JPS6133672B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spike pin extraction device for a snow tire equipped with spike pins.

As is well known, the number of car accidents caused by snow and ice bumps during the winter season tends to gradually increase. The effectiveness of snow tires in snowy areas is well known and widely used, but in areas where ice bangs occur, snow tires alone have little effect.
For this reason, chain is used in combination, but chain has a short lifespan and is not very effective. Snow spike tires were developed to solve these problems. These tires can run at high speeds without any problems on regular roads as well as on ice, and their effectiveness has been widely recognized, and now the majority of snow tires are equipped with spikes. However, this not only generates a lot of noise, but also
Damage to road surfaces and pollution caused by road shavings have become a major social problem. Regarding this, administrative guidance has been given to remove spikes after the winter season ends, but the reality is that this is rarely done because spike pins that are driven into tires are difficult to remove. Although it is possible to remove the spike pins using special techniques, this increases the cost and makes it difficult to generalize. In addition, when manufacturing retreaded tires, it is essential to remove the remaining spikes, and if spiked tires are avoided due to the high cost of removing them, good quality stand tires will be discarded. This will ultimately have a significant impact on costs. In order to solve such problems,
The first step was to develop a device that could easily remove spike pins that had been driven into tires.
This will prevent pollution caused by spiked tires, expand the scope of resource reuse, and greatly contribute to the tire industry, tire retreading industry, and transportation industry.

The present invention has been made in response to the above-mentioned demands, and its purpose is to provide a device that has a simple configuration and can easily remove spike pins.

In order to achieve the above object, the snow tire spike pin extraction device according to the present invention includes a mount provided on an underframe on which a tire is placed, and a drive source that moves the spike pins up and down along a column erected on the underframe. The extraction member is composed of a movable member that moves, a nozzle holder that is rotatably mounted on a shaft provided on the movable member and rotated by a drive source, and an extraction member that is attached to one end of the nozzle holder. The spike pin is removed from the tire by inserting it into the periphery or side of the spike pin and rotating it. The present invention will be explained below using the drawings.

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a longitudinal sectional view of the nozzle portion.
In the figure, reference numeral 1 denotes an underframe, and a mount 2 whose height can be adjusted using pins 3, for example, is provided. Further, a column 4 is erected on the underframe 1, and a press-fit cylinder 5 with an operating rod 6 facing downward is fixed to the upper end of the column 4, and the tip of the operating rod 6 is movable up and down along the column 4. It is connected to the movable member 7.
8 is a short shaft protruding from the movable member 7, and 9 is a nozzle holder rotatably mounted on the short shaft 8 so that one end is located on the mount 2. One end of this nozzle holder 9 has a through hole 10 as shown in FIG.
is provided, and the nozzle 11 is screwed together. This nozzle 11 can be replaced as appropriate depending on the shape, size, etc. of the spike pin. 13
is a push cylinder attached to the nozzle holder 9, and its operating rod 14 is inserted into the through hole 1 of the nozzle holder 9.
0 and is located within the through hole 12 of the nozzle 11.

Reference numeral 15 denotes a holding stand whose one end is fixed to the short shaft 8, and the other end is fixed to a support member 18 that moves up and down along the column 4 together with the movable member 7. Reference numeral 16 denotes a rotating cylinder, which is rotatably fixed to the upper part of the holding base 15, and the tip of an operating rod 17 is connected to the other end of an arm 19 whose one end is connected to the nozzle holder 9. Therefore, by moving the operating rod 17 of the rotating cylinder 16 forward or backward, the nozzle holder 9 rotates about the short axis 8 within a range of θ.
20 is a nipple provided in the nozzle holder 9 and communicates with the through hole 10; 22 is a pump 21 and the nipple 2;
The pipe connecting 0, 24 is a lubricant tank,
The pump 21 is actuated by the actuating arm 23 provided on the movable member 7 when it is lowered, and supplies the lubricant in the tank 24 to the nozzle 11 via the nozzle holder 9, and the spike pin 29 (FIG. 3). The rubber layer of the tire 28 is easily pushed and spread by the nozzle 11. Reference numerals 25 and 26 are foot-operated control valves provided on the base of the underframe 1, which control the press-fit cylinder 5 and the rotation cylinder 16. 27
is an air pressure socket, 28 is a tire, and 29 is a spike pin.

Next, the operation (operation example) of the apparatus of the present invention configured as described above will be explained.

(1) Connect the air pressure socket 27 to an air pressure source (not shown) and replenish the tank 24 with lubricant.

(2) Place the tire 28 on the mount 2 after aligning the mount 2 with the position suitable for the size of the tire 28 and fixing it with the pin 3.

(3) Attach the nozzle 11 that matches the shape and size of the spike pin 29 to the holder 9.

(4) Position the spike pin 29 directly below the nozzle 11 and press the control valve 25 forward to introduce air pressure into the press-fit cylinder 5.

As a result, the operating rod 6 of the press-fit cylinder 5 advances (descends), the movable member 7 descends along the column 4, the operating arm 23 operates the pump 21, and the tip of the nozzle 11 reaches the surface of the tire 28. Drop some lubricant just before.

(5) As the movable member 7 descends, the nozzle 11 spreads out the rubber layer of the tire 28 as shown in FIG. 4a, and the spike pin 29 enters the through hole 12 of the nozzle 11. As shown in FIG. 4b, when the tip of the nozzle 11 reaches the washer of the spike pin 29, the shaft of the spike pin 29
It is completely accommodated in the through hole 12 of 1.

(6) When the control valve 26 is pressed forward while applying pressure to the press-fit cylinder 5, the rotation cylinder 1
Air pressure is introduced into 6 to advance the actuating rod 17 and rotate the nozzle holder 9 via the arm 19. As a result, as shown in FIGS. 4c and 4d, the spike pin 29 is inserted into the pinhole 3
Float out and get out.

(7) At the same time, the push cylinder 13 is operated to advance the operating rod 14, and the spike pin 29 is pushed out of the nozzle 11 and dropped as shown in FIG. 4e.

(8) When the control valves 25 and 26 are stepped backward, the operating rods 6 and 17 of the press-fit cylinder 5 and the rotation cylinder 16 move back, and each component returns to its original position.

(9) By repeating the above operations, all the spike pins 29 provided on the tire 28 can be completely removed. Note that the time required for one step is only a few seconds.

FIG. 5a is a side view showing essential parts of another embodiment of the present invention, and FIG. 5b is a front view thereof. In this embodiment, a wedge member 11a is attached to the nozzle holder 9 instead of the nozzle, which can be replaced according to the shape, size, etc. of the spike pin. As a result, as shown in FIGS. 6a and 6b, the movable member 7
to lower the nozzle holder 9 and remove the wedge member 11.
a along the side of the spike pin 29 to below the lower end of the spike pin 29. Next, when the nozzle holder 9 is rotated via the arm 19, the wedge member 11a is rotated as shown in FIGS.
is from the bottom of spike pin 29 to spike pin 2.
9 is pushed up to escape from the pinhole 30.
Note that the wedge member 11a may be configured to have an arcuate cross section.

In the above description, the press-fit cylinder and the rotation cylinder are operated by pneumatic pressure, but a hydraulic cylinder may be used, or the movable member and the nozzle holder may be driven by a motor. Furthermore, it goes without saying that the shapes, configurations, etc. of each part are not limited to the above embodiments, and can be changed as appropriate without departing from the gist of the present invention.

As is clear from the above description, according to the present invention, the spike pin can be removed extremely easily and in a short time with a simple structure, thereby preventing pollution caused by spiked tires and expanding the range of resource reuse. be able to. Therefore, it is extremely important to contribute to related industries.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a longitudinal sectional view showing the relationship between the nozzle holder and the nozzle, and Figs. 4 a to e are explanatory views of the operation of the present invention. , FIGS. 5a and 5b are side and front views showing essential parts of another embodiment of the present invention, and FIGS. 6a to 6d are explanatory views of its operation. 1: Underframe, 2: Mount, 4: Column, 5: Press-fit cylinder, 7: Movable member, 8: Short shaft, 9: Nozzle holder, 11: Nozzle, 11a: Wedge member, 1
3: Push cylinder, 16: Rotating cylinder, 1
9: Arm, 21: Pump, 22: Pipe, 24: Tank, 25, 26: Control valve, 28:
Tire, 29: Spike pin.

Claims (1)

[Claims] (1) a position-adjustable mount provided on an underframe on which a tire is placed; a movable member that moves up and down along a column erected on the underframe by a first drive source; a nozzle holder rotatably attached to a shaft and rotated by a second drive source; a extraction member attached to one end of the nozzle holder; and a device for operating the first and second drive sources. A spike pin extraction device for a snow tire, wherein the spike pin is extracted from the tire by inserting the extraction member into the periphery or side of the spike pin and rotating the nozzle holder.