WO2011018238A2

WO2011018238A2 - Tool and tool unit

Info

Publication number: WO2011018238A2
Application number: PCT/EP2010/004982
Authority: WO
Inventors: Danny Meiners; Jan Tegelmann
Original assignee: Danny Meiners; Jan Tegelmann
Priority date: 2009-08-13
Filing date: 2010-08-13
Publication date: 2011-02-17
Also published as: DE102009037024A1; DE102009037024A8; WO2011018238A3

Abstract

The invention relates to a tool (1; 100) for tensioning, holding by clamping or expanding one or more work pieces (101; 102), components or the like, wherein the tool (1) comprises a tool stem (2) and at least one first and one second arm (3, 4; 112, 113) extending therefrom, wherein each of them is provided or can be provided with clamping and/or expanding jaws (5, 6; 115, 116; 120, 121). At least one clamping or expanding jaw (5, 6; 120, 121) of the second arm (4; 112) can be mounted movably relative to the first arm (3; 113) such that the distance with respect to the first arm (3; 112) can be varied. The tool is designed such that the displaceable clamping and/or expanding jaw (5, 6; 120, 121) can be displaced parallel to the tool stem (2) with a component by means of a motor.

Description

Description:

Tool and tool unit

The invention relates to a manually portable tool for clamping, clamping holding or spreading of one or more workpiece (s), components or the like, wherein the tool comprises a tool stem and at least two outgoing therefrom jib, in each case with clamping and / or expanding jaws are provided or providable, and wherein at least one clamping or expanding jaw of a second arm to a first arm is movably held such that their distance from the first arm is variable, according to the preamble of claim 1 and especially a tension clamp according to the preamble of the claim 17 and a tool unit.

Tools according to the preamble of claim 1 or claim 17 are known for example from DE 195 00 128. When using such clamps, about to hold two components together in an adjusted position, a hand is often required to hold the parts initially in position and a second hand to attach the tool, so the clamp or the like. To tighten their jaws against each other another hand is required both in fixed arms and at least one movable boom, so that often, such as carpentry or metal, a second person must provide assistance. The work is considerably more expensive and expensive.

The invention is based on the problem of achieving a simplification in the handling of such tools.

The invention solves this problem by a tool with the features of claim 1 and by a tool unit with the features of claim 9 or by a clamp with the features of claim 17. With regard to advantageous embodiments is dependent on the dependent claims 2 to 13, 16 and 18 to 22 referenced.

By the invention, in the embodiment according to claim 1, such a tool for clamping, clamping holding or spreading of one or more workpiece (s), components or the like is provided, in which at least one clamping jaw of the second cantilever to the first boom so movably halterbar is that it can be displaced with respect to the first arm motor with a component parallel to the tool trunk and thereby can apply the spreading or clamping force without manual movement. In this case, either the second arm can be firmly attached to the tool trunk, as described in claim 17, so that an approximately U-shaped bracket provided as the base body of the tool and only the spreading or jaw against this base body is motor-displaced, or It can be the entire second boom including the clamping and / or expanding jaw held thereon with a component parallel to the tool master motor displaced, as shown for example in Figures 1 ff. This option is particularly favorable for the connection of an external, motor-driven tool spatially.

In both embodiments, it is possible that a motor drive and an operating switch are an integral part of the tool for the displacement of the clamping or expanding jaw and possibly the boom. Then, an operating switch for the drive unit to a handle part of the ferrule body ^'is arranged. Alternatively, it is possible in both cases that the displacement of the clamping or expanding jaw and possibly the boom, a motor drive of an external and operatively connected to the tool operatively connected, power tool can be used, such as a cordless screwdriver or the like. Then the tool itself can be inexpensively and easily and without the expense and weight of their own drive and possibly a separate battery. At the same time, a power tool that can be used for various purposes, for example also for drilling and / or screwing, in particular electric tools, can be supplied for further use, so that a particularly high level of effectiveness results. This is especially true in the simultaneous use of multiple clamps or similar clamping or spreading tools in which then each individual can be easily formed and only a single drive motor on the external tool is required to operate all the tools.

A tool unit with an aforementioned clamping, clamping and / or spreading tool and with a motorized drilling and / or screwing tool on which the tool can be mechanically held and from which it can be driven by a motor is therefore claimed separately. This unit can also be traded together.

In particular, it is advantageous if the drilling and / or screwing tool comprises a handle over which both the drilling and / or screwing tool as well as the clamping, spreading or clamping tool attached thereto can be held together with one hand. This handle may also include an operating switch, with the one-hand operation and the movement of the clamping and / or expanding jaw is controllable in two directions. If the tool stem of the clamping or spreading tool includes a toothed rail, a spindle or the like, along which the clamping or expanding jaw and possibly the boom is movable, this can be attacked easily and reliably in continuous operation with a driven gear so as to Shift effect.

In particular, the tool comprises a spouting rotatable shaft, via the rotation of the displacement of the clamping or expanding jaw and possibly the boom relative to the tool stem is effected. Then this spreader shaft is easily usable for attachment to an external motor device. It can, for example, be used with its outreaching end in a receiving chuck, for example a hexagon bit receptacle, a hand tool designed as an electromotive drilling and / or screwing tool, solely by movement axially to the shaft extension and held there like a bit either without further securing or be secured about a quick release, so as to achieve short set-up times for connection to the power tool and for solving this.

In order to be able to take into account different spatial relationships of the tools that can be attached to components or the like, it is helpful if a plurality of outreaching shafts are provided which can be gripped from different directions by a motorized hand tool. For example, an expansive rotatable shaft can advantageously extend parallel to the tool stem and another in extension of the second arm, ie approximately perpendicular to the first. In addition, it is favorable for the connection with the power tool when the clamping, clamping and / or spreading tool in the region of the rotatable shaft comprises a mechanical support, by means of which it is firmly halterbar to an electric motor drilling and / or screwing. As a result, in the connection position, a tight fit of the clamping, clamping and / or spreading tool is ensured on the power tool, so that it is sufficient to hold only the power tool with one hand. As a result, the clamping, clamping and / or spreading tool is automatically firmly in grip.

This holder may be about a rotatable shaft at a distance encompassing ring body, such as a clamping ring in the Diameter corresponds to a standard ring which can be placed on an electromotive drilling and / or screwing tool for H aging of a handle or an axial spacer. Thus, no changes are required on the power tool to form said unit. Also, this clamping ring can be provided with a quick release, such as a pivot lever which moves an eccentric. The connection and detachment of the parts of the tool unit is thus quickly possible.

The tool may for example be a simple screw clamp. In this case, the first arm can be fixedly arranged on the tool stem, or both arms can be moved towards or away from each other.

Both in a solution with an internal drive of the tool as well as approach of an external motor tool, the motor can be in particular a compact and inexpensive to produce electric motor.

In order to avoid accidental opening or closing of the tool, it is particularly advantageous if a displaceable clamping or expanding jaw or in the embodiment according to claim 17 a displaceable ferrule is provided with a pawl which engages in the row of teeth, thereby fixing the movable element can be reached even at engine failure. In particular, a located between the external motor and the movement of the clamping or expanding jaw gear is self-locking, so that even in case of engine failure, the ferrule remains in their respective position and, for example, an accidental opening is inevitably prevented. Further advantages and features of the invention will become apparent from the drawing illustrated and described below embodiments of the subject invention. In the drawing shows:

1 is a schematic representation of a tool unit with a clamping clamping and / or spreading tool and this holding, motor-driven hand tool, such as a drilling or screwing tool,

2 is a view similar to Figure 1, but with a slightly more detailed representation of an annular body, via which the clamping tensioning and / or spreading tool can be attached to the motor-driven hand tool,

3 is a view of the clamping-clamping and / or spreading tool - without the scheduled motor hand tool - approximately from direction III-III in Figure 1,

Fig. 4 is a sectional view of the clamping clamping and / or

Spreading tool according to the section IV-IV in Figure 3,

Fig. 5 is a perspective view of the clamping clamping and / or spreading tool obliquely from the front, wherein the movable arm itself is not shown, but only held in this and with the

Rack of the tool stem cooperating parts of a transmission, 6 the movable boom lying on the side of obliquely from below,

7 shows the movable boom lying on the side obliquely from above,

8 the movable boom upside down,

Fig. 9 shows the movable boom in an upright orientation and with additionally marked, the inner

Structures assigned to structures,

Fig. 10 is a view similar to Figure 2, but an alternative embodiment of the clamping clamping and / or spreading tool with an inside of a

Hollow shaft held threaded rod and a mother this encompassing threaded rod,

1 1 is a section along the line XI-XI in Figure 10,

Fig. 12 is a side view of another alternative

Clamping clamping and / or spreading tool with two fixed arms, against which only a clamping arm expanding jaw is individually displaceable.

The tool 1 drawn in FIG. 4 can be used for clamping, clamped holding or spreading of one or more workpieces 10 1, 102 (FIG. 12), components or the like. For this purpose, the tool 1 comprises a tool stem 2 and at least a first boom 3 and a second boom 4. Both boom 3 and 4 are based on the tool stem and are here approximately transversely at a right angle from this off, which j edoch not is mandatory. Both cantilevers 3, 4 may in each case have mutually facing jaws 5 and / or expander jaws 6 facing away from each other, wherein the jaws 5 and expander jaws 6 are integrally formed with the jib 3, 4 or as separate parts, such as plastic shoes, attachable thereto could be .

According to the embodiment shown in Figure 4, the second boom 4 is movable in total with its jaw 5 and its expanding jaw 6 with a component parallel to the tool stem 2 in the direction of the arrow 7, so that their distance from the first boom 3 is variable, and thus at Approaching parts between the arms 3 and 4 and the associated clamping jaws 5 can be clamped or in the case of countermovement a spreading via outer spreading jaws 6 can take place.

The displacement of the clamping 5 and / or expanding jaw 6 - and here also the associated boom 4 - with a component parallel to the tool stem 2 takes place while motor, so that this no hand of a user is needed. According to the embodiment of Figure 4 are clamping and / or expanding jaws 5, 6 together with a boom 4, to which it is held, displaced. Here, only one boom 4 is displaced, while the first boom 3 is firmly connected to the tool trunk. Also, both arms 3, 4 could be movable. The drawn tool 1 can be used as a screw clamp. The booms 3, 4 may for example be milled, in particular the boom 4, in order to create room for a transmission described in more detail below. Overall, the boom 4 - depending on the requirements, for example, aluminum or steel or at lower requirements also consist of plastic.

According to the embodiment shown in Figure 12, however, both arms (clamp arms 1 12, 1 13) and with the clamp stem 1 14 are firmly connected to the local tool 100. The whole forcing body with the areas 1 12, 1 13 and 1 14 can be in one piece. There is only one ferrule 120 in a closed ring guide 1 18 via a row of teeth 1 19 linearly displaceable. However, this ferrule 120 also carries a clamping and / or expanding jaw 12 1, 122, so that here too at least this clamping or expanding jaw 12 1, 122 of the second arm 1 13 to the first boom 1 12 is such movable held, that her Distance from the first boom is variable, and also motorized, as will be explained in more detail below.

Both mentioned embodiments can bring about the displaceability of the boom 4 with the clamping jaw 5 and the spreading jaw 6 or the forceps rod 120 with the clamping jaw 12 1 and the spreading jaw 122 via a motor drive unit 130 which together with an actuating switch 17 on the Handle 1 1 1 integral part of the tool 1 or 100 is. This is shown here for the tool 100 according to FIG.

It is particularly advantageous if a plurality of tools of the type mentioned is required that for displacement of the clamping or expanding jaws 5, 6 and possibly the boom 4, a motor drive 8 of an external and the tool 1 to create an operative connection coupled, motorized hand tool 9 is usable. In this way, a tool unit 10 is formed which comprises a hand tool 1 for clamping, clamping and / or spreading and a motorized hand tool 9, for example a drilling and / or screwing tool, on which the tool 1 can be mechanically held and of which it is motor driven.

Both the clamping, clamping and / or spreading tool 1 and the power tool 9 are advantageously relatively easily formed. Depending on the length of the shaft, which can typically range from about 10 to about 80 centimeters, results for the hand tool 1, a weight of a few hundred grams.

Further, it is advantageous if - as shown in Figures 1 and 2 -, the drilling and / or screwing tool or other motor tool 9 comprises a handle 1 1, via which both the drilling and / or screwing tool 9 and the attached thereto clamping, spreading or clamping tool 1 are halterbar together with only one hand. Also, this handle an operating switch 12 may be assigned, so that there is a real one-handed operation for the support of the tool 1 and the movement of the boom 4 with the clamping or expanding jaws 5, 6. Furthermore, the motorized hand tool 9 can be assigned at least one battery 13 for wireless operation.

In order to be able to convert the rotational movement of the motor 8 of the hand tool 9 into a rectilinear movement of the arm 4 of the tool 1 in the direction of the arrow 7, the tool stem 2 comprises, for example, a toothed rail, a spindle 15 (see FIGS. 10, 11) or like. According to Figure 1, the toothed rail 14 may be approximately embedded in the tool base 14, riveted on this or formed integrally therewith. Along this toothed rail 14 are the Clamping or expanding jaw 5, 6 and here also the boom 4 movable, by a in the boom 4 rotatable perpendicular to the direction of movement 7 gear 16 (Figure 5) can roll on it. The gear 16 is directly or as shown in Figure 5 indirectly via a deflection gear 15, which can also provide a reduction, connected to at least one outreach rotatable shaft 17 of the tool 1. The torque deflection can be done for example via bevel gears. An expansive rotatable shaft 18 can also extend in a particularly favorable manner parallel to the tool trunk 2 and / or a shaft 17 in extension of the second arm 4, similar to what is drawn in FIG. About the motor-driven rotation of this shaft 17 and 18 then the displacement of the clamping or expanding jaw 5, 6 and possibly the boom 4 relative to the tool stem 2 can be effected. For this purpose, in the position shown in Figures 1 and 2, the rotatable shaft 17 with its extended end in a receiving chuck, such as a hexagonal bit holder, a trained as an electromotive drilling and / or Schraubwerkzeugs hand tool 9 used, which alone by axial mating without further Backup can be accomplished with a single handle.

In addition. the tool 1 in the region of the rotatable shaft 17 is associated with a mechanical support 19, by means of which it is firmly halterbar to an electric motor drilling and / or screw 9. Here, this holder 19 comprises a rotatable shaft 17 at a radial distance encompassing annular body 20 which is clamped and for this example includes a wing nut 2 1 or a quick release. The holder 19 is connected according to Figure 2 with the rearward extension of the boom 4, for example, clamped on this. The annular body 20 facing out from there corresponds in diameter to otherwise the standard ring which can be placed on an electromotive boring and / or screwing tool 9 for holding a handle or an axial spacer. The ring diameter can therefore be formed 9 similar for all major power tools. Through the wing nut 2 1 or a quick release, for example, a pivot lever with an eccentric, the clamping can be quickly and advantageously also effected with one hand, so that the power tool 9 can be quickly changed from a tool 1 to the next. For example, the power tool 9 can be easily inserted with its - end in an open ring 20 and at the same time record the shaft 17 or 18 automatically centered. Then only the quick release of the ring 20 is closed, or this closes, for example by spring force automatically, so that then immediately the adjustment of the boom 4 can be triggered via the operating handle 12. A standard slip clutch in the device 9 can limit the maximum torque. In addition, a reduction can be created by the pitch of the rack 14, 19 or the spindle 15. In the illustration according to FIGS. 10 and 11, the tool stem 2 is provided on its left side in FIG. 11 with an axial slot 22 through which the movable arm 4 can pass. This boom 4 surrounds in the shaft 2 a spindle 1 5 in the manner of a nut 23 or is connected to a nut. As above, a torque is introduced via one of the outreaching shafts 17, 18 and converted via a deflection gear - now into a rotational movement of the spindle 15 about its longitudinal axis. As a result, the nut 23 is taken along with the boom 4 in the direction of the arrow 7, wherein this movement is purely linear, as by the narrow slot 22, a rotation of the boom 4 is excluded. Again, the reversing gear 24 and the spindle 15 is self-locking, so that an adjustment solely by force on the clamping or expanding jaws 5, 6 is excluded even when idling motor 8. Further security measures are then unnecessary. In the above-mentioned embodiment of Figure 12 is connected by a structurally connected to the clamp body motor drive unit 130, here an electric motor, the clamp rod 120 is driven. An external power tool 9 is then unnecessary. However, then each ferrule 100 must be individually equipped with a motor - and possibly battery - which increases the cost and weight. Here, too, a real one-hand operation via the handle 1 1 1 and the actuating switch 1 17 is possible, so that a second hand of the user remains free in the same way and, for example, for adjusting the components 1 0 1, 102 is available , About the drive 130 here the gear 13 1 is driven, which then acts on the extending in the direction of the extension of the ferrule 120 at this row of teeth 1 19 meshing and this with the jaw 12 1 and the expanding jaw 122 along the arrow 7 in the closed ring guide 1 18 relocated. Again, instead of the drive gear 1 31 provided a drive screw be directly connected to the drive unit 130, waiving a gearbox.

As an additional backup here is a spring-loaded pawl 134 is provided which engages in the row of teeth 1 19 and this can fix so with respect to the guide 1 18. In this case, preferably, the pawl with a sensor-controlled

Trigger equipped that can retract the pawl in the locked position in case of power failure. Self-locking is also possible here.

LIST OF REFERENCE NUMBERS

Tool, 100 tool,

Tool stem, 10 1 workpiece,

first boom, 102 workpiece,

second boom, 1 1 1 handle,

Jaw, 1 12 first boom,

Expanding jaw, 1 13 second boom,

Movement direction, 1 14 ferrule stem, motor drive, 1 15 jaw, motor 1 16 spreader jaw,

Hand tool, 1 17 operating switch,

Tool unit, 1 18 ring guide,

Handle, 1 19 row of teeth,

Actuator switch, 120 ferrule,

Battery, 12 1 jaw,

Rack rail, 122 Spreading jaw,

Reversing gear, 130 drive unit,

Gear, 131 gear,

extended shaft, 134 pawl

sweeping wave,

mechanical mount,

Ring body,

Wing nut,

axial slot,

Mother,

deflecting

Claims

Godparent sayings:

1. Tool (1; 1OO) for clamping, clamped holding or spreading of one or more workpiece (s)

(101; 102), components or the like, wherein the tool (1) comprises a tool stem (2) and at least a first and a second thereof extending outrigger (3,4, 112,113), each with clamping and / or expanding jaws ( 5, 6, 115, 116, 120, 121), and wherein at least one clamping jaw (5, 6, 120, 121) of the second jib (4, 113) adjoins the first jib (3, 112) in such a way is movable halterbar that their distance from the first boom (3; 112) is variable,

characterized,

in that the displaceable clamping and / or expanding jaw (5, 6; 120; 121) can be displaced by motor with a component parallel to the tool trunk (2).

2. Tool (1) according to claim 1,

characterized,

that the clamping and / or expanding jaw (5; 6) together with the arm (4) on which it is held, is displaceable.

3. tool (1; 100) according to one of claims 1 or 2,

characterized,

in that a motor drive (130) and an actuation switch (117) are fixed in order to displace the clamping and / or expanding jaws (5, 6, 120, 121) and possibly the cantilever (4)

Part of the tool (l; 100) are.

4. tool (1; 100) according to one of claims 1 or 2, characterized,

a motor drive (8) of an external and with the tool (1) can be coupled in operative connection, motorized hand tool (9) is used to move the clamping or expanding jaw (5,6; 120,121) and possibly the boom (4).

5. tool (1; 100) according to one of claims 1 to 4,

characterized,

in that the tool trunk (2) comprises a toothed rail (14, 119), a spindle (15) or the like, along which the clamping or expanding jaw (5, 6, 120, 121) and possibly the extension arm (4) are movable. 6. tool (1; 100) according to one of claims 1 or 2 and 4 or 5,

characterized,

in that the tool (1) is a spreading rotary shaft

(17; 18), about the rotation of the displacement of the clamping or expanding jaw (5,

6; 120, 121) and possibly the

Jib (4) relative to the tool stem is effected.

7. tool (1; 100) according to claim 6,

characterized,

in that an outreach rotatable shaft (18) extends parallel to the tool trunk (2) and / or (17) in extension of the second arm (4).

8. tool (1; 100) according to claim 7,

characterized,

that the rotatable shaft (17, 18) with its extended end into a receiving chuck, such as a hexagonal Bitaufnahme, a trained as an electromotive drilling and / or Schraubwerkzeugs hand tool (9) can be used.

9. Tool (1: 100) according to one of claims 6 to 8,

characterized,

the tool comprises, in the region of the rotatable shaft, a mechanical holder (19) by means of which it can be securely held on an electromotive boring and / or screwing tool (9).

10. tool (1; 100) according to claim 9,

characterized,

in that the holder (19) comprises a ring body (20) engaging around the rotatable shaft (17;

11. Tool (1; 100) according to claim 10,

characterized,

that the annular body (20) is a clamping ring.

12. tool (1; 100) according to any one of claims 10 or 11, characterized

in that the annular body (20) corresponds in diameter to a standard ring which rests on an electromotive drilling and / or screwing tool (9) for holding an additional one

Handle or an axial spacer can be placed.

13. Tool (1; 100) according to one of claims 1 to 12

characterized,

the tool (1; 100) is a screw clamp.

14. Tool (1; 100) according to one of claims 1 to 13, characterized,

in that the first extension arm (3; 112) is fixedly arranged on the tool trunk (2; 114).

15. Tool unit (10) with a tool (1; 10O) according to one of claims 1 or 2 or 4 to 14 and a motorized drilling and / or screwing tool (9) on which the tool (1; 100) can be mechanically held and from which it is motor driven (8).

16. Tool unit (10) according to claim 15,

characterized,

in that the drilling and / or screwing tool (9) comprises a handle (11) via which both the drilling and / or screwing tool (9) and the clamping, spreading or clamping tool (1; are only halterbar one hand.

17. A manually operated clamping clamp (100) for holding, spreading and / or fixing objects (101, 102) with a bow-shaped ferrule body (110) and with two at a distance from each other on a ferrule trunk (114) arranged substantially at right angles to the ferrule (114) protruding ferrule arms (112; 113), characterized

the clamp arms (112; 113) are fixedly connected to the clamp stem (114) such that one of the clamp arms (113) carries a yoke rod (120) which is linearly adjustable in a guide (118) facing the other clamp arm (112) and / or carries on the opposite side a respective clamping jaw (121, 122) that the other clamp arm (112) lying in alignment with the clamping jaws (121, 122) of the clamp rod (120) on a the forceps rod (120) facing and / or facing away also a clamping jaw (15; 16) carries that the ferrule (120) by changing the distance between the clamp arms (12; 13) is movable and lockable and that by a Baueinheitlich with the Ferrule body (110) connected to the motor drive unit (130) the clamp rod (120) is drivable.

18. Clamp according to claim 17,

characterized,

the drive unit (130) is an electric motor.

19. Clamp according to one of claims 17 or 18,

characterized,

that the guide (118) is a closed ring guide.

20. Clamp according to one of claims 17 to 19,

characterized,

in that the clamp rod (120) has a row of teeth (119) running in its direction of displacement, which meshes with an output gear (131) of the drive unit (130) and is therefore adjustable.

21. Clamp according to one of claims 17 to 20,

characterized,

an actuation switch (117) for the drive unit is arranged on a handle part (111) of the clamp body ^' .

22. Clamp according to one of claims 17 to 21,

characterized, that force bar with a pawl (134) which engages in the row of teeth (119), with respect to the guide (118) is fixable.