US1121789A - Wall-bed. - Google Patents

Description

W. T. BONNER.

WALL BED.

APPLICATION FILED JUNE 24, 1913 1,121,789; I Patented Dec. 22, 1914.

WILLIAM T. BONNER, OF SAN FRANCISCO, CALIFORNIA..

WALL-BED.

Application filed June 24, 1913. Serial No. 775,485.

' 'To all whom it may concern I Be it known that I, WILLIAM T. BONNER, of the city and county of San Francisco and State of California, have invented certain new and useful Improvements in VVall- Beds; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and tothe letters and figures of reference marked thereon, which form part of, this specification. 7

My invention relates to an improvement v in detached metal wall beds.

In the drawings which accompany and form a part of this specification, and in which similar letters and figures of reference refer to corresponding parts in the several figures, Figure 1 shows .a perspective view of my improved metal wall bed, in its folded position. Fig. 2 shows the continuous post, drop foot end of the bed: Fig. 3

shows the center brace and spreader, supporting several spiral springs. Fig. 4 is an inside View of one of the supporting sides of the bed, carrying the pivotal trunnion,

- the helical lifting springs and lever. Fig.

5 shows in section and in, larger scale the pivotal trunnion attaching to the sides of the bed.

Referring to the numerals marked upon the drawings, lindicates the bed bottom or mesh, which is formed preferably of wire or fabric, and stretched uponfour sides by means of small helical springs, 2, 2 attached to the continuous, one piece, angle iron bed frame 3 3 through small holes bored in the top flange of the angle iron. About midway between the head and foot of the bed bottom is a center brace on spreader 4, which has a double function, that of bracing and strengthening the angle iron frame, and that of supporting four or more spiral sprin s that extend from the brace or sprea er to the bottom mesh or fabric of the bed.

The bed frame is attached at 5 5 to the extension sides of the bed through a pivotal axial trunnion, the construction of which is clearly shown in Fig. 5. To the bed frame on either side near the head enchis attached the helical springs 6, 6, which springs are attached to the lon arms of the lovers 7, 7 The throw of the evers is limited by the points.

Specification of Letters Patent. Patented De 22, 1914 stops 11 11. To the short arms of the levers I are attached one endof the helical springs, 8, 8, the other ends of these helical springs are attached to the side frames of the bed by means of eye bolts, 9 9. The side frames of the bed are attached to the posts of the bed head with metal bed. fastenings disclosed 1n my copending application, Serial No. 679,524. The bed side frames are con- .nected by a shouldered spreader rod or pipe 12' 12 which rod acts also asa stop when the bed is lifted to a vertical position. The

locking rod 13 secures the bed in its vertlcal pos tion. The locking rods1414 secure the foot end in its vertical position when the bed is down.

The action :may' be briefly described as follows: When the bed is in a vertical position the helical springs 6 6 and 8 8,

are in a slight tension, holding the bed frame against the spreader and stop 12 at the bottom. The locking rod 13 may then be' snapped into place and the bed can be rolled into a closet or alcove or under a curtained canopy. The bed is lowered by unhooking the locking rod 13 and lifting the foot end, which turns in the angle ofthe bed frame and is held in position by bolts 16, 16 articulating in slots cut in the continuous post foot end, allowing the spring locking rods 14, 14 to snap into the holes 15 15. The bed will then lower by gravity, revolving upon the pivotal trunnions 5, 5,

the compounded helical springs, 6 6 and 8 8 checking the fall with increasing force as the bed approaches the horizontal position, the springs being so designed that they practically balance the lowering of the bed at all When starting to lower the bed the most of the strain and stretch in the springs, is upon the helicals, 8 8, as they are attached to the short arm of the levers, 7 7 the helicals 6 6 being practically out of action, but when the bed reaches approximately an angle of 45 degrees from the vertical, the

short arms of the lovers strike the stops 11 V 11; from thence to the horizontal position, all the increase of strain and stretch istaken by the springs 6 6, which springs are of proper gage, and size, to balance the weight of the bed. v

What I claim as new, useful and novel and desire to secure by Letters Patent is:

1. In combination with a bed having a head section, a foot section, a central ed bottom section connected to the foot section,

means to pivotally connect the central bed bottom section to the head section at points between the 'ends of the central bed bottom section, an inclined lever pivoted to each side of the head section at points beneath and in substantial alinement with the pivotal connections of the central bed bottom section and head section, each of said levers having short and long ends, horizontal coil springs connected to the short ends of the levers and to the head section, inclined coil springs connected to the long arms of the levers and to the front end of the central ,bed bottom section, and stops on the head section to engage the short ends of the levers to restrict the outward movements of said short ends.

2. In combination with a bed having a head-section; afoot section, and a central bed bottom section connected to the foot sec tion at one end'and having its opposite end pivoted to the head section, a lever pivoted to each side of. the head section, spring. connections between the upper ends of the levers and the head section to exert an inward tension on the said upper ends of the levers, other spring connections between the lower ends of the levers and the front extremity of the central bed bottom section to exert an inward tension on the lower ends of the levers, and stops to engage the upper ends of the levers to limit the outward movement of the upper ends of the levers.

I 3. In. combination with a bed having a head section, a foot section, and a central bed bottom s'ection connected to the foot section at one end and having its opposite end pivoted to the head section between the ends of the central bed bottom section, tensioning means connected to the front end of the cen- WILLIAM T. BONNER.- In the presence of- JOSEPH T. CARTER, W. HEALEY.

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