JPH0129722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an anti-slip tire chain, and particularly relates to an anti-slip tire chain, and more particularly, when it is mounted on a tire, inner and outer holders that come into contact with the inner and outer sides of the tire, and a contact surface between the holders are provided. and a chain network extending over an area and rotatably connected to the inner holder, the inner holder being a C-shaped ring formed such that both ends thereof are spaced apart and facing each other, and the inner holder A tension strand for tensioning the inner retainer is bridged between the ends of the tool, and the free end of the tension strand extends beyond the contact patch area of the tire to the outer side between the ends of the inner retainer. The present invention relates to an anti-slip tire chain that is deflected to extend to a retainer.

An anti-slip tire chain of the type described above is known from German Offenlegungsschrift No. 2556115. In this prior art, the protrusion for hooking and deflecting the tension strand that tensions the inner retainer is
They are located at both ends of the C-shaped inner holder. However, since the protrusion is integrated with the inner holder, the tension strand or the chain part or the outer holder can be used to hold the inner holder in the area of connection with the tension strand before and during the mounting of the chain on the tire. Unexpected twisting of the ingredients is likely to occur. This drawback makes it difficult to install the chain because it requires untwisting work when installing the chain.

It is therefore an object of the present invention to maintain the tension strands of the inner holder even when the connection area of the tension strands, including the aforementioned deflection area, is displaced relative to the inner holder and the chain network of the contact area is turned inside out. It is an object of the present invention to provide an anti-slip tire chain of the above-mentioned type that does not cause problems due to torsion in the connection and deflection areas.

This object is achieved according to the invention by providing the end of the inner holder with a connecting piece which is rotatable through 360 degrees relative to the longitudinal axis of the inner holder.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be explained in detail with reference to the accompanying drawings, which show preferred embodiments of the invention.

As shown in FIG. 1, the inner holder 1 holds a chain network 2 extending between the inner holder 1 and an outer holder 3 formed by endless side chains. The inner holder 1 is formed of a resilient steel C-shaped ring having a certain rigidity, and pivot pins 14 and 15 are provided at each of its opposing ends. . Both ends of the tension strand 8 are connected to the connecting pieces 4 and 5, respectively, in a portion that is bridged between both ends of the inner holder 1. The connecting pieces 4 and 5 are rotatably connected to the pivot pins 14 and 15, respectively, and are attached to the inner holder 1 so as to be rotatable through 360 degrees with respect to the longitudinal axis thereof. A deflection device 7 for deflecting the tension strand 8 at one end side of the inner holder 1 is formed by a sleeve through which the tension strand 8 is slidably inserted, and connected to a connecting piece via several chain rings 6. It is connected to 4. The connecting piece 5 is provided with a deflection pin 9 which deflects the tension strand 8 towards the deflection device 7 .

In order to make the coupling pieces 4, 5 fully rotatable, the sleeves 12, 13 are fitted with the corrugated ends 10, 11 of the steel C-ring forming the inner retainer 1.
is crimped to. The pivot pins 14, 15 of the connecting pieces 4, 5 are screwed into the sleeves 12, 13 or press-fitted in a similar manner.

As shown in FIGS. 1 and 2, each connecting piece 4, 5
are provided with protrusions 16 and 17, respectively. The protrusions 16, 17 are located at the inner ends of the chain strands 20, 21 at both ends in the circumferential direction of the chain network 2, and protrude into the inner sides of chain rings 18, 19 surrounding the pivot pins 14, 15.
In this way, the pivot pins 14, 15 hold the inner ends of the chain strands 20, 21,
The chain strands 20, 21 are fastened closely adjacent to both ends of the inner holder 1.

The connecting piece 5 has a base with a web 23 provided with a hole 24 into which a pivot pin 15 formed by a hexagon socket head bolt is inserted. In this way,
Each connecting piece 4, 5 is connected to the chain ring 18, 1.
9 and is rotatably connected to the pivot pin 15. Further, the web 23 and the end surfaces of the sleeves 12, 13 facing it are connected to the chain rings 18, 1 surrounding the pivot pins 14, 15.
9's lateral movement is restrained.

Needless to say, the connecting pieces 4 and 5 and the chain rings 18 and 19, which are rotatably mounted around the longitudinal axis of the inner holder 1, also include the chain ring 25 that connects the chain network to the inner holder 1. A rotational movement about the longitudinal axis of the inner holder 1 can be performed. Furthermore, the position of the chain ring 25 in the inner holder 1 is defined by a spacer 26 formed by direct injection molding into a plastic tube or steel C-ring forming the inner holder 1. There is.

In FIG. 3, parts corresponding to the anti-skid chain shown in FIGS. 1 and 2 are designated by the same reference numerals as in FIGS. 1 and 2.

In this second embodiment, the connecting pieces 27, 28
is used, and the chain strand 20,2
The chain rings at the inner ends of 1 are directly connected to these. For this connection, the connecting pieces 27, 2
8 is provided with brackets 29 and 30.
In the illustrated example, only one chain strand 20 is attached to the bracket 29, and two chain strands 21, 31 are connected to the bracket 30.

In the two embodiments described above, when the chain is expanded, the chain net 2 and the connecting pieces 4, 5 or 27, 28 in the ground area rotate to appropriate postures due to the weight of the chain net 2. The connecting pieces 4, 5 start rotating via the protrusions 16, 17, and the connecting pieces 27, 28 start rotating through the brackets 29, 30.
Start rotating through.

It goes without saying that a deflecting roller may be used instead of the deflecting pin 9.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an anti-slip chain according to the present invention, FIG. 2 is a partially enlarged view showing a connecting piece of the anti-slip chain shown in FIG. 1, and FIG. 3 is an inner retainer having a connecting piece according to a modified example. FIG. 3 is a perspective view of an anti-slip chain provided with a tool. 1: Inner holder, 2: Chain net, 3: Outer holder, 4, 5: Connecting piece, 8: Tension strand, 1
4, 15: Pivot pin, 18, 19: Chain ring, 20, 21: Chain strand, 2
3: Web.

Claims (1)

[Claims] 1. Inner and outer holders 1 and 3 that come into contact with the inner and outer sides of the tire when mounted on the tire;
It has a chain network 2 extending between the holders 1 and 3 over the ground contact area of the tire and rotatably connected to the inner holder 1, and the inner holder 1 has both ends separated and facing each other. A tension strand 8 is provided between both ends of the inner holder 1 to tension the inner holder 1.
is crosslinked and the free end of the tension strand 8 is
an anti-slip tire chain deflected between both ends of the inner holder 1 to extend beyond the contact patch area of the tire to the outer holder 3; is provided with pivot pins 14 and 15, and both ends of the portion of the tension strand 8 that is bridged between both ends of the inner holder 1 are connected to connection pieces 4 and 5, respectively, and the connection pieces 4 and 5 are The chain strands 20 and 21 at both ends of the chain network 2 in the circumferential direction are rotatably connected to the pivot pins 14 and 15, respectively, and can rotate 360 degrees with respect to the longitudinal axis of the inner holder 1. , are fastened closely adjacent to both ends of the inner holder 1, and each of the connecting pieces 4, 5, together with the chain rings 18, 19 at the inner ends of the chain strands 20, 21 at both ends in the circumferential direction, Pivot pin 1
1. An anti-slip tire chain characterized in that it has a base having a web 23 rotatably connected to wheels 4 and 15. 2. The anti-slip tire chain according to claim 1, wherein the pivot pins 14, 15 are formed of hexagon socket head bolts. 3. The anti-slip tire chain according to claim 1 or 2, wherein the pivot pins (14, 15) are held by sleeves (12, 13) crimped onto both ends of the inner holder (1), respectively. 4. The anti-slip tire chain according to claim 3, wherein both ends of the inner holder 1 are wavy at the portions where the sleeves 12 and 13 are located. 5 Chain strands 20, 2 at both ends in the circumferential direction
Chain rings 18 and 19 at the inner end of the chain ring 1 surround the pivot pins 14 and 15, respectively, and the pivot pins 14 and 15 serve to hold the inner ends of the chain strands 20 and 21 at both ends in the circumferential direction. An anti-slip tire chain according to any one of claims 1 to 4. 6 Protrusions 16 and 17 projecting into the insides of chain rings 18 and 19 at the inner ends of the chain strands 20 and 21 surrounding the pivot pins 14 and 15, respectively, on each of the connection pieces 4 and 5;
The anti-slip tire chain according to claim 5, wherein the anti-slip tire chain is provided with: 7. Claims in which the web and the end surfaces of the sleeves 12, 13 facing the web, respectively, restrain the lateral movement of the chain rings 18, 19 surrounding the pivot pins 14, 15, respectively. The anti-slip tire chain according to item 5 or 6. 8 inner and outer holders 1 and 3 that come into contact with the inner and outer sides of the tire when mounted on the tire;
It has a chain network 2 extending between the holders 1 and 3 over the ground contact area of the tire and rotatably connected to the inner holder 1, and the inner holder 1 has both ends separated and facing each other. A tension strand 8 is provided between both ends of the inner holder 1 to tension the inner holder 1.
is crosslinked and the free end of the tension strand 8 is
an anti-slip tire chain deflected between both ends of the inner holder 1 to extend beyond the contact patch area of the tire to the outer holder 3; is provided with pivot pins 14 and 15, and both ends of the portion of the tension strand 8 that is bridged between both ends of the inner holder 1 are connected to connection pieces 4 and 5, respectively, and the connection pieces 4 and 5 are a base having a web 23 rotatably connected to each of the pivot pins 14, 15 and rotatable through 360° with respect to the longitudinal axis of the inner holder 1; At least one bracket 29, 30 is provided, and the bracket is connected to the chain strand 2 at both ends in the circumferential direction.
Chain rings 18, 19 at the inner ends of 0, 21
An anti-slip tire chain that anchors the.