Abstract:
A convertible chair having a board (2, 36) inside the frame of a chair or arm-chair to which the seat (0, 35) has been previously removed. This arrangement provides that the seat (0, 35) will act as a support for the board (2, 36) when the latter is used as an ironing table or a bar table. To this effect, a frame is deployed so that the board (2, 36) passes from the back or vertical position to the horizontal or table position , Additionally, the panel of the seat (0, 35) moves from the horizontal position to the vertical position as a support for the board (2, 36) when the latter is in the table position. In the version of the seat assembly transformable into a table and bar, the latter is incorporated into the seat body. The invention finds application in household furniture, fair stands and commercial shows.

Description:
FIELD OF THE INVENTION 
     The present invention refers to a new prototype made up of a chair or lounge chair that may be converted into a table and bar for use in homes, apartment-hotels, booths at fairs and commercial expositions, and offices. 
     SUMMARY OF THE INVENTION 
     It is an object of the present invention to provide a convertible chair which reduces the need for space. 
     It is still a further object of the invention to provide a convertible chair including a chair frame having a pair of spaced front legs having an upper portion; a pair of spaced rear legs opposed from the front legs; a pair of upwardly extending members each having a distal end projecting from the pair of rear legs; and a plurality of connecting members rigidly securing the pair of front and rear legs to the chair. A backrest is provided which is pivotally securable to the frame between the upwardly extending members. The backrest is rotatable from a generally vertical orientation to a substantially horizontal orientation forming a table surface. A panel forming a seat having a front end, and having a substantially horizontal orientation forming a sitting surface is further provided. The seat is pivotally securable to the frame adjacent the pair of front legs by at least one first pivot device. The at least one first pivot device includes a rigid L-shaped member having a first leg and a second leg. The first leg is rotatably secured to the frame about a first center of rotation and the second leg spaces the seat a distance from the frame and is rigidly attached to a bottom surface of the seat. The seat is rotatable to a substantially vertical orientation and selectively engageable with the horizontally orientated backrest, thereby forming a support for the backrest in the horizontal orientation. 
     Furthermore, with the same quality, it may be more favorable economically. It is a further object of the invention to provide a convertible chair comprising, a chair frame. The frame including a pair of spaced front legs having an upper portion, a pair of spaced rear legs opposed from the front legs, and a pair of upwardly extending members projecting from the pair of rear legs each having a distal end. The pair of front and rear legs being rigidly secured to the frame and fixed with respect thereto. A backrest is provided, having an upper and lower end, and is pivotally securable to the frame between the upwardly extending members. The backrest is rotatable from a generally vertical orientation to a substantially horizontal orientation forming a table surface. The chair of the present invention further includes a seat having a front end. The seat is pivotally securable to the frame and has a substantially horizontal orientation forming a sitting surface. The seat is rotatable to a substantially vertical orientation engageable with the horizontally orientated backrest, thereby forming a support for the backrest in the horizontal orientation than when bought separately. 
     The idea for this set derives from that of providing an ironing board inside the frame of a chair from which the seat has been previously removed. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a side elevational view of the convertible chair of the present invention. 
     FIG. 2 is a rear elevational view of the convertible chair of FIG. 1. 
     FIG. 3 is a top plan view of the convertible chair of FIG. 1. 
     FIG. 4 is a partial front elevational view of the convertible chair of FIG. 1. 
     FIG. 5 is a side elevational view of the convertible chair of FIG. 1 showing the backrest in the horizontal position. 
     FIG. 6 is a side elevational view of an alternative embodiment of the convertible chair of the present invention. 
     FIG. 7 is a side elevational view of an alternative embodiment of the convertible chair of the present invention. 
     FIG. 8 is a rear elevational view of the convertible chair of FIG. 7. 
     FIGS. 9-11 are detailed views of various components of the convertible chair of FIG. 7. 
     FIGS. 12-14 are various perspective views of the different configurations of the convertible chair of FIG. 7. 
     FIG. 15 is a side elevational view of an alternative embodiment of the convertible chair of the present invention, 
     FIG. 16 is a side elevational view of the convertible chair of FIG. 15 showing the seat and showing the movement of the seat and backrest. 
     FIG. 17 is a top plan view of the support member of FIG. 15. 
     FIG. 18 is a side elevational view of the convertible chair of FIG. 15 showing the chair converted into a table and bar. 
     FIG. 19 is a side elevational view of the support member of FIG. 17. 
     FIG. 20 is a side elevational view of an alternative embodiment of the convertible chair of the present invention. 
     FIG. 21 is a perspective view of adjacently disposed convertible chairs attached to each other. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The present invention is directed to a chair which is convertible to a table, ironing board and bar. The chair includes a pivotable panel (0) forming a seat and a pivotable board (2) forming a backrest. It is envisioned that the panel (0) will provide support for the board (2) when the latter is in the horizontal position. 
     Based on this concept, the frame has been coupled to the board (2), giving the frame the inside dimensions necessary for the board (2) to pass from the vertical or back-support position to the horizontal position. 
     Keeping in mind that the outside measurements must stay within those typical of a chair or lounge chair of these characteristics. 
     Thus the upper front part is deleted and the front is reinforced by making the remaining front piece, at half the height, twice as wide. 
     Less height is given to the sides. 
     A little more depth is given to the frame. 
     Panel (0), these panels will occasionally take a space in the upper area. Seen in the seat position, two pivotable and displaceable parts are built into front part, lower part, one on each side. 
     These pivoting and displaceable pieces have a radius of at least (60 mm) from the panel (0) to the pin, making the panel (0) higher than the sides, and imparting to it the conventional height for a seat. 
     Also when it pivots to take the vertical or board (2) support position, it is displaced toward the front of the frame, which allows the board (2) to move to its exit through the front so that it can rise to assume the horizontal position of an ironing board. 
     Part (6) is made with 12-mm round stock in the form of an L whose vertical surface ends on an 8-mm threaded dowel, on its horizontal surface on the end it has a 20×8 mm pin. 
     Part (5) is a 35-mm ball which acts as a bearing; a 40×8 mm peg protrudes from the bottom surface, perpendicular to the hole. 
     Part (7) is a ball with a through-hole, half with a diameter of 12 mm and the other half 9 mm, forming a complement to the design. 
     Part (3), a ball with a 20 mm×9 mm hole, serves as a nut. 
     In order to install the panel (0) into the frame, parts (6) are mounted using their threaded dowels, with the balls (7) already built in, over the holes previously formed on the lower surface of the front, near the ends. 
     Parts (5) which serve as a bearing for the pins of part (6) are installed one on each side on the upper part of the front in the holes made in that part of the frame. 
     The parts on which panel (0) rests on its lower surface, in the seat position, are mounted on the upper side of the upper parts on the sides of the frame. These parts consist of 100 mm×12 mm round stock which carries a threaded dowel at each end. 
     In the lower part it has a built-in complementary ball and on its upper part a nut-ball (3) on which the panel (0) rests. 
     Pivot part (4), consisting of 470 mm×12 mm, round stock, terminates in a 20 mm×8 mm pin at each end. 
     From this round stock, with a distance between them that will be determined by the width of board (2), project two perpendicular pieces of 30×12 mm round stock, on the ends of which balls (3) are affixed such that their threaded holes are facing each other. 
     The bearing balls (5) are installed on the pins of part (4). 
     This group is installed in the upper part of the back side of the frame. 
     Board (2) is placed between the balls (3) using screws (12), which pass through the board (2) frame tube and are introduced into the holes in the balls (3). 
     Thus the board is ready to assume both positions. 
     Complete cases are envisioned such that either panel (0) or board (2) may assume both positions. 
     In the bottom part, between the wooden frames (FIGS. 1 and 6), it has a built-in auxiliary panel made of 7-mm thick plywood, which is set into grooves that run the length of the insides of the lower parts of the sides of the wooden frames. 
     The arm rests will be made optionally. Their shape and thickness shall correspond to the design of the models on which their installation is desired. Their mounting shall employ the same method used for the frames. 
     The sides of the frames are prepared and mounted in the conventional manner. They have through-holes (9) which correspond to the holes (10) on assembly parts (11) and (13), which go from side to side. 
     These sets shall be offered unassembled in boxes. 
     As shown in FIGS. 1 and 5, the chair may further include a part (1) which assists in removably securing the seat panel (0) to the backrest board (2) when board (2) is in the horizontal orientation. 
     Metallic frame set (FIGS. 7 and 8) constructed from round-cornered rectangular tubing. 
     Formed by two inverted U-shaped sides, with the rear legs at an angle greater than 120°. 
     The rear part also an inverted U shape, almost twice as high as the sides. Seen from the side, it takes on an angle of over 135°. 
     The sides are fastened to the rear frame and to the double front piece by means of screws (28). 
     The nuts are installed on the inside, within the tubes that make up the sides of these frames. The heads of the screws face the inside of the frame. 
     The set is composed of a chair or lounge chair with an ironing board (2) that serves as a back support and as an ironing board. 
     The pivoting and displacement of the seat to the front in this metal frame model is performed by part (32). 
     This piece, mounted on either side of the frame, seen in a side elevation, has the shape of a triangle with a rounded lower vertex. There is a hole (31) over which the collar screw, which at the same time serves as the pin on which part (32) turns, is installed, and penetrates to the inside of the side where it is fastened to the frame by a nut (34) welded inside the tube. 
     This part (32), seen in a front elevation, has the shape of an inverted L on whose upper branch panel (0) is installed, using through-bolts. 
     The chair or lounge chair set is convertible into a table and bar (FIGS. 15, 16, 17, and 18), consisting of a frame, preferably of wood, on which a panel (35) has been installed, which in the horizontal position serves as a seat and in the vertical position as a support for the board (36); when the latter functions as a table, board (36) serves as back support and table. 
     Part (38), made with sectioned 40×2 mm sheet metal strips, similar to a U-shaped channel whose sides, on the top, open at a 25° angle, and with four pins or claws, two on each end at the bottom. The sides of the upper part are folded and extended outward in the form of a wing, bearing two holes on each wing. 
     These parts are assembled on the bottom side of the board, one on each side, at some 15 cm from its front end in the table position. 
     The height of the table, the bottom of the seat, and the inclination of the back rest are achieved by the height of these parts. 
     When the board (36), whose approximate measurements are length 950 mm, width 400 mm and thickness 15 mm, is vertical and in the back rest position, its lower end almost reaches the floor, set between the two bar boxes (44) that are inside the body of the seat. 
     The aforementioned box has, over half of its space, the rear over a quarter part, leaving a space between them, where board (36) is stored when it assumes the vertical or back support position. 
     In these boxes, the outer layer is made of a plastic sheet or similar material of an adequate hardness and thickness. 
     Along the inside corners there is 90° angle groove which allows it to be bent at the same angle. 
     The joining of the ends is achieved by mounting one end on top of the other. Both are screwed together to the inside of the front and rear vertical parts, which may be taken apart. 
     These boxes are good for storing beverage bottles, glasses, a cocktail shaker and as a bar. 
     Halfway up the rear vertical parts, on the inside, there are some U-shaped grooves for mounting a shelf (42) with our without railing. 
     In order to be able to use these spaces on the inside of the body of the seat, parts (40) have been prepared, which allow the board, part (36), which serves as back support and table, to be displaced and rise and fall from the vertical position or back support to the horizontal position or table and vice versa. 
     Board-support frame, part (40), seen in a top view, is a square formed by an iron bar of appropriate thickness and quality. Two pivot pieces (39) are installed on this frame in the top, and two pivot pieces (39) are installed in the bottom. 
     These parts are assembled on the bar before it is bent, so that once bent, it may be welded at the bottom. 
     Pivot pieces (39) are a tube from whose sides a wing with three holes emerges. 
     Board-support frame (40) is incorporated into the frame, fastened to the back, top, and front of the frame using pivot parts (39), which are screwed to the top of the frame. 
     Board (36) is incorporated into frame (40) by fastening pivot parts (39), which are incorporated into the bottom of frame (40), to the back of the board using screws. 
     For easier raising of panel (36) from the back rest position to the table position or vice versa, a handle (37) is installed through the back at over 350 mm from its top end, as seen in cross section. 
     Panel (36) shall have an optional S-shaped cutout near one of its corners, on one of the ends. This cutout begins at the center of one end and extends until it rounds the corner. Or two cutouts, one on each side of a corner, leaving the rounded end similar to a journal are used. 
     It will have ready-made holes at the back of the panel, so that when the panel is assembled, it remains at the top, either end equally being in back support position. 
     FIG. 20--Convertible chair or lounge-chair set, consisting of a frame which has a flat panel which in the horizontal position serves as a seat and in the vertical position serves as a support for the board when the latter assumes the table position. 
     The board which serves as a table and back support in this set is composed of two boards whose measurements are over 600×400×15 mm for the front piece (45) and 350×400×15 mm for the back piece (46). 
     These two boards are joined by a single hinge 19 along the entire width, or by two or more hinges placed on the bottom side, when the board is seen in the horizontal or table position. When displaced from the table position to assume the back support position, the boards, when they reach the latter position, are fastened with the introduction of the screw eyes (17) through the hasps incorporated in the points (18). 
     This set includes a bar inside the body of the seat. It forms a box, with or without decoration, divided by boards for keeping bottles, glasses, and a cocktail shaker. 
     The box and the boards with the frame are removable. 
     Part as shown in FIG. 21, several convertible chair sets may be joined by a connector (50) set into grooves (43) provided in the top of the upper sides, near rear vertical frame parts (50) made of the iron bar has an inverted U-shape with the ends slightly bent out and whose inside measurements shall be determined by the separation between the sides of the two joined sets.