EP2292447B1 - Crayon rotatif à roue libre - Google Patents

Crayon rotatif à roue libre Download PDF

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Publication number
EP2292447B1
EP2292447B1 EP10174094.2A EP10174094A EP2292447B1 EP 2292447 B1 EP2292447 B1 EP 2292447B1 EP 10174094 A EP10174094 A EP 10174094A EP 2292447 B1 EP2292447 B1 EP 2292447B1
Authority
EP
European Patent Office
Prior art keywords
threaded
spindle
section
thread
outer thread
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.)
Active
Application number
EP10174094.2A
Other languages
German (de)
English (en)
Other versions
EP2292447A2 (fr
EP2292447A3 (fr
Inventor
Stefan Hornfeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Faber Castell AG
Original Assignee
Faber Castell AG
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 Faber Castell AG filed Critical Faber Castell AG
Publication of EP2292447A2 publication Critical patent/EP2292447A2/fr
Publication of EP2292447A3 publication Critical patent/EP2292447A3/fr
Application granted granted Critical
Publication of EP2292447B1 publication Critical patent/EP2292447B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/08—Writing-core feeding mechanisms with the writing-cores fed by screws
    • B43K21/085—Writing-core feeding mechanisms with the writing-cores fed by screws with a threaded propelling shank
    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/20—Pencil-like cosmetics; Simple holders for handling stick-shaped cosmetics or shaving soap while in use
    • A45D40/205—Holders for stick-shaped cosmetics whereby the stick can move axially relative to the holder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/08—Writing-core feeding mechanisms with the writing-cores fed by screws
    • B43K21/12—Writing-core feeding mechanisms with the writing-cores fed by screws with means preventing overwinding
    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/20—Pencil-like cosmetics; Simple holders for handling stick-shaped cosmetics or shaving soap while in use
    • A45D40/205—Holders for stick-shaped cosmetics whereby the stick can move axially relative to the holder
    • A45D2040/208—Holders for stick-shaped cosmetics whereby the stick can move axially relative to the holder the relative movement being made by a rotating action, e.g. effected by a screw
    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
    • A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw

Definitions

  • the invention relates to a rotary pin, wherein the feed of the mine, for example a cosmetic mine, is accomplished by means of a spindle drive.
  • a spindle drive Such a pin comprises a shaft in which a threaded spindle is mounted axially movable and rotationally fixed.
  • the threaded spindle has an at least catchy external thread, that is, only one thread tooth.
  • With its front end is a mine, about a cosmetic mine carrying lead holder connected.
  • a threaded member arranged which engages in the external thread of the threaded spindle.
  • the threaded spindle is automatically rotated by means of a device in the course of assembly and thereby brought into a rear end position in which it is maximally retracted into the shaft. Then, a mine is introduced via a front pin opening in the shaft and inserted into the designed in the manner of a cup or a pipe section lead holder. Due to the automatic rotation of the threaded spindle, it can not be practically realized that in the end position of the threaded spindle, the above-mentioned threaded element is located exactly at the front end of a thread or a thread groove. For this reason, the front end of the external thread is designed so that the threaded spindle can be further rotated in its rear end position.
  • the threaded elements are moved radially outward. It can, as also explained in more detail below, to a mechanical Impairment of the threaded elements or a spring element carrying them, which presses the threaded elements with a radial force component in the thread groove.
  • a pivot pin is known in which the shank or a forward portion of the threaded spindle has slots to allow radial deflection of a threaded member or the front portion so as to avoid damage to the threaded member.
  • the EP 1 371 303 A1 describes a pin in which an over-rotation or a bending of the threaded element is prevented by the fact that the threaded element itself is elastic and can be deformed in the event of over-rotation.
  • the object of the invention is to provide a rotary pin, which provides a remedy.
  • a pivot pin according to claim 1.
  • a pivot pin connects to the front end of the external thread a cylindrical, over the entire spindle circumference extending spindle portion, namely a freewheeling portion whose outer diameter corresponds to the core diameter of the external thread.
  • a pivot pin of the type in question comprises a sleeve-shaped shaft 1, a sleeve-shaped front part 2, a threaded spindle 3 and a refill holder 4.
  • Another component is a fixable on the front part, one of this protruding mine protective cap, to which, however, not discussed below will and in the attached pictures also not shown.
  • the interior 5 of the front part 2 is dimensioned in the radial direction so that the threaded spindle 3 is axially movable together with the at its front end rotatably mounted on a pin 11 lead holder 4.
  • the threaded spindle 3 has a front unthreaded section 6 and an adjoining section with a double-threaded external thread 7.
  • an opening 8 for the mine (not shown) is present.
  • the rear end of the threaded spindle 3 is radially widened and configured in the form of a cylindrical portion 10.
  • the cylinder section 10 is arranged axially displaceably in the shaft 1 with a form-fit that is effective in the direction of rotation.
  • the positive connection is formed, for example, by the fact that from the circumferential surface of the cylinder portion 10, two diametrically opposed studs 13 protrude, which in the corners 14 (FIG. Fig. 5 ) protrude a formed with a hexagonal inner cross section longitudinal portion 15 of the shaft 1 in.
  • At the rear end of the front part 2 are, in particular the perspective views Fig.
  • a spring tongue 17 is arranged.
  • the windows 16 each have two axially extending and two circumferentially extending edges 18 and 19, respectively.
  • the spring tongues 17 are formed with their base on the closer to the front end of the front part 2 arranged edge 19 '.
  • the free end 20 of the spring tongues thus has the rear end of the shaft or to the rear.
  • a threaded element 23 is formed in each case, which projects radially inwardly and engages in the assembled state in the first and the second thread groove 24a, b of the external thread 7.
  • the clear width 25 ( Fig. 10 ) between the threaded elements 23 is slightly larger than the largest outer diameter of the spindle 3, in particular as the outer diameter 26 (FIG. Fig. 12 ) of the external thread 7.
  • the assembly of the pivot pin is largely automatic, with the first connected to the lead holder 4 spindle 3 is inserted into the front part 2, which is easily possible due to the above-described dimensional ratios.
  • the introduction of the spindle 3 can for example be carried out with vertical alignment of the front part 2, so that the spindle alone by gravity in its nominal position ( Fig. 4 ).
  • the front part 2 equipped with the spindle 3 and the lead holder 4 is provided with a rear section 28 (FIG. Fig. 3 ) in the front end 27 ( Fig. 2 ) of the shaft 1 is inserted.
  • the spring tongues 17 have on their outer side a radially outwardly projecting projection 29.
  • the distance 30 ( Fig.
  • a refill is inserted into the cup-shaped front end of the refill holder 4, wherein previously the spindle by means of an automatic device in their in Fig. 6 shown starting position is rotated.
  • This position corresponds to the rear end position of the spindle 3.
  • the problem is that with the help of automatically working Device, with the front part 2 and shaft 1 are rotated against each other, not exactly such a rotational position can be achieved, in which the threaded elements 23 at the end of the external thread 7 and at the end of the respective thread grooves 24a, b are. It must therefore be ensured that the spindle in the end position acc. Fig. 6 can continue to rotate without thereby the threaded elements 23a, b and the spring tongues 17 are damaged.
  • the in Fig. 14 partially shown pivot pin corresponds in its basic structure to the above-described pivot pin.
  • the front end of the threaded spindle 103 has a cylindrical portion 160 into which the thread grooves 124a, b extend.
  • the cylindrical portion in the circumferential direction is divided into two by the thread grooves 124 a, b separate portions 161, 162.
  • the cylindrical portion 160 is bounded to the front by a radial shoulder 163 extending radially beyond its circumferential surface 138 and extending over the entire circumference of the portion 160.
  • the outer diameter 164 of the cylindrical portion 160 is greater than the core diameter 137 of the external thread 107 and smaller than the outer diameter 126.
  • the spindle 103 In the course of the pin assembly taking place rotation of the spindle 103 and the shaft 101 relative to the front part 102 and the spring tongues 117 in the direction of the arrow I, ie counter to the direction of the right-handed external thread 107, the spindle 103 is moved back axially in the direction of the arrow II until the threaded elements 123 are present at the radial shoulder 163. In a further rotation of the spindle 103 in the direction I, the threaded elements 123 are made the thread grooves 124a, b, which have a smaller depth in the cylindrical portion 160 than in the other external thread 107, moved out, so that they now the sub-areas 161, 162, which are parts of a cylinder jacket act.
  • the spring tongues 117 are deflected radially outwards by a distance corresponding to the difference D between the outer diameter 164 of the cylindrical portion 160 and the core diameter 137 of the outer thread 107, as shown by the arrows 39, in FIG Fig. 14 indicated.
  • the spring tongues 117 remain in the in Fig. 14 shown position in which at least their the threaded elements 123 supporting free ends 120 are subjected due to the radially outward deflection of a bending stress.
  • the threaded elements 123 are pressed with reduced force in the thread grooves 124a, b.
  • the spindle 3 of the rotary pin according to the invention also has a cylindrical portion, a freewheel portion 34.
  • the freewheeling section 34 adjoins the end of the external thread 7, extending over the entire circumference of the spindle.
  • the threaded spindle is moved axially in the direction of arrow II to the rear end of the pin, wherein the threaded elements 23 finally ascend on the peripheral surface of the freewheel section 34.
  • the outer diameter 36 of the freewheeling section 34 corresponds to the core diameter 37 of the external thread 7, ie the two diameters are either equal or the diameter difference is so small that a radial widening of the spring tongues 17 according to arrow direction 39 in Fig. 14 low and thus the described in the prior art fatigue effect does not occur or is negligible.
  • the spring arms 17 are in a state of tension corresponding to the state of use, so that fatigue phenomena, for example due to cold flow, can not occur.
  • the control cams 42 merge at their base in each case in a circumferentially extending, in the manner of a radial shoulder from the peripheral surface of the freewheeling portion 34 projecting connecting portion 48.
  • the control cam 42 are each associated with an end portion 40 of a thread tooth 41 a, b and project from the peripheral surface of the freewheel portion 34. They have, in each case cooperating with a threaded element 23, a running in the direction of the external thread 7 first run-on slope 43 and a running counter to the direction of the second run-on slope 44.
  • Gear direction is the direction of rotation of a thread to understand in which the thread rotates into a co-operating with him thread.
  • the thread teeth or the thread grooves - seen in the side view of the thread - rise to the right.
  • the control cams 42 extend in the axial direction at least as far toward the end section 40 that between them and the end section 40 an axial distance 46 (FIG. Fig. 19 ) which is smaller than the axial dimension or extent 47 (FIG. Fig. 20 ) of the threaded elements 23.
  • the threaded spindle 3 If, starting from the situation shown, the threaded spindle 3 is rotated further to the left, it is by cooperation of the end portions 40 with the threaded elements 23 by the distance s forward emotional.
  • the threaded elements 23 pass into the groove 45 present between the end section 40 and the first ramp bevel 43 (see also FIG FIGS. 20A to C ).
  • the end portions 40 pass through the threaded elements 23 (FIG. FIGS. 20C and D ) until finally the second ramps 44 impinge on the respective threaded elements 23 ( Fig. 20D ).
  • the result is an axial forward movement in the direction of arrow IV until again the situation of Fig. 20B is reached.
  • the threaded spindle 3 thus performs an axial pendulum motion between the positions. Figs. 20B and D with the amplitude s off.
  • the threaded spindle 3 relative to the threaded elements 23 in a clockwise rotation ( Fig. 21 ).
  • the control cam 42 with its first ramp 43 on the threaded elements 23, whereby the threaded spindle 3 in the feed direction or in the direction of arrow IV in Fig. 15 is moved.
  • the threaded elements 23 perform a relative oblique movement along the groove 45 located between an end portion 40 of a thread tooth 41 a, b and the first ramp 43.
  • a control cam 42 must extend at least as far as an end section 40 such that there is an axial spacing 46 between it and the control cam which is smaller than the axial dimension or extent 47 (FIG. Fig. 20D ) of the threaded element 23.

Claims (3)

  1. Crayon rotatif comprenant un fût (1) en forme de manchon et ayant une extrémité avant et une extrémité arrière, une broche (3) filetée, qui y est montée mobile axialement, qui en est solidaire en rotation et qui a au moins un filetage (7) extérieur à un seul filet, et au moins un élément (23) de filetage immobilisé en direction axiale et en rotation par rapport au fût (1) et engrenant dans le filetage (7) extérieur,
    caractérisé,
    en ce qu'à l'extrémité avant du filetage (7) extérieur se raccorde un tronçon de broche, à savoir un tronçon (34) de roue libre, cylindrique, s'étendant sur tout le pourtour de la broche et dont le diamètre (36) extérieur correspond au diamètre (37) de noyau du filetage (7) extérieur.
  2. Crayon rotatif suivant la revendication 1,
    caractérisé
    en ce qu'un tronçon (40) d'extrémité d'une dent (41a, b) de filetage s'étend dans le tronçon (34) de roue libre et en ce qu'il y a, à distance axiale du tronçon (40) d'extrémité, un bossage (42) de commande, en saillie de la surface (38) périphérique du tronçon (34) de roue libre, cunéiforme considéré en vue de côté de la broche filetée et ayant une première pente (43) s'étendant dans le sens du filet du filetage (7) extérieur et une deuxième pente (44) s'étendant dans le sens contraire du filet, dans lequel, entre la première pente (43) et le tronçon (40) d'extrémité, reste libre une rainure (45) recevant l'élément (23) de filetage et s'étendant dans le sens du filet du filetage (7) extérieur, et dans lequel le bossage de commande s'étend dans la direction axiale au moins si loin vers le tronçon (40) d'extrémité qu'il y a une distance (46) axiale entre lui et celui-ci, qui est plus petite que l'étendue (47) axiale de l'élément (23) de filetage.
  3. Crayon rotatif suivant la revendication 3,
    caractérisé par
    une broche filetée à deux filets et un bossage (42) de commande étant associé à chaque partie (40) d'extrémité d'une dent (41a, b) de filetage.
EP10174094.2A 2009-09-04 2010-08-26 Crayon rotatif à roue libre Active EP2292447B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009040134 2009-09-04
DE102009055240A DE102009055240A1 (de) 2009-09-04 2009-12-23 Drehstift

Publications (3)

Publication Number Publication Date
EP2292447A2 EP2292447A2 (fr) 2011-03-09
EP2292447A3 EP2292447A3 (fr) 2013-02-27
EP2292447B1 true EP2292447B1 (fr) 2016-10-26

Family

ID=43333223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10174094.2A Active EP2292447B1 (fr) 2009-09-04 2010-08-26 Crayon rotatif à roue libre

Country Status (4)

Country Link
US (1) US8696226B2 (fr)
EP (1) EP2292447B1 (fr)
DE (1) DE102009055240A1 (fr)
ES (1) ES2605580T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5895261B2 (ja) * 2013-07-29 2016-03-30 株式会社トキワ 塗布材押出容器
CN108523379A (zh) * 2018-06-22 2018-09-14 广州琦莉化妆品有限公司 三色活动修容笔
US11382400B2 (en) 2018-08-10 2022-07-12 Go Products Co. Material applicator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1371303A1 (fr) * 2001-03-06 2003-12-17 Suzuno Kasei Kabushiki Kaisha Contenant de baton de produit cosmetique

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546195A (en) * 1948-11-16 1951-03-27 Chase Brass & Copper Co Lipstick container
US5549404A (en) * 1993-03-29 1996-08-27 Kotobuki & Co., Ltd. Stick-shaped material drive container and supply cassette
US5547300A (en) * 1993-12-20 1996-08-20 Powers; Ronald J. Cosmetic pencil with threads positioned on flexible arms
JP3723586B2 (ja) * 1994-02-23 2005-12-07 株式会社壽 棒状物繰り出し容器
DE19630906A1 (de) * 1996-08-01 1998-02-05 Faber Castell A W Weichminenstift
JP3724769B2 (ja) * 1997-12-09 2005-12-07 株式会社壽 回転式棒状物繰り出し具の中ねじ部材
JP2001321224A (ja) * 2000-05-18 2001-11-20 Suzuno Kasei Kk カートリッジ式棒状化粧材繰出容器
EP1230868B1 (fr) * 2001-02-12 2005-05-11 UHU GmbH & Co. KG Bâton adhésif
JP3326168B1 (ja) * 2001-08-21 2002-09-17 鈴野化成株式会社 カートリッジ式棒状化粧材繰出容器
JP3959277B2 (ja) * 2002-01-10 2007-08-15 株式会社壽 棒状物繰り出し具
JP3965391B2 (ja) * 2004-02-17 2007-08-29 株式会社トキワ 棒状化粧料繰出容器
US7044667B2 (en) * 2004-03-31 2006-05-16 Tokiwa Corporation Stick-shaped cosmetic material feeding container
JP4257281B2 (ja) * 2004-10-04 2009-04-22 株式会社トキワ 棒状化粧料カートリッジ
DE102005028932B4 (de) * 2005-06-22 2010-03-18 Schwan-Stabilo Cosmetics Gmbh & Co. Kg Auftraggeräte mit kurzem Twist-off-Schoner
DE202005009819U1 (de) * 2005-06-22 2006-10-26 Schwan-Stabilo Cosmetics Gmbh & Co. Kg Auftraggeräte mit kurzem Twist-off-Schoner
KR20070068971A (ko) * 2005-12-27 2007-07-02 가부시키가이샤 돔보 엔피쓰 고형풀 조출용 용기
JP2008022984A (ja) * 2006-07-19 2008-02-07 Tokiwa Corp 棒状化粧料繰出容器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1371303A1 (fr) * 2001-03-06 2003-12-17 Suzuno Kasei Kabushiki Kaisha Contenant de baton de produit cosmetique

Also Published As

Publication number Publication date
US8696226B2 (en) 2014-04-15
EP2292447A2 (fr) 2011-03-09
DE102009055240A1 (de) 2011-03-24
US20110058887A1 (en) 2011-03-10
EP2292447A3 (fr) 2013-02-27
ES2605580T3 (es) 2017-03-15

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