JPH0442169Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connecting fitting used in a tire slip prevention device equipped with a non-metallic tread member such as synthetic resin.

[Prior art] There are various types of anti-slip devices used when driving on slippery surfaces such as snow-covered roads, but recently, anti-slip devices made of synthetic resin have replaced the conventional metal chains. demand is on the rise.

A synthetic resin anti-slip device includes a plurality of synthetic resin tread members wrapped around a tire.
Adjacent ends of these tread members are connected to each other by connecting fittings, and some of the connected ends are detachable so that they can be attached to and removed from the tire.

For example, in the conventional anti-slip device shown in FIG. 9, a plurality of tread members 1 along the circumferential direction of a tire T are connected to each other by connecting fittings 2.
And the connection fitting 2 is attached to the connection part 3 that can be separated.
A removable connecting fitting 2' having a similar shape is used. This connecting fitting 2' is stored separately from the tread member 1 when the anti-slip device is not in use.
By inserting the hook 5 from the tip 5a side, the tread members 1 are connected to each other as shown by the two-dot chain line in the figure.

The connecting fittings 2, 2' are simply connected to the tread member 1.
Since it is provided with a hook 5 for not only connecting the tread member 1 but also for hooking the rubber band 6, the function for connecting the tread member 1 and the function for hooking the rubber band 6 can be combined.

[Problem that the invention attempts to solve]

However, in the above conventional example, the connecting fitting 2' used for the detachable connecting point 3 must be stored completely separated from the tread member 1 when not in use for the anti-slip device. There is a high risk of losing it. Also,
In order to attach the connecting fitting 2' to the hole 4 of the tread member 1, it is necessary to insert each tip 5a of the pair of hooks 5 into the two holes 4 at the same time and inverting the fitting 2'. It took some time.

In addition, the fixing hook provided on one end of the connecting metal fitting is fixed to one of the tread members, and the detachable hook provided on the other end of the connecting metal fitting can be inserted and removed into a hole made in the other tread member. It is also possible to insert it, but if you do this, the connecting fitting will be restrained by one of the tread members and will be difficult to move.
When inserting the detachable hook into the hole, it is necessary to bend the tread member considerably while passing the tip of the hook through the hole. However, in cold weather where the road surface freezes, the resin tread member may become hard, and the cold also makes your hands stiff, making it difficult to insert the hook into the small hole while bending the tread member.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to easily connect a connecting fitting used at a detachable connection point of a tread member to a tread member, to prevent the connecting fitting from being lost, and to provide a method for connecting the tread member. The object is to be able to function as both a hook and a hook for hanging a band.

[Means for solving problems]

In order to achieve the above object, the connecting fitting of the present invention is made by bending and molding a metal rod material, and is provided with a pair of left and right legs, and one end of one of the legs, and connects one of the above-mentioned tread members. A fixing hook is inserted into a hole formed at the end and fixed, and a fixing hook is provided at one end of the other leg and has a tip portion bent outward, and is opened at the connecting end of the other tread member through this tip portion. a detachable hook that is removably inserted into the hole and locked at the connecting end; The present invention is characterized in that it includes a band hooking portion that is tied to each other, and a reinforcing member that connects the pair of leg portions to each other in the vicinity of the hook.

[Effect]

Since the connecting fitting configured as described above is always attached to the tread member via the fixing hook provided on one of the legs, there is no risk of losing the connecting fitting. When mounting on a tire, the tread members can be connected by a simple operation of inserting the detachable hook provided on the other leg into the hole in the tread member. Since this connecting fitting is integrally provided with a band hooking part on the other end side of the leg, a rubber band can be hooked using this hooking part.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 5. Figure 2 shows the anti-slip device 10.
It shows a part of. This anti-slip device 10 is
A plurality of synthetic resin tread members 11 wound circumferentially around the outer periphery of the tire T, a first connecting fitting 14 for connecting the releasable connection points 12 of these tread members 11, and a non-separable connection member 14. It is configured to include a second connecting fitting 15 for connecting the parts.

The first connecting fitting 14 consists of a connecting fitting main body 16 formed by bending a metal rod material, and a reinforcing member 17. The connecting fitting main body 16 includes a pair of left and right leg portions 18 and 19 that are substantially parallel to each other. A fixing hook 21 is provided at one end of one leg 18. As shown in FIGS. 1 and 4, the fixing hook 21 is formed into a substantially U-shape, and is inserted into a hole 23 formed in the connecting end 22 of one of the tread members and then crimped. is fixed to the connecting end 22 by.

At one end of the other leg 19, there is a detachable hook 2.
5 is provided. This hook 25 for taking off and taking off is
It can be inserted into and removed from a hole 27 formed in the connecting end 26 of the other tread member, and by inserting this detachable hook 25 into the hole 27, it can be locked to the connecting end 26. The distal end portion 28 of the detachable hook 25 is slightly bent outward as shown in FIG. 4 to facilitate insertion into the hole 27.

Further, on the other end side of the legs 18 and 19, a leg 1 is provided.
Hook-like band hooking parts 31 and 32 are provided with a connecting part 30 that connects the bands 8 and 19 to each other. The band hooking parts 31 and 32 are bent into a U-shape facing the hooks 21 and 25 so that the rubber band 34 can be hooked thereon.

The reinforcing member 17 of this embodiment is a connecting fitting main body 16
It is made by bending the same metal rod material used in the
It is fixed by winding it around 8 and 19 and caulking it. This reinforcing member 17 is located at the position p of the connecting portion 30.
(See FIG. 4) is located closer to the hooks 21 and 25. This reinforcing member 17 has leg parts 18,1
This prevents the interval between the numbers 9 and 9 from widening. Therefore, the reinforcing member 17 should be positioned as close to the hooks 21 as possible.
It is desirable to approach 25. The reinforcing member 17 is
It is not limited to the round bar shape as shown in the illustrated example, but may be a square bar shape or a plate, and the fixing means is not limited to caulking, but spot welding may also be employed. The connecting fitting main body 16 and the reinforcing member 17 include
Appropriate surface treatments are applied to each to increase wear resistance.

The second connecting fitting 15 is made of the same metal rod material as the first connecting fitting 14.
It is molded in almost the same shape as the metal fitting main body 16. That is, as shown in FIG. 5, the second connecting fitting 15 includes a pair of left and right leg portions 41 and 42. A pair of band hooks 4 bent into a U-shape are attached to one end of the legs 41 and 42.
3 and 44 are provided. On the other end sides of the legs 41, 42 are bent portions 46, 4 which are bent into a substantially U-shape.
7 are provided, and these bent portions 46, 47
are connected to each other by a connecting portion 48.

The second connecting fitting 15 configured in this way is
From the tip side of the band hooks 43 and 44,
It is fixed to the connecting ends 51, 52 by inserting it into the holes 53, 54 formed in the connecting ends 51, 52 of the tread member, and further inserting it to the bent portions 46, 47.

Therefore, as shown in FIG. 2, the first connecting fitting 14 has hooks 21 and 25 facing the outer circumferential side of the tire T, and the second connecting fitting 15 has hooks 43 and 44 facing the center side of the tire T. It is attached in the same position. In other words, the two types of connecting fittings 14 and 15 are attached to the tread member 11 in such a manner that their vertical relationship is reversed.

To attach the anti-slip device 10 to the tire T,
The tread member 11 is placed over the tire T with the detachable hook 25 of the first connecting fitting 14 being separated from the connecting end 26 of the tread member. Then, the connection is made by inserting the hook of a connecting fitting (not shown) into the hole at the connecting end located on the back side of the tire T, and then the detachable hook 25 is inserted into the hole 27 of the tread member as shown in FIG. The detachable hook 25 is connected to the connecting end 26 by inserting the detachable hook 25 into the connecting end 26. In this case, since the tip portion 28 of the detachable hook 25 faces outward, even if the fixing hook 21 is restrained by the connecting end 22 of one of the tread members 11, the detachable hook 25 can be smoothly inserted into the hole 27. can be inserted. The band hooking parts 31 and 32 of the first connecting fitting 14 and the band hooking hooks 43 and 44 of the second connecting fitting 15 are provided with well-known rubber bands 3.
4 is hooked. Each tread member 11 is pulled toward the center of the tire T by the rubber band 34.

According to the first connecting fitting 14, when mounting on the tire T, the tread member 11 can be connected by a simple operation of inserting the detachable hook 25 into the hole 27. On the other hand, when separating the tread member 11 from the connecting fitting 14, it is only necessary to remove the hook 25 from the hole 27, so that the separating operation can be easily performed.

Further, the first connecting fitting 14 is connected to the anti-slip device 10.
Since it can always be kept attached to the tread member 11 via the fixing hook 21 even during storage, there is no risk of the connecting fitting 14 being lost during storage. Since the metal fitting main body 16 of the first connecting metal fitting 14 and the second connecting metal fitting 15 may be molded into substantially the same shape, common parts can be used for the two types of connecting metal fittings 14 and 15.

Note that if the tip peripheral edge 25a of the detachable hook 25 is chamfered over the entire circumference like the first connecting fitting 14 shown in FIG. 6, the hook 25 can be easily inserted into the hole 27 of the tread member. Become. Also,
As shown in FIG. 7, the opening periphery 27a of the hole 27 in the tread member may be chamfered into a tapered shape to facilitate insertion of the hook 25.

Further, as shown in FIG. 8, a connecting fitting 14 is provided with a reinforcing portion 17' using a single metal rod.
It can also be molded. In this case, reinforcing portions 17' are created at the locations where the rods intersect. These intersections are secured together by suitable securing means such as spot welds 58.

(Effects of the invention) According to the invention, the connecting fittings provided at the detachable parts of the tread member can be easily attached to the tread member, and the connecting fittings are not easily deformed even when a large load is applied to the tread member. There is no risk of losing the connecting fitting, and the connecting fitting of the present invention can serve both as a hook for connecting the threads and as a hook for hooking the band.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing a part of the tread member and the connecting fittings, FIG. 2 is a side view showing a part of the anti-slip device, and FIG. 3 is a front view of the connecting fitting, FIG. 4 is a side view of the connecting fitting, and FIG. 5 is a perspective view showing the second connecting fitting. FIG. 6 is a sectional view showing a modification of the detachable hook, FIG. 7 is a sectional view showing a modification of the hole in the tread member, FIG. 8 is a perspective view showing another embodiment of the connecting fitting, and FIG. 9 is a sectional view showing a modification of the hole in the tread member. FIG. 2 is a side view of a part of an anti-slip device using a conventional connecting fitting. DESCRIPTION OF SYMBOLS 10... Anti-slip device, 11... Tread member, 14... First connecting fitting, 15... Second connecting fitting, 17... Reinforcing member, 18, 19... Leg, 21... For fixing Hook, 23... Hole in the tread member, 25... Hook for attaching and removing, 27... Hole in the tread member, 30... Connecting portion, 31, 32... Band hooking portion.

Claims (1)

[Claims for Utility Model Registration] A connecting fitting used to releasably connect mutually adjacent connecting ends of a synthetic resin tread member wrapped around a tire, which is made by bending and forming a metal rod material. A pair of left and right leg portions 18, 19, and one connecting end 2 of the tread member provided at one end side of one of the leg portions 18.
A fixing hook 21 is inserted into a hole 23 formed in the other leg 19 and fixed therein, and a fixing hook 21 is provided on one end side of the other leg 19 and has a tip portion 28 bent outward so that the other tread can be fixed through the tip portion 28. A detachable hook 2 is removably inserted into a hole 27 formed in a connecting end 26 of the member and is locked to the connecting end 26.
5, a band hooking part 31 located on the other end side of each of the leg parts 18, 19, bent so as to face the hooks 21, 25 side, and connected to each other by a connecting part 30; 32; and a reinforcing member 17 that connects the pair of legs 18, 19 to each other in the vicinity of the hooks 21, 25.