TOY WATER BALL

Abstract

A toy water ball is disclosed. The toy water ball comprises a plurality of petals and a connecting member for connecting the petals, wherein each petal comprises a body and a rim extending inwards from the circumferential edge of the body. Each rim comprises magnetic members. The toy water ball has an open state and a closed state. When the toy water ball is in its closed state, the petals together enclose a water carrying cavity. The corresponding magnetic members on the two petals attract each other so the rims tightly abut each other, creating a water-blocking seal, sealing the water carrying cavity. The rims extend into the water carrying cavity. The magnetic members enables repeated open and close of the toy water ball. The toy water ball does not need a pressurized water source to fill with water.

Description

TECHNICAL FIELD

The present disclosure relates to the field of entertainment toys, in particular to a toy water ball.

BACKGROUND

As the weather gets hotter, toys that use water as the medium are more popular and people can play with them, for example, water guns, and feel cooling. However, water guns have a high risk of hurting people, especially in the eyes, due to the high pressure of water jetted. At present, there is a game of throwing a water ball, in which a balloon filled with water is thrown at a player. The player who is hit will get wet by the water due to bursting of the balloon. The player will try to avoid the flying water ball as much as possible. This game is safe and can bring great fun and cooling for people, so it is really a good activity for people to play in summer.

However, the balloons used in the current water ball activities can only be used once and can't be reused after bursting. The large number of used balloons is likely to cause environmental pollution. In addition, to playing with this water ball, water needs to be injected into the balloons under pressure, so this game often requires an environment with a water tap. Many people like to play it in places with water such as grassland, seaside or riverside in the suburbs. However, under normal atmospheric pressure, it is difficult to directly inject water into balloons to expand them. Therefore, it is difficult to inject water to sufficiently expand the water ball on the spot due to the lack of water pressure in the natural environment. As a result, this game is limited by the environment in which the game is played.

SUMMARY

Based on this, it is desired to provide a toy water ball that can be reused and can be used on many occasions and in many environments.

A toy water ball, comprising a plurality of petals, wherein each petal comprises a first edge portion and a second edge portion, each first edge portion is provided with at least one first magnetic member, and each second edge portion is provided with at least one second magnetic member; when all the petals are closed to form a spherical shape, an attraction force is generated between the first magnetic members on the first edge portion of each petal and the second magnetic members on the second edge portion of an adjacent petal so that the first edge portion of the petal tightly fits and contacts the second edge portion of the adjacent petal and the petals cooperatively form a water-carrying cavity therebetween.

In an embodiment, the first edge portion of one of the petals is provided with a plurality of first magnetic members, the second edge portion of the petal adjacent to the first edge portion of said one of the petals is provided with a plurality of second magnetic members, and positions of the plurality of the first magnetic members are arranged in one-to-one correspondence with positions of the plurality of the second magnetic members.

In an embodiment, the first edge portion of each petal is provided with a plurality of first magnetic members, the first magnetic members of the same first edge portion are spaced apart from each other; the second edge portion of each petal is provided with a plurality of second magnetic members, and the second magnetic members of the same second edge portion are spaced apart from each other.

In an embodiment, the first edge portion of each petal has a first fitting surface, and the first magnetic members are mounted on an inner side, facing away from the first fitting surface, of the first edge portion; the second edge portion of each petal has a second fitting surface, and the second magnetic members are mounted on an inner side, facing away from the second fitting surface, of the second edge portion.

In an embodiment, the first magnetic members are arranged corresponding to a middle position of the first fitting surface; the second magnetic members are arranged corresponding to a middle position of the second fitting surface; the first fitting surface is concavely arranged in a natural state.

In an embodiment, the toy water ball further comprises a connecting member respectively connected to all the petals.

In an embodiment, the connecting member comprises an elastic connecting ring and connecting ends respectively connecting the connecting ring to the petals.

In an embodiment, an inner surface of the first edge portion of each petal is provided with grooves and the first magnetic members are fixed in the grooves.

In an embodiment, the first magnetic members are fixed at the first edge portion by binding, bonding, adhering or snap connection.

In an embodiment, the number of petals is two, three, four, or five.

In an embodiment, the first magnetic members are magnets and the second magnetic members are magnets, and the first magnetic members and the second magnetic members are opposite in polarity; or the first magnetic members are magnets and the second magnetic members are iron blocks.

In an embodiment, the first edge portion and the second edge portion of each of the petals are made of soft gel.

In an embodiment, the petals are made of silicone.

The toy water ball of the present disclosure is provided with the first magnetic members and the second magnetic members, so that the toy water ball can be closed or opened repeatedly and thus can be reused; therefore, the water ball is environmentally friendly and clean. In addition, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many occasions, and has strong applicability.

BRIEF DESCRIPTION OF DRAWINGS

In order to better describe and illustrate those embodiments and/or examples of the present disclosure, reference may be made to one or more of the drawings. The additional details or examples used to describe the drawings should not be considered a limitation on the scope of any of the disclosed embodiments and/or examples presently described, and/or the best mode as presently understood.

FIG. 1 is a perspective schematic view of a toy water ball consistent with a first embodiment of this disclosure;

FIG. 2 is a perspective schematic diagram of the toy water ball of FIG. 1 in an unfolded state;

FIG. 3 is a perspective schematic view of the toy water ball of FIG. 1, viewed from another aspect;

FIG. 4 is a perspective schematic view of the toy water ball of FIG. 3 in an unfolded state;

FIG. 5 is a perspective schematic view of one of petals of the toy water ball of FIG. 2 tilted;

FIG. 6 is a perspective schematic view of a petal of FIG. 5 cut along the midline, in which first magnetic members and the petal are in an exploded state;

FIG. 7 is a perspective schematic view of a connecting member of the toy water ball of FIG. 1;

FIG. 8 is a perspective schematic view of a toy water ball according to a second embodiment consistent with this disclosure;

FIG. 9 is a perspective schematic view of a toy water ball according to a third embodiment consistent with this disclosure;

FIG. 10 is a perspective schematic view of a toy water ball according to a fourth embodiment consistent with this disclosure;

FIG. 11 is a perspective schematic view of a toy water ball according to a fifth embodiment consistent with this disclosure;

FIG. 12 is a perspective schematic view of the toy water ball of FIG. 11 in an opened state;

FIG. 13 shows a connecting member of the toy water ball of FIG. 12 and a first edge portion and a second edge portion of each of the petals;

FIG. 14 is a perspective schematic view of a toy water ball according to a sixth embodiment consistent with this disclosure;

FIG. 15 is a perspective schematic view of the toy water ball of FIG. 14 in an opened state;

FIG. 16 is a schematic view of a toy water ball according to the fifth embodiment of this disclosure in a closed state;

FIG. 17 is a schematic view of the toy water ball of FIG. 16 in an open state;

FIG. 18 is a cross-sectional view of the toy water ball of FIG. 17 taken along the central axis R;

FIG. 19 is a cross-sectional view of the toy water ball shown in FIG. 16;

FIG. 20 is an enlarged partial schematic view of FIG. 19 at A;

FIG. 21 is a schematic view of the two petals shown in FIG. 20 in the closed state;

FIG. 22 is a partial cross-sectional view of two petals as they would be in the closed state, consistent with a seventh embodiment of this disclosure;

FIG. 23 is a schematic view of the two petals shown in FIG. 22 in closed state;

FIG. 24 is a schematic diagram of a toy water ball consistent with an eighth embodiment of this disclosure in an open state;

FIG. 25 is a cross-sectional view of the toy water ball shown in FIG. 24;

FIG. 26 is a cross-sectional view of the toy water ball of FIG. 24 in a closed state;

FIG. 27 is an enlarged partial schematic view at B in FIG. 26;

FIG. 28 is a schematic view of the two rims of FIG. 27 being fitted together;

FIG. 29 is a schematic view of a toy water ball according to a ninth embodiment consistent with this disclosure in an open position;

FIG. 30 is a cross-sectional view of the toy water ball shown in FIG. 29;

FIG. 31 is a cross-sectional view of the toy water ball of FIG. 29 immediately before closing;

FIG. 32 is a cross-sectional view of the toy water ball of FIG. 31 in a closed state;

FIG. 33 is an enlarged partial schematic view of FIG. 32 at C;

FIG. 34 is a schematic view of a toy water ball according to a tenth embodiment consistent with this disclosure in an open state;

FIG. 35 is a schematic view of the toy water ball of FIG. 34 in a closed state;

FIG. 36 is a schematic view of a toy water ball according to a eleventh embodiment consistent with this disclosure in an open state; and

FIG. 37 is a schematic view of the toy water ball of FIG. 36 in a closed state.

DETAILED DESCRIPTION

For easy understanding of the present disclosure, a more comprehensive description of the present disclosure will be given below. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the contents disclosed by the present disclosure understood more thoroughly and comprehensively.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are for the purpose of describing specific embodiments only but not intended to limit the present disclosure.

Referring to FIGS. 1 to 7, a toy water ball consistent with a first embodiment of this disclosure can be thrown as a prop in games and entertainment. The toy water ball has a folded state and an unfolded state. When the toy water ball is placed into water and filled with water, and after the water ball returns to the folded state, the toy water ball forms a closed water-carrying cavity. When the toy water ball hits a person or hits the ground or a hard object during the game, the toy water ball is squeezed or compressed to split and turns to the unfolded state, and the loaded or carried water splashes to achieve the purpose of the game and entertainment.

Specifically, as shown in FIGS. 1 to 4, the toy water ball 100 according to the first embodiment includes a plurality of petals 10, and each petal 10 has a first edge portion 11 and a second edge portion 12; each first edge portion 11 is provided with a first magnetic member 21, and each second edge portion 12 is provided with a second magnetic member 22. When all the petals 10 are folded to form a spherical shape, the first magnetic member 21 on the first edge portion 11 of each petal 10 and the second magnetic member 22 on the second edge portion 12 of the adjacent petal 10 attract each other so that the first edge portion 11 of the petal 10 tightly fit and contacts the second edge portion 12 of the adjacent petal 10, and in this way, every two adjacent petals 10 are connected in sequence, and all the petals 10 together form a water-carrying cavity.

In some embodiments, regardless of the number of petals 10 toy water ball 100 has, a user may open petals 10 and place toy water ball 100 in water; by closing petals 10 and putting toy water ball 100 in the closed state, toy water ball 100 is filled with water. The magnetic attraction force exerted by corresponding magnetic members 20 and 22 may create a water-tight cavity, preventing water inside cavity from escaping from toy water ball 100. When the user throws toy water ball 100 in its closed state on a target (e.g., a human body, ground, walls, or any structure with a certain rigidity,) toy water ball 100 deforms and creates a higher internal pressure within water ball 100 in its cavity. The higher internal pressure may overcome the magnetic attraction force of magnetic members 20 and 22 and thus separate petals 10, causing water trapped in the cavity to be splashed out, therefore achieving the entertainment effect.

In this embodiment, the toy water ball 100 has three petals, and each petal 10 is configured as a one-third-sphere shell. When in the combined state, the three petals 10 are close to each other in pairs to cooperatively form the water-carrying cavity enclosed by the three petals 10. In this embodiment, the toy water ball 100 is configured in a spherical shape. Understandably, in other embodiments, the toy water ball can also be shaped like an elliptical sphere or an irregular sphere, as long as it can carry water in the folded state. In this embodiment, the three petals 10 are of the same shape to facilitate mass production. In other embodiments, the three petals 10 can be different in size, as long as they can fold up to form a sphere.

In this embodiment, each petal 10 is configured as an arc-shaped fan-like shell. Each petal 10 is integrally made of a soft material. In this way, people feel less pain when hit by the toy water ball, thus increasing the fun of entertainment. Specifically, each petal 10 is made of a light, thin and soft sheet such as a silicone sheet, and has some flexibility. In other embodiments, the first edge portion 11 and the second edge portion 12 of each petal 10 can be made of different materials separately and then assembled to the body/middle of the petal 10. For example, the first edge portion 11 and the second edge portion 12 are made of silicone, the body/middle portion of the petal 10 is configured as a soft shell, and the three are connected to form an integral member by injection molding.

Referring to FIGS. 5 and 6, the first edge portion 11 and the second edge portion 12 of each petal 10 are located on opposite sides of the petal 10. In this embodiment, the first edge portion 10 of one of the petals 10 of the toy water ball 100 is provided with a plurality of first magnetic members 21, the second edge portion 12 of the petal 10 adjacent to the first edge portion 11 of this petal 10 is provided with a plurality of second magnetic members 22, and the positions of the first magnetic members 21 of the petal 10 are arranged in one-to-one correspondence with the positions of the second magnetic members 22 of the adjacent petal 10. Specifically, in this embodiment, the number of the first magnetic members 21 and the number of the second magnetic members 22 of each petal 10 are both five, and the positions of the first magnetic members 21 are arranged in one-to-one correspondence with the positions of the second magnetic members 22 so that the magnetic attraction force therebetween is maximized with a relatively light weight. Specifically, the first magnetic members 21 of the first edge portion 11 of the same petal 10 are spaced apart from each other, and the second magnetic members 22 of the second edge portion 12 of the same petal 10 are spaced apart from each other. In other embodiments, the number of first magnetic members 21 or second magnetic members 22 of the same petal 10 can be determined according to the size of the toy water ball 100 and the size of the first magnetic member 21 or the second magnetic member 22. The number of first magnetic members 21 or second magnetic members 22 can also be one. In a case where the plurality of first magnetic members 21 or the plurality of second magnetic members 22 are spaced apart, the weight of the toy water ball 100 can be reduced while a sufficient magnetic attraction force is ensured, and the lightness and entertainment interest of the toy water ball 100 can be improved.

In this embodiment, the first edge portion 11 of each petal 10 has a first fitting surface 31, and the first magnetic members 21 are mounted on an inner side, facing away from the first fitting surface 31, of the first edge portion 11; the second edge portion 12 of each petal 10 has a second fitting surface 32, and the second magnetic members 22 are mounted on an inner side, facing away from the second fitting surface 32, of the second edge portion 12.

The first fitting surface 31 and the second fitting surface 32 are both concavely arranged in a natural state and are prone to deformation when squeezed. When the first fitting surface 31 is fit on the corresponding second fitting surface 32 of the adjacent petal 10, under the action of magnetic attraction, the first fitting surface 31 and the second fitting surface 32 are deformed into a tight fit to form a sealed water-retaining layer to prevent the water loaded in the toy water ball 100 from leaking out in advance. Specifically, the first fitting surface 31 or the second fitting surface 32 has an inclined surface leaning toward each other. Understandably, in other embodiments, the first fitting surface 31 or the second fitting surface 32 may be configured to have a flat surface, as long as the sealed and water-retaining effect can be achieved when they are close to each other and fit together under the action of magnetic attraction.

Preferably, the first magnetic members 21 are arranged corresponding to a middle position of the first fitting surface 31, i.e., the midline between inner and outer edges of the first fitting surface 31. The second magnetic members 22 are arranged corresponding to a middle position of the second fitting surface 31. Specifically, the first magnetic members 21 are mounted and fixed inside the first edge portion 11 to avoid affecting the waterproof effect of the first fitting surface 31; similarly, the second magnetic members 22 are mounted and fixed inside the second edge portion 12 to avoid affecting the waterproof effect of the second fitting surface 32.

In this embodiment, an inner surface of the first edge portion 11 of each petal 10 is provided with first grooves 41, and the first magnetic members 21 are fixed in the first grooves 41 respectively. The first magnetic members 21 are fixed in the first edge portion 11 by binding/adhering/bonding. An inner surface of the second edge portion 12 of each petal 10 is provided with second grooves (not shown), and the second magnetic members 22 are fixed in the second grooves. The second magnetic members 22 are fixed in the second edge portion 12 by binding/adhering/bonding. Understandably, in other embodiments, the first magnetic members 21 may also be fixed in the first edge portion 11 by means of snap connection, integral molding, or the like; the second magnetic members 22 may also be fixed in the second edge portion 12 by means of snap connection, integral molding, or the like.

In this embodiment, the first magnetic members 21 and the second magnetic members 22 are both magnets, and both shaped like rectangular blocks. The first magnetic members 21 of the first edge portion 11 and the second magnetic members 22 of the adjacent second edge portion 12 are opposite in polarity to achieve the effect of attracting each other when approaching. In other embodiments, the first magnetic members 21 are magnets and the second magnetic members 22 are iron blocks, or the first magnetic members 21 are iron blocks and the second magnetic members 22 are magnets, which can also achieve a mutual magnetic attraction effect.

Referring to FIG. 7, the toy water ball 100 further includes a connecting member 50 that connects the petals 1 respectively. The connecting member 50 includes an elastic connecting ring 51 and connecting ends 52 respectively connecting the connecting ring 51 to the petals 10. The connecting end 52 is connected to the same end of each petal 10. After the petals 10 are connected by the connecting member 50, when the toy water ball 100 is thrown out and hits a person or falls on the ground and splits open, the petals 10 can remain connected, and there is no need to pick the petals up one by one. Understandably, in some embodiments, the connecting ring 51 can be configured as a common inelastic rope. In addition, in embodiments where few petals 10 are provided, the connecting member 50 can be omitted. For example, in the case of three petals 10 in this embodiment or in the case of two petals 10 in other embodiments, without the connecting member 50, the toy water ball still can be used normally.

In use of the toy water ball 100, a player can hold or grip the toy water ball 100 and put it directly into a water source, for example, in a bucket, river, or sea, and then squeeze the toy water ball 100 hard to deform the petals 10 to a certain extent, so that a gap is formed between two adjacent petals 10 to allow water inflow. After water flows into the toy water ball 100, the player releases the grip on the toy water ball 100, allowing petals 10 to expand and return to their original shape, the first edge portion 11 and the second edge portion 12 of the adjacent petals 10 come into tight fit or contact by virtue of the first magnetic members 21 and the second magnetic members 22, thus achieving the sealed waterproof effect. When the toy water ball 100 fully filled with water is thrown out and hits a person or an object, the adjacent petals 10 are forced to separate from each other, the toy water ball 100 splits open, and the water in the toy water ball 100 splashes out to achieve the game effect.

Compared with a conventional water balloon, the disclosed toy water ball is provided with the first magnetic members and the second magnetic members, so that the toy water ball can be folded or opened repeatedly and thus can be reused; therefore, the water ball is environmentally friendly and clean. In addition, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many environments, and has strong applicability.

Referring to FIG. 8, a toy water ball 100a according to a second embodiment consistent with the present disclosure is illustrated. The toy water ball 100a includes a plurality of petals 10a, and each petal 10a has a first edge portion 11a and a second edge portion 12a; each first edge portion 11a is provided with first magnetic members (not shown), and each second edge portion 12a is provided with second magnetic members (not shown). The toy water ball 100a of the second embodiment is similar to the toy water ball 100 of the first embodiment except that the number of the petals 10a in the toy water ball 100a of the second embodiment is two, and each petal 10a is configured as a hemispherical shell. The toy water ball 100a further includes a connecting member 50a respectively connected to the petals 10a.

Referring to FIG. 9, a toy water ball 100b according to a third embodiment consistent with the present disclosure is illustrated. The toy water ball 100b includes a plurality of petals 10b, and each petal 10b has a first edge portion 11b and a second edge portion 12b; each first edge portion 11b is provided with first magnetic members (not shown), and each second edge portion 12b is provided with second magnetic members (not shown). The toy water ball 100b of the third embodiment is similar to the toy water ball 100 of the first embodiment except that the toy water ball 100b of the third embodiment has four petals 10b, and each petal 10b is configured as a one-fourth-sphere shell. The toy water ball 100b further includes a connecting piece 50b respectively connected to the petals 10b.

Referring to FIG. 10, illustrated 1s a toy water ball 100c according to a fourth embodiment consistent with the present disclosure. The toy water ball 100c includes a plurality of petals 10c, and each petal 10c has a first edge portion 11c and a second edge portion 12c; each first edge portion 11e is provided with first magnetic members (not shown), and each second edge portion 12c is provided with second magnetic members (not shown). The toy water ball 100c of the fourth embodiment is similar to the toy water ball 100 of the first embodiment except that the toy water ball 100c of the fourth embodiment has five petals 10c, and each petal 10c is configured as a one-fifth-sphere shell. The toy water ball 100c further includes a connecting piece 50c respectively connected to the petals 10c.

Referring to FIGS. 11 to 13, illustrated is a toy water ball 100d according to a fifth embodiment consistent with the present disclosure. The toy water ball 100d includes a plurality of petals 10d, and each petal 10d has a first edge portion 11d and a second edge portion 12d; each first edge portion 11d is provided with first magnetic members (as shown in FIG. 13), and each second edge portion 12d is provided with second magnetic members (as shown in FIG. 13). The toy water ball 100d of the fifth embodiment is similar to the toy water ball 100a of the second embodiment except that the toy water ball 100d of the fifth embodiment further includes a connecting member 50d respectively connected to the petals 10d and the connecting member 50d is configured as a sheet. In this embodiment, the connecting member 50d is integrally formed with the first edge portion 11d and the second edge portion 12d of each petal 10d, and then is connected to a main body of each petal 10d. In this embodiment, an outer surface of each petal 10d is provided with a wave-like pattern.

Referring to FIGS. 14 and 15, illustrated is a toy water ball 100e according to a sixth embodiment consistent with the present disclosure. The toy water ball 100e includes a plurality of petals 10e, and each petal 10e has a first edge portion 11e and a second edge portion 12e; each first edge portion 11e is provided with first magnetic members (not shown), and each second edge portion 12e is provided with second magnetic members (not shown). The toy water ball 100e of the sixth embodiment is similar to the toy water ball 100 of the first embodiment except that the toy water ball 100e of the sixth embodiment further includes a connecting member 50e respectively connected to the petals 10e and the connecting member 50e is configured as a sheet. In this embodiment, the connecting member 50e is integrally formed with the first edge portion 11e and the second edge portion 12e of each petal 10e, and then is connected to the main body of each petal 10e. In this embodiment, an outer surface of each petal 10e is provided with a wave-like pattern.

Referring back to the embodiments as shown in FIGS. 11 to 13, further details and variants based on or derived from the embodiments are disclosed.

In some embodiments, as shown in FIGS. 16-21, a toy water ball 100d may include a pair of semi-spherical petals 120 and a connecting member 140 connecting the two hemispherical petals 120. Each of petals 120 may include a body 160, sometimes referred to as water bladder or water pocket, and an edge portion in the form of an annular rim 180 that is on the edge of body 160. As shown in FIG. 17, in some embodiments, rim 180 may extends transversely inwards around the edge of body 160, i.e., rim 180 is disposed around a peripheral direction C, starts from the outer edge of the edge of body 160, and extends radially inwards beyond the inner surface of body 160.

In some embodiments, each of annular rims 180 may have magnetic members 200 mounted thereon. In some embodiments, connecting member 140 may be bendable between an expanded state and a bent state, corresponding to a closed state and an open state of toy water ball 100d with regard to two petals 120. In the closed state, two hemispherical petals 120 meet each other at rims 180 and thus jointly enclose a cavity 220, which may be substantially water-tight to carry water within. Corresponding magnetic members 200 on both annular rims 180 of petals 120 may attract each other so that annular rims 180 of petals 120 may deform to create a water-tight contact, sealing around rim 180 to seal cavity 220 for a water-tight enclosure.

In some embodiments, rim 180 extends transversely inwards into cavity 220, and when rims 180 of two hemispherical petals 120 touch each other, back sides of rims 180 are exposed to water in cavity 220. The water may exert pressures F1 and F2 (see e.g., FIG. 21) from both back sides of rim 180 in opposite directions to further tighten the contact between two petals 120, therefore improving the water-tightness.

As shown in FIGS. 20 and 21, in some embodiments, each rim 180 has a certain elasticity, i.e., is flexible and deformable. When toy water ball 100d is in its closed state, rims 180 of petals 120 deforms to closely engage under the magnetic attraction force generated by magnetic members 200. Specifically, when rims 180 make contacts with each other, corresponding magnetic members 200 of two petals 120 may exert magnetic attraction forces on rims 180, and causes elastic deformation of the portions of rims 180 that are between corresponding magnetic members 200. Because elastic deformation tends to recover when forces causing such deformation are no longer present, it allows rims 180 to closely engage with each other and effectively creates a sealing effect (i.e., water-blocking effect that results the water-tight and/or even air-tight enclosure.)

Specifically, in some embodiments, rims 180 may partially interfere when touching each other under the magnetic attraction force generated by corresponding magnetic members 200. Such interference may result in deformation in the thickness direction (i.e., the direction perpendicular to the surface defined by rim 180), and thus closely engaged contact creating the water-tight sealing effect.

In some embodiments, there are no specific limitations as to the material selection of rims 180: as long as the material has certain elasticity that is flexible and deformable. For example, rims 180 can be made of silicone, thermoplastic elastomers (TPE), polyurethane elastomers, thermoplastic polyurethane (TPU), elastomeric polymers, natural or synthetic rubbers, hydrogels, flexible resins, etc.

In some embodiments, the material of body 160 may be the same as or different from that of rims 180. For example, body 160 may be made of a thin and soft sheet such as silicone. In some embodiments, when both body 160 and rim 180 are made of a same material such as silicone, body 160 may be integrally or partially formed with rim 180 by, for example, an overmolding process using injection molding or compression molding.

In some embodiments, as shown in FIG. 21, the thickness h1 of rim 180 of each petal 120 may be greater than the thickness h2 of body 160. In some embodiments, thickness h2 of body 160 may range from 0.2 to 1 mm, such as 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc. Because thickness h2 is relatively thin, it would not hurt much when toy water ball 100 hits a person. In some embodiments, rim 180 is relatively thicker to facilitate the installation of magnetic members 200, while body 160 may remain thin.

In some embodiments, body 160 may have a uniform and consistent thickness. In some embodiments, body 16 may have a varying, non-uniform thickness, i.e., some portions of body 160 may be thicker than some other portions of body 160. Regardless, in this disclosure, body thickness h2 refers to a thickness of body 160 at a location that has the smallest thickness.

In some embodiments, thickness h1 of rim 180 may range from 2.5 to 5 mm, such as 2.5 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm, etc.

In some embodiments, as shown in FIGS. 16 and 17, connecting member 140 may be made of an elastic and flexible material and bendable between an expanded state and a bent state, i.e., connecting member 140 is capable of deforming and has different bending curvatures, so that petals 120 can be anywhere between the open state (i.e., corresponds to connecting member 140's expanded state) and the closed state (corresponds to connecting member 140's bent state), and anywhere in between.

In some embodiments, connecting member 140 connects two petals 120 together. When toy water ball 100d hits a target (e.g., a human body, ground, walls, or any objects), two petals 120 separate to let water splash out, but remain connected together by connecting member 140. Such arrangement makes toy water ball 100d convenient to use, and prevents petals 120 from getting lost.

In some embodiments, each end of connecting member 140 may connect to body 160 of different petals 120. In some embodiments, each end of connecting member 140 may connect to rim 180 of different petals 120. In some embodiments, one end of connecting member 140 may connect to body 160 on one petal 120, and the other end of connecting member 140 may connect to rim 180 on the other petal 120. In the exemplary embodiment as shown in FIGS. 16 and 17, both ends of connecting member 140 are fixedly connected to rims 180 of two petals 120, respectively.

In some embodiments, connecting member 140 may be a flexible sheet. When toy water ball 100d is in its closed state, connecting member 140 may bend into a C-shape or U-shape and may protrude from the outer surfaces of petals 120.

In some embodiments, the magnetic members 200 may include a plurality of magnets arranged at intervals. In some embodiments, each magnetic member 200 may have a length (i.e., dimension arranged in circumferential/longitudinal direction along rim 180) in the range of 5-15 mm, such as 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, etc. In some embodiments, each magnetic member 200 may have a width (i.e., dimension arranged in radial/transverse direction across rim 180) in the range of 1 to 3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm, etc. In some embodiments, each magnetic member 200 may have a height (i.e., in the thickness direction perpendicular to the surface defined by rim 180) in the range of 1 to 3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc.

There are no limitations on the specific number of magnetic members 200 on each rim 180, i.e., there may be one or a plurality of magnetic members 200 on each rim 180. In some embodiments, a plurality of magnetic members 200 are disposed on each rim 180. The magnetic members 200 on two rims 180 are the same in number and position-wise correspond to each other when in toy water ball 100d's closed state. The plurality of magnetic members 200 on each rim 180 are uniformly distributed circumferentially along rim 180, i.e., evenly spaced with equal intervals.

In some embodiments, there are no limitations as to the specific type of the magnetic members 200. For example, magnetic members 200 may be magnets attached and fixed to rim 180, or may take the form of magnetic powder mixed in the raw material for rim 180 before rims 180 are molded.

In some embodiment, magnetic members 200 may be permanent magnets. The strength of the magnet can be defined by its magnetic flux density. When two magnets have low magnetic flux densities, they may generate a weaker attraction force. When two magnets have high magnetic flux densities, they may generate a stronger attraction force. A weak magnetic attraction force between corresponding magnetic members 200 and/or fewer and more spaced apart magnetic members 200 arrangements may cause water ball 100d to open easily when being thrown, before reaching a target. This may result in water leaking or splashing in the air. Conversely, a larger magnetic flux density may result in stronger magnetic attraction forces between corresponding magnetic members 200, resulting in toy water ball 100d being difficult to open. In such cases, the toy water ball 100d may not open upon coming into contact with a person. As a result, being hit by toy water ball 100d can be painful, especially for children, who can be injured. In some embodiments, magnetic members 200 may have magnetic flux density of about at 130 mT (millitesla) to 260 mT at the center position of the surfaces facing each other to ensure the water ball 100d does not open before reaching a target but opens upon impact with the target.

In some embodiments, the overall size of toy water ball is limited so children may hold it in their hands. For magnetic members 200 with a given magnetic flux density, increasing the number of magnetic members 200 may reduce the spacing between magnetic members 200, causing rims 180 to deform differently, thereby affecting the sealing effect of toy water ball 100d at rims 180. This may also result in toy water ball 100d being difficult to open. In some embodiments, increasing the number of magnetic members 200 may also increase the overall weight of toy water ball 100d, which may also result in painful hits and injuries.

In some embodiments, each rim 180 may have a fitting surface 240 for engaging with rim 180 of the other petal 120, i.e. the fitting surfaces 240 of the two rims 180 abut on each other in the closed position of toy water ball 100d, as shown in FIG. 21. Fitting surfaces 240 are disposed between two corresponding magnetic members 200 so when magnetic members 200 attract each other, fitting surfaces 240 are sandwiched between two corresponding magnetic members 200. In some embodiments, fitting surface 240 of rim 180 of at least one petal 120 is concave or convex in natural state. Here, natural state refers to a state where toy water ball is in its open state, and/or magnetic members 200 are not magnetically attracted to engage each other. In some embodiments, the concave-shaped or convex-shaped fitting surface 240 may deform against the other rim 180 under the magnetic attraction force generated by corresponding magnetic members 200. Such deformation may result in two fitting surfaces 240 being tightly engaged together for an effective water-blocking seal to prevent water leakage.

In some embodiments, by arranging magnetic members 200 so they can sandwich fitting surfaces 240 squeezing the portion of rims 180 therebetween, including fitting surfaces 240. Squeezing of the portion of rims 180 may deform fitting surfaces 240 so requirements on manufacturing precision can be lower, and processing and/or assembly errors may be forgiven. This may further lower manufacturing difficulties.

In some embodiments, fitting surface 240 of at least one rim 180 is concave in its natural state. When corresponding magnetic members 200 on two petals 120 attract each other, the concave fitting surface 240 may deform against the other rim 180 under the magnetic attraction force. When corresponding magnetic members 200 on the two petals 120 attract each other, the magnetic attraction force generated by corresponding magnetic members 200 may squeeze two rims 180 against each other, causing the concave fitting surface 240 to deform to abut on the other fitting surface 240, resulting in two fitting surfaces 240 that are tightly fit together for a water-blocking seal.

In some embodiments, as shown in FIG. 20, fitting surface 240a of one of rim 180a is concave in its natural state, while fitting surface 240b of the upper rim 180b is planar/flat in its natural state. Under the magnetic attraction forces exerted by corresponding magnetic members 200a and 200b, concave fitting surface 240a may deform against and tightly abut on planar fitting surface 240b of the other rim 180b. FIG. 21 illustrates the toy water ball in FIG. 20 in its closed state. Concave fitting surface 240a of rim 180a has deformed due to the magnetic attraction forces into a planar rim to closely fit and abut on planar fitting surface 240b of upper rim 180b. Technically, it is more difficult to manufacture the concave fitting surfaces than manufacturing the flat fitting surfaces. This exemplary embodiment shows that having only one of the two fitting surfaces with a concave shape may achieve the same water-blocking seal, and thus overall production difficulties may be reduced.

The specific manner of forming the concave surface is not limited to the exemplary embodiment as shown in FIGS. 20 and 21. For example, a curved surface may be formed by recessing the middle portion of fitting surface 240 of rim 180 or the entire fitting surface 240, or may be formed by including a plurality of non-coplanar planes or curved surfaces.

In some embodiments, as shown in FIG. 20, at least one rim (e.g., rim 180a) includes an rim main body 260 connected to the corresponding body 160 and a flange 280 extending obliquely inward from the circumferential inner side of rim main body 260. Flange 28 may be flexible and deformable, disposed radially inward of corresponding magnetic attraction member 200, i.e., on the inside in the radial direction R of the body 120, of magnetic members 200a. In some embodiments, fitting surface 240a may include portion of rim main body 260 and portion of flange 280, i.e., rim main body 260 and flange 280 together form concave fitting surface 240a. Under magnetic attraction forces exerted by magnetic members 200a and 200b, flange 280 abuts on and deforming against the other rim 180b. In this exemplary embodiment, rim main body 260 and flange 280 are disposed at an included angle greater than 90° and less than 180°, fitting surface 240b of the other rim 180b has a planar surface in its natural state. When two petals 120 are getting closer to each other under the magnetic attraction force by magnetic members 200a and 200b, flange 280 of rim 180a abuts against the other rim 180b and deforms so that flange 280 changes from a natural, angled position to a biased, planar position. When toy water ball 100d is in its closed state, flange 280 is planar and coplanar with rim main body 260, so that concave fitting surface 240a deforms to form a flat fitting surface, tightly abutting against fitting surface 240b of the other rim 180b. The elastic deformation of flange 280 may bias against fitting surface 240b for enhanced water-blocking effect. In some embodiments, the thickness of flange 280 may taper toward the tip, i.e., thickness of flange 280 gradually decreases along the direction away from rim main body 260. In some embodiments, the thickness of flange 280 is smaller than the thickness of rim main body 260. For example, flange 280 may have a thickness between 0.3 mm and 0.43 mm. The thickness of rim 180a with flange 280 is defined as the thickness of rim main body 260 plus first layer 300 (as discussed below) without flange 280.

In some embodiments, as shown in FIG. 20, rim 180 (e.g., 180b) may include a first layer 300 and a second layer 320. First layer 300 may be an integral part of body 160, extending radially inwards from the outside (i.e., circumferential) edge of body 160. Second layer 320 may be stacked on first layer 300 on the opposite side of body 160, i.e., second layer 320 is disposed on first layer 300, away from body 160. In some embodiments, second layer 320 has a receiving groove (not shown in FIG. 20) to host magnetic members 200, which are disposed in the receiving groove of second layer 320, making fitting surfaces 240 being located on the opposite side of the second layer 320, i.e., away from first layer 300.

In this exemplary embodiment, second layer 320 of one of the rim 180 (lower rim 180a) includes rim main body 260 and flange 280. In assembly, magnetic members 200 may be fixed in the mounting groove/hole of second layer 320. For example, magnetic members 200 may be embedded in the mounting groove/hole by first placing them in the mounting groove/hole of second layer 320 by insert molding, and then overmolding with first layer 300 on second layer 320, thus integrally stacking and merging first layer 300 on second layer 320, covering magnetic members 200 (i.e., embedding magnetic members 200) and the mounting groove/hole. The molding process can be injection molding or compression molding.

In some embodiments, an adhesive layer (not shown) may be disposed between magnetic members 200 and the groove. By applying a layer of adhesives to magnetic members 200 before placing them in the groove/hole of second layer 320, magnetic members 200 are more securely attached to the groove/hole of second layer 320, which provides additional security in performance preventing misalignments of magnetic members 200 in manufacturing process and in use.

The specific manner of fixing between the first layer 300 and the second layer 320 is not limited to the above discussed method. For example, first layer 300 and second layer 320 may be glued together by applying another layer of adhesive between them after each is formed separately.

In some embodiments, the thickness of second layer 320 is greater than the thickness of first layer 300. Magnetic members 200 are mounted in second layer 320. In some embodiments, second layer 320 may be thick enough to allow and facilitate installation of magnetic members 200. In some embodiments, the thickness of second layer 310 may range from 1.5 to 2.2 mm, such as 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm. In some embodiments, the thickness of first layer 300 may range from 1.3 to 1.7 mm, such as 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm.

In some embodiments, second layer 320 may be harder than first layer 300 and body 160. Body 160 is softer so that a person being hit by toy water ball 100d does not feel much pain. Second layer 320 is harder so that it can be easier to have magnetic members 200 placed and hold therein. In some embodiments, the hardness of second layer 320 may be in the range of 50 to 60 ShoreA (which is medium soft), or 54 to 56 ShoreA, or about 55 ShoreA. The hardness of body 160 may be in the range of 30 to 40 ShoreA, or 34 to 36 ShoreA, or about 35 ShoreA. A person skill in the art would understand that a lower ShoreA measurement corresponds to softer material.

In some embodiments, connecting member 140 may be integrally formed with second layer 320 of the two rims 180. The thickness of connecting member 140 may be thinner than the thickness of second layer 320. For example, the thickness of connecting member 140 may be in the range of 0.2 to 1 mm, such as 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc.

In some embodiments, as shown in FIGS. 22 and 23, fitting surfaces 240a and 240b of rims 180a and 180b are both concave in their natural state, i.e., each rim 180a or 180b includes a rim main body 260a, 260b and a flange 280a, 280b, respectively. When two petals 120a, 120b are brought together by the magnetic members 200a and 200b, two flanges 280a and 280b abut against each other and deform so both change from a natural, angled position to a biased, flat position, eventually causing both flanges 280a and 280b to be coplanar with the surfaces of the corresponding rim main bodies 260a and 260b to form a fully abutted and fitted contact, thus creating a water-blocking seal.

Referring to FIGS. 24 to 28, in some embodiments, toy water ball 100f may have two petals 120f. One of two petals 120f has flange 280f extending obliquely inward radially, which is disposed on the circumferential inner side of rim 180f. On rim 180f of the other petal 120f, a notch 360 may be disposed on the circumferential inner side of rim 180f, corresponding to flange 280f. When toy water ball 100f is in its closed state, flange 280f may extend into notch 360 and tightly attach to the inner wall of notch 360 under the magnetic attraction forces generated by corresponding magnetic members 200f, thus forming a water-blocking seal.

In some embodiments, flange 280f may be made of an elastic and flexible material and may be deformable. Flange 280f may have a fitting surface for abutment with the inner wall of notch 360. The fitting surface of flange 280f may be inclined at an angle smaller than the angle of inclination of the inner wall of notch 360 with respect to the contacting surface of corresponding rims 180f. Accordingly, the inner wall of notch 360 may press flange 280f for deformation when flange 280f inserts into notch 360. Eventually, when toy water ball 100f is in its closed state, flange 280f is biased against the inner wall of notch 360 due to its elastic deformation. Flange 280f may therefore be tightly abutted against rim 180f of the other petal 120f, creating a water-blocking sealing effect. Such deformation may also lower requirements on manufacturing precision and to a degree forgive processing and/or assembly errors, thus lower manufacturing difficulties.

In some embodiments, as shown in FIGS. 29 to 33, a toy water ball 100g may have two petals 120g. One of two petals 120g has a convex fitting surface 240g, and the other has a plane fitting surface 240g in its natural state. Under the magnetic attraction forces generated by magnetic members 200g, plane fitting surface 240g may be pressed by convex fitting surface 240g and concavely deformed, tightly abutting against convex fitting surface 240g.

In some embodiments, fitting surface 240g of rim 180g of one petal 120g may have an annular protrusion 380 (see e.g., FIGS. 31-33) circumferentially along rim 180g, making fitting surface 240g convex. Fitting surface 240g of rim 180g of the other petal 120g is planar in its natural state. When toy water ball 100g is in its closed state, annular protrusion 380 may press against fitting surface 240g of rim 180g of the other petal 120g under the magnetic attraction force generated by corresponding magnetic members 200g, and leave a corresponding annular groove 400 on planar fitting surface 240g. In the meantime, annular protrusion 380 may also deform and bias against corresponding annular groove 400, creating a tightly engaged water-blocking sealing.

In some embodiments, two fitting surfaces 240 of rims 180 may be respectively convex and concave. When toy water ball 100 is in its closed state, both fitting surfaces 240 deform under the magnetic attraction force generated by corresponding magnetic members 200, creating tightly engaged water-blocking sealings at where they contact.

The shape of toy water ball 100 is not limited to a sphere. In some embodiments, it may be, for example, a sphere, an ellipse, an irregular sphere, a cartoon shape, or the like, as long as it can form an enclosure to carry and retain water in its closed state. In some embodiment, both petals 120h are in the shape of a hemispherical shell, the bodies 160h of both petals 120h are symmetrical about connecting member 140h. The annular rim 180h of both petals 120h extend transversely radially inward. The outer diameters of rims 180h of both petals 120h are substantially equal, so that when toy water ball is in its closed state, petals 120h are touching each other at rims 180, the outside edges of rims 180h are aligned and thus a spherical toy water ball 100h is formed.

In some embodiments, toy water ball 100 may take on other contoured configurations (i.e., non-spherical) in its closed state. For example, as shown in FIGS. 34 and 35, a toy water ball 100h has a cartoon shape. In this exemplary embodiment, toy water ball 100h takes a duck shape, making the appearance of toy water ball 100h more lovely. Two petals 120h are symmetrical about connecting member 140h. Each of two petals 120h itself has an asymmetrical configuration. Rims 180h of petals 120h are non-circular.

In some embodiments, as shown in FIGS. 36 and 37, toy water ball 100i takes a crab shape, making the appearance of toy water ball 100i more lovely. Two petals 120i are symmetrical about connecting member 140i. Each of two petals 120i itself has a symmetrical configuration. Rims 180i of petals 120i are non-circular.

Understandably, the disclosed toy water is not limited to being filled with water, and the disclosed toy water ball may be filled with other liquids suitable for people's entertainment, such as beer, milk or other liquids harmless to the human body or other potable liquids.

The above-described embodiments show several implementations consistent with the present disclosure, which are more specific and detailed, but not to be construed as limiting the scope of the disclosure. It should be noted that those of ordinary skill in the art may further make variations and improvements without departing from the conception of the present disclosure, and these all fall within the protection scope of the present disclosure. Therefore, the patent protection scope of the present disclosure should be subject to the appended claims.

Claims

1. A toy water ball, comprising a pair of petals and a connecting portion connecting the petals, each of the petals comprising a body and an annular rim portion extending inwardly from a peripheral edge of the body, each of the annular rim portions including a magnetic attraction member; when the valve body is in a closed state, the valve body encloses together to form a water carrying cavity, the magnetic attraction pieces on the valve body attract each other to enable the annular edge portions of the valve body to be tightly attached, so that a water blocking layer is formed to seal the water carrying cavity, and the annular edge portions extend into the water carrying cavity.

2. The toy water ball of claim 1, wherein each of the annular edge portions is an elastomer, and wherein when the flap is in the closed state, the annular edge portions of the flap deform toward each other to conform closely under the magnetic attraction generated by the magnetic attraction member.

3. A toy water ball according to claim 2, wherein the two annular edge portions interfere in the thickness direction thereof to deform during switching of the flap to the closed state under the influence of the magnetic attraction force.

4. A toy water ball according to any one of claim 1, wherein each of said annular rim portions includes a mating surface for mating with another of said annular rim portions, said mating surface of at least one of said annular rim portions being concave or convex in nature, said concave or convex being deformed toward the other annular rim portion by magnetic attraction generated by said magnetic attraction member.

5. The toy water ball of claim 4, wherein the engagement surface of each of the annular rim portions is concave in nature, or wherein the joint surface of one annular edge part is a concave surface in a natural state, and the joint surface of the other annular edge part is a plane in a natural state; or wherein the joint surface of one annular edge part is convex in a natural state, and the joint surface of the other annular edge part is concave in a natural state; or wherein the joint surface of one annular edge part is convex in a natural state, and the joint surface of the other annular edge part is plane in a natural state.

6. The toy water ball of claim 4, wherein the annular rim portion of at least one of the petals includes an annular main body connected to the body of the corresponding petal and a flange extending obliquely inward from a circumferential inner side of the annular main body, the flange being located laterally inward of the magnetic attraction member of the corresponding petal, a surface of the annular main body and a surface of the flange together forming an abutment surface of the annular rim portion, the flange abutting against and deforming against the other annular rim portion under the action of the magnetic attraction force, the thickness of the flange being smaller than that of the annular main body and the thickness of the flange tapering in a direction away from the annular main body.

7. A toy water ball according to any one of claim 1, wherein the circumferential inner side of one of the annular rim portions is provided with an inwardly inclined extending flange, and the circumferential inner side of the other annular rim portion is provided with a recess corresponding to the flange, and when the flap is in the closed state, the flange extends into the recess and is in close contact with the inner wall of the recess under the effect of magnetic attraction generated by the magnetic attraction member.

8. The toy water ball of claim 7, wherein the flange is provided with an abutment surface for abutment with the inner wall of the recess, the abutment surface of the flange being inclined at a smaller angle relative to the central axis of the respective annular rim portion than the inner wall of the recess.

9. The toy water ball of claim 1, wherein each of the annular edge portions includes an abutment surface for abutting against another of the annular edge portions, wherein the abutment surface of one of the annular edge portions is provided with an annular protrusion, the abutment surface of the other of the annular edge portions is planar in a natural state, and when the flap is in the closed state, the annular protrusion presses the abutment surface of the other of the annular edge portions under the action of magnetic attraction generated by the magnetic attraction member and forms an annular groove on the abutment surface of the other of the annular edge portions, the annular protrusion being in close abutment with an inner wall of the annular groove.

10. The toy water ball of claim 1, wherein each of the annular rim portions includes a first layer and a second layer stacked in a thickness direction thereof, the first layer integrally extending from the circumferential edge of the body, the second layer being stacked on the first layer, the magnetic attraction being provided on the second layer.

11. The toy water ball of claim 10, wherein the thickness of the second layer is greater than the thickness of the first layer; or the softness of the second layer is greater than the softness of the body; or the softness of the second layer ranges from 50 degrees to 60 degrees, and the softness of the body ranges from 30 degrees to 40 degrees.

12. The toy water ball of claim 10, wherein the connection portion is integrally formed with the second layer of the annular rim portion, the connection portion having a thickness that is less than a thickness of the second layer.

13. The toy water ball of claim 1, wherein a thickness of the annular rim portion of each flap is greater than a thickness of the body; or the thickness range of the minimum part of the body thickness is 0.2-1 mm; or the thickness of the annular edge part ranges from 2.5 mm to 5 mm.

14. The toy water ball of claim 1, wherein the bodies of a pair of the petals are symmetrical about a midline of the connection; and each valve body is of a symmetrical structure or an asymmetrical structure.

15. The toy water ball of claim 1, wherein the connection is changeable between a deployed state and a curved state to correspond to an open state and a closed state of the petals; when the pair of valve bodies are in a closed state, the connecting part is bent to be in a C-shaped or U-shaped structure and protrudes out of the outer surfaces of the valve bodies.

16. The toy water ball of claim 1, wherein each of the annular rim portions includes an abutment surface for abutment with another of the annular rim portions, the magnetic attraction member includes a plurality of magnets disposed at intervals, and a magnetic flux density at a center position of the abutment surface corresponding to the magnets is 130MT to 260MT.

17. The toy water ball according to claim 16, wherein a plurality of receiving grooves for respectively receiving the magnets are formed in each annular edge portion, an adhesive layer is formed between the magnets and the groove walls of the receiving grooves, and each annular edge portion is integrally formed on the periphery of the magnets and wraps the magnets therein by means of injection molding or hot press molding.