RU2543407C2 - Ejection mechanism, extension rail and ejection system - Google Patents

Abstract

FIELD: personal appliances.

SUBSTANCE: invention refers to an ejection mechanism for movable furniture parts. The ejection mechanism comprises a cam rail, along which a drive piece can move; the drive piece is pre-loaded in one direction by means of at least one energy storage and can be blocked in a closed position on the cam rail by the loaded energy storage; an actuator is configured to gear with the drive piece, at least in the closed position; the actuator is mounted to move in relation to the cam rail, or the cam rail is mounted to move in relation to the actuator; in the closed position, the drive piece can be unlocked by moving the actuator in relation to the cam rail or moving the cam rail in relation to the actuator. The actuator and/or cam rail can be displaced both in the first direction, and in the opposite second direction to unlock the drive piece.

EFFECT: structural enhancement and simplified drive piece unlock.

22 cl, 48 dwg

Description

This invention relates to a pusher mechanism, in particular for movable furniture parts, which contains a curved guide along which the leash can move, and the leash with at least one energy accumulator is preloaded in one direction and can be locked in the closed position on the curved guide with a loaded energy accumulator, and an activator, which may engage with the leash at least in the closed position, and the activator can alternate schatsya relative cam guide or cam rail can be moved relative to the activator, with the leash in the closed position can be unlocked by movement of the activator relative to the cam guide or move the cam guide relative to the activator, the invention also relates to the sliding guide and the ejector system.

EP 1845821 discloses a device for opening and closing drawers, in which the drawer is held in a closed position by a locking mechanism. The locking mechanism comprises a leash connected to the movable guide, on which a rod is mounted, guided in the control link. To unlock, the drawer is pressed against the force of the spring, so that after this the bar unlocks from a locked position in the control link and it can move together with the leash and the movable guide. Such a device for opening and closing has the disadvantage that the locking mechanism can only be unlocked by pressing the drawer in. In addition, locking is carried out with the help of a large number of parts, which can only accept mechanical loads to a limited extent, since they have a filigree design and therefore can be damaged.

In connection with the foregoing, the objective of the present invention is to create such an ejector mechanism and such a sliding guide, which have a solid structure and make possible a simple unlocking of the leash.

This problem is solved thanks to the push mechanism with the features of paragraph 1 of the claims.

In accordance with the invention, in a closed position, the leash can be unlocked by relative movement of the activator and the curved guide, and the activator and / or curved guide to unlock the leash can be moved both in the first direction and in the opposite second direction. Thanks to this, unlocking can be carried out both by moving the furniture part by pulling force, and by pressing the movable furniture part. Thus, the user has the opportunity to choose a way to unlock the ejector mechanism. If a movable piece of furniture is mounted on a rail, then either a curved rail or an activator can be movable / movable, while the other piece is fixed. Unlocking by appropriate mechanical means is carried out as a result of the relative movement of the curved guide and activator. In addition, it is simple to control this ejection mechanism, the corresponding parts having a solid construction, and the number of parts compared to solutions in accordance with the prior art is reduced.

According to one embodiment of the invention, the leash can be rotated from a closed position as a result of the relative movement of the activator and the curved guide. Due to this, the curved guide can be made in the form of such a guide device in which the leash can move in opposite directions. There is no need to provide a loop-shaped guide track with a locking recess, since blocking can occur on an angled end portion of the guide track. As a result of turning the leash, it can be unlocked from an angled end section and transferred to a straight section where the energy accumulator provides movement in the opening direction.

Preferably, the activator has a first contact surface designed to unlock the leash as a result of movement in the first direction and located at some distance from the first contact surface, a second contact surface for unlocking the leash as a result of movement in the second direction. Due to this, the activator can have a one-piece design, and unlocking the leash from the closed position can be carried out regardless of the direction of movement.

For stability of the direction of the leash, it has two trunnions located at a distance from each other, included in the curved guide made in the form of a groove. In this case, the curved guide may have at least one curved end portion, on which the leash can be blocked in the closed position.

The activator can essentially cover the leash in the form of the letter U, so that on each side of U to form a contact surface that unlocks the leash. Alternatively, the leash can be made in the form of a hook, and the activator on the opposite sides of the hook has contact surfaces for unlocking the leash.

Preferably, at least one actuator and / or curved guide lever is provided with which the leash can be unlocked. Due to this, it is possible to provide reliable unlocking, and the lever can be mounted rotatably, for example, on a housing with a curved guide. To unlock the leash with a lever, the leash can be connected to the activator with a gap, or the activator is also mounted with the possibility of movement, in particular on the spring, and / or with the possibility of rotation to provide movement to its original position.

In accordance with the invention, a sliding guide is provided having a fixed guide mounted on the furniture body and a movable guide mounted with the possibility of movement, which has the proposed ejector mechanism.

To facilitate installation of the guide with the ejector mechanism, the activator can be mounted on the movable guide with the possibility of movement in the direction of movement of the movable guide. Due to this, it is possible to compensate for deviations from the set dimensions in order to precisely match the position of the activator with the desired closed position. The sliding guide can be performed as a pre-assembled node, and the curved guide is mounted on a fixed guide.

According to one embodiment of the invention, in order to hold the movable guide with the activator in the closed position, an elastic stop is provided. In this case, this emphasis provides the positioning of the activator in the closed position, so that when moving beyond the closed position, accidental unlocking does not occur. In addition, a shock absorber may be provided to brake the movable rail before it reaches the closed position. This spring stop can be adjusted in the direction of extension.

The proposed ejector mechanism and the corresponding sliding guide can also be used in household appliances, for example in ovens, refrigerators and / or freezers, thermostatic drawers.

In accordance with the invention, there is provided an ejection system comprising a first and second ejection mechanism coupled to each other through a movable piece of furniture. In this case, each ejection system can be mounted on a sliding guide, and these guides are connected to each other through a sliding part, for example a drawer.

Preferably, the ejector system is such that when the leash of the first ejector mechanism is released from the locked, locked position, the leash of the second ejector mechanism is also unlocked. This ensures synchronization, which is necessary just in the case of wide drawers, since if the force to open the drawer is not applied in the middle, it may happen that the ejector mechanism will be unlocked only on one side of the drawer. If such one-sided unlocking occurs, then the ejection system through the unlocked leash and the energy accumulator develops a force in the opening direction that acts on the second leash through the furniture part and the second guide for the drawer and pulls it from the unlocked position in the opening direction. Due to this, incorrect manipulations can be reliably avoided.

In accordance with claim 18, a dog is installed at some distance from the activator, moreover, in the opening direction, this dog can pass by the leash, in the opposite direction of closing it can engage to move the leash in the closing direction. As a result, the ejection mechanism can be loaded with a dog even before the closed position, so it is also possible to use the automatic retraction mechanism, which, after applying force to the leash, pulls the activator to the closed position.

The activator and / or dog, so that they can move along the leash of the ejector device, can be made movable in a direction perpendicular to the direction of opening, or rotated around a pivot point. Alternatively, the leash may have spring-loaded levers that allow the activator to move along the leash in one direction, in the opposite direction they rest against the activator and prevent movement on the leash.

Deviation of the activator of the leash is possible due to translational motion, rotational motion, motion along the guide track, rotation and / or elastic properties of the material selected for the contact areas. Either the entire activator, or the dog, or the lead is rejected; alternatively, a partial deviation of the individual components is possible. A counteracting force for moving back the movable part can be created as a result of flexible deformation, in particular the components of the movable part. The above effects can also be achieved using a reverse stop, dial switch or dial switch.

For example, the activator or dog can be directed along a straight line in elongated holes. In this embodiment, the activator or dog can be moved back to its original position by gravity or by means of a spring. Alternatively, the activator or dog can be equipped with moving parts. These dogs or moving parts can be controlled to move back to their original position using curved guides, under the action of gravity, due to the use of elastic material or spring force.

Preferably, the leash has two spring-loaded ratchet dogs or two levers acting in opposite directions, which make possible both the application of force and movement when a small force is applied. A restoring moment is applied to these ratchet dogs, which can be obtained, for example, as a result of a flexible deformation of an underlying element. This element has two sections, each of which corresponds to one dog. It is also possible execution in the form of a balancer or leaf spring. Ratchet dogs can move without the use of significant forces in only one direction. This functionality is required in particular when a multiple-action activator or several activators or dogs are used to control various devices. Ratchet dogs can be elastic, can have a film hinge or bearing.

To prevent erroneous operations, the lever in its initial position can be spring-loaded so that operation occurs only when pressed. Thus, they can set a certain trigger force, as in the ratchet mechanism. The leash is completely removed from its initial position on the angled end portion of the curved guide only when this force is exceeded. As a result, the pushing mechanism is activated.

In a system that is controlled through the wings, an additional energy accumulator located on the activator can contribute to achieving an open end position. Due to this, malfunctions or damage to the elements are prevented, in particular, if they are mounted in a position other than that indicated.

Below the invention is explained in more detail based on two examples of its implementation and with reference to the accompanying drawings. The drawings depict the following.

Figure 1. Image of extendable guide rail

axonometric mechanism.

Figure 2-6. Several views of the guide figure 1 with a partial section.

7. The image of the activator of the pushing mechanism in a perspective view.

Figa and 8B. Two views of the guide of figure 1 in the open position.

Figa and 9B. Two views of the guide of FIG. 1 in the closed position.

Figure 10. The image of the second embodiment of the proposed guide with a push mechanism in a perspective view.

11-13. Several views of the guide figure 10 in the closed position.

Figa and 14B. Two views of the guide figure 10 in the open position.

Figa and 15B. Two views of the slide rail in the open position.

Fig.16. Image of an example implementation of the proposed ejection system in a perspective view.

Fig.17. Images of the ejection system of FIG. 16 in the closed position.

Fig. 18. Images of the ejection system of FIG. 16, unlocked on one side.

Fig.19. Images of the ejection system of FIG. 16, unlocked on one side.

Fig.20. Images of the ejection system of FIG. 16 unlocked on both sides.

Fig.21. A side view of another embodiment of the proposed retractable rail.

Fig.22-25. Several views of the guide of Fig.21 in various positions.

Fig.26. Image of another example implementation of the proposed guide in a perspective view.

Fig.27-32. Several views of the guide Fig in various positions.

Fig. 33. Image of another example implementation of the proposed ejector mechanism for a sliding guide in a perspective view.

Fig and 36. Several views of the eject mechanism of Fig in various positions.

Fig.37. Image of the proposed ejector device in a mounted position in a perspective view.

Fig.38-48. Several views of the ejector device of Fig.37 in various positions.

The proposed ejector mechanism is mounted on a sliding guide 1, which has a guide 2 mounted on the furniture body and a movable guide 3. If necessary, between the fixed and movable guide there is a middle guide that extends the extension length to allow full extension. In addition, the ejector mechanism can be mounted on a pivot door or on another movable piece of furniture.

The ejector mechanism comprises an activator 5 fixed on the movable guide 3, which in the closed position is located on the housing 6 with a curved guide 7. The curved guide 7 guides the leash 11, previously loaded in the opening direction by means of an energy accumulator 8 made in the form of a tension spring. An energy accumulator 8 is fixed at one end to a holder 9 mounted on a fixed rail 2, and on the opposite side, to a leash 11.

In the closed position, the shelf 30 located on the movable guide is adjacent to the elastic stop 31, which is made, for example, in the form of a rubber shock absorber. The stop 31 is mounted on a holder 32 mounted on a fixed guide 2 or on the middle guide 13. The holder 32 can be designed so that it can move in the direction of extension.

As shown in FIGS. 2-6, a pair of trunnions 10 and 12 located at a distance from each other and guided in a curved guide is provided on the leash 11. 7. The curved guide 7 has a middle straight section, which consists of a final section 70, located at an angle in the opening direction, and a section 71, located at an angle in the closing direction. In the region of the end sections 70 and 71, the lead 11 deviates from the movable guide 3. In the lead 11 there is a socket 14, which includes the protrusions 16 and 17 of the activator 5. If the protrusions 16 and 17 enter the socket 14, the activator 5 moves with the lead 11 .

7, the activator 5 is shown in detail. The activator 5, in fact, is made in the form of the letter U, on one of its shelves there are three protrusions 15, 16 and 17, and the protrusions 16 and 17 are included in the socket 14 of the leash 11. On the second shelf of the activator 5, an inwardly directed protrusion 18 is formed, which may also come into contact with the leash 11. In addition, the hole 19 is provided in the activator 5, into which a screw 20 is inserted for mounting the activator 5 on the movable guide 3. Thanks to the elongated hole 19, the activator 5 is fixed with the possibility of moving in the longitudinal direction of the movable guide 3.

On figa and 8B, the movable guide 3 is shown in the open position. The activator 5 is located at some distance from the leash 11, and the leash 11 as a result of the force of the energy accumulator 8 is moved to the extreme position in which the pin 10 enters the end portion 70. As a result, the leash 11 is in an inclined position in which the socket 14 is open to input ledges 16 and 17 of the activator.

If the activator 5 is closed by closing the drawer mounted on the movable guide 3, then the activator 5 with its projections 16 and 17 enters the socket 14 of the leash 11 and moves the latter against the application of the force of the energy accumulator 8 to the closed position shown in Figs. 9A and 9B. In the closed position, the pin 12 is moved along the guide track 7 and enters the end portion 71. As a result, the leash 11 is turned down and locked in the closed position due to the power of the energy accumulator 8. As shown in figv, the lower protrusion 18 of the activator 5 is adjacent to the contact surface 21 of the leash 11. In addition, as can be seen from Fig.6, the protrusion 16 is located next to the contact surface 22 of the leash 11.

Now, in the closed position, the leash 11 can be unlocked by moving the activator 5, and the activator 5 can optionally be moved either in the opening direction or in the closing direction. If the activator 5 is pulled in the opening direction, then the protrusion 16 acts on the contact surface 22 and pulls the leash 11 into the rectilinear part of the curved guide 7, so the leash 11 is unlocked. If the activator 5 is pressed in the closing direction, then the protrusion 18 is adjacent to the contact surface 21 and as a result rotates the leash 11 into the rectilinear part of the curved guide 7. So, the leash 11 is unlocked from the closed position regardless of the direction in which the activator 5 is moved in the direction of opening or closing. The movement in the closing direction for unlocking the lead 11 can be from 1 to 3 mm, so that as a result of pressing the elastic stop 31 is compressed.

Figure 10 shows a second embodiment of a sliding guide G equipped with the proposed ejector mechanism. As in the first example, the movable guide 3 is mounted on the fixed guide 2 with the possibility of movement, and the closed position of the movable guide 3 is set by an elastic stop 31 to which the shelf 30 of the movable guide 3 abuts.

The ejection mechanism includes a housing 6 ', in which a curved guide 7' is made, having only one angled end portion 70. The leash 11 'is held in a curved guide 7 "due to two spigots 10 and 12 spaced apart from each other. If the trunnion 12 moved to an angled end portion 70 (see Fig. 12), the leash 11 'is in a locked position and preloaded in the direction of opening by the force of the energy accumulator 8', made in the form of a tension spring.

To unlock the lead 11 ', an activator 5' is provided, fixed to the fixed guide 2 with a screw 20 '. The activator 5 'has a first protrusion 16', which is adjacent to the inner side of the hook 22 'of the leash 11'. A contact surface 21 'is formed on the opposite side of the hook 22', which can come into contact with the bevel 18 'of the activator 5'.

On Fig shows that the leash 11 'is unlocked by pressing the movable guide 3 in the closing direction, and in this case there is a relative movement between the curved guide 7' and the activator 5 '. Through the protrusion 16 ', the force is transmitted to the downward oriented hook 22' of the leash 11 ', so that the pin 12 is pushed up and moves into a straight section of the curved guide 7'. As a result, an energy accumulator 8 'starts to act, which pulls the leash 11 "in the opening direction.

The leash 11 'can also be unlocked by moving the curved guide 7' on the movable guide 3 in the opening direction, in which case the bevel 18 'on the activator 5' comes into contact with the contact surface 21 "on the hook 22 'of the leash 11'. As a result of this, the pin 12 is also pressed out onto a straight portion of a curved guide 7 '.

On figa and 15B the sliding guide is shown in the open position, and the activator 5 'is located at some distance from the leash 11'. The leash 11 'is in the final position of the curved guide 7'. If the movable guide 3 is moved to the closed position, then the downward hook 22 'enters between the protrusion 16' and the bevel 18 'of the activator 5', so that upon reaching the closed position, the arrangement shown in Fig. 12 is obtained, from which the leash 11 'can again to release.

FIG. 16 shows an ejector system mounted on a drawer 50 as a movable piece of furniture. The drawer 50 has a bottom 51, with the help of holders 52 mounted on opposite sides on the respective sliding rails 1. The holders 52 are mounted on a movable rail 3, which is fixed to move on a fixed rail 2. The slide 1 is mounted on the lateral side 53 of the drawer 50 .

On each guide 1 mounted ejector mechanism, shown in detail in figures 1-9; below for the same parts in the drawings use the same reference signs.

Fig.17-20 illustrate the ejection system made in accordance with Fig.1-16, and the upper drawing shows the guide and the ejector mechanism located on the left side, and the lower drawing shows the guide and the ejector mechanism located on the right side of the drawer fifty.

17, a drawer 50 is shown in a closed position in which both ejector mechanisms are in a locked closed position. One trunnion of the activator 5, guided in a curved guide 7 using the trunnions 10 and 12, is located at an angled end portion 71, therefore, despite the pre-tensioning of the spring 8, the activator 5 is in a locked position.

In Fig. 18, the right leash 11 (see the lower drawing) of the ejection system is unlocked, the corresponding trunnion being pulled out from the angled end portion 71. Unlocking can be carried out either by pulling on the box or by pressing on it, since, as described above, the activator 5 unlocks the leash 11 regardless of the direction of travel. On the left side (see the upper drawing), the lead 11 is still in a locked position, in which the pin 12 is held on an angled end portion 71 of the curved guide 7.

Fig. 19 illustrates a case opposite to Fig. 18, when the left side (see the upper drawing) is unlocked and the leash 11 is moved in the opening direction by means of the spring 8. The lead 11 is connected to the movable guide 3 by means of an activator 5. On the contrary, on the right side (see the bottom drawing) of the box 50, the lead 11 is still in a locked position, and the lead 11 is held with an axle on the angular end portion 71 of the curved guide 7.

If the push mechanism on the right or left side of the drawer is unlocked in the ejection system, then forced unlocking occurs on the opposite side. To do this, use the fact that the unlocked leash 11 is moved by the force of the spring 8 in the opening direction, and this force is transmitted through the activator 5 and the movable guide 3 to the drawer 50. As a result, through the drawer 50, the movable guide 3 and the activator 5 to the ejector mechanism the opposite side also acts some force, and this force is sufficient to remove the leash 11 from the locked position. For this, the middle protrusion 16 of the activator 5 enters the socket 14 and pulls the leash 11 on a straight section of the curved guide 7. As a result, forced synchronization is achieved, even if the unlocking was carried out only on one side.

In FIG. 20, the ejection system of FIG. 16 is shown with leads 11 unlocked on both sides. Both leash 11 are moved to a straight section of a curved guide 7 and, under the action of the force of the spring 8, move in the opening direction. When this leads 11 are connected to the activators 5, which protrusions 16 and 17 are included in the socket 14.

On Fig shows a sliding guide 1 ", a movable guide 3 which is mounted with the possibility of movement on a fixed guide 2, and the same parts have the same item numbers as in the previous embodiments.

A 5 ”activator is mounted on the movable rail 3 with the possibility of rotation, which enters the socket in the 11” leash. The leash 11 ”is mounted to move on two curved guides 7 and 45 of the housing 6”. The pin 10 of the 11 ”lead is guided in a curved guide 45, and the pin 12 in a 7” curved guide. When closed, the straight end section of the curved guide 45 with the help of pin 10 forms a pivot point for the 11 lead. When reaching the angled end section 71, the lead 11 ”is rotated by a trunnion 12 guided by a 7” curved guide. When opened, the rectilinear end portion of a 7 ”curved rail with a trunnion 12 forms a pivot point for a 11” leash. When The angled end portion 70 leads 11 ”to be rotated by a pin 10 guided in a curved guide 45. Turning the lead 11” unlocks the activator 5 ”or 41. In addition, installing activators 5” and 41 makes it possible to rotate them along the lead 11 "to the corner end sections 70 and 71 of the curved guides 7" and 45 in the extreme positions of the lead 11 ". Alternatively, the activators can perform, for example, with the possibility of vertical shift. 21 illustrates the closed position of the drawer, in which the leash 11 ”is locked on the angled end portion 71 of the curved guide 7” and loaded in the opening direction by the force of the spring 8.

On the fixed guide 2, a holder 46 is provided for attaching the energy accumulator 8. The energy accumulator 8 is fixed to the holder 46 using the latch 47. The spring ear at the other end of the energy accumulator 8, made in the form of a tension spring, is attached to the leash 11 ”using the pin 48. To change the spring tension, the latch 47 can be moved and fixed on holder 46.

To unlock the 11 ”leash, it is possible to pull the drawer so that after this an activator 5” connected to the movable guide 3 pulls the 11 ”leash out of the corner end portion 71, as shown in FIGS. 22A and 22B. After that, the leash 11 ”under the action of the force of the spring 8 moves in the opening direction. In addition, a second activator 41 coupled to the second driver 42 coupled to the second curved guide 43 is connected to the movable guide 3. The curved guide 43 and the driver 42 are connected to the automatic retraction mechanism 44, which holds the drawer in the closed position in the closed position. In addition, the automatic retraction mechanism 44 may include a shock absorber 49 to inhibit movement in the closing direction to avoid impact noise. Further, due to damping, excessive pressure is prevented, i.e. operation immediately after closing.

On figa and 23B, the leash 11 ”is shown in the position that occurs as a result of unlocking caused by pressing on the drawer. The activator 5 ”comprises a shelf 40 that protrudes downward, on which a front supporting surface 18” is formed. The supporting surface 18 ”is located next to the lever 25 mounted on the housing 6” with the possibility of rotation around the axis 26. The lever 25 can be pre-loaded in its original position by a spring or moved to its original position under the action of gravity. If the drawer is pressed into the furniture body, then the shelf 40 (see FIG. 23 B) moves to the right and rotates the lever 25. As a result, the upper supporting edge 27 of the lever 25 approaches the lower side of the leash 11 ”and pushes the latter up from the corner end portion 71 7 ”curved guide rail. So that the 11 ”lead is not fixed by the lower protrusion 16” located in the socket 14 ”of the 11” lead, the 5 ”activator is also mounted with the possibility of rotation, so it can be slightly turned with the lever 25 and the 11” lead clockwise until it stops. Then, after unlocking, the lead 11 ”under the action of the force of the spring 8 pulls the activator 5” in the opening direction.

On figa and 24B shows the position at which the second activator 41 passes through a fixed position of the leash 11 ". The activator 41 is made in the form of a plate and is mounted with the possibility of movement on the movable guide 3. Due to this, the activator 41 with the input bevel 56 on the leash 11 ”is rotated upward and moves in the opening direction.

If the movable guide 3 is moved in the closing direction, first the second activator 41 engages with the socket 14 ”of the lead 11” and pulls the lead 11 ”from the fixed position to pull the spring 8. In this case, the lead 11” is guided by the first pin 10 to curved guide 45, and using the second journal 12 in the curved guide 7 ". Each of the curved guides 7 ”and 45 contains an angular end portion 71 or 70, respectively, to rotate the leash 11” at the end of the guide 7 ”or 45. You can also provide only one curved guide with two angular end sections 70, 71.

When moving in the closing direction, the leash 11 ”by means of the second activator 41 is set to a fixed position on the corner end portion 71 of the curved guide 7”, and as a result of turning the leash 11 ”, the activator 41 is detached from the leash 11”, and the drawer can move further in the closing direction .

In order for the activator 5 ”to engage with the leash 11”, in accordance with FIGS. 25A and 25B, the drawer is moved further in the closing direction until the activator 5 ”reaches the input bevel 55 on the leash 11” and therefore rotates. After that, the 5 ”activator can move along the input bevel 55 until it enters the 14” socket of the 11 ”lead. At the same time, the second lead 42 of the automatic retraction mechanism pulls the second activator 41 to the closed position, so that just before closing it is not necessary to manually maintain movement in the closing direction. In addition, the automatic retraction mechanism is designed to lock the movable furniture part, that is, the drawer 50, in the closed position. Locking in the closed position prevents accidental opening, for example, due to shocks or slight tilting of furniture, in which an ejector device with a guide and a movable part of the furniture is integrated.

Of course, in the example shown in FIGS. 21-25, two rails can also be provided for the sliding part of the furniture, which, in accordance with the proposed ejection system, make it possible to unlock, even if the 11 ”lead was removed from the locked position only by one side. In this case, the force of the spring 8 of the unlocked lead 11 ”unlocks the other lead 11” on the second sliding guide.

On Fig shows another example implementation of the proposed sliding guide 1 ", which contains a fixed guide 2 and a movable guide 3, and the same parts are indicated by the same reference numbers. An activator 5 ″ ″ is connected to the movable guide 3, which can be engaged with the 11 ″ ″ lead. The leash 11 ″ ″ is directed along the curved guide 7 ″ ″ in the housing 6 ″ ″ and is preloaded by the spring 8 in the opening direction. At the end that is facing the opposite side from the leash 11 ″, the spring 8 is secured with a finger 180 to the mounting shelf 181 and the adjustment bar 182, and holes are formed in the mounting shelf 180, and cutouts are formed in the adjustment bar 182 you can enter the finger 180. Due to this, you can adjust the tension of the spring 8.

The first lever 91 is mounted on the leash 11 ″ ″ with the possibility of rotation on the support, on the opposite side of the leash 11 ″ ’the second lever 92 is mounted.

On Fig, the sliding guide 1 ″ ″ is shown in a slightly open position, and the second activator 41 on the lever 92 presses on the leash 11 ″ ″ to bring the leash 11 ″ ″ from a fixed position along the inclined section 70 ″ ″ curved guide 7 '' '.

The leash 11 ″ ″ is moved by the second activator 41 along the curved guide 7 ″ ″ until the leash 11 ″ ″ reaches the corner end portion 71 and turns down. As a result, the activator 41 is released, and the movable guide 3 can move further in the closing direction without being connected to the leash 11 ″.

29, a fixed position is reached when the activator 5 ″ ″ reaches the leash 11 ″ ″. After that, the activator 5 ″ ”runs into the pivoting arm 91 and as a result moves between the levers 91 and 92. Then, the second activator 41 engages with the leash 42, which can be moved along the curved guide 43 and is moved by the automatic retraction mechanism 44 in the closing direction then until a closed position is reached.

On figa and 30B shows the closed position of the sliding guide. The activator 5 ″ ″ is engaged with the leash 11 ″ ″ and can be unlocked by moving the movable guide 3 both in the closing direction and in the opening direction.

30B, the position of the activator 5 ″ ″ on the leash 11 ″ ″ is shown in enlarged view. The activator 5 ″ is locked behind the lever 91, and the lever 91 is pressed upward by the spring. Due to this, the activator 5 ″ ″ can engage with the lever 91 and the leash 11 ″ ″, so that as a result of moving the drawer by pulling force, the leash 11 ″ ″ will again be moved in the opening direction.

Alternatively, in accordance with FIGS. 31A and 31B, the leash 11 ″ can be unlocked by pressing the drawer. In this case, the downward-facing shelf 40 of the activator 5 ″ begins to act and, pressing the pivotably mounted lever 25, rotates it about an axis 26, so that the lever 25 pushes the leash 11 ″ ″ upward and thereby unlocks. During the opening process, the second activator 41 can move along the lever 92, and in this case, the lever 92 is rotated and again under the action of the spring force is rotated to its original position. Contact with the lever 91 is prevented due to the inclined portion 70 ″ ″ of the curved guide 7 ″ ″.

FIG. 31B shows a protrusion 16 ″ ″ and a support surface 18 ″ ″ by which the leash 11 ″ ″ is unlocked from the corner end portion 71. After unlocking, the leash 11 ″ ″ is moved along the curved guide by means of an energy accumulator 8 7 '' '. The engaging activator 5 ″ by means of a conjugated movable guide 3 moves in the opening direction the movable piece of furniture connected to it.

On Fig shows another example implementation of the proposed ejector mechanism for the sliding guide 1 "". Fig. 32 shows an ejector mechanism comprising a modified 6 ″ ″ housing in which a first curved guide 7 ″ ″ is formed with an inclined portion 70 ″ ″ at one end and an angled end portion 71 at the opposite end. In addition, a recess 64 is formed as a second curved guide in the form of a groove extending in the opening direction with a downward inclination. In the horizontal direction, a third curved guide rail 65 is made. In addition, for mounting the lever 25, a recess 66 is provided in which the axis 26 enters. Using the lever 25, the 11 ”” lead can be unlocked, having a first pin 10 and a second pin 12, which are guided by a curved guide 7 ””. Using the energy accumulator 8, made in the form of a tension spring, the 11 ”” leash is preloaded in the opening direction. The housing 6 ”” consists of two parts, so that on both sides of the leash 11 ”” is made the corresponding part of the housing with curved guides 7 ””, 64 and 65.

A holder 89 is provided on the movable rail or on the bottom of the drawer, which in the closing direction can press against the stop 90 of the 5 ”activator. The activator 5 ”” is guided between the two parts of the housing 6 ”” and contains the first vertical socket 83, in which the dog 81 is mounted on the spring, the second vertical socket 84, in which the dog 80 is mounted on the spring, and the third vertical socket 85 for the locking pin 87. Dogs 80 and 81 are preloaded downward by means of springs so that they can act on the 11 ”leash. The locking pin 87 is mounted in the activator 5 ”” with the possibility of movement in the vertical direction.

33A and 33B show an ejector mechanism mounted on a slide rail comprising a fixed rail 2 and a movable rail 3. The ejector mechanism is in a closed position in which the leash 11 ″ is locked on the corner end portion 71 of the curved rail 7 ″. The 5 ”” activator comes into contact with an elastic stop 31 ”” located in the holder 32 ””. An elastic stop prevents too much pressure - immediate new triggering of the ejector device during or almost immediately after the closing process. As shown in FIG. 33B, the drawer can be opened by pulling on it, in which case the holder 89 acts on the locking pin 87, which in turn moves the activator 5 ”” in the opening direction, so that the dog 80 with its protrusion 16 ” ”Removes the 11” leash from its locked position. In addition, opening can be achieved by moving the drawer in the closing direction, in which case the supporting surface 18 ″ of the opposite dog 81 acts on a lever 25 that pivots about an axis 26 and as a result lifts the leash 11 ″ from the corner end portion 71. After that, due to the power of the energy accumulator 8, both pins 10 and 12 of the 11 ”” lead are moved in the curved guide 7 ”” to the inclined section 70 ””.

On figa and 34B shows that the leash 11 "" approached the inclined section 70 "". As a result of the direction of the pin 10, the 11 ”” lead on the inclined portion 70 ”” turns downward so that the dog 80 disengages from the 11 ”” lead. Now the dog 80 can move above the 11 ”” lead, and the second dog 81, having an input bevel 82, as a result of contact with the 11 ”” lead, can be pressed up against the spring force and move in the opening direction. As a result of the movement in the opening direction, the locking pin 87 is displaced downward, and the locking pin 87 being guided by the guide pin 88 in the corresponding recess of the activator 5 ”.

On figa and 35B, the movable guide 3 is moved further in the opening direction, and the protrusion 90 is still adjacent to the block 89. The locking pin 87 has moved down along the guide 64, passing at an angle down, and unlocked the block 89. As a result, the movable guide 3 can move further in the opening direction and it is disconnected from the 5 ”” activator.

On figa shows the slot 93 for mounting on the housing 6 "" battery 8 energy, made in the form of a tension spring. A finger 94 is inserted into slots 93, located opposite each other in both parts of the 6 ”” case, for attaching one end of the energy accumulator 8. The finger 94 is designed so that it can be inserted into sockets 93 of the 6 ”” housing located at different positions in order to change the force of the energy accumulator 8, made in the form of a tension spring. On the leash 11 "" with the help of finger 95 secured the second end of the battery 8 of energy.

In this case, to close, the movable guide is moved in the closing direction until the block 89 starts to press on the protrusion 90, so that the activator 5 ”” moves slightly in the closing direction until the position shown in FIGS. 36A and 36B is reached. . In this position, the block 89 is again locked between the protrusion 90 and the locking pin 87, and the dog 81 is adjacent to the protrusion of the leash 11 "". Due to this, the leash 11 ″ ”moves in the closing direction along the curved guide 7 ″” until the leash 11 ″ ”with the pin 12 does not turn down on the corner end portion 71 and as a result is blocked. After this, the position shown in figa and 33B.

On Fig shows another example implementation of the proposed ejector mechanism in the mounted position.

The sliding part 101 of the furniture is made in the form of a drawer, it can be mounted with the possibility of movement in the furniture. For this, a fixed guide 102 is provided in the sliding guide, on which a movable guide is mounted with the possibility of movement. The movable rail is located in the hollow side of the drawer side 103, and the bottom 105 of the drawer is fixed to the movable rail using several holders 106. In the drawings, the direction X of movement of the sliding part 101 of the furniture is indicated by arrows.

A cabinet 107 is mounted on the lower side of the bottom 105, consisting mainly of two plate parts of the case, in which curved guides 108, 109 and 110 are made in the form of a groove. The plate activator 116 is included in the case 107, which is fixed to the furniture case or the fixed guide 102. For clarity, the drawing shows only part of the activator 116.

The retractable part 101 is held in a closed position by the retractor 104, such devices 104 are known as automatic retraction mechanisms, and can be mounted compactly next to the retractable rail.

In Fig.38, the proposed ejector device is shown in the closed position. The retractor 104 comprises a housing 140 with a curved guide 141 having an angled end portion 142. A retractor lead 143 connected to a plate activator 144 of the retractor is movably mounted in the curved guide 141 of the retractor. A shock absorber 145 is connected to the housing 140, in addition, a spring for preloading the lead 143 in the closing direction is located in the housing 140. As a result, the activator 144 located on the sliding part 101 of the furniture or the movable rail is preloaded in the closing direction. In addition, the retractor 104 may have a shock absorber to inhibit movement in the closing direction until the closing movement is achieved.

In addition, Fig. 38 shows a plate activator 116, which is fixed on one side in a nest of the carrier slide 113. On the side that is opposite to the activator 116, the carrier slide 113 comprises a first movable dog 114 and a second movable dog 115, which are mounted on the springs and can be pressed into the carrier slide 113. In the closed position, the second dog 115 is engaged with the carrier 111, which is mounted so that it can be guided by the pins in the curved guide 118. Using the batteries energy torus constructed as a tension spring 112, the lead 111 pre-loaded in the opening direction. The end of the spring 112, which faces the opposite side from the lead 111, may be secured to the housing 107. At the corner end portion 171 of the curved guide 108, the lead 111 may be locked against the force of the spring 112. An angular end portion is also formed at the opposite end of the curved guide 108. 170, on which the leash 111 can be rotated.

Since the leash 111 is in the locked position, no forces are exerted on the housing 107 in the opening direction through the levers 113. A retractor 104 holds the extension 101 in the closed position.

In Fig. 39, the ejector device is shown while the leash 111 is unlocked. To unlock, the extension 101 is pressed into the furniture body, so that the first dog 114 presses the pivot arm 130 of the ejector device. The lever 130 of the ejector device is mounted on the housing 107 to rotate around the axis 131. One shoulder 132 of the lever 130 is adjacent to the dog 114, while the opposite shoulder 133 is adjacent to the leash 111. As a result of pressing in the sliding part 101, the lever 130 of the ejector device rotates counterclockwise arrows around the axis 131, so that the shoulder 133 moves the leash 111 from the angled end portion 171 of the curved guide 108. As a result, the leash 111 is unlocked and moves by the force of the spring 112 I along the curved guide 108. The lead 111 with the tip 150 presses against the stop 151 of the drive slide 113, so that the slide 113 moves together with the lead 111. As a result, the integral wall 117 made at the same time presses on the stationary activator 116, so that the housing 107 together with the sliding part 101 moves in the opening direction.

40, the ejector device is shown in a slightly open position. The lead 111 is located in the middle portion of the first curved guide 108, and the force of the spring 112 continues to act on it. As a result, the carrier slide 113 also moves to the right, and the carrier slide 113 can move along the second curved guide 110. The curved guide 110 has a straight shape, so the carrier the slides 113 with the help of the guide parts move in a straight line along the housing 107. In addition, a movable stop 118 is provided on the slide rails 113, which, with the help of the pin 119, can move eschatsya a third cam guide 109. The third cam rail 109 is angled to the second cam guide 110, so the motion stop 118 of the flanged slide 113 to the right (see. Figure 40) moves down. When this emphasis 118 is held in an elongated hole 120 with the ability to move perpendicular to the direction of motion of the carrier slide 113.

In the position shown in FIG. 40, the retractor 104 is disconnected from the activator 144, as the lead 143 is moved along a curved guide 141 to an angled end portion 142 and, after rotation, is set to a fixed position. As a result, the activator 144 of the retractor is unlocked, after which it can move further in the opening direction regardless of the leash 143.

In Fig. 41, the ejector device is shown in a position in which the leash 111 has reached the angled end portion 170 and therefore rotates. In the rotated position, the dog 115 and the carrier slide 113 can move further to the right regardless of the carrier 111, so that the housing 107 together with the extension piece 101 moves in the opening direction. The extension 101 is now no longer fitted by the spring 111.

The movable stop 118 moves further along the curved guide 109 and falls even more downward, with the activator 116 still being held in the slot between the movable stop 118 and the wall 117.

42, the ejector device is shown in a position in which the movable stop 118 is moved down so that the plate activator 116 is unlocked. As a result of this, the housing 107 together with the drive rails 113 can move further in the opening direction, that is, independently of the fixed activator 116. Upon further movement in the opening direction, the first dog 114 slides along the lead 111, is briefly pushed up against the spring force and is blocked again behind the leash 111, and for this purpose, a corresponding input bevel 124 is formed on the dog 114.

On Fig shows the position when the sliding part 101 of the furniture again moves in the closing direction. First, the dog 114 engages with the lead 111 and leads it out of a fixed position on the angular end portion 170, the lead 111 being moved along a curved guide 108 against the force of the spring 112. The wall 117 of the carrier slide 113 is supported by the activator 116, so that the slide 113 moves along curved guide 110.

On Fig shows the position of the ejector device before reaching the closed position. The slide carrier 113 is moved along the curved guide 110 so that the movable stop 118 is again located behind the activator 116, and the activator 116 is held between the movable stop 118 and the wall 117. The first dog 114 moved the lead 111 along the curved guide 108 so that the spring 112 is almost completely tensioned . In the position shown, the retractor activator 144 acts on the leash 143 so that the latter is released and the retractor 104 is activated.

On Fig, the ejector device is shown before reaching the closed position, in which the leash 111 has reached the corner end portion 171 and is locked against the force of the spring 112. As a result, the leash 111 is rotated, and the first dog 114 can now move along the leash 111. The slide carrier 113 is now can move further along the second curved guide 110, and the retractor 104 pulls the extension 101 in the closing direction, so that the latter, after tensioning the spring 112 and locking the lead 111, can To be accommodated without additional user effort. Thus, the retractable piece of furniture 101 retracts automatically.

In Fig. 46, the ejection device is shown shortly before reaching the closed position. The second dog 115 slides along the leash 111 with its inlet bevel. The slide rails 113 are still moving in the closing direction by the retractor 104.

On Fig shows the closed position in which the second dog 115 is locked behind the tip 151 of the leash 111. The dog 115 is also spring-loaded on the carrier slide 113. The movable stop 118 as a result of movement along the curved guide 109 and in the elongated hole 120 is again extended, so the activator 116 concluded between the movable stop 118 and the wall 117. Thanks to the spring shock absorber 122, the ejector device cannot accidentally start the opening process again after closing. In addition, the spring shock absorber 122 creates a gap between the front panel and the furniture body to make it possible to start the ejection device by pressing in the closing direction.

When unlocked, the sliding part 101 of the furniture was pressed into the furniture body, so that the release of the lead 111 occurred using the lever 130 of the ejector device. Of course, the leash can also be unlocked by also pulling on the sliding part of the furniture, since in this case the leash 111 is pulled out from the angled end portion 171, after which it can reach the position shown in FIG. 28 without moving the lever 130. The lead 111 is again in the middle portion of the curved guide 108 and is unlocked. Otherwise, the ejection process and subsequent closure occurs as described above.

The proposed ejector devices can be used with all rectilinearly moving furniture parts, for example, together with sliding doors.

Item Numbers

1 extendable guide

1 'extendable guide

1 ”extendable guide

1 '' extendable guide

1 ”” extendable rail

2 fixed guide

3 movable guide

5 activator

5 'activator

5 ”activator

5 '' 'activator

5 ”” activator

6 building

6 'case

6 ”housing

6 ”” housing

7 curved guide

7 'curved guide

7 ”curved guide

7 '' curved guide

7 ”” curved guide

8 battery energy

8 'energy battery

9 holder

10 axle

11 leash

11 'leash

11 ”leash

11 '' 'leash

11 ”” lead

12 axle

13 middle guide

14 nest

14 ”socket

16 ledge

16 'overhang

16 ”protrusion

16 '' 'ledge

16 ”” protrusion

17 ledge

18 ledge

18 input bevel

18 ”bearing surface

18 '' 'bearing surface

18 ”” bearing surface

19 elongated hole

20 screw

20 'screw

21 contact surface

21 'contact surface

22 contact surface

22 'hook

25 lever

26 axis

27 support edge

30 regiment

31 emphasis

31 ”” emphasis

32 holder

32 ”” holder

40 regiment

41 activators

42 leash

43 curved guide

44 automatic retraction mechanism

45 curved guide

46 holder

47 lock

48 finger

49 shock absorber

50 drawer

51 bottom

52 holder

53 side drawer

55 input bevel

56 input bevel

60 building

64 guide / notch

65 curved guide

66 notch

70 end section

70 '' 'incline section

70 ”” inclined section

71 end section

80 doggy

81 dogs

82 input bevel

83 socket

84 notch

85 socket

87 locking pin

88 guide pin

89 block / holder

90 protrusion / emphasis

91 lever

92 lever

93 nests

94 fingers

95 finger

101 extendable part

102 fixed guide

103 side drawer

104 retractor

105 bottom

106 holder

107 building

108 curved guides

109 curved guides

110 curved guides

111 leash

112 tension spring

113 slide carrier

114 dog

115 dog

116 activator

117 wall

118 curved guide

118 emphasis

119 axle

120 elongated hole

122 shock absorber

124 input bevel

130 ejector lever

131 axis

132 shoulder

133 shoulder

140 retractor housing

141 curved guide

142 terminal section

143 retractor leash

144 retractor activator

145 shock absorber

150 tip

151 emphasis

170 end section

171 terminal section

180 finger

181 mounting shelf

182 adjustment bar.

Claims (22)

1. The ejector mechanism, in particular for movable furniture parts, which contains a curved guide (7, 7 ', 7``, 7' '', 7 '' ''), along which the leash can move (11, 11 ', 11``, 11 '' ', 11' '' '), wherein the lead (11, 11', 11``, 11 '' ', 11' '' ') is preloaded in one direction with at least one battery (8, 8 ') of energy and can be locked in the closed position on a curved guide (7, 7', 7``, 7 '' ', 7' '' ') by the battery (8, 8') of energy in the loaded state , and an activator (5, 5 ', 5' ', 5' '', 5 '' '') configured to engage e with a leash (11, 11 ', 11``, 11' '', 11 '' ''), at least in the closed position, the activator (5, 5``, 5 '' ', 5' '' ') is installed with the possibility of movement relative to the curved guide (7, 7``, 7' '', 7 '' ''), or the curved guide (7 ') is installed with the possibility of movement relative to the activator (5'), and in the closed position the leash (11, 11 ', 11``, 11' '', 11 '' '') can be unlocked by moving the activator (5, 5``, 5 '' ', 5' '' ') relative to the curved guide (7, 7``, 7 '' ', 7' '' ')) or moving the curved guide (7') relative to the active ora (5 '), characterized in that the activator (5, 5', 5``, 5 '' ', 5' '' ') as well as / or a curved guide (7, 7', 7``, 7 ' '', 7 '' '') can be shifted both in the first direction and in the opposite second direction to unlock the leash (11, 11 ', 11``, 11' '', 11 '' ''). 2. The ejection mechanism according to claim 1, characterized in that the leash (11, 11 ', 11``, 11' '', 11 '' '') is mounted to rotate from a closed position as a result of relative movement between the activator (5 , 5 ', 5' ', 5' '', 5 '' '' ') and a curved guide (7, 7', 7``, 7 '' ', 7' '' '). 3. The ejection mechanism according to claim 1 or 2, characterized in that the activator (5, 5 ', 5``, 5' '', 5 '' '') has a first contact surface (16, 16 ', 16' ' , 16 '' ', 16' '' ') to unlock the leash (11, 11', 11 '', 11 '' ', 11' '' ') as a result of movement in the first direction and located at some distance from the first contact surface (16, 16 ', 16``, 16' '', 16 '' '') the second contact surface (18, 18 ', 18 ”, 18' '', 18 '' '') to unlock the leash (11 , 11 ', 11``, 11' '', 11 '' '') as a result of movement in the second direction. 4. The ejection mechanism according to claim 1 or 2, characterized in that the leash (11, 11 ', 11``, 11' '', 11 '' '') has two pins located not at some distance from each other (10, 12) that are meshed with a curved guide (7, 7 ', 7``, 7' '', 7 '' '') in the shape of a groove. 5. The ejector mechanism according to claim 1 or 2, characterized in that the curved guide (7, 7 ', 7``, 7' '', 7 '' '') has at least one angular end section (70, 70 '', 70 '' ', 71), on which the leash (11, 11') can be locked in the closed position. 6. The ejector mechanism according to claim 1 or 2, characterized in that the activator (5, 5``, 5 '' ') essentially covers the leash (11, 11``, 11' '') in the form of the letter U. 7. The ejector mechanism according to claim 3, characterized in that the leash (5, 5`` ') has a hook on which the first and second contact surface (16', 16 '' ', 18', 18 '' ') are formed . 8. The ejector mechanism according to any one of claims 1, 2 or 7, characterized in that at least one lever (25) is provided, driven by an activator (5, 5``, 5 '' ', 5' '' ' ) and / or curved guide designed to unlock the leash (11, 11``, 11 '' ', 11' '' '). 9. The ejector mechanism according to claim 8, characterized in that the lever (25) is mounted to rotate on the housing (6``, 6 '' ', 6``' '), in which a curved guide (7``, 7 '' ', 7' '' '). 10. A sliding guide, in particular for drawers, comprising a fixed guide mounted on the furniture body and a movable guide (3) mounted with the possibility of movement, characterized by the presence of an ejection mechanism made according to any one of the preceding paragraphs. 11. A sliding guide according to claim 10, characterized in that the activator (5, 5 ') is mounted on the movable guide (3) with the possibility of its adjustment in the direction of movement of the movable guide (3). 12. The sliding guide according to claim 10 or 11, characterized in that the curved guide (7, 7``, 7 '' ') is fixed to the fixed guide (2). 13. A sliding guide according to claim 10 or 11, characterized in that an elastic stop (31, 31 ', 31' '' ') is provided to limit the movable guide (3) with an activator (5, 5', 5 '' '' ) in the closed position. 14. The sliding guide according to claim 10 or 11, characterized in that a shock absorber is provided for braking the movable guide (3) before reaching the closed position. 15. A sliding guide according to claim 10 or 11, characterized in that the activator (5, 5 ', 5``) is mounted on the movable guide (3) with the possibility of rotation and / or movement and may engage with the leash (11, 11 ', 11' '). 16. The ejection system containing the first and second ejection mechanism, made according to any one of claims 1 to 9, connected to each other through a movable piece of furniture (50). 17. The ejection system according to clause 16, characterized in that when the leash (11, 11 ', 11``, 11' '', 11 '' '') of the first ejection mechanism from the locked locked position is unlocked, the leash (11 , 11 ', 11' ', 11' '', 11 '' '' ') of the second ejection mechanism. 18. The ejector mechanism, in particular for movable furniture parts, which contains a curved guide (7, 7 ', 7``, 7' '', 7 '' ''), along which the leash can move (11, 11 ', 11``, 11 '' ', 11' '' '), with the leash (11, 11', 11``, 11 '' ', 11``' ') using at least one battery (8, 8 ') the energy is preloaded in one direction and can be locked in the closed position on the curved guide (7, 7', 7``, 7 '' ', 7' '' ') by the battery (8, 8') of energy in the loaded state , and an activator (5, 5 ', 5' ', 5' '', 5 '' '') configured to engage leash (11, 11 ', 11``, 11' '', 11 '' ''), at least in the closed position, and at a certain distance from the activator (5, 5 ', 5``, 5' '', 5`` '')) a dog (41, 81) is installed, characterized in that in the direction of opening the dog (41, 81) can pass by a leash (11, 11 ', 11``, 11' '', 11 '' ''), and in the opposite direction of closing, the dog (41, 81) can engage to move the leash (11, 11 ', 11' ', 11' '', 11 '' '') in the closing direction. 19. The ejector mechanism according to claim 18, characterized in that the dog (41, 81) is mounted for movement or rotation, and when moving in the opening direction, it can engage with the leash (11, 11 ', 11``, 11 ''', eleven''''). 20. The ejector mechanism according to claim 18, characterized in that the activator (5, 5 ', 5' ', 5' '', 5 '' '') contains a movable or rotatable part (92), which may engage the dog (41, 81) when moving in the opening direction. 21. The ejector mechanism according to any one of claims 18 to 20, characterized in that the dog (41, 81) can be connected to the automatic retraction mechanism (44), by which the activator (5, 5 ', 5' ', 5' '', 5 '' '')) can be moved to the closed position. 22. The ejector mechanism according to any one of claims 18 to 20, characterized in that the dog (41, 81) moves the leash (11, 11 ', 11``, 11' '', 11 '' '') in the closing direction in the extreme position in which the leash (5, 5 ', 5``, 5' '', 5 '' '') rotates and as a result is disconnected from the dog (41, 81).

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