JPH11244550A - Scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To strengthen functions of a 'curve' and a 'twist' to be basic elements of scissors and improve cutting quality by disposing a metallic plate spring or a resin arm from a fulcrum shaft to the hand side of a stationary blade or a movable blade and pressing the leg of the stationary blade or the movable blade by proper contact pressure, in the scissors having a fulcrum at the intermediate point. SOLUTION: A metallic plate spring (reinforcing spring) 7 is disposed from a fulcrum shaft (scissors body bolt) 4 to the hand side (referred to as the legs of the scissors or a handle) of a stationary blade 1 or a movable blade 2 and the legs of the scissors are energized by proper pressure. In order to adjust contact pressure on the legs of the scissors by the plate spring 7 corresponding to cutting stress of an object to be cut, contact pressure of a small plate spring 6, that is, contact pressure of the plate spring 7 is adjusted by arranging the small plate spring 6 passing the fulcrum shaft 4 through on the upper surface of the plate spring 7 and fastening and loosening a nut 5 screwed onto the scissors body bolt 4 to be the fulcrum shaft 4. Further, in order to always and properly operate the plate spring 7, a bearing 3 and a small ring with small frictional resistance are disposed around the fulcrum shaft 4 at the outside of the scissors body.

Description

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

【０００１】[0001]

【発明の属する技術分野】この発明は炭素繊維、光ファ
イバー、毛髪等硬く厚い被切断物に対応した鋏に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to scissors for cutting hard and thick objects such as carbon fibers, optical fibers, and hair.

【０００２】[0002]

【従来の技術】鋏には「ひねり」と「そり」又は「あ
き」と呼ぶ要素があり、「ひねり」は刃裏の先端が接触
するために必要であり、「そり」又は「あき」は刃元か
ら刃先まで平均した圧力で動、静刃が接するために必要
である。それらの要素が合成されて切断応力が一点に集
中するため、鋏はよく切れるようになる。参考文献 理
容刃大全2. Description of the Related Art Scissors have an element called "twist" and "sleigh" or "aki". The "twist" is necessary for the tip of the blade back to come into contact. It is necessary for the moving and stationary blades to contact with the average pressure from the cutting edge to the cutting edge. The scissors can be cut well because their elements are combined and the cutting stress is concentrated at one point. Bibliography

【０００３】[0003]

【発明が解決しようとする課題】従来の鋏では硬く、厚
い被切断物に対しては、その抵抗に負けないよう相当の
力を加えなければ切断できず、場合によっては切断不能
の状態も現出する。With conventional scissors, hard and thick objects cannot be cut without applying a considerable force so as not to lose the resistance, and in some cases, they cannot be cut. Put out.

【０００４】また、切断作業が長時間に亘る場合には肉
体的疲労も蓄積され、腱鞘炎等を誘発することもあり得
る。[0004] When the cutting operation is performed for a long time, physical fatigue is also accumulated, which may cause tendonitis or the like.

【０００５】[0005]

【課題を解決するための手段】支点軸から静刃又は動刃
の手元側（鋏の足又はハンドルとも云う）へ金属製の板
バネ又は樹脂製のアームを配設し、鋏の足を適正な圧力
で押す。Means for Solving the Problems A metal leaf spring or a resin arm is disposed from a fulcrum shaft to a hand side (also referred to as a scissor foot or a handle) of a stationary blade or a moving blade, and the scissor foot is properly adjusted. Press with appropriate pressure.

【０００６】その板バネ又はアームの鋏の足に対する接
圧力は被切断物の切断応力に対応して、調整可能とする
必要があるため、板バネ又はアームの上面に支点軸を貫
通させた小型の板バネを配し、支点軸である鋏身ボルト
に配したナットを締めたり緩めることにより小型板バネ
の接圧力を変化させ、その結果として板バネ又はアーム
の接圧力を調整する。The contact pressure of the leaf spring or the arm with the scissors' feet needs to be adjustable in accordance with the cutting stress of the object to be cut. The contact pressure of the small leaf spring is changed by tightening or loosening the nut disposed on the scissor body bolt which is the fulcrum shaft, and as a result, the contact pressure of the leaf spring or the arm is adjusted.

【０００７】また、板バネ又はアームが常に適正に作動
し、鋏の動、静刃が精密かつ正確に機能するよう、鋏身
の外側の支点軸回りにベアリング、コロ又は摩擦抵抗の
小さなリング等を配設する。Also, a bearing, a roller or a ring having a small frictional resistance around a fulcrum axis outside the scissor body so that the leaf spring or arm always operates properly and the movement of the scissors and the static blade function accurately and accurately. Is arranged.

【０００８】このようにして配設した板バネ又はアーム
は常に適正な接圧力で動刃又は静刃の足を押し続ける。
その結果、テコの原理により「そり」「ひねり」の機能
が強化され、鋏の切断力が向上する。The leaf spring or the arm thus arranged keeps pushing the moving blade or the static blade with an appropriate contact pressure.
As a result, the function of "sledding" and "twisting" is enhanced by the lever principle, and the cutting force of the scissors is improved.

【０００９】[0009]

【実施例】長さ４０ミリ幅１０ミリ厚さ０．６ミリ程度
の板バネの一方に、支点軸となる鋏身ボルトを貫通させ
る。他方の先端を動刃の足側に埋込む。この板バネを鋏
の切断力を補強するための補強バネとする。（図１の
７）DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A scissor body bolt serving as a fulcrum shaft is passed through one side of a leaf spring having a length of 40 mm, a width of 10 mm and a thickness of about 0.6 mm. The other end is embedded in the foot of the moving blade. This leaf spring is used as a reinforcing spring for reinforcing the cutting force of the scissors. (7 in FIG. 1)

【００１０】この補強バネの上面に、やはり鋏身ボルト
を貫通させた長さ２４ミリ幅１０ミリ厚さ０．４ミリ程
度の小型の板バネを重ねる。この小型板バネを補強バネ
の、動刃の足に対する接圧力を調整する調整バネとす
る。（図１の６）[0010] A small leaf spring having a length of 24 mm, a width of 10 mm, and a thickness of about 0.4 mm, which is also penetrated by scissor bolts, is overlaid on the upper surface of the reinforcing spring. This small leaf spring is an adjusting spring for adjusting the contact pressure of the reinforcing spring with the foot of the moving blade. (6 in FIG. 1)

【００１１】静刃の外側で、支点軸である鋏身ボルトの
回りに直径９ミリ程度のベアリングを埋込む。（図１の
３）On the outside of the stationary blade, a bearing having a diameter of about 9 mm is embedded around a scissor body bolt serving as a fulcrum shaft. (3 in Fig. 1)

【００１２】鋏身ボルトのナットを締込んでゆくと、調
整バネ補強バネ、そしてベアリング、静刃の鋏身、動刃
の鋏身と連結が強化されてゆき、調整バネが補強バネを
押し始める。When the nut of the scissor body bolt is tightened, the connection with the adjusting spring reinforcing spring, the bearing, the stationary blade scissor body and the moving blade scissor body is strengthened, and the adjusting spring starts pushing the reinforcing spring. .

【００１３】補強バネも当然動刃の足を押すことにな
り、動、静刃の「そり」「ひねり」の機能が強化され、
切断力が向上する。[0013] Naturally, the reinforcing spring also presses the foot of the moving blade, and the function of the moving and static blades "sledding" and "twisting" is enhanced.
Cutting power is improved.

【００１４】[0014]

【発明の効果】このように金属製の板バネ又は樹脂製の
アーム等を配設した鋏は、硬く厚い被切断物に対する切
断力を向上させる。また、被切断物の切断抵抗が同じで
あれば、従来の鋏よりも軽い力で切断が可能となるの
で、切味も向上したと感じるようになり、長時間に亘る
切断作業における肉体的疲労や腱鞘炎等を軽減予防でき
るようになる。As described above, scissors provided with a metal leaf spring or a resin arm improve the cutting force for hard and thick workpieces. In addition, if the cutting resistance of the object to be cut is the same, cutting can be performed with a lighter force than conventional scissors, so that the user feels that the sharpness has been improved, and the physical fatigue in the cutting operation for a long time. And tendonitis can be reduced and prevented.

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

【図１】断面図である。FIG. 1 is a sectional view.

【図２】斜視図である。FIG. 2 is a perspective view.

【図３】「そり」又は「あき」について。FIG. 3 “Sledding” or “Aki”.

【図４】「ひねり」について。FIG. 4 shows a “twist”.

【符号の説明】[Explanation of symbols]

１ 静刃 ２ 動刃 ３ ベアリング ４ 鋏身ボルト ５ ナット ６ 小型板バネ（調整バネ） ７ 板バネ（補強バネ） ８ ベアリングのボール ９ 鋏身ボルトの外輪頭部 １０ 静刃の足 １１ 動刃の足 １２ 動刃の刃裏 １３ 切先 １４ 「そり」又は「あき」 １５ 鋏身ネジ頭部 １６ 足又はハンドル １７ 峰 １８ 刃裏の「ひねり」 １９ 縦方向の切断力 ２０ 被切断物 ２１ 横方向の切断力 ２２ 切断応力 Reference Signs List 1 static blade 2 moving blade 3 bearing 4 scissor body bolt 5 nut 6 small leaf spring (adjustment spring) 7 leaf spring (reinforcement spring) 8 ball of bearing 9 outer ring head of scissor body bolt 10 static blade foot 11 moving blade Foot 12 Blade of moving blade 13 Cutting tip 14 "Sleigh" or "Aki" 15 Scissor body screw head 16 Foot or handle 17 Mine 18 "Twist" of blade back 19 Vertical cutting force 20 Cutting object 21 Lateral direction Cutting force 22 Cutting stress

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】中間に支点を持つ鋏において、支点軸から
静刃又は動刃の手元側（鋏の足又はハンドルとも云う）
へ金属製の板バネ又は樹脂製のアームを配設し、適正な
接圧力で静刃又は動刃の足を押すことにより、鋏の基本
要素である「そり」「ひねり」の機能を強化した鋏。In scissors having a fulcrum in the middle, a hand side of a stationary blade or a moving blade from a fulcrum shaft (also referred to as a foot or a handle of the scissors).
By disposing a metal leaf spring or resin arm and pressing the blade of a static blade or a moving blade with an appropriate contact pressure, the functions of "sledding" and "twisting", which are the basic elements of scissors, have been enhanced. scissors.