JPS5914246Y2 - Tire chain loosening device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an axle stop device for a tire chain attached to an automobile tire.

In many cases, tongue buckles were used to tighten the shafts of this type of tire chain, but since tire chains are mostly used in areas where the road surface is frozen during the freezing season, this tongue buckle is tightened. At times, the driver's hands may become stiff and unable to tighten the bolts sufficiently.

Furthermore, the larger the vehicle, the heavier the tire chain, and the vibrations transmitted from the wheels while driving caused many accidents in which the tongue buckle loosened and the chain band came off.

Also, if the tire chain is attached too tightly to the tire and there is no play in the chain, the chain will become fixed like a part of the tire and will not serve any purpose in preventing slipping. there were.

This invention eliminates these conventional drawbacks by making it possible to securely attach the chain to the tire without using a tongue buckle that tends to loosen, and by giving the chain enough play to prevent slipping. The purpose is to

An embodiment of this invention will be described with reference to the drawings. The tips of the locking pieces 3.3 are locked at regular intervals to one side or both sides of a tire chain 2 attached to the circumferential surface of a vehicle tire 1. Rings 4a, 4b, and 4C are provided at the rear of the locking pieces, respectively.

Among these rings, the ring 4a and the adjacent ring 4b or 4C are each connected by a spring 6.6.

10 is a connecting chain whose rear end is irremovably attached to the ring 4C.

This connecting chain 10 has a sufficient length so that it can be attached regardless of the size of the tire, and a hook 12 is attached to the tip with a tensioning spring 11 interposed therebetween.

The shackle 13 paired with this hook 12 is the ring 4C.
and the other ring 4b installed adjacent to it.

In this case, if the shackle is attached directly to the ring 4b, the range in which the shackle can move is narrow, so if the shackle 13 is attached to the ring 4b via the fixed ring 7, the range in which the shackle can move is expanded and the shackle is connected to the mount 16. This makes it easier to attach the chain in the middle.

16 is a mounting element that is removably screwed onto the shackle 13;
17 is a chain attachment device.

Reference numeral 20 denotes a tensioning device, in which a winding drum 22 is supported on a U-shaped main body 21, a rook 23 is integrally supported on this winding drum, and a pawl 24 that engages with this rook 29' is rotated by the main body 21. installation possible.

Reference numeral 25 denotes an operation handle that is detachably attached to the engagement hole 25 provided in the center of the rook 24, 27 is a wire whose rear end is fixed to the winding drum 22, and the tip of this wire is connected to a locking part provided in the main body 21. 28, folded back, and detachably fixed with a fastener 29.

Note that when inserting the wire through the ring, it is done with the fastener 29 removed and the locking part 28 removed.

The chain 2 is attached to the circumferential surface of the tire 1, and the tips of the locking pieces 3, 3 are locked to the side portions of the chain at approximately constant intervals.

In this case, the springs 6.6 are respectively connected to the rings 4a, 4b, 4a, 4c located at the rear of the locking piece, and the ends of the connecting chain 10 are left disconnected as shown in FIG. A ring 4a of locking pieces 3, 3 attached to a tire chain 2 attached to a tire 1.

Among 4b and 4C, the other rings 4b, 4b, 4C, excluding the rings 4a and 4a connecting one end of two springs,
Insert the wire 27 through 4C.

The rear end of the wire 27 is fixed to the winding drum 22 of the main body 21, and the tip of the wire is passed through the ring, then inserted into the locking part 28 provided on the main body and pulled, and the remaining part is folded back and As shown in Figure 4, fasten with the fasteners 29 and 29.

Next, the operation handle 25 attached to the engagement hole 26 of the rook 23 is rotated to wrap the wire 27 around the winding drum 22, narrowing the distance between the wheels 4b, 4b, 4C, and 4C, and tensioning the tire chain. , with the connecting chain 10.10 stretched straight, attach the middle part of the connecting chain to the mount 16.
Remove and attach to shackle 13.

In this case, the remaining end portion of the connecting chain may be folded back as shown in FIG. 1, and the hook 12 may be engaged with the rear side of the connecting chain.

At this time, if the spring 11 is tensioned and attached to the connecting chain, this folded part will be tensioned, so the hook 1
2 will not come off the connection chain.

After the tire chain 2 is attached to the tire 1 in this way, if the wire 27 and the tensioning device 20 are removed from the wheels 4b and 4C, the tire chain has a moderate elasticity due to the spring 6.6 and a strong connection due to the shackle 13. This prevents the chain from coming off while the car is running, and has a sufficient anti-slip function.

When removing the tire chain 2 from the tire 1, remove the attachment 16 on the shackle 13, and the connecting chain 10
is removed from the shackle, and the tire chain 2 can be removed from the tire.

As mentioned above, this invention does not use a threaded part like a tongue buckle, but uses a separate tensioning device to attach the chain attachment device with the tire chain tensioned, so vibrations transmitted from the tire can cause damage to the tire. The chain does not come off, and since the spring is strong and has an appropriate elastic force, the tire chain has a play that occurs while the tire is running, which is a beneficial feature that can sufficiently prevent slippage. It is something.

[Brief explanation of the drawing]

Figure 1 is a front view of a chain attachment device attached to a tire being tightened by a tensioning device, Figure 2 is an enlarged front view of the same main part, Figure 3 is a front view of a partially broken connecting chain, and Figure 4
The figure is a partially cutaway front view of the tensioning device, and FIG. 5 is a side view of the same. 3 is a locking piece, 4 is a ring, 6 is a spring, 10 is a connecting chain, 11 is a spring, 12 is a hook, 13 is a shackle, 16 is an attachment, 17 is a chain attachment device, 20 is a tension device, 27 is wire

Claims (1)

[Scope of utility model registration request] Rings 4a, 4b, and 4C are attached to the rear of a plurality of pairs of locking pieces 3, each of which detachably locks the tips of the tire chain 2 at an intermediate position on the side surface of the tire chain 2 attached to the circumferential surface of the tire 1.
A pair of rings 4a located in the middle and a pair of rings 4b, 4b and 4c, 4c located on both sides thereof are connected by a spring 6, and a fixed ring 7 is connected to each of the pair of rings 4b. A pair of shackles 13 each having a removable mount 16 are attached, and each ring 4C facing the iron wheels 4b has a hook 12 at its tip for locking to the iron wheels 4c, 4c, and has a hook 12 in the middle. a chain attachment device 17 that connects the bases of long connecting chains 10° 10 each having springs 11, 11, a wire that is sequentially inserted through each of the rings, and a tensioning device that tensions the wire that is inserted through the iron rings. and a wire tensioning device for tensioning the chain attachment device, and with the wire tensioning device tensioning the wheels 4b, 4b, 4C, 4C, the chains connected to the iron wheels 4b, 4C, respectively, 10° and 10°. A tire chain shaft stopping device characterized in that the wire tensioning device is removed after the wire tensioning device is connected.