Abstract:
A breathing mattress for bed includes a mattress body, which is prepared from a foam material and has a plurality of mounting holes, and a plurality of hollow elastic filler elements respectively mounted in the mounting holes of the mattress body for ventilation.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to a mattress for bed and more particularly, to a breathing mattress. The invention relates also to the method of making the breathing mattress.  
         [0003]     2. Description of the Related Art  
         [0004]     Latex and foam materials have been intensively used for making mattress for bed. A latex or foam material mattress gives a comfort support to the user when the user is lying on the mattress. However, when the user is lying on a latex or foam material mattress for a certain length of time, the temperature and humility in the contact area between the user&#39;s body and the mattress will become high, causing the user to feel uncomfortable. In order to eliminate this problem, breathing structure may be added to the mattress. However, conventional mattresses having a breathing structure are commonly expensive.  
       SUMMARY OF THE INVENTION  
       [0005]     It is one objective of the present invention to provide a breathing mattress for bed, which provides good ventilation.  
         [0006]     It is another objective of the present invention to provide a breathing mattress, which is easy and inexpensive to manufacture.  
         [0007]     To achieve these objectives of the present invention, the breathing mattress comprises a mattress body, which has a plurality of mounting holes, and a plurality of hollow elastic filler elements that are respectively mounted in the mounting holes for ventilation.  
         [0008]     The present invention also provides a method of making a mattress comprising the steps of a) preparing a mold having a cavity and a plurality of upright pins in said cavity; b) preparing, equal to the number of said upright pins, a plurality of hollow elastic filler elements, and then sleeving said filler elements onto said upright pins respectively; c) filling up said cavity of said mold with a fluid foam material; and d) shape-forming and hardening said foam material so as to obtain the mattress.  
         [0009]     The present invention provides still another method of making a mattress comprising the steps of a) preparing a plurality of hollow elastic filler elements and a mattress body of foam material; b) making a plurality of mounting holes in said mattress body; and c) fastening said filler elements to said mounting holes. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0010]      FIG. 1  is a perspective view of a mattress for bed according to a preferred embodiment of the present invention.  
         [0011]      FIG. 2  is an exploded view of the mattress for bed according to the preferred embodiment of the present invention.  
         [0012]      FIG. 3  illustrates the first step of the manufacturing of the bed for mattress according to the preferred embodiment of the present invention.  
         [0013]      FIG. 4  illustrates the second step of the manufacturing of the bed for mattress according to the preferred embodiment of the present invention.  
         [0014]      FIG. 5  illustrates the third step of the manufacturing of the bed for mattress according to the preferred embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0015]     Referring to  FIGS. 1 and 2 , a breathing mattress  10  in accordance with the preferred embodiment of the present invention is shown comprised of a mattress body  11 , and a plurality of filler elements  20 . The mattress body  11  is made by latex or any of a variety of foam materials, having a top wall  12 , a bottom wall  14 , and a plurality of cylindrical mounting holes  16  extending from the top wall  12  toward the bottom wall  14 . The number of the filler elements  20  is equal to the number of the cylindrical mounting holes  16 . The cylindrical mounting holes  16  are formed in the mattress body  11  over the area on which the user&#39;s body may rest. The filler elements  20  are hollow cylindrical elastic plastic members, having an annular cross section in transverse direction and a corrugated cross section in longitudinal direction. The filler elements  20  are respectively axially press-fitted into the cylindrical mounting holes  16 .  
         [0016]     As shown in  FIGS. 3-5 , the fabrication method of making the aforesaid mattress  10  includes:  
         [0017]     step  1 : preparing a mold  50  having a cavity  52  and a plurality of upright pins  54  in the cavity  52  as shown in  FIG. 3 ;  
         [0018]     step  2 : preparing, equal to the number of the upright pins  54 , a plurality of cylindrical elastic plastic filler elements  20  that have an annular section in transverse direction and a corrugated section in longitudinal direction, and then sleeving the filler elements  20  onto the upright pins  54  respectively as shown in  FIG. 4 ;  
         [0019]     step  3 : filling up the cavity  52  of the mold  50  with a fluid molding material (latex or foam material)  56  and keeping the filler elements  20  peripherally maintained in contact with the fluid molding material  56  as shown in  FIG. 5 ; and  
         [0020]     step  4 : hardening the molding material  56  and then removing the finished product, i.e., the mattress  10  from the mold  50  after form-setting.  
         [0021]     Referring to  FIG. 1  again, when the user lies on the top wall  12  of the body  11 , the elastic material property of the mattress body  11  gives a comfort support to the user&#39;s body, and at the same time, the user&#39;s body is kept in close contact with the top wall  12  of the mattress body  11  and the top side of each filler element  20 , allowing warn and wet air to pass downwardly away from the user&#39;s body into the gaps in the inside of the filler elements  20 .  
         [0022]     As indicated above, the present invention provides a breathing mattress for bet, which gives a comfort support to the user and, which is easy and inexpensive to manufacture.  
         [0023]     Alternatively, the breathing mattress can be made by: preparing a mattress body from latex or foam material and a number of hollow filler elements, and then making a plurality of mounting holes in the top wall of the mattress body through a mechanical processing process, and then fastening the hollow filler elements to the mounting holes in the top wall of the mattress body.