GB2450729A - A Safety Flint Lighter with Lockable Spark Wheel - Google Patents
A Safety Flint Lighter with Lockable Spark Wheel Download PDFInfo
- Publication number
- GB2450729A GB2450729A GB0712965A GB0712965A GB2450729A GB 2450729 A GB2450729 A GB 2450729A GB 0712965 A GB0712965 A GB 0712965A GB 0712965 A GB0712965 A GB 0712965A GB 2450729 A GB2450729 A GB 2450729A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- lock member
- safety lock
- flint
- lighter
- 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- Withdrawn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
- 210000003813 thumb Anatomy 0.000 claims description 6
- 239000000446 fuel Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q2/00—Lighters containing fuel, e.g. for cigarettes
- F23Q2/16—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
- F23Q2/164—Arrangements for preventing undesired ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q2/00—Lighters containing fuel, e.g. for cigarettes
- F23Q2/16—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
- F23Q2/161—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase with friction wheel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lighters Containing Fuel (AREA)
Abstract
A flint safety lighter (12 fig 1) has a safety lock member 3 pivotally mounted adjacent an ignition wheel 4. The ignition wheel frictionally engages a flint to produce a spark, and the safety lock member 3 is urged against the periphery of the wheel to prevent inadvertent operation. The lock member may be pivotally mounted and may be shaped such that a portion has a curvature that matches the wheel curvature. The locking arrangement may include a butterfly spring (2 fig 3) that can rotate away from the wheel in the opposite direction to the rotation of the wheel, in order to effect release. The locking arrangement prevents use of the lighter by children.
Description
245w 729
SAFETY LIGHTER
The present invention relates to a safety lighter, Particularly to a flint lighter having a safety mechanism.
S
A conventional lighter comprises a lighter casing and a head portion mounted on the lighter casing. A nozzle, a flint, an actuator member to open/close a fuel reservoir, a wheel contacting the flint and a guard are provided within the head portion. In operation, a user rotates the wheel to cause the flint to generate the sparks required for ignition.
Such lighters are of course very well known in the art.
It is known in the art to provide a flint lighter with some safety features. However, such lighters are either not easy to use or not secure enough to prevent use by children.
It has been desired for a number of years to provide flint lighters with some safety features which prevent accidental use of the lighter or operation of the lighter by children, which are easy to use by adults and secure.
An object of the present invention is to provide a flint lighter with a safety mechanism to achieve at least one of the above advantages.
The present invention provides a safet' flint lighter, comprising: a lighter casing; a head portion having an actuator member and a wheel, the wheel being rotatable in frictional engagement with a flint to generate sparks; and a safety lock member moveably mounted on the head portion and extending over the periphery of the wheel, the safety lock member being urged against the wheel by a return spring to prevent rotation of the wheel; wherein in use, the safety lock member is moveable away from the wheel to allow the rotation of the wheel.
Preferably the safety lock member is pivotably mounted at one end thereof, the pivot axis being substantially parallel to the axis of rotation of said wheel wherein in use the safety lock member is rotatable by a user's thumb away from said wheel and said wheel is rotatable by the user's thumb in an opposite sense to generate sparks for ignition.
The above operation requires a degree of dexterity which is beyond the ability of children.
Preferred features are defined in the dependent claims.
Preferred features are defined in the dependent claims.
A preferred embodiment of the invention is described below by way of example only with reference to Figures 2. to 4 of the accompanying drawings, wherein: Figure 1 is a front view of a flint lighter of Fig. 2.
wit a safety mechanism in a locked configuration; Figure 2 is a top view of the lighter of Fig. 1; Figure 3 is an enlarged view of the above safety mechanism; and Figure 4 is a front view of the lighter with the safety mechanism is an unlocked position configuratfon.
Referring to Figs. 1 and 3, a lighter 12 having a safety mechanism includes a conventional lighter casing 10 and head portion H mounted thereon. A nozzle (not shown), a flint (not shown), an actuator member 6 to open/close a fuel reservoir (not shown), an ignition wheel 4 contacting the flint and a guard S are provided within the head portion. A safety lock member 3 with one end pivotally mounted on the guard 5 is acted on by one arm 2A of a butterfly spring 2 mounted on an axle carried by the head portion and defining the pivot axis (X) of the safety lock member, the other arm 2B engaging a projection 1 from the main body. The front portion of the safety lock member is urged downwardly against the cylindrical periphery of the wheel to prevent rotation of the wheel. In this configuration, as shown in Figure 1, the wheel cannot be rotated by a user's thumb T to generate the sparks required for ignition. This safeguards the lighter against accidental use or use by children, for example.
Referring now to Fig. 4, to operate the lighter 12, the safety lock member 3 has to be rotated upwardly about the axis X. On moving the safety lock member away from the wheel 4, a user can rotate the wheel 4 to generate sparks for ignition of the lighter fuel. Upon comp1etionof rotation of the wheel 4, the butterfly spring 2 urges the safety lock member 3 back to the locked position of Fig. 1.
Thus the lighter 12 can only be operated by a user's thumb P by firstly swinging the safety lock member 3 away from the wheel 4 (in a first rotational sense) and then rotating the wheel 4 (in the opposite sense), which will be difficult to achieve accidentally and which will be impossible for children. In addition, once the operation has been finished, the safety lock member is automatically returned to the locked position of Fig. 1, which contributes to the safety of the design.
Claims (6)
- CLAIMS: 1. A flint lighter, comprising: a lighter casing; a headportion having an actuator member and a wheel, the wheel being rotatable in frictional engagement with a flint to generate sparks; and a safety lock member moveably mounted on the head portion and extending over the periphery of the wheel, the safety lock member being urged against the wheel by a return spring to prevent rotation of the wheel; wherein in use, the safety lock member is moveable away from the wheel to allow the rotation of the wheel.
- 2. A flint lighter according to claim 1 wherein the safety lock member is pivotably mounted at one end thereof, the pivot axis being substantially parallel to the axis of rotation of said wheel, wherein in use the safety lock member is rotatable by a user's thumb away from said wheel and said wheel is rotatable by the user's thumb in an opposite sense to generate sparks for ignition.
- 3. A flint lighter according to claim 1 or claim 2 wherein the return spring is a butterfly spring mounted on an axle secured to the head portion, said safety lock member being pivotally mounted on said axle.
- 4. A flint lighter according to any preceding claim, wherein a portion of the safety lock member facing the wheel is curved towards the wheel.
- 5. A flint lighter according to claim 4, wherein the curvature of said portion of the safety lock member matches the shape of the wheel.
- 6. A flint lighter substantially as described hereinabove with reference to Figures 1 to 4 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0712965A GB2450729A (en) | 2006-10-26 | 2007-07-04 | A Safety Flint Lighter with Lockable Spark Wheel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610006816 | 2006-10-26 | ||
| GB0712965A GB2450729A (en) | 2006-10-26 | 2007-07-04 | A Safety Flint Lighter with Lockable Spark Wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0712965D0 GB0712965D0 (en) | 2007-08-15 |
| GB2450729A true GB2450729A (en) | 2009-01-07 |
Family
ID=38440379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0712965A Withdrawn GB2450729A (en) | 2006-10-26 | 2007-07-04 | A Safety Flint Lighter with Lockable Spark Wheel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2450729A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236351A (en) * | 1993-01-13 | 1993-08-17 | Tien Andrew S H | Safety interlocks for a cigarette lighter |
| WO2003008867A1 (en) * | 2001-07-16 | 2003-01-30 | Tokai Corporation | Gas lighter |
-
2007
- 2007-07-04 GB GB0712965A patent/GB2450729A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236351A (en) * | 1993-01-13 | 1993-08-17 | Tien Andrew S H | Safety interlocks for a cigarette lighter |
| WO2003008867A1 (en) * | 2001-07-16 | 2003-01-30 | Tokai Corporation | Gas lighter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0712965D0 (en) | 2007-08-15 |
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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) |