KR20040106724A - Sun Visor for car and method of manufacturing the same - Google Patents

Abstract

PURPOSE: A sun visor for a vehicle and a manufacturing method thereof are provided to improve durability and structural strength by combining an upper case and a lower case through assembling and applying a wire as a frame retaining member and to simplify the manufacturing process by integrally forming a metal rim wire, an extension bar housing and an inner support reinforcement frame. CONSTITUTION: A sun visor for a vehicle comprises a main frame, an extension bar unit(130), upper and lower cases(150,160), and a mirror case. The main frame consists of a metal rim wire(110) and an inner support reinforcement frame(120). The inner support reinforcement frame is integrated with the metal rim wire and the extension bar unit. The upper case and the lower case are made from expanded polypropylene. Fitting grooves(153) are formed on the lower case and fitting protrusions are formed on the upper case. The upper case is combined with the lower case by assembling the fitting grooves with the fitting protrusions.

Description

Sun visor for car and manufacturing method thereof {Sun Visor for car and method of manufacturing the same}

The present invention relates to a sun visor for automobiles and a method for manufacturing the same, and more particularly, to a sun visor for automobiles which is easy to manufacture and has high recyclability.

Sun Visor is a facility installed in automobiles for the purpose of blocking sunlight.

Such sun visors are generally manufactured in a structure in which a low-density polyurethane is foamed on a steel wire frame and then an outer cover is coated thereon. The structure of such a sun visor is low in structural strength, there is a problem that is easily deformed or broken.

In addition, recently, as interest in environmental protection has increased, studies on reuse after disposal of various products have been actively conducted. In this environment view, the conventional sun visor structure is difficult to be separated between the steel wire frame and the foam layer. There is a disadvantage that the operation is not easy.

The present invention has been made to improve the above problems, and the object of the present invention is to provide a sun visor for automobiles and a method for manufacturing the same, which are easy to reproduce and manufacture while increasing structural strength.

1 is a front view showing a state in which the sun visor is mounted on the vehicle according to a preferred embodiment of the present invention,

2 is a perspective view illustrating an open state of the cover of the mirror case of FIG.

3 is an exploded perspective view illustrating some elements of FIG. 1 in isolation;

Figure 4 is an exploded perspective view showing the separation of the expansion bar unit of Figure 1,

5 is a partial cross-sectional view showing an example of a coupling structure of the expansion bar and the slider of Figure 4,

6 is a partial cross-sectional view showing an example of the rotational structure of the expansion bar and the slider of Figure 4,

FIG. 7 is a partially extracted perspective view illustrating another example of a rotational structure of the elastic bar and the slider of FIG. 4;

8 is a process chart showing a manufacturing process of the sun visor according to a preferred embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

100: sun visor 110: metal border wire

120: internal support reinforcement frame 130: expansion bar unit

150: lower case 160: upper case

In order to achieve the above object, a sun visor for an automobile according to the present invention is mounted on an automobile, and in a sun visor used for shading, a metal rim wire formed by bending in a shape corresponding to at least a part of an outer edge to be formed. And a main frame having an internal support reinforcement frame integrally formed with the metal frame wire with a synthetic resin material to reinforce the support force of the metal frame wire; And upper and lower cases coupled from the upper and lower surfaces of the main frame.

Preferably the upper and lower cases are molded from expanded polypropylene material.

In addition, the inner support reinforcing frame is formed with a mirror mounting holder for mounting a mirror case, the upper case is formed to expose the coupling portion of the mirror mounting holder portion to mount the mirror case from the outside.

According to another aspect of the present invention is further provided with a stretchable bar unit having a stretchable bar that is fitted and coupled to both ends of the metal frame wire and integrally molded with the inner support reinforcement frame.

In addition, the production method of the sun visor according to the present invention to achieve the above object is a. Coupling a metal frame wire formed to correspond to at least a portion of an outer frame to be formed, and a stretch bar housing of a stretch bar unit fitted to both ends of the metal border wire to form a primary assembly; I. Forming a secondary binder by integrally molding an inner support reinforcement frame with a synthetic resin material on the primary binder; All. Coupling upper and lower cases formed of expanded polypropylene material to the upper and lower portions of the secondary binder; la. Covering the outer surface of the upper and lower cases; hemp. And coupling an elastic bar to the elastic bar housing by penetrating the outer shell.

In the forming of the inner support reinforcement frame, the inner support reinforcement frame is formed to form a mirror mounting holder portion for mounting a mirror case, and the outside of the upper case in which the mirror mounting holder portion is exposed after the covering of the outer shell. It is preferable to further include a; coupling the mirror case to the mirror mounting holder portion through the combined outer shell.

Hereinafter, with reference to the accompanying drawings will be described in more detail a sun visor for automobiles and a method for manufacturing the same according to an embodiment of the present invention.

1 is a front view showing a state in which the sun visor is mounted on the vehicle according to a preferred embodiment of the present invention, Figure 2 is a perspective view showing an open state of the cover of the mirror case of Figure 1, Figure 3 is An exploded perspective view showing some elements separated.

1 to 3, the sun visor 100 includes a main frame, an extension bar unit 130, upper and lower cases 150, 160, and a mirror case 180.

In FIG. 1, reference numeral 210 denotes a fixing coupling holder installed in the vehicle to be coupled with the elastic bar unit 130, and 220 denotes a detachable holder installed in the vehicle so that the sun visor 100 may be detachable.

The main frame includes a metal frame wire 110 and an inner support reinforcement frame 120.

The metal rim wire 110 corresponds to a rim of the elastic bar housing 132 of the elastic bar unit 130 that is bent near to a quadrangle in a shape corresponding to the rim of a metal material, for example, a steel wire, and inserted at both ends thereof. It was applied to form a C-shaped open stomach with a structure cut in length.

Unlike the illustrated example, when the elastic bar unit 130 is not applied, the metal rim wire formed in the closed loop shape may be applied.

The inner support reinforcing frame 120 is a metal frame wire 110 and the elastic bar unit 130 so as to increase the structural strength of the outer frame formed to form a closed track by the metal frame wire 110 and the elastic bar unit 130 It is molded integrally with).

The internal support reinforcement frame 120 is formed of a synthetic resin material, for example, PVC, polypropylene (PP), and ABS (ABS) material.

In addition, the internal support reinforcement frame 120 extends from each side of the mirror case mounting holder portion 121 and the mirror case mounting holder portion 121 having a structure in which the mirror case 180 can be mounted, thereby extending the metal frame wire ( And a reinforcing rib 122 coupled to the elastic bar housing 132 of the elastic bar unit 130.

The mirror case mounting holder portion 121 is formed in a substantially rectangular frame, and a plurality of coupling grooves 123 for coupling the mirror case 180 are formed in each side. In this regard, the mirror case 180 has a coupling rib 185 which can be fitted into the coupling groove 123 at a corresponding position on the body.

The mirror case 180 includes a main body on which a mirror 183 is mounted and a coupling rib 185 for coupling with the mirror case mounting holder 121 is formed at an edge thereof, and a cover 181 rotatably coupled to the main body. do. Of course, the cover 181 may be omitted.

The coupling method of the mirror case 180 and the mirror case mounting holder 121 may be applied to various coupling methods in addition to the illustrated method.

The elastic bar unit 130 is formed to be stretchable and rotatable with respect to the body of the sun visor 100.

The structure of the stretchable bar unit 130 will be described with reference to FIGS. 4 to 6.

Referring to the drawings, the stretchable bar unit 130 includes a stretchable bar 131, a stretchable bar housing 132, and a slider 133.

The telescopic bar housing 132 includes a guide tube 136, a front cap 135 and a rear cap 134.

One end of the elastic bar 131 may be coupled to the fixed coupling holder 210, and the other end thereof may be coupled to the slider 133.

The extension bar 131 is rotatably coupled to the extension bar portion 131b that is bent to extend a predetermined length in the form of a circular rod, and the bent end of the extension bar portion 131b, and is coupled to the fixed coupling holder 210. The other end of the engaging portion 131a and the extension bar portion 131b is formed with a groove 131c formed for engaging with the slider 133.

The coupling structure of the coupling portion 131a coupled to the fixing coupling holder 210 installed in the vehicle may be various methods depending on the application method, and a detailed description thereof will be omitted. Preferably the coupling portion 131a is applied to the structure rotatably coupled to the extension bar portion (131b).

The groove 131c formed to a predetermined depth in the middle of the other end portion of the elastic bar 131 is for coupling with the slider 133 described later.

In addition, a portion in the longitudinal direction from the groove 131c forming portion of the elastic bar 131 is formed in a conical shape so that the outer diameter is gradually narrowed. In addition, in both sides of the groove 131c forming portion, a portion 131d, which is surface-treated in the longitudinal direction, is formed on both sides.

Slider 133 is formed to be retracted in the guide tube 136 of the elastic bar housing 132, but is forcibly coupled when the elastic bar 131 described above is inserted.

Reference numeral 133b is a sliding guide rib formed to be partly spaced from the body so that it can be slightly stretched when pressed so that the sliding can be smooth.

In addition, the structure of the inner hole 133d extending inward from the insertion hole 133a formed in the slider 133 may be fitted into the groove 131c of the elastic bar 131 as shown in FIG. 5. The engaging jaw 133c is formed.

More preferably, the cross section of the inner hole 133d is formed in a polygonal shape as shown in FIG. 6 so that the expansion and contraction bar 131 can be rotated but the constraining angle can be constrained to a certain angle range. In this case, when the surface treatment portion 131d of the elastic bar 131 is forcibly rotated to be parallel to each other, the rotation angle can be manipulated in multiple stages. Of course, the structure of the insertion hole (133a) and the inner hole (133d) may be formed in the same polygon.

Another example of a slider in which the expansion bar 131 can be rotated by an angle range is illustrated in FIG. 7. Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

Referring to the drawings, the slider 133 includes a guide body 133c, a coupling connecting bar 133h, and first and second elastic restraining members 133d and 133f.

The guide body 133c is integrally formed symmetrically with each other by the connecting bar 133h.

The first elastic restraining member 133d is formed to correspond to the surface treatment portion 131d of the elastic bar 131, but has a lower structure. Reference numeral 133e is a coupling protrusion fitted into the coupling groove 133g formed in the second elastic restraint member.

The first and second elastic constraining members are fitted to each other at the upper and lower portions of the connection bar 133h, and are formed of a metal material so as to be elastically relaxed when the surface treatment part 131d of the elastic bar 131 rotates. desirable.

On the other hand, the guide tube 136 is formed in a hollow cylindrical shape having a cylindrical portion having an inner space portion (136a), the coupling guide piece for coupling with the rib 122 of the inner support reinforcement frame 120 at the lower end of the cylindrical portion (136b) ) Is formed.

Coupling guide piece (136b) is formed along the longitudinal direction of the guide tube 136 in the 'T' shape with the end extended.

The front cap 135 is formed to be fitted into the guide tube 136, the through-hole 135a through which the elastic bar 131 can be formed, the bottom of the metal rim wire 110 is formed An insertion groove 135b that can be inserted is formed.

In the rear cap 134, an insertion hole 134a into which the metal frame wire 110 can be inserted is formed at a predetermined depth.

The elastic bar unit 130 of this structure inserts the slider 133 into the guide tube 136 and then fits the front cap 135 and the rear cap 134 to the guide tube 136, and then expands and contracts the elastic bar ( 131 is forcibly pressed into the slider 133 through the through hole 135a of the front cap 135 to be coupled. For ease of forced indentation, the coupling counterpart or the whole of the slider 133 and / or the elastic bar 131 may be formed of a flexible synthetic resin.

The lower case 150 and the upper case 160 surround the main frame and the elastic bar housing 132 from the outside, and a portion of the through hole 135a of the front cap 135, which is an insertion portion of the elastic bar 131, and detachment. The wire portion for coupling with the holder 220 is formed to be exposed. Reference numeral 155 is a wire exposure groove formed in the lower and upper cases 150 and 160 so as to expose a portion of the coupling wire with the detachable holder 220, and reference numeral 157 denotes an exposed metal edge wire. It is coupled to the 110 and is a ring member for coupling with the removable holder 220.

In addition, the upper case 160 is open so that the mirror case 180 is coupled to the mirror case mounting holder 121 from the outside of the upper case 160 so that the area corresponding to the mirror case firewood holder 121 is exposed. Is formed.

The upper case 160 and the lower case 150 is formed in a structure in which the outer line is matched with each other in an appropriate thickness.

In addition, a groove of a corresponding pattern is formed so that the inner support reinforcement frame 120 and the metal frame wire 110 can be properly seated for ease of assembly and ease of assembly.

More preferably, in order to increase the coupling force between the lower case 150 and the upper case 160, forming protrusions and grooves for fitting to the lower case 150 and the upper case 160 in a space not occupied by the main frame is formed. desirable. In the drawings, reference numeral 153 is a fitting groove formed in the lower case 150, and a protrusion that may be inserted into the fitting groove in the upper case 160 at a position corresponding to the fitting groove 153. C) is formed.

The lower and upper cases 150 and 160 are preferably formed of expanded polypropylene (EPP).

Expanded polypropylene is a non-crosslinking foaming agent, which has better cracking, repeating buffering, flexibility and chemical resistance than conventional urethane materials, less heat shrinkage according to temperature, light weight, and provides recyclable advantages. .

The outer shell 170 is applied to the lower and upper cases 150 and 160 as a finishing material, and may be formed of various known materials in the form of a thin sheet.

The manufacturing process of the sun visor of this structure will be described with reference to FIG.

First, the metal frame wire 110 is coupled to the expansion bar housing 132 of the expansion bar unit 130 (step 310). That is, one end of the metal frame wire 110 is inserted into the insertion groove 135b formed in the front cap 135 of the elastic bar housing 132, the other end is inserted into the insertion hole 134a formed in the rear cap 134. The metal frame wire 110 is forcibly inserted while being slightly expanded.

Next, the inner frame of the inner support reinforcement frame 120 is formed by placing a primary assembly in which the metal rim wire 110 and the elastic bar housing 132 are mutually coupled to a mold for forming an internal support reinforcement frame (not shown) (step 320). ).

Thereafter, the upper and lower cases 160 and 150 are coupled to the secondary assembly in which the metal frame wire 110, the elastic bar housing 132, and the inner support reinforcement frame 120 are integrally molded and coupled (step 330). . Of course, the bonding material may be applied to the adhesive surface to enhance the bonding force when bonding.

Thereafter, the outer and upper cases 150 and 160 are combined with the outer skin 170 to the outside to finish (step 340).

Then, the elastic bar 131 is inserted into the elastic bar housing 132 to be combined with the slider 133 (step 350), and the mirror case 180 is coupled to the mirror case mounting holder 121 to complete the production. (Step 360).

As described above, according to the automotive sun visor according to the present invention and a method for manufacturing the same, the upper and lower cases formed of expanded polypropylene with less harmfulness are joined by mutual assembly, and the wire is framed to suppress deformation. By applying it as an outer shape holding member, durability and structural strength are increased, and the manufacturing process is simplified by integrally molding the metal rim wire and the elastic bar housing and the inner support reinforcement frame.

Claims (6)

In the sun visor for automobiles mounted on a vehicle and used for shading, A main frame having a metal frame wire bent and formed in a shape corresponding to at least a portion of the outline frame to be formed, and an internal support reinforcing frame integrally formed with the metal frame wire made of synthetic resin to reinforce the holding force of the metal frame wire. A frame; And an upper case and a lower case coupled to the upper and lower surfaces of the main frame. The sun visor of claim 1, wherein the upper and lower cases are molded from expanded polypropylene material. The method of claim 1, The inner support reinforcing frame is formed with a mirror case mounting holder portion for mounting a mirror case, the upper case is characterized in that the coupling portion of the mirror case mounting holder portion is exposed so that the mirror case can be mounted from the outside Car sun visor made with. The sun visor according to claim 1, further comprising: an extension bar unit fitted to both ends of the metal frame wire and having an extension bar that is formed integrally with the internal support reinforcement frame and that can be stretched. In the manufacturing method of the automotive sun visor mounted on a vehicle and used when shielding light, end. Coupling a metal frame wire formed to correspond to at least a portion of an outer frame to be formed, and a stretch bar housing of a stretch bar unit fitted to both ends of the metal border wire to form a primary assembly; I. Forming a secondary binder by integrally molding an inner support reinforcement frame with a synthetic resin material on the primary binder; All. Coupling upper and lower cases formed of expanded polypropylene material to the upper and lower portions of the secondary binder; la. Covering the outer surface of the upper and lower cases; hemp. Coupling the elastic bar to the elastic bar housing by penetrating the outer shell; and manufacturing a sun visor for an automobile. The method according to claim 5, wherein in the forming step of the inner support reinforcing frame, the inner support reinforcing frame is molded to form a mirror case mounting holder for mounting a mirror case, And coupling the mirror case to the mirror case mounting holder by penetrating the outer shell coupled to the outer side of the upper case formed to expose the mirror case mounting holder after the covering of the outer shell. Method for manufacturing sun visor for automobiles.