CN115817619A - Children's article and back adjustment mechanism thereof - Google Patents
Children's article and back adjustment mechanism thereof Download PDFInfo
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- CN115817619A CN115817619A CN202211432968.2A CN202211432968A CN115817619A CN 115817619 A CN115817619 A CN 115817619A CN 202211432968 A CN202211432968 A CN 202211432968A CN 115817619 A CN115817619 A CN 115817619A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D13/00—Other nursery furniture
- A47D13/02—Baby-carriers; Carry-cots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/12—Perambulator bodies; Equipment therefor involving parts that are adjustable, attachable or detachable
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- Public Health (AREA)
- Chemical & Material Sciences (AREA)
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
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Abstract
The invention discloses a children article and a backrest adjusting mechanism thereof, wherein the backrest adjusting mechanism comprises two adjusting belts and an adjusting device, the two adjusting belts are respectively connected with the adjusting device, each adjusting belt is provided with a first section and a second section which are connected along the length direction of the adjusting belt, and the thickness of the second section is smaller than that of the first section; the adjusting device is provided with a locking state and an unlocking state, and when the adjusting device is in the locking state, if the adjusting device is positioned at the first section, the adjusting device cannot relatively slide along the length extending direction of the first section; if the adjusting device is positioned at the second section, the adjusting device can relatively slide along the length extending direction of the second section; when the adjusting device is in the unlocking state, the adjusting device can slide relatively along the length extending direction of the first section and the second section. The invention can avoid the locking of the adjusting device at the second section, effectively avoids the state of the least stability of the children products and improves the safety of the children products in use.
Description
Technical Field
The invention relates to the field of children products, in particular to a children product and a backrest adjusting mechanism thereof.
Background
In various children's articles such as children's shallow, children sleep basket, children's seat, the back of adjustable every single move angle is very common, can adapt to children or sit or the different gesture demands of lying. Generally, in consideration of stability and safety of the child product during use, the "worst angle" of the backrest during angle adjustment is worth paying attention to, and within the angle range, the front-back offset distance between the center of gravity of a child leaning on the backrest and the center of gravity of the child product is large, so that the child product is prone to toppling backwards, and potential safety hazards exist. According to practical experience and development tests, the "worst angle" (angle to the horizontal in front) of a stroller is typically around 149 °. In the prior art, some children products can only realize the 'half lying' function, and the maximum inclination angle of the backrest does not exceed 130 degrees, so that the problem of the 'worst angle' is not involved; in other children products capable of realizing the 'full-lying' function, the adjusting range of the inclination angle of the backrest is about 90-160 degrees, at the moment, the 'worst angle' cannot be completely avoided in the adjusting process of the backrest, and inexperienced parents can adjust the backrest to an unstable angle range, so that potential safety hazards are caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a backrest adjusting mechanism for a children product, which can effectively avoid the 'worst angle' of a backrest and improve the stability and safety of the children product.
In order to achieve the purpose, the invention adopts the technical scheme that:
a backrest adjusting mechanism for children articles comprises a body and a backrest rotationally arranged on the body, the backrest adjusting mechanism comprises two adjusting belts which are respectively arranged at the left side and the right side of the backrest, the two adjusting belts are respectively connected with the body, the backrest adjusting mechanism further comprises an adjusting device, the two adjusting belts are respectively connected with the adjusting device, the adjusting device is positioned at the rear side of the backrest,
each adjusting belt is provided with at least one group of first sections and second sections which are connected along the length direction of the adjusting belt, and the thickness of each second section is smaller than that of each first section;
the adjusting device is provided with a locking state and an unlocking state, and when the adjusting device is in the locking state, if the adjusting device is positioned at the first section, the adjusting device cannot relatively slide along the length extending direction of the first section; if the adjusting device is positioned at the second section, the adjusting device can slide relatively along the length extension direction of the second section;
when the adjusting device is in an unlocked state, the adjusting device can slide relatively along the length extending direction of the first section and the second section.
In some embodiments, each of the adjusting belts has a connecting end and a free end respectively disposed at two ends different from each other in the length direction, the connecting end is connected to the body, the first section is located at a side close to the connecting end, and the second section is located at a side close to the free end.
In some embodiments, each of the adjusting belts has a third section, the first section, the second section and the third section are connected in sequence along the length direction of the adjusting belt, and the thickness of the second section is smaller than that of the third section; when the adjusting device is in a locked state, if the adjusting device is positioned at the third section, the adjusting device cannot relatively slide along the length extending direction of the third section; when the adjusting device is in an unlocked state, the adjusting device can slide relatively along the length extending direction of the third section.
In some embodiments, the backrest has a backrest surface for supporting a child, the angle between the backrest surface and the horizontal plane being no greater than 145 ° when the adjustment means is simultaneously located at the first sections of the two adjustment straps; when the adjusting device is simultaneously positioned at the third sections of the two adjusting belts, the included angle between the backrest surface and the horizontal plane is more than 150 degrees.
In some embodiments, the adjusting device comprises a locking member and a fitting member, the locking member and the fitting member are movably arranged relatively, a gap is formed between the locking member and the fitting member, and two adjusting belts are simultaneously arranged in the gap in a penetrating manner; when the adjusting device is in a locking state, the gap has a first width which is larger than the sum of the thicknesses of the two second sections, and the locking piece and the matching piece can form clamping on the two first sections; when the adjustment device is in the unlocked state, the gap has a second width that is greater than the sum of the thicknesses of the two first segments.
In some embodiments, the adjusting device includes a locking member and a mating member, the locking member and the mating member are movably disposed, two gaps are formed between the locking member and the mating member, and one adjusting belt is inserted into each gap; when the adjusting device is in a locking state, each gap has a first width, the first width is larger than the thickness of one second section, and the locking piece and the matching piece can form respective clamping on the two first sections; when the adjusting device is in an unlocked state, each gap has a second width that is greater than the thickness of one of the first sections.
In some embodiments, the locking member is movable in a first direction relative to the mating member, the mating member has two locking portions disposed on two different sides of the locking member in a second direction, the locking member has two locking portions disposed on two different sides of the second direction, and the locking portions on the same side form the gap with the mating member, wherein the first direction is a common extending direction of the two adjustment bands, and the second direction is a common thickness direction of the two adjustment bands; when the adjusting device is in a locking state, the locking part and the matching piece on the same side can clamp the adjusting belt positioned between the locking part and the matching piece; when the adjusting device is in an unlocked state, the locking part is relatively far away from the mating part along the first direction; the adjusting device further comprises a first resilient member for providing a force required for the locking portion to move relatively close to the mating member in the first direction.
In some embodiments, each of the locking portions extends gradually obliquely toward the second direction along the first direction, each of the mating pieces extends gradually obliquely toward the second direction along the first direction, and the locking portions and the mating pieces on the same side have oblique extending directions parallel to each other; along the first direction, a first passage opening with a short distance and a second passage opening with a long distance are arranged between the two fitting parts, and the first elastic element is used for providing acting force required by the locking element to move from the second passage opening to the first passage opening.
In some embodiments, each of the adjustment belts has a connection end connected to the body, each of the locking portions has first teeth protruding toward the mating member on the same side, the first teeth have at least two teeth spaced apart in the first direction, and each of the first teeth extends from the locking member to be gradually inclined toward a side away from the connection end; each of the mating pieces has a second convex tooth protruding toward the locking portion on the same side, the second convex tooth has at least two teeth arranged at intervals along the first direction, and each of the second convex teeth gradually extends from the mating piece toward one side away from the connecting end in an inclined manner.
In some embodiments, adjusting device still includes the unblock piece, the unblock piece can follow the third direction for the locking piece motion, the third direction with first direction two liang of perpendiculars in second direction, the unblock piece has the orientation the first inclined plane of locking piece, the locking piece has the orientation the second inclined plane of first inclined plane, first inclined plane with the second inclined plane is followed respectively the third direction is gradually towards the first direction slope extends, first inclined plane with the extending direction on second inclined plane is parallel to each other, adjusting device still includes and is used for providing the unblock piece is followed the third direction is kept away from relatively the second elastic component of the required effort of locking piece motion.
It is another object of the present invention to provide a child product with improved stability and safety. In order to achieve the purpose, the invention adopts the technical scheme that: a children article comprises a body, a backrest rotationally arranged on the body, and a backrest adjusting mechanism.
Due to the application of the technical scheme, the children product and the backrest adjusting mechanism thereof provided by the invention have the advantages that the special structural design is carried out on the adjusting belt, and through calculation and test, when the adjusting device is positioned at the second section of the adjusting belt, the backrest is positioned at the worst angle, the gravity center of the children product is unstable, and the dumping danger exists. The invention thins the second section, can avoid the locking of the adjusting device at the second section, namely, the adjusting device can not be stably locked at the second section, the backrest can not be used at the most unfavorable angle, the adjusting device can only be locked at the thicker position of the first section and the like, and even the parents with insufficient experience can not generate misoperation, thereby effectively avoiding the state of the least unfavorable stability of the children products and improving the safety of the children products when in use.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic side view of a child's article according to one embodiment of the invention;
FIG. 2 is a perspective view of the child product of this embodiment;
FIG. 3 is a schematic top view of the backrest adjustment mechanism of the present embodiment, wherein the adjustment device is located at the first segment;
FIG. 4 is a schematic top view of the backrest adjustment mechanism of the present embodiment, wherein the adjustment device is located at the second segment;
FIG. 5 is a schematic top view of the backrest adjustment mechanism of the present embodiment, wherein the adjustment device is located at the third segment;
FIG. 6 is a partially exploded perspective view of the backrest adjustment mechanism of the present embodiment;
FIG. 7 is an enlarged view of the portion A of FIG. 6;
FIG. 8 is a schematic longitudinal sectional exploded perspective view of the adjustment device of this embodiment;
FIG. 9 is a schematic top view of the inner portion of the adjustment device of this embodiment in a locked position at the first stage;
FIG. 10 is a schematic top view of the interior of the adjustment device in the first section in an unlocked state in accordance with the present embodiment;
FIG. 11 is a schematic top view of the inner portion of the adjustment device in the locked position at the second section in accordance with the present embodiment;
FIG. 12 is a longitudinal cross-sectional view of the adjustment device in the locked state in accordance with the present embodiment;
FIG. 13 is a longitudinal cross-sectional view of the adjustment device in an unlocked state in accordance with the present embodiment;
FIG. 14 is a schematic side view of another embodiment of a backrest adjustment mechanism;
FIG. 15 is a schematic top view of the backrest adjustment mechanism of FIG. 14;
FIG. 16 is a schematic side view of a further embodiment of a back adjustment mechanism;
FIG. 17 is a top schematic view of the backrest adjustment mechanism of FIG. 16;
wherein: 100. a backrest adjustment mechanism; 200. a body; 210. a push rod; 300. a backrest; 1001. a center line of rotation; x, a first direction; y, a second direction; z, a third direction;
110. an adjustment belt; 110a, a connecting end; 110b, free end; 111. a first stage; 112. a second stage; 113. a third stage; 120. an adjustment device; 120a, a first passage port; 120b, a second access opening; 121. a housing; 121a, a guide hole; 1211. a limiting flange; 122. a locking member; 122a, a second inclined plane; 1221. a first lobe; 123. a mating member; 1231. a second lobe; 124. unlocking the lock; 124a, a first inclined plane; 1241. a limiting hook; 125. a first elastic member; 126. a second elastic member; 130. the handle is operated.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the invention may be more readily understood by those skilled in the art.
Referring to fig. 1 and 2, the present embodiment provides a children's product and a backrest adjusting mechanism 100 thereof, the children's product at least further includes a body 200 and a backrest 300 rotatably disposed on the body 200. The child article in this embodiment is specifically exemplified by a stroller, and since the stroller is often pushed and moved outdoors when in use, the stability performance of the stroller is particularly important. In other embodiments, the backrest adjusting mechanism 100 is suitable for children products, such as cribs, children's beds, children's seats, and the like, which have a backrest pitch angle adjusting function.
Without specific reference, the descriptions of the orientations of the child product, such as front-back, left-right, up-down, etc., are based on fig. 1, and the orientation of the child product, which is observed by a parent pushing behind the child product when the child product is placed on a horizontal plane for normal use, is only defined for convenience of description and understanding, and does not represent that the child product and the backrest adjusting mechanism 100 thereof must have a specific use direction, and should not be construed as limiting the present invention.
In this embodiment, the main body 200 of the stroller is a stroller frame, the main body 200 includes two left and right push rods 210, the backrest 300 is disposed between the two push rods 210, a lower portion of the backrest 300 is connected to the main body 200 to be relatively rotatable around a rotation center line 1001, and the rotation center line 1001 extends in a left and right direction of the main body 200. It should be noted that, in order to clearly show the structures of the components, the backrest 300 in the figure only shows the backrest rod at the periphery thereof, and in an actual product, the backrest 300 further includes a support structure such as a cloth cover or a backup plate connected to the backrest rod; in other embodiments, the specific shape of the backrest 300 can be other known techniques, and the invention is not limited thereto.
In this embodiment, the backrest 300 has at least a relatively upright sitting position and a relatively horizontal lying position, and the backrest adjusting mechanism 100 is used for adjusting the pitch angle of the backrest 300. The backrest adjusting mechanism 100 herein can specifically realize stepless adjustment of the backrest 300 within a certain angle, and at the same time, the backrest adjusting mechanism 100 can avoid the "worst angle" of the backrest 300, and does not allow the backrest 300 to be used at a position where the center of gravity is unstable, thereby improving the safety of the stroller in use.
Referring to fig. 1 to 6, the backrest adjusting mechanism 100 includes an adjusting device 120 and two adjusting belts 110, the two adjusting belts 110 are respectively disposed on the left and right sides of the backrest 300, the two adjusting belts 110 are respectively connected with the body 200, the two adjusting belts 110 are respectively connected with the adjusting device 120, and the adjusting device 120 is located on the rear side of the backrest 300. In this embodiment, each of the adjusting belts 110 has a connecting end 110a and a free end 110b respectively disposed at two ends different from each other in the length direction, wherein the connecting end 110a is connected to the body 200, specifically, connected to the push rod 210 on the same side, and the free end 110b is located at the rear side of the backrest 300. The adjusting device 120 can slide between the connecting end 110a and the free end 110b of the two adjusting belts 110 at the same time. In this way, the portion of the adjusting belt 110 between the adjusting device 120 and the two connecting ends 110a can form a support for the backrest 300, and the shorter the length of the adjusting belt 110 is, the smaller the included angle between the backrest 300 and the front horizontal plane is, and the closer the backrest 300 is to the sitting position; conversely, the longer the length of the partial adjusting belt 110, the larger the angle between the backrest 300 and the front horizontal plane, and the closer the backrest 300 is to the lying position. The caring adult can change the length of the adjusting belt 110 between the adjusting device 120 and the two connecting ends 110a by changing the relative position of the adjusting device 120 on the adjusting belt 110, and then can adjust the pitch angle of the backrest 300. In this embodiment, the free ends 110b of the two adjusting belts 110 are fixed together, and further provided with an operating handle 130 for the parents to hold, thereby facilitating the operation. In other embodiments, the two adjustment bands 110 may be two portions of the same band integrally disposed; in other embodiments, the free ends 110b of the two adjustment straps 110 may be separated from each other and not connected to each other.
Referring to fig. 2 to 8, in order to describe the specific structure of the adjusting device 120 more clearly, in the present embodiment, an XYZ three-dimensional coordinate system is established with reference to the adjusting device 120, wherein a first direction X, a second direction Y, and a third direction Z are perpendicular to each other, the first direction X is an extending direction common to the two adjusting belts 110, and the second direction Y is a thickness direction common to the two adjusting belts 110. The backrest adjustment mechanism 100 shown in fig. 2 is in a state when an external force is applied to pull the operation knob 130. In practical use, since the adjusting belt 110 is a flexible belt, when no external force is applied, the free end 110b will naturally sag to drive the adjusting device 120 connected to the adjusting belt 110 to move, and the specific orientation of the adjusting device 120 will be influenced by the self-gravity and the angle of the backrest 300, so that the XYZ three-dimensional coordinate system will change in an absolute space, and cannot be completely described by concepts of front-back, left-right, up-down, and the like in the absolute space. Further, referring to fig. 2, when the backrest adjusting mechanism 100 is installed on a children's product for use, the two connecting ends 110a are respectively disposed at the left and right sides of the backrest 300 and extend toward each other, and each adjusting strap 110 generally undergoes a change in angle of binding at the adjusting device 120 from the connecting end 110a to the free end 110b, so that there are "an extending direction common to the two adjusting straps 110" and "a thickness direction common to the two adjusting straps 110" at the adjusting device 120.
Referring to fig. 3 to 5, in the embodiment, two adjusting belts 110 are identical and symmetrically arranged, each adjusting belt 110 has a first section 111, a second section 112 and a third section 113 connected in sequence along the length direction thereof, wherein the first section 111 is located on the side closest to the connecting end 110a, the second section 112 is located in the middle, and the third section 113 is located on the side closest to the free end 110 b. The thickness of the first section 111 is equal or approximately equal to the thickness of the third section 113, and the thickness of the second section 112 is minimal. In this embodiment, the second section 112 occupies the shortest length, and the first section 111 occupies the longest length. In other embodiments, the first section 111 and the second section 112 may be provided with more than one set, for example, when the backrest 300 has a plurality of discrete angle ranges to be avoided, the first section 111 and the second section 112 with different thicknesses may be alternately provided on the adjusting belt 110.
In this embodiment, the adjusting device 120 has a locked state and an unlocked state. When the adjusting device 120 is in the locked state, if the adjusting device 120 is located at the first section 111, the adjusting device 120 cannot slide relatively along the length extending direction of the first section 111; if the adjusting device 120 is located at the second section 112, the adjusting device 120 can slide relatively along the length extension direction of the second section 112; if the adjusting means 120 is located at the third segment 113, the adjusting means 120 cannot slide relatively along the length extension direction of the third segment 113. When the adjusting device 120 is in the unlocked state, the adjusting device 120 can slide relatively along the length extension direction of any one of the first section 111, the second section 112, and the third section 113. In other words, the adjusting device 120 can lock and unlock the first section 111 and the third section 113, so as to adjust the angle of the backrest 300; however, the adjusting device 120 cannot be locked at the second section 112, and when the adjusting device 120 slides to the second section 112, it can only choose to continue sliding to the first section 111 or the third section 113, and cannot stay at the second section 112 to be used.
Referring to fig. 1 and 2, in the present embodiment, the backrest 300 has a backrest surface (not shown) for supporting a child. When the adjusting device 120 is simultaneously positioned at the first section 111 of the two adjusting belts 110, the included angle between the backrest surface and the front horizontal plane is not more than 145 degrees; when the adjusting device 120 is simultaneously located at the third sections 113 of the two adjusting belts 110, the included angle between the backrest surface and the horizontal plane is more than 150 °. That is, in the present embodiment, the thickness reduction of the second section 112 prevents the locking of the adjusting device 120 at the second section 112, and prevents the backrest 300 from being used in an unstable angle range of 145 ° to 150 °. In other embodiments, the range of angles specifically avoided by the second section 112 may be adjusted, generally to cover the industry-specified "worst-case angle," i.e., 149 °. In some embodiments, the adjusting belt 110 may not be provided with the third segment 113, the adjusting device 120 can only be locked and adjusted on the first segment 111, and after the adjusting device 120 slides to the second segment 112, the adjusting device will directly slide to the bottommost portion of the adjusting belt 110 under the action of gravity and be supported by the free end 110b or the operating handle 130, and at this time, the backrest 300 is directly converted into a stable full-lying state.
Referring to fig. 6 to 13, in the present embodiment, the adjusting device 120 specifically includes a housing 121, a locking member 122, a matching member 123, an unlocking member 124, a first elastic member 125, a second elastic member 126, and the like. The housing 121 is a casing of the whole adjusting device 120, and plays a role of mounting and accommodating other components, and the housing 121 is provided with guide holes 121a through which the two adjusting belts 110 can pass respectively. In the view shown in fig. 6, the housing 121 has an upward opening, and the unlocking member 124 is disposed at the opening so as to be relatively movable in the third direction Z. Referring to fig. 8 and 12, the opening of the housing 121 has a limit flange 1211, the unlocking member 124 has a limit hook 1241 hooked on the limit flange 1211 in a matching manner, and the limit flange 1211 and the limit hook 1241 form a limit structure between the unlocking member 124 and the housing 121, so that the unlocking member 124 can be prevented from being separated from the housing 121 along the third direction Z.
In this embodiment, the locking member 122 and the mating member 123 are disposed in a manner capable of moving relatively, two gaps are formed between the locking member 122 and the mating member 123, and each gap is penetrated by one of the adjusting bands 110. Referring to fig. 9 and 11, when the adjusting device 120 is in the locked state, each gap has a first width, which is greater than the thickness of one of the second segments 112, and the locking member 122 and the engaging member 123 can form a clamping action on the two first segments 111 respectively. Referring to fig. 10, when the adjustment device 120 is in the unlocked state, each gap has a second width that is greater than the thickness of one of the first segments 111. Similarly, when the adjusting device 120 is in the locked state, the locking member 122 and the engaging member 123 can form respective clamping of the two third segments 113; and when the adjustment device 120 is in the unlocked state, the second width is greater than the thickness of one of the third segments 113. That is, no matter the adjusting device 120 is in the locked state or the unlocked state, the locking member 122 and the engaging member 123 cannot form a clamp on the second section 112, and the adjusting device 120 cannot be fixed at the second section 112.
Further, referring to fig. 9 to 11, in the present embodiment, the locking member 122 is capable of moving relative to the mating member 123 along the first direction X, the mating member 123 has two locking portions respectively disposed on two different sides of the locking member 122 in the second direction Y, the locking member 122 has two locking portions respectively disposed on two different sides of the locking member 122 in the second direction Y, and the locking portions on the same side and the mating member 123 form the above-mentioned gap. When the adjusting device 120 is in the locked state, the locking part and the fitting member 123 on the same side can clamp the adjusting belt 110 located therebetween; when the adjustment device 120 is in the unlocked state, the locking portion is relatively distant from the mating piece 123 in the first direction X. In this embodiment, the first elastic member 125 is used for providing the force required for the locking portion to move relatively close to the mating member 123 in the first direction X, and here, the first elastic member 125 is specifically a compression spring disposed between the locking member 122 and the housing 121.
Referring to fig. 9 to 11, in the present embodiment, each locking portion gradually extends in a direction inclined toward the second direction Y along the first direction X, each mating member 123 gradually extends in a direction inclined toward the second direction Y along the first direction X, the locking portions on the same side and the mating member 123 have inclined extension directions parallel to each other, and the inclined extension directions of the locking portions on both sides are opposite. In the first direction X, the two engaging members 123 have a first passage opening 120a with a relatively short distance therebetween and a second passage opening 120b with a relatively long distance therebetween, and the first elastic member 125 is used for providing a force required for the locking member 122 to move from the second passage opening 120b toward the first passage opening 120 a. In the view shown in fig. 9, the first passage opening 120a is located on the left side, the second passage opening 120b is located on the right side, and the two locking portions of the locking member 122 are formed substantially in the shape of an isosceles trapezoid, and both the locking portions are simultaneously away from the corresponding mating member 123 when the locking member 122 is moved rightward against the elastic force of the first elastic member 125.
In this embodiment, each locking portion has a first protruding tooth 1221 protruding toward the mating member 123 on the same side, the first protruding teeth 1221 have at least two, specifically two, protruding teeth arranged at intervals along the first direction X, and each first protruding tooth 1221 extends obliquely from the locking member 122 gradually toward the side (the right side in fig. 9) away from the connecting end 110 a. Accordingly, each of the fitting members 123 has a second projecting tooth 1231 projecting toward the locking portion on the same side, and the second projecting teeth 1231 have at least two, specifically five, projecting in the first direction X, and each of the second projecting teeth 1231 extends obliquely from the fitting member 123 toward the side away from the connecting end 110 a. As can be seen from fig. 2, when the child product is actually used, the first teeth 1221 and the second teeth 1231 extend in a direction inclined substantially downward. When the backrest adjustment mechanism 100 is installed on a children's product, the adjustment device 120 has a tendency to move downward and the adjustment strap 110 has a tendency to move upward relative to the adjustment device 120 under the weight of the backrest 300. In the view shown in fig. 9, the adjustment strap 110 has a tendency to move to the left relative to the adjustment device 120. At this time, since the inclination directions of the first and second teeth 1221 and 1231 are opposite to the movement tendency direction of the adjustment band 110, the first and second teeth 1221 and 1231 can better perform a friction supporting function, prevent the adjustment band 110 from slipping off, and make the locking of the adjustment device 120 more stable.
Referring to fig. 8, 12 and 13, in the present embodiment, the unlocking member 124 can move relative to the locking member 122 along the third direction Z. The unlocking member 124 has a first inclined surface 124a facing the locking member 122, the locking member 122 has a second inclined surface 122a facing the first inclined surface 124a, the first inclined surface 124a and the second inclined surface 122a respectively extend along the third direction Z and gradually incline towards the first direction X, and the extending directions of the first inclined surface 124a and the second inclined surface 122a are parallel to each other. The second elastic member 126 is used for providing a force required for the unlocking member 124 to move relatively away from the locking member 122 in the third direction Z, and here, the second elastic member 126 is embodied as two compression springs disposed between the unlocking member 124 and the housing 121. In the view shown in fig. 12, the first inclined surface 124a and the second inclined surface 122a respectively extend from top to bottom and gradually incline forward, and the second elastic member 126 is used for driving the unlocking member 124 to move upward. In this way, when the keeper presses the unlocking member 124 to move downward along the third direction Z, the unlocking member 124 can drive the locking member 122 to move away from the mating member 123 along the first direction X (i.e., move to the right in fig. 12) by the first inclined surface 124a, so that the adjusting device 120 is switched to the unlocking state. When the pressure on the unlocking member 124 is removed, the unlocking member 124 moves upward and the locking member 122 moves leftward under the cooperation of the first elastic member 125 and the second elastic member 126, and the adjusting device 120 automatically changes to the locked state.
It should be noted that, in other embodiments, the adjusting device 120 may have a different structure from that in the present embodiment. For example, fig. 14 and 15 show one kind of adjusting device 120, fig. 16 and 17 show another kind of adjusting device 120, and the specific internal structures of both kinds of adjusting devices 120 can adopt the prior art, which is the biggest difference from the adjusting device 120 in the present embodiment: the adjusting device 120 here includes a locking member 122 and a fitting member 123, the locking member 122 and the fitting member 123 are disposed in a relatively movable manner, a gap is formed between the locking member 122 and the fitting member 123, and two adjusting belts 110 are simultaneously inserted into the gap. When the adjusting device 120 is in the locked state, the gap has a first width, which is greater than the sum of the thicknesses of the two second sections 112, and the locking member 122 and the mating member 123 can form a clamping of the two first sections 111; when the adjustment device 120 is in the unlocked state, the gap has a second width that is greater than the sum of the thicknesses of the two first sections 111. When the two adjusting belts 110 further have the third section 113, the locking member 122 and the fitting member 123 can form a clamping of the two third sections 113 when the adjusting device 120 is in the locked state; when the adjustment device 120 is in the unlocked state, the second width is greater than the sum of the thicknesses of the two third sections 113.
That is, the adjusting device 120 may not be limited to the structure described in the embodiment, but the switching of the adjusting device 120 between the locked state and the unlocked state is realized by clamping and releasing the first segment 111 or the third segment 113 based on the principle that the gap between the locking member 122 and the mating member 123 varies. Further, since the thickness of the second section 112 is significantly smaller than the thickness of the first section 111 and the third section 113, the locking element 122 and the fitting element 123 can not clamp the second section 112 all the time, thereby avoiding the worst angle of the backrest 300.
In summary, the child product and the backrest adjustment mechanism 100 thereof provided in this embodiment can avoid the state where the stability of the child product such as a stroller is the most unfavorable by switching the thickness of the adjustment belt 110, thereby improving the safety of using the child product.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. The utility model provides a back adjustment mechanism for children's articles for use, children's articles for use include the body, set up with rotating back on the body, back adjustment mechanism includes two regulation bands, two the regulation band branch is located the left and right sides of back, two the regulation band respectively with this body coupling, back adjustment mechanism still includes adjusting device, two the regulation band respectively with adjusting device connects, adjusting device is located the rear side of back, its characterized in that:
each adjusting belt is provided with at least one group of first sections and second sections which are connected along the length direction of the adjusting belt, and the thickness of each second section is smaller than that of each first section;
the adjusting device is provided with a locking state and an unlocking state, and when the adjusting device is in the locking state, if the adjusting device is positioned at the first section, the adjusting device cannot relatively slide along the length extending direction of the first section; if the adjusting device is positioned at the second section, the adjusting device can slide relatively along the length extension direction of the second section;
when the adjusting device is in an unlocked state, the adjusting device can slide relatively along the length extending direction of the first section and the second section.
2. The backrest adjustment mechanism for children's products according to claim 1, characterized in that: each adjusting belt is provided with a connecting end and a free end which are respectively arranged at two ends of the adjusting belt, wherein the two ends are different in the length direction of the adjusting belt, the connecting end is connected with the body, the first section is positioned at one side close to the connecting end, and the second section is positioned at one side close to the free end.
3. The backrest adjustment mechanism for children's products according to claim 1, characterized in that: each adjusting belt is provided with a third section, the first section, the second section and the third section are sequentially connected along the length direction of the adjusting belt, and the thickness of the second section is smaller than that of the third section; when the adjusting device is in a locked state, if the adjusting device is positioned at the third section, the adjusting device cannot relatively slide along the length extending direction of the third section; when the adjusting device is in an unlocked state, the adjusting device can slide relatively along the length extending direction of the third section.
4. A back adjustment mechanism for children's products according to claim 3, wherein: the backrest is provided with a backrest surface for supporting a child, and when the adjusting device is simultaneously positioned at the first sections of the two adjusting belts, the included angle between the backrest surface and the horizontal plane is not more than 145 degrees; when the adjusting device is simultaneously positioned at the third sections of the two adjusting belts, the included angle between the backrest surface and the horizontal plane is more than 150 degrees.
5. The backrest adjustment mechanism for children's products according to claim 1, characterized in that: the adjusting device comprises a locking piece and a matching piece, the locking piece and the matching piece can be arranged in a relatively movable mode, a gap is formed between the locking piece and the matching piece, and the two adjusting belts are simultaneously arranged in the gap in a penetrating mode;
when the adjusting device is in a locking state, the gap has a first width which is larger than the sum of the thicknesses of the two second sections, and the locking piece and the matching piece can form clamping on the two first sections; when the adjustment device is in the unlocked state, the gap has a second width that is greater than the sum of the thicknesses of the two first segments.
6. The backrest adjustment mechanism for children's products according to claim 1, characterized in that: the adjusting device comprises a locking piece and a matching piece, the locking piece and the matching piece can be arranged in a relatively movable mode, two gaps are formed between the locking piece and the matching piece, and one adjusting belt penetrates through each gap;
when the adjusting device is in a locking state, each gap has a first width, the first width is larger than the thickness of one second section, and the locking piece and the matching piece can form respective clamping on the two first sections; when the adjusting device is in an unlocked state, each gap has a second width, and the second width is greater than the thickness of one first section.
7. The backrest adjustment mechanism for a children's article according to claim 6, characterized in that: the locking piece can move relative to the matching piece along a first direction, the matching piece is provided with two locking parts which are respectively arranged on two sides of the locking piece, which are different in a second direction, the locking piece is provided with two locking parts which are respectively arranged on two sides of the locking piece, which are different in the second direction, and the gap is formed between the locking parts and the matching piece, wherein the first direction is the common extending direction of the two adjusting belts, and the second direction is the common thickness direction of the two adjusting belts;
when the adjusting device is in a locking state, the locking part and the matching piece on the same side can clamp the adjusting belt positioned between the locking part and the matching piece; when the adjusting device is in an unlocked state, the locking part is relatively far away from the mating part along the first direction; the adjusting device further comprises a first resilient member for providing a force required for the locking portion to move relatively close to the mating member in the first direction.
8. The backrest adjustment mechanism for a children's article according to claim 7, characterized in that: each locking part extends along the first direction and gradually inclines towards the second direction, each matching piece extends along the first direction and gradually inclines towards the second direction, and the locking parts and the matching pieces on the same side are parallel to each other in the inclined extending directions;
along the first direction, a first passage opening with a short distance and a second passage opening with a long distance are arranged between the two fitting parts, and the first elastic element is used for providing acting force required by the locking element to move from the second passage opening to the first passage opening.
9. The backrest adjustment mechanism for a children's article according to claim 7, characterized in that: each adjusting belt is provided with a connecting end connected with the body, each locking part is provided with first convex teeth protruding towards the matching piece on the same side, the first convex teeth are provided with at least two convex teeth arranged at intervals along the first direction, and each first convex tooth extends from the locking piece in an inclined mode towards one side far away from the connecting end; each of the mating pieces is provided with second convex teeth protruding towards the locking part on the same side, the second convex teeth are provided with at least two convex teeth arranged at intervals along the first direction, and each second convex tooth gradually extends from the mating piece in an inclined mode towards one side far away from the connecting end; and/or the presence of a gas in the gas,
adjusting device still includes the deblocking piece, the deblocking piece can follow the third direction for the locking piece motion, the third direction with first direction two liang of verticality of second direction, the deblocking piece has the orientation the first inclined plane of locking piece, the locking piece has the orientation the second inclined plane on first inclined plane, first inclined plane with the second inclined plane is followed respectively the third direction moves towards gradually the first direction slope extends, first inclined plane with the extending direction on second inclined plane is parallel to each other, adjusting device still includes and is used for providing the deblocking piece is followed the third direction is kept away from relatively the second elastic component of the required effort of locking piece motion.
10. A children's article, characterized in that: the children's article comprises a body, a backrest rotatably arranged on the body, and a backrest adjusting mechanism according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211432968.2A CN115817619A (en) | 2022-11-16 | 2022-11-16 | Children's article and back adjustment mechanism thereof |
| PCT/CN2023/127458 WO2024104099A1 (en) | 2022-11-16 | 2023-10-30 | Child product and backrest adjusting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211432968.2A CN115817619A (en) | 2022-11-16 | 2022-11-16 | Children's article and back adjustment mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115817619A true CN115817619A (en) | 2023-03-21 |
Family
ID=85528346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211432968.2A Pending CN115817619A (en) | 2022-11-16 | 2022-11-16 | Children's article and back adjustment mechanism thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115817619A (en) |
| WO (1) | WO2024104099A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024104099A1 (en) * | 2022-11-16 | 2024-05-23 | 好孩子儿童用品有限公司 | Child product and backrest adjusting mechanism thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW516544U (en) * | 2001-09-14 | 2003-01-01 | Link Treasure Ltd | Adjustment apparatus for backrest inclination of baby trolley |
| CN103386906B (en) * | 2012-05-10 | 2016-04-13 | 宝钜儿童用品香港股份有限公司 | Child seat |
| CN204586985U (en) * | 2015-03-25 | 2015-08-26 | 昆山威凯儿童用品有限公司 | Back of perambulator stepless regulation structure |
| KR200483360Y1 (en) * | 2016-11-25 | 2017-05-04 | 주식회사 쭈쭈베베 | Apparatus for adjusting the inclination of seatback for baby carriage |
| CN206384017U (en) * | 2016-12-13 | 2017-08-08 | 好孩子儿童用品有限公司 | Recliner and backrest adjustable seat |
| CN212373465U (en) * | 2020-01-08 | 2021-01-19 | 昆山森夏儿童用品有限公司 | Backrest structure of baby carriage |
| CN212766432U (en) * | 2020-05-25 | 2021-03-23 | 宁波妈咪宝婴童用品制造有限公司 | Stepless single-hand adjusting mechanism for backrest |
| CN212766434U (en) * | 2020-06-03 | 2021-03-23 | 宁波妈咪宝婴童用品制造有限公司 | Ribbon spacing regulating buckle |
| CN115817619A (en) * | 2022-11-16 | 2023-03-21 | 好孩子儿童用品有限公司 | Children's article and back adjustment mechanism thereof |
-
2022
- 2022-11-16 CN CN202211432968.2A patent/CN115817619A/en active Pending
-
2023
- 2023-10-30 WO PCT/CN2023/127458 patent/WO2024104099A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024104099A1 (en) * | 2022-11-16 | 2024-05-23 | 好孩子儿童用品有限公司 | Child product and backrest adjusting mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024104099A1 (en) | 2024-05-23 |
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