JPS6347474B2

JPS6347474B2 -

Info

Publication number: JPS6347474B2
Application number: JP26267485A
Authority: JP
Inventors: Shigeru Goto
Original assignee: Feather Safety Razor Co Ltd
Current assignee: Feather Safety Razor Co Ltd
Priority date: 1985-11-25
Filing date: 1985-11-25
Publication date: 1988-09-22
Also published as: JPS62122687A

Description

【発明の詳細な説明】（産業上の利用分野）本発明は折りたたみ式刃物の改良に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in folding cutlery.

（従来の技術）従来の折りたたみ式刃物は、柄の側板部の前部
内面と刃部の基部との間に、柄の回動を一定の位
置で固定するための凹凸による係止機構は存在し
ていた。しかしながら、柄を回動している間は、
凸部は凹部から外れるため支軸の周囲に強い圧力
が作用して、柄の回動が滑らかに行われなかつ
た。(Prior art) In conventional folding knives, there is a locking mechanism between the front inner surface of the side plate of the handle and the base of the blade, which uses unevenness to fix the rotation of the handle at a fixed position. Was. However, while rotating the handle,
Since the convex part was removed from the concave part, strong pressure was applied around the spindle, making it difficult to rotate the handle smoothly.

（発明が解決しようとする問題点）本発明は、従来の折りたたみ式刃物の柄が円滑
に回動できなかつた欠点を除去し、少しの力で柄
を円滑できる刃物を提供することを目的とする。(Problems to be Solved by the Invention) The purpose of the present invention is to eliminate the drawback that the handle of a conventional folding knife cannot be rotated smoothly, and to provide a knife that can smoothly rotate the handle with a small amount of force. do.

（問題点を解決するための手段）本発明の構成を実施例として示す図面に従つて
説明する。実施例は折りたたみ式かみそりに関す
るものである。(Means for Solving the Problems) The configuration of the present invention will be explained with reference to the drawings showing examples. The embodiment relates to a folding razor.

柄１と刃部２とは支軸３によつて回動可能に軸
着されている。柄１は両側板部４，４を有してい
て刃物の大部分はその間に折りたたまれる。両側
板部４，４の前部の間に刃部の基部１０が挟まれ
ている。柄及び刃部はプラスチツク製であつて、
刃部の前半部には刃体１１が固着されている。刃
部の基部に穿設された軸孔７の外側表面に凹部５
が設けられている。これに対応して柄の一方の側
板部の前部内面には凸部６が突設されている。柄
が完全に開かれたときに凹部５と凸部６とが係止
するように両者は位置づけられている。柄の軸孔
８を中心にして、凹部５と凸部６による係止部分
の内寄りに、軸孔８のまわりに沿つて切除部９が
柄の側板部に形成されている。この切除部９は例
えば第４図のように半円形の窪みでもよい。この
窪みは柄の軸孔８の周縁から遠ざかるに従つて深
くなるように傾斜している。第５図に示したもの
はスリツト穿設したものであつて軸孔８の周囲の
外側の半分にわたつて存在している。窪みにして
もまたスリツトにしても軸孔８の周囲の半分にわ
たつて延在しているものを示したが、必要に応じ
て増減される。 The handle 1 and the blade part 2 are rotatably attached to each other by a support shaft 3. The handle 1 has both side plate parts 4, 4, and most of the cutter is folded between them. A base portion 10 of the blade portion is sandwiched between the front portions of both side plate portions 4, 4. The handle and blade are made of plastic,
A blade body 11 is fixed to the front half of the blade part. A recess 5 is formed on the outer surface of the shaft hole 7 drilled in the base of the blade.
is provided. Correspondingly, a convex portion 6 is provided protruding from the front inner surface of one side plate portion of the handle. The concave portion 5 and the convex portion 6 are positioned so that they engage when the handle is completely opened. A cutout part 9 is formed in the side plate part of the handle around the shaft hole 8 of the handle, on the inner side of the locking part by the recess 5 and the convex part 6, and along the shaft hole 8. This cutout 9 may be, for example, a semicircular depression as shown in FIG. This depression is inclined to become deeper as it moves away from the periphery of the shaft hole 8 of the handle. The one shown in FIG. 5 is one in which a slit is bored and extends over the outer half of the periphery of the shaft hole 8. Although both the depression and the slit are shown extending over half of the circumference of the shaft hole 8, they may be increased or decreased as necessary.

なお、支軸の頭部はその周縁が、切除部の外周
縁１２よりも外側にはみ出ることのない大きさで
ある。また、凹部５と凸部６の係止は、柄の軸孔
８の外側に存在する幅狭部１３の内面で行われ
る。 The head of the support shaft has a size such that the circumferential edge thereof does not protrude beyond the outer circumferential edge 12 of the resection portion. Further, the recess 5 and the protrusion 6 are engaged with each other on the inner surface of the narrow portion 13 located outside the shaft hole 8 of the handle.

（作用、効果）本発明は以上のような構成であつて、柄の軸孔
８の周囲に沿つて切除部９が設けられているの
で、軸孔８の外側にある幅狭部１３は切除部がな
い場合に較べてたわみやすくなる。したがつて、
凹部５と凸部６の係止を外して刃部２を回動する
ときは、幅狭部１３が容易にたわんで外側に広が
るから、刃部の回動が円滑に行われるという効果
を奏する。(Operations and Effects) The present invention has the above-described configuration, and since the cutout portion 9 is provided along the circumference of the shaft hole 8 of the handle, the narrow portion 13 on the outside of the shaft hole 8 can be cut out. It is easier to bend than when there is no part. Therefore,
When the recess 5 and the protrusion 6 are disengaged and the blade 2 is rotated, the narrow portion 13 easily bends and spreads outward, resulting in smooth rotation of the blade. .

なお、本発明は実施例に示したかみそりのほ
か、ナイフやのこぎり等の刃物にも応用できるこ
とは勿論である。 It goes without saying that the present invention can be applied not only to the razor shown in the embodiments but also to cutlery such as knives and saws.

[Brief explanation of the drawing]

図面は本発明の実施例を示すものであつて第１
図はその正面図、第２図は柄の底面図、第３図は
刃部の正面図、第４図および第５図は柄の前部の
実施例を示す斜視図、第６図はＡ−Ａ断面図、第
７図はＢ−Ｂ断面図である。１……柄、２……刃部、５……凹部、６……凸
部、７……刃部の軸孔、８……柄の軸孔、９……
切除部。 The drawings show embodiments of the present invention.
The figure is a front view, Figure 2 is a bottom view of the handle, Figure 3 is a front view of the blade, Figures 4 and 5 are perspective views showing the embodiment of the front part of the handle, and Figure 6 is A. -A sectional view, and FIG. 7 is a BB sectional view. 1...Handle, 2...Blade part, 5...Concave part, 6...Convex part, 7...Shaft hole of blade part, 8...Shaft hole of handle, 9...
Excision.

Claims

[Scope of Claims] 1. A handle 1 and a blade part 2 are rotatably attached to each other by a support shaft 3, and the handle 1 has both side plate parts 4, 4, and a blade part 2 is attached to the front part of the both side plate parts. The base portion 10 of the blade portion is sandwiched between the blade portion 2, which can be folded against the handle, and either the front inner surface of the side plate portions 4, 4 or the base portion 10 of the blade portion that abuts thereon. In a folding knife, in which a convex part is formed on one side and a concave part is formed on the other side, and the blade part 2 can be fixed at a fixed position with respect to the handle by locking the concave part and the concave part on the other side, the blade part 2 can be fixed at a fixed position relative to the handle. A folding knife characterized in that a cutout part 9 is formed on the side plate part of the handle along the circumference of the shaft hole 8 on the inner side of the locking part formed by the recess and the protrusion. 2. In the foldable cutter according to claim 1, the cutout part 9 is a recess that extends in a semicircle around the shaft hole 8 of the handle, and this recess extends outward from the circumference of the shaft hole 8. A folding knife characterized by being sloped so that it becomes deeper. 3. The folding knife according to claim 1, wherein the cutout part 9 is a slit provided over the outer half of the periphery of the shaft hole 8 of the handle. 4. The cutter according to claim 1, wherein the folding cutter is a folding knife. 5. The cutter according to claim 1, wherein the folding cutter is a folding saw.