EP3389944A1 - Handwerkzeugmaschine mit einer gangumschalteeinheit - Google Patents
Handwerkzeugmaschine mit einer gangumschalteeinheitInfo
- Publication number
- EP3389944A1 EP3389944A1 EP16809004.1A EP16809004A EP3389944A1 EP 3389944 A1 EP3389944 A1 EP 3389944A1 EP 16809004 A EP16809004 A EP 16809004A EP 3389944 A1 EP3389944 A1 EP 3389944A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- transmission
- hand tool
- unit
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 62
- 238000004891 communication Methods 0.000 claims abstract description 47
- 230000004913 activation Effects 0.000 claims description 11
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 230000003213 activating effect Effects 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000012800 visualization Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 28
- 230000008859 change Effects 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 10
- 238000009527 percussion Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/008—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with automatic change-over from high speed-low torque mode to low speed-high torque mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/006—Mode changers; Mechanisms connected thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/005—Adjustable tool components; Adjustable parameters
Definitions
- the present invention relates to a power tool with a drive unit, which has at least one drive motor and a gear coupled to the drive motor for driving an insert tool, wherein the transmission is switchable at least between two different gear ratios.
- Hand power tools are known from the prior art, which have a drive unit with a drive motor and a switchable transmission, wherein the drive unit has a gear changeover unit for switching over
- EP 2 848 371 A1 discloses a hand-held power tool with a speed changeover unit which is provided with an actuatable shift ring and an actuating unit with a servomotor.
- the positioning motor is designed to actuate the operable switching ring for gear changeover between the at least two different gear stages upon activation.
- the present invention provides a new hand-held power tool with a drive unit, which has at least one drive motor and a drive coupled to the drive motor for driving an insertion tool, wherein the transmission is switchable at least between two different gear ratios.
- a communication interface is provided, which is provided for communication with a user-operable user guidance unit and adapted to receive from the user guidance unit switching instructions for application-specific switching of the transmission between the two different gear ratios.
- the invention thus makes it possible to provide a hand tool machine in which an application-specific gear change over the user guidance unit or its switching instructions can be made simple and uncomplicated, so that an inexperienced user can also use the hand tool machine efficiently.
- the user guidance unit is at least partially integrated into the manual power tool and / or at least partially as external, separate
- a suitable user guidance unit can be provided in a simple manner.
- the user guidance unit preferably has a mobile computer, in particular a mobile computer embodied in the manner of a smartphone or tablet computer.
- a mobile computer in particular a mobile computer embodied in the manner of a smartphone or tablet computer.
- other so-called “smart devices” such as a watch, glasses, etc., may be used as a mobile computer, so that widely available mobile computers can be used.
- the user guidance unit has an interactive program for communication with the communication interface, in particular a smartphone app.
- the communication interface in particular a smartphone app.
- the user guidance unit preferably has at least one operating element for initiating a switching process for switching over the transmission between the two different gear ratios, wherein the communication interface is configured to send a control signal to the at least one operating element in order to generate a request to initiate a control Switching to enable switching of the transmission between the two different gear ratios by the at least one control element.
- a switching operation can be initiated in a simple manner.
- the at least one control element is preferably provided with a lighting means and the control signal is configured to activate the lighting means for visualizing the request to initiate a switching operation for switching over the transmission between the two different gear stages.
- the at least one operating element is preferably designed as a switch or key. Thus, an uncomplicated and cost-effective operating element can be provided.
- the at least one operating element has a display and the control signal is designed to generate on the display a display for visualizing the request to initiate a switching process for switching over the transmission between the two different gear ratios.
- the display is designed in the manner of a touch screen.
- the at least one control element for initiating a switching operation for switching the transmission between the two different gear ratios is operable and has a sensor which is adapted to the
- Communication interface upon actuation of the at least one control element to transmit an actuating signal.
- an actuation of the operating element can be confirmed, so that, for example, a further setting step can be displayed on the display.
- a servomotor is provided, which is adapted to switch the transmission between the two different gear ratios when activated.
- an automated gear shift can be enabled.
- the servomotor is preferably activated by an actuation of the at least one operating element.
- the servomotor can be safely and easily activated.
- the communication interface is designed to transmit a control signal to the servomotor for activating the servomotor.
- an activation signal of the at least one operating element can be passed easily and safely to the servomotor.
- the communication interface is preferably designed to transmit a control signal to actuators of the handheld power tool, wherein at least one actuator is designed to switch over the transmission between the two different gear stages upon activation by the communication interface.
- the communication interface is preferably designed in the manner of a wireless transmission module, in particular as a wireless module for wireless communication by means of Bluetooth standard.
- a wireless transmission module in particular as a wireless module for wireless communication by means of Bluetooth standard.
- FIG. 1 is a perspective view of a power tool with a Gangumschalteech and a communication interface
- FIG. 2 is a partially sectioned side view of the power tool of FIG. 1 with a drive unit
- FIG. 3 shows a longitudinal section of the drive unit of the power tool of FIG. 1 and FIG. 2,
- FIG. 4 is a partial perspective view of the gear changeover unit of FIG. 2 with a position detection unit;
- FIG. 5 is an exploded view of the position detection unit of FIG. 2 and FIG.
- FIG. 6 shows a perspective side view of one of the position detection unit of FIG. 4 and FIG. 5 associated switching ring according to a first embodiment
- FIG. 7 is a side perspective view of Gangumschalteech of Fig. 4 with a switching ring according to a second embodiment
- FIG. 8 is a side perspective view of the switching ring of Fig. 7,
- FIG. 10 is a perspective view of a system consisting of the hand tool of Fig. 1 and a control unit according to a first embodiment
- FIG. 1 1 is a partial perspective view of the hand tool of FIG. 1 with a control unit according to a second embodiment
- FIG. 13 is a schematic diagram of the hand tool of FIG. 1 with the example gear change unit and the communication interface.
- FIG. 14 is a perspective view of a gear changeover unit according to a second embodiment
- FIG. 15 is a partial exploded view of the speed changeover unit of FIG. 14; FIG.
- FIG. 16 is a perspective view of the Gangumschalteech of Fig. 14 and Fig. 15 with a shift rod according to a second embodiment, when not installed,
- FIG. 17 is a perspective view of the Gangumschaltetechnik of FIG. 16 with the shift rod in the installed state
- FIG. 18 is a side view of a gear changeover unit according to a third embodiment, in a first gear stage and with a first sensor arrangement
- FIG. 19 is a side view of the speed changeover unit of FIG. 18 in a second speed stage
- FIG. 20 is a side view of the gear changeover unit of FIGS. 18 and 19, in the first gear stage and with a second sensor arrangement, FIG.
- FIG. 21 is a side view of the speed changeover unit of FIG. 20, in the second speed stage;
- FIG. 22 is a perspective view of a speed changeover unit according to a fourth embodiment with the position detection unit of Fig. 4 and Fig. 5,
- FIG. 23 is a side view of the speed changeover unit of FIG. 22 in a first speed stage
- FIG. 24 is a side view of the gear shift unit of FIG. 22 and FIG. 23 in a second gear
- FIG. 25 is a side perspective view of the speed changeover unit of FIGS. 22 to 24, and FIG.
- FIG. 26 is a perspective view of the speed changeover unit of FIGS. 22 to 25 without a transmission housing.
- FIG. 1 shows an exemplary handheld power tool 100 with a housing 110 in which at least one drive motor (120 in FIG. 2) is designed to drive a preferably replaceable insertion tool that can be arranged in a tool holder 190.
- the housing 1 10 a handle 103 with a manual switch 105.
- the drive motor (120 in FIG. 2) can be actuated eg via the manual switch 105, ie switched on and off, and preferably so electronically controllable or controllable that both a reversing operation, as well as specifications with respect to a desired rotational speed can be realized.
- a direction of rotation switch 106 is preferably arranged in the region of the manual switch 105 via which an optional rotation direction of the drive motor (120 in FIG.
- the handheld power tool 100 can preferably be connected to a battery pack 102 for the mains-independent power supply, but can alternatively also be operated depending on the network.
- the hand tool 100 preferably has a switchable transmission (130 in FIG. 2) which can be switched over at least between a first and second gear stage.
- the hand tool 100 is designed in the manner of a percussion drill or drill, wherein the first gear, for example, a screw and the second gear corresponds to a drilling or Schlagbohrmodus.
- other gear ratios can be realized, so that, for example, the drilling mode of the second gear and the Schlagbohrmodus assigned to a third gear, and so on.
- At least one user guidance unit 15 is provided, which is designed at least for setting the first or second speed stage required in the respective current operation.
- the user guidance unit 15 can be designed for active and / or passive user guidance in the case of a corresponding changeover between the first and second gear stage.
- an active user guide a user of the power tool 100 is preferably guided by visual, auditory and / or haptic instructions or prompts for switching in a corresponding switching operation, while in a passive user guide a corresponding switching operation is performed automatically and the user is preferably only displayed. Exemplary implementations of active and passive user guides will be described in detail below.
- the user guidance unit 1 15 at least one manually operable control unit 1 16, 1 17 with at least one and illustratively a first and second manually operable control element 1 16, 1 17, wherein the controls 1 16, 1 17 for initiating a switching operation for switching the Transmission 130 are formed between different gear ratios.
- at least one of the two control elements 1 16, 1 17 may be formed as a switch and / or button.
- the user guidance unit 1 15 has a mobile computer, for example a smartphone and / or a tablet computer, and / or the operating element 1 16, 1 17 can be designed as a display.
- the user guidance unit 1 15 is at least partially integrated into the handheld power tool 100 and / or at least partially designed as an external, separate component (1040 in FIG. 10).
- the display can be Machine tool 100 may be integrated and / or arranged externally.
- switching instructions may be displayed on the display to at least facilitate operation and / or adjustment of, for example, an application specific operating mode of the hand tool 100 to a user of the hand tool 100.
- the handheld power tool 100 preferably has a communication interface 1050, which is preferably provided for communication with the preferably user-operable user guidance unit 15 and is designed to be at least provided by the user guidance unit
- the communication interface 1050 is at least configured to send a control signal to at least one of the operating elements 16, 17. It is preferable to generate a request to initiate a switching operation for switching the transmission 130 between the two different gear stages, e.g. by at least one of the controls 1 16, 1 17 allows.
- the communication interface 1050 is designed in the manner of a wireless transmission module, in particular as a wireless module for wireless communication by means of a Bluetooth transmission module.
- the transmission module may also be used for any other wireless and / or wire communication, e.g. via WLAN and / or LAN, be trained.
- the tool holder 190 arranged to illuminate a working field of the power tool 100, an optional working area lighting 104.
- the tool holder 190 is preferably assigned a torque limiting element 170 for setting a maximum transmittable torque.
- the torque limiting element 170 in the manner of a mechanical
- Slip clutch or an electrical torque limiter may be formed.
- FIG. 2 shows the handheld power tool 100 of FIG. 1, which illustratively has a drive unit 220 with a drive motor 120 and a shiftable transmission
- the shiftable transmission 130 preferably has a transmission housing 136, which is illustratively in two parts with a first and second gear housing part 137, 138 is formed.
- the first gear housing part 137 is preferably arranged facing the drive motor 120
- the second gear housing part 138 is arranged facing the tool receptacle 190.
- the gear housing 136 may also be integrally formed o- have more than two gear housing parts.
- the shiftable transmission 130 is formed in the manner of a planetary gear, which is preferably switchable at least between two different gear ratios, and further described in Fig. 3.
- the shiftable transmission 130 is associated with a gear shift unit 210, which is designed to switch over the shiftable transmission 130 between at least two different gear stages.
- This gear shift unit 210 preferably has at least one actuatable shift ring 140.
- the speed changeover unit 210 preferably has a transmission unit 134.
- the operable switching ring 140 is preferably rotatable at least between a first and a second rotational position, but may alternatively or additionally be designed to be axially displaceable, as shown by way of example in FIGS. 14 to 21.
- the first rotational position preferably corresponds to a first gear stage and the second rotational position of the shift ring 140 to a second gear stage.
- the transmission unit 134 is preferably designed to transmit an actuation of the actuatable shift ring 140 to a preferably axially displaceable shift element (350 in FIG. 3) of the transmission 130.
- the transmission unit 134 has at least one axially displaceable shift rod 133 and a shift bracket 132, wherein the shift rod 133, the axially displaceable switching element (350 in Fig. 3) of the transmission 130 via the switch bracket 132 with the operable switching ring 140 of the gear change unit 210 couples ,
- the switch bracket 132 is preferably axially movable and / or pivotally mounted on the shift rod 133 and the axially displaceable switching element (350 in Fig. 3) and biases this preferably in a predetermined switching position.
- the Gangumschalteica 210 and the switching element (350 in Fig. 3) switches only in an operation of the shiftable transmission 130 the Gear stage, so that a gear change is possible only during operation of the switchable transmission 130.
- the switching ring 140 on a Betjanskulis- senbahn 142 in which the shift rod 133 engages at least in sections.
- the gear shift unit 210 with at least one rotatable shift ring 140 and a transfer unit 134 with a pivotable shift bracket 132 will be described below.
- the switching ring 140 and / or the switch bracket 132, as described above, also be axially displaceable.
- the switching ring 140 is associated with a position detection unit 160, which is designed to detect a respective current switching position of the switching ring 140.
- the switching ring 140 is preferably rotatable at least between a first and a second rotational position, wherein the first rotational position of a first gear stage and the second rotational position corresponds to a second gear stage.
- the position detection unit 160 is preferably axially displaceable at least between a first and a second detection position, wherein the first detection position for detecting the first rotational position and the second detection position for detecting the second rotational position is formed.
- the switching ring 140 preferably has a link path 144 connected to the position detection unit 160, which is designed for the axial displacement of the position detection unit 160 upon actuation of the actuatable switching ring 140.
- the position detection unit 160 preferably has a guide element 164 and a display element 162, wherein the guide element 164 engages the slide track 144 at least in sections.
- the display element 162 is preferably designed to display a respectively detected switching position of the actuatable switching ring 140.
- the position detection unit 160 is assigned a sensor for detecting a respectively current switching or rotational position of the actuatable switching ring 140.
- the sensor is designed as a linear sensor 155, and according to a further embodiment, the sensor 155 is designed as an angle sensor (710 in FIG. 7).
- the linear sensor 155 is preferably arranged on a circuit board 151 of an electronics 150 assigned to the position detection unit 160 and designed to detect a respectively current detection position of the position detection unit 160.
- the linear sensor 155 preferably detects a linear movement of the display element 162 of the position detection unit 160 and thus indirectly the respective current switching or rotational position of the operable switching ring 140, since a corresponding linear position of the display element 162 each ring an associated switching or rotational position of the operable Weg- 140 corresponds.
- at least one, illustratively, three sensor elements 152, 153, 154 are assigned to the linear sensor 155.
- the angle sensor (710 in FIG. 7) can be used to detect a respective angular position of the actuatable switching ring 140, which corresponds directly to a respective switching or rotational position of the actuatable switching ring 140.
- the gear shift unit 210 is associated with an actuator 180 having a servomotor 182.
- the servomotor 182 is associated with a servomotor 184.
- the servomotor 182 is preferably designed to actuate the actuatable shift ring 140 for gear shifting between the at least two different gear stages upon activation.
- the positioning motor 180 can preferably be activated by an actuation of the at least one operating element 16, 17 or by the user guidance unit 15.
- the communication interface 1050 is adapted to transmit a control signal for activating the servomotor 182 to the servomotor 182.
- the control signal can be generated in response to an actuation of the at least one operating element 1 16, 17.
- the generation of the control signal can preferably be triggered by the user guidance unit 15, ie for example by a mobile computer in the form of a smartphone or a tablet computer, so that a provision of the operating elements 16, 17 can also be dispensed with.
- the generation can also be triggered directly by the communication interface 1050, eg, in the case of dependence on predetermined operating parameters, so that in turn can be dispensed with a provision of the controls 1 16, 1 17.
- the adjusting unit 180 For actuating the operable switching ring 140 upon activation of the adjusting motor 182, the adjusting unit 180 preferably has an output shaft 186, which preferably drives a drive element 146 of the switching ring 140.
- the output shaft 186 and the drive member 146 are formed as gears, which mesh with each other.
- a corresponding toothing of the output shaft 186 and the drive element 146 is preferably straight teeth formed in order to achieve a rotation of the switching ring 140 by a rotation of the output shaft 186.
- the servo motor 182 is controllable via the electronics 150 of the position detection unit 160, wherein preferably after a power interruption e.g. a battery change over the position detection unit 160 a current switching ring position can be determined.
- FIG. 2 illustrates the manual switch 105 of the handheld power tool 100, which is designed to activate and deactivate the drive motor 120.
- the manual switch 105 is an on / off switch
- the manual switch 105 is preferably designed as a pusher, but can also be designed as a button.
- FIG. 3 shows the shiftable transmission 130 of FIGS. 1 and 2, which is preferably designed as a planetary gear, for driving an output shaft 310 of the portable power tool 100 of FIG. 1.
- the planetary gear 130 preferably includes at least first and second, illustratively, first, second, and third planetary stages 372, 374, 376, illustratively enabling operation of the planetary gear 130 in first and second gear ratios.
- each gear stage is preferably associated with a corresponding operating mode, e.g. one
- Screw mode, drilling mode and / or a percussion mode / impact screw mode may be provided for performing a torque limited torque limiting operation in a first speed stage, while providing a drilling operation and / or a beating operation with a beating function for execution in a second speed stage.
- the planetary gear 130 has an axially displaceable switching element 350, which is preferably designed as a switching ring gear and is referred to below as the "switching ring gear 350."
- the switching ring gear 350 is preferably displaceable between at least two axial positions, one axial position being associated with one gear step
- the switching ring gear 350 is designed as a ring gear of the second planetary gear stage, but alternatively the switching ring gear 350 can also be designed as an additional switching ring gear of the planetary gear 130.
- FIG. 3 further illustrates the connection of the transmission unit 134 to the planetary gear 130, wherein the transmission unit 134 is preferably designed to transmit an actuation of the actuatable switching ring 140 to the axially displaceable switching ring gear 350 of the planetary gear 130.
- the shift rod 133 associated with the transfer unit 134 preferably connects the shift ring gear 350 of the planetary gear 130 via the shift bracket 132 with the operable shift ring 140 of the gear shift unit 210.
- the shift bracket 132 is pivotally mounted on the shift rail 133 and the axially displaceable shift ring gear 350.
- a gear shift is preferably also possible with a tooth-on-tooth arrangement between the switching ring gear 350 and the planetary gear 130.
- FIG. 3 illustrates an optional percussion mechanism 320 designed as a detent impact mechanism, which can preferably be activated in percussion drilling mode.
- impact mechanism 320 may also be used as any other striking mechanism, e.g. be designed as a wobble impact.
- a blocking element 330 is provided which is acted upon by a deactivation element 342 of the switching ring 140 at the end of the actuatable switching ring 140 facing the tool receptacle 190 in the impact mode.
- the switching ring 140 is preferably on the housing 1 10, or on the gear housing 136, on.
- the shift rod 133 illustratively has a first and second axial end 431, 433, wherein, for example, the first end 431 facing the drive motor 120 and the second end 433 facing the torque limiting element 170.
- the shift rod 133 is in a - in Fig. 4 illustratively upper -
- the shift rod 133 preferably engages at least in sections in the Betuschistskulissenbahn 142 of the actuatable shift ring 140 with its at the second end 433 arranged guide member (921 in Fig. 9).
- the shift rod 133 has a preferably groove-like receptacle 434 for receiving the handlebar 132 on.
- the switch bracket 132 has a receiving region 423 for placement in the groove-like receptacle 434 of the shift rod 133.
- the receiving region 423 is preferably connected to an end region 421 via a connection region 422.
- the end region 421 preferably engages through the gear housing 136 via a recess 414 of the gear housing 136 for arrangement on the switching ring gear 350.
- the switch bracket 132 is guided in the region of the connecting region 422 via at least one, illustratively a first and second guide web 41 1, 412 of the gear housing 136.
- the switch bracket 132 is at least approximately U-shaped, wherein in Fig. 4, only one side of the switch bracket 132 is shown, and wherein the opposite side is preferably formed analogously to the side shown in Fig. 4.
- the switch bracket 132 is preferably designed as a wire bracket.
- FIG. 5 shows the position detection unit 160 of FIG. 2 with the display element 162 and the guide element 164, wherein the display element 162 is preferably arranged on an upper side 503 of the position detection unit 160 and the guide element 164 is arranged on its underside 504.
- the upper side 503 illustratively faces an underside 502 of the circuit board 151, and the sensor 155, which is preferably designed as a linear sensor, is arranged on an upper side 501 of the circuit board 151.
- the board 151 preferably has a a recess 532, through which the display element 162 of the position detection unit 160 projects to indicate a respectively detected switching position of the actuatable switching ring 140.
- FIG. 5 illustrates the at least partial arrangement of the guide element 164 in the slide track 144 of the actuatable shift ring 140.
- the shift ring 140 is preferably facing the underside 504 of the position detection unit 160.
- the actuatable shift ring 140 has a preferably cylindrical main body 514 with a first and a second axial end 521, 522 and an outer and inner circumference 515, 516.
- the base body 514 at least in sections an axial extension portion 512, which is preferably formed at the first end 521 of the switching ring 140, but may also be formed at the second end 522.
- the widening region 512 is preferably curved and, according to a first embodiment, provided with the slide track 144 and the actuating slide track 142.
- the slide track 144 is illustratively arranged closer to the first end 521, as the Betrelinskulissenbahn 142.
- the Betrelinskulissenbahn 142 could be arranged closer to the first end 521 as the slide track 144th
- the main body 514 preferably has on its outer circumference 515 the drive element 146 for driving the switching ring 140 via the setting unit 180 of FIG. 2.
- the drive element 146 is formed as a circular or circular segment-shaped gear or pinion element.
- at least one and illustratively three cam members 524, 526, 528 for deactivating the percussion mechanism 320 and / or for limiting the torque are preferably arranged at the axial end 522 of the main body 514, which form the deactivation elements 342 of FIG. 3 by way of example.
- Fig. 6 shows the switching ring 140 of Fig. 5, which is formed according to a first embodiment and preferably the three cam members 524, 526, 528 has.
- each of the cam members 524, 526, 528 preferably at least one axial extension 61 1, 612, wherein a first extension 61 1 is formed in the direction of the first end 521 of the switching ring 140 and a second extension 612 in the direction of the second end 522 of Wegrings 140 is formed.
- FIG. 7 shows the gear shift unit 210 of FIG. 2 with an actuatable shift ring 740 according to a second embodiment without the first gear housing part 137.
- the actuatable shift ring 740 is analogous to the shift ring 140 of FIGS. 1 to 6, but the extension area has 512 only the Betreliistskulissenbahn 142 on.
- the position detection unit 160 for detecting a respectively current switching position of the operable switching ring 740 is preferably assigned the sensor 155 designed as an angle sensor 710.
- the angle sensor 710 is arranged in the region of the setting unit 180, in particular on the output element 186. However, the angle sensor 710 could also be arranged in the region of the switching ring 740.
- FIG. 8 shows the actuatable switching ring 740 of FIG. 7 with its first and second ends 821, 822, wherein the extension region 512 is arranged analogously to the actuatable switching ring 140 of FIGS. 1 to 6 at the first end 821 of the switching ring 740.
- FIG. 8 illustrates the widening area 512 with the actuating track path 142.
- FIG. 9 shows the gear shift unit 210 of FIG. 2 with the operable shift ring 740 of FIGS. 7 and 8, and illustrates a guide element 921 formed on the second end 433 of the shift rod 133, which can be arranged at least in sections in the actuation track path 142 for the gear shift is.
- the widening region 512 of the switching ring 740 has a first and a second stop edge 931, 932.
- the first gear housing part 137 has at least one, illustratively two stop elements 91 1, 912.
- the second stop edge 932 preferably lies in an illustrated rotational position of the switching ring 740
- FIG. 10 shows the hand tool 100 of FIG. 1 having the gear shift unit 210 of FIG. 2, which according to one embodiment comprises the actuatable shift ring 140 and the actuator 180 of FIG. 7 as well as the communication interface 1050 of FIG.
- the hand tool machine 100 is provided with the user guidance unit 15 of FIG. 1, which here preferably has an operating unit 1020 for manually setting a speed step or an operating mode.
- the operating unit 1020 is preferably provided with at least one illustratively three operating elements 1021, 1022, 1023 for setting a gear stage or an operating mode.
- the operating element 1021 is provided for setting the screwing mode
- the operating mode setting element 1022 for setting the drilling mode
- the operating element 1023 for setting the striking mode
- the operating elements 1021-103 having, for example, symbols corresponding to the operating modes.
- the controls 1021 -1023 are on one
- the operating unit 1020 is preferably at least partially integrated into the hand tool 100.
- the user guidance unit 1 15 as described above at least partially be formed as an external, separate component 1040.
- the external component 1040 preferably has a mobile computer, in particular in the manner of a smartphone and / or tablet computer.
- a mobile computer in particular in the manner of a smartphone and / or tablet computer.
- other so-called “smart devices” such as a watch, glasses, etc. can be used as a mobile computer, whereby the provision of the operating unit may also be as described above
- the hand tool 100 preferably has a display.
- the user guidance unit 1 15 preferably forms a tool system 1000 with the handheld power tool 100 in this case.
- the mobile computer 1040 preferably has a display 1010, which is preferably designed in the manner of a touch screen or for gesture control.
- the display 1010 preferably has at least one operating mode of the handheld power tool 100 for inputting at least one, illustratively three operating elements
- the control signal described above is preferably configured to display on the display 1010 an indication for initiating a switching operation for switching the transmission 130 between the to produce different gear ratios.
- instructions are preferably displayed via the display 1010, e.g. an instruction which operating mode is to be set for a given operation, which a user of the power tool 100 then subsequently e. via the operating unit 1020 can set.
- the operating elements 1021 - 1023 on the handheld power tool 100 can be provided with lighting means (1231, 1232, 1233 in FIG. 12) and the control signal is in this case designed to provide a respective lighting means (1231,
- the mobile computer 1040 may also be at least partially integrated into the handheld power tool 100, and an adjustment of the operating mode is preferably in each case automatically, preferably via the setting unit
- FIG. 1 1 shows the operating unit 1020 of FIG. 10, which according to one embodiment has an adjusting element 1 120 for manually setting the respective operating mode.
- the adjusting element 1 120 is preferably formed integrally with the actuatable switching ring 140 of FIG. 2 to FIG. 6 or the actuatable switching ring 740 of FIG. 7 to FIG. 10 and preferably projects through a recess 1 105 of the operating unit 1020.
- the operating elements 1021-1023 have symbols corresponding to the respective operating modes.
- FIG. 12 shows the operating unit 1020 of FIG.
- the printed circuit board 1030 preferably has at least one and illustratively three switching elements 1235, 1236, 1237.
- the printed circuit board 1030 preferably has at least one and illustratively three switching elements 1235, 1236, 1237.
- To display a respectively set gear ratio preferably three display elements 1231, 1232, 1233 are provided. These are preferably formed as lighting elements.
- a switching element 1235-1237 with a lighting element 1231-1233 is associated with an operating element 1021-1023.
- the switching element 1235 and the lighting element 1231 are associated with the operating element 1021, the switching element 1236 and the lighting element 1232 are assigned to the operating element 1022, and the switching element 1237 and the lighting element 1233 are assigned to the operating element 1023.
- the illumination means 1231, 1232, 1233 can be activated between the different gear stages at least to indicate the request to initiate a switching process for switching the transmission 130 of FIG. 2.
- the switching elements 1235-1237 are formed as switches or buttons and / or the lighting elements 1231-1233 are formed in the manner of LEDs.
- the operating unit 1020 may also be embodied in the manner of a display, preferably with a touchscreen, and / or a mobile computer, with a respective symbol that can be actuated in each case lighting up and / or flashing on the display.
- the operating unit 1020 is preferably connected to the setting unit 180 or the servomotor 182 and the servomotor gear 184 for setting an operating mode selected by a user 1230 or for rotating the actuatable switching ring 140 of FIGS. 2 to 6, which in turn preferably follows the position detection unit 160 along of a double arrow 1201 can move axially.
- FIG. 13 shows the tool system 1000 of FIG. 10 with the handheld power tool 100 and the mobile computer 1040 from FIG. 10.
- FIG. 13 illustrates the handheld power tool 100 with its drive unit 220, the drive motor 120, the gearbox 130, the striking mechanism 320 and the torque limiting element 170 has.
- the electronics 150 controls at least one actuator 1351, 1352, 1353.
- the actuator 1351 is designed as an example for the speed change of the transmission 130, the actuator 1352 for activating / deactivating the Schlagtechniks 320 and the actuator 1353 for adjusting a torque by means of the torque limiting element 170.
- the electronics 150 upon activation of an actuator 1351-1353, the electronics 150 will pass an activation signal to an associated lighting element 1231-1233. Alternatively or additionally, the activation signal may also be formed as a signal tone.
- the mobile computer 1040 for communication with the communication interface 1050 of the handheld power tool 100 has an interactive program 1342, 1344, in particular a smartphone app.
- a first program 1342 is preferably designed for the setting of applications, e.g. to screw a screw into softwood.
- the program 1342 preferably determines operating parameters for a particular application, e.g. a speed, a direction of rotation, a torque, a gear and / or a Schlagmaschineers horris, and passes them to the communication interface 1050 of the power tool 100 on.
- the communication interface 1050 is preferably designed to transmit a control signal to the actuators 1351, 1352, 1353 of the handheld power tool 100, wherein at least one actuator 1351 is configured to switch the transmission 130 between the different gear ratios upon activation by the communication interface 1050.
- the communication interface 1050 preferably transmits the control signal to the electronics 150, which activates and / or controls the respective actuators 1351 - 1353.
- a second program 1344 is provided which is adapted to set at least one particular operating parameter, e.g. a rotational speed, a direction of rotation, a torque, a gear ratio and / or a striking operation requirement is formed.
- a user of the power tool 100 enters desired operating parameters directly via the program 1344. These are then transmitted to the communication interface 1050 of the handheld power tool 100, wherein the communication interface 1050 forwards a corresponding control signal as described above.
- the hand tool 100 for manual adjustment of a gear and / or an operating mode or for manual adjustment of operating parameters, at least one signal generator 131 1, 1312, 1313.
- the hand tool 100 for manual adjustment of a gear and / or an operating mode or for manual adjustment of operating parameters, at least one signal generator 131 1, 1312, 1313.
- the hand tool 100 for manual adjustment of a gear and / or an operating mode or for manual adjustment of operating parameters, at least one signal generator 131 1, 1312, 1313.
- three signalers 131 1 are illustrated in FIG. 13, three signalers 131 1,
- a first signal generator 131 1 is designed as an example for gear change, a second signal generator 1312 for activating and / or deactivating the impact mechanism 320 and a third signal generator 1313 for torque adjustment.
- the respective signal generator 131 1 -1313 is preferably designed to send a control signal to the electronics 150 in an application-specific or input-dependent manner so that the electronics 150 can activate and / or control the respective actuators 1351 - 1353.
- the signal generator 131 1 -1313 are designed as electrical signal generator, but can also be used as any other signal generator, e.g. be designed as a mechanically movable lever arm.
- the user guidance unit 15 may be associated with a display and / or a mobile computer 1040 which, as described above, displays switch instructions for application specific switching of the transmission 130.
- the switching instructions may be visualized on the display and / or the mobile computer 1040 as step-by-step instructions.
- the at least one operating element 1 16, 1 17 for initiating a switching operation for switching the transmission 130 between the different gear stages preferably a sensor 1370, which is adapted to the communication interface 1050 and / or the mobile computer 1040 upon actuation of at least a control element 1 16, 1 17 to transmit an actuation signal, so that a respective next step of the switching instruction can be displayed.
- the senor 1370 may also be embodied as an internal and / or external sensor for monitoring and / or optimizing the handheld power tool 100 and preferably as a temperature sensor, acceleration sensor, position sensor, etc.
- a software may be provided which is designed to check the settings of the electronics 150 or of the handheld power tool 100 and, if necessary, to adapt, for example, to output a warning signal in the case of the drive motor 120 of FIG. 1 that has become hot due to excessive torque applied. or make an automatic gear shift.
- an adapter interface 1380 is provided for connection to at least one adapter 1385.
- the adapter interface 1380 may be designed in the manner of a mechanical interface, an electrical interface and / or a data interface, the adapter 1385 for transmitting information and / or control signals, such as a torque, a rotational speed, a voltage, a current and / or further data to the hand tool 100 is formed.
- the adapter 1385 preferably has a transmission unit in the case of an adapter interface 1380 designed as a data interface.
- the adapter 1385 may be designed as a distance meter, for example, and may conduct determined parameters to the handheld power tool 100 via the adapter interface 1380.
- the adapter can be used with and / or without drive unit 220.
- the adapter 1385 can be activated via the mobile computer 1040, wherein this or the display can visualize an activation of the adapter 1385.
- the electronics 150 preferably controls the drive motor 120 and / or the working field illumination 104.
- the drive motor 120 is preferably controlled as a function of a direction of rotation signal transmitted by the direction-of-rotation switch 106.
- the manual switch 105 has a locking device 1360, which is preferably designed as a mechanical and / or electrical locking.
- the on / off switch 107 and / or the electronics 150 are supplied with power from the battery pack 102.
- FIG. 14 shows the speed changeover unit 210 of FIG. 2, which here can be operated manually via an alternative operating element 1460 and subsequently as
- the operating element 1460 is preferably designed in the shape of a circle segment and has a status display 1464, which preferably has symbols for corresponding operating modes, on its upper side 1461.
- the operating element 1460 preferably has its first gear housing part 137 of FIG facing the end
- Carrier element 1462 which is arranged in a receptacle 1442 of one of the Gangumschalteech 1410 associated with actuatable shift ring 1440.
- the actuatable shift ring 1440 preferably has an extension portion 1444 with an actuating track 1446 facing the output shaft 310 of FIG. 3.
- the switching ring 1440 has two diametrically opposite extension regions 1444.
- the operable switching ring 1440 is formed axially displaceable and rotatable, wherein the switching ring 1440 is preferably displaced axially at the same time during rotation.
- the switching ring 1440 may be only axially displaceable via the operating element 1460.
- a shift rod 1450 is provided, which preferably has two diametrically opposed guide elements 1452, which are arranged in the Betreli whyskulissenbahnen 1446. In this case, the shift rod 1450 is connected to the transmission 130 of Fig. 2.
- Fig. 15 shows the Gangumschalteech 1410 of Fig. 14 with a fixing element 1510 for at least approximately fixing the operable Wegrings 1440 on the first gear housing part 137.
- the fixing element 1510 is formed in the manner of a disc and preferably fixes the switching ring 1440 via a clamping and For the axial displacement of the operable switching ring 1440 during a rotation of the actuatable switching ring 1440, the fixing element 1510, the switching ring 1440 and / or the gear housing 136 at least one wedge-like element 1512, 1514, 1516 on.
- the fixing element 1510 has on its side facing the switching ring 1440, preferably along its outer circumference, at least one wedge-like element 1512, the switching ring 1440 illustratively has at least one wedge-like element 1514 on its inner circumference and the gear housing 136 has on its outer circumference illustrative at least one wedge-like element 1516.
- the wedge-like elements 1512-1516 have a triangular contour, but may have any other contour, e.g. an oval contour.
- FIG. 16 shows the gear shift unit 1410 of FIG. 14 and FIG. 15 without the first gear housing part 137 of FIG. 2 to illustrate the shift rod 1450.
- This illustratively has an arcuate base body 1620, at whose two ends a respective guide element 1452 is formed is.
- FIG. 16 illustrates the transmission 130 of FIG. 2 with an alternative Druckhohlrad 1610.
- This switching ring gear 1610 preferably has a cylindrical base body 1612 with a groove-like recess 1640 for the arrangement of the shift rod 1450 on.
- FIG. 17 shows the gear shift unit 1410 of FIG. 16 with the shift ring gear 1610 and the shift rail 1450.
- FIG. 17 illustrates the arrangement of the shift rail 1450 in the recess 1640 of the shift ring gear 1610.
- FIG. 18 shows an alternative speed changeover unit 1810 with the operable shift ring 1440 of FIGS. 14 through 16 in an exemplary first speed stage or operating mode, respectively.
- the switching ring 1440 preferably has a drive element 1820 on its outer circumference analogous to the switching ring 140 of FIGS. 2 and 740 of FIG. 7.
- This drive element 1820 is preferably rotated via the setting unit 180 or the output element 186 for gear change and in this case preferably simultaneously displaced axially in the direction of a double arrow 1802.
- the Heidelberghohlrad 1610 is axially displaced analogously to the switching ring 1440 of FIG. 14.
- the speed changeover unit 1810 for position detection of the switching ring 1440 is associated with the angle sensor 710 of FIG. 7 arranged according to a first arrangement variant on a rear side 1801 of the speed changeover unit 1810 opposite the output shaft 310 or coaxial with the shift ring 1440.
- the angle sensor 710 is designed to measure a rotation of the switching ring 1440 directly.
- the linear sensor 155 of FIG. 2 may find application. This is preferably designed to directly measure an axial displacement of the switching ring 1440, which results from a rotation of the switching ring 1440.
- FIG. 19 shows the speed changeover unit 1810 of FIG. 18 in an exemplary second speed stage or operating mode.
- the switching ring 1440 is axially displaced in the direction of the second gear housing part 138 of FIG. 2.
- FIG. 20 shows the gear changeover unit 1810 of FIGS. 18 and 19, in the exemplary first gear stage or the first operating mode, wherein the angle sensor 710 according to a second arrangement variant is for example in the region of the outer circumference of the shift ring 1440 or radially to the shift ring 1440 - is in order.
- the angle sensor 710 is arranged diametrically opposite the setting unit 180.
- FIG. 21 shows the speed changeover unit 1810 of FIG. 20 in the exemplary second speed stage and the second operating mode, respectively.
- the switching ring 1440 is axially displaced in the direction of the second gear housing part 138.
- FIG. 22 shows a further alternative gear shift unit 2210 with an operable shift ring 2240.
- the shift ring 2240 preferably has on its outer circumference, analogous to the shift rings 140, 740 and / or 1440 described above, a drive element 2220 which is in turn driven via the setting unit 180 or the output element 186 of Fig. 2 is rotatable to the gear change.
- the switching ring 2240 preferably has at least one, preferably two diametrically opposite actuating slide tracks 2246 on its outer circumference.
- a further alternative shift rod 2250 is provided which has two diametrically opposed guide members 2252 disposed in the actuation track tracks 2246, wherein the
- Shift rod 2250 is connected to the transmission 130 of Fig. 2.
- the operable switching ring 2240 on its outer periphery, illustratively between the two Betrelinskulissenbahnen 2246, a connectable to the position detection unit 160 slide track 2248. This is formed for the axial displacement of the position detection unit 160 upon actuation of the actuatable switching ring 2240.
- FIG. 23 shows the gear shift unit 2210 of FIG. 22, wherein the drive member 2220 is connected to the actuator unit 180.
- the operable switching ring 2240 is arranged in its first rotational position, which is assigned to the first gear stage or a first operating mode.
- FIG. 24 shows the gear shift unit 2210 of FIG. 23 in the exemplary second gear stage and the second operation mode, respectively.
- the operable switching ring 2240 is arranged twisted in comparison to FIG.
- FIG. 25 shows the gear shift unit 2210 of FIGS. 22 to 24 without the operable shift ring 2240 and illustrates the illustrative pin-like guide element 2252.
- the guide element 2252 is connected to the shift rod 2250 via a connecting element 2512.
- the guide element 2252 and the connecting element 2512 are arranged on an illustratively plate-like base body 2514.
- the connecting element 2512 at least partially encased one end of the switching rod 2250 associated arcuate base body (2610 in Fig. 26).
- the guide member 2252 and the connecting member 2512 are spaced apart in the axial direction of the transmission 130 of Fig. 2, however, the guide member 2252 may be connected in any other direction with the connecting member 2512, e.g. be arranged in the radial direction on the connecting element 2512.
- the plate-like base body 2514, the guide element 2252 and the connecting element 2512 form a guide unit 2510, which is preferably arranged in a receptacle 2520 of the gear housing 136, in particular of the first gear housing part 137 of FIG. 2.
- the shift rod 2250 has two guide units 2510, which are preferably arranged diametrically opposite one another.
- FIG. 26 shows the gear shift unit 2210 of FIG. 25 without the first gear housing part 137 of FIG. 2, with the shift ring gear 1610 of FIG. 16 and FIG. 17 with the recess 1640 for mounting the shift rail 2250.
- the shift rail 2250 is arcuate Base 2610 having first and second ends 261 1, 2612.
- the arcuate base body 2610 is formed in the manner of a wire bracket, but could also have a rectangular cross section analogous to FIGS. 16 and 17 or, alternatively, could also be designed as a wire piece. Preference is given to the two
- FIG. 26 illustrates the arrangement of the connecting element 2512 of the guide unit 2510 at one end of the arcuate main body 2610, wherein the respective end 261 1, 2612 is encased at least in sections, preferably completely, by the connecting element 2512.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Power Tools In General (AREA)
- Percussive Tools And Related Accessories (AREA)
- Mechanical Control Devices (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015226088.7A DE102015226088A1 (de) | 2015-12-18 | 2015-12-18 | Handwerkzeugmaschine mit einer Gangumschalteeinheit |
PCT/EP2016/080132 WO2017102516A1 (de) | 2015-12-18 | 2016-12-07 | Handwerkzeugmaschine mit einer gangumschalteeinheit |
Publications (2)
Publication Number | Publication Date |
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EP3389944A1 true EP3389944A1 (de) | 2018-10-24 |
EP3389944B1 EP3389944B1 (de) | 2020-04-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16809004.1A Active EP3389944B1 (de) | 2015-12-18 | 2016-12-07 | Handwerkzeugmaschine mit einer gangumschalteeinheit |
Country Status (5)
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US (1) | US10994403B2 (de) |
EP (1) | EP3389944B1 (de) |
CN (1) | CN108472801B (de) |
DE (1) | DE102015226088A1 (de) |
WO (1) | WO2017102516A1 (de) |
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DE102018111792A1 (de) * | 2017-08-29 | 2019-02-28 | Festool Gmbh | Hand-Werkzeugmaschine |
DE102017222006A1 (de) * | 2017-12-06 | 2019-06-06 | Robert Bosch Gmbh | Handwerkzeugmaschine mit einer Moduseinstelleinrichtung |
DE102018208048A1 (de) | 2018-05-23 | 2019-11-28 | Robert Bosch Gmbh | Handwerkzeugmaschine |
DE102018214092A1 (de) * | 2018-08-21 | 2020-02-27 | Robert Bosch Gmbh | Umschaltvorrichtung für einen Bohrhammer und Bohrhammer mit einer Umschaltvorrichtung |
DE102019125171B4 (de) * | 2019-09-18 | 2023-12-21 | Ergobionik Gmbh | Handwerkzeug |
US11602833B2 (en) * | 2020-06-02 | 2023-03-14 | Snap-On Incorporated | Direction selector mechanism for a power tool |
DE102020210824A1 (de) * | 2020-08-27 | 2022-03-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine mit einem schaltbaren Getriebe |
DE102020212708A1 (de) | 2020-10-08 | 2022-04-14 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine |
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DE102006029363A1 (de) * | 2006-06-27 | 2008-01-03 | Robert Bosch Gmbh | Elektrohandwerkzeug |
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DE102011007648A1 (de) | 2011-04-19 | 2012-10-25 | Robert Bosch Gmbh | Handwerkzeugmaschine |
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DE102014209009A1 (de) * | 2014-01-27 | 2015-07-30 | Robert Bosch Gmbh | Werkzeugmaschinenvorrichtung |
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-
2015
- 2015-12-18 DE DE102015226088.7A patent/DE102015226088A1/de not_active Withdrawn
-
2016
- 2016-12-07 EP EP16809004.1A patent/EP3389944B1/de active Active
- 2016-12-07 CN CN201680074015.XA patent/CN108472801B/zh active Active
- 2016-12-07 WO PCT/EP2016/080132 patent/WO2017102516A1/de unknown
- 2016-12-07 US US16/062,715 patent/US10994403B2/en active Active
Also Published As
Publication number | Publication date |
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US20180370011A1 (en) | 2018-12-27 |
WO2017102516A1 (de) | 2017-06-22 |
US10994403B2 (en) | 2021-05-04 |
CN108472801B (zh) | 2022-06-21 |
CN108472801A (zh) | 2018-08-31 |
EP3389944B1 (de) | 2020-04-22 |
DE102015226088A1 (de) | 2017-06-22 |
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