CN1226556C - Slide-safety button child-resistant utility lighter - Google Patents

Abstract

A safety mechanism of a utility lighter. In a first preferred embodiment, the safety mechanism includes a safety button and a cam mechanism having a fuel release lever, a cam lever, and a return spring. When the cam mechanism is in the locked position, the cam lever engages the stopper tab of the trigger to impede depression of the trigger, and the fuel release lever closes the fuel release valve. The cam mechanism is actuated by depressing the safety button. As the safety button is depressed, the cam lever is disengaged out of alignment with the stopper tab to permit depression of the trigger, the hub rotates, and the fuel release lever is actuated to open the fuel-release valve. As the safety button is released, the return spring urges the cam mechanism into the locked position.

Description

Slide-safety button child-resistant utility lighter

The application divides an application, and the application number of its original application is 01109184.3, and the applying date is March 19 calendar year 2001, and denomination of invention is " slide-safety button child-resistant utility lighter ".

Technical field

The present invention relates to a kind of multipurpose lighter that comprises insurance parts, these insurance parts comprise a stop button, and wherein, this stop button is opened fuel release valve when front slide, untie trigger.

Background technology

Multipurpose lighter is very useful, is used widely now.This type of multipurpose lighter described herein generally comprises the spark lever of an one handle and an elongation.The shape of multipurpose lighter and operation have some advantages than the general point ignition method.Most importantly, because spark lever is elongation shape, so the operator can stand in from waiting to light a fire the igniting of object safe distance place, thereby prevents potential accident.In addition, multipurpose lighter can be in the local or narrow and small place igniting that can't put in the hand difficulty of match igniting.But do not know safety how, correctly use in people's the hand of multipurpose lighter at children or other, this class igniter produces the same danger of device of Mars and/or flare with any other.Therefore, people recognize, need to be equipped with the insurance parts on the multipurpose lighter, prevent that as far as possible babe in the wood, particularly child accident from using or incorrect use igniter.

Existing many inventions are in order to solve this and security-related problem.In general, these insurance institutions of being introduced of invention make igniter produce Mars automatically and/or make the combustion gas release function of igniter inoperative.For example, some multipurpose lighter uses obstruction mechanism to prevent that trigger from moving the igniting required separation distance.In these igniters, untie this locking mechanism by one " on/off " switch being shifted onto on " on " position or with the barrier of removing on the moving path of trigger plates usually by additive method.

Although above-mentioned various multipurpose lighter provides security to a certain degree, but still the leeway that is improved.Particularly, in these igniters, in a single day locking mechanism (for example on/off switch) is untied, and as not restarting locking mechanism, igniter will keep unlock state.Therefore, for using igniter unlocked mechanism, forget keyed end firearm again as the user after the use again, igniter just loses security, unless restart locking mechanism.

The invention that has is not that trigger can't be depressed when attempting to solve safety problem, but the combustion gas relieving mechanism can't be worked.Certainly, in the multipurpose lighter that comprises a kind of like this mechanism,, therefore on latched position, can't produce flare owing to after locking mechanism is untied, could discharge combustion gas.But this class multipurpose lighter can't prevent to produce Mars.Therefore, this class igniter just part has solved safety problem, because children very nearby or when playing with igniter near carpet, paper or other combustibles, still might cause fire from source of the gas.

Summary of the invention

In order to address the above problem, some locking mechanisms have been introduced in some invention, and these locking mechanisms start behind each use igniter automatically.Therefore, in these igniters, there are two kinds of duties: lock-out state and operable state.Under lock-out state, both can't produce Mars, also can't produce flare.And under operable state, igniter no longer locks, and therefore can produce flare.Although in general this improvement makes security increase, still have room for improvement.

Exactly, in most of dual state, automatically lock in the igniter, in a single day igniter unties trigger under the plate of back, as long as trigger holding plate upper/lower positions, the flare of generation will burn down always.In other words, in a single day locking mechanism is untied, as long as trigger will produce flare under the plate.Still there is safety problem in this, even because children also are easy to accomplish this point.

Therefore, need a kind of like this device, it can not only reach described security purpose aspect the generation flare, and makes inexperienced user or children be difficult to keep flare.Invention as herein described just can provide these two kinds of functions simultaneously.In the present invention, a stop button that generally stretches out must be before trigger under the plate, opened earlier and flare could be produced from the igniter case top.In addition, in the present invention, must be this stop button but not trigger remain under the open mode and just can keep flare; Flare unclamps this stop button after generating, and flare will extinguish.

According to a first aspect of the invention, a kind of multipurpose lighter is provided, comprise an igniter housing, one spark lever that stretches out from described igniter case, one fuel tank, one is used for from the valve of fuel tank release combustion gas, one be connected with valve, the Gas Pipe of crossing point picker bar, one is used for producing the ignition device of spark, and an insurance institution, and this insurance institution comprises: a trigger, be installed in the described igniter case, trigger has and can also have the interior section that places basically in the igniter by the outer surface of user's effect, and this interior section has a locking plate; One securing rod, securing rod has a top surface, top surface has at least one first height and one second height, securing rod is fixed in the described housing, so that prominent interior section to trigger, securing rod meshes ignition device setovering with the locking plate position engaged to prevent the enough distances of trigger slip; One stop button is installed on the described housing, and can move with direction substantially parallel but that be in reverse to trigger; Stop button has a contact surface, a combustion gas release portion and is separated latching segment; Contact surface can be operated by the user, so that opening described valve, the combustion gas release portion discharges combustion gas, separate latching segment this moment and basically and simultaneously separate the second place that latching segment and second of securing rod highly contact from moving to described first primary importance that highly contacts of described securing rod, securing rod is shifted out from the state with the locking plate conflict, light the combustion gas that discharges from valve thereby allow ignition device to be excited by trigger.

According to a second aspect of the invention, a kind of multipurpose lighter is provided, comprise an igniter housing, one spark lever that stretches out from igniter case, one fuel tank, one is used for from the valve of fuel tank release combustion gas, one be connected with valve, the Gas Pipe of crossing point picker bar, one is used for producing the ignition device of spark, and an insurance institution, and this insurance institution comprises: a trigger, be installed in the described igniter case, this trigger has outer surface, can be by user's effect so that excite ignition device, and this trigger places the interior section in the described igniter in addition basically; One locking mechanism, this locking mechanism comprise a securing rod, a locking spring and a locking plate; Securing rod stretches out from the described interior section of described trigger, and this securing rod has a top surface, and this top surface has at least one first height and one second highly; This locking spring can drive in a position with described securing rod, so that securing rod can be setovered against locking plate, prevents that the enough distances of trigger slip from meshing ignition device; One stop button is installed on the housing, and can move with direction substantially parallel but that be in reverse to trigger; Stop button has a contact surface, a combustion gas release portion and is separated latching segment; Contact surface can be operated by the user, so that opening valve, the combustion gas release portion discharges combustion gas, separate latching segment this moment and basically and simultaneously separate the second place that latching segment and second of securing rod highly contact from moving to primary importance that first of securing rod highly contacts, securing rod is shifted out from the state with the locking plate conflict, light the combustion gas that discharges from described valve thereby allow described ignition device to be excited by described trigger.

The unique texture of the stop button among the present invention makes security farthest be improved, even if be not impossible also be difficult to this device of operation because it makes children say.Children can only have open-and-shut idea.Therefore, child wants will be operated the present invention and also only be used common mode and operate the present invention, i.e. trigger under the plate.Yet, because this automatic locking mechanism, trigger can't plate under.Only this feature just can prevent that children from misapplying igniter, because Most of children will simply be abandoned behind the trigger under can't plate attempting several times.

Even children understand the effect of slip stop button when lighting a fire with igniter really, children must understand so, must open stop button earlier before trigger under the plate and could produce flare.This point is generally too obscure concerning children, and children can't grasp or understand.

In addition, even how children understand this device of proper operation, but may still can't this device of practical operation.Because the relative position of trigger and stop button, operation the present invention requires the user to grasp the handle of igniter, opens stop button with thumb, pulls trigger with forefinger.This not only requires the action of hand very dexterous, also requires brothers enough big, and promptly Cheng Ren hand.And the strength of the hand of Most of children also is not enough to successfully operate this igniter.

In addition, though children how to understand this igniter of proper operation, hand also enough big, enough dexterity, enough strength is arranged, thereby can produce flare, but must understand second notion: unless pin stop button otherwise flare can't be kept always.This is again the notion that a children's intelligence is difficult to grasp.Even children grasp this notion, since above-mentioned about children's intelligence and the discussion of being short of physical strength, also be difficult to operation.On the other hand, the adult is not having what difficulty aspect operation the present invention, because this igniter only requires to operate two buttons that are on the key position.

Except above-mentioned all safety advantages, the present invention described herein also makes manufacturing cost reduce greatly, and manufacture process is simplified greatly.

Main purpose of the present invention provides a kind of insurance institution of multipurpose lighter, makes children or inexperienced user unlikely start this igniter.These insurance parts are very important, play because children usually are used as toy to igniter; The mechanical movable part that attracts children to play with is arranged on the igniter.

Another object of the present invention is not only to prevent to produce flare, even also prevents to produce Mars.As previously mentioned, just the combustion gas relieving mechanism can't be worked as an igniter, the children that play with this igniter still can produce Mars with this igniter.According to children's environment of living in, near paper product or other combustible materials, play with igniter as children, Mars still might cause unexpected fire.

Another object of the present invention provides a kind of safest modifying device of use that makes multipurpose lighter, does not reduce the convenience of use simultaneously again.For this reason, installing a stop button additional only increases an operating procedure, for common user, the general point firearm with the insurance parts is the same not simple with use to use this multipurpose lighter, but for children, but increased the use difficulty, thereby prevented that them from misapplying this igniter.

Another object of the present invention is the fire that reduces to meet accident the danger of fire, particularly caused by children, for this reason, unless carry out two independently functions and continue to pin stop button otherwise flare can't be kept.

Last purpose of the present invention is to satisfy all Security Targets, and manufacture process is simplified greatly simultaneously, and the manufacturing cost of each parts at utmost reduces.

From to can clearlyer finding out above-mentioned and other advantages of the present invention the following explanation of accompanying drawing and the DETAILED DESCRIPTION OF THE PREFERRED.

Description of drawings

Fig. 1 is the stereogram of child-resistant utility lighter;

Fig. 2 illustrates how to use child-resistant utility lighter;

Fig. 3 is this igniter first of removing trigger, stop button, locking spring or locking plate

The profile of embodiment;

Fig. 4 is the profile of this igniter first embodiment;

Fig. 5 is the profile of first embodiment, when trigger is in latched position with trigger squeeze under the direction shown in the arrow;

Fig. 6 is the profile of first embodiment, and stop button is with direction translational shown in the arrow, and trigger presses down with direction shown in the arrow;

The same Fig. 6 of Fig. 7, but trigger is forced into the end;

Fig. 8 is the right parallax stereogram of stop button;

Fig. 9 is a stop button left side parallax stereogram;

Figure 10 is the stereogram of the trigger of first embodiment;

Figure 11 is the profile of second embodiment;

Figure 12 is a profile of removing this igniter the 3rd embodiment of trigger, stop button, reed or locking plate;

Figure 13 is the profile of the 3rd embodiment of this igniter;

Figure 14 is the profile of the 3rd embodiment, and trigger is in latched position, and trigger is depressed with direction shown in the arrow;

Figure 15 is the profile of the 3rd embodiment, and stop button is with arrow institute direction translational, and trigger is depressed with direction shown in the arrow.

Figure 16 is the trigger of the 3rd embodiment and the stereogram of securing rod.

The specific embodiment

First general remark piezoelectricity multipurpose lighter (1) (Fig. 1) before describing the improvements that constitute safety component of the present invention in detail.

The parts of multipurpose lighter (1) generally comprise: an igniter housing (10); One usefulness, one bracing ring (110) is contained in the spark lever on this igniter case front end, and this bracing ring slides on the overlapping part of igniter case and spark lever (120); One fuel tank (30) (Fig. 3); One piezoelectric device (40) and a trigger (100).

This igniter case (10) is made of two shell spares that separate along the longitudinal axis of igniter (1).Igniter case (10) has a rear end (10a) (Fig. 1) and a front end (10b), and the bracing ring (110) of a meshing point picker bar (120) is arranged on this front end.Generally be cylindrical this spark lever and comprise that one constitutes the free end and an end of engagement that is connected with the igniter case front end on the top of this igniter (1).Bracing ring (110) slides on igniter case front end and the spark lever end of engagement overlapping part, thereby igniter case and spark lever are linked together.

Igniter (1) has been located a fuel tank (30) in igniter case (10) rear end (10a).The bottom (30a) of fuel tank (30) is over against igniter case rear end (10a), and its top (30b) points to the igniter case front end.One fuel release valve (31) is housed on the fuel tank top (30b).This valve is equipped with spring, therefore is pushed to the closed position usually.Also have a Gas Pipe (32), the nozzle (130) behind this Gas Pipe crossing point firearm on the point of arrival picker bar free end on this valve.This valve is opened during stop button (70) translation.At last, a flare adjusting knob (33) is arranged on the valve (31), rotate this adjusting knob can regulate discharge combustion gas quantity, thereby regulate the flare height.

The next parts of igniter (1) be a piezoelectric device (40) (Fig. 4).This device is contained in the top (30b) of fuel tank, stretches out from described top.The top of this piezoelectric device (40) constitutes sliding part (41).This sliding part (41) is against trigger (100).Generate once lead (42) when promoting this piezoelectric device (40) and pass to the free-ended discharge of spark lever.

The present invention includes a trigger, a locking mechanism and a stop button.

Trigger (100) is contained between the two shell spares of igniter case (10) slidably.The same with common multipurpose lighter, trigger (100) can slidably reciprocate along the longitudinal axis of igniter (1).Trigger (100) has an operating portion (101) that stretches out from igniter case (10), pulls trigger for the user with pointing.

This operating portion generally has a slight concave surface.But according to the present invention, the operating portion (101) of this trigger (100) also can be various different radians.This trigger (100) is against the sliding part (41) of piezoelectric device (40).When trigger was pressed onto the end, this piezoelectric device was got spark.

This locking mechanism comprises a securing rod (71), a locking spring (72) and a locking plate (73).This locking mechanism prevents that trigger is pressed down in stop button (70) translation before the operating position.When stop button was positioned on the operating position, valve was opened, and discharged combustion gas.

This stop button is contained in the igniter case slidably.This stop button comprises that a contact-making surface (74) (Fig. 8 and 9), a back-moving spring (75), a combustion gas release portion (76) and separate lock section (77).This contact-making surface stretches out igniter case and is placed on it for user's finger outward.Stop button moves to its operating position from its initial position when the user pushes away stop button so that arrow A direction (Fig. 6 and 7) is preceding.This back-moving spring is pressed into its initial position to stop button all the time.

The combustion gas release portion (76) of stop button is positioned between valve (31) and the flare adjusting knob (33).The lock section (77) of separating of stop button is positioned at the trigger top.Currently push away, during the translation stop button, combustion gas release portion opens this valve, discharges combustion gas.

First embodiment of the invention comprise a trigger (100) (Fig. 4), a locking plate (73), a stop button (70) and a locking spring (72).This trigger (100) comprises an operating portion (101), a securing rod (71), a projection (78) and a locking spring (72).This locking plate is formed on the top of fuel tank.This locking spring is contained on the igniter case, all the time trigger is pressed into latched position.

As trigger squeeze (Fig. 5) only down but before do not push away stop button, consequently securing rod is against locking plate.Therefore can't depress piezoelectric device.

Before push away stop button and cause and separate lock section (77) and (Fig. 6) interact with projection (78).This interaction of separating between lock section and the projection presses down securing rod, and itself and locking plate are broken away from.Projection must be enough high, so that securing rod moves the distance that is enough to the locking plate disengaging.Therefore, trigger can press down, thereby depresses piezoelectric device.

In case the generation flare only just can be kept flare when continuing the supply combustion gas.Only pin trigger (100) and can't keep flare.Only when pinning stop button (70), just continue to supply combustion gas.

Back-moving spring pushes its initial position to stop button when decontroling stop button.Therefore, the securing rod of trigger (71) is got back to latched position, and valve (31) is got back to the closed position.In case on latched position, the securing rod of trigger (71) is again against locking plate (73).Therefore, this igniter locking once more automatically.

Second embodiment of the invention comprise a trigger (100) (Figure 11), a stop button (70), a securing rod (71) and a locking spring (72).

This securing rod comprises first end (81) and second end (91).Second end of this securing rod is contained on the igniter case with pivot.One locking plate (73) fuses with trigger (100).This locking plate (73) is against first end (81) of securing rod (71).Interaction between first end of locking plate and securing rod locks this trigger, and therefore, trigger can't press down.Locking spring (72) is pressed into latched position to securing rod.

The lock section (77) of separating of stop button (70) comprises an inclined plane part (83).Current when pushing away stop button, this inclined plane part is against securing rod (71) and press down this securing rod.When securing rod was pressed down, securing rod and locking plate (73) broke away from.Therefore push away stop button before and make the trigger release, can descend trigger squeeze then, press down piezoelectric device.

In case the generation flare only just can be kept flare when continuing the supply combustion gas.Only pin trigger (100) and can't keep flare.Only when pinning stop button (70), just continue to supply combustion gas.

Back-moving spring (75) pushes its initial position to stop button when decontroling stop button.In a single day stop button is in its initial position, and securing rod (71) is got back to latched position under the elastic force effect of locking spring (72), and valve (31) is got back to the closed position.When securing rod was got back to latched position, securing rod (71) was again against locking plate (73).Therefore this igniter locking once more automatically.

Third embodiment of the invention (Figure 12～16) comprises a trigger (100), a locking plate (73), a stop button (70), a securing rod (71) and a hammerlock spring or arm spring (84).

Securing rod (71) has first end (140), second end (141) and a projection (78).Second end of securing rod is contained on the umbo (142) that is extended by igniter case (10) with pivot.Trigger (100) comprises locking plate (73).Locking plate is against first end of securing rod.Interaction between first end of locking plate and securing rod locks this trigger, and therefore, trigger can't press down initial igniter (1).

Arm spring (84) has a support arm (85) and a coil-end (86).The coil-end of arm spring is securely on umbo (142).Support arm extends radially out and is offset on the bottom surface of securing rod from the coil-end of arm spring.The arm spring is pressed into latched position to securing rod.

The lock section (77) of separating of stop button (70) comprises an inclined plane part (83).When promoting stop button, this inclined plane part is against securing rod and press down this securing rod.Projection must be enough greatly with mobile securing rod enough distances extremely, making it can be against locking plate (73).When securing rod was pressed down, this securing rod broke away from locking plate (73).Thus, start stop button and remove trigger (100) locking, trigger can be depressed and start piezoelectric device (40) at this moment.

In case the generation flare only just can be kept flare when continuing the supply combustion gas.Only pin trigger (100) and can't keep flare.Only when pinning stop button (70), just continue to supply combustion gas.

When decontroling stop button (70), back-moving spring (75) pushes its initial position to stop button.In a single day stop button is in its initial position, and securing rod (71) is got back to latched position under the elastic force effect of arm spring (84), and valve (31) is got back to the closed position.When securing rod was got back to latched position, securing rod was again against locking plate (73).Therefore this igniter locking once more automatically.

Claims (2)

1. multipurpose lighter, comprise an igniter housing, one spark lever that stretches out from described igniter case, one fuel tank, one valve that is used for discharging combustion gas from described fuel tank, a Gas Pipe that is connected, passes described spark lever with described valve, one is used for producing the ignition device of spark, and an insurance institution, described insurance institution comprises:

One trigger is installed in the described igniter case, and described trigger has can be by the outer surface of user's effect, and described trigger also has the interior section that places basically in the described igniter, and described interior section has a locking plate;

One securing rod, described securing rod has a top surface, described top surface has at least one first height and one second height, described securing rod is fixed in the described housing, so that prominent described interior section to described trigger, described securing rod meshes described ignition device setovering with described locking plate position engaged to prevent the enough distances of described trigger slip;

One stop button is installed on the described housing, and can move with direction substantially parallel but that be in reverse to described trigger;

Described stop button has a contact surface, a combustion gas release portion and is separated latching segment;

Described contact surface can be operated by the user, so that opening described valve, described combustion gas release portion discharges combustion gas, this moment is described separates latching segment basically and simultaneously from moving to the described second place that latching segment and second of described securing rod highly contact of separating with described first primary importance that highly contacts of described securing rod, described securing rod is shifted out from the state with described locking plate conflict, light the combustion gas that discharges from described valve thereby allow described ignition device to be excited by described trigger.

2. multipurpose lighter, comprise an igniter housing, one spark lever that stretches out from described igniter case, one fuel tank, one valve that is used for discharging combustion gas from described fuel tank, a Gas Pipe that is connected, passes this spark lever with this valve, one is used for producing the ignition device of spark, and an insurance institution, described insurance institution comprises:

One trigger is installed in the described igniter case, and described trigger has outer surface, can be by user's effect so that excite ignition device, and described trigger places the interior section in the described igniter in addition basically;

One locking mechanism, described locking mechanism comprise a securing rod, a locking spring and a locking plate;

Described securing rod stretches out from the described interior section of described trigger, and described securing rod has a top surface, and described top surface has at least one first height and one second highly;

Described locking spring can drive in a position with described securing rod, so that described securing rod can be setovered against described locking plate, prevents that the enough distances of described trigger slip from meshing described ignition device;

One stop button is installed on the described housing, and can move with direction substantially parallel but that be in reverse to described trigger;

Described stop button has a contact surface, a combustion gas release portion and is separated latching segment;

Described contact surface can be operated by the user, so that opening described valve, described combustion gas release portion discharges combustion gas, this moment is described separates latching segment basically and simultaneously from moving to the described second place that latching segment and second of described securing rod highly contact of separating with described first primary importance that highly contacts of described securing rod, described securing rod is shifted out from the state with described locking plate conflict, light the combustion gas that discharges from described valve thereby allow described ignition device to be excited by described trigger.

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