JP2008013051A - Anti-skid device for tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To install an anti-skid material to be fastened to a tire with simple operation. <P>SOLUTION: The anti-skid materials 1a, 1b and 1c are provided with: a crossing part crossing the grounding surface of the tire T; an inside part along the inside surface of the tire; and an outside part along the outside surface of the tire, and formed into a U-shape structure to be fitted on the peripheral side of the tire. Several anti-skid materials are fitted on the peripheral side of the tire, and arranged over the whole circumference of the tire with an equal interval, and the anti-skid materials arranged in the circumferential direction of the tire are connected to each other by a connecting cable and formed into a ring. In the anti-skid device for a tire with this structure, a wind-up type traction mechanism 11 for winding up a chain to hold it with a chain pulley provided with an inverse revolution stopper is fitted to the outside of the anti-skid material 1a, and a chain pulley winding part 37 of the connecting cable 14 outside the adjacent anti-skid material 1c is formed into a chain. When connecting both the anti-skid materials 1a and 1c to each other, the chain pulley winding part 37 of the connecting cable 14 is wound around the chain pulley of the wind-up type traction mechanism 11, and wound up, and tensed by traction so as to hold the tensile condition. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an anti-slip device for a tire to be mounted on an automobile tire.

  The anti-slip device for a tire disclosed in Patent Documents 1 and 2 is fitted with a U-shaped anti-slip body on the outer peripheral side of an automobile tire. Several anti-slip bodies are arranged at almost equal intervals on the entire circumference of the tire, and the adjacent ones are connected. All the anti-slip bodies are connected to form a ring and are attached to the tire. When removing the anti-slip device attached to the tire, the anti-slip bodies adjacent to each other are separated and each anti-slip body is removed from the tire.

  The non-slip body has a U-shaped structure that includes a transverse part that crosses the ground contact surface of the tire, an inner part that follows the inner side of the tire, and an outer part that follows the outer side of the tire, and fits on the outer peripheral side of the tire. . The outer part of the anti-slip body has a connecting strip attached to each end in the tire circumferential direction. The connecting strip has a connecting tool attached to the end. When the anti-slip bodies arranged in the circumferential direction of the tire are connected, the connecting strips on one side of each anti-slip body are connected to the connecting strips on one side of the adjacent anti-slip bodies in a separable manner.

Japanese Patent No. 3557464 Japanese Patent No. 37187979

[Issues of background technology]
The anti-slip device for a tire as described above is attached so that the anti-slip member does not shift in the circumferential direction with respect to the tire during traveling of the automobile. When several anti-slip bodies are sequentially connected with connecting strips to form a ring, when the anti-slip body is in a state of tightening the tire, the anti-slip body comes into close contact with the tire and does not shift.

  However, in order to achieve such a tight contact state, at the time of the last connection of the anti-slip body, the connecting strip is pulled by hand to deform the tire, or the spring attached to the connecting strip is deformed, and the tire or The connecting strip is connected by hand while receiving the elastic force of the spring. This connecting operation requires a large force and is not easy.

  In addition, the tires of automobiles are worn out on the ground contact surface, and the outer diameter is reduced. The outer diameter of the tire is maximum when it is mounted on a car, and is minimum when it is worn out and removed. It is desired that the tire anti-slip device can be attached to the tire in a tight contact state at any time from when the tire has a new maximum outer diameter to when the tire has a minimum outer diameter.

[Idea for solving problems]
In the tire anti-slip device as described above, when several anti-slip bodies are sequentially connected by connecting strips to form a wheel, at the final connection, the connecting strip is pulled and connected by a traction mechanism. . The traction mechanism is a hoisting type in which the chain is wound and held by a chain wheel with a reverse rotation stop. Connecting strips are chained.

  At the time of the last connection of the non-slip body, the hoisting traction mechanism winds the chain connection strip around the chain wheel. Then, the chain connecting strip is pulled and tensioned, and is held in the pulling position by the reverse rotation prevention of the chain wheel. Several anti-slip bodies form a ring and tighten the tire. The pulling distance of the chain connecting strip increases as the outer diameter of the tire decreases.

  By operating the hoisting type pulling mechanism, the anti-slip body is attached to the tire in a tight contact state, and does not shift with respect to the tire. Even if the outer diameter of the tire is reduced, it is similarly attached to the tire so that it is tightly attached and not displaced.

1) The anti-slip body has a U-shape that includes a transverse portion that crosses the ground contact surface of the automobile tire, an inner portion that follows the inner surface of the tire, and an outer portion that conforms to the outer surface of the tire, and fits on the outer peripheral side of the tire. It is structured so that several anti-slip bodies are fitted on the outer periphery of the tire and arranged at almost equal intervals around the tire,
In the anti-slip device for the tire, the outer portion of the anti-slip body is attached to a connecting strip, and the anti-slip body arranged in the circumferential direction of the tire is connected to the anti-slip body by a connecting strip to form a wheel.
At least one anti-slip body is attached to the outer side with a hoisting traction mechanism that winds and holds the chain with a chain wheel with reverse rotation prevention, and at least the chain wheel of the connecting strip on the outer side of the adjacent non-slip body Chain the parts,
When connecting both anti-slip bodies, the hoisting-type traction mechanism is characterized in that the chain-wound portion of the chain of the connection strip is wound around the chain wheel, wound up, pulled and tensioned and held. To do.

2) In the tire anti-slip device,
At least one anti-slip body is provided with a plurality of connecting positions at different distances from the mounting position on the connecting strip attached to the outer side,
In connecting the connecting strip having a plurality of connecting positions to the outer portion of the adjacent anti-slip body, the connecting position is selected and the interval between the adjacent anti-slip bodies is adjusted.

  When several anti-slip bodies are connected to form a ring, the connecting strip is pulled and tensioned by the hoisting type pulling mechanism and held. By operating the hoisting traction mechanism, the anti-slip body is attached to the tire in a tightly attached state. Even if the outer diameter of the tire is reduced, it is similarly attached to the tire in a tight contact state. It is easily mounted in a state that does not shift with respect to the tire by operating the hoisting type pulling mechanism.

  FIG. 1 and FIG. 2 show a state in which the anti-slip device for a tire according to the embodiment is mounted on a tire T of an automobile. FIG. 1 is an outer surface viewed from the outside of an automobile. FIG. 2 is an inner surface viewed from the inside of the automobile. This anti-slip device connects three anti-slip bodies 1a, 1b, 1c at substantially equal intervals when mounted on a tire T. The three anti-slip bodies 1a, 1b and 1c are shown in FIG. FIG. 3 is an outer surface viewed from the outside of the automobile.

  Each of the first, second and third anti-slip bodies 1a to 1c includes a fitting portion having the same structure. As shown in FIGS. 4 and 5 in an enlarged manner with respect to the second anti-slip body 1b, this fitting portion includes a U-shaped member 2 on the front side (left side in the figure) in the tire rotation direction, and the rear side in the tire rotation direction (in the drawing). (Right side) U-shaped member 3 and inner linear member 4 are provided.

  Both the front and rear U-shaped members 2 and 3 are formed by bending a steel rod into a U shape and have the same structure. Both U-shaped members 2 and 3 are composed of transverse portions 2a and 3a that traverse the tire contact surface, outer portions 2b and 3b that extend along the outer surface of the tire, and inner portions 2c and 3c that extend along the inner surface of the tire. A U shape that fits on the outer peripheral side is formed. The U-shaped members 2 and 3 on the front side and the rear side are fitted to the tire with a central angle of 60 degrees.

  The linear member 4 is a chain or leaf chain in which a large number of plate links are connected by a pin so as to be rotatable. The inner linear member 4 connects the inner portion 2c of the front U-shaped member 2 and the inner portion 3c of the rear U-shaped member 3, and extends along the inner surface of the tire. The front and rear U-shaped members 2 and 3 have connecting plates 5 and 6 rotatably attached to the ends of the inner portions 2c and 3c, respectively, with pins. The front end and the rear end of the inner linear member 4 are rotatably attached to the connecting plate 5 of the front U-shaped member 2 and the connecting plate 6 of the rear U-shaped member 3 with pins.

  That is, the fitting portions of the first, second, and third anti-slip bodies 1a to 1c constitute the crossing portions that cross the tire contact surface at the crossing portions 2a and 3a of the front and rear U-shaped members 2 and 3, The outer portions 2b and 3b of the front and rear U-shaped members 2 and 3 constitute an outer portion along the outer surface of the tire, and the inner portions 2c and 3c of the front and rear U-shaped members 2 and 3 and the linear member 4 An inner portion along the inner surface of the tire is formed, and a U-shaped structure is fitted to the outer peripheral side of the tire.

  As shown in FIG. 3, the outer side portion of the first anti-slip body 1 a is attached to the outer side portion 2 b of the front U-shaped member 2 and the rear side portion 3 c of the rear U-shaped member 3 is attached to the rear side. A connecting strip 12 is attached. The outer side portion of the second anti-slip body 1 b has a front connecting strip 13 attached to the outer portion 2 b of the front U-shaped member 2 and a rear connecting strip 12 attached to the outer portion 3 c of the rear U-shaped member 3. The outer side portion of the third anti-slip body 1 c has a front connecting strip 13 attached to the outer portion 2 b of the front U-shaped member 2 and a towing connecting strip 14 attached to the outer portion 3 c of the rear U-shaped member 3.

  The first anti-slip body 1 a and the third anti-slip body 1 c are connected by a hoisting type traction mechanism 11 and a traction connecting strip 14. In the first anti-slip body 1a, a connecting plate 16 is rotatably attached to the end of the outer portion 2b of the front U-shaped member 2, and the rear end of the hoisting traction mechanism 11 is rotatable to the connecting plate 16 with a pin. It is attached.

  As shown in FIGS. 6 and 7 in an enlarged manner, the hoisting-type traction mechanism 11 forms a box with an inner plate 17, an outer plate 18 and an outer plate 19. The box is supported by spanning the operation shaft 20 between the inner plate 17 and the outer plate 18. The operation shaft 20 is a hexagonal cylindrical tube shaft, and an outer end opening of a central square hole is communicated with a circular tool hole 21 penetrating the outer plate 18. A rotary tool such as an L-shaped hexagon wrench can be inserted into the central angular hole of the operation shaft 20 through the tool hole 21. The operation shaft 20 is rotated by operating the rotary tool.

  A central angular hole of a chain wheel 22 is fitted to the operation shaft 20, and the chain wheel 22 is concentrically attached. Specifically, the chain wheel 22 is a sprocket for a roller chain. The chain wheel 22 is rotated by the rotation of the operation shaft 20. The outer peripheral plate 19 of the box passes through the chain inlet 23 on the front side and the chain outlet 24 on the upper side. A chain passage is formed between the chain wheel 22 and the outer peripheral plate 19 from the chain inlet 23 to the chain outlet 24. When the chain, specifically, the roller chain, is inserted into the chain passage 23 from the chain inlet 23 and the operation shaft 20 is rotated, the chain wheel 22 is rotated and wound around the chain wheel 22.

  The operation shaft 20 is fitted with a central angular hole of a claw wheel 25 so that the claw wheel 25 is attached concentrically. The claw wheel 25 is rotated by the rotation of the operation shaft 20. A claw plate 26 is swingably attached to the outer plate 18 of the box with a pin. The claw plate 26 is disposed on the upper side of the claw wheel 25. As shown in FIGS. 8 and 9, the claw plate 26 has claws 27 and 28 formed at the lower front end and the lower rear end, respectively. The claw plate 26 has operation pieces 29 and 30 at the upper front end and the upper rear end, respectively. Furthermore, the claw plate 26 forms a mountain-shaped switching piece 31 at the upper center. The box-shaped outer peripheral plate 19 is provided with a spring chamber, and a spiral spring 32 is accommodated in the spring chamber. The spiral spring 32 is disposed above the switching piece 31 of the claw plate. A sphere 33 is fitted between the spiral spring 32 and the nail plate switching piece 31.

  As shown in FIG. 8, when the upper front end operation piece 29 is pushed down, the claw plate 26 lowers the lower front end claw 27, and the ball 33 is pressed against the rear slope of the switching piece 31 by the spiral spring 32. The front end claw 27 meshes with the claw wheel 25. Then, the claw wheel 25, the operation shaft 20 and the chain wheel 22 can be rotated only in the chain pulling direction indicated by an arrow in FIG. These reverse rotations are prevented by the reverse rotation stopping mechanisms 25 to 33 of the claw mechanism. Conversely, as shown in FIG. 9, when the operation piece 30 at the upper rear end is pushed down, the claw 28 at the lower rear end is lowered, and the ball 33 is pressed against the front slope of the switching piece 31 by the helical spring 32. The end claw 28 is engaged with the claw wheel 25. Then, the claw wheel 25, the operation shaft 20 and the chain wheel 22 can be reversed, and can rotate only in the chain releasing direction indicated by the arrow in FIG.

  In the third anti-slip body 1c, as shown in FIGS. 1 and 3, a connecting plate 36 is rotatably attached to the end of the outer portion 3c of the rear U-shaped member 3 with a pin. The front end of 14 is rotatably attached with a pin. The pulling connecting strip 14 is a chain, the front side portion is a leaf chain, and the rear side portion 37 is a roller chain. In the roller chain 37, a large number of plate-like links are rotatably connected by pins, and a roller is fitted to each pin. The rear side portion 37 of the roller chain is a portion that winds around the chain wheel 22 of the hoisting type pulling mechanism 11.

  When the hoisting pulling mechanism 11 is operated to pull the chain, the operation piece 29 at the upper front end is pushed down, and the rear end and the free end of the rear side portion 37 of the pulling connecting strip 14 are inserted into the chain passage from the chain inlet 23 to operate the operating shaft. 20 is rotated. Then, the rear side portion 37 of the roller chain is wound around the chain wheel 22 by the rotation of the chain wheel 22 and reaches the chain outlet 24. The towing connecting strip 14 is pulled and tensioned. Conversely, when the chain pulling operation of the hoisting traction mechanism 11 is performed, the operation piece 30 at the upper rear end is pushed down. Then, the chain wheel 22 can be reversed. The pulling connecting strip 14 is relaxed and can be pulled out from the chain entrance 23 of the chain passage. The pulling connection strip 14 is pulled out from the chain inlet 23 by hand. Or, it is fed out by the rotation of the operation shaft 20.

  The first anti-slip body 1 a and the second anti-slip body 1 b are connected by the rear side connecting strip 12 and the front side connecting strip 13. Similarly, the second anti-slip body 1 b and the third anti-slip body 1 c are also connected by the rear connecting strip 12 and the front connecting strip 13. In the first anti-slip body 1a and the second anti-slip body 1b, as shown in FIGS. 1 and 3, respectively, a connecting plate 36 is rotatably attached to the end of the outer portion 3b of the rear U-shaped member 3 with a pin. The front end of the rear connecting strip 12 is attached to the connecting plate 36 so as to be rotatable with a pin. In the second anti-slip body 1b and the third anti-slip body 1c, a connecting plate 16 is rotatably attached to the end of the outer portion 2b of the front U-shaped member 2 with a pin, and the rear of the front connecting strip 13 is attached to the connecting plate 16. The end is rotatably attached with a pin. Each of the rear side connecting strip 12 and the front side connecting strip 13 is a chain or leaf chain in which a large number of plate-like links are connected by a pin so as to be rotatable.

  The rear side connecting strip 12 and the front side connecting strip 13 are provided with a connector. As shown in FIG. 4, the coupler penetrates the first coupling hole 41 through the link at the front end and the free end of the front coupling strip 13. Further, a connecting link is rotatably attached to two pins in the middle of the front side connecting strip 13, respectively, and the second connecting hole 42 and the third connecting hole 43 are passed through the two connecting links, respectively. ing. The first, second, and third connection holes 41, 42, and 43 are the first connection position, the second connection position, and the third connection position, respectively. These connection positions 41, 42, and 43 are different in distance from the rear end and the attachment end of the front connection strip 13. A connecting pin 44 is provided on the rear end and free end link of the rear connecting strip 12 so as to protrude outward. The connection pin 44 can be inserted into any of the first, second, and third connection holes 41, 42, and 43.

  The rear side connecting strip 12 and the front side connecting strip 13 are enlarged and shown in FIGS. 10 and 11 show the connected state of the rear connecting strip 12 and the front connecting strip 13 and the connected state of the coupler. 12 and 13 show the separated state of the coupler. FIG. 14 and FIG. 15 each show a state in the middle of connection or separation of the connector.

  The connection tool is provided with a mechanism for preventing the connection holes 41, 42, 43 and the connection pin 44 from coming off. As shown in FIGS. 12 and 13 and FIGS. 10 and 11, the retaining mechanism includes a free-end link pin 46 provided with a connection pin 44 of the rear connection strip 12 on the outside in the protruding direction of the connection pin 44. It is extended. In addition, a retaining link 47 penetrating the idiot hole is provided at both ends. The extended outer portion of the pin 46 passes through the idiot hole at one end of the retaining link 47 and the center hole of the spiral spring 48, and the spiral spring 48 passes through the large-diameter extended end and large diameter of the retaining link 47 and the pin 46. It is fitted between the outer ends. As shown in FIGS. 10 and 14, the retaining link 47 can rotate around the extended outer portion of the pin 46, and has a free end that resists the helical spring 48 as shown in FIGS. 11 and 15. Thus, the raised connecting pin 44 can move outward in the protruding direction. The idiot hole 49 at the free end of the retaining link 47 can penetrate the connecting pin 44.

  When connecting the rear connecting strip 12 and the front connecting strip 13 at the first connecting position 41, as shown in FIGS. 12 and 13, the link provided with the connecting pin 44 of the rear connecting strip 12 and the front connecting strip 13 A link provided with the first connection hole 41 is brought close to the link. Further, the retaining link 47 is arranged at a position intersecting with the link provided with the connecting pin 44. As shown in FIG. 14, the connecting pin 44 is inserted into the first connecting hole 41, penetrates the link provided with the first connecting hole 41, and protrudes outward. As shown in FIG. 15, the retaining link 47 rotates while moving the free end outward against the helical spring 48, and then moves the free end inward by the elastic force of the helical spring 48. The foolish hole 49 is inserted into the protruding portion of the connecting pin 44. As shown in FIGS. 10 and 11, the link provided with the first connecting hole 41 of the front connecting strip 13 has the connecting pin 44 of the rear connecting strip 12 in a state where the connecting pin 44 penetrates the first connecting hole 41. Is sandwiched between the link 47 and the retaining link 47. The retaining link 47 is pressed against the link provided with the first connection hole 41 by the elastic force of the helical spring 48. The connecting pin 44 is prevented from coming off.

  When connecting the rear connecting strip 12 and the front connecting strip 13 at the second connecting position 42, the connecting pin 44 is inserted into the second connecting hole 42 instead of the first connecting hole 41 as shown in FIG. 16. The interval between the first anti-slip member 1a and the second anti-slip member 1b or the interval between the second anti-slip member 1b and the third anti-slip member 1c becomes narrow. When connecting at the third connection position 43, the connection pin 44 is inserted into the third connection hole 43 as shown in FIG. 17. The interval between the anti-slip bodies 1a, 1b or 1b, 1c adjacent to the front and rear is further narrowed.

  When the anti-slip device is attached to the tire T, the three anti-slip bodies 1 a to 1 c are fitted on the outer peripheral side of the tire T and are arranged at almost equal intervals on the entire circumference of the tire T. The first anti-slip body 1 a and the second anti-slip body 1 b are connected by the rear side connecting strip 12 and the front side connecting strip 13. Further, the second anti-slip body 1 b and the third anti-slip body 1 c are connected by the rear side connecting strip 12 and the front side connecting strip 13. At that time, the connection positions 41, 42, and 43 are selected, and the interval between the front and rear adjacent anti-slip bodies is adjusted. Finally, the first anti-slip body 1a and the third anti-slip body 1c are connected by the hoisting type pulling mechanism 11 and the connecting line 14 for towing. The hoisting type pulling mechanism 11 performs chain pulling operation, pulls the pulling connecting strip 14, tensions it, and holds it. The three anti-slip bodies 1a to 1c form a ring and are attached to the tire T in a tight contact state.

  When the connection positions 41, 42, and 43 of the rear side connecting strip 12 and the front side connecting strip 13 are appropriately selected, the hoisting traction mechanism 11 shortens the traction distance of the traction connecting strip 14 and facilitates chain pulling operation. become.

  When removing the anti-skid device from the tire, first, the hoisting traction mechanism 11 is operated to release the chain, and the traction connecting strip 14 is loosened and released.

[Modification]
1) In the above-described embodiment, the number of connection points between the adjacent anti-slip bodies by the hoisting type pulling mechanism 11 and the pulling connecting strip 14 is one, but it is set to a plurality of points.
2) In the above embodiment, the chain wheel 22 of the hoisting-type traction mechanism 11 is a sprocket for a roller chain, and the portion 37 around the chain wheel of the traction connecting strip 14 is a roller chain or a plate link chain. The chain wheel winding portion 37 of the connecting strip 14 is a ring-shaped chain chain that is formed by connecting a large number of oval and elliptical ring links in a rotatable manner, and the chain wheel 22 is a chain wheel chain chain groove for an annular chain. .
3) In the above embodiment, the traction connecting strip 14 has a roller chain at the rear side portion 37 of the chain winding portion and a leaf chain at the front side portion, but the entire length is a roller chain or an annular chain.
4) In the above embodiment, the number of anti-slip bodies is three, but two, four, or some other number.
5) In the above embodiment, the fitting portion of the anti-slip body includes the front and rear U-shaped members 2 and 3 and the inner linear member 4, but the outer linear member is provided. The outer linear members connect the outer portions 2b and 3b of the front and rear U-shaped members 2 and 3 along the outer surface of the tire.
6) In the above-described embodiment, the connection positions of the rear connecting strip 12 and the front connecting strip 13 between the adjacent anti-slip bodies are the first, second, and third connecting holes 41, 42, and 43. One place, two places, or four or more places.
7) In the above embodiment, the connection holes 41, 42, 43 are provided in the front connection strip 13 and the connection pins 44 are provided in the rear connection strip 12, but conversely, the connection pins 44 are provided in the front connection strip 13. The connecting holes 41, 42, 43 are provided in the rear connecting strip 12.

  The anti-slip device for a tire according to the present invention is used in various vehicles such as large trucks and small passenger cars.

The front view which shows the outer side surface of the tire mounting state of the anti-slip | skid apparatus of the tire in embodiment of this invention. The rear view which shows the inner surface of the tire mounting state of the apparatus. The front view which shows the isolation | separation state of the anti-slip | skid body of the same apparatus with the state at the time of tire mounting | wearing. The enlarged front view of the 2nd non-slip body in FIG. The enlarged plan view of the 2nd non-slip body. The figure which shows the state which cut | disconnected the box body by the BB line of FIG. 7 in the enlarged front view of the winding type traction mechanism of the apparatus. AA line sectional view of Drawing 6. The front view which shows the pulling state of the winding type pulling mechanism, and the figure which shows the state which cut | disconnected the box body by the CC line of FIG. It is a front view which shows the releasing state of the same winding type traction mechanism, and is a figure which shows the state which cut | disconnected the box body by the CC line of FIG. The enlarged front view which shows the connection state of the rear side connecting strip and front side connecting strip of the apparatus. The top view which shows the connection state. The enlarged front view which shows the isolation | separation state of the rear side connecting strip and the front side connecting strip of the apparatus. The top view which shows the isolation | separation state. The front view which shows the middle state of the connection or isolation | separation of the rear side connecting strip and the front side connecting strip of the apparatus. The top view which shows the middle state of the connection or isolation | separation of the rear side connecting strip and the front side connecting strip of the apparatus. The front view which shows the state which connected the rear side connecting strip and the front side connecting strip of the apparatus in the 2nd connection position. The front view which shows the state which connected the back side connecting strip and the front side connecting strip of the apparatus in the 3rd connection position.

Explanation of symbols

T Car tires 1a to 1c Non-slip body 1a First anti-slip body 1b Second anti-slip body 1c Third anti-slip body 2 U-shaped member 2a on the front side 2b Outer part 2c Inner part 3 U-shaped member on the rear side 3a transverse part 3b outer part 3c inner part 4 inner linear member, chain, leaf chain 5 inner front connecting plate 6 inner rear connecting plate 2a, 3a non-slip crossing part 2b, 3b anti-slip body Outside part 2c, 3c, 4 Inside part 11 of anti-slip body 11 Hoisting type pulling mechanism 12 Rear side connecting strip, chain, leaf chain 13 Front side connecting strip, chain, leaf chain 14 Towing connecting strip, chain, leaf chain Roller chain 16 Outer front connecting plate 17 Box inner plate 18 Box outer plate 19 Box outer plate 20 Operating shaft 21 Tool hole 22 Chain wheel, roller chain sprocket 23 Chain inlet 24 Chain outlet 25 Claw wheel 6 Claw plate 27 Lower front end claw 28 Lower rear end claw 29 Upper front end operation piece 30 Upper rear end operation piece 31 Switching piece 32 Spiral spring 33 Balls 25-33 Claw wheel mechanism, reverse rotation prevention mechanism 36 Outside rear side Connecting plate 37 rear side portion of pulling connecting strip, roller chain, chain wheel winding portion 41 first connecting hole, first connecting position 42 second connecting hole, second connecting position 43 third connecting hole, third connecting position 44 connecting pin 41, 42, 43, 44 connecting tool 46 pin 47 retaining link 48 spiral spring 49 stupid hole 46, 47, 48, 49 retaining mechanism

Claims (2)

The anti-slip body has a U-shaped structure that includes a transverse part that crosses the ground contact surface of the automobile tire, an inner part that follows the inner side of the tire, and an outer part that follows the outer side of the tire, and is fitted to the outer peripheral side of the tire. , A configuration in which several anti-slip bodies are fitted on the outer peripheral side of the tire and arranged at almost equal intervals on the entire circumference of the tire,
In the anti-slip device for the tire, the outer portion of the anti-slip body is attached to a connecting strip, and the anti-slip body arranged in the circumferential direction of the tire is connected to the anti-slip body by a connecting strip to form a wheel.
At least one anti-slip body is attached to the outer side with a hoisting traction mechanism that winds and holds the chain with a chain wheel with reverse rotation prevention, and at least the chain wheel of the connecting strip on the outer side of the adjacent non-slip body Chain the parts,
When connecting both anti-slip bodies, the hoisting-type traction mechanism is characterized in that the chain-wound portion of the chain of the connection strip is wound around the chain wheel, wound up, pulled and tensioned and held. Tire anti-slip device. At least one anti-slip body is provided with a plurality of connecting positions at different distances from the mounting position on the connecting strip attached to the outer side,
2. When connecting a connecting strip having a plurality of connecting positions to an outer portion of an adjacent anti-slip body, the connecting position is selected and the interval between adjacent anti-slip bodies is adjusted. An anti-slip device for a tire according to 1.

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