A concealed door handle

Abstract

The application provides a hidden car door outer handle and belongs to the technical field of car parts, which comprises a handle, a base part at one end of the handle, a shell provided with a side opening, the handle being telescopically installed in the shell, the handle covering the side opening when being in a retracted position and the handle extending out of the side opening when being in an extended position, a rotatable cam being arranged in the shell, a rocker arm being hingedly connected to the shell at one end and to the base part at the other end, the rocker arm being provided with a bevel part, and the cam being in contact with the bevel part, the cam being driven to rotate and pushing the rocker arm to rotate around the hinged shaft of the shell so as to push the handle to extend when the cam is driven to rotate, the handle being simple and practical in structure, reasonable and ingenious, and provided with fewer parts, the door opening mechanism being more direct and simple, the handle having a small rotating angle when being opened, and the door being very convenient to open.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology and relates to a concealed exterior door handle. Background Technology

[0002] Exterior door handles are very important to the overall appearance of a vehicle, and vehicle door handles are evolving from exposed types to concealed types that extend automatically.

[0003] Currently, there are some concealed exterior door handles. For example, there is an invention patent with application number CN201710919563.4 entitled "A Concealed Car Exterior Door Handle". This type of exterior door handle has a four-sided closed ring structure, so the structure is relatively complex. In addition, there is a utility model patent with application number CN202220797113.9 entitled "A Car Exterior Door Handle". This type of exterior door handle has a simpler structure, but the rotation angle of the handle when automatically opening or unlocking is too large, making it inconvenient to open the door, and the handle is not aesthetically pleasing when open. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a concealed exterior door handle.

[0005] The objective of this invention can be achieved through the following technical solution: a concealed exterior door handle, comprising:

[0006] A handle, one end of which has a base portion;

[0007] A housing having a side opening, a handle retractably mounted on the housing, the handle covering the side opening when in the retracted position and extending out of the side opening when in the extended position, and a rotatable cam provided inside the housing;

[0008] A rocker arm, one end of which is hinged to the housing and the other end of which is hinged to the base, the rocker arm having an inclined surface, and a cam abutting against the inclined surface; when the cam rotates actively, it pushes the rocker arm to rotate with its hinge axis with the housing as the fulcrum through the inclined surface, thereby pushing the handle to extend.

[0009] Preferably, it also includes a cable, and a flexible tube is provided inside the housing. One end of the flexible tube is connected to the housing and the other end is connected to the rocker arm. A portion of the cable passes through the flexible tube, and the end of the cable extends out of the flexible tube and is engaged with the base portion. When the handle is pulled open, it rotates relative to the rocker arm with the hinge axis between the base portion and the rocker arm as the fulcrum and pulls the cable.

[0010] Preferably, the rocker arm has an L-shaped end, the end of which is hinged to the base portion.

[0011] Preferably, the hinge axis between the L-shaped end and the base portion is located on the front side of the base portion, and the engagement point between the cable and the base portion is located on the rear side of the base portion.

[0012] Preferably, the cam has an arc-shaped protrusion on its circumferential surface, which abuts against the inclined surface; as the cam pushes the handle to extend, the contact point between the arc-shaped protrusion and the inclined surface gradually shifts from the root of the arc-shaped protrusion to the top, thereby pushing the rocker arm to rotate.

[0013] Preferably, when the handle is in the retracted position, pressing one end of the handle can cause the other end of the handle to rotate.

[0014] Preferably, a limiting block is provided inside the housing, and when the handle is in the unfolded position, the rocker arm abuts against the limiting block.

[0015] Preferably, a motor is provided on the outer wall of the housing, and the motor shaft is connected to the cam.

[0016] Preferably, a first torsion spring is provided on the hinge axis between the rocker arm and the housing. One end of the first torsion spring is in contact with the housing and the other end is in contact with the rocker arm. When the handle is extended, the first torsion spring deforms and stores force.

[0017] Preferably, a second torsion spring is provided on the hinge shaft between the rocker arm and the base portion. One end of the second torsion spring is in contact with the housing and the other end is in contact with the base portion. When the handle is opened, the second torsion spring deforms and stores force.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This handle has a simple and practical structure, which is very reasonable and ingenious. It uses fewer parts and the opening mechanism is more direct and simple. The handle has a small rotation angle when it is opened, making it very convenient to open the door.

[0020] 2. The cable can be pulled out of the hose. One end of the cable is connected to the door opening mechanism, and the other end is engaged with the base. The hose can move with the rocker arm. When the handle rotates with the hinge axis between itself and the rocker arm as the fulcrum, it can pull the cable, thereby opening or unlocking the car door. This door opening mechanism is simpler and more effective, and less prone to failure.

[0021] 3. The L-shaped end allows for better extension of the handle. Specifically, the rocker arm only needs to rotate a small angle to push the handle to extend to a greater displacement through the L-shaped end.

[0022] 4. In order to allow the handle to pull the cable to a greater extent with a smaller rotation angle, the hinge shaft between the L-shaped end and the base is specially designed to be on the front side of the base, and the locking point between the cable and the base is arranged on the rear side of the base. This makes the hinge shaft and the locking point at both ends of the base, thereby maximizing the distance between them. So when the handle rotates with the hinge shaft, only a small rotation angle is needed to make the locking point produce a larger displacement, thereby fully pulling the cable.

[0023] 5. The handle has a manual unlocking and opening function. Because the cam contacts the curved protrusion and the inclined surface, the cam rotates to push the rocker arm, thereby extending the handle. Therefore, the two are not linked, so the handle can be extended or rotated independently, avoiding the inability to operate the handle independently when the power is off. Attached Figure Description

[0024] Figure 1 This is an exploded view of the structure of the concealed exterior door handle of the present invention.

[0025] Figure 2A This is a schematic diagram of the handle of the present invention in the retracted position.

[0026] Figure 2B This is a schematic diagram of the handle of the present invention in the unfolded position.

[0027] Figure 2C This is a schematic diagram of the handle of the present invention when opening a door.

[0028] Figure 3 This is a schematic diagram of the structure of the concealed exterior door handle of the present invention in the retracted state.

[0029] Figure 4 This is a schematic diagram of the structure of the concealed exterior door handle of the present invention in the extended state.

[0030] Figure 5 This is a schematic diagram of the concealed exterior door handle of the present invention when the door is opened and unlocked.

[0031] Figure 6 This is a half-sectional schematic diagram of the handle of the present invention.

[0032] In the diagram, 100 is the handle; 110 is the base; 200 is the housing; 210 is the side opening; 220 is the hose; 230 is the cable; 240 is the limiting block; 300 is the cam; 310 is the arc-shaped protrusion; 400 is the rocker arm; 410 is the beveled part; 420 is the L-shaped end; 500 is the motor; 600 is the first torsion spring; and 700 is the second torsion spring. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0034] like Figure 1-6 As shown, a concealed exterior door handle includes: a handle 100, a housing 200, and a rocker arm 400. One end of the handle 100 has a base portion 110. The housing 200 is provided with a side opening 210. The handle 100 is retractably mounted on the housing 200. When the handle 100 is in the retracted position, it covers the side opening 210. When the handle 100 is in the extended position, it extends out of the side opening 210. A rotatable cam 300 is provided inside the housing 200. One end of the rocker arm 400 is hinged to the housing 200 and the other end is hinged to the base portion 110. The rocker arm 400 has a beveled portion 410. The cam 300 is in contact with the beveled portion 410. When the cam 300 rotates actively, it pushes the rocker arm 400 to rotate around its hinge axis with the housing 200 as the fulcrum, thereby pushing the handle 100 to extend.

[0035] The other end of the handle 100 is a free end. When the door is opened, the other end of the handle 100 can rotate around the base 110. In the normal state, the handle 100 is retracted into the housing 200 and covers the side opening 210. At this time, the handle 100 is in the retracted position. When the door needs to be opened, the handle 100 extends out from the side opening 210. When the handle 100 is fully extended, its position is the unfolded position.

[0036] Because the cam 300 contacts the inclined surface 410 of the rocker arm 400, the rotation of the cam 300 can push the rocker arm 400 to rotate through the inclined surface 410. One end of the rocker arm 400 is hinged to the housing 200 and the other end is hinged to the base 110. When the rocker arm 400 rotates, it can push the handle 100 to extend outward. This structure of the cam 300 and rocker arm 400 requires very few parts to achieve the automatic extension of the handle 100. After extension, the handle 100 can rotate around its hinge axis with the rocker arm 400, thereby opening the door at a small angle.

[0037] The handle 100 has a simple and practical structure, which is very reasonable and ingenious. It uses fewer parts and the opening mechanism is more direct and simple. The handle 100 has a small rotation angle when opened, making it very convenient to open the door.

[0038] like Figure 1 , Figure 3-6As shown, based on the above embodiments, a concealed car door external handle also includes a pull cable 230. A flexible hose 220 is provided inside the housing 200. One end of the flexible hose 220 is connected to the housing 200 and the other end is connected to the rocker arm 400. A portion of the pull cable 230 passes through the flexible hose 220, and the end of the pull cable 230 extends out of the flexible hose 220 and is engaged with the base portion 110. When the handle 100 is pulled open, it rotates relative to the rocker arm 400 with the hinge axis of the base portion 110 and the rocker arm 400 as the fulcrum and pulls the pull cable 230.

[0039] A portion of the cable 230 is installed inside the hose 220, and the cable 230 can be pulled out and pulled inside the hose 220. One end of the cable 230 is connected to the door opening actuator, and the other end is engaged with the base part 110. The hose 220 can move with the rocker arm 400. When the handle 100 rotates with its hinge axis with the rocker arm 400 as the fulcrum, it can pull the cable 230, thereby opening or unlocking the door. This door opening mechanism is simpler and more effective, and less prone to failure.

[0040] Based on the above embodiment, the rocker arm 400 has an L-shaped end 420, the end of which is hinged to the base portion 110. The end of the rocker arm 400 connected to the base portion 110 is the L-shaped end 420. The L-shaped end 420 can better push the handle 100 to extend. Specifically, the rocker arm 400 only needs to rotate a small angle to push the handle 100 to extend to a greater displacement through the L-shaped end 420.

[0041] Based on the above embodiment, the hinge axis between the L-shaped end 420 and the base portion 110 is located on the front side of the base portion 110, and the snap-fit ​​point between the cable 230 and the base portion 110 is located on the rear side of the base portion 110.

[0042] In this embodiment, the hinge axis position between the L-shaped end 420 and the base portion 110 and the engagement point position between the cable 230 and the base portion 110 are very important. Since the handle 100 rotates around the hinge axis between the L-shaped end 420 and the base portion 110, in order to allow the handle 100 to pull the cable 230 to a greater extent with a smaller rotation angle, the hinge axis between the L-shaped end 420 and the base portion 110 is designed to be on the front side of the base portion 110, and the engagement point between the cable 230 and the base portion 110 is arranged on the rear side of the base portion 110. This makes the hinge axis and the engagement point located at both ends of the base portion 110, thereby maximizing the distance between them. Therefore, when the handle 100 rotates around the hinge axis, only a small rotation angle is needed to make the engagement point produce a larger displacement, thereby fully pulling the cable 230.

[0043] like Figure 1 , Figure 3-5As shown, based on the above embodiment, the cam 300 has an arc-shaped protrusion 310 on its circumferential surface, and the arc-shaped protrusion 310 is in contact with the inclined surface 410. During the process of the cam 300 pushing the handle 100 to extend, the contact point between the arc-shaped protrusion 310 and the inclined surface 410 gradually moves from the root of the arc-shaped protrusion 310 to the top, thereby pushing the rocker arm 400 to rotate.

[0044] The contact between the arc-shaped protrusion 310 and the inclined surface 410 is an arc surface, which can better drive the rocker arm 400 to rotate. It should also be noted that when the handle 100 is in the retracted position, the root of the arc-shaped protrusion 310 contacts the inclined surface 410, and when the handle 100 is in the extended position, the top of the arc-shaped protrusion 310 contacts the inclined surface 410, thereby driving the rocker arm 400 to rotate.

[0045] Based on the above implementation method, when the handle 100 is in the retracted position, pressing one end of the handle 100 can cause the other end of the handle 100 to rotate.

[0046] In the event of a power outage or malfunction, the handle 100 has a manual unlocking and opening function. When opening manually, press one end of the handle 100 to cause the other end of the handle 100 to unfold outward. Then, you can easily grasp the handle 100 and pull it to unlock the door. This structure makes manual door opening operation more convenient.

[0047] Because the cam 300 contacts the inclined surface 410 through the arc-shaped protrusion 310, the cam 300 pushes the rocker arm 400 to extend the handle 100 by rotating. Therefore, the two are not linked. Thus, the handle 100 can be extended or rotated independently, avoiding the inability to operate the handle 100 independently when the power is off.

[0048] like Figure 3-5 As shown, based on the above embodiment, a limiting block 240 is provided inside the housing 200. When the handle 100 is in the unfolded position, the rocker arm 400 abuts against the limiting block 240. The limiting block 240 is used to limit the maximum swing stroke of the rocker arm 400.

[0049] like Figure 1 , Figure 3-5 As shown, based on the above embodiment, a motor 500 is provided on the outer wall of the housing 200, and the rotating shaft of the motor 500 is connected to the cam 300. Under normal circumstances, the handle 100 is automatically unfolded by the motor 500. Specifically, the motor 500 can drive the cam 300 to rotate, thereby causing the handle 100 to unfold automatically via the rocker arm 400.

[0050] like Figure 1 , Figure 3As shown, based on the above embodiment, a first torsion spring 600 is provided on the hinge shaft between the rocker arm 400 and the housing 200. One end of the first torsion spring 600 is in contact with the housing 200 and the other end is in contact with the rocker arm 400. When the handle 100 is extended, the first torsion spring 600 deforms and stores force.

[0051] In this embodiment, since the cam 300 and the rocker arm 400 are only in contact, the cam 300 can only push the handle 100 to unfold. The retraction and reset of the handle 100 needs to be achieved by the first torsion spring 600. When the handle 100 retracts, the motor 500 drives the cam 300 to reset. After losing the support of the cam 300, the rocker arm 400 rotates in the opposite direction under the action of the first torsion spring 600, thereby driving the handle 100 to retract and reset.

[0052] like Figure 1 , Figure 3 As shown, based on the above embodiment, a second torsion spring 700 is provided at the hinge shaft between the rocker arm 400 and the base portion 110. One end of the second torsion spring 700 is in contact with the housing 200 and the other end is in contact with the base portion 110. When the handle 100 is opened, the second torsion spring 700 deforms and stores force. In this embodiment, after the handle 100 is pulled open, it returns to its original position via the second torsion spring 700.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0054] Furthermore, in this invention, descriptions involving "first," "second," "a," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, unless otherwise explicitly limited.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A concealed exterior door handle, characterized in that, include: A handle (100), one end of which has a base portion (110); A housing (200) having a side opening (210), a handle (100) being retractably mounted on the housing (200), the handle (100) covering the side opening (210) when in the retracted position, and extending out of the side opening (210) when in the extended position, and a rotatable cam (300) being provided inside the housing (200); A rocker arm (400) is hinged at one end to the housing (200) and at the other end to the base (110). The rocker arm (400) has a beveled portion (410), and a cam (300) is in contact with the beveled portion (410). When the cam (300) rotates actively, it pushes the rocker arm (400) through the beveled portion (410) to rotate with its hinge axis with the housing (200) as the fulcrum, thereby pushing the handle (100) to extend. It also includes a cable (230), and a hose (220) is provided inside the housing (200). One end of the hose (220) is connected to the housing (200) and the other end is connected to the rocker arm (400). A portion of the cable (230) passes through the hose (220), and the end of the cable (230) extends out from the hose (220) and is engaged with the base (110). When the handle (100) is pulled open, it rotates relative to the rocker arm (400) with the hinge axis between the base (110) and the rocker arm (400) as the fulcrum and pulls the cable (230). The rocker arm (400) is configured as a V-shaped long strip plate structure, and the inclined part (410) is a continuous smooth surface of the rocker arm (400). The inclined part (410) faces the wall surface inside the housing (200) directly opposite the side opening (210). The rocker arm (400) has an L-shaped end (420), the end of which is hinged to the base portion (110); The hinge axis between the L-shaped end (420) and the base portion (110) is located on the front side of the base portion (110), and the engagement point between the cable (230) and the base portion (110) is located on the rear side of the base portion (110).

2. A concealed exterior door handle as described in claim 1, characterized in that: The cam (300) has an arc-shaped protrusion (310) on its circumferential surface, which abuts against the inclined surface (410). As the cam (300) pushes the handle (100) to extend, the contact point between the arc-shaped protrusion (310) and the inclined surface (410) gradually moves from the root of the arc-shaped protrusion (310) to the top, thereby pushing the rocker arm (400) to rotate.

3. A concealed exterior door handle as described in claim 1, characterized in that: When the handle (100) is in the retracted position, pressing one end of the handle (100) will cause the other end of the handle (100) to rotate.

4. A concealed exterior door handle as described in claim 1, characterized in that: A limiting block (240) is provided inside the housing (200), and when the handle (100) is in the unfolded position, the rocker arm (400) abuts against the limiting block (240).

5. A concealed exterior door handle as described in claim 1 or 2, characterized in that: The outer wall of the housing (200) is provided with a motor (500), and the rotating shaft of the motor (500) is connected to the cam (300).

6. A concealed exterior door handle as described in claim 1, characterized in that: A first torsion spring (600) is provided on the hinge shaft between the rocker arm (400) and the housing (200). One end of the first torsion spring (600) is in contact with the housing (200) and the other end is in contact with the rocker arm (400). When the handle (100) is extended, the first torsion spring (600) deforms and stores force.

7. A concealed exterior door handle as described in claim 1, characterized in that: A second torsion spring (700) is provided on the hinge shaft between the rocker arm (400) and the base part (110). One end of the second torsion spring (700) is in contact with the housing (200) and the other end is in contact with the base part (110). When the handle (100) is opened, the second torsion spring (700) deforms and stores force.

Images