WO1983003742A1 - Improved toothbrush - Google Patents

Improved toothbrush

Info

Publication number
WO1983003742A1
WO1983003742A1 PCT/GB1982/000133 GB8200133W WO1983003742A1 WO 1983003742 A1 WO1983003742 A1 WO 1983003742A1 GB 8200133 W GB8200133 W GB 8200133W WO 1983003742 A1 WO1983003742 A1 WO 1983003742A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
member
paste
means
position
container
Prior art date
Application number
PCT/GB1982/000133
Other languages
French (fr)
Inventor
Victor Campbell Blackwell
Original Assignee
Victor Campbell Blackwell
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B11/00Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • A46B11/0027Lead-screw mechanisms
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B17/00Accessories for brushes
    • A46B17/04Protective covers for the bristles
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/02Bristle carriers arranged in the brush body in an expanding or articulating manner
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Abstract

A combined toothpaste dispenser and toothbrush device comprising an elongate container (10) for receiving or containing toothpaste and forming a handle member, a toothbrush member (11) with bristles (13) connected and preferably pivotably or even slidably connected to said container, ducting means (31, 32, 33) leading or capable of leading from the container (10), and preferably through the pivot interconnection region (27), when provided, to the bristles (13) of said toothbrush member (11), and means (18) for enabling paste to be urged through said ducting means to said bristles; said toothbrush member (11) being displaceable relative to said elongate container (10) so that in an inoperative position the brush member (11) is juxtaposed or lies along said container (10) whilst in the operative position the brush member extends from the end of said container and away therefrom to permit teeth-cleaning operations to be effected. The invention also relates to a specific step-wise operating displacing means for displacing th paste suitable for use in any toothbrush of this type, and also to various novel paste duct closure means.

Description

IMPROVED TOOTHBRUSH The present invention relates to an improved combination of toothpaste dispensing device and toothbrush.

In my prior British Patent Application No.7942353 there is disclosed a combined toothpaste dispenser and toothbrush comprising an elongate container for receiving or containing toothpaste and forming a handle member, a toothbrush portion or member connected to said container and extending rigidly therefrom, ducting means leading from the container to the bristles of said brush portion or member, and means for enabling paste to be urged through said ducting means to said bristles.

Various prior specifications have been revealed relating to similar subject matter although none of such prior specifications have advantageous closure means for the paste duct nor can they be readily reduced in length, especially by pivoting, sliding or telescoping of the main components thereof to produce a compact arrangement in the inoperative condition.

It is an object of the invention to overcome disadvantages of prior devices and provide the advantageous feature described herein. According to the present invention there is provided a combination comprising an improved toothpaste dispenser and toothbrush comprising an elongate container for receiving or containing toothpaste and forming a handle member, a toothbrush member connected or connectable to said container, ducting means leading or capable of leading from the container to the bristles of said brush member, and means for enabling paste to be urged through said ducting means to said bristles; said toothbrush member being adapted to be displaced relative to said elongate container so that in an inoperative position the brush member is juxtaposed or lies along said container whilst in the operative position the brush member extends from the end of said container away therefrom to permit teeth cleaning operations to be effected.

It is generally intended that the mounting of the brush member on the container to permit the brush member to be folded or moved against or into the region of the container when not in use is generally achieved by pivot or hinged interconnection means between the brush member and container - or sliding or telescopic arrangement as will be hereinafter described - although, if desired, the two components may be separable and securable in either of the two mentioned positions of use and non-use. However, the tuo members will normally be pivoted together by suitable means as trill be described hereinafter.

Whilst it is possible for the brush member in its folded or position of non-use, to have toothpaste applied to the bristles from the exterior thereof (e.g. via a duct of the container leading to the region of the bristles as a separate integer and not part of the brush member direct) it is normally intended that the toothpaste be supplied and directed by suitable ducting means within the brush member and leading to the bristle region thereof as will also be described herein.

In one embodiment of the invention it is proposed that a paste duct extending from the container in the form of an angled tubular duct be pivotally connected coaxially with a tubular duct of the paste duct of the brush member to permit desired pivotal connection between the components. The invention will be described further, by way of example, with reference to the accompanying drawings in which :-

Fig.1 comprises a schematic perspective view of a simple embodiment of the present invention; Fig. 2 is a fragmentary schematic perspective illustration of an alternative embodiment;

Fig. 3 is a fragmentary detailed perspective view of the device of Fig. 2 but wherein a sliding closure hinge is omitted to show the paste ducts within the container and bristle member; Fig. 4 is a schematic perspective view showing the device in the opened-out operative position but with the closure hinge omitted also;

Fig. 5 is a schematic sectional illustration of an alternative embodiment of the invention wherein the components of the device are interconnected by an apertured pivot member;

Figs. 5a and 5b comprise different fragmentary perspective views of the pivot member and a socket therefor in the dispensing container;

Fig. 6 is a further fragmentary schematic illustration showin the pivot interconnection of Fig. 5;

Figs. 7 arid 7a are schematic views of a further embodiment wherein a sliding arrangement is illustrated;

Fig. 8 is a schematic side elevation and part section of an alternative embodiment of a folding toothbrush and toothpaste dispenser; Fig. 9 is a schematic perspective view of the device of Fig. 8 wherein the brush member and paste container or handle members are shown separated; Fig. 10 is a schematic perspective view of a further embodiment of a toothbrush in the folded operative position;

Fig. 11 is a schematic sectional illustration of the toothbrush of Fig. 10; Fig. 12 is a schematic sectional illustration of the toothbrush of Fig. 11 with the pivot member axially displaced prior to pivoting and movement together into the inoperative position shown in broken line in Fig. 10;

Fig. 13 is a fragmentary view of the pivot members of Figs. 11 and 12 shown separately;

Fig. 14 is a schematic illustration of a non-folding embodime having alternative paste displacing means and also an alternative paste duct closure means;

Fig. 15 is an enlarged fragmentary detail of a stepping device of the paste displacing means of Fig. 14;

Fig. 16 is an enlarged fragmentary schematic illustration of the paste duct closure means as used in the toothbrush of Fig. 14;

Fig. 17 is an enlarged fragmentary illustration of an alternat paste duct closure means suitable for use in a previous embodiment as an extension of a rotary, axially displaceable threaded member used for displacing the paste pressure member;

Figs. 18 to 24 show various alternative arrangements of means forming the paste duct closure means;

Fig. 25 illustrates an embodiment wherein a rotary threaded member is provided for displacing the paste pressurizing means and the paste duct closure means of Fig. 16 is included therein;

Fig. 26 is a schematic illustration of an alternative arrangement of a non-,pivoting toothbrush wherein a paste duct closure means is provided on an extension of the threaded member which in addition to being rotatable to displace tha paste pressurizing means, is also axially displaceable to displace the paste duct closure means to open and close an outlet leading to the bristles; and

Figs. 27 and 28 are schematic views of a further embodiment where the paste container and brush member are hingedly interconnected and the interconnection of the paste ducts effected by a flexible tubular member. In the embodiment of Fig. 1, a paste container 10 and brush member 11 are interconnected by a hinge member 12. Similar in construction as the member 27 (and surrounding housing) as the corresponding components (27) of Figs. 5, 5a, 5b and 6 except that member 12 does not have a paste passage therethrough. The brush member is displaceable out of the secured operative position shown in full lines in Fig. 1 into an inozerative position as shown in broken line with the bristles 13 resting in a recess 14. Paste may be urged onto the bristles 13' via duct 15 in the recess by turning knob 16 of a paste displacing means comprising a screw means 17 rotatable within the container 10 by knob 16. Rotation of screw 17 causes a piston or pressure member 18 to be displaced within container 10 to cause paste contained therein to be urged out of duct 15 onto the bristles 13. Closure of the paste duct in the example given is effected by the means shown in Fig. 17 although any suitable alternative arrangement may be used. The device of Figs. 2, 3 and 4 comprises a toothpaste container 10 and brush member 11 pivotally interconnected at 19 (not shown in detail) with the container 10 and brush member 11 having oppositely facing and similarly shaped, T-shaped recesses 20. Paste ducting means open in apertures 21 in the central T-shaped portion of the cross-piece of recesses 20 and are disposed so that in the open position with the brush member 11 pivoted so as to extend from the end of the container 10 the apertures 21 are aligned and interconnected by an apertured, slidable-hinge-valve member 22 shown in position in Fig. 2. This slidable member 22 includes two wings or plates having apertures 22' therein and which are slidable in the recesses 20 of the container 10 and brush member 11 such that in the position of use (Fig. 4) with the apertures 21 aligned together, the apertures 22' in the wings of the hinge are also aligned with the apertures 21 so as to permit paste to be urged therethrough by means (not shown in detail) which may be similar to those described in Fig. 1 as required and supplied via ducting means to the bristles of the brush member as hereinbefore described. At the end of the container 10 is a rotary member 23 which is rotatable to move the paste displacing means. The rotary member 23 is rectangular and has a recess 24 into which the bristles of the brush may be located in the folded position. A pin 25 is provided in the recess and located in a paste duct aperture 26 which enables paste to be urged onto the bristles 13, This pin 25 stops aperture 26 and prevents discharge and hardening of the paste therein. The hinge closure member 22 will be restricted in its movement so as not to fall out of the recesses 20 and operates such that as the brush member 11 is pivoted into the folded position, the movement of said brush member 11 relative to the container 10 causes the apertures 22' to be moved out of alignment with apertures 21 thereby closing the paste ducting passages. Such valve member movement may be facilitated or increased by suitable shaping or projection means on the casings of the components or by the actual disposition of the main hinge and the pivoting thereof.

In the arrangement of Fig. 5, as amplified by Figs. 5a, and 5b and Fig. 6, the supply of paste through the hinge or pivot region between the container 10 and brush member 11 is achieved via a double swivel or cylinder joint 27 having double pivot portions 27' and 27" respectively located by axial sliding and snap-fit in corresponding recess 28 in brush member 11 and in recess 29 in container 10. The recesses 28 and 29 each have a cut-out portion 30 to permit additional relative movement of the components during the pivoting to achieve the desired folded position and opened position. The joint member 27 has a central passage 31 for flow of paste urged by suitable means (not shown although similar to the previous embodiments) and in the open position of the device such passage 31 aligns with ducting means 32 and 33 in the container 10 and brush member 11 respectively. When the device is folded into the inoperative position, the bristles 13 located in recess 24 in the end member of container 10 and the aperture 26 in the bristles 13 is closed by a spike or like pointed closure member 25 in the bottom of recess 24. In such position the joint member 27 assumes a substantially vertical transverse position as shown in broken line so that the apertures 31 are no longer aligned with apertures 32 and 33 and thus the ends of the paste passage portions of the device are closed. Fig. 6 is an enlarged fragmentary section showing the pivot connection in the operative position and showing a groove 10' and projection 11' in the container 10 and brush member 11 which are so shaped and dimensioned as to provide a snap-fit arrangement so as to hold the brush in the operative position during use and then permit disengagement and subsequent pivoting to the inoperative position.

In Fig. 7 there is illustrated a paste container 70 with pressurizing means and dispensing means for the paste as described in detail with respect to Figs. 14, 15 and Fig. 16 with respect to the paste duct closure means. The container 70 has an elongate passage 36, extending along a side thereof and in which a similarly or correspondingly cross sectioned stem of a brush member 37 is retractably slidable into a collapsed position (Fig. 7a) from an extended position of use (Fig. 7). This arrangement permits generally linear displacement of the brush member 37 and bristles 13 from the operative position to the inoperative position. Paste is dispensed to the brush portion 13 through a duct 38 located adjacent the position of the bristles 13 when the brush member 37 is in the inoperative position, Fig.7a. Paste duct closure means are provided comprising a spring biassed member 82, 83 operating as described hereinafter. A closure flap is hingedly located at the end of the container to close the end thereof when the brush member is moved into the inoperative position. Suitable detent and snap-fit arrangements are provided in the stem 37 and surrounding casing to hold the brush member in the operative position. Other telescopic arrangements are also considered within the scope of the present invention. The embodiment of the toothbrush illustrated in Figs. 8 and 9 comprises a paste container 42 for containing or receiving toothpaste and also acting as the handle for the toothbrush. Within the container 42 there is located a rotary threaded spindle or screw member 43 rotatably mounted at both end regions and rotatable by means of an end knob- like member 44 so that a pressure member or piston 45 is displaceable within the hollow space provided in the container 42 so as to thereby enable paste to be displaced therefrom via passage 46. The end member 44 also includes a recess 47 in which the bristles 13 of the toothbrush are locatable in the inoperative position αf the toothbrush and a closure, pin 48 extends fron the base thereof for co-operation with the toothpaste outlet duct as will be described hereinafter.

A pivot connection 49 is provided between the container 42 and brush member 50 bearing bristles 13. The member 50 has a paste duct 51 extending therethrough and opening into the region of the bristles 13 by way of an aperture 51 '. The pivotal hinge connection 49 between the container 42 and the bristle support member 50 is such as to permit paste to be displaced along the duct 46 and 51 to the bristles 13 in the operative position but to permit folding of the brush member 50 against or along the container 42 whilst at the same time closing the toothpaste ducts. The pivot comprises an extension on the container 42 comprising a cylindrical member or portion 52 supported in cantilever manner on an end face (in the remote side in the drawing (not shown) ) by a part of container 42 with said cylindrical portion 52 being spaced from an arcuate part circle portion 53 of the container 42. A passage 54 is provided extending through the portion 52 and is off-centre relative thereto but aligned with passage 46. The end of the brush member 50 has an annular ring portion 55 provided thereon pivotally and securely locatable on portion 52 with apertures 55' and 55" formed therein to be alignable in the operative position with passage 54 and passage 46.

In the assembled condition the ring 55 engages around cylindrical member 52 and is held thereon by suitable press fit means (not shown) and the brush member 50 is pivotable relative to the container 42. In the operative position with the bristle support pivoted away from the container 42, the paste ducts are all aligned so that paste may be urged through the ducts by displacement of member 45 to the bristles 13. The brush is retained in this position by press fit groove and socket means as shown. In the folded condition of the toothbrush, the bristle support member 50 lies along the container or handle portion 42 and the bristles 13 are located within the recess 47 with the pin 48 extending into the aperture 51' thereby closing such paste duct. The apertures 55' and 55" in the inoperative condition are no longer aligned with the paste ducts 46 and 54 which said latter ducts are closed by the continuous solid surface of the ring portion 55. Any similar pivot interconnection, e.g. rounded or ball and socket-like means (possibly with the component parts being reversed in their location on the members) may be provided and appropriate sealing effected.

The embodiment illustrated in Figs. 10 to 13 comprises a handle and paste container member 56 and a brush member or bristle support member 57 having a paste duct 58 extending therethrough and leading at the free end to an opening in bristles 13. The bristle support member 57 is pivotally connected to handle 56. The handle 56 has a knob member 59 at one end for rotating a screw member 60 within the handle 56 so as to thereby displace a piston or pressure member 61 within the hollow container or handle 56 to cause paste located therein to be discharged through the paste ducts of the toothbrush and onto the bristles 13. Paste is discharged from the handle 56, through a duct leading through the pivot connection and through duct 58 to the bristles 13. The rotary knob member 59 defines a large recess in which the bristle members 13 may be located in the inoperative position of the device. Suitable closure means such as a pin 62 may be provided for the paste aperture in the bristles 13.

The pivoting from the operative to inoperative position may be effected simply from the position of Fig. 10 in which case a side of knob 59 would have a gap (not shown) for the passage of the bristles 13 which may have a gap therein for receiving the closure means 62. However, in the preferred arrangement as shown the pivot connection between the handle 56 and bristle support members 57 has a displaceable characteristic in that the bristle support member 57 and handle 56 may be separated somewhat relative to each other so that the bristle support member 57 may be moved from the operative position laterally away from the handle 56 and then pivoted to the folded, inoperative position whereupon the two components are then pushed together so that the bristles 13 move into the recess 59' in the knob member 59 whereby pin member 62 located in the recess 59' thus engages with the aperture 26 in the bristles 13 to close the paste duct therein. Fig. 13 is a fragmentary detail of the pivotal connection wherein the members are shown separate and wherein an end wall 63 of the paste container portion 56 has an aperture 64 therein for the outlet of paste therefrom when displaced by the pressure means 61. The bristle support member 57 has a pivot axle 65 with a duct 65' extending axially thsrealong and also at right angles thereto. Axle 65 pivots in a passage in the handle 56 and duct 65' communicates with the duct 58 leading to the bristles 13. An aperture 65" is provided in the wall of the axle 65 such that when in the operative position the aperture 64 and 65" are aligned to permit paste to be discharged through the ducts to the bristles 13. An enlargement 65''' is provided at the end of the axle 65 co-operating with a groove 63' in the handle member such that the two handle and brush members may be displaced transversely relative to their longitudinal axis and relative to each other to permit the desired folding of the bristle support member alongside the handle member 56 and then the moving together of the two members to locate the pin 62 in the aperture 26 of the bristles 13.

The axial member 65 has two longitudinal ribs 66 diametrically opposite and located in a plane at right angles to the longitudinal axis of the brush member 57. The ribs 66 co-operate with co-operating grooves 67 formed in the transverse passage in the handle member 56 so as to act to retain such ribs in the grooves. This arrangement permits the toothbrush to be retained in its operative position until the ribs are displaced out of the grooves and displaced through approximately 180º whereupon the ribs 66 relocate in the grooves 67 and the members are then held securely in the inoperative position.

In the embodiment of Figs. 14 and 15 a non-pivoting toothbrush arrangement is shown wherein there is provided an axially displaceable knob or rotary member 68 biassed by spring means 69 outwardly of toothpaste container 70 having bristle support 71 extending therefrom and carrying bristles 13. A piston or pressure member 72 of generally rectangular form with inclined faces 78 is carried by a rod 79 on which there are located a plurality of conical members 80 arranged to point in the same direction and resilient so as to be displaceable through a correspondingly shaped conical aperture 77' in member 77. The portions 80 are shaped so as to be capable of being drawn through aperture 77' whereupon they are reduced or compressed in diameter somewhat and on passing therethrough, from right to left in Figs. 14 and 15, they then expand and act against the flat surface of member 77 acting to be pushed thereagainst and not be displaceable through the aperture 77'. On opposite walls of rectangular paste container 70, there are located a plurality of parallel, step-like teeth 81 forming a ratchet-like arrangement co-operably engageable with the sloping surfaces 78 of member 77 such that when the member 77 is urged by portion 80 acting against the left-hand face thereof as shown in the drawings, member 77 may be displaced step-like along from groove to groove between the teeth 81 - the resilience of the casing and teeth and the portions 80 permitting this action. This opposite ratchet-like arrangement enables the member 77 to be stepped along the teeth of ratchet 81 by depressing knob 68. The spring 69 causes conical portions 80 to be drawn stepwise through the member 77 whilst the non-sloping surfaces of the teeth 81 prevent movement of the member 77 towards knob 68. The next depressions or axial movements of the knob 68 into the container 70 causes a stepwise movement of the member 77 within the paste container 70 thereby causing stepwise urging of the paste through the paste duct 71' and to the bristles 13. Such step like paste dispensing mechanism may be provided in the earlier arrangements in place of the threaded screw member as would be readily apparent to persons skilled in the art without undue major modification - various possible arrangements also exist for modifying the paste duct closure means.

A paste duct closure means is shown adjacent the aperture leading to the bristles 13 and comprises a displaceable cylinder or like member 82 spring biassed by spring 83 into a closed position sealing off the aperture 84 leading to the bristles 13. Upon movement of the member 77 by action on knob 68 the paste is urged under pressure through duct 71 and such pressure displaces the closure member 82 against the action of the spring thereby opening the paste duct to the aperture 84 and the bristles 13 and permitting paste to be urged to the bristles. Upon reduction of paste pressure, the spring 83 causes the member 82 to close the paste duct. This arrangement might be provided for the earlier disclosed embodiments without undue modification and such is shown in greater detail in Fig. 16.

In Fig. 17 an arrangement is provided which is particularly suitable for use with a rotary, axially displaceable threaded member as an extension thereof so that rotation of the extension 85 causes circular closure member 86 to move through 180º thereby opening the paste duct 81 for a short while permitting paste to be urged to the bristles 13.

Fig. 18 shows an alternative arrangement of paste duct closure means wherein a polythene or other plastics material flexible finger 87 extends from the aperture in the paste duct and is closed by the pressure of the surrounding bristles 13 although does open under paste pressure to permit paste to be discharged into an upper region at the top of the finger 87 in the upper region of the bristles 13. Fig. 19 shows a still further alternative arrangsmεnt of the paste duct closure means comprising a number of ribs 88 joined togsther with a flexible film or the like material 90 and may be clipped onto the paste duct outlet aperture 91 such that the member by virtue of the resilient film 90 closes together to form a stack-like arrangement as shown in Fig.21a through which paste may be urged upon action on the paste displacing means but which close together to seal off the aperture when the paste pressure drops.

In an alternative arrangement (not shown) bristles 13 may be arranged in sloping manner or groups thereof in sloping manner about the paste duct aperture so as to form a conical or surrounding abutting arrangement through which paste may be urged under pressure but which act to close the paste duct when the pressure is relived.

Fig. 20 shows an alternative arrangement of paste duct closure means whereby a flexible tube member 92 is located within the paste duct and forms part thereof and upon relative displacement of the bristle support member relative to said tube 92 the tube 92 is displaceable upwardly into the bristles 13 as shown in broken line to permit paste to be displaced therefrom via previously described paste dispensing means (not shown). The bristle head may be then retracted or displaced by spring means relative to the tube 92 to assume the position as shown in Fig. 20 whereby the end of the paste duct formed by the end of the flexible tube is closed.

An alternative arrangement is shown in Fig. 21 whereby the bristles 13 are supported on a displaceable member 93 spring biassed by a resilient portion 93' into the open position as shown but which bristle support 93 is used with a folding arrangement whereby the edge 93" strikes against a surface causing displacement in the direction of the arrow and closure of the paste duct means 94. Fig. 22 shows a schematic perspective view and section of an alternative arrangement of the paste duct closure means whereby a closing piston 95 is displaceable in the duct 96 leading to the bristles 13 from open to closed position by virtue of manual action on the trigger 97 as shown. Fig. 24 shows a cover cap 98 with paste duct closure member 99 which may be provided so as to locate over the bristles 13 and thereby provide hygenie cover whilst at the same time providing a bristle paste duct closure member pin. Fig. 25 sho.ws a simple arrangement with a rectangular or other non-circular section paste container 100 carrying a rotary threaded spindle 101 with paste pressure or displacing member 102 and a knob 103 which upon rotation causes the member 102 to move along threaded spindle 101 and urge paste towards paste duct closure means 82, 83 which is similar to that described in Figs. 15 and 16.

In the arrangement of Fig. 26 an extension 101' to the threaded member 101 is provided carrying a closure cylinder 82 which is spring biassed to a closed position by a spring 83. The rotaiy knob 103 is provided on the other end of the threaded spindle 101 to effect rotary movement of the spindle. A plate 104 secured in the container 100 has a spring biassing means 105 acting thereagainst and against a box-like member 106 also carried by the threaded member 101 such that on axial displacement of the threaded member 101 the spring 105 is compressed as is the spring biassing means 83 of paste duct closure member 82 so as to permit the duct 107 leading to the bristles 13 to be opened and paste to be discharged. On relaxation of the axial pressure on the knob 103 the springs then act to return the threaded member and components carried thereby to thereby close the paste duct 107 by means of closure member 82.

Fig. 27 is a schematic cross-sectional illustration of a further embodiment with paste displacing means and paste duct closure means similar to previous embodiments. Fig. 28 is an exploded fragmentary schematic perspective of the hinge interconnection between the paste container and brush member and this comprises a hinge member 108 secured to the container 10 and brush member and having a cut out portion 108' to permit folding into the inoperative position shown in broken line. A flexible tubular member 109 is located in sealing engagement with paste duct 110 in the container 10 and duct 33 in member 11. The tubular member will be of such nature as to permit required folding and may even be such as to collapse and close the paste duct in the folded position if desired.

The provision of a toothbrush with toothpaste within the handle and with a brush member pivotable or telescopic or extendible and retractable relative thereto is of considerable advantage to persons desiring a compact and simple teeth cleaning arrangement which is readily portable.

In the previously described arrangements various components or mechanisms may be interchanged as desired. Further various modifications and changes may be made without departing from the scope of the invention. For instance, the brush member may be hingedly mounted on a side of the paste container and have a duct communicating with the paste container interior in the operative position. The rotary spindle with two oppositely threaded portions may be provided and two paste pressure members also provided acting in opposite directions and moving together to displace the paste.

The device is preferably made of plastics material and mouldings, snap-fit connections etc., will be apparent to persons skilled in the art.

The paste may be contained in a flexible plastics bag or tube open at one end and utilizable as a refill - dispensing to bristles being effected by collapsing bag by suitable means. A compartment may be provided (such as shown in Figs. 1 or 27) preferably in the rotary knob member when provided for receiving a bobbin of dental floss and/or a toothpick device, preferably formed on a flat sheet of shaped flexible plastics material (not shown).

It will be appreciated that many modifictions or changes can be effected in putting the invention into practice. For example, the step-wise displacing means with ratchet-like teeth for enabling paste to be urged through the ducting means such as shown in the arrangements of Figs. 7, 7a or Figs. 14 and 15 may be included in an arrangement where the brush member is pivotably connected to the handle for containing paste. Further, in one form of such embodiment, the bristles of the brush member may be locatable in the folded position within a space or recess within the handle member and the step-wise operating displacing means for the paste be so arranged that in operation, paste may be urged through paste ducting means and into the recess and onto the bristles when the brush is in the folded position.

Claims

AMENDED CLAIMS
[received by the International Bureau on 18 April 1983 (18.04.83); original claims 1 to 30 replaced by the amended claims 1 to 29]
1. A combined toothpaste dispenser and toothbrush device comprising an elongate container for receiving or containing toothpaste and forming a handle member, a toothbrush member supporting bristles of the brush having an elongate stem and being pivotably connected to the handle member so as to be pivotably displaceable from an operative position, wherein the toothbrush member extends outwardly from the end of the container, to an inoperative position wherein the toothbrush member lies along or adjacent the handle member, ducting means leading or capable of leading from the container to the bristles of said brush member so that paste may be dispensed onto the bristles, and means for enabling paste to be urged through said ducting means to said bristles; wherein in the inoperative position the bristles of the brush member are located within a space or recess at the end of the handle member remote from the pivotal connection of the toothbrush member with the handle member, with said space or recess being within the handle member or a displaceable paste dispensing member adjacent thereto; and wherein the closure means and/or the ducting means leading to the bristles are such that the ducting means is closed to the atmosphere in the inoperative position of the brush member.
2. A device as claimed in claim 1, in which the ducting means includes a passage extending through said brush member and in which the ducting means in the operative position of the brush member extends through the pivot interconnection or in adjacent regions between the paste container and brush member to permit paste to be supplied to the bristles from the container via the ducting means in the toothbrush member.
3. A device as claimed in claim 2, in which the brush member in the region of the pivotal connection with the handle has an aperture in an end face alignable with a corresponding aperture in an end face of the handle member in the operative position such that said two apertures are aligned and juxtaposed so as to permit paste to be displaced therethrough by operation of the rotary member and wherein the end faces in which said apertures are provided are located within channel or recess portions of the members in which closure means for the apertures are provided.
4. A device as claimed in claim 3, in which closure means for closing the ducting means in the region of the pivotal connection comprise two pivotally connected or hingelike plate members or the like members having apertures therein which are aligned when the two members are pivoted adjacent each other and said closure means being located within said recesses such that when the device is in the operative position, the apertures in the hinge members are aligned and also aligned with the apertures of the ducting means in the handle and brush member to permit passage of paste therethrough but arranged such that in the inoperative position of the device the hinge member is displaced so that the apertures of the hinge member are no longer in alignment with the apertures in the handle and brush members and thereby act to close said passage. 5. A device as claimed in claim 2, wherein the pivot intercommunication between the brush member and handle member comprises a double swivel or round joint having two pivot portions connected to each other and an aperture extending therethrough, said pivot portions being locatable by snap-fit or like in corresponding recesses in the brush member and handle member wherein said recesses are suitably shaped in the respective members to permit movement of the members to the desired inoperative position adjacent each other and the operative position. 6. A device as claimed in claim 2, wherein a cylindrical or otherwise rounded or spherical portion of the handle member forms a part of the hinge interconnection and has a duct extending there- through aligned with an aperture in the handle member through which paste may be urged, and in which the brush member has a ring or correspondingly shaped means co-operable with said cylindrical or like member with apertures therein, one of which apertures communicates with the paste duct leading to the bristles such that said ring member is locatable and pivotable on said cylindrical member so that in the operative position the apertures are aligned to permit discharge of paste whilst in the inoperative position the apertures in the ring member are not aligned with the other apertures and thus the ring member acts to close the aperture in the handle member and closes the aperture in itself against the cylindrical member. 7. A device as claimed in claim 2, in which the pivot connection is a hollow axle having a paste passage therein and the bristles are displaceable from the operative position into the inoperative position in a recess of a rotary knob for operating the paste urging means. 8. A device as claimed in claim 2, in which the pivot interconnection comprises a member having an aperture therein alignable with a paste discharge aperture in the handle member and communicating with the paste duct of the bristle support member such that in the operative position paste may be discharged through the bristles whilst to assume the inoperative position the axial member must be displaced axially so as to displace the two components away from each other for subsequent pivoting and then movement together so the bristles move into the recess and where the aperture in the bristles is closed by a closure member located within the recess. 9. A device as claimed in any previous claim wherein the paste container and brush member are hingedly connected together and wherein a flexible pipe is located in aperture means in each of said members so as to communicate the interior of the paste container with the paste duct within the brush member and to permit the toothbrush to be moved from the operative to the inoperative position.
10. A device as claimed in any of claims 1 to 9, in which the means for enabling paste to be urged through said ducting means to said bristles comprises a screw member extending within the paste cavity of the handle and rotatable by suitable knob means so as to displace a pressure member or piston within the cavity to discharge paste through said duct.
11. A device as claimed in any of claims 1 to 9 wherein the means for enabling the paste to be urged through the paste ducting means comprises a series of parallel ratchet-like teeth portions on opposite sides of a paste container, a paste pressure member having sloping faces slidingly displaceable with resilient yielding over said ratchet-like teeth sloping portions so as to be movable in stepwise manner in one direction along said ratchet-like teeth within the paste container, and a reciprocateable elongate member having means for manual displacement in an axial direction with said elongate member having a one way stepping displacement means acting on said paste pressure member to permit such to be displaced along said ratchet-like teeth upon reciprocation of the elongate member.
12. A device as claimed in claim 11, wherein said elongate member extends through center of aperture means in said paste pressure member with said stepping displacement means being conically or expandably formed and shaped, wherein said elongate member has a plurality of flexible, conical or otherwise shaped members arranged to be displaceable in one direction through said aperture means undergoing a certain compression thereby and subsequently expanding to act against another face of said presssure member so as to prevent displacement of said stepping displacement means through said aperture means in the other direction. 13. A device as claimed in any of claims 1 to 9, in which said recess is located within a rotary knob portion or member of the handle also serving to drive the means for urging the paste through the paste ducts and is provided in a region remote from the hinge connection between the handle member and brush member. 14. A device as claimed in any of the previous claims wherein suitable detent means are provided on the container and brush member to retain the device in the operative position and permit displacement into the inoperative position.
15. A device as claimed in claim 14. in which the detent means is a clip or snapfit or the like temporary retention means is provided between the handle and the brush member to hold the brush member in the operative position. 16. A device as claimed in any of claims 1 to 12, in which a toothpaste duct is provided having opening within said recess adjacent the bristles when located therein such that in the inoperative position toothpaste may be urged through said ducting means onto the bristles which may then be pivoted into the operative position.
17. A device as claimed in claim 16 in which the closure means comprises a slideable valve closure located in the paste duct and operably displaceable by the paste displacing means control. 18. A device as claimed in any of claims 1 to 15 wherein said recess has a pin or like closure means such that when the brush member is pivoted into the inoperative position said pin or the like closure means engages in an aperture in the bristles of the brush member to close such aperture. 19. A device as claimed in any of claims 1 to 16 wherein the paste duct closure means is selected from the group comprising a closure member spring-biassed into the closed position to close said duct and urgeable into the open position upon pressurϊzation of the paste; a stop member located within the paste duct and acting to close the outlet opening thereof and being rotatable through 360° by action of said paste urging or displacing means to permit paste to be dispensed to the bristles and subsequently to close the duct: a flexible finger-like tapering member connecτed to the outlet opening of the paste duct at one end and having an opening at the other end for outlet of paste, said flexible member being closeable upon reduction of paste pressure by the action of the resilient bristles which surround such members; a conical member locatable over the outlet opening means of the paste duct means resiliently closing the point thereof upon relaxation of pressure of paste therewithin; a flexible tubular portion of said paste duct means being displaceable in a passage from a position wherein the end of said flexible pipe is closed to a position extending into the bristle portion for dispensing paste thereto; a manually displaceable piston in the brush supporting member movable from an open to a closed position; a plastic cap locatable over the bristles to protect such and having a pin extending therefrom and locatable in the outlet opening means of the paste duct means; or a bristle carrying member spring biassed in a groove so as to normally open the paste duct means but having a portion extending therefrom engageable by a portion of the handle in the inoperative position to close said paste duct.
20. A combined toothpaste dispenser and toothbrush comprises an elongate container for receiving or containing toothpaste and forming a handle member, a toothbrush portion or member connected to or connectable to said container, ducting means leading or capable of leading from the container to the bristles of said brush portion or member, means for enabling paste to be urged through said ducting means to said bristles, and closure means carried by an extension of a component of the means for urging paste through the ducting means and located and displaceable within the ducting means for optionally closing the opening of said ducting means leading to said bristles.
21. A toothbrush as claimed in claim 20, in which the closure means operate automatically to close said opening when paste is not to be discharged. 22. A toothbrush as claimed in claim 21, wherein the closure means is a closure valve displaceably located within the ducting means of the brush portion or member and operable such that once paste has been discharged the valve closure means automatically closes or is operable to close the opening leading to the bristles in said ducting means.
23. A toothbrush as claimed in any of claims 1 to 22, in which the ducting means is provided as a passage in the bristle support portion and an opening is provided so that paste may emerge therefrom and onto the bristles. 24. A toothbrush as claimed in any of claims 20 to 23 in which the elongate container for paste or the like tooth cleaning material has a hollow bristle support portion extending integrally from one end and having bristles located therein; in which said component is a screw member and is located axially of the container and extends into the hollow portion of the bristle support member and is rotatably mounted within the container and support; and in which at the open end of the container remote from the bristle supporting portion, a rotary knob is mounted and, within the container, a pressure member is mounted by screw threads on the screw member, such that upon rotation of the knob, said pressure member is caused to move along the rotary screw member and thereby cause paste to be compressed and urged through a hole in the bristle support member.
25. A toothbrush as claimed in claim 24, in which the screw member is axially displaceable to a limited extent and spring biassed at one end and has an enlargement or other closing means thereon which closes an outlet aperture for the paste in the bristle support member and is normally urged into the closed position by said spring.
26. A toothbrush as claimed in claim 25, in which the screw member is axially displaceable and carries said closure means and carries the rotary knob at its end remote from the bristles which is rotatably mounted in a displaceable member which is locatable on the container and moveable into one of two positions by means of detent or like temporary retention means to control closure means and the dispensing of paste. 27. A toothbrush as claimed in any of claims 20 to 26, in which the means for enabling paste to be urged through the ducting means comprises a series of parallel ratchet-like teeth portions on opposite sides of a paste container, a paste pressure member having sloping faces slidingly displaceable with resilient yielding over said ratchet-like teeth sloping portions so as to be movable in stepwise manner in one direction along said ratchet-like teeth within the paste container, and a reciprocateabie elongate member having means for manual displacement in an axial direction with said elongate member having a one way stepping displacement means acting on said paste pressure member to permit such to be displaced along said ratchet-like teeth upon reciprocation of the elongate member.
28. A toothbrush as claimed in claim 27, in which said elongate member extends through center of aperture means in said paste pressure member with said stepping displacement means being conically or expandably formed and shaped, wherein said elongate member has a plurality of flexible, conical or otherwise shaped members arranged to be displaceable in one direction through said aperture means undergoing a certain compression thereby and subsequently expanding to act against another face of said pressure member so as to prevent displacement of said stepping displacement means through said aperture means in the other direction.
29. A toothbrush as claimed in any of claims 20 to 28 wherein a second or alternative closure means is provided additional to said first mentioned closure means or instead of said first mentioned closure means and comprises a closure member spring-biassed into the closed position to close said duct and urgeable into the open position upon pressurization of the paste; a stop member located within the paste duct and acting to close the outlet opening thereof and being rotatable through 360° by action of said paste urging or displacing means to permit paste to be dispensed to the bristles and subsequently to close the duct; a flexible finger- like tapering member connected to the outlet opening of the paste duct at one end and having an opening at the other end for outlet of paste, said flexible member being closeable upon reduction of paste pressure by the action of the resilient bristles which surround such members; a conical member locatable over the outlet opening means of the paste duct means resiliently closing the point thereof upon relaxation of pressure of paste therewithin; a flexible tubular portion of said paste duct means being displaceable in a passage from a position wherein the end of said flexible pipe is closed to a position extending into the bristle portion for dispensing paste thereto; a manually displaceable piston in the brush supporting member movable from an open to a closed position; a plastic cap locatable over the bristles to protect such and having a pin extending therefrom and locatable in the outlet opening means of the paste duct means; or a bristle carrying member spring biassed in a groove so as to normally open the paste duct means but having a portion extending therefrom engageable by a portion of the handle in the inoperative position to close said paste duct.
PCT/GB1982/000133 1982-05-04 1982-05-04 Improved toothbrush WO1983003742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/GB1982/000133 WO1983003742A1 (en) 1982-05-04 1982-05-04 Improved toothbrush

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP19820901145 EP0107647B1 (en) 1982-05-04 1982-05-04 Improved toothbrush
JP50139782A JPS59500748A (en) 1982-05-04 1982-05-04
PCT/GB1982/000133 WO1983003742A1 (en) 1982-05-04 1982-05-04 Improved toothbrush
DE19823280303 DE3280303D1 (en) 1982-05-04 1982-05-04 Toothbrush.

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WO1983003742A1 true true WO1983003742A1 (en) 1983-11-10

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EP (1) EP0107647B1 (en)
JP (1) JPS59500748A (en)
DE (1) DE3280303D1 (en)
WO (1) WO1983003742A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004314A1 (en) * 1984-03-26 1985-10-10 Peter Arthur Booth Combined toothbrush and toothpaste dispenser
ES2080021A1 (en) * 1994-07-06 1996-01-16 Mejias David Gonzalez System for feeding and blocking off the passage of toothpaste in a brush which incorporates it
ES2080020A1 (en) * 1994-07-06 1996-01-16 Mejias David Gonzalez Head for toothbrushes
WO1997013428A1 (en) * 1995-10-13 1997-04-17 Terence Sidney Robinson Applicator brush
FR2832601A1 (en) * 2001-11-23 2003-05-30 Gerald Greffe Foldable toothbrush comprises brushing head and handle hinged at geometric center, handle end having receptacle which in totally folded position entirely covers bristles
US8939671B2 (en) 2012-02-13 2015-01-27 Eze Products, Inc. Toothbrush with automatic paste dispensing mechanism
US9743750B2 (en) 2012-10-18 2017-08-29 Colgate-Palmolive Company Oral care system

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Publication number Priority date Publication date Assignee Title
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GB194451A (en) * 1922-01-04 1923-03-15 Frank Archibald Wright Improvements relating to tooth brushes
US1540090A (en) * 1923-09-06 1925-06-02 Shapiro Henry Brush
GB264733A (en) * 1926-07-13 1927-01-27 Thomas Seagrave Lord Improvements in and connected with fountain tooth brushes
US1776808A (en) * 1929-07-29 1930-09-30 Hawksley Ralph Goodwin Toothbrush
US1859108A (en) * 1930-07-30 1932-05-17 Nadoolman Fred Dispenser
FR734410A (en) * 1931-04-30 1932-10-21 Improvements to automatic feeding brushes
US1944067A (en) * 1932-11-04 1934-01-16 Claude R Collins Fountain toothbrush
US2025591A (en) * 1935-05-25 1935-12-24 Folsom-Jones Laurie Reservoir applicator
GB527622A (en) * 1939-07-19 1940-10-11 Jose Cervera A combined toothbrush and toothpaste container
US2243774A (en) * 1939-12-22 1941-05-27 Victor J Resh Dispensing device
US2505547A (en) * 1945-02-26 1950-04-25 Frances B Howard Combined foldable toothbrush and powdered dentifrice dispenser
US2596217A (en) * 1950-02-01 1952-05-13 Buford Key S Combined toothbrush holder and powder dispenser
US2845646A (en) * 1955-07-07 1958-08-05 Herbert H Robinson Toothbrush and paste holder
US2908924A (en) * 1958-01-29 1959-10-20 Toby L Turman Fountain toothbrush
US3613698A (en) * 1969-09-26 1971-10-19 Daniel W Fox Dental hygiene unit
GB1336755A (en) * 1970-05-14 1973-11-07 Cesari G Tooth brushes
US3734118A (en) * 1971-11-26 1973-05-22 F Howard Foldable toothbrush with paste supply:and dispenser and covering means
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US3816007A (en) * 1972-07-24 1974-06-11 Prima A De Dental hygiene assembly
US3864047A (en) * 1974-05-23 1975-02-04 James A Sherrod Toothbrush With Resilient Pump for Supplying Paste to Brush
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US4269207A (en) * 1979-12-27 1981-05-26 Czeslaw Konrad Combined toothbrush-toothpaste container
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GB2085717A (en) * 1980-09-25 1982-05-06 Blackwell Victor Campbell Reservoir toothbrush

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004314A1 (en) * 1984-03-26 1985-10-10 Peter Arthur Booth Combined toothbrush and toothpaste dispenser
US4693622A (en) * 1984-03-26 1987-09-15 Booth Peter A Combined toothbrush and toothpaste dispenser
ES2080021A1 (en) * 1994-07-06 1996-01-16 Mejias David Gonzalez System for feeding and blocking off the passage of toothpaste in a brush which incorporates it
ES2080020A1 (en) * 1994-07-06 1996-01-16 Mejias David Gonzalez Head for toothbrushes
WO1997013428A1 (en) * 1995-10-13 1997-04-17 Terence Sidney Robinson Applicator brush
FR2832601A1 (en) * 2001-11-23 2003-05-30 Gerald Greffe Foldable toothbrush comprises brushing head and handle hinged at geometric center, handle end having receptacle which in totally folded position entirely covers bristles
US8939671B2 (en) 2012-02-13 2015-01-27 Eze Products, Inc. Toothbrush with automatic paste dispensing mechanism
US9743750B2 (en) 2012-10-18 2017-08-29 Colgate-Palmolive Company Oral care system

Also Published As

Publication number Publication date Type
DE3280303D1 (en) 1991-03-07 grant
JPS59500748A (en) 1984-05-04 application
EP0107647A1 (en) 1984-05-09 application
EP0107647B1 (en) 1991-01-30 grant

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