JP2012075712A - Toddler chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toddler chair, in which a sitting body or a footrest is easily and surely adjusted vertically.SOLUTION: The right and left outer end parts of a seat stopper 31 are projected to the outer side from a pair of downward extending sections 29 of the seat and are insertable so as to be freely displaced back and forth from one end in the back and forth directions of seat fitting grooves 23, the seat stopper 31 is supported so as to be pivotally supported between the paired downward extending sections 29 of the seat so as to be in a horizontal state in which the outer end parts can be displaced back and forth in the opposing seat fitting grooves 23 and an inclined state in which the outer end parts of the seat stopper 31 are engaged with engaging parts 27 of the seat fitting grooves 23 so as not to be disengaged, and seat stopper energizing members 32 for energizing the seat stopper 31 from the horizontal state to the inclined state are provided. Mounting projection parts 33 to be fitted to mounting recessed parts 26 when the outer end parts of the seat stopper 31 are displaced back and forth in the seat fitting grooves 23 and engaged with the engaging parts 27 are projected on the paired downward extending sections 29 of the seat.

Description

  The present invention relates to an infant chair in which a seat body or a footrest can be adjusted up and down.

  Some conventional infant chairs include a pair of left and right support legs, and a seating body or a footrest is provided between the pair of support legs so as to be vertically adjustable. The pair of left and right support legs are provided with a plurality of stages of fitting grooves in the front-rear direction facing the left and right sides, and a positioning recess is provided below the middle part of the fitting grooves in the front-rear direction. A pair of left and right stoppers that are detachably engaged with the positioning recesses are provided on the left and right sides of the lower surface side of the, and springs that bias the stoppers outward toward the positioning recesses are provided. (For example, Patent Document 1).

Japanese Patent Laid-Open No. 2004-195022

  In this type of conventional infant chair, when a seating body or a footrest is attached to a pair of support legs, a pair of left and right stoppers are pulled inward in the left-right direction against the spring bias with both hands. The left and right ends of the body or footrest were inserted into the fitting groove in the front-rear direction, and the stopper was released from the inward lateral direction when the stopper corresponded to the positioning recess. When removing the seating body or the footrest from the pair of support legs, pull the pair of left and right stoppers inward in the left-right direction against the bias of the spring with both hands while Both end portions were moved in the front-rear direction with respect to the fitting groove and removed from the fitting groove. Therefore, when adjusting the seating body or the footrest, the left and right ends of the seating body or the footrest must be inserted into and removed from the fitting groove while pulling the pair of stoppers inward in the left-right direction using both hands. Yes, the vertical adjustment of the seating body or the footrest was very troublesome.

  An object of this invention is to provide the infant chair which can adjust a seat body or a footrest stand up and down more simply and reliably in view of the said problem.

The technical means of the present invention for solving this technical problem is an infant chair provided with a pair of left and right support legs 2, and a seat body 4 provided between the pair of support legs 2 so as to be vertically adjustable.
A plurality of stages of seating fitting grooves 23 in the front-rear direction are provided in the middle in the vertical direction of the pair of support legs 2 so as to face the left and right, and one end in the front-rear direction of each seating fitting groove 23 is opened and the one end portion. A mounting recess 26 is provided, and an engaging portion 27 is provided at the other end in the front-rear direction of each seating fitting groove 23,
A pair of left and right sitting suspending bodies 29 projecting downward on the left and right sides of the seating body 4 are provided in the front-rear direction, and a pair of seating suspending bodies 29 are provided with plate-like seating stoppers 31 penetrating from side to side in the left and right directions, The left and right outer ends of the seating stopper 31 protrude outward from the pair of seating hanging bodies 29 so that the seating stopper 31 can be inserted back and forth from one end of the seating fitting groove 23 in the front-rear direction. A horizontal state in which the seating stopper groove 31 is movable in the front-rear direction and an inclined state in which the outer end portion of the seating stopper 31 is engaged with the engaging portion 27 of the seating fitting groove 23 so as not to be detached. A seating stopper urging means 32 is provided between the pair of seating suspending bodies 29 so as to be swingable and urges the seating stopper 31 from the horizontal state toward the inclined state.
When the outer end portion of the seating stopper 31 moves back and forth in the seating fitting groove 23 and engages with the engaging portion 27, the mounting convex portion 33 fitted into the mounting concave portion 26 is formed on the pair of seating hanging bodies 29. It is in the point which is projected.

Further, another technical means of the present invention is that a footrest 16 is provided below the seating body 4 between the pair of support legs 2 so as to be adjustable in the vertical direction. Below the seating fitting groove 23, a plurality of stages of footrest fitting grooves 38 in the front-rear direction are provided corresponding to the left and right, and one end in the front-rear direction of each footrest fitting groove 38 is opened and at one end thereof. A mounting recess 41 is provided, and an engaging portion 42 is provided at the other end in the front-rear direction of each footrest fitting groove 38,
A pair of left and right footrest hanging bodies 44 projecting downward on both the left and right sides of the footrest 16 are provided in the front-rear direction. The left and right outer end portions of the footrest stopper 46 protrude outward from the pair of footrest hanging bodies 44 and can be inserted movably back and forth from one end in the front-rear direction of the footrest fitting groove 38. 46 is in a horizontal state in which the outer end portion thereof can be moved back and forth in the opposing footrest fitting groove 38, and the outer end portion of the footrest stopper 46 is prevented from being detached into the engaging portion 42 of the footrest fitting groove 38. A footrest stopper urging means 47 that is swingably supported between the pair of footrest hanging bodies 44 so as to be engaged and that urges the footrest stopper 46 from the horizontal state toward the inclined state. Is provided,
When the outer end portion of the footrest stopper 46 moves back and forth in the footrest fitting groove 38 and engages with the engaging portion 42, the placement convex portion that fits into the placement concave portion 41 of the footrest fitting groove 38. The point 48 protrudes from the pair of footrest hanging bodies 44.

Another technical means of the present invention is that the front end of each of the plurality of seating fitting grooves 23 is opened and a mounting recess 26 is provided at the front end, and the rear end of each seating fitting groove 23 is provided. Is provided so that the outer end of the seating stopper 31 can be inserted into the seating fitting groove 23 facing the front end from the front side.
Each of the plurality of stages of footrest fitting grooves 38 has a rear end opened, a placement recess 41 is provided at the rear end portion, and an engagement portion 42 is provided at the front end portion of each footrest fitting groove 38. The outer end portion of the footrest stopper 46 can be inserted into the opposite footrest fitting groove 38 movably back and forth from the rear side.

Further, according to another technical means of the present invention, the engaging portion 27 of each seating fitting groove 23 is formed in a triangular shape tapering from the rear end portion of the seating fitting groove 23 toward the rear, and the seating stopper 31 is supported so as to be swingable in a horizontal state and a forwardly inclined state with the rear end side as a fulcrum,
The engaging portion 42 of each footrest fitting groove 38 is formed in a triangular shape tapering forward from the front end portion of the footrest fitting groove 38, and the footrest stopper 46 is in a horizontal state with the front end side as a fulcrum. It is in the point that it is supported so as to be able to swing in a rearwardly inclined state.

In another technical means of the present invention, a footrest 16 is provided below the seating body 4 between the pair of left and right support legs 2 so as to be vertically adjustable. The foot placement fitting grooves 38 in the direction are provided in a plurality of stages corresponding to the left and right, one end in the front-rear direction of each foot placement fitting groove 38 is opened, and a placement recess 41 is provided at the one end. An engagement portion 42 is provided at the other end in the front-rear direction of the placement fitting groove 38,
A pair of left and right footrest hanging bodies 44 projecting downward on both the left and right sides of the footrest 16 are provided in the front-rear direction. The left and right outer end portions of the footrest stopper 46 protrude outward from the pair of footrest hanging bodies 44 and can be inserted movably back and forth from one end in the front-rear direction of the footrest fitting groove 38. 46 is in a horizontal state in which the outer end portion thereof can be moved back and forth in the opposing footrest fitting groove 38, and the outer end portion of the footrest stopper 46 is prevented from being detached into the engaging portion 42 of the footrest fitting groove 38. A footrest stopper urging means 47 that is swingably supported between the pair of footrest hanging bodies 44 so as to be engaged and that urges the footrest stopper 46 from the horizontal state toward the inclined state. Is provided,
When the outer end portion of the footrest stopper 46 moves back and forth in the footrest fitting groove 38 and engages with the engaging portion 42, the placement convex portion that fits into the placement concave portion 41 of the footrest fitting groove 38. The point 48 protrudes from the pair of footrest hanging bodies 44.

According to the present invention, when the seating body (or the footrest) is adjusted up and down, for example, the seating stopper is gripped with one hand and the seating stopper is moved from the inclined state to the horizontal state against the biasing of the seating stopper biasing means. The seating body can be pulled out, and the outer end of the seating stopper moves in the seating fitting groove facing left and right, so that the seating body is easily pulled out from between the pair of support legs.
In addition, for example, the seating stopper is held with one hand to make the seating stopper horizontal from the inclined state against the bias of the seating stopper biasing means, and the outer end of the seating stopper is opposed to the left and right of the other stage. When the seating stopper is inserted into the fitting groove, the outer end of the seating stopper is inserted into the engaging part, the mounting convex part is fitted into the mounting concave part, and the seating stopper is released, the seating stopper is urged by the seating stopper. The seating stopper is changed from the horizontal state to the inclined state by the urging by the means, the outer end portion of the seating stopper is engaged with the engaging portion so that it cannot be removed, and the seating body cannot be moved in a horizontal state between the pair of support legs. Retained.

  Therefore, the seat body (or footrest) can be adjusted up and down more easily and reliably.

It is a perspective view of the infant chair which shows one embodiment of the present invention. It is a side view of the infant chair. It is a perspective view of the lower part of the seating body. It is a side view of the seating body. It is a side view of the seating fitting groove part. It is a side view of the seating fitting groove part in the middle of adjusting the seating body up and down. It is a side view of the footrest. It is a perspective view of the footrest stand part. It is a side view of the footrest fitting groove part. It is a side view of the footrest fitting groove part in the middle of adjusting the same footrest. It is a perspective view of the brace and a support base part. It is side surface sectional drawing of the brace and a support stand part. It is side surface sectional drawing of the brace and the support stand part of the state which cancelled | released the lock member. It is side surface sectional drawing of the brace and support stand part of the state which removed the hook body from the latching shaft. It is a perspective view of the state which folded the brace and support stand part. It is a side view of the state which folded the brace and support stand part.

Hereinafter, the present invention will be described according to the illustrated embodiments.
The drawings show an embodiment of the present invention. 1 and 2, the infant chair 1 includes a pair of left and right support legs 2, and a backrest body 3 and a seat body 4 are provided at an upper portion between the pair of support legs 2. The backrest 3 has two back plates 7 and 8 on the upper and lower sides, and the back plates 7 and 8 are arranged between the support legs 2 with a space therebetween in the vertical direction and fixed to the support legs 2 with screws or the like. Has been.

As shown in FIG. 3, the central portions of the pair of support legs 2 are connected to each other by a central connecting member 10, and the lower portions of the pair of support legs 2 are connected to each other by a lower connecting member 11.
A guard frame 13 that protrudes forward and surrounds the torso of the infant sitting on the seating body 4 is detachably provided on the upper part of the pair of left and right support legs 2, and the tray member 14 is detachably disposed and fixed on the guard frame 13. Has been. A crotch belt 15 is provided between the guard frame 13 and the seat body 4.

The seat body 4 is attached below the backrest body 3 between the pair of support legs 2 so as to be vertically adjustable, and a footrest 16 is provided below the seat body 4 so as to be vertically adjustable.
A support base 19 having a pair of left and right rear projecting bodies 18 projecting rearward from the lower ends of the pair of left and right support legs 2 is provided, and a pair of left and right braces 20 project downward from the middle part of the pair of left and right support legs 2. The lower ends of the pair of braces 20 are detachably connected to the rear side of the support base 19 as will be described later.

The vertical adjustment of the seating body 4 is made possible by the following configuration.
2-6, the seating fitting groove | channel 23 of the front-back direction is provided in the middle part of the up-down direction of a pair of support leg 2 at multiple steps (4 steps in a figure example) facing left and right. The plurality of seating fitting grooves 23 are formed in one groove forming member 24 made of synthetic resin or the like, and a groove forming recess is formed on the inner surface of the pair of support legs 2 so as to close the groove forming recess. The groove forming member 24 is fitted and fixed to the groove forming recess with a screw or the like.

  The front end of each seating fitting groove 23 is opened, a mounting recess 26 is provided at the front end portion, and an engaging portion 27 is provided at the rear end portion of each seating fitting groove 23. The mounting recess 26 of each seating fitting groove 23 bulges upward from the front end of each seating fitting groove 23 in an arc shape. The engaging portion 27 of each seating fitting groove 23 is formed downward from the seating fitting groove 23 and is formed in a triangular shape that tapers backward from the rear end portion of the seating fitting groove 23. Has been.

  A pair of left and right sitting suspensions 29 projecting downward on the left and right sides of the seating body 4 are provided in the front-rear direction. An insertion hole 30 is provided in the pair of sitting suspension bodies 29, and a pair of seating suspension bodies 29 are provided with plate-like seating stoppers 31 penetrating left and right through the insertion holes 30 in the left-right direction. The seating stopper 31 is composed of a metal plate that is long in the left-right direction, and the left and right outer ends of the seating stopper 31 protrude outward from the pair of seating hanging bodies 29 and can be inserted from the front end of the seating fitting groove 23 so as to be movable back and forth. Has been. The seating stoppers 31 are swingably supported in the insertion holes 30 of the pair of seating suspending bodies 29 so as to be in a horizontal state and an inclined state inclined forward and downward with the rear end side as a fulcrum. As a result, the outer end portion of the seating stopper 31 becomes horizontal and can be moved back and forth in the opposing seating fitting groove 23, and the front end of the seating stopper 31 is inclined downward and is pulled out to the engaging portion 27 of the seating fitting groove 23. Engagement is impossible.

Seating stopper urging means 32 for urging the seating stopper 31 from the horizontal state toward the inclined state is provided. The seating stopper urging means 32 is constituted by a compression coil spring and is provided in each of the insertion holes 30 of the pair of seating hanging bodies 29.
When the mounting convex portion 33 protrudes outward from the pair of seating hanging bodies 29 and the outer end portion of the seating stopper 31 moves back and forth in the seating fitting groove 23 and engages with the engaging portion 27. The mounting convex portion 33 is adapted to fit into the mounting concave portion 26.

Thus, when the outer end portion of the seating stopper 31 is engaged with the engaging portion 27 and the mounting convex portion 33 is fitted into the mounting concave portion 26, the load of the seating body 4 is applied to the outer end of the seating stopper 31. The seating fitting groove 23 is configured to be received via the portion and the placement convex portion 33.
The vertical adjustment of the footrest 16 is made possible by the following configuration.
2 and 7 to 10, a footrest fitting groove 38 in the front-rear direction is provided on the lower side of the seating body 4 of the pair of support legs 2 in a plurality of stages (five stages in the illustrated example). ing. The plurality of footrest fitting grooves 38 are respectively formed in a groove forming member 39 made of synthetic resin or the like, and a groove forming recess is formed on the inner surface of the pair of support legs 2 so as to close the groove forming recess. The groove forming member 39 is fitted and fixed to the groove forming recess with a screw or the like.

  The rear end of each footrest fitting groove 38 is opened and a placement recess 41 is provided at the rear end portion, and an engaging portion 42 is provided at the front end portion of each footrest fitting groove 38. The mounting recess 41 of each footrest fitting groove 38 bulges downward from the front end of each footrest fitting groove 38 in an arc shape. The engaging portion 42 of each footrest fitting groove 38 is formed in a downward shape from the footrest fitting groove 38 and is tapered in a forward direction from the front end portion of the footrest fitting groove 38. Is formed.

  A pair of left and right footrest hanging bodies 44 projecting downward on the left and right sides of the footrest 16 are provided in the front-rear direction. An insertion hole 45 is provided in the pair of footrest suspension bodies 44, and a pair of footrest suspension bodies 44 are provided with plate-like footrest stoppers 46 penetrating left and right through the insertion holes 45 in the left-right direction. . The footrest stopper 46 is formed of a metal plate that is long in the left-right direction, and the left and right outer ends of the footrest stopper 46 protrude outward from the pair of footrest hanging bodies 44 so as to move forward and backward from one end in the front-rear direction of the footrest fitting groove 38 It can be inserted freely. The footrest stoppers 46 are swingably supported in the insertion holes 45 of the pair of footrest hanging bodies 44 so as to be in a horizontal state and an inclined state inclined rearwardly with the front end side as a fulcrum. As a result, the outer end portion of the footrest stopper 46 is in a horizontal state and can be moved back and forth in the opposing footrest fitting groove 38, and is in a rearwardly inclined state and is engaged with the footrest fitting groove 38. 42 is engaged so that it cannot be removed.

A footrest stopper urging means 47 for urging the footrest stopper 46 from the horizontal state toward the inclined state is provided. The footrest stopper urging means 47 is constituted by a compression coil spring and is provided in each of the insertion holes 45 of the pair of footrest hanging bodies 44.
A pair of footrest hanging bodies 44 are provided with a mounting convex portion 48 projecting outward, and the outer end portion of the footrest stopper 46 moves back and forth in the footrest fitting groove 38 and engages with the engaging portion 42. When this is done, the mounting convex portion 48 is fitted into the mounting concave portion 41.

Thus, when the outer end portion of the footrest stopper 46 is engaged with the engaging portion 42 and the mounting convex portion 48 is fitted into the mounting concave portion 41, the load of the footrest base 16 is applied. The footrest fitting groove 38 is configured to receive the outer end portion of the footrest and the mounting convex portion 48.
1, FIG. 2 and FIGS. 11 to 16, the front end portion of the rear protrusion 18 is supported by the lower end portions of the pair of left and right support legs 2 so as to be swingable about the support shaft 51 in the left and right direction, and a pair of rear portions. The rear end portion of the projecting body 18 is connected by a rear connecting member 52. A locking shaft 54 in the left-right direction is connected to the front of the rear connecting member 52 and between the rear portions of the pair of left and right rear protrusions 18. A caster 55 that is rotatable around the support shaft 51 is provided between the lower end portions of the pair of left and right support legs 2 and the front end portions of the pair of left and right rear protrusions 18.

A pair of left and right braces 20 are provided so as to protrude downward from the middle part of the pair of left and right support legs 2. The upper ends of the pair of braces 20 are supported in the middle of the pair of support legs 2 so as to be swingable in the directions of arrows e and f around the support shaft 57 in the left-right direction. A lower connecting body 58 that connects the lower sides of the pair of braces 20 is provided.
A hook body 60 is supported at the lower ends of the pair of braces 20 so as to be swingable in the directions of arrows a and b around a horizontal axis 61, and is engaged with a locking shaft 54 from above. Hook urging means 62 is provided to urge the pair of hook bodies 60 about the horizontal axis 61 from above the locking shaft 54 toward the locking shaft 54 (in the direction of arrow a). The hook urging means 62 is constituted by a winding spring and is provided at the base of the hook body 60.

The hook body 60 has an engaging groove 59 on the lower side as shown in FIGS. 12 to 14, and the engaging groove 59 is formed in an arc shape with the horizontal shaft 61 as a fulcrum. By turning in the a direction, the hook body 60 is more easily and reliably engaged with the locking shaft 54 via the engagement groove 59.
The pair of left and right hook bodies 60 are connected to each other by a left and right hook connecting body 64. A lock member 65 is provided on the lower connecting body 58 so as to be swingable in the directions of arrows c and d around a pivot 66 in the left-right direction. When the lock member 65 swings around the pivot 66 in the direction of the arrow c, the lock member 65 moves to the lock position X where the lock member 65 engages with the engagement recess 63 of the hook coupling body 64 as shown in FIG. Restricts the upward swinging of the hook body 60 about the horizontal axis 61 at the engagement position where the hook body 60 engages with the locking shaft 54. When the lock member 65 swings around the pivot 66 in the direction of the arrow d, as shown in FIGS. 13 and 14, the lock member 65 moves to the unlocking position Y where the engagement of the hook coupling body 64 with the engagement recess 63 is released. Then, the hook body 60 is allowed to swing upward (in the direction of the arrow b) around the horizontal axis 61 so that the hook body 60 is detached from the locking shaft 54.

Lock urging means 67 for urging the lock member 65 from the unlock position Y to the lock position X is provided. The lock urging means 67 is constituted by a winding spring and is housed in the lock member 65.
The middle part of the pair of braces 20 and the locking shaft 54 are connected by a pair of left and right connecting rods 69, respectively, and when the brace 20 swings back around the support shaft 57 (in the direction of arrow f). The pair of left and right rear protrusions 18 swings around the support shaft 51 (in the direction of arrow h) and protrudes rearward, and the hook body 60 can be engaged with the locking shaft 54, and the brace 20 is moved around the support shaft 57 ( When swinging in the direction of arrow e) along the lower side of the pair of support legs 2, the pair of rear protrusions 18 swings around the support shaft 51 (in the direction of arrow h) to lower the support leg 2. The lower part of the infant chair 1 is configured to be foldable.

  One end of the pair of connecting rods 69 is swingably connected around the locking shaft 54, and the other end is connected to the middle portion of the pair of braces 20 around the swing shaft 71 in the left-right direction. As shown in FIG. 16, in the side view, the swing shaft 71 of the connecting rod 69 is located above the line segment L connecting the support shaft 51 and the locking shaft 54 when the infant chair 1 is in use. However, in a state where the lower part of the infant chair 1 is folded, the swinging shaft 71 moves downward (rear side) below the line segment L and stretches, so that the pair of rear protrusions 18 are folded in the folded state. It is possible to prevent the brace 20 from unintentionally swinging around the support shaft 51 in the direction of the arrow h and unintentionally swinging around the support shaft 57 in the direction of the arrow f.

  According to the above-described embodiment, when the seating body 4 is adjusted up and down, the seating stopper 31 is gripped with one hand and the seating stopper 31 is placed in a horizontal state against the biasing of the seating stopper biasing means 32. The body 4 may be pulled out to the front side. The outer end of the seating stopper 31 moves forward in the seating fitting groove 23 facing the left and right, and the seating body 4 is easily pulled out from between the pair of support legs 2 to the front. . Next, the seating stopper 31 is gripped with one hand, the seating stopper 31 is moved from the inclined state to the horizontal state against the biasing of the seating stopper biasing means 32, and the outer end of the seating stopper 31 is moved to the left and right of the other steps. Is inserted from the front end into the seating fitting groove 23 opposite to the seating portion, and the outer end portion of the seating stopper 31 is inserted into the engaging portion 27, and the mounting convex portion 33 is fitted into the mounting concave portion 26, and seating is performed. When the stopper 31 is released, the seating stopper 31 is moved from the horizontal state to the inclined state by the urging force of the seating stopper urging means 32, and the outer end portion of the seating stopper 31 is released into the engaging portion 27 and cannot be removed. The seating body 4 is held in a state of being immovable in a horizontal state between the pair of support legs 2. Therefore, the seat body 4 can be adjusted up and down easily and reliably.

  Further, when the footrest 16 is adjusted up and down, the footrest stopper 46 is gripped with one hand and the footrest stopper 46 is moved from the inclined state to the horizontal state against the urging force of the urging means. The footrest stopper 46 can be pulled out backward easily from between the pair of support legs 2 by moving the seating stopper groove 46 facing the left and right to the rear and the seating fitting groove 23. Next, the footrest stopper 46 is gripped with one hand and the footrest stopper 46 is moved from the inclined state to the horizontal state against the urging force of the footrest stopper urging means 47, and the outer end portion of the footrest stopper 46 is moved to the other side. And inserting the outer end of the footrest stopper 46 into the engaging portion 42, and the mounting convex portion 48 into the mounting concave portion 41. When the footrest stopper 46 is released after being fitted, the footrest stopper 46 is changed from the horizontal state to the inclined state by the urging force of the footrest stopper urging means 47, and the outer end portion of the footrest stopper 46 is moved. Is engaged with the engaging portion 42 so that it cannot be removed, and the footrest 16 is held between the pair of support legs 2 so as not to move in a horizontal state. Therefore, the footrest 16 can be adjusted up and down easily and reliably.

  When the pair of braces 20 and the support base 19 are folded, as shown in FIGS. 11 and 12, the pair of hook bodies 60 are engaged with the locking shaft 54 from above, and the lock member 65 is engaged with the hook coupling body 64. The hook body 60 moves to the lock position X that engages with the recess 63, and the hook body 60 swings upward (in the direction of arrow b) around the horizontal shaft 61 at the engagement position where the hook body 60 engages with the locking shaft 54. 13, the lock member 65 is swung around the pivot 66 in the direction of the arrow d against the bias of the lock biasing means 67 as shown in FIG. After moving to the unlocking position Y where the engagement with the engaging recess 63 is disengaged, the hook body 60 and the hook connecting body 64 are moved around the pivot 66 against the hook urging means 62 as shown in FIG. Swing in the direction b and remove the hook body 60 from the locking shaft 54 . Then, the pair of braces 20 can swing in the directions of arrows e and f around the support shaft 57, and the pair of rear protrusions 18 to the support base 19 can swing in the directions of arrows e and f around the support shaft 51. become.

  Thereafter, as shown in FIG. 15, when the pair of braces 20 are swung around the support shaft 57 in the direction of the arrow e and along the lower side of the pair of support legs 2, the pair of braces 20 are interlocked with the pair of braces 20, The pair of rearward projecting bodies 18 swings around the support shaft 51 in the direction of the arrow g, and the pair of rearward projecting bodies 18 to the support base 19 are along the lower side of the support leg 2. Alternatively, when the pair of rear protrusions 18 are swung around the support shaft 51 in the direction of the arrow g and the pair of rear protrusions 18 to the support base 19 are placed along the lower side of the support leg 2, The pair of braces 20 swings around the support shaft 57 in the direction of arrow e, and the pair of braces 20 follows the lower side of the pair of support legs 2. Therefore, the lower part of the infant chair 1 is folded compactly.

  Before the lower part of the infant chair 1 is folded, the swing shaft 71 of the connecting rod 69 is located above the line segment L connecting the support shaft 51 and the locking shaft 54 in a side view as shown in FIG. In the middle of folding the lower part of the infant chair 1, the swinging shaft 71 moves from the front side to the rear side with respect to the line segment L as shown in FIG. Then, when the swinging shaft 71 is positioned and stretched behind the line segment L, the pair of rear protrusions 18 unexpectedly swings around the support shaft 51 in the direction of the arrow h and opens from the folded state. The brace 20 can be prevented from unexpectedly swinging around the support shaft 57 in the direction of arrow f and opening. Accordingly, the infant chair 1 can be conveniently folded and stored or transported.

The guard frame 13, the tray member 14, the seat body 4, and the footrest 16 can be easily detached from the pair of support legs 2.
When the infant chair 1 is used from the folded state, when the pair of braces 20 are swung in the direction of the arrow f around the support shaft 57 and protruded rearwardly, a pair of braces 20 are interlocked with the pair of braces 20. The rear projecting body 18 through the support base 19 swing around the support shaft 51 in the direction of the arrow h, and the pair of rear projecting bodies 18 through the support base 19 project rearward from the lower end of the support leg 2. Alternatively, when the pair of rear protrusions 18 to 19 is swung around the support shaft 51 in the direction of the arrow h, the pair of rear protrusions 18 to 19 protrudes rearward from the lower end of the support leg 2. In conjunction with this, the pair of braces 20 swing around the support shaft 57 in the direction of the arrow f and project rearwardly downward.

  Then, as shown in FIG. 13, the lock member 65 is swung around the pivot 66 in the direction of the arrow d against the bias of the lock biasing means 67, and the lock member 65 is connected to the hook coupling body 64. It moves to the unlocking position Y where the engagement is released, and the hook body 60 is engaged with the locking shaft 54 at the engaging position. Next, as shown in FIG. 11 and FIG. 12, the lock member 65 may be moved to the lock position X that engages with the hook coupling body 64, and the infant chair 1 is easily and reliably used from the folded state. be able to.

In addition, in the said embodiment, although both the seating body 4 and the footrest stand 16 can be adjusted up and down, it replaces with this, and either the seating body 4 or the footrest stand 16 can be adjusted up and down, and the other May be fixed to the pair of support legs 2.
Moreover, in the said embodiment, the front end of the seating fitting groove 23 is opened, the mounting recess 26 is provided at the front end portion, and the engaging portion 27 is provided at the rear end portion of each seating fitting groove 23. However, instead of this, the rear end of the seating fitting groove 23 is opened, the mounting recess 26 is provided at the rear end portion, and the engaging portion 27 is provided at the front end portion of each seating fitting groove 23. Also good. Further, the front end of the footrest fitting groove 38 may be opened, the mounting recess 26 may be provided at the front end portion, and the engaging portion 42 may be provided at the rear end portion of each footrest fitting groove 38.

  Further, the engaging portions 42 of the respective seating fitting grooves 23 and the footrest fitting grooves 38 may be formed to have a triangular shape upward from the seating fitting grooves 23 or the footrest fitting grooves 38. Good.

DESCRIPTION OF SYMBOLS 1 Infant chair 2 Support leg 3 Backrest body 4 Seating body 16 Footrest base 18 Back protrusion body 19 Support base 20 Brace 23 Seating fitting groove 26 Mounting recessed part 27 Engaging part 29 Seating hanging body 31 Seating stopper 32 Seating stopper Biasing means 33 Placement convex part 41 Placement concave part 42 Engagement part 44 Foot rest hanging body 46 Foot rest stopper 47 Foot rest stopper biasing means 48 Placement convex part 51 Support shaft 54 Locking shaft 57 Support shaft 58 Lower connection Body 60 Hook body 61 Horizontal shaft 62 Hook biasing means 64 Hook coupling body 65 Lock member 67 Lock biasing means X Lock position Y Lock release position

Claims (5)

An infant chair comprising a pair of left and right support legs (2), and a seating body (4) provided between the pair of support legs (2) so as to be vertically adjustable,
A plurality of stages of seating fitting grooves (23) in the front-rear direction are provided in the middle in the vertical direction of the pair of support legs (2), facing left and right, and one end in the front-rear direction of each seating fitting groove (23) is open. In addition, a mounting recess (26) is provided at the one end, and an engaging portion (27) is provided at the other end in the front-rear direction of each seating fitting groove (23).
A pair of left and right sitting suspending bodies (29) projecting downward on the left and right sides of the seating body (4) are provided in the front-rear direction, and the pair of sitting suspending bodies (29) penetrates from side to side in the left and right and are plate-like seats that are long in the left and right direction. A stopper (31) is provided, and the left and right outer ends of the seating stopper (31) protrude outward from the pair of seating hanging bodies (29) so as to be movable back and forth from one end in the front-rear direction of the seating fitting groove (23). The seating stopper (31) can be inserted and the outer end of the seating stopper (31) can be moved back and forth in the opposing seating fitting groove (23), and the outer end of the seating stopper (31) is seated in the seating fitting groove (23). 23) is supported in a swingable manner between a pair of seated suspension bodies (29) so as to be in an inclined state in which the engagement portion (27) of the joint 23 is unmovably engaged with the seating stopper (31) in the horizontal state. Seating stopper urging means for urging from an inclined position toward an inclined state 32) is provided,
When the outer end portion of the seating stopper (31) moves back and forth in the seating fitting groove (23) and engages with the engagement portion (27), the placement convex portion (26) fitted into the placement concave portion (26) 33) An infant chair characterized in that 33) protrudes from a pair of sitting suspension bodies (29). A footrest (16) is provided below the seating body (4) between the pair of support legs (2) so as to be vertically adjustable, and is a midway portion in the vertical direction of the pair of support legs (2), and the seating fitting groove Below (23), a plurality of stages of footrest fitting grooves (38) in the front-rear direction are provided corresponding to the left and right, one end in the front-rear direction of each footrest fitting groove (38) is opened and the one end The mounting recess (41) is provided in the part, and the engaging part (42) is provided in the other front-rear direction end of each footrest fitting groove (38),
A pair of left and right foot suspending bodies (44) projecting downward on both the left and right sides of the footrest (16) are provided in the front-rear direction, and penetrate through the pair of foot suspending bodies (44) in the left and right direction and are long plates in the left and right direction The foot rest stopper (46) is provided, and the left and right outer ends of the foot rest stopper (46) protrude outward from the pair of foot rest hanging bodies (44), and the foot rest fitting groove (38) in the front-rear direction. The footrest stopper (46) can be inserted movably back and forth from one end, and the footrest stopper (46) can be moved back and forth in the footrest fitting groove (38) whose outer end is opposed to the footrest stopper (46). A swingable support is provided between the pair of footrest hanging bodies (44) so that the outer end portion is in an inclined state in which the outer end portion comes into engagement with the engaging portion (42) of the footrest fitting groove (38) and cannot be removed. The footrest stopper (46) is urged from the horizontal state toward the inclined state. Footrest stopper biasing means (47) is provided that,
When the outer end of the footrest stopper (46) moves back and forth in the footrest fitting groove (38) and engages with the engaging portion (42), the mounting recess ( 41. The infant chair according to claim 1, characterized in that a mounting convex portion (48) fitted to 41) protrudes from the pair of footrest hanging bodies (44). The front end of each of the plurality of seating fitting grooves (23) is opened and a mounting recess (26) is provided at the front end portion, and an engagement portion (27) is provided at the rear end portion of each seating fitting groove (23). ) Is provided, and the outer end portion of the seating stopper (31) can be inserted into the seating fitting groove (23) opposed to the seating stopper (31) so as to be movable back and forth from the front side
Each of the footrest fitting grooves (38) of the plurality of stages is opened at the rear end and is provided with a mounting recess (41) at the rear end portion, and is engaged with the front end portion of each footrest fitting groove (38). A portion (42) is provided, and the outer end portion of the footrest stopper (46) can be inserted into the opposite footrest fitting groove (38) so as to be movable back and forth from the rear side. Item 3. The infant chair according to Item 2. The engaging portion (27) of each seating fitting groove (23) is formed in a triangular shape tapering backward from the rear end portion of the seating fitting groove (23), and the seating stopper (31) is formed at the rear end. With the side as a fulcrum, it is supported so as to be swingable in a horizontal state and a tilted state with a downward slope,
The engaging portion (42) of each footrest fitting groove (38) is formed in a triangular shape tapering forward from the front end portion of the footrest fitting groove (38), and the footrest stopper (46) is The infant chair according to claim 2 or 3, wherein the infant chair is swingably supported in a horizontal state and a rearwardly inclined state with the front end side as a fulcrum. A footrest (16) is provided below the seating body (4) between the pair of left and right support legs (2) so as to be vertically adjustable, and a footrest in the front-rear direction is provided in the middle in the vertical direction of the pair of support legs (2). The fitting groove (38) is provided in a plurality of stages corresponding to the left and right, one end in the front-rear direction of each footrest fitting groove (38) is opened, and a placement recess (41) is provided at the one end, An engaging portion (42) is provided at the other end in the front-rear direction of each footrest fitting groove (38),
A pair of left and right foot suspending bodies (44) projecting downward on both the left and right sides of the footrest (16) are provided in the front-rear direction, and penetrate through the pair of foot suspending bodies (44) in the left and right direction and are long plates in the left and right direction The foot rest stopper (46) is provided, and the left and right outer ends of the foot rest stopper (46) protrude outward from the pair of foot rest hanging bodies (44), and the foot rest fitting groove (38) in the front-rear direction. The footrest stopper (46) can be inserted movably back and forth from one end, and the footrest stopper (46) can be moved back and forth in the footrest fitting groove (38) whose outer end is opposed to the footrest stopper (46). A swingable support is provided between the pair of footrest hanging bodies (44) so that the outer end portion is in an inclined state in which the outer end portion comes into engagement with the engaging portion (42) of the footrest fitting groove (38) and cannot be removed. The footrest stopper (46) is urged from the horizontal state toward the inclined state. Footrest stopper biasing means (47) is provided that,
When the outer end of the footrest stopper (46) moves back and forth in the footrest fitting groove (38) and engages with the engaging portion (42), the mounting recess ( 41) An infant chair characterized in that a mounting convex part (48) fitted to 41) protrudes from a pair of footrest hanging bodies (44).

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