JP3241751B2 - Sheet cutting equipment - Google Patents

Sheet cutting equipment

Info

Publication number
JP3241751B2
JP3241751B2 JP16538191A JP16538191A JP3241751B2 JP 3241751 B2 JP3241751 B2 JP 3241751B2 JP 16538191 A JP16538191 A JP 16538191A JP 16538191 A JP16538191 A JP 16538191A JP 3241751 B2 JP3241751 B2 JP 3241751B2
Authority
JP
Japan
Prior art keywords
shaft
movable blade
blade
extrusion
support
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 - Fee Related
Application number
JP16538191A
Other languages
Japanese (ja)
Other versions
JPH058195A (en
Inventor
雅人 芦田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Metals Ltd
Original Assignee
Hitachi Metals Ltd
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 by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP16538191A priority Critical patent/JP3241751B2/en
Publication of JPH058195A publication Critical patent/JPH058195A/en
Application granted granted Critical
Publication of JP3241751B2 publication Critical patent/JP3241751B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、ファクシミリやプリン
タなどの事務用機器に内装されて、主として紙の切断用
として用いられるシート切断装置に用いる可動刃の構造
に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a movable blade used in a sheet cutting apparatus which is installed in office equipment such as a facsimile or a printer and is mainly used for cutting paper.

【0002】[0002]

【従来の技術】従来のシート切断装置においては、可動
刃支持板に軸支するためには、普通鋼やステンレス鋼等
から段付に加工した支持軸を接着やカシメ等によって可
動刃や固定刃の端面に固着した後、支持板に設けられた
軸穴を貫通して嵌入し、支持する方法が多用されてい
る。また、装置の全長よりも長尺の軸を、可動刃や固定
刃に設けられた軸穴を貫通させ、軸の長手方向の移動を
止め輪等で固定する方法もよく知られている。また、回
動部材の取付機構として、特開昭61−135772号
公報に開示されたものは、軸承部の透孔に、先端に爪を
有し、弾性変形が可能な突起を設けた部品を嵌合してこ
の部品の突起部に回転部材を嵌入し、弾性と爪により回
動部材を保持するものである。
2. Description of the Related Art In a conventional sheet cutting apparatus, in order to support a movable blade support plate, a movable shaft or a fixed blade is formed by bonding or caulking a stepped support shaft made of ordinary steel or stainless steel. After being fixed to the end face of the support plate, a method of fitting the support through a shaft hole provided in the support plate and supporting it is often used. It is also well known that a shaft longer than the entire length of the device is made to pass through a shaft hole provided in a movable blade or a fixed blade, and the movement of the shaft in the longitudinal direction is fixed by a retaining ring or the like. Japanese Patent Application Laid-Open No. 61-135772 discloses a rotating member mounting mechanism which includes a through hole in a bearing portion, a claw at a tip, and a projection provided with elastic deformation. The rotating member is fitted into the projection of the component by fitting, and the rotating member is held by elasticity and claws.

【0003】[0003]

【発明が解決しようとする課題】可動刃の端面に固着す
る支持軸は、主として普通鋼やステンレス鋼が、主とし
て旋削等の機械加工によって製作されるが、普通鋼は錆
が発生し易いので、錆発生を抑制したい場合には、ステ
ンレス鋼を使用する。しかし、ステンレス鋼は、材質的
に高価なうえに、被加工性が劣るので価格的に不利であ
る。さらに、支持軸と別々に製作した可動刃の軸穴に支
持軸を挿入したり、接着やかしめ等の方法で接合する
と、芯ずれが発生し切断装置としての精度上の不具合が
生ずるという問題点もある。切断装置の全長よりも長尺
の支持軸を用いる方法は、可動刃に設けた穴と支持板に
設けた穴と少なくとも3つの穴を貫通させなければなら
ないので、組立作業が煩雑で精度上も不利で、部品点数
も多いという問題点がある。その結果、コスト高を招
き、価格的にも高くなる。前述した特開昭61−135
772号公報に開示された「回動部材の取付機構」は、
軸承部の透孔に嵌合する突起と爪を有する部品が複雑な
形状であるため製造コストが高く、また形状的にシート
の切断装置のような極く軽度であっても負荷を受ける用
途に用いるには強度的な不安がある。本発明は、上記の
問題点を解消し、組立作業が簡単で部品点数が少なく、
そのために軽量かつ安価で高精度の切断装置用可動刃を
提供することを目的とする。
The support shaft fixed to the end face of the movable blade is mainly made of ordinary steel or stainless steel, mainly by machining such as turning. However, ordinary steel is susceptible to rust. If you want to suppress rust, use stainless steel. However, stainless steel is disadvantageous in price because it is expensive in material and has poor workability. Furthermore, if the support shaft is inserted into the shaft hole of the movable blade manufactured separately from the support shaft, or if it is joined by a method such as bonding or caulking, misalignment will occur, causing a problem in accuracy as a cutting device. There is also. In the method using a support shaft that is longer than the entire length of the cutting device, at least three holes, that is, a hole provided in the movable blade and a hole provided in the support plate, must be penetrated. It is disadvantageous and has a problem that the number of parts is large. As a result, the cost is increased and the price is increased. JP-A-61-135 described above.
No. 772 discloses a "rotating member mounting mechanism".
The parts with protrusions and claws that fit into the through holes in the bearings are complicated in shape, so they are expensive to manufacture, and they can be used in applications such as sheet cutting devices that receive loads even if they are extremely light. There is strong anxiety about using it. The present invention solves the above problems, the assembly work is simple, the number of parts is small,
It is therefore an object of the present invention to provide a lightweight, inexpensive and highly accurate movable blade for a cutting device.

【0004】[0004]

【課題を解決するための手段】本願発明者は、上記の問
題点を解消するため種々検討を行った結果、支持板ある
いは側板に設けられた軸穴の全長に支持軸を嵌入しなく
ても、軸穴の長さの半分程度の深さまで支持軸が嵌入さ
れていれば、シート切断装置のような軽荷重の用途であ
れば、軸と軸受としての機能を発揮し得ることを見出し
て、本願発明を完成したものである。そして、上記のよ
うな支持軸を形成するには、プレス機による押出加工
(エンボス加工とも言う)によって突起状の押出軸を成
形し、この押出軸を軸穴に嵌入すればよいことが判明し
た。より具体的に説明すると、固定刃と協働してシート
材の切断を行う板金成形された可動刃であって、刃の側
面にプレス成形された側板と、該側板にエンボス成形さ
れた押出軸とを具備し、前記押出軸は、可動刃の回転の
支持軸となるシート切断装置用可動刃である。
The inventor of the present invention has made various studies to solve the above-mentioned problems, and as a result, it has been found that even if the support shaft is not fitted into the entire length of the shaft hole provided in the support plate or the side plate. If the support shaft is inserted to a depth of about half of the length of the shaft hole, it is found that if it is a light load application such as a sheet cutting device, it can function as a shaft and a bearing, The present invention has been completed. Then, in order to form the support shaft as described above, it has been found that a protruding extrusion shaft is formed by extrusion (also referred to as embossing) by a press machine, and this extrusion shaft may be fitted into a shaft hole. . More specifically, the movable blade is a sheet metal formed movable blade that cuts a sheet material in cooperation with a fixed blade, and a side plate that is press-formed on a side surface of the blade, and an extrusion shaft that is embossed on the side plate. Wherein the extrusion shaft is a movable blade for a sheet cutting device serving as a support shaft for rotation of the movable blade.

【0005】[0005]

【作用】本発明は、可動刃の側板を板金で成形する場
合、側板となる板金に押出加工で押出軸を設けて支持板
に加工した軸穴等に嵌入することが可能な構造を有する
シート切断装置用可動刃である。上記のような押出軸と
軸穴によって軸支可能な構造とすることにより、シート
切断装置の部品点数が少なくなり、組立時には組立が簡
単になるので組立工数も低減できるうえ、支持軸を接着
やかしめ等により接合する従来の方法よりも、装置全体
の位置関係を高精度に確保できるし、コストも大幅に低
減することができる。
According to the present invention, when a side plate of a movable blade is formed of a sheet metal, a sheet having a structure capable of being fitted with a shaft hole or the like formed in a support plate by providing an extrusion shaft by extrusion in a sheet metal serving as a side plate. It is a movable blade for a cutting device. By adopting a structure that can be supported by the extrusion shaft and the shaft hole as described above, the number of parts of the sheet cutting device is reduced, and the assembling is simplified at the time of assembling. Compared with the conventional method of joining by caulking or the like, the positional relationship of the entire apparatus can be secured with higher accuracy, and the cost can be significantly reduced.

【0006】[0006]

【実施例】次に実施例と図面に基づいて本発明を詳細に
説明する。図1は、板金成形された本発明の可動刃、お
よびそれを用いたシート切断装置の実施例を示すもので
ある。図1において可動刃2は、厚さ2mmの板金でその
両側板21も一体的にプレス成形し、同時に両端の側板
に押出軸22を加工し、支持板3および4に設けた軸穴
32と42に挿入して軸支した。一方、固定刃1は、厚
さ2mmの板金でその側板11も一体的に曲げ成形し、側
板11には押出軸12を加工して、支持板4に設けた軸
穴42に挿入し、さらに他端はばね6を介し、支持軸を
支持板3に設けた穴32に挿入し、可動刃2に圧接し
た。支持板3および4は、ねじ7を用いてベース5に固
定した。次に、押出軸の実施例の形状について詳細に説
明する。図2は、一般に良く使用される半ヌキダボ(エ
ンボス加工ともいう)の断面形状を示すものである。半
ヌキダボは、穴抜き加工と同様な要領でプレス加工し、
穴が貫通する前の状態でポンチを停止させるものである
ため、ダボは周囲の板金部分から剪断され、分離したよ
うな状態となる。このため、固定刃または回転刃を軸支
し、比較的大きな繰り返し負荷が加わる軸として使用す
る場合、使用途中に外れてしまう可能性が推測される。
そこで、本実施例に使用した押出軸は、図3に断面形状
を示すような形状の押出軸を採用した。図2示す半ヌキ
ダボは、ダボ径Aと穴径Bの寸法差がプレス型とポンチ
のクリアランス量程度の差しかなく、ほぼ同寸法である
が、図3のように軸径Cよりも大きな大穴径Dとなるよ
うなプレス加工を行なえば、押出軸は剪断されないから
周囲の板金部分から分離するような形状ではなく、強度
的にも問題点はなく支持軸として安心して使用すること
ができた。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments and drawings. FIG. 1 shows an embodiment of a movable blade of the present invention formed by sheet metal, and a sheet cutting apparatus using the movable blade. In FIG. 1, the movable blade 2 is formed by press-molding both side plates 21 integrally with a sheet metal having a thickness of 2 mm. At the same time, the extruding shafts 22 are formed on the side plates at both ends, and the shaft holes 32 provided in the support plates 3 and 4 are formed. 42 and supported. On the other hand, the fixed blade 1 is also formed by bending the side plate 11 integrally with a sheet metal having a thickness of 2 mm. The side plate 11 is formed with an extrusion shaft 12 and inserted into a shaft hole 42 provided in the support plate 4. The other end of the support shaft was inserted into the hole 32 provided in the support plate 3 via the spring 6 and pressed against the movable blade 2. The support plates 3 and 4 were fixed to the base 5 using screws 7. Next, the shape of the example of the extrusion shaft will be described in detail. FIG. 2 shows a cross-sectional shape of a half-fin dowel (also referred to as embossing) that is generally used. The half-puffed dowel is pressed in the same way as the hole punching process,
Since the punch is stopped before the hole penetrates, the dowel is sheared from the surrounding sheet metal portion, and the dowel is separated. For this reason, when the fixed blade or the rotary blade is supported as a shaft and used as a shaft to which a relatively large repetitive load is applied, it is presumed that the blade may come off during use.
Therefore, as the extrusion shaft used in this example, an extrusion shaft having a cross-sectional shape shown in FIG. 3 was employed. The semi-aqueous dowel shown in FIG. 2 has almost the same size as the dowel diameter A and the hole diameter B, which are almost the same as the clearance between the press die and the punch, but as shown in FIG. If the pressing process was performed to achieve the diameter D, the extrusion shaft was not sheared, so it was not shaped so as to be separated from the surrounding sheet metal part. .

【0007】[0007]

【発明の効果】以上説明したように本発明によれば、シ
ート切断装置用可動刃について、板金製の可動刃の側板
にプレス等の押出加工によって押出軸を設け、シート切
断装置の組立て時にこの押出軸を軸穴に嵌入して軸支可
能な構造とすることにより、シート切断装置の部品点数
が大幅に削減されるので、それに伴って組立工数や軸な
どの部品加工のためのコストが低減されるとともに、装
置全体の軽量化が達成できる。さらに、本発明の可動刃
を適用することで部品点数が少なくなることにより、寸
法精度の向上が可能となって、安価で信頼性の高い切断
装置を提供することが可能となる。
As described above, according to the present invention, the movable blade for the sheet cutting device is provided with an extruding shaft by extrusion or the like on the side plate of the movable blade made of sheet metal. The structure that allows the extrusion shaft to be inserted into the shaft hole to support the shaft greatly reduces the number of parts in the sheet cutting device, thereby reducing assembly man-hours and costs for processing parts such as shafts. At the same time, the weight of the entire apparatus can be reduced. Furthermore, by applying the movable blade of the present invention, the number of components is reduced, so that dimensional accuracy can be improved, and a low-cost and highly reliable cutting device can be provided.

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

【図1】本発明に係るシート切断装置用可動刃とそれを
用いたシート切断装置の実施例を示す斜視図である。
FIG. 1 is a perspective view showing an embodiment of a movable blade for a sheet cutting device and a sheet cutting device using the same according to the present invention.

【図2】本発明に係る半ヌキダボの形状の一例を示す断
面図である。
FIG. 2 is a cross-sectional view showing an example of the shape of a half-fin dowel according to the present invention.

【図3】本発明に係る実施例に用いた押出軸の一例を示
す断面図である。
FIG. 3 is a cross-sectional view illustrating an example of an extrusion shaft used in an example according to the present invention.

【符号の説明】[Explanation of symbols]

1 固定刃 11 固定刃側板 12 固定刃押出軸 2 可動刃 21 可動刃側板 22 可動刃押出軸 3 切始側支持板 32 切始側支持板の軸穴 4 切終側支持板 42 切終側支持板の軸穴 5 スペースプレート 6 ばね 7 ねじ A ダボ径 B 穴径 C 軸径 D 大穴径 DESCRIPTION OF SYMBOLS 1 Fixed blade 11 Fixed blade side plate 12 Fixed blade extrusion shaft 2 Movable blade 21 Movable blade side plate 22 Movable blade extrusion shaft 3 Cutting start side support plate 32 Shaft hole of cutting start side support plate 4 Cutting end side support plate 42 Cutting end side support Shaft hole of plate 5 Space plate 6 Spring 7 Screw A Dowel diameter B Hole diameter C Shaft diameter D Large hole diameter

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B26D 1/38 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B26D 1/38

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 固定刃と協働してシート材の切断を行う
板金成形された可動刃であって、刃の側面にプレス成形
された側板と、該側板にエンボス成形された押出軸とを
具備し、前記押出軸は、可動刃の回転の支持軸となるこ
とを特徴とするシート切断装置用可動刃。
1. A movable blade formed by sheet metal forming which cuts a sheet material in cooperation with a fixed blade, comprising: a side plate press-formed on a side surface of the blade; and an extrusion shaft embossed on the side plate. The movable blade for a sheet cutting device, wherein the extrusion shaft serves as a support shaft for rotating the movable blade.
JP16538191A 1991-07-05 1991-07-05 Sheet cutting equipment Expired - Fee Related JP3241751B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16538191A JP3241751B2 (en) 1991-07-05 1991-07-05 Sheet cutting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16538191A JP3241751B2 (en) 1991-07-05 1991-07-05 Sheet cutting equipment

Publications (2)

Publication Number Publication Date
JPH058195A JPH058195A (en) 1993-01-19
JP3241751B2 true JP3241751B2 (en) 2001-12-25

Family

ID=15811304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16538191A Expired - Fee Related JP3241751B2 (en) 1991-07-05 1991-07-05 Sheet cutting equipment

Country Status (1)

Country Link
JP (1) JP3241751B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102624120A (en) * 2012-04-20 2012-08-01 岳群生 Asynchronous starting permanent magnet synchronous motor rotor with tangent magnetic circuit

Also Published As

Publication number Publication date
JPH058195A (en) 1993-01-19

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