Abstract:
An apparatus for use in performing intercourse, including: a horizontal support designed to support a female in the supine position; a bearing assembly attached to the outside of the horizontal support; and a base horizontally slidably attached to the bottom of the bearing assembly. The bearing assembly is designed to permit rotation of the horizontal support about the axis of rotation of the bearing assembly. The horizontal support and bearing assembly are designed so that this axis of rotation is coaxial with the longitudinal axis of the sex organ of the female when she is supported on the horizontal support in the supine position. The heights of the horizontal support and base are adjustable. Thus the height of the female&#39;s sex organ can be adjusted for penetration by a male partner&#39;s sex organ when the male partner is standing at the correct end of the horizontal support.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    (1) Field of the Invention 
         [0002]    The present invention relates to the field of sexual aids and more particularly to machines that provide means for rotary stimulation during sex. 
         [0003]    (2) Description of the Related Art 
         [0004]    Sex is one of mankind&#39;s ultimate forms of natural pleasure and is also crucial for mankind&#39;s survival. In fact, if we Google the words ultimate pleasure, we will see that all references will be about sex and intimacy. Sex is universally practiced by every capable individual regardless of culture and race. Various studies emphasize how important sex is in a relationship. Sex is also considered to be the ultimate form of pleasure that a man can ever experience naturally. 
         [0005]    Sexual intimacy is the single moment in which a man and woman experience various chemical and biological processes that affects their bodies in a very positive way. Perhaps this is the reason why, according to a report, the most expensive purchases made by men are ultimately linked to sex. Some of these indirect purchases are expensive cars, jewelry and even paying for frame to make it easy for sex to happen either from casual acquaintance or from a spouse. 
         [0006]    In one study, in a recently published book, it was even mentioned that sex is one of the most important parts of a relationship. In this same book, (promoted in CBS&#39; The Saturday Early Show) the author explained why married couples should have sex and how to do it better. This study together with many other studies done by acknowledged authorities in Marital Relationships, Stress Relief, Personality Development and more, concur that good sex enhances a relationship and improves a person&#39;s mood, both short term and long term. Consequently, each of these studies are united in saying that exploring new ways of performing sex is among the best way, not only to enjoy it but also to sustain the enthusiasm for it. 
         [0007]    Since the beginning of time, numerous coupling positions have been introduced by men of various cultures and races. From the most familiar position, called the missionary position, to other positions that even imitate animals. While there are other ways to enjoy sex, the only way that can result into the impregnation of a woman naturally is by the penetration of the male organ into the female organ and the release of the sperm inside the female organ. A superior sperm will then fertilize the egg which in turn will ultimately result into the creation of another human being. This method of penetration by the male organ of the female organ and then the repeated in and out action sums up all the position mankind has known in the sex act. We may read or discover a new method of performing sex but it will almost surely involve the same act in which the male organ will go in and out of the female organ. This act has remained the same since the beginning of time to now. 
         [0008]    Not surprisingly the field of sexual aids has been a fertile one for inventors. U.S. Pat. No. 5,294,176 is directed to a sexual device for handicapped men with limited mobility of the lower part of the trunk. The device is intended to put the male partner of a sexual union more largely in control of the act and thus allows him to feel more independent with great psychological benefits. Referring to the Figures, the device includes a support member  10  with a seating platform  12  wherein the support member  10  comprises a pair of vertical legs  14 , the legs being adjustable in height so as to accommodate a variety of individuals. The seating platform may include a backrest  30 , a footrest  32 , and also may include handles  34  which facilitate the manipulation of the device by the male member during use. The seating platform  12  also includes an annular member  28  which may be lowered and engaged with balls or casters when supported by support  10  so as to be rotatable with respect to the support  10 . To use the device, the male partner lies supine on a surface such as a bed or floor and places the device across the lower portion of his trunk centered roughly above his genital area. The female partner is then seated on platform  12  utilizing backrest  30  and footrest  32  positioning herself so that the male partner may insert his sexual organ into that of his female partner and achieve sexual intimacy. The device then allows for two different kinds of motion to maximize the satisfaction of both partners. The motion may be created by the man&#39;s arms or a motorized or mechanical device may also be used. The two types of motion possible are a rotational motion in the horizontal plane which comes about when the seating platform rotates about a vertical axis at any desired angular rate and frequency. The second type of available motion is the rocking back and forth of the base about the base of legs  40 . As already stated, the legs  40  are of a height and may be adjusted to insure proper penetration of the female sex organ by the male sex organ during intercourse. 
         [0009]    U.S. Pat. No. 5,971,480 is directed to spinning and/or swinging, hanging seat for erotic purposes. The seat element is suspended from two parallel poles which are in turn suspended from the ends of a third pole with the third pole being suspended by means of the ropes from a fixed point. In the first embodiment, one participant utilizes the seat system with the man lying on his back beneath the seat while the woman floats cross-legged above him. The hole  14  in the seat  13  makes it possible for the male and female partners&#39; genital systems to access one another to achieve intimacy. Since the seat system is suspended at a single point with a spring  21  in the system, it is possible to achieve various motions, such as spinning, swinging, bobbing, and shaking. For example, when the woman is rotated, the rope is wound and when released, the woman is rotated in the reverse direction. 
         [0010]    U.S. Pat. No. 4,825,855 is directed to an intercourse aiding apparatus utilizing a rigid frame supported above a bed and suspended by cables. The suspended cloth panel has an opening  32  that exposes the genitalia of a user seated thereupon in a spaced relationship above the bed where the second partner is positioned. In use, the woman sits in seat  44  with her genitalia extending downwardly and exposed through opening  32  for contact with her male partner lying beneath her on bed  26 . The female partner&#39;s feet may rest on bed  26  so that she may rock herself or otherwise move according to her and her partner&#39;s sexual taste. It is obvious from the description given that both reciprocating and rotational motions may be achieved between the two partners relative to one another. U.S. Pat. Nos. 7,018,329 and 5,782,243 also describe devices that make it possible to achieve both rotational and reciprocating motions between male and female partners engaging in sexual intercourse. 
         [0011]    US Patent Application Publication No. 2003/0221692 is directed to a sexual aid turntable system which may be used for providing a new and unusual platform for engaging in sexual acts. Referring to the Figures, the device comprises a turntable system  10  with a platform  20  and an aperture  22  at the center of platform  20 . The platform  20  is of sufficient thickness to bear the weight of an individual using the device and the platform  20  is attached to a ball thrust bearing assembly  30  attached to a supporting frame  20  which includes adjustable feet  50 . The adjustable feet  50  may be used to adjust the height of the platform to a height that may be comfortable to the users of the device. In use, a male participant may lie on his back with the aperture  22  of platform  20  positioned above the genital area of the male user. A second participant may then sit on the platform  20  in a manner such as the genital area of the second participant is located above the aperture area  22  so that the two participants may then participate in mutual sexual activity. During this activity, the platform may then be manually rotated to make it possible for one participant to rotate about the second participant in a 360° rotational manner. 
         [0012]    U.S. Pat. No. 5,875,779 is directed to an arcuately reciprocating human sexual fitness machine. The device comprises a pair of seats, one for the male and one for the female, and provides for the female occupant to pivot and reciprocate along an arcuate path forwardly about a horizontal axis and away from the other seat and may also reciprocate along a horizontal path. Referring to the Figures, the female figure F is seated in female seat  12  and the male figure M is seated in the male seat  14  while both seats are supported for longitudinal and rectilinear movement along rail  20  as shown in  FIGS. 6 and 7 . The housing  26  and the rollers  30  together with dolly assembly  40  for female seat  12  is identical in structure and function to the rolling support dolly  40  for the male seat  14 . Positioned within the stanchion  42  is rotatable solid pedestal  46  which is resiliently urged within the stanchion  42  by means of coiled spring at the lower end of the pedestal. Thus, the seats have both rotational movement about a vertical axis and have a limited vertical movement as well. The seated female sits comfortably on seat  12  with her legs positioned to straddle the seated male and allowing the female partner to tilt arcuately forwardly from an upright position as seen in  FIG. 2  and to tilt or pivot about a horizontal axis  74  from the horizontal plane to a degree of about 30°. The male seat is connected to a flexible extensible cord  97  and attached to the movable male seat dolly  40  in order to permit the male to vary his longitudinal position with only the requirement of pushing rearward with his feet or hands urging the movement of the dolly. The ability for the female to move through an arc while simultaneously achieving longitudinal movement along with optional up and down motion that is permitted by pedestal  46  enables the female to have greater or lesser penetration of the male sexual organ into her own sexual organ and at the same time, she may move horizontally with the assistance of dolly  40  beneath her seat. Since the male partner is able to experience similar motions, the two are able to join together in a joint rotating action, both counterbalanced as they move together in a coordinated stroking action. These actions do not have to be performed simultaneously, although it is possible to do so. Thus, the machine is capable of allowing for enormous controlled movement of a couple engaged in the marital act. U.S. Pat. No. 5,385,154 to the same inventors is also included and provides for a two seat assembly that allows for a variety of motions, essentially in a horizontal plane, while the couple is engaged in sexual intercourse. 
         [0013]    U.S. Pat. No. 6,902,525 describes a stimulation device that provides both rotary and reciprocating motion, but is not intended for use by couples mutually engaged in the sexual act. 
         [0014]    The invention of this device will finally allow both man and woman to experience a new method of having sex in an efficient and comfortable way. Thus, it is the hope of the inventors, that with the introduction of this new device, every couple will have a renewed interest in intimacy resulting in an improved relationship. It is also the inventor&#39;s hope to restore the fun and excitement derived from sex to couples who have been married for many years. 
         [0015]    Before we ask what kind of a device this is, we must first ask, what new method this device promises the couple to achieve. As mentioned earlier, the only known method of intercourse mankind has performed consistently and comfortably is the act of the male organ going in and out of the female organ. Whatever position we have come to know or even practice still goes back to this basic act of reciprocating motion of the male organ inside the female organ. A totally different method that has never been used involves rotation of the female organ around the male organ once it has penetrated the female organ thus providing rotating friction instead of reciprocating friction. 
         [0016]    An article of a very popular sex therapist concluded that the most erotic, exciting and stimulating sex position is one wherein the male partner will turn around in circles while his organ is inside the female partner. This act is different in that instead of the female partner rotating, it is the male partner who is turning around in circles. This imitates the effect of a very popular dildo that spins like a drill as it vibrates. The only problem with this position is that due to its awkwardness, it is very difficult for the male and female to perform this act continuously and even repeatedly. While this may arguably be the most difficult position without the aid of a device, the experience can be very rewarding according to the popular sex therapist. 
         [0017]    What is needed is a device that will allow the couple to perform a rotational sex, although in a reversed role, efficiently and comfortably even if the couple is not athletic. This will be revolutionary for mankind. This is because the couple will experience a totally different sensation, one that will permit the male organ to explore the female organ in a totally different way. Since the pattern of movement is now different from what we have been used to, the experience will now be different as well. The inside of the female organ will now be explored in a way that has never been done before. The male organ will now be able to explore in a variety of ways, as the device will now permit the male organ to move in various directions thus experiencing new paths and new levels of friction. For the female partner, a testament to the ultimate pleasure it brings is the popularity of the vibrator that imitates a spinning male organ. Instead of simply moving in and out, this vibrator rotates continuously like a drill thus providing a fully stimulating sensation to the female user. 
         [0018]    Thus, with this new invention, the female will now experience the same sensation, but this time, not from a drill-like vibrator but from her own partner. With the aid of this invention, man and woman will now be able to perform such method of intercourse comfortably, efficiently and most of all, in a very enjoyable and exciting fashion. This is because the device will not only allow the couple to perform a very stimulating new method of intercourse but it will provide the same fun, excitement and thrill that we derive only from the thrill rides experienced in many of those amusement parks we&#39;ve been to. This is because the invention requires the female partner to ride inside the device and the movement of the device will be controlled both by the male and female partner for mutual enjoyment. 
         [0019]    Development of a device which will permit rotational sex represents a great improvement in the field of sexual aids and satisfies a long felt need of couples desiring a new way to experience intimacy. 
       SUMMARY OF THE INVENTION 
       [0020]    The present invention is an apparatus for use in performing intercourse. It includes: a horizontal support designed to support a female in the supine position; a bearing assembly attached to the outside of the horizontal support; and a base horizontally slidably attached to the bottom of the bearing assembly. The bearing assembly is designed to permit rotation of the horizontal support about the axis of rotation of the bearing assembly. The horizontal support and bearing assembly are designed so that this axis of rotation is coaxial with the longitudinal axis of the sex organ of the female when she is supported on the horizontal support in the supine position. The heights of the horizontal support and base are adjustable. Thus the height of the female&#39;s sex organ can be adjusted for penetration by a male partner&#39;s sex organ when the male partner is standing at the correct end of the horizontal support. 
         [0021]    This invention is also a method of performing intercourse comprising the steps of: 
         [0022]    providing a horizontal support designed to support a female in the supine position; 
         [0023]    providing a bearing assembly designed to permit rotation of the horizontal support about the axis of rotation of the bearing assembly; 
         [0024]    attaching the bearing assembly to the outside of the horizontal support; 
         [0025]    providing a base; and slidably attaching the base to the bottom of the bearing assembly. 
         [0026]    The horizontal support and bearing assembly are designed so that the axis of rotation is coaxial with the longitudinal axis of the sex organ of the female when she is supported on the horizontal support in the supine position. The heights of the base and the horizontal support are adjustable. Thus the height of the female&#39;s sex organ can be adjusted for penetration by a male partner&#39;s sex organ when the male partner is standing at the proper end of the horizontal support. 
         [0027]    Thus, during intercourse, the female partner can be rotated, moved backwards and forwards, or rotated and moved backwards and forwards (twirled). 
         [0028]    Preferably, the horizontal support includes one or more cushions, which may be removable. Preferably the bearing assembly is also openable. The apparatus may further include a video camera and a light, which are attached to the bearing assembly. 
         [0029]    The apparatus may include a wheel attached to the bearing assembly which can be manually rotated by the male partner. In this way the male partner can manually rotate the bearing assembly. 
         [0030]    The apparatus may further include two handles attached to the bearing assembly for gripping by the hands of the female partner. The apparatus may further include two foot rests attached to the bearing assembly. The foot rests are designed and positioned to support the legs of the female partner. 
         [0031]    There may also be a cover attached to the end of the bearing assembly, which covers at least a portion of the horizontal support. 
         [0032]    The apparatus may further include a brake assembly positioned to slow and stop rotation of the bearing assembly. The brake lever is positioned for manual operation by the female. 
         [0033]    The apparatus may further include a harness positioned to secure the female partner to the horizontal support. 
         [0034]    The apparatus may further include a lock to limit rotation of the bearing assembly and another lock to limit sliding of the bearing assembly in relation to the base. 
         [0035]    Preferably the horizontal support is removable from the bearing assembly and the entire apparatus is foldable. 
         [0036]    The apparatus may further have a fully motorized version. The movements of the device, including rotational and back and forth sliding movement will be fully automated and motorized with the movement having a pre-set speed, direction or a combination of both. It can be remotely controlled using a wireless remote control or a wired remote control. 
         [0037]    The apparatus may further have frame covers made of leather or similar fabrics, designed not only to enhance the apparatus aesthetically but also to provide a cozy feeling for the user. This frame cover can also have pouches to store the restraint system for the rider and also to store the accessories that may come with the device. 
         [0038]    The apparatus may further have a vertical version wherein the rider is in a seating position as opposed to lying in a supine position. The driver or male partner will, in this version, be the one who will be in a supine position. This version allows usage of said device over a bed or any support surface that will support the male partner in a supine position. In this version the ring mechanism will be confined on the top portion and the female rider will now be supported mostly on the lower part of her body, from the legs to the buttocks. This version will have two types of stands to support the device. One type will have the device supported by two stands placed on each side of the rotating device. The other type will have just one stand with an overhang to which the rotating device will be attached to. 
         [0039]    An appreciation of the other aims and objectives of the present invention and an understanding of it may be achieved by referring to the accompanying drawings and description of a preferred embodiment. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0040]      FIG. 1  is a perspective view of this invention. 
           [0041]      FIG. 2  is a side elevational view of this invention showing how it is used. 
           [0042]      FIG. 3  is a front elevational view of this invention showing how the female partner fits in the invention. 
           [0043]      FIG. 4  is a front elevational view of this invention illustrating its clockwise rotation. 
           [0044]      FIG. 5  is a front elevational view of this invention illustrating its counter-clockwise rotation. 
           [0045]      FIG. 6  is a front elevational view showing how the rings can open for ingress and egress of the female partner. 
           [0046]      FIG. 7  is a side elevational view showing how the bed can move backwards and forwards on the base. 
           [0047]      FIG. 8  is a side elevational view showing attachment of accessories. 
           [0048]      FIG. 9  is a perspective view illustrating mechanization of the invention. 
           [0049]      FIG. 10  is a perspective view illustrating the optional cover for the invention. 
           [0050]      FIG. 11  is a detail showing construction of the preferred rings of this invention. 
           [0051]      FIG. 12  is a detail showing attachment of a hand brake. 
           [0052]      FIG. 13  is a detail showing attachment of the brake caliper. 
           [0053]      FIG. 14  is a perspective view showing addition of a height adjustment knob to this invention. 
           [0054]      FIG. 15  is a side view of the height adjustment mechanism at its lowest point. 
           [0055]      FIG. 16  is a side view of the height adjustment mechanism at a point above its lowest adjustment. 
           [0056]      FIG. 17  illustrates a collapsible embodiment of this invention. 
           [0057]      FIG. 18  shows the collapsible embodiment, partially collapsed. 
           [0058]      FIG. 19  show a sectional view of an alternate ring construction for this invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0059]    While the present invention is described herein with reference to illustrative embodiments for particular applications, it should be understood that the invention is not limited thereto. Those having ordinary skill in the art and access to the teachings provided herein will recognize additional modifications, applications, and embodiments within the scope thereof and additional fields in which the present invention would be of significant utility. 
         [0060]    To completely understand the device and how it works, we must always keep in mind its main function: that is to assist the couple in achieving a certain position of intercourse. That position is the ability of the female organ to rotate continuously and to reciprocate, once the male organ has penetrated the female organ. The design of the device allows the female partner to lie down on her back and then support her legs while they are crossed, preferably just above the ankle. The female partner will be secured by a seat belt or any type of restraint including a corset design which enhances further the female rider&#39;s looks while supporting her whole body. Her legs may also be supported by a cover in the shape of a capsule or a leg rest in the form of a pouch or ankle support to maintain the cross-legs posture during usage and her arms will be supported by a pair of handle bars or a continuous bar designed for gripping by the rider. Once the female partner is secured inside the device, the male partner, after penetration, will now be able to rotate the female partner in either direction, either in a continuous circling motion, or just sideways from left to right or vice-versa. The device will also allow the rotating female partner to move back and forth to achieve a pumping while twirling movement. 
         [0061]    Consequently, this device will now allow various positions to be performed including various combinations. One example is where the male partner positions the female partner upside down and thus enters her from behind. In addition, with the aid of this invention, the male partner now can rotate the female partner from left to right while moving her back and forth at the same time. The male partner can now also penetrate and pump the female partner while she is on her side. 
         [0062]    Referring to  FIGS. 1 ,  2  and  3 , this invention  10  includes a semi-cylinder  14  and a base  18 , which is preferably collapsible. 
         [0063]    One or more cushions  20   a ,  20   b ,  20   c  are positioned inside the semi-cylinder  14 . Preferably the cushions are molded into a shape matching the female&#39;s body shape while in a semi-fetal position, with the legs  26  partly crossed, preferably about one to two inches just above the ankle  28 . This position is the most convenient and most effective position for deepest penetration while keeping the female&#39;s legs  26  from hitting the male partner  30 . 
         [0064]    The cushion that supports the head  20   c , may be detachable by means of, for example, hook and loop fastener  24 . An adjustable harness  32  may be provided to keep the female  16  secured in place. This is necessary because of the rotational capability of the invention  10 . The harness  32  will preferably go over the female&#39;s shoulders and waist. It may be tightened with buckles  36  snap fasteners  44  or the like. 
         [0065]    The semi-cylinder  14  is made of a rigid material with sufficient strength to support the weight of the female  16  as well as to withstand the rotating motion and the back and forth motion of the semi-cylinder  14  during intercourse. The rigid material can be any hard plastic, any metal sheet, a metal framed in hard rubber, fiberglass, wood, Kevlar®, or any combination of these materials. The tops  21   a ,  21   b ,  21   c  of the cushions  20   a ,  20   b ,  20   c  function as the horizontal support of this invention  10 . 
         [0066]    The semi-cylinder  14  is attached to at least a rear ring assembly  22   a  and a front ring assembly  22   b  which circle the semi-cylinder  14 . These function as a bearing assembly for the invention  10 . The preferred basic structure of the rings  22   a ,  22   b  is shown in  FIGS. 11 ,  12  and  13 . Each ring  22   a ,  22   b  comprises an inner ring  34 , an outer ring  38  and a set of roller bearings  42  so they can rotate easily in relation to each other. The inner ring  34  is rectangular in cross section and the roller bearings  42  are set in it. The outer ring  38  has the cross section of a rectangular tube and wraps almost around the inner ring  34  leaving a slot  46 . In this way the outer ring  38  protects the female partner  16  from touching moving parts and allows either partner  16 ,  30  to hold the ring  22   a ,  22   b  during operation. 
         [0067]    The inner ring  34  of each ring assembly  22   a ,  22   b  is attached to the base  18  with a vertical metal plate  50  through the slot  46  in the outer ring  38 . Because of the construction of the ring assemblies  22   a ,  22   b , the outer rings  38 , the attached semi-cylinder  14  and cushion  20  can rotate as shown in  FIGS. 4 and 5 . A lock  48  may be provided to prevent or limit motion if desired. 
         [0068]    The tops of the cushions (horizontal support)  21   a ,  21   b ,  21   c  and rings (bearing assembly)  22   a ,  22   b  are designed and assembled so that the axis of rotation  12  is coaxial with the longitudinal axis of the sex organ of the female  16  when she is supported on the horizontal support in the supine position, as shown in  FIGS. 2 ,  3 ,  4  and  5 . 
         [0069]    The plates  50  are attached to a slide  52  which fits into a channel  56  cut into the top  60  of the base  18 . In this way the ring assemblies  22   a ,  22   b , semi-cylinder, cushions  20   a ,  22   b ,  22   c , and female  16  can slide backwards and forwards as shown by the arrow on  FIG. 7 . Preferably the back and forth motion is limited to between 2 to 10 inches. Also a lock  52  may be provided so that back and forth motion can be disabled. 
         [0070]    There may be handles  54 , attached to the inner surface  58  of the rear ring assembly  22   a . The female partner  16  may grab these handles  54  during operation of the invention  10 . There also may be foot rests  62  on the inner surface  58  of the front ring assembly  22   b . The female partner  16  may rest her feet on these rests  62  during operation of the invention  10 . The foot rests  62  mainly serve as an additional protection to avoid the female partner&#39;s legs  26  from accidentally hitting the male partner  30  and they also provide added comfort. 
         [0071]    The ring assemblies  22   a ,  22   b  may be provided with hinges  82  and latches  86   a ,  86   b  so that the ring assemblies  22   a ,  22   b  can be opened for easy egress and ingress as shown on  FIG. 6 . 
         [0072]    The invention  10  may include a wheel  66 , attached to the front  70  of the front ring assembly  22   b . The male partner  30  may manually turn the wheel  66  during operation of the invention  10 . In this way the outer rings  38  the attached semi-cylinder  14 , the cushion  20  and the female partner can be rotated as desired by the male partner  30 . 
         [0073]    The invention  10  may be accessorized with a variety of accessories such as a video camera  74  and a light  78  as shown on  FIG. 8 . Additionally, a front cover  90  may be provided for detachable attachment to the front of the invention  10 . 
         [0074]    The invention  10  may also be motorized. As shown in  FIG. 9 , to motorize it the front surface  70  of one of the rings  38  will be provided with gear teeth  94 . Then an electric motor  98  with a matching gear  102  is mounted for co-operation with the teeth  94 . Controls (not illustrated) will be mounted for operation by the male partner  30 . 
         [0075]    In addition there may be a brake for the invention. As shown in  FIGS. 12 and 13  installation and operation will be similar to a caliper brake for bicycle. The brake handle  106  will be attached to one of the handles  54 . The caliper  110  will be attached to the outer ring  38  and openings  114  will be provided through the outer ring  38  so that the pads  118  can apply braking force to the inner ring  34 . 
         [0076]    There will be a total of three motions available for this apparatus  10 . These are a rotating motion, a back and forth motion and a twirling motion in which the semi-cylinder rotates as it is pushed and pulled by the male partner. 
         [0077]    The main component, i.e. the semi-cylinder  14 , and cushions  20   a ,  20   b ,  20   c  of this invention  10  can rotate through any desired angle. Preferably, during a 360 degree rotation, the legs  26  of the female  16  should be fully supported by a capsule-like encasement  90  as shown in  FIG. 10 . The purpose of this feature is for the comfort of the female and to avoid the accidental collision of the legs  26  with the male partner  30 , especially when the female partner  16  is in an upside-down position. 
         [0078]    The distance between the main component and the top  60  of the base  18  should be approximately 4 inches. The base  18  is preferably collapsible for portability. Preferably the height of the base should be adjustable so that the invention  10  can accommodate a male  30  of any height. 
         [0079]    Preferably, the height of the invention is adjustable. Coarse height adjustment may be provided by adjustable legs  120 , as illustrated on  FIG. 17 . A simple expedient is to provide inner  124  and outer  122  telescoping portions with a series of through holes  126 . The positions of the portions  122 ,  124  are fixed by sliding a pin  128  through a set of aligned holes  126 . Other height adjustment mechanisms, including screws, and motorized mechanisms are conceivable and could be employed. 
         [0080]    Fine height adjustment may be provided by a scissors mechanism as shown in  FIGS. 14 ,  15  and  16 . A threaded rod  130  is supported horizontally and connected to a knob  132 . There is a threaded traveler  132  on the threaded rod,  130  and a lifting member  136  is pivotally connected between the traveler  132  and a fixed point on the top surface  140 . As the threaded rod  130  is turned in the proper direction by the knob  132 , the threaded traveler  134  moves inwards as shown by the arrow on  FIG. 16 , the lifting member  136  moves upwards, as shown by the arrow on  FIG. 16  and the top surface  140  raises up. Turning the knob  132  in the opposite direction will reverse everything and the top surface  140  will lower. Sway bars  142  sliding in matching bores  144  may be necessary to keep the top surface  140  level and even as it raises and lowers. Other height adjustment mechanisms, including vertical screws and motorized mechanisms are conceivable and could be employed. 
         [0081]      FIGS. 17 and 18  illustrate how the invention  10  is collapsible. The invention  10  is preferably separable into two subassemblies  10   a ,  10   b . The bed subassembly  10   a  includes the semi-cylinder  14 , cushions  20   a ,  20   b ,  20   c  and harness  32 . The base subassembly  10   b  includes the rings  22   a ,  22   b , which are foldable, and base  18 . The base  18  comprises the top  60  and legs  120 , which are foldable. After the bed subassembly  10   a  is removed from the base subassembly  10   b , the rings  22   a ,  22   b  are folded in the directions shown by the arrows on  FIG. 17 . Then the legs  120  are folded in the directions shown by the arrows on  FIG. 18 . Those familiar with the art to which this invention pertains will understand that many alternative means for folding this invention  10  are conceivable and could be utilized. 
         [0082]      FIG. 19  illustrates an alternate basic structure of the rings  22   a ,  22   b . Each ring  22   a ,  22   b  comprises an inner ring  34   a , an outer ring  38   a  and a set of roller bearings  42 . The inner ring  34   a  has a circular cross section. The outer ring  38   a  has the cross section of a circular tube and wraps almost around the inner ring  34   a  leaving a slot  46 . The roller bearings  42  are set in the outer ring  38   a . The inner ring  34   a  of each ring assembly  22   a ,  22   b  is attached to the base  18  with a vertical metal plate  50  through the slot  46   a  in the outer ring  38   a.    
         [0083]    The following reference numerals are used on  FIGS. 1 through 19 :
         10  rotating sex machine of this invention     10   a  bed subassembly     10   b  base subassembly     12  axis of rotation     14  semi-cylinder     16  female partner     18  base     20   a  front cushion     20   b  middle cushion     20   c  rear or head cushion     22  ring assembly     22   a  rear ring assembly     22   b  front ring assembly     24  hook and loop fastener     26  female&#39;s legs     28  female&#39;s ankles     30  male partner     32  harness for female partner     34  rectangular inner ring     34   a  circular inner ring     36  harness buckle     38  rectangular outer ring     38   a  circular outer ring     42  roller bearing     44  adjustable snap closure     46  slot in outer ring     48  ring lock     50  vertical metal plate     52  lock     54  handle     58  inner surface of ring assembly     60  top of base     62  foot rest     66  wheel     70  front of front ring assembly     74  video camera     78  light     82  ring hinge     86  ring latch     90  front cover     94  gear teeth     98  electric motor     102  gear     106  brake handle     110  caliper     114  brake pad openings in outer ring     118  brake pads     120  adjustable legs     122  outer leg     124  inner leg     126  through hole     130  threaded rod     132  adjustment knob     134  threaded traveler     136  lifting member     138  fixed point     140  top, moveable surface       
 
         [0141]    Thus, the present invention  10  has been described herein with reference to particular embodiments for particular applications. Those having ordinary skill in the art and access to the present teachings will recognize additional modifications, applications and embodiments within the scope thereof. 
         [0142]    It is therefore intended by the appended claims to cover any and all such applications, modifications and embodiments within the scope of the present invention.