Patent Publication Number: US-6904629-B2

Title: Bed with function of ventilation

Description:
FIELD OF THE INVENTION 
   The present invention relates to bed structures, and particularly to a bed with function of ventilation. 
   BACKGROUND OF THE INVENTION 
   Referring to  FIG. 1 , a bed disclosed in Japan Laid-Open No. 6820-3B is illustrated. In this prior art, a soft pad  31  is installed between the springs  20  of the bed cushion  10 . The upper and lower sides of the spring  20  are installed with an upper soft pad  32  and a lower soft pad  33 , respectively. The spring  20  has an upper ring  21  and a lower ring  22 . The upper ring  21  and lower ring  22  clamp the pad  31  so that adjacent springs  20  are spaced by a pad  31 . The upper pad  32  and lower pad  33  are installed to clamp the upper and lower surfaces of the spring  20 . An elastic pad  40  is installed on the upper pad  32 . The elastic pad  40  is formed by a plurality of small pads  41 . In assembly the elastic pad  40 , two sheets of pads  32  are enclosed by two pieces of cloths  42  at two sides and the cloths are seamed to form a plurality of small pads  41 , as shown in FIG.  1 . 
   By above mentioned components, when the bed cushion  10  is pressed, since gravitation force is buffered by soft pad  31 , the pressure applied upon the spring is reduced. By the soft pad  31  between the springs  20 , the springs  20  are isolated effectively so that when a force is applied to the spring, it will not be pulled away. Thus the bed will not collapse. 
   Although this prior art has improved some defects in prior art designs by using the pad structure, the interactions between the springs  20  are still strong. Thereby, the actions of one user lying on the bed will greatly affect another people lying aside the user. 
   Therefore, there is an eager demand for a novel design which can improve the defects in the prior art, in that the response in one action will not affect other sections far away from the section with a force applied thereon. 
   SUMMARY OF THE INVENTION 
   Accordingly, the primary object of the present invention is to provide a bed with a bed cushion having a bed cushion surface integrally formed by emulsion. The emulsion bed cushion surface has a plurality of wind trenches. Each wind trench has a plurality of vents for venting air. By the wind trenches, the bed cushion surface is divided into a plurality of small bed cushion surfaces. Thus, the bed cushion surface is elastic. One lateral side of the bed cushion has a through hole. A periphery of the through hole is a soft protrusion. A head portion of a bed is formed with an enclosing trench with a configuration with respect to the protrusion. A via hole is formed in the enclosing trench. A fan is installed within the hole. The enclosing trench is tightly engaged to the protrusion so that the wind out of the fan flows into the bed cushion from the through hole. Then the wind is vented out of the bed cushion surface from the vents. 
   The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  shows an exploded view of a prior art bed cushion. 
       FIG. 2  is an exploded perspective view of the present invention. 
       FIG. 3  is an assembled cross sectional view of the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Referring to  FIGS. 2 and 3 , the exploded perspective view and the assembled cross sectional view of the present invention are illustrated. The present invention relates to a bed cushion surface  100  integrally formed by emulsion for replacing the conventional bed cushion surface made of conventional coconut fiber. 
   A surface of the emulsion bed cushion surface has a plurality of wind trenches  101 . These wind trenches  101  can be arranged alternatively or non-alternatively. Each wind trench  101  has a plurality of vents  11  for venting. Moreover, by the wind trenches  101 , the bed cushion surface  100  is divided into a plurality of small bed cushion surfaces. Thus, the bed cushion surface  100  is elastic. Thereby, actions of one user lying on the bed will not affect the action of another user also lying on the bed. 
   One lateral side of the bed cushion  10  has a through hole  14 . A periphery of the through hole  14  is enclosed by a soft protrusion  140 . The head portion  60  of the bed is formed with an enclosing trench  600  with a configuration with respect to the soft protrusion  140 . A via hole cavity  601  formed in the enclosing trench  600 . A fan  30  is installed within the hole  601 . The enclosing trench  600  can be tightly engaged to the protrusion  140  so that the wind out of the fan  30  flows into the bed cushion  10  from the through cavity  14 . Then the wind is vented out of the bed cushion surface  100  from the vents  11 , but in the prior art, the fan  30  is installed to the lateral surface of the bed cushion  10  or a connecting mask is used to connect the fan  30 . 
   In above structure, the front and rear sides of the fan  30  and the vents of the lateral sides of the bed cushion  10  can be formed with safety nets  300 ,  301 , and  141  so as to increase the safety of the device. 
   Thereby, from above structure, it is known that the present invention has the following advantages:
         (3) By the wind trenches  101 , the bed cushion  10  has a preferred ventilating effect. Moreover, by the vents, the bed cushion surface  100  is divided into a plurality of small bed cushion surfaces. Thus, the bed cushion surface  100  is elastic. Thereby, actions of one user lying on the bed will not affect the action of another user also lying on the bed.   (4) The bed cushion  10  has a through hole  14 . A periphery of the bed cushion is a soft protrusion  140 . The head portion  60  of the bed is formed with an enclosing trench  600  with a configuration with respect to the protrusion  140 . A via hole  601  is formed in the enclosing trench  600 . A fan is installed within the hole  601 . The enclosing trench  600  can be tightly engaged to the protrusion  140  so that the wind out of the fan  30  flows into the bed cushion  10  from the through hole  14 . Thereby, the bed cushion  10  is comfortable and cool. Moreover, the bed cushion  10  has a beautiful look.       

   The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.