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Publication numberUS3604027 A
Publication typeGrant
Publication dateSep 14, 1971
Filing dateAug 4, 1969
Priority dateAug 4, 1969
Publication numberUS 3604027 A, US 3604027A, US-A-3604027, US3604027 A, US3604027A
InventorsShunichi Konno
Original AssigneeShunichi Konno
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Construction for bed or chair
US 3604027 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

United States Patent 2,599,723 6/1952 Row 5/310 2,614,270 10/1952 Rosing S/320 3,090,239 5/1963 Dacus 308/10 3,467,973 9/1969 Minnick 297/452 Primary ExaminerBobby R. Gay

Assistant ExaminerDarrell Marquette Attorney-Dawson, Tilton, Fallon & Lungmus ABSTRACT: A bed or chair construction is provided with a plurality of helical springs for resiliently supporting a horizontal top plate above the frame. At least one electromagnet is secured to each of the top plate and the frame, and the electrical circuit for the electromagnets energizes the electromagnets in such a manner that the facing portions of the electromagnets on the top plate and on the frame have the same magnetic polarity. The electrical circuit also includes a variable resistor for varying the magnetic force.

CONSTRUCTION FOR BED OR CHAIR The present invention relates to a construction for a bed or chair, more particularly, to a bed or an upholstered chair structure having an adjustable magnetic cushion means.

At the present time, a bed or upholstered chair customarily consists of a coil or box spring provided with a mattress loosely disposed above it, so that the rate of resiliency and buffer or cushion thereof is difficult to be variable.

Accordingly, it is an object of the present invention to provide an improved construction for the bed or chair provided with an adjustable magnetic cushion means.

Another object of the present invention is to provide a new and improved construction for the bed or chair being rich in resiliency or cushion.

Other objects and advantages of the present invention will be clearly understood from the following exemplary description taken in connection with the accompanying drawings, in which:

FIG. 1 is a perspective view of a bed in accordance with the present invention;

FIG. 2 is a sectional view taken along line 2--2 in FIG. 1;

FIG. 3 is an enlarged perspective view of a part of spring unit of the bed in accordance with present invention; and

FIG. 4 is an electric circuit for energizing an electric magnet unit in the bed according to the present invention.

A preferred embodiment which has been selected to illustrate my invention comprises a coil spring unit 10. The spring unit is substantially rectangular in shape thereof and includes a plurality of inverted helical coils 11 which are preferably placed apart from each other and a plurality of magnet units 12.

The lower ends of the coils 11 are attached to a rectangular baseplate 13 and the upper ends of the coils being attached to a rectangular top plate 14. Said magnet units each comprises a pair of electric magnets 12A and 12B which are respectively supported by said plates in a manner such that the same poles such as, for example, N poles of the magnets 12A and 12B are faced at a suitable distance to repel against each other.

To energize the magnet units, an electric circuit 15 is provided as shown in FIG. 4. The said circuit is connected to DC power 16, and includes a main switch 17 and a variable resistor 18 for variation of the magnetic force in the magnetic units. The main switch 17 and the resistor 18 are preferably mounted to an outer side for convenience in manual operation thereof.

The spring units l0 are customarily mounted on a bed frame 19 having legs 20 beneath each corner thereof. A mattress 21 is disposed above the spring unit 10, and a flexible cover sheet 22 extends from the lower edge of the bed frame 19 over the mattress 21 so as to enclose the bed frame 19 and the spring units 10 with the mattress 21.

In the above-mentioned construction of the bed, it will be understood that the mattress 21 with the top plate are resiliently held in cooperation with reaction of the facing magnets in the magnet units, if desired, to vary the rate of resiliency or cushion. When the users weight is too heavy or vice versa, it is easily variable to the desired rate of the resiliency or cushion by adjusting the variable resistor 18 mounted to the outer side of the bed in manual operation. Consequently, considerably and suitable resiliency or cushion is given to the user to provide comfort. Furthermore, it will be noted that since the magnet units are enclosed within the spring unit and the spring unit is covered by the cover sheet 22, when the bed is viewed from the outer side the appearance thereof is thus identical with that of a conventional upholstered bed.

As many substitutions or changes could be made in the above-described construction, and as many apparently widely different embodiments of the invention within the scope of the claims could be constructed without departing from the scope and spirit thereof, it is intended that all matter contained in the accompanying specification shall be interpreted as being illustrative and not in a limiting sense. What 1 claim ls:

l. A construction for a bed or chair comprising a horizontal frame having supporting legs therebeneath, a plurality of compressible coil springs above the frame, a horizontal top plate supported by the springs, the axes of the coils extending vertically whereby the top plate is elastically supported by the springs, at least a pair of electromagnets, one of the electromagnets being secured to the frame and the other electromagnet being secured to the top plate and being spaced from the first electromagnet, an electrical circuit having a variable resistor for energizing the electromagnets to provide the facing portions of each electromagnet with the same magnetic polarity.

2. The construction of claim 1 including a plurality of pairs of electromagnets, one electromagnet of each pair being secured to the frame and the other electromagnet of each pair being secured to the top plate and being spaced from the first electromagnet of the pair, the electromagnets of each pair being energized to provide the facing portions thereof with the same magnetic polarity.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2476605 *Oct 2, 1946Jul 19, 1949Edmond E JacobBedspring support
US2529268 *Nov 3, 1949Nov 7, 1950Tauss Morris EInnerspring construction for mattresses, cushions, and the like
US2599723 *Mar 29, 1947Jun 10, 1952Row Henry H GLeg construction for coiled spring beds
US2614270 *Jun 8, 1951Oct 21, 1952Warren W RosingSheet holder for mattress ensembles
US3090239 *May 12, 1955May 21, 1963Bill Jack Scient Instr CoAccelerometer
US3467973 *Sep 28, 1967Sep 23, 1969Chris A MinnickMagnetic spring or shock absorber device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5054011 *Apr 25, 1989Oct 1, 1991Scosche Industries, Inc.Adjustably mounted portable compact disc player
US5103513 *Aug 25, 1988Apr 14, 1992King E AutryMagnetic-cushioned support for bed or seat
US5625914 *Feb 1, 1996May 6, 1997Schwab; Patrick R.Automatic mattress surface contour and support changing apparatus with wave sensors
US7089618 *Jun 18, 2003Aug 15, 2006The Coleman Company, Inc.Air mattress
US7337485Aug 31, 2005Mar 4, 2008The Coleman Company, Inc.Double high airbed utilizing coils
US7941882 *Jul 6, 2010May 17, 2011Jeremy Robert StrozerMagnetic cushioning system
US8191180Apr 19, 2010Jun 5, 2012Bret BerryApparatus for preventing head or neck injury using magnetic assistance
US20040085168 *Oct 24, 2003May 6, 2004Michael MartinApparatus for maintaining magnets in opposing relationship, and support apparatus that utilizes same
US20070044243 *Aug 31, 2005Mar 1, 2007The Coleman Company, Inc.Double high airbed utilizing coils
US20120119629 *Dec 14, 2010May 17, 2012Sac Acquisition LlcModular furniture assembly and display kit with magnetic coupling assembly
US20120317713 *Aug 14, 2011Dec 20, 2012Osnat EytanDevice to help nurse and move immobile patients in bed
US20140000012 *Jul 2, 2012Jan 2, 2014Sulaiman MustaphaMagnetic cushion technology
CN102182778A *Mar 10, 2011Sep 14, 2011喜临门家具股份有限公司Magnetic force spring
DE4305066A1 *Feb 19, 1993Jul 22, 1993Ralf VoelkeningUpholstery for seat or recliner - has integrated shock absorption unit producing interacting magnetic fields and two bar magnets or one electromagnet, with barrier and shield
EP2036461A1 *Aug 21, 2008Mar 18, 2009Lo-Ping HsuMagnetic levitation cushion and magnetic levitation device thereof
WO2003001948A1 *Jun 12, 2002Jan 9, 2003Beter Bed Holding N VA frame for supporting a mattress
WO2012127258A1 *Mar 22, 2011Sep 27, 2012Antonio CorvinoFittings or furnishings construction with a floating working table
U.S. Classification5/697, 5/693, 5/906, 5/936, 267/177, 5/246, 297/284.1, 5/716
International ClassificationA47C23/043
Cooperative ClassificationY10S5/936, A47C23/043, A47C31/003, Y10S5/906
European ClassificationA47C23/043, A47C31/00F