KR20190056810A - Body reinforcement apparatus of vehicle - Google Patents

Abstract

The present invention relates to a body reinforcement apparatus of a vehicle, which comprises: a transverse bar disposed across body frames at both sides; and a pair of connection bars vertically disposed at both ends of the transverse bar along an upper and lower direction and connecting both ends of the transverse bar and the body frames at both sides. As the body reinforcement apparatus of a vehicle is applied between body frames of a vehicle applied with a frame body, when the vehicle is driven, in particular, an excessive twisting load caused by high speed driving and a sharp curve is dispersed to both sides of the vehicle body through the vehicle body frames at both sides to be attenuated.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle body reinforcement apparatus for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle body reinforcement apparatus for a vehicle, and more particularly, to a vehicle body reinforcement apparatus for a vehicle that reinforces a vehicle body to prevent rolling and pitching occurring during running of a vehicle to which a frame body is applied.

Generally, a car body is largely divided into a monocoque body and a frame body.

The monocoque body is a box-shaped combination of a body panel and a frame appropriately mutually, and is mainly adopted in a sedan-type passenger car.

The frame body has a structure in which the chassis frame forms the main skeleton of the floor panel and an upper tower is seated thereon. The frame body is mainly used in an SUV (Sports Utility Vehicle) vehicle, a commercial vehicle or a large-sized vehicle.

For example, FIG. 1 is a structural view of a vehicle body to which a frame body according to the related art is applied, and FIG. 2 is a longitudinal sectional view of an A portion where the chassis frame and the body frame shown in FIG. 1 are combined.

1 and 2, the vehicle body of the vehicle to which the frame body is applied includes a chassis frame 10 disposed so as to extend opposite to the right and left front ends along the longitudinal direction of the vehicle body, A vehicle body frame 14 mounted at a plurality of places on the upper portion of the chassis frame 10 and a follower panel 24 mounted on the upper side of the vehicle body frame 14, .

As shown in Fig. 2, the chassis frame 10 and the vehicle body frame 14 are coupled with each other by a screw-fastened body frame 14 disposed on the upper portion of the chassis frame 10, do.

An upper bush 16 and a lower bush 18 are respectively provided on upper and lower sides of the through hole 11 formed at the center of the chassis frame 10 and through holes 15 The bolts 20 are inserted. The bolts 20 are sequentially fastened to the nuts 22 at the bottom of the lower bush 18 through the upper bush 16, the chassis frame 10 and the lower bush 18, respectively.

The following patent documents 1 and 2 disclose a frame structure technique of a frame body vehicle.

Korean Patent Registration No. 10-0552720 (published on February 20, 2006) Korean Patent Registration No. 10-0412845 (issued on December 31, 2003)

In the above-described conventional frame body vehicle, when an excessive torsional load is generated at the time of high-speed running and rapid curve driving, the torsional load is transmitted to the upper and lower bushes to be attenuated.

Accordingly, as the wear speed of the upper and lower bushes increases sharply in the frame body vehicle according to the related art, the life of the upper and lower bushes is shortened and excessive room noise is generated and the noise vibration harshness (NVH) .

Further, in the frame body vehicle according to the related art, there has been a problem in that the upper and lower bushes wear and cure over time, and the torsional load can not be adequately attenuated over time, and the rolling of the upper tower mounted on the upper part of the chassis frame becomes worse.

An object of the present invention is to provide a vehicle body reinforcing steel ladle of a vehicle that connects both chassis frames to each other in a frame body vehicle to prevent rolling of the vehicle body due to a torsional load generated when the vehicle is traveling .

Another object of the present invention is to provide a vehicle body reinforcing apparatus for a vehicle which can reinforce the vehicle body, prevent abrasion of the upper and lower bushings caused by a torsional load generated when the vehicle is traveling, and reduce noise.

In order to achieve the above object, a vehicle body reinforcing apparatus for a vehicle according to the present invention comprises a pair of body frames, So that the torsional load generated at the time of traveling of the vehicle is dispersed to both sides of the vehicle body and attenuated.

The present invention includes a pair of connecting bars which are disposed vertically along the vertical direction at both ends of the horizontal bar and which connect the both ends of the horizontal bar and the body frames on both sides, .

The transverse bar and the connecting bar are installed on the vehicle body frame by bolts passing through both ends of the transverse bar.

The present invention may further include a reinforcing bar having one end disposed along the longitudinal direction of the vehicle body at a central portion of the transverse bar and a mounting block disposed between the other end of the reinforcing bar and the cross member, Is installed across the vehicle body at a position where the vehicle body is avoided.

The present invention further includes a pair of auxiliary bars installed on both sides of the horizontal bar and connected to the pair of connecting bars, respectively, wherein the horizontal bar is installed across the vehicle body at a position avoiding obstacles provided on the vehicle body .

The present invention relates to a straddle-type vehicle comprising a reinforcing bar, one end of which is provided along a longitudinal direction of a vehicle body at a central portion of the transverse bar, a mounting block provided between the other end of the reinforcing bar and cross members, And a pair of auxiliary bars each of which is connected to the connecting bar of the vehicle body, and the horizontal bar is installed across the vehicle body at a position avoiding obstacles provided on the vehicle body.

And a stepped horizontal surface is formed at both ends of the horizontal bar and at the other end of the reinforcing bar such that the connecting bar and the central portion of the horizontal bar are seated.

The horizontal bar, the connecting bar, the reinforcing bar and the auxiliary bar are manufactured by processing an extrusion bar extruded from aluminum or an aluminum alloy material, respectively.

As described above, according to the vehicle body reinforcement device of the present invention, the vehicle body reinforcement device is applied between the vehicle body frames of a vehicle to which the frame body is applied, so that an excessive torsional load occurring at the time of vehicle traveling, It is possible to attenuate both sides of the vehicle body through the body frame of the vehicle.

According to the present invention, when the torsional load is concentrated as in the rear end portion of the vehicle body and it is difficult to install the horizontal bar between the vehicle frames at both sides due to the obstacle, a reinforcing bar is provided in the central portion of the horizontal bar toward the front of the vehicle body, The torsion load to be connected to the connecting bar can be dispersed to both sides of the vehicle body through the vehicle frames on both sides and attenuated.

Thus, according to the present invention, it is possible to prevent the rolling of the vehicle body due to the torsional load, to prevent the bushing from being abraded, and to reduce the noise.

1 is a structural view of a vehicle body of a vehicle to which a frame body according to the related art is applied,
Fig. 2 is a longitudinal sectional view of a portion A where the chassis frame and the body frame shown in Fig. 1 are engaged,
3 is a structural view of a vehicle body to which a vehicle body reinforcing apparatus for a vehicle according to a preferred embodiment of the present invention is applied;
Fig. 4 is an enlarged view of the vehicle body reinforcing apparatus installed at the front end portion of the vehicle body shown in Fig. 3,
Fig. 5 is an exploded perspective view of an enlarged portion of one side of the vehicle body reinforcing apparatus shown in Fig. 4,
Fig. 6 is an enlarged view of the vehicle body reinforcing apparatus installed at the rear end of the vehicle body shown in Fig. 3,
Fig. 7 is an exploded perspective view of an enlarged portion of one side of the vehicle body reinforcing apparatus shown in Fig. 6,
8 is a photograph of a vehicle body reinforcement device provided at a rear end of a vehicle body of an actual vehicle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A vehicle body reinforcing apparatus for a vehicle according to a preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

In the present embodiment, the structure of the vehicle body reinforcement device will be described in detail by using the structure of the vehicle body applied to the vehicle to which the frame body shown in Figs. 1 and 2 is applied.

It should be noted that the present invention can be applied to a vehicle body in which the shape of the vehicle body is variously changed according to characteristics of the vehicle to which the frame body is applied.

3 is a structural view of a vehicle body to which a vehicle body reinforcing apparatus according to a preferred embodiment of the present invention is applied.

Hereinafter, terms indicating directions such as 'left', 'right', 'forward', 'rearward', 'upward' and 'downward' are defined as indicating respective directions based on the states shown in the respective drawings do.

As shown in FIG. 3, a vehicle body to which a vehicle body reinforcing apparatus according to a preferred embodiment of the present invention is applied includes a pair of chassis frames 10 extending in parallel to each other along the longitudinal direction of the vehicle body, A cross member 12 disposed across the vehicle body so as to connect between the frames 10, a plurality of pairs of the vehicle body frames 14 mounted on both sides of the pair of chassis frames 10, And a vehicle body reinforcing device 30 mounted across the vehicle body so as to connect the pair of the vehicle body frames 14 or more.

The vehicle body may further include a follower panel 24 provided on the upper side of the vehicle body frame 14 and an upper tower (not shown) mounted on the upper portion of the follower panel 24.

The vehicle body reinforcing apparatus 30 according to the preferred embodiment of the present invention connects a pair of body frames 14 corresponding to each other to connect a torsional load generated at the time of traveling of the vehicle, 14) to attenuate.

At least one such vehicle body reinforcing apparatus 30 may be provided along the rear end portion of the front end portion of the vehicle body.

3, a total of two body reinforcement devices 30 and 30 'are shown, one at the front end and one at the rear end of the vehicle body. However, the present invention is not necessarily limited thereto, Or more of the vehicle body reinforcement device.

First, the configuration of a vehicle reinforcement device 30 provided at the front end portion of the vehicle body will be described with reference to Figs. 3 to 5. Fig.

Fig. 4 is an enlarged view of a vehicle body reinforcing apparatus installed at a front end portion of the vehicle body shown in Fig. 3, and Fig. 5 is an exploded perspective view of an enlarged one side portion of the vehicle body reinforcing apparatus shown in Fig.

The vehicle body reinforcing apparatus 30 is provided with a horizontal bar 40 disposed across the body frames 14 on both sides and both ends of the horizontal bar 40, And a pair of connecting bars 50 connecting the vehicle frames 14 on both sides.

The horizontal bar 40 and the connecting bar 50 are installed in the vehicle body frame 14 by means of bolts 32 inserted through both ends of the horizontal bar 40.

A bushing 31 corresponding to the lower bushing 18 shown in FIG. 2 is provided at an upper portion of the connection bar 50 and is shown at the upper portion of the bushing 31. However, The upper bush 16, the floor panel 24 and the upper tower are disposed.

Between the connecting bar 50 and the vehicle body frame 14, a bush 31 for attenuating a torsional load generated when the vehicle travels is provided, and a nut 33 is fastened to the upper end of the bolt 32.

A pair of seating surfaces 41 may be formed on both ends of the horizontal bar 40 such that the connecting bars are respectively seated.

Here, the horizontal bar 40 can be manufactured by molding an extruded bar made of an aluminum material.

In other words, the horizontal bar 40 is manufactured by processing an extruded bar formed by extruding aluminum or aluminum alloy material, unlike the conventional method of manufacturing an iron material, aluminum or an alloy thereof by forging or casting.

As described above, according to the present invention, by manufacturing the horizontal bar 40 using the extrusion bar, the density of the horizontal bar is improved to prevent the generation of bubbles inside, thereby preventing the horizontal bar from being deformed due to heat .

Accordingly, the present invention eliminates the need to manufacture a metal mold for manufacturing a horizontal bar, thereby reducing manufacturing costs. In the case of machining using a dedicated machine tool such as a machining center, In a large amount.

In addition, according to the present invention, since the extruded bar is used, the processed surface is smooth due to high density, and the paint can be easily performed on the surface of the vehicle body reinforcing apparatus by using various pigments.

Each seating surface 41 may be formed with a top surface and a stepped horizontal surface so that the bottom surface of the connecting bar 50 can be stably stowed.

A through hole 42 through which the bolt 32 is inserted may be formed on each seating surface 41.

The connecting bar 50 is provided with an extruding bar having a substantially rectangular or hexagonal cross section in the same manner as the horizontal bar 40. An installation hole 51 having a bolt installed along the vertical direction is formed at the center of the connecting bar 50, .

Of course, the cross section of the transverse bar 40 and the connecting bar 50 may be circular.

As described above, according to the present invention, a vehicle body reinforcing apparatus is applied between both vehicle body frames of a vehicle to which a frame body is applied to disperse an excessive torsional load, which occurs at the time of vehicle traveling, particularly at high- Can be attenuated.

Accordingly, the present invention can prevent rolling of the vehicle body due to a torsional load, prevent wear of the bush, and reduce noise.

Next, the structure of the vehicle body reinforcement device applied to the rear end portion of the vehicle body will be described in detail with reference to Figs. 6 and 7. Fig.

Fig. 6 is an enlarged view of a vehicle body reinforcing apparatus installed at a rear end portion of the vehicle body shown in Fig. 3, and Fig. 7 is an exploded perspective view enlarging one side portion of the vehicle body reinforcing apparatus shown in Fig.

As shown in Figs. 6 and 7, the vehicle body reinforcement device 30 'applied to the rear end of the vehicle body includes a structure of the vehicle body reinforcement device 30 applied to the front end portion of the vehicle body described with reference to Figs. A reinforcing bar 60 provided along the longitudinal direction of the vehicle body at a central portion of the bar 40 and a mounting block 70 installed between the front end of the reinforcing bar 60 and the cross member 12, As shown in FIG.

The vehicle body reinforcing apparatus 30 'may further include a pair of auxiliary bars 80 installed on both sides of the horizontal bar 40 and connected to the connecting bars 50.

That is, at the rear end portion of the vehicle body, a torsional load is generated at the time of traveling of the vehicle larger than the front end portion of the vehicle body, and an obstacle which is interfered when the horizontal bar 40 is installed like a fuel tank is installed. It is possible to provide a horizontal bar 40 and to provide a reinforcing bar 60 between the horizontal bar 40 and the cross member 12 to improve the reinforcing performance.

The reinforcing bar 60 may be provided with an extruding bar having a substantially rectangular or hexagonal cross section in the same manner as the transverse bar 40 and the connecting bar 50.

A fastening groove 61 is formed at the distal end of the reinforcing bar 60 so as to penetrate the mounting block 70 and provided with a first fastening bolt 64. The rear end of the reinforcing bar 60 is provided with a cross- A coupling surface 62 is formed horizontally to be coupled with the central portion and a coupling hole 63 to which the second coupling bolt 65 is coupled may be formed on the coupling surface 62 along the vertical direction.

The first fastening bolt 64 is fastened to the fastening groove 61 of the reinforcing portion 60 through the mounting block 70 and a thread may be formed on the inner circumferential surface of the fastening groove 61.

The second fastening bolt 65 penetrates through the fastening hole 63 of the reinforcing bar 60 so as to penetrate through the reinforcing hole 43 formed along the vertical direction at the central portion of the cross bar 40, The fastening nut 66 can be fastened to the upper end of the fastening member 62.

The installation block 70 is formed in a substantially rectangular parallelepiped shape having a length larger than the vertical and horizontal lengths. A plurality of fixing holes for fixing the cross member 12 to the installation block 70 by the fixing bolts are formed in the longitudinal direction of the vehicle body As shown in FIG.

The auxiliary bar 80 is provided with an extrusion bar made of the same material as that of the horizontal bar 40 and the connecting bar 50 and may be formed in a rectangular parallelepiped shape having a longer length than the width and height.

First and second fastening holes 81 and 82 are formed at both ends of the auxiliary bar 80 to fasten the bolts 32 and the fastening bolts 83 to each other.

For example, FIG. 8 is a photograph of a vehicle body reinforcing apparatus provided at the rear end of a vehicle body of an actual vehicle.

8, in the present invention, a horizontal bar is provided at a position avoiding an obstacle provided in a vehicle body, a horizontal bar and a connecting bar are connected using an auxiliary bar, and a reinforcing bar is installed at a central portion of the horizontal bar to reinforce the supporting force have.

 As described above, according to the present invention, when a torsional load is concentrated as in the rear end portion of a vehicle body and it is difficult to install a horizontal bar between both vehicle frames due to an obstacle, a reinforcing bar is provided toward the front of the vehicle body at a central portion of the horizontal bar, It is possible to connect auxiliary bars to the connecting bars.

Accordingly, the present invention can reduce the rolling of the vehicle body, prevent the bushing from being worn, and reduce the noise by dispersing and reducing the torsional load generated at the time of vehicle traveling to both sides of the vehicle body through the vehicle body frames on both sides.

Although the invention made by the present inventors has been described concretely with reference to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

In other words, in the above-described embodiment, the auxiliary bar is installed toward the front of the vehicle body at both ends of the horizontal bar. However, the present invention is not limited thereto. For example, the auxiliary bar may be installed on both sides of the lateral bar, It may be changed.

Of course, the present invention may also be provided such that the bar and auxiliary bar are at an acute or obtuse angle with respect to each other.

The present invention can be modified not only to connect the vehicle body frame to the floor panel and the upper tower, but also to a portion connecting the chassis frame to the body frame and the floor panel.

Here, upper and lower bushes may be respectively installed on the upper and lower portions of the sharp frame.

Further, the present invention may be applied not only to a vehicle to which a frame body is applied but also to a vehicle body of a vehicle to which a monocoque body is applied, so that a torsional load generated when the vehicle is traveling is dispersed to both sides of the vehicle body so as to be attenuated.

The present invention is applied to a vehicle body reinforcing apparatus technique of a vehicle that prevents rolling of a vehicle body by dispersing and reducing a torsional load generated in a vehicle running through chassis frames on both sides of the chassis frame.

10: chassis frame 12: cross member
14: body frame 16, 18: upper and lower bushes
20: bolt 22: nut
24: Floor panel 30, 30 ': Body reinforcement device
31: Bush 32: Bolt
33: nut 40: horizontal bar
41: seat surface 42: through hole
43: reinforcement ball 50: connection bar
51: Installation hole 60: Reinforcing bar
61: engaging groove 62: engaging surface
63: fastening holes 64, 65: first and second fastening bolts
66: fastening nut 70: mounting block
80: auxiliary bar 81, 82: first and second fixing holes
83: Fixing bolt

Claims (8)

A vehicle body reinforcing apparatus for a frame body vehicle provided with a plurality of pairs of body frames provided on both sides of a pair of chassis frames,
And a pair of body frames corresponding to each other are connected to disperse the torsional load generated at the time of traveling of the vehicle to both sides of the vehicle body to attenuate the vehicle body. The method according to claim 1,
A transverse bar disposed across the body frames of both sides and
And a pair of connecting bars disposed perpendicularly to both ends of the transverse bar so as to connect both ends of the transverse bar and the body frames on both sides of the transverse bar, respectively. 3. The method of claim 2,
Wherein the transverse bar and the connecting bar are installed on the vehicle body frame by bolts which are fastened through both ends of the transverse bar. 3. The method of claim 2,
A reinforcing bar having one end provided along a longitudinal direction of the vehicle body at a central portion of the lateral bar and
And a mounting block provided between the other end of the reinforcing bar and the cross member,
Wherein the transverse bar is installed across the vehicle body at a position avoiding obstacles provided on the vehicle body. 3. The method of claim 2,
Further comprising a pair of auxiliary bars installed on both sides of the horizontal bar and connected to the pair of connection bars, respectively,
Wherein the transverse bar is installed across the vehicle body at a position avoiding obstacles provided on the vehicle body. 3. The method of claim 2,
A reinforcing bar having one end provided along the longitudinal direction of the vehicle body at a central portion of the lateral bar,
An installation block provided between the other end of the reinforcing bar and the cross member,
Further comprising a pair of auxiliary bars installed on both sides of the horizontal bar and connected to the pair of connection bars, respectively,
Wherein the transverse bar is installed across the vehicle body at a position avoiding obstacles provided on the vehicle body. The method according to claim 6,
Wherein a horizontal stepped surface is formed on both ends of the horizontal bar and the other end of the reinforcing bar such that the connecting bar and the center portion of the horizontal bar are seated. The method according to claim 6,
Wherein the horizontal bar, the connecting bar, the reinforcing bar, and the auxiliary bar are manufactured by machining an extrusion bar extruded from aluminum or an aluminum alloy material, respectively.

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