CN-122014085-A - Vehicle door opening and closing device

CN122014085ACN 122014085 ACN122014085 ACN 122014085ACN-122014085-A

Abstract

Provided is a vehicle door opening/closing device capable of improving the degree of freedom of the arrangement of a door driving device. The door opening/closing device is provided with a door driving device (50) which applies a torque to the link arm to rotate the link arm relative to the vehicle body. The door driving device (50) is provided with a driving drum (90) driven by a motor, a driven drum (100) disposed away from the driving drum (90), cables (171, 172) wound around the driving drum (90) and the driven drum (100) and transmitting power from the driving drum (90) to the driven drum (100), and a transmission unit (190) for applying torque to the first link arm based on the power transmitted from the driven drum (100).

Inventors

KAJINO YUSUKE
WEI YANGJIE

Assignees

株式会社爱信

Dates

Publication Date: 20260512
Application Date: 20251104
Priority Date: 20241111

Claims (5)

1. A vehicle door opening/closing device is applied to a vehicle provided with a vehicle body and a door, wherein the vehicle body is provided with a door opening part, the door opens and closes the door opening part, and the vehicle door opening/closing device comprises: A link arm having a base end portion rotatably coupled to the vehicle body and a tip end portion rotatably coupled to the door, and A door driving device that applies a torque to the link arm to rotate the link arm with respect to the vehicle body, The door driving device includes: A drive drum driven by the motor; a driven drum disposed away from the drive drum; a cable wound around the driving drum and the driven drum and transmitting power from the driving drum to the driven drum, and And a transmission unit that applies the torque to the link arm based on the power transmitted from the driven drum.
2. The vehicle door opening and closing device according to claim 1, wherein, The diameter of the driving drum is smaller than the diameter of the driven drum.
3. The vehicle door opening and closing device according to claim 1 or 2, wherein, The door driving device has a tensioner adjusting the slack of the cable, The tensioner is assembled to at least one of the drive drum and the driven drum.
4. The vehicle door opening and closing device according to claim 3, wherein, The driven drum has a first drum and a second drum which are aligned in an extending direction of a rotation axis of the driven drum and around which the cable is wound, The first drum winds the cable and feeds out the cable from the second drum in the case where the driven drum rotates in a first driven direction, and on the other hand, feeds out the cable from the first drum and winds the cable from the second drum in the case where the driven drum rotates in a second driven direction that is the opposite direction of the first driven direction, The tensioner has a force applying member that applies force to the first drum in the first driven direction and applies force to the second drum in the second driven direction.
5. The vehicle door opening and closing device according to claim 1, wherein, The rotational axis of the drive drum and the rotational axis of the driven drum are in a torsional positional relationship, The drive drum is disposed offset from the rotation axis of the driven drum in the width direction of the vehicle.

Description

Vehicle door opening and closing device Technical Field The present invention relates to a vehicle door opening/closing device. Background Patent document 1 describes a vehicle door opening/closing device for connecting a vehicle and a door. The vehicle door opening/closing device is provided with a first link arm and a second link arm, the base end of which is rotatably connected to the vehicle body and the tip of which is rotatably connected to the door, and a door driving device for applying power to the first link arm for opening/closing the door. The first link arm and the second link arm extend in the vertical direction with respect to the rotation axis of the vehicle body, and the first link arm and the second link arm extend in the vertical direction with respect to the rotation axis of the door. The vehicle body, the door, the first link arm and the second link arm form a four-section link mechanism. The door driving device applies a torque to the first link arm that rotates the first link arm about an axis relative to the vehicle body. The door driving device rotates the first link arm to open or close the door. Prior art literature Patent literature Patent document 1, japanese patent application laid-open No. 2022-92327. Disclosure of Invention Technical problem to be solved by the invention In the vehicle door opening/closing device described above, the door driving device is mounted on the periphery of the base end portion of the first link arm. Therefore, in the vehicle door opening/closing device described above, it is desirable to improve the degree of freedom in arrangement of the door driving device. Technical means for solving the technical problems The vehicle door opening/closing device for solving the above-described problems is applied to a vehicle provided with a vehicle body having a door opening portion and a door for opening/closing the door opening portion, and is provided with a link arm whose base end portion is rotatably coupled to the vehicle body and whose tip end portion is rotatably coupled to the door, and a door driving device for applying a torque for rotating the link arm relative to the vehicle body to the link arm, the door driving device having a drive drum driven by a motor, a driven drum disposed apart from the drive drum, a cable wound around the drive drum and the driven drum and transmitting power from the drive drum to the driven drum, and a transmitting portion for applying the torque to the link arm based on the power transmitted from the driven drum. ADVANTAGEOUS EFFECTS OF INVENTION The vehicle door opening/closing device can improve the degree of freedom of the arrangement of the door driving device. Drawings Fig. 1 is a perspective view showing a schematic structure of a vehicle provided with a door opening/closing device. Fig. 2 is a perspective view showing a schematic structure of the vehicle of fig. 1. Fig. 3 is a side view of the vehicle of fig. 1. Fig. 4 is a perspective view of the door opening and closing device of fig. 1. Fig. 5 is a perspective view of the door opening and closing device of fig. 1. Fig. 6 is an exploded perspective view of the door opening and closing device of fig. 1. Fig. 7 is an exploded perspective view of the door opening and closing device of fig. 1. Fig. 8 is an exploded perspective view of the door opening and closing device of fig. 1. Fig. 9 is an exploded perspective view of a driven drum of the door opening and closing device of fig. 1. Fig. 10 is a cross-sectional view of a driven drum of the door opening and closing device of fig. 1. Fig. 11 is a cross-sectional view taken along line 11-11 of fig. 10. Fig. 12 is a sectional view taken along line 12-12 of fig. 10. Fig. 13 is a perspective view showing a structure related to power transmission of the door opening/closing device of fig. 1. Fig. 14 is a perspective view showing a structure related to power transmission of the door opening/closing device of fig. 1. Fig. 15 is a partial plan view of the door opening and closing device of fig. 1. Fig. 16 is a perspective view of a door opening/closing device according to a modification. Fig. 17 is a partially exploded perspective view of the door opening and closing device of fig. 16. Fig. 18 is a partial plan view of the door opening and closing device of fig. 16. Symbol description Vehicle; vehicle body; the door opening part, 30, door, 40X, vehicle door opening and closing device, 41, first link arm (link arm), 42, second link arm, 50X, door driving device, 60, actuator, 61, motor, 90, driving drum, 100, driven drum, 110, spindle, 120, first drum, 130, second drum, 160, spring (tensioner, biasing member), 171, first cable (cable), 172, second cable (cable), 190, transmission part, 11, first driving direction, 12, second driving direction, 21, first driven direction, 22, second driven direction. Detailed Description An embodiment of a vehicle provided with a vehicle door opening/closing device (hereinafter referred to a