KR20070031055A - Handle bar for door of electronic devices - Google Patents

Abstract

The present invention provides a structure in which a fastener is riveted to a pipe part manufactured by drawing, extrusion or high frequency induction heating welding, so that the pipe part itself and the fastening section fastening strength are very high despite the use of a thin pipe part. It is to provide the handlebar fastening structure of electronic door which is strong and beautiful in color and surface.

Handle bar fastening structure of the electronic door of the present invention is a pipe portion 10 of the hollow pipe shape; Finishing material 20 coupled to the one end of the pipe portion 10 by interference fit fastening method; A first fastener (40) having a connecting member (30) coupled to the other end of the pipe portion (10) by a clamping fastening method and seated in a mounting hole (14) of the pipe portion (10); The rivet part 50 is fastened through the rivet hole 43 and the mounting hole 14 of the first fastener 40 so as to press the first fastener 40 to the pipe part 10. Including, the pipe portion 10 is made of any one material selected from a plurality of materials.

Electronics, Handlebars, Pipes, Fasteners, Finishes, Connectors

Description

HANDLE BAR FOR DOOR OF ELECTRONIC DEVICES}

1 is a perspective view for explaining an electronic door handle bar according to the prior art,

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is a perspective view for explaining the configuration of the handlebar fastening structure of the electronic door according to an embodiment of the present invention,

4 is an enlarged cross-sectional view of the circle B shown in FIG.

5 is a cross-sectional view for explaining a coupling state in which the handlebar of the present invention is mounted on the door side;

FIG. 6 is an enlarged cross sectional view of circle C shown in FIG. 5; FIG.

           <Description of Symbols for Main Parts of Drawings>

10: pipe portion 20: finishing material

30: connecting member 40: first fastener

50: rivet portion 60: the second fastener

The present invention relates to a handlebar fastening structure of an electronic door, and more particularly, to fasten a fastener, which is an injection material used for mounting and detaching a door and a handlebar of an electronic product or a home appliance, to a handlebar. A handlebar fastening structure of an electronic door.

In general, doors are coupled to various housings or structures, including electronics and home appliances, and the doors have curved or straight handles to facilitate the transfer of the force to open and close the door to users using such doors. The bar is fitted.

Handle bar means a component that is mounted to the door in the form of a bar (bar) of the handle having a variety of shapes.

The handlebar is mounted to the door so that a predetermined distance is separated from the surface of the door so that a user's finger can enter.

The refrigerator having a door handle according to the prior art is a handlebar which is fixed to the door of the refrigerator through a fastening member, and is disposed to cover the rear of the handlebar, as disclosed in Korean Patent Application No. A refrigerator having a door handle having a rear cap fixed to the door and a front cap elastically coupled along an end portion of the rear cap to cover the front of the handlebar, wherein an air vent front cap has a penetrating formed in the rear cap. Disassembling boss is provided through the hole to protrude to the outside, it is characterized in that the front cap can be disassembled by pushing the disassembly boss in the reverse direction of the front cap assembly.

Here, the handle bar is a place that receives a load such as a binding support force with the door, a tension force required to pull the door, etc., is required to have its own rigidity, and the fastening rigidity between the door and the handle bar is required.

Typically the handlebars are secured to the door by means of screw bolts (hereinafter referred to as 'screws') at the top and bottom, where tapping is necessary for fastening the screw bolts and the front mentioned above to protect the handlebars. The cap or rear cap wraps the handlebars on the outside.

Such handlebars are robust at the time of fastening by using a plurality of screws when fastening with the door, but the fastening rigidity becomes weak after a long time of use, so that the screws may be gradually loosened or shaken, and the handlebar manufacturing and assembly are complicated.

In addition, the conventional handlebar is a shaft member formed by extrusion and is surrounded by the front cap and the rear cap from the outside thereof, so that the rigidity is relatively low, and there is a fear that corrosion occurs in the iron material of the handlebar. For this reason, it is composed of an assembled product that requires a front cap or a rear cap, and thus, there is a disadvantage in that assembly is inconvenient and manufacturing costs are relatively large in mass production.

On the other hand, as another conventional technique, there is a fastening structure in which the handle bar itself is injection molded in the form of a shaft.

As shown in FIG. 1, the handlebar fastening structure according to the related art has a hollow shaft shape, which is relatively weak in durability, corrosion resistance, rigidity, chemical resistance, etc. by the injection molding method, and the shaft portion 1. Each of the upper and lower ends 1a and 1b has a bolted finish 2 and a connector 3, respectively.

The outer surface of the shaft portion 1 has a paint film or a simple coating film, which shows texture or color. However, when exposed to moisture for a long time, a rare corrosion site may be generated and exposed.

In addition, the handle bar according to the prior art is coupled to the shaft member 1 and the finishing material (2) and the connecting member (3) by using a screw fastening method, the shaft part 1 is also fixed to the door through a screw fastening method. .

In more detail, the finishing material 2 is fixed to the upper end 1a of the shaft portion 1 as having a plate shape having a planar area corresponding to the cross-sectional shape of the shaft portion 1; One end of the connecting member 3 is fixed to the lower end 1b of the shaft portion 1.

Here, the other end of the connecting member 3 is fixed to the engaging portion (not shown) of the door through the plurality of bolt holes 3a formed in the thickness direction.

In the prior art, when the shaft portion 1 is mounted on the door, a male injection molding 4 disposed between the shaft portion 1 and the door and a female injection molding formed to be inserted in correspondence with the male injection molding 4 (not shown) Not used). The male injection-molded product 4 has a fastener shape and is fixed to the shaft portion 1 by the fixing bolt 5 as a plurality.

However, in the handlebar fastening structure according to the prior art, since the male injection molding (4) is made of a material and shape structure that does not survive the tightening strength of the fixing bolt (5), the excessive tightening force or rivet fastening method of the fixing bolt (5) There is a risk of being damaged or deformed by tensile or shearing forces.

In addition, since the female injection molding is also fixed to the door by using a screw fastening method, the assembly becomes complicated.

As enlarged in FIG. 2, since the shaft part 1 of the prior art itself is relatively inferior in rigidity by injection, it is relatively thick in order to be installed in a short or double door such as a refrigerator in electronic products, for example. (E.g. more than 2t) has the disadvantage.

In spite of this thickness, the shaft portion 1 of the prior art is manufactured by injection molding, and a plurality of shafts having a predetermined interval along the axial direction at the inner corner of the shaft portion 1 can be guaranteed to ensure self rigidity reinforcement or durability. Reinforcing ribs 6 are further provided to have a relatively heavy disadvantage.

Further, the shaft portion 1 of the prior art is formed at its upper end or lower end, and is further provided with an end connection portion 7 formed between the inner surface in the form of a plate or bridge and integrally provided with a nut-shaped boss in the center. Having structural complexity. Here, the end connection portion 7 is a portion to which a screw component such as a fixing bolt or a fixing screw for fixing the finishing material or the connecting material is fastened.

Further, on the inner circumferential surface of the shaft portion 1, a plurality of nut protrusions 8 for the fixing bolt 5 used to fix the male injection molding 4 described above to the shaft portion 1 are further formed.

In particular, the screw parts can be fastened only by tapping and forming a screw in the nut hole of the boss or the nut protrusion 8 of the end thermal connection part 7.

As can be summarized through such a description, since the handlebar fastening structure according to the prior art is fastened to the male injection molding with a fixed bolt, the fastening method, tension force, shear force, etc. between the handlebar and the male injection molding will be described in the present invention below Compared to the relatively low, the male injection molding has a problem that is loose or rotated in the shaft.

In addition, since the shaft portion itself is formed by injection molding, the handlebar fastening structure of the related art is relatively thick, and a plurality of reinforcing ribs, end connecting portions formed at the top or bottom of the shaft portion, and nut projections are integrally formed on the shaft portion. It has a relatively heavy and complex shape structure, and the assembly is relatively complicated, there is a disadvantage that the product cost is high or the mass production efficiency is relatively low.

In addition, the handlebar fastening structure of the prior art is a situation that the surface treatment by forming a simple paint film or a simple coating film on the surface of the shaft portion, the corrosion resistance, wear resistance, durability, chemical resistance is relatively inferior or product life, quality and aesthetics There is a downside to the feeling.

In addition, the general pipe material itself alone does not satisfy the quality of the electronic door handle bar required by the present invention, and the problems such as surface texture, color, corrosion resistance, simplifying assembly, etc. cannot be fundamentally solved.

The object of the present invention devised to solve such a problem is to provide a structure in which the fasteners are riveted to the pipe part manufactured by drawing, extrusion or high frequency induction heating welding in spite of the use of a thin pipe part. It is to provide the handlebar fastening structure of electronic door which has strong and strong pipe part and fastening section fastening strength and beautiful color and surface.

In addition, another object of the present invention by the rivet fastening of the pipe portion and the fastening section fastening and semi-permanent fastening method, and the combination of the closing material and the connecting material of the interference fitting fastening method at both ends of the pipe portion, to simplify the assembly to reduce the cost It is intended to provide a handlebar fastening structure of an electronic door that can be brought and has excellent anti-loosening performance.

In addition, another object of the present invention is to provide a pipe part material and its coating material excellent in corrosion resistance, durability and impact resistance, and can exhibit excellent quality and fastening force compared to other handlebar products while being lightweight, even when scratch occurs To minimize the occurrence of corrosion and to provide a very economical and reliable handlebar fastening structure for electronic doors.

Objects of the present invention as described above, the pipe portion of the hollow pipe shape; Finishing material is coupled to the one end of the pipe by the interference fitting method; An electronic door handle bar fastening structure having a connection member coupled to the other end of the pipe part by a fastening method, comprising: a first fastening hole seated in a mounting hole of the pipe part; And a rivet part fastened through the rivet hole and the mounting hole of the first fastener to mutually press the first fastener, wherein the pipe part is made of any one material selected from a plurality of materials. It is achieved by the electronic door handlebar fastening structure.

In addition, according to the present invention, the material of the pipe portion is an aluminum coated pipe, any one aluminum selected from AL10 series to AL60 series on the outer surface of the base material made of any one of iron, galvanized steel sheet, hot-dip galvanized steel sheet. It is preferable that the coating material of the alloy (e.g., AL1050, AL1060, AL1070, AL2011, AL2024, AL3003, AL4032, AL5052, AL6061, AL6063) is coated, and that the welded part is welded to the high frequency induction heating welded part during the piping. .

In addition, according to the present invention, the material of the pipe portion is an aluminum welding pipe, which is formed by forming an aluminum alloy material selected from AL10 series to AL60 series by high frequency induction heating welding, anodizing coating on the surface of the base material, It is preferable to form a cover material by any one of surface treatment selected from enamel coating, ceramic coating, and Teflon coating.

In addition, according to the present invention, the material of the pipe portion is preferably produced by plating after coating the copper pipe.

According to the present invention, the material of the pipe part includes a base material molded into a pipe shape using any one material selected from engineering plastics having high high temperature resistance, and a material formed by ceramic coating on the surface of the base material. It is preferable.

In addition, according to the present invention, the first fastener is a polyimide (PI), polyether ether ketone (PEEK), polysulfone (PSF), polyphenylene sulfide (PPS), polyamideimide (PAI), polyester sulfone (PES), polyacrylate (PAR), polyetherimide (PEI) injection molding any one of the engineering plastic material selected, the outer surface of the impact groove for fixing fixed to the elastic step of the second fastener formed on the door side A body formed to be recessed in; A rivet hole penetrated in the height direction from the center of the body; A plurality of rivet fixing ring portions protruding from the inner circumferential surface of the rivet hole to have a semicircular O-ring cross-sectional shape; A position fixing edge protruding from one end of the body with respect to the outside of the rivet hole and having an outer diameter that can be inserted into a mounting hole of the pipe part; A rivet seating portion protruding to have a wall shape at the outer side of the body; It is preferable to have a shape structure including an uneven grip range surface formed between the rivet mounting portion and the rivet hole.

Further, according to the present invention, the pipe portion having the finishing material is door-mounted by the connecting member, and a plurality of first fasteners fastened to the pipe portion by the rivet portion are formed at the fastening position of the door. It is preferable that the fastener is fixedly fixed.

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

3 is a perspective view for explaining the configuration of the handlebar fastening structure of the electronic door according to an embodiment of the present invention, Figure 4 is an enlarged cross-sectional view of the circle B shown in FIG. 5 is a cross-sectional view for explaining a coupling state in which the handlebar of the present invention is mounted on the door side, and FIG. 6 is an enlarged cross-sectional view of circle C shown in FIG.

As shown in Figure 3, the electronic door handlebar fastening structure of the present invention satisfies the product conditions of the handlebar assembly of the door for electronic products as follows.

                      -Below-

1. Aesthetics such as shape, color design and texture as appearance products.

2. Corrosion and discoloration (most important judgment condition).

3. Strength, hardness and mechanical properties.

4. Chemical resistance of handlebar surface.

5. Deformation above a certain temperature.

6. Simple assembly process, efficient productivity and mass production.

7. Competitive price.

The electronic door handlebar fastening structure of the present invention that satisfies all these conditions is any one of the welding pipe type, conventional drawing, extrusion type produced by high frequency induction heating welding, which has a high thickness and excellent strength and hardness. It has the pipe part 10 manufactured by the manufacturing method.

Unlike the prior art, the pipe part 10 of the present invention does not have any reinforcing ribs, nut protrusions, end connecting parts, and the like, and has relatively high durability, corrosion resistance, chemical resistance, and high rigidity. It can be produced by a pipe molding method or a conventional plastic molding process using a low cost material.

At this time, the material of the pipe portion 10 to be used in the present invention is preferably any one selected from the first to eighth material to be described below.

On the other hand, in the embodiment of the present invention, the corrosion characteristics showing the corrosion resistance characteristics, that is, means a relative corrosion state, 'E': excellent, 'G': good, 'U': appropriate, 'P': bad, ' NG ': The relative comparison by a code such as very bad, the pipe part 10 is based on the salt spray test method, such as' accelerated life corrosion test', so that 8 hours of spraying and 16 hours of rest to 1 cycle When defined, it is divided into corrosion characteristic values obtained after a total of 8 cycles.

Hereinafter, materials (first to eighth materials) of the pipe part 10 applicable to the present invention will be described.

First, the first material of the pipe portion 10 is any one of the piping method and manufacturing apparatus (for example, auto-forming pipe forming machine, high frequency roll forming tube, etc.) of the drawing, extrusion, welding method using iron (Fe) material. It can be a pipe manufactured by. Although the first material of the pipe part 10 corresponds to the corrosion property 'NG', the strength is stronger than that of the injection or extruded material, and special painting and heat treatment are possible, but the manufacturing process is expensive and complicated, and corrosion occurs when scratching occurs. .

The second material of the pipe part 10 is a galvanized steel sheet (GI) pipe, which corresponds to the corrosion property 'P', but has a stronger strength than that of an injection or extruded material, and is complicated and expensive during special painting, and when scratches occur. Corrosion also occurs.

The third material of the pipe part 10 is a hot-dip galvanized steel (GA) heat-treated pipe corresponding to the corrosion property 'U', which causes corrosion according to conditions, but also has a relatively high strength, and a complicated manufacturing process during special painting. Expensive and corrosion occurs when scratch occurs.

The fourth material of the pipe part 10 is an aluminum coated pipe, which corresponds to the corrosion property 'E', and the corrosion property is also good and strong. Therefore, the high frequency welded part is also excellent in corrosion resistance, and also inexpensive, but also in corrosion resistance when scratching is also good. Weld spraying is typically performed by a common high frequency welded plasma spraying facility as is well known. For example, the fourth material of the pipe portion 10 is any one aluminum alloy selected from AL10 series to AL60 series on the outer surface of the base material made of any one of iron, galvanized steel sheet, and hot-dip galvanized steel sheet. Example: It is possible to use coated material of AL1050, AL1060, AL1070, AL2011, AL2024, AL3003, AL4032, AL5052, AL6061, AL6063).

The fifth material of the pipe part 10 is an aluminum extrusion pipe made of pure aluminum and aluminum alloy (e.g. AL1050, AL1060, AL1070, AL2011, AL2024, AL3003, AL4032, AL5052, AL6061, AL6063). Corrosion property corresponds to the 'G', the strength is relatively weak by the extrusion method, but the corrosion properties are good, depending on the surface properties of the extruding agent may be degraded and expensive. Anodizing coatings are carried out by conventional anodizing equipment which performs surface sandblasting and anodizing.

The sixth material of the pipe part 10 is an aluminum welding pipe, and any pure aluminum and aluminum alloy selected from AL10 series to AL60 series (for example, AL1050, AL1060, AL1070, AL2011, AL2024, AL3003, AL4032, AL5052, AL6061). , AL6063) The tube is formed by high frequency induction heating welding.

The fourth to sixth materials have corrosion characteristics 'E' as the surface is treated by any one of anodizing coating, enamel coating (matte, glossy), ceramic coating, and Teflon coating on the surface thereof. Burr, hardness, pressure test pressure value, flat test value, corrosion resistance, chemical resistance, abrasion resistance, durability are very good, it is possible to implement a product that can freely change color, design.

In addition, it is preferable that the seventh material of the pipe part 10 is coated after the copper pipe is plated with copper.

In addition, the eighth material of the pipe portion 10 is an engineering plastic to be mentioned below.

For example, the engineering plastics usable in the present invention may be polyimide (PI: Polyimide) (e.g. DuPont trade name 'KAPTON', thermal stability: high temperature resistance of 250 ° C) or polyetheretherketone (PEEK, melting point 336 ° C). It becomes a base material molded to have a pipe shape using any one material selected from the above, it is preferable that the base material includes a material formed on the surface by a ceramic coating method.

In addition, it is preferable that the pipe part 10 of the present invention is manufactured to have a pipe shape by any one of the high frequency roll forming pipe forming method, drawing, and extrusion method except for the material using the engineering plastic.

In addition, the pipe part 10 manufactured by using the metal material (first to seventh materials) disclosed in the present invention is selected from among polymorphs in which a hollow shaft, a circle, a polygon, a round pentagon, a round rectangle and a semicircle are added together. It is preferable to have either cross-sectional shape.

In addition, the finishing material 20 is coupled to one end, for example, the upper end of the pipe part 10.

Finishing material 20 is a finishing plate portion 21 having a plate shape for finishing the corresponding to the end surface cross-sectional shape of one side of the pipe portion 10; A fitting portion 22 protruding from the center of the closing plate portion 21 so as to be inserted into the inner circumferential surface of one end of the pipe portion 10 by an interference fitting fastening method; It has a rim groove 23 formed in the inner surface of the closing plate portion 21 around the lower end of this fitting portion 22.

In addition, the connection member 30 is coupled to the other end, for example, the lower end of the pipe part 10.

The connecting member 30 has a plate-like connecting plate portion 31 to be connected to the door while finishing corresponding to the cross-sectional shape of one end of the pipe portion 10; A fitting portion 32 protruding from one side of the connecting plate portion 31 so as to be inserted into the inner circumferential surface of one end of the pipe portion 10 by an interference fitting fastening method; On the other side of the connecting plate portion 31 is provided with a plurality of fixing bolt fastening holes 33 formed in the thickness direction.

Finishing material 20 and the connecting member 30 of the present invention described above can be outwardly exposed bolt head or screw hole can maximize the appearance aesthetics, simplify the assembly operation.

In addition, even though the finishing material 20 or the connecting material 30 at one end and the other end of the pipe part 10 is fastened in an interference fit fastening method, the reason why it can be firmly and firmly fixed to the door is described below. This is because the plurality of first fasteners 40 are fastened to the pipe part 10 in a manner.

That is, the first fastener 40 is fixed to the pipe part 10 by a rivet fastening method using a rivet part 50 corresponding to any one of blind rivets and speed rivets.

Here, the first fastener 40 is a conventional engineering plastic, that is, polyimide (PI), polyether ether ketone (PEEK, melting point 336 ℃), amorphous polysulfone (PSF), polyphenylene sulfide excellent in heat resistance (PPS), polyamideimide (PAI), polyester sulfone (PES), polyacrylate (PAR), polyetherimide (PEI, for example, 'ULTEM') injection of any one engineering plastic material selected It is produced by molding.

By this material feature and the shape feature to be described below, when the first fastener 40 is fastened to the pipe part 10 together with the rivet part 50 by a predetermined rivet assembly device (rivet gun). When testing the tensile strength / shear strength, the load may not be deformed or damaged in spite of a load of tensile strength and shear strength of a predetermined size applied to the first fastener 40.

This rivet portion 50 eliminates the need to perform any tapping processing on the mounting hole 14 (see FIG. 4) of the pipe portion 10.

Rivet portion 50 has a material selected from aluminum alloy or iron material, for example, it is preferable to have a tensile strength of 140Kgf ~ 300Kgf or 300Kgf or more, and a shear strength of 100Kgf ~ 250Kgf or 250Kgf or more.

More preferably, the rivet portion 50 has any one material selected from AL10 series to AL60 series, such as AL1100 and AL5052, for example, the tensile strength 115Kgf to 260Kgf in the rivet portion 50 having a predetermined specification and layout. , The test results of shear strength 80Kgf ~ 200Kgf.

As shown in FIG. 4, the first fastener 40 of the present invention recesses an impact groove 41 to be fixed to the elastic step of the second fastener 60 (see FIG. 5 in parallel) from an outer surface thereof. A body 42 formed to be; A rivet ball 43 penetrated in the height direction from the center of the body 42; A plurality of rivet fixing rings 44 protruding from the inner circumferential surface of the rivet hole 43 to have a semicircular O-ring cross-sectional shape in an axial direction; A position fixing edge 45 which protrudes from one end of the body 42 relative to the outside of the rivet hole 43 and has an outer diameter that can be inserted into the mounting hole 14 of the pipe part 10; A rivet seating portion 46 protruding to have a wall shape at the outer side of the body 42; And a concave-convex grip range surface 47 formed between the rivet seating portion 46 and the rivet hole 43.

Here, the one end of the body 42 is integrally extended to the outside of the position fixing edge 45, the wing portion 49 is formed so as to have a spherical surface with a ratio equal to the outer circumference of the pipe portion 10 It is preferable.

Here, since the wing 49 and the plurality of rivet fixing ring 44 increase the contact area with the rivet 50, the first fastener 40 is loosened or rotated in the pipe 10. I can solve it.

When the rivet pin 50, which is indicated as a double-headed double arrow, is fastened by a rivet assembly device such as a rivet gun, the round-shaped dotted line head portion is deformed into a head shape (solid line) spread on both sides, and thus, the first rivet pin 1 The fastener 40 and the pipe part 10 are pressurized with each other.

As shown in FIG. 5, the pipe part 10 having the finishing material 20 is mounted to the door 9 by a connecting member 30 coupled to the other end and its fastening means (such as rivets or screws).

At this time, the plurality of first fasteners 40 fastened to the pipe part 10 by the rivet part 50 are firmly attached to the corresponding second fasteners 60 formed or fixed at the fastening position of the door 9. It is fixed.

As a result, the pipe part 10 is fixed to the door 9 by the connecting member 30 and the plurality of first and second fasteners 40 and 60.

The second fastener 60 is preferably formed in the door 9 by any one of a rivet fastening method, a screw fastening method, and a door integrated injection method.

The material of the second fastener 60 is also any one of the same engineering plastics as the material of the first fastener 40 described above, or a general-purpose synthetic resin plastic such as ordinary PET, PVC, PP, or the like.

As shown in FIG. 6, the pipe portion 10 preferably has a material 17 formed on the outer surface of the base material 15 on the order of tens of microns.

Pipe portion 10 is the base material 15 is preferably made of any one of aluminum alloy, iron, galvanized steel sheet, hot-dip galvanized steel sheet material selected from AL10 series to AL60 series.

The material 17 is anodized and enamel coated using any one aluminum alloy selected from AL10 series to AL60 series (eg AL1050, AL1060, AL1070, AL2011, AL2024, AL3003, AL4032, AL5052, AL6061, AL6063). (Matte, polished), ceramic coated, or teflon coated, the surface treatment is preferably performed. Preferably, the thickness of the material 17 is about 10 to 30 microns.

Anodizing coating is carried out by a conventional anodizing facility which performs surface sandblasting and anodizing, whereby the cladding 17 is subjected to silver white, pale blue, dark by a predetermined anodizing time. Blue, natural titanium, and dark gray.

Enamel coating is performed by a conventional enamel coating equipment, whereby the material 17 has a matte or glossy silver white color as a soft.

Ceramic coating is using any one selected from the inorganic coating ceramic coating material (for example, raw material name BW1170), the receiving step of receiving the base material 15 in the coating device; A degreasing step of degreasing water or oil from the base material 15 using heat treatment and chemicals; After performing the sand blasting step of performing the sand blasting (100 #) to the base material 15, the sand blasted base material 15 is heated to 180 ° C ~ 200 ° C in the selected state on the base material 15 It is manufactured by a manufacturing method including a spray heat treatment step of spraying the inorganic coating ceramic coating material to have a thickness of about 10 to 30 microns.

The pipe part 10 by such a ceramic coating has a hard material 17 which is about 2 to 3 times stronger than the fluorine resin coating in its strength and hardness. Has the property 'E'.

Teflon coating using any one selected from the Teflon coating material (for example, the raw material name Dupont 420-119), and receiving the base material 15 into the coating device; Washing operation (Tec) and removing the layer (temperature: 400 ℃) step; Sandblasting (100 #) step in sequence, and after the sintering step, by spraying the selected Teflon coating material on the sintered base material 15 to perform a spray step to have a thickness of about 10 to 30 microns, Then it is manufactured by a manufacturing method including a heat treatment step of heating to 360 ℃ ~ 380 ℃.

Pipe part 10 by the Teflon coating is a fluorine resin, foreign matter does not adhere to the base and chemicals, and also has excellent corrosion and hardness 'E' as well as hardness and strength.

As described above, in the present invention configured as described above, a pipe part manufactured by a welding pipe type or an extrusion type manufacturing method manufactured by high frequency induction heating welding as a material selected from AL10 series to AL60 series, and high rigidity and high temperature by engineering plastics There is an effect of providing an electronic door handlebar fastening structure having a durable first fastener.

In addition, according to the electronic door handle bar fastening structure of the present invention, the first fastener is semi-permanently fastened to the pipe part by using the rivet fastening method, and the fastener is fastened to the pipe part by the fastening method. Innovative minimization of assembly operations related to the design can maximize productivity and mass production, innovative reduction of assembly-related manufacturing steps, and high quality electronics with superior tightening strength compared to screw assembly products. It is effective to provide a product door handlebar fastening structure.

In addition, the electronic door handle bar fastening structure of the present invention has the effect of enabling the assembly and manufacture of high quality handle bar with excellent corrosion resistance and beautiful surface gloss while maintaining high rigidity as disclosed various materials for the pipe part.

In addition, the electronic door handle bar fastening structure of the present invention according to the conventional injection molding according to the manufacturing method for forming a material by anodizing coating, enamel coating (matte, glossy), ceramic coating, Teflon coating on the base material of the pipe portion It is lighter in weight, yet more rigid and durable than deformation type handlebar products, has no deformation above a certain temperature, and has relatively low corrosion resistance, abrasion resistance, and chemical resistance, or superior product life, quality and aesthetics, price and performance. There is an advantage in having a technological economic advantage.

In addition, the electronic door handle bar fastening structure of the present invention has the effect of realizing a lightweight design with excellent rigidity and relatively lighter than the weight of the shaft portion by the conventional injection molding.

Claims (7)

A pipe portion having a hollow pipe shape; Finishing material is coupled to the one end of the pipe by the interference fitting method; In the electronic door handlebar fastening structure having a connecting material coupled to the other end of the pipe portion by a fastening method, A first fastener seated in the mounting hole of the pipe part; And a rivet part fastened through the rivet hole and the mounting hole of the first fastener to mutually press the first fastener to the pipe part. The pipe door handle bar fastening structure, characterized in that the pipe is made of any one material selected from a plurality of materials. The method of claim 1, The material of the pipe part is an aluminum coated pipe, the outer surface of the base material made of any one of iron, galvanized steel sheet, hot-dip galvanized steel sheet is coated with any one aluminum alloy material selected from AL10 series to AL60 series. And, the door handle bar fastening structure of the electronics, characterized in that the welded part is sprayed on the high-frequency induction heating welded portion when the tubing. The method of claim 1, The material of the pipe part is an aluminum welded pipe formed by forming an aluminum alloy material selected from AL10 series to AL60 series by high frequency induction heating welding, and anodizing coating, enamel coating, ceramic coating, and Teflon on the surface of the base material. An electronic door handle bar fastening structure, characterized in that to form a cover material by any one of the surface treatment selected from the coating. The method of claim 1, The material of the pipe part is an electronic door handle bar fastening structure, characterized in that the iron pipe is made by plating after painting. The method of claim 1, The material of the pipe part may include a base material molded into a pipe shape using any one material selected from engineering plastics having high temperature resistance, and a material formed by ceramic coating on the surface of the base material. Handlebar fastening structure. The method of claim 1, The first fastener is polyimide (PI), polyether ether ketone (PEEK), polysulfone (PSF), polyphenylene sulfide (PPS), polyamideimide (PAI), polyester sulfone (PES), polyacrylate (PAR), polyetherimide (PEI) injection molding any one of the engineering plastic material, A body formed with an impact groove recessed at an outer surface to be fixed to the elastic step of the second fastener formed at the door side; A rivet hole penetrated in the height direction from the center of the body; A plurality of rivet fixing ring portions protruding from the inner circumferential surface of the rivet hole to have a semicircular O-ring cross-sectional shape; A position fixing edge protruding from one end of the body with respect to the outside of the rivet hole and having an outer diameter that can be inserted into a mounting hole of the pipe part; A rivet seating portion protruding to have a wall shape at the outer side of the body; An electronic door handle bar fastening structure, characterized in that it has a shape structure including a concave-convex grip range surface formed between the rivet hole from the rivet mounting portion. The method of claim 1, The pipe part having the finishing material is door-mounted by the connecting member, and a plurality of first fasteners fastened to the pipe part by the rivet part are fixed to the corresponding second fasteners formed at the fastening position of the door. Electronic product door handle bar fastening structure, characterized in that.

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