Column-B-free side-by-side door capable of being opened disorderly

Abstract

The invention discloses a column-B-free side-by-side door capable of being opened disorderly, which comprises a driving arm and a driver for providing an actuating force for the driving arm so as to open and close a vehicle door relative to a vehicle body; the locking mechanism is arranged between the driving arm and the vehicle door and has an unlocking state and a locking state, and a transition stroke is defined by the track, between the unlocking state and the locking state, of the door driving side; the track guide assembly comprises a track guide groove and a track guide wheel, the locking mechanism is in an unlocking state, the track guide wheel is located in a guide section of the track guide groove, and the vehicle door moves along a preset obstacle avoidance track under the driving of the driving arm and the constraint of the track guide assembly; when the vehicle door moves from the closed position to the barrier-free posture, the locking mechanism is automatically switched to the locking state, so that the driving arm and the vehicle door keep synchronous action, the free end of the vehicle door is opened disorderly along the preset path under the action of the actuating force of the driver, and smooth operation without B column interference is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a B-pillar-free double-door that can be opened out of order. BACKGROUND

[0002] At present, with the continuous development and change of the automobile industry, users' requirements for automobile configuration, space and quality are continuously improved, and B-pillar-free body design has gradually become an important innovation direction in the automobile industry. The B-pillar-free double-door technology emerges as the times require. It not only provides a larger import and export space, enabling passengers to get on and off the vehicle more comfortably, but also eliminates the obstruction of the B-pillar, providing passengers with a more transparent view.

[0003] However, under the premise of canceling the B-pillar, the front and rear double-doors need to be pressed against each other, usually with the front door pressed against the rear door, which will result in the need to first open the front door to open the rear door when opening the double-door, and the operation has a large limitation.

[0004] In order to solve the problem of the order of opening the B-pillar-free double-door, the existing technology discloses a kind of automobile swing door assembly and its automobile with publication number CN116587817B. It sets swing door assemblies on the upper and lower sides of the door, and uses driving equipment and electric telescopic rods to perform out-of-order opening of the double-door. Specifically, when the lower swing door assembly and the upper swing door assembly are connected, the driving equipment drives the first connecting arm to rotate. Since the first connecting arm, the fourth mounting seat, the third connecting arm, the second connecting arm, and the first mounting seat and the second mounting seat form a rack, when the first connecting arm rotates, it will drive the door to swing. At the same time, the electric telescopic rod on the third mounting seat also starts to extend synchronously, driving the door to swing more stably.

[0005] It can be seen that the swing door assembly of the B-pillar-free double-door in the prior art needs to be configured with multiple connecting rods on the upper and lower sides of the door, and at least two power drives are needed to ensure the stable opening of the door. There are problems of difficult space arrangement and assembly. Although it solves the problem of setting guide rails on the vehicle body to some extent, it is difficult to achieve efficient layout within the limited thickness of the door. The complex connecting rod mechanism and actuator require sufficient installation space, which is contrary to the design trend of lightweight and compactness of automobiles. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the present application is to provide a B-pillar-free double-door that can be opened out of order.

[0007] The above technical purpose of the present application is achieved by the following technical scheme: a B-pillar-free double-door that can be opened out of order, comprising: a driving arm rotatably connected between the door and the vehicle body, one end of the driving arm being connected to the door to form a door driving side, and the door having a free end away from the one end of the driving arm; a driver providing an actuating force to the driving arm to open and close the door relative to the vehicle body; a locking mechanism arranged between the driving arm and the door, having an unlocked state allowing the door driving side to swing, and a locked state preventing the door driving side from swinging to keep the driving arm and the door moving synchronously, and a transition stroke between the unlocked state and the locked state being defined by a trajectory of the door driving side; a trajectory guiding assembly including a trajectory guide groove arranged on the vehicle body and a trajectory guide wheel arranged on the free end of the door, the trajectory guide groove having a guiding section and a releasing section, the guiding section defining an obstacle-avoiding trajectory; wherein, in an initial opening stage and a final closing stage of the door, the initial opening stage defining an opening transition stroke and the final closing stage defining a closing transition stroke, the locking mechanism is in the unlocked state, the trajectory guide wheel is in the guiding section of the trajectory guide groove, and the door moves along a preset obstacle-avoiding trajectory under the driving of the driving arm and the constraint of the trajectory guiding assembly; when the door moves from the closed position to the obstacle-free posture, the locking mechanism automatically switches to the locked state, so that the driving arm and the door keep synchronous movement and prevent the door driving side from swinging; at the same time, the trajectory guide wheel leaves the guiding section and enters the releasing section, and the free end of the door opens disorderly along a preset path under the actuating force of the driver, realizing smooth operation without B-pillar interference.

[0008] when the door moves from the open position to the obstacle-free posture, the locking mechanism automatically switches to the unlocked state, so that the driving arm and the door are unlocked and perform relative rotation under the action of the driving arm and the trajectory guiding assembly, at the same time, the trajectory guide wheel enters the guiding section from the releasing section, and the free end of the door closes disorderly along a preset path under the actuating force of the driver, realizing smooth operation without B-pillar interference.

[0009] Further, the guiding section is arranged to extend in the vehicle width direction, and the guiding section has a directional component of guiding the trajectory guide wheel in the outward direction of the vehicle width direction, and a directional component in the direction away from the other door, and the releasing section is an opening or a straight groove allowing the trajectory guide wheel to escape from the constraint, ensuring that when the door is initially opened, the free end thereof can perform a composite motion of moving outward and backward away from the other door synchronously, thereby efficiently and stably avoiding the adjacent door along an optimal path.

[0010] Further, the locking mechanism includes a lever rotatably arranged on the driving arm, a lock rod, and a door extension arranged on the door driving side of the door and close to the rotation center of the door driving part; The lever is engaged with the door extension, the lock rod has a tendency to rotate towards the lever, and the door extension actuates the lever in the opening transition stroke, the lock rod is released with the rotation of the lever, and is stopped in the movement track of the locking part at the end of the lever, and the relative position of the lock mechanism and the door extension is maintained to control the door driving part in the locked state, and the lock mechanism is driven by the door opening operation itself to realize automatic switching from unlocking to locking, which is simple in structure and decisive in action.

[0011] Further, the trajectory guide assembly is arranged on the upper and lower sides of the vehicle door and the vehicle body, and the symmetrically arranged trajectory guide assemblies provide stable two-point support for the free end of the vehicle door, effectively prevent the vehicle door from twisting during complex movement, and ensure smooth movement.

[0012] Further, the locking mechanism further comprises an unlocking assembly; the unlocking assembly comprises an unlocking block arranged on the vehicle body and a connecting rod group connected to the lock rod; The connecting rod group comprises an unlocking guide part extending on the surface of the driving arm, and a traction part connected to the lock rod, the unlocking guide part is arranged relative to the unlocking block in the closing transition stroke, and the unlocking guide part receives the unlocking block to actuate the connecting rod group, and the traction part pulls the lock rod away from the lever to allow the door driving side to rotate in response to the actuation of the connecting rod group, and the fixed unlocking block on the door closing path triggers unlocking, thereby realizing automatic and reliable switching from the locked state to the unlocked state without additional driving.

[0013] Further, the connecting rod group comprises a sliding rod slidingly arranged on the driving arm, a rotating block rotatably arranged on the driving arm, and a connecting rod; One end of the sliding rod is arranged towards the outside of the driving arm and constitutes the unlocking guide part opposite to the unlocking block in the closing transition stroke, and the other end of the sliding rod is rotatably connected to the rotating block; The rotating block has a first arm and a second arm extending radially from the rotating center thereof, the first arm is provided with a sliding groove, and the other end of the sliding rod is rotatably arranged in the sliding groove; One end of the connecting rod is rotatably connected to the end of the second arm, and the other end of the connecting rod is rotatably connected to the end of the lock rod away from the rotating center thereof and constitutes the traction part, and through the above improvements, the combination of the sliding rod, the rotating block and the connecting rod converts the linear pushing motion into the rotating motion of the lock rod, which is efficient in transmission and reliable in action.

[0014] Further, the locking assembly further comprises a lock shell, and the lock shell at least partially covers the lever, and the lock shell is used for effectively protecting and fixing the locking assembly; In the locked state, the lever is engaged with the lock rod in a perpendicular manner to ensure the stability of the abutment of the lock rod and the lever, and reliably control the locked posture between the vehicle door and the driving arm.

[0015] Further, the dial lever is provided with a control groove for accommodating the door extension part to slide therein, the control groove is arranged opposite to the lock lever, and the door extension part is abutted with the control groove and is deflected towards the rotation center of the lock lever in the dialing state.

[0016] Further, the driving arm is arranged in a goose neck type, the driving arm comprises a door side shaft constituting the door driving side, and a vehicle body shaft arranged to rotate on the vehicle body, the driver is arranged to linearly act, and the action end of the driver is hinged to the bending section of the driving arm and constitutes an initial action point on the bending section, the initial action point is configured as follows: in the initial stage of opening the vehicle door, when the locking mechanism is in the unlocked state, the goose neck arm drives the vehicle door through the initial action point, so that the instantaneous movement direction of the door free side is consistent with the tangent direction of the corresponding position of the track guide groove guide section, through the above improvement, the initial driving force direction is optimized to match the required obstacle avoidance track of the vehicle door.

[0017] Further, the surface side of the driving arm is provided with an assembly area, the locking mechanism is arranged on the assembly area, the door extension part extends from the door driving side of the vehicle door to the surface of the assembly area, and the driving arm is further provided with a wire harness outlet, so that the locking mechanism is integrated on the surface side of the driving arm in a modular form, which greatly simplifies the general assembly process and improves the production efficiency and maintenance convenience.

[0018] Compared with the prior art, the present application has the following advantages and beneficial effects: The present application comprises a driving arm connected with the vehicle door and constituting the door driving side, and a locking mechanism on the driving arm, the locking mechanism controls the rotation of the door driving side in the opening transition stroke of the initial opening of the vehicle door and the closing transition stroke of the final closing, and controls the vehicle door through the track guide assembly, especially the door free side of the vehicle door to act at an expected angle, so as to avoid the obstacles of the vehicle body and the other vehicle door, realize the disorderly opening of the B-pillar-free vehicle door, and through the locking mechanism to control the limited rotation of the door driving side in the unfolding process and the closing process, the vehicle door can be normally opened after the obstacles are avoided, and the door driving side is automatically locked after passing the obstacle-free position, the entry of the locking state is triggered naturally by the track movement of the vehicle door itself, the timing of the whole process is guaranteed by the mechanical logic and geometric relationship between the components, which is accurate and reliable, and avoids the interference risk caused by sensor misjudgment or electric control delay, the present application comprises a complete and fully mechanical control system through the precise linkage between the state switching of the locking mechanism, the physical constraint of the track guide assembly and the driving effect of the driving arm, realizes the disorderly opening without fixed sequence, and completely gets rid of the dependence on complex electric control system and multiple actuators.

[0019] In addition, the trajectory guidance component not only guides the door trajectory, but the connection between the end of its guiding section and the release section acts as a physical limit, ensuring that locking will only occur after the door has fully reached the predetermined obstacle avoidance posture. This, together with the locking mechanism, forms a double insurance, further enhancing the stability and safety of the system.

[0020] The locking mechanism is directly integrated into the surface of the drive arm, and the trajectory guide components are distributed on the upper and lower edges of the door. This eliminates the need to create a large space inside the door panel to install a complex multi-link mechanism, greatly optimizing the layout and conforming to the design trend of lightweight and thin automotive components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the trajectory guidance component of the present invention; Figure 4 The present invention relates to the track guide wheel and track guide groove on the upper side of the vehicle body and door; Figure 5 The present invention relates to the track guide wheel and track guide groove on the lower side of the vehicle body and doors; Figure 6 This is a schematic diagram of the structure of the drive arm and locking assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the present invention after the lock shell has been removed; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the locking assembly and the lock housing of the present invention. Figure 10 This is an exploded view of the present invention; Figure 11 This is a schematic diagram of the structure of the vehicle door in the locked state according to the present invention; Figure 12 For the present invention Figure 11 Enlarged view of point B in the middle; Figure 13 This is a cross-sectional view of the vehicle door of the present invention in the locked state; Figure 14 For the present invention Figure 13 Enlarged view of point C in the middle; In the picture: 1. Door; 1.1 Door driving side; 1.2 Door free side; 2. Vehicle body; 3. Drive arm; 3.1. Body axle; 3.2. Door side axle; 3.3. Guide groove; 3.4. Wiring harness lead-in; 3.5. Assembly area; 3.6. Limiting contact part; 4. Driver; 4.1. Actuating end; 5. Locking assembly; 5.1. Lever; 5.11. Control slot; 5.12. Hook; 5.2 Locking bar; 5.21 Hook and hook part; 5.22 Torsion spring; 5.3 Lock housing; 5.31 Guide groove; 6. Door extension; 7. Unlock the block; 8. Linkage assembly; 8.1 Slide bar; 8.11 Roller; 8.2 Rotary lever; 8.21 First arm; 8.22 Second arm; 8.23 ​​Slide groove; 8.3 Connecting rod; 9. Track guidance component; 9.1 Track guide groove; 9.11 Guide section; 9.12 Release section; 9.2 Track guide wheel; 9.3 Body mounting plate; 9.4 Door mounting plate; 9.5 Adjustment mounting holes; 10. Framework components; Detailed Implementation

[0022] 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.

[0023] 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.

[0024] like Figures 1-14 As shown, a pillarless double door that can be opened in any order includes: The drive arm 3 is rotatably connected between the door 1 and the body 2. One end of the drive arm 3 is connected to the door 1 to form the door drive side 1.1, and the door 1 is located away from the drive arm 3 to form the door free end. The drive arm 3 includes a body shaft 3.1 rotatably connected to the body 2 and a door side shaft 3.2 connected to the door 1. The door side shaft 3.2 forms the rotation axis of the door drive side 1.1. The actuator 4 provides actuating force to the drive arm 3 to open and close the door 1 relative to the body 2. The actuator 4 provides actuating force, the drive arm 3 is preferably of gooseneck type, and the swing arm 4.1 of the actuator 4 is rotatably connected to the drive arm 3. The locking mechanism is located between the drive arm 3 and the door 1. It has an unlocked state that allows the door drive side 1.1 to swing, and a locked state that prevents the door drive side 1.1 from swinging so as to keep the drive arm 3 and the door 1 moving synchronously. The trajectory of the door drive side 1.1 between the unlocked state and the locked state defines a transition stroke, in which the adjustment of the door 1's unobstructed posture is completed. The trajectory guiding component 9 includes a trajectory guide groove 9.1 disposed on the vehicle body 2 and a trajectory guide wheel 9.2 disposed on the free end of the door 1. The trajectory guide groove 9.1 has a guiding section 9.11 and a releasing section 9.12. During the initial opening and final closing phases of the door 1, the locking mechanism is in the unlocked state, and the trajectory guide wheel 9.2 is located within the guiding section 9.11 of the trajectory guide groove 9.1. Under the drive of the drive arm 3 and the constraint of the trajectory guiding component 9, the door 1 moves along a preset obstacle avoidance trajectory. When the door 1 moves to an obstacle-free posture, the trajectory guide wheel 9.2 leaves or enters the guiding section 9.11 of the trajectory guide groove 9.1. When leaving, the locking mechanism synchronously switches to the locked state, and the drive arm 3 locks with the door 1 and moves synchronously. When entering, the locking mechanism is ready to switch to the unlocked state, and the drive arm 3 and the door 1 are ready to unlock and rotate relative to each other.

[0025] Specifically, the track guide wheel 9.2 will follow the door 1 from the unlocked state in the closed position to the locked state after the transition stroke, and travel within the track guide groove 9.1. The guide segment 9.11 defines the obstacle avoidance trajectory. In the closed position, the track guide wheel 9.2 is located at the starting end of the guide segment 9.11. During the opening transition stroke, the track guide wheel 9.2 starts to travel from the guide segment 9.11. After the door drive side 1.1 reaches the locked state, the track guide wheel 9.2 completes the path of the guide segment 9.11 and enters the release segment 9.12. The release segment 9.12 is used to allow the track guide wheel 9.2 to disengage from the track guide groove 9.1, so that the door 1 can open in the expected unfolding posture in the locked state of the door drive side 1.1. During the closing process, the release segment 9.12 is used to receive the track guide wheel 9.2 in the closing action and guides the free end of the door 1 to the fully closed position where it engages with the body 2 and the other door 1 through the guide segment 9.11. It should be noted that the door drive side 1.1 refers to the rotational connection between the drive arm 3 and the door 1. The above-mentioned unlocked state means that the drive arm 3 and the door 1 can rotate relative to each other, and the above-mentioned locked state means that the drive arm 3 and the door 1 are relatively fixed, that is, the door 1 and the drive arm 3 cannot rotate, so that the door 1 is unfolded in a fixed posture. In this embodiment, the door 1 in the locked state is the same as the unfolded posture of the traditional door 1.

[0026] The aforementioned transition process includes opening the transition process and closing the transition process.

[0027] When door 1 is in the closed position, the drive arm 3 is in the unlocked state with door 1. During the process of door 1 opening from closed, the travel distance between door 1 and the unlocked state is defined as the opening transition travel distance. During this travel distance, the door drive side 1.1 sways in the direction outside the vehicle width and away from the other door 1. The door free side 1.2 guides and controls the swaying attitude through the trajectory guide component 9. Door 1 is adjusted from the closed position to the unobstructed attitude. Then, the drive arm 3 enters the locked state with door 1, and the drive arm 3 will drive door 1 to swing out synchronously.

[0028] When the door 1 is in the open position, the drive arm 3 is locked to the door 1. During the process of the door 1 from opening to closing, the travel of the door 1 from the locked state to the unlocked state is defined as the closing transition travel. During this travel, the door drive side 1.1 sways in the direction within the vehicle width and in the direction biased towards the other door 1. The door free side 1.2 is guided and controlled by the trajectory guide component 9 to control the swaying attitude. The door 1 is adjusted from the open position to the unobstructed posture to cut in. At this time, the drive arm 3 and the door 1 enter the unlocked state. The drive arm 3 will drive the door 1 to close to the body 2 and the other door 1 in a relative rotation manner.

[0029] like Figures 3 to 5 As shown, as a further embodiment of the trajectory guidance component 9, the guide segment 9.11 and the release segment 9.12 are arranged to extend in the vehicle width direction, and the guide segment 9.11 has a directional component of the guide trajectory guide wheel 9.2 in the direction outside the vehicle width, and a directional component away from the other door 1, thereby forming a composite trajectory for the guide segment 9.11, which constrains the motion degree of freedom of the free side of the door 1. This makes it so that when the door 1 is in the unlocked state, the free side 1.2 of the door must follow the obstacle avoidance path of first separating from the pressing surface with the rear door, and then swinging backward, and connect with the entrance of the release segment 9.12 at the switching point of the locked state, ensuring the inevitability and repeatability accuracy of the disordered opening action; The release section 9.12 is an opening or straight groove that allows the track guide wheel 9.2 to disengage from the constraint. In this embodiment, the release section 9.12 is preferably an opening, and the opening of the release section 9.12 expands outward in the shape of a trumpet. This is to allow the track guide wheel 9.2 to better disengage from the release section 9.12 when it switches to the locked state, and to better enter the release section 9.12 when it switches to the unlocked state.

[0030] Specifically, the trajectory guide assembly 9 is set on the upper and lower sides of the door 1 and the body 2. At least one of the trajectory guide grooves 9.1 is provided with an expansion opening release section 9.12 to ensure the stability of the door free side 1.2 when it closes to the body 2 and reduce the sense of jerking. In addition, the upper and lower trajectory guide assemblies 9 form a static support structure to smoothly guide the door 1 to complete the obstacle avoidance action, avoid the jamming or wear that may be caused by single-point guidance, and ensure the posture of the door 1 throughout the entire transition stroke, so that the locking mechanism can switch states at the accurate time.

[0031] Further reference Figure 4 and Figure 5 In other embodiments, the trajectory guide assembly 9 further includes a body mounting plate 9.3 for mounting the trajectory guide groove 9.1 on the body 2 and a door mounting plate 9.4 for mounting the trajectory guide wheel 9.2 on the door 1. The body mounting plate 9.3 and the door mounting plate 9.4 are respectively provided with adjustment mounting holes 9.5 to ensure that the trajectory guide assembly 9 guides the free side of the door.

[0032] As an example, a first mounting hole in the length direction is provided on the body mounting plate 9.3 and the door mounting plate 9.4. Optionally, a second mounting hole in the width direction may also be provided on the body mounting plate 9.3 and the door mounting plate 9.4.

[0033] In addition, for ease of assembly, both the door mounting plate 9.4 and the body mounting plate 9.3 are L-shaped components.

[0034] like Figures 6 to 10 As shown, as a further embodiment of the locking component 5 in the locking mechanism, the locking component 5 includes a lever 5.1 and a locking lever 5.2 rotatably mounted on the drive arm 3, and a door extension 6 disposed on the door drive side 1.1 of the door 1 and near the rotation center of the door drive. The door extension 6 is disposed near the door side axis 3.2 and is used to cooperate with the lever 5.1. The door extension 6 can act on the lever 5.1 as the drive arm 3 drives the door 1 to rotate, causing the lever 5.1 to swing around its own axis. The locking lever 5.2 is used to control the position and attitude of the lever 5.1 so as to fix the door extension 6 relative to the lever 5.1, thereby preventing the drive arm 3 and the door 1 from rotating in the locked state.

[0035] In this configuration, lever 5.1 engages with door extension 6, and locking lever 5.2 tends to rotate toward lever 5.1. During the opening transition stroke, door extension 6 actuates lever 5.1, and locking lever 5.2 is released as lever 5.1 rotates, and stops in the movement trajectory of the locking part at the end of lever 5.1, maintaining the relative position of the locking mechanism and door extension 6 to control the door drive unit in the locked state.

[0036] During the opening transition stroke, the locking assembly 5 acts the drive arm 3 on the door drive side 1.1, and the trajectory guide assembly 9 guides the door free side 1.2, so that the swing of the door 1 relative to the drive arm 3 is converted into the rotation of the lever 5.1. When the door 1 reaches the end position of the guide section 9.11, the lever 5.1 rotates synchronously to the position of hooking and engaging with the locking lever 5.2. Under the action of the torsion spring 5.22, the locking lever 5.2 completes the locking of the lever 5.1, thereby realizing the correlation between trajectory movement and state locking, and realizing precise control of the door 1 from the unlocked state to the locked state.

[0037] from Figure 8 and Figure 9 As can be seen, as a further embodiment of the cooperation between the lever 5.1 and the door extension 6, the door extension 6 is preferably a pin member provided on the door drive side 1.1. The lever 5.1 is provided with a control groove 5.11 for accommodating the sliding of the door extension 6. The control groove 5.11 is opened on one side facing the door extension 6, and the groove wall of the control groove 5.11 abuts against the door extension 6. The free part of the door rotates with the swing of the door 1, thereby actuating the lever 5.1 to rotate during the transition stroke. In this case, the door extension 6 abuts against the lever 5.1 in the locked state to limit the sway of the door drive side 1.1. The lever 5.1 in the locked state is engaged with the lock rod 5.2 and thus held in place.

[0038] In the unlocked state, the door extension 6 guides the lever 5.1 to move through the groove wall of the control groove 5.11, making the force transmission smoother; in the locked state, the door extension 6 is tightly constrained in the control groove 5.11, forming a closed force transmission path together with the lever 5.1, the locking lever 5.2, and the lock housing 5.3.

[0039] As a further embodiment of the cooperation between lever 5.1 and locking lever 5.2, locking lever 5.2 is provided with torsion spring 5.22, which is used to drive locking lever 5.2 to rotate toward lever 5.1. The locking position of lever 5.1 and locking lever 5.2 is preferably at their ends. Specifically, lever 5.1 has a hook 5.12 at the end opposite to the door extension 6, which is opposite to the control groove 5.11. Locking lever 5.2 has a hook 5.21 at the end opposite to its rotation axis. Hook 5.12 and hook 5.21 are engaged in the locked state. Hook 5.12 is an edge-shaped protrusion extending from the end of lever 5.1, and hook 5.21 has a complementary structure to hook 5.12, preferably set as a groove or step shape for hook 5.12 to overlap.

[0040] In the unlocked state with the door 1 closed, the hook 5.12 abuts against the side of the locking lever 5.2 near its rotation center. During the opening transition stroke from the unlocked to the locked state, the lever 5.12 is actuated by the door extension 6 and rotates toward the hook 5.12 of the locking lever 5.2, causing the hook 5.12 to slide along the surface of the locking lever 5.2 until it approaches the end of the locking lever 5.2 and enters the elastic actuation path of the hook 5.21. At this time, the locking lever 5.2 moves toward the lever 5.1 under the action of the torsion spring 5.22, and the edge of the hook 5.12 crosses the boundary formed by the end of the locking lever 5.2 and the hook 5.21, that is, the hook 5.12 engages with the hook 5.21, completing the locking of the locking lever 5.2 onto the lever 5.1. Then, the lever 5.1 controls the door extension 6, causing the door 1 and the drive arm 3 to enter the locked state.

[0041] Optionally, during the transition stroke of opening the door 1, the locking lever 5.2 deflects away from the lever 5.1 due to the abutment of the lever 5.1, in order to further overcome the torsion spring 5.22, so that when the locking state is about to be reached, the locking lever 5.2 can quickly engage with the hook 5.12 of the lever 5.1 under the action of the torsion spring 5.22, thereby improving the smoothness of the locking state switching action.

[0042] like Figure 9 As shown, the locking assembly 5 further includes a lock housing 5.3, which at least partially covers the lever 5.1 and provides a covering edge on the side of the lever 5.1 opposite to the locking lever 5.2. This covering edge is specifically provided on the side of the lever 5.1 opposite to the rotation direction of the locking lever 5.2.

[0043] like Figure 14 As shown, specifically, the door is provided with a limiting contact portion 3.6. The limiting contact portion 3.6 and the drive arm make hard contact with each other in the locked state to limit the swing of the door toward the vehicle body. The limiting contact portion is a part formed on the door drive side of the door. It abuts against the drive arm that has just reached the locked state. At this time, the door cannot rotate toward the vehicle body with the door side axis, which avoids the pawl being actuated by the door extension and rotating away from the lock bar. Thus, in the locked state, reliable locking is provided on both sides of the rotation direction of the lever 5.1 by the hook portion 5.21 of the lock bar 5.2 and the limiting abutment between the door and the drive arm on the limiting contact portion.

[0044] like Figures 11 to 14As shown, when the door 1 is locked, with the body axle 3.1 as a reference, the lever 5.1 and the locking lever 5.2 cooperate to stop the door extension 6 and the door side drive end to rotate towards the outside of the door 1. The lever 5.1 and the limiting contact part 3.6 cooperate to stop the door extension 6 and the door drive end to rotate towards the inside of the door 1. The locking lever 5.2 mainly resists the torque that causes the door 1 to continue to open relative to the drive arm 3, while the limiting contact part 3.6 effectively resists the door 1 from closing inward by making hard contact with the drive arm. This achieves bidirectional locking of the door 1, enhances the rigidity and reliability of the locked state, and ensures absolute stability after the door 1 is fully opened.

[0045] Alternatively, the hook portion 5.21 may be a stepped structure located on the locking bar 5.2 away from its rotation center.

[0046] In the above embodiment, in the locked state, the lever 5.1 and the locking lever 5.2 tend to engage vertically, and the hook portion 5.21 of the locking lever 5.2 stops on the rotation path of the hook portion 5.12 of the lever 5.1, thereby restricting the rotation of the door extension 6 and the body axle 3.1 and improving the reliability of the door drive side 1.1 in the locked state.

[0047] Preferably, the direction of the constraint force of the locking rod 5.2 on the lever 5.1 is basically perpendicular to the direction of the force on the lever 5.1. This optimizes the force locking angle and effectively transmits the force generated by the movement of the door 1 to the locking rod 5.2 and the drive arm 3, avoiding the generation of tangential force at the joint surface that would lead to separation, thereby improving the reliability of the locking state.

[0048] Further reference Figures 8 to 10 As shown, in this embodiment, the locking mechanism further includes an unlocking component; the unlocking component includes an unlocking block 7 disposed on the vehicle body 2 and a linkage group 8 connected to the locking rod 5.2. The unlocking block 7 is disposed on the vehicle body 2 near the closed position of the door drive side 1.1, so that when the door 1 rotates from the fully open position into the closed transition stroke, the unlocking block 7 can act on the linkage group 8. Preferably, the unlocking block 7 acts on the linkage group 8 only during the closed transition stroke.

[0049] Specifically, the linkage 8 includes multiple linkage units, which form an unlocking guide and a traction part at both ends of the linkage 8. The unlocking guide extends on the surface of the drive arm 3. In the locked state, the linkage 8 rotates due to the actuation of the locking rod 5.2 and the torsion spring 5.22, causing the unlocking guide to protrude from the drive arm 3. The unlocking guide is positioned relative to the unlocking block 7 during the closing transition stroke, so that the unlocking guide and the unlocking block 7 can engage with each other during the closing transition stroke, and the unlocking guide receives the unlocking block 7 to actuate the linkage 8. For the traction unit, the traction unit is connected to the locking rod 5.2. It responds to the actuation of the unlocking guide in the linkage group 8 by the unlocking block 7. The traction locking rod 5.2 rotates away from the lever 5.1 to the unlocked state. That is, when the unlocking block 7 abuts against the unlocking guide protruding in the locked state, the linkage units of the linkage group 8 rotate relative to each other, which eventually causes the traction unit to pull the locking rod 5.2 away from the lever 5.1. At this time, the hook 5.12 of the lever 5.1 disengages from the hook 5.21 of the locking rod 5.2, and the door drive side 1.1 enters the unlocked state. The drive arm 3 and the door 1 can rotate and adjust around the body axis 3.1 until the door 1 enters the closed position engaged with the body 2.

[0050] from Figure 8 and Figure 14 As can be seen, specifically, the unlocking block 7 protrudes relatively in the closing trajectory of the door 1. The unlocking block 7 is a sloping protrusion. When the locking rod 5.2 is locked, one end of the drive linkage group 8 protrudes from the drive arm 3. The unlocking block 7 abuts against one end of the linkage group 8 in the locked state. When the unlocking guide passes the highest point of the unlocking block 7, the unlocking of the locking component 5 is completed.

[0051] By defining the protruding shape of the unlocking block 7, it is ensured that the unlocking block 7 contacts the unlocking guide protruding in the locked state and triggers unlocking, thus ensuring the necessity and timing accuracy of the unlocking action. This ensures that the locking mechanism is reliably released before the door 1 is fully closed. At this time, the drive arm 3 on the door drive side 1.1 can rotate relative to the door 1 and swing to the fully closed position under the action of the trajectory guide component 9 on the door free side 1.2.

[0052] In addition, the unlocking block 7 also has a descending section extending on the slope-shaped protrusion near the side of the vehicle body 2. This descending section is used to avoid the unlocking guide and prevent excessive contact with the unlocking guide.

[0053] When door 1 closes and enters the closing transition stroke, the unlocking block 7 fixed to the body 2 contacts the protruding unlocking guide on the drive arm 3. This contact force is converted into a traction force on the locking lever 5.2 through the linkage group 8, causing it to overcome the elastic force and separate from the lever 5.1. The mechanical action of the unlocking component is converted into an unobstructed cutting motion when door 1 closes. At the same time, the track guide wheel 9.2 prepares to enter the guide section 9.11 from the release section 9.12, realizing the synchronous triggering of the final guiding action of the track guide component 9 guiding door 1 to close, ensuring that door 1 can smoothly return to the fully closed position.

[0054] As a further embodiment of the linkage assembly 8, the linkage assembly 8 includes a slide rod 8.1 slidably disposed on the drive arm 3, a rotating paddle 8.2 rotatably disposed on the drive arm 3, and a connecting rod 8.3; One end of the slide bar 8.1 is positioned facing the outside of the drive arm 3 and forms an unlocking guide that is opposite to the unlocking block 7 during the closing transition stroke. The other end of the slide bar 8.1 is rotatably connected to the rotating toggle block 8.2. The slide bar 8.1 is constrained to slide linearly on the drive arm 3, and the drive arm 3 is provided with a guide groove 3.3 for the slide bar 8.1 to slide in. The rotating lever 8.2 has a first arm 8.21 and a second arm 8.22 extending radially from its rotation center. The first arm 8.21 is provided with a groove 8.23, and the other end of the slide rod 8.1 is rotatably and slidably disposed in the groove 8.23. One end of the connecting rod 8.3 is rotatably connected to the end of the second arm 8.22, and the other end of the connecting rod 8.3 is rotatably connected to the end of the locking rod 5.2 that is away from its rotation center, thus forming a traction part.

[0055] Preferably, a roller 8.11 is provided on the end of the slide bar 8.1 that serves as the unlocking guide. The roller 8.11 contacts the guide surface during the closing transition stroke to improve the smoothness and reliability of the unlocking action.

[0056] The slide bar 8.1 bears the thrust of the unlocking block 7. Through the slide groove 8.23 ​​on the rotating lever 8.2, the linear motion is converted into the rotational motion of the rotating lever 8.2. Then, through the connecting rod 8.3, the rotational motion is transmitted into a linear pulling force on the end of the locking bar 5.2, which finally realizes the rotational unlocking of the locking bar 5.2. This makes the unlocking action easy and reliable, and converts the collision impact into a smooth lever motion, thus improving reliability.

[0057] It should be noted that the aforementioned linkage group 8 is a component arranged on the end face of the drive arm 3, which is different from the multi-link structure between the body 2 and the door 1 in the prior art.

[0058] During the transitional closing stroke, door 1 is already close. During this stroke, the drive arm 3, in the closing action, approaches the unlocking block 7. The sliding rod 8.1, in the locked state, slides and protrudes relative to the drive arm 3 due to the traction of the locking rod 5.2 on the linkage group 8. This causes the protruding sliding rod 8.1 to abut against the unlocking block 7. Furthermore, by rotating the lever 8.2 and connecting rod 8.3, the locking rod 5.2 is pulled away from the lever 5.1. At this point, the door 1 on the door drive side 1.1 can rotate relative to the drive arm 3. The pawl rotates to the unlocked state under the action of the door extension 6, that is, the hook 5.12 abuts against the rotation center side of the locking bar 5.2. At the same time, the track guide wheel 9.2 gradually slides towards the initial end of the guide section 9.11. The door drive side 1.1 sways in the direction within the vehicle width and towards the other door 1. The door free side 1.2 guides and controls the swaying posture through the track guide assembly 9. The door 1 is adjusted to an unobstructed posture and closed.

[0059] Further reference Figure 10 Specifically, the locking assembly 5 includes a lock housing 5.3, on which a guide groove 5.31 is provided for the sliding of the movable end of the linkage assembly 8. The movable end includes at least the rotating movable end between the connecting rod 8.3 and the locking rod 5.2, and between the connecting rod 8.3 and the second arm 8.22 of the rotating lever 8.2. The guide groove 5.31 guides the movement of the linkage assembly 8, constraining the movable end of the linkage assembly 8 to move only on a preset path, preventing it from swaying or getting stuck, and ensuring the accuracy and consistency of the unlocking action to avoid the impact of the door 1 moving on the linkage assembly 8. On the other hand, the guide groove 5.31 also integrates the moving parts of the unlocking mechanism into the lock housing 5.3, further optimizing the spatial layout and dustproof effect.

[0060] Specifically, the drive arm 3 is configured as a gooseneck type, including a door side shaft 3.2 constituting the door drive side 1.1 and a body shaft 3.1 rotatably mounted on the body 2. The driver 4 is configured as a linear actuator with a rocker arm 4.1, which linearly drives the rocker arm 4.1 to move. The two ends of the rocker arm 4.1 are hinged to the curved section of the drive arm 3 and the moving end of the driver 4, forming an initial point of action on the curved section. This initial point of action is configured such that, in the initial stage of opening the door 1, when the locking mechanism is in the unlocked state, the gooseneck arm drives the door 1 through this initial point of action, so that the instantaneous movement direction of the free side 1.2 of the door is consistent with the tangential direction of the guide segment 9.11 of the track guide groove 9.1 at the corresponding position. This causes the initial direction of the driver 4 to generate a torque that causes the free side of the door 1 to move along the tangential direction of the guide segment 9.11 of the track guide groove 9.1. The door 1 tends to execute a smooth and natural obstacle avoidance path, achieving smooth and efficient movement and reducing internal friction and impact.

[0061] like Figure 1 As shown, as a further improvement to the drive arm 3, the drive arm 3, as the main component for transmitting power to the door 1, needs to be configured with sufficient structural strength. It is preferable to increase its thickness in the vehicle height direction to ensure stable transmission to the door 1. Combined with the trajectory guide components 9 arranged on the upper and lower sides, it ensures the state switching of the door 1 during the transition stroke.

[0062] Based on this, it is preferable to set a frame assembly 10 on the upper and lower sides of the drive arm 3. The frame assembly 10 is used to further limit and support the drive arm 3 in the vertical direction, and to provide an installation position for the unlocking block 7 and the driver 4, thereby forming the door 1 drive assembly.

[0063] Specifically, the drive arm 3 has an assembly area 3.5 on its surface, and the locking mechanism is arranged on the assembly area 3.5. The door extension 6 extends from the door drive side 1.1 of the door 1 to the surface of the assembly area 3.5. The assembly area 3.5 is preferably located on the upper end face of the drive arm 3. The lock housing 5.3 is fixed to the assembly area 3.5 away from the door 1 by bolts. The lock housing 5.3 preferably covers the unlocking component and the locking component 5, and exposes the rotation center of the lever 5.1 and the control groove 5.11 to optimize the protection of the locking mechanism. The locking mechanism is modularized, which facilitates later maintenance and debugging and achieves a high degree of functional integration. The drive arm 3 is not only a transmission component, but also integrates the locking and unlocking functions relative to the door 1. This modular design simplifies the structure of the door 1. During vehicle assembly, only the modular drive arm 3 assembly needs to be connected to the door 1 and the body 2, which greatly reduces the assembly complexity and time cost.

[0064] The drive arm 3 is also provided with a wire harness inlet 3.4. The wire harness is preferably configured to conform to the inner side of the drive arm 3 and is reserved to follow the movement of the drive arm 3. The reserved wire harness inlet 3.4 provides a regular arrangement path for the power supply and control wire harness of the driver 4, which improves reliability.

[0065] 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 pillarless double door that can be opened in any order, characterized in that, include: The drive arm (3) is rotatably connected between the door (1) and the body (2). One end of the drive arm (3) is connected to the door (1) to form the door drive side (1.1), and the door (1) is located at the end opposite to the drive arm (3) to form the door free end. A driver (4) provides actuation force to the drive arm (3) to open and close the door (1) relative to the vehicle body (2); The locking mechanism is disposed between the drive arm (3) and the door (1), having an unlocked state that allows the door drive side (1.1) to swing, and a locked state that prevents the door drive side (1.1) from swinging to keep the drive arm (3) and the door (1) moving synchronously, and the trajectory of the door drive side (1.1) between the unlocked state and the locked state defines a transition stroke. The trajectory guiding component (9) includes a trajectory guide groove (9.1) disposed on the vehicle body (2) and a trajectory guide wheel (9.2) disposed on the free end of the door (1). The trajectory guide groove (9.1) has a guide section (9.11) and a release section (9.12). The guide section (9.11) defines the obstacle avoidance trajectory during the transition stroke. During the opening and closing transition strokes of the door (1), the locking mechanism is in the unlocked state, the track guide wheel (9.2) is located in the guide section (9.11), and the door (1) moves along a preset obstacle avoidance trajectory under the drive of the drive arm (3) and the constraint of the track guide assembly (9). When the door (1) moves to an unobstructed posture, the trajectory guide wheel leaves or enters the guide section, and the door drive side switches between the unlocked state and the locked state.

2. The non-B-pillar-less double door that can be opened in any order according to claim 1, characterized in that: The guide section (9.11) is provided to extend in the vehicle width direction, and the guide section (9.11) has a directional component of the guide track wheel (9.2) in the direction outside the vehicle width, and a directional component away from the other door (1), and the release section (9.12) is an opening or straight groove that allows the guide track wheel (9.2) to disengage from the constraint.

3. A column-free double door that can be opened in any order, as described in claim 1, characterized in that: The locking mechanism includes a lever (5.1) and a locking lever (5.2) rotatably mounted on the drive arm (3), and a door extension (6) disposed on the door drive side (1.1) of the door (1) and near the rotation center of the door drive side; The lever (5.1) engages with the door extension (6), the locking lever (5.2) tends to rotate toward the lever (5.1), and the door extension (6) actuates the lever (5.1) during the opening transition stroke. The locking lever (5.2) is released as the lever (5.1) rotates and stops in the movement trajectory of the locking part at the end of the lever (5.1), and maintains the relative position of the locking mechanism and the door extension (6) to control the door drive side in the locked state.

4. A column-free double door that can be opened in any order, as described in claim 1, characterized in that: The door is provided with a limiting part, which limits the door to each other in the locked state and restricts the door from swinging towards the vehicle body.

5. A column-free double door that can be opened in any order, as described in claim 3, characterized in that: The locking mechanism further includes an unlocking component; the unlocking component includes an unlocking block (7) disposed on the vehicle body (2) and a linkage group (8) connected to the locking rod (5.2); The linkage assembly (8) includes an unlocking guide extending on the surface of the drive arm (3) and a traction part connected to the locking lever (5.2). The unlocking guide is positioned relative to the unlocking block (7) during the closing transition stroke, and the unlocking guide actuates the linkage assembly (8) by receiving the unlocking block (7). The traction part, in response to the actuation of the linkage assembly (8), pulls the locking lever (5.2) away from the lever (5.1) to allow the door drive side (1.1) to rotate.

6. A column-free double door that can be opened in any order, as described in claim 5, characterized in that: The linkage assembly (8) includes a slide rod (8.1) slidably disposed on the drive arm (3), a rotating paddle (8.2) rotatably disposed on the drive arm (3), and a connecting rod (8.3); One end of the slide bar (8.1) is positioned towards the outside of the drive arm (3) and forms an unlocking guide that is opposite to the guide block during the closing transition stroke. The other end of the slide bar (8.1) is rotatably connected to the rotating toggle block (8.2). The rotating lever (8.2) has a first arm (8.21) and a second arm (8.22) extending radially from its rotation center. The first arm (8.21) is provided with a groove (8.23), and the other end of the slide rod (8.1) is rotatably and slidably disposed in the groove (8.23). One end of the connecting rod (8.3) is rotatably connected to the end of the second arm (8.22), and the other end of the connecting rod (8.3) is rotatably connected to the end of the locking rod (5.2) opposite to its rotation center, thus forming a traction part.

7. A column-free double door that can be opened in any order, as described in claim 3, characterized in that: The locking assembly (5) further includes a lock housing (5.3), which at least partially covers the lever (5.1) and the locking mechanism. In the locked state, the lever (5.1) and the locking lever (5.2) tend to engage vertically.

8. A column-free double door that can be opened in any order, as described in claim 3, characterized in that: The lever (5.1) is provided with a control groove (5.11) for accommodating the sliding of the door extension (6). The control groove (5.11) is arranged opposite to the locking lever (5.2), and the door extension (6) abuts against the control groove (5.11). In the locked state, the door drive side (1.1) deflects, and in the unlocked state, the lever (5.1) deflects towards the rotation center of the locking lever (5.2).

9. A column-free double door that can be opened in any order, as described in claim 1, characterized in that: The drive arm (3) is configured as a gooseneck type. The drive arm (3) includes a door side shaft (3.2) that constitutes the door drive side (1.1) and a body (2) shaft that is rotatably mounted on the body (2). The driver (4) is configured to move linearly, and the action end (4.1) of the driver (4) is hinged to the curved section of the drive arm (3) and forms an initial point of action on the curved section. The initial point of action is configured such that: in the initial stage of opening the door (1), when the locking mechanism is in the unlocked state, the gooseneck arm drives the door (1) through the initial point of action, so that the instantaneous movement direction of the free side (1.2) of the door is consistent with the tangential direction of the guide section (9.11) of the trajectory guide groove (9.1) at the corresponding position.

10. A column-free double door that can be opened in any order, as described in claim 3, characterized in that: The drive arm (3) has an assembly area (3.5) on its surface, the locking mechanism is arranged on the assembly area (3.5), the door extension (6) extends from the door drive side (1.1) of the door (1) to the surface of the assembly area (3.5), and the drive arm (3) is also provided with a wire harness lead-in (3.4).

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