drive device
By setting the drive unit and adjustment unit at the hinge separation position, and using cables, shafts or linkage mechanisms to change the bending angle of the door, the problem of limited combination configuration of motor and hinge is solved, realizing the flexibility of door design and space utilization efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HI-LEX CORPORATION
- Filing Date
- 2021-12-02
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, the combination configuration of motor and hinge in the drive unit is limited, which restricts the degree of freedom in door design.
A drive unit and an adjustment unit are set at a position separated from the hinge. The degree of bending of the lower door relative to the upper door is changed by driving force. The driving force is transmitted and the angle is adjusted by using cables, shafts or linkage mechanisms.
It increases the design freedom of the car door, avoids the space limitations caused by the large size of the motor, and enhances the operational flexibility of the car door.
Smart Images
Figure CN116783362B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a drive device. Background Technology
[0002] Patent Document 1 discloses a drive unit for driving a vehicle door, the door having an upper door and a lower door rotatably connected to the upper door. The drive unit disclosed in Patent Document 1 is a device for changing the angle of the lower door relative to the upper door. This drive unit includes a motor, a reducer, and an arm, and also has a hinge that rotatably supports the lower door. The hinge is a connecting part that connects the upper door and the lower door.
[0003] One end of the arm is fixed to the upper door, and the other end is fixed to the support shaft of the reducer. By rotating the arm around the support shaft, the relative angle between the lower door and the upper door changes.
[0004] Existing technical documents
[0005] Patent documents
[0006] Patent Document 1: Japanese Patent Application Publication No. 2009-173254 Summary of the Invention
[0007] The problem that the invention aims to solve
[0008] However, in the drive unit disclosed in Patent Document 1, the motor, which serves as the drive unit, is integrally integrated with the hinge, which is the connecting part. In this case, the motor's capacity is determined based on specifications such as the weight of the door, but since a motor with higher capacity may be larger, it is difficult to combine the motor and hinge in a suitable configuration. As a result, the design freedom of the door may be limited.
[0009] The purpose of this invention is to provide a drive device that can increase the freedom of design for vehicle doors.
[0010] Technical solutions for solving the problem
[0011] The driving device of the present invention is a driving device for driving a vehicle door, the vehicle door having an upper door and a lower door rotatably connected to the upper door, the driving device having: a driving part disposed at a position spaced apart from the connecting part rotatably connecting the upper door and the lower door, and generating a driving force to drive the upper door or the lower door; and an adjusting part that, based on the driving force, changes the degree of bending of the lower door relative to the upper door.
[0012] Invention Effects
[0013] According to the present invention, a drive device that can increase the degree of freedom in the design of vehicle doors can be obtained. Attached Figure Description
[0014] Figure 1 This is an exterior view showing an example of the rear of a vehicle 100 to which the drive device according to an embodiment of the present invention is applied.
[0015] Figure 2A This is an enlarged view showing an example of a car door 1 equipped with a drive device 10 according to an embodiment of the present invention.
[0016] Figure 2B This is an enlarged view showing an example of a car door 1 equipped with a drive device 10 according to an embodiment of the present invention.
[0017] Figure 3 This is a diagram illustrating a structural example of the drive device 10 according to an embodiment of the present invention.
[0018] Figure 4A This is a diagram used to illustrate the operation of the drive unit 10.
[0019] Figure 4B This is a diagram used to illustrate the operation of the drive unit 10.
[0020] Figure 5A This is a diagram used to illustrate the operation of the drive unit 10.
[0021] Figure 5B This is a diagram used to illustrate the operation of the drive unit 10.
[0022] Figure 6A This is a diagram used to illustrate the operation of the drive unit 10.
[0023] Figure 6B This is a diagram used to illustrate the operation of the drive unit 10.
[0024] Figure 7A This is a diagram used to illustrate the operation of the drive unit 10.
[0025] Figure 7B This is a diagram used to illustrate the operation of the drive unit 10.
[0026] Figure 8A This is a diagram used to illustrate the operation of the drive unit 10.
[0027] Figure 8B This is a diagram used to illustrate the operation of the drive unit 10.
[0028] Figure 9A This is a diagram used to illustrate the operation of the drive unit 10.
[0029] Figure 9B This is a diagram used to illustrate the operation of the drive unit 10.
[0030] Figure 10A This is a diagram used to illustrate the operation of the drive unit 10.
[0031] Figure 10B This is a diagram used to illustrate the operation of the drive unit 10.
[0032] Figure 11A This is a diagram used to illustrate the operation of the drive unit 10.
[0033] Figure 11B This is a diagram used to illustrate the operation of the drive unit 10.
[0034] Figure 12 This is a diagram illustrating a first modified example of the drive device 10 according to an embodiment of the present invention.
[0035] Figure 13 This is a diagram illustrating a second variation of the drive device 10 according to an embodiment of the present invention.
[0036] Figure 14 This diagram illustrates the action of increasing the degree of bending of the lower door 1b relative to the upper door 1a.
[0037] Figure 15 This diagram illustrates the action of increasing the degree of bending of the lower door 1b relative to the upper door 1a.
[0038] Figure 16 This diagram illustrates the action of reducing the degree of bending of the lower door 1b relative to the upper door 1a.
[0039] Figure 17 This diagram illustrates the action of reducing the degree of bending of the lower door 1b relative to the upper door 1a. Detailed Implementation
[0040] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0041] Figure 1 This is an external view showing an example of the rear of a vehicle 100 to which the drive device according to an embodiment of the present invention is applied. The vehicle 100 includes a door 1 that allows an opening 100a formed at the rear of the vehicle 100 to be in an open or closed state.
[0042] The open state is the state in which the opening 100a is open, and it is a state in which goods or the like can be loaded into or taken out of the vehicle 100 through the opening 100a. The closed state is the state in which the opening 100a is closed.
[0043] Door 1 is, for example, a center-folding tailgate with an upper door 1a and a lower door 1b. In addition, door 1 is not limited to the tailgate of vehicle 100, but may also be, for example, an upward-opening passenger door.
[0044] The upper door 1a is rotatably mounted to the vehicle body via two hinges 2a1 and 2a2. The lower door 1b is rotatably connected to the upper door 1a via two hinges 2b1 and 2b2. The two hinges 2b1 and 2b2 are an example of the connection between the upper door 1a and the lower door 1b. Hereinafter, without distinguishing between the two hinges 2a1 and 2a2, they will be simply referred to as "hinge 2a". Similarly, hereafter, without distinguishing between the two hinges 2b1 and 2b2, they will be simply referred to as "hinge 2b".
[0045] Next, refer to Figures 2A-2B and Figure 3 Hereinafter, an example of the structure of the drive device 10 according to an embodiment of the present invention will be described. Figure 2A and Figure 2B This is an enlarged view showing an example of a vehicle door 1 equipped with the drive device 10 according to an embodiment of the present invention. Figure 2A The image shows a perspective view of door 1. Figure 2B The image shows a side view of door 1. Figure 3 This is a diagram illustrating a structural example of the drive device 10 according to an embodiment of the present invention.
[0046] like Figure 2A As shown, the door 1 is provided with two types of hinges 2a and 2b and a drive unit 10. The two types of hinges 2a and 2b are separately arranged in the left-right direction of the door 1, that is, in the vehicle width direction. At least one of the drive unit 11 and the adjustment unit 60 is disposed between the two hinges 2b that are separately arranged in the vehicle width direction.
[0047] Furthermore, the number of hinges 2a and 2b is not limited to two; as long as there is one or more of each, it is acceptable. For example, if there is one hinge 2a and one hinge 2b, the hinges 2a and 2b are located at the center of the width direction of the door 1, and the drive device 10 is located at the center of the width direction of the door 1 or near the left or right edge of the lower door 1b.
[0048] [Structure of drive unit 10]
[0049] The drive unit 10 includes a drive unit 11, a housing 12, a guide unit 13, a cable 14, and a cable end 15.
[0050] [Structure of drive unit 11]
[0051] The drive unit 11 is a device that generates driving force to drive the lower door 1b by winding and unwinding the cable 14. The upper door 1a is driven by a PLG (Power Lift Gate) unit.
[0052] The drive unit 11 is located at a certain distance from the hinge 2b, that is, near the lower end of the lower door 1b and near the center of the lower door 1b in the left-right direction.
[0053] Furthermore, the location of the drive unit 11 is not limited to near the center of the lower door 1b in the left-right direction, but may also be near the edge of the lower door 1b in the left-right direction. However, when the lower door 1b is a door with a recessed portion extending from the inside of the vehicle to the outside of the vehicle, it is preferable to place the drive unit 11 in the space formed in the recess of the lower door 1b.
[0054] With this configuration, the recess of the lower door 1b can be effectively utilized, thus preventing the trunk space from becoming narrower due to the drive unit 11.
[0055] The drive unit 11 includes a motor and a power transmission unit such as a worm gear that transmits the rotation of the motor to the drum.
[0056] When the motor rotates in the forward direction, the rotational motion of the motor is transmitted to the drum via the power transmission unit, thereby causing the drum to rotate in the forward direction. In this case, the cable 14 is wound around the drum.
[0057] On the other hand, when the motor rotates in the reverse direction, the drum rotates in the reverse direction. In this case, cable 14 is released from the drum.
[0058] [Structure of Adjustment Section 60]
[0059] The adjustment unit 60 adjusts the degree of bending of the lower door 1b relative to the upper door 1a based on the driving force generated by the motor. Specifically, the adjustment unit 60 includes the aforementioned roller, the aforementioned drive unit 11, and the cable 14.
[0060] The adjustment section 60 winds the cable 14 by rotating the roller, thereby generating a tensile force to stretch the cable 14.
[0061] [Structure of cable 14]
[0062] The cable 14 transmits the tensile force that pulls the upper door 1a and the lower door 1b together based on the driving force generated by the drive unit 11. The cable 14 is, for example, a flexible cable made of twisted metal wire, resin fiber wire, etc.
[0063] One end of the cable 14 is connected to a roller on the drive unit 11. The other end of the cable 14 extends from the drive unit 11 toward the guide unit 13 and extends from the guide unit 13 to the cable end 15.
[0064] The portion of the cable 14 from the drive section 11 to the guide section 13 is covered by the housing 12 that protects the cable 14.
[0065] [Structure of cable end 15]
[0066] The cable end 15 is a metal component used to secure the end of the cable 14 to the upper door 1a. For example, the cable end 15 is secured near the lower end of the upper door 1a.
[0067] [Structure of guide section 13]
[0068] The guide section 13 is a component that movably supports the cable 14 while changing its guiding direction.
[0069] like Figure 3 As shown, the guide section 13 includes: a guide member 13a, for conveying, for example... Figure 2A The cable 14 shown; bracket 13b, which secures the guide 13a to Figure 2A The door 1 shown; and the stop 13c, when the door is... Figure 2A When the cable 14 is pulled out to the outside of the guide 13a and pulled into the guide 13a, it hits the cable end 15 and stops the movement of the cable end 15.
[0070] In the drive unit 10 configured in this way, the degree of bending of the lower door 1b relative to the upper door 1a can be reduced by winding the cable 14.
[0071] Furthermore, by extending cable 14, the degree of bending of the lower door 1b relative to the upper door 1a can be increased. Specific examples of the operation of the drive unit 10 will be described later.
[0072] Next, refer to Figures 4A to 11B The operation of the drive device 10 will be explained. Figures 4A to 11B This is a diagram used to illustrate the operation of the drive unit 10.
[0073] exist Figure 4A , Figure 5A , Figure 6A , Figure 7A , Figure 8A , Figure 9A , Figure 10A and Figure 11A The image shows the open / closed state of door 1. Figure 4B , Figure 5B , Figure 6B , Figure 7B , Figure 8B , Figure 9B , Figure 10B and Figure 11BThe image shows the operating state of the drive unit 10.
[0074] The following is a reference, firstly Figures 4A to 7B The operation of the drive unit 10 when the car door 1 is opened will be explained.
[0075] like Figure 4A As shown, when door 1 is fully closed, as Figure 4B As shown, the cable end 15 is located near the guide portion 13.
[0076] When door 1 is fully closed, the opening action is linked to that of the upper door 1a, such as... Figure 5B As shown, cable 14 is released. This reduces the tensile force required to close the upper door 1a and lower door 1b. Therefore, as... Figure 5A As shown, the lower door 1b droops due to gravity, and the degree of bending of the lower door 1b relative to the upper door 1a becomes greater.
[0077] When the upper door 1a is opened further, as Figure 6B As shown, cable 14 is further extended. Therefore, as Figure 6A As shown, the degree of bending of the lower door 1b relative to the upper door 1a becomes even greater.
[0078] In this way, by releasing the cable 14 in conjunction with the opening action of the upper door 1a, the degree of bending of the lower door 1b relative to the upper door 1a increases. As a result, even if there are obstacles such as people or walls in front of the door 1, it is possible to prevent the lower door 1b from contacting the obstacles.
[0079] After the upper door 1a is fully opened, when the cable 14 is wound up, as follows: Figure 7A As shown, relative to the flat portion at the end of the upper door 1a, the flat portion at the end of the lower door 1b is pressed down, reducing the degree of bending of the lower door 1b relative to the upper door 1a. The upper door 1a and the lower door 1b are held in a closed state, and door 1 is in a fully open state. Furthermore, when the distance from a wall surrounding door 1 to the vehicle is close, since door 1 cannot be fully opened, the amount of cable winding 14 can be reduced, allowing the lower door 1b to remain bent relative to the upper door 1a.
[0080] Next, refer to Figures 8A to 11B The operation of the drive unit 10 when closing the door 1 will be explained.
[0081] like Figure 8A As shown, with the door 1 fully open, the cable end 15 is located near the guide portion 13.
[0082] With door 1 closed when it is fully open, such as Figure 9B As shown, by extending cable 14, as Figure 9A As shown, depending on the amount of cable 14 extended, the lower door 1b droops due to gravity, and the degree of bending of the lower door 1b relative to the upper door 1a increases.
[0083] After a certain amount of cable 14 has been released, such as Figure 10A As shown, when the closing action of the upper door 1a begins, as Figure 10B As shown, the cable 14 is wound around the upper door 1a in conjunction with the closing action.
[0084] This increases the tensile force that pulls the upper door 1a and lower door 1b together. Furthermore, because the flat portion at the end of the lower door 1b is pressed down relative to the flat portion at the end of the upper door 1a, the degree of bending of the lower door 1b relative to the upper door 1a is reduced. Thus, by winding the cable 14 in conjunction with the closing action of the upper door 1a, contact between the lower end of the lower door 1b and the vehicle body can be prevented.
[0085] If the closing action of the upper door 1a continues and the cable 14 continues to be wound, as Figure 11A As shown, when the degree of bending of the lower door 1b relative to the upper door 1a is minimized, door 1 is in a fully closed state.
[0086] As explained above, in the drive unit 10 of this embodiment, a drive unit 11 is provided at a position spaced a certain distance from the hinge 2b, which serves as a connecting part. Furthermore, a cable 14 is used in the adjustment part 60 to change the degree of bending of the lower door 1b relative to the upper door 1a using the driving force generated by the motor of the drive unit 11b.
[0087] Therefore, when the lower door 1b is a door with a recessed portion extending from the inside of the vehicle to the outside, the drive unit 11 can be positioned within the space formed in the recess of the lower door 1b. This allows for effective utilization of the recess in the lower door 1b, thus preventing the trunk space from becoming narrower due to the drive unit 11.
[0088] In conventional drive units, the lower door of the center-folding tailgate is driven by a motor integrated into the hinge assembly. In this case, the motor's capacity is determined by specifications such as the door's weight; however, since higher-capacity motors tend to be larger, it's difficult to integrate the motor with the hinge. Consequently, the design freedom of the door may be limited.
[0089] In contrast, by placing the drive device 10 involved in this embodiment at any location on the lower side door 1b of the center-folding type, the design flexibility of the door 1 can be increased.
[0090] The following is for reference Figures 12 to 17 The following describes a modified example of the drive device 10 according to the embodiments of the present invention.
[0091] Figure 12 This is a diagram illustrating a first modified example of the drive device 10 according to an embodiment of the present invention. The drive device 10 according to the first modified example is a device that drives the door 1 by converting the rotational motion of a motor into linear motion.
[0092] The drive unit 10 according to the first modification includes a drive section 30 and a shaft section 31 housed in the drive section 30 and movable forward and backward relative to the drive section 30. The drive unit 10 according to the first modification generates a driving force to drive the upper door 1a or the lower door 1b by moving the shaft section 31 forward and backward relative to the drive section 30.
[0093] The lower end of the drive unit 30 is connected to the vicinity of the lower end of the lower door 1b via a first connecting part 30a. The first connecting part 30a is composed of a ball joint, a pin joint, a universal joint, etc.
[0094] The upper end of the shaft portion 31 is connected to the vicinity of the lower end of the upper door 1a via the second connecting portion 30b. The second connecting portion 30b is also composed of a ball joint, a pin joint, a universal joint, etc. The second connecting portion 30b is an example of a connecting portion that connects the upper door 1a and the shaft portion 31.
[0095] like Figure 12 As shown, the drive unit 30 is positioned at a certain distance from the second connecting part 30b. Furthermore, the drive unit 30 includes a motor, a planetary gear that transmits the rotation of the motor to the shaft part 31, a lead screw nut, and other power transmission parts.
[0096] [Structure of Adjustment Unit 60A]
[0097] Figure 12 The adjustment unit 60A shown increases or decreases the degree of bending of the lower door 1b relative to the upper door 1a based on the driving force generated by the motor. Specifically, the adjustment unit 60A includes the aforementioned power transmission unit and shaft 31.
[0098] The adjustment unit 60A extends and retracts the shaft 31 by converting the rotational motion of the motor into linear motion through the power transmission unit.
[0099] When the motor of the drive unit 30 rotates in the forward direction, the rotational motion of the motor is converted into linear motion through the power transmission unit and transmitted to the shaft 31. As a result, the shaft 31 moves forward. This forward movement is the movement of the shaft 31 from the inside of the drive unit 30 toward the outside of the drive unit 30. It also means that the shaft 31 extends from the inside of the drive unit 30 toward the outside of the drive unit 30.
[0100] As the shaft 31 moves forward, the lower door 1b hangs down, thus increasing the degree of bending of the lower door 1b relative to the upper door 1a.
[0101] On the other hand, when the motor of the drive unit 30 rotates in the opposite direction, the shaft 31 retracts. Retraction means that the shaft 31 moves from the outside of the drive unit 30 toward the inside of the drive unit 30. Retraction also means that the shaft 31 retracts from the outside of the drive unit 30 toward the inside of the drive unit 30.
[0102] As the shaft 31 moves backward, the flat portion at the end of the lower door 1b is pressed relative to the flat portion at the end of the upper door 1a, resulting in a smaller degree of bending of the lower door 1b relative to the upper door 1a.
[0103] As explained above, in the drive unit 10 of the first modified example, a drive unit 30 is provided at a certain distance from the second connecting part 30b, which serves as a connecting part. Furthermore, in the adjustment part 60A, a shaft part 31 that extends and retracts by utilizing the driving force generated by the motor of the drive unit 30 and connecting to the upper door 1a and the lower door 1b is used.
[0104] Therefore, when the lower door 1b is a door with a recess as described above, the drive unit 30 can be disposed in the space formed in the recess of the lower door 1b. This allows for effective utilization of the recess of the lower door 1b, thus preventing the trunk space from becoming narrower due to the drive unit 30. As a result, by applying the drive unit 10 according to the first modified example to the center-folding door 1, the design flexibility of the door 1 can be increased.
[0105] Figure 13 This is a diagram illustrating a second variation of the drive device 10 according to an embodiment of the present invention. The drive device 10 in the second variation is a device that drives the car door 1 using a linkage mechanism that transmits the rotational force of a motor.
[0106] The drive unit 10 involved in the second modification includes a drive unit 40, a first link 41 connected to the upper door 1a, and a second link 42 connected to the lower door 1b.
[0107] [Structure of drive unit 40]
[0108] The drive unit 40 is provided on the lower door 1b and is a device that generates a driving force to drive the lower door 1b by rotating the second link 42. The drive unit 40 includes a motor and a rotating shaft connected to the second link 42.
[0109] One end of the second link 42 is connected to the rotating shaft of the drive unit 40. One end of the first link 41 is rotatably connected to the other end of the second link 42. The other end of the first link 41 is rotatably connected to the upper door 1a.
[0110] The lower door 1b is rotatably connected to the upper door 1a via a hinge 50. Furthermore, the drive unit 40 is located at a certain distance from the hinge 50.
[0111] Hinge 50 is composed of ball joint, pin joint, universal joint, etc.
[0112] [Structure of Adjustment Section 60B]
[0113] Figure 13 The adjustment unit 60B shown increases or decreases the degree of bending of the lower door 1b relative to the upper door 1a based on the driving force generated by the motor. Specifically, the adjustment unit 60B includes the rotation shaft of the drive unit 40, the first link 41, and the second link 42 described above.
[0114] The adjustment unit 60B converts the rotational motion of the drive unit 40's rotating shaft into linear motion via the first link 41 and the second link 42, thereby changing the degree of bending of the lower door 1b relative to the upper door 1a.
[0115] Next, refer to Figures 14 to 17 The operation of the drive device 10 involved in the second modification will be explained below. Referring to... Figure 14 and Figure 15 The procedure for increasing the degree of bending of the lower door 1b relative to the upper door 1a will be explained. Then, refer to... Figure 16 and Figure 17 The action of reducing the degree of bending of the lower door 1b relative to the upper door 1a is explained.
[0116] Figure 14 and Figure 15 This diagram illustrates the action of increasing the degree of bending of the lower door 1b relative to the upper door 1a.
[0117] like Figure 14As shown, when the lower door 1b is bent to a lesser degree relative to the upper door 1a, when the motor in the drive unit 40 rotates in the forward direction, the rotational motion of the motor is transmitted to the second link 42 via the rotation shaft. Consequently, the second link 42 rotates about the rotation shaft in the first rotational direction 42a.
[0118] Therefore, as Figure 15 As shown, the angle between the first link 41 and the second link 42 increases, and the degree of bending of the lower door 1b relative to the upper door 1a also increases.
[0119] Figure 16 and Figure 17 This diagram illustrates the action of reducing the degree of bending of the lower door 1b relative to the upper door 1a.
[0120] like Figure 16 As shown, when the lower door 1b is bent to a greater degree relative to the upper door 1a, when the motor in the drive unit 40 rotates in the opposite direction, the rotational motion of the motor is transmitted to the second link 42 via the rotation shaft. As a result, the second link 42 rotates about the rotation shaft in a second rotational direction 42b, which is opposite to the first rotational direction 42a.
[0121] When the second link 42 continues to rotate in the second rotation direction 42b, as Figure 17 As shown, the angle between the first link 41 and the second link 42 becomes smaller, and the degree of bending of the lower door 1b relative to the upper door 1a also becomes smaller.
[0122] As explained above, in the drive unit 10 of the second modification, a drive unit 40 is provided at a certain distance from the hinges 50a and 50b. Furthermore, in the adjustment unit 60B, a first link 41 and a second link 42 are used to change the degree of bending of the lower door 1b relative to the upper door 1a using the driving force generated by the motor of the drive unit 40.
[0123] Therefore, even when the weight of the lower door 1b increases, the torque generated by the drive unit 40 can be easily changed by adjusting the lengths of the first link 41 and the second link 42, thus allowing the lower door 1b to be easily driven without increasing the size of the motor. As a result, by applying the drive unit 10 involved in the second modification to the center-folding door 1, the design freedom of the door 1 can be increased.
[0124] Furthermore, it should be understood that, for example, the following methods also fall within the scope of the present invention.
[0125] (1) A drive device drives a door, the door having an upper door and a lower door rotatably connected to the upper door, wherein the drive device includes: a drive unit disposed at a position spaced apart from the connection unit rotatably connecting the upper door and the lower door, and generating a drive force to drive the upper door or the lower door; and an adjustment unit that adjusts the degree of bending of the lower door relative to the upper door based on the drive force.
[0126] (2) The adjustment unit has a cable laid from the upper door to the lower door. When the degree of bending of the lower door relative to the upper door is increased, the cable is released. When the degree of bending of the lower door relative to the upper door is decreased, the cable is wound.
[0127] (3) The adjustment part has a shaft that is connected to and extends and retracts with the upper door and the lower door. When the degree of bending of the lower door relative to the upper door is increased, the shaft is extended; when the degree of bending of the lower door relative to the upper door is decreased, the shaft is retracted.
[0128] (4) The adjustment part has a first link connected to the upper door and a second link connected to the lower door. When the degree of bending of the lower door relative to the upper door is increased, the angle between the first link and the second link is increased. When the degree of bending of the lower door relative to the upper door is decreased, the angle is decreased.
[0129] (5) The connecting part includes two connecting parts that are separately arranged in the vehicle width direction, and at least one of the driving part and the adjusting part is arranged between the two connecting parts.
[0130] (6) The lower door is a door with a recessed portion extending from the inside of the vehicle toward the outside of the vehicle, and at least one of the drive portion and the adjustment portion is disposed in the space formed in the recessed portion.
[0131] The embodiments disclosed herein should be considered illustrative rather than limiting in all respects. The scope of the invention is defined not by the foregoing description but by the scope of the claims, and is intended to include equivalents to and all modifications within the scope of the claims.
[0132] The embodiments of the present invention have been described above. Furthermore, the above description is an example of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. That is, the description of the structure of the above-described device and the shape of each part is an example, and it is obvious that various modifications and additions can be made to these examples within the scope of the present invention.
[0133] Industrial availability
[0134] The drive device involved in this invention is useful as a device that can increase the degree of freedom in the design of vehicle doors.
[0135] Label Explanation
[0136] 1. Car door;
[0137] 1a Upper door;
[0138] 1b Lower side door;
[0139] 2a Hinge;
[0140] 2a1 hinge;
[0141] 2a2 hinge;
[0142] 2b hinge;
[0143] 2b1 hinge;
[0144] 2b2 hinge;
[0145] 10. Drive unit;
[0146] 11. Drive unit;
[0147] 12. Outer shell;
[0148] 13. Guiding Department;
[0149] 13a. Guide component;
[0150] 13b Bracket;
[0151] 13c Stop;
[0152] 14. Cables;
[0153] 15. Cable end;
[0154] 30. Drive unit;
[0155] 30a First connecting part;
[0156] 30b Second connecting part;
[0157] 31 Shaft section;
[0158] 40. Drive unit;
[0159] 41 First link;
[0160] 42. Second link;
[0161] 42a First rotation direction;
[0162] 42b Second rotation direction;
[0163] 50a hinge;
[0164] 50b hinge;
[0165] 60. Adjustment Department;
[0166] 60A Adjustment Section;
[0167] 60B Adjustment Section;
[0168] 100 vehicles;
[0169] 100a Opening.
Claims
1. A drive mechanism that drives a vehicle door, the vehicle door having an upper door rotatably connected to a vehicle body and a lower door rotatably connected to the upper door and having a recessed portion extending from the inside of the vehicle toward the outside of the vehicle, wherein, The drive device includes: A drive unit is disposed at a position spaced apart from the connection portion that rotatably connects the upper door and the lower door and is formed in the space of the recess of the lower door, and generates a driving force to drive the upper door or the lower door. and The adjustment unit includes a shaft extending from the drive unit to the connecting unit, connecting to the upper door and the lower door, and extending and retracting based on the drive force. By extending the shaft, the degree of bending of the lower door relative to the upper door is increased; by retracting the shaft, the degree of bending of the lower door relative to the upper door is decreased. The drive unit is located within the space regardless of the degree of bending, and the shaft makes bending possible when it protrudes from the space.
2. The driving device according to claim 1, wherein, The connecting portion includes two connecting portions that are separately arranged in the vehicle width direction. At least one of the driving part and the adjusting part is disposed between the two connecting parts.
3. The driving device according to claim 1, wherein, The connecting part is a ball joint, pin joint, or universal joint that connects the upper door to the shaft.