Artificial nipple attachment

Abstract

To provide an artificial nipple fixture which makes it easy to attach a plurality of types of artificial nipples to a container body.SOLUTION: An artificial nipple fixture 10 comprises: blades 22, 24, 26, 28 in which holes 22c, 24c, 26b, 28b and levers 22a, 24a, 26a, 28a are formed; a cover 14 on which an axis 14a and a notch 14b are provided; and a base 12 on which a female screw 13 and a hole 12a are provided. When the levers 22a, 24a, 26a, 28a of the blades 22, 24, 26, 28 are moved in a circumferential direction, the diameter formed on an inner peripheral surface of the pair of blades 22, 24, 26, 28 can be made changeable in size, and a plurality of types of artificial nipples can be easily attached to a container body.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an artificial nipple attachment tool (hereinafter sometimes simply referred to as "attachment tool") used when attaching an artificial nipple to a container body such as a baby bottle, paper carton, or PET bottle. [Background technology]

[0002] Many feeding devices have been developed that have an artificial nipple attached to a container body that contains milk or other beverages for infants. The artificial nipple is generally attached to the container body by an attachment. Examples of such feeding devices are listed below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-166267 A [Patent Document 2] Patent Publication No. 2021-036960

[0004] In general, the structure of the attachment for feeding equipment is determined according to the shape of the artificial nipple and the container body. However, since the shapes of the artificial nipple, container body, and attachment vary depending on the manufacturer, it is necessary to use a single combination of artificial nipple, container body, and attachment, which creates a problem in that, for example, it is difficult to attach one artificial nipple to another attachment or container body. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide an artificial nipple attachment tool that allows multiple types of artificial nipples to be easily attached to a container body. [Means for solving the problem]

[0006] The present invention includes an annular base andAn annular cover; The inner diameter variable mechanism is adapted to vary the size of the inner diameter. A female screw is formed on the inner periphery of the base. R, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The cover is provided with at least a pair of shafts that are provided at point-symmetrical positions and that pass through the holes, respectively, and a notch that is cut downward within a range in which the lever protrudes in an outer circumferential direction and is movable in the circumferential direction, an artificial nipple attachment device, the base being provided with holes into which the shafts are respectively inserted; Or, An annular base; An annular cover; The inner diameter variable mechanism is adapted to vary the size of the inner diameter. A female screw is formed on the inner periphery of the base. R, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The cover is provided with at least a pair of shafts that are provided at point-symmetric positions and that pass through the holes, respectively; The base is provided with a cutout portion cut out toward the upper side within a range in which the lever protrudes toward the outer periphery and is movable in the circumferential direction, and a hole into which the shaft is inserted. people Artificial nipple fittings, Or, An annular base; An annular cover; The inner diameter variable mechanism is adapted to vary the size of the inner diameter. A female screw is formed on the inner periphery of the base. R, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The base is provided with at least a pair of shafts that are provided at point-symmetric positions and that pass through the holes, respectively, and a notch that is cut out toward the upper side within a range in which the lever protrudes toward the outer periphery and is movable in the circumferential direction, The cover is provided with holes into which the shafts are respectively inserted. people Artificial nipple fittings, Or, An annular base; An annular cover; The inner diameter variable mechanism is adapted to vary the size of the inner diameter. A female screw is formed on the inner periphery of the base. R, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The base is provided with at least a pair of shafts that are provided at point-symmetric positions and that pass through the holes, respectively; The cover is provided with a cutout portion cut downward within a range in which the lever protrudes in the outer circumferential direction and is movable in the circumferential direction, and a hole into which the shaft is inserted. people Artificial nipple fittings, Or, The device has an annular base and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is a pair of arc-shaped blades, The base is provided with a pair of rail walls protruding upward at opposing positions, The blade is configured to be hooked at any position on the rail wall. people Artificial nipple fittings, Or, The device has an annular base and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is an arc-shaped blade, The base is formed with a pair of rail walls protruding upward at opposing positions, and an arc-shaped side wall continuous with the rail walls, The blade is configured to be hooked at any position on the rail wall. peopleThe above problem was solved by the artificial nipple attachment. Effect of the Invention

[0007] According to the present invention, the annular base is equipped with an inner diameter variable mechanism which varies the size of the inner diameter, and the diameter formed by the inner surface of the inner diameter variable mechanism can be varied from large to small by the inner diameter variable mechanism. Therefore, even artificial nipples of different diameters can be attached to the container body by clamping or preventing them from falling out with the blades, making it possible to create an artificial nipple attachment device which makes it easy to attach multiple types of artificial nipples to the container body.

[0008] The artificial nipple attachment further comprises an annular cover, the inner diameter variable mechanism being at least a pair of arc-shaped vanes, each of which has a hole at one end and a lever extending in the outer circumferential direction at the other end, the cover is provided with at least a pair of shafts provided at point-symmetrical positions that pass through the holes, and notches cut out downward within a range in which the levers protrude in the outer circumferential direction and are movable in the circumferential direction, and the base is provided with holes into which the shafts are inserted. According to this configuration, the diameter formed by the inner circumferential surface of the pair of vanes can be varied between large and small by moving the levers of the vanes in the circumferential direction.

[0009] Alternatively, the rotor may further include an annular cover, the inner diameter variable mechanism being at least a pair of arc-shaped blades, each of which has a hole at one end and a lever extending in the outer circumferential direction at the other end, the cover is provided with at least a pair of shafts provided at point-symmetric positions that pass through the holes, and the base is provided with notches cut out toward the upper side within a range in which the levers protrude in the outer circumferential direction and are movable in the circumferential direction, and holes into which the shafts are inserted. With this configuration as well, the diameter formed by the inner circumferential surfaces of the pair of blades can be varied between large and small by moving the levers of the blades in the circumferential direction.

[0010] Alternatively, the rotor may further include an annular cover, the inner diameter variable mechanism being at least a pair of arc-shaped blades, each of which has a hole at one end and a lever extending in the outer circumferential direction at the other end, the base having at least a pair of shafts provided at point-symmetric positions that pass through the holes, and a cutout portion cut out toward the upper side within a range in which the levers protrude in the outer circumferential direction and are movable in the circumferential direction, and the cover having holes into which the shafts are inserted. With this configuration as well, the diameter formed by the inner circumferential surfaces of the pair of blades can be varied between large and small by moving the levers of the blades in the circumferential direction.

[0011] Alternatively, the rotor may further include an annular cover, the inner diameter variable mechanism being at least a pair of arc-shaped blades, each of which has a hole at one end and a lever extending in the outer circumferential direction at the other end, the base is provided with at least a pair of shafts provided at point-symmetric positions that pass through the holes, and the cover is provided with notches cut out toward the lower side within a range in which the levers protrude in the outer circumferential direction and are movable in the circumferential direction, and holes into which the shafts are inserted. With this configuration as well, the diameter formed by the inner circumferential surfaces of the pair of blades can be varied between large and small by moving the levers of the blades in the circumferential direction.

[0012] Furthermore, if the configuration further includes an annular blade fixing ring that is disposed between the blade and the base or cover and has a shaft through hole at a position corresponding to the blade hole, it becomes easier to prevent the blade from coming off the shaft when assembling the artificial nipple attachment device, making assembly easier.

[0013] The inner diameter varying mechanism may be a pair of arc-shaped blades, and a pair of rail walls protruding upward may be formed at opposing positions on the base, so that the blades are hooked at any position on the rail walls. With this configuration, the diameter formed by the inner peripheral surfaces of the pair of blades can be varied between large and small by moving the pair of blades along the rail walls.

[0014] The inner diameter variable mechanism may be an arc-shaped blade, and the base may be formed with a pair of rail walls protruding upward and arc-shaped side walls continuous with the rail walls at opposing positions, so that the blade is hooked at any position on the rail walls. With this configuration, the diameter formed by the inner peripheral surfaces of the blade and the side walls can be varied between large and small by moving the blade along the rail walls.

[0015] The inner diameter varying mechanism may be an annular elastic member. According to this configuration, the diameter formed by the inner peripheral surface of the elastic member can be varied between large and small by deforming the annular elastic member.

[0016] Furthermore, if the configuration further comprises a connecting attachment that can be screwed into the female thread and that is connected to the container body, it can become an artificial nipple attachment device that can be connected to container bodies of various shapes. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a longitudinal sectional view of the artificial nipple attachment device according to the first embodiment of the present invention with a first artificial nipple attached thereto. [Diagram 2] FIG. 2 is a perspective view of the artificial nipple attachment device of FIG. 1 before assembly. [Diagram 3] FIG. 2 is a perspective view of the artificial nipple attachment device of FIG. 1 in an open state during assembly. [Figure 4] FIG. 2 is a perspective view of the artificial nipple attachment device of FIG. 1 in a closed assembled state. [Diagram 5] FIG. 2 is a longitudinal sectional view of the artificial nipple attachment device of FIG. 1 with a second artificial nipple attached thereto. [Figure 6] 2 is a perspective view illustrating the assembly of the cover, wings, and fixing ring of the artificial nipple attachment device of FIG. 1. [Figure 7] FIG. 2 is a bottom view illustrating the artificial nipple attachment device of FIG. 1 in an open state, with the base omitted. [Figure 8] FIG. 2 is a bottom view illustrating the closed state of the artificial nipple attachment device of FIG. 1 with the base omitted. [Figure 9] FIG. 11 is a plan view of the artificial nipple attachment device of the second embodiment of the present invention in an open state. [Figure 10] FIG. 11 is a plan view of the artificial nipple attachment device of the second embodiment of the present invention in a closed state. [Figure 11] FIG. 13 is a plan view of an artificial nipple attachment device according to a third embodiment of the present invention in an open state. [Figure 12] FIG. 11 is a plan view of the artificial nipple attachment device of the third embodiment of the present invention in a closed state. [Figure 13] FIG. 13 is a longitudinal sectional view of an artificial nipple attachment device according to a fourth embodiment of the present invention in an open state. [Figure 14] FIG. 13 is a longitudinal sectional view of the artificial nipple attachment device of the fourth embodiment of the present invention in a closed state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] An embodiment of the present invention will be described with reference to Figures 1 to 14. However, the present invention is not limited to this embodiment.

[0019] 1 is a vertical cross-sectional view of an artificial nipple attachment device 10 according to one embodiment of the present invention, with a first artificial nipple 30 attached to it. The artificial nipple attachment device 10 is attached to a container body (not shown), as will be described in detail later.

[0020] The artificial nipple attachment device 10 comprises an annular base 12, an annular cover 14, arc-shaped first to fourth wings 22, 24, 26, 28 which are an inner diameter variable mechanism for varying the size of the inner diameter, and an annular wing fixing ring 16. The first wing 22 and the second wing 24, and the third wing 26 and the fourth wing 28 form pairs, respectively. The base 12, the cover 14, the first to fourth wings 22, 24, 26, 28, and the wing fixing ring 16 can be formed from known resin materials or metal materials.

[0021] 2 is a perspective view of the artificial nipple attachment device 10 before assembly. A female thread 13 is formed on the inner periphery of the base 12. The artificial nipple attachment device 10 is attached to a container body such as a baby bottle or a plastic bottle by screwing the female thread 13 into a male thread provided at the opening of the container body. By configuring the device to include a connecting attachment (not shown) with a hole with a diameter of about the same as a straw that is screwed into the female thread 13, the artificial nipple attachment device 10 can also be used by inserting it into a straw insertion port of a paper carton or the like. In this way, by configuring the device to further include a connecting attachment, the artificial nipple attachment device 10 can be made to be connectable to container bodies of various shapes.

[0022] A plurality of holes 12a are provided on the upper surface of the base 12 at positions symmetrical with respect to a point. The holes 12a may be bottomed or bottomless. As described later, shafts 14a, the same number as the holes 12a, provided in the cover 14, are inserted into the holes 12a. In addition, a base cutout portion 12b is provided on the side surface of the base 12, which is cut out toward the upper side. A protrusion portion 14c extending downward of the cover 14 fits into the base cutout portion 12b without any gap (see also FIG. 3). This configuration makes it easier to align the shafts 14a of the cover 14 and the holes 12a of the base 12. It is sufficient to provide at least one base cutout portion 12b and one protrusion portion 14c.

[0023] The shafts 14a of the cover 14 are provided in pairs at point-symmetric positions so as to correspond to the positions of the holes 12a of the base 12. A plurality of cutouts 14b that are cut out toward the lower side are formed in the cover 14. The cutouts 14b are provided in a range in which first to fourth levers 22a, 24a, 26a, 28a of the first to fourth blades 22, 24, 26, 28 described below protrude in the outer circumferential direction and are movable in the circumferential direction (see also FIG. 3).

[0024] The first to fourth blades 22, 24, 26, 28 basically have the same configuration. The first blade 22 and the second blade 24, and the third blade 26 and the fourth blade 28 each form a pair, and any pair may be omitted. In the artificial nipple attachment device 10, the first to fourth blades 22, 24, 26, 28 are formed in a semi-arc shape in the range of about 180°, but the angle may be set arbitrarily as long as the function described below can be achieved.

[0025] The first to fourth blades 22, 24, 26, 28 are formed at one end with first to fourth holes 22c, 24c, 26b, 28b, each large enough to receive the shaft 14a of the cover 14. Meanwhile, the other end is formed with first to fourth levers 22a, 24a, 26a, 28a, each extending in the outer circumferential direction. The first to fourth levers 22a, 24a, 26a, 28a are each large enough to protrude in the outer circumferential direction from the notch 14b of the cover 14 (see also FIG. 3).

[0026] The blade may have a configuration in which thickened portions 22b, 24b are formed on the inner periphery, like the first and second blades 22, 24. By changing the presence or absence of thickened portions 22b, 24b and their thickness, the variation in thickness on the inner periphery of the blade can be increased, and the blade can be made to fit various artificial nipples.

[0027] The artificial nipple fitting device 10 may be configured to include an annular blade fixing ring 16 disposed between the third and fourth blades 26, 28 and the base 12. The blade fixing ring 16 is provided with shaft through holes 16a through which the shafts 14a of the cover 14 pass at positions corresponding to the first to fourth holes 22c, 24c, 26b, 28b of the first to fourth blades 22, 24, 26, 28. The blade fixing ring 16 may also be provided on its side with recesses 16b into which the protrusions 14c of the cover 14 fit.

[0028] By providing the blade fixing ring 16, the first to fourth blades 22, 24, 26, 28 can be easily prevented from coming off the shaft 14a when assembling the artificial nipple attachment device 10, making the assembly easier. Specifically, as shown in Fig. 6, the first and second holes 22c, 24c of the first and second blades 22, 24 are fitted onto the shaft 14a of the cover 14, and then the third and fourth holes 26b, 28b of the third and fourth blades 26, 28 are fitted onto the shaft 14a of the cover 14. At this time, the first to fourth levers 22a, 24a, 26a, 28a of the first to fourth blades 22, 24, 26, 28 are arranged so that they protrude from the cutouts 14b of the cover 14 in the outer circumferential direction, respectively. Next, the shaft 14a is inserted into the shaft through hole 16a of the blade fixing ring 16. At this time, if the blade fixing ring 16 is provided with a recess 16b, it is possible to easily determine the position of the shaft through hole 16a relative to the shaft 14a. At this time, if the blade fixing ring 16 is held, it is possible to prevent the first to fourth blades 22, 24, 26, 28 from coming off the shaft 14a, making it easier to assemble the artificial nipple attachment device 10.

[0029] Figure 3 is a perspective view of the artificial nipple attachment device 10 in an open state when assembled. The open state refers to a state in which the diameter formed by the inner circumferential surfaces of each pair of the first and second blades 22, 24 and the third and fourth blades 26, 28 is large. As shown in Figure 3, when the artificial nipple attachment device 10 is in an open state when assembled, the first and second blades 22, 24 are arranged so that there is a gap between them, i.e., the first blade 22 and the second blade 24 are not in contact with each other. The same is true for the third and fourth blades 26, 28.

[0030] FIG. 4 is a perspective view of the artificial nipple attachment device 10 in a closed state when assembled. The closed state is a state in which the diameter formed by the inner peripheral surfaces of each pair of the first and second blades 22, 24 and the third and fourth blades 26, 28 is small. The open and closed states are switched by moving the first to fourth levers 22a, 24a, 26a, 28a of the first to fourth blades 22, 24, 26, 28 in the circumferential direction, respectively, as shown in FIG. 7 and FIG. 8, so that the first to fourth blades 22, 24, 26, 28 rotate around the respective shafts 14a passing through the first to fourth holes 22c, 24c, 26b, 28b. At this time, the diameter formed by the inner peripheral surfaces of each pair of the first and second blades 22, 24 and the third and fourth blades 26, 28, i.e., the size of the space 11, is switched between large and small. In addition, a locking mechanism may be provided to fix the circumferential movement of the first to fourth levers 22a, 24a, 26a, and 28a at any position between the open state and the closed state.

[0031] Fig. 1 is a vertical cross-sectional view of the artificial nipple attachment device 10 in an open state with a first artificial nipple 30 attached, and Fig. 5 is a vertical cross-sectional view of the artificial nipple attachment device 10 in a closed state with a second artificial nipple 30a attached. Thus, according to the artificial nipple attachment device 10, the diameters formed by the inner peripheral surfaces of the respective pairs of the first and second blades 22, 24 and the third and fourth blades 26, 28 can be varied between large and small by moving the first to fourth levers 22a, 24a, 26a, 28a of the first to fourth blades 22, 24, 26, 28 in the circumferential direction, so that even if the first and second artificial nipples 30, 30a have different diameters, the first or second artificial nipple 30, 30a can be clamped or prevented from falling off by the first to fourth blades 22, 24, 26, 28 and attached to the container body.

[0032] Although not illustrated, in another embodiment, instead of providing the notch 14b in the cover 14, a configuration in which a notch is provided in the base is also possible. Also, instead of the configuration in which the cover 14 has the shaft 14a, a configuration in which the base has a shaft, and instead of the hole 12a in the base 12, a configuration in which the cover has a hole, may be used. In this case, the blade fixing ring may be disposed between the blade and the cover.

[0033] 9 is a plan view of an artificial nipple attachment device 40 in an open state according to a second embodiment of the present invention. The artificial nipple attachment device 40 has an inner diameter variable mechanism made up of a base 42 and a pair of arc-shaped blades 52. The base 42 is formed with a pair of rail walls 43 that protrude upward at opposing positions.

[0034] The blade 52 is configured to be hooked at any position on the rail wall 43. Specifically, successive recesses 44 are formed on the opposing surface of the rail wall 43, and the blade 52 is formed with a protrusion 54 that fits into the recess 44. The protrusion 54 is formed to have elasticity so that it fits into the successive recesses 44 in order when the blade 52 is moved along the rail wall 43.

[0035] According to this configuration, the diameter formed by the inner peripheral surface of the pair of blades 52 can be varied between large and small by moving the pair of blades 52 along the rail wall 43 (see also FIG. 10). In order to facilitate the movement of the pair of blades 52 along the rail wall 43, it is preferable to provide the blades 52 with protrusions 56 (which may be recessed portions). Also, the recessed portion 44 and the corresponding protruding portion 54 may be provided on only one of the opposing surfaces of the rail wall 43, and the number of recessed portions 44 may be two or more.

[0036] 11 is a plan view of an artificial nipple attachment device 60 of a third embodiment of the present invention in an open state. The artificial nipple attachment device 60 has an inner diameter variable mechanism composed of a base 62 and an arc-shaped blade 72. The base 62 is formed with a pair of rail walls 63 protruding upward at opposing positions, and an arc-shaped side wall 65 continuous with the rail walls 63.

[0037] The blade 72 is configured to be hooked at any position on the rail wall 63. Specifically, a series of recesses 64 are formed on the opposing surface of the rail wall 63, and the blade 72 is formed with a protrusion 74 that fits into the recess 64. The protrusion 74 is formed to have elasticity so that it fits into the successive recesses 64 in order when the blade 72 is moved along the rail wall 63.

[0038] According to this configuration, the diameter formed by the inner peripheral surface of the blade 72 and the side wall 65 can be varied between large and small by moving the blade 72 along the rail wall 63 (see also FIG. 12). Note that, in order to facilitate the movement of the blade 72 along the rail wall 63, it is preferable to provide a protrusion 76 (which may be a recessed portion) on the blade 72. Also, the recess 64 and the corresponding protrusion 74 may be provided on only one of the opposing surfaces of the rail wall 63, and the number of recesses 44 may be two or more.

[0039] Figure 13 is a vertical cross-sectional view of an artificial nipple attachment device 80 in an open state according to a fourth embodiment of the present invention. The artificial nipple attachment device 80 has an inner diameter variable mechanism made up of a base 82 and an annular elastic member 84 attached to the base 82. The elastic member 84 can be made of rubber or silicone. With this configuration, the diameter formed by the inner peripheral surface of the elastic member 84 can be varied between large and small by deforming the annular elastic member 84 (see also Figure 14).

[0040] As described above, according to the present invention, it is possible to provide an artificial nipple attachment tool that allows multiple types of artificial nipples to be easily attached to a container body. [Explanation of symbols]

[0041] 10,40,60,80 Artificial nipple attachment 12,42,62,82 base 12a hole 13 Female thread 14 Cover 14a Axis 14b Notch 16 Blade fixing ring 16a Shaft through hole 22, 24, 26, 28, 52, 72 Blades (inner diameter variable mechanism) 84 Elastic member (inner diameter variable mechanism) 22a, 24a, 26a, 28a Lever 22c,24c,26b,28b hole 43,63 Rail wall

Claims

1. The device includes an annular base, an annular cover, and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The cover is provided with at least a pair of shafts that are provided at point-symmetrical positions and that pass through the holes, respectively, and a notch that is cut out downward within a range in which the lever protrudes in an outer circumferential direction and is movable in the circumferential direction, The base is provided with holes into which the shafts are respectively inserted. Artificial nipple fittings.

2. The device includes an annular base, an annular cover, and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The cover is provided with at least a pair of shafts that are provided at point-symmetric positions and that pass through the holes, respectively; The base is provided with a cutout portion cut out toward the upper side within a range in which the lever protrudes toward the outer periphery and is movable in the circumferential direction, and a hole into which the shaft is inserted. Artificial nipple fittings.

3. The device includes an annular base, an annular cover, and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The base is provided with at least a pair of shafts that are provided at point-symmetric positions and that pass through the holes, respectively, and a notch that is cut out toward the upper side within a range in which the lever protrudes toward the outer periphery and is movable in the circumferential direction, The cover is provided with holes into which the shafts are respectively inserted. Artificial nipple fittings.

4. The device includes an annular base, an annular cover, and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is at least a pair of arc-shaped blades, Each of the blades has a hole on one end and a lever on the other end that extends in the outer circumferential direction. The base is provided with at least a pair of shafts that are provided at point-symmetric positions and that pass through the holes, respectively; The cover is provided with a cutout portion cut downward within a range in which the lever protrudes in the outer circumferential direction and is movable in the circumferential direction, and a hole into which the shaft is inserted. Artificial nipple fittings.

5. A device comprising an annular base and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is a pair of arc-shaped blades, The base is provided with a pair of rail walls protruding upward at opposing positions, The blade is configured to be hooked at any position on the rail wall. Artificial nipple fittings.

6. A device comprising an annular base and an inner diameter variable mechanism for varying the size of the inner diameter, A female screw is formed on the inner periphery of the base, The inner diameter variable mechanism is an arc-shaped blade, The base is formed with a pair of rail walls protruding upward at opposing positions, and an arc-shaped side wall continuous with the rail walls, The blade is configured to be hooked at any position on the rail wall. Artificial nipple fittings.

7. 3. The artificial nipple attachment device according to claim 1 or 2, further comprising an annular wing fixing ring disposed between the wing and the base, the annular wing fixing ring having an axial through hole passing through the shaft at a position corresponding to the hole.

8. 5. The artificial nipple attachment device according to claim 3 or 4, further comprising an annular wing fixing ring disposed between the wing and the cover, the annular wing fixing ring having an axial through hole passing through the shaft at a position corresponding to the hole.

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