EP2845693B1 - Système adaptateur pour un outil - Google Patents

Système adaptateur pour un outil Download PDF

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Publication number
EP2845693B1
EP2845693B1 EP14180224.9A EP14180224A EP2845693B1 EP 2845693 B1 EP2845693 B1 EP 2845693B1 EP 14180224 A EP14180224 A EP 14180224A EP 2845693 B1 EP2845693 B1 EP 2845693B1
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EP
European Patent Office
Prior art keywords
clamping
lever
pawl
tool holder
clamping lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP14180224.9A
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German (de)
English (en)
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EP2845693A1 (fr
Inventor
Hermann Baur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hermann Baur AG
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Hermann Baur AG
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Publication date
Application filed by Hermann Baur AG filed Critical Hermann Baur AG
Publication of EP2845693A1 publication Critical patent/EP2845693A1/fr
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Publication of EP2845693B1 publication Critical patent/EP2845693B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/24—Locking and securing devices comprising clamping or contracting means acting transversely on the handle or socket

Definitions

  • the present invention relates to an adapter connection for a tool holder according to the preamble of claim 1.
  • an adapter device for a tool device in particular for a garden tool
  • the adapter device comprises an adapter body and the adapter body comprises a receptacle for a tool holder or a tool.
  • On or on the adapter body is a clamping device with a clamping lever for backlash-free clamping in the Recording recorded tool holder arranged.
  • the clamping lever is pivotable between a release position and a clamping position.
  • a locking device is provided to lock the clamping lever in the clamping position, wherein the locking device is arranged on the clamping lever.
  • the tool holder may in this case be a holder or section of any desired tool insert, for example a saw or a pair of scissors, a washing brush or a hook or another tool, wherein, as explained below, in a development of the invention, particular embodiments of tool holders or Tool inserts are preferred.
  • a handle element a device handle is provided with a length of up to 1m, 2m, 3m or 4m or more. The adapter device is therefore particularly advantageous for tool device with a long device handle.
  • the device handle is designed to be telescopic.
  • a device handle made of aluminum, glass fiber or carbon hollow profiles which in particular is telescopic and can have a length of up to 4m, 6m, 8m or 10m, 20m or more.
  • the clamping lever is in this case designed as a two-armed clamping lever with a gripping portion and an engagement portion. Length relationships of the two lever arms, as well as their angular position relative to one another, are selected such that an ergonomic grip situation is created and an optimal pressing or clamping force can be applied to the tool used.
  • the adapter body preferably has a substantially hüslenförmigen receiving portion with the distally disposed receptacle for the tool holder.
  • This receiving portion preferably has a laterally (radially with respect to the longitudinal axis of the adapter body) arranged passage opening which is arranged so that a Engaging portion of the arranged on the adapter body clamping lever can press through the passage opening into the receptacle on the inserted tool or the tool holder used.
  • a locking device which comprises a pivotable pawl.
  • This pawl is between a locking position in which a pivoting of the clamping lever is blocked from its clamping position in its release position, and a pivotal position in which a pivoting of the clamping lever is released from the clamping position in its release position, pivotally mounted on the clamping lever.
  • the pawl is preferably also formed as a two-armed lever with an actuating portion and a blocking portion.
  • the pawl is frontally on the clamping lever angeachst.
  • the pawl is mounted between two in the distal direction of the frontal end of the clamping lever projecting latch straps in a latch recess. If the pawl is in the blocking position, then the blocking section or the relevant line of force extends substantially perpendicular to a corresponding stop surface on the adapter body.
  • the adapter body side stop surface of the pawl pivot axis is slightly upstream in the distal direction.
  • the adapter-body-side abutment surface preferably adjoins directly to a distal end of the passage opening for the clamping lever.
  • the pawl is held by a arranged between the clamping lever and the pawl spring element in the locking position and against the spring element force of this spring element by hand in the pivot position pivotally. It is therefore preferred if the pawl abuts with the actuating portion under pretension on the upper part of the distal lever end face and is pivotable against a force acting between the actuating portion and the lever tension spring or acting between the blocking portion and the lever compression spring.
  • the actuating portion of the pawl projects upwards over the lever.
  • the operating section is easily accessible.
  • the lever has a trough-like recess adjoining the actuating section in the proximal direction such that the actuating section can be actuated out of this recess.
  • a tool device with a tool holder and an adapter device described herein in that the tool holder has a clamping portion which can be inserted into the receptacle.
  • the clamping section has a preferably centrally arranged with respect to a longitudinal extent of the clamping portion and extending transversely to this longitudinal extent extending recess or recess for receiving the projecting into the receptacle clamping lever portion of the clamping lever.
  • the groove and the einragende clamping lever portion are complementarily shaped, wherein the protruding clamping lever portion is formed as a part-circular cylindrical bulge. This additionally improves the backlash-free clamping.
  • the clamping portion is laterally unilaterally in the proximal region, preferably flattened from the groove to a proximal end of the clamping portion, wherein the clamping lever engages in the release position in the receptacle, that the clamping portion only with the clamping lever oriented flattened area in the Recording is insertable.
  • the clamping portion has a cavity, in particular a longitudinal slot in such a way that the engaging clamping lever presses elastically resiliently on the clamping portion.
  • the cavity is thus preferably mounted below the groove or indentation for the clamping lever, so that the clamping portion cooperates resiliently with the engaging clamping lever and under predefined bias the tool or clamps the tool holder without play.
  • the clamping portion has a parallel to the longitudinal axis of the clamping portion extending support wall and a longitudinal slot of the support wall spaced clamping wall, wherein the groove is provided as a recess (on an upper side) in the clamping wall and wherein the longitudinal slot offset from the support wall against the clamping wall offset into the clamping section is introduced.
  • the longitudinal slot is thus preferably offset with respect to the central, ie central longitudinal axis of the clamping portion, for example, 1 to 3 millimeters or more, depending on the material.
  • the support wall then has a greater material thickness than the clamping wall. This is advantageous because such an optimal suspension of the clamping wall is provided, while the support wall generates corresponding stability.
  • the adapter body has a lateral slot in the mouth region of the receptacle.
  • This slot-like notch extends on an inside of the receptacle.
  • the slot extends for about 5 to 10 millimeters in the proximal direction, the slot being about 3 to 5 millimeters wide.
  • the slot is configured continuously from the inside to the outside of the receiving portion.
  • the clamping portion of the tool holder has a pin or comb which protrudes laterally from the clamping portion, that the pin is guided during insertion of the tool holder in the tool holder in the mentioned slot and guided the last portion of the insertion movement through slot and pin or comb in the correct rotational position is.
  • the pin protrudes about 5 millimeters laterally beyond the clamping portion.
  • This pin is preferably made of metal and found in a blind hole in the clamping section. The pin is inserted in the clamping section, that the pin can be inserted only with the correct relative rotational position between the adapter body and tool holder in this slot and otherwise pending on the adapter body and prevents further insertion.
  • slot and pin act as a radial fine positioning for the rotational position of Clamping section in the receptacle of the adapter body. This is particularly advantageous, as it prevents further so that the user presses the clamping lever under the wrong rotational position on the clamping portion, which unnecessarily wears the clamping lever.
  • the pin can also be designed as a comb and the slot as a groove, wherein pin / comb can also be attached to the adapter body and a corresponding slot can be introduced in the clamping section.
  • a preferred tool device thus provides that the receiving section has at least one slot running in the proximal direction in a distal muzzle surface and the clamping section has at least one laterally projecting from the clamping portion pin which is formed and arranged on the clamping portion such that the pin at the correct rotational position the clamping portion in the receptacle (retractable into this slot and thus the insertion movement of the clamping portion in the receptacle is feasible.
  • the inventive device is particularly advantageous because a decrease in the tool holder or the tool, for example.
  • particularly simple, fast and safe can be made without a screw or the like. must be solved.
  • the assembly of the tool in the exception is correspondingly simple, fast and safe.
  • FIGS. 1 to 6 Now, a particularly preferred embodiment of an inventive adapter device 1 will be described. Moreover, a tool device 0 with such an adapter device 1 and a tool holder 3 will be described.
  • FIG. 1 shows the tool device 0 with the adapter device 1 and the Tool holder 3 in a side view
  • FIG. 2 shows the same item in a top view.
  • the relative length ratios of the object according to the Figures 1 and 2 are preferred, but can also be varied.
  • the adapter device 1 has an adapter body 10 with a clamping device 2.
  • the adapter body 10 serves as a connection between the tool holder 3 and a holding element, for example a stem (not shown).
  • a clamping device 2 the tool holder 3 on the adapter body 10 releasably fixed.
  • the elongated adapter body 10 has at its proximal portion (left in FIG. 1 ) to a connecting portion 100, at which in the distal direction (to the right in FIG. 1 ) connects a receiving portion 11.
  • the connecting portion 100 and the receiving portion 11 are formed together as a one-piece adapter body 10.
  • a material for example, plastic or metal can be used.
  • the connecting portion 100 has a substantially polygonal cross-section, is of substantially parallelepiped shape and serves to connect the tool holder 3 with the holding element.
  • the connecting portion 100 or the adapter body 10 may also have an oval or round, in particular circular or another cross section.
  • the connecting portion 100 has in the proximal half with respect to its longitudinal direction a proximal attachment hole 101 and a distally distally spaced distal attachment hole 102 for attachment to the support member.
  • the connecting portion 100 widens laterally via a step in the receiving portion 11.
  • This cross-sectional widening is formed in such a stepped shape that a proximal direction directed stop surface 115 is provided for the holding element.
  • the receiving portion 11 further comprises a blind hole-like distal recording 12 with a distal mouth or receiving opening 121 for receiving the tool holder 3, or parts thereof.
  • the receptacle 12 has a circular cross section (diameter about two centimeters) and extends approximately 7 inches deep into the receiving portion 11.
  • the circular cylindrical receptacle 12 tapers to the last millimeters of its depth.
  • the receiving portion 11 has a substantially rectangular outer Cross section (see also FIG. 2 ).
  • the adapter body 10 surrounds the pin-like clamping portion 4 of the tool holder 3 substantially completely.
  • lever tabs 110 On a lateral outer surface of the receiving portion 11, two laterally projecting lever tabs 110 arranged parallel to each other over a distance are arranged. These lever tabs 110 protrude into Fig. 1 up and in Fig. 2 out of the drawing plane.
  • the lever flaps 110 are plate-shaped, rounded at the top supernatants and have centrally on a flat side a recess for receiving a pivot axis 210.
  • the pivot axis 210 thus extends between the mutually facing recesses in the lever tabs 110th
  • a lever 21 is pivotally mounted.
  • the lever axis 210 is transverse to the longitudinal extent of the adapter body 10; the lever 21 is thus pivotable about the axis 210 in the longitudinal direction of the adapter device 1.
  • the lever 21 is made of aluminum; Alternatively, it can also be made of plastic or another correspondingly stable material or a mixture of materials.
  • the lever 21 is part of the clamping device 2 and designed as a two-armed clamping lever.
  • the lever 21 has a gripping portion 211 and an engaging portion 212.
  • the gripping portion 211 serves as a handle for actuating the clamping device 2, so it is designed for manual operation.
  • the gripping portion 211 is curved at its end portions against the adapter body 10, while a central portion extends approximately parallel to the longitudinal axis of the adapter body 10 when the lever 21 is in the clamping position. Between a proximal bend portion 22 and a distal bend portion of the lever 21, a penetration opening 220 for a user's hand is left exposed.
  • the engagement portion 212 clamps the tool holder 3 in the receptacle 12, so it is designed for clamping engagement in the receptacle 12.
  • the gripping portion 211 and the engaging portion 212 each form one arm of the two-armed lever 21.
  • the lever 21 is integrally molded.
  • the tool holder 3 has a clamping section 4 and a tab element 5 adjoining the clamping section 4 in the distal direction.
  • the substantially circular cylindrical (diameter about 20 millimeters) clamping portion 4 is formed correspondingly complementary to the engagement in the receptacle 12.
  • the elongated one Tab member 5 is connected in the distal direction via a circular cylindrical (diameter about 25 millimeters) contact portion 57 with the elongated clamping portion 4.
  • the contact portion 57 has in the proximal direction in a circumferential step-like cross-sectional constriction on the clamping portion 4.
  • This step has a height of about 2 to 3 millimeters and defines a stop face 114 pointing in the proximal direction for the (temporary) stop of the tool holder 3 or the contact section 57 on the receiving section 11 of the adapter body 10.
  • the lever 21 strikes it on surface 114 before it is braced by the lever 21. If one clamps the clamping portion 4 of the tool holder 3 by retracting the bulge 213 of the lever 21 in the groove 44, then this lever engagement defines the longitudinal position of the tool holder 3 with respect to the adapter body 10 and the stop on surface 114 is released.
  • the lever 21 lifts when jamming so the stop between the stop surface 114 and the adapter body 10, so that a gap is formed by the stop surface 114 to the adapter body 10.
  • this lever engagement thus acts as a stop for the clamping portion 4 in both directions, in the distal and the proximal direction.
  • a length of the clamping portion 4 and the depth of the receptacle 12 are dimensioned such that this stop on surface 114 defines the inserted position of the tool holder 3.
  • the length of the clamping portion 4 is about 6 centimeters.
  • the contact portion 57 In the distal direction extend from the contact portion 57, which has a flat cross section, two parallel and plate-like tab portions 53 and 54 on. These tab portions 53 and 54 are perpendicular to the contact portion 57 in the distal direction protruding and about four millimeters thick plates with a height of about 20 millimeters and a length of about 46 millimeters. The distal ends of the plates 53, 54 are free-standing and have curves 55. Between the tab portions 53 and 54, a 1-2 mm wide, continuous gap 58 is formed.
  • the contact section 57 is rounded in the proximal direction, parallel to the lateral flat sides, with a rounded or tapered section 56.
  • the tab portions 53, 54 have a first proximal attachment hole 51 and a second attachment hole 52 distally spaced therefrom.
  • These holes 51, 52 may have a diameter of about 6 millimeters and are intended for further attachment of a tool part, for example a blade.
  • Other fastening devices on the tab element 5 are conceivable here.
  • a tool to the clamping portion 4 and the contact portion 57 may be formed or otherwise secured thereto.
  • the clamping portion 4 of the tool holder 3 is formed with a recess 44 and the lever 21 with a complementarily shaped convex bulge 213.
  • This convex bulge 213 is formed part-circular cylindrical, wherein the groove 44 is formed so complementary that the bulge 213 the blanket portion 4 in the throat 44 contacted over the entire area and fed. Appropriate proximal and distal end edges of the bulge 213 are rounded so that the lever 21 does not get caught when swung into the groove 44.
  • the clamping portion 4 of the tool holder 3 has in the longitudinal direction in the middle of the side engaging laterally from a groove or recess 44.
  • This groove or indentation 44 is part-circular in cross-section, with a radius of about 14 millimeters; a cylindrical axis of the groove 44 is transverse to the longitudinal extent of the clamping portion 4.
  • This Kehlung or clamping recess 44 thus extends transversely to the longitudinal axis of the adapter body 10 on an upper side (top is above in Fig. 4 ) of the clamping portion 4.
  • This clamping recess 44 serves as an engagement recess for receiving the complementarily configured with the convex bulge 213 engagement member 212 of the lever 21.
  • the engagement member 212 is in particular fed into this groove 44 swiveled, allowing a backlash-free clamping.
  • the adapter device 1 is provided with an orientation aid, which ensures a correct insertion of the tool holder 3 in the adapter body 10.
  • the clamping portion 4 is proximal of this groove 44 at its top (top in Fig. 1 ), ie the distributed over the circle radius clamping section material is about 0.2 to 2 millimeters, preferably about 1.2 millimeters deep removed from the circumference circle.
  • This flattening 123 of the clamping portion 4 serves as an aid to the correct orientation of the tool holder 3 in the receptacle 12.
  • the engaging on the clamping portion 4 engaging member 212 is pivoted at a pivoting of the lever 21 from a clamping position to a release position of the throat 44.
  • an edge portion 218 protrudes so far against the clamping portion 4 that the edge portion 218 engages in the flattened region forming, circular segment-shaped recess 122; this recess 122 is thus an orientation recess.
  • a symmetry of the clamping portion 4 is partially broken along its cross-sectional circumference.
  • the edge portion 218 extends in the direction transverse to the longitudinal extent so far in said orientation recess 122 that a rotation of the inserted clamping portion 4 is blocked in the receptacle 12 about the longitudinal axis of the receptacle 12.
  • the projecting edge portion 218 breaks a symmetry of the receptacle 12 along its cross-sectional circumference.
  • the clamping portion 4 can now be inserted into the receptacle 12, the relative rotational position between the clamping portion 4 and receptacle 12 must match.
  • this flattening 123 of the clamping portion 4 or the orientation opening 122 in interaction with the edge portion 218 of the engagement portion 212 defines a correct rotational position in which the clamping portion 4 can be inserted into the depth of the receptacle 12 behind the edge portion 218.
  • the orientation aid only engages when the tool holder 3 is already halfway inserted into the receptacle 12.
  • the tool holder 3 can be inserted about halfway, then rotated in the correct rotational position and finally completely inserted.
  • the clamping portion 4 is inserted into the receptacle 12 in the wrong rotational position, he is soon on the projecting into the receptacle 12 edge portion 218 of the standing in the release position lever 21 and is blocked; the user notices that the clamping portion 4 must now be rotated so that it can be further brought into the receptacle 12 in clamping position. If the lever 21 is in the clamping position, then the convex bulge 213 projects so deeply into the adapter body 10 or the receptacle 12 that the clamping section 4 does not protrude beyond the bulge 213 of the lever 21 into the housing Depth of the recording is insertable; the user notices that the clamping lever 21 is first to be guided into the release position. Thus, the correct rotational position in the introduction of the clamping portion 4 is mandatory given by the interaction between the clamping lever 21 and the tool holder 3.
  • the clamping portion 4 which pin-like formed into the receptacle 12 insertable and can be clamped there with the lever 21 is clamped without play.
  • the essentially fully cylindrical clamping section 4 which as described above, flattened on the upper side and provided with a groove 44, in a further development, a cavity in the form of a longitudinal slot 42.
  • This longitudinal slot 42 is about 4 to 6 inches long and 6 to 7 millimeters, especially 6.5 millimeters high.
  • the longitudinal slot 42 extends parallel to the longitudinal axis of the clamping portion 4 and extends over about 70 to 85% of the length of the clamping portion 4.
  • the slot 42 is inserted laterally (transversely to the longitudinal axis of the adapter body 10) continuously in the clamping portion 4.
  • Slot 42 has a proximal slot 421 and a distal slot 422.
  • the clamping portion 4 seen from below upwards in the sectional view according to Fig. 1 a lower support wall 41 and an over the longitudinal slot 42 spaced upper support wall, wherein the upper support wall serves as a clamping wall 43.
  • the lower support wall 41 forms the lower boundary of the slot 42.
  • the clamping wall 43 has the groove 44 and the abovementioned flattening 123 on the upper side and forms an upper boundary of the slot 42 on the underside.
  • the clamping wall 43 has a thin point 430 below the throat 44. In the case of an engagement element 4 made of aluminum, this thin spot is approximately 2 to 3 millimeters, in particular approximately 2.5 millimeters thick.
  • the longitudinal slot 42 is offset by approximately 0.5 to 1.5 millimeters, in particular by 0.75 millimeters, against the clamping wall 43. This allows the support wall 41 is correspondingly stable and the clamping wall 43 sufficiently resilient, so that a secure and backlash-free connection between the tool holder 3 and adapter body 10 can be produced.
  • the proximal and the distal end portion of the clamping portion 4 are connected only via this lower support wall 41 and the clamping wall 43 with each other, since Slot 42 laterally configured throughout.
  • the proximal end of the clamping portion 4 is also chamfered, ie end edges are refracted in the proximal direction tapering with a chamfer.
  • the longitudinal slot 42 forming a cavity in the clamping section 4 the reception of the convex bulge 213 in the groove 44 is now elastically resiliently improved.
  • the engagement portion 212 engages the throat 44 with radially inwardly directed pressure on the clamping portion 43
  • the clamping portion 43 elastically deforms into the cavity of the slot 42, for example about 0.2 millimeters. This improves the surface pressure and further reduces play of the tool holder 3 in the receptacle 12.
  • the load on the lever pivot axis 210 and the rotary joint formed thereby is reduced. Any dimensional tolerances are also compensated by this spring effect, without significantly worsening the clamping action.
  • a pivotable pawl 26 is arranged distally of the lever pivot axis 210.
  • This pawl 26 serves to secure the lever position of the lever 21; In particular, it prevents unintentional opening of the clamping lever 21 from the clamping position.
  • the lever 21 can be locked.
  • the pawl 26 is pivotally mounted on a lever 21 between a blocking position and a pivoting position. Is the lever 21 in clamping position ( Figs. 3-5 ), the pawl 26 is pressed by a spring element 270 in the locked position. Thus, the clamping position of the lever 21 is automatically secured.
  • the pawl 26 is designed as a two-armed lever and arranged at a distal end portion (that is, the front side) of the lever 21.
  • a longitudinal direction of the pawl 26 extends substantially perpendicular to the longitudinal direction of the lever 21st
  • the pawl 26 is arranged in a pawl recess 215 between two in the distal direction of the lever 21 projecting latch tabs 216 and forms the front end of the distal end portion of the lever 21.
  • a pawl pivot axis 260 is mounted in recesses of said latch straps 216.
  • the pawl pivot axis 260 extends parallel to the lever pivot axis 210 and transversely to the longitudinal axis of the lever 21st
  • the pawl pivot axis 260 is disposed above the lever pivot axis 210.
  • the lever pivot axis 210 in turn is laterally spaced from the outer surface of the receiving portion 11 of the adapter body 10.
  • the latch recess 215 is formed between the two plate-like parallel juxtaposed latch straps 216, in which the pawl 26 is arranged.
  • the pawl 26 has an adapter body-side blocking section 262 and an actuating section 261 arranged opposite the pawl pivot axis 260.
  • the actuating portion 261 forms a first arm and the blocking portion 262 forms a second arm of the pawl 26 designed as a two-armed lever.
  • the blocking portion 262 extends in locking position down to the outer surface of the adapter portion 11 down. Further, the blocking portion 262 has a stop surface directed against the bottom 263 to stop the pawl 26 on a stop surface 112 on the receiving portion 11 of the adapter body 10. Is the lever 21 in the clamping position and the pawl 26 (due to the action of the spring element 270) in the locked position, so blocked in the pawl pivot axis 260 securely mounted pawl 26 blocks the pivoting of the lever 21 in the release position. If the pawl 26 in locking position, the pin-shaped blocking portion 262 extends substantially perpendicular to the adapter body-side stop surface 112 and rests with the claw-side stop surface 263 on the adapter body-side stop surface 112.
  • the actuating portion 261 serves to pivot the blocking portion 262 in order to actuate the pawl 26.
  • the actuating portion 261 extends from the pawl pivot axis 260 upwards and with its free end to over the lever 21. Proximal from the free end of the blocking portion 262, the lever 21 is formed so excepted in that a recess 221 for a thumb of the gripping hand of the user is formed.
  • the free end portion of the operating portion 261 is such shaped and projects beyond the lever 21 so that the user with the resting in the recess 221 thumb of the gripping portion 211 comprehensive gripping hand can easily push the actuating portion 261 in the distal direction against the action of the spring member 270 in the pivot position.
  • the spring element 270 is designed as a compression spring, which is arranged in a front side on the lever 21 introduced blind hole 214. From the depth of this blind hole 214, the compression spring 270 engages in the distal direction with respect to the lever 21 on a proximal surface of the blocking portion 262. The blind hole 214 is thus mounted below the pawl pivot axis 216. Thus, the compression spring 270 presses the pawl 26 in the locked position.
  • the actuating portion 261 is shaped such that its proximal surface with respect to the lever 21 abuts on the lever 21 at the depth between the two pawl tabs 216 in the pawl recess 215 and is slightly biased under the spring member 270.
  • the front-side, lower abutment surface 263 of the blocking portion 262 is shaped so that it slightly extends in the blocking position in the distal direction upwards. This chamfer allows the pivoting of the pawl 26 from the locked position into the pivot position.
  • the lever 21 clamped in the lever lugs 110 via the lever pivot axis 210 is therefore in accordance with a clamping position Fig. 1 in a release position according to Fig. 6 pivotable.
  • a clamping position according to Fig. 1 engages the engaging portion 212 with the convex bulge 213 through the lateral passage or clamping opening 120 in the receiving portion 11 into the receptacle 12 a.
  • the convex bulge 213 further engages over the full area in the groove 44 in the clamping section 4 of the tool holder 3.
  • the bulge 213 and the groove 44 are accordingly designed to be complementary in such a way that the engagement portion 212 can be pivoted about the swivel joint of lever lugs 110 and lever pivot axis 210 by pivoting about the pivot axis 210 into and out of the groove 44.
  • FIG. 3 is the lever 21 in the clamping position, the pawl 26 in the locked position.
  • the engaging portion 212 engages with the convex bulge 213 through the lateral opening 120 in the adapter body 10 in the receptacle 12 and the groove 44 of Tool holder 3 and presses the longitudinal slot 42 a few tenths of a millimeter together.
  • the pawl 26 is biased with the proximal surface of the actuating portion 261 on the lever 21 by the compression spring 270.
  • an unillustrated user presses on the actuating portion 261 of the pawl 26 and pivots it from the said stop against the compression spring 270 in the distal direction.
  • the abutment surface 263 deviates with the blocking portion 262 to the left in FIG Fig. 4 from the stop surface 112 while the pawl 26 rotates about the pawl axis 260 until the blocking portion 262 finally abuts with a second side contact surface 265 and a lower end edge on the lever 21 and the abutment surface 263 completely from the outer surface 112 of the distal portion 111 of the receiving portion 11 is pivoted away.
  • the pawl 26 is then in the swivel position, shown in FIG FIG. 5 ,
  • lever 21 is then released and can, as in FIG. 6 shown to be pivoted from the clamping position to the release position.
  • a distal end surface of the pawl 26, the first side contact surface 264, in the upper region of the blocking portion 262 forms a stop surface, which prevents further pivoting of the lever 21 in the distal direction.
  • the latch straps 216 are in this case preferably shaped such that their distal end faces are aligned with the first side contact surface 264 of the pawl 26 in pivoting position such that the lever 21 and pawl 26 abut simultaneously on the stop surface 112 of the receiving portion 11. This is, for example, in Fig.
  • the pawl 26 is pivoted with the second side contact surface 265 against the depth of the pawl recess 215 and the first side contact surface 264 is aligned with the proximal tapered bottom face of the latch plates 216.
  • the pawl 26 and the latch tabs 216 thus define in interplay with the stop surface 112 of Recording section 11, the release position of the clamping lever 21.
  • the passage opening 120 defining surface of the receiving portion 11 is formed such that the engagement portion 212 of the clamping lever 21 is not blocked in the pivoting.
  • at least the corresponding proximal outer edge region is beveled (see bevel 113 in FIG Fig. 5 ).
  • the pawl 26 is in this case shaped and mounted on the lever axis 260 that the Pawl 26 in any position the clamping portion 4 is in the way.
  • the pawl 26 with the first side contact surface 264 abuts on surface 112 on the adapter body 10 in such a way that the pawl 26 is correspondingly pressed into the pawl recess 215 during pivoting of the clamping lever 21 and does not obstruct the clamping section 4.
  • the pawl 26 projecting into the passage opening 120 is prevented from touching the clamping section 4 in the region of the notch 44 and the flattening 123 during withdrawal.
  • the interplay between lever 21, pawl 26 and receiving body 10 can be configured such that the open lever 21 is in the release position and the pawl 26 is retracted into the pawl recess 215 in the pivoting position and abuts against the surface 112.
  • the spring means 270 then acts so strong on the pawl 26 that this is pressed freestanding clamping lever 21 slightly from the pawl recess 215 and thus on the surface 112 pending the clamping lever 21 from the release position slightly against the clamping position pivoted (a few degrees).
  • the blocking section 262 of the pawl 26 or the edge section 218 of the lever 21 still slightly protrudes into the groove 44 of the tool holder 3 used.
  • the tool holder 3 does not fall out of the receptacle 10 when the lever 21 is open; the lever 21 must be completely opened against the compression spring 270, whereby the blocking portion 262 of the pawl 26 or the edge portion 218 of the lever 21 completely lifts out of the notch 44 and releases the tool holder 3.
  • the tool holder 3 is automatically secured after insertion or when opening the lever 21 against the release position against accidental falling out. This contributes to the avoidance of accidents, since the tool holder 3 can only be removed from the adapter body 10 when the clamping lever 21 is deliberately pressed against the end stop. This is, as described above just achieved by the fact that the open lever 21 is in "neutral position" near the release position, that is not pressed with overcoming the spring pressure of the spring 270 to its ⁇ réellesendanschlag in the release position, which acts in the opening 220 of Adapter body 10 projecting lower edge of the blocking portion 262 of the pawl 26 or the edge portion 218 of the lever 21 as a barb. The tool holder 3 can thus be removed only from the receptacle 10 when the clamping lever 21 at its Opening end stop is pressed, since then the latch disappears from the receptacle 10.
  • a radial fine positioning for the relative rotational position of the clamping portion 4 in the receptacle 12 in the body 10 is provided.
  • radial fine positioning of the tool holder 3 in the receptacle 12 is located on the underside of the clamping portion 4 of the tool holder 3 about 5 millimeters from the clamping portion 4 abragender metal pin 6 with a diameter of about 3 to 4 millimeters.
  • the pin 6 is fixedly arranged in the clamping portion 4 and protrudes about 3 to 5 millimeters in the proximal direction from the projection 114 spaced perpendicular to the longitudinal axis of the clamping portion 4 of the latter.
  • the adapter device 1 has on an underside of the receiving portion 11 a slot 7 corresponding to this metal pin 6, which extends from the mouth opening of the receptacle 12 over 5 to 10 millimeters in the proximal direction.
  • the slot 7 is provided as a continuous slot from the inside to the outside of the receiving portion 11.
  • Slit 7 and pin 6 are complementarily shaped so that the pin 6 is fully guided in the slot 7 in the longitudinal direction, with pin 6 and slot 7 are mounted relative to each other on the adapter body 10 and the clamping portion 4, that they each functioning as a fine positioning lead the insertion movement of the clamping portion 4 in the receptacle 12 in the correct rotational position.
  • Slit 7 and pin 6 lead in particular the last millimeter of insertion movement of the clamping portion 4 in the receptacle 12. If the rotational position is incorrect on these last millimeters, the protruding metal pin 6 at the distal mouth surface of the receiving portion 11 and the tool holder 3 can not be used completely; on the other hand, if the rotational position is correct, the clamping section 4 can be pushed into the end position, the pin 6 retracting into the slot 7.
  • This fine positioning 6, 7 ensures that the clamping lever 21 is only actuated when the rotational position of the clamping portion 4 in the receptacle 12 and thus the groove 44 to the lever 21 is properly aligned. Thus, a tilted engagement of the lever 21 is avoided in the groove 44, which would unnecessarily wear the lever 21, since this would then press the clamping portion 4 in the correct rotational position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)

Claims (15)

  1. Dispositif adaptateur (1) pour un dispositif d'outil, en particulier pour un outil de jardinage, ayant un corps adaptateur (10), où le corps adaptateur (10) comprend un logement (12) pour un porte-outil (3), où un dispositif de serrage (2) ayant un levier de serrage (21) servant à serrer sans jeu le porte-outil (3) logé dans le logement (12) est disposé sur le corps d'adaptateur (10), où le levier de serrage (21) est pivotable sur le corps d'adaptateur (10) entre une position de libération et une position de verrouillage, et où d'avantage un moyen de verrouillage est prévu pour verrouiller le levier de serrage (21) dans la position de verrouillage, caractérisé en ce que le moyen de verrouillage (26) est disposé sur le levier de serrage (21).
  2. Dispositif adaptateur (1) selon la revendication 1, où le levier de serrage (21) est formé en levier de serrage (21) à deux bras ayant une partie de préhension (211) et une partie d'engagement (212).
  3. Dispositif adaptateur (1) selon la revendication 1 ou 2, où le moyen de verrouillage (26) comprend un cliquet de verrouillage (26) pivotable, lequel est monté de manière pivotable sur le levier de serrage (21) entre une position de verrouillage, dans laquelle un pivotement du levier de serrage (21) depuis sa position de verrouillage vers sa position de libération est bloquée, et une position de pivotement, dans laquelle un pivotement du levier de serrage (21) depuis sa position de verrouillage vers sa position de libération est possible.
  4. Dispositif adaptateur (1) selon la revendication 3, où le cliquet de verrouillage (26) est formé en levier à deux bras ayant une partie d'actionnement (261) et une partie de blocage (262).
  5. Dispositif adaptateur (1) selon la revendication 3 ou 4, où le cliquet de verrouillage (26) est connecté par un axe au levier (21), en particulier du coté frontal du levier de serrage (21).
  6. Dispositif adaptateur (1) selon la revendication 3 à 5, où le cliquet de verrouillage (26) est maintenu dans la position de verrouillage par un élément à ressort (270) disposé entre le levier de serrage (21) et le cliquet der verrouillage (26), et est pivotable à la main vers la position de pivotement contre la force d'élément à ressort du dit élément à ressort (270).
  7. Dispositif adaptateur (1) selon une des revendications 3 à 5, où la partie d'actionnement (261) du cliquet du verrouillage (26) dépasse le levier (21) vers le haut, et préférablement le levier (21) présente un évidemment (221) en direction proximale de la partie d'actionnement (261) en forme d'auge, de sorte que la partie d'actionnement (261) est actionnable à partir du dit évidemment (221).
  8. Dispositif adaptateur (1) selon la revendication 6 ou 7, où l'élément à ressort (270) est un ressort de compression.
  9. Dispositif d'outil (0) ayant un porte-outil (3) et un dispositif adaptateur (1) selon une des revendications précédentes, où le porte-outil (3) présente une partie de serrage (4), laquelle est insérable dans le logement (12).
  10. Dispositif d'outil (0) selon la revendication 9, où la partie de serrage (4) présente une gorge (44) servant à loger une partie de levier de serrage (213) du levier de serrage (21) s'insérant dans le logement (12), arrangée préférablement de manière centrique par rapport à une étendue longitudinale de la partie de serrage (4) et s'étendant perpendiculairement à cette étendue longitudinale.
  11. Dispositif d'outil (0) selon la revendication 10, où la gorge (44) et la partie de levier de serrage (213) s'étendant sont formées de manière complémentaire, où la partie de levier de serrage (213) s'étendant est formé en renflement en forme de cylindre circulaire partielle.
  12. Dispositif d'outil (0) selon une de revendications 9 à 11, où la partie de serrage (4) est aplatie unilatéralement dans le domaine proximal, est préférablement aplatie depuis la gorge (44) jusqu'à une extrémité proximale de la partie de serrage (4) et où le levier de serrage (21) s'engage, dans sa position de libération, dans le logement (12) de sorte que la partie de serrage (4) est uniquement insérable dans le logement (12) par un domaine (123) aplati en direction du levier de verrouillage (21).
  13. Dispositif d'outil (0) selon une des revendications 9 à 12, où la partie de serrage (4) présente une cavité, en particulier une fente longitudinale (42) de sorte que le levier de serrage (21) engageant s'appuie de manière élastique contre la partie de serrage (4).
  14. Dispositif d'outil (0) selon une des revendications 9 à 13, où la partie de serrage (4) présente une paroi d'appui (41) et une paroi de serrage (43) arrangées de manière espacé à travers la fente longitudinale (42) de la paroi d'appui (41), où la gorge (44) est prévue comme évidemment dans la paroi de serrage (43) et où la fente longitudinale (42) est placée depuis la paroi d'appui (41) vers la paroi de serrage (43) et introduite dans la partie de serrage (4).
  15. Dispositif d'outil (0) selon une des revendications 9 à 14, où la partie de logement (11) comprend au moins une fente (7) dans une surface de bouche distale, et la partie de serrage (4) présente au moins une tige saillante de manière latérale depuis la partie de serrage (4), laquelle est arrangée et formée sur la partie de serrage (4) de sorte que la tige (6) est insérable dans cette fente (7) lors de la position rotative correcte de la partie de serrage (4) dans le logement (12) et ainsi le mouvement d'engagement de la partie de serrage (4) dans le logement (12) est dirigeable.
EP14180224.9A 2013-08-13 2014-08-07 Système adaptateur pour un outil Active EP2845693B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01387/13A CH708431A2 (de) 2013-08-13 2013-08-13 Adapterverbindung für ein Werkzeug.

Publications (2)

Publication Number Publication Date
EP2845693A1 EP2845693A1 (fr) 2015-03-11
EP2845693B1 true EP2845693B1 (fr) 2016-06-15

Family

ID=51298591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14180224.9A Active EP2845693B1 (fr) 2013-08-13 2014-08-07 Système adaptateur pour un outil

Country Status (2)

Country Link
EP (1) EP2845693B1 (fr)
CH (1) CH708431A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI742258B (zh) * 2017-03-30 2021-10-11 瑞典商富世華股份有限公司 偏心機構

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3778059A1 (fr) * 2019-08-13 2021-02-17 Schleuniger AG Dispositif de réception d'outil, machine de travail pourvue de dispositif de réception d'outil ainsi que procédé de positionnement d'un outil sur un dispositif de réception d'outil

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596484A (en) * 1984-10-05 1986-06-24 Velbon International Corporation Lock for telescoping tubular support
DE3722219A1 (de) 1987-07-04 1989-01-12 Langenstein Feld Garten Arbeitsgeraet, wie gartengeraet, feldgeraet, putzgeraet oder dergl.
DE10044008A1 (de) * 2000-09-05 2002-03-14 Gardena Kress & Kastner Gmbh Arbeitsgerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI742258B (zh) * 2017-03-30 2021-10-11 瑞典商富世華股份有限公司 偏心機構

Also Published As

Publication number Publication date
EP2845693A1 (fr) 2015-03-11
CH708431A2 (de) 2015-02-13

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