US1640273A - Seat with folding back - Google Patents

Description

Aug. 23, 192 1,640,273

J. A. HALAIS SEAT WITH FOLDING BACK Filed Jan. 29 192s Patented Aug. 23, 1927.

tlblilED STATES PATENT QFFECE.

JEAN ALFRED HALAISQ'OF PARIS, FRANCE.

SEAT VJITH FOLDING BACK.

Application filed January 29, 1926, Serial No. 84,?01, and in France January 30, 1925.

This invention has for object a seat which is so constructed as to be foldable to occupy a very small space and easily transported to any desired place.

The seat forming the subject-matter of this invention is essentially characterized by the fact that it comprises a seat proper and a back respectively hinged to the upper end of folding legs each constituted in two parts hinged together, these legs being connected in pairs by a joint and provided, on the upper end of their lower part, with iron fittings adapted to ensure the rigidity of the whole when the seat is in the open position. In the accompanying drawing and by way of example Fig. 1 is a side elevation of the seat in the open position.

Fig. 2 is a sectional elevation of the seat in the open position.

Fig. 3 is a View of the seat in the folded posit-ion.

Figure 4 is a perspective view of the seat, with the seat and back panels in the positions they assuinewhen foldin the scat.

Fig. 5 is a section on line 5 5 of Figure 1.

The seat is provided with two pairs of legs with joints so they can be folded and each pair of legs consists of two parts 5-6 and 56 which can be turned around pivoting points 7 and 7. The lower parts of the legs 6 and 6 are connected by joint 10. The two lower parts of the legs 6 and 6'? of each pair of legs are rigidly connected to the corresponding parts of the other pair of legs by bars 15 and form, in opened position, the base of the seat as shown in Figures 1, 2 and l. In the opened position the parts 5 and 5* form the upper part of the legs and are connected to the same parts of the other pair of legs by round connecting bars 1 and 2.

Bar 1 constitutes a horizontal axle to which is fastened by collars 16 a panel 3 forming the seat and provided with bars 4 to which the collars are fixed. Connection bar 2 constitutes another horizontal axle parallel to the first one and to which is fastened the back rest, consisting of another panel 3, by collars 17 fixed to bars 18 of the back rest. The seat 3 has on its rear end hooks 11 fastened to the bars t which can be engaged with connecting rod 2 when the seatns opened as shown in Figures 1 and 2.

The back rest is kept in this open position by the lower ends of the bars 18 fastened to the back rest leaning against angle irons 19 fixed to the inner sides of the upper parts 5 and 5 of the rear legs.

The lower parts of the legs 6 and 6 have on both sides .of the chair at their upper edges metal plates 8 and 8 connected by the joint stud 10 and having angular projections 9 and 9 serving as a rest for the upper parts 5 and 5 of the legs when the seat is opened as shown in Figures 1 and 2. The angle at which the lower parts of the legs 6 and can be opened is lii lited by their inner beveled upper edges (3 f the legs as clearly shown in Figures 1 to 3.

In the upper end of the back rest 3' a board or shutter 13 is pivoted at 14 and provided with a latch 12 which is engaged, when in folded position (shown in Figure 3) by a button 20 fastened to panel 3 to keep the seat folded. A handle 21 fixed to shutter 13 serves for the easy transportation.

To fold the seat froin the opened position shown in Figures 1 and 2 to the folded position of Figure 3, it'is only necessary to press with the hand on the seat 3 in an upward direction near the hooks 11 to disengage the said hooks from axle 2 and to free this panel, pivoting it around axle 1 in direction of arrow X on Figure 1. The upper parts of the legs 5 and 5 are then folded towards the lower parts 6 and G by turning on the joints 7 and 7 in the direction of the arrows Y and Z (Figure 4).

Parts 5 and 5 of the legs are then oisposed between the parts 6 and 6 and the said parts 6 and 6 are folded by turning them on the joint 10. The panels 3 and 3" forming the seat and the back rest are then turned towards the folded parts 5 and 6 and 5 and 6 of the legs as shown in Figure 3.

To keep the seat in folded condition it is only necessary to turn shutter 13 in the position shown in Figure 8 and to engage the locking device 12 with the button 20 of panel 3. The folded seat looks like a closed box and can be easily carried by handle 21 on shutter 13.

The seatis unfolded from the position shown in Figure 3 to that shown in Figure 2 by opening lock 12. Then the panels 3 and 8 are taken by their lower edges by reaching into the space between the folded legs and by lifting these panels, together with the upper part of the legs 5 and 5, by

turning these around the pivoting points 7 and 7 in opposite direction to the arrows Y and Z.

When the panels and the legs are brought in the position shown in Figure at it is only necessary to turn panel 3 in the opposite direction to arrow X and to engage the hooks 11 with the axle 2.

Claims:

l. A folding seat comprising: legs in two parts,a joint connecting the two parts of each leg, a oi nt connecting the lower parts of the legs,cros: s-bars connecting the upper parts 01 the pairs of legs, crossbars connecting the lower parts of the said legs,- a seatforming panel jointed at the front on one of the upper cross-bas,-a hack-forming panel jointed at its lower parts to the other upper eross-har,and means for holding the legs at fixed distance apart and ensuring the rigidity of the seat in the open position.

2. A folding seat comprising: legs in two parts,a joint connect ng the two parts of each leg,-a joint connecting the lower parts of the legs,-cross-bars connecting the upper parts of the pairs of legs,-cross-bars connecting the lower parts of the said legs, a seat-forming panel jointed at the front on the front upper cross-bar,--hooks at the rear end of the panel for supporting the seat on the rear upper cross-bar,-a back-forming panel jointed at its lower part to the rear upper cross-bar,a small board jointed to the upper edge of the baclr,means for holding the legs at a fixed distance apart and ensuring the rigidity of the seat in the open position,and means for transporting the folded seat.

3. A folding seat comprising: legs in two 1arts,a joint connecting the two parts of each leg,a oint connecting the lower parts of the legs,-cross-hars connecting the upper parts of the pairs of legs,-crossbars con necting the lower parts of the said legs,a

seat-forming panel jointed at the front on the front upper cross-bar,-hooks at the rear end of the panel for supporting the seat on the rear upper cross-bar,a back-forming panel jointed at its lower part to the rear upper cross-bar,a small board jointed to the upper edge of the back,a handle on said board,and means for holding the legs at a fixed distance apart and ensuring the rigidity of the seatin the open position.

4%. A folding seat comprising: legs in two parts,a joint connecting the two parts of each leg,-a joint connecting the lower parts of the legs,cross-bars connecting the upper parts of the pairs of legs,cross--bars connecting the lower parts of the said legs, a seat-forming panel jointed at the front on the front upper cross-har,hool:s at the rear end of the panel for supporting the seat on the rear upper cross-bar,a backforming panel jointed at its lower part to the rear upper cross-bar,a small board jointed t the upper edge of the back,and iron fittings, at the upper end of the lower parts of the legs, adapted to hold the legs in open position and to ensure the rigidity of the seat.

5. A seat comprising two pairs of legs,

each pair consisting of upper and lower parts pivoted together, the lower parts of each pair of legs being pivoted together, the upper and lower parts of the pairs of legs being connected together at their upper and lower ends respectively by bars, a seat hinged at its front end to the front connecting bar of the upper parts of the legs and having its rear end removably connected with the rear connecting bar of said legs, a back hinged to the said rear connecting bar, means on the upper rear parts of the legs for holding the back in position, a board hinged to the upper end of the back, and means for securing the hoard to the seat.

The foregoing specification of my seat with folding back signed by me this 19th day of January, 1926.

JEAN ALFRED HALAIS.

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