Patent Application
20140349546
1. Field of the Invention
In general, the present invention relates to pop-up toys and similar novelty devices having resilient bodies that enable the toy to pop up after having been compressed. More particularly, the present invention relates to toys and novelty devices having components made from braided sleeves.
2. Description of the Prior Art
In the toy industry, a pop-up toy is the name commonly given to a class of toys that pop up after having been manually depressed. Such toys commonly have coil springs and suction cups. The spring is manually compressed until the suction cup can engage the surface under the toy. The compressed spring acts to free the suction cup. When the suction cup loses suction, the energy stored by the spring is released and the toy jumps or ‘pops’ up into the air. Such prior art pop-up toys are exemplified by U.S. Pat. No. 1,657,936 to Nebel, entitled Jumping Figure Toy, U.S. Pat. No. 7,140,945 to Dinhofer, entitled Gyrating Toy; and U.S. Pat. No. 2,224,456 to Janas, entitled Toy Doll.
In recent years, toy manufacturers have been becoming more concerned with product safety. Traditional pop-up toys that use compressed springs have certain inherent safety concerns. First, it is difficult to permanently attach a suction cup or a plastic novelty object to a metal spring. If a child pulls upon a traditional pop-up toy, as often happens, the spring detaches, therein exposing a sharp metal point. Furthermore, exposed metal springs have a tendency to pinch skin when compressed. Exposed metal springs also have a tendency to become entangled in a child's hair.
Recognizing the problems associated with metal springs, the Applicant has invented pop-up toys that utilize braided sleeves instead of coil springs. The braided sleeve is plastic. However, it can store energy like a spring when compressed. The stored energy is sufficient to pop a toy into the air. The Applicant's pop-up toys that use braided sleeves are shown in U.S. Pat. No. 7,806,746 to Waltersheid, U.S. Pat. No. 8,371,899 to Walterscheid, and U.S. Patent No. D641,433 to Walterscheid.
Although pop-up toys that use braided sleeves do have many advantages over similar toys that use metal springs, the use of braided sleeves does come with some disadvantages. One disadvantage of using a braided sleeve is that of uneven vertical compression. Since braided sleeves are made from hundreds of plastic filaments that are braided together, it will be understood that certain areas of the braided structure differ slightly. The difference can be in the density of the braid, the quality of the filaments or the degree of damage in the filaments caused by wear. Whatever the cause, the variations in the braided sleeve cause the braided sleeve to compress unevenly when a downward force is applied to the braided sleeve. As a result, the braided sleeve tends to compress more in one area than another. This causes the braided sleeve to bend or twist as it is compressed. If the bend becomes severe, the braided sleeve can slip laterally and expand sideways before the braided sleeve is fully compressed. Of course, once the braided sleeve extends sideways, all compression is lost and the braided sleeve will not pop up.
Another disadvantage inherent in braided sleeve pop-up toys is one of invagination of the braided sleeve during compression. When a braided sleeve is compressed, it expands in diameter. Sometimes the braided sleeve can expand too far. If the braided sleeve expands into a bulge that is too wide, then the braided sleeve above the bulge can collapse into the bulge and cause the braided sleeve to invaginate by folding into itself. Again, if such a folding occurs, all compression is lost and the braided sleeve loses its ability to pop up.
A need therefore exists for a new structure for a pop-up toy that uses a braided sleeve, yet avoids the problems of side flaring and top folding that are inherent with braided sleeves. These needs are met by the present invention as described and claimed below.
The present invention is a novelty pop-up toy and its associated methods of manufacture and operation. The pop-up toy has a head that is supported on a braided sleeve body. When the pop-up toy is compressed, the braided sleeve body elastically deforms from an uncompressed state to a compressed state. While in the compressed state, the braided sleeve body stores energy. If the compression force is suddenly released, the braided sleeve body releases its stored energy and pops back into its uncompressed state. As the braided sleeve body returns to its uncompressed state, it rapidly expands, therein providing enough force to propel the entire pop-up toy into the air.
The head of the pop-up toy assembly has a bottom surface. An internal compartment is disposed in the head. The internal compartment is accessible through an opening in the bottom surface of the head. The braided sleeve has a top end and a bottom end. The braided sleeve is selectively compressible between an uncompressed state and a shorter compressed state. The top end of the braided sleeve attaches to the head within the internal compartment. The braided sleeve extends from the bottom end of the head when in its uncompressed state. However, the braided sleeve completely fits within said internal compartment when the braided sleeve is in its compressed state.
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 pop-up toy assembly can be configured in many different ways, only a simple embodiment is shown. The embodiment has been selected for ease of understanding and illustration. It should be understood that the selected embodiment is only exemplary and it should not be considered a limitation on the scope of the present invention as defined by the claims.
Referring to
In the present invention pop-up assembly 10, the strands 16, 18 of the braided sleeve 14 are plastic. Accordingly, they can be manufactured in any selected color and embody a high degree of flexibility. The braided sleeve 14 can be a single layer tube or a double layer tube. Furthermore the braided sleeve 14 can be cylindrical in shape when not compressed or it can be formed to be frustum shaped with a wide bottom end 20 and a narrow top end 22, as is illustrated.
When the braided sleeve 14 is compressed along its length with a compression force, the braided sleeve 14 shortens and widens. As a braided sleeve body 14 shortens and widens, it stores energy. As soon as the compression force is removed, the braided sleeve body 14 will spring back into its uncompressed state, therein releasing the stored energy. In
When in its optimally compressed condition, the braided sleeve 14 is not over-compressed, so as to be in danger of collapsing and folding into itself. However, the braided sleeve 14 is compressed enough to store the spring energy needed to propel the pop-up toy assembly 10 into the air.
The head 12 of the pop-up toy assembly 10 has an inverted cup shape. That is, the head 12 is hollow and has an open bottom 24. The head 12 has a top surface 26. The top surface 26 is preferably curved to assist in the sliding of a finger off the top surface 26 during the launching of the pop-up toy assembly. A peripheral wall 28 extends downwardly from the top surface 26, therein defining an interior compartment 30. The interior compartment 30 is only accessed through the open bottom 24, wherein the open bottom 24 is defined by the bottom rim 32 of the peripheral wall 28. The interior compartment 30 has an interior depth D1 and an interior diameter D2. In the shown embodiment, the head 12 has a simple cylindrical shape. It should be understood that the exterior of the head 12 can be formed into many complex shapes, such as toy character shapes.
The top end 22 of the braided sleeve 14 is connected to the head 12 of the pop-up toy assembly 10 inside the interior compartment 30. The top end 22 of the braided sleeve 14 is coupled to the center of the head 12 so that the braided sleeve 14 is concentric with the interior compartment 30 as it extends down the center of the interior compartment 30.
From
As stated, the interior diameter D2 of the internal compartment 30 is only slightly larger than the maximum width W2 of the braided sleeve 14 when optimally compressed. The interior diameter D2 of the interior compartment 30 is preferably no more than ten percent wider than the maximum width W2 of the braided sleeve 14 in its compressed state. As such, it will be understood that the presence of the braided sleeve 14 in the interior compartment 30 physically prevents the braided sleeve 14 from twisting or bulging laterally to any significant degree. Consequently, the compression of the braided sleeve 14 into the internal compartment 30 ensures that the braided sleeve 14 will be compressed only to its optimal compression point. Furthermore, it ensures that the braided sleeve 14 will compress vertically and will not bulge in an asymmetrical manner.
The head 12 of the pop-up toy assembly 10 is preferably made from a polymer foam, synthetic rubber, or another soft, lightweight material. As the pop-up toy assembly 10 pops into the air, the use of a soft, lightweight material for the head 12 prevents the head 12 from causing any impact injuries as the toy assembly 10 flies. Furthermore, the use of soft, lightweight material enables the pop-up toy assembly 10 to pop up a significant distance into the air.
The term “head” is intended to include any molded object that rests upon the braided sleeve 14 and should not necessarily be considered only the head of a figure having facial figures. For example, if the pop-up toy assembly 10 were configured as a rocket, the “head” may be considered the nose cone at the top of the rocket.
Referring to
In
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 changes to the shown embodiment without departing from the intended scope of the invention. For instance, in the illustrated embodiment, the pop-up toy assembly 10 is shown having a simple cylindrical head 12. It should be understood that the pop-up toy assembly 10 can have many other shapes, such as a rocket ship, mushroom, or flower. Thus, the pop-up toy assembly 10 can be shaped as a character or any other object as a matter of design choice. All such variations, modifications, and alternate embodiments are intended to be included within the scope of the present invention as defined by the claims.
