Portable treatment table
This is a file-wrapper continuation of application Ser. No. 08/073,885 filed Jun. 9, 1993, abandoned. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The invention relates to folding tables in general, and specifically to portable tables for use in massage or therapeutic body work such as for the chiropractic art. 
     2. Related Art 
     The prior art teaches a wide variety of special purpose folding tables for use in applications such as massage, therapy, chiropractic arts, article display, and beauty treatment as well as folding tables for general purpose use. A sample of these include U.S. Pat. No. 5,009,170 which discloses a brace and cable configuration for a portable table. U.S. Pat. No. 4,927,128, 4,856,497 and 4,333,638 which disclose other tables with varying truss suspension systems. 
     SUMMARY OF THE INVENTION 
     The presently disclosed invention consists of a special purpose table for use in massage or other body work such as the chiropractic arts. The table folds in halve and the legs and support struts are stored within the space between the two halves of the folded sections. When folded the table is easily able to be carried by one person where it is needed. 
     It is an object of the present invention to provide a folding table having a new and unique support structure that overcomes the problems found in prior art tables. 
     It is another object of the present invention to provide a portable table that is light weight, durable, stable when subject to dynamic and static loads and is easy to set up and break down. 
     It is another object of the present invention to provide a portable table that is more comfortable to use in that the therapist is able gain access to the underside of a patient easier and more comfortably than is able to be done with other known tables. 
     It is still another object of the present invention to provide a portable treatment table that is safer in operation because its support joints are less likely to fail and offers greater stability for the supported structure. 
     It is an advantage of the this novel portable table in that there are no offset hinge joints braces, as used in other conventional portable tables. This assures that little or no wear on the joint since the forces applied during use are in the same line and in the same plane. 
     It is still another advantage of the this novel portable table in that it makes use of a high strength stretchable fabric as the table top section this allows the table to be of a lighter weight and at the same time being of high strength. 
     These, together with the various ancillary objects and features of the instant invention which will become apparent as the following description proceeds, are attained by this folding, portable massage table as disclosed herein, preferred embodiments thereof being shown in the accompanying drawings, by way of example only. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of the claimed table shown in an assembled condition ready for receiving a patient for treatment. 
     FIG. 2 is a perspective view of the table shown in FIG. 1 in a partially folded condition. 
     FIG. 3 is a perspective view of a support arm with its first and second section separated. 
     FIG. 4 is a perspective view of a preferred table top section before the cushion pad is applied. 
     DRAWING REFERENCE NUMERALS 
     10--Folding Table 
     20--Top section 
     25--Cushion pad 
     30--Support legs 
     35--First pivot means 
     36--Second pivot means 
     37--Third pivot means 
     40--First cross brace 
     50--First length 
     60--Second length 
     80--Border flange 
     90--Carrying handle 
     101--Flexible nylon material 
     110--Latch 
     115--Latch clasp 
     130--First cable 
     170--Support foot 
     200--Hinge member 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     As shown in FIGS. 1 and 2, portable folding treatment table 10 comprises two rectangular flat top sections 20 each of which contains, on its under surface a peripheral border flange 80 anchored or attached to top sections 20 with glue, nails or angle brackets or the like. Sections 20 are abutted and connected by hinge members 200 attached to the bottom surface of abutting border flanges 81. It will be apparent that these hinge members may be replaced with a single hinge running substantial the length of border flange 81 and together referred to as a hinge member. Sections 20 and border flange sides are covered with cushion pads 25. At the outer end of each section 20 a pair of support legs 30 is attached at the top of the support legs 31 by first pivot means 35. Preferably the support legs 30 are adjustable for height. Each pair of support legs 30 are rigidly connected together by first cross brace 40 or the like. Each section 20 has a pair of support arms or struts 42, each arm comprising a first length or section 50 and a second length or section 60. At the end of the first section 51 the diameter is either smaller or larger in diameter than the top of the second section 61. The section with the larger diameter end or top is sufficiently hallow at the end or top so as to be able to receive the smaller diameter section. This allows the smaller section end or top to be able to be inserted inside of the section with the larger diameter end or top. The difference in circumferences should be such so that the two sections 50 and 60 are capable of overlapping for about 5 inches. This allows the two section 50 and 60 to be joined together or interconnected. When the two sections 50 and 60 are fully engaged it is preferred that there be a uniform diameter along the length if the support arm. It is preferred that first section 50 is made of wood and second section 60 is made of aluminum. Also in the preferred embodiment, end 51 is a male member capable of being received by top 61 a female member. In the preferred embodiment, there is provided a joint means 65 that holds end 51 and top 61 together when the table is folded. It is preferred that the joint means be a cord preferably stretchable or elastic cord sometimes referred to as a &#34;bungy cord&#34;. This cord or joint member 65 is secured to the third pivot means 37 at one end 38, runs inside of second section 60 and the other end 39 is secured to the outside of male end 51. 
     The free end or top of each first length 50 is connected to abutting border flange 81 by second pivot means 36, preferably a plastic ball joint, while the free end or bottom of each second length 60 is connected to support leg 30 by third pivot means 37, preferably a plastic hinge. A pair of flexible, non-stretchable cables 130, are secured between each opposing legs of each leg pair set 30, the cable being of such length to be in tension when said table top sections are coplanar and when said legs are fully unfolded as shown in FIG. 1. The cables 130 are preferably secured to the lower portion of the legs 30. More preferably the cables 130 are secured to the third pivot means 37. 
     In another preferred embodiment, see FIG. 4, the two top Sections 20 comprise a flexible, stretchable fabric preferably a nylon fabric most preferably 500 Deniur® purchased from Gladwyn. By using a fabric in place of the normal metal or plywood the table becomes lighter and more comfortable to use while retaining the strength and durability required for these types of tables. 
     The top sections shown in FIG. 4 are preferably manufactured in the following manner: The border flanges 80, which are preferably hardwood, are secured together. Preferably, a 1/8 inch bow is placed in middle border flanges 82 and 83. This is preferably done by placing a spreader or the like between border flanges 82 and 83. While the spreader is still in place plywood strips 85 are affixed or glued to the upper surface of border flanges 80. The fabric 101 is stretched across the top of the strips 85 and secured in place by stables,glue or the like. The 1/8 bow that was applied to the border flanges 80 is compressed by the tension of the stretched fabric. Cushion pad 25 is then applied to the upper surface of the fabric 101. This novel surface is envisioned to work best when used with the above described struts or support arms but can be of great value when used in other tables requiring lightweight and strength. 
     The above described table can be easily assembled. While on its side, open the table top sections 20 to approximately 150 degrees. Fold out the legs 30 to about 90 degrees of the peripheral border flange 80. Insert the first section end 51 into or over top of second section 61 for all four legs. Open top sections 20 fully and lift into horizontal position. To fold up just reverse the procedure. 
     All references disclosed are hereby incorporated by reference as if written herein. 
     From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention, and without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions. Accordingly the scope of the invention is not to be considered limited to the particular embodiments shown or suggested, but is rather to be determined by reference to the appended claims.