TWI598064B - Baby walker - Google Patents

Description

Baby walker with brakes

The present invention relates to a baby walker having a brake device. In detail, it is to prevent the baby walker from falling or falling when facing forward, sideways, encountering thresholds, encountering steps, and the like.

In the prior art EP 0 875 185, a safety device has been described for preventing a baby walker from falling or falling when crossing a threshold or encountering a step. However, the wheel of the prior art can only travel forward or backward, but cannot travel sideways. That is to say, the safety device described in the prior art can only ensure the safety of the baby walker when traveling in the front-rear direction.

In contrast, baby walkers are subject to different regulations in different countries. Baby walkers will move in different directions in different situations. If the baby walker is moving sideways, there is a danger of falling and falling.

Patent literature

Patent Document 1 European Publication No. EP 0875185 (1998.11.04)

Patent Document 2 Japan Registration No. JP 3002924 (1994.07.27)

Patent Document 3 United States Registration No. US 5813681 (1998.09.29)

Patent Document 4 United States Registration No. US 4579359 (1986.04.01)

The present invention has been made to solve the above problems, and it is possible to ensure not only the safety of the baby walker when traveling in the forward and backward directions but also the problem of falling or falling to the step when traveling to the side.

However, the object of the present invention is not limited to solving the problems as described above, and other objects not mentioned can be understood by those having ordinary knowledge in the technical field to which the present invention pertains.

In order to achieve the above objects, the present invention provides a baby walker having a brake device including an upper seat portion, a lower frame, a plurality of casters, and a brake device. The upper seat portion is for receiving an infant, and the upper seat portion is coupled to the lower frame and fixed to the lower frame through a support frame. Below the lower frame are a plurality of casters that can be rotated in all directions. If one of the plurality of casters encounters a bevel to slide down, the brakes ensure the safety of the baby walker and will not cause the walker to fall or fall due to friction on the ground.

On the other hand, in order to prevent the baby walker from rubbing when traveling in the forward or left-right direction, the above-described brake device is provided at the bottom of the lower frame and the bottom inner edge of the lower frame.

In addition, the brake device is located behind the caster with respect to the inclined surface.

In addition, the lower frame brakes are located on either side of the casters.

In addition, the inner brakes are located face to face on both edges of the lower frame, and are disposed in the center of the rear side than the front brakes, so that the baby walker does not move forward when traveling sideways.

In addition, the brake device is divided into a member that is in close contact with the ground for providing friction and a member that determines the height of the brake device.

Further, the friction-providing member is made of rubber, and the height member fitted to the lower frame is divided into a first support portion, a second support portion, and a third support portion, and further includes a first position fixing portion that determines a fitting depth, a second position fixing portion and a third position fixing portion.

Further, in the first support portion, the second support portion, and the third support portion, the second support portion is fitted without a gap, and the first support portion and the third support portion on the both sides have a clearance fit, first The second position fixing portion located in the middle of the position fixing portion, the second position fixing portion, and the third position fixing portion is configured to make the second support portion higher than the first support portion and the third support portion on both sides, and The seesaw type is formed in close contact with the ground by the second support portion.

Another object of the present invention is to assume that when the baby walker is traveling sideways, it is assumed that there is a virtual line that is located near the bevel caster. The brakes are located behind the virtual line so that when the baby walker approaches the slope, it does not cause a collision or rollover due to friction with the ground.

In addition, the virtual line is located on the horizontal line of one or both casters; the brake device is located on the vertical virtual line.

In summary, the present invention not only ensures that the baby walker does not crash or roll over when traveling in the forward and backward directions, but also ensures safety when traveling to the side.

Further, the member of the present invention can have any irregularities and also has a certain effect on the appearance.

10‧‧‧Baby walker

20‧‧‧ horizontal dotted line

30‧‧‧ vertical dotted line

110‧‧‧ upper frame

120‧‧‧Seat department

200‧‧‧lower frame

211~218‧‧‧Frame brake device

221, 222‧‧‧ inside brakes

230‧‧‧ brake parts

231‧‧‧ Closed Department

232‧‧‧ Height Department

233, 233a~233c‧‧‧Support

234, 234a~234c‧‧‧ Position Fixed Department

300, 310~340‧‧‧ casters

400‧‧‧Support frame

The following drawings are intended to provide a better understanding of the present invention in order to further understand the present invention, and are not intended to be limited to the following drawings: FIG. 1 is a perspective view of a conventional baby walker; 2 is an embodiment of the frame brake device of the present invention; FIG. 3 is a view showing an embodiment of the inner brake device of the present invention; FIG. 4 is a view showing another embodiment of the inner brake device of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS Fig. 6 is an explanatory view of a support member and a position fixing member in the present invention.

Embodiments of the present invention will now be described with reference to the drawings.

The names of the structural elements defined in the description of the present invention are defined in consideration of the functions in the present invention. Therefore, it cannot be understood that this is the meaning of defining the technical structural elements of the present invention. Moreover, the names of the respective structural elements may be referred to by other names in the technical field to which the present invention pertains.

Baby walker with brakes

The present invention provides a baby walker with a brake device that is suitable for infants under one year old (or less than two years old). It is an invention to prevent the baby from falling or falling when riding a walker on a threshold or step. Hereinafter, a baby walker having a brake device will be described in detail with reference to the drawings.

As shown in FIG. 1, the baby walker 10 is roughly divided into an upper seat portion, a lower frame 200, casters 300, and a support frame 400. Since the various structural elements described above are the same as those well known in the prior art, they will not be described in detail herein. Without affecting the invention The case of technical ideas will be used as a reference. First, the upper seat portion is a seat portion 120 and an upper frame 110 that accommodate the infant. The upper seat portion is above the lower frame 200 at a height that allows the infant's feet sitting on the seat portion 120 to step on the ground. The upper frame 110 can be supplemented with entertainment equipment such as music and toys.

As shown in FIG. 1, the lower frame 200 is fixed to the caster 300; the upper seat portion and the lower frame 200 are fixed to the upper and lower sides of the support frame 400; and the support frame 400 supports the upper seat portion and the lower frame 200 in an intersecting manner. The lower frame 200 has a larger diameter than the upper frame 110 and is made to resemble a square or a rectangle. The materials and shapes of the upper frame 110, the lower frame 200, and the support frame 400 can be arbitrarily selected without affecting the technical idea of the present invention. Below the lower frame 200, there is a brake device for preventing the baby walker from rolling over or falling, which will be described with reference to Figs. 2 and 5.

The bottom of the lower frame 200 of Fig. 1 incorporates four casters 300, and the implementation is described below. As shown in FIG. 2, the first casters 310 of the four casters are at the upper left end; the second casters 320 of the four casters are at the upper right end; the third casters 330 of the four casters are at the lower left end; the four casters are The fourth caster 340 is located at the lower right end. Obviously, the definitions of left and right, up and down will change according to different benchmarks. Here, although there are only four casters 310, 320, 330, and 340 of FIG. 2, we can reduce or increase the number according to the situation.

Frame brake devices 211 to 218 having a certain length and width are respectively disposed in the vicinity of each of the casters 310, 320, 330, and 340. That is, the first caster 310 has first and fifth frame brake devices 211, 215; the second caster 320 has second and seventh frame brake devices 212, 217; the third caster 330 has a third and adjacent The sixth frame brake devices 213, 216; the fourth and eighth frame brake devices 214, 218 are adjacent to the fourth caster 340. As shown in FIG. 2, the first to fourth frame brake devices 211, 212, 213, 214 are disposed in the horizontal direction, and the fifth to eighth frame brake devices 215, 216, 217, 218 are disposed in the vertical direction.

Prevents the baby walker from falling and falling when moving in the forward and backward directions

As shown in Fig. 2, it is assumed that the baby walker travels forward. When the first and third casters 310, 330 are to pass over the edge of the sill or inclined surface, the first and third frame brake devices 211, 213 are in close contact with the ground surface (by friction or adhesion), so that the baby walker No longer moving forward, thus preventing the baby walker from rolling over or falling.

In addition, assume that the baby walker travels backwards. When the second and fourth casters 320, 340 encounter the threshold or travel to the edge of the ramp, the second and fourth frame brakes 212, 214 are in intimate contact with the ground surface (due to friction or adhesion), allowing the baby to walk The car no longer moves forward, thus preventing the baby walker from rolling over or falling. The advancement of the forward or backward direction described above may include advancing at a certain angle (0 to 90 degrees).

Prevent the baby walker from falling and falling while heading sideways

As shown in FIG. 2, casters 310, 320, 330, and 340 can be rotated in all directions in accordance with an embodiment of the present invention. That is, as shown in FIG. 2, when the infant moves the baby walker with his or her feet, it can move forward and backward, and can also move sideways as shown in FIG. At this time, the lateral movement may include advancing at an angle of 0 to 90 degrees.

As shown in FIG. 3, when the baby walker is traveling in the side direction, the fifth to eighth frame brake devices 215, 216, 217, 218 located in the vertical direction alone cannot completely prevent the baby walker from being stepped on the ladder. The previous rollover, falling and other accidents. To this end, the inventors have conducted a series of experiments and found that the inner brake devices 221, 222 shown in Fig. 3 can be used to solve the above problems. That is, the inner brake devices 221, 222 are opposed to each other according to an embodiment of the present invention. It is disposed at the inner side edge of the lower frame 200. Therefore, the first to eighth frame brake devices 211 to 218 should be disposed horizontally or vertically on the lower surface of the lower frame 200; the inner brake devices 221, 222 should be connected to the top of the inner edge of the lower frame 200. At this time, the inner edge surface of the lower frame 200 is on the surface close to the center of the lower frame 200, and the outer edge surface of the lower frame 200 is assumed to be away from the center of the lower frame. As an example of the inner brake devices 221, 222, as shown in FIG. 3, the first inner brake device 221 is located between the first caster 310 and the second caster 320 and is located at the top of the inner edge of the lower frame 200. The second inner brake device 222 is also provided with an inner edge to correspond to the first inner brake device 221 between the third caster 330 and the fourth caster 340. A vertical dashed line 30 is assumed on the basis of the baby walker, and the first and second inner brake devices 221, 222 should be placed on this dotted line. The vertical dashed line divides the baby walker at the center of the first and second inner brakes 221, 222. The first and second inner brake devices 221, 222 are on both lateral sides of the center point. Further, the first inner and second casters 310 and 320 disposed on both sides of the upper end are assumed to be horizontal dashed lines 20, and the first inner brake device 221 should be disposed behind the broken line 20. That is, the first inner brake device 221 should be disposed behind the first and second casters 310, 320. If not, the original function of the brake device will not be achieved. Like the first inner brake device, the second brake device 222 should be disposed behind the horizontal lines of the third and fourth casters 330, 340. As shown in FIG. 3, the first inner brake device 221 is for preventing an accident when the baby walker travels toward the side, and the second inner brake device 222 is for preventing an accident in the opposite direction.

The horizontal dashed line 20 described above changes with the position of the casters 310, 320, 330 and 340, that is, the position of the inner brakes 221, 222 varies with the position of the casters 310, 320, 330 and 340.

On the other hand, in Fig. 3, although there is only one first and second inner side brake devices 221, 222, a plurality of inner side brake devices may be provided at the inner side edges of the upper end and the lower end as needed.

As another example of the inner brake devices 221, 222, as shown in FIG. 4, the first inner brake device 221 should be disposed between the first caster 310 and the second caster 320 near the top of the inner edge of the lower frame 200, and the second The inner brake device 222 should be disposed between the third and fourth casters 330, 340 corresponding to the first inner brake device 221. The first and second inner brake devices 221, 222 should be on the right or left side of the vertical dashed line 30 (may be disposed on the right side of the dashed line as shown in FIG. 4, and may also be disposed on the left side of the broken line). That is, the first and second inner brake devices 221, 222 should be disposed on the left and right sides of the vertical dashed line. The vertical dashed line is the virtual line that bisects the baby walker, and the inner brakes 221, 222 should not be placed on this line. The first and second inner brake devices 221, 222 are disposed on the left and right sides of the respective center points. Furthermore, the first inner brake device 221 is disposed behind the horizontal line 20 of the first and second casters 310, 320. That is, the first inner brake device 221 is to be disposed behind the first and second casters 310, 320. If the first inner brake device 221 is disposed in front of the horizontal line of the first and second casters 310, 320 or on the horizontal line, the occurrence of an accident cannot be prevented. Like the first inner brake device 221, the second inner brake device 222 should also be disposed behind the horizontal lines of the third and fourth casters 330, 340. That is, the second inner brake device 222 should be disposed behind the third and fourth casters 330, 340. Therefore, as shown in FIG. 3, the first inner brake device 221 can prevent a rollover accident when the baby walker encounters a step when traveling in the side direction, and the second inner brake device 222 can prevent an accident in the opposite direction to the figure. . At this time, as shown in FIG. 4, the second and fourth frame brake devices 212, 214 may not exist.

Brake unit

As shown in FIGS. 2 and 3, the frame brake devices 211 to 218 and the inner brake devices 221 and 222 can be realized by a brake member 230 as shown in FIG. The upper end of the brake member 230 is provided with a closing portion 231 made of rubber, and the lower end of the closing portion 231 has a height portion 232 that determines the height of the lower end brake member 230. When the baby walker travels to the step or threshold, the tight portion 231 rubs against the ground to stop the advancement of the baby walker; the tight portion 231 can be made of rubber. Further, as shown in FIGS. 2 and 3, the closed portion 231 can be formed into a rugged shape such as a wave, so that the ground can be better grasped. The height portion 232 is a member for setting the height of the brake member 230; the height portion 232 may be made of a material similar to plastic.

The height H of the brake member 230 changes with the height of the casters 310, 320, 330, and 340. If the heights of the casters 310, 320, 330, and 340 are relatively high, the height of the brake device 230 is increased in order to increase friction with the ground. Furthermore, the length L varies with the length and width of the baby walker lower frame 200. The frame brake devices 211 to 218 and the inner brake devices 221 and 222 can be made of the same size or can be made to have different sizes as required. The length, width, and height of the brake member 230 are approximately 14 cm, 3.2 cm, and 4 cm. However, as described above, this value can be adjusted depending on the height of the caster and the length and width of the lower end frame of the baby walker.

Further, as shown in FIGS. 3 and 4, the inner brake device 221 should be disposed at an inner edge from the d of the upper frame 110. At this time, d is approximately 20 to 30 cm.

According to an embodiment of the present invention, the inside of the height portion 232 of the brake member 230 has a first support portion 233a, a second support portion 233b, a third support portion 233c, a first position fixing portion 234a, and a second position as shown in FIG. The fixing portion 234b and the third position fixing portion 234c. The first to third support portions 233a, 233b, 233c are located at a lower cut surface of the height portion 232 in a circular direction The outer protrusions; the first to third support portions 233a, 233b, 233c may be made of a material such as plastic. The first to third support portions 233a, 233b, 233c are connected to the three openings on the lower end frame 200. There is a gap between the first and third support portions 233a, 233c when connected, so that there is no gap between the second support portion 233b and the second support portion 233b. Further, when the first to third support portions 233a, 233b, and 233c are inserted into the opening, the height thereof is set, and the first and third position fixing portions 234a, 234b, and 234c are prepared. That is, when the first to third support portions 233a, 233b, 233c are inserted, the second support portion 233b is higher than the first and third support portions 233a, 233c, and the first support portion 233a and the third support portion 233c The height must be the same. The second support portion 233b has no gap, and the first and third support portions 233a, 233c have a gap, and the height of the second support portion 233b is higher than the others, so that the brake member 230 is the second support portion 233b. The shaft forms a seesaw that increases the friction with the ground.

The first to third support portions 233a, 233b, 233c are located in the inner longitudinal direction of the height portion 232, and are approximately located at the center. The first to third position fixing portions 234a, 234b, and 234c are located substantially in a rectangular shape on both sides of the first to third support portions 233a, 233b, and 233c. At this time, the support portion 233 is higher than the position fixing portion 234, and in particular, the second position fixing portion 234b is protruded from the first and third position fixing portions 234a, 234c so that the second support portion 233b is higher at the time of insertion.

Although not shown on the drawing, the above-described brake member 230 can be adjusted in height by pressing. In particular, the inner brake can be folded 90 degrees in the vertical direction. The attachment can be prevented from being too close to the ground by pressing and folding, and maintaining its elegant appearance.

In addition, a tilt sensor can also be provided in the baby walker; when the baby walker is tilted, the sensor receives the data to control its pressing and folding.

Hereinabove, the present invention has been described with reference to an embodiment. However, the present invention is not limited thereto, and various modifications and applications can be made to the present invention. That is, the invention can be modified and applied by those having ordinary skill in the art without departing from the scope of the invention. Further, some elements that affect the subject matter of the present invention are omitted.

10‧‧‧Baby walker

110‧‧‧ upper frame

120‧‧‧Seat department

200‧‧‧lower frame

300‧‧‧ casters

400‧‧‧Support frame

Claims (9)

A baby walker with a brake device, comprising: an upper seat portion for accommodating a baby; a lower frame supporting the upper seat portion with the support frame as a center; and a plurality of casters Fixed to the lower frame in an all-round rotation; and a brake device fixed to the lower frame, the brake device rubbing against the ground when the caster on one side slides down the inclined surface to prevent rollover and falling accidents; The brake device includes a frame brake device and an inner brake device, the frame brake device being disposed at the bottom of the lower frame to prevent friction with the ground when the baby walker is traveling forward to prevent the advancement of the baby walker; An inner brake device is disposed on the inner side edge of the lower frame to prevent friction of the baby walker as it travels toward the side. A baby walker according to claim 1, wherein the brake device is disposed on a rear side of the caster adjacent to the inclined surface. The baby walker of claim 2, wherein the brake device is disposed on both sides of the caster. The baby walker of claim 2, wherein the inner brake device is face-to-face disposed on both sides of the inner side of the lower frame; when the baby walker is traveling toward the side, the inner brake device is forwarder than the front The frame brakes are located at the center or rear of the rear side to prevent the baby walker from advancing. The baby walker of claim 1, wherein the brake device is composed of at least one brake component having an upper side for grounding A close-contact portion that provides a frictional force and a height portion that determines the height of the brake device. The baby walker of claim 5, wherein the fastening portion is made of rubber, the height portion is embedded in the lower frame, the height portion includes a first support portion and a second support And a third support portion and a first position fixing portion, a second position fixing portion and a third position fixing portion for determining a connection depth between the first support portion, the second support portion and the third support portion. The baby walker of claim 6, wherein the first support portion, the second support portion, and the second support portion of the third support portion are connected without a gap, and the two sides are The first support portion and the second support portion are to have a gap connection, and the second support portion is convex than the first support portion and the third support portion, so that the brake member moves in the form of a seesaw and is close to the ground s contact. The infant walker of claim 1, wherein a virtual line is assumed with the caster near the inclined surface, the inner brake device being located behind the dotted line, when the baby walker is moving toward the side direction, The inner brake will rub against the ground to prevent the baby walker from overturning or falling. The baby walker of claim 8, wherein the virtual line is a horizontal virtual line based on the caster on one or both sides, the brake device is based on a baby walker. Vertical imaginary line or on one side of a vertical imaginary line.