WO2013190558A1 - Adjustable clamp - Google Patents

Abstract

A system for moving and locking work objects along guide tracks, for example, a workbench, optionally with a self-locking mechanism. For example, there is provided a clamping system comprising a clamping device including a base having a position locking mechanism, the base configured to be accommodated inside a guide track in a workbench; and a workbench including at least one guide track; wherein the first clamping device is configured to move forward and backward along the guide track.

Description

ADJUSTABLE CLAMP

RELATED APPLICATIONS

This is a PCT application which claims the benefit of priority of U.S. Provisional Patent Application No. 61/662,457 filed June 21, 2012, the contents of which are incorporated herein by reference in their entirety.

FIELD AND BACKGROUND OF THE INVENTION

The present invention, in some embodiments thereof, relates to clamping systems and, more particularly, but not exclusively, to a workbench integrating an adjustable clamping instrument.

Clamping instruments are generally used to hold an object stationary while being mechanically manipulated by an operator. One such type of clamping instrument is a vise, which typically includes two parallel jaws, one stationary and the other movable, which are moved towards one another for securing the object between the jaws.

Some vises have two movable jaws for allowing the jaws to be independently moved towards one another. Others include means for allowing the jaws to be positioned at an angle relative to a longitudinal axis of the vise. An example of such a vise is described in U.S. Patent No. 4,576,529 to Forrer which describes "a multipurpose clamping device for a modular tool comprise first and second clamping jaw members each of which has a front face with an aligned modular tool clamping receiving opening. The jaw members include base portions with side rails extending therethrough at spaced lateral locations providing means facilitating the movement of the jaw members toward and away from each other without canting. The clamping device is associated with each opening to clamp the tool in position. The clamping device may be used as a vise by inserting a vise clamping jaw into each opening of each member and in such instance the spindle is advantageously threaded to each member to permit members to move upon driving of a threaded spindle member. The device may also be used for example as a support for a hand drill which may have its forwarded end inserted in the opening and clamped therein so as to line a tool receiving chuck therein which may be rotated and align it with a tailstock center carried by the other jaw member." Another example is described in U.S. Patent No. 2,447,685 to Chester which describes "a vise of the class described comprising a base including a bar, wings projecting laterally from the center of the bar at each side thereof, longitudinal extension on the wings spaced from the sides of the bar, said bar having longitudinal grooves at each side and at each end and transverse grooves communicating with said end grooves, a slide bar mounted for longitudinal movement on each end of the base bar, turned flanges on the slide bars slidably received in said longitudinal side grooves, a threaded guide carried at each end of the base bar in said longitudinal end grooves, each threaded guide being secured by a key positioned in said transverse grooves, a jack screw threaded in each guide and attached to an adjacent slide bar, means for manipulating the screws, and a vise jaw at the inner end of each sliding bar."

SUMMARY OF THE INVENTION

An aspect of an embodiment of the present invention provides for a clamping system comprising a first clamping device including a base having a position locking mechanism, the base configured to be accommodated, at least in part inside a guide track in a workbench; and a workbench including at least one guide track; wherein the first clamping device is configured to move forward and backward along the guide track.

In some exemplary embodiments, the clamping system further comprises a second clamping device including a base having a position locking mechanism, the base configured to be accommodated inside a guide track in a workbench, and configured to move in a forward and backward direction along a same guide track as the first clamping device.

In some exemplary embodiments, the position locking mechanism includes at least one set of interlocking teeth, and wherein the at least one guide track includes teeth along at least a portion of its length for mating with the interlocking teeth in the position locking mechanism.

In some exemplary embodiments the first and second clamping device are adapted to move towards one another forming a vise.

In some exemplary embodiments the at least one set of interlocking teeth includes two parallel rows of interlocking teeth. In some exemplary embodiments the teeth in a first row of the two parallel rows are angled in a forward direction and the teeth in a second row are angled in a backward direction.

In some exemplary embodiments the at least one set of interlocking teeth comprises two sets of interlocking teeth facing opposite directions to mate with teeth on an inner surface of the at least one guide track.

In some exemplary embodiments both of the sets of interlocking teeth are disengagable from the teeth using a single control.

In some exemplary embodiments wherein the control is configured to be operated by pressure from a human finger and is spring-loaded to cause the interlocking teeth and the teeth to mate, when released.

In some exemplary embodiments the at least one guide track includes at least two guide tracks.

In some exemplary embodiments the at least two guide tracks are perpendicular to one another.

In some exemplary embodiments the at least two guide tracks are parallel to one another.

In some exemplary embodiments the clamping device includes a jaw for applying a pressure to an object.

In some exemplary embodiments the clamping device includes a swivel mechanism for adjusting an angle of the jaw relative to a longitudinal axis of the at least one guide track.

In some exemplary embodiments the swivel mechanism is releasable from a locking position by pressure from a human finger and is spring-loaded to return to such a locking position.

In some exemplary embodiments the swivel mechanism is configured to freely rotate within a range of motion thereof.

In some exemplary embodiments the jaw comprises a replaceable pressure plate.

In some exemplary embodiments the clamping device includes a pressure adjusting mechanism for adjusting the pressure applied by the jaw.

In some exemplary embodiments the pressure adjusting mechanism includes a handle having an eccentric axis of rotation. An aspect of an embodiment of the present invention provides for a system for locking a position of a worktool or base thereof on a workbench comprising at least one set of interlocking teeth on a section of the worktool or a base thereof configured to be accommodated inside a guide track in a workbench; and at least one guide track on the workbench having teeth along at least a portion of a length of the guide track for mating with the interlocking teeth on the worktool or base thereof.

In some exemplary embodiments the at least one set of interlocking teeth includes at least two parallel rows of interlocking teeth.

In some exemplary embodiments the teeth in a first row of the two parallel rows are angled in a forward direction and the teeth in a second row are angled in a backward direction.

In some exemplary embodiments the teeth arrangement reduces a minimal pitch of the system by at least 50% when compared to a single teeth row system.

In some exemplary embodiments the guide rail teeth and the interlocking teeth have a substantially right triangle cross-sectional shape.

In some exemplary embodiments the teeth of the guide track are arranged in two facing sets of teeth, on opposite sides of a longitudinal axis of the guide track.

In some exemplary embodiments the guide track is configured to support the section of the worktool on a bottom section thereof.

In some exemplary embodiments the guide track is wide in an inside section thereof than at a top opening thereof.

An aspect of an embodiment of the present invention provides for a pressure adjusting mechanism for varying a pressure applied by a clamping jaw to an object comprising an eccentric lever for linearly displacing the jaw in a forward and backward direction relative to a clamping jaw base of the jaw.

In some exemplary embodiments the eccentric lever includes a distal body having an eccentric bore.

In some exemplary embodiments the distal body includes a wall of varying thickness.

In some exemplary embodiments moving the lever in a first direction displaces the jaw in the forward direction and moving the lever in a second direction displaces the jaw in the backward direction. In some exemplary embodiments the lever includes an eccentric axis of rotation. In some exemplary embodiments the pressure adjusting mechanism includes an attachment element for attaching the lever to the clamping jaw base.

In some exemplary embodiments the attachment element is a pin.

In some exemplary embodiments the workbench includes an integral clamping jaw.

In some exemplary embodiments the first clamping device is adapted to move towards the clamping jaw forming a vise.

An aspect of an embodiment of the present invention provides for a workbench comprising at least one guide track extending along a section of the workbench and configured for allowing linear displacement of a work object along the guide track; at least one movable base configured to be accommodated, at least in part, inside the guide track and having a position locking mechanism, the at least one movable base having a fastening mechanism for releasably receiving the work object.

In some exemplary embodiments the work object is a clamping device.

In some exemplary embodiments the work object is a work piece.

In some exemplary embodiments the work object is a cutting tool.

In some exemplary embodiments the work object is a tool which applies force towards the workbench.

In some exemplary embodiments the position locking mechanism includes at least one set of interlocking teeth on a side of the base.

In some exemplary embodiments the side of the base is a lateral side.

In some exemplary embodiments the side of the base is a perpendicular side.

In some exemplary embodiments the at least one guide track includes teeth along at least a portion of a length of the guide track for mating with the interlocking teeth on the base.

In some exemplary embodiments the at least one guide track has parallel walls.

In some exemplary embodiments the at least one guide track has a cross-section which is asymmetric around a bisecting vertical plane thereof.

In some exemplary embodiments the at least one guide track has a cross-section which is narrower at top than inside. In some exemplary embodiments the at least one guide track includes at least two guide tracks.

In some exemplary embodiments the at least two guide tracks are perpendicular to one another.

In some exemplary embodiments the at least two guide tracks are parallel to one another.

In some exemplary embodiments the section is removable from the guide track.

An aspect of an embodiment of the present invention provides for a method of using a workbench having a guide track, comprising (a) sliding a tool at least partially inserted in a guide track, along the guide track; (b) releasing the tool to lock in place in the guide track; (c) unlocking the tool using a human finger; and (d) sliding the unlocked tool to a new location along the guide track.

In some exemplary embodiments the method comprises sliding two tools along one or more guide tracks of the workbench, so as to clamp an object between them.

An aspect of an embodiment of the present invention provides for a clamping system comprising at least one guide track; a first clamping device; a second clamping device including a base having a position locking mechanism, the base configured to be accommodated, at least in part inside a guide track; and wherein the second clamping device is configured to move forward and backward along the guide track towards the first clamping device, so as to clamp an object therebetween.

In some exemplary embodiments the at least one guide track is integral with or mounted on a workbench.

In some exemplary embodiments the position locking mechanism is a spring loaded locking mechanism operable by a human finger and released to lock.

In some exemplary embodiments the first clamping device is configured to press against an object in a preselected direction relative to the base.

In some exemplary embodiments the preselected direction is perpendicular to the base.

In some exemplary embodiments the first clamping device includes a rotary pressing arm.

In some exemplary embodiments the first clamping device includes a position locking mechanism for locking the position of the rotary pressing arm, the position locking mechanism having a stationary wheel, the wheel provided with at least one set of teeth circularly distributed thereabout.

In some exemplary embodiments the system further comprises a set of interlocking teeth configured to mate with the teeth on the wheel so as to prevent movement of the rotary pressing arm relative to the base.

Unless otherwise defined, all technical and/or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention pertains. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of embodiments of the invention, exemplary methods and/or materials are described below. In case of conflict, the patent specification, including definitions, will control. In addition, the materials, methods, and examples are illustrative only and are not intended to be necessarily limiting.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 schematically illustrates a perspective view of a clamping system including a section of a workbench with two movable clamping devices on a single guide track, according to an exemplary embodiment of the present invention;

Figure 2 schematically illustrates an exploded view of a clamping device, according to an exemplary embodiment of the present invention;

Figure 3A schematically illustrates a perspective view of parallel sets of guide track teeth, according to some exemplary embodiments of the present invention;

Figure 3B schematically illustrates a top view and a cross-sectional view A-A of the parallel sets of teeth, according to some exemplary embodiments of the present invention;

Figure 4 schematically illustrates a perspective view of a workbench included in a clamping system, according to some exemplary embodiments of the present invention;

Figure 5 schematically illustrates a perspective view of a clamping system including a pivotable clamping device, according to some exemplary embodiments of the present invention; Figure 6A schematically illustrates a perspective view of a clamping system including a clamping device for use with a guide rail on a workbench, according to some exemplary embodiments of the invention;

Figure 6B schematically illustrates a detailed perspective view of the position locking mechanism with the guide rail, according to some exemplary embodiments of the invention;

Figure 7A schematically illustrates a top view of clamping device and a guide rail in a clamping system, according to some exemplary embodiments of the present invention;

Figure 7B schematically illustrates a partially-exploded, perspective view of the clamping device, according to some exemplary embodiments of the present invention;

Figures 8A - 8C schematically illustrate top views of clamping systems in various object-holding configurations, respectively, according to some exemplary embodiments of the present invention;

Figure 8D schematically illustrates a top view of a system for positioning a worktool, according to some exemplary embodiments of the present invention;

Figure 9 schematically illustrates a perspective view of a clamping system including a workbench and clamping devices forming a vice, according to some exemplary embodiments of the present invention;

Figure 10A schematically illustrates a side view of a clamping system including a clamping device having a rotary pressing arm, according to some exemplary embodiments of the present invention;

Figures 10B and IOC schematically illustrate a perspective view and an exploded perspective view, respectively, of a circular position locking mechanism in the clamping device, according to some exemplary embodiments of the invention;

Figure 11 schematically illustrates a perspective view of a clamping system including a clamping device used with a clamping system, according to some exemplary embodiments of the present invention;

Figure 12 schematically illustrates a perspective view of a clamping system including a workbench being used for different applications, according to some exemplary embodiments of the present invention; Figure 13 schematically illustrates a perspective view of a section of a workbench having a single guide track with a single row of teeth along one side of the guide track, according to an exemplary embodiment of the present invention;

Figure 14 schematically illustrates a perspective view of a clamping device configured to be locked in position using frictional pressure on a workbench optionally having an integral clamping jaw, according to an exemplary embodiment of the present invention; and

Figure 15 schematically illustrates a perspective view of a generic base optionally including an x-y braking mechanism, according to an exemplary embodiment of the present invention.

Some embodiments of the invention are herein described, by way of example only, with reference to the accompanying drawings. With specific reference now to the drawings in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of embodiments of the invention. In this regard, the description taken with the drawings makes apparent to those skilled in the art how embodiments of the invention may be practiced.

DESCRIPTION OF SPECIFIC EMBODIMENTS OF THE INVENTION

The present invention, in some embodiments thereof, relates to moving tool systems, for example, clamping systems and, more particularly, but not exclusively, to a workbench integrating an adjustable clamping instrument.

An aspect of an embodiment of the present invention relates to a clamping system including a workbench and at least one clamping device, the workbench having one or more guide tracks accommodating the clamping device for allowing its movement along the surface of the workbench. Optionally, the clamping device may be moved in a forward and a backward direction along the guide tracks. Alternatively, the clamping device may be moved either in the forward or the backward direction along the guide tracks. In some embodiments, the clamping device may be locked in place.

In some exemplary embodiments, two or more clamping devices may be used on a same guide rail, or on different guide rails, and may act together to secure an object in a stationary position as in a vise. Optionally, one of the clamping devices is integrally affixed to the workbench, for example, in the form of a stationary clamping jaw at an edge of the table configured to act serve as a vise with a movable clamping device. In some embodiments, the work bench may include two or more guide tracks which may be arranged in a perpendicular configuration and/or parallel configuration. In some embodiments, the guide tracks may be arranged diagonally across a portion of the workbench. Use of multiple guide tracks and/or multiple clamping devices is potentially advantageous as an object may be secured on the workbench from different directions using the multiple clamping devices. For example, in the case of a rectangular object or an irregular shaped object having sides which are non-parallel, the objects may be secured with three or even four or more clamping devices. In some embodiments, securing the object from different directions provides for increased safety to a user of the system. Furthermore, use of multiple guide tracks and/or multiple clamping devices may contribute to an increase in productivity and to a decrease in production costs as more than one object may be simultaneously worked on the workbench. In some embodiments, use of multiple guide tracks and/or multiple clamping devices provides the workbench with a dynamic clamping configuration wherein the dimensions of the workbench surface is adjustable according to clamping requirements. In some embodiments, the clamping device may be freely rotatable, replaceable and/or adjustable to match a part of the shape of the workpiece.

In some exemplary embodiments, objects or worktools other than clamping devices, for example machining tools such as routers, saws, drills, work pieces among others, may be accommodated into the one or more tracks on the workbench and may be moved along the tracks. Optionally, the clamping device and/or the worktools includes a base configured to slide inside the guide tracks for allowing the worktool' s axial displacement along the length of the guide tracks. Optionally, the clamping device and the worktools may be removably connected to the base. Optionally, the base is configured to allow for the clamping device and the worktool to be interchanged (clamping device is removed from base and replaced by worktool). In some embodiments, the worktool and the clamping device may both be mounted on the workbench for use in a same machining operation or different machining operations. Optionally, the worktool and the clamping device may be positioned on a same guide track. In some embodiments, the base may be configured for allowing a worktool to be moved in an x-y direction, for example, by sliding the base first along a guide track oriented along the x-axis and then sliding the base along a guide track oriented along the y-axis (or the inverse). In some embodiments, the tool may be rotatable for adjusting its position according to the type of work to be performed and/or according to the shape of the work piece.

In some exemplary embodiments, the guide track may extend to an edge of the workbench for allowing quick removal of a worktool, which may include the clamping device, by moving it to the edge where it may be slipped out of the guide track. Optionally, the worktool may be inserted from above. Optionally, a replacement worktool may be quickly installed in the workbench by sliding the worktool into the guard rail at the edge. In some embodiments, a guide track extending along the length or width of the workbench terminates at opposing edges of the workbench allowing for worktool removal/installation through both edges. Alternatively, the guide track terminates at only one edge of the workbench. In some embodiments, the guide track does not extend to the edges of the workbench but includes a guide track receptacle through which the worktool may be removed and/or installed on the workbench. Optionally, the guide track receptacle is configured to loosely accommodate the base allowing a user to insert in into the receptacle and to remove it from the receptacle. In an exemplary mode of operation, the worktool is slid along the guide track towards the guide track receptacle and once the base is positioned inside the worktool may be lifted and removed. Additionally, for installing a worktool, the base is inserted into the guide track receptacle and the slid along the guide track to the desired position for the worktool. In some embodiments, the guide tracks may be added onto a workbench, for example, as sections which may be removable. Optionally, the guide tracks may be affixed to a work surface of the workbench. Optionally, the guide tracks may be mounted onto the work surface of the workbench.

In an exemplary embodiment of the invention, the force applied by such a clamp is between 1 and 24,000 kilograms of force, for example, between 10 and 100 kilograms. Optionally, at least some of the force is applied by a final adjustment where an eccentric is rotated to advance the clamp jaw towards the object being clamped. Optionally, such an eccentric has an eccentricity of, for example, between 1 and 4 mm, on a diameter of, for example, between 10 and 40 mm and uses a lever of, for example, between 8 and 15 cm long. In an exemplary embodiment of the invention, a clamping system is provided which has both high positional accuracy (e.g., using the eccentric adjustor) (e.g., better than 1 mm, 0.5 mm, 0.1 mm, 0.05 mm) and high strength (e.g., using the multiple mating of teeth) (e.g., more than 1 kg, 10 kg, 100 kg, 1000 kg or greater or intermediate values).

In an exemplary embodiment of the invention, a workbench size is, for example, between 0.01 and 2 square meters in area or greater, for example, between 0.1 and 0.25 square meters in area.

In an exemplary embodiment of the invention, the workbench is mounted on or integral with a table. Optionally or alternatively, the workbench is mounted on or integral with a vehicle. Optionally or alternatively, the workbench is mounted on or integral with a toolbox. In some of these embodiments, the workbench is initially provided as a stand-alone element with a thickness of, for example, between 0.2 and 4 cm.

In an exemplary embodiment of the invention, the workbench is made of metal, such as aluminum or steel, or is made of wood, plastic or laminate material, or other relatively rigid materials. In some cases, the guide track is sheathed (and/or teeth formed) with a different material, for example, to reduce friction and/or wear and/or to prevent failure. For example, the different material may be steel. The mating part of the locking mechanism may be made of materials as noted to the workbench and/or guide track and/or sheath.

An aspect of an embodiment of the present invention relates to a system for locking a position of a worktool, for example, the clamping device, on the workbench. Although the worktool is described herein with reference to the clamping device, an ordinary person skilled in the art may find that the system may be readily applied to other types of work tools, including machining tools (e.g. drills, saws, routers, among others, as previously mentioned). In some embodiments, a position locking mechanism is implemented in the base of the clamping device for locking its position inside a guide rail. Optionally, the base is locked in a default mode for preventing movement of the base in a backward direction. Optionally, preventing backward movement provides for improved pressing by the clamping device. Additionally or alternatively, movement is prevented in the forward direction in the default mode. Movement of the base, and thereby the clamping device, is enabled by releasing a movement locking mechanism adapted to push a braking mechanism against the sides of the guide tracks in the default mode. Optionally, the movement locking mechanism includes a spring mechanism. In some embodiments, when unlocked, the clamping device may be moved along the guide track in a forward or backward direction, as required by the user.

In some exemplary embodiments, the braking mechanism may include one or more rows of teeth extending along at least a portion of one side of the base configured to interlock with one or more rows of teeth extending longitudinally along an opposing side of the guide track. Optionally, interlocking of the teeth prevents backward movement of the clamping device while allowing forward movement in the default mode. In some embodiments, the interlocking teeth and the guide track teeth may be shaped substantially as right triangles for allowing forward motion of the clamping device and preventing backward motion. Optionally, the mating area of the teeth has an inclination between 20° - 80°, for example 25°, 35°, 40°, 45°, 50°, 55°, 65°, 75°. WO 2010/067356 A2 by the applicant describes a same teeth interlocking configuration. In some embodiments, the braking mechanism may include parallel rows of teeth on opposing sides of the base for interlocking with parallel rows of teeth on opposing side of the guide track. In some embodiments, the braking mechanism may include perpendicular rows of teeth, for example along at least one edge on one side of the base and at least along a perpendicular side of the base. Optionally, this braking mechanism arrangement allows for the base to reversibly insert inside a guide track. Additionally or alternatively, this braking mechanism allows for transposing of base movement between guide tracks oriented along the x-axis and the y-axis, allowing for two-dimensional displacement of a worktool on the workbench.

In some exemplary embodiments, the interlocking teeth on the base and the teeth on the guide track include two or more parallel rows of teeth. A first row of teeth is oriented (angled) for allowing forward motion of the clamping device along the guide track while the second row of teeth is oriented (angled) for allowing backward motion of the clamping device along the guide track. In some embodiments, this parallel row of teeth with inverted right triangle orientation substantially prevents forward and backward motion of the base along the guide track and provides for a more secure locking of the clamping device's position compared to using only one row of teeth or using other teeth mating configurations. In some embodiments, a locking position of the base may be adjusted in steps less than a pitch of a tooth (compared to when only one row of interlocking teeth is used where the size of the step is that of the pitch) as a result of the two parallel inverted rows of teeth overlapping. For example, the steps may be equal to 80% of the pitch of a tooth, 70% of the pitch, 60% of the pitch, 50% of the pitch, or less. In some embodiments, this feature is potentially advantageous as it allows better control of the force exerted on the object by the clamping device; application of excessive force is controlled by preventing the clamping device from moving forward once locked in place, and a reduction of applied force is controlled by preventing the clamping device from moving backward once locked in place.

In an exemplary embodiment of the invention, the teeth are sized so that a size of a step of the locking mechanism is between 0.1 and 6 mm, for example, between 1 and 4 mm or between 0.5 and 2 mm, or other intermediate or smaller or greater sizes.

In an exemplary embodiment of the invention, reducing the step size allows reducing the diameter of the eccentric adjustor (e.g., used to provide the last amount of contract between the clamp jaw and the work piece and/or set a pressure level thereon). Optionally, this allows to increase the leverage applied by the eccentric adjustor when applying force on the clamp.

In an exemplary embodiment of the invention, the range of motion of the eccentric adjustor is selected to be a factor of between 1 and 2.5 (or more) of the step size.

In some exemplary embodiment, the braking mechanism may be automatically activated by use of electrical and/or hydraulic power. Optionally, the activation may be by remote control by a user, and/or by use of a sensory mechanism which may be processor controlled. In some embodiments, the processor controlled sensory system may include the use of optical sensors, mechanical sensors, among other types of sensors suitable for the application and known in the art. In some embodiments, worktool movement along the guide tracks may be motor-driven, and may include use of automation, for example, by including a drive system in the base, or including a belt- drive system in the workbench connecting to the base. In some embodiments, the braking mechanism may include a spring mechanism with a push-to-slide feature. In some embodiments, the braking mechanism may include a friction-based mechanism for locking the worktool in position in the guide track.

In an exemplary embodiment of the invention, the locking/braking mechanism is a spring-loaded mechanism, which is released using a downwards or angled pressure of a human finger or palm, and/or activated by squeezing between, for example, two fingers. In an exemplary embodiment of the invention, a single such action activates and retracts a plurality of sets of teeth, for example, on opposite sides of the moving element.

In an exemplary embodiment of the invention, between 2 and 100 teeth are used for the interlocking teeth, for example, between 4 and 20 teeth, for example, 15 teeth for each set of interlocking teeth. In an exemplary embodiment of the invention, each (or most) tooth has a contact area with a mating tooth of between 0.1 and 40 mm^A2, or more, for example, between 1 and 20 mm^A2.

An aspect of some embodiments of the present invention relates to a position locking mechanism including a rotary mechanism of a circular, or partially circular shape, configured to interlock with a circular, or partially circular, shaped guide track. Optionally, the locking mechanism and the guide track are used to lock in position levers and extension arms in the worktools.

An aspect of some embodiments of the present invention relates to a pressure adjusting mechanism for allowing a user adjust the pressure applied on an object by a jaw on the clamping device. The pressure adjusting mechanism allows for the jaw to be linearly displaced in a direction towards the object, or away from the object, once the clamping device is secured in position. This is particularly advantageous as it prevents a user from applying excessive force on the object if the clamping device is placed too close to the object, or from applying too little force if the device is placed too far from the object. In some embodiments, the jaw connects to a lever which displaces the jaw forward and backwards relative to the clamping device. Optionally, the lever is manually operated by the user. In some embodiments, the lever includes a rotatable handle, optionally having an eccentric axis of rotation. Rotating the handle in one direction pushes the jaw in the forward direction towards the object, while rotating the handle in the opposite direction pulls the jaw in a direction away from the object.

Before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not necessarily limited in its application to the details of construction and the arrangement of the components and/or methods set forth in the following description and/or illustrated in the drawings and/or the Examples. The invention is capable of other embodiments or of being practiced or carried out in various ways.

CLAMPING SYSTEM

Workbench and Clamping Device

Reference is now made to Figure 1 which schematically illustrates a perspective view of a clamping system 100 including a section of a workbench 102 with two movable clamping devices 104A and 104B on a single guide track 106, according to an exemplary embodiment of the present invention. Reference is also made to Figure 2 which schematically illustrates an exploded view of clamping device 104, according to an exemplary embodiment of the present invention.

In some exemplary embodiments, clamping device 104A and 104B are configured to move forward and backwards along guide track 106. Optionally, clamping device 104A and 104B act as jaws of a vise for securing an object (not shown) between them in a stationary position on workbench 102.

In some exemplary embodiments, clamping device 104 includes a clamp jaw base 108 accommodating a position locking mechanism 110 inside a chamber 111 on longitudinally opposing sides 112A and 112B of the base. Each position locking mechanism 110 optionally includes a set of interlocking teeth 114 and a spring element 116. Spring element 116 is positioned inside chamber 111 so that, in a state of equilibrium, interlocking teeth 114 protrude outwardly from chamber 111. In this position, clamping device 104 is optionally locked in a stationary position in guide track 106. Optionally, position locking mechanism 110 further includes a disengagement lever 118 which, when acted upon, retracts interlocking teeth 114 into chamber 111. In this position, clamping device 104 may be moved forward and backwards along guide track 106 In some embodiments, position locking mechanism 110 may be implemented using other mechanical means, for example, by using lever 118 to push interlocking teeth 114 outwardly from chamber 111 for locking clamping device 104 in guide track 106, and to retrieve the interlocking teeth into the chamber for releasing the clamping device.

In some exemplary embodiments, attached to a forward section of clamping base 108 is a jaw 120. Jaw 120 includes an outer face 122 adapted to abut with the object and through which a force is applied for holding the object in place. Jaw 120 additionally includes an inner face 124 with an attachment section 126 through which the jaw is attached to base 108. In some embodiments, attachment section 126 includes an opening 127 which mates with a pin 128 on the forward section of base 108. Optionally, pin 128 may be used as a pivot for allowing jaw 120 to be placed at an angle relative to a longitudinal axis of base 108. Optionally, jaw 120 is placed at an angle relative to a longitudinal axis of guide track 106. In some embodiments, jaw 120 includes a position-securing element, for example, a fixation pin 130 for affixing the jaw to base 108 at the desired angle relative to the longitudinal axis. Additionally or alternatively, fixation pin 130 affixes jaw 120 to base 108 so that the jaw lies in a plane perpendicular to the longitudinal axis.

In some exemplary embodiments, clamping device 104 includes a pressure adjustment mechanism 132 including a lever 134 and a body 136 distally attached to the lever. Optionally, lever 134 is an eccentric lever. Pressure adjustment mechanism 132 is configured for allowing jaw 120 to be moved in a direction towards the object and away from base 108 for increasing a pressure applied by the jaw to the object, and is further configured for allowing jaw 120 to be moved in a direction away from the object and towards the base for reducing the pressure exerted by the jaw on the object. In some embodiments, body 136, which may be cylindrically shaped, is adapted to be fittedly inserted into opening 127 in attachment section 126. Body 136 includes an eccentrically positioned bore 138 which accommodates pin 128 and allows for eccentric rotational motion of lever 134 relative to a rotational axis of the pin.

In some exemplary embodiments, eccentric rotational motion of lever 134 relative to the rotational axis of pin 128 in a first direction pushes jaw 120 forward towards the object, while motion in a second opposite direction pulls the jaw away from the object. This is the result of a varying thickness in circumferential wall 140 of body 136, which varies from a minimum thickness of A to a maximum thickness of B as a result of the eccentricity of bore 138. By varying an amount of rotation of lever 134, the pressure of jaw 120 on the object may be increased or decreased, and adjusted accordingly.

In some exemplary embodiments, guide track 106 includes a set of teeth 142 extending longitudinally along both sides of at least a portion of the guide track. Teeth 142 are adapted to mate with interlocking teeth 114 on clamping device 104 for locking the device in a stationary position in guide track 106. Alternatively, clamping device 104 may move forward but is prevented from moving backwards along guide track 106 when teeth 142 and interlocking teeth 110 mate. Optionally, clamping device 104 is prevented from moving forward by the clamped object. Optionally, an opposing clamping device 104 prevents forward movement of the other device.

In some exemplary embodiments, interlocking teeth 114 include a first set of interlocking teeth 144 and a second parallel set of interlocking teeth 146. Optionally, guide track teeth 106 includes a first set of teeth 148 and a second parallel set of teeth 150 configured for mating with interlocking teeth 144 and 146, respectively. Reference is now also made to Figure 3A which schematically illustrates a perspective view of parallel sets of teeth, for example guide track teeth 148 and 150, and to Figure 3B which schematically illustrates a top view and a cross-sectional view A-A of the parallel sets of teeth, according to some exemplary embodiments of the present invention. Although reference in Figures 3A and 3B is made to guide track teeth 148 and 150, the figures are equally applicable to interlocking teeth 144 and 146 which are configured to mate with teeth 148 and 150. Furthermore, although the description is provided with reference to parallel sets of teeth, an ordinary person skilled in the art may find that the invention may be practiced in some embodiments with one line of teeth instead of two parallel lines of teeth in a similar teeth configuration to that described by the applicant in WO 2010/067356.

In some exemplary embodiments, teeth 148 and 150 are oriented in opposite directions which substantially prevent movement of clamping device 104 when engaging interlocking teeth 144 and 146, respectively. For example, teeth 148 may be oriented for allowing forward movement of clamping device 104 while preventing backward movement, and teeth 150 may be oriented for allowing backward movement of the clamping device while preventing forward movement. In some exemplary embodiments, teeth 144 - 150 may be shaped as right triangle having an angle of inclination ranging from 20° - 80°, for example 45° as shown. In some embodiments, teeth 144 - 150 may include triangular shapes other than that of a right triangle suitable for preventing backward motion of clamping device 104 and for allowing forward motion when only a single line of teeth is used, and for substantially locking the clamping device in position when parallel lines of teeth are used.

Workbench with Guide Tracks

Reference is now made to Figure 4 which schematically illustrates a perspective view of a workbench 202 included in a clamping system 200, according to some exemplary embodiments of the present invention. Workbench 202 includes a first guide track 206A having a set of teeth 242A extending along a rim 207 on both sides of the track, and a second guide track 206B having a set of teeth 242B extending along a slot 209 below rim 207 on both sides of the track. In some embodiments, a position of interlocking teeth 110 on clamping jaw base 108 may vary depending on the type of guide track on which the device will be used. Optionally, interlocking teeth 110 are positioned so that they may mate with both teeth 242A and 242B. Additionally or alternatively, a shape of base 108 may vary according to the guide track on which it is used.

In an exemplary embodiment of the invention, the guide track has a cross- section which defines a flat bottom, optionally with the bottom wider than an entry slot. Alternatively, other guide track cross-sections may be provided, for example, that of a truncated triangle, a guide track with an angled bottom, a guide track with a rounded bottom and/or other shapes.

While the guide track is shown as being embedded in the workbench, it can also be attached form above. In other embodiments, a slot is provided in the work bench and the guide track is provided on the other face of the workbench and accesses through the slot.

In an exemplary embodiment of the invention, the guide track is between 2 and

40 mm wide or wider, for example, between 5 and 15 mm wide and is between 3 and 30 mm deep, or deeper, for example, between 5 and 15 mm deep. In an exemplary embodiment of the invention, the guide track may be curved. In this and other embodiments, a locking mechanism may include multiple separated toothed axial sections interconnected by a hinge or other bendable connection, such as a flexible element. Alternatively, a rigid connector is used.

Clamping System with Pivotable Clamping Device

Reference is now made to Figure 5 which schematically illustrates a perspective view of a clamping system 300 including a pivotable clamping device 304, according to some exemplary embodiments of the present invention. Clamping system 300 additionally includes clamping device 104 which together with clamping device 304 may be used as a vise.

In some exemplary embodiments, clamping device 304 is substantially similar to clamping device 104 with the difference that clamping device 304 includes a swivel channel 334 which allow for placing jaw 120 at an angle relative to a longitudinal axis of guide track 330. A fixation element 330 is used to secure jaw 120 at the desired angle. A potential advantage of clamping element 304 is that irregularly shaped objects may be secured with the clamping device.

As shown below in Fig. 10A, for example, rotation of the jaw can also (or instead) be in planes not parallel to the workbench. In an exemplary embodiment of the invention, such adjustment is applied when the jaw is not locked in place, especially if two such jaws are simultaneously being adjusted, and then the jaws are both locked in place simultaneously or in sequence.

Clamping System with Guide Rail

Reference is now made to Figure 6A which schematically illustrates a perspective view of a clamping system 400 including a clamping device 404 for use with a guide rail 406 on a workbench 402, and to Figure 6B which schematically illustrates a detailed perspective view of position locking mechanism 110 with the guide rail, according to some exemplary embodiments of the invention. Reference is also made to Figure 7A which schematically illustrates a top view of clamping device 404 and guide rail 406 in clamping system 400, and to Figure 7B schematically illustrating a partially-exploded, perspective view of the clamping device, according to some exemplary embodiments of the present invention.

In some exemplary embodiments, guide rail 406 is used on workbench 402 instead of guide tracks, the guide rail lying above the surface of the workbench. Clamping device 404 includes a channel 409 in base 408 which accommodates guide rail 406, optionally providing support as the device moves back and forth along the rail. In some embodiments, guide rail 406 may be at a same height as a surface of workbench 402 and base 408 lies inside a channel (not shown) in the workbench.

In some exemplary embodiments, guide rail 406 includes teeth 442 on opposing sides and extending along at least a portion of the rail. Teeth 442 may be a single line of teeth or a parallel line of teeth as previously described in some exemplary embodiments. In some embodiments, teeth 114 are located on only one side of base 408. Optionally, teeth 442 may be located on both side of guide rail 406 or only on one side opposing teeth 114. Base 408 includes position locking mechanism 110 including interlocking teeth 114 which are adapted to mate with teeth 442 for locking clamping device 404 in position. Alternatively, interlocking teeth 114 are adapted to allow forward motion of clamping device 404 while preventing backward motion. A locking mechanism 405 is configured for moving interlocking teeth 114 in a direction towards, and away from, teeth 442. In some embodiments, pressure adjusting mechanism 132 is attached to a cover plate 433 adapted to cover guide rail 406 inside channel 409. Optionally, cover plate 433 prevents possible inadvertent detachment of clamping device 404 from guide rail 406.

Clamping System and Re ular/Irre ular Object Support

Reference is now made to Figures 8A - 8C which schematically illustrate top views of clamping systems 500A - 500C in various object-holding configurations, respectively, and to Figure 8D which schematically illustrates a top view of a system 500D for positioning a worktool 507, according to some exemplary embodiments of the present invention. In some embodiments, one or more of clamping systems 500A - 500D may be configured for matching to the irregularity of an object for securing the object in place. In some embodiments, one or more of clamping systems 500A - 500D may include clamping devices having swivel jaws for adapting to the irregular shape of an object. Additionally or alternatively, the jaws may include an eccentric connection for allowing their forward and backward displacement for applying pressure. In some embodiments, the jaws may be replaceable, for example, an eccentrically connected jaw replaceable by a swivel jaw, or a fixed jaw.

In Figure 8A, clamping system 500A includes a workbench 502A having two guide tracks 506A perpendicular intersecting one another (x-y axes configuration). Optionally, a rectangular object 503A is held stationary in place along the x-axis by a clamping device 504 having a fixed jaw and by a clamping device 505 having a swivel jaw forming a vise; and along the y-axis by a second clamping device 504 and 505 forming a second vise. In some embodiments, clamping devices 504 may be replaced by clamping devices 505, or inversely, clamping devices 505 may be replaced by clamping devices 504. In some embodiments, guide tracks 506A may be replaced by guide rails.

In Figure 8B, clamping system 500B includes a workbench 502B having a single guide track 506B extending along a length of the workbench. Optionally, an irregular- shaped object 503B is held stationary in place by two clamping devices 504 forming a vise. In some embodiments, either one or both clamping devices 504 may be replaced by clamping devices 505 which may allow supporting object 503B along a portion of a side of the object not perpendicularly oriented to the longitudinal axis of guide track 506B. In some embodiments, guide track 506B may be replaced by a guide rail.

In Figure 8C, clamping system 500C includes a workbench 502C having two guide tracks 506A parallel to one another and extending along a length of the workbench. Optionally, an irregular- shaped object 503C is held stationary in place by four clamping devices 505, two on each guide track 506C, forming two vises. In some embodiments, clamping devices 505 pressing on sides of object 503C perpendicular to the longitudinal axis of guide tracks 506C may be replaced by clamping devices 504. Additionally or alternatively, one or more clamping devices 504 may press on a top or a bottom surface of the work piece. In some embodiments, guide tracks 506C may be replaced by guide rails.

In Figure 8D, is shown a worktool positioning system 500 including a workbench 502D having two guide tracks 506D parallel to one another and extending along a length of the workbench. Optionally, system 500D includes a worktool 507 which is locked in position for performing a machining operation. In some embodiments, guide tracks 506D may be replaced by guide rails. Clamping System and Worktool Support

Reference is made to Figure 9 which schematically illustrates a perspective view of a clamping system 600 including a workbench 602 and clamping devices 604 forming a vice, according to some exemplary embodiments of the present invention. Workbench 602 includes two parallel guide tracks 606 extending along a length of the workbench. Optionally, parallel guide tracks 606 extend to the ends of workbench 602 and allow for relatively rapid removal and/or insertion of clamping devices 604 or other worktools in the guide tracks. Two clamping devices 604 are locked in position in one guide track 606 securing in place a tool support 609, for example, a support for a drill, allowing displacement of the tool support in an x-y direction. In some embodiments, clamping devices 604 may include any one or combination of clamping devices disclosed herein. Guide tracks 606 may be replaced by guide rails as previously described herein.

Clamping System with Clamping Device and Rotary Pressing Arm

Reference is made to Figure 10A which schematically illustrates a side view of a clamping system 700 including a clamping device 704 having a rotary pressing arm 713, according to some exemplary embodiments of the present invention. Reference is also made to Figures IOC and 10B which schematically illustrate a perspective view and an exploded perspective view, respectively, of a circular position locking mechanism 710 in clamping device 704, according to some exemplary embodiments of the invention.

In some exemplary embodiments, clamping device 704 includes a base 708 configured to move forward and backward along a guide track in workbench 702. Optionally, clamping device 704 may be used with a second clamping device to form a vise on workbench 702. Alternatively, clamping device 704 may be used for pressing in a vertical direction downwardly against an object placed on workbench 702 for securing the object in place. Alternatively, clamping device 704 may be used for pressing horizontally, optionally at an angle, against an object supported in an opposing direction.

In some exemplary embodiments, position locking mechanism 710 is adapted to allow pressing arm 713 to be locked into position and to be substantially quickly released from the locked position. Position locking mechanism 710 is housed in an arm support 709 attached to base 708 and includes teeth 742 circularly distributed on a stationary wheel 743. Position locking mechanism 710 optionally includes interlocking teeth 714 and a spring element 716 inside a chamber 711 in arm support 709. Spring element 716 is positioned inside chamber 711 so that, in a state of equilibrium, interlocking teeth 714 protrude outwardly from chamber 711 and mate with teeth 742. In this position, arm 713 is locked in a stationary position. Alternatively, arm 713 may be rotated in a forward direction towards a secured object but is prevented from being rotated backwards in a direction away from the object. Position locking mechanism 710 optionally includes a disengagement lever 718 which, when acted upon, retracts interlocking teeth 714 into chamber 711 releasing arm 713. In this position, arm 713 may be moved forward and backwards. In some embodiments, position locking mechanism 710 may be implemented using other mechanical means, for example, by using lever 718 to push interlocking teeth 714 outwardly from chamber 711 for mating with teeth 742 and locking arm 713, and to retrieve the interlocking teeth into the chamber for releasing the arm.

In some exemplary embodiments, clamping device 704 includes a pressure adjustment mechanism 732 including a lever 734 on arm 713. Optionally, lever 734 is an eccentric lever. Pressure adjustment mechanism 732 is configured for allowing arm 713 to be moved in a direction towards the object and away from base 708 for increasing a pressure applied by the jaw to the object, and is further configured for allowing arm 713 to be moved in a direction away from the object and towards the base for reducing the pressure exerted by the jaw on the object.

Clamping System with Vertical Pressing Clamping Device

Reference is now made to Figure 11 which schematically illustrates a perspective view of a clamping system 800 including clamping device 704 used with clamping system 600, according to some exemplary embodiments of the present invention. Clamping device 704 is positioned in second guide track 606 and is used to secure an object 703 onto workbench 602 by the application of a downward vertical force. Multiple Application Clamping System

Reference is now made to Figure 12 which schematically illustrates a perspective view of a clamping system 900 including a workbench 602 being used for different applications, according to some exemplary embodiments of the present invention. Shown are two clamping devices 104 securing a first object 904 while a third clamping device 104 secures a second object against clamping device 304, all mounted on a same guide track 606. Additionally shown is a saw 904 mounted on a base 908 with a position locking mechanism 910 which is movable along a parallel second guide track 606. In some embodiments, objects 904 and 903 are displaced towards saw 904 by moving the clamping devices in the direction of the saw. Alternatively, saw 904 is moved towards objects 903 and 904.

Clamping System with Workbench having Fixed Jaw

Reference is now made to Figure 13 which schematically illustrates a perspective view of a section of a workbench 1002 having a single guide track 1006 with a single row of teeth 1042 along one side of the guide track, according to an exemplary embodiment of the present invention. Positioned in guide track 1006 is a clamping device 1004 having a position locking mechanism 1010 having only one row of teeth 1014 for interlocking with teeth 1042.

Clamping System with Friction Locking Mechanism

Reference is now made to Figure 14 which schematically illustrates a perspective view of a clamping device 1104 configured to be locked in position on a workbench 1102 using frictional pressure, according to an exemplary embodiment of the present invention. Positioned in a guide track 1106 is clamping device 1104 having a position locking mechanism 1110 with pressure applying mechanism 1114 which exerts a force against a wall 1142 of the guide track. By pressing against wall 1142, friction prevents movement of clamping device 1104. In some embodiments, pressure applying mechanism 1114 exerts a force against both opposing walls 1142 in guide track 1106. In some embodiments, wall 1142 may include a material to increase frictional resistance, for example, a coating of an abrasive material. Additionally or alternatively, the elements in position locking mechanism 1110 which exert the force against wall 1142 may include the abrasive material. In some embodiments, workbench 1102 may include a stationary clamping jaw 1143 affixed to an edge of the workbench. Optionally, clamping jaw 1143 is an integral part of workbench 1102. In some embodiments, clamping jaw 1143 may be positioned at an end of guide track 1196.

Worktool/Clamping Device Base

Reference is now made to Figure 15 which schematically illustrates a perspective view of a generic base 1208 including positioning system 110 for use in perpendicularly arranged guide tracks 106, according to an exemplary embodiment of the present invention. Generic base 1208 may be used on a workbench 1202 having perpendicularly arranged guide tracks 106 and may be capable of movement along either one of the guide tracks along the x-y axis.

In some exemplary embodiments, generic base 1208 may include a first position system 110 having interlocking teeth 114 and spring element 116 along a lateral side 1203 of the base, and may include a second positioning system 110 along a perpendicular side 1205 of the base. This perpendicular arrangement of positioning systems 110 may allow for base 1208 to be reversibly inserted into guide tracks 106, for example so that positioning system 110 on lateral sides 1203 provides position locking of the base, or alternatively, so that positioning system 110 on perpendicular side 1205 provides the position locking. In some embodiments, the perpendicular arrangement of positioning locking systems 110 allow for base 1208 to be used on both guide tracks 106. Optionally, base 1208 may be transposed between guide tracks 106, for example, by first sliding along the x-axis until reaching guide tracks intersection 1207, where the base may then be slid along the y-axis. In some embodiments, base 1209 includes a worktool connector opening 1209 for interchangeably accommodating a worktool. Optionally, opening 1209 may be threaded for allowing the worktool to be attached using a threaded fastening mechanism or may include other fastening means known in the art.

The terms "comprises", "comprising", "includes", "including", "having" and their conjugates mean "including but not limited to".

The term "consisting of means "including and limited to".

The term "consisting essentially of" means that the composition, method or structure may include additional ingredients, steps and/or parts, but only if the additional ingredients, steps and/or parts do not materially alter the basic and novel characteristics of the claimed composition, method or structure.

Throughout this application, various embodiments of this invention may be presented in a range format. It should be understood that the description in range format is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the invention. Accordingly, the description of a range should be considered to have specifically disclosed all the possible subranges as well as individual numerical values within that range. For example, description of a range such as from 1 to 6 should be considered to have specifically disclosed subranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1, 2, 3, 4, 5, and 6. This applies regardless of the breadth of the range.

Whenever a numerical range is indicated herein, it is meant to include any cited numeral (fractional or integral) within the indicated range. The phrases "ranging/ranges between" a first indicate number and a second indicate number and "ranging/ranges from" a first indicate number "to" a second indicate number are used herein interchangeably and are meant to include the first and second indicated numbers and all the fractional and integral numerals therebetween.

It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination or as suitable in any other described embodiment of the invention. Certain features described in the context of various embodiments are not to be considered essential features of those embodiments, unless the embodiment is inoperative without those elements.

Although the invention has been described in conjunction with specific embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications and variations that fall within the spirit and broad scope of the appended claims.

All publications, patents and patent applications mentioned in this specification are herein incorporated in their entirety by reference into the specification, to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated herein by reference. In addition, citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the present invention. To the extent that section headings are used, they should not be construed as necessarily limiting.

Claims

WHAT IS CLAIMED IS:

1. A clamping system comprising:

a first clamping device including a base having a position locking mechanism, said base configured to be accommodated, at least in part inside a guide track in a workbench; and

a workbench including at least one guide track;

wherein said first clamping device is configured to move forward and backward along said guide track.

2. A clamping system according to claim 1 further comprising a second clamping device including a base having a position locking mechanism, said base configured to be accommodated inside a guide track in a workbench, and configured to move in a forward and backward direction along a same guide track as said first clamping device.

3. A clamping system according to either one of claims 1 and 2 wherein said position locking mechanism includes at least one set of interlocking teeth, and wherein said at least one guide track includes teeth along at least a portion of its length for mating with said interlocking teeth in said position locking mechanism.

4. A clamping system according to claim 2 wherein said first and second clamping device are adapted to move towards one another forming a vise.

5. A clamping system according to claim 3 wherein said at least one set of interlocking teeth includes two parallel rows of interlocking teeth.

6. A clamping system according to claim 5 wherein the teeth in a first row of said two parallel rows are angled in a forward direction and the teeth in a second row are angled in a backward direction.

7. A clamping system according to claim 3 wherein said at least one set of interlocking teeth comprises two sets of interlocking teeth facing opposite directions to mate with teeth on inner surfaces of said at least one guide track.

8. A clamping system according to claim 7, wherein said at least one set of interlocking teeth is disengageable from said teeth on said inner surfaces using a single control.

9. A clamping system according to claim 8, wherein said control is configured to be operated by pressure from a human finger and is spring-loaded to cause said interlocking teeth and said teeth on said inner surfaces to mate, when released.

10. A clamping system according to claim 1 wherein said at least one guide track includes at least two guide tracks.

11. A clamping system according to claim 10 wherein said at least two guide tracks are one of perpendicular to one another and parallel to one another.

12. A clamping system according to claim 1 wherein said clamping device includes a jaw for applying a pressure to an object.

13. A clamping system according to claim 12 wherein said clamping device includes a swivel mechanism for adjusting an angle of said jaw relative to a longitudinal axis of said at least one guide track.

14. A clamping system according to claim 13, wherein said swivel mechanism is releasable from a locking position by pressure from a human finger and is spring-loaded to return to such a locking position.

15. A clamping system according to claim 13, wherein said swivel mechanism is configured to freely rotate within a range of motion thereof.

16. A clamping system according to any one of claims 12-15, wherein said jaw comprises a replaceable pressure plate.

17. A clamping system according to claim 12 wherein said clamping device includes a pressure adjusting mechanism for adjusting the pressure applied by said jaw.

18. A clamping system according to claim 17 wherein said pressure adjusting mechanism includes a handle having an eccentric axis of rotation.

19. A system for locking a position of a worktool or base thereof on a workbench comprising:

at least one set of interlocking teeth on a section of said worktool or a base thereof configured to be accommodated inside a guide track in a workbench; and

at least one guide track on the workbench having teeth along at least a portion of a length of said guide track for mating with said interlocking teeth on said worktool or base thereof.

20. A system according to claim 6, wherein said teeth arrangement reduces a minimal pitch of said system by at least 50% when compared to a single teeth row system.

21. A system according to claim 19 wherein said guide track teeth and said interlocking teeth have a substantially right triangle cross-sectional shape.

22. A system according to claim 19, wherein said guide track is configured to support said section of said worktool on a bottom section thereof.

23. A system according to claim 19, wherein said guide track is wider at an inside section thereof than at a top opening thereof.

24. A pressure adjusting mechanism for varying a pressure applied by a clamping jaw to an object comprising an eccentric lever for linearly displacing the jaw in a forward and backward direction relative to a clamping jaw base of said jaw.

25. A pressure adjusting mechanism according to claim 24 wherein said eccentric lever includes a distal body having an eccentric bore.

26. A pressure adjusting mechanism according to claim 25 wherein said distal body includes a wall of varying thickness.

27. A pressure adjusting mechanism according to any one of claims 24 to 26 wherein moving said lever in a first direction displaces the jaw in said forward direction and moving said lever in a second direction displaces the jaw in said backward direction.

28. A pressure adjusting mechanism according to any one of claims 24-26 including an attachment element for attaching said lever to said clamping jaw base.

29. A pressure adjusting mechanism according to claim 28 wherein said attachment element is a pin.

30. A clamping system according to claim 1 wherein said workbench includes an integral clamping jaw.

31. A clamping system according to claim 30 wherein said first clamping device is adapted to move towards said clamping jaw forming a vise.

32. A workbench comprising:

at least one guide track extending along a section of the workbench and configured for allowing linear displacement of a work object along said guide track; at least one movable base configured to be accommodated, at least in part, inside said guide track and having a position locking mechanism, said at least one movable base having a fastening mechanism for releasably receiving said work object.

33. A workbench according to claim 32 wherein said work object is one of a clamping device, a work piece, a cutting tool, and a tool which applies force towards said workbench.

34. A workbench according to claim 32 wherein said position locking mechanism includes at least one set of interlocking teeth on a side of said base.

35. A workbench according to claim 34 wherein said side of said base is one of a lateral side relative to said at least one guide track and a perpendicular side relative to said at least one guide track.

36. A workbench according to claim 34 wherein said at least one guide track includes teeth along at least a portion of a length of said guide track for mating with said interlocking teeth on said base.

37. A workbench according to claim 34 wherein said at least one guide track has parallel walls.

38. A workbench according to claim 34 wherein said at least one guide track has a cross-section which is asymmetric around a bisecting vertical plane thereof.

39. A workbench according to claim 34 wherein said at least one guide track has a cross-section which is narrower at top than inside.

40. A workbench system according to any one of claims 34-39, wherein said movable base is removable from said guide track.

41. A method of using a workbench having a guide track, comprising:

(a) sliding a tool at least partially inserted in a guide track, along said guide track;

(b) releasing said tool to lock in place in said guide track;

(c) unlocking said tool using a human finger; and

(d) sliding said unlocked tool to a new location along said guide track.

42. A method according to claim 41, comprising sliding two tools along one or more guide tracks of said workbench, so as to clamp an object between them.

43. A clamping system comprising:

at least one guide track;

a first clamping device;

a second clamping device including a base having a position locking mechanism, said base configured to be accommodated, at least in part inside said at least one guide track; and

wherein said second clamping device is configured to move forward and backward along said at least one guide track towards said first clamping device, so as to clamp an object therebetween.

44. A clamping system according to claim 43, wherein said at least one guide track is integral with or mounted on a workbench.

45. A clamping system according to either one of claims 43 and 44, wherein said position locking mechanism is a spring loaded locking mechanism operable by a human finger and released to lock.

46. A clamping system according to claim 1, wherein said first clamping device is configured to press against an object in a preselected direction relative to said base.

47. A clamping system according to claim 46, wherein said preselected direction is perpendicular to said base.

48. A clamping system according to either one of claims 46 and 47, wherein said first clamping device includes a rotary pressing arm.

49. A clamping system according to claim 48, wherein said first clamping device includes a position locking mechanism for locking the position of said rotary pressing arm, said position locking mechanism having a stationary wheel, said wheel provided with at least one set of teeth circularly distributed thereabout.

50. A clamping system according to claim 49, further comprising a set of interlocking teeth configured to mate with said teeth on said wheel so as to prevent movement of said rotary pressing arm relative to said base.