KR102245533B1 - Vehicle rim and its manufacturing method - Google Patents

Abstract

The present invention relates to a rim for a vehicle and a method for manufacturing the same. More particularly, the present invention relates to a rim for a vehicle capable of improving bonding strength with a tire and a method for manufacturing the same. According to the present invention, the rim for a vehicle comprises: a rim part which is annular and to which a tire is coupled; and a protrusion part provided to protrude outward from an outer circumferential surface of the rim part.

Description

Vehicle rim and its manufacturing method {VEHICLE RIM AND ITS MANUFACTURING METHOD}

The present invention relates to a rim for a vehicle and a method for manufacturing the same, and more particularly, to a rim for a vehicle capable of improving the bonding force with a tire and a method for manufacturing the same.

A rim is a ring-shaped part that forms the rim of a wheel in transportation means such as a vehicle, and is manufactured as a wheel by fixing a tire on the outer circumferential surface.

On the other hand, the prior art Patent Publication No. 10-2014-0136368 (hereinafter referred to as the prior art) relates to a vehicle wheel, and more particularly, in the vehicle wheel, the wheel body; And a plurality of rim blades coupled to at least one side surface of the wheel body, wherein each of the plurality of rim blades includes an airflow guide section and an airflow assisting section. Including, the air flow guide unit and the air flow auxiliary unit are arranged on the rim blade in a front series and a rear series, thereby including an air flow guide unit and an air flow auxiliary unit on each of the rim blades. The airflow guide part is located on the side of the rim blade facing the forward direction of rotation of the wheel, and the airflow assistant part is located on the side of the rim blade opposite to the forward direction of rotation of the wheel to increase airflow. By reducing the air resistance, it generates an auxiliary propulsion force that adaptively induces the rotation of the wheel, thereby assisting the movement of the wheel, reducing fuel consumption, and stabilizing the movement of the wheel. It is possible to improve the problem of the wheel of the vehicle, reduce the noise produced by the wheel during movement, and reduce the fuel consumption of the vehicle.

However, this prior art has a problem in that it does not include a configuration capable of improving the bonding force with the tire.

The present invention has been conceived to solve the above problems, and an object of the present invention is to provide a rim for a transportation means capable of improving a bonding force with a tire and a method of manufacturing the same.

The present invention for the purpose of solving the above problems has the following configurations and features.

It has an annular shape and includes a rim to which the tire is coupled, and a protrusion provided to protrude outward from an outer circumferential surface of the rim.

In addition, the protrusion is a first protrusion formed along the rotational direction of the rim, a second protrusion formed along a direction parallel to the rotational axis of the rim, and a direction crossing the longitudinal direction of each of the first protrusion and the second protrusion. It may include at least one of a third protrusion formed along the line and a fourth protrusion curved by a predetermined curvature.

In the method of manufacturing a rim for a vehicle, the step of injecting molten metal into a mold having a recessed groove corresponding to the protrusion on a surface (S10), and cooling the molten metal injected into the mold to make the rim for the vehicle And a step of producing (S20) and separating the form and the rim for the vehicle (S30).

The present invention having the above configuration and characteristics has the effect of improving the bonding force with the tire mounted on the rim by including a protrusion provided to protrude outward from the rim.

In addition, the present invention relates to a first protrusion in which the protrusion is formed along the rotational direction of the rim, a second protrusion formed along a direction parallel to the rotational axis of the rim, and intersecting the length direction of each of the first protrusion and the second protrusion. By including at least one of the third protrusion formed along the direction and the fourth protrusion curved by a predetermined curvature, separation from the tire is suppressed and the rotational force of the rim rotating by the rotation shaft can be effectively transmitted to the tire.

1 is a perspective view of a rim for a vehicle according to an embodiment of the present invention.
2 is a plan view of a vehicle rim.
3 is a view for explaining a rim for a transportation means provided with a protrusion.
4 is a view for explaining a state in which a tire is coupled to a rim for a vehicle.
5 is a schematic view for explaining a method of manufacturing a rim for a vehicle according to an embodiment of the present invention.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in this specification are only used to describe specific embodiments (sun, 態樣, aspect) (or embodiments), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as ~comprise~ or ~consist~ are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of the presence or addition.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

The ~1~, ~2~ and the like described in the present specification are only referred to to distinguish different constituent elements, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention It may not match.

Throughout this specification, when a part is said to be "connected" with another part, it is not only "directly connected" or "connected", but also "indirectly connected" with another element interposed therebetween. Includes.

1 is a perspective view of a rim for a vehicle according to an embodiment of the present invention, Figure 2 is a plan view of a rim for a vehicle, Figure 3 is a view for explaining a rim for a vehicle provided with a protrusion, Figure 4 Is a view for explaining a state in which the tire is coupled to the rim for the vehicle.

The rim R for a vehicle according to an embodiment of the present invention is to form a wheel by mounting a tire 3, and the wheel may be used in a vehicle such as a forklift or a vehicle such as a bicycle. Hereinafter, for convenience of description, it will be referred to as'this device'.

Referring to Figures 1 to 4, the device (the rim for a vehicle according to an embodiment of the present invention (R)) includes a rim portion (1) and a protrusion (2).

The rim 1 is annular, and the tire 3 is joined. The rim 1 is a ring-shaped (annular) part that forms the rim of the wheel and is made of a metal material, and is connected to a hub that is axially coupled to a shaft member 4 serving as a rotating shaft through a stoke and the like and rotated. This is common in the relevant field, and a more detailed description will be omitted.

The protrusion 2 is provided to protrude outward from the outer peripheral surface 11 of the rim 1. Here, the outer circumferential surface 11 may be a surface to which the tire 3 is in contact with each other.

The inner side may mean a direction from the outer circumferential surface 11 toward the rotation axis, and the outer side may mean a radial direction from the rotation axis, which will be applied in the same manner in the following description.

As described above, the protrusion 2 protrudes outward from the outer circumferential surface 11 of the rim 1, and may protrude from the outer circumferential surface 11 along a direction corresponding to a radial direction from the rotation axis.

As described above, the device includes the protrusion 2, thereby improving the coupling force with the tire 3, for example, suppressing disengagement (separation) of the tire 3 and the rim 1, and When) is rotated by the shaft member 4 described above, the rotational force can be sufficiently transmitted to the tire 3.

Referring to Figs. 1 to 4, more specifically describing the protrusion 2, the protrusion 2 includes a first protrusion 21 formed along the rotation direction of the rim 1, and a rotation axis of the rim 1 The second protrusion 22, the first protrusion 21, and the second protrusion 22 formed along a parallel direction, a third protrusion 23 formed along a direction crossing the longitudinal direction, and a curvature by a predetermined curvature It may include at least one of the fourth protrusion 24.

Here, the longitudinal direction of the rotation axis may be an AA' direction (up-down direction based on FIG. 2) based on FIG. 1, and the rotation direction of the rim 1 is clockwise or clockwise based on the AA′ direction. It means a counterclockwise direction and may mean a left and right direction based on FIG. 2.

In addition, the direction parallel to the axis of rotation means a direction parallel to the direction AA', and the length direction of the third protrusion 23 crosses all of the longitudinal directions of the first protrusion 21 and the second protrusion 22. It may be formed along a direction oblique to the direction of rotation of the rim 1 and a direction parallel to the axis of rotation.

In addition, being bent by a predetermined curvature may mean that it is curved by a predetermined curvature when viewed from a plane (see FIG. 2 ).

The tire (3) coupled to the rim (1) moves along the longitudinal direction (AA' direction) of the axis of rotation and is coupled to the rim (1) or disengaged (separated), and the protrusion (2) is In the case of including the first protrusion 21 formed along the rotational direction, the tire 3 coupled to the rim 1 is prevented from moving along the longitudinal direction (AA′ direction) of the rotational axis to prevent the rim 1 and the tire. (3) can improve the bonding force.

In addition, as described above, the rim portion 1 is connected to the shaft member 4 and rotates around the shaft member 4 as a central axis, and the tire 3 is grounded to the ground and friction occurs with the ground, and the rim portion 1 Even if is rotated, the tire 3 may not rotate, and in this case, the rotational force of the shaft member 4 is not sufficiently transmitted to the tire 3, and thus energy for rotating the shaft member 4 may be wasted.

At this time, when the protrusion 2 includes a second protrusion 22 formed parallel to the longitudinal direction (AA′ direction) of the rotation axis, when the second protrusion 22 provided on the rim 1 is viewed from the top ( 2) There is an advantage that the rotational force of the rim 1 can be transmitted to the tire 3 more effectively since it is formed in a direction orthogonal to the rotational direction of the rim 1.

When the protrusion 2 includes the third protrusion 23, even when the protrusion 2 does not include the first protrusion 21 and the second protrusion 22, the third protrusion 23 is a rim ( Since it is formed at an angle with respect to the direction of rotation of 1) and the longitudinal direction of the axis of rotation, it is possible to suppress the separation of the rim 1 and the tire 3 and at the same time effectively transmit the rotational force of the rim 1 to the tire 3 There is this.

When the protrusion 2 includes the fourth protrusion 24, even when the protrusion 2 does not include the first protrusion 21 and the second protrusion 22, the fourth protrusion 24 is When viewed (see FIG. 2 ), since it is curved by a predetermined curvature, there is an advantage that it is possible to effectively transmit the rotational force of the rim 1 to the tire 3 while suppressing the separation of the rim 1 and the tire 3.

Each of the protrusions (the first protrusion 21 to the fourth protrusion 24) of the protrusion 2 may be formed by connecting at least two or more, and thus, as shown in FIG. 2, when the device is viewed in plan view, V Now, of course, it can have various shapes such as L-shaped and S-shaped.

In addition, an adhesive may be applied to the outer circumferential surface 11 of the rim 1 to improve the bonding force with the tire 3. In addition, the tire 3 may include a groove portion formed to be recessed outward from an inner peripheral surface in contact with the outer peripheral surface 11 of the rim 1 so as to correspond to the protrusion 2.

5 is a schematic view for explaining a method of manufacturing a rim for a vehicle according to an embodiment of the present invention.

On the other hand, hereinafter, a method of manufacturing a rim for a vehicle according to an embodiment of the present invention (hereinafter referred to as'this method') will be described. However, since this method is a method for manufacturing the above-described device, and includes the same or corresponding technical features as the device, the same reference numerals are used for configurations that are the same or similar to those of the previous salpin configuration, and duplicate descriptions It will be simplified or omitted.

Referring to FIGS. 1 to 5, the method (a method of manufacturing a rim for a vehicle according to an embodiment of the present invention) includes a molten metal injection step, a cooling step, and a separation step.

The molten metal injection step is a step (S10) of injecting the molten metal 6 into the mold 5 in which the recessed groove 51 which is recessed to correspond to the protrusion 2 is formed on the surface (S10).

The molten metal 6 is the raw material of the apparatus, and the mold 5 is for manufacturing the apparatus (casting) by cooling the molten metal 6, and may be a sand mold or a mold. The surface is the surface to which the molten metal 6 comes into contact.

As described above, since the protrusion 2 is provided to protrude outward from the outer circumferential surface 11 of the rim 1, the portion forming the outer circumferential surface 11 of the surface of the mold 5 is a recessed recess 51 Can be formed. The mold 5 is commonly used in the relevant field, and a more detailed description thereof will be omitted.

The cooling step is a step (S20) of cooling the molten metal (6) injected into the mold (5) to produce a rim (R) for a vehicle.

In general, the molten metal 6 has a melting point higher than the melting point of the mold 5 (sand mold, mold, etc.), so that the molten metal 6 injected into the mold 5 exchanges heat with the mold 5 to cool and solidify. As a result, a cast rim (R) for a vehicle is manufactured.

The separating step is a step (S30) of separating the mold (5) and the rim (R) for the vehicle. In general, the mold 5 may be broken or separated to be separated from the mold 5, and generally, a release agent is applied to the surface of the mold 5 to be easily separated from the device, which is a solidified casting.

The present apparatus manufactured by this method is annular and includes a rim 1 to which the tire 3 is coupled, and a protrusion 2 protruding outward from the outer peripheral surface 11 of the rim 1.

The protrusion 2 includes a first protrusion 21 formed along the rotational direction of the rim 1, a second protrusion 22 formed along a direction parallel to the rotational axis of the rim 1, and the first protrusion. It may include at least one of a third protrusion 23 formed along a direction crossing the length direction of each of the second protrusions 21 and the second protrusion 22, and a fourth protrusion 24 curved by a predetermined curvature.

On the other hand, it was said that the rim part (1) may be a metallic material as described above, but as it is used for a long time, bacteria may proliferate, and in this case, the rim part (1) may cause microbial corrosion. Since there is a species that is, there is a need to suppress the proliferation of bacteria on the outer surface of the rim 1.

In addition, when bacteria in the rim 1 are inserted into the rim 1 and proliferate in the combined tire 3, the rubber tire 3 may be decomposed.

In addition, it is not hygienic when bacteria are transferred to people, etc. during the process of replacing the tire 3 fitted in the rim 1 or during the maintenance of the vehicle.

Accordingly, the rim 1 may include a protective agent provided on the outer surface as a means for solving the above problems.

The protective agent includes 100 parts by weight of a disinfectant including an inorganic compound and a tyric oil, and the inorganic compound is commonly used as a disinfectant, and may be, for example, copper sulfate, zinc oxide, boric acid, and the like. Tea tree oil is an essential oil extracted from tea tree leaves and twigs and works effectively against bacteria and fungi. Tea tree oil can act as a solvent for a protective agent.

The protective agent is 4-dicyanmethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM), 6-propionyl-2-(dimethylamino)naphthalene (PRODAN) and N-methyl- It may contain 20 parts by weight of a bacterial reaction agent including 2-nitroaniline (NM2NA).

The above-described mycobacterial reactant maintains the solvent in the first color (e.g., blue) while being dissolved in the solvent. Thereafter, when the fungicide reactants come into contact with bacteria, microorganisms, etc., the solvent of the first color is changed to a second color (eg, colorless) within about 10 seconds.

The fungicide was used for the purpose of allowing the user to recognize the part of the rim (1) where the bacteria are located through the color change of the solvent, and when the fungicide is less than 20 parts by weight, the fungicide is in contact with the bacteria. The color change is not clear, and it is not economical when the bacteriostatic agent exceeds 20 parts by weight.

Bacterial reaction agent is 4-dicyanmethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) 10 parts by weight of 6-propionyl-2-(dimethylamino)naphthalene (PRODAN) It is preferable that 5 parts by weight and 5 parts by weight of N-methyl-2-nitroaniline (NM2NA) are included.

On the other hand, when a small amount of the solvent is volatilized, the color change time of the solvent takes longer even if the above-described bacteria reactant is in contact with the bacteria, the difference in the color change of the solvent is not large, and the sensitivity of the bacteria reaction agent may be lowered. .

The dry maintenance agent is to suppress the occurrence of the above-described problem of the fungicide, and maintains the difference between the sensitivity and color contrast of the fungicide, even when a small amount of solvent volatilizes while the fungicide is in contact with bacteria. , Can maintain the color change time of the solvent.

When the dry-retaining agent is less than 1 part by weight, there is a problem in that the performance of the bacteriostatic agent cannot be sufficiently maintained when a small amount of the solvent is evaporated.

When the disinfectant reacts with impurities such as sodium chlorate, chlorine, and sodium sulfate, the color may change even without contact with the bacteria.

The selection enhancer is to overcome the problem of the above-described microbial reaction agent, and 2,2', 5,5'-tetramethylbenzidin changes to red when it comes into contact with chlorine or sodium chlorate in a colorless state. And iodine reacts with chlorate and turns black.

For example, the selection enhancer may include 0.5 parts by weight of a mixture of 2,2 ′, 5,5 ′-tetramethylbenzidin and 0.5 parts by weight of a starch and iodine mixture.

When the mixture exceeds 0.5 parts by weight, detection of chlorine may be difficult when the selection enhancer reacts with chlorine (or sodium chlorate) and chlorate at the same time, and when the mixture is less than 0.5 parts by weight, the selection enhancer is simultaneously with chlorine and chlorate. When reacted, it may be difficult to detect chlorate.

Viscosity modifiers were used to improve the viscosity of the protective agent over time. Viscosity modifiers are excluded from the mixing process of each component (components other than the viscosity modifier) of the protectant, for example, and each component (components excluding the viscosity modifier) included in the protectant by keeping the viscosity of the protectant low Make sure to mix well.

After mixing of the protective agent, when the viscosity modifier is added and a shear force is generated in the viscosity modifier, the viscosity increases over time, and the shear force is in contact with the nozzle of the spraying device or contact with the rim (1). It may be caused by such as.

In addition, a viscosity modifier may be added while each component of the protective agent is mixed in the process, and the viscosity modifier increases with the passage of time. This makes mixing easier by keeping the viscosity of the protective agent low at the beginning of the mixing process. And, after the mixing process, the viscosity is improved so that the protective agent can be more easily applied to the rim 1.

In this way, the viscosity modifier increases the viscosity of the protective agent over time, so that the protective agent does not easily flow down while being applied to the rim portion 1, and thus the function of the protective agent can be maintained for a long time.

In particular, as the viscosity of the protective agent increases due to the viscosity modifier, the contact force with the rim part 1 is improved, so that the fungicide contained in the protective agent can also easily contact the bacteria for a long time. The proliferated part can be identified more easily.

The part of the rim part 1 where the color is changed by the bacteria reaction agent is recognized as a place where there are a lot of bacteria, and afterwards, a protective agent is further sprayed on the part where it is determined that there are many bacteria, thereby effectively sterilizing.

The present invention described above with reference to the accompanying drawings can be variously modified and changed by a person skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

Transport rim: R
Limb: 1 Outer circumference: 11
Protrusion: 2 first protrusion: 21
2nd protrusion: 22 3rd protrusion: 23
4th protrusion: 24
Tire: 3 Shaft member: 4
Template: 5 Indentations: 51
Molten metal: 6

Claims (4)

It is annular, and the rim portion to which the tire is coupled; And
It includes a protrusion provided to protrude outward from the outer peripheral surface of the rim,
The protrusion includes at least one of a first protrusion formed along a rotational direction of the rim, a second protrusion formed along a direction parallel to the rotational axis of the rim, and a fourth protrusion curved by a predetermined curvature,
And a third protrusion formed along a direction crossing a longitudinal direction of each of the first protrusion and the second protrusion,
The rim portion includes a protective agent provided on the outer surface,
The protective agent includes 100 parts by weight of a fungicide containing an inorganic compound and Tyrli oil,
The protective agent is 4-dicyanmethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM), 6-propionyl-2-(dimethylamino)naphthalene (PRODAN) and N-methyl 20 parts by weight of a bacterial reaction agent containing -2-nitroaniline (NM2NA),
2,2', 5,5'- Tetramethylbenzidin 0.5 parts by weight, 1 part by weight of a selection enhancer comprising 0.5 parts by weight of a starch and iodine mixture,
Rim for transportation, characterized in that it contains 10 parts by weight of a viscosity modifier including highly concentrated starch and gypsum paste. delete delete In the method for manufacturing a rim for a vehicle according to claim 1,
Injecting a molten metal into a mold having a recessed groove corresponding to the protrusion on the surface (S10);
Cooling the molten metal injected into the mold to produce a rim for the transportation means (S20); And
And separating the form and the rim for the vehicle (S30).

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