Summary of the invention
Therefore the objective of the invention is, a kind of panel fitting is provided, this panel fitting is connected with a drive unit in simple mode, is used for the automatically open and close rotatable parts.
This purpose solves by the panel fitting with following characteristics, is used for the panel fitting of cabinet-type piece of furniture that is:, comprises rotatable parts and a fixed head, and described rotatable parts can be connected and be bearing on two levers that lead with renovating; Described fixed head can be connected with furniture cabinet, wherein at two levers of fixed head upper support, one of them first lever hingedly is connected with two guiding levers, and second lever hingedly is connected with a guiding lever, it is characterized in that, be provided with a coupling element on a lever or guiding lever, this coupling element can move by a drive unit, be used for making the rotatable parts motion, described drive unit comprises motor.
According to the present invention, on panel fitting, be provided with a coupling element on lever or guiding lever, this coupling element can move by drive unit, is used for making the rotatable parts motion.The advantage that coupling element is arranged on a lever or guiding lever is that panel fitting also can be arranged on furniture even without drive unit with working, in order to can install additional for the applicable cases of determining.At this, coupling element can be arranged on by the mounting cost of less on lever or guiding lever.This coupling element with at least one arbitrarily lever that is movably accessory be connected, to realize the automatic unlatching of panel fitting.
According to a preferable configuration of the present invention, coupling element is connected with lever with the guiding lever on a hinge axis.Being arranged on hinge axis is simple for installation on the one hand, and, drawing in addition the predefined force rate rate of driving element, it depends on the opening angle of rotatable parts.
For a compact structure mode, drive unit adjacent to fixed head be arranged under the side or fixed head that deviates from rotatable parts.Thus, drive unit from the unlatching zone of renovating relatively away from, and therefore hardly as seen.
In order to handle simply, rotatable parts can be fixed on by clamping force and frictional force and open in the zone, preferably are fixed between the enable possition of at least 45 ° to 110 °.Therefore, drive unit can make rotatable parts open, thereby can be fixed in a desirable angle position.Rotatable parts always fully opening and closing be unnecessary.
According to another structure of the present invention, be provided with a spring,, in being biased into rotatable parts the position of closing, the position of closing and crosses during a dead point is biased into later on the position of opening in rotatable parts deflection by means of this spring.This spring can be configured to helical spring, gas spring, stage clip, extension spring or other energy accumulator.At this, this spring can reduce be used to making rotatable parts move necessary power because the part of gravity when unlatching is renovated by spring-compensating.Therefore with regard to this point, motor can be designed to less.This outer spring will be renovated and move in make position, and will be motionless to avoid faint delay.
The driving power that preferably is used for making the drive unit that rotatable parts rotate depends on the enable possition but varies in size, and the opening angle that expends maximal regulated power of rotatable parts is not the opening angle of realizing the maximum consumption of power of drive unit.In other words, drive unit is coupled with lever or guiding lever like this, that is: in maximum open position, the Action of Gravity Field of the maximum of renovating therein is on rotatable parts, drive unit has the power transmission, to such an extent as to needn't provide peak power output in this unlatching zone.Therefore, the motor of drive unit can be designed as than with rotatable parts on power to import the structure of the power stage of directly proportionally realizing motor slightly little.Preferably power stage is than the drives structure little at least 10% to 20% that realizes directly driving on lever or guiding lever.At this, the transmission between motor and lever or guiding lever is not to realize on whole pivot region, but special only in unlatching zone, an end, opens in this end and has maximum gravity in the zone.
Preferably drive unit comprises a motor, and this motor is connected with coupling element by a transmission device.At this, coupling element can the turning cylinder that is interval in gear on a side be bearing on described gear, and be bearing on a hinge axis between lever at a lever and a guiding on an opposed side.During therefore at the Application standard member, as gear, provide a drive unit.Open fast in order to guarantee at this, coupling element can be in the pivot region of the centre of rotatable parts reaches the maximum opening speed of rotatable parts during the constant rotational speed at drive unit.Because the user wants to reach the smooth and easy unlatching of renovating in the pivot region of centre, rather than renovating of being ejected at the beginning frighten, and perhaps the end in the enable possition clashes into and disturbed by sharp-pointed noise by the fierceness of renovating.Thus, the rotation with friction speed is favourable.
According to another structure of the present invention, coupling element is connected with a main shaft driving device.This also can be arranged on fixed head or another member in simple mode, rotates the accessory motion in order to make.Possiblely in addition be, drive unit is provided with a drive link, and this drive link can move by the rope that can reel.In order to drive accessory, also can be provided with a rotating lever, this rotating lever is bearing on the hinge point of lever, and stretches out on the section of lever driven one.
The specific embodiment
Show out a panel fitting 1 in Figure 1A, this panel fitting is arranged on a furniture body 2, is preferably on cabinet-type piece of furniture, in order to make one to renovate 3 and can upwards rotate.Fix rotatable parts 4 on 3 renovating, these rotatable parts are designed to dihedral for this reason, and have a hinge axis 6 one on perpendicular to the section 5 of renovating 3 plane, at these hinge axis 6 upper supports one guiding levers 7.Construct another axle 8 with axle 6 compartment of terrains on section 5, thereon rotatably support one second guiding lever 9.
Above-mentioned guiding lever 9 is connected with one first lever 11 by an axle 16 on the end that deviates from rotatable parts 4, and this lever is same hingedly to be coupled by an axle 17 with guiding lever 7.Be provided with one second lever 12 with the first lever 11 compartment of terrains, this second lever hingedly is connected with guiding lever 7 by an axle 13 on a side, and passes through axle 14 at another end and hingedly be connected with a fixed head 20.
Seen at Figure 1B and 1C, renovate 3 in order to open, rotatable parts 4 can be relative to rotating to fixed head 20.Shown panel fitting 1 relates to one and comprises 7 hinge axis 6,8,16,17,13,14 and 15 accessory.The setting of these axles and lever 7,9,11 and 12 geometry can change according to applicable cases.
For rotatable parts 4 can move to the enable possition relatively easily, be provided with a spring 25, this spring-loaded is on an end of an axle 24, and this end is configured for the hinge point of lever 21 and lever 22.Lever 21 is rotatably supported on hinge axis 13, and lever 22 is fixed on axle 23 deviating from a side of axle 24, and this axle is arranged on fixed head 20.Spring 25 is fixed on a side of axle 24 on a pin 26 deviating from, and its adjustable ground remains on a screw 27, so that can the regulating spring pulling force.
In renovating 3 make position, spring 25 is pressed into make position with rotatable parts 4, because in order to open rotatable parts 4 by mechanical device, lever 21 and 22 at first mobile with axle 13 and 23 with overlapping each other, to such an extent as to the length of spring 25 also becomes greatly when beginning a little.Only have when angle for for example 15 to 25 when spending, the length of spring just reduces, and spring 25 is pressed into rotatable parts 4 in the enable possition now.Therefore after passing a dead point, support opening movement by spring 25.
For not just manually, but also can the automatically open and close panel fitting, a drive unit is set.This drive unit comprises the coupling element 30 of a lever form, this coupling element at a side upper support on hinge axis 13, and at an opposed side upper support on the axle 35 on a gear 33.Gear 33 is around turning cylinder 34 rotatably supports, and wherein, axle 35 is interval in turning cylinder 34 ground settings.Gear 33 can drive by a motor 32, and it is connected with gear 33 with 39 with a plurality of gears 36,37,38 with screw rod 40 by an output shaft.Provide transmission by gear 36 to 39, to such an extent as to that motor 32 can be designed to is relatively little.Transmission device 31 also can be retrofited as required.
Renovate 3 in order automatically to open, motor 32 with gear 33 by the inverse position hour hands reverse drive shown in Figure 1A, until at first reach in the position shown in Figure 1B.In this position, line between the axle 13 and 35 of connecting rod 30 approximately perpendicular to radius be arranged between turning cylinder 34 and axle 35, that is, renovate 3 be open in this position and realize especially soon, because the motion of connecting rod 30 and guiding lever 7 is carried out as far as possible point-blank.
When continue opening, reach 3 the maximum open position of renovating corresponding to Fig. 1 C.In this position, gear 33 rotates axle 35 along a direction, and it only moves connecting rod 30 minutely on a direction corresponding to the line of axle 13 and 35, and is exactly to rotate.Therefore renovating 3 opening movement at the end of opening movement relatively slow, is large and renovate 3 opening movement in the zone of centre when the invariablenes turning speed of gear 33.
Chart in the force rate rate when opening panel fitting 1 shown in Fig. 1 D.Be illustrated in the power that acts on axle 13 on guiding lever 7 with line A.At first must use one be used for to open and to renovate the power that certain making every effort to overcome of 3 takes spring 25, at this, then cross a dead point, the power of spring 25 is along the opening direction effect, and renovates 3 gravity by small opening angle less also.But from certain opening angle, renovate 3 gravity extruding guiding lever 7, and this power is until increasing corresponding to the terminal position of Fig. 1 C.
The torque that acts on when renovating 3 unlatching on gear 33 is shown by figure B.Due to the structure of the drive unit with connecting rod 30 and gear 33, torque reduces once again by the end at opening process just in time, and this can be by being bearing in explanation on gear 33 with axle 35.Because the rotation of gear 33 only causes renovating 3 small movement at the end of opening process.
Show out essential motor power (output) by figure C, it depends on opening angle.
Illustrate corresponding to the motor power (output) of scheming C with another resolution ratio in Fig. 1 E, wherein, figure D illustrates the motor power (output) that depends on opening angle.At this as seen, for the torque on gear, motor power (output) also just in time no longer raises at the end of opening process corresponding to figure B, but again descends.Thus, required maximum motor power is less than directly driving for example motor of lever 12.Therefore corresponding motor can design relatively little.
Show out the power curve of direct drive unit in Fig. 1 F, at this direct motor of activation lever 12 for example.Required motor power (output) rises to maximum at the end of opening process subsequently, has maximum gravity at this by renovating 3.By the higher power consumption on the end of opening process, motor must be designed to corresponding powerful.
In the following embodiments, accessory is to comprise fixed head 20, guiding lever 7 and 9, lever 11 and 12 and as the rotatable parts 4 of constructing in the first embodiment.Therefore these accessories can not described in detail below again.
With regard to the panel fitting shown in 2D, connecting rod 30 ' remodeling ground builds, and the gear 33 ' rotatably support of a remodeling with regard to Fig. 2 A.Gear 33 ' at first moves to a position of slightly opening (Fig. 2 B) from make position (Fig. 2 A) but deasil will renovate 3 unlike rotating counterclockwise in the first embodiment.By gear 33 ' continue clockwise rotate, renovate 3 and move in maximum open position, seen at Fig. 2 C.
In a see-through view of panel fitting shown in Fig. 2 D, find out thus the relative unfertile land structure of accessory and setting compactly.Power, torque and the power of machinery are similar to the first embodiment.
In Fig. 3 A another form of implementation to panel fitting shown in 3C.Panel fitting comprises the coupling element 50 of a rod, and this coupling element is connected with guiding lever 7 on axle 13 rotationally.One drivening piece 54 is set on coupling element 50 in the zone of centre, and this drivening piece comprises a mainshaft nut, and can move on a rotating main shaft 53.Main shaft 53 is fixed on main shaft shell 52, and drives by a motor 55.By the rotation of main shaft 53, mainshaft nut and drivening piece 54 move, and therefore coupling element 50 can move to full open position (Fig. 3 C) from the enable possition (Fig. 3 B) of make position (Fig. 3 A) by a centre.Be fixed on fixed head 20 at this main shaft driving device 51.
In Fig. 3 D, be illustrated in force rate rate on main shaft driving device 51 with a chart.Be illustrated in the power on guiding lever 7 in the zone of bearing 13 at this figure G, wherein, the power consumption on guiding lever 7 is along with the opening angle that increases increases equally.
Figure H is illustrated in the power on main shaft 53, and the power that it is different from guiding lever G no longer raises endways, but descends.This is relevant with aliging of main shaft 53, and it arranges with respect to guiding lever 7 with angle given in advance.Also therefore can access a corresponding transmission in the zone of opening the path.
Therefore draw a motor power (output) according to figure I, this motor power (output) is equally endways again than medium and small at a zone line.
In Fig. 4 A another form of implementation to panel fitting shown in 4C, wherein, drive unit comprises the coupling element 60 that a form is lever, and this lever is connected by axle 62 rotationally with another lever 61.In addition, lever 61 is fixed on furniture body 2 on another axle 63, perhaps is fixed on a corresponding fixed head 20.Renovate 3 for opening and closing and be provided with a rope 64, this rope is being fixed on axle 62 on one side, and can be wound around around roller 65 on an opposed side.Roller 65 can drive by tooth section 66, and this tooth section is connected with motor 67 by a transmission device.
By tension rope 64, renovate 3 and at first moved in a position (Fig. 4 B) of slightly opening by make position (Fig. 4 A).Continue to be wound onto on roller 65 as rope 64, renovate and be opened into a maximum open position, as shown in Fig. 4 C.
In the force rate rate when panel fitting is opened shown in Fig. 4 D.Diagram K illustrates the power that acts on rope 64, and this power depends on renovates 3 opening angle.Power on rope K is passed one and is interval in maximum opening angle to greatest extent.Therefore this is associated with, and the position of axle 62 changes when opening panel fitting, and the force rate rate is more favourable.In contrast, diagram J is illustrated in the power on guiding lever 7 in the zone of axle 13, and this power rises along with the opening angle that increases constantly.
Diagram L illustrates essential motor power (output), it is essential that this motor power (output) renovates at 3 o'clock in unlatching, because the power on rope reduces once again at the end of opening the path, motor power (output) also reduces once again at the end of opening the path, to such an extent as to that motor 67 can be designed to is relatively little.
Be shown enlarged in the power of motor on the drive unit with rope 64 in Fig. 4 E.Diagram M illustrates power curve, and this power curve requires the different power of motor 67 according to opening angle, and wherein, although by renovating 3 gravity, power is just in time in the decline slightly again of maximum opening angle place.
In another form of implementation of panel fitting shown in Fig. 5 A, by coupling element 70 motions that are configured to lever, this lever can rotate around an axle 71 at this guiding lever 7, and this axle is also the axle 14 of lever 12 simultaneously.In addition, coupling element 70 is by an axle 72 and 7 couplings of guiding lever, and its axis 72 is identical with axle 13.But coupling element 70 protrudes from lever 12 and comprises a drive unit 73, and this drive unit can rotate together with coupling element 70.Drive unit 73 meshes with a tooth section 74 by a gear, and this tooth section constructs regularly, and for example is fixed on fixed head 20.By the rotation of coupling element 70 around axle 71, guiding lever 7 and rotatable parts are moved, and therefore renovate 3 and move to an enable possition (Fig. 5 B) from make position (Fig. 5 A).
In the embodiment that has illustrated, only illustrated to be subjected to drive ground opening and closing panel fitting.Certainly also possibly, replace such scheme, manually opening and closing panel fitting.A clutch is set so as safety clutch between drive unit and coupling element, for example is arranged on the slip-clutch on transmission device, this slip-clutch allows the manual motion of rotatable parts with respect to fixed head.
Possiblely in addition be, will be connected with a commanding apparatus for the drive unit of panel fitting, therefore realize the opening and closing of panel fitting by button, switch, sensor or remote control.In addition, can be provided for feeler, wireless senser and other sensors and the switch of commanding apparatus on furniture body.