JPH0513513Y2 - - Google Patents

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Publication number
JPH0513513Y2
JPH0513513Y2 JP1988076780U JP7678088U JPH0513513Y2 JP H0513513 Y2 JPH0513513 Y2 JP H0513513Y2 JP 1988076780 U JP1988076780 U JP 1988076780U JP 7678088 U JP7678088 U JP 7678088U JP H0513513 Y2 JPH0513513 Y2 JP H0513513Y2
Authority
JP
Japan
Prior art keywords
blade
cutting
carbide
copper plate
disc
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.)
Expired - Lifetime
Application number
JP1988076780U
Other languages
Japanese (ja)
Other versions
JPH023394U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988076780U priority Critical patent/JPH0513513Y2/ja
Publication of JPH023394U publication Critical patent/JPH023394U/ja
Application granted granted Critical
Publication of JPH0513513Y2 publication Critical patent/JPH0513513Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】[Detailed explanation of the idea] 【産業上の利用分野】[Industrial application field]

本考案は円盤刃に関し、特に藺草の束、発泡ス
チロール、スポンジ等のような柔軟性を有し、切
断面積が広い素材を切断するのに適した円盤刃に
関する。
The present invention relates to a disc blade, and particularly to a disc blade suitable for cutting flexible materials such as bundles of straw, styrofoam, sponge, etc., and having a wide cutting area.

【従来技術】[Prior art]

例えば、藺草の束を切断する際には、外周縁に
一定の間隔を隔てて切断凸部を形成した回転刃で
切断した後、切り口をきれいにするために刃部が
ナイフ状に連続した円盤刃を使用して再度切断し
ている。 また、紙や、発泡スチロール等のように柔軟性
素材を切断する場合も、引つ掛かからないように
同様の円盤刃を使用している。 しかし、以前のこの種の円盤刃は一体物であつ
たために、円盤刃を変形させずに刃部に均一に焼
き入れをするのは困難であり、このため耐久性が
劣つていた。 また、藺草の束、発泡スチロール、スポンジ等
のような柔軟性を有し、切断面積が広い素材を切
断する場合は、切断中に円盤刃が摩擦熱で膨張し
て円盤刃全体が熱座屈による変形をし、振れを起
こすために回転速度を落として切断作業をしなけ
ればならず、切断能率が悪かつた。 ところで、実開昭52−64990号公報および実開
昭56−121513号公報には、円盤状の基板の外周
に、別に形成した刃体を取付けた構造の円盤刃が
提案されている。
For example, when cutting a bundle of rush grass, a rotary blade with cutting protrusions formed at regular intervals on the outer periphery is used to cut the bundle, and then a circular blade with a continuous knife-like blade is used to clean the cut. I am cutting it again using . Also, when cutting flexible materials such as paper and styrofoam, a similar disc blade is used to avoid snagging. However, because previous disk blades of this type were made of one piece, it was difficult to harden the blade portion uniformly without deforming the disk blade, resulting in poor durability. In addition, when cutting flexible materials with a wide cutting area, such as bundles of rush grass, Styrofoam, and sponge, the disc blade expands due to frictional heat during cutting, causing thermal buckling of the entire disc blade. Due to the deformation and runout, the cutting operation had to be performed at a reduced rotational speed, resulting in poor cutting efficiency. Incidentally, Japanese Utility Model Application Publication No. 52-64990 and Japanese Utility Model Application Publication No. 56-121513 propose a disk blade having a structure in which a separately formed blade body is attached to the outer periphery of a disk-shaped substrate.

【従来技術の課題点】[Problems with conventional technology]

けれども、上記各公報に記載された円盤刃で藺
草の束、発泡スチロール、スポンジ等のような柔
軟性を有し、切断面積が広い素材を切断する場合
は、次のような課題がある。 実開昭52−64990号公報記載の円盤刃は、ベー
スとなる円盤状のカツター本体に扇状の刃体を蝋
付けした構造であり、カツター本体にはスリツト
は形成されていない。 従つて、従来の回転刃と同様に切断中に摩擦熱
で熱膨張してカツター本体が変形をし、カツター
本体と刃体との熱膨張率の差に起因する残留応力
を十分に吸収することができず、カツター本体の
変形によつて接合用材料の割れが起こる。 また、摩擦熱で熱膨張してカツター本体が熱座
屈による変形をして振れを起こすために回転速度
を落として切断作業をしなければならず、切断能
率が悪い。 なお、明細書の記載によれば上記公報記載の円
盤刃はリード線の切断に適するものであり、藺草
の束、発泡スチロール、スポンジ等のような柔軟
性を有し、切断面積が広い素材を切断する作業に
は不向きであることが読み取れる。 実開昭56−121513号公報記載の円盤刃は、円盤
状の台金にスリツトが設けてあるが、刃体が環状
で一体物である。 このために、刃体が摩擦熱で熱膨張した場合カ
ツター本体と刃体との熱膨張率の差に起因する残
留応力を十分に吸収することができない。 ところで、いわゆる刃物は、鋸と包丁或は刃鎌
と鋸鎌に見られるように被切断物の種類及びその
切断効率、さらには切り口など切断結果の要求に
よつて使い分けされている。 藺草の束、発泡スチロール、スポンジ等のよう
な柔軟性を有し、切断面積が広い素材を切断する
場合、刃部分に凹凸があつたほうが切断効率は良
いが切り口が鋭利なナイフで切断したようにきれ
いにはならない。 反対に、刃部分に凹凸がないと切り口はきれい
であるが切断効率が悪く負荷がかかり、刃の寿命
が短くなるばかりかモーターなどの原動機の寿命
も短くなるという、二律背反の状態にある。
However, when using the disc blades described in the above-mentioned publications to cut flexible materials such as bundles of grass, styrofoam, sponge, etc., which have a wide cutting area, the following problems arise. The disc blade described in Japanese Utility Model Application Publication No. 52-64990 has a structure in which a fan-shaped blade body is brazed to a disc-shaped cutter body serving as a base, and no slit is formed in the cutter body. Therefore, like conventional rotary blades, the cutter body deforms due to thermal expansion due to frictional heat during cutting, and the residual stress caused by the difference in thermal expansion coefficient between the cutter body and the blade body can be sufficiently absorbed. The joint material is cracked due to deformation of the cutter body. In addition, the cutter body thermally expands due to frictional heat and deforms due to thermal buckling, causing runout, which requires cutting at a reduced rotational speed, resulting in poor cutting efficiency. According to the specification, the disk blade described in the above publication is suitable for cutting lead wires, and is suitable for cutting flexible materials with a wide cutting area, such as bundles of rush grass, styrofoam, sponge, etc. It can be seen that it is unsuitable for the work to be done. The disk blade described in Japanese Utility Model Application Publication No. 56-121513 has a disk-shaped base metal with a slit, but the blade body is annular and integral. For this reason, when the blade thermally expands due to frictional heat, residual stress caused by the difference in thermal expansion coefficient between the cutter body and the blade cannot be sufficiently absorbed. By the way, the so-called blades are used depending on the type of the object to be cut, the cutting efficiency thereof, and the requirements for the cutting result such as the cut edge, such as a saw and a kitchen knife, or a blade sickle and a saw sickle. When cutting materials that are flexible and have a wide cutting area, such as bundles of rush grass, Styrofoam, sponge, etc., it is better to have unevenness on the blade for better cutting efficiency, but the cutting edge will be similar to cutting with a sharp knife. It won't be pretty. On the other hand, if there are no irregularities on the blade, the cut will be clean, but the cutting efficiency will be poor and the load will be applied, which will not only shorten the life of the blade but also shorten the life of the motor and other prime movers.

【課題を解決するための手段】[Means to solve the problem]

上記課題を解決するために講じた手段は次のと
おりである。即ち、本考案は、 円盤状の台盤と、 この台盤の周縁から内方に向けてスリツトを設
けて非連続に形成してある複数の取着基部と、 この取着基部の外周部に接着してある環状の銅
板と、 この銅板の外周部に連続して接着してある複数
の超硬チツプと、 この超硬チツプ間の接合用材料の先端部に設け
てあり、接着後の前記超硬チツプの研磨により形
成された窪みと、 を備え、 前記超硬チツプ外縁は全体が実質的に円形状で
ある、 円盤刃である。 台盤の周縁から内方に向けて設けてあるスリツ
トは、その数や長さは、台盤や超硬チツプの大き
さ、或いはこれらの素材の膨張収縮率等各種条件
によつて適宜選択される。 スリツトは、非連続の取着基部を設けるための
もので、通常の細い間隙だけなく非連続の取着基
部を設けることができる各種幅及び形状の間隙を
も含む概念である。 取着基部と超硬チツプの間に銅板を使用するこ
とによつて、接合用材料の割れや円盤刃の変形等
が起こりにくくなる。これは取着基部と超硬チツ
プの熱膨張率の違いに起因する残留応力が、接合
用材料の吸収力と相まつて銅板で効率よく吸収さ
れるものと考えられる。 各超硬チツプ間の接着部分の接合用材料の先端
部の窪みは、例えば接合用材料に銀蝋を使用した
場合、銀蝋は超硬チツプよりはるかに柔らかいの
で、超硬チツプを研磨するときにその部分が余計
に研磨されて形成されるものである。
The measures taken to solve the above problems are as follows. That is, the present invention has a disc-shaped base plate, a plurality of attachment bases formed discontinuously by providing slits inward from the periphery of the base plate, and an outer peripheral portion of the attachment base. A bonded annular copper plate, a plurality of carbide chips continuously bonded to the outer periphery of the copper plate, and a bonding material provided between the carbide chips. a recess formed by polishing a carbide chip; and the outer edge of the carbide chip has a substantially circular shape as a whole, and is a disk blade. The number and length of the slits provided inward from the periphery of the base plate are selected as appropriate depending on various conditions such as the size of the base plate and carbide chips, or the expansion and contraction rate of these materials. Ru. A slit is used to provide a discontinuous attachment base, and the concept includes not only a normal narrow gap but also gaps of various widths and shapes in which a discontinuous attachment base can be provided. By using a copper plate between the attachment base and the carbide tip, cracking of the bonding material and deformation of the disk blade are less likely to occur. This is thought to be due to the fact that the residual stress caused by the difference in thermal expansion coefficient between the attachment base and the carbide chip is efficiently absorbed by the copper plate together with the absorption power of the bonding material. For example, when silver wax is used as the bonding material, silver wax is much softer than the carbide chips, so when polishing the carbide chips, This part is formed by extra polishing.

【実施例】【Example】

本考案を図面に示した実施例に基づき更に詳細
に説明する。 第1図は正面図、第2図はA部の拡大図、第3
図は−断面図である。 円盤状の台盤1には周縁2から中心に向けて複
数のスリツト3が設けてある。スリツト3によつ
てその間に非連続の取着基部4が設けてある。 この取着基部4外周には銀蝋5を介して環状の
銅板8が接着してある。更に銅板8の外周には同
じく銀蝋5を介して複数の超硬チツプ6が接着し
てある。また超硬チツプ6間も銀蝋5(棒銀等)
で接着してあり、超硬チツプ6の外縁部は全体が
実質的に円形になるように形成してある。 更に、超硬チツプ6間の銀蝋5の先端には、超
硬チツプ6を研磨するときにできた僅かな窪み7
が形成されている。 このように取着基部4と超硬チツプ6の間に比
較的柔らかい金属である銅板8を使用することに
よつて、取着基部4と超硬チツプ6の熱膨張率の
違いに起因する残留応力が、銀蝋5の吸収力と相
まつて効率よく吸収されるものと考えられる。 従つて銀蝋5部分や超硬チツプ6の割れ、ある
いは台盤1の変形等が起こりにくい。 また、超硬チツプ6間の銀蝋5の先端部に形成
された窪み7の作用によつて、回転切断時に僅か
な掛りが生じるために、ナイフ状の連続刃である
場合と比較して高効率の切断作業ができる。しか
も、切り口はナイフ状の連続刃を有する円盤刃と
遜色がなくきれいである。 なお、本考案は図示の実施例に限定されるもの
ではなく、実用新案登録請求の範囲の記載内にお
いて数々の変形が可能である。
The present invention will be explained in more detail based on embodiments shown in the drawings. Figure 1 is a front view, Figure 2 is an enlarged view of section A, and Figure 3 is a front view.
The figure is a cross-sectional view. A plurality of slits 3 are provided in a disc-shaped base plate 1 from a peripheral edge 2 toward the center. A discontinuous attachment base 4 is provided therebetween by the slit 3. An annular copper plate 8 is bonded to the outer periphery of the attachment base 4 with silver wax 5 interposed therebetween. Furthermore, a plurality of carbide chips 6 are bonded to the outer periphery of the copper plate 8 via silver wax 5 as well. Also, between 6 carbide tips and 5 pieces of silver wax (silver bar, etc.)
The outer edge of the carbide chip 6 is formed so that the entire outer edge is substantially circular. Furthermore, at the tip of the silver wax 5 between the carbide chips 6, there is a slight depression 7 formed when polishing the carbide chips 6.
is formed. By using the copper plate 8, which is a relatively soft metal, between the attachment base 4 and the carbide chip 6, it is possible to prevent the residual It is considered that the stress is efficiently absorbed together with the absorption power of the silver wax 5. Therefore, cracking of the silver wax 5 portion, the carbide chip 6, or deformation of the base plate 1 is less likely to occur. In addition, due to the effect of the depression 7 formed at the tip of the silver wax 5 between the carbide chips 6, a slight catch occurs during rotational cutting, so the cutting speed is higher than that of a knife-like continuous blade. Allows for efficient cutting work. Moreover, the cutting edge is as clean as that of a disc blade with a knife-like continuous blade. Note that the present invention is not limited to the illustrated embodiment, and many modifications can be made within the scope of the claims of the utility model registration.

【考案の効果】[Effect of the idea]

本考案は上記構成を有し、次の効果を生じる。 (a) 台盤と超硬チツプの間には環状の銅板が介在
してある。このため、円盤刃を高速回転させて
被切断物を切断しても、摩擦熱により加熱され
た台盤と超硬チツプの熱膨張率の差から生じる
ひずみはスリツトと接合用材料の他、銅板によ
つても効率よく吸収される。従つて、接合用材
料の割れや円盤刃の変形等は起こりにくい。 (b) 超硬チツプ間の接合用材料の先端部には窪み
が形成されているので、例えば藺草束の切断等
において回転切断時に僅かな掛りが生じ、ナイ
フ状の連続刃である場合と比較して高効率の切
断作業ができる。しかも、切り口はナイフ状の
連続刃を有する円盤刃と遜色がなくきれいであ
る。
The present invention has the above configuration and produces the following effects. (a) A circular copper plate is interposed between the base plate and the carbide chip. For this reason, even if the disc blade is rotated at high speed to cut the object, the strain caused by the difference in thermal expansion coefficient between the base plate and the carbide chip heated by frictional heat will be applied to the slit and the joining material as well as the copper plate. It is also efficiently absorbed by Therefore, cracking of the joining material and deformation of the disk blade are unlikely to occur. (b) Since a recess is formed at the tip of the joining material between the carbide tips, a slight catch occurs during rotary cutting, for example when cutting a bundle of strawberries, compared to a knife-like continuous blade. This allows for highly efficient cutting work. Moreover, the cutting edge is as clean as that of a disc blade with a knife-like continuous blade.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は正面図、第2図はA部の拡大図、第3
図は−断面図である。 1……台盤、2……周縁、3……スリツト、4
……取着基部、6……超硬チツプ、7……窪み、
8……銅板。
Figure 1 is a front view, Figure 2 is an enlarged view of section A, and Figure 3 is a front view.
The figure is a cross-sectional view. 1... Base plate, 2... Periphery, 3... Slit, 4
... Mounting base, 6... Carbide tip, 7... Recess,
8...Copper plate.

Claims (1)

【実用新案登録請求の範囲】 円盤状の台盤1と、 この台盤1の周縁2から内方に向けてスリツト
3を設けて非連続に形成してある複数の取着基部
4と、 この取着基部4の外周部に接着してある環状の
銅板8と、 この銅板8の外周部に連続して接着してある複
数の超硬チツプ6と、 この超硬チツプ6間の接合用材料の先端部に設
けてあり、接着後の前記超硬チツプ6の研磨によ
り形成された窪み7と、 を備え 前記超硬チツプ6外縁は全体が実質的に円形状
である、 円盤刃。
[Claims for Utility Model Registration] A disc-shaped base 1; a plurality of mounting bases 4 formed discontinuously by providing slits 3 inward from the periphery 2 of the base 1; An annular copper plate 8 bonded to the outer periphery of the attachment base 4; a plurality of carbide chips 6 bonded continuously to the outer periphery of the copper plate 8; and a bonding material between the carbide chips 6. a recess 7 provided at the tip of the carbide chip 6 and formed by polishing the carbide chip 6 after adhesion; and an outer edge of the carbide chip 6 having a substantially circular shape as a whole.
JP1988076780U 1988-06-08 1988-06-08 Expired - Lifetime JPH0513513Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988076780U JPH0513513Y2 (en) 1988-06-08 1988-06-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988076780U JPH0513513Y2 (en) 1988-06-08 1988-06-08

Publications (2)

Publication Number Publication Date
JPH023394U JPH023394U (en) 1990-01-10
JPH0513513Y2 true JPH0513513Y2 (en) 1993-04-09

Family

ID=31301790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988076780U Expired - Lifetime JPH0513513Y2 (en) 1988-06-08 1988-06-08

Country Status (1)

Country Link
JP (1) JPH0513513Y2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5264990U (en) * 1975-11-10 1977-05-13
JPS56121513U (en) * 1980-02-12 1981-09-16

Also Published As

Publication number Publication date
JPH023394U (en) 1990-01-10

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