KR200468832Y1

KR200468832Y1 - Child roller sled having automatic brake function

Info

Publication number: KR200468832Y1
Application number: KR2020130004939U
Authority: KR
Inventors: 배주희
Original assignee: 배주희
Priority date: 2013-06-19
Filing date: 2013-06-19
Publication date: 2013-09-11

Abstract

The present invention relates to an infant roller sled having an automatic brake function in which the brake is automatically activated when the speed increases.
Infant roller sled having an automatic brake function according to the present invention, the pin-shaped right fan 200 and the left fan 200 'rotated by the wind, and the right fan 200 and the left fan 200' of The left gear 210 'and the right gear 210 and the left gear 210' which rotate according to the rotation, and the fan shaft 202 which is the center of rotation of the right fan 200 and the left fan 200 'are rotated. Coupling 220 to be selectively connected to the axis of the right gear 210, the center gear 240, which is geared to rotate with the left gear 210 'and the right gear 210, and the center gear ( A first bevel gear 260 coupled to the rear end of the gear shaft 250 and simultaneously rotating with the center gear 240, and the first bevel gear ( 260 and the second bevel gear 270 is rotated geared to the rotation, the braking frame 280 is exposed to the lower side of the body 10, and detachable to the braking frame 280 It has a configuration that includes an extension plate 290 which is installed neunghage. According to the present invention, when the speed is excessively increased, there is an advantage that the safety accident is prevented because the brake is automatically activated.

Description

Child roller sled having automatic brake function

The present invention relates to an infant roller sled having an automatic brake function, and more particularly, to an infant roller sled having an automatic brake function to automatically operate a brake by using a rotational force of a fan (windmill) when the speed increases. It is about.

In general, 'sled' refers to a device for children to slide on ice or snow, and it is common to make wood or metal with wires horizontally from side to side and planks vertically.

On the other hand, wheel sleds are distinguished from general 'sled' sleds, which are equipped with front and rear rollers (wheels) on the body and can be enjoyed while speeding on snow and on general roads (grounds such as playgrounds and roads). Also called.

However, since the roller sled is attached to the wheel (roller), the speed is easily increased compared to the sled on the snow, there are many risk factors for children or infants to use. In particular, when used in the downhill there is a risk of safety accidents due to the increase in speed.

Conventional such roller sleds are disclosed as a number of Korean Utility Model Registration No. 20-0384624 (wheeled roller sled), but such a conventional roller sled is a risk of safety accidents due to speed for infants to use.

In addition, in the case of the infant, even when using a roller sled equipped with a general brake is insufficient ability to operate the brake, there is still a problem difficult to use in places such as downhill.

Korean Utility Model Registration No. 20-0384624

An object of the present invention is to solve the above problems, while installing a plurality of fans having a pinwheel shape in front to increase the curiosity of the infant, the speed of the roller sled using the rotational force generated by the rotation of the fan To provide an infant roller sled having an automatic brake function to automatically prevent excessive increase.

Infant roller sled having an automatic brake function according to the present invention for achieving the object as described above, the body and the child can be seated; A roller provided at a lower end of the body to guide movement of the body; A handle provided at the front end of the body and capable of being held by a child or an infant; A braking pedal, the upper half of which is exposed to the outside of the body and installed to be rotatable by a braking shaft, the braking pedal being rotatable using a foot; A transmission shaft formed in the body in front and rear in a longitudinal direction, and having a lower end portion of the brake pedal rotatably connected to the front end thereof; An arc-shaped braking drum rotatably connected to a rear end of the transmission shaft and formed to have a curvature corresponding to an outer shape of the roller; A braking pad attached to one surface of the braking drum and selectively contacting an outer surface of the roller and made of an elastic material; A right fan and a left fan which protrude toward the front of the body and are rotated by wind; A right gear and a left gear installed on the same shaft at the rear of the right fan and the left fan and rotating according to the rotation of the right fan and the left fan; A coupling for allowing the fan shafts, which are rotation centers of the right and left fans, to be selectively connected to the shafts of the left gear and the right gear; A left lever and a right lever installed to expose an upper end of the body and controlling the coupling to control the coupling between the right fan and the left fan and the left gear and the right gear; A center gear rotatably coupled to the left gear and the right gear; A gear shaft installed in the body in front and rear in a long direction, the front end of which is coupled to the center gear to serve as a center of rotation of the center gear; A first bevel gear coupled to a rear end of the gear shaft to rotate simultaneously with the center gear; A second bevel gear installed vertically to the side of the first bevel gear, the second bevel gear being rotatably coupled with the first bevel gear; A braking frame integrally coupled to the bevel shaft, which is a rotation center of the second bevel gear, and having a lower end exposed to the lower side of the body; It is installed detachably to the braking frame, characterized in that it has a configuration including a; extension plate made of an elastic material.

The extension plate is mounted to be accommodated in the braking frame, a plurality of coupling holes through the coupling bolt is formed at equal intervals in the braking frame, the coupling bolt is penetrated through the upper end of the extension plate A fastening hole is formed therethrough, so that the length of the extension plate exposed from the braking frame can be adjusted even when the extension plate is worn and the length is shortened.

The upper side of the braking frame is further provided with a tension spring for forcing the braking frame to rotate in one direction about the bevel shaft, so that the extension plate on the ground only when the rotational force of the right and left fan is greater than the tension of the tension spring It is characterized by being touched.

According to the infant roller sled having the automatic brake function according to the present invention, it has a general food brake function (normal brake function), while additionally a function (auto brake function) that is automatically prevented from increasing speed is added. Therefore, there is an advantage that safety accidents caused by infants or children do not speed downhill are prevented.

In other words, even if the speed is increased in the slopes, it is difficult for the infant to step on the brake pedal. In the present invention, when the sled speeds on the slope, the right and left pans of the pinwheel shape are rotated to generate rotational force. It is delivered to this extension plate and the extension plate touches the ground (ground) to automatically brake.

On the other hand, when the user wants to grow enough to feel the speed, the left lever and the right lever are pulled forward to separate the coupling. In this case, since the rotation of the fan shaft is not transmitted to the extension plate, the automatic brake function is not activated. Therefore, since the automatic brake function can be used as needed, there is an advantage that the convenience of use is increased.

In addition, in the present invention, the extension plate is made of a rubber material, and the length of the extension plate can be adjusted as well as detachable using a bolt. Therefore, when the extension plate is worn, it is necessary to increase the length of the extension plate or replace only the extension plate, thereby improving work efficiency and having the advantage of being used semi-permanently.

1 is a perspective view showing the configuration of a preferred embodiment of the roller sled for infants having an automatic brake function according to the present invention.
Figure 2 is an internal configuration showing a detailed configuration of the present invention embodiment.
Figure 3 is a perspective view showing a connection state of the braking pedal and the braking drum constituting an embodiment of the present invention.
Figure 4 is a plan view showing a configuration in which the rotational force of the right pan and the left pan constituting the embodiment of the present invention is transmitted to the extension plate.
Figure 5 is an exploded perspective view showing a state of the removable extension plate constituting an embodiment of the present invention.
Figure 6 is a block diagram showing a combined state of the center gear and the right gear and the left gear constituting an embodiment of the present invention.

Hereinafter, an infant roller sled having an automatic brake function according to the present invention will be described with reference to the drawings.

1 and 2 are a perspective view and an internal configuration showing the configuration of a preferred embodiment of the roller sled for infants having an automatic brake function according to the present invention, respectively. And, Figure 3 is a perspective view showing a connection state of the braking pedal and the braking drum constituting the embodiment of the present invention, Figure 4 shows the rotational force of the right and left fan constituting the embodiment of the present invention to the extension plate A plan view showing the configuration is shown. In addition, Figure 5 is an exploded perspective view showing a state of the removable extension plate constituting the embodiment of the present invention, Figure 6 shows a combined state of the center gear, the right gear and the left gear constituting the embodiment of the present invention. A schematic is shown.

As shown in these drawings, the infant roller sled having an automatic brake function according to the present invention is provided with a body 10 and a lower end of the body 10, which can be seated by children or infants, the movement of the body 10 It is provided with a roller 20 for guiding the handle, a handle 30 which can be held by a child or an infant, and is provided to be rotatable by the braking shaft 102 to be rotated using the foot. The braking pedal 100 and the front end is formed in a circular arc shape formed to have a curvature corresponding to the outer shape of the roller 20 and the transmission shaft 110 is connected to the lower end of the braking pedal 100 is rotatable. A braking drum 120, a braking pad 130 attached to one surface of the braking drum 120 and selectively contacting the outer surface of the roller 20, and a pinwheel-shaped right fan 200 rotated by wind. And the left fan 200 ', the right fan 200 and the left fan 200'. It is installed on the same axis in the rear and rotates according to the rotation of the right fan 200 and the left fan 200 ', the right gear 210 and the left gear 210', and the right fan 200 and the left fan ( A coupling 220 for allowing the fan shaft 202, which is a rotational center of the 200 ′, to be selectively connected to the shafts of the left gear 210 ′ and the right gear 210, and by controlling the coupling 220. The left lever 230 'and the right lever 230 for controlling the connection of the right fan 200 and the left fan 200', the left gear 210 'and the right gear 210, and the left gear ( 210 ') and the right gear 210 and the center gear 240 is rotated geared to the gear, the tip is coupled to the center gear 240, the gear shaft 250 that is the center of rotation of the center gear 240, A first bevel gear 260 coupled to a rear end of the gear shaft 250 and simultaneously rotating with the center gear 240, and a second bevel gear 270 that is geared to rotate with the first bevel gear 260. ), Bottom It is composed of the brake frame 280, which is exposed to the lower side of the body 10, an extension of an elastic material that is detachably mounted to the brake frame 280, plate 290, and the like.

The body 10 has a rectangular box shape with an upper opening as shown in the figure, and a boarding space having a predetermined size that a person can board is formed therein.

The lower portion of the body 10 is provided with a plurality of the roller 20 as shown. That is, rollers 20 made of rotatable wheels are provided at four corners of the body 10 to guide the body 10 to move easily on the ground.

The handle 30, as shown, is provided on the top surface of the front end portion of the body 10, which is a portion that can be held by children or infants.

The handle 30 may be fixed to the body 10 or connected to the roller 20 to be configured to function as a steering device. Since the steering wheel serving as a steering device is a generally known structure, further detailed description is omitted here.

The present invention is equipped with a conventional brake function.

Specifically, the first half of the body 10 is provided with a brake pedal (100). As shown in the figure, the braking pedal 100 has an upper half exposed to the outside of the body 10 and is rotatably installed by the braking shaft 102 to be rotated using the foot. That is, the braking pedal 100 is formed of a rectangular flat plate, the upper half is mounted to be exposed to the internal space formed in the body 10, it is installed so as to rotate around the braking shaft (102).

The transmission shaft 110 is formed long in the front and rear of the body 10, and the lower end of the brake pedal 100 is rotatably connected to the front end of the transmission shaft 110.

The brake drum 120 is rotatably connected to the rear end of the transmission shaft 110, and the brake drum 120 has an arc so as to have a curvature corresponding to the outer shape of the roller 20 as shown. Is formed. That is, the braking drum 120 has a circular shape having a size of 1/4 as shown in FIG. 2, and the front upper half of the roller 20 installed at the rear of the body 10. It is installed to wrap.

The braking drum 120 is installed to rotate the drum hinge 120 ′ on the top thereof.

A braking pad 130 is attached to the lower surface of the braking drum 120, and the braking pad 130 is made of the elastic material, and the roller 20 is operated according to the operation of the braking pedal 100. Contact with the outer surface. That is, the braking pad 130 is normally kept away from the braking pedal 100, and is in contact with the roller 20 installed at the rear side of the body 10 only when the brake function is applied.

Therefore, when the occupant steps on the brake pedal 100 using the right foot in the state of boarding the inner space of the body 10, the brake pedal 100 is transmitted by rotating in the counterclockwise direction (in FIG. 2). Since the shaft 110 is pushed to the rear (right side in FIG. 2), the braking drum 120 rotates counterclockwise (in FIG. 2) about the upper drum hinge 120 ′ as a result. Pad 130 is in close contact with the outer surface of the roller 20 to the brake function.

On the other hand, the present invention is equipped with an automatic brake function that automatically operates the brake, the structure having such an automatic brake function will be described in detail below.

The right side fan 200 and the left side fan 200 'protrude from the front of the body 10, and the right side fan 200 and the left side fan 200' are rotated by wind as shown. It has a pinwheel shape.

The right gear 210 and the left gear 210 'are installed at the rear of the right fan 200 and the left fan 200'. The right gear 210 and the left gear 210 'are installed on the same axis as the right fan 200 and the left fan 200', so that the right fan 200 and the left fan 200 'are rotated. As a result, the right gear 210 and the left gear 210 'are installed to rotate.

A coupling 220 is provided between the right fan 200 and the left fan 200 ', the right gear 210 and the left gear 210', and the right fan 200 and the left fan 200 'are provided. ) And the connection between the right gear 210 and the left gear 210 '.

Specifically, the coupling 220, the fan shaft 202 which is the center of rotation of the right fan 200 and the left fan 200 ', the left gear 210' and the right gear 210 of the It acts to selectively connect with the axis.

The coupling 220 is configured such that two circular structures are in contact with each other to transmit power as shown, and the concave-convex shapes face each other left and right (in FIGS. 2 and 4) on the contact surfaces of the two structures. It is configured to be configured to allow power transmission. Therefore, when these uneven parts are in contact with each other, power transmission is possible, and when separated from each other, power transmission is impossible.

The left lever 230 ′ and the right lever 230 are installed at the front end of the body 10 to control the coupling 220.

The left lever 230 ′ and the right lever 230 are installed such that an upper end thereof is exposed to the upper side of the body 10, and the right fan 200 and the left fan 200 ′ and the left gear 210 are exposed. ') And the right gear 210 to control the connection.

A guide hole 232 for guiding the movement of the left lever 230 'and the right lever 230 is formed in a' c 'shape (when viewed from above) on the top surface of the front end portion of the body 10.

Therefore, when the left lever 230 ′ and the right lever 230 move to the front of the guide hole 232 (the left side in FIG. 2), the coupling 220 is separated to the right fan 200. And the rotational force of the left fan 200 ′ is not transmitted to the left gear 210 ′ and the right gear 210.

On the other hand, when the left lever 230 ′ and the right lever 230 move to the rear of the guide hole 232 (the right in FIG. 2), the coupling 220 is coupled to the right fan 200. And the rotational force of the left fan 200 'is transmitted to the left gear 210' and the right gear 210.

The center gear 240 is installed below the left gear 210 'and the right gear 210. As shown in FIG. 6, the center gear 240 is mounted to rotate with the left gear 210 ′ and the right gear 210 as gears.

Inside the body 10, the gear shaft 250 is installed long before and after, and the front end of the gear shaft 250 (the left end in Figs. 2 and 4) is combined with the center gear 240 and the center gear ( 240 is the center of rotation.

The first bevel gear 260 is coupled to the rear end of the gear shaft 250 as shown. Accordingly, the first bevel gear 260 rotates at the same time as the center gear 240.

The second bevel gear 270 is vertically installed on the side of the first bevel gear 260 to be in contact with each other. That is, the first bevel gear 260 and the second bevel gear 270 are installed so that the rotation centers are perpendicular to each other, and are geared to each other. Therefore, when the first bevel gear 260 rotates, the second bevel gear 270 also rotates.

The second bevel gear 270 rotates about the bevel shaft 272, and the braking frame 280 is integrally coupled to the bevel shaft 272. That is, the braking frame 280 is integrally coupled to the bevel shaft 272 which is the rotation center of the second bevel gear 270, and the lower end of the braking frame 280 is exposed to the lower side of the body 10. It is installed as possible.

The extension plate 290 is detachably installed at the braking frame 280, and the extension plate 290 is made of an elastic material and is installed to be lowered to the lower side of the braking frame 280.

The lower end of the extension plate 290 is usually installed to be located above the lower end of the roller 20, it is preferably configured not to touch the ground.

Further, a tension spring 300 for forcing the braking frame 280 to rotate counterclockwise (in FIG. 2) about the bevel shaft 272 is further provided on the braking frame 280. Therefore, the roller sled according to the present invention runs on a slope such as a downhill at a predetermined speed or more so that the rotational force of the right fan 200 and the left fan 200 ′ overcomes the tensile force of the tension spring 300. The extension plate 290 is to be in contact with the ground to function as a brake. That is, the extension plate 290 is only on the ground when the rotational force of the right fan 200 and the left fan 200 ′ generated by the wind blowing from the front is greater than the tensile force of the tension spring 300. It is installed to reach.

In addition, the extension plate 290 is mounted to be accommodated in the braking frame 280. In addition, as illustrated in FIG. 6, a plurality of coupling holes 282 penetrate at equal intervals in the braking frame 280, and coupling bolts 284 penetrate through the coupling holes 282. It is screwed into the coupling nut 286.

A fastening hole 292 through which the coupling bolt 284 penetrates is formed at an upper end of the extension plate 290. Therefore, when the coupling bolt 284 is mounted through the coupling hole 282 and the fastening hole 292, the extension plate 290 is coupled to the braking frame 280.

In addition, since the plurality of coupling holes 282 are formed at equal intervals in the braking frame 280, the extension plate 290 is braked even when the extension plate 290 is worn and the length thereof is shortened. The length exposed from the frame 280 is to be adjusted.

Hereinafter, look at the operation of the roller sled for children having an automatic brake function according to the present invention having the configuration as described above.

According to the configuration as described above, even if the infant or child rides will have a brake function automatically. That is, when running on a slope, etc., it is difficult for the infant to step on the brake pedal. In the present invention, when the sled increases in a slope on the slope, the right fan 200 and the left side are driven by the wind blowing from the front. When the fan 200 'is about to rotate, and the force that the right fan 200 and the left fan 200' are trying to rotate is greater than the tensile force of the tension spring 300, the right fan 200 and the left side. The fan 200 'rotates.

As such, when the pinwheel-shaped right fan 200 and the left fan 200 ′ rotate, the right gear 210 and the left gear 210 ′ rotate, and the center gear 240 rotates.

When the center gear 240 rotates, the first bevel gear 260 and the second bevel gear 270 rotate so that the braking frame 280 rotates clockwise (in FIG. 2) like the bevel shaft 272. do.

In this case, the extension plate 290 comes into contact with the ground, and automatically acts as a brake.

On the other hand, if the user wants to grow enough to feel a sense of speed, the left lever 230 'and the right lever 230 is pulled forward to be located in front of the guide hole 232 (left end in Figure 2), Allow coupling 220 to be detached.

At this time, the rotation of the fan shaft 202 is not transmitted to the left gear 210 'and the right gear 210, the braking frame 280 is pulled by the tension spring 300 to extend the extension plate 290 Since it does not touch the ground, the auto brake function will not work.

Of course, the present invention is also provided with a braking pedal 100 and a braking drum 120, when the user steps on the braking pedal 100, the normal brake function is activated and the rotation of the roller 20 is stopped.

In addition, in the present invention, the extension plate 290 is made of a rubber material, and the length of the extension plate 290 is adjustable and detachable using the coupling bolt 284. Therefore, when the extension plate 290 is worn, it is necessary to increase the length of the extension plate 290 or replace only the extension plate 290.

The scope of the present invention is not limited to the above-described embodiments, and many other modifications will be possible to those skilled in the art based on the present invention.

10. Body 20. Roller
30. Handle 100. Braking pedal
110. Transmission shaft 120. Braking drum
130. Braking pad 200. Right fan
200 '. Left Fan 210. Right Gear
210 '. Left gear 220. Coupling
230. Right lever 230 '. Left lever
240. Center gear 250. Gear shaft
260. First Bevel Gear 270. Second Bevel Gear
280. Braking frame 290. Extension plate
300. Tension Spring

Claims

A body 10 capable of being seated by a child or infant;
A roller 20 provided at the lower end of the body 10 to guide the movement of the body 10;
A handle 30 provided at the front end of the body 10 and capable of being held by a child or an infant;
A braking pedal 100 exposed to the outside of the body 10 and installed rotatably by the braking shaft 102 to rotate using the foot;
A transmission shaft 110 formed in the body 10 in front and rear, and having a lower end of the brake pedal 100 rotatably connected to the front end thereof;
An arc-shaped braking drum 120 rotatably connected to a rear end of the transmission shaft 110 and formed to have a curvature corresponding to an outer shape of the roller 20;
A braking pad 130 attached to one surface of the braking drum 120 and selectively contacting the outer surface of the roller 20 and made of an elastic material;
A right fan 200 and a left fan 200 'which are formed to protrude toward the front of the body 10 and are rotated by wind;
The right gear 210 and the left gear are installed on the same axis behind the right fan 200 and the left fan 200 'and rotate according to the rotation of the right fan 200 and the left fan 200'. 210 ');
Coupling 220 for allowing the fan shaft 202 which is the rotation center of the right fan 200 and the left fan 200 'to be selectively connected to the shaft of the left gear 210' and the right gear 210 and ;
The upper part is installed to be exposed to the upper side of the body 10, and the right fan 200 and the left fan 200 'and the left gear 210' and the right gear 210 by controlling the coupling 220 A left lever 230 'and a right lever 230 for controlling the connection of the;
A center gear 240 that is geared to rotate with the left gear 210 'and the right gear 210;
A gear shaft 250 which is installed in the body 10 in front and rear in a long way, the front end of which is combined with the center gear 240 to serve as a center of rotation of the center gear 240;
A first bevel gear 260 coupled to a rear end of the gear shaft 250 and simultaneously rotating with the center gear 240;
A second bevel gear 270 that is vertically installed on the side of the first bevel gear 260, and is geared to rotate with the first bevel gear 260;
A braking frame 280 integrally coupled to a bevel shaft 272 which is a rotation center of the second bevel gear 270, and having a lower end exposed to a lower side of the body 10;
Removably installed on the braking frame 280, the extension plate 290 made of an elastic material; having a configuration comprising a child roller sled having an automatic brake function.

The method of claim 1, wherein the extension plate 290 is mounted so as to be accommodated in the braking frame 280, a plurality of coupling holes 282 through which the coupling bolt 284 penetrates the braking frame 280, etc. (Iii) penetratingly formed at intervals, and a fastening hole 292 through which the coupling bolt 284 penetrates is formed at an upper end of the extension plate 290, so that the extension plate 290 is worn and the length is shortened. Even if the extension plate 290 is an infant roller sled having an automatic brake function, characterized in that to adjust the length exposed from the braking frame (280).

The upper side of the braking frame 280 is further provided with a tension spring 300 for forcing the braking frame 280 to rotate in one direction about the bevel shaft 272, the right fan 200 And the extension plate 290 comes into contact with the ground only when the rotational force of the left fan 200 'is greater than the tensile force of the tension spring 300.