WO1999054097A1

WO1999054097A1 - Portable work tool, especially for cutting, peeling, stamping, piercing, bending or drilling small objects

Info

Publication number: WO1999054097A1
Application number: PCT/IB1999/000680
Authority: WO
Inventors: Erwin Oberhuber
Original assignee: Cut-Tec S.N.C. Di Oberhuber Erwin & Co.
Priority date: 1998-04-17
Filing date: 1999-04-15
Publication date: 1999-10-28
Also published as: AU3047999A; ITBZ980018A1; IT1303487B1

Abstract

The invention relates to a portable work tool for cutting, peeling, stamping, piercing, bending or drilling small objects, comprising a manual actuating device (2a; 2b; 2c; 2d; 2e; 2f) for executing the processing of the object and a support structure (3) connected to the actuating device (2a; 2b; 2c; 2d; 2e; 2f). The support structure (3) can be placed directly in the hand (4) of a user in such a way that the actuating device (2a; 2b; 2c; 2d; 2e; 2f) can be directly activated by the hand (4) on which it is located and the tool remains positioned in said hand (4) when the actuating device (2a; 2b; 2c; 2d; 2e; 2f) is not activated and is not in contact with the hand (4).

Description

"Portable work tool especially for cutting, forming, punching, punching, bending or drilling small objects"

DESCRIPTION

The subject of the present invention is a portable working tool, in particular for cutting, forming, punching, punching, bending or drilling small objects during any manual activity, such as that of bricklayers, electricians, plumbers, joiners, carpenters and craftsmen in general, small cutting, formwork, punching, punching, bending or drilling operations are often necessary to be performed on small objects such as foils, wires, tapes, wire meshes, fins and the like

This type of activity is characterized by the repeated use of tools, often always the same. If, for example, the activity of an electrician is considered, the electrician with whom he works must often be cut and shaped. He will then take the scissors to cut a wire section , will cut the scissors after cutting to have their hands free to start working with the cut wire again, then he will take the scissors again to cut another wire section, will put the scissors down again after the new cutting in order to have his hands free again for the work etc. In addition, he will form the ends of the cut wire sections

However, this repeated activity of grasping and repositioning one and the same tool, which is easily necessary to have one's hands free between one and the other use of the tool, is uncomfortable in any case. It also causes loss of time when, and this is not uncommon , the user must search for the tool that was taken unnoticed by an employee or was forgotten in a place where the user had previously worked or in a place that he can no longer remember. The essential object of the present invention is in eliminating the shortcomings mentioned above by providing a portable work tool,

1 in particular for cutting, forming, punching, punching, bending or drilling small objects, which is more convenient and easy to use and allows to avoid repeated work interruptions due to its finding. These and other tasks are achieved by a portable working tool according to the invention solved that it comprises a manually operable device for performing the machining on the object and a supporting structure connected to the device, the supporting structure being attachable to a hand of the user such that the device can be operated directly by the hand on which it is attached and that the tool remains in place on the hand even when the device is not operated and is not in contact with the hand

The basic idea of the present invention is therefore to connect the tool and the hand without having to act to carry out the connection. The hand has a completely passive role with respect to the connection, which means that it is not claimed to hold the tool, and can work freely In this sense, in order to have your hands free for work, it is no longer necessary to put the tool between one use and the other. The tool remains on the hand of the user when it is not in use without, however, impairing their freedom of action and at the same time is ready and available for immediate use. According to claims 2, the supporting structure expediently comprises a pair of rings into which the index finger and the middle finger of the hand are simultaneously inserted when the tool is attached to it in this way, a secure and stable connection between d A tool and the hand reached When the rings 5 are open, the adaptability of the rings to the fingers is facilitated by several users. According to claim 4, the device expediently has a manually actuable actuating lever on which the hand acts by pressure application around the working elements to bring the manually operable device into the working position This type of actuation has the advantage that it is very simple, but above all very convenient, also in view of the fact that it is sufficient for this purpose to exert only one pressure printed on the thumb, given that this action is congenital to this finger Claim 7 relates to an expedient, first embodiment of the manually actuable device, which is particularly suitable for cutting and formwork work. Claim 9 relates to an expedient, second embodiment of the manually actuable device, which is particularly suitable for punching or shearing work is suitable

Claim 10 relates to an expedient, third embodiment of the manually operable device, which is also particularly suitable for punching or shearing work. Claim 11 relates to an expedient, fourth embodiment of the manually actuable device, which is particularly suitable for punching work. Claim 12 relates to an expedient fifth embodiment of the manually operable device, which is particularly suitable for bending and punching work. Claim 13 relates to an expedient, sixth embodiment of the manually actuable device, which is particularly suitable for drilling work. To have a simple structure, it is provided according to claim 5 that the action of the hand a counteracts elastic return force, which tends to return the actuating lever and with it the working elements to their inactive working position. This causes the manually operable device to automatically return to its starting position, ie the ineffective working position is returned and is therefore always ready for use. In this case, the elastic return force acting on the actuating lever can be exerted by a spring, such as a leaf spring, a leg spring or a coil spring. Alternatively, in order to have an even simpler structure, 15, the elastic return force acting on the actuating lever can be generated by deformation of the material when the device is actuated. Finally, it can be provided that, according to claim 16, the working tool comprises a closing element which, in its closed position, holds the device in the effective working position. The presence The closing element is particularly suitable if, due to the type of work that has to be carried out, it is better for safety reasons that the working elements do not change in their starting position during the time in which the working tool is not used position, ie not effective working position

For this purpose, it is alternatively also possible according to claim 17 an elastic

To provide return force that tends to the operating lever and with it the

To keep working elements in their effective working position Further features and advantages of the present invention will become apparent from the detailed description of embodiments below, which are shown, for example, but not in a limiting manner, in the accompanying drawings

Show it

Figure 1 in side view of a first embodiment of the tool according to the invention, comprising a manually operable device for cutting and for peeling, the

Working position is shown hatched, Figures 2 and 3 each have a first and a second end view of the tool from Figure

1 with a support structure with closed rings, the manually operable device being shown in its inactive position in the first end view and in its active working position in the second end view, FIGS. 4 and 5 each show a first and a second end view of the tool

Figure 1, which correspond to the views of Figures 2 and 3, but refer to one

Cover support structure with open rings,

Figure 6 is a side view of a second embodiment of the tool according to the invention, comprising a manually operated device for cutting or

Stamping,

Figure 7 is a side view of the manually operable device of Figure 6 in an effective working position, Figures 8 and 9 each have a first and a second end view of the tool of Figure 6 with a support structure with closed rings, the manually actuated device in the first end view in their ineffective working position and in the second

Front view is shown in its effective working position, Figures 10 and 11 each a first and a second front view of the tool

FIG. 6, which correspond to the views from FIGS. 8 and 9, but relate to the support structure with open rings, FIGS. 10a and 11a, 10b and 11b, 10c and 11c each have a first and a second end view which correspond to the views from FIGS. 10 and 11, but nevertheless refer to an aesthetically different looking tool with the technically identical from FIG a leaf spring, with a leg spring and with a helical spring, Figures lOd and 1 l each have a first and a second end view, which correspond to the views of Figures 10b and 11b, but relate to the case that the direction of action of the leg spring against the Direction of action of the leg spring shown in Figures 10b and 11b, Figure 12 is a side view of a third embodiment of the tool according to the invention, comprising a manually operated device for punching, Figure 13 is a top view of the manually operated device of Figure 12 in an ineffective Position, Figures 14 and 15 each in side view and plan view 12 shows the manually operable device from FIG. 12 in an effective working position, FIGS. 16 and 17 each show an end view of the tool from FIG. 12 with a support structure with closed or open rings,

Figure 18 is a side view of a fourth embodiment of the tool according to the invention, comprising a manually operated device for punching, Figure 19 is a top view of the manually operated device of Figure 18 in the inactive working position, Figures 20 and 21 each in side view and top view of the manual Actuatable device from FIG. 18 in the effective working position, FIGS. 22 and 23 each show an end view of the tool from FIG. 18 with a support structure with closed or open rings,

Figure 24 is a side view of a fifth embodiment of the tool according to the invention, comprising a manually operated device for bending or punching, Figure 25 is a top view of the manually operated device of Figure 24 in the inactive position, Figures 26 and 27 each in side view and Top view the manually operated

5 24 in the effective working position, FIGS. 28 and 29 each show an end view of the tool from FIG. 24 with a support structure with closed or open rings,

30 shows a side view of a sixth embodiment of the tool according to the invention, comprising a manually operable device for drilling, FIGS. 31 and 32 show an end view of the tool from FIG. 30 with a support structure with closed rings and in an ineffective or effective working position, FIGS. 33 and FIG. 34 is an end view of the tool from FIG. 30 with a support structure with open rings and in an ineffective or effective working position. With reference to the figures, a portable working tool is shown in particular for cutting, forming, punching, punching, bending or drilling small objects

It comprises a manually operable device 2a, 2b, 2c, 2d, 2e, 2f, for performing the work on the object and a support structure 3, the latter being connected to the device 2a, 2b, 2c, 2d, 2e, 2f, and can a hand 4 of the user can be attached such that the device 2a, 2b, 2c, 2d, 2e, 2f can be operated by the hand on which it is attached

The tool remains in position on the hand 4 independently, even if the device 2a, 2b, 2c, 2d, 2e, 2f, is not actuated and is not in contact with the hand 4. To do this, the support structure 3 has a pair of Rings 5, into which the index finger and the middle finger are simultaneously inserted when the tool is attached to the hand 4. As shown in the figures, the rings 5 can also be open. The manually actuable device 2a, 2b, 2c, 2d, 2e, 2f, has a manually actuable actuating lever 6, on which the hand 4 acts under pressure in order to press the working elements 7a, 7b, 7c, 7d, 7e, 7f, of the device 2a, 2b, 2c, 2d, 2e, 2f, in Bringing the working position The action of the hand is counteracted by a spring force, which tends to bring the operating lever 6 and with it the working elements 7a, 7b, 7c, 7d, 7e, 7f, into their non-effective position. The effective on the operating lever 6 elastic return force we d in the case of the device 2c, 2d, 2e exerted by a spring 8 This spring 8 can, like the figures 10a to 11c show a leaf spring, a leg spring or a helical spring. In order to keep the device together, a closing element 99 can also be provided, which can also be seen in these figures

The elastic return force exerted on the actuating lever 6 is generated by deformation of the material when the device 2a, 2b, 2f is actuated

FIGS. 10d, 11d show the situation that occurs when the direction of action of the leg spring 8 is opposite to that of the leg spring shown in FIGS. 10b, 11b. In this case, there is an elastic return force that tends to actuate the lever 6 and to hold the working elements 7b in their effective working position with him, ie in their closed position. In this case, the closing element 99 is also omitted

1 to 5 show a first embodiment 2a of the manually actuable device. It is a cutting device whose working elements 7a are blades. The two positions are drawn in the figures, which are taken up by the actuating lever 6 and the blades 7a In the inactive working position, the actuating lever 6 is raised and the blades 7a are in their ineffective open position. In the working position, the actuating lever 6 has been pressed into its lowered, hatched position and the blades 7a are closed to one another to cut the object, which was arranged between them, the blades 7a expediently have seats 77a of different dimensions, as can be seen from the figures, in which, for example, wires to be formed of different diameters can be held, in this way compared to the actual cutting function of this type of cutting The supporting structure 3 can have closed or open rings 5. This first embodiment is particularly suitable, for example, to accompany the activity of an electrical installer who often has to cut and form electrical wires. FIGS. 6 to 11 show a second embodiment 2b of the manually operable device shown. It is a pair of scissors whose working elements 7b are knives

7 In the figures, two positions are drawn, which are taken up by the actuating lever 6 and the knives 7b. In the inactive working position, the actuating lever 6 is raised and the knives 7b are in their ineffective, open position. In the working position, the actuating lever 6 is in its lowered position, shown in FIG. 7, and the knives 7b were closed to one another in order to punch or shear the object arranged between them. The support structure 3 has closed or open rings 5. This second embodiment is particularly suitable for the work of any craftsman or to accompany a worker who often has to punch or shear objects, in particular thin and flat objects. The figures from 10a to 11c relate to a technically identical working tool as that from FIG. 6, which only looks different from an aesthetic point of view. In these figures, the spring 8 and the closing element t 99 can also be seen. The third embodiment of the manually actuable device, shown in FIGS. 12 to 17, relates to a punching device, namely a punching device 2c, the working element 7c of which is a cutting edge

In the figures, two positions are drawn, which are taken up by the operating lever 6 and the cutting edge 7c. In the inactive working position, the operating lever 6 is raised and the cutting edge 7c is in its retracted, inactive position. In the working position, the operating lever 6 was in its lowered position, shown in FIG. 14, and the cutting edge 7c was brought against the stop 77c in order to punch or shear the object which was arranged in front of the stop 77c. The support structure 3 has closed or open rings 5a, this embodiment also being particularly suitable is, for example, to accompany the work of any craftsman or worker who often has to shear objects, especially wires

FIGS. 18 to 23 show a fourth embodiment 2d of the manually operable device. It is a hole punch, the working element 7d of which is a stamp. In the figures, the two positions are designated which are taken up by the actuating lever 6 and the stamp 7d ineffective working position is the The operating lever 6 is raised and the stamp 7d is in its non-retracted, retracted position. In the working position, the operating lever 6 is printed in its lowered position, shown in FIG. 20, and the stamp 7d is brought against the stop 77d by which the front Punching the stop 77d arranged object The support structure 3 has closed or also open rings 5. This fourth embodiment is particularly suitable, for example, to accompany the activity of a user who has to impress objects. This is done, for example, for ticket controllers or also for official activities where necessary is to give one's own stamp or seal on documents. FIGS. 24 to 29 show a fifth embodiment 2e of the manually actuable device. It is a bending punching device, the working element 7e of which is a cutting edge

In the figures, the two positions are drawn, which are taken up by the operating lever 6 and the cutting edge 7e. In the inactive position, the operating lever 6 is raised and the cutting edge 7e is in the retracted, inactive position. In the working position, the operating lever has become 6 printed in its lowered position shown in FIG. 26, and the cutting edge 7e was brought against the stop 77e in order to shear off the object brought in front of the stop 77e. The support structure 3 has closed or open rings 5. This embodiment differs from the third, already explained embodiment because of the different design of the stop 77e. In the present embodiment, the stop 77e has a step below with an angled recess 777e. In this way, should the wire be placed on the stop 77e in front of the recess 777e, then it was bend the cutting edge 7e while should the wire rest on the step, then the cutting edge 7e would shear it off. This fifth embodiment is particularly suitable, for example, to accompany the work activity of a user who has to process wires

Finally, FIGS. 30 to 32 show a sixth embodiment of the manually actuable device. It is a drilling device 2f, the working element 7f of which is a tip In the figures, the two positions are drawn, which are taken up by the actuating lever 6 and the tip 7f. In the inactive position, the actuating lever 6 is raised and the tip 7f is located away from the lamella 77f. The lamella 77f is drilled in the area of the tip 7f In the working position, the actuating lever 6 was printed in the direction of the arrow from FIG. 30, the lamella 77f being lowered and the tip 7f being inserted into the bore thereof in order to drill the object placed above the tip 7f. The supporting structure 3 has closed or open rings 5 on. This sixth embodiment is particularly suitable, for example, to accompany the work of a user who often has to punch thin, flat objects, such as ticket inspectors, who validate tickets by punching them

The present invention thus achieves the stated goals

All the details can be replaced by equivalent technical elements and the shapes, dimensions and materials used can be any, depending on the needs

10

Claims

P A T E N T A N S P R Ü C H E

1 Portable work tool, in particular for cutting, forming, punching, punching, bending or drilling small objects, characterized in that there is a manual actuating device (2a, 2b, 2c, 2d, 2e, 2f) for performing the processing on the object and one with the actuating device (2a, 2b, 2c, 2d, 2e, 2f) connected support structure (3), wherein the support structure (3) can be attached to a hand (4) of the user such that the actuating device (2a, 2b, 2c, 2d 2e, 2f) can be actuated directly by the hand (4) on which it is attached and the tool on the hand (4) remains in position even when the actuating device (2a, 2b, 2c, 2d , 2e, 2f) is not actuated and is not in contact with the hand (4)

2 work tool according to claim 1, characterized in that the support structure (3) comprises a pair of rings (5) in which the index finger and the middle finger of the hand (4) are inserted at the same time when attaching the work tool on the same

3 work tool according to claim 2, characterized in that the rings (5) are open

4 Working tool according to claim 2 or 3, characterized in that the actuating device (2a, 2b, 2c, 2d, 2e, 2f) has a manual actuating lever (6) on which the hand (4) acts by applying pressure to the working elements ( 7a, 7b; 7c, 7d, 7e, 7f) of the actuating device (2a, 2b, 2c, 2d, 2e, 2f) in the working position

5 work tool according to claim 4, characterized in that the action of the hand counteracts an elastic jerking force, which tends to the actuating lever (6) and with it the working elements (7a, 7b, 7c, 7d, 7e, 7f) in their ineffective To reset working position

6 Working tool according to claim 5, characterized in that the on

1 1 Operating lever (6) acting elastic return force is exerted by a spring (8), such as a leaf spring, a leg spring or a coil spring

7 Working tool according to claim 4, characterized in that the manual actuating device is a cutting device (2a) and the working elements (7a) are blades

8 work tool according to claim 7, characterized in that the lingen (7a) have seats (77a) for holding the objects to be shuttered

9 Working tool according to claim 4, characterized in that the manual actuating device is a pair of scissors (2b) and the working tools (7b) are knives

10 work tool according to claim 4, characterized in that the manual actuating device is a punching device (2c) and the working element (7c) one

Cutting edge is

11 Working tool according to claim 4, characterized in that the manual actuating device is a punching device (2d) and the working element (7d) is a stamp

12 Working tool according to claim 4, characterized in that the manual actuating device is a bending punching device (2e) and the working element (7e) is a cutting edge

13 Working tool according to claim 4, characterized in that the manual actuating device is a drilling device (2f) and the working element (7f) is a tip

14 work tool according to one of the preceding claims, characterized in that

12 that the device (2a, 2b, 2c, 2d, 2e, 2f) is actuated directly by the thumb of the hand (4)

15 Working tool according to claim 5, characterized in that the elastic return force acting on the actuating lever (6) is generated by deformation of the material when the device (2a, 2b, 2f) is actuated

16 work tool according to one of the preceding claims, characterized in that it comprises a Schiltßelement (99) which holds the device (2a, 2b, 2c, 2d, 2e, 2f) in the effective working position in the closed position

17 working tool according to claim 4, characterized in that an elastic jerking hollow force is provided which tends to hold the actuating lever (6) and with it the working elements (7a, 7b, 7c, 7d, 7e, 7f) in their effective working position

13