Micro-stroke-unlocked automobile door handle

Abstract

The application discloses a micro-stroke unlocking automobile door handle, which comprises a base, an unlocking handle arranged on the base, an unlocking cavity formed on the unlocking handle for placing hands, an unlocking pull handle and a control rod arranged on the base, and a driving end of the unlocking pull handle arranged in the unlocking cavity; a driving lever is formed on the unlocking pull handle, the control rod comprises a shaft body, a contact arm and a connecting arm formed on the shaft body, the contact arm is arranged on a moving path of the driving lever, an end of the connecting arm is connected with an unlocking pull rope, and the driving lever pushes the contact arm to move and forces the control rod to rotate around the shaft body, so that the connecting arm pulls the unlocking pull rope to unlock.

Description

Technical Field

[0001] This invention relates to the field of automotive door handle technology, and more specifically to automotive door handles with micro-travel unlocking. Background Technology

[0002] Concealed door handles are widely used in modern car designs. They typically include a mounting base fixedly connected to the door sheet metal, a handle fixed to the mounting base, and a pull part extending into the mounting base. This pull part forms a hand cavity for the user's hand to be placed in, and an unlocking handle is rotatably installed in the hand cavity. This unlocking handle is directly connected to an unlocking cord. By pulling the unlocking handle, the user can pull the unlocking cord, thereby triggering the unlocking function of the door lock mechanism.

[0003] However, the door handles in the aforementioned existing technology have a significant drawback: since the linear motion of the unlocking rope depends entirely on the rotational motion of the unlocking handle, in order to provide sufficient rope travel for effective unlocking, the unlocking handle must have a large rotation angle (i.e., excessive rotational travel), which results in excessive internal space occupation. Its large rotational travel requires the unlocking handle to have a wider range of movement trajectory within the hand cavity, and also requires sufficient movement clearance to be reserved around it, which leads to an increase in the overall thickness or volume of the door handle module. At the same time, it occupies valuable layout space inside the door panel, posing challenges to the layout of other components inside the door and increasing the complexity and difficulty of the overall vehicle structural design. Summary of the Invention

[0004] To address the technical problems existing in the background art, the present invention proposes a micro-stroke unlocking car door handle.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows:

[0006] A micro-travel unlocking car door handle includes a base, an unlocking handle is provided on the base, the unlocking handle forms an unlocking cavity for a hand to be inserted, and an unlocking lever and a control rod are rotated on the base, with the driving end of the unlocking lever inserted into the unlocking cavity;

[0007] The unlocking handle has a drive lever. The control lever includes a shaft, a contact arm and a connecting arm formed on the shaft. The contact arm is arranged on the movement path of the drive lever. The end of the connecting arm is connected to an unlocking rope. The drive lever pushes the contact arm to move and forces the control lever to rotate around the shaft so that the connecting arm pulls the unlocking rope to unlock.

[0008] Preferably, the length of the connecting arm is greater than that of the contact arm. Through the above improvements, by lengthening the connecting arm, the lever principle is used to amplify the small rotation of the handle into the large stroke required for pulling the cable.

[0009] Preferably, the unlocking handle includes an unlocking body and a rotating arm formed on the unlocking body. The drive lever is formed on the unlocking body, located away from the rotating arm, and extends towards the X-axis. A rotating shaft is inserted into the base, the rotating arm is mounted on the rotating shaft, and the unlocking body is placed inside the unlocking cavity. Through the above improvements, the drive lever, rotating arm, and rotating shaft are integrated along the X-axis, which greatly optimizes the utilization of structural space. The linear extension in the X-axis direction makes the force transmission path more direct and compact, reduces the space occupation in the Z-axis, makes the handle assembly lighter and thinner, and facilitates efficient arrangement within the door sheet metal, leaving valuable space for other components.

[0010] Preferably, when the unlocking handle is in its initial state, the unlocking body abuts against the top of the unlocking cavity and forms part of the unlocking cavity. With the above improvement, in the initial state, the unlocking body abuts against the unlocking cavity and forms part of the unlocking cavity. When the hand is placed into the unlocking cavity, the curved part of the finger is exactly opposite to the unlocking body, which improves the comfort during the unlocking process and effectively improves the smoothness of pulling and the feel of operation.

[0011] Preferably, a first elastic element is sleeved on the rotating shaft, and an abutment groove is provided on the base. One end of the first elastic element abuts against the rotating arm, and the other end is placed in the abutment groove and abuts against the base. Through the above improvements, the cooperation between the first elastic element and the abutment groove provides a stable and reliable automatic reset force for the unlocking handle. The first elastic element is pre-pressed between the rotating arm and the base to ensure that the handle can return to the initial position accurately and smoothly after operation. At the same time, the structure is compact, effectively avoiding uneven load or jamming during the reset process and improving reliability.

[0012] Preferably, a second elastic element is sleeved on the shaft, with one end of the second elastic element abutting the base and the other end abutting the connecting arm. Through the above improvements, the second elastic element provides an independent reset torque for the control lever, ensuring that it can quickly and reliably return to the initial position after unlocking.

[0013] Preferably, the base is provided with a cover and the base is provided with a lock cylinder. The cover can be rotated to cover or expose the lock cylinder. With the above improvements, the cover can be opened to unlock with a key to meet different usage scenarios.

[0014] Preferably, the base has a guide groove for inserting the drive lever. Through the above improvements, the guide groove provides precise motion trajectory constraints for the drive lever, ensuring that it maintains stable linear movement during rotation. This effectively prevents radial offset and motion interference, significantly improving the smoothness and reliability of the unlocking action, while reducing the risk of component wear and abnormal operating noise.

[0015] Preferably, the base is provided with a rotating seat for mounting the shaft, the two ends of the shaft form rotating protrusions, the rotating seat forms a rotating groove for the rotating protrusions to rotate, the rotating protrusions form an insertion protrusion, and the rotating seat forms an insertion groove for the insertion protrusions to be inserted into. The insertion groove communicates with the rotating groove. Through the above improvements, the plug-in assembly structure of the insertion protrusion and the insertion groove enables the control rod to be quickly and accurately positioned and installed. Furthermore, the cooperation between the rotating protrusion and the rotating groove ensures smooth and stable rotation of the shaft, greatly improving assembly efficiency while effectively preventing axial movement of the shaft and enhancing the overall rigidity and reliability of the control rod.

[0016] Preferably, the unlocking cavity has an arc-shaped guide surface. Through the above improvements, the arc-shaped guide surface naturally guides the finger insertion path, so that the hand contact and force direction are highly consistent with the unlocking movement trajectory, which greatly improves the smoothness of operation, reduces the feeling of movement lag, and optimizes the force distribution, thereby enhancing the smoothness of the unlocking process and the user experience.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] By constructing an unlocking cavity for hand insertion on the unlocking handle, and rotating an unlocking handle and a control rod on the base, the driving end of the unlocking handle is inserted into the unlocking cavity. The unlocking handle has a driving lever, and the control rod includes a shaft, a contact arm and a connecting arm formed on the shaft. The contact arm is set on the movement path of the driving lever, and the end of the connecting arm is connected to the unlocking rope. When mechanical unlocking is required, the driving end of the unlocking handle can be pulled, causing the driving lever on the unlocking handle to push the contact arm to move, and forcing the control rod to rotate around the shaft, so that the connecting arm pulls the unlocking rope to unlock. Through the lever-type linkage mechanism of the driving lever pushing the contact arm, the control rod is triggered to rotate and pull the unlocking rope with a very small stroke to complete the unlocking, which greatly optimizes the internal structure of the handle, making it compact and space-saving. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the base and unlocking handle of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the unlocking handle, control lever, and unlocking lever of the present invention.

[0022] Figure 4 This is a schematic diagram of the unlocking handle of the present invention;

[0023] Figure 5 This is a schematic diagram of the control lever of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the unlocking handle and the control lever of the present invention.

[0025] Figure 7 This is a schematic diagram of the rotating seat of the present invention;

[0026] Figure 8 This is a cross-sectional view of the overall structure of the present invention;

[0027] In the diagram: 1. Base; 2. Unlocking handle; 3. Unlocking cavity; 4. Unlocking lever; 5. Control lever; 1.1. Drive lever; 1.2. Shaft; 1.3. Contact arm; 1.4. Connecting arm; 1.5. Unlocking pull rope; 2.1. Unlocking body; 2.2. Rotating arm; 2.3. First elastic element; 2.4. Second elastic element; 2.5. Abutment groove; 2.6. Guide groove; 2.7. Rotating shaft; 3.1. Rotating seat; 3.2. Rotating protrusion; 3.3. Rotating groove; 3.4. Insertion protrusion; 3.5. Insertion groove; 3.6. Arc-shaped guide surface; 3.7. Abutment protrusion; 4.2. Sealing ring; 4.3. Lock cylinder; 4.4. Cover; 4.5. Connecting slot. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0030] like Figure 1-8 As shown, the micro-stroke unlocking car door handle includes a base 1, an unlocking handle 2 is provided on the base 1, the unlocking handle 2 forms an unlocking cavity 3 for the hand to be inserted, and an unlocking lever 4 and a control rod 5 are rotated on the base 1, with the driving end of the unlocking lever 4 inserted into the unlocking cavity 3.

[0031] Specifically, the unlocking handle 4 has a drive lever 1.1, and the control lever 5 includes a shaft 1.2, a contact arm 1.3 and a connecting arm 1.4 formed on the shaft 1.2. The contact arm 1.3 is arranged on the moving path of the drive lever 1.1, and the end of the connecting arm 1.4 is connected to the unlocking pull rope 1.5. The drive lever 1.1 pushes the contact arm 1.3 to move and forces the control lever 5 to rotate around the shaft 1.2 so that the connecting arm 1.4 pulls the unlocking pull rope 1.5 to unlock.

[0032] When mechanical unlocking is required, the hand can be placed into the unlocking cavity 3 and the drive end of the unlocking handle 4 can be pulled. This will cause the drive lever 1.1 on the unlocking handle 4 to push the contact arm 1.3 to move, and force the control lever 5 to rotate around the shaft 1.2. This will cause the connecting arm 1.4 to pull the unlocking rope 1.5 to unlock. Through the lever-type linkage mechanism of the drive lever 1.1 pushing the contact arm 1.3, the control lever 5 is triggered to rotate and the unlocking rope 1.5 is pulled with a very small stroke to complete the unlocking. This greatly optimizes the internal structure of the handle, making it compact and space-saving.

[0033] The drive lever 1.1 is positioned away from the rotation center of the unlocking handle 4, effectively increasing the lever arm. Therefore, when the unlocking body 2.1 rotates slightly, the displacement stroke of the drive lever 1.1 is increased to achieve the first motion amplification. Subsequently, the drive lever 1.1 pushes the contact arm 1.3 of the control lever 5 to complete the second lever action, ultimately pulling the unlocking rope 1.5 in a labor-saving and reliable manner. This ensures that even a small input can produce a sufficiently large output stroke, with precise and reliable action. The entire mechanism highly integrates the drive, transmission, and execution components in a compact space, resulting in a compact structure, high reliability, and effective reduction of assembly complexity and production costs, demonstrating outstanding practical value.

[0034] In addition, the length of the connecting arm 1.4 is greater than that of the contact arm 1.3. By lengthening the connecting arm 1.4, a second lever action is completed, and the lever principle is used to amplify the small rotation of the handle into the large stroke required for pulling the cable.

[0035] Preferably, the unlocking cavity 3 has an arc-shaped guide surface 3.6, which naturally guides the finger insertion path, so that the hand contact and force direction are highly consistent with the unlocking movement trajectory, greatly improving the smoothness of operation, reducing the feeling of movement lag, and optimizing the force distribution, thereby enhancing the smoothness of the unlocking process and the user experience.

[0036] like Figures 1 to 4As shown, as a further explanation of the implementation of the unlocking handle 4, the unlocking handle 4 includes an unlocking body 2.1 and a rotating arm 2.2 formed on the unlocking body 2.1. A drive lever 1.1 is formed on the unlocking body 2.1 and is set away from the rotating arm 2.2 and extends towards the X-axis direction. A rotating shaft 2.7 is inserted into the base 1, and the rotating arm 2.2 is rotatably mounted on the rotating shaft 2.7. The unlocking body 2.1 is placed in the unlocking cavity 3. The drive lever 1.1, the rotating arm 2.2 and the rotating shaft 2.7 are integrated and laid out along the X-axis direction, which greatly optimizes the utilization of structural space. The linear extension in the X-axis direction makes the force transmission path more direct and compact, reduces the space occupation in the Z direction, makes the handle assembly lighter and thinner, and facilitates efficient arrangement in the door sheet metal, leaving valuable space for other components.

[0037] In addition, when the unlocking handle 4 is in the initial state, the unlocking body 2.1 abuts against the top of the unlocking cavity 3 and forms part of the unlocking cavity 3.

[0038] Since the unlocking body 2.1 abuts against the unlocking cavity 3 in the initial state and forms part of the unlocking cavity 3, when the hand is placed into the unlocking cavity 3, the bent part of the finger is set opposite to the unlocking body 2.1, which improves the comfort during the unlocking process and effectively improves the smoothness of pulling and the feel of operation.

[0039] Furthermore, a first elastic element 2.3 is sleeved on the rotating shaft 2.7, and an abutment groove is provided on the base 1. One end of the first elastic element 2.3 abuts against the rotating arm 2.2, and the other end is placed in the abutment groove and abuts against the base 1. Through the cooperation of the first elastic element 2.3 and the abutment groove, a stable and reliable automatic reset force is provided for the unlocking handle 4. The first elastic element 2.3 is pre-pressed between the rotating arm 2.2 and the base 1 to ensure that the handle can return to the initial position accurately and smoothly after operation. At the same time, the structure is compact, effectively avoiding uneven load or jamming during the reset process and improving reliability.

[0040] Preferably, the base 1 has a guide groove 2.6 for inserting the drive lever 1.1. The guide groove 2.6 provides precise motion trajectory constraints for the drive lever 1.1, so that it always maintains stable linear movement during rotation, effectively preventing radial offset and motion interference, greatly improving the smoothness and reliability of the unlocking action, while reducing the risk of component wear and abnormal operation noise.

[0041] like Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, to further explain the implementation of the control lever 5, the base 1 is provided with a rotating seat 3.1 for mounting the shaft 1.2. The two ends of the shaft 1.2 form rotating protrusions 3.2. The rotating seat 3.1 is provided with a rotating groove 3.3 for the rotating protrusions 3.2 to rotate. The rotating protrusions 3.2 form an insertion protrusion 3.4, and the rotating seat 3.1 is provided with an insertion groove 3.5 for the insertion protrusions 3.4 to be inserted. The insertion groove 3.5 is connected to the rotating groove 3.3. Through the plug-in assembly structure of the insertion protrusions 3.4 and the insertion groove 3.5, the control lever 5 can be quickly and accurately positioned and installed. The cooperation between the rotating protrusions 3.2 and the rotating groove 3.3 ensures that the shaft 1.2 rotates smoothly and stably, which greatly improves the assembly efficiency and effectively prevents the axial movement of the shaft 1.2, thereby enhancing the overall rigidity and reliability of the control lever 5.

[0042] During installation, the rotating protrusion 3.2 is inserted into the rotating groove 3.3 by first engaging the insertion protrusion 3.4 with the insertion groove 3.5, thereby enabling the rapid installation of the shaft 1.2.

[0043] The groove 3.5 forms a guide slope, thereby increasing the smoothness of the insertion process of the protrusion 3.4.

[0044] Furthermore, the two ends of the shaft 1.2 form abutment protrusions 3.7, which abut against the groove wall of the rotating groove 3.3, thereby further improving the stability of the shaft 1.2 installation.

[0045] In addition, a second elastic element 2.4 is sleeved on the shaft 1.2. One end of the second elastic element 2.4 abuts against the base 1 and the other end abuts against the connecting arm 1.4. The second elastic element 2.4 provides an independent reset torque for the control lever 5, ensuring that it can quickly and reliably return to the initial position after unlocking.

[0046] Preferably, the connecting arm 1.4 is provided with a connecting slot 4.5 for engaging the unlocking pull rope 1.5 in the direction opposite to the shaft body, thereby increasing the reliability of the connection with the unlocking pull rope 1.5.

[0047] Furthermore, a sealing ring 4.2 is provided on the base 1, and the sealing ring 4.2 abuts against the door sheet metal to ensure the sealing between the base 1 and the door.

[0048] Preferably, a cover 4.4 is provided on the base 1, and a lock cylinder 4.3 is provided on the base 1. The cover 4.4 can be rotated to cover or expose the lock cylinder 4.3, thereby meeting the needs of different usage scenarios.

[0049] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A micro-travel unlocking car door handle, including a base (1), characterized in that, The base (1) is provided with an unlocking handle (2), the unlocking handle (2) forms an unlocking cavity (3) for the hand to be inserted, and the base (1) is provided with an unlocking lever (4) and a control rod (5), the driving end of the unlocking lever (4) is inserted into the unlocking cavity (3); The unlocking handle (4) is equipped with a drive lever (1.1). The control lever (5) includes a shaft (1.2), a contact arm (1.3) and a connecting arm (1.4) formed on the shaft (1.2). The contact arm (1.3) is arranged on the moving path of the drive lever (1.1). The end of the connecting arm (1.4) is connected to the unlocking pull rope (1.5). The drive lever (1.1) pushes the contact arm (1.3) to move and forces the control lever (5) to rotate around the shaft (1.2) so that the connecting arm (1.4) pulls the unlocking pull rope (1.5) to unlock. The drive lever (1.1) is located away from the rotation center of the unlocking handle (4), and the length of the connecting arm (1.4) is greater than that of the contact arm (1.3).

2. The micro-stroke unlocking car door handle according to claim 1, characterized in that: The unlocking handle (4) includes an unlocking body (2.1) and a rotating arm (2.2) formed on the unlocking body (2.1). The drive lever (1.1) is formed on the unlocking body (2.1) and is located away from the rotating arm (2.2) and extends toward the X-axis. A rotating shaft (2.7) is inserted into the base (1). The rotating arm (2.2) is rotatably mounted on the rotating shaft (2.7). The unlocking body (2.1) is placed in the unlocking cavity (3).

3. The micro-stroke unlocking car door handle according to claim 2, characterized in that: When the unlocking handle (4) is in the initial state, the unlocking body (2.1) abuts against the top of the unlocking cavity (3) and forms part of the unlocking cavity (3).

4. The micro-stroke unlocking car door handle according to claim 2, characterized in that: The first elastic element (2.3) is sleeved on the rotating shaft (2.7), and the base (1) is provided with an abutment groove (2.5). One end of the first elastic element (2.3) abuts against the rotating arm (2.2), and the other end is placed in the abutment groove (2.5) and abuts against the base (1).

5. The micro-stroke unlocking car door handle according to claim 1, characterized in that: A second elastic element (2.4) is sleeved on the shaft (1.2). One end of the second elastic element (2.4) abuts against the base (1) and the other end abuts against the connecting arm (1.4).

6. The micro-stroke unlocking car door handle according to claim 1, characterized in that: The base (1) is provided with a cover (4.4) and the base (1) is provided with a lock cylinder (4.3). The cover (4.4) rotates to cover or expose the lock cylinder (4.3).

7. The micro-stroke unlocking car door handle according to claim 1, characterized in that: The base (1) has a guide groove (2.6) for inserting the drive lever (1.1).

8. The micro-stroke unlocking car door handle according to claim 1, characterized in that: The base (1) is provided with a rotating seat (3.1) for mounting the shaft (1.2). The two ends of the shaft (1.2) form rotating protrusions (3.2). The rotating seat (3.1) forms a rotating groove (3.3) for the rotating protrusions (3.2) to rotate. The rotating protrusions (3.2) form an insertion protrusion (3.4). The rotating seat (3.1) forms an insertion groove (3.5) for the insertion protrusions (3.4) to be inserted. The insertion groove (3.5) is connected to the rotating groove (3.3).

9. The micro-stroke unlocking car door handle according to claim 1, characterized in that: The unlocking cavity (3) contains an arc-shaped guide surface (3.6).

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