GB2081570A - Improvements in dental care equipment - Google Patents
Improvements in dental care equipment Download PDFInfo
- Publication number
- GB2081570A GB2081570A GB8122324A GB8122324A GB2081570A GB 2081570 A GB2081570 A GB 2081570A GB 8122324 A GB8122324 A GB 8122324A GB 8122324 A GB8122324 A GB 8122324A GB 2081570 A GB2081570 A GB 2081570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handle
- head
- bore
- toothbrush
- snap
- 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.)
- Withdrawn
Links
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 230000000717 retained effect Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 231100000206 health hazard Toxicity 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229940034610 toothpaste Drugs 0.000 claims description 2
- 239000000606 toothpaste Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
- F16B21/071—Releasable fastening devices with snap-action in which the socket has a resilient part the socket being integrally formed with a component to be fasted, e.g. a sheet, plate or strip
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/0095—Removable or interchangeable brush heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G3/00—Attaching handles to the implements
- B25G3/02—Socket, tang, or like fixings
- B25G3/04—Socket, tang, or like fixings with detachable or separate socket pieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G3/00—Attaching handles to the implements
- B25G3/02—Socket, tang, or like fixings
- B25G3/12—Locking and securing devices
- B25G3/18—Locking and securing devices comprising catches or pawls
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
- F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
- F16B21/186—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Brushes (AREA)
Abstract
A toothbrush comprises an elongate plastics handle (10) and a detachable plastics head (12) carrying bristles (14). In order to achieve a releasable connection between the head and the handle, the head has an axially projecting spigot (16) which is slidably insertable into a hore (18) in the handle and is retained therein for normal use by means of a clip 20 disposed within the handle which is adapted to make a snap-fitting engagement with a circumferential groove 22 on the free end of the spigot 16. Relative rotation of the head and handle is prevented by the provision of a pin fitting in a hole, or a parallel sided slot 24 on the end of the handle which slidably receives a rectangular sectioned end portion of the head. <IMAGE>
Description
SPECIFICATION
Improvements in dental care equipment
The present invention relates to dental care
equipment and is concerned particularly with tooth
brushes.
Conventional tooth brushes comprise an elongate
handle attached to a head which carries a plurality of
bristles. Normally, the head and handle are formed
as a unitary moulded component from a plastics
material, such as nylon. The bristles can also be of a
plastics material or can be of natural fibres.
It has long been appreciated that there would be advantage in forming the head and handle sepa
rately so that, for example, a single handle can be
fitted selectively with a desired one of a plurality of
heads, each of which has a different operating
characteristic. For example, the bristles on the vari
ous heads could have different stiffnesses (hard,
soft, medium, etc.), the bristle areas could be of dif
ferent sizes and the heads themselves could be of
different sizes.
Known brushes designed for this purpose (see for
example (GB Patent Specification No. 216355) have
had the disadvantage that the means adopted for
attaching the handle to the various heads has
included metal parts, such as a metal socket, dis
posed within the head. Such metal parts inevitably
get wet or damp during or after use of the tooth
brush, so that eventually parts of the head become
rusty, thereby creating at best an unsightly appear
ance and at worst a health hazard.
It is an object of the present invention to provide
an improved arrangement for attaching the handle
to the various heads which avoids the disadvantages
of the known devices.
In accordance with the present invention there is
provided a toothbrush comprising an elongate
handle, a head carrying a plurality of bristles, the
head being detachably connectible to the handle by
way of a projection on the head which is slidably
insertable into a bore in the handle and is normally
retained therein by means of a snap-fit connector
carried by the handle, and means for preventing
relative rotation of the handle and head when the
handle and head are in their interconnected state.
The invention is described further hereinafter by
way of example only, with reference to the accom
panying drawings, in which:
Fig. 1 is a diagrammatic side view of one embodi
ment of a toothbrush in accordance with the present
invention, with the head shown separated from the
handle; and
Fig. 2 is an enlarged scale section on the line A-A
in Fig. 1.
The toothbrush shown in Figs. 1 and 2 comprises
an elongate plastics handle 10, for example of nylon,
by which the brush is adapted to be manually grip
ped, and an elongate plastics head 12 carrying a
plurality of bristles 14. Extending longitudinally from
one end of the head is a spiggot 16 which is preferably of circular cross section and is insertable into correspondingly sectioned bore 18 in an enlarged end portion 10a of the handle, the bore 18 being dimensioned so that the spiggot is slidably received therein with minimal lateral play.Disposed adjacent the blind end ofthe bore 18 is a spring clip 20, shown only diagrammatically in Fig. 1, which presents a pair of parallel spring-loaded wire portions 21a, 21b which extend across the bore for engaging a circumferential groove 22 at the free end of the spiggot 16 when the spiggot is fully inserted into the bore.
This arrangement provides a snap-fitting engagement for retaining the head on the handle during normal usage, but which will easily release the head from the handle simply by manually pulling the head and handle in opposite longitudinal directions.
In order to prevent relative rotation of the handle and the head, the head has a rectangular transverse cross section and the free end of the enlarged portion 10a of the handle has a parallel sided slot 24 dimensioned to receive part of the rectangular head with a close sliding fit therebetween.
Other alternative means of preventing relative rotation could be provided. Thus, for example, the head or handle could carry a longitudinally projecting pin adapted to be received in a correspondingly dimensioned hole in the handle or head, respectively.
Other, alternative means of locking the spiggot 16 within the bore 18 could be provided. For example, the spring clip need not be a wire clip but could be a metal or plastics washer-type clip or any other type of snap-fitting device which can be released by sufficient application of force thereto in a predetermined longitudinal direction. In other embodiments, the locking means could be in the form of a poppet connector wherein the spiggot 16 is formed at its free end with a spherical projection and the blind end of the bore has a suitable flexible aperture for receiving the projection with a snap-fit.
An advantage of the abovedescribed brushes is that the head contains no metallic parts which could rust, nor does the head contain any apertures which could form pockets where particles could collect. It will also be noted that when the head is connected to the handle there is virtually no possibility of water, toothpaste or other liquid, entering the bore 18 to get to the clip 20. The latter clip can, therefore, safely be made of metal. However, preferably, the clip is also made of a plastics material where allowed by the process of formation of the handle.
1. A toothbrush comprising an elongate handle, a head carrying a plurality of bristles, the head being detachably connectible to the handle by way of a projection on the head which is slidably insertable into a bore in the handle and is normally retained therein by means of a snap-fit connector carried by the handle, and means for preventing relative rotation of the handle and head when the handle and head are in their interconnected state.
2. A toothbrush as claimed in claim 1, wherein
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (7)
1. A toothbrush comprising an elongate handle, a head carrying a plurality of bristles, the head being detachably connectible to the handle by way of a projection on the head which is slidably insertable into a bore in the handle and is normally retained therein by means of a snap-fit connector carried by the handle, and means for preventing relative rotation of the handle and head when the handle and head are in their interconnected state.
2. A toothbrush as claimed in claim 1, wherein said snap-fit connector comprises a spring clip disposed adjacent a blind end of said bore and which is adapted to releasably engage a circumferential groove at the free end of said projection on the head.
3. Atoothbrush as claimed in claim 1, wherein said snap-fit connector comprises a spherical extension to said projection which is adapted to be releasably engaged by a flexible aperture within said bore in the manner of a poppet connector.
4. Atoothbrush as claimed in claim 1,2 or 3, wherein said rotation preventing means comprises a parallel sided slot in one end of the handle which is adapted to slidably receive a rectangular sectional end portion of the head with a tight sliding fit there.
between.
5. A toothbrush as claimed in claim 1,2 or3, wherein said rotation preventing means comprises a pin on the handle or head adapted to be received in a hole in the head or handle, respectively.
6. A toothbrush set comprising one said handle and a plurality of said heads.
7. A toothbrush substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8122324A GB2081570A (en) | 1980-07-19 | 1981-07-20 | Improvements in dental care equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8023693 | 1980-07-19 | ||
GB8122324A GB2081570A (en) | 1980-07-19 | 1981-07-20 | Improvements in dental care equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2081570A true GB2081570A (en) | 1982-02-24 |
Family
ID=26276277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8122324A Withdrawn GB2081570A (en) | 1980-07-19 | 1981-07-20 | Improvements in dental care equipment |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2081570A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2125092A (en) * | 1982-08-02 | 1984-02-29 | Jau Tsong Hwang | Fastening devices |
FR2572909A1 (en) * | 1984-11-13 | 1986-05-16 | Namias Michel | Toothbrush with interchangeable heads |
GB2188691A (en) * | 1986-04-01 | 1987-10-07 | John William Stamper | Quick release plug |
US4875248A (en) * | 1988-03-23 | 1989-10-24 | Colgate-Palmolive Company | Adjustable toothbrush |
US5033154A (en) * | 1990-02-02 | 1991-07-23 | Paul Marchand | Adjustable head toothbrush |
DE4019830A1 (en) * | 1990-06-21 | 1992-01-02 | Inoue Attachment K K | Power driven tooth-brush - has bristles held between two wires which are twisted together |
US5105499A (en) * | 1991-03-01 | 1992-04-21 | The Procter & Gamble Company | Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure |
US5146645A (en) * | 1991-03-01 | 1992-09-15 | The Procter & Gamble Company | Toothbrush employing resiliently buckling arch to indicate excessive brushing pressure |
GB2258884A (en) * | 1991-08-02 | 1993-02-24 | Andrew William Turner | Tie ring |
US5361446A (en) * | 1993-05-06 | 1994-11-08 | Mark Rufo | Toothbrush |
US5673452A (en) * | 1996-08-12 | 1997-10-07 | Chang; Ching-Min | Toothbrush |
US5896615A (en) * | 1997-04-28 | 1999-04-27 | Colgate-Palmolive Company | Interdental brush |
WO2009062343A1 (en) * | 2007-11-15 | 2009-05-22 | Xinchu Chen | Detachable toothbrush |
GB2556019A (en) * | 2016-07-15 | 2018-05-23 | J K & S Ltd | A Modular Manual Toothbrush |
CN111012028A (en) * | 2019-11-28 | 2020-04-17 | 安徽省潜山县志发机电配件有限公司 | Civil cleaning brush with replaceable brush head |
-
1981
- 1981-07-20 GB GB8122324A patent/GB2081570A/en not_active Withdrawn
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2125092A (en) * | 1982-08-02 | 1984-02-29 | Jau Tsong Hwang | Fastening devices |
FR2572909A1 (en) * | 1984-11-13 | 1986-05-16 | Namias Michel | Toothbrush with interchangeable heads |
GB2188691A (en) * | 1986-04-01 | 1987-10-07 | John William Stamper | Quick release plug |
US4875248A (en) * | 1988-03-23 | 1989-10-24 | Colgate-Palmolive Company | Adjustable toothbrush |
US5033154A (en) * | 1990-02-02 | 1991-07-23 | Paul Marchand | Adjustable head toothbrush |
DE4019830A1 (en) * | 1990-06-21 | 1992-01-02 | Inoue Attachment K K | Power driven tooth-brush - has bristles held between two wires which are twisted together |
US5105499A (en) * | 1991-03-01 | 1992-04-21 | The Procter & Gamble Company | Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure |
US5146645A (en) * | 1991-03-01 | 1992-09-15 | The Procter & Gamble Company | Toothbrush employing resiliently buckling arch to indicate excessive brushing pressure |
GB2258884A (en) * | 1991-08-02 | 1993-02-24 | Andrew William Turner | Tie ring |
GB2258884B (en) * | 1991-08-02 | 1994-10-19 | Andrew William Turner | Tie ring |
US5361446A (en) * | 1993-05-06 | 1994-11-08 | Mark Rufo | Toothbrush |
US5673452A (en) * | 1996-08-12 | 1997-10-07 | Chang; Ching-Min | Toothbrush |
US5896615A (en) * | 1997-04-28 | 1999-04-27 | Colgate-Palmolive Company | Interdental brush |
WO2009062343A1 (en) * | 2007-11-15 | 2009-05-22 | Xinchu Chen | Detachable toothbrush |
GB2556019A (en) * | 2016-07-15 | 2018-05-23 | J K & S Ltd | A Modular Manual Toothbrush |
CN111012028A (en) * | 2019-11-28 | 2020-04-17 | 安徽省潜山县志发机电配件有限公司 | Civil cleaning brush with replaceable brush head |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |