KR101316715B1 - Retracting mechanism for an extensible part that is guided so as to be longitudinally movable in a furniture carcass - Google Patents

Abstract

A shrinkage mechanism 5 for an extensible portion 3 which is guided to be movable in the longitudinal direction in the furniture body 2 is disclosed. The contracting mechanism 5 comprises an energy reservoir, the energy reservoir having an extensible portion open, and the stored energy of the energy reservoir being released to extend the portion from the structurally predetermined pushing position of the extensible portion 3. (3) is tensioned when delivered as retractive force. The shrinkage mechanism 5 of the present invention uses a permanent magnet 6 made of magnetizable material and a permanent magnet system 6, 7 which encloses the opposite polarity member 7, or the second permanent magnet 7. In addition to the reservoir, it is implemented to be fed to increase the effective retraction force at a particular retracted position. One component 6, 7 of the permanent magnet system is mounted on the furniture body 2, while the other component 6, 7 is mounted on the extensible portion 3 so that it is extendable. The contact surfaces of the components extend perpendicularly to the direction of propulsion when they meet and when the tow portions movable in parallel with each other are pushed in when the part 3 is pulled out of the closed position, parallel to each other when the tow is pulled out of the closed position. It is possible to move.

Description

Retracting mechanism for retractable guided longitudinally displaced within the body of the furniture {RETRACTING MECHANISM FOR AN EXTENSIBLE PART THAT IS GUIDED SO AS TO BE LONGITUDINALLY MOVABLE IN A FURNITURE CARCASS}

The present invention relates to a retraction mechanism for a retractable guide that is displaceably guided in a longitudinal direction within a furniture body, the retracting mechanism having an energy reservoir that is deflected when the retract is opened, the stored energy of which is It is transmitted as retractive force from the predetermined pushing position to the traction.

Shrinkage mechanisms of the foregoing type are known in nature. By this retraction mechanism, some of which may be engaged with the damper, the retraction can be pulled into the final propulsion position within the furniture body without any further or additional force exerted from outside just before reaching the final propulsion position. . The energy reservoir which is deflected when the tow is pulled out is then released, and the stored energy is used to pull the tow into the final propulsion position within the furniture body.

Indeed, there are applications where it is desirable for the shrinking force to be temporarily improved. Thus, for example, it may be desirable to increase the retraction force so that the cover controlled by the guide means is pulled with the sealing action on the enclosure-like traction. This is true for certain types of dishwashers. However, an increase in retraction force may be used to allow the tow to be pressed by a correspondingly high force against the seal over multiple directions.

It is an object of the present invention to further develop a general-purpose contraction mechanism to the extent that pulling-out action is possible by applying a force that is increased in shrinkage force and considerably smaller than the effective contraction force.

This object, in addition to the energy storage, is provided for a permanent magnet system made of a magnetizable material and a permanent magnet system made of magnetizable material to improve the effective retractive force at a particular contraction position, and a permanent magnet system made of a second permanent magnet, said permanent magnet system One component of the assembly is assembled on the furniture body and the other component is assembled on the towing portion such that when the towing portion is pushed in the contact surface of the components moves perpendicular to the direction of propulsion they meet and In accordance with the invention, the tow portions can be displaced parallel to each other when pulled out of the closed position.

The advantage of this design is that when the tow is pushed in, it significantly increases the inherent force in the permanent magnet system to improve the overall action of the shrinkage mechanism. On the other hand, these increased retraction forces do not need to be overcome again for opening because the components of the permanent magnet system do not separate by falling apart from each other perpendicular to the contact surface; Rather, these contact surfaces are separated by displacing parallel to each other, in which case the force to open the traction is relatively low despite the high retraction force provided.

Further features of the invention form the subject matter of the dependent claims.

DESCRIPTION OF THE EMBODIMENTS Exemplary embodiments of the invention are illustrated in the accompanying drawings and described in more detail below.

1 is a schematic view showing a partial view of a furniture carcass with a pull-out part and a retracting mechanism guided displaceably in the longitudinal direction from the inside,

FIG. 2 is a partial view of the contraction mechanism viewed in a direction rotated 180 ° with respect to FIG. 1,

3 is a view corresponding to FIG. 1 but with a towing portion pushed further in the furniture than in FIG.

4 is a view corresponding to FIGS. 1 and 3, but with the pulling unit pushed in all directions;

FIG. 5 essentially corresponds to FIG. 3, but in which the towing portion is pulled back to the part which is out of the pushing position according to FIG. 4, FIG.

6 is a view corresponding to FIG. 5 but with the pulled portion further pulled out of a stationary state;

FIG. 7 corresponds to FIG. 6, but with the towing portion pulled further out of the rest state and the components of the permanent magnet system being separated, FIG.

8 is a partial view of the contraction mechanism viewed in a direction rotated 180 ° with respect to FIG. 7,

FIG. 9 is a view seen from the direction of arrow IX in FIG. 1,

10 is a schematic view showing a partial plan view of a furniture body having a tow portion guided displaceably in the longitudinal direction from within, according to a further exemplary embodiment according to the present invention;

11A-11D are vertical views of a partial cross section through the tow and rear end regions of the furniture body in various positions.

The cabinet unit shown schematically has a furniture body 2, which is indicated as a whole in the figure and likewise only indicated, and a retractable part 3 which is displaceably mounted in the longitudinal direction on the furniture body.

The retractable part 3 is connected to the furniture body 2 in a known manner and has a contraction mechanism 5 which is displaceable in the longitudinal direction by the guide rail 4 and is integrated, in this case an essentially known manner. As such, the energy store is deflected or pulled from the furniture body 2 when the tow 3 is opened, and the stored energy of this energy store is released again from the structurally predetermined pushing position of the tow 3. And as a contracting force to the traction part 3.

Since the structure and function of such a contraction mechanism 5 are known in nature, the contraction mechanism is not shown or described in detail herein.

In addition, in EP 0 391 221 B1, the corresponding shrinkage mechanism has been shown and described in detail with respect to its function. In this regard, EP 0 391 221 B1 of the content of the post on the shrinkage mechanism forms part of the content of the present application.

Within the meaning of the present invention, a permanent magnet system is provided in addition to the known shrinkage mechanism 5 with an energy reservoir, in order to enhance the contractive force which may act on the traction 3, which is magnetizable. A permanent magnet 6 made of material and a reversed element 7, or an additional permanent magnet 7. In each case one component of the permanent magnet system is assembled here on the furniture body 2, and each other component is assembled on the pull 3.

In the exemplary embodiment shown, the permanent magnet 6 is located on the furniture body 2 and the opposite polarity member 7 or further permanent magnet 7 is pulled out via the pivot lever 8. )

The pivot lever 8 is mounted on the pull 3 so that it can be pivoted about the pin 9. This bearing point is located in the floor area of the furniture body 2, while the opposite polar member 7 (or additional permanent magnet 7) fixed to the other end of the lever 8 is the furniture body. (2) Like the permanent magnet 6 assembled on itself, it is arranged in the upper region of the furniture body 2.

The two mutually opposing contact surfaces of the two components 6, 7 of the permanent magnet system lie at the same height with each other in a common axial direction.

The lever 8 starting from the bearing 9 is inclined upward with respect to the vertical line, in which case the opposite polar member 7 is always floating closer to the permanent magnet 6 than the bearing 9.

It is also true that the spring 10 permanently exerts a compressive stress on the lever 8 in the direction described above.

A support pin 11 is mounted on the tow portion 3 so as to be displaceable vertically, which is supported by a horizontally extending arm 12 through a guide means 13 fixed on the furniture body 2. The height can be adjusted. The support pin 11 is then located below the lever 8 in a common plane with this lever 8, in which case the lever 8 can be supported on this support pin 11.

The permanent magnet 6 is fixed on the support 14, which is connected to the furniture body 2 so that it can be pivoted about the horizontal pin 15.

The support pins 11 are mounted in longitudinal guides extending vertically (not shown in detail) from the towing section 3 with a certain clearance, in which case the support pins 11 are guided when subjected to lateral loads. Blocked within.

The guide means 13 are flanks 13a inclined upward in the direction of the rear side 2a of the furniture body 2 and flanks inclined downward in the direction of the rear side 2a of the furniture main body 2 ( 13b). The turning point, ie the highest point of the guide means 13, causes the support pin 11 to be pulled up to the maximum range via an extension arm 12 which is connected to the support pin.

This maximum range of movement of the support pin 11 occurs well before the two components 6, 7 of the permanent magnet system come into contact with each other.

1 shows that the towing portion is moved from a position fully open in the direction of the rear side 2a of the furniture body 2 until the transversely extending arm 12 of the support pin 11 reaches the turning point 13a. The position of the traction part 3 obtained at the time of illustration is shown. In this position, the lever 8 is joined to the upper end of the support pin 11, in which the moment is exerted by the lever. In the direction of the rear side 2a of the furniture body 2, when the towing portion 3 is moved further from this position to the right with respect to FIG. 1, that is, inside the furniture body 2, the support pin 11 is On the one hand it is blocked in the guide because of the predetermined large tolerance between the guide and the support pin 11 on the other hand.

Thus, even if the transversely extending arm 12 moves past the turning point 13c, it is true that the lever 8 remains in the position seen in FIG. As already mentioned above, in this position the two components 6, 7 of the permanent magnet system lie at the same height on each other in a straight line facing each other. At this time, the mutually facing contact surfaces of the two components 6, 7 move perpendicularly to the propulsion direction of the traction 3.

3 shows the position of displacement of the tow 3 where there is a contact between two components 6, 7 of the permanent magnet system. Magnetic force means that immediately before the two components 6, 7 come into contact with each other, the traction part 3 receives a much greater retraction force than would be possible only by a conventional type of retraction mechanism 5.

Then, since the lever 8 is supported on the permanent magnet 6 via the opposite polar member 7 (or the additional permanent magnet 7), the direction of the rear side 2a of the furniture body 2 is supported. The further displacement of the traction 3 thus causes the load that the support pin 11 receives by the lever 8 to be removed. Thereafter, the support pin may fall down to its end position within the guide due to gravity. Due to the fact that the opposite polarity member 7 is moved over the arc path by the pivoting movement of the lever 8, the permanent magnet 6 must be pivoted about the horizontal pin 6a and be able to be displaced in the vertical direction. do. This means that the contact surfaces between the two components 6, 7 are still bonded to each other, but are inclined with respect to the vertical axis, as clearly shown in FIG. 4.

When the tow 3 is displaced back from this position corresponding to the final closed position of the tow 3 to the open position, the position of the permanent magnet system 6, 7 according to FIG. 5 is reached first. The two components 6, 7 are still joined to each other, but it is evident that they have returned to a position perpendicular to the direction of displacement of the traction 3. When an additional opening operation is carried out, the spring 10 further pivots the lever 8 in the direction of the rear side 2a of the furniture body 2. This displaces the two contact surfaces of the permanent magnet system 6, 7 parallel to each other, as shown in FIG. 6. This parallel displacement also ultimately causes the two components 6, 7 of the permanent magnet system to be separated from each other without a significant external force for this purpose.

As shown in FIG. 7, when the two components 6, 7 of the permanent magnet system are separated, the extension arm 12 of the support pin 11 is rearward of the furniture body 2 of the guide means 13. It moves toward the flank 13b which is directed towards the side 2a and is thus moved upwards in the guide. Thus, the support pin 11 is again joined to the lower surface of the lever 8. This prevents the lever 8 from further deflecting in the direction of the rear side 2a of the furniture body 2.

Thus, the effective retractive force received by the tow 3 can be significantly increased by the permanent magnet system 6, 7 over the structurally predetermined displacement region, in this case acting on the tow 3. Retraction forces may be used to control other functions not described herein.

On the contrary, when the traction part 3 is moved from its closed position, the mentioned increased retraction force does not have to be overcome, which is the configuration described in which the permanent magnet systems 6, 7 are displaced in parallel to each other. This is because they are separated by the two contact planes of the elements 6, 7, for which a relatively small external force is sufficient.

For example, a temporary cover (not shown here) is temporarily applied to the tow section 3 by the permanent magnet system 6, 7 in order to be pressed together with a sealing action on an enclosure-like tow section. Increased retraction force may be used. This method is for example advantageous in dishwashers which are designed accordingly. However, increased retractive force may also be used to allow the retractable portion 3 to be pulled together with the front panel, for example on a seal across multiple sides on the furniture body and to deform the seal. The process according to the invention can be used where increased contraction force is desired, the advantage being that when the tow is opened or towed, the corresponding force does not increase to the same extent as the relatively high contraction force obtained.

The transversely extending arm 12 of the support pin 11, guided on the guide means 13 and the guide means, is made of a material having a very low coefficient of friction.

In the exemplary embodiment of the invention according to FIGS. 1 to 9, described so far in the detailed description, the support pin 11 is virtually controlled only by the longitudinal movement of the traction 3.

10 to 11d show that the support pin 11 can be moved manually by the actuating device 16 or by using electromotive means, electromagnetic means or pneumatic means. This is different from.

As is apparent from FIG. 11A, when the actuating device 16 is not actuated, the support pin 11 is pressed from below relative to the lever 8, with the maximum pivot position of the lever 8 being the tow portion 3. It is fixed by the junction point 17 provided on the top.

As an alternative to this, it is precisely pre-determined position by the lever 8 pulled against the support pin 11 by a spring and by, for example, the support pin 11 which joins the axial stop in its guide. The lever 8 may be fixed in a specific position by the support pins 11 held at.

In the closed position of the traction part 3 shown in FIG. 11A, the permanent magnet 6 and the opposite polar member 7 or further permanent magnet are joined to each other.

In the exemplary embodiment shown, the opposite polarity member 7 or further permanent magnet 7 is fixed to the lever 8 as a separate component. As an alternative to this, however, the lever 8 and the opposite polar member 7 can also be made integrally with a magnetizable material, which can result in a significant reduction in the manufacturing cost.

When the actuating device 16 is then actuated, as can be guessed from FIG. 11B, the support pin 11 can be moved away from its support position to engage the lever 8. For this purpose, longitudinal displacement of the traction part 3 is unnecessary. Then, when the tow portion 3 is pulled from the furniture body 3 in this opening direction from this position, the bearing 9, which is mounted on the circumference in a pivotable manner, is fixed on the furniture body 2. Moving forward from the permanent magnet 6 to the front lateral direction of the furniture body 2, with the result that, on the one hand, the opposite polar member 7 or additional permanent magnet fixed on the lever 8 is in a stationary state. It is tilted about its upper edge to the permanent magnet 6 which can be explained and on the other hand is moved downwards at the same time. This creates an ever increasing void between the permanent magnet 6 and the opposite polar member 7 or an additional permanent magnet, whereby the pull-out force required to open the tow 3 is closed. It is also true that the force required to hold the magnet 6 / opposite polar member 7 pair is also smaller.

As clearly shown in FIG. 11C, the lever 8 is then supported again on the support pin 11 moved down from a particular opening distance or on any other preferred bearing means. In this position, the permanent magnet 6 and the opposite polar member 7 are completely separated from each other.

When the pull section 3 is open, the permanent magnet 7 provided on the lever 8 or alternatively the opposite polar member 7 fixed on the lever 8 is connected to the upper edge of the permanent magnet 6. Can be passed over the entire contact surface of the permanent magnet 6, or if the lever 8 is already supported on the support pin 11 or on any other preferred bearing means at an early stage, the permanent magnet ( 7) or when the upper edge of the corresponding opposite polar member is still at a distance from the bottom edge of the permanent magnet 6, it can already be separated from the permanent magnet 6.

The tow 3 can be moved from the furniture body 2 to its tow position, after which the actuating device 16 is deactivated, and the support pin 11 allows the lever 8 to contact the junction 17. Until it is moved to the top again. This state can be inferred from FIG. 11D.

Then, when the tow portion is moved back to the closed position in this position, the action of the permanent magnet 6 and the opposite polar member 7 is raised to the increased closing force just before reaching the final closing position, FIG. 11A. As can be guessed from the starting position according to this, the opposite polarity member 7 is joined to the permanent magnet 6.

In the exemplary embodiment shown, the actuating device 16 is a Bauden cable which can be operated from the front side 18 of the tow 3, as very clearly shown in FIG. 10. In contrast to the exemplary embodiment shown, however, the actuating assembly for the support pin 11 may comprise an electrical unlocking device, for example in the form of a linear actuating device with an electric motor for actuating the eccentric disk. .

Likewise, the support pins can be moved by means of permanent magnets or through pneumatic cylinders, all of which are only listed as proposals for the actuating device 16 provided in the region of the front side 18 of the tow 3. Has an actuating element to actuate.

Thus, by actuating the actuating device 16 from the front side 18 of the tow 3, the user can first cause the release of the support pin 11, and then to bring the tow 3 into a towing operation. By this means, the towing unit 3 can be opened. The actuating device 16 should always be configured such that, when inactive, the support pin 11 is moved back to the acting position of its upper end where the lever 8 is pressed against the stop 17.

Claims (16)

A retracting mechanism 5 for a retractable portion 3 which is displaceably guided in the longitudinal direction in the furniture body 2, having an energy reservoir that is deflected when the retractable portion 3 is opened and stored in the energy store. In the contraction mechanism 5, energy is released from the structurally predetermined pushing position of the traction part 3 and transmitted as a retraction force to the traction part 3. In addition to the energy store, the retractable portion is through a permanent magnet 6 and a pivot lever 8 which can be pivoted about the horizontal pins 6a, 15 on the furniture body 2 to improve the effective retractive force at a particular retracted position. Connected to (3), there is provided a permanent magnet system (6, 7) made of a counter-polar member (7) made of magnetizable material or a second permanent magnet (7), with two components (6, 7) The two components 6, 7 are pivotable such that the contact surface between the inclines is inclined with respect to the vertical axis, and the pivot lever 8 is pivoted about the pin 9. Is mounted on the furniture body 2 and one component 6, 7 of the permanent magnet system is mounted on the retractor 3. Assembled so that the contact surfaces of the components as they are pushed in when they meet Moving at right angles to the true direction, it characterized in that the traction part (3) can be displaced parallel to one another when pulled from the closed position Shrink mechanism. The method of claim 1, The components 6, 7 of the permanent magnet system assembled on the tow 3 can be pivoted about a pin 9 with a bottom end articulated on the tow 3. Assembled to the upper end of the lever 8, which is inclined with respect to the vertical line in the direction of the second components 6, 7 of the permanent magnet system, and the second component of the permanent magnet system ( It is characterized in that the load is always applied by the spring in the direction of 6, 7) Shrink mechanism. The method of claim 2, A support pin 11 for supporting the lever 8 on the lower surface of the lever is provided on the pull section 3, and the two components 6, 7 of the permanent magnet system are in mutually facing contact. It is characterized in that the lever is directed towards the rear side 2a of the furniture body 2 in a position where the surfaces lie at the same height with each other perpendicular to the pushing direction of the towing section 3. Shrink mechanism. The method of claim 3, wherein Once the contact position between the two components 6, 7 of the permanent magnet system is reached, the support of the lever 8 by the support pin 11 is removed. Shrink mechanism. 5. The method of claim 4, The support pin 11 is guided in a height-adjustable manner within the longitudinal guide of the towing section 3 with a constant clearance and guided on the guide means 13 with flanks 13a and 13b. Having an extension arm 12, the flanks inclined upward in the direction of the rear side 2a of the furniture body 2, respectively, and lower in the direction of the rear side 2a of the furniture body 2, respectively. Characterized by inclined to Shrink mechanism. 6. The method according to any one of claims 1 to 5, The components 6, 7 of the permanent magnet system assembled on the furniture body are connected to the furniture body 2, which can be pivoted about a horizontal pin and moved in a vertical direction. Shrink mechanism. 6. The method according to any one of claims 1 to 5, The maximum height adjustment of the support pin 11 is characterized in that it is determined by the turning point 13c between the two flanks 13a, 13b of the guide means 13. Shrink mechanism. 6. The method according to any one of claims 1 to 5, By the engagement of the spring lever 8, the support pin 11 is tilted in its guide even when the contact between the transversely extending arm 12 and the guide means 13 is removed. 11), characterized in that fixed to its maximum height position Shrink mechanism. delete The method of claim 1, The bottom end is articulated on the tow 3 so that the component 7 of the permanent magnet system assembled on the tow 3 can be pivoted about a pin 9. Disposed on the upper end of the pivot lever 8, the pivot lever 8 being inclined with respect to the vertical in the direction of the second component 6 of the permanent magnet system and supporting pin 11 of the actuating device 16. Characterized in that the load is applied by Shrink mechanism. 11. The method of claim 10, The lever 8 is characterized in that it is pressed against the stop 17 on the tow 3. Shrink mechanism. 11. The method of claim 10, The lever 8 is characterized in that it is pulled by a spring against the support pin 11 or some other support means. Shrink mechanism. 11. The method of claim 10, The lever 8 and the opposite polar member 7 provided on the upper end of the lever 8 are characterized in that they are integrally made of a magnetizable material. Shrink mechanism. 14. The method according to any one of claims 10 to 13, The actuating device 16 is characterized in that it comprises a Bowden cable. Shrink mechanism. 14. The method according to any one of claims 10 to 13, The actuating device 16 is characterized in that it acts on the support pin 11 using electric means, electromagnetic means, or pneumatic means. Shrink mechanism. 14. The method according to any one of claims 10 to 13, The actuation of the actuating device 16 can be effected from the front side 18 of the towing portion. Shrink mechanism.

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