WO1990014966A1 - Clou antiderapant et pneu antiderapant pourvu de ce clou - Google Patents
Clou antiderapant et pneu antiderapant pourvu de ce clou Download PDFInfo
- Publication number
- WO1990014966A1 WO1990014966A1 PCT/JP1990/000740 JP9000740W WO9014966A1 WO 1990014966 A1 WO1990014966 A1 WO 1990014966A1 JP 9000740 W JP9000740 W JP 9000740W WO 9014966 A1 WO9014966 A1 WO 9014966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- enlarged
- diameter
- slip pin
- pin
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
- B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
- B60C11/1606—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug
Definitions
- the present invention relates to an anti-skid pin unit for preventing a vehicle from slipping on an icy road when the vehicle starts or stops, and an anti-skid tire using the same.
- spike tires in which a plurality of spikes (also referred to as studs) are driven into snow tires have been used in order to ensure the safe driving performance of vehicles on icy and snowy road surfaces.
- an anti-slip pin unit as shown in FIG. 12 (Japanese Patent Application No. 63-50467).
- the anti-slip pin unit is floated in the cylinder 2 so that the anti-slip pin 3 can protrude.
- An enlarged portion 3 a is formed at the rear end of the anti-slip pin 3, and the enlarged portion 3 a is prevented from falling off at a step 2 a in the middle of the cylinder 2.
- a spring 4 is interposed between the bottom surface 2 b of the cylinder 2 and the enlarged portion 3 a, and the enlarged neck portion 3 b at the tip of the anti-slip pin 3 projects from the tip of the cylinder 2.
- the enlarged portion 3a of the anti-slip pin 3 is a thin plate-like body formed slightly smaller than the inner diameter of the cylinder 2.
- the anti-skid pins 3 During traveling at a constant speed, the anti-skid pins 3 enter the cylinders 2 against the elastic force of the springs 4, so that the road surface is not damaged.
- the vehicle slips easily during deceleration, but in this case, the anti-skid pins 3 coming in contact with the road surface in turn due to the rotation of the tires cause horizontal slippage due to resistance from the road surface. Is applied, the anti-slip pin 3 is tilted in the cylinder 2 and the enlarged diameter neck 3b is engaged with the opening edge of the cylinder 2 by its jaw to maintain a protruding state, thereby preventing a slip.
- the anti-slip pins 3 protrude with each rotation of the tire, and a large force is applied to the enormous portion 3a each time. Therefore, if the enlarged portion 3a is thin, it may be deformed or damaged.
- the enlarged portion 3a of the anti-skid pin 3 is made thicker and the diameter of the enlarged portion 3a is made smaller, but the axes of the cylinder 2 and the anti-slip pin 3 can be matched. Not easy to slip You. For this reason, only a small horizontal force is applied to each anti-slip pin unit, so that the enlarged neck portion 3b of the anti-slip pin 3 easily engages with the opening edge of the cylinder 2 to protrude, thereby reducing the road surface. There is a risk of shaving.
- an object of the present invention is to provide an anti-skid pin unit that reliably advances and retreats in a state where the axis of a cylinder and the axis of an anti-slip pin are aligned during normal running, and an anti-skid tire in which a plurality of the anti-slip pin units are embedded. I do.
- the present invention has the following configuration to achieve the above object.
- a cylinder having an opening at the front end, a flange portion on the outer periphery of the rear end portion for retaining, and a retaining portion having a through hole in the axial direction protruding inside the middle portion; and a cylinder extending along the cylinder axis.
- the shaft freely tilts, and the rear end of the shaft is located in the space at the rear end of the cylinder.
- a large-diameter enlarged part is formed, and at the tip of the shaft, an enlarged neck is formed that is smaller than the cylinder diameter on the tip side of the cylinder.
- This enlarged neck can protrude outward from the opening edge of the cylinder tip, preventing slipping
- the jaw engages with the opening edge of the cylinder tip, and the spring between the lid that closes the opening at the rear end of the cylinder and the enlarged portion of the anti-slip pin.
- the outer diameter is almost the same as that of the outer diameter. It is characterized in that it is formed on an inclined surface that is inclined inward so as not to hinder the tilting when tilting with a part of the maximum outer diameter portion as a fulcrum.
- the cross-sectional shape of the enlarged portion of the anti-slip pin unit may be trapezoidal, inverted trapezoidal, or the cross-sectional shape of the side wall portion of the enlarged portion may be arc-shaped.
- the contact surface between the enlarged portion of the anti-slip pin unit and the retaining portion may be formed on a surface perpendicular to the axis of the cylinder, and the rear end of the shaft is slightly smaller than the inner diameter of the through hole of the retaining portion of the cylinder. The diameter may be reduced toward the jaw while being formed.
- the outer diameter of the enlarged diameter neck portion of the anti-slip pin unit may be formed smaller than the inner diameter of the through hole of the retaining portion of the cylinder.
- each of the above-mentioned anti-slip pin units can be embedded into a number of holes provided on the outer surface of the tire tread to form anti-slip tires.
- FIG. 1 is a cross-sectional view showing a part of an anti-skid tire of the present invention
- FIG. 1 is a partial cross-sectional view of a tire
- FIG. 3 shows a state in which an anti-slip pin unit is embedded in a tread surface of the tire.
- Plan view showing a part of the tire Fig. 4 is a longitudinal sectional view of the anti-slip pin unit
- Fig. 5 is a cross-sectional explanation showing the anti-slip pin unit of the anti-skid tire in contact with the ground
- Fig. 6 is running on a snowy road surface.
- Fig. 7 is a side view showing the movement of the anti-slip pin of the anti-skid tire
- Fig. 1 is a cross-sectional view showing a part of an anti-skid tire of the present invention
- FIG. 1 is a partial cross-sectional view of a tire
- FIG. 3 shows a state in which an anti-slip pin unit is embedded in a tread surface of
- FIG. 7 is a cross-sectional explanatory view of another anti-slip pin unit
- Fig. 8 is a view of the anti-slip pin unit of Fig. 7.
- FIGS. 9 to 11 are cross-sectional explanatory views showing another embodiment of the anti-skid pin unit
- FIGS. 9 to 11 are cross-sectional explanatory views showing another conventional anti-slip pin unit.
- the tire 11 is made up of several layers of warp yarn-made cloth made of nipple, called cord cloth. It is composed of several layers of breakers 11b, and a thick rubber layer 11c that supports the weight of the vehicle and withstands the impact and friction with the road surface due to rapid rotation. A pattern is engraved on the outer peripheral surface of the rubber layer 11c to form a tread surface 11d.
- Anti-slip pin units 10 are embedded in a number of holes 17 drilled at appropriate positions around the tread portion 11 d of the tire 11 (see FIG. 1).
- the anti-slip pin unit will be described with reference to FIG.
- a flange portion 14 is formed at the rear end of the cylindrical cylinder 12 constituting each anti-slip pin unit 10.
- the cylinder 12 has a small-diameter cylinder portion 12 A with a small diameter at the front end, and a large-diameter enlarged cylinder portion 12 B at the rear end.
- a step 12 b is formed on the outer peripheral surface at the boundary between the reduced diameter cylinder portion 12 A and the increased diameter cylinder portion 12 B.
- an inner flange having a through hole 16a that is, a retaining portion 16 protrudes from the inner peripheral surface of the boundary portion.
- a shaft 18 is idled in the cylinder 12.
- the rear end of the shaft 18 is formed with an enlarged portion 20 located in the enlarged cylinder portion 12 B of the cylinder 12, and a halfway portion of the shaft 18 penetrates the through hole 16 a loosely.
- a large-diameter enlarged neck portion 22 is formed at the distal end portion, and forms a non-slip pin 32. Widened neck At the center of the lower surface of the part 22, a tip 24 made of a cemented carbide is fixed with its head exposed.
- the rear end of the enlarged-diameter cylinder portion 12B of the cylinder 12 is opened, and the opening 13 is closed by a lid 13a.
- a spring 30 is mounted between the lid 13 a and the enlarged portion 20 of the anti-slip pin 32, and urges the anti-slip pin 32 in the direction of the opening ⁇ 12 a of the cylinder 12.
- a recess 20 b is formed on the upper surface of the enlarged portion 20, and the lower end of the spring 30 is fitted into the recess 20 b.
- the spring 30 presses the enlarged portion 20 of the anti-slip pin 32 against the retaining portion 16 of the cylinder 12, and always positions the anti-slip pin 32 so as to coincide with the axis of the cylinder 12. Since the contact surfaces 20c and 16b between the enlarged portion 20 and the retaining portion 16 are formed on the surfaces orthogonal to the axis of the cylinder 12, respectively, the axis of the anti-slip pin 32 is Axis. At this time, the enlarged diameter neck portion 22 of the anti-slip pin 32 protrudes outward from the opening edge 12 a of the cylinder 12. That is, the length of the shaft 18 is set to be longer from the upper surface of the retaining portion 16 toward the front side than the diameter-reduced cylinder portion 12A.
- the inner edge of the opening ⁇ 12a of the cylinder 12 is also formed in a round surface that follows the round surface of the jaw 22a.
- the enlarged portion 20 is relatively thick, and has an inclined surface inclining inward except for the maximum outer diameter portion of the side wall portion 20a, and has a substantially trapezoidal longitudinal section.
- the diameter of the lower end portion, which is the largest diameter portion, is slightly smaller than the inner diameter of the expanded cylinder portion 12B and larger than the diameter of the through hole 16a.
- the diameter of the enlarged neck 22 of the anti-slip pin 32 is slightly smaller than the diameter of the through hole 16a, and also smaller than the inner diameter of the reduced-diameter cylinder portion 12A of the cylinder 12. Although it is prevented from coming off by the large part 20 and the retaining part 16, it can be removed from the opening 13 behind the cylinder 12.
- the anti-slip pins 32 are pushed in the axial direction by being piled by the biasing force of the spring 30, the enlarged-diameter neck portion 22 enters the reduced-diameter cylinder portion 12A.
- the anti-slip pin 32 can be tilted in the cylinder 12, and when tilted, the jaw 22 a of the enlarged neck 22 engages with the opening ⁇ 12 a of the cylinder 12.
- the enlarged diameter neck portion 22 cannot be immersed in the reduced diameter cylinder portion 12 A, and maintains a protruding state from the cylinder 12.
- the upper portion of the peripheral surface of the enlarged portion 20 does not obstruct the tilting of the anti-slip pins 32.
- the anti-slip pin unit 10 To assemble the anti-slip pin unit 10, insert the anti-slip pins 3 2 and the spring 30 in order from the opening 13 of the cylinder 12, cover the opening 13 with the lid 13 a, and then attach the lid 13 a to the cylinder. It may be fixed to the rear end of 12 by welding or other means.
- the anti-skid pin unit 10 is in a state where the cylinder 12 is completely buried in the hole 17 drilled in the tire 11 and the anti-skid pin 32 is urged against the spring 30 in the meantime. As a result, the tip of the enlarged diameter neck portion 22 is embedded so as to protrude from the tread surface 11 d of the tire 11.
- the anti-slip pin unit 10 embedded in this way is prevented from falling out of the hole 17 by the step 12 b on the outer peripheral surface of the flange portion 14 ⁇ cylinder 12.
- Driving of the non-slip pin unit 10 into the hole 17 can be performed using a conventional spike pin driving device (not shown).
- the anti-slip pin unit 10 can be driven into the tire by pressing the opening ⁇ ⁇ 12a. Also, after driving, It acts to prevent the cylinder 12 from coming off and to prevent tilting.
- the tip of the anti-skid pin 32 of the anti-skid pin unit 10 is sequentially grounded to the road surface together with the tread portion 11 d by the rotation of the tire 11.
- the anti-slip pins 32 that touch the ground are pushed into the cylinders 12 against the urging force of the springs 30 by adding the weight of the vehicle body to the anti-slip pins 32 (see FIG. 5).
- the largest diameter portion of the enlarged portion 20 is guided while sliding on the inner wall surface of the enlarged diameter cylinder 12B, so that the anti-slip pin 32 is pushed into the cylinder 12 without moving in the horizontal direction.
- the tip of the anti-slip pin 32 abuts on the road surface with a slight repulsive force of the spring 30, so that the road surface is not damaged.
- the coefficient of friction of the road surface is large, so that the road surface is gripped by the tread portion 11 d in a normal braking operation, and the friction force between the tread portion 11 d and the road surface acts as a braking force.
- the effective frictional force between the tread portion 1 1d and the road surface also occurs at the tread portion 1 1d and the anti-skid pin 32, where the tire 11 rotates and then comes into contact with the ground.
- Horizontal to anti-slip pin 3 2 Hardly works. Therefore, the anti-skid pins 32 will again sink into the cylinder 12 and will not cut the road surface.
- the anti-slip pin 32 sinks into the cylinder 12 by the load of the vehicle.
- the tire 11 is slippery on a snowy road surface because the coefficient of friction is small.
- the tread portion 1 1d slides in the S direction in FIG.
- the anti-skid pin 3 2 is more easily engaged with the snowy surface than the tread portion 1 1 d, and the abrupt and large horizontal force f acts on the anti-skid pin 32 from the ice and snow surface.
- the anti-skid pin 32 sharply tilts rearward in the traveling direction of the vehicle, and the jaw 22 a of the enlarged-diameter neck portion 22 comes into contact with the opening edge 12 a of the cylinder 12.
- the enlarged diameter neck portion 22 cannot be immersed in the cylinder 12, and the anti-slip pin 32 bites into the water and snow surface to obtain a large braking force.
- the anti-slip pin 32 Since the maximum diameter of the enlarged portion 20 is set to be substantially the same as the inner diameter of the expanded cylinder portion 12B of the cylinder 12, the anti-slip pin 32 is When force is applied, it tilts smoothly with the largest phantom of the enormous part 20 as a fulcrum.
- the operation at the time of braking has been described, but the same applies at the time of acceleration or at the time of starting on a slope.
- the tread portion 11 d still grips the road surface when accelerating and starting, so that a large horizontal force is not applied to the anti-skid pin 32, and the cylinder 1 It does not sink into 2 and does not damage the road surface.
- the enlarged portion 20 of the anti-slip pin 32 is formed to be thick in the axial direction, deformation and breakage of the enlarged portion 20 can be prevented.
- the shaft 18 can be made thicker without increasing the size of the cylinder 12, and the loss of the shaft 18 can be prevented.
- a corner from the jaw 22a of the anti-slip pin 32 to the enlarged neck 22 may be formed on the round surface.
- the anti-slip pin 32 sinks into the cylinder 12.
- the tire 11 is rotating at a high speed, so that the anti-skid pin 32 moves forward and backward and the centrifugal force. Is quickly removed.
- the enlarged portion 20 of the anti-slip pin 32 is formed in an inverted trapezoidal cross section, and the maximum diameter portion is enlarged. 20 is the same as the above embodiment except that the upper edge is 20.
- the anti-slip pin unit 10 shown in FIG. 7 since the enlarged portion 20 is guided in the enlarged cylinder portion 12 B at the time of constant speed traveling, it does not move in the horizontal direction without being displaced in the cylinder 12. Stick out. On the other hand, when a horizontal force is applied to the anti-slip pin 32 during braking or the like, the anti-slip pin 32 smoothly tilts around the maximum diameter portion as a fulcrum (see FIG. 8).
- the side wall surface of the enlarged portion 20 is formed into a ⁇ -plane arc shape, and the middle part of the side wall surface is a maximum diameter portion.
- a flat dish-shaped cap 12 is arranged on the enlarged portion 20 so that the lower portion of the spring 30 fits in the cap 15.
- the cap 15 has a disk portion 15a and an upright portion 15b.
- the shaft 18 is formed in a conical shape whose diameter is reduced from the enlarged portion 20 toward the jaw 22 a of the enlarged neck 22.
- the connecting base of the shaft 18 with the enlarged portion 20 is formed slightly smaller than the through hole 16 a of the retaining portion 16.
- the lower part of the spring 30 can be disengaged from the upper surface of the enlarged part 20 even when the anti-slip pin 32 is tilted.
- the anti-skid pin 32 is easily urged in the protruding direction, and the enlarged portion 20 is stopped so that the axis of the cylinder 12 is aligned. Press it against 16.
- the enlarged diameter cylinder portion 12B of the cylinder 12 and the contracted cylinder portion 12A are formed so as to have different outer diameters.However, the outer diameter is the same and the inner diameter is different. It may be formed. 2 Alternatively, the inner diameter may be the same.
- the protrusion may be integrally formed instead of the chip 24.
- the cylinder and the anti-slip pin of the anti-slip pin unit may be formed of ceramic or synthetic resin material.
- the present invention is configured as described above, and has the following remarkable effects.
- the shaft connecting the enlarged neck portion and the enlarged portion can be made thicker, and the strength can be increased.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90908641A EP0431179B1 (en) | 1989-06-10 | 1990-06-06 | Stud unit and skid-proof tire using the same |
AT9090908641T ATE104606T1 (de) | 1989-06-10 | 1990-06-06 | Stifteinheit sowie ein mit dieser einheit ausgeruesteter rutschhemmender reifen. |
DE69008318T DE69008318T2 (de) | 1989-06-10 | 1990-06-06 | Stifteinheit sowie ein mit dieser Einheit ausgerüsteter rutschhemmender Reifen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1/147184 | 1989-06-10 | ||
JP1147184A JPH0771885B2 (ja) | 1989-06-10 | 1989-06-10 | 防滑タイヤ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990014966A1 true WO1990014966A1 (fr) | 1990-12-13 |
Family
ID=15424470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/000740 WO1990014966A1 (fr) | 1989-06-10 | 1990-06-06 | Clou antiderapant et pneu antiderapant pourvu de ce clou |
Country Status (6)
Country | Link |
---|---|
US (1) | US5198049A (ja) |
EP (1) | EP0431179B1 (ja) |
JP (1) | JPH0771885B2 (ja) |
CA (1) | CA2031193C (ja) |
DE (1) | DE69008318T2 (ja) |
WO (1) | WO1990014966A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60206663T2 (de) * | 2002-03-29 | 2006-06-22 | Pirelli Pneumatici S.P.A. | Verfahren und vorrichtung zur herstellung eines spike-reifens |
WO2007037778A2 (en) * | 2004-09-03 | 2007-04-05 | Societe De Technologie Michelin | Improved method for curing a thick, non-uniform rubber article |
US20080149240A1 (en) * | 2006-12-20 | 2008-06-26 | Luneau Michael J | Method for curing non-uniform, rubber articles such as tires |
KR100892294B1 (ko) * | 2007-11-15 | 2009-04-07 | 한국타이어 주식회사 | 차량용 공기입 타이어 |
US8082961B2 (en) * | 2007-12-31 | 2011-12-27 | The Goodyear Tire & Rubber Company | Tire with retractable stud |
JP5091349B2 (ja) * | 2008-05-22 | 2012-12-05 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | 硬化用ピン材料の最適化 |
NO330285B1 (no) | 2009-05-05 | 2011-03-21 | Hans Husevag | Pigg til dekk |
US8186985B2 (en) * | 2009-12-17 | 2012-05-29 | The Goodyear Tire & Rubber Company | Mold apparatus for forming grooves in tire shoulder |
WO2013029061A1 (en) * | 2011-08-25 | 2013-02-28 | Reedy Henry J | Dynamic traction cleated tires |
US9290057B2 (en) | 2011-10-31 | 2016-03-22 | Innovative Technologies, Llc | All season safety tire |
US9278584B2 (en) | 2011-10-31 | 2016-03-08 | Innovative Technologies, Llc | All-weather tire |
US10981423B2 (en) | 2015-12-29 | 2021-04-20 | Bridgestone Americas Tire Operations, Llc | Tire projection and housing system |
CN107364287B (zh) * | 2017-06-22 | 2020-04-28 | 安徽风向标清洁设备有限公司 | 扫地机车轮 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583462A (en) * | 1969-05-13 | 1971-06-08 | Vincent A Langelo | Anti-skid tire apparatus |
JPS59186704A (ja) * | 1983-04-08 | 1984-10-23 | Hiroo Hojo | 防滑タイヤ |
JPH01226408A (ja) * | 1988-03-03 | 1989-09-11 | Hiroo Hojo | スパイクタイヤ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE351811B (ja) * | 1971-04-20 | 1972-12-11 | Fagersta Ab | |
DE2204074A1 (de) * | 1972-01-28 | 1973-08-02 | Karlheinz Dorr | Gleitschutzkoerper fuer fahrzeugluftreifen |
JPS5914364B2 (ja) * | 1980-04-07 | 1984-04-04 | 住友ゴム工業株式会社 | スノ−タイヤ用スパイク |
EP0095007B1 (de) * | 1982-05-21 | 1986-12-03 | STAHLGRUBER Otto Gruber GmbH & Co. | Gleitschutzelement für Kraftfahrzeugreifen |
JPS60119605U (ja) * | 1984-01-23 | 1985-08-13 | 相互発条株式会社 | スパイクタイヤ埋込用スパイクピン |
JPS62227805A (ja) * | 1986-03-31 | 1987-10-06 | Agency Of Ind Science & Technol | スパイクタイヤ |
FI78423C (fi) * | 1987-02-27 | 1989-08-10 | Neste Oy | Holkdubb anordnad i ett fordonsdaeck. |
-
1989
- 1989-06-10 JP JP1147184A patent/JPH0771885B2/ja not_active Expired - Lifetime
-
1990
- 1990-06-04 US US07/533,267 patent/US5198049A/en not_active Expired - Fee Related
- 1990-06-06 EP EP90908641A patent/EP0431179B1/en not_active Expired - Lifetime
- 1990-06-06 DE DE69008318T patent/DE69008318T2/de not_active Expired - Fee Related
- 1990-06-06 WO PCT/JP1990/000740 patent/WO1990014966A1/ja active IP Right Grant
- 1990-06-06 CA CA002031193A patent/CA2031193C/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583462A (en) * | 1969-05-13 | 1971-06-08 | Vincent A Langelo | Anti-skid tire apparatus |
JPS59186704A (ja) * | 1983-04-08 | 1984-10-23 | Hiroo Hojo | 防滑タイヤ |
JPH01226408A (ja) * | 1988-03-03 | 1989-09-11 | Hiroo Hojo | スパイクタイヤ |
Non-Patent Citations (1)
Title |
---|
See also references of EP0431179A4 * |
Also Published As
Publication number | Publication date |
---|---|
US5198049A (en) | 1993-03-30 |
EP0431179A4 (en) | 1991-07-31 |
DE69008318D1 (de) | 1994-05-26 |
CA2031193A1 (en) | 1990-12-11 |
CA2031193C (en) | 1995-05-02 |
DE69008318T2 (de) | 1994-09-15 |
EP0431179B1 (en) | 1994-04-20 |
EP0431179A1 (en) | 1991-06-12 |
JPH0314705A (ja) | 1991-01-23 |
JPH0771885B2 (ja) | 1995-08-02 |
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