EP3461980A1 - Trigger unit and item of furniture with such a unit - Google Patents

Abstract

The invention relates to a trip unit for actuating two pieces of furniture relative to each other with a housing, with a relative to the housing between a first end position and a second end position movable plunger and a displaceably mounted in the housing tension element and a piece of furniture with two relatively movable furniture parts, wherein one of these pieces of furniture such triggering unit and an actuator are arranged and wherein on the other piece of furniture a plunger actuating element for the plunger of the trip unit and a coupling with the actuator driver are arranged. The tension element is coupled or couplable within the housing with a pivot element arranged in the housing and the plunger and has a connection end protruding from the housing. The pivoting element has an at least instantaneous plunger-side contact zone.

With the present invention, a trip unit is developed, which can be arranged independently of the position of an actuator on a piece of furniture.

Description

The invention relates to a trip unit for actuating two pieces of furniture relative to each other with a housing, with a mounted in the housing, relative to the housing movable between a first end position and a second end position ram, wherein the ram protrudes at least partially in the position in the first end position of the housing and with a displaceably mounted in the housing tension element and a piece of furniture with two relatively movable furniture parts, wherein on one of these pieces of furniture such a trip unit and an actuator are arranged and wherein on the other piece of furniture a plunger actuator for the plunger of the trip unit and a couplable with the actuator Driver are arranged.

From the WO 2013/173 853 A1 is a discharge device with a plunger-like ejection element and a discharge device with a charger connecting Bowden cable known. The ejector must be located in the area easily accessible by the operator.

The present invention has for its object to develop a trip unit, which can be arranged independently of the position of an actuator on a piece of furniture.

This problem is solved with the features of the main claim. For this purpose, the tension element is coupled or couplable within the housing with a housing arranged in the pivot member and the plunger and has a protruding from the housing terminal end. The pivoting element has an at least instantaneous plunger-side contact zone. A line defined by a pivoting line of the pivoting element and the respective plunger-side contact zone, oriented normal to the pivoting line tangent both at location of the plunger in the first end position and position of the plunger in the second end position the plunger on its housing-side contact zone or penetrates the plunger between the housing-side contact zone and a ram through opening of the housing. In addition, at least in the process in the retraction direction, the housing-side contact zone of the plunger is coupled to the pivot element on the plunger-side contact zone or with the tension element on the side of the plunger-side contact zone.

In the piece of furniture, the connecting end of the tension element is connected to an unlocking lever of the actuating device.

Furniture pieces with furniture pieces moving relative to one another are, for example, furniture carcasses with drawers or doors. For pieces of furniture equipped with actuators, the opening of the drawer or the door is triggered by manual pressing on this piece of furniture. This so-called over-pressing out of a closed operating end position leads to the partial opening of the furniture part relative to the furniture body. To trigger the actuator, a trip unit is used. This trip unit comprises a plunger, the retraction movement causes a retraction movement of a tension element, such as a pull wire. In this case, the trip unit can be arranged at an ergonomically favorable for the operator place. The tension member transmits the pulling motion to the actuator. This can be arranged independently of the ergonomics of a favorable for the opening movement location within the piece of furniture. This is for example in the area of the guides of a drawer.

Figur 1:

Möbelstück mit geöffneter Schublade;

Figur 2:

Innenraum des Möbelstücks;

Figur 3:

Querschnitt von Figur 1 mit Betätigungsvorrichtung;

Figur 4:

Querschnitt von Figur 1 mit Auslöseeinheit;

Figur 5:

Auslöseeinheit aus Figur 4 bei abgenommenen Gehäusedeckel;

Figur 6:

Gehäuseunterteil der Auslöseeinheit aus Figur 4 und 5;

Figur 7:

Gehäuseoberteil der Auslöseeinheit aus Figur 4;

Figur 8:

Schwenkelement;

Figur 9:

Isometrische Ansicht des Stößels von der Seite des Anschlagbolzens;

Figur 10:

Isometrische Ansicht des Stößels von der Seite des Führungsabschnitts;

Figur 11:

Betätigungsvorrichtung bei geöffneter Schublade;

Figur 12:

Führungsgehäuse-Unterteil;

Figur 13:

Betätigungsvorrichtung in der geschlossenen Betriebsendlage;

Figur 14:

Teilquerschnitt des Möbelstücks mit der Auslöseeinheit und mit der Schublade in der geschlossenen Betriebsendlage;

Figur 15:

Teilquerschnitt des Möbelstücks mit der Auslöseeinheit in der Überdrücklage;

Figur 16:

Betätigungsvorrichtung in der Überdrücklage;

Figur 17:

Betätigungsvorrichtung beim weiteren öffnen;

Figur 18:

Variante der Auslöseeinheit bei ausgefahrenem Stößel;

Figur 19:

Variante aus Figur 18 bei eingefahrenem Stößel;

Figur 20:

Lagergabel;

Figur 21:

Variante aus Figur 18 bei Überlast;

Figur 22:

Weitere Variante der Auslöseeinheit bei ausgefahrenem Stößel;

Figur 23:

Variante aus Figur 22 bei eingefahrenem Stößel;

Figur 24:

Stößel aus Figur 22;

Figur 25:

Schwenkelement aus Figur 22.

Further details of the invention will become apparent from the dependent claims and the following description of schematically illustrated embodiments.

FIG. 1:

Piece of furniture with opened drawer;

FIG. 2:

Interior of the furniture;

FIG. 3:

Cross section of FIG. 1 with actuator;

FIG. 4:

Cross section of FIG. 1 with trip unit;

FIG. 5:

Trigger unit off FIG. 4 with removed housing cover;

FIG. 6:

Housing base of the trip unit off FIG. 4 and 5 ;

FIG. 7:

Housing top of the trip unit off FIG. 4 ;

FIG. 8:

Pivot member;

FIG. 9:

Isometric view of the plunger from the side of the stop pin;

FIG. 10:

Isometric view of the ram from the side of the guide section;

FIG. 11:

Actuator with open drawer;

FIG. 12:

Guide housing lower section;

FIG. 13:

Actuator in the closed operating end position;

FIG. 14:

Partial cross-section of the furniture with the trip unit and with the drawer in the closed operating end position;

FIG. 15:

Partial cross section of the piece of furniture with the trip unit in the overpressure position;

FIG. 16:

Actuating device in the overpressure position;

FIG. 17:

Actuator when further open;

FIG. 18:

Variant of the trip unit with extended ram;

FIG. 19:

Variant off FIG. 18 when the ram is retracted;

FIG. 20:

Bearing fork;

FIG. 21:

Variant off FIG. 18 in case of overload;

FIG. 22:

Further variant of the trip unit with extended ram;

FIG. 23:

Variant off FIG. 22 when the ram is retracted;

FIG. 24:

Plunger off FIG. 22 ;

FIG. 25:

Swing element off FIG. 22 ,

The FIG. 1 shows a piece of furniture (10) with two relatively movable furniture pieces (11, 21). A first piece of furniture (11) is a furniture body (11). This has in the exemplary embodiment a bottom (12), two side walls (13, 14), a ceiling (15) and these parts connecting and stabilizing the rear wall (16), see. the Figures 2-4 ,

In the furniture body (11) the second piece of furniture (21) is stored and guided. This second piece of furniture (21) is in the embodiment, a drawer (21). Of this drawer (21) in the figures, only the front plate (22) and the guide rails (24) are shown. The drawer (21) is between in the Figures 1 - 4 illustrated open position and a position hereinafter referred to as a closed operating end position, see. the Figures 13 and 14 , movable. The Here referred to as the open position position of the drawer (21) relative to the furniture body (11) is in this embodiment, no end position of the drawer (21). The drawer (21) can be pulled out of this open position, for example manually further in an opening direction (25). This opening movement is limited for example by means of a rail stop.

When referred to as the closed operating end position of the drawer (21) relative to the furniture body (11), for example, a residual gap (181) of three millimeters between the front panel (22) and the furniture body (11). In the embodiment, the dimensions of the front panel (22) in a plane normal to the closing direction (26) of the drawer (21) correspond to the outer dimensions of the furniture body (11) in a plane parallel to this plane. But it is also conceivable to choose the dimensions of the front panel (22) so that it is surrounded in the closed operating end position of the furniture body (11). For example, then the outside (23) of the front panel (22) is flush with the visible edge surface (17) of the ceiling (15). The front of the piece of furniture (10) is then in the closed operating end position, e.g. in a plane. From the closed operating end position, the drawer (21) is inclined a small amount, e.g. by up to two millimeters, in a normal to the furniture body (10) oriented closing direction (26) movable. This stroke of the drawer (21) is referred to below as Überdruckhub.

Instead of being a drawer (21), the furniture piece part (21) which can be moved relative to the furniture body (11) can also be designed as a sliding door, as a hinged door, as a pivoting insert, etc.

In the in the Figures 1 - 4 illustrated piece of furniture (10) is the drawer (21) with two guide rails (24) along two on the furniture body (11) arranged guide rails (18) extendable and retractable. The guide rails (18) and the guide rails (24) are arranged in the lower region of the piece of furniture (10). In the FIG. 3 showing a cross section of the piece of furniture (10) with a horizontal sectional plane, the two guide rails (18) are shown in a plan view of the bottom (12). In the FIG. 4 , which is directed at the same cutting plane in the direction of the ceiling (15) of the piece of furniture (10), no guide rails (18) are visible.

The FIG. 2 shows the piece of furniture (10) with the front panel removed (22). The guide rails (18) are attached to the underlying bottom (12) of the furniture body (11). Also on the bottom (12) of the furniture body (11) - for example, between the guide rails (18) - an actuating device (30) is arranged. A driver (27) which can be coupled to the actuating device (30) is arranged, for example, on the guide strip (24) of the drawer (21) which is adjacent to the actuating device (30). The driver (27) can also be attached to the drawer body.

On the ceiling (15) of the furniture body (11) a triggering unit (90) is arranged. This comprises a on the ceiling (15) fixed housing (91) from which a plunger (121) protrudes. The housing (91) is in this case, for example, flush with the visible edge surface (17) of the ceiling (15). The plunger (121) points in the direction of the front plate (22). In the exemplary embodiment, the plunger (121) protrudes from the furniture body (11).

The housing (91) of the trip unit (90) is in the interior (19) of the furniture body (11), for example by means of a Bowden cable (150) connected to the actuating device (30). In the exemplary embodiment, the Bowden cable (150) runs along the inside of the ceiling (15) in the direction of the rear wall (16). In an arc (151) he goes into a perpendicular along the rear wall (16) in the direction of the bottom (12) extending rear wall portion (152). In a further arc (153), the Bowden cable (150) extends to a bottom portion (154) fixed to the bottom (12), which leads to the actuating device (30). The Bowden cable (150) has, for example, a wire-shaped tension element (155) which is surrounded by a casing (156). The tension element (155) can also be used without sheath (156). In the exemplary embodiment, the tension element (155) is a wire strand bundle with a diameter of one millimeter. The sheath (156) here has an outer diameter of five millimeters.

It is also conceivable to use both the actuating device (30) and the release unit (90) in other areas of the furniture body (11), e.g. on a side wall (13; 14) and the floor (12), on two side walls (13, 14) or on a side wall (13; 14) and the ceiling (15) to be arranged. Also, both the trip unit (90) and the actuator (30) on the ceiling (15), the bottom (12) or on a side wall (13, 14) may be arranged.

The actuator (30) and the trip unit (90) may also be attached to the drawer (21). In this case, the driver (27) on the furniture body (11) is arranged. The plunger (121) can then point in the direction of the rear wall (16) and contact them if necessary.

The FIGS. 5 to 10 show the trip unit (90) and some items. The housing (91) of the trip unit (90) has a housing lower part (92) and a housing upper part (93). The two parts (92, 93) are joined together, for example, by means of two locking screws (94). From a front wall (95) of the housing (91) protrudes through a first housing opening (96) of the plunger (121). This housing opening (96) is also referred to below as a ram insertion opening (96). This end wall (95) is referred to below as the front wall (95) of the housing (91). For example, at the opposite end wall (97), hereinafter referred to as the rear wall (97), the Bowden cable (150) is arranged on a second housing opening (98). This second housing aperture (98) is also referred to below as the tension element breakthrough opening (98). However, the housing (91) may also have at another end wall an opening for the tension element (155) of the Bowden cable (150). For attachment to the furniture body (11), the housing (91) has two through holes (99).

In the FIG. 5 the trip unit (90) is shown with removed housing cover (93). In the housing lower part (92) of the plunger (121) is mounted linearly displaceable. The plunger (121) contacts a pivoting lever (141), which communicates with the pull-out element (155) led out of the housing (91). Outside the housing (91), the tension element (155) is guided in the casing (156) of the Bowden cable (150).

That in the FIG. 6 shown lower housing part (92) has an example just trained housing bottom (101) from which an inner wall (102) protrudes. The inner wall (102) has an eg constant distance to the outer contour of the housing bottom (101). For example, it has a constant height. In the area of the first housing opening (96), the inner wall adjoins a guide trough (103). The second housing opening (98) is limited by means of an anti-rotation mount (104).

On the housing bottom (101) a U-shaped plunger guide (105) is arranged. It is formed on the housing bottom (101) and on the inner wall (102). The tappet guide (105) is parallel to the guide trough (103). For example, the imaginary center lines of both guides (103, 105) can be aligned.

The illustrated lower housing part (92) further comprises a pivot pin (106). This is e.g. is cylindrical and protrudes normal to the housing bottom (101) in the housing interior (107).

Adjacent to the second housing opening (98), a support wall (108) is arranged. This aligns with the second housing opening (98) and limited with this the anti-rotation recording (104).

The FIG. 7 shows the housing cover (93). This is similar to the housing bottom (92). It has two mutually parallel tappet guide rails (111). A pivot pin receptacle (112) receives the pivot pin (106) when the housing (91) is mounted.

In the FIG. 8 the pivoting element (141) is shown. This has the shape of a pivoting lever (141) with two lever arms (142, 143). In the presentation of the FIG. 8 the two lever arms (142, 143) are aligned with each other. However, the two lever arms (142, 143) may also include an angle not equal to 180 degrees. At the apex of the two lever arms (142, 143), the pivot member (141) has a pivot pin receptacle (144). When installed, the center line of this pivot pin receptacle (144) forms a pivoting pole line (171) of the pivotably mounted pivoting element (141). The Indian FIG. 5 overhead lever arm (142) is hereinafter referred to as ram-side lever arm (142). He has in the embodiment half the length of the second lever arm (143). The latter is referred to below as the free end (157) shown terminal end (157) of the tension element (155) facing lever arm (143).

The plunger-side lever arm (143) has a through hole (145) for receiving a plunger pin (122). The inner wall (146) of this through hole (145) has a plunger-side contact zone (147). This is the contact line of the plunger pin (122) with the inner wall (146) of the through hole (145) in this embodiment. This contact zone (147) migrates along the inner wall (146) during pivoting of the pivoting element (141).

The lever arm (143) facing the connection end (157) of the tension element (155) has a nipple receptacle (148) with feed-through openings (149) on both sides. In the assembled state, for example, sits in the FIG. 5 illustrated mounting nipple (158) in the nipple receptacle (148). In this mounting nipple (158) has an end (159) of the tension element (155) is attached. The tension member (155) lies in the passage recesses (149).

The FIGS. 9 and 10 show the plunger (121). This has a stop pin (123) and an integrally formed guide portion (124). The stop pin (123) is cylindrical. Its projecting end has a plane to the longitudinal axis of the stop pin (123) oriented flat stop surface (125). The stopper bolt (123) may also have an elliptical, square, rectangular, polygonal, etc. cross-section. The length of the stop pin (123) is for example one third of the total length of the plunger (121).

The guide portion (124) is arranged, for example, in a transverse direction offset from the longitudinal axis of the stop pin (123). In the representations of the FIGS. 9 and 10 the guide portion (124) has a rectangular cross-section. On the side facing the pivot member (141) he carries the plunger pin (122). This plunger pin (122) is cylindrical, for example. It has a plunger contact zone (126) which can be contacted with the plunger-side contact zone (147) of the pivoting element (141) and which is arranged in the housing (91). This plunger contact zone (126) is referred to below as the housing-side contact zone (126) of the plunger (121). Instead of being part of a cylindrical surface of a plunger pin (122), the housing-side contact zone (126) may also be formed as a flat or curved surface. The length of the plunger (121) and / or the stop pin (123) may be adjustable.

The plunger (121) may also be fixedly connected to the pivoting element (141). For example, the housing (91) then has a slot-like plunger passage opening (96). The imaginary contact surface between the plunger (121) and the pivoting element (141) results in this embodiment from the sectional surface of the common plane spanning, the plunger (121) in its longitudinal extent penetrating with the normals intersecting the Schwenkpollinie (171) mentioned straights.

In the FIG. 11 an actuator (30) is shown. In the exemplary embodiment, this is designed as a combined pull-in and pull-out device (30). From a guide housing (31) protrude - offset in the longitudinal direction (5) to each other - a driving element (39) and a locking lever (47) out. In the guide housing (31) are a collection device (32) and a cooperating with this extraction device (33). It is also conceivable to arrange only a pull-out device (33) in the guide housing (31). In this representation - as well as in the representations of the Figures 13 . 16 and 17 - The guide housing (31) is shown with removed guide housing cover (34). The oriented in the direction of the closed operating end position closing direction (26) points to the right. This is the closing direction (26) of the piece of furniture (10), cf. FIG. 1 , The opening direction (25) facing away from the closed operating end position points to the left. Both the opening direction (25) and the closing direction (26) are oriented in the longitudinal direction (5) of the actuating device (30).

The collection device (32) has in the exemplary embodiment a combined acceleration and deceleration device (35). Furthermore, it comprises a guide carriage (36) and a coupling carriage (37). The intake device (32) has a first energy store (38), which loads a carrier element (39) in the direction of the closed end position. In the exemplary embodiment, the first energy store (38) consists of two mutually parallel tension springs, which are posted on the guide carriage (36) and on the guide housing (31). In addition, the collection device (32) has a delay device (41). This comprises a in the guide carriage (36) mounted and in the guide housing (31) supported cylinder-piston unit (42). In the presentation of the FIG. 11 the first energy store (38) of the actuator (30) is charged. The driving element (39) is positively and / or positively secured in a driving element parking position (44). The piston rod (43) of the cylinder-piston unit (42) is extended.

The extension device (33) comprises, in addition to the already mentioned entrainment element (39), the guide carriage (36) and the coupling carriage (37), a second energy store (45) which is held on the guide housing (31) and on a detent lever support member (46) , The detent lever support member (46) supports a detent lever (47). In the presentation of the FIG. 11 is designed as a tension spring (45) formed second energy storage (45) of the actuating device (30) to two deflection rollers (48) and discharged, for example, to a residual voltage value. The detent lever support member (46) via the coupling carriage (37), a Wälzgetriebe (49) and the guide carriage (36) with the driving element (39) can be coupled. In one embodiment of the actuating device (30) without retraction device (32), for example, the first energy storage (38) and the cylinder-piston unit (42) omitted.

Furthermore, the extension device (33) has an unlocking unit (81). This comprises one by means of a return spring (82), e.g. a tension spring (82) loaded in the guide housing (31), which is connected by means of a transmission rod (84) to a wedge slide (85) mounted longitudinally displaceably in the guide housing (31). On the return spring (82) facing away from the Entsperrhebels (83), the connection end (157) of the tension element (155) is attached. For example, in the middle of the release lever (83) in a guide housing (31) molded pivot pin (62) is arranged.

The FIG. 12 shows, for example, the guide housing lower part (61) of the guide housing (31). The guide housing cover (34) is constructed, for example, largely mirror images of this. In the guide housing lower part (61) are a first guide track system (63) for guiding the driving element (39) and a second guide track system (64) for guiding the locking lever carrier part (46) arranged. As further guide grooves, a wedge slide guide (65), a coupling slide guide (66) and a guide slide guide (67) are embossed in the guide housing lower part (61). When mounted guide housing (31) these guides (63 - 67) are arranged in mirror image in the opposite guide housing lower part (61) and in the guide housing cover (34).

The first guide track system (63) has a guide track section (71) oriented in the longitudinal direction (5) and a holding section (72) enclosing it at an obtuse angle. When mounted actuating device (30) in this first guideway system (63), the entrainment element (39) between the parking position (44) and an in the closing direction (26) oriented end position movable.

By means of the second guide track system (64), the locking lever carrier part (46) is guided in the mounted state. The second guideway system (64) has a straight guide groove section (73) oriented in the longitudinal direction (5), on which, in the illustration of FIG FIG. 12 an obliquely downward pointing short Führungsnutabschnitt (74) connects. The short guide groove section (74) opens eg centrally into a release section (75) oriented parallel to the straight guide groove section (73). The length of the release section (75) in the exemplary embodiment is 4% of the length of the straight guide groove section (75). A connecting portion (76) of the second guide rail system (64) connects the release portion (75) with the straight guide groove portion (73). This connecting portion (76) encloses an angle of, for example, 30 degrees with the longitudinal direction (5).

In the guide housing an adjusting nut (78) and an adjusting slide (79) are further arranged for end position adjustment and adjustment.

When assembling the trip unit (90), for example, first the pivoting element (141) is inserted into the lower housing part (92). Thereafter, the plunger (121) is inserted so that the plunger pin (122) in the plunger pin receptacle (145) sits and the stop pin (123) protrudes from the lower housing part (92).

The tension member (155) is retracted into the sheath (156). At one end of this Bowden cable (150) a set screw sleeve (161) and a lock nut (162) is mounted. Furthermore, a locking nut (163) is screwed onto the adjusting screw sleeve (161). Another device for length adjustment of the Bowden cable (150) is conceivable.

In the nipple receptacle (148) of the pivoting element (141) of the mounting nipple (158) is inserted with the tension element (155) connected thereto. The locking nut (163) is inserted into the anti-rotation mount (104). The lock nut (162) is then outside the housing (91). Now, the housing cover (93) can be placed and the housing (91) e.g. be closed by means of two screw plugs (94). Another sequence of assembly is conceivable.

The trip unit (90) can now be mounted, for example, in the upper region of the furniture body (11) on the inside of the ceiling (15). The entire housing (91) is within the furniture body (11), if necessary, it may be flush with the front of the furniture body (11). The plunger (121) protrudes the furniture body (11) out. The free end (157) of the tension element (155) protrudes into the interior (19) of the furniture body (11).

When assembling the actuator (30), for example, the entrainment member (39), a Wälzrad (51) of the Wälzgetriebes (49) and the cylinder-piston unit (42) in the guide carriage (36) are used. In addition, the first tension spring (38) in the guide carriage (36) and in the guide housing lower part (61) is attached. In the guide housing lower part (61) continue the coupling slide (37) and a rack (52) are inserted so that the rack (52) and a toothing (53) of the coupling carriage (37) with the Wälzrad (51) mesh. The coupling slide (37), the Wälzrad (51) and the rack (52) thus form the Wälzgetriebe (49).

The detent lever (47) is e.g. spring loaded in the locking lever support member (46) used. The second tension spring (45) is inserted into the guide housing lower part (61) and deflected around the deflection rollers (48) equipped, for example, with damping rings. The second tension spring (45) is passed through a spring recess of the coupling carriage (37) and secured to a spring seat (54) of the locking lever support member (46). The detent lever support member (46) is inserted into the guide housing (31) so that a coupling stop (55) in the closing direction (26) in front of a coupling surface of the coupling carriage (37).

Now the wedge gate (85), the release lever (83), the transmission rod (84) and the return spring (82) can be used. Here, for example, the transmission rod (84) is inserted without contact in a rod recess of the coupling carriage (37). The connection end (157) of the tension element (155) is fastened to the release lever (83). The Bowden cable (150) is mounted such that the sheath (156) rests against a support system (57) of the guide housing (31). Finally, the guide housing cover (34) can be placed and secured. This assembly can be done in a different order.

The actuating device (30) is mounted, for example, on the inside of the bottom (12) of the furniture body (11). In this case, the closing direction (26) points in the direction of the rear wall (16) of the furniture body (11). At the e.g. relative to this movable drawer (21), for example, a U-shaped designed as a double rod driver (27) is arranged and aligned relative to the actuator (30). The two driving rods (28, 29) of the driver (27) are offset from each other in the longitudinal direction (5). In the closing direction (26) front Mitnehmerstab (28) is shorter than the in the opening direction (25) pointing Mitnehmerstab (29). The driver (27) can also be rod-shaped with a single driver rod (28, 29).

In the interior (19) of the furniture body (11) of the Bowden cable (150) of the trip unit (90) to the actuator (30) is laid. Here he is, for example, the shell (156) on the ceiling (15), fixed to the rear wall (16) and the bottom (12). To adjust the Bowden cable (150), for example when the plunger (121) is pushed in, the adjusting screw sleeve (161) is moved to the lock nut (162) until the actuating device (30) triggers.

When the drawer is open, cf. the Figures 1 - 4 , is the trip unit (90) in the in the FIG. 5 position shown. The plunger (121) protrudes by an amount of, for example, three millimeters from the housing (90). Here he is in the exemplary embodiment by this amount from the furniture body (11). The pivotal element (141) is in a position in which the plunger-side contact zone (147) has a smaller distance from the front wall (95) penetrated by the plunger (121) than the pivoting pole line (171). A straight line through the plunger-side contact surface (147) which intersects the pivoting pin line (171) is tangent to the plunger (121) on its housing-side contact zone (126). This straight line is for example normal to the pivot axis of the pivoting element (141) forming pivoting pole line (171) in a plane parallel to the housing bottom (101).

The contact zone of the pivoting element (141) facing the connection end (157) of the tension element (155), the nipple receptacle (148), is closer to the rear wall (97) penetrated by the tension element (155) than the pivoting pole line (171). In this exemplary embodiment, the tension element (155) is connected to the pivoting element (141) and thus coupled to it and to the tappet (121).

In the actuator (30) cf. FIG. 11 , is the driver (27) in the opening direction (25) offset from the locking lever (47). The second energy store (45), the return spring (82) and acting on the locking lever (47) leg spring are relieved. The first energy store (38) is loaded.

When closing the drawer, the driver (27) contacts the locking lever (47). The locking lever (47) is displaced in the closing direction (26) along the straight Führungsnutabschnitts (73). The locking lever (47) in this case takes the locking lever carrier part (46), so that the second tension spring (45) is tensioned. The detent lever support member (46) detaches from the coupling carriage (37). The collection device (32) remains at rest.

The FIG. 13 shows the actuator (30) in a closed operating end position. The latching lever (47) and the latching lever support member (46) are pivoted, wherein the guide pin (58) of the latching lever (47) in the short, eg bent Führungsnutabschnitt (74) sits. The guide pin (58) is there clamped and locked by means of the wedge slide (85). The second tension spring (45) is tensioned.

The driver (27) has triggered the collection device (32). The entrainment element (39) is swung open. During the process, the relaxing first tension spring (38) loads the carrier element (39) via the guide carriage (36), which conveys the carrier (27) in the direction of the closed operating end position. Here, in the cylinder (59) of the cylinder-piston unit (42), a piston attached to the piston rod (43) compresses a displacement space, so that the acceleration applied by means of the first tension spring (38) counteracts a deceleration.

The closed operating end position is reached when either the coupling carriage (37) abuts the detent lever support member (46) or the front panel (22) to the plunger (121).

In the first case, the blocked detent lever support member (46) prevents another method of the coupling carriage (37). The guide carriage (42) and the entrainment element (39) can now proceed no further in the closing direction (26). The front plate (22) may in this case still have a residual gap to the plunger (121).

In the second case prevents the biased return spring (82) via the Bowden cable (150) retraction of the plunger (121) and thus a further retraction of the drawer (21). The coupling carriage (37) can still have a small residual gap from the locking lever support member (46). The actuating device (30) can also be adjusted so that when closing the drawer (21) both conditions are met simultaneously.

In the closed operating end position, the entrainment element (39) has a small residual distance from the end of the straight guide track section (73). The piston rod (43) of the cylinder-piston unit (42) is almost completely retracted. The first tension spring (38) is largely relaxed. The extension device (33) is stretched.

The FIG. 14 shows a partial cross section of the piece of furniture (10), in which the front plate (22) is in the closed Betriebsendlage. The front wall (22) is in this illustration by a gap (181) spaced from the furniture body (11). In this closed operating end position, the plunger (121) can contact the front plate (22). But he can also have a small residual distance, for example, a millimeter, from the front panel (22). The front plate (22) can load the plunger (121) in the retraction direction (127), so that the plunger (121) is retracted by up to one-third of its stroke.

In order to open the drawer (21), the operator standing in front of the piece of furniture (10) pushes against the front panel (22) of the drawer (21). In this case, the manual force of the operator, for example, on the upper portion of the front panel (22). The front plate (22) is moved in the closing direction (26). It loads the plunger (121), for example, in this area of the front panel (22), for example, on the front panel (22). The front plate (22) is in this embodiment, the plunger actuating element (22). The plunger (121) is in the retraction direction (127), for example, linearly shifted. The retraction direction (127) is parallel to the closing direction (26).

In the FIG. 15 is a cross section of the piece of furniture (10) with the same sectional plane as in the FIG. 14 shown, in which the front plate (22) from the closed operating end position against the furniture body (11), that is pressed into the overpressure position. The protruding from the ram through opening (96) of the housing (91) length of the plunger (121) is for example one third of the original length. Between the front panel (22) and the furniture body (11) there is now only a small residual gap. In this position, the front panel (22) also rest on the furniture body (11).

The trip unit (90) is in the FIG. 15 shown with removed housing cover (93) in the overprint. The plunger (121) is retracted. The pivoting element (141) is pivoted in this illustration counterclockwise around the pivoting pole line (171). A straight line connecting the pivoting pole line (171) and the tappet-side contact zone (147) of the pivoting element (141) also touches the contact zone (126) of the tappet (121) lying in the housing (91) in this overpressing position. This line is normal to the Schwenkpollinie (171).

Also, the contact zone facing the connection end (157) of the tension element (155) pivots in the same pivoting direction by the same angular amount as the plunger-side contact zone (147). Due to the larger lever arm of the path translator (173), the path traveled by the second contact zone during pivoting of the pivoting element (141) is, for example, twice as long as the path of the first contact zone (147). The tension member (155) is pulled relative to the housing (91) and the shell (156) in the direction of the housing interior (107).

In the FIG. 16 the actuator (30) is shown in the push-over position. The tension member (155) is tensioned and has pivoted the release lever (83) against the force of the return spring (82) about the pivot pin (62). The sheath (156) is supported on the support system (57) of the guide housing (31).

The release lever (83) pulls the wedge slide (85) in the opening direction (25) by means of the transmission rod (84). The second energy storage (45) pivots due to its point of application of force the locking lever support member (46) from in the FIG. 13 shown position in the clockwise direction in the FIG. 16 shown location. The guide pin (58) moves into the release section (75). This movement can be supported by means of pulling hooks (86) of the wedge slide (85). These pull hooks (86) forcibly push the guide pin (58) out of the short guide groove section (74) into the release section (75).

As a result, the second energy store (45) discharges and pulls the locking lever support part (46) and the locking lever (47) in the opening direction (25). The guide pin (58) moves along the release section (75). The coupling carriage (37) is pushed in the opening direction (25). The coupled via the Wälzgetriebe (49) guide carriage (36) pulls the driving element (39) and the drawer-side driver (27) also in this direction. At the same time, the guide carriage (36) loads the first energy store (38) that is being charged. The piston rod (43) of the cylinder-piston unit (42) is extended, for example, spring-loaded.

When moving the guide pin (58) along the release portion (75), the load of the wedge slide (85) is released. The return spring (82) pivots the release lever (83) in the starting position. During this pivoting back the Entsperrhebel (83) moves the wedge slide (85) by means of the transmission rod (84) in the closing direction (26). At the same time, the release lever (83) pulls the pulling element (155) relative to the guide housing (30) and sheath (156) in the direction of the guide housing interior (68).

In the release unit (90), the tension element (155) pulls the contact zone of the pivot element (141) facing the connection end (157) of the tension element (155) in the direction of the tension element leadthrough opening (98). The pivot member (141) is pivoted against the trigger pivoting direction. The plunger-side contact zone (147) pushes the plunger (121) against the retraction direction (127) out of the housing (91). This movement takes place; until the wedge slide (85) has reached an end position or until the return spring (82) is relieved. The trip unit (90) has now again in the FIG. 5 reached position shown.

The further opening of the furniture part (21) is carried out by the further relaxing second tension spring (45). The FIG. 17 shows the actuator (30) with further open drawer (21). The detent lever support member (46) is further pulled in the opening direction (25). Here, it pulls on the coupling slide (37) and the Wälzgetriebe (49) the guide carriage (36) also in this direction. The driving element (39) pulls the driver (27) relative to the furniture body (11) in the opening direction (25). The first energy store (38) is tensioned. The piston rod (43) of the cylinder-piston unit (42) is extended. The trip unit (90) remains in its position.

As soon as the entrainment element (39) has reached the parking position (44), the drawer (21) can be manually opened further. Re-closing the drawer (21) takes place as described above.

It is also conceivable to open the actuating device (30) by pressing in the lower region of the front plate (22). Here, the driver (27) moves the entrainment element (39) relative to the furniture body (11). By the gear coupling, the locking lever support member (46) is moved, so that the guide pin (58) displaces the wedge slide (85). The further triggering and opening takes place as described above.

In an arrangement of the trip unit (90) and the actuator (30) on the drawer (21), the direction designated in the first embodiment as the closing direction of the actuator is oriented in the opening direction of the drawer. The direction referred to as the opening direction of the actuator in the first embodiment is directed in the closing direction of the drawer.

The FIGS. 18 and 19 show a variant of a trip unit (90) in the extended and in the retracted end position of the plunger (121). This is largely structured as described in connection with the first embodiment. It can be used, for example, together with the above-described actuator (30).

The pivoting line (171) of the pivoting element (141) is mounted in a bearing fork (113). In the FIG. 20 the storage fork (113) is shown. This is Y-shaped and has a central spring pin (114), of which two bearing brackets (115) stand out. Through both bearing brackets (115) passes through a cylindrical recess (116). When the tripping unit (90) is mounted, pivoting pins of the swiveling element (141) are seated in this recess.

The spring pin (114) carries with the housing (91) built-in bearing fork (113) a compression spring (117). This is supported on the normal to the retraction direction (127) of the plunger (121) oriented rear wall (97). Parallel to the retraction direction (127) in the housing (91) guide strips (119) and a stop bar (118) for the bearing fork (115) impressed.

The assembly and assembly of the trip unit (90) in the piece of furniture (10) takes place as described above. During normal opening and closing, the pivoting pole line (171) does not change its position relative to the housing (91).

If the drawer (21) slammed, the pivoting element (141) is moved in the retraction direction (127) when retracting the plunger (121), cf. FIG. 21 , In this case, the compression spring (117) is compressed. This overload protection (172) prevents damage to the trip unit (90), for example, when suddenly sliding the drawer (21). The pressure spring (117) which relieves itself after the impact load can, for example, push the drawer (21) back into the closed operating end position.

The stop bar (118) can be designed to be adjustable in the retraction direction (127) of the plunger (121) and counter to this direction. The adjustment takes place for example by means of an adjusting screw arranged on the front wall (95) of the housing (91). Hereby, the stroke of the plunger (121) can be adjusted. In such an embodiment, a length adjustment of the Bowden cable (150) can be omitted.

In the Figures 22-25 a further variant of a tripping unit (90) designed as a remote tripping unit (90) is shown. This show the FIGS. 22 and 23 the trip unit (90) with removed housing cover (93). The arrangement of the housing openings (96, 98) for the plunger (121) and for the tension element (155) correspond to the arrangements in the first embodiment.

The plunger (121) is linearly movable in this embodiment in the housing (91) between a first end position and a second end position. In both said end positions corresponds to the position of the plunger (121) relative to the housing (91) of the position of the plunger (121) in the first embodiment.

The FIG. 24 shows the plunger (121) as a single part. He has a projecting from the housing (91) stop pin (123) and a guided in the housing (91) guide portion (124). At its in the housing (91) arranged end of the plunger (121) has a receiving pin (128). On this sits rotatably a plunger disc (129). This has a circular outer contour and on its peripheral surface (131) has a guide groove (132). Instead of a plunger disc (129), the plunger (121) may also have a sliding segment. Between the guide portion (124) and the front wall (95) sits on the stopper bolt (123) a compression spring (133). This compression spring (133) loads the plunger (121) in the retraction direction (127).

In the housing (91) is mounted as a pivoting element (141) has a swash plate (141). This is in the embodiment identical to the plunger disc (129) formed. A housing pin forms the pivot pin (106) of the swashplate (141). The imaginary pivoting line (171) is normal to the plane of a Perimeter of the pivot member (141) and is coaxial with the peripheral surface of the pivot member (141).

The tension element (155) is in the illustrations of FIGS. 22 and 23 above the plunger (121) in the housing interior (107) attached to an adjusting sleeve (164). The position of the adjusting sleeve (164) in the retraction direction (127) can be adjusted by means of an adjusting screw (165). From this housing-side attachment (166), the tension element (155) is guided around the ram plate (129). Here, the tension element (155) engages in the representation of Figures 21 and 22 the plunger disc (129) counterclockwise. In an opposite direction, the puller wire (155) is guided around the swashplate (141). From the swashplate (141) the tension element (155) extends through the housing aperture (98) and the sheath (156) of the Bowden cable (150) to the actuating device (30). There, the connection end (157) of the tension element (155) is attached, for example, to the release lever (83). The actuating device (30) is designed, for example, as described in connection with the first embodiment.

In this embodiment, the tension member (155) is coupled by a frictional connection with both the pivot member (141) and the plunger (121). The pivot member (141) has a first ram-side force application zone (147). This instantaneous force application zone lies on a straight line intersecting the pivoting pole line (171) through the extended plunger (121). A second force application zone of the pivot element (141) faces the connection end (157) of the tension element (155).

When pressing the front panel (22) to open the drawer (21), the plunger (121) relative to the housing (91) in the retraction direction (127) retracted. The compression spring (133) is relieved. The housing-side contact zone (126) of the plunger (121) - in the exemplary embodiment, this is a region of the circumferential groove (131) of the plunger disc (129) - is coupled to the tension element (155). This clutch is located on the side of the plunger-side contact zone (147) with respect to the pivot member (141). The plunger disc (129) acts as a path translator (173), so that the amount of the stroke of the tension member (155) between the plunger disc (129) and the swash plate (141) corresponds to twice the amount of plunger stroke. The pivoting element (141) pivots in the representation of FIGS. 22 and 23 counterclockwise. The plunger-side contact zone (147) of the pivoting element (141), which lies on an imaginary tangent to the swashplate (141) and the plunger disc (129), moves counterclockwise relative to the pivoting pole line (171). The tension element (155) is pulled in the direction of the housing interior (107). For example, the actuating device (30) connected to the tension element (155) is triggered.

In the retracted end position of the plunger (121), cf. FIG. 23 , the pusher spring (133) is relaxed. The plunger disc (129) has moved the tension element (155) in this illustration to the left. The pivoting member (141) is pivoted counterclockwise about the pivoting pole line (171). A straight line through the pivoting line and the instantaneous ram-side contact zone (147) penetrates the ram (121) in the region between the housing-side contact zone (126) of the ram (121) and the ram through-opening (96) of the housing (91).

When extending the drawer (21), the release lever (83) of the actuator (30) by means of the return spring (82) is returned to its original position, as described above. The release lever (83) pulls the tension element (155) towards the actuator (30). The pivoting element (141) is made in the FIG. 23 shown pivoted clockwise about the Schwenkpollinie (171). Furthermore, the tensile element (155), which is loaded with tension, presses the plunger (121) outward in the opposite direction to the retraction direction (127). Here, in the exemplary embodiment, the plunger spring (133) is compressed and prevents the plunger (121) from falling out of the housing (121). Once the return spring (82) of the actuator (30) has again reached its relaxed position - this may still have a residual stress - reached, the trip unit (90) has their in the FIG. 22 reached position shown. The plunger (121) is now back in the extended end position shown in Figure 22.

The tension member (155) may also be housed in the housing (91) e.g. be guided largely straight between the housing-side attachment (166) and the pivot member (141) and between the pivot member (141) and the second housing opening (98). In the extended end position, the plunger (121) can contact the tension member (155) or a small distance, e.g. up to a third of the ram stroke. Both in the first end position of the plunger (121) and in the second end position of the plunger (121), the straight line penetrates or tangent through the pivoting pole line (171) and the instantaneous plunger-side contact zone (147) between the tension element (155) and the pivoting element ( 141) the plunger (121). This straight line, which is normal to the pivoting line (171), cuts the plunger (121) e.g. between the plunger contact zone (126) and the first housing opening (96), so that the plunger (121) is loaded by the tension element (155) largely free of lateral forces.

It is also conceivable to arrange the housing-side attachment (166) of the tension element (155) on the plunger (121). The arrangement of the pivoting element (142) relative to the plunger (121) takes place then as described above. Also, the pulling element (155) on the pivoting element (141) may be interrupted. For example, the connection between the housing-side contact zone (126) of the plunger (121) and the plunger-side contact zone (147) is then formed as a separate pull wire. The tension member (155) between the pivot member (141) and the actuator (30) is then formed as described in connection with the first embodiment.

Combinations of the individual embodiments are conceivable. The trip unit (90) can also be combined with other devices.

LIST OF REFERENCE NUMBERS

5

longitudinal direction

10

furniture

11

Furniture piece, furniture body

12

ground

13

Side wall

14

Side wall

15

ceiling

16

rear wall

17

Visible edge surface of (15)

18

guide rails

19

Interior of (11)

21

Furniture piece, drawer

22

Front panel, ram actuator

23

Outside of (22)

24

guide rails

25

opening direction

26

closing direction

27

takeaway

28

Carrier rod from (27)

29

Carrier rod from (27)

30

Actuator, combined feeder and extension device

31

guide housing

32

retraction device

33

extracting device

34

Guide cover

35

combined acceleration and deceleration device

36

guide carriage

37

coupling carriage

38

first energy storage, first tension spring

39

driving element

41

delay means

42

Cylinder-piston unit

43

piston rod

44

Driving element parking position

45

second energy storage, second tension spring

46

Locking lever support member

47

locking lever

48

guide rollers

49

Rolling gear

51

rolling wheel

52

rack

53

Interlocking of (37)

54

Spring seat of (46)

55

Coupling stop of (46)

57

Supporting system of (31)

58

Guide pins from (47)

59

cylinder

61

Guide housing lower part

62

pivot pin

63

first guideway system

64

second guideway system

65

Wedge slide guide

66

Coupling carriage guide

67

Guide carriage guide

68

Guide housing interior

71

guide section

72

holding section

73

straight guide groove section

74

short guide groove section

75

release section

76

connecting portion

78

adjusting

79

Setting slider

81

Entsperreinheit

82

Return spring, tension spring

83

release lever

84

transmission rod

85

wedge slide

86

Hitch

90

Trip unit, remote trip unit

91

casing

92

Housing bottom

93

Housing top, housing cover

94

locking screws

95

Front wall, front wall

96

first housing opening, ram insertion opening

97

Front wall, rear wall

98

second housing opening, Zugelementdurchführungsöffnung

99

Through holes

101

caseback

102

inner wall

103

guide depression

104

Verdrehsicherungsaufnahme

105

tappet guide

106

pivot pin

107

Housing interior

108

retaining wall

111

Ram guide rails

112

Pivot pin receiver

113

bearing fork

114

spring pins

115

bearing bracket

116

recess

117

compression spring

118

stop bar

119

Leitleisten

121

tappet

122

plunger pin

123

stop pin

124

guide section

125

stop surface

126

Plunger contact zone, housing-side contact zone of (121)

127

retraction

128

spigot

129

ram disk

131

peripheral surface

132

guide groove

133

Compression spring, pusher spring

141

Swivel element, swivel lever, swivel disk

142

Lever arm, ram-side lever arm

143

Lever arm, second lever arm, the free end (157) of (155) facing lever arm

144

Pivot pin receiver

145

Through hole, push pin receptacle

146

inner wall

147

plunger-side contact zone

148

nipple unit

149

Durchführausnehmungen

150

Bowden

151

arc

152

Rear wall portion

153

arc

154

bottom section

155

Tension element, pull wire

156

shell

157

free end of (155), connection end

158

mounting nipple

159

End of (155)

161

screws sleeve

162

locknut

163

locknut

164

adjusting

165

adjustment

166

case-side attachment of (155)

171

Pivot line of (141)

172

Overload protection

173

displacement transducer

181

gap

Claims (10)

Tripping unit (90) for actuating two pieces of furniture (11, 21) relative to each other with a housing (91), with a in the housing (91) mounted, relative to the housing (91) movable between a first end position and a second end position ram (121) , wherein the plunger (121) projects at least partially out of the housing (91) in the first end position and with a tension element (155) displaceably mounted in the housing (91), characterized - That the tension element (155) within the housing (91) with a in the housing (91) arranged pivoting element (141) and the plunger (121) is coupled or can be coupled and a from the housing (91) protruding terminal end (157) . in that the pivoting element (141) has an at least instantaneous plunger-side contact zone (147), - That by a Schwenkpollinie (171) of the pivot member (141) and the respective plunger-side contact zone (147) defined, normal to the Schwenkpollinie (171) oriented straight both position of the plunger (121) in the first end position and position of the plunger (121) in the second end position, the plunger (121) tangent to its housing-side contact zone (126) or the plunger (121) between the housing-side contact zone (126) and a ram through opening (96) of the housing (91) penetrates and - That at least in the process in the retraction direction (127), the housing-side contact zone (126) of the plunger (121) with the pivot element (141) on the plunger-side contact zone (147) or with the tension element (155) the side of the plunger-side contact zone (147) is coupled. Trip unit (90) according to claim 1, characterized in that it comprises a path translator (173), so that at a Zugelementdurchführungsöffnung (98) of the housing (91) of the stroke of the tension element (155) is greater than the stroke of the plunger (121) the ram passage opening (96). Tripping unit (90) according to claim 1, characterized in that the pivoting element (141) opposite to the retraction direction (127) of the plunger (121) is spring-loaded. Tripping unit (90) according to claim 1, characterized in that the length of the plunger (121) is adjustable. Tripping unit (90) according to claim 1, characterized in that the housing-side contact zone (126) of the plunger (121) is designed as a non-positive coupling element. A piece of furniture (10) having two furniture parts (11, 21) which are movable relative to one another, wherein a release unit (90) according to claim 1 and an actuating device (30) are arranged on one of these furniture parts (11, 21), wherein on the other piece of furniture (21 11) a plunger actuation element (22) for the plunger (121) of the trip unit (90) and a to the actuator (30) coupled to driver (27) are arranged, characterized
in that the connection end (157) of the tension element (155) is connected to an unlocking lever (83) of the actuating device (30). Piece of furniture (10) according to claim 6, characterized in that the portion of the tension element (155) between the triggering unit (90) and the actuating device (30) is designed as a Bowden cable (150) with a longitudinal adjustment. Piece of furniture (10) according to claim 6, characterized in that the actuating device (30) is a combined feed and pull-out device (30). An item of furniture (10) according to claim 6, characterized in that the unlocking lever (83) is connected to a return spring (82) mounted in a guide housing (31) of the actuating device (30) and acting against the pulling element (155). Piece of furniture (10) according to claim 9, characterized in that the unlocking lever (83) is connected to a wedge slide (85), wherein an energy storage (45) having extraction device (33) of the actuating device (30) by means of the wedge slide (85) charged energy storage (45) in the guide housing (31) non-positively and / or positively lockable.

Images