Device for unlocking a vehicle door

Abstract

A device (1) for unlocking of a vehicle door for a vehicle, the device having an actuation element (2) comprising an actuation portion (27) and a flexible deployable strap portion (28), the strap portion being connected to a Bowden cable (11), wherein the Bowden cable (11) and the actuation element (2) are arranged on a floor panel (9) and / or a vehicle door, and the actuation element (2) is connected to a rotatably arranged ring lever (5) such that the Bowden cable (11) connected to the ring lever (5) is movable when the ring lever (5) is rotated by the actuation element (2), characterized in that the ring lever (5) comprises a preferably circular ring lever portion (8) against which the actuation element (2) partly abuts.

Description

Technical Field

[0001] This invention relates to a device for unlocking vehicle doors. Background Technology

[0002] Door unlocking systems with mechanical actuation elements are known in many variations. Typically, the door is unlocked by actuating a lever-like handle, which pulls the Bowdenzug cable. Less common variations include actuation elements with a portion, particularly an actuating ring for door unlocking. The actuating ring operates the Bowdenzug cable by means of a deflection rod, or by deflection of a deflection roller, to unlock the door directly in a very small design space. When directly actuated via a deflection roller with a small diameter, a large force is required to unlock. The force requirement increases significantly due to friction generated at the deflection point, and the actuating ring also experiences destructive stress.

[0003] CN 109695385 A discloses an internal door actuator for unlocking a vehicle door, having an opening handle made of a soft material. CN 211776653 U describes an internal door actuator for unlocking a vehicle door, having a stretchable strip-shaped opening handle. Summary of the Invention

[0004] The problem solved by this invention is to optimize a device for unlocking vehicle doors with an actuating element.

[0005] According to the present invention, this problem is solved by a device for unlocking vehicle doors having the features described below.

[0006] According to the present invention, a device for unlocking a vehicle door includes an actuating element comprising an actuating portion and a flexibly deployable band portion connected to a Bowden wire. The Bowden wire and the actuating element are arranged on a base plate and / or on the vehicle door. The actuating element is connected to a rotatably arranged ring bar such that the Bowden wire connected to the ring bar is movable as the ring bar rotates through the actuating element. The ring bar preferably has a circular ring bar portion, with the band portion partially abutting against this circular ring bar portion. By abutting the rotatable ring bar with the band portion abutting, deflection around the component is avoided, thus preventing friction and minimizing wear on the band portion. The band portion abutting against the ring bar and / or separating the actuating element into the actuating portion and the band portion allows for the use of tactilely appealing materials, such as materials with lower component strength. Using the ring bar, the lever arm can be extended compared to the deflection of the band portion, thus reducing the actuating force. The actuating element may preferably be made of a polymer material or a textile material. This provides a comfortable tactile feel for the operator when gripping and actuating the actuating portion. The actuating element, or one of its two parts, can also be made from a combination of different materials. The design or characteristics of the actuating element can be influenced by weaving fibers. To further explore the potential for weight reduction, surrounding components or functions can be integrated into the base plate. A cover on the base plate can serve as a guide for the actuating element or for selectively introducing design elements. In a preferred configuration, the base plate has advantageous component characteristics due to its ribbed structure.

[0007] According to an advantageous configuration of the invention, a Bowden wire rod rotatably arranged on the base plate and / or door is connected to a ring rod via a connecting rod, such that the Bowden wire connected to the Bowden wire rod is movable when the ring rod rotates via the actuating element. The ring rod is rotatable about a first ring rod axis, and the Bowden wire rod is rotatable about a second Bowden wire rod axis. The axes of the ring rod and the Bowden wire rod can be supported by means of bearing bushings to reduce friction in the joint. Using the Bowden wire rod, in addition to the first arm of the ring rod, the second arm can be configured to further reduce the actuation force. By dynamically connecting the ring rod, connecting rod, and Bowden wire rod, a significant threshold can be integrated during actuation. The operator receives tactile feedback on when the door unlock has been successfully activated. This provides an improved feel during the unlocking process.

[0008] According to another advantageous configuration of the invention, the actuating portion and the belt portion are integrally connected. Due to the integral configuration of the actuating element, no additional connecting elements are required, and therefore there are no weaknesses in the actuating element.

[0009] According to another advantageous configuration of the invention, the actuating portion is configured as a ring or hook. The actuating portion can have different shapes for gripping. For example, the actuating portion can be configured as a strap, line, elbow, handle, or knob. In a preferred configuration, the actuating portion can be folded at its end for gripping the actuating element and is connected in a material-locking manner by forming a first connecting portion. Thus, a secure connection can be created without additional intermediate elements.

[0010] According to another advantageous configuration of the invention, the belt portion of the actuating element is fastened to the first ring rod shaft. By using the first ring rod shaft simultaneously as the rotation shaft of the ring rod and as the belt portion for fastening the actuating element, additional fastening elements or connection points are omitted, thereby reducing additional weight. The belt portion can be folded at its ends for fastening to the rotation shaft of the ring rod and can be connected in a material-locking manner. Therefore, a secure connection can be created without any additional intermediate elements.

[0011] According to another advantageous configuration of the invention, a spring for retracting the actuating element is arranged between the base plate and / or the door and the ring rod or Bowden rod. When the actuating element is pulled, the spring is tensioned and, after actuation, returns the actuating element to its original position.

[0012] According to another advantageous configuration of the invention, a microswitch is provided, which is actuated by rotating a ring rod or Bowden rod at a first angle, thereby enabling electrical control for lowering the door window glass and / or the electric door lock. Actuation of the microswitch can be configured to electrically unlock the door before mechanical unlocking. Actuation is therefore more comfortable for the operator because the actuating element does not need to be fully pulled out, and only the necessary actuating force is applied for a short time.

[0013] According to another advantageous configuration of the invention, door unlocking is mechanically performed via the Bowden wire when the ring rod or Bowden wire rotates to a second angle greater than the first angle. For electrically operated unlocking systems, the mechanical unlocking function serves as an emergency release when the door unlocking system is used in the event of a microswitch or power supply failure. Furthermore, additional functions can be achieved when the microswitch is actuated, such as lowering the window glass when the door is unlocked. In the case of a purely mechanical lock, the internal door actuation mechanism located downstream of the microswitch can be completely omitted to further reduce weight.

[0014] According to another advantageous configuration of the invention, the device includes a second spring disposed on a base plate and / or on a door, the second spring having a second cam disposed on a Bowden rod to form a tactile force threshold between a mechanical door unlocking system and an electric door unlocking system. The second spring cooperates with the cam portion such that, by applying a greater force, the second spring adjacent to the bottom of the Bowden rod slides above the cam portion as the Bowden rod rotates about a second Bowden rod axis. The second spring has a U-shaped profile. In the assembled state, the second spring is prestressed, and the closed portion of the second spring abuts against the bottom of the Bowden rod. The second cam is disposed on the bottom of the Bowden rod and has a cam portion. The cam portion has a pitch opposite to the bottom of the Bowden rod. When the ring rod rotates, the Bowden rod rotates about a second Bowden rod axis. The cam portion rotates against the closed portion of the second spring. Further rotational movement is only possible by applying a greater force. By applying a greater force, the second spring slides above the cam portion, and the lock is mechanically unlocked upon further rotation. Thus, mechanical actuation and electric actuation are clearly separated. The operator receives improved tactile feedback during actuation.

[0015] According to another advantageous configuration of the invention, the connecting rod includes at least one bent or flexural portion. Due to limited design space, a direct connection between the ring rod and the Bowden rod is not always possible. Utilizing the bent or flexural portion, the connecting rod can better adapt to existing design space. The connecting rod is preferably made of metal or polymer material.

[0016] In general, the present invention discloses the following technical solution 1, and the following 2-11 are preferred technical solutions:

[0017] 1. A device (1) for unlocking a vehicle door, the device having an actuating element (2) comprising an actuating portion (27) and a flexibly deployable band portion (28) connected to a Bowden wire (11), wherein the Bowden wire (11) and the actuating element (2) are arranged on a base plate (9) and / or a door, and the actuating element (2) is connected to a rotatably arranged ring rod (5) such that the Bowden wire (11) connected to the ring rod (5) is movable when the ring rod (5) is rotated by the actuating element (2), characterized in that the ring rod (5) comprises a preferably circular ring rod portion (8), the actuating element (2) being partially abutting against the circular ring rod portion.

[0018] 2. The device according to the aforementioned scheme 1, characterized in that the Bowden wire rod (12) arranged rotatably on the base plate (9) and / or the door is connected to the ring rod (5) via a connecting rod (18) such that when the ring rod (5) is rotated by the actuating element (2), the Bowden wire (11) connected to the Bowden wire rod (12) is movable.

[0019] 3. The device according to any one of the aforementioned schemes 1-2, characterized in that the actuating part (27) and the belt part (28) are integrally connected.

[0020] 4. The device according to any one of the aforementioned schemes 1-3, characterized in that the actuating part (27) is configured as an annular or hook-shaped part.

[0021] 5. The device according to any one of the aforementioned schemes 1-4, characterized in that the actuating element (2) is fastened to the first ring rod shaft (6).

[0022] 6. The device according to any one of the aforementioned schemes 1-5, characterized in that a first spring (21) is arranged between the base plate (9) and / or the door and the Bowden rod (12) for retracting the actuating element (2).

[0023] 7. The device according to any one of the aforementioned schemes 1-6 is characterized in that a micro switch (16) is provided, which is actuated by rotating the ring rod (5) or the Bowden rod (12) by a first angle (22) so that the door unlocking is electrically controlled.

[0024] 8. The device according to Scheme 7 is characterized in that, when the ring rod (5) or the Bowden line rod (12) is rotated to a second angle (23) greater than the first angle (22), the door unlocking is performed via the Bowden line (11).

[0025] 9. The device according to any one of the preceding schemes 7 or 8, characterized in that the device includes a second spring (30) disposed on the base plate (9) and / or the door, the second spring having a second cam (29) disposed on the Bowden rod (12) for forming a tactile force threshold between mechanical door unlocking and electric door unlocking.

[0026] 10. The device according to any one of the aforementioned schemes 2 to 9, characterized in that the connecting rod (18) includes at least one bent portion or flexural portion.

[0027] 11. The device according to any one of the aforementioned schemes 2 to 10, characterized in that the connecting rod (18) is made of metal or polymer material. Attached Figure Description

[0028] The invention will be explained in more detail below with reference to several accompanying drawings. The drawings show:

[0029] Figure 1 A perspective view of the device used for unlocking the car door is shown.

[0030] Figure 2 It shows Figure 1 The device from the perspective of the opposite side,

[0031] Figure 3 It shows Figure 1 Rear view of the device

[0032] Figure 4 It shows the way Figure 3 The cross-sectional view of section AA shown is of the device in its non-actuated state.

[0033] Figure 5 It shows the way Figure 3 The cross-sectional view of section AA shown is of the device in the actuated state.

[0034] Figure 6 It shows Figure 1 A perspective view of the device; and

[0035] Figure 7 It shows Figure 1 An exploded perspective view of the device. Detailed Implementation

[0036] Figure 1 A device (1) for unlocking the vehicle door, as seen from the operator's perspective when it is inside the vehicle, is shown. The actuating element (2) of the device (1) for unlocking the door is made of, for example, a polymer material or a textile material. The actuating element (2) is guided through a cover (10) arranged on the base plate (9) and / or the door.

[0037] Figure 2The device is shown from the opposite side and includes an actuating element (2), a base plate (9), a cover (10), a ring rod (5), a connecting rod (18), a Bowden wire rod (12), and a Bowden wire (11). The actuating element (2) is connected to the ring rod (5). The ring rod (5) is arranged on the base plate (9). The connection between the ring rod (5) and the base plate (9) and / or the door is achieved via a first ring rod shaft (6) extending through the ring rod (5). The actuating element (2) is attached to the first ring rod shaft (6). The ring rod (5) preferably has a circular ring rod portion (8), with a band portion (28) partially abutting against this circular ring rod portion. The connecting rod (18) connects the ring rod (5) to the Bowden wire rod (12). The connecting rod (18) is made of metal or polymer material. The connecting rod (18) has a bend or flexure, thereby allowing the connecting rod (18) to adapt to existing design space. The connecting rod (18) is rotatably connected to the second ring rod shaft (7) of the ring rod (5) and the first Bowden rod shaft (13) of the Bowden rod (12). Both shafts (7, 13) are supported by bearing bushings (19, 20) to reduce friction in the joint. The Bowden rod (12) is rotatably supported about the second Bowden rod shaft (14). The second Bowden rod shaft (14) is also supported by bearing bushings (24) to minimize friction. The Bowden line (11) is suspended on the Bowden rod (12). The connecting rod (18) connects the ring rod (5) to the Bowden rod (12) such that when the ring rod (5) rotates, the Bowden line (11) connected to the Bowden rod (12) also moves.

[0038] Figure 3 It shows Figure 1 Rear view of the device. When the device (1) for unlocking the door is actuated, the actuating element (2) is pulled. A spring (21) is arranged between the base plate (9) and / or the door and the ring rod (5) or Bowden rod (12) for retracting the actuating element (2). When the actuating element (2) is pulled, the spring (21) is tensioned and returns the actuating element (2) to its original position after actuation. A micro switch (16) and a micro switch cable (17) for transmitting signals are arranged on the base plate (9). The Bowden rod (12) has a first cam (15) at the top for actuating the micro switch (16).

[0039] Figure 4 It shows the way Figure 3The cross-sectional view of section AA shown is of the device in its non-actuated state. The actuating element (2) is preferably formed of a flat band. The actuating portion (27) is configured for gripping on the first side of the actuating element (2) by means of a preferably sewn first connecting portion (3). On the second side of the actuating element (2), the band portion (28) is configured on the first ring rod shaft (6) by means of a preferably sewn second connecting portion (4). To unlock the door, the actuating element (2) is pulled. Pulling the actuating element (2) causes the ring rod (5) to rotate about the first ring rod shaft (6). As the ring rod (5) rotates, the band portion (28) of the actuating element (2) abuts the circular ring rod portion (8). When rotated about the first angle (22), the micro switch (16) is actuated by the first cam (15) of the Bowden rod (12). When the Bowden line pole (12) rotates to a second angle (23) greater than the first angle (22), the door is mechanically unlocked via the Bowden line (11).

[0040] Figure 5 It shows the way Figure 3 The cross-sectional view of section AA shown is of the device in the actuated state. The ring rod (5) includes a first arm (25), and the Bowden rod (12) includes a second arm (26).

[0041] Figure 6 A perspective view of the second spring (30) and the second cam (29) is shown. The second cam (29) is disposed on the bottom (32) of the Bowden rod and has a cam portion (31) facing away from the bottom (32) of the Bowden rod. The second spring (30) has a U-shaped profile and is disposed on the base plate (9) and / or the door. The closed portion of the second spring (30) is adjacent to the bottom (32) of the Bowden rod. When the ring rod (5) is actuated, the Bowden rod (12) rotates about the second Bowden rod axis (14). The cam portion (31) rotates against the closed portion of the second spring (30). The second spring (30) cooperates with the cam portion (31) such that by applying a greater force, as the Bowden rod (12) rotates about the second Bowden rod axis (14), the second spring (30) slides above the cam portion (31), and the lock is mechanically unlocked upon further rotation. Figure 7 It also shows Figure 1 Exploded perspective view of the various components of the device.

[0042] List of icon symbols

[0043] 1. Device for unlocking car doors

[0044] 2 Actuating elements

[0045] 3 First connecting part

[0046] 4 Second connecting part

[0047] 5 ring rods

[0048] 6 First Ring Shaft

[0049] 7 Second Ring Shaft

[0050] 8. Ring rod section

[0051] 9. Base plate

[0052] 10 lids

[0053] 11 Bowden Line

[0054] 12 Bowden poles

[0055] 13 First Bowden rod shaft

[0056] 14 Second Bowden rod shaft

[0057] 15 First Cam

[0058] 16 Microswitches

[0059] 17. Micro switch cable

[0060] 18 Connecting rods

[0061] 19 First connecting rod bearing bushing

[0062] 20 Second connecting rod bearing bushing

[0063] 21 First Spring

[0064] 22 First Angle

[0065] 23 Second Angle

[0066] 24 Bowden wire bearing bushing

[0067] 25 First lever arm

[0068] 26 Second lever arm

[0069] 27 Actuating Part

[0070] 28 with part

[0071] 29 Second Cam

[0072] 30 Second Spring

[0073] 31 Cam section

[0074] 32 Bowden pole bottom

Claims

1. A device (1) for unlocking a vehicle door, the device having an actuating element (2) comprising an actuating portion (27) and a flexibly deployable belt portion (28) connected to a Bowden wire (11), wherein the Bowden wire (11) and the actuating element (2) are arranged on a base plate (9) and / or a door, and the actuating element (2) is connected to a first ring shaft axis (6) of a rotatably arranged ring rod (5), the ring rod (5) being rotatable about the first ring shaft axis (6) such that when the ring rod (5) rotates via the actuating element (2), the Bowden wire (11) connected to the ring rod (5) is movable, characterized in that, The ring rod (5) includes a circular ring rod portion (8), and the belt portion (28) of the actuating element (2) partially abuts against the circular ring rod portion. The actuating portion (27) and the belt portion (28) are integrally connected, and the actuating element (2) is formed of a flat belt.

2. The apparatus of claim 1, wherein, Bowden wire rod (12) arranged rotatably on the base plate (9) and / or the door is connected to the ring rod (5) via a connecting rod (18) such that the Bowden wire (11) connected to the Bowden wire rod (12) is movable when the ring rod (5) is rotated by the actuating element (2).

3. The apparatus of claim 1 or 2, wherein, The actuating part (27) is configured as a ring or hook shape.

4. The apparatus of claim 1 or 2, wherein, The actuating element (2) is fastened to the first ring shaft (6).

5. The apparatus of claim 2, wherein, A first spring (21) is arranged between the base plate (9) and / or the door and the Bowden rod (12) for retracting the actuating element (2).

6. The apparatus of claim 2, wherein, A micro switch (16) is provided, which is actuated by rotating the ring rod (5) or the Bowden rod (12) by a first angle (22) so that the door unlocking is electrically controlled.

7. The apparatus of claim 6, wherein, When the ring rod (5) or the Bowden line rod (12) rotates to a second angle (23) greater than the first angle (22), the door is unlocked via the Bowden line (11).

8. The apparatus of claim 6 or 7, wherein, The device includes a second spring (30) disposed on the base plate (9) and / or the door, the second spring having a second cam (29) disposed on the Bowden rod (12) for forming a tactile force threshold between mechanical door unlocking and electric door unlocking.

9. The apparatus of claim 2, wherein, The connecting rod (18) includes at least one bent or flexed portion.

10. The apparatus of claim 2, wherein, The connecting rod (18) is made of metal or polymer material.

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