JP2015013486A - Tire chain fitting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting tool that allows a tire chain for preventing a vehicle from slipping on ice and snow roads to be easily and quickly fitted to the vehicle regardless of age or gender.SOLUTION: Adopted is following means: the tire chain fitting tool, as a basic configuration, has an arm part 3 for holding a chain from a tire width direction, a fastening part 4 for fastening the arm part and a tire chain suspending part 11 for suspending ends of the tire chain, where the arm part is arranged at both ends of the fastening part and the tire chain suspending part is arranged at a side opposite to a side contacting the tire of the arm part.

Description

  The present invention relates to an attachment that enables easy and quick installation of an anti-slip tire chain on an icy and snowy road in an automobile, regardless of gender.

  Spike tires have previously been a way to prevent slipping on snowy roads. However, the “Law Concerning the Prevention of Spike Tire Dust” can no longer be used except for special exceptions such as emergency vehicles, and after the enforcement of such regulations, studless tires and tire chains are used as the main snow road countermeasures. It has been.

Studless tires have been researched on materials such as rubber and tread patterns, and their performance has been improved year by year. However, studless tires have many problems. For example, studless tires polish the snowy road surface, and slip accidents due to the generation of mirror-like road surfaces (mirror burn) at intersections and slopes are also likely to occur. In a warm area where there is no snowfall, when the snow surface rarely accumulates on the road surface, the road surface temperature is below the freezing point, so it deviates from the tire operating temperature range. It is a place. In addition, on road surfaces where new snow is stepped on, the driving force of a tire chain cannot be exhibited.

  On the other hand, tire chains tend to decrease in utilization rate and equipment rate with the spread of studless tires due to noise, vibration, and troublesomeness at the time of wearing. However, when it is not in use, it can be prepared in the trunk, etc., so it can cope with changes in road conditions and sudden snowfall, as well as driving force in heavy snow areas, like buses and trucks In a vehicle that requires a large driving force, a tire chain is a necessity. Moreover, it becomes possible to deal with snow roads of all stages by using in combination with studless tires.

  To install the tire chain, stop the car in a safe place, jack it up and wrap it around the tire and fix it, or lay it in front of or behind the tire and wind the car forward or backward, It is common to fix this.

  However, mounting a tire chain has a big problem that it takes time. That is, when winding a chain around the tire, the tire is naturally round and does not get caught, and the chain is metallic and relatively heavy, so put your hand between the tire house and the tire and wind the chain evenly. The work is not easy, and if it is worn at night, it will take a lot of work. Especially in recent passenger cars, the gap between the tire house or fender and the tire is narrow due to the design, etc., the flatness of the tire is small, it is thin relative to the wheel outer diameter, the width is wide, etc. , It may be more difficult to wear. Also, for example, when a person is in the rear seat by driving the rear wheel, the vehicle body is sinking, so the gap between the tire house or fender and the tire is further narrowed, and the snow falls and gets out of the car. There must be.

  Such a workability problem can be solved by jacking up the vehicle body and attaching a tire chain. However, when the road surface is frozen or inclined, there is a risk that the jack may come off, and the in-vehicle stationary jack has a problem in that it requires separate work on the left and right sides, and it takes time to install.

  Therefore, in order to eliminate these inconveniences, it can be said that a technique for mounting the tire chain more easily and quickly is required.

In order to solve such a problem, various techniques have been conventionally provided. For example, an invention (see Patent Document 1) in which a side portion of a chain is held by a plurality of stays extending from a center portion of a tire wheel and the entire tire chain is stably held has been proposed and has become a publicly known technique.
Also, an invention (refer to Patent Document 2) that is a bellows-type tire chain that can be easily mounted by being compressed when stored and extending by one rotation when used (see Patent Document 2) has become a publicly known technique. .

  However, in the invention of Document 1, the attachment device itself must be continuously attached to the tire, the amount attached to the tire is increased, and the durability of the attachment device must be equivalent to that of the tire chain. It was necessary to make it. Further, in the invention of Document 2, it can be said that the mounting is completed only by rotating the tire once and it can be said that it is easy to mount, but a dedicated tire chain must be used, and it is easy to mount a tire chain that is generally popular. Can not. For this reason, the problem has not been solved.

  In order to solve these problems, the inventor of the present application pays attention to the relationship between the positional relationship between the tire and the chain that is required when the tire chain is mounted and the self-weight balance due to the symmetrical shape of the chain. This leads to the proposal of “material”.

Special table hei 9-510417 JP-A-8-282226

In view of the above problems, the present invention aims to provide a tire chain mounting tool for easily and quickly mounting a normal tire chain.

  A tire chain fixture according to the present invention has an arm portion for holding a tire from the width direction of the tire, a fixing portion for fixing the arm portion, and a tire chain suspension portion for suspending an end portion of the tire chain. The arm portion is installed at both ends of the fixed portion, and the tire chain suspension portion is disposed on the side of the arm portion facing the tire contact side.

  The present invention also provides an arm portion for holding the tire in the width direction of the tire, a fixing portion for fixing the arm portion and the arm portion holding portion, and a tire chain suspension portion for suspending an end portion of the tire chain. And a holding force adjusting portion for closely contacting the arm portion with the tire, one arm portion is installed at one end of the fixed portion, and the other arm portion is an arm portion via the holding force adjusting portion. The arm part holding part is fixed to the holding part, the arm part holding part is installed at the other end of the fixing part, and the tire chain suspension part is arranged on the side facing the tire contact side of the arm part.

  In the present invention, the clamping force adjusting unit includes a tire size adjusting unit that adjusts a distance between the arm portion and a side surface of the tire according to a width of the tire.

  According to the present invention, the tire chain holding portion is located at a substantially equidistant position from the center in the width direction of the tire in a state where the tire is sandwiched by the first arm portion.

  Further, the present invention has a fixing portion length adjusting portion that adjusts the length in the longitudinal direction of the fixing portion, and the fixing portion length adjusting portion includes a screw hole extending in the longitudinal direction, a screw portion corresponding thereto, and a longitudinal direction. A means is to have an extending hole and a corresponding pin.

  Further, the present invention has a clamping length adjustment unit that adjusts at least the length in the longitudinal direction of either the arm unit or the holding unit, and the clamping length adjustment unit includes a screw hole extending in the longitudinal direction, Means include a corresponding screw portion, a hole extending in the longitudinal direction, and a corresponding pin.

  According to the tire chain fitting according to the present invention, the tire chain can be easily and quickly attached to the tire, which is provided for the convenience of the user. Specifically, if you get used to it, you can wear it in about 1 minute and 40 seconds together, and even an unfamiliar person can wear it in 2 to 3 minutes if you know the procedure (Table 1). When installing a normal metal tire chain without jacking up, it takes a minimum of 5 minutes for both wheels, even for those who are used to it. It is shortening. The inventor of the present application conducted a simple mounting experiment in order to clarify the effect of shortening the mounting time. This is an experiment in which the inventor of the present application has been working with taxi industry for many years with the cooperation of the same company, and measures the time required for installation including the general public ( Table 1). Table 1 shows the effect of greatly shortening the wearing time, which is the greatest effect of the present invention.

It is a perspective view of the tire chain fixture which concerns on this invention. FIG. 3 is a three-side view of the tire chain fixture according to the present invention. It is a figure of the Example of the tire chain fixture which concerns on this invention. It is a figure of the Example of the tire chain fixture which concerns on this invention. It is a figure of the Example of the tire chain fixture which concerns on this invention. It is a figure of the Example of the tire chain fixture which concerns on this invention. It is a figure of the other Example of the tire chain fixture which concerns on this invention. It is a figure of the other Example of the tire chain fixture which concerns on this invention.

The tire chain fitting according to the present invention is characterized in that the tire chain can be easily and quickly attached to the tire. Embodiments will be described below with reference to the drawings.
It should be noted that the overall shape and the shape of each part of the tire chain fixture shown in the present embodiment are not limited to the embodiments described below, and are within the scope of the technical idea of the present invention, that is, the same operational effects. It can change within the range of the shape and dimension which can exhibit.

The present invention will be described with reference to FIGS.
FIG. 1 shows an overall perspective view of the present invention, and FIG. 2 shows a trihedral view thereof. (A) is a top view, (b) is a front view, and (c) is a side view.
The tire chain fixture 1 includes a frame 2 and a movable arm 6, and a tire size adjusting unit 7, a spring 10, and a tire clamping force adjusting unit 8 that relate the frame 2 and the movable arm 6. The spring 10 is a spring for fixing the movable arm 6 to the frame 2 with elasticity. The spring force only needs to have a force corresponding to the bias from the frame 2 by the tire size adjusting unit 7 or the tire clamping force adjusting unit 8. The tire size adjusting unit 7 is an adjusting unit for adjusting the distance between the movable arm 6 and the tire, and can be finely adjusted with a screw. The tire clamping force adjusting portion 8 is a portion that adjusts the force for pressing the movable arm portion 6 against the tire, and adjusts the pressing force by rotating the screw with the handle 9.

The frame 2 is composed of an iron square bar having a thickness of about 1 cm. The frame 2 has a fixed part 4 at the center and an arm part 3 and an arm part holding part 5 at both ends. The portion from the fixing portion 4 to the arm portion 3 has a shape substantially similar to the shape of the side surface from the tread of the tire, and is in contact with the tire evenly. The portion from the fixed portion 4 to the arm portion holding portion 5 has a shape that allows a certain distance from the movable arm portion 6. This is because the distance between the movable arm portion 6 and the arm portion holding portion 5 varies depending on the tire size or the tightening operation of the tire. There is a tire chain suspension portion 11 in a portion near the fixing portion 4 of the arm portion 3 of the frame 2. This is the part that fixes the end of the tire chain. There is also a tire chain suspension portion 11 at a portion of the arm portion holding portion 5 of the frame 2 close to the fixed portion 4, but it is formed by a screw that also serves as the tire size adjustment portion 7. There is a tire clamping force adjusting portion 8 near the tip of the arm holding portion 5, and the movable arm portion 6 is pressed against the tire by rotation of a screw.

  The movable arm portion 6 is a portion that abuts against the side surface of the tire, and generally has the same shape as the side surface shape of the tire. The end closer to the fixed portion 4 is a portion corresponding to the tire size adjusting portion 7 and has a bifurcated fork shape so as to sandwich the tip of the tire size adjusting portion 7, and the bolt 701 is a movable arm portion 6. The positions of the movable arm portion 6 and the arm portion holding portion 5 are defined by abutting on the side surface of the arm (FIG. 2A). A claw for hooking the spring is arranged at the approximate center of the movable arm 6, and one of the springs 10 is fixed. The movable arm portion 6 is pushed by the tire size adjusting portion 7 and the tire clamping force adjusting portion 8 and is pulled toward the arm portion holding portion 5 side by the spring 10 so that the position with the arm portion holding portion 5 is stably maintained. . A recess corresponding to the tire clamping force adjusting portion 8 is provided at the tip of the movable arm portion 6. Due to this depression, the tire clamping force adjusting portion 8 can be stably biased against the movable arm portion 6 (FIG. 2A).

  The tire chain suspension portion 11 is a portion that suspends the end of the tire chain. There is a constriction in the rod-like part near the tip, and the chain at the end of the tire chain is inserted into this constricted part, and the tire chain is suspended. Although it is conceivable to use a hook type, since the tire chain attachment 1 rotates once with the tire when the tire chain is mounted, it is difficult for the end of the tire chain to fall off from the tire chain suspension portion 11 at any position. A constriction structure is suitable for the case. The thickness of the tire chain suspension 11 is preferably slightly smaller than the inner diameter of the chain of the tire chain. This is because if the inner diameter of the tire chain suspension portion 11 is too thin, the end of the tire chain may be detached from the tire chain suspension portion 11 during the tire chain attachment.

Next, a method for fixing the tire chain fixture 1 to the tire will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic cross-sectional view when the tire chain attachment 1 is fixed to the tire 17. FIG. 4 is an operation explanatory diagram of the tire size adjusting unit 7 and the tire clamping force adjusting unit 8.
The tire chain attachment 1 abuts the fixed portion 4 on the tread portion of the tire, and abuts the arm portion 3 and the movable arm portion 6 on the side surface of the tire. At that time, it is desirable that the shape of the contact portion between the arm portion 3 and the movable arm portion 6 is substantially the same as the shape of the side surface portion of the tire. By doing so, the contact area between the tire and the arm 3 is increased, and the tire chain attachment 1 can be more firmly fixed to the tire 17. It is desirable that the arm portion 3 and the movable arm portion 6 substantially include the most raised portion on the side surface of the tire in the contact range. This is because it can cope with the centrifugal force when rotating the tire when the tire chain is mounted.

  After the tire chain fixture 1 is temporarily attached to the tire, the tire clamping force adjusting portion 8 is rotated, whereby the vicinity of the tip of the movable arm portion 6 moves to the tire side, and the arm portion 3 and the movable arm portion 6 The clamping force is increased (FIG. 4 (b)). By this operation, the tire and the tire chain attachment 1 are firmly fixed, and the tire chain attachment 1 is not detached from the tire 17 during the tire chain attachment operation. After the completion of the tire chain mounting, the tire clamping force adjusting unit 8 is rotated in the reverse direction to lower the urging force to the movable arm 6 and the tire chain mounting tool 1 is detached from the tire 17.

The width of the tire varies depending on the type of tire. In general, large vehicles are thicker, such as 195 mm and 205 mm, and light vehicles are thinner, such as 145 mm and 155 mm. In order to deal with various tires, the distance between the arm 3 and the movable arm 6 must be adjustable. Therefore, when attaching the tire chain attachment 1 to the tire 17, it is preferable to change the distance between the arm portion 3 and the movable arm portion 6 according to the width of the tire because the contact area with the tire 17 can be increased. It is. Therefore, by adjusting the tire size adjusting unit 7 and the tire clamping force adjusting unit 8 according to the size of the tire, an operation of moving the entire movable arm 6 parallel to the tire is performed (figure fixing unit 4 (c)). ).
The work is performed by simultaneously rotating the screws of the tire size adjusting unit 7 and the tire clamping force adjusting unit 8. The tire clamping force adjusting unit 8 is performed by turning the handle 9, and the tire size adjusting unit 7 is performed by rotating the bolt 701.

  Next, a procedure for attaching the tire chain 16 will be described with reference to FIGS. FIG. 5A is a diagram in which the tire chain mounting tool 1 and the tire chain 16 are arranged on the tire 17. FIG. 5B is a perspective view of FIG. The vehicle body 19 is omitted. FIG. 6 is a diagram showing, in time series, how the tire chain 16 is wound around the tire 17 by moving the vehicle about 1 meter after the tire chain mounting tool 1 and the tire chain 16 are arranged.

The tire chain attachment 1 is mounted at a position close to the ground contact surface of the tire 17. The position where the tire chain fixture 1 is mounted may be on either the front side or the rear side of the tire, but the tire chain on the side opposite to the side where the tire chain fixture 1 is mounted after the tire chain 16 is wound around the tire 17. Since the ends of 16 are joined, it is better to attach the tire chain attachment 1 to the front side if it is a rear tire and to the rear side if it is a front tire. Then, when the tire chain fixture 1 is removed and the ends of the tire chain 16 are joined, the rear tire can be operated from the rear side, and the front tire can be operated from the front side. It is easy to see and easy to work.
After attaching the tire chain attachment 1 to the tire 17, the end of the tire chain 16 is suspended on the tire chain suspension portion 11 of the tire chain attachment 1. The tire chain 16 extends to the ground in parallel with the tire 17 (FIG. 5B).

  Next, the car is moved so that the tire makes one rotation. Move to the front for the rear tire and back to the front tire. When the vehicle is moved, the tire chain 16 is guided to the tire chain fixture 1 and wound around the tire 17 (FIGS. 6A and 6B). The tire chain side portion 1602 is designed to be shorter than the tire diameter. The tire chain side portion 1602 moves so as to approach the center of the tire 17 both inside and outside the tire 17. As a result, the tire chain side portion 1602 moves to some extent. The tire chain side portion 1602 is pulled with a stronger force at a position closer to the outer periphery of the tire, and the pulling force at a position closer to the center of the tire 17 is weaker. The position naturally converges to the same position (Fig. 6 (c, d)), but the tire chain More is better suspending portion 11 is disposed at a position equidistant from the center in the width direction of the tire, since the position of the earlier snow chains side portion 1602 is both uniform position, which is preferable.

  When the tire has rotated more than one turn, the car is stopped and the tire chain fitting 1 is removed. Since the tire chain 16 is mounted at an appropriate position, the work is completed by joining the ends of the tire chain 16 (FIG. 6 (e, f). Normally, it takes one more than one to mount the tire chain. However, it can be completed in a few minutes by using the tire chain fitting 1. Furthermore, since two rear and front tires can be operated at a time, the time can be further reduced.

  In addition, it is necessary to move the vehicle with extremely high accuracy. Immediately after the vehicle moves, the tire 17 gets over the tire chain fitting 1 and once again rotates, the tire 17 gets over the tire chain fitting 1 again. Therefore, the operator can easily grasp the positional relationship of the tire chain attachment 1 and can move the vehicle with high accuracy.

  As described above, according to the present invention, it is possible to significantly reduce the time for mounting the tire chain, and to reduce the work load on the user.

Moreover, since it may be exposed to water | moisture contents, such as snow, even if it is a short time, it is more suitable if it has waterproofed.
Further, in order to reduce the burden of the tire 17 riding on the tire chain fixture 1, the cross section in the width direction of the frame 2 may be a trapezoidal shape.

Another embodiment will be described with reference to FIG. Parts similar to those in the first embodiment are omitted.
Fig.7 (a) is a figure of the Example corresponding to the width change of a tire. FIG.7 (b) is a figure of the Example corresponding to the difference in the flatness of a tire. FIG. 7C is a structural diagram of the length adjusting unit.
The width of the tire varies greatly depending on the type. If the tire size adjustment unit 7 tries to deal with the difference, there is a possibility that the arm holding unit 5 and the movable arm unit 6 may be extremely open and unstable when the tire width is small. There is. Therefore, by arranging the length adjusting portion 12 in the fixed portion 4 portion of the frame 2, it is possible to cope with many tire widths.

  The length adjusting unit 12 cuts the frame 2, fixes the space with screws and pins, and rotates the screw to finely adjust the length. The frame 2 is provided with two guide pin insertion holes 1205 and one screw hole 1204. One screw direction of the cut surface of the frame 2 and the screw direction of the other cut surface are reversed. The guide pin 1203 is inserted into the guide pin insertion hole 1205 without backlash. The guide pin 1203 prevents the frame 2 from being twisted. The adjustment screw portion 1201 has an adjustment bolt 1203, and the screw direction is reversed at one end and the other end. By rotating the adjustment screw portion 1201 with the adjustment bolt 1203, the interval between the cut surfaces of the frame 2 can be adjusted, and different tire widths can be accommodated (FIG. 7A).

  Further, by cutting the frame 2 at the middle stage of the arm part 3 and the middle stage of the arm part holding part 5 and inserting the structure of the length adjusting part 12, it is possible to deal with tires having different flatness ratios. The flatness of tires is 80, 70, and some tires have 40%. In the case where the flatness is large (the flatness ratio is small), the thickness of the tire is reduced, and the size of the wheel is increased accordingly. Therefore, for example, if the tire chain fitting 1 for an aspect ratio of 80 is to be attached to a tire of an aspect ratio of 40, the tip of the arm portion 3 hits the wheel and damages the wheel. In order to prevent such a situation, the lengths of the arm part 3 and the arm part holding part 5 can be adjusted. By doing so, it can respond to tires with various flatness ratios (FIG. 7B).

Another embodiment will be described with reference to FIG. FIG. 8A is a perspective view of the embodiment. FIG. 8B shows an example of mounting on a tire.
It has a structure specialized for specific tires without adjusting function. The fixing portion 13 may be made of metal, resin, or rubber as long as it can hold the arm portion 15 and can withstand a weight that can be stepped over by a tire. The arm portion 15 is a portion that holds the tire from the side surface, is elastic, and has an elastic force that can be attached to the tire by hand. The tire chain suspension 14 suspends the end of the tire chain 16. The tire chain 16 is wound around the tire 17 by being mounted near the bottom of the tire 17 as in the first embodiment, attaching the tire chain 16, and moving the vehicle slightly. In the figure, the fixing portion 13 has a wide shape, but may have a wire shape.
By taking such a form, mass production is possible at a low cost.

  It is understood that the tire chain fitting according to the present invention has a great industrial applicability for tire chains in general.

DESCRIPTION OF SYMBOLS 1 Tire chain attachment tool 2 Frame 3 Arm part 4 Fixing part 5 Arm part holding part 6 Movable arm part 7 Tire size adjustment part 8 Tire clamping force adjustment part 9 Handle 10 Spring 11 Tire chain suspension part 12 Length adjustment part 13 Fixation Part 14 Tire chain suspension part 15 Arm part 16 Tire chain 17 Tire 18 Wheel 19 Car body 701 Bolt 1201 Adjustment screw part 1202 Guide pin 1203 Adjustment bolt 1204 Screw hole 1205 Guide pin insertion hole 1601 Tire chain connecting part 1602 Tire chain Side part

A tire chain attachment tool according to the present invention is provided for suspending an arm portion for sandwiching a tire from a width direction of the tire, a fixing portion for fixing the arm portion and an arm portion holding portion, and an end portion of the tire chain. A tire chain suspension part and a movable arm part provided with a clamping force adjusting part for tightly attaching the arm part to the tire , one arm part is installed at one end of the fixed part, and the other arm part is The arm portion holding portion is fixed to the other end of the fixing portion through the clamping force adjusting portion, and the tire chain suspension portion is connected to the tire contact side of the arm portion. Arranged on opposite sides, the clamping force adjusting unit has a tire size adjusting unit that adjusts a distance for pressing and fixing the movable arm unit against the side surface of the tire according to the width of the tire, Adjust the tire size adjustment section to sandwich the tire In state, tire chains fixture, wherein the tire chain suspension portion, it is possible to adjust the position of the substantially equal distances outwardly from the width direction center of the tire.

Further, the present invention is characterized in that the tire chain suspension portion is located at a substantially equidistant position from the center in the width direction of the tire in a state where the tire is sandwiched between the first arm portions.

Claims (6)

An arm for sandwiching the tire from the width direction of the tire;
A fixing part for fixing the arm part;
Have a tire chain suspension to suspend the end of the tire chain,
The arms are installed at both ends of the fixed part,
The tire chain suspending portion is disposed on a side of the arm portion facing the tire contact side of the arm portion. An arm for sandwiching the tire from the width direction of the tire;
A fixing portion for fixing the arm portion and the arm portion holding portion;
A tire chain suspension for suspending the end of the tire chain;
It has a clamping force adjustment part that closely attaches the arm part to the tire,
One of the arm portions is installed at one end of the fixed portion,
The other arm part is fixed to the arm part holding part via the clamping force adjusting part,
The arm holding part is installed at the other end of the fixed part,
The tire chain suspending portion is disposed on a side of the arm portion facing the tire contact side of the arm portion. The tire chain mounting tool according to claim 2, wherein the clamping force adjusting portion has a tire size adjusting portion that adjusts a distance between the arm portion and a side surface of the tire according to a width of the tire. . 4. The tire chain attachment device according to claim 1, wherein the tire chain holding portion is located at an approximately equidistant position from the center in the width direction of the tire in a state where the tire is sandwiched by the first arm portion. Having a fixing part length adjusting part for adjusting the length of the fixing part in the longitudinal direction;
5. The tire chain according to claim 1, wherein the fixing portion length adjusting portion has a screw hole extending in a longitudinal direction, a screw portion corresponding to the screw hole, a hole extending in the longitudinal direction, and a pin corresponding thereto. Mounting tool. At least a holding length adjusting part for adjusting the length in the longitudinal direction of either the arm part or the holding part,
5. The tire chain according to claim 1, wherein the clamping length adjusting portion has a screw hole extending in a longitudinal direction, a corresponding screw portion, a hole extending in the longitudinal direction, and a pin corresponding thereto. Mounting tool.