This application claims priority to DE 10 2004 009 366.0, filed Feb. 26, 2004.
The invention relates to an actuating apparatus for a lock, in particular a door lock and/or panel lock of a motor vehicle or tractor.
Known actuating apparatuses for motor vehicle locks have a handle body, in which a pushbutton with a movable lock cylinder is mounted. The pushbutton can be transferred from a first operating state into a second operating state and vice versa by means of a key which fits into the lock cylinder. In the first operating state, a lock can be actuated by means of the pushbutton, so that it opens. In the second operating state, the pushbutton, when actuated, executes an “empty stroke”, so that despite the button being pressed, an actuation, i.e. an opening of the lock, does not occur. The associated motor vehicle door or motor vehicle flap is therefore locked.
Furthermore, it is known to enable the locks to interact with a remote-controllable locking unit, for example within the context of a central locking system of the motor vehicle. In the case of known arrangements of actuating apparatus and lock together with a remote-controllable locking unit, it is disadvantageous that a large amount of space is necessary and a multiplicity of parts and a high structural outlay are required. Furthermore, it is expensive and laborious to install and secure the components.
It is the object of the invention to provide an actuating apparatus for a lock, in particular a motor vehicle door lock or panel lock, in particular for a tractor, which does not need much space and has a remote-controllable locking and/or unlocking functionality.
This object is achieved by an actuating apparatus having the features of claim 1. Advantageous embodiments are indicated in the subclaims which are dependent thereon.
The invention is described below by way of example with reference to the drawing, in which:
As shown in
As viewed from the side, the handle body 2 is designed as an essentially U-shaped handle bracket, with a base limb 10, a first U-limb 11 and a second U-limb 12. The U-limbs 11, 12 each have end sides 13 with which the handle body 2 can be fastened, for example, to a door outer skin of a motor vehicle. The second U-limb 12 has, along an actuating longitudinal axis 14, which extends in the limb direction and is also the longitudinal movement axis of the pushbutton 3 together with the lock cylinder 4, a plug-in opening 15 for the pushbutton 3. The plug-in opening 15 opens into a plug-in channel 15a which completely penetrates the second U-limb 12. A bushing-shaped receiving device 16 which has an essentially cylindrical outer shape extends from the end side 13 of the second U-limb 12. An elongate groove or a blind-hole recess 17 extends away from the plug-in opening 15, and opening into the latter and to the outside, to over approximately ⅔ of the base limb 10, said elongate groove or blind-hole recess 17 following the contour of the U-limb 12 and of the base limb 10. The blind-hole recess 17 in the base limb 10 is connected in the region of its end 18 lying opposite the plug-in opening 15, just above its groove base, to a groove-type depression 19 or a groove, which is open opposite or extends from an inside 20 of the base limb 10 and of the first U-limb 11 as far as the end side 13 of the first U-limb 11, or said blind-hole recess 17 follows the contour of these parts. The groove-type depression 19 can be covered or can be closed by means of the covering 7, which is essentially an L-shaped design with a first covering limb 7a and a second covering limb 7b.
The locking device 5 is designed in the manner of a plug-in module for plugging into the blind-hole recess 17 of the handle body 2 and has a cross-sectionally rectangular housing 21 with a housing main part 22 and a lateral housing cover 23. As viewed from the side, the housing 21 is of essentially an L-shape design and has a longer first L-limb 24 and a shorter second L-limb 25. The first L-limb 24 corresponds to the blind-hole recess 17 in the base limb 10. The second L-limb 25 corresponds to the blind-hole recess 17 in the region joining the latter to the plug-in opening 15, and, in the assembled state, comes to lie in the transition region between the second U-limb 12 and the base limb 10. Electric lines 26 lead off at the free end of the first L-limb 24. The second L-limb 25 has, toward the plug-in opening 15, an outer surface 27 which is designed in the shape of a section of a concave cylinder, such that the plug-in opening 15 together with the outer surface 27 is circular in cross section. A projecting slide 28, which is described in more detail further below, projects from the outer surface 27 of the locking device 5 for a distance into the plug-in opening 15.
The pushbutton 3 has a pushbutton upper part 30 and a pushbutton lower part 31. The lock cylinder 4 sits in the pushbutton upper part 30 by means of a clip connection. A sealing ring 32 which interacts with the inside of the plug-in opening 15 and seals off the gap between the pushbutton upper part 30 and the plug-in opening 15 is arranged on the outside of the pushbutton upper part 30.
In the following, the construction of the pushbutton 3, which together with the actuating element 8 forms an actuating device, together with the lock cylinder 4 will be described in more detail with reference to
The cylindrical tube section 32a has opposite, rectangular window-type cutouts 40 with a lower edge 41, two side edges 42 and an upper edge 43. The two window-type cutouts 40 have the same extent in terms of area. The lower edge 41 and the upper edge 43 are each parallel to the annular end surface 35. The side edges 42 are parallel to the actuating longitudinal axis 14.
The lock cylinder 4 has a blocking body 50 and a rotating body 51a. Small lock plates 51 are mounted in a known manner in the blocking body 50. Furthermore, the blocking body 50 has a tumbler 52 as a means of securing it against falling out, said tumbler 52 being intended in a known manner to prevent the blocking body 50 from rotating in the compressive part 33. The rotating body 51 has, eccentrically with respect to the actuating longitudinal axis 14, an eccentric nipple 53 which protrudes downward for a distance in the axial direction from the rotating body 51.
The pushbutton lower part 31 has a punch section 60 and a tube section 61. The punch section 60 has, along the actuating longitudinal axis 14, at a free end 62 of the punch section 60, a threaded hole 63 for receiving the actuating element 8. The tube section 61 has an outside diameter which corresponds to the inside diameter of the cylindrical tube section 32a of the pushbutton upper part 30. The tube section 61 extends away for a distance from the punch section 60 and, corresponding to the window-type cutouts 40, has latching projections 64 which are dimensioned, with regard to their three-dimensional shape, in such a manner that they can interact in a latching manner with the lower edge 41 of the window-type cutouts 40. With regard to the width, the latching projections 64 are dimensioned in such a manner that they can be moved up and down in the window-type cutouts 40 guided by the side edges 42. Adjacent to the latching projections 64, the tube section 61 has end steps 65 situated somewhat lower down. The end steps 65 serve to support a slide guide 66 which is described in more detail further below. Aligned in the longitudinal direction, one of the latching projections 64 has a stop tab or stop web 67 as an extension of the tube section 61 upward. The stop tab 67 has a three-dimensional shape in the form of a section of a cylindrical tube wall, and has an upper, free end edge 68 and side edges 69. Directly in the longitudinal axial direction 14, adjacent to the associated latching projection 64, the stop tab 67 has an outwardly projecting, curved stepped shoulder 70 which has a step upper side 71 in the form of a section of a circular ring. As shown in
As best shown in
The slide 78 is a first coupling link and has a three-dimensional form essentially in the shape of a disk and has rectilinear, opposite guide edges 79 which interact with the guide surfaces 77, so that guiding of the slide 78 between the circular disk sections 76 is ensured. The end edges of the slide 78 are in the form of a circular arc. The outside diameter of the slide 78 between the end edges corresponds to the inside diameter of the cylindrical tube section 32a. A u-shaped recess 80 extends from one of the guide edges 79 into the interior of the slide 78. In the assembly, the eccentric nipple 53 of the lock cylinder 4 engages in this u-shaped recess 80. In the assembly, the slide guide 66 sits with the circular disk sections 76 on the end steps 65 of the tube section 61. As best shown in
The construction of the locking device 5 according to the invention will be described in detail below with reference to
The housing main part 22 has a three-dimensional shape which, as viewed from the side, is essentially L-shaped and U-shaped in cross section, with a housing base wall 91, a first, L-shaped side wall 92 and a second, L-shaped side wall 93 and an end side wall 94. The second side wall 93 has the outer surface 27 in the region of the plug-in opening 15, which outer surface, together with the plug-in opening 15, forms a cross-sectionally circular passage. The base housing wall 91 has, in the region of the first L-limb 24, a first, long base wall section 91a and, in the region of the second L-limb 25, a second, short base wall section 91b. The base wall sections 91a and 91b merge one in the other with a base wall curved section 91c.
The first side wall 92 has a first, long side wall section 92a in the region of the first L-limb 24, a second, short side wall section 92b in the region of the second L-limb 25 and a side wall curved section 92c in between. The second side wall 93 has a first, long side wall section 93a in the region of the first L-limb 24, a second, short side wall section 93b in the region of the second L-limb 25 and a side wall curved section 93c in between, the first, long side wall section 93a and the side wall curved section 93c together in the assembly forming a surface which is aligned with the surface of the handle body 2.
In the assembly, the end side wall 94 bears flush against the free end 18 of the blind-hole recess 17. The end side wall 94 has, in the region of the side wall 92, two recesses 95 through which the electric lines 26 can be led out of the housing interior.
A motor axial drive 100, for example a lifting magnet with a magnet body 101 and a piston rod 102, which is guided in a central hole and protrudes out of the hole, is arranged in the region of the first L-limb 24. The piston rod 102 is connected outside the magnet body 101 via a transverse pin 103 to a drag lever or drag arm 104 which sits in front of the head on the piston rod. The drag lever 104 has, in the region of its free end 105, a slot-type recess 106 which extends perpendicularly with respect to the longitudinal extent and in which is mounted a pin 107 which extends transversely with respect thereto and via which the drag lever 105 is connected to a first lever arm 111 of a two-armed reversing lever 108. The reversing lever 108 has a hole 109 with which it is mounted pivotably on an axis 110 which extends away vertically from the base wall 91 in the region of the base wall curved section 91c. The reversing lever 108 has a second lever arm 112 lying opposite the first lever arm 111. The axial drive 100, the drag lever 104 and the first lever arm 111 of the reversing lever 108 are arranged in the region of the first L-limb 24 of the housing 21. The second lever arm 112 of the reversing lever 108 protrudes from the axis 110 into the second L-limb 25 of the housing 21. The reversing lever 108 has an actuating section 113 in the region of the free end of the second lever arm 112. The actuating section 113 tapers toward the free end and has a sliding surface 114 which points in the assembly toward the plug-in opening 15. Axial extension of the axial drive 100 in a direction 120 causes the reversing lever to pivot via the drag lever 104 about the axis 110 in a direction 121.
The second base wall section 91b has a rectangular, L-shaped angled groove 122 with a short first groove limb 122a and a long second groove limb 122b. The first groove limb 122a runs parallel to the actuating direction 120 of the axial drive 100. The second groove limb 122b runs parallel to the actuating longitudinal axis 14. At the free end of the first groove limb 122a, the latter ends in the transition region between the base wall section 92c and the second side wall section 92b of the side wall 92. A stop console 123 for the slide 28, which will be described further below, is integrally formed, laterally aligned with the groove limb 122a, on the inside of the second side wall section 92b. Opposite the second side wall section 92b, the side wall section 93b has, below the outer surface 27, a recess from which the slide 28 protrudes.
The slide 28 is a further coupling link and has a slide plate 130 and a stop tab or stop web 131 which, perpendicularly from the slide plate 130, extends away from the end of the slide plate 130 in the region of one end thereof. The stop tab 131 has a free edge 131a and has a width which is smaller than or equal to the clear width of the window-type cutouts 40. In the region of the other end of the slide plate 130, a projection 132 is integrally formed on each side of the slide plate 130. In the assembly, the projections 132 run in the angled groove 122, i.e. they are in engagement with the angled groove limbs 122a and 122b. Opposite the angled groove 122 in the base wall 91, an angled groove 122′ with a first angled groove limb 122a′ and a second angled groove limb 122b′ is likewise formed in the cover 23. The angled grooves 122 and 122′ serve for guiding the slide 130. In an operating position, the slide plate 130 rests on the supporting console 123. The slide plate 130 furthermore has an essentially square reach-through window 133 through which the free end 113 of the reversing lever 108 reaches. The stop tab 131 of the slide 28 has a three-dimensional shape which is in the form of a cylindrical tube wall and the inside diameter of which corresponds approximately to the outside diameter of the tube section 61 and the outside diameter of which corresponds approximately to the outside diameter of the cylindrical tube section 32a. As an extension of the slide plate 130, a slide projection 134 which has a channel in the form of a circular arc at its free end extends beyond the stop tab 131, the channel approximately corresponding in respect of its diameter to the inside diameter of the tube section 61.
The housing 21, in which the axial drive 100, the drag lever 104, the reversing lever 108 and the slide 28 are mounted, therefore form the locking device 5 which can be inserted into the handle body 2 in the manner of a module or cassette.
The assembly of the actuating apparatus 1 according to the invention will be described in more detail below with reference to
In the assembly, the compression spring 6 at one end is supported on a base wall of the receiving device 16 and at the other end rests against the annular end surface 35 of the cylindrical tube section 32a of the pushbutton upper part 30. The pushbutton lower part 31 is connected by means of the previously described clip connection to the pushbutton upper part 30 in a manner such that they can be displaced axially in the direction 81. The pushbutton upper part 30 is mounted in the handle body 2 by means of the sealing ring 32 in the plug-in opening 15 in interaction with the outer surface 27. The pushbutton lower part 31 reaches through a hole in the base wall of the receiving device 16 and is connected to the actuating element 8. The reversing lever 108 reaches with its 113 through the slide plate 130 of the slide 28, the slide 28 being guided in the grooves 122, 122′, in the housing 21. The window-type cutouts 40 of the pushbutton 3 are arranged in such a manner that the window-type cutout 40, in which the stop tab 67 of the pushbutton lower part 31 is arranged, lies opposite the slide 28. The slide 78, which can be actuated manually via the lock cylinder 4, is in engagement with the eccentric nipple 53 of the lock cylinder 4 and can be displaced to and fro by means of the eccentric nipple 53 in a direction perpendicular with respect to the axis 14, for example by rotation of the lock cylinder 4 by a key.
In the following, a first operating position (“central locking system or locking device 5 open”) will be described with reference to
According to
In the second operating position according to
In the operating position of the locking device 5 according to
In the case of the actuating apparatus according to the invention, it is particularly advantageous that the latter is of particularly compact construction and permits the manual closing and opening and also a remotely actuable opening and closing. A further particular advantage is that the electrically controllable locking device 5 is designed in the manner of a module or cassette and is inserted into the handle body, and a variation of the actuating apparatus with and without a remote-controllable unlocking functionality can therefore be realized in a simple manner. By means of omission of the locking device 5 and by means of a simple closing of the slot-type recess in the handle body 2 by a cover or a panel (not shown), the actuating apparatus according to the invention can optionally be designed with and without a remote-triggering functionality. A costly installation, for example in a door body of a motor vehicle, as conventionally takes place, is unnecessary.
While the above description constitutes the preferred embodiment of the present invention, it will be appreciated that the invention is susceptible to modification, variation and change without departing from the proper scope and fair meaning of the accompanying claims.
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