JP2002223902A - Chair or baby or infant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for a baby or infant, which allows the baby or infant to climb up/down the chair by him/herself easily and safely and of which the direction and the position before and behind can be changed easily and safely even in state in which the baby or infant sits on the seat part. SOLUTION: A rotary plate 8 of a seat part 3 is supported rotatably on a supporting table 5 of a leg part 2 having front/rear/right/left steps 7, and a rotating position holding means 17 is provided between this table 5 and the plate 8. A chair plate 9 constituting a seat part 3 is supported on the plate 8 in the state of being movable back and forth, and a front/back position holding means 37 is provided between the plate 8 and the plate 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a baby chair and, more particularly, to a baby chair which can easily perform a sitting operation with the protection of a baby or a parent.

[0002]

2. Description of the Related Art As a conventional infant chair 1A, for example, as shown in FIG.
A configuration is known in which a seat portion 3A integrally having an A and a backrest 12A and a leg portion 2A having a front stepping platform 7A are integrally assembled.

[0003]

By the way, there is a case where the infant is allowed to sit on the seat under his / her own supervision under the guardianship of the parent to raise the infant. When eating, first, the guardian H operates the infant chair 1A so that the dining table does not interfere with the sitting movement of the infant h.
Is placed in parallel with the dining table, and the infant h is allowed to stool by himself / herself via the platform 7A (see FIG. 26A). Thereafter, the parent H is seated on the seat 3A. The infant chair 1A is lifted and rotated together with the h while maintaining the horizontal state (see FIG. 26 (b)), and the infant h is opposed to the dining table (see FIG. 26 (c)). At this time, the dining table and the left and right side plates 10
If there is a gap S between the child A and the parent A, the guardian H again raises the baby chair 1A and moves it forward toward the dining table so that the baby h does not slip down from the gap S. Position adjustment was performed (FIG. 26D).
reference). In addition, when the infant h in the seated state lands on the floor from the seat 3A via the step 7A, the above procedure is performed in the reverse order.

As described above, in the conventional infant chair, the legs and the seat are integrally fixed, and the step is provided only in a surface area corresponding to the front of the seat. When performing the lifting operation related to the stool with its own protection or the protection of the guardian, depending on the situation, it is necessary for the guardian to change the orientation of the whole baby chair, and, furthermore, when the baby is seated on the seat, Parents need to lift the baby chair together with the baby while keeping it in a substantially horizontal position, and change its direction and position in the front-back direction. Was. Further, when the infant chair 1 is moved, there is a possibility that the floor surface, wall surface, and the like may be damaged.

[0005] As described above, the present invention solves the above-mentioned problems, and makes it easy to move up and down on a stool with the infant's own power or protection of a guardian, regardless of where the whole infant chair faces. Can be done safely, and
It is an object of the present invention to provide a baby chair that can easily and safely change its direction and front-rear position even when the baby is sitting on a seat.

[0006]

According to a first aspect of the present invention, there is provided an infant chair according to the present invention, comprising: a seat having an open front; and a leg having a step for assisting the infant to move up and down on the seat. A baby chair provided with the rotary unit, wherein the seat unit is rotatably supported with respect to the leg unit, and the seat unit is positioned and held at a predetermined position among a plurality of preset rotational positions. It is characterized by comprising means.

According to a fifth aspect of the present invention, there is provided an infant chair according to the first aspect of the present invention, wherein the seat portion is supported so as to be movable back and forth with respect to the leg portion, and the seat portion is provided with: There is provided a front-rear position holding means for positioning and holding at a predetermined position among a plurality of preset front-rear positions.

[0008] The infant chair is provided with a seat having an open front, and a leg having a stepping step for assisting the infant to move up and down on the seat with respect to the seat. Having a stool for stool, and a slide plate rotatably supported on the lower surface side of the stool,
The leg may include a support table that supports the slide plate movably back and forth, and may include a position holding unit capable of positioning and holding the seat plate relative to the support table in the rotation direction and the front-back direction. The seat may include left and right side plates provided on both left and right sides of the seat plate, and a backrest provided between the left and right side plates. Further, the leg portion may include a plurality of leg plate members extending in a vertical direction, the step board provided between the plurality of leg plate members, and the support stand provided on an upper end side of the plurality of leg plate members. .
Further, the support base may be formed in a box shape having at least an open front, and the slide plate may be supported inside the support base so as to be horizontally movable. Further, inside the box-shaped support base, a movement amount regulating means for regulating the horizontal movement amount of the slide plate can be provided. The slide plate may include a guide member that is rolled and guided on the inner wall surface side of the support base. The position holding means may include a positioning hole and a positioning pin that can be inserted into and removed from the positioning hole. Further, the seat portion has a holder for supporting the positioning pin so as to be able to move up and down, and the support base has a positioning hole for determining a rotational position of the seat portion with respect to the leg portion, and a positioning hole for the leg portion. And a positioning hole for determining the front-back position of the seat.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings by using embodiments. The chair for infants of the present embodiment is intended for infants from about six months after birth (when their neck and waist are firm) to about five years of age. In addition, in consideration of safety and design for infants, the main part of the chair for infants of the present embodiment is made of a wooden material using a lot of R surfaces, but is not limited thereto.
For example, it may be made of a synthetic resin, metal, or the like, or may be made of a combination of various materials. The materials, shapes and sizes of the members constituting the infant chair are not particularly limited, as long as the members fulfill the purpose and function of each member.

[0010] 1. First Example (1) Configuration of Chair for Infants (a) Legs and Seat As shown in FIGS. 1 and 2, a chair 1 for infants includes a leg 2 and a seat 3. The leg 2 includes a disk-shaped support base 5 and a plurality of (four) leg plate members 6 fixed to the lower surface of the support base 5 with screws or the like. Each of these leg plate materials 6
Between them, the front and rear and left and right steps 7 are fixed with screws or the like. Each of these steps 7 is located substantially at the center of the leg portion 2 in the height direction, and plays a role of assisting the infant in lifting and lowering the seat 3 with respect to the seat 3. Also,
The seat portion 3 includes a rotating plate 8 having substantially the same outer shape and size and arranged in an overlapping manner, and a seat 9 for seating (see FIG. 6). Left and right side plates 10 are fixed to the seat plate 9 with screws or the like. An armrest plate 11 for armrest is attached to each side plate 10 with a screw or the like, and an upper and lower backrest 12 is sandwiched and fixed between the respective side plates 10.

(B) Rotation Support Means As shown in FIGS. 2 and 3, a rotation support means 14 is provided between the support table 5 and the rotating plate 8. The rotation support means 14 includes a pair of rotation fittings 15 which incorporate a bearing and a shaft (not shown) and are rotatably supported with each other. One of the rotating brackets 15 is fixed to the upper surface of the support base 5 with screws or the like, and the other rotating bracket 15 is fixed.
Is fixed to the lower surface of the rotating plate 8 via screws or the like.
Therefore, in the infant chair 1 in the assembled state, the legs 2
On the other hand, the seat portion 3 is rotatably supported while maintaining the horizontal state. In the above embodiment, the rotating bracket 1 is used.
5 is made of metal and has a substantially square shape, but is not limited thereto, and may be made of, for example, a synthetic resin and formed in a disk shape.

(C) Rotational position holding means As shown in FIGS. 2 and 3, a rotational position holding means 17 is provided between the support table 5 and the rotating plate 8. The rotation position holding means 17 includes a positioning hole 18 and a positioning pin 19 which can be inserted into and removed from the positioning hole 18. A plurality (eight) of the positioning holes 18 are provided on the upper surface of the support base 5 at predetermined intervals (45-degree intervals) in the circumferential direction. The positioning pin 19 is supported by a positioning tool 21 mounted on a mounting wall 20 at the rear of the rotary plate 8 so as to be vertically movable. The positioning tool 21 has a built-in spring (not shown) that constantly biases the positioning pin 19 upward in the case.

As shown in FIG. 4 (a), the positioning pin 19 can be inserted into the positioning hole 18 by pressing the fingertip operating portion 22 provided at the upper end thereof downward. Is held. When the positioning pin 19 is inserted into the positioning hole 18, the rotating plate 8 of the seat 3 cannot be rotated with respect to the leg 2, that is, the seat 3 is set in advance with respect to the leg 2. Positioning and holding are performed at a plurality of (eight) rotational positions Q1 to Q8 (see FIGS. 2 and 3). Also, the positioning pin 19
By pressing the fingertip operation button 23 provided on the surface of the storage case while being held at the protruding position P1, the finger is moved upward as shown in FIG. It is held at the extracted immersion position P2. When the positioning pin 19 escapes from the positioning hole 18 in this manner, the rotating plate 8 of the seat 3 can be rotated with respect to the leg 2.

As shown in FIG. 5, it is preferable to form a guide groove 25 which is continuous with each positioning hole 18 and extends in the circumferential direction on the upper surface of the support base 5 of the leg 2. With this configuration, the rotary plate 8 is rotated with respect to the leg portion 2, and the positioning pin 19 at the immersion position P 2 is rotated during the rotation.
Can be moved downward by the operation of the fingertip operation unit 22, and the tip of the pin 19 can be smoothly inserted into the positioning hole 18 while being guided by the guide groove 25. In the present embodiment, the positioning holes 18 are provided on the support base 5 side and the positioning pins 19 are provided on the rotary plate 8 side.
The positioning pin 19 may be provided on the side, and the positioning hole 18 may be provided on the rotating plate 8 side.

(D) Slide Support Means As shown in FIG. 6, a slide support means 27 is provided between the rotating plate 8 and the stool 9. The slide support means 27 is provided with a slide groove 28 (slide portion) formed at a lower portion of the facing surface of each side plate 10 integrated with the seat plate 9.
And right and left side edges 8a and 8b (slide portions) of the rotary plate 8 supported to be movable back and forth with respect to the slide grooves 28 (see FIG. 3). Therefore, in the seat portion 3 in the assembled state, the seat 9 is supported so as to be able to move back and forth while maintaining the horizontal state with respect to the rotating plate 8. In this embodiment, the slide grooves 28 are formed on the left and right side plates 10, but may be formed directly on the seat plate 9.

Further, between the rotating plate 8 and the seat 9, there is provided a fore-and-aft movement amount regulating means 30. The forward / backward movement restricting means 30 includes a forward movement restricting portion 31 for restricting the forward movement of the stool 9 and a backward movement restricting portion 32 for restricting the backward movement of the stool. The front movement restricting portion 31 includes an engaging piece 33 (engaging portion) provided on the lower surface of the stool 9 and a restricting piece 34 (restricting portion) provided on the upper surface of the rotating plate 8. R1 (see FIG. 8 (d))
The two pieces are set so as to engage with each other. The rearward movement restricting portion 32 includes a rear end portion 9a (an engaging portion) of the stool 9 and a mounting wall 20 (a restricting portion) of the rotating plate 8, and the stool 9 is positioned at the rear position R2 (FIG. a)), the rear end 9a and the mounting wall 20 are set so as to engage with each other. A plurality (five) of guide balls 35 (guide members) are supported on the upper surface of the rotating plate 8 so as to freely roll by 360 degrees.
With this guide ball 35, the seat 9
Will be guided more smoothly in the front-rear direction. In the above embodiment, the guide ball 3 is used as the guide member.
5, a guide roller 350 rotatably supported as a guide member may be used as shown in FIG. Further, a so-called slide rail in which a plurality of guide rollers are rotatably supported by a long rail member may be provided between the rotating plate 8 and the seat plate 9.

(E) Front / rear position holding means As shown in FIG. 6, a front / rear position holding means 37 is provided between the rotating plate 8 and the seat 9. The front / rear position holding means 37 includes a positioning hole 38 and the positioning hole 38.
And a positioning pin 39 which can be inserted into and removed from. A plurality (two) of the positioning holes 38 are provided on the upper surface of the rotating plate 8 at predetermined intervals (about 6 to 8 cm) in the front-rear direction. The positioning pins 39 are vertically movably supported by holders 40 attached to the lower backrest 12 and through holes 41 formed in the seat 9.

As shown in FIG. 8, the positioning pin 39 is inserted into the positioning hole 38 by operating the operation grip portion 42 provided at the upper end thereof downward (FIG. 8A). ) (d)). In this inserted state, the seat plate 9 cannot be moved back and forth with respect to the rotating plate 8, that is, the seat portion 3 is positioned at the preset front position R1 or rear position R2 with respect to the leg portion 2. Will be retained. The positioning pin 39 is released from the positioning hole 38 by operating the operation grip part 42 upward from the inserted state (FIG. 8).
(Refer to (b) and (c)). In this released state, the seat 9 can be moved back and forth with respect to the rotating plate 8. In this embodiment, the positioning holes 38 are provided on the rotating plate 8 side and the positioning pins 39 are provided on the seat 9, but the positioning pins 39 are provided on the rotating plate 8, and the seating pins 9 are provided on the seat 9. The positioning holes 38 may be provided.

(F) Various Accessory Parts, etc. As shown in FIGS. 9 and 10, the infant chair 1 of the present embodiment has a table 45 as an accessory part. The left and right armrest plates 11 of the seat portion 3 are formed with a substantially L-shaped guide groove 46 that is open at the top and a positioning hole 47. The left and right mounting plates 4 are provided on the lower surface of the table 45.
8 is fixed, and a guide pin 49 that is movably supported in the guide groove 46 is implanted in each mounting plate 48. A positioning tool 5 having a positioning pin 51 which can be inserted into and removed from the positioning hole 47 on the lower surface of the table 45.
0 is attached. The positioning tool 50 has substantially the same configuration as that of the positioning tool 21, and the positioning pin 51 is displaced and held between the protruding position and the immersing position by operating the fingertip operating unit 61 and the fingertip operating button 62. It has become. Therefore, by the engagement and disengagement of the guide pin 49 and the guide groove 46 and the fingertip operation of the positioning tool 50,
The table 45 can be easily attached to and detached from the armrest plate 11 of the seat 3. Further, similarly to the table 45, the seat belt 53 is provided detachably with respect to the seat plate 9, and can be used as needed.

The mechanism for supporting the table 45 with respect to the armrest plate 11 in the above embodiment may be modified as appropriate. That is, as shown in FIG. 11, slide grooves 460 extending in the front-rear direction are formed in the left and right armrest plates 11 of the seat portion 3. Also, on the left and right mounting plates 48 on the lower surface of the table 45,
A slide pin 490 supported to be movable back and forth with respect to the slide groove 460 is implanted. Therefore, the engagement and disengagement of the slide pin 490 and the slide groove 460 and the positioning tool 5
The table 45 can be attached to and detached from the armrest plate 11 of the seat section 3 by a zero fingertip operation. Note that a storage space for the table 45 may be set between the leg plate members 6 of the leg 2 and the table 45 may be stored in this storage space when the table 45 is not used.

As shown in FIGS. 12 and 13, the infant chair 1 of the present embodiment can be used as a step, a step chair, a flower stand, etc. when the infant grows and does not use the chair 1. Has become. That is, the screws 55 (see FIG. 2) are removed from the seat portion 3 in the assembled state, and the left and right side plates 10 and the backrest 12 are removed from the rotating plate 8. At this time, the positioning pins 39 constituting the front / rear position holding means 37 are also removed together with the backrest 12, so that the seat 9 can be moved back and forth with respect to the rotating plate 8.
Therefore, the rotating plate 8 and the seat plate 9 are integrally fixed with the screw 59. It should be noted that the rotating plate 8 may be used in a state where the positioning pin 19 is inserted into the positioning hole 18 by operating the rotation position holder 17 so that the rotating plate 8 is not rotatable with respect to the support base 5 of the leg 2. desirable. The screw 59 in the above embodiment is stopped, and as shown in FIG. 14, a rectangular slide prevention member 56 is prepared.
May be fitted into a fitting groove 57 formed on the side of the rotating plate 8, and the stool 9 and the slide prevention member 56 may be screwed to integrally fix the rotating plate 8 and the stool 9. .

(2) Operation of using the chair for infants Now, as shown in FIG. 8A, the seat portion 3 of the chair 1 for infants
Are positioning pins 19 for positioning holes 18 and 38, respectively.
By inserting 39, it is assumed that it is positioned and held at a predetermined rotation position Q1 and a rear position R2. In this state, under the guardianship of the guardian, the infant sits on the seat 3 via the step 7 with his or her own protection. Then, with the infant sitting on the seat 3, the guardian pushes the fingertip operation button 23 to pull out the positioning pin 19 from the positioning hole 18, as shown in FIG.
Is rotated at a desired rotation position Q (for example, a position facing the table), and as shown in FIG. 4A, the fingertip operation unit 22 is pressed to insert the positioning pin 19 into the positioning hole 18. The seat portion 3 is positioned and held at the rotation position Q.

Thereafter, when position adjustment in the front-rear direction is performed (for example, when there is a gap between the table and the seat, and there is a possibility that the baby may fall from the gap), first, FIG.
As shown in FIG. 8B, the operation holding portion 42 is pulled up, the positioning pin 39 is pulled out from the positioning hole 38, and then, as shown in FIG.
As shown in FIG. 8D, the engaging piece 33 of the seat plate 9 engages with the restricting piece 34 of the rotating plate 8 and stops at the front position R1. Then, the operation grip portion 42 is operated downward to move the positioning pin 38.
Is inserted into the positioning holes 39 to position and hold the seat 9 at the front position R1 with respect to the rotating plate 8. When the infant in the seated state lands on the floor from the seat 3 via the step 7, the above procedure is reversed.

(3) Effects of the First Embodiment In such an infant chair 1, the rotation support means 14 and the rotation position holding means 17 are provided between the leg 2 and the seat 3, and the leg 2 Has a step 7 covering the entire front, back, left and right, so that the guardian can position the seat portion 3 at the desired rotation position Q1 to Q8. It is possible to perform an ascending / descending operation to the seat unit 3 with protection of a parent. Further, the seat portion 3 can be firmly positioned and held with respect to the leg portion 2 at each of the rotation positions Q1 to Q8 by the rotation position holding means 17, so that the infant can be safely moved up and down. Further, when changing the direction of the baby sitting on the seat 3, it is not necessary for the guardian to lift and rotate the whole chair together with the baby as in the related art.
Since only the child needs to be rotated, the guardian can easily change the direction of the baby, and since the rotation of the seat portion 3 is kept horizontal, it is possible to perform a rotation operation that is safe for the baby. it can.

In this embodiment, the rotation position holding means 1
7, a protruding position P1 that can be inserted into the positioning hole 18 by a fingertip operation and an immersion position P that comes off the positioning hole 18
Since the positioning device 21 is provided with a displacement tool 21 capable of displacing and maintaining the position between the two, the positioning of the rotation positions Q1 to Q8 of the seat 3 with respect to the leg 2 and the release thereof can be performed with a simple fingertip operation. Further, it is possible to position the seat 3 by operating the positioning tool 21 with the other hand while rotating the seat 3 with one hand. Further, in the present embodiment, a positioning tool 21 is disposed on the rear surface of the mounting wall 20 at the rear end of the rotating plate 8, that is, the backrest 12 in the seat 3.
Since the positioning tool 21 is disposed at the back side of the
Inadvertently operating the positioning tool 21 by a baby in a sitting state can be prevented.

In this embodiment, since the slide support means 27 and the front / rear position holding means 37 are provided between the rotary plate 8 and the seat plate 9 in the seat section 3, the position of the seat section 3 in the front / rear direction is adjusted. Is performed, the parent does not need to lift and move the entire chair together with the baby, as in the related art, and only the seat 3 needs to be moved. Therefore, the parent can easily adjust the position of the seat 3. Can be performed and its seat part 3
Since the sliding operation is kept horizontal, the sliding operation safe for the infant can be performed.

In this embodiment, the rotating plate 8 and the seat plate 9
, A forward movement restricting portion 31 and a rearward movement restricting portion 32 are provided as the front and rear movement amount restricting means 30.
The seat plate 9 does not slide more than necessary,
It is possible to perform a sliding operation that is safe for infants. The position restricted by each of the movement restriction parts 31 and 32 is as follows.
Since the setting is made in accordance with the front and rear positions R1 and R2 of the stool 9, the positioning pins 39 can be easily inserted into the positioning holes 38 when the stool 9 is positioned.

It should be noted that the present invention is not limited to the above embodiment, but may be variously modified within the scope of the present invention according to the purpose and application. That is, in the present embodiment, in order to realize a stable rotation operation and sliding operation, the rotating plate 8 is rotatably supported on the support base 5 of the leg 2, and the rotating plate 8 is supported on the rotating plate 8. Is slidably supported, but the slide plate is slidably supported on the support base 5 of the leg 2 and the seat plate 9 is supported on the slide plate.
May be rotatably supported. Further, in this embodiment, each of the position holding means 17, 37 is connected to the positioning hole 18,
38 and the positioning pins 19 and 39, but the present invention is not limited to this. For example, it may be configured by a clamp tool or the like that clamps both members to be positioned. The rotation position can be arbitrarily selected.

Further, in the present embodiment, the seat portion 3 is set so as to be positioned and held at the eight rotational positions Q1 to Q8. However, the present invention is not limited to this. You may comprise so that positioning may be hold | maintained at two rotation positions before and after. Further, in this embodiment, the seat portion is rotatably supported by 360 degrees. However, the present invention is not limited to this. For example, the seat portion may be rotatably supported within an angle range of 180 degrees. Further, in the present embodiment, four steps, front, rear, left and right, are provided, but the present invention is not limited thereto.
For example, a single ring-shaped or arc-shaped step may be used. In short, even if the seat portion 3 is located at any of a plurality of rotation positions, the baby can be assisted by himself or with the protection of a guardian. The step 7 may be of any shape, size, number, etc., as long as it can perform the elevating operation relating to the stool.

2. 2. Second Embodiment (1) Configuration of Infant Chair (a) Legs and Seat As shown in FIGS. 15 to 17, the infant chair 101 includes a leg 102 and a seat 103. This leg 10
Reference numeral 2 includes a support base 105 having a substantially rectangular planar shape, and a plurality (four) of leg plate members 106 which are fixed to the lower surface of the support base 105 with screws or the like and extend slightly inclined in the vertical direction. . The front and rear and left and right steps 107 are fixed with screws or the like between the leg members 106. Each of these steps 1
Reference numeral 07 is located substantially at the center of the leg 102 in the height direction, and plays a role of assisting the infant in lifting and lowering the seat 103 with respect to the seat.

The support table 105 has a flat bottom plate 160.
(See FIG. 19), and left and right and rear vertical plates 161a, 161 attached to the left and right edge and rear edge of the bottom plate 160.
61b, 161c and these vertical plates 161a, 161
b, 161c are provided with a top plate 162 having a substantially concave planar shape attached to the upper edge side, and are formed in a box shape with a part of the front and upper parts opened. The top plate 162 has a plurality (3) extending vertically on three sides constituting the top plate 162.
Long) positioning holes 118a, 118b, 118
c is formed. In addition, the bottom plate 160 is provided with a predetermined gap (6) in the horizontal direction with the positioning hole 118b on the rear side.
〜8 cm) to form a positioning hole 138 (see FIGS. 18 and 19). The bottom plate 160 may have an opening at the center for weight reduction.

The seat 103 is provided with a stool 1 for stool.
09 and a slide plate 108 having a substantially rectangular planar shape. Left and right side plates 110 are fixed to the seat plate 109 with screws or the like. Armrests 111 for armrests are attached to these side plates 110 with screws or the like, and upper and lower backrests 112 are sandwiched and fixed between the side plates 110. The slide plate 108 is supported by a slide groove, which will be described later, formed on the support base 105 side so as to be slidable in the horizontal direction. The slide plate 108 has the positioning holes 118a, 118b,
A positioning hole 118d having the same shape as 118c is formed.

(B) Rotation support means As shown in FIGS. 16 and 17, a rotation support means 114 is provided between the seat 109 and the slide plate 108. The rotation support means 114 includes a pair of rotation fittings 115 which incorporate a bearing and a shaft (not shown) and are rotatably supported with each other. One rotating bracket 115 is fixed to the upper surface of the slide plate 108 via a screw or the like, and the other rotating bracket 115 is
9 is fixed to the lower surface of the device 9 via screws or the like. Therefore, in the seat portion 103 in the assembled state, the seat plate 109 is rotatably supported with respect to the slide plate 108 while maintaining the horizontal state. In the above embodiment, the rotating fitting 115 is made of metal and has a substantially square shape. However, the present invention is not limited to this. For example, the rotating fitting 115 may be made of a synthetic resin and formed in a disk shape.

(C) Slide Support Means As shown in FIG. 18, a slide support means 127 is provided between the support table 105 and the slide plate 108. The slide support means 127 is provided on the support base 10.
5 and slide grooves 128 along the horizontal direction formed on the mutually facing surfaces of the left and right vertical plates 161a and 161b.
(Slide portion: only one side is shown), and right and left side edges (slide portion) of a slide plate 108 supported to be movable back and forth with respect to the slide groove 128. Therefore, in the infant chair 101 in the assembled state, the seat portion 103 is supported so as to be horizontally movable with respect to the leg portion 102 while maintaining the horizontal state.

Further, as shown in FIG.
08 and the support table 105,
30 are provided. This forward / backward movement amount regulating means 130
Is composed of a forward movement amount regulating portion 131 that regulates the forward movement of the slide plate 108 and a rearward movement regulation portion 132 that regulates the backward movement of the slide plate 108. The front movement restricting portion 131 includes a front guide roller 167 (engaging portion) among a plurality of (four) guide rollers 167 provided on the lower surface of the slide plate 108, and a bottom plate 160 of the support base 105.
, And the two members are set to engage with each other when the slide plate 108 is at the front position R1 (see FIG. 19D). Further, the rearward movement restricting portion 132 is provided at the rear end portion 108a of the slide plate 108.
(Engagement part) and a mounting wall 120 (restriction part) provided on the support base, and the slide plate is located at the rear position R2 (FIG. 19).
(See (a)), the rear end 108a and the mounting wall 120 are set so as to engage with each other. Also, the slide plate 10
The guide plate 167 (guide member) provided on the lower surface side of the slide plate 108 supports the slide plate 108
Will be guided more smoothly in the front-rear direction. In the above embodiment, the guide roller 1 is used as the guide member.
Although 67 has been exemplified, the invention is not limited to this, and a guide ball rotatably supported by 360 degrees may be used as the guide member. Further, a so-called slide rail in which a plurality of guide rollers are rotatably supported by a long rail member may be provided between the slide plate 108 and the support table 105.

(D) Position holding means As shown in FIGS.
Between them, a position holding means 170 is provided. The position holding means 170 is provided with the positioning holes 118a,
118b, 118c, 118d, and positioning pins 171 that can be inserted into and removed from the respective positioning holes 118a, 118b, 118c, 118d. The positioning pin 171 is provided with a holder 172 attached to the lower backrest 112 and a through hole 1 formed in the seat plate 109.
It is supported movably up and down by 73. A substantially spherical operation section 174 operable by a guardian or the like is attached to the upper end side of the positioning pin 171. still,
The positioning pin 171 can be positioned and held at an appropriate position with respect to the holder 172 by frictional resistance between the two members.

Then, the positioning pin 171 is provided as shown in FIG.
As shown in FIG. 9, by operating the operation portion 174 downward, the positioning hole 118b (or 118a,
118c, 118d) (FIG. 19)
(a)). In this inserted state, the seat plate 109 of the seat portion 103 cannot rotate with respect to the support base 105 of the leg portion 102 and cannot move back and forth.
A plurality of (four) rotational positions Q <b> 1 to Q <b> 4 (see FIGS. 16 and 17) are set in advance with respect to the leg 102.
Is held at any one of the rotational positions. The positioning pin 171 is moved from the inserted state to the operation unit 1.
By lifting the 74 upward, a release state (see FIG. 19B) is drawn out of the positioning holes 118b (or 118a, 118c, 118d). The seat 103 is rotatable and movable back and forth.

The positioning pins 171 are particularly
After the seat 103 is inserted into the positioning hole 118b and the seat 103 is positioned and held at the preset rear position R2 with respect to the leg 102 (see FIG. 19A), the positioning pin 1
71 is removed from the positioning hole 118b, and the leg 10
19, the seat 103 is moved forward, and the positioning pin 171 is inserted into the positioning hole 138 to position and hold the seat 103 at the preset front position R1 (FIG. 19D). Reference). In this embodiment, the support table 105 and the slide plate 1
08 positioning holes 118a, 118b, 118c, 1
18d and the positioning pins 171 are provided on the side of the stool 109, for example, the positioning pins 171 are provided on the side of the support 105, and the positioning holes 11 are provided on the side of the stool 109.
8a, 118b, 118c, and 118d may be provided.

(F) Various accessory parts, etc. As shown in FIGS.
01 has a table 145 as an accessory part. The table 145 includes a table plate 147 and left and right attachment plates 148 having a substantially L shape and fixed to both sides of the lower surface of the table plate 147. This table board 1
47 and the left and right mounting plates 148,
3 is provided with a concave locking portion 149 which is in contact with the distal end sides of the left and right armrest plates 111 and which can be engaged by sandwiching the armrest plate 111 from above and below. Further, fixing screws 150 for fixing are provided on the distal ends of the left and right mounting plates 148. Therefore, the engagement / disengagement of the locking portion 149 of the table 145 with respect to the armrest plate 111 and the attachment / detachment of the attachment screw 150 allow the armrest plate 111 of the seat portion 103 to be removed.
The table 145 can be easily attached to and detached from. Further, similarly to the table 145, the seat belt 153 is provided detachably with respect to the stool 109 so that it can be used as needed. still,
A storage space for the table 145 may be set between the leg plate members 106 of the leg portion 102, and when the table 145 is not used, the table 145 may be stored in this storage space.

As shown in FIGS. 23 and 24, the chair 101 for an infant according to the present embodiment grows as an infant grows.
When you no longer use, you can use it as a springboard, step chair, flower stand, etc. That is, in the seat portion 103 in the assembled state, the screws 155
(See FIG. 16), and the left and right side plates 110, the armrest plates 111 and the backrest 112 are removed from the seat plate 109. At this time, the position holding means 170 together with the backrest 112 are used.
The positioning pin 171 and the like, which constitute the above, are also removed, and the seat 109 can be moved back and forth with respect to the support table 105 and can rotate freely. Therefore, the support 105 and the stool 109
Are integrally fixed with screws 159.

(2) Operation of using the chair for infants As shown in FIG. 16, the seat 103 of the chair 101 for infants is provided with the positioning pins 1 for the positioning holes 118c.
It is assumed that the positioning of the lens 71 is maintained at a predetermined rotation position Q1 by inserting the 71. In this state, under the guardianship of the guardian, the infant sits on the seat 103 via the step 7 with his or her own protection. And the seat 10
In the state where the infant is seated on 3, as shown in FIG. 19 (b), the guardian pulls up the positioning pin 171, pulls it out of the positioning hole 118 c, rotates the seat 103,
For example, as shown in FIG. 17, the rotational position Q2 (for example,
At a position facing the table), the positioning pin 171 is pushed down and inserted into the positioning hole 118b, and the seat portion 103 is positioned and held at the rotation position Q2.

Thereafter, when the position is adjusted in the front-rear direction (for example, when there is a gap between the table and the seat, and there is a possibility that the baby may fall from the gap), first, FIG.
As shown in FIG. 9 (b), the positioning pin 171 is pulled out from the positioning hole 118b, and then, as shown in FIG.
As shown in FIG. 19, when the stool 109 is moved forward together with the infant, as shown in FIG. 19D, the regulating piece 134 of the support base 105 and the guide roller 167 of the slide plate 108 are engaged, and Stop at R1. Then, the positioning pin 171 is pushed down and inserted into the positioning hole 138 to position and hold the seat 109 at the front position R1 with respect to the support base 108. When the infant in the seated state lands on the floor from the seat 103 via the step 107, the above procedure is reversed.

(3) Effects of the Second Embodiment In such an infant chair 101, the rotation support means 114 is provided between the seat plate 109 and the slide plate 108 constituting the seat portion 103, and the leg portion 102 is formed. Support table 10
5 and the slide plate 108 between the slide support means 127
And the foot 102 is provided with a step 107 covering the entire front, rear, left, and right directions, so that the guardian can position the seat 103 at the desired rotation positions Q1 to Q4.
In any direction of 0 degree, the infant can move up and down to the seat 103 with his or her protection.
In addition, when changing the direction of the baby sitting on the seat portion 103 or performing position adjustment in the front-rear direction, the parent lifts the whole chair together with the baby and rotates or moves the child back and forth as in the related art. It is not necessary to use
Since only the child needs to be rotated or moved back and forth, the guardian can easily change the direction of the baby and adjust the front and rear position. Further, since the rotation and the front-rear movement of the seat portion 103 are kept horizontal, it is possible to perform a rotation operation or a front-back sliding operation that is safe for the infant.

Further, in the second embodiment, the position of the seat 10 with respect to the leg 102 is
3 has a function of positioning and holding in the rotation direction and a function of holding and positioning in the front-rear direction, as compared with the first embodiment in which the rotation position holding means 17 and the front / rear position holding means 37 are separately provided. It can be manufactured with a simple configuration at a low manufacturing cost. Further, the position holding means 170 can firmly position and hold the seat portion 103 with respect to the leg portion 102 at each of the rotation positions Q1 to Q4, and can safely move the infant up and down. In this embodiment, the position holding unit 170 is
The holding pin 172 includes a holding tool 172 and a positioning pin 171 supported by the holding tool 172 so as to be vertically movable.
The positioning holes 118a, 118b, 118c, 118d, 38
The positioning and release of the rotational positions Q1 to Q4 and the front and rear positions R1 and R2 of the seat portion 103 with respect to the leg portion 102 can be performed with a simple operation. It is also possible to operate the positioning pin 171 with the other hand while rotating or moving the portion 103 back and forth to position the seat portion 103. Further, in this embodiment, the position holding means 170 is connected to the seat 10.
Because it was arranged at the back side of the backrest 112 in 3,
It is possible to prevent a baby sitting on the seat 103 from operating the positioning tool 121 by mistake.

Further, in this embodiment, the forward movement restricting portion 131 and the rearward movement restricting portion 132 are provided as the front and rear movement amount restricting means 130 between the supporting stand 105 and the slide plate 108. Thus, the slide operation can be performed safely for the infant without the slide plate 108 sliding more than necessary. In addition, since the position regulated by each of the movement regulating portions 131 and 132 is set corresponding to the front and rear positions R1 and R2 of the slide 108, the positioning of the slide plate 109 with respect to the positioning holes 38 and 118b is performed. The insertion operation of the pin 171 can be easily performed. Further, in this embodiment, the slide plate 108 is stored and supported inside the box-shaped support base 105 via a slide support means 127 so as to be horizontally movable.
Further, the longitudinal movement amount regulating means 130 is provided inside the support table 105.
Is provided, it is possible to make the appearance better than that of the first embodiment.

[0046]

According to the first or second aspect of the present invention, it is possible to easily change the orientation of only the seat with respect to the legs, and to safely perform the ascent / descent operation of the infant in the changed orientation. The direction of the seat portion can be easily changed even when the infant is seated, and can be safely changed for the infant. Further, when the direction of the seat portion is changed, the floor surface or the like is not damaged. According to the third or fourth aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to easily perform the operation of positioning and holding the rotational position of the seat relative to the leg. According to the invention described in claim 5, claim 1 is provided.
In addition to the effects of the described invention, the front and rear positions of the seat portion can be easily and safely changed for the baby even when the baby is sitting. Further, when the front and rear positions of the seat portion are changed, the floor surface or the like is not damaged. According to the invention of claims 6 to 8, in addition to the effect of the invention of claim 5, it is possible to easily perform the positioning and holding operation of the front and rear positions of the seat with respect to the legs. According to the ninth aspect, in addition to the effects of the first to eighth aspects, a table can be attached when necessary.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an infant chair according to a first embodiment.

FIG. 2 is an explanatory diagram for explaining a rotation support unit and a rotation position holding unit.

FIG. 3 is an explanatory diagram for explaining a rotation support unit and a rotation position holding unit.

FIGS. 4A and 4B are explanatory diagrams for explaining a rotational position holding unit, wherein FIG. 4A shows a positioning holding state, and FIG. 4B shows a positioning release state.

FIG. 5 is an explanatory diagram for describing a modified example of a rotation position holding unit.

FIG. 6 is an explanatory diagram for explaining a slide support unit and a front / rear position holding unit.

FIG. 7 is an explanatory diagram for describing a modified example of the slide support means.

FIGS. 8A and 8B are explanatory diagrams for explaining a front / rear position holding unit, wherein FIG. 8A shows a positioning / holding state at a rear position, and FIG.
(c) shows the positioning release state, and (d) shows the positioning holding state at the front position.

FIG. 9 is an explanatory diagram for explaining another accessory part.

FIG. 10 is an enlarged view of a main part of FIG. 9;

FIG. 11 is an explanatory diagram for describing a modified example of a table support mode.

FIG. 12 is an explanatory diagram for explaining a usage pattern of an infant chair as an after use.

FIG. 13 is an enlarged view of a main part of FIG.

FIG. 14 is an explanatory diagram for describing a modified example of a fixed form of the rotating plate and the seat plate.

FIG. 15 is an overall perspective view of a baby chair according to a second embodiment.

FIG. 16 is an explanatory diagram for explaining a rotation support unit and a position holding unit.

FIG. 17 is an explanatory diagram for explaining a rotation support unit and a position holding unit.

FIG. 18 is an explanatory diagram for explaining a slide support unit and a position holding unit.

FIGS. 19A and 19B are explanatory diagrams for explaining the operation of the position holding means, and FIG. 19A shows a positioning and holding state at a rear position;
(b) and (c) show the positioning release state, and (d) shows the positioning holding state at the front position.

FIG. 20 is an explanatory diagram for explaining another accessory part (table).

FIG. 21 is an enlarged view of a main part of FIG. 20;

FIG. 22 is an explanatory diagram for explaining a table mounting operation.

FIG. 23 is an explanatory diagram for explaining a usage pattern of an infant chair as after use.

FIG. 24 is an enlarged view of a main part of FIG. 23.

FIG. 25 is an overall perspective view of a conventional infant chair.

FIG. 26 is an explanatory diagram for explaining the operation of a conventional infant chair.

[Explanation of symbols]

1,101; chair for infants, 2,102; legs, 3,1
03; Seat, 7, 107; Step, 8, 108; Rotating plate, 9, 109; Stool plate, 10; Left and right side plates, 12; Backrest, 17; Rotational position holding means, 18;
19; positioning pin, 25; guide groove, 30; front and rear movement amount regulating means, 37; front and rear position holding means, 38; positioning hole, 39; positioning pin, 45, 145; table, Q
1 to Q8, Q1 to Q4; rotational position, R1, R2;

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Miyoko Kunii 3-805, Motoueda, Tenpaku-ku, Nagoya F-term (reference) 3B091 EA03 EA04 EB02 EC02 3B095 AA10 AB01 AB06 AC03 AC10 CA10

Claims (9)

[Claims] 1. An infant chair comprising: a seat part having an open front; and a leg part having a stepping board for assisting an infant to move up and down on the seat part, wherein the seat part is attached to the leg part. A baby chair comprising: a rotatable support means for rotatably supporting the seat and a positioning and holding means for positioning and holding the seat at a predetermined position among a plurality of preset rotational positions. 2. The infant chair according to claim 1, wherein the step is provided so that the infant can perform an ascending / descending operation related to sitting on the seat in any of the plurality of rotation positions. 3. The infant chair according to claim 1, wherein the rotation position holding means includes a positioning hole and a positioning pin that can be inserted into and removed from the positioning hole. 4. The infant chair according to claim 3, wherein the rotation position holding means includes a circumferential guide groove for guiding insertion of the positioning pin into the positioning hole. 5. A front / rear position holding means for supporting the seat portion so as to be movable back and forth with respect to the leg portion, and positioning and holding the seat portion at a predetermined position among a plurality of preset front and rear positions. The chair for infants according to claim 1, which is provided. 6. The infant chair according to claim 5, wherein said front / rear position holding means comprises a positioning hole and a positioning pin which can be inserted into and removed from the positioning hole. 7. The infant chair according to claim 5, further comprising a movement amount restricting means for restricting a forward and backward movement amount of the seat portion with respect to the leg portion. 8. The seat portion includes a rotary plate rotatably supported by the leg portion, a front and rear side rotatably supported on an upper surface of the rotary plate, and left and right side plates and a backrest provided integrally. 6. The seat according to claim 5, further comprising a seat plate, wherein the rotation position holding means is provided between the leg portion and the rotary plate, and the front / rear position holding means is provided between the rotary plate and the seat plate. Infant chair. 9. The infant chair according to claim 1, further comprising a table detachably provided on the seat portion.