Baby feeding bottle with ribs on inner surface of nipple

Abstract

The present application relates to a baby bottle having a teat that has enhanced elasticity against body flexure during feeding use of the bottle. The teat has ribs on its inner surface extending in an oblique direction to enhance its elastic recovery from elongation or contraction during a feeding bottle feeding cycle. Some ribs may extend to the elongated tip of the teat to enhance recovery of the elongated tip from its collapse or compression. The ribs keep the nipple slender while providing sufficient elasticity to enable the nipple to have a desirable tactile sensation while supporting natural feeding bottle feeding actions. The present application also relates to a container of a baby bottle having a rigid cylinder and an elastomer secured to the rigid cylinder. The rigid cylinder has a structure in which an elastic body formed on the rigid cylinder is fixed by an injection molding process.

Description

Technical Field

[0001] This invention relates to a baby bottle, and more specifically, to a baby bottle with a flexible nipple. Background Technology

[0002] Baby bottles are designed to feed infants liquid formula or expressed breast milk. A baby bottle typically includes a container for the liquid, a nipple through which the baby receives milk or formula, and a ring that screws the nipple onto the bottle. These components are usually designed to be easily disassembled to ensure timely and thorough cleaning for hygiene reasons. Baby bottles are also designed to be as simple as possible to facilitate sterilization and maintenance.

[0003] Baby bottle nipples undergo various deformations during use. They are typically designed to mimic a mother's breast, providing comfort and familiarity for the baby while controlling flow to prevent choking or overfeeding. Specifically, when a baby bites the nipple and begins to suck, the nipple slightly compresses due to the baby's sucking motion, releasing milk into the baby's mouth. Additionally, the nipple slightly stretches and elongates as the baby sucks, similar to the shape changes of a mother's breast during breastfeeding. After the initial sucking, there is a brief pause during which the nipple returns to its original shape, allowing the baby to swallow milk before starting the next sucking cycle. To reinforce this natural bottle-feeding cycle, the nipple elastically changes shape during use and returns to its original shape after the feeding cycle ends.

[0004] Furthermore, baby bottle components should be baby-friendly, ideally aesthetically pleasing, and durable enough for long-term use. Therefore, designing baby bottle components that meet these diverse needs and requirements is challenging. Summary of the Invention

[0005] The embodiment relates to a nipple for a baby bottle, having one or more ribs on its inner surface to enhance the nipple's elastic recovery. The nipple includes an elongated tip and a base. One or more flow holes are formed on the elongated tip through which fluid flows. The elongated tip has an inner surface and an outer surface. The base is connected to the elongated tip and is wider than the elongated tip. The base includes an inner surface and an outer surface. The inner surface of the base faces the container of the baby bottle and is connected to the inner surface of the elongated tip. The outer surface of the base faces away from the container and is connected to the outer surface of the elongated tip. The one or more ribs are disposed on at least a portion of the inner surface of the base to enhance the nipple's elastic recovery in its axial direction from elongation or contraction of the base. A portion of the one or more ribs in the inner surface of the base is inclined relative to the axial direction of the nipple.

[0006] In one or more embodiments, a portion of the one or more ribs extends into the inner surface of the elongated tip to enhance the elastic recovery of the elongated tip from collapse or compression in the radial direction of the nipple.

[0007] In one or more embodiments, the one or more ribs, except for a portion thereof, begin and terminate within the inner surface of the base.

[0008] In one or more embodiments, the one or more ribs include three sets of ribs. The ribs located on the inner surface of the base are oriented in different directions.

[0009] In one or more embodiments, the three sets of ribs include a first set of ribs oriented along a first direction and a second set of ribs oriented along a second direction. The projection of the first direction onto a plane perpendicular to the axial direction forms a 120-degree angle with respect to the projection of the second direction onto the same plane.

[0010] In one or more embodiments, the first set of ribs includes a series of adjacent ribs and another series of adjacent ribs, a portion of the series of adjacent ribs extending into the elongated tip, and the other series of adjacent ribs not extending into the elongated tip.

[0011] In one or more embodiments, the nipple further includes at least one check valve in the base.

[0012] In one or more embodiments, the one or more ribs are located between the at least one check valve and the one or more flow orifices.

[0013] In one or more embodiments, in the absence of the one or more ribs, the thickness of the base is between 1.5 mm and 6 mm, and in the absence of the one or more ribs, the thickness of the elongated tip is between 0.5 mm and 1.5 mm.

[0014] In one or more embodiments, the elongated tip, the base, and the one or more ribs form a single unit.

[0015] In one or more embodiments, the elongated tip, the base, and the one or more ribs are made of silicone resin.

[0016] In one or more embodiments, the elongated tip, the base, and the one or more ribs are a single, injection-molded structure.

[0017] In one or more embodiments, the outer surface of the base is formed with a plurality of flow indicators and a mark associated with one of the flow indicators.

[0018] In one or more embodiments, the base further includes a flange that is captured by a collar to secure the nipple to the container.

[0019] The embodiments also relate to a container for a baby bottle, comprising a rigid cylinder and an elastomer attached to the rigid cylinder, the rigid cylinder having a ring extending along the circumference of the rigid cylinder. The rigid cylinder includes: a first side surface in which a screw for securing a collar to the baby bottle is formed; a second side surface opposite to the first side surface; and a top surface connecting the first side surface and the second side surface; the ring extending along the circumference of the second side surface and connected to the second side surface. The elastomer includes: an upper portion having an open end, and being secured to the rigid ring by accommodating the ring of the rigid cylinder within a cavity formed along the upper circumference of the upper portion. The elastomer further includes: a lower portion having a closed end and extending from the upper portion.

[0020] In one or more embodiments, the elastomer is made of silicone resin.

[0021] In one or more embodiments, the thickness of the ring is between 0.3 mm and 0.8 mm.

[0022] In one or more embodiments, the thickness of the top surface of the rigid cylinder is between 0.5 mm and 1.5 mm.

[0023] In one or more embodiments, the first side surface is the outer surface of the container, and the second side surface is the inner surface of the container.

[0024] In one or more embodiments, the ring is connected to the second side surface by a plurality of bridges, wherein each bridge is spaced apart by a predetermined distance.

[0025] In one or more embodiments, a silicon compound layer is deposited on the second side of the ring to enhance the adhesion between the rigid cylinder and the elastomer.

[0026] The embodiment also relates to a container for a baby bottle manufactured using an injection molding process. A rigid cylinder is mounted on a first core. The rigid cylinder has an outer surface, an inner surface located opposite the outer surface, and a top surface connecting the inner surface and the outer surface. The top surface contacts the first core. Relative movement is made between the first core and a second core to place the rigid cylinder within a cavity of the second core. The rigid cylinder is secured within the cavity of the second core by clamping the outer surface of the rigid cylinder to a fixture. A fluid of an elastic material is injected between the first core and the second core, the injected fluid contacting the inner surface of the rigid cylinder. Leakage of the fluid is prevented by the contact between the top surface and the first core and the contact between the outer surface and the fixture. The injected fluid is then cured.

[0027] In one or more embodiments, the outer surface of the rigid cylinder is formed with screws.

[0028] In one or more embodiments, the rigid cylinder is fixed by moving the clamp in a direction perpendicular to the relative movement direction between the first core and the second core.

[0029] The embodiment also relates to a baby bottle including a nipple having one or more ribs on its inner surface. The baby bottle includes a nipple and a container. The nipple includes an elongated tip, a base, and one or more ribs. One or more flow holes are formed in the elongated tip through which fluid flows, and the elongated tip has an inner surface and an outer surface. The base is connected to the elongated tip and is wider than the elongated tip. The base includes an inner surface and an outer surface, the inner surface of the base facing the container of the baby bottle and connected to the inner surface of the elongated tip. The outer surface of the base facing away from the container and connected to the outer surface of the elongated tip. The one or more ribs enhance the elastic recovery of the nipple from elongation or contraction of the base in the axial direction of the nipple. A portion of the one or more ribs in the inner surface of the base is inclined relative to the axial direction of the nipple.

[0030] In one or more embodiments, the baby bottle further includes a collar for sealing and securing the nipple to the container.

[0031] In one or more embodiments, the container includes a rigid cylinder and an elastomer. The rigid cylinder includes: a first side surface in which a screw is formed for securing a collar to the baby bottle; a second side surface opposite to the first side surface; a top surface connecting the first side surface and the second side surface; and a ring extending along the circumference of the second side surface and connected to it. The elastomer includes: an upper portion having an open end and secured to the rigid ring by accommodating the ring of the rigid cylinder within a cavity formed along the upper circumference of the upper portion; and a lower portion having a closed end and extending from the upper portion. Attached Figure Description

[0032] Figure 1 This is an exploded view of a baby bottle according to one embodiment.

[0033] Figure 2 This is a perspective view of a nipple for a baby bottle according to one embodiment.

[0034] Figure 3 This is another perspective view of a baby bottle nipple according to one embodiment.

[0035] Figure 4 This is a bottom view of the nipple of a baby bottle according to one embodiment.

[0036] Figure 5 This is a transparent image of a nipple for a baby bottle according to one embodiment.

[0037] Figure 6 This is a side view of a nipple for a baby bottle according to one embodiment.

[0038] Figure 7 According to one embodiment, along Figure 6 A cross-sectional view of the nipple of a baby bottle cut by A-A' line cutting.

[0039] Figure 8 According to one embodiment, along Figure 6 A cross-sectional view of a baby bottle nipple cut by B-B' wire cutting.

[0040] Figures 9A to 9C This is a diagram showing the curvature of a nipple according to one embodiment.

[0041] Figure 10 This is a perspective view of a baby bottle container according to one embodiment.

[0042] Figure 11A This is a perspective view of a rigid cylinder of a container according to one embodiment.

[0043] Figure 11B This is a perspective view of a rigid cylinder of a container according to another embodiment.

[0044] Figure 12 According to one embodiment Figure 11A A cross-sectional view of a rigid cylinder.

[0045] Figure 13 This is a cross-sectional view of a container and a mold for injection molding according to one embodiment.

[0046] Figures 14A to 14F This is a diagram illustrating the process of performing injection molding to form a container according to one embodiment. Detailed Implementation

[0047] Embodiments are described herein with reference to the accompanying drawings. However, the principles disclosed herein can be implemented in many different forms and should not be construed as limited to the embodiments presented herein. Details of well-known features and techniques may be omitted in the description to avoid unnecessarily obscuring the characteristics of the embodiments. In the drawings, the same reference numerals denote the same elements. For clarity, the shapes, sizes, and areas of the drawings may be exaggerated.

[0048] The embodiments relate to a baby bottle having a nipple that has enhanced elasticity against body bending during bottle feeding. The nipple has ribs extending in an oblique direction on its inner surface to enhance its elastic recovery from elongation or contraction during the bottle feeding cycle. Some ribs may extend to the elongated tip of the nipple to enhance the recovery of the elongated tip from its collapse or compression. The ribs keep the nipple slender while providing sufficient elasticity to provide an ideal tactile feel while supporting natural bottle feeding movements. The embodiments also relate to a container for a baby bottle having a rigid cylinder and an elastomer fixed to the rigid cylinder. The rigid cylinder has a structure in which the elastomer formed on the rigid cylinder is fixed by an injection molding process.

[0049] Figure 1 This is an exploded view of a baby bottle 100 according to one embodiment. The baby bottle 100 may include components such as a container 110, a nipple 120, a collar 130, and a cap 140. These components can be easily disassembled for cleaning and / or replacement. Figure 1 In this embodiment, the baby bottle 100 is cylindrical, but it can also be various other shapes. The baby bottle 100 may also include... Figure 1 Components not shown in the diagram.

[0050] Container 110 is a component for containing fluids such as liquid formula or expressed breast milk. Container 110 has an open top and a closed bottom. Container 110 may include a rigid cylinder 1010 and an elastomer 1040 attached to the rigid cylinder 1010. The rigid cylinder 1010 has screws 114 formed on its outer surface to engage with corresponding screws 134 formed on the inner surface of a collar 130. The rigid cylinder 1010 may also be configured to secure the elastomer 1040 during and after the manufacturing process. The elastomer 1040 has a soft, resilient feel that allows an infant or caregiver to comfortably grasp it. Container 110 may have various shapes and sizes to suit different needs and requirements. In one or more embodiments, the elastomer 1040 may be formed on the rigid cylinder 1010 by an injection molding process, as referenced below. Figures 14A to 14F A detailed description.

[0051] The nipple 120 is placed on the container 110 and is capable of supplying liquid into the container 110 through one or more holes 214 formed on the top of the elongated tip 218. The nipple 120 can be bent axially and / or radially during bottle feeding and has multiple sets of ribs 320A, 320B, 320C formed on its inner surface 330, as shown below. Figures 3 to 8 Detailed description. Nipple 120 is made of elastic materials such as silicone.

[0052] The collar 130 is threadedly engaged with the container 110 with the nipple 120 present between the collar 130 and the container 110. The collar 130 may be made of a rigid material and has a screw 134 formed on its inner surface to engage with the screw 114. A caregiver can simply place the nipple 120 under the collar 130 and thread the collar 130 onto the screw 114 in the direction in which the baby bottle 100 is assembled. To disassemble the baby bottle 100, a caregiver can rotate the collar 130 in the opposite direction to remove the collar 130 from the container 110. In one embodiment, the collar 130 can sealably compress the flange 230 of the nipple 120 to the top of the container 110 to prevent fluid in the container 110 from leaking during bottle feeding.

[0053] The cap 140 is placed on top of the baby bottle 100 to prevent contamination of the nipple 120 when the baby bottle 100 is not in use. Specifically, the cap 140 can be fastened to the collar 130 when not in use, or can be removed from the collar 130 for use. The cap 140 may have a perforation 144 to serve as a vent, allowing the cap 140 to be easily placed on the collar 130 and easily detached from the collar 130.

[0054] Figure 1Each component of the baby bottle 100 is shown as a single unit. However, in other embodiments, the entirety of a partial component may consist of multiple discrete parts that can be assembled or disassembled. Furthermore, partial components may be combined into a single unit. For example, the nipple 120 may be combined with the collar 130 into a single unit.

[0055] Figure 2 This is a perspective view of a nipple 120 from a top position according to one embodiment. The nipple 120 is made of an elastic and flexible material and mimics the feel and flow of a mother's breast during breastfeeding. Among other components, the nipple 120 may include a base 222, an elongated tip 218 extending upward from the base 222, and a flange 230 extending radially from the bottom of the base 220. The nipple 120 may also include... Figure 2 Features not shown in the diagram.

[0056] The base 222 is wider than the elongated tip 218 and is dome-shaped. A vent 210 is formed on the radially opposite side of the nipple 120 in the base 222. Fewer or more vents may be provided. The base 222 has an inner surface 330 facing the container 110 and an outer surface 224 facing away from the container 110. The bottom of the base 222 may also have a flange 230.

[0057] An elongated tip 218 extends upward from the base 222 and comes into direct contact with the baby's mouth. One or more holes 214 are formed at the top of the elongated tip 218 to allow fluid to pass through. The elongated tip 218 has an inner surface 808 and an outer surface 802. The inner surface 808 and the outer surface 802 of the elongated tip 218 extend from the inner surface 330 and the outer surface 224 of the base 222, respectively.

[0058] The base 222 may also include a flow indicator 226 on its outer surface 224. The flow indicator 226 is a visual indication of a predetermined flow rate of fluid through one or more orifices 214 formed on the top of the elongated tip 218. Different nipples may have different flow rates suitable for different stages of infant development. The flow indicator 226, together with a marking, indicates the current flow rate of the nipple. The marking may be in the form of a notch 242 provided at the edge of the base 222. Markings other than notches may be used to indicate flow rate. For example, a sticker, pattern, or indentation may be provided at a location corresponding to the flow rate of the nipple.

[0059] Each nipple can have all the flow rates available in the baby bottle product line shown on base 222. In this way, caregivers can understand the range of available flow rates and identify which of these flow rates is being provided by the current nipple by recognizing the location of the markers.

[0060] In one or more embodiments, the nipple 120 is made of an elastic material that has undergone human safety testing. For example, the nipple 120 may be made of silicone, latex rubber, thermoplastic elastomer (TPE), or thermoplastic rubber (TPR). Furthermore, the nipple 120 may be a single, integral piece, and the entire nipple may be formed simultaneously, for example, using an injection molding process.

[0061] Figure 3 This is a perspective view of a nipple 120 viewed from a lower position according to one embodiment. The inner surface 330 has multiple sets of ribs 320A, 320B, 320C, which enhance the elastic recovery of the nipple 120 from bending actions. A flange 230 is provided at the bottom of the nipple 120 to engage the top opening of the container 110.

[0062] Ribs 320A, 320B, and 320C are located on the inner surface 330 of the nipple 120, in the region between the check valve 310 and one or more holes 214 of the elongated tip 218. Ribs 320A, 320B, and 320C have a cross-sectional shape that projects downward from the inner surface 330, and when viewed from the side of the nipple 120 (see...). Figure 6 ), along the axial direction D relative to nipple 120 A The ribs extend longitudinally in the inclined direction. Ribs in the same group are generally oriented longitudinally in the same direction along the inner surface 330. Some ribs begin and end at the base 222, but others extend to the elongated tip 218, as... Figure 4 and Figure 5 To show more clearly.

[0063] The base 222 also includes one or more check valves 310 with vents 210. The check valves 310 allow air to flow in through the vents 210 but prevent fluid leakage through the vents 210. In other embodiments, one or more check valves 310 may be located at other locations on the nipple 120 or may be included in other components of the baby bottle, such as a collar.

[0064] Figure 4 This is a bottom view of a nipple 120 according to one embodiment. When viewed from the bottom, portions of the ribs within the same set of ribs 320A, 320B, 320C are generally oriented in the same direction. Each set of ribs 320A, 320B, 320C includes a first subset of ribs 412, 418, 426 and a second subset of ribs 414, 422, 430. The first subset of ribs 412, 418, 426 begins and ends within the base 222, while the second subset of ribs 414, 422, 430 extends vertically to the inner surface of the elongated tip 218.

[0065] The first subset of ribs 412, 418, and 426 are used to reinforce the nipple 120 from an axially elongated or compressed state 910 (e.g., as...). Figure 9B(as shown) to its original shape 900 (e.g., Figure 9A (as shown) elastic recovery. The second subset of ribs 412, 418, 426 not only has portions on the base 222 that have the same function as the first subset of ribs 412, 418, 426, but also includes portions on the inner surface of the elongated tip 218 that enhance the elongated tip 218 from its radially deformed state 920 (e.g., as shown). Figure 9C (as shown) to its original shape 900 (e.g., Figure 9A (As shown) elastic recovery. The ribs advantageously enable the nipple 120 to maintain a relatively thin overall cross-sectional shape, providing a soft and flexible touch for the baby, while enhancing the elasticity and strength of the nipple 120.

[0066] The spacing, size, shape, and / or number of ribs may vary depending on the material and the required elasticity and strength of the nipple 120. The ratio and cross-sectional shape of the ribs extending to the elongated tip 218 relative to ribs extending only within the base 222 may also depend on similar factors and the overall dimensions of the nipple 120. Another factor to consider when determining the rib configuration is the phenomenon of fluid droplets being trapped by capillary action within the valleys between the ribs. If the spacing or gap between the ribs is too small, fluid droplets tend to get stuck between the valleys and not flow down, which may adversely affect the cleaning or sterilization of the nipple 120. Therefore, the spacing or gap between the ribs can be set above a predetermined distance to prevent this capillary trapping of fluid droplets. Taking these factors into account, when silicone is used as the material for the nipple 120, the rib height can be, for example, from 0.2 mm to 1 mm.

[0067] In one or more embodiments, when viewed from the bottom, a portion of at least one of the ribs in a set of ribs is radially D R Extension. For example, such as Figure 4 As shown, when viewed from the bottom, the portion of rib 452 in the base 222 is radially D R Extension. When viewed from the bottom, the portions of other ribs in the same group (e.g., 320A) located within the base 222 generally extend longitudinally in the same direction as rib 452. That is, projected downwards in a direction perpendicular to axis D. A The shape of the ribs on the plane is such that at least one extends radially, while the other ribs extend longitudinally in the same direction as the at least one rib.

[0068] In one or more embodiments, one set of ribs (e.g., set 320A) has a portion on the base 222 that generally extends along a first direction, while another set of ribs (e.g., set 320B) has a portion on the base 222 that generally extends along a second direction, and a final set of ribs (e.g., set 320C) generally extends along a third direction. When the first, second, and third directions are projected onto an axis D perpendicular to the nipple 120... AWhen projected onto a plane, the first, second, and third projected shapes can form an angle of 120 degrees relative to each other.

[0069] Figure 5 This is a transparent image of a nipple 120 according to one embodiment. Figure 5 In the embodiments, a portion of the rib in the elongated tip 218 is typically along the axial direction D. A extend.

[0070] Figure 6 This is a side view of a nipple 120 according to one embodiment. Figure 7 According to one embodiment, along Figure 6 A cross-sectional view of the nipple 120 cut by the A-A' line; Figure 8 According to one embodiment, along Figure 6 A cross-sectional view of the nipple 120 cut by B-B' wire cutting. Figure 7 The image shows the engaging portion 708 of the rib in the elongated tip 218, while a portion 704 of the rib is located in the base 222. In the base 222, when projected parallel to axis D... A When on the plane, the rib is usually along the axial direction D relative to the nipple 120. A The direction of the extension forms an angle α. Angle α can be selected to prevent the engagement area 708 of the elongated tip 218 from collapsing due to compression or vacuum pressure generated by the suction action, while also preventing the elongated tip 128 from extending along direction D. A The collapse extends to the base 222. In one or more embodiments, the angle α can range from 15 degrees to 80 degrees. Furthermore, to better reinforce the tip 128, additional axial ribs may be provided along at least a portion of the elongated tip.

[0071] When silicone is used as the material for the nipple 120, the thickness t1 of the wall at the valley between the ribs in the elongated tip 218 is between 1 mm and 2.5 mm. The wall thickness typically increases in the base 222. In one or more embodiments, the thickness t2 of the wall at the valley between the ribs in the base 222 is between 1 mm and 3 mm.

[0072] Figures 9A to 9C This is a diagram illustrating the bending of a nipple 120 according to one embodiment. The nipple 120, in its original shape 900, may undergo various types of deformation during bottle feeding. During a natural bottle feeding cycle, the nipple 120 may be bent along the axial direction D. A Compression (e.g.) Figure 9B (as shown in the deformed shape 910) or elongated in the same direction. Similarly, by the baby biting or gently biting the elongated tip 218, the elongated tip 218 of the nipple 120 can extend radially D RThe upper part is deformed into shape 920. Ribs provided on the inner surface of the nipple 120 enhance the elastic recovery in both deformations, thereby facilitating and supporting the baby's bottle-feeding activities.

[0073] Figure 10 This is a perspective view of a container 110 of a baby bottle 100 according to an embodiment. The container 110 includes a rigid cylinder 1010 for containing fluid and an elastic body 1040. The elastic body 1040 includes an upper portion 1020 attached to the rigid cylinder 1010 and a lower portion 1030 forming a large portion of the container 110. The bottom of the elastic body 1040 is closed. The container 110 may include... Figure 10 Other components not shown.

[0074] In one or more embodiments, the lower portion 1030 is integrally made of an elastic material such as silicone, while the upper portion 1020 is made of a rigid material such as plastic. During and after the manufacturing process, the difference in materials may hinder proper bonding between the upper portion 1020 and the lower portion 1030. Therefore, the rigid cylinder 1010 may include a structure that facilitates bonding of the upper portion 1020 to the elastomer 1040.

[0075] Figure 11A This is a perspective view of a rigid cylinder 1010 according to one embodiment. The rigid cylinder 1010 is cylindrical and includes an inner surface 1114, an outer surface 1118, a top surface 1116, and a bottom surface 1128. The top surface 1116 and the bottom surface 1128 connect the inner surface 1114 and the outer surface 1118 at the top and bottom, respectively. A screw 114 is formed on the outer surface 1118, which engages with a screw 134 of a collar 130. In one or more embodiments, an adhesive layer of silicon compound is deposited on the inner surface 1114 to enhance the bonding between the elastomer 1040 and the rigid cylinder 1010.

[0076] The rigid cylinder 1010 also includes an inner ring 1120 extending along the inner circumference of the rigid cylinder 1010 and connected to the inner surface 1114 via a leg 1122. Furthermore, the bottom of the rigid cylinder 1010 includes a bridge 1150 and forms a slot 1140 extending between the inner surface 1114 and the outer surface 1118. A groove 1144 is also formed in the inner surface 1114, located below the position where the leg 1122 is attached to the inner surface 1114. A slot 1140 is formed at the lower portion of the rigid cylinder 1010, penetrating between the inner surface 1114 and the outer surface 1118. The bridge 1150 defines the lower edge of the slot 1140. These additional structures of the rigid cylinder 1010 further prevent the elastomer 1040 from separating from the rigid cylinder 1010 during and after manufacturing.

[0077] Figure 11BThis is a perspective view of a rigid cylinder 1170 according to another embodiment. Figure 11B The rigid cylinder 1170 is substantially the same as the embodiment of the rigid cylinder 1010, except that a protrusion 1182 is formed at or near the top surface 1116 on its outer surface 1118. The screw 114 of the container 110 may include multiple threads. In the rigid cylinder 1170, the screw 114 includes four threads. To ensure proper engagement of the screw 114 of the container 110 with its corresponding screw 134 on the collar 130, the protrusion 1182 guides different segments of the screw 134 to simultaneously engage the respective starting points 1184 of the screw 114 when the collar 130 is assembled onto the container 110 by rotating the container 110 and / or the collar 130. If different segments of the screw 114 engage with the respective starting points 1184 of the screw 114 at different times, the container 110 and the collar 130 may not be properly assembled, and the collar 130 may tilt relative to the container 110. This tilt may cause leakage of fluid within the container 110. A circumferential gap Ta can be provided between the end point of the protrusion 1182 and the starting point 1184 of the screw 114.

[0078] In rigid cylinders 1170 and 1184, screw 114 comprises four screw portions starting from different points. In different embodiments, the number of threads on the rigid cylinder may include more or fewer screw portions and a corresponding number of starting points. In this case, the number of bumps may also match the number of screw portions.

[0079] Figure 12 According to one embodiment, along Figure 11A A cross-sectional view of a rigid cylinder 1010 cut by C-C' wire cutting. The rigid cylinder 1010 also has an edge 1134 extending radially from the outer surface 1118 of the rigid cylinder 1010. In the injection molding process, the edge 1134 is engaged by a clamp 1220 to secure the rigid cylinder 1010 and prevent leakage of heated or molten material (e.g., silicone) used to form the elastomer 1040, as shown below. Figure 13 Detailed description. A portion of screw 114 can also engage with clamp 1220. The top surface 1116 of rigid cylinder 1010 also prevents molten material from leaking during the injection molding process by abutting against upper core 1210.

[0080] Figure 13This is a cross-sectional view of a rigid cylinder 1010 and a mold structure for injection molding an elastomer 1040 onto the rigid cylinder 1010, according to one embodiment. In the injection molding process, the rigid cylinder 1010 is clamped by a jig 1220, and heated or molten material is injected into the cavity formed between the lower core 1230 and the upper core 1210. To prevent leakage of the heated or molten material through the top surface 1126 of the rigid cylinder 1010, through the interface between the upper core 1210 and the rigid cylinder 1010, the thickness of the top surface 1126 is t3. By increasing the thickness t3, the interface length between the upper core 1210 and the rigid cylinder 1010 increases, which reduces the possibility of leakage of heated or molten material through the interface. However, due to the increased volume of the rigid cylinder 1010, excessive thickening of t3 will increase the amount of material used in manufacturing the rigid cylinder 1010. In one embodiment, the thickness t3 is in the range of 0.5 mm to 1 mm.

[0081] The function of the inner ring 1120 is to prevent the upper portion of the elastomer 1040 from detaching from the rigid cylinder 1010 when the container 110 is removed from the upper core 1210 after the injection molding process. If the thickness t4 of the inner ring 1120 is too thin, the inner ring 1120 may break during the removal of the container 110 from the upper core 1210. However, if the thickness t4 is too thick, the amount of elastic material between 1120 and the inner upper wall 1326 of the rigid cylinder 1010 and / or the amount of elastic material between the upper core 1210 and the inner ring 1120 will be reduced, which may cause the upper portion 1020 of the elastomer 1040 to tear during the removal of the container 110 from the upper core 1210 after the injection molding process. In one embodiment, the thickness t4 is between 0.3 mm and 0.8 mm. In one embodiment, the distance t5 between the inner ring 1120 and the inner upper wall 1326 of the rigid cylinder 1010 is in the range of 0.5 mm to 0.9 mm. Furthermore, the distance t6 between the inner ring 1120 and the upper core 1210 is in the range of 0.3 mm to 0.8 mm.

[0082] The slit 1140 accommodates heated or molten material during the injection molding process. Together with the bridge 1150, the slit 1140 provides additional structure for attaching the elastomer 1040 to the rigid cylinder 1010 during and after the injection molding process.

[0083] Figures 11A to 13The structures of the rigid cylinders 1010 and 1170 are illustrative only. Some structural elements of the rigid cylinders 1010 and 1170 may be omitted, additional elements may be added to ensure that the elastomer 1040 is attached to the rigid cylinders 1010 and 1170, or alternative structural elements may be used. For example, screws 1110 and 1170 may be provided on the inner surface 1114, and ring 1120 may be placed on the outer side of the outer surface 1118.

[0084] Figures 14A to 14F This is a diagram illustrating the process of performing an injection molding process to form a container 110 according to one embodiment. Figure 14A As shown, the rigid cylinder 1010 is locked onto the upper core 1210. Then, the upper core 1210 and the lower core 1230 move relative to each other so that the lower part of the upper core 1210 is inserted into the cavity of the lower core 1230, as shown. Figure 14B As shown. Thus, an injection cavity is defined between the upper core 1210 and the lower core 1230 to accommodate heated or molten material injected into the injection cavity at a predetermined pressure level.

[0085] Then, as Figure 14C As shown, the clamp 1220 moves laterally to clamp the rigid cylinder 1010. The clamp 1220 locks the rigid cylinder 1010 in place and prevents molten material from leaking from the cavity. The direction of movement of the clamp 1220 can be perpendicular to the direction of relative movement of the upper core 1210 and the lower core 1230.

[0086] Subsequently, as Figure 14D As shown, heated or molten material is injected into the injection cavity to form an elastomer 1040. After the heated or molten material cools into an elastic material, the clamp 1220 is released from its fixation by lateral movement, and the upper core 1210 separates from the lower core 1230, as shown. Figure 14E As shown. Then, container 110 separates from upper core 1210.

[0087] use Figures 14A to 14F One of the many advantages of the injection molding process is that there are no visible dividing lines on the surface of the elastomer 1040. Therefore, removing the dividing lines from the container surface does not involve separate post-processing and provides a more aesthetically pleasing and superior shape. In addition, the injection molding process advantageously prevents heated or molten material from overflowing onto the rigid cylinder 1010 by limiting the clamp 1220.

[0088] Can be Figures 14A to 14F Various modifications can be made to the process shown. For example, the movement of the upper core 1210 and the clamp 1220 can be performed simultaneously, rather than sequentially. Furthermore, a mechanism can be provided to detach the container 110 from the upper core 1210 during its movement.

[0089] Although this disclosure has been described above with reference to several embodiments, various modifications can be made within the scope of this disclosure. Therefore, the above disclosure is intended to be illustrative and not limiting.

Claims

1. A nipple for use in a baby bottle, comprising: An elongated tip having one or more flow holes through which fluid flows, the elongated tip having an inner surface and an outer surface. A base, connected to the elongated tip and wider than the elongated tip, the base including an inner surface and an outer surface, the inner surface of the base facing the container of the baby bottle and connected to the inner surface of the elongated tip, and the outer surface of the base facing away from the container and connected to the outer surface of the elongated tip; as well as One or more ribs are located on at least a portion of the inner surface of the base and are configured to enhance the elastic recovery of the nipple from elongation or contraction of the base in the axial direction of the nipple, wherein a portion of the one or more ribs in the inner surface of the base is inclined relative to the axial direction of the nipple.

2. The nipple according to claim 1, wherein, A portion of one or more ribs extends into the inner surface of the elongated tip to enhance the elastic recovery of the elongated tip from collapse or compression in the radial direction of the nipple.

3. The nipple according to claim 2, wherein, The one or more ribs, except for a portion thereof, begin and terminate within the inner surface of the base.

4. The nipple according to claim 1, wherein, The one or more ribs include three groups of ribs, with a portion of the ribs in each group oriented in a different direction.

5. The nipple according to claim 4, wherein, The three sets of ribs include a first set of ribs oriented along a first direction and a second set of ribs oriented along a second direction, wherein the projection of the first direction onto a plane perpendicular to the axial direction forms an angle of 120 degrees with respect to the projection of the second direction onto the plane.

6. The nipple according to claim 5, wherein, The first set of ribs includes a series of adjacent ribs and another series of adjacent ribs, a portion of the series of adjacent ribs extending into the elongated tip, and the other series of adjacent ribs not extending into the elongated tip.

7. The nipple according to claim 1, wherein, The nipple also includes at least one check valve in the base.

8. The nipple according to claim 7, wherein, The one or more ribs are located between the at least one check valve and the one or more flow orifices.

9. The nipple according to claim 1, wherein, In the absence of the one or more ribs, the thickness of the base is between 1.5 mm and 6 mm, and in the absence of the one or more ribs, the thickness of the elongated tip is between 0.5 mm and 1.5 mm.

10. The nipple according to claim 1, wherein, The elongated tip, the base, and the one or more ribs form a single unit.

11. The nipple according to claim 10, wherein, The elongated tip, the base, and the one or more ribs are made of silicone resin.

12. The nipple according to claim 10, wherein, The elongated tip, the base, and the one or more ribs are a single, injection-molded structure.

13. The nipple according to claim 1, wherein, The outer surface of the base is formed with a plurality of flow indicators and a mark associated with one of the flow indicators.

14. The nipple according to claim 1, wherein, The base also includes a flange, which is captured by a collar to secure the nipple to the container.

15. A container for a baby bottle, comprising: A rigid cylinder and an elastic body, wherein the rigid cylinder comprises: The first side surface has a screw formed therein for securing a collar to the baby bottle; The second side surface is located on the opposite side of the first side surface; Top surface, connecting the first side surface and the second side surface; and A ring, extending along the circumference of the second side surface and connected to the second side surface. The elastomer includes: The upper part has an open end and is fixed to the rigid ring by means of a ring that accommodates the rigid cylinder within a cavity formed along the upper circumference of the upper part; and The lower part has a closed end and extends from the upper part.

16. The container according to claim 15, wherein, The elastomer is made of silicone resin.

17. The container according to claim 16, wherein, The thickness of the ring is between 0.3 mm and 0.8 mm.

18. The container according to claim 16, wherein, The thickness of the top surface is between 0.5 mm and 1.5 mm.

19. The container according to claim 15, wherein, The first side surface is the outer surface of the container, and the second side surface is the inner surface of the container.

20. The container according to claim 15, wherein, The ring is connected to the second side surface by a plurality of bridges, each of which is spaced apart by a predetermined distance.

21. The container according to claim 15, wherein, A silicon compound layer is deposited on the second side of the ring to enhance the adhesion between the rigid cylinder and the elastomer.

22. The container according to claim 15, wherein, The first side surface of the rigid cylinder includes one or more protrusions configured to guide the screw segment of the collar to engage with the starting point of the screw on the rigid cylinder.

23. A method for manufacturing a container for a baby bottle, comprising: A rigid cylinder is mounted onto a first core, the rigid cylinder having an outer surface, an inner surface located on the opposite side of the outer surface, and a top surface connecting the inner surface and the outer surface, the top surface contacting the first core; In response to mounting the rigid cylinder, relative movement is made between the first core and the second core to place the rigid cylinder within the cavity of the second core; The rigid cylinder is fixed in the cavity of the second core by clamping its outer surface onto a fixture; A fluid of elastic material is injected between the first core and the second core. The injected fluid contacts the inner surface of the rigid cylinder, and leakage of the fluid is prevented by the contact between the top surface and the first core and the contact between the outer surface and the clamp. as well as The injected fluid is solidified.

24. The method according to claim 23, wherein, Screws are formed on the outer surface of the rigid cylinder.

25. The method according to claim 23, wherein, Fixing the rigid cylinder includes moving the clamp in a direction perpendicular to the relative movement direction between the first core and the second core.

26. A baby bottle, comprising: A nipple and container for a baby bottle, the nipple comprising: An elongated tip having one or more flow holes through which fluid flows, the elongated tip having an inner surface and an outer surface; A base, connected to and wider than the elongated tip, the base including an inner surface and an outer surface, the inner surface of the base facing the container of the baby bottle and connected to the inner surface of the elongated tip, the outer surface of the base facing away from the container and connected to the outer surface of the elongated tip; and One or more ribs are located on at least a portion of the inner surface of the base and are configured to enhance the elastic recovery of the nipple from elongation or contraction of the base in the axial direction of the nipple, wherein a portion of the one or more ribs in the inner surface of the base is inclined relative to the axial direction of the nipple. The container is configured to contain the fluid and is fixed to the nipple.

27. The baby bottle according to claim 26, wherein, It also includes a collar for sealing and securing the nipple to the container.

28. The baby bottle of claim 26, wherein, The container includes: A rigid cylinder and an elastic body, wherein the rigid cylinder comprises: The first side surface has a screw formed therein for securing a collar to the baby bottle; The second side surface is located on the opposite side of the first side surface; Top surface, connecting the first side surface and the second side surface; and A ring extends along the circumference of the second side surface and connects to the second side surface; The elastomer includes: The upper part has an open end and is fixed to the rigid ring by means of a ring that accommodates the rigid cylinder within a cavity formed along the upper circumference of the upper part; and The lower part has a closed end and extends from the upper part.

29. The baby bottle according to claim 28, wherein, The first side surface of the rigid cylinder includes one or more protrusions configured to guide the screw segment of the collar to engage with the starting point of the screw on the rigid cylinder.

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