JP6057832B2 - Tire cleaning method and tire cleaning apparatus for cleaning tire surface - Google Patents

Description

  The present invention relates to a tire cleaning method and a tire cleaning apparatus for cleaning a tire surface.

  A tire may be stored in a warehouse or the like for a long period of time after being manufactured at a factory until it is shipped, further until it is attached to a car at an automobile assembly factory or a tire dealer.

  Tires contain various chemicals such as waxes and anti-aging agents in addition to rubber components and carbon black as raw materials in order to ensure proper tire properties. The surface of the tire may become dirty due to blooming of chemicals such as wax and anti-aging agents on the surface. In addition to the deposition of these chemicals, dirt such as dust and mud may adhere to the tire surface depending on the storage conditions.

  Conventionally, before attaching the tire to the car, chemical dirt etc. was dissolved with detergent, gasoline, organic solvent, etc. and wiped with cloth etc., but these are manual work only, so the work efficiency is poor It was expensive. Furthermore, the use of detergents, gasoline, and organic solvents has caused environmental problems.

  As an apparatus for cleaning a tire to which mud such as a construction vehicle is attached, in Patent Document 1 below, a vehicle support rib and a bearing are provided in a water tank, and one end of an arm having a pivot pin in the central portion is a tire stepping portion. A tire cleaning device is described in which a cleaning function plate having a handle function part on the opposite side of the fulcrum rotates in a seesaw shape around a support shaft pin supported by the bearing.

JP2011-88459A

  However, the above prior art has the following problems. That is, in the technique described in Patent Document 1, the purpose is to remove mud by a simple method when mud adheres to construction vehicle tires and the like. It was difficult.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a tire cleaning method and a tire cleaning apparatus capable of easily and reliably removing dirt on a tire surface.

  That is, the present invention is a tire cleaning method for cleaning a tire surface, wherein the tire surface is rotated at 30 to 300 rpm, and low pressure water vapor of 1.0 MPa or less is sprayed on the tire surface. , Regarding.

  In the tire cleaning method, low pressure steam of 1.0 MPa or less is sprayed on the tire surface. Due to the latent heat of the water vapor, oil components such as wax and anti-aging agent deposited and adhered to the tire surface melt and fluidity is generated. Further, when the water vapor is released into the atmosphere, the water vapor is changed to high-temperature water, and dust and mud adhering to the tire surface are released from the tire surface. In the tire cleaning method, when the low pressure water vapor of 1.0 MPa or less is sprayed on the tire surface, the tire is rotated at 30 to 300 rpm, so that oil melted on the tire surface and free dust and mud are caused by centrifugal force. It is efficiently removed from the tire surface.

The tire cleaning method is, for example, the following tire cleaning device;
A tire cleaning apparatus for cleaning a tire surface, comprising: a rotation support unit that supports the tire so as to be rotationally driven at 30 to 300 rpm; and a vapor injection unit that is capable of spraying low-pressure water vapor of 1.0 MPa or less onto the tire surface. It can carry out by the tire washing | cleaning apparatus characterized by providing.

The conceptual diagram which shows the structure of the tire cleaning apparatus which concerns on this invention

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a conceptual diagram showing a configuration of a tire cleaning device according to the present invention. This tire cleaning device is particularly effective for cleaning a molded new tire for a passenger car or heavy load. These tires may have any size.

  A tire cleaning device 10 for cleaning a tire surface includes a rotation support unit 2 that supports the tire 1 so as to be rotationally driven at 30 to 300 rpm. In the present invention, when the tire is washed, if the rotation speed of the tire is 30 rpm or less, a centrifugal force sufficient to remove the melted oil, loose dust and mud on the tire surface does not work. On the other hand, if the rotational speed of the tire exceeds 300 rpm, in addition to safety problems, low-pressure steam does not sufficiently reach the tire surface, and the dirt removal efficiency on the tire surface decreases. When considering the removal efficiency of the dirt on the tire surface, the rotation support portion 2 is preferably capable of rotating the tire 1 at 30 to 300 rpm, and more preferably capable of rotating at 50 to 200 rpm.

  In the example shown in FIG. 1, the example in which the rotation support portion 2 is configured by two rotatable rotating rods is shown. However, the present invention is not limited to this, and for example, a tire is necessary. Accordingly, a mechanism may be used in which the rim is assembled and mounted on a rotational drive shaft that can rotate around the tire shaft and rotated.

  The tire cleaning device 10 further includes a steam injection unit 3 that can spray low-pressure steam of 1.0 MPa or less onto the tire surface. The steam injection unit 3 may be provided at one or a plurality of locations toward the tire tread surface, or may be provided at one or a plurality of locations toward the tire side surface. In the present invention, the steam injection pressure of the steam injection unit 3 is low, specifically 1.0 MPa or less. If the injection pressure of the steam exceeds 1.0 MPa, the temperature of the injected water vapor will rise, and if such high-temperature water vapor is injected onto the surface of the tire, there is a risk of rubber deterioration on the tire surface. . In order to prevent rubber deterioration on the tire surface, it is more preferable that the low-pressure steam injected from the steam injection unit 3 is 0.5 MPa or less. On the other hand, when the low-pressure water vapor injected from the steam injection unit 3 is less than 0.2 MPa, the dirt removal efficiency may be lowered when the tire surface is particularly dirty. Therefore, it is preferable that the low-pressure steam injected from the steam injection unit 3 is 0.2 MPa or more.

  The said tire cleaning apparatus can be used for implementation of the tire cleaning method which concerns on this invention. In the tire cleaning method according to the present invention, low-pressure steam of 1.0 MPa or less is sprayed on the tire surface while rotating the tire at 30 to 300 rpm. In consideration of the removal efficiency of the dirt on the tire surface, the rotational speed of the tire is preferably 30 to 300 rpm, more preferably 50 to 200 rpm. Moreover, in order to prevent rubber deterioration on the tire surface, it is preferable to spray low pressure steam of 1.0 MPa or less on the tire surface. In order to enhance the removal efficiency of dirt, it is preferable to spray low pressure steam of 0.2 MPa or more on the tire surface.

  Hereinafter, the present invention will be described in more detail with reference to examples.

Example 1
A new passenger car tire (size 195 / 65R15) was used as a cleaning tire. Since such tires have been in production for a long period of time, they were contaminated by depositing wax and oils that appear to be anti-aging agents on the tire treads. The tire was cleaned by spraying 0.3 MPa of low-pressure water vapor onto the tire surface while rotating the tire at 100 rpm using the tire cleaning apparatus shown in FIG. After washing, the dirt on the tire tread was completely removed.

Example 2
As the cleaning tire, a tire having the same level of dirt as Example 1 was used on the tire surface. The tire was cleaned in the same manner as in Example 1 except that the rotation speed during tire cleaning was 60 rpm and the pressure of the low-pressure steam sprayed on the tire surface was changed to 0.4 MPa. After washing, the dirt on the tire tread was completely removed.

DESCRIPTION OF SYMBOLS 1 Tire 2 Rotation support part 3 Water injection part 10 Tire washing apparatus

Claims (2)

A tire cleaning method for cleaning a tire surface,
A method for cleaning a tire, characterized by spraying low pressure water vapor of 1.0 MPa or less onto the tire surface while rotating the tire at 30 to 300 rpm. A tire cleaning device for cleaning a tire surface,
A rotation support unit that supports the tire so as to be rotationally driven at 30 to 300 rpm;
A tire cleaning apparatus comprising: a steam injection unit capable of spraying low pressure steam of 1.0 MPa or less onto a tire surface.

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