WO2013013936A1

WO2013013936A1 - Positioning device for clamping tools and clamping device

Info

Publication number: WO2013013936A1
Application number: PCT/EP2012/062856
Authority: WO
Inventors: Frédéric Martin
Original assignee: Martin Frederic
Priority date: 2011-07-26
Filing date: 2012-07-02
Publication date: 2013-01-31
Also published as: DE102011108423A1

Abstract

The invention relates to a positioning device (1) for clamping tools, in particular tension clamps, which serves to clamp work pieces (2, 3) together for mitering, for example. The positioning device according to the invention comprises a clamping assembly (4, 40) and a clamping tool positioning surface (5, 50), wherein the clamping assembly comprises two clamping jaws (7, 8) by which the positioning device can be freely attached to a work piece by clamping between the clamping jaws. The device according to the invention has a joint assembly (6, 60) which connects the clamping assembly and the clamping tool positioning surface to each other in a movable and lockable manner.

Description

Attachment device for clamping tools and clamping device

The present invention relates to tools and auxiliary tools that can be used in various craft activities, such as carpentry and carpentry, but also in working with metal, plastic, glass and other materials. The present invention relates in particular to devices which serve to fix workpieces in a specific position in the short to medium term, for example in order to be able to permanently connect workpieces with one another and / or to carry out work on a workpiece. The invention relates in particular to a piecing device for clamping tools and to a clamping device which comprises the piecing device as well as a clamping tool. In a preferred embodiment, the invention relates to a clamping tool attachment device for clamping workpieces, such as mitres, comprising a clamping device and a clamping tool attachment surface, the clamping device comprising two clamping jaws through which the attachment device clamps to a workpiece the jaws can be freely attached.

Clamping devices of the aforementioned type are known for example from DE 198 57 793 AI and generally relate to the task of improving the connection of two workpieces by miter with each other, or to facilitate the process of joining by a craftsman himself and to allow more accurate work, and thus in The result is a more accurate, cleaner and more stable eared connection.

The object of the invention is based not only in connection with the miter, that is, with a corner joint two at an angle aufeinanderstos sender elongated workpieces. Generally speaking, the present invention is concerned with providing a means which makes it possible to stabilize any workpiece on another workpiece or on a larger, stationary structure at least in the alternative or temporarily in order to be able to work on it, or about the two structures connected in the short term permanently connect, for example, to glue. In the case of the problem mentioned, it should be noted that one (or both) of the workpieces may be in an unstable position, that is, must be stabilized against the effect of its own gravity. Furthermore, it may happen that a workpiece has to be fixed in a final, possibly difficult to reach position, for example on a wall or on a staircase. In these situations, it is not always possible to use an aid that must be placed on the ground or otherwise rely on a stable base or pedestal. In this regard, it is advantageous if a tool can be freely attached to the workpiece without additional support or support pad.

When workpieces have to be fastened, for example glued, it is also important that a pressure is exerted, which preferably acts perpendicular to the joining surface of the workpieces.

The prior art proposes solutions for the stated objects, in particular with regard to the miter. In the already mentioned document DE 198 57 793 AI has a disadvantage in that the attachment surfaces for the screw clamps occupy a certain angle, which can not be changed discontinuously or only by means of separate adapter pieces. Thus, it is not possible, for example, to clamp workpieces that have an unusual connection angle. Other disadvantages are that the device can not optimally stabilize many different situations of different workpiece connections because of their configuration. The device according to DE 198 57 793 AI is limited to the miter of elongated and relatively thin workpieces, in particular frame parts. The stabilization of an elongate workpiece on a flat, relatively wide work piece, for example, is possible with this device only to a limited extent.

In DE 34 30 808 AI an abutment device with workpiece contact surfaces and attachment surfaces for clamps is disclosed. To use this device several separate clamping clamps are necessary, on the one hand to fix the device to a workpiece and on the other hand to press the workpieces by means of the device. This may not be possible in certain situations because of lack of space (the knob and the rail of a clamp generally take a lot of space in their axial Direction). The clamp, which fixes the device according to this teaching on the workpiece, always runs at right angles to the contact surface of the workpiece. Therefore, the clamp requires a parallel to the contact surface extending counter-pressure surface, otherwise the device itself can not be fixed and securely attached. For example, the situation shown below in accordance with the present invention in FIG. 12 can not be enabled / released on the basis of the devices disclosed in DE 34 30 808 A1 (step which is to be attached to an inclined cheek carrier) because there is no counterpressure surface for the one clamping clamp which secures the device to itself.

According to one embodiment of DE 34 30 808 AI either the attachment angle are given or, in the hollow cylindrical attachment surfaces, the clamps can only in a certain direction, transverse to the hollow cylindrical holes, are recognized, which in turn limits the applications. In addition, the hollow cylindrical inner surface forms no flat and therefore no optimal attachment surface for a conventional clamp. Even in a further embodiment of this document, a device securing the screw clamp and the factory parts connecting screw clamp can be mounted only in such a way that the clamping axes are all in a single plane, namely in or parallel to the plane of symmetry of the device. However, it may be desirable in certain situations when the tensioning axis that secures the device lies in a different plane than the tensioning axis that holds together different workpieces.

Other devices which at least remotely concern the problem of the present invention are, for example, in DE 37 44 499 AI, DE 36 25 926 AI, DE 32 26 248, DE 6 80 34 082.5 Ul, FR 1 473 835, GB 794,664, WO 92/05916 , and DE 1 726 977 U. However, these devices have disadvantages. Some of the known devices are cumbersome, complex and / or have to be parked on a flat surface. Other disadvantages relate to the clamping axis, which is not directed in all cases transversely to the bonding surface of the workpieces and / or does not act directly on the joint surface. Although workpieces can be stabilized with some of the known devices, an adjustable, if necessary, high pressure can not be exerted on the connecting surface of workpieces to be fastened to one another. In addition, with some of the known devices can not arbitrary connection angle be set between the parts, that is, for example, only rectangular connections are possible, or the covered span at connection s angles is small and / or not continuous. The present invention has for its object to avoid the disadvantages mentioned and to develop a piecing or clamping device that is simple and easy to handle.

To solve this problem, the combination of features specified in claim 1 is proposed. Further aspects, advantageous embodiments and further developments of the invention will become apparent from the independent claims and the description below.

More particularly, the invention relates to a clamping tool attachment device for clamping workpieces, such as miters, comprising a clamping device (or assembly) and a clamping tool attachment surface, the clamping assembly comprising two jaws through which the attachment device clamps to a workpiece the jaws can be freely mounted, characterized in that the device further comprises a hinge assembly or - device which connects the clamping arrangement and the attachment surface movable and lockable together.

In a further aspect, the invention relates to a clamping tool jig for clamping workpieces, such as a miter, comprising a clamping assembly and a planar, flat clamping tool attachment surface, the clamping assembly comprising two jaws through which the piecing apparatus clamps to a workpiece can be freely mounted between the jaws, characterized in that the attachment surface is attached to the clamping device movable and lockable.

The invention further relates to a clamping device for clamping of workpieces, for example for miter, which comprises a clamping tool, for example a clamp, and at least one and preferably two attachment device according to the invention. In a preferred embodiment of the attachment device according to the invention, the joint arrangement is designed such that it has a substantially stepless, and / or substantially continuous positioning and locking of the attachment surface, in particular with respect to the clamping arrangement or with respect to a workpiece on which the attachment device is attached allows.

In a further embodiment of the attachment device according to the invention, the joint arrangement comprises a separate locking device, which is designed such that the attachment surface can be locked in any position with respect to the clamping arrangement, and / or is independently movable and / or locked, whether the clamping arrangement is attached to a workpiece or not.

In a preferred embodiment of the attachment device according to the invention, the joint arrangement, which comprises, for example, a swivel joint, in a non-locked state allows a pivoting movement of the attachment surface with respect to the clamping arrangement, and / or about an axis of rotation of the joint arrangement.

In a preferred embodiment of the inventive attachment device allows the hinge assembly, in the unlocked state, a pivotal movement of the attachment surface of 45 ° or more, preferably at least 180 ° or more with respect to the clamping arrangement. The pivoting movement thus comprises a rotation angle of 45 ° or more, preferably at least 180 °. In a preferred embodiment of the inventive piecing device, the joint assembly is attached to the clamp assembly via a hinge support and / or is spaced by a hinge support the attachment surface of the clamping assembly, whereby a free pivot radius of the attachment surface is increased in the unlocked state with respect to the clamping arrangement.

In a preferred embodiment of the inventive piecing device, each of the two jaws each have a flat workpiece abutment surface, the joint connecting the Ansetzfläche with the clamping arrangement such that the Ansetzfläche can be positioned so that it lies in a plane perpendicular to at least one the two levels is in which the two workpiece contact surfaces lie.

In a preferred embodiment of the attachment device according to the invention, the clamping arrangement comprises a main part, to which a fixed jaw is fixedly mounted, and a movable part movable relative to the main part with a movable jaw, whereby the attachment device can be attached to a workpiece in that way is clamped between the jaws and / or the movable part is blocked on the main body. In a preferred embodiment of the inventive piecing device, the clamping arrangement has a main part, to which a clamping jaw is fixedly mounted, and a movable relative to the main part, movable part, wherein the hinge assembly is fixedly attached to the main part of the clamping arrangement. In a preferred embodiment of the inventive Ansetzvorrichtung the entire clamping arrangement is connected via the joint with the Ansetzfläche, and / or the clamping arrangement has a main part, wherein the hinge assembly and a movable part of the clamping arrangement are attached to a separate location on the main body. In a preferred embodiment of the inventive piecing device, the clamping arrangement on a main part with a guide for a movable part, wherein the movable part along the guide of a main part mounted jaw away or on this jaw to be moved and blocked at any point on this guide can.

According to a preferred embodiment of the inventive piecing device, both jaws are on the same side of the hinge assembly, so that both jaws are separated together by the hinge assembly from the attachment surface, and / or that the position and / or the angle of the attachment surface in the frame by the Joint arrangement given freedom of movement regardless of the position of each of the two jaws can be adjusted.

According to a preferred embodiment of the inventive piecing device, the clamping arrangement comprises means for blocking, in particular for fastening the Device on a workpiece.

According to a preferred embodiment of the inventive piecing device, a maximum possible clamping span of the clamping arrangement, which is given by the maximum solder distance between the workpiece contact surfaces of the clamping jaws, be extended by firmly attaching a separate extension part.

According to a preferred embodiment, the attachment device according to the invention comprises a separate extension part, which can be fixedly attached to a main part of the clamping arrangement if necessary, wherein the extension part and one of the two jaws comprise means for blocking this jaw on the extension part, and the other jaw connected to the main part remains.

According to a preferred embodiment of the attachment device according to the invention, at least the fixed jaw has a flat workpiece abutment surface which lies in a plane perpendicular to the plane in which the attachment surface lies.

According to a preferred embodiment of the attachment device according to the invention, the attachment surface is adjustably mounted in such a way that a clamping axis generated by an attached clamping tool always runs parallel to at least one of the two planes in which the workpiece abutment surfaces lie.

In the following the invention will be explained in more detail with reference to the embodiments schematically illustrated in the drawings. Show it:

Fig. 1 is a perspective view of the back of an inventive embodiment of the setting device for clamping tools.

Fig. 2 is a perspective view of the front of the embodiment shown in FIG. 1.

Fig. 3 is a side view of the embodiment shown in Fig. 1.

4 A and 4 B show various perspective views of a joint component of the in the in Fig. 1 shown hinge assembly.

Fig. 5 is a perspective view of another joint component of the joint assembly shown in Fig. 1.

Fig. 6 is a perspective view of a disassembled from the device shown in Fig. 1 sub-assembly, which is part of a clamping arrangement.

FIG. 7 is a perspective view of a subassembly disassembled from the device shown in FIG. 1, which is part of an attachment assembly. FIG.

8A and 8B are a front view and a sectional view of the movable jaw of the clamping device of the embodiment shown in Fig. 1, respectively. 9 shows an embodiment of the attachment device according to the invention, in which an extension part has been fastened to the device shown in FIG. 1 in order to increase its clamping span.

Fig. 10 is a plan view of two workpieces which are clamped together by means of the inventive clamping device.

Fig. 11 is a perspective view of the inventive clamping device and workpieces of a stair railing, which are pressed together by the clamping device.

Fig. 12 is a perspective view illustrating the inventive clamping device when clamping workpieces of a staircase.

Fig. 13 shows a variant of a second joint part with another locking mechanism.

FIGS. 14 and 15 show further views of the embodiment of FIG. 13.

In the drawings, Figs. 1-3 show a first embodiment of the inventive Anchoring device, Figs. 4-8 show individual, disassembled structural elements or subassemblies of the attachment device shown in Fig. 1-3 for the purpose of better understanding. FIG. 9 shows an embodiment of the attachment device shown in FIGS. 1-3, which was provided with an extension part for the purpose of enlarging the clamping width of the clamping arrangement. FIGS. 10-12 illustrate the use and the use of the clamping device according to the invention on the basis of various examples of workpiece connections.

1 and 2 show the rear or front side of an inventive attachment device 1 for clamping tools. The terms "back" and "front" are chosen arbitrarily: the back could just as well be called the front and vice versa. This is because, as described below, the device can be mounted in any position on a, located in any position workpiece. It could also be spoken by one or the other, or by a first or a second page. The embodiment shown has a flat, disk-like support member 41 with a substantially rectangular outline, on the two sides of various other structures are attached. Such a flat configuration of the carrier is not mandatory, and it would therefore also be conceivable that the attachment device does not have two clearly visible, different (front and back) sides.

Location and direction labels such as "top", "bottom", "side", "back", "behind", "front", "forward", "vertical", "horizontal", "left", "right" , and so on relate to the position shown in the corresponding figures of the inventive device or its parts. The skilled artisan will recognize that in use, namely when mounted on a workpiece, the device assumes a position in most cases, which differs from the position shown in the figures, so that the names mentioned can no longer apply. The advantage of the invention lies in the fact that the device can be attached to a workpiece located in a completely arbitrary position, independently of a support resting on the ground, for example, so that parts shown in the drawings above may be located below or laterally ,

The attachment device 1 has a clamping arrangement 4, a joint arrangement 6 and a clamping tool attachment surface 5. The Spannwerkzeugansetzfläche 5 is in this Description also referred to as "attachment surface". As further described below and shown in Fig. 10-12, this Ansetzfläche 5 serves as Ansetz-, Anlege- or pressure surface for a clamping tool, in particular a clamp. The joint assembly 6, which may also be referred to as a hinge device, and the clamping assembly 4, which may also be referred to as a clamping device are constructed in the embodiment shown in each case of several parts and / or assembled. In particular, the clamping arrangement 4 comprises the already mentioned support structure 41, to which the side facing the observer in FIG. 1 (the "back") the hinge arrangement 6, and on the other side further parts of the clamping arrangement are mounted.

As better seen in Fig. 2, at one end of the support structure 41, a first jaw 7 is mounted, which comprises a flat abutment surface 17 which can be applied to a workpiece for attachment of the attachment device. This contact surface 17 consists of a strip of reiberhöhendem, elastic soft covering, for example, a polymer material, preferably rubber, which in turn is embedded in a rectangular, small support plate or jaw plate 13, so that the adhesive contact surface 17 is fixedly mounted and over the surface of the flat Side of the jaw plate 13 goes out. The jaw plate 13 is in turn firmly connected to the plate 15. Together with the jaw plate 13, the contact surface 17 forms a clamping jaw 7. The jaw plate 13 is also referred to as a fixed or fixed jaw plate.

This clamping jaw 7 is also referred to below as a fixed clamping jaw 7 because it is firmly connected to the carrier element 41 via the plate 15. In the illustrated embodiment, this connection is effected by screwing, but could also be accomplished by welding. It is not intended that the structures 7, 13, 15 and 41 be detached from one another during normal use of the device. At most, it may be provided that the non-slipping strip or covering 7, which forms the contact surface on a workpiece, can be replaced. However, the parts 13, 15, and 41, but at least the parts 15 and 41 may also be formed from a single piece. In the illustrated embodiment, the plate 15 is at right angles to the Carrier element 41 connected. The jaw plate 13 lies flat on the lower surface of the plate 15, so that the contact surface 17 is at right angles to the plane in which the support member 41 is located. Furthermore, it may be mentioned that the baking plate 13 is only slightly larger in circumference than the lining 17, just so that the latter can be inserted into the former. The pad 17 could also be applied by gluing or otherwise to being placed on the plate 13. In any case, the surface of the baking plate 13 should preferably not be smaller than that of the lining 17.

Clamp assembly 4 further includes a second jaw 8, also referred to herein as a movable jaw. The second clamping jaw 8 is partially similar in construction to the first clamping jaw, that is to say comprises a lining 18 of friction-increasing, elastic, soft material which forms the actual contact surface with a workpiece. In the exemplary embodiment shown, the workpiece abutment surfaces 17, 18 of the first and second clamping jaws 7, 8, respectively, have identically large surfaces.

The pad 18 is in a (movable) jaw plate 14, analog but mirrored to the fixed jaw plate 13, embedded. This jaw plate 14 is mounted on its opposite (pad) side 18 again on another plate 16, but adjustable, as described in more detail below with reference to FIGS. 8A and 8B. The parts 14, 16 and 18 form a movable jaw 8. The movable jaw 8 is mounted on the support member 41. In contrast to the fixed jaw 7, the position of the movable jaw 8 shown in FIGS. 1 to 3 in a lower position can be adjusted on the support part 41.

The support plate 41 is penetrated by two substantially parallel columns 30, 31. The gaps or cuts 30, 31 extend in the plate 41 in a lateral position, close and parallel to the side edges of the plate 41. In the illustrated embodiment, the movable jaw 8 by means of screws 32, 33, which passes through the respective column 30, 31, be attached. The screws 32 and 33 grasp internal threads which have been drilled in the side surfaces of the plate 16. By tightening the screws 32, 33, the movable jaw 8 can be firmly connected to the support plate 41. By easy, not complete loosening of the screws 32, 33, the movable jaw 8 along the columns 30, 31 are moved parallel. Here are the Bolt of the screws 32, 33 guided in the columns 30, 31, while the heads of the screws and the remaining part of the internal thread of the external thread of the screws prevents complete detachment of the movable jaw 8. As a result, the entire movable clamping jaw 8 can be moved in parallel as if run on rails. This makes it possible to attach the inventive device 1 to workpieces of different thickness. It can still be pointed to the specific realization of the shape of the columns 30, 31. The columns 30, 31 are each laterally slightly flattened, so that formed as a countersunk head of the screws 32, 33 does not protrude beyond the surface of the back of the support plate 41 after tightening, but is completely submerged. Generally, the items shown in the figures are secured together by countersunk screws, and corresponding conical recesses are provided for countersinking the screws.

As can be seen in Fig. 1, the column 32 leads up to the lower end of the support plate 41, so that the column can also be regarded as an incision in the support plate 41. The termination of the gap is formed by a rectangular, elongated edge plate 19 which is fixed to the lower side of the support plate 41, and thus the columns 30, 31 in this direction (down) concludes. As will be described below, this edge plate 19 can be removed and replaced by an extension unit, whereby the covered by the clamping device 4 span or clamping width can be extended. The edge plate 19 preferably has the same thickness as the carrier plate 41 and / or the same width, so that a uniform, smooth connection between the plates 19 and 41 is made possible, and the two parts appear or act as a single part. The plates 19 and 41 are secured together by screws extending in the plates (not shown). The plates are designed to thick enough.

The parts 8, 14, 16, 18, 32, 33 form a total of a movable part 21 of the clamping assembly 4 and in particular include the movable jaw 8, which is composed of the parts 14, 16, 18, 32, 33. On the other hand, the parts 7, 13, 15, 17, 19, and 41 form a part of the clamping arrangement 4, referred to here as a fixed, immovable or "main part" 20. The terms "movable part" and "fixed part" or "main part" reminds in particular of the blueprint of a vise, wherein in the latter the jaws are generally moved by means of a threaded spindle. The use of a threaded spindle is also in the clamping arrangement 4 of the device of the invention possible and provided.

It should also be noted that in the embodiment shown, the movable part 21 is blocked or fixed by means of screws on the fixed part 20. Within the scope of the solution on which the invention is based also fall other forms of attachment. For example, the movable part 21 may also be blocked or released by means of manually operable means. For example, it would be possible to use butterfly or thumbscrews, or quick releases (for example with an eccentric), or generally screws or spindles comprising a manually operable head, such as a knob or lever, to name a few common examples.

As can be seen in FIG. 1, a joint arrangement 6 is attached to the main part 20, in particular to the carrier plate 41. The hinge assembly is attached to the side of the support plate 41, which is here arbitrarily referred to as the back, and which is opposite to the side where the jaws 7, 8 are located. The joint assembly comprises a joint carrier 24, the actual joint 25 and a locking device 11, 12, which in the context of the invention also referred to as a locking assembly or locking mechanism and can be considered as such.

The joint carrier 24 fulfills the purpose of spacing the actual joint 25 from the clamping arrangement 4 by a selected or desired stretched distance. This makes it possible that the movement of the attachment surface 5 made possible by the joint 25, relative to the clamping arrangement 4, is not hindered by the clamping arrangement 4, in particular by its main part 20 and / or its carrier plate 41.

The actual articulated connection 25 comprises a first articulated part 26, which is firmly connected (via the articulated carrier) to the main part 20 of the clamping arrangement 4, and a second articulated part 27, which is firmly connected to the attachment surface 5 (FIG. 3). The second joint part 27 is connected to the first joint part 26, but can move in the context of a given by the joint 25 freedom of movement. In other words, the two joint parts are attached to each other, but still mutually movable, as is common in joints. In the context of the present invention, the skilled person can choose a suitable joint, the joint can allow one, two or three degrees of freedom. The joint may be, for example, a thrust joint, a universal joint, a pivot joint, a screw joint, a rotary thrust joint, a plate joint, a floating joint, a bearing, and / or a ball joint, or a joint comprising a combination of two or more of the mentioned joint types is.

Preferably, in the context of the clamping device, a device according to the invention comprises only a single or more than two (at least three) structures to be interpreted as hinge devices, e.g. only one swivel or three or more swivel joints. The invention preferably differs from embodiments in which two jaws are connected by means of a rod, with which they are independently rotatably connected, without any further hinge would be present.

According to the invention, the joint arrangement allows the setting of the attachment surface 5, regardless of the position or the state (attached to the workpiece or not) of the entire clamping device, preferably independently of both jaws. In the embodiment shown in the drawings, a hinge, in particular a hinge type is used. The second joint part 27 comprises a cylindrical body 45 (FIG. 5), which is embedded in a tubular, hollow-cylindrical first joint part 26 (FIGS. 4A, 4B) and rotatably mounted therein. The first joint part 26 thus comprises a hollow interior, in that the cylindrical body 45 of the second joint part can rotate. In this case, apart from a small clearance, the inner diameter of the hollow cylindrical inner space corresponds to the outer diameter of the cylindrical body, so that a stable rotational movement can be performed. The first hinge part 26 may be considered as a tube piece with cutouts, wherein the second hinge part 27 is connected by these cutouts with the Ansetzfläche 5, and the cutouts further extend so that the first hinge part 26 does not hinder the rotation of the Ansetzfläche 5.

In Fig. 4 A and 4 B, the first joint part 26 is shown with the joint carrier 24 as a detached partial element, so that its structure is better understood. The first hinge part 26 comprises an upper and a lower tube part 28, 29, and therebetween a recess 35 for the support element 34 which connects the second hinge part 27 with the attachment surface 5 (FIG. 5). Another recess 36 is provided in the upper tube part 28. The recess 36 allows the second hinge part 27 to be pushed into the first hinge part 26 and thus placed there.

In Fig. 4A, two nuts 11, 12 are also visible, which are at two different locations on the lower tube portion 28, and precisely above each hole in selbigem tube part (not shown), attached, in particular welded. Through these holes, it is possible to introduce two screws through the internal thread of the nuts 11, 12, respectively, to the cylindrical body of the second joint part 27 (not visible) and to block it by tightening these screws. The two nuts 11, 12 and the holes located below are mounted in different vertical height on the lower tube part 29 so that the introduced therein screws can act by tightening on different areas of the cylindrical body.

Fig. 4B shows the hinge part 26 from the side, which in the fully assembled (functional) state of the device 1, the support plate 41 (not shown, see Fig. 1-3) facing and in contact with it. Here, the region of the joint carrier 24 can be seen, which is fastened in the functional state to the main part 20, more precisely to the carrier plate 41 of the clamping arrangement 4. On the in Fig. 4 B facing forward, flat side of the hinge carrier 24, two pins 37, 38 are provided, which in at corresponding, matching point in the support plate 41 (Fig. 1-3) introduced bores (43, 44: Fig 6). In addition, here is a hole 39 with an internal thread (not visible). By means of a screw (42: FIG. 2) passing through the carrier plate 41 (FIGS. 1-3), the first joint part 26, in particular via the joint carrier 41, can be fastened to the clamping arrangement 4.

Fig. 5 shows the second disassembled joint part 27. The cylindrical body 45 is visible and the supporting element 34 firmly connected to the latter, to which the attachment surface 5 (Fig. 1-3) can be attached. The support member 34 has a vertically extending in the drawing, substantially elongated member which is offset with bores 46, 47, 48, and a narrower or shorter portion 55, on which the support member 34 attached to the cylindrical body 45, for example, welded is. Also visible are two grooves 51, 52 on the body 45. In these grooves grip the ends of the screws (not shown) passing through the nuts 11, 12 (Figs. 1, 2, 4A, 4B) and through the wall of the pipe section 29 of the first joint part 26 (Figs. 4A, 4B). By tightening these screws whose ends are pressed firmly into the grooves 51 and 52, and thus the first joint part 26 with respect to the second joint part 27 is blocked or locked. As a result, the nuts 11, 12, the screws (not shown) and possibly the grooves 51, 52 form a locking mechanism, with which the given by the joint freedom of movement of the Ansetzfläche 5 prevented, that is said attachment surface can be completely blocked. This makes it possible that a screw clamp can be stably supported on the attachment surface 5, as will be described later.

The hinge parts 26 and 27 together form a rotary joint whose axis of rotation is formed by the cylindrical body 45, that is, to this body is coaxial.

Fig. 6 shows substantially the disassembled main part 20 of the clamping arrangement 4, for a simplified understanding of the structure of the inventive device. For the main part 20 in principle also includes the fixed jaw 7, consisting of the jaw plate 13 and the pad 17, the surface of which forms the workpiece-engaging surface (Fig. 1-3). However, the fixed jaw 7 has been removed in FIG. 6, however, the heads of the screws 56, 57 are seen in the plate 15, with which the jaw plate 13 and thus the fixed or immovable jaw 7 can be fixed to the plate 15 , In addition, Fig. 6 shows the heads of the screws 32 and 33, which extend through the gaps 30, respectively 31, in the support plate 41 and serve to block the small plate 16 and thus the movable jaw 8 in the desired position (Fig -3). The screws 32 and 33 thus belong in principle to the moving part of the clamping arrangement 4. In addition to already described with reference to FIG. 1 structural elements in Fig. 6, two cylindrical bores 43, 44 can be seen, in which the pin described in Fig. 4 B. 37, 38 fit, for fastening the first joint part 26 of the joint assembly 6. This attachment is accomplished further by means of the screw 42, which can also be seen in Fig. 2, and which can be screwed into the threaded hole 39.

FIG. 7 shows the clamping tool attachment surface 5 as a dismantled structural element for a simplified understanding. The actual attachment surface 5 for the clamping tool is formed by the visible in Fig. 7 surface of a substantially rectangular plate 67. It should be noted that the term "workpiece attachment surface 5" is for simplicity half is used as a term, which refers on the one hand to the actual Ansetzfläche as such, on the other hand, on structural parts that form the surface. Structurally, the attachment surface 5 thus comprises at least the plate 67, but preferably the entire arrangement shown in Fig. 7, possibly also the screws or other means (not shown) with which the plate 67 can be attached to the hinge assembly 6. This designation is considered to be convenient because the most essential element is the surface formed by the plate 67, and the function of this arrangement is to provide a surface on which a clamping tool can be attached or attached. Structurally, the "workpiece attachment surface 5" may therefore be referred to as "workpiece attachment surface order 5", and these two terms will be considered as synonyms for the present description, unless it is understood from the context that specific to FIG Surface is referred to as such.

The plate 67 is shown somewhat thinner in the drawings than other plates described above, but nevertheless is sufficiently resistant to withstand pressure generated by a clamping tool. The plate 67 includes countersunk bores (tapered countersinks or countersinks for countersunk screws), as already explained with respect to other threaded connections. The screws (Figure 1) pass through the holes 63-65 and are threaded in the assembled device 1 into the tapped holes 46-48 (Figure 5). The attachment surface 5 is bounded by lateral, elongated edge heights 61, 62. These edge elements 61, 62 extend along two opposite sides of the rectangular plate 67 and prevent slipping of an attached clamping tool. The edge element 62 is also formed in the form of a corner profile and thus encloses an elongated cavity with two right interior angles. Attached on one side along the plate 67, it forms a longitudinal recess or groove 66, in which the pressure plate of a clamping tool can be at least partially inserted and thus anchored or blocked (FIG. 10). As a result, the risk of slippage of the clamping tool from the Ansetzfläche 5 is further reduced.

Figures 8A and 8B show the structure of the second or movable jaw 8 as a disassembled structural element. The movable jaw 8 allows, together with the fixed jaw 7, to fix the piecing device to a workpiece by pinching the latter. The reference signs 81.1 and 81.2 in Fig. 8B show in the Lot to Drawing plane extending internally threaded holes (shown in cross section), in which the screws 32, 33 extend and thus the small plate 16 is adjustably secured to the support plate 41 (Fig. 1, 6). The small plate 16 of the movable jaw 8 also has one or more in the figures 8A and 8B vertically extending internal threaded holes, in each case a corresponding number of screws 68.1 - 68.3 are performed. These screws have an outer hexagonal profile 83 at their head end shown below, so that they can be rotated by means of Allen key. The head end opposite end of each screw abuts the underside of the jaw plate 14, in particular in a small recess 82.1 - 82.3, which is provided in the jaw plate 14 for each screw. Furthermore, one or more pins 80.1 and 80.2 are firmly sunk in the jaw plate 14. These pins pass through holes in the small plate 16 and thus serve as a guide in the relative movement between the plates 14 and 16. The holes in the plate 16 allow enough clearance to slide the plate 16 perpendicular to the pins allows. By turning the screws 68.1-68.3, the position of the jaw plate 14 can be adjusted, in particular in the orientation shown in FIGS. 8A and 8B, moved vertically. Finally, the jaw plate 14 can be moved substantially parallel to the plate 16 (and thus in the result parallel to the fixed jaw 7, Fig. 1-3). At the same time, pressure can be exerted on the jaw plate 14 by turning the screws in the appropriate direction. This pressure is passed to the workpiece application surface during attachment to a workpiece. As one skilled in the art will appreciate, the functional principle by which the clamping voltage is generated corresponds to that of a vise and / or a screw clamp: A piston with an external thread (here the metric screws 68.1-68.3) is in an internal thread of a fixed part (here the small plate 16), so that by turning the piston, the latter translationally, that is, moves along its axis. Since a pressure plate is attached to the end of the piston (here the jaw plate 14), a pressure, here also called clamping stress (in conjunction with the fixed clamping jaw 7, FIGS. 1-3), can be generated. As the skilled artisan recognizes, the movable jaw 8 as a whole is doubly movable and adjustable: First, by loosening the screws 32 and 33, the entire movable jaw 8 loosened and displaced parallel to the fixed jaw 7, and locked by tightening the screws 32 and 33 again become. Secondly, by the screws 68.1 - 68.3, the jaw plate 14 is moved in the same axis / direction and also a clamping pressure can be generated.

FIG. 9 shows the device 1 'according to the invention to which an extension part 49 has been attached in order to widen the clamping span covered by the clamping arrangement 4. As can be seen in Figure 9, the edge plate 19 (Figures 1-3) has been removed. Instead of the edge plate 19 was substantially another main part 20 'is mounted, which is substantially identical to the main part 20, but is arranged mirror-symmetrically to the latter. The stroke 'is used to refer to elements or arrangements of the extension member 49 that correspond to previously described structures or arrangements. Thus, apart from the edge plate 19 and some screws, the extension part 49 comprises most of the elements shown in FIG.

As can be seen in FIG. 9, the extension part 49 in particular comprises a carrier plate 41 '. Further, a plate 15 'can be seen, which is mounted analogously to the plate 15 and the support plate 41 on the plate 41', in particular in the form of a rectangular corner joint. The plate 15 'is actually not absolutely necessary, since it serves in the case of the plate 15 to attach a fixed jaw 7. Such is not needed in the extension part 49, and thus the plate 15 'could be omitted. The support plate 41 'of the extension part is fixed to the plate 41 of the main part 20 after removing the edge plate 19. In the projections or edges 22 and 23 of the support plate 41 are bores (not shown), which continue in the corresponding edges 22 'and 23' as threaded holes. The reference numeral 24 indicates the head of a screw which completely passes through the bore in the projection 23 and can be anchored in a threaded bore in projection 23 '. An analogous mounting is provided on the opposite side of the plates 41 and 41 ', on the projections 22 and 22' (not shown). From what has been said, the holes (not shown) in the projections 22 'and 23' need not necessarily be identical to the holes (not shown) in the projections 22 and 23, but at least two threaded holes must be present, as the case may be from where the screws are attached. It is also clear from what has been said that the edge plate 19 shown in FIGS. 1-3 can also be fastened and / or removed via screws in the same bores in the projections 22 and 23 on the carrier plate 41. The mirroring of the plate 41 'to the plate 41 causes the gaps 30 and 31 to be continuously extended by the gaps 30' and 31 '. As a result, the movable jaw 8 in FIG. 9 can be moved further downwards, which means that the jaw 8 can be further removed from the fixed jaw 7 than was the case in the device generated in FIGS. 1-3. Thus, a maximum possible clamping span of the clamping arrangement 4 has been extended, in particular substantially doubled.

In order to determine objectively a given clamping span, it is assumed that the workpiece abutment surfaces 17, 18 remain parallel when moving or blocking the movable clamping jaw 8, so that the maximum clamping span is limited by the maximum solder distance between the workpiece abutment surfaces (17, 18 ) of the jaws (7, 8) is given, that is by a straight line which is perpendicular to the parallel planes in which the contact surfaces 17, 18 are located. The distance between the jaws is then dimensioned on the axis of this line.

In the device shown in Fig. 9, the extension member 49 further comprises, analogous to the device 1, a hinge assembly 6 'and a Ansetzfläche 5'. Since the assemblies 5 'and 6' are not needed to increase the clamping span of the clamping device 4 ', they can be used optionally or omitted. It may be mentioned that the Ansetzflächen 5 and 5 'together form a twice as large Ansetzfläche, and thus also better stabilized clamping tools with large-scale printing plates, or their preparation can be made possible. In this sense, the use of the arrangements 5 'and 6' is advantageous. 10 shows the connection of two workpieces 2, 3 by means of an embodiment of the clamping device according to the invention, which comprises a first and a second attachment devices 1, respectively 10, of the type shown in FIGS. 1-3, as well as in the form of a screw clamp 70, realized clamping tool, which is attached to the Ansetzvorrichtungen 1, 10 and thus connects the workpieces.

The connection of the workpieces 2, 3 shown in FIG. 10 is a typical Gehrverbindung two workpieces, wherein the angle a, which include the workpieces, 110 ° and therefore can not be referred to as a standard angle, and thus the versatility and variability of device according to the invention. The Miter generally corresponds to the bisector of the included angle, here 55 °. The miter shown is a "true miter" since both workpieces 2, 3 are cut at the same 35 ° (90 ° (a / 2)) angle and also have the same diameter. However, the invention also applies so-called "false" miter joints, and is generally not limited to mitred joints, as shown in the following figures. At the connection surface 9, the two workpieces 2, 3 are in direct contact with each other. According to the invention, a pressure or a tension is generated by the clamping tool in such a way that the two workpieces are pressed together on the connecting surface 9, that is the clamping force preferably acts perpendicular to the flat surface of the connecting surface 9.

It should be noted, however, that the bonding surface 9 of the workpieces need not be a flat surface. For example, in the field of wood connection, there are all possible patterns of connections that can be made with the inventive device. The following examples are given for illustration purposes: butt joints, such as a straight or a blunt shock, an oblique impact, a mitred joint, the stiffening, such as a double shank, a cross pin, or a connection using dowels or inserted connection, such as Screws or dovetails, to name a few examples. The invention can also be used, for example, for the following types of connection: longitudinal blade connections (straight blade, hook blade, dovetailed blade), connections without blade such as offset (forehead offset, breast offset, heel offset, double offset, offset with overlap, wall offset, etc.), Klauung, gratification, leafing and Kämmigung, for example, the Eckblattung (simple corner sheet, corner sheet on Gährung, sloping corner sheet, printing sheet (French corner sheet), leafing on the block, overlap (T-shaped overlay, ordinary flush overlaying, uneven overlap, the layering (when one piece of wood runs diagonally against the other), the combing (simple comb, multiple comb, over-combed sheet, tattered comb, white tail, cross comb), the tap, for example, the simple pin, pin straight chest, pin with oblique chest , oblique pin, jigs, slotted pin, the bung, for example For example, the wedge, the square bung, the trapezoidal bung, the folded bung. Planks can be connected at their ends by zincing, for example by means of finger prongs, open zinc plating, half-concealed zinc plating, Miter tine, finger pin (as T-connection), finger jointing. The present invention can also be applied, for example, to connections with screws, nails and / or by means of a third wood, for example dowels, wood nails, grooves, springs.

In many of the above cases, the interface (Fig. 10: 9) between the two workpieces to be joined is not flat, or not completely flat. However, in these cases, a flat joint surface can be derived. For this purpose, first a connection angle α of the two workpieces is determined to one another, wherein, if the compound includes a continuously changing angle, the angle (a) is selected, which is located at the location where the compressive stress is to be generated when the inventive Device is attached. In Fig. 9, this angle is 110 °. In the case of flat parts, the smallest possible angle to be determined is measured. Thereafter, a plane A (in section: a straight line) is placed so that they from one (in most cases, a straight line) inner edge B of the compound, starting at an angle of a / 2 to one of the two, preferably both workpieces and along the edge B runs. This plane A can, where it comes into contact with the workpieces, be considered as a connecting surface. According to the invention, a pressure or a tension is generated by the clamping tool in the result in such a way that the two workpieces are optimally compressed. That is, the clamping force preferably acts such that the static equilibrium of the workpieces in the desired connection position of the workpieces to each other is maximally stabilized.

In other words, the clamping force affects the static equilibrium position of the two workpieces such that the desired connection position of the workpieces to each other to the most stable equilibrium position. It should be noted that the hinge assembly 6 allows a substantially continuous, possibly by ribbing or perforation divided into small units, adjustment of the orientation or the angle of the Ansetzfläche 5. By using a hinge, the attachment surface 5 can be rotated, for example, and an optimal orientation of the same can be selected before the attachment surface by activating the Locking mechanism is blocked. According to the invention s hinge arrangement allows a substantially continuous adjustment of the attachment surface within an angular range, the 360 ° or a few, 270 ° or less, in particular about 180 ° or less, 150 °, 130 °, 110 °, 90 °, 80 ° , 70 °, 60 °, 50 °, 45 ° 40 °, 35 °, 30 ° or less. On the other hand, the device allows the substantially continuous adjustment of the attachment surface within an angular range of at least 30 °, 40 °, 45 °, 50 °, preferably at least 60 °, 70 °, 90 °, 110 °, 130 °, 150 °, 170 ° includes. These angular ranges are made possible according to the invention, for example, by rotating the attachment surface about a hinge.

The workpieces 2, 3 in Fig. 10 are elongated, profile-like workpieces, such as bars or beams, but could also represent flat and wide workpieces, such as boards. The two attachment devices 1, 10 are attached by means of their respective clamping arrangement 4, 40 on the workpieces 2, respectively 3. The hinge assemblies 6, 60 are blocked by means of the above-described locking device 11, 12 (not designated for the second device 10). Thus, the Ansetzflächen 5, 50 are locked.

The clamp 70 is conventional in nature and includes a fixed bracket 72 to which a fixed pressure plate 71 is fixedly mounted (or may be cast in one part with the fixed bracket) and which is substantially perpendicularly (generally welded, or generally welded) to a rail 76 also formed in one piece) is. The clamp 70 further comprises a sliding bracket 74, at one end of an internal thread is attached. A spindle 75 is fixedly connected at one end with a handle portion 69 and at the other end with a sliding pressure plate 73, and guided by the internal thread of the sliding bracket. The sliding bracket 74 includes at its other end an opening through which the rail 76 is guided. In the opening is a pin that can engage in a rail ribbing on the rail, thereby slipping when attaching and tightening (tightening) of the clamp is prevented.

As can be seen in Fig. 10, the fixed pressure plate 71 rests on the arrested attachment surface 50 of the attachment device 10, and the sliding pressure plate 73 on the locked attachment surface 5 of the attachment device 1. The sliding bracket 74 is locked on the rail, that is blocked, and by turning the grip part 69 can now from the Gleitdruckplatte 73 from a Pressure on the Ansetzfläche 5 are exercised. The pressure is immediately returned via the fixed pressure plate 72, which acts in the opposite direction to the Ansetzfläche 50, according to the actio-reaction principle, that is exerted in the opposite direction, thereby the workpieces 2, 3, clamped, the clamping axis parallel to Profile rail 76, as a direct connection between the sliding pressure plate 73 and the fixed pressure plate 72 extends and acts along this axis. In conventional clamps the clamping axis is usually coaxial with the handle part and / or attached to the handle spindle. In the plan view of Fig. 10, this clamping axis is exactly superimposed by the rail, that is, can not be drawn directly. However, the clamping axis extends transversely through the connecting surface 9, that is at right angles to the plane in which the connecting surface 9 is located. Thus, a voltage or pressure is generated, which optimally compresses the workpieces 2, 3. By turning the handle portion 69 in the desired direction, the pressure can be arbitrarily increased or decreased. Figures 11 and 12 show further connections of workpieces which can be temporarily or temporarily stabilized by means of the clamping device of the invention, for example for gluing the workpieces.

In Fig. 11, the two workpieces are posts 53 of a stair railing to which a handrail beam 54 is attached. In this type of connection, a single attachment device 1 is sufficient, since the one pressure plate of the clamping tool 70 can be attached flat to the surface of the post 53. In Fig. 11, the clamping axis S of the clamping tool is located. Also indicated is the clamping axis K, which indicates the axis / orientation of the clamping force exerted by the clamping device 4. The device 1 is held by forces directed along or parallel to this axis K on the workpiece (here the handrail bar 54).

In Fig. 12, a board 58, which forms the tread of a staircase, mounted on a Wangenträger 59. Again, only one attachment device 1 is needed.

As one skilled in the art will appreciate, the attachment surface 5 lies in a plane which is always perpendicular to at least one (normally both) of the two planes in which the two workpiece abutment surfaces 17, 18 are located, independent of the set position of the attachment surface 5. Furthermore, the clamping axis S is preferably always parallel to at least one (usually both) of the two planes in which the two workpiece abutment surfaces 17, 18 are located. In particular, the clamping axis is parallel to the plane in which the contact surface of the fixed jaw is located. In particular, the two workpiece abutment surfaces do not run in parallel planes when the surfaces of the workpiece on which the clamping jaws are mounted do not run parallel.

As the term "clamping tool attachment surface" indicates, the attachment surface 5 of the attachment device according to the invention is designed as a surface and / or has as a functionally and structurally essential component a flat, flat surface on which a part of the clamping tool, in particular the pressure plate of a clamping jaw - pleasant and practical - is set or scheduled. An advantage of the invention lies in the fact that it can be used in combination with existing in each workshop basic tools (clamp). An advantage lies in the fact that for fixing of workpieces a single clamp is sufficient, since the device itself can be attached directly to the workpiece. In other words, the attachment device is designed as a single, cohesive device.

A further advantage of the device according to the invention is that the entire attachment device 1 can remain attached to the workpiece for adjusting the angle of the attachment surface 5 or can be fixed previously and independently on the workpiece.

FIGS. 13-15 show another embodiment of a hinge assembly, but differing from the above-described hinge assembly only in that the second hinge member (see FIG. 27) is formed differently and is referred to herein as 27 '. The difference is that the cylindrical body (45 in FIG. 5) is now formed of two coaxial parts, 45.1 and 45.2, which are in contact with each other by means of serrations 78, and 79. A metric screw 77 accessible from above passes through the one body part 45.1 and engages in an internal thread in the second body part 45.2. By loosening the screw 77, one part 45.1 can be separated from the second part in the axial direction (vertical arrow in FIG. 13), whereby the toothing is released, and the part 45.1 is rotatable relative to the second one 45.2 (curved arrows in FIG ). A further difference with respect to FIG. 5 is that no grooves 51, 52 but hollow conical bores 51 ', 52' (FIG. 15) have been drilled into the second part 45.2. As understood by those skilled in the art, the second cylindrical portion 45.2 is in the first hinge portion 26 (Figures 4A and 4B) are fixed immovably by tightening the screws passing through the threads 11 and 12 (Figures 4A and 4B) and into the bores 51 ', 52'. The second cylindrical part could also be integrally formed or welded with the first joint part 26, then the tapered holes 51 'and 52' would no longer be necessary. In general, it would be more appropriate in this embodiment variant to associate the second cylindrical body part 45.2 with the first (immovable) joint part 26.

The lockable setting of Ansetzfläche 5 happens in this embodiment by loosening the screw 77 followed by rotating the first part 45.1, which is now possible because of the separation of the teeth 78, 79. When the rotation of the first part 45.1 has taken place so far that the second joint part 27 'and thus in particular the attachment surface 5 is in the desired position, the screw 77 is tightened and brought the spur gear teeth for mutual engagement. Thus, the second joint part 27 'is locked and blocked the Ansetzfläche 5 in the desired position.

According to this embodiment, the locking device of the structural parts 77, 78, 79, in the broader sense may also be formed by the parts 51 ', 52', 11 and 12.

Consequently, in this embodiment, the attachment surface 5 can not be adjusted completely steplessly, but substantially steplessly and / or continuously, in particular at small distances, for example by means of a detent. The number or scale of the adjustment positions can be selected by a person skilled in the art, in particular by the size of the teeth of a toothed coupling 78, 79. In the embodiment shown in FIGS. 13-15, the spur toothing 72 has serrations, so that the attachment surface with angular intervals of 5 ° can be locked.

According to a preferred embodiment, the attachment surface can be locked in regular, discontinuous angular intervals of 0.05 ° to 15 °, preferably 0.5 ° to 10 °, 1 ° to 7 °, and in particular 2 ° to 6 °.

The embodiment shown in FIGS. 13-15 permits a faster adjustment of the angular position of the attachment surface 5 than that shown in FIGS. 4A-5, since in the former only one screw (77) has to be loosened and tightened again. According to one embodiment variant, the clamping arrangement in the attachment device can be designed such that it allows a non-parallel, preferably adjustable arrangement of the two clamping jaws. It is particularly possible that the movable jaw is designed so that it can also be tilted (laterally) and not only parallel along the clamping axis, so that the bearing surface of the fixed jaw lies in a plane that is not parallel to the plane in which is the fixed jaw. Such a clamping arrangement is disclosed for example in DE 37 44 499 AI and referred to there as a clamping device. As a result, the attachment device can be attached to non-cuboid workpieces, in particular to workpieces, such as a wedge-shaped workpiece, which have surfaces that run obliquely to each other.

The attachment device according to the invention can be freely attached to a workpiece. That is, the device is preferably not placed on a base, for example on the floor or on a table. The device therefore has no base, foot or other Aufstellstruktur. The device is therefore preferably relatively light and / or relatively small in size. The device is preferably less than 15 kg, less than 10 kg, less than 7.5 kg, less than 5 kg and less than 4 kg or less than 3 kg, preferably even 2 kg or less. In its longest dimension, the device is preferably less than 2 m, less than 1 m, less than 70 cm, less than 50 cm, less than 40 cm and less than 30 cm long. These dimensions and weights are especially for the device without extension.

Reference numerals used in the figures:

1 attachment device 9 connection surface

2 first workpiece 10 attachment device 2

3 second workpiece 11 1st locking device

4 Clamping arrangement 12 2nd locking device

5 attachment surface 13 fixed jaw plate

6 joint assembly 14 movable jaw plate

7 fixed jaw 15 plate

8 movable jaw 16 plate 17 fixed workpiece contact surface 47 bore

18 movable workpiece contact surface 48 bore

19 edge plate 49 extension part 0 main part 50 attachment surface 2

1 moving part 51 groove

22 Edge / projection 5 Γ Hollow taper hole

23 edge / ledge 52 groove

24 joint carrier 52 'hollow cone bore

25 joint 53 posts

26 first joint part 54 handrail bar

27 second hinge part 55 shorter connecting part

27 'second hinge part another 56 screw

Type 57 screw

28 upper tube part 58 tread

29 lower tube part 59 Wang carrier

30 Blocking means 60 Jointing arrangement 2

31 blocking means 61 edge element

32 screw 62 edge element

33 screw 63 bore

34 supporting element 64 bore

35 recess 65 hole

36 recess 66 screw

37 peg 67 thin plate

38 peg 68.1 screw

39 bore 68.2 screw

40 Clamping arrangement 2 68.3 Screw

41 support plate 69 handle part

42 screw 70 screw clamp

43 bore 71 fixed pressure plate

44 Bore 72 Fixed bracket

45 cylindrical body 73 movable pressure plate

45.1 cyl. Body first part 74 sliding bar

45.2 cyl. Body second part 75 spindle

46 Bore 76 Profile rail 77 Screw 81.2 Female thread

78 Spurious 82.1 Deepening

79 Forehead teeth 82.2 recess

80.1 pin 82.3 recess

80.2 pen

81.1 internally threaded hole

Claims

claims

1. Clamping device (1) for clamping tools, which serves to clamp workpieces (2, 3), for example for miter, comprising a clamping arrangement (4) and a clamping tool attachment surface (5), wherein the clamping arrangement (4) comprises two clamping jaws (7, 8) by means of which the attachment device (1) can be freely attached to a workpiece by clamping between the clamping jaws, characterized in that the device further comprises a joint arrangement (6) comprising the clamping arrangement (4) and the attachment surface (5). movable and lockable connects with each other.

2. An attachment device according to claim (1), characterized in that the hinge assembly (6) is designed such that it allows a substantially continuous, continuous positioning and locking of the attachment surface (5) with respect to the clamping arrangement (4).

An attachment device according to any one of the preceding claims, characterized in that the articulation arrangement (6) comprises a separate locking device (11, 12) designed such that the attachment surface (5) can move in relation to the clamping arrangement (4) can be locked in any position, and / or is independently movable and / or can be locked, whether the clamping arrangement (4) is attached to a workpiece or not.

4. Anchoring device according to any one of the preceding claims, characterized in that the hinge assembly (6) in the unlocked state a

Pivoting movement of the attachment surface (5) with respect to the clamping arrangement (4) allows.

5. Anchoring device according to any one of the preceding claims, characterized in that the hinge assembly (6) in the unlocked state allows a pivotal movement of the Ansetzfläche (5), and in that this pivotal movement allows a rotation angle of 45 ° or more, preferably at least 180 ° or includes.

6. Anchoring device according to any one of the preceding claims, characterized in that each of the two jaws (7, 8) each having a planar workpiece abutment surface (17, 18), wherein the hinge assembly (6) the attachment surface (5) with the Clamping arrangement (4) connects that the attachment surface (5) can be positioned so that it lies in a plane which is perpendicular to at least one of the two planes in which the two workpiece abutment surfaces (17) lie.

An attachment device according to any one of the preceding claims, characterized in that the clamping arrangement (4) comprises a main part (20) to which a fixed clamping jaw (7) is fixedly attached, and a movable part (21) which is adjustable relative to the main part. with a movable jaw (8), wherein the attachment device (1) can be attached to a workpiece by being clamped between the jaws (7, 8) and / or the movable part (21) is blocked at the main part (20) ,

8. An attachment device according to any one of the preceding claims, characterized in that the entire clamping arrangement (4) via the hinge assembly (6) with the Ansetzfläche (5) is connected, and / or in that the clamping arrangement (4) has a main part (20) in that the joint arrangement (6) and a movable part (21) are attached at a separate location on the main part (20).

9. An attachment device according to any one of the preceding claims, characterized in that a maximum possible clamping span of the clamping arrangement (4), which is given by the maximum Lotdistanz between the workpiece-abutment surfaces (17, 18) of the clamping jaws (7, 8) fixed attachment of a separate extension part (49) can be extended.

10. Clamping device for clamping of workpieces (2, 3), for example for miter, which comprises a clamping tool, for example a clamping clamp, and at least one and preferably two attachment device according to claim 1.