WO2019207396A1 - Vehicle door opening damping device - Google Patents
Vehicle door opening damping device Download PDFInfo
- Publication number
- WO2019207396A1 WO2019207396A1 PCT/IB2019/052945 IB2019052945W WO2019207396A1 WO 2019207396 A1 WO2019207396 A1 WO 2019207396A1 IB 2019052945 W IB2019052945 W IB 2019052945W WO 2019207396 A1 WO2019207396 A1 WO 2019207396A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- damping
- vehicle door
- segment
- opening
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle
- B60K28/12—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle responsive to conditions relating to doors or doors locks, e.g. open door
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
- E05C17/203—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide concealed, e.g. for vehicles
Definitions
- FIG. 7 is a fragmentary, partly-sectional side view illustrating a second embodiment of a vehicle door opening damping device according to the disclosure mounted between a vehicle body and a vehicle door, where the vehicle door is in a closed state;
- the rollers 43 roll to a middle damping position between the door-closing segment 325 and the damping segment 326, and are in increased frictional engagement with the rounded surface 333 of the screw 332 so as to avoid sudden, abrupt and complete opening of the vehicle door 12 and to inform the driver or passenger to observe the vehicle condition at the rear of the vehicle.
- the driver or passenger further pushes the vehicle door 12 with increased intensity to rotate the vehicle door 12 to the opening position, as shown in FIG. 6, where the rollers 43 roll over the rounded surface 333 so as to permit the vehicle door 12 to be fully opened .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A vehicle door opening damping device is mounted between a vehicle body and a vehicle door, and includes a swing arm swingably connected to the vehicle body and inserted into the vehicle door to be swung with the rotation of the vehicle door between the opening and closing positions, and a damping unit disposed on the vehicle door for producing a resistance against the swing movement of the swing arm. A resistance increasing mechanism is movably mounted on the swing arm and has a raised resistance increasing portion. The damping unit includes two rollers biased against and rollable on the swing arm to be in increased frictional engagement with the resistance increasing portion so as to generate the resistance so as to prevent a sudden, abrupt and complete opening of the vehicle door.
Description
VE H ICLE DOOR OPENING DAMPING DEVI CE
FIE LD
The disclosure relates to a vehicle safety device, and more particularly to a vehicle door opening damping device .
BACKGROUND
Dooring is a type of car accidents involving collision caused by the drivers or passengers exiting and opening the car door without checking the side mirror for incoming traffic, such as cyclist, motorcyclist, car or a jogging person, coming from the rear side. In most cases, the incoming traffic is incapable of reacting to the abrupt opening of the car door in time and, as a result, collides therewith. While motorists are always advised to check the surrounding before opening the car door, dooring may still happen, and may result in casualties and vehicle damages .
SUMMARY
Therefore, an object of the disclosure is to provide a vehicle door opening damping device that can alleviate at least one of the drawbacks of the prior art.
According to the disclosure, the vehicle door opening damping device is mountable on a vehicle. The vehicle has a vehicle body and a vehicle door pivotably connected to the vehicle body to be rotatable between opening and closing positions relative to the vehicle body. The
vehicle body has a first mounting portion adjacent to the vehicle door. The vehicle door has a second mounting portion adjacent to the first mounting portion. The damping device includes a swing unit and a damping unit.
The swing unit includes a mounting base which is securely mountable on the first mounting portion of the vehicle body, a swing arm which has a pivot end that is pivotably connected to the mounting base, and a swing end that is disposed to be insertable into the second mounting portion of the vehicle door and that is swung relative to the mounting base with the rotation of the vehicle door between the opening and closing positions. The swing arm has two major surfaces which extend between the pivot and swing ends and which are opposite to each other. Each of the major surfaces has a door-closing segment proximate to the pivot end, a door-opening segment proximate to the swing end, and a damping segment interposed between the door-closing and door-opening segments. The swing unit further includes a resistance increasing mechanism which is movably mounted on the damping segment of one of the major surfaces and which has a resistance increasing portion that projects outwardly of the damping segment.
The damping unit is disposed on the second mounting portion of the vehicle door for producing a resistance against the swing movement of the swing arm. The damping unit includes two rollers which are biased against and rollable on the major surfaces, respectively. The rollers
are rolled on the major surfaces from the door-closing segment to the damping segment with the rotation of the vehicle door from the closing position toward the opening position and are in increased frictional engagement with the resistance increasing portion of the resistance increasing mechanism so as to generate the resistance, and in turn to be rolled over the resistance increasing portion onto the door-opening segment when the vehicle door is in the opening position.
With the swing unit and the damping unit, during opening of the vehicle door, a resistance is produced against the rotation of the vehicle door relative to the vehicle body, which prevents a sudden, abrupt and complete opening of the vehicle door by a user.
BRIEF DESCRIPTION OF THE DRAWINGS
Other features and advantages of the disclosure will become apparent in the following detailed description of the embodiments with reference to the accompanying drawings, of which:
FIG. 1 is a fragmentary perspective view illustrating a first embodiment of a vehicle door opening damping device according to the disclosure mounted on a vehicle;
FIG. 2 is an exploded perspective view of the first embodiment ;
FIG. 3 is a fragmentary, partly-sectional top view illustrating the first embodiment mounted between a vehicle body and a vehicle door, where the vehicle door
is in a closed state;
FIG. 4 is a fragmentary, partly-sectional side view illustrating the first embodiment mounted between the vehicle body and the vehicle door, where the vehicle door is in a closed state;
FIG. 5 is a view similar to FIG. 4, illustrating a state when the vehicle door is being opened to a small rotational angle and the rotational motion of the vehicle door is damped by the first embodiment;
FIG. 6 is a view similar to FIG. 3, illustrating a state when the vehicle door is fully opened;
FIG. 7 is a fragmentary, partly-sectional side view illustrating a second embodiment of a vehicle door opening damping device according to the disclosure mounted between a vehicle body and a vehicle door, where the vehicle door is in a closed state;
FIG. 8 is a fragmentary, partly-sectional side view illustrating a third embodiment of a vehicle door opening damping device according to the disclosure mounted between a vehicle body and a vehicle door, where the vehicle door is in a closed state;
FIG. 9 is a fragmentary, partly-sectional side view illustrating a fourth embodiment of a vehicle door opening damping device according to the disclosure mounted between a vehicle body and a vehicle door, where the vehicle door is in a closed state.
DE TAILED DE SCRI PTION
Before the disclosure is described in greater detail, it should be noted that where considered appropriate, reference numerals or terminal portions of reference numerals have been repeated among the figures to indicate corresponding or analogous elements, which may optionally have similar characteristics.
Referring to FIG. 1, a first embodiment of a vehicle door opening damping device 2 is mountable on a vehicle 1, such as a car. The vehicle 1 has a vehicle body 11 and a vehicle door 12 pivotably connected to the vehicle body 11 to be rotatable between opening and closing positions relative to the vehicle body 11. The vehicle body 11 has a first mounting portion 111 adjacent to the vehicle door 12. The vehicle door 12 has a second mounting portion 121 adjacent to the first mounting portion 111.
With reference to FIGS. 2 to 4, the damping device 2 is mounted between the vehicle body 11 and the vehicle door 12, and includes a swing unit 3 and a damping unit 4.
The swing unit 3 includes a mounting base 31, a swing arm 32 and a resistance increasing mechanism 33. The mounting base 31 is configured to be securely mountable on the first mounting portion 111 of the vehicle body 11. The swing arm 32 is elongated to have a pivot end 321 that is pivotably connected to the mounting base 31, a damping portion 322 that is movably inserted into the second mounting portion 121 of the vehicle door 12, and a swing
end 323 that is enlarged and connected to a distal end of the damping portion 322 from the pivot end 321 and that is swung relative to the mounting base 31 with the rotation of the vehicle door 12 between the opening and closing positions. The damping portion 322 has two major surfaces 324 which are opposite to each other. Each of the major surfaces 324 has a door-closing segment 325 proximate to the pivot end 321, a door-opening segment 327 proximate to the swing end 323, and a damping segment 326 interposed between the door-closing and door-opening segments 325, 327. In this embodiment, the damping segment 326 of one of the major surfaces 324 is configured to be gradually inclined toward the other major surface 324 from an end adjacent to the door-closing segment 325 to an end adjacent to the door-opening segment 327.
The resistance increasing mechanism 33 is movably mounted on the damping segment 326 of the major surfaces 324 at the end connected to the door-closing segment 325 to produce a variable resistance against the swing movement of the swing arm 32. Specifically, the resistance increasing mechanism 33 has a resistance increasing portion that projects outwardly of the damping segment 326. In this embodiment, the resistance increasing mechanism 33 has a screw hole 331 formed in and extending through the swing arm 32 to communicate the damping segments 326 of the major surfaces 324, and a screw 332 threadedly engaged in the screw hole 331. The screw 332
is in the form of a rounded-tip set screw which has a rounded surface 333 at a tip end thereof to project outwardly of the damping segment 326 for serving as the resistance increasing portion. The screw 332 has a hexagonal hole 334 formed in a tail end thereof for insertion of a screw driver to carry out the threaded movement of the screw 332 relative to the screw hole 331. In this embodiment, the screw hole 331 extends and is inclined toward the door-opening segment 327 such that the screw 332 is inclined relative to the damping portion 322.
The damping unit 4 is disposed on the second mounting portion 121 of the vehicle door 12 for producing the resistance against the swing movement of the swing arm 32. The damping unit 4 includes a mounting bracket 41 which is disposed in the second mounting portion 121 and which has an accommodating space with a through hole 411 for extension of the swing arm 32 into the accommodating space, two roller seats 42 which are movably disposed in the accommodating space of the mounting bracket 41 and respectively at two opposite sides of the swing arm 32, two rollers 43 which are rollably mounted on the roller seats 42, respectively, and two biasing members 44 which are disposed in the accommodating space of the mounting bracket 41 to bias the rollers 43 toward the swing arm 32. Hence, the rollers 43 are biased against and rollable on the major surfaces 324, respectively, of the swing arm
32.
The damping unit 4 is moved with the rotation of the vehicle door 12 relative to the vehicle body 11 between the opening and closing positions to swing the swing arm 32 relative to the mounting base 31. The rollers 43 are rolled along the major surfaces 324. In the closing position of the vehicle door 12 as shown in FIGS. 3 and 4, the rollers 43 are biased against the door-closing segments 325. When a driver or passenger pushes the vehicle door 12 to rotate the vehicle door 12 relative to the vehicle body 11 for about 15 degrees, the rollers 43 roll to a middle damping position between the door-closing segment 325 and the damping segment 326, and are in increased frictional engagement with the rounded surface 333 of the screw 332 so as to avoid sudden, abrupt and complete opening of the vehicle door 12 and to inform the driver or passenger to observe the vehicle condition at the rear of the vehicle. The driver or passenger further pushes the vehicle door 12 with increased intensity to rotate the vehicle door 12 to the opening position, as shown in FIG. 6, where the rollers 43 roll over the rounded surface 333 so as to permit the vehicle door 12 to be fully opened .
In this embodiment, with the threaded movement of the screw 332 for adjusting the position of the rounded surface 333 of the screw 332 projecting relative to the corresponding damping segment 326, the resistance
produced thereby is varied as required. Moreover, with the damping segment 326 and the resistance increasing mechanism 33 inclined relative to the lengthwise direction of the swing arm 32, the rollers 43 are rolled on the major surfaces 324 with a larger resistance during the rotation of the vehicle door 12 to the opening position, and with a smaller resistance during the rotation of the vehicle door 12 to the closing position.
With reference to FIG. 7, in a second embodiment, the resistance increasing mechanism 33 has a flexible plate
335 securedly mounted on the corresponding damping segment 326 to abut against the rounded surface 333 of the screw 332. The flexible plate 335 is configured to be deformed and curved by the rounded surface 333 of the screw 332 with a threaded movement of the screw 332 relative to the screw hole 331 to form a raised surface
336 for serving as the resistance increasing portion. The flexible plate 335 is gradually inclined toward the other major surface 324 from the raised surface 336 to the door-closing segment 325 and to the door-opening segment 326. The raising amount of the raised surface 336 is varied with the threaded movement of the screw 332 to adjust the resistance .
With reference to FIG. 8, in a third embodiment, the resistance increasing mechanism 33 has a bump plate 337 rotatably mounted on the corresponding damping segment 326 by an end portion of the screw 332 that projects
outwardly of the corresponding damping segment 326, and at least one adjusting washer 338 sleeved around the end portion of the screw 332 and interposed between the corresponding damping segment 326 and the bump plate 337. The bump plate 337 is configured to have a raised surface 339 which is opposite to the damping segment 326 for serving as the resistance increasing portion and which is moved relative to the damping segment 326 with a threaded movement of the screw 332 relative to the screw hole 331. The raised surface 339 is inclined relative to the corresponding damping segment 326 to the door-closing segment 325 and to the door-opening segment 327. The raising amount of the raised surface 339 is varied with the threaded movement of the screw 332 and by changing the amount of the adjusting washer (s) 338 to adjust the resistance .
With reference to FIG. 9, in a fourth embodiment, the damping unit 4 also includes two adjusting screws 45 which are disposed to adjust a biasing force of the biasing members 44 so as to adjust the biasing force of the rollers against the major surfaces 324 of the swing arm 32, respectively .
As illustrated, with the swing unit 3 and the damping unit 4, a resistance is produced against the rotation of the vehicle door 12 relative to the vehicle body 11 during opening the vehicle door 12, which prevents a sudden, abrupt and complete opening of the vehicle door 12 by a
user to inform the user to observe the vehicle condition at the rear of the vehicle. Moreover, the resistance is adjustable as required to suit for a variety of users.
While the disclosure has been described in connection with what are considered the exemplary embodiments, it is understood that this disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims
1. A vehicle door opening damping device mountable on a vehicle which has a vehicle body and a vehicle door pivotably connected to the vehicle body to be rotatable between opening and closing positions relative to the vehicle body, the vehicle body having a first mounting portion adjacent to the vehicle door, the vehicle door having a second mounting portion adjacent to the first mounting portion, said damping device comprising: a swing unit including a mounting base which is securely mountable on the first mounting portion of the vehicle body, a swing arm which has a pivot end that is pivotably connected to said mounting base, and a swing end that is disposed to be insertable into the second mounting portion of the vehicle door and that is swung relative to said mounting base with the rotation of the vehicle door between the opening and closing positions, said swing arm having two major surfaces which extend between said pivot and swing ends and which are opposite to each other, each of said maj or surfaces having a door-closing segment proximate to said pivot end, a door-opening segment proximate to said swing end, and a damping segment interposed between said door-closing and door-opening segments, said swing unit further including a resistance increasing mechanism which is movably mounted on said
damping segment of one of said major surfaces and which has a resistance increasing portion that projects outwardly of said damping segment; and
a damping unit disposed on the second mounting portion of the vehicle door for producing a resistance against the swing movement of said swing arm, said damping unit including two rollers which are biased against and rollable on said major surfaces, respectively, said rollers being rolled on said major surfaces from said door-closing segment to said damping segment with the rotation of the vehicle door from the closing position toward the opening position and being in increased frictional engagement with said resistance increasing portion of said resistance increasing mechanism so as to generate the resistance, and in turn to be rolled over said resistance increasing portion onto said door-opening segment when the vehicle door is in the opening position.
2. The vehicle door opening damping device as claimed in Claim 1, wherein said resistance increasing mechanism has a screw hole formed in and extending through said swing arm to communicate said damping segments of said major surfaces, and a screw threadedly engaged in said screw hole and in form of a rounded-tip set screw which has a rounded surface at a tip end thereof to project outwardly of said damping segment for serving as said resistance increasing portion.
3. The vehicle door opening damping device as claimed in Claim 1, wherein said resistance increasing mechanism has a screw hole formed in and extending through said swing arm to communicate said damping segments of said major surfaces, a screw threadedly engaged in said screw hole to have a tip end projecting outwardly of a corresponding one of said damping segments, and a flexible plate securedly mounted on said corresponding damping segment to abut against said tip end of said screw, said flexible plate being configured to be deformed and curved by said tip end of said screw with a threaded movement of said screw relative to said screw hole to form a raised surface for serving as said resistance increasing portion.
4. The vehicle door opening damping device as claimed in Claim 1, wherein said resistance increasing mechanism has a screw hole formed in and extending through said swing arm to communicate said damping segments of said major surfaces, a screw threadedly engaged in said screw hole to have an end portion projecting outwardly of a corresponding one of said damping segments, a bump plate rotatably mounted on said corresponding damping segment by said end portion of said screw, and at least one adjusting washer sleeved around said end portion of said screw and interposed between said corresponding damping segment and said bump plate,
said bump plate being configured to have a raised surface which is opposite to said damping segment for serving as said resistance increasing portion and which is moved relative to said damping segment with a threaded movement of said screw relative to said screw hole.
5. The vehicle door opening damping device as claimed in any one of Claims 1 to 4, wherein said damping unit includes two adjusting screws which are disposed to adjust a biasing force of said rollers against said major surfaces of said swing arm, respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107205531U TWM565142U (en) | 2018-04-27 | 2018-04-27 | Slow door-opening device for vehicle |
| TW107205531 | 2018-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019207396A1 true WO2019207396A1 (en) | 2019-10-31 |
Family
ID=63961165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2019/052945 Ceased WO2019207396A1 (en) | 2018-04-27 | 2019-04-10 | Vehicle door opening damping device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7160489B2 (en) |
| TW (1) | TWM565142U (en) |
| WO (1) | WO2019207396A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909040B (en) * | 2022-05-05 | 2024-04-02 | 云浮技师学院 | Anti-collision vehicle door limiter for opening door of vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0960386A (en) * | 1995-08-21 | 1997-03-04 | Kanto Auto Works Ltd | Car door opening limit device |
| CN1530512A (en) * | 2003-03-12 | 2004-09-22 | 徐四清 | Vehicle door limiter |
| CN201401091Y (en) * | 2009-04-30 | 2010-02-10 | 比亚迪股份有限公司 | door stopper |
| WO2012001303A1 (en) * | 2010-06-30 | 2012-01-05 | Mgi Coutier | Doorstop device for a motor vehicle |
| CN207017828U (en) * | 2017-03-17 | 2018-02-16 | 南京林业大学 | A kind of door-open stopper being delayed using damping force |
| CN208430904U (en) * | 2018-05-04 | 2019-01-25 | 陈柏州 | Slow opening device for vehicle door |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6215412Y2 (en) * | 1980-04-30 | 1987-04-18 | ||
| JPS5715784A (en) * | 1980-07-01 | 1982-01-27 | Shiraki Kinzoku Kogyo Kk | Door check |
| JPS6311269Y2 (en) * | 1980-07-24 | 1988-04-01 | ||
| DE3546009C2 (en) * | 1985-12-24 | 1995-04-27 | Siegfried Klingenburg | Device for locking motor vehicle doors in a partially open assembly position |
| JPH038277U (en) * | 1988-09-23 | 1991-01-25 | ||
| US8695164B2 (en) | 2012-05-30 | 2014-04-15 | GM Global Technology Operations LLC | Check link assembly with adjustable detent feature |
| EP2682547A1 (en) * | 2013-03-08 | 2014-01-08 | Metalsa Automotive GmbH | Door stay for motor vehicles |
| JP2020180487A (en) | 2019-04-25 | 2020-11-05 | 三菱自動車工業株式会社 | Vehicle door check device |
-
2018
- 2018-04-27 TW TW107205531U patent/TWM565142U/en unknown
-
2019
- 2019-04-10 WO PCT/IB2019/052945 patent/WO2019207396A1/en not_active Ceased
-
2020
- 2020-06-02 JP JP2020096004A patent/JP7160489B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0960386A (en) * | 1995-08-21 | 1997-03-04 | Kanto Auto Works Ltd | Car door opening limit device |
| CN1530512A (en) * | 2003-03-12 | 2004-09-22 | 徐四清 | Vehicle door limiter |
| CN201401091Y (en) * | 2009-04-30 | 2010-02-10 | 比亚迪股份有限公司 | door stopper |
| WO2012001303A1 (en) * | 2010-06-30 | 2012-01-05 | Mgi Coutier | Doorstop device for a motor vehicle |
| CN207017828U (en) * | 2017-03-17 | 2018-02-16 | 南京林业大学 | A kind of door-open stopper being delayed using damping force |
| CN208430904U (en) * | 2018-05-04 | 2019-01-25 | 陈柏州 | Slow opening device for vehicle door |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7160489B2 (en) | 2022-10-25 |
| JP2021067171A (en) | 2021-04-30 |
| TWM565142U (en) | 2018-08-11 |
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