Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C1/00—Chairs adapted for special purposes
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C1/00—Chairs adapted for special purposes
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
  • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C1/00—Chairs adapted for special purposes
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
  • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C1/00—Chairs adapted for special purposes
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
  • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
  • A47C1/03274—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs of torsion type
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C1/00—Chairs adapted for special purposes
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
  • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs

Definitions

• the invention relates to a mechanism for an office chair, with a movable actuator, the position of which changes during a movement of the office chair mechanism and the change in its position, the movement characteristic of the office chair mechanism is changed.
• the invention relates to a device for use in such office chair mechanism and a method for changing the movement characteristics of an office chair mechanism with a movable actuator, the position of which changes during movement of the office chair mechanism and its change in position, the movement characteristic of the office chair mechanism is changed.
• an actuating element such as a handle or a crank handle, a setting between "Hard” and “soft”, depending on whether the user of the office chair is a heavy or light person.
• Movement characteristic of the office chair mechanism in particular, for example, the pivotal resistance of the backrest, often associated with a relatively large amount of force.
• An object of the present invention is therefore to provide a technique by means of which a particularly easy change of the movement characteristics of an office chair mechanism, in particular, for example, the pivotal resistance of the backrest of an office chair, is possible.
• the mechanism such that the actuating element is in operative connection with a functional element whose position changes during a change in position of the actuating element during a movement of the office chair mechanism, wherein changes in a change in position of the functional element at least one property of the change in position of the actuating element
• a core idea of the invention is to provide the actuating element with a positionally variable functional element whose positional change on the one hand depends on the change in position of the actuating element, and on the other hand has an influence on the change in position of the actuating element.
• the invention thus provides a self-adjusting, dynamic system for changing the movement characteristics of an office chair mechanism, in particular, for example, to change the
• Pivoting resistance of the backrest of an office chair created, which differs from the systems known from the prior art in that the adjustment of the movement characteristics, in particular for example the pivoting resistance, not arbitrarily by the hand of the user, but always automatically and according to the structural specifications of Mechanics done.
• the advantage here is that a particularly easy change of the movement characteristics, in particular, for example, the pivoting resistance, is possible.
• the invention can be used in numerous office chair mechanisms, regardless of whether it is a synchronous or asynchronous or another mechanical form.
• the invention is applicable to a spring mechanism having at least one spring element, which is in operative connection with a backrest support of the office chair and the pivoting resistance of the backrest support in a pivoting from a starting position into a
• Swivel position determined.
• the spring mechanism on the actuating element the position of which changes when pivoting the backrest support and the change in its position, the voltage of the at least one spring element is changed, wherein the actuating element is in operative connection with the functional element, its position in a change in position of the actuating element changed during a pivoting of the backrest support.
• the manner of changing the movement characteristic of the office chair is adjustable by the user.
• at least one property of the change in position of the functional element by means of an adjusting device is adjustable.
• the adjustable property of the change in position of the functional element is preferably the type and / or the possible extent, ie the extent of the change in position. It may, for example, the manner of movement of the functional element, including the
• Movement shape such as rotation or translation, or the shape of the movement curve can be adjusted.
• the possible extent of the change in position can be determined by setting a lower limit and / or an upper limit and indicates a range of motion in which the functional element can move. It is advantageously not only the extent of the game room, so the width of the area, but also the location of the area adjustable. For the caused by the change in position of the functional element change in position of the actuating element applies accordingly.
• the spring mechanism operatively connected to the backrest support of the office chair can be connected to the backrest support both directly or indirectly.
• the spring mechanism is preferably connected via the seat support as a coupling element with the backrest support.
• the concrete design is dependent on the structure of the office chair and the type of mechanics (synchronous mechanism, asynchronous mechanism).
• the voltage of the at least one spring element is changed according to the invention.
• any types of spring members may be used for the purposes of the present invention. Be particularly advantageous because of their simplicity and robustness coil springs in the form of
• the actuating element is preferably designed as an integral part of the leg spring.
• a spring leg of the leg spring is used as an actuating element.
• a lever arm acting on the helical spring via a coupling device is preferably used as the actuating element.
• the actuating element is preferably an integral part of the spring, in particular an end provided hook or a hanger.
• an embodiment of the invention in which the functional element is a variable-position mounted and directly acted upon by the actuating element rolling or sliding body, preferably in the form of a cylindrical bolt.
• the actuating element rolling or sliding body preferably in the form of a cylindrical bolt.
• the bearing required for the bearing of the functional element is preferably designed as part of the functional element.
• the bearing is preferably a rolling bearing, in particular in the form of a ball or needle bearing.
• other actuators and storage devices such as plain bearings, are used.
• the adjustment of the property of the change in position of the functional element takes place with the aid of an adjusting device, which preferably comprises a supporting and / or guideway for the functional element and an adjusting element for changing at least one property of the support and / or guideway.
• the support and / or guideway which may be formed for example by the bearing surface of a bearing block, is preferably variable in their inclination. From this variable property of the support and / or guideway depends on the position of the end position, up to the Functional element is movable when pivoting the backrest support.
• the functional element and / or the adjusting device is designed such that the setting of at least one property of the change in position of the functional element takes place without having to work against the spring force of the at least one spring element.
• the adjustment is in other words "powerless.”
• Federkrafseingnall not completely "powerless” perform, especially if it can be a particularly simple structural design and at the same time only very small spring forces must be overcome.
• a change in the spring force can be achieved with little effort and little effort.
• a change of the mechanism from a "soft" to a "hard” position is possible, for example, with two or three turns of a handwheel, while not working against the force of the at least one spring element of the spring mechanism or only to a very small extent.
• FIG. 1 is a perspective view of a mechanism according to a first embodiment of the invention with a leg spring
• 2 is a sectional view of the mechanism of FIG. 1 with "soft" adjustment of the pivoting resistance in a starting position
• FIG. 3 is a sectional view of the mechanism of FIG. 1 with "soft" adjustment of the pivoting resistance in a pivoting position
• FIG. 4 is a sectional view of the mechanism of Figure 1 with "hard” setting of the pivotal resistance in a starting position
• Fig. 5 is a sectional view of the mechanism of FIG. 1 with
• FIG. 6 is a perspective view of a mechanism according to a second embodiment of the invention with a helical compression spring
• Fig. 7 is a sectional view of the mechanism of FIG. 6 with
• FIG. 8 is a sectional view of the mechanism of FIG. 6 with "soft" adjustment of the pivotal resistance in a pivot position
• 9 is a sectional view of the mechanism of FIG. 6 with "hard” adjustment of the pivoting resistance in a starting position
• 10 is a sectional view of the mechanism of FIG. 6 with “hard” adjustment of the pivotal resistance in a pivot position
• FIG. 11 is a sectional view of a mechanism according to a third embodiment of the invention.
• FIG. 12 is a detail view of the mechanism of FIG. 11 with
• FIG. 13 is a detail of the mechanism of FIG. 11 with
• FIG. 14 is a detail view of the mechanism of FIG. 11 with
• Fig. 16 is a perspective view of the bearing pin and bearing block as parts of all three shown
• 17 is a sectional view of a mechanism according to a fourth embodiment of the invention in a starting position
• 18 is a sectional view of the mechanism of FIG. 17 with "soft" adjustment of the pivotal resistance in a pivot position
• Fig. 19 is a sectional view of the mechanism of Fig. 17 with "hard” setting of the pivotal resistance in a pivot position.
• FIG. 1 a first embodiment of the invention is illustrated.
• the figures show parts of a pivot mechanism 1 for an office chair, with only the structural elements required for the understanding of the present invention are shown.
• the pivoting mechanism 1 comprises a base support 2 with a cone seat 3 for the upper end of a chair column, a seat support 4 and a backrest support. 5
• the front end 6 of the base support 2 is connected to the front end 7 of the substantially horizontally arranged seat support 4 via a rotary joint 8, whereby the main pivot axis 9 of the mechanism 1 is formed, which extends transversely to the chair longitudinal direction 11.
• the rear end 12 of the seat support 4 is also pivotally connected to the backrest support 5 at bearing points 13.
• the backrest support 5 can be provided with a backrest, wherein neither the type of seat, nor the nature of the Backrest for the invention plays a role.
• the backrest support 5 is also articulated at its front end 14 to the base support 2.
• the backrest support 5 can at a leaning of a
• a spring mechanism 15 is provided, whose operation will be explained in detail below.
• the spring mechanism 15 comprises two leg springs 16, which are arranged cantilevered between the base support 2 and seat support 4 and are supported with their forwardly directed upper and lower spring legs 17, 18 respectively on the underside 19 of the seat support 4 and on a movably arranged bearing pin 22. In the starting position, the spring legs 17, 18 run almost parallel to one another and to the seat support 4.
• the bearing pin 22 is in the starting position between the lower spring legs 18 and the bearing surfaces 26 of a bearing block 32.
• the bearing surfaces 26 are concave.
• the bearing pin 22 has at its two ends bearings 27 in the form of ball bearings. The position of the rolling bearing 27 corresponds to the position of the bearing surfaces 26 of the bearing block 32nd Der
• Bearing block 32 preferably has lateral guide flanks (not shown), which serve for the lateral guidance of the bearing pin 22 on the bearing block 32 and thus ensure that the rolling bearings 27 of the bearing pin 22 always rest completely on the bearing surfaces 26.
• Bearing pin 22 is thus clamped between the straight bottom sides 28 of the lower spring legs 18 on the one hand and the concave bearing surfaces 26 of the bearing block 32 on the other.
• formed on the lower spring legs 18 abutment of the torsion springs 16 form two first
• the bearing pin 22 provided with the rolling bearings 27 is pressed forward by the moving lower spring legs 18 on the bearing surfaces 26 of the bearing block 32 ("scissor-type") At the same time, the lower spring legs 18 are pressed upwards by the bearing pin 22.
• the bearing pin 22 seeks an equilibrium position in this end position If it stops, see Fig. 3. Since the predetermined by the bearing surfaces 26 track of the bearing pin 22 comparatively flat is, the position of the lower spring legs 18 in the pivot position is flat.
• the shape and inclination of the bearing surfaces 26 is selected so that upon pivoting of the backrest support 5 by a load on the backrest, ie at a tension of the torsion springs 16, the bearing pin 22 is not pushed out of the bearing block 32 forward.
• the inclination of the bearing block 32 can now be changed with the aid of an adjusting wedge 34.
• a Verstellkeil 34 is pushed under the front end 33 of the bearing block 32, which is guided in a recess 35 of the base support 2 slidably.
• the bearing block 32 which is connected at its rear end 36 at a pivot point 37 to the base support 2, slides on a rising in the direction of the front chair end functional surface 30 of Verstellkeils 34 and is tilted about a pivot axis 38 in the pivoting direction 39 such that the Bearing surfaces 26 describe a relation to the starting position steeper path, cf. Fig. 4.
• the path of the bearing pin 22 is shortened forward in a pivoting of the backrest support 5.
• the balance occurs earlier.
• the distance between the first point of application 29 and the free end 41 of the lower spring leg 18 is greater, see. Fig. 5.
• the bearing pin 22 can no longer dodge the lower spring leg 18 to the same extent as was previously the case, as it prevents the now steeper track.
• the position of the lower spring leg 18 is comparatively steep.
• the angular movement of the lower spring leg 18 toward the upper spring leg 17 is in other words larger, which has an increased spring force and thus an increased swing resistance result.
• the adjusting wedge 34 is moved in the chair longitudinal direction 11 by means of an adjusting device which essentially comprises a threaded rod 42 mounted in the base support 2 with handwheel 43, on which an axially displaceable wedge nut 44 is arranged.
• Verstellkeil 34 and wedge nut 44 are connected to each other via a positive guide 45, which in the embodiment shown here in the manner of a Dovetail guide is executed.
• the inclination of the corresponding contact surfaces 46 of adjusting wedge 34 and wedge nut 44 lead to a deflection of the linear movement of the wedge nut 44 in the transverse direction by 90 degrees to a linear movement of the adjusting wedge 34 in chair longitudinal direction eleventh
• the manner in which the adjusting wedge 34 is moved may differ from the embodiment shown here.
• other transmission and transmission means can be used.
• the spindle drive shown with a comparatively coarse thread is particularly advantageous, since it is not only very robust and thus less susceptible to error, but at the same time also very few revolutions of the handwheel 43 are required to achieve a noticeable change in the pivoting resistance.
• the distance of the first point of application 29 to the spring axis 25 changes continuously until the bearing pin 22 has reached its end position determined by the inclination of the bearing surfaces 26.
• the spring tension of the torsion springs 16 changes with the pivoting and the pivoting of the backrest support 5. So that a heavy person feels an increased ground resistance, the bias of the torsion springs 16 is increased, namely by the pivot point 37 of the bearing block 32 is arranged off-center ,
• the margin is defined in which the lower spring legs 18 can move to change the tension of the leg springs 16.
• the margin of the bearing pin 22 In a "light” setting the margin of the bearing pin 22 is increased, resulting in a relatively small change in position of the lower spring legs 18 results, while in a “heavy” setting the scope of the bearing pin 22 is reduced.
• the spring mechanism 15 is allowed at a "heavy” setting to change the position of the lower spring legs 18 stronger.
• FIGS. 6 to 10 illustrate a further exemplary embodiment of the invention in which, instead of two leg springs 16, a spring mechanism with two helical compression springs 48 is used.
• Fig. 6 only the spring mechanism and the adjusting mechanism is shown. However, the arrangement of these structural elements corresponds substantially to the arrangement shown in Figures 1 to 5. Kinematically, the two embodiments correspond largely.
• Part of the spring mechanism is in this case a centrally disposed lever arm 49, which serves as an actuating element in the context of the invention and a suitable connecting element, here in the form of a hexagonal shaft 51, rotatably connected to two retaining legs 52, 53 is connected.
• the lever arm 49 has in the seat longitudinal direction 11 forward. Its bottom 28 extends in the starting position substantially horizontally.
• Actuating elements in the form of the two lower spring legs 18 are used, the actuating element is not an integral part of the spring elements, but acts via a coupling device on the springs of the spring mechanism, which is described below.
• the one holding leg 52 is connected via a hinge 59 with a spring plate 54 which defines the movable end 55 of the compression spring 48 and on which the compression spring 48 is supported.
• the opposite fixed end 56 of the compression spring 48 is articulated at the connection point 8 of the base support 2 and seat support 4 and thus coupled to the main pivot axis 9 of the mechanism 1.
• the compression spring 48 is formed as a hollow cylinder guide means 61 is parallel with a guided guide rod 58 inserted therein, which prevents kink protection that the compression spring 48 kinks when upsetting.
• the guide device 61 forms a spring plate 57 at the fixed end 56 of the compression spring 48.
• the guide rod 58 is movable with the spring plate 54
• the compression spring 48 does not necessarily have on the main pivot axis. 9 be attached.
• the fixed end 56 may also be fixed solely to the base support 2 or the seat support 4.
• the other retaining leg 53 is - which is not shown for reasons of clarity in Fig. 6 - also connected via a rotary joint with the spring plate of a second compression spring which is completely identical in type and arrangement with the compression spring 48 and symmetrically on the other side lying of the lever arm 49 is also part of the spring mechanism 15.
• the hexagonal shaft 51 of the spring mechanism 15 is on
• Pivots 60 rotatably mounted on the seat support 4.
• a pivoting of the also connected to the seat support 4 and hinged to the base support 2 backrest support 5 from a starting position see. Fig. 6, in a pivot position, cf. Fig. 7, in the pivoting direction 23 back down this movement is followed by the hexagonal shaft 51.
• the structural design is chosen such that in this case attached to the retaining legs 52, 53 rear spring plate 54 due to the coupling on the holding legs 52, 53 in
• FIGS 11 to 15 a third embodiment of the invention is illustrated.
• the figures show parts of a swivel mechanism 1 for an office chair.
• the actual backrest is indicated by broken lines.
• the backrest support 5 is connected via a link 62 to the rear end 12 of the seat support 4.
• the front backrest support end 14 is pivotally connected to the base support 2, which is connected at its front end 6 to the front seat support end 7 via a pivot joint 8.
• a bearing block 32 is 29enkbar mounted, in Fig. 11, the connection of the bearing block 32 and seat support 2 is not shown.
• the pivot axis 38 of the bearing block extends through a pivot point at the rear (upper) end 37 of the bearing block 32.
• the type of adjustment of the bearing block 32 may vary and is not here
• Spring element provided in the form of a coil spring 63.
• the helical tension spring 63 is mounted with its rear end of the spring 64, which is formed as Einhhurinate or open hook, centrally on a running between the two arms of the backrest support 5 transverse pin 65 which can be regarded as part of the backrest support 5.
• the spring 63 without an additional coupling element directly to the
• the front spring end 66 which is also designed as Einhhurinate or open hook, is connected to a bearing pin 22.
• the front end of the spring 66 serves as an actuator in the context of the invention.
• the bearing pin points - as in the above
• Backrest support 5 a comparatively weak (short) Dodge the bolt 22, with the result that the spring 63 is stretched more than before. In this "hard” setting, it is therefore more difficult for the user to pivot the backrest of the office chair to the rear
• the pivoting resistance is high
• the pivoting angle of the backrest support 5 is always the same here, as in the embodiments described above, independently from the position of the bearing block 32.
• the mechanism is constructed so that the actuator always moves the same. In Fig. 16, the intended for use in the office chair mechanism 1 device is shown in detail.
• It comprises the positionally variable functional element 22 in the form of a rolling and / or sliding body with two bearings 27 for rotational support of the functional element 22 and a bearing and / or guide track for the bearings 27, formed by two concave bearing surfaces 26 of the bearing block 32nd
• FIGS. 17 to 19 show parts of a swivel mechanism 1 for an office chair.
• the backrest support 5 is connected via a common link 67 both with the rear end 12 of the seat support 4, and with the rear end 68 of the base support 2 pivotally connected.
• the base support 2 is pivotally connected at its front end 6 to the front seat support end 7 via a second link 69.
• a bearing block 32 is 29enkbar attached on a construction element 70 of the seat support 2, a bearing block 32 is 29enkbar attached.
• the pivot axis 38 of the bearing block 32 passes through a pivot point at the front (upper) end 33 of the bearing block 32.
• the inclination of the straight bearing surface 26 of the bearing block 32 in this case can be varied by means of an adjusting element (not shown).
• the rear bearing block end 37 can be pivoted upwards in the direction of the seat carrier 4, which leads to a "hard” adjustment of the mechanism, as described in more detail below:
• the bearing surface 26 can also be concave as in the previously described embodiments or convex.
• a spring element provided in the form of a coil spring 63.
• the fferenzugfeder 63 is with its front end of the spring 66, which is designed as Einhhurinate or open hook, at one between
• the rear spring end 64 which is also designed as Einhhurinate or open hook, is connected to a bearing pin 22.
• the rear spring end 64 serves as an actuating element in the context of the invention.
• the bearing pin 22 has - as in the embodiments described above - at its two ends bearings 27 in the form of ball bearings and rests with these on the bearing surface 26 of the bearing block 32.
• the bearing pin 22 is pivotally connected to a coupling element 72.
• the bearing pin 22 is mounted in the one end of the coupling element 72.
• the opposite end of the coupling element 72 is pivotally connected to the seat support 4 at a pivot point 73.
• seat support 4 In a pivoting of the backrest support 5 in the pivoting direction 23 backwards down the coupled to the backrest support 5 seat support 4 also pivots in the same manner. This results in a movement of the articulation point 73 of the coupling element 72 on the seat support 4, which also changes the position of the bearing pin 22 and thus the position of the coil spring 63 via the coupling element 72.
• the seat support 4 thus serves together with the coupling element 72 for the indirect coupling of the spring mechanism 15 to the backrest support fifth
• the inclination of the bearing surface 26 is set in the starting position, ie when the backrest is not pivoted. In the best possible "soft" setting, the rear end 37 of the bearing block 32 rests against the base support 2.
• the angle of the bearing surface 26 to the horizontal is approximately 60 °, see FIG.
• the pivot angle of the backrest support 5 is here, as in the embodiments described above, always the same, regardless of the position of the bearing block 32nd
• the design of the construction elements 70, 71 and the arrangement of the pivot points 38, 65 are also variable in the embodiment described above for setting the desired pivoting characteristic, as the shape of the cam track 26 for the bearing pin 22 and the length and arrangement of the coupling element 72nd
• the bearing block 32 can, however, in principle - depending on the application - be permanently installed, i. not swiveling or tilting. In such a case, however, the adjustability of the at least one property of the change in position of the bolt 22 would no longer exist. However, even in this case, the wear of the mechanism 1 due to the spring-biased without sliding friction spring mechanism 15 would be reduced.
• the position of the bearing of the bearing block 32, so the position of the pivot axis 38 may vary. The more distant the bearing point from the axis of the bolt 22, the more bias can be achieved when adjusting the spring mechanism 15. The closer the pivot axis 38 moves to the position of the bolt 22, the less bias voltage can be generated by the spring mechanism 15.
• the web may in the simplest case have the shape of a circular arc section. Variations (initially flat, later steeper etc.) are possible and have a different dynamic spring behavior. Depending on the customer's requirements, the mechanics can show degressive, linear or progressive behavior. In other words, not only by adjusting the inclination of the bearing block 32 is it possible to change the movement characteristic of the mechanism. Also by the change of the concavity of the bearing surface 26, so the shape of the curved path, this is possible.
• the curved path can also be a straight line, cf. the embodiment shown in FIGS. 17 to 19.
• Construction element 70 Construction element 71 Construction element 72 Coupling element

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• 2008
  • 2008-09-03 DE DE202008011703U patent/DE202008011703U1/de not_active Expired - Lifetime
  • 2008-09-03 DE DE102008045489A patent/DE102008045489A1/de not_active Withdrawn
• 2009
  • 2009-01-21 AT AT09713332T patent/ATE506876T1/de active
  • 2009-01-21 CA CA2716042A patent/CA2716042C/fr active Active
  • 2009-01-21 WO PCT/EP2009/000336 patent/WO2009103389A1/fr active Application Filing
  • 2009-01-21 JP JP2010547069A patent/JP5383710B2/ja active Active
  • 2009-01-21 DE DE502009000600T patent/DE502009000600D1/de active Active
  • 2009-01-21 US US12/918,888 patent/US8733839B2/en active Active
  • 2009-01-21 EP EP09713332A patent/EP2244605B1/fr active Active

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