IMPROVED CORKSCREW

Abstract: Improved corkscrew, built up of a metal chassis (2) respect to which the top part (5) is incorporated for the support on the corresponding bottle during the uncorking and the insertion of the drill (6) in the cork to be extracted, being formed the top part (5) of a set of two telescopically connected parts (8) and (9), which can be blocked in an extended position by means of a retaining element activated by a flexible pusher, to allow the progressive positioning during the uncorking leverage.

Description: Among the multiple types of existent corkscrews, of a manual type, there are those built up of a grip in which a helicoidal drill is introduced in an articulated way, to be inserted into the corks to be extracted and an upper part to rest on the edge of the bottle outlet. The currently well-known corkscrews and whose use is very widespread, base their operation on the activation of a type of lever of the second generation: intervention point at an end on the outlet edge, resistance in the central area (this is the cork to be extracted) and the power on the other end (power exercised with the user's hand). A corkscrew of this type is the one that constitutes the object of the Utility Model 260.177. The elementary corkscrews of this type have the inconvenience that, as generally the length of the cork is bigger than the lever size, it is necessary to take out first a section of the cork and in a second operation, introducing the drill more into the cork, by means of a new lever action reach the total extraction of the cork. Moreover the risk is also run that the cork plug gets cracked and as a result its breakage and the resulting difficulties. To overcome this inconvenience, some solutions have already been developed with double stop, so as to allow, by means of two different resting points, the complete extraction of the cork plugs without the need to introduce the drill deeper a second time. However, the already known solutions are based on realizations that force to an annoying manipulation, as the change of the top from the first resting point to the second one requires a not very comfortable manipulation for the user as he has to use both hands to carry it out. In fact, the solution indicated in the Utility Model 9200910 (ES 1020637 ) is known, for example, in which the upper part which establishes the double resting point is built up in two parts with an articulation shaft in between; so that the user first supports the section nearest to the grip and then, once part of the cork has been taken out, this support is taken away and the second support, which is further away from the grip, is put in contact with the outlet of the bottle neck, taking out the entirety of the cork. For this double operation, the user requires the use of both hands to situate both resting points correctly. In these circumstances, the bottle has to be reclined somewhere while the operation to change over from the first support to the second one is carried out, which is annoying for the main users of this kind of corkscrew, being professionals from the hotel and restaurant business sector, as the most customary is to come close to a table where the bottle is going to be used, to carry the bottle in one hand and with the other use the corkscrew to extract the plug, being the ideal that without having to leave the bottle and by only manipulating the corkscrew with one hand, the cork plug can be extracted, which with this kind of corkscrew is really difficult. In the Utility Model 9602975 (ES 1035671 U) another version of this kind of corkscrew is disclosed, in which now the top piece which establishes the double support of the corkscrew incorporates in its central area a lever piece that is able to rotate between a position in which it is hidden and another position in which it stands out to become the first support of the corkscrew; so that once extracted a first part of the corresponding cork, the user should rotate this lever piece and take it till its concealment position, situating then the second support of the top piece of the corkscrew against the bottle outlet. Again, in the Utility Model 9701089 (ES 1037056 U) it is disclosed a balance beams solution, which requires first the installation of a support against the bottle neck and then a second support. This operation is very annoying to be carried out with only one hand. This means that these known solutions make use of a double resting point of the corkscrew for the uncorking function. Again in the Utility Model 9701089 (ES 1037056 U), a version is indicated with rockers which require a first support to be placed against the bottle neck and then a second resting point, operation which is really annoying to be carried out with only one hand. This means that these known solutions work around a double resting point of the corkscrew for the uncorking operation. There is also a solution, according to Patent EP 0860396, based on a telescopic concept of the supporting piece for the leverage action of the uncorking operation, in which the concept of a double support is maintained, in the way that by means of a first support, a partial extraction of the corks is carried out, while by means of the second support, different to the first one, the posterior complete extraction of the corks is carried out till the end. In accordance with the present invention, a corkscrew is proposed which solves in a more satisfactory way the inconvenience of the double support, based on the realization which offers very advantageous constructive and functional characteristics, according to which one unique first support is needed, so that the user can extract the whole cork by manipulating the corkscrew with only one hand and in a very comfortable and absolutely normal way, as we will see hereafter. This corkscrew, object of the invention, consists in a chassis carried out preferably in stainless steel microfusion and embedding, which is built up of lever functions, incorporating the articulation of the drill to be inserted in the cork and the upper part to use as a resting point during the leverage while uncorking, with the particularity that the mentioned top piece is built up of an extensible telescopic set till an enlarged position in fixed blocking, the mentioned extension can be actuated on by simple tilting the lever towards the back in the position corresponding to the uncorking operation. This way the corkscrew object of the present invention solves the difficulties of some solutions known up to now, as it presents a solution which consists in a progressive support which allows an extracting action which continues offering the needed resting points which the user uses unconsciously. All this is reached without the user having to introduce the drill into the cork plug for the second time and moreover the lever travelling section is notably increased. Another element to highlight in this new corkscrew is the disposition of the drill at a point nearer to the support, with a more vertical displacement of the cork plug, avoiding the risk of its breakage. It is to highlight that the step from the first leverage position to the second one can be carried out maintaining unaltered the supporting positioning of the top part of the first connection, thus without needing to look for a second resting point of the upper part on the edge of the bottle outlet. This means that the solution which is preconized here substitutes the double resting point of the already known solutions for a sole progressive support, allowing the user to extract the plug in a continuous way and managing the corkscrew with only one hand. On the metal chassis the incorporation of a framework is foreseen, building a grip, carried out in wood, plastic, or any other similar material, determining the mentioned framework a grip with rounded shape, whose surface can remain built up in a non-skidding way, favouring the gripping for the uncorking effort. This corkscrew therefore certainly shows some very advantageous characteristics, acquiring preferable character and own life respect to the corkscrews of the same type developed up to now. Figure 1 is an exploded perspective of the component set including the grip and lever of the preconized corkscrew. Figure 2 is a perspective of the complete corkscrew, with the collapsible elements in retracted position. Figure 3 is a side view of the corkscrew in the same retracted position of the previous figure. Figure 4 is a side view of the corkscrew with all the elements in opened position. Figures 5, 6, 7 and 8 represent respective successive positions of the uncorking sequence with the described corkscrew. The present invention refers to a manual corkscrew and particularly corresponding to the leverage type with support on the edge of the outlet of the bottle (1) to be uncorked. The corkscrew itself is built up of a metal chassis (2), whose realization is foreseen in stainless steel microfusion and embedding, determining at its front part a nail-like conformation (3) dedicated to the opening of crown plugs. In situation above the same front part, this chassis (2) incorporates in articulated disposition a cutting element (4), being an auxiliary means to remove the sealing cover of the bottles before their uncorking. At the lower part the mentioned chassis (2) includes, also in articulated disposition, the corresponding top part (5) for the leverage support on the outlet of the bottle (1) and the drill (6) dedicated to be inserted in the corks (7) to be extracted. In a particular characteristic way, the top part (5) is built up of an extensible set of two pieces (8) and (9) which are telescopically connected, in whose inside a flexible element (10) is included, pushing a boss (11) which can be fitted through one of the corresponding holes of both parts (8) and (9), to determine a blocking device to assure this extended position. With all this, to uncork, the drill (6) is inserted into the corresponding cork (7) to be extracted, the top part (5) is supported by means of the corresponding notch (12) it has to the effect on the edge of the outlet of the respective bottle (1), with the telescopic set (8)-(9) in retracted position, in the way represented on figure 5. Next a cork (7) extraction leverage is carried out, in the way represented on figure 6, till the leverage stops being effective. Maintaining the position of the tool in its extracting leverage position, the lever is subsequently tilted down, maintaining the extreme part (8) of the top piece set (5) resting on the outlet of the bottle (1), with which, according to what is represented on figure 7, the mentioned telescopic set of the top piece (5) is extended, till the boss (11) blocks the holes of both parts (8) and (9). Once this way, the actuating lever tilting can be activated upwards again, in the way represented on figure 8, with which the complete cork (7) extraction is reached, without having to introduce the drill (6) more and without having to change the resting point of the notch (12) of the top part (5) against the bottle outlet at any time. With this what is obtained is a great comfort and efficiency of the uncorking action, without having to perforate the cork (7) completely with the drill (6), avoiding this way that bits of cork (7) fall into the bottle (1); as the possibility of the double progressive uncorking action allows the drill (6) and the top part to remain relatively near, the cork (7) extraction is carried out without practically any lateral effort, avoiding the breakage of the same. The extreme part (8) of the telescopic set of the upper part (5) is foreseen of a lug (13) destined to support the user's finger, allowing to assure in a comfortable and effective way to the support holding of the notch (12) on the outlet of the bottle (1), as well as the retention of the part (8) itself in the extension phase of the part (5) for the second extracting action of the uncorking. Once carried out the uncorking operation, the telescopic set (8) - (9) of the part (5) can be retracted again, pushing the boss (11) towards the inside, to retract the set when the blocking remains free. It has to be indicated that the essential of the invention resides in this telescopic conception (8) - (9) of the part (5), being able the parts (8) - (9) to adopt the most convenient configuration and section in each case without altering in anything the essentiality of the invention. In this sense it has been foreseen that the parts (8) - (9) can be built up of plied plate; or from tubular elements or even by means of moulded pieces. On the metal chassis (2) a structure (14) is incorporated, made of wood, plastic, etc... by means of which a grip is formed with rounded shape which favours the seizing; the mentioned structure (14) can be made in a non-skidding configuration on its surface, for instance a base of small projections or hollows, easing up the effort to be carried out for the uncorking action. The disposition of a nail-like device (3) and the cutting element (4) at the same end of the tool allows on the other hand an advantageous use of the latter holding it always in the same position.

Claims: Improved corkscrew, of the type with manual lever respect to which corresponding supporting parts are situated in an articulated way for the uncorking operation and the drill insertion into the cork to be extracted, being built up the supporting piece of a telescopic set, characterized in that the supporting part for the uncorking is built up of two parts (8) and (9), telescopically connected, in whose inside an element (11) is incorporated which is activated by pushing means (10), being built up the mentioned element (11) to operate as a mobile pin, with the possibility to be fitted and retracted towards the inside, respect to a housing which passes through the walls of both parts (8) and (9) of the telescopic set, to block them to each other in the extended position of the mentioned telescopic set and to release them, allowing the withdrawal of the mentioned telescopic set, for the uncorking operation by means of a double leverage operation but with only one support (12) which is maintained during the double performance, and because the external part (8) of the telescopic set is foreseen of an end piece (13), destined to hold the user's finger during uncorking operation. Improved corkscrew, according to Claim 1, characterized in that the operating lever is built up of a metal chassis (2), carried out in stainless steel microfusion. Improved corkscrew, according to Claims 1 and 2, characterized in that on the metal chassis (2) of the actuating lever a structure (14) is incorporated, made of wood, plastic, or other similar material, determining a gripping device with rounded shape, which is determined with an anti-skidding exterior, to ease up the uncorking effort.

Inventors: OLANETA ARAMBERRI SANTIAGO, OLANETA ARAMBERRI, SANTIAGO
Applicants: OLANETA Y JUARISTI S A B, B.OLANETA Y JUARISTI, S.A.
Application year: 1998
Main classification: B67B7
IPC codes: B67B7