Door hinge device for vehicles

Abstract

A vehicle door hinge device is disclosed. A vehicle door hinge device according to one embodiment of the present invention, in a vehicle without a B-pillar, a hinge slider connected to the hinge portion of the door slides diagonally outward along a rail inside a case to secure the rotational trajectory of the door, and then a first striker configured on the hinge slider is constrained to a hinge latch portion fixed on a rail inside the case in conjunction with the action of a second striker configured on one side of the door to fix the sliding position of the hinge slider, thereby enabling stable opening and closing operation of the door.

Description

Technology Field

[0001] The present invention relates to a vehicle door hinge device, and more specifically, to a vehicle door hinge device that enables each door to open and close independently by pushing the hinge portion of the door outward from the vehicle body in a vehicle without a B-pillar. Background Technology

[0002] Generally, vehicle doors serve the important function of separating the interior and exterior of a vehicle, blocking external noise, rain, dust, and wind, and absorbing impact along with the side structure in the event of a side collision to safely protect the occupants.

[0003] There are various types of vehicle doors, including special-purpose doors, but hinged swing doors are most commonly used in passenger vehicles.

[0004] Typically, a swing door refers to a door that opens outward from the vehicle body around a hinge axis installed between the vehicle body and the hinge bracket, and has the advantages of being easy to open and close, having a simple structure, and being easy to maintain and repair.

[0005] Meanwhile, some vehicles feature opposing swing doors that provide a great sense of openness when opened and are advantageous for passengers getting on and off.

[0006] These opposing swing doors are classified into types without a B-pillar and types with a B-pillar.

[0007] FIG. 1 is a side view illustrating a vehicle equipped with opposing swing doors according to an example of the prior art, and FIG. 2 is a cross-sectional view illustrating the portion where the front door and the rear door meet in the vehicle of FIG. 1.

[0008] First, referring to FIGS. 1 and 2, an example of a facing swing door applied to a vehicle (100) without a B-pillar is shown. A hinge portion of the front door (110) is installed at the front end of the front door (110), and a hinge portion of the rear door (120) is installed at the rear end of the rear door (120).

[0009] For such opposing swing doors, a latch (LC) is installed on one side of the front door (110) or rear door (120) to maintain a locked state.

[0010] In addition, a sealing (S) for airtightness is installed between the rear end of the front door (110) and the front end of the rear door (120).

[0011] As described above, the opposing swing door of the vehicle (100) without a B-pillar has a good sense of openness when passengers get in and out or during leisure activities, but it has a disadvantage that the order of opening and closing is predetermined, such as having to open the front door (110) first or close it later, due to interference problems where the rotational trajectories of the front door (110) and the rear door (120) overlap when the front door (110) and the rear door (120) are opened and closed.

[0012] As such, the opening and closing sequence of the front door (110) and the rear door (120) is predetermined, so there is a problem that the rear door (120) cannot be opened or closed independently.

[0013] FIG. 3 is a side view illustrating a vehicle equipped with opposing swing doors according to another example of the prior art, and FIG. 4 is a cross-sectional view illustrating the portion where the front door and the rear door meet in the vehicle of FIG. 3.

[0014] Referring to FIGS. 3 and 4, an example of a facing swing door applied to a vehicle (200) having a B-pillar (230) is shown. In this case, the front door (210) has a hinge portion installed at the front end of the front door (210), and the rear door (220) has a hinge portion installed at the rear end of the rear door (220).

[0015] These opposing swing doors are equipped with a latch (LC) to maintain a locked state between each side of the front door (210) and the rear door (220) and the B-pillar (230).

[0016] In addition, a sealing (S) for airtightness is installed between the rear end of the front door (210) corresponding to the B-pillar (230) and the front end of the rear door (220) and the B-pillar (230).

[0017] As such, the opposing swing door of the vehicle (100) with the B-pillar is configured so that the front door (210) and the rear door (220) rotate relative to the B-pillar (230), allowing each to open and close independently, which has the advantage of a free operating sequence, but there is a problem that the sense of openness is reduced during passenger boarding / alighting or leisure activities due to the application of the B-pillar (230).

[0018] As such, the opposing swing door has a difference in the sense of openness depending on the presence or absence of the B-pillar, and there is a difference in the opening and closing operation of the front door and the rear door.

[0019] Meanwhile, as described above, in order to resolve the problem of the operating sequence of the front door (110) and the rear door (120) while maintaining the openness of the vehicle (100) without a B-pillar, there are examples in which a gooseneck type hinge device is applied as a door hinge device for a facing swing door, but such a gooseneck type hinge device requires a lot of extra space in the width direction of the vehicle body due to the characteristics of its shape, making it difficult to configure the vehicle body layout.

[0020] Accordingly, in order to apply a facing swing door to a vehicle without a B-pillar, a door hinge device is required to implement a new opening and closing structure. Prior art literature

[0021] The matters described in the background technology section of the Korean Intellectual Property Office Publication No. 2019-0028966 (Publication Date: March 20, 2019) are intended to enhance understanding of the background of the invention and may include matters that are not prior art already known to a person skilled in the art to which this technology belongs. The problem to be solved

[0022] An embodiment of the present invention aims to provide a vehicle door hinge device that enables stable opening and closing operation of a door in a vehicle without a B-pillar, wherein a hinge slider connected to the hinge portion of a door slides diagonally outward along a rail inside a case to secure the rotational trajectory of the door, and then a first striker configured on the hinge slider is constrained to a hinge latch portion fixed on a rail inside the case in conjunction with the action of a second striker configured on one side of the door to fix the sliding position of the hinge slider. means of solving the problem

[0023] In one or more embodiments of the present invention, a vehicle door hinge device comprises: a case installed diagonally toward the outside of the vehicle body on one side of the vehicle body corresponding to one end of the door and having a guide slot formed on the outer surface; rails formed longitudinally on the upper and lower sides of the interior of the case, respectively; and a hinge slider connected via a hinge axis to a door hinge bracket fixed to one end of the door through the guide slot while being installed to slide along the rails inside the case, wherein, inside the case, a first striker installed on one side of the hinge slider; and a second striker installed on one side of the door corresponding to the outer surface of the case. A vehicle door hinge device may be provided, comprising a hinge latch portion that is configured such that, inside the case, a first and second claw lever and a pawl lever are installed on the rail through two lever axles, and when the hinge slider slides diagonally outward from the vehicle body, the second claw lever acts on the pawl lever by the second striker, thereby enabling the first claw lever to restrain or release the first striker.

[0024] The above door may have one end formed by the front end of the front door or the rear end of the rear door.

[0025] The first striker can be fixed to one side of the hinge slider through a first bracket so as to be restrained to the first claw lever while the hinge slider slides diagonally outward from the vehicle body.

[0026] In addition, the second striker may be fixed to one side of the door through a second bracket so as to act on the second claw lever when the door is slid diagonally outward from the vehicle body by the hinge slider.

[0027] The hinge latch portion may include: a first lever shaft and a second lever shaft, each having its upper end fixed through a fixing bracket formed on one side of an upper rail on the inner upper side of the case and each having its lower end fixed by a connecting bracket; a first claw lever rotatably installed on the lower side of the first lever shaft, having a restraining groove formed on one side for restraining the first striker and a locking end formed on the other side; a second claw lever rotatably installed on the upper side of the first lever shaft, having an acting end formed on one side for the second striker to act on and a rod-shaped pole guide formed on the lower side of the other side; and a pole lever rotatably installed on one side of the second lever shaft corresponding to the first claw lever, having a supporting end formed on one side for acting on the locking end and a guide wall formed along the outer surface for the pole guide to act on.

[0028] Here, the second claw lever may further have a guide end formed such that the tip of the actuating end extends diagonally outward from the vehicle body to guide the entry of the second striker.

[0029] In addition, the above case may have an action hole formed through the outer surface corresponding to the second claw lever and the pole lever.

[0030] And the hinge latch portion may further include: a first claw spring fitted to the lower part of the first lever shaft to elastically support the first claw lever in a rotational direction that releases the restraint of the first striker; a second claw spring fitted to the upper part of the first lever shaft to elastically support the second claw lever in a rotational direction that releases the action of the second striker; and a pawl spring fitted to the lower part of the second lever shaft to elastically support the pawl lever in a rotational direction in which the support end supports the locking end of the first claw lever.

[0031] The hinge slider may comprise: an upper hinge slider that is slidably connected to an upper rail inside the case via a slider, and whose front end is hinged to the door hinge bracket outside the case via a hinge axis through an upper guide slot formed on the upper outer surface of the case; and a lower hinge slider that is slidably connected to a lower rail inside the case via a slider, whose front end is hinged to the door hinge bracket outside the case via a hinge axis through a lower guide slot formed on the lower outer surface of the case, and whose first striker is fixed to one side via a first bracket.

[0032] Additionally, the door hinge bracket may comprise an upper door hinge bracket fixed to the upper side of one end of the door and hinge-connected to the tip of the upper hinge slider through a hinge axis; and a lower door hinge bracket fixed to the lower side of one end of the door and hinge-connected to the tip of the lower hinge slider through a hinge axis. Effects of the invention

[0033] A vehicle door hinge device according to an embodiment of the present invention can fix the sliding position of a hinge slider connected to a hinge portion of a door in a vehicle without a B-pillar, after securing the rotational trajectory of the door by sliding along a rail inside a case in a diagonal direction to the outside of the vehicle body, and then a first striker configured on the hinge slider is constrained to a hinge latch portion fixed on a rail inside the case in conjunction with the action of a second striker configured on one side of the door.

[0034] Accordingly, it is possible to open and close both doors simultaneously, or to open and close each door independently.

[0035] In addition, after the hinge portion of the door slides diagonally outward along the hinge slider, the first striker is restrained through the hinge latch portion to maintain the sliding position of the hinge slider in a fixed state, thereby enabling stable opening and closing of the door.

[0036] In addition, since the user can manually open and close the door without a separate drive unit using a motor, it has the advantage of enabling door opening and closing operation even when the battery is discharged.

[0037] In addition, the vehicle door hinge device according to the embodiment of the present invention has the advantage of being slim compared to conventional driving units such as motors or gooseneck type hinge devices, and also has the advantage of providing room in the vehicle body layout configuration because it does not require extra space according to the operating radius. Brief explanation of the drawing

[0038] FIG. 1 is a side view illustrating a vehicle equipped with a facing swing door according to an example of the prior art. FIG. 2 is a cross-sectional view illustrating the part where the front door and the rear door meet in the vehicle of FIG. 1. FIG. 3 is a side view illustrating a vehicle equipped with opposing swing doors according to another example of the prior art. FIG. 4 is a cross-sectional view illustrating the part where the front door and the rear door meet in the vehicle of FIG. 3. FIG. 5 is an inner perspective view of a vehicle door to which a vehicle door hinge device according to an embodiment of the present invention is applied. FIGS. 6 and FIGS. 7 are perspective views projecting a case of a vehicle door hinge device according to an embodiment of the present invention. FIG. 8 is a partial perspective view of a hinge latch portion applied to a vehicle door hinge device according to an embodiment of the present invention. FIGS. 9 to 12 are plan cross-sectional views illustrating the stepwise operation states of a vehicle door hinge device according to an embodiment of the present invention. Specific details for implementing the invention

[0039] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0040] However, the size and thickness of each component shown in the drawings are depicted arbitrarily for the convenience of explanation, and thus the present invention is not necessarily limited to what is shown in the drawings; thicknesses have been enlarged or reduced to clearly represent various parts and regions. Additionally, parts unrelated to the explanation have been omitted to clearly explain the embodiments of the present invention.

[0041] In describing the embodiments of the present invention, for convenience of explanation, the upper left direction of FIG. 5 is defined as the front and the lower right direction as the rear. Additionally, the vehicle door hinge device according to the embodiment of the present invention is described as an example applied to the rear door behind the passenger seat.

[0042] FIG. 5 is an inner perspective view of a vehicle door to which a vehicle door hinge device according to an embodiment of the present invention is applied, FIG. 6 and FIG. 7 are projected perspective views of a case of a vehicle door hinge device according to an embodiment of the present invention, and FIG. 8 is a partial perspective view of a hinge latch portion applied to a vehicle door hinge device according to an embodiment of the present invention.

[0043] The vehicle door hinge device (1) according to an embodiment of the present invention is described as being applied to the rear door behind the passenger seat of a passenger vehicle without a B-pillar, but is not limited thereto and can also be applied between the front doors (FDR) on both sides and the vehicle body (BD) of a passenger vehicle without a B-pillar, and between the rear doors (RDR) on both sides and the vehicle body (BD).

[0044] That is, when the doors are opened or closed, the front door (FDR) or the rear door (RDR) moves to the outside of the vehicle body (BD) in each diagonal direction in front of or behind the vehicle body (BD), thereby securing the rotational trajectory of each door, allowing both doors to be opened and closed simultaneously or one door to be opened and closed independently.

[0045] Referring to FIGS. 5 to 8, a vehicle door hinge device (1) according to an embodiment of the present invention may include a case (10), a hinge slider (20), first and second strikers (30) (40), and a hinge latch part (50).

[0046] The above case (10) is installed diagonally toward the outside of the vehicle body on one side of the vehicle body (BD) corresponding to one end of the door (DR).

[0047] Here, the term "door (DR)" may refer to a front door (FDR) or a rear door (RDR), and may refer to both simultaneously. That is, in the case of a front door (FDR), one end may be one side of the front end of the front door (FDR), and in the case of a rear door (RDR), one end may be one side of the rear end of the rear door (RDR).

[0048] And one side of the vehicle body (BD) on which the above-mentioned front door (FDR) is installed refers to one side of the front of the vehicle body (BD), and at this time, the front door (FDR) may be installed diagonally toward the front outer side of the vehicle body (BD).

[0049] In addition, one side of the vehicle body (BD) on which the rear door (RDR) is installed refers to one side of the rear of the vehicle body (BD), and at this time, the rear door (RDR) may be installed diagonally toward the rear outer side of the vehicle body (BD).

[0050] In addition, the above case (10) has two guide slots (SL1) and (SL2) formed on the outer surface, and an upper rail (RL1) and a lower rail (RL2) are installed along the longitudinal direction on the upper and lower sides, respectively, inside.

[0051] That is, the above case (10) is formed by assembling an outer case (11) and an inner case (13) together.

[0052] The above outer case (11) faces the outside of the vehicle body (BD), and is cut along the longitudinal direction at the upper and lower parts of the cross-section, respectively, so that an upper guide slot (SL1) and a lower guide slot (SL2) are formed parallel to each other.

[0053] The inner case (13) faces the inner side of the vehicle body (BD) and is assembled with the outer case (11).

[0054] And the upper rail (SL1) is positioned longitudinally within the outer case (11) and the inner case (13) and is fixed to the upper side of the inner surface of the inner case (13), and the lower rail (RL2) is positioned parallel to the upper rail (RL1) within the outer case (11) and the inner case (13) and is fixed to the lower side of the inner surface of the inner case (13).

[0055] Additionally, the hinge slider (20) is installed in the interior between the outer case (11) and the inner case (13) via the upper rail (RL1) and the lower rail (RL2), and the hinge latch part (50) is installed on the upper rail (RL1) in the interior between the outer case (11) and the inner case (13).

[0056] The hinge slider (20) is installed to slide along the upper rail (RL1) and lower rail (RL2) through two sliders (SD1) (SD2) inside the case (10), and is connected to a door hinge bracket (3) fixed to one end of the door (DR) outside the case (10) through two guide slots (SL1) (SL2) via a hinge shaft (5).

[0057] That is, the hinge slider (20) is composed of an upper hinge slider (21) and a lower hinge slider (23) installed through guide slots (SL1) and (SL2) formed in the upper and lower parts of the outer case (11).

[0058] The upper hinge slider (21) is connected to the upper rail (RL1) inside the case (10) so as to be slidably movable through the slider (SD1), and its tip is hinged to the door hinge bracket (3) through the hinge shaft (5) outside the outer case (11) through the upper guide slot (SL1) formed on the upper outer surface of the outer case (11).

[0059] Additionally, the lower hinge slider (23) is slidably connected to the lower rail (RL2) inside the case (10) via the slider (SD2), and its tip is hinged to the door hinge bracket (3) outside the outer case (11) via the hinge shaft (5) through the lower guide slot (SL2) formed on the upper outer surface of the outer case (11).

[0060] Here, the first striker (30) is fixed to one side of the lower hinge slider (23) through the first bracket (31).

[0061] And the door hinge bracket (3) is composed of an upper door hinge bracket (3a) and a lower door hinge bracket (3b).

[0062] That is, the upper door hinge bracket (3a) is fixed to the upper side of one end of the door (DR) and is hinge-connected to the tip of the upper hinge slider (21) through the hinge shaft (5).

[0063] In addition, the lower door hinge bracket (3b) is fixed to the lower side of one end of the door (DR) and is hinge-connected to the front end of the lower hinge slider (23) through a hinge shaft (5).

[0064] And the first striker (30) is installed on one side of the lower hinge slider (23) among the hinge sliders (20) inside the case (10).

[0065] That is, the first striker (30) is fixed to one side of the lower hinge slider (23) through a first bracket (31) so as to be restrained by a first claw lever (51) configured in the hinge latch part (50) while the hinge slider (20) is slid diagonally outward from the vehicle body.

[0066] Additionally, the second striker (40) is installed on one side of the door (DR) corresponding to the outer surface of the outer case (11).

[0067] That is, the second striker (40) is fixed to one side of the door (DR) through a second bracket (41) so as to act on the second claw lever (53) configured in the hinge latch part (50) when the door (DR) is slid diagonally outward by the hinge slider (20).

[0068] Referring to FIG. 8, the hinge latch portion (50) is composed of a first and second claw lever (51) (53) installed via a first lever shaft (RS1) on the upper rail (RL1) inside the case (10), and a pawl lever (55) installed via a second lever shaft (RS2). When the hinge slider (20) slides diagonally outward from the vehicle body, the second claw lever (53) acts on the pawl lever (55) by the second striker (40), thereby causing the first claw lever (51) to restrain or release the first striker (30).

[0069] That is, the hinge latch portion (50) includes a first and second lever shaft (RS1)(RS2), a first and second claw lever (51)(53), and a pawl lever (55).

[0070] The upper ends of the first and second lever shafts (RS1) and (RS2) are fixed adjacent to each other and parallel to each other on a fixing bracket (BK1) formed on one side of the upper rail (RL1) at the inner upper part of the case (10).

[0071] In addition, the lower ends of the first and second lever shafts (RS1) and (RS2) are each fixed through a connecting bracket (BK2).

[0072] The first claw lever (51) is rotatably installed on the lower side of the first lever shaft (RS1). Additionally, a restraining groove (61) is formed on one side to restrain the first striker (30), and a locking portion (63) is formed on the other side.

[0073] The second claw lever (53) is rotatably installed on the upper side of the first lever shaft (RS1). Additionally, an action end (71) on which the second striker (40) acts is formed on one side, and a rod-shaped pole guide (69) is formed on the lower side of the other side.

[0074] Here, the action member (71) includes a guide member (71a) formed by extending the front end diagonally outward from the vehicle body, and the guide member (71a) guides the entry of the second striker (40) when the door (DR) is closed, thereby inducing it to act on the action member (71).

[0075] The above-mentioned pole lever (55) is rotatably installed on one side of the second lever shaft (RS2) corresponding to the first claw lever (51). Additionally, a support member (65) acting on the locking member (63) is formed on one side, and a guide wall (67) on which the pole guide (69) acts is formed along the outer surface.

[0076] Here, in order for the second claw lever (53) configured inside the case (10) to be operated by the second striker (40) outside the case (10), an action hole (AH) is formed through the outer surface of the outer case (11) corresponding to the second claw lever (53) and the pawl lever (55).

[0077] These hinge latch portions (50) further include first and second claw springs (81)(83) and a pawl spring (85).

[0078] The first claw spring (81) is fitted onto the lower part of the first lever shaft (RS1) and is installed to elastically support the first claw lever (51) in a rotational direction that releases the restraint of the first striker (30).

[0079] The second claw spring (83) is fitted onto the upper part of the first lever shaft (RS1) and is installed to elastically support the second claw lever (53) in a rotational direction that releases the action of the second striker (40).

[0080] Additionally, the above-mentioned pole spring (85) is fitted onto the lower part of the second lever shaft (RS2) and is installed to elastically support the pole lever (55) in a rotational direction in which the support end (65) supports the locking end (63) of the first claw lever (51).

[0081] Hereinafter, the specific operation of a vehicle door hinge device according to an embodiment of the present invention will be described with reference to FIGS. 9 to 12.

[0082] FIGS. 9 to 12 are plan cross-sectional views illustrating the stepwise operation states of a vehicle door hinge device according to an embodiment of the present invention.

[0083] First, referring to Fig. 9, the door (DR) is in a closed state.

[0084] At this time, the hinge axis (5) connecting the door (DR) and the car body (BD) is moved diagonally inward along with the hinge slider (20) of the car body (BD), and one end of the door (DR) is in a position where the door (DR) maintains a closed state.

[0085] At this time, the hinge latch portion (50) is in a state where the support portion (65) of the pawl lever (55) is disengaged from the locking portion (63) of the first claw lever (51), and the first claw lever (51) is rotated by the first claw spring (81) so that the restraining groove (61) of the first claw lever (51) is opened at an angle through which the first striker (30) can enter.

[0086] Additionally, the second claw lever (53) is rotated by the second claw spring (83) so that the second striker (40), which is fixed to the door (DR), can touch and push it.

[0087] Referring to FIG. 10, as described above, when the user performs a sliding operation to open the door (DR) while the door (DR) is closed, the hinge portion (HG) of the door (DR) moves diagonally outward from the vehicle body (BD).

[0088] Then, the hinge slider (20), which is connected to the door hinge bracket (3) through the hinge shaft (5), slides diagonally outward along the upper and lower rails (RL1) (RL2) of the vehicle body (BD).

[0089] At this time, the hinge latch portion (50) is in a state where it is restrained in the restraint groove (61) as the first striker (30) pushes and rotates one side of the restraint groove (61) of the first claw lever (51).

[0090] Additionally, the second striker (40) is in a state where it pushes and rotates the action end (71) of the second claw lever (53). At this time, the pole guide (69) of the second claw lever (53) is moved to the outside of the guide wall (67) on the pole lever (55) and is in a state where it suppresses the rotation of the pole lever (55) by the pole spring (85).

[0091] Referring to Fig. 11, after the sliding operation of the door (DR) is completed, the user performs a swing operation to open the door (DR).

[0092] Then, the door (DR) rotates around the hinge axis (5) as the center of rotation.

[0093] At this time, the hinge latch part (50) causes the second striker (40) to detach from the operating end (71) of the second claw lever (53) in the direction of the vehicle body along with the swing operation of the door (DR), and the second claw lever (53) rotates in the opposite direction by the second claw spring (83).

[0094] Accordingly, the pole guide (69) of the second claw lever (53) moves inward toward the guide wall (67) on the pole lever (55), and the pole lever (55) rotates by the pole spring (85) so that the support end (65) engages with the catch end (63) of the first claw lever (51), thereby supporting the first claw lever (51) so that it cannot rotate in the opposite direction.

[0095] Accordingly, the first striker (30) is maintained in a restrained state in the restraining groove (61) of the first claw lever (51), and the door (DR) is fixed in a position where the hinge portion (HG) with the vehicle body (BD) slides diagonally outward from the vehicle body (BD), thereby securing a rotational trajectory without interference with the vehicle body (BD) or other doors (DR), and stably enabling the user to swing the door (DR).

[0096] Meanwhile, referring to FIG. 12, when the door (DR) is closed again while in a fully open state, the door (DR) is closed through swing operation and slide movement operation with the hinge axis (5) as the center of rotation.

[0097] Here, closing the door (DR) is achieved by performing a swing operation opposite to that of opening, and then sliding the door (DR) again in an inward diagonal direction of the vehicle body (BD).

[0098] At this time, in order to completely close the door (DR), the first striker (30) must be released from the restraint groove (61) of the first claw lever (51) before sliding.

[0099] To this end, during the process in which the door (DR) is closed by swinging, the second striker (40) fixed to the door (DR) enters the guide end (71a) of the second claw lever (53).

[0100] Then, the second striker (40) is guided by the guide section (71a) and moves to the action section (71) by pushing the second claw lever (53) diagonally outward from the vehicle body (BD) and rotating it.

[0101] At this time, referring again to FIG. 10, the second claw lever (53) is in a state where the pole guide (69) has moved to the outside of the guide wall (67) on the pole lever (55), and the pole lever (55) has overcome the elastic force of the pole string (85) and rotated, and the support end (65) of the pole lever (55) is detached from the catch end (63) of the first claw lever (51).

[0102] In this state, the first claw lever (51) is in a rotatable state where the support state of the locking portion (63) by the support portion (65) is released, but the door (DR) is in a state before sliding movement, and depending on the position of the door (DR), the first striker (30) maintains a position restrained in the restraining groove (61) of the first claw lever (51).

[0103] Next, when the user slides the door (DR) inward diagonally toward the vehicle body (BD), the hinge slider (20) moves inward diagonally toward the vehicle body (BD) along the upper rail (RL1) and the lower rail (RL2), and the first striker (30) disengages from the restraining groove (61) of the first claw lever (51), thereby closing the door (DR).

[0104] Accordingly, in a vehicle door hinge device (1) according to an embodiment of the present invention, in a vehicle without a B-pillar, a hinge slider (20) connected to the hinge portion (HG) of the door (DR) slides along the upper and lower rails (RL1) (RL2) inside the case (10) in an outward diagonal direction of the vehicle body (BD) to secure the rotational trajectory of the door (DR).

[0105] At this time, the first striker (30) fixed to the hinge slider (20) is restrained in the restraining groove (61) of the first claw lever (51) on the hinge latch part (50) fixed on the upper rail (RL1) inside the case (10) in conjunction with the action of the second striker (40) fixed to one side of the door (DR), thereby fixing the slide movement position of the hinge slider (20), so that both doors (DR) can be opened and closed simultaneously, and only one door (DR) can be opened and closed independently.

[0106] In addition, after the hinge portion (HG) of the door (DR) slides diagonally outward along the hinge slider (20) of the vehicle body (BD), the first striker (30) is restrained through the first claw lever (51) on the hinge latch portion (50) to maintain the sliding position of the hinge slider (20) in a fixed state, thereby enabling stable door opening and closing operation.

[0107] In addition, by allowing the user to manually open and close the door (BD) without a separate drive unit using a motor, the door can be opened and closed even when the battery is discharged.

[0108] In addition, the vehicle door hinge device (1) according to the embodiment of the present invention has the advantage of being slim compared to conventional driving units such as motors or gooseneck type hinge devices, and also has the advantage of being able to accommodate the vehicle body layout configuration without requiring extra space due to the operating radius.

[0109] Although one embodiment of the present invention has been described above, the present invention is not limited to such embodiment and includes all modifications within the scope recognized as equivalent that can be easily modified by a person skilled in the art to which the present invention belongs from the embodiment of the present invention. Explanation of the symbols

[0110] 1: Door hinge mechanism 3: Door hinge bracket 5: Hinge axis 7: Striker HG: Hinge part BD: Chassis FDR: Front Door RDR: Rear Door DR: Door 10: Case 11: External case 13: Medial case 20: Hinge Slider 21: Upper hinge slider 23: Lower hinge slider 30: First Striker 31: 1st bracket 40: Second Striker 41: Second bracket 50: Hinge latch RS1, RS2: 1st and 2nd lever axes BK1: Fixing bracket BK2: Connection bracket 51: 1st Claw Lever 53: Second Claw Lever 55: Paul Lever 61: Restraint Home 63: The Haunting Group 65: Support group 67: Guide Wall 69: Paul Guyder 71: Action point 71a: Information desk 81: The First Claw Spring 83: The Second Claw Spring 85: Paul Spring SL1, SL2: Upper and lower guide slots AH: Action hole RL1, RL2: Upper and lower rails SD1, SD2: Upper and lower sliders

Claims

Claim 1 A vehicle door hinge device comprising: a case installed diagonally toward the outside of the vehicle body on one side of the vehicle body corresponding to one end of the door; rails formed longitudinally on the upper and lower sides inside the case, respectively; and a hinge slider connected via a hinge axis to a door hinge bracket fixed to one end of the door while installed to slide along the rails inside the case, wherein, inside the case, a first striker installed on one side of the hinge slider; and a second striker installed on one side of the door corresponding to the outer surface of the case. A vehicle door hinge device comprising: a hinge latch portion comprising, within the case above, a first and second claw lever and a pawl lever installed on the rail through two lever axles, wherein, at a position where the hinge slider slides diagonally outward from the vehicle body, the second claw lever acts on the pawl lever by the second striker, and the first claw lever restrains or releases the first striker. Claim 2 In claim 1, the door is a vehicle door hinge device in which one end is formed as the front end of a front door or the rear end of a rear door. Claim 3 A vehicle door hinge device according to claim 1, wherein the first striker is fixed to one side of the hinge slider through a first bracket so as to be restrained by the first claw lever in a state where the hinge slider is slid diagonally outward from the vehicle body. Claim 4 In claim 1, the second striker is a vehicle door hinge device fixed to one side of the door through a second bracket so as to act on the second claw lever while the door is slid diagonally outward from the vehicle body by the hinge slider. Claim 5 A vehicle door hinge device according to claim 1, wherein the hinge latch portion comprises: a first lever shaft and a second lever shaft, each having its upper end fixed through a fixing bracket formed on one side of an upper rail at the inner upper part of the case and each having its lower end fixed by a connecting bracket; a first claw lever rotatably installed on the lower side of the first lever shaft, having a restraining groove formed on one side to restrain the first striker and a locking end formed on the other side; a second claw lever rotatably installed on the upper side of the first lever shaft, having an acting end formed on one side to act upon the second striker and a rod-shaped pawl guide formed on the lower side of the other side; and a pawl lever rotatably installed on one side of the second lever shaft corresponding to the first claw lever, having a supporting end formed on one side to act upon the locking end and a guide wall formed along the outer surface to act upon the pawl guide. Claim 6 In claim 5, the second claw lever is a vehicle door hinge device in which the tip of the actuating end is formed to extend diagonally outward from the vehicle body, and a guide end is further formed to guide the entry of the second striker. Claim 7 In claim 5, the above case is a vehicle door hinge device having an action hole formed through the outer surface corresponding to the second claw lever and the pawl lever. Claim 8 In claim 5, the hinge latch portion further comprises: a first claw spring fitted to the lower part of the first lever shaft to elastically support the first claw lever in a rotational direction that releases the restraint of the first striker; a second claw spring fitted to the upper part of the first lever shaft to elastically support the second claw lever in a rotational direction that releases the action of the second striker; and a pawl spring fitted to the lower part of the second lever shaft to elastically support the pawl lever in a rotational direction in which the support end supports the locking end of the first claw lever; a vehicle door hinge device. Claim 9 A vehicle door hinge device according to claim 1, comprising: an upper hinge slider which is slidably connected to an upper rail inside the case via a slider and whose front end is hinged to the door hinge bracket outside the case via a hinge axis through an upper guide slot formed on the upper outer surface of the case; and a lower hinge slider which is slidably connected to a lower rail inside the case via a slider and whose front end is hinged to the door hinge bracket outside the case via a hinge axis through a lower guide slot formed on the lower outer surface of the case, and whose first striker is fixed to one side via a first bracket. Claim 10 A vehicle door hinge device according to claim 9, wherein the door hinge bracket comprises: an upper door hinge bracket fixed to the upper side of one end of the door and hinge-connected to the tip of the upper hinge slider through a hinge axis; and a lower door hinge bracket fixed to the lower side of one end of the door and hinge-connected to the tip of the lower hinge slider through a hinge axis.

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