Unlocking device

The present invention is an unlocking device for a control portion having an actuating magnet guided within a coil body and / or within a housing portion of the actuating magnet, wherein the actuating portion has a first actuating portion. The rocking path for the control device, which is movable along the axis and is swingably arranged around the second axis in the operating position, is released, and the control device has a lock portion, said. The lock portion is unlocked via the control device using the actuating portion to release a moving path for the control portion to be driven.

This type of device is known (see Patent Document 1). The unlocking device can be used for a number of applications. The unlocking device is provided with an actuating magnet, especially where it is important that the actuating process for the technical component is realized with the desired and reliable function. This is because the working magnets for that purpose are used with empirically reliable functions even in rough daily driving, for example, when vibration or shock occurs. This type of unlocking device unlocks safety technically important components, especially in the automotive area, with the back of the seat user's head in the event of a crash, whether in the form of a rollover protective arch structure to stand up. It works, even in the form of headrests that move forward, to reduce the free contact distance between the headrest and the head contact surface.<patcit num="1"><text>German Patent Application Publication No. 10215054A1</text></patcit>

<p> An object of the present invention is to provide an unlocking device which is compact and has a structure that functions reliably even under rough driving conditions.</p>

<p> According to the present invention, this problem is solved by an unlocking device having all the features of claim 1.</p><p> Due to the special shaft arrangement of the unlocking device according to the present invention, the working magnet with the working part and the swinging lever that swings laterally is housed in a very small built-in space, so that the device is placed inside the automobile. Can be accommodated without taking. Due to its space-saving construction, this unlocking device has traditionally provided the operating process for the first time in the prior art, where in some cases complex ropes or bowden wires have only been introduced through relatively large distance sections. , Used in places of direct working process.</p><p> In the unlocking device based on the present invention, the swing lever of the control device is guided in the housing portion so as to swing around the second axis, in which case the second axis is relative to the first axis. One free end of the swing lever is in contact with the actuating portion and, in that case, at the other end of the swing lever, the locking portion Is held in the locked position. Based on the swing lever used, the unlocking process is actuated unimpeded, with no time delay after actuation of the actuating magnet by energization.</p><p> In that case, it is preferable that the control portion further uses an energy storage device to urge unlocking for the swing lever while the actuating magnet is actuated, to the extent that the swing lever is centered on the second axis. Swings to the unlock position. Based on the control part urged with the energy storage device, the unlocking process operates smoothly, without delay and rapidly, which also addresses the high safety requirements for operating the safety device in real time.</p><p> The placement is done so that the locking portion is guided within the housing portion and is held in a position unlocked by the blocking portion to prevent the control portion from being inadvertently newly locked. You can also do it. Thereby, if the already activated safety device is inadvertently returned to its initial position and then newly activated, for example, the safety device itself or its part is first replaced with a new part before starting a new drive. It is guaranteed that by having to be done, the task can no longer be met with certain features. When spring arrangements are used, preferably for the control part, as well as for the blocking part, the respective operating or blocking states are, according to principle, only by the technical actuating type of the type of spring or spring member. Formed, it considers high practicality requirements.</p><p> Another preferred embodiment of the unlocking device based on the present invention is the subject of other subclaims.</p><p> Hereinafter, the unlocking device for the control portion based on the present invention will be described in detail based on the examples shown in the drawings. In that case, the figure is a principle display, not according to the dimensions.</p>

The unlocking device for the control portion 10, shown in the perspective view of FIG. 1, shows its most important component, such as the working magnet 12. The working magnet 12 has a coil body 14 with a coil winding not shown in detail, in which the cylindrical or bar-shaped working magnet 12 is guided movably in the longitudinal direction. There is. The operating magnet 12, which is formed in the form of a normal electromagnet, has the operating portion 16 inward when the coil body 14 is energized via the connector 18, and therefore the rear view plane when viewed in the line-of-sight direction of FIG. It is designed to be drawn in the direction of. When the coil body 14 is not energized, a return spring (not shown in detail) projects the working portion 16 over the front side of the coil body 14 including the front side of the working magnet 12 with a predetermined overhang amount. It can be restored. Therefore, to that extent, the actuating portion 16 is movably arranged along the first axis 20.

At the actuating position of the unlocking device shown in FIG. 3, the actuating portion 16 is pulled rearward by the actuating magnet 12 and thus extends laterally with respect to the first axis 20 as shown by the arrow in FIG. The flow path 22 is released, and the control device 24 swings clockwise along the swing path 22 about the second axis 26 extending parallel to the first axis 20. To that end, the second shaft 26 is formed, for example, as a swing shaft or swing pin, to the extent that it guides its free end on the termination side within a housing portion 28, preferably made of a suitable plastic material. Has been done. As further shown in FIGS. 1 to 3, the control device 24 has a lock portion 30, which is provided by the actuating portion 16 via the control device 24 with a movement path 32 indicated by an arrow in FIG. Release for control part 10 to drive. As long as FIGS. 1 and 2 correspond to the locked position for the control part 10, the locking part 30 can at least partially surround the control part 10 and lock it in such a locked position. ,it is obvious.

The control device 24 has a swing lever 34 as shown in detail in FIG. As already shown, the swing lever 34 is swingably guided in the housing portion 28 about the second shaft 26, the housing portion for easy display. It is omitted in Figure 4. The swing lever 34 is in contact with the operating portion 16 at one of the free ends of the operating magnet 12 when the operating magnet 12 is not activated, and in that case, according to the display shown in FIG. 4, the operating portion 16 is actuated. It has entered the coil body 14 of the magnet 12, and as far as it is, the swing path 22 for the swing lever 34 is released. To that extent, with the actuated portion 16 pulled back, the anterior side of the actuated portion forms a flat anterior plane with the anterior side of the coil body 14 facing the observer of FIG.

According to the display according to FIG. 4, there, the swing lever 34 is shown in a position where it is not yet activated, so that the control portion 10 is held in the locked position at the other end of the swing lever 34 to that extent. ing. The lock portion 30 of the control device 24 is formed in the form of a hooked opening 36, so such a lock portion 30 can be placed in the center, and thus in the center of the device, in a balanced force (Figure). 1), the control lever 34 has an axial displacement portion 38 to be able to guarantee its centering. Therefore, due to the unlocking process, the hooked opening 36 swings clockwise around the swing shaft 26 from the lock position shown in FIGS. 1 and 2 to the unlock position shown in FIG.

In a predetermined application task, as soon as the actuating portion 16 is pulled into the coil body 14, a rotary spring or the like is placed on the second shaft 26 itself in order to move the swing lever along the swing path 22. It is also possible to install it. However, in this case, in the state where the operating magnet 12 is activated, the control portion 10 is urged to unlock for the swing lever 34 from the outside by the energy storage device, and then the swing lever is moved to the second shaft 26. Swings around to the unlocked position. To that end, the control portion 10 has a bow spring, preferably in the form of a double bow spring 40, which is controlled along the path 32 with its energy storage device unlocked in the form of spring energy. Allows swing away from the controller 24 for portion 10, especially around a third axis 42 parallel to the first and second axes 20, 26. Therefore, it is sufficient to actuate the actuating magnet 12 to allow unlocking to be performed externally, based on the intrinsic dynamics of the control portion 10 in the form of a double bow spring 40.

The working magnet 12 is formed in a cup shape and has a ring-shaped coil body 14 to the extent that the winding end thereof is appropriately connected to the connector 18. As the actuating portion 16, the coil body 14 has a flat tubular actuating rod, which actuating rod has a cup shape similar to the ring-shaped coil body 14 and is longitudinal within the coil body. It is guided so that it can move in the direction. Further, as is clear from FIG. 4, the swing lever 34 is at least partially the outer peripheral surface of the actuating portion 16 so as to be tapered in the shape of a claw at the free end portion facing the actuating portion 16. It has a curvature that matches the curvature of (see also Fig. 2). The bow portion 44 of the double bow spring 40 described above fits into the lock portion 30 of the control device 24 at the lock position, in which case the two round springs 46 corresponding to the double arrangement are the third. Surround the shaft 42 in the center.

As shown in the display of FIG. 3, when the control portion 10 is swung so as to return counterclockwise about the shaft 42, the bow-shaped portion 44 is refitted into the hooked opening 36 and the swing lever is inserted. 34 swings counterclockwise to its initial position as shown in FIG. When the actuating magnet 12 is not energized for a long time, the actuating portion 16 projects, for example under the action of a return spring (not shown in detail), in which case its outer peripheral surface is again directly abutted inside the swing lever 34. Thus, to that extent, the unlocking device can be "sharpened" again through a reasonable recovery process. For example, if a portion of the safety device (not shown) or the safety device itself is to be replaced in an attempt to prevent it, the bow portion 44 again unintentionally unintentionally locks the lock portion 30 and its hooked opening. Engagement with 36 must be prevented. To prevent this, the locking portion 30 must be held in its unlocked position as shown in FIG. For this purpose, the blocking portion 48 shown in FIG. 5 is used, which prevents inadvertent new locking of the control portion 10.

The blocking portion 48 preferably also comprises a bow spring 50, the free spring end 52 of the bow spring being guided at least partially along the housing portion 28 to a position where the control portion 10 is released. can do. In order to clarify the situation, in FIG. 5, a part of the wall of the housing portion 28 is removed in order to explain the action of the bow spring 50 on the upper side of the lock portion 30 with respect to the front view. At the position shown in FIG. 5, the bow spring 50 as the blocking portion is shown at the blocking position. When the unlocking process is activated, the locking portion 30 pops up into the tightening gap between the spring ends 52. In that case, the spring end portion 52 sandwiches a part of the lock portion 30 between the spring end portions so that the lock portion 30 is held at the unlocked position shown in FIG. When the bow-shaped spring 50 is moved downward by hand when viewed in the line-of-sight direction of FIG. 5, the free spring end 52 slides along the diagonal guide 54 of the housing portion 28, so that the spring end 52 moves. It opens apart from each other and then releases the swing path for the locking portion 30, which allows the locking portion to return to the locked position again. In the new unlocking process, the locking member 30 is again blocked in its unlocked position as the bow spring 50 interlocks while the locking portion 30 bounces upwards again to form a holding gap for the locking portion 30. Therefore, it cannot be swung so as to return to the locked position carelessly.

The unlocking device according to the invention is used for a number of applications, where a single spring (not shown) is also conceivable instead of the control part 10 in the form of a double bow spring arrangement 40. Other technical components, such as parts of the rollover protective arch structure, are also held by the hooked opening 36 of the lock portion 30 so that the area of application can be arbitrarily expanded to that extent. Further, the embodiment shown in FIG. 1 can be used as an unlocking device without a housing portion, or a separate housing portion (not shown) forms a housing for the device at the assembly site.

The solution based on the present invention is also characterized in that the function is controlled via one lever in the form of a swing lever 34.

<figref num="1">The front view of the main part of the apparatus based on the present invention is shown in a perspective view.</figref><figref num="2">The device shown in FIG. 1 is shown from the side in a locked state.</figref><figref num="3">The device shown in Fig. 1 is shown from the side in the unlocked state.</figref><figref num="4">The upper surface of the working magnet is shown in a perspective view.</figref><figref num="5">The housing of the device with the inserted blocking member is partially cut open and shown.</figref>