JPS6176111A - Infant chair - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a child care chair, and in particular, to
Section 4 Concerning a childcare chair that can be used.

BACKGROUND OF THE INVENTION In general, many child care chairs are equipped with a dedicated table. This table is used as a dining table when feeding infants, or as a stand for toys. By the way, the position of the table of the conventional child care chair could not be adjusted. Therefore, depending on the size of the infant, or as the infant grows, the position of the table and the position of the infant sitting in the childcare chair may move too fast or approach each other, making it difficult for the infant to play or eat comfortably. There were times when I was unable to do so. Furthermore, even if the childcare chair has an adjustable table position, it is very troublesome to operate it. That is, it was necessary to first remove the fastener, move the table, and then insert the fastener again to fix the table. Furthermore, conventional child care chairs have the disadvantage that when a mother or the like puts an infant on or takes the infant out of the child care chair, the table gets in the way and makes it difficult to take the child in and out.

In view of the above-mentioned drawbacks of the conventional technology, a child care chair has been developed by the same applicant as the present application, in which the position of the table can be adjusted back and forth and the table can be tilted forward at its front end. Application, patent application 1986-1319
9 (Japanese Patent Publication No. 54-16269).

FIG. 10 shows a perspective view of a childcare chair disclosed in Japanese Patent Application No. 53-13199. Illustrated nursery chair 1
is a support frame 2 placed on the floor, and a j
A backrest plate 3 that is connected together, a seat plate 4 supported by the support frame 2, a night cover 5 attached to the support frame 2 on both sides of the seat plate 4, and a side cover 5 disposed above the front part of the side cover 5. It is equipped with a table stand 6. table stand 6
Fixed support rods 7 extending downward are fixedly attached to the rear portions of both measuring sections. The lower part of this fixed support rod 7 is
It is held between two clamping tools 8a and 8b. Further, a long hole 9 and a tip hole 10 are formed in the side wall of the side cover 5.

FIG. 11 shows a configuration related to the clamping tools 8a and 8b shown in FIG. 10.

A male fastener 11 and a heel fastener 12 are arranged in relation to the clamps 8a and 8b. The male fastener 11 has a cylindrical head 13 located inside the side cover 5 and a cylindrical head 1
3 is integrally formed in the center of the sliding rotating portion 14 and is sized to be able to slide in the longitudinal direction within the elongated hole 9 and rotate within the tip hole 10; A male thread 15 is integrally formed with the main body. Female fastener 12
has a female thread that is threadedly engaged with the male thread 15 of the male tightening bolt 11. Therefore, when the female fastener 12 is tightly fastened to the male fastener 11, the clamping tools 8a and 8b are fixed to the side cover 5. In other words, table stand 6
will be fixed to the side cover 5. Then, when the female fastener 12 is loosened, the fixation is released, so that the table base 6 can slide in the front-back direction and can also fall forward at the sliding front end. Such a configuration eliminates the drawbacks mentioned above.

However, the child care chair 1 shown in FIG. 10 also has the following drawbacks. In the illustrated child care chair 1, the table base 6 is supported only by one rotation part 14. In other words, the table base 6 is supported by its left and right sides relatively at the rear of the table base 6 and at one place. Therefore, the table base 6 is fixed in an unstable state, and for example, ff1ffi is attached to the front part of the table base 6.
If this is applied, the sliding rotating portion 14 may become a fulcrum and cause it to wobble. In order to prevent this wobbling, it is conceivable to provide an auxiliary rod to support the front part of the table base 6, but if this is done, the appearance will be poor.

Purpose of the Invention This invention was made in view of the above-mentioned situation, and its main purpose is to be able to move the table base in the front and back direction, and to move the table base forward at the sliding front end. To provide a childcare chair which can be folded down and can stably support a table stand without detracting from its aesthetic appearance.

Printing of the Invention The child care chair according to the present invention includes a support frame disposed on the floor, a backrest plate connected to the support frame, a seat plate supported by the support frame, and supports on both sides of the seat plate. A side cover attached to the frame, a table base disposed above the front of the side cover, fixed support rods fixed to the table base and extending downward from both sides of the table base, and fixed to the lower part of the fixed support rods. It is equipped with a clamp attached to it. This clamp is located on the side wall surface of the side cover. Also,
A long hole passing through the side wall and extending in the front-rear direction, and a tip hole connected to the machine length hole at the front end of the long hole are formed in the side cover hollow. The child care chair further includes a rectangular sliding rotation part, a fastener, and a displacement member. rectangular g8
#J rotating part has a vertical dimension that is almost equal to the vertical width dimension of the long hole formed in the side cover, and can slide in the long hole in the front and back direction, and can rotate in the tip hole. It is as big as it can be. The fastener consists of an Mt threaded portion that passes through the clamping tool, the sliding rotating portion, and the side wall of the side cover, and a female threaded portion that is threaded into the male threaded portion. The displacement member is located away from the sliding rotating part, and has a portion having a vertical dimension that is approximately equal to the vertical width of the long hole, and a portion that extends between a position inside the long hole and a position outside the long hole. It is attached to the clamping tool so that it can be displaced.

Then, by firmly tightening the fastener, the clamping tool is fixed to the side cover. On the other hand, when the fasteners are loosened, the above-mentioned fixation is released, and thereby the table base can be slid in the front and back direction, and can also be scraped forward at the sliding front end.

Description of examples FIG. 1 shows an embodiment of the invention.

The illustrated child care chair 20 includes a support frame 21 placed on the floor, a backrest plate 22 connected to the support frame 21, a seat plate 23 supported by the support frame 21, and a seat plate 23 supported by the support frame 21.
Side cover 2 attached to support frame 21 on both sides of
4 and a table stand 25 arranged above the front part of the side cover 24.

The support frame 21 shown in FIG. 2 has a rear side 26 forming the bottom of a U-shape, a pair of bottom sides 27 forming both sides of the U-shape, and an upper side following the front end of the bottom side 27. and a side frame 28 bent into a substantially rectangular shape. The side frame 28 consists of two front sides, a horizontal side 30, and a central part 31 whose tip is connected to approximately the center of the bottom side 27. The bottom u27 of the support frame 21 itself is formed to be gently curved. Therefore, the backrest plate 22 of the childcare chair
When the childcare chair is folded down and used as a bed, it can be rocked like a cradle.

A U-shaped stand 32 is rotatably connected between the bottom sides 27 at the front and rear portions of both bottoms U27. Then, when these stands 32 are rotated inward until they are respectively locked with the locking protrusions 33, the support frame 21
is fixedly supported by both stands 32 with both bottom sides 27 floating above the ground.

In addition, the slightly inner part of the front stand 32 and the bottom side 2
7, there are a first support rod 34 and a second support rod 3.
5 are fixedly provided across both bottom sides 27, respectively. Approximately at the center of each of the first support rod 34 and the second support rod 35, a cup-shaped seat plate support rod 36 and a backrest support rod 37 are rotatably connected.

Referring to FIG. 1 together with FIG. 2, the backrest plate 22 is
It is rotatably connected to the side frame 28 of the support frame 21. This backrest plate 22 is supported by a backrest support rod 37 at almost any inclination angle. Also,
The seat plate 23 is rotatably connected to the lower end of the backrest plate 22, and the front part of the seat plate 23 is engaged and supported by eight temporary support rods 36. As a result, when the backrest plate 22 is tilted backward, the seat plate 23 moves forward while remaining in a substantially horizontal state. On both sides of this seat plate 23, synthetic resin night covers 24 are attached via screws etc. (not shown).
Eight pieces are attached to the horizontal side 3o of the side frame 28 of the support frame 21.

This side cover 24 serves to protect the infant sitting on the seat plate 23 and also serves to: 1. It also serves to support the table stand 25.

Further, a tangential side cover 38 made of synthetic resin is attached to the central blade 31 of the side frame 28 of the support frame 21. ” A pair of central blades of approximately U-shaped rods are fixed to the lower surface of the table base 25, and both sides of the rods extend downward from both sides of the table base 25, and are fixed to the lower surface of the table base 25. A support rod 39 is formed.

Note that the pair of fixed support rods 39 on both sides of the table base 25 do not have to be formed of substantially U-shaped rod members as described above; for example, the ends of separate rod members may be used to connect the table base They may be fixed on both sides of 25, respectively.

The lower portions of the pair of fixed support rods 39 are held by left and right holding tools 40a and 40b. These clamping tools 40a and 40b are attached to the side wall 24a of the side cover 24.
located on the surface of In FIG. 3, clamping tools 40a and 40b are shown.
The relevant configuration is shown. As shown in the figure, the left and right clamping tools 4a and 40b each have fixed support rods 39.
A receiving hole 41 is formed for receiving the. Therefore, the fixed support rod 39 is positioned by being received in the receiving hole 41 thereof. Fixation of left and right clamping tools 40a and 401), and left and right clamping tools 4Qa, 4
0b and the fixed support rod 39 are fixed, for example, via screws or the like (not shown).

Referring to FIG. 1, the side wall 24a of the side cover 24 is formed with a long hole 42 and a tip hole 43 that pass through the 11111 wall. The long hole 42 has a small vertical width and extends in the front-rear direction. The tip hole 43 is a circular through hole, and is formed continuous with the long hole 42 at the front end of the long hole 42 .

4 through 8 show the clamps 40a, 40b and related structures. With reference to FIGS. 4, 6 and 7, the side wall 24a of the side cover 24
A sliding rotating portion 44 protruding toward the side wall 24a is integrally formed on one of the holding tools 4ob facing the side wall 24a.

The sliding and rotating portion 44 is located behind the pair of fixed support rods 39, 39, and has a rectangular shape with an elongated square column at the center and semicircular columns at both ends.

As shown in FIG. 7, the vertical dimension of the sliding rotating portion 44 is the ill! of the side cover 24. The I-wall 24a is made approximately equal to the vertical width of the elongated hole 42 in the wall shape 4a. Therefore, the sliding rotating portion 44 can move MvJ in the longitudinal direction within the elongated hole 42. In addition, the sliding rotation part 44
The length in the front-rear direction is such that the I learning rotating portion 44 can rotate within the tip hole 43 formed at the front end of the elongated hole 42.

With reference to FIG. 3, FIG. 6, and FIG. 7, the clamping tool 40a
, 40b to the side wall 24a of the side cover 24, a fastener 45 is provided.

This fastener 45 has a male threaded portion 45a and a tubular threaded portion 45b.
It consists of The male screw portion 45a has a cylindrical head portion 4 positioned on the back surface of the side wall 24a of the side cover 24.
6, the side wall 24a, the sliding rotating part 44, and the clamping tool 4QI
+, and a male thread 47 passing through 40a. The female screw portion 45b has a male screw 47 that protrudes above the clamping tool 40a.
It is designed to be screwed together. Therefore, the female threaded portion 4
5b to firmly tighten the threaded part 45b and the male threaded part 45a, the side wall 24a of the side cover 24 is firmly clamped between the cylindrical head 46 of the male threaded part 45a and one clamping tool 40b. It turns out. As a result, the clamping tools 40a and 40b are fixed to the nide cover 24.

Referring to FIGS. 3, 4, 5, 6, and 8, left and right clamping tools 40a and 40b each have openings 48 and 49 formed therethrough in the shape of a substantially rectangular prism. In this opening 48, 49, there is a displaceable member 5 that is displaceable.
0 is placed. This displacement member 50 is integrally provided with a bottle 51 extending in the vertical direction. Correspondingly, as shown in FIG. 3, receiving holes 52 for receiving bottles 51 are formed in the clamping tools 40a and 40b. In this case, the displacement member 50 has an opening 48. centered around the bottle 51.
49 can be rotated.

As shown in FIG. 8, the vertical dimension of the displacement member 50 is approximately equal to the vertical width dimension of the elongated hole 42 formed in the side wall 24a of the side cover 24. As shown in FIG. and,
The displacement member 50 is configured to be displaced one position between a first position shown by a solid line and a second position shown by an imaginary line in FIG. In the first position, a portion of the displacement member 50 protrudes from the clamping tool 40b and is located within the elongated hole 42 of the side cover 24. On the other hand, in the second position shown by the imaginary line,
All portions of the displacement member 50 are located outside the elongated hole 42.

In order to prohibit free rotation of the displacement member 50 when it is in the first and second positions, the following inscriptions are preferably adopted. That is, the front end 53 of the displacement member 50 is always in contact with the frontage wall surface of the clamping tools 40a, 40b.
It is assumed to be a circular arc surface.

This arcuate surface 53 has two engaging recesses 54 and 55.
is formed, and correspondingly a clamping tool 4Qa is formed.

40b is provided with an engagement protrusion 56 that can engage with the engagement recesses 54, 55 thereof. When the engagement recess 54 and the engagement protrusion 56 are engaged, the displacement member 50 is fixed at the first position, and when the engagement recess 55 and the engagement protrusion 56 are engaged, the displacement member 50 is fixed. is fixed in the second position. In order to release these fixations, it is sufficient to apply a predetermined force or more to the displacement member 50 and rotate it.

Referring to FIGS. 5 and 6, the displacement member 50 has an operation surface 57 that can be aligned with the front surface of one of the clamping tools 40a. Two pressing portions 58 and 59 whose surfaces are serrated are formed on this operation surface 57. This suppression part 58.5
Reference numeral 9 is for providing convenience when rotating the displacement member 50. That is, if the pressing portion 59 is pressed in the state shown in FIG. 6, the displacement member 50 rotates counterclockwise in the figure and reaches the second position described above. Further, when the displacement member 50 is in the second position, if the pressing portion 58 is pressed, the displacement member 50 rotates clockwise and reaches the first position.

When the displacement member 50 is in the first position, that is, a portion thereof is located within the elongated hole 42 of the side cover 24, the table base 25
and the displacement member 50. Therefore, the table base 25 is stably fixed to the side cover 24, and even if the front part of the table base 25 is
Even if i is added, the table base 25 will not wobble.

Next, the operation and operation when changing the position of the table stand 25 will be explained with reference to FIGS. 1 and 6.

First, when attempting to move the table base 25 in the front-back direction, the tightening force of the fastener 45 is loosened by operating the female threaded portion 45b. Then, the side cover 24 is formed by the cylindrical head 46 of the male threaded portion 45a and the clamping tool 40b.
The clamping force on the side wall 24a of the clamping tool 40a is weakened.
, 40b can be slid along the elongated hole 42. Therefore, by sliding the table base 25 together with the clamping tools 40a, 40b to an appropriate position, and then rotating the female threaded portion 45b, the clamping tools 40a, 40b are rotated.
0b, that is, the table stand 25 is fixed to the side cover 24. Note that when sliding the clamping tools 40a and 40b, the displacement member 50 is placed in the first position shown by the solid line in the sixth factor. Therefore, the table does not shake when sliding and moves smoothly.

Next, when it is desired to tilt the table base 25 forward, the tightening force of the fastener 45 is loosened by operating the female threaded portion 45b, and the pushing portion 59 of the displacement member 50 is further pressed. 50 is the second position, also the sixth position.
Rotate it to the position shown by the imaginary line in the figure. In this state, the table base 25 is slid together with the clamps 40a and 40b to the 6ff end. At that position, the one-spin rotation part 44 integrally formed with the clamping tool 40b is located in the tip hole 43 of the side cover 24. Since the sliding rotating portion 44 can rotate within this tip hole 43, the table base 25 can also rotate accordingly. Therefore, if the table base 25 is tilted forward,
The state shown in FIG. 9 is 1q.

The embodiments shown in FIGS. 1-9 are merely exemplary embodiments of the invention. Therefore, various variations or modifications are possible. Some of the modified examples will be listed and explained below.

The components whose exploded perspective view is shown in FIG. 3 are those provided in connection with the left side cover 24. The above description has been made on the assumption that the right side cover 24 is also provided with substantially the same components as those shown in FIG. 3. In other words, the clamping tools 45a, 4
5b, sliding rotation part 44, fastener 45 and displacement member 5
A pair of o's are provided on the left and right. However, among these components, the fastener 45 does not necessarily need to be provided on both the left and right sides, and may be provided on only one side.

Referring to FIG. 6, in the illustrated embodiment, the sliding rotating portion 44 is formed integrally with one of the clamping tools 40b. As a modification, it is conceivable that this sliding rotating portion 44 is formed integrally with the cylindrical head portion 46 of the male screw portion 45a.

Referring to FIG. 6, the relationship between the structure related to the fastener 45 and the structure related to the displacement member 50 may be reversed. That is, in FIG. 6, the components related to the fastener 45 may be placed on the left side, and the components related to the displacement member 50 may be placed on the right side.

11L The displacement member 50 shown in FIG. 6 rotates around the bin 51. However, the mode of displacement is
It is not limited to rotational movement. For example, a displacement member that slides linearly in a direction perpendicular to the side wall 24a of the side cover 24 may be used.

Although various modifications have been described above, various modifications or modifications may be made in addition to these.

Effects of the Invention (A) Since the table base can be interlocked without removing the fastener and the table base, the movement operation of the double base is extremely easy.

(B) Since the table base can be folded forward without removing it, it is extremely easy to put an infant on and take it out of the childcare chair.

(C) The table base is supported by a pair of fixed support rods,
In addition, since this fixed support rod is fastened and fixed to the side cover using a fastener, it is possible to obtain a high-strength table with a simple structure.

(D) The table base is a sliding rotating part and a displacement member.
Since the table base is supported at the points, the table base can be stably fixed to the side cover, and even if, for example, ff1ffi is applied to the front part of the table base, the table base will not wobble. Further, since the displacement member for preventing the table base from wobbling is attached to the clamping tool, the aesthetic appearance is not impaired.

(E) Since the table base slides with the sliding rotating part and the displacement member fitted into the long holes of the side cover, there is no shaking when the table base slides, and the movement is smooth.

(F) Since the fixed support rod is provided, the table base slides away from the side cover, so there is no wear and tear on the table base and side cover.

Furthermore, it is safe because there is no chance of fingers getting caught between the table stand and the side cover.

(G) The childcare chair is designed so that it can be used as a bed by folding down the entire backrest plate, so if the table base is also placed forward, the entire chair becomes flat, reducing the packaging size. ,packing.

Convenient for storage.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 2 is a perspective view of the support frame 2 shown in FIG. FIG. 3 shows the clamping tool 40a shown in FIG.
40b is an exploded perspective view illustrating a configuration related to 40b. Fourth
The figure is a plan view showing the clamping tools 40a, 40b shown in FIG. 1 and structures related thereto. Figure 5 shows
FIG. 4 is a front view of FIG. 4; Figure 6 shows the line VI-■ in Figure 5.
FIG. Figure 7 shows the line ■- in Figure 5.
It is a cross-sectional view taken along ■. Figure 8 shows the line ■ in Figure 5.
- FIG. FIG. 9 is a diagram showing a state after the table base 25 has fallen forward from the state shown in FIG. FIG. 10 is a perspective view of a childcare chair disclosed in Japanese Patent Application No. 53-13199. Figure 11 shows
FIG. 10 is an exploded perspective view showing the groove structure related to the clamps 8a and 8b shown in FIG. 10. In the figure, 20 is a childcare chair, 21 is a support frame, 22 is a backrest plate, 23 is a seat plate, 24 is a side cover, 2484
t Side wall of the side cover, 25 is a table base, 3 are fixed support rods, 40a, 40b are clamps, 42 is a long hole, 43 is a tip hole, 44 is a false rib rotation part, 45 is a fastener, 45a is 45b is a male threaded portion, 50 is a displacement member. 30 tsb: Upstream IL opum-(15!:O: Weird 4AI group 30 tsb)

Claims (1)

[Claims] (1) A support frame arranged on a floor surface, a backrest plate connected to the support frame, a seat plate supported by the support frame, and sides attached to the support frame on both sides of the seat plate. a cover; a table base disposed above the front of the side cover; a fixed support rod fixed to the table base and extending downward from both sides of the table base; located on a side wall surface of the side cover; a clamp fixedly attached to the lower part of the fixed support rod; a long hole penetrating the side wall of the side cover and extending in the front-rear direction; and a front end of the long hole continuous with the long hole. and a tip hole formed with a vertical dimension that is approximately equal to the vertical width dimension of the long hole, so that the tip hole can be slid in the front-rear direction within the long hole, and can be rotated within the tip hole. A fastening tool comprising: a rectangular sliding and rotating portion having a size that is large enough; a male threaded portion passing through the clamping tool, the sliding and rotating portion, and the side wall of the side cover; and a female threaded portion screwed into the male threaded portion. and a portion located away from the sliding rotating part and having a vertical dimension approximately equal to the vertical width dimension of the elongated hole is displaced between a position inside the elongated hole and a position outside the elongated hole. and a displacement member attached to the clamping tool, when the clamping tool is firmly tightened, the clamping tool is fixed to the side cover, and when the clamping tool is loosened, the fixation is released, thereby causing the table base to be fixed to the side cover. This is a child care chair that can slide forward and backward and also tilt forward at the front end of the slide.