KR101672276B1 - Guide post - Google Patents

Abstract

The guide post according to an embodiment of the present invention is characterized in that the guide post surrounds at least a part of an outer circumferential surface of the main frame and is formed integrally with the main frame, at least one end And an end cap formed integrally with the end cap and forming a part of the main frame and having a hollow interior shape, As shown in FIG.

Description

Guide Post {GUIDE POST}

The present invention relates to a guide post, and more specifically, to a guide post which is integrally manufactured.

Generally, guide posts are installed on the roads to distinguish roads, or between roads and walkways to distinguish roads and walkways. That is, the guide posts can be largely distinguished as road guide posts and walkway guide posts.

A road guidepost that distinguishes between roads and roads distinguishes the direction of a car such as a car, a bus, or a bicycle, and functions to prevent collision of a car that is running in both directions.

In addition, a guide post for a walkway that distinguishes a road from a walkway has a function to prevent a pedestrian crossing accident or to prevent an accident that a running vehicle enters a walkway.

Such a walkway guide post may be provided along with a bushing provided on the walkway.

The guide posts can generally serve as a separator. It is common to install a guide post made of metal with good durability in order to prevent collision of the two-way vehicle, to control the direction of travel, and to prevent collision between the vehicle and the pedestrian.

In other words, the guide posts may require the need for shock absorption and strong durability to prevent various types of collision.

In order to enhance the shock absorbing function of the guide post, a guide spring having a leaf spring can be manufactured. In the related publication, there is a publication No. 10-2011-0133206.

Although the technique disclosed in the above publication can help prevent vehicle departure, since the guide post is basically made of metal, there is a disadvantage that the metal material acts as a greater risk factor in an accident caused by collision of the vehicle have.

In addition, such guide posts may have discomfort during installation due to their heavy weight.

In addition, since the guide posts generally comprise a core material made of a metal material and plastic is added to the outer surface of the core material, a separate manufacturing process is generally required to produce the guide posts.

Accordingly, it is difficult to produce various guide posts having a function and a design suitable for the needs.

SUMMARY OF THE INVENTION The present invention has been conceived in view of the foregoing, and an object of the present invention is to provide an efficient method for manufacturing a guide post and a guide post manufactured by such a method.

The present invention is intended to provide a guide post for protecting operators or pedestrians on the road or in India.

The present invention is intended to improve strength, stiffness, corrosion resistance, fatigue life, abrasion resistance and impact resistance of a guide post.

The present invention aims at producing a lightweight guide post.

The present invention is intended to allow the production of guide posts of complex and various shapes.

The present invention aims at reducing the manufacturing cost of the guide post.

The present invention aims at achieving excellent surface quality of a guide post.

According to an aspect of the present invention, a guide post is disclosed. The guide posts surrounding at least a portion of an outer circumferential surface of the main frame and integrally molded with the main frame; And an end cap forming an end of at least one of both ends of the main frame and a body formed integrally with the end cap and forming a part of the main frame, and a main frame made of a fiber-reinforced resin molded member.

Also disclosed is a method for manufacturing a guide post according to an embodiment of the present invention. The method comprises the steps of forming a mainframe by injection molding or extrusion using a prepreg impregnated with a first resin by injecting a reinforcing fiber with a first resin into a roll press; And inserting the main frame into a mold having a specific pattern and inserting a second resin into the main frame as an insert member, thereby integrally forming the guide posts, A cover surrounding at least a portion and being molded integrally with the main frame; And an end cap forming an end of at least one of both ends of the main frame and a body formed integrally with the end cap and forming a part of the main frame, and a main body including a main body.

The present invention can provide an efficient method for producing a guide post and a guide post made by such a method.

The present invention can provide a guide post for protecting a passenger or a pedestrian of a road or an Indian.

The present invention can improve the strength, stiffness, corrosion resistance, fatigue life, wear resistance and impact resistance of the guide post.

The present invention can produce a lightweight guide post.

The present invention makes it possible to manufacture a guide post of complicated and various shapes.

The present invention can reduce the manufacturing cost of the guide post.

The present invention can achieve excellent surface quality of the guide post.

1 is a top view, a cross-sectional view and a partial enlarged view of a guide post according to an embodiment of the present invention.
2 shows a perspective view of a guide post according to an embodiment of the present invention viewed from the outside.
3 shows an exploded view of a cover, an end cap and a body constituting a guide post, according to an embodiment of the present invention.

Various embodiments and / or aspects are now described with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that such aspect (s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of one or more aspects. However, it is to be understood that these aspects are illustrative and that some of the various ways of practicing the various aspects of the principles of the various aspects may be utilized and that the described teachings are intended to include both such aspects and their equivalents.

In addition, the term "or" is intended to mean " exclusive or " That is, it is intended to mean one of the natural inclusive substitutions "X uses A or B ", unless otherwise specified or unclear in context. That is, X uses A; X uses B; Or when X uses both A and B, "X uses A or B" can be applied to either of these cases. It should also be understood that the term "and / or" as used herein refers to and includes all possible combinations of one or more of the listed related items.

It is also to be understood that the term " comprises "and / or" comprising " means that the feature and / or component is present, but does not exclude the presence or addition of one or more other features, components and / It should be understood that it does not. Also, unless the context clearly dictates otherwise or to the contrary, the singular forms in this specification and claims should generally be construed to mean "one or more. &Quot;

Although plastic has an advantage in terms of production cost and variety of design, it generally has a weak strength or a low heat resistance. Therefore, there is a problem in terms of strength and heat resistance when used with a guide post .

Therefore, a general guide post can be formed by forming a frame of an inner metal material and adding plastic to the outer surface of the frame. However, such a metal material is disadvantageous in terms of cost, and there is a problem in that it is not easy to move during installation due to its high weight.

As a method for solving such a problem, FRP (fiber reinforced plastic) formed by combining reinforcing fibers such as carbon fiber, Kevlar, glass fiber and the like with a resin can be considered.

In the case of such a fiber-reinforced plastic, it is possible to achieve strength and heat resistance close to the existing guide post-use steel plate and / or aluminum.

The guide posts formed from such (fiber reinforced) plastics can be manufactured in various shapes by various methods, unlike metal materials such as aluminum. For example, such a guide post can be produced by an injection molding technique in which a molding material is heated and melted, injection-filled into a specific mold, and solidified or cured to be molded.

Pre-press refers to a molding material pre-impregnated with a (matrix) resin in a reinforcing fiber as an intermediate substrate of a fiber-reinforced resin-formed member (i.e., fiber-reinforced plastic). A molded product can be formed by laminating prepregs and heating and pressing them to cure the resin. Depending on the type of reinforcing fiber, it can be distinguished as a unidirectional prepreg and a cross prepreg.

1 is a top view, a cross-sectional view and a partial enlarged view of a guide post according to an embodiment of the present invention.

The terms "mainframe" and "body ", as used herein, are often used interchangeably.

It will also be apparent to those skilled in the art that the shape of the guide posts shown in Fig. 1 is merely exemplary and that various shapes of guide posts can be formed.

For example, in FIG. 1, the main frames 101 and 105 and the cover 103 are integrally formed, and the shape of the cover 103 may be changed depending on the shapes of the main frames 101 and 105. In FIG. 1, As shown in the figure, the main frames 101 and 105 and the cover 103 may be formed as circular columns, and may include various shapes such as square pillars and triangular pillars.

1, the guide post 100 according to one aspect of the present invention may be composed of a cover 103 and main frames 101 and 105. As shown in FIG.

Furthermore, according to one aspect of the present invention, the main frames 101 and 105 may include a body 101 formed between end caps 105 and end caps 105 formed at both ends.

In one aspect of the present invention, the end cap 105 may be formed on one of the upper portion and the lower portion of the body 101.

In one aspect of the present invention, the body 101 and the end cap 105 may be integrally formed and formed. Generally, since the body 101 and the end caps 105 of the guide posts made of steel and aluminum are manufactured separately from each other, not only an individual manufacturing process is required but also a manufacturing process for individually assembling the pieces Additional processes are inevitably required.

However, since the guide post according to one aspect of the present invention can be integrally manufactured through injection molding (for example, insert injection of a prepreg), unnecessary processes (for example, assembly of each component, etc.) Can be removed. That is, the main frames 101 and 105 according to one aspect of the present invention can be integrally formed into a simplified process through a specific mold having a pattern formed in advance. The guide post 100 according to one aspect of the present invention may have various shapes, for example, a guide post of a low height or a high height according to a user's preference.

In one aspect of the present invention, at least one of the cover 103 and the main frames 101 and 105 of the guide post 100 may further include a connection portion for connecting the plurality of guide posts to each other.

For example, although not shown in FIG. 1, the guide posts 100 may further include connecting portions for connecting the guide posts 100 at regular intervals after the guide posts 100 are installed on the ground. At least one of the frame and the main frame may have a binding portion for binding the connection portion.

1, the binding portion and the connection portion may be installed in the upper portion 103b or the side portion 103a of the cover 103 with respect to the position of the binding portion and the connecting portion, .

The upper portion 103b of the cover 103 may be opened and the end cap 105 of the main frames 101 and 105 may be opened when the connection portion is installed on the upper portion 103b of the cover 103. [ It is also opened to form a binding portion. Accordingly, the connection of the plurality of guide posts 100 allows the coupling portion to connect the coupling portion.

As shown in FIG. 1, the cover 103 may be further provided with a reflector and an illumination lamp on at least a part of the outer circumferential surface of the cover 103. For example, a reflector or a reflective tape may be attached to the upper portion 103b or the side portion 103a of the guide post 100. [ Such a reflective tape may help to locate the guide post 100 to a vehicle operator or a pedestrian, for example, by reflecting incident light.

In addition, a similar function can be realized by providing an illumination lamp instead of the reflection plate or the reflection tape. Further, the illumination lamp may be an illumination lamp using electric energy or solar energy. For example, the illumination light may include LEDs, which may illuminate the position and presence of the guide posts through blinking of the LEDs and / or improve the design aesthetics of the guide posts.

According to one aspect of the present invention, the upper portion 103b or the side portion 103a of the cover 103 may be a place where the reflector or the illumination lamp can be positioned, and a connection portion for connecting the guide posts 100 in a plurality Or a fastening portion. That is, the upper portion 103b or the side portion 103a of the cover 103 shown in Fig. 1 is an illustrative example only, and is not limited thereto.

As shown in FIG. 1, the cover 103 may be formed of a soft plastic.

The cover 103 can be manufactured through an insert injection method, which can be formed by inserting a prepreg into a mold with an insert member and injecting resin into the mold.

That is, according to one aspect of the present invention, the main frame 101 may be composed of a prepreg, and the cover 103 may be composed of the injected resin.

According to one aspect of the present invention, a method for manufacturing the cover 103 will be described below.

As shown in FIG. 1, the body 101 of the main frame may include at least one of an annular protruding portion and an annular display portion 102.

The projecting portion or the display portion 102 can be integrally formed when the guide post is manufactured.

The guide posts are generally fixed to the ground. In order for the guide post to be fixed to the ground, a space occupied by a portion of the guide post may be provided at a lower portion of the ground.

The annular protrusion or annular indicator 102 may help determine how deep the guide post will be vertically buried from the ground to the bottom of the ground.

The position of the projecting portion or the display portion 102 may be variable depending on the ground environment in which the guide post or the person or guide post to be installed is installed.

The projecting portion or display portion 102 may be a reference line for determining to which portion of the main frame 101 the cover 103 of the guide post covers.

Therefore, in order to satisfy the above condition, the annular protruding portion or the annular display portion 102 can be manufactured in the body of the main frame.

That is, the annular protrusion or the annular display portion 102 may be a reference line for how much the body 101 is embedded in the bottom of the ground to fix the guide post to the ground.

In other words, the projecting portion or the display portion 102 can be a basis for determining the depth of the ground for installing or embedding the guide post.

In FIG. 1, the body 101 includes an annular protrusion 102. The main body 101 of the main frame includes not only the annular protrusion 102 but also various displays or shapes for catching a reference point of embedding when a part of the guide post is buried under the ground can do.

According to one aspect of the present invention, the end cap 105 is integrally attached to an end of the body 101 to form main frames 101 and 105, and the main frames 101 and 105 are formed by an injection molding technique Can be produced. An exemplary method for making a mainframe according to one aspect of the present invention will be described below:

First, the prepreg impregnated with the first resin can be formed by injecting the reinforcing fibers together with the first resin into a roll press. The reinforcing fiber may include at least one of carbon fiber, glass fiber, and aramid fiber.

In addition, the reinforcing fibers according to one aspect of the present invention may include spectra fibers, Heracron fibers, Kevlar fibers, and / or Dyneema fibers . The first resin according to one aspect of the present invention may comprise a thermoplastic resin and / or an epoxy resin.

In one aspect of the present invention, the first resin is at least one resin selected from the group consisting of polypropylene (PP) resin, polyamide (PA) resin, polyphenylene sulfide (PPS) resin, acrylonitrile-butadiene- Resin, and / or polycarbonate (PP) resin.

As described above, by injecting the reinforcing fiber and the first resin into the roll press, a prepreg in which the first resin is impregnated can be formed.

The prepreg formed as described above may have various thicknesses, such as, for example, 0.2 mm, 0.3 mm and 0.5 mm. Further, the formed prepreg can have, for example, a flat plate shape. The thickness of the prepreg can be variably formed based on the kind, type, and / or shape of the guide post to be manufactured.

The weight ratio (wt.%) Of the impregnated reinforcing fiber to the total weight of the formed prepreg is based on the type of reinforcing fiber used, the forming method, the required stiffness, shape, purpose and / (For example, 50 to 80% by weight).

The reinforcing fibers constituting the prepreg may have various fibers, for example, fibers having a tensile elasticity of 1000 to 40,000 kg / mm ² and a tensile strength of 50 to 500 kg / mm ² .

Then, by heating the formed prepreg, the first resin impregnated in the prepreg can be melted. Through the melting of the impregnated first resin, the shape of the formed prepreg can be varied, so that it is easy to insert into various shapes and / or molds of various sizes. Accordingly, the compatibility between the prepreg and the mold can be increased.

The heating of the prepreg can be realized by various methods. For example, the prepreg may be heated by passing the formed prepreg through a thermal conveyor. As another example, the formed prepreg can be heated through a separate heating device.

In heating the prepreg, the molten state of the impregnated first resin can be checked. That is, when the prepreg is heated, the first resin impregnated in the prepreg can be melted thereby, and the method can check the melting state of the first resin. This check of the melting state can be performed periodically or aperiodically. The check of the molten state of the impregnated first resin may be implemented through a separate sensing device.

The step of checking the melting state of the first resin may be omitted by heating for a predetermined threshold time. That is, the melted state of the first resin can be adjusted to a desired state through heating at a constant temperature for a certain period of time. In this case, the heating device may include a separate timer.

Then, for example, in the case where the molten state of the impregnated first resin is in a molten state of 60%, the prepreg including the impregnated resin can be inserted into the mold. That is, when about 60% of the impregnated resin is melted through the heat conveyor, insert injection can be performed by inserting the resin into the mold.

The prepreg can be formed into a specific thickness and inserted into the mold, or a plurality of prepregs can be laminated and inserted into the mold to form a specific thickness.

The prepreg inserted in the mold can form the core material (i.e., the main frame) after the insert injection is completed.

The molten state of the impregnated resin can be variably determined based on the type of the impregnated resin, the type of the resin to be injected, the size and shape of the mold to be inserted, and / or the shape and type of the guide post to be produced.

A mold in which a main frame injected or extruded using a prepreg or a prepreg is inserted may mean a frame for producing various types of injection molded articles. Such a mold may have various shapes depending on the type and / or design of the guide post to be manufactured.

Then, the guide post can be manufactured through the insert injection method by injecting the second resin into the mold using the injection molded or extruded main frame as the insert member using the prepreg or prepreg. For example, the guide posts manufactured through the insert injection method may include a cover, an end cap, and a body.

Further, such a guide post can be molded integrally.

Further, as a function that the end cap 105 can have by being integrally coupled to the body 101, the end cap 105 can be made of a material such as, for example, It is possible to prevent the liquid from flowing into the inside thereof.

In one aspect of the present invention, the method of manufacturing a guide post may further include measuring the performance of the integrally formed guide post. In this measuring step, it is determined whether the amount of deformation when a predetermined weight (for example, a weight of 100 kg) is repeated a predetermined number of times (for example, 800,000 times) with the molded guide post is less than or equal to a threshold value A durability measurement step and a corrosion resistance measurement step of measuring the corrosion state of the guide post by spraying saline at a predetermined temperature (e.g., room temperature) and a predetermined concentration (e.g., 4-6%) with a matched guide post It is possible.

According to one aspect of the present invention, the second resin may be a soft plastic, and may include an elastic resin, a thermosetting resin, or a thermoplastic resin.

In another aspect of the present invention, the second resin may comprise the same resin as the first resin.

In addition, the second resin may comprise the same or different resins as the first resin.

The above-mentioned thermosetting resin may include, for example, an epoxy resin, an unsaturated polyester, a vinyl ester, a phenol and the like. The above-mentioned thermoplastic resin may include, for example, polyamide, polybutylene terephthalate, ABS, polyphenylene sulfide, polypropylene, polyethylene and the like.

In addition, the portion of the guide post 100 formed by the second resin integrally with the first resin may be the cover 103, which is a component of the guide post 100.

Further, according to one aspect of the present invention, the first resin and the second resin may include a thermoplastic resin and a thermosetting resin.

Through the above-described method, guide posts of various shapes can be produced according to various types of molds. That is, the guide post generated through the insert injection can have various and complex shapes as compared with the conventional guide post including steel and aluminum.

Further, the guide post manufactured by the above-described method can improve strength, stiffness, corrosion resistance, fatigue life, abrasion resistance, impact resistance, and the like compared with general plastic products, and can be made lighter have.

In addition, by the above-described method, not only the manufacturing cost of the guide post can be reduced, but also excellent surface quality of the shell plate of the guide post can be achieved. As a result, mass production is possible and the coating process may be eliminated.

2 shows a perspective view of a guide post according to an embodiment of the present invention viewed from the outside.

Figure 2 is shown for further discussion of what has been described above in connection with Figure 1.

3 shows an exploded view of a cover 103, an end cap 105, and a body 101 constituting a guide post 100, according to an embodiment of the present invention.

3 is an exploded view of a side step according to an embodiment of the present invention. The components shown in FIG. 3 are only exemplary shapes, and as described above, the guide posts according to one aspect of the present invention can be formed integrally with at least two components in one process.

Fig. 3 is also shown for the sake of further explanation of the contents described above with reference to Fig. 1, like Fig.

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

Claims (7)

As a guide post,
A cover surrounding at least a portion of an outer circumferential surface of the main frame, and integrally molded with the main frame; And
An end cap forming at least one end of both ends of the main frame and a body formed integrally with the end cap and forming a part of the main frame, And a main frame made of a fiber-reinforced resin molded member,
The main frame includes:
Forming a prepreg impregnated with the first resin by injecting the reinforcing fibers together with the first resin into a roll press;
Melting the first resin impregnated by heating the formed prepreg;
Checking the molten state of the impregnated first resin;
In order to improve the compatibility with the shape of the prepreg and the shape of the mold for injection molding, when the molten state of the impregnated first resin reaches a predetermined standard, a prepreg containing the impregnated first resin in a molten state Inserting the legs into a mold, the predetermined criterion being determined based on the type of impregnated resin, the type of resin to be injected, the size and shape of the mold to be inserted, and the type of panel to be produced; And
And obtaining the main frame as a resultant core of the inserting step,
The guide post is formed integrally by inserting the main frame into a metal mold having a specific pattern and inserting the second resin with the main frame as an insert member.
The end cap prevents the second resin from flowing into a body having an empty shape inside,
Wherein the body further comprises at least one of an annular protrusion integrally formed with the body and an annular display integrally molded with the body,
The annular projection and the annular display portion are provided with a guide post, which serves as a reference line for mounting the guide post on the ground, delete The method according to claim 1,
At least one of the cover and the main frame,
A connecting portion for connecting the guide posts in a plurality,
Further comprising
Guide post The method according to claim 1,
The cover
And at least one of a reflection plate and an illumination lamp attached to at least a part of an outer circumferential surface of the cover,
Guide post. The method according to claim 1,
The cover
Characterized in that it is made of soft plastic.
Guide post. delete As a guide post producing method,
Forming a prepreg impregnated with the first resin by injecting the reinforcing fibers together with the first resin into a roll press;
Melting the first resin impregnated by heating the formed prepreg;
Checking the molten state of the impregnated first resin;
In order to improve the compatibility with the shape of the prepreg and the shape of the mold for injection molding, when the molten state of the impregnated first resin reaches a predetermined standard, a prepreg containing the impregnated first resin in a molten state Inserting the legs into a mold, the predetermined criterion being determined based on the type of impregnated resin, the type of resin to be injected, the size and shape of the mold to be inserted, and the type of panel to be produced;
Obtaining a main frame as a resultant core of the inserting step; And
Inserting the main frame into a metal mold having a specific pattern and inserting a second resin into the main frame as an insert member, thereby integrally molding the guide posts;
The guide post
A cover surrounding at least a portion of an outer circumferential surface of the main frame, and integrally molded with the main frame; And
An end cap forming at least one end of both ends of the main frame and a body formed integrally with the end cap and forming a part of the main frame, And a main frame,
The end cap prevents the second resin from flowing into a body having an empty shape inside,
Wherein the body further comprises at least one of an annular protrusion integrally formed with the body and an annular display integrally molded with the body,
Wherein the annular projection and the annular display portion are baselines for mounting the guide post on the ground.

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