JP2010022782A - Roller skate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller skate which has a straight-going stability and an excellent operability by combining a skate shoe to a highly functional skate mechanism section with a slant angle suitable for foot functions. <P>SOLUTION: The roller skate slanted outward of foot has a wide adaptability for course changes, a straight-going stability, and a good operability by foot. The rotational movement inward of foot of the toe of the skate shoe, which is a disadvantage of this type of shoe, is inhibited securely with a camber thrust operating for the front and back wheels by making a wheel top section narrower than the grounding positions of the front and back wheels when it is viewed from the heel. Therefore, this roller skate is stable. A roller skate with a racing performance is developed by combining a skate shoe having an angle suitable for a foot with a skate mechanism with a rolling axis angle activating the camber thrust. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pair of roller skates including two wheels with one foot having a front wheel with one tire on the inner side of the foot and a rear wheel with one tire on the outer side of the foot, a frame for rotatably holding the wheel, and a shoe body.

In conventional roller skates with two wheels on one foot, the front wheel on the inside of the foot, and the rear wheel on the outside of the foot, claims 2 and 3 of Patent Document 1 are considered to have been claimed due to a technical error. It will not be a roller skate for running. Also, the cause of this error is probably because there are no two-wheeled vehicles or playground equipment with front wheels and rear wheels, or there is almost no such product, so there is no reference product or technical literature. Specifically, in such a one-legged two-wheel roller skate, if the traveling direction of the front and rear wheels is parallel and the wheels are vertical, the vehicle does not go straight but bends to the inside of the foot, which is not suitable as a play equipment. Without this improvement, roller skating in this mode cannot be established. It is necessary to elucidate and organize the factors that determine the progress of this form of roller skating, to combine them well, and to propose a roller skate that can stably run.
PCT / JP2007 / 000738

  In this form of two-wheel roller skate, the front and rear wheels can move laterally by mechanical force, and the skating mechanism can be freely moved by the line connecting the ground point of the front wheel and the ground point of the rear wheel, that is, the rolling shaft. The tilt can be changed, but the tilt changes the course of the front and rear wheels. Although there are lateral movements to the various wheels related to the course change, the movements are synthesized, and as a result, the traveling directions of the front wheels and the rear wheels are obtained. Further, the movement of the front wheel and the rear wheel causes a turning motion or a lateral slicing motion in the skate mechanism, and the combined motion forms the course of the skate shoes. Analyze and analyze the lateral movement of the front and rear wheels, and analyze the change when tilted by the rolling axis to see the course of the roller skates.

  Roller skates have a simple structure that does not have a mechanical structure that causes a change in the course of the track. When one leg is slid, the inclination of the skating mechanism is adjusted by the rolling axis, and (B), (C), (D) in FIG. Is to create a roller skate that changes linearly. This makes it possible to change the course by adjusting the inclination of the skate mechanism part through the skate shoes with the foot to balance the body and avoid obstacles when sliding on one foot. In this case, the inclination of the rolling axis is a course change corresponding to the change in the degree of inclination of the top of the head from the vertical to the outside of the foot when the front wheel is viewed from the heel, and the inclination of the top of the head to the inside of the foot is excluded. This structure is suitable for mass production, and is an issue for roller skates with the focus on inexpensive and fun playing.

  Further, the inclination of the rolling axis is changed in accordance with a change in which the top of the front wheel is tilted to the inner side of the foot when the front wheel is viewed from the heel in accordance with a change of tilting further to the outer side of the foot vertically (A), (B), (C ), (D) is to create a roller skate that spreads the adaptability to change the course linearly.

  Further, in the two-wheel skates of this form, there is a movement in which the tip of the foot turns in the direction of the inside of the foot when one leg is slid, which is considerably suppressed by the roller skate of the form of FIG. 5, but it is not sufficient for sports competition. In order to achieve a more stable roller skate, it is necessary to make this roller skate with a stable sliding while suppressing this turning.

  The range in which the two-wheel roller skates allow the most stable sliding is as follows: the front wheels are vertical and the rear wheel top is tilted to the inside of the foot, the rear wheels are vertical and the front wheel top is tilted to the outside of the foot. It is an inclination range of the rolling axis in a state where Also, from the ergonomic point of view, when sliding one leg, it is inevitable for a stable sliding to bring the center of gravity of the body in the lateral direction toward the moving direction on the feet that are sliding, so that it is sliding It is important to join the skating shoes at an ergonomically easy-to-slip angle to the skate mechanism that can stably run on the rolling axis, so that the upper leg leg is inclined to the outside of the foot. It becomes.

Assume one-leg running on the right foot roller skates in Figure 1. The front and rear wheels are always subjected to road resistance and decelerate. The kinetic energy of the body tries to move in the direction of the action point 30 to 31 of the skate. The main point here is that the action point 30 of the skates is in front of the line connecting the action point 32 of the front wheel on the contact point of the front wheel and the action point 36 of the rear wheel on the contact point of the rear wheel. The kinetic energy that the body has is replenished with the kinetic energy that the body loses the energy that the front wheel lost due to running resistance, with the force of 33 from the action point 30 of the skates to the action point 32 of the front wheel. The 33 forces acting on the front wheel action point act as 34 forces in the direction of travel and 35 forces in the direction of the foot. The action point 36 of the rear wheel acts as the force of action points 30 to 37 of the skate. These 37 forces are divided into 38 forces in the direction of travel and 39 forces inside the foot. The forces of 35 and 39 act as lateral forces on the wheels, and gradually thrust in the direction where the force is applied, that is, the inside of the foot, due to the deformation of the ground contact part of the tires that are installed. The magnitude of the force of 35 is large, and the difference produces a difference in the amount of thrust, and as a result, the tip of the skate will move inwardly, and the actual skate in the direction of travel 31 Progress is 41. If this is shown in the locus diagram of Figure 2, it will be (A). This will not be a comfortable roller skate because the path is too inside the foot.
Further, in Claim 2 and Claim 3 of Patent Document 1, the front wheel tip is angled toward the inner side of the foot, but in this mode, the progress toward the inner side of the foot and the inward side of the foot in FIG. 2 (A). This is a playground equipment that is not suitable for roller skating. This was confirmed by running on actual roller skates and experimenting with models.

  In addition, in FIG. 4C in which the skate mechanism portion of FIG. 4A, which is a schematic diagram of FIG. 1, is tilted by −20 degrees with respect to the rolling axis, the axles of the front and rear wheels rise to the left as compared with FIG. I can read that. Since this axle displacement occurs on both the front and rear wheels, the progress of the skate mechanism proceeds to slice rightward. Also, from the diagram in Fig. 4 (D), it can be seen that the inclination of this wheel derives the camber thrust in Fig. 3. In other words, the front and rear wheels shown in Fig. 4 (D) will thrust rightward with camber thrust. Therefore, it can be seen that the skating mechanism shown in Fig. 4 (C) moves to the right while slicing in the right direction, that is, the outward direction of the foot.

  In addition, what should be considered in Fig. 4 (A) is Fig. 11 (B), which shows the axles of the front and rear wheels when Fig. 4 (A) is tilted 20 degrees with the rolling axis. It can be seen that the front wheel axle 46 and the rear wheel axle 47 are lowered with respect to a line 55 perpendicular to the direction of travel of the skate mechanism, and the direction of travel of the wheels is directed to the right. For this reason, the roller skate in Fig. 11 (B) simultaneously slices toward the outside of the foot and turns toward the inside of the foot at the tip of the roller skate shown in (0008), and the camber thrust adds thrust toward the inside of the foot. Therefore, it becomes unstable due to the interaction of contradictory movements, and it becomes difficult to control the direction of travel with the foot.

In Fig. 5, the tip of the front wheel is 7 degrees outward on the Z axis. This angle has been made visually easy to understand. Actually, the angle is adjusted so that it proceeds as shown in Fig. 2 (B). As a result, if you try to advance this roller skate in the direction of 31. With the same force as 35 in Fig. 1, the ground contact part of the tire is deformed, and 20 thrust moves inside the foot. In addition, movement to the outside of 22 feet comes out by the angle attached to the front wheel. The actual front wheel movement will be 20 and 22 subtracted. In addition, the rear wheel moves 21 with the same force as 39 in Fig. 1. As a result, the progress toward the inside of the foot can be suppressed, and the movement of the roller skate tip turning inside the foot can be suppressed as shown in [0008]. Further, in FIG. 6A, in which the roller skate of FIG. 5 is tilted by −10 degrees, which is the inclination of lowering the little toe side with the rolling axis, the front axle 46 is further increased to the left, and the rear axle 47 is increased to the left. You can see that This means that both the front and rear wheels have their wheel tips facing outward. Fig. 6 (B) shows that both the front and rear wheels tilt toward the outside of the foot, forming a camber angle and thrusting. Therefore, the roller skate in Fig. 6 (A) progresses slowly to the right and simultaneously to the right. Fig. 6 (C) is a figure tilted by -20 degrees with the rolling axis, and the front and rear axles are more to the left, and (D) in the front view shows that the camber angle has become stronger. . It can be seen that the roller skates in Fig. 5 change linearly from Fig. 2 (B) to Fig. 2 (C) and (D) as the rolling shaft increases from 0 to a negative angle. Therefore, the method of angling the front wheel front end with the Z-axis to the outside of the foot solves the problem of (0008) that suppresses unnecessary turning and the problem that the course changes linearly with the rolling axis of (0004). The
However, roller skates in this mode increase the negative angle on the rolling axis and at the same time, the progression to the outside of the foot becomes stronger, and the range of rolling angles that can be obtained almost straight during that time is narrow, so in competitions and full-scale skating Stable running on one foot as used becomes difficult.

  Fig. 7 (A), in which the roller skate of Fig. 5 is tilted plus 20 degrees with the rolling axis, the front and rear axles are raised to the left shoulder, so that the progression of the outside of the foot and the slice can be read. It doesn't suit the course change, and it can be seen from the front view of (B) that the camber angle shows progress toward the inside of the foot, and contradictory movements are added. Therefore, in the state of Fig. 5, the positive angle of Rolling suke is not fixed and cannot be used for actual skating.

  Fig. 8 shows the skate mechanism of Fig. 9 with the rolling shaft turned 8 degrees so that the front wheel is vertical. In Fig. 8, the lateral movement of the front wheel is determined by the movement of the inner side of 20 and the movement of 22 moving outward of the foot at an angle of 50 attached to the front wheel. The direction of the rear wheel is determined by the composition of 21 movements to the inside of the foot and 23 movements to the inside of the foot by the camber thrust. The direction of travel of the roller skate shown in Fig. 8 is adjusted by 50 angles so that it is the same as that shown in Fig. 2 (B).

  Fig. 9 shows the right skating mechanism with the front wheel tip tilted 3 degrees to the outside of the foot on the Z axis with respect to the traveling direction of the rear wheel and the head top of the head tilted 7 degrees to the outside of the foot on the Y axis with respect to the vertical rear wheel. (A) is a plan view, and 20 is added to the front wheels as movement toward the inside of the foot, 22 as movement toward the outside of the foot, and 23 due to movement of the camber thrust. The rear wheel has 21 movements inside the foot. In this case, the roller skate travels in a straight line as shown in Fig. 2 (C).

  What is important here is that the roller skates in Fig. 1 always have one leg sliding and the tip of the foot always turns inward, while the roller skating in Fig. 5 corrects the turning movement considerably, but the tendency remains. . On the other hand, in Fig. 8 (A), the camber thrust movement 23 acts on the inside of the foot on the rear wheel. In Fig. 9 (A), there are 23 camber thrusts on the front wheels. The movement of these camber thrusts effectively suppresses the turning of the tip to the inside of the foot, and since it does not become a big movement, it becomes a stable sliding. 8A to 9A, the camber thrust works even if the size of the front and rear wheels changes in the middle of the rolling axis, and the tip turns to the inside of the foot. Control. As a result, the range of tilting of the rolling axis between Fig. 8 and Fig. 9 is an important range for two-wheeled roller skate with stable turning without turning.

  FIG. 10 (A) is a schematic diagram of the skate mechanism part tilted by −10 degrees with respect to the rolling axis of FIG. 9. The lateral movement of the front wheel is the outward movement of the foot due to the displacement of 25 axles, and the rear wheel is also The movement of this skate mechanism is in the direction of Fig. 2 (D) because 25 extra-foot movements are added. The skate mechanism with the tilt of the wheel in this state has a change in progress as shown in (0013), (0014), (0016) when the tilt of the rolling shaft is 0 degrees when the front wheel is vertical. It can be seen that the changes in (B), (C), and (D) in Fig. 2 are linear. Furthermore, in this configuration, if it is tilted positively on the rolling axis, it will be as shown in Fig. 12 (B). The front wheel axle 46 and the rear wheel axle 47 are both lowered with respect to the line 55 perpendicular to the moving direction of the roller skates, indicating that the direction of the wheel is pointing to the right, but 52 parallel to the front wheel axle. The rear wheel axle line is lower than the line of skate, and the direction of the skate shoes advances while slicing toward the inside of the foot while slicing the tip direction of the skate while slicing the outside of the foot, so the result is the progress toward the inside of the foot . In addition, the movement of the front and rear wheels to the inside of the foot with camber thrust is also added. As a result, the whole course is as shown in FIG. 2 (A). In this form of roller skating, the positive change in the rolling axis causes the rear wheel to be perpendicular to 0 degree and a negative change in angle. (B), (C), (D) course change is obtained, it can be seen that the change is linear. As a result, the range of course change is expanded to a plus angle with the rolling axis by adjusting the inclination of the foot, and as a result, roller skates with wider course change means can be made. Moreover, the advance toward the inside of the foot due to the positive angle at the rolling axis of this form of roller skate also works as a positive force for kicking diagonally backward, which is the thrust of roller skate, which is made stronger by this positive angle.

  FIG. 6A, in which FIG. 5 is tilted by minus 10 degrees with respect to the rolling axis, shows that the axle of the front wheel rises further to the left and advances toward the outside of the foot, and the thrust toward the outside of the foot at a camber angle from FIG. I understand. Therefore, in the roller skate in Fig. 5, it can be seen that the rolling shaft has a narrow angle range where the degree of advancement to the outside of the foot is increased at the same time as the negative angle of the rolling shaft, and approximately straight travel is obtained. However, in the roller skate in the form of FIG. 8, there are 23 camber thrusts on the rear wheel. Therefore, the angle 50 for turning the front wheel tip toward the outside of the foot on the Z-axis of the front wheel is the angle 50 shown in FIG. ) The angle is adjusted to match the progress of). Also, the camber thrust is small in movement, and moves almost straight due to changes in the rolling axis shown in Figs. Therefore, the range of the tilt of the rolling shaft, which is almost straight when the roller skate of FIG. 8 advances, is larger in the form of roller skate in FIG. 8 than in FIG. This difference adjusts the angle of the foot with the legs and adjusts the inclination of the skate mechanism, greatly improving the operability of this roller skate that makes the course change function.

FIG. 13 is a view of the two-wheel right roller skate as viewed from the heel side. When the front wheel 2 has an inclination of F degrees with respect to the vertical rear wheel 3, the inclination of the skates of 1/2 F degree is (0015) ) The slope can be used for stable sliding by making the most of the camber thrust function pointed out above. However, it is a case where the human foot is not considered, and when standing with one foot in balance, the right foot brings the body's center of gravity above the right foot, so the leg will tilt to the right, so 1 The fact that the skates are installed in the skating mechanism at an angle of more than 2F will make the most of the function of this roller skate. However, the size of the angle is different in the optimal angle because there are individuality such as O and X legs.

Considering the history of roller skating, “mounting large wheels” has been a challenge since 100 years ago. If you put it on the front and back of shoes, you can make a low floor, but it becomes too big and loses its operability as a skate. Also, if you put it under skate shoes, the sole will rise from the road surface and lose stability. As a solution to this problem, a method of sandwiching skates between the front and rear wheels was devised. This method adjusts the inclination of the skating mechanism on the rolling shaft, and moves the calf, which is a muscle that moves the length of the foot, to the front. The tibial muscle. This muscle is strong, hard to get tired, and can be adjusted finely, so it fits the foot function. However, what remained as a wall was the stability of driving. With a simple method, the straightness can be obtained by turning the front wheel tip to the outside of the foot, and the movement of the tip of the skate shoe turning to the inside of the foot is suppressed, so it has sufficient functions for children's play. The
However, this is not enough for sports and competitions that require higher stability and operability. The use of camber thrust was the solution to this problem. The camber thrust is a very small movement but it is certain. This movement suppresses turning, and completes a roller skate with excellent operability and stability. I think that the history of the new wheel skates, which can mount large wheels regardless of the height of the shoe soles, increase tolerance for bad roads, can run stably and is not imitating ice skating, will start here .

Other embodiment 1

  FIG. 14A is a diagram in which the rear wheel traveling direction is the same as the skating shoe direction. (B) is the figure where the direction of the front wheel and skates is the same. Since this difference cannot be judged by actual skating, this patent application was based on the rear wheels.

Other embodiment 2

  Figure 15 is a diagram that can be connected to 59 skating mechanism parts by changing the angle of the skate shoes variably. In this case, if you devise a detachable design, you can use the skate shoes as shoes, carry the skate mechanism, and put it on where you can skate.

  Roller skates, inline skates, and skateboards are kings of play equipment that have made a global boom, but are currently sluggish. Inline skates with a row of wheels that became a boom 20 years ago are hard to slide on, and fall sideways, so they are not familiar to the general public. The type is also sold, but the number of people who can get on the floor is increasing. Many children still have inline skates, but they don't play. The new roller skates are more tolerant of bad roads as large wheels can be installed, and running while freely changing the course is a soft and fun skating. You will be able to see kids sliding in the park and enjoying the riverbed as if cycling. Also, because you can play with that person's skill, it may be a group play for children, a young couple wearing colorful fashion, and an outdoor sport that also serves as a family. Ice skating has its limits, but there is no limit on the pavement surface. There is also an expectation for a sport that anyone can enjoy and enjoy. High oil prices can also be used for commuting. As an aside, the development of this wheel skates has been accomplished through many setbacks, and this roller skate, like a bicycle that is a male of outdoor sports, will grow into a short outdoor sport and build a new era. I miss my dreams.

Right skate shoes top view Track of right skate shoes (A) Left travel (B) Slight left travel (C) Substantially straight travel (D) Right travel, change of trajectory depending on conditions Explanation and explanatory diagram of camber thrust (A) Plan view when the wheel is vertical (B) Front view (C) Plan view when tilted by -20 degrees on the rolling shaft D) Front view A schematic plan view of a right skating shoe where the front and rear wheels are vertical, the front wheel is Z-axis and the front end of the wheel faces 7 degrees outward from the direction of travel of the rear wheel. Change of skating mechanism when tilting skates of Fig. 5 with rolling axis (A) Plan view when tilted by 10 degrees (B) Front view of A (C) Plan view when tilted by -20 degrees (D ) Front view of C Schematic of the roller skate shown in Fig. 5 tilted 20 degrees on the rolling axis (A) Plan view (B) Front view Schematic view of the skate mechanism shown in FIG. 9 tilted by 8 degrees with the rolling shaft so that the front wheels are vertical (A) Plan view (B) Front view Schematic diagram of the right skate mechanism with the front wheel tip tilted 3 degrees outward in the Z axis with respect to the direction of travel of the rear wheel and the top of the front wheel tilted 7 degrees outward in the Y axis with respect to the vertical rear wheel. A) Plan view (B) Front view Schematic of tilting the skate mechanism part of Fig. 9 by -10 degrees with the rolling axis (A) Plan view (B) Front view Fig. 4 shows only the front and rear wheels of the roller skate, the axle and the rolling axis. (A) No tilting on the rolling axis. (B) Fig. 20 tilted on the rolling axis. (C) Tilt -20 degrees on the rolling axis. Figure Schematic diagram of the front and rear wheels of the right roller skates, their axles, and rolling shafts, with the front wheel tip tilted 1 degree outward from the Z axis and the top of the head tilted 10 degrees outward from the Y axis. (A) Front wheels (B) Figure tilted 20 degrees with the rolling axis (C) Figure tilted -20 degrees with the rolling axis Schematic diagram of the skate mechanism and skate shoes with front and rear wheels in a view of the right skate from the heel side Variations in how to attach skate shoes to skate mechanisms with different front wheel and rear wheel directions (A) A schematic plan view when the shoe direction is the same as the rear wheel direction (B) The shoe direction is the same as the front wheel direction Plan view of the time Schematic diagram of a roller skate with a structure that allows the angle of the skate shoes to be changed variably with the frame of the skate mechanism.

Explanation of symbols

1. Skate shoes. 2, front wheels. 3, rear wheel.
20, The amount that the front wheel slices sideways by the force (35) applied to the front wheel.
21. The amount by which the rear wheel is sliced horizontally by the force (39) applied to the rear wheel.
22. Amount to advance to the outside of the foot according to the angle of the front wheel attached to the outside of the foot.
23, the amount of lateral movement of the wheels by the camber thrust.
25, the amount to advance in the lateral direction of the wheel due to the displacement of the axle caused by the change in inclination on the rolling shaft.
30. The point of action of skates. 31. Direction of travel of skates.
32, front wheel action point (front wheel contact point).
33, the force applied from the point of action of the skate shoes to the point of action of the front wheel. 34, the force in the direction of travel on the front wheels.
35, the force on the inside of the foot on the front wheel. 36, rear wheel action point (rear wheel grounding point).
37, the force applied from the point of action of the skate shoes to the point of action of the rear wheel.
38, the force in the direction of travel on the rear wheel. 39, the force on the inside of the foot on the rear wheel.
40, a line connecting the front wheel grounding point and the rear wheel grounding point, which is the rolling axis when the skate is tilted back and forth.
41, the direction in which skate shoes actually travel.
42. A line connecting the action point of the skate shoes and the action point of the front wheel.
43, a line connecting the action point of the skate shoes and the action point of the rear wheel. 44, line of direction of travel of skates.
45, the direction in which the wheels are thrust by camber thrust. 46, front wheel axle direction.
47, rear wheel axle direction. 48, frame part schematic. 49, a line parallel to the direction of travel of the front wheels.
50, front wheel direction. 51, the direction in which the rear wheels travel, or parallel lines thereof.
52, a line parallel to the front axle line.
53, a line for viewing the inclination of the front wheel (one point when vertical).
54, a line for viewing the inclination of the rear wheel (one point when vertical).
55. A line perpendicular to the direction of travel of the skate.
56, the vertical rear wheel line and its parallel lines.
57, an angled front wheel tilt line. 58, line of inclination of skates.
59, frame of skate mechanism. 60, screw.
61, the line of inclination of the original skate shoes.
62, line of inclination of skates after screwing.

  (Explanation of the angle) The expression of the inclination of the skating mechanism on the rolling axis is a negative angle when the skate is tilted to the right as seen from the heel side. When it is tilted in the opposite left direction, it is expressed as a positive angle.

  (Explanation of words) The skate mechanism is a word that summarizes the front and rear wheels and the frame structure that holds them in a rollable state. When it is simply expressed as skating, it is expressed as roller skating.

  (Explanation of words) It is written as the amount to be sliced and the amount to advance, but it varies depending on the shape and material of the tire and the shape and material of the road surface in contact with it.

Claims (3)

In a pair of roller skates with a frame that rotatably holds a front wheel with one tire on the inside of the foot and a rear wheel with one tire on the outside of the foot, the axle direction for holding the wheel is the X axis, and the traveling direction of the wheel Is the Y axis, and the direction perpendicular to the X axis and the Y axis is the Z axis,
The front wheel is a roller skate whose front end portion is inclined to the outside of the foot by 5 degrees or less with respect to the traveling direction of the rear wheel with the Z axis as a fulcrum.   2. The roller skate according to claim 1, wherein the top of the front wheel is tilted to the outside of the foot with respect to the Y-axis, and the inclination of the vertical rear wheel is 0 degrees when the angle of the vertical rear wheel is 0 degrees.   When the angle of the rear wheel, which is vertical when viewed from the side, is 0 degree. In the skate mechanism in which the top of the front wheel is tilted to the outside of the foot by F degrees with respect to the Y axis, the inclination of the skate shoe joined to or integrated with the skate mechanism is 1 / Roller skates with an inclination of 2F or more. Alternatively, in roller skates that have a structure in which the skate mechanism and skate shoes can be variably coupled, the roller skates in which the skate shoes can be coupled at an inclination of 1/2 F or more.

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