Holding device for a rotary blade

Abstract

The invention relates to a holding device (10) for a rotating blade (12) with a rotating blade receptacle (14) for receiving the rotating blade (12).

Description

[0001] The invention relates to a holding device according to the preamble of claim 1 and a method according to the preamble of claim 11.

[0002] Holders for rotating blades are commonly found in everyday life, for example, in connection with screwdrivers, bit holders, or cordless screwdrivers for turning screws and / or nuts. Especially when particularly precise screw fastening is required, such as when turning adjusting screws or very delicate structures, it is essential to know the exact number of revolutions of the holding device's blade holder when turning a screw and / or nut in order to ensure a reliable and precise turning process.

[0003] With existing holding devices for rotary blades, the rotations of the blade holder must be manually counted by the operator during rotation. However, manually counting the rotations is not only cumbersome for the operator, but also inaccurate, prone to errors, and often impractical in practice, especially with a high number of rotations and / or high rotational speeds, particularly when using a cordless screwdriver.

[0004] The object underlying the invention is therefore to simplify the counting of revolutions of the rotary blade holder of a holding device for rotary blades.

[0005] The problem is solved with a holding device of the type mentioned above, wherein the holding device includes a mechanical revolution counter for recording revolutions of the rotary blade holder.

[0006] A mechanical revolution counter, which records the rotations of the rotary blade holder in the holding device, eliminates the need for the operator to manually count the revolutions. The rotations of the rotary blade holder are thus automatically and accurately recorded without operator intervention. This ensures reliable and precise revolution counting, especially at high rotational speeds and / or with a high number of revolutions, guaranteeing precise screw connections in a wide variety of applications, particularly where high accuracy is crucial.

[0007] The holding device and / or the rotary blade holder can include a fastening device for the rotary blade, for example a magnetic holder and / or a retaining device and / or a drill chuck. The number of revolutions of the rotary blade holder can preferably be determined by means of the mechanical revolution counter.

[0008] In a preferred embodiment of the holding device according to the invention, the holding device is designed as a bit holder or includes a bit holder configured to hold different interchangeable bits for different screw heads. Alternatively, the holding device is designed as a rotary blade carrier configured to support at least one non-interchangeable rotary blade. Interchangeable bits can each comprise different rotary blades. The rotary blade can be designed as the screwdriver blade of a screwdriver, in particular a hand screwdriver. The rotary blade can also be designed as a special tool for adjusting a furniture fitting, in particular with a non-standard rotary blade, wherein the rotary blade can, for example, have a shape specifically corresponding to an adjusting screw of the furniture fitting.Preferably, the holding device is designed as a bit holder with a rotation counter function.

[0009] In another preferred embodiment of the holding device according to the invention, the holding device can be attached to a hand screwdriver and / or a hand screwdriver handle and / or an electric or pneumatic screwdriver and / or a ratchet and / or a torque wrench, in particular by means of a mounting extension or a mounting receptacle. Alternatively or additionally, the holding device is a component of a hand screwdriver and / or an electric or pneumatic screwdriver and / or a ratchet and / or a torque wrench. The mounting extension is preferably designed as a hexagonal profile for clamping or inserting into a drill chuck or into a receptacle of a hand screwdriver handle. The mounting extension can also have any other cross-section, for example, a square cross-section.The holding device can be an integral part of a hand screwdriver and / or an electric or pneumatic screwdriver and / or a ratchet and / or a torque wrench. The holding device can also be part of a bit holder with a handle or be attached to a bit holder with a handle.

[0010] In a further preferred embodiment of the holding device according to the invention, the mechanical revolution counter comprises a rotating spindle which can be set in rotation by rotating the rotary blade holder, wherein the rotating spindle and the rotary blade holder preferably rotate simultaneously at the same or at different rotational speeds when the rotary blade holder is rotated. The rotating spindle is preferably designed as a shaft which may have an external thread at least partially. Preferably, when the rotary blade holder is rotated, the rotating spindle rotates at the same rotational speed as the rotary blade holder, so that the revolutions of the rotary blade holder correspond to the revolutions of the rotating spindle.With different rotational speeds of the rotary spindle and the rotary blade holder, a defined transmission ratio between the rotary blade holder and the rotary spindle can ensure the desired rotational speeds. Preferably, the rotary spindle and the rotary blade holder are kinetically and / or kinematically connected to each other, particularly via a gear or transmission, with a defined transmission ratio to provide different rotational speeds. Preferably, the rotary spindle, the mounting extension, and / or the rotary blade holder are arranged parallel to each other and / or in a line one behind the other along a common longitudinal axis.

[0011] Furthermore, a holding device according to the invention is preferred in which the rotary spindle and the rotary blade holder are torsionally rigidly connected to one another and / or the rotary spindle and the rotary blade holder are part of a common integral body of revolution, wherein the rotary spindle and the mounting extension are preferably torsionally rigidly connected to one another and / or the rotary spindle and the mounting extension are part of a common integral body of revolution. The rotary spindle, the mounting extension, and the rotary blade holder are preferably arranged linearly one behind the other in an aligned row. Preferably, the mounting extension is arranged at a first end of the rotary spindle and the rotary blade holder at a second end of the rotary spindle.By rotating the mounting extension, for example using a cordless screwdriver, the rotating spindle is preferably set into rotation, whereby the rotation of the rotating spindle preferably also sets the rotary blade holder into rotation. The rotary blade holder, the rotating spindle, and the mounting extension preferably rotate simultaneously at the same rotational speed. The rotating spindle preferably connects the mounting extension kinetically and / or kinematically to the rotary blade holder and / or transmits a torque and / or a rotational movement from the mounting extension to the rotary blade holder. Preferably, the rotating spindle, the mounting extension, and the rotary blade holder form a common integral body of revolution and / or the rotating spindle, the mounting extension, and the rotary blade holder are torsionally rigidly connected to one another.The rotary spindle, the mounting extension and the rotary blade holder can be positively connected, force-fit and / or materially bonded to each other, for example by being screwed or welded together.

[0012] In a further development of the holding device according to the invention, the mechanical revolution counter comprises a translational body which can be moved into translation by rotating the rotary blade holder, wherein the translational body is preferably arranged in contact with the rotary spindle and / or kinetically and / or kinematically connected to the rotary spindle. Translation is a linear movement. The translational body is preferably designed as a nut and preferably includes a circular bore, wherein the bore may have an internal thread. The translational body is preferably cuboid in shape, wherein the circular bore preferably extends perpendicularly through two parallel rectangular faces of the cuboid. The rotary spindle preferably extends through the translational body, in particular through the bore in the translational body.The internal thread of the translation body preferably corresponds to the external thread of the spindle, in particular the threads mesh with each other. Rotation of the spindle sets the spindle's thread in motion, thereby transferring the spindle's motion to the translation body's thread, causing the translation body to then perform a linear movement in the longitudinal direction of the spindle.

[0013] A further advantage of the invention is a holding device in which the revolution counter has a revolution display area by means of which the revolutions of the rotary blade holder, in particular a number of revolutions of the rotary blade holder, can be displayed and / or read, wherein a scale with at least one reading mark for reading the revolutions of the rotary blade holder is preferably arranged in the revolution display area and / or wherein the translation body preferably has a reading mark corresponding to the scale for displaying the revolutions of the rotary blade holder. A scale preferably comprises several reading marks designed as graduations, spaced evenly apart and arranged next to each other, wherein each graduation preferably corresponds to one revolution or a multiple of one revolution of the rotary blade holder.The rotation indicator area with the scale preferably extends linearly along the longitudinal axis of the rotary spindle. The scale's reading marks can be engraved, printed, or laser-etched. The translation body's indicator mark is preferably an engraving, a groove, or a notch. The translation body's indicator mark can also be a printed or laser-etched marking, such as a line or an arrow. The number of rotations can be read from the current position using the translation body's indicator mark and the scale's reading marks. In particular, the number of rotations of the rotary blade holder can be read by an operator aligning the indicator mark with one of the scale's reading marks.

[0014] In a further preferred embodiment of the holding device according to the invention, the revolution counter comprises a housing which preferably rotatably mounts the rotary spindle and / or the rotary blade holder and / or the mounting extension and / or carries the revolution indicator area, in particular the scale and / or guides the translation element, in particular in a linear guide recess of the housing, wherein the housing is preferably designed such that rotation of the housing can be blocked when the rotary blade holder and / or the rotary spindle and / or the mounting extension rotates. Rotation of the housing can be prevented by manual locking by an operator, by fixing the housing, for example, to a cordless screwdriver, or by an eccentric weight. The scale is preferably engraved or printed on an outer surface of the housing, in particular along the guide recess of the housing.The translation body, in particular the indicator mark of the translation body, is preferably visible from the outside through the guide recess for an operator to read the number of revolutions.

[0015] In another preferred embodiment of the holding device according to the invention, the guide recess of the housing provides at least one, and in particular two, stops for the translation body to block further rotations of the rotary blade holder, wherein a first stop preferably defines a zero point of the scale of the rotation indicator range and a second stop defines a limit value and / or a target number of rotations for the rotary blade holder. When a maximum number of rotations and / or an intended target number of rotations of the rotary blade holder is reached, the translation body preferably abuts a stop in the housing, thus blocking further rotations. A target number of rotations can be set, in particular, by manually moving the translation body on the rotary spindle and / or by manually setting a zero point of the scale.The zero point of the scale can be located at a different point on the scale, for example in the middle of the scale, instead of at a stop on the housing, and / or can be manually set individually, in particular by manually moving the translation body on the rotary spindle.

[0016] In a further development of the holding device according to the invention, the mechanical revolution counter is configured to count the revolutions of the rotary blade holder for adjusting a furniture fitting, wherein the number of revolutions preferably corresponds to a travel distance of an adjustment mechanism for the furniture fitting. The adjustment mechanism preferably comprises an adjusting screw. The adjusting screw is preferably turned to adjust the furniture fitting, in particular with a rotary blade held by the rotary blade holder. The revolutions of the rotary blade holder preferably correspond to the revolutions of the adjusting screw for the furniture fitting. The adjusting screw is used in particular to adjust a damper and / or a spring, in particular a preload force of a spring, of a furniture fitting, in particular of the adjustment mechanism of the furniture fitting.The furniture fitting can be, for example, a fitting for a drawer, a cabinet door, a cabinet flap, or for a shelf, especially a rotating shelf. By adjusting the furniture fitting using the adjusting screw, the damping and / or damping force of a fluid damper, especially an oil damper, the load-bearing capacity and / or the counter-torque and / or an opening angle and / or an inclination for a furniture front of a cabinet door or cabinet flap, and / or the stop of a drawer can be adjusted.

[0017] The rotations of the rotary blade holder preferably correspond to a travel distance of the adjusting mechanism and / or the adjusting screw, whereby, for example, 70 rotations of the adjusting screw can represent a travel distance of 35 mm. This travel distance, for example, adjusts the spring preload of a spring in the adjusting mechanism. A damper of a furniture fitting can include a pressure cylinder, wherein the pressure in the pressure cylinder can preferably be adjusted by turning the adjusting screw via the rotations of the rotary blade holder. The furniture fitting can be a component of various fitting systems, in particular with different opening variants of a cabinet door and / or cabinet flap, for example, a furniture front that moves parallel to a cabinet body and / or a furniture front that pivots relative to the cabinet body.By adjusting the furniture fitting with the adjusting screw, the opening torque of the flap and / or a stop position of the flap can preferably be adjusted, and / or adapted to different furniture front variants, for example, different sizes and / or different weights of the furniture front. Relevant information on the number of turns required for the intended adjustments of different furniture fittings and / or different furniture front variants can be found, for example, in a digital database and / or in the assembly instructions for the furniture being adjusted.

[0018] The problem underlying the invention is further solved by a method of the type mentioned at the outset, wherein rotations of the rotary blade holder are recorded by means of a mechanical rotation counter. Preferably, the holding device is designed according to one of the preceding embodiments. With regard to the advantages and modifications of the method according to the invention, reference is made to the advantages and modifications of the holding device according to the invention.

[0019] Preferred embodiments of the invention are explained and described in more detail below with reference to the accompanying drawings. These show: Fig. 1 a holding device according to the invention with a mechanical revolution counter when used with a screwdriver during the adjustment of a furniture fitting in a side view; Fig. 2 a holding device according to the invention with a mechanical revolution counter when used with a screwdriver in a side view; Fig. 3 a holding device according to the invention with a mechanical revolution counter with a translation body in a first position in a perspective side view; Fig. 4 the holding device made of Fig. 3 with the translation body in a second position in a perspective side view; Fig. 5 the holding device made of Fig. 4with the translation body in a third position in a perspective side view; Fig. 6 a furniture fitting adjustable by means of a rotating blade with an adjustment mechanism in a side view; Fig. 7 the adjustment mechanism of the furniture fitting in a first adjustment state in a detailed side view; and Fig. 8 the adjustment mechanism made of Fig. 7 in a second setting state in a detailed view from the side.

[0020] The Figs. 1 and 2 The figures show a holding device 10 according to the invention in use with a screwdriving machine 100, each in a side view, wherein the holding device 10 is in the Fig. 1The illustration shows the process of adjusting a furniture fitting 200 using the screwdriver 100. The screwdriver 100 is designed as an electric screwdriver, specifically a cordless screwdriver. The holding device 10 is connected to the screwdriver 100 by means of a mounting extension 18, which is designed as a hexagonal profile, by clamping the mounting extension 18 into a drill chuck 102 of the screwdriver 100. In this way, a rotational movement can be transmitted to the mounting extension 18 via the drill chuck 102 by means of the screwdriver 100. A rotary blade receptacle 14 of the holding device 10 is arranged at the end of the holding device 10 opposite the mounting extension 18. The rotary blade receptacle 14 of the holding device 10 is designed to receive a rotary blade 12, which is held by the rotary blade receptacle 14, in particular magnetically and / or positively.The rotational movement generated by the screw machine 100 and transmitted to the mounting extension 18 of the holding device 10 also sets the rotary blade holder 14, and thus the rotary blade 12, into rotation. The rotation of the rotary blade 12 allows the furniture fitting 200 to be adjusted.

[0021] Furthermore, the holding device 10 comprises a mechanical revolution counter 16, which is arranged between the mounting extension 18 and the rotary blade holder 14. The revolution counter 16 comprises a rotary spindle 20, wherein the rotary spindle 20, the mounting extension 18, and the rotary blade holder 14 extend one behind the other along a common longitudinal axis. The mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 are torsionally rigidly connected to one another, for example, by a screw connection or welding, such that rotation of the mounting extension 18 leads to rotation of the rotary spindle 20. The rotation of the rotary spindle 20, in turn, leads to rotation of the rotary blade holder 14 and thus to rotation of the rotary blade 12. The mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 can together form an integral body of revolution.Furthermore, the mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 can each be connected to one another, for example, via a gear and / or a transmission, so that defined transmission ratios allow for the achievement of desired rotational speeds of the mounting extension 18, the rotary spindle 20, and the rotary blade holder 14. Preferably, the mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 are kinetically and / or kinematically connected such that they rotate at the same rotational speed.

[0022] The revolution counter 16 also comprises a housing 32, wherein the mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 are arranged on and / or supported by the housing 32. The rotary spindle 20 is located inside the housing and extends longitudinally through the housing 32. The mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 are rotatably mounted on the housing 32, so that the mounting extension 18, the rotary spindle 20, and the rotary blade holder 14 can perform a rotational movement without the housing 32 moving with them.In a rotation indicator area 24, a number of rotations of the rotary blade holder 14 can be read by an operator during the adjustment process of the furniture fitting 200, so that the operator can always monitor the current progress of the adjustment process and stop the adjustment when a desired number of rotations is reached, in order to ensure a precise and reliable adjustment of the furniture fitting 200.

[0023] The Fig. 3Figure 1 shows a holding device 10 according to the invention with a mechanical revolution counter 16 in a perspective detail view from the side. The revolution counter 16 of the holding device 10 comprises a translational body 22, which is set into translation by a rotational movement of the rotary spindle 20 in the direction of rotation R, so that the translational body 22 performs a translational movement in the translational direction T along the rotary spindle 20 due to the rotation of the rotary spindle 20. The translational body 22 is designed as a cuboid nut, wherein the translational body 22 has a bore extending parallel to the translational direction T. The bore in the translational body 22 comprises an internal thread.The rotary spindle 20 is designed as a shaft with an external thread, in particular as a threaded rod, wherein the thread of the rotary spindle 20 corresponds to the thread of the translation body 22, so that a rotation of the rotary spindle 20 leads to a translational movement of the translation body 22 along the extension direction of the rotary spindle 20 in the longitudinal direction of the rotary spindle 20 by interlocking the threads of the rotary spindle 20 and the translation body 22.

[0024] The housing 32 of the revolution counter 16 of the holding device 10 has a guide recess 34 which extends along the rotary spindle 20 and is designed as a slit-shaped and / or slot-shaped opening in the housing 32. This recess is configured to guide and support the translation body 22 on the rotary spindle 20 for performing the translational movement in the translational direction T. The guide recess 34 is part of the revolution indicator area 24 of the holding device 10 and extends over the entire depth of the housing 32, thus forming a through-opening. Alternatively, the guide recess 34 can be designed, at least partially, as a non-through opening in the housing 32, which does not extend over the entire depth of the housing 32, meaning that the housing 32 is only open on one side in the area of ​​the guide recess 34.The rotation indicator area 24 is arranged on the housing 32 of the holding device 10 and serves to allow an operator of the holding device 10 to read the number of rotations of the rotary blade holder 14 and thus of the rotary blade 12 from the outside of the holding device 10, in particular on the rotation counter 16.

[0025] A scale 26 is arranged in the rotation indicator area 24, the scale 26 comprising several reading marks 28 which are arranged side by side and spaced apart from each other along the guide recess 34. The scale 26 is designed as a line scale, the reading marks 28 being each division of the scale 26, which divides the scale 26 into sections, in particular into sections of equal size, such that the number of rotations of the rotating blade holder 14 can be read from the scale 26. The scale 26 may also include markings, in particular numerical markings, which include digits and indicate the number of rotations of the rotating blade holder 14 that each division or reading mark 28 of the scale 26 corresponds to.The scale 26, in particular the reading marks 28 of the scale 26, can be engraved on the outside of the housing 32 along the guide recess 34 or printed or laser-etched onto the outside of the housing 32 along the guide recess 34.

[0026] The translation body 22 includes an indicator mark 30, which may be designed, for example, as an engraving or notch, or printed or laser-etched onto the translation body 22. The indicator mark 30 is designed as a line-shaped marking on the translation body 22, and the indicator mark 30 corresponds to the scale 26 on the housing 32 of the holding device 10 in such a way that the indicator mark 30 indicates a number of revolutions of the rotary blade holder 14 by aligning the indicator mark 30 with a reading mark 28 of the scale 26, and can be read externally by an operator of the holding device 10.

[0027] If the fastening extension 18 is set into rotation, for example by means of the electronic screw machine 100, the rotary spindle 20 connected to the fastening extension 18 is also set into rotation. Due to the rotation of the rotary spindle 20, the translation body 22 with the indicator mark 30 within the guide recess 34 performs a translational movement along the rotary spindle 20 and accordingly along the scale 26 on the housing 32 in the translational direction T, whereby the number of revolutions already completed can be read externally by an operator of the holding device 10 by means of the alignment of the indicator mark 30 of the translation body 22 with a reading mark 28 of the scale 26 in the revolution display area 24 of the revolution counter 16 of the holding device 10.

[0028] The number of revolutions readable by means of the scale 26 corresponds to the number of revolutions of the rotary blade holder 14 and thus of the rotary blade 12. In this way, it can be ensured that, for example, when tightening or loosening a screw, in particular when adjusting a furniture fitting 200, an intended number of revolutions of the rotary blade 12 can be carried out and controlled precisely and reliably by reading a number of revolutions of the rotary blade holder 14 by means of the revolution counter 16.

[0029] The guide recess 34 in the housing 32, which guides the translation body 22, also defines stops 36a, 36b, by means of which the translational movement in the translational direction T of the translation body 22 along the rotary spindle 20 is limited in both directions. A first stop 36a at a first end of the guide recess 34 can, for example, define the zero point of the scale 26, wherein the translation body 22 is positioned against the stop 36a before a screw is tightened or loosened by means of the rotary blade 12 such that the indicator mark 30 of the translation body 22 corresponds to the first reading mark 28 of the scale 26, wherein the first reading mark 28 of the scale 26 corresponds to zero revolutions of the rotary blade holder 14.At the second end of the guide recess 34, opposite the first end of the guide recess 34, a second stop 36b is arranged, which limits the maximum possible number of revolutions of the rotary blade holder 14, since the translation body 22 hits the stop 36b at the maximum possible number of revolutions of the rotary blade holder 14 and further revolutions of the rotary blade holder 14 are prevented by blocking the translation movement in the translation direction T along the rotary spindle 20 by the stop 36b.

[0030] Furthermore, a zero point of the scale 26 can be defined by individually setting a starting point of the translation body 22 at an intended distance from the first stop 36a along the rotary spindle 20, thus specifying a desired maximum number of revolutions of the rotary blade holder 14, in particular by defining a target number of revolutions. An intended target number of revolutions of the rotary blade holder 14 can, for example, be defined by positioning the translation body 22 along the guide recess 34 before the rotary blade 12 is placed on a screw by rotating the rotary spindle 20, such that when the translation body 22 abuts one of the stops 36a, 36b, the desired number of revolutions of the rotary blade holder 14 is reached, whereby further revolutions of the rotary blade holder 14 are blocked by the translation body 22 abutting one end of the guide recess 34.

[0031] The Fig. 4and 5 The holding device 10 according to the invention with mechanical revolution counter 16 is shown in states other than in the Fig. 3 , wherein the translation body 22 has different positions in each case. In the Fig. 3 The translation body 22 can be seen in a position at the first stop 36a, with the indicator mark 30 corresponding to the first reading mark 28 of the scale 26 and thus indicating zero revolutions.

[0032] In the Fig. 4 The translation body 22 is positioned approximately midway between the stop 36a and the stop 36b along the guide recess 34. The Fig. 4The position of the translation body 22 shown can, for example, result from the rotations of the rotary blade holder 14 during the tightening or loosening of a screw using the rotary blade 12. At the current position of the translation body 22, the number of rotations already performed by the rotary blade holder 14, and thus of the rotary blade 12, can be read by the operator by the corresponding indicator mark 30 with a reading mark 28 of the scale 26. The position shown in the Fig. 4The position of the translation body 22 shown can also be preset before screwing in or loosening a screw using a rotary blade 12 in order to define a desired zero point of the scale 26 and thus a target number of revolutions of the rotary blade holder 14 in advance, so that the translation body 22 is positioned at a defined distance to the stops 36a, 36b and thus, when an intended target number of revolutions of the rotary blade holder 14 is reached, it hits the stop 36a or the stop 36b and further revolutions are blocked.

[0033] In the Fig. 5The translation body 22 is arranged near the stop 36b. The translation body 22 is in this position, for example, when a screw is being inserted using the rotary blade 12 and the intended number of revolutions of the rotary blade holder 14 is reached, and the translation body 22 thus abuts the stop 36b in the guide recess 34 on the housing 32, thereby blocking further revolutions of the rotary blade holder 14.

[0034] The Fig. 6Figure 1 shows a furniture fitting 200, which is adjustable via an adjustment mechanism 202 that can be adjusted by means of a rotary blade 12. The furniture fitting 200 is designed as a furniture fitting 200 for a furniture front 212 for opening and closing a cabinet, wherein the furniture front 212 can perform a pivoting movement for opening and closing the cabinet by means of the furniture fitting 200. The furniture front 212 is attached to support arms 210, wherein the support arms 210 connect the furniture front 212 to the adjustment mechanism 202.

[0035] The furniture fitting 200 can be adjusted by means of the adjusting mechanism 202. In particular, the load-bearing capacity and / or counter-torque and / or opening angle and / or inclination of the cabinet front 212 can be set via the adjusting mechanism 202, so that the cabinet opens and closes as intended. To adjust the furniture fitting 200 precisely and reliably via the adjusting mechanism 202 using a rotary blade 12, it is necessary to know the number of turns of the rotary blade 12 when adjusting the mechanism 202, since an intended setting of the furniture fitting, for example, an intended load-bearing capacity, corresponds to a defined number of turns of an adjusting screw 204 of the adjusting mechanism 202.

[0036] For example, if it is intended to adjust the furniture fitting 200 via the adjustment mechanism 202 using a screwdriver 100, the number of rotations of the rotary blade 12 during an adjustment process of the furniture fitting 200 can be recorded with a holding device 10 according to the invention by counting the rotations of the rotary blade holder 14, in order to achieve a desired adjustment of the furniture fitting 200 precisely and reliably by means of the mechanical rotation counter 16 of the holding device 10. The rotations of the rotary blade 12 can be read by means of the mechanical rotation counter 16 of the holding device 10 by counting the rotations of the rotary blade holder 14 of the holding device 10, so that the adjustment process of the furniture fitting 200 can be stopped when an intended number of rotations of the rotary blade holder 14 is reached.The appropriate number of turns for adjusting the furniture fitting 200 via the adjustment mechanism 202 for a given furniture fitting 200 can be obtained, for example, from an online database or from the operating instructions for the furniture fitting 200.

[0037] The Figs. 7 and 8Each figure shows a detailed view of the adjustment mechanism 202 of the furniture fitting 200 in different adjustment states. The adjustment mechanism 202 comprises a spring 208, which is connected at one end to one of the support arms 210 and at the other end to an adjusting screw 204. The preload of the spring 208 can be adjusted by adjusting the tension on the spring 208 using the adjusting screw 204. By adjusting the preload of the spring 208, which is connected to the support arm 210 to which the furniture front 212 is attached, the opening torque and / or the load-bearing capacity and / or the counter-torque and / or the opening angle of the furniture fitting 200 can be individually adjusted.

[0038] To adjust the preload force of the spring 208 and thus to adjust the furniture fitting 200, the adjusting screw 204 of the adjusting mechanism 202 has a crown wheel 206, wherein the adjusting screw 204 can be turned via the crown wheel 206 by means of a rotary blade 12, wherein by turning the adjusting screw 204 by means of a rotary blade 12 the end of the spring 208 connected to the adjusting screw 204 travels a travel path V along the adjusting screw 204, whereby the preload force of the spring 208 changes by moving the end of the spring along the adjusting screw 204.

[0039] In the Fig. 7 Figure 200 shows a setting of the furniture fitting 200 in which a low preload force of the spring 208 is set, resulting in a low counter-torque of the furniture fitting 200. The figure shown in the Fig. 8The position of the adjustment mechanism 202 shown results in a high preload force of the spring and thus in a high counter-torque of the furniture fitting 200.

[0040] To precisely and reliably adjust the setting mechanism 200 to a suitable setting for a particular furniture fitting 200, it is advantageous if the adjusting screw 204 is turned via the crown wheel 206 by a predefined and intended number of revolutions. Since the number of revolutions of the adjusting screw 204 corresponds to the number of revolutions of a rotating blade 12 and thus of a rotating blade receptacle 14 of a holding device 10, a holding device 10 according to the invention can be used with the revolution counter 16 to count the number of revolutions when adjusting the furniture fitting 200, thus ensuring at all times that the furniture fitting 200 is correctly adjusted with the required number of revolutions.

[0041] The operating instructions for a furniture fitting 200 may, for example, already specify how many turns of the adjusting screw 204 are required to set a desired setting of the furniture fitting 200 via the adjusting mechanism 202 in order to set a suitable counter-torque and / or a suitable opening angle of the furniture front 212. An operator who adjusts the furniture fitting 200, for example with a screwdriver 100, can use a holding device 10 according to the invention with a mechanical revolution counter 16 for adjusting the furniture fitting 200. This device counts the turns of the rotary blade holder 14 and thus the turns of the rotary blade 12 and the turns of the adjusting screw 204 when the furniture fitting 200 is adjusted via the adjusting mechanism 202.By reading the number of revolutions in the revolution indicator area 24 of the revolution counter 16, the operator can determine when the required number of revolutions of the adjusting screw 204 has been reached. Consequently, a furniture fitting 200 can be adjusted quickly, easily, and precisely as intended using the holding device 10 with mechanical revolution counter 16. Furthermore, other furniture fitting systems besides the one with spring 208 shown can be adjusted using the holding device 10 with mechanical revolution counter 16, provided that a number of revolutions of the rotary blade holder 14 corresponds to an intended adjustment of the furniture fitting system. For example, fitting systems that include at least one oil damper instead of a spring 208 can also be adjusted using the holding device 10 with mechanical revolution counter 16. Reference sign

[0042] 10Haltevorrichtung 12Drehklinge 14Drehklingenaufnahme 16Umdrehungszählvorrichtung 18Befestigungsfortsatz 20Drehspindel 22Translationskörper 24Umdrehunganzeigebereich 26Skala 28Ablesemarke 30Anzeigemarke 32Gehäuse 34Führungsausnehmung 36a, 36bAnschläge 100Schraubmaschine 102Bohrfutter 200Möbelbeschlag 202Einstellmechanismus 204Einstellschraube 206Kronenrad 208Feder 210Trägerarme 212Möbelfront RRotationsrichtung TTranslationsrichtung VVerfahrweg

Claims

1. Holding device (10) for a rotary blade (12), with - a rotary blade holder (14) for receiving the rotary blade (12); characterized by a mechanical revolution counter (16) for detecting revolutions of the rotary blade holder (14).

2. Holding device (10) according to claim 1, characterized in that the holding device (10) - is designed as a bit holder or comprises a bit holder which is designed to hold different interchangeable bits for different screw heads, or - is designed as a rotary blade carrier which is designed to carry at least one non-interchangeable rotary blade (12).

3. Holding device (10) according to claim 1 or 2, characterized in thatthe holding device (10) - can be fastened to a hand screwdriver and / or to a hand screwdriver handle and / or to an electric or pneumatic screwing machine (100) and / or to a ratchet and / or to a torque wrench, in particular by means of a fastening extension (18) or a fastening receptacle, and / or - is a component of a hand screwdriver and / or an electric or pneumatic screwing machine (100) and / or a ratchet and / or a torque wrench.

4. Holding device (10) according to one of the preceding claims, characterized in that the mechanical revolution counting device (16) comprises a rotary spindle (20) which can be set in rotation by rotating the rotary blade holder (14), wherein the rotary spindle (20) and the rotary blade holder (14) preferably rotate simultaneously at the same or at a different rotational speed when rotating the rotary blade holder (14).

5. Holding device (10) according to claim 4, characterized in that the rotating spindle (20) and the rotating blade holder (14) are connected to one another in a torsionally rigid manner and / or the rotating spindle (20) and the rotating blade holder (14) are part of a common integral rotational body, wherein the rotating spindle (20) and the fastening extension (18) are preferably connected to one another in a torsionally rigid manner and / or the rotating spindle (20) and the fastening extension (18) are part of a common integral rotational body.

6. Holding device (10) according to one of the preceding claims, characterized in that the mechanical revolution counting device (16) comprises a translation body (22) which can be set into translation by rotating the rotary blade holder (14), wherein the translation body (22) is preferably arranged in contact with the rotary spindle (20) and / or is kinetically and / or kinematically connected to the rotary spindle (20).

7. Holding device (10) according to one of the preceding claims, characterized in that the revolution counting device (16) has a revolution display area (24) by means of which the revolutions of the rotary blade holder (14), in particular a number of revolutions of the rotary blade holder (14), can be displayed and / or read, wherein in the revolution display area (24) preferably a scale (26) with at least one reading mark (28) for reading the revolutions of the rotary blade holder (14) is arranged and / or wherein the translation body (22) preferably has an indicator mark (30) corresponding to the scale (26) for displaying the revolutions of the rotary blade holder (14).

8. Holding device (10) according to one of the preceding claims, characterized in thatthe revolution counting device (16) comprises a housing (32) which preferably - rotatably supports the rotary spindle (20) and / or the rotary blade receptacle (14) and / or the fastening extension (18), and / or - carries the revolution display area (24), in particular the scale (26), and / or - guides the translation body (22), in particular in a linear guide recess (34) of the housing (32), wherein the housing (32) is preferably designed such that rotation of the housing (32) can be blocked upon rotation of the rotary blade receptacle (14) and / or the rotary spindle (20) and / or the fastening extension (18).

9. Holding device (10) according to claim 8, characterized in thatthe guide recess (34) of the housing (32) defines at least one, in particular two, stops (36a, 36b) for the translation body (22) for blocking further revolutions of the rotary blade holder (14), wherein a first stop (36a) preferably defines a zero point of the scale (26) of the revolution display area (24) and a second stop (36b) defines a limit value and / or a target number of revolutions for the revolutions of the rotary blade holder (14).

10. Holding device (10) according to one of the preceding claims, characterized in that the mechanical revolution counting device (16) is configured to count the revolutions of the rotary blade holder (14) for adjusting a furniture fitting (200), wherein the number of revolutions preferably corresponds to a travel path (V) of an adjustment mechanism (202) for the furniture fitting (200).

11. Method for adjusting a furniture fitting (200) with the steps: - rotating a rotary blade holder (14) of a holding device (10), in particular a holding device (10) according to one of claims 1 to 10, characterized by the step: - detecting revolutions of the rotary blade holder (14) by means of a mechanical revolution counter device (16).

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