Retracting and extending device comprising bidirectional retracting devices

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 which has a combination acceleration and deceleration device and in which at least one extending device is arranged, wherein the retracting device and the extending device can be coupled together by means of at least one switchable axial coupling on the basis of the stroke range, a carriage comprising such a retracting and extending device, and a door guide rail comprising carriages inserted therein. The retracting and extending device has a second retracting device which is arranged in the aforementioned housing. The combination acceleration and deceleration device is both a part of the first retracting device as well as a part of the second retracting device. By virtue of the invention, a compact retracting and extending device is developed with an expanded range of possible applications.

Description

[0001] 06-11-2023-3S147201-HauPiQnsi -0013 PCT / DE2023 / 000129 'W9131=WO G. and M. Zimmer 11.10.23 77866 Rheinau Pull-in and pull-out device with bidirectional pull-in devices Description: 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 having a combined acceleration and deceleration 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 to one another by means of at least one switchable axial coupling depending on the stroke range, a carriage with such a pull-in and pull-out device and a door guide rail with a carriage inserted therein. AC — nniAPCT / DE2023 / 000129 W9131=WO 2 Such a retraction and extension device is known from DE 10 2017 004 611 A1. This device is suitable for objects of large masses and for high inertial forces. The present invention is based on the problem of developing a compact retraction and extension device with expanded application possibilities. This problem is solved with the features of the main claim. For this purpose, the retraction and extension device has a second retraction device arranged in the aforementioned housing. The combined acceleration and deceleration device is part of both the first retraction device and the second retraction device. Two retraction devices and at least one extension device are arranged in the housing of the retraction and extension device.A first retraction device is coupled to the extension device by means of an axial coupling in an operating end position, when the extension device is triggered from a locked position, and when the extension device is moved out of the locked position. When moving to the operating end position, the coupling partners of the axial coupling are separated from each other. The two retraction devices each have a carrier element that can be moved relative to the housing between a park position and an end position. The two carrier elements are oriented opposite each other. They share a combined acceleration and deceleration device. This allows a sliding door or a drawer to be moved with a delay into both a closed and an open operating end position.From the closed operating position, for example, the sliding door or drawer can be reopened by applying an external load in the closing direction. However, the sliding door or drawer can also be pulled directly into the open direction from this operating position—without triggering the pull-out mechanism. 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 support part with locking lever; Figure 9: Cylinder-piston unit; Figure 10: Retraction and extension device in an initial position; Figure 11: Retraction and extension device after the start of the retraction movement; Figure 12: Retraction and extension device with the extension device tensioned; 0G-11-2023-33.147201-HäuPiPi5si -001£ PCT / DE2023 / 000129 W9131=WO Figure 13: Retraction and extension device after the retraction device has been released; Figure 14: Retraction and extension device in an operating end position; Figure 15: Detail of the release coupling in the operating end position; Figure 16: Retraction and extension device when opening from the operating end 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 - 10 show a combined retraction and extension device 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 (2) or in drawer systems. 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 (1). At each of the ends of the retraction and extension devices oriented in a longitudinal direction (15). vo n uatiPielb vmafPCT / DE2023 / 000129 W9131=WO Each pull-out device ( 10) has at least one roller ( ) of the carriage ( ) arranged on it. All rollers ( 7) run in a door guide rail ( 3) arranged stationary in a building or in a cabinet. In the door guide rail ( 3) there is at least one stationary driver ( ) arranged, which contacts the retraction and extension device ( 10). It is also conceivable to arrange the retraction and extension device ( 10) on the frame side. The driver ( ) is then fastened to the sliding door leaf ( 10). Even when used in a drawer system, the retraction and extension device ( 10) can be arranged either on the drawer or on the furniture body. In a sliding door system ( consisting of a door guide rail ( 10) and a carriage ( 11), the entire Carriage ( invisible from the outside within the door guide rail ( 3). The door guide rail ( 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 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 illustrated embodiment. The individual retraction device (81; 281) has the task of conveying, for example, the sliding door leaf (into a closed operating end position (301) or into an open operating end 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 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 moved in the opening direction (306) by means of the pull-out 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) that interacts with a combined acceleration and deceleration device (82). A combined acceleration and deceleration device (82) has an acceleration device (83) and a deceleration device (91) connected in parallel. The resultant of the acceleration and deceleration acts on the driving element (111; 283). The combined acceleration and deceleration device (82) forms the drive of the feed 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 accumulator (83) in the form of a tension spring. This first spring energy accumulator (83) is held by a first spring end (84) in the first carrier element (111) and by a second spring end (85) in the second carrier 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 representations 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). The extension device (141) has a locking lever support part (151) that can be moved in 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 store (142). The second spring energy store (142) drives the extension device (141). In the exemplary embodiment, the second spring end (143) of the second spring energy store (142) is held in a spring holder (66) on the housing side. The second spring energy store (142) is designed as a tension spring (142). In the illustration, the tension spring (142) has two sections (144, 145) of different diameters. In a 06-11-2023-3g147201-HauPiPosi -0020 PCT / DE2023 / 000129 .W9131=WO In the first region (144) adjacent to the locking lever carrier part (151), the tension spring (142) has a cross-sectional area which corresponds, 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) in the illustrated embodiment is, for example, more than twice the first region (144). 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 one another, for example, in a force-fitting, form-fitting or material-fitting manner. In the exemplary embodiment, they are screwed together by means of 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 both of 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 driving element (111) protrude from the housing (11) through a first longitudinal slot (13), shown on the left in the figures 1 and 2. In these illustrations, the locking lever (171) is in a stop position (176). In this illustration, a stop surface (174) of the locking lever (171) is at least approximately perpendicular to the upper side of the housing (12). The extension device (141) is shown in the figures 1 and 2 in a middle position between a locking position (147) and a standby position (146). The first carrier element (111) is shown in a position between a first carrier element parking position (112) and a first end position (113). The second carrier element (283) protrudes from the second longitudinal slot (14) shown on the right in the aforementioned figures 1 and 2.The second driving element (283) is shown in the figures mentioned 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). Figure 5 shows some details in an enlarged view. Together with the inside of the second housing shell (71), four guide track systems (33, 41, 51, 61) are formed in the housing (11). Each of the guide track systems (33, 41, 51, 61) has two opposing guide tracks (34, 41, 52, 53, 54). A first guide track system (33) is formed below the first longitudinal slot (13). This guide track system (33) is hereinafter referred to as the pull-out guide track system (33).The individual first guide track (34) has a straight section (35) and a curved section (36) adjacent thereto, as well as 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% 08-11-2023-35.147201-HauPiPosi -0022 PCT / DE2023 / 000129 W9131=WO 10 of the length of the housing (11). The first guide track (34) has a constant height, which in the exemplary embodiment is 3 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 facing away from the longitudinal slot (13). The average radius of the curved section (36) is, for example, 28% greater than the height of the first guideway (34). The sector angle (38) of the curved section (36) is 160 degrees in the illustrated embodiment.This sector angle (38) is at least 120 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). In the exemplary embodiment, the second guide track system (41) is arranged at least approximately centrally in the housing (11) in the longitudinal direction (15). This second guide track system (41) is also referred to below as the first retraction guide track system (41). Its length is, for example, 22% of the length of the housing (11). The second guide track system (41) has, for each housing shell (31, 71), a second guide track (42) with a horizontal section (43), an inclined section (44), and a securing section (45). These sections (43, 44, 45) merge into one another. Their 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 06-11-202'-3S147201-HaulsiPn" -002. 3PCT / DE2023 / 000129 W9131=WO 11 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 guide track system (51) is arranged in the representations of the figures and on the side facing away from the pull-out guide track system (33) next to the second guide track system (41).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 configured 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 track system (61) can also, for example, have 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 store (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).The two driving 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 driving element (111; 283) can be designed to be elastically deformable in some areas in the region of the driving hooks (116, 117). On its underside, the driving element (111; 283) has a spring receptacle (118). In the exemplary embodiment, the first spring energy store (83) is held in the spring receptacles (118) of both driving elements (111; 283). On the side facing away from the guide pin (114), the driving element (111; 283) has a guide block receptacle (119). The cross-sectional area of ​​the guide block holder (119) is limited, for example, by a circular segment with an angle of, for example, 245 degrees.06-11-2023-3S147201-HauPiPosi=002g PCT / DE2023 / 000129 W9131=WO 13 In the illustration in Figure 2, the guide pins (114) of the first carrier element (111) are located in the horizontal section (34) of the first feed guide system (41). The guide pins (114) of the second carrier element (283) are located in the securing section (65) of the second feed guide system (61). A second guide for the carrier element (111; 283) is formed by a guide block (97; 98). This guide block (97; 98) is seated in the guide block receptacle (119) of the driving element (111; 283). It has two guide pins (99) with, for example, an oval cross-section. The guide blocks (97; 98) are parts of the deceleration 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 in Figure 2, 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 slide (121) is, for example, 28% of the length of the housing (11). The slide (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 CS-1-2023-33.147201- HauPiPos 0026PCT / DE2023 / 000129 W9131=WO 14 side (124), for example, are arranged 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) is 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 carriage (121) in the area of ​​the relief opening (128). On the coupling side (124), the relief opening (127) is limited 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).06-11-2023-35147201—HäuPtPzsi-0027 PCT / DE2023 / 000129 W9131=WO 15 The release coupling surface (132) merges seamlessly with the coupling wall (131) into the further coupling surface (133), a loading coupling surface (133). In the exemplary embodiment, the loading coupling surface (133) is inclined by 16 degrees with respect to a normal plane 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 toward the release coupling surface (132). The guide openings (129) are arranged on the driving side (125) of the slide (121). They have a cross-sectional area that is at least approximately the shape of an isosceles triangle. The angle enclosed by the two equally long sides (134) is, for example, 10 degrees. The imaginary apex of the angle lies above the housing (11).When the carriage (121) is 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 in Figure 2, the guide pins (114) of the first driving element (111) penetrate the guide openings (129) of the carriage (121). The base (135) of the carriage (121) is plate-shaped. On the driving side (125), the carriage (121) has a driving element recess (136). The figure shows a locking lever carrier part (151) with an inserted locking lever (171). The locking lever carrier part (151) has two guide pins (152, 153) on each side. When the locking lever support part (151) is mounted, the guide pins (152, 153) are movably mounted in the pull-out guide system (33). H 06- 1=2023- 3S147201 H a P s•-0028 PCT / DE2023 / 000129 W9131=WO 16 The locking lever (171) is pivotally mounted in the locking lever support part (151). It is wedge-shaped, for example. Its surface pointing in the retraction direction (16) is an abutment surface (172). The stop surface (174) points in the extension direction (17). In the illustrations of the figures, 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 the load of the spring (161), see Figure 19. The pivot axis (173) of the locking lever (171) is parallel to the guide pins (152, 153) on both sides.At the end pointing in the extension direction (17), the locking lever support 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 triggering area (156) is M-11-2023-3S in the embodiment. 1 47201-HauPiPest -0 028PCT / DE2023 / 000129 W9131=WO 17 linear design. 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), for example, is flat. It is, for example, perpendicular to a plane in which all 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 slide (121), the locking lever support part (151) forms two switchable axial couplings (211, 212). These are a release coupling (211) and a loading coupling (212).The release clutch (211) is formed when the release clutch surface (132) of the slide (121) comes into contact with the release area (156) of the locking lever support part (151). The loading clutch (212) is closed when the loading area (157) of the locking lever support part (151) rests against the loading clutch surface (133) of the slide (121). The two axial clutches (211, 212) can be non-positively or positively engaged. The figure shows the cylinder-piston unit (92) of the delay 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), for example, corresponds 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 arranged on the piston rod side. A compensation 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), for example, has three throttle channels (109) that penetrate the piston (95) in the longitudinal direction (15). A throttle plate (100), for example, which is 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, for example,Hydraulic oil is throttled and displaced from the displacement chamber (103) into the compensation chamber (104). The throttle plate (100) is pressed onto the piston (95). As the volume of the compensation chamber (104) increases, the compensation 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). The throttle plate (100) is raised, so that the flow cross-section of the piston (95) is increased. At the same time, the compensation spring (106) is relieved. 06-11-2023-3S147201-HauPiPosi -0031 PCT / DE2023 / 000129 W9131=WO 19 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 drivers ( 5, 6) 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 a middle position. None of the drivers ( 5, 6) has contact with the retraction and extension device ( 10). The extension device ( 141) is in a ready position ( 146). In this ready position ( 146), the locking lever support part ( 151) is close to 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 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) on the loading area (157) of the locking lever carrier part (151). The loading coupling (212) is closed. 06-11-2023-3S147201-HauPiPmei=0032 PCT / DE2023 / 000129 W9131=WO 20 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 displaced together with the locking lever support part (151) relative to the housing (11) in the retraction direction (16) along the first guide track system (33). The second spring energy accumulator (142) is tensioned. The locking lever support part (151) detaches from the carriage (121). The loading coupling (212) is opened. The first retraction device (81) including the carriage (121) remains at rest. The driving element (283) of the second retraction device (281) remains in the second driving element parking position (284). When the sliding door is closed further, e.g. manually, it is displaced further relative to the fixed frame. The housing (11) is displaced in the closing direction (305) relative to the locking lever support part (151) held in place by the driver (142). The second spring energy store (142) is charged. The locking lever support part (151) moves along the pull-out guide system (33).As soon as the front guide pins (152) reach the curved section (36) of the pull-out 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 front guide pin (152) has overcome the apex (39) of the curved section (36). Subsequently, the front guide pin (152) is pulled into the locking section (37), relieving the second spring energy storage device (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, whereby the first guide bolts (152) of the locking lever support part (151) are seated 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 drawer guide system (33). Both the first retraction device (81) and the second retraction device (281) remain in their locked position. The first spring energy accumulator (83) and the second spring energy accumulator (142) are tensioned. The first driving element ( has detached itself from the extraction device ( 141). In the illustration in Figure 13, the driving element ( 111) of the first retraction device ( 81) has struck the driver ( ). The first retraction device ( 81) has been triggered. The first driving element ( 111) has been pivoted open and positively engages around the stationary driver ( 5). The first spring energy store ( 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 this case, the piston (95) in the cylinder (93) compresses the displacement chamber (103) so that the acceleration applied by the first spring energy accumulator (83) is counteracted by a deceleration. The carriage (121) is moved relative to the housing (11) in the retraction direction (16). The extension device (141) remains in its arrested 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 guideway system (41) facing away from the extension device (141). The piston rod (94) of the cylinder-piston unit (92) is almost fully retracted. The first spring energy accumulator (83) is 0G-11-2023-3S147201 -HauPiPosi-00. 34PCT / DE2023 / 000129 W9131=WO 22 is largely relaxed, with its force in the retraction direction (16) being, 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 friction force of the extension device (141). The extension device (141) is tensioned. The carriage (121) rests against 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) abut one another, 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, the sliding door is visually closed for the operator in the closed operating position (301). Figure 16 shows the start of the opening movement of the sliding door. To do this, the sliding door leaf (with the housing (11) is first pushed in, for example manually, from the closed operating position (301) in the closing direction (305) until, for example, the residual play is used up. The housing (11) is moved relative to the mers(5) the locked carrier element (111) of the retraction device (81) is loaded. The first spring energy accumulator (83) is further relieved. At the same time, the housing (11) displaces the locked locking lever support part (151) relative to the carriage (121). A thrust force is applied to the locking lever support part (151) via the release clutch (211). The force vector is oriented in the longitudinal direction (15). It loads the locking lever support part (151) in the release area (156). 08-11-2023-3S147201-HauPiPzsi=00 35PCT / DE2023 / 000129 W9131=WO 23 The force vector of the release clutch loads the locked locking lever support part (151) outside a rectangle which, in this locking position (147), is spanned by the guide pins (152, 153). The force vector lies on the side of the said 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 a momentary center of the release movement of the locking lever support part (151). It is 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 curved 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) by means of the transmitted forces. The locking lever carrier part (151) is now loaded by means of the second spring energy storage device (142). The release clutch (211) is separated. Subsequently, the charging clutch (212) is closed. The transition from the release clutch (211) to the charging clutch (212) can take place continuously. Figure 17 shows the retraction and extension device (10) when the sliding door is opened. The second spring energy storage device (142) pulls the locking lever carrier part (151) relative to the housing (11) while discharging. The charging coupling (212) 06-11-2023-3S147201-HauPiPosi -0036 PCT / DE2023 / 000129 W9131=WO 24 remains closed. This displaces the slide (121) relative to the housing (11) by means of the locking lever support part (151).The carriage (121) pulls the first driver element (111), which moves relative to the housing (11) toward its driver element parking position (112). The first driver element (111) continues to engage with 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 accumulator (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). During further movement in the opening direction (305), the first driver element (111) pivots into the securing section (45). The first driver element (111) is blocked in the driver element parking position (112). The first energy storage device (83) is charged. The driver (83) 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 level. The carriage (121) limits the further stroke of the locking lever support part (151). The retraction device (81) is tensioned. Thus, the retraction device (81) limits the extension stroke of the extension device (141). Figure 19 shows the retraction and extension device (10) with the sliding door further open. The driver ( has pivoted the locking lever ( 171) against the force of the leg spring ( 161) relative to the locking lever support part ( 151). The retraction device ( 81) remains unchanged. W9131=WO 25 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 in the process. The extension device (141) remains in its locked position (147). When the sliding door is closed again, the housing (11) moves with the extension device (141), e.g. still locked, relative to the driver (5). There is no contact between the driver (141) and the extension device (141). As soon as the 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 curved section (36), the locking element support part (151) is secured in the locking position (147). At the same time, the driver element (111) has reached the closed operating end position (301). The sliding door is closed. When the sliding door reaches its 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 on the movement of the housing (11) relative to the second driver element (283) by superimposing an acceleration by means of the first spring energy accumulator (83) and a deceleration by means of the cylinder-piston unit (92). The sliding door is conveyed with a delay into the open operating end position (303), where it stops 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).Each pull-out device (141; 341) is assigned to a retraction device (81; 281). The housing (11) is designed as a mirror image of a vertical central transverse plane. In the exemplary embodiment, this central transverse plane runs centrally through the cylinder guide system (51). The second pull-out guide system (68) is arranged in the housing (11). In the illustration in Figure 21, this is located at the right end of the retraction and extraction device (10). The first retraction device (81) is designed as a mirror image of the second retraction device (281). Each of the retraction devices (81; 281) has a driver element (111; 283) and a carriage (121; 321). The carriage (121) of the first feed device (81) is movably mounted in the first feed guide system (41) and in the first pull-out guide system (33).The carriage (321) of the second retraction device (281) is displaceably mounted in the second retraction guide system (61) and in the second extension guide system (68). 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 exemplary embodiment, both extension devices (141, 341) have a common second spring energy accumulator (142). This is deflected around a first deflection pulley (221) and a second deflection pulley (223) and connects the first locking lever support part (151) to the second locking lever support part (153). The second spring energy accumulator (142) has, for example, 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 section (145) has a lower spring stiffness than the two outer sections. The sliding door opens from the closed operating 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 analogously 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 H - UV? PCT / DE2023 / 000129 W9131=WO 29 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] aupiPesi-0042 PCT / DE2023 / 000129 W9131=WO 30 List of reference symbols: 2 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), arc section 37 locking section 38 sector angle, arc angle 06-11-2023-3S147201-HauPiPesi -0043 PCT / DE2023 / 000129 W9131=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 OS-11-2023-3S147201-HuPiPe - °-0044 PCT / DE2023 / 000129 W9131=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 piece 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 06-11-2023-3S147201-HauPiPosi=004S PCT / DE2023 / 000129 W9131=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) 06-11-2023-3S147201-HauPiPosi-0048 PCT / DE2023 / 000129 'in19131=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

06-11-2023-3S147201-HauPiPmßi-0048 PCT / DE2023 / 000129 W9131=WO 35 G. and M. Zimmer 11.10.23 77866 Rheinau Patent claims:

1. A retraction and extension device (10) for sliding doors or drawers with a housing (11) in which at least one retraction device (81; 281) having a combined acceleration and deceleration device (82) is arranged and in which at least one extension device (141; 341) is arranged, wherein the retraction device (81; 281) and the extension device (141; 341) are connected to one another by means of at least one switchable axial coupling (211; 212) depending on the stroke range. can be coupled, characterized in that - it has a second retraction device (281; 81) arranged in said housing (11), and - that the combined acceleration and deceleration device (82) is part of both the first-mentioned retraction device (81; 281) and the second retraction device (281; 81). 2.The retraction and extraction device (10) according to claim 1, characterized in that the housing (11) has two housing shells (31, 71) that are mirror images of each other, wherein the extraction device (141; 341), the first retraction device (81; 281), and the second retraction device (281; 81) are each mounted in both housing shells (31, 71).

3. The retraction and extraction device (10) according to claim 1, characterized in that each retraction device (81; 281) has a carrier element (111; 283) guided in the housing (11). 0S-11-2023-3S147201-HauPiPosi -0048 PCT / DE2023 / 000129 W9131=WO 36 and that the pull-out device (141; 341) has a locking lever carrier part (151; 351) guided in the housing (11) with a locking lever (171; 371), wherein the locking lever (171; 371) is spring-loaded and pivotably mounted in the locking lever carrier part (151; 351) in the direction of a stop position (176).

4. The retraction and extension device (10) according to claim 1, characterized in that at least the first retraction device (81; 281) has a carriage (121; 321) connected to the carrier element (111; 283), which has a coupling wall (131) pointing in a retraction direction (16) of the first retraction device (81) and engageable with the extension device (141; 341).Retraction and extension device (10) according to claim 1, characterized in that the combined acceleration and deceleration device (82) has a deceleration device (91) with a cylinder-piston unit (92) displaceably mounted in the housing (11). Retraction and extension device (10) according to claim 1, characterized in that it has a second extension device (341; 141) which can be coupled to the second retraction device (281; 81) at least depending on the stroke range.

7. Retraction and extension device (10) according to claim 1, characterized in that the first extension device (141; 341) and the second extension device (341; 141) have a common spring energy store (142) as a drive. 06-11-2023-3S147201-HauPillns* -00S0 PCT / DE2023 / 000129 W9131=WO 37 8. Carriage (with a retraction and extension device (10) according to claim 1 and with at least two rollers (7) arranged on the end face of the housing (11). Sliding door system (from a door guide rail (and a carriage (according to claim 1), characterized in that at least two spaced-apart drivers (5) are arranged in the door guide rail (, wherein a first driver (5;) is contactable at least with the locking lever (171; 371) of the extension device (141; 341) and a second driver (9;) is contactable with a driver element (283; 111) of the second retraction device (281; 81).

10. Sliding door system (2) according to claim 1, characterized in that the door guide rail (2) has a cross-sectional area whose height differs by a maximum of 15% from its width.

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