CN1988988A - Worktable clamping and folding apparatus and methods for operating same - Google Patents

Abstract

The present invention relates to worktable clamping apparatus wherein an adjustable clamping jaw (1) is operable between an adjustable mode (allowing both forward and backward movement on a supporting frame (5) and a clamping mode whereby a work piece is clamped by opposing jaws (1, 9). The clamping mode is selectively effected by actuation of a clamping assembly (4, 6, 8; 4, 11, 13; 6, 16) which prevents backward movement of the adjustable clamping jaw away from the work piece to be clamped. The clamping mode is not effected automatically but is selectively effected by the user. The time taken to clamp a work piece is significantly reduced as compared to conventional clamping apparatus. In a further aspect of the invention, the clamping apparatus can be collapsed into a partially deployed state to allow the ''A'' frame structure to be used for alternative purposes. The components of the apparatus are adapted such that the apparatus can be quickly and easily folded into a more compact volume as compared to conventional foldable worktables.

Description

Workbench clamping and folding device and method of operating thereof

The present invention relates to workbench clamps and folding device, and especially but be not exclusively, relate to a kind of clamping device, the quick manual of the convenient a pair of jaw of this clamping device location is so that clamping work pieces, and/or conveniently carry out partially folded from complete deployed condition.The present invention also comprises the correlation method of carrying out described clamping and partially folded action.

Both form the tradition clamping table by rack-mount " fastening pawl " and " adjustable pawl ".Utilize two handles to move fastening pawl, each handle is associated with the end of fastening pawl.Each handle all is connected with screwed part, and when turning handle, this screwed part rotates in the nut part that is connected to fastening pawl downside, and fastening pawl is moved to adjustable pawl.The characteristic that is threaded means the mobile slowly inevitable of fastening pawl.On the contrary, adjustable pawl can be reorientated through longer distance more quickly than fastening pawl.

It below is the program of operation known pinch workbench clamping work pieces.At first, the user uses two hands, firmly grasps the relative side of adjustable pawl, it is broken away from from its position on support and moves, and is fixed in then on the selected location that separates with fastening pawl.The location of adjustable pawl is based on that the range estimation size of the workpiece that will clamp selects between each pawl.Then, the user uses a hand that workpiece is remained between the pawl, uses the hand of another free time at first to rotate a handle simultaneously, and then rotates the another handle, can be incorporated on the workpiece fully and securely till the clamping work pieces up to pawl.

Therefore, the adjustable pawl of traditional clamping table can be operated under two kinds of patterns: (i) shift mode, under this pattern, can move adjustable pawl forward or backward along the length of support; (ii) tighten mode under this pattern, stops adjustable pawl to move backward.On this traditional clamping table, the handle of fastening pawl and be associated step up screw thread fastened before, adjustable pawl is set at tighten mode (preparation tighten mode).

The user of this traditional clamping table will recognize and since screwed part pass fastening pawl downside nut move very slow, so usually need each handle of many revolution to come clamping work pieces.And, when fastening pawl in the zigzag mode gradually when the workpiece that will clamp advances, need two handles of alternate rotation repeatedly usually.

The tradition clamping table can be folded into folded state, thus convenient their storage and transportation.Yet the key character of clamping table is should be very firm when they are in the state that launches fully.In the effort of the double characteristic that satisfies foldability and robustness, the known pinch workbench needs complicated folding supporting construction, and this can increase the cost and the weight of device.In addition, this clamping table can not be folded into compact state usually, and the steadiness of their integral body can suffer damage.

According to a first aspect of the invention, provide a kind of Tischarretierungsvorrichtung that is used for releasedly (releasably) clamping work pieces, this device comprises support and first and second jaw that are installed on the described support; First jaw is selectively operation between adjustable mode and tighten mode; Adjustable mode allows to move forward and backward along support between any one and the clamped position of first jaw in a plurality of non-clamping positions, in non-clamping position, first with second jaw at least one separates with workpiece to be clamped, at clamped position, two jaws all mesh (engage) workpiece to be clamped; And wherein, tighten mode is implemented selectively by the action of clamp assembly, and it has prevented that first jaw from leaving workpiece to be clamped and moving backward.

Preferably, first jaw is suitable for sliding at its adjustable mode lower edge support.

In first embodiment, clamp assembly comprises clamp actuators, clamp actuators has integrally formed Lock Part, and clamp actuators can be moved selectively, thereby described Lock Part and first jaw are forced to connect into clamping engagement (clamping engagement).

Preferably, clamp assembly is defined by the mutual effect structure that is installed in respectively on integrally formed Lock Part and first jaw, thereby conveniently they is connected into clamp engagement.

Preferably, mutual effect structure is interlockable tooth.

Preferably, second jaw is in the position that is permanently fixed on the support, thereby is the passive components of described device during clamping action.

Preferably, clamp actuators is a rotatable part, along its at least partial-length be provided with screw thread.

Preferably, rotatable part can be received within the respective threaded that is provided with on its whole Lock Part threadably.

Preferably, rotatable part and whole Lock Part are adapted such that the frictional force between their co-operating screw threads is enough to make whole Lock Part and rotatable part optionally to rotate.

Preferably, clamp assembly is adapted such that in case whole Lock Part is rotated into structure on first jaw contacts, being further rotated of rotatable part overcomes described frictional force, and rotatable part rotates with respect to whole Lock Part, make whole Lock Part move axially, thereby described whole Lock Part and first jaw are connected into the clamping engagement along the screw thread of rotatable part.

Preferably, move axially on the direction parallel with support.

Preferably, the width of described interlockable teeth and the pitch of co-operating screw thread are selectable, make the week rotation at most completely of rotatable part be enough to whole Lock Part and first jaw are connected into the clamping engagement.

Alternatively, stop member is set on rotatable part, it can move to selectively as upper/lower positions, in this position, when the rotatable part reverse rotation, whole Lock Part of its friction engagement and support, thus make whole Lock Part and first jaw keep clamping engagement.

In second embodiment, clamp assembly comprises clamp actuators, and clamp actuators is related with independent Lock Part, and clamp actuators can be moved selectively, thereby described independent Lock Part and first jaw are forced to connect into the clamping engagement.

Preferably, clamp assembly by be installed in respectively on the independent Lock Part and first jaw on the mutual effect structure define, thereby conveniently they are connected into clamp engagement.

Preferably, mutual effect structure is the rough surface that is suitable for rubbing and connects.

Preferably, clamp action and be parallel to support and towards on second jaw, applying first side force on the direction of first jaw.

Preferably, second jaw can be moved into to touch with independent Lock Part and contact, further independent Lock Part and second jaw are respectively arranged with the mutual effect structure being in contact with one another of they on the position, make described first side force on second jaw be transformed into second vertical force on the independent Lock Part, clamp engagement so that itself and first jaw is forced to connect into.

Preferably, clamp actuators is a rotatable part, and it is threaded to small part.

Preferably, rotatable part can be received within second jaw threadably, and is suitable for making its selectable rotation to cause described first side force being parallel to support and moving axially second jaw on the direction of first jaw.

Preferably, the pitch of co-operating screw thread is selectable, makes the week rotation at most completely of rotatable part be enough to independent Lock Part and first jaw are forced to connect into the clamping engagement.

In the 3rd embodiment, clamp assembly comprises clamp actuators, clamp actuators and independent Lock Part indirect association, and clamp actuators can be moved selectively, thereby described independent Lock Part and support are forced to connect into the clamping engagement.

Preferably, the form of independent Lock Part is the ratchet (detent) on first jaw, described ratchet can be positioned on the support in the serrate slot in a plurality of separation point positions on any one, clamp assembly is defined by described ratchet and described serrate slot, thereby they are cooperated with each other and conveniently they are connected into separately clamp engagement.

Preferably, clamp action and be parallel to support and towards on second jaw, applying first side force on the direction of first jaw.

Preferably, second jaw can move in response to described first side force, makes described first side force be delivered to respectively on workpiece to be clamped and first jaw, and described first side force forces to connect into the clamping engagement with ratchet and support.

Preferably, clamp actuators is a rotatable part, and it is threaded to small part.

Preferably, rotatable part can be received within second jaw threadably, and is adapted such that its selectable rotation causes described first side force being parallel to support and moving axially second jaw on the direction of first jaw.

Preferably, the pitch of co-operating screw thread is selectable, makes the week rotation at most completely of rotatable part be enough to independent Lock Part and support are forced to connect into the clamping engagement.

Preferably, this device is provided with at least two to first and second clamp assembly, and each is on the different parallel portion that can be installed in described support.

According to a second aspect of the invention, the method that provides a kind of device that uses first aspect to come clamping work pieces, described method comprises the steps:

(i) utilize first hand manually to keep workpiece to be clamped, make this workpiece be supported against second jaw;

(ii) utilize second hand manually to move forward second jaw, make its mesh the workpiece that keeps by first hand, and apply manual confining force to described workpiece;

(iii) when utilizing second hand to keep manual confining force, remove first hand from workpiece; And

(iv), first jaw is placed tighten mode selectively by utilizing first hand manually to move clamp assembly.

In first embodiment, it is following enforcement that first jaw is placed the step of tighten mode selectively: by the integrally formed Lock Part of the clamp actuators of manual rotation and clamp assembly, thereby described Lock Part and first jaw are forced to connect into the clamping engagement.

In second and the 3rd embodiment, it is following enforcement that first jaw is placed the step of tighten mode selectively: by the clamp actuators of manual rotation clamp assembly, described clamp actuators is related with independent Lock Part, thereby described independent Lock Part and first jaw are forced to connect into the clamping engagement.

According to a third aspect of the present invention, a kind of workbench folding device is provided, comprise base component, first and second strut assemblies and support, first and second strut assemblies support described base component and can rotor rotatably (pivotably) be connected to described base component, support have can be mounted thereto jaw, described support can be connected to base component by rotor rotatably; Wherein this device is adapted such that it can operate between following state:

(i) complete deployed condition, under this state, each strut assemblies is spaced apart, and support horizontal orientation on base component;

(ii) part deployed condition, under this state, each strut assemblies is spaced apart, and support folds into the position under the base component; With

(iii) complete folded state, under this state, each strut assemblies and support put together so that the arrangement mode that is parallel to each other is overlapping.

Preferably, when this device is in it wholly or in part during deployed condition, the supported parts of strut assemblies strut.

Preferably, when this device was in its part deployed condition, support leaned against on one of strut assemblies.

Preferably, support can utilize biaxial hinge and rotor is connected to holding components rotatably.

Preferably, biaxial hinge is defined by linking arm, and an end rotor of linking arm is connected to base component rotatably, and other end rotor is connected to support rotatably.

Preferably, pivotally connected interval and the position that is connected with support are selectable, are in that its part is launched or during folding fully state, support can be folded to the position under the base component so that guarantee at this device.

Preferably, when this device was in its complete folded state, at least one strut assemblies was near the downside of jaw.

Preferably, one or more strut assemblies, base component and support are adapted such that they are placed in the state that bears tension force.

According to a fourth aspect of the present invention, provide the method for the folding device workbench of the 3rd aspect of a kind of use, described method comprises the steps:

(i) by the level orientation of support on its base component rotated to position under the base component around pivot, this device is transformed to its part deployed condition from its complete deployed condition; With

(ii) if desired, by around pivot swinging strut assembly, make that they are parallel to each other and wherein at least one changes to its complete folded state with this device from its part deployed condition near the downside of jaw.

Preferably, before its complete deployed condition transforms to the step of its part deployed condition, be to discharge Lock Part with this device, it is fixed on position on the base component with support.Now with reference to accompanying drawing, embodiments of the invention are described by way of example, wherein:

Fig. 1 is that schematic diagram is looked closely in the part of first embodiment, shows first rack-mount jaw, and shows clamp assembly and be in operating state, makes described jaw be in its adjustable mode;

Fig. 2 is and the similar end-view of Fig. 1, the figure shows clamp assembly and is in operating state, makes described jaw be in its tighten mode;

Fig. 3 is the partial side view that an end of the most close its action handle of toothholder plate is arranged;

Fig. 4 is the partial side views of clamping plate away from an end of its action handle;

Fig. 4 a is and the similar view of Fig. 3, the figure shows Lock Part piece 8a;

Fig. 5 is the side view that the tooth parts are arranged of first jaw;

Fig. 6 is the floor map that the tooth parts are arranged of Fig. 5, and it is in Fig. 3 forces to be connected centre position before with 4 the toothholder plate that has;

Fig. 7 is the floor map that the tooth parts are arranged of Fig. 5, thus this moment it with have toothholder plate pressure to be connected first jaw is placed as shown in Figure 2 tighten mode;

Fig. 8 is the local schematic side view of second embodiment, shows first and second jaw on difference on the left side and the right, and this device is in the downside of Lock Part and first jaw forces to be connected centre position before;

Fig. 9 is and the similar view of Fig. 8, the figure shows Lock Part, thereby it connected into friction engagement with the downside pressure of first jaw first jaw was placed its tighten mode this moment;

Figure 10 be implement to connect before the partial view of Fig. 8 and 9 Lock Part end;

Figure 11 is a partial view of implementing to connect Lock Part end afterwards shown in Figure 10;

Figure 12 is the local schematic side view of the 3rd embodiment, shows first and second jaw on difference on the left side and the right, and the ratchet that this device is on first jaw forces to be connected centre position before with support;

Figure 13 is and the similar view of Figure 12 the figure shows ratchet, thereby this moment, it to force to be connected first jaw is placed its tighten mode with the serrate slot in the supporting construction;

Figure 14 is the partial plan layout of the serrate slot of support shown in Figure 12 and 13;

Figure 15 is the plane of first jaw, moves along the manually level and smooth of support thereby this jaw has the convenient jaw of twin shaft;

Figure 16 is the schematic side view of first jaw of Figure 15;

Figure 17 is the side view of clamping table when being in its complete deployed condition;

Figure 18 is the side view of clamping table when being in its part deployed condition, the figure shows the device when being used for other purposes;

Figure 19 is the side view of clamping table when being in its complete folded state;

Figure 20 shows partial cross section's front view of the architectural feature of strut assemblies bottom;

Figure 21 shows the partial side view in cross section of further architectural feature of the strut assemblies bottom of Figure 20;

Figure 22 is the front view of base component and strut assemblies, the figure shows the bowed shape of pillar;

Figure 23 shows partial cross section's front view of the connecting portion of base component and pillar;

Figure 24 shows the partial side view in cross section of the connecting portion of two pillars under the base component;

Figure 25 shows the partial side view that is connected that is in support and base component before the latched position; With

Figure 26 is and the similar view of Figure 25, the figure shows being connected of support and base component when being in latched position.

Fig. 1-7 has described the preferred embodiment of Tischarretierungsvorrichtung.Fig. 1 shows and utilizes bolt member 3 to be installed in first jaw 1 (hereinafter referred to as " adjustable pawl ") on the jaw support member 2.The bar of bolt member 3 upwards and pass groove 5a from central authorities and extend, groove 5a is that the upper surface along support 5 forms, the edge of described bar and described groove 5a leaves the interval.The size of the flange head 4 of bolt member 3 makes that greater than groove 5a it can mesh the downside of support 5 when bolt member 3 is fixed to jaw support member 2 to jaw 1.

The side of jaw support member 2 extends across the shoulder of support 5, gives its provider to guiding thereon when sliding with the adjustable pawl 1 of box lunch.Because the bolt member 3 that is positioned at central authorities does not contact the side of groove 5a, so the guiding of jaw bearing 2 does not rely on bolt member 3.

Be generally columniform rotatable part 6 and be positioned under the support 5, and under the flange head 4 of bolt member 3, extend, to small part rotatable part 6 are threaded (referring to Fig. 4).Rotatable part is received within the screw thread of complementation of nut part 7 threadably, nut part 7 and Lock Part 8 whole formation.Screw thread has the pitch of about 5mm.

Rotatable part 6 always is engaged within the nut part 7 of Lock Part 8 threadably, thereby can regard Lock Part 8 as with rotatable part 6 integrally formed.

Lock Part 8 is to utilize the holding components 7a of nut part 7 and similar nut to be co-axially mounted on the rotatable part 6, and described parts 7,7a are positioned at the opposing ends of Lock Part 8.The cross section of the holding components 7a of similar nut has square outer shape (as illustrated in fig. 1 and 2) usually, and integrally is connected to nut part 7 via two vertically arranged sidewalls.Yet the holding components 7a of similar nut needs not to be threaded, because the screw thread of nut part 7 is enough to allow the operation of Lock Part 8.

The rotatable part 6 that has only fraction length need be threaded, surpasses about 10mm because whole Lock Part can never move axially, and below will describe its reason in detail.

As illustrated in fig. 1 and 2, the vertically arranged sidewall cross section of whole Lock Part 8 is " L " shapes.Shown in Fig. 3 and 4, whole Lock Part be provided with crenellation or the class toothing of a series of about 5mm in interval to top edge.Spring clip 9 stretches in a circumferential direction around rotatable part 6, and the one end is connected to whole Lock Part 8.Spring clip 9 is biased to and part rotatable part 6 friction engagement.

Fig. 4 a shows the optional feature of preferred embodiment, and the accurate location of the convenient adjustable pawl 1 of this feature is aimed at the respective edges of second jaw (not shown) is exactly parallel so that guarantee its leading edge.When jaw was used for guiding power tool on workpiece, this aligning was necessary.Managing to make in the process of workpiece alignment, the user incites somebody to action clockwise intuitively and/or is rotated counterclockwise the handle (not shown).Yet under the situation that lacks the device shown in Fig. 4 a, being rotated counterclockwise of handle may cause that whole Lock Part 8 and flange head 4 break away from.Under worse situation, may this disengaging when guiding power tool, jaw take place on the workpiece.

Lock Part piece 8a is around the assembling of rotatable part 6 ring-types, and can between the primary importance (by the dotted line indication) and the second place, move, in primary importance, Lock Part piece 8a separates with whole Lock Part 8, in the second place, the external flange partial frictional meshes the top of the crenellation or the class toothing of whole Lock Part.

Fig. 5 illustrates the side view of bolt 3 separately.The flange head 4 of bolt 3 also is provided with crenellation or class toothing, is positioned in the face of the complementary crenellation that is provided with on top edge of Lock Part 8 or the lateral edges of class toothing.Equally, the about 5mm in their intervals.Lock Part 8 and flange head 4 define the clamp assembly of this device together.

Flange head 4 also is provided with the protruding 4a that height comes out, and protruding 4a on the direction parallel with the longitudinal axis of the bar of bolt member 3, extends about 0.5mm from the leading edge of flange head 4 on the basic plane of flange head 4.The protruding 4a that height comes out extends to the downside of as shown in phantom in Figure 5 support 5, but with its separation.

Equally on the direction parallel with the longitudinal axis of the bar of bolt member 3, columnar part 4b extends from its trailing edge on the basic plane of flange head 4.The groove 5a that columnar part 4b passes on the support 5 extends, and extends into jaw support member 2, therefore benefits from the direction guiding on the support shoulder, thereby makes flange head 4 keep accurately aiming at the lasting of groove 5a.

Fig. 6 and Fig. 7 show the plane of two positions that Lock Part 8 is positioned at the flange head 4 of relative bolt member 3.Particularly, be presented at each crenellation or the class toothing that form on Lock Part 8 and the flange head 4 among the figure and be in first relative position and second relative position respectively, at first relative position, they are just contact each other, at second relative position, and their interlockings.Below describe the operation of clamping device in detail.

In use, adjustable pawl 1 can manually slide along support 5, thereby allows between it and second fixed claw (not shown among Fig. 1-7) optionally clamping work pieces.Therefore, adjustable pawl 1 can be operated between " adjustable mode " and " tighten mode ", and it can freely slide so that adapt to the size of workpiece to be clamped under adjustable mode, prevents to leave moving backward of workpiece to be clamped under tighten mode.

By the action clamp assembly, manually the turning handle (not shown) rotates or tightens up rotatable part 6 in a clockwise direction, and adjustable pawl 1 is converted to its tighten mode (as shown in Figure 2) from its adjustable mode (as shown in Figure 1).When rotatable part 6 is rotated, owing to have frictional force between each parts, so also rotation thereupon of nut part 7.Spring clip 9 (as shown in Figure 4) helps those frictional force, and guarantees the level and smooth rotation of whole Lock Part 8 and rotatable part 6.

In case crenellation on the whole Lock Part 8 or class toothing rotate to complementary structure on the flange head 4 and contact (shown in arrow among Fig. 6 1), being further rotated of whole Lock Part 8 is prevented from.Yet rotatable part 6 continues rotation and overcomes frictional force between it and the nut part 7, makes rotatable part 6 with respect to nut part 7 rotations.In the process of so carrying out, nut member 7 and whole Lock Part 8 along the threaded portion of rotatable part by axially pulling forward (on the direction of as shown in Figure 7 arrow 2).

Be drawn forward when moving at whole Lock Part 8, the flange head 4 of bolt member 3 remains on resting position.The position of flange head 4 is determined by the width of the workpiece that will clamp between the adjustable pawl 1 and the second fixed claw (not shown).Owing to there is such fact, promptly the user supports adjustable pawl 1 and is close to workpiece and remains on confining force on the direction of second fixed claw, makes this position remain unchanged.

At this moment, thereby, confining force allow workpiece between each pawl, to drop, so adjustable pawl is not in tighten mode as yet because can being removed and/or being reversed.

As shown in Figure 7, when the crenellation of whole Lock Part 8 when axial advancement is to the position of the complementary gap alignment between the crenellation of they and flange head 4, recovered the friction engagement between whole Lock Part 8 and the rotatable part 6.Therefore, whole Lock Part 8 recovers the rotation (indicated as arrow 3) that it and rotatable part 6 are cooperated with each other.In the process of carrying out like this, each crenellation or class toothing mesh together with interlock mode.

Being further rotated of rotatable part 6 overcomes the frictional force between it and the nut part 7 once more, make nut part 7 and thereby whole Lock Part 8 strain forward, as arrow 4 indications.It is mobile that the moving forward of whole Lock Part 8 is transformed into holding out against forward of adjustable pawl, thereby occupy the residue space between it and the workpiece.In the process of so carrying out, adjustable pawl 1 is converted to its tighten mode from its adjustable mode.

Crenellation on the whole Lock Part 8 or class toothing have determined adjustable pawl 1 is placed the required rotation number of degrees of tighten mode with respect to the initial position of crenellation on the flange head 4 or class toothing.Therefore, tighten mode can be counted as " delay tighten mode " (hereinafter referred to as DCM), and this pattern can be implemented selectively by the action clamp assembly.

The width of supposing each crenellation or class toothing is about 5mm, therefore holding out against forward of adjustable pawl move can carry out before, the range of whole Lock Part 8 is about 10mm.This can utilize the rotatable part 6 of two screw thread (twin threaded) 5mm pitch, finishing within the revolution approximately completely of handle.

Can recognize from the above description, in the preferred embodiment shown in Fig. 1-7, because adjustable pawl 1 can also serve as fastening pawl (being fixed on aforesaid locational second jaw), so adjustable pawl 1 is the jaw with dual-use function.

In order to discharge caught workpiece, be rotated counterclockwise handle, the frictional force between rotatable part 6 and the nut part 7 can cause whole Lock Part 8 to move to position shown in Figure 1 from position shown in Figure 2 immediately.Therefore, but from the adjustable mode to the tighten mode and from the transformation that tighten mode is got back to shift mode be rotational automatic enforcement by rotatable part 6.At operator's this respect, any parts of adjustable claw assembly or part all need not to revise or adjust.

Although only show an end of the adjustable pawl 1 of dual-use function, yet people will recognize that the other end will be installed on the parallel support, and each end is all by the control of above-mentioned DCM system.

As mentioned above, when rotatable part 6 was rotated counterclockwise, if the user attempts to adjust the aligning of jaw unintentionally, just discharging immediately of whole Lock Part may become potential problem.Yet, by making Lock Part piece 8a slide and whole Lock Part 8 friction engagement, even when thereby rotatable part is rotated counterclockwise the position of adjusting a jaw, each crenellation or the class toothing of whole Lock Part 8 and flange head 4 still remain on their position engaged.Therefore, in these cases, Lock Part piece 8a serves as fail-safe mechanism.

Fig. 8-11 shows the alternative embodiment of Tischarretierungsvorrichtung.Fig. 8 is the partial side view of adjustable pawl 1, and adjustable pawl 1 is connected to jaw support member 2 by bolt member 3, and bolt member 3 has the flange head 4 that is positioned under the support 5.The downside of flange head 4 has coarse or veined appearance, thereby strengthens the ability of itself and independent Lock Part 13 friction engagement, below will describe in detail.

Second jaw 9 (hereinafter referred to as " fastening pawl ") is connected to the jaw support member by bolt member 10 and moulding (profiled) bolt head 11.Moulding bolt head 11 has forward direction projection 11b, makes it have as shown in Figure 8 " L " shape cross section.Forward direction projection 11b has cam profile at its leading top edge, below will describe its purposes in detail.

That side relative with forward direction projection 11b at moulding bolt head 11 forms screwed hole 11a.Screwed hole is admitted rotatable part 6 threadably, and rotatable part 6 has the threaded end away from its turning handle (not shown).

Why being called independent Lock Part 13, is because it separates with all parts of adjustable pawl 1 and fastening pawl 9 or be independent.Independent Lock Part is positioned under the flange head 4 of support 5 and bolt member 3.The upper surface of independent Lock Part 13 (that is, with flange head 4 facing surfaces) is provided with coarse or veined appearance, so that the ability of the downside friction engagement of enhancing and flange head 4, as mentioned above.Independent Lock Part 13 and flange head 4 define the clamp assembly of this device jointly.

The recess of independent Lock Part 13 is admitted the forward direction projection 11b of moulding bolt head 11, and its upper surface is provided with complementary cam profile.As what can see in Fig. 8 and 9, forward direction projection 11b is used to support the end of independent Lock Part 13.

Figure 10 and 11 shows the partial view of the opposing ends of the independent Lock Part 13 that is in the clamping and non-clamping position.Dual-axis pivot turning arm 14a is connected to back seat 14 with independent Lock Part 13, and back seat 14 self is connected to the end of support 5.Below describe the importance of the twin shaft of pivot turning arm 14a in detail.

In the use, adjustable pawl 1 can be taked the above described mode of first preferred embodiment with reference to Fig. 1-7, manually slides on support 5.Can clearly be seen that from Fig. 8 the downside of flange head 4 separates with the upper surface of independent Lock Part 13, so that allow adjustable pawl 1 can on support 5, freely move under its adjustable mode.

Fig. 9 shows the change in location that independent Lock Part 13 produces in response to the action of clamp assembly.Make rotatable part 6 rotation counterclockwise within screwed hole 11a by the turning handle (not shown), and the action clamp assembly.This causes moulded head 11 that fastening pawl 9 is moved to workpiece 12, makes a side (just as will be described in detail, utilize adjustable pawl 1, mesh the opposite side of workpiece 12 by Manual pressure) of its top tight workpiece 12.

Holding out against action is pushed rearward (as shown in Fig. 8 and 9, from right to left) fastening pawl 9, workpiece 12 and adjustable pawl 1.The distance that all three parts move is backward limited (as shown in Figure 9) by the engagement between the cam face of the cam face of the forward direction projection 11b of moulded head 11 and independent Lock Part 13.

Forward direction projection 11b moves (promptly moving to position shown in Figure 9 from position shown in Figure 8) to the rear wall of the recess that forms in independent Lock Part, the relative engagement of the cam face independent Lock Part 13 of can boosting, thus make the coarse downside friction engagement of its coarse upper surface and flange head 4.When being in position shown in Figure 9, adjustable pawl 1 is placed in its tighten mode, thereby it is mobile backward to prevent that it from leaving workpiece to be clamped.Fastening pawl 9 continues to hold out against mobile so that occupy any residue space between it and the workpiece 12, thereby between each jaw 1,9 clamping work pieces 12 securely.Therefore, tighten mode can be regarded as " delay tighten mode " (hereinafter referred to as DCM), this pattern is to implement selectively by the action of clamp assembly.

When the forward direction projection 11b of fastening pawl 9 meshes the rear wall of recess of independent Lock Part 13, cause that independent Lock Part 13 moves (promptly from position shown in Figure 10 to position shown in Figure 11) from right to left slightly.In fact, make and accurately to duplicate this moving in its opposing ends by the first terminal upwards and when mobile backward of independent Lock Part 13 when forward direction projection 11b advances.By using aforesaid dual-axis pivot turning arm 14a can allow upwards and mobile backward duplicating.

About above-mentioned preferred embodiment, rotatable part need be less than the linear displacement of 10mm and come clamping work pieces 12 firmly, and uses the suitable screw thread of pitch, can finish above-mentioned displacement by the single revolution of each handle.

Figure 12-14 has described another alternative embodiment of Tischarretierungsvorrichtung.Figure 12 shows between adjustable pawl 1 and fastening pawl 9, to be similar to the workpiece that the above mode of describing with reference to Fig. 8-11 clamps.

Fastening pawl 9 utilizes bolt member 10 to be connected to jaw support member 10a, and is installed on the support 5, and bolt member 10 extends through the groove 20 (referring to Figure 14) that forms in support 5.Flange head 11 sizes of bolt member 10 are greater than groove 20, thereby are used to make fastening pawl 9 to remain on the support 5.The handle (not shown) is connected to the threaded rotatable part 6 of part, and it can be received within the flange head 11 threadably.

Being connected of adjustable pawl 1 and support is identical with the content of describing about the foregoing description.Yet the thickness of flange head 4 reduces on the direction of leaving the protruding 4a that its height comes out gradually.The purposes of this wedge profile below will be described.

Independent Lock Part 16 connects rotatably around pivot 17 rotors, and pivot 17 is located within the recess that the downside of adjustable pawl 1 forms (shown in the dotted line among Figure 12).Independent Lock Part 16 is normally leg-of-mutton, and utilizes torsionspring 18 with its downward propelling, makes its sharp-pointed drift angle mesh support 5.

Figure 14 is the partial plan layout of support 5, the figure shows improved groove 19, and the bar of bolt member 3 extends through and improves groove 19.The flange head 4 of wedge shape is positioned under the groove 19.Improve groove 19 and separate, and improvement groove 19 is provided with the crenellation at rule interval or the side channel 5a of class toothing form with above-mentioned regular groove 20.

In use, utilize the shape and the orientation of independent Lock Part 16, it is possible making adjustable pawl 1 move forward (i.e. moving from left to right shown in Figure 12 and 13).When independent Lock Part 16 slipped over crenellation and be pushed downwards among subsequently the side channel 5a, the moving can not hinder further of the top corner portion of independent Lock Part 16 moved forward, because top corner portion is not stopped by subsequently crenellation.

Should be noted that in Figure 12 adjustable pawl 1 is not in tighten mode as yet,, and still can turn forward, make independent Lock Part 16 and support 5 break away from, and move to the direction of leaving workpiece because it still can be pushed rearward moving several millimeters.

In Figure 13, dotted line 2a is illustrated in the clamp assembly action initial position of jaw support member 2 before.When moving clamp assembly by rotation rotatable part 6, fastening pawl 9 moves forward, so that impel workpiece and adjustable pawl 1 to move (as shown in figure 12 from right to left promptly) backward.The scope of Yi Donging is limited by the interval of side channel 5a backward.

During adjustable pawl 1 moved backward, the top corner portion of independent Lock Part 16 entered among the groove 5a fully.In this position, the trailing edge of independent Lock Part 16 withstands the side of crenellation just, moves backward thereby stop further.Because fastening pawl 9 is further compressed, so workpiece applies active force to adjustable pawl.So adjustable pawl 1 is converted to its tighten mode from its adjustable mode, under tighten mode, it can not slide backward again, can not turn forward, because existence is imposed on its power via workpiece by fastening pawl 9.Have only when making fastening pawl 9 mobile backward by turning clockwise of handle, adjustable pawl 1 can be discharged from its tighten mode, and put and get back to its adjustable mode.The inclined upper surface of flange head 4 (only shown in Figure 12) allows the adjustable pawl 1 bigger number of degrees that turn forward, so that will shift out groove 19 by the top corner portion of the independent Lock Part 16 of spring-advance, thereby allows it to slide off fastening pawl 9.

At this embodiment and in previous embodiment, by handle rotate rotatable part 6 can direct mobile Lock Part adjustable pawl 1 is placed tighten mode (just as the embodiment shown in Fig. 1-7).What replace is, the holding out against to move of fastening pawl 9 advances into tighten mode with adjustable pawl 1 indirectly.Therefore, tighten mode can be regarded as " delay tighten mode " (hereinafter referred to as DCM), this pattern is to implement selectively by the action of clamp assembly.

In the variation (not shown) of current embodiment,, just can operate independent Lock Part 16 simultaneously by a hand if independent Lock Part 16 is mechanically coupled together by the bar that passes adjustable pawl rear portion.In this way, on workpiece being remained against described fastening pawl in, second remaining idle hand comes turning handle, wherein said fastening pawl is shifted workpiece and adjustable pawl onto go forward one by one groove 5a, so described embodiment just satisfies whole standards of DCM system.

Figure 15 and 16 shows the plane and the schematic side view of jaw rotation fixture 21 respectively, and jaw rotation fixture 21 rotates around bolt shaft 3 pivots, and second axle point 22 is provided, and jaw can be around this axle point rotation.Provide jaw to rotate hand of convenient usefulness adjustable pawl 1 is carried out more level and smooth manual adjustment.

In the process of any one described Tischarretierungsvorrichtung, the operator should carry out following program in using above three embodiment.At first, manually keep workpiece to be clamped, so that its support is leaned against on the fastening pawl 9 of the fixed claw of preferred embodiment or second or the 3rd embodiment with first hand.Then, the operator uses the hand of second free time to come mobile adjustable jaw 1, makes its mesh the workpiece that is kept by first hand, and applies manual confining force to workpiece.This manual confining force allows to remove first hand from workpiece when keeping manual confining force with second hand.Then, by directly (first embodiment) or (second or the 3rd embodiment) mobile whole Lock Part (first embodiment) or independent Lock Part (second or the 3rd embodiment) indirectly, manually move clamp assembly, so that use first hand that adjustable jaw 1 is placed tighten mode.

For the technical staff in Tischarretierungsvorrichtung field, advantage of the present invention is conspicuous.Specifically, manually to the adjustable pawl of front slide so that workpiece is remained against another to be fixed/fastening pawl on, it needs an about second.And, use suitable pitch, the single revolution (rotating weekly about 1.5 seconds) that is connected to each handle on the rotatable part is enough to firmly clamping work pieces and adjustable pawl 1 is placed tighten mode.Whole clamp operation is more smooth and easy and easier, and owing to need about 4 seconds altogether, compared to the fast 2-4 of comparable clamping system doubly.

Figure 17-26 describes workbench folding device of the present invention.Figure 17 shows the device that is in its complete deployed condition, base component 1 ' wherein by the strut assemblies 4 ' support of rotor rotary folding, base component 1 ' the have upper surface of substantially flat, strut assemblies 4 ' on horizontal support the clamping device that is in standby position.This clamping device comprise jaw support member 5 ', jaw 6 ' and clamping lever 7 ', its with the mode of describing in detail previously be installed in support 3 ' on.Support 3 ' be supported on base component 1 ' flat upper surfaces on, and utilize the biaxial hinge rotor to be connected thereto rotatably.Biaxial hinge is by linking arm 2 ' define, and linking arm 2 ' rotor is connected to base component rotatably at pivot point of rotation 2a place, and is connected to support 3 ' (all pointing out) rotatably at a 2b place rotor in Figure 18.

Figure 18 shows the device that carries out the Figure 17 after the following operation: its support 3 ' around two pivot point of rotation 2a and 2b rotation, make base component 1 ' under the position, jaw 6 ' downside be placed on strut assemblies 4 ' one of on.The initial position of pivot point of rotation 2b is by " X " mark in the drawings, and shows it and move to the arc of part expanded position.

Linking arm 2 ' pivot point of rotation 2a and the interval of 2b and pivot point of rotation 2b and support 3 ' tie point determine the position of support 3 ' when its folded state jointly.At the part expanded position, jaw 6 ' be inoperable, yet, by the base component 1 of the strut assemblies 4 ' support that launches ' can be used for other purposes.In described non-limiting example, log holding components 8 ' by bolt 8a be fixed to base component 1 ' on, make log W can be supported on suitable height so that sawmilling.

Figure 19 illustrates the Figure 17 that is in its complete folded state and 18 device.At this complete folded state, two strut assemblies 4 ' all overlapping fully be placed on by jaw 6 ' downside and jaw support member 5 ' and support 3 ' the volume that defines of inboard within.In this way, workbench can be folded into 50% the cumulative volume that is approximately the conventional table device volume.

Figure 20 and 21 shows the partial cross section's front view and the side view of strut assemblies 4 ' bottom respectively.Strut assemblies 4 ' comprise two setting pillars, they pass through cross bar 13 ' connection (as shown in figure 22) near its lower end.This part strut assemblies 4 ' structurally very important, therefore with " L " shape steel core 9 ' strengthen, steel core 9 ' have molded plastics covering 9a.With erect pillar be connected to cross bar 13 ' the bottom be provided be installed in the pillar insertion parts 11 erect within the pillar ' and be installed in cross bar 13 ' within cylinder insertion parts 12 '.

Figure 22 show strut assemblies 4 ' front view, two setting pillars of strut assemblies 4 ' comprise, its near their lower ends by cross bar 13 ' connection.Strut assemblies 4 ' three parts by a left side and right bottom corner joint 10 ' be connected.Erect pillar also their upper extremity, between shoulder parts 1a, be connected to base component 1 '.Shoulder parts 1a is separated out, and in its relative end from base component 1 ' downside extend downwards.

The interval of shoulder parts 1a is less than the interval of each bottom corner joint a little, make to erect pillar and is inwardly promoted being arch or arc (by among Figure 22 shown in the dotted line), and be maintained between the side of relative shoulder parts 1a and bear tension force.Be positioned at each strengthening part 9 of erectting the lower end of pillar ', 9a ', 11 ', 12 ' (as mentioned above) serves as stationary anchor points, is used for supporting in this way their tensioning.Compare without any the pillar that tensioning ground is installed with adopting traditional straight mode, described tensioning provides minimizing of rigidity with enhancing and move left and right to this device.

Figure 23 show erect pillar base component 1 ' downside installation region 14 '.Installation region 14 ' base component 1 ' under spaced apart with suitable distance (as mentioned above), and become suitable angle to erect pillar to admit, erect that pillar is inwardly promoted this moment and install bearing under the state of tension force.The hollow structure of the similar case of each shoulder parts 1a is used to strengthen the overall stiffness and the intensity of this device.Erect pillar and shoulder parts 1a and base component 1 ' the tie point place other enhancing feature is provided.For example, steel core part 15 ' extend through the end of going up of erectting pillar from central authorities, and centered on by plastic mould 15a.Installation region 14 ' in, two parts all are inserted into to be erect in the pillar, and utilizes pin 15b and bolt 16 ' be connected on the shoulder parts 1a.

Figure 24 show each steel core part 15 of erectting pillar ' side view, this moment, strut assemblies was in their expanded position.Utilize pin 15b that steel core part 15 ' be installed to is erect on the pillar, and utilize bolt 16 ' be installed to base component 1 ' shoulder parts 1a on.Erect pillar by folding support component 17 ' strut.

Steel core part 15 ' be formed makes when strut assemblies is launched fully, and their side end is to base component 1 ' applied thrust, so as with to the similar mode of aforesaid way about the setting pillar, be placed under the tension force of similar bow.This layout be used to minimize device strut assemblies 4 ' on move forward and backward or rock.

Figure 25 and 26 show be in be fixed under the complete deployed condition before with afterwards support 3 ' with base component 1 ' be connected.Be connected to support 3 ' on grab retaining (catch) parts 18 ' engages base parts 1 ' first side, it has the box-frame structure 1b that is used to gain in strength.When support 3 ' when being fixed on the appropriate location, the cushion 19 on support 3 ' downside ' drop to base component 1 ' on.

The engages base parts 1 of Lock Part 20 ' selectively ' second side, Lock Part 20 ' can be, and can be by safety catch member 21 ' with respect to support 3 ' remain on appropriate location in the rotation of support 3 ' head lamp brush guard pivot.Safe catch member 21 ' can be received within support 3 ' groove in, thereby avoid making unintentionally Lock Part 20 ' with base component 1 ' disengaging.

When support 3 ' be forced to and base component 1 ' engagement, a large amount of manual power via Lock Part 20 ' be applied to support 3 ' on.Therefore, support 3 ' also be placed under the tension force of similar bow.Support 3 ' and base component 1 ' the combination tensioning help to minimize support 3 ' base component 1 ' on the trend of rocking.

In use, can between three kinds of settings, handle the workbench folding device.When launching fully, two strut assemblies 4 ' the pivot rotation separates each other, and utilizes support component 17 ' strut " A " shape.In the process of so carrying out, be positioned at erect steel core part 15 ' engages base parts 1 terminal on the pillar ', and be placed under the tension force.Support 3 ' be positioned at base component 1 ' flat upper surfaces on, and utilize Lock Part 20 ' be fixed to the upper bearing under the state of tension force.

If the user wishes to use " A " shape structure, be used for removing the purposes the support clamping device, can make this device be in its part deployed condition on support 3 ' fold up.This can be by discharging safe catch member 21 ' and Lock Part 20 ' and pivot runing rest 3 ' realize that arc as shown in Figure 18 is indicated.

Support 3 ' pivoting movement around two pivot point of rotation 2a (counterclockwise) and pivot point of rotation 2b (clockwise) pivot rotation simultaneously, till it and strut assemblies 4 ' substantially parallel and overlapping are placed thereon, as shown in figure 18.

When this device is folding fully, strut assemblies 4 ' " A " shape arrange and be folded, make the substantially parallel layout of two strut assemblies 4 ' be in.This allow overlapping be positioned over strut assemblies 4 ' one of on support 3 ' continuations its around two pivot point of rotation 2a and 2b the time pivot rotate, up to it also with two strut assemblies 4 ' parallel till.Jaw 6 ' downside and strut assemblies 4 ' one of adjacency so that minimize the cumulative volume of this device when this device is in its complete folded state, thereby be convenient to store and/or transportation.

For the user of collapsible workbench, the lot of advantages of folding device of the present invention is conspicuous.The present invention not only provides and has had the seldom simple and effective folded configuration of movable part, and has improved the each several part of this device, makes them can be folded into very little cumulative volume.

The important benefits of this device is its multifunctionality, so it can be used in many other purposes except that clamping.

And, when being in it wholly or in part during deployed condition, erect pillar 4 ', base component 1 ' and support 3 ' on the various tensionings configurations that are provided with mean that in use table device is highly stable.

Can make the foregoing description and revise and improve, and not deviate from scope of the present invention.For example, though described three kinds of ad hoc structures realizing DCM, do not get rid of other mechanical equivalents certainly.

Claims (44)

1. one kind is used for the Tischarretierungsvorrichtung of clamping work pieces releasedly, and this device comprises support and first and second jaw that can be installed on the described support; Described first jaw is selectively operation between adjustable mode and tighten mode; Described adjustable mode allows to move forward and backward along described support between any one and the clamped position of described first jaw in a plurality of non-clamping positions, in described non-clamping position, at least one and described workpiece separation to be clamped in described first and second jaw, and at described clamped position, two jaws all mesh described workpiece to be clamped; And wherein, described tighten mode is implemented selectively by the action of clamp assembly, and this has prevented that described first jaw from leaving described workpiece to be clamped and moving backward.

2. Tischarretierungsvorrichtung as claimed in claim 1, wherein said first jaw are suitable at its described support in adjustable mode lower edge slidably.

3. Tischarretierungsvorrichtung as claimed in claim 1 or 2, wherein said clamp assembly comprises clamp actuators, described clamp actuators has integrally formed Lock Part, described clamp actuators is selectively moved, thereby described Lock Part and described first jaw are forced to connect into the clamping engagement.

4. Tischarretierungsvorrichtung as claimed in claim 3, wherein said clamp assembly is defined by the mutual effect structure that is separately positioned on described integrally formed Lock Part and described first jaw, thereby conveniently they is connected into clamp engagement.

5. Tischarretierungsvorrichtung as claimed in claim 4, wherein mutual effect structure are interlockable teeth.

6. as any one described Tischarretierungsvorrichtung in the claim 3 to 5, wherein said second jaw is in the position that is permanently fixed on the described support, thereby is the passive components of this device during clamping action.

7. as any one described Tischarretierungsvorrichtung in the claim 3 to 6, wherein said clamp actuators is a rotatable part, along its at least partial-length be provided with screw thread.

8. Tischarretierungsvorrichtung as claimed in claim 7, wherein said rotatable part can be received within the respective threaded that is provided with on its whole Lock Part threadably.

9. as claim 7 or 8 described Tischarretierungsvorrichtungs, wherein said rotatable part and described whole Lock Part are adapted such that the frictional force between their co-operating screw threads is enough to make described whole Lock Part to rotate selectively with described rotatable part.

10. Tischarretierungsvorrichtung as claimed in claim 9, wherein said clamp assembly is adapted such that in case described whole Lock Part is rotated into described structure on described first jaw contacts, being further rotated of described rotatable part overcomes described frictional force, and described rotatable part is with respect to described whole Lock Part rotation, cause described whole Lock Part to move axially, so that described whole Lock Part and described first jaw are connected into the clamping engagement along the described screw thread of described rotatable part.

11. Tischarretierungsvorrichtung as claimed in claim 10, wherein said moving axially on the direction parallel with described support.

12. as being subordinated to any one described Tischarretierungsvorrichtung of claim 5 in the claim 8 to 11, the width of the tooth of wherein said interlocking and the pitch of co-operating screw thread are selectable, make the week rotation at most completely of described rotatable part be enough to described whole Lock Part and described first jaw are connected into the clamping engagement.

13. Tischarretierungsvorrichtung as claimed in claim 10, wherein stop member is arranged on the described rotatable part, it selectively moves to as upper/lower positions, in this position, when described rotatable part reverse rotation, described whole Lock Part of its friction engagement and described support are so that described whole Lock Part and described first jaw keep clamping engagement.

14. Tischarretierungsvorrichtung as claimed in claim 1 or 2, wherein said clamp assembly comprises clamp actuators, described clamp actuators is related with independent Lock Part, described clamp actuators is selectively moved, so that described independent Lock Part and described first jaw are forced to connect into the clamping engagement.

15. Tischarretierungsvorrichtung as claimed in claim 14, wherein said clamp assembly by be separately positioned on the described independent Lock Part and described first jaw on the mutual effect structure define, they are connected into clamp engagement with convenient.

16. Tischarretierungsvorrichtung as claimed in claim 15, wherein said mutual effect structure are to be suitable for allowing the rough surface that rubs and connect.

17. as any one described Tischarretierungsvorrichtung in the claim 14 to 16, wherein said clamping action is being parallel to described support and towards applying first side force on the direction of described first jaw on described second jaw.

18. as any one described Tischarretierungsvorrichtung in the claim 14 to 17, wherein said second jaw may be moved into to touch with described independent Lock Part and contacts, further described independent Lock Part and described second jaw are respectively arranged with the mutual effect structure being in contact with one another of they on the position, make described first side force on described second jaw be transformed into second vertical force on the described independent Lock Part, clamp engagement so that itself and described first jaw are forced to connect into.

19. as any one described Tischarretierungsvorrichtung in the claim 14 to 18, wherein said clamp actuators is a rotatable part, it is threaded to small part.

20. described Tischarretierungsvorrichtung when being subordinated to claim 17 as claim 19, wherein said rotatable part can be received within described second jaw threadably, and is suitable for making its selectable rotation to cause described first side force being parallel to described support and moving axially described second jaw on the direction of described first jaw.

21. Tischarretierungsvorrichtung as claimed in claim 20, the pitch of wherein said co-operating screw thread is selectable, makes that rotating completely in maximum weeks of described rotatable part is enough to described independent Lock Part and described first jaw are forced to connect into the clamping engagement.

22. Tischarretierungsvorrichtung as claimed in claim 1 or 2, wherein said clamp assembly comprises clamp actuators, described clamp actuators and independent Lock Part indirect association, described clamp actuators is selectively moved, so that described independent Lock Part and described support are forced to connect into the clamping engagement.

23. Tischarretierungsvorrichtung as claimed in claim 22, the form of wherein said independent Lock Part is the ratchet on described first jaw, described ratchet can be positioned on the described support in the serrate slot in a plurality of separation point positions on any one, described clamp assembly is defined by described ratchet and described serrate slot, and it is cooperated with each other and makes them connect into the clamping engagement separately with convenient.

24. as claim 22 or 23 described Tischarretierungsvorrichtungs, wherein said clamping is actuated at and is parallel to described support and towards applying first side force on the direction of described first jaw on described second jaw.

25. Tischarretierungsvorrichtung as claimed in claim 24, wherein said second jaw can move in response to described first side force, make described first side force be delivered to respectively on described workpiece to be clamped and described first jaw, described first side force forces to connect into the clamping engagement with described independent Lock Part and described support.

26. as any one described Tischarretierungsvorrichtung in the claim 22 to 25, wherein said clamp actuators is a rotatable part, it is threaded to small part.

27. as claim 26 described Tischarretierungsvorrichtung when being subordinated to claim 22, wherein said rotatable part can be received within described second jaw threadably, and is adapted such that its selectable rotation causes described first side force being parallel to described support and moving axially described second jaw on the direction of described first jaw.

28. Tischarretierungsvorrichtung as claimed in claim 27, the pitch of wherein said co-operating screw thread is selectable, makes that rotating completely in maximum weeks of rotatable part is enough to described independent Lock Part and described support are forced to connect into the clamping engagement.

29. as the described Tischarretierungsvorrichtung of any one claim of front, wherein this device is provided with at least two to first and second jaw, each is to being installed on the different parallel portion of described support.

30. the method that any one described device comes clamping work pieces in use such as the claim 1 to 29, described method comprises the steps:

(i) utilize first hand manually to keep described workpiece to be clamped, make this workpiece be supported against described second jaw;

(ii) utilize second hand to come manually to move described first jaw, make its mesh the described workpiece that keeps by first hand, and apply manual confining force to described workpiece;

(iii) when utilizing second hand to keep described manual confining force, remove first hand from described workpiece; And

(iv), described first jaw is placed tighten mode selectively by utilizing first hand manually to move described clamp assembly.

31. as claim 30 when the method for using described clamping work pieces when being subordinated in the claim 1 to 13 device as described in any one, wherein described first jaw being placed the described step of tighten mode selectively is following enforcement: the manual integrally formed Lock Part of clamp actuators of rotation and described clamp assembly, mesh so that described Lock Part is forced to connect into to clamp with described first jaw.

32. as claim 30 when using claim 14 to 21 or 22 method of described clamping work pieces during device as described in any one in 29 that is subordinated to, wherein described first jaw being placed the described step of tighten mode selectively is following enforcement: the clamp actuators of manually rotating described clamp assembly, described clamp actuators is related with independent Lock Part, thereby described independent Lock Part and described first jaw are forced to connect into the clamping engagement.

33. workbench folding device, comprise base component, first and second strut assemblies and support, described first supports described base component and can be connected to described base component rotatably by rotor with second strut assemblies, on the described support jaw can be installed, described support can be connected to described base component by rotor rotatably; Wherein this device is adapted such that it can operate between following state:

(i) complete deployed condition, under this state, described each strut assemblies is separated, and described support is in level orientation on described base component;

(ii) part deployed condition, under this state, described each strut assemblies is separated, and described support folds into the position under the described base component; With

(iii) complete folded state, under this state, described each strut assemblies and described support put together so that the arrangement mode that is parallel to each other is overlapping.

34. workbench folding device as claimed in claim 33 wherein is in it wholly or in part during deployed condition when this device, the supported parts of described strut assemblies strut.

35. as claim 33 or 34 described workbench folding devices, wherein when this device was in its part deployed condition, described jaw leaned against on one of described strut assemblies.

36. as any one described workbench folding device in the claim 33 to 35, wherein said support can utilize the biaxial hinge rotor to be connected to holding components rotatably.

37. workbench folding device as claimed in claim 36, wherein said biaxial hinge is defined by linking arm, and an end rotor of described linking arm is connected to described base component rotatably, and other end rotor is connected to described support rotatably.

38. workbench folding device as claimed in claim 37, wherein said pivotally connected interval and be selectable with the described position that is connected of described support, be in that its part is launched or during folding fully state, described support can be folded to the position under the described base component so that guarantee at this device.

39. as any one described workbench folding device in the claim 33 to 38, wherein when this device is in its complete folded state, the downside that abuts against one of at least described jaw of described strut assemblies.

40. as any one described workbench folding device in the claim 33 to 39, one of them or more a plurality of described strut assemblies, base component and support are adapted such that they are placed in the state that bears tension force.

41. one kind is used the method that any one described device comes Foldable workbench in the claim 33 to 40, described method comprises the steps:

(i) by the level orientation of described support on its described base component rotated to position under the described pedestal around pivot, this device is transformed to its part deployed condition from its complete deployed condition; With

(ii) if desired,, make that they are parallel to each other and wherein at least one abuts against the downside of described jaw, this device is changed to its complete folded state from its part deployed condition by rotate described strut assemblies around pivot.

42. the method for Foldable workbench as claimed in claim 41 was to discharge Lock Part with this device before its complete deployed condition transforms to the described step of its part deployed condition wherein, it is fixed on position on the described base component with described support.

43. workbench clamps and folding device, its any one described in claim 1 to 29 is in conjunction with any one described in the claim 33 to 40.

44. the method for clamping work pieces and Foldable workbench, its any one described in claim 30 to 32 is in conjunction with claim 41 or 42 described methods.

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