Abstract:
A portable and foldable chamber excretion pot having a seat folder mechanism can be developed for use and foldable after being finished using it, especially suitable for carrying in a car. An elaborately designed seat folder mechanism can make a plurality of sustainers stand up or lie down and form a sloped surface when they are standing up so as to settle the pot horizontally on the car seat thereby enabling the user to comfortably and stably sit thereon.

Description:
BACKGROUND OF THE INVENTION 
     (1) Field of the Invention 
     The present invention relates to a portable and foldable chamber excretion pot, and more particularly, a chamber excretion pot having a seat folding mechanism, which can be developed for use and foldable after being finished using it, especially suitable for carrying in a car. 
     (2) Description of the Prior Art 
     The most embarrassing matter for people who are driving his/her car along a rural road or on a freeway where no establishment of washrooms for public use can be found when he/she suddenly feels like unbearably excretory. Although a conventional excretion bag may be used to release the embarrassment, such a bag has no supporting means so that the user is forced to crouch over it for a long time, and in the worst case, polluting the surroundings with excretion. 
     There is a portable chamber excretion pot utilizing an upper half structure of a conventional closes tool. However, it is not foldable and it is bulky as well. As a result, it is impossible to put aside under the car seat. Besides, the user has to put up with the danger of beating his/her head against the car roof when crouching over the chamber pot in a limited height of the car. 
     SUMMARY OF THE INVENTION 
     The present invention has been made in order to eliminate the inconvenience inherent to the conventional techniques as mentioned above. Accordingly, it is an object of the present invention to provide a portable and foldable chamber excretion pot whose volume can be decreased when folded to save occupied spacing for the convenience of putting aside under a car seat. 
     It is another object of the present invention to provide a portable and foldable chamber excretion pot whose folder mechanism can be settled horizontally for the user to stably and comfortably sit thereon. 
     It is still another object of the present invention to provide a portable and foldable chamber excretion pot whose lid stands behind his/her hip so as to prevent the excrement from spattering here and there in the car. 
     To achieve these and other objects, the portable and foldable chamber excretion pot comprises an developable/foldable pot assembly with an excretion inlet thereon, a seat folder mechanism able to make a plurality of sustainers stand up or lie down on the pot assembly, a sloped surface is formed when the sustainers are standing up so as to settle the pot horizontally on the car seat thereby enabling the user to comfortable and stably sit thereon, and an excretion bag is disposed in the pot assembly under the seat pad for accepting the excrement. After excretion is finished, the bag is taken out together with its contents by hermetically sealing the bag opening. By folding the seat folder mechanism, the volume of the pot assembly is minimized and can be put away under the car seat. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     For fully understanding the nature and objects of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings in which: 
     FIG. 1 is a three dimensional exploded view of the present invention; 
     FIG. 2A is a fragmentary enlarged cross sectional view showing the clamping structure of the present invention; 
     FIG. 2B is a fragmentary enlarged cross sectional view showing the supporter of the present invention; 
     FIG. 2C is a fragmentary enlarged cross sectional view showing the mutual relationship among other components with respect to the clamping arm of the present invention; 
     FIG. 2D is a fragmentary enlarged cross sectional view showing that the claw and the claw stop of the present invention in engagement with each other. 
     FIG. 3 is a three dimensional view of the seat pad of the present invention; 
     FIG.  4  and FIG. 5 are two plan views of the sustainer of the present invention; 
     FIGS. 6A through 6D are the drawing sequentially illustrating steps of operating the chamber excretion pot of the present invention from its folded state to its developed state ready for use; and 
     FIG. 7 is a side view of the present invention put on a car seat ready for use. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     As shown in FIG. 1, the portable and foldable chamber excretion pot  10  of the present invention comprises a pot assembly  20 , a seat folder mechanism  30  installed therein, and an excretion bag  40  provided under the seat folder mechanism  30  (refer to FIG.  6 D). The seat folder mechanism  30  further includes a seat pad  31 , one or more sustainers  32 A,  32 B, and a plurality of revolving members  33  arranged along the front edge  36 D of the seat pad  31  with equal spacing. 
     A pot body  21  conjoined with a lid  22  constitutes the post assembly  20 . The pot body  21  has a container  23  inside with at least one clamp  25  provided on each of three edge walls  24 A,  24 B, and  24 C. As shown in FIG. 2A, a breach  26  is formed above each clamp  25  for accepting the bottom portion of the sustainers  32 A,  32 B so as to maintain them in a standing state. 
     A plurality of supports  27  are formed along another edge wall  24 D of the container  23  with equal spacing each with an opening slot  28  thereon for entraining the revolving members  33  (refer to FIG.  2 B). A clamping arm  29  is formed at the inner side of each supporter  27  near the edge wall  24 A,  24 B (refer to FIG.  2 C). Each clamping arm  29  has a flange  211  at its upper end for pivoting to a clamp member  39  of the seat pad  31 . The two-clamp members  39  are mounted on the both edge walls  36 A,  36 B at the outer side near the two end revolving members  33 . 
     There is at least one hook  212  formed at an edge of the lid  22 , a claw  213  is formed at the lower portion of the hook  212  for engaging to a claw stop  214  (FIG. 2D) so that the pot body  21  and the lid  22  are fitted with each other to form a closed state. The claw stop  214  is formed on the other outer surface of the edge wall  24 d of the pot body  21  for the user to grasp thereat by hand when carrying the pot. 
     Referring to FIG. 1 together with FIG. 3, under the seat pad  31 , there is an excretion inlet  34  communicating with the container  23 . A plurality of reinforced ribs  35  formed in a trellis are formed at the bottom of the seat pad  31 . Seat pad  31  is formed into four edge walls  36 A,  36 B,  36 C and  36 D. A plurality of brackets  37  disposed with equal spacing along the edge walls  36 A,  36 B,  36 C, are for entraining the sustainers  32 A,  32 B thereon. A stop block  38  is provided for each end bracket  37  at the outer side thereof. Referring now to FIGS. 4 and 5, at both ends of the sustainers  32 A,  32 B, there is a pivot axis  311  provided for each sustainers  32 A,  32 B for pivoting with the stop blocks  38  so that the sustainers  32 A,  32 B are rotatable with respect to pivot axis  311 . An open slot  312  provided for each sustainer  32 A,  32 B forms an allowable space for facilitating the joining of the pivot axis  311  and the stop block  38 . 
     In order to provide a sloped surface when the seat folder mechanism  30  is developed, a tapered portion  313  is formed at the bottom of the sustainers  32 A, when the tapered portion  313  is mounted on the breach  26 , the seat pad  31  will be formed into a sloped surface whereas the sustainers  32 A,  32 B can lie horizontally or stand vertically beneath the seat pad  31 . When the sustainers  32 A,  32 B are at vertical position, their bottom portions are fitted in the breaches  26 . 
     Referring to FIG. 1 and 3 further, the revolving member  33  is an arcuate article having a stopper  314  facing against it for limiting maximum open angle of the seat folder mechanism  30 . The maximum open angle is defined approximately to 20 degrees enough for the sustainers  32 A,  32 B to be fitted in their individual breaches  26 . 
     A hook  315  is provided for each of the edge walls  36 A,  36 B, and  36 C for hooking on periphery of a bag opening  41  of the bag  40  so as to prevent the bag  40  from slipping down. 
     FIGS. 6A through 6D are the drawings, which sequentially illustrate steps of operating the chamber excretion pot of the present invention from its folded state to its developed state ready for use. At first, pulling outward the hook  212  and moving the lid  22  upward; second, pulling up the rear part of the seat folder mechanism  30 , and turning the sustainers  32 A,  32 B to the vertical position and fitting in individual breaches  26  therefore completing development of the chamber pot by forming a sloped surface thereon; third, the bag  40  from the excretion inlet  34  into the container  23 ; and finally, hooking the periphery of the bag opening  41  on the hooks  315  for preventing the bag  40  from slipping down, then the chamber pot is ready for use. After finishing the excretion, the bag opening  41  is hermetically sealed for discarding. 
     When folding the chamber excretion pot, by pulling up the rear part of the seat pad  31  so as to release the sustainers  32 A,  32 B from detention of the breaches  26 ; turning the sustainers  32 A,  32 B to lie down horizontally so that they are flat with the seat pad  31 ; and push down the hooks  212  to engage the claw  213  to the claw stop  214  thereby completing the folding operation. After folding, the volume of the chamber excretion pot of the present invention is minimized to a degree convenient to put aside in the car. 
     As the seat is made inclined backward for an ordinary car, when the chamber excretion pot  10  of the present invention is set on the car seat, as shown in FIG. 7, its seat pad  31  is almost maintained horizontal so that the user is able to comfortably and stably sit thereon. Besides, the lid  22  is standing exactly behind the user&#39;s hip for preventing the excretion from spattering here and there in the car. 
     The invention disclosed is well calculated to provide the advantages and features above stated, it will be appreciated that the invention is susceptible to modification, variation and change without departing from the proper scope or fair meaning of the subjoined claims.