WO2014202101A1

WO2014202101A1 - Fixing mechanism of devices on a multi-purpose tool

Info

Publication number: WO2014202101A1
Application number: PCT/EP2013/001805
Authority: WO
Inventors: Daniele Farfalli; Gino Martinuzzo
Original assignee: Daniele Farfalli; Gino Martinuzzo
Priority date: 2013-06-19
Filing date: 2013-06-19
Publication date: 2014-12-24

Abstract

Fixing mechanism for a multi-purpose tool comprising a plurality of devices that can be manually selectively extracted or replaced by means of the rotation between a withdrawn position and a position of use extracted from the handle, wherein the fixing mechanism includes an essentially cylindrical shaped buckle intended to be inserted into the seat defined by a pair of reciprocally spaced end rings placed in correspondence of at least one end of the handle of the tool, each device being provided with at least one second ring with an internal diameter corresponding to the internal diameter of the end rings into which the buckle is inserted fixed by means of the reciprocal coupling of recesses placed in correspondence of the radially internal surfaces of the end rings and protrusions present on the buckle, the buckle constituting an elastic fixing means with plates exerting a locking force that is essentially oriented radially outwardly with respect to the essentially cylindrical shape of the buckle.

Description

DESCRIPTION

FIXING MECHANISM OF DEVICES ON A MULTI-PURPOSE TOOL

Technical field

The present invention relates to a fixing mechanism of devices on a multi-purpose tool according to the characteristics of the pre-characterizing part of claim 1.

The present invention also relates to a multi-purpose tool according to the characteristics of the pre-characterizing part of claim 1 .

The present invention also relates to a corkscrew according to the characteristics of the pre-characterizing part of claim 20.

Prior art

In the field of the production of multi-purpose tools including various devices that are rotationally applied on a handle and that are manually extractable/insertable in the handle itself by means of the rotation between a withdrawn position within the handle and an extracted position of use of the device, various solutions for the application of such devices are known, which, as an example only, can comprise blades, screwdrivers, corkscrews, saws, bottle openers, scissors, etc.

Usually the devices, such as the blades or the screwdrivers, are provided with a flat fixing end on which a hinging hole is obtained into which a pin is inserted that is fixed between two shells constituting the handle.

The two shells are screwed to each other or fixed by means of a rivet to clamp in the hinging position the various devices that are arranged next to each other along the rotation pin.

Problems of the prior art

The multi-purpose tools of the prior art are of rather complex assembly with reference to the locking in position of the devices that must be such as to allow the rotation of the devices themselves mounted on the tool between the withdrawn position and the extracted position of use.

The prior art solutions are designed in such a way that the fixing usually occurs by means of a pin passing through a hole present on an end of each device, which is the end around which the rotation movement occurs to extract or place the device within the handle of the tool. It is appropriate that the device is locked at least in the two end positions, that is to say, the position in which the device is placed within the handle and the position in which the device is in its position of use.

Often the prior art techniques do not provide any form of locking of the device or they are designed in such a way that it has an end stop position that prevents the device from rotating further by means of an end stop, but the device is still easily rotatable towards the closing direction without any locking constraint.

This may lead to undesired closures of the device during its use and makes its use possible only in the case in which a force is exerted in the direction corresponding to the locking direction.

This condition may also lead, above all in the case of blades like those of penknives, to the risk of injuring the user if the sharp device suddenly closes itself during use because of the application of a force that is not expected, that is to say, in the closing direction of the device towards the handle of the tool during its use.

The fixing mechanisms of the prior art devices on multi-purpose tools must necessarily be applied while manufacturing the tool and do not allow for its replacement or particular arrangements depending on the user's needs, who will often have devices s/he actually needs, devices s/he will never use and devices that are absent with respect to those s/he would actually need.

Aim of the invention

The aim of the present invention is to provide a fixing mechanism of devices on a multipurpose tool that allows to obtain a locking in position of the applicable devices, such as blades, screwdrivers, corkscrews, saws, bottle openers, scissors, etc.

Furthermore, the aim of the present invention is to obtain a simple fixing that allows to configure the tool with devices of different types also depending on the user's actual needs. Concept of the invention

The aim is achieved by the characteristics of the main claim.

The dependent claims represent advantageous solutions.

Advantageous effects of the invention

The solution according to the present invention, by the considerable creative contribution the effect of which constitutes an immediate and important technical progress, presents various advantages.

The multi-purpose tool according to the present invention allows to apply on the handle or handgrip of the device various tools, such as blades, screwdrivers, corkscrews, saws, bottle openers, scissors, etc., which are advantageously provided with different positions of use that are kept by means of appropriate locking means.

Furthermore, the application of the devices on the handle of the tool is simple and fast, as well as reversible, meaning that, once the devices have been applied on the handle of the tool, it is also possible to subsequently remove them to replace them or to configure the tool with different devices with respect to those originally mounted.

Furthermore, the multi-purpose tool according to the present invention also allows to obtain a frictional force that prevents the free rotation of the mounted devices without it being necessary to apply further braking elements like braking springs.

Description of the drawings

In the following a solution is described with reference to the enclosed drawings, which have to be considered as a non-limiting example of the present invention, in which:

Fig. 1 represents an exploded three-dimensional view of the multi-purpose tool made according to the present invention.

Fig. 2 represents an exploded three-dimensional view of the multi-purpose tool of Fig. 1 according to a different point of view.

Fig. 3 represents an exploded three-dimensional view of the multi-purpose tool of Fig. 2 showing the application phase of the devices on the handle or handgrip of the tool. Fig. 4 represents a partially exploded three-dimensional view of the multi-purpose tool of Fig. 3 showing the locking phase of the devices on the handle or handgrip of the tool.

Fig. 5 represents a three-dimensional view showing the coupling of the locking means only of the devices on the handle or handgrip of the tool.

Fig. 6 represents a three-dimensional view of the multi-purpose tool of Fig. 1 in a condition assembled with the respective devices.

Fig. 7 represents a three-dimensional view of the multi-purpose tool of Fig. 6 in a condition assembled with the respective devices in which one of the devices is in an extracted position of use.

Fig. 8 represents a three-dimensional view of the multi-purpose tool of Fig. 6 in a condition assembled with the respective devices in which one of the devices is in an extracted position of use.

Fig. 9 represents a three-dimensional detailed view of the multi-purpose tool of Fig. 6 in a condition assembled with the respective devices showing the coupling of the locking means of the devices on the handle or handgrip of the tool.

Fig. 10 represents a three-dimensional view of the locking means of the devices of the tool according to the present invention.

Fig. 11 represents an exploded three-dimensional view of the multi-purpose tool made according to the present invention comprising some types of applicable devices.

Fig. 12 represents an exploded three-dimensional view of the multi-purpose tool made according to the present invention according to a different configuration of the types of applicable devices.

Fig. 13 represents an exploded three-dimensional view of a different embodiment of the multi-purpose tool in accordance with the present invention.

Fig. 14, Fig. 15, Fig. 16 represent three-dimensional views of different embodiments of the locking means of the devices of the tool according to the present invention.

Description of the invention

With reference to the figures, the present invention relates to (Fig. 1) a fixing mechanism (18) of devices on a multi-purpose tool (5) comprising a handle or handgrip (1 ) and provided with devices (3, 4, 14), such as cutting blades, screwdrivers, corkscrews, saws, bottle openers, scissors, etc., wherein the devices (3, 4, 14) can be manually selectively extracted or replaced, between a withdrawn position within said handle or handgrip (1 ) and a position of use extracted from said handle or handgrip (1) for their use.

In particular (Fig. 1) the fixing mechanism (18) comprises (Fig. 1 , Fig. 2, Fig. 3, Fig. 4, Fig. 10) an internally hollow essentially cylindrical shaped buckle (2) intended to be inserted (Fig. 5) into a pair of reciprocally spaced end rings (8) and placed in correspondence of at least one end of the handle or handgrip (1 ).

The pair of reciprocally spaced end rings (8) defines by means of said spacing a first seat (13) interposed between the end rings (8).

Each device (3, 4, 14) is provided (Fig. 1 , Fig. 2) with at least one second ring (20) with an internal diameter corresponding to the internal diameter of said end rings (8).

In some embodiments a device (4) can also be provided with a pair of second rings (20), for example to obtain a better distribution of the forces that are transmitted to the handle (1) during the use of the device.

The end rings (8) are provided with first recesses (9) in correspondence of the radially internal surfaces of the end rings (8) and said first recesses (9) are intended to house corresponding protrusions (12) present on the buckle (2) at least in correspondence of first plates (10) present in correspondence of the reciprocally opposite bases of the essentially cylindrical shape of the buckle.

In practice, on the base ends of the cylindrical shape of the buckle, the cylindrical shape is not closed on the 360 degrees of the circumferential development of the circular base of the cylindrical shape, but the circumferential development is interrupted and by means of cuts of the cylindrical surface some plates are formed that are elastic thanks to the shape of the cuts and of the material, preferably metal, selected for the making of the buckle (2). The so shaped buckle (2) constitutes an elastic fixing means in which the first plates (10) exert a locking force that is essentially oriented radially outwardly with respect to said essentially cylindrical shape.

In practice, the buckle (2) is an internally hollow essentially cylindrical shaped buckle and the first plates (10) are obtained by means of at least one longitudinal cut (21) with respect to the height of the cylindrical shape, the longitudinal cut (21) interrupting the circumferential development of the circular bases of the cylindrical shape, and the first plates (10) are further obtained by means of circumferential cuts (22) that extend circumferentially from the longitudinal cut (21).

The first plates (10), thanks to the locking force exerted, lock the buckle (2) within the end rings (8) by the reciprocal coupling between the protrusions (12) and the first recesses (9).

Each protrusion supported at the end of the respective first plate (10) exerts a radially outward force with respect to the cylindrical shape that locks the buckle in position within the end rings (8) of the handle (5).

The second ring (20) of the devices (3, 4, 14) is fixed within the first seat (13) by means of the buckle (2) by inserting (Fig. 4) the buckle (2) through the second ring (20) after the second ring has been inserted into the corresponding first seat (13) in a condition of axial alignment with the end rings (8).

In practice, in order to fix the devices (3, 4 14) on the handle (5), first of all all the devices (3, 4, 14) are arranged (Fig. 2) next to each other and in a condition of reciprocal alignment of the respective second rings (20).

Then the so formed locking of the devices is applied (Fig. 3) on the handle (5) inserting the series of second rings (20) into the first seat (13), until obtaining a condition of reciprocal alignment between all the second rings (20) and the end rings (8).

Finally, the buckle (2) is used to fix (Fig. 4, Fig. 6, Fig. 9) all the devices (3, 4, 14) between the end rings (8) preventing them from slipping off the first seat (13) and allowing for the rotation of the devices (3, 4, 14) by the sliding (Fig. 7, Fig. 8) of the respective second ring (20) on the radially external surface of the buckle (2).

The buckle (2) has a width that is greater than the distance between the pair of reciprocally spaced end rings (8), and the buckle (2) has a width that is smaller than the width given by the sum of the distance between the pair of end rings (8) and the thicknesses of the end rings (8).

In practice, the buckle is of such a width as to remain inserted within the end rings occupying at least partially the inside of both end rings (8) for the fixing of the buckle. The buckle may also be of a width only slightly smaller, at the most equal, with respect to the width given by the sum of the distance between the pair of end rings (8) and the thicknesses of the end rings (8).

In other embodiments in addition to the end rings (8) there may also be further intermediate rings (not shown) shaped like the end rings (8) and placed in an interposed position between the end rings (8) within the first seat (13) in a condition of alignment with the end rings (8) to obtain a better distribution of the forces on the handle during the use of the device.

The buckle (2) further comprises (Fig. 4, Fig. 9, Fig. 10) second plates (11) interposed between the first plates (10).

The second plates (11) are provided with protrusions (12) coupling with corresponding (Fig. 1 , Fig. 2, Fig. 4, Fig. 13) second recesses (19) present on the radially internal surfaces of the second rings (20).

The second plates (11), too, are obtained on the hollow cylindrical shape of the buckle (2) by the interruption of the circumferential surface of the buckle (2).

The buckle (2), therefore, is an internally hollow essentially cylindrical shaped buckle and the second plates (11) are obtained by means of at least one of the longitudinal cuts (21) with respect to the height of the cylindrical shape, the longitudinal cut (21) interrupting the circumferential development of the cylindrical shape, and the second plates (11) are further obtained by means of a pair of circumferential cuts (22) that extend circumferentially from the longitudinal cut (21). The first plates (10) may be of a different length (Fig. 14, 15) in correspondence of an end with respect to the length of the first plates (10) present at the opposite end of the buckle (2) to obtain different elastic locking forces.

The number of the second plates (11) may depend on the number of the devices to be fixed and the width of the single plates can be different according to the effort that is expected to be applied on each device (3, 4, 14).

There may also be solutions (Fig. 16) in which at least one of the devices (3, 4, 14) is provided with pairs of second recesses (19) engaging simultaneously with pairs of second plates (11), which in the embodiment shown are pairs of second plates (11 ) opposite to the circumferential development of the buckle, that is to say, opposite pairs of plates with respect to the longitudinal cut (21) that divides the cylindrical buckle (2). The coupling with the pairs of plates can occur in at least one of the positions of the device (3, 4, 14) selected from the extracted position and withdrawn position and/or an intermediate position between them.

The second rings (20) preferably comprise (Fig. 1 , Fig. 2) at least one pair of second recesses (19).

A recess of the pair of second recesses (19) is intended to be coupled with the protrusions (12) of the second plates (11) in correspondence of a first position along the sliding path of the second ring (20) on the radially external surface of the buckle (2), which is a withdrawn position of the corresponding device (3, 4, 14) within the handle or handgrip (1).

The other recess of the pair of second recesses (19) is intended to be coupled with the protrusions (12) of the second plates ( 1) in correspondence of a second position along the sliding path of the second ring (20) on the radially external surface of the buckle (2), which is an extracted position of the corresponding device (3, 4, 14) from said handle or handgrip (1), that is to say, a position of use of the device (3, 4, 14).

In practice, a recess contributes to keeping the device locked in the withdrawn position preventing the device from accidentally coming out of the handle, while the other recess contributes to keeping the device in the extracted position preventing or reducing the risk of undesirable closures of the device during use.

Each of the second plates (11) advantageously exerts a force on the corresponding second ring (20) both in the condition of coupling between the protrusions (12) and the second recesses (19) and in the intermediate positions with respect to the positions defined by the condition of coupling between the protrusions (12) and the second recesses (19).

In fact, the second plates (1 1 ) exert a force that is essentially oriented radially outwardly with respect to the essentially cylindrical shape of the buckle (2) also when they are not in the condition of engagement between the protrusions (12) and the second recesses (19).

In this way a frictional force is advantageously obtained, which prevents the free rotation of the devices (3, 4, 14) without it being necessary to apply further braking elements such as braking springs.

This aspect is relevant because it prevents, in case of wrong or partial locking by means of the coupling between the protrusions (12) and the second recesses (19), the devices (3, 4, 14) from coming out of their insertion seats if they are placed in the handle, or from moving from the condition of use if they are in the extracted condition. In practice, the second plates (11) exert a frictional force on the corresponding second rings (20) preventing their free rotation and exert a locking force when they are in the condition of coupling between the protrusions (12) and the second recesses (19).

Preferably, the fixing mechanism (18) comprises at least two devices (3, 4, 14) intended to be manually selectively extracted or replaced by means of the rotation between a withdrawn position within the handle or handgrip (1) and a position of use extracted from said handle or handgrip (1).

In this configuration at least one first device (3) can be provided with a pair of said second reciprocally spaced rings (20) (Fig. 1) in which said pair of second reciprocally spaced rings (20) defines a second seat (24) interposed between the end rings (8) intended for the insertion of at least one second ring (20) of at least one second device (4) In practice one of the devices can be provided with a pair of rings in place of a single locking ring in which the pair of rings acts as a seat for housing another device.

This configuration can be useful for instance in the case of a pair of devices that are used jointly, in order to better distribute the efforts applied on the device with the ring interposed between the pair of rings of the other device.

Furthermore, again with reference to a configuration with at least two devices (3, 4, 14), the withdrawn position of a first device (3) can be on the handle or handgrip (1) in an opposite position (Fig. 6) with respect to the withdrawn position of a second device (4), the rotation of said first device (3) between said withdrawn position and said extracted position (Fig. 7) occurring in a first extraction direction selected from clockwise direction and anti-clockwise direction and the rotation of said second device (4) between said withdrawn position and said extracted position (Fig. 8) occurring in a second extraction direction opposite to said first extraction direction.

Preferably, a first device (3) comprises (Fig. 1 , Fig. 3, Fig. 8) a stop surface (6) and a second device (4) comprises a counter stop surface (7).

In the extracted position of the first device (3) with the second device (4) in a withdrawn position, the stop surface (6) is coupled with the counter stop surface (7) preventing the first device (3) from rotating further.

In the extracted position (Fig. 8) of the second device (4) with the first device (3) in a withdrawn position, the counter stop surface (7) is coupled with the stop surface (6) preventing the second device (4) from rotating further.

The present invention also relates to the application of the fixing mechanism (18) on a multi-purpose tool (5) that comprises the handle or handgrip (1) and is provided with the devices (3, 4, 14) described, which can be manually selectively extracted or replaced by means of the rotation between a withdrawn position within the handle or handgrip (1) and a position of use extracted from said handle or handgrip (1), wherein the fixing of the devices (3, 4, 14) occurs at least in correspondence of at least one end of the handle or handgrip (1) by means of said fixing mechanism (18) and according to present invention.

The fixing of the devices (3, 4, 14) by means of said fixing mechanism (18) may also occur (Fig. 13) in correspondence of both ends of the handle or handgrip (1).

Preferably, the handle or handgrip (1) comprises at least one housing (17) for inserting one or more devices (3, 4, 14), so that the devices (3, 4, 14) are inserted into this housing (17) in correspondence of their withdrawn position.

This solution offers the advantage of keeping the cutting blades in a safe position in the non-use condition.

In an embodiment (Fig. 12) the handle or handgrip (1) includes an attachment (16) that is placed on the handle or handgrip (1) in a spaced position with respect to the at least one end on which the devices (3, 4, 14) are fixed, said attachment (16) being intended for fixing an extraction screw (15) of corks from a bottle.

Preferably, in this case, the devices (3, 4, 14) include a lever supporting the propping action on the neck of the bottle for the extraction of said cork.

This solution is very advantageous with respect to some prior art solutions because it allows for the spaced positioning of the extraction screw (15) and propping lever to facilitate the action of extraction of the cork.

In some prior art solutions of multi-purpose tools, on the other hand, the screw (15) is fixed in correspondence of the end of the handle (1) and does not allow for the joint operation with a propping lever making the extraction of the cork difficult.

Therefore, the present invention also relates to a manual lever corkscrew with an extraction screw (15) of corks from a bottle and lever (23) supporting the propping action on the neck of the bottle, wherein said lever (23) supporting the propping action on the neck of the bottle is articulated to the handle (1) by means of a fixing mechanism (18) according to the present invention.

In an embodiment (Fig. 12) one or more devices can be shaped with a locking bar (25) that acts as a stop surface (6) for one or more of the other devices. The tool may comprise at least one device (3, 4, 14) selected from the group consisting of cutting blade, screwdriver, magnifying lens, scissors, tin opener, crown-cork opener, wire stripper, hook, corkscrew, toothpick, pair of pliers, key-ring, saw.

For example (Fig. 11 ) the first device (3) may be a crown-cork opener, the second device (4) may be a pair of pliers, the third device (14) may be a blade.

Advantageously, the fixing mechanism described also allows to remove the devices (3,

4. 14) by simply removing the buckle, allowing, for example, to configure the same tool (5) with different devices according to the user's needs.

An extraction pin or device (not shown) may also be provided for the extraction of the buckle (2) in order to allow the user or the retailer to replace the devices (3, 4, 14) to obtain the maximum configurability of the tool (5).

The description of the present invention has been made with reference to the figures enclosed in a preferred embodiment, but it is evident that many possible changes, modifications and variants will be immediately clear to those skilled in the art in the light of the previous description.

Therefore, it must be pointed out that the invention is not limited to the previous description, but contains all the changes, modifications and variants in accordance with the enclosed claims.

Nomenclature used

With reference to the identification numbers in the enclosed figures, the following nomenclature has been used:

1. Handle or handgrip

2. Buckle

3. First device

4. Second device

5. Multi-purpose tool

6. Stop surface

7. Counter stop surface 8. First ring or end ring

9. First recess

10. First plate

11. Second plate

12. Protrusion

13. Seat

14. Third device

15. Screw

16. Attachment

17. Housing

18. Fixing mechanism

19. Second recess

20. Second ring

21. Longitudinal cut

22. Circumferential cut

23. Propping lever

24. Second seat

25. Locking bar

Claims

1. Fixing mechanism (18) for a multi-purpose tool (5) comprising a handle or handgrip

(1) and provided with at least one device (3, 4, 14) which can be manually selectively extracted or retracted by means of the rotation between a withdrawn position within said handle or handgrip (1 ) and a position of use extracted from said handle or handgrip (1), characterised in that it includes an essentially cylindrical shaped buckle

(2) intended to be inserted into a pair of reciprocally spaced end rings (8) which are located in correspondence of at least one end of said handle or handgrip (1), said pair of reciprocally spaced end rings (8) defining a first seat (13) interposed between said end rings (8), each of said devices (3, 4, 14) being provided with at least one second ring (20) having an internal diameter corresponding to the internal diameter of said end rings (8), said end rings (8) being provided with first recesses (9) in correspondence of the radially internal surfaces of said end rings (8), said first recesses (9) being intended to house corresponding protrusions (12) which are present on said buckle (2) at least in correspondence of first plates (10) which are present in correspondence of the reciprocally opposite bases of said essentially cylindrical shape, said buckle (2) constituting an elastic fixing means in which said first plates (10) apply a locking force which is essentially oriented radially outwardly with respect to said essentially cylindrical shape and locking said buckle (2) within said end rings (8) by means of the reciprocal coupling between said protrusions (12) and said first recesses (9), said second ring (20) of said devices (3, 4, 14) being fixed within said first seat (13) by means of said buckle (2) by the insertion of said buckle (2) through said second ring (20), said buckle (2) fixing said devices (3, 4, 14) between said end rings (8) preventing them from slipping off said first seat (13) and allowing the rotation of said devices (3, 4, 14) by means of the sliding of said second ring (20) on the radially external surface of said buckle (2).

2. Fixing mechanism (18) according to the previous claim, characterised in that said buckle (2) has a width that is greater than the distance between said pair of reciprocally spaced end rings (8), said buckle (2) having a width that is smaller than the width given by the sum of the distance between said pair of end rings (8) and the thicknesses of said end rings (8).

3. Fixing mechanism (18) according to any of the previous claims, characterised in that said buckle (2) is an internally hollow essentially cylindrical shaped buckle, said first plates (10) being obtained by means of at least one longitudinal cut (21) with respect to the height of said cylindrical shape, said longitudinal cut (21 ) interrupting the circumferential development of the circular bases of the cylindrical shape, and said first plates (10) being further obtained by means of circumferential cuts (22) which extend in a circumferential direction from said longitudinal cut (21).

4. Fixing mechanism (18) according to any of the previous claims, characterised in that said buckle (2) further includes second plates (11) interposed between said first plates (10), said second plates ( 1 ) being provided with protrusions (12) coupling with corresponding second recesses (19) which are present on the radially internal surfaces of said second rings (20), said second plates (11) applying a locking and/or frictional force which is essentially oriented radially outwardly with respect to said essentially cylindrical shape and locking said second ring (20) in correspondence of at least one position along the sliding path of said second ring (20) on the radially external surface of said buckle (2).

5. Fixing mechanism (18) according to the previous claim, characterised in that said buckle (2) is an internally hollow essentially cylindrical shaped buckle, said second plates (11) being obtained by means of at least one of said longitudinal cuts (21) with respect to the height of said cylindrical shape, said longitudinal cuts (21) interrupting the circumferential development of the cylindrical shape, and said second plates (11) being further obtained by means of a pair of said circumferential cuts (22) which extend circumferentially from said longitudinal cut (21).

6. Fixing mechanism (18) according to any of the previous claims 4 to 5, characterised in that said second rings (20) include at least one pair of said second recesses (19), one recess of the pair of said second recesses (19) being intended to be coupled with said protrusions (12) of said second plates (11) in correspondence of a first position along the sliding path of said second ring (20) on the radially external surface of said buckle (2) which is a withdrawn position of the corresponding device (3, 4, 14) within said handle or handgrip (1), the other recess of the pair of said second recesses (19) being intended to be coupled with said protrusions (12) of said second plates (11) in correspondence of a second position along the sliding path of said second ring (20) on the radially external surface of said buckle (2) which is an extracted position of the corresponding device (3, 4, 14) from said handle or handgrip (1), which is a position of use of said device (3, 4, 14).

7. Fixing mechanism (18) according to any of the previous claims, characterised in that it includes at least two of said devices (3, 4, 14) intended to be manually selectively extracted or retracted by means of the rotation between a withdrawn position within said handle or handgrip (1) and a position of use extracted from said handle or handgrip (1), in which at least one first device (3) of said devices (3, 4, 14) is provided with a pair of said second reciprocally spaced rings (20), said pair of second reciprocally spaced rings (20) defining a second seat (24) interposed between said end rings (8) which is intended for the insertion of at least one of said second rings (20) of at least one second device (4) of said devices (3, 4, 14).

8. Fixing mechanism (18) according to any of the previous claims, characterised in that it includes at least two of said devices (3, 4, 14) intended to be manually selectively extracted or retracted by means of the rotation between a withdrawn position within said handle or handgrip (1 ) and a position of use extracted from said handle or handgrip (1), in which the withdrawn position of a first device (3) is located on said handle or handgrip (1) in an opposite position with respect to the withdrawn position of a second device (4), the rotation of said first device (3) between said withdrawn position and said extracted position occurring in a first extraction direction selected from clockwise direction and anti-clockwise direction and the rotation of said second device (4) between said withdrawn position and said extracted position occurring in a second extraction direction which is opposite to said first extraction direction.

9. Fixing mechanism (18) according to the previous claim, characterised in that said first device (3) includes a stop surface (6) and said second device (4) includes a counter stop surface (7), in the extracted position of said first device (3) with said second device (4) in the withdrawn position said stop surface (6) coupling with said counter stop surface (7) preventing said first device (3) from rotating further, in the extracted position of said second device (4) with said first device (3) in the withdrawn position said counter stop surface (7) coupling with said stop surface (6) preventing said second device (4) from rotating further.

10. Fixing mechanism (18) according to the previous claim, characterised in that said first device includes a locking bar (25) acting as a stop surface for one or more of the other devices (4, 14).

11. Fixing mechanism (18) according to any of the previous claims, characterised in that it includes intermediate rings which are shaped like said end rings (8) and placed in an intermediate position between said end rings (8) within said first seat (13) in a condition of alignment with said end rings (8).

12. Fixing mechanism (18) according to any of the previous claims 4 to 1 1 , characterised in that said second plates (11) have a width different from each other depending on the effort which is expected to be applied on the corresponding device (3, 4, 14) during its use.

13. Fixing mechanism (18) according to any of the previous claims 4 to 12, characterised in that at least one of said devices (3, 4, 14) is provided with pairs of said second recesses (19) simultaneously engaging with pairs of second plates (11) in at least one of said positions of said device (3, 4, 14) selected from said extracted position and said withdrawn position and/or an intermediate position between them.

14. Multi-purpose tool (5) comprising a fixing mechanism (18) according to any of the previous claims 1 to 13, and provided with said devices (3, 4, 14) which can be manually selectively extracted or retracted by means of the rotation between a withdrawn position within said handle or handgrip (1) and a position of use extracted from said handle or handgrip (1) where said handle or handgrip (1) is provided with said fixing mechanism (18) of said devices (3, 4, 14) in correspondence of at least one end of said handle or handgrip (1).

15. Multi-purpose tool (5) according to the previous claim, characterised in that said handle or handgrip (1) is provided with said fixing mechanism (18) of said devices (3, 4, 14) in correspondence of both ends of said handle or handgrip (1).

16. Multi-purpose tool (5) according to any of the previous claims 14 to 5, characterised in that said handle or handgrip (1) comprises at least one insertion housing (17) of one or more of said devices (3, 4, 14), said devices (3, 4, 14) entering said housing (17) in correspondence of said withdrawn position.

17. Multi-purpose tool (5) according to any of the previous claims 14 to 16, characterised in that said handle or handgrip (1) includes an attachment (16) which is placed on said handle or handgrip (1) in a spaced position with respect to said at least one end on which said devices (3, 4, 14) are fixed, said attachment (16) being intended for fixing an extraction screw (15) of corks from a bottle.

18. Multi-purpose tool (5) according to the previous claim, characterised in that said devices (3, 4, 14) include a lever intended to support the propping action on the neck of the bottle for the extraction of said cork.

19. Multi-purpose tool (5) according to any of the previous claims 14 to 18, characterised in that it includes at least one device (3, 4, 14) selected from the group consisting of cutting blade, screwdriver, magnifying lens, scissors, tin opener, crown- cork opener, wire stripper, hook, corkscrew, toothpick, pair of pliers, key-ring, saw.

20. Multi-purpose tool (5) according to any of the previous claims 14 to 18, characterised in that it is provided with an extraction pin or device for the extraction of said buckle (2), the extraction of said buckle (2) being intended for the replacement of one or more of said devices (3, 4, 14).

21. Manual lever corkscrew with an extraction screw (15) of corks from a bottle and with a lever (23) supporting the propping action on the neck of the bottle, characterised in that said propping lever (23) is articulated to said handle (1) by a fixing mechanism (18) according to any of the previous claims 1 to 13.