Powered ratchet

Abstract

A driven ratchet (1) comprising a handle housing (4) which has a battery pack receptacle (5), a drive housing (3) comprising a drive unit (30) with a drive shaft (32) which defines a longitudinal axis (100) of the ratchet (1) and which is connected to the handle housing (4) at a first end (401) in an axial extension direction of the longitudinal axis (100), wherein the drive unit (30) is arranged at least partially in the drive housing (3) and / or the handle housing (4), an actuating device () comprising a pawl () for activating the ratchet (1), characterized in that the handle housing (4) further comprises a waist (60b) which forms a first grip area (60a) which accommodates a thumb (601) and at least one index finger (602) of a user and the waist (60b) is arranged in such a way as to the pawl (83),that the ratchet (1) can be activated by means of a pressure movement of at least the index finger (602) over a longitudinal extension of the handle area (60a).

Description

[0001] The present invention relates to a driven ratchet. State of the art

[0002] Documents EP3589452A1 and EP4257290A1 describe electrically driven ratchets with a handle housing that is essentially cylindrical. However, this housing design has proven disadvantageous in use, particularly when storing the ratchet or changing tools. Therefore, there is a need for improved and more ergonomic operation of the ratchet. Ratchets known from the prior art can still be improved with regard to their ergonomics and handling in certain operating situations. The aim is therefore to enable improved handling of the ratchet. Disclosure of the invention

[0003] In contrast, the driven ratchet according to the invention (hereinafter referred to as "ratchet") with the features of claim 1 has the advantage that a handle housing has a waist which forms a first grip area (hereinafter referred to as "grip area") which accommodates a thumb and at least one index finger of a user and the waist is arranged to form a pawl such that the ratchet can be activated by means of a pressure movement of at least the index finger over a longitudinal extension of the grip area.

[0004] A ratchet is a mechanical device used to tighten or loosen screws or nuts. Unlike conventional ratchets, a powered ratchet has features that improve its functionality and efficiency. Preferably, the ratchet is electrically driven. In alternative embodiments, the ratchet can also be pneumatically driven. This means that the ratchet is operated either by compressed air or electrical energy to generate the torque required for tightening or loosening, for example, screws. In one embodiment, the ratchet particularly includes torque monitoring and may have an automatic shut-off function, for example, to prevent overloading or damage to fasteners.

[0005] The ratchet comprises the handle housing and a drive housing. The drive housing is connected to the handle housing at a first end in an axial direction along its longitudinal axis.

[0006] The drive housing includes a drive unit with a drive shaft, the drive shaft defining the longitudinal axis of the ratchet. The drive unit is at least partially located within the drive housing and / or the handle housing.

[0007] The handle housing, along with the drive housing, forms part of the ratchet housing and serves primarily to form the ratchet handle. Specifically, the handle housing is designed so that it can be gripped by the user with one hand. The handle housing has a predominantly cylindrical shape. This design allows the user to grip and operate the ratchet securely, ensuring ergonomic and comfortable handling.

[0008] Furthermore, the handle housing is designed in such a way that it can accommodate electronic components, preferably at least partially. This can include, for example, a circuit board or other electronic components required for controlling and operating the ratchet.

[0009] In particular, the handle housing has an operating side. An actuating device is arranged on the operating side. The actuating device includes a pawl for activating the ratchet. In particular, the actuating device may include all components necessary for activating the ratchet, such as a switch. The actuating device enables the user to activate and control the ratchet. The operating side is designed in such a way as to allow intuitive and user-friendly handling, with the actuating device being easily accessible and simple to operate.

[0010] Furthermore, the handle housing and the battery pack mounting interface can be designed as a single piece.

[0011] The drive unit is at least partially arranged in the drive housing and / or the handle housing. The drive shaft can be arranged coaxially with a motor shaft of the drive unit, in particular an electric motor. Alternatively, the drive shaft can be formed integrally with the motor shaft. The drive shaft is, in particular, indirectly connected to an eccentric shaft of an eccentric unit, which in particular drives a ratchet head. The drive shaft is, in particular, arranged coaxially with the eccentric shaft. The drive shaft is supported, and preferably mounted, at least and in particular in the drive housing.

[0012] The drive shaft defines, in particular, the longitudinal axis of the ratchet. Specifically, the ratchet extends along this longitudinal axis. The drive housing is detachably or permanently connected to the handle housing at a first end in the axial direction of the longitudinal axis. In particular, the drive housing is at least partially enclosed by the handle housing, for example, by being inserted, snapped, and / or glued into it, but preferably by being screwed in place. Specifically, the drive housing is screwed to the handle housing by a plurality of fasteners, preferably eight screws. The fasteners are arranged, in particular, radially to the longitudinal axis; preferably, the fasteners are oriented parallel to the longitudinal axis in a radial direction.

[0013] The tapered section is a narrowed area of ​​the handle housing designed to create a comfortable grip and, in particular, to improve ergonomics. It provides the user with a secure and comfortable hold on the ratchet. Specifically, the tapered section reduces the overall size of the ratchet's grip area. This allows for a more customized fit to the user's hand shape. Preferably, the tapered section is a contoured shape of the handle housing. This contour is designed and positioned to optimize power transmission when operating the ratchet and to reduce potential user fatigue.

[0014] The grip area accommodates at least the user's thumb and index finger. The tapered section is positioned relative to the ratchet such that the ratchet can be activated by a pressure movement of at least the index finger along the length of the grip area. Depending on the task, the user can vary their position along the length of the ratchet and thus along the length of the grip area. In particular, the user can always grasp and activate the ratchet within the tapered section or grip area. The grip area is dimensioned to accommodate at least the user's thumb and index finger. The tapered section and the ratchet are positioned relative to each other such that an axial force exerted on the grip area by the index finger in a natural hand position actuates the ratchet and activates the ratchet.This arrangement allows for ergonomic operation of the ratchet without having to perform unnatural hand or finger movements, especially when a user holds the ratchet in an edge area of ​​the grip area with only the thumb and index finger near the battery pack receptacle.

[0015] Preferably, the ratchet includes a gear unit that, in particular, increases or decreases the torque of the electric motor. The gear unit preferably comprises a planetary gear set. The planetary gear set is designed such that a sun gear is directly or indirectly connected to the drive shaft in a rotationally fixed manner, the sun gear meshing with a plurality of planet gears, in particular three planet gears. A planet carrier accommodates the plurality of planet gears, in particular by means of rotatably mounted bolts. The planet carrier is preferably detachably connected to the eccentric shaft, ideally by a positive locking connection. For example, the eccentric shaft has external teeth in a connection area that engage positively with internal teeth of the planet carrier.

[0016] The gear unit is preferably bolted to the drive housing. The gear unit is preferably connected to the output unit, preferably by bolting. Preferably, the gear unit and output unit are flanged to each other at their ends and connected by means of a common nut. In particular, the gear unit and the output unit have opposing threads. More preferably, the nut has different threads so that when the nut is tightened, both the gear unit and the output unit are pressed together.

[0017] The output unit comprises, in particular, an output housing which accommodates the eccentric device. The eccentric device is configured to convert a rotary movement of the eccentric shaft into an oscillating or reciprocating movement, which is transmitted to the tool holder, in particular by means of a pawl device. Furthermore, the output unit has a direction-of-rotation lever, which is configured, in particular, to act on the pawl device so that the tool holder operates in one direction and can rotate freely in the opposite direction.

[0018] The tool holder is specifically designed to accommodate an insert tool on a tool changing device. For example, socket wrenches can be used to tighten or loosen screws or nuts. Furthermore, extensions, adapters, joints, and / or bit attachments can be accommodated on the tool holder. In particular, the tool changing device has a square drive at one interface, for example, in a size of 1 / 4 inch, 3 / 8 inch, or 1 / 2 inch. Alternatively, the tool changing device can have hexagonal tool holders, Torx tool holders, or the like.

[0019] The handle housing also features a battery pack receptacle. The battery pack receptacle is, in particular, a device or opening designed to accept and secure a battery pack or battery unit, either permanently or detachably, in order to supply the ratchet with electrical power. This interface is specifically designed to ensure secure and reliable attachment of the battery pack while simultaneously guaranteeing easy access for installation and removal. The battery pack receptacle can have various shapes and sizes. For example, it can be designed as a plug connection, clamping device, or bracket to ensure secure attachment of the battery pack. The initial battery capacity of a battery pack can be defined, for example, by a battery pack with three battery cells, such as one with a voltage of 10.8V and a capacity of 3Ah.With the aforementioned battery capacity, the battery cells are arranged primarily and essentially in a triangle.

[0020] Preferably, the tapered shape is designed such that, in a viewing direction opposite to and parallel with a tool's mounting direction, it narrows from a maximum ratchet width to a minimum ratchet width in the handle area. The tapered shape is preferably formed by a reduction in the ratchet width in the handle area that runs perpendicular to a longitudinal direction, with the minimum width occurring particularly and essentially in the middle of the handle area.

[0021] Preferably, the taper has a taper factor that defines the ratio of the maximum ratchet width to the minimum ratchet width in the handle area, and lies in the range of 0.25 to 0.05, preferably 0.2 to 0.1, and particularly preferably 0.15 to 0.18. The maximum width is defined by the handle housing in a viewing direction parallel to and opposite to the mounting direction of the tool. In particular, the maximum width does not include any rubber buffers or other protrusions.

[0022] Preferably, the distance between a first end of the waist and a first end of the pawl, parallel to the mounting direction of the tool, is in a range of 0 mm to 10 mm, preferably 0 mm to 5 mm. This ensures, in particular, optimal accessibility and actuation of the pawl with the index finger.

[0023] Preferably, the ratchet includes a battery pack, which forms at least part of a second grip area and is designed to accommodate, in particular, the middle, ring, and little fingers of a user. In a situation where the user holds the ratchet at the edge of the grip area near the battery pack receptacle, the second grip area serves, in particular, to accommodate the user's middle, ring, and little fingers. The second grip area is, in particular, complementary to the first grip area, which accommodates at least the thumb and index finger. Specifically, the second grip area enables a complete and secure grip around the ratchet. The second grip area is formed by the handle housing and the battery pack.

[0024] Preferably, the ratchet has a printed circuit board, wherein the battery pack and the printed circuit board are arranged relative to each other such that the printed circuit board overlaps the battery pack at least partially. This allows for a particularly compact design. The overlap is at least 10%, preferably 20%, and most preferably at least 35%.

[0025] Preferably, the waist is at least partially convex, concave, or a combination thereof. In particular, the waist is shaped to allow optimal adaptation to the user's hand shape and to support force transmission when operating the ratchet.

[0026] Preferably, the ratchet has a second waist, which is directly connected to the first waist and essentially has the width of the ratchet pawl. This second waist further tapers the grip area from the waist on the operating side down to the width of the ratchet pawl. The second waist, or rather the transition from one waist to the other, is particularly concave and blends seamlessly into the first waist. The concave shape of the second waist forms finger rests that, for example, accommodate the fingertips. This design promotes a secure and stable grip. In cross-section, the combination of the first and second waists resembles the shape of a light bulb, with the second waist forming the base.

[0027] Preferably, a battery pack comprising at least three battery cells is arranged in the battery pack holder such that two of the three battery cells are located on a battery plane that is perpendicular to the mounting direction, and the other two are located on a side facing the operating unit. In other words, two battery cells are arranged in a plane orthogonal to the mounting direction and are located in the grip area on the operating side of the ratchet. This arrangement particularly optimizes the space-saving integration of the battery pack into the grip area.

[0028] Preferably, the grip area is saddle-shaped in a viewing direction perpendicular to the tool's mounting direction, comprising a first surface sloping down to a saddle area starting in the area of ​​the battery pack receptacle, and a second surface sloping down to the saddle area starting in the area of ​​the ventilation openings. The first surface slopes down at an angle of 20°, preferably up to 10°, from the battery pack receptacle to the saddle area. The second surface slopes down at an angle of 30°, preferably up to 25°, from the ventilation openings to the saddle area of ​​the grip.

[0029] In particular, the waistline features a continuous transition to the adjacent areas of the handle housing, thus ensuring an ergonomic and comfortable grip.

[0030] In particular, the surface of the handle housing features a non-slip texture, at least in the area of ​​the tapered section. This improves the user's grip and prevents the hand from slipping. Specifically, this non-slip texture refers to a TPE coating.

[0031] In particular, the handle housing features ventilation openings in the waist area. These ventilation openings improve heat dissipation in the handle area and can increase user comfort.

[0032] In particular, the waistline is symmetrically designed. The further waistline is also symmetrically designed. Symmetrical means that the shape of the handle housing is symmetrical when viewed from a direction parallel to the mounting direction. This can, for example, ensure ergonomics for right- or left-handed users.

[0033] In particular, the ratchet's handle area has various cross-sectional shapes distributed along the first and second handle areas. In the first cross-sectional area, located within the second handle area, the ratchet has a particularly oval cross-sectional shape. This oval shape ensures a more stable hand position and prevents the tool from rotating unintentionally in the hand. In a second cross-sectional area, arranged along the first handle area and especially along the longitudinal extension of the ratchet, the ratchet has a bulb-shaped cross-section. This bulb-shaped cross-section is characterized by its narrowed and further tapered sections. This preferred design can contribute to a more ergonomic fit in the user's hand. Brief description of the characters Fig. Figure 1 shows a preferred embodiment of an electrically driven ratchet in a side view, Fig. Figure 2 shows a sectional view of the preferred embodiment of the electrically driven ratchet according to Fig. 1, Fig. Figure 3 shows a ratchet in a top view, Fig. 4 shows a ratchet in a bottom view, Fig. 5 a schematic sectional view through a handle housing of the ratchet, Fig. 6 A cross-sectional view through a battery pack and the ratchet.

[0034] Identical elements or elements with the same function are marked with the same reference symbols in the figures.

[0035] Fig. Figure 1 shows a preferred embodiment of an electrically driven ratchet 1 (hereinafter referred to as "ratchet") in a side view.

[0036] The ratchet 1 is a mechanical device used to tighten or loosen screws or nuts. Unlike conventional ratchets, the powered ratchet 1 has features that improve its functionality and efficiency. In the Fig. In the preferred embodiment shown in Figure 1, the ratchet 1 is electrically driven by means of a drive unit 30 and comprises a battery pack 6. The drive unit 30 ( Fig. 2) generates a torque required for tightening or loosening screws. In one embodiment, the ratchet 1 includes, in particular, torque monitoring and may have an automatic shut-off function, for example to prevent overloading or damage to fasteners.

[0037] A handle housing 4 of the ratchet 1 serves, in particular, to form a handle for the ratchet 1. Specifically, the handle housing 4 is designed so that it can be gripped by a user with one hand. The handle housing 4 enables the user to grip and operate the ratchet securely, ensuring ergonomic and comfortable handling.

[0038] In particular, the handle housing 4 has an operating side 104 which includes an actuating device 80 in the form of a pawl 83. The pawl 83 enables the user to activate and control the ratchet 1. The operating side 104 is designed in such a way as to allow intuitive and user-friendly operation by means of the large pawl 83, which is easily accessible and simple to operate.

[0039] The handle housing 4 features in particular a lock-off button 43, which is a safety mechanism for an electrical switch 81 (shown in Fig. 2) forms. The electrical switch 81 can be actuated by means of the pawl 83, the pawl 83 being rotatably mounted in a pivot point 84. The pivot point 84 of the pawl 83 can, for example, be a sliding bearing in the handle housing 4. The lock-off button 43 prevents, in particular, the ratchet 1 from being accidentally switched on. Specifically, when the lock-off button 43 is activated, the ratchet 1 cannot be started, even if the electrical switch 81 is pressed. The lock-off button 43 must be manually deactivated before the ratchet 1 can be started.

[0040] The handle housing 4 has an air inlet 41 in the form of an opening through which ambient air can be drawn in and, in particular, can flow out again through an air outlet 31 on a drive housing 3. This serves in particular to cool the ratchet 1, or the drive unit 30 ( Fig. 2) to cool and to ensure air circulation inside the housings 3, 4. In other embodiments, the air inlet 41 can have a different shape, for example, in the form of small grilles or slots that direct air into the housing 4. Furthermore, an air filter (not shown) can be attached to the air inlet 41 to prevent the ingress of dirt, dust, and other contaminants into the housing 4.

[0041] The ratchet 1 has a work light 44, which is arranged at a first end 401 of the ratchet 1, on a side facing the tool holder 21. The work light 44 is, in particular, an integrated light source and is suitable for illuminating the working area of ​​the ratchet 1. In the embodiment shown, the work light 44 is designed as an LED lamp, which is activated when the pawl 83 is actuated. In a further embodiment, the work light 44 can be equipped with a switch to turn the light on and off as needed. A user can, for example, operate the ratchet more safely and precisely, especially in poorly lit environments.

[0042] A battery pack receptacle 5 is arranged in a region of a second end 402 of the ratchet 1. The battery pack receptacle 5 is a device or opening that serves to detachably receive and secure a battery pack 6 in order to supply the ratchet 1 with electrical energy. This battery pack receptacle 5 has a mechanical and electrical interface for connecting the battery pack 6 electrically and mechanically to the ratchet 1.

[0043] A charge level indicator 42 is arranged in the region of the second end 402 of the handle housing 4. Specifically, the charge level indicator 42 is located on one side 105 of the handle. The charge level indicator shows the user the current charge level of the battery pack 6a, 6b. The charge level indicator 42 can be designed in various ways, such as using LEDs, LCD displays, or digital displays. In the illustrated preferred embodiment, the charge level indicator 42 uses multiple LEDs. The charge level indicator 42 can also display the remaining charge level as a bar graph or percentage. Furthermore, different colors can be used for the charge level indicator 42 to indicate the charge level of the battery pack 6. For example, green for a full battery, yellow for a medium charge level, and red for a low charge level.

[0044] In the embodiment shown, the handle housing 4 and the battery pack receptacle 5 are made in one piece.

[0045] Furthermore, the handle housing accommodates four electronic components 8. These electronic components 8 include, for example, an electrical switch 81, a printed circuit board 82, and a plurality of electrical conductors 84 for conducting electrical current and / or signals. A battery pack 6 and the printed circuit board 82 are arranged overlapping each other. This allows for a particularly compact design. The overlap is more than 38%. In particular, an actuating axis 810 of the switch 81 intersects the printed circuit board 82.

[0046] The ratchet 1 further comprises a drive housing 3. The drive housing 3 is connected to the handle housing 4 at its first end 401 in an axial direction along the longitudinal axis 100, for example by means of fasteners 48. The drive housing 3 is inserted into the handle housing 4 in the connection area.

[0047] The in Fig. The drive unit 30 shown in Figure 2 is arranged in the drive housing 3, whereby, due to the partial insertion of the drive housing 3 into the handle housing 4, the drive unit 30 is also partially arranged within the handle housing. The drive unit 30 is an electric motor 30, which has a drive shaft 32. The drive shaft 32 is supported in the drive housing 3, in particular by means of a bearing 33. The drive shaft 32 defines a longitudinal axis 100 of the ratchet 1. In particular, the ratchet 1 extends along the longitudinal axis 100. The drive housing 3 is detachably connected to the handle housing 4 at a first end 401 in the axial direction of the longitudinal axis 100.

[0048] The ratchet 1 further comprises a gear unit 70, which translates the torque generated by the electric motor 30. The gear unit 70 preferably has a planetary gear set. The gear unit 70 is screwed to the drive housing 3. The gear unit 70 is screwed to the drive housing 3 via an external thread in its encapsulation. The gear unit 70 is screwed to an output unit 2. In addition to translating the torque, the gear unit 70 also performs a connecting function. The gear unit 70 connects the output unit 2 and the drive housing 3 in such a way that the torque generated by the electric motor 30 can be transmitted to the output unit 2.

[0049] The output unit 2 comprises, in particular, an output housing 24, which accommodates an eccentric device 22 and at least parts of the tool holder 21, along with a direction-of-rotation lever 23. The eccentric device 22 is configured to convert a rotary motion of the drive shaft 32 into an oscillating or reciprocating motion, which is transmitted to the tool holder 21, in particular by means of a pawl device. The direction-of-rotation lever 23 is configured to act on the pawl device so that the tool holder 21 operates in one direction and can rotate freely in the opposite direction. The tool holder 21 is configured to accommodate a tool on a tool-changing device 210. For example, socket wrenches can be used to tighten or loosen screws or nuts. Furthermore, extensions, adapters, joints, and / or bit attachments can, in particular, be accommodated on the tool holder 21.The tool changing device 210 has a square shape, for example in a size of 1 / 4 inch, 3 / 8 inch or 1 / 2 inch, particularly on its outer surface.

[0050] The grip area 60a is specifically designed to offer the user improved tactile feedback and enhanced handling. For example, the grip area can be made of thermoplastic elastomer (TPE), which provides a soft and grippy surface, while the casing area 48 is made of a different material such as plastic, for example ABS, or metal to ensure the structural integrity of the housing. The TPE storage device 10 ensures an anti-slip property for the ratchet.

[0051] Fig. Figure 3 showed a top view of the ratchet 1, parallel and opposite to a mounting direction 211. Fig. Figure 4 shows a bottom view of the ratchet 1, parallel to the mounting direction 211.

[0052] The tapered section 60 is designed such that, in one viewing direction opposite to and parallel with a mounting direction 211, it tapers from a maximum width 62a of the ratchet 1 to a minimum width 62b of the ratchet 1 in the handle area 60a. The tapered section 60b is formed by a reduction of the ratchet width in the handle area 60a, running perpendicular to a longitudinal axis 100, with the minimum width 62b occurring essentially in the middle of the handle area 60a.

[0053] Preferably, the waist 60b has a waist factor that defines a ratio of the maximum width 62a of the ratchet 1 to the minimum width 62b of the ratchet 1 in the handle area 60a, and lies in the range of 0.15 to 0.18. The maximum width 62a is defined by the handle housing 4 in a viewing direction parallel and opposite to the mounting direction 211. The maximum width 62a does not include any rubber buffers or other projections. The waist 60b is concave in a viewing direction opposite and parallel to the mounting direction 211, and in particular has a saddle-like shape. A first surface 66a sloping down towards a saddle area 61, beginning in the area of ​​the battery pack mount 5, and a second surface 66b sloping down towards a saddle area 61, beginning in the area of ​​the ventilation openings 41. The first surface 66a slopes down from the battery pack mount 5 to the saddle area at an angle 661 to 10°.The second surface 66b slopes down at an angle of 660 to 25° from the ventilation openings 41 to the saddle area of ​​the 61 grip area 60a.

[0054] Fig. Figure 4 further shows a distance 64 between a first end 63 of the waist 60b and a first end of the pawl 831, parallel to the mounting direction 211 in the viewing direction, in a range of 0 mm to 5 mm. This ensures optimal accessibility and actuation of the pawl 83 with the index finger 602.

[0055] The battery pack 6 forms at least part of a second grip area 65, which is designed to accommodate the middle finger 603, ring finger 604, and little finger 605 of the user. This is relevant in situations where the user holds the ratchet 1 in an edge area of ​​the grip area 60a near the battery pack receptacle 5 using only the thumb 601 and index finger 602. The second grip area 65 complements the first grip area 60a and thus enables a complete and secure grip around the ratchet 1. The second grip area 65 consists of the handle housing 4 and the battery pack 6.

[0056] Furthermore, it shows Fig. 4 and Fig. 5 a further waist 67, which is directly connected to the waist 60b and essentially has the width of the pawl 83. This second waist 67 further tapers the grip area 60a on the operating side 104. It is concave and transitions seamlessly into the first waist 60b. The concave shape of the second waist 67 forms finger rests that, for example, accommodate the fingertips (in Fig. Figure 4 shows an operating position such that the fingers 602-605 rest on the pawl 83. This design promotes a secure and stable grip. In cross-section, the combination of the waist 60b and further waist 67 resembles the shape of a lightbulb (compare Figure 4). Fig. 5), wherein the further waisting 67 forms the base area of ​​the light bulb.

[0057] Fig. Figure 5 further shows a storage device 10, which is located on a side of the ratchet 1 facing away from the tool holder 21, or is arranged on the handle side 105. The handle side 105 of the ratchet 1 is the side of the ratchet 1 which, in a viewing direction, is perpendicular to a drive shaft 32 ( Fig. 2), parallel and opposite to a mounting direction 211 of a tool. In other words, the handle side 105 is the side facing away from a tool holder 21. The storage device 10 has a bridge 93 which connects two support points. Furthermore, it is illustrated Fig. 5 the tapering of the handle housing 4 in cross-section based on widths 62a and 62b.

[0058] Fig.Figure 6 shows a ratchet 1 with battery pack 6 in a sectional view through the ratchet 1 and the battery pack 6. The battery pack 6 has three battery cells 90a-c, which are arranged in the battery pack holder 5 such that two of the three battery cells 90a, 90b are located on a battery plane 102, which is arranged perpendicular to the mounting direction 211 and which is located on one side facing the operating unit 80. This arrangement particularly optimizes the space-saving integration of the battery pack 6 into the handle area 60. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3589452A1

[0002] EP 4257290A1

[0002]

Claims

[1] A driven ratchet (1) comprising a handle housing (4) which has a battery pack receptacle (5), a drive housing (3) comprising a drive unit (30) with a drive shaft (32) which defines a longitudinal axis (100) of the ratchet (1) and which is connected to the handle housing (4) at a first end (401) in an axial extension direction of the longitudinal axis (100), wherein the drive unit (30) is arranged at least partially in the drive housing (3) and / or the handle housing (4), an actuating device () comprising a pawl () for activating the ratchet (1), characterized by, that the handle housing (4) further comprises a waist (60b) which forms a first grip area (60a) which accommodates a thumb (601) and at least one index finger (602) of a user and the waist (60b) is arranged in such a way as to the pawl (83) that the ratchet (1) can be activated by means of a pressure movement of at least the index finger (602) over a longitudinal extension of the grip area (60a). [2] Ratchet (1) according to claim 1, characterized by , that the waisting (60b) is designed such that, in a viewing direction opposite to and parallel with a mounting direction (211) of a tool, it tapers from a maximum width (62a) of the ratchet (1) to a minimum width (62b) of the ratchet (1) in the handle area. [3] Ratchet according to claim 2, characterized bya waisting factor of the waisting (60b), which defines a ratio of the maximum width (62a) of the ratchet (1) to the minimum width (62b) of the ratchet (1) in the handle area (60a), and is in a range of 0.25 to 0.05, preferably 0.2 to 0.1, particularly preferably 0.15 to 0.

18. [4] Ratchet according to any of the preceding claims, characterized by , that a distance (64) of a first end of the waist (63) to a first end (831) of the pawl (83), in a viewing direction parallel to the mounting direction (211) of the tool, is in a range of 0mm to 10mm, preferably 0mm to 5mm. [5] Ratchet according to any of the preceding claims, characterized by a battery pack (6) which forms at least part of a second grip area (65) and which is designed in particular to accommodate a middle finger (603), a ring finger (604) and a little finger (605) of a user. [6] Ratchet according to claim 5, further comprising a printed circuit board (82), characterized by , that the battery pack (6) and the circuit board (82) are arranged in such a way that the circuit board (82) overlaps the battery pack (6) at least in part. [7] Ratchet (1) according to any of the preceding claims, characterized by , that the waist (60b) is at least partially convex, concave or a combination thereof. [8] Ratchet (1) according to any of the preceding claims, characterized by a further waist (67) which is directly connected to the waist (60b) and essentially has the width of the pawl (83). [9] Ratchet (1) according to any of the preceding claims, characterized by, that the battery pack (6) comprising at least three battery cells (90a-c) is arranged in the battery pack receptacle (5) such that two of the three battery cells (90a,b) are arranged on a battery plane (102) which is arranged perpendicular to the mounting direction (211) and on a side facing the control unit (80). [10] Ratchet (1) according to any of the preceding claims, characterized by , that the first grip area (60a) is saddle-shaped in a viewing direction, perpendicular to the mounting direction (211) of the tool, having a first surface (66a) sloping down to a saddle area (61) beginning in the area of ​​the battery pack receptacle (5), and a second surface (66b) sloping down to the saddle area (61) beginning in the area of ​​ventilation openings (41).

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