CN103338679A

CN103338679A - Furniture drive

Info

Publication number: CN103338679A
Application number: CN201180066821XA
Authority: CN
Inventors: F·科尼格; C·豪尔
Original assignee: Julius Blum GmbH
Current assignee: Unisys Co. Ltd. Blum Si
Priority date: 2011-02-21
Filing date: 2011-12-27
Publication date: 2013-10-02
Anticipated expiration: 2031-12-27
Also published as: AT510549A4; EP2642899B1; EP2642899A1; AT510549B1; CN103338679B; WO2012112998A1; JP2014505561A; JP5870120B2

Abstract

A furniture drive (1) having: - an output drive (2) for transmitting force to a movable furniture part (11), - an electric motor(3), - a gear mechanism (4) which is connected between the electric motor (3) and the output drive (2), - a switching device (5) for switching the electric motor (3), - a first sensor (6), it being possible for the signals from said sensor to be supplied to the switching device (5), wherein the first sensor (6) is mechanically coupled to the gear mechanism (4), wherein a second sensor (7) is provided, it being possible for the signals from said second sensor to be supplied to the switching device (5), and wherein the second sensor (7) is coupled to a mechanical actuating sensor (8) independently of the gear mechanism (4), and wherein the switching device (5) switches on the electric motor (3) when a signal is received from the first or second sensor (6, 7), and an item of furniture having a furniture drive of this kind.

Description

Furniture drive

Technical field

The present invention relates to a kind of furniture drive of the described feature of preamble with claim 1 and a kind of furniture of the described feature of preamble according to claim 4.

Background technology

For example the WO2007/009133A1 by the applicant learns a kind of furniture drive of described type or a kind of furniture of described type.The task of this publication is so further improvement furniture drive, so that the danger of inadvertent free is reduced.Its solution is: arrange one for the threshold values (trigger sensitivity) of the different sizes of open mode of the movable furniture parts of the basis that triggers motor.At the terminal location of closing of movable furniture parts, this threshold value is lower than the threshold value for the terminal location of opening fully of movable furniture parts.This is for this consideration, and namely movable furniture parts is subjected to hardly unintentionally at its terminal location of closing that power influences.At the terminal location of opening fully of movable furniture parts, may produce power influence unintentionally by with filler movable furniture parts being carried out load or unload on the contrary.By selecting higher threshold value to adapt to the needs of described furniture parts in this position of movable furniture parts.

Summary of the invention

Task of the present invention provides a kind of furniture drive of described type and a kind of furniture of described type, and they have described a kind of alternative workaround under the situation that keeps above-mentioned theory.

Described task is finished by the furniture drive with the described feature of claim 1 and the furniture with the described feature of claim 4.

The favourable embodiment of the present invention limits in all dependent claims.

The present invention is foundation with surprising knowledge, namely, even arrange two structures identical, when respectively having the sensor of the same firing level of preserving itself, also can obtain a kind of different trigger sensitivity effectively, decide on movable furniture parts is in the terminal location of closing.According to the present invention, this realizes that by such mode (a second) sensor is independent of the external force effect that transmission mechanism connects with the adjustment indicator of a machinery and therefore can directly be applied on the movable furniture parts the user and reacts.Preferably directly power is not applied to this user on the adjustment indicator of machinery, but is applied to indirectly on the movable furniture parts.Because the adjustment indicator of machinery is arranged between movable furniture parts and the furniture body, the user is applied to the motion that causes mechanical adjustment indicator on the movable furniture parts with pressure and/or pulling force, and this motion is directly detected by corresponding (second) sensor.

On the contrary, first sensor mechanically connects with transmission mechanism.Produce bigger inertia thus, other says it, and this sensor needs the longer time that a triggering signal is transferred to switching device.

If therefore movable furniture parts be in the furniture body or on the terminal location of closing and user pressure and/or pulling force are applied on the movable furniture parts, then the motion that not only produces the adjustment indicator of machinery triggers second sensor then, but also the motion that the motion of generation output device produces transmission mechanism and the final first sensor that connects with transmission mechanism then.But because second sensor triggers than first sensor quickly because it directly triggers, so draw a trigger sensitivity effectively, this trigger sensitivity meets second sensor basically because the trigger sensitivity that its frame mode draws.

If movable furniture parts is not in its terminal location of closing, that is it or only partly or intactly towards the terminal location direction motion of opening, then Ji Xie adjustment indicator no longer abuts on the furniture body.If the user is applied to pressure or pulling force on the movable furniture parts now, then have only first sensor to give switching device with this situation report, because second sensor is not received signal from the adjustment indicator of machinery really.And produce a trigger sensitivity that is higher than at the terminal location of closing in this case, because first sensor only detects pulling force or the pressure that the user applies via transmission mechanism, even first sensor is identical with second sensor construction, what described situation neither the sin qua non.

Alternatively or additionally, it is inequality first and second sensors can be chosen as structure certainly, but select a sensor that has a lower trigger sensitivity than second sensor from the beginning and be used for first sensor.Within the specific limits, even can select such sensor as second sensor, this sensor itself has littler trigger sensitivity than first sensor, as long as this mechanical attachment by first sensor and transmission mechanism is by overcompensation.

The adjustment indicator of machinery can for example be configured to the push rod of mobile-bearing or the lever of turntable supporting, as this is own known.Particularly suitable is the lever of turntable supporting, as the theme of for example the applicant's WO2010/081178A1.

Control or an adjusting device that is used for motor preferably is set, and especially preferably with switchgear configurations in control or adjusting device.Yet the present invention just in time can realize need not arranging expensive control or adjusting device and replace only to provide a simple switch device.

Description of drawings

By accompanying drawing and therewith relevant description of drawings provide other advantages of the present invention and details.Wherein:

Fig. 1 is according to the schematic diagram of furniture drive of the present invention,

Fig. 2 has the perspective view according to furniture of the present invention according to furniture drive of the present invention, and

Fig. 3 to 5 is according to the different view of furniture drive of the present invention.

The specific embodiment

Fig. 1 illustrates one in schematic form according to furniture drive 1 of the present invention.This furniture drive has a motor 3, this motor via one this output device 2 that is shown as gear drive one this not the movable furniture parts 11(of more detailed demonstration referring to for example Fig. 2).Between motor 3 and output device 2, arrange or be connected a transmission mechanism 4.A switching device 5 that is used for connecting motor 3 is set in addition.First sensor 6 mechanically connects with transmission mechanism 4 and with its signal input switch device 5.Second sensor 7 connects with the adjustment indicator 8 of a machinery also equally with its signal input switch device 5.

Fig. 2 illustrates one at the example of furniture 9 according to the present invention with the form of perspective view, and this furniture has a furniture body 10 and a movable furniture parts 11, and this furniture parts is drivable by a furniture drive 1 according to the present invention.Movable furniture parts 11 be in a terminal location of in furniture body 10, closing and the terminal location opened fully between the position.Owing to relating to the movable furniture parts 11(of a no handle with the form of a drawer in the situation at present), even so at the terminal location of closing of movable furniture parts 11 slightly gap also must be in known manner be set between the end face of the front panel of movable furniture parts 11 and furniture body 10, in order to be provided for the triggering stroke that triggers motor 3 on the furniture parts 11 by applying pressure to.

Fig. 3 a illustrates furniture drive 1 according to the present invention in the installation site of Fig. 2, but wherein removed furniture body 10 and movable furniture parts 11 for the sight line reason.In the present embodiment, furniture drive 1 is connected with movable furniture parts 11 regularly.Via the output device 2 of the gear forms that for example can find out in Fig. 5, motor 3 can be delivered to power on the exemplary display tooth bar 13.This causes the motion of movable furniture parts 11.In an illustrated embodiment, a side at movable furniture parts 11 arranges one according to furniture drive 1 of the present invention.In order to realize equably power being applied on the movable furniture parts 11, known synchronizing bar 12 itself is set, this synchronizing bar allows a part of power with motor 3 to be delivered on another gear on the opposite side that is arranged on movable furniture parts 11.This gear and the engagement of another tooth bar (not shown).

Gear and tooth bar are only exemplarily shown.Can use diverse output device 2, for example the output device of friction pulley form or cable traction device form.

In Fig. 3 a, can be clear that adjustment indicator 8, this adjustment indicator and backstop 14 actings in conjunction that are installed on the furniture body 10 of machinery.The motion that not only the adjustment indicator 8 of machinery is pressed on this backstop 14 but also lifts the adjustment indicator 8 that all causes machinery from this backstop, this motion a) can be delivered on the driving wheel of a potentiometer (second sensor 7) referring to for example Fig. 4 via a gear segment 15(.

Relative therewith, first sensor 6(constitutes Hall element-referring to for example Fig. 5 b at this) mechanically connect with transmission mechanism 4.

Transmission mechanism 4 has the driving force of motor 3 is delivered to function on output device 2 or the synchronizing bar 12 with suitable gearratio.This realizes via

gear

41,42,43,44 and 45 after the worm screw 31 of motor 3.Last gear 45 final and output device 2 engagements.First sensor 6 is mechanically coupled in this via gear 43 and

gear train

62 and 61 realizations with transmission mechanism 4.

Shown in specific embodiment in, furniture drive has an adjusting device, wherein is configured with switching device 5.This switching device is arranged on one in the drawings not on the circuit board of more detailed demonstration in known manner.

As the electric current input, be not shown for the known measure of those of ordinary skill.

Claims

1. furniture drive (1) has:

-one is used for power is delivered to output device (2) on the movable furniture parts (11),

-one motor (3),

-one transmission mechanism (4) that is connected between motor (3) and the output device (2),

-one switching device (5) that is used for connecting motor (3),

-one first sensor (6), but this first sensor signal input switch device (5), wherein first sensor (6) mechanically connects with transmission mechanism (4), it is characterized in that: be provided with second sensor (7), but the signal input switch device (5) of this second sensor, and second sensor (7) is independent of transmission mechanism and connects with the adjustment indicator (8) of a machinery (4), and switching device (5) is connected motor (3) when receiving the signal of first or second sensor (6,7).

2. according to the described furniture drive of claim 1, it is characterized in that: the adjustment indicator (8) of machinery is configured to the push rod of mobile-bearing or the lever of turntable supporting.

3. according to claim 1 or 2 described furniture drives, it is characterized in that: control or an adjusting device that is used for motor (3) is set, and preferred switching device (5) is configured in described control or the adjusting device.

4. furniture (9), has a furniture body (10), one the terminal location of closing be bearing in the furniture body (10) or on movable furniture parts (11) particularly drawer or furniture valve and one by one of claim 1 to 3 described furniture drive (1), the wherein output device (2) of this furniture drive (1) and movable furniture parts (11) acting in conjunction, and wherein Ji Xie adjustment indicator (8) is arranged between furniture body (10) and the movable furniture parts (11), goes up the motion that also causes the adjustment indicator (8) of machinery except output device (2) then the motion of transmission mechanism (4) thereby the user is applied to movable furniture parts (11) with pressure and/or pulling force.