JPH0725994Y2 - Seesaw - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safe seesaw that is not caught under a saddle.

[0002]

2. Description of the Related Art In a conventional seesaw, a pair of support bases having an appropriate height from a floor surface are formed, and both ends of a pipe are fixed to the pair of support bases. On the other hand, saddles for infants to sit on are fixed to both ends of the main shaft, and the central portion of the main shaft is rotatably supported by the central portion of the pipe. Further, the cushion portion is provided with a hole through which internal air can flow in and out as the bellows are compressed and expanded by the rotational movement of the seesaw, and a whistle is attached to this hole.

Therefore, the air pressure in the cushion portion formed in the bellows can be utilized to alleviate the impact when the saddle is in contact with the floor surface, and the air due to the compression and extension operation of the bellows portion of the cushion portion. It is configured to sound a whistle as it goes in and out.

With such a construction, when one of the saddles is lowered, the cushion portion comes into contact with the floor surface and the bellows portion is compressed, so that the cushioning property is improved by the internal air pressure and air is supplied to the cushion portion. The idea is such that the whistle sounds every time I go in and out.

[0005]

[Problems to be Solved by the Invention] Since both saddles are supported by the pipe and the support, a wide space is formed between the vicinity of the saddle and the floor surface. Therefore, if an infant or the like accidentally enters this space portion, the vertical movement of the saddle may cause the child to be caught between the saddle and the floor surface, which is very dangerous.

[0006]

According to the present invention, a pair of parallel portions which are in contact with a floor surface and are opposed to each other, and extending from both ends of the parallel portions so as to be inclined with respect to each other in the center line direction, are provided at the top. A frame body formed in a closed loop by the U-shaped inclined portion, a support portion attached to the parallel portion at a position perpendicular to the floor surface, and a support portion at the opposite position. It has a main pipe with both ends supported, and a length from top to bottom, which is rotatably supported by the center of the main pipe and is horizontally balanced with this center as a fulcrum. The main shaft provided and the saddle fixed to both ends of this main shaft,
It is formed into a bellows with a synthetic resin member, and both ends of the saddle and the top of the frame are fixed at the top and bottom in the vertical direction, and a cushion part with air holes is provided. A vertical gap is provided between the floor surface and the back surface of the saddle.

[0007]

According to the present invention, the saddle rotates in the vertical direction with the central portion of the main pipe as a fulcrum. This pivoting range is safe because the top of the frame and the back of the saddle are connected by a cushion portion formed in a bellows, and are restricted by the expanded state and the compressed state of the bellows portion. The movable part formed by the main shaft and the saddle is planarly displayed as being within the range of the frame, so that the dangerous area can be visually recognized.

Further, since a gap having a width corresponding to the compressed state of the bellows is formed between the back surface of the saddle and the floor surface, the infant is not pinched and it is safe. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 to FIG. 3 show a series-1 according to the present invention.
Fig. 2 is a perspective view of a frame body 2 which is formed of a pipe having a semicircular cross section cut in the lengthwise direction, and which extends from both ends of a pair of parallel portions 2a facing each other to the floor. Inclined portions 2b inclined in the direction of the center line along the surface 3
Is extended, and portions of both ends of the inclined portion 2b facing each other at the apex portions 2c are connected in a U-shape to form a substantially rhombic closed loop.
Is formed so that the cross section side in the length direction is in contact with the floor surface 3.

Reference numeral 4 denotes a support portion, which is a plate-shaped base portion 4a and a U-shaped portion 4 fixed to the upper surface of the base portion 4a.
b and a bearing portion 4c which is fixed to the center of the U-shaped portion 4b and rotatably supports the main pipe 5. The support portion 4 is fixed to the parallel portion 2 a of the frame body 2 so as to face the floor surface 3 in the vertical direction.

Reference numeral 6 denotes a main shaft, which is formed of a rectangular rigid member and has a length from the top 2c to the top 2 of the frame body 2.
The main pipe 5 supported by the support portion 4 penetrates through the center portion of the main pipe 5 and corresponds to the distance up to c. The main pipe 5 is rotatably supported in the vertical direction with the main pipe 5 serving as a fulcrum (rotation center point 8). ing.

Reference numeral 7 denotes a saddle for a child to sit on, which is fixed to both ends of the main shaft 6 and whose rear surface is located at the top 2c of the frame 2 and which are balanced with each other with the pivot point 8 of the main shaft 6 as a fulcrum. It is installed so that

A cushion portion 9 is formed of a synthetic resin member in a bellows shape, and both ends thereof have a back surface 7a of the saddle 7, respectively.
Is fixed between the upper surface 2c of the frame 2 and the top 2c of the frame 2 to regulate the vertical movement of the saddle 7, and the floor surface 3 in a compressed state.
It is for forming a gap 13 between the saddle 7 and the saddle 7. As shown in FIGS. 2 and 3, the cushion portion 9 has a collar portion 9a for fixing it to the back surface of the saddle 7 at one end of the bellows portion, and a U-shaped portion at the other end. A pedestal 9c to be fitted is formed on the top portion 2c of the frame body 2 formed in the above, and a flange portion 9b for fixing to the pedestal 9c is formed. As shown in FIG. 2, the bellows portion is compressed to a certain extent from the floor surface 3 in a compressed state.
3 is formed, and is formed to have a predetermined length in order to regulate the operating range of the saddle 7 in the vertical direction.

Reference numerals 10 and 11 denote screw holes formed in the collar portions 9a and 9b, respectively, for fixing the bellows portion to the back surface of the saddle 7 and the top portion 2c of the frame body 2 by screwing. Reference numeral 12 is an air hole provided through the pedestal 9c.
It is used to let air inside go in and out by compression and extension of the bellows portion, and it is provided at multiple locations.

Next, the operation will be described.

First, two children ride on the saddle 7 and gettin and battan. At this time, the distance that the saddle 7 moves up and down is restricted to a predetermined range by the expansion and contraction of the bellows portion of the cushion portion 9. Further, the dangerous area on the floor surface 3 is a range surrounded by the frame body 2 and can be visually recognized.

Therefore, as one of the saddles 7 descends and the bellows portion of the cushion portion 9 is compressed, the air in the bellows portion is exhausted to the outside from the air hole 12 provided through the pedestal 9c. Since the other cushion portion 9 is fixed to the back surface of the saddle 7 and the top portion 2c of the frame body 2,
The bellows portion is forcibly expanded as the saddle 7 rises, and air is introduced into the inside from the air hole 12.

When the bellows portion of the cushion portion 9 is sufficiently compressed, there is a gap 13 between the floor surface 3 and the back surface of the saddle 7, as shown in FIG. If it accidentally enters under the saddle 7, it will not be caught between the saddle 7 and the floor surface 3.

[0020]

According to the present invention, a pair of parallel portions which are in contact with the floor surface and are opposed to each other and extending from both ends of the parallel portions are inclined with respect to each other in the center line direction, and are connected in a U-shape at the top. A frame body formed in a closed loop by the inclined portion, a support portion attached to the parallel portion at a position perpendicularly facing the floor surface, and both ends supported by the support portion at the opposite position. A main shaft having a length from the top to the top, which is rotatably supported at the center of the main pipe, and which is provided so as to be horizontally balanced with the center as the fulcrum. And a saddle fixed to both ends of the main shaft and a bellows made of a synthetic resin member. The cushion part is provided with air holes while fixing both ends in the vertical direction to the back surface of the saddle and the top of the frame body. Tokara , In the compressed state of the bellows part of this cushion part, there is a vertical gap between the floor surface and the back surface of the saddle, so it is safe even if a child is caught near the bottom of the saddle. Since the lower end of the bellows is fixed to the frame, children will not be caught right under the saddle. Therefore, it can be safely used even in a room with infants.

Since both ends of the bellows portion of the cushion portion are fixed to the top of the frame and the back surface of the saddle, the range of compression and extension of the bellows is regulated, and the air holes provided through the pedestal are transparent. Since the vertical movement of the saddle is restricted by the movement of air into and out of the bellows, it is stable even if the child kicks the floor strongly with his foot and makes a vigorous vertical movement.

Further, the bellows portion of the cushion portion is formed of a synthetic resin member, and an air hole is formed through the pedestal so that the air inside can be quickly moved in and out by the compression and extension of the bellows portion. Since it is possible to use the cushioning property of the bellows itself, there is no direct impact of the floor surface on the saddle. In addition, the frame is formed by a pipe with a semicircular cross section cut in the lengthwise direction, and the lengthwise cross section side of this pipe is installed on the floor surface, so there is an appropriate friction resistance with the floor surface. Therefore, the seesaw does not move on the floor surface even under extreme use conditions and is stable.

[Brief description of drawings]

FIG. 1 is a perspective view of a chassis-1 according to the present invention.

FIG. 2 is a side view of a main part of FIG.

FIG. 3 is a development view of a cushion portion 9.

[Explanation of symbols]

 1 seesaw 2 frame 2a parallel part of frame 2 2b inclined part of frame 2 2c top of frame 2 3 floor 4 support part 5 main pipe 6 main shaft 7 saddle 9 cushion part 12 air hole 13 gap

Claims (2)

[Scope of utility model registration request] 1. A pair of parallel portions that are in contact with the floor and are opposed to each other, and inclined portions that extend from both ends of the parallel portions so as to incline toward each other in the center line direction and that are connected in a U-shape at the top portion. A frame formed in a closed loop by means of the above, a support portion mounted in the parallel portion so as to be vertically opposed to the floor surface, and a main pipe having both ends supported by the opposed support portions. And has a length from the top to the top of the frame body, is rotatably supported by the central portion of the main pipe, and is provided so as to be horizontally balanced about the central portion as a fulcrum. And a main shaft, saddles fixed to both ends of the main shaft, and a bellows made of a synthetic resin member. The upper and lower ends are fixed to the back surface of the saddle and the top of the frame, respectively, and air holes are formed. Cushion provided And a cushion portion, and a vertical gap is interposed between the floor surface and the back surface of the saddle in a compressed state of the bellows portion of the cushion portion. 2. The frame body according to claim 1 is formed by a pipe having a semicircular cross section cut in the length direction, and the cross section side in the length direction of the pipe is installed on the floor surface. Seesaw.