Ejection device and furniture
The ejection device addresses bulkiness and unlocking distance issues by using a rotatably mounted lever with a control cam and transmission ratio for precise and compact unlocking of furniture parts.
Patent Information
- Application Number
- EP2023216302
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-12-20
- Filing Date
- 2023-12-13
- Publication Date
- 2025-06-25
- Estimated Expiration
- 2043-12-13
AI Technical Summary
Existing ejection devices for furniture are bulky, require a large distance for unlocking, and lack precise locking mechanism unlocking with short switching travels.
An ejection device with a rotatably mounted lever and a locking mechanism that includes a control cam and a transmission ratio greater than 50% for unlocking, allowing a slight pressing movement to reliably unlock the mechanism, and a compact design with a curved guide that positions the bolt outside during most of the lever's pivoting range.
Ensures precise unlocking with short switching travels and applies a high force for heavy furniture parts, while maintaining a compact design and reliable operation.
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Abstract
Description
[0001] The present invention relates to an ejection device comprising a lever mounted on a housing for rotation about a rotational axis, which lever is pretensioned in a rotational direction via an energy accumulator, and a locking mechanism for releasably locking the lever with the energy accumulator tensioned. The locking mechanism comprises a curved guide with a locking receptacle for a bolt that can be moved movably in the curved guide, and the lever has an actuating section with a contact element that can be brought into engagement with an activator of a movable furniture part for ejecting the movable furniture part when the lever is rotated by the force of the energy accumulator. EP 2 690 986 discloses a device for ejecting a movable furniture part with a pivotable ejection lever that can be locked in a position with the energy accumulator tensioned.When the movable furniture part is opened, a contact roller moves along a guide track to tension or release the energy storage device. This allows the movable furniture part to be locked in an open position. The ejection device is comparatively bulky and comprises numerous components. Another problem is that the movable furniture part must be located at a relatively large distance from the stationary furniture body in order for the ejection device to unlock.
[0002] DE102017121596A1 discloses a device for moving a movable furniture part in an opening direction relative to a furniture body of a piece of furniture.
[0003] It is therefore an object of the present invention to provide an ejection device which ensures precise unlocking of a locking mechanism with short switching travels.
[0004] This object is achieved by an ejection device having the features of claim 1.
[0005] The ejection device according to the invention comprises a rotatably mounted lever that can eject a movable furniture part via a force accumulator via a contact element and can be releasably locked in a position with the force accumulator tensioned via a locking mechanism. According to the invention, the locking mechanism comprises a control cam in which a control element is guided, which is connected to the latch. The control element and the latch can be fixed to one another or formed on a single component. The control cam is arranged closer to the axis of rotation than the cam guide.
[0006] Preferably, the contact element on the actuating section of the lever is provided with a smaller distance from the rotational axis than the locking receptacle for the latch. This creates a transmission ratio such that a slight pressing movement of the movable furniture part on the contact element moves a latch on the locking receptacle of the locking mechanism by a greater distance. This is why the locking mechanism can be reliably unlocked even with a slight pressing movement. The transmission ratio between the movement of the contact element and the movement of the latch or the locking receptacle of the locking mechanism depends on the distance from the rotational axis of the lever and is preferably at least 50% greater than the locking mechanism than the contact element. In addition, a high force can be applied to the movable furniture part via the transmission ratio, which is particularly advantageous for heavy furniture parts.
[0007] The curved guide can, for example, be designed to be open, so that the bolt is located inside or outside the curved guide depending on the rotational position of the lever. The control cam is preferably designed to be closed, and the control element is located inside the control cam in every rotational position of the lever. The lever can, for example, be pivotable between two end positions by an angular range of 40° to 140°, depending on the opening travel for the movable furniture part. The open design of the curved guide allows it to be designed in a very compact manner, since the bolt is only arranged in the curved guide when it has arrived shortly before reaching the locking position, for example in an angular range between 5° and 15° before the lever reaches the locked position. In the remaining pivoting range of the lever, the bolt can be arranged outside the curved guide.The control element, on the other hand, is preferably located within the control cam during the entire pivoting range of the lever, so that the position of the bolt is controlled via the control cam and threading the bolt into the cam guide is made easier.
[0008] The cam guide preferably has a ramp adjacent to the locking receptacle, so that the locking mechanism can be unlocked by pressing the lever against the force of the energy storage device. The switching travel for unlocking the latch via the ramp can be short, for example, between 1 mm and 5 mm.
[0009] In a further embodiment, the latch is slidably mounted on the lever, and the cam guide is arranged on the housing. Optionally, the locking mechanism can also be designed such that the cam guide is fixed to the lever and the latch is fixed to the housing. Preferably, however, the latch is slidably mounted on the lever; in particular, the latch and the control element can be provided on a common slider that is linearly guided on the lever in a radial direction.
[0010] The lever is preferably designed as a two-armed lever and includes a rotation axis between the actuating section with the contact element and the locking receptacle. The contact element and the locking receptacle do not have to be positioned exactly diametrically opposite the rotation axis, but can also be arranged at other angles if the rotation axis is considered the center point.
[0011] For an optimized adjustment of the ejection device, the contact element can be held adjustably on the actuating section via an adjusting element, so that the panel gap or another gap between the movable furniture part and a furniture body can be adjusted.
[0012] The ejection device can preferably be tensioned by moving the lever in opposite directions. The lever can thus be moved from a position with a relaxed energy storage mechanism to its initial position with a tensioned energy storage mechanism either by the activator when the movable furniture part moves in the closing direction or by a tensioning element when the movable furniture part moves in the opening direction. Regardless of whether the user moves the movable furniture part in the opening or closing direction, the locking mechanism can be retensioned and the bolt can be placed in the locking receptacle.
[0013] To ensure the quietest possible placement of the bolt on the locking receptacle, a movable pressure piece can be mounted on the lever, by means of which the bolt can be moved towards the locking receptacle upon a rotating movement of the lever. The pressure piece can be rotatably mounted on the lever in order to move the bolt diagonally or perpendicularly to the clamping direction upon reaching the locking receptacle. The pressure piece on the lever can also be movable by a control cam arranged on the housing and is preferably returned to its starting position during an ejection movement by rotating the lever.
[0014] The clamping element for the clamping mechanism when moving the movable furniture part in the opening direction is preferably strip-shaped and forms a stop for the lever, preventing the lever from rotating further in the opening direction if the locking mechanism is not engaged. This prevents the lever from being pivoted too far into a blocking position due to incorrect operation, and allows the lever to be moved into the locking position when closing the movable furniture part.
[0015] The ejection device according to the invention is preferably used in a piece of furniture comprising a furniture body and a movable furniture part. The movable furniture part can be designed, for example, as a drawer, door, flap, or as a shelf or cabinet part that is movably mounted on a furniture body.
[0016] The invention will be explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Figure 1 is a perspective view of an ejection device according to the invention in the mounted position; Figure 2 is an exploded view of the ejection device of the Figure 1 ; Figures 3A and 3B two views of the ejection device in a starting position with tensioned energy storage; Figures 4A to 4C several views of the ejection device of the Figure 1when the locking mechanism is triggered; Figures 5A to 5D show several views when a movable furniture part is ejected by the ejection device; Figures 6A to 6D show several views when the ejection device is tensioned by moving the lever in the closing direction; Figures 7A to 7E show several views of the ejection device when the lever is tensioned by moving the movable furniture part in the opening direction; Figures 8A and 8B show two views with the pressure piece on the lever in different positions; Figures 9 show a view of the ejection device with the tensioning element in the area of the lever; Figures 10A and 10B show two views of the lever with the contact element in different positions; Figure 11 show a perspective view of the slider with the latch and the control element; Figure 12 show a view of the slider and the cam guide and the control cam; Figure 13 show a detailed view of the cam guide; Figure 14 show a detailed view of the control cam;Figures 15A and 15B show two views of a first piece of furniture with an ejection device according to the invention, and Figure 16 shows a view of a second piece of furniture with an ejection device according to the invention. ;
[0017] An ejection device 1 comprises a housing 2 on which a lever 3 is rotatably mounted. The lever 3 acts via a contact element 34 on an activator 4, which can be coupled to a movable furniture part. The lever 3 is pretensioned by an energy accumulator 5 in a rotational direction in the opening direction of the movable furniture part, wherein the lever 3 can be locked by a locking mechanism with the energy accumulator tensioned. Also shown on the ejection device 1 is a tensioning element 6, which is fixed to the movable furniture part.
[0018] In Figure 2the ejection device 1 is shown in an exploded view. The housing 2 is constructed in several parts and comprises a support 20 to which a U-shaped housing part 21 is fixed. An insert element 22 is inserted into the housing part 21, on which insert element 22 a curved guide 10 and a control curve 11 are formed. The insert element 22 is arranged with a web 12 aligned with an opening 23 on the housing part 21, such that a screw 13 can be screwed through the opening 23, the web 12 into a tab 28 of the support 20, so that these form a firmly connected unit. In addition, further screws 13 are inserted on the housing part 21 in order to fix the insert element 22 in the housing part 21.
[0019] Two openings 24 are arranged in alignment on the housing part 21, through which a two-part bearing element 25 is inserted to form a rotation axis. The lever 3, which is designed as a two-armed lever 3 and has a bearing receptacle 9, is arranged around the bearing element 25.
[0020] Two holders 8 in the form of pins are formed on the lever 3, to which one end of a spring is fixed, the springs together forming a force accumulator 5. Optionally, instead of two springs, only one spring or more than two springs can be used to preload the lever 3 in one direction of rotation. The springs are fixed at the opposite end to holding sections 7 that protrude from the support 20. Furthermore, other types of force accumulators can also be used instead of coil springs.
[0021] The lever 3 comprises a control section 30 arranged within the housing 2. On the opposite side of the rotation axis, an actuating section 31 is formed, to which the contact element 34 is fixed. A receptacle for the rotationally fixed arrangement of a nut 32 is formed on the actuating section 31, into which a setting element 33 in the form of a screw is screwed. The setting element 33 is rotatably but axially immovably inserted onto the contact element 34, so that by rotating the setting element 33, the contact element 34 can be adjusted in the axial direction of the setting element 33 relative to the actuating section 31.
[0022] A slider 15 is slidably mounted on the control section 30, which slider has a latch 16 and a control element 17. The latch 16 is guided in the cam guide 10 on the insert element 22, while the control element 17 is guided on the control cam 11.
[0023] Furthermore, a pressure piece 19 is rotatably mounted on the control section 30 and is held by a fastening part 18 that is fixed to the control section 30. The pressure piece 19 is guided by a driver on a further control cam 40 that is fixed to the insert element 22.
[0024] In the Figures 3A and 3B The ejection device 1 is shown in a starting position, in which the energy accumulator 5 is tensioned and the locking mechanism is in a locked position. The activator 4 rests against the contact element 34. The latch 16 is held on a locking receptacle 50 of the cam guide 10, and the control element 17 is arranged in the control cam 11. A movable furniture part coupled to the activator 4 is in a closed or starting position.
[0025] If the locking mechanism of the ejection device 1 is to be unlocked, the Figures 4A and 4Bthe movable furniture part and thus the activator 4 are moved against the force of the energy accumulator 5, so that the lever 3 is rotated about a rotation axis 26 at Figure 4A clockwise and in the sectional view of the Figure 4Bcounterclockwise. This rotational movement causes the bolt 16 to be lifted from the locking receptacle 50 and moved against a bevel 51 on the curved guide 10. Due to the different distance to the rotation axis 26, the movement of the activator 4 can be smaller, since the bolt 16 travels at least 1.5 times the distance due to the larger lever arm, for example between 1.8 and 2.5 times. When the bolt 16 is moved against the bevel 51, the slide 15 is displaced relative to the lever 3, so that when the movable furniture part and the activator 4 are released, the lever 3 rotates in the opposite direction due to the force of the energy storage device 5, but the bolt 16 is no longer locked to the locking receptacle 50. The unlocked position upon release is in Figure 4Cshown, and it can be seen that the bolt 16 has moved in the radial direction of the lever 3, so that the bolt 16 no longer runs onto the locking receptacle 50, but through an outlet channel of the curved guide 10.
[0026] In the Figures 5A and 5B The ejection device 1 is shown ejecting a movable furniture part (not shown). The lever 3 is moved by the force of the energy storage device in Figure 5A counterclockwise and in Figure 5B rotated clockwise and thus acts on the activator 4, which moves the movable furniture part from its initial position in the opening direction. The lever 3 pivots so far that the latch 16 moves out of the curved guide 10, which is open and has an extension channel and a retraction channel. Figure 5B the bolt 16 is still in the extension channel of the curve guide 10, and in the Figures 5C and 5Dthe latch 16 on the slider 15 has moved away from the curved guide 10. The movable furniture part moves with the activator 4 at the Figures 5B to 5D from right to left, and the clamping element 6 attached to the movable furniture part reaches the pressure piece 19 attached to the lever 3 in the ejected opening position. Due to the rotary movement of the lever, the control element 17 moves along the control cam 11 and displaces the slide 15 in the radial direction outwards, as shown in the Figures 5B and 5C can be removed until the control element 17 is arranged in a channel which extends essentially in the circumferential direction around the axis of rotation 26. From this opening position, the movable furniture part can now be moved either in the closing direction or in the opening direction, wherein in both cases the lever 3 is pivoted back into the starting position and the locking mechanism is brought into the starting position.
[0027] In the Figures 6A to 6D The tensioning process of lever 3 is shown when the movable furniture part is moved back in the closing direction with the activator. Then the activator 4 presses against the contact element 34 and pivots the lever 3 in Figure 6A clockwise and in the Figures 6B to 6D counterclockwise. The activator 4 rotates the lever 3, and the control element 17 moves along the control cam 11, displacing the slide 15 in the radial direction toward the rotation axis 26. The control cam 11 positions the bolt 16 so that it enters the entry channel of the cam guide 10 and takes over the guidance of the slide 15 there.
[0028] In the Figure 6CThe movable furniture part is shown with the activator 4 in an overpressure position, and the lever 3 has been pivoted so far that the latch 16 has been moved over the locking receptacle 50 along the curved guide 10. The guidance of the slider 15 is now determined by the latch 16, and the control element 17 is inoperative.
[0029] By releasing the movable furniture part, the activator 4 is moved in the opposite direction by the force of the energy storage device 5, whereby a locking projection 58 pushes the bolt 16 into the locking receptacle 50 via a stop 56, where the bolt 16 locks. Figure 6D thus corresponds to the starting position and the closing position of the movable furniture part, which can be unlocked again by pressing it into an overpressure position, as described above.
[0030] The ejection device 1 can be removed from the Figure 5Dshown position, instead of moving the movable furniture part in the closing direction, it can also be tensioned by moving the movable furniture part in the opening direction, as shown in the Figures 7A to 7E is shown. In Figure 7A the clamping element 6 is pressed with a roller 61 against the pressure piece 19, which is held on the lever 3, so that the lever 3 is in the Figures 7A and 7B clockwise and in the Figures 7C to 7Ecounterclockwise. The lever 3 is re-engaged to the locking mechanism via the latch 16, and the movable furniture part to which the tensioning element 6 is fixed can now move further in the opening direction. Part of the movement in the opening direction is thus used to re-engage the lever 3 with the tensioned energy accumulator 5. Even if the locking were to fail, the lever 3 could not pivot back, since the tensioning element 6 is strip-shaped and forms a stop that prevents the lever 3 from rotating backward.
[0031] In Figure 7CThe start of the clamping process is shown by a movement of the clamping element 6 on the movable furniture part in the opening direction. The clamping element 6 presses with the roller 61 against the pressure piece 19, which moves the lever 3 with the slide 15 towards the curved guide 10. The control element 17 on the slide 15 slides along the control cam 11 and moves the slide 15 in a predetermined rotational position radially to the rotation axis 26 in order to position the bolt 16 so that it enters the retraction channel of the curved guide 10. The retraction situation is shown in Figure 7Dshown, and the guidance of the slide 15 is now transferred from the control element 17 to the bolt 16. The bolt 16 moves further along the curved guide 10 until it is arranged adjacent to the locking receptacle 50. In this situation, the pressure piece 19 comes into use, which is pivotable relative to the lever 3 and presses the bolt 16 onto the locking receptacle 50 through the pivoting movement. A guide surface 29 formed on the pressure piece 19 is arranged inclined to the circumferential direction about the axis of rotation 26 and slides along a surface of the slide 15 so that the latter is displaced radially towards the axis of rotation 26 and the bolt 16 is deposited in the locking receptacle 50 without the lever 3 being moved into the over-press position.
[0032] The pivoting ability of the pressure piece 19 is thus used to deposit the bolt 16 on the locking receptacle 50, so that the locking mechanism is locked during the opening movement of the movable furniture part. The spring-loaded locking projection 58 can thereby override the stop 56 to enable the bolt 16 to be deposited in the locking receptacle 50 without the lever moving backward. Figure 7E In the position shown, the movable furniture part can then be moved further in the opening direction with the clamping element 6.
[0033] The pivoting movement of the pressure piece 19 relative to the lever 3 is determined with reference to the Figures 8A and 8B explained. In Figure 8Athe lever 3 is in a released position and is pivoted counterclockwise by the energy storage device 5. The pressure piece 19 is designed as a two-armed lever and is pivotably mounted about an axis 42 relative to the lever 3. A first part of the pressure piece 19 can engage with the clamping element 6 during clamping, and a control section 41 arranged on the opposite side of the axis 42 slides along a control cam 40 that is fixed to the housing 2. The control cam 40 is designed such that when the lever 3 is moved from the starting position, the pressure piece 19 is rotated counterclockwise relative to the lever 3. In Figure 8B the pressure piece 19 has been rotated relative to the lever 3 and now slides further along the control cam 40 together with the lever 3. If the pressure piece 19 is subjected to a force during a clamping process by the movable furniture part and the clamping element 6, as shown in the Figures 7C to 7E is shown, then the pressure piece 19 will pivot again at the same point relative to the lever 3 by the control cam 40 and in doing so press the bolt 16 into the locking receptacle 50.
[0034] In Figure 9A position of the ejection device 1 is shown in which the lever 3 has been tensioned into the starting position by the tensioning element 6, but for some reason the bolt 16 has not latched onto the locking receptacle 50. As symbolically indicated by the arrow, the lever 3 now presses counterclockwise due to the effect of the energy storage device 5. However, the lever 3 cannot be moved from the tensioned position because the pressure piece 19 strikes against the tensioning element 6, which is strip-shaped and forms a lower stop surface. In this respect, there is no jerky pivoting of the lever 3 due to the force of the energy storage device 5. The lever 3 can then press against the roller 61 again when the tensioning element 6 is passed over, so that the Figure 5D shown position is achieved with the energy accumulator 5 relaxed. Blocking of the clamping element 6 during movement in the closing direction is thus excluded.
[0035] In the Figures 10A and 10B An adjustment of the locking mechanism is shown in order to change the starting position of the ejection device and thus the position of the movable furniture part in the closed position. The adjusting element 33, designed as a screw, is held by a thread in the non-rotatable nut 32 and is arranged rotatably but axially immovably in the contact element 34. The contact element 34 is located in Figure 10A near the actuating section 31 of the lever 3. If the adjusting element 33 is now rotated, the contact element 34 moves to a distance from the actuating section 31, as shown in Figure 10B is shown. The adjusting element 33 moves with the contact element 34 in the axial direction of the threaded section and also pushes the activator 4 relative to the housing 2 in the opening direction. This allows the position of the activator 4 and thus of the movable furniture part to be adjusted to the initial position.
[0036] In Figure 11the slider 15 is shown in detail. The slider 15 comprises an elongated web, on one end of which the control element 17 in the form of a pin is arranged. On the opposite side, the latch 16 is provided, which is designed as a projection, for example with a rectangular shape, although another shape can also be used. Adjacent to the latch 16, a locking projection 58 is held on a locking web. The locking projection 58 is designed to be resilient via the locking web. It is an additional switching element for tensioning during closing (cf. Fig. 6C - 6D and is tensioned when opening Fig. 7D - 7E spring-loaded and is inoperative for this direction of movement of the bolt 16.
[0037] In Figure 12the locking mechanism is shown with the curved guide 10 and the control cam 11 together with the slide 15. The control element 17 is located within the control cam 11 in every position of the lever 3, but only takes over the guidance of the slide 15 for a certain angular range. The curved guide 10 is open, and the latch 16 only engages in the curved guide 10 adjacent to the starting position. In the illustrated starting position, the latch 16 is held on the locking receptacle 50. Unlocking of the locking mechanism is only possible when the slide 15 is displaced radially inwards by moving the latch 16 against the run-up slope 51, so that the locking projection 58 can be moved past the stop 56. The locking projection 58 is arranged on a flexible web and can thus travel over a wall of the curved guide 10 in one direction.
[0038] In Figure 13the curved guide 10 is shown in detail, which has an entry channel 52 that leads to the locking receptacle 50, which is formed on an island within the curved guide 10. From the entry channel 52, the bolt 16 can be moved to a slope 53 so that the bolt 16 is positioned adjacent to the locking receptacle 50. Next to the slope 53 is a first overpressure channel 54, into which the bolt 16 can be inserted when the movable furniture part is moved into an overpressure position. If the furniture is relieved again in the overpressure position, the bolt 16 is moved via the locking projection 58 through the stop 56 into the locking receptacle 50. From the locking receptacle 50, the bolt 16 can be moved against the run-up slope 51 into a second overpressure channel 55, which forms a receptacle next to the run-up slope 51 for the bolt. From this second overpressure channel 55, the bolt 16 can then be moved into the extension channel 57 by the force of the energy accumulator 50.The stop 56 is formed on an outer side of the extension channel 57.
[0039] In Figure 14 the control cam 11 for the control element 17 is shown, which is of closed design and has a plurality of guide walls in order to displace the control element 17 radially inwards or outwards depending on the rotational position of the lever 3, as described above.
[0040] In the Figures 15A and 15BThe ejection device 1 is shown as it is installed on a piece of furniture 80. The furniture 80 comprises a furniture body 81 and a movable furniture part 82 in the form of a drawer, which is held movable on opposite sides on a pull-out guide 83. The clamping element 6 and the activator 4 are fixed to the movable furniture part 82. This allows the pull-out guide 83 to be mounted on a side wall of the furniture body 81, to which the housing 2 of the ejection device 1 is also fixed, so that the movable lever 3 acts on the activator 4 and the clamping element 6, which are mounted on the movable furniture part 82.
[0041] In Figure 16Another piece of furniture 90 is shown, which has a furniture body 91 in the form of a cabinet with a base and a top, between which a movable furniture part 92 in the form of a rotating piece of furniture is held. The movable furniture part 92 is rotatably mounted along a guide device 93, and two ejection devices 1 are provided in order to be able to eject the movable furniture part 92 from one end position each, which corresponds to a closed position. The movable furniture part 92 can be locked in two end positions.
[0042] The ejection device 1 can also be used for other furniture or household appliances in order to be able to lock a movable furniture part in a starting position and then to eject it by unlocking it, wherein the ejection can be designed both as a linear movement and as a pivoting or rotating movement. List of reference symbols
[0043] 1 Ejection device 2 Housing 3 Lever 4 Activator 5 Energy storage 6 Clamping element 7 Holding section 8 Holder 9 Bearing mount 10 Cam guide 11 Control cam 12 Web 13 Screw 15 Slide 16 Latch 17 Control element 18 Fastening part 19 Pressure piece 20 Support 21 Housing part 22 Insert element 23 Opening 24 Opening 25 Bearing element 26 Rotation axis 28 Tab 29 Guide surface 30 Control section 31 Actuating section 32 Nut 33 Adjusting element 34 Contact element 40 Control cam 41 Control section 42 Axis 50 Locking mount 51 Starting bevel 52 Entry channel 53 Bevel 54 Overpressure channel 55 Overpressure channel 56 Stop 57 Extension channel 58 Locking projection 61Roller 80Furniture 81Furniture body 82Furniture part 83Extension guide 90Furniture 91Furniture body 92Furniture part 93Guide device
Claims
1. Ejection device (1) having a lever (3) mounted on a housing (2) so as to be rotatable about an axis of rotation (26), which is pretensioned in one direction of rotation by means of an energy storage device (5), and a latching mechanism for releasably locking the lever (3) with the energy storage device (5) tensioned, wherein the latching mechanism comprises a cam guide (10) having a latching receiver (50) for a latch (16) that is movably displaceable in the cam guide (10), and the lever (3) has an actuating section (31) with a contact element (34) which can be brought into engagement with an activator (4) of a movable furniture part (82, 92) for ejecting the movable furniture part (82, 92) when the lever (3) is turned by the force of the energy storage device (5), characterized in that the latching mechanism comprises a control cam (11) in which a control element (17) is guided which is connected to the latch (16), and in that the control cam (11) is arranged closer to the axis of rotation (26) than the cam guide (10).
2. Ejection device according to claim 1, characterized in that the contact element (34) on the actuating section (31) is at a smaller distance from the axis of rotation (26) than the latching receiver (50) for the latch (16).
3. Ejection device according to claim 1 or 2, characterized in that the cam guide (10) is of open design and the latch (16) is located inside or outside the cam guide (10) depending on the rotational position of the lever (3), and the control cam (11) is of closed design and the control element (17) is located inside the control cam (11) in every rotational position of the lever (3).
4. Ejection device according to one of claims 1 to 3, characterized in that the cam guide (10) has, adjacent to the latching receiver (50), a guide bevel (51) for the latch (16), and the latching mechanism can be unlocked by pressing in the lever (3) against the force of the energy storage device (5).
5. Ejection device according to one of the preceding claims, characterized in that the latch (16) is held displaceably on the lever (3) and the cam guide (10) is arranged on the housing (2).
6. Ejection device according to claim 5, characterized in that the latch (16) and the control element (17) are provided on a slide (15) which is guided in the radial direction on the lever (3).
7. Ejection device according to one of the preceding claims, characterized in that the lever (3) is designed as a two-armed lever and the axis of rotation (26) is arranged between the actuating section (31) and the latching receiver (50).
8. Ejection device according to one of the preceding claims, characterized in that the contact element (34) is held adjustably on the actuating section via an actuating element (33).
9. Ejection device according to one of the preceding claims, characterized in that in that the lever (3) can be moved out of a position with the energy storage device (5) in a relaxed state, optionally by the activator (4) when the movable furniture part (82, 92) moves in the closing direction or by a tensioning element (6) when the movable furniture part moves in the opening direction, into the starting position with the energy storage device (5) in a tensioned state.
10. Ejection device according to one of the preceding claims, characterized in that a movable pressure piece (19) is held on the lever (3), by means of which pressure piece the latch (16) can be moved towards the latching receiver (50) during a rotational movement of the lever (3).
11. Ejection device according to claim 10, characterized in that the pressure piece (19) is rotatably mounted on the lever (3).
12. Ejection device according to claim 10 or 11, characterized in that the pressure piece (19) is movable along a control cam (40) arranged on the housing (2).
13. Ejection device according to claim 9, characterized in that the tensioning element (6) is designed in the form of a bar and forms a stop for the lever (3).
14. Furniture item (80, 90) having a furniture body (81, 91) and a movable furniture part (82, 92) which can be moved by means of an ejection device (1) according to one of the preceding claims.
Citation Information
Patent Citations
Latch and release device for cupholders
EP0760309A1