WO2022231028A1

WO2022231028A1 - Suspension truck for roller skate or skateboard

Info

Publication number: WO2022231028A1
Application number: PCT/KR2021/005390
Authority: WO
Inventors: 한신규
Original assignee: 한신규
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-11-03

Abstract

The present invention relates to a suspension unit which distributes, as horizontal and vertical components, the load from a skater or boarder transmitted to a truck and the shock transmitted from a road surface through rollers and thereby buffers the horizontal component.

Description

Suspension truck for roller skates or skateboards

The present invention relates to a suspension truck for roller skates or skateboards.

Roller skates include a frame, truck and rollers that attach to the sole of a shoe, and skateboards include a deck, truck, and rollers.

The truck is the part that connects the frame or deck and the rollers.

The truck is a form in which a hanger is connected to a base plate with a kingpin, and is actually a skeleton that supports a skateboard or a shoe. A total of two are installed, one at the front and back of the frame or deck.

Maintaining balance is of great interest to roller skaters and skateboarders, and maintaining such balance is difficult for professional skaters or boarders who need to jump, change direction, and turn.

A device that assists in maintaining this balance is a truck.

The truck is disclosed in Korean Utility Model Publication No. 20-1993-0013190.

In the disclosed truck, an elastic ball is interposed between the wheel hub and the substrate to assist in maintaining the balance, and serves to alleviate the impact transmitted through the roller.

However, since the disclosed truck has a structure that mitigates the impact in the vertical direction, it always receives the load of the skater or boarder during skating and buffers the road impact in the gravity direction transmitted through the roller, so it is provided in the truck There is a problem that the force in the direction of gravity is concentrated on the elastic ball, so that the elasticity of the elastic ball is easily lowered in a short period of time.

The present invention has a problem in solving the above problems.

The present invention can solve the above problem by dispersing the load of skaters or boarders transmitted to the truck and the road impact force transmitted through rollers into a horizontal component and a vertical component to provide a suspension unit that cushions the horizontal component.

In addition, the present invention is preferable from the viewpoint of reducing the number of parts and reducing maintenance costs compared to the prior art if one suspension unit is provided for two rollers provided in the truck.

The present invention provides a buffer for the horizontal component by dispersing the load and the road impact force of the skater or the boarder transmitted in the vertical direction into the vertical component and the horizontal component by means of solving the problem as described above, thereby having a smaller elasticity than the prior art. Since the suspension part can be implemented by the spring, the manufacturing cost can be reduced and it can be possible to use the spring without aging of elasticity for a long time than in the prior art.

In addition, by providing one suspension part for two rollers, the present invention can reduce the number of parts and reduce maintenance costs compared to the prior art.

1 is an assembled perspective view of a suspension truck for a skateboard;

Figure 2 is a side view of Figure 1;

Figure 3 is an exploded perspective view of Figure 1;

Figure 4 is a side view of Figure 3;

5 is an assembled front view of a suspension truck for roller skates, and

Fig. 6 is a perspective view of Fig. 5;

Hereinafter, a suspension truck for a skateboard and a suspension truck for a roller skate according to the present invention will be described in detail with reference to the accompanying FIGS. 1 to 6 .

(Example 1)

In Fig. 1, a suspension truck for a skateboard of the present embodiment is indicated by reference numeral 100. As shown in FIG.

The suspension truck 100, as shown in FIGS. 1 to 4, includes a main body 10; a hanger bar 20 having one end integrally coupled to the lower surface of one side of the main body 10 in the traveling direction, the other end extending downward and then bending and extending to the other side in the traveling direction; a horizontal axis 30 extending in a horizontal direction perpendicular to the traveling direction through a through hole 22 formed in the bent portion 21 of the hanger bar 20; a pair of arms 40 having the other end rotatably mounted on the other side in the traveling direction on both sides of the horizontal shaft 30 with the hanger bar 20 interposed therebetween; a pair of roller hubs 50 having one end mounted on one end of the pair of arms 40 located on one side in the running direction and extending in a direction opposite to each other and horizontally at the other end; a pair of rollers 60 rotatably circumscribed at the other end of the roller hub 50; and a suspension unit 70 for buffering the horizontal component by dispersing the load of the border and the road impact force transmitted through the pair of rollers 60 into a horizontal component and a vertical component.

The suspension unit 70 includes a bracket 71 having an upper end mounted on the other end of the main body 10 in the traveling direction and having a lower end mounted on the other end of the hanger bar 20 in the traveling direction; The opposite ends of the pair of arms 40 are disposed on the inside of the hanger bar 20 by abutting in the running direction with the protrusions 41 formed to protrude upward and protruding in the running direction, and are horizontally perpendicular to the running direction. a stopper 72 extending in the direction; a spring (73) having both ends interposed between the stopper (72) and the bracket (71) so as to be in elastic contact with the stopper (72) and the bracket (71); and a pair of arms 70 installed in a portion adjacent to the bent portion 21 among the portions of the longitudinal extension portion 23 of the hanger bar 20 extending in the running direction and extending in the horizontal direction perpendicular to the running direction. A second stopper ( 74) is included.

In addition, the suspension truck 100 further includes a steering unit 80 that assists a skateboarder to change direction.

The steering part 80, the lower plate 82 mounted on the upper surface of the main body 10 through the fastening means (S); a pair of first bearings 83 protruding upward from the center upper surface of both ends of the lower plate 82 in the traveling direction and having a pair of first through-holes 83a that are penetrated in the traveling direction and coincide with the central axis; an upper plate (84) mounted on a board (not shown) by falling upward with respect to the lower plate (82); A pair of second through-holes 84a protruding downward from the center bottom surface of both ends of the upper plate 84 in the traveling direction and penetrating in the traveling direction to have a pair of second through-holes 84a having a central axis coincident with the central axis. bearing (85); A pair of twin shafts 86 inserted into the pair of first and

second bearings

84 and 85 to rotate the upper plate 84 with respect to the lower plate 82 about the central axis. ; Both ends are inserted into two pairs of sheets 87 formed to face each other at a distance in the horizontal direction perpendicular to the running direction on the bottom surface of the upper plate 84 adjacent to the bracket 71 and the upper surface of the lower plate 82. a pair of springs 89 interposed between the lower surface of the upper plate 84 and the upper surface of the lower plate 82 to provide a restoring force to the pivoting motion of the upper plate 84; and a ball 81a formed at the lower end is swingably mounted on the seat portion 11 protruding in one direction from the center of one end of the main body 10, and is oscillating from the center of one end of the upper plate 84 to one side A universal joint 81 having an upper end oscillatingly penetrated through a through hole 84c provided in the protruding portion 84b is included.

When the suspension truck 100 configured as described above is applied to a skateboard, it is mounted on the underside of the front and rear of the board (not shown).

In the suspension truck 100 having such a configuration, when the border is mounted on the board, the load of the border is applied to the upper plate 84 , the lower plate 82 , the main body 10 , the hanger bar 20 , and the horizontal axis 30 . , the pair of arms 40, the pair of roller hubs 50, and the pair of rollers 60 are sequentially transmitted, so that the pair of rollers 60 is pressed against the road surface.

At this time, the load of the border causes the pair of arms 40 to pivotally move in the direction under the board by using the pair of roller hubs 50 as a point, and the pair of arms 40 pivotally moved. Since the protrusion 41 of the side presses the stopper 42 to compress the spring 73, the load of the border is divided into a vertical component and a horizontal component by a pair of arms 40, and the spring 73 is Only the horizontal component, which is smaller than the load of

In addition, the impact force transmitted from the road surface when driving in an uneven road surface is a pair of rollers 60 , a pair of roller hubs 50 , a pair of arms 40 , a horizontal shaft 30 , and a hanger bar. 20, the main body 10, the lower plate 82, the upper plate 84, and the board is transmitted to the boarder riding on the board.

At this time, the impact force of the road surface causes the pair of arms 40 to pivotally move in the direction under the board with the horizontal axis 30 as a point, and the protrusions 41 of the pair of arms 40 pivotally moved. ) pushes the stopper 42 to compress the spring 73, so the impact force of the road surface is divided into a vertical component and a horizontal component by a pair of arms 40, and the spring 73 is smaller than the impact force of the road surface. Only the horizontal component is pressurized to act as a buffer.

Accordingly, the spring 73 provides a buffer for the horizontal component of the border load and the road impact force among the border load and road impact force distributed in the horizontal component and the vertical component by the pair of arms 40, Since the suspension unit can be implemented by a spring having a smaller elasticity than in the prior art, it is possible to reduce manufacturing cost and use the spring without aging of elasticity for a long time than in the prior art.

In addition, in the suspension truck 100 , since one suspension unit 70 is provided for a pair of rollers 60 , the number of parts is reduced and maintenance costs are reduced compared to the related art.

The steering unit 80 provided in the suspension truck 100 may be operated as follows.

When the center of the border is tilted to one side in the horizontal direction perpendicular to the running direction for steering while riding on the board, one spring 89 disposed on one side of the pair of springs 89 is compressed, and universal When the upper plate 84 is inclined to one side in the horizontal direction perpendicular to the traveling direction by receiving the guide of the joint 81, and the center of the border is in the direction of gravity, by the restoring force of the compressed one spring 89 and The upper plate 84 is parallel to the traveling direction by receiving the guide of the universal joint 81 .

In addition, when the center of the border is tilted to the other side in the horizontal direction perpendicular to the running direction, the other spring 89 disposed on the other side of the pair of springs 89 is compressed, and the guide of the universal joint 81 is received. When the upper plate 84 is inclined to the other side in the horizontal direction perpendicular to the traveling direction and the center of the border is in the direction of gravity, the restoring force of the other compressed spring 89 and the guide of the universal joint 81 , and the upper plate 84 is parallel to the running direction.

(Example 2)

In Fig. 5, a suspension truck for roller skates of the second embodiment is indicated by reference numeral 200. As shown in Figs.

The suspension truck 200, as shown in Figs. 5 and 6, the main body 10 mounted on the bottom of the shoe not shown; In a state in which both ends are integrally coupled to the bottom surfaces of both sides of the main body 10 in the running direction, the hanger bars 20 extend downward from both ends and are bent and extend in the direction facing each other in the running direction; a pair of horizontal shafts 30 extending in a horizontal direction perpendicular to the traveling direction through a pair of through-holes 22 (see FIG. 3) formed in a pair of bent portions 21 of the hanger bar 20; two pairs of arms 40 having inner ends rotatably mounted on both sides of the pair of horizontal shafts 30 in the traveling direction with the hanger bar 20 interposed therebetween; two pairs of roller hubs 50 having one end mounted on the outer end of the pair of arms 40 outside the traveling direction and extending in the horizontal direction and the other end facing each other; two pairs of rollers 60 rotatably circumscribed at the other ends of the two pairs of roller hubs 50; and a pair of suspension parts 70 for buffering the horizontal component by dispersing the skater's load and the road impact force transmitted through the pair of rollers 60 into a horizontal component and a vertical component.

The suspension truck 200 is equipped with a brake means 210 on one side of the main body 10 .

Each of the pair of suspension parts 70 includes a bracket 71 having an upper end mounted on the inner center of the main body 10 in the running direction and having a lower end mounted on the inner center of the hanger bar 20 in the running direction; Both ends of the two pairs of arms 40 abut on the protrusion 41 protruding upwardly formed on the inner ends of the arms 40 in the traveling direction are disposed inside the hanger bar 20 in the horizontal direction perpendicular to the traveling direction. A pair of stoppers 72 extending to; a pair of springs (73) having both ends interposed between the pair of stoppers (72) and the bracket (71) so as to be in elastic contact with the pair of stoppers (72) and the bracket (71); and a pair of arms 70 installed in a portion adjacent to the bent portion 21 among the portions of the longitudinal extension portion 23 of the hanger bar 20 extending in the running direction and extending in the horizontal direction perpendicular to the running direction. The protrusions 41 of the two pairs of arms 70 come into contact with the lower portions of the inner ends of the moving direction of It includes a pair of second stoppers 74 to prevent it.

Even in the suspension truck 200 for roller skating having such a configuration, when a boarder rides in shoes for roller skating, it operates and acts in the same way as the suspension truck 100 for a skateboard except for steering.

Claims

main body 10;

a hanger bar 20 having one end integrally coupled to the lower surface of one side of the main body 10 in the traveling direction, the other end extending downward and then bending and extending to the other side in the traveling direction; a horizontal axis 30 extending in a horizontal direction perpendicular to the traveling direction through a through hole 22 formed in the bent portion 21 of the hanger bar 20;

a pair of arms 40 having the other end rotatably mounted on the other side in the traveling direction on both sides of the horizontal shaft 30 with the hanger bar 20 interposed therebetween;

a pair of roller hubs 50 having one end mounted on one end of the pair of arms 40 located on one side in the running direction and extending in a direction opposite to each other and horizontally at the other end;

a pair of rollers 60 rotatably circumscribed at the other end of the roller hub 50; and

It includes a suspension unit 70 for buffering the horizontal component by dispersing the load of the border and the road impact force transmitted through the pair of rollers 60 into a horizontal component and a vertical component,

The suspension unit 70 is

a bracket 71 having an upper end mounted on the other end of the main body 10 in the running direction and having a lower end mounted on the other end of the hanger bar 20 in the running direction;

The opposite ends of the pair of arms 40 are disposed on the inside of the hanger bar 20 by abutting in the running direction with the protrusions 41 formed to protrude upward and protruding in the running direction, and are horizontally perpendicular to the running direction. a stopper 72 extending in the direction;

a spring (73) having both ends interposed between the stopper (72) and the bracket (71) so as to be in elastic contact with the stopper (72) and the bracket (71); and

Among the portions of the longitudinal extension portion 23 of the hanger bar 20 extending in the running direction, it is mounted on a portion adjacent to the bent portion 21 and extends in the horizontal direction perpendicular to the running direction of the pair of arms 70 A second stopper 74 that is in contact with the lower part of the other end and prevents the protrusion 41 of the pair of arms 70 from turning in a direction further away from the bracket 71 about the horizontal axis 30 . ) Suspension truck for a skateboard, characterized in that it comprises.
The method of claim 1,

It further includes a steering unit 80 that assists the skateboarder to change direction,

The steering unit 80,

a lower plate 82 mounted on the upper surface of the main body 10 through a fastening means (S);

a pair of first bearings 83 protruding upward from the center upper surface of both ends of the lower plate 82 in the traveling direction and having a pair of first through-holes 83a that are penetrated in the traveling direction and coincide with the central axis;

an upper plate 84 mounted on the board while falling upward with respect to the lower plate 82;

A pair of second through-holes 84a protruding downward from the center bottom surface of both ends of the upper plate 84 in the traveling direction and penetrating in the traveling direction to have a pair of second through-holes 84a having a central axis coincident with the central axis. bearing (85);

A pair of twin shafts 86 inserted into the pair of first and second bearings 84 and 85 to rotate the upper plate 84 with respect to the lower plate 82 about the central axis. ;

Both ends are inserted into two pairs of sheets 87 formed to face each other at a distance in the horizontal direction perpendicular to the running direction on the bottom surface of the upper plate 84 adjacent to the bracket 71 and the upper surface of the lower plate 82. a pair of springs 89 interposed between the lower surface of the upper plate 84 and the upper surface of the lower plate 82 to provide a restoring force to the pivoting motion of the upper plate 84; and

A ball 81a formed at the lower end is swingably mounted on the seat portion 11 protruding in one direction from the center of one end of the main body 10 and protrudes in one direction from the center of one end of the upper plate 84 . Suspension truck for a skateboard, characterized in that it includes a universal joint (81) whose upper end is swingably penetrated through a through hole (84c) provided in the formed protrusion (84b).
The main body 10 is mounted on the bottom of the shoe;

In a state in which both ends are integrally coupled to the bottom surfaces of both sides of the main body 10 in the running direction, the hanger bars 20 extend downward from both ends and are bent and extend in the direction facing each other in the running direction;

a pair of horizontal shafts 30 extending in a horizontal direction perpendicular to the traveling direction through a pair of through-holes 22 formed in a pair of bent portions 21 of the hanger bar 20;

two pairs of arms 40 having inner ends rotatably mounted on both sides of the pair of horizontal shafts 30 in the driving direction with the hanger bar 20 interposed therebetween;

two pairs of roller hubs 50 having one end mounted on the outer end of the pair of arms 40 outside in the running direction and extending in the horizontal direction and the other end facing each other;

two pairs of rollers 60 rotatably circumscribed at the other ends of the two pairs of roller hubs 50; and

A pair of suspension parts 70 for buffering the horizontal component by dispersing the skater's load and the road impact force transmitted through the pair of rollers 60 into a horizontal component and a vertical component,

Each of the pair of suspension parts 70,

a bracket 71 having an upper end mounted on the inner center of the main body 10 in the running direction and having a lower end mounted on the inner center of the hanger bar 20 in the running direction;

Both ends of the two pairs of arms 40 abut on the protrusion 41 protruding upwardly formed on the inner ends of the arms 40 in the traveling direction are disposed inside the hanger bar 20 in the horizontal direction perpendicular to the traveling direction. A pair of stoppers 72 extending to;

a pair of springs (73) having both ends interposed between the pair of stoppers (72) and the bracket (71) so as to be in elastic contact with the pair of stoppers (72) and the bracket (71); and

Among the portions of the longitudinal extension portion 23 of the hanger bar 20 extending in the running direction, it is mounted on a portion adjacent to the bent portion 21 and extends in the horizontal direction perpendicular to the running direction of the pair of arms 70 Prevents the protrusions 41 of the two pairs of arms 70 from turning in a direction further away from the bracket 71 about the pair of horizontal axes 30 by being in contact with the lower portions of the inner ends in the running direction. Suspension truck for roller skates, characterized in that it comprises a pair of second stoppers (74).