JP4106334B2 - Device for moving parts - Google Patents

Description

[0001]
2. Description of the Related Art The present invention is an apparatus for moving a member described in the upper conceptual part of claim 1, wherein the member can be turned or tilted toward at least one stopper strip by a motor. Related to things.
[0002]
A drive device for a movable member known from DE 198449245, for example, opens and closes a side turning window of a vehicle. In this case, the side swivel window is pivotally arranged, for example, on a chassis, which is a B column of the vehicle, and can be moved between a closed position and an open position using an electric motor type adjustment driving device. In this case, the electric motor is connected to the side turning window through a reduction gear transmission for driving the drive shaft, using a ball head at the end of the drive shaft and a corresponding ball socket.
[0003]
If a driver operates such a side-swivel window automatically using a switch on the dashboard, the passenger's (child) body part on the rear bench may be clamped or pinched, and there is a risk of injuries. There is.
[0004]
Advantages of the invention The device according to the invention arranged as described in the characterizing part of claim 1 has the following advantages. That is, in the apparatus according to the present invention, the clamp of the object or the body part in the motor-operated side turning window can be recognized in a timely manner by the clamp prevention sensor arranged along the stopper strip. Accordingly, it is possible to effectively avoid the risk of injury due to clamping or pinching irrespective of the open state of the side window.
[0005]
Another advantageous configuration of the device according to claim 1 is described below.
[0006]
In contrast to the window raising / lowering principle of the side glass plate that is operated in a stroke, the glass plate of the side turning window presses a defined portion of the stopper strip immediately after the closing operation starts. Therefore, it is particularly advantageous if the anti-clamp sensor has two conductors with a predetermined resistance along the stopper strip. It is advantageous if the resistance of both conductors changes in relation to their length. When configured in this way, the location of the pressing point is specified along the stopper strip, and this makes it possible to distinguish between the clamping phenomenon and the normal closing action. The stopper strip must therefore not be less than a certain degree of elasticity, thereby ensuring that locally restricted pressing points occur on the one hand during the closing operation and on the other hand when the clamp occurs.
[0007]
In a particularly advantageous conductor arrangement, an electrical contact is created between the two conductors when pressed against the stopper strip. A short circuit that occurs in relation to this position provides a measurement for the location of the pressed location on the stopper strip.
[0008]
It is advantageous if the resistance is measured at the opposite end of the electrical contact between both open conductor ends. And since the measured resistance value continuously decreases when the side swivel window is closed without any obstacles, the resistance measurement curve of the normal closing operation can deviate from the resistance measurement value of the clamping phenomenon.
[0009]
When closing the side swivel window by swiveling or tilting, the pressing point along the stopper strip is more slowly on the hinge or axis side than on the side with the open conductor end in the almost closed state. Change. Therefore, it is particularly advantageous if the resistance of the conductor increases in an increasing proportion toward the window hinge from the open end of the resistance pickup. If it becomes like this, the position of a press location can be clarified more uniformly and correctly over the full length of a stopper strip.
[0010]
By defining the closed position of the window using the measured resistance value as in the device according to the invention, a controlled opening and closing of the window is possible. In this manner, similarly, starting from an arbitrary intermediate position can be performed without any problem. This makes it possible to omit an additional position sensor device (hall sensor) for movement adjustment operation.
[0011]
Of particular interest, the clamping phenomenon is detected by a dramatic or rapid rise in resistance measurements. This makes it possible to reliably stop and reverse the motor in each case and thus significantly avoid the risk of injury.
[0012]
By detecting the clamp position, the closing force at the clamp position can be obtained based on the distance to the window hinge. This allows the motor to be stopped and / or reversed in an advantageous manner in relation to the closing force limit value.
[0013]
Since the device according to the present invention can regulate or measure the thickness or thickness of the clamping object, it can estimate the type of the body part that is sandwiched. Thus, for example, when it is determined that a finger is pinched, the motor can be reversed quickly compared to when the arm is pinched, for example. At the same time, when the force from the drive during the closing operation is measured, the type of clamping object can be determined more accurately from the detected thickness or thickness of the clamping object and the observed increase in force. Is possible. That is, the error rate is reduced by adapting the anti-clamping device to the thickness or thickness of the clamping object and thus to the estimated characteristics.
[0014]
In a further advantageous configuration of the invention, a conductive plastic is arranged between two parallel conductors. In this case, when the glass plate or the clamped object presses the stopper strip, the plastic is compressed and its resistance is reduced. This principle corresponds to the electrical contact in the first embodiment, but the following advantages are obtained: both conductors are turned on again when the window is opened or when the clamped object is removed. Provides the advantage of returning exactly to its starting position. This deformable conductive plastic provides reproducible conditions and can be manufactured at low cost. The elastic properties of the plastic also make it possible to elucidate the clamping force of the anti-clamp device.
[0015]
In another advantageous configuration of the invention, the electrical conductor is arranged inside an elastic hollow body. In this way, the conductor can be protected from contamination and weather effects. Similarly, the elasticity of the hollow molded body ensures that both conductors return to their starting positions when pressure is no longer applied to the stopper strip.
[0016]
In a further advantageous configuration of the invention, the anti-clamp sensor has the function of a sealing member or is incorporated in the sealing member, whereby such a configuration provides a waterproof and water-resistant side swivel window. A closing action that prevents intrusion is guaranteed. Such a combined solution is inexpensive, saves structural space in the window frame, and eliminates the need to change the structure of the window frame.
[0017]
Furthermore, the functionality of the anti-clamp sensor can be inspected by heat by continuously measuring the resistance between the ends of both conductors. A cable break or short circuit is then immediately recognized and informs that the clamp prevention device has failed.
[0018]
Next, an embodiment of the apparatus according to the present invention will be described with reference to the drawings.
[0019]
FIG. 1 is a cross-sectional view showing an embodiment of an apparatus for moving a side turning window;
FIG. 2a is a diagram showing resistance measurements when the side swivel window in FIG.
FIG. 2b is a diagram showing resistance measurements when something is clamped in the side swivel window in FIG.
3a is a cross-sectional view showing one embodiment of the anti-clamp sensor shown in FIG.
FIG. 3b is a cross-sectional view showing another embodiment of the anti-clamp sensor shown in FIG.
FIG. 3c is a cross-sectional view showing still another embodiment of the anti-clamp sensor shown in FIG.
[0020]
DESCRIPTION OF THE EMBODIMENTS FIG. 1 shows an embodiment of the device according to the invention for moving a side swivel window 9, in which a glass plate 10 moves a hinge 12 or a rotating shaft 14. It is fixed to a window frame, for example, a B-pillar of an automobile. The glass plate 10 can be moved using a motor 18, which is operatively coupled to a ball socket 24 provided on the glass plate 10 via a ball head 22 of a threaded spindle 20. In order to move the glass plate 10, the glass plate 10 is swung toward the stopper 26 about the rotation shaft 14, and as a result, the glass plate 10 is closed like a bowl. When the hinge 12 is configured so that the glass plate 10 can perform a translational motion in addition to a swiveling motion when the glass plate 10 is opened and closed, this is referred to as tilting with respect to the stopper strip 26 (Verkippen). An anti-clamp sensor 28 is provided along the stopper strip 26. The anti-clamp sensor 28 mainly has two conductors 30 extending in parallel with each other and with a small gap therebetween. Since both conductors 30 are constructed as metal wires having a constant cross section, their total resistance increases in direct proportion to their length 32. Both conductors 30 are coupled to each other at an end 34 near the hinge. On the other side, resistance is continuously measured between the open ends 36 of the conductor 30 using an ohmmeter 38 and the measured value is supplied to a control unit 39 which controls the motor 18.
[0021]
When the glass plate 10 is closed, the glass plate 10 starts from the closed end 34 of the conductor 30 (l _max ) and presses both the conductors 30 toward each other. They contact each other at 40 to form an electrical contact 42. During the course of the closing operation, the pressing point 40 and consequently the electrical contact 42 is moved from the closed end 34 of the conductor 30 to the open end of the conductor 30 in the closed state (l ₀ ) of the window. Move to section 36. At this time, the resistance measured by the ohmmeter 38 continuously decreases from the start value 44. The diagram of FIG. 2a shows such a resistance change for an unobstructed closing operation. When the resistance change is directly proportional to the length 32 of the conductor 30, the resistance change draws a straight line over the length of the anti-clamp sensor 28. The resistance start value 44 in the open window (l _max ) corresponds to the total resistance of both conductors 30 coupled to each other. In the closed window 9, both conductors 30 are shorted over their entire length 32, in which case the measured resistance is zero. If, for example, the closed ends 34 of both conductors 30 are left open, the resistance start value 44 becomes infinite in the opened window 9, and the resistance is not applied for the first time when both conductors 30 are started to close. Jumps to a start value of 44. The measured value curve allows a unique correspondence between the pressure point 40 and the position in the anti-clamp sensor 28. This function, however, is not the same as the resistance value measured for the distance traveled by the glass plate 10 along the threaded spindle 20. This function shows a much smaller resistance change in the almost open window 9 than in the almost closed window 9.
[0022]
Since the possibility of clamping is equal across the length of the stopper strip 26, in an alternative embodiment both conductors 30 are connected as follows: the resistance of both conductors 30 is related to their length 32. It can also be configured to increase in an increasing proportion towards the closed end 34 of both conductors 30. This is most simply achieved by tapering the conductor cross section 46 towards the hinge 12 (see FIGS. 3a-3c). Another possibility is to change the material of the conductor. In such a configuration, the resistivity of the conductor material is continuously increased toward the hinge 12. This allows a uniform position elucidation with respect to the travel distance along the threaded spindle 20. It is simplest if the moving distance of the spindle 20 is directly proportional to time. A corresponding curve 43 of the measured resistance value is shown in FIG. The carp 43 indicates that the resistance increases in an increasing proportion with the length 32 of the conductor 30.
[0023]
When an object 45 having a certain size is present between the glass plate 10 and the anti-clamp sensor 28, a regular drop 47 of the resistance value is measured when the window 9 is closed. The resistance curve at this time is shown in FIG. 2b. The resistance value drops continuously when the window 9 is closed until the glass plate 10 presses the object 45 against the anti-clamp sensor 28 to form an electrical contact 42 between the two conductors 30. By forming the electrical contact 42, the resistance value at the pressing point 40 (l _S ) of the continuous closing operation jumps to the resistance value 46 at the clamping point. The control unit 39 recognizes this sudden resistance drop 47 as the occurrence of a clamp (Einklemmfall), and stops the motor 18 and / or reverses the motor 18. The resistance value 46 occurring after a jump or abrupt drop 47 corresponds to the position in the unclamped closed-curve anti-clamp sensor 28 and thus indicates the position of the Einklemmereignis l _E. The value 49 of the resistance drop 47 corresponds exactly to a specific distance along the anti-clamp sensor 28 during an unhindered closing operation. In the known angular geometry of the side swivel window 9, this distance is directly a value for the thickness or thickness of the clamped or pinched object 45. This information can be processed by the control unit 39 in order to identify the operating limit value (Ausloeseschwelle) for stopping / reversing the motor 18.
[0024]
3a to 3c show different variations of the anti-clamp sensor 28 in cross-section. In FIG. 3a, both conductors 30 are arranged in parallel inside an elastic hollow molded body 48 made of, for example, a woven-reinforced rubber. The hollow molded body 48 is as follows, that is, the glass plate 10 or the object 45 to be clamped always forms the electrical contact 42 in the form of an arrow 50 along the anti-clamp sensor 28 at all times. Must be elastic. On the other hand, the hollow molded body 48 must be rigid as follows, that is, the hollow molded body 48 moves both conductors 30 to their original positions again reproducibly after the extinction of the external pressure. Don't be. A T-shaped double molded body 52 is provided on one side, and this T-shaped double molded body 52 engages with a corresponding molded body in the window frame 16. In FIG. 3b, instead of both conductors 30 having a circular cross section 53, two conductors 30 having a flat, square cross section 54 are provided, both conductors 30 being conductive and deformable. These are connected or coupled to each other using plastic 56. The plastic 56 has a relatively high electric resistance in a non-pressure state where no pressure is applied. When the glass plate 10 or the object 45 presses the clamp prevention sensor 28 along the direction of the arrow 50, the plastic 56 is compressed. At this time, the resistance of the plastic 56 is significantly reduced, so that this reduction in resistance corresponds to the formation of the electrical contact 42. The conductive plastic 56 also has the characteristic that it again has its original shape and its original resistance under pressure load. The plastic 56 and the protective sheath 58 surrounding the plastic have the following properties. In other words, the electrical contacts 42 are simply formed in the form of dots along the anti-clamp sensor 28 in the longitudinal direction between the two conductors 30 having a flat and rectangular cross section 54.
[0025]
In order to effectively seal the glass plate 10 against the window frame 16 when closed, the anti-clamp sensor 28 shown in FIG. 3b is arranged inside the seal molding 60 shown in FIG. 3c. In this case, the material of the sealing member 60 is optimized with respect to its sealing properties, and the conductive plastic 56 is optimized with respect to its resistance drop. The shape of the seal member 60 is matched with the molding shape of the window frame 16 and the glass plate 10. However, it is also possible for the conductor 30 to be integrated directly into the sealing body 60 as shown in FIG.
[0026]
Since the resistance of the system is measured continuously, the control unit 39 confirms this based on the fact that as soon as one of the two conductors 30 breaks, an almost infinite resistance of the anti-clamp sensor 28 occurs. . Similarly, it is also monitored whether both conductors 30 have returned to their original positions when opened and upon removal of the clamped object 45. In this case, the measured resistance is compared with a reference curve in an unhindered closing action. Such a clamp prevention sensor 28 is ideally attached to the upper and lower stopper strips 26 in the side turning window 9 of the automobile. For the stopper strip extending in the vertical direction, it is not necessary to detect the position characteristic of the clamping phenomenon. This is because, in such a place, the glass plate 10 presses the stopper strip for the first time just before being closed over the entire length of the stopper strip. However, it is possible to use the same anti-clamping sensor 28 for such strips and to connect with the control unit 39 accordingly. The system for moving the turnable or tiltable part is not limited to a car.
[0027]
In the following, the mode of action of the system according to the invention will be described together. The resistance between the open ends 36 of both conductors 30 is measured. When the glass plate 10 is closed, the two conductors 30 are pressed against each other with the closed end 34 as a starting point (l _max ). The resistance pick-up is continuously inspected or investigated or compared to a reference curve. At the time of closing without obstacles, the resistance measurement is assigned or associated with the simultaneously closing position 1 _S of the glass plate 10. When a dramatic or sudden resistance drop 47 occurs, the motor 18 is stopped and / or reversed.
[0028]
The value 49 of the resistance drop 47 is additionally measured, and based on this, the clamp position l _{E of the} object 45 is defined. From the difference between the closed position l _S of the glass plate 10 and the clamp position l _E of the object 45, the thickness or thickness of the object 45 is obtained. Clamp Position l _E and the thickness or thicknesses may be utilized to determine the operating limits of the clamp prevention. When an almost infinite resistance is generated, it is indicated that the anti-clamp device is not functional.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of an apparatus for moving a side turning window.
2a is a diagram showing resistance measurements when the side swivel window in FIG. 1 is closed without obstruction.
2b is a diagram showing resistance measurements when something is clamped in the side swivel window in FIG. 1;
FIG. 3a is a cross-sectional view illustrating one embodiment of the anti-clamp sensor shown in FIG.
FIG. 3b is a cross-sectional view showing another embodiment of the anti-clamp sensor shown in FIG.
FIG. 3c is a cross-sectional view showing still another embodiment of the anti-clamp sensor shown in FIG.

Claims (12)

Device for moving a member (10) closing an opening in a motor vehicle , which can be pivoted or tilted towards at least one stopper strip (26) by means of a motor, clamped along the stopper strip (26) A prevention sensor (28) is arranged, and the measurable resistance value of the anti-clamp sensor (28) decreases continuously during the unoccupied closing operation of the member (10) and rapidly A resistance drop is recognized as a clamp occurrence, and the anti-clamp sensor (28) has two conductors (30) that are substantially parallel to each other and spaced from each other, The resistance of the conductor (30) increases based on a function related to its length (32), and the member (10) contacts along the stopper strip (26) when closed, and both conductors ( 0), as an electrical contact (42) is caused towards each other, characterized in that pressing, moving the member for closing the opening in a motor vehicle device. The member (10) is movably supported using a hinge (12), and both conductors (30) at the end (36) of the conductor (30) opposite the hinge (12). Between the two conductors (30) and the electrical contact (42) or pressing point (40) between the two conductors (30) becomes conductive in the hinge (12) during the closing operation of the member (10). end of the body (30) to (34) as a starting point, the opposite side of the moving towards the end (36), according to claim 1 Symbol mounting apparatus of the conductors (30). The resistance of the conductor (30) increases in an increasing proportion relative to the length (32) of the conductor (32), starting from the end of the conductor in the resistance pickup (36). Item 3. The apparatus according to Item 2 . It measured resistance value at the time no closing operation failure, the member corresponds to a defined closed position (10) Apparatus according to claim 2 or 3 wherein. Device according to any one of claims 2 to 4 , wherein the motor (18) is stopped and / or reversed when the measured resistance value suddenly drops (47). 6. The device according to claim 5 , wherein the measured resistance value (46) indicates the position of the clamped object (45) based on the drop in resistance value (47). 7. A device according to claim 5 or 6 , wherein the thickness or thickness of the clamped object (45) is determined from a resistance value (49) at a defined position. A deformable and conductive plastic (56) is disposed between two conductors (30) that are parallel to each other and spaced from each other, the resistance of the plastic being reduced by compression. The apparatus according to any one of 1 to 7 . Mutually parallel and two conductors located at a distance from each other (30) is disposed within the elastic hollow profile (48), according to any one of claims 1 to 8 apparatus. It said member (10) is a motor vehicle side pivot window (10), is sealed by a stopper strip (26) when closed, device according to any one of claims 1 to 9. The device according to claim 10 , wherein the anti-clamp sensor (28) is formed as a seal member (60) or is incorporated in the seal member (60). Always inspect the functionality clamping prevention sensor (28) with a continuous resistance measurement apparatus of any one of claims 1 to 11.

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