EP1005961B1 - Pocket tool with various tool bits - Google Patents

Description

The invention relates to a pocket tool with an elongated serving as a handle and a receiving area for those that can be brought out of the handle into a functional position Functional parts having body element, being on the body element a pivotable bit key and a bit receiving area are formed and wherein the bit key is formed from a shaft on one of which End of the key area and at the other end to the longitudinal central axis of the shaft offset pivot bearing area are formed.

Pocket tools of this type are known, for example, as pocket knives, with two bowls serving as a book, lying opposite each other, between them one or more functional parts, such as knife blades, corkscrews, screwdrivers and the like. Swung out and essentially by spring pressure in swung in or out are kept. These are in the most varied Embodiments known. They usually have several, e.g. B. about Functional parts pivotably arranged on rivet bolts, their functional surfaces designed as a knife blade, can opener, nail file, corkscrew and the like are. In addition, pocket knives are also known, which are the most varied Include tools as functional parts. For example different slotted and Phillips screwdriver sizes or different Sizes of internal and external hex keys on a pocket knife arranged. These functional parts are between parallel to each other lying boards that are connected to each other via rivet bolts and of which the outer ones are covered with one of the two shells. The bowls shape the optical appearance of a pocket knife but also responsible for ergonomics and grip. In addition is it is known to provide the shells with insertion channels, for example Toothpicks, tweezers or cleaning needles for spray nozzles of motor vehicle windscreen washers take up.

Equipping pocket knives with for a wide variety of uses suitable functional parts are also reflected in that known pocket knives are combined with a writing instrument. Such Pocket knives are subject to high assembly costs and cause therefore a cost-intensive production.

Known pocket tools, preferably pocket knives, usually have functional elements that can be swung out to the side and that extend laterally from the Contour of the housing element partially protrude and in known per se Way are palpable with your fingertips. They can be swiveled against springs stored so that both in the pivoted transport or storage position a holding force also acts in the pivoted-out functional position. This will applied by the elastic elements and can not be controlled. So It can happen that the functional elements are accidentally used fold. In addition, the feathers wear out over time, which continues has an unfavorable effect. Another disadvantage of pivotable functional elements exists in that these are usually pivotable about an axis and thus absorb torsional forces only to a limited extent. Other functional elements are inserted into slots in the shells or in the body element and can be removed. Pocket tools are usually used for certain general functions designed and in the rarest of cases are pocket tools for special ones Individual tasks designed because this is associated with too high costs. In particular are not pocket tools with exchange elements and are too versatile Functions in the field of electrical devices, in particular computer technology known.

Pocket tools according to the generic term of Claim 1 are from EP 776737 A or US 5802936 A known.

Starting from the known prior art, the present invention has for its object to provide a pocket tool of the generic type, which is of the most compact design possible, easy and safe handling and which also ensures that the available functional elements both in their unfolded and even in their folded-in functional position, they reliably absorb the lever and torsional forces that occur at least in the normal use of the pocket tool.

In addition, an improved control of the holding forces in both the Transport as well as in particular be made possible in the functional position.

For the technical solution to this problem, a generic pocket tool is further developed in that the bit receiving area is formed by recesses in functional or intermediate boards and serves to receive a bit magazine that can be moved out of the body element and that the bit key with its swivel bearing area is mounted against a spring element. the guide track of the spring element mounted against the swivel bearing area of the bit key and the edge of the swivel bearing area guided thereon being designed as a cam / cam track pair.

Further advantageous features of the invention emerge from the subclaims.

A bit key that can preferably be swung out is essentially one Shank formed with a key area on one end and the other end has a pivot bearing area. The pivot bearing area is preferred offset to the longitudinal central axis of the shaft. Through this crank-like training there are a number of advantages. Firstly, in the body element formed by the laterally pivoted shaft, a receiving area for the other is the longitudinal central axis of the bit key in the swung-out state next to the longitudinal central axis of the body element, ie laterally offset. Thereby excellent leverage results and the plate-shaped design Swivel bearing area can have large torsional forces on the body element transmitted so that forces of corrosion can be absorbed well. The Swivel bearing area is provided with cams, and is along a guideway a spring element moves. The spring element in turn has cam sinks on, in the at least in the end positions of the bit key Snap the swivel bearing area into place. This will make the Holding forces both in the swung-in position and in the swung-out position Functional position significantly improved. Through this training it is possible to use weak spring elements. According to the invention short spring elements can be used, which are only a partial length of the body element take in. Compared to conventional spring elements is one Can be shortened to 30% to 50% of the length. The spring element is preferred equipped with a spring lever to improve power.

The key area has at least two different internal hexagon, the are formed axially one behind the other in the key. One is for recording the bits, the other can be used, for example, for certain nuts, nut bolts or the like. For example, in the computer field D-SUB connector used with typical nut screws. The bits are double-sided according to a particularly advantageous proposal of the invention.

The receiving area in the pocket tool is preferably made in boards, So function boards or intermediate boards formed recesses. In the receiving area there is preferably a pivotable bit magazine used. The bits are according to an advantageous proposal of the invention formed as double bits, so have a functional area at both ends.

The pocket tool preferably has a large number of other functional elements on, for example, one or two knife blades, different slotted screwdrivers, for example 1 1/2, 3 and 6 mm, possibly a pair of pliers, Wire cutters, sleeve presses, scissors, capsule openers, wire strippers, Can opener, tweezers etc. The bit magazine is preferably for four bits, single bits or double bits, which are used in particular in electrical appliances, computers, Toys and the like are most common. One speaks of so-called Potsidrive, Torx, Philips and hexagon. The pocket tool is Space and weight saving, and also absolutely functional.

Between the spring element and the swivel bearing area of the bit key are oblique to the longitudinal center line of the pocket tool or printing areas. These 20 ° to 40 ° inclined surfaces allow the Use of small or weak spring elements. In addition, the training does of the pivot bearing area and the guideway of the spring element as Cam / cam track pair that in the end positions a cam in a cam depression engages, so that corresponding holding forces in particular in the Functional position are provided.

This cam track combination can also be used with the other functional elements be used.

Overall, the invention is a space and weight-saving, functional and very good in the electrical appliance sector, especially in the computer sector usable tool provided.

Fig. 1

eine explosionsartige Darstellung eines Teils eines erfindungsgemäßen Taschenwerkzeugs;

Fig. 2

einen Schnitt entlang der Linie A-A gemäß Fig.1;

Fig. 3

einen Schnitt entlang der Linie B-B gemäß Fig. 1;

Fig. 4

einen Schnitt entlang der Linie C-C gemäß Fig. 1;

Fig. 5

ein Detail im Schwenklagerbereich gemäß Fig. 1 mit ausgeschwenktem Bitschlüssel;

Fig. 6

eine Draufsicht auf eine Zwischenplatine und

Fig. 7

eine Detaildarstellung eines Nocken/Nockenbahn-Paares.

Further advantages and features of the invention result from the following description with reference to the figures. Show:

Fig. 1

an exploded view of part of a pocket tool according to the invention;

Fig. 2

a section along the line AA of Figure 1;

Fig. 3

a section along the line BB of FIG. 1;

Fig. 4

a section along the line CC of FIG. 1;

Fig. 5

a detail in the pivot bearing area of Figure 1 with the bit key swung out.

Fig. 6

a plan view of an intermediate board and

Fig. 7

a detailed representation of a cam / cam track pair.

The embodiment shown in Fig. 1 represents a disc-shaped segment a multi-purpose pocket tool. Usually thin intermediate plates separate so-called boards, the individual tool layers from each other and at the same time form the tool body with the shell elements on both sides. The embodiment shown in Fig. 1 comprises a bit key 1, which about the axis 10 is inserted between two boards. The bit key 1 is a shaft - shaped element that has the actual key in one end Has shape of the hexagon socket 14 and 15, at the other end to the longitudinal central axis of the shaft off the pivot bearing region rotatable about the axis 10. The bit key 1 is spring-loaded against a spring element 8 from the in Fig. 1 pivoted position, namely rotatable by 180 ° in the in Fig. 5 position shown. The bit key is in the form of a segment of a circle at the swivel bearing area educated. Recesses serve on the one hand to save weight, on the other others are designed for holding functions. The circular segment shape gives the bit key good torsional resilience because the forces are large between the boards. Due to the offset of the axis of rotation 10 to the longitudinal center axis results, as shown in FIG. 5, in the functional position a lever between the actual tool body and the central axis of the Key, so that forces can be transferred very well. The circle segment has recesses with cams, wherein in the position shown in Fig. 1 in Closing spring bearing 9 is a pivot-side cam with a spring-side depression interacts. The bit key is thus well in the swiveled-in position held. First, the cam must come out of the depression against the force of the spring element 8 are raised so that the bit key can be rotated further. Due to the oblique arrangement in the locking spring bearing 9 results in relation to the Axis 10 has good leverage. The spring element 8 can due to the described Cam / cam track pairing designed as a short spring element be lever-mounted in the embodiment shown to the spring element force to increase. As shown in Fig. 1, the spring element 8 has one second cam depression 11, which forms an opening spring bearing. Fig. 5 shows the Bit key in the swiveled-out position, the stop point 12 acting as Cam is formed against the opening spring bearing 11. This will generates an increased holding force in the pivoted-out position of the bit key, so that it cannot collapse undesirably. So that the short and light spring element 8 in the closing spring bearing 9 still enough closing pressure in the Exercises transport position on the bit key, in the embodiment shown with a 20 ° inclined sink against a 22 ° cam on the bit key. This Angles can vary depending on the desired increase in the closing or holding pressure vary between 15 ° and 35 °. In the open shown in Fig. 5 Function position, the bit key must be firm enough so that it does not shut down undesirably. This is achieved at angles of around 60 ° in the area the opening spring bearing 11 and the cam in the stop 12 on the talon of the bit key. In practice, this finding is completely sufficient and eliminates the need for an additional locking and unlocking mechanism.

The bit key has a first hexagon 14, which is approximately 2 mm deep, and one second hexagon socket 15. The hexagon socket 14 has in the embodiment shown a width of 5.1 mm to fit the 5 mm or 3/16 "nuts to be used with so-called D-SUB connectors. such Connectors are used in computers and other electronic devices worldwide. The hexagon socket 15 is about 16 mm deep and has a width of 4.1 mm and serves to record single or double bits. In Fig. 1 is in the key a double bit is used. In the swivel bearing area or on the talon of the bit key this also has a flattening 13, which makes it possible with the Bit key in addition to the fully swiveled 180 ° functional position work exceptionally at a 90 ° angled position. Such additional locking position can also be used for other tools.

In Fig. 1, the bit magazine 2 is also shown, which when pressure is applied is pivotable on the protective cam 3 about the axis 4. To do this, the bit key 1 also be swung out. The magazine contains in the shown Embodiment 3 additional double bits. In addition to the pressure on the Protective cam 3 can also exert pressure on the position denoted by 16 to swing out the magazine.

2 to 4 show the details of the overall arrangement, namely the arrangement of the bit magazine between the boards 5, the training two hexagon socket 14 and 15 in bit key 1, the use of the in the Level of the boards 5 lying area 7 through the holding webs of the bit magazine and the same. The bit magazine is, for example, a molded plastic part or also made of metal and has slots for bits or double bits, for example by means of spring-loaded balls in the bit magazine and in the hexagon socket 15 of the bit key are held. After swiveling out the bit key the bit magazine can be swung out as required to provide a corresponding one Take the bit and insert it into the bit key. The specific to this Printed circuit boards 5 are shown in detail in FIG. 6. The board shows a large cut-out area which, as in the sectional illustration in FIG. 3 shown, is required so that parts of the bit magazine are arranged in the circuit board level can be. The bit magazine therefore takes up the area of the function board between the intermediate boards as well as part of the board area yourself one.

The specialty for controlling and improving the holding forces for swing-out Functional elements is also shown in FIG. 7. Fig. 7 shows the Talon 30 of a pivotable about the axis 29 functional element 27 and the corresponding end region of the spring element 28. Between the swivel range of the bit key 1 and the end region of the spring element 28 are for Longitudinal center axis of the pocket tool inclined impact or Printing areas formed. The functional element 27 rests in the transport position with its rest stop area 31 on the rest stop area 32 of the spring element 28. In the exemplary embodiment shown, there is a cam 33 on the talon 30 engaged in a cam recess 34 on the spring element. Thus it results depending on the size of the cam 33 and the spring element force a corresponding holding force in the transport position, i.e. the pivoted-in position Position of the functional element. The angle 35, for example between 22 ° and 37 °, is decisive for the force that has to be applied to the cam 33 lever out of the depression 34. Accordingly, the angle 36 of the Cam sink 34 may be adapted, for example in a range between 20 ° and 35 °. If the functional element is gripped and the force is applied Holding force overcome so that the cam 33 is lifted out of the cam depression 34 the trajectory 37 passes through at the extreme end of the talon the rest stop 32. This slide guide causes a clean swing-out movement of the functional element 27 relative to the spring element 28. Finally the cam designated 38 in the exemplary embodiment shown reaches Talon in the cam depression 39 on the further spring edge. The amount of the attack 42 defines the pivoted position. Also in this pair of cams / valleys are the angle 40 on the cam 38 on the talon 30 and the angle 41 the cam sink 39 on the spring element 28 matched, for example both at about 60 °. This results in a corresponding holding force of the functional element 27 in the pivoted-out position, so that, for example an unintentional folding back when using is largely excluded is.

The exemplary embodiments described serve only for explanation and are not restrictive. In particular, only one holding cam can be at the end of the talon be designed to increase the force in one of the end positions. Cams can also be formed on the spring and cam sinks on the talon. Corresponding backdrop guides of the same type are also conceivable.

LIST OF REFERENCE NUMBERS

1

wrench

2

bit magazine

3

protection cams

4

axis

5

circuit board

6

magazine area

7

platinum level

8th

spring element

9

Closing spring camp

10

axis

11

Opening spring camp

12

stop point

13

flattening

14

hexagon

15

hexagon

16

pressure point

27

functional element

28

spring element

29

axis

30

coupon

31

rest stop

32

rest stop

33

cam

34

depression

35

angle

36

angle

37

trajectory

38

cam

39

depression

40

angle

41

angle

42

attack

Claims (10)

1. Pocket tool with an elongated body element that serves as a handle and possesses a space for the accommodation of functional components which can be moved out of the handle into a functioning position, where a pivotally disposed tool bit key (1) and a tool bit holding space are formed in the body element and where the tool bit key (1) has the form of a shank, at the one end of which the key region, and at the other end of which a pivotal bearing region offset relative to the longitudinal central axis of the shaft are formed,
   characterised in that the tool bit holding space is made up of recesses in functional and intermediate plates (5) respectively and serves to accommodate a tool bit magazine (2) that can be moved out from the body element, and in that the tool bit key (1) is mounted with its pivotal bearing region against a spring element (8), where the guiding track of the spring element (8) mounted against the pivotal bearing region of the tool bit key and the edge of the pivotal bearing region guided by it have the form of a cam/pair of cam tracks.
2. Pocket tool in accordance with claim 1, characterised in that the pivotal bearing region of the tool bit key (1) has the form of a segment of a circle and has recesses (33, 38) with cams.
3. Pocket tool in accordance with claim 1 or 2, characterised in that the pivotal bearing region has a flattened portion (13).
4. Pocket tool in accordance with claim 3, characterised in that the flattened portion (13) is formed in the pivotal bearing region so that it is substantially opposite to the shank of the tool bit key (1).
5. Pocket tool in accordance with one of claims 1 to 4, characterised in that the spring element (8) has a first and a second cam recess (9, 11).
6. Pocket tool in accordance with one of the preceding claims, characterised in that the spring element (8) possesses a portion substantially in the form of a bar.
7. Pocket tool in accordance with one of the preceding claims, characterised in that the spring element (8) is of a length which is only part of the length of the body element.
8. Pocket tool in accordance with one of the preceding claims, characterised in that striking or thrust faces are formed between the pivotal bearing region and the spring element (8) which extend obliquely relative to the longitudinal central axis of the pocket tool.
9. Pocket tool in accordance with one of the preceding claims, characterised in that the key region has at least two hexagonal socket regions (14, 15) with different widths which are disposed axially one behind the other.
10. Pocket tool in accordance with one of the preceding claims, characterised in that a protective cam (3) is formed at the tool bit magazine (2) which is located opposite to the key region when the tool bit key (1) is folded in.

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