KR102062178B1 - Length adjustable CFRP strut bar for vehicles - Google Patents

Abstract

The present invention relates to a length-adjustable vehicle carbon fiber reinforced plastic strut bar, in particular, by adding a refractive link to the vehicle strut bar can be adjusted in length can be commonly used in vehicles with different distances between the mount of the wheel, carbon fiber reinforced The present invention relates to a device for providing a strut bar having a light weight and excellent torsional strength by being made of plastic, the bar-shaped lug block 100; An inner clevis 210 and an outer clevis 220 which are rotatably connected to both ends of the lug block 100 and having assembly protrusions 211 and 221 protruding along a longitudinal direction thereof; A hollow body made of carbon fiber reinforced plastic, the main bar 300 having an assembly protrusion 211 of the inner clevis 210 inserted into and fixed at both ends thereof; Including a bracket 400 is fixed to the mount for fixing the wheel to the vehicle body, the groove 400 is formed in which the assembling protrusion 221 of the outer clevis 220 is inserted and fixed in the longitudinal direction, compatibility with the strut bar and It is to increase product competitiveness, reduce weight, and achieve excellent driving safety.

Description

Length adjustable CFRP strut bar for vehicles}

The present invention relates to a length-adjustable vehicle carbon fiber reinforced plastic strut bar, in particular, by adding a refractive link to the vehicle strut bar can be adjusted in length can be commonly used in vehicles with different distances between the mount of the wheel, carbon fiber reinforced plastic The present invention is to provide a strut bar having a light weight and excellent torsional strength by increasing the weight, and improving the compatibility and product competitiveness of the strut bar, and reducing weight and providing excellent driving safety.

In general, the strut bar for a vehicle is one of the auxiliary devices to secure the straightness of the vehicle while driving, and to improve the driving stability by minimizing the left and right shake, tilt, distortion, etc. generated during the rotation of the vehicle.

Such a vehicle strut bar is usually mounted to connect the mounts of the wheels (the top end of the shock absorber mounting position) located on both sides of the inside of the engine room.

1 is a perspective view showing a conventional vehicle integrated strut bar, Figure 2 is a view showing a conventional vehicle detachable strut bar, Figure 2 (a) is a perspective view, Figure 2 (b) is an exploded perspective view.

In the conventional vehicle strut bar, as shown in FIGS. 1 and 2, brackets 20 are provided at both ends of the main bar 10, and the two brackets 20 are mounted on wheels spaced apart from each other. It is fixed to each site.

According to such a configuration, the conventional vehicle strut bar increases the driving stability by reducing the left and right shake, tilting, torsion, etc. of the vehicle body generated when the vehicle rotates.

However, the above-described conventional vehicle strut bar is made of a metal material to have a high rigidity basically, its own weight is heavy, in particular, the integral strut bar illustrated in FIG. 1 has a distance between the brackets 20 of the vehicle. Since the vehicle body is made to fit the distance between the mounts of the wheels, it is impossible to mount the vehicle body with different distances between the mounts of the wheels.

In addition, since the detachable strut bar illustrated in FIG. 2 uses fastening means 30 such as bolts 31 and nuts 32 to connect the main bar 10 and the bracket 20 to each other, There is a problem in the prior art that assembling performance is reduced with the increase in weight by the fastening means (30).

The present invention is to solve the above problems, by providing a strut bar that can be adjusted in length can be commonly used in vehicles with different distances between the mount of the wheel increases the compatibility and product competitiveness for the strut bar, especially carbon fiber It is made of reinforced plastic to provide a strut bar with light weight and excellent torsional strength. Therefore, the present invention aims to provide a carbon fiber reinforced plastic strut bar that can be adjusted in length to reduce weight and provide excellent driving safety.

The carbon fiber reinforced plastic strut bar for adjustable length according to the present invention includes a bar block lug block; An inner clevis and an outer clevis rotatably connected to both ends of the lug block, the assembly protrusion protruding along a length direction; A hollow body made of carbon fiber reinforced plastic, the main bar being inserted into and fixed with the assembly protrusion of the inner clevis at both ends; It is achieved by including a bracket which is fixed to a mount for fixing the wheel to the vehicle body, the groove having a groove in which the assembly protrusion of the outer clevis is inserted and fixed in the longitudinal direction.

At this time, the assembly protrusion of the inner clevis and the outer clevis is formed into a polygonal cross-section, the inner surface shape of the main bar and the bracket groove is a polygon shape corresponding to the assembly protrusion of the inner clevis and the outer clevis. It is good to be molded into.

In addition, the lug block and the connection portion between the inner clevis and the outer clevis is preferably covered with a flexible cover which is a hollow body having elastic flexibility.

In addition, the main bar and the inner clevis may be mutually bonded to each other without a separate fastening means, and the bracket and the outer clevis may be mutually connected to each other by a bonding or fusion without a separate fastening means.

In particular, the lug block and the inner clevis and the outer clevis is rotatably connected to each other by a fastening means; The fastening means includes a pair of washers; A insertion pin inserted through the lug block and the pair of washers with the inner clevis or the outer clevis interposed therebetween; It may be desirable to include a split pin that is radially penetrated and inserted into the distal end of the insertion pin.

As described above, the present invention provides a strut bar that is adjustable in length, so that the distance between the mounts of the wheels can be commonly used in vehicles to increase the compatibility and product competitiveness of the strut bar, and in particular, it is made of carbon fiber reinforced plastic and lightweight In addition, it is an invention that can provide a strut bar with excellent torsional strength and can achieve excellent driving safety with weight reduction.

1 is a perspective view showing a conventional vehicle integrated strut bar;
2 is a view showing a conventional split strut bar for a vehicle;
Figure 3 is a perspective view showing a carbon fiber reinforced plastic strut bar for adjustable length of the present invention,
Figure 4 is an exploded perspective view showing the main portion of a carbon fiber reinforced plastic strut bar for adjustable length vehicle of the present invention,
5 is a front view illustrating the length adjustment for the adjustable carbon vehicle reinforced plastic strut bar of the present invention,
Figure 6 is a perspective view showing a state in which the flexible cover is applied to the carbon fiber reinforced plastic strut bar for adjustable length vehicle of the present invention.

Figure 3 is a perspective view showing a carbon fiber reinforced plastic strut bar for adjustable length of the present invention, Figure 4 is an exploded perspective view showing the main portion of the carbon fiber reinforced plastic strut bar for adjustable length of the present invention.

And, Figure 5 is a front view illustrating the length adjustment for the carbon fiber reinforced plastic strut bar for adjustable length vehicle of the present invention, Figure 6 shows a state in which the flexible cover is applied to the carbon fiber reinforced plastic strut bar for adjustable length of the present invention. It is a perspective view.

Specific structural or functional descriptions presented in the embodiments of the present invention are only illustrated for the purpose of describing the embodiments according to the inventive concept, and the embodiments according to the inventive concept may be implemented in various forms. In addition, it should not be construed as limited to the embodiments described herein, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Meanwhile, terms such as first and / or second in the present invention may be used to describe various components, but the components are not limited to the terms. The above terms are for the purpose of distinguishing one component from other components only, for example, within the scope not departing from the scope of the right according to the concept of the present invention, the first component may be called a second component, Similarly, the second component may also be referred to as the first component.

When a component is referred to as being "connected" or "connected" to another component, it is to be understood that the component may be directly connected or connected to that other component, but other components may be present in between. something to do. On the other hand, when a component is said to be "directly connected" or "directly contacted" to another component, it should be understood that there is no other component in between. Other expressions for describing relationships between components, such as "between" and "immediately between" or "adjacent to" and "directly adjacent to," should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. The terms "comprises" or "having" herein are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof that is practiced, and that one or more other features or numbers, It is to be understood that it does not exclude in advance the possibility of the presence or addition of steps, actions, components, parts or combinations thereof.

Carbon fiber-reinforced plastic strut bar for adjustable length of the present invention provides a strut bar with adjustable length can be commonly used in vehicles with different distances between the mounts of the wheels to increase the compatibility and product competitiveness for the strut bar, in particular It is made of carbon fiber reinforced plastic and can provide strut bar with light weight and excellent torsional strength, which can reduce weight and achieve excellent driving safety.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Carbon fiber reinforced plastic strut bar for adjustable length vehicle according to the present invention, as shown in Figure 3 and 4, the bar-shaped lug block 100; An inner clevis 210 and an outer clevis 220 which are rotatably connected to both ends of the lug block 100 and having assembly protrusions 211 and 221 protruding along a longitudinal direction thereof; A hollow body made of carbon fiber reinforced plastic, the main bar 300 having an assembly protrusion 211 of the inner clevis 210 inserted into and fixed at both ends thereof; It is preferable to include a bracket 400 which is fixed to a mount for fixing the wheel to the vehicle body, the groove 410 of which the assembly protrusion 221 of the outer clevis 220 is inserted and fixed in the longitudinal direction.

That is, the present invention includes a lug block 100, an inner clevis 210 and an outer clevis 220, a main bar 300, and a bracket 400, and in particular, both ends of the lug block 100. The inner clevis 210 and the outer clevis 220 are rotatably connected to form a deflection link, so that the overall length of the vehicle strut bar according to the present invention can be variously adjusted.

For reference, in the following description, the center side of the length-adjustable vehicular carbon fiber reinforced plastic strut bar of the present invention will be referred to as the inner side, and both sides will be referred to as the outer side.

First, the lug block 100 is a bar (bar) having a predetermined length, that is, a configuration consisting of a solid body of a bar shape.

The inner clevis 210 and the outer clevis 220 are rotatably connected to both ends of the lug block 100 as shown in FIG. 4. In this case, the lug block 100 and the inner clevis 210 are rotated. ) And a separate fastening means 600 may be used to connect the outer clevis 220.

That is, as illustrated in FIG. 4, the lug block 100, the inner clevis 210, and the outer clevis 220 may be connected to each other by a fastening means 600. The fastening means 600, a pair of washers (610) and; An insertion pin (620) inserted through the pair of washers (610) between the lug block (100) and the inner clevis (210) or the outer clevis (220); It may be preferable to include a split pin 630 inserted into the end of the insertion pin 620 through the radial direction.

To this end, coupling holes 101 are formed at both ends of the lug block 100, and the coupling holes also correspond to the inner clevis 210 and the outer clevis 220 corresponding to the coupling hole 101. Holes aligned with 101 are formed.

Accordingly, as the insertion pin 620 is assembled through the coupling hole 101, the inner clevis 210 and the outer clevis 220 are rotatably connected to both sides of the lug block 100. The split pin 630 is coupled to the end of the insertion pin 620 to prevent the insertion pin 620 from being separated.

In this case, the insertion pin 620 passes through the pair of washers 610 together, and the lug block 100 and the inner clevis 210 or the outer side between the pair of washers 610. Clevis 220 is to be located.

Accordingly, even if the inner clevis 210 and the outer clevis 220 of both sides of the lug block 100 rotate repeatedly, the occurrence of friction or wear is minimized.

In addition, the inner end of the inner clevis 210, that is, the opposite end to which the lug block 100 is connected, the assembling protrusion 211 is formed to extend a predetermined length is connected to the main bar 300 to be described later.

At this time, the outer circumferential surface of the portion other than the assembling protrusion 211 in the inner clevis 210 is preferably formed in the same cross-sectional shape as the outer circumferential surface of the main bar 300, accordingly, It will be preferable that the stepped portion is not formed in the joint of the inner clevis 210 and the main bar 300.

In addition, the outer protrusion of the outer clevis 220, that is, the opposite end to which the lug block 100 is connected, the assembly protrusion 221 is formed to extend a predetermined length is connected to the bracket 400 to be described later.

At this time, the outer circumferential surface of the portion other than the assembly protrusion 221 of the outer clevis 220 is formed in a smaller cross-sectional area than the outer circumferential surface formed with the groove 410 in the bracket 400.

Here, the main bar 300 is connected to the inner clevis 210 is a hollow body made of carbon fiber reinforced plastic, that is, CFRP (Carbon Fiber Reinforced Plastic) material, the both ends of the main bar 300 The assembly protrusion 211 of the inner clevis 210 is inserted and fixed.

In particular, the main bar 300 by producing a carbon fiber-reinforced plastic it would be good to be able to retain the high rigidity and light weight.

Here, it is preferable that the assembly protrusion 211 of the inner clevis 210 is inserted into and fixed inside the main bar 300 formed of a hollow body.

In addition, the bracket 400 connected to the outer clevis 220 is configured to be integrally assembled with the shock absorber on the mount portion of the wheel, and for this purpose, a plurality of fastening holes 401 are formed in the bracket 400. In the figure, it is illustrated that three fastening holes 401 are formed in one bracket 400.

The assembly protrusion 221 of the outer clevis 220 is inserted into and fixed to the recess 410 formed inside the bracket 400.

Here, the depth of the groove 410 formed in the bracket 400 is preferably formed to be the same as the length of the assembling protrusion 221 of the outer clevis (220).

According to this configuration, the length-adjustable vehicle carbon fiber reinforced plastic strut bar according to the present invention, the inner clevis 210, the lug block 100 on both sides toward the outside based on the main bar 300 located in the center , The outer clevis 220, and the bracket 400 is sequentially connected.

As a result, as shown in FIG. 5A, when the lug block 100 positioned between the main bar 300 and the bracket 400 is positioned substantially horizontally, the mounts of the wheels are mutually positioned. Strut bars can also be fitted to the bodywork with the longest distance W1.

In addition, as shown in (b) of FIG. 5, when the lug block 100 positioned between the main bar 300 and the bracket 400 is positioned with a gentle inclination, the mounts of the wheels are mutually Strut bars can also be fitted to vehicles with a medium distance of W2.

In particular, as shown in (c) of Figure 5, when the lug block 100 located between the main bar 300 and the bracket 400 is placed in a steep inclination, between the mount of the wheel The same strut bar can also be attached to a body whose distance W3 is relatively short.

That is, the carbon fiber reinforced plastic strut bar for adjustable length vehicle according to the present invention can be mounted by moving one strut bar to various vehicle bodies having different distances between wheel mounts, thereby increasing the compatibility and competitiveness of the product. .

Although only the main bar 300 has been described as being made of a carbon fiber reinforced plastic material, in addition to the main bar 300 described above, the inner clevis 210 and the outer clevis 220 as well as the lug block 100 are described. If all are made of carbon fiber reinforced plastic materials, the strut bar itself has a significant advantage of significantly lowering its weight and having high rigidity.

In addition, in the present invention, the assembling protrusions 211 and 221 of the inner clevis 210 and the outer clevis 220 are formed in a polygonal cross section, and the main bar 300 and the bracket 400 grooves. The inner side shape of the 410 may be molded into a polygonal shape corresponding to the assembly protrusions 211 and 221 of the inner clevis 210 and the outer clevis 220.

That is, the inner protrusions 211 and 221 of the inner clevis 210 and the outer clevis 220 and the inner surfaces of the grooves 410 of the main bar 300 and the bracket 400 corresponding thereto, respectively. By forming the shape in a polygon, it is to prevent the slip in the twist direction in the connecting portion of the component when the torsion occurs.

In other words, the inner circumferential surface of the main bar 300 is formed in the same shape as the rectangular cross-sectional shape of the assembly protrusion 211 of the inner clevis 210 described above, and the recess 410 of the bracket 400 is described above. It is formed in the same way as the rectangular cross-sectional shape of the assembling protrusion 221 of the outer clevis 220, which is good in terms of retaining high rigidity against torsion.

As a result, the torsion generated in the vehicle body is evenly transmitted from the bracket 400 on both sides to the main bar 300 through the outer clevis 220, the lug block 100, and the inner clevis 210. This effectively reduces the shaking, tilting and torsion caused by the rotation of the machine.

In addition, in the present invention, the lug block 100, the connection portion between the inner clevis 210 and the outer clevis 220 may be coated with a flexible cover 500 which is a hollow body having elastic flexibility. something to do.

For example, the flexible cover 500 is made of a rubber or silicone material having a somewhat smaller diameter, and by expanding it and mounting it on the connection part, the outer side of the main bar 300 and the lug block 100. It is positioned to elastically wrap and tighten the circumference.

6 illustrates that the flexible cover 500 is provided at the connection portion between the lug block 100 and the inner clevis 210. Accordingly, the flexible cover 500 prevents the connection portion from being exposed to the outside. Basically, it also has the effect of preventing the appearance of falling.

However, rather than preventing foreign substances such as dust from being caught in the connection portion, it is possible to keep the connection portion in an airtight state to prevent rust due to the influence of moisture to have an anti-rust effect.

In addition, in the present invention, the main bar 300 and the inner clevis 210 are mutually coupled by bonding without a separate fastening means, and the bracket 400 and the outer clevis 220 are separate. It is preferable to bond together by gluing or fusion without fastening means.

That is, in the present invention, by fusion or fusion of each component according to the material, it is possible to manufacture by fusion by gluing by using an adhesive or by dissolving the material by laser or ultrasonic waves without a separate fastening means, which contributes to weight reduction. It would be desirable.

Carbon fiber-reinforced plastic strut bar for adjustable length of the present invention configured as described above is provided with a strut bar that is adjustable in length can be commonly used in vehicles with different distances between the mount of the wheel to improve compatibility and product competitiveness for the strut bar It is an invention having an excellent advantage that it is possible to provide a strut bar having a light weight and excellent torsion strength by increasing the weight, and in particular, made of carbon fiber reinforced plastic.

The above embodiment is an example for explaining the technical idea of the present invention in detail, and the scope of the present invention is not limited to the above drawings and embodiments.

100: lug block 101: coupling hole
210: inner clevis 211, 221: assembly protrusion
220: outer clevis 300: main bar
400: bracket 401: fastening hole
410: groove 500: flexible cover
600: fastening means 610: washer
620: insertion pin 630: split pin

Claims (5)

delete A bar block lug block;
An inner clevis and an outer clevis rotatably connected to both ends of the lug block, the assembly protrusion protruding along a length direction;
A hollow body made of carbon fiber reinforced plastic, the main bar being inserted into and fixed with the assembly protrusion of the inner clevis at both ends;
A bracket which is fixed to a mount for fixing the wheel to the vehicle body, wherein the assembly protrusion of the outer clevis is inserted into and fixed in the longitudinal direction;
The assembling protrusions of the inner clevis and the outer clevis are formed into polygonal cross sections, and the inner side shapes of the main bar and the bracket recess are formed into polygonal shapes corresponding to the assembling protrusions of the inner clevis and the outer clevis. Length adjustable car carbon fiber reinforced plastic strut bar. The length adjustable car carbon fiber reinforced plastic strut bar according to claim 2, wherein the lug block and the connection portion between the inner clevis and the outer clevis are coated with a flexible cover which is a hollow body having elastic flexibility. . The method of claim 3, wherein the main bar and the inner clevis is mutually bonded by a separate fastening means without a separate fastening means, the bracket and the outer clevis is characterized in that the mutual bonding by a bonding or fusion without a separate fastening means Car carbon fiber reinforced plastic strut bar with adjustable length. The method according to claim 4, wherein the lug block and the inner clevis and the outer clevis is rotatably connected to each other by a fastening means;
The fastening means includes a pair of washers;
A insertion pin inserted through the pair of washers with the lug block and the inner clevis or the outer clevis interposed therebetween;
Length-adjustable vehicle carbon fiber reinforced plastic strut bar, characterized in that it comprises a split pin is inserted through the radially through the insertion pin in the radial direction.

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