Vehicle door open structure

Abstract

The present invention relates to a door opening structure of a vehicle, and more preferably, as an embodiment of the present invention, the door opening structure of a vehicle comprises a first door unit including one or more first doors located on at least one side of the vehicle, a second door unit including a second door located adjacent to the first door, a locking unit positioned to selectively fix the first door unit and the second door unit, and a control unit configured to fix the locking unit so that the first door unit and the second door unit open as a whole, or to release the locking unit so that the first door unit and the second door unit open independently.

Description

Technology Field

[0001] The present invention relates to a door opening structure of a vehicle, and more preferably, to a door opening structure of a vehicle that provides a second door that performs a lamp function and allows a first door unit and a second door unit to be selectively connected and opened. Background Technology

[0003] There are various types of car doors, but examples include the swing type, which is mainly applied to passenger cars; the sliding type, which is primarily applied to mid-sized vans; and the hatchback type, which is mainly applied to the tail doors of vans and RVs.

[0004] Meanwhile, Purpose Built Vehicles (PBVs) are emerging as a future form of mobility that extends living spaces. For example, if a PBV consisting of a shoe store or a clothing store docks at a hub, the hub becomes a shopping center. The potential for expanding the functions and design of PBVs according to their purpose is significant. PBVs are a new form of mobility that is neither public transportation like buses nor private passenger cars; they serve as flexible spaces where the purpose of the hub itself changes depending on the type of PBV docked there.

[0005] To maximize the utility of such PBVs, a diversified door opening structure is required depending on the surrounding environment, and furthermore, a bottom door opening structure suitable for the situation is required.

[0006] In addition, in the case of a conventional door equipped with a door ramp, a separate space is required on the underfloor for the ramp to be inserted for the ramp storage space configured separately from the door. Prior art literature

[0008] Patent Document 1: Republic of Korea Published Patent No. 10-2009-0043127 The problem to be solved

[0009] The present invention was devised to solve the above-mentioned problems, and the purpose of the present invention is to provide a second door that can be opened in various ways.

[0010] In addition, the present invention is intended to provide a structure that can be selectively opened and closed with the first door so that the second door can be selectively rotated open to provide an inclined surface up to the rear of the vehicle body to perform a ramp function.

[0011] The objectives of the present invention are not limited to those mentioned above, and other unmentioned objectives of the present invention may be understood from the following description and may become more clearly known from the embodiments of the present invention. Furthermore, the objectives of the present invention may be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0013] A vehicle door opening structure for achieving the purpose of the present invention described above includes the following configuration.

[0014] In one embodiment of the present invention, a door opening structure for a vehicle is provided, comprising: a first door unit including a first door located on at least one side of the vehicle; a second door unit including a second door located adjacent to the first door; a locking unit positioned to selectively fix the first door unit and the second door unit; and a control unit configured to fix the locking unit so that the first door unit and the second door unit open as a whole, or release the locking unit so that the second door unit opens independently of the first door unit.

[0015] In addition, the above-described first door unit further includes a driving unit that is connected to the first door and performs longitudinal movement; thereby providing a door opening structure of a vehicle.

[0016] In addition, the above driving unit provides a door opening structure of a vehicle further comprising: a spindle located on the vehicle body and having one end connected to the rear surface of the first door; and a fixing part configured to fix the spindle to the first door.

[0017] In addition, a door opening structure of a vehicle is provided such that when the driving unit is driven while the locking unit is fixed, the first door and the second door are configured to open as a single unit.

[0018] In addition, a door opening structure of a vehicle is provided such that when the driving unit is driven while the locking unit is released, the first door is configured to open independently.

[0019] Additionally, the second door unit further comprises: a guide located at one end of the second door and configured to allow the second door to move along the opening direction of the first door unit; and a rotating part located adjacent to at least a part of the guide and configured to apply rotational force to the second door when the locking unit is released so that the second door rotates open relative to the guide. This provides a door opening structure for a vehicle.

[0020] In addition, the control unit provides a door opening structure of a vehicle configured such that power is applied to the rotating part in the unlocked state of the locking unit, so that the second door is rotated open independently of the first door based on the guide.

[0021] Additionally, the locking unit provides a door opening structure of a vehicle further comprising: a housing located in the second door unit; a rod portion located in the housing and selectively protruding at a position adjacent to the first door; and an insertion portion located in the first door so that the rod portion is selectively retracted.

[0022] In addition, the control unit provides a vehicle door opening structure in which, when the first door and the second door are opened together, the load portion is controlled to be drawn into the insert portion. Effects of the invention

[0024] The present invention can achieve the following effects through the combination and usage relationship of the embodiments described above and the configuration described below.

[0025] The present invention is configured so that the second door can perform a lamp function and is selectively opened, thereby having the effect of increasing the design efficiency of the underfloor.

[0026] In addition, the present invention provides a second door having various types of opening structures, thereby having the effect of improving user convenience.

[0027] In addition, the present invention provides a second door configured to open at the bottom, thereby providing an auxiliary step for the disabled and improving the convenience of boarding and alighting. Brief explanation of the drawing

[0029] FIG. 1a illustrates a door opening structure of a vehicle including a door located on the side as an embodiment of the present invention. FIG. 1b illustrates the rear view of a door opening structure of a vehicle including a door located on the side, as an embodiment of the present invention. FIG. 1c illustrates a side cross-sectional view of AA in which a second door is fastened, as an embodiment of the present invention. FIG. 1d illustrates a side cross-sectional view of the BB area adjacent to the second door as an embodiment of the present invention. FIG. 2 illustrates the coupling relationship of a driving unit as an embodiment of the present invention. FIG. 3a illustrates an embodiment of the present invention in which the first door and the second door are opened as a single unit. FIG. 3b illustrates a side cross-sectional view of the BB with the second door open, as an embodiment of the present invention. FIG. 4a illustrates an embodiment of the present invention in which the first door is in an open state. FIG. 4b illustrates an embodiment of the present invention in which the first door and the second door are each opened independently. FIG. 5a illustrates a configuration diagram of a locking unit as an embodiment of the present invention. FIG. 5b illustrates a DD side cross-sectional view of a locking unit as an embodiment of the present invention. FIG. 6a illustrates a CC side cross-sectional view of a rotating part as an embodiment of the present invention. FIG. 6b illustrates a side cross-sectional view of a rotating part as an embodiment of the present invention. Specific details for implementing the invention

[0030] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments below. These embodiments are provided to more completely explain the present invention to those with average knowledge in the art.

[0031] Additionally, terms such as "...part," "...unit," and "...module" as described in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software.

[0032] In addition, the classification of the names of components in this specification as "first," "second," etc., is intended to distinguish them due to identical names, and is not necessarily limited to that order in the following description.

[0033] Additionally, in this specification, the names of the components, 'door unit' and 'door,' may refer to substantially the same component, or 'door' may be used as a sub-concept of 'door unit.' The door unit may include a frame formed on the outer side of the door and includes not only the door but also all components that can move integrally with the door.

[0034] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In describing with reference to the attached drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0035] The present invention relates to a door opening structure of a vehicle, and provides a second door unit (200) of a vehicle capable of performing a lamp function, thereby providing a door opening structure of a vehicle that can be opened integrally with or independently of a first door unit (100).

[0036] Furthermore, the first door (110) of the first door unit (100) of the present invention is positioned above the second door (210) of the second door unit (200), and the second door (210) is configured in a position adjacent to the rear surface of the vehicle body (600). In one embodiment, the first door unit (100) and the second door unit (200) located on one side of the vehicle will be described below.

[0037] FIG. 1a illustrates a front view of a first door unit (100) and a second door unit (200) located on one side of a vehicle as an embodiment of the present invention, and FIG. 1b illustrates a rear view of the first door unit (100) and the second door unit (200).

[0038] As described, the first door unit (100) is positioned including the first door (110) and is located on at least a portion of the upper side of the vehicle to surround at least a portion of the vehicle opening, and the second door unit (200) is configured to be located at the bottom of the first door (110). The second door unit (200) includes a second door (210) located at the bottom of the first door (110) and configured to surround the remaining opening of the vehicle opening.

[0039] The first door unit (100) may be configured to include a driving unit (400) that is connected to the first door (110) and applies driving force in the direction in which the first door (110) slides, and a fixing part (420) to which the driving unit (400) and the first door (110) are connected.

[0040] In one embodiment of the present invention, the driving unit (400) may be composed of a spindle (410), and one end of the spindle (410) is positioned at the first door (110) and the other end is fixed to one end of the interior of the vehicle. The one end of the spindle (410) that is fastened to the fixing part (420) includes a locking projection (430) and is configured so that the first door (110) moves integrally in the direction of movement of the spindle (410) while fixed to the fixing part (420).

[0041] The first door (110) is configured to be opened by slidingly inserting it into the space between the vehicle body (600) and the vehicle interior (800) along the side of the vehicle adjacent to the first door (110) by a driving unit (400), and in one illustrated embodiment, includes a bidirectional opening structure. More preferably, the first door (110) is configured such that at least a portion of the first door (110) is located in the space between the vehicle body (600) and the vehicle interior (800) in the open and closed states.

[0042] The second door unit (200) includes a second door (210), and the second door (210) is configured to be positioned adjacent to the lower surface of the first door (110). The side of the second door (210) may be positioned adjacent to the space between the vehicle body (600) and the vehicle interior (800), and when opened integrally with the first door (110), the second door (210) may be configured to slide open in the same direction as the first door (110). Furthermore, when the fixing of the first door unit (100) and the second door unit (200) is released, the second door (210) may be independently rotated and opened relative to the lower end of the vehicle body (600).

[0043] That is, the second door (210) can be separated from the vehicle body (600) located on both sides of the second door (210) in a closed state and can move independently so that its upper end rotates and protrudes toward the front of the vehicle body (600) relative to the lower part of the vehicle body.

[0044] The second door (210) rotates open in response to the vehicle's opening conditions or user request to provide an inclined surface having a predetermined angle with the vehicle's underfloor. In one embodiment of the present invention, when the second door (210) is opened independently, it can function as a ramp.

[0045] The first door unit (100) and the second door unit (200) can be fixed to each other and moved as a single unit through a locking unit (300), and when the locking unit (300) is released, the first door unit (100) and the second door unit (200) are configured to perform independent movements.

[0046] The first door (110) is configured to be connected to a driving unit (400) that extends from the vehicle body (600) and applies driving force to the first door (110). In one embodiment of the present invention, the driving unit (400) may be configured to be a spindle (410) located in the direction in which the first door (110) moves. More preferably, the driving unit (400) may be configured to fix the driving unit (400) and the first door unit (100) through a fixing part (420) located on the back of the first door (110). The fixing part (420) may be configured in the form of a clamp, and in one embodiment of the present invention, one end of the spindle (410) may be configured to be connected to the clamp.

[0047] The control unit (500) can control the driving force of the driving unit (400) located in the first door unit (100), and can also control the driving of the locking unit (300) located between the first door unit (100) and the second door unit (200).

[0048] The second door unit (200) includes a second door (210) that extends and is located at the bottom of the first door (110), a guide part (220) that is connected to the second door (210) and is configured in a direction substantially corresponding to the direction of movement of the drive unit (400) between the vehicle body (600) and the interior material (800), and a rotating part (230) configured to come into contact with the second door (210) and to perform independent rotational opening of the second door (210) when the second door (210) is released from the connection with the first door (110).

[0049] When the first door (110) and the second door (210) are released from locking through the locking unit (300), the control unit (500) drives the rotation unit (230) in response to a user request, so that the second door (210) is configured to rotate open independently of the first door unit (100) with respect to the guide unit (220).

[0050] The second door (210), which rotates open, is configured so that the end of the second door (210) contacts the ground, thereby providing a predetermined sloped area from the ground to the vehicle interior underfloor (700) to the occupant. That is, the independently opened second door (210) is configured to perform a ramp function along the vehicle body floor surface.

[0051] FIG. 1c illustrates the AA cross-section of FIG. 1b, and FIG. 1d illustrates the BB cross-section of FIG. 1b.

[0052] As illustrated in FIG. 1c, in a fully closed state, the lower portion of the second door (210) is configured to wrap around at least a portion of the guide portion (220), so that the second door (210) is positioned integrally with the first door (110) in the opening of the vehicle. The guide portion (220) is positioned between the outermost surface of the vehicle body (600) and the interior trim (800) of the vehicle, and is positioned to extend in the direction in which the second door (210) opens. More preferably, the guide portion (220) is configured to be at least longer than the opening length of the second door (210). Furthermore, the guide portion (220) is configured to extend in a direction substantially corresponding to the direction of movement of the drive unit (400) connected to the first door (110).

[0053] In summary, when the second door (210) is moved integrally with the first door unit (100) by the locking unit (300), it is configured to move along the length direction of the guide portion (220) along the guide portion (220), which is located on the lower surface of the second door (210) and configured to wrap around at least a part of the second door (210). That is, the guide portion (220) is configured to extend in a direction substantially corresponding to the direction in which the first door unit (100) slides open, and is located at the bottom of the second door (210) to guide the second door (210) in the direction in which it slides open. The guide portion (220) may be configured to be located at the end of the frame of the vehicle body (600), guide the longitudinal movement of the second door (210) which moves integrally with the first door (110), and is configured so that the guide portion (220) is positioned as a central axis that moves independently of the first door (110) and rotates open the second door (210).

[0054] FIG. 2 illustrates one end of a driving unit (400) located in a first door unit (100) as an embodiment of the present invention.

[0055] The first door (110) is connected to a drive unit (400) on one side facing the interior of the vehicle and is configured to move as a whole in response to the longitudinal movement of the drive unit (400). One end of the drive unit (400) is fixed to a fixing part (420) located on the first door (110) and is configured to be connected to the first door (110). A locking projection (430) located on one end of the drive unit (400) is configured to be fixed to the fixing part (420). The fixing part (420) may be configured as a clamp and is configured to fix one end of the spindle (410) as the drive unit (400). Accordingly, the first door unit (100) is configured so that the first door (210) is switched to an open state or a closed state in response to the longitudinal movement of the drive unit (400).

[0056] In addition, the second door (210), which is connected to the first door unit (100) and the locking unit (300), can be switched to an open or closed state as a whole with the first door unit (100) by the driving force of the driving unit (400).

[0057] FIG. 3a illustrates a state in which the first door unit (100) and the second door unit (200) are opened as a single unit while the locking unit (300) is engaged.

[0058] When driving force is applied from the driving unit (400) while the locking unit (300) is engaged, the first door (110) and the second door (210) move together along the driving unit (400) as a single unit, so as to be configured to switch to a fully open state or a fully closed state.

[0059] In this case, the second door (210) is moved into the interior of the vehicle body (600), and as shown in FIG. 3b, the second door (210) is positioned by being drawn into the interior of the vehicle body (600) along the guide section (220). As an example, the guide section (220) is fixed to the vehicle body (600) and is located at the bottom of the second door (210). The guide section (220) is configured to be located between the outer surface of the vehicle body (600) and the vehicle interior material (800), so that the second door (210) is configured to slide integrally with the first door (110).

[0060] That is, the first door (110) and the second door (210) are configured to be opened as a single unit or separately depending on the connection relationship of the locking unit (300).

[0061] FIG. 3b illustrates a side cross-sectional view of a vehicle in which the second door (210) is located in an open state, with the second door (210) positioned along the guide section (220) adjacent to the underfloor. Accordingly, the second door (210) is configured to move to a position facing the interior material (800) of the vehicle while adjacent to the underfloor.

[0062] FIG. 4a illustrates a state in which the first door (110) is slid open and the second door (210) is closed while the locking unit (300) is released, and FIG. 4b illustrates a state in which the first door (110) is slid open and the second door (210) is rotated open while the locking unit (300) is released.

[0063] When a user request for opening the door is granted, the locking unit (300) is released by the control unit (500) and a signal to open the first door (110) is granted, and the driving unit (400) is configured to apply driving force to the first door (110) so that the first door (110) is inserted into the inner space of the side body (600) of the first door (110).

[0064] Even when the first door (110) is switched to an open state, the second door (210), with the locking unit (300) released, is configured to move independently of the first door (110). The second door (210) can maintain a closed state as shown in FIG. 4a, and as shown in FIG. 4b, it can be configured to rotate open around the guide part (220) by applying the driving force of the rotating part (230) to the bottom of the second door (210). When the second door (210) is opened by the rotational force of the rotating part (230) relative to the guide part (220) located at the bottom of the vehicle body, it is configured to open in an inclined shape with a predetermined angle from the underfloor inside the vehicle body.

[0065] The rotating part (230) may be configured to be located adjacent to the guide part (220), and more preferably, at least a portion of the second door (210) may be located between the rotating part (230) and the guide part (220). The rotating part (230) is configured to apply rotational force to the second door (210) by the control part (500), so that the second door (210) is rotated open when the locking unit (300) is released.

[0066] FIGS. 5a and 5b illustrate the configuration of the locking unit (300) through the DD cross-section of FIG. 5a.

[0067] As described above, the locking unit (300) is configured such that the first door (110) and the second door (210) are adjacent to each other. The locking unit (300) of the present invention includes a housing (310) located in the second door (210), a rod portion (320) located inside the housing (310) and configured to protrude an upper portion facing the first door (110), and an insertion portion (330) located in the first door (110) so that the rod portion (320) can be inserted.

[0068] In another embodiment of the present invention, a housing located in the first door (110) may be included, and a rod portion inserted into the housing (310) may be located in the second door (210).

[0069] In the present invention, the housing (310) is composed of a gas cylinder, and the rod portion (320) can be controlled to protrude outward from the housing (310) by the pressure of the gas cylinder. The control unit (500) is configured to control the gas pressure inside the housing (310), and controls whether the first door (110) and the second door (210) are connected by setting whether the rod portion (320) protrudes. More preferably, the control unit (500) is configured to control the gas pressure inside the housing (310) by controlling the opening and closing of a conduit fluidly connected to the housing (310) composed of a gas cylinder.

[0070] When the load portion (320) is inserted into the insert portion (330) and fixed by the control portion (500), the first door (110) and the second door (210) are configured to open and close as a single unit, and when the load portion (320) is separated from the insert portion (330), the first door (110) and the second door (210) can be configured to move independently.

[0071] FIG. 6a illustrates the CC cross-section of FIG. 4b, and FIG. 6b illustrates the connection relationship of a rotating part (230) configured to come into contact with one end of the second door (210).

[0072] As described, the second door (210) is configured to be connected to a guide portion (220) located at the bottom of the vehicle body (600), and the rotating portion (230) is configured to be in contact with the bottom of the second door (210) adjacent to the end of the guide portion (220). More preferably, the rotating portion (230) is configured to be in contact with the bottom of the second door (210) in a closed state, and the control portion (500) may be configured so that the rotating portion (230) rotates when the locking unit (300) is released.

[0073] The rotating part (230) is configured to include a motor so that the rotational force of the motor is applied to the second door (210), and the second door (210) is configured to rotate open relative to the guide part (220) by the rotational force of the rotating part (230). More preferably, the rotating part (230) is located on the lower surface of the underfloor (700) of the vehicle body (600) and is configured in a position adjacent to the guide part (220), so that the rotating part (230) and the lower part of the second door (210) can be connected when the second door (210) is closed.

[0074] In the unlocked state of the locking unit (300), the control unit (500) controls the rotational force of the rotating unit (230) so that the upper part of the second door (210) is rotated downward and opened relative to the lower part of the second door (210). More preferably, the second door (210) is configured to rotate open relative to the guide unit (220) located at the lower part of the second door (210).

[0076] The above detailed description is illustrative of the present invention. Furthermore, the foregoing describes preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, modifications or alterations are possible within the scope of the concept of the invention disclosed herein, the scope equivalent to the disclosed content, and / or the scope of the art or knowledge. The described embodiments describe the best state for implementing the technical concept of the present invention, and various modifications required for specific fields of application and uses of the present invention are possible. Accordingly, the above detailed description of the invention is not intended to limit the present invention to the disclosed embodiments. Additionally, the appended claims should be interpreted as including other embodiments. Explanation of the symbols

[0078] 100: 1st door unit 110: Door 1 200: Second door unit 210: The second door 220: Guide Department 230: Rotating part 300: Locking unit 310: Housing 320: Road Department 330: Insert 400: Drive unit 410: Spindle 420: Fixed part 430: Stopper 500: Control unit 600: Chassis 700: Underfloor 800: Vehicle interior

Claims

Claim 1 A door opening structure of a vehicle comprising: a first door unit located on at least one side of the vehicle and including a first door; a second door unit located adjacent to the first door and including a second door; a locking unit positioned to selectively fix the first door unit and the second door unit; and a control unit configured to fix the locking unit so that the first door unit and the second door unit open integrally, or to release the locking unit so that the second door unit opens independently of the first door unit; wherein the first door unit further comprises a driving unit connected to the first door and performing longitudinal movement; and wherein the second door unit further comprises a guide part located at one end of the second door, configured to allow the second door to move along the opening direction of the first door unit, and extending in a direction corresponding to the movement direction of the driving unit. Claim 2 delete Claim 3 A door opening structure of a vehicle according to claim 1, further comprising: a spindle located on a vehicle body and having one end connected to the rear surface of the first door; and a fixing part configured to fix the spindle to the first door. Claim 4 A door opening structure of a vehicle according to claim 1, configured such that when the driving unit is driven while the locking unit is fixed, the first door and the second door are opened as a single unit. Claim 5 A door opening structure of a vehicle configured such that when the driving unit is driven while the locking unit is released, the first door is opened independently. Claim 6 A door opening structure of a vehicle according to claim 1, further comprising a rotating part positioned adjacent to at least a part of the guide part and configured to apply rotational force to the second door when the locking unit is released so that the second door rotates open with respect to the guide. Claim 7 In claim 6, the control unit is configured to apply power to the rotating part in the released state of the locking unit so that the second door rotates open independently of the first door with respect to the guide, forming a door opening structure of a vehicle. Claim 8 In claim 1, the locking unit further comprises: a housing located in the first door unit or the second door unit; a rod portion located in the housing and selectively protruding at a position adjacent to the first door or the second door corresponding to the first door unit or the second door unit; and an insertion portion located in the second door or the first door corresponding to the first door unit or the second door unit so as to selectively retract the rod portion; a door opening structure of a vehicle. Claim 9 In claim 8, the above-described control unit controls the load portion to be drawn into the insert portion when the first door and the second door are opened together, thereby forming a door opening structure of a vehicle.

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