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EP1764011B1 - Manche pour brosse à dent - Google Patents

Manche pour brosse à dent Download PDF

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Publication number
EP1764011B1
EP1764011B1 EP20050020182 EP05020182A EP1764011B1 EP 1764011 B1 EP1764011 B1 EP 1764011B1 EP 20050020182 EP20050020182 EP 20050020182 EP 05020182 A EP05020182 A EP 05020182A EP 1764011 B1 EP1764011 B1 EP 1764011B1
Authority
EP
European Patent Office
Prior art keywords
handle
toothbrush
recesses
head
cavity
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 - Lifetime
Application number
EP20050020182
Other languages
German (de)
English (en)
Other versions
EP1764011A1 (fr
Inventor
Armin Bärtschi
Christian Hilfiker
Martin Zwimpfer
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.)
Trisa Holding AG
Original Assignee
Trisa Holding 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 Trisa Holding AG filed Critical Trisa Holding AG
Priority to EP20050020182 priority Critical patent/EP1764011B1/fr
Priority to PCT/CH2006/000464 priority patent/WO2007030958A1/fr
Priority to US11/992,100 priority patent/US8382208B2/en
Priority to EP06775157.8A priority patent/EP1924167B1/fr
Publication of EP1764011A1 publication Critical patent/EP1764011A1/fr
Application granted granted Critical
Publication of EP1764011B1 publication Critical patent/EP1764011B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates to a handle for a toothbrush, a toothbrush with such a handle, a method for manufacturing the handle and a method of manufacturing the toothbrush with the handle according to the preambles of claims 1, 17, 25 and 37.
  • Handles are well-known items that serve for improved handling of toothbrushes and brushes.
  • a toothbrush with such a handle is for example in the EP-B-1119272 described.
  • the handle is designed as a two-part hollow body and has for this purpose at least two handle parts made of an elastically yielding material, which enclose a cavity in the form of a shell.
  • the two-part construction of the handle has the disadvantage that an additional operation for joining the handle parts must be introduced and thereby increases the cycle time in the manufacture of such a toothbrush, which in turn leads to increased manufacturing costs.
  • Packaging in particular group packages for toothbrushes, are also well known.
  • a group packaging is in the WO-A-01/70590 described.
  • a number of toothbrushes are stored in a common plastic blister cap, which is closed at the rear by a blister carrier.
  • Blister covers also short blisters
  • the blister cap and the blister carrier of a single packaging are perforated circumferentially, so that each individual packaging can be removed.
  • the described group packaging is only suitable for one-sided presentation of the toothbrushes from the side of the blister hood. The removal of the individual packaging is associated with a considerable effort to sever the circumferential perforation.
  • Object of the present invention is to provide a handle for a toothbrush and a toothbrush, which is particularly light but bulky and therefore easy to handle and can be produced inexpensively in a short life on an injection molding machine at low material costs.
  • the toothbrush should also have a head that supports the cleaning and massage function of the toothbrush.
  • the object is achieved by a handle for a toothbrush, a toothbrush with such a handle, a method for producing the handle and a method for producing a toothbrush with the handle according to claims 1, 17, 25 and 37.
  • the inventive handle for a toothbrush is equipped with a one-piece handle body whose wall surrounds a cavity in the elongated handle body.
  • the wall is opened by at least two staggered and through the wall through recesses which open in the cavity.
  • Through the inner cavity creates a voluminous and at the same time ergonomically advantageous handle with a particularly low weight, due to the reduced use of materials, compared to a toothbrush with a solid, ie with material "filled", handle, within a short cycle time, ie life on the injection molding machine is particularly inexpensive to produce.
  • the low material thickness of the wall reduces the risk of sink marks and inclusions and the effect of heat shrinkage, which in turn leads to increased surface quality and consistent product quality.
  • the toothbrush according to the invention is equipped with a toothbrush body which, in addition to a head with bristles and a neck, has such a handle.
  • the toothbrush body is manufactured together with the handle in a single or multi-component injection molding process.
  • an injection molding tool with finger elements is used in the injection molding process for plastic.
  • the finger elements touch and prevent at these points of contact the flow of plastic.
  • the solidified plastic material thereby Recesses formed, which are interconnected and form a coherent cavity in the handle body.
  • Recesses formed which are interconnected and form a coherent cavity in the handle body.
  • a neck and a head made of plastic are injection-molded together with the handle.
  • a blister carrier of a single package is attached only in one section to the group carton.
  • a dividing line is arranged so that the individual packages can be easily removed from the group package without destroying the group package.
  • Each individual packaging is, like the group packaging, also equipped with a fastening recess, so that it can also be presented hanging individually after removal from the group packaging. This is particularly advantageous if the group packaging contains personal care devices of different colors, models, degrees of hardness or even with different accessories and the buyer or the sales staff to be given the opportunity to remove individual packaging and possibly re-presented elsewhere compiled.
  • a head for a toothbrush is opposite one with its bristled top Bottom continuous Zonneaus originallyung equipped, the gap-like and on the top (26) of the head (16) is S-shaped curved.
  • the tongue recess divides the head into two tongue elements which are deflectable against each other and can be equipped with different flexibility.
  • Each of the tongue elements is equipped with bristles and / or massage and / or cleaning elements. Due to the smaller dimensions of the individual tongue elements in relation to the entire head and their greater flexibility, the tongue elements adapt better to the contours in the oral cavity and thereby support the cleaning and massage function of the toothbrush.
  • a hollow handle body 13 of the handle 12 is formed as part of a toothbrush body 14, which is occupied at its spoon-like flattened head 16 with bristles 18. About a neck 20 of the handle body 13 is connected to the head 16.
  • the handle 12 serves to hold the toothbrush 10 with one hand and occupies between 45% and 65% of the total length of the toothbrush 10.
  • the handle 12 has an elongated, ellipsoidal outer contour and extends from a free, the head 16 opposite end on a hand rest section 22 and a thumb rest 24 to the neck of the neck 20.
  • the total length of the handle 12 is between 80 mm and 140 mm, preferably between 110 mm and 120 mm.
  • the handle 12 is formed by its voluminous and rounded shape ergonomically particularly advantageous and supports easy and comfortable use of the toothbrush 10.
  • the total length of the toothbrush 10 is between 120 mm and 230 mm, preferably 190 mm to 200 mm.
  • Fig. 1 and Fig. 3 are shown on the bristles 18 occupied top 26 or on the opposite bottom 28 rounded, in Substantially rectangular and lowered recesses 30 formed in a wall 32 of the handle body 13.
  • the recesses 30 are lined up in the hand support portion 22 along the longitudinal axis of the handle body 13 at almost equal distances from each other.
  • By offset on the top 26 and the bottom 28 opposite recesses 30 rectilinear passages can be formed through the handle body 13 therethrough.
  • the visible on the top 26 and bottom 28 width of the recesses 30 is in each case adapted to the circumference of the handle body 13 at their respective position.
  • the recesses 30 form due to the ellipsoidal outer contour of the handle 12, in particular in the side view or in longitudinal section visible indentations 34.
  • the open to the top 26 recesses 30 and recesses 34 are not only in the circumferential direction, but also in the longitudinal direction of the handle 12 with respect to the opposite recesses 30 which are open to the bottom 28, arranged offset.
  • a rounded, rectangular embossing field 38 is arranged between the indentations 34 of the upper side 26 and the lower side 28.
  • This stamping field 38 is used for labeling, preferably with manufacturer or type specifications. Due to the recesses 30, which are open to the top 26 and bottom 28 of the toothbrushes 10, it is not possible To arrange the embossing field 38 on these toothbrush sides without creating a new accumulation of material. For this reason, the embossing panel 38 is placed on the side wall 32. This design requires the use of a side shifter when manufactured in an injection molding tool.
  • the recesses 30 or caused by them in the wall 32 indentations 34 are spaced apart by webs 40.
  • On the top 26 are at the in Fig. 1 to Fig. 4 embodiment shown eight webs 40 and on the bottom 28 nine webs 40 are formed. Alternatively, however, one to twelve webs 40, on the underside 28 one to thirteen webs 40 may be formed on the upper side 26.
  • the webs 40 on the upper side 26 of the toothbrush 10 preferably have almost the same extent in the longitudinal direction of the handle body 13. This extent (or width) is on the upper side 26 1.5 mm to 6 mm, preferably 2 mm to 4.5 mm , On the opposite underside 28, the webs 40 have a width between 1 mm and 7 mm, preferably between 2 mm and 5.5 mm.
  • the material thickness of the webs 40 is perpendicular to the longitudinal axis of the handle body 13 measured 1 mm to 5.5 mm, preferably 2 mm to 4 mm.
  • the material thickness is, as in Fig. 4 shown on both sides of the handle body 13 almost constant.
  • the recesses 30 open after passing through the wall 32 in a continuous cavity 42.
  • the cavity 42 is, as well as the handle body 13 itself, elongated and extends almost along the longitudinal axis of the handle body 13.
  • the cavity 42 is through the recesses 30 open to the environment. In its longitudinal end portions it is on the one hand by the thumb rest 24 and on the other hand by a rounded end piece 44, on which, as in Fig. 3 shown, one of the manufacture of the toothbrush 10 resulting injection point 46 is limited.
  • the tail 44 may be placed in the cavity 42, for example, a compressible ball of soft material may be inserted into the cavity 42 which moves in use.
  • transverse ribs 48 In the cavity 42 are transverse to the longitudinal axis of the cavity 42 oriented and each pairwise conically converging transverse ribs 48 visible. These transverse ribs 48 are due to the manufacturing process, which will be described later in detail.
  • the transverse ribs 48 each open into the webs 40 of the top 26 and the bottom 28, which are formed offset from one another along the longitudinal direction of the handle body 13.
  • These transverse ribs 48 make it possible to adjust / define the flexibility of the grip body 13 surrounding the hollow space 42. By changing the angularity, the material thickness and the size, the flexibility / stability of the grip body 13 can be fundamentally influenced.
  • Fig. 5 is a cross section of the handle 12 of FIG Fig. 1 to Fig. 4 shown toothbrushes 10 along in Fig. 4 drawn sectional plane V - V shown.
  • the inner contour of the wall 32 and thus the cavity 42 has a nearly circular cross section.
  • the truncated wall 32 has a substantially constant material thickness in almost all of the trimmed area. It is, as in the webs formed in her 40, preferably 1 mm to 5.5 mm, preferably 2 mm to 4 mm.
  • the truncated recess 30 is formed like a blind hole and has a rounded recess bottom 50.
  • the handle body 13 may be formed of soft or hard material or a combination of soft and hard material.
  • the continuous side sections 36 and walls 32 of the toothbrush 10 are used as distribution channels for the liquid plastic, in particular for a distribution of the soft material, which is preferably injected after the hard material.
  • the transverse webs 40 are injected from soft material or a combination of hard and soft material.
  • Fig. 6 is another embodiment of a head 16 for in Fig. 1 to Fig. 5 shown toothbrush 10 shown.
  • This is also designed with recesses 30 and webs 40.
  • the webs 40 on the bottom 28 of the head 16 as tongue cleaning ribs 56, which can serve on the one hand a tongue cleaning or a massage function formed.
  • On top of bristles 18 top 26 of the head 16 soft elastic massage and / or cleaning elements 58 are also arranged.
  • the arrangement of the bristles 18 and the massage and / or cleaning elements 58 takes place respectively on the webs 40 of the head 16.
  • This embodiment shows one of the versatile applications of the present technology with mutually offset recesses 30.
  • the technology can be applied in the complete toothbrush body 14. This means that in addition to their application in the handle 12 also in the neck 20, head 16 and in a later described tongue element of the toothbrush 10 corresponding recesses 30, webs 40 and cavities 42 can be formed.
  • FIGS. 7 to 9 a toothbrush body 14 of a further particularly preferred embodiment of a toothbrush 10 according to the invention is shown.
  • the handle 12 elongated, along the longitudinal axis of the handle body 13 extending recesses 30 are formed in this embodiment.
  • Your recess floors 50 form on the bottom 28, in particular in FIGS. 8 and 9 is visible, two elongated webs 40.
  • On the handle body 13 laterally outside grip ribs 60 are integrally formed.
  • the handle body 13, as well as in particular the grip ribs 60 may be formed of soft material or hard material or a combination of soft and hard material.
  • a likewise elongated recess 30 visible on the in Fig. 9 shown underside 28 of the handle 12 .
  • the recess bottom 50 of this elongated recess 30 forms the curved on the top 26 to the outside and in FIGS. 7 and 8 visible, extending in the direction of the longitudinal axis of the handle body 13 web 40th
  • Fig. 10 is a section through the handle 12 along the in Fig. 8 shown sectional plane X - X shown.
  • the two recesses 30, which are open towards the upper side 26, are particularly visible with their two respective webs 40 on the underside 28 forming recesses 50.
  • the upper side 26 is essentially formed by the recess base 50 or the corresponding web 40 of the recess 30 which is open toward the lower side 28. Laterally outside two substantially semi-circular cut surfaces of the grip ribs 60 are visible.
  • the formed inside the handle 12 and in Fig. 10 With a dashed line delimited cavity 42 also has a nearly rectangular cross-section in this embodiment.
  • a toothbrush 10 is formed by an extending from the neck 20 to the head 16, from the top 26 to the bottom 28 continuous tongue recess 62 an elastically resilient tongue member 64.
  • the tongue recess 62 initially runs almost in a straight line along the longitudinal axis of the neck 20, then opens in a loop shape in the head 16 and again runs at least approximately parallel along the longitudinal axis of the neck 20.
  • the tongue recess 62 extends almost parallel to the outer contour of the head 16. This area is like a the tongue member 64 surrounding frame body 66, occupied with bristles 18.
  • the characteristic of the present tongue element 64 is that bristles 18 are mounted laterally on the tongue element 64 as well as on the frame body 66 and possibly in the longitudinal direction behind the tongue element 64-ie in the free end region of the head 16. This means that in a lateral view in the transverse direction of the head 16, both on the frame body 66, as well as on the tongue member 64 bristles 18 are arranged visible.
  • the tongue member 64 stands, as in Fig. 8 and Fig. 11 shown on the top 26 on the frame body 66.
  • the resulting distance, which is present between a bristle surface on the tongue element 64 and a bristle surface on the frame body 66, is between 0.3 mm and 3 mm, preferably between 0.5 mm and 1.5 mm.
  • the frame body 66 is represented by two semicircular cut surfaces.
  • the cross-section of the tongue recess 62 tapers from the bottom 28 to the top 26 to serve as a directional guide in returning the tongue member 64 to its rest position, which is unloaded from the outside.
  • the truncated tongue element 64 has a trapezoidal, almost rectangular cross-section.
  • Fig. 8 and Fig. 11 clearly show that equivalent thicknesses, both the frame body 66 as well as the tongue element 64 are formed, which brings production technical advantages.
  • the shape of the tongue element 64 is designed so that radii of curvature greater than 3 mm are used to form the To reduce the risk of injury when using the toothbrush.
  • the width of the tongue recess 62 is on the upper side 26 of the toothbrush 10 in the neck region between 0.3 mm and 2 mm, preferably between 0.5 mm and 1 mm, and increases to the apex of the tongue recess 62 to 1 mm to 2 mm, preferably on 1.1 mm to 1.4 mm.
  • the flexibility of the tongue member 64 and the frame body 66 can be influenced in various ways.
  • the material thicknesses, widths and geometric shapes of the respective bodies, as well as the material composition of hard and / or soft material are parameters that significantly influence the flexibility.
  • the frame body 66 is a combination of hard and soft material.
  • the tongue member 64 is preferably made of hard material.
  • Fig. 13 an alternative embodiment of a neck 20 and head 16 for a toothbrush 10 is shown.
  • the tongue element 64 is fixedly connected to the frame body 66 at a tongue vertex 68 on the head 16, so that a bridge-like formation of the tongue element 64 occurs.
  • the elastic deflectability of the tongue element 64 at its tongue vertex 68 with respect to the frame body 66 is reduced in this way.
  • This material bridge can be made of soft material, hard material or a combination of hard and soft material. If only hard material is used, the material thickness can be massively reduced at this point and, for example, a film hinge can be formed, so that some flexibility is still allowed.
  • FIGS. 41 to 44 The inventive handle 12 and the toothbrush body 14 of a toothbrush 10 according to the invention are produced together from plastic in an injection molding process. This procedure will be related later FIGS. 41 to 44 described in detail.
  • Fig. 12 is already shown a section through an injection molding tool 70 with a first tool half 72.1 and a second tool half 72.2.
  • the sectional plane through the injection molding tool 70 corresponds approximately to the in Fig. 8 with X - X designated cutting plane through the toothbrush body 14 Fig. 12 shown section through the injection molding tool 70, the negative mold of in Fig. 10 shown cross-section of the handle 12 Fig. 8 represents.
  • the two open to the top 26 of the toothbrush 10 recesses 30 are formed by two tapered finger elements 74. This touching and thereby excludes a flow of plastic, engages another finger element 74 between the two, the second tool half 72.2 belonging finger elements 74 a.
  • the contacting finger elements 74 in the finished handle 12 form the recesses 30 and the cavity 42.
  • a non-hatched cavity 88 which is filled with plastic during manufacture, determines the shape of the wall 32, including the webs 40 and the grip ribs 60.
  • tongue elements 64 are shown.
  • two tongue recesses 62 extending from the head end portion of the neck 20 to the free end portion of the head 16.
  • the tongue recesses 62 extend in the region of the head 16 at least almost parallel to each other.
  • the tongue member 64 is formed like a bridge, wherein the two opposite end portions of the tongue member 64 are each firmly connected to the frame body 66.
  • each two Kopfrillen 76 As in Fig. 14c shown extending at right angles to the tongue recesses 62 and congruent on the top 26 and the bottom 28 of the head 16 each two Kopfrillen 76.
  • the reduced between the Kopfrillen 76 material thickness forms two film-like hinges 78.
  • the film-like hinges 78 divide the head 16 in three elastic mutually deflectable head segments 80. A deflection of the head segments 80 against each other is limited by the film-like hinges 78 associated limiting elements 82.
  • the tongue member 64 is offset relative to the frame body 66 in height.
  • the bristles 18 fastened on the upper side 26 of the tongue element 64 protrude beyond the bristles 18 fastened to the frame body 66 and can thereby support the cleaning of interdental spaces.
  • Fig. 15 shows a further embodiment of a toothbrush 10 with a neck 20 and a head 16 similar to that in FIG Fig. 9 shown embodiment.
  • the tongue element 64 is fastened here laterally in the region of the neck 20 on the frame body 66 by means of two tongue webs 84.
  • These tongue webs 84 arranged almost centrally with respect to the longitudinal axis of the tongue element 64 cause a rocking effect when the tongue element 64 is loaded, as a result of which the cleaning and massage of the oral cavity is additionally assisted.
  • the distance of the tongue webs 84 from the separation point of the tongue element 64 in the neck region of the toothbrush 10 is between 35% and 65%, preferably 45% to 60% of the length of the tongue element 64.
  • a toothbrush 10 with rocker effect can be designed such that a plurality of tongue webs 84 are formed and the user by means of a severing of tongue webs 84 can adjust the flexibility or the rocker effect of his tongue element 64 itself.
  • the tongue webs 84 can be made exclusively of hard material, exclusively of soft material or a combination of hard and soft material.
  • FIG. 16 to FIG. 21 show specific design possibilities of tongue elements 64.
  • the loop area of the tongue recess 62 can be oval (in the head 16).
  • Fig. 16 rhombus-shaped ( Fig. 17 ), balloon-like ( Fig. 18 ) and / or a pictogram with rounded, angular and / or rectilinear segments ( Fig. 19 to 21 ) be formed.
  • Various designs of tongue elements 64 which may also be colored if necessary, improve the recognition of a particular toothbrush 10.
  • Fig. 13 - of the Tongue vertex 68 are connected to the frame body 66.
  • FIGS. 22 to 24 another embodiment of a multi-part head 16 is shown.
  • the head 16 is from the neck 20 to the free end of the head 16 with a in the plan views of FIGS. 22 and 23 visible, slit-like, S-shaped curved tongue recess 62 provided.
  • This tongue recess 62 forms two tine-like tongue elements 64, which are each provided with bristles 18 and are mutually independently deflectable.
  • the tongue recess 62 has along its entire length a nearly constant width of 0.7 mm to 1 mm, preferably from 0.8 mm to 0.9 mm.
  • the two tine-like tongue elements 64 are zonneausnaturalungsnch at an angle less than 20 °, preferably less than 8 °, to a gap perpendicular, which is substantially perpendicular to the top 26 and the bottom 28, bevelled or rounded.
  • the two tongue elements 64 can have different material thicknesses, as in FIG Fig. 24 visible, and have different topographies on the top 26 and / or bottom 28.
  • portions of a tongue element 64 protrude beyond the longitudinal axis of the head 16 in the direction of the opposite tongue element 64.
  • the longitudinal axis is surmounted by a maximum of 3 mm, preferably by a maximum of 2 mm.
  • the two tongue elements 64 preferably have different flexibilities with respect to the neck 20 or the handle 12 and thereby convey different contact pressures via the bristles 18 to the tissues or teeth of the oral cavity when using the toothbrush 10. These different flexibilities can be achieved by the tongue elements 64 have different cross-sections in their neck region on the neck 20 and / or have a different arrangement and / or different proportions or structures of hard and / or soft materials.
  • FIGS. 22 to 24 show head 16 possible in which the two tongue elements 64 are V-shaped to each other. Their longitudinal axes can protrude from the neck 20 at different angles with respect to the longitudinal axis of the head 16 and / or the tongue elements 64 can be inclined in cross-section about the longitudinal axis of the head 16 and thereby preferably a V-shaped top 26 tapering towards the common tongue recess 62 of the head 16 shape.
  • the respective angles between the upper sides 26 of the tongue elements 64 and the longitudinal center plane of the head 16, which extends substantially parallel between the upper side 26 and the lower side 28 of the head 16, preferably amount in each case less than 10 °. Such small angles are already sufficient to make the flexibility of the tongue elements 64 and thus the cleaning effect different.
  • the underside 28 of the toothbrush body 14 may be at least partially covered with a soft material at the head 16.
  • the soft material preferably forms massage and / or cleaning elements 58, as they are for example in Fig. 23 are shown. Since the two tongue elements 64 are flexibly deflectable against each other and can thus better adapt to the surfaces in the mouth, an improved massage and cleaning effect is achieved.
  • the bristle-carrying upper side 26 of the head 16 is preferably formed by hard material of the toothbrush body 14. To the toothbrush body 14 more plastics may be sprayed as hard material and / or soft material for the formation of massage and / or cleaning elements 58. These support and supplement the conventional bristles 18 in their cleaning function.
  • the handle 12 is provided with six arranged in a row along the longitudinal axis of the handle 12, substantially rectangular, lowered recesses 30. Their recess openings 54 are each enlarged in the direction of the end regions of the handle 12.
  • lateral recesses 30 are formed on the side of the handle 12 elongate, over almost the entire hand rest section 22 extending.
  • the recess bottoms 50 of these laterally arranged recesses 30 form, viewed from the upper side 26, two respectively pointed, circular-segment-like webs 40. These are shown as slightly curved and substantially parallel to the underside 28 in the side view of FIG Fig. 26 clearly visible.
  • further recesses 30 are formed on the handle 12, which are open to the bottom 28 and offset along the longitudinal axis of the handle 12 to the opposite them on the top 26 recesses 30 are arranged.
  • the staggered recesses 30 form and in turn lead into the cavity 42.
  • the surrounded by the webs 40 and recess walls 52 cavity 42 is in the sectional views of FIGS. 28 and 29 shown.
  • the figures show cross sections of the handle along the in FIGS. 26 and 27 Plotted sectional planes XXVIII - XXVIII and XXIX - XXIX.
  • the section plane XXVIII - XXVIII extends at right angles to the longitudinal axis of the handle 12 and intersects a recess 30 open towards the top 26.
  • the recess 30 is formed like a blind hole and bounded by recess walls 52 and the recess bottom 50, which forms the web 40.
  • the elongated, laterally arranged on the handle body 13 and also open to the top 26 recesses 30 are not laterally bounded outside by Ausappelungscolour 52. With the two recesses 30 open towards the bottom 28, they form angled passages 86.
  • the recess bottoms 50 of the laterally arranged, open to the top 26 Recesses 30 form webs 40 with a circular segment-shaped cross-sectional area. They can be made of soft material, hard material or a combination thereof.
  • the longitudinal axis of the centrally formed in the handle body 13 cavity 42 coincides with the longitudinal axis of the handle body 13.
  • the cavity 42 has, as in FIGS. 28 and 29 shown a substantially rectangular cross section.
  • the cutting plane XXIX - XXIX runs as in FIGS. 26 and 27 shown on the top 26 through a web 40 and on the bottom 28 through a recess opening 54 therethrough.
  • Fig. 30 is the two-part injection molding tool 70 for the preparation of the toothbrush 10 from FIGS. 25 to 29 shown in a sectional view.
  • the selected cutting plane corresponds to the one in FIGS. 26 and 27 with XXIX - XXIX designated cutting plane.
  • the in Fig. 30 shown sectional view of the injection mold 70 is a negative mold of the in Fig. 29
  • the finger elements 74 form in the finished handle 12, the recesses 30.
  • FIGS. 31 and 32 a further embodiment of a handle 12 according to the invention is shown.
  • the grooves 90 of the top 26 and the bottom 28 are congruent with each other.
  • staggered recesses 30 arranged in the grooves 90 .
  • the recesses 30 of the grooves open to the top 26 26 and the recesses 30 of the open towards the bottom 28 grooves 90 are, as in in Fig. 31 truncated area, offset from each other.
  • the cutting plane for the in Fig. 31 the area shown in section is in Fig. 32 denoted by XXXI - XXXI.
  • each other formed recesses 30 By offset from each other formed recesses 30 are offset from each other in the grooves 90 arranged webs 40 are formed, which in turn the in Fig. 31 surrounded by dashed lines cavity 42. As in Fig. 32 shown, the grooves 90 may be opened oval or formed like a line.
  • FIGS. 33 to 39 a further embodiment of a toothbrush 10 is shown.
  • both circumferential grooves 90, as well as oval elongated grooves 90 on the top 26 and the bottom 28 are formed.
  • This embodiment may be equipped with both a hollow handle 12 and a conventionally filled handle.
  • through-holes 92 which pass from the upper side 26 to the lower side 28, are formed. These through holes 92 may also be disposed in grooves 90.
  • the Handle 12 provided in the hand rest section 22 with an open to the bottom 28 Sacklochaus Principleung 94.
  • FIGS. 37 to 39 show cross sections of in FIGS. 33 to 36 shown toothbrush, wherein the respective cutting planes in Fig. 36 with XXXVII - XXXVII to XXXIX - XXXIX. Clearly visible are the centrally through the handle body 13 passing through holes 92. In the cross section of Fig. 39 is the bottom opening 28 towards blind opening 94 cut. In all three sectional views of FIGS. 37 to 39 are also on the top 26 and bottom 28 congruent opposing grooves 90 visible.
  • Fig. 40 shows a further embodiment of a toothbrush 10 according to the invention.
  • the construction of this embodiment is essentially analogous to that in FIG Fig. 1 to Fig. 5
  • the respectively open to the top 26 and bottom 28 recesses 30 are not aligned identically.
  • the recesses 30 provided with rectangular recesses 54 are each arranged about their longitudinal axes, which are aligned at right angles to the longitudinal axis of the handle body 13, rotated against each other. On the one hand, this increases the recognizability of a specific toothbrush 10 and, on the other hand, leads to a characteristic configuration of the cavity 42 formed by the recesses 30.
  • FIGS. 41 to 44 1 shows an injection molding tool 70 used for producing a handle 12 according to the invention or a toothbrush 10 according to the invention.
  • the injection molding tool 70 a first mold half 72.1, which in a plan view in Fig. 42 is shown, and a second tool half 72.2, which in a plan view in Fig. 41 is shown on.
  • the two tool halves 72.1 and 72.2 are used to make the in Fig. 1 to Fig. 5 shown toothbrush 10 with the in Fig. 41 respectively.
  • Fig. 42 shown front surfaces placed on each other to inject in an injection molding plastic components in the integrally formed after the folding of the two tool halves 72.1, 72.1 integral cavity 88. The injection of the plastic takes place via an in Fig.
  • Hard materials such as polypropylene (PP), polyester (PET), polyethylene (PE), polystyrene (PS), styrene-acrylonitrile (SAN) polymethylmethacrylate (PMMA), acrylobutadiene-styrene (ABS), etc., are used as plastic for spraying the toothbrush body 14 including the handle body 13 preferably polypropylene (PP) is used.
  • PP polypropylene
  • the plastic has a modulus of elasticity of 1000 N / mm 2 to 2400 N / mm 2 , preferably 1300 N / mm 2 to 1800 N / mm 2 .
  • Fig. 44 shown cross section along in Fig. 43 With XLIV - XLIV designated cutting plane, run the individual finger elements 74 each conically at an angle between 5 ° to 15 °, preferably of 10 °, and are aligned along a Entformungscardi E for separating the tool halves 72.1, 72.2.
  • the ring-segment-shaped cavity 88 in the sectional view forms the cavity 42 surrounding wall 32 on the finished handle body 13.
  • a finger head 102 of the finger elements 74 forms the later recess bottom 50 which spaces the opposing adjacent recesses 30 in the form of a web 40.
  • the corresponding cross section of the finished toothbrush body 14 is in Fig. 5 shown.
  • the finger elements 74 can be aligned at almost random angles with respect to the longitudinal axis of the cavity 88 and recesses 30 can be formed at any desired position in the grip body 13.
  • the recesses 30 in the hardened plastic body can be shaped as desired in relation to one another in the circumferential direction as well as in the longitudinal direction of the grip body 13.
  • the material thickness of the wall 32 is determined by the extent of the cavity 88 and the size of the finger elements 74 certainly. It can be adapted for different user groups according to the respective load. In addition to the size of the finger elements 74 and their shape can vary greatly and be adapted to the given needs. Their extent, however, should be chosen so that the stability of the entire handle body 13 is not excessively reduced.
  • the finger elements 74 may be configured not only to vary along the handle 12 from the recess 30 to the recess 30, but also to vary the cross section of each finger element 74 along its longitudinal direction.
  • cross-sectional shapes that are oval, circular, crescent-shaped, crescent-shaped, square, n-shaped or equipped with the outlines of animals or figures can be used.
  • the cavities 42 with different cross-sections for example, square, circular, crescent-shaped, sickle-shaped, oval, rectangular and n-shaped and are provided with the outlines of figures and animals are formed.
  • the material costs can be reduced and the cycle time, that is, the service life on the injection molding machine in the production of such a body, can be reduced since the injected plastic body cools faster.
  • the embossing field 38 is formed by a side slide, which must be pulled before demoulding mentioned. In the injection mold in FIGS. 41 and 42 this page slider is not shown. In comparison with the arrangement of the embossing field 38 on the toothbrush in Fig. 2 However, it can be concluded that this is arranged in the region of the handle 12 to be formed.
  • the Vorstosser as well as the ejector, press outside on the outside directed circumference on the webs 40 of the respective toothbrush side.
  • the Vorstosser cause the toothbrush body when opening the injection mold 70, that is, when separating the tool halves 72.1, 72.2, in a predetermined mold half 72.1, 72.2 adhere. For this purpose, they are removed from the mold during the opening of the injection molding tool 70 by means of the feeders from the one half of the cavity 88.
  • the ejectors finally cause the demoulding from the other tool half 72.1, 72.2.
  • each tool half 72.1, 72.2 are for this purpose two to fifteen, preferably two to eight Vorstosser or ejector, which are directed on the one hand on the webs 40, but on the other hand also in the neck and head region of the toothbrush to be sprayed 10 are arranged and at the demolding pressure on the respective bodies exercise so that the demolding can be completed.
  • the pre-and ejector move along the Entformungscardi E of the injection molding tool 70.
  • the Vorstosser and the ejector move parallel to Entformungscardi E but in opposite directions.
  • the Vorstosser move in Entformungscardi E, the ejector this direction.
  • the ejected plastic bodies are then preferably removed from the cavity 88 by a robot and either transferred into a further cavity, preferably the same injection molding tool 70 for molding further hard materials and / or soft materials, or removed from the mold for further processing outside the injection molding tool 70
  • the hollow or skeletal structure of the plastic body must be supported in a further cavity against the injection pressure during injection molding of further plastic materials.
  • the finger elements 74 already used in the production of the grip body 13 or the toothbrush body 14 are suitable for this purpose. They are in turn retracted into the cavity 42 in order to protect them from the penetration of the further plastic materials and at the same time to support the contour.
  • soft materials for forming soft elements on the handle 12 for example, the webs 40, the neck 20 or the head 16, for example, polyethylene (PE-LD, PE-HD), polyurethane (PUR) and preferably a thermoplastic elastomer (TPE) are used.
  • the Shore A hardness of the soft material used is preferably less than 90.
  • soft elements in the form of ribs and / or Nubs made of a soft material increase the comfort of use of the toothbrush 10 substantially, since liquid is removed by the surface topography generated and slipping of the hand from the handle 12 is avoided.
  • injection points for the soft material can also be selected in the recesses 30 or in the cavity 42. Preferably, however, this is selected on the outer surface in the rear third of the handle body 13.
  • the bristles 18 are conventionally made of polyamide (PA) or polyester (PBT) and can be placed together with soft-elastic massage or cleaning elements 58 in a bristle field whose length is between 15 mm and 35 mm, preferably between 24 mm and 30 mm become.
  • the bristle field is preferably at least partially equipped with conventional bristles 18.
  • the soft-elastic massage and cleaning elements 58 are preferably mounted on an elastically deflectable tongue element 64.
  • the head 16, and particularly the elastically deflectable tongue elements 64 must be housed in a headgear 104 as shown in FIGS. 45 to 51 is shown mechanically fixed.
  • the headgear 104 is initially shown without a clamped head 16.
  • the head holder 104 has a base plate 106, which is equipped on one side with two laterally movable fixing pins 108 and an angled clamping bracket 110. Between the fixing pins 108 and the clamping bracket 110, two clamping strips 112 are arranged, which in their shape and Material thickness are adapted to the tongue recesses 62. Also located between the clamping bars 112 is a clamping pad 114 projecting above the base plate 106 to support and position the tongue member 64 projecting above the frame body 66 in the toothbrush 10.
  • the clamping bracket 110 When inserted into the head holder 104 head 16 engages, as in FIGS. 47 and 48 shown, the clamping bracket 110 on the top 26 over the free end portion of the head 16, while the two fixing pins 108 by their minimum distance between them only the tapered neck 20, but not the widened head 16 can accommodate between them.
  • the distance between the locating pins 108 and the clamping bracket 110 is adapted to the length of the head 16.
  • the clamping bracket 110 is guided around the free end region of the head 16 in order to prevent a deflection of the head 16 about one of the fixing pins 108.
  • the terminal strips 112 engage from the bottom 28 in the tongue recess 62 and the Klemmpodest 114 supports the tongue member 64.
  • the tongue element 64 can be fixed to the clamping modem 114 during the bristling process by means of suction.
  • a suitable head holder 104 is in FIGS. 50 and 51 shown. Approximately in the center of the clamp 114 opens in this device, an open intake manifold 116. As in 51 shown when clamping the head 16, the tongue member 64 on the Klemmpodest 114 and thereby closes the intake manifold 116. In order to prevent lifting of the tongue member 64, a negative pressure is generated in the intake manifold 116.
  • the head 16 is fixed together in this arrangement by the clamp strap 110, the suction 116 and the movable fixing pins 108 for the bristles.
  • embossing or labeling of the handle 12 in the designated embossing field 38 is an embossing or labeling of the handle 12 in the designated embossing field 38 (see also Fig. 2 ).
  • embossing field 38 of the handle body 13 must be supported again in order to withstand the pressure of a stamping tool and thereby prevent deformation or even destruction of the handle 12.
  • the embossing field 38 is designed as a recessed into the wall 32 surface from which, for example, a relief relief stands out and this recessed area, but not beyond the outer contour of the handle 12 protrudes.
  • the embossing field 38 and possibly the Font relief are already produced during injection molding by means of side slides.
  • the depth of the embossing field 38 is variable and can thus be adapted to the rounded outer contours.
  • the embossing field 38 is preferably rectangular and has a size of 35 mm X 9 mm, preferably 27 mm X 6.25 mm. In this case, the longer side of the embossing field 38 is preferably aligned along the longitudinal direction of the handle 12.
  • the present method of making a handle 12 for a toothbrush 10 can also be used to make personal care handgrips 12 with a handle 12 and a treatment head, such as wet razors, hairbrushes, etc.
  • a treatment head such as wet razors, hairbrushes, etc.
  • the discussed embodiments of the handle 12 may also be used for these personal care products to optimize material usage and cycle times.
  • the application of the listed embodiments for heads 16, for example with tongue elements 64 or bridge-like tongue elements 64 preferably takes place in manual toothbrushes 10. However, use of such heads 16 in electric, rotating electric, vibratory or sonic toothbrushes is nevertheless possible.
  • FIGS. 52 to 56 packaged group packaging 118 are presented and presented.
  • group packaging 118 has eight individual packages 120, each with a toothbrush 10.
  • the group package 118 can also be used for 4, 6, 10 or 12 individual packages 120.
  • each Single package 120 is equipped with a blister carrier 122 and a blister cap 124.
  • the blister carrier 122 is preferably made of paper, cardboard, plastic material or a metal foil. In the case of a plastic material used, this is preferably the same material used for the blister cap 124. Accordingly, the blister carrier 122 and blister cap 124 may be made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polysterol (PS), polyethylene terephthalate (PET), and preferably polyvinyl chloride (PVC) or polyethylene terephthalate (PET).
  • the plastic material is preferably at least translucent or transparent.
  • the blister carrier 124 may further consist of two plastic layers between which, for example, a cardboard is inserted or welded. When using a metal foil as a blister carrier 122 is preferably used as the material aluminum.
  • Each individual package 120 which preferably receives a personal care device, in this case a toothbrush 10, is provided with a mounting recess 126, which is intended for the passage of a fastener, and allows a suspended presentation of the individual packaging 120.
  • the present group packaging 118 has the advantage that, in an overall presentation of many sales objects, each can be removed individually and in any order without destroying the remaining group packaging 118.
  • the individual packages 120 separated from the group package 118 can also be suspended separately and presented individually.
  • toothbrushes 10 of various colors, models, degrees of hardness, various accessories, spare heads for electric or manual toothbrushes, interdental products, hairbrushes, etc. may be mixed or presented as a group of similar products.
  • the blister carrier 122 of the individual packages 120 are rectangular in shape and separated from each other by a gap 128.
  • the blister carrier 122 are attached only with one of their shorter sides on the group carrier 130 and free on the other three sides. As a result, the individual packages 120 are much easier and more comfortable to extract from the group package 118.
  • a dividing line 132 is formed between the blister carrier 122 and the group carrier 130.
  • the dividing line 132 is perforated in order to be able to separate the individual packaging 120 from the group carrier 130 even more easily and without destroying the individual packaging 120 or the group packaging 118.
  • the group carrier 130 is also rectangular in shape and equipped with two further mounting recesses 126. By attaching the individual packages 120 along their shorter sides on a longer side of the group carrier 130 results in a comb-like arrangement.
  • the blister carriers 122 are made of the same material or the same sheet as the group carrier 130, but connected only by a perforated position.
  • the mounting recesses 126 of the group carrier 130 are designed as a single or double hole. They correspond to standardized "Euro" holes.
  • hooks, cords, wires or other fastening means preferably so-called “euro” hooks, can be guided for a suspended presentation.
  • the group carrier 130 has a fold line 134 that connects the two longer sides and runs parallel to the columns 128 in the middle.
  • the fold line 134 divides the group carrier 130 into two approximately equal parts.
  • the two parts of the group carrier 130 may be attached to each other.
  • This attachment can be done by means of different attachment media.
  • staples in particular metal staples, adhesives, rivets, welds and the like, can be used to fasten the two parts of the group support 130 back to back together or to fix them to one another.
  • FIG. 53 another embodiment of a group package 118 is shown.
  • six individual packs 120 are each fastened to a group carrier 130 via one of their shorter sides.
  • the group carrier 130 here has two fold lines 134 running parallel to one another.
  • the fold lines 134 also run parallel to the columns 128. They subdivide the group carrier 130 into three substantially equal parts, to which two individual packages 120 are assigned.
  • the presentation body 136 is tubular in shape and has a triangular outline.
  • Two adjacent parts of the folded group carrier 130 enclose an angle of 60 °.
  • the blister covers 124 of the individual packaging 120 are directed outwards and allow a three-sided presentation of personal care equipment.
  • fastening means in the form of threads 138 are respectively pulled and brought together on a hook 140. In this way, the tubular or tower-like presentation body 136 can be presented hanging.
  • Fig. 55 another embodiment of a group package 118 is shown.
  • pairs of individual packages 120 are attached to the frame-like surrounding group carrier 130 along one of their shorter sides.
  • the remaining pages of the Individual packages 120 are separated by columns 128 from each other or from the frame-like group carrier 130.
  • fold lines 134 which run parallel to the gaps 128 between the individual packages 118 are formed on the group carrier 130.
  • Each part of the group carrier 130 has a fastening recess 126 above the dividing lines 132.
  • triangular roof segments 142 are additionally formed between the fold lines 134.
  • Each of these roof segments 142 has a trapezoidal fixing strip 144 on one of its free sides.
  • Another fixing strip 144 is attached to the outside of the group carrier 130.
  • a tower-like presentation body 136 results.
  • the presentation body 136 is in Fig. 56 shown and extends due to the equally spaced folding lines 134 above a square outline.
  • the roof segments 142 are likewise angled relative to one another about the further fold lines 134 formed between them and the group carrier 130 such that a closed, tapered roof 146 is formed.
  • a closed, tapered roof 146 is formed.
  • adjacent roof segments 142 or parts of the group carrier 130 coming into contact with the fold can be fastened to each other.
  • This attachment increases the stability of the tower-like presentation body 136 and lets it stand upright on its own.
  • the presentation body 136 may be similar as in Fig. 54 shown with threads 138 are provided and hung on a hook 140 and presented four-sided.
  • presentation body 136 are conceivable, whose pages each have only one or more than two individual packages 120 and / or their group support 130 is subdivided by further fold lines 134 in a larger number of parts, so that by folding the group support 130 presentation body 136 with a n-shaped plan, where n may preferably take the values 3, 4, 5, 6, 7 or 8.

Landscapes

  • Brushes (AREA)

Claims (38)

  1. Manche pour brosse à dents (10), présentant un corps de préhension allongé (13) avec une cavité (42) entourée par une paroi (32), caractérisé en ce que le corps de préhension (13) est réalisé d'une seule pièce et la paroi (32) présente au moins deux évidements (30) la traversant, qui sont disposés de manière décalée l'un par rapport à l'autre et qui débouchent dans la cavité (42).
  2. Manche selon la revendication 1, caractérisé en ce que les évidements (30) sont disposés de manière décalée les uns par rapport aux autres dans la direction périphérique du corps de préhension (13).
  3. Manche selon la revendication 2, caractérisé en ce que les évidements (30) sont disposés de manière décalée les uns par rapport aux autres dans la direction périphérique du corps de préhension (13), de telle sorte qu'il se forme un passage rectiligne à travers la cavité (42).
  4. Manche selon la revendication 2 ou 3, caractérisé en ce que les évidements (30) sont disposés sur des côtés opposés du corps de préhension (13), de préférence de manière décalée au moins de pratiquement 180° dans la direction périphérique.
  5. Manche selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les évidements (30) sont disposés de manière décalée les uns par rapport aux autres dans la direction longitudinale du corps de préhension (13).
  6. Manche selon la revendication 4 et la revendication 5, caractérisé en ce que les évidements (30) formés du même côté sont disposés de manière décalée de préférence le long d'une ligne droite et à chaque fois dans la direction longitudinale du corps de préhension (13) par rapport aux évidements (30) formés sur le côté opposé ou de manière décalée dans la direction périphérique.
  7. Manche selon la revendication 5 ou 6, caractérisé en ce que des évidements (30) décalés les uns par rapport aux autres dans la direction longitudinale du corps de préhension (13) sont espacés les uns des autres par des nervures (40) de la paroi (32) et les nervures (40) présentent de préférence une épaisseur de matériau et/ou une étendue dans la direction longitudinale du corps de préhension (13) essentiellement identiques.
  8. Manche selon la revendication 7, caractérisé en ce que la nervure (40) et les parois (32) présentent une épaisseur de matériau au moins pratiquement constante de 1 mm à 5,5 mm, de préférence de 2 mm à 4 mm.
  9. Manche selon la revendication 7 ou 8, caractérisé en ce que la nervure (40) présente, sur un côté supérieur (26) sur lequel la brosse à dents (10) est garnie de poils (18), une étendue minimale dans la direction longitudinale du corps de préhension (13) de 1 mm à 6 mm, de préférence de 1,5 mm à 4,5 mm et les nervures (40) présentent sur un côté inférieur (28) opposé au côté supérieur (26) une étendue minimale dans la direction longitudinale du corps de préhension (13) de 1 mm à 7 mm, de préférence de 2 mm à 5,5 mm.
  10. Manche selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la cavité (42) est fermée au moins d'un côté dans la direction longitudinale du corps de préhension (13).
  11. Manche selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les évidements (30) et/ou les sections transversales de la cavité (42) sont ovales, circulaires, en forme de demi-lune, en forme de croissant, carrées et/ou polygonales à n côtés, et/ou présentent des pourtours de figurines et/ou d'animaux.
  12. Manche selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les évidements (30) d'un manche individuel (12) présentent des formes et/ou des dimensions différentes.
  13. Manche selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les évidements (30) présentent une forme similaire et sont adaptés de par leurs dimensions, en fonction de leur position sur le corps de préhension (13), à la périphérie du corps de préhension (13).
  14. Manche selon l'une quelconque des revendications 1 à 13, caractérisé en ce que la cavité (42) est réalisée sous forme allongée et l'axe longitudinal de la cavité (42) s'étend coaxialement par rapport à l'axe longitudinal du corps de préhension (13).
  15. Manche selon l'une quelconque des revendications 1 à 14, caractérisé en ce que le corps de préhension (13) présente sur son contour extérieur arrondi, en position latérale, de préférence d'un côté ou des deux côtés, une zone de marquage (38) pour des inscriptions.
  16. Manche selon l'une quelconque des revendications 1 à 15, caractérisé en ce que le corps de préhension (13), respectivement les nervures (40) sont fabriqués en matériau dur, en matériau souple ou en une combinaison de matériaux durs et souples.
  17. Brosse à dents comprenant un corps de brosse à dents (14) qui est muni d'un manche (12) selon l'une quelconque des revendications 1 à 16, qui présente des évidements (30) et une cavité (42), avec un col (20) se raccordant au manche (12) et avec une tête (16) disposée à l'opposé du manche (12) au niveau du col (20), laquelle tête est garnie de poils (18) sur son côté supérieur (26), caractérisée en ce qu'un élément de langue élastique (64) est formé par au moins un évidement de langue (62) continu depuis le côté supérieur (26) jusqu'au côté inférieur opposé (28) dans la tête (16) et/ou le col (20), lequel élément de langue peut être dévié par rapport à un corps formant cadre (66) subsistant.
  18. Brosse à dents selon la revendication 17, caractérisée en ce que les poils (18) sont montés sur l'élément de langue (64) et/ou sur le corps formant cadre (66).
  19. Brosse à dents selon la revendication 17 ou 18, caractérisée en ce que l'élasticité de l'élément de langue (64) et du corps formant cadre (66) peut être ajustée indépendamment l'un de l'autre par différentes épaisseurs de matériau et combinaisons de matériaux durs et/ou souples.
  20. Brosse à dents selon l'une quelconque des revendications 17 à 19, caractérisée en ce que des éléments de massage et/ou de nettoyage en caoutchouc élastomère (58) sont disposés sur l'élément de langue (64).
  21. Brosse à dents selon l'une quelconque des revendications 17 à 20, caractérisée en ce que la largeur de l'élément de langue (64) dans la région du col (20) est comprise entre 1,5 mm et 3,5 mm, de préférence entre 2,0 mm et 3,0 mm, et dans la région de la tête (16) entre 5,5 mm et 8,5 mm, de préférence entre 6 mm et 7 mm.
  22. Brosse à dents selon l'une quelconque des revendications 17 à 21, caractérisée en ce que deux évidements de langue (62) s'étendent depuis le col (20) jusqu'à la tête (16) et forment en l'occurrence un élément de langue de type pont (64).
  23. Brosse à dents selon l'une quelconque des revendications 17 à 22, caractérisée en ce que l'élément de langue (64) est connecté au corps formant cadre (66) par le biais d'une nervure de langue flexible (84).
  24. Brosse à dents selon l'une quelconque des revendications 17 à 23, caractérisée en ce que l'évidement de langue (62) est formé de manière périphérique dans la tête (16) et de manière interrompue au niveau du col (20) et de ce fait une extrémité libre est réalisée dans la tête (16) et une extrémité fixe au niveau du col (20).
  25. Procédé de fabrication d'un manche pour une brosse à dents (10) selon l'une quelconque des revendications 1 à 16, dans lequel de la matière plastique est injectée dans un procédé de moulage par injection dans une cavité rattachée (88) d'un outil de moulage par injection (70), caractérisé en ce que la cavité (88) est limitée en partie par des éléments de doigts (74) qui sont en contact, dans l'état fermé de l'outil de moulage par injection (70), de manière en partie hermétique pour empêcher un passage de matière plastique et qui forment dans le manche fini (12) les évidements (30) et la cavité (42) dans le corps de préhension (13).
  26. Procédé selon la revendication 25, caractérisé en ce que les éléments de doigts (74) se terminent sous forme conique, de préférence suivant un angle de 5° à 15°, de préférence de 10°.
  27. Procédé selon la revendication 25 ou 26, caractérisé en ce que l'outil de moulage par injection (70) présente, dans une direction de démoulage (E), des moitiés d'outil séparables (72.1, 72.2) et les éléments de doigts (74) sont disposés fixement et en s'étendant dans la direction de démoulage (E) dans les moitiés d'outil (72.1, 72.2).
  28. Procédé selon la revendication 27, caractérisé en ce qu'un certain nombre d'éléments de doigts (74) sont réalisés en forme de peigne dans les moitiés d'outil (72.1, 72.2) et sont disposés de manière décalée les uns par rapport aux autres de telle sorte que dans l'état assemblé des moitiés d'outil (72.1, 72.2), les éléments de doigts (74) de la première moitié d'outil (72.1) viennent en prise entre les éléments de doigts (74) de la deuxième moitié d'outil (72.2) et soient en contact.
  29. Procédé selon la revendication 27 ou 28, caractérisé en ce qu'une moitié d'outil (72.1, 72.2) est à chaque fois munie de 2 à 10, de préférence de 2 à 5 éjecteurs, afin de soulever la partie en matière plastique solidifiée hors de la moitié d'outil (72.1, 72.2).
  30. Procédé selon la revendication 25 à 29, caractérisé en ce que les éléments de doigts (74) sont réalisés sous forme de coulisseaux ou de noyaux mobiles.
  31. Procédé selon l'une quelconque des revendications 25 à 30, caractérisé en ce qu'un certain nombre d'éléments de doigts (74) et/ou un élément de doigt (74) présentent ou présente à chaque fois le long de leur/son axe longitudinal différentes formes et dimensions en section transversale.
  32. Procédé selon l'une quelconque des revendications 25 à 31, caractérisé en ce que le corps de préhension (13) et en particulier aussi les nervures (40) sont fabriqués en matériau dur, en matériau souple ou en une combinaison de matériau dur et de matériau souple dans un procédé de moulage par injection.
  33. Procédé selon la revendication 32, caractérisé en ce qu'on utilise un point d'injection unique (46) pour l'injection du matériau dur et/ou du matériau souple dans une région d'extrémité libre du manche à former (12).
  34. Procédé selon la revendication 32 ou 33, caractérisé en ce que lors de l'utilisation d'une pluralité de matériaux durs et/ou de matériaux souples, les éléments de doigts (74) et/ou les coulisseaux sont à nouveau au moins en partie ou complètement rentrés avant l'injection d'un matériau supplémentaire afin de maintenir libre la cavité (42) et le corps de préhension (13) par rapport à la pression d'injection.
  35. Procédé selon l'une quelconque des revendications 25 à 34, caractérisé en ce que pendant le moulage par injection, une zone de marquage (38) est formée sur les surfaces latérales de la brosse à dents (10) au moyen d'un ou de plusieurs coulisseaux latéraux.
  36. Procédé selon l'une quelconque des revendications 25 à 35, caractérisé en ce qu'une inscription est marquée sur le manche (12) au moyen d'un procédé de marquage à chaud, des éléments de support étant rentrés dans les évidements (30) du manche (12) pour supporter le corps de préhension (13) pendant l'opération de marquage.
  37. Procédé de fabrication d'une brosse à dents selon l'une quelconque des revendications 17 à 24, comprenant un corps de brosse à dents (14) qui présente un manche (12) selon l'une quelconque des revendications 1 à 16, qui est fabriqué selon un procédé selon l'une quelconque des revendications 25 à 36, un col (20) se raccordant au manche (12) et une tête (16) disposée à l'opposé du manche (12) au niveau du col (20), laquelle tête est garnie de poils (18) sur un côté supérieur (26), caractérisé en ce que le corps de brosse à dents (14) est fabriqué avec le manche (12) présentant une cavité (42) d'une seule pièce dans un procédé de moulage par injection à partir d'un matériau dur ou d'un matériau souple ou d'une combinaison de matériaux durs et souples.
  38. Procédé selon la revendication 37, caractérisé en ce que pour garnir la tête (16) et en particulier l'élément de langue flexible (64) avec des poils (18), la tête (16) et en particulier l'élément de langue flexible (64) sont serrés à l'aide de moyens de serrage fixes et/ou pouvant être déviés (108, 110, 112, 114) et/ou au moyen d'une aspiration sur une plaque de base (106) ou un moule négatif de la tête (16).
EP20050020182 2005-09-16 2005-09-16 Manche pour brosse à dent Expired - Lifetime EP1764011B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20050020182 EP1764011B1 (fr) 2005-09-16 2005-09-16 Manche pour brosse à dent
PCT/CH2006/000464 WO2007030958A1 (fr) 2005-09-16 2006-08-28 Poignee de brosse, notamment de brosse a dents
US11/992,100 US8382208B2 (en) 2005-09-16 2006-08-28 Handle for a brush, in particular a toothbrush
EP06775157.8A EP1924167B1 (fr) 2005-09-16 2006-08-28 Poignee de brosse, notamment de brosse a dents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20050020182 EP1764011B1 (fr) 2005-09-16 2005-09-16 Manche pour brosse à dent

Publications (2)

Publication Number Publication Date
EP1764011A1 EP1764011A1 (fr) 2007-03-21
EP1764011B1 true EP1764011B1 (fr) 2013-04-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050020182 Expired - Lifetime EP1764011B1 (fr) 2005-09-16 2005-09-16 Manche pour brosse à dent

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113751A1 (de) * 2022-05-31 2023-11-30 Trisa Holding Ag Mundhygienemittel, insbesondere Zahnbürste
USD1108813S1 (en) * 2024-04-04 2026-01-13 Trisa Holding Ag Toothbrush handle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266195A (en) * 1938-12-13 1941-12-16 Hallock Robert Lay Toothbrush
ES2158208T3 (es) * 1991-03-27 2001-09-01 Smithkline Beecham Consumer Cepillo de dientes con zona de union flexible entre la cabeza y el bastidor circundante.
DE29817994U1 (de) * 1998-10-08 1999-04-22 Trisa Holding Ag, Triengen Zahnbürste
MXPA02009228A (es) * 2000-03-23 2003-03-12 Colgate Palmolive Co Charola de exhibicion de cepillo de dientes.
DE10219516A1 (de) * 2002-04-30 2003-11-20 Braun Gmbh Verfahren zum Herstellen einer Zahnbürste mit geteiltem Bürstenkopf

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EP1764011A1 (fr) 2007-03-21

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