KR19980011410U - Roof reinforcement structure of car - Google Patents

Abstract

The present invention relates to a roof reinforcement structure of an automobile, and more specifically, to reinforce the structure of the roof to increase rigidity, so that it is possible to effectively absorb and cushion the collision force or vibration generated from the vehicle body.

A reinforcement panel 30 is provided between the roof panel 10 and the front roof inner rail 20, and buffer means 40 and 50 are provided at one end thereof to provide rigidity and to enhance the safety of the passengers. And it relates to a loop reinforcement structure that can improve the ride comfort by removing noise.

Description

Roof reinforcement structure of car

1 is a perspective view of a vehicle showing the position of the subject innovation.

2 is a cross-sectional view taken along line A-A of FIG. 1 showing a loop structure of the present invention.

3 is a cross-sectional view showing another embodiment of the buffer means according to the present invention.

4 is a cross-sectional view showing a conventional loop structure.

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

1: Loop 10: Roof panel 20: Front loop inner rail

30 reinforcement panel 40 cushioning means 41 elastic member 42 rubber

43: fixed panel 44: support panel 45: shaft 50; pad

[Industrial use]

The present invention relates to a roof reinforcement structure of an automobile, and more particularly, to enhance rigidity by reinforcing the structure of the roof, effectively absorbing and cushioning vibration generated from the collision force or the vehicle body, and promoting passenger safety and body vibration. And to remove the noise relates to a loop reinforcement structure that can improve the ride comfort.

[Prior art]

In general, tests to ensure passenger safety in the event of a car crash include forward collisions and side impacts, which are important factors to secure car safety. We use as item of.

Most of the cars produced are actively applying shock mitigation structures for forward collisions and side impacts.

In fact, bumpers made of shock absorbing members such as urethane are installed at the front and rear of the vehicle as a shock reduction means against external collisions, and the side of the vehicle provides a structure for impact reduction such as rigid reinforcement beams and panels. In contrast,

Since the impact reduction means on the vehicle roof side is not provided with a shock absorbing member, it is exposed as a problem that it is not possible to effectively protect the occupant during an overturn accident caused by a vehicle collision.

Conventional loop structure is shown in Figure 4 attached to,

It consists of a roof panel 100 located on the outer surface of the vehicle body and a front roof inner rail 110 located inside the roof panel 100 and welded from the front,

The center pillar of the central side part and both ends of the front and rear sides are installed with the support of the front door panel and the quarter outer panel.

[Problems to Be Solved by the Invention]

However, in the conventional roof structure configured as described above, the roof panel and the front roof inner rail are welded to each other in the front and there is no coupling to the rear, so that the rear part of the front roof inner rail, that is, the coupling, is not absorbed. There is an absurdity that the shaking phenomenon is further increased at the missing part.

In addition, the coupling stiffness of the roof panel and the front roof inner rail constituting the roof is not only degraded, but also adversely affects the overall coupling stiffness with the vehicle body, and does not effectively cope with deformation and breakage of the roof when the vehicle is rolled over.

In particular, the portion where the impact force is directly transferred during the vehicle side collision is bent deformation and the opposite side is easily sheared while shearing.

That is, the center pillar located at the center of the roof side and coupled to the side seal at the bottom and supporting the loop at the upper side directly responds to the impact force in the collision and transfers the residual impact force to the loop, resulting in deformation and breakage.

This is because the center filler has a higher rigidity with the side seal than the loop.

Since the roof does not have a structure capable of performing sufficient shock absorption, the impact force causes severe deformation and breakage of the loop and threatens passenger safety.

[Means to solve the problem]

The present invention is devised to solve the problems of the prior art as described above,

The purpose of the present invention is to improve the safety of passengers by providing a reinforcement panel designed with less deformation because the bending rigidity and torsional rigidity greatly affect the performance of the vehicle,

In addition, it is to provide a roof reinforcement structure of the vehicle that can effectively absorb the vibration and noise generated in the vehicle body to improve the ride comfort.

The present invention in order to realize the object as described above,

It consists of a roof panel located on the outside and forming an exterior portion of the vehicle body and a front roof inner rail located inside the roof panel.

The roof panel and the front roof inner rail are welded together with the reinforcement panel in the front,

A rear reinforcement panel and a front roof inner rail are welded to the rear, and provide a roof reinforcement structure of a vehicle to which a shock absorbing means having elastic force is provided between the assembly and the roof panel.

[Action]

In the vehicle roof reinforcement structure according to the present invention as described above,

The roof structure including the reinforcement panel and the cushioning means retains sufficient rigidity against the external collision force of the vehicle, and can effectively absorb and reduce the problem of ride comfort due to the electric and noise generated in the vehicle body.

EXAMPLE

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

1 is an external perspective view of a vehicle to which a roof reinforcement structure of the present invention can be applied, and FIG. 2 is a cross-sectional view showing a line A-A of FIG.

The roof panel 10, which is positioned outside and forms an exterior portion of the vehicle body, and the front loop inner rail 20 positioned inside the roof panel 10, has a roof 5.

A reinforcement panel 30 welded to the front coupling portion of the roof panel 10 and the front roof inner rail 20 and welded to the rear of the front roof inner rail 20;

It consists of a buffer means 40 is installed in the space between the rear coupling portion of the front loop inner rail 20 and the rear of the roof panel 10.

The buffer means is fixed to the inside of the roof panel 10 and bent to form a support panel 44 having a vacancy,

A fixing panel 43 installed on an inner surface of the vacancy and front roof inner panel 20 provided in the support panel 43;

A shaft 45 installed perpendicularly to the perforated rear coupling portion of the support panel 43 and the front loop inner rail 20;

Rubber 42 is installed on both sides of the shaft 45 and installed on the inner surface of the support panel 44 and the outer surface of the reinforcement panel 30,

It consists of a shock absorbing member 41 provided between the rubber (42).

The roof reinforcement structure of the inventive vehicle made in this way,

In the event of an external collision or when the car is overturned due to impact

Since the reinforcement panel 30 is installed in the loop 1, it retains sufficient rigidity against external impact force.

The impact force of the roof panel 10 primarily absorbs a certain amount of impact, and the reinforcement panel 30 and the front roof inner rail 20 absorb the residual impact force.

The shock absorbing means 40 is effectively absorbed and reduced against vibration generated according to road conditions or driving conditions, or natural vibration generated from the vehicle body.

A vibration phenomenon occurs in the vehicle body panel due to vibration or noise, and the six rear coupling portions of the front loop inner rail 20 and the reinforcement panel 30 are moved up and down about the axis 45 on which the elastic member 41 is laid. Is moved to absorb vibrations or vibrations of the vehicle body due to the elastic member 41,

The rubber 42, which is a shock absorbing member mounted on the shaft 45, may absorb vibrations secondary to solve the problem due to weak rigidity of the loop 1.

3 is a cross-sectional view showing another example of the buffer means applied to the present invention,

Roof panel 10 forming the exterior portion of the vehicle body,

A front loop inner rail 20 fixed to one side of the roof panel 10,

A reinforcement panel 30 welded to the rear of the front loop inner rail 20;

Consists of the buffer means 40 is mounted between the front loop inner rail 20 rear coupling portion and the rear of the roof panel 10,

The buffer means 40 is composed of a pad 50 formed of a buffer member between the rear portion of the roof panel 10 and the rear coupling portion of the front loop inner rail 20.

Since the pad 50 has an elastic repulsive force, the pad 50 can absorb shock force or vibration by itself, thereby obtaining the same effect as the first embodiment.

[effect]

As described above, the roof reinforcement structure of the vehicle according to the present invention is

Since the shock absorber and the reinforcement panel are provided, they have high stress and elastic force, so that the deformation energy due to the external collision force can be accumulated sufficiently, so that the shock can be effectively absorbed and dispersed,

As the overall rigidity and coupling force of the roof are increased, the coupling rigidity with the center pillar located at the center of the side can be increased, which greatly improves the passenger's safety against side impact force.

It is a very useful design that can provide a comfortable ride for passengers by providing a cushioning means, which is a structure that can effectively absorb vibrations with a great variation according to natural vibrations or road conditions and driving conditions generated in the vehicle body. to be.

Claims (3)

Roof panel 10, A front loop inner rail 20 fixed to one side of the roof panel 10, A reinforcement panel 30 welded to the rear of the front loop inner rail 20; The front loop inner rail (20) of the roof reinforcement structure comprising a cushioning means (40) mounted between the rear coupling portion and the roof panel (10) rear. The support panel (44) according to claim 1, wherein the buffer means is fixed inside the roof panel (10) and is bent to form an empty space. A fixing panel 43 installed on an inner surface of the vacancy and front roof inner panel 20 provided in the support panel 43; A shaft 45 installed perpendicularly to the perforated rear coupling portion of the support panel 43 and the front loop inner rail 20; A rubber 42 installed at both ends of the shaft 45 and installed on an inner surface of the support panel 44 and an outer surface of the reinforcement panel 30; Roof reinforcement structure of a vehicle comprising a buffer member 41 is installed between the rubber (42). According to claim 1, wherein the buffer means is a porous cushioning member which is installed between the roof panel 10 and the front roof inner rail 20 to the upper side of the reinforcement panel welded to the rear of the front roof inner rail and the bottom of the roof panel. Roof, reinforcement structure of the vehicle, including the pad 50 formed by the.