Childcare-related appliance

Abstract

The present invention relates to a child-rearing related device capable of adjusting a position or shape of a movable portion with a simple structure. The adjustment mechanism (3) of the child-rearing related device of the present invention is provided with a cord (4) linking a fixed portion and the movable portion, a reel (80) rotatable in both directions, a rotation operation member (40) for operating the rotation of the reel (80), a motion transmission portion for transmitting the rotation motion of the rotation operation member (40) to the reel (80), and a motion separation portion for not transmitting the rotation motion of the reel (80) to the reel (80).

Description

Technical Field

[0001] This invention relates to childcare-related appliances, and more particularly to childcare-related appliances having a fixed part, a movable part that can move relative to the fixed part, and an adjustment mechanism for adjusting the position or shape of the movable part. Background Technology

[0002] Generally speaking, childcare-related equipment such as child seats, strollers, bunk beds, and infant carriers are equipped with movable parts that can change position relative to the fixed parts.

[0003] For example, Japanese Patent Application Publication No. 2008-290587 (Patent Document 1) discloses a child seat that allows for shoulder strap length adjustment to accommodate a child's body. This child seat allows for shoulder strap length adjustment simply by pulling the front end of the shoulder strap, located on the back side of the seat, forward.

[0004] For example, Japanese Utility Model Application Publication No. 7-4248 (Patent Document 2) discloses a stroller in which a strap is connected to a push bar and the length of the strap is adjusted by a buckle installed on the back of the backrest, thereby allowing the tilt angle to be adjusted.

[0005] For example, Japanese Patent Application Publication No. 2013-162974 (Patent Document 3) discloses an infant carrying device that can be used for both vertical and horizontal holding. This infant carrying device is equipped with shoulder straps that hang on the parents' shoulders, waist straps that hang on the parents' waists, and connecting straps that connect the child and the parents, and each strap is designed to be adjustable in length.

[0006] [Existing Technical Documents]

[0007] [Patent Literature]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 2008-290587

[0009] [Patent Document 2] Japanese Patent Publication No. 7-4248

[0010] [Patent Document 3] Japanese Patent Application Publication No. 2013-162974. Summary of the Invention

[0011] [The problem that the invention aims to solve]

[0012] The childcare-related devices described in Patent Documents 1 to 3 require both hands to adjust the length and tilt angle of body restraint straps such as shoulder straps, and have complex structures.

[0013] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a childcare-related device that can adjust the position or shape of the movable part with a simple structure.

[0014] [Methods for solving the problem]

[0015] To achieve this objective, one embodiment of the childcare-related appliance of the present invention includes: a fixed part; a movable part that is movable relative to the fixed part; and an adjustment mechanism for adjusting the position or shape of the movable part; wherein the adjustment mechanism includes: a rope that connects the fixed part and the movable part; a spool that is rotatable in both directions, and the position or shape of the movable part is changed by winding and feeding the rope; a one-way clutch mechanism that allows the spool to rotate in the winding direction of the rope and prohibits the rotation of the spool in the feeding direction of the rope; and a locking release member that releases the rotation prohibition state of the spool based on the one-way clutch mechanism, allowing the spool to rotate freely.

[0016] Preferably, the adjustment mechanism also includes a rotary operating component for operating the rotation of the spool.

[0017] Preferably, the adjusting mechanism has a force-applying component that applies force to the winding axis of the rope in the winding direction.

[0018] Preferably, the adjusting mechanism further includes a retainer that rotatably supports the spool, and the one-way clutch mechanism includes: engaging teeth disposed on either the spool or the retainer; and engaging pawl mounted on the other of the spool or the retainer, capable of displacement between an engaged position engaging with either of the spool or the retainer and a non-engaged position not engaging with either of the spool or the retainer; the locking release member includes an operating part that operates to bring the engaging pawl to the non-engaged position.

[0019] Preferably, the engaging teeth are disposed on the outer peripheral surface of the spool extending parallel to the axis of rotation of the spool, and the engaging pawls are disposed on the retainer and displaced in a direction orthogonal to the engaging teeth. The locking release component releases the rotation restriction state of the spool by moving in a direction orthogonal to the axis of rotation of the spool.

[0020] Preferably, the engaging teeth are arranged on the retainer in a manner that runs circumferentially along the spool, and the engaging claws are arranged on the spool and displaced in the horizontal direction relative to the engaging teeth. The locking release component releases the rotation restriction state of the spool by moving circumferentially along the spool.

[0021] Preferably, the engaging teeth are disposed on the upper or lower surface of the spool extending in a direction orthogonal to the axis of rotation of the spool, and the engaging pawls are disposed on the retainer and displaced in a direction orthogonal to the engaging teeth. The locking release component releases the rotation restriction state of the spool by moving in a direction parallel to the axis of rotation of the spool.

[0022] Preferably, the childcare-related equipment is a child seat, the fixed part is the seat, and the movable part is the body restraint strap installed on the seat.

[0023] Preferably, the childcare-related equipment is a child seat, the fixed part is the main body of the child seat, and the movable part is an ISOFIX installed on the main body of the child seat.

[0024] Other types of childcare-related appliances include: a main body; an extension extending from the main body; and an adjustment mechanism for adjusting the position or shape of the extension, wherein the adjustment mechanism includes: a rope, one end of which is connected to the main body and the other end of which is held in the extension; a spool that can rotate freely in both directions, changing the position or shape of the extension by winding and feeding the rope; and a rotation locking mechanism that prevents the rotation of the spool.

[0025] Preferably, the childcare-related equipment is a childcare equipment with a seat, the main body of which is a seat for receiving a child, and the extension is a pair of shoulder straps that extend from the seat and restrain the child's shoulders. A pair of ropes are provided, and the pair of ropes are respectively held at the ends of the pair of shoulder straps.

[0026] Preferably, the childcare-related equipment is a childcare equipment with a seat, the main body of which is a seat for receiving the child, the extension of which is a crotch strap that extends from the seat and restrains the child's crotch, and the rope is held at the end of the crotch strap.

[0027] The preferred childcare-related equipment is a child car seat, with the main body being the child car seat body and the extension being an ISOFIX device that extends from the child car seat body body toward the rear.

[0028] Preferably, the childcare-related equipment is an infant cradle, the main body of which is the main body of the infant cradle, and the extension is a movable part that extends from the main body of the infant cradle.

[0029] Preferably, the main body of the infant carrier includes a parent side shoulder strap that wraps around the parent's shoulder and a parent side waist belt that wraps around the parent's waist, with the extension portion extending from the parent side shoulder strap or the parent side waist belt.

[0030] Preferably, the main body of the infant carrier includes a child support section that supports the child's body, and the extension section is a part that extends from the child support section.

[0031] Preferably, it also includes a locking release component that releases the rotation restriction state of the spool based on the rotation locking mechanism, allowing the spool to rotate freely.

[0032] Another type of childcare-related appliance includes: a fixed part; a movable part that can move relative to the fixed part; and an adjustment mechanism for adjusting the position or shape of the movable part; wherein the adjustment mechanism includes: a rope that connects the fixed part and the movable part; a scroll that can rotate freely in both directions, and the position or shape of the movable part can be changed by winding and feeding the rope; a rotation operation member for operating the rotation of the scroll; a motion transmission member that transmits the rotational motion of the rotation operation member to the scroll; and a motion separation member that does not transmit the rotational motion of the scroll to the scroll.

[0033] Preferably, the rotating operating component typically transmits rotational motion to the reel via the motion transmission section, and when a certain load is exceeded, it does not transmit rotational motion to the reel via the motion separation section.

[0034] Preferably, when the rotating operating component rotates in one direction, it transmits the rotational motion to the reel via the motion transmission part, and when it rotates in another direction, it does not transmit the rotational motion to the reel via the motion separation part.

[0035] Preferably, the reel includes a reel body for winding and feeding the rope, and a moving part disposed between the reel body and the rotating operating member. The motion transmission part or motion separation part includes a drive gear part disposed on the rotating operating member and a driven gear part disposed on the moving part.

[0036] Preferably, a force is applied to the moving part in the direction toward the rotating operating part.

[0037] Preferably, the drive gear section includes a first inclined portion that is inclined from the spool toward the rotating operating member toward the winding direction and a second inclined portion that is inclined from the spool toward the rotating operating member toward the feeding direction, wherein the angle of the first inclined portion relative to the winding direction is smaller than the angle of the second inclined portion relative to the feeding direction.

[0038] Another type of childcare-related appliance includes: a fixed part; a movable part that can move relative to the fixed part and can move downward in the vertical direction; and an adjustment mechanism for adjusting the position or shape of the movable part; wherein the adjustment mechanism includes: a rope that connects the fixed part and the movable part; a reel that can rotate freely in both directions, and the position or shape of the movable part can be changed by winding and feeding the rope; a force-applying member that applies force in a way that causes the reel to rotate in the winding direction of the rope; and a locking member that prevents the rotation of the reel; and the force of the force-applying member is selected in a way that is smaller than the force required for the movable part to move downward in the vertical direction.

[0039] Preferably, it also includes a one-way clutch mechanism that allows the winding axis to rotate in the winding direction of the rope and prohibits the winding axis to rotate in the feeding direction of the rope.

[0040] Preferably, the locking component includes a reel locking claw that is displaceable between a first position where it engages with a portion that rotates with the reel to prevent rotation of the reel, and a second position where it disengages from the portion that rotates with the reel to allow rotation of the reel.

[0041] Preferably, it also includes a locking release component that brings the locking component to a second position, allowing the reel to rotate freely.

[0042] Preferably, the force-applying component is a spiral spring, with one end of the spiral spring fixed to the spool and the other end fixed to the housing of the adjusting mechanism.

[0043] Preferably, the childcare-related equipment is a child seat, the fixed part is the seat, and the movable part is the body restraint strap installed on the seat.

[0044] [Invention Effects]

[0045] According to the present invention, a childcare-related appliance is provided in which the position or shape of the movable part can be adjusted with a simple structure. Attached Figure Description

[0046] Figure 1 Part (A) is a perspective view of a child seat according to an embodiment of the present invention, part (B) is a perspective view of the adjustment mechanism and ISOFIX removed, part (C) is a cross-sectional view showing the state of the ISOFIX being pulled out, and part (D) is a cross-sectional view showing the state of the ISOFIX being pressed in.

[0047] Figure 2 Part (A) is a perspective view of a child seat according to other embodiments, part (B) is a perspective view showing the state of removing the adjustment mechanism, shoulder strap and waist belt and pulling out the shoulder strap, and part (C) is a perspective view showing the state of rolling up the shoulder strap from the state shown in part (B).

[0048] Figure 3 Part (A) is a perspective view of a child seat according to another embodiment, part (B) is a schematic cross-sectional view of a child seat in a restrained state, and part (C) is a schematic cross-sectional view of a child seat in an open state.

[0049] Figure 4 This diagram illustrates the adjustment mechanism in Embodiment 1 of the present invention. Part (A) is a perspective view, part (B) is a top view, and part (C) is a perspective view. Figure 4 A cross-sectional view of section (B) observed along line IVc.

[0050] Figure 5 This is an exploded perspective view of the adjustment mechanism according to Embodiment 1 of the present invention.

[0051] Figure 6 This is a top view showing the removal of the locking release component, locking component, reel, and divider. Part (A) shows the state where the locking release component is not operated, and part (B) shows the state where the locking release component is operated.

[0052] Figure 7 From Figure 4 A cross-sectional view observed along line VII of section (C).

[0053] Figure 8 Part (A) is a perspective view showing the removal of the rotating operating component and the moving component; Part (B) is a schematic diagram of the drive gear of the rotating operating component and the driven gear of the moving component; Part (C) is a perspective view of the rotating operating component viewed from the back; and Part (D) is an enlarged view of the drive gear part in Part (C).

[0054] Figure 9 This is a cross-sectional view showing the rotating operating component, the moving component, and the linkage component removed. Part (A) shows the state in which the motion transmission part is functioning, and part (B) shows the state in which the motion separation part is functioning.

[0055] Figure 10 This is a cross-sectional view showing a modified example of the adjusting mechanism.

[0056] Figure 11 This is a schematic diagram showing other variations of the adjustment mechanism. Part (A) shows the state where the locking release component is not operated, and part (B) shows the state where the locking release component is operated.

[0057] Figure 12 This is a diagram illustrating the adjustment mechanism in Embodiment 2 of the present invention. Part (A) is a perspective view, part (B) is a top view, and part (C) is a perspective view. Figure 4 A cross-sectional view observed along line XIIc of part (B).

[0058] Figure 13 This is an exploded perspective view of the adjustment mechanism according to Embodiment 2 of the present invention.

[0059] Figure 14 This is a cross-sectional view of the adjustment mechanism according to Embodiment 2 of the present invention. Part (A) shows the state where the locking release component is not operated, and part (B) shows the state where the locking release component is operated.

[0060] Figure 15 In the image, (A) is a perspective view showing the removal of the scroll and locking mechanism, (B) is a schematic diagram showing the one-way locking mechanism, and (C) is a perspective view of the scroll viewed from the back.

[0061] Figure 16 From Figure 12A cross-sectional view observed along the XVI line of section (C).

[0062] Figure 17 In the diagram, (A) is a perspective view showing the removal of the rotating and moving parts, (B) is a schematic diagram of the drive gear of the rotating part and the driven gear of the moving part, (C) is a perspective view of the rotating part from the back, and (D) is an enlarged view of the drive gear in (C).

[0063] Figure 18 This is a cross-sectional view showing the removal of the rotating operating component, the moving component, and the linkage component. Part (A) shows the state in which the motion transmission part is functioning, and part (B) shows the state in which the motion separation part is functioning.

[0064] Figure 19 This is a cross-sectional view showing a modified example of the adjusting mechanism.

[0065] Figure 20 This is a cross-sectional view showing other variations of the adjusting mechanism.

[0066] Figure 21 This is a diagram showing the adjustment mechanism in Embodiment 3 of the present invention. Part (A) is a perspective view, part (B) is a top view, and part (C) is a cross-sectional view viewed from line XXIc of part (B).

[0067] Figure 22 This is an exploded perspective view of the adjustment mechanism according to Embodiment 3 of the present invention.

[0068] Figure 23 This is a top view of the upper cage.

[0069] Figure 24 Part (A) is a perspective view showing the rotating operating component, the moving component, and the connecting rod component; Part (B) is a schematic diagram of the driving gear of the rotating operating component and the driven gear of the moving component; and Part (C) is a perspective view of the rotating operating component viewed from the rear.

[0070] Figure 25 Part (A) is a perspective view showing the linkage and locking components removed; parts (B) to (D) are... Figure 21 A partial cross-sectional view observed along the XXV line of section (C), showing the state in which the connecting rod assembly is rotated.

[0071] Figure 26 From Figure 21 The partial sectional view observed along line XXVI in section (C), and sections (A) to (D) show the state in which the connecting rod assembly rotates.

[0072] Figure 27This is a diagram showing the state of the lower retainer of the adjustment mechanism after it has been removed. Part (A) is a bottom perspective view, and part (B) is a top view.

[0073] Figure 28 Part (A) is a perspective view showing the rotating operating component, the moving component, the force-applying component, and the connecting rod component. Part (B) is a schematic diagram of the drive gear of the rotating operating component and the driven gear of the moving component. Part (C) is a perspective view of the rotating operating component viewed from the rear.

[0074] Figure 29 It is a cross-sectional view showing the rotating operating part, the moving part, the force-applying part, and the connecting rod part. Part (A) shows the state in which the motion transmission part is functioning, and part (B) shows the state in which the motion separation part is functioning.

[0075] Figure 30 This is a top view of the locking / unlocking component.

[0076] Figure 31 Part (A) indicates the state where the locking release component is not operated, and part (B) indicates the state where the locking release component is operated.

[0077] Figure 32 The diagram shows a variation of the adjustment mechanism. Part (A) is a perspective view, part (B) is a schematic diagram of the drive gear of the rotating operating component and the driven gear of the moving component, part (C) shows the state in which the motion transmission part is functioning, and part (D) shows the state in which the motion separation part is functioning.

[0078] Figure 33 This is an exploded perspective view of the adjustment mechanism according to Embodiment 4 of the present invention.

[0079] Figure 34 Parts (A) to (D) are schematic diagrams illustrating the operation of the child seat according to Embodiment 4 of the present invention.

[0080] Explanation of reference numerals in the attached figures

[0081] 1. Child car seats (1A, 1B, 1C)

[0082] 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H Adjustment Mechanisms

[0083] 4 ropes

[0084] 10. Base Body

[0085] 11 ISOFIX

[0086] 23, 24, 25

[0087] 30, 30C, 30F cages

[0088] 32cF, 87, 87C engagement teeth

[0089] Rotary operating parts, models 40, 40C, 40D, 40F, and 40G.

[0090] 43, 43F Drive Gear Section

[0091] 50, 50C, 50F, 50G moving parts

[0092] 53, 53F Driven Gear Section

[0093] 56, 56G, 110H Force-applying components

[0094] Locking release components for models 60, 60B, 60C, and 60F.

[0095] 70, 70C, 70F Locking components

[0096] 72, 72B, 72C, 73F, 93F locking claws

[0097] 80, 80A, 80C, 80E, 80F reels

[0098] 90F Force application section. Detailed Implementation

[0099] Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Furthermore, identical or equivalent parts in the drawings are labeled with the same symbols, and their descriptions are not repeated.

[0100] First, an example of a childcare-related appliance equipped with an adjustment mechanism 3 will be described. Examples of childcare-related appliances using the adjustment mechanism 3 include strollers, car seats, baby carriers, baby racks, and parent chairs. Examples applicable to car seats, strollers, and baby carriers will be described.

[0101] <Overview of Childcare-Related Products>

[0102] Reference Figures 1 to 3 An example of childcare-related equipment 1 in this embodiment will be described.

[0103] (Regarding child car seats)

[0104] First, let's explain the case where the childcare-related equipment 1 is a child seat. In the description of child seat 1, the front-back direction corresponds to the front-back direction of child seat 1, the left-right direction (width direction) corresponds to the left-right direction when viewed from the front of child seat 1, and the up-down direction corresponds to the up-down direction of child seat 1.

[0105] Reference Figure 1Part (A), as the basic structure of the child seat 1, can be the same as the structure of a general child seat. It is a device installed on a car seat to ensure the safe travel of infants, toddlers, and other children. The child seat 1 includes a base body 10 and a seat 20. The base body 10 and the seat 20 constitute the main body of the child seat. The main body of the child seat is the "fixed part" and also the "main body" in this embodiment.

[0106] The base body 10 is mounted on the seat of a passenger vehicle and supports the seat 20 from below. A leg support (not shown) extending toward the floor of the passenger vehicle is provided at the front end of the base body 10, and an ISOFIX 11 that connects to the seat fastener of the passenger vehicle is provided at the rear end of the base body 10. The ISOFIX 11 is a portion that protrudes rearward from the child seat body (base body 10) and is a "movable part" or "extension" in this embodiment.

[0107] The seat 20 is mounted on the upper side of the base body 10 and is supported so as to rotate freely relative to the base body 10. This indicates that a soft fabric component, such as a cushioning material, is installed on the seat 20.

[0108] The seat 20 includes a seat surface 21 and a backrest 22 that rises from behind the seat surface 21. Since a child sits in the seat 20, the seat surface 21 supports the child's buttocks, and the backrest 22 supports the child's back. A detachable cushioning structure is provided at the corner where the seat surface 21 and the backrest 22 intersect.

[0109] A pair of shoulder straps 23 are provided on the backrest 22, which restrain the shoulders of a child sitting in the seat 20. Additionally, a crotch strap 24 extending between the child's groin (thighs) and a pair of waist straps 25 restrain the child's waist are provided on the seat surface 21. These straps 23, 24, and 25 are connected near the child's abdomen by buckles 26 provided at the front end of the crotch strap 24. These straps 23, 24, and 25 are so-called five-point straps. These straps 23, 24, and 25 are body restraints that restrain the child's body; they are portions protruding forward from the child seat body (seat 20), and are "movable parts" or "extensions" in this embodiment. Furthermore, body restraints are also applicable to other childcare-related appliances.

[0110] This child seat 1 uses an adjustment mechanism 3. Generally speaking, the adjustment mechanism 3 includes a rope 4 and an adjustment mechanism body 5 for winding and pulling (delivering) the rope 4. First, the application of the adjustment mechanism 3 to the child seat 1 will be explained.

[0111] (About ISOFIX)

[0112] like Figure 1As shown in sections (A) to (D), the adjustment mechanism 3 of the child seat 1 in this embodiment is used for adjusting the position of the ISOFIX 11. Figure 1 As shown in part (A), the adjustment mechanism 3 is located at the front of the child seat body (base body 10).

[0113] like Figure 1 As shown in parts (B) and (C), the ISOFIX 11 includes an ISOFIX main body 12, a storage part 13 for accommodating the ISOFIX main body 12, and a spring part 14 that applies force outward to the ISOFIX main body 12. The ISOFIX main body 12 is connected to the seat fastener of a passenger car and fixed at an appropriate length.

[0114] Reference Figure 1 Parts (C) and (D) explain the method for adjusting the position of ISOFIX 11 via the adjusting mechanism 3. First, as... Figure 1 As shown in section (C), the ISOFIX main body 12 of ISOFIX 11 is pulled out from the storage section 13. The ISOFIX main body 12 is connected to the fixing member of the passenger car seat, and the child seat 1 is pressed into the seat. The adjustment mechanism body 5 is operated to wind the rope 4. As a result, the child seat 1 can be connected to the passenger car seat without gaps, and the distance between the child seat 1 and the passenger car seat can be finely adjusted.

[0115] In addition, several methods can be used to lengthen the ISOFIX body 12. One method is to release the ISOFIX itself from its lock and operate the adjustment mechanism body 5 to pull the child seat body away from the seat. Another method is to operate the adjustment mechanism body 5 to automatically lengthen it via the spring part 14. Yet another method is to operate the adjustment mechanism body 5 and have the user manually lengthen the ISOFIX body 12. Thus, the length of the ISOFIX 11 can be adjusted easily.

[0116] (Shoulder strap length adjustment)

[0117] like Figure 2 As shown in sections (A) to (C), in other embodiments of the child seat 1A, the adjustment mechanism 3 is used for adjusting the length of the shoulder strap 23. For example... Figure 2 As shown in part (A), the adjustment mechanism 3 is fixed in front of the seat surface 21 of the child seat body (seat 20). Additionally, Figure 2 Parts (B) and (C) are from Figure 2 The child seat 1 shown in part (A) is only shown with the shoulder straps 23 and adjustment mechanism 3 removed.

[0118] The shoulder straps 23 are provided in pairs, and each end of the shoulder strap 23 is fixed with a cord 4. That is, there is a pair of cords 4, and the pair of cords 4 are respectively held at the ends of the pair of shoulder straps 23.

[0119] To adjust the length of the shoulder strap 23, the adjustment mechanism 3 is operated. Specifically, to shorten the length of the shoulder strap 23, from... Figure 2 The state operation adjustment mechanism body 5 shown in part (B) has a wound rope 4, which becomes... Figure 2 The state shown in section (C). To lengthen the shoulder strap 23, from... Figure 2 The main body 5 of the operating adjustment mechanism, shown in section (C), is operated by pulling out the shoulder strap 23 by hand. This allows for simple adjustment of the shoulder strap 23.

[0120] In addition, the main body 5 of the adjustment mechanism is wound with a pair of ropes 4 respectively held at the ends of a pair of shoulder straps 23, but it can also be wound directly around the shoulder straps 23 themselves.

[0121] (Shoulder strap spring mechanism)

[0122] like Figure 3 As shown in sections (A) to (C), in other embodiments of the child seat 1B, the adjustment mechanism 3 is used for the shoulder strap 23 spring-loaded mechanism 27. The shoulder strap 23 spring-loaded mechanism 27 is used to move the shoulder strap 23 from its restrained position (whereby it does not become an obstruction) when the child is seated in the child seat 1B. Figure 3 (B) part) bounces up to the open position ( Figure 3 The structure of (C) part.

[0123] like Figure 3 As shown in section (B), the pop-up mechanism 27 of the shoulder strap 23 includes a rotating part 28 and a pop-up part 29 that can rotate around the rotating part 28 as a fulcrum. Figure 3 As shown in section (C), the shoulder strap 23 springs up along with the spring-loaded part 29. Figure 3 As shown in section (A), the adjustment mechanism 3 is fixed in front of the seat surface 21 of the child seat body (seat 20). Figure 3 As shown in part (B), one end of the rope 4 is connected to the rotating part 28 of the pop-up mechanism 27.

[0124] The method of operating the spring mechanism 27 of the shoulder strap 23 using the adjustment mechanism 3 will be described. Specifically, in order to displace the shoulder strap 23 from the constrained position to the open position, from... Figure 3 Starting from the state shown in part (B), the main body 5 of the adjusting mechanism rotates, winding the rope 4, becoming... Figure 3 The state shown in section (C). To displace shoulder strap 23 from the open position to the constrained position, from... Figure 3The main body 5 of the state operation adjustment mechanism shown in section (C) presses the shoulder strap 23 downward and extends the rope 4. Thus, the operation of the shoulder strap 23 spring mechanism 27 can be performed in a simple way.

[0125] The above describes one example of using the adjustment mechanism 3 in child seats 1 to 1B, but it is not limited to the above embodiment. Furthermore, in Figures 1 to 3 The accompanying drawings illustrate the adjustment mechanism 3 of Embodiment 1 described later, but any adjustment mechanism of any embodiment may also be used.

[0126] Alternatively, an adjustment mechanism can be used to adjust the length of the crotch strap in restraining a child's crotch. In this case, the end of the rope 4 of the adjustment mechanism is held at the end of the crotch strap 24.

[0127] Furthermore, when the headrest 22a, which protects the child's head, is an extension extending from the main body, an adjustment mechanism body 5 can be used to adjust the shape of the headrest 22a. Specifically, adjusting the shape of the headrest 22a refers to, for example, adjusting the height of the headrest 22a, adjusting the width of the upright wall 22b, and adjusting the spacing between the pair of side walls 22c. In this case, one end of the rope 4 can be connected to the movable part of the headrest 22a, and the adjustment mechanism body 5 can be fixed to the back of the backrest 22, which serves as the fixing part.

[0128] Alternatively, an adjustment mechanism 3 can be used to adjust the length of the leg support member located at the front of the base body 10. In this case, the rope 4 can be connected to the end of the leg support member, and the adjustment mechanism body 5 can be fixed to the base body 10, which serves as a fixing part.

[0129] (Regarding infant and toddler holding devices)

[0130] This section explains situations where childcare-related equipment includes infant carrying devices. The basic structure of an infant carrying device can be the same as that of a typical infant carrying device, used for carrying the child in front of you or on your back.

[0131] The infant carrying device includes: an infant carrying device body; parental shoulder straps that wrap around the shoulders of the user (e.g., a parent); and parental waist straps that wrap around the waist of the parent. The infant carrying device body is the part that holds the child's back or abdomen and occupies a large area of ​​the infant carrying device; it is the "fixed part" and "main body" in this embodiment. The parental shoulder straps and parental waist straps are movable parts that extend from the infant carrying device body; they are the "movable parts" and "extensions" in this embodiment. An adjustment mechanism body 5 is provided to adjust the length or shape of such shoulder straps or waist straps. In this case, the adjustment mechanism body 5 may also be fixed to the back of the infant carrying device body, which serves as the fixed part, with one end of a rope 4 connected to the end of the shoulder strap or parental waist strap.

[0132] Furthermore, when the headrest protecting the child's head is an extension extending from the main body (main body) of the infant carrier, an adjustment mechanism body 5 can be used to adjust the height of the headrest to accommodate the child's growth. In this case, one end of the rope 4 can be connected to the movable part of the headrest, and the adjustment mechanism body 5 can be fixed to the back of the infant carrier main body, which serves as a fixing part.

[0133] (Regarding other childcare-related equipment)

[0134] The above examples of childcare-related appliances using the adjustment mechanism 3 have described child seats, strollers, and infant carriers, but other appliances for children to sit or lie down, such as baby chairs and baby chairs, can also be cited. Furthermore, the above-described embodiment is merely one example; any childcare-related appliance that has a main body and an extension extending from the main body, and whose adjustment mechanism is used to adjust the position or shape of the extension, is not limited to the aforementioned childcare-related appliances.

[0135] The adjustment mechanism 3 used in this childcare-related appliance is described in detail.

[0136] <Implementation Method 1>

[0137] Reference Figures 4 to 9 The adjustment mechanism 3 in Embodiment 1 will be described below. The adjustment mechanism 3 is installed in various parts of childcare-related appliances. In the following description of Embodiment 1, the adjustment mechanism 3 will be... Figure 4 Part (C) Figure 5 , Figure 9 The vertical direction on the paper is used as the vertical direction of the adjustment mechanism 3, and the horizontal direction on the paper is used as the horizontal direction of the adjustment mechanism 3.

[0138] As described above, generally speaking, the adjustment mechanism 3 includes a rope 4 and an adjustment mechanism body 5. (See also...) Figure 4 , Figure 5 The main body 5 of the adjustment mechanism includes a retainer 30, a rotation operation component 40, a moving component 50, a locking release component 60, a locking component 70, and a reel 80. The adjustment mechanism 3 uses the rotation operation component 40 to wind the rope 4, and the wound rope 4 can be pulled out (delivered) by operating the locking release component 60.

[0139] Rope 4 connects fixed parts such as the main body of a child seat or infant carrier, and movable parts such as shoulder straps. Rope 4 is wound around a reel 80 and fixed to the fixed part via the reel 80. Rope 4 can be a single rope or multiple ropes. When there are two movable parts, both ends of one rope 4 can be connected to the movable part, and its middle part can be wound around the reel 80. Alternatively, one end of each of the two ropes 4 can be connected to the movable part, and the other end to the fixed part. Alternatively, the reel 80 can be fixed to the movable part instead of the fixed part. In this case, both ends of the rope 4 can be connected to the fixed part, and the rope can be wound around the reel 80, thereby reducing the width of the movable part and the fixed part.

[0140] Rope 4 is a long strip-shaped component, which refers to a component made by combining, weaving, and sewing together threads, chemical fibers, metals, paper, etc., and also includes wires, tapes, etc.

[0141] Reference Figure 4 , Figure 5 The retainer 30 supports the spool 80 so that it can rotate. The retainer 30 includes an upper retainer 31, a lower retainer 34, and a partition plate 37 sandwiched between the upper retainer 31 and the lower retainer 34. The upper retainer 31 includes an upper surface and a side surface that protrudes downward from the outer periphery of the upper surface. A through hole 32 is provided at approximately the center of the upper surface of the upper retainer 31. The upper end of the spool 80 passes through the through hole 32. An operating hole 33 is provided on the side of the upper retainer 31 through which the operating part 61 of the locking release member 60 passes.

[0142] The lower retainer 34 includes a lower surface and a side surface that protrudes upward from the outer periphery of the lower surface. A recess 35 for holding the spool 80 is provided in the area surrounded by the lower surface and the side surface. Rope holes 36 for the rope 4 to pass through are provided on a pair of side surfaces of the lower retainer 34.

[0143] The partition plate 37 is a flat rectangular shape with a through hole 38 in its approximately central portion. This through hole 38 is arranged vertically with the through hole 32 of the upper retainer 31. The through hole 38 allows the upper end of the reel 80 to pass through. A plurality of tracks are provided on the upper surface of the partition plate 37 to guide the locking release member 60. Furthermore, a protrusion 39 protruding upwards is installed on a portion of the outer periphery of the partition plate 37.

[0144] The rotating operating component 40 is used to operate the rotation of the reel 80. The rotating operating component 40 also serves as a handle for the user to grip and rotate. Figure 8As shown in parts (A) to (D), the rotary operating member 40 of this embodiment is in the shape of a knob, including an upper surface 41 and a side surface 42 protruding downward from the outer periphery of the upper surface 41. A drive gear portion 43 protruding downward is provided on the back surface 41a of the upper surface 41. Alternatively, slits may be provided at intervals on the side surface 42 to facilitate operator use.

[0145] Alternatively, a foldable handle may be mounted on the rotating operating component 40. The handle may be, for example, a rod-shaped component, preferably protruding upwards when in use and folded along the upper surface 41 or the side 42 when not in use.

[0146] The moving part 50 is disposed below the rotating operating part 40. The moving part 50 is a cylindrical shape with an open bottom, including an upper surface 51 and an outer peripheral edge 52 protruding downward from the outer periphery of the upper surface 51. A driven gear part 53 is provided on the upper surface 51, facing upward. This driven gear part 53 engages with the drive gear part 43 provided on the rotating operating part 40. In addition, a plurality of longitudinal slits are provided on the outer peripheral edge 52 for engaging with the connecting rod part 57.

[0147] like Figure 4 As shown in section (C), the connecting rod member 57 is generally cylindrical, having a large-diameter portion 57a, a small-diameter portion 57b located below the large-diameter portion 57a, and a stepped portion 57c located between the large-diameter portion 57a ​​and the small-diameter portion 57b. The small-diameter portion 57b is smaller than the through hole 32 of the upper retainer 31. Therefore, the connecting rod member 57 is held in the through hole 32 of the upper retainer 31 by the stepped portion 57c. Alternatively, a ring 58 may be provided between the connecting rod member 57 and the upper retainer 31. A force-applying member 56 is clamped between the moving member 50 and the connecting rod member 57. The force-applying member 56 is, for example, a spring, which applies force to the moving member 50 in the direction toward the rotation operating member 40.

[0148] The scroll 80 can rotate freely in both directions (one direction and the other). (See reference) Figure 4 Part (C) and Figure 5 The reel 80 includes a rope holding part 81, a flange part 84, a first connecting part 85 and a second connecting part 86 from bottom to top.

[0149] The rope holding part 81 is the part that fixes the rope 4, and it is the part that winds and feeds the rope 4. (See reference) Figure 7 The handling of the rope 4 in the rope holding section 81 will be explained. Furthermore, in the following explanation, T represents the winding direction of the rope 4, and S represents the feeding direction.

[0150] The rope holding part 81 has a fixing part 81a for fixing the rope 4, a rope-following part 81b for following the rope 4, and a rounded corner part 81c provided between the fixing part 81a and the rope-following part 81b. The fixing part 81a is located at approximately the center of the rope holding part 81, and the center position of the rope 4 in the length direction is fixed. The rope 4 fixed to the fixing part 81a unwinds along the rounded corner part 81c and extends along the rope-following part 81b from the rope hole part 36 of the lower holder 34 toward the outside of the adjustment mechanism body 5.

[0151] The rope 4 is symmetrically arranged with the fixing part 81a as the center point, along the section 81b and the rounded corner section 81c. Thus, the rope 4 is held in the rope holding part 81 in an inverted S-shape when viewed from above. Because the rounded corner section 81c is formed at the unwinding portion of the rope 4, the rope 4 is smoothly wound along the arc of the rounded corner section 81c. Therefore, even if the rope 4 is pulled and subjected to excessive load, wear at the corners can be prevented.

[0152] like Figure 4 As shown in section (C), the flange 84 is located above the rope holding portion 81 and abuts against the lower part of the partition plate 37. The first connecting portion 85 is, for example, cylindrical. The diameter of the first connecting portion 85 is smaller than the diameter of the through hole 38 of the partition plate 37, and it passes through the through hole 38. Moreover, as... Figure 6 As shown in parts (A) and (B), the first connecting part 85 has engaging teeth 87 on its outer peripheral surface extending parallel to the rotation axis of the spool 80. The second connecting part 86 passes through the through hole 65 of the locking release component 60. Furthermore, the upper end of the second connecting part 86 is connected to the small-diameter portion 57b of the connecting rod component 57. Thus, the spool 80 is fixed to the connecting rod component 57, and the connecting rod component 57 rotates together with the spool 80. Alternatively, the spool 80 and the connecting rod component 57 may be integrally formed.

[0153] like Figure 5 and Figure 6 As shown in parts (A) and (B), the locking component 70 includes a pair of locking bodies 71, engaging claws 72 respectively disposed on the pair of locking bodies 71, a first pin 73 and a second pin 74 passing through holes in the pair of locking bodies 71, and a force-applying part 75 that applies force to the pair of locking bodies 71.

[0154] The locking body 71 can be locked in the locking position where the locking claw 72 and the locking tooth 87 are engaged. Figure 6 (A) part) and the locking release position where the engaging pawl 72 and engaging tooth 87 are not engaged ( Figure 6 The displacement between (B) parts. The locking body 71 has an engaging claw 72 formed at the end facing the spool 80. (As...) Figure 5As shown, the locking body 71 has two pin holes through which the first pin 73 and the second pin 74 pass. This action is performed by the locking release component 60 sliding up and down.

[0155] like Figure 6 As shown in parts (A) and (B), the engaging pawl 72 displaces in a direction orthogonal to the engaging teeth 87 of the spool 80, engaging with the engaging teeth 87 of the spool 80. The angle of the engaging pawl 72 is preferably a right angle, but it can also be an acute angle. The engaging pawl 72 can displace between a first position where it engages with the engaging teeth 87 that rotates together with the spool 80, thus preventing rotation of the spool 80, and a second position where it leaves the part that rotates together with the spool 80, thus allowing rotation of the spool 80. The first pin 73 fixes the force-applying part 75 and passes through the first hole 63 of the locking release member 60. Furthermore, the first pin 73 serves as a guide for the locking release member 60 and as a rotation fulcrum for the locking body 71. The second pin 74 passes through the second hole 64 of the locking release member 60. The force-applying part 75 is, for example, a torsion spring, which applies force in the direction (locked position) where the engaging pawl 72 of the locking body 71 engages with the engaging teeth 87 of the spool 80. The locking pawl 72 of the locking component 70 and the locking tooth 87 of the scroll 80 are a "rotation locking mechanism" that prevents the scroll 80 from rotating.

[0156] The locking release component 60 releases the rotation restriction state of the reel 80, allowing the reel 80 to rotate freely. That is, by operating the locking release component 60, the rope 4 wound on the reel 80 can be pulled out. Figure 6 Part (A) is the state in which the locking release component 60 is not operated, and the rope 4 is wound around the reel 80 but cannot be sent out. Figure 6 Part (B) is the state in which the locking release component 60 is operated, and the rope 4 can be wound from the spool. The locking release component 60 moves in a direction orthogonal to the rotation axis of the spool 80, thereby releasing the rotation restriction state of the spool.

[0157] like Figure 6 As shown in parts (A) and (B), the locking release component 60 includes an operating part 61, a locking release body 62 that slides and moves by operating the operating part 61, a first hole 63, a second hole 64, a through hole 65, a recess 66, and a force application part 67 provided in the locking release body 62. Because the locking release component 60 is provided separately from other components, it can be formed into various shapes and its placement is not limited, thus offering a high degree of design freedom.

[0158] The operating unit 61 is operated by bringing the engaging claw 72 of the locking member 70 to the non-engaged position. For example... Figure 5As shown, the operating part 61 is configured to protrude outward from the operating hole 33 of the upper retainer 31 and can be pressed inward. The locking release part 60 is plate-shaped, with the first hole 63 and the second hole 64 being through holes extending vertically. Specifically, the first hole 63 is an elongated hole extending along the operating direction. The second hole 64 is a roughly inverted L-shaped hole. The first hole 63 and the second hole 64 are symmetrically arranged at points. Figure 6 The (A) part is set on the upper right and lower left parts of the paper.

[0159] A through hole 65 is provided approximately in the center of the locking release body 62, through which the upper end of the spool 80 passes. A recess 66 holds a force-applying part 67. The force-applying part 67 is, for example, a coil spring. The force-applying part 67 is located between the protrusion 39 and the convex part 66 of the partition plate 37. Thus, the locking release member 60 is engaged by the force-applying part 67. Figure 6 The force is applied in the state shown in part (A). In addition, the force application part 67 is a different part from the locking release part 60, but it can also be integrally provided on the locking release body 62, or it can be provided on the side of the upper retainer 31.

[0160] (Regarding one-way clutch mechanisms)

[0161] Reference Figure 6 The one-way clutch mechanism will be described. The one-way clutch mechanism allows the reel 80 to rotate in the winding direction of the rope 4, but prohibits rotation of the reel 80 in the rope feeding direction. A one-way clutch mechanism is a mechanism that easily rotates in one direction but does not rotate in the other, or does not rotate unless a certain load is applied. In this embodiment, in... Figure 6 In part (A), the spool 80 rotates in the winding direction T (clockwise) of the winding rope 4, but does not rotate in the delivery direction S (semi-clockwise).

[0162] The one-way clutch mechanism of this embodiment includes: engaging teeth 87, which are disposed on the reel 80; and engaging pawls 72, which are mounted on the partition plate 37 and are capable of engaging with the reel 80 in an engaging position. Figure 6 (A) portion) and non-engaged position not engaged with spool 80 Figure 6 Displacement between (B) part.

[0163] The engaging teeth 87 of the spool 80 include a first inclined portion 87a and a second inclined portion 87b. The angle formed by the first inclined portion 87a and the second inclined portion 87b is preferably a right angle, consistent with the engaging pawl 72 of the locking member 70. Furthermore, the engaging teeth 87 of the spool 80 and the engaging teeth 72 of the locking member 70 are not limited to the shapes shown in the figure, as long as they are engaged in a shape similar to that of a typical one-way clutch.

[0164] By providing the one-way clutch mechanism of this embodiment, the reel 80 rotates only in the winding direction T and not in the delivery direction S. Therefore, the winding of the rope 4 is performed by rotating the rotation operation member 40, and the delivery of the rope 4 is performed by pulling the rope 4 by operating the locking release member 60, thus preventing accidental operation. Furthermore, since the rotation of the rotation operation member 40 cannot deliver the rope 4, even if the rotation operation member 40 is accidentally operated, the rope 4 will not be delivered, thus improving safety.

[0165] Furthermore, the one-way clutch mechanism of this embodiment completely prohibits rotation of the rope in the delivery direction, but can also prohibit some degree of rotation. The one-way clutch mechanism of this embodiment can also be structured with an action transmission section and an action separation section, as described later with the drive gear section 43 and driven gear section 53. In the case of such a one-way clutch mechanism, from a safety point of view, it is preferable to use a section for adjusting the position or shape where no load is applied.

[0166] (Regarding the motion transmission section and the motion separation section)

[0167] Reference Figure 8 as well as Figure 9 The motion transmission part and motion separation part provided in the rotary operation member 40 and the moving member 50 will be described.

[0168] like Figure 8 Part (C) and Figure 8 As shown in section (D), a drive gear 43 is provided on the back side of the rotary operating member 40. Figure 8 As shown in section (B), the drive gear unit 43 includes a first inclined portion 44 inclined in the delivery direction S from the side of the moving member 50 toward the back surface 41a of the rotating operation member 40, and a second inclined portion 45 inclined in the winding direction T from the side of the moving member 50 toward the back surface 41a of the rotating operation member 40. The angle θ44 formed by the back surface 41a and the first inclined portion 44, and the angle θ45 formed by the back surface 41a and the second inclined portion 45 are both acute angles, but the angle θ45 is set to be greater than the angle θ44 (θ45>θ44).

[0169] And, as Figure 8 As shown in part (A), a driven gear 53 is provided on the upper surface of the moving member 50. Figure 8As shown in section (B), the driven gear section 53 includes a first inclined portion 54 that is inclined in the winding direction T from the side of the rotating operation member 40 toward the upper surface 51 of the moving member 50, and a second inclined portion 55 that is inclined in the feeding direction S from the upper surface 51 of the moving member 50 toward the back surface 41a of the rotating operation member 40. The angles θ54 between the upper surface 51 and the first inclined portion 54, and the angle θ55 between the upper surface 51 and the second inclined portion 55, are both acute angles, but the angle θ55 is set to be greater than the angle θ54 (θ55>θ54). In addition, in this embodiment, θ44≈θ54 and θ45≈θ55, and the drive gear section 43 and the driven gear section 53 are firmly meshed.

[0170] When the rotating operating member 40 is rotated in the winding direction T, the second inclined portion 45 of the drive gear portion 43 with a larger tilt angle meshes with the second inclined portion 55 of the moving member 50, and the moving member 50 (roller 80) also rotates. Figure 9 A represents the state that accompanies rotation.

[0171] When the winding of the rope 4 ends, the moving member 50 (spool 80) becomes unable to rotate, thus applying a certain or higher load (high torque) to the meshing of the second inclined portion 45 of the drive gear 43 and the second inclined portion 55 of the moving member 50. In this state, when the rotating operating member 40 is rotated, the drive gear 43 passes over the driven gear 53, and only the rotating operating member 40 rotates. That is, when a certain or higher load is applied to the rotating operating member 40, the rotational motion of the rotating operating member 40 is not transmitted to the spool 80. This state is as follows: Figure 9 As shown in section (B). Figure 9 As shown in section (B), the drive gear 43 passes over the driven gear 53, and the moving member 50 descends only by a dimension L. Thus, under a certain load, the rotary operating member 40 rotates freely while the moving member 50 moves up and down repeatedly.

[0172] That is, the second inclined portion 45 of the drive gear portion 43 and the second inclined portion 55 of the moving member 50 are normally "motion transmission portions" that transmit the rotational motion of the rotating operation member 40 to the spool, but when a certain or higher load is applied, they become "motion separation portions" that do not transmit the rotational motion of the spool 80 to the spool.

[0173] Furthermore, to improve operability, the rotary operating member 40 is configured as a one-way clutch structure that prevents the rope 4 from being pulled out. When the rotary operating member 40 is rotated in the delivery direction S, the first inclined portion 44 of the drive gear portion 43 engages with the first inclined portion 54 of the moving member 50, but the reel 80 does not rotate in the delivery direction S, thus forming a one-way clutch mechanism. Figure 6Therefore, the drive gear 43 of the rotating operation member 40 passes over the driven gear 53 of the moving member 50 and idles. That is, when a certain or more load is applied to the rotating operation member 40, the rotational motion of the rotating operation member 40 is not transmitted to the reel 80.

[0174] The adjustment mechanism 3 of this embodiment is provided with an action transmission section and an action separation section. When the rotating operation member 40 is rotated in the delivery direction S, it is set to idle, thereby improving operability. In addition, when the winding of the rope 4 is completed and the rotating operation member 40 is rotated in the winding direction T, the rotating operation member 40 is set to idle, thereby preventing the rope 4 from being pulled tightly and serving as a reference for the winding status of the rope 4.

[0175] Furthermore, in the above embodiment, a drive gear portion 43 is provided on the back side of the upper surface 41 of the moving member 50, and a driven gear portion 53 is provided on the upper surface 51 of the moving member 50. However, the driven gear portion 53 may also be provided in a direction orthogonal to the rotation axis of the scroll 80 (left-right direction). Specifically, a structure in which the drive gear portion 43 is provided on the back side of the side 42 of the moving member 50, and the driven gear portion 53 of the moving member 50 is provided, can be described. Thus, when a certain load is applied by rotating the rotation operation member 40, the rotation operation member 40 rotates while the moving member 50 repeatedly moves in the horizontal direction (left-right direction).

[0176] In addition, in the above embodiment, a force-applying member 56 is provided to apply force to the moving member 50 toward the rotating operation member 40, but a resin spring or similar component may also be integrally provided on the member on which the driven gear 53 is provided.

[0177] (Regarding the action)

[0178] The operation of the adjustment mechanism 3 in Embodiment 1 will be explained. When it is desired to wind the rope 4, the rotation operation member 40 is rotated; when it is desired to feed the rope 4, the operation part 61 of the locking release member 60 is pressed to pull the rope 4.

[0179] Specifically, in the case of wanting to wind rope 4, such as Figure 6 As shown in part (A), the rotating operating member 40 is rotated in the winding direction T (clockwise). Then, through the one-way clutch mechanism, the engaging pawl 72 of the locking member 70 engages with the first inclined portion 87a of the engaging tooth 87 of the spool 80 and engages with the next engaging tooth 87. This action is repeated, and the spool 80 also rotates clockwise, winding the rope 4.

[0180] Additionally, if you want to send out rope 4, such as Figure 6As shown in section (B), the operating part 61 of the locking release component 60 is pressed toward the retainer 30. Then, the locking release body 62 moves toward... Figure 6 The second pin 74 of the second hole 64 of the locking release body 62 moves, and the locking member 70 moves. The engaging claw 72 of the locking member 70 disengages from the engaging tooth 87 of the scroll 80. As a result, the scroll 80 rotates freely and pulls the rope 4, thereby enabling the rope 4 to be delivered.

[0181] (Variation Example 1)

[0182] Reference Figure 10 The adjustment mechanism 3A in Modification 1 will be described below. The spool 80A of the adjustment mechanism 3A in Modification 1 is an integrally formed component of the rotary operation member 40, the moving member 50, the connecting rod member 57, and the spool 80 in the above-described embodiment. This Modification 1 adjustment mechanism 3A eliminates the need for the rotary operation member 40, the moving member 50, and the connecting rod member 57, thus reducing the number of components and achieving a simpler structure. Furthermore, in this modification, since the rotary operation member 40 and the moving member 50 are integrally formed, no motion transmission section or motion separation section is provided.

[0183] (Variation Example 2)

[0184] Reference Figure 11 The adjustment mechanism 3B in Modified Example 2 will be explained in parts (A) and (B). Figure 11 Part (A) is a diagram showing the state of the lock release component 60 when it is not operated. Figure 11 Part (B) is a diagram showing the state of the operation lock release component 60.

[0185] In Modification 2, the engaging claw 72 of the adjusting mechanism 3B can also be provided in the locking release member 60 of the above embodiment. Specifically, an engaging claw 72B protruding towards the inner side of the through hole 65B of the locking release member 60B is provided on the outer periphery of the through hole 65B. Thus, by pressing the operating part 61 of the locking release member 60B, the engagement between the engaging teeth 87 of the spool 80 and the engaging claw 72 is released, and the rotation restriction state of the spool 80 is lifted. In the adjusting mechanism 3B of Modification 3, the locking member 70 is not required, thus reducing the number of parts and resulting in a simpler structure.

[0186] <Implementation Method 2>

[0187] Reference Figures 12 to 18The adjustment mechanism 3C in Embodiment 2 will be described in detail. Only the differences between the adjustment mechanism 3C shown in Embodiment 1 and this embodiment will be explained in detail. Generally speaking, Embodiment 1 and this embodiment differ in the locking release component 60C and the one-way locking mechanism. The adjustment mechanism 3 is installed in various parts of childcare-related appliances, and in the following description, it will be... Figure 12 Part (C) and Figure 13 The top of the paper is used as the top of the adjustment mechanism 3C, and the bottom of the paper is used as the bottom of the adjustment mechanism 3C.

[0188] Generally speaking, the adjustment mechanism 3C consists of a rope 4 and the main body of the adjustment mechanism 5C. (See also...) Figure 12 , 13 The main body 5C of the adjustment mechanism includes a retainer 30C, a rotation operation component 40C, a moving component 50C, a locking release component 60C, a locking component 70C, and a reel 80C. The adjustment mechanism 3C can wind the rope 4 using the rotation operation component 40C and pull out (feed out) the wound rope 4 by operating the locking release component 60C.

[0189] The retainer 30C includes an upper retainer 31C and a lower retainer 34C. The upper retainer 31C has a through hole 32C at approximately the center of its upper surface. The rotating operating member 40C passes through this through hole 32C. The upper retainer 31C has a hole 33C on its side for the rope 4 to pass through. The lower retainer 34C has a recess 35 at approximately its center for retaining the locking member 70C.

[0190] The rotating operating component 40C is used to operate the rotation of the reel 80C. Cutouts may also be provided at intervals at the corner where the upper surface 41C and side surface 42C of the rotating operating component 40C intersect, to facilitate operator use. Furthermore, the rotating operating component 40C has a through hole 46C approximately in the center of its upper surface 41C. The locking release component 60C passes through this through hole 46C. Additionally, as... Figure 17 As shown in parts (C) and (D), a drive gear part 43 protruding downward is provided on the back side of the upper surface 41C.

[0191] like Figure 13 As shown, the moving part 50C is disposed below the rotating operating part 40C. A hole is provided on the upper surface 51C of the moving part 50C, through which the locking release body 62C of the locking release part 60C passes. A driven gear part 53, facing upwards, is provided on the outer periphery 52 of the moving part 50C. This driven gear part 53 engages with the drive gear part 43 of the rotating operating part 40C.

[0192] like Figure 12As shown in section (C), the linkage member 57C has a bottom 57aC and a side 57bC extending upward from the bottom 57aC. A force-applying member 56 is sandwiched between the moving member 50C and the linkage member 57C. The force-applying member 56 is, for example, a spring, which applies a force to the moving member 50C in a direction toward the rotational operating member 40C.

[0193] The reel 80C includes a rope holding portion 81C and a flange portion 84C. The rope holding portion 81C is disposed above the flange portion 84C. (See reference...) Figure 16 The handling of the rope 4 in the rope holding part 81C will be explained. The difference between the rope holding part 81C of this embodiment and the rope holding part 81 of Embodiment 1 lies in the location where the rope 4 is held. In Embodiment 1, the rope 4 is fixed at a location of a fixing part 81a located approximately at the center when viewed from above. In this embodiment, the rope 4 is fixed by fixing parts 81aC located above and below the approximately center location when viewed from above. These fixing parts 81aC are cut-in portions shaped to clamp the end of the rope 4. In this embodiment, instead of one rope, two ropes 4 are provided.

[0194] like Figure 12 As shown in section (C), the flange 84C extends in a direction orthogonal to the axis of rotation and abuts against the upper part of the lower retainer 34C. Figure 15 As shown in part (C), engaging teeth 87C are provided on the back side of the flange portion 84C.

[0195] like Figure 12 Part (C) and Figure 15 As shown in section (C), the locking component 70C includes a locking body 71C, an engaging pawl 72C disposed on the upper surface of the locking body 71C, and a force-applying component 75C that applies force to the locking body 71C. The locking body 71C can be engaged in an engagement position where the engaging pawl 72C engages with the engaging tooth 87C. Figure 14 (A) part) and the non-engaging position where the engaging claw 72C and the engaging tooth 87C do not engage ( Figure 14 The displacement between (B) parts. The engaging tooth 87C is provided on the upper surface extending in a direction orthogonal to the rotation axis of the spool 80C. The engaging pawl 72C of the locking member 70C and the engaging tooth 87C of the spool 80C are a "rotation locking mechanism" that prevents the rotation of the spool 80C.

[0196] The locking release component 60C releases the rotation restriction state of the reel 80C, allowing the reel 80C to rotate freely. That is, by operating the locking release component 60C, the rope 4 wound on the reel 80C can be pulled out. Figure 14Part (A) is the state in which the locking release component 60C is not operated, and the rope 4 is wound around the reel 80C but cannot be sent out. Figure 14 Part (B) is the state in which the locking release component 60C is operated, and the rope 4 can be delivered from the reel 80C. The locking release component 60C releases the rotation restriction state of the reel 80C by moving in a direction parallel to the rotation axis of the reel 80C.

[0197] Referring to these figures, the locking release component 60C includes: an operating part 61C operated by a user; and a locking release body 62C, which slides vertically by the operation of the operating part 61C and extends in a rod shape in the vertical direction. The locking release component 60C abuts against the upper part of the locking component 70C. Thus, the locking release component 60C is always subjected to force by the force-applying component 75C toward the locking release position (upward).

[0198] (Regarding one-way clutch mechanisms)

[0199] Reference Figure 15 The one-way clutch mechanism will be described. In the above embodiment, the one-way clutch mechanism is operated by moving the locking member 70C in a direction orthogonal to the rotation axis, but in this embodiment, it is operated by moving the locking member 70C in a direction parallel to the rotation axis.

[0200] In this embodiment, a one-way clutch mechanism is achieved by engaging the engaging teeth 87C provided on the spool 80C with the engaging pawl 72C provided on the locking member 70C. The engaging pawl 72C is displaceable between a first position where it engages with the engaging teeth 87C, which rotates together with the spool 80C, thus preventing rotation of the spool 80C, and a second position where it disengages from the portion that rotates together with the spool 80C, thus allowing rotation of the spool 80C. The engaging teeth 87C of the spool 80C include a first inclined portion 87aC and a second inclined portion 87bC. The angle between the first inclined portion 87aC and the second inclined portion 87bC is preferably, for example, a right angle. Furthermore, it is preferable that the shape of the engaging pawl 72C of the locking member 70C is correspondingly right-angled with the engaging teeth 87C. The engaging pawl 72C displaces in a direction orthogonal to the engaging teeth 87C.

[0201] (Regarding the motion transmission section and the motion separation section)

[0202] Reference Figure 17 , Figure 18 The motion transmission section and motion separation section provided in the rotary operation member 40C and the moving member 50C will be described. Since the motion transmission section and motion separation section are almost identical to those in Embodiment 1 described above, they will be briefly described with reference to the accompanying drawings.

[0203] like Figure 17As shown in parts (C) and (D), a drive gear part 43 is provided on the back side 41aC of the upper surface 41C of the rotary operating member 40C. Figure 17 As shown in part (A), a driven gear 53 is provided on the upper surface of the moving part 50C.

[0204] like Figure 17 As shown in part (B), when the rotating operation member 40C is rotated in the winding direction T, and the drive gear 43 meshes with the driven gear 53 to rotate, the moving member 50C (spindle 80C) also rotates in accordance with the rotation of the rotating operation member 40C. Figure 18 A represents the accompanying state.

[0205] Furthermore, if the rotating operating member 40C continues to rotate in the winding direction T and the winding of the rope 4 ends, the moving member 50C (spindle 80C) cannot rotate. In this case, if the rotating operating member 40C continues to rotate further in the winding direction T, a certain or more load is applied to the meshing of the drive gear 43 and the driven gear 53, such as... Figure 18 As shown in section (B), the drive gear 43 passes over the driven gear 53, and only the rotating operating member 40C rotates. That is, when a certain load or more is applied to the rotating operating member 40C, the rotational motion of the rotating operating member 40C is not transmitted to the reel 80C. Figure 18 B represents that state. For example... Figure 18 As shown in section (B), the drive gear 43 passes over the driven gear 53, and the moving member 50 descends only by a dimension L. Thus, under a certain load, the rotary operating member 40 rotates freely while the moving member 50 moves up and down repeatedly.

[0206] Furthermore, to improve operability, the rotary operating member 40C is designed as a one-way clutch structure that prevents the rope 4 from being pulled out. When the rotary operating member 40C is rotated in the delivery direction S, the drive gear 43 passes over the driven gear 53 and idles. That is, even when a certain load is applied to the rotary operating member 40C, the rotational motion of the rotary operating member 40C is not transmitted to the reel 80C.

[0207] (Regarding the action)

[0208] The operation of the adjustment mechanism 3C in Embodiment 2 will be explained. When it is desired to wind the rope 4, the rotation operation member 40C is rotated; when it is desired to feed the rope 4, the locking release member 60C is pressed and the rope 4 is pulled.

[0209] Specifically, to wind the rope 4, the rotating operating member 40C is rotated in the winding direction. For example... Figure 14 Part (A) Figure 15As shown in part (B), although the engaging tooth 87C of the spool 80C engages with the engaging pawl 72C of the locking member 70C, through the one-way clutch mechanism, the engaging tooth 87C of the spool 80C rests on the engaging pawl 72C of the locking member 70C and engages with the next engaging tooth 87C. This action is repeated, and the spool 80C rotates clockwise and winds the rope 4.

[0210] If you want to send out rope 4, such as Figure 14 As shown in section (B), pressing down on the operating part 61C of the locking release member 60C causes the locking release body 62C to move the moving member 50C downwards, disengaging the engagement between the locking member 70C's locking claw 72C and the winding shaft 80C's locking teeth 87C. This allows the winding shaft 80C to rotate freely and pull the rope 4, thereby enabling the rope 4 to be delivered.

[0211] In this embodiment, although the rotation operation member 40C and the locking release member 60C are located in the same position, the locking release member 60C operates in different directions during rotation, and the operation member 61C operates in different directions during vertical movement. Therefore, operability can be improved and misoperation can be prevented.

[0212] (Variation Example 1)

[0213] Reference Figure 19 The adjustment mechanism 3D in Modification 1 will be described below. The adjustment mechanism 3D can also be a component integrally formed from the locking release member 60C and the locking member 70C of the above embodiment. That is, the locking release member 60D has the function of locking or releasing the rotation of the scroll 80C. By operating the locking release member 60D, the locking release member 60D itself moves downward, and the scroll 80C rotates freely. Therefore, since the adjustment mechanism 3D of Modification 1 is integrally formed from the locking release member 60C and the locking member 70C of the above embodiment, the number of components can be reduced, resulting in a simpler structure.

[0214] (Variation Example 2)

[0215] Reference Figure 20 The adjustment mechanism 3E in Modification 2 will be described below. The adjustment mechanism 3E can also be a component integrally formed from the rotary operation member 40C and the reel 80C of the above embodiment. That is, the reel 80E can be rotated to wind the rope 4. Therefore, since the rotary operation member 40C and the locking member 70C are integrally formed in the adjustment mechanism 3E of Modification 2, the number of components can be reduced, resulting in a simpler structure. Furthermore, in this modification, since the rotary operation member 40C and the moving member 50C of Embodiment 2 are integrally formed, no motion transmission part or motion separation part is provided.

[0216] <Implementation Method 3>

[0217] Reference Figures 21 to 31 The adjustment mechanism 3F in Embodiment 3 will be described in detail. Only the differences between the adjustment mechanisms 3 and 3C shown in Embodiments 1 and 2 will be explained in detail. There are various differences between Embodiment 1 and this embodiment; generally speaking, the differences lie in the locking release member 60F and the locking member 70F. Furthermore, the adjustment mechanism 3F is installed in various parts of childcare-related appliances, but in the following description, it will be... Figure 21 Part (C) and Figure 22 The vertical direction on the paper is used as the vertical direction of the adjustment mechanism 3F, and the horizontal direction on the paper is used as the horizontal direction of the adjustment mechanism 3F.

[0218] Generally speaking, the adjustment mechanism 3F consists of a rope 4 and the main body of the adjustment mechanism 5F. (See also...) Figure 21 , Figure 22 The main body 5F of the adjustment mechanism includes a retainer 30F, a rotation operation member 40F, a moving member 50F, a locking release member 60F, a locking member 70F, and a winding shaft 80F. The adjustment mechanism 3F is also the same as in the above embodiment, using the rotation operation member 40F to wind the rope 4 and operating the locking release member 60F, thereby pulling out (feeding out) the wound rope 4.

[0219] Cage 30F includes upper cage 31F and lower cage 34F. For example... Figure 22 , Figure 23 As shown, the upper retainer 31F has a through hole 32F disposed on the left side and a pair of elongated holes 32fF disposed opposite to the through hole 32F in the oblique vertical direction.

[0220] A pair of feet 57cF of the connecting rod component 57F pass through the through hole 32F of the upper retainer 31F from above, and the engaging claws 73F and 93F of the locking component 70F pass through the through hole 32F of the upper retainer 31F from below. (Refer to...) Figure 23 A rib 32aF protruding inward toward the outer periphery of the through hole 32F is provided. The rib 32aF includes an arcuate portion 32bF and engaging teeth 32cF spaced at intervals along the arcuate portion 32bF. The engaging teeth 32cF are arranged on the inner circumferential surface of the through hole 32F of the upper retainer 31F along the circumference of the spool 80F. The engaging teeth 32cF include a first inclined portion 32dF and a second inclined portion 32eF. The first inclined portion 32dF is approximately perpendicular to the arcuate portion 32bF, and the second inclined portion 32eF is formed at an obtuse angle relative to the arcuate portion 32bF. The engaging claws 73F and 93F of the locking member 70F and the engaging teeth 32cF of the upper retainer 31F constitute a "rotation locking mechanism" that prevents the rotation of the spool 80F.

[0221] like Figure 21 Part (A) and Figure 22 As shown, a pair of opposite sides of the upper retainer 31F are provided with rope holes 33F through which the rope 4 passes. A pair of elongated holes 32fF are arc-shaped along the through holes 32F. The threaded hole 68dF of the second release component 64F, described later, passes through the elongated holes 32fF.

[0222] like Figure 22 As shown, the lower retainer 34F functions as a lower cover, and is, for example, a rectangular plate-like component. Feet may also be provided at the four corners of the lower retainer 34F.

[0223] The rotating operating component 40F is used to operate the rotation of the reel 80F. For example... Figure 28 Part (A) and Figure 29 As shown in part (A), the rotating operating member 40F has a through hole 46F approximately at the center of its upper surface 41. A screw 47F passes through this through hole 46F, supporting the moving member 50F so that it can move up and down. Additionally, as... Figure 28 As shown in part (C), a drive gear portion 43 protruding downward is provided on the back side 41a of the upper surface 41.

[0224] Especially as Figure 28 As shown in parts (A) and (B), the moving member 50F is disposed below the rotating operating member 40F. A driven gear portion 53F is provided on the moving member 50F, recessed downwards from its upper surface 51aF. The driven gear portion 53F engages with the drive gear portion 43 of the rotating operating member 40F.

[0225] like Figure 29 As shown in part (A), the linkage component 57F includes an upper portion 57aF and a lower portion 57bF. The upper portion 57aF is a cylindrical shape open at the top. The upper portion 57aF holds the moving component 50F and the force-applying component 56 inside. The lower portion 57bF includes a pair of legs 57cF protruding downwards. The pair of legs 57cF are connected to the reel 80F. Thus, the linkage component 57F and the reel 80F are fixed, and the rotation of the linkage component 57F is directly connected to the rotation of the reel 80F.

[0226] like Figure 22 , Figure 27 As shown, the reel 80F includes a rope holding portion 81F and a flange portion 84F that rotatably holds the rope holding portion 81F. Additionally, in Figure 27In section (B), arrows indicate the winding direction T and the delivery direction S of the rope 4. The handling of the rope 4 in the rope holding part 81F is substantially the same as that of the rope holding part 81 in Embodiment 1. In this embodiment, a fixing part for fixing the rope 4 to the reel 80F is not provided, but it can be fixed at approximately the center position in plan view, similar to Embodiment 1. In addition, in Embodiment 1, the rounded corner part 81c is only provided at the folded-back portion of the rope 4, and it is not a symmetrical shape, but in this embodiment, it can also be a symmetrical shape, and the rounded corner part 81cF is also provided at the portion of the rope 4 that is not folded back.

[0227] like Figure 22 As shown, the flange portion 84F of the spool 80F extends in a direction orthogonal to the axis of rotation. The flange portion 84F is located above the rope holding portion 81F and is connected to the foot portion 57cF of the connecting rod member 57F. That is, the spool 80F is connected to the connecting rod member 57F, and the spool 80F rotates as the connecting rod member 57F rotates.

[0228] Reference Figures 22 to 26 The locking component 70F will be described below. In the following description, please refer specifically to... Figure 24 In part (A), the locking member 70F of this embodiment includes an upper sliding member 71F, a lower sliding member 91F that overlaps with the upper sliding member 71F, and a spring 90F disposed between the upper sliding member 71F and the lower sliding member 91F.

[0229] The upper sliding component 71F includes a sliding body portion 72F, an engaging claw 73F protruding upward from the sliding body portion 72F, a support portion 74F protruding downward from the sliding body portion 72F, a first insertion hole 77F formed in the sliding body portion 72F, a first hole 75F branching from the first insertion hole 77F, and a second hole 76F.

[0230] The lower sliding member 91F and the upper sliding member 71F are arranged approximately symmetrically from left to right. The lower sliding member 91F includes a sliding body portion 92F, a locking claw 93F protruding upward from the sliding body portion 92F, a support portion 94F protruding downward from the sliding body portion 92F, a first insertion hole 97F formed in the sliding body portion 92F, a first hole 95F branching from the first insertion hole 97F, and a second hole 96F. The locking claws 73F and 93F pass through the through hole 32F of the upper retainer 31. The locking claws 73F and 93F are displaced in the horizontal direction relative to the locking teeth 32cF. In addition, above the lower sliding member 91F on the paper surface, a guide portion 98F extending in the left-right direction is provided to guide the left-right sliding of the upper sliding member 71F.

[0231] By overlapping the upper sliding component 71F and the lower sliding component 91F, the first holes 75F and 95F are vertically connected, and the second holes 76F and 96F are vertically connected. Figure 24 As shown in parts (B) and (C), by sliding the upper sliding member 71F to the right and the lower sliding member 91F to the left, the shapes of the first holes 75F and 95F and the second holes 76F and 96F change and become smaller.

[0232] Spring 90F is sandwiched between the support portion 74F of the upper sliding member 71F and the support portion 94F of the lower sliding member 91F. As a result, the upper sliding member 71F and the lower sliding member 91F are always subjected to a force in the direction of departure.

[0233] Next, the operation of the locking component 70F will be explained. For example... Figure 22 and Figure 25 As shown, the foot 57cF of the connecting rod component 57F passes through the first holes 75F and 95F and the second holes 76F and 96F of the locking component 70F. The foot 57cF of the connecting rod component 57F is connected to the reel 80F by a screw. The locking component 70F is clamped between the connecting rod component 57F and the reel 80F. Thus, when the connecting rod component 57F is moved... Figure 25 When part (A) rotates in the winding direction T, as Figure 25 As shown in section (C), the foot 57cF of the connecting rod component 57F presses the first hole 75F of the upper sliding component 71F to the right, and the foot 57cF of the connecting rod component 57F presses the second hole 96F of the lower sliding component 91F to the left. As a result, the upper sliding component 71F moves to the right, the lower sliding component 91F moves to the left, and the engaging claws 73F and 93F of the locking component 70F move inward.

[0234] Figure 26 Parts (A) to (D) are from Figure 21 A cross-sectional view observed along line XXVI of section (C). Simply put, it represents the view taken at... Figure 25 The diagram shows the state where the retainer 31F is further overlapped above parts (B) to (D). The locking pawls 73F and 93F of the locking member 70F rotate while their intervals widen or narrow due to the rotation of the connecting rod member 57F. Specifically, if in Figure 26 In the state shown in part (A), rotate in the winding direction T, then as follows Figure 29As shown in section (B), the engaging claws 73F and 93F of the locking member 70F approach each other. When the connecting rod member 57F is further rotated, the engaging claws 73F and 93F of the locking member 70F engage with the next engaging tooth 32cF. In this way, the engaging claws 73F and 93F of the locking member 70F wind the rope 4 while rotating 45 degrees each time. In addition, since it is a one-way clutch mechanism, it does not rotate in the feeding direction S of the feeding rope 4.

[0235] Reference Figure 22 , Figure 30 , Figure 31 The locking release component 60F will be explained. Figure 31 Part (A) is the state where the locking release component 60 is not operated. Figure 31 Part (B) is the state in which the locking release component 60 is operated. Figure 31 The left-hand view of parts (A) and (B) is a top view showing only the upper retainer 31F and the second release component 64F removed, while the right-hand view is a perspective view with the first release component 61F further overlapped. Figure 26 The diagram shows a portion of the image. The locking release component 60 moves in a direction orthogonal to the rotation axis of the reel 80F, thereby releasing the rotation restriction state of the reel. Furthermore, in... Figure 30 , Figure 31 In the text, for ease of understanding, the first release component 64F is marked with a light ink color.

[0236] Special reference Figure 22 The locking release component 60F includes a first release component 61F operated by the user, a second release component 64F that slides vertically due to the operation of the first release component 61F, and a force-applying part 69F that applies force to the second release component 64F in the direction opposite to the locking release direction. The first release component 61F and the second release component 64F move integrally. The force-applying part 69F is, for example, a coil spring, which applies force in a direction away from the first release component 61F and the second release component 64F. Alternatively, the first release component 61F, the second release component 64F, and the force-applying part 69F may be integrally formed and not composed of separate components.

[0237] The first release component 61F includes a locking release body 62F and a through hole 63F located approximately at the center of the locking release body 62F. A pair of threaded holes 62aF are provided in the locking release body 62F. The locking release body 62F is generally circular in plan view, but a portion protrudes to form an operating part. A pair of feet 57cF of the aforementioned connecting rod component 57F pass through the through hole 63F.

[0238] Reference Figure 22 and Figure 30The second release component 64F includes a release body 65F and a protrusion 66F protruding from the release body 65F. A through hole 67F is formed approximately at the center of the release body 65F, and a pair of threaded holes 68dF are provided around the through hole 67F. A pair of feet 57cF of the aforementioned connecting rod component 57F pass through the through hole 67F. A screw passing through the threaded hole 62aF of the first release component 61F passes through the pair of threaded holes 68dF. A hole 66aF is provided in the protrusion 66F. A pin component 69aF located at the end of the force-applying component 69F passes through the hole 66aF. Thus, the locking release component 62F is forceped in the direction opposite to the locking release direction.

[0239] Next, the operation of the locking release component 60F will be explained. For example... Figure 31 As shown in section (A), when the first release member 61F of the locking release member 60F is rotated counterclockwise (approximately 45 degrees), the second release member 64F also rotates counterclockwise in the same manner. Figure 31 As shown in part (B), the engaging teeth 32cF of the rib 32aF of the upper retainer 31F are covered by the arcuate portion 67aF of the second release member 64F, and the engaging claws 73F and 93F of the locking member 70F move inward, allowing the spool 80F connected to the locking member 70F to rotate freely. Thus, by moving the locking release member 60F in a direction orthogonal to the rotation axis of the spool 80F, the engagement between the locking member 70F and the upper retainer 31F can be released.

[0240] (Regarding one-way clutch mechanisms)

[0241] Reference Figure 26 The one-way clutch mechanism will be described. The one-way clutch mechanism in this embodiment is similar to that in Embodiment 1, and is operated by moving the locking member 70F in a direction orthogonal to the rotation axis.

[0242] The one-way clutch mechanism of this embodiment operates by engaging the engagement teeth 32cF provided on the upper retainer 31F with the engagement claws 73F and 93F provided on the locking member 70F. The engagement claws 73F and 93F are displaced in a direction orthogonal to the engagement teeth 32cF. The engagement teeth 32cF of the upper retainer 31F include a first inclined portion 32dF and a second inclined portion 32eF. The angle formed between the first inclined portion 32dF and the arcuate portion 32bF is preferably, for example, a right angle. In addition, the angle formed between the second inclined portion 32eF and the arcuate portion 32bF is preferably, for example, an obtuse angle. As a result, the spool 80F has a structure that can rotate in the winding direction T but cannot rotate in the delivery direction S.

[0243] (Regarding the motion transmission section and the motion separation section)

[0244] Reference Figure 25 as well as Figure 26 The motion transmission section and motion separation section disposed between the rotary operating member 40F and the moving member 50F will be described. Since the motion transmission section and motion separation section are almost identical to those in Embodiment 1 described above, a simplified explanation is provided with accompanying drawings.

[0245] like Figure 28 As shown in part (C), a drive gear 43 is provided on the back side of the rotary operating member 40F. Figure 28 As shown in part (A), a driven gear 53F is provided on the upper surface of the moving part 50F.

[0246] like Figure 28 As shown in part (A), when the drive gear 43 and driven gear 53F are engaged and rotating, the moving member 50F (spool 80F) also rotates in tandem with the rotation of the rotation operation member 40F. Further rotating the rotation operation member 40F in the winding direction, when the winding of the rope 4 ends, the moving member 50F (spool 80F) becomes unable to rotate. When a certain load is applied to the engagement of the drive gear 43F and driven gear 53F, when the rotation operation member 40F is further rotated, as... Figure 28 As shown in section (B), the drive gear 43 passes over the driven gear 53F, and only the rotating operating member 40F rotates. That is, when a certain load is applied to the rotating operating member 40F, the rotational motion of the rotating operating member 40F is not transmitted to the reel 80F.

[0247] Furthermore, to improve operability, the rotary operating member 40F is designed as a one-way clutch structure that prevents the rope 4 from being pulled out. When the rotary operating member 40F is rotated in the delivery direction, the drive gear 43 passes over the driven gear 53F and idles. That is, when a certain load is applied to the rotary operating member 40F, the rotational motion of the rotary operating member 40F is not transmitted to the reel 80F.

[0248] (Regarding the action)

[0249] The operation of the adjustment mechanism 3F in Embodiment 3 will be explained. When it is desired to wind the rope 4, the rotation operation member 40F is rotated; when it is desired to feed the rope 4, the locking release member 60F is rotated to pull the rope 4.

[0250] Specifically, in the case of wanting to wind rope 4, such as Figure 25 As shown in section (A), the rotating operating member 40F (spool 80F) is rotated clockwise. Thus, as... Figure 26As shown in parts (A) to (D), through the one-way clutch mechanism, the engaging claws 73F and 93F of the locking component 70F disengage from the engaging teeth 32cF of the upper retainer 31F, rotate and engage with the next engaging tooth 32cF, and repeat this action, while the spool 80F also rotates clockwise and winds the rope 4.

[0251] If you want to send out rope 4, such as Figure 31 As shown in parts (A) and (B), the first release member 61F of the locking release member 60F is rotated clockwise (in the direction of the arrow). This causes the second release member 64F to rotate, and the arc-shaped portion 67aF of the second release member 62F coincides with the engaging teeth 32cF of the upper retainer 31F. The engaging claws 73F and 93F of the locking member 70F do not engage with the engaging teeth 32cF of the upper retainer 31F. As a result, the reel 80F rotates freely, and the rope 4 can be fed out by pulling the rope 4.

[0252] In addition, in this embodiment, the locking release component 60F and the locking release component 70F are formed from different components, but they can also be formed integrally in the same way as in the above embodiment.

[0253] (Variation Example 1)

[0254] Reference Figure 32 The adjustment mechanism 3G in Modification 1 will be described. The structures of the motion transmission part and the motion separation part of the adjustment mechanism 3G are different. In Embodiment 3, a force-applying member 56 is provided below the moving member 50F, and the moving member 50F is force-applied toward the rotating operation member 40F. However, in this modification, the rotating operation member 40G is force-applied toward the moving member 50G.

[0255] Specifically, the adjusting mechanism 3G also includes a cover 48G that engages with a recess 46G provided on the upper surface of the rotating operating member 40G. A force-applying member 56G is provided between the recess 46G and the cover 48G of the rotating operating member 40G to apply downward force to the rotating operating member 40G. Therefore, if the rotating operating member 40G is rotated under a load exceeding a certain threshold, the drive gear 43 of the rotating operating member 40G rotates past the driven gear 53 of the moving member 50G. In this modified example, when the rotating operating member 40G is idling, it moves up and down.

[0256] <Implementation Method 4>

[0257] Reference Figure 33 , Figure 34The adjustment mechanism 3H in Embodiment 4 will be described in detail. Only the differences from the adjustment mechanism 3C shown in Embodiment 2 will be explained in detail. This embodiment differs in that it does not include a rotation operation member but instead provides a force-applying member 110H that applies force to the reel 80C in the winding direction. The adjustment mechanism 3H is installed in various parts of childcare-related appliances, and in the following description, it will be explained in detail... Figure 33 The upper part of the paper is used as the upper part of the adjustment mechanism 3H, and the lower part of the paper is used as the lower part of the adjustment mechanism 3H.

[0258] The adjustment mechanism 3H of this embodiment includes a rope 4, a retainer 30C, a locking release component 60C, a locking component 70C, a winding shaft 80C, and a force application component 110H. The adjustment mechanism 3H can automatically wind the slack rope 4.

[0259] The force applied by the force-applying component 110H is set to be smaller than the force required for the movable part to move downward in the vertical direction. The force will be explained in detail in the description of the operation. The force-applying component 110H is, for example, a coiled spring wound into a helical shape. One end of the force-applying component 110H located radially inward is fixed to the reel 80C, and the other end located radially outward is fixed to the upper retainer 31C. Thus, the reel 80C is always subjected to force in the winding direction.

[0260] In addition, in this embodiment, a coil spring is used as the force-applying component 110H, but the force-applying component 110H can be any component that applies force in a way that causes the spool 80C to rotate in the winding direction of the rope 4. For example, it can also be other springs, or other force-applying components that exert elastic force.

[0261] As described above, the locking member 70C is a one-way clutch mechanism that allows the spool 80C to rotate in the winding direction of the rope 4 and prevents the spool 80C from rotating in the feeding direction of the rope 4. The one-way clutch mechanism can be a structure with an action transmission part and an action separation part as described above, such as the drive gear part 43 and the driven gear part 53, or it can be the same as the structure described in Embodiment 2.

[0262] The engaging pawl 72C of the locking member 70C is a spool locking pawl that locks the rotation of the spool 80C. The spool locking pawl can move between a first position where it engages with the portion rotating with the spool 80C, preventing rotation of the spool 80C, and a second position where it disengages from the portion rotating with the spool 80C, allowing rotation of the spool 80C. This action is achieved by the locking member 70C sliding up and down, as... Figure 14 As shown in parts (A) and (B).

[0263] The locking member 70C slides up and down, which is achieved by the locking release member 60C. The locking release member 60C is a member that brings the locking member 70C to the second position, allowing the scroll 80C to rotate freely.

[0264] Reference Figure 33 The operation of the child seat 1C, which is a childcare-related device, using the adjustment mechanism 3H in Embodiment 4, will be described. The basic structure of the child seat 1C used in this embodiment is similar to... Figure 3 The child seat 1B is roughly the same.

[0265] like Figure 34 As shown, an adjustment mechanism body 5H is provided at the upper end of the backrest 22 of the child seat 1C. The rope 4 is installed on the rotating part 28 of the pop-up mechanism 27 of the shoulder strap 23. The pop-up mechanism 27 of the shoulder strap 23 fixes the shoulder strap 23 in a manner that allows the seat 20 to be open, so that the shoulder strap 23 will not become an obstacle when the child is sitting.

[0266] from Figure 34 The state of part (A) releases the connection of buckle 26, as follows: Figure 34 As shown in part (B), when the shoulder strap 23 is moved upward, the rope 4 connected to the rotating part 28 loosens. A force-applying component 110H is provided in the adjustment mechanism 3H to apply force to the roller 80C in the winding direction. Figure 33 The force-applying component 110H is set to exert a smaller force than that exerted by the shoulder strap 23 and the spring mechanism 27 due to their own weight to move downward in the vertical direction. In other words, if the shoulder strap 23 and the spring mechanism 27 no longer exert a force to move downward in the vertical direction, the force-applying component 110H causes the spool 80C to rotate and wind the rope 4.

[0267] Because the force-applying component 110H is subjected to force in the winding direction, therefore... Figure 34 As shown in section (C), the slack rope 4 is wound around the reel 80C. Thus, the user can wind the slack rope 4 without any work, allowing the child to sit and get up smoothly.

[0268] After the child is seated in the child seat 1C, such as Figure 34 As shown in section (D), the operating part 61C of the locking release component 60C releases the locks on the locking component 70C and the reel 80C. The force applied by the force-applying component 110H is less than the force required by the shoulder strap 23 and the spring-loaded mechanism 27 to move downwards in the vertical direction; therefore, the weight of the shoulder strap 23 and the spring-loaded mechanism 27 automatically pulls out the rope 4. Finally, the shoulder strap 23 is connected using the buckle 26.

[0269] Furthermore, in this embodiment, the movable parts are the spring-loaded mechanism 27 of the shoulder strap 23 and the shoulder strap 23, but any component that moves downward in the vertical direction by its own weight is acceptable. For example, in the tilting mechanism of a stroller, the backrest can be a movable part, and in the height adjustment of the headrest of an infant carrier, the headrest can also be a movable part.

[0270] Furthermore, the movable part moves downward in the vertical direction, but this downward movement can be vertical, not only perpendicular to the horizontal plane, but also inclined downward. Moreover, the force that causes the movable part to move downward in the vertical direction can include not only the weight of the movable part itself, but also forces such as springs that cause the movable part to move downward in the vertical direction.

[0271] In addition, in this embodiment, the locking release component 60C and the locking component 70C are different components, but the locking release component 60C and the locking component 70C can also be provided as a single unit.

[0272] The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the embodiments shown in the drawings. Various modifications and variations can be applied to the embodiments shown in the drawings within the same or equivalent scope as the present invention.

Claims

1. A childcare-related appliance comprising a fixed part, a movable part movable relative to the fixed part, and an adjustment mechanism for adjusting the position or shape of the movable part. The adjustment mechanism has: A rope that connects the fixed part to the movable part; The reel can rotate freely in both directions, and the position or shape of the movable part can be changed by the winding and feeding of the rope. A rotating operating component for manually operating the rotation of the spool; A movable component is disposed between the reel and the rotating operating component, and is movable along the rotation axis of the reel; as well as The force-applying component applies force to the moving component on the rotating operating component; The rotary operating component has an upper surface and a back surface, and a drive gear is provided protruding from the back surface. The moving component includes a driven gear that meshes with the driving gear; Normally, the drive gear meshes with the driven gear, and the rotational motion of the rotating operating component is transmitted to the spool, causing the rotating operating component and the spool to rotate together. When a load of a certain amount or more is applied to the rotating operating component, the moving component will resist the force applied by the force-applying component and move along the direction of the rotation axis, thereby causing the driving gear and the driven gear to disengage, and the rotational motion of the rotating operating component to be not transmitted to the reel, so that the rotating operating component will idle.

2. The childcare-related equipment according to claim 1, wherein, The reel includes a reel body for winding and feeding the rope.

3. The childcare-related equipment according to claim 1, wherein, The drive gear section includes a first inclined portion that slopes in the winding direction from the spool toward the rotating operating component and a second inclined portion that slopes in the feeding direction from the spool toward the rotating operating component. The angle of the first inclined portion relative to the winding direction is smaller than the angle of the second inclined portion relative to the delivery direction.

Images