JP4748472B2 - Infant chair - Google Patents

Description

  The present invention relates to an infant chair used when an infant is seated in a facility such as a home or a restaurant.

For example, when an infant is seated at a meal at a home or a restaurant, the infant has a small physique, and therefore, an infant-only chair having a seat plate placed at a high position is often used. Various chairs dedicated to infants and children of this kind have been proposed, and are disclosed in, for example, Japanese Patent Application Laid-Open No. 2004-147802. In the infant high chair proposed in Japanese Patent Application Laid-Open No. 2004-147802, as shown in the accompanying drawing and FIG. 1, a seat plate 12 and a footrest 13 are placed horizontally between the left and right legs 11, The back plate 19 is fixed. Further, a protective frame 20 curved in a C-shape is disposed on the front side of the back plate 19 and above the seat plate 12, and both end sides thereof are fixed to the left and right legs 11 with screws 18. The protective frame 20 is disposed so as to surround the seated infant, and prevents the infant from falling forward or preventing the infant from falling on the chair and falling from the chair.
JP 2004-147802 A (FIG. 1)

  When an infant is seated on a high chair for infants disclosed in Japanese Patent Application Laid-Open No. 2004-147802, for example, an adult holds the infant while placing the infant's feet between the protective frame and the back plate from the upper side of the chair. It was necessary to put the infant's leg forward through the gap between the stool and the seat plate to take a sitting posture. However, at this time, for example, an infant around 1 year old cannot move his / her leg to an appropriate position at his / her will, so an adult must operate the leg while holding the infant. It was complicated. At the same time, infants can freely swing their legs, so the infant's legs and body may interfere with the protective frame, which in turn interferes with the protective frame. Similarly, the protective frame was in the way when the infant was lifted from the chair. In other words, since the protective frame is fixedly arranged on the seat plate, it is difficult to seat and hold an infant, which is inconvenient and less practical. Also, when trying to attach / detach this protective frame to / from a chair, a tool such as a screwdriver or a wrench is required, and the work must be performed using the tool while holding the protective frame by hand. It took a long time. In particular, when the protective frame is removed while the infant is sitting on a chair, the infant's clothing may be caught between members of the protective frame or legs, the body may be caught, or the protective frame may unexpectedly There is a risk of falling onto the top of the door, which is not practical.

  The present invention has been made in view of the above-described conventional problems, and its purpose is to ensure safety when an infant is seated on a chair and to attach and detach the fall prevention member to the chair body. It is an object of the present invention to provide an infant chair that can easily allow an infant to be seated on a chair or lifted from the chair. Still another object of the present invention is to provide an infant chair that can be easily and reliably attached and detached in a short time with a simple structure, and that can be safely applied to a seated infant.

In order to solve the above-described problems, the present invention regulates a chair body 16 including a backrest portion 12 and a seat plate 14 and at least the movement of the infant M in the forward fall direction when the infant M is seated on the seat plate 12. A fall prevention member 18, and the infant M is seated on the seat plate 14, and the fall prevention member 18 and the backrest 12 are arranged around the infant M with the fall prevention member 18 attached to the chair body 16. The fall prevention member 18 is detachably attached to the chair body 16 and is installed in the horizontal direction through the through holes 30 provided on the left and right sides of the backrest portion 12. It consists of a hook-shaped handle body 40, and both ends of the hook-shaped handle body 40 and both receiving portions 28 are in a locked engagement state to hold the endless enclosure, and the respective engagements are released to prevent falling. Release member 18 The fall prevention member attaching / detaching mechanism (38) can be freely changed, and the fall preventing member attaching / detaching mechanism (38) has a hook-like handle body 40 in a state in which both end sides thereof are inserted into the through holes 30. It is characterized by having a mode in which the hook-shaped handle body 40 and the through-holes 30 are brought into a lock engagement state and a mode in a lock release state by rotating the shaft around its longitudinal axis. An infant chair 10 is configured. The chair body and the fall prevention member may be made of any other material such as wood, bamboo, synthetic resin, metal, and the like. The lock engagement between the both end sides of the hook-shaped handle body and the both receiving portions may be any other configuration such as an uneven fitting or a configuration in which a stopper member is fitted to both ends. The hook-shaped handle body may have, for example, a straight line shape or a shape including a curved portion, and may have any other shape such as a circular cross section, an ellipse, or a polygon with rounded corners. For example, the through hole may have a pair of configurations on both the left and right sides of the backrest portion, and may have a configuration in which the height at which the fall prevention member is installed and the position in the front-rear direction can be changed as a plurality of pairs. The shape of the through hole may be any other shape such as a circle, an ellipse, an oval, a polygon, and the like.

The through holes 30 on either the left or right side or both sides of the backrest portion 12 include a constriction passage 32 and a plurality of holding holes 34 and 36 provided in communication with and confronting the constriction passage 32, respectively. One of the plurality of holding holes (34) is smaller than the other holding holes 36, and a large holding hole 36 is passed through one end or both ends of the saddle-shaped handle body 40, but the holding is small. Even if the through-hole main body portion 44 that does not allow the hole 34 to pass through in the penetrating direction and does not allow the constricted passage 32 to pass through in the communicating direction, and the thin-walled portion 46 that also allows the holding holes 34 and 36 to pass through the constricted passage 32 are formed. Good. For example, one of the through holes may be configured to have a constricted passage and a plurality of holding holes, and the other may be simply formed as a long hole shape. The saddle-shaped handle body may be formed, for example, by forming the penetrating main body portion to the same diameter as the handle body main body portion and forming the thin wall portion with a width smaller than that of the handle body main body portion. It is good also as forming in a diameter larger than a part and forming a thin part to the same extent as a handle body main-body part. The thin-walled portion is preferably set to a thickness that can withstand the load from the infant on the saddle-shaped handle body.

Further, at least the pair of holding holes 34 and 36 may be arranged to face each other vertically with the constriction passage 32 in between .

  Moreover, the backrest part 12 is good also as being comprised by planar view U shape which opened the front side.

  Moreover, it has the leg part 20 which supports the chair main body 16, and the structural member (18, 24, 48) containing this leg part 20 and the chair main body 16 is formed from a timber or a wooden laminated board, The upper part of the leg part 20 The side may be bent in the horizontal direction, and the bent portion 20a may be directly assembled to the lower surface side of the seat plate 14. The length of the leg of the leg may be arbitrary, and may be set in accordance with, for example, the height of a table such as a table used when eating.

  Moreover, it is good also as having the shift | offset | difference prevention member 24 erected between the crotch of the infant toward the upper direction from the seat board 14 so that the infant M sitting on the seat board 14 may be prevented from slipping down. The displacement prevention member may be configured to be integrally fixed to the seat plate with, for example, a bolt or an adhesive, or may be configured to be detachably mounted.

  According to the infant chair of the present invention, it includes a chair body including a backrest portion and a seat plate, and a fall prevention member that restricts at least the movement of the infant in the forward fall direction when the infant is seated on the seat plate. The fall prevention member and the backrest are configured to endlessly surround the infant in a state where the infant is seated on the seat plate and the fall prevention member is attached to the chair body, and the fall prevention member Since it is configured to be detachably attached to the main body, when the infant is seated or lifted from the chair, the fall prevention member is removed from the chair main body and placed in the seating space from the front side of the chair main body. You can easily sit and hold using a wide continuous space. In addition, after the infant is seated, the fall prevention member is attached to the chair body, surrounds the infant, and can be supported by the fall prevention member or the backrest portion even if the infant falls down in the front, back, left or right direction. It is possible to satisfactorily sit safely by preventing the fall from above.

  In addition, the fall prevention member is composed of a hook-like handle body that is installed in the horizontal direction via receiving parts provided on both the left and right sides of the backrest part, and both ends of the hook-like handle body and the two receiving parts are locked and engaged. By adopting a configuration that includes a fall prevention member detachment mechanism that can change the state in which the endless enclosure is held and the state in which the respective engagement is released and the fall prevention member is released, When the fall prevention member is attached to the chair body, it is in the lock engagement state, such as when the infant leans forward and a load is applied to the fall prevention member or when the infant touches the fall prevention member unnecessarily. Maintain safety for infants without detaching easily. At the same time, when removing the fall prevention member, the attachment / detachment operation can be easily performed by releasing the lock.

  In addition, the receiving part is made up of through holes provided on both sides of the backrest part, and the fall prevention member attaching / detaching mechanism pivots the saddle-shaped handle body in the state where both end sides are inserted into both through holes around its longitudinal axis. Since it is configured to freely change the lock engagement state and the lock release state between the hook-shaped handle body and both through-holes by rotating, it does not require any additional fixing members such as bolts and nuts to prevent falling The member attaching / detaching mechanism can be realized with a simple configuration with a small number of parts. Furthermore, no tools are required, and it is only necessary to pass the saddle-shaped handle body through the through-hole and simply rotate it around the longitudinal axis. At the same time, the lock engagement state and the lock release state can be changed with respect to both receiving parts, and the operator's labor is hardly applied and the operability is good.

  Moreover, since the backrest part is a structure comprised by the planar view U shape which opened the front side, since the backrest can surround the infant's right and left and back continuously, the fall prevention member is attached. Even in the absence, the seated infant can be prevented from falling to the left and right sides and to the rear, and safety can be ensured when the fall prevention member is attached. Furthermore, for example, even if the fall prevention member is configured in a simple shape such as a straight line, an endless enclosure can be realized, and the design of the fall prevention member attaching / detaching mechanism can be easily performed.

  The through-holes on either the left or right side or both sides of the backrest portion include a constriction passage and a plurality of holding holes provided to communicate with and confront each constriction passage, and one of the plurality of holding holes. Is smaller than the other holding holes. At one or both ends of the saddle-shaped handle body, the large holding hole is passed through, but the small holding hole is not passed in the penetration direction. With a structure in which the through-body part that does not pass through the communication direction and the thin-walled part through which the holding hole and the constriction passage pass are formed, the fall prevention member detachment mechanism can be more reliably dropped without complicating the structure. The lock engagement state of the prevention member can be realized, and even if the infant is operated unnecessarily or the limb or body hits, the fall prevention member is not easily detached, and high safety of the infant can be ensured. At the same time, for an adult who operates the fall prevention member, the attachment / detachment operation can be performed with a relatively simple operation, and the operability can be maintained.

  In addition, at least a pair of holding holes are arranged so as to be opposed to each other vertically with the constriction passage interposed therebetween. For example, the lower holding hole can be made small and the weight of the hook-shaped handle body can be easily used. It can be moved to the lower holding hole to maintain the arrangement in the holding hole, while the upper holding hole needs to be held and aligned by hand against its own weight. As a configuration in which the separation operation is slightly complicated while being simple, it is possible to easily realize a configuration that is not easily separated by an undue operation of the infant while maintaining good operability. In addition, the direction of communication of the constricted passage and the direction in which the load is applied when the infant leans forward are almost perpendicular to each other, so that when the load is applied, the baby does not move between the holding holes and the infant's leaning motion is stable. I can support it.

  The leg member supporting the chair body has a leg portion, and the structural member including the leg body and the chair body is formed of wood or a wooden laminate, and the upper side of the leg portion is bent in the horizontal direction. Since the seat is directly assembled to the lower surface side of the seat plate, for example, the chair body can be attached to the leg even in a configuration that does not require other auxiliary members such as joints and metal fittings for connecting the chair body and the leg. The connecting structure can be stably supported, the number of parts can be reduced, and the entire chair can be easily manufactured without increasing the weight. Furthermore, by using wood or the like for almost all the constituent members, all the manufacturing processes including processing and assembly from materials can be unified in the woodworking place, and production management can be easily performed. In addition, an infant chair can be manufactured that has the effects of being unique to wood, for example, being relatively lightweight, easy to process, obtaining a natural design feeling of wood grain, and being warm to the touch.

  In addition, the seat plate and the fall prevention member are configured to have a shift prevention member standing between the crotch of the infant facing upward from the seat plate so as to prevent the infant sitting on the seat plate from falling down. It is possible to prevent the infant from sliding down from the gap, and maintain the infant's sitting posture or maintain the infant's safety.

  Hereinafter, embodiments of the infant chair of the present invention will be described with reference to the accompanying drawings. The infant chair of the present invention has a weak muscle strength and a heavy head, so that when an infant who is prone to wobble in the sitting position is seated on the chair, a fall prevention member is attached to the chair body to prevent the infant from falling from the chair. It is an infant chair that can be safely seated and can be easily attached to the chair body so that the fall prevention member can be detachably attached and the infant can be seated on the chair or lifted from the chair. .

1 is a perspective explanatory view of the infant chair according to the present embodiment, FIG. 2 is a front view of the infant chair of FIG. 1, and FIG. 3 is a plan view in which a part of FIG. 1 is omitted. FIG. 4 is an exploded perspective view of the infant chair according to the present embodiment. In FIG. 4, a part of the end portion of the fall prevention member 18 is notched for explanation. As shown in FIGS. 1 and 2, in this embodiment, the infant chair 10 includes a chair body 16 including a backrest portion 12 and a seat plate 14, and a fall prevention member 18 that is detachably attached to the chair body 16. And including. In this embodiment, the chair main body 16 is supported is arranged at a certain height from the floor surface by legs 20. In the present embodiment, in FIG. 2, the left and right sides are the left and right sides of the infant chair 10, and the front side of the page in FIG. 2 is the front and the back side of the page is the back.

  In the present embodiment, the leg portion 20 includes four legs 201, 202, 203, and 204 that extend vertically to stably support the chair body 16, as shown in FIGS. 1, 3, and 4. Each of the legs 201 to 204 is provided, for example, by bending the upper end side of an elongated laminated plate formed by laminating and compressing and bonding strip-shaped wooden veneers into a substantially L shape in the horizontal direction. The L-shaped tips of the legs 201 to 204 are combined and combined in an X shape in plan view. In the present embodiment, for example, the bolts 21a and 21b are placed in a state where the seat plate 14 is directly placed on the upper surface side of the bent portion 20a that is bent horizontally on the upper side of the leg portion 20. It is connected and fixed via.

  As shown in FIGS. 1 and 3, the seat plate 14 of the chair body 16 is made of, for example, a laminated plate obtained by laminating and compressing wooden single plates, and is formed of a flat plate having a tongue-like shape in plan view, and has a linear edge. The portion is arranged with the front side facing the arcuate side toward the rear side. For example, the seat plate 14 is set to have a wide enough area so that a clearance is formed around the torso MB of the infant when the infant is seated. As shown in FIG. 4, an insertion hole 22 having a horizontally long circular shape in plan view is penetrated in the vertical direction at the center position on the left and right sides of the seat plate 14, and the baby sitting on the seat plate 14. A misalignment preventing member 24 for preventing M from slipping is mounted. In the present embodiment, the lower edge portion of the insertion hole 22 is formed with a concave step edge portion 23 that is wider than the insertion hole 22 in a stepped shape.

  FIG. 5 is a sectional view taken along line AA in FIG. As shown in FIGS. 4 and 5, in this embodiment, the slip prevention member 24 is erected so as to be disposed between the crotch of the infant from the seating surface of the seat plate 14 upward. In the present embodiment, the displacement preventing member 24 is formed of a tongue-like wooden plate member, and the transverse cross-sectional shape is provided in the shape of a horizontally long circular shape in the same plan view as the insertion hole 22 of the seat plate 14. Inserted and installed. In the present embodiment, a flat base plate 26 that is wider than the main body portion is integrally fixed to the lower end side of the deviation preventing member 24. The base plate 26 of the slip prevention member 24 is disposed in a recessed shape in the recessed step edge 23 of the insertion hole 22 so that the lower surface of the base plate 26 and the lower surface of the seat plate 14 are substantially flush with each other. Has been. In the present embodiment, the slip prevention member 24 is inserted into the insertion hole 22 from the lower side of the seat plate 14 and its upper side protrudes upward from the seat surface of the seat plate 14 to some extent, for example, about 7 to 8 cm. It is installed with. At this time, the base plate 26 of the deviation preventing member 24 is supported by preventing the upper side of the deviation preventing member 24 from being pulled out and the bent portion 20a of the leg portion 20 being applied to the lower surface side from below. It has become so. That is, in this embodiment, the slip prevention member 24 is supported in a state of being received from below using the bent portion 20a of the leg portion 20 when the leg portion 20 is connected to the lower surface side of the seat plate 14. Yes.

  As shown in FIGS. 1 and 3, the backrest portion 12 of the chair body 16 is erected along the periphery of the arc-shaped edge portion of the seat plate with the front side wide open in the present embodiment. In the present embodiment, the backrest portion 12 is configured by, for example, a laminated plate formed by laminating and compressing and bonding wooden veneers in a U shape so as to open the front side. The seat plate is surrounded by a U-shaped wall surface while continuously opening the front side and the upper side. In the present embodiment, the backrest 12 is integrally fixed with an arbitrary fixing means such as a bolt or an adhesive, for example, with the lower end edge being applied along the edge of the seat plate 14. The backrest 12 is formed on the left and right sides and the back side of the infant seated on the seat plate 14 so as to be continuous to the left and right sides and the rear side of the seated infant even when the fall prevention member 18 is not attached. The fall can be prevented and the safety of the infant at the time of attaching the fall prevention member can be ensured.

A receiving portion 28 for detachably mounting the fall prevention member 18 on the chair body 16 is integrally provided at a position closer to the front of the opposing side wall surfaces on the left and right sides of the backrest portion 12 . In the present embodiment, the receiving portion 28 is configured to engage with both end sides of a later-described fall prevention member 18, and the receiving portion 28 and the fall prevention member 18 are configured such that the fall prevention member is in contact with the receiving portion 28. A detachable mechanism 38 that can be freely changed between a state in which the lock is engaged so as not to move and a state in which the respective engagements are released and the fall prevention member is released is configured. In this embodiment, as shown in FIGS. 6 and 7, the receiving portion 28 includes a through hole 30 that is formed by penetrating the left and right side wall portions of the backrest portion in the lateral direction, and falls into the through hole. The both end sides of the prevention member 18 are penetrated and constructed. In the present embodiment, the through hole 30 includes a constriction passage 32 and two holding holes 34 and 36 provided to communicate with the constriction passage 32 and face each other. In the present embodiment, the holding holes 34 and 36 are formed in a substantially circular shape, and are opposed to each other up and down across the constricted passage 32. Further, the lower holding hole 34 is provided with a smaller diameter than the upper holding hole 36. In the present embodiment, the constricted passage 32 includes a passage having a constant width that allows the two holding holes 34 and 36 to communicate with each other in a straight line.

As shown in FIGS. 1, 3, and 5, the fall prevention member 18 is a fall prevention means that regulates at least the movement of the infant M in the forward fall direction when the infant is seated on the seat plate 14. In this embodiment, the fall prevention member 18 is detachably attached to the chair body 16, and when the infant M is seated, the fall prevention member 18 is removed from the chair body 16 and the front of the chair body 16. By utilizing the space that continues from the side on the seat plate, the infant can be easily seated on the seat plate 14 from the state in which the adult has lifted it up. In a state where the fall prevention member 18 is attached to the chair body 16, the fall prevention member 18 is arranged around the abdomen of the infant and surrounds the infant endlessly together with the fall prevention member and the backrest 12. Even if the infant M falls down in any of the front, rear, left, and right directions, it will lean against the fall prevention member or the backrest, and the infant can be well prevented from falling off the chair. In the present embodiment, the fall prevention member 18 includes a hook-like handle body 40 that is horizontally installed on the receiving portion 28 of the backrest portion. The hook-shaped handle body 40 is made of, for example, a wooden straight rod member having a circular cross section. Since the hook-shaped handle body is provided in the shape of a straight rod, it is easy to process and can be easily installed by simply penetrating through the through holes 30 of the both receiving portions 28 from the lateral direction. Can do.

  As shown in FIG. 7, a penetrating main body portion 44 that engages with both through holes and a thin portion 46 are formed on both end sides of the saddle-shaped handle body 40. In the present embodiment, the thin-walled portion 46 is formed at a position corresponding to the through-hole 30 in a state where the hook-shaped handle body 40 is installed, and the through-body portion 44 is formed on both sides of the thin-walled portion 46. The penetrating main body portion 44 is formed with the same cross-sectional area as the handle main body portion of the bowl-shaped handle body 40, a portion 44a formed continuously on the handle main body side, and a portion 44b formed on the end portion outside the thin wall portion. Including. As shown in FIG. 6A, the diameter of the penetrating main body 44 (the saddle-shaped handle body 40) is set larger than that of the lower small-diameter holding hole 34, and the upper large-diameter holding is held. The diameter is set smaller than that of the hole 36. That is, the hook-shaped handle body 40 can freely pass through the upper holding hole 36 in the penetrating direction, while the lower holding hole 34 is restricted from passing in the penetrating direction. ing. In this embodiment, the thin-walled portion 46 is formed by, for example, shaving so as to be inserted through portions corresponding to the through holes on both ends of the wooden bowl-shaped handle body. The shape is formed in a horizontally long rectangular shape. The thin portion 46 may be, for example, an elliptical cross section, an oval cross section, or any other arbitrary shape. The length in the short side direction of the thin portion 46 is set slightly narrower than the width of the constricted passage 32, and the length in the long side direction of the thin portion 46 is set larger than the width of the constricted passage 32. . The thin-walled portion 46 is rotationally converted in the long side direction by rotation around the longitudinal axis of the bowl-shaped handle body 40, and when the thin-walled portion 46 is in the vertically long state, the thin-walled portion 46 freely passes through the constricted passage 32 in the communication direction and is opposed. The position can be freely changed between the upper holding hole 36 and the lower holding hole 34 (see FIGS. 6-2 and 6-3). On the other hand, when the thin-walled portion 46 is in a horizontally long state, it cannot pass through the constricted passage and is restricted from moving (see FIG. 6A). In other words, in the present embodiment, the detaching mechanism 38 includes the penetrating body portion 44 and the thin portion 46 of the bowl-shaped handle body 40, the constricted passage 32 of the through hole 30, and the holding holes 34 and 36. The hook-like handle body 40 in a state where both end sides are inserted into the holes 30 are operated to rotate around the longitudinal axis thereof, whereby the lock-engaged state between the hook-like handle body 40 and the through-hole 30 and the unlocked state And can be changed freely.

  The saddle-shaped handle body 40 configured as described above penetrates the holding hole 36 on the upper side of the through hole in the lateral direction and is laid on the backrest part, through the thin part 46 on both ends and the constriction passage 32 of the through hole. Then, the entire hook-shaped handle body is moved downward while utilizing its own weight and moved to the position of the lower holding hole 34. Then, the lock handle body 40 is rotated by, for example, about 90 degrees to restrict the movement of the hook handle body 40 in the penetrating direction of the holding hole and the movement of the constricted passage 32 in the communication direction. Combine and hold an endless enclosure. With this configuration, while maintaining a simple configuration, it is easy for an adult to operate, but the saddle-shaped handle body does not easily disengage in an infrequent operation by an infant and maintains the safety of the infant. it can.

  As shown in FIGS. 1, 4, and 5, in the present embodiment, a footrest portion 48 is provided for placing a foot that floats in the air of an infant M seated on the seat plate 14. The footrest portion 48 is, for example, a legrest 50 formed in the shape of a straight rod having a circular cross section and arranged in the left-right direction, and a support bent in a substantially J shape from the lower side of the seat plate 14. Plate 52. In the present embodiment, for example, the footrest 50 is formed of a wooden rod, the support plate 52 is formed of a wooden laminated plate, and the footrest 50 is integrally formed on the J-shaped tip side of the support plate 52. It is assembled. In the present embodiment, the upper end side of the support plate 52 is bent in the horizontal direction to form a connecting flat plate portion 52a. The footrest portion 48 is integrally fixed with a bolt 21b that penetrates the bent portion 20a of the leg portion in a state where the connecting flat plate portion 52a of the support plate 52 is applied to the lower surface side of the bent portion 20a of the leg portion. .

In the infant chair 10 of the present embodiment, as described above, each component of the infant chair 10, for example, the chair body 16, the leg portion 20, the fall prevention member 18, the slip prevention member 24, the footrest portion 48, etc. are made of wood. Has been. In particular, the connecting structure of the leg portion 20 and the seat plate 14 can be directly assembled to the lower surface side of the seat plate via the bent portion 20a of the leg portion 20 to ensure support strength and to wobble. A stable connection configuration can be realized. Further, the footrest portion 48 is commonly connected to the connecting bolt 21b of the leg portion 20 and connected together, and the displacement preventing member 24 is supported and connected using the bent portion 20a of the leg portion 20. The chair can be manufactured with a simple configuration with a small number of parts without using a connecting auxiliary metal fitting in addition to the above components. Furthermore, for example, it is possible to unify manufacturing processes including processes such as cutting, deformation processing, and assembly of wood and laminates at a woodworking plant, thereby simplifying production management. Further, the timber-specific, for example, a relatively light weight, machining easily, Ru obtained design sense of natural feeling by grain, good chair utilizing the effect of such skin is well warm production it can.

  Next, the operation of the infant chair 10 according to this embodiment will be described. When an infant is seated on the infant chair 10, the infant is placed from the front side of the infant chair with the saddle-shaped handle body removed. At this time, since the front side of the chair main body is wide open, there is nothing that hinders the operation of placing the infant and it is easy to place the infant easily. In a state where the infant is seated on the chair, the saddle-shaped handle body is passed through the holding hole on the upper side of the through hole of the receiving portion from the outside of the backrest portion in the lateral direction. The thin-walled portions on both sides of the saddle-shaped handle body are erected in a state where the thin-walled portions are arranged at the positions of the through holes, and the periphery of the infant is surrounded endlessly. Then, while turning the hook-shaped handle body around its longitudinal axis, the thin-walled portion is in the vertically long state (see FIG. 6-3), and the thin-walled portion is passed through the constriction passage while moving the entire hook-shaped handle downward. The handle body is arranged at the position of the lower through hole. Since the penetrating main body portion of the hook-shaped handle body has a diameter larger than that of the lower through-hole, movement in the lateral direction is restricted. In this state, when the hook-shaped handle body is rotated by about 90 degrees, the thin portions on both ends become horizontally long, and the movement of the hook-shaped handle body in the penetrating direction and the movement of the constricted passage are both restricted. As a result, the saddle-shaped handle body is in a locked engagement state with the receiving portion, the endless enclosure is held, and the infant is supported by the saddle-shaped handle body or the backrest portion even when leaning in either the front, back, left or right direction. You can sit safely. This lock engagement operation allows an adult to smoothly lock and engage the hook-shaped handle body only by relatively simple operations such as insertion and rotation of the holding hole of the hook-shaped handle body and the constricted passage. On the other hand, even if the infant simply touches the fall prevention member or manipulates it unnecessarily, it does not come off easily, and safety can be maintained. When removing the hook-shaped handle body, the hook-shaped handle body is rotated again by about 90 degrees so that the thin wall portion is in the vertically long state. The whole hook-shaped handle body is lifted upward, the thin portion is lifted and moved to the upper holding hole through the constricted passage, and the hook-shaped handle body is pulled out in the lateral direction while being aligned with the upper holding hole and removed. By detaching the saddle-shaped handle body, the infant can be easily held in the same manner as when the infant is seated.

  The infant chair of the present invention described above is not limited to the configuration of only the above-described embodiment, and may be arbitrarily modified without departing from the essence of the present invention described in the claims. .

  The infant chair of the present invention is used as a chair on which an infant is seated, for example, when the infant eats or drinks at home or in a restaurant.

It is a perspective view of the infant chair concerning an embodiment. It is a front view of the infant chair of FIG. It is a top view of the infant chair of FIG. It is a disassembled perspective explanatory drawing of the infant chair of FIG. It is the sectional view on the AA line of FIG. It is a figure which shows the lock engagement state of the edge part of a hook-shaped handle body, and a through-hole, Comprising: It is explanatory drawing which showed the thin part part longitudinally. It is action | operation explanatory drawing of the state which axially rotated the bowl-shaped handle body from the state of FIGS. It is action | operation explanatory drawing of the state which moved the holding hole via the constriction channel | path from the state of FIGS. 6-2. FIG. 2 is a partially enlarged view of an end portion and a through hole of the bowl-shaped handle portion of FIG. 1.

DESCRIPTION OF SYMBOLS 10 Infant chair 12 Backrest part 14 Seat plate 16 Chair main body 18 Fall prevention member 20 Leg part 24 Deviation prevention member 28 Receiving part 30 Through-hole 32 Constriction channel | path 34,36 Holding hole 38 Desorption mechanism 40 The hook-shaped handle body 44 Through-body part 46 Thin part

Claims (6)

A chair body including a backrest and a seat plate;
A fall-preventing member that regulates at least the movement of the infant in the forward fall direction when the infant is seated on the seat plate,
An infant is seated on a seat plate, and the fall prevention member and the backrest portion are configured to endlessly surround the infant with the fall prevention member attached to the chair body,
The fall-preventing member is detachably attached to the chair body, and comprises a saddle- like handle body that is laid horizontally through through holes provided on both the left and right sides of the backrest portion,
Changed between a state where both ends of the hook-shaped handle body and both through-holes are in a locked engagement state to hold the endless enclosure, and a state where each engagement is released and the hook-shaped handle body is released Equipped with a fall prevention member detachable mechanism that can be freely
The fall prevention member attaching / detaching mechanism locks the hook-shaped handle body and the two through-holes by rotating the hook-shaped handle body around the longitudinal axis of the hook-shaped handle body in a state where both end sides are inserted into the through holes. An infant chair characterized by having a state to be in a state and a state to be in a lock release state in a changeable manner . The through-holes on either the left or right side or both sides of the backrest portion include a constriction passage and a plurality of holding holes provided to face each other in communication with the constriction passage,
One of the plurality of holding holes is smaller than the other holding holes,
A penetrating main body that passes through a large holding hole in a penetrating manner at one end or both ends of the saddle-shaped handle body but does not allow a small holding hole to pass through in the penetrating direction, and does not allow the constricted passage to pass in the communicating direction; claim 1, wherein the infant chair of the thin portion, characterized in that has been formed in which the holding hole be constricted passage also passed. The infant chair according to claim 2, wherein at least the pair of holding holes are vertically opposed to each other across the constriction passage. The infant chair according to any one of claims 1 to 3, wherein the backrest portion is formed in a U-shape in plan view with an opening on the front side. It has legs that support the chair body,
The structural member including the leg portion and the chair body is formed from wood or a wooden laminate,
The infant chair according to any one of claims 1 to 4 , wherein an upper side of the leg portion is bent in a horizontal direction, and the bent portion is directly assembled to the lower surface side of the seat plate. . To any one of claims 1, characterized in that it has a displacement preventing member which is erected from the seat plate upwardly between the crotch of the baby so as to prevent slipping down of the infant seated on the seat plate 5 The listed infant chair.

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