Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
  • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
  • G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
  • G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
  • H01H43/02—Details
  • H01H43/04—Means for time setting
  • H01H43/06—Means for time setting comprising separately adjustable parts for each programme step, e.g. with tappets
  • H01H43/065—Means for time setting comprising separately adjustable parts for each programme step, e.g. with tappets using cams or discs supporting a plurality of individually programmable elements (Schaltreiter)

Definitions

• the invention relates to a time switch with a rotatably driven switching drum with a plurality of switching elements arranged on a circular path, which are each adjustable in one of at least two possible switching positions for controlling a switching operation of the time switch and the approximately radially extending switching arms with a radially within the circular path are connected to the switching elements lying switching ring, the switching arms performing a pivoting movement about a pivot axis which is essentially tangential to the switching ring when adjusting the switching elements, and wherein the switching ring is formed from two separate support rings and the switching elements into a first, with the first Support ring connected group and a second group connected to the second support ring of the same number are divided.
• a time switch of the generic type (DE 28 13 069 C2) is known, which has a rotationally driven shift drum.
• This shift drum which is referred to in the cited publication as a drum, has a plurality of shift elements arranged on a circular path. These switching elements are used to control a switching operation of the time switch and can be optionally adjusted to one of at least two possible switching positions.
• the shift elements in this known construction are integrally connected to a shift ring located radially within the circular path by means of shift arms which extend approximately radially.
• This unit referred to as the switching disk, consisting of the switching elements with their switching arms and the switching ring, can be produced in a simple manner as an injection molded part, which can also be assembled in a simple manner due to its one-piece design. Furthermore, due to this one-piece design, a relatively large number of switching elements can be arranged for a given diameter of the shift drum, so that a relatively large number of switching options are made available.
• Practice has shown that with shift drums with a diameter of about 5 cm, 30-minute switching intervals can be set up with a 24-hour timer. This means that with a 24 hour circulation the shift drum by 360 ° forty-eight shift elements are provided.
• the switching arms of the individual switching elements are guided through individual slots of the switching drum which are open on one side and through which the respective switching arm with its radially outer end region extends.
• the associated switching element sits on the outer end of each switching arm, so that it is also carried securely in the circumferential direction when the switching drum rotates.
• the switching arms must have a certain radial length in order to enable a sufficient actuating movement without the switching arms being damaged. For this reason, the diameter of the switching ring is also significantly smaller than the circular path on which the switching elements are arranged at the outer end of the switching arms.
• this program carrier forms a shift drum for a time switch of the generic type.
• the shift drum has a two-part shift ring consisting of two separate support rings, on which the shift elements are arranged to be adjustable in the axial direction of the axis of rotation of the shift drum.
• the switching elements are divided into two groups of the same number and assigned to the two switching rings in groups.
• the switching elements are radial
• Switch arms connected to the respective associated support rings and arranged alternately in succession in groups in the circumferential direction.
• the switching arms of the two groups of switching elements cross over depending on the switching position of the switching elements in the radial area between the two Support rings and the radially outer switching elements.
• a so-called “gap” is provided between two adjacent switching arms of each group, the width of which corresponds in the circumferential direction to the width of one switching arm of the other group plus a certain air gap.
• both the width of the gaps and the width of the shift arms decrease in the radial direction from the outside inwards, so that here in particular the load-bearing cross section of the shift arms in the radial inner region towards the support rings with a small size of the shift drum and / or if the total number of switching elements is large, it must be selected to be extremely small in order to be able to achieve this large number and / or small size of a switching drum.
• the load-bearing cross-section of the switching arms cannot, however, be arbitrarily reduced for reasons of stability, since otherwise the switching arms on the one hand lose their resilient properties and tend to break off if the switching positions of the associated switching elements change frequently. This in turn has the consequence that, given a predetermined number of switching elements, a certain size cannot be undercut or that for a given size, the number of switching elements is limited.
• the invention is based on the object of designing a time switch of the generic type in such a way that a larger number of switching elements can be provided to achieve shorter switching times while at the same time being small in size, while ensuring inexpensive, simple manufacture.
• a larger number of switching elements on the outer circumference of a shift drum of a timer can be provided for a given diameter of the shift ze are provided.
• the switching elements are designed to be narrower in the circumferential direction than in the case of a smaller number of switching elements, but their circumferential width is still approximately one to two millimeters in size, which permits safe and simple adjustment of the switching elements to their intended switching positions.
• the shift arms lie axially one behind the other along their entire radial length in the direction of the axis of rotation of the shift drum, they can also have a sufficiently large width and thus stability in the area of the radially inner shift ring due to the division into two groups in the circumferential direction several switching operations are also permitted without the switching arms being damaged.
• Basic arrangement of the shift arms can have at least partial overlap in the radially inner region of the shift ring, so that a larger number can be provided than is the case with the previously known shift drums.
• the switching ring is divided into two separate support rings according to the invention.
• the switching elements are divided into a first and a second group of the same number, the first group of these switching elements being combined with the first Support ring and the second group of these switching elements is connected to the second support ring via the switching arms.
• the switching ring is now formed by stacking the two support rings. In this superimposed, assembled position of the two support rings, the switching elements of the first and second groups are in the same switching position in a common plane which is approximately at right angles to the axis of rotation of the switching drum. The distances between the switching elements and their circumferential width is chosen such that the switching elements of the first group and the second
• these switching arms are at least axially spaced from one another, at least in the radially outer region of the switching elements, which is dimensioned such that the switching arms of the first group and the second group cannot interfere with each other during the switching process.
• the switching arms assigned to the two switching rings can also have an axial distance from one another in the radially inner region lying towards the switching ring. However, this is not absolutely necessary.
• the configuration according to the invention thus makes it possible to produce a shift drum with an extremely small diameter, which is equipped, for example, with 96 shift elements. at one full revolution of the shift drum by 360 ° per day, shifting operations can be switched every quarter of an hour. With shift drums of comparable size, half-hour switching operations have so far been possible, since only a maximum of 48 switching elements could be provided there. On the other hand, if only 48 switching elements were provided in the shift drum according to the invention, the shift drum according to the invention and thus the entire associated timer could be made significantly smaller, so that use even with limited space at the place of use, for example in a control cabinet, is possible.
• the switching arms of the first group and the second group alternately extend in the circumferential direction from the switching ring.
• the switching arms for example of the first group of switching elements, are inclined in one axial direction out of this common plane, while the switching arms of the second group are axial in the radial direction in the opposite direction are inclined.
• the swivel arms lie axially one behind the other in the axial direction in the region of the two support rings.
• the individual switching elements can be connected to the respectively assigned radially outer ends of the switching arms via approximately V-shaped support brackets lying next to one another in the circumferential direction. This achieves a radially flexible connection of the switching elements via the respectively assigned switching arm to the associated support ring. Due to this radial flexibility, a radially inwardly directed latching lug can be arranged on the switching elements according to claim 3, via which the switching elements are held in a latching manner in their respective switching position on a bearing housing of the switching drum. In other words, due to the V-shaped mounting bracket, the switching elements can be deflected in a spring-elastic manner radially for engagement or disengagement on the bearing housing.
• the configuration according to claim 4 achieves an extremely dimensionally stable configuration of the switching arms, since these, together with the support brackets, have an essentially constant width over the entire radial length in the circumferential direction.
• the overlap in the radially inner region of the support rings or the switching ring is extremely large, while it is zero in the radially outer region of the support bracket, so that the support bracket together with the Find space next to each other on switching elements attached radially on the outside in the circumferential direction.
• the guide webs arranged on the outer circumference of a housing cover of a bearing housing, the number of which corresponds to the number of switching elements, ensure that the switching elements are carried along in the exact position in the circumferential direction when the switching drum rotates.
• a locking element is provided between two guide webs, which are adjacent in the circumferential direction, with which the respectively assigned locking lug of a switching element can be positively engaged, lockingly.
• the distance between two adjacent guide webs corresponds approximately to the circumferential width of a latching lug of a switching element, so that precise guidance of the switching elements in the circumferential direction between the guide webs is ensured.
• This also has the effect, inter alia, that the switching operations brought about by the time switch or switching elements can be set extremely precisely in terms of time.
• the configuration according to claim 7 enables a precise, coaxial mounting of the two support rings to the bearing housing. enough.
• the first support ring has a circumferential first bearing web projecting towards the housing cover, by means of which the first support ring fits in a fitted manner into a circumferential first annular groove of the housing cover.
• the second supporting ring has a circumferential, second bearing web projecting towards the base housing, by means of which it fits into a corresponding circumferential second annular groove of the base housing in the assembled state.
• the support rings can be freely positioned in the circumferential direction, so that they can be aligned in a simple manner with the latching lugs of their switching elements on the spaces between the guide webs of the bearing housing.
• the ring grooves are arranged concentrically to the axis of rotation of the shift drum in the bearing housing, while the circumferential bearing webs are arranged correspondingly concentrically to the support rings.
• the two support rings can also have such a positive connection with one another and, for example, only one of the support rings in the bearing housing is mounted in a corresponding annular groove in the housing cover or the base housing.
• bearing webs on the support rings and the ring grooves can also be reversed.
• the configuration according to claim 8 ensures extremely simple assembly of the bearing housing.
• the bearing cover is centered in the assembled state and fastened in a rotationally fixed manner to the base housing and held firmly by a snap-in connection on the base housing.
• the time scale provided according to claim 9 on the circumferential outer surface of the base housing and on the axial outer surface of the housing cover permits variable use of the shift drum according to the invention in different time switches for different purposes.
• the scale on the outer surface is the time and programming scale, which is usually visible when installed and is usually used to program and set a timer.
• the time scale on the axial outer surface of the housing cover serves as a control option for settings that have already been made when the timer is removed.
• the configuration according to the invention provides a time switch in which the number of switching elements can be selected at least so large that, for example, a switching process can be effected every quarter of an hour without the switching roller having to be made larger in diameter to arrange the individual switching elements. than is the case with shift drums which, for example, only perform shifting operations every half hour can work. Furthermore, the shift drums can be made considerably smaller in diameter for a given number of operations than in the prior art known to date.
• Fig. 1 shows a partial section of a first and second
• FIG. 2 shows the assembled support rings from FIG. 1 in a top view II from FIG. 1;
• FIGS. 1 and 2 shows a perspective partial section of a housing cover, a base housing and the two support rings from FIGS. 1 and 2;
• FIG. 4 shows a partial view IV from FIG. 5 of the housing cover from FIG. 3;
• FIG. 5 shows a section V-V from FIG. 4
• FIG. 6 shows a partial view VI from FIG. 7 of the base housing from FIG. 3;
• Fig. 7 shows a section VII-VII from FIG. 6;
• 8 shows a section through the shift drum according to the invention with its shift elements located in different shift positions;
• FIG. 9 the shift drum from FIG. 8 with shift elements in further different shift positions
• Fig. 10 is a shift drum with two support rings in section, with a further arrangement of the shift arms on the support rings.
• first support ring 1 which, in the position shown, simultaneously forms the upper support ring
• This first support ring 1 is assigned a second, lower support ring 2, wherein both support rings 1 and 2 together form a switching ring 3 (FIG. 2) in the assembled state.
• several switching elements 4 are provided on the outer circumference of the upper support ring 1, which are connected to the first support ring 1 via the switching arms 5.
• approximately V-shaped support brackets 7 are provided between the respective radially outer end sections 6 of the switching arms 5 and the associated switching elements 4, which are connected in one piece to the switching arms 5 and the switching elements 4 are.
• the switching arms 5 are arranged, starting from the first support ring 1 and extending obliquely from bottom to top to a horizontal plane defined by the first support ring 1.
• the switching arms 5 are arranged on the outer circumference of the first support ring 1 approximately in the region of its circumferential lower edge 9.
• the lower, second support ring 2 also has several
• Switch elements 10 which are also integrally formed on the second support ring 2 via a switch arm 11 and a support bracket 12.
• the support ring 2 also has, in the region of its peripheral outer edge, a vertically downward, peripheral bearing web 14, the functioning of which will be explained in more detail below.
• the switching elements 4 and 10 of the two support rings 1 and 2 are spaced apart from one another in the circumferential direction, their circumferential distance being dimensioned such that the two support rings 1 and 2 with their switching elements 4 and 10 can be pushed into each other until the two support rings 1 and 2 are in direct contact.
• Fig. 2 shows a plan view II, in which the support rings 1 and 2 are pushed together. It can be seen from FIG. loaned that in this position the corresponding associated switching elements 4 and 10 are alternately positioned in the circumferential direction next to each other almost without play. Furthermore, it can be seen from Fig. 2 that the switching arms 5 and 11 in the radially inner region to the two
• the switching arms 11 of the support ring 2 which are "below" the switching arms 5 of the support ring 1 in the plan view of FIG. 2, are hatched.
• the switching arms 5 and 11 lie alternately next to one another in the circumferential direction.
• the carrying brackets 7 and 12 which are arranged between the outer end sections 6 and 13 of the respectively associated switching arms 5 and 11 and the respectively associated switching element 4 and 10.
• the switching arms 11, starting from the second support ring 2, run obliquely downward to a horizontal plane defined by the second support ring.
• the switching arms 5 and 11 lie directly one behind the other in the radially inner region of the support rings 1 and 2 in this axial direction, the switching arms can, despite the partial overlap of the switching arms 5 and 11 in the radially inner region towards the switching ring 3 in the direction of the double arrows 16 and 17 (Fig. 1) can be pivoted within certain limits for setting their switching positions.
• the diverging course of the switching arms 5 and 11 is chosen so that the switching elements 4 and 10 can be brought into a desired upper and lower end position in order to be able to effect corresponding switching operations of a time switch.
• the two V-shaped support brackets 7 and 12 of the switching elements 4 and 10 are designed differently.
• the radially inner leg 7/1 of the support bracket 7 is longer than the inner leg 12/1 of the support bracket 12. rende course of the switching arms 5 and 11 balanced so that the switching elements 4 and 10 can be positioned in the assembled state of the two support rings 1, 2 in a common plane defined by the support rings 1, 2, without the switching arms 5 and 11 hinder each other.
• FIG. 3 shows the two support rings 1 and 2 in a perspective sectional view, each of the support elements 1 and 2, for example one of the switching elements 4 and 10 with the associated support bracket 7 or 12 and the switching arm 5 or molded thereon in one piece. 11 is shown. Furthermore, as can be seen in FIG. 3 in thin phantom lines, it can be seen that in the case of support rings 1 and 2 lying against one another, the switching arms 5 and 11 lie completely axially one above the other, starting from their respective support rings 1 and 2. The two switching arms 5 and 11 can touch in their radially inner end regions approximately in the parting plane 18 of the two support rings 1 and 2. In the neutral center position of the two switching elements 4 and 10 with their, also shown in FIG. 3
• FIG. 3 shows a circular, approximately disc-shaped bearing cover 20, which together with a base housing 21 forms a bearing housing 22 in the assembled state, in which the two support rings 1 and 2 are received.
• the bearing cover 20 has on its underside 23 a circumferential annular groove 24 into which the first support ring 1 can be inserted in a suitable manner.
• the annular groove 24 is arranged concentrically with the bearing cap 20.
• the bearing cover 20 is provided with a circumferential web wall 26 directed vertically downwards towards the first support ring 1, which engages in the two V-shaped support brackets 7 and 12 of the two switching arms 5 and 11 in the assembled state.
• a plurality of guide webs 28 are provided on the outer cylinder wall 27 of this circumferential web wall 26, which are of identical design and each have an approximately circular-arc-shaped outer surface 29. The number of these guide webs 28 corresponds to the total number of switching elements 4 and 10, which, as already mentioned in relation to FIG. 2, are likewise distributed uniformly around the circumference.
• switching elements 4 and 10 each have a radially inward locking lug 30 and 31, the circumferential width corresponds to the clear distance between two adjacent guide webs 28, so that the switching elements 4 and 10 in the assembled state their locking lugs 30 and 31 between two adjacent guide webs 28 are fixed in their circumferential position.
• a latching element 32 is provided between two adjacent guide webs 28, by means of which the respective switching element 4 or 10 with its latching lug 30 or 31 is held in a latching manner in one of its switching positions.
• the V-shaped, spring-elastic support bracket 7 and 12 is provided in order to enable the switching elements 4 and 10 with their switching lugs 30 and 31 to be snapped onto the locking elements 32.
• This support bracket 7 or 12 allows each of the switching elements 4 or 10 to be deflected in the radial direction in a spring-elastic manner, so that the switching element 4 or 10 on a switching movement, for example from an upper switching position to a lower switching position, on the respectively assigned latching element 32 can engage and is held in the newly set switching position.
• the base housing 21 has an approximately cylindrical, circumferential outer wall 35 on its outer circumference, which is provided in its lower end region with a circumferential toothing 36 which serves to drive the base housing 21.
• a circumferential toothing 36 which serves to drive the base housing 21.
• the base housing 21 has a circumferential second annular groove
• the approximately horizontally extending intermediate wall 39 is provided in its outer end region with an upwardly open, approximately U-shaped, circumferential recess 40, into which the support brackets 7 and 12 protrude adjustably in the assembled state.
• the bearing cover 20 To connect the bearing cover 20 to the base housing 21, four hook-shaped locking segments 41 are provided on the underside 23 of the bearing cover 20 in the present exemplary embodiment, which can be inserted into corresponding openings 42 in the base housing 21.
• the latching segments 41 are each provided with a radially outwardly directed latching strip 43 which, in the assembled state, suitably engages behind a corresponding radially outwardly directed shoulder 44 of the respectively associated opening 42.
• This snap connection between the bearing cover 20 and the base housing 21 ensures extremely simple assembly. Furthermore, the dimensions in the circumferential direction of the locking segments 41 and the respectively associated opening 42 are matched to one another in such a way that the bearing cover 20 is connected to the base housing 21 in the circumferential direction in the correct position in the assembled state. 4 to 7, the bearing cover 20 and the base housing 21 are shown on the one hand in plan view and on the other hand in section. As can be seen from FIG. 4, a time scale in the form of a 24-hour dial can be provided on the round end face 49 of the housing cover 20, on which the desired switching times and the correct time of a time switch can be set and read on the one hand. Instead of such a 24-hour division, a 7-day division of the dial or, depending on the desired use of a timer, a different division can also be provided.
• the guide webs 28 are arranged evenly distributed over the circumference and are also identical in their width or in their radial depth.
• the locking elements 32 are arranged between the guide webs 28 and, as already mentioned above, the respective switching elements 4 and 10 with their locking lugs 30 and 31 are assigned to them.
• the circumferential width of the receiving slots 45 formed between the guide webs 28 corresponds approximately to the thickness of the radially inwardly directed latching lugs 30 and 31, so that these latching lugs 30 and 31 are received in a radially and axially adjustable manner between two adjacent guide webs 28 with almost no play , As can be seen from the combination of the representations from FIGS.
• the housing cover 20 is approximately disk-shaped as a plate and has a central, cylindrical opening 46.
• This central, cylindrical opening 46 is used for concentrically mounting the housing cover 20 on a corresponding bearing cylinder 47 of the base housing 21, which projects above the intermediate wall 39 of the base housing 21 (FIG. 7). Accordingly, the outer dimensions of the bearing cylinder 47 are matched to the diameter of the cylindrical opening 46 of the housing cover 20.
• FIGS. 6 and 7 a total of four openings 42 are provided, the right opening 42 of FIG. 7 also corresponding to the fourth opening not shown in FIG. 6, since the section along line VII -VII is selected.
• the openings 42 are also distributed uniformly on the circumference, their dimensions being matched to the dimensions of the locking elements 41 of the housing cover 20 in such a way that assembled state, the latching elements 41 engage in the respectively associated openings 42 of the base housing 21 and thus the housing cover 20 is precisely aligned, in particular in the circumferential direction with respect to the base housing 21.
• the toothing 36 can also be seen, which is located in the region of the lower end section of the circumferential outer wall 35 of the base housing 21.
• the outer lateral surface 48 of this boundary wall 35 also has a time scale corresponding to the hour scale from FIG. 4. This is not explicitly shown in the drawing, but corresponds to the time scale of the time scale of the housing cover 20 already mentioned in relation to FIG. 4.
• This time scale on the outer surface 48 represents the main scale, on the basis of which the program and time settings of a time switch are generally carried out.
• corresponding time settings can be read and checked both on the circumference of the switching drum 50 (FIGS. 8, 9) and on the face, in particular when the timer switch is removed, without the switching drum 50 being in a specific position Position must be rotated in order to be able to read the corresponding values on the time scale of the lateral surface 48.
• Fig. 8 shows in the left half of the drawing, the switching elements 4 and 10 in an identical, upper switching position, in which they are latched to them with their locking lugs 30 and 31 above the respectively assigned locking elements 32.
• the two switching arms 5 and 11 in this switching position of the two switching elements 4 and 10 starting from their associated support rings 1 and 2, diverge from one another, so that these in the radially outer region of their respective outer end sections 6 and 13 have an axial distance in the direction of the axis of rotation 51 of the shift drum 50 from one another.
• the two switching elements 4 and 10 are shown in an identical, lower switching position, in which they are engaged with their locking lugs 30 and 31 below the locking element 32.
• this switching position too, the two switching arms 5 and 11, starting from the associated support rings 1 and 2, diverge from one another, so that these, likewise with their radially outer end sections 6 and 13, are axially spaced apart in the direction of the axis of rotation 51 of the switching drum 50.
• This axial distance in these two switching positions shown in Fig. 8, which is achieved by the diverging course of the switching arms 5 and 11, is dimensioned such that the two switching arms 5 and 11 can not interfere with each other even in the opposite switching position of the switching elements 4 and 10.
• the switching elements 4 and 10 are each shown in different switching positions. It can be seen in the left half of the drawing that the second switching element 10 is in the upper switching position, as has already been shown in FIG. 8. Accordingly, the second switching element 10 is latched with its latching lug 31 above the latching element 32 of the housing cover 20. In contrast, the first switching element 4 is shown in a lower switching position, so that it engages with its locking lug 30 (shown in dashed lines) below the associated locking element 32 (not shown in FIG. 9). is locked. It can be clearly seen that the support brackets 7 and 12 are located one behind the other in the circumferential direction in these different switching positions. In contrast, the two switching arms 5 and 11, with their radially outer end sections 6 and 13, continue to have an albeit minimal axial distance from one another in the direction of the axis of rotation 51 of the switching drum 50.
• Fig. 9 shows in the right half of the drawing the switching elements 4 and 10 in an opposite switching position to the switching position of the left half of the drawing.
• the first switching element 4 is in an upper switching position, in which it is latched with its latching lug 30 (shown in broken lines) above the associated latching element 32, which is not visible in the drawing.
• the second switching element 10 assumes a lower switching position and is accordingly with it Latch 31 engaged below the associated locking element 32.
• the divergence angle between the two switching arms 5 and 11 is greater than in the switching positions of the left half of the drawing in FIG. 9 and the two switching positions in FIG. 8.
• the two end sections 6 can also and 13 of the two switching arms 5 and 11 during the switching process of the switching elements 4 and 10 in the switching position of the right half of the drawing of FIG. 9 do not hinder each other.
• Mutual hindrance of the support brackets 7 and 12 is also excluded in this switching position, since, as already explained for the left half of the drawing, they lie one behind the other in the circumferential direction and have a spacing, albeit minimal, from one another.
• Fig. 10 shows a further embodiment of a shift drum 50/1, which also has a bearing housing 22/1, which also consists of a housing cover 20/1 and a base housing 21/1.
• the associated switching elements 10 and 4 are formed on the two support rings 1 and 2, in each case axially offset, in the region of the circumferential bearing web 8 or 14. From Fig. 10 it is also clear that the corresponding switching arms 5/1 and ll / l are also in the opposite switching position of their associated switching elements 10 and 4 cannot hinder each other, since in each switching position their outer end sections 6/1 and 13/1 are axially spaced from one another in the direction of the axis of rotation 51/1 of the switching drum 50/1.
• the housing cover 20 or 20/1 is held in place by means of its latching elements 41 or 41/1 in the corresponding openings 42 or 42/1 and thus is firmly held. Furthermore, it can be seen that for concentric alignment of the housing cover 20 or 20/1, this is accommodated with its cylindrical, central opening 46 or 46/1 on the bearing cylinder 47 or 47/1.
• the switching arms 5, 11 or 5/1, ll / l can also have a sufficient width in the radially inner area towards the associated support rings 1 and 2 Be provided circumferential direction, so that an extremely high stability of these switching arms 5, 11 and 5/1, 11/1 is ensured even in the radially inner region of the support rings 1 and 2.
• the switching arms 5 and 11 or 5/1 and ll / l can at least partially overlap in this radially inner region in the circumferential direction without a switching operation of the switching elements 4, 10 being impeded.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Gear-Shifting Mechanisms (AREA)
• Electrophonic Musical Instruments (AREA)
• Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
• Feeding And Guiding Record Carriers (AREA)
• Spinning Or Twisting Of Yarns (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Switches With Compound Operations (AREA)
• Transmission Devices (AREA)

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• 1999
  • 1999-11-30 DE DE19957506A patent/DE19957506B4/de not_active Expired - Lifetime
• 2000
  • 2000-11-28 ES ES00993555T patent/ES2290066T3/es not_active Expired - Lifetime
  • 2000-11-28 EP EP00993555A patent/EP1147532B1/de not_active Expired - Lifetime
  • 2000-11-28 CN CNB008031827A patent/CN1198306C/zh not_active Expired - Lifetime
  • 2000-11-28 DE DE50014709T patent/DE50014709D1/de not_active Expired - Lifetime
  • 2000-11-28 KR KR10-2001-7008989A patent/KR100458899B1/ko not_active Expired - Fee Related
  • 2000-11-28 HK HK02103072.3A patent/HK1043431B/zh not_active IP Right Cessation
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  • 2000-11-28 PL PL349525A patent/PL197482B1/pl unknown
  • 2000-11-28 WO PCT/EP2000/011879 patent/WO2001046976A1/de active IP Right Grant
  • 2000-11-28 CZ CZ20012504A patent/CZ298083B6/cs not_active IP Right Cessation
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