WO1995020340A1 - Appareil depilatoire - Google Patents

Appareil depilatoire Download PDF

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Publication number
WO1995020340A1
WO1995020340A1 PCT/AT1995/000015 AT9500015W WO9520340A1 WO 1995020340 A1 WO1995020340 A1 WO 1995020340A1 AT 9500015 W AT9500015 W AT 9500015W WO 9520340 A1 WO9520340 A1 WO 9520340A1
Authority
WO
WIPO (PCT)
Prior art keywords
pliers
spring
free legs
spreading
legs
Prior art date
Application number
PCT/AT1995/000015
Other languages
German (de)
English (en)
Inventor
Franz Kulhanek
Otto Pirmayer
Mathias Oswald
Original Assignee
Payer Elektroprodukte Gesellschaft M.B.H.
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 Payer Elektroprodukte Gesellschaft M.B.H. filed Critical Payer Elektroprodukte Gesellschaft M.B.H.
Publication of WO1995020340A1 publication Critical patent/WO1995020340A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0023—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers with rotating clamping elements

Definitions

  • the invention relates to a dehairing device with a housing and at least one rotating clamping device formed by a helical spring for detecting the hair to be removed and a drive for actuating the clamping device, the helical springs being arranged in each case between the jaws of a pair of pliers and the free leg of the pliers cooperate with controls for actuating the clamping device during the rotation thereof.
  • a device is already known from US Pat. No. 5,217,469, in which the clamping force of a pair of tweezers, which is mounted in a rotating head, is applied using a helical spring.
  • the opening movement of the tweezers takes place through interaction with control elements, and the closing movement of the tweezers is brought about by a helical spring.
  • Such a known design cannot be easily implemented in hair removal devices of the type mentioned at the outset for several reasons.
  • the spring which causes the closing movement of the helical spring must be made extremely strong, and a system in which two springs acting against one another using two helical springs tends to vibrate, which leads to a reliable closing counteract the clamping elements.
  • a relatively strong spring is required, which could not be easily arranged in the manner shown in US Pat. No. 5,217,469, since the space required for this is not available.
  • the invention now aims to provide a device of the type mentioned in the introduction, in which, regardless of manufacturing tolerances, the closing force of the clamping device formed by a helical spring can be applied in a predefined manner by a spring, so that manufacturing tolerances for the respectively available closing force are no longer decisive. Furthermore, the invention aims to provide such a design that the large spring force required for the closing movement can be safely applied without the structural dimensions having to be increased, and at the same time it is ensured that, regardless of the rotational speed, acceleration or deceleration processes, the desired closing force is available reliably and reproducibly.
  • the design according to the invention essentially consists in that the free legs of the pliers are acted upon by a spreading spring in a position in which the helical springs of the clamping device are compressed into their clamping position, that the control elements on or that of the spreading spring attack the facing outside of the leg (s), and that the spreading spring is designed as a torsion spring or leg spring and is arranged with an axis crossing the pivot axis of the pliers between adjacent pliers, the two ends of the spreading spring as radial extensions or legs are formed and act on the pliers between the free legs.
  • the closing force is determined exclusively by the force of the spreading spring and can thus be effective regardless of tolerances of the control elements.
  • the spreading spring is now designed as a torsion spring or leg spring and with the axis crossing the pivot axis of the pliers is arranged between adjacent pliers, on the one hand the necessary space for accommodating a correspondingly strong spring is made available without for which the dimensions have to be changed or increased, and it is also ensured by the orientation of the pivot axis of such a spring that the spring force is available regardless of the speed of rotation and of the acceleration and deceleration forces of the rotating head .
  • the spring force is applied via radial extensions or legs relative to the axis of the spreading spring, which act on the pliers between the free legs of the pliers, so that overall a relatively strong closing spring can be arranged in a simple manner due to the large space now available, At the same time, a particularly simple assembly and a high degree of operational reliability, which is independent of the rotational speed, are achieved.
  • the expansion spring according to the invention Due to its construction, in contrast to screw springs, the expansion spring according to the invention is distinguished by a much flatter force-displacement characteristic, so that a constant and high spring force can be exerted by the expansion spring over the required closing travel. Given the dimensions, such a spring force would not be readily achievable with a helical spring.
  • the spreading spring pivots the free legs of the pliers outwards relative to the pivot axis of the pliers, the clamping device in the form of the helical spring being closed at the same time, whereby the pivoting of the free ends of the pliers creates a pressure on the cam track and an axial force, which ⁇ che counteracts the contact pressure of the epilation head during epilation, so that any axial play that may be present is always compensated for.
  • the design is advantageously made such that the free legs of the pliers have recesses for receiving the free ends of the spreading spring or bolts with grooves for wear the support of the legs of the spreading spring. Bolts with a circumferential groove can hold the free legs of the spreading spring in their position in a particularly simple manner, and bolts of this type can simply be injected during the manufacture of the pliers.
  • control elements can be designed as an annular channel of a control disk with a clear cross-section which changes in the circumferential direction and into which the free legs of the pliers are immersed. Since there are no additional springs subject to the centrifugal force or acceleration forces in the area of the free legs of the pliers, which carry the clamping devices formed by helical springs, the free ends of the legs can be designed in a simple manner so that the free legs of the pliers Bear rollers or steel bolts which cooperate with the areas of the annular channel which are set to a smaller clear cross section, as a result of which the wear is substantially reduced. At the same time, a particularly simple determination of such roles is made possible at this point.
  • steel bolts are particularly advantageous because such steel bolts can maintain a particularly low coefficient of friction with respect to the control cam and at the same time enable particularly simple manufacture.
  • Steel bolts of this type which have a groove on their circumference for receiving the free legs of the spreading spring, can namely be produced in a uniform injection molding process with pliers parts made of plastic.
  • the design can advantageously be such that the spreading spring is placed on a mandrel with an axis that is essentially parallel to the axis of rotation between adjacent ten pliers is plugged in, with the mandrel advantageously having a radial projection over part of its circumference at its push-on end which overlaps the windings of the spreading spring.
  • the design according to the invention provides the possibility of applying the relatively large spring forces required for a secure closure of the clamping elements formed by helical springs without making the springs excessively heavy, while at the same time achieving a high degree of vibration stability with an extremely small space requirement.
  • FIG. 1 shows a side view, partly in section, through a depilatory device according to the invention
  • 2 shows an enlarged view of the hair removal device according to the invention in the direction of arrow II
  • 3 shows, on a further enlarged scale, a section along the line III through the head of the hair removal device according to the invention with an uncompressed spring
  • 4 shows a section along line IV of FIG. 2 in a position similar to FIG.
  • FIG. 3 shows a plan view of a modified arrangement of the spreading springs acting on the free legs of the pliers; 6 shows a section along the line VI-VI of Figure 5 and Figure 7 is a schematic partial view corresponding to Figure 4 of a modified design.
  • a motor 3 is mounted, which drives a head 6, which is rotatably mounted about an axis 5, via a schematically indicated gear arrangement 4 to rotate in the direction of arrow 7.
  • a gear arrangement 4 to rotate in the direction of arrow 7.
  • the rotating head which is shown in an enlarged representation in FIG. 2, there are a plurality of as Coil springs 8 formed clamping devices which extend in a substantially radial direction with respect to the axis of rotation 5, the longitudinal axes 9 of the individual coil springs extending essentially parallel to the surface 10 of the rotating head 6.
  • the coil springs 8 are arranged in the radial direction along their longitudinal axis 9 in a compressible and expandable manner, a coil spring 8 being shown in the expanded state in the illustration according to FIG.
  • adjacent coil springs 8 are shown on the one hand in the compressed and on the other hand in the expanded state.
  • the coil springs 8 of the clamping device are mounted in pliers-like jaws 11 which can be pivoted relative to one another about a schematically indicated axis 12.
  • the free legs of the pliers 11 are partially supported on a fixed control cam 13, the control cam being designed as an annular channel with a clear cross-section that changes in the circumferential direction, as will become clearer in particular from the following figures.
  • the rotating head 6 is mounted, for example, via a bearing sleeve 14, which is schematically indicated in FIG. 1, 8 guide devices in the form of combs 15 also being rotatably mounted between the compressible coil springs.
  • the individual coil springs 8 are each provided with guide devices 15 in the form of a comb arranged directly in front of the springs.
  • the combs 15 are arranged essentially parallel to the longitudinal axes 9 of the coil springs 8.
  • the position according to FIGS. 3 and 4 clearly shows the position for the compressible coil springs 8.
  • the Coil springs 8 are each mounted in the jaws 11 of a pair of pliers, the individual jaws 11 being able to be pivoted relative to one another about the pivot axis 12.
  • the free legs 16 of the pliers 11, each facing away from the helical spring 8, run on the fixed control cam 13 with the interposition of rollers 17, the pliers 11 or their free legs 16 in the region of FIG
  • the smallest radial extension or the smallest cross section bears against the control cam 13, so that the helical spring 8 in the pliers is opened against the force of an expansion or leg spring 18.
  • the pliers 11, which carry the compressible springs 8, are mounted, for example, in an essentially disk-shaped carrier 19, which has corresponding receiving openings for the pliers 11.
  • This disk-shaped carrier is connected in a rotationally fixed manner to the bearing sleeve 14, the bearing sleeve 14 being mounted on the axis or shaft 5.
  • the disk-shaped carrier 19 is overlapped by a pot-shaped outer part 20, which carries the guide device in the form of combs 15, the pot-shaped outer part 20 being connected to the carrier for the pliers 11.
  • the rotating head 6 is fixed on the shaft 5, for example, via a self-locking nut 21.
  • the coil springs 8 forming the clamping devices for removing the hair are urged into their closed position shown in FIG. 4 by the spreading springs or leg springs 18, so that the closing force of the coil springs 8 is only defined by the spreading springs 18 regardless of any manufacturing tolerances becomes.
  • the helical springs 8 are opened to receive hair to be removed by rolling the rollers 17 of the free legs 16 on the inner surface of the control track 13, as shown in FIG. 3.
  • the spreading springs 18 are each mounted on a mandrel 22, the axis 23 of which is essentially parallel to the axis of rotation 5 of the rotatable head 6 and extends substantially normal to the pivot axis 12 of the associated pliers 11.
  • Each mandrel 22 has a radial projection 24, which at least partially overlaps the windings of each spreading spring 18, so that a secure mounting of the spreading springs 18 is ensured.
  • the arrangement of the spreading springs 18 between adjacent pliers 11 can clearly be seen, so that the spreading springs 18, which exert a large spring force for closing the coil springs 8, are securely stored in the rotating head 6 without increasing the height of the head of the depilatory device can.
  • the legs 25 of the spreading springs are designed as radial extensions and are received in corresponding recesses 26 in the free legs 16 of the pliers 11.
  • a modified design of the pliers 11 is shown, in which the free legs 16 carry steel bolts 27.
  • the steel bolts 27 are slidably supported on the cam track 13 and have a circumferential groove 28, which ensures the correct positioning and securing of the position of the free legs 25 of the spreading springs 18.
  • the previously selected reference symbols have been retained unchanged in this modified embodiment.

Abstract

Un appareil dépilatoire comprend un boîtier (1) et au moins un système de serrage rotatif, formé par un ressort (8) hélicoïdal, destiné à saisir les poils à éliminer, ainsi qu'un mécanisme d'entraînement servant à actionner ledit système de serrage. Chaque ressort (8) hélicoïdal est monté entre les mâchoires d'un bec de pince (11) et les branches libres (16) de ladite pince (11) coopèrent avec des éléments de commande (13) pour actionner le système de serrage pendant qu'il tourne. Les branches libres (16) de la pince (11) sont actionnées par un ressort écarteur (18) pour se trouver dans une position où les ressorts hélicoïdaux (8) du système de serrage sont comprimés dans leur position de serrage. De plus, les éléments de commande (13) s'appliquent sur la face extérieure de la(des) branche(s)(16) faisant face au ressort écarteur (18). Ce dernier se présente sous forme de ressort de torsion ou de ressort à branches et est monté entre des pinces (11) adjacentes, son axe (23) croisant l'axe de pivotement (12) des pinces (11). Les deux extrémités (25) du ressort écarteur (18) se présentent sous forme de parties saillantes ou de branches radiales et s'étendent entre les branches libres (16) de la pince (11) sur lesquelles elles s'appliquent.
PCT/AT1995/000015 1994-01-27 1995-01-27 Appareil depilatoire WO1995020340A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT15394 1994-01-27
ATA153/94 1994-01-27

Publications (1)

Publication Number Publication Date
WO1995020340A1 true WO1995020340A1 (fr) 1995-08-03

Family

ID=3482948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1995/000015 WO1995020340A1 (fr) 1994-01-27 1995-01-27 Appareil depilatoire

Country Status (1)

Country Link
WO (1) WO1995020340A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000076359A1 (fr) * 1999-06-11 2000-12-21 Koninklijke Philips Electronics N.V. Appareil d'epilation a boitier de forme angulaire

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992001405A1 (fr) * 1990-07-21 1992-02-06 Braun Aktiengesellschaft Tete d'epilation pour appareil epilatoire commande par un moteur
DE4120014C1 (fr) * 1991-06-18 1992-06-17 Braun Ag, 6000 Frankfurt, De
WO1992015221A1 (fr) * 1991-03-05 1992-09-17 Barsever, Sol Dispositif depilatoire ameliore comportant des ressorts multiples et une tete rotative
US5217469A (en) * 1992-01-27 1993-06-08 Moshe Dolev Rotary head spring-loaded tweezer hair removal device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992001405A1 (fr) * 1990-07-21 1992-02-06 Braun Aktiengesellschaft Tete d'epilation pour appareil epilatoire commande par un moteur
WO1992015221A1 (fr) * 1991-03-05 1992-09-17 Barsever, Sol Dispositif depilatoire ameliore comportant des ressorts multiples et une tete rotative
DE4120014C1 (fr) * 1991-06-18 1992-06-17 Braun Ag, 6000 Frankfurt, De
US5217469A (en) * 1992-01-27 1993-06-08 Moshe Dolev Rotary head spring-loaded tweezer hair removal device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000076359A1 (fr) * 1999-06-11 2000-12-21 Koninklijke Philips Electronics N.V. Appareil d'epilation a boitier de forme angulaire

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