JPH08257460A - Tire bead lubricator - Google Patents

Abstract

PURPOSE: To uniformly execute lubricant application on upper and lower bead parts of a tire by providing the above device with a turning means for turning the tire around its axial center in a positioning position of a transporting means and coating applying means for applying the lubricant on the bead parts of the turning tire. CONSTITUTION: Coating rollers constitutes positioning means 3 for preventing the movement in a transporting direction by engaging with the upper and lower beads 5 of the tire 1 and the coating mans 6 for applying the lubricant by coming into contact with the upper and lower beads 5. Namely, the coating rollers are inserted into the central hole of the tire 1 on the transporting means 2, by which the rollers are engaged with the upper and lower beads 5 and the transportation is stopped. At this time, the fourth rollers 11 are lowered below the transportation plane and the rotating force of the second rollers 9 on the right side is transmitted to the tire 1 so that the tire 1 tends to turn around its axial center. This turning is permitted as the third and fifth rollers 10, 12 consist of freely loosely rotatable rollers. The uniform application of the lubricant on the upper and lower beads 5 of the tire 1 is thus made possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire bead bridging device for applying a lubricant to a bead portion of a tire of an automobile or the like.

[0002]

2. Description of the Related Art As a tire bead bridging device of this type, for example, one described in U.S. Pat. No. 4,638,756 is known. This conventional one has a carrying means for placing the tire so that the axis of the tire is in the vertical axis posture and carrying the tire in a predetermined direction, a positioning means for positioning the tire at a predetermined position of the carrying means, It has a rotating means for rotating the tire around its axis at the positioning position, and a vertically movable application roller for applying a lubricant to the bead portion of the rotating tire. Further, the conveying means is composed of a roller conveyor having a driving roller, and the conveying means at the tire mounting position positioned by the positioning means is provided with an idle roller which can be raised or lowered on either the left or right side thereof. Was there.

According to this conventional apparatus, the tire carried by the roller conveyor is stopped at a predetermined position by the positioning means. Then, the idler roller rises and lifts one side of the tire in the left-right direction, so that the unlifted opposite side comes into contact with the drive roller, and the tire rotates at its stop position. Then, the lubricant is applied to the bead portion of the rotating tire by an application roller.

That is, in this prior art, the tire is held in an inclined posture and the lubricant is applied to the bead portion thereof. On the other hand, as a method for holding a tire in a horizontal posture and applying a lubricant to the bead portion thereof, for example, the actual open sho 62-
There is one described in Japanese Patent No. 27753. In this conventional one, the driving of the conveyor is stopped to stop the tire being conveyed at a predetermined position, and the coating means waiting above the stop position is lowered to the hole of the tire, and the coating is performed. The lubricant is applied to the tire bead portion by rotating the means along the inner peripheral surface of the hole.

[0005]

In the case where the tire is applied while being held in a tilted posture, it is difficult to apply the lubricant uniformly because the tire is tilted, and since the position of the applying roller is constant, There is a problem that the roller is heavily worn. On the other hand, in the case of applying while maintaining the horizontal posture, there is a problem that since the applying means is rotated along the tire bead portion, the rotating device becomes complicated and the cost becomes high. Further, it is difficult to match the center of the stopped tire with the center of rotation of the coating device, and there is a problem that uniform coating becomes difficult when the center is misaligned.

Therefore, an object of the present invention is to provide a tire bead bridging device which solves the above problems by holding the tire in a horizontal posture and rotating the tire.

[0007]

In order to achieve the above object, the present invention has taken the following means. That is, a carrying means for placing the tire so that the axis of the tire is in the vertical axis posture and carrying it in a predetermined direction, a positioning means for positioning the tire at a predetermined position of the carrying means, and a positioning means for positioning the tire at the positioning position. A first feature of the present invention is a tire bead bridging device having a rotating means for rotating a tire about its axis and an applying means for applying a lubricant to a bead portion of the rotating tire. However, the rotating means is composed of a roller in a horizontal axis posture on which the tire is placed, and the roller is provided separately on the left and right sides through the axis of the tire,
Moreover, the left and right rollers are rotatable independently of each other at the same horizontal level.

Of the left and right rollers, one roller may be a drive roller and the other roller may be an idle roller, or the left and right rollers may be rotationally driven in opposite directions. The application means has an application roller having a vertical axis posture for applying the lubricant to the bead portion of the tire, and the application roller is arranged so as to be vertically movable between the left and right rollers.

The positioning means has a stopper that is capable of retracting into and out of the conveying path of the conveying means and engageably and disengageably engages with the tire. This stopper can be composed of the coating roller, or can be composed of a pair of left and right idler rollers having a vertical axis posture. Further, a feature of the second aspect of the present invention is that the positioning means includes a pair of left and right drive rollers having a vertical axis posture that is movable in and out of a transportation path of the transportation means to engage with and disengage from a tire. The rotating means is constituted by the driving roller, and the conveying means at the tire mounting position positioned by the positioning means has a roller in a horizontal axis position for mounting the tire, The rollers are rotatable independently of each other at their left and right positions via the axis of the tire.

[0010]

According to the present invention, the tire is placed by the conveying means such that the axis of the tire is in the vertical axis posture and conveyed in the predetermined direction. The positioning means positions the tire at a predetermined position of the conveying means. The rotation means rotates the tire around its axis at the positioning position. Then, the lubricant is applied to the bead portion of the rotating tire by the applying means.

In such a tire bead bridging device, according to the first aspect of the present invention, the rotating means is composed of a roller having a horizontal axis posture on which the tire is placed, and the roller is provided through the axis of the tire. Since the left and right rollers are separately provided and the left and right rollers are independently rotatable at the same horizontal level,
If one roller is a driving roller and the other roller is an idler roller, the tires mounted on these left and right rollers try to move in the carrying direction by one driving roller, but this movement is As prevented by the positioning means, the tire tends to rotate about its axis. At this time, since the other roller is an idle roller,
Allows rotation of the tire around its axis.

That is, the tire can be rotated while maintaining the vertical axis posture, which is the conveying posture, and it is not necessary to change the posture to the inclined posture as in the conventional case. Further, even if the rotating means is configured such that the left and right rollers are rotationally driven in mutually opposite directions, the tire can be rotated while maintaining the vertical axis posture similarly to the above. The application means is configured to have an application roller having a vertical axis posture for applying a lubricant to the bead portion of the tire, and when the application roller is arranged so as to be vertically movable between the left and right rollers of the conveying means, When is delivered to a predetermined position, if the application roller is raised or lowered and inserted into the center hole of the tire,
The application roller stops the transportation of the tire.

That is, the coating roller constitutes a positioning means. However, the application roller comes into contact with the bead portion of the tire to prevent movement in the conveying direction, and the application roller applies the lubricant to the bead portion of the tire rotated by the rotating means. Since the tire rotates while maintaining the vertical axis posture, the contact between the application roller and the bead portion becomes uniform in the vertical direction, and uniform application of the lubricant is achieved.

When the positioning means is composed of a pair of left and right idler rollers having a vertical axis posture that can freely move in and out of the transportation path of the transportation means and engages and disengages with the tire, the positioning means is transported by the transportation means. The transportation of the tire is stopped by a pair of left and right idle rollers that have advanced to the transportation path.
At this time, the tire is rotated by the rotating means, and the rotation of the tire is allowed by the idle roller.

According to the second aspect of the present invention, which has a pair of left and right driving rollers as the stopping means, the tire conveyed by the conveying means is stopped by the pair of left and right driving rollers that have advanced to the conveying path. . Then, the tire is rotated by the rotation of the drive roller. At this time, since the rollers of the conveying means at the stop position can rotate independently on the left and right sides, rotation of the tire is allowed.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, the tire bead bridging device of the present invention is a conveying means for placing the tire 1 so that the axis of the tire 1 is in the vertical axis posture and conveying the tire 1 in the direction of arrow a shown in the figure.
2, positioning means 3 for positioning the tire 1 at the center of the conveying means 2 in the front-rear direction, and rotating means 4 for rotating the tire 1 around its axis at the positioning position 3.
And a coating means 6 for coating the bead portion 5 of the rotating tire 1 with a lubricant.

The downstream side of the arrow a in the conveying direction is called "front", the opposite direction is "rear", and the horizontal direction orthogonal to the conveying direction is called "left and right". The conveying means 2 is a roller conveyor device. The conveyor device comprises a conveyor frame 7. On the upper part of the frame 7, a plurality of conveyor rollers having a horizontal horizontal axis posture in the left-right direction are rotatably supported.

The conveyor rollers are three front and rear first rollers 8 arranged at the rear of the frame 7, and the first rollers.
Two second rollers 9 in front and back arranged on the right side in front of 8
And two front and rear third rollers 10 arranged on the left side and two front and rear four rollers arranged in front of the second and third rollers 9 and 10.
It comprises a roller 11, two front and rear fifth rollers 12 arranged between and in front of the fourth roller 11, and a sixth roller 13 arranged in front of the fifth roller 12.

The first, second, fourth and sixth rollers
Numerals 8,9,11,13 are composed of an integral roller along the axial direction, and the first roller 8 is freely rotatable, and the second, fourth, and sixth rollers are provided.
The rollers 9, 11, 13 are driving rollers. The third
Each of the roller 10 and the fifth roller 12 is a bearing roller divided along the axial direction, and the bearing rollers adjacent to each other in the axial direction are provided so as to be freely rotatable with respect to each other.

The second roller 9 and the fourth roller 11 are independently movable up and down by an elevator device (not shown). At the raised position of the second roller 9 and the fourth roller 11, all the upper surfaces of the first to sixth rollers 8, 9, 10, 11, 12, 13 are located on the same horizontal conveyance surface. Second and fourth rollers 9,
In the lowered position of 11, the upper surface is located below the transport surface.

The second, fourth and sixth rollers 9, 11, 1
The driving device for driving 3 is a motor 14 attached to the frame 7, a first belt 15 for transmitting the power of the motor 14 to the sixth and second rollers 9, 13, and a first belt 15 It comprises a plurality of pulleys 16 for passing around the second belt 17, a second belt 17 for transmitting the rotation of the sixth roller 13 to the fourth roller 11, and a plurality of pulleys 18 for passing the second belt 17. The first
The belt 15 and the second belt 17 are arranged on the left and right sides of the frame 7, respectively.

As shown in FIG. 4, the belts 15 and 17 are capable of transmitting power by being pressed against the lower surfaces of the rollers 9, 11 and 13. The positioning means 3 is the transportation means 2
It has a stopper that can be freely moved in and out of the transport path of (1) and that is disengageably engaged with the tire 1. This stopper is composed of a coating roller 19. This coating roller 19
A lubricant is applied to the tire bead portion 5 and constitutes the applying means 6. That is, the positioning means 3 and the coating means 6 are also used by the coating roller 19, and these means 3 and 6 are arranged between the left and right second and third rollers 9 and 10. Are shown in FIG.

In FIG. 5, a lubricant storage tank 20 is provided on the conveyor frame 7 so as to be open upward.
A guide tube 21 is provided at the center of the tank 20 so as to pass through in the vertical direction. An air cylinder 22 is fixed to the lower end of the guide tube 21. This air cylinder
A piston rod 23 of 22 is inserted into the guide tube 21 so as to be vertically movable. The upper end of the piston rod 23 is
The bearing housing 24 projects upward from the guide tube 21 and is rotatably fitted onto the projecting portion. A tubular body 25 is fixed to the bearing housing 24, and the tubular body 25 is fitted onto the guide tube 21 concentrically with a predetermined gap. The coating roller 19 is concentrically fitted on the cylindrical body 25.

The coating roller 19 is made of a wear resistant material. The coating roller 19 is an air cylinder.
When it rises by 22, it protrudes upward from the conveying surface of the conveyor 2, and when it descends, it is located below the conveying surface and can be immersed in the lubricant in the tank 20.
When the coating roller 19 projects upward from the conveying surface, the coating roller 19 can freely project into the center hole of the tire 1 on the conveyor 2 and can abut the bead portion 5 of the tire 1. .

Therefore, the coating roller 19 is the tire 1
The positioning means 3 for preventing the movement of the tire 1 in the conveying direction is formed by engaging with the bead portion 5 of the
A coating means 6 for contacting 5 and coating the lubricant is constituted. The rotating means 4 includes the second, third and fifth rollers 9,
It consists of 10,12. That is, by inserting the coating roller 19 into the center hole of the tire 1 on the conveying means 2, the coating roller 19 and the tire bead portion 5 are engaged with each other, and the tire 1 is prevented from being conveyed. At this time, the fourth roller 11 descends below the conveying surface. Therefore, the rotational force of the second roller 9 arranged on the right side is transmitted to the tire 1, and at that time, the tire 1 is prevented from moving in the conveying direction by the coating roller 19, so that the tire 1 has its axis. I try to rotate around my heart. This rotation is allowed because the third and fifth rollers 10, 12 are composed of freely rotatable rollers, the tire 1 rotates about its axis, and the coating roller 19 rotates the tire bead portion 5.
Rotate by touching and apply the lubricant to the bead part 5.

After that, the second roller 9 descends, the fourth roller 11 rises, and the coating roller 19 descends below the conveying surface, so that the tire 1 has the fourth and sixth rollers 11 and 11. It is transported in the transport direction by 13. According to the embodiment having the above configuration, the tire 1 is rotated while maintaining the horizontal state, and the lubricant is applied to the bead portion 5 by the application roller 19 in the vertical axis posture, so that the upper and lower bead portions 5, Lubricant can be evenly applied to 5.

Further, by making the rising height of the coating roller 19 adjustable, the contact position with the bead portion 5 can be changed, so that the dispersion of wear can be reduced as compared with the case where the contact is always made at a fixed position. Planned. FIG. 6 shows another embodiment of the present invention, in which the third roller 10 of the rotating means 4 is used.
Is a drive roller and can be moved up and down.
The roller 9 and the third roller 10 are rotationally driven in opposite directions.

FIG. 7 shows another embodiment of the present invention, in which the positioning means 3 is provided with a stopper which can be moved in and out of the transportation path of the transportation means 2 and engages and disengages with the tire. The stopper is composed of a pair of left and right idler rollers 26 in a vertical posture. The idler roller 26 is provided at the tip ends of a pair of left and right arms 27 arranged above the conveying means 2, and the base ends of the arms 27 are rotatably supported about the vertical axis. ing.

By swinging the pair of left and right arms 27 so that they approach each other, the idle roller 26 provided at the tip of the arms 27 projects into the transport path of the transport means 2 and is transported by the tire. The outer peripheral surface of the tire 1 is engaged to prevent the tire 1 from being conveyed. The structure of the coating means 6 is the same as that of the above-mentioned embodiment. The transport means 2 at the stop position of the tire 1 is provided with four front and rear drive rollers 28 in the right row and four front and rear idle rollers 29 in the left row, and these left and right row rollers 28, 29 are , The second to fifth rollers 9 of the above embodiment,
Equivalent to 10,11,12.

Of the rollers 28 in the right column, not all the rollers may be drive rollers, the rollers A and B in the figure may be drive rollers, and the other rollers may be idle rollers. Also,
The left and right rows of rollers 28 and 29 may both be used as drive rollers and rotated in opposite directions. FIG. 8 shows another embodiment of the present invention in which the stopper of the positioning means 3 is a driving roller 30. This drive roller
The conveyance of the tire 1 is stopped by 30 and the tire 1 is rotated about its axis by rotating the drive roller 30 in the same direction. That is, the drive roller 30 is
The positioning means 3 and the rotating means 4 are also used.

In this case, the rollers 2 in the left and right rows of the conveying means 2
Although 8,29 are idle rollers, a suitable roller may be used as the drive roller as in the case of FIG. still,
Of the pair of rollers on the left and right of the stopper of the positioning means 3,
One may be the idler roller 26 and the other may be the drive roller 30. FIG. 9 shows another embodiment of the present invention,
Above the tire 1 at the tire stop position, hold the nip roller
31 is provided so as to be movable up and down, and the tire 1
By sandwiching between them, the rotation of the tire 1 around its axis is ensured.

In this case, the nip roller 31 and the second roller below it
Which of the rollers 9 is used as a driving roller or an idle roller can be appropriately selected. The present invention is not limited to the above embodiments. Although a predetermined one of the conveyor rollers of the conveying means 2 is configured to be vertically movable, this vertically movable structure is not essential. Further, in order to use each roller as a drive roller or an idle roller, the drive and the idle are not fixedly set from the beginning, but the drive and the idle are switched using an appropriate clutch device or the like. Can be configured as. Further, the coating means 6 is not limited to the roller type and may be a spray type.

[0033]

According to the present invention, since the tire is rotated while maintaining the horizontal state, the lubricant is uniformly applied to the upper and lower beads.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

2 is a partial cross-sectional side view of FIG.

FIG. 3 is a front view of FIG. 1.

FIG. 4 is a drawing showing a contact state between a conveyor roller and a drive belt.

FIG. 5 is a cross-sectional view of coating means.

FIG. 6 is a plan view showing another embodiment of the present invention.

FIG. 7 is a plan view showing another embodiment of the present invention.

FIG. 8 is a plan view showing another embodiment of the present invention.

FIG. 9 is a cross-sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Tire 2 Conveying Means 3 Positioning Means 4 Rotating Means 5 Beads 6 Coating Means 9 Second Rollers 10 Third Rollers 19 Coating Rollers 26 Idler Rollers 30 Drive Rollers

Claims (8)

[Claims] 1. A conveying means for mounting a tire so that the axis of the tire is in a vertical axis posture and conveying the tire in a predetermined direction, a positioning means for positioning the tire at a predetermined position of the conveying means, and the positioning. In a tire bead bridging device having a rotating means for rotating the tire around its axis at a position and an applying means for applying a lubricant to a bead portion of the rotating tire, the rotating means comprises: It is composed of rollers in a horizontal axis posture on which tires are mounted, the rollers are provided separately on the left and right sides through the axis of the tire, and the left and right rollers can rotate independently of each other at the same horizontal level. A tire bead briquette device characterized in that 2. The tire bead bridging device according to claim 1, wherein one of the left and right rollers is a driving roller and the other roller is an idle roller. 3. The tire bead bridging device according to claim 1, wherein the left and right rollers are configured to be rotationally driven in mutually opposite directions. 4. The applying means has an applying roller having a vertical axis posture for applying a lubricant to a bead portion of a tire, and the applying roller is arranged between the left and right rollers so as to be vertically movable. The tire bead bridging device according to any one of claims 1 to 3. 5. The positioning means has a stopper that is capable of retracting and engaging with a tire so that the positioning means can move in and out of a conveying path of the conveying means. The tire bead bridging device described. 6. The tire bead bridging device according to claim 5, wherein the stopper is composed of a coating roller. 7. The tire bead bridging device according to claim 5, wherein the stopper comprises a pair of left and right idler rollers having a vertical axis posture. 8. Conveying means for mounting the tire so that the axis of the tire is in a vertical posture and conveying the tire in a predetermined direction, positioning means for positioning the tire at a predetermined position of the conveying means, and the positioning means. In a tire bead bridging device having a rotating means for rotating the tire around its axis at a position and an applying means for applying a lubricant to a bead portion of the rotating tire, the positioning means is a conveying means. And a pair of left and right drive rollers having a vertical axis posture that engages and disengages with the tire in a reciprocating manner, and the rotating means is constituted by the drive rollers. The transportation means at the position where the tire is positioned has a roller in a horizontal axis position on which the tire is mounted, and the rollers are located at the left and right positions of each other via the axis of the tire. A tire bead briquette device characterized by being independently rotatable.