In general, the present invention relates to articulable toy figures. More particularly, the present invention relates to toy figures that have posable internal frames that are over-molded in a flexible material, therein forming the shape of a character.
Dolls and play figures have existed throughout recorded history. During this long history, dolls and play figures have been produced in countless shapes and sizes and with a variety of features. It is generally understood that the play value of a toy figure increases if the toy figure can be moved into different poses. Accordingly, many dolls and play figures have jointed limbs that enable the limbs to be posed in different orientations.
At first, joints on toy figures where visible external structures and the toy figure required assembly. Assembly complicates the manufacturing process, therein adding significant costs. Assembly issues can be simplified by using various injection molding techniques. Internally jointed skeletons can be produced in an automated fashion. The jointed skeletons can then be internally set within the structure of a doll or toy figure during the molding process. Typically, the jointed skeleton is made of metal parts, such as metal wire. Using metal helps maintain the integrity of the jointed skeleton as the remainder of the doll or toy figure is molded. Prior art toy figures with wire skeletons are exemplified by U.S. Pat. No. 1,595,203 to Leathers and U.S. Pat. No. 3,624,691 to Robson.
There are some problems inherent with using metal skeleton framework within a plastic figure. One problem is that the manufacturing process requires two separate sets of forming tools. One set is used to manufacture the metal skeleton framework. The second set is used to form the plastic around the metal skeleton framework. Often, a significant volume of plastic must be used in order to fully encapsulate the internal metal framework.
Another problem with using a metal skeleton framework is the range of motion available for posing. Skeleton frameworks may enable bending. However, skeleton frameworks typically do not allow for any significant twisting. In order to allow for twisting, simple hinge joints must be replaced with ball and socket joints, such as in U.S. Pat. No. 6,110,002 to Langton.
Making joints from metal and/or making ball and socket joints adds significantly to the cost and labor of making a posable figure. Furthermore, using large volumes of plastic to encapsulate an internal metal framework also significantly adds to the cost of production. It is for these reasons that toy figures intended for low-cost sale do not contain ball and socket joints.
A need therefore exists for a figure design and improved method of manufacture that enables a toy figure to be made with ball and socket joints, without using metal, without using large volumes of plastic and without requiring assembly. These needs are met by the present invention as described and claimed below.
The present invention is an articulable toy figure that has multiple body parts. The body parts are joined by ball and socket joints that enable the different body parts to move relative one another. The ball and socket joints contain ball structures that are seated within socket structures.
Frame sections are disposed within each of the body parts. The frame sections are molded from a first plastic. The ball structures of the ball and socket joints are molded as part of the frame structures. As such, the ball structures are molded from the first plastic. In addition, narrowed breakaway necks are molded into the frame structures immediately adjacent the ball structures.
Body features are over-molded onto various frame structures. The body features are molded from a second plastic that has a lower molding temperature than that of the first plastic. The socket structures of the ball and socket joints are molded as part of the body features. As such, the socket structures are molded from the second plastic. After the body features are over-molded, the various body parts are complete. When a body part is first manipulated, the narrowed breakaway neck within the internal frame structure breaks. This frees the ball structure on the frame structures to move within the socket structure of the body feature. This produces a functional ball and socket joint that enables the various body parts to be selectively posed.
For a better understanding of the present invention, reference is made to the following description of an exemplary embodiment thereof, considered in conjunction with the accompanying drawings, in which:
Although the present invention toy figure can be embodied in many ways, only one exemplary embodiment is illustrated for the purposes of explanation and description. The exemplary embodiment is selected in order to set forth one of the best modes contemplated for the invention. The illustrated embodiment, however, is merely exemplary and should not be considered as a limitation when interpreting the scope of the appended claims.
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The segmented body 12 is made from two molded plastics. The segmented body 12 includes an internal frame 36 that is molded from a first plastic 51 and body features 38 that are molded from a second plastic 52. The first plastic 51 of the internal frame 36 is preferably a relatively hard plastic with a high melting point and a flexural modulus of at least 2 Gpa. The second plastic 52 of the body features 38 is preferably a softer plastic, such as an elastomeric plastic, with a molding temperature that is lower than the melting point of the first plastic 51. As will later be explained in more detail, the internal frame 36 is molded first. The second plastic 52 is then over-molded around specific areas of the internal frame 36 to form the body features 38. The results include ball and socket joints 30 that are partially made from the first plastic 51 and partially made from the second plastic 52.
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Sections of the internal frame 36 are then over-molded in a second injection molding process 64. This is accomplished by placing the initial molding 62 into a secondary mold and injecting the second plastic 52 around areas of the internal frame 36. The second plastic 52 is molded into the various body features 38 to complete the toy
It will be understood that the embodiment of the present invention that is illustrated and described is merely exemplary and that a person skilled in the art can make many variations to that embodiment. All such embodiments are intended to be included within the scope of the present invention as defined by the claims.