KR20020015470A - tailgate folding device for automotive vehicle - Google Patents

Abstract

PURPOSE: A tailgate folding apparatus of a vehicle is provided to use a tailgate conveniently in a limit space by preventing contact of the lower part of the tailgate with folding up and down the middle portion of the tailgate in opening. CONSTITUTION: A tailgate folding device of a vehicle is composed of a tailgate(10) divided into upper and lower parts, and folded; an operating unit(18) installed in the folded portion of the tailgate to control folding of the tailgate; a locking unit(20) constraining and releasing the relative turn of the divided tailgate according to the operating unit; and a restoring part(36) spreading the folded portion automatically in opening the tailgate. The tailgate is prevented from being damaged with folding the tailgate in opening at the limit space. A lower gate member(10b) is turned automatically with applying pressure to the lower gate member to spread an upper gate member(10a). The convenience is improved with closing the tailgate by turning the lower gate member.

Description

Tailgate folding device for automotive vehicle

The present invention relates to a tailgate folding device of a vehicle, and more particularly, to be able to operate the tailgate which is rotated upward and opened in a folding manner, so that the tailgate can be freely opened even at a low height of the ceiling. In addition, the present invention relates to a tailgate folding device for a vehicle that can be closed without opening again when closed in a folded state, so as to facilitate the user's convenience.

In general, the vehicle body is provided with a door that opens and closes for passengers getting on and off, loading and unloading cargo, and the so-called lift-up type (open / closed while being rotated up and down in such a door) Tailgate of the -up type is widely used as a rear door mainly in a hatchback type vehicle.

That is, as shown in FIG. 1, the tailgate 10 is opened while being rotated up and down with a hinge point H at a portion in contact with the roof panel 12 of the vehicle, and the tailgate 10 of the tailgate 10. When opening, the gas lifter 16 installed between the quarter panel 14 and the tailgate 10 of the vehicle is extended to firmly support the tailgate 10 in an open state.

However, when the tailgate 10 of the related art is opened and closed in a vertical rotation manner as described above, when the height of the ceiling C is opened, the tailgate 10 rotates in the upward direction. Interference occurs that the lower end reaches the ceiling (C).

As such, when interference occurs between the outer lower end portion of the tail gate 10 and the lower ceiling C having a lower height when the tail gate 10 is opened, the tail gate 10 is in contact with the ceiling C. There is a disadvantage that may cause damage.

Accordingly, the present invention has been conceived in view of the above, and is configured so that the middle portion of the tailgate can be folded in the vertical direction if necessary, between the outer lower end portion of the tailgate and the ceiling when the tailgate is opened at a low height. The purpose of the present invention is to enable efficient use of the tailgate even in a narrow space, and to allow for convenience of operation when folding and opening.

In order to achieve the above object, the present invention provides a tailgate which is divided up and down by a hinge point, and is folded in a folding manner, and an operation unit which is installed at a folded portion of the tailgate to control the folding of the tailgate. A lock for appropriately switching the relative rotation of the tailgate divided up and down according to the operation of the control unit from the restrained state to the released state, and automatically unfolding the folded portion when the tailgate is closed in the open state. Characterized in that it comprises a recovery unit to enable.

1 is a side view partially showing an open state of a tailgate of a conventional vehicle;

Figure 2 is a side view partially showing a state in which the tailgate is normally closed in accordance with the present invention.

3 is a side view partially showing a state in which the tailgate shown in FIG. 2 is normally opened;

4 is a side view partially showing a state in which the tailgate shown in FIG. 2 is folded open;

<Description of Symbols for Main Parts of Drawings>

10-tail gate 10a-top gate member

10b-lower gate member 10c-slope

10d-accommodating part 18-operating part

20-lock 22-guidance

24- movable rod 26- jammed rod

28,34-First and second restoring springs 30-Latch rod

32-supporting rod 36-restore

38,40-first, second pinion 42,44-first, second rack bar

46-link 48-contact sensor

50-control unit 52-actuator

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a side view partially showing a state in which the tailgate is normally closed according to the present invention, FIG. 3 is a side view partially showing a state in which the tailgate shown in FIG. 2 is normally opened, and FIG. Fig. 2 is a side view partially showing a state in which the tailgate shown in Fig. 1 is folded open.

As shown in the drawing, the tailgate 10, which is opened and closed in a vertical rotational manner with respect to the vehicle body, has a hinge point H fixed to the vehicle body side at a portion adjacent to the roof panel 12. It is pivotally installed, and the tail gate 10 is supported by opening the quarter panel 14 and the gas lifter 16 of the vehicle body.

In addition, the tail gate 10 includes an upper gate member 10a and a lower gate member 10b which are relatively rotatable through a hinge point H 'at an intermediate portion, and the hinge point H ″. Is fixed on the lower gate member 10b to rotatably support the upper gate member 10a.

Accordingly, the upper end portion of the upper gate member 10a is rotatably installed via the hinge point H fixed to the vehicle body side, and the lower gate member 10b is hinge point H 'fixed thereto. It is installed to be rotatable with respect to the upper gate member (10a) through,

Here, the lower gate member 10b at the upper end of the lower gate member 10b avoids the interference with the upper gate member 10a when the lower gate member 10b is rotated relative to the upper gate member 10a through the hinge point H '. The inclined surface 10c in which a part of the member is cut out is formed so that it may be.

In addition, the tail gate 10 including the upper gate member 10a and the lower gate member 10b capable of relative rotation through the hinge point H 'is a tailgate 10 at a folding position that is pivotally folded. ) And the locking unit 20 for appropriately switching the relative rotation of the tailgate 10 divided up and down according to the operation of the operating unit 18 to a restrained state or a released state. It is configured to include.

Meanwhile, when the lower gate member 10b is rotated and folded with respect to the upper gate member 10a, a guide part 22 for guiding the folded portion of the tail gate 10 divided up and down is added. The guide part 22 guides the lower gate member 10b appropriately when the lower gate member 10b is rotated with respect to the upper gate member 10a with respect to the hinge point H 'to the upper gate member 10a. The rotation of the lower gate member 10b is maintained in a normal state.

Here, the operation unit 18 is installed on the lower gate member (10b) to move inwards, and the movable rod 24 having a form in which one side is exposed to the outside and the hinge point is pressed by the movable rod 24 (1) restoring the hook rod (26) rotated through the (H "), and the first restoration to support the hook rod 26 at the lower side of one side of the hook rod 26, as well as the movable rod (24). It comprises a fixed rod 28a for installing the spring 28 on the outer circumferential surface.

The locking portion 20 is formed of a latch rod 30 fixed to the upper gate member 10a by forming a gear tooth 30a that is engaged with the locking rod 26 of the operation unit 18.

To this end, a protruding portion 26a for engaging with the gear teeth 30a of the latch rod 30 is integrally formed at one end of the catching rod 26, and the other end of the catching rod 26. The groove 26b for coupling with the fixed rod 28a is integrally formed therein, and the groove 26b is the first restoration installed on the outer circumferential surface on the fixed rod 28a when the locking rod 26 is rotated. It is adapted to compress the spring 28.

In addition, the guide portion 22 is a support rod 32 is fixed to one end on the lower gate member (10b) and the other end is elastically accommodated into the upper gate member (10a), and the support And a second restoring spring 34 fitted to an outer circumferential surface of the rod 32 so that both ends are faced and supported between the upper gate member 10a and the lower gate member 10b.

To this end, a predetermined accommodation space portion 10d for accommodating the support rod 32 is formed in the upper gate member 10a, and the accommodation space portion 10d is the hinge point H '. When the lower gate member (10b) is rotated with respect to the upper gate member (10a) through the folded to accommodate the support rod (32).

Accordingly, the guide part 22 properly guides the lower gate member 10b when the lower gate member 10b is rotated with respect to the upper gate member 10a with respect to the hinge point H ', so that the upper gate member ( Maintaining the rotation of the lower gate member 10b with respect to 10a in a normal state, as well as the rotational speed thereof during the rotation of the lower gate member 10b through the elasticity of the second restoring spring 34. It is also delayed to act as a kind of damper to prevent sudden contact with the upper gate member (10a).

In addition, the support rod 32 and the receiving space portion 10d are each formed in a curved shape. The lower gate member 10b is rotated based on the hinge point H 'so that the upper gate member 10a is rotated. In the case of folding about), a smooth coupling between the support rod 32 and the receiving space portion 10d is considered.

On the other hand, the restoring unit 36 to automatically unfold the lower gate member (10b) folded when the upper gate member (10a) and the lower gate member (10b) is folded and opened, respectively when closed. The restoring unit 36 includes: a first pinion 38 fixed on the hinge point H, a second pinion 40 fixed on the hinge point H ', The first pinion 38 and the second pinion 40 are configured to include a first rack bar 42 and a second rack bar 44, respectively.

In addition, a connection link 46 is provided between the first rack bar 42 and the second rack bar 44, so that the first rack bar 42 and the second rack bar 44 are tailgates. 10 is moved in the axial direction by the first pinion 38 and the second pinion 40, respectively, to automatically unfold the folded lower gate member 10b of the tailgate 10.

In addition, a contact detection sensor 48 is installed at the front end of the first rack bar 42, the control unit 50 is connected to the contact detection sensor 48, the control unit 50 is The actuator 52 coupled to the first rack bar 42 and the connecting rod 52a is connected, and the control unit 50 is connected to the first rack bar 42 from the touch sensor 48. When the spaced apart state is detected, the operation of the actuator 52 is controlled to engage the first rack bar 42 on the first pinion 38.

Hereinafter, the operation of the tailgate folding device according to the present invention will be described in detail.

First, when the tail gate 10 is lifted upward in a normal state and opened, the upper gate member 10a is opened while being rotated around the hinge point H as shown in FIG. The lower gate member 10b is rotated and opened together with the upper gate member 10a in a state where the lower gate member 10b is not rotated about the hinge point H '.

However, when the tail gate 10 is opened in a place where the height of the ceiling is low, the tail gate 10 may be opened to some extent to expose the operation portion 18 exposed to the outside of the lower gate member 10b. When the movable rod 24 is pressed, the engagement rod 26 is rotated through the hinge point H ", and the engagement between the latch rod 30 of the lock portion 20 is terminated.

Thereafter, as shown in FIG. 4, the lower gate member 10b is rotated with respect to the upper gate member 10a about its hinge point H 'by its own weight, and is folded by a predetermined angle. At this time, if the operating force applied to the movable rod 24 of the operation unit 18 is released, the movable rod 24 is raised to the restoring force of the first restoring spring 28, and thus the engaging rod 26 FIG. 7 shows the folded state of the lower gate member 10b with respect to the upper gate member 10a while being engaged with the latch rod 30 of the locking part 20 while being rotated in the opposite direction about the hinge point H ″. Will be maintained.

At this time, the second rack bar 44 engaged with the second pinion 40 fixed on the lower gate member 10b on the hinge point H 'is rotated together with the rotation of the lower gate member 10b. Being pulled by the second pinion 40 (the right side of the drawing), and the first rack bar 42 connected to the second rack bar 44 via the link link 46 also moves in the same direction. In response to the movement of the first rack bar 42, the touch sensor 48 detects the disconnection of the first rack bar 42 and sends a signal to the control unit 50. The unit 50 controls the actuator 52 to push the first rack bar 42 through the connecting rod 52a, so that the first rack bar 42 is fixed to the vehicle body. It is meshed with the pinion 38.

On the other hand, when the lower gate member 10b is rotated with respect to the upper gate member 10a via the hinge point H 'as described above, the guide portion 22 fixed to the lower gate member 10b is folded. The supporting rod 32 is accommodated in the receiving space portion 10d formed in the upper gate member 10a and guided or constrained so that accurate rotation can be performed along a predetermined trajectory in the rotation of the lower gate member 10b.

In this case, the guide part 22 applies a resistance force through the elasticity of the second restoring spring 34 to the lower gate member 10b which is rotated about the hinge point H 'with respect to the upper gate member 10a. Since the lower gate member 10b is not suddenly rotated by its own weight.

In the case where the lower gate member 10b is opened in the folded state at the hinge point H 'as described above, when the tail gate 10 is closed, the lower gate member 10b is first opened. When pulled down to rotate, the upper gate member 10a is rotated downward about the hinge point H.

At this time, the first rack bar 42 engaged with the first pinion 38 fixed on the hinge point H fixed to the vehicle body passes through the gear teeth of the pinion while being engaged with the first pinion 38. The first rack bar 42 and the second rack bar 44 connected through the connecting link 46 are also subjected to the acting force in the same direction.

Accordingly, the second rack bar 44 applies a rotational force to the second pinion 40 engaged with the second rack bar 44, and the second pin bar 40 fixed on the lower gate member 10b is the second rack bar. Since the lower gate member 10b is eventually rotated because rotation is impossible in the movement of the 44, the lower gate member 10b is lifted about the hinge point H 'to the upper gate member 10a. Is rotated in the unfolding direction.

When the lower gate member 10b is rotated in the unfolding direction with respect to the upper gate member 10a as described above, the locking rod 26 of the locking portion 20 is the gear tooth 30a of the latch rod 30. Since the lower gate member 10b can be rotated in a smoothly unfolding direction about the hinge point H '.

As a result, the tail gate 10 can be opened in a folding manner, and in the case of closing in the folded state, the tail gate 10 can be simply closed in the direction of closing the tail gate 10 without separately expanding the folded lower gate member 10b. When the lower gate member 10b is rotated in the unfolding direction with respect to the upper gate member 10a, the tail gate 10 is closed.

As described above, according to the tailgate folding device of a vehicle according to the present invention, the tailgate 10 that is opened and closed in a vertical rotational manner with respect to the vehicle body has a structure that can be folded through a hinge point H ', Even when the tail gate 10 is opened with a low ceiling, when the tail gate 10 is folded, interference between the ceiling and the outer lower end portion of the tail gate 10 can be avoided. 10) damage can be prevented.

In addition, when the tail gate 10 is opened in a folded state and then closed again, the lower gate member 10b is automatically unfolded with respect to the upper gate member 10a even when only the pressing force is applied to the lower gate member 10b. As the closing operation of the tail gate 10 may be performed while rotating in the direction, the user's convenience may be achieved.

Claims (8)

Tailgate 10 which is divided up and down by the hinge point (H ') and folded in a folding manner, An operation unit 18 provided at the folded portion of the tailgate 10 to control the folding of the tailgate 10; Locking part 20 which suitably switches the relative rotation of the tailgate 10 divided up and down according to operation | movement of this operation part 18 from restraint state to a release state, and Tailgate folding device of the vehicle, characterized in that it comprises a restoring unit 36 for automatically unfolding the folded portion when the tailgate is closed in the open state. According to claim 1, wherein the tail gate 10 is composed of an upper gate member (10a) and a lower gate member (10b) having a hinge point (H ') of the folded portion, the lower gate member (10b) of An inclined surface 10c having a part of the member cut out is formed at an upper end thereof so as to avoid interference with the upper gate member 10a when the lower gate member 10b is rotated through the hinge point H '. Tailgate folding device for cars. 2. The operating unit (18) according to claim 1, wherein the operation unit (18) is pushed by the movable rod (24) and the movable rod (24) installed to be movable on the lower gate member (10b). Tail lock folding device of the vehicle, characterized in that it comprises a hook rod 26 and a first restoring spring (28) installed to elastically support it at the lower end of the movable rod (24). The latch rod (30) of claim 1, wherein the lock portion (20) forms a gear tooth (30a) engaged with the catching rod (26) of the operation portion (18) and is fixed on the upper gate member (10a). Tailgate folding device of a vehicle, characterized in that consisting of. According to claim 1, One end is fixed on the lower gate member (10b) and the other end is fixed to the folded portion of the tail gate 10 is pivotally divided up and down via the hinge point (H '). Both ends are adhered between the support rod 32 elastically received into the upper gate member 10a and the outer circumferential surface of the support rod 32 and between the upper gate member 10a and the lower gate member 10b. And a guide portion 22 including a second restoration spring 34 to be supported and supported, and an accommodation space portion 10d formed on the upper gate member 10a to accommodate the support rod 32 therein. Tailgate folding device of a car, characterized in that the. The method of claim 5, wherein the support rod 32 and the receiving space (10d) is the lower gate member 10b is rotated with respect to the hinge point (H ') when folded with respect to the upper gate member (10a). Tailgate folding device for a vehicle, characterized in that each formed in a curved shape in consideration of the smooth coupling between them. The first pinion (38) of claim 1, wherein the restoring portion (36) is fixedly coupled to a hinge point (H) fixed to the vehicle body to enable the tail gate 10 to be rotatable with respect to the vehicle body. A second pinion 40 fixedly coupled to the hinge point H ', a second rack bar 44 engaged with the second pinion 40, and a connection link to the second rack bar 44; 46) The tailgate folding device of a vehicle, characterized in that it comprises a first rack bar (42) which is selectively engaged with the first pinion (38) connected via a medium. The method according to claim 7, wherein the front end of the first rack bar 42 is provided with a touch sensor 48, the touch sensor 48 is connected to a control unit 50, the control unit ( An actuator 52 coupled to the first rack bar 42 and the connecting rod 52a is connected to the first 50 so that the control unit 50 is connected to the first rack bar from the touch sensor 48. The tailgate folding of the vehicle, characterized in that the first rack bar 42 is engaged on the first pinion 38 by controlling the operation of the actuator 52 when detecting the spaced apart from the 42. Device.