JPH0549726A - Roller skate - Google Patents

Abstract

PURPOSE:To smooth turning by providing support bolts spaced opposedly from each other and inclined downward on the center line of the sole of a shoe, connecting axle support brackets pivotably to the bolts to be rotated by a predetermined angle according to the weight load and attaching wheels to the axles. CONSTITUTION:Support bolts 26, 26 spaced opposedly from each other back and forth and inclined downward are secured fixedly to the lower side of a frame 20 of a skate base body approximately on the center line of the sole of a shoe 21. Front and rear upper brackets 29, 30 are provided projectingly below the frame 20 such that the support bolts 26, 26 extend through the lower portions of the brackets. Front and rear lower brackets 37, 44 are attached respectively to the front and rear upper brackets 29, 30, and wheels 48, 49 are attached to axles 42, 49 respectively attached to the brackets 37, 44. Thus, the respective brackets 29, 30, 37 and 44 are pivoted by predetermined angles according to the weight load.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller skate which has four wheels attached to the sole of a shoe and slides on a road surface.

[0002]

2. Description of the Related Art As a conventional roller skates of this type, there has been a structure as shown in FIGS.
In the drawing, a front support bolt 3 and a rear support bolt 4 are fixed to a frame 2 fixed to the bottom of a shoe 1 in a substantially vertical state with a space in front of and behind the center of the frame 2. Further, recesses 5 are formed at the front position of the front support bolt 3 and the rear position of the rear support bolt 4, respectively.

Then, a bracket 9 having insertion holes for the support bolts 3 and 4 is provided at the center of the axles 8 of the front wheels 6 and the rear wheels 7 mounted on the front support bolts 3 and the rear support bolts 4, respectively. 10 is provided to project in the horizontal direction, and arms 11 and 12 having tapered ends are provided upright. The bracket 9 of the front wheel 6 is provided in the rearward direction, and the rear wheel 7 bracket 10 is provided in the frontward direction.

Therefore, the front wheel 6 and the rear wheel 7 are inserted into the front support bolt 3 and the rear support bolt 4 above and below the brackets 9 and 10 via the cushion rubber 13, and fixed by tightening the nut 14. The upper ends of the arms 11 and 12 of the front wheels 6 and the rear wheels 7 are inserted into the recesses 5 via rubbers 15. Reference numeral 16 is a stopper attached to a bolt fixed to the tip of the frame 2.

Therefore, when the roller skate is rotated in a predetermined direction, as shown in FIG. 13, when the shoe 1 is tilted in the direction of arrow A, the front and rear support bolts 3, 4 or the front and rear wheels 6, 7 are bracketed. Since 9 and 10 are moved in the direction opposite to the arrow, the front wheel 6 and the rear wheel 7 turn by turning in opposite directions as shown by the chain line with the upper ends of the arms 11 and 12 as fulcrums. be able to.

[0006]

In the above conventional roller skates, the front wheels 6 and the rear wheels 7 are armed by moving the weights of the brackets 9 and 10 by the front and rear support bolts 3 and 4 to move the weights. The upper ends of 11 and 12 are supposed to rotate as fulcrums. However, since the distance between the support bolts 3 and 4 and the brackets 9 and 10 is small, excessive stress concentration occurs on the front and rear support bolts 3 and 4 when a weight is applied. The frame 2 may be broken or may be deformed or broken from the center in some cases. In addition, since the weight load exerts an excessive force on the upper ends of the arms 11 and 12, the rubber 15 may be damaged, resulting in poor durability.

The present invention has been made to solve the above-mentioned drawbacks, and a common object from the first invention to the fourth invention is that they are spaced apart from each other on the center line of the sole of the shoe and are opposed to each other. By providing support bolts that descend and incline, and mounting the axles of large-diameter wheels on each of these support bolts, the angle of the axle rotates due to weight load, the turning performance is smooth and the durability is good. The purpose is to embody roller skates with such a basic structure.

An object of the second invention is to make the roller skates having a new basic structure, in addition to the above-mentioned common objects, make shoes detachable and freely combine shoes with skates. ..

A third object of the present invention is to provide a roller skate having a new basic structure in which shoes can be freely attached to and detached from a skate base. In addition to clarifying the specific configuration for making it possible, the turning performance can be easily changed and adjusted.

A fourth object of the present invention is to provide a roller skate having a new basic structure in which a shoe and a skate base are integrally formed. In addition to clarifying the specific structure for smoothness, the turning performance can be easily changed and adjusted.

[0011]

In order to achieve the above object, the present invention comprises the following means. The first invention to obtain a patent is to fix the support bolts which are spaced apart on the center line of the bottom of the shoe and are inclined downward in the opposite direction to each other. The roller skates are characterized in that they are pivotally attached to a predetermined angle and wheels are attached to the axle. When the support bolts, which are fixed on the center line of the bottom of the shoe and are fixed to face each other in a direction opposite to each other, are vertically inclined, they are linear along the center line of the bottom, and The mounted wheels will travel straight. However, if you move your weight in the direction you want to bend and tilt your shoe in that direction,
The support bolts, which are fixed in the opposite direction and are inclined downward, are also inclined, forming a V-shape outside the center line of the bottom,
The wheels mounted on the respective support bolts can rotate and run by rotating a predetermined angle along the rotation direction. If the inclination angle of the shoe is made deep, the rotation angle of the wheel in the rotation direction also becomes large, and the wheel can be rotated and run with a small radius.

A second invention for which a patent is sought is such that the bottom of a frame having a mounting portion for removably fixing the shoe is on the center line of the bottom of the shoe when the shoe is mounted. Support bolts that are spaced apart in the front-rear direction and are inclined downward in the opposite direction are fixedly mounted, and brackets having axles are attached to the respective support bolts so that they can be rotated by a weight load to a predetermined angle. It is a roller skate characterized by having wheels attached. The second invention is
The roller skates according to the first aspect of the present invention include a skating base body obtained by removing the shoes from the roller skates, and the shoes to which the shoes can be detachably fixed by a mounting portion.

A third invention to be patented is a skating base body in which a lower leg of the skating base body is equipped with front leg portions having wheels on both left and right sides and rear leg portions having wheels on both left and right sides. Is tilted downward in the opposite direction, spaced apart in the front-rear direction, so that when the shoe is mounted, it is on the lower side of the frame having a mounting portion for removably fixing the shoe, and the front and rear are spaced apart from each other. While fixing the support bolts, the front upper bracket and the rear upper bracket projecting downward from the frame penetrate the front and rear support bolts at their lower parts, and the front upper bracket and the rear upper bracket are respectively placed at appropriate positions. An elastic material stabilizer is fixed, and the front leg portion has a front lower portion having a stabilizer contact portion and a support bolt insertion hole. Fixed axles having wheels mounted portion on the left and right end portions in the racket becomes attached so that rotatably a wheel in a wheel mounting portion of the axle, said rear legs,
An axle having wheel mounting portions at both left and right ends is fixed to a rear lower bracket having a stabilizer contact portion and a support bolt insertion hole, and wheels are rotatably attached to the wheel mounting portion of the axle. The front support bolt of the skate base is inserted into the support bolt insertion hole, the front lower bracket is brought into contact with the front upper bracket, and the stabilizer abutment portion is brought into contact with the stabilizer of the skate base. Both the lower bracket and the front upper bracket are fastened and connected via a cushioning material, and the axle is mounted so that it can be rotated by a weight load to a predetermined angle. Insert the rear support bolts of the base unit and attach the rear lower bracket to the rear upper bracket. The rear lower bracket and the rear upper bracket are fastened together by a cushioning material to be connected to each other by a weight load, and the axle is fixed to a predetermined weight. Roller skates characterized by being mounted so that they can be rotated up to an angle.

The third aspect of the present invention is a roller skates having a front leg portion having wheels on both left and right sides and a rear leg portion having wheels on both left and right sides attached to a lower portion of a skating base body. It is an invention of an embodiment in which the legs are specifically fixed so that the angle of the axle is rotated by the weight load and the turning performance is smooth. By changing the inclination angle θ of the support bolt that pivotally mounts the bracket equipped with the axle and adjusting the tightening force through the cushion material, the turning performance can be easily changed and adjusted. It is a specific embodiment.

A fourth invention to be patented is to integrally form a skate base on the bottom of a shoe, and at the lower part thereof, a front leg having wheels on both left and right sides and a rear leg having wheels on both left and right sides. In the roller skates to be mounted, the skating base body is downwardly inclined in a direction opposite to each other so as to be on the lower side of the frame fixed to the bottom of the shoe so as to be substantially on the center line of the shoe bottom. While fixing the support bolt to
The front upper bracket and the rear upper bracket projecting downward from the frame have the front and rear support bolts penetrating at the lower part thereof, and further elastic material stabilizers are fixed to appropriate places of the front upper bracket and the rear upper bracket. The front leg is fixed to the front lower bracket having the stabilizer abutment and the support bolt insertion hole, and the axle having the wheel mounting portions at the left and right ends is fixed, and the wheel can be freely rotated on the wheel mounting portion of the axle. The rear leg is fixed to the rear lower bracket having the stabilizer contact portion and the support bolt insertion hole, and the axle having the wheel mounting portions at the left and right ends is fixed to the rear lower bracket. Wheels are rotatably attached, and the front leg is supported in the support bolt insertion hole by the front support of the skate base. Insert the bolts so that the front lower bracket abuts on the front upper bracket and the stabilizer abutment portion abuts on the skate base stabilizer, and both the front lower bracket and the front upper bracket are interposed with a cushioning material. Tighten and connect, and mount the axle so that it can rotate to a predetermined angle depending on the weight load.For the rear leg, insert the rear support bolt of the skate base into the support bolt insertion hole, and set the rear lower bracket. And a stabilizer contact portion of the rear upper bracket and the stabilizer contact portion is combined so as to abut the stabilizer of the skate base, both the rear lower bracket and the rear upper bracket are tightened and connected via a cushion material,
The roller skates are characterized in that an axle is mounted so as to be able to rotate to a predetermined angle depending on a weight load.

According to a fourth aspect of the present invention, the roller is formed by integrally forming a skate base on the bottom of the shoe, and attaching a front leg portion having wheels on both left and right sides and a rear leg portion having wheels on both left and right sides to the lower portion thereof. It is an invention of an embodiment in which the skating base body, the front leg portion, and the rear leg portion are concretely fixed so that the angle of the axle is rotated by the weight load and the turning performance is smooth.

[0017]

Embodiments of the present invention will be described with reference to the drawings. 1 is a side view of a roller skate according to an embodiment of the first invention and a fourth invention, FIG. 2 is a bottom view of the same, FIG. 3 is a front view of the same, and FIG. FIG. 5 is a side view of the roller skates according to the embodiments of the second invention and the third invention, FIG. 6 is a side view in which a part of the roller skates is removed, and FIG. 7 is a component of the roller skates. FIG. 8 is a perspective view of a roller skate wheel used in the present application as seen from the outside, FIG. 9 is a perspective view of the wheel as seen from the inside, and FIG. 10 is a front view showing the action of the roller skate. 11 is the same plan view.

The first embodiment of the present invention is a skate base 1
7 is a roller skates in which a front leg portion 18 having wheels on both left and right sides and a rear leg portion 19 having wheels on both left and right sides are attached to a lower portion of 7, and a second embodiment of the present invention is provided on a bottom portion of a shoe 21. This is a roller skate in which a skate base 17 is integrally formed, and a lower leg portion 18 having wheels on both left and right sides and a rear leg portion 19 having wheels on both left and right sides are attached to a lower portion thereof.

The skating base 17 is separated from the frame 20 fixed to the bottom of the shoe 21 and the front and rear sides of the frame 20 so that the bottom of the frame 20 is substantially on the center line of the bottom of the shoe 21 when the shoe 21 is attached. Then, the support bolts 26, which are inclined downward in the opposite direction, are fixed.

Further, below the frame 20, a front upper bracket 29 and a rear upper bracket 30 are provided so as to project, and the front and rear support bolts 26, 26 are provided under the front upper bracket 29 and the rear upper bracket 30.
Are fixed so that they penetrate each other.

The front upper bracket 29 has
A front lower bracket 37 is attached so that the front support bolt 26 penetrates and abuts and overlaps with the front upper bracket 29. Further, an axle 42 and a wheel 48 are attached to the front lower bracket 37 to attach the front leg portion 1 to the front leg portion 1.
Eight.

The rear upper bracket 30 is fitted with a rear lower bracket 44 so as to penetrate the rear support bolt 26 and abut and overlap with the rear upper bracket 30, and further the rear lower bracket 4 is attached.
Axle 47 and wheel 49 are attached to 4 to form rear leg portion 19.

The respective constituent members will be described in more detail below. In the figure, 20 is a frame fixed to the bottom of the shoe 21, and the frame 20 is formed of a rectangular top surface portion 20A made of an iron plate and side wall portions 20B hanging on both sides in the longitudinal direction of the top surface portion 20A. , The top surface 20A
The shoe 2 is fixed to the shoe 2 with bolts and nuts inserted into the insertion holes 22 formed in the front and rear of the shoe.

Reference numerals 23 and 24 shown in FIG. 7 are a front king pin and a rear king pin having the same shape.
Reference numerals 3 and 24 have the same length as the inner width of the both side wall portions 20B of the frame 20, and are formed from a rod 25 having female screws 25a formed on both end surfaces thereof and an L-shaped support bolt 26 connected to the center thereof. Has been done.

The front king pin 23 and the rear king pin 24 are inserted with rods 25 at the front and rear ends between the side wall portions 20B of the frame 20, respectively, and female screws 25a at both ends thereof are provided on both sides of the frame 20. Wall 20B
The nut 28 inserted into the insertion hole 27 formed in is screwed and fixed. At this time, the front kingpin 23 is attached so that the support bolt 26 faces rearward, and the rear kingpin 24 is attached so that the support bolt 26 faces forward.

Reference numerals 29 and 30 shown in FIG. 7 denote a front upper bracket and a rear upper bracket. Mounting pieces 31 having insertion holes 31a are continuously provided in parallel in the same direction on both upper ends of both upper brackets 29 and 30, respectively. In the lower central part of the upper brackets 29, 30, a support bolt 26 for supporting the front king pin 23 and the rear king pin 24 is provided.
Insertion hole 32 is formed.

Therefore, the front upper bracket 2
9 and the rear upper bracket 30 are respectively formed in the side wall portions 20B of the frame 20 with the insertion hole 31a of the attachment piece 31 and the insertion hole 33 near the center separated from the front end portion and the rear end portion of the side wall portion 1B. It is attached by the inserted bolt 34 and nut 35.

Reference numeral 36 shown in FIG. 7 denotes a front lower bracket, which is composed of a vertical portion 37 and a horizontal portion 38 which are bent in an L shape, and an insertion hole 39 for the support bolt 26 is formed at the center of the vertical portion 37. Is formed, and the upper end thereof is bent backward 40
Are lined up. In addition, the front lower bracket 36
An insert piece 41 is formed downward at the tip of the horizontal portion 38.

Further, a front shaft 42 is fixed inside the bent portion between the vertical portion 37 and the horizontal portion 38 of the front lower bracket 36, and male screw portions 42a are provided at both ends thereof.
Is engraved.

Reference numeral 43 shown in FIG. 7 denotes a rear lower bracket, which is a vertical portion 44 bent into an L shape and a short horizontal portion 45.
And the support bolt 2 is provided at the center of the vertical portion 44.
6 insertion holes 44a are formed, and a bent piece 46 is continuously provided at the upper end thereof in the front direction. Also, the rear lower bracket 4
The rear shaft 47 is fixed to the inside of the bent portion between the vertical portion 44 and the horizontal portion 45 of FIG.
7a is engraved.

A front wheel 48 and a rear wheel 49 are attached to the male screw portions 42a and 47a at both ends of the front shaft 42 and the rear shaft 47, respectively, and fixed with bolts 50 and 50, respectively.

Bearings are installed in the shaft portions of the wheels 48 and 49 shown in FIGS. 8 and 9, and the wheels 48 and 4 are provided.
A large diameter wheel with a diameter of 130 mm is used for 9, but a small diameter wheel of ordinary roller skates (diameter 67 m
m) can also be used. Further, concentric circular recesses 51 are formed outside the wheels 48, 49.
A desired wheel cap 52 can be detachably attached to the No. 1. Reference numeral 52a is a small disc that is detachable by punching the wheel cap 52.

Therefore, the front lower bracket 36
The vertical bolt 37 is brought into contact with the rear surface of the front upper bracket 29 and the support bolts 26 of the front kingpin 23 are inserted into the both insertion holes to project backward.

The front upper bracket 2
On the back surface of 9, a rectangular stabilizer 53 made of an elastic material such as resin is fixed with bolts and nuts.
The lower surface of the bent piece 4 of the front lower bracket 36
Abut 0.

The rear lower bracket 43 has its vertical portion 44 abutted against the front surface of the rear upper bracket 30 and the supporting bolts 26 of the front king pin 24 are inserted into both insertion holes to project forward.

Then, the same stabilizer 54 as described above is fixed to the front surface of the rear upper bracket 30 with bolts and nuts, and the lower surface is brought into contact with the bent piece 46 of the rear lower bracket 43.

The axis of the support bolt 26 has a predetermined inclination angle θ with respect to the top surface 1A of the frame 1.

Further, the upper brackets 29, 30 described above
And the king pin 2 in both insertion holes of the lower brackets 36 and 43.
When inserting the support bolts 26 of Nos. 3 and 24, after the nut 55 and the cushion rubber 56 are mounted on the end of the support bolt 26 in advance, the nuts 55 and the cushion rubber 56 are inserted into the both insertion holes, and the support bolts 26 protruding from the insertion holes are inserted. Then, the nut 58 is tightened again via the cushion rubber 57. That is, the upper and lower brackets are connected to the support bolt 26 via the front and rear cushion rubbers 56 and 57.

Reference numeral 59 is a urethane stopper, and an insertion piece 41 at the front end of the front lower bracket 36 is inserted into a groove 60 on the upper surface of the stopper.
6 The end portion of the support bracket 61 and the end portion of the support bracket 61 are integrally fixed with bolts and nuts, and the port bracket 6
The rear end of the frame 1 is inserted between the top surface 1A of the frame 1 and the rod 25 fixed to the tip of the frame 1.

Therefore, when the roller skate is rotated in a predetermined direction, as shown in FIGS. 10 and 11, when the shoe 21 is tilted in the direction of arrow A, the axial center of the front and rear support bolts 26 is the top of the frame 1. Since a predetermined inclination angle θ is formed with respect to the surface portion 1A, the front and rear support bolts 26, that is, the front and rear wheels 48 and 49, are shown by the alternate long and short dash lines with respect to both insertion holes of the upper bracket and the lower bracket as fulcrums. It can turn smoothly by rotating in the opposite direction.

Further, since the stopper 59 is attached to the tip of the front lower bracket 36 and is reinforced by the plate-shaped support bracket 61 so as to have an elastic force, it absorbs a large impact force at the time of stop and is durable. improves.

That is, the front leg portion 18 has a front lower bracket 36 having a stabilizer abutment portion 40 and a support bolt insertion hole 39, and an axle 4 having wheel mounting portions at both left and right ends.
2 is fixed and a wheel 48 is rotatably attached to a wheel mounting portion of the axle 42, and the rear leg portion 19 has a rear lower bracket having a stabilizer contact portion 46 and a support bolt insertion hole. An axle 47 having wheel mounting portions at both left and right ends is fixed to the wheel 44, and wheels 49 are rotatably attached to the wheel mounting portions of the axle 47.

The front leg portion 18 has a support bolt insertion hole 39 in which a front support bolt 26 of the skate base 20 is inserted.
By inserting the front lower bracket 36 into contact with the front upper bracket 29 and the stabilizer contact portion 40 into contact with the stabilizer of the skate base 20, and cushioning both the front lower bracket and the front upper bracket. It is fastened and connected via a member, and the axle is mounted so that it can be rotated up to a predetermined angle by the weight load.

Further, in the rear leg portion 19, the rear support bolt of the skate base is inserted into the support bolt insertion hole so that the rear lower bracket abuts on the rear upper bracket and the stabilizer abutting portion makes the stabilizer abutment of the skate base a stabilizer. A roller skates in which the rear lower bracket and the rear upper bracket are both tightened and connected via a cushioning material, and the axle is mounted so that the axle can be rotated to a predetermined angle depending on the weight load. is there.

[0045]

According to the present invention, the supporting bolts, which are spaced apart from each other on the center line of the bottom of the shoe and are inclined downward in the direction opposite to each other, are fixed, and the brackets having the axles are attached to the supporting bolts depending on the weight load. Since the wheel is attached to the axle so that it can be rotated up to a predetermined angle, the support bolts which are fixed on the center line of the sole of the shoe and are fixed in the opposite direction are vertically arranged. In this case, the vehicle travels in a straight line, and when the weight is moved in the desired direction and the shoe is tilted in that direction, the wheels are allowed to turn by a predetermined angle along the turning direction and turn.

Further, since the support bolt is provided with the inclination angle θ and the wheels mounted on the support bolt are rotated at a predetermined angle along the turning direction, the turning can be performed smoothly.
Since the rotation of the wheel at this time is structurally caused by the rotation of the support bolt at the inclination angle θ, no excessive stress concentration is applied to the support bolt, frame, etc., so there is no risk of breakage or twisting and durability. Is greatly improved.

Further, the sharpness of turning can be changed by changing the inclination angle θ of the support bolt.

The second invention and the third invention are convenient roller skates having the same effects as the invention of the present application and allowing the shoes to be detachable.

[0049]

[Brief description of drawings]

FIG. 1 is a side view of a roller skate according to an embodiment of the present invention.

FIG. 2 is a bottom view of the roller skates.

FIG. 3 is a front view of roller skates.

FIG. 4 is a side view with a part of the roller skates removed.

FIG. 5 is a side view of the roller skates according to the embodiments of the second invention and the third invention.

FIG. 6 is a vertical sectional side view of the roller skates shown in FIG.

FIG. 7 is an exploded perspective view of components of the roller skates.

FIG. 8 is an exploded perspective view of the wheels of the roller skates as seen from the outside.

FIG. 9 is a perspective view of a wheel as seen from the inside.

FIG. 10 is a front view showing the action of the roller skates.

FIG. 11 is a plan view showing the action of the roller skates.

FIG. 12 is a side view showing a part of a conventional roller skate removed.

FIG. 13 is a plan view showing the operation of the conventional roller skates.

[Explanation of main signs]

 21 shoes 23 kingpin 24 kingpin 26 support bolt 42 front shaft 47 rear shaft 48 large diameter wheel 49 large diameter wheel θ inclination angle

Claims (4)

[Claims] 1. A support bolt, which is spaced apart on the center line of the bottom of a shoe and is inclined downward in the direction opposite to each other, is fixed, and a bracket having an axle is pivoted to each support bolt to a predetermined angle by weight loading. Roller skates characterized by being axle-mounted so that wheels can be attached to the axles. 2. A lower side of a frame having a mounting portion for detachably fixing the shoe, spaced apart in the front-rear direction so as to be substantially on the center line of the bottom of the shoe when the shoe is mounted, in mutually opposing directions. A support bolt that descends and inclines is fixed, and a bracket equipped with an axle is attached to each support bolt so that the bracket can be rotated to a predetermined angle by weight load.
Roller skates characterized by having wheels attached to the axle. 3. In a roller skates in which a front leg portion having wheels on both left and right sides and a rear leg portion having wheels on both left and right sides are attached to a lower portion of a skating base body, the skating base body removably attaches shoes. To the lower side of the frame that has a mounting portion for mounting the support bolts, which are spaced apart in the front-rear direction and are inclined downward in the opposite direction, are fixed so that they are substantially on the center line of the bottom of the shoe when the shoe is mounted. The front and rear upper brackets projecting downward penetrate the front and rear support bolts at their lower portions, and elastic material stabilizers are fixed at appropriate places on the front and rear upper brackets. The front legs are mounted on the left and right ends of the front lower bracket that has stabilizer contact parts and support bolt insertion holes. An axle having a portion is fixed, and a wheel is rotatably attached to a wheel mounting portion of the axle, and the rear leg portion has left and right end portions on a rear lower bracket having a stabilizer contact portion and a support bolt insertion hole. An axle having a wheel mounting portion is fixed to the portion, and the wheel is rotatably mounted on the wheel mounting portion of the axle, and the front support bolt of the skate base body is inserted into the support bolt insertion hole of the front leg portion. Then, the front lower bracket is brought into contact with the front upper bracket and the stabilizer abutting portion thereof is brought into contact with the stabilizer of the skate base so that the front lower bracket and the front upper bracket are both tightened with a cushioning material. Connect it and attach the axle so that it can be rotated to a predetermined angle by weight load. Insert the rear support bolt of the skate base to support bolt insertion hole,
The rear lower bracket is brought into contact with the rear upper bracket, and its stabilizer abutting portion is combined so as to come into contact with the stabilizer of the skate base, and both the rear lower bracket and the rear upper bracket are fastened and connected via a cushioning material, Roller skates characterized in that the axles are mounted so that they can be rotated to a predetermined angle depending on the weight load. 4. A roller skate comprising a skate base integrally formed on the bottom of a shoe, and a front leg having wheels on both left and right sides and a rear leg having wheels on both left and right sides attached to the lower part thereof. The skating base body is fixed to the lower side of the frame fixed to the bottom of the shoe, with support bolts that are spaced apart in the front-rear direction and are inclined downward in the opposite direction so as to be substantially on the center line of the shoe bottom. The front and rear upper brackets projecting downward from the front and rear supporting brackets penetrate the supporting bolts at the lower part thereof, and elastic stabilizers are fixed at appropriate places on the front and rear upper brackets. The front leg has a wheel mounting portion at both left and right ends of a front lower bracket having a stabilizer contact portion and a support bolt insertion hole. The axle is fixed, and the wheel is attached to the wheel mounting part of the axle so as to be rotatable.
The rear leg part is fixed to the rear lower bracket having the stabilizer abutment part and the support bolt insertion hole with the axles having the wheel mounting parts at both left and right ends, and the wheels can be freely rotated on the wheel mounting part of the axle. The front leg is attached to the front skate base by inserting the front support bolt of the skate base into the support bolt insertion hole of the front leg to bring the front lower bracket into contact with the front upper bracket and to contact the stabilizer contact portion with the stabilizer of the skate base. The front lower bracket and the front upper bracket are fastened and connected together via a cushioning material, and the axle is mounted so that the axle can be rotated by a weight load to a predetermined angle. Insert the rear support bolt of the skate base into the support bolt insertion hole to reattach the rear lower bracket. The upper bracket is brought into contact with the stabilizer, and the stabilizer abutment portion is brought into contact with the stabilizer of the skate base so that the rear lower bracket and the rear upper bracket are both tightened and connected with each other through a cushioning material. Roller skates characterized by being mounted so that they can be rotated up to a predetermined angle.