WO2016135844A1 - Rasoir électrique rotatif - Google Patents

Rasoir électrique rotatif Download PDF

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Publication number
WO2016135844A1
WO2016135844A1 PCT/JP2015/055192 JP2015055192W WO2016135844A1 WO 2016135844 A1 WO2016135844 A1 WO 2016135844A1 JP 2015055192 W JP2015055192 W JP 2015055192W WO 2016135844 A1 WO2016135844 A1 WO 2016135844A1
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WO
WIPO (PCT)
Prior art keywords
blade
blade frame
frame body
outer blade
frames
Prior art date
Application number
PCT/JP2015/055192
Other languages
English (en)
Japanese (ja)
Inventor
哲彦 志水
Original Assignee
株式会社泉精器製作所
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 株式会社泉精器製作所 filed Critical 株式会社泉精器製作所
Priority to PCT/JP2015/055192 priority Critical patent/WO2016135844A1/fr
Publication of WO2016135844A1 publication Critical patent/WO2016135844A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor

Definitions

  • the present invention relates to a rotary electric razor.
  • Patent Document 1 a blade having an outer blade having an annular shaving surface on the upper surface and an inner blade rotating in sliding contact with the lower surface of the outer blade on a head case held by the main body A rotary electric shaver having a plurality of units is known.
  • the rotary electric shaver exemplified in Patent Document 1 has a configuration in which a movable blade frame provided with each outer blade is provided in the outer blade frame.
  • a movable blade frame provided with each outer blade is provided in the outer blade frame.
  • the present invention has been made in view of the above circumstances, and by realizing the holding structure of the outer blade in the head portion with a small number of parts and simplifying the structure, it is possible to reduce costs and reduce movable parts. In addition, it is possible to prevent dirt from accumulating in the gap, and furthermore, by realizing a structure in which the shape of the upper surface of the blade frame body can be changed between a convex surface and a concave surface, the user can follow the skin.
  • An object of the present invention is to provide a rotary electric razor that can be improved to improve shaving performance and shaving comfort.
  • the disclosed rotary electric shaver has a plurality of blade units each having an outer blade having an annular shaving surface on an upper surface and an inner blade rotating in sliding contact with the lower surface of the outer blade on a head case held by a main body.
  • a rotary-type electric razor to which an arranged blade frame is mounted, wherein the blade frame has a plurality of outer blade frames to which the respective outer blades are individually mounted and the adjacent outer blade frames
  • the head has a connecting portion to be connected to each other, the adjacent outer blade frames are connected with play so that they can be bent at the connecting position, and the upper surface of the blade frame body is convex. It is held in the case, and when at least one of the outer blade frames is pressed, all of the connected outer blade frames move together to be deformed so that the upper surface of the blade frame body becomes concave. It is a requirement that
  • the outer blade holding structure in the head portion can be realized with a small number of parts. Therefore, the structure can be simplified and the cost can be reduced. In addition, since the gap can be reduced by reducing the movable parts, accumulation of dirt in the gap can be reduced. Furthermore, it is possible to realize a structure in which the shape of the upper surface of the blade frame can be changed between a convex surface and a concave surface. Thereby, the followability to the user's skin is improved, and the shaving performance and the shaving feeling can be improved.
  • FIG. 1 is a schematic view (perspective view) showing an example of a rotary electric shaver 1 according to this embodiment.
  • FIG. 2 is a schematic view (disassembled perspective view) showing an example of the head portion 3 of the rotary electric shaver 1. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments, and the repetitive description thereof may be omitted.
  • the rotary electric shaver 1 includes an outer blade 22 having an annular shaving surface formed with a number of scissors entrances on the upper surface 22 a, and a lower surface of the outer blade 22.
  • the rotary electric shaver is configured to include an inner blade 42 having a small blade that rotates while being in sliding contact with the outer blade 22 and the inner blade 42 that cut the rod that has entered the retraction inlet.
  • the rotary electric shaver which has three sets of the blade units 16 comprised with the outer blade 22 and the inner blade 42 is mentioned as an example, it demonstrates, It is not limited to this.
  • reference numeral 2 denotes a main body, which includes a substantially cylindrical case 10.
  • the case 10 contains a battery, a motor, a control circuit board, and the like (all not shown).
  • a power switch 14 is attached to the front surface of the case 10.
  • reference symbol X denotes a connection position where adjacent outer blade frames 32 that are constituent elements of the blade frame body 30 are connected by a connecting portion 34 (details will be described later).
  • a main drive shaft (not shown) that outputs a driving force for rotationally driving the inner blade 42 of the blade unit 16 is disposed so as to protrude from the upper surface of the case 10 toward the head portion 3 (described later).
  • reference numeral 3 denotes a head portion.
  • the head unit 3 is held by the main body unit 2 so as to be tiltable.
  • the detailed structure of the head part 3 is shown in the exploded perspective view of FIG.
  • maintenance system to the main-body part 2 of the head part 3 is good also as a fixed type which cannot tilt.
  • the head unit 3 includes a head case 12 that is connected to and held by the upper part of the case 10 of the main body unit 2, a blade frame 30 that covers the head case 12 from above, and a head case.
  • a drive mechanism comprising a gear (not shown), an inner blade drive shaft 60 and the like housed in the inner bottom portion of 12, and three sets of blade units 16 held by the blade frame 30 so as to be slightly movable up and down and swingable.
  • each blade unit 16 includes a substantially disk-shaped outer blade 22 and an inner blade 42 that rotates while sliding on the lower surface (inner surface) of the outer blade 22.
  • the three sets of blade units 16 are arranged in a triangular shape in plan view. Note that, as described above, this embodiment is an example in which three sets of blade units 16 are provided, but the basic configuration may be considered similarly in the case where the blade units are other than three sets.
  • the inner blade drive shaft 60 that constitutes the drive mechanism is a member that is connected to the above-described main drive shaft via a gear or the like (not shown), and is a member that transmits the driving force of the motor and rotationally drives the inner blade 42. is there.
  • the inner blade drive shaft 60 according to the present embodiment has a configuration in which a spherical portion is provided at the upper end and is held by the inner blade drive bearing 61, and a return behavior in the extension direction is generated by retracting a coil spring inside. It has become. This return behavior is a pressing force of the inner blade 42 to the outer blade 22 which will be described later.
  • the inner blade 42 includes a plurality of small blades 42a in which a part of a metal plate is raised with respect to the plate surface, as shown in FIG.
  • the inner blade 42 is formed by performing die cutting and bending by press working using a metal plate made of stainless steel.
  • the inner blade 42 is made into the integral structure using a metal plate, it is not limited to this.
  • the inner blade 42 is fixed to a resin-made inner blade holding base 44, and a concave portion is formed in the lower portion of the inner blade holding base 44 to engage with the upper end (spherical portion) of the inner blade driving shaft 60. ing. That is, the spherical portion at the upper end of the inner blade drive shaft 60 is engaged with the recess formed in the lower portion of the inner blade holder 44 of the inner blade 42 from below so as to be able to swing, Communication is possible.
  • the said engagement structure is an example and you may employ
  • the outer cutter 22 is formed with a large number of scissors entrances on the upper surface 22a (that is, penetrating from the top surface 22a to the bottom surface), and the scissors entering the scissors entrance are sandwiched between the lower end portion and the inner cutter 42.
  • the outer cutter 22 has a substantially cup-like shape with its peripheral edge bent downward, and is configured to be fitted in a direction from the lower surface side to the upper surface side of the outer blade frame 32 described later. Thereby, the outer cutter 22 is configured to be held so as to be movable up and down and swingable with respect to the outer cutter frame 32 while being pressed from below by the inner cutter 42 described above.
  • various shapes, such as a radial slit shape, a round hole shape, or those combinations, can be employ
  • the inner blade 42 is configured to be held by the inner blade drive shaft 60 held by the inner blade drive bearing 61 and to come into contact with the outer blade 22.
  • the inner blade drive shaft 60 held by the inner blade drive bearing 61 and to come into contact with the outer blade 22.
  • the coil spring (not shown) of the inner blade drive bearing 61 can follow the vertical movement of the outer cutter 22, so that the inner cutter 42 is always pressed against the lower surface of the outer cutter 22.
  • three sets of independent blade units 16 each having a configuration in which the inner blade 42 is pressed from the lower surface side are formed for the three outer blades 22.
  • the blade unit 16 When the blade unit 16 is assembled with the above configuration, the upper end surface of the small blade 42a of the inner blade 42 comes into contact with the lower surface of the outer blade 22 respectively. In this state, the inner blade 42 is rotationally driven, whereby the scissors that have entered the scissors entrance can be cut with the cutting edge of the inner blade (the tip of the small blade 42a).
  • FIGS. 1 to 3 the outer cutter 22 has a plurality of outer cutter frames 32 to which the individual outer cutters 22 are individually attached, and the adjacent outer cutter frames 32 are connected by a connecting portion 34 so as to be integrated. I have.
  • FIG. 3 is a perspective view of the blade frame 30 as viewed from the lower surface side (note that the inner blade 42, the inner blade receiver 54, and the like are also illustrated).
  • the adjacent outer blade frames 32 are connected with play so that they can be bent at the connecting position X connected by the connecting portion 34. More specifically, as shown in FIGS. 4A and 4B, when the adjacent outer blade frames 32 are viewed from the side surfaces, the outer blade frames 32 can be bent at the connection position X connected by the connecting portion 34, that is, adjacent to the outer blade frames 32.
  • the angle ⁇ formed by the upper surfaces of each other can be changed between 180 [°] or less and 180 [°] or more. Note that the above-described configuration is adopted in all the adjacent outer blade frames 32.
  • the blade frame 30 can be configured to be deformable between a state where the upper surface 30a of the blade frame 30 is a convex surface (see FIG. 6A) and a state where the upper surface 30a is a concave surface (see FIG. 6B).
  • the upper surface 30a of the blade frame 30 can realize a structure that can be deformed between the convex surface and the concave surface, the followability to the user's skin is improved, and the shaving performance and the shaving comfort are improved. Can be improved.
  • the blade frame body 30 (outer blade frame 32) can directly realize a configuration for holding the outer blade 22, and can realize a configuration in which the upper surface 30a of the blade frame body 30 is deformed between a convex surface and a concave surface.
  • the movable part and the gap in the outer blade holding structure can be reduced, and the problem that dirt accumulates in the gap can be solved. Therefore, it is possible to provide a clean electric razor. In addition, it is possible to improve the appearance in terms of design.
  • connection part 34 which concerns on this embodiment is the 1st connection part 34A provided in the outer edge part of the blade frame 30, and the blade frame 30. And a second connecting portion 34B provided near the center (between the outer edge portion and the central portion).
  • each of the first connecting portion 34A and the second connecting portion 34B according to the present embodiment has a snap-fit engagement structure so that the connection is not released.
  • the blade frame 30 formed as a connection body of the plurality of outer blade frames 32 can be configured as an integral structure capable of the above deformation. Note that only one of the first connecting portion 34A and the second connecting portion 34B is sufficient as a snap-fit engagement structure.
  • the first connecting portion 34 ⁇ / b> A has one outer blade adjacent to each other.
  • a first snap-fit engagement protrusion 34A1 is provided on the frame 32, and a first snap-fit engagement groove 34A2 is provided on the other outer blade frame 32.
  • the connecting portion 34 can be configured so as not to be performed.
  • the connecting portion 34 At the connected position X, the adjacent outer blade frames 32 can be bent, and the upper surface 30a of the blade frame 30 can be deformed into a convex surface and a concave surface.
  • a second snap-fit engagement protrusion 34B1 is provided on one outer blade frame 32 adjacent to each other, and a second snap-fit engagement is performed on the other outer blade frame 32.
  • the groove 34B2 is provided, and the coupling portion 34 can be configured so that the coupling is not released by snap-fitting the both.
  • the adjacent outer blade frame 32 can be bent, and the upper surface of the blade frame body can be deformed into a concave surface and a convex surface.
  • the blade frame 30 formed as an integral structure that can be deformed is engaged with and held by the head case 12.
  • an engagement member 36 that is engaged with the head case 12 is provided on each outer blade frame 32 constituting the blade frame body 30. More specifically, the engagement member 36 is fitted into a fitting hole 35 provided in the head case 12, and a fulcrum shaft member 37 that supports the outer blade frame 32 in a swingable and detachable manner, and the fulcrum shaft. And a second urging member 38 that urges the member 37 in the direction of entering the fitting hole 35 (the arrow direction in FIG. 7).
  • each outer blade frame 32 can swing with respect to the head case 12 and the adjacent outer blade frames 32 can be bent to form a connected body of the outer blade frames 32.
  • transformation of the blade frame 30 to be performed is possible.
  • the wire spring is used for the 2nd biasing member 38 which concerns on this embodiment, it is not limited to this.
  • the fulcrum shaft member 37 has an axis L1 that serves as a swing axis when the outer blade frame 32 is swung with respect to the head case. It passes through a position coinciding with the center C1 of the shaving surface, and is provided in an arrangement orthogonal to the line L2 connecting the center C2 of the blade frame 30 and the center C1 of the shaving surface (see FIG. 7).
  • the passing position of the axis L1 may be arranged to pass through a position in the vicinity of the position that coincides with the center C1 (for example, a position within a distance of about 5 [mm] from the center C1).
  • the first urging member 56 that is constantly urged from the lower surface side of the blade frame 30 is provided so that the upper surface 30a of the blade frame 30 becomes a convex surface.
  • the first urging member 56 is provided (connected) to a movable shaft 52 movably held by the inner blade receiver 54, and the movable shaft 52 is directed from the lower surface to the upper surface of the blade frame 30. It is the composition which is energized. More specifically, as shown in FIGS. 2 and 3, a movable shaft 52 to which a first urging member (here, a coil spring) 56 is attached is disposed inside the cylindrical portion 54 a of the inner blade receiver 54. The urging force is applied to the movable shaft 52.
  • a first urging member here, a coil spring
  • the movable shaft 52 held by the inner blade receiver 54 fixed to the lower surface side of the blade frame 30 is urged by the first urging member 56 and is urged.
  • the shaft 52 is in contact with the lower surface side of the blade frame body 30, an action of urging the blade frame body 30 in the direction from the lower surface toward the upper surface is obtained.
  • the blade frame 30 is moved from the lower surface by the pressing force of the inner blade 42 against the outer blade 22 generated by the coil spring provided in the inner blade driving bearing 61 without providing the first urging member. It is good also as a structure urged
  • the inner blade receiver 54 has a plurality of (three in the present embodiment) fixing protrusions 54b.
  • Each of the fixing protrusions 54b is caused to enter a space portion between the inner blade receiving and fixing portion (here, the protruding portion) 39 and the connecting portion 34B provided on the blade frame 30 so as to correspond to the protruding protrusion pieces 54b.
  • the inner blade receiver 54 is fixed to the blade frame 32.
  • the inner blade receiving and fixing portion (projection portion) 39 is provided on the first connecting portion 34A (here, the first snap-fit engagement projection 34A).
  • the blade frame 30 can be bent at the connecting position X where the blade frame 30 is connected by the connecting portion 34 and the entire upper surface 30a is concave while realizing the structure of holding the inner blade holder 54 by the blade frame 30. And the convex surface, and the upper surface 30a of the blade frame body 30 is always urged by the first urging member 56 from the lower surface side of the blade frame body 30 so as to be a convex surface.
  • a configuration can be realized.
  • “Always energizing” refers to energizing the upper surface 30a to be a convex surface when no external force is applied to the upper surface 30a of the blade frame 30, and when the external force is applied, As described above, 30a can be deformed from a convex surface to a concave surface.
  • the inner blade receiver 54 has a plurality (three in the present embodiment) of ring portions 54c corresponding to the number of blade units 16. That is, by setting the inner blade receiver 54 to be fixed to the blade frame 32, the inner blade 42 can be prevented from falling off by the ring portion 54 c even when the blade frame 32 is detached from the head case 12. In use (when shaving), the ring portion 54c and the inner blade 42 are not in contact (interference).
  • the movable shaft 52 is provided with a groove 52a at the tip.
  • the blade frame 30 is provided with a projection assembly 33 configured as an assembly of projections 33a formed on each outer blade frame 32 at the center position on the lower surface side.
  • the protrusion assembly portion 33 is fitted and held in the groove portion 52 a provided in the movable shaft 52, so that the urged movable shaft 52 contacts the lower surface side of the blade frame 30.
  • the protrusion assembly part 33 when the upper surface 30a of the blade frame 30 is deform
  • the blade frame 30 (outer blade frame).
  • the blade frame 30 (outer blade frame 32) directly Since the configuration for holding the blade 22 can be realized and the configuration for deforming the upper surface 30a of the blade frame 30 with the concave surface and the convex surface can be realized, the movable part and the gap in the outer blade holding structure can be reduced. It is possible to solve the problem that dirt accumulates in the gap. In this way, it is possible not only to maintain cleanliness but also to give a clean and refined impression in terms of design.
  • the holding structure of the outer cutter 22 in the head unit 3 can be realized with a small number of parts, the structure can be simplified and the cost can be reduced.
  • the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the present invention.
  • the rotary electric shaver having three sets of blade units has been described as an example.
  • the present invention is not limited to this, and the rotary type has a plurality of sets (for example, four sets, five sets, etc.) of blade units. It can also be applied to electric razors.

Abstract

La présente invention se rapporte aux problèmes consistant à : obtenir une structure de support de lames externes utilisant un nombre réduit de pièces ; réduire les parties mobiles et les espaces ; et obtenir une structure dans laquelle la forme de la surface supérieure d'un corps de cadre de lames est modifiable entre une forme faisant saillie et une forme évidée. Ce rasoir électrique rotatif (1) qui apporte une solution aux problèmes mentionnés ci-dessus a un corps de cadre de lames (30) monté sur celui-ci, le corps de cadre de lames (30) ayant, disposée sur celui-ci, une pluralité d'unités de lames (16) ayant des lames externes (22) et des lames internes (42). Le corps de cadre de lames (30) a une pluralité de cadres de lames externes (32) sur lesquels les lames externes (22) sont montées individuellement, et présente des sections de connexion (34) qui relient chacune des cadres de lames externes (32) adjacents. Les cadres de lames externes (32) adjacents sont reliés les uns par rapport aux autres avec du jeu, de sorte que les cadres de lames externes (32) adjacents peuvent se courber les uns par rapport aux autres au niveau de la position (X) où les cadres de lames externes (32) adjacents sont reliés, et le corps de cadre de lames (30) est maintenu par un boîtier de tête (12) de sorte que la surface supérieure (30a) du corps de cadre de lames (30) a une forme faisant saillie. Quand au moins l'un des cadres de lames externes (32) est pressé vers le bas, tous les cadres de lames externes connectés (32) peuvent se déplacer de manière coordonnée, de sorte que la surface supérieure (30a) du corps de cadre de lames (30) se déforme en une forme évidée.
PCT/JP2015/055192 2015-02-24 2015-02-24 Rasoir électrique rotatif WO2016135844A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/055192 WO2016135844A1 (fr) 2015-02-24 2015-02-24 Rasoir électrique rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/055192 WO2016135844A1 (fr) 2015-02-24 2015-02-24 Rasoir électrique rotatif

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WO2016135844A1 true WO2016135844A1 (fr) 2016-09-01

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PCT/JP2015/055192 WO2016135844A1 (fr) 2015-02-24 2015-02-24 Rasoir électrique rotatif

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006527052A (ja) * 2003-06-10 2006-11-30 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ シェービング装置
JP2007319339A (ja) * 2006-05-31 2007-12-13 Izumi Products Co ロータリー式電気かみそり
JP2008073358A (ja) * 2006-09-22 2008-04-03 Izumi Products Co 回転式電気かみそり
JP2010005190A (ja) * 2008-06-27 2010-01-14 Izumi Products Co 回転式電気かみそり

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006527052A (ja) * 2003-06-10 2006-11-30 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ シェービング装置
JP2007319339A (ja) * 2006-05-31 2007-12-13 Izumi Products Co ロータリー式電気かみそり
JP2008073358A (ja) * 2006-09-22 2008-04-03 Izumi Products Co 回転式電気かみそり
JP2010005190A (ja) * 2008-06-27 2010-01-14 Izumi Products Co 回転式電気かみそり

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