The mannequins of human bodies are commonly shown with or without head, without articulated limbs and with assembly mechanisms that only fulfill the function of keeping its members together, so that it is necessary to disassemble at least one of its members to dress and undress the mannequins, such as: the arms or legs, complicating the task when reassembling those members, which is a waste of time, besides running the risk of an incorrect assembly that may cause breaking and / or malfunction of such assembly mechanisms.
One of the disadvantages of the articulated mannequins mentioned above, is that their locking mechanisms are not firmly inserted between the material of its members, which are usually superimposed, assembled or bolted into the members, so that over of time and use, these locking mechanisms tend to loosen, causing a malfunction.
Other
disadvantage of the above mentioned articulated mannequins, is that their locking mechanisms only have the function of keeping its members assembled with little locking force, which causes that with only its own weight or with some vibration, said members move from their assigned position.
Another disadvantages of the articulated mannequins aforementioned, are that: their assembly mechanisms cannot achieve that: its members automatically return to an assigned position after they have been moved; that they can be assembled around a dividing sheet; that they can perform automated movements; that they can make movements without resistance by interacting with other moving objects, or that their assembly mechanisms may have an embodiment in which they can be disassembled in order to give them maintenance, replace them or replace them with other assembly mechanism.
Another
disadvantage with most of the aforementioned articulated mannequins, is that the anatomical shape of the junction points where their locking mechanisms are located, don't have a realistic human appearance, since to ensure that those members can move, the joints are designed with very rough shapes and unsightly, looking as if they were deformed.
Another
disadvantage with the aforementioned articulated mannequins, is that in sections where their locking mechanisms are located, are commonly observed screws, nuts and / or parts of any component of the
locking mechanism which joins the members, providing them with an unrealistic appearance, with many piercings and / or external cavities, which are not very pleasing to the eye.
In some inventions of articulated mannequins, they can only be adjusted the position of certain members of his body, wherein it is only possible to adjust the position of the head, arms, forearms, legs or calves; taking very limited and unrealistic postures, so that they do not give to the viewers the feeling that these articulated mannequins adopt natural postures, as would a
human being.
It is worth mentioning that flexible mannequins of human bodies can adopt various positions, with the disadvantage that its cover normally comprises one piece, so that when the members are flexed, there are formed folds on the cover, which causes the flexible mannequin to look unrealistic and these folds tear the cover over time, causing the flexible mannequin to look deformed, anatomically disproportionate and unpleasant to the view.
Another disadvantage is that usually, the external appearance of said flexible mannequins lacks details of both features of the face, and of the defined lines of the
human body, since they have a spongy and unnatural appearance.