JPH0446614Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a chair for infants (children).

(Prior Art) Conventionally, there has been a seat arranged between a pair of left and right leg members, and the height of the seat can be adjusted by moving the seat vertically relative to the leg members. For example, there is one shown in FIG. In the figure, 41 is a guide groove formed along the longitudinal direction of the leg member 42, and 43 is a guide groove 4.
1, a plurality of locking grooves are formed at intervals in the longitudinal direction of the leg member 42, and 44 is a locking rod provided on the seat side. Then, the locking rod 44 is
By moving within the guide groove 41, the seat is allowed to move up and down, and by selecting the locking groove 43 and engaging the locking rod 44, the downward movement of the seat is restricted, and the seat can be moved in multiple stages. It can be adjusted up and down.

(Problems to be Solved by the Invention) In the conventional device, when the locking rod 44 is engaged with the locking groove 43, it must be done while checking visually, and the seat height change operation is difficult. This is complicated, and there is also a risk that the locking rod 44 may come off the locking groove 43 due to vibrations in the vertical direction of the seat.

SUMMARY OF THE INVENTION An object of the present invention is to provide an infant chair in which the height of the seat can be easily changed and the downward movement of the seat relative to the leg members can be reliably restricted.

(Means for Solving the Problem) The technical means taken by the present invention to achieve the above-mentioned object is that the seat 1 is supported between a pair of left and right leg members 16 so that it can freely move vertically in parallel. In the chair, a support member 12 in the left and right direction that receives the seat 1 so as to restrict its vertical position is arranged between the left and right leg members 16, and both ends of the support member 12 are arranged vertically in order to allow the seat 1 to move up and down. Guide grooves 28 that are movably engaged are formed in the left and right leg members 16, and locking grooves 29 that engage both ends of the support body 12 to prevent the support body 12 from moving downwardly and to restrict the downward movement of the seat 1. are formed in the guide groove 28 at intervals in the vertical direction, and the support body 12 can freely change its posture between a locking posture in which it engages with the locking groove 29 and a moving posture in which it engages in the guide groove 28. It is inserted through a support portion 6 provided on the seat 1 so as to have the above-mentioned locking position, and is urged by a spring 15 to take the above-mentioned locked position.

(Function) The seat 1 is allowed to move up and down by allowing both ends of the support 12 to move up and down within the guide groove 28, and by engaging both ends of the support 12 with the locking groove 28. Downward movement is regulated. When both ends of the support body 12 are engaged with the locking grooves 28, the support body 12 automatically changes its posture to a locking position in which it is engaged with the locking grooves 28 by the biasing force of the spring 15. Then, the end portion of the regulating body 12 engages with the locking groove 28. Further, the regulating body 12 is urged by the spring 15 so as to be in the locked position, and is not easily removed from the locking groove 28.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. As shown in Figures 1, 5 and 6, 1
1 is a seat comprising left and right side plates 2, a seat portion 3 connected between the side plates 2, and a backrest portion 4. The side plate 2 is provided with a tray 5, and a footrest 30 is connected between the lower ends of the side plate 2.

Support members 6 (support parts) made of synthetic resin are fitted into the rear edges of the left and right side plates 2 of the seat 1 in the middle of the upper and lower parts, and are attached and fixed with screws 7. The support member 6 consists of a main body 8 and a lid 9 screwed to the outside of the main body 8, and insertion holes 10 and 11 are formed in the inner wall 8a of the main body and the lid 9 at the rear lower part of the support member 6, respectively. There is. Then, the insertion hole 1 of the support member 6
Both ends of a plate-shaped support 12 extending in the left-right direction are inserted through the holes 0 and 11, and a wooden gripping member 13 is fixed to the intermediate portion of the support 12. Each insertion hole 1
0 and 11 are formed to become wider toward the lower side, and the lower side of the regulating body 12 is swingable back and forth around the upper end, and the insertion hole 1 inside the support member 6
A spring 15 that urges the support body 12 forward is housed in a space 14 formed between 0 and 11. In this embodiment, the support member 6 constitutes a support portion, but the midway portion of the side plate 2 itself may be used as a support portion, and an insertion hole through which the support body 12 is inserted may be formed therein.

A pair of left and right leg members 16 are provided on the left and right outer sides of the seat 1.
are arranged, and this leg member 16 has a front leg 17 and a rear leg 1.
The front leg 17 and the rear leg 18 are pivotally connected by a pivot 19 at the upper end. Further, the left and right front legs 17 and the left and right rear legs 18 are connected by connecting members 20 and 21, respectively. Left and right hind legs 18
A "V"-shaped engagement groove 22 is formed on the inner surface, and an engagement shaft 24 provided on a U-shaped support frame 23 pivotally connected to the front leg 17 is slidably inserted into this engagement groove 22. The rear legs 18 can be folded apart relative to the front legs 17 by vertically moving the support frame 22. A linear fitting groove 25 is formed on the front side of the inner surface of the left and right front legs 17 along the longitudinal direction of the leg.
A fitting protrusion 26 provided on the outer side of the lower end portions of the left and right side plates 2 is fitted into the fitting groove 25 so as to be slidable in the vertical direction.

A groove forming member 27 extending from the upper part to the lower part is recessed on the inner rear side of the left and right front legs 17, and the groove forming member 27 has a support member extending from the upper end to the lower end to allow vertical movement of the seat 1. A guide groove 28 that guides the end of the body 12 in the vertical direction is formed, and a locking groove 29 that locks the end of the regulating body 12 to restrict the downward movement of the seat 1 is formed in the guide groove 28.
A plurality of them are formed at appropriate intervals along the longitudinal direction of the leg.

In the above configuration, FIG. 2 shows a state in which the end portion of the support body 12 is locked in the locking groove 29, and in this state, the regulating body 12 is immovable and the downward movement of the seat 1 is regulated. At the same time, the support body 12 is biased by the spring 15 so as to assume a locking position in which it engages with the locking groove 29 . To lower the seat 1 from this state, first pull up the support 12 together with the seat 1 and swing it backwards around the upper end against the biasing force of the spring 15, as shown in FIG.
When the end of the support 12 separates from the locking groove 29, the attitude of the support 12 is changed to a moving position in which the end of the support 12 can freely move up and down the guide groove 28. Next, while maintaining this moving posture, lower the seat 1 to an appropriate position,
When the restraint of the support body 12 is released and the seat 1 is further lowered, the restraint of the regulating body 12 is engaged with the locking groove 29 closest to the position below the position where the restraint is released. Spring 1 in the locking position
5, it is automatically returned and engaged.

Moreover, in order to raise the seat 1, when the seat 1 is grasped and pulled up, the ends of the support body 12 are
The seat 1 is allowed to move upward by sliding on the front side of the support member 9, and the support member 12 is inserted into the locking groove 29 at an appropriate position.
The ends may be engaged in the same manner as described above. In this way, the height of the seat 1 can be adjusted very easily, and since the regulating body 12 is urged by the spring 15 to take the locking position, the locking groove 2
He won't let go of 9 easily.

(Effect of the invention) According to the invention, the end portion of the support body 12 is connected to the locking groove 29.
When the support body 12 is engaged with the guide groove 2
Since the position is automatically changed by the spring 15 from the movement position in which the seat 1 is freely movable within the seat 8 to the locking position in which the seat 1 engages with the locking groove 29, it is extremely easy to change the height of the seat 1. In addition, since the regulating body 12 is urged by the spring 15 so as to assume the locking position, the end portion of the regulating body 12 does not easily come off from the locking groove 29.

[Brief explanation of the drawing]

1 to 9 show an embodiment of the present invention, FIG. 1 is a sectional view taken along the line shown in FIG. 6, FIG. 2 is an enlarged side view of the main part, and FIG. Fig. 4 is a side view showing the operating state of the main parts;
6 is a rear view of the same, FIG. 7 is a side view of the groove forming member, FIG. 8 is a view taken along the line shown in FIG. 6, and FIG. 9 is a side view of the lid of the support member. , FIG. 10 is an explanatory diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... Seat, 6... Support member, 12... Support body, 15... Spring, 16... Leg member, 28... Guide groove, 29... Locking groove.

Claims (1)

[Scope of utility model registration request] In an infant chair in which the seat 1 is supported between a pair of left and right leg members 16 so as to be able to move vertically in parallel, the left and right supports 12 that receive the seat 1 so as to restrict its vertical position are the left and right legs. Member 16
A guide groove 2 is disposed between the guide grooves 2 and engages both ends of the support body 12 in a vertically movable manner to allow the seat 1 to move vertically.
8 is formed on the left and right leg members 16, and a locking groove 29 that engages both ends of the support body 12 in order to prevent the support body 12 from moving downwardly and restrict the downward movement of the seat 1 is provided in the guide groove 28 in the vertical direction. A plurality of supports 12 are formed at intervals between each other, and the support body 12 is provided on the seat 1 so as to be able to change its posture freely between a locking position in which it engages with the locking groove 29 and a moving position in which it engages in the guide groove 28. A child's chair, which is inserted through a supporting part 6 and is biased by a spring 15 into the locked position.