JP2563192B2 - Reciprocating electric razor - Google Patents
Reciprocating electric razorInfo
- Publication number
- JP2563192B2 JP2563192B2 JP62312957A JP31295787A JP2563192B2 JP 2563192 B2 JP2563192 B2 JP 2563192B2 JP 62312957 A JP62312957 A JP 62312957A JP 31295787 A JP31295787 A JP 31295787A JP 2563192 B2 JP2563192 B2 JP 2563192B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- outer blade
- cutter frame
- blade frame
- locking
- 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
Links
Landscapes
- Dry Shavers And Clippers (AREA)
Description
【発明の詳細な説明】 （技術分野） 本判明は、外刃を組み込んだ外刃枠体をその端面部で
弾性的に係止した往復式電気かみそりに関する。TECHNICAL FIELD The present invention relates to a reciprocating electric shaver in which an outer blade frame body incorporating an outer blade is elastically locked at an end face portion thereof.
（背景技術） 従来の往復式電気かみそりの外刃枠体の着脱機構とし
て、特開昭61−386号公報に開示された技術がある。し
かし、この構造では以下の様な欠点を有していた。(Background Art) As a mechanism for attaching and detaching an outer blade frame of a conventional reciprocating electric shaver, there is a technique disclosed in JP-A-61-386. However, this structure has the following drawbacks.
（イ） 外刃枠には、内刃摺動方向の両壁に内刃押上方
向に切欠部を有した外刃フレーム係止片があるが、両壁
の肉厚が大である為、係止片の弾性に比べ十分に剛に構
成されている。従って外刃フレームとの着脱は係止片の
みの弾性変形で作用する為係止片の長さが十分でない場
合は弾性片の根本の応力が大となり、破損しやすい。ま
た破損を防止する為には、長さが大になり、形がコンパ
クトにならない。(A) The outer blade frame has outer blade frame locking pieces that have notches in the inner blade pushing-up direction on both walls in the inner blade sliding direction. It is sufficiently rigid compared to the elasticity of the stopper. Therefore, since attachment / detachment to / from the outer blade frame is effected by elastic deformation of only the locking piece, if the length of the locking piece is not sufficient, the stress at the base of the elastic piece becomes large and the elastic piece is easily damaged. Also, in order to prevent breakage, the length is too long and the shape is not compact.
（ロ） 外刃枠の内刃摺動方向両端壁の外刃接触部の肉
厚が大の為、外刃の長さが頂上部より小にしなければな
らず、内刃と外刃の接触有効面積が小となる。(B) Since the thickness of the outer blade contact part on both end walls of the outer blade frame in the sliding direction of the inner blade is large, the length of the outer blade must be smaller than the top, and the contact between the inner blade and the outer blade The effective area is small.
（発明の目的） 本発明は上記の欠点を改善するために提案されたもの
で外刃部の本体からの着脱時の操作性を容易にし、着脱
時の外刃枠の破損防止及び外刃の有効切断領域の縮小の
防止、また外刃枠のコンパクト化をはかることを目的と
する。(Object of the invention) The present invention has been proposed in order to improve the above-mentioned drawbacks and facilitates operability when attaching and detaching the outer blade part from the main body, preventing damage to the outer blade frame when attaching and detaching, and The purpose is to prevent the reduction of the effective cutting area and to make the outer cutter frame compact.
（発明の開示） 本発明の実施例について説明する。第１図ないし第７
図は本発明の第一実施例を示す。(Disclosure of the Invention) An example of the present invention will be described. 1 to 7
The figure shows a first embodiment of the invention.
第１図は本体組立図を示す側面図で、１は駆動源を内
蔵した本体部で下の部分は省略してある。２は外刃ブロ
ックを固定する外刃フレーム、３は外刃５を支持する外
刃枠体、４は複数のブレードからなる内刃である。外刃
枠３はその両端に設けた外刃枠係止部６によって外刃フ
レーム２に弾性的に係止してある。かくして、外刃枠体
３は外刃フレーム２に着脱自在に装着される。FIG. 1 is a side view showing an assembly view of a main body, and reference numeral 1 is a main body in which a drive source is incorporated, and a lower portion is omitted. Reference numeral 2 is an outer blade frame that fixes the outer blade block, 3 is an outer blade frame that supports the outer blade 5, and 4 is an inner blade composed of a plurality of blades. The outer blade frame 3 is elastically locked to the outer blade frame 2 by outer blade frame locking portions 6 provided at both ends thereof. Thus, the outer blade frame 3 is detachably attached to the outer blade frame 2.
次に、第２図（イ），（ロ）及び（ハ）は各部の分解
斜視図を示すものであって、同図（イ）は外刃５と外刃
枠体３、同図（ロ）は外刃フレーム２、同図（ハ）は内
刃を省略した本体部１のそれぞれの斜視図である。これ
らの図において、外刃枠体３の両端部に設けられた係止
解除用弾性フック部７および係止用弾性フック部８とか
らなる外刃枠係止部６は、外刃フレーム２の両端部に設
けられた外刃フレーム嵌合部９と係合し、さらに、外刃
フレーム２の両端の内側に設けられた凹部10と本体部１
の両側に設けられた凸部11とが突合して、外刃枠体３と
外刃フレーム２と本体部１とは一体的かつ着脱自在に係
合される。また、係止解除用弾性フック部７と係止弾性
フック部８との間は隙間が形成される。Next, FIGS. 2 (a), (b), and (c) show exploded perspective views of the respective parts. FIG. 2 (a) shows the outer blade 5, the outer blade frame 3, and the same figure (b). 8A is a perspective view of the outer blade frame 2, and FIG. 8C is a perspective view of the main body 1 without the inner blade. In these drawings, the outer cutter frame locking portion 6 including the unlocking elastic hook portions 7 and the locking elastic hook portions 8 provided at both ends of the outer cutter frame 3 is the outer cutter frame locking portion 6 of the outer cutter frame 2. It engages with outer blade frame fitting portions 9 provided at both ends, and further has a recess 10 and a main body portion 1 provided inside both ends of the outer blade frame 2.
The outer cutter frame 3, the outer cutter frame 2, and the main body 1 are integrally and detachably engaged with the convex portions 11 provided on both sides of the outer cutter frame 11. Further, a gap is formed between the unlocking elastic hook portion 7 and the locking elastic hook portion 8 .
さらに、第３図ないし第５図を用いて外刃枠体と外刃
フレームとの嵌合係止について述べることとする。第３
図及び第４図は外刃枠係止部を係止用弾性フック部側及
び係止解除用弾性フック部側に分割してそれぞれ相対向
する内側からみた斜視図である。また、第５図は外刃フ
レーム嵌合部の斜視図である。これらの図において、ま
ずその構成について述べる。Further, the fitting and locking of the outer cutter frame and the outer cutter frame will be described with reference to FIGS. 3 to 5. Third
FIG. 4 and FIG. 4 are perspective views of the outer blade frame locking portion divided into a locking elastic hook portion side and a locking releasing elastic hook portion side, as viewed from the inside facing each other. FIG. 5 is a perspective view of the outer blade frame fitting portion. In these figures, the configuration will be described first.
第３図に示す係止用弾性フック部８と第４図の係止解
除用弾性フック７とは上部に形成された手指引っかけ部
12によって一体に構成され、全体として大略逆Ｕ字状を
なす外刃枠係止部６を形成する。第３図に示す係止用弾
性フック部８は両側に切込凹部13が形成されたフック14
を備え、フック14の先端とそれに連接して外刃枠変形ガ
イド斜面15及び係止面16が形成され、またフック14の中
央に長さ方向に偏肉厚大部17が形成されている。フック
14の上端すなわち、手指ひっかけ部12の下面の内刃押上
方向には凹状の倒れ防止切欠溝18が形成され、従ってフ
ック14は弾性を有し、十分撓み得る形状をなしている。
さらに外刃枠体３の端面3aにおいて、外刃枠体３の側壁
3bの内側に沿って切欠部3cが形成されている。従って、
端面3aの上部は、十分なたわみ性を有するため、フック
14を外刃フレームから解除する場合、線分3d部に曲げモ
ーメントが働き、フック14と側壁の合成変形により着脱
が行われる。The elastic hooks 8 for locking shown in FIG. 3 and the elastic hooks 7 for unlocking shown in FIG. 4 are finger hooks formed on the upper part.
The outer blade frame engaging portion 6 is integrally formed by 12 and has a substantially inverted U shape as a whole. The elastic hook portion 8 for locking shown in FIG. 3 has a hook 14 having notches 13 formed on both sides.
The outer blade frame deformation guide slope 15 and the locking surface 16 are formed so as to be connected to the tip of the hook 14, and the thick thick portion 17 is formed at the center of the hook 14 in the longitudinal direction. hook
At the upper end of 14, that is, on the lower surface of the finger grip portion 12, a concave fall prevention notch groove 18 is formed in the inner blade pushing-up direction, so that the hook 14 has elasticity and is sufficiently flexible.
Further, at the end surface 3a of the outer cutter frame 3, the side wall of the outer cutter frame 3
A notch 3c is formed along the inside of 3b. Therefore,
The upper part of the end face 3a has sufficient flexibility so that the hook
When the 14 is released from the outer blade frame, a bending moment acts on the line segment 3d, and the hook 14 and the side wall are combined and deformed to be attached and detached.
従って、フック14の根本の応力緩和及び、フックの長
さがそれ程大きくなくても許容できる応力となり、外刃
枠体のコンパクト化が可能となる。また第６図は、外刃
枠を前面から見た図であり、上記の切欠3cにより外刃の
長さが頂部及び外刃枠前壁近傍部共L1＝L2の長さで設計
でき切刃有効面積が大となる。Therefore, the stress at the root of the hook 14 can be relaxed and the stress can be tolerated even if the length of the hook is not so large, and the outer blade frame can be made compact. FIG. 6 is a view of the outer cutter frame seen from the front, and the notch 3c allows the outer cutter length to be designed such that both the top and the outer cutter frame front wall are L 1 = L 2. The effective area of the cutting edge becomes large.
また第４図の係止解除用フック７は先端にスライド傾
斜面19が形成され、かつ中央部において長さ方向にガイ
ド肉厚大部20が形成され、また先端背部には着脱のため
の押ボタン21が設けてあり、弾性を有し十分撓み得る形
状をなしている。The unlocking hook 7 shown in FIG. 4 has a slide inclined surface 19 formed at the tip and a thick guide wall portion 20 formed in the central portion in the longitudinal direction. A button 21 is provided and has a shape that is elastic and can be sufficiently bent.
次に、第５図に示す外刃フレーム嵌合部９は外刃枠係
止部６に嵌合して外刃枠体３を係止するものであって、
切欠溝22の両内側には倒れ防止切溝18と嵌合する凸状の
倒れ防止壁23が形成され、倒れ防止壁23の底面には係止
面16を係止するストッパー部24が形成され、下端内側に
はガイド肉厚大部20と当接するガイド面25が形成され、
また下部側面には外刃枠変形ガイド斜面15と当接する外
刃フレーム変形ガイド斜面26が形成されている。かくし
て、外刃枠体３を外刃フレーム２に圧入挿着すると外刃
枠係止部６と外刃フレーム嵌合部９とのそれぞれの部位
が嵌合して、外刃枠体３を外刃フレーム２に係止するこ
とができる。また、フック14は隙間Ａに、ガイド肉厚大
部20は隙間Ｂに当接する。さらに第５図のＸ−Ｘ線に沿
う断面を示す第７図（イ），（ロ）で着脱状態について
説明する。（イ）は外刃枠体が外刃フレームにセットさ
れた状態、（ロ）は係止片が外刃フレームから外された
時を示している。Next, the outer blade frame fitting portion 9 shown in FIG. 5 is fitted to the outer blade frame locking portion 6 to lock the outer blade frame body 3.
On both inner sides of the cutout groove 22, a convex fall prevention wall 23 that fits with the fall prevention cut groove 18 is formed, and a stopper portion 24 that locks the locking surface 16 is formed on the bottom surface of the fall prevention wall 23. , A guide surface 25 that contacts the thick guide portion 20 is formed inside the lower end,
Further, an outer cutter frame deformation guide slope 26 that contacts the outer cutter frame deformation guide slope 15 is formed on the lower side surface. Thus, when the outer blade frame body 3 is press-fitted and inserted into the outer blade frame 2, the outer blade frame locking portion 6 and the outer blade frame fitting portion 9 are fitted to each other, and the outer blade frame body 3 is removed. It can be locked to the blade frame 2. Further, the hook 14 contacts the gap A, and the thick guide portion 20 contacts the gap B. Further, the attached / detached state will be described with reference to FIGS. 7A and 7B showing a cross section taken along line XX of FIG. (A) shows a state where the outer blade frame is set on the outer blade frame, and (B) shows a time when the locking piece is disengaged from the outer blade frame.
まず、図（イ）は外刃枠体３が外刃フレーム２にセッ
トされた状態で、外刃枠体の係止解除用弾性フック７と
係止用弾性フック８とは隙間ａを形成し、倒れ防止壁23
で外刃枠体３の外刃５側への変形を防止している。隙間
ａを形成することにより、脱時に係止解除用弾性フック
部７が係止用弾性フック８の解除に必要な変形量より、
さらに隙間ａだけ変形が必要であり、不用意に外刃枠体
３が外刃フレーム２から外れない作用をする。First, in the state (a) in which the outer cutter frame 3 is set in the outer cutter frame 2, a gap a is formed between the unlocking elastic hook 7 and the locking elastic hook 8 of the outer cutter frame. , Fall prevention wall 23
Thus, the outer blade frame 3 is prevented from being deformed toward the outer blade 5. By forming the clearance a, the elastic hook portion 7 for releasing the lock is deformed more than the deformation amount required for releasing the elastic hook 8 for the lock at the time of disengagement.
Furthermore, only the gap a needs to be deformed, which acts to prevent the outer cutter frame 3 from being accidentally disengaged from the outer cutter frame 2.
次に、図（ロ）の脱時の過程では、押圧ボタン21に矢
印Ａ方向の押圧力でストッパー部24の引っかかりを外す
位置まで、係止解除用弾性フック７および係止用弾性フ
ック８と第３図で示す3d線の側壁の曲げ作用の弾性変形
を発生させ次に係止解除用弾性フック７をＢ方向に引張
力を作用させて引き抜く、この場合、スライド傾斜面19
を係止解除用弾性フック部７に設けているので、係止解
除用弾性フック部７の余分の変形が発生せず、発生圧力
を押えて外刃フレーム２と外刃枠体３とのスライドが滑
らかになり解除が容易となる。Next, in the process of releasing shown in FIG. 6B, the unlocking elastic hook 7 and the locking elastic hook 8 are pushed to the position where the pressing force of the pressing button 21 in the direction of arrow A releases the stopper 24. Elastic deformation of the side wall of the 3d line shown in FIG. 3 is caused by bending action, and then the unlocking elastic hook 7 is pulled out by applying a pulling force in the B direction.
Since the lock releasing elastic hook portion 7 is provided, the lock releasing elastic hook portion 7 is not excessively deformed, and the generated pressure is pressed to slide the outer blade frame 2 and the outer blade frame 3 together. Becomes smoother and easier to release.
第８図,9図に本発明の第二の実施例を示す。第８図は
外刃枠体３において両端部3aの頂部側の肉厚t1を、下方
側肉厚t2より小、即ちt1＜t2としかつ、肉部は内刃摺動
両端側としている。これは前述の壁の曲げモーメントに
対する曲がりやすさ及び外刃有効切刃長さを大にする効
果があるが、次に示す効果が付加的に与えられる。第９
図はこれを説明する図で内・外刃セット時の断面図であ
るが内刃押上バネ及び本体部は省略してある。上記の効
果は髭そり時肌の押付けは側方から来る場合があり、ま
たシェーバーの落下などで内刃が外刃枠に衝撃力を加え
る場合が発生する。これは図中のF1の力である。この場
合外刃枠体の内刃摺動側両壁の両端部を切欠くと、その
切欠部の根本に曲げと引っ張りの応力集中が加わり、ク
ラックが発生し易い。これを防止する為本発明では上部
に肉部を設けることにより、曲げの応力集中を緩和し、
これによる破れを防ぐことができる。A second embodiment of the present invention is shown in FIGS. FIG. 8 shows that the thickness t 1 on the top side of both ends 3a of the outer blade frame 3 is smaller than the lower side thickness t 2 , that is, t 1 <t 2 , and the thickness of the inner blade slides both ends. I am trying. This has the effect of increasing the bendability with respect to the wall bending moment and increasing the outer blade effective cutting edge length, but the following effects are additionally provided. Ninth
The figure is a diagram for explaining this, and is a cross-sectional view when the inner and outer blades are set, but the inner blade pushing-up spring and the main body are omitted. The above effect may cause the skin to be pressed from the side when shaving, and the inner blade may apply an impact force to the outer blade frame when the shaver falls. This is the force of F 1 in the figure. In this case, if both ends of both the inner blade sliding side walls of the outer cutter frame are cut out, bending and tensile stress concentration is added to the root of the notch, and cracks are likely to occur. In order to prevent this, in the present invention, by providing a meat portion on the upper portion, the stress concentration of bending is relaxed,
This can prevent breakage.
（発明の効果） 叙上にように本発明によれば電気かみそりにおいて、
外刃を取付けた外刃枠体の端面において上方の部分のた
わみ性を増大せしめたことにより、 （イ） 外刃枠体の着脱時、外刃枠体の応力の集中を緩
和し破損の防止及び着脱性が向上する。(Effects of the Invention) As described above, in the electric razor according to the present invention,
By increasing the flexibility of the upper part of the end face of the outer cutter frame with the outer cutter attached, (a) When attaching and detaching the outer cutter frame, the concentration of stress on the outer cutter frame is relieved and damage is prevented. And the detachability is improved.
（ロ） 外刃の有効切刃面積が、外刃露出部で外刃枠に
制約されずに大にすることが出来る。(B) The effective cutting edge area of the outer blade can be increased without being restricted by the outer blade frame at the outer blade exposed portion.
（ハ） 外刃枠体の係止片がコンパクト化でき、大きさ
の制約が少ない。(C) The locking piece of the outer blade frame can be made compact, and there are few restrictions on the size.
（ニ） ヒゲそり時の応力、及び落下の応力に対し応力
集中が緩和出来る。(D) The stress concentration can be relaxed against the stress of the beard and the stress of the fall.
等の効果を有するものである。And so on.
第１図は本発明の電気かみそりの本体組立図を示す側面
図、第２図は各部の分解斜視図、第３図及び第４図は外
刃枠係止部の斜視図、第５図は外刃フレーム嵌合部の斜
視図、第６図は外刃枠を前面から見た図、第７図は外刃
枠体と外刃フレームの嵌合状態の説明図、第８図及び第
９図は本発明の他の実施例を示す図で第８図は斜視図、
第９図は断面図を示す。 １……本体部、２……外刃フレーム、３……外刃枠体、
3a……端面、3b……側壁、3c……切欠部、3d……線分、
４……内刃、５……外刃、６……外刃係止部、７……係
止解除用弾性フック部、８……係止用弾性フック部、９
……外刃フレーム嵌合部、10……凹部、11……凸部、12
……手指ひっかけ部、13……切込凹部、14……フック、
15……ガイド斜面、16……係止面、17……偏肉厚大部、
18……切欠溝、19……スライド傾斜面、20……ガイド肉
厚大部、21……押圧ボタン、22……切欠溝、23……倒れ
防止壁、24……ストッパ部、25……ガイド面、26……ガ
イド斜面。FIG. 1 is a side view showing an assembly view of a main body of an electric shaver according to the present invention, FIG. 2 is an exploded perspective view of each portion, FIGS. 3 and 4 are perspective views of an outer blade frame engaging portion, and FIG. FIG. 6 is a perspective view of the outer cutter frame fitting portion, FIG. 6 is a view of the outer cutter frame seen from the front, and FIG. 7 is an explanatory view of a fitted state of the outer cutter frame and the outer cutter frame, FIG. 8 and FIG. FIG. 8 is a view showing another embodiment of the present invention, and FIG. 8 is a perspective view,
FIG. 9 shows a sectional view. 1 ... Main body, 2 ... Outer blade frame, 3 ... Outer blade frame,
3a ... end face, 3b ... side wall, 3c ... notch, 3d ... line segment,
4 ... Inner blade, 5 ... Outer blade, 6 ... Outer blade locking portion, 7 ... Releasing elastic hook portion, 8 ... Retaining elastic hook portion, 9
…… Outer blade frame fitting part, 10 …… Recessed part, 11 …… Convex part, 12
...... Finger hook part, 13 ...... cut recess, 14 ...... hook,
15 …… Slope of guide, 16 …… Locking surface, 17 …… Part with large uneven thickness,
18 …… Notch groove, 19 …… Sliding inclined surface, 20 …… Thickness of guide, 21 …… Press button, 22 …… Notch groove, 23 …… Tipping prevention wall, 24 …… Stopper section, 25 …… Guide surface, 26 ... Guide slope.
Claims (2)
て内刃の摺動する方向の端面に、内刃の押上方向に向う
切欠部を形成し、かつ前記端面の中央に外刃フレームと
係止及び解除するための弾性フック部を設け、前記外刃
枠体を前記外刃フレームに着脱可能にした電気かみそり
において、前記外刃枠体の端面において上方の部分のた
わみ性を増大せしめたことを特徴とする往復式電気かみ
そり。1. An outer blade frame body having an outer blade attached in an arched shape, wherein a notch is formed on the end face in the sliding direction of the inner blade, the notch facing the pushing-up direction of the inner blade, and the outer blade is provided at the center of the end face. In an electric shaver in which an elastic hook portion for locking and unlocking the frame is provided and the outer cutter frame can be attached to and detached from the outer cutter frame, the flexibility of the upper portion of the end face of the outer cutter frame is increased. A reciprocating electric razor characterized by being squeezed.
押上方向に向う切欠部を設け、かつ端面の肉厚を、上方
側は下方側より小としたことを特徴とする特許請求の範
囲第１項記載の往復式電気かみそり。2. The shape of the end face of the outer cutter frame is characterized in that notches are formed on both sides in the upward direction of the inner cutter, and the thickness of the end face is smaller on the upper side than on the lower side. A reciprocating electric razor according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62312957A JP2563192B2 (en) | 1987-12-10 | 1987-12-10 | Reciprocating electric razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62312957A JP2563192B2 (en) | 1987-12-10 | 1987-12-10 | Reciprocating electric razor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01151482A JPH01151482A (en) | 1989-06-14 |
| JP2563192B2 true JP2563192B2 (en) | 1996-12-11 |
Family
ID=18035520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62312957A Expired - Fee Related JP2563192B2 (en) | 1987-12-10 | 1987-12-10 | Reciprocating electric razor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563192B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0551253U (en) * | 1991-12-24 | 1993-07-09 | 三洋電機株式会社 | Electric razor with removable outer blade |
-
1987
- 1987-12-10 JP JP62312957A patent/JP2563192B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01151482A (en) | 1989-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |