초록 ▼

A lightweight reinforced seat assembly for a transportation vehicle is disclosed which includes a molded seat shell having a shell exterior and a shell interior. The seat shell includes a seat section and a back section joined together by a generally curved section. A plurality of seats is formed in

A lightweight reinforced seat assembly for a transportation vehicle is disclosed which includes a molded seat shell having a shell exterior and a shell interior. The seat shell includes a seat section and a back section joined together by a generally curved section. A plurality of seats is formed in the seat shell. A reinforcing network of longitudinal and lateral, generally enclosed tubular rib elements reinforce the seat shell to eliminate metal framing and weight. The reinforcing rib network includes a front tubular rib element extending laterally across a front width of the seat section, and a top tubular rib element extending laterally across a top width of the back section. Longitudinal edge tubular rib elements extend on opposing edges of the seat shell generally through the seat-section, curved section, and back-section. The edge tubular rib elements are connected to the front and top tubular rib elements. An intermediate tubular rib element extends between adjacent ones of the plurality of seats connected to the front and top tubular rib elements.

대표청구항 ▼

A lightweight reinforced seat assembly for a transportation vehicle is disclosed which includes a molded seat shell having a shell exterior and a shell interior. The seat shell includes a seat section and a back section joined together by a generally curved section. A plurality of seats is formed in

A lightweight reinforced seat assembly for a transportation vehicle is disclosed which includes a molded seat shell having a shell exterior and a shell interior. The seat shell includes a seat section and a back section joined together by a generally curved section. A plurality of seats is formed in the seat shell. A reinforcing network of longitudinal and lateral, generally enclosed tubular rib elements reinforce the seat shell to eliminate metal framing and weight. The reinforcing rib network includes a front tubular rib element extending laterally across a front width of the seat section, and a top tubular rib element extending laterally across a top width of the back section. Longitudinal edge tubular rib elements extend on opposing edges of the seat shell generally through the seat-section, curved section, and back-section. The edge tubular rib elements are connected to the front and top tubular rib elements. An intermediate tubular rib element extends between adjacent ones of the plurality of seats connected to the front and top tubular rib elements. se to rotation of said number of wheels, wherein pressure within said accumulator is increased when fluid is advanced into said accumulator by said pump, further comprising a hose in fluid communication with said accumulator, wherein (i) said hose has a valve mechanism coupled to one end thereof, and (ii) said valve mechanism includes a control lever for selectively actuating said valve mechanism. 7. A pressure sprayer, comprising: an accumulator for storing fluid therein under pressure; at least one wheel which rotates when said pressure sprayer is moved; and a pump which advances fluid into said accumulator in response to rotation of said at least one wheel, wherein an increased pressure is generated within said accumulator in response to fluid being advanced into said accumulator by said pump, and wherein said increased pressure within said accumulator is maintained when said at least one wheel is stationary, further comprising a tank configured to store liquid therein, wherein said pump advances fluid from said tank to said accumulator in response to rotation of said at least one wheel, and further comprising a cam which moves in response to rotation of said at least one wheel, wherein said pump advances fluid into said accumulator in response to movement of said cam. 8. The pressure sprayer of claim 7, wherein: said pump includes a piston and a piston housing configured to receive said piston therein, and movement of said cam causes said piston to reciprocate in said piston housing. 9. The pressure sprayer of claim 8, wherein: said piston includes a piston shaft, a drive pin is attached to said piston shaft, said cam defines a cam track in which said drive pin is positioned, and movement of said cam causes said drive pin to advance through said cam track. 10. The pressure sprayer of claim 7, further comprising an axle extending between a first wheel and a second wheel of said pressure sprayer, said cam being mounted on said axle. 11. The pressure sprayer of claim 10, wherein: rotation of said first wheel and said second wheel causes movement of said axle, and movement of said axle causes movement of said cam. 12. A pressure sprayer, comprising: an accumulator for storing fluid therein under pressure; at least one wheel which rotates when said pressure sprayer is moved; and a pump which advances fluid into said accumulator in response to rotation of said at least one wheel, wherein an increased pressure is generated within said accumulator in response to fluid being advanced into said accumulator by said pump, and wherein said increased pressure within said accumulator is maintained when said at least one wheel is stationary, further comprising a hose in fluid communication with said accumulator, wherein (i) said hose has a valve mechanism coupled to one end thereof, and (ii) said valve mechanism includes a control lever. 13. A method of spraying fluid with a portable pressure sprayer having a tank, an accumulator, and a number of wheels, comprising the steps of: moving said portable pressure sprayer so as to cause said number of wheels to rotate; advancing fluid from said tank into said accumulator in response to rotation of said number of wheels; generating an increased pressure within said accumulator in response to fluid being advanced into said accumulator; maintaining said increased pressure within said accumulator after said moving step when said number of wheels are stationary; and advancing fluid from a first location within said accumulator to a second location outside of said sprayer while said number of wheels are stationary. 14. The method of claim 13, wherein: said step of advancing fluid from said first location within said accumulator to said second location outside of said sprayer includes the step of spraying fluid through a hose, said hose has a valve mechanism coupled to one end thereof, and said valve mechanism includes a control lever. 15. A method of spraying fluid with a portable pressure sprayer having a tank, an accumulator, and a number of wheels, comprising the steps of: moving said portable pressure sprayer so as to cause said number of wheels to rotate; advancing fluid from said tank into said accumulator in response to rotation of said number of wheels; generating an increased pressure within said accumulator in response to fluid being advanced into said accumulator; and maintaining said increased pressure within said accumulator after said moving step when said number of wheels are stationary, wherein said advancing step includes the step of pumping said fluid from said tank into said accumulator with a pump, and wherein (i) said pump includes a piston and a piston housing configured to receive said piston therein, and (ii) rotation of said number of wheels causes said piston to reciprocate in said piston housing. 16. A method of spraying fluid with a portable pressure sprayer having a tank, an accumulator, and a number of wheels, comprising the steps of: moving said portable pressure sprayer so as to cause said number of wheels to rotate; advancing fluid from said tank into said accumulator in response to rotation of said number of wheels; generating an increased pressure within said accumulator in response to fluid being advanced into said accumulator; and maintaining said increased pressure within said accumulator after said moving step when said number of wheels are stationary, wherein said generating step includes the steps of (i) moving a cam in response to rotation of said number of wheels, and (ii) operating a pump in response to movement of said cam. 17. The method of claim 16, wherein: said pump includes a piston and a piston housing, said operating step includes the step of reciprocating said piston within said piston housing, and said reciprocating step occurs in response to movement of said cam. 18. The method of claim 16, wherein said operating step includes the step of advancing fluid from said tank to said accumulator with said pump in response to movement of said cam. 19. The method of claim 18, wherein: an axle is interposed between a first wheel and a second wheel of said number of wheels, and rotation of said axle causes movement of said cam. 20. A method of spraying fluid with a pressure sprayer having at least one wheel, comprising the steps of: moving said portable pressure sprayer so as to cause said at least one wheel to rotate; generating an increased pressure within said sprayer in response to rotation of said at least one wheel; maintaining said increased pressure within said sprayer after said generating step when said at least one wheel is stationary; and advancing fluid from a first location within said sprayer to a second location outside of said sprayer after said generating step when said at least one wheel is stationary. 21. A method of spraying fluid with a pressure sprayer having at least one wheel, comprising the steps of: moving said portable pressure sprayer so as to cause said at least one wheel to rotate; generating an increased pressure within said sprayer in response to rotation of said at least one wheel; and maintaining said increased pressure within said sprayer after said generating step when said at least one wheel is stationary, wherein said generating step includes the steps of (i) moving a cam in response to rotation of said at least one wheel, and (ii) operating a pump in response to movement of said cam. 22. The method of claim 21, wherein: said pump includes a piston and a piston housing, said operating step includes the step of reciprocating said piston within said piston housing, and said reciprocating step occurs in response to movement of said cam. 23. The method of claim 22, wherein: said sprayer further has a tank and an accumulator, and said operating step includes the step of advancing fluid from said tank to said accumulator with sa id pump in response to movement of said cam. 24. The method of claim 23, wherein: an axle is interposed between a first wheel and a second wheel of said sprayer, and rotation of said axle causes movement of said cam. 25. The method of claim 23, further comprising the step of releasing pressure from said accumulator in response to pressure within said accumulator exceeding a certain value.