Retrofittable acceleration and deceleration system

Abstract

The invention relates to a combined acceleration and deceleration system for use on a drawer system comprising a C-shaped drawer guide rail and a drawer guided therein, with a housing in which a drive element, loaded by means of a deceleration device and an energy storage device, is movable between a force-locked and / or form-locked parking position and an end position. The housing has a first adapter and a second adapter. The adapters each have an engagement arm and a gripping arm, each with a free end. The free end of the engagement arm is oriented perpendicular to the free end of the gripping arm. The first adapter is a locking adapter whose engagement arm is at least twice as long in at least two mutually orthogonal directions as the engagement arm of the second adapter, which forms a guide adapter. With the present invention, a combined acceleration and deceleration device can be retrofitted to a drawer system with minimal effort.

Description

[0001] The invention relates to a combined acceleration and deceleration system for use on a drawer system having a C-shaped drawer guide rail and a drawer guided therein, with a housing in which a carrier element loaded by means of a deceleration device and an energy storage device can be moved between a force-locked and / or form-locked parking position and an end position.

[0002] From US 8 414 094 B2 a retraction device is known which is attached to the body of a piece of furniture and interacts with a pull-out drawer.

[0003] The present invention is based on the problem of retrofitting a combined acceleration and deceleration device to a guide rail with little effort.

[0004] This problem is solved by the features of the main claim. For this purpose, the housing carries a first adapter and a second adapter. The adapters each have an engaging arm and a wrap-around arm, each with a free end. The free end of the engaging arm is oriented perpendicular to the free end of the wrap-around arm. The first adapter is a locking adapter, whose engaging arm is at least twice as long in at least two mutually orthogonal directions as the engaging arm of the second adapter, which forms a guide adapter.

[0005] The acceleration and deceleration system has a locking adapter and a guide adapter. The locking adapter secures the position of the acceleration and deceleration system to the guide rail. The guide adapter prevents the drawer from losing contact with the acceleration and deceleration system. For installation, the acceleration and deceleration system is attached to the guide rail so that the engagement arms of both adapters engage with the guide rail. The acceleration and deceleration system is then pivoted about a longitudinally oriented pivot axis until the engagement arms engage with the guide rail. No tools are required for this, so the acceleration and deceleration system can be easily retrofitted to a guide rail.

[0006] Further details of the invention emerge from the subclaims and the following description of schematically illustrated embodiments. Fig. 1: System of two guide rails with drawer; Fig. 2: Guide rail with combined acceleration and deceleration system; Fig. 3: Combined acceleration and deceleration system from above; Fig. 4: how Fig. 3, but from diagonally below; Fig. 5: Isometric view of a wrap-around arm; Fig. 6: Front view of the wrap-around arm from Fig. 5; Fig. 7: Isometric view of an engagement arm of a first adapter; Fig. 8: Side view of the intervention arm from Fig. 7; Fig. 9: Front view of the intervention arm from Fig. 7; Fig. 10: Isometric view of an engagement arm of a second adapter; Fig. 11: Front view of Fig. 10; Fig. 12: Attaching the combined acceleration and deceleration system during assembly; Fig. 13: Cross-section of the guide rail and the combined acceleration and deceleration system mounted on it; Fig. 14: wedge element; Fig. 15: Side view of Fig. 14.

[0007] The Fig. 1 shows a system (10) comprising two guide systems (20, 120) with a drawer (11) inserted therein. This system (10) can be arranged in a cabinet. The individual guide system (20, 120) has a body-side guide rail (21, 121) and a drawer-side support rail (31). The individual support rail (31) additionally has, for example, a roller that rolls in the associated guide rail (21, 121). The drawer (11) can be moved along the guide rails (21, 121) between a closed position and an open position and back again.

[0008] In the presentation of the Fig. 1, the individual guide rail (21, 121) can be attached to the cabinet body with its end facing the drawer opening. The other end, oriented toward the rear wall of the cabinet, is arranged, for example, in a drawer bearing (22, 122) for displacement in the transverse direction (6).

[0009] In the exemplary embodiment, the individual guide rail (21, 121) has a C-shaped profile. The two guide rails (21, 121) of a guide rail set, which together support a drawer (11), are arranged in mirror images of one another. The openings (23, 123) of both profiles face one another. The individual guide rail has an upper web (24) with a wrap-around web (25), a back web (26), and a bottom web (27). The wrap-around web (25) is arranged at the free end of the upper web (24) and points in the direction of the bottom web (27). The transition between the individual webs (24, 25; 24, 26; 26, 27) is rounded in each case, with the aforementioned webs being arranged at right angles to one another. The upper web (24) and the bottom web (27) have the same width. In the area close to the wall, the lower web (27) and the upper web (24) of both guide rails (21, 121) have a downward bulge (28).

[0010] The drawer (11) has a drawer (12) and supports a support rail (31, 131) on each side. The drawer (12) is, for example, rectangular in design. It has a base (13), two longitudinal walls (14) oriented in the longitudinal direction (5), a front transverse wall (15), and a rear transverse wall (16). The front transverse wall (15) has, for example, a handle on its outside for operating the drawer (11). This front transverse wall (15) can be higher than the other walls.

[0011] The rollers can be located near the rear transverse wall (16) of the drawer (11). They extend, for example, vertically (7) beyond the support rails (31, 131). When the drawer (11) is installed, they run on the bottom rails (27) of the guide rails (21, 121).

[0012] A driver (17) is attached to each of the longitudinal walls (14) of the drawer (11) above the support rails (31, 131). This driver is designed, for example, like a pin. The driver (17) protrudes from the longitudinal wall (14) in the transverse direction (6).

[0013] In the presentation of the Fig. 1, each of the guide rails (21; 121) carries a combined acceleration and deceleration system (40; 140). Fig. Figure 2 shows such an acceleration and deceleration system (40; 140) on a guide system (20; 120). The other guide system (120; 20) with its acceleration and deceleration system (140; 40) is designed as a mirror image.

[0014] The individual acceleration and deceleration system (40; 140), cf. the Fig. 3 and Fig. 4, has a housing (41) in which a driving element (42) can be moved between a non-positively and / or positively secured parking position (49) and an end position and back. The driving element (42) is guided along a guide track (43) or a guide slot. An energy store (44), e.g. a spring element (44), which loads the driving element (42) towards the end position is mounted on the housing (41). A cylinder-piston unit (45) is arranged in the housing (41) as a deceleration device (45). In the exemplary embodiment, this is a hydraulic cylinder-piston unit (45) with a spring return. The use of a pneumatic cylinder-piston unit (45) is also conceivable. The cylinder (46) of the cylinder-piston unit (45) is fastened in the housing (41). The piston is connected to a piston rod (47) that protrudes from the cylinder (46). The piston rod end (48) of the piston rod (47) is pivotally mounted in the drive element (42).

[0015] In the exemplary embodiment, two adapters (50, 90) are detachably attached to the housing (41). The adapters (50, 90) can also be molded onto the housing (41). In this case, too, the housing (41) carries the two adapters (50, 90). The adapters (50, 90) are each located at an end of the housing (41) oriented in the longitudinal direction (5). A first adapter (50) of these adapters (50, 90) is attached to the housing end facing away from the parking position (49). A second adapter (90) is located at the end of the housing (42) adjacent to the parking position (49).

[0016] Each of the adapters (50; 90) has two projecting arms (51, 71; 51; 171; 91, 101) which are parallel at least in some areas. A first arm (51; 91) is a wrap-around arm (51; 91). The second arm (71; 171; 101) is an engagement arm (71; 171; 101). Both arms (51, 71; 51; 171; 91, 101) project in the same direction, e.g., downwards. In the exemplary embodiment, the wrap-around arms (51, 91) of both adapters (50, 90) of a combined acceleration and deceleration system (40; 140) are identical. However, they can also have a different shape. Both adapters (50, 90) are made, for example, from polyoxymethylene (POM).

[0017] The single wrap-around arm (51; 91), cf. the Fig. 5 and Fig. 6, has a receiving support (52) with which the wrap-around arm (51; 91) is fastened to the housing (41). For example, the wrap-around arm (51; 91) and the respectively associated engagement arm (71; 171; 101) are secured to the housing by means of a through-bolt (53). A contact web (54) adjoins the receiving support (52) of the wrap-around arm (51; 91). For example, the receiving support (52) and the contact web (54) merge into one another. A stiffening web (56) is formed on the outer side (55) of the contact web (54), the cross-section of which increases from the receiving support (52) towards the free end (57) of the wrap-around arm (51). The length of the contact web (54) in the vertical direction corresponds, for example, to the height of the guide rail (21). In the longitudinal direction (5), the length of the wrap-around arm (51; 91) corresponds, for example, to seven times the minimum thickness of the wrap-around arm (51; 91). A support web (65) oriented in the longitudinal direction (5) is formed on the inside of the contact web (54).

[0018] Each of the wrap-around arms (51; 91) has an under-grip web (58). This intersects the vertical central longitudinal plane of the combined acceleration and deceleration system (40; 140). The under-grip web (58) is oriented normal to the plane of a contact surface (59) of the contact web (54). The transition from the contact web (54) to the under-grip web (58) is designed as an arcuate section (61). This arcuate section (61) has, for example, a nose-shaped cross-sectional area with a funnel-shaped inlet section (62) and a, for example, semicircular transition section (63). The inlet section (62) is convex. It has an opening angle of approximately 34 degrees. In the exemplary embodiment, the transition section (63) covers an angle of 203 degrees. The radius of the inner wall of the transition section (63) is, for example, 2 millimeters.In the exemplary embodiment, the radius center line lies on the intersection line of the plane of the contact surface (59) and an under-grip plane of the under-grip web (58). The radius center line can also lie outside this intersection line. In the exemplary embodiment, the curved section (61) has a constant thickness of, for example, 1.5 millimeters. This is, for example, the minimum thickness of the wrap-around arm (51; 91).

[0019] The width of the underhand grip bar (58) corresponds to the width of the guide rail (21; 121). The thickness of the underhand grip bar (58) corresponds, for example, to the thickness of the curved section (61).

[0020] A retaining web (64) adjoins the underhand grip web (58). This forms the free end (57) of the wrap-around arm (51). The height of the retaining web (64), oriented in the height direction (7), is, for example, one-third greater than the thickness of the underhand grip web (58). The transition radius between the underhand grip web (58) and the retaining web (64) is, for example, one-tenth of the radius of the transition section (63). The deflection is 90 degrees, so that the retaining web (64) is oriented parallel to the contact web (54).

[0021] The Fig. 7 - 9 show the engagement arm (71; 171) of the first adapter (50) in an isometric view, a side view, and an end view. The engagement arm (71; 171) of the first adapter (50) of, for example, the right-hand acceleration and deceleration system (40) is a mirror image of the engagement arm (171) of, for example, the left-hand acceleration and deceleration system (140). The engagement arm (71; 171) has an outer web (72), a support web (73), and a cantilever web (74). The outer web (72) is fastened to the housing (41) together with the receiving carrier (52). In the fastening area, it has, for example, a conical centering lug (75) that penetrates into the housing (41).

[0022] The outer web (72) is designed, for example, as an irregular heptagon in side view. In the longitudinal direction (5), the lower section of the outer web (72) is 2.7 times longer than the upper section, which contains the fastening recess (76). A transition section (77) connects the upper section to the lower section. For example, all transitions are rounded.

[0023] The support web (73) is arranged on the inside of the engagement arm (71; 171) in the exemplary embodiment in the transition region (77). It is oriented parallel to the upper side of the outer web (72). Its length in the longitudinal direction (5) corresponds to the length of the upper region of the outer web (72). Its width oriented in the transverse direction is, for example, 2.7 times the thickness of the outer web (72).

[0024] The cantilever web (74) is formed onto the lower end of the outer web (72). This forms the free end (78) of the engagement arm (71). When the first adapter (50) is mounted, the free end (78) points in the direction of the contact web (54) of the wrap-around arm (51). It is oriented perpendicular to the free end (57) of the wrap-around arm (51). The cantilever web (74) has a wedge-shaped envelope contour. Its distance from the support web (73) is, for example, 1.7 times the thickness of the outer web (72). The upper side of the cantilever web (74) lies parallel to the support web (73). It forms a holding surface (82). In the longitudinal direction (5), the length of the cantilever web (74) corresponds to the length of the lower section of the outer web (72). In the transverse direction (6), the width of the cantilever web is, for example, 3.6 times the thickness of the outer web (72). The upper side has a receiving groove (79) adjacent to the outer web (72) in the transverse direction. The width of this receiving groove (79) is, for example, five-eighths of the thickness of the outer web (72).The receiving groove (72) is adjoined by a transition area (81) to the contact area (82). This transition area is, for example, 40% higher than the receiving groove (79) than the outer web (72).

[0025] The envelope plane of the underside of the cantilever web (74) forms an angle of 2 degrees with the contact surface (82) of the cantilever web (74). The imaginary apex of the angle is oriented toward the second adapter (90). A locking toothing (83) is embossed on the underside of the cantilever web (74). The locking toothing (83) is directed against the increasing pitch of the underside. The two flanks of a single tooth (84), for example, form an angle of 66 degrees. The steeper flank is oriented toward the end of the engagement arm (71; 171) facing away from the centering lug (75).

[0026] In the Fig. 10 and Fig. 11 shows the engagement arm (101) of the second adapter (90). Its length corresponds to the length of the upper region of the engagement arm (71) of the first adapter (50). It has a support web (102) which, when assembled, is aligned with the support web (73) of the engagement arm (71) of the first adapter (50). These support webs (73, 102) rest against the underside of the housing (41) when assembled. The engagement arm (101) of the second adapter (90) has an outer web (103) of constant length and a cantilever web (104) oriented perpendicular to this outer web. The cantilever web (104) forms a free end (105) of the engagement arm (101) of the second adapter (90). The transition between the outer web (103) and the cantilever web (104) is configured as described in connection with the first engagement arm (71). The thickness of the outer web (103) of the engagement arm (101) of the second adapter (90) corresponds to the thickness of the outer web (72) of the engagement arm (71) of the first adapter (50).The height of the cantilever web (104) of the second adapter (90) and its width amount to three-quarters of this thickness. The length of the cantilever web (104) in the longitudinal direction (5) is five and a half times the stated thickness. Thus, in the exemplary embodiment, the cantilever web (74) of the first engagement arm (71) has more than twice the extent in the height direction (7), in the width direction (6), and in the longitudinal direction (5) as the cantilever web (104) of the second engagement arm (101). These length relationships exist in at least two dimensions. The free end (105) of the engagement arm (101) of the second adapter is oriented normal to the free end (57) of the wrap-around arm (91) of the second adapter (90).

[0027] In the Fig. 14 and Fig. 15 shows a wedge element (180). In the exemplary embodiment, one wedge element (180) is assigned to each acceleration and deceleration system (40; 140). In the exemplary embodiment, the wedge element (180) has a thickness of 5.8 millimeters. The maximum height is, for example, 2.7 times this value. In the exemplary embodiment, the length is 6.55 times the stated thickness value. The pitch of the wedge surface (181) corresponds to the pitch stated in connection with the first engagement arm (71; 171). This wedge surface (181) carries a locking toothing (182), the individual teeth of which are designed like the teeth (84) of the first engagement arm (71; 171).The tooth pairing (185) with the wedge element (180) and the first engagement arm (71; 171) is designed such that, when the upper side of the cantilever web (74) of the first engagement arm (71; 171) and the underside (183) of the wedge element (180) are parallel, the two toothed wedge surfaces (82, 181) can be displaced relative to one another in a locking manner. The wedge element (180) has a tool engagement recess (184) for displacing it. The individual wedge element (180) can be integrally formed on the first engagement arm (71; 171), at least in the delivery state.

[0028] For assembly, a first adapter (50) and a second adapter (90) are mounted on the housing (41) of an acceleration and deceleration device. The resulting combined acceleration and deceleration system (40; 140) is attached to the inside of the guide rail (21; 121) in such a way that the engagement arms (71, 101) are inserted into the guide rail (21; 121), see. Fig. 12. The engagement arm (71; 171) of the first adapter (50) determines the mounting position of the acceleration and deceleration system (40; 140). The acceleration and deceleration system (40; 140) is then pivoted about its longitudinal axis so that the engagement arms (51, 91) engage the guide rail (21; 121) and the contact webs (54) engage the back webs (26) of the guide rail (21; 121). Upon further pivoting, the engagement arms (51, 91) lock into the guide rail (21; 121), see Fig. Fig. 13. This assembly is done without tools.

[0029] To permanently secure the relative position of the acceleration and deceleration system (40; 140) and the guide rail (21; 121), the wedge element (180) is inserted. This is inserted into the guide rail (21; 121) in the area of ​​the first adapter (50) and pressed in. The locking teeth (182) of the wedge element (180) engage with the locking teeth (83) of the engagement arm (71; 171) of the first adapter (50). As the wedge element (180) is pressed in further, the two locking teeth (83, 182) engage with each other. The wedge element (180) and the engagement arm (71; 171) are pushed apart and pressed against the inner sides of the guide rails (21; 121), so that the first adapter (50) is non-positively locked in the guide rail (21; 121). The first adapter (50) is referred to below as the locking adapter (50).

[0030] The second adapter (90) secures the position of the acceleration and deceleration system (40; 140) during the movement of the drawer (11). This second adapter (90) is hereinafter referred to as the guide adapter (90).

[0031] The acceleration and deceleration system (40; 140) can be mounted on the guide rail (21; 121) before or after the drawer (11) is installed. This allows the acceleration and deceleration system (40; 140) to be retrofitted to an existing drawer guide system. The rollers of the drawer (11) can be used to press in the wedge elements (180) on both sides.

[0032] During operation of the drawer system (10), when the drawer (11) is closed, each of the two-sided drivers (17) contacts a driver element (42) of an acceleration and deceleration system (40; 140).

[0033] The respective drive element (42) is released from its parking position (49). The drawer (11) is decelerated by the cylinder-piston unit (45) and pulled into the closed end position by the discharging energy storage device (44), e.g., the relaxing spring element (44).

[0034] When the drawer (11) is opened, the driver (17) pulls the driver elements (42) from the end position into the parking position (49). The respective energy storage device (44) is charged. The locking adapter (50) prevents movement of the acceleration and deceleration system (40; 140) relative to the guide rail (21; 121) by means of its engagement arm (71; 171) and, if necessary, additionally by means of the wedge element (180). The guide adapter (90) secures the position of the driver element (42) relative to the driver (17) so that it does not unhook. The individual acceleration and deceleration system (40; 140) remains in its position relative to the guide rail (21; 121).

[0035] A combination of the individual embodiments is also conceivable. List of reference symbols: 5 Longitudinal direction 6 Transverse direction 7 Altitude direction 10 system, drawer system 11 drawers 12 drawers 13 Floor 14 longitudinal walls 15 front transverse wall 16 rear transverse wall 17 drivers 20 guidance system 21 Guide rail 22 thrust bearings 23 Opening of (21) 24 Obersteg 25 Wrap-around bridge 26 back bridge 27 Underbridge 28 Bulging 31 support rail 40 Combined acceleration and deceleration system 41 housings 42 Driving element 43 guideway 44 Energy storage, spring element 45 Delay device, cylinder-piston unit 46 cylinders 47 Piston rod 48 Piston rod end 49 Parking position 50 adapters, first adapter, locking adapter 51 first arm, wrap-around arm 52 recording media 53 Through-bolt 54 jetty 55 Outside 56 stiffening bar 57 free end of (51) 58 Underhand bar 59 contact surface 61 arch section 62 Inlet section 63 Transition section 64 Stop bridge 65 support bridge 71 Arm, intervention arm 72 outer bridge 73 Support bridge 74 cantilever bridge 75 Centering nose 76 Mounting recess 77 Transition area 78 free end of (71) 79 receiving trough 81 Transition area 82 Investment area, investment area 83 locking teeth 84 tooth of (83) 90 adapter, second adapter, guide adapter 91 arm, wrap-around arm 101 Arm, intervention arm 102 Support bridge 103 Outer Bridge 104 cantilever bridge 105 free end of (101) 120 guidance system 121 Guide rail 122 thrust bearings 123 Opening of (121) 140 combined acceleration and deceleration system 171 intervention arm 180 wedge element 181 wedge surface 182 locking teeth 183 bottom of (180) 184 Tool engagement recess 185 Gear pairing

Claims

[1] Combined acceleration and deceleration system (40; 140) for use on a drawer system having a C-shaped drawer guide rail and a drawer (11) guided therein, with a housing (41) in which a carrier element (42) loaded by means of a deceleration device (45) and an energy store (44) can be moved between a force-locked and / or form-locked parking position (49) and an end position, characterized by , - that the housing (41) carries a first adapter (50) and a second adapter (90), - that the adapters (50, 90) each have an engagement arm (71; 171; 101) and a wrap-around arm (51; 91), each having a free end (57; 78; 105), - that the free end (78; 105) of the engagement arm (71; 171) is oriented normal to the free end (57) of the encompassing arm (51; 91) and - that the first adapter (50) is a locking adapter (50) whose engagement arm (71; 171) is at least twice as long in at least two mutually orthogonal directions as the engagement arm (101) of the second adapter (90) forming a guide adapter (90). [2] Combined acceleration and deceleration system (40; 140) according to claim 1, characterized by that the individual encompassing arm (51; 91) has a receiving support (52), a contact web (54) adjacent thereto, an under-grip web (58) oriented normal to the contact web (54) and a holding web (64) oriented normal to the under-grip web (58) and parallel to the contact web (54). [3] Combined acceleration and deceleration system (40; 140) according to claim 2, characterized bythat between the contact surface (59) of the contact web (54) lying in a contact plane and a lower grip surface of the lower grip web (58) lying in an under-grip plane, an arc section (61) is formed, the radius center line of which lies on or outside the imaginary intersection line of the contact plane and the under-grip plane. [4] Combined acceleration and deceleration system (40; 140) according to claim 1, characterized by that the gripping arms (51; 91) of both adapters (50, 90) are identical. [5] Combined acceleration and deceleration system (40; 140) according to claim 1, characterized by that the individual engagement arm (71; 171; 101) has an outer web (72) and a cantilever web (74; 104) oriented normal thereto and having the free end (78; 105). [6] Combined acceleration and deceleration system (40; 140) according to claim 4, characterized bythat the cantilever web (74) of the locking adapter (50) is wedge-shaped in the longitudinal direction (5). [7] Combined acceleration and deceleration system (40; 140) according to claim 1, characterized by that a wedge element (180) is formed onto the locking adapter (50) by means of a tear-off web. [8] Guide system (20; 120) comprising a C-shaped guide rail (21; 121) and a combined acceleration and deceleration system (40; 140) according to claim 2, wherein the guide rail has a top web (24), a back web (26) and a bottom web (27), characterized by , - that the cantilever webs (74, 104) of both engagement arms (71; 101) engage under the upper web (24), - that the contact webs (54) of both wrap-around arms (51; 91) rest on the back web (26) and - that the under-grip webs (58) and the holding webs (64) together with the contact webs (54) clamp around the lower web (27). [9] Guide system (20; 120) comprising a C-shaped guide rail (21; 121) and a combined acceleration and deceleration system (40; 140) according to claim 2, characterized by , - that the individual engagement arm (71; 171; 101) has an outer web (72) and a cantilever web (74; 104) oriented perpendicularly thereto and having the free end (78; 105), - that during assembly, when attaching the acceleration and deceleration system (40; 140) to the guide rail (21; 121), the engagement arms (71, 101) dip into the guide rail (21; 121) so that after pivoting the acceleration and deceleration system (40; 140) about the longitudinal axis, the engagement arms (51, 91) engage the guide rail (21; 121), the contact webs (54) rest against the back webs (26) of the guide rail (21; 121) and the engagement arms (51, 91) lock onto the guide rail (21; 121) and - that in order to permanently secure the position of the acceleration and deceleration system (40; 140) and the guide rail (21; 121) relative to one another, a wedge element (180) secures the engagement arm (71; 171) of the locking adapter (50) in the guide rail (21; 121), wherein a locking toothing (182) of the wedge element (180) engages in a locking toothing (83) of the cantilever web (74) of the engagement arm (71; 171) of the first adapter (50). [10] Drawer system (10) comprising two guide systems (20; 120) according to claim 9 with a drawer (11) inserted therein, characterized by , - that the individual guide system (20; 120) has a body-side guide rail (21, 121) and a drawer-side support rail (31) and - that above the support rails (31, 131) on each of the longitudinal walls (14) of the drawer (11) a driver (17) is attached, which protrudes in the transverse direction (6) from the longitudinal wall (14) and - that during operation of the drawer system (10) when closing the drawer (11), each of the two-sided drivers (17) can be contacted with the driver element (42) of the respectively associated combined acceleration and deceleration system (40; 140).

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