JPS5851802Y2 - walker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a walker, and particularly to a walker with an oval ring and three legs.

Conventional walkers have a structure with a circular ring and four legs.

According to this prior art, infants often crawl onto the table or lean backwards in frustration, making them prone to falling, and when they do, they fall head first, which is very dangerous.

In addition, two of the four legs are diagonally in front of the seating area, making it difficult for infants to exercise because their feet bump into each other.

Moreover, since it has many legs, it has the disadvantage that it is heavy and difficult for weak infants to move.

Furthermore, as shown in FIG. 1, reinforcing ribs 2a protrude from the edge of the back surface of the table base 2, but the conventional walker has a ring 5 having a perfect circular shape when viewed from the plane. Now, the two legs 4 just connected to the table base 2,
Since the bent portion 4C of No. 4 hits the rib 2a of the table base, the thickness of the walker increases accordingly even when folded.

Moreover, since it was not possible to provide a notch in the rib 2a of the table base portion 2 in order to maintain the necessary strength, it was impossible to cut out the rib 2a and store the bent portion 4a.

In other words, the thickness when folded is the thickness x of the table base part 2
Thickness X that is the sum of the thickness X2 of the bent portion 4C, the thickness X3 of the leg 4, the thickness X4 of the ring 5, and the thickness X5 of the caster 6 =
4 + Xs.

If the device is thick when folded, it takes up a lot of storage space and is inconvenient to carry.

The present invention was devised in view of the problems of the prior art.The ring of the walker is formed into an oval shape in the front-rear direction, and it is composed of three legs, one of which is placed in the front. The purpose is to make it easier for children to move their legs when they fall, to be lightweight, and to be very thin when folded, making it easy to store and carry.

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

Figures 2 to 5 show the first embodiment of the present invention.
Reference numeral 1 denotes a table, which is composed of a front table base part 2 and a support frame 3 that is integrally molded with the table base part 2 and surrounds a substantially circular opening 7.

The inner edge and outer edge of this table 2 are each reinforcing ribs 2 a
, 3 a , 2 a', and 3 a' are formed.

This is to provide strength to withstand infants climbing onto the table 1.

A seating portion 9 is fixed to the support frame 3 of the table 1 and the table base 2 so as to be adjustable in height, and is suspended below the opening 7.

Second. In FIG. 3, 4.4' and 4' are three leg parts, and the upper ends of the three leg parts 4 are rotatably connected to the front lower surface of the table base part 2.

This is to allow infants to move their legs freely by having one leg in the front.

Further, as will be explained in detail later, this is to enable the bent portion 4C of the leg portion 4 to be accommodated exactly between the reinforcing ribs 2a and 2a' on the back surface of the table base portion 2.

As shown in FIG.
- It is rotatably attached to the lower surface of the edge of the support frame 3 symmetrically at an angle of about 120 to 125 degrees with respect to the Y line.

The upper central parts of these legs 4.4', 4' are bent parts 4c, 4c', 4c', and these bent parts 4c, 4c', 4c' It is designed to be bent into a dogleg shape toward the opening 7 side of the table 1.

That is, legs 4.4', 4' are leg upper parts 4 a, 4 a'
, 4 a', lower leg portions 4 b, 4 b', 4 b', and bending portions 4 c, 4 that connect these in a foldable manner.
c', 4 c'.

As shown in FIGS. 2 and 4, it is made up of a pair of rods that are elastic and urged outward from each other.

When the pair of rods of the lower legs 4b, 4b', 4b' are pressed inwardly, the locked state is released and the legs can be bent.

Furthermore, these lower legs 4 b, 4 b', 4 b' are the second
．． 4. As shown in Fig. 5, it is bent near the bottom.

5 is the ring, the second. As shown in Figure 3, table 1
With respect to the center O of the opening 7, the rear side forms an almost perfect semicircle, and the front side forms a semi-ellipse that bulges forward.

The ring 5 is formed to be larger than the outer diameter of the table 2 so that the table 2 can fit inside when the legs 4.4', 4' are folded.

The lower ends of the lower legs 4 b , 4 b ′, 4 b ′ are bent and wrapped around the lower side of the ring 5 to be rotatably attached.

6... are casters, which are provided on the lower surface of the ring 5, one pair on each side of the leg part 4 and one on the rear part, and two pairs of casters on the left and right that rotate approximately at the same angle with respect to the center O. It is freely arranged.

Furthermore, reinforcing ribs 2 are formed radially on both sides of the parts of the back surface of the table 1 that come into contact when the legs 4.4' and 4' are folded.
b, 2b, 3b, 3b are formed, and the front leg portion 4 is accommodated between these reinforcing ribs 2b, 2b.

Furthermore, the outer edges 2a' and 3 of the lower surface of this table 1 are
a' has the 4th. As shown in FIG. 5, tongue pieces 8 serving as stoppers having notches 8a at opposing positions are hung down, and the lower leg portions 4b, 4b'
, 4b' are urged outward by their elasticity when folded, fit together, and are fixed.

When extending the leg portions 4.4', 4', each pair of rods of the lower leg portions 4b, 4b', 4b' are pressed inwardly against the elasticity of the tongue pieces 8...・Notch part 8a...
All you have to do is disengage from...

Next, the operation of this embodiment will be explained.

The ring 15 bulges forward and has three legs 4.4', 4', of which one leg 4 is disposed at the front of the table 1 and the ring 5. So leg 4
The folded portion 4C, which has a large thickness, is stored exactly between the reinforcing ribs 2a and 2a' on the back side of the table base 2, and when folded, the entire thickness is the same as that of the table 1, as shown in FIG.
The leg portions 4.4', 4' are fixed to the stopper 8.

FIG. 6 shows a second embodiment of the present invention, in which the ring 1
The shape of 0 bulges in the front-back direction.

The shape of the ring 10 is formed into a substantially elliptical shape when viewed from above, and its major axis direction is aligned with the longitudinal axis of the table 1 at 0-
It is located on the Y line and corresponds to one diagonal direction of a package casing 11 in which the walker is folded and stored.

That is, the size of the casing 11 is a square with one side of a, which is the same as that of a conventional ring which is a perfect circle, and a structure is adopted in which the front and rear directions of the ring 10 are bulged in the diagonal direction 0-Y.

10a is the bulge.

Now, in the walker configured in this way, table 1
Letting the distance from the center O to the tip of the ring 10 be L', L'=VC-a/2, which means that the overturning resistance has been improved by V5 times compared to the conventional one.

The ring 10 has the same extension length in the lateral direction as the conventional ring.

Note that the other components have the same structure as the first embodiment.

According to the present invention, the ring of the walker is formed into an oval shape in the front-rear direction, and it is composed of three legs, one of which is provided at the front, so that infants and children are less likely to fall. It is easy to move your feet, is lightweight, and is very thin when folded, making it easy to store and carry.

[Brief explanation of drawings]

Figure 1 is a vertical end view showing the folded state of the prior art;
．． Third. 4th. Fig. 5 shows the first embodiment of the present invention, Fig. 2 is a perspective view, Fig. 3 is a bottom view in a folded state, Fig. 4 is a partial perspective view in a folded state, and Fig. 5 is a folded state. FIG. FIG. 6 is an explanatory view showing the second embodiment of the present invention in a stored state, and is a plan view. 1...Table, 2...Table base, 2a, 2a'3 a, 3 a', 2b, 3
b---Reinforcement rib, 4, 4', 4'...
・Leg part, 4 c, 4 c', 4 c'...Bended part of leg, 5, 10...Ring, 6...
...Casters, 7...Opening, 9...
Seating area.

Claims (1)

[Scope of utility model registration request] A table that surrounds an opening and has a pedestal in the front and a support frame formed in the rear side, a seating part suspended from the opening of the table, and rotatably connected to the lower surface of the table. A walker comprising a foldable leg, a ring connected to the lower end of the leg and having a diameter larger than the outer diameter of the table, and a caster rotatably fixed to the lower surface of the ring, The ring is formed into a substantially elliptical shape that bulges in at least one direction in the front and rear directions, and the leg portion is composed of three legs, with one leg portion being disposed at the front portion of the table. A walker.