KR20020022292A - A Separated Upper/Lower Tailgate in Vehicle - Google Patents

Abstract

PURPOSE: A split tailgate for a vehicle is provided to reduce fatigue by inputting and outputting cargo conveniently, and to improve the quality by making the best use of space with dividing the tailgate into upper and lower parts. CONSTITUTION: A split tailgate is composed of an upper tailgate(31) opened upward and closed by a first hinge(3) and a gas lift(15), and a lower tailgate(32) opened and closed downward by a second hinge(32a) and a buffering unit(40). The split tailgate is divided into upper and lower parts, and turned around the hinge in a rear roof panel(1) of a vehicle. The lower tailgate is leveled with the vehicle body in opening, and fatigue is relieved in loading or unloading cargo into the vehicle. The quality is improved with enlarging the interior of the vehicle in opening the lower tailgate.

Description

A separate upper / lower tailgate in vehicle

The present invention relates to an upper and lower two-stage detachable tailgate of a vehicle, and in particular, to separate the tailgate of a multipurpose vehicle such as multi purpose vehicles (MPV) or sports utility vehicles (SUV) in the up and down directions. The present invention relates to an upper and lower two-stage detachable tailgate for expanding and improving user convenience.

Looking at recent automobile demand trends, most of the sales vehicles are recreational vehicles (RVs), which are economic and active, and consumers also want multi-purpose vehicles such as RVs that provide practical and convenient convenience.

In general, an ATV is a recreational vehicle that is usually used as a vehicle for commuting, and is useful for spending time outside with family members on weekends. Most of these ATVs are arranged in three rows of seats, and tailgates serving as doors are provided at the rear of the space in which the last third seat is installed.

The tailgate of such an ATV is conventionally a single retractable type, in which the hinge 3 installed in the rear loop 1 is orthogonally pivoted upwardly on the rotation axis as shown in FIGS. 1A and 1B. The upward single retractable tailgate 10 may also rest in the shade formed by the tailgate 10 by opening the tailgate 10 outdoors in addition to its essential function as a door for entry and exit.

The detailed configuration and operation of the conventional upward single retractable tailgate is shown in detail in FIG. 1B, where the single retractable tailgate 10 bonded to the outer panel 10a and the inner panel 10b is hand-held. When an external force is applied, it rotates perpendicularly upward through the hinge 3 of the rear roof panel 1. In addition, the tail gate 10 is easily lifted up and down, and the gas lift 15 for maintaining the open state of the tail gate 10 even after releasing the external force after the lifting is completed is one end of the tail gate 10 The other end is fastened to the rear of the car body.

When closing the tail gate 10, an external force is applied again to overcome the gas pressure of the gas lift 15, and then closed downward.

However, such a conventional upward single retractable tailgate is not only inconvenient for entering and exiting cargo, but also has a problem in that it does not meet consumer demand for an ATV because there is no convenience other than a simple shading function even when the tailgate is opened. .

The present invention has been proposed to solve the inconveniences and problems described above, and its purpose is to separate the tailgate mounted on the rear of the vehicle in two stages in the up and down directions, thereby opening the lower tailgate to open the cargo. It is to provide a multi-purpose vehicle tailgate for a more versatile purpose by making fatigue easier by entering / exiting and reducing fatigue and by using a wider interior space in the outdoors.

1A is a perspective view of an ATV equipped with a conventional upward single retractable tailgate;

Figure 1b is a schematic diagram showing a conventional upward single retractable tailgate,

2A is a perspective view of an ATV equipped with a tailgate according to the present invention;

Figure 2b is an enlarged rear view of the upper, lower two-stage detachable tailgate mounted to the rear of Figure 2a,

Figure 2c is a schematic diagram showing a state in which the upper and lower two-stage detachable tailgate opened and closed according to the present invention,

Figure 3a is a schematic diagram showing the state of the shock absorber for opening and closing when the lower tailgate of the present invention,

Figure 3b is a schematic diagram showing the state of the shock absorber for opening and closing when the lower tailgate of the present invention is closed.

* Description of the symbols for the main parts of the drawings *

1: Rear roof panel 3: 1st hinge

15: gas lift 31: upper tail gate

32: lower tail gate 32a: second hinge

40: shock absorber 42: cylinder

42a, 42b: Air hole 45: Piston

47: coil spring 49: steel wire

The upper and lower two stage detachable tailgates of the present invention, which have been researched and developed to achieve the above object, in a tailgate pivoted to a vehicle rear roof panel via a hinge, the tailgate is divided into two stages of a hinge and a gas. The upper tailgate is opened and closed upwards via a lift, and the lower tailgate is opened and closed downwards via a hinge and a shock absorber.

Hereinafter, the two-stage detachable tailgate of the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2a is a perspective view showing a multi-purpose vehicle equipped with a tailgate according to the present invention, Figure 2b is an enlarged rear view of the upper and lower two-stage detachable tailgate mounted to the rear of Figure 2a, Figure 2c It is a schematic diagram showing a state in which the upper and lower two-stage detachable tailgates are opened and closed.

When the conventional single tailgate 10 is cut and separated in the horizontal direction when viewed from the rear, the tailgate 30 separated into two stages in the up and down directions is formed as shown in FIGS. 2A and 2B. The upper end of the two-stage split tailgate 30 is called the upper tailgate 31 and the lower part is called the lower tailgate 32. The opening and closing states of the upper and lower tailgates are well illustrated in FIG. 2C. As shown in Figure 2c, the upper tail gate 31 is the same as the conventional gas lift 15 is installed so that the upper and lower rotations through the hinge (3) and does not sag downwards, further description will be avoided. do. Therefore, the present invention will be described centering on the configuration and operation of the lower tail gate 32.

The lower tail gate 32 is rotated downward as shown in the drawing with the hinge 32a installed on the rear bumper 5 as the rotation axis in the state where the upper tail gate 31 is opened upward. do. If the lower tail gate 32 is pivoted downward only by the hinge 32a, the hinge 32a must bear the weight of the lower tail gate 32, and the lower tailgate 32 is opened / closed. Sudden opening may occur in the closing process, and the closing process requires a lot of force to lift the lower tail gate 32. Therefore, as a means for solving this, as mentioned earlier in the shock absorber is installed between the vehicle body and the rear tailgate 32, this section avoids the detailed description and illustration of the shock absorber in Figure 3a and It will be described in detail in Figure 3b. However, according to FIG. 2C, the opening and closing sequence of the tailgate 32 can be known, but the lower tail gate 32 is opened while the upper tail gate 31 is opened and the lower tail gate 32 is first closed. The upper tail gate 31 is closed.

Figure 3a is a schematic diagram showing the state of the opening and closing shock absorber when the lower tailgate of the present invention is opened, Figure 3b is a schematic diagram showing the state of the opening and closing shock absorber when the lower tailgate of the present invention is closed.

3A and 3B, it can be seen that the lower tail gate 32 is first rotated downward through the hinge 32a of the rear bumper 5 in the state where the upper tail gate 31 is opened. . In this case, the lower tail gate 32 in the open state is preferably in a horizontal state with the vehicle body. The reason for this is that when it is completely opened, it is necessary to achieve a horizontal state and maintain the horizontal state so that cargoes can be easily entered and lower during outdoor activities. This is because the space as much as the area of the tail gate 32 can be secured. Thus, when the lower tail gate 32 is opened, a shock absorber 40 which prevents a sudden opening and can be easily and smoothly operated with a small force when the door is closed, and maintains a horizontal state at the time of opening, The recess is fixed to the recess via a mounting hole 41.

The shock absorber 40 is configured as follows to perform a smooth operation. There is a cylinder 42 having a predetermined closed space, and air holes 42a and 42b through which air is allowed to enter and exit slowly are formed at both ends of the cylinder 42. On the other hand, the piston 45 accommodated in the cylinder 42 is in contact with the inner circumferential surface of the cylinder 42 and the outer circumferential surface of the piston 45 to maintain a certain degree of airtightness. In addition, the piston 45 is connected to a flexible steel wire (steel wire 49) connecting one end of the lower tail gate (32). The steel wire 49 must withstand the weight of the lower tail gate 32 as well as the various loads to be applied to the lower tail gate 32, that is, the load or weight that can be loaded on the vehicle. Even with this configuration, the space formed between the cylinder 42 and the upper portion of the piston 45 when the piston 45 moves downward by the steel wire 49 connected when the lower tail gate 32 is opened downward ( 43, a small amount of air is sucked through the upper air hole 42a, so that a slight vacuum is formed to partially buffer the air. In addition, in the space 44 formed between the cylinder 42 and the lower portion of the piston 45, since the compressed air is discharged by the piston 45 downward through the lower air hole 42b, this also has some buffering effect. You can get However, the coil spring having a predetermined modulus of elasticity in the closed space formed by the lower end of the piston 45 and the cylinder 42 to prevent sudden opening when the lower tail gate 32 is opened, and for more stable and smooth opening and closing operation. Installing 47 is more effective. By the coil spring 47 having elastic resilience, the lower tail gate 32 is opened more stably and smoothly when opened. However, it should be noted that the elastic modulus of the coil spring 47 should be designed in preparation for the weight of the lower tail gate 32. If the elastic modulus of the coil spring 47 is too large, the elastic repulsive force is also increased, so that the lower tail gate 32 may not be completely opened in a horizontal state and may be kept in an inclined state. Therefore, the coil spring 47 is compressed in the process of the lower tail gate 32 is rotated downward to more effectively buffer the lower tail gate 32 and the horizontal state when the lower tail gate 32 is fully open Should have a modulus of elasticity that can be maintained.

When the lower tail gate 32 is closed, a person lifts the lower tail gate 32 slightly by applying an external force, so that the lower tail gate 32 can be easily closed without applying a large force by the elastic repulsive force of the coil spring 47. At this time, since the vacuum is formed in the lower space 44 of the piston 45 and the air is compressed in the upper space 43, the air is gradually discharged through the upper air hole 42a, which is also the elasticity of the coil spring 47. The lower tailgate 32 is prevented from closing rapidly due to the repulsive force. In addition, bearings are installed on the fixing portions 32b of both lower end ends of the lower tail gates to which the steel wires 49 are connected to remove the interference by the steel wires when the lower tail gates 32 are opened and closed to extend the life of the steel wires.

For example, a process of loading and unloading cargo into a vehicle equipped with the upper and lower two-stage detachable tailgates having the above configuration will be described.

First, when the lock device (not shown) of the upper tail gate 31 is lifted upward and the lower tail gate 32 is opened, the steel wire 49 fixed to both ends of the lower tail gate 32 is opened. The piston 45 accommodated in the cylinder 42 through () is to be downwardly moved. At this time, the upper space 43 of the piston 45 is formed by the downward movement of the piston 45, the outside air is sucked through the upper air hole 42a formed in the cylinder 42, but the air hole 42a ) Is relatively small and flows in slowly. In addition, the lower space 44 of the piston 45 is discharged to the outside through the lower air hole 42b while being compressed by the piston 45 is the air is filled downward. However, this process alone can not expect a predetermined buffering effect, the kinetic energy of the lower tail gate 32 is largely buffered by the coil spring 47 having a predetermined elastic repulsive force installed in the lower end of the piston 45 coil coil spring Stored as compressed energy at 47. In this state, the lower tail gate 32 is in a horizontal state with the vehicle body so that the lower tail gate 32 does not need to bend when loading and unloading the vehicle. Pull up to 32) to lift it out. In addition, in the finished state, if the lower tailgate 32 is slightly lifted up, the piston 45 moves upward due to the elastic repulsive force of the coil spring 47 that has stored the compressive energy. The lower tail gate 32 can be closed. However, even when the lower tail gate 32 is closed by the vacuum formed in the lower portion of the piston 45 and the air compression of the upper portion is to close.

As described above, according to the upper and lower two-stage detachable tailgate according to the present invention, the lower tailgate of the lower part is opened to be horizontal with the vehicle body so that it is easier to work when entering or exiting cargo, thereby reducing fatigue and outdoors. In this case, the interior space is secured as much as the lower tail gate is opened, so the vehicle can be used more widely, which can contribute to improving the merchandise of the vehicle pursuing versatility and multifunctionality.

Claims (2)

In the tailgate rotated by the hinge to the vehicle rear roof panel (1), the tailgate is separated in two stages, the upper tailgate opening and closing upward through the first hinge (3) and the gas lift (15) Upper and lower two-stage detachable tailgate, characterized in that consisting of a lower tailgate 32 which is opened and closed in the downward direction via the 31 and the second hinge 32a and the shock absorber 40. The cylinder 40 of claim 1, wherein the shock absorber 40 of the lower tail gate 32 is fixed to a vehicle body and has a sealed space having air holes 42a and 42b formed in front and rear. The piston 45 is accommodated in the 42 and connected via the lower tail gate 32 and the steel wire 49 and the piston 45 is vertically reciprocated, and is accommodated in the cylinder 42 and installed below the piston 45 Upper and lower two-stage detachable tailgate, characterized in that composed of a coil spring (47) providing an elastic repulsive force to the piston (45).