JPH0345406A - Connection structure for non-slip unit in non-slip fixture for tire - Google Patents

Abstract

PURPOSE:To facilitate the replacement of a non-slip unit as well as to make positive connection in engagement by providing an engaging core for the end section of a non-slip unit, and concurrently interposing a connector which is engaged with both of the projected ends of the engaging core to the connecting member of the non-slip unit. CONSTITUTION:In a non-slip fixture, a plurality of non-slip units 1 provided for the tread of a tire is connected by a connecting member 2 via a plurality of connectors 10 provided for the side section of the tire. In this case, in order that the non-slip unit 1 is connected with the connector 10, one projected end section 5a in a engaging core 5 at the end section of the non-slip unit 1 is inserted into a space between both pole sections 12 in the widened space section 13 between both of the pole sections 12 of the connector 10. The end section of the non-slip unit 1 and the whole of the engaging core 5 are concurrently inserted into the space between both of the pole sections 12. Then, the end section of the non-slip unit 1 is moved in such a way as to be coupled in the parallel sections 12a at the side of an engaging section in a hook shape so that both of the projected end section 5a of the engaging core 5 are thereby engaged with the engaging section 11 in a hook form.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a connection structure for anti-slip bodies in anti-slip devices for tires used when a vehicle runs on a snow-covered road surface or an icy road surface.

[Conventional technology and problems to be solved] Recent years 1. Spiked tires, which are used to prevent cars from slipping when driving on snow-covered roads, have problems such as dust pollution, and there is a trend toward banning their use. is becoming increasingly used.

This type of anti-slip device for tires replaces the conventional metal tire chain and is used to extend across the tire tread for the purpose of making it easier to attach to the tire, making it lighter, and improving its anti-vibration properties. Anti-slip body as a grounding member,
This anti-slip body is made of a rubber material with good abrasion resistance reinforced with cords, and is connected to a pair of connecting members that circulate in an annular manner at the side of the tire, and are arranged in parallel at a required interval to form a ladder-like structure. has appeared.

The anti-slip body of this anti-slip tool comes into contact with the road surface and generates a frictional effect, so it is relatively prone to wear and damage.
It must be replaced with a new one depending on the degree of wear and necessity.

However, most of the connecting structures of the anti-slip bodies of conventional anti-slip tools have a structure that cannot be engaged or detached without using a jig such as pliers, or a structure that cannot be engaged or disengaged at all. It wasn't easy to replace.

In order to facilitate the replacement of this anti-slip body, a structure has been proposed in which the anti-slip body is removably connected to a connecting fitting with a connecting member (for example, Japanese Utility Model Application No. 63-7004 Public bulletin).

However, in the case of the above-mentioned proposed connection structure, engagement holes with the connection fittings are formed at both ends of the anti-slip body with openings on both sides,
The engaging portion of the connecting fitting is engaged with the engaging hole, and the end portion of the anti-slip body is constricted by the engaging hole. Therefore, the end structure of the non-slip body, especially the end structure of the reinforcing core material such as a cord, becomes complicated, making it difficult to mold and manufacture the non-slip body, and may be difficult to implement depending on the form of the non-slip body. Moreover, due to the constricted shape of the engagement hole, the reinforcing core material (cord) can only be placed at the center in the width direction, and there is also a problem in maintaining the strength of the anti-slip body itself.

In view of the above, the present invention provides a connection structure of a non-slip body to a connecting member, which has a simple structure and can be easily implemented without making the end structure of the non-slip body into a complicated shape such as a constricted shape. To provide an anti-slip body which can be engaged and detached with a simple operation and whose anti-slip body can be easily replaced.

[Means for Solving the Problems] The present invention provides an anti-slip body made of a rubber material or the like that can be spanned between both side surfaces of a tire along the tread surface, and a pair of connecting members that can go around annularly in the tire side portion. In anti-slip devices for tires that are connected and arranged in parallel at required intervals,
In order to solve the above problems, we decided to adopt the following configuration.

That is, the first aspect of the present invention is that an engaging core is disposed at the end of the anti-slip body, penetrating in the width direction and having both ends protruding with a predetermined length; A connector that engages with both protruding ends of the dowel is attached, and the connector is made by bending a rod of a required length approximately at the center, connecting the bent rods to a connecting member, and The bent end side portion is folded back into a hook shape to serve as an engaging portion with both protruding ends of the engaging core,
Furthermore, at least in the parallel portions on the side of the hook-shaped engaging portion of both bar portions, there is a gap approximately equal to or slightly larger than the width of the end of the non-slip body, and between the side bar portions including this parallel portion, the end of the non-slip body It is characterized by being formed so as to have a space through which the engaging core of the part can be pulled out.

In the above structure, the means for maintaining a space between the side rods of the connector through which the engaging core of the end of the non-slip body can be pulled out is a means for providing a space between the side rods of the connector through which the engaging core of the end of the non-slip body can be pulled out. The body end is bent so as to have a distance larger than the dimension from one side edge to the tip of the protruding end of the engagement core on the other side, and the non-slip body end is placed against the connector in this expanded space. It can be provided so that the engaging core can be pulled out by moving it laterally.

In addition to the above, a space is provided in which the engaging core can be pulled out by twisting the end of the anti-slip body at a required angle with respect to the connector in the parallel portions of the hook-like engaging portion side of both rod portions of the connector. It can also be configured to do so.

The present invention also provides a tire skid device similar to the above, in which a connector is coupled to an end of the skid body, and the connecting member has a support portion and an engagement end extending laterally from the end. A substantially T-shaped engagement fitting is attached to the connector, and the T-shaped engagement fitting is engaged and connected to a connector. The bent end portions are connected to the anti-slip body, and the bent end portions are folded back into a hook shape to form an engaging portion with the T-shaped engagement fitting, and at least the hook-like engagement portions of both rod portions are connected to the anti-slip body. The parallel part on the joint side has a gap that allows the support part of the T-shaped engagement fitting to be inserted, and the engagement end of the T-shaped engagement fitting can be pulled out between the side rod parts including this parallel part. It can also be configured to hold space.

[Function] According to the first connection structure of the present invention described above, the engagement core at the end of the anti-slip body is passed between the side rods from the back side of the connector, and both protruding ends are engaged in hook-like engagement. It is engaged and connected to the joint part.

In this engaged and connected state, the end of the anti-slip body is fitted between the parallel parts of both rods on the side of the hook-shaped engagement part, and excessive movement in the lateral direction is restricted, especially when the engagement center Unless the projecting end portion is pulled out from between the side rods toward the rear side, there is no fear that the projecting end portion will separate from the connecting metal fitting, and the above-mentioned engaged and connected state can be maintained satisfactorily.

When the anti-slip body is removed, the engaging core at the end of the anti-slip body is separated from the hook-shaped engaging part toward the connecting member, and is moved laterally in the space between the side bars, or twisted by the required angle. It can be easily removed by pulling out the engagement core from between the side rods.

That is, as in claim 2, both rod portions of the connector are continuous with the parallel portion on the side of the hook-shaped engaging portion, from one side edge of the anti-slip body to the tip of the protruding end of the engaging core on the other side. If the bend is formed to have a spacing greater than the dimension of
When the end of the anti-slip body is moved to the expanded space and shifted laterally with respect to the connector in the space, one protruding end of the engagement core can be pulled out from between the side rods without difficulty. , the anti-slip body can be removed from the connector.

When connecting the anti-slip body, contrary to the above, one protruding end of the engagement core is passed through the expanded space, and then the end of the anti-slip body and the engagement core are passed between the two frame parts. When the end portion is moved so as to fit into the parallel portion on the side of the hook-like engaging portion, both protruding ends of the engaging core engage with the hook-like engaging portion.

Further, as in claim 3, when the parallel portions of both rod portions of the connector on the side of the hook-shaped engaging portion are configured such that the engaging core can be extracted by twisting the end of the anti-slip body, By twisting the end of the anti-slip body by a required angle, it can be easily pulled out from one of the protruding ends of the engagement core, and the anti-slip body can be removed from the connector.

When the anti-slip body is connected, contrary to the above, after twisting the end of the anti-slip body and passing it between the two frame parts from one protruding end of the engaging core, When the portion is returned to its original untwisted state and moved toward the hook-like engaging portion, the protruding end portion engages with the engaging portion. Particularly in this case, unless the end of the anti-slip body is bent at a required angle as described above, there is no risk of the engagement core slipping out to the rear side, and the engagement state can be maintained well.

Therefore, in any of the above cases, the engaged state can be maintained well, and the anti-slip body can be easily engaged and disengaged from the connector.

Furthermore, in the connection structure of claim 4, the engagement end of the T-shaped engagement fitting attached to the connection member engages with the hook-like engagement portion of the connector coupled to the end of the anti-slip body. are connected. In this connected state, the support portion of the T-shaped engagement fitting is fitted into the parallel portion on the side of the hook-shaped retaining portion, and is maintained in a predetermined engaged and connected state. Then, the T-shaped engagement fitting is separated from the hook-shaped engagement portion, and similarly to the above, one of the engagement ends of the engagement core is moved laterally in the space between the two frame portions or twisted by a required angle. The anti-slip body can be easily removed by pulling it out from the section, and can be engaged by reversing the operation described above. Therefore, the engagement and disengagement operation for replacing the anti-slip body can be easily performed.

[Example] Next, embodiments of the present invention will be described based on the drawings.

In the embodiments shown in Figs. 1 to 5, (A) shows a tire slip prevention device, which is stretched along the tread surface between both sides of the tire (T) as shown in Fig. 5. A required number of anti-slip bodies (1) in the form of strips with a predetermined width are arranged in parallel at appropriate intervals, and each end of each anti-slip body (1) is long enough to be able to go around the tire side part in an annular manner. Connecting members (2) such as a pair of ropes or chains arranged in parallel with an interval equal to or more than the width of the tire (2) are connected to a connector (described later) (
1G) (10), and are connected in a ladder-like configuration.

As shown in FIG. 2, the anti-slip body (1) has a central region (3) having a length approximately the same as the tread width of the tire (T), and two end regions (4) (4) that follow this. Become.

At the ends of both end areas (4) (4), connecting engagement cores (5) made of solid rods or hollow rods that are provided through the width direction (5) extend the required length of both ends. It is arranged in a protruding shape, and usually a flexible piece that goes around the engaging cores (5) (5) at both ends, is folded back inward, and is spanned between the image body engaging cores (5) (5). Reinforced cord layer (6
) and a rubber material layer (7) with excellent abrasion resistance that covers at least the surface side thereof.

This anti-slip body (1) includes, for example, a reinforcing cord layer (6)
It is obtained by suspending the engaging cores (5) (5) at both ends, overlapping an unvulcanized rubber material on the surface side thereof, and molding this into a predetermined shape using a predetermined mold. In place of the rubber material layer (7), a synthetic resin material with a large coefficient of friction may be used. Further, in the central region of the anti-slip body (1), spike pins may be buried slightly protruding from the surface, if necessary.

The connector (lO) is made by bending a single rod such as a steel rod into a substantially U-shape, and folding the bent end back into a hook shape to engage the end of the anti-slip body (1). The protruding end of the core (5>
5a) Formed as an engaging part (11) for (5a), bipolar part (12) extending continuously downward from this hook-like engaging part (11) Both ends of (12) are connected to the connecting member (2). ) is coupled in place.

In particular, the two ribs (12) (12) of the connector (lO) mentioned above
is the parallel portion (1
2a) and (12a), the gap (S) is approximately the same as the width of the end of the anti-slip body (1), or is slightly larger to the extent that the protruding end (5a) (5a) does not come off from the engaging part (11). )
and this parallel part (12a) (12
In the part continuous to a), the distance (K) is larger than the dimension (L) from one side edge of the end of the anti-slip body (1) to the tip of the protruding end of the engagement core (5) on the other side. For example, it is bent in the shape of a crank so as to hold it in place, thereby creating a space between the two rod parts (12) through which the engagement core (5) at the end of the anti-slip body (1) can be pulled out. are doing.

The distance (K) between this expanded space (13) is the distance between the engagement core (5)
However, as shown in the figure, the length of the engaging part (5
) by displacing the end of the anti-slip body (1) laterally with respect to the connector (lO) in the expansion space (13), the engagement core (5>) is connected to both rods (
12) It is desirable to be able to pull it out from between (12). The portion of this distance (K) can also be bent into a curved shape.

(14) is a reinforcing bar suspended between the two pole parts (12) (12) in order to maintain and reinforce the distance between the two rod parts (12) (12).

In the case of this embodiment, the anti-slip body (1) is connected to the connector (lO
), both rods (12) of the connector (lO>)
(12) In the expanded space (13>) between the two rods (12) <12, one protruding end (5a>) of the engagement core (5) at the end of the anti-slip body (1) is inserted from the rear side. After passing the end of the non-slip body (1) and the entire engagement core (5> between the two rods (12), the non-slip body (1)
) The parallel part (12a) (12
All you have to do is move it so that it fits into the engaging core (5).
Both protruding ends (5a) (5a) of the hook-shaped engaging portion (1
1) is engaged and connected. In this engaged and connected state, the end of the anti-slip body (1) is connected to the parallel portion (12a) (
12a), excessive movement in the lateral direction is restricted, and the protruding end portion (5a) (5a) is maintained in a predetermined engaged and connected state without fear of coming off from the engaging portion (11). (
Figures 1 and 3).

When removing the non-slip body, remove the non-slip body (1).
is moved to the expanded space (13) so as to disengage the engaging core (5) from the engaging portion (11), and in the expanded space (13), When the engagement core (5) is moved in the opposite direction, one protruding end (5a) of the engaging core (5) can be pulled out from between the two rods (12) without difficulty (
(Fig. 4), the anti-slip body (1) can be easily removed from the connector (lO).

Therefore, the non-slip body (1) can be easily engaged and disengaged from the connector (10), and the non-slip body (1) can be easily replaced.

Furthermore, in the embodiment shown in FIG. 6, the hook-shaped engaging portions (
11) side spacing (S) (
12a) and the end of the non-slip body (1) to the connector (1o)
This figure shows a case in which the length is such that it has a space through which the alignment core (5) can be pulled out by arranging the plate at a required angle with respect to the plate.

That is, even in the case of this embodiment, the anti-slip body (
1) to the connector (lO), twist the end of the anti-slip body (1) to the required angle, and then insert the engaging core (5).
From one protruding end (5a) to both rod parts (12) (12)
(Fig. 7), then return the ends to their original untwisted state and move them toward the hook-shaped engaging portion (11). Both protruding ends of the engaging core (5) (5a) (5a) engages with the engaging portion (11). In particular, in this case, the engaging core (5
) from the hook-shaped engaging part (11) to both rod parts (12) (12
), the engaging core (5) can be pulled out along the connector (L).
Unless it is twisted by the required angle with respect to O), there is no danger of it coming out to the rear, and the predetermined connected state is maintained.

In addition, when removing the anti-slip body (1),
1) If the end portion is twisted at a required angle as shown in FIG. 7, it can be pulled out from one protruding end portion (5a) of the engaging core (5) without difficulty. Therefore, the connector (
1o) can be easily engaged and disengaged.

Note that in any of the above embodiments, the hook-shaped engaging portion (
11) and the parallel part (12a) carrying the interval (S)
All or part of (+21) is made of rubber or other bullet material (15
) of the engaging core <5> by covering or wrapping it with the engaging part (11
) It is desirable to provide resistance to separation from the device so that it does not easily separate.

For example, as shown by the chain line in FIG.
15> are provided on the parallel parts (12a) (12a), and the protruding ends (5a) (5a) of the engaging core (5>) are connected to the elastic material (
15) so that it can be engaged elastically against the As a means for providing resistance to the separation of the engagement core (5) from the engagement portion (11), the end portion of the anti-slip body (1) can elastically pass through the center portion of the hook-shaped engagement portion (11). to form, etc.
Various other implementations are possible.

Further, the protruding end portion (5a) (5a) of the engaging core (5>) may be bent in the direction of engagement with the hook-shaped engaging portion (11).

Furthermore, in the embodiment shown in FIG. 8, a connector (10) is connected to the end of the anti-slip body (1) as a connection structure of the anti-slip body (1) in the anti-slip device for tires similar to the above, On the other hand, the connecting member (2) is provided with a substantially T-shaped engagement fitting (20) having a support part (21) and engagement ends (22) extending laterally from the end thereof. , shows the case where the T-shaped engagement fitting (20) is engaged and connected to the connector (IO).

The connector (lO) of this embodiment is made by bending a rod of the required length approximately at the center, and folding the bent end portion back into a hook shape to form the T-shaped engagement ring. It is formed as an engaging part (11) with the tool (20>), and both bent rod parts (12) (12) are connected to the end of the anti-slip body (1). As a means, a pipe body (8) is provided at the end of the anti-slip body (1) in place of the above-mentioned retaining core (5) in the width direction, and the two rods (12) are bent. The bent end portion is fitted into this pipe body (8).The reinforcing cord layer (6>) of the anti-slip body (1>) is wound around this pipe body (8) and suspended.

Further, the rod portions (12) (12) have at least parallel portions (12a) (12) on the side of the hook-shaped engaging portion (11).
In a), the interval that allows the support part (21) of the T-shaped engagement fitting (20) to be fitted, that is, the interval ( Sl))
and this parallel part (12a) (12
It is formed so as to have a space between both rod parts (12) (12) including a) through which the image body mating end (22) (22) of the T-shaped engagement fitting (20) can be pulled out. . As a means for this, the parallel portion (12a) on the side of the hook-shaped engaging portion (11)
The distance (Kl) between the parts continuous from (12a) is the dimension (Ll) from the - side of the support part (21) of the T-shaped engagement fitting (20) to the tip of the engagement end part (22) on the other side. ) so that the engaging ends (22) (22) of the T-shaped engaging fitting (20) can be pulled out through the expanded space (13).

Further, the parallel portion (j2a) (12a) is formed into a space through which both rod portions (12) (12) can be inserted by twisting the T-shaped engagement fitting (20), similar to the embodiment shown in FIG. It may be configured to hold.

Also in the connection structure of this embodiment, the hook-shaped engaging portion (1
The engagement ends (22) (22) of the T-shaped engagement fitting (20) attached to the connection member (2) engage with the connection member (1) to maintain a predetermined connection state. At this time, the T-shaped engagement metal tool 2
0> is held in a predetermined engagement and connection state in a state in which the support portion (21) is fitted into the parallel portion (12a) (12a) on the side of the hook-shaped engagement portion (11).

Then, the T-shaped engagement tool (20) is connected to the hook-shaped engagement portion (
11), and both rods (12〉(12
The non-slip body can be removed from one engaging end (22) by moving it laterally relative to the connector (lO) in the expansion space (13) between can be easily removed, and can be engaged by the reverse operation to that described above.Therefore, the engagement and disengagement operation for replacing the anti-slip body (1) can be easily performed.

In addition, also in the case of this embodiment, the hook-shaped engaging portion (11)
It is desirable to provide a reasonable amount of resistance to disengagement of the engaging end (22) (22) from the holder.

[Effects of the Invention] As described above, according to the first connection structure of the present invention, it is possible to perform a simple operation, for example, by displacing the end portion of the non-slip body on which the engaging core is arranged laterally with respect to the hook fitting, or Since it can be engaged and disengaged by a simple twisting operation, the anti-slip body can be easily replaced if necessary, such as when the anti-slip body is worn out or damaged. Moreover, in the engaged and connected state, the engagement will not come off unless the above-mentioned operation is performed, and the engaged and connected state can be maintained satisfactorily.

In addition, the structure is simple and can be easily implemented in various forms of anti-slip devices.In particular, it is only necessary to provide an engaging core in the width direction at the end of the anti-slip body, and this reinforcing core can be used to reinforce cords, etc. It can also serve as the same part of the core material, making the non-slip body easy to manufacture, and there is no problem in maintaining the strength of the non-slip body itself.

Furthermore, even when a connector is connected to the anti-slip body and a T-shaped engagement fitting is attached to the connecting member, it can be easily engaged and disengaged as described above, and the engaged and connected state can be maintained well, and the structure is also improved. It is simple and can be used in various forms, and can be easily manufactured and implemented.

[Brief explanation of drawings]

Fig. 1 is a side view of the main part of one embodiment of the present invention, Fig. 2 is a sectional view taken along line ■-■ from the previous time, Figs. 3 and 4 are perspective views showing the engaged and disengaged state, and Fig. 5 is FIG. 6 is a plan view of the non-slip device in its unfolded state, FIG. 6 is a partial side view of another embodiment, FIG. 7 is a perspective view of the previous engaged and disengaged state, and FIG. 8 is a diagram showing still another embodiment. FIG. (A)... Anti-slip tool, (1)... Anti-slip body, (2)... Connecting member, (5>... Engaging core, (IO)...・Connector, (11)...Hook-shaped engagement part, (12) (12)...Both rod parts, (12a) (
12a) - parallel part, (13) - extended space part, (2
0)...T-shaped engagement fitting, (21>...support part, (
22) (22)...Engagement end.

Claims (1)

[Scope of Claims] 1. A non-slip body that can be spanned between both side surfaces along the tire tread surface is connected to a pair of connecting members that can go around annularly at the tire side part and are arranged in parallel at a required interval. In the anti-slip tool for a tire, an engaging core is provided at an end of the anti-slip body, penetrating in the width direction and having both ends protruding with a predetermined length; A connector is attached to engage with both protruding ends of the connector, and the connector is made by bending a rod of a required length approximately at the center, connecting both bent rods to a connecting member, and
The part on the bent end side is folded back into a hook shape to form an engaging part with both protruding ends of the engaging core, and furthermore, at least the parallel part on the hook-shaped engaging part side of both rod parts has an anti-slip body end. The spacing is approximately the same as or slightly larger than the width of the bar, and a space is formed between both bar portions including the parallel portions through which the engaging core of the end of the anti-slip body can be pulled out. The connecting structure of the anti-slip body in the anti-slip body for tires is characterized by: 2. From the dimension from one edge of the end of the anti-slip body to the tip of the protruding end of the engagement core on the other side in the part where both the rods of the connector are continuous with the parallel part on the side of the hook-shaped engagement part. According to claim 1, the anti-slip body is bent so as to have a large gap therebetween, and is provided so that the engaging core can be pulled out by moving the end of the non-slip body laterally with respect to the connector in this expanded space. The connection structure of the anti-slip body in the anti-slip body for tires. 3. Parallel portions on the hook-like engaging portion side of both rod portions of the connector are extended so as to have a space through which the engaging core can be pulled out by twisting the end of the non-slip body at a required angle with respect to the connector. A connection structure of the anti-slip body in the anti-slip tool for a tire according to claim 1. 4. A tire in which an anti-slip body made of a rubber material or the like that can be stretched between both side surfaces along the tire tread surface is connected to a pair of connecting members that can go around in a circular shape at the tire side part and are arranged in parallel at a required interval. In the anti-slip tool, a connector is coupled to an end of the anti-slip body, and the connecting member has a substantially T-shaped member having a supporting portion and an engaging end extending laterally from the end. An engaging fitting is attached, and the T-shaped engaging fitting is engaged and connected to a connector, and the connector is made by bending a rod of a required length approximately at the center, and sliding the bent rods. In addition to being connected to the stopper, the bent end portion is folded back into a hook shape to form an engaging portion with the T-shaped engaging fitting, and furthermore, at least the parallel portions of both rod portions on the hook-shaped engaging portion side It is formed to have a space that allows the support part of the T-shaped engagement fitting to be inserted therein, and a space that allows the engagement end of the T-shaped engagement fitting to be pulled out between both rod parts including the parallel portions. A connection structure of a non-slip body in a non-slip device for a tire, characterized in that: