DOOR FOR VEHICLE

A door of a vehicle may include a first door module forming a door skeleton, and a second door module coupled with the first door module and forming a door window wherein the second door module includes a relatively lightweight material as compared to the first door module, reducing weight and cost of the door for a vehicle.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to Korean Patent Application No. 10-2017-0168216 filed on Dec. 8, 2017, the entire contents of which is incorporated herein for all purposes by this reference.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a door of a vehicle. More particularly, the present invention relates to a door of a vehicle capable of reducing weight and cost and improving assembling workability.

Description of Related Art

Generally, a vehicle door is provided with a door window to improve the ventilation of the internal to the vehicle, the visibility and the habitability of the passenger, and is usually including a steel material in consideration of collision stability and the like.

That is, the door external panel and the door internal panel of the steel material are coupled to each other to form a door skeleton, and a door frame is coupled to the upper portion of the panels to form a door window. A door module provided with a regulator for raising and lowering the door window glass is built in the internal space formed by the combination of the door external panel and the door internal panel.

Furthermore, the door internal panel is combined with a door trim as an internal material provided with a door switch or window switch, and an impact beam is disposed close to the door external panel to increase the side impact rigidity of the door.

However, in the conventional door structure as described above, since the door internal panel and the door frame are usually made of steel, the weight of the door is increased. Since the door internal panel and the door module are separately manufactured so that the number of parts of the door is increased, it is necessary to develop a more innovative vehicle door by reducing the number of parts of the door and reducing the weight of the material.

BRIEF SUMMARY

Various aspects of the present invention are directed to providing a door of a vehicle configured for reducing the number of parts of the door by modularizing a large number of parts forming the door, reducing the weight by making a portion of the door module including a relatively lightweight material instead of a steel material, and reducing assembly man hour and cost.

A door of a vehicle according to an exemplary embodiment of the present invention may include a first door module forming a door skeleton, a second door module coupled with the first door module and forming a door window. The second door module may include a relatively lightweight material as compared to the first door module.

The first door module may be formed of a metal material, and the second door module may be formed of a plastic material.

The second door module may be coupled with a door trim.

The first door module may include a door external panel disposed outside a passenger compartment, a door internal panel disposed inside the passenger compartment with respect to the door external panel, a door frame coupled to the top portion of the door internal panel, and an impact beam coupled to the door internal panel.

An opening portion may be provided at a center portion of the door internal panel.

A reinforcing beam may be coupled to the door internal panel in a form that traverses a portion of the opening portion of the door internal panel.

The door frame may include a belt line portion disposed in a belt line portion of the door and two pillar portions extending at both end portions of the belt line portion in the height direction of the vehicle to form an H-shape.

The second door module may include a module body of the panel shape, and a door window portion forming the door window and being integrally formed with the module body.

The door window portion may include a roof portion corresponding to the roof profile of a vehicle body and a center pillar portion corresponding to a center pillar of the vehicle body when the door is closed to the vehicle body.

When the second door module is coupled with the first door module, an internal space is formed therebetween, and a door glass for opening or closing the door window may be inserted into the internal space to be vertically movable.

At least one door checker mounting boss for mounting a door checker may be formed to be integrally protruded toward the outside of a passenger compartment at the external surface of the second door module facing the outside of the passenger compartment.

At least one assemble protrusion inserted and assembled into an assemble hole formed in the door internal panel, may be integrally protruded toward the outside of the passenger compartment near a belt line of the external surface.

An assemble boss for engaging with the door internal panel may be formed to be integrally protruded toward the outside of the passenger compartment at a lower portion of the external surface.

A rigid protruding portion may be formed at a lower portion of the door internal panel. The rigid protruding portion may be engaged with the assemble boss for assembling the door internal panel with the second door module. An extending section may be formed between the rigid protrude portion and the door external panel.

At least one reinforcing rib may be provided near the roof portion, the center pillar portion and a belt line of the second door module.

The reinforcing rib may include a first reinforcing rib extending in the longitudinal direction of a vehicle and a second reinforcing rib extending in the height direction of a vehicle. The first and second reinforcing ribs may be disposed to form lattice pattern together.

The external surface of the center pillar portion may be joined with a garnish. A receiving groove may be formed between the garnish and the center pillar portion. A door glass run may be inserted into the receiving groove.

The door for a vehicle according to an exemplary embodiment of the present invention may include the first door module made of metal material, the second door module made of lightweight material compared to steel, and a door trim, reducing the number of parts and weight and cost of the door of a vehicle.

Furthermore, since only three door modules need to be assembled to each other, it is possible to reduce assemble man hour, improve assemble workability, and improve the appearance of the door of a vehicle with the simple design of the modules.

DETAILED DESCRIPTION

Exemplary embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

Since size and thickness of each component illustrated in the drawings are arbitrarily represented for convenience in explanation, the present invention is not limited to the illustrated size and thickness of each component and the thickness is enlarged and illustrated to clearly express various parts and areas.

Referring toFIG. 1andFIG. 2, a door of a vehicle according to an exemplary embodiment of the present invention may include a first door module having a door external panel1, a door internal panel2, a door frame3and an impact beam4, a second door module5, and a door trim6as a third door module.

The door external panel1may be disposed outside a passenger compartment and formed into a perfect panel shape in consideration of door rigidity. The door internal panel2may be disposed inside the passenger compartment with respect to the door external panel1and have an opening portion21at a center portion thereof to reduce weight and cost.

The door external panel1and the door internal panel2may be formed of metal material as steel.

A reinforcing beam22may be coupled to the door internal panel2in a form that transverse a portion of the opening portion21.

When the door internal panel2is combined with the door external panel1, the reinforcing beam22may be disposed close to the door external panel1to support the door external panel1.

The door frame3may be coupled to an upper portion of the door internal panel2.

The door frame3may include a belt line portion31disposed in the belt line portion of the door and two pillar portions32and33extending at both end portions of the belt line portion31in the height direction of the vehicle to form an H-shape.

That is, the conventional door frame has a roof portion corresponding to the roof profile of the vehicle body and a center pillar portion corresponding to the center pillar profile of the vehicle body when the door is closed, while the door frame3according to an exemplary embodiment of the present invention removes the conventional roof portion and the center pillar portion.

Therefore, the door frame3according to an exemplary embodiment of the present invention may reduce weight and cost as compared to the conventional door frame.

The impact beam4may be coupled to the door internal panel2and disposed close to the door external panel1, absorbing the impact at the side collision and blocking the intrusion of the door into the passenger compartment.

The impact beam4and the door frame3are coupled to the door internal panel2and the door internal panel2is coupled to the door external panel1so that the first door module as a door skeleton may be formed.

The second door module5may include a relatively lightweight material, for example, a plastic material, as compared to the first door module.

Referring toFIG. 2andFIG. 4, the second door module5may include a module body51of the panel shape, and a door window portion53forming a door window52and being integrally formed with the module body51.

The door window portion53may include a roof portion531corresponding to the roof profile of the vehicle body and a center pillar portion532corresponding to a center pillar profile of the vehicle body when the door is closed to a vehicle body.

When the second door module5is coupled with the first door module, an internal space is formed therebetween. A door glass7for opening or closing the door window52may be inserted into the internal space to be vertically movable via a lifting device such as regulator.

Referring toFIG. 4, at least one door checker mounting boss55for mounting a door checker8may be formed to be integrally protruded toward the outside of the passenger compartment at the external surface54of the second door module5facing the outside of the passenger compartment.

Furthermore, at least one assemble protrusion57, which is inserted into an assemble hole formed at the door internal panel2and assembled thereto, may be formed to be integrally protruded in the vicinity of the belt line portion at the external surface54, and an assemble boss58for assembling with the door internal panel2through fastener F may be formed to be integrally protruded toward the outside at a lower portion of the external surface54, as shown inFIG. 5.

Referring toFIG. 5, a rigid protruding portion23may be formed in a lower portion of the door internal panel2. The rigid protruding portion23may be engaged with the assemble boss58of the second door module5via the fastener F.

When the door internal panel2is coupled to the door external panel1, the rigid protruding portion23is spaced from the door external panel1so that an expanded section S may be formed between the rigid protruding portion23and the door external panel1to increase rigidity. The rigid protruding portion23is configured to increase the coupling rigidity between the door internal panel2and the second door module5.

Referring toFIG. 4andFIG. 6,FIG. 7, andFIG. 8, at least one reinforcing rib9may be formed at the roof portion531, the center pillar portion532and the belt line portion of the second door module5.

The reinforcing rib9may be formed by a first reinforcing rib91extending in the longitudinal direction for a vehicle and a second reinforcing rib92extending in the height direction for a vehicle, which are disposed to form lattice pattern.

The reinforcing rib9is configured to reinforce the rigidity of the second door module5.

A garnish65may be coupled to an external surface of the center pillar portion532to improve the external appearance of the door.

A receiving groove may be formed between the garnish65and the center pillar portion532. A door glass run15, which is configured to guide and support the door glass7, may be inserted into the receiving groove.

Furthermore, a door weather strip25may be attached to the second door module5and a vehicle body weather strip35may be attached to a vehicle body35, so that the air-tightness may be maintained when the door is closed.