EP1317332A1

EP1317332A1 - Clamping tool comprising a displaceable and repositionable fixed clamping jaw

Info

Publication number: EP1317332A1
Application number: EP01976175A
Authority: EP
Inventors: Klemens Degen
Original assignee: Wolfcraft GmbH
Current assignee: Wolfcraft GmbH
Priority date: 2000-09-12
Filing date: 2001-08-31
Publication date: 2003-06-11
Anticipated expiration: 2021-08-31
Also published as: EP1317332B1; ATE281281T1; CA2421926A1; WO2002022312A1; CA2421926C; AU2001295530A1; ES2227282T3; CN1239294C; US6945523B2; CN1452537A; US20040046300A1

Abstract

The invention relates to a clamping tool com-prising a clamping jaw ( 5 ), which is releasably fixed on a rail, preferably at the end ( 2 ) thereof, and which comprises a pin ( 4 ) that passes through an opening of the rail. The clamping jaw is releasably fixed on the rail, whereby, after pulling the pin ( 4 ) out of the opening, the clamping jaw can be fixed at an opening ( 3 ) located at another position of the rail, preferably at its other end by reinserting the pin into an opening ( 3 ) located at that po-sition. A second clamping jaw ( 7 ) is displaceably arranged on said rail ( 1 ). A tightening element ( 8 ) is used to bring the second clamping jaw, according to the location of the first clamping jaw ( 5 ) on the rail ( 1 ), into a clamping position in the direction of the latter or in a direction away from the latter. The aim of the invention is to achieve a simplified changing from one fixing position to another fixing position on the rail. To this end, the pin ( 4 ) is assigned in a captive manner to the first clamping jaw ( 5 ) and is held i the engaged position inside the opening by the force exerted by a spring ( 9 ) that is tensioned when the bolt is pulled out of the opening ( 3 ).

Description

00001 clamping tool with movable and convertible fixed 00002 clamping jaw 00003 00004 The invention relates to a clamping tool with a 00 005 a rail, preferably at the end of which, with 00006 a bolt crossing an opening in the rail, 00007 a chipboard jaw which is releasably fastened so that after the 00008 bolt is pulled out the opening at another point on the 00009 rail, preferably at the other end by inserting the bolt into a hole in that opening 00011, on which rail a second clamping jaw is slidably arranged, which by means of a Spannor00013 goose depending on the arrangement of the first clamping jaw on the 00014 rail can be brought into a clamping position in the direction of the latter 00015 or in the direction away from the latter. Such a clamping tool in the form of a screw Zw19000 ge is known from DE 33 47 232 AI. There, the 00020 clamping jaw, which is firmly connected to the rail, is assigned to a clamping jaw carrier 00022, which protrudes at right angles from the rail. This jaw holder has a 00023 slot. The end of the rail 00024 is inserted into this slot and fastened with a bolt on whose thread 00025 a wing nut is screwed. There is also a 00027 opening at the 00026 other end of the rail. The movable Spanribacke also sits on 00028 a Spanribackträger. The jaw holder is slidable on 00029 of the rail and can remain there in a 00030 tilt position. This tilting position 00031 is achieved when the chipboard jaw sitting at the end of a screw spindle 00032 is brought into a clamping position with respect to the other chipboard jaw 00033. For this purpose, the handle sitting on the other end of the spindle is turned. Is 00035 the fixed jaw fixed to the rail so that 00036 the movable Spanribacke by actuating the clamping

00037 ganes is moved towards the latter, a workshop can

00038 pieces can be clamped between the two Spanribacken

00039 den. On the other hand, is the firm chipboard jaw on the other

00040 side of the rail attached so that the tensioning member

00041 the movable Spanribacke away from the fixed Spanribacke

00042 relocated, the clamping tool acts as an

00043 stuff. 00044

Such a clamping tool is also from the

00046 DE 197 31 579 AI previously known. Here the Spannor

00047 a stepping gearbox with which the entire

00048 movable Spanribackträger by pressing one

00049 pusher gradually moved along the rail

Can be 00050, the movable Spanribacke each

00051 after arranging the fixed Spanribacke away from the latter

00052 or be moved towards the latter. There is also

00053 see, by loosening an opening in the rail

00054 pin the Spanribak- the fixed jaws

00055 either on one or the other

00056 side of the rail to attach it there

00057 gene, so that the clamping tool is either able

00058 is a workpiece between the two chipboards

Pinch, or spread into an opening of a

00060 workpiece to be placed. In the case of the

00061 a clamping tool, a release lever is also provided

00062 hen, which the two Spanribacken from the clamping

00063 lung can solve. This release lever engages in the crotch

00064 manual transmission so that by its actuation

00065 also a relocation of the entire clamping element

00066 is possible. 00067

The object of the invention is to change

00069 of the fixed chipboard from one to the other

Simplify 00070 junction on the rail. The task is solved by the in the claims

00072 specified invention. 00073

00074 Claim 1 provides in particular that the bolt

00075 is captively assigned to the first Spanribacke. He

00076 can therefore be pulled out of the opening of the

00077 rail is not lost. He is also from the

00078 force one when moving the bolt out of the

00079 opening tensioned spring in the engaged position in

00080 held the opening. For loosening the fixed chip jaw

00081 from the rail therefore only needs the bolt

00082 to be shifted against the force of the spring. It takes

00083 no more wing screw can be unscrewed like it

00084 is the case in the prior art. The usage

00085 one ^' loading the bolt into the engaged position

00086 spring also has the advantage that the form fit between

00087 see jaw carrier and rail not emphasized

00088 must be done. The bolt automatically enters the

00089 opening when the jaw is pushed over the rail

00090 and the face of the bolt with the opening

00091 is aligned. According to an advantageous development

00092 coupled to the bolt a push button such that

00093 is displaced by pressure on the same of the bolt.

00094 The coupling is provided so that the pressure

00095 on the push button the bolt out of the opening

00096 relocated. As long as the push button in the pressed

00097 position is maintained, the bolt has come out. Becomes

00098 the push button is released, the bolt can be

00099 occur when they are in alignment with the bolt

00100 lies. To train this advantageous function

00101 it is particularly advantageous if the bolt has a U-shaped

00102 gene bolt member is assigned. He will prefer

00103 from a short leg of this locking member

00104 det. The longer leg of the U-shaped locking element

00105 extends through the Spanribackträger such that he on the 00106 bottom of the push button is attached so that a

00107 Sliding movement of the longer U-leg over the

00108 U-bridge is transferred to the short bolt, so that

00109 this is pulled out of the opening. The feather,

00110 the short leg of the U-shaped locking element

00111 holds in the engaged position, preferably sits in

00112 near the push button. It can be located centrally under the

00113 push button, so that the cushioning of the push button

00114 is also the cushioning of the bolt. The

00115 bolt preferably protrudes through the middle of a

00116 passage shaft for the rail. The U-bridge is

00117 chosen so long that the long U-leg on the

00118 rail crosses the cheek piece. The free end

00119 of the bolt can be in a locked position

00120 opening of the inner wall of the shaft lie so that a

00121 Bending of the bolt due to favorable force application

00122 is avoided when clamping. To an actuation-friendly

00123 arrangement of the push button to reach the sits

00124 longer U-legs not centered on the push button, but

00125 the eccentric. As a result, the push button is

00126 table in a covered position of the rail. At the back

00127 side of the push button on which the spring and the

00128 longer U-leg sits, can also be a diving extension

00129 may be arranged. Between this diving process and the

00130 longer U-leg, the spring can sit. The process

00131 lies in one when the push button is held down

00132 broadside recess of the first jaw, which is

00133 is located below the push button. The push button

00134 can be provided as an exposed part. But it is

00135 also provided that the push button in a pot

00136 gen opening of the broad side of the Spanribackentträger

00137 lies. As a result, an unwanted actuation of the

00138 push button prevented. The cup-shaped opening can

00139 be surrounded by the wall of a sleeve. The front edge

00140 this sleeve is aligned in the locked position 00141 the surface of the push button. The web opposite the push button 00142, which connects the plunger to the bolt 00143, is also in a housing recess. It is also provided here that the end edge of the wall of this housing recess is aligned with the surface of the 00146 web. 00147 00148 Embodiments of the invention are explained below 00149 with reference to the accompanying drawings. 00150 00151 FIG. 1 shows a first exemplary embodiment of the invention 00152 in which the clamping tool is a screw clamp 00153, 00154 00155 FIG. 2 shows the exemplary embodiment according to FIG. 1 with a fixed chipboard jaw implemented with 00156, 00157 00158 FIG. 3 shows a side view of the fixed chipboard jaw, 00159 00160 Fig. 4 is a front view of the fixed Spanribacke, 00161 00162 Fig. 5 is a rear view of the fixed Spanribacke, 00163 00164 Fig. 6 is a section along the line V-VI in Figure 2, 00165 00166 Fig. 7 shows a representation according to Figure 6 pressed 00167 pusher, 00168 00169 FIG. 8 shows a section along the line VIII-VIII in 00170 FIG. 6, 00171 00172 FIG. 9 shows a second exemplary embodiment of the invention, 00173 in which the clamping tool is designed as a one-hand clamping pin 00175 with a return movement function 00175, 00176 FIG. 10 shows a further embodiment of a movable

00177 chen Spanribacke in the side view, 00178

00179 FIG. 11 shows a sectional illustration similar to FIG. 6

00180 of the embodiment shown in FIG.

00181 example, 00182

00183 Fig. 12 is a plan view of the push button and

00184

00185 Fig. 13 is a bottom view of the web.

00186

00187 The clamping tool according to the invention has a rail

00188 1 onto which a movable clamping jaw 7 is shifted

00189 den. Opposite the movable jaw 7

00190 a fixed Spanribacke 5 is arranged. The fixed tension

00191 jaw 5 is firmly attached to one end 2 of the rail

00192 bound. A bolt 4 is used for connection, one

00193 passes through opening 3 of the rail 1. By pulling it out

00194 of the bolt 4 can the clamping jaw 5 carrying the clamping jaw

00195 jaw carrier 10 are removed from the end 2 of the rail

00196 and so on the other end 6 of the rail 1

00197 is that the movable Spanribacke 6 of the

00198 fixed Spanribacke 7 points. 00199

00200 The movable chip jaw 7 is also by means of a

00201 jaw holder 15 attached to the slide rail 1.

00202 For this purpose, the jaw holder 15 forms in a known manner

00203 way (see. DE 33 47232) from a cuff through

00204 which the rail 1 is inserted. Is on the clamping

00205 jaw carrier 15 a torque in the clamping direction

00206 practices. so the cuff 4 cant on the

00207 ne 1. The Spanribackträger 15 is then fixed in position.

00208 The Spanribackträger 15 has at its free end

00209 a threaded hole. Through this tapped hole

00210 a spindle 13 inserted. At one end of the spindle 00211 13 is the movable Spanribacke on the other

00212 ren end of the spindle 13 is a handle 14th

00213 If the handle 14 is rotated, the movable

00214 Spanribacke 7 either in the spread position or in the

00215 clamping position shifted. Spindle 13 and jaw support

00216 ger 15 are elements of the clamping element 8. 00217

00218 In the embodiment shown in Figure 9

00219 is structurally the same fixed jaw 10

00220 det, as in the first embodiment, which the

00221 Figures 1 and 2 shows. It is the firm one there too

00222 clamping jaw 5 supporting chipboard jaw carriers with one through

00223 aisle shaft 21, in which the rail 1

00224 can protrude into it, so that the through shaft 21

00225 crossing bolt 4 through the opening 16 of the rail 1

00226 can protrude so that the Spanribackträger 10 either

00227 can be fixed at end 2 or end 3 of the rail

00228 can. 00229

00230 The tensioning element 8 is designed here as a gear housing.

00231 det. It carries the movable jaw 7 on one

00232 side and three handles on the other side. One grip

00233 22 is a handle. One adjacent to the handle 22

00234 lying handle is a pusher 23. Will on this

00235 pusher pressed, the movable clamping

00236 bake 7 towards the end 3 of the rail.

00237 as a result of the transmission described in DE 19731579

00238 bes, the lever-actuated relocation

00239 locked. The backstop can be activated by pressing the

00240 release lever 24 are lifted. As a result of the special

00241 gear design (DE 19731597) causes another

00242 Actuate the release lever 24 so that it is the whole

00243 tensioning element 8 shifted in a reverse direction. 00244 00245 While the rail is preferably made of metal,

00246 the Spanribackträger 10 is designed as an injection molded part

00247 forms. The Spanribacke 5 can be made of a soft plastic

00248 coating formed. The through shaft 21 has

00249 a stop recess for a rail-fixed attachment

00250 impact 16, which is positioned so that the

00251 striking position of the bolt 4 with the opening 16 of the

00252 Notes are in alignment. 00253

00254 The bolt 4 crosses in the engaged position

00255 shaft 21 approximately in the middle. The free end 4 '

00256 of the bolt 4 enters a broadside opening 26

00257 of the through shaft 21. The bolt 4 is the

00258 shorter U-legs of a U-shaped locking member 12.

00259 This is composed of several components

00260 The U-web of the multi-part locking member 12 is in

00261 the engagement position in a slot recess

00262 jaw support broad side so that it does not come out of the

00263 cheek piece broad side emerges. The longer U-Schen-

00264 kel of the locking member 10 extends through the entire width

00265 of the jaw support 10 and sits with its free end

00266 firmly on an eccentric extension 18 of a push button

00267 fes 11, which is on the other broad side of the

00268 jaw holder 10 is located. Around the center of the

00269 push button 11 is on the back of one

00270 compression spring 9, which is also in the engaged position

00271 is stretched. The compression spring 9 is supported on the rear

00272 te of the push button and on the bottom of a spring

00273 chamber 25 from. On the back of the button is also

00274 a diving extension 19 is arranged, the extension 18th

00275 opposite and which when the push button is pressed

00276 immersed in a recess 20. 00277

00278 If the push button 11 is actuated, the spring 9

00279 further compressed. It can completely absorb 00280 are located in the spring receiving chamber so that the rear

00281 te of the push button 11 laughs on the broad side of the

00282 jaw holder rests. The extension 19 is there

00283 completely inserted into the recess 20 assigned to it

00284 dives. In this position, shown in FIG. 7,

00285, the web 32 of the U-shaped locking member 12 is fully

00286 stepped out of his deepening and stands

00287 above the broad side of the jaw holder. The

00288 free end 4 of the bolt 4 is assigned to it

00289 broadside recess 28 emerged and lies in

00290 the channel assigned to it outside the cross-sectional

00291 surface of the through shaft 21, so that in this

00292 position of Spanribackträger 10 removed from the rail

00293 can be pulled. 00294

00295 If the jaw holder is put back on the rail

00296 sets, it will be in any sliding position

00297 the push button is relieved of pressure. As a result,

00298 the spring 9 the free end 4 'of the bolt 4 against the

00299 broadside of rail 1 presses. If the clamping jaw

00300 carrier 10 pushed in this state over the rail,

00301 the free end 4 'enters the rail opening 3

00302 when the opening 3 is aligned with the bolt 4. 00303

00304 In the embodiment shown in FIGS.

00305 example, both the web 32 and the

00306 the web 32 opposite push button 11 each in

00307 housing recesses 27.31. The housing recess

00308 31, which receives the spring 9 and the push button 11

00309 is assigned a pot shape. The pot wall

00310 is formed in a sleeve 29. In the locked 00311 ^' position, as shown in FIG. 11,

00312 the end edge of the wall 29 is flush with the surface

00313 before the push button 11. Aligned in this position

00314 also the surface of the push button 11 opposite 00315 opposite web 32 with the surface of a the web

00316 32 receiving housing recess 27 surrounding wall

00317 30. 00318

00319 The one in an eccentric position with the back

00320 of the push button 11 connected plunger 17 is by means of

00321 a fastening screw 28 with the bolt 4th

00322 supporting web 32 connected. While the recess 31

00323 has a circular cross-section, the recess has

00324 tion 27 an elongated cross section. As a result of the

00325 would take the push button 11 in a pot-shaped recess

00326 tion 31 is a misuse protection. The

00327 push button must be in the pot-shaped recess 31

00328 be such that in the shifted position

00329 the wall 29 of the pot over the surface of the pressure

00330 button 11 protrudes. 00331

00332 All disclosed features are (in themselves) inventive

00333 considerably. In the disclosure of the registration is hereby

00334 also the disclosure of the associated / attached

00335 priority documents (copy of pre-registration) fully

00336 included in content, also for the purpose of features

00337 of these documents in claims of this application

00338 to include. 00339

Claims

00340 claims 0034100342 1. Clamping tool with one on a rail (19), preferably 00343 the end (2). with a bolt (4) crossing an opening 00344 (39 of the rail), so that the chipboard jaw (5) can be moved to another location 00347, preferably at the other, after the 00346 bolt (4) has been pulled out End by 00348 inserting the bolt into an opening (3) 00349, on which rail (1) a second 00350 Spanriback (7) is slidably arranged, which00351 by means of a clamping element (8) depending on the arrangement of the 00352 first Spanribacke (5) on the Rail (1) can be brought into a clamping position 00353 in the direction of the latter or in the direction away from the latter, 00355, characterized in that the bolt (4) is captively assigned to the first clamping jaw 00356 (5) and the force of one upon removal 00357 shift the bolt from the opening (3) tensioned 00358 spring (9) is in the engaged position in the opening 00359 th 0036000361 2. Clamping tool according to claim 1 or in particular 00 362 thereafter, characterized by a push button (11) coupled to the bolt (4) 00363 in such a way that the bolt (4) is displaced by pressure 00364 thereon. 0036500366 3. clamping tool according to one or more of the preceding claims-00367 or in particular according thereto, marked-00368 net, by a U-shaped locking member (12), the 00369 shorter U-leg of which forms the bolt (4) and its 00370 longer U-jig (17) crosses the 00371 cheek outside the rail and at the end wears the push button (11). 0037200373 4. Clamping tool according to one or more of the preceding claims or in particular according thereto, characterized in 00375 that the bolt (4) has a jaw carrier (10) carrying the Spannbak-00376 ke (5) approximately in the middle 00377 of a through-shaft (21 ) for the rail (1) 00378 crosses. 0037900380 5. Clamping tool according to one or more of the preceding claims-00381 or in particular according thereto, characterized 00382 in that the free end (4 ') of the bolt (4) 00383 in the locking position lies in an opening (26) in the 00384 inner wall. 0038500386 6. Clamping tool according to one or more of the preceding claims-00387 or in particular according thereto, characterized 00388 in that the longer U-leg (17) is eccentrically-attached to 00389 on the push button (11). 0039000391 7. Clamping tool according to one or more of the preceding claims or in particular according thereto, characterized in 00393 that the push button (11) can be displaced against the force of a central spring (9). 0039500396 8. clamping tool according to one or more of the preceding claims or in particular according thereto, characterized 00398 net by a diving extension (19) arranged on the back of the push button (11) 00399, which, when the push button (11) is held in, pressed into a broad side -00401 tion (20) of the first jaw is immersed. 0040200403 9. Clamping tool according to one or more of the preceding claims or in particular according to it, 00405 characterized in that the U-web of the bolt (12) lies in the 00406 locking position in a housing recess (27) 00407, and emerges from it when unlocked. 0040800409 00410 10. Clamping tool according to one or more of the preceding claims or in particular according to it, characterized 00412 in that the push button (11) lies in a special pot-shaped recess (31). 0041400415 11. Clamping tool according to one or more of the preceding claims or in particular according to it, 00417 characterized in that the pot-shaped recess (31) 00418 is surrounded by a sleeve-shaped wall (29), 00419 the front edge of which is connected to the surface of the push button 00420 (11) flees. 0042100422 12. Clamping tool according to one or more of the preceding claims or in particular according thereto, characterized 00424 in that the surface of the web (32) opposite the push button 00425 (11) also has the 00426 end edge of a 00427 wall (30) surrounding the housing recess (27). flees. CHANGED CLAIMS [received at the International Bureau on January 31, 2002 (January 31, 2002); original claims 1 to 12 new claims 1 to 11 replaced (3 pages)]

1. Clamping tool with a clamping jaw (5) detachably fastened to a rail (19), preferably the end (2) thereof with a bolt (4) crossing an opening (39) of the rail, such that it comes on after pulling out the bolt (4) the opening (3) at another point on the rail, preferably at the other end, can be fastened by inserting the bolt into an opening (3) there, on which rail (1) a second clamping jaw (7) is slidably arranged, which by means of a Depending on the arrangement of the first clamping jaw (5) on the rail (1), the clamping member (8) can be brought into a clamping position in the direction of the latter or in the direction away from the latter, characterized in that the bolt (4) cannot be lost from the first clamping jaw (5 ) and is held by the force of a spring (9) tensioned in the engagement position in the engagement position when the bolt (4) is moved out by pressing a pushbutton (11) coupled to the bolt (4) out of the opening (3).

2. Clamping tool according to claim 1, characterized by a U-shaped locking member (12), the shorter U-leg forms the bolt (4) and the longer U-leg (17) crosses the jaw outside the rail and at the end the push button (11 ) wearing.

3. Clamping tool according to one of the preceding claims, characterized in that the bolt (4) crosses a jaw carrier (10) carrying the clamping jaw (5) approximately in the middle of a through-shaft (21) for the rail (1).

4. Clamping tool according to one of the preceding claims, characterized in that the free end (4 ¹ ) of the bolt (4) is in the locking position in an opening (26) of the inner wall of the shaft.

5. Clamping tool according to one of the preceding claims, characterized in that the longer U-leg (17) is attached eccentrically to the push button (11).

6. Clamping tool according to one of the preceding claims, characterized in that the push button (11) can be displaced against the force of a central spring (9).

7. Clamping tool according to one of the preceding claims, characterized by a plunging extension (19) arranged on the back of the push button (11) which, when the push button (11) is held in, plunges into a broadside recess (20) of the first jaw.

8. Clamping tool according to one of the preceding claims, characterized in that the U-web of the bolt (12) is in the locking position in a housing recess (27) and emerges from this when unlocking.

9. Clamping tool according to one of the preceding claims, characterized in that the push button (11) lies in a cup-shaped recess (31) in particular.

10. Clamping tool according to claim 9, characterized in that the cup-shaped recess (31) is surrounded by a sleeve-shaped wall (29), the end edge of which is flush with the surface of the push button (11).

11. Clamping tool according to one of the preceding claims, characterized in that the surface of the web (32) opposite the push button (11) is also flush with the end edge of a wall (30) surrounding the housing recess (27).