Cargo loading apparatus of vehicle luggage room

A cargo loading apparatus of a vehicle luggage room may include a rail mechanism including a fixation rail fixed to a rear back beam and a movable rail that moves forward and/or rearward along the fixation rail, a pair of left and right side plates connected with the movable rail to move together with the movable rail, an upper plate in which a rear side surface is rotatably connected with the side plates through a hinge stopper to be rotatable substantially perpendicularly to the side plates and a rear end is connected with a bumper door, and a lifter installed so that one end of which is connected to a side plate of the side plates and the other end of which is connected to the upper plate, the lifter maintaining a rotational state of the upper plate while a length of the lifter is varied when the upper plate rotates upward around the hinge stopper.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority of Korean Patent Application Number 10-2013-0157634 filed on Dec. 17, 2013, the entire contents of which application are incorporated herein for all purposes by this reference.

BACKGROUND OF INVENTION

1. Field of Invention

The present invention relates to a cargo loading apparatus of a vehicle luggage room, and more particularly, to a cargo loading apparatus of a vehicle luggage room that can conveniently load a large-capacity cargo in the luggage room.

2. Description of Related Art

Vehicles which have been developed in recent years have been developed by considering a practical aspect as well as stability and fuel efficiency as one of important tasks and a storage box2has been developed, which is capable of storing articles using an internal space of a rear bumper1corresponding to an available space of a vehicle as illustrated inFIG. 1as a part thereof.

The storage box2may be used by opening/closing only a bumper door3with being stored in the rear bumper1and the storage box2is drawn rearward from the rear bumper1to be used together with the bumper door3as necessary.

However, the storage box structure in the related art, in which the storage box2is stored in the rear bumper1to store a cargo, has a disadvantage that it is easy to store only a luggage having a small cargo and it is difficult to store a large-capacity cargo having a large volume.

In particular, in a vehicle having a large vehicle height such as vehicles for leisure (including a recreational vehicle, a sport utility vehicle, and the like), the cargo needs to be loaded in the luggage room and in the case of a large-capacity cargo having a large volume and a heavy weight, it may be difficult to load the large-capacity cargo in the luggage room by raising the large-capacity cargo only by user's force to a predetermined height.

SUMMARY OF INVENTION

The present invention has been made in an effort to provide a cargo loading apparatus of a vehicle luggage room that can more conveniently load a cargo at the time of loading a large-capacity cargo in the luggage room of a vehicle to improve user's convenience.

In various aspects, the present invention provides a cargo loading apparatus of a vehicle luggage room, including: a rail mechanism including a fixation rail fixed to a rear back beam and a movable rail that moves forward and/or rearward along the fixation rail, a pair of left and right side plates connected with the movable rail to move together with the movable rail, an upper plate in which a rear side surface is rotatably connected with the side plates through a hinge stopper to be rotatable substantially perpendicularly to the side plates and a rear end is connected with a bumper door, and a lifter installed so that one end of which is connected to a side plate of the side plates and the other end of which is connected to the upper plate, the lifter maintaining a rotational state of the upper plate while a length of the lifter is varied when the upper plate rotates upward around the hinge stopper.

The bumper door may be configured to be separable from the rear bumper, and to be installed coplanarly with the rear bumper at ordinary times while not loading a cargo such that the bumper door and the rear bumper collectively performs a function of the rear bumper at the ordinary times.

The movable rail, and the side plate and the upper plate may be stored in an internal space of the rear bumper when the bumper door performs a function of the rear bumper and are drawn rearward together when the bumper door is drawn rearward from the rear bumper.

The upper plate may include a rear plate connected with the bumper door, and a front plate connected with the rear plate to be slidably-movable and rotatable with respect to the rear plate. A top of the lifter may be connected to the front plate.

A joining protrusion may be provided on any one of the rear plate and the front plate and a joining groove into which the joining protrusion is inserted may be provided on the other one of the rear plate and the front plate so that the rear plate and the front plate move together when the upper plate moves for rearward drawing or forward storing, and the joining protrusion and the joining groove may be detachably engaged and joined to each other.

The front plate may move forward from the rear plate after the top of the lifter is separated from the front plate. Hinge protrusions may be provided on rear lateral surfaces of the front plate for forward and rearward movement and rotation of the front plate with respect to the rear plate, and a guide groove to which a hinge protrusion of the hinge protrusions moves in a longitudinal direction may be provided on the rear plate. A front end portion of the front plate may rotate toward the side plates around the hinge protrusions and thereafter, may be fixed to the side plates to support the rear plate.

According to the present invention, a user can load a cargo using a plate which is tilted upward after drawing the cargo rearward from a rear bumper without directly raising and loading the cargo at the time of loading a large-capacity cargo having a large volume and a heavy weight in a luggage room of a vehicle. As such, the cargo loading apparatus of the present invention significantly improves user's convenience and in particular, is useful to female drivers and seniors.

DETAILED DESCRIPTION

The cargo loading apparatus of the luggage room according to various embodiments of the present invention is stored and kept in an internal space of a rear bumper1at ordinary times and drawn rearward from the rear bumper1while in use for loading a cargo, as illustrated inFIGS. 2 to 9.

That is, the cargo loading apparatus of the vehicle luggage room according to the present invention includes a rail mechanism10including a fixation rail11fixed to a rear back beam4and a movable rail12that moves forward and rearward along the fixation rail11; a pair of left and right side plates20installed in parallel or substantially parallel in front and rear directions at left and right sides of the movable rail12and connected with the movable rail12through a connection bar21to move in the front and rear directions together with the movable rail12; an upper plate30in which a rear lateral surface is rotatably connected with the side plate20through a hinge stopper22to be rotatable vertically or substantially perpendicularly to the side plate20and a rear end is connected with a bumper door3; and a lifter40installed so that one end of which is connected to the side plate20and the other end of which is connected to the upper plate30and maintaining a rotational state of the upper plate30while the length is varied when the upper plate30rotates upward around the hinge stopper22.

The bumper door3is configured to be separated from the rear bumper1by cutting a part of the rear bumper1and as illustrated inFIGS. 2 and 3, the bumper door3is formed coplanarly with the rear bumper1so as to perform a function of the rear bumper1at ordinary times without loading the cargo and the bumper door3is used by being drawn rearward from the rear bumper1as illustrated inFIG. 4when being used for loading the cargo.

Further, the movable rail12, and the side plate20and the upper plate30are stored in an internal space of the rear bumper1when the bumper door3performs a function of the rear bumper1at ordinary times and drawn rearward together when the bumper door3is drawn rearward from the rear bumper1.

Accordingly, in case the user pulls and draws reward the bumper door3as illustrated inFIG. 4in order to load a large-capacity cargo in the luggage room of the vehicle in the state at ordinary times when the bumper door3performs the function of the rear bumper1as illustrated inFIGS. 2 and 3, the movable rail12, the side plate20and the upper plate30are drawn rearward together with the bumper door3.

When the user presses the bumper door3downward to rotate the bumper door3as illustrated inFIG. 5after drawing the bumper door3rearward as illustrated inFIG. 4, the upper plate30connected with the bumper door3rotates with a rear side moving down and a front side moving up around the hinge stopper22.

In this case, a lifter40that connects the side plate20and the upper plate30stably supports the upper plate30which rotates while the length is increased with rotation of the upper plate30, and as a result, the upper plate30continuously keeps a rotation state by supporting force of the lifter40.

Meanwhile, the hinge stopper22may serve as a rotational center of the upper plate30and restrain the upper plate30at a maximum rotational angle of the upper plate30. In addition, the lifter40may be any one of a gas lifter, a hydraulic lifter, and a pneumatic lifter, or the like.

After the upper plate30is rotated with a front portion of the upper plate30being lifted as illustrated inFIG. 5, a cargo to be loaded is laid on the upper plate30as illustrated inFIG. 6and thereafter, pushed up to load the cargo in the luggage room5of the vehicle.

Accordingly, according to various embodiments of the present invention, as the user does not need to personally raise and load the cargo when loading a large-capacity cargo having a large volume and a heavy weight in the luggage room, user's convenience may be significantly improved and in particular, a woman driver or an old age driver may usefully use the cargo loading apparatus.

Meanwhile, according to various embodiments of the present invention, as a scheme for increasing the supporting force of the upper plate30for the weight of the cargo, the upper plate30may be separated into a rear plate31and a front plate32and a rotational state of the rear plate31may be supported using the front plate32. That is, the upper plate30according to various embodiments of the present invention may include a rear plate31connected with the bumper door3and a front plate32connected with the rear plate31to be slide-movable and rotatable to the rear plate31.

In this case, the top of the lifter40is connected to the front plate31, and when the front plate32moves forward or rotates to the rear plate31, the top of the lifter40is separated from the front plate32.

In addition, if the upper plate30is separated into the rear plate31and the front plate32, the rear plate31and the front plate32may move together when the upper plate30moves for rearward drawing and forward storing together with a bumper cover3. Therefore, to this end, a joining protrusion51is provided on the rear plate31and a joining groove52into which the joining protrusion51is inserted is provided on the front plate32as illustrated inFIG. 9. In some embodiments, the joining groove52is provided on the rear plate31and the joining protrusion51is provided on the front plate32.

As a structure in which the joining protrusion51and the joining groove52are engaged and joined separably from each other, additional or optional separable joining means may be used instead of the structure of the joining protrusion51and the joining groove52.

Further, hinge protrusions53may be provided on both rear lateral surfaces of the front plate32for forward and rearward movement and rotation of the front plate32to the rear plate31, and a guide groove54to which the hinge protrusion53may move in a longitudinal direction may be provided on the rear plate31.

A rail structure may be used for the forward and rearward movement of the front plate32and in this case, an additional rotation structure needs to be provided for the rotation of the front plate32.

In addition, after a front end portion of the front plate32rotates or moves toward the side plate20as illustrated inFIG. 8, the front plate32fixes a front end portion of the front plate32onto the side plate20so as to easily support the rear plate31.

As described above, according to various embodiments of the present invention, the user can load the cargo using a plate which is tilted upward after drawing the cargo rearward from the rear bumper1without directly raising and loading the cargo when loading the large-capacity cargo having the large volume and the heavy weight in the luggage room of the vehicle. As such, the cargo loading apparatus of the present invention significantly improves user's convenience and in particular, is useful to female drivers and seniors.

For convenience in explanation and accurate definition in the appended claims, the terms “front” or “rear”, “left” or “right”, and etc. are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.