DE53673C - Device for adjusting the head section on day beds - Google Patents

Description

IMPERIAL

PATENT OFFICE.

Fig. Ι the accompanying drawing shows the bed frame with the movement mechanism for the head part seen from above. Fig. 2 shows a cross section (arrow Fig. 1) and FIG. 3 shows a longitudinal section of the bed frame with the movement mechanism.

The frame of the bed rest consists of a rectangular base frame A, Fig. 1 to 4 ·, and a head frame B, which is rotatably connected to the front end around the point \ to the underframe A.

The head frame has the two longitudinal sides B and the cross connections B ₁ .B ₂ B _s .B ₄ , Fig. 1 to 3. With the cross connection .B _{4 of} the head frame is firmly connected and perpendicular to the same a lever C is attached, which, when it is pressed at its lower end in the direction of the arrow x, Figs. 1 and 3, the head frame is raised so that it rotates about \. With the lower end of this lever C , a lever connection piece D is attached rotatably in y and rotatably movable up and down by hinge, Fig. 1 to 3, which moves the lever C in the direction of arrow χ when pressed. This lever connection piece is connected at its other end in the same way as with C with the long leg of an obtuse-angled lever E rotatably about point w. The obtuse-angled lever E can be rotated at its vertex ν in the lateral direction of the arrow χ. To prevent it from tilting up and down, the long leg of E lies between two guide strips F and F ₁ , between which E runs on two pairs of rollers α and a _y .

On the short leg of the lever E there is a padding r, which must be present because of the padding, and on this a guide u, in which there is enough leeway that the pin t of a screw nut 5 is when the lever E is moved as required can move sideways, but connects the lever to the nut in such a way that, when moved, it takes it forwards or backwards.

The screw nut s runs on a screw g with a steep thread, which is mounted in the base A by a collar 0 and runs in a bearing m at the other end.

On the outside of the sub-frame there is a handwheel n on the screw g , by means of which the rotation of the screw is accomplished.

The collar and the bearing of the screw prevent the screw from being screwed in and out (shifting), so that the nut s must move back and forth on it, depending on which direction the wheel is turned.

The headrest is rotatable about its end point \ and especially if someone is lying on the couch, quite heavy and therefore not easy to lift and. In order to remedy this inconvenience, so many springs are attached to a board parallel to B _{1 of the base} frame and - placed against the connecting board B _{i of} the head frame, that the whole head rest, when padded, not only balances, but is still balanced by the springs more force is carried than a person lying on the bed about the headrest

Claims (1)

would press with his head. So the mechanism has when the head frame is moved down respectively the backrest, when nobody is lying on it, just apply the overpressure of the springs overcome, or if someone is lying on it, only a small amount when lifting or lowering Compensate for force difference. This is fully achieved by the mechanism. If the wheel η is turned in the direction of the arrow h , the screw g turns in the same direction, and because it has a left-hand thread, the nut s moves away in the direction of the arrow i and the pin f on the nut hits the pad r and pushes the lever E by means of its small leg, turning around ν , also in the direction z; since the movement of the small leg of the great leg enlarged Mafse χ in the direction transferred to the lever connector D and this moves the lever C, then the head is raised rest, by rotating about%, fast in the height. When the little wheel is turned back, the mechanism functions in the opposite way when the headrest is heavily loaded than the excess spring pressure is strong; the short leg of E then presses with its padding against the pin t of the nut s and follows by itself when the nut drops. If the load on the backrest is less than the overpressure of the spring, the pin t lies against the one attached to the padding Guide u and pulls the lever and thereby the head frame back with it. By means of the screw spindle η g it is possible to generate such a great force that the ratio of the short leg of the lever E to the long leg is only slightly taken into account, and because of the load-bearing capacity of the coil springs only a small force is necessary to move the headrest, so Even a weak patient can easily adjust the backrest. In this way there is a construction for moving the up and down with such ease The headrest of a bed allows everyone to lie on it without changing their position and without its weight lying on the headrest, albeit significant reduce, this can be adjusted with ease into the most comfortable position for him, so that himself the backrest by slightly turning one attached to the side of the daybed and fitting to the hand seated wheel can be brought into any position between almost horizontal and vertical position. Pa τ ε ν τ - A ν s ρ R υ c η: A device for adjusting the head Theiles of couches, comprising a ν in its apex rotatable bell crank EE ^1, on the one hand means through g on spindle sliding nut 5 of the pin t is and beeinflufst which on the other hand of by the articulated intermediate part D with the support C Head part B is connected, so that with a corresponding rotation of the spindle, the angle lever is rotated and thereby the lifting BEZW. Lowering of the movably arranged at \ head is partly veranlal'st. For this purpose I sheet drawings.