Field tent against crosswind

Abstract

The present invention intended to achieve an outdoor tent of a type having an awning roof at its top and open peripheral sides, in which the roof has lower height to endure a strong gust of crosswind and which can have long depth and thus large floor space. An outdoor tent of a type having an awing roof at its top and open peripheral sides, the awing roof comprises: an awing ( 1 ), which includes left and right upright sides ( 100 ) which are trapezoidal, a zenith ( 100 a ) which is flat, and front and rear faces which are inclined to extend downward apart from each other; trapezoidal frames forming left and right sides for supporting the awing ( 1 ); and four bridge beams which are fixed at both ends thereof to corresponding corners of the trapezoidal frames so as to extend horizontally between the trapezoidal frames.

1 . A crosswind-resistant outdoor tent of a type having an awing roof at its top and open peripheral sides, the awing roof comprising: an awing, which includes left and right upright sides which are trapezoidal, a zenith which is flat, and front and rear faces which are inclined to extend downward apart from each other;trapezoidal frames forming left and right sides for supporting the awing; and four bridge beams which are fixed at both ends thereof to corresponding corners of the trapezoidal frames so as to extend horizontallybetween the trapezoidal frames.  
   
   
       2 . A crosswind-resistant outdoor tent of a typehaving an awing roof at its top and open peripheral sides,the awing roof comprising: an awing, which includes left and right upright sides which are trapezoidal, a zenithwhich is flat, and front and rear faces which areinclined to extend downward apart from each other; trapezoidal frames forming left and right sides for supporting the awing; and four bridge beams which are fixed at both ends thereof to corresponding corners of the trapezoidal frames so as to extend horizontally between the trapezoidal frames, wherein 
 said awing roof is provided with a ventilator comprising one opening or a ventilator comprising a plurality of openings formed adjacent to each other and with one or more sheet lids for covering said ventilator of which an upper edge is fixed to a portion about the center of the zenith of the awing roof by sewing or adhesive bonding and the opposite side edge is connected to portions near the awing edges adjacent to the ventilator by one or more tie-down means capable of exhibiting moderate fixing strength so that said lid is adapted to automatically open when subjected to gust or big wind to prevent the awing from being blown away.    
   
   
       3 . A crosswind-resistant outdoor tent as claimed in  claim 1  or  2 , further including one or more reinforcing members arranged to have a projecting ridge on the zenith in order to prevent rain water from collecting on the flat zenith of the awing having trapezoidal sides.  
   
   
       4 . A crosswind-resistant outdoor tent as claimed in  claim 1  or  2 , further including a convex portion provided in the zenith such that the sides of the zenith are triangle in shape in order to prevent rain water from collecting on the flat zenith of the awing having trapezoidal sides.  
   
   
       5 . A crosswind-resistant outdoor tent as claimed in  claim 1  or  2 , wherein the framework of the awing roof having the trapezoidal sides comprises a frame of the roof zenith which is composed of two or three ridge beams and two side beams both made of metallic pipes, a frame of the roof bottom which is composed of two pole plates and two end plates both made of metallic pipes, and four rafters made of metallic pipes whereby the frame of said roof zenith and the frame of the roof bottom are joined.  
   
   
       6 . A crosswind-resistant outdoor tent as claimed in  claim 1  or  2 , wherein the framework of the awing roof having the trapezoidal sides and the poles supporting the framework of the roof are adapted to be freely assembled or disassembled by assembling mean ssuitable for the respective joints.  
   
   
       7 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the ventilators are formed to have such shape, number, and width that the portions of the awing roof remaining between adjacent openings can retain strength of the awing roof and the ventilators are formed to have such size that the total area of the ventilators allow said lid to open when subjected to gust or big wind.  
   
   
       8 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the sheet lid is subjected to waterproof treatment.  
   
   
       9 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the sheet lid is made of sail cloth the same as that of the awing.  
   
   
       10 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the tie-down means is means allowing a part or parts of the corner edge of the awing adjacent to the ventilator to be free.  
   
   
       11 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the lid on the awing roof is tied down by connecting the both lower ends of the lid via rubber cords.  
   
   
       12 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the lid on the awing roof is tied down by connecting portions near the both lower ends of the ventilator and the both lower ends of the lid via rubber cords passing through and stopped at both ends thereof by rings made of cord, metal, or plastic fixed to the both lower ends of the lid and fixed to portions of the awing around the both lower corner edges of the ventilator.  
   
   
       13 . A crosswind-resistant outdoor tent as claimed in  claim 2 , wherein the left and right side edges of the sheet lid are fixed via expansible waterproof sheets comprising bellows arranged at the left and right ends of the ventilator so as to prevent rain water from entering into the tent through the left and right ends of the ventilator when said lid opens.