JPH08207156A - Mending device of puncture of tire - Google Patents

Abstract

PURPOSE: To execute at a time an operation of opening a hole in a tire and inserting a puncture mending material into it and moreover to automate the operation. CONSTITUTION: A cutting tool 16 is inserted into a puncture hole 45 while it is rotated by a spindle arbor 14. When the spindle arbor 14 is rotated reversely, a needle roller 23 in a recessed part transmits no rotation to the cutting tool 16 and the cutting tool 16 runs idle. At this time, a feed sleeve 30 rotates reversely in the same way as the spindle arbor 14. When the feed sleeve 30 rotates reversely, a feed screw 25 advances rightward in the Figure and the cutting tool 16 is moved rightward with the movement of this feed screw 25 and drawn out. As the cutting tool 16 is moved, a center rod is inserted into a hole 20 and pushes out a plug 21. When the cutting tool 16 is drawn out, the plug 21 is left in the puncture hole 45.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire puncture repairing apparatus suitable for a tire such as an automobile having a flat tire.

[0002]

2. Description of the Related Art In general, when a tire of an automobile is punctured, repair is carried out by the following procedure. First, check the appearance of the tire to find and remove foreign objects such as nails. At this time, remember the nail insertion angle. If you cannot find the puncture hole, turn on the air and listen to the sound of air leaks. If you can't hear the sound of this air leak, blow a hole and find a puncture hole. The reamer is inserted into the puncture hole 45 found in this way, and the wound hole is adjusted by pushing and pulling the reamer several times according to the angle at which the nail was inserted. Next, as shown in FIG. 5, a hole 62 at the tip of a tool 61 called a needle
The insertion plug 63, which is a puncture repair material, is passed through, the insertion lubricating oil, the vulcanizing adhesive, and the like are applied to the plug 63, and the insertion is pushed into the puncture hole 45. Then, the tool 61 is pulled out while leaving the plug 63 in the puncture hole 45. Next plug 63
The end protruding from the surface of the tire 19 is cut with a cutter or the like for processing. This completes the flat repair.

[0003]

However, in such a conventional puncture repairing method, in order to insert the plug 63, which is a puncture repairing material, first, a slightly large hole is made with a reamer, and then the plug 63 is opened by the tool 61. Plug in,
Further, it is necessary to perform the work of two times of pulling out the tool 61. Moreover, since it is manual work, there was a problem that flat repair could not be performed smoothly.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to make a work of making a hole in a tire and inserting a flat tire repair material by a simple operation. Moreover, it is to provide a tire puncture repair device that automates the work.

[0005]

Therefore, in the tire puncture repair device according to the first aspect, the shaft cores 11 and 14 which are rotationally driven in the forward and reverse directions by the motor 6 and the tip ends of the shaft cores 11 and 14 are projected. A center rod 15, a cutting tool 16 into which a puncture repair material 21 of a tire 19 can be freely inserted and taken out, and a hole 20 into which the center rod 15 is inserted is bored on the base side, and a cutting tool 1.
When inserting the tip of 6 into the puncture hole 45 of the tire 19, the cutting tool 16 is rotated in the forward direction together with the normal rotation of the shafts 11 and 14, and the tip of the cutting tool 16 is inserted into the puncture hole 45. , 14 when the cutting tool 16 is rotated in the reverse direction, the cutting tool 16 is stopped while the rotation of the cutting tool 16 is stopped.
5, and a control mechanism 50 for pulling out from 5.

A tire puncture repair device according to claim 2 is
A recess 22 that is recessed along the outer peripheral surface of the spindle arbor 14 and has a shallow depth in the reverse rotation direction of the spindle arbor 14, and a needle roller 23 that is loosely fitted where the recess 22 is deep. The base side has a hole 20 in which the spindle arbor 14 is rotatably covered so as to cover the recessed portion 22, the plug 21 can be inserted into and taken out from the tip side, and the center rod 15 of the spindle arbor 14 can be inserted. A cutting tool 16, a feed screw 25 fixed to the outer peripheral surface of the base of the cutting tool 16, a spindle 11 for transmitting the rotation of the motor 6 to a spindle arbor 14, and a cylindrical inner circumference that rotates together with the spindle 11. The feed sleeve 3 in which the threaded portion 31 threaded on the surface is engaged with the threaded portion 28 threaded on the outer peripheral surface of the feed screw 25.
The control mechanism 50 is composed of 0 and 0.

[0007]

According to the tire puncture repair device of the first aspect, the puncture hole 45 is inserted by inserting the cutting tool 16 into the puncture hole 45 of the tire 19 while rotating it forward.
Can be opened while automatically adjusting. When the shaft cores 11 and 14 are rotated in the reverse direction after inserting the tip of the cutting tool 16 into the puncture hole 45, the control mechanism 50 causes the cutting tool 16 to idle around the shaft cores 11 and 14, and the cutting tool 16 rotates. It is pulled out while stopped. As the cutting tool 16 is pulled out, the center rods 15 of the shaft cores 11 and 14 are inserted into the holes 20 of the cutting tool 16. Hole 2 as the cutting tool 16 is pulled out
The puncture repair material 21 in 0 is pushed out by the center rod 15 while maintaining its position, whereby the puncture repair material 21 inserted into the hole 20 at the tip of the cutting tool 16 is punctured by the tire 19. It will remain in the hole 45. Therefore the cutting tool 16
Is rotated forward while being inserted into the tire 19, and after being inserted, the shaft cores 11 and 14 are reversely rotated, and the cutting tool 16 is automatically pulled out while leaving the puncture repair material 21 in the puncture hole 45. You can easily repair flat tires.

According to the tire puncture repair device of the second aspect, when the spindle 11 is normally rotated, the needle roller 23 in the recess 22 of the spindle 11 moves to the shallower side of the recess 22 and the needle roller 23 moves to the recess 22. The rotation of the spindle 11 is transmitted to the cutting tool 16 by the needle roller 23 which is sandwiched between the inner surface of the cutting tool 16 and the inner surface of the cutting tool 16. This enables the cutting tool 16
Can be inserted into the puncture hole 45 of the tire 19 while rotating, so that the puncture hole 45 of the tire 19 can be arranged by the cutting tool 16. When the spindle arbor 14 is rotated in the reverse direction, the needle roller 23 moves to a deep position in the recess 22 and the needle roller 23 becomes idle in the recess 22. Even if the spindle arbor 14 rotates, the rotation of the cutting tool 16
To the spindle arbor 14, the cutting tool 16 does not rotate, and the cutting tool 16 does not rotate. At this time, since the spindle 11 is rotating together with the spindle arbor 14, the feed sleeve 3
0 also rotates together. Since the feed screw 25 fixed to the base side of the cutting tool 16 is screwed with the screw portion 31 of the feed sleeve 30 and the outer peripheral surface thereof, the feed screw 25, that is, the cutting tool 16 is rotated when the feed sleeve 30 rotates. It is screwed in the direction in which it is pulled out from the tire 19. When the cutting tool 16 is screwed, the center rod 15 of the spindle 11 is moved to the cutting tool 1
6, the plug 21 in the hole 20 is pushed out by the center rod 15, and the plug 21
In the state of pushing out, the plug 21 remains in the puncture hole 45 of the tire 19. Therefore, the cutting tool 16 is inserted into the tire 19 while rotating in the forward direction, and after the insertion, the spindle arbor 14 is rotated in the reverse direction and the cutting tool 16 is automatically pulled out while leaving the plug 21 in the puncture hole 45. You can easily repair flat tires.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the tire puncture repair device of the present invention will be described in detail with reference to the drawings. 1 to 3, in particular, as shown in FIG. 3, the device body 1 is formed into a pistol type, and an operation switch 3 is swingably provided on an upper portion of the grip portion 2 with a shaft 4 as a fulcrum. . An air motor 6 is arranged at an end portion inside the case body 5 on the side of the grip portion 2, and an output shaft 7 of the motor 6 is provided.
Is connected to the input side of the planetary speed reducer 8. A rotary shaft 9 is provided on the output side of the planetary speed reducer 8.

The casing 10 on the front end side of the apparatus main body 1 is formed in a substantially cylindrical shape with both ends open, and is narrowed at two points so that the diameter becomes smaller toward the front end side. The base side of the casing 10 is the case body 5
The outer peripheral surface of the is joined so as to cover it. As shown in FIGS. 1 and 2, a recess is formed in the end surface of the spindle 11 on one end side, and the small diameter portion at the tip of the rotary shaft 9 is inserted into the recess and the bolt 12 is used. It is connected. The other end of the spindle 11 is connected to a spindle arbor 14 via a key 13 to drive the spindle arbor 14 to rotate. A thin center rod 15 is integrally formed at the tip of the spindle arbor 14.

A cutting tool 16 in which the end of the spindle arbor 14 is inserted into one end while accommodating the center rod 15 is formed in a cylindrical shape, and a tip of an insertion portion 18 formed through a step portion 17 is formed. Is sharpened so as to easily pierce the tire 19. Further, a hole 20 is formed in the insertion portion 18 on the tip side of the cutting tool 16, and both ends are opened by the hole 20. The opening on the distal end side of the hole 20 is obliquely opened on the tapered surface on the distal end side of the insertion portion 18. A plug 21 made of a hard rubber material is inserted into the hole 20 of the cutting tool 16 as a puncture repair material for the tire 19. A plurality of recesses 22 (see FIG. 4) are formed along the circumferential direction on the outer peripheral surface of the spindle arbor 14 on the tip side, and a cylindrical needle roller 23 is housed in the recess 22. That is, when the spindle arbor 14 is inserted into the cutting tool 16, the needle roller 23 is inserted into the recess 22 of the spindle arbor 14 and the needle roller 23 is inserted into the cutting tool 16. As shown, a needle roller 23 is provided between the inner peripheral surface of the cutting tool 16 and the surface of the recess 22 of the spindle arbor 14 so as to be freely rotatable. As shown in FIG. 1, the recesses 22 for accommodating the needle rollers 23 are formed in two steps along the upper side of the spindle arbor 14, and the number of the recesses 22 is three in the circumferential direction in this embodiment. Here, the shape of the recess 22 is formed to be larger than the outer shape of the needle roller 23 at the base of the recess 22, and is formed to be narrower to the tip of the recess 22 (equal to or less than the outer diameter of the needle roller 23). The functions of the recess 22 and the needle roller 23 will be described later. 44 is the needle roller 2
3 is a spring that urges 3 toward the outside.

A projection 26 is circumferentially provided on the base side of the cutting tool 16, and a substantially cylindrical feed screw 25 and a nut 27 are screwed to sandwich the projection 26. It is arranged. That is, the screw portion on the inner peripheral surface of the feed screw 25 and the screw portion on the outer peripheral surface of the nut 27 are screwed together to fix the feed screw 25 to the base side of the cutting tool 16. A screw portion 28 is threaded on the outer peripheral surface of the feed screw 25. A feed sleeve 30 having a substantially bottomed tubular shape is connected to the spindle 11 via a key 29 so that the feed sleeve 30 can rotate together with the spindle 11 and the spindle arbor 14. A screw portion 31 is threaded on the inner peripheral surface of the feed sleeve 30 over substantially the entire axial direction, and the screw portion 31 of the feed sleeve 30 and the screw portion 28 of the feed screw 25 are screwed together. As described later, when the rotation of the cutting tool 16 is stopped, the cutting tool 16 can be screwed in the axial direction by the screwing of the screw portions 28 and 31.

A cylindrical spindle bush 24 is provided on the outer peripheral surface of the cutting tool 16, and a ball 32 is interposed between the end surface of the spindle bush 24 on the base side and the end surface of the feed screw 25. . Further, a nut 33 for preventing the feed screw 25 from coming off is screwed and fixed to a threaded portion formed on the outer peripheral surface of the tip of the feed sleeve 30. In such an assembled state, between the tip end portion of the casing 10 and the base end side of the spindle bush 24,
A coil-shaped spring 34 is interposed. The spring 34 is composed of a compression spring, and always urges the cutting tool 16 rightward in the drawing. Reference numeral 35 is a rotation stop key, and 36 is a washer.

On the other hand, a bolt 37 is attached to the base of the casing 10.
The guide pin 38 is attached by the
The end surface of the tip of 8 is brought into contact with the surface of the tire 19. That is, the cutting tool 1 of the device body 1
When the insertion portion 18 of No. 6 is pierced into the hole of the tire 19 while rotating, the step portion 17 of the cutting tool 16 and the end face of the tip of the guide pin 38 come into contact with the surface of the tire 19. In addition, 39 is a bush. See also FIG.
Shows the case where an adapter 40 is attached to the tip of the guide pin 38. Further, by loosening the bolt 37, the guide pin 38 can be moved to any position along the axial direction. In FIG. 3, 41 is a washer.

In FIG. 3, when the lower portion 3a of the operation switch 3 is pressed, the switch portion 42 is driven to rotate the motor 6 leftward, and when the upper portion 3b of the operation switch 3 is pressed, the switch portion 43 is driven and the motor 6 is turned on. Controlled to rotate right. When the lower portion 3a of the operation switch 3 is pressed, the motor 6 rotates counterclockwise, which rotates the spindle arbor 14 counterclockwise via the planetary speed reducer 8, the spindle 11 and the like. When the upper portion 3b of the operation switch 3 is pressed, the motor 6 rotates clockwise, which causes the spindle arbor 14 to rotate clockwise via the planetary speed reducer 8, the spindle 11 and the like. In FIG. 4, when the spindle arbor 14 rotates counterclockwise, the needle roller 23 in the recess 22 moves to the right and is brought into pressure contact with the spindle arbor 14 and the inner surface of the cutting tool 16, thereby transmitting the left rotation of the spindle arbor 14 to the needle roller. To the cutting tool 16 via 23. As a result, the cutting tool 16 also rotates counterclockwise as the spindle arbor 14 rotates counterclockwise. Next, when the spindle arbor 14 rotates to the right, the needle roller 23 moves to the left of the recess 22 so that the needle roller 23 becomes idle in the recess 22 and no rotational force is transmitted to the cutting tool 16. ,
The cutting tool 16 does not rotate in response to the rotation of the spindle arbor 14, but becomes a so-called idle state. That is, in this embodiment, when the spindle arbor 14 is rotated counterclockwise, the cutting tool 16 is also rotated together, and when the spindle arbor 14 is rotated clockwise, the cutting tool 16 does not rotate but only the spindle arbor 14 rotates clockwise. Of course, when the spindle arbor 14 rotates to the right, the cutting tool 16 may be rotated together with the cutting tool 16 so that the cutting tool 16 does not rotate when it rotates to the left.

Here, the needle roller 23, the feed screw 25, the feed sleeve 30 and the like arranged in the recess 22 constitute a control mechanism 50.

Next, the tire 1 when the main body 1 of the apparatus is used
The operation of the apparatus main body 1 in the flat repair of No. 9 will be described. First, the plug 21 is inserted into the hole 20 of the insertion portion 18 at the tip of the cutting tool 16 of the apparatus body 1 from the tip side as shown in FIG.
Insert as shown in. And the lower part 3 of the operation switch 3
Press a to rotate the spindle arbor 14 counterclockwise. When the spindle arbor 14 is rotated counterclockwise, the needle roller 23 in the recess 22 moves to a shallow position of the recess 22 as shown in FIG. 4, so that the needle roller 23 is held between the inner surface of the cutting tool 16 and the outer surface of the spindle arbor 14. Then, the rotation of the spindle arbor 14 is transmitted to the cutting tool 16, and the cutting tool 16 rotates counterclockwise in cooperation with the spindle arbor 14. By this action, the cutting tool 16 is rotated counterclockwise and inserted into the flat hole 45 of the flat tire 19. The puncture hole 45 is a small hole when puncturing, but it becomes a little larger by inserting the insertion portion 18 of the cutting tool 16 so that the puncture hole 45 is adjusted. At this time, the guide pin 38 and the end surface of the step portion 17 are inserted until they contact the surface of the tire 19. In this state, as shown in FIG. 1, the plug 21 mounted on the cutting tool 16 is arranged in the puncture hole 45 of the tire 19 through the insertion portion 18 of the cutting tool 16.

Next, the upper portion 3b of the operation switch 3 is pushed to rotate the spindle arbor 14 clockwise. When the spindle arbor 14 is rotated clockwise, the needle roller 23 comes to a deep position of the recess 22 as shown in FIG. 4, and is separated from the inner surface of the cutting tool 16 so that the rotation of the spindle arbor 14 is not transmitted to the cutting tool 16. As a result, the cutting tool 16 does not rotate and the spindle arbor 1
Only 4 rotates to the right. When only the spindle arbor 14 is rotating to the right, the feed sleeve 30 that cooperates with the spindle arbor 14 also rotates. When the feed sleeve 30 rotates, the screw portion 31 of the feed sleeve 30 and the feed screw 25
Since it is screwed with the screw part 28 of the feed sleeve 30,
Rotation causes the feed screw 25 to be advanced rightward in FIG. When the feed screw 25 moves to the right, the cutting tool 16 integrated with the feed screw 25 also moves to the right. At this time, the center rod 1 of the spindle arbor 14
5 does not move to the right, and only the cutting tool 16 comes out of the flat hole 45 of the tire 19. Therefore, when the cutting tool 16 is removed, the center rod 15 of the spindle arbor 14 is moved to the cutting tool 16
The center rod 15 is inserted into the hole 20 of the tire, and the tip surface of the center rod 15 moves the plug 21 into the flat hole 45 of the tire 19.
I will leave it inside. This is the state shown in FIG. In addition, the cutting tool 1 is driven by the urging force of the spring 34.
6 is easy to come off. The ball 32 interposed between the feed screw 25 and the spindle bush 24 gives the feed screw 25 a counterclockwise rotation.

After removing the cutting tool 16 from the puncture hole 45, the plug 21 protruding from the surface of the tire 19
Repair of the flat tire is completed by performing post-processing such as cutting the end of the with a cutter. Further, when the cutting tool 16 is pulled out, it is retracted into the apparatus main body 1 as shown in FIG. 2. Therefore, while rotating the cutting tool 16 by hand, pull out to the tip side to restore the original state as shown in FIG. Let

As described above, in this embodiment, the puncture hole 45 can be prepared by inserting the puncture hole 45 while rotating the cutting tool 16, and when the cutting tool 16 is pulled out, the spindle arbor 14 is reversed. The cutting tool 16 is idled with respect to the spindle arbor 14 by rotating in the direction, and the spindle arbor 14 is rotated in the reverse direction to automatically pull out the cutting tool 16. When the cutting tool 16 is pulled out, the center rod 15 is inserted into the hole 20 of the cutting tool 16, and when the cutting tool 16 is pulled out, the plug 21 pushed out by the center rod 15 is inserted into the puncture hole 4 of the tire 19.
Remain within 5. Therefore, the plug 21 can be automatically embedded in the puncture hole 45 by a single operation.

[0021]

According to the tire puncture repairing apparatus of the present invention, the puncture hole can be easily repaired by inserting it into the puncture hole of the tire while rotating the cutting tool. Also, after inserting the cutting tool into the tire, you can pull out with the rotation of the cutting tool stopped by rotating the shaft core in reverse,
At the same time, the center rod can leave the flat repair material in the hole of the cutting tool in the flat hole of the tire. Therefore, with this device, puncture repair can be automatically embedded in the tire in one operation, and puncture repair can be performed quickly and easily.

According to the tire puncture repair device of the second aspect, the puncture hole can be arranged so as to be easily repaired by inserting the puncture hole of the tire while rotating the cutting tool. After inserting the cutting tool into the tire, the spindle arbor can be rotated in the reverse direction to pull it out while the rotation of the cutting tool is stopped.At the same time, the center rod can be used to remove the puncture repair material plug in the hole of the cutting tool from the tire. Can be left in the puncture hole. Therefore, with this device, the plug can be automatically embedded in the tire in one operation, and puncture repair can be performed quickly and easily. Moreover, it is possible to form a control mechanism having a simple structure for rotating the cutting tool and embedding the plug in the puncture hole of the tire by stopping and pulling it out.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a tip of a cutting tool according to an embodiment of the present invention is inserted into a tire.

FIG. 2 is a cross-sectional view showing a state in which the cutting tool according to the embodiment of the present invention is pulled out from the tire.

FIG. 3 is a cross-sectional view showing the entire apparatus body of the embodiment of the present invention.

FIG. 4 is an explanatory view showing the action of rotating and stopping the cutting tool according to the embodiment of the present invention.

FIG. 5 is a diagram showing a flat repair of a conventional example.

[Explanation of symbols]

 1 Device Main Body 6 Motor 11 Spindle 14 Spindle Arbor 15 Center Rod 16 Cutting Tool 18 Insertion Part 19 Tire 20 Hole 21 Plug 22 Recessed 23 Needle Roller 25 Feed Screw 28 Screw Part 30 Feed Sleeve 31 Screw Part 45 Punk Hole 50 Control Mechanism

Claims (2)

[Claims] 1. A shaft core (11) (14), which is rotationally driven in a forward and reverse direction by a motor (6), and the shaft core (11) (14).
The center rod (15) protruding from the tip side of the tire and the puncture repair material (21) of the tire (19) can be inserted and removed freely at the tip, and the center rod (1) is attached to the base side.
5) A cutting tool (16) having a hole (20) into which the hole (20) is to be inserted and the shaft cores (11) (14) when the tip of the cutting tool (16) is inserted into the flat hole (45) of the tire (19). Rotate the cutting tool (16) forward with the normal rotation of the
When the shaft cores (11) and (14) are rotated in the reverse direction at the position where the tip of 6) is inserted in the puncture hole (45), the cutting tool (16) is stopped while the rotation of the cutting tool (16) is stopped. A tire puncture repair device, comprising: a control mechanism (50) for pulling out the puncture hole (45). 2. A recess (22) provided along the circumferential direction of the outer peripheral surface of the spindle arbor (14) and having a shallow depth in the reverse rotation direction of the spindle arbor (14), and this recess (2).
2) Needle roller (2)
3), the spindle arbor (14) is rotatably covered so that the base side covers the recessed portion (22), and the plug (21) can be freely taken in and out on the tip side and the spindle arbor (14) A cutting tool (16) having a hole (20) into which the center rod (15) can be inserted, a feed screw (25) fixed to the outer peripheral surface of the base of the cutting tool (16), and a motor (6). A spindle (11) for transmitting the rotation to the spindle arbor (14) and a screw portion (31) which is rotated together with the spindle (11) and is threaded on the inner peripheral surface of the cylinder are provided on the outer peripheral surface of the feed screw (25). The tire puncture repair device according to claim 1, wherein the control mechanism (50) is constituted by a threaded screw portion (28) and a feed sleeve (30) screwed together.