CN106826700B

CN106826700B - Kit for a hand-held power tool

Info

Publication number: CN106826700B
Application number: CN201611107788.1A
Authority: CN
Inventors: T·迪尔; J·盖尔林
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2015-12-07
Filing date: 2016-12-06
Publication date: 2021-08-10
Anticipated expiration: 2036-12-06
Also published as: CN106826700A; DE102015224447A1; EP3178613A1; EP3178613B1

Abstract

The invention relates to a kit for a hand-held power tool, comprising a cutting unit which is provided for garden activities. The attachment is connected to the hand-held power tool via a locking unit and has a transmission with a coupling device. The coupling device can be switched by the actuating unit.

Description

Kit for a hand-held power tool

Technical Field

The invention relates to a kit for a hand-held power tool.

Background

Kits for hand-held power tools, in particular drills and screwdrivers, are known for use in mowing, cutting bushes and hedge cutting. DE 2542775 a1 discloses a connecting device for connecting a work apparatus to an electric motor drive of a hand-held power tool. The coupling device is connected to the forward drive shaft of the drive device via a coupling device part on the working device, which receives the drive shaft.

Disclosure of Invention

The invention relates to a kit for a hand-held power tool, in particular a drilling machine or a hand-guided screwing machine, comprising a locking unit having at least one locking element for releasably locking the kit to a housing of the hand-held power tool. The hand-held power tool has a drive unit, in particular a motor, which is coupled to a driven shaft. The locking unit preferably has at least one element for preventing rotation and at least one element for axially securing the attachment to the hand-held power tool. One possible locking unit is described in DE 102007006329 a 1. Alternative locking units, such as bayonet locks, are also conceivable.

Furthermore, the kit has a cutting unit with at least one cutting element. The at least one cutting element is preferably designed as a sleeve for mowing, bush-cutting or hedge-cutting. The sleeve widens the functional range of the hand tool from, for example, a screwing function or a drilling function to a cutting function, in particular in the garden area.

The kit has a transmission (in particular a variable-speed transmission) for transmitting a torque from the hand-held power tool to the cutting unit drive element, wherein the transmission comprises at least one drive shaft which can be coupled in a rotationally fixed manner to a tool receptacle of a driven shaft of the hand-held power tool. The cutting unit preferably has an eccentric unit which is designed to convert a rotary motion of a driven shaft of the kit into a substantially linear motion of the at least one cutting element. Advantageously, the cutting unit comprises two cutting elements, wherein the first cutting element is mounted in a non-movable manner in the housing of the kit and the second cutting element is moved along the longitudinal extension of the first cutting element in a substantially linear movement. The first and second cutting elements of the kit may also both be movably supported in the housing. Alternatively, the linear movement of the second cutting member can also be performed perpendicular to the longitudinal extension of the first cutting member. The cutting element is preferably arranged at least partially outside the housing of the kit. The cutting element can be fixedly connected to the kit and therefore cannot be replaced. The transmission is advantageously designed in such a way that operation is effected in a left-hand and right-hand manner.

Furthermore, the kit comprises a coupling device for the interruptible transmission of a torque from a driven shaft of the kit to a drive element of the cutting unit, which coupling device can be switched into a disengaged (ausgekuppelten) state a and an engaged (eingekuppelten) state B. In particular, the coupling device may be configured to be manually switchable. In the disengaged state a, in particular no torque is transmitted from the drive shaft to the cutting unit. In this state a, the actuation of the operating switch of the hand-held power tool does not cause the operation of the cutting unit of the kit. In the engaged state B, torque is transmitted from the drive shaft of the kit to the cutting unit and the cutting unit can be operated. The coupling device can advantageously be designed as part of a securing mechanism of the kit. If the coupling device is designed as part of a safety mechanism, the coupling device can be actuated in particular simultaneously by means of an operating switch of the hand-held power tool. This has the advantage that the following possibilities are minimized or completely excluded: this possibility allows the user of the kit to inadvertently touch the cutting element.

Furthermore, the angle between the main axis of the drive train of the kit and the longitudinal extension of the at least one cutting element may preferably be an angle in the range of 80 ° to 90 °. The drive train of the package comprises a drive shaft and a transmission of the package. In particular, the angle is configured to be less than 90 °, which has ergonomic advantages for the user during operation of the kit. The angle range is preferably selected from 80 ° to 90 ° in such a way that it can be achieved solely by using an eccentric unit. No additional design by means of an articulation shaft or an angle drive is required, which enables a simple and compact construction of the kit.

Furthermore, the coupling device can be actuated manually, preferably by means of an actuating element of the actuating unit. The actuating element can be designed, for example, as a switch or a pushbutton for switching to the engaged state a or the engaged state B. By actuating the actuating element, the coupling device can be manually switched into the disengaged state a or the engaged state B.

The coupling device preferably comprises a first coupling device half, which is coupled to the actuating unit, wherein the actuating unit is assigned to the actuating unit. The adjustment unit is designed to: the first coupling device half is adjusted between the states a and B, in particular in the axial direction. The adjusting unit comprises a switching element, which can be designed, for example, as an adjusting bow (Verstellb ü gel). The first coupling device half is connected to the adjusting unit, in particular, in such a way that a movement of the adjusting unit triggers a movement of the first coupling device half. Advantageously, the coupling of the actuating unit to the actuating element is designed in such a way that the direction of movement of the actuating unit is the same as the direction of movement of the first coupling device half triggered thereby.

The adjusting unit is in particular coupled to the actuating unit. In particular, at least one adjusting element of the adjusting unit is adjustable in the axial direction in such a way that an actuation of the actuating unit triggers an axial adjustment of the adjusting element and thus an axial movement of the first coupling half.

Furthermore, the actuating unit or actuating element preferably has at least one receiving opening, in particular approximately circular(rundlich) or round

For coupling the adjustment unit with the operating element. This coupling is established by the insertion of an insertion element (for example a pin) into the receiving opening. The insertion element is preferably inserted into the receiving opening in a form-fitting manner. If the receiving opening is arranged on the adjusting unit, the insertion element is assigned to the actuating element and vice versa. By coupling the actuating element to the actuating unit, the actuation of the actuating element also effects a movement of the actuating unit.

Advantageously, the adjusting unit is loaded by a spring element, wherein the force exerted by the spring element on the adjusting unit secures the adjusting unit and thus the first coupling device half in the disengaged state a.

Alternative embodiments of the receiving opening are also conceivable: the receiving opening is in particular designed in the form of a chute. An insert element (for example in the form of a bolt) corresponding to the slide groove is advantageously arranged in the slide groove in a movable manner. The actuation of the gate (for example by pivoting) preferably causes a change in the axial position of the actuating unit.

Furthermore, the actuating element can preferably be actuated manually, in particular by a pulling, sliding or pressing actuation, essentially along the axial main axis of the drive train of the kit.

Advantageously, the axial actuation of the actuating element takes place counter to a force, for example a spring force acting on the actuating unit via a spring element. The actuating element can be designed in the form of a push button, so that the coupling device can be switched between the disengaged state a and the engaged state B by actuating the push button switch. The spring element can be arranged in particular between the push button switch and the adjustment unit.

In an alternative embodiment of the actuating unit, a spring element acts on the actuating unit at one axial end along the axial main axis of the drive train of the kit and acts on the housing of the kit from the inside at the other axial end. Advantageously, the adjusting unit is pressed into a position corresponding to the coupling device disconnected state a by the spring force of the spring element. Manipulation of the actuating element against the spring force (for example a pulling manipulation) releases the adjusting unit from the disengaged state a and displaces the adjusting unit and thus into the engaged state B in accordance with the coupling device. The actuating element for the pull-actuating operation is advantageously designed as an elastic ferrule (elastische Schlaufe). In a particularly advantageous manner, the actuation of the actuating element can be coupled to the actuation of a run switch of the hand-held power tool. For this purpose, the length of the spring collar is configured in such a way that, in the engaged state B, the actuating element is in contact with the operating switch. In this embodiment, the coupling device and the actuating unit can also be designed as parts of a safety mechanism. Unintentional actuation of the operating switch does not contribute to the operation of the cutting unit without deliberate actuation of the actuating unit.

Furthermore, the actuating element can alternatively be manually actuated (in particular by pressing) substantially radially with respect to the main axis of the drive train of the kit. The actuating element for the push actuation can be designed, for example, as a push switch or push button. The radial actuating direction of the actuating element has the advantage that the actuating unit and the coupling device can also be realized in different transmission types (e.g. spline transmissions).

Furthermore, the actuating element can alternatively be manually actuated (in particular by a sliding actuation or a pivoting actuation) substantially transversely to the axial main axis of the drive train of the kit. For this purpose, the actuating element can be designed in particular as a slide switch or as a rocker lever. If the actuating element is configured, for example, with a receiving opening in the form of a sliding groove, the insertion element of the adjusting unit, which is inserted into the sliding groove, can be adjusted by a pivoting actuation.

Advantageously, the first coupling device half can be connected to the second coupling device half in a form-fitting and/or friction-fitting manner. For this purpose, the first coupling device half can have a form-locking element on its outer circumferential surface. In particular, the first coupling device half is spatially spaced apart from the second coupling device half in the disconnected state a. The first coupling device half can be adjusted by the actuating element via the adjusting unit. For coupling with the adjusting unit, the first coupling device half can have an additional form-locking element. The additional form-locking element can be designed, for example, as a groove running around the outer circumference. By adjusting the first coupling device half, a connection can be established between the first coupling device half and the second coupling device half. Advantageously, the coupling device is displaced into the engaged state B by a form-locking and/or frictional connection of the first coupling device half with the second coupling device half. Preferably, the first coupling device half is mounted in a rotationally fixed manner in the engaged state B.

The second coupling device half can be configured as a separate securing element in the form of a securing ring. The securing ring can be designed to be open or closed. The second coupling device half can in particular be fixedly mounted in a housing of the kit. Alternatively, it is also conceivable that the second coupling device half can be designed as a housing part. The second coupling device half has, in particular, a form-locking element for coupling with the first coupling device half. The form-locking element can be designed as a form-locking element which projects radially inward. These form-locking elements can be designed in particular as teeth. The second coupling device half is advantageously designed as a forceps-shaped form-locking element with radially inner toothing. In particular, the second coupling device half engages around the first coupling device half in the engaged state B in such a way that the form-locking elements of the second coupling device half establish a form-locking connection with the corresponding form-locking elements of the first coupling device half.

The transmission of the kit can have at least one transmission stage (getriebeffe) for increasing the rotational speed of the output shaft of the kit on the basis of the rotational speed of the drive shaft of the kit. This has the advantage that the drive element of the cutting unit can be operated at a rotational speed typical for cutting units. The transmission is advantageously designed as a planetary transmission (in particular as a single-stage planetary transmission).

The first coupling device half is designed as an axially displaceable ring gear of the planetary gear. The first coupling half is thus in particular designed as a component of a planetary gear. Advantageously, the ring gear has on its radially outer circumferential surface a toothing which corresponds to the form-locking element on the radially inner side of the second coupling device half.

Furthermore, a hand-held power tool having a kit according to the invention is provided. The hand-held power tool has a locking unit for releasable coupling, which corresponds to the locking unit of the kit. Furthermore, the hand-held power tool has a power take-off shaft which has a tool receptacle for coupling in a rotationally fixed manner to a drive shaft of the kit.

Drawings

Other advantages result from the following description of the figures. In which embodiments of the invention are shown. The figures, descriptions and embodiments of the present invention contain a number of features in combination. The person skilled in the art can also consider these features individually and generalize them to other combinations of significance, where appropriate.

FIG. 1: a view of a hand-held power tool operated in the manner of a rechargeable battery, having a kit according to the invention;

FIG. 2: a longitudinal section of a first embodiment of the package in a detached state;

FIG. 3: a partial view in a longitudinal cross-sectional view of the first embodiment of the package in an engaged state;

FIG. 4: an exploded view of a first embodiment of the kit;

FIG. 5: a longitudinal section of a second embodiment of the encasement;

FIG. 5 a: a partial view of a dorsal view of a second embodiment of the kit;

FIG. 6 a: a perspective view of a third embodiment of the kit in a detached state;

FIG. 6 b: a perspective view of a third embodiment of the kit in an engaged state.

Detailed Description

Fig. 1 shows a perspective view of an electric hand-held power tool 10 incorporating a kit 100 according to the invention in a first embodiment. The hand-held power tool 10 has a housing 12 and an operating switch 14 for switching an electric motor 16 on and off, which operating switch 14 is supplied with energy, for example, from an accumulator 18. The motor 16 transmits torque to a transmission that is coupled to a driven shaft (not shown). Another switch 20 is provided for switching the direction of rotation of the driven shaft.

The hand-held power tool 10 is connected to the kit 100 via a locking unit 110. The kit 100 has a housing 102 and a transmission 120 for transmitting a torque from a driven shaft of the hand-held power tool 10 to the cutting unit 180. The handling unit 160 is arranged at least partially outside the housing 102 of the kit 100. The actuating unit 160 is provided for manually switching the gear mechanism 120 between the disengaged state a and the engaged state B by means of the coupling device 150. The transmission 120 is advantageously designed as a single-stage planetary transmission, in particular.

A longitudinal cross-sectional view of a first embodiment of a kit 100 is shown in fig. 2. The end face end of the axial main axis 101 of the drive train of the kit 100 is marked with a point. The locking unit 110 for releasably connecting the kit 100 to the hand tool 10 comprises: a rotatably supported unlocking ring 112; a base body 114, which has a form-locking element 116 for preventing the rotation of the attachment 100 with the housing 12 of the hand-held power tool 10 and an annular spring 118 for axially securing the attachment 100 with the hand-held power tool 10. For details of the locking unit 110 and its function, reference is made to the publication DE 102007006329 a 1. In the central opening 111 of the locking unit 110, the output shaft of the hand-held power tool is coupled in a rotationally fixed manner to a drive shaft 122 of the transmission 120, wherein the drive shaft 122 is received in a tool receiver of the output shaft of the hand-held power tool 10. This establishes a torque transmission from the output shaft of the hand-held power tool 10 to the drive shaft 122 of the transmission 120 of the kit.

The gear unit 120 is designed to increase the rotational speed (Umdrehungsgeschwindigkeit) at which the output shaft 142 of the gear unit 120 rotates relative to the drive shaft 122 of the gear unit 120. The drive shaft 122 of the gear 120 is secured in a slide bearing 124 in the radial direction, wherein the slide bearing 124 is acted upon laterally by two disks 126. The drive shaft 122 of the transmission 120 is connected on the end face, in particular in one piece, to the planet carrier 130. The planet wheels 132 are mounted on the planet carrier so as to be rotatable on a pin. The ring gear 152 is rotatably coupled to the planet gears. Between the planet wheels 132, a sun wheel 134 is centrally arranged. The planet gears 132 and the sun gear 134 are rotatably connected to one another by means of a pinion arrangement formed on their outer circumferential surfaces. The sun gear 134 has a receiving opening centrally disposed for receiving the driven shaft 142. The driven shaft 142 is supported in a bearing 146 in a radial direction and can rotate. The output shaft 142 is connected to a drive element 186 of the cutting unit 180 for transmitting torque. The housing 102 has a housing opening 192 through which the cutting member 184 can protrude out of the housing 102.

A protective barrier 190 is disposed directly spatially adjacent to the housing opening 192. The protective screen 190 is provided to protect the user from small tree branches, for example, which may be agitated by air during operation of the hand-held power tool 10 with the attachment 100. Protective shield 190 may also protect a user (particularly a user's hand or fingers) during a slip (Abrutschen) operation. Protective shield 190 is releasably connected to housing 102 of kit 100, for example.

The protective screen 190 can in particular also be fixedly connected to the housing 102.

Furthermore, the kit 100 has a coupling device 150, the coupling device 150 being provided for: the transmission 120 is switched to either the disengaged state a or the engaged state B. Fig. 2 shows the transmission in a disengaged state a, in which no torque is transmitted from drive shaft 122 to output shaft 142. The coupling device 150 has a first coupling device half 152 and a second coupling device half 154. The first coupling device half 152 is configured to be connectable, for example, positively to the second coupling device half 154. The first coupling device half 152 is designed, for example, as a cylindrical hollow body (in particular as a ring gear of a planetary gear set) which has a pinion arrangement on its inner circumferential surface. The first coupling half 152 is connected to the three planet wheels 132 in a movable manner via a pinion arrangement and is rotatably supported within the housing 102. The outer circumference of the first coupling device half 152 has a first form-locking element 151 and a second form-locking element 153. The first form-locking element 151 is designed, for example, as a toothed ring and is provided for form-locking the first coupling half 152 with the second coupling half 154, which form-locking takes place during the engaged state B. The second form-locking elements 153 are for example arranged as grooves along the outer circumferential surface. The second form-locking element 153 is provided for connecting the coupling device to the actuating unit 160.

In a first embodiment of the kit 100, the actuation of the actuating unit 160 takes place by pulling along the arrow/pulling force 172 against the spring force essentially along the axial main axis 101 of the kit 100. The actuating unit 160 comprises an actuating element 162, an adjusting unit 140, a spring element 166 and a switching element 168. The actuating element 162 in the form of a rubber web is made of an elastic material (e.g., rubber material), for example. The actuating element 162 can have, for example, three openings. The first opening 161 is provided for fastening the operating element 162 to the housing 102 of the kit 100. Such a connection is formed, for example, by: the first opening 161 of the actuating element 162 encloses the screw connection head 105 of the housing 102. The screw-on head 105 of the housing 102 is designed as a cylindrical hollow body and has a thread on its inner lateral surface. The housing 102 of the cartridge 100 comprises two

housing halves

103, 104. The connection of the two

housing halves

103, 104 takes place by means of the screw 108 with the screw top 105 (see fig. 4). A second opening of the actuating element 162 in the form of a receiving opening 163 is configured for connecting the actuating element 162 to the adjusting unit 140. The adjustment unit 140 includes an adjustment element 164 and a switching element 168. The axial longitudinal extension of the actuating element 162 is advantageously configured parallel to the axial longitudinal extension of the adjusting element 164. The actuating element 162 and the adjusting element 164 are mounted so as to be axially movable parallel to one another. The adjusting element 164 has an insertion element, for example in the form of a pin, perpendicular to its axial longitudinal extension. The bolt 165 engages in the interior of the housing 102 in a receiving opening 163 of the actuating element 162 and is thereby connected to the actuating element 162 in a form-locking manner. The additional housing opening 106 is provided for guiding the actuating element 162 at least partially outside the housing 102 of the kit 100. It is thereby possible for the actuating element 162 to be actuated by an actuation outside the housing 102. In order to axially secure the adjusting unit 140, the adjusting element 164 loads the housing 102 at its first axial end 167. The second axial end 169 of the adjusting element 164 is coupled to the spring element 166 via a cylindrical opening, the spring element 166 loading the housing 102 and thus axially securing the second axial end 169. Furthermore, the adjusting element 164 has a groove which is provided for connecting the adjusting element 164 with a switching element 168 in the form of a clip. The shift element 168 of the adjusting unit 140 is positively coupled to the second positive locking element 153 of the first coupling device half 152, wherein the shift element 168 engages around (umgreift) both the adjusting element 164 and the first coupling device half 152. By the form-locking coupling of the shift element 168 to the first coupling device half 152, the axial position of the first coupling device half 152 is coupled to the axial position of the bolt 165 via the adjusting unit 140. The axial position of the bolt 165 can be changed by applying a pulling force 172 to the actuating element 162. Thus, the actuating element 162 is coupled to the first coupling device half 152 in such a way that an actuation of the actuating element 162 causes a change in the axial position of the first coupling device half 152.

The axial length of the spring element 166 is configured in such a way that the coupling device 150 is in the disengaged state a as long as no pulling force 172 is applied. In the disengaged state a, the first coupling half 152 is connected to the planetary wheels 132 of the gear 120. In operation of the hand-held power tool 10, in the disengaged state a, the torque of the drive shaft 122 of the transmission 120 is transmitted via the planetary gears 132 to the first coupling device half 152 in the form of a ring gear. The first coupling device half 152 is rotatably supported and imparts rotational movement. In the detached state a, no torque is thereby applied to the cutting unit 180 of the package 100.

A first embodiment of the kit 100 is shown in figure 3 in a detached state B. An axial pulling force 172 is exerted on actuating element 162, which pulling force 172 acts against the spring force of spring element 166. By coupling the actuating element 162 to the first coupling device half 152, the axial position of the first coupling device half 152 is shifted in such a way that the first form-locking element 151 of the first coupling device half 152 forms an additional form-locking connection with the second coupling device half 154. The second coupling half 154 engages around the first coupling element 152, for example, by means of a corresponding form-locking element 155. By the connection of the first coupling device half 152 with the second coupling device half 154, an anti-rotation device of the first coupling device half 152 is established. By fixing the first coupling half 152, the torque of the planetary wheels 132 of the gear mechanism 120 is transmitted via the sun wheel 134 to the output shaft 142. In the engaged state B, a torque is thereby transmitted to the cutting unit 180 of the kit 100. By releasing the actuating element 162 and, in conjunction therewith, canceling the pulling force 172, the adjusting unit 140 is automatically displaced again into the initial position by the spring force of the spring element 166, which corresponds to the disengaged state a.

For actuation, the actuating element 162 has a third opening 170, for example in the form of an elastic collar. The axial length and/or the elasticity of the actuating element 162 are preferably selected in such a way that the operating switch 14 of the hand-held power tool 10 is simultaneously loaded and actuated when the elastic actuating element 162 is extended as required for the transition from the disengaged state to the engaged state. This advantageously contributes to: the actuation of the operating switch 14 alone does not lead to the operation of the cutting unit 180 of the kit 100, since the coupling device 150 is in the disengaged state B.

In fig. 4 an exploded view of a first embodiment of a kit 100 according to the invention is shown. In the engaged state B, a torque transmission from the output shaft 142 of the transmission 120 to the cutting unit 180 is provided. The cutting unit 180 has a drive element 186, a first cutting element 182 and a second cutting element 184. The drive element 186 includes at least one opening for receiving the driven shaft 142 and has a circular base. Here, the shape of the opening in the drive element 186 corresponds to the end-side shape 143 of the driven shaft 142. The end-side shape 143 is, for example, rectangular, which enables an advantageous torque transmission from the output shaft 142 to the drive element 186. The drive element 186 is configured, for example, as a first eccentric element of an eccentric 188. The second cutting element 184 is mounted movably on the first cutting element 182 and has a second eccentric element 187 on the side facing the drive element 186. The second eccentric element 187 is configured as an elliptical ring package on the second cutting element 184. Rotational motion of the driven shaft 142 is transferred through an eccentric mechanism into linear motion of the second cutting element 184. During operation, the drive element 186 rotates in the second eccentric element 187.

The height of the annular sleeve is selected at least to be so high that a controlled rotation of the drive shaft within the second eccentric element 187 is ensured. In the first embodiment of the kit 100, the angle enclosed by the main axial axis 101 of the kit 100 and the longitudinal extension 107 of the first cutting element 182 has a value of 85 °. The angle is preferably in the range of 80 ° to 90 °. Angles in this preferred range generally provide ergonomic advantages to a user of the kit 100 during operation.

Fig. 5 shows a second embodiment of a kit 100a according to the invention, which differs substantially by an alternative embodiment of the adjustment unit 140a and of the actuating element 162a, wherein the actuating element 162a can be actuated substantially along the axial main axis 101 by actuating. The actuating element 162a is designed, for example, as a slide switch. Actuating element 162a may have latching elements which latch into housing 102a of kit 100 a. The manipulation is essentially performed by a sliding manipulation along the axial main axis 101 of the sleeve 100 a. The adjusting unit 140a is coupled to the actuating element 162a in such a way that, when the actuating element 162a is actuated, an adjustment of the adjusting unit 140a takes place, which in turn causes an axial adjustment of the first coupling half 152 a. The coupling of the actuating element 162 to the actuating unit 140a takes place in the embodiment shown via a receiving opening 165a in the actuating element 164a, which receiving opening 165a engages in an engagement element 163a of the actuating element 162a, which engagement element is designed as a bolt. Coupling device 150a is in disengaged state a. Similar to the first embodiment, the axial position of the adjusting unit 140a is coupled in a form-fitting manner to the first coupling device half 152a by means of a switching element 168a in the form of a clip.

The adjusting element 164a has two defined positions, which correspond to the states a and B. An end 167a on the axial end side of the adjusting element 164a loads the stop element 109a of the housing 102a in the disengaged state a. Adjacent to the opposite axial end 169a of the adjusting element 164a, a latching element 171a is formed on the snap-action latching arm 166 a. The snap-action latch arm 166a exerts a radial force on the latching element 171a, wherein the latching element 171a acts in particular in a force-fitting and form-fitting manner on a second stop element (in particular the screw-on top 105a or a rib inside the housing 102 a). In the disengaged state a, the adjusting element 164a is thus secured in the axial direction at both

axial ends

167a, 169 a. In particular, adjusting element 164a is formed in one piece with latching arm 166a and latching element 171 a.

The actuating element 162a is arranged at least partially outside the housing 102a of the kit and can be actuated. For actuating the actuating unit 160a, the actuating element 162a has a structural element 161a, which structural element 161a is configured, for example, as a projection having a rib-shaped surface structure. Alternatively, it is also conceivable for the structural element 161a to be realized by a rib structure without a projection (Erhebung). The structural element is advantageously arranged in the housing opening 106 a.

By actuating the actuating element 162a substantially along the axial main axis 101 of the sleeve 100a by means of a sliding actuation, the axial securing of the adjusting element 164a connected to the actuating element 162a is released. If the sliding force 172a exceeds a certain threshold, the snap-lock arm 166a yields and the snap-lock element 171a can move past the screw-on top 105 a. At the end of the movement, the catch element 171a snaps back through the undercut. Due to the radial force of the snap-action latch arms 166a, a second securing in radial and axial direction is established, so that the coupling device 150a is fixed in the engaged state B. By actuating the actuating element 162a again in the opposite direction to the displacement force 172a, the coupling device 150a can again be displaced into the disengaged state a.

Alternatively and/or additionally, the securing of the coupling device 150a in the disengaged state a or the engaged state B can also take place by means of at least one elastic force-locking and/or form-locking element 174a of the actuating element 164a, which elastic force-locking and/or form-locking element 174a is arranged in the region of the housing opening 106a of the housing 102a of the kit 100a (see fig. 5). In correspondence with the elastic force-locking and/or form-locking element 174 of the actuating element 164a, the housing 102a has at least two recesses 113a, which recesses 113a are essentially configured in correspondence with the elastic force-locking and/or form-locking element 174 a. The elastic force-locking and/or form-locking element 174a of the actuating element 164a can be displaced by the sliding force 172a from the recess 113a into the further recess 113a of the housing 102.

Fig. 6 shows a third embodiment of a kit 100b according to the invention, which is in turn substantially different by a control unit 160 b. This actuation takes place by means of a pivoting movement along the arrow 172b transversely to the axial main axis 101 of the kit. The adjusting unit 140b is coupled to the first coupling device half by means of a switching element, similar to the previous embodiments. The actuating unit 140b is furthermore coupled to the actuating element 162b as in the previous exemplary embodiment. For this purpose, the adjusting element 164b has an insertion element 165b in the form of an arm, which insertion element 165b is inserted into a receiving opening 173b of a guide link in the form of the actuating element 162b and is mounted in said opening so as to be movable in the axial direction. The guide runner 173b is designed as a recess in the base body of the actuating element 162 b. The actuating element 162b is in particular designed as a lever. The actuating element 162b is arranged at least partially outside the housing 102b and protrudes from the housing 102b through the housing opening 106 b. The actuating element 162b has a pivoting element 163b (in particular in the form of a cylindrical bolt or pin). The pivoting element 163b may be mounted so as to be pivotable in the housing 102b of the kit. The pivoting of the actuating element 162B about the pivoting element 163B by means of the pulling force 172B causes the axial position of the arm 165B to change in such a way that the coupling device is displaced from the disengaged state a (see fig. 6a) into the engaged state B (see fig. 6B) by the coupling of the adjusting element 164B with the first coupling device half.

The kit according to the invention should in this case not be limited to the applications and embodiments described above. In particular, the kit according to the invention can have a number deviating from the number mentioned here of the individual elements, components and units in order to fulfill the functions described here.

Claims

1. A kit for a hand-held power tool (10), the kit having:

a locking unit (110) with at least one locking element (118) for loosening the sleeve (100) with the housing (12) of the hand-held power tool (10) lock in the way of disengagement;

- a cutting unit (180) having at least one cutting element (182);

a transmission (120) for transmitting torque from the hand-held power tool (10) to the drive element (186) of the cutting unit (180),

In this case, the transmission (120) has at least one drive shaft (122), which can be coupled in a rotationally fixed manner with a tool receptacle of a driven shaft of the hand-held power tool (10),

It is characterized in that a coupling device (150) is provided for transmitting torque from the drive shaft (122) of the sleeve (100) to the cutting unit (180) in an interruptible manner. On the drive element (186), the coupling device can be switched into a disengaged state or an engaged state.

2 . The sleeve according to claim 1 , characterized in that between the main axial axis ( 101 ) of the sleeve ( 100 ) and the axial longitudinal extension ( 107 ) of the cutting element ( 182 ) The included angle is 80° to 90°.

3. The kit according to claim 1 or 2, characterized in that the coupling device (150) is configured to be manually switchable.

4 . The kit according to claim 1 , wherein the coupling device ( 150 ) can be actuated manually by means of an actuating element ( 162 ) of the actuating unit ( 160 ). 5 .

5. The kit according to claim 4, characterized in that the coupling device (150) comprises a first coupling device half (152) which is coupled to the adjustment unit (140).

6. The kit according to claim 5, characterized in that the adjustment unit (140) is coupled with the manipulation unit (160).

7 . The kit according to claim 5 , wherein the adjustment unit ( 140 ) or the actuating element ( 162 ) has at least one receiving opening for connecting the adjustment unit ( 140 ) with the A manipulation unit (160) is coupled.

8 . The kit according to claim 5 , wherein the adjustment unit ( 140 ) or the actuating element ( 162 ) has at least one approximately circular or circular receiving opening for enabling the adjustment A unit (140) is coupled to the manipulation unit (160).

9 . The kit according to claim 5 , wherein the adjustment unit ( 140 ) or the actuating element ( 162 ) has at least one receiving opening in the form of a slot for the adjustment unit ( 140 ). 10 . ) is coupled to the manipulation unit (160).

10. The kit according to claim 4, characterized in that the manipulation element (162) is capable of being manually manipulated substantially along the main axial axis (101) of the kit (100).

11. The sleeve according to claim 4, characterized in that the manipulating element (162) can be manipulated, slid by pulling substantially along the main axial axis (101) of the sleeve (100) Manipulation or push manipulation for manual manipulation.

12. The kit according to claim 4, characterized in that the actuating element (162) can be manually actuated substantially radially with respect to the main axial axis (101) of the kit (100).

13 . The sleeve according to claim 4 , wherein the actuating element ( 162 ) can be actuated by pressing substantially radially with respect to the main axial axis ( 101 ) of the sleeve ( 100 ). 14 . Manual manipulation.

14. The kit according to claim 4, characterized in that the manipulation element (162) is capable of being manually manipulated substantially transversely with respect to the main axial axis (101) of the kit (100).

15. The kit according to claim 4, characterized in that the actuating element (162) can be actuated by means of a sliding actuation substantially transversely with respect to the main axial axis (101) of the kit (100) Manual manipulation.

16. The kit according to claim 5, wherein the first coupling device half (152) can be connected to the second coupling device half (154) in a positive and/or frictional manner .

17. The sleeve according to claim 1 or 2, characterized in that the transmission device (120) has at least one transmission stage for changing the rotational speed of the driven shaft (142) of the sleeve (100) The rotational speed of the drive shaft (122) of the sleeve (142) is increased with reference to the above.

18 . The kit according to claim 5 , wherein the first coupling half ( 152 ) is designed as an axially displaceable ring gear of a planetary gear. 19 .

19 . A hand-held power tool ( 10 ) having a kit ( 100 ) according to claim 1 .