JPH04224406A - Tire skidproof device - Google Patents

Abstract

PURPOSE:To reduce the labor and time for mounting and removal by forming a drawout part of a front and a rear tying rope for a skidproof body so as to be continuous in a single piece, forming a loop for tying operation, and thereby elongating and shrinking the front and rear tying ropes through operation on the loop part from the tire front side. CONSTITUTION:To mount a skidproof body 1 to a tire A, first a loop part 7 is intruded, and a front and a rear tying rope 2, 2' - especially the latter 2' - are loosened to a dimension as exceeding the dia. of the tire A, and then the stopper body 1 and the rear tying rope 2' are wound on the tire A. An operation is made on the loop part 7 to draw out the drawout part of the rear tying rope 2' to the front side in tire width direction and fastened, and the rope 2' is tightened. Then the drawout part of the front side tying rope 2 is drawn out to the front side and fastened. The loop part 7 is detained with a slack stopper 8, and the ropes 2, 2' are held in the tight condition. These mounting operations can be done all from the tire front side substantially.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire anti-slip device that is easy to install and remove.

0002

[Prior Art] Conventionally, a tire slip prevention device includes a metal or non-metallic tread portion wrapped around the tread surface of a tire, and a side wall on the front side of the tire connected to one side of the tread portion. It consists of a string-like body such as a chain or rope placed on the tread surface, and a string-like body such as a chain or rope connected to the other side of the tread surface and placed on the sidewall surface on the back side of the tire. .

FIG. 8 shows a net-type device as an example of a conventional non-metallic tire slip prevention device, in which a back rope b and a front rope or rubber band c are attached to both ends of the net body a in the tire width direction. They are connected via fittings d and e, with the front rope or rubber band c being locked to the fitting e, and the back rope b being locked to the fitting d.

0004

[Problems to be Solved by the Invention] According to the conventional device, as described above, the front side and the back side are separated with the net body in the middle, so when installing it on a tire, the tread surface is placed close to the tread of the tire. After winding it around the surface, the hook part at one end of the back rope must first be locked to the looped part at the other end, and then the front rope or rubber band must be locked, which requires a lot of effort and time to attach. It takes. Especially when connecting the rear side, since the tires are attached to the vehicle, you need to push the device inward and then use your hands or intuition to engage the hook, or by moving a part of your body under the vehicle. They often have to stop, stain their clothes, and have to bend over or lie down for long periods of time, which can lead to physical fatigue. The same operations as those for mounting are required for attachment and detachment, making attachment and detachment extremely difficult.

[0005]

[Means for Solving the Problems] The present invention provides an anti-slip body that is wrapped around the tread surface of the outer circumference of a tire, and a non-slip body that is connected to one side of the body in the width direction of the tire and that is wrapped around the sidewall surface on the front side of the tire. In a tire slip prevention device comprising a front side tightening rope arranged and a back side tightening rope connected to the other side of the main body in the tire width direction and arranged around the sidewall surface on the back side of the tire, The rope is one continuous rope, and a front side connector and a back side connector are arranged on the circumferential line of the rope, and the back side tightening rope is fixed to the back side connector at one end side free end, and the other end side is fixed to the back side connector at one end side free end. After going around the back sidewall surface from the fixed part as a starting point and returning to the connector, it passes freely through the connector, crosses the tire tread part, and then freely passes through the front connector to the front side in the tire width direction. On the other hand, the front side tightening rope is fixed to the front side connector at one free end, and the other end starts from the fixed part on the one end side and goes around the front side wall surface and returns to the connector. , a tire slip prevention device characterized in that the connector freely passes through the connector and is pulled out to the front side in the width direction of the tire, and the front and back tightening ropes are pulled out as one continuous rope to form a loop for tightening operation. Related to equipment.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As is clear from FIGS. 1 and 2 showing how it is installed on a tire A, the device of the present invention includes an anti-slip body 1 that is wound around and attached to the tread surface of the tire A, and a tire width of the body 1. A front tightening rope 2 connected to one side of the tire direction and arranged on the sidewall surface B on the front side of the tire, and the main body 1
A back side tightening rope 2' connected to the other side in the width direction of the tire and disposed on the sidewall surface B' on the back side of the tire is included as a component.

The anti-slip tool main body 1 is made of a non-metallic elastic body, and may be either a net type or a ladder type, and is usually divided into a plurality of pieces as shown in FIGS. It may be consecutive.

The tightening ropes 2, 2' may be made of metal such as steel wire or piano wire, or may be made of non-metal such as synthetic fiber or natural fiber. Further, the cross-sectional shape is not particularly limited, and a circular cross-sectional shape or a cross-sectional shape close to this is suitable because it is easy to handle.

On both the front and back sides of the tire A in the width direction, the anti-slip device main body 1 is connected to the tightening ropes 2, 2' by conventional means, for example, by using hook fittings 3. An example of the hook metal fitting 3 is shown in FIG. 3, and the metal fitting 3 has a hook portion 3a on one end side that is locked into the locking hole 1a on the edge of the main body 1, and a split portion for rope insertion on the other end side. Each of them is provided with an annular portion 3b. As shown in Fig. 3, the tightening rope 2 or 2' is freely inserted through the split ring part 3b, and can be unhooked from the rope by pushing and spreading the split part 3b' against the retaining spring. ing. A plurality of hook fittings 3 are applied as one set on one side in the tire width direction, and one set 16 is shown in the figure.
The case where the pieces are arranged at equal intervals is shown.

In order to maintain the arrangement spacing of the hook fittings 3, a spacing pipe 4 is applied within each spacing, and the pipe 4
Like the split ring portion 3b of the hook fitting 3, it is freely inserted through the tightening rope 2 or 2'. This inserted state is shown enlarged in FIG. The material of the pipe 4 is not particularly limited, and for example, rubber or plastic is suitable. Application of the pipe 4 is not necessarily required, and may be omitted depending on the case.

[0012] In the present invention, in the tire slip prevention device having such a structure, the front and back tightening ropes 2, 2' are continuous into one. In addition, on the circuit line of the ropes 2 and 2', connectors 5 and 6 are installed on the front and back sides of the ropes 2 and 2', respectively, in order to make it possible to tighten and loosen the ropes 2 and 2' from the front side. is located.

As shown in FIG. 5, the back side connector 6 has a connection part 6a on one end side to the free end of one end side of the back side tightening rope 2', and has an intermediate branch part 6b on the other end side from the other end. It has a through hole 6c for the insertion of a rope, which opens toward the front side in the width direction of the tire. As shown in FIG. 2, the connector 6 is disposed between the adjacent divided parts 1A and 1B of the main body 1, and functions as a spacer in this part, so the application of the spacer pipe 4 to this part is omitted. ing.

As shown in FIG. 5, the front connector 5 has a connection part 5a to one free end of the front rope 2 at one end, and an intermediate front branch part 5b from the other end to the other end. It has a first through hole 5c for the insertion of a rope, which opens toward the front side in the width direction of the tire. Further, a second through hole 5d for rope insertion opens from the end face of the intermediate back side branch part 5e to the front side in the tire width direction via the front side branch part 5b, and this second through hole 5d opens from the end surface of the intermediate back side branch part 5e to the front side in the tire width direction. It may be gathered together with the through hole 5c. As shown in FIG. 1, the connector 5 is placed on the front side at the same position as the connector 6, and the spacing pipe 4 is not applied to this part as on the back side.

As is clear from FIGS. 2 and 5, one free end of the back side rope 2' is connected to the connection part 6a at one end of the back side connector 6, and the other end is connected to the connection part 6a at one end of the back side connector 6.
After going around the back side wall surface B' while alternately freely passing through the split ring part 3b of the hook fitting 3 and the space holding pipe 4 from the starting point, it passes through the through hole 6c on the other end side of the connector 6. It is pulled out to the front side in the tire width direction, further crosses the tread portion A1 of the tire A from here, and is then pulled out to the front side in the tire width direction through the second through hole 5d of the front side connector 5. As shown in Figure 2, the tread portion A1
A protective pipe 16 is freely placed over the rope portion that crosses the rope.

On the other hand, as shown in FIGS. 1 and 5, the front side tightening rope 2 is connected at one free end to the connection part 5a at one end of the front side connector 5, and the other end is connected to the connection part 5a at one end of the front side connector 5. After passing around the front side wall surface B while alternately freely passing through the split ring part 3b of the hook fitting 3 and the inside of the spacing pipe 4, the first through hole 5c on the other end side of the connector 5 is set as a starting point. It is pulled out to the front side in the width direction of the tire.

[0017] Pull-out portion 2 of front and back tightening ropes 2 and 2'
A and 2'A are connected together to form a loop portion 7 for tightening operation. The folded portion 7a of the loop portion 7 can be constructed from a spring member if necessary. In order to prevent the folded portion 7a of the loop portion 7 from being drawn into the gathering portion 5f of the first through hole 5c and the second through hole 5d, a stopper hardware 17 can be provided at the entrance and exit of the gathering portion 5f.

[0018] Pull-out parts 2A, 2 constituting the loop part 7
The length of 'A' is such that by loosening the ropes 2, 2' from the tightened state shown in FIGS. 1 and 2, it is possible to remove the front and back tightening ropes 2, 2', especially the back side tightening rope 2', from the tire A. The dimensions are set as follows.

A locking device 8 is provided to secure the loop portion 7 in a tightened state. As shown in FIG. 1, the locking device 8 includes a holding base 9, which connects the holding pipe 4 on the front tightening rope 2 and the connector 5 through a plurality of radially extending support arms 10, for example, four support arms 10. It is supported by 4 points. The support structure for the connector 5 is shown enlarged in FIG.

The holding base 9 has a cover that fits into the base 9, and inside thereof, a plurality of hooks 12 are arranged in rows at predetermined intervals in the direction in which the loop portion 7 is pulled out. The loop portion 7 is secured to one hook portion 12 in a tightened state.

[0021] As the loosening preventer, a structure capable of tightening as shown in Fig. 7 can be used. Various types of locking locks that can be tightened have already been proposed, and various known tightening type locking locks can be applied. The loosening stopper 8' shown in FIG. 7 includes a center arm 9' as a holding base, and a rope tightening lever 11 attached to the arm 9' so as to be rotatable about a base end pivot 10'. ', and a stopper fitting 12' for restraining the lever 9' in the tightened position, and the arm 9' and lever 11' have locking grooves 13' and 14' for locking the rope. A plurality of stopper fittings 12' are provided with springs 15' for maintaining the restrained state.

When mounting on tire A, after loosening the front and back tightening ropes 2, 2', especially the back tightening rope 2', to a size exceeding the diameter of tire A by pushing the loop part 7. The rope 2' and the anti-slip body 1 connected thereto are wound around the tire A. Next, by operating the loop part 7 and first pulling out and tightening the pull-out part 2'A of the back side tightening rope 2' toward the front side in the tire width direction, the rope 2' is brought into a tightened state as shown in FIG. . Next, by pulling out the pull-out portion 2A of the front tightening rope 2 in the same direction and tightening it, the rope 2 is tightened as shown in FIG.
Tighten as shown in . In this state, the loop portion 7 is locked to the locking device 8, and the ropes 2, 2' are restrained in a tightened state, thereby completing the attachment. Substantially all of this mounting operation may be performed from the front side of the tire.

On the other hand, when attaching and detaching, first remove the loop part 7 from the loosening stopper 8, and then operate the loop part 7 so that the pull-out part 2'A of the back side tightening rope 2' is connected to the front and back connectors 5.
, 6 to the back side of the tire. By this feeding, the back side tightening rope 2' is released from the tightened state and extends to a dimension exceeding the tire diameter, so that the tightening rope 2' can be taken out to the front side of the tire together with the anti-slip main body 1 connected thereto. Similar to the mounting operation, such an operation for attaching and detaching the tire may be performed from the front side of the tire.

[0024]

[Effects of the Invention] According to the device of the present invention, attachment and detachment to a tire can be achieved by operating the loop portion from the front side of the tire and expanding and contracting the front and back tightening ropes, which reduces the labor and time required for attachment and detachment. can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the front side of a tire showing how it is attached to a tire in an embodiment of the present invention.

FIG. 2 is a perspective view of the back side of the tire.

FIG. 3 is an explanatory diagram showing how the hook metal fitting is used.

FIG. 4 is a sectional view showing how the rope is inserted into the spacing pipe.

FIG. 5 is a configuration diagram of front and back tightening ropes.

FIG. 6 is a perspective view showing how the holding base and the front connector are connected.

FIG. 7 is an explanatory diagram showing a modified example of the locking mechanism and its operating procedure.

FIG. 8 is an overall schematic diagram showing an example of a conventional device.

[Explanation of symbols]

1. Anti-slip body 2 Front side tightening rope 2′　Back side tightening rope 3 Hook metal fittings 4 Spacing pipe 5 Front side connector 6　Back side connector 7 Loop part 8. Loosening prevention

Claims (1)

[Claims] 1. A non-slip main body that is wound around the tread surface of the outer circumference of the tire, a front tightening rope connected to one side of the main body in the width direction of the tire and arranged around the sidewall surface on the front side of the tire, and the same. In a tire slip prevention device comprising a back tightening rope connected to the other side of the main body in the tire width direction and disposed around the sidewall surface on the back side of the tire, the front and back tightening ropes are continuous into one and A front side connector and a back side connector are arranged on the circumferential line of the rope, and the back side tightening rope is fixed to the back side connector at one free end, and the other end is connected to the back side starting from the fixed part on the one end side. After going around the wall surface and returning to the connector, it freely passes through the connector, crosses the tire tread, and then freely passes through the front connector and is pulled out to the front side in the tire width direction, while the front tightening rope is fixed to the front connector at the free end on one end, and the other end starts from the fixed part on the one end, goes around the front side wall surface, returns to the connector, and then freely passes through the connector. A tire slip prevention device characterized in that the front and back tightening ropes are pulled out to the front side in the width direction of the tire, and the pulled-out portions of the front and back tightening ropes are continuous to form a loop for tightening operation.