Retracting and extending device comprising two switchable axial couplings

Abstract

The invention relates to a retracting and extending device for sliding doors or drawers, comprising a housing in which at least one retracting device is arranged and in which at least one extending device is arranged, wherein the retracting device and the extending device can be coupled on the basis of the stroke range by means of at least one switchable axial coupling. The extending device has a self-securing locking position. The retracting device and the extending device can be coupled by means of a release coupling designed as a switchable axial coupling as well as by means of a loading coupling designed as a switchable axial coupling, wherein at one point in time, maximally one of the aforementioned switchable axial couplings is closed. The release coupling transmits a force of the retracting device oriented in the longitudinal direction so that the extending device is unlocked and released from the locking position by means of a pivoting-translational movement. The release coupling is opened after the extending device is released. Subsequently, the extending device closes the loading coupling so that the extending device loads the retracting device when the loading coupling is closed. By virtue of the invention, a retracting and extending device is developed with a low number of components.

Description

[0001] Os- I, PCT / DE2023 / 000128 W9132=WO G. and M. Zimmer 11.10.23 77866 Rheinau Pull-in and pull-out device with two switchable axial couplings The invention relates to a pull-in and pull-out device for sliding doors or drawers with a housing in which at least one pull-in device is arranged and in which at least one pull-out device is arranged, wherein the pull-in device and the pull-out device can be coupled by means of at least one switchable axial coupling depending on the stroke range. Such a pull-in and pull-out device is known from DE 10 2017 004 611 A1. This device is suitable for objects of large masses and for high inertial forces. — An IA PCT / DE2023 / 000128 W9132=WO The present invention is based on the problem of developing a retraction and extension device with a small number of components. This problem is solved by the features of the main claim.For this purpose, the extension device has a self-locking locking position. The retraction device and the extension device can be coupled using either a release coupling designed as a switchable axial coupling or a loading coupling designed as a switchable axial coupling, with a maximum of one of the switchable axial couplings being closed at any one time. The release coupling transmits a force oriented in the longitudinal direction of the retraction device, so that the extension device is unlocked and released from the locking position by means of a pivoting and pushing movement. The release coupling opens after the extension device has been released. The extension device then closes the loading coupling, so that when the loading coupling is closed, the extension device loads the retraction device.The retraction device and the extension device together form two switchable axial couplings, namely a release coupling and a loading coupling. These two axial couplings are arranged spatially separate from one another. They are closed and opened at different times. During operation, both the release coupling and the loading coupling are open in a first operating phase. In this first operating phase, the extension device is loaded and locked, and the retraction device is unloaded. The sliding door or drawer, for example, is closed in an end operating position. W9132=WO In a second operating phase, with the extension device locked and the retraction device unloaded, the release coupling is closed.When an external force oriented in the closing direction is applied to the sliding door or drawer, the housing of the retracting and extending device is displaced relative to the retracting device. The retracting device transmits a pivoting and pushing movement to the locked extending device via the release clutch. The extending device is released, opening the release clutch. In the subsequent third operating phase, the extending device closes the loading clutch. The retracting device is loaded while simultaneously unloading the extending device. Further details of the invention emerge from the dependent claims and the following description of schematically illustrated embodiments.Figure 1: Combined retraction and extension device; Figure 2: Figure with the housing shell removed; Figure 3: Front view of Figure 1; Figure 4: Housing shell; Figure 5: Detail of Figure 4; Figure 6: Driving element; Figure 7: Slide; Figure 8: Locking lever carrier part with locking lever; Figure 9: Cylinder-piston unit; Figure 10: Retraction and extension device in an initial position;. nc 1 11 9 45 .2r 4 1A 7t n u n v il hAt41412-001-8PCT / DE2023 / 000128 W9132=WO Figure 11: Retraction and extension device after the start of the retraction movement; Figure 12: Retraction and extension device with the extension device tensioned; Figure 13: Retraction and extension device after the retraction device has been released; Figure 14: Retraction and extension device in an end operating position; Figure 15: Detail of the release coupling in the end operating position; Figure 16: Retraction and extension device when opening from the end operating position; Figure 17: Retraction and extension device with the sliding door partially opened; Figure 18: Detail of the loading coupling; Figure 19: Retraction and extension device with pivoted locking lever; Figure 20: Retraction and extension device with the sliding door fully opened; Figure 21: Bidirectional retraction and extension device; Figure 22: Front view of a system with support rail and sliding door; Figure 23: System with sliding door, open; Figure 24: System with sliding door, closed.Figures 1-1 show a combined retraction and extension device (10) and some of its individual parts. Figures 10-20 show individual functional states of the retraction and extension device (10). Such retraction and extension devices (10) are used, among other things, in sliding door systems (or in drawer systems. 06-11-2023-3g147001-HauPiPoi -0017 PCT / DE2023 / 000128 W9132=WO 5 When used in a sliding door system (2), see Figures 22 - 24, the retraction and extension device (10) is, for example, part of a carriage (6) which is fastened to the top side of a sliding door leaf (7). At each of the ends of the retraction and extension device (10) oriented in a longitudinal direction (15), at least one roller (7) of the carriage (8) is arranged. All rollers (7) run in a door guide rail (3) which is fixed in a building or in a cabinet.At least one stationary driver ( ) is arranged in the door guide rail ( ), which contacts the pull-in and pull-out device ( 10). It is also conceivable to arrange the pull-in and pull-out device ( 10) on the frame side. The driver ( ) is then fastened to the sliding door leaf ( ). Even when used in a drawer system, the pull-in and pull-out device ( 10) can be arranged either on the drawer or on the furniture carcass. In a sliding door system ( ) consisting of a door guide rail ( ) and a carriage ( ), the entire carriage ( ) moves within the door guide rail ( 3), invisible from the outside. The door guide rail ( 3 can have a square or rectangular cross-section. With a rectangular cross-section, one edge length is a maximum of 5% larger than the other edge length.The retraction and extension device (10) has a housing (11) in which, in the illustrated embodiment, an extension device (141), a first retraction device (81), and a second retraction device (281) are arranged. The retraction and extension device (10) can be designed without the second retraction device (281). The retraction devices (81; 281) and the extension device (141) shown in the figures are arranged one behind the other in the housing (11). The length of the housing (11) oriented in the longitudinal direction (15) is 420 millimeters in the exemplary embodiment. The individual retraction device (81; 281) has the task of conveying, for example, the sliding door leaf (301) into a closed operating position (301) or into an open operating position (303).When closing the sliding door leaf (, in the exemplary embodiment, the housing (11) is moved in the closing direction (305) relative to the stationary driver (. In the illustrations in Figures 1, 2 and 10 - 20, the closing direction (305) is oriented to the left with respect to the housing (11). The opening direction (306) is directed to the right. Both the opening direction (306) and the closing direction (305) are oriented in the longitudinal direction (15). By means of the first retraction device (81), the housing (11) is conveyed in the closing direction (305). The retraction direction (16) of this retraction device (81) relative to the housing (11) is oriented to the right in the illustrations. The retraction direction (282) of the second retraction device ( 281) relative to the housing (11) is oriented in the opposite direction. The housing (11) is conveyed in the opening direction (306) by means of the extraction device (141).The extension direction (17) relative to the housing (11) is oriented to the left in the illustrations. Both the retraction directions (16; 282) and the extension direction (17) are oriented in the longitudinal direction (15). Each retraction device (81; 281) has a driving element (111; 283) which is connected to a combined acceleration 06-11-2023-3S147nnl -HauoiPiosi=001. 2PCT / DE2023 / 000128 W9132=WO and deceleration device (82). A combined acceleration and deceleration device (82) has an acceleration device (83) and a deceleration device (91) connected in parallel to it. The resultant of the acceleration and deceleration acts on the carrier element (111; 283). The combined acceleration and deceleration device (82) forms the drive of the retraction device (81; 281). In the exemplary embodiment, both retraction devices (81; 281) have the same acceleration device (83) and the same deceleration device (91). The acceleration device (83) is formed by a first spring energy store (83) in the form of a tension spring. This first spring energy storage device (83) is held with a first spring end (84) in the first driving element (111) and with a second spring end (85) in the second driving element (283).The deceleration device (91) has a cylinder-piston unit (92). The cylinder-piston unit (92) has a cylinder (93) and a piston (95) adjustable therein by means of a piston rod (94), see Figure 9. The cylinder (93) is mounted in the housing (11) so as to be displaceable in the longitudinal direction (15). In the illustrations of Figures 1 and 2, the first driving element (111) is pivotally mounted on the piston rod (94). The second driving element (283) is pivotally mounted on the cylinder base (96). In an embodiment without the second retraction device (281), the acceleration device (83) can be fixed on the housing side. The deceleration device (91) is then constructed such that either the cylinder (93) or the piston rod (94) is movable relative to the housing (11). 06-11-2023-3S147001-HauP4Posi -0020 PCT / DE2023 / 000128 W9132-WO The extension device (141) has a locking lever support part (151) that can be moved within the housing (11).A locking lever (171) is pivotally mounted in the locking lever support part (151). The locking lever support part (151) is loaded in the extension direction (17) by means of a second spring energy accumulator (142). The second spring energy accumulator (142) drives the extension device (141). In the exemplary embodiment, the second spring end (143) of the second spring energy accumulator (142) is held in a spring holder (66) on the housing side. The second spring energy accumulator (142) is designed as a tension spring (142). In the illustration in the figure, the tension spring (142) has two regions (144, 145) of different diameters. In a first region (144) adjacent to the locking lever support part (151), the tension spring (142) has a cross-sectional area corresponding, for example, to 0.8% of the length of the housing (11). This region (144) is guided around a deflection pulley (221). The wrap angle in this illustration is 180 degrees. The deflection radius is, for example,three times the diameter of the tension spring (142) in this first region (144). The diameter of the second region (145) of the tension spring (142) is, for example, more than twice the first region (144) in the illustrated embodiment. Due to its geometric design, the second spring energy store (142) has a first region (144) of high spring stiffness and a second region (145) of low spring stiffness. The housing (11) has a first housing shell (31) and a second housing shell (71). The two housing shells are mirror images of each other with respect to a vertical central longitudinal plane of the housing (11). The first housing shell (31) and the second housing shell (71) are connected to each other, for example, by force-fitting, form-fitting, or material-fitting means. In the exemplary embodiment, they are screwed together using several screws.The housing (11) is cuboid-shaped, see Figure 3. The height oriented normal to the longitudinal direction (15) is, for example, 4.5% of the length, and the depth oriented normal to the aforementioned directions is also, for example, 4.5% of the length. In the illustrations of the figure and Figures 10 - 21, the insertion and extraction device (10) is shown without the second housing shell (71). On the upper side (12), the housing (11) has two longitudinal slots (13, 14) spaced apart from one another by a transverse web (22). The locking lever (171) and the first driver element (111) protrude from the housing (11) through a first longitudinal slot (13), shown on the left in Figures 1 and 2. In these illustrations, the locking lever (171) is in a stop position (176). In this position, a stop surface (174) of the locking lever (171) is at least approximately perpendicular to the top of the housing (12).The pull-out device (141) is shown in the figures and in a middle position between a locking position (147) and a ready position (146). The first driving element (111) is shown in a position between a first driving element parking position (112) and a first end position (113). The second driving element (283) protrudes from the second longitudinal slot (14) shown in the figures and on the right. The second driving element (283) is shown in the figures in a second driving element parking position (284). In this driving element parking position (284), the second driving element (283) is secured in the housing (11) in a force-fitting and / or form-fitting manner. The figure shows the inside (32) of the first housing shell (31). The figure shows some details in an enlarged view.Together with the inside of the second housing shell (71), four guideway systems (33, 41, 51, 61) are formed in the housing (11). Each of the guideway systems (33, 41, 51, 61) has two opposing guideways (34, 41, 52, 53, 54). A first guideway system (33) is formed below the first longitudinal slot (13). This guideway system (33) is referred to below as the pull-out guideway system (33). The individual first guideway (34) has a straight section (35) and a curved section (36) adjacent thereto. 36) and a locking section (37) adjacent to the curved section (36). The length of the first guide track (34) in the longitudinal direction (15) is, for example, 22% of the length of the housing (11). The first guide track (34) has a constant height, which in the exemplary embodiment is millimeters.The curved section (36) is arranged on the straight section (35) in the direction of a vertical central transverse plane of the housing (11). The bend is oriented in the direction away from the longitudinal slot (13). The mean radius of the curved section (36) is, for example, 28% greater than the height of the first guide track (34). The sector angle (38) of the curved section (36) is 164 degrees in the exemplary embodiment. This sector angle (38) is, for example, between 150 degrees and 180 degrees. It can be between 120 degrees and 180 degrees. The straight locking section (37) adjoins the area of ​​the sector angle (38). The length of this locking section (37) corresponds, for example, to half the height of the first guide track (34). If necessary, the outer boundary of the guide track (34) in the area of ​​the curved section (36) and the locking section (37) can be omitted, at least in some areas.M22 06-11-2022=35.147001-HäuPiPygi=0023 PCT / DE2023 / 000128 W9132=WO 11 In the exemplary embodiment, the second guideway system (41) is arranged at least approximately centrally in the longitudinal direction (15) in the housing (11). This second guideway system (41) is also referred to below as the first retraction guideway system (41). Its length is, for example, 22% of the length of the housing (11). The second guideway system (41) has, for each housing shell (31, 71), a second guideway (42) with a horizontal section (43), an inclined section (44), and a securing section (45). These sections (43, 44, 45) merge into one another. Its height is one-third higher than the height of the first guideway system (33). The second guideway system (41) is offset relative to the first guideway system (33) by 80% of its height in the direction of the first longitudinal slot (13).The distance between the first guideway system (33) and the second guideway system (41) in the longitudinal direction (15) is, for example, 2.5% of the length of the housing (11). The distance between the curved section (36) and the securing section (45) forms the shortest distance. The horizontal section (43) is oriented parallel to the longitudinal direction (15). Its length is, for example, 87% of the length of the second guideway system (41). The inclined section (44) forms an angle of, for example, 10 degrees with the longitudinal direction (15). Its length is, for example, 7.5% of the length of the second guideway system (41). The securing section (45) forms an angle of, for example, 80 degrees with the longitudinal direction (15). Its length is, for example, 20% greater than the stated height of the second guideway (42). It points in the direction away from the first longitudinal slot ( 13).The third guideway system (51) is shown in Figures 1 and 5 on the side facing away from the pull-out guideway system (33) next to the second guideway system (41). 12arranged. The third guideway system (51) is also referred to below as the cylinder guide system (51). It is designed as a straight guide. The length of the third guideway system (51) is, for example, 12.5% ​​of the length of the housing (11). This third guideway system (51) has three guide shells (52, 53, 54) on each side of the housing. These guide shells (52 - 54) are congruent to one another in their transverse plane oriented normal to the longitudinal direction (15). The nominal diameter of the guide shells (52 - 54) corresponds to the nominal diameter of the cylinder (93), with the housing (11) forming a clearance fit with the cylinder (93). The fourth guideway system (61) is a second retraction guideway system (61). It is arranged and designed as a mirror image of the first feed guide system (41). The mirror plane is the vertical center transverse plane of the cylinder guide system (51). The fourth guide system (61) can also, for example,a different length, a differently arranged securing section, etc. than the second guide track system (41). The spring holder (66) is formed below the securing section (65) of the second retraction guide system (61). The deflection pulley (221) for the second spring energy accumulator (142) sits on a connecting pin (23) of the housing (11) in the region of the carriage-side end of the extension guide track system (33). The figure shows a driver element (111; 283). Both driver elements (111; 283) are, for example, identically designed. The individual driving element (111; 283) has a guide pin (114) on each side and two driving hooks (116, 117) delimiting a driving recess (115).OS-11-2023-35,147001—HAI4pipüs4-002S PCT / DE2023 / 000128 W9132=WO 13 The two drive hooks (116, 117) are a pull-in hook (116) located at the rear in the pull-in direction (16) and a push-and-pull hook (117) located at the front in the pull-in direction (16). If necessary, the drive element (111; 283) can be designed to be elastically deformable in some areas in the region of the drive hooks (116, 117). The drive element (111; 283) has a spring receptacle (118) on its underside. In the exemplary embodiment, the first spring energy storage device (83) is held in the spring receptacles (118) of both drive elements (111; 283). On the side facing away from the guide pins (114), the drive element (111; 283) has a guide block receptacle (119). The cross-sectional area of ​​the guide block receptacle (119) is defined, for example, by a circular segment with an angle of, for example, 245 degrees.In the illustration of the figure, the guide pins (114) of the first driving element (111) are located in the horizontal section (34) of the first feed guide system (41). The guide pins (114) of the second driving element (283) are located in the securing section (65) of the second feed guide system (61). A second guide of the driving element (111; 283) is formed by a guide block (97; 98). This guide block (97; 98) is located in the guide block receptacle (119) of the driving element (111; 283). It has two guide bolts (99) with, for example, an oval cross-section. The guide blocks (97; 98) are parts of the delay device (91). In the exemplary embodiment, a first guide block (97) is attached to the piston rod end (101) of the piston rod (94). In the illustration of the figure, this guide block (97) sits with a cylindrical center piece (102) in the guide block receptacle (121) of the first driving element (111), see.Figure 9. A second guide block (98) is fastened to the cylinder base (96) of the cylinder (93). This guide block (98) is pivotally connected to the second driving element (283). The figure shows the carriage (121) of the first feed device (81). The carriage (121) has the shape of a U-shaped groove profile. At each of its ends it has a guide pin (122, 123). These guide pins (122, 123) have, for example, an oval cross-section. The length of the carriage (121) is, for example, 28% of the length of the housing (11). The carriage (121) has a coupling side (124) at the end shown here on the left and a driving side (125) at the other end. The guide pins (123) on the coupling side (124) are positioned lower than the guide pins (122) on the driving side (125).The height difference corresponds to the height difference between the pull-out guide system (33) and the first retraction guide system (41). The carriage (121) built into the housing (11) sits with the guide pins (122) on the driving side in the retraction guide system (41) and with the guide pins (123) on the coupling side in the pull-out guide system (33). On its upper side, the carriage (121) has a reinforcing rib (126) on each side. This connects the driving side (125) and the coupling side (124). When the retraction and extension device (10) are assembled, the reinforcing ribs (126) are flush with the top side (12) of the housing (11). The two flanks (127) of the slide (121) are congruent with each other. They have a relief opening (128) and a guide opening (129). For example, two housing screws (21) penetrate the slide (121) in the area of ​​the relief opening (128).On the coupling side (124), the relief opening (127) is delimited by a coupling wall (131). The coupling wall (131) connects both flanks (127). In the exemplary embodiment, the coupling wall (131) has two coupling surfaces (132, 133). These are arranged one above the other. An underlying coupling surface (132) is referred to below as the release coupling surface (132). In the exemplary embodiment, the release coupling surface (132) is a uniaxially curved surface that covers an angle of 50 degrees. The radius of the release coupling surface (132) is, for example, 1.6% of the length of the housing (11). The release coupling surface (132) merges seamlessly with the coupling wall (131) into the further coupling surface (133), a charging coupling surface (133). In the exemplary embodiment, the charging coupling surface (133) is inclined by 16 degrees with respect to a plane normal to the longitudinal direction (15).The end of the loading coupling surface (133) adjacent to the reinforcing ribs (126) is closer to the guide opening (129) than its end oriented towards the release coupling surface (132). The guide openings (129) are arranged on the driving side (125) of the carriage (121). They have a cross-sectional area that is at least approximately in the shape of an isosceles triangle. The angle enclosed by the two equally long legs (134) is, for example, 10 degrees. The imaginary apex of the angle lies above the housing (11). With the carriage (121) installed, the lower leg of the guide opening (129) lies in the vertical direction (18) below the securing section (45) of the feed guide system (41). In the illustration of the figure, the guide pins (114) of the first driving element (111) penetrate the guide openings (129) of the slide (121).The base (135) of the slide (121) is plate-shaped. On the driving side (125), the slide (121) has a driving element recess (136). The figure shows a locking lever support part (151) with an inserted locking lever (171). The locking lever support part (151) has two guide pins (152, 153) on each side. When the locking lever support part (151) is installed, the guide pins (152, 153) are slidably mounted in the pull-out guide system (33). The locking lever (171) is pivotally mounted in the locking lever support part (151). It is wedge-shaped, for example. Its surface facing in the retraction direction (16) is an abutment surface (172). The stop surface (174) points in the extension direction (17). In the illustrations of Figures 1 and 2, the locking lever (171) is at least approximately perpendicular to a connecting plane of the guide pins (152, 153).In this position, the locking lever (171) in the exemplary embodiment is loaded by means of a spring (161), e.g., a helical torsion spring (161) in the form of a leg spring (161), for example, against a pivot stop. From the upright position, the locking lever (171) can be pivoted into an at least approximately horizontal position under load of the spring (161), see Figure 19. The pivot axis (173) of the locking lever (171) lies parallel to the guide pins (152, 153) on both sides. At the end pointing in the extension direction (17), the locking lever carrier part (151) has a spring receptacle (154). In the illustration in Figure 2, the second energy storage device (142) is held in this spring receptacle (154). Below the spring receptacle (154), the locking lever support part (151) has a stop wall (155). The stop wall (155) has at least two stop areas (156, 157).These are arranged offset from one another in the vertical direction (18). In the exemplary embodiment, the stop wall (155) has a lower trigger area (156), a transition area (158), and an upper loading area (157). The trigger area (156) is formed in the exemplary embodiment by the, for example, rounded lower edge of the stop wall (155). The trigger area (156) is linear in the exemplary embodiment. This line is oriented parallel to the center line of the guide pins (152, 153). A convex design of the section of the stop wall surrounding the trigger area (156) is also conceivable. The trigger area is then reduced to a point. The transition area (158) is, for example, flat. It is, for example, normal to a plane in which all of the guide pins (152, 153) of the locking lever carrier part (151) lie. The loading area ( 157) adjoins the upper end of the transition area ( 158).It is inclined from bottom to top in the feed direction (16), for example by 10 degrees relative to the transition area (158). The transitions between the individual areas can be curved. Together with the carriage (121), the locking lever carrier part (151) forms two switchable axial couplings (211, 212). These are a release coupling (211) and a loading coupling (212). The release coupling (211) is formed when the release coupling surface (132) of the carriage (121) comes into contact with the release area (156) of the locking lever carrier part (151). The loading coupling (212) is closed when the loading area (157) 0S-11-2023-3S147001 -HauPiPüei. -0030PCT / DE2023 / 000128 W9132=WO 18 of the locking lever carrier part (151) rests against the loading coupling surface (133) of the slide (121). The two axial couplings (211, 212) can be non-positively or positively engaged. The figure shows the cylinder-piston unit (92) of the deceleration device (91). The cylinder-piston unit (92) shown is a hydraulic cylinder-piston unit (92). It is also conceivable to use a pneumatic cylinder-piston unit (92). The length of the cylinder (93) corresponds, for example, to the length of the slide (121). The stroke of the piston (95) and the piston rod (94) is, for example, 16% of the length of the housing (11). The inner diameter of the cylinder (93), for example, is 1.5% of the length of the housing (11). In the cylinder (93), the piston (95) separates a displacement chamber (103) from a compensation chamber (104). The compensation chamber (104) is located on the piston rod side.A compensating spring (106) is arranged between the cylinder head (105) and the compensation chamber (104). This is designed as a compression spring and loads a cylinder disk (107) against which a piston rod seal (108) rests. The displacement chamber (103) is arranged between the piston (95) and the cylinder base (96). The piston (95) has, for example, three throttle channels (109) that penetrate the piston (95) in the longitudinal direction (15). A throttle disk (100), for example, which is designed to be flexible, covers the throttle channels (109) on the side of the displacement chamber (103). When the piston (95) and the cylinder base (96) approach each other, hydraulic oil, for example, is throttled and displaced from the displacement chamber (103) into the compensation chamber (104). The throttle disc ( 100) is pressed onto the piston ( 95).As the volume of the compensation chamber (104) increases, the compensating spring (106) is compressed. If the distance between the piston (95) and the cylinder base (96) increases, oil is displaced from the compensation chamber (104) into the displacement chamber (103). This raises the throttle plate (100), increasing the flow cross-section of the piston (95). At the same time, the compensating spring (106) is relieved. During assembly, roller sets with one or more rollers ( are mounted on both ends of the retraction and extension device ( 10 ) to construct a carriage ( 6 ), see Figures 23 and 24. The total length of the carriage ( is, for example, greater than or equal to 600 millimeters. The carriage ( produced in this way is inserted into a door guide rail ( ). A first driver ( and, for example, a second driver ( are arranged at a distance from one another in the door guide rail ( ).The two frame-side catches ( are fixed. The sliding door leaf ( is attached to the carriage ( ). Figure 10 shows, for example, the retraction and extension device ( 10) with the sliding door in the middle position. None of the catches ( has contact with the retraction and extension device ( 10). The extension device ( 141) is in a standby position ( 146). In this standby position ( 146), the locking lever support part ( 151) is near the end of the extension guide system ( 33) pointing in the closing direction ( 305). The second spring energy store ( 142) is relaxed to a residual energy value. In addition, the =-11-2023-35147001--HauP4 ,20 4-0(22 PCT / DE2023 / 000128 W9132=WO 20 The leg spring (161) is relieved, so that the locking lever (171) is in its pivoted-out stop position (176). The driving elements (111, 283) of both retraction devices (81; 281) are each in a driving element parking position (112; 284).The first spring energy storage device (83) of the retraction and extension device (10) is charged. The piston rod (94) of the cylinder-piston unit (92) of the deceleration device (91) is extended. The slide (121) rests with the second loading coupling surface (133) against the loading area (157) of the locking lever support part (151). The loading coupling (212) is closed. When closing the sliding door leaf (or the drawer) in the closing direction (305), the locking lever (171) contacts the first driver (5), see Figure 11. The locking lever (171) is moved together with the locking lever carrier part (151) relative to the housing (11) in the retraction direction (16) along the first guide track system (33). The second spring energy store (142) is tensioned. The locking lever carrier part (151) is released from the carriage (121). The loading coupling (212) is opened. The first retraction device (81) including the carriage (121) remains at rest.The driver element (283) of the second retraction device (281) remains in the second driver element parking position (284). When the sliding door is closed further, for example, manually, it is moved further relative to the fixed frame. The housing (11) is displaced in the closing direction (305) relative to the locking lever support part (151) which is held stationary by the driver (142). The second spring energy storage device (142) is loaded. The locking lever support part (151) moves along the drawer guide system (33). As soon as the guide pins (152) in front of it reach the bent section (36) of the drawer guide system (33), the locking lever support part (151) pivots relative to the longitudinal direction (15). The second spring energy storage device (142) is further loaded until the guide pins (152) in front of it reach the bent section (36) of the drawer guide system (33). 152) has overcome the apex (39) of the curved section (36).The front guide pin (152) is then pulled into the locking section (37), relieving the second spring energy accumulator (142). Figure 12 shows the pull-out device (141) in a locking position (147). The locking lever (171) with the locking lever support part (151) is pivoted, with the first guide pins (152) of the locking lever support part (151) sitting in the locking section (37) of the pull-out guide system (33). The second guide pins (153) remain in the straight sections (35) of the pull-out guide track system (33). Both the first retraction device (81) and the second retraction device (281) remain in their locked position. The first spring energy storage device (83) and the second spring energy storage device (142) are tensioned. The first carrier element (142) has released from the extension device (141).In the illustration of Figure 13, the driving element (111) of the first retraction device (81) has struck the driver (). The first retraction device (81) is triggered. The first driving element (111) is pivoted open and engages positively around the stationary driver (5). The first spring energy accumulator (83) loads the first driving element (111), which moves the housing (11) relative to the driver (in the direction of the closed operating end position (301). The piston rod (94) of the cylinder-piston unit (92) is retracted. In the process, the piston (95) in the cylinder (93) compresses the displacement chamber (103), so that the acceleration applied by means of the first spring energy accumulator (83) is counteracted by a deceleration. The slide (121) is relative to the 06-11-2023-3S147001—HauPtPüsi=0034 PCT / DE2023 / 000128 W9132=WO 22 Move the housing ( 11) in the feed direction ( 16).The extension device (141) remains in its locked locking position (147). Figure 14 shows the retraction and extension device (10) in the closed operating end position (301). The first driver element (111) has a small residual distance from the end of the horizontal section (43) of the second guide track system (41) facing away from the extension device (141). The piston rod (94) of the cylinder-piston unit (92) is almost completely retracted. The first spring energy accumulator (83) is largely relaxed, whereby its force in the retraction direction (16) is, for example, smaller than the static friction force of the retraction device (81) and the sliding door leaf (8). This difference between the aforementioned forces is, for example, smaller than the spring force of the second spring energy accumulator (142) locked in the locking position (147), less the frictional force of the extension device (141). The extension device (141) is tensioned.The carriage (121) rests on the locking lever support part (151). The release coupling (211) between the first retraction device (81) and the extension device (141) is closed, see the detailed illustration in Figure 15. The retraction device (81) and the extension device (141) rest against each other, for example, in a contact line (213). Further movement of the retraction device (81) in the retraction direction (16) is prevented by the extension device (141). In the exemplary embodiment, in the closed operating end position (301), the sliding door is visually closed for the operator. Figure 16 shows the start of the opening movement of the sliding door. For this purpose, for example,manually pushes the sliding door leaf (with the housing (11) from the closed 06-11-2023-3S147001-HäuPiPiasi -003S PCT / DE2023 / 000128 W9132=WO 23 operating end position (301) in the closing direction (305) by means of an external force until, for example, the residual play is used up. The housing (11) is loaded relative to the driving element (111) of the retraction device (81) locked by means of the first driver (5). The first spring energy store (83) is further relieved. At the same time, the housing (11) moves the locked locking lever carrier part (151) relative to the carriage (121). A thrust force is applied to the locking lever carrier part via the release coupling (211). ( 151). The force vector is oriented in the longitudinal direction ( 15). It loads the locking lever support part ( 151) in the release area ( 156).The force vector of the release clutch loads the locked locking lever support part (151) outside a rectangle which, in this locked position (147), is spanned by the guide pins (152, 153). The force vector lies on the side of the rectangle facing away from the locking lever (171). The force transmitted via the release clutch (211) is transferred to the locking lever support part (151) as a pivoting force and as a thrust force. The locking lever support part (151) is pivoted by means of the pivoting force as a torque with a lever arm about a momentary pivot axis and displaced in the retraction direction (16). This pivot axis forms an instantaneous center of the release movement of the locking lever support part (151). It lies parallel to the front guide pins (152) and the rear guide pins (153). The first guide pin (152) moves from the locking section (37) into the bent section (36).As soon as the first guide pin (152) has overcome the apex (39), the second energy storage device (142) is relieved. The retraction device (81) has unlocked the extension device (141) using the transmitted forces. 06-11-2023-3S147001 -HauziPosi -0036 PCT / DE2023 / 000128 W9132=WO 24 The locking lever support part (151) is now loaded by the second spring energy storage device (142). The drive of the extension device (141), released by the unlocking, disengages the release coupling (211). The charging coupling (212) is then closed. The transition from the release clutch (211) to the charging clutch (212) can occur continuously. Figure 17 shows the retraction and extension device (10) when the sliding door is opened. The second spring energy storage device (142) retracts the locking lever support part (151) relative to the housing (11) while discharging. The charging clutch (212) remains closed.The slide (121) is thus displaced relative to the housing (11) by means of the locking lever carrier part (151). The slide (121) pulls the first driver element (111), which moves relative to the housing (11) in the direction of its driver element parking position (112). The first driver element (111) continues to engage around the driver (5). The housing (11) is thus moved relative to the driver element (111) of the retraction device (81) in the opening direction (306). During this movement of the driver element (111) relative to the housing (11), the first spring energy store (83) is charged. At the same time, the piston rod (94) is pulled out relative to the cylinder (93). Figure 18 shows a detail of the closed charging coupling (212). Upon further movement in the opening direction (305), the first carrier element (111) pivots into the securing section (45). The first carrier element (111) is blocked in the carrier element parking position (112).The first energy storage (83) is charged. The driver ( ) detaches from the driver element ( 111). The sliding door can now be opened further manually. The second spring energy storage device ( 142) is discharged to a residual energy value up to OS- 2023-3S147001—HauPiPüsi=0037 PCT / DE2023 / 000128 'W9132=WO 25. The carriage ( 121) limits the further stroke of the locking lever support part ( 151). The retraction device ( 81) is tensioned. The retraction device ( 81) thus limits the extension stroke of the extension device ( 141). Figure 19 shows the retraction and extension device ( 10) with the sliding door further opened. The driver ( 5) has the locking lever ( 171) against the force of the leg spring ( 161). pivoted relative to the locking lever support part (151). The retraction device (81) remains unchanged.As soon as the driver () has left the locking lever (171), i.e. the sliding door is further opened, the tension of the leg spring (161) causes the locking lever (171) to pivot open. The retraction and extension device (10) now returns to the starting position shown in Figure 10. Closing takes place as described above. The sliding door can also be opened without the described overpressure. Starting from the closed operating end position (301) shown in Figure 14, the sliding door with the housing (11) is pulled, e.g. by hand, relative to the door frame in the opening direction (306). The housing (11) is pulled in the opening direction (306) relative to the temporarily stationary first driver element (111). The release coupling (211) is opened. The extension device (141) remains in its Locking position ( 147). When the sliding door is closed again, the housing ( 11) moves with the e.g.still locked pull-out device (141) relative to the driver (5). In this case, there is no contact between the driver (5) and the pull-out device (141). As soon as the 06-11-2023-3S1470n1 -HauPilln. —'g PCT / DE2023 / 000128 W9132=WO 26 retraction device (81) is triggered, the sliding door continues to close as described above. If the sliding door is only partially opened, the retraction and extension device (10) is, for example, between the positions shown in Figures 16 and 17. When the sliding door is closed again, the operator pushes the sliding door against the force of the extension device (141) in the closing direction (305). In this case, the driver ( 111 ) pushes the first driver element ( 111 ) in the direction of the end position ( 113 ). The driver element ( 111 ) pulls along the carriage ( 121 ), which is additionally loaded in the retraction direction ( 16 ) by means of the retraction device ( 81 ). Via the loading coupling ( 212 ), the carriage ( 121 ) pushes the locking lever carrier part ( 151 ) together with the locking lever ( 171 ) in the retraction direction ( 16 ).As soon as the first guide pin (152) of the locking lever support part (151) reaches the apex (39) of the bent section (36), the locking element support part (151) is secured in the locking position (147). At the same time, the driving element... ment(111) reaches the closed operating end position (301). The sliding door is closed. When the sliding door reaches the fully open position, the second driver element (283) contacts the second driver (9) in a partial stroke of the sliding door stroke adjacent to the open operating end position (303). The second driver element (283) is released from its driver element parking position (284) and couples positively with the second driver (9). The combined acceleration and deceleration device (82) acts by superimposing an acceleration by means of the first spring energy accumulator (83) and a deceleration by means of the cylinder-piston unit (92) on the movement of the housing (11) relative to the second driver element (283). The sliding door is moved with a delay into the open operating end position (303), where it remains without striking.Figure 20 shows the combined retraction and extension device (10) in this position. The second driver element (283) is in a second end position (285). Figure 21 shows a bidirectional combined retraction and extension device (10). This has a first retraction device (81), a second retraction device (281), a first extension device (141), and a second extension device (341). These are arranged in a common housing (11). One extension device (141; 341) is assigned to each retraction device (81; 281). The housing (11) is mirror-inverted to a vertical central transverse plane. In the exemplary embodiment, this central transverse plane runs centrally through the cylinder guide system (51). The second drawer guide system (68) is located in the housing (11). In the illustration in Figure 21, this is located at the right end of the retraction and extension device (10).The first feed device (81) is designed as a mirror image of the second feed device (281). Each of the feed devices (81; 281) has a carrier element (111; 283) and a carriage (121; 321). The carriage (121) of the first feed device (81) is slidably mounted in the first feed guide system (41) and in the first pull-out guide system (33). The carriage (321) of the second feed device (281) is slidably mounted in the second feed guide system (61) and in the second pull-out guide system (68). os 11. Z 1Anni u__ s 004(7PCT / DE2023 / 000128 W9132=WO 28 Both retraction devices (81, 281) have a common acceleration device (83) and a common deceleration device (91). These are designed as described in connection with the first embodiment. The first extension device (141) has a first locking lever support part (151) and a first locking lever (171). These are designed as described in connection with the first embodiment. The second extension device (341) has a second locking lever support part (351) and a second locking lever (371). The second locking lever (371) is pivotally mounted relative to the second locking lever support part (351) in the second locking lever support part (351). In this embodiment, both extension devices (141, 341) have a common second spring energy storage device (142).This is deflected around a first deflection pulley (221) and a second deflection pulley (223) and connects the first locking lever carrier part (151) to the second locking lever carrier part (153). The second spring energy accumulator (142), for example, has three regions of different diameters. In the exemplary embodiment, the second region (145) has twice the diameter of the first region (144) and the third region (148). The first region (144) and the third region (148) are each deflected around one of the deflection pulleys (221; 223). In the exemplary embodiment, the wrap angle is 180 degrees in each case. The middle region (145) has a lower spring stiffness than the two outer regions. The sliding door is opened from the closed operating end position (301) as described above.Before the sliding door reaches its open end position (303), the second extension device (341) is loaded. The sliding door is then moved into the open end position (303) by means of the second retraction device (281). In this open end position (303), further opening is prevented by means of the second extension device (341) and the second carriage (321). If the sliding door is pushed further in the opening direction (306) by hand, the second extension device (341) is triggered. The sliding door is moved towards the closed position. This occurs in a similar way to triggering from the closed end position (301). Figure 22 shows a front view of the sliding door system consisting of a door guide rail ( ) and a carriage ( ) for a sliding door. The carriage ( ) sits completely in the door guide rail ( 3).The door guide rail (has a square or rectangular cross-section, with one edge length being a maximum of 15% longer than another edge length. Combinations of the individual embodiments are also conceivable.

[0002] List of reference symbols: Sliding door system Door guide rail Driver, first driver Carriage Roller Sliding door leaf Second driver 10 Device, combined retraction and extension device 11 Housing 12 Top side of ( 11), housing top side 13 Longitudinal slot, first longitudinal slot 14 Longitudinal slot, second longitudinal slot 15 Longitudinal direction 16 Retraction direction, relative to ( 11) 17 Extension direction, relative to ( 11) 18 Height direction 21 Screws, housing screws 22 Crosspiece 23 Connecting pin of ( 11) 31 Housing shell, first housing shell 32 Inside of ( 31) 33 First guideway system, extension guideway system 34 First guideway 35 Straight section of ( 34) 36 Curved section of ( 34), curved section 37 Locking section 38 Sector angle, curved angle 08-11-2023-35147001-HatePiPezi-0043 PCT / DE2023 / 000128 W9132=WO 31 39 apex of ( 36) 41 second guideway system,first retraction guide system 42 second guide track 43 horizontal section 44 inclined section 45 securing section 51 third guide track system, cylinder guide system 52 guide shell 53 guide shell 54 guide shell 61 fourth guide track system, second retraction guide system 65 securing section of ( 61) 66 spring holder 68 second extension guide system 71 housing shell, second housing shell 81 retraction device, first retraction device 82 combined acceleration and deceleration device, drive of ( 81) 83 acceleration device,First spring energy storage device 84 First spring end of (83) 85 Second spring end of (83) 91 Deceleration device 92 Cylinder-piston unit 013-11-2023-3S147001—HAuPiPzei-0044 PCT / DE2023 / 000128 W9132=WO 32 93 Cylinder 94 Piston rod 95 Piston 96 Cylinder base 97 Guide block 98 Guide block 99 Guide pin 100 Throttle disc 101 Piston rod end 102 Middle section of (97) 103 Displacement chamber 104 Compensation chamber 105 Cylinder head 106 Compensation spring 107 Cylinder disc 108 Piston rod seal 109 Throttle channels 111 Driving element 112 Driving element parking position 113 End position 114 Guide pin 115 Driving recess 116 Driving hook, pull-in hook 117 Driving hook,Push and pull-out hook 118 Spring holder 119 Guide block holder 121 Slide 122 Guide pin 123 Guide pin 124 Coupling side 125 Driving side 126 Reinforcing rib 08-11-2023-357.147001-HauPifti -On4g PCT / DE2023 / 000128 W9132=WO 33 127 Flanks 128 Relief opening 129 Guide opening 131 Coupling wall 132 Coupling surface, release coupling surface 133 Coupling surface, loading coupling surface 134 Leg of ( 129) 135 Bottom of ( 121) 136 Driving element recess 141 Pull-out device 142 Second energy storage, tension spring, drive of ( 141) 143 Second Spring end of ( 142) 144 first area of ​​( 142) 145 second area of ​​( 142) 146 ready position 147 locking position 148 third area of ​​( 142) 151 locking lever support part, pull-out device support part 152 guide pin 153 guide pin 154 spring holder 155 stop wall 156 stop area, release area 157 stop area, loading area 158 transition area 161 spring, helical torsion spring,Leg spring 171 Detent lever 172 Contact surface 173 Pivot axis of ( 171) 06-11-2023-3S147001-HauPiPo“ -0045 PCT / DE2023 / 000128 1A19132=WO 34 174 Stop surface 176 Stop position 211 Coupling, axial coupling, release coupling 212 Coupling, axial coupling, loading coupling 213 Contact line 221 Deflection pulley 223 Second deflection pulley 281 Second retraction device 282 Retraction direction relative to ( 11) 283 Driving element, second driving element 284 Second driving element parking position 285 Second end position 301 Closed operating end position 303 Open operating end position 305 Closing direction relative to ( 5; 306 Opening direction relative to ( 5; 321 slide, second slide 341 second extension device 351 second locking lever support part 371 second locking lever,

Claims

06-11-2023-3S147001-HauPiPüsi -00 48 PCT / DE2023 / 000128 W9132=WO 35 G. and M. Zimmer 11.10.23 77866 Rheinau Patent claims:

1. Pull-in and pull-out device (10) for sliding doors or drawers with a housing (11) in which at least one pull-in device (81; 281) is arranged and in which at least one pull-out device (141; 341) is arranged, wherein the pull-in device (81; 281) and the pull-out device (141; 341) can be coupled depending on the stroke range by means of at least one switchable axial coupling (211; 212), characterized in that - the pull-out device (141; 341) has a self-securing locking position (147), - that the pull-in device (81; 281) and the pull-out device (141;341) can be coupled both by means of a release coupling (211) designed as a switchable axial coupling (211) and by means of a loading coupling (212) designed as a switchable axial coupling (212), wherein at a time a maximum of one of the said switchable axial couplings (211; 212) is closed, - that the release coupling (211) transmits a force of the retraction device (81) oriented in the longitudinal direction (15), so that the extraction device (141) is unlocked and released from the locking position (147) by means of a pivoting and pushing movement, and - that the release coupling (211) opens after the extraction device (141; 341) has been released, and subsequently the extraction device (141; 341) releases the loading coupling ( 212) closes, so that when the loading coupling (212) is closed, the extension device (141; 341) loads the retraction device (81; 281). uu 11-v.›-.5z).1-t / uv4=HauPiPüsi - PCT / DE2023 / 000128 W9132=WO 36 2. Retraction and extension device (10) according to claim 1, characterized in that the closed release coupling (211) has either a contact point or a contact line (213) between the retraction device (81; 281) and the release device (141; 341), wherein a contact line (213) is oriented parallel to a current pivot axis for supporting the pivoting-pushing movement.

3. Retraction and extension device (10) according to claim 1, characterized in that the release coupling (211) has a release coupling surface (132) on the retraction device (81; 281) and a release region (156) on the extension device (141), wherein the radius of curvature of the release region (156) is smaller than the radius of curvature of the release coupling surface (132). 4.

5. The retraction and extension device (10) according to claim 1, characterized in that the closed loading coupling (212) has a loading coupling surface (133) on the retraction device (81; 281) and a loading area (157) on the extension device (141; 341), the radius of curvature of the loading area (157) being smaller than the radius of curvature of the loading coupling surface (133).

6. The retraction and extension device (10) according to claim 1, characterized in that the extension device (141; 341) has a locking lever support part (151; 351) that can be moved in the housing (11), and in that the retraction device (81; 281) has a. OS = 11= 2023-3S147001 ZSiOnS0 PCT / DE2023 / 000128 'W9132=WO 37 in the housing (11) has a linearly movable carriage (121; 321), wherein both the release clutch (211) and the loading clutch (212) are formed by means of the locking lever carrier part (151; 351) and the carriage (121; 321).

6. Pull-in and pull-out device (10) according to claim 5, characterized in that the pull-out device (141; 341) has a spring energy store (142) as a drive element, which loads the locking lever carrier part (151; 351) relative to the housing (11).

7. The retraction and extension device (10) according to claim 1, characterized in that the housing (11) has a pull-out guide system (33; 68) for guiding a locking lever support part (151; 351) which has a straight section (35) oriented in a longitudinal direction (15), a curved section (36) with a sector angle (38) between 120 degrees and 180 degrees, and an adjoining locking section (37).Pull-in and pull-out device (10) according to claim 7, characterized in that the pull-in device (81; 281) has a carriage (121; 321) connected to a driving element (111; 283), which is guided both in the pull-out guide system (33; 68) and in a pull-in guide system (41; 61) in the housing (11). Pull-in and pull-out device (10) according to claim 7, characterized in that the pull-in device (81; 281)-2023-35.1470n1=HAuPiPos. _ fPCT / DE2023 / 000128 W9132=WO 38 has a combined acceleration and deceleration device (82) connected to a carrier element (111; 283).

10. Pull-in and pull-out device (10) according to claim 1, characterized in that - a second pull-in device (281; 81) is arranged in the housing (11), wherein the pull-in directions (16) of the first-mentioned pull-in device (81; 281) and the second pull-in device (281; 81) are oriented opposite to one another, and - that the first pull-in device (81; 281) and the second pull-in device (281; 81) have a common deceleration device (91) and a common acceleration device (83).

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