EP1764011A1 - Manche pour brosse à dent - Google Patents

Manche pour brosse à dent Download PDF

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Publication number
EP1764011A1
EP1764011A1 EP05020182A EP05020182A EP1764011A1 EP 1764011 A1 EP1764011 A1 EP 1764011A1 EP 05020182 A EP05020182 A EP 05020182A EP 05020182 A EP05020182 A EP 05020182A EP 1764011 A1 EP1764011 A1 EP 1764011A1
Authority
EP
European Patent Office
Prior art keywords
handle
toothbrush
head
recesses
tongue
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.)
Granted
Application number
EP05020182A
Other languages
German (de)
English (en)
Other versions
EP1764011B1 (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 EP06775157.8A priority patent/EP1924167B1/fr
Priority to US11/992,100 priority patent/US8382208B2/en
Priority to PCT/CH2006/000464 priority patent/WO2007030958A1/fr
Publication of EP1764011A1 publication Critical patent/EP1764011A1/fr
Application granted granted Critical
Publication of EP1764011B1 publication Critical patent/EP1764011B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 of manufacturing the handle, a method of manufacturing the toothbrush with the handle, a group packaging for a number of personal care appliances and a head of a toothbrush according to the The preambles of claims 1, 17, 25, 37, 39 and 47, respectively.
  • 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 to provide a suitable group packaging for a personal care device, such as this toothbrush, from which the individual packages can be easily removed and which is suitable for a multi-page presentation.
  • a handle for a toothbrush a toothbrush with such a handle, a method of manufacturing the handle, a method of making a toothbrush with the handle, a group package for a number of personal care appliances and a head of a toothbrush according to the claims 1, 17, 25, 37, 39 and 47 solved.
  • 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 packaging is fastened 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 according to the invention is opposite to one from 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 relative 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.
  • the recesses 30 form visible indentations 34.
  • the recesses 30 or indentations 34 which are open to the upper side 26 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, 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.
  • 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 shown in Fig. 4, 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, like 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 shown in Fig. 3, one of the manufacture of the toothbrush 10 resulting injection point 46 is limited.
  • objects 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 shows a cross section of the handle 12 of the toothbrushes 10 shown in FIGS. 1 to 4 along the 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 shows a further embodiment of a head 16 for the toothbrush 10 shown in FIGS. 1 to 5 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 show a toothbrush body 14 of a further particularly preferred embodiment of a toothbrush 10 according to the invention.
  • the handle 12 elongated, along the longitudinal axis of the handle body 13 extending recesses 30 are formed in this embodiment.
  • Their recess bottoms 50 form on the underside 28, as can be seen in particular in FIGS. 8 and 9, two elongate webs 40.
  • Gripping ribs 60 are integrally formed laterally on the grip body 13.
  • 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 is visible on the underside 28 of the handle 12 shown in FIG. 9, a likewise elongated recess 30 is visible.
  • the recess bottom 50 of this elongate recess 30 forms the web 40, which is arched outwards on the upper side 26 and can be seen in FIGS. 7 and 8, extending in the direction of the longitudinal axis of the grip body 13.
  • FIG. 10 shows a section through the handle 12 along the sectional plane X-X shown in FIG. 8.
  • 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 cavity 42 formed in the interior of the handle 12 and delimited by a dashed line in FIG. 10 also has an almost rectangular cross-section in this embodiment.
  • an elastically resilient tongue element 64 is formed by a tongue recess 62 which extends from the neck 20 to the head 16 and extends from the upper side 26 to the lower side 28.
  • 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 projects, as shown in FIGS. 8 and 11, on the upper surface 26 above 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.
  • FIGS. 8 and 11 clearly show that equivalent material thicknesses are formed both on the frame body 66 and on the tongue element 64, which brings production-related 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.
  • FIG. 12 already shows 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 sectional plane designated by X - X in FIG. 8 through the toothbrush body 14. Accordingly, the section shown in FIG. 12 by the injection molding tool 70 represents the negative shape of the cross section of the handle 12 shown in FIG from 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.
  • FIGS. 14 to 24 show further embodiments of tongue elements 64.
  • two tongue recesses 62 extend from the head end region of the neck 20 to the free end region of the head 16.
  • the tongue recesses 62 run at least approximately parallel to one another.
  • 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.
  • Fig. 14c perpendicular to the tongue recesses 62 and congruent on the top 26 and the bottom 28 of the head 16 each have two head grooves 76.
  • the reduced between the head grooves 76 material thickness forms two film-like hinges 78.
  • the film-like hinges 78 subdivide the Head 16 in three elastically 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 relative to the frame body 66 is arranged offset 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 another embodiment of a toothbrush 10 having a neck 20 and a head 16 that is similar to the embodiment shown in FIG. 9.
  • 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.
  • FIGS. 16 to 21 show specific design possibilities of tongue elements 64.
  • the loop region of the tongue recess 62 can be oval in the head 16 (FIG. 16), rhombus-shaped (FIG. 17), balloon-like (FIG. 18) and / or pictographically rounded. angular and / or rectilinear segments (FIGS. 19 to 21).
  • Various designs of tongue elements 64 which may optionally be colored, improve the recognition of a particular toothbrush 10.
  • the Tongue vertex 68 are connected to the frame body 66.
  • FIGS. 22 to 24 show a further embodiment of a multi-part head 16.
  • the head 16 is provided from the neck 20 to the free end of the head 16 with a in the plan views of Fig. 22 and Fig. 23 visible, slit-like, S-shaped curved tongue recess 62.
  • 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 visible in FIG. 24, and different topographies on the top side 26 and / or bottom side 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.
  • embodiments of the head 16 shown in FIGS. 22 to 24 are possible, in which the two tongue elements 64 are arranged in a V-shape relative to one another. 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 shown for example in FIG. 23. 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, substantially rectangular, lowered recesses 30 arranged in a row along the longitudinal axis of the handle 12. 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 clearly visible as slightly curved and substantially parallel lines to the underside 28 in the side view of FIG.
  • 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 cavity 42 surrounded by the webs 40 and recess walls 52 is shown in the sectional views of FIGS. 28 and 29.
  • the figures show cross sections of the handle along the cutting planes XXVIII-XXVIII and XXIX-XXIX shown in FIGS. 26 and 27.
  • 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 shown in Figs. 28 and 29, a substantially rectangular cross-section.
  • section plane XXIX-XXIX extends on the upper side 26 through a web 40 and on the underside 28 through a recess opening 54.
  • the two-part injection molding tool 70 for producing the toothbrush 10 from FIGS. 25 to 29 is shown in a sectional representation.
  • the cutting plane selected in this case corresponds to the sectional plane designated XXIX-XXIX in FIGS. 26 and 27.
  • the sectional view of the injection molding tool 70 shown in FIG. 30 represents a negative mold of the cross section through the handle 12 shown in FIG. 29.
  • Finger elements 74 which delimit the first tool half 72. 1 in the second tool half 72 extending from the second tool half 72.2 into the first tool half 72.1, the cavity 88 (mold cavity).
  • the finger elements 74 form in the finished handle 12, the recesses 30. By contacting the finger elements 74 of the first tool half 72.1 and the second tool half 72.2, the angled passages 86 and the cavity 42 are formed.
  • FIGS. 31 and 32 show a further embodiment of a handle 12 according to the invention.
  • the grooves 90 of the top 26 and the bottom 28 are congruent with each other.
  • mutually offset recesses 30 are arranged in the grooves 90.
  • the recesses 30 of the grooves open to the top 26 26 and the recesses 30 of the bottom surface 28 toward the open grooves 90 are, as in the truncated in Fig. 31 area, offset from each other.
  • the sectional plane for the portion shown in FIG. 31 is indicated in FIG. 32 as 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 surrounded in Fig. 31 by dashed lines cavity 42. As shown in FIG. 32, the grooves 90 may be opened in an oval fashion or may be formed like a line.
  • FIGS. 33 to 39 show a further embodiment of a toothbrush 10.
  • 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 the toothbrush shown in FIGS. 33 to 36, wherein the respective sectional planes in FIG. 36 are designated 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, the blind hole opening 94 opened towards the lower side 28 is cut. In all three sectional views of FIGS. 37 to 39, the grooves 90 that are congruent with one another on the upper side 26 and lower side 28 are likewise visible.
  • FIG. 40 shows a further embodiment of a toothbrush 10 according to the invention.
  • the structure of this embodiment is essentially analogous to the toothbrush 10 shown in FIGS. 1 to 5.
  • the recesses 30 opened to the upper side 26 and lower side 28 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.
  • 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 show 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 has a first tool half 72.1, which is shown in a plan view in FIG. 42, and a second tool half 72.2, which is shown in a plan view in FIG. 41.
  • the two tool halves 72.1 and 72.2 are placed on top of one another with the front surfaces shown in FIGS. 41 and 42, respectively, in order to inject plastic components into the injection mold after the two tool halves have been folded together Inject 72.1, 72.1 formed integrally continuous cavity 88.
  • the injection of the plastic takes place via an injection funnel 96 shown 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 .
  • the finger elements 74 which respectively belong to the first and second mold halves 72. 1, 72. 2, engage in one another such that a flow of plastic at their contact surfaces 100 is excluded. Due to the exclusion of plastic between the contact surfaces 100, the recesses 30 are cured in the Plastic body connected to form the cavity 42 together.
  • the individual finger elements 74 each taper conically at an angle between 5 ° to 15 °, preferably 10 °, and are along a demoulding direction E. aligned to separate 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 shown in FIG.
  • 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 molding tool in Fig. 41 and 42, this side slider is not shown. In comparison with the arrangement of the embossing field 38 on the toothbrush in Fig. 2, it can be concluded, however, 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 in particular the elastically deflectable tongue elements 64 must be mechanically fixed in a head mount 104, as shown in FIGS. 45 to 51.
  • the head holder 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 shown in Fig. 47 and Fig. 48, the clamping bracket 110 on the top 26 on the free end of the head 16, while the two pins 108 by their minimum distance from each other only the tapered neck 20, but can not accommodate the widened head 16 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 support 104 is shown in Fig. 50 and Fig. 51. Approximately in the center of the clamping modem 114 opens an open intake manifold 116 in this device. As shown in Fig. 51, when the head 16 is clamped, the tongue member 64 rests on the clamp assembly 114, thereby closing the intake manifold 116. To prevent the tongue member 64 from lifting off In the intake manifold 116, a negative pressure is generated.
  • 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.
  • Both a toothbrush 10 according to the invention and other personal care appliances can be packaged and presented by means of the group packaging 118 described below and shown in FIGS. 52 to 56.
  • the group package 118 shown in FIG. 52 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 carriers 122 of the individual packages 120 are rectangular in shape and are separated from one another 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.
  • 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.
  • a presentation body 136 shown in FIG. 54 is formed.
  • 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 is produced.
  • the presentation body 136 is shown in FIG. 56 and extends above a square outline due to the equally spaced fold lines 134 ,
  • 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 shown in Fig. 54 are provided with threads 138 and suspended 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)
EP20050020182 2005-09-16 2005-09-16 Manche pour brosse à dent Active 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
EP06775157.8A EP1924167B1 (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
PCT/CH2006/000464 WO2007030958A1 (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 true EP1764011A1 (fr) 2007-03-21
EP1764011B1 EP1764011B1 (fr) 2013-04-10

Family

ID=35759281

Family Applications (1)

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

Country Status (1)

Country Link
EP (1) EP1764011B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023232822A1 (fr) * 2022-05-31 2023-12-07 Trisa Holding Ag Produit d'hygiène bucco-dentaire

Citations (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
US5813079A (en) * 1991-03-27 1998-09-29 Lingner & Fischer Gmbh Toothbrush having a flexibility linked zone in its head
WO2001070590A1 (fr) 2000-03-23 2001-09-27 Colgate-Palmolive Company Plateau-presentoir pour brosses a dents
EP1119272B1 (fr) 1998-10-08 2002-12-04 Trisa Holding AG Brosse a dents
DE10219516A1 (de) * 2002-04-30 2003-11-20 Braun Gmbh Verfahren zum Herstellen einer Zahnbürste mit geteiltem Bürstenkopf

Patent Citations (7)

* 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
US5813079A (en) * 1991-03-27 1998-09-29 Lingner & Fischer Gmbh Toothbrush having a flexibility linked zone in its head
EP1119272B1 (fr) 1998-10-08 2002-12-04 Trisa Holding AG Brosse a dents
US6687940B1 (en) * 1998-10-08 2004-02-10 Trisa Holding Ag Toothbrush
WO2001070590A1 (fr) 2000-03-23 2001-09-27 Colgate-Palmolive Company Plateau-presentoir pour brosses a dents
US20030116459A1 (en) * 2000-03-23 2003-06-26 Colgate-Palmolive Company Toothbrush display tray
DE10219516A1 (de) * 2002-04-30 2003-11-20 Braun Gmbh Verfahren zum Herstellen einer Zahnbürste mit geteiltem Bürstenkopf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023232822A1 (fr) * 2022-05-31 2023-12-07 Trisa Holding Ag Produit d'hygiène bucco-dentaire

Also Published As

Publication number Publication date
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