DE19828698A1 - Protection against nipping for automatically operated motor vehicle doors or tailgates - Google Patents

Abstract

An operating device automatically closes a door or tailgate (1), locks and unlocks it as well as opening it. During the closing or opening action an acoustic signal is given off and an elastic protective section (2) closes up the remaining gap (7) between the door or tailgate and part of the bodywork (3) in the final stage of the closing action

Description

The invention relates to a pinch protection for automatically operated doors or Flaps of motor vehicles, with an operating device to be operated the door or The flap automatically closes, locks and / or unlocks and opens.

In automobiles, it is desirable for convenience and safety reasons to operate a remote control from the passenger compartment, the closing and / or Trunk lid opening mechanism starts. To avoid accidents, safety devices are required to prevent tampering with the trunk People get trapped.

The German patent DE 31 11 711 C2 describes a pinch Security device for doors and windows, in which a signal transmitter according to the Position of the door emits position signals and the time intervals of these signals over a electrical measuring device can be compared with predetermined time intervals. The The specified time interval corresponds to the signal sequence from the previous one Closing process in the same position. If the signal comparison shows none Agreement, that is, the measured time interval is greater than the predetermined, see above is a control signal to stop or reverse the movement of the door or of the window triggered.

The German patent application DE 30 03 877 A1 describes a similar one Anti-pinch device. Certain time periods are specified within which the closing door must have reached a certain position. If the door does not reach the pre-programmed position due to resistance in time, the closing process is stopped and a reversing process is triggered. This pinch protection is realized by a signal transmitter coupled to the door, one or more memory elements for detecting the position signals, a logical one  Circuit and a device for stopping and reversing are present. In this System will be the logic circuit output signals of the memory elements as well Signals supplied by the limit switch coupled to the door, which in turn is a control signal delivers to the actuator.

Furthermore, from DE 43 29 535 A1 a To use hollow profile that provides two opposite conductive areas, one conductive base area and a conductive arched profile area. Both areas are separated by insulating profile sections. With a corresponding pressure the hollow profile is pressed together and the two conductive areas touch and trigger an electrical contact and as a result a switching process that the Drive mechanism stops.

All known solutions have the disadvantage that a large circuit and Control engineering effort is required to prevent pinching enforce. Extreme climatic conditions can also cause failures or Misdirection. The conductive hollow profiles require one in their manufacture high manufacturing costs, since conductive and insulating areas within one Profile bar must be present.

The invention has for its object a pinch protection for automatically to create actuatable doors or flaps of motor vehicles, the one the highest possible level of functional reliability guaranteed.

The object is achieved by a pinch protection with the features of independent claims 1 and 6 solved. Advantageous training and further education of Invention are set out in the subclaims.

According to the invention, an acoustic signal sounds immediately when the door or flap is moved Signal. The acoustic signal can be both a voice signal and a warning tone.

According to an advantageous embodiment of the invention, the warning tone changes to Dependency of the detected closing angle of the door or flap. Advantageously  the frequency of the warning tone changes, with one in the final phase Closing the warning tone can be designed as a continuous tone.

The warning triggered in the initial phase of the closing process unmistakably pointed out to a person operating in the open space withdraw from the danger zone. This will pinch you in time leaning forward.

According to a further embodiment of the invention, only from a defined closing angle the door or flap, d. H. in the final phase of the closing process, an acoustic Warning signal issued. This has the advantage that the handling in the open space Person is made aware of the dangerous situation.

Should be a body part despite the intensive warning in the final phase of the closing process as hand or fingers are grasped, an elastic protective profile ensures that is attached to a body part or the door or flap and over an edge stands out due to its flexibility that the body part before locking can be withdrawn. On the other hand, the remaining gap is closed so that a Access or intervention is not possible. The protection profile has an advantageous in essential S-shaped shape the property of easy pushing away and Adapt to the changeable remaining gap. The profile can be easily manufactured. Instead of an S-shaped lip, slats stacked together can also be used Use come in the blind-like the changed conditions when closing adjust the door or flap.

According to a preferred embodiment of the invention, the through Remote operation initiated closing process interrupted or reversed become. This is done in such a way that a sensor, for example a electrical conductor, when contacting and the resulting change in a electrical size of the closing process canceled or a reverse process triggered becomes. The conductor lies at the highest point of the protection profile in order to resist Bring the movement of the door or flap to a standstill as quickly as possible.  

The pinch protection according to the invention preferably comes in the case of trunk lids or Hoods of motor vehicles for use.

The invention is described in more detail below using an exemplary embodiment.

The associated drawings show:

Fig. 1 to 6 are schematic representations of the arrangement of the protective profile during the closing process.

During the closing process, the tailgate 1 touches the S-shaped elastic protective profile 2 , which is attached to the body part 3 , in the final phase of the movement sequence. The remaining gap 7 is relatively wide, so that any parts of the body that are still detected, such as the arm, hand or fingers, can be pulled out. ( Fig. 1) In the further closing process, the elastic protective profile 2 is pressed down and the remaining gap 7 is reduced. ( Fig. 2) After the trunk lid 1 has reached its end position, the elastic protective profile 2 is in its lowest position. It is supported on the body and on the trunk lid ( Fig. 3).

In a further embodiment of the invention, an electrical conductor 5 is arranged on the upper edge of the protective profile 2 and an insulating film 4 is arranged on the underside of the trunk lid 1 . If there is a body between the electrical conductor 5 and the trunk lid 1 with insulating film 4 , the closing process is aborted or a reversal process is initiated upon contact by changing an electrical size ( FIG. 4). Instead of a rubber lip, laminated slats 6 , which are also fastened to the body part, are suitable for covering the remaining gap between the trunk lid 1 and the body 3 ( FIG. 5). When the end position of the trunk lid 1 is reached , the slats 6 are pressed down into the joint 7 ( FIG. 6).

Reference list

1

Trunk lid, door, flap

2nd

Rubber lip, protective profile

3rd

Body part, body

4th

Insulating film

5

electrical conductor, sensor

6

Slats, protection profile

7

Residual gap

Claims (10)

1. Pinch protection for automatically operated doors or flaps of motor vehicles, wherein an operating device to be operated automatically closes, locks and / or unlocks and opens the door or flap, characterized in that during the closing and / or opening process of the door or flaps ( 1 ) an acoustic signal is triggered. 2. Pinch protection according to claim 1, characterized in that during the closing process of the door or flap ( 1 ) the closing angle of the door or flap ( 1 ) is detected and a variable acoustic signal is emitted as a function of the closing angle. 3. Pinch protection according to claim 2, characterized in that the acoustic signal is a warning tone and the frequency of the warning tone is a function of the closing angle of the door or flap ( 1 ). 4. Pinch protection according to claim 2 or 3, characterized in that the warning tone there is a continuous tone in the final phase of the closing process. 5. Pinch protection according to claim 1, characterized in that the acoustic signal is emitted only as a function of a defined closing angle of the door or flap ( 1 ). 6. Pinch protection for automatically operated doors or flaps of motor vehicles, wherein an operating device to be operated automatically closes, locks and / or unlocks and opens the door or flap, characterized in that in the final phase of the closing process on a body part ( 3 ) or Door or flap ( 1 ) fastened and flexible, elastic protective profile ( 2 , 6 ), which has an edge, closes a residual gap ( 7 ) between the door or flap ( 1 ) and the body part ( 3 ). 7. pinch protection according to claim 6, characterized in that the elastic protective profile is a substantially S-shaped lip ( 2 ) which is fixed to the body part ( 3 ) or the door or flap ( 1 ) and whose lower convex part presses a closing and locking process into a joint and supports the curvature that forms on the body part ( 3 ) and the door or flap ( 1 ). 8. Pinch protection according to claim 6, characterized in that the elastic protective profile consists of laminated slats ( 6 ) which move like a blind when touching the door or flap. 9. Pinch protection according to one of claims 6 to 8, characterized in that a sensor ( 5 ) is provided on the door or flap ( 1 ), which, when it comes into contact with an obstacle, a sensor signal to abort the closing process or to trigger of a reversal process. 10. Pinch protection according to one of claims 1 to 9, characterized in that the door or flap ( 1 ) is a trunk lid and / or a hood.