JPH0526514U - Tire non-slip device - Google Patents

Abstract

(57) [Summary] [Purpose] The whole is composed of a large number of anti-slip pieces to improve the wearability, and the anti-slip pieces are combined to suit any tire size. [Structure] An engaging arm 11 and an engaging element 12 are provided on the front and rear sides of the anti-slip piece 1 having a U-shaped cross section, an engaging arm 21 and an engaging element 22 are provided on the front and rear sides, and a locking arm 15 is provided on the lower side of the front side. Are provided respectively. The non-slip pieces 1 are joined by the engagement of the engagement arm 11 and the engagement element 12 and the engagement of the engagement arm 21 and the engagement element 22, and are temporarily fixed by the tightening ring 2 hung on the locking arm 15. After the connection, the final joint portion is joined by a joining fitting or the like. The engagement element 12 and the engagement element 22 are pivotally attached to the front side hanging walls 10 and 20, respectively, so that the engagement surfaces thereof always match the engagement arm 11 and the engagement element 12, respectively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a non-slip device for mounting on a tire when a vehicle such as an automobile runs on a snowy road or in a muddy road.

[0002]

[Prior Art]

 Conventionally, a so-called tire chain has been generally used as this type of anti-skid device.

However, as is well known, a tire chain is very troublesome to put on and take off, and it is easy to cut due to wear, and the crossing property is not always good. Above all, there is only one tire size for one tire chain. There was an inconvenience that it could not be adapted and lacked versatility.

On the other hand, various types of anti-skid devices replacing the conventional tire chains have been proposed in the past, and among them, known techniques considered to be related to the anti-skid device of the present invention are listed as follows. Become.

A large number of ladder-shaped anti-slip pieces made of an elastic body are preliminarily connected to each other in a strip shape via wires, and detachable members for endless connection are provided at both ends of the wires (for example, the actual open shovel). 63-96905). A tread of a tire is covered with a large number of plate-like anti-slip pieces that can be engaged with each other, and these are fixed by a plurality of arms extending radially from the axle of the tire (for example, JP-A-2-164607). .. A large number of anti-slip pieces having a U-shaped cross-section that hold the front and back sidewalls and tread of the tire and are fixed to an annular mounting member by arranging in an arch shape that covers the tire (for example, Japanese Utility Model Laid-Open No. 56-2567). Bulletin). A number of anti-slip pieces with a U-shaped cross section that hold the front and back sidewalls and treads of a tire are connected in advance in a strip shape so that they can be connected, and detachable members are provided at both ends for connecting endlessly. (For example, JP-A-61-157409, JP-A-61-115706, and JP-A-62-1403). It consists of a set of anti-slip pieces with a U-shaped cross-section that holds the front and back sidewalls of the tire and the tread. They are mounted, and after they are mounted, they are pulled toward the center of the tire with a tightening ring (for example, Japanese Patent Laid-Open No. 61-196808). It consists of a set of anti-slip pieces with a U-shaped cross section that holds the front and back sidewalls of the tire and the tread, and these anti-slip pieces are connected to the endless by pins so that they can be connected (for example, a 56-53606, 57-171904, 57-171904). It consists of a set of anti-slip pieces with a U-shaped cross section that holds the front and back sidewalls of the tire and the tread, and these anti-slip pieces are connected to the endless by a detachable connecting band (for example, Japanese Patent Publication No. 52- 33361).

[0006]

[Problems to be solved by the device]

 However, the above-mentioned conventional techniques have the following problems, respectively, and are not necessarily practical.

First, the anti-skid device described above is essentially similar to a conventional metal tire chain replaced with an elastic material, and like the tire chain, the entire device is twisted in a stored state before installation. There is a problem in wearability due to entanglement, and because the anti-slip pieces are not connected except via a wire, there was a risk that the distance between the anti-slip pieces would become indeterminate or slip during running. .. Further, in this device, since the anti-slip pieces are previously connected in a strip shape, there is still a problem that they can be adapted to only one tire size.

Next, regarding the above-mentioned anti-skid device, since this device only fixes the anti-slip piece on the front surface side of the tire, the rear surface side of the tire of the anti-slip piece floats up due to centrifugal force during traveling. There was a fear. Also in this device, since the anti-slip pieces are already connected in a band shape, the problem that they can be applied to only one tire size still remains.

Next, regarding the above-mentioned non-slip device, since this device preliminarily fixes an anti-slip piece to an annular mounting member in an arch shape, it can be folded or folded like other anti-slip devices. It was impossible to bend, and its size made it difficult to store when not attached. Further, in this device as well, since the anti-slip pieces are previously connected in a wheel shape, the problem that they can be applied to only one tire size still remains.

Next, regarding the above-mentioned non-slip device, since the anti-slip pieces are connected in a belt shape in advance in this device, there remains a problem that it can be applied to only one tire size. It was

On the other hand, in the above-mentioned anti-slip device, since the anti-slip pieces are not connected in this device, it is possible to adapt to a plurality of tire sizes by adjusting the interval and the number of the anti-slip pieces. Is possible. However, on the other hand, the anti-slip pieces are completely independent except that they are pulled toward the center of the tire by a common tightening ring, so the anti-slip pieces can be evenly arranged when mounted on the tire. In fact, it was impossible to swear, and the wheel balance was seriously disturbed, and the balance of the tire's ground contact could collapse and impair maneuverability.

Further, in the above-mentioned anti-slip device, since the anti-slip pieces are not connected in advance in this device, the length of the anti-slip device can be adjusted by increasing or decreasing the number of anti-slip pieces. However, the compatible tire size is limited to a multiple of the total length of the anti-slip pieces, and the compatible tire size is limited in the end. Further, in this invention, since the non-slip pieces are attached / detached by the pins, the attachment / detachment is substantially difficult. For example, the attachment / detachment by the pins on the back side of the tire is not possible unless the tire is removed from the vehicle. It was close to possible.

Further, in the case of the above-mentioned anti-slip device, in this device as well as the above-mentioned device, the anti-slip pieces are not connected in advance. Therefore, the length of the anti-slip device can be increased or decreased by increasing or decreasing the number of the anti-slip pieces. However, the applicable tire size is limited to a multiple of the total length of the non-slip pieces, and the applicable tire size is limited. Further, in the present invention, since the anti-slip pieces are attached / detached to / from each other by the connecting strips which are separate from the anti-slip pieces, the number of parts is unnecessarily increased, which may cause confusion at the installation site.

This invention is intended to provide a non-slip device that solves the problems of the prior art as described above, and in particular, it has a good fit and is a free-size slip suitable for all tire sizes. It was created with the intention of realizing a stopping device.

[0015]

[Means for Solving the Problems]

 The non-slip device of the present invention comprises a set of a non-slip piece 1 having a U-shaped cross section that holds the tread and the front and back sidewalls of the tire T by means of the front hanging wall 10, the back hanging wall 20, and the ceiling portion 30. In each of the anti-slip pieces 1, the front side hanging wall 10 is provided with the engaging arm 11 and the engaging element 12 pivotally attached to the front side hanging wall so as to be swingable, and the locking surface is provided on the ceiling. On the surface, a locking arm 15 directed toward the front side is provided. On the other hand, an engaging arm 21 that is compatible with the back side hanging wall 20 and an engaging element 22 that is pivotally attached to the front side hanging wall are attached to the front and rear. It is configured to be distributed. In this case, the relationship between the respective members is such that the engagement arms 11 and the engagement elements 12 of the anti-slip pieces 1 adjacent to each other and the engagement arms 21 and 22 are engaged with each other to form the first coupling means of the anti-slip pieces. Is set so that the anti-slip pieces 1 are attached to the respective locking arms 15 of the anti-slip pieces 1 endlessly attached to the tire T, and pulled by the tightening rings 2 that pull these toward the center of the tire. The second coupling means between them is used.

Further, the anti-slip device of the present invention comprises a set of the anti-slip pieces 1. In this case, all the anti-slip pieces are not configured to have the same total length, and the anti-slip pieces 1a having different total lengths are required therein. It may be mixed according to.

In the present invention, since it is difficult to join the pair of anti-slip pieces 1c and 1d, which are the final joining portions, during the assembly of the anti-slip pieces 1, only the engagement arm and the engaging element of these pieces are engaged. In this case, the front side hanging wall is provided by the connecting metal fitting 60, which does not adopt a coupling means by inserting the insertion arm and the insertion sheath, and has both ends as the engaging portions 65 and 68, and the length between both engaging portions can be expanded and contracted. It is realistic to connect only the sides.

In this case, the tightening ring 2 is used for temporary joining until the final joining portion is joined, and may be removed after the final joining portion is joined.

[0019]

[Action]

 Therefore, according to this invention, the anti-slip piece 1 embraces the front and back sidewalls of the tire T and the tread by the front side hanging wall 10, the back side hanging wall 20, and the ceiling portion 30, so that the ceiling portion 30 is the tread of the anti-slip piece. Becomes

The anti-slip pieces 1 are joined to the front side hanging walls 10 by engaging the engaging arm 11 with the adjacent engaging element 12, and at the same time, the engaging arm 21 is attached to the adjacent engaging element 22. By engaging the back side hanging walls 20 with each other, the non-slip pieces are sequentially connected with each other, and further tightened to the respective locking arms 15 of these endlessly connected anti-slip pieces. By straddling the ring 2, the anti-slip pieces are pulled and fixed toward the center of the tire.

In this case, since the engagement element 12 and the engagement element 22 are pivotally fixed to the front side hanging wall 10 and the back side hanging wall 20, respectively, depending on the size of the tire, the joining angle between the anti-slip pieces 1 may be different. Even if they are different, the engagement end surfaces of the engagement elements 12 and 22 always follow the engagement end surfaces of the engagement arms 11 and 21.

Finally, in the above anti-skid device, the anti-slip devices 1 are mixed in the anti-slip device 1a with different total lengths as needed, so that the length of the inner circumference of the anti-skid device is reduced. Since it can be set to a fine value that is not limited to a multiple of the total length of the retaining piece, it produces a free-size action that adapts to any tire size.

[0023]

【Example】

 FIG. 1 is a view showing an anti-slip piece 1 which constitutes an anti-slip device of the present invention (for convenience of illustration, the observation angle is divided into (A) and (B) here). The anti-slip piece 1 is formed by the front side hanging wall 10, the back side hanging wall 20, and the ceiling portion 30 into a U-shaped cross section for holding the front and back side walls of the tire T and the tread. In this embodiment, the duralumin is used. Although it is made of synthetic resin, it goes without saying that it may be made of synthetic resin as well as other metals.

FIG. 1A is a view showing a front side hanging wall 10. The front side hanging wall 10 is integrally provided with an engaging arm 11 whose front end is bent inward in a hook-like shape and is provided at the rear side. Is provided with an engaging element 12 adapted to this. In this case, the joining angle between the anti-slip pieces 1 differs depending on the size of the tire, and accordingly, a gap may be generated between the engaging end faces of the engaging arm and the engaging element, and these may wear. Therefore, here, the shaft 12 is pivotally fixed to the front hanging wall 10 so that the engagement end face of the engagement arm 12 always follows the engagement end face of the engagement arm 11. (See Fig. 2 for the follow-up state). Reference numeral 14 in the drawing is an escape window for the engagement arm 11. Reference numeral 15 in the drawing denotes a locking arm with which the tightening ring 2 is locked, and is provided below the front hanging wall 10 with the locking surface facing the ceiling side. Although the tightening ring 2 employs a spring in this embodiment, it goes without saying that other means such as an elastic wire may be used.

FIG. 1B is a view showing the back side hanging wall 20. The back side hanging wall 20 is integrally provided with an engaging arm 21 whose front end is bent inward like a hook, and is provided at the rear side. Is provided with an engaging element 22 adapted to this. Also in this case, the engaging element 22 is also pivotably fixed to the back side hanging wall 20 by the shaft 23. Reference numeral 24 in the figure is an escape window for the engagement arm 21. In this case, the engagement element 22 swings more than necessary, and if it does not match the engagement arm 21, it interferes with the engagement operation. Therefore, the engagement element 22 is brought into contact with the engagement element 22 to regulate its excessive swinging. The stopper pins 27a and 27b are arranged on the swing locus of the engaging element 22.

Next, although the ceiling portion 30 has a function of preventing slippage, in this embodiment, two tread plates 31, 31 are formed by providing a window in the center, and each tread plate is provided with a tread plate from the back side. The spike 33 is screwed through a spring washer (not shown) to expose the tip end from the surface. Therefore, in this embodiment, when the spike 33 is worn, it can be easily replaced. The above tread plates 31 and 31 are given a slight elevation angle in conformity with the outer circumference of the tire. For example, when the tire size changes drastically for ordinary cars and light cars, the ends contact the ground and become worn. May occur. Therefore, in this case, one tread plate should be used, or non-slip pieces for ordinary cars and light cars with different elevation angles should be provided to deal with them.

In mounting the anti-slip piece 1 on the tire T, first, the anti-slip pieces are connected from the upper part of the tire to the left and right, and when the both reach the ground contact surface, the tightening ring 2 is attached to each of the anti-slip pieces. The entire suspension is temporarily fixed to the locking arm 12 of one piece, and the vehicle is slightly moved back and forth to expose the remaining connecting portion and connect the last anti-slip piece (see FIGS. 4 and 5). In this case, when connecting the last anti-slip pieces 1c and 1d, it is necessary to pull the anti-slip pieces together against the elasticity of the tire T to engage them, but such work is difficult in reality. Therefore, only for these, the connecting means by the engagement of the engaging arm and the engaging element is not adopted, and both ends are configured as the engaging portions 65 and 68, and the length between both engaging portions can be freely expanded and contracted. Only the front side hanging wall side is connected by the connecting metal fitting 60.

7 and 8 are views showing the details of the connecting fitting 60. In this embodiment, the connecting metal fitting 60 is provided with a fulcrum of a lever 64 having one engaging portion 65 fixed to the other engaging portion 68, and the lever 64 can be fixed to the other engaging portion 68 in a prone state. By doing so, it is possible to expand and contract freely. In the figure, reference numeral 61 is a screw rod provided at one end of the engaging portion 65, and a fulcrum of the lever 64 is provided on a slide member 63 movable on the screw rod 61 by screwing a nut 62. Therefore, the connecting fitting 60 is expanded and contracted not only by the ups and downs of the lever 64 but also by the screw engagement of the nut 62. Reference numeral 66 in the drawing denotes an engaging arm for fixing the lever 64 to the engaging portion 68 in a prone state, and is provided at the end of the lever 64 so as to be freely movable. After the engagement arm 66 is engaged with the screw rod 61, the play of the engagement arm 66 is restricted by the urging force of the coil spring 67. Reference numeral 73 in the drawing denotes an engaging portion with the engaging fitting 65 provided on the anti-slip piece 1d side. Further, reference numeral 72 in the drawing denotes an engaging portion with an engaging fitting 65 provided on the anti-slip piece 1c side, and in this embodiment, an engaging element pivotally fixed to the anti-slip piece 1c by a shaft 71. 70 as an engagement window.

In the above-mentioned anti-slip piece 1, if anti-slip pieces 1a having different lengths are mixed as necessary as shown in FIG. 2, an effect of adapting to any tire size is produced.

Further, as shown in FIG. 6, if a backing plate 40 of a required thickness is detachably provided on the back side of the front side hanging wall 10 and the back side hanging wall 20 of the slip stopper piece 1 by means of a screw 41 or the like, the thickness can be increased. It is possible to freely set the width of the inside of the anti-slip piece by selecting different backing plates, and there is the effect of adapting to all tire sizes not only in diameter but also in width. In this case, it goes without saying that the backing plate 40 may be arranged only on either the front side hanging wall 10 or the back side hanging wall 20.

[0031]

[Effect of the device]

 The present invention having the above configuration has the following unique effects. The whole consists of a set of individual anti-slip pieces, and the anti-slip pieces are connected by the user as necessary. Therefore, by preparing one anti-slip piece of different total length, it can be applied to tires of all sizes. A free-size anti-slip device is realized. Therefore, it is not necessary to prepare a separate anti-skid device for each vehicle type, and neither the producer nor the seller needs to produce or prepare other kinds of products, which improves the production efficiency and inventory efficiency. The anti-slip pieces are connected to each other by using the engaging means by the engaging arm and the engaging element, so that the anti-slip device has very good wearability, and anyone can quickly attach the anti-skid device to the tire. In the above case, since the engaging element is pivotally fixed, even if the anti-slip pieces have different joining angles depending on the size of the tire, the engaging angle follows that and smooth engagement is realized. It The whole is composed of a set of individual anti-slip pieces, and the anti-slip pieces are connected by a user as needed, so that they can be easily stored when not attached. For the same reason, even if a part of the anti-skid device is damaged, the anti-slip device of that part only needs to be replaced, and the economical anti-skid device is realized due to the fact that the spikes can be replaced. .. When a flexible fitting is used for the final joining part, it can be joined with one touch.In this case, the anti-slip pieces connected endlessly are pulled in the shrinking direction by the fitting, so the tightening ring must be removed. However, a sufficient bond strength can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a non-slip piece. (A) shows the state observed from the front side hanging wall side, and (B) shows the state observed from the back side hanging wall side.

FIG. 2 is a front view showing a state in which the anti-slip pieces are connected to each other.

FIG. 3 is a side view with a part of the anti-slip piece cut away.

FIG. 4 is a front view of the entire tire showing a state in which the anti-slip pieces are connected to each other.

FIG. 5 is a rear view of the entire tire showing a state in which the anti-slip pieces are connected to each other.

FIG. 6 is a side view of another embodiment of the non-slip piece.

FIG. 7 is a perspective view of a coupling fitting and a slip stopper.

FIG. 8 is a partially cutaway bottom view of the coupling fitting and the slip stopper.

[Explanation of symbols]

 T Tire 1 Anti-slip piece 1a Anti-slip piece 1c (different length) Non-slip piece 1d (final connection part) Anti-slip piece 2 Tightening ring 2 Front hanging wall 11 Engaging arm 12 Engagement element 15 Locking arm 20 Back side hanging wall 21 Engaging arm 22 Engaging element 30 Ceiling part 33 Spike 60 Coupling metal fitting

Claims (7)

[Scope of utility model registration request] 1. A U-shaped cross section in which a front side wall (10) holds a front side wall of a tire, a back side hanging wall (20) holds the same back side wall, and a ceiling part (30) holds a tread. An engaging member (11) composed of a set of stopper pieces (1) and pivotally fixed to the front hanging wall (10) of each anti-slip piece (1) so as to be swingable with respect to the engaging arm (11) and the front hanging wall (10). The mats (12) are arranged in the front-rear direction, and the locking arms (15) with the locking surfaces facing the ceiling are provided on the surface, while the engaging arms (2) are provided on the back side hanging wall (20).
1) and an engaging element (22) which is pivotally attached to the hanging wall (20) on the back side, is provided by being distributed forward and backward, and the engaging arms (11, 12) of the adjacent anti-slip pieces (1) are provided. Engagement and engagement of the engaging arms (21, 22) serve as a first coupling means for the anti-slip pieces, and the locking arms (of the anti-slip pieces (1) mounted endlessly on the tire ( A non-slip device for a tire, characterized in that it has a tightening ring (2) that is stretched around 15) and pulled in the direction of the center of the tire to form a second coupling means for the non-slip pieces (1). 2. The swing range of the engagement element (22) of the back side hanging wall (20) is restricted by stopper pins (27a, 27b) arranged in the swing locus of the engagement element (22). The tire anti-slip device described. 3. The tire anti-skid device according to claim 1, wherein anti-slip pieces (1a) having different total lengths are prepared so that they can be selected from the group of anti-slip pieces (1). 4. The anti-skid tire according to claim 1, wherein a spike (33) is threadedly inserted from the rear surface of the ceiling portion (30) of the anti-slip piece (1) toward the front surface. apparatus. 5. A backing plate (40) is detachably provided on the back side of the hanging wall of the non-slip piece (1), and the width of the inside of the non-slip piece (1) can be varied depending on the presence or absence of the backing plate (40). The tire anti-skid device according to any one of claims 1 to 4. 6. Among the anti-slip pieces (1), only a pair of the anti-slip pieces (1c, 1d) which are the final joints, only the pair of anti-slip pieces (1c, 1d) are engaged with the engagement arm and the engagement element of the front side hanging wall, and the back side hanging wall. The front side depending on the connecting metal fitting (60), which does not adopt a coupling means by inserting the insertion arm and the insertion sheath, and has both ends as engaging portions (65, 68), and the length between both engaging portions can be expanded and contracted. The tire anti-skid device according to any one of claims 1 to 5, wherein only the wall side is connected. 7. A fulcrum of a lever (64) having one of the engaging portions (65) fixed thereto is provided on the other engaging portion (68), and the lever (64) is attached to the other engaging portion (68). The tire anti-skid device according to claim 6, wherein the connecting metal fitting (60) is used as a means for expanding and contracting by fixing it in a prone state.