EP0812660B1 - Vice - Google Patents

Abstract

A vice consists of a body (1) which can be mounted on a flat supporting surface and is equipped with a fixed jaw (10) and a rack (12), and a moving body (3) with a jaw (40) which can be moved relative to the fixed jaw and locked in the required position. The locking mechanism for the fixed and moving jaws consists of a peg (6) with a toothed end (61) which is operated by a lever (51) and cam (50) to engage with the rack. The moving jaw body (3) is articulated relative to the fixed jaw body about an axis (14) lying parallel to the fixed jaw, while the peg is urged towards the rack by a spring (62).

Description

The present invention relates to a device vise in accordance with the preambles of claims 1 and 5 (see DE 12 99 569 B).

A vice is usually made up of two jaws, one fixed and the other movable, and of an organ allowing the translation of the movable jaw for tightening, said member consisting in most cases in a screw-nut system.

In use, the object to be clamped is placed against the fixed jaw, and the movable jaw is brought to the contact of said object by turning the screw by means of a the sink.

To successively tighten objects of different dimensions, it is necessary, before the clamping operation, to adapt the jaw spacing by bringing them together or away from them, so that the tightening cannot be immediate.

The object of the present invention is to remedy this drawback by proposing a vice device allowing immediate tightening, not requiring prior adjustment of the jaw spacing.

According to a first embodiment, the vice device is defined by claim 1.

According to an additional characteristic of the first embodiment of the device according to the invention, the finger is housed in a chamber radial to the axis of pivoting of the movable jaw, it is pushed back in direction of the rack by the spring, and it is related to the carne so that the rotation thereof, in the direction opposite to that allowing the movable jaw to be removed from the body, causes the compression of said spring.

According to another additional characteristic of the device according to the invention, the cam consists of a half-round not coaxial with its pivot axis, part of which fits into a notch practiced in the region center of the finger, the curved wall coming into contact with the jaw mobile, while the flat wall is likely to come resting against the upper edge of said notch.

The pivoting of the cam, via the operating lever, allows in one direction of rotation the disengaging of the rack finger and pivoting of the body and the movable jaw towards the fixed jaw in order to block the object to be tightened, and in the opposite direction the engagement of the finger on the rack, therefore the blocking of the body, and, by prolonging the movement, the spacing of the movable jaw of the body, therefore its approximation of the fixed jaw in order to achieve the tightening of said object.

According to a second embodiment, the vice device is defined by claim 5.

According to an additional characteristic of the second embodiment of the device according to the invention, the guides are tubular parts which slide on parallel bars integral with the frame.

According to the invention, the cam is secured in rotation to the lever by means of a retractable lug in said lever.

The two embodiments are not intended for the same uses because of the kinematics different from the movable jaws, the first mode is more particularly intended for clamping cylindrical objects such as tubes, while the second allows clamping flat objects, too, the bits of the first mode of are preferably V-shaped, one concave and the other convex, while the jaws of the second embodiment are flat.

The advantages and features of the present invention will emerge more clearly from the description which follows and which relates to the appended drawing, which represents several embodiments not limiting.

• la figure 1 représente une vue en perspective et en éclaté avec arraché partiel d'un premier mode de réalisation du dispositif d'étau selon l'invention.
• les figures 2a, 2b et 2c représentent des vues schématiques de côté du même dispositif lors de différentes phases de son utilisation.
• la figure 3 représente une vue en perspective d'un second mode de réalisation du dispositif d'étau selon l'invention.
• la figure 4 représente une vue partielle en coupe partielle selon un plan vertical longitudinal non médian, du même dispositif.
• la figure 5 représente une vue partielle en perspective et en éclaté du même dispositif.
• les figures 6a, 6b et 6c représentent des vues partielles en coupe selon un plan longitudinal médian, du même dispositif, lors de différentes phases d'utilisation.
• la figure 7 représente une vue en perspective d'un dispositif de fixation du dispositif d'étau selon l'invention.

In the attached drawing:

• Figure 1 shows a perspective and exploded view partially broken away of a first embodiment of the vice device according to the invention.
• Figures 2a, 2b and 2c show schematic side views of the same device during different phases of its use.
• FIG. 3 represents a perspective view of a second embodiment of the vice device according to the invention.
• FIG. 4 represents a partial view in partial section along a non-median longitudinal vertical plane, of the same device.
• FIG. 5 represents a partial perspective and exploded view of the same device.
• Figures 6a, 6b and 6c show partial sectional views along a median longitudinal plane, of the same device, during different phases of use.
• FIG. 7 represents a perspective view of a device for fixing the vice device according to the invention.

If we refer to Figure 1 we can see that a vice device according to the invention comprises a frame 1, secured by appropriate means, not shown, to a workbench for example, a movable jaw 2 comprising a body 3 and a movable jaw 4.

The frame 1 has a jaw 10 and, making projecting perpendicularly, a flat piece 11 whose edge upper is a rack 12 in the shape of an arc of a circle concentric with a transverse hole 13 intended to accommodate an axis 14 for the pivoting assembly of the body 3 and the jaw mobile 4.

The movable jaw 4 has a jaw part 40 and two branches 41 passing on either side of the part 11, and in each of which is made a hole 42, one of which only visible, for the passage of axis 14.

The body 3 has two branches 30, passing from on either side of the branches 41 of the movable jaw 4, in each of which is made a hole 31, of which only one is visible, for the passage of axis 14.

The jaw 4 and the body 3 are recalled in spacing by a spring, not shown, threaded on the axis 14 and bearing on the frame 1 and on the movable jaw 4.

The body 3 has at its free end 32 a transverse channel 33 into which a shaft 5 is introduced mobile in rotation under the action of a lever, not represented, and which includes in its central region a eccentric 50 consisting of a non-coaxial half-round.

The channel 33 centrally includes a lumen 34 allowing the rear wall 43 of the movable jaw 4 to enter in contact with the eccentric 50.

The body 3 also includes internally a dark channel 35, radial to the axis 14, opening between the branches 30 and partially passing through channel 33 at eccentric right 50, and in which is housed a finger 6, of generally cylindrical shape, the end of which lower 60 has transverse notches 61 of shape complementary to that of the teeth 15 of the rack 12.

Finger 6 is movable in axial translation in channel 35, and it is pushed back towards the rack 12 by a spring 62 bearing on the bottom 35 ', not visible in the figure, of channel 35.

Finger 6 also has in its region central a notch 63 in which takes place a part of the eccentric 50, which allows in particular to prohibit the rotation of finger 6 in channel 35.

If we now refer to Figure 2a we can see that when pushed up, in the direction of arrow F, on lever 51 for operating the shaft 5, it rotates in the H direction and the flat face 52 of the eccentric 50 comes into contact with the upper edge 63 ' notch 63, which causes the finger 6 to rise by compressing the spring 62 against the bottom 35 ', and the disengagement of teeth 61 from teeth 15.

If we now refer to Figure 2b, we can see that the extension of the thrust in the direction of arrow F on lever 51 has the effect of pivoting the body 3 which drives the movable jaw 2, the jaw 40 of which brings the jaw 10 closer to the frame 1.

If we finally refer to Figure 2c we can see on the one hand that the release of the push on lever 51 causes, under the action of the spring 62, the descent of the finger 6 and the meshing of the teeth 61 thereof in the teeth 15 of the rack, which blocks the body 3 in a certain position, and on the other hand that a push towards the bottom, in the direction of arrow B, on the lever 51 is pivot the shaft 5 in direction A, and the curved wall 53 of the eccentric 50 is supported on the rear wall 23 of the jaw mobile 2 which moves away from the body 3, the jaw 40 approaching jaw 10 of frame 1.

The displacement of the body 3 and its blocking on the rack 12 allow the object to be clamped to be held between the movable jaw 2 and the frame 1, and the displacement of the movable jaw 2 under the action of the eccentric 50 allows to refine the tightening.

The tightening operation can thus be carried out easily and quickly by holding the object to be tightened hand and by operating lever 51 with the other.

Note the particular profiles of the jaws 10 and 40, namely in V, concave for the jaw 10 of the frame 1 and convex for the jaw 40, the profiles of these jaws are more particularly suitable for clamping tubes.

If we now refer to Figures 3 and 4 we can see that according to a second embodiment, the vice device according to the invention comprises a frame 7, comprising a base 70 of planar and rectangular shape, intended to be secured by its underside 71 to a flat support of the table or workbench type, and two walls vertical 72 and 73 facing each other, one at each end of the base 71, the wall 72, higher than the wall 73, carrying on its inner face a jaw 74.

Two parallel bars 75, of round section, extend between walls 72 and 73 to which they are joined by their ends, while a rack 76 having transverse notches 760 is secured to the upper face 77 of the base 70, parallel to the bars 75.

The vice also includes a mobile carriage 20 sliding on the bars 75 via tubular guides 21, only one of which is visible in the figure 4.

The carriage 20 comprises a body 36 and a jaw 44 parallel to the fixed jaw 74, the jaw 44 is movable in sliding on the tubular guides 21 which are integral with the body 36.

The body 36 is crossed transversely by a axis 88, and it has a central opening 37 in which is engaged the end 80 of a lever 8, not shown in Figure 4, which is pivotally pivoted on axis 88.

If we now refer to Figure 5 we can see that the end 80 of the lever 8 has two discs coaxial 81 separated by a space 82 and pierced with a hole 83 for the passage of axis 88.

Space 82 is intended to accommodate a disc 55 comprising a hole 56 for the passage of the axis 88, and having, on about a quarter of its circumference on the side jaw 44, a cam portion 57, that is to say that the radius of this part is not constant and increases from the top down.

The disc 55 is in free rotation on the axis 88, but the lever 8 includes means making it possible to solidarity which will be described later.

We can also see in Figure 5 a finger 6 'in the shape of a stirrup, comprising a crosspiece 64 surmounted of two parallel uprights 65 each having on their internal edge, in a substantially median position, a notch 66, while the crossmember 64 has on its edge lower and centrally a series of notches 67 of shape complementary to that of the notches 760 of the rack 76, not shown.

The finger 6 'is intended to be introduced into a housing 38 that comprises the body 36, shown in lines discontinuous in Figure 4, opening on the face lower 39 of it than the rack 76, and positioned behind the passage of axis 88.

The finger 6 'can move in the housing 38 in order to allow the engagement of the notches 67 in the notches 760 of rack 76, under the action of two springs 68 housed in two holes 69 each made in the uprights 64 at the upper end of these and which are supported against the bottom 38 'of the housing 38.

The end 80 of the lever 8 also includes, projecting from each of the outer faces of the discs 81, two pins 84, only one of which is visible in the figure, intended to take place each in one of the notches 66 of finger 6 '.

If we now refer to Figures 6a, 6b and 6c we can see the operation of the vice device according to the invention.

In Figure 6a, while an object to be clamped 16 is placed against the fixed jaw 74, the carriage 20 is moved towards it, by pushing on the lever 8 in the direction of the fixed jaw 74 in the direction of the arrow C, until the jaw 44 comes into contact with object 16, pressing lever 8 in the direction of arrow C having the effect, via the lugs 84 which are supported on the upper edges 66 'of notches 66, raising the finger 6 'by compressing the springs 68, therefore the disengagement of the notches 67 of the notches 760 from rack 76.

In FIG. 6b, when the movable jaw 44 is in contact with the object 16, the pressure on the lever 8 is released, so that under the effect of the springs 68, the finger 6 'slides in its housing 38 and the notches 67 mesh on the notches 760 of rack 76, blocking thus the carriage 20.

In FIG. 6c, the lever 8 is lowered in the direction of arrow D, which has the effect of rotating the disc 55 including the cam portion 57, by resting on a pin 45 which the jaw 44 has on its rear face 46, pushes back the jaw 44 which slides on the tubular guides 21 and tightens the object 16, the body 36 remaining anchored on the rack 76.

In this embodiment the disc 55 is in free rotation on axis 88, possibly being braked by an appropriate means such as an O-ring not shown, its attachment to lever 8 is achieved by via a lug 85 which has at its end a rod 86 slidably mounted axially in the lever 8, and likely to engage in a notch 58 practiced in the edge of the disc 55.

The retraction of the lug 85 is carried out by a known type system which will not be described and controlled by a button 87, visible in FIG. 5, which the lever 8 at its free end.

After tightening of the object 16 the lug 85 can be retracted and disengaged from the notch 58, which allows to lower lever 8 which does not then constitute a gene to perform work on the object 6.

It will be noted that the lever 51 and the shaft 5 of the first embodiment, can also be joined together by a similar device.

According to a variant, not shown, the device may not include this arrangement, in this case the end 81 of the lever 8 comprises only the part cam 57 which is secured to it by screwing for example.

If we now refer to Figure 7, we can see a fixing device 9 of the vice device according to the invention.

This fixing device 9 comprises a body 90 L-shaped, a branch 91 of which has at its end, projecting perpendicularly, two parallel rods 92 and 93, while the other branch 94 is crossed perpendicularly by a screw 95 provided at its end lower of a handle 96 of maneuvering and its other end of a flat tip 97.

Rods 92 and 93 are intended to be introduced into two of the holes 78, visible in the figures 3 and 4, which regularly spaced around its periphery the base 70, while the branch 94 of the body 90 is placed under the flat support, not shown, on which the base 70, then screw 95 is tightened until the end piece flat 97 comes to bear against the underside of the support.

Note that the frame 7 can also be secured to a support by screwing, using screws introduced into holes 79 made in the base 70, only one of which is visible in Figure 3.

Claims (10)

1. Vice device of the type including, on the one hand, a framework (1) having a resting plane, said resting plane of the framework being able to be made integral with a flat support and bearing a fixed chuck jaw (10) and, on the other hand, a movable jaw (2) comprising a body (3) and a chuck jaw (4), characterised in that it includes one single rack (12) in the shape of an arch of a circle arranged on a plane perpendicular to said resting plane of the framework (1), said movable chuck jaw (4) being hinged about an axis of pivoting (14), parallel to said resting plane of the framework (1) and coaxial to said rack (12), with a possibility of being blocked on the latter through one single movable pawl (6) in said body (3), provided with catches (61) at its end located in front of said rack (12), restored in the direction of the latter by at least one spring (62) and capable of being actuated by a lever (51) hinged on said body (3), about an axis (14) passing through the body (3) and parallel to said resting plane of the framework (1), the hinged end of said lever (51) being connected to a cam (50) resting on the rear portion (43) of said movable chuck jaw (4) in order to allow separating the latter from said body (3) in the direction of said fixed chuck jaw (10).
2. Device according to claim 1, characterised in that the pawl (6) is accommodated in a chamber (35) radial to the axis of pivoting (14) of the movable jaw (2), and is connected to the cam (50) so that the rotation of the latter, in the direction (H) in which the movable chuck jaw (4) comes closer to the body (3), causes the spring (62) to compress, which pushes back the pawl (6) in the direction of the rack (12).
3. Device according to claim 1 or claim 2, characterised in that the cam (50) consists of a half-round part that is not coaxial to its axis of pivoting (5) and a portion of which is inscribed in a notch (63) provided for in the central area of the pawl (6), the curved wall (53) of said cam (50) entering into contact with the movable chuck jaw (4), while its flat wall (52) can rest against the upper edge (63') of said notch (63).
4. Device according to any of the preceding claims, characterised in that the chuck jaws (4, 10) have complementary V-shaped profiles, the chuck jaw (10) of the framework (1) being concave and the chuck jaw (4) of the movable jaw (2) being convex.
5. Vice device of the type including a framework (7) having a resting plane, said resting plane of the framework (1) being able to be made integral with a flat support and including a fixed chuck jaw (74) perpendicular to the resting plane of the framework (1) and a movable jaw (20) comprising a body (36) and a chuck jaw (44) movable with respect to said body (36), characterised in that it includes one single rack (76) arranged on a plane parallel to said resting plane of the framework (1) and in that said jaw (20) is mounted so as to be capable of sliding parallel to said rack (76) through guides (21) integral with the body (36) of said movable jaw (20), while the chuck jaw (44) of the latter can freely slide on said guides (21) and said movable jaw (20) can be blocked on the rack (70) through one single movable pawl (6') in said body (36), provided with catches (67) at its end located in front of said rack (76), restored in the direction of the latter by at least one spring (68) and capable of being actuated by a lever (8) hinged on said body (36), about an axis (88) passing through the body (36) and parallel to said resting plane of the framework (1), the hinged end of said lever (8) being connected to a cam (55) resting on the rear portion (45) of said movable chuck jaw (44) in order to allow separating the latter from said body (36) in the direction of said fixed chuck jaw (74).
6. Device according to claim 5, characterised in that the guides (21) are tubular parts that slide on parallel bars (75) integral with the framework (7).
7. Device according to claim 5 or claim 6, characterised in that the hinged end (80) of the lever (8) includes two coaxial discs (81) separated by a space (82) and drilled with a hole (83) for the passing through of the axis of pivoting (88) on the body (36), said space (82) being aimed at accommodating a disc (55) rotationally mounted on said axis (88), made integral with said lever (8) and having, over about one fourth of its circumference, a cam portion (57) the radius of which is not constant and increases from the top downwards.
8. Device according to claim 7, characterised in that the pawl (6') is movable in a recess (38) provided for in the body (36) and opening in front of the rack (76), said pawl (6') being in the form of a clamp and including a cross bar (64) topped with two parallel posts (65) each provided, at their end, with a restoring spring (68) and each having, at their inner edge, in a substantially median position, a notch (66), while the cross bar (64) has, at its lower edge and centrally, catches (67) ; and in that the hinged end (80) of the lever (8) laterally includes pawls (84) each positioning itself in one of said notches (66) of the posts (65), against the upper edges (66') of which they abut, when said lever (8) raises, in order to compress the springs (68).
9. Device according to any of the preceding claims, characterised in that the cam (5 ; 55) is made integral with the lever (51 ; 8) through a retractable pawl (85).
10. Device according to any of the preceding claims, characterised in that the framework (1) includes, at its periphery, evenly spaced holes (18) aimed at allowing making said framework (1) integral with a flat support by means of a fastening device (9) comprising, on the one hand, two parallel rods (92, 93) aimed at being inserted into two of said holes (18) ; and, on the other hand, a fastening means (95) on the flat support on which said framework (1) rests.

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