RU2635913C2 - Accelerating device for mobile parts of furniture or household appliance - Google Patents

Abstract

FIELD: human vital needs satisfaction.

SUBSTANCE: accelerating device comprises a housing, a power storage device, a gripper and a deflector. The power storage device is fixed to the housing by the first end. The gripper is located on the housing with an ability to move and made with a possibility of prestressing using the power storage device. The deflector is mounted on the housing. Using the deflector, the power storage device is connected to the gripper. The deflector is connected to a mechanical locking device, which makes it possible to lock the power storage device during stress in at least one intermediate position between the minimum stressed position and the maximum stressed position. The gripper is lockable in the first end position in which the gripper enters the curved end portion of the first guide and engages with the carriage, and when the gripper is in the first end position, the power storage device has a maximum stress.

EFFECT: expanded operating capabilities.

13 cl, 21 dwg

Description

The invention relates to an accelerating device for moving parts of a piece of furniture or a household appliance, in particular for drawers or doors, in accordance with the restrictive part of paragraph 1 of the claims.

In the prior art, for example, from EP 7669393 A1, opening devices for movable parts of a piece of furniture are known in which, by means of a pushing mechanism, the movable part of the piece of furniture is accelerated in the opening direction and thus pushed out, while this movable part of the piece of furniture, for example a drawer is first held in the closed position and unlocked by pulling the opening device or pressing the ejector device against the direction of ejection, and thus movable The fifth part of the piece of furniture moves out of the piece of furniture.

The spring-loaded tension systems used in such opening or closing devices to accelerate the moving parts of a piece of furniture have a generally linear spring stiffness, while they are strained by continuous movement, for example, when the moving piece of a piece of furniture is inserted back into its closed position in the housing piece of furniture.

The disadvantage of opening and closing devices known from the prior art is that, on the one hand, in particular in conditions of limited installation space in the case of short stiff springs, the difference between the stressed and unstressed end position is correspondingly very large (large value ΔF), and the abrupt cessation of the drive force after the spring voltage is perceived negatively by the user. Moreover, the use of springs with smoothed spring stiffness is generally impossible without additional direction changing systems.

Another disadvantage of prior art systems is that upon termination of the stress process, the absorbed spring energy is released again in the opposite direction to the movement, which leads to the opening or closing parts of the piece of furniture can move back to its original position and in the worst case user injury.

To prevent this, for example, from DE 10246438 A1, a drawer system with automatic retraction and a manually activated holding system is known by which the drawer can be kept open in different places against the force of the spring. However, the disadvantage is that the user must manually intervene to unlock, i.e. in this case, to unlock it is necessary to resort to grab hands under the drawer.

The present invention is the creation of an accelerating device for the moving parts of a piece of furniture, in other words the creation of devices that positively or negatively support or perform the process of opening and / or closing with acceleration, in which the voltage of at least one energy storage device connected to the accelerating device, can be interrupted in a harmless manner and can simply be controlled.

This problem is solved using an accelerating device for the moving parts of a piece of furniture with the features of paragraph 1 of the claims.

In an accelerating device according to the invention with a deflecting device mounted on the housing of the ejector and / or retracting device, by means of which the energy storage device is connected to the gripper, the deflecting device is connected to the locking device, by which the energy storage device is secured during at least one voltage process intermediate position between the lowest stressed position and the highest stressed position.

By means of this, it is ensured, for example, that in the ejector device when the drawer is retracted, for example, into the furniture body, in which the energy storage device is tensioned, the energy storage device is held in this intermediate position due to the push of the drawer in the closing position of the sliding device the drawer is not strong enough to reach the closing position of the drawer, and thus, the directly or indirectly connected drawer will only be pulled out about partially and not completely. Thus, the full discharge of the energy storage device is effectively prevented before the end of the voltage storage process of the energy storage device.

Preferred embodiments of the invention are the subject of the dependent claims.

According to a preferred embodiment of the present invention, the deflecting device has a runaway curve that changes the distance from the location of the articulated joint of the energy storage device to the axis of rotation of the deflecting device during the voltage or vacuum process. The deflecting device includes, in particular, a disk-shaped main part arranged to rotate about a pivot axis, and a connecting element is connected to the gripper and to the main part of the guiding device, through which the gripping is connected through the guiding device configured to wind on the peripheral rim of the specified main part, directed parallel to the axis of rotation, when turning this main part.

By varying the distance from the point of application of the energy storage force to the axis of rotation of the deflecting device, a torque change is provided that favorably affects the operational comfort of the movable part of the furniture, since in this case the abrupt cessation of the drive force is no longer felt or at least significantly reduced without changing required effort to close or open the system.

According to another embodiment of the present invention, the main part of the deflecting device comprises a groove extending radially towards the pivot axis, in which a grip extending parallel to the deflecting axis (31) of the deflecting device is guided, which can be guided in a distribution cam formed on the housing and / or on the cover that closes the housing. This distribution cam preferably has at least one locking position defining an intermediate position between the minimum stressed position and the maximum stressed position.

By combining this deflecting device with a distribution cam, it is possible to perform in a simple manner the locking positions in which the energy store, preferably in the form of a traction spring, can be held at the voltage of the energy store, while it is possible to completely close or open the movable part of the piece of furniture in a simple way additional pressing on the movable part of the subject or its additional lifting up into its final polo Operation without the need for manual release of the lock.

The invention is described in more detail below by means of its embodiments with reference to the accompanying drawings, in which:

FIG. 1 is an exploded perspective view of an embodiment of an accelerator device with an energy storage system according to the invention;

FIG. 2 and 3 depict top views of an embodiment of an accelerator device in the form of an ejector device with an energy storage system according to the invention during the actuation process (with the lid removed);

FIG. 4 is a partial longitudinal sectional view of the ejector device of FIG. 2, which shows a distribution cam integrated in the housing and under the cover in the stressed state of the energy storage device;

FIG. 5 is a front view of an ejector device according to FIG. 1-4, immediately before pushing the movable part of the piece of furniture;

FIG. 6 is a detailed view of the part designated as VI in FIG. 5. to depict the release position of the carriage;

FIG. 7-12 depict additional front views of the ejector device in successive positions during the ejection process;

FIG. 13 and 14 are front views of an embodiment of an ejector device according to FIG. 3 and 4 when the voltage of the energy storage device is in a position in which the energy storage device is held in the first lock position;

FIG. 15 depicts the corresponding FIG. 14 is a front view in partial longitudinal section of an embodiment of an ejector device in a second locking position;

FIG. 16-19 depict front views of an embodiment of an ejector device shortly before or when it reaches a closed position; and

FIG. 20 and 21 are a front view of the adjusting screw of the ejector device, which affects the actuation process.

In the following description, the terms are from top to bottom, left, right, front, back, etc. refer exclusively to the approximate image selected in the drawings and the position of the housing, energy storage device, grippers, deflecting device, etc. It is assumed that these terms are not restrictive, i.e. these terms may vary at different operating positions or mirror-symmetrical layout, etc.

In FIG. 1, reference numeral 1 generally indicates an embodiment of an accelerating device according to the invention for movable parts of a piece of furniture made as an ejector device.

The acceleration device is described in the following description in an illustrative manner using the ejector device shown, wherein in the ejector device, the energy storage device 4 is tensioned during the closing process of the movable part of the furniture item, for example a sliding element moving relative to the body of the furniture item, such as a drawer or sliding or pivot door . The use of this accelerating device is also possible, for example, as a retractor supporting the process of closing the movable part of a piece of furniture, or part of a household appliance, or supporting the process of opening and / or closing a sliding door or hinged pivot door.

Shown in FIG. 1, the ejection device 1 has a housing 2 and a cover 3 covering the housing 2. In the housing 2, as can be easily seen from an exploded view in FIG. 1, there is a first guide 25 and a second guide 26 extending substantially parallel to each other.

At the same time, in the first guide 25, the gripper 13 is directed, which is capable of being locked in a known manner in the first final position, in which the movable part 13 of the piece of furniture is arranged in its closed position, which can be pushed out by means of this gripper 13. In this final position, the gripper 13 tilted into the curved end portion of the first guide 25.

To initiate the ejection process to raise the gripper 13 from its inclined position to the curved part of the first guide 25, a lever 8 located on the housing 2 can be rotated, which when moving the carriage 15 protruding from the housing 2, which is movable in the second guide 26 and pushes the ejected the movable part of the piece of furniture through the gripper 16 mounted on the carriage 15, by slightly moving the carriage 15 opposite to the ejection direction X presses the lever arm of the lever arm 8 downward so that the other arm of the lever arm of the lever 8 comes into contact from below with an employee for guiding the gripper 13 in the first guide 25 by the gripping pin 13, which engages with the guide 25, and thus lifts the gripper 13 from the bent the end portion of the first guide 25 to the region of the first guide 25 parallel to the second guide 26.

By raising the gripper 13 into the region of the first guide 25 parallel to the second guide 26, the tip of the gripper 13 engages with the stop of the carriage 15 and is engaged with the carriage 15 in the ejection direction.

As shown further in FIG. 1 and, for example, in FIG. 2, the gripper 13 through the second connecting element 9, the rotary device 10 and the first connecting element 5 is connected to the energy storage 4, preferably made in the form of a tension spring, while the energy storage 4 is maximally tensioned when the gripper 13 is placed in a position in the curved part of the first guide 25, as shown in FIG. 2. The second connecting element 9, preferably a tension tape or cord, is secured with the first end 23 with a grip 13 and the second end 24 in the groove 12 of the main part 28 of the deflecting device 10. The second connecting element 9 can also be made in the form of a rigid element, for example gear rack.

Accordingly, the first connecting element 5 is fixed at one end with the energy storage 4, made here in the form of a tension spring, and its other end also on the main part 28 of the deflecting device 10. Depending on the configuration of the energy storage 4, it is also possible to directly connect the energy storage 4 to the deflecting device 10.

As can be well seen in FIG. 1, the deflecting device 10 essentially comprises a partially wheel-shaped body 28 with radially extending grooves 12 for receiving one end 24 of the second connecting element 9 and one end of the first connecting element 5, in particular in the form of a cord or a tension tape.

In the particular embodiment shown here, the deflecting device 10 is rotatably disposed on the housing 2 and on the cover 3, and the distance from the location of the swivel joint of the energy storage device 4 to the rotation axis 23 of the deflecting device 10 describes a runaway curve that changes during the opening or closing process

In this case, the peripheral rim 27 of the main part 28 directed parallel to the rotation axis 23 serves to accommodate the connecting element 9 connected to the grip 13, which is capable of winding on this peripheral rim 27 when the main part 28 is rotated.

A portion of the rim 27 of the disk-shaped main body 28 has, in a predetermined angular range of the main body 28, a guide groove 11 extending in a circumferential direction in which a part of the energy storage device 4 is connected or connected to the energy storage device 4 and attached to the main body 28, the first connecting element 5 in a predetermined angle the rotation range of the deflecting device 10 in a radial direction closer to the axis of rotation 23 of the deflecting device. This ensures that the torque acting on the deflecting device 10 decreases due to a change in the point of application of force that is applied to the deflecting device 10 through an energy storage device 4 made in the form of a tension spring, when approaching the closing position of the gripper 13 and, thus, sharp Decrease in driving force at the voltage of the ejector device.

As can be seen in FIG. 1, 2 and 4, on the housing 2 in the region of the deflecting device 10 and / or on the inner side of the cover 3 facing the housing 2, a distribution cam 20 is provided in which the gripper 18 is guided, which is guided into a groove 19 extending radially to the axis of rotation 31 the main part 28, so that the gripper 18 is guided with the possibility of radial movement in the groove 19 of the main part 28 when the deflector 10 is rotated in the distribution cam 20. In this case, the distribution cam 20 has at least one intermediate position between inimum strained position and the position of the maximum voltage drive 4 power that determines the lock position. In the embodiment shown in the drawings, the distribution cam 20 is configured with a first lock position 21 and a second lock position 22.

In an alternative embodiment, the gripper 18 moved in the distribution cam 20 is designed so that when the main body 20 moves against the direction of voltage, it can be continuously fixed or clamped in the distribution cam 20.

Below using FIG. 2-18, the flow of the ejection process and the subsequent re-entry process of the ejector device 1 are described. As already indicated above, in FIG. 2 shows the initial position of the ejector device, in which the gripper 13 is located inside the curved region of the first guide 25 and engages with the carriage 15. The energy storage device 4 in this position is as stressed as possible.

After the ejection process has been initiated by moving the carriage 15 against the ejection direction X, in which the grip 13 extends from the curved region of the first rail 25 to the region of the first rail 25 parallel to the second rail 26, as shown in FIG. 5, the gripper 13 extends in the ejection direction X by the connecting member 9 and the deflecting device 10 from the energy storage 4, which is connected by the connecting element 5 to the rotary device, and pushes the carriage 15 in the second guide 26 forward in the ejection direction, while 13 and the carriage 15 will not reach the other end of the corresponding guide 25, 26, and the energy storage 4 will not be mixed with the maximum possible unstressed position. This position is shown in FIG. 12.

In FIG. 7-11 show the corresponding intermediate positions, in which, in particular, it is seen that the connecting element 5 at the beginning of the pushing movement is guided into the groove 11 of the main part 28, and thus, the torque applied to the deflecting device 10 is relatively small due to for a small distance from the application point to the axis of rotation 31, and when the deflecting device 10 is clockwise turned out of the groove 11 and placed on the peripheral rim 27 of the main part 28, which, in accordance with its form of execution moves with increasing the angle of rotation in the radial direction from the axis 23 of the outward rotation, so that shortly before reaching the end point of pushing out of the carriage 15 or the gripper 13, the gripper 13 was pulled into the final position with maximum torque.

As can be seen in FIG. 8 and 10, during this ejection process, the gripper 18 is guided along a predetermined path in the distribution cam 20 first to a path region of the distribution cam 20 concentric around the rotation axis 31 and brought closer to the rotation axis 31 from a predetermined excess angle (see FIG. 10) .

During the subsequent movement of the carriage 15 or the gripper 13 back to the one shown in FIG. 2, the initial position of the gripper 13, as shown in FIG. 13-18, is moved back by means of a swinging support 14, mounted on the carriage 15 with the possibility of rotation, in the initial position shown in FIG. 2. In this case, the energy storage device 4 is again energized. As soon as the shift of the carriage 15 during the stress process is interrupted, the gripper 18 enters, during the passage through the radially internal path of the distribution cam 20, in the first locking position 21, as shown in FIG. 14, or to the second lock position 22, as shown in FIG. 15, whereby the quick return of the gripper 13 is prevented due to the tractive effort of the energy storage device 4. Thus, by simply further moving the carriage 15 against the ejector device, the closing movement, which is inhibited in the first or second locking position 21, 22, can be continued until the final gripping position shown in FIG. 17.

As can be seen in FIG. 18 and 19, the energy storage device 4 is fixed by means of the energy storage holder 6 to the housing 2 of the drawer 1. This energy storage holder 6 has an adjustment element 7 preferably made in the form of an adjusting screw, by which it is possible to individually set the pre-voltage of the energy storage 4 by moving the energy storage holder 6 in the ejection direction X or against the indicated direction. FIG. 8 shows the position of the energy storage holder 6, in which the energy storage 4 made in the form of a tension spring is slightly stressed, while in the embodiment shown in FIG. 19, the position of the holder 6 of the energy storage device, the energy storage device 4 is highly prestressed.

In order to compensate for the tolerances in the preliminary setting of the stroke for actuating the ejector device, an adjustment wheel 29 is additionally located on the housing 2, by means of which the lever 8 can be set to a predetermined initial position, so that depending on the position of the adjustment wheel, which is preferably equipped with an eccentrically made the supporting rim 30, which adjoins the lower part of the lever opposite to the gripper 13, it is possible to set the shift amount of the lever 8. In FIG. 20 and 6 show various settings of the adjustment wheel 29.

It is important that when closing the drawer with the ejector device 1, as described above, in the case when the grip 13 starts pushing the drawer to close with a too small force impulse, the traction force of the energy storage device acting on the grip is intercepted by the locking device at least at least one intermediate position and thus only part of the tractive effort has been returned back to the guide system. Due to this, the drawer can be pushed back towards the user with a much lower speed, while the user may be able to completely close the drawer with a simple push without manually unlocking.

Reference List

1 accelerator

2 building

3 cover

4 energy storage

5 first connecting element

6 energy storage holder

7 adjustment element

8 lever

9 second connecting element

10 deflecting device

11 guide groove / groove

12 groove

13 capture

14 swing support

15 carriage

16 pin

18 capture

19 groove

20 cam

21 lock position

22 lock position

23 first end of the connecting element

24 second end of the connecting element

25 first guide

26 second guide

27 peripheral rim

28 main part

29 adjustment wheel

30 support rim

31 axis of rotation

Claims (20)

1 An accelerator for movable parts of a piece of furniture or a household appliance, in particular drawers or doors, comprising - Pavilion 2), - energy storage (4), mounted on the housing (2) with the first end, - at least one grip (13) located on the housing (2) with the possibility of movement and made with the possibility of prestressing using the energy storage (4), - a deflecting device (10), which is installed on the housing (2) and through which the energy storage device (4) is connected to the capture (13), characterized in that - the deflecting device (10) is connected to a mechanical locking device, with which it is possible to fix the energy storage device (4) during the voltage process in at least one intermediate position between the minimum stressed position and the maximum stressed position, while the grip (13) is made with the possibility of locking in the first final position, in which the grip (13) enters the curved end part of the first guide (25) and engages with the carriage (15), and when the grip (13) is in the first final position energy storage (4) has a maximum voltage. 2. The accelerating device according to claim 1, characterized in that the gripper (13) is connected to the rotary device (10) using the first connecting element (9). 3. The accelerating device according to claim 2, characterized in that the first connecting element (9) is made in the form of a tension tape. 4. The accelerating device according to any one of paragraphs. 1-3, characterized in that the deflecting device (10) has a runaway curve that changes the distance from the location of the swivel joint of the energy storage device (4) to the axis of rotation (31) of the deflecting device (10) during the opening or closing process. 5. The accelerating device according to claim 3, characterized in that the deflecting device (10) comprises a disk-shaped main part (28) rotatable around the axis of rotation (31), with the gripper (13) and the main part (28) of the guide device (10), a connecting element (9) is connected, made with the possibility of winding on the peripheral rim (27) of the indicated main part (28), directed parallel to the axis of rotation (31), when the main part (28) is rotated. 6. The accelerating device according to claim 5, characterized in that the part of the rim (27) of the disk-shaped main part (28) has a fixed distance (g) to the axis (31) of rotation of the deflecting device (10), with at least one additional part the rim (27) of the disk-shaped main part (28) has a distance to the axis (31) of rotation of the guide device (10), different from the fixed distance (g). 7. The accelerating device according to claim 5 or 6, characterized in that the part of the rim (27) of the disk-shaped main part (28) has a circumferentially extending guide groove (11) adjacent to it in a predetermined angular rotation range of the deflecting device (10) ), a part of the energy storage device (4) or a second connecting element (5) connected to the energy storage device (4) and fixed to the main part (28). 8. The accelerating device according to claim 7, characterized in that the second connecting element (9) is made in the form of a tension tape or cord. 9. An accelerating device according to claim 5 or 6, characterized in that the main part (28) comprises a groove (19) extending radially towards the axis of rotation (31), in which a gripper (18) extending parallel to the axis of rotation (31) is directed ), made with the possibility of direction in the distribution cam (20) formed on the housing (2) and / or on the cover (3) closing the housing (2). 10. The accelerating device according to claim 9, characterized in that the distribution cam (20) has at least one locking position (21, 22) defining an intermediate position between the minimum stressed position and the maximum stressed position. 11. The accelerating device according to claim 9, characterized in that the gripper (18), made with the possibility of direction in the distribution cam (20), is made in such a way that when the main part (28) is moved against the direction of voltage, it is continuously fixed or clamped in the distribution cam (twenty). 12. The accelerating device according to claim 11, characterized in that the gripper (18) is made in the form of a friction wheel. 13. The accelerating device according to any one of paragraphs. 1-3, 5, 6, 8, 10-12, characterized in that the gripper (13) is arranged to move in the first guide (25) of the housing (2) and can be locked in the first final position, while in the second guide (26) of the housing (2) is arranged to move the carriage (15), made with the possibility of connection with the grip (13) and with the movable part of the piece of furniture.

Images