EP3655196B1 - Quick-clamping device for a portable machine tool - Google Patents

Description

State of the art

A quick release device for a portable machine tool, in particular for an angle grinder, has already been proposed. Similar jigs can be the EP 1 180 416 A2 , the DE 11 2013 000831 T5 , the US 2010/197208 A1 , the US 2003/190877 A , the DE 20 2013 104204 U1 or the DE 10 2011 003100 A1 can be removed.

Disclosure of the invention

The invention proposes a quick release device according to claim 1 and a machine tool according to claim 9. “Provided” is to be understood in particular as specifically programmed, designed and / or equipped. The fact that an element and / or a unit is provided for a specific function should be understood in particular to mean that the element and / or the unit fulfill / fulfill this specific function in at least one application and / or operating state and / or execute / execute. "Movably mounted" is to be understood as meaning, in particular, a mounting of an element and / or a unit, the element and / or the unit having a possibility of movement, in particular decoupled from an elastic deformation of the element and / or the unit, along at least one axis of movement of more than 5 mm, preferably of more than 10 mm and particularly preferably of more than 50 mm and / or around at least one axis of movement in an angular range of more than 1 °, preferably of more than 5 ° and particularly preferably of more than 15 ° / having.

At least a large part of the quick release device is mounted in an inner area of a gear housing unit of the portable machine tool, with at least one structural unit and / or a structural element of the quick release device being arranged on an outer side of the gear housing unit of the portable machine tool, in particular completely on an outer side of the gear housing unit of the portable machine tool can be and / or can protrude at least partially from the transmission housing unit. In particular, the quick-release clamping device is provided to fix an insert tool unit on an output shaft, preferably designed as a hollow spindle, of the portable machine tool, and preferably to mount it in a rotatable manner. The quick-release clamping device is preferably provided for an advantageously tool-free fixation of the insert tool on the output shaft. The expression "at least a large part" is intended to mean in particular at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at least 95% of an outer shape, a surface of an outer shape, an outer contour, a mass and / or a volume of a structural unit and / or a component can be understood.

Preferably, at least a large part of the tensioning unit is arranged in an inner region of the transmission housing unit of the portable machine tool. In particular, the tensioning unit has at least one tensioning element which is at least partially arranged in the output shaft. The output shaft preferably surrounds the tensioning element, in particular at least partially, in particular completely, along a circumferential direction which runs around an axis of rotation of the output shaft. The clamping element is preferably rotationally fixed to the Output shaft connected. The tensioning element is preferably mounted so as to be pivotable about a pivot axis of the tensioning element, in particular relative to the output shaft. The pivot axis of the tensioning element preferably runs transversely, in particular at least substantially perpendicularly, to an axis of rotation of the output shaft. The pivot axis of the tensioning element is preferably aligned at least substantially perpendicular to a movement axis of the tensioning unit. A "movement axis of the clamping unit" is to be understood here in particular as an axis of the clamping unit along which an axial securing force of the clamping unit can be exerted on the insert tool unit to fix the insert tool unit on the output shaft and / or along which a transmission element of the clamping unit can be used to move the Clamping element is movably mounted. “At least substantially perpendicular” is to be understood as meaning, in particular, an alignment of a direction relative to a reference direction, the direction and the reference direction, in particular viewed in a plane extending parallel to the directions, enclosing an angle of at least approximately 90 ° and the angle has a maximum deviation of in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.

The clamping element is preferably designed as a clamping jaw. The at least one clamping element is provided, at least in one clamping position, to clamp and / or fix the replacement tool unit on the clamping unit and / or the output shaft in a non-positive and / or form-fitting manner. The clamping element is preferably provided at least to fix the tool insert unit axially on the output shaft. The clamping element preferably engages at least partially in the inserted tool unit, at least in the clamping position, in particular in a fixing recess of the inserted tool unit. In addition, the clamping element can be arranged in a release position designed differently from the clamping position, in which the replacement tool unit is free from the action of force by the clamping element and / or by the clamping unit.

The tensioning unit preferably comprises at least two movably, in particular pivotably, mounted tensioning elements. However, it is also conceivable that the tensioning unit comprises a number of tensioning elements other than two. The at least two tensioning elements preferably have an at least substantially one analog design. The at least two tensioning elements of the tensioning unit are preferably mounted so as to be movable relative to one another, in particular so as to be pivotable relative to one another, in particular about the pivot axis. In particular, the at least two clamping elements can be transferred into a clamping position of the clamping elements and / or into a release position of the clamping elements by means of the operating unit. Preferably, the at least two clamping elements can be transferred together by means of the operating unit, in particular can be transferred together, in particular moved, into the clamping position and / or into the release position. However, it is also conceivable that the at least two clamping elements can be transferred into the clamping position and / or into the release position independently of one another by means of the operating unit.

In particular, the tensioning unit is connected to the operating unit in a non-positive and / or form-fitting manner at least in one operating state, in particular to transfer the tensioning unit from the tensioning position to the release position. In particular, the clamping unit can contact the operating unit. The tensioning unit is preferably connected to the operating unit in a non-positive and / or form-fitting manner, at least in the release position, it being possible for the tensioning unit to be additionally connected to the operating unit in the tensioning position. The operating unit preferably has at least one actuation element, which can preferably be designed as a cylinder, as a bolt, as a cuboid, as a rod, as a ball and / or as an actuation element that appears sensible to a person skilled in the art. At least a large part of the actuating element is preferably arranged in an inner region of the transmission housing unit. Advantageously, the actuating element is at least partially, advantageously completely, encompassed by the output shaft along a circumferential direction which runs around an axis of rotation of the output shaft along a circumferential direction of the actuating element. Alternatively or additionally, the actuating element can be connected to corresponding groove projections of the output shaft by means of a guide recess and / or a groove. In addition, the operating unit can have at least one further actuating element, which can be at least partially structurally identical and / or different from the actuating element.

In particular, the actuating element has at least one main direction of extent which is oriented at least essentially parallel to the axis of rotation of the output shaft. In addition, the actuating element has at least one axis of movement which is arranged at least substantially and preferably completely parallel to the axis of rotation of the output shaft. In particular, the actuating element is provided by means of a translational movement parallel to the direction of movement to transmit an operator force exerted by an operator on the operating element of the operating unit to the clamping unit and to bring about at least one transfer of the clamping unit from the clamping position to the release position. "At least substantially parallel" is to be understood here in particular as an alignment of a direction relative to a reference direction, in particular in a plane, the direction having a deviation from the reference direction, in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.

In particular, in at least one operating state of the quick-release device, in particular for moving the clamping unit from the clamping position to the release position, the operating element is at least in contact with the operating element and advantageously connected in a non-positive and / or positive manner. In addition, the operating element is advantageously connected to the actuating element in a force-fitting and / or form-fitting manner, at least in the release position. The control element is intended to apply an operator force exerted by an operator on the control unit, in particular on the control element, and / or a torque exerted by an operator on the control unit, in particular on the control element, to the actuating element in order to transfer the clamping unit from the clamping position to be transferred to the release position. Preferably, at least a large part of the operating element is arranged on an outside of the transmission housing unit, a contact area between the operating element and the actuating element being at least partially arranged in an inner region of the transmission unit. Alternatively, it is also conceivable that the contact area between the operating element and the actuating element is mounted on an outside of the gear housing unit, the actuating element consequently being arranged at least partially in the outer area of the gear housing unit. The operating element is preferred as a force transmission component and / or designed as a torque transmission component and provided for actuation by means of an operator's hand, the operating element having at least one operating position and at least one further operating position which is at least partially different and / or separate from the operating position. In particular, at least the operating position of the operating element can be assigned to the tensioning position of the tensioning unit and the further operating position can be assigned to the release position of the tensioning unit. In particular, an operating position can be transferred at least substantially continuously and / or discretely from the release position into the clamping position and / or from the clamping position into the release position of the clamping unit by means of a movement of the operating element. In particular, an at least substantially continuous movement of the operating element provides a plurality of operating positions of the operating element, which are arranged between an operating position which can be assigned to the clamping position and a further operating position which can be assigned to the release position and which can at least partially form the release position and / or the clamping position of the clamping unit.

By means of the configuration, a tool-free assembly of an insert tool unit and consequently a high level of ease of assembly can advantageously be realized, wherein a loss of operator force exerted by the operator can advantageously be kept low in order to form the release position. In addition, a safe and particularly comfortable movement between the clamping position and the release position can be achieved, as a result of which a particularly safe fixation and / or release of the insert tool unit can also be achieved. According to the invention it is proposed that the control element is designed as a push button. In particular, the control element is provided to transmit a force exerted by an operator at least essentially vertically, in particular at least essentially parallel to the axis of movement of the clamping unit, on the control element, in particular a pressure force, to the actuating element and / or the clamping unit. The operating element advantageously has at least one contact pin, which at least for the most part is in an inner area of the transmission housing unit and is at least non-positively and / or positively and preferably partially integrally connected to the push button. The contact bolt is advantageously provided to be contacted at least in one operating state for a movement of the tensioning unit from the tensioning position to the release position and to transmit the operator force to the actuating element and / or the tensioning unit. At least the push button is advantageously mounted to provide a restoring force by means of a preferably resilient restoring element. The push button is preferably formed from a plastic, it also being conceivable to form the push button at least partially from a metal. With the design according to the invention, a direct transmission of force from the operator to the clamping unit can advantageously be achieved, as a result of which the expenditure of force for forming the release position can be kept low. In addition, an operating element that saves space and / or material can be achieved.

It is further proposed that the operating element has an axis of movement which runs at least substantially parallel to the axis of movement of the clamping unit. The axis of movement advantageously runs completely parallel to the axis of movement of the clamping unit. In particular, the operating element and the actuating element form a contact area via which the pressure force of the operator can be transmitted to the actuating element.

In addition, a portable machine tool, in particular an angle grinder, with at least one quick-release clamping device according to one of the preceding claims is proposed. A “portable machine tool” is to be understood here in particular as a machine tool for machining workpieces that can be transported by an operator without a transport machine. The portable machine tool has, in particular, a mass that is less than 40 kg, preferably less than 10 kg and particularly preferably less than 5 kg. The portable machine tool is particularly preferably designed as an angle grinder. However, it is also conceivable that the portable machine tool has another configuration that appears sensible to a person skilled in the art, such as, for example, a configuration as a circular saw machine, a grinding machine or the like. The portable machine tool preferably comprises a rotationally drivable output shaft. The quick release device is preferably arranged on the output shaft. The quick release device is preferably arranged at least partially in the output shaft. The output shaft is preferably designed as a hollow shaft. In particular, the portable machine tool, together with an insert tool unit, which can be fixed to the output shaft by means of the quick-release clamping device, forms a machine tool system. By means of the configuration, a tool-free assembly of an insert tool unit and consequently a high level of ease of assembly can advantageously be realized, wherein a loss of operator force exerted by the operator can advantageously be kept low in order to form the release position. In addition, a safe and particularly comfortable movement between the clamping position and the release position can be achieved, as a result of which a particularly safe fixation and / or release of the insert tool unit can also be achieved.

drawing

Further advantages emerge from the following description of the drawings. In the drawings, 18 exemplary embodiments are shown, only the exemplary embodiment of FIG Figure 11 represents an embodiment according to the invention. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Fig. 1a

eine tragbare Werkzeugmaschine mit einer Schnellspannvorrichtung in einer schematischen Darstellung,

Fig. 1b

eine Schnittansicht der tragbaren Werkzeugmaschine aus Figur 1a mit der Schnellspannvorrichtung in einer schematischen Darstellung,

Fig. 2

eine Bedieneinheit einer Schnellspannvorrichtung in einer perspektivischen Teilansicht,

Fig. 3

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Drehhebel ausgebildeten Bedienelement in einer perspektivischen Teilansicht,

Fig. 4

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Drehknebel ausgebildeten Bedienelement in einer perspektivischen Teildarstellung,

Fig. 5

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Schwenkhebel ausgebildeten Bedienelement mit einer Kniehebelgetriebeeinheit in einer stark vereinfachten, seitlichen Teildarstellung,

Fig. 6

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Schwenkhebel ausgebildeten Bedienelement mit einem weiteren Ausführungsbeispiel einer Kniehebelgetriebeeinheit in einer stark vereinfachten, seitlichen Teildarstellung,

Fig. 7

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Schwenkhebel ausgebildeten Bedienelement mit einer Zahnstangengetriebeeinheit in einer stark vereinfachten, seitlichen Teildarstellung,

Fig. 8

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Schwenkhebel ausgebildeten Bedienelement mit einer Kurvengetriebeeinheit in einer stark vereinfachten, seitlichen Teildarstellung,

Fig. 9

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Schiebschaltelement ausgebildeten Bedienelement in einer perspektivischen Teildarstellung,

Fig.10

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem Bedienelement, welches eine schiefe Ebene aufweist, in einer schematischen Teildarstellung,

Fig. 11

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Bedieneinheit mit einem als Druckknopf ausgebildeten Bedienelement in einer seitlichen Teildarstellung,

Fig. 12

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Druckhebel ausgebildeten Bedienelement in einer seitlichen Teildarstellung,

Fig. 13

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Schwenkhebel ausgebildeten Bedienelement in einer seitlichen Darstellung,

Fig. 14

ein weiteres Ausführungsbeispiel einer Bedieneinheit mit einem als Ziehbügel ausgebildeten Bedienelement in einer seitlichen Teildarstellung,

Fig. 15

eine Halteinheit einer Schnellspannvorrichtung in einer seitlichen Teildarstellung,

Fig. 16

ein weiteres Ausführungsbeispiel einer Halteeinheit mit einem Magnetelement in einer perspektivischen Darstellung,

Fig. 17

ein weiteres Ausführungsbeispiel einer Halteeinheit mit einem Verkantungshebel in einer perspektivischen Darstellung und

Fig. 18

eine als Schlingfedereinheit ausgebildete Dämpfungseinheit in einer perspektivischen Teilansicht.

Show it:

Fig. 1a

a portable machine tool with a quick release device in a schematic representation,

Figure 1b

Fig. 3 is a sectional view of the portable machine tool Figure 1a with the quick release device in a schematic representation,

Fig. 2

an operating unit of a quick release device in a perspective partial view,

Fig. 3

a further embodiment of an operating unit with an operating element designed as a rotary lever in a perspective partial view,

Fig. 4

a further embodiment of an operating unit with an operating element designed as a rotary knob in a perspective partial illustration,

Fig. 5

a further exemplary embodiment of an operating unit with an operating element designed as a pivot lever with a toggle lever gear unit in a greatly simplified, partial illustration on the side,

Fig. 6

a further exemplary embodiment of an operating unit with an operating element designed as a pivot lever with a further exemplary embodiment of a toggle lever gear unit in a greatly simplified, partial illustration on the side,

Fig. 7

a further embodiment of an operating unit with an operating element designed as a pivot lever with a rack and pinion gear unit in a greatly simplified, partial illustration on the side,

Fig. 8

a further embodiment of an operating unit with an operating element designed as a pivot lever with a cam gear unit in a greatly simplified, partial side view,

Fig. 9

a further embodiment of an operating unit with an operating element designed as a sliding switch element in a perspective partial illustration,

Fig. 10

a further embodiment of an operating unit with an operating element, which has an inclined plane, in a schematic partial illustration,

Fig. 11

a further embodiment of an operating unit according to the invention with an operating element designed as a push button in a partial side view,

Fig. 12

Another embodiment of an operating unit with an operating element designed as a pressure lever in a partial side view,

Fig. 13

Another embodiment of an operating unit with an operating element designed as a pivot lever in a side view,

Fig. 14

Another embodiment of an operating unit with an operating element designed as a pull handle in a partial side view,

Fig. 15

a holding unit of a quick release device in a partial side view,

Fig. 16

a further embodiment of a holding unit with a magnetic element in a perspective view,

Fig. 17

a further embodiment of a holding unit with a tilting lever in a perspective view and

Fig. 18

a damping unit designed as a wrap spring unit in a perspective partial view.

Description of the exemplary embodiments

Figure 1a shows a portable machine tool 60a designed as an angle grinder with a quick-release clamping device 10a. However, it is also conceivable that the portable machine tool 60a has a different configuration that appears sensible to a person skilled in the art, such as a configuration as a circular saw machine, as a grinding machine or the like. The portable machine tool 60a comprises a gear housing unit 58a for receiving and / or mounting a machine tool gear unit 40a of the portable machine tool 60a. The gear housing unit 58a is preferably formed from a metallic material. However, it is also conceivable that the gear housing unit 58a is formed completely, to a large extent or at least partially from plastic and / or from another material that appears sensible to a person skilled in the art. The machine tool gear unit 40a is preferably designed as an angular gear. The machine tool gear unit 40a comprises, in particular, an output shaft 16a that can be driven in rotation and on which an insert tool unit 14a can be fixed, in particular by means of the quick-release clamping device 10a. The output shaft 16a is preferably designed as a hollow spindle in which the quick release device 10a is at least partially arranged (cf. Figure 1b ). An additional handle, not shown here, can be arranged on the gear housing unit 58a in a manner already known to a person skilled in the art. The portable machine tool 60a comprises a drive housing unit 64a for receiving and / or mounting a drive unit 66a of the portable machine tool 60a. The drive unit 66a is preferably provided in a manner already known to a person skilled in the art, by means of an interaction with the machine tool gear unit 40a to drive the output shaft 16a in a rotating manner about an axis of rotation 62a of the output shaft 16a. The axis of rotation 62a of the output shaft 16a runs at least substantially perpendicular to a drive axis 68a of the drive unit 66a. The drive unit 66a is preferably designed as an electric motor unit. However, it is also conceivable that the drive unit 66a has a different configuration that appears sensible to a person skilled in the art, such as, for example, a configuration as a combustion drive unit, as a hybrid drive unit, as a pneumatic drive unit or the like.

Figure 1b shows a sectional view of the portable machine tool 60a, in particular in the area of the machine tool gear unit 40a, and the quick-release clamping device 10a. The machine tool gear unit 40a and the quick-release clamping device 10a are for the most part arranged in an inner region of the gear housing unit 58a. The quick-release clamping device 10a for the portable machine tool 60a, which has at least the rotationally drivable output shaft 16a, comprises at least one clamping unit 12a, which for a tool-free fixation of the insert tool unit 14a on the output shaft 16a has at least one movably mounted clamping element 20a, 22a for a clamping force acting on the insert tool unit 14a in a Has clamping position of the clamping element 20a, 22a. The quick-release clamping device 10a further comprises at least one operating unit 24a for moving the clamping element 20a, 22a into the clamping position and / or into a release position of the clamping element 20a, 22a, in which the insert tool unit 14a can be removed from the clamping unit 12a and / or the output shaft 16a. The clamping unit 12a is mounted in a translatory manner along a movement axis 18a of the clamping unit 12a. The clamping unit 12a comprises at least two movably mounted clamping elements 20a, 22a. However, it is also conceivable that the clamping unit 12a comprises a number of clamping elements 20a, 22a other than two. The at least two tensioning elements 20a, 22a have an at least substantially analogous design, so that features that are disclosed for one of the tensioning elements 20a, 22a are also to be regarded as disclosed for the further tensioning element 20a, 22a. The at least two clamping elements 20a, 22a are mounted pivotably about a pivot axis 70a. The pivot axis 70a of the at least two clamping elements 20a, 22a runs at least substantially perpendicular to the movement axis 18a of the clamping unit 12a. At least two Clamping elements 20a, 22a are provided to axially fix the tool insert unit 14a on the output shaft 16a in a state arranged on the clamping unit 12a and / or the output shaft 16a, in particular in the clamping position of the at least two clamping elements 20a, 22a. The at least two clamping elements 20a, 22a are non-rotatably connected to the output shaft 16a. The at least two clamping elements 20a, 22a can be driven together with the output shaft 16a to rotate about the axis of rotation 62a.

The clamping unit 12a comprises at least one rotary driving element 72a for torque transmission to the tool insert unit 14a. In a state of the insert tool unit 14a arranged on the clamping unit 12a and / or the output shaft 16a, the rotary drive element 72a engages in a receiving recess (not shown here) of the insert tool unit 14a and rests against at least one edge of the insert tool unit 14a that delimits the receiving recess for torque transmission . A torque transmission between the output shaft 16a and the insert tool unit 14a arranged on the clamping unit 12a and / or the output shaft 16a is preferably carried out in a manner already known to a person skilled in the art by means of a positive connection between the rotary drive element 72a and the insert tool unit 14a. The rotary driving element 72a is arranged non-rotatably on the output shaft 16a. The rotary driving element 72a can be driven together with the output shaft 16a to rotate about the axis of rotation 62a.

The operating unit 24a is preferably provided to move the clamping element 20a, 22a, in particular the at least two clamping elements 20a, 22a, at least into the release position in which the tool insert unit 14a can be removed from the clamping unit 12a and / or the output shaft 16a. Alternatively or additionally, it is conceivable that the operating unit 24a is provided to move the clamping element 20a, 22a, in particular the at least two clamping elements 20a, 22a, at least into the clamping position in which the tool insert unit 14a is connected to the output shaft 16a by means of the clamping unit 12a is fixable. The operating unit 24a preferably comprises at least one operating element 26a which can be actuated by an operator. In the exemplary embodiment of the prior art shown, the operating element 26a is designed as an operating lever. The control element 26a comprises a movement axis 28a, which in the exemplary embodiment shown is designed as a further pivot axis and / or axis of rotation of the operating element 26a and is oriented transversely, in particular at least substantially perpendicularly, to the axis of rotation 62a of the output shaft 16a. The operating element 26a is preferably mounted rotatably about the movement axis 28a. The operating element 26a is decoupled from a rotary movement of the output shaft 16a. The operating element 26a is provided for actuating an actuating element 74a.

The operating unit 24a comprises the actuating element 74a. The actuating element 74a is mounted in a translatory manner along the movement axis 18a of the clamping unit 12a. The actuating element 74a is at least partially designed as a cylinder body with an at least substantially round cross-section, wherein the actuating element 74a can alternatively or additionally at least partially have a cross-section that is different from a round cross-section, for example a square, rectangular and / or polygonal cross-section. The actuating element 74a is advantageously manufactured at least partially from metal, wherein the actuating element 74a can at least partially also be manufactured from a plastic and / or a material that appears sensible to a person skilled in the art. The actuating element 74a is fixed against rotation relative to the gear housing unit 58a in the gear housing unit 58a, in particular as a result of at least one lateral flattening of the actuating element 74a, which enables axial movement and prevents rotational movement. In the area of the actuating element 74a, a sealing element 84a, such as a rubber seal or the like, is preferably arranged on the transmission housing unit 58a, in order to at least largely prevent dirt from penetrating into the transmission housing unit 58a and / or into the tensioning unit 12a. The operating element 26a is provided to move the clamping unit 12a along the axis of movement 18a of the clamping unit 12a by means of the operator force and to form a release position of the clamping unit 12a.

The operating unit 24a comprises an operating gear unit 30a. The operating gear unit 30a is at least partially arranged in an inner region of the gear housing unit 58a of the portable machine tool 60a. The operating gear unit 30a is provided to bring about contact between the operating element 26a and the actuating element 74a by means of at least one operating gear element. The operating gear unit 30a is provided to redirect a transmission of an operator force by means of an operating gear joint. For this purpose, the operating gear unit 30a can have at least one toggle lever gear unit, a rack and pinion gear unit, a cam gear unit and / or another gear unit that appears useful to a person skilled in the art.

The operating unit 24a comprises at least one decoupling element 76a, which can be brought into contact with the actuating element 74a by means of a non-positive connection or is in contact with the actuating element 74a. The decoupling element 76a is preferably mounted such that it can move translationally along the axis of rotation 62a. The decoupling element 76a comprises in particular a conical connection area which at least partially engages in a recess of the actuating element 74a. A frictional effect between the actuating element 74a and the decoupling element 76a is in particular dependent on a configuration of the conical connecting region and a spring force of a decoupling spring element 80a of the operating unit 24a. The decoupling spring element 80a is provided to act on the decoupling element 76a with a spring force in the direction of the actuating element 74a. The decoupling spring element 80a is arranged in a transmission element 78a of the tensioning unit 12a, designed as a tensioning fork. The transmission element 78a is non-rotatably connected to the output shaft 16a. The transmission element 78a can be moved translationally along a movement axis 18a of the clamping unit 12a and is movably supported in the output shaft 16a. The transmission element 78a can be acted upon by a spring force at least by means of a tension spring element 86a of the tensioning unit 12a along the movement axis 18a, in particular in the direction of the operating unit 24a.

The operating unit 24a has at least one connecting element 88a, which is provided to connect the decoupling element 76a and the transmission element 78a with one another in terms of movement, in particular at least when the output shaft 16a is at a low speed or when the output shaft 16a is at a standstill. The connecting element 88a is a bolt educated. The connecting element 88a is fixed on the decoupling element 76a. The connecting element 88a can be moved together with the decoupling element 76a. In the event of a rotational movement of the output shaft 16a, the decoupling element 76a and the connecting element 88a can be rotated relative to the transmission element 78a as a result of braking by actuation of the actuating element 74a, the connecting element 88a being movable in a guide slot of the transmission element 78a, not shown here, that the decoupling element 76a can be moved against a spring force of the decoupling spring element 80a into a guide recess (not shown here) of the transmission element 78a. An actuation of the operating element 26a during a rotational movement of the output shaft 16a can be converted into a movement of the actuating element 74a and the decoupling element 76a relative to the transmission element 78a. Movement of the transmission element 78a as a result of the action of an operator force by means of the operating unit 24a to move the clamping element 20a, 22a, in particular the clamping elements 20a, 22a, starting from the clamping position into the release position during a rotary movement of the output shaft 16a can largely be prevented. The transmission element 78a is provided to transfer the clamping element 20a, 22a, in particular the clamping elements 20a, 22a, starting from the clamping position into the release position, in particular to move it.

The clamping element 20a, 22a, in particular the clamping elements 20a, 22a, is / are movably, in particular pivotably, mounted on the output shaft 16a, in particular in the output shaft 16a. The tensioning element 20a, 22a, in particular the tensioning elements 20a, 22a, has / have at least one link element 90a which is provided to interact with a link engagement element. The link engagement element is fixed on the transmission element 78a. As a result of the interaction of the link engagement element and the link element 90a, the clamping element 20a, 22a, in particular the clamping elements 20a, 22a, can be moved from the clamping position into the release position or from the release position into the clamping position. The tensioning element 20a, 22a, in particular the tensioning elements 20a, 22a, is / are in particular transferable from the release position to the tensioning position by means of the action of a spring force of the tensioning spring element 86a on the transmission element 78a. The clamping element 20a, 22a, in particular the clamping elements 20a, 22a, is / are automatically movable into the clamping position as a result of the action of a spring force of the tensioning spring element 86a, in particular after removal of the action of an operator force via the operating unit 24a.

The quick release device 10a comprises at least one securing unit 92a, in particular a self-locking unit and / or a latching unit, which is provided at least in the event of an action of the tensioning element 20a, 22a, in particular the tensioning elements 20a, 22a, which is decoupled from the operating unit 24a and in the direction of the release position , force acting on the tensioning element 20a, 22a, in particular on the tensioning elements 20a, 22a, a movement of the tensioning element 20a, 22a, in particular the tensioning elements 20a, 22a, starting from the tensioning position into the release position of the tensioning element 20a, 22a, in particular the tensioning elements 20a , 22a, to prevent.

In the Figures 2 to 18 Embodiments of an operating unit of a quick release device are shown. The following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, with regard to components with the same designation, in particular with regard to components with the same reference numerals, in principle also to the drawings and / or the description of the exemplary embodiment in FIG Figures 1a and 1b can be referenced. The embodiments of Figures 2 to 18 differ from the embodiment of Figures 1a and 1b only through the design of the operating unit and through a design of a holding unit and a damping unit. To distinguish the exemplary embodiments, the letter a is the reference number of the exemplary embodiment in FIG Figures 1a and 1b re-enacted. In the embodiments of Figures 2 to 18 the letters b to r are placed after the reference numerals.

Figure 2 shows part of an operating unit 24b of a quick release device 10b in a perspective illustration. At least a large part of the quick-release clamping device 10b is arranged in an inner region of a gear housing unit 58b, which is only partially shown here. The operating unit 24b has at least one operating element 26b. The operating element 26b is arranged on an outside of the transmission housing unit 58b. The operating element 26b is designed as a toggle switch. The operating element 26b is at least in Essentially made of plastic. Alternatively, the operating element 26b can be made at least partially from metal or from a material different therefrom that appears sensible to the person skilled in the art. In addition, the operating unit 24b can have a protective element to protect the operating element 26b and / or the tensioning unit from contamination and / or involuntary operation by an operator, which is designed as a preferably flexible protective cover and at least partially encloses the operating element 26b.

The operating element 26b has a movement axis 28b, which is designed as an axis of rotation and / or a tilt axis. The movement axis 28b of the operating element 26b is at least substantially perpendicular to a movement axis 18b of a clamping unit, not shown here (cf. Figure 1b ) the quick release device 10b arranged. The operating element 26b has a first end region 102b and a second end region 104b opposite the first end region 102b along the operating element 26b. The end regions 102b, 104b are arranged such that they can be tilted about the movement axis 28b. The end regions 102b, 104b are provided by means of tilting by the action of an operator force on one of the end regions 102b, 104b to form two switch positions 106b, 108b, in particular a first switch position 106b and at least one second switch position 108b. In the first switch position 106b, the operating element 26b is provided for transmitting an operator force to an operating element (not shown here). In the first switch position 106b, the operating element 26b is provided by means of the operator's force to form the release position of the clamping unit. For this purpose, the operating element 26b embodied as a toggle switch has at least one contact element (not shown here). At least a large part of the contact element is made of plastic. Alternatively, the contact element can be made at least partially or completely from rubber. The contact element is intended to exert an operator force on an actuating element (not shown here) to form at least the release position of the clamping unit (cf. Figure 1b ) transferred to.

In the second switch position 108b, the operating element 26b is provided to form a clamping position of the clamping unit. In the second switch position 108b, the contact element is advantageously not in contact with the actuating element 74b. Alternatively, the contact element can be in contact with the actuating element 74b. Alternatively, the first switch position 106b can be provided for forming the tensioning position of the tensioning unit and the second switch position 108b for forming the release position. In addition, the operating element 26b can have further switch positions 106b, 108b.

Figure 3 shows part of an operating unit 24c of a quick release device 10c in a perspective partial illustration. The operating unit 24c has at least one operating element 26c. The operating element 26c is designed as a rotary lever. The operating element 26c is preferably made at least to a large extent from metal, for example from aluminum. As an alternative or in addition, the operating element 26c can be formed from a plastic and / or from a material that appears sensible to a person skilled in the art.

The operating element 26c has at least one movement axis 28c. The operating element 26c is mounted rotatably about the movement axis 28c of the operating element 26c. The movement axis 28c of the operating element 26c is at least essentially parallel to a movement axis 18c of a clamping unit (not shown here) (cf. Figure 1b ) aligned. The operating element 26c is preferably mounted such that it can rotate at least 90 °. Alternatively, it is conceivable that the operating element 26c is mounted such that it can rotate through at least 180 ° or at least 360 °.

The operating unit 24c also has an operating housing element 110c. The operating housing element 110c has an at least essentially cylindrical outer contour. The operating housing element 110c is provided to at least partially enclose and / or guide the operating element 26c during operation by an operator. The operating housing element 110c is advantageously manufactured at least essentially from metal. As an alternative or in addition, the operating housing element 110c can also be formed from plastic and / or from a material that appears sensible to a person skilled in the art. In addition, the operating housing element 110c has at least one recess 112c. The recess 112c is at least to guide the Operating element 26c is provided. The recess 112c in particular forms a backdrop for guiding the operating element 26c.

The operating unit 24c comprises an operating gear unit 30c. The operating gear unit 30c is arranged within the operating housing element 110c. The operating gear unit 30c is at least partially non-positively and / or positively connected to the operating element 26c. The operating gear unit 30c is advantageously designed at least partially as a cam gear unit. The operating gear unit 30c has a first cam gear element 136c. The first cam gear element 136c is preferably designed as a solid cylinder. An outer contour of the first cam gear element 136c preferably corresponds to an inner contour of the operating housing element 110c. The first cam gear element 136c has a thread-shaped groove recess (not shown here) along the cylinder jacket-shaped outer contour. The thread-like groove recess is advantageously formed in a circumferential region of the operating gear unit 30c, which corresponds to a maximum rotational movement of the operating element 26c. The groove recess is advantageously arranged in a circumferential area of the first cam gear element 136c, which corresponds to a circumferential angle of at least 90 °. In addition, the operating gear unit 30c has a second cam gear element (not shown here). The second cam gear element is provided to be guided in a form-fitting manner in the groove recess. The second cam gear element can be designed as a guide pin, as a guide bolt, as a guide tooth, as a guide projection and / or as a second cam gear element that appears sensible to a person skilled in the art. The operating gear unit 30c is mounted rotatably about the movement axis 28c of the operating element 26c. The operating gear unit 30c is at least non-positively and / or positively connected to the operating element 26c. A rotary movement of the operating element 26c about the movement axis 28c causes a pivoting movement of the operating gear unit 30c about the movement axis 28c of the operating element 26c. A rotary movement of the operating element 26c about the movement axis 28c also causes a translational movement of the operating gear unit 30c parallel to the movement axis 18c of the clamping unit (cf. Figure 1b ).

In addition, the operating unit 24c has at least one transfer element 32c. The transfer element 32c is arranged within the operating housing element 110c. The transfer element 32c is arranged pivotably about the movement axis 28c. The transfer element 32c is advantageously mounted so that it can pivot at least 90 ° about the movement axis 28c. An outer contour of the transfer element 32c preferably corresponds to an inner contour of the operating housing element 110c. The transfer element 32c is advantageously designed in a non-positive and / or form-fitting manner with the operating element 26c. The transfer element 32c is preferably formed at least partially in one piece with the operating element 26c. The transfer element 32c is preferably designed in a non-positive and / or form-fitting manner with the first cam gear element 136c. The transfer element 32c is advantageously formed at least partially in one piece with the first cam gear element 136c. The transfer element 32c is particularly advantageously designed from the first cam gear element 136c. The transfer element 32c is provided to convert a pivoting movement of the operating element 26c about the movement axis 28c of the operating element 26c into a translational movement of the operating element 26c along the movement axis 28c of the operating element 26c.

In addition, the quick release device 10c comprises a holding unit 46c. The holding unit 46c is arranged within the operating housing element 110c. The holding unit 46c is provided to fix a position, in particular an operating position of the operating element 26c. In particular, the holding unit 46c is provided to fix a release position and / or a clamping position of the clamping unit. The holding unit 46c comprises at least one holding element (not shown here). The holding element is designed as a latching element. The retaining element can be designed, for example, as a latching lug and / or a pin, which is formed as a latching connection with a corresponding latching recess and / or latching recess, for example at one end of the thread-shaped groove recess of the operating gear unit 30c. The holding unit 46c also includes at least one holding spring element 54c. The retaining spring element 54c is advantageously designed as a resilient element. The retaining spring element 54c is preferably designed as a helical return spring. The retaining spring element 54c has two ends, which at least are non-positively and / or positively connected to the operating unit 24c. The retaining spring element 54c is preferably arranged between the operating element 26c and at least one surface of the transmission housing unit 58c. The retaining spring element 54c advantageously encompasses at least a large part of the operating gear unit 30c. The retaining spring element 54c is provided to apply a spring force to the operating element in at least one operating state, in particular in a release position of the tensioning unit. The retaining spring element 54c is provided to apply a spring force to the retaining element. The retaining spring element 54c is also provided to apply a spring force to the operating element 26c in at least one operating state, in particular in a release position of the tensioning unit, in particular which presses the operating element 26c in the direction of a tensioning position.

Figure 4 shows an operating unit 24d with the operating element 26d in a perspective partial illustration. The operating element 26d is designed as a rotary knob. Alternatively, the operating element 26d can be designed as a rotary knob and / or rotary knob. The operating element 26d is arranged on an outside of a transmission housing unit 58d. The operating element 26d has a movement axis 28d. The movement axis 28d of the operating element 26d is at least substantially parallel to a movement axis 18d of a clamping unit, not shown here (cf. Figure 1b ). The movement axis 28d is designed as an axis of rotation. The operating element 26d is mounted rotatably about the movement axis 28d. The operating element 26d advantageously has at least one contact element (not shown here). The contact element is provided to contact an actuating element, not shown here, of the operating unit 24d in a rotational movement of the operating element 26d about the axis of movement 28d of the operating element 26d, in order to transmit an operator force to the actuating element in a contact area not shown here. The contact element is provided to bring about a translational movement of the actuating element along the movement axis 28d of the operating element 26d and in particular along the movement axis 18d of the clamping unit by means of a transmission of the operator force. For example, the contact element can have a wedge-shaped and / or at least partially rounded contour and / or have a contour that appears sensible to the person skilled in the art for forming the contact area.

Figure 5 shows an operating element 26e of an operating unit 24e in a greatly simplified, lateral partial illustration. The operating element 26e is designed essentially as a pivot lever. The operating element 26e is mounted rotatably about a movement axis 28e. The operating unit 24e has a swivel joint 116e of the operating element 26e. The operating element 26e is mounted so as to be rotatable about a movement axis 28e by means of the swivel joint 116e. The movement axis 28e is essentially perpendicular to the movement axis 18e of a clamping unit, not shown here (cf. Figure 1b ) aligned. The operating element 26e is mounted rotatably relative to a gear housing unit (not shown here). The movement axis 28e is fixed in position relative to a gear housing unit. In addition, the operating unit 24e has at least one actuating element 74e. The operating element 26e is mounted so as to be rotatable relative to the actuating element 74e about the movement axis 28e. The actuating element 74e is for a translational movement along the movement axis 18e of the clamping unit (cf. Figure 1b ) intended. The actuating element 74e is mounted such that it can move in translation relative to the movement axis 28e.

In addition, the operating unit 24e has an operating gear unit 30e. The operating gear unit 30e is designed as a toggle lever gear unit. The operating gear unit 30e has at least one first toggle lever gear element 118e. The first toggle mechanism element 118e is designed as a link guide. The first toggle lever gear element 118e is formed in a contact area 38e of the operating element 26e. The first toggle mechanism element 118e has an at least substantially linear shape. The first toggle lever mechanism element 118e has a direction of longitudinal extent 114e. Alternatively, the first toggle lever gear element 118e can be curved and / or have a circular path, wherein an end region of the first toggle lever gear element 118e can also be inclined to the first toggle lever gear element 118e, for example to fix the toggle lever gear unit. The first toggle lever gear element 118e is formed in the operating element 26e in such a way that a first The distance 94e of a first end of the first toggle lever gear element 118e to the movement axis 28e is different from a second distance 96e of a second end of the first toggle lever gear element 118e facing away from the first end to the movement axis 28e.

The operating gear unit 30e has a second toggle lever gear element 120e. The second toggle mechanism element 120e is designed as a guide pin. The second toggle lever gear element 120e is designed to correspond to the first toggle lever gear element 118e. The second toggle lever mechanism element 120e is formed at least substantially parallel to the movement axis 28e of the operating element 26e. The second toggle lever gear element 120e is aligned at least substantially perpendicular to the axis of movement 18e of the tensioning unit. The second toggle lever gear element 120e is at least partially inserted into the first toggle lever gear element 118e. The second toggle lever gear element 120e is provided for a positive connection with the first toggle lever gear element 118e. The second toggle lever gear element 120e is provided to be guided within the first toggle lever gear element 118e during a movement by means of an operator force. In addition, the operating gear unit 30e can have at least one further toggle lever gear element.

When an operator force acts to execute a rotary movement of the operating unit 24e about the movement axis 28e, the second toggle lever gear element 120e is guided in the first toggle lever gear element 118e. A rotary movement of the operating element 26e causes a movement of the first toggle lever gear element 118e relative to the second toggle lever gear element 120e. Consequently, a rotary movement of the operating element 26e causes a translational movement of the actuating element 74e parallel to the axis of movement 18e of the clamping unit (cf. Figure 1b ).

Figure 6 shows an operating element 26f of an operating unit 24f in a greatly simplified lateral partial illustration. The operating element 26f is rotatably mounted about a swivel joint 116f. The operating element 26f is mounted rotatably about a movement axis 28f. The axis of movement 28f is at least substantially perpendicular to a movement axis 18f of a clamping unit, not shown here (cf. Figure 1b ) arranged. In addition, the operating unit 24f comprises at least one operating gear unit 30f. The operating gear unit 30f is designed as a toggle lever gear unit. The operating gear unit 30f has a first toggle lever gear element 118f. The first toggle lever gear element 118f is formed in one piece with the operating element 26f. The first toggle lever gear element 118f is arranged on a side of the rotary joint 116f facing away from an operating area 146f of the operating element 26f. In addition, the operating gear unit 30f has at least one second toggle lever gear element 120f. The second toggle lever gear element 120f is rotatably mounted about a further swivel joint 124f of the operating gear unit 30f. The second toggle lever gear element 120f is mounted rotatably about the further swivel joint 124f relative to the first toggle lever gear element 118f. The further swivel joint 124f defines a movement axis 126f of the second toggle lever gear element 120f. The movement axis 126f of the second toggle lever mechanism element 120f is aligned at least substantially parallel to the movement axis 28f of the operating element 26f. The operating unit 24f has an actuating element 74f. The operating unit 24f has a connecting element 121f which is connected to the actuating element 74f at least in a non-positive and / or positive manner. The connecting element 121f is aligned along the axis of movement 18f of the tensioning unit. The connecting element 121f is designed as a connecting bolt and / or as a connecting element 121f that appears useful to a person skilled in the art. The second toggle lever gear element 120f is rotatably connected to the connecting element 121f about an additional swivel joint 117f of the operating gear unit 30f. The operating gear unit 30f is provided to transmit an operator force exerted on the operating element 26f, in particular a torque, to the operating element 74f of the operating unit 24f and to cause the operating element 74f to move along the axis of movement 18f of the tensioning unit.
Figure 7 shows the operating element 26g of the operating unit 24g in a greatly simplified lateral partial illustration. The operating element 26g is rotatably mounted about a movement axis 28g. The operating unit 24g has an actuating element 74g. In particular, the operating element 26g is at least for the most part in a direction perpendicular to the movement axis 28g to the actuating element 74g staggered. The movement axis 28g of the operating element 26g is at least essentially perpendicular to the movement axis 18g of a clamping unit (not shown here) (cf. Figure 1b ).

The operating unit 24g has an operating gear unit 30g. The operating gear unit 30g is designed as a rack and pinion gear unit. The operating gear unit 30g has a first rack and pinion gear element 130g. The first rack gear element 130g has at least one tooth recess. The first rack and pinion gear element 130g advantageously has a plurality of tooth recesses. The first rack gear element 130g is advantageously arranged on the actuating element 74g of the operating unit 24g. The first rack gear element 130g is preferably formed in one piece with the actuating element 74g. In addition, the operating gear unit 30g has at least one second rack gear element 132g. The second rack gear element 132g is designed as a tooth. The second rack and pinion element 132g is at least partially formed from metal. As an alternative or in addition, the second rack gear element 132g can also be designed as a tooth and / or a pin and / or as a second rack gear element 132g that appears to be useful to a person skilled in the art. In addition, the second rack and pinion element 132g can also be at least partially made of plastic and / or another material that appears sensible to a person skilled in the art. The second rack gear element 132g has an outer contour that at least partially corresponds to a tooth recess of the first rack gear element 130g. The second rack gear element 132g is designed as a pawl, in particular as a pawl. The second rack-and-pinion gear element 132g is mounted in a guide recess 133g of the operating unit 24g such that it can be moved translationally. The second rack gear element 132g is mounted such that it can move in translation along a translation axis 128g. The translation axis 128g is aligned at least substantially perpendicular to the movement axis 28g. In at least one operating state, the translation axis 128g is oriented at least substantially perpendicular to the movement axis 18g of the clamping unit. The second rack gear element 132g is resilient by means of a spring element on a rotary joint 116g of the operating element 26g stored. In particular, the second rack gear element 132g is provided in at least one operating state, in particular to form a release position of the clamping unit, a non-positive and / or positive connection with the first rack gear element 130g, in particular with at least one tooth recess of the plurality of tooth recesses, for a power transmission to form on the actuating element 74g. In particular, the operating element 26g is provided by means of a rotary movement exerted by an operator force to at least partially transmit the operator force from the second rack gear element 132g to the actuating element 74g. In addition, an operating gear unit 30g can have additional rack and pinion gear elements 132g that are offset in the direction of rotation of the operating element 26g relative to the second rack and pinion gear element 132g. Alternatively, it is conceivable that the second rack gear element 130g is at least non-positively and / or positively connected to the actuating element 74g and the first rack gear element 132g non-positively and / or positively connected to the operating element 26g.

Figure 8 shows the operating element 26h of the operating unit 24h in a greatly simplified and partial illustration from the side. The operating element 26h is mounted rotatably about a movement axis 28h. The operating element 26h is designed at least for the most part as a cylindrical body. The movement axis 28h is at least substantially perpendicular to a movement axis 18h of a clamping unit (not shown here) (cf. Figure 1b ) aligned. The operating unit 24h has at least one operating gear unit 30h. In particular, the operating gear unit 30h is at least partially formed in one piece with the operating element 26h. The operating gear unit 30h is advantageously formed at least partially by the operating element 26h. The operating gear unit 30h is at least partially designed as a cam gear unit. In particular, the operating gear unit 30h comprises at least one first cam gear element 136h. The first cam gear element 136h is designed as a cylinder body. The first cam gear element 136h is preferably formed from metal. As an alternative or in addition, the first cam gear element 136h can be formed from a plastic and / or from another material that appears sensible to a person skilled in the art. The first cam gear element 136h is at least partially formed as a hollow body with a substantially cylindrical cavity 134h. The cavity 134h is arranged at least partially asymmetrically to the movement axis 28h. A wall thickness of the cavity 134h is preferably formed asymmetrically to the movement axis 28h of the operating element 26h. The first cam gear element 136h has at least one groove recess 138h. The groove recess 138h is designed as a recess along the circumference of the first cam gear element 136h. The groove recess 138h is designed as a breakthrough recess from an outer region of the first cam gear element 136h into the cavity 134h. The groove recess 138h is advantageously formed along the circumference at a circumferential angle of advantageously at least 90 ° and particularly preferably at least 180 °.

In addition, the operating gear unit 30h has at least one second cam gear element 140h. The second cam gear element 140h is arranged at least on one end of an actuating element 74h of the operating element 26h facing the operating element 26h. The second cam gear element 140h is non-positively and / or positively connected to the actuating element 74h. The second cam gear element 140h is at least partially designed as a transverse bar. The second cam gear element 140h is formed at least partially in one piece with the actuating element 74h.

The second cam gear element 140h has at least one longitudinal extension 98h which is arranged at least substantially perpendicularly relative to a main extension direction of the actuating element 74h. The longitudinal extension 98h of the second cam gear element 140h is arranged at least substantially parallel to the movement axis 28h of the operating element 26h. The longitudinal extension 98h of the second cam gear element 140h has a greater amount than an extension of the groove recess 138h in a direction parallel to the movement axis 28h of the operating element 26h. In an assembled state of the operating unit 24h, the second cam gear element 140h is arranged at least partially within the cavity 134h of the first cam gear element 136h. The second cam gear element 140h is form-fitting and captive with the first cam gear element 136h connected. The actuating element 74h is passed through the groove recess 138h. The actuating element 74h is movably supported within the groove recess 138h. A rotary movement of the operating element 26h and / or the first cam gear element 136h causes an arrangement of the cavity 134h of the first cam gear element 136h that is asymmetrically distributed to the axis of movement 28h of the operating element 26h and consequently a translational movement of the second cam gear element 140h and / or the actuating element 74h, which is essentially parallel to a movement axis 18h of the clamping unit (cf. Figure 1b ) is aligned.

Figure 9 shows an operating unit 24i of a quick release device 10i in a greatly simplified, perspective partial illustration. The operating unit 24i has at least one operating element 26i. The operating element 26i is designed as a sliding switch element. In particular, the operating element 26i has at least two switch positions 106i, 108i, between which the operating element 26i is slidably mounted. In particular, the operating element 26i is mounted translationally by means of at least one first guide element 142i. The operating element 26i is advantageously also mounted in a translationally displaceable manner by means of at least one second guide element 144i. In particular, the operating element 26i is mounted such that it can move in translation along a movement axis 28i. The movement axis 28i is at least substantially perpendicular to a movement axis 18i of a clamping unit, not shown here (cf. Figure 1b ) aligned. In particular, the movement axis 28i has at least one vector component which is at least substantially perpendicular to the movement axis 18i of the tensioning unit. The operating element 26i is arranged at least partially on an outer side of a gear housing unit 58i of a portable machine tool (here without a reference symbol) shown here only in part. The operating element 26i is arranged on an outside of the transmission housing unit 58i.

The operating unit 24i advantageously has at least one contact element, not shown here, which is connected to the operating element 26i at least in a non-positive and / or positive manner. The contact element is advantageously made of metal. The contact element is advantageously in an inner area of the gear housing unit 58i arranged. Alternatively, the contact element can be arranged at least partially on an outside of the gear housing unit 58i and made from a plastic and / or another material that appears sensible to a person skilled in the art. In addition, it is conceivable that the contact element is at least partially connected in one piece to the operating element 26i. In at least one operating state of the quick release device 10i, the contact element is provided to transmit a pushing force exerted on the operating element 26i to an actuating element which is in contact with the contact element. It is conceivable that a contact element is designed as a wedge element, interacts with a toggle lever unit and / or is designed as a contact element that appears sensible to a person skilled in the art for an operating element 26i designed as a sliding switch element.

Figure 10 shows the operating unit 24j in a greatly simplified, enlarged partial illustration. The operating unit 24j has an operating element 26j. The operating element 26j is designed as an inclined plane. The operating element 26j has at least one movement axis 28j which is aligned at least substantially perpendicular to a movement axis 18j of a clamping unit, not shown here (cf. Figure 1b ). The operating element 26j forms at least one actuation area 42j. The actuation area 42j forms a plane which is at least partially inclined to the movement axis 28j of the operating element 26j. In particular, the plane of the actuation region 42j of the operating element 26j forms an at least substantially acute angle 82j with the axis of movement 28j of the operating element 26j. The operating unit 24j also has an actuating element 74j. The actuating element 74j has a guide element 142j at least at one end facing the operating element 26j. The guide element 142j is advantageously mounted so as to be at least partially movable. For example, the guide element 142j can be designed as a rolling cylinder, a rolling wheel, a ball and / or as a guide element 142j that appears sensible to a person skilled in the art. In addition, it is also conceivable to form the guide element 142j from a material with a surface that is free of friction for at least a large part. In particular, the operating element 26j is provided to form at least one contact area 38j on a side of the actuating element 74j facing the tensioning unit, in which the guide element 142j with the actuation region 42j is provided for transmitting an actuation force and / or operator force to the clamping unit. In particular, the operating element 26j is intended to move the clamping unit into the release position to form a contact area 38j between the guide element 142j and the actuating area 42j. In particular, the operating element 26i is provided for transmitting an operating force along the movement axis 28j of the operating element 26j to the operating element 74j. A movement of the operating element 26j in the axis of movement 28j by means of the transmission of the operating force to the operating element 74j consequently brings about a movement of the operating element 74j along the axis of movement 18j of the clamping unit. In particular, in a clamping position of the clamping unit (cf. Figure 1 ) at least substantially prevents formation of the contact area 38j between the actuating element 74j and the operating element 26j.

Figure 11 shows an operating element 26k according to the invention of an operating unit 24k according to the invention in a greatly simplified, lateral partial illustration. The operating element 26k is designed as a push button. The operating element 26k is arranged at least partially on an outside of a gear housing unit, not shown here. The operating element 26k is also partially arranged in an inner region of the transmission housing unit. The operating element 26k has a movement axis 28k, which is at least substantially parallel to a movement axis 18k of a clamping unit, not shown here (cf. Figure 1b ) runs. The operating element 26k is provided to transmit an operating force, in particular a pressure force, exerted by an operator at least essentially along the movement axis 18k of the clamping unit on the operating element 26k, to an operating element 74k of the operating unit 24k. The operating element 26k advantageously has at least one contact pin 150k, at least a large part of which is arranged in an inner region of the transmission housing unit. The contact bolt 150k is preferably at least partially designed as a cylinder with an at least substantially round cross section and has an at least partially rounded end for forming a contact surface with the actuating element 74k. Alternatively or additionally, the contact pin 150k can be a square, have a polygonal cross section and / or a cross section that appears sensible to a person skilled in the art. The contact bolt 150k is preferably made of plastic. As an alternative or in addition, the contact bolt 150k can also be made of metal and / or a material that appears sensible to a person skilled in the art. The contact bolt 150k is at least non-positively and / or positively connected and preferably at least partially in one piece with the operating element 26k. The contact bolt 150k is advantageously provided to be in contact with the actuating element 74k at least in one operating state for a transfer of the tensioning unit from the tensioning position to the release position. The contact bolt 150k is provided to transmit an operator force to the actuating element 74k of the operator control unit 24k and / or to the tensioning unit. Advantageously, at least the contact bolt 150k is resiliently mounted to provide a restoring force by means of a holding unit 46k, which comprises at least one holding spring element 54k.

Figure 12 shows an operating element 26I of an operating unit 24I in a simplified partial illustration of the side. The operating element 26I is designed as a pressure lever. In particular, the operating element 26I is mounted rotatably about a swivel joint 116l. The operating element 26l is mounted rotatably about a movement axis 28l. The movement axis 28l is at least substantially perpendicular to a movement axis 18l of a clamping unit, not shown here (cf. Figure 1b ) aligned. The operating element 26I has a contact pin 150l arranged eccentrically to the movement axis 28I. The contact pin 150l is arranged along a longitudinal extension between the rotary joint 116l and an operating area 146l of the operating element 26l. The contact pin 150l is provided to contact an actuating element 74l of the operating unit 24l in order to transmit an operator force. It is conceivable that the operating unit 24l has at least one holding unit which exerts a restoring force on the operating element 26l by means of a holding spring element. Alternatively or additionally, it is conceivable that the operating unit 24l has a restoring spring element which interacts with the swivel joint 116l and exerts a restoring force on the swivel joint 116l and / or on the operating element 26l.

Figure 13 shows a quick release device 10m, which has an operating unit 24m with an operating element 26m, in a greatly simplified and lateral partial illustration. The operating element 26m is designed as a pivot lever. At least a large part of the operating element 26m is arranged on an outside of a transmission housing unit 58m of a portable machine tool 60m. The operating element 26m is mounted pivotably about a swivel joint 116m. The operating element 26m is mounted pivotably about a movement axis 28m. The movement axis 28m of the operating element 26m is oriented essentially perpendicular to a movement axis 18m of a clamping unit 12m. The rotary joint 116m of the operating element 26m is arranged along the axis of movement 18m of the clamping unit 12m, vertically offset from an operating element 74m of the operating unit 24m. The movement axis 28m of the operating element 26m intersects the movement axis 18m of the clamping unit 12l. Alternatively, the movement axis 28m of the operating element 26m can be arranged offset to the movement axis 18m of the tensioning unit 12m in a direction perpendicular to the movement axis 18m of the clamping unit 12m.

The operating element 26m has a projection 122m. The projection 122m is designed in the shape of a semi-cylinder and forms an outer contour of half a cylinder jacket surface. The projection 122m forms a contact area 38m in which the projection 122m can be contacted with an actuating element 74m of the operating unit 24m. The swivel joint 116m is arranged in the region of the projection 122m of the operating element 26m. The swivel joint 116m is arranged eccentrically in the projection 122m. Alternatively, a projection 122m can be dispensed with, wherein the operating element 26m can at least partially have the shape of a linear and / or curved rod.

A pivoting movement of the operating element 26m about the movement axis 28m of the operating element 26m caused by an operator force forms an operating state in which the operating element 26m contacts the operating element 74m and transfers the operator force to the operating element 74m to form a release position of the clamping unit 12m. To form the release position of the tensioning unit 12m, a direction of longitudinal extent 114m of the operating element 26m is essentially parallel to a surface of the Gear housing unit 58m formed. To form the release position of the tensioning unit 12m, the direction of longitudinal extent 114m of the operating element 26m forms an at least substantially acute angle 82m with the movement axis 18m of the tensioning unit 12m. Alternatively, to form the release position of the tensioning unit 12m, the longitudinal direction 114m of the operating element 26m can be oriented perpendicular to the movement axis 18m of the tensioning unit 12m and / or at least partially skewed to the surface of the gear housing unit 58m.

In a tensioning position of the tensioning unit 12m, the operating element 26m is advantageously not in contact with the operating element 74m. In the tensioning position, the operating element 26m is inclined relative to a position of the operating element 26m of the release position of the tensioning unit 12m about the movement axis 28m of the operating element 26m. A longitudinal extension direction 114l 'of the operating element 26m for forming the clamping position is advantageously aligned at least substantially parallel to the movement axis 18m of the clamping unit 12m. In the clamping position of the clamping unit 12m, the longitudinal extension direction 114m 'advantageously forms an at least substantially obtuse angle 82m with the longitudinal extension direction 114m in the release position of the clamping unit 12m. Alternatively, in the clamping position, the longitudinal extension direction 114m 'can enclose an at least substantially obtuse angle 82m or an at least substantially acute angle 82m with the axis of movement 18m of the clamping unit 12m.

Figure 14 shows an operating unit 24n with an operating element 26n in a greatly simplified lateral partial illustration. The operating element 26n is designed as a pull handle. The operating element 26n has at least one swivel joint 116n and is mounted pivotably about the swivel joint 116n. The operating element 26n is mounted pivotably about a movement axis 28n. The movement axis 28n of the operating element 26n is essentially perpendicular to a movement axis 18n of a clamping unit, not shown here (cf. Figure 1b ) aligned. In particular, a force exerted by an operator force in a direction parallel to the axis of movement 18n of the clamping unit causes a movement of the operating element 26n in one of a direction not shown here Actuating direction facing away from a formation of a release position of the clamping unit. Alternatively, the operating element 26n can be designed as a pull lever which is rotatably mounted about a swivel joint 116n and is provided by means of a pulling force to form the release position of the clamping unit.

Figure 15 shows a holding unit 46o of a quick release device 10o in a partial side view. The holding unit 46o is provided for an arrangement on a gear housing element of a portable machine tool (not shown here). The holding unit 46o is provided for holding the operating element 26o in at least one movement position of the operating element 26o. The holding unit 46o is advantageous for holding the operating element 26o to form a release position and / or a clamping position of a clamping unit, not shown here (cf. Figure 1b ) intended. The holding unit 46o is preferably provided for holding the operating element 26o in order to form a release position of the clamping unit. The holding unit 46o advantageously has at least one form-fit element 48o, advantageously at least two form-fit elements 48o. The form-fit element 48o is provided to form a latching connection with the operating element 26o. In particular, the form-fit element 48o encompasses at least a large part of the operating element 26o. The form-fit element 48o is at least partially made of a resilient material. The form-fit element 48o is preferably at least partially made of plastic. Alternatively, the form-fit element 48o can be made of metal. The form-locking element 48o has at least partially an at least partially U-shaped cross section (without reference symbols). A contour of the U-shaped cross section of the form-fit element 48o corresponds at least partially to an outer contour of a cross section of the operating element 26o. The form-fit element 48o has at least two form-fit legs 152o. The form-fit legs 152o enclose the operating element 26o on two sides of the operating element 26o facing away from one another. At least one form-fit limb 152o of the form-fit limb 152o has a latching lug 154o. The latching lug 154o is designed to correspond to a latching recess (without reference number) of the operating element 26o. For a fixation, the latching lug 154o is provided for an at least partially form-fitting engagement of the latching lug 154o in the latching recess.

Both form-fit legs 152o preferably have at least one latching lug 154o. Alternatively or additionally, at least one latching lug 154o can be arranged at one end of one of the form-locking legs 152o and designed as a hook. Furthermore, it is also possible that the form-fit element 48o completely and / or on one side encompasses the operating element 26o at least for fixing in at least the release position or the clamping position of the clamping unit. In addition, a holding element can be designed as a latching cap, which has an at least essentially cylindrical outer shape, and designed for a latching connection with a ball element and / or a ball push button of an operating element 26o and at least partially arranged on an outside of a transmission housing unit (not shown here) .

Figure 16 shows a holding unit 46p in a perspective illustration. The holding unit 46p comprises at least one magnetic element 50p. The magnetic element 50p is preferably arranged at least partially on an outside of a gear housing unit of a portable machine tool (not shown here). The magnetic element 50p is provided for holding an operating element, not shown here, made of a ferromagnetic material. The magnetic element 50p is provided to hold the operating element in at least one movement position of the operating element. The magnetic element 50p is advantageous for holding the operating element in order to form a release position and / or a clamping position of a clamping unit, not shown here (cf. Figure 1b ) intended. The magnetic element 50p is preferably provided for holding the operating element in order to form a release position of the clamping unit.

Figure 17 shows a holding unit 46q in a perspective illustration. The holding unit 46q comprises a holding element 52p. The holding element 52q is designed as a cant lever. The holding element 52q comprises a canted projection 156q which is provided for a canted connection with a corresponding holding element 52q of an operating element (not shown here). The holding unit 46q also has a holding spring element 54q. The retaining spring element 54q is made of metal. The retaining spring element 54q is arranged on the retaining element 52q. The retaining spring element 54q is preferred positively and / non-positively connected to the holding element 52q. The retaining spring element 54q is provided as a restoring element. Alternatively, the retaining spring element 54q can be connected at least partially in one piece to the retaining element 52q. The holding unit 46q is mounted rotatably about a swivel joint 124q. The holding unit 46q is preferably mounted so as to be rotatable about an axis of rotation 158q of the holding unit 46q. The holding unit 46q is mounted rotatably about the axis of rotation 158q by means of an operator force. By means of the operator's force, a canted connection can be formed between the holding unit 46q and the operating element. The canted connection between the holding unit 46q and the operating element can preferably be formed in a release position of a clamping unit (not shown here).

Figure 18 shows a damping unit 56r of a quick release device in a perspective partial view. The damping unit 56r is arranged at least partially on an outside of a transmission housing unit 58r of a portable machine tool, which is only partially shown here. The damping unit 56r is advantageously arranged in an at least partially close range to an operating element (not shown here). The damping unit 56r is provided for damping a return movement of the operating element. The damping unit 56r is provided for applying a frictional force to the operating element. The damping unit 56r is provided at least partially to absorb a restoring force of the operating element. The damping unit 56r is designed as a wrap spring brake. The damping unit 56r has a brake body 162r. The brake body 162r is non-rotatably connected to an operating element, not shown here. Alternatively, the brake body 162r can be connected non-rotatably to an actuating element (not shown here). An axis of rotation (not shown here) is advantageous at least essentially parallel to a movement axis 18r of a clamping unit (not shown here) (cf. Figure 1b ) aligned. The damping unit 56r has at least one damping element 160r, which is designed as a loop spring wire. The damping element 160r is advantageously connected to the operating element at a first end of the damping element 160r in a non-positive and / or form-fitting manner. The damping element 160r is at a further end of the damping element opposite the first end of the damping element 160r 160r is at least positively and / or positively connected to a holding unit (not shown here) and / or to the transmission housing unit 58r. Alternatively, a damping unit 56r can be designed as a pneumatic or hydraulic and / or a damping unit 56r that appears sensible to a person skilled in the art.

Claims (9)

1. Quick-change clamping device for a portable power tool, in particular for a power angle grinder, having at least one clamping unit (12k) that, for the purpose of fixing an insert tool unit (14k) to an output shaft (16k) of the portable power tool without the use of any tools, has at least one clamping element (20k) that is mounted so as to be movable, at least about and/or along a movement axis (18k) of the clamping unit (12k), and having at least one control unit (24k), having at least one movably mounted control element (26k), at least for actuating the clamping unit (12k), wherein the control element (26k) is designed, at least, to bring the clamping unit (12k) from a clamping position into a release position in dependence on a movement of the control element (26k), wherein the control element (26k) is mounted in an at least translational manner, characterized in that the control element (26k) is realized as a pushbutton and has a movement axis (28k) that runs at least substantially parallel to the movement axis (18k) of the clamping unit (12k).
2. Quick-change clamping device according to Claim 1, characterized in that the control element is designed to transmit a force, in particular a pressure force, exerted at least substantially vertically, in particular at least substantially parallel to the movement axis of the clamping unit, upon the control element by an operator, to the actuating element and/or the clamping unit.
3. Quick-change clamping device according to either of the preceding claims, characterized in that the control element has at least one contact bolt that, at least largely, is arranged in an inner region of the transmission housing unit and that is connected at least by non-positive and/or positive engagement, and preferably in part integrally, to the pushbutton.
4. Quick-change clamping device according to Claim 3, characterized in that the contact bolt is designed to be contacted, at least in an operating state, for the purpose of moving the clamping unit from the clamping position into the release position, and to transmit the operator force to the actuating element and/or the clamping unit.
5. Quick-change clamping device according to one of the preceding claims, characterized in that, for the purpose of providing a restoring force, the pushbutton is mounted by means of a preferably resilient restoring element.
6. Quick-change clamping device according to one of the preceding claims, characterized in that the pushbutton is formed from a plastic or from a metal.
7. Quick-change clamping device according to either of the preceding claims, characterized in that the control element (26k) is arranged, at least in part, on an exterior of a transmission housing unit.
8. Quick-change clamping device according to one of the preceding claims, characterized in that the control element (26k) is arranged, at least in part, in an inner region of the transmission housing unit.
9. Portable power tool (60a), in particular power angle grinder, having at least one quick-change clamping device according to any one of the preceding claims.

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