DE1782928A1 - LIGHTER WITH A HAND-OPERATED ELECTRIC LIGHTING MECHANISM TO GENERATE A SPARK LIGHTING THE FUEL FLAME BETWEEN TWO ELECTRODES - Google Patents

Description

BRQSE ^D "BROSE

D-8023 Munich-Pullach, Wiener Str. 2; Tel. (089) 7 93 X 71; Telex 5212147 bros d; Cables: "Patentibus" Munich

Graduate engineer

Your mark: Day: 25- March 1976

Your ref .: Date:

TETRA MOLECTRIC LIMITED, 2 Raymond Buildings, Gray's Inn, London WCl, England

Lighter with a hand operated electric ignition mechanism for generating the fuel lamella between two electrodes of igniting spark.

Addendum to patent. (Patent application

P 17 82 788.2-23 of December 20, 1971)

Separation from patent application P 17 82 788.2-23

Through the patent (patent application P 17 82 788.2-23)

is a lighter with a hand operated electric ignition mechanism for generating a fuel flame between two electrodes of igniting spark and with an operating handle for a mechanical electrical one Converter protected, whereby a spring biasing a piston is tensioned by the actuation of the handle is and the piston is initially locked against free movement when the handle is actuated and only after a certain actuation path of the handle for the mechanical electrical conversion processes in his

609831/0353

y? 829.2 8

Movement is released. After the proposal of the invention of The main patent is such a lighter as a gas lighter known per se and the transducer as a piezoelectric transducer formed a piezo element and the piston is arranged between the piezo element and the spring and the relaxation The free movement of the piston triggered by the spring suddenly stopped in order to rapidly compress the piezo element to effect.

By the invention of the main patent, a lighter is created in this way, in which for the electrical ignition mechanism no consuming power source is required, the expenditure on electrical components and circuit parts is very low is and above all the entire lighter in terms of space requirements and weight so small and compact is that e3 also meets the requirements of a pocket lighter will.

The present invention relates to a further development and particularly expedient embodiment of the invention according to the main patent and has set itself the goal, in particular, of optimizing a lighter according to the main patent with regard to low weight and low space requirements. According to the invention, this is essentially achieved in that the handle is designed to be rotatable and equipped with a Stixflhscheibe, which the piston is connected downstream, in such a way that when the stepped disc rotates, the piston rises up on a step surface to compress the spring and exceed it a step at the end of the step surface for; a free movement is relieved. According to the invention; proposed stages disc thereby provides a particularly a-- · fold design a handle for lighters to the main patent is _# which respect for their function of tension and relief of the piston particularly effective j | kt and with respect to their insertion low in the overall structure of the lighter design requirements represents. ι

609831/03 5 3

The invention is illustrated by way of example in the drawing.

In the exemplary embodiment shown in the drawing, a piezoelectric body 100 is mounted between disks 101 and 102. The disk 101 rests on a screw 103 in the housing 104 _f while the disk 102 rests on the lever 105. The lever lies on a step 106 in the housing and its free end lies under a piston body 107 which is under the pressure of a spring 108 which is supported by a screw 109 in the housing. The piston 10? has a shoulder 110, which is pressed by the spring 108 against a saw tooth-shaped stepped disk 111, the circumference of which partially protrudes from the housing and is knurled on its circumference so that the user's fingers can grip there. As can be seen, as the stepped disk 111 rotates, the spring 108 is gradually tensioned in that the piston 110 rises up on a step surface. When the step is exceeded, the spring 108 is suddenly relaxed and the downward movement of the piston 110 is released until it is stopped by the lever 105 and the shock is then transmitted to the piezo body 100 by the lever 105 and amplified.

As indicated by dashed lines, ignition lines go from the disks 101 and 102 to the ignition electrodes.

All details which can be seen in the description and shown in the drawing are important for the invention.

809831/0353

Claims (1)

-H- PATENT CLAIM Lighter with a hand-operated electric ignition mechanism for generating a fuel flame between two electrodes igniting spark and with an actuating handle for a mechanical electrical converter, whereby by actuating the Handle a spring biasing a piston is tensioned and the piston is initially tensioned against a free one when the handle is actuated Mobility is locked and is only released after a certain actuation path of the handle for the mechanical electrical conversion processes in its movement, the lighter as a known gas lighter and the transducer as a piezoelectric The transducer is designed with a piezo element and the piston is arranged between the piezo element and the spring and the free movement of the piston is suddenly stopped to cause rapid compression of the piezo element according to patent (patent application P 17 82 788.2-23), characterized in that the handle (111) is designed to be rotatable and is equipped with a stepped disk (111), which the piston (110) is connected downstream, in such a way that upon rotation the stepped disk (111), the piston (110) rises up on a step surface in order to compress the spring (108) and when crossing a step at the end of the step surface is relieved for free movement. 60983 1/0 35 3