The invention described herein and in the applications referred to above is designated as a pin screen. The pin screen is a multi-purpose entertainment device. It functions as an artistic animation image producer or display by creating visual patterns resulting from the displacement of a plurality of pins relative to a supporting apertured plate. The pin screen is aesthetically appealing and also provides enjoyable participatory entertainment for both children and adults.
Summary of the Invention
In carrying out this invention in one illustrative embodiment thereof, a pin screen for providing a three-dimensional image of an object applied thereto has at least one vertically oriented plate containing a plurality of closely spaced apertures. A plurality of pins having heads larger than the apertures are horizontally disposed and are held in their selected positions by frictional engagement in said apertures. The plate has a thickness less than the length of the pins exposing portions of pins which extend through the plate. The pins are adapted to be selectively axially displaced in said plate when the exposed end portions come into contact with an object creating a three-dimensional image of the object. A vertically oriented transparent cover parallel to the apertured plate is provided to prevent the pins from falling completely out of the plate head first.
In the preferred embodiment two spaced, thin, parallel plates with aligned horizontal apertures are employed. If a single plate is used, it must be thicker to retain the pins in displaced position so that the pins will not pivot when displaced in order to provide a truer three dimensional image. In either embodiment, the pins are longer than the separation between the plate or plates and the transparent cover.
Brief Description of the Drawings
FIG. 1 is a side view, in section, illustrating an embodiment of the invention in which the pin screen has two vertical apertured plates and the pins are displaced horizontally.
FIG. 2 is a side view, in section, similar to the vertical pin screen of FIG. 1 except this embodiment includes only a single vertically oriented apertured plate.
FIG. 3 illustrates the embodiment shown in FIG. 1 in which a transparent sheet has been added to limit the degree of horizontal displacement of the pins and to retain the pins.
FIG. 4 illustrates the embodiment shown in FIG. 2 in which a transparent sheet has been added to limit the degree of horizontal displacement of the pins and to retain the pins.
FIG. 5 is a perspective view of the pin screen illustrated in FIG. 3 showing a three-dimentional image resulting from the selective horizontal displacement of the pins.
Description of the Preferred Embodiment
The preferred embodiments of a three-dimensional, image-creating pin screen in accordance with the present invention is illustrated in FIGS. 3, 4 and 5 of the drawings.
In FIG. 1, a vertically oriented housing 100 includes two parallel vertical apertured plates 102 and 104. The two vertical plates have horizontally aligned apertures 106, and the plates are spaced a predetermined distance apart by bolts and spacers generally designated by reference numeral 101. As seen in FIG. 1, the spacers are tubes surrounding the shanks of the bolts. A plurality of pins 108 have their shanks received in and inserted through the respective aligned openings or apertures 106 defined in both parallel vertical plates. Each pin 108 is inserted through one opening in the first plate 102 and the same pin extends to and is inserted through the corresponding horizontally aligned opening in the second plate 104. The spacing between the two vertical plates is less than the length of the pins.
As illustrated in FIG. 1, the pins 108 are inserted through the parallel plates such that the respective pin heads are closest to apertured plate 104, while the ends of the pins are closest to the apertured plate 102. The user of the pin screen may selectively displace the pins by pressing against the pin ends extending through the left side of the plate 102 to horizontally displace pins and pin heads towards the right in FIG. 1. For example, the user may force his face against the pin ends on the left side of plate 102, resulting in pins corresponding to the three-dimensional configuration of the face being displaced towards the right. The horizontally displaced pin heads, when viewed from the right side of plate 104, recreate a three-dimensional configuration of the object displacing the pins, which in the above example, is the user's face. The pins are held in their displaced positions in the respective apertures in plates 102 and 104 by frictional engagement between the bodies or shanks of the pins and the apertured plates. The spacing between the two vertical plates is sufficiently great to assure that the horizontally displaced pins 108 will not pivot and slope down significantly below horizontal relative to the two vertical apertured plates, but will remain horizontally oriented.
Preferably, the pins will be about 3 inches in length and the plates will be separated by a distance less than the length of the pins. Preferably, the plates will be separated by about 1/2 inch but not more than about 21/2 inches to allow at least a 1/2 inch range of horizontal displacement of the pins. The plates may be formed from 22 gauge steel or from phenolic or other rigid plastics. The pin shanks may be about 1/16 inch in diameter and the apertures in the plates will be slightly larger than the diameter of the shanks. The pins heads are sufficiently large to prevent the heads from passing through the apertures, preferably about 1/8 inch. The ends of the pins will be flat or rounded and not pointed to prevent injury or damage to the objects pressed against them. In the preferred embodiment of the vertical pin screen, the spacing of the apertures 106 in each apertured plate is about 7/64 inch center to center. The apertures in the plates can be defined in a staggered row pattern with alternate rows aligned.
FIG. 3 is similar to the embodiment of FIG. 1 except that the pin screen housing 100 now includes a vertical transparent cover 107 parallel to the plates 102 and 104 and spaced to the right of plate 104. The distance between the transparent cover and the leftmost apertured plate 102 must be less than the length of the pins, preferably about 1/2 inch less. In the embodiment of FIG. 3, the heads of horizontally displaced pins abut against the transparent cover, thus preventing a user from pushing the pins completely out of the apertured plates. The transparent cover may be a thin glass or plastic sheet and can be supported in vertical position by extended bolts and spacer elements 101 extending from apertured plate 104.
In both the FIGS. 1 and 3 embodiments of the invention, the displaced pins are returned to the initial position (in which the pin heads abut against the right side of the apertured plate 104) by gravitational forces by lifting the housing 100 and tilting it to the left. Also, in the FIG. 1 embodiment, the displaced pins may be returned to the initial position by physically pushing the pin heads to the left from a position to the right of apertured plate 104.
The embodiments of FIGS. 2 and 4 are substantially identical to the embodiments of FIGS. 1 and 3, respectively, with one exception. Instead of the two relatively thin parallel apertured vertical plates 102 and 104 of the FIGS. 1 and 3 embodiments, the FIGS. 2 and 4 embodiments include a single thick apertured vertical plate 110. The thickness of the single plate 110 must be less than the length of the pins, and is approximately equal to the separation distance of plates 102 and 104 of FIGS. 1 and 3. The pins are held in the single plate 110 by frictional engagement therewith, and the plate is sufficiently thick (e.g., 1/2") relative to the length of the pin shanks (e.g., 3") to prevent pivoting of the pins and to maintain the horizontal orientation of the pins. The operation and structure of the FIGS. 2 and 4 vertical pin screen embodiments, except as noted herein, are identical to that of FIGS. 1 and 3. Accordingly, corresponding reference numerals have been used for corresponding structure.
FIG. 5 is a perspective view of the embodiment of the vertical pin screen of FIG. 3. FIG. 5 shows the three-dimensional configuration of the head ends of the pins as viewed from the right side of any of the embodiments of FIGS. 1-4. The three-dimensional image of a hand is formed by the horizontal displacement of pin heads resulting from the impression of the image to be reproduced against the ends of the pins extending from the left side of the pin screen illustrated in FIG. 3. This three-dimensional image of the hand created by the displaced head ends of the pins will be retained until the positions of the pins is restored to their initial non-displaced positions in the plates or otherwise varied from the positions illustrated in FIG. 5.