JP4738093B2 - Tire anti-slip device - Google Patents

Description

  The present invention relates to an anti-skid device for a tire, and more particularly to an anti-skid device that can securely tighten an anti-skid device with a small number of operations.

  In order to prevent a slip accident when traveling on a snowy road or a frozen road, a non-slip device is attached to the tire.

  When mounting this anti-skid device on a tire, put the main body part that demonstrates the anti-slip function on the tire tread, and connect both ends of the inner ring side and outer ring side of the main body part to each other with a joint hook or lock mechanism to make it endless None, the outer ring side of the main body portion was tightened with an elastic band to bring the main body portion into close contact with the tire tread. However, the work of spanning the elastic band was complicated.

  On the other hand, the tips of the two arms attached to both ends of the rotating member are respectively connected to two parts (hereinafter referred to as “drawing ends”) whose distance should be reduced on the tire outer ring side of the main body portion of the anti-slip device. The anti-skid device is tightened by rotating the rotating member around the center of the rotating member so that the ends of both arms are pulled toward each other and the distance between the two pulling ends on the tire outer ring side is reduced. Tools have been proposed (see Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, etc.).

Japanese Utility Model Publication No. 48-39282 JP-A-2-48204 JP-A-3-16813 Japanese Patent Laid-Open No. 9-109627

  However, in order to obtain a sufficient tightening force, the tightening tools described in the above-mentioned Patent Documents 1 to 4 need to be formed with drawing end portions at a large number of locations on the tire outer ring side, and provided with a rotating member there. There was a problem that the operation of was necessary and troublesome.

  In view of such problems, an object of the present invention is to provide a tire anti-skid device that can securely tighten the anti-skid device with a small number of operations.

  Therefore, the tire anti-slip device according to the present invention covers a tire with a main body portion that exhibits an anti-slip function, connects the main body portion in an endless manner, and is mutually connected in the tire circumferential direction on the tire outer ring side of the main body portion. An anti-skid device for a tire in which the main body portion is brought into close contact with the tire by pulling each other between the pulling end portions separated from each other and tightening the tire outer ring side of the main body portion. The two pulling end portions spaced apart from each other are provided at two positions of the main body portion facing each other in the tire radial direction when covered, and hook receivers are formed at the four pulling end portions, respectively. The hook receiver provided at the distal end of the string member of the fastener is hooked on the hook receiver at the separated drawing end portion, and the portion following the distal end of the string member extends in the tire circumferential direction and then extends in the tire radial direction. Occasionally It is bent and extends toward the center side of the side surface on the tire outer ring side, and the rear end side of the string member is pulled in the tire radial direction by the tightening tool, so that the spaced-apart pulling end portions are mutually connected in the tire circumferential direction. It is characterized by being attracted to.

  One of the features of the present invention is that the pulling end portions spaced apart from each other are provided at two locations in the tire radial direction of the main body portion of the anti-slip device, hooks are hooked on the respective pulling end portions, and the strings connected to the hooks After extending the material in the tire circumferential direction, bending it in the tire radial direction, pulling the string material in the tire radial direction with a tightening tool, pulling the separated pulling end, and tightening the tire outer ring side of the main body part It is in.

  As a result, the two pulling end portions of the main body portion of the anti-slip device positioned in the tire radial direction can be pulled by pulling the string member in the tire radial direction with the tightening tool, There is no need to perform the operation of pulling the pulling end portion at a plurality of positions unlike a tightening tool, and the anti-skid device can be securely tightened with few operations.

  The tightening tool may be of any type as long as it can pull the string member in the tire radial direction and draw the pulling end, and for example, a rotary operation type or a lever operation type can be adopted.

That is, the tightening tool of the tire anti-skid device according to the present invention is such that the main body portion that exhibits the anti-slip function draws the main body by pulling between the pulling end portions spaced apart from each other in the tire circumferential direction on the tire outer ring side. In a tire anti-skid device tightening tool that tightens the tire outer ring side of the portion, the base extends in the tire radial direction through the center of the side surface on the tire outer ring side, and rotates around the support shaft in the longitudinal center of the base The freely supported rotating member and one end of each rotating member are attached to both ends of the rotating member , and the other end approaches each other by rotating the rotating member around the support shaft. A pair of arms that are displaced in the direction to be moved and a rear end portion connected to the other end of the pair of arms, and a portion continuous with the rear end portion is extended in the longitudinal direction of the base member and then bent in the tire circumferential direction. Extend and above the tip There is provided a hook that is hooked to the hook receiver of the drawn pulling end, and the other end of the pair of arms is pulled in the tire radial direction by displacing in a direction approaching each other. It is provided with the string material which draws a space mutually.

In addition, the reference example of the fastener for the tire anti-skid device according to the present invention draws the space between the pulling end portions that are separated from each other in the tire circumferential direction on the tire outer ring side of the main body portion that exhibits the anti-slip function. In the tire anti-skid device tightening device that tightens the tire outer ring side of the main body portion by the above, a base extending in the tire radial direction through the center of the side surface on the tire outer ring side, and rotating around the mounting axis to the base A pair of operation levers that can be attached and a rear end is locked to the operation lever, and a portion continuous to the rear end extends in the longitudinal direction of the base and is then bent and extends in the tire circumferential direction, and the front end is A hook is provided to be hooked to the hook receiver at the separated drawing end, and the pair of operation levers are pulled in the tire radial direction by rotating around the attachment shaft, A cord material to attract to each other between the attracting end portions, characterized by comprising a.

  The main body portion of the non-slip device may be in any form as long as it can exhibit a non-slip function.For example, it is possible to use a main body portion in which a plurality of treads having a net pattern are arranged and both ends in the width direction are connected to each other by links. it can. The material of the main body portion of the anti-skid device is not particularly limited, but it is preferable that the anti-slip device is manufactured to be thin and light with a light and soft synthetic resin material such as soft urethane.

  The material of the base is not particularly limited, and can be manufactured from a metal material or a synthetic resin material. In addition, the shape of the base is not particularly limited as long as it extends in the radial direction through the center of the side surface on the tire outer ring side, but considering the support of the string material, as shown in the following embodiment, the long case And it is good to form the guide part which changes the direction of a string material in both ends. In this case, the lid may not be provided, but it is preferably provided in consideration of appearance.

  The material of the rotating member and the arm is not particularly limited, and can be made of a metal material or a synthetic resin material. It is desirable that the relative position of the rotating member and the arm is stable when the string member is pulled, and reverse rotation of the rotating member is less likely to occur due to impact during traveling. Therefore, it is preferable that the rotating member is provided with a lock protrusion that abuts one arm and prevents the rotating member from reversing. This lock protrusion may be brought into contact with either one of the arms or both.

  The pair of operation levers are preferably attached so as to rotate in opposite directions near the center of the base member. The material of the operation lever is not particularly limited, and can be made of a metal material or a synthetic resin material.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 5 show a preferred embodiment of a pulling tool for a tire slip preventing apparatus according to the present invention. In the figure, the tire anti-skid device 10 is composed of a plurality of, for example, six treads (main body portions) 12, and each tread 12 is made of a synthetic resin material such as urethane resin.

  The tread 12 has a form in which two X-shaped portions are continuous, and a plurality of spikes 14 are attached to the surface of the tread 12.

  The six treads 12 are grouped in groups of three, and in the adjacent three treads 12, the link between the tip portions of the adjacent leg portions 16 is on the tire outer ring side and the tire inner ring side, for example, a link made of urethane. 18 and a metal link 20 are connected to each other to form two sets of tread pairs.

  The ends on the tire inner ring side of the adjacent leg portions 16 between the two pairs of treads are connected and connected to each other by a link 18 made of a synthetic resin, for example, a metal, and a link 20 made of metal. A push lock 24 is attached to one end and a lock plate 26 is attached to the other end of the leg portion 16 located at both ends of the tire inner ring so that the push lock 24 and the lock plate 26 can be detachably connected to each other. It has become. Since the push lock 24 employs a known lock mechanism, detailed description thereof is omitted. Further, instead of the push lock 24 and the lock plate 26, they may be detachably connected with a hook.

  On the other hand, the tire anti-skid device 10 is provided with the tightening tool 30 of the present example, and between the end portions (drawing end portions) of the adjacent leg portions 16 of the two pairs of tread pairs on the tire outer ring side, and the anti-slip device. The leg portions 16 positioned at both ends of the tire 10 are drawn and tightened between the end portions (drawing end portions) on the tire outer ring side.

  The base 32 of the fastener 30 is formed in a box shape having a top surface opened by fixing a synthetic resin box to a metal plate, and a lid 312 is formed on the upper surface of the base 32 with a locking leg 312A and a locking receiving recess. It can be detachably attached by fitting with 32A.

  The base 32 has a length that extends in the tire radial direction through the center of the side surface on the tire outer ring side, and a rotating member 34 is rotatably supported at the center in the longitudinal direction of the base 32 by a support shaft 34A. At both ends in the longitudinal direction of the rotating member 34, mounting holes 34B are formed so that one end of the arm 36 is rotatably mounted. An operation tool is provided between the support shaft 34A of the rotating member 34 and the mounting hole 34B. A mounting hole 34C into which the two rods 40A of 40 are inserted is formed. By inserting the rod 40A of the operating tool 40 into the mounting hole 34B and rotating it, the rotating member 34 rotates around the support shaft 34A. The other end of the arm 36 is displaced so as to approach each other.

  A rear end of a wire (string member) 38 is connected to the other end of the arm 36, and a portion continuous with the rear end of the wire 38 extends in the longitudinal direction of the base 32, and guides formed at both end portions of the base 32. It is bent sideways (tire circumferential direction) by a groove (not shown), and a hook 310 is attached to the tip of the wire 38. The hook 310 is an end on the tire outer ring side of adjacent leg portions 16 of two pairs of treads. And the hook receiver 28 formed at the end of the leg portion 16 located at both ends of the anti-skid device 10 on the tire outer ring side.

  When the anti-slip device 10 is mounted on a tire, six treads 12 that exhibit the anti-slip function of the anti-slip device 10 are placed on the outer peripheral surface of the tire. Next, the hand is turned to the inner ring side of the tire, the push lock 24 and the lock plate 26 are connected to each other, and the tire inner ring side of the anti-slip device 10 is connected endlessly.

  Next, when the tightening tool 30 of this example is placed along the side surface on the tire outer ring side and the hook 310 is hooked on the hook receiver 28 of the anti-slip device 10, the tightening tool 30 is held on the side surface on the tire outer ring side and the tire The outer ring side is also connected endlessly. Therefore, when the two rods 40A of the operating tool 40 are inserted into the mounting holes 34C of the rotating member 34 and the operating tool 40 is rotated, the rotating member 34 rotates around the support shaft 34A as shown in FIG. And the other ends of the two arms 36 are displaced toward each other.

  Then, between the ends on the tire outer ring side of the adjacent leg portions 16 of the two sets of tread pairs and between the ends on the tire outer ring side of the leg portions 16 positioned at both ends of the anti-slip device 10 are tightened by the fasteners 30. They are attracted to each other, the tire outer ring side of the anti-slip device 10 is tightened, and the anti-slip device 10 is in close contact with the tire.

  At this time, since the rotating member 34 is inclined as shown in FIG. 5B, the rotating member 34 is reversed even if the wire 36 is pulled in the direction to loosen the anti-slip device 10. It does not rotate in the direction and the tightening does not loosen.

  When removing the non-slip device, an operation reverse to the above may be performed.

FIG. 6 shows a reference example , in which the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts. In this example, the base 32 is pivotally supported at the front end of the operation lever 52 by the bracket 50, and the rear end of the operation lever 52 is provided with a locking hole 52 </ b> A. The operation lever 52 is locked by fitting.

  An end of a wire 56 is locked to the operation lever 52 by a mounting pin 54, the wire 54 extends in the longitudinal direction of the base 32, and is bent to the side (tire circumferential direction) by a guide groove at the tip of the base 32. A hook is attached to the tip of the wire 38, hook receivers at the ends of the adjacent leg portions 16 of the two pairs of treads on the tire outer ring side, and tire outer rings of the leg portions 16 positioned at both ends of the anti-slip device 10. They are hooked by a hook receiver at the side end so as to draw them together.

  In this example, after the hook is hooked on the hook receiver of the anti-slip device 10, the operation lever 52 is rotated, the wire 38 is pulled, and the end portions on the tire outer ring side of the adjacent leg portions 16 of the two pairs of treads are pulled. Between the ends of the leg portions 16 located at both ends of the anti-slip device 10 and the end portions on the tire outer ring side can be tightened.

  Since the operation lever 52 is held in a collapsed state by the engagement of the locking projection 56 and the locking hole 52A, the operation lever 52 does not stand up and the anti-slip device 10 is not tightened. Also in this example, the base 32 can be covered with a lid (not shown).

It is a schematic perspective view which shows the mounting state to the tire of preferable embodiment of the slip prevention apparatus which concerns on this invention. It is a figure which shows the whole structure of the said anti-slip | skid apparatus. It is a figure which shows the structure of the fastener in the said anti-slip | skid apparatus. It is a figure which shows the operation tool in the said embodiment. It is a figure which shows typically operation | movement of the fastener in the said embodiment. It is a figure which shows the structure of the fastener in a reference example .

10 Non-slip device 12 Tread (main body)
16 Legs (attraction end)
28 Hook support 30 Fastener 32 Base 34 Rotating member 34A Support shaft 36 Arm 38 Wire (string material)
310 Hook 52 Operation lever

Claims (2)

Cover the tire with the main body part that demonstrates the anti-slip function, connect the main body part endlessly, and draw the space between the pulling end parts spaced apart from each other in the tire circumferential direction on the tire outer ring side of the main body part. In the tire anti-slip device, the main body portion is brought into close contact with the tire by tightening the tire outer ring side of the main body portion.
Two drawing end portions (16) spaced apart from each other are provided at two locations of the main body portion (12) facing each other in the tire radial direction when the main body portion (12) is put on the tire. A hook receiver (28) is formed on each of the four pulling ends (16) .
The hook (310) provided at the tip of the string member (38) of the fastener (30) is hooked on the hook receiver (28) of the spaced drawing end part (16) , and the string member (38) The portion following the tip extends in the tire circumferential direction and is then bent in the tire radial direction so as to extend toward the center side of the side surface on the tire outer ring side, and the rear end side of the string member (38) is the fastener (30). By pulling in the tire radial direction, the spaced-apart pulling end portions (16) are drawn toward each other in the tire circumferential direction ,
The fastener (30) is
A base (32) extending in the tire radial direction through the center of the side surface on the tire outer ring side;
A rotating member (34) rotatably supported about a support shaft (34A) at the longitudinal center of the base (32);
One end of each is attached to both ends of the rotating member (34), and the other end approaches each other by rotating the rotating member (34) around the support shaft (34A). A pair of arms (36) displaced in a direction;
A rear end portion is connected to the other end of the pair of arms (36), and a portion continuing to the rear end portion is bent in the longitudinal direction of the base (32) and then bent in the tire circumferential direction, and the tip is connected to the tip. A hook (310) is provided to be hooked to the hook receiver (28) of the separated drawing end (16), and the other ends of the pair of arms (36) are displaced in a direction approaching each other, thereby causing a tire radial direction. A string member (38) that is pulled by and pulled between the spaced-apart pulling ends (16);
Anti-slip device of the tire, characterized in that composed. By pulling each other between two pulling end portions that are spaced apart from each other in the tire circumferential direction in the tire radial direction on the tire outer ring side of the main body portion that exhibits the anti-slip function, In the tightening tool of the tire non-slip device that tightens the tire outer ring side,
A base (32) extending in the tire radial direction through the center of the side surface on the tire outer ring side;
A rotating member (34) rotatably supported about a support shaft (34A ) at the longitudinal center of the base (32) ;
Each one end attached to both ends portions of said rotating member (34), each of the other end closer to each other by the rotating member (34) is around the rotating operation of the support shaft (34A) A pair of arms (36) displaced in a direction;
A rear end portion is connected to the other end of the pair of arms (36) , and a portion continuing to the rear end portion is bent in the longitudinal direction of the base (32) and then bent in the tire circumferential direction, and the tip is connected to the tip. A hook (310) is provided to be hooked to the hook receiver (28) of the separated drawing end (16) , and the other ends of the pair of arms (36) are displaced in a direction approaching each other, thereby causing a tire radial direction. A string member (38) that is pulled by and pulled between the spaced-apart pulling ends (16) ;
A fastener for a tire non-slip device, comprising:

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