JP5130585B2 - Spike pad unit for tire mounting - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a tire mounting spike pad unit that can be mounted on a normal tire to achieve slip resistance equivalent to that of a spike tire or a studless tire.

  As means for realizing safe driving of a vehicle on an icy snow road, it is common to use a studless tire or to attach a metal tire chain. In recent years, lightweight rubber chains using synthetic rubber and synthetic resin with excellent durability and strength have also been developed, and various measures have been taken such as the mesh shape and the placement of spikes, climbing performance, braking performance, etc. (See, for example, Patent Document 1).

  However, for example, a studless tire requires an exchanging operation for attaching / detaching a normal tire in advance, and there is a problem that switching between running on a general road and running on an icy / snowy road is complicated and cannot be performed flexibly. In addition, because of the complexity of the switching described above, studless tires are often stored separately as winter tires attached to another tire wheel during off-season, etc., which requires extra storage space. There is also. On the other hand, so-called chains are easier to switch than studless tires, but there is a problem that the work is complicated in attaching the chain such as setting with a tool.

  JP, 2000-309213, A 2nd page-6th page

  Accordingly, the present invention has been made in view of the above-described conventional problems, and can easily perform spike tires and studless tires by simply attaching a spike pad unit to a normal tire without performing an operation of detaching and attaching a normal tire. It aims at providing the spike pad unit for tire mounting which can provide antiskid performance equivalent to.

  The tire mounting spike pad unit of the present invention has a cross section formed in an arc shape so as to be in close contact with the tread surface of the tire, and a plurality of substantially rectangular spike pads with spike pins arranged on the outer surface of the arc; A connecting lever that is provided at a substantially right angle to the spike pad surface on the side of the vehicle outside the spike pad when the tire is mounted, and that has a portion serving as a fulcrum in the middle, and a portion serving as the fulcrum of the connecting lever. A ring-shaped outer base having a plurality of fulcrum holes on the circumference for fixing and supporting the fulcrum and having a circular hole having substantially the same diameter as the inscribed disk-shaped inner base, and formed in the outer base A circular plate having an outer diameter substantially the same as the circular hole, and inscribed in a rotatable manner with respect to the outer base, and standing on a plate surface that is outside the vehicle when the tire is mounted on the disk Flanged surface A part from the fulcrum of the connecting lever to the end opposite to the spike pad is inserted into a plurality of elongated holes formed in the direction, respectively, in a circumferential direction with respect to the outer base An inner base capable of rotating the connecting lever around a fulcrum on the outer base by relatively rotating, pressing the spike pad against a tread surface of a tire, and tightly fixing it; Fixing means for fixing the rotation in a state where the spike pad is fixed to a tread surface of a tire when the inner base is rotated relative to the outer base in a circumferential direction. It is characterized by that.

  According to the above configuration, the necessary and sufficient portion of the tire tread surface is covered with the spike pad instead of the entire surface of the tire tread, so it can be mounted from the side of the tire and can be mounted like a conventional chain. It is not necessary to move or jack up such a vehicle and can be easily mounted. Moreover, since the spike pad that exhibits the anti-slip performance is firmly pressed against the tire by the fixing means and is in close contact with the tire, appropriate anti-slip performance can be imparted.

  The spike pad unit for tire mounting according to the present invention is the spike pad unit for tire mounting according to claim 1, wherein the spike pad is provided with a non-slip process on a surface thereof in close contact with the tread surface of the tire. It is characterized by being.

  According to the above configuration, it is possible to prevent the spike pad from shifting or coming off, so that it is possible to impart higher anti-slip performance when the tire mounting spike pad unit is mounted on a tire and traveling.

  Further, the tire mounting spike pad unit according to the present invention is the tire mounting spike pad unit according to claim 1 or 2, wherein the connecting lever is located on a side of the spike pad that is outside the vehicle when the tire is mounted. It is attached so that rotation is possible.

  According to the above configuration, when the spike pad is pressed against the tread surface of the tire by the rotation of the connecting lever, the spike pad slightly rotates, so that the curved surface of the tread surface and the arc of the spike pad are in close contact with each other, It is possible to prevent the spike pad from shifting or coming off. Therefore, it is possible to impart higher anti-slip performance when the tire mounting spike pad unit is mounted on a tire and traveling.

  Further, a tire mounting spike pad unit according to the present invention is the tire mounting spike pad unit according to claim 1 or 2, wherein the connecting lever is bent at a portion serving as a fulcrum in the middle. The shape is a letter shape, and the length from the portion serving as the fulcrum to the end opposite to the spike pad is longer than the length from the portion serving as the fulcrum to the spike pad.

  According to the above configuration, due to the lever principle, the force for rotating the connecting lever is effectively transmitted as the force for pressing the spike pad against the tread surface. That is, when the spike pad is pressed against the tread surface by relatively rotating the inner base and the outer base, the spike pad can be firmly adhered with a small rotational force.

  The spike pad unit for tire mounting according to the present invention is the spike pad unit for tire mounting according to any one of claims 1 to 4, wherein the fixing means pushes the spike pad against the tread surface of the tire. It is characterized by comprising a ratchet that only allows rotation in the direction of contact, close contact, and fixation, and inhibits rotation in the reverse direction.

  According to the said structure, even if the outer diameter of the tire at the time of mounting | wearing differs, such as a difference in a dimension and a wear condition, a spike pad can be pressed against a tread surface with an appropriate force flexibly, and it can adhere and fix.

  The tire mounting spike pad unit according to the present invention is the tire mounting spike pad unit according to any one of claims 1 to 5, wherein the inner base and the outer base are disks of the inner base. A plurality of recesses formed at equal intervals on the outer periphery of the plurality of circles having a substantially H-shaped cross section and the height of the shaft portion forming the recesses being substantially the same as the plate thickness of the inner base and the outer base. The unit is configured by engaging the shaft portion of the columnar pin.

  According to the above configuration, the inner base and the outer base can be rotated relative to each other in the circumferential direction with a simple configuration, and at the time of rotation, the inner base and the outer base can be displaced or disengaged in the direction of the rotation axis related to the rotation. There can be no unit. Therefore, the assembly at the time of manufacture can be performed easily.

  The spike pad unit for tire mounting according to the present invention is the spike pad unit for tire mounting according to claim 6, wherein the outer base is on an arbitrary circumference of a circular hole having substantially the same diameter as the inner base. The cylindrical pin has a notch for assembly through which the outer diameter of the cylindrical pin can pass.

  According to the said structure, the unit comprised by an inner side base and an outer side base can be assembled easily.

  The tire mounting spike pad unit according to the present invention is the tire mounting spike pad unit according to claim 6 or 7, wherein the unit constituted by the inner base and the outer base extends in a circumferential direction thereof. It has the stopper mechanism for restrict | limiting the rotation range which concerns on relative rotation of these.

  According to the above configuration, since the rotation range is limited, the cylindrical pin that is once inserted from the assembly hole and engaged with the recess formed on the circumference of the disk of the inner base is provided. It will not fall off, and the assembled unit will not be disassembled or dropped when it is installed or used.

  As described above, according to the spike pad unit for mounting a tire according to the present invention, an anti-slip performance equivalent to that of a spike tire or a studless tire can be imparted only by mounting the unit without performing an operation of detaching a normal tire. be able to. In addition, the installation of the unit does not require special tools or work, and it is not necessary to move or jack up the vehicle, so that it is possible to easily switch to the spike tire.

  Hereinafter, a spike pad unit for mounting a tire according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an external appearance of a tire mounting spike pad unit according to an embodiment of the present invention. The tire mounting spike pad unit 100 mainly includes a spike pad 10, a connecting lever 20, an outer base 30, an inner base 40, a ratchet portion 50, a cylindrical pin 60, a stopper 70, and the like.

  The spike pad 10 is a substantially rectangular pad whose cross section is formed in an arc shape so as to follow the arc of the tread surface of the tire 200, and an appropriate tread pattern is formed on the outer surface, and spikes are formed at appropriate locations. Pins 11 are arranged. The spike pad 10 is connected to the connecting lever 20 via the connecting lever mounting portion 12. The spike pad 10 is configured to be rotatable at a spike pad rotating unit 14 about a rotation axis that is parallel to the rotation axis of the tire. When pressed against the tread surface of the tire 200, the tire and the pad are in close contact with each other.

  FIG. 2 is a perspective view showing an appearance of a spike pad of the tire mounting spike pad unit according to the embodiment of the present invention. A fixing fitting 15 is formed at the opposite end of the connecting lever mounting portion 12 of the spike pad 10. The fixing bracket 15 is slightly curved toward the connecting lever mounting portion 12 side, is in close contact with the bulge on the vehicle inner side surface of the tire 200, and is shaped so as to properly sandwich the tire tube together with the connecting lever mounting portion 12. ing. Therefore, as will be described later, when the inner base 40 is rotated with a strong force and the connecting lever mounting portion 12 side of the spike pad 10 is strongly pulled toward the center of the tire, the fixing bracket 15 becomes an appropriate hook, The pad does not open to the outside. By manufacturing units with different widths of spike pads 10 according to the tire standards, even if the tires have different thicknesses, the fixing bracket 15 is accurately caught by the bulge inside the tire, and the pads are firmly attached to the tire. It is possible to select a tire-mounted spike pad unit that can be fixed to the tire. Further, on the surface of the spike pad 10 that comes into contact with the tire (the back side of the spike surface), there is a non-slip processing portion 16 in order to prevent the pad from slipping during traveling.

  In the present embodiment, a tire mounting spike pad unit having five spike pads 10 will be described. However, the number of spike pads 10 is not limited, and any anti-slip performance can be exhibited. Any number of sheets may be used.

  The connecting lever 20 is composed of a connecting lever A21 and a connecting lever B24 (see FIG. 3), and has a substantially U-shaped shape that can rotate with the connecting lever fulcrum 27 as a fulcrum. A part of the connecting lever B24 is configured to enter an inner base flange side surface hole 43 of the inner base 40 described later.

  The outer base 30 is a ring-shaped plate that inscribes the inner base 40, and is integrated with the inner base 40 so as to be rotatable by a cylindrical pin 60 described later.

  The inner base 40 is a disc inscribed in the outer base 30, and an inner base flange portion 42, an inner base flange side hole portion 43, and an inner base rotation gripping portion 44 are formed on the disc. The outer base 30 and the inner base 40 are relatively rotatable with the center of the disk of the inner base 40 as a rotation axis. In this embodiment, when the inner base 40 is rotated clockwise with respect to the outer base 30, the end of the inner base flange side hole 43 pushes up the connecting lever 20. It rotates clockwise, and finally the spike pad 10 is pressed against the tread surface of the tire 200. When the inner base 40 is rotated, the inner base rotation grip 44 may be manually rotated. However, the inner base rotation handle 400 as shown in FIG. You may make it engage with the recessed part 45 and make it rotate with a handle.

  In addition, the outer base 30 and the inner base 40 are each formed with a stopper 70 for restricting the range of rotation when they rotate relatively. The stopper 70 and the cylindrical pin 60 will be described in detail in the description of the assembly procedure of the tire mounting spike pad unit 100.

  Next, FIG. 3 is a front view of the appearance when the tire mounting spike pad unit according to the embodiment of the present invention is mounted. The stopper 70 is configured such that a reverse-projecting stopper projection 46 formed on the inner base 40 protrudes from the hole portion, so that only the range indicated by R in the drawing can be rotated. However, adjustment is made in advance so that the spike pad 10 can be accurately adhered and fixed to the tread surface of the tire 200 by rotating the inner base 40 clockwise in this rotation range.

  Next, FIG. 4 and FIG. 5 are diagrams for explaining an assembling method at the time of manufacturing the spike pad unit for mounting the tire in the embodiment of the present invention. First, the outer base 30 and the inner base 40 are integrated with each other by a cylindrical pin 60 disposed between them without being disengaged from each other. A method of assembling this part will be described.

  Before that, the shape of the cylindrical pin 60 will be described. FIG. 6 is a view for explaining the shape of a cylindrical pin used in the tire mounting spike pad unit according to the embodiment of the present invention. A cylindrical pin 60 having a shape as shown in (a) is a cylindrical pin having an outer diameter L having a substantially H-shaped cross section as shown in (b), and a recess 61 is formed between the disc and the disc. Is done. When the portion connecting the discs is referred to as a cylindrical pin shaft portion 62, the height h of the cylindrical pin shaft portion 62 is such that the outer base 30 and the inner base 40 are slidable. And so as to be substantially the same.

  As shown in FIG. 5, first, the outer base 30 and the inner base 40 are flush with each other so that one of the outer base assembly notch 32 of the outer base 30 and one of the inner base recesses 41 formed in the inner base 40 face each other. To place. Then, when the cylindrical pin 60 is inserted from the outer base assembling cutout 32 and is inserted halfway (recess 61), the inner pin base 62 is just engaged with the inner base recess 41. Move to the side. Thereafter, the inner base 40 is relatively rotated to a position where the next inner base recess 41 faces the outer base assembly notch 32. In the same procedure, five cylindrical pins 60 can be disposed between the outer base 30 and the inner base 40.

  After the five cylindrical pins 60 are arranged in the five inner base recesses 41, the stopper mounting pins 71 are inserted into the outer base assembly cutouts 32 from the back side, and the stoppers 70 are inserted into the pins. Fix it so that it can rotate. Since the stopper 70 is formed with an elongated hole, the stopper protrusion 46 formed on the inner base 40 is projected from the hole, and the protrusion slides in the hole when the inner base 40 rotates. Assemble. In this state, both the outer base 30 and the inner base 40 are relatively rotatable, and neither is displaced or removed in the rotation axis direction. Further, it can be rotated only within a range limited by the stopper 70.

  Further, a ratchet portion 50 is formed at an arbitrary position of the outer base 30, and a ratchet lever 51 is formed at a position facing the inner base 40. Since the ratchet lever 51 is always pressed against the ratchet 50 by the spring 52, the inner base 40 can rotate clockwise, but cannot rotate counterclockwise. Therefore, if the inner base 40 is rotated as strongly as possible, the spike pad 10 is more firmly attached and fixed to the tread surface of the tire.

  Next, returning to FIG. 4, in the connecting lever mounting portion 12 formed in the spike pad 10, the connecting lever mounting hole portion 13 and the connecting lever A hole portion 22 of the connecting lever A 21 are made to coincide with each other. 302 and a retaining ring 303 are rotatably fixed. An I-shaped connecting lever A fulcrum projection 23 is formed in the vicinity of the opposite end of the connecting lever A21. After this is inserted into the outer base hole 31, the connecting that matches the protruding shape is formed. It fits into the connecting lever B fulcrum hole 25 of the lever B24. At that time, the connecting lever B24 is assembled so as to enter the center portion of the inner base 40 from the inner base flange side hole 43 of the inner base 40. In the vicinity of the end of the connecting lever B24 opposite to the connecting lever B fulcrum hole 25, the end of the connecting lever B24 is disengaged from the connecting lever B fulcrum hole 25 even if the inner base 40 rotates too much. The connecting lever B protrusion 26 (see FIG. 3) is formed so that there is no such a problem.

  The assembly of the tire mounting spike pad unit is completed by the above procedure. In FIG. 4, only one spike pad 10 is shown for convenience of explanation, but it goes without saying that five spike pads 10 are assembled in the same procedure as described above. When the tire mounting spike pad unit 100 is detached from the tire 200, the ratchet lever 51 is released to release the contact and fixation of the spike pad 10.

  The tire mounting spike pad unit 100 assembled in the above procedure is stored in an assembled state. At the time of mounting on the tire 200, the spike pad 10 is mounted by pressing the unit horizontally from the side surface of the tire 200 with the spike pad 10 slightly away from the tread surface, and the inner base 40 is rotated strongly in the clockwise direction. All the spike pads 10 are closely attached.

  By the way, normally, when the vehicle travels, the tire may dent inside depending on the unevenness of the road surface. In the tire mounting spike pad unit according to the embodiment of the present invention, the connection lever 20 is strongly pressed by the rotation of the inner base 40, and the rotation of the connection lever 20 in the direction in which the tire is recessed becomes free. Therefore, the spike pad 10 follows the tire depression. Accordingly, the spike pad 10 is not displaced or detached during traveling, and the entire unit can be made robust and durable.

  As described above, according to the spike pad unit for mounting a tire according to the present invention, an anti-slip performance equivalent to that of a spike tire or a studless tire can be imparted only by mounting the unit without performing an operation of detaching a normal tire. be able to. In addition, the installation of the unit does not require special tools or work, and it is not necessary to move or jack up the vehicle, so that it is possible to easily switch to the spike tire. In particular, since it can be mounted from the side of the tire, it can be easily mounted by a simple operation even when the vehicle gets stuck on a snowy road where it is difficult to mount a chain or the like.

  The spike pad unit for tire mounting according to the present invention has an effect that it is possible to easily provide anti-skid performance equivalent to that of a spike tire or a studless tire simply by mounting, and as a simple ice / snow road countermeasure equipment Useful.

  It is a perspective view which shows the external appearance at the time of mounting | wearing of the spike pad unit for tire mounting in embodiment of this invention.   It is a perspective view which shows the external appearance of the spike pad of the spike pad unit for tire mounting in embodiment of this invention.   It is the figure which looked at the external appearance at the time of mounting | wearing of the spike pad unit for tire mounting in embodiment of this invention from the front.   It is a figure for demonstrating the assembly method at the time of manufacture of the spike pad unit for tire mounting in embodiment of this invention (the whole unit).   It is a figure for demonstrating the assembly method at the time of manufacture of the spike pad unit for tire mounting in embodiment of this invention (expansion of an outer base and an inner base part).   It is a figure for demonstrating the shape of the cylindrical pin used for the spike pad unit for tire mounting in embodiment of this invention.   It is a perspective view which shows the shape of the inner side base rotation handle of the spike pad unit for tire mounting in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Spike pad 11 Spike pin 12 Connecting lever attaching part 13 Connecting lever attaching hole 14 Spike pad rotating part 15 Fixing bracket 16 Anti-slip processing part 20 Connecting lever 21 Connecting lever A
22 connecting lever A hole 23 connecting lever A fulcrum projection 24 connecting lever B
25 connecting lever B fulcrum hole 26 connecting lever B protrusion 27 connecting lever fulcrum 30 outer base 31 outer base hole 32 outer base assembly notch 40 inner base 41 inner base recess 42 inner base flange 43 inner base flange side surface Hole 44 Inner base rotation gripping portion 45 Rotating handle recess 46 Stopper protrusion 50 Ratchet portion 51 Ratchet portion lever 52 Spring 60 Columnar pin 61 Columnar pin recess 62 Columnar pin shaft portion 70 Stopper 71 For stopper mounting Pin 72 Retaining ring 100 Spike pad unit for tire mounting 200 Tire 301 Pin 302 Washer 303 Retaining ring 400 Inner base rotation handle

Claims (8)

A plurality of substantially rectangular spike pads having a cross section formed in an arc shape so as to be in close contact with the tread surface of the tire, and having spike pins arranged on the outer surface of the arc;
A connecting lever that is attached to the spike pad surface at a substantially right angle on the side that is the vehicle outer side when the tire is mounted on the spike pad, and has a portion that becomes a fulcrum in the middle,
There are a plurality of fulcrum holes on the circumference for fixedly turning the fulcrum part of the connecting lever as a fulcrum, and a circular hole having substantially the same diameter as the inscribed disk-shaped inner base. A ring-shaped outer base;
A disc having an outer diameter substantially the same as the circular hole formed in the outer base and inscribed in a rotatable manner with respect to the outer base, and is outside the vehicle when the tire is mounted on the disc. A part from the fulcrum of the connecting lever to the end opposite to the spike pad is inserted into each of a plurality of elongated holes formed in the circumferential direction of the flange surface upright on the plate surface. , By rotating relative to the outer base in the circumferential direction, the connecting lever is rotated around a fulcrum on the outer base, the spike pad is pressed against the tread surface of the tire, With an inner base that can be fixed,
Fixing means for fixing the rotation in a state where the spike pad is fixed to a tread surface of a tire when the inner base is rotated relative to the outer base in a circumferential direction. A spike pad unit for mounting tires.   The spike pad unit for tire mounting according to claim 1, wherein the spike pad is provided with a non-slip process on a surface that is in close contact with a tread surface of the tire.   The spike pad unit for tire mounting according to claim 1 or 2, wherein the connecting lever is rotatably attached to a side of the spike pad that is outside the vehicle when the tire is mounted.   The connecting lever has a generally U-shaped shape bent at a portion serving as a fulcrum in the middle, and the length from the portion serving as the fulcrum to the spike pad determines from the portion serving as the fulcrum to the spike pad. The spike pad unit for mounting a tire according to claim 1 or 2, wherein the length to the end opposite to the end is longer.   The said fixing means is configured by a ratchet that allows only rotation in a direction in which the spike pad is pressed against, adhered to, and fixed to a tread surface of a tire and inhibits rotation in the reverse direction. The spike pad unit for tire mounting according to any one of claims 1 to 4.   The inner base and the outer base have a plurality of recesses formed at equal intervals on the outer periphery of the inner base disk, and a shaft portion having a substantially H-shaped cross section and forming a recess has a height that is the inner side. The tire according to any one of claims 1 to 5, wherein a unit is configured by engaging the shaft portions of a plurality of cylindrical pins substantially the same in thickness as the base and the outer base. Spike pad unit for wearing.   The said outer base has the notch part for an assembly which can pass the outer diameter of the said cylindrical pin on the arbitrary circumference | surroundings of the circular hole of the substantially same diameter as the said inner base. Spike pad unit for tire mounting.   The unit comprising the inner base and the outer base has a stopper mechanism for limiting a rotation range related to relative rotation in the circumferential direction. The tire mounting spike pad unit.

Images