９に比べても騒音
低減効果が高かった。In Examples 1 to 6 of the present invention, a remarkable noise reduction effect was recognized as compared with the ordinary rotary saw blade of Comparative Example 7. Further, the noise reduction effect was higher than that of Comparative Examples 8 and 9 which are conventional low-noise rotary saw blades.
【００２２】また、本発明例の低騒音回転鋸刃は、耐久
性、回転ブレについても１枚台金の普通回転鋸刃と同等
であり、実用上問題ない高品位のものが得られた。Further, the low-noise rotary saw blade of the present invention is equivalent in durability and rotational blur to a normal rotary saw blade of a single metal, and a high-quality one having no practical problem was obtained.
【００２３】樹脂積層作業についても問題なく、樹脂塗
布厚も均一で接着性も良好であり、かつ、短時間で作業
を完了することができた。There was no problem in the resin laminating work, the resin coating thickness was uniform, the adhesion was good, and the work could be completed in a short time.
【００２４】比較例１０は台金の硬度が低い例である
が、台金が柔らかくなると回転時のブレが大きくなり、
チップが破損しやすくなる傾向があった。Comparative Example 10 is an example in which the hardness of the base metal is low, but when the base metal becomes soft, the blurring during rotation increases,
The chips tended to break easily.
【００２５】比較例１１は樹脂の損失正接が０．０１未
満の例であるが、騒音低減効果は認められるが、従来の
低騒音回転鋸刃のレベルを越えるものではない。Comparative Example 11 is an example in which the loss tangent of the resin is less than 0.01, and although the noise reduction effect is recognized, it does not exceed the level of the conventional low noise rotary saw blade.
【００２６】比較例１２は樹脂層の厚みが０．２ｍｍ超
の例である。使用初期の騒音低減効果は高いが、長期使
用ではチップが欠落するなど耐久性の悪化をまねきやす
く、同時に回転ムラが発生し、騒音も高くなった。チッ
プが欠落しやすい原因としては、金属拘束板間の隙間が
大きいため、ロウ付け時にロウが隙間内に逃げてしま
い、チップと台金の接合が十分でないことが考えられ
る。また、使用初期においても鋸刃回転装置の起動直後
の回転ブレが大きく、安定するまで時間を要した。Comparative Example 12 is an example in which the thickness of the resin layer exceeds 0.2 mm. Although the noise reduction effect at the beginning of use is high, the durability is apt to deteriorate with long-term use such as chipping, and at the same time uneven rotation occurs and noise is also increased. It is conceivable that the reason why the chip is likely to be missing is that the gap between the metal constraining plates is large, so that the solder escapes into the gap during brazing, and the bonding between the chip and the base metal is not sufficient. Further, even in the initial stage of use, the rotational shake immediately after the saw blade rotating device was started was large, and it took time to stabilize.
【００２７】[0027]
【発明の効果】本発明の回転鋸刃は鋼材切断時の騒音発
生を著しく抑制することを可能とする。また、回転鋸刃
としての耐久性、回転安定性においても従来の普通回転
鋸刃と同等の性能を有している。よって、本発明の低騒
音回転鋸刃は、材料切断の効率を落とすことなく騒音発
生を抑制し得る極めて有用な回転鋸刃である。The rotary saw blade of the present invention makes it possible to remarkably suppress the generation of noise when cutting a steel material. Further, it has the same performance as a conventional ordinary rotary saw blade in terms of durability and rotation stability as a rotary saw blade. Therefore, the low-noise rotary saw blade of the present invention is an extremely useful rotary saw blade capable of suppressing noise generation without reducing the efficiency of material cutting.
【図１】本発明の回転鋸刃の実施例の正面断面図であ
る。FIG. 1 is a front sectional view of an embodiment of a rotary saw blade of the present invention.
【図２】本発明の回転鋸刃の実施例の側面図である。FIG. 2 is a side view of an embodiment of the rotary saw blade of the present invention.
１ 台金 ２ 金属拘束板 ３ 粘弾性樹脂層 ４ 硬質チップ 1 base metal 2 metal restraint plate 3 viscoelastic resin layer 4 hard chip
───────────────────────────────────────────────────── フロントページの続き (72)発明者 奥村 信義 大阪府大阪市北区中之島３−２−４ 新日 本製鐵株式会社大阪支店内 (72)発明者 菅原 克俊 大阪府大阪市北区中之島３−２−４ 新日 本製鐵株式会社大阪支店内 (72)発明者 山口 國雄 兵庫県小野市樫山町1475−132 山口金属 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Nobuyoshi Okumura 3-2-4 Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture Nippon Steel Corporation Osaka Branch (72) Inventor, Katsutoshi Sugawara Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture 3-2-4 Nippon Steel Corporation Osaka Branch (72) Inventor Kunio Yamaguchi 1475-132 Kashiyamacho, Ono City, Hyogo Prefecture Yamaguchi Metal Co., Ltd.
Claims (7)
束板とその拘束板によって拘束される粘弾性樹脂層から
なり、硬質チップまたはダイヤモンドチップが直接台金
に接合されていることを特徴とする低騒音回転鋸刃。1. A base metal forming a rotary saw blade is composed of two metal constraining plates and a viscoelastic resin layer constrained by the constraining plates, and hard chips or diamond chips are directly bonded to the base metal. Low-noise rotary saw blade characterized by.
抗溶接、摩擦接合のいずれかで台金に接合されているこ
とを特徴とする請求項１記載の低騒音回転鋸刃。2. The low noise rotary saw blade according to claim 1, wherein the tip is joined to the base metal by any one of brazing, laser welding, electric resistance welding and friction welding.
を特徴とする請求項１または２記載の低騒音回転鋸刃。3. The low-noise rotary saw blade according to claim 1, wherein the base metal has a hardness of HRc 30 or more.
０．０１以上であることを特徴とする請求項１〜３のい
ずれか記載の低騒音回転鋸刃。4. The low noise rotary saw blade according to claim 1, wherein the loss tangent (tan δ) of the viscoelastic resin layer is 0.01 or more.
あることを特徴とする請求項１〜４のいずれか記載の低
騒音回転鋸刃。5. The low-noise rotary saw blade according to claim 1, wherein the viscoelastic resin layer has a thickness of 0.2 mm or less.
とを特徴とする請求項１〜５のいずれか記載の低騒音回
転鋸刃。6. The low noise rotary saw blade according to claim 1, wherein the viscoelastic resin layer is a thermosetting resin layer.
たはポリウレタン系樹脂層であることを特徴とする請求
項１〜６のいずれか記載の低騒音回転鋸刃。7. The low noise rotary saw blade according to claim 1, wherein the viscoelastic resin layer is a polyester resin layer or a polyurethane resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27722994A JPH07171713A (en) | 1993-10-27 | 1994-10-18 | Low noise type circular saw blade |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5-289760 | 1993-10-27 | ||
| JP28976093 | 1993-10-27 | ||
| JP27722994A JPH07171713A (en) | 1993-10-27 | 1994-10-18 | Low noise type circular saw blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07171713A true JPH07171713A (en) | 1995-07-11 |
Family
ID=26552306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27722994A Pending JPH07171713A (en) | 1993-10-27 | 1994-10-18 | Low noise type circular saw blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07171713A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010029021A (en) * | 1999-09-28 | 2001-04-06 | 김세광 | Adhesive sheet for noise and shock absorption and saw blade making use therof and manufacturing methods therefor |
| EP1095750A1 (en) * | 1999-10-29 | 2001-05-02 | Veronesi S.r.l. | An improved tool for cutting stone blocks or the like and a process for obtaining the tool |
| KR100311260B1 (en) * | 1998-08-25 | 2001-12-17 | 이종구 | Low noise circular saw structure |
-
1994
- 1994-10-18 JP JP27722994A patent/JPH07171713A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100311260B1 (en) * | 1998-08-25 | 2001-12-17 | 이종구 | Low noise circular saw structure |
| KR20010029021A (en) * | 1999-09-28 | 2001-04-06 | 김세광 | Adhesive sheet for noise and shock absorption and saw blade making use therof and manufacturing methods therefor |
| EP1095750A1 (en) * | 1999-10-29 | 2001-05-02 | Veronesi S.r.l. | An improved tool for cutting stone blocks or the like and a process for obtaining the tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6526959B1 (en) | Adhesive sheet for noise and shock absorption, and saw blade making use of it, and manufacturing methods therefor | |
| WO2011078139A1 (en) | Rotary grinding tool and method of manufacturing same | |
| JPH07171713A (en) | Low noise type circular saw blade | |
| JPH08126912A (en) | Manufacture of low noise and low vibration type rotary saw blade | |
| JP2007276066A (en) | Saw blade | |
| JP2009233830A (en) | Cutter | |
| CN104589226B (en) | Soldering super hard abrasive band saw and preparation method thereof | |
| JP2509290Y2 (en) | Plate-shaped tool body consisting of two-layer structure | |
| JPH02311260A (en) | Disc type cutting blade | |
| JP3150904B2 (en) | Cutting blade and manufacturing method thereof | |
| JPS59107860A (en) | Disk for diamond cutter and manufacturing method thereof | |
| JP3201190U (en) | Rotating cutting blade | |
| JP3010034U (en) | Diamond saw blade | |
| JP3203152B2 (en) | Manufacturing method of diamond cup wheel | |
| JP4119617B2 (en) | Backing material for single-sided submerged arc welding | |
| JP3410438B2 (en) | Super abrasive wheel for high speed grinding | |
| JP3165649B2 (en) | Cutting whetstone | |
| JPS6249857B2 (en) | ||
| WO1999061204A1 (en) | Vibration damping sheet for cutting disks | |
| JPH0624824U (en) | Circular saw | |
| JP2838267B2 (en) | Dissimilar material joining structure and method | |
| JPH02103101A (en) | Circular saw | |
| KR101404226B1 (en) | Silent cutting wheel and manufacturing method thereof | |
| JP2648864B2 (en) | Composite metal plate with excellent vibration damping and heat resistance | |
| JP3299490B2 (en) | Superabrasive blade and method of manufacturing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19991214 |