EP1810784A2 - Variably adjustable device for the clamping of tubes - Google Patents

Abstract

The unit is assembled of a jaw element (131) to be joined to the top of a workbench (135) and a clamping lever swivel mounted laterally to the front of the jaw (137) to be moved towards the telescopic leg positioned between them. The lever is fitted with a swivel mounted adjusting nut accommodating the pulling spindle. The opposite end of the spindle is provided with an interlocking member serving as an abutment. The jaw (131) has a v-shaped recess (141) for the accommodation of the leg and an opening (132) for a guide bar (86).

Description

The invention relates to a device for clamping a tube consisting of a holding jaw which is fixedly mounted on a worktop of a workbench or the like. And a press lever, which is pivotally mounted with its one end via a bearing head in a first side region of the holding jaw and a tension spindle , By means of which the pressing lever against a arranged between the holding jaw and the pressing lever tube can be pressed.

Devices of the generic type have been known from practice for a long time. These are used, for example, for repair work of spring damper legs. Such spring damper legs generally have a so-called damper tube, via which such a spring damper strut, for example, can be clamped in a vice. Since during clamping of such a tube between the planar clamping jaws of a conventional vise only insufficient support can be achieved and a deformation of the tube is not ruled out, special devices have become known for clamping such pipes.

These devices have a stationary holding jaw, on which a pressing lever is pivotally mounted. For clamping support of the damper tube of this press lever is approximately aligned parallel to the holding jaw aligned and can via a clamping device be clamped against the holding jaw. In this case, both the contact surfaces of the holding jaw and that of the pressing lever may have a curved course, whereby the contact areas are increased to be clamped pipe. On the other hand, by such a configuration, a fairly stable orientation of the tube can be achieved. The tensioning device of such a device consists of a traction spindle, which is also pivotally mounted on the holding jaw. This tension spindle is associated with a pressure nut which can be brought into operative connection with the pressure lever so that the pressure lever can be pressed with its free end towards the holding jaw and a damper tube arranged between the pressure lever and the holding jaw is held stationary.

Due to this configuration, in particular the clamping of damper tubes of a spring damper leg is extremely difficult, since the installer must hold the damper tube in the region of the holding jaw and at the same time first pivot the pressing lever in front of the damper tube and the tensioning spindle must engage with the pressing lever to this then to be able to stretch.

The invention is therefore an object of the invention to provide a device of the generic type such that it is extremely easy to handle.

The object is achieved in that the pressing lever for the adjustable recording of the tension spindle in its bearing head opposite second end region has an adjusting nut which is pivotally mounted on the pressing lever and that the tension spindle is provided at its the jaw end facing with a positive locking element, with in which the tension spindle can be brought into positive engagement with a part of the holding jaw serving as an abutment.

By this configuration, the pressing lever via the pulling spindle in front of the pipe to be clamped is pivotable, while at the same time the pivotally mounted on the pressing lever on the adjusting nut tension spindle with the abutment can be brought into engagement. That by the embodiment according to the invention a "one-hand operation" is made possible for the pressing lever together with the Zuspindel so that the fitter with the other hand, for example. a tube to be clamped can safely hold in the clamping area of the holding jaw.

Further advantageous embodiments of the invention are the dependent claims.

Thus, according to claim 2, for example, be provided that on the holding jaw a plate-shaped trained, directed towards the worktop and this fixed mountable mounting plate is provided which forms an integral unit in the form of a holding plate with the holding jaw. This embodiment allows an extremely simple production. The required or intended shaping of both the mounting plate and the holding jaw can be generated for example by laser cutting in one operation. Furthermore, an extremely simple and stable mounting on a worktop, such as a workbench is ensured.

Due to the configuration according to claim 3, a defined recording of a tube is achieved. For this purpose, it is provided that the holding jaw for partially receiving the tube has a V-shaped or arcuate recess. Due to the V-shaped or arcuate configuration, pipes of different diameters can also be received in a holding jaw in a simple and reliable manner. Also achieved by this configuration is a safe approximately at right angles to the holding jaw orientation of the clamped tube.

The embodiment according to claim 4 also allows the clamping of pipes, which have a radially projecting sheet metal component. For this purpose, it is provided that the V-shaped recess forms two V-legs, which extend at an angle of 60 ° to 120 °, preferably 90 ° to each other and that between the V-legs, a receiving slot is provided.

According to claim 5 it can be provided that the bearing head of the pressing lever has an adjusting spindle, via which the bearing head is in operative connection with an adjusting nut and that the adjusting nut is rotatably and axially non-displaceably mounted on the holding jaw of the clamping device. With this configuration, the device according to the invention can be variably adapted in a simple manner to different pipe diameters, since the distance of the pressing lever to the holding jaw on the adjusting nut and the adjusting spindle is variably adjustable.

Further, it can be provided according to claim 6 that are provided for supporting the adjusting nut in a region laterally adjacent to the recess of the holding jaw two arranged below the holding jaw bearing elements. This embodiment allows an extremely simple and safe installation of the adjusting nut.

Due to the embodiments according to claims 7 and 8 an extremely simple handling and manufacture of the clamping device is achieved. For this purpose, it is provided according to claim 7, that the abutment of the holding jaw is formed as a support tab, which protrudes outwardly in the side opposite the bearing elements and that the positive locking element of the tensioning spindle is designed as a tension sleeve, which has a radially widened gutter and that the Press lever and the tensioning spindle are pivotable relative to the holding jaw so that the tension sleeve engages with its gutter, the support tab against the pulling direction.

According to claim 8 it can be provided that laterally next to the V-shaped recess two approximately symmetrically to the recess below the holding jaw arranged and the pressing lever out projecting guide leg are provided to simplify the attachment of the tube to the recess. By this configuration, the application of a pipe in the region of the recess of the holding jaw is considerably facilitated.

Due to the configuration according to claim 9, an extremely high stability of the clamping device is achieved. For this purpose, it may be provided that the holding jaw is associated with an additional support plate which is aligned parallel to the holding jaw and that the support plate is provided with a V-shaped or arcuate recess whose shape and arrangement corresponds to the V-shaped recess of the holding jaw. Further, this embodiment improves the precise vertical alignment of a pipe at right angles to the holding jaw, and due to the increased stability of the entire apparatus, very high clamping forces for clamping the pipe can be applied.

Due to the configuration according to claim 10, a simple assembly and alignment of the support plate is achieved on the holding jaw. For this purpose, it is provided that the support plate is positioned on the underside of the bearing elements and the guide legs.

Due to the configuration according to claim 11, the clamping device according to the invention can be coupled in a simple manner with other tools, such as with a suitably adapted spring tensioner or an alignment device. For this purpose, it is provided that the retaining plate are provided with a receiving bore and the support plate with a concentric to the receiving bore arranged through hole and that the receiving bore and the through hole for fixed mounting of a tubular body of a clamping or alignment tool serve.

According to claim 12, it can be provided for this purpose that between the holding plate and the support plate in the region of the receiving bore and the through hole, a spacer ring is provided as a spacer, which is placed together with the support plate on the bearing portion of a bearing sleeve attached to the tubular body. This embodiment ensures extremely stable mounting of such an additional tool on the clamping device.

Due to the configuration according to claim 13 extremely high clamping forces can be applied. Accordingly, it is provided that the support plate is provided with a laterally projecting support tab, which is spaced from the support tab of the holding jaw and arranged congruent to the support tab of the holding jaw and that the tension sleeve with its gutter simultaneously with the support tab of the holding jaw and the support tab of the support plate into engagement can be brought.

Due to the embodiments according to claims 14 and 15, we further facilitates the handling, since the fitter can "settle" a pipe to be clamped directly in the area in front of the holding jaw.

Thus, it can be provided according to claim 14 that a support device is provided on the underside of the support plate and that the support device has a positionable below the tube taken support plate.

According to claim 15 it is provided that the support device has a vertically downwardly directed support profile on which a horizontally extending support arm is arranged vertically adjustable and that the support arm is provided with an adjusting device by means of which the support plate is horizontally and vertically positionable. By this configuration, the support device is in particular in a simple manner to the diameter different sized damper tubes and generally adaptable to spring damper legs of different sizes.

Further, it can be provided according to claim 16, that the holding jaw and the pressing lever are provided to be clamped pipe out with a plastic coating or a plastic coating. By this configuration, damage to the clamped pipe is safely avoided even with larger clamping forces.

For this purpose may be further provided according to claim 17, that the plastic support is interchangeable attached to the holding jaw or the pressing lever and that the plastic support has different receiving contours for the exception of pipes of different diameters. By this feature combination, the clamping device according to the invention is extremely easy and variable adaptable to differently sized tubes. Furthermore, the right-angled alignment with respect to the clamping device is significantly improved by the shape of a pipe to be clamped.

Thus, a device for clamping pipes, in particular damper pipes of a spring damper strut of a motor vehicle is provided by the clamping device according to the invention, which is extremely easy to handle and extremely variable to the conditions of use with respect to the dimension of clamped pipes adaptable.

Fig. 1

eine perspektivische Darstellung einer Halteplatte einer erfindungsgemäßen Einspannvorrichtung welche mit einer Spannvorrichtung koppelbar ist;

Fig. 2

die erfindungsgemäße Einspannvorrichtung im teilweise montierten Zustand in perspektivischer Darstellung;

Fig. 3

einen Vertikalschnitt des unteren Endbereiches eines zu einer Spannvorrichtung gehörenden Führungsrohres mit einem Teilschnitt der am Führungsrohr feststehend montierten Einspannvorrichtung aus Fig. 2;

Fig. 4

eine Draufsicht auf die Einspannvorrichtung aus Fig. 2 in einer geöffneten Stellung mit einem einzuspannenden Dämpferrohr eines Federdämpferbeines;

Fig. 5

die Einspannvorrichtung aus Fig. 4 in einer halb geschlossenen Zwischenposition in Draufsicht;

Fig. 6

die Einspannvorrichtung aus den Fig. 4 und 5 in der Endposition mit dem eingespannten Dämpferrohr;

Fig. 7

einen perspektivischen Teilschnitt einer an der Einspannvorrichtung aus den Fig. 2 bis 6 anordenbaren Stützvorrichtung.

Fig. 8

einen vertikalen Teilschnitt einer vollständig montierten erfindungsgemäßen Einspannvorrichtung in Funktionseinheit mit einer Spannvorrichtung zum Spannen eines Federdämpferbeines.

Reference to the drawing, the invention is explained in more detail by way of example in the following. It shows:

Fig. 1

a perspective view of a retaining plate of a clamping device according to the invention which can be coupled with a clamping device;

Fig. 2

the clamping device according to the invention in the partially assembled state in perspective view;

Fig. 3

a vertical section of the lower end portion of a guide tube belonging to a clamping device with a partial section of the guide tube fixedly mounted clamping device of Fig. 2;

Fig. 4

a plan view of the clamping device of Figure 2 in an open position with a damper tube to be clamped a spring damper leg.

Fig. 5

the clamping device of Figure 4 in a semi-closed intermediate position in plan view.

Fig. 6

the clamping device of Figures 4 and 5 in the end position with the clamped damper tube.

Fig. 7

a perspective partial section of an on the clamping device of Figs. 2 to 6 can be arranged support device.

Fig. 8

a vertical partial section of a fully assembled clamping device according to the invention in functional unit with a clamping device for tensioning a spring damper leg.

1 shows a perspective view of a retaining plate 131 of a clamping device 140 according to the invention (FIG. 2), which has a receiving bore 132 for coupling, for example, a guide tube 86 of a spring tensioner shown in phantom. For the top fixing and fixing of the guide tube 86, a screw ring 119 is provided. The receiving bore 132 further has a radially inwardly directed guide tongue 133, which in the assembled state of the guide tube 86 in a positioning slot 87 of the guide tube 86th fittingly intervenes. Thus, the guide tube 86 is taken against rotation and at right angles to the holding plate 131 extending from this.

Further, the holding plate 131 forms a rear mounting portion 134, by means of which the holding plate 131, for example, on a countertop 135 a workbench or the like. Is fixedly mounted. For this purpose, this mounting portion 134 in the present embodiment a total of four through holes 136.

Thus, the guide tube 86 in the simplest way can be fixedly mounted on the work surface 135, so that the handling is greatly simplified. For fixed support of the guide tube 86 on the holding plate 131, in turn, serves a bearing sleeve 122, which is screwed on the underside against the holding plate 131, as shown in Fig. 3.

In the present embodiment, this holding plate 131, with its holding jaw 137 facing away from the working plate 135 or from the mounting section 134, forms part of a clamping device 140 (FIG. 2) in which a damper tube of a spring damper leg can be received in a fixed and clamping manner in the manner of a vice. This clamping device 140 can replace the gripping element otherwise arranged in the illustrated lower end region of the guide tube 86 with a spring tensioner.

The components of the clamping device 140 are shown in Fig. 2 in a partially perspective exploded view. In this case, only the front holding jaw 137 is shown in Fig. 2 of the holding plate 131. It can be seen that the holding jaw 137 to the front end side has a V-shaped recess 141, the V-legs 142 and 143 extend in the present embodiment at an angle of 90 ° to each other.

By this configuration, damper tubes of different diameters are always precisely recorded. In order to be able to apply a damper tube more easily in the region of these two V-limbs 142 and 143, two guide limbs 144 and 145 are provided laterally next to this V-shaped recess 141. Furthermore, by means of these two guide legs 144 and 145, a damper tube adjusted in the region of the V-shaped recess 141 is also secured against lateral tilting, whereby the handling is considerably facilitated.

In the front lateral region, the holding jaw 137 on the underside two spaced-apart bearing elements 146 and 147, between which an adjusting nut 148 is rotatably and axially immovable. This adjusting nut 148 has a radially enlarged Rändelbund 149 over which the adjusting nut 148 is manually rotatable. With this adjusting nut 148, an adjusting spindle 150 can be brought into engagement. By corresponding rotation of the adjusting nut 148 thus the adjusting spindle 150 in the direction of the double arrow 151 is variably adjustable.

The adjusting spindle 150 has, in its end region opposite the adjusting nut 148, a bearing head 152 on which a pressing lever 153 is pivotably mounted. Thus, by pressing the adjusting nut 148, the distance of this pressing lever 153 can be variably adjusted to the V-shaped recess 141 of the holding jaw 137.

The pressing lever 153 is formed in the present embodiment by an upper clamping plate 154 and a lower clamping plate 155. The two clamping plates 154 and 155 are connected to each other via a spacer 156, for which purpose two mounting screws 157 are provided.

Between the two clamping plates 154 and 155, an adjusting nut 158 is pivotally received in their, the bearing head 152 opposite end portion. By this adjusting nut 158 a threaded spindle 159 is screwed through, which is provided at its, the holding jaw 137 towards the end with a tension sleeve 160. This tension sleeve 160 is screwed onto the tension spindle 159 and captively secured, for example by means of a transverse locking pin 161. This tension sleeve 160 has at its free end a radially enlarged gutter 162, whose function will be explained later in more detail.

In its, this gutter 162 opposite end portion of the tension spindle 159 is provided with two diametrically opposite and transverse to the pulling spindle 159 operating levers 163.

Furthermore, it can be seen from FIG. 2 that the holding jaw 137 is assigned a support plate 164. This support plate 164 has approximately in the region of the receiving bore 132 of the holding plate 131 also has a through hole 165. With this through hole 165, the support plate 164 in the mounted state on an upper bearing portion 123 (see FIG. 3) of the bearing sleeve 122 fits placed. In order to ensure a predetermined distance, which corresponds to the height of the two bearing elements 146 and 147, to the holding plate 131, a spacer ring 166/1 is provided between the holding plate 131 and the support plate 164, which in the mounted state also on the upper bearing portion 123 of the bearing sleeve 122 of FIG. 4 can be placed. In the assembled state, the support plate 164 is disposed on the underside of the two guide legs 144 and 145 and the two bearing elements 146 and 147. In this case, the support plate 164 can be screwed to these components.

The front end face of the support plate 164 is identical to the front end face of the holding jaw 137 Also, the support plate 164 has a V-shaped recess 166, which also forms two V-legs 167 and 168 extending at 90 ° to each other. In this case, the shape is identical to the shape of the V-shaped recess 141 of the plate portion 137. By this support plate 164 thus a male damper tube is precisely aligned at right angles to the support plate 131, so that this parallel to the actuator 85 and its guide tube 86 runs.

2 that between the V-legs 142, 143 of the plate portion 137 and between the two V-legs 167 and 168, a receiving slot 169 and 170 is provided in each case. These receiving slots 169 and 170 serve to receive a radially projecting from a damper tube sheet metal component, which are provided in some constructions of Federdämpferbeinen immediately below the spring damper fixedly arranged on the damper tube. By this configuration, a spring damper leg with its lower spring plate on the plate portion 137 and the closed pressing lever 153 can be placed. Thus, when coupling the clamping device 140 with a spring compressor via its guide tube 86 shown in FIG. 1, the axial forces occurring during the clamping operation can be optimally transmitted to the clamping device 140 via the spring plate. This also reliably prevents a clamped damper tube from "slipping" axially during such a use of the clamping device 140 during the clamping process.

Furthermore, it can be seen from FIG. 2 that both the holding jaw 137 and the support plate 164 each have a laterally projecting support lug 171 and 172, respectively, opposite the two bearing elements 146 and 147. In the underside of the guide legs 144, 145 and the bearing elements 146 and 147 mounted state of the support plate 164 have the two Support tabs 171 and 172 a vertical distance from each other. Thus, the tension spindle 159 can be pivoted in by pivoting with its tension sleeve 160 between these two support straps 171 and 172. The dimensions of the gutter 162 are chosen so that this gutter 162 engages behind the two support tabs 171 and 172 for a clamping support of a damper tube between the V-shaped recesses 141 and 166 and the pressing lever 153. Thus, the pressing lever 153 in a simple manner by tightening the pulling spindle 159 via the actuating lever 163 in the direction of arrow 173 against the two support tabs 171 and 172 pressed. In this case, each of the support tabs 171, 172 on the rear side in the region of its outer edge on a safety projection 174 and 175, by which safely accidental slipping out of the tension sleeve 160 from the two support tabs 171 and 172 is prevented.

It can also be provided according to the invention that the holding plate 131 is used with its holding jaw 137 without the support plate 164. In this case, the support tab 172 should be arranged as a separate component on the underside, for example, on the guide leg 144 fixed to safely exclude slippage of the gutter 162 of the tension sleeve 160.

In order to avoid damage to a male pipe, such as a damper tube of a spring damper leg, the V-shaped recesses 141 and 166 of the holding jaw 137 and the support plate 164 on the one hand and the pressing lever 153 on the other hand with plastic covers (not shown in the drawing) may be provided which each have a mounting element with which these plastic covers between the plate portion 137 and the support plate 164 on the one hand and between the two clamping plates 154 and 155 on the other hand are interchangeable used.

Fig. 3 shows a vertical section through the lower end portion of the guide tube 86. It can be seen that the guide tube 86 is provided in this area with an external thread 91. The support plate 164 is placed with its through hole 165 on the upper bearing portion 123 of the bearing sleeve 122 and lies flat against a support collar 124 of the bearing sleeve 122. Above the support plate 164 of the spacer ring 166/1 is placed on the bearing portion 123. In this case, the sum of the thickness of the support plate 164 and the height of the spacer ring 166/1 corresponds approximately to the axial height of the bearing portion 123. Above the bearing portion 123, the holding plate 131 is placed with its receiving bore 132 and fixedly secured on the screw ring 119. It can be seen that the guide tongue 133 of the receiving bore 132 fits into the adjusting slot 87 of the guide tube 86. In this mounted state thus the entire clamping device 140 shown in FIG. 2 is fixedly secured to the lower end of the guide tube 86. If the guide tube forms part of a spring tensioner and if the clamping device 140 is fastened to the guide tube 86, a force absorption or force introduction via the guide tube 86 into the clamping device 140 is reliably ensured, so that even large clamping forces for clamping, for example, a helical spring inserted in a spring shock absorber leg can be applied.

4 shows a plan view of the retaining jaw 137 of the clamping device 140. In FIG. 4, a damper tube 176 is shown schematically in phantom lines, which is to be clamped by the clamping device 140.

In the starting position shown in Fig. 4, the pressing lever 153 is approximately in the axial extension of the adjusting spindle 150 of the adjusting nut 148. The tensioning spindle 159 is pivoted in the direction of arrow 177 with its tension sleeve 160 to the outside. After the damper tube 176 in the position shown in FIG has been brought, now the pressing lever 153 is brought in the direction of arrow 178 in an approximately parallel to the support tab 171 extending position, as shown in FIG. 5 can be seen. By pivoting the pulling spindle 159 with its tension sleeve 160 in the direction of the arrow 179, the tension spindle 159 passes between the two support tabs 171 and 172, of which in Fig. 5, only the support tab 171 of the holding jaw 137 can be seen.

As soon as the pulling spindle 159 is aligned approximately parallel to the adjusting spindle 150, as can be seen from FIG. 6, the adjusting nut 148 can now be actuated, so that the adjusting spindle 150 then moves together with the pressing lever 153 in the direction of the arrow 180 until the pressing lever 153 approximately parallel to the support tab 171 extending against the damper tube 176 is applied. In this case, the pressing lever 153 may be provided to improve the clamping effect to the damper tube 176 out with a curved or arcuate clamping surface 181. In addition, an additional rectangular alignment of the damper tube 176 to the holding plate 131 is achieved by this arcuate course of the clamping surface 181.

By subsequently tightening the pulling spindle 159 via its actuating lever 163, the pulling spindle 159, together with the pulling sleeve 160, reaches the end position 182 shown in phantom lines in FIG.

Thus, it can be seen that the clamping device 140 can be operated in an extremely simple manner with one hand for clamping a damper tube 176. The mechanic can always hold the damper tube 176 in the desired position with his other hand while closing the pressing lever 153. The closing movement and the subsequent adjusting movement on the one hand the adjusting nut 148 and on the other hand the pulling spindle 159 can be done independently of the holding of the damper tube 176 with one hand. Thus, this, for example, as a support element for the damper tube or the lower spring plate serving jig 140 are operated in the simplest way by one person.

In order to further improve the handling, a separate support device 185 may additionally be provided "underneath" the holding plate 131 and the support plate 164 from FIG. 2, as will be explained in greater detail with reference to FIG.

FIG. 7 shows a perspective view of a support device 185, which has as a main component a vertically oriented support profile 186. This support profile 186 may have a U-shaped or otherwise suitable profile shape, which has a high bending stiffness. As can be seen from FIG. 7, the support profile 186 has in its front end wall 187 a plurality of perforations 188, which are arranged one above the other at regular intervals and are keyhole-shaped. These apertures 188 are used for selective coupling of the support profile 186 with a support arm 189 consisting of a support profile 192. This support profile 192 extends horizontally in the present embodiment and has a U-shaped cross-section. For support profile 186 out of this support profile 192 is provided with a support wall 193, which in turn receives two superimposed retaining screws 194. These retaining screws 194 are each fixedly connected by means of a retaining nut 195 with the support wall 193, as shown in FIG. 7 can be seen.

Each of the retaining screws 194 has a screw head 196, which is arranged in the mounted state at a horizontal distance from the support wall 193. This results between the screw heads 196 and the support wall 193 each have a mounting shaft 197 of each retaining screw 194th

The diameter of the screw heads 196 is selected such that the two screw heads 196 can be inserted through the respectively widened upper area of the keyhole-like openings 188. By subsequent vertical displacement in the direction of the arrow 198, the mounting shanks 197 each engage with the lower, smaller-sized region of the openings 188, so that the screw heads 196 engage behind the front end wall 187 in the area of these smaller breakthrough areas of the openings 188. Thus, the support profile 192 is variably, gradually in its height in different positions on the support section 186 "suspended". This configuration of the keyhole-like openings 188 in conjunction with the special configuration of the retaining screws 194 thus an adjustment of the support profile 192 on the support section 186 in an extremely simple manner and in a very short time feasible.

According to the invention, another form-fitting type of connection between the support profile 186 and the support arm 189 may be provided. For example, the support profile 186 can be seen from a square tube, onto which a guide tube can be slid suitably (not explicitly shown in the drawing). On this guide tube, the support arm is welded, for example. For Verikalverstellung can be provided in the square tube of the support section 186 a plurality of vertically superposed transverse bores, which can be brought into coincidence with corresponding transverse bores of the guide tube. To secure the position through the transverse holes plug-in pin can be plugged through, so that this also results in an extremely easy adjustable connection.

In the present embodiment, the support profile 192 in its end wall opposite the support wall 193 an adjusting wall 199, in which an adjusting nut 200 rotatably and is inserted axially immovable. This adjusting nut 200 is in operative connection with a threaded pin 201, which is moved at right angles to the vertically extending support profile 186 upon rotation of the adjusting nut 200 in the direction of the arrow 202. This threaded pin 201 is connected via a grooved pin 203 with a control body 204, which moves according to the adjusting movement of the threaded pin 201 with this in the direction of the double arrow 202 within the support profile 192. In this adjusting body 204, a threaded bush 205 is inserted, which is secured against rotation in the adjusting body 204 by means of a grub screw 206 in position. This threaded bush 205 has a radially expanded bearing collar 207, by means of which the threaded bushing 205 is supported on the upper side on the transverse transverse wall 208 of the supporting profile 192. In order to adjust the threaded bushing 205 in the direction of the double arrow 202 along the transverse wall 208, this has a corresponding slot 209.

Through this vertically aligned threaded bushing 205, a screw 210 is screwed through. This adjusting screw 210 is provided in its lower end with a transverse and the adjusting screw 210 protruding hand lever 211, via which the screw 210 is manually rotatable in a simple manner.

In its upwardly out of the threaded bushing 205 end region, the adjusting screw 210 forms a bearing head 212, on which a support plate 213 is rotatably mounted. In turn, a support plate 214 is placed on this support plate 213. The support plate 214 and the support plate 213 are secured on the bearing head 212 via a corresponding mounting screw 215. In the present embodiment, the support plate 213 is fixedly connected together with the support plate 214 with the adjusting screw 210.

According to the invention it is also provided that the support plate 213 is rotatably attached to the adjusting screw 210 together with the support plate 214. For this purpose, between the circumferential, relative to the bearing head 212 radially enlarged shoulder 216 and the support plate 213 may be provided in the drawing not shown in detail thrust bearing.

Further, the support plate 214 may be made of a plastic material to securely prevent damage such as a damper tube placed on the support plate 214. Next, on the support plate 213 on the outside, a vertically upwardly projecting stop 217 may be provided, which is shown in phantom lines in Fig. 7. Such a stop 217 prevents slipping of an attached damper tube. This is also an alignment of a damper tube by a corresponding adjustment of the support plate 213 together with the support plate 214 safely carried out without the damper tube can slip. Instead of such a stop 217 and the support plate 214 may be provided, for example, with a circumferential annular wall 218, as shown in Fig. 7 is also shown in phantom in.

By this embodiment of the support device 185 with its both vertically and horizontally variably positionable support plate 213 with its support plate 214, the handling, in particular for attachment of a spring damper strut with its damper tube 176, as described to FIGS. 4 to 6, greatly facilitated , In particular, in the case of spring damper struts having a high weight, support means 185 fixedly mounted on the support plate 164 on the underside of the support plate makes it possible to place such a spring damper leg, so that the load on the mechanic is considerably reduced.

By appropriate adjustment of the position of the support plate 213 with its support plate 214 both in the vertical direction in the horizontal direction is a positionally accurate alignment of both the damper tube of a spring damper leg and the spring plate fixedly attached to this damper tube feasible. In this case, in particular in the vertical adjustment, the height of the spring damper strut be set up such that the damper tube with its spring plate on the top side of the support plate 131 and the front holding jaw 137 in the region of the V-shaped recess 141 just rests. Subsequently, the damper tube, as described for FIGS. 4 to 6, fixed fixed.

Thus, the support device 185 is adjustable in particular on account of the variably adjustable position of the support section 192 on the support section 186 and the fine adjustment by the screw 210 variably on different sized spring damper legs with damper tubes on the one hand of different diameters and on the other hand different length.

8 shows a partial vertical section through a completely mounted clamping device 140 together with a clamping device 220 adapted thereto. First, FIG. 8 shows the actuator 85 of the clamping device 220 with a support element 1 arranged adjustably in its uppermost vertical position on the guide tube 86 via a bearing element 8 The support element 1 has a support element 2, which is arranged rotatably mounted on a bearing journal 21 of the bearing element 8. To fix this bearing element 2 on the bearing pin 21, a bearing plate 27 is mounted frontally and rotatably fixed by means of a mounting screw 26. In the sectional view of Fig. 8 it can be seen that a guide rail 33 perpendicular to the guide tube 86 extending into engagement with the support member 2 is engaged. On the adjusting rail 33, a holding element 39 is provided which is longitudinally displaceable with a guide slot 37 of the adjusting rail 33 is engaged and oriented horizontally in the present embodiment. The holding element 39 receives an upper spring plate 221 of a spring damper leg 222, which are shown in phantom in FIG. 8 only stylized.

Due to the adjustability of the retaining element 39 on the one hand on the adjusting rail 33 and on the other hand, the adjustability of the adjusting rail 33 on the support member 2, the holding element 39 is precisely adjusted to the respective position and size of the upper spring plate 221 of the spring damper 222. In particular, as can be seen from FIG. 8, the holding elements 39 can be arranged symmetrically with respect to the vertical longitudinal central axis 223 of the spring damper strut 222, so that optimum introduction of force to a coil spring 225 of the spring damper strut 222, which is shown only schematically in the drawing, is ensured.

Further, it can be seen from FIG. 8 that the damper tube 176 of the spring damper leg 222 is fittingly received between the V-shaped recesses 141 and 166 and the press lever 153. The pulling spindle 159 was tightened by its operating lever 163, so that a tight fit of the damper tube 176 is effected in the jig 140.

The spring damper leg 222 stands with its damper tube 176 on the support plate 214 of the support plate 213. It can also be seen here that due to the adjustment of this support plate 213 in the direction of arrow 202 on the adjusting nut 200 and the threaded pin 201, the screw 210 and thus the support plate 213 with its support plate 214 concentric with the damper tube 176 of the spring damper leg 222 can be aligned as this is clearly evident from FIG. 8. For this purpose, the stop described in FIG. 7 and / or the annular wall 218 can be provided, between which the damper tube 176 is received in a form-fitting manner. This will, as mentioned above, slipping of the damper tube 176 of the support plate 214, in particular during a positioning movement reliably prevented.

Due to the possibility of vertical adjustment of the support plate 213 with its support plate 214, the damper tube 176 is arranged with a fixed in the upper end of the damper tube 176, lower spring plate 224 such that the spring plate 224 on the upper side of the front plate portion 137 with its V-shaped recess 141 and the upper side on the pressing lever 153 of the clamping device 140 is supported vertically downwards. Thus, this clamping device 140 forms on the one hand a holding device for the damper tube 176 of the spring damper leg 222 and on the other hand, a support member for the lower spring plate 224. Thus, this jig 140 replaces a conventional prior art lower looper element, which either with the spring plate 224 or with a lower spring coil of a spring between the two spring plates 221 and 224 recorded under bias coil spring 225 is inserted.

Furthermore, it can also be seen from FIG. 8 that the two screw heads 196 of the retaining screws 194 in this mounted state project through two vertically adjacent apertures 188 and engage behind the front end wall 187 of the support profile 186.

Furthermore, it can be seen that the clamping device 140 with its mounting section 134 is fixedly arranged on the work surface 135, for example a workbench. This fixed arrangement of the tensioning device 220 ensures extremely easy handling.

Furthermore, the special configuration of the clamping device 140 is designed for a "one-hand operation", so that the mechanic a spring shock absorber leg - also in conjunction with the Supporting device 185 - bring in a very simple manner in the jig 140 and fix it there.

If the support device 185 is used in the embodiment of the clamping device 140 shown in FIG. 8, the clamping device 140 can also be designed without the support plate 164, since vertical alignment of the damper tube 176 is achieved by cooperation of the recess 141 and the pressing lever 153 on the one hand and the adjustable one Backing plate 213 on the other hand ensured in a secure manner.

According to the invention, the invention is not limited to the combination option of the clamping device 140 with the clamping device 220 shown in the exemplary embodiment. Instead of a "spring tensioner", the clamping device 140 can also be combined with other tools, such as, for example, columnar alignment devices for aligning a spring plate or the like.

Furthermore, it can be seen from FIG. 8 that due to the interaction of the clamping device 140 and the support device 185, an absolutely parallel alignment of the spring damper strut 222 with its longitudinal central axis 223 to the actuator 85 takes place, so that slippage, in particular of the holding element 39, is absorbed by a later during the clamping process Federwindung or from a recorded spring plate 221 is safely excluded.

Claims (17)

Device (140) for clamping a tube (176) consisting of a holding jaw (137) which is fixedly mountable on a working plate (135) of a workbench or the like and a pressing lever (153), which with its one end via a bearing head ( 152) is pivotally mounted in a first side region of the holding jaw (137) and a traction spindle (159), by means of which the pressing lever (153) can be pressed against a pipe (176) arranged between the holding jaw (137) and the pressing lever (153),
characterized,
in that the press lever (153) for adjustably receiving the tension spindle (159) has an adjusting nut (158) in the second end region opposite the bearing head (152), which is pivotably mounted on the press lever (153) and,
that the feed shaft (159) at its the holding jaw (137) facing the end provided with a positive locking element (160) with which the feed shaft (159) with a serving as an abutment part (171, 172) of the holding jaw (137) in positive engagement can be brought. Apparatus according to claim 1, characterized in that on the holding jaw (137) a plate-shaped, the worktop (135) directed towards and fixedly mounted on this mounting plate (134) is provided which with the holding jaw (137) forms an integral unit in the form of a holding plate (131). Apparatus according to claim 1 or 2, characterized in that the holding jaw (137) for partially receiving the tube (176) has a V-shaped or arcuate recess (141). Device according to one of claims 1 to 3, characterized in that the V-shaped recess (141) forms two V-legs (142, 143) which extend at an angle of 60 ° to 120 °, preferably 90 ° to each other and .
in that a receiving slot (169) is provided between the V-legs (142, 143), which in use serves to receive a sheet-metal component protruding radially from the tube (176). Device according to one of claims 1 to 4, characterized in that the bearing head (152) of the pressing lever (153) has an adjusting spindle (150), via which the bearing head (152) is in operative connection with an adjusting nut (148) and,
in that the adjusting nut (148) is mounted rotatably and axially immovably on the holding jaw (137) of the clamping device (140). Apparatus according to claim 5, characterized in that for supporting the adjusting nut (148) in a region laterally adjacent to the recess (141) of the holding jaw (137) two below the holding jaw (137) arranged bearing elements (146, 147) are provided. Apparatus according to claim 6, characterized in that the abutment of the holding jaw (137) as a support tab (171) is formed, which in the bearing elements (146, 147) opposite side portion projects outwardly and that the positive locking element of the tension spindle (159) as a tension sleeve (160) is formed, which has a radially widened gutter (162) and,
in that the pressing lever (153) and the pulling spindle (159) are pivotable relative to the holding jaw (137) such that the pulling sleeve (160) engages with its web (162) behind the supporting tongue (171) against the pulling direction (arrow 173). Device according to one of claims 3 to 7, characterized in that arranged laterally next to the V-shaped recess (141) two approximately symmetrically to the recess (141) below the holding jaw (137) and the pressing lever (153) projecting guide leg (144, 145) are provided, between which the tube (176) is receivable during attachment. Device according to one of claims 1 to 8, characterized in that the holding jaw (137) is associated with an additional support plate (164) which is aligned parallel to the holding jaw (137) and,
in that the support plate (164) is provided with a V-shaped or arc-shaped recess (166) whose shape and arrangement corresponds to the V-shaped recess (141) of the holding jaw (137). Apparatus according to claim 9, characterized in that the support plate (164) is positioned on the underside of the bearing elements (146, 147) and the guide legs (144, 145). Apparatus according to claim 9 or 10, characterized in that the holding plate (131) with a receiving bore (132) and the support plate (164) having a concentric with the receiving bore (132) arranged through hole (165) are provided and,
that the receiving bore (132) and the through hole (165) are used for fixed mounting of a tubular body (86) of a clamping or alignment tool. Apparatus according to claim 11, characterized in that between the holding plate (131) and the support plate (164) in the region of the receiving bore (132) and the through hole (165) is provided a spacer (166/1) as a spacer, which together with the support plate (164) on the bearing portion (123) of a tubular body (86) fixed bearing sleeve (122) can be placed. Device according to one of claims 9 to 13, characterized in that the support plate (164) is provided with a laterally projecting support tab (172) which to the support tab (171) of the holding jaw (137) spaced and congruent to the support tab (171) of the holding jaw (137) is arranged and
in that the tension sleeve (160) can be brought into engagement with its collar web (162) simultaneously with the support lug (171) of the holding jaw (137) and the support lug (172) of the support plate (164). Device according to one of claims 9 to 13, characterized in that on the underside of the support plate (164) is provided a support device (185) and,
the support device (185) has a support plate (213) which can be positioned below the accommodated tube (176). Apparatus according to claim 14, characterized in that the supporting device (185) has a vertically downwardly directed support profile (186) on which a horizontally extending support arm (189) is arranged vertically adjustable and,
in that the support arm (189) is provided with an adjustment device (200 to 211) by means of which the support plate (213) can be positioned horizontally and vertically. Device according to one of claims 1 to 14, characterized in that the holding jaw (137) and the pressing lever (153) are provided to the clamped pipe (176) out with a plastic coating or a plastic coating. Apparatus according to claim 16, characterized in that the plastic support is removably attached to the holding jaw or the pressing lever and,
that the plastic overlay has different receiving contours to the exception of pipes of different diameters.

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