US3851344A - Folding bed assembly - Google Patents

Folding bed assembly Download PDF

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Publication number
US3851344A
US3851344A US00342057A US34205773A US3851344A US 3851344 A US3851344 A US 3851344A US 00342057 A US00342057 A US 00342057A US 34205773 A US34205773 A US 34205773A US 3851344 A US3851344 A US 3851344A
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US
United States
Prior art keywords
bed
pulley
rear wall
pivot
torque
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00342057A
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English (en)
Inventor
E Zeithammer
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3851344A publication Critical patent/US3851344A/en
Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/38—Wall beds
    • A47C17/40—Wall beds having balancing members, e.g. weights, springs

Definitions

  • ABSTRACT A boxlike covering has a bottom and a vertical rear 0 Foreign Application priority Data wall and is open in front opposite to said rear wall.
  • a large number of assemblies have been disclosed which comprise a bed that can be folded into a boxlike covering and in which the weight of the bed is compensated in part by tension springs.
  • the tension springs are connected at one end directly to the bed and at the other end'to the stationary frame of the assembly.
  • Such spring arrangement can compensate only a relatively small part of the weight of the bed so that a relatively large effort is still required to fold the bed up and down.
  • the deflecting pulley around which the tension rope is trained is disposed adjacent to the rear wall of the box and the stationary frame of the assembly is provided at its end disposed near the head end of the bed with a cam track, in which the tension rope is guided, which is loaded by a counterweight or by spring means.
  • the bed may assume an intermediate position in which the torques which are due to the spring force and to the weight of the bed, respectively, balance each other. In the other intermediate positions, either the torque which is due to the weight of the bed or the torque which is due to the spring force will predominate.
  • the weight of the bed is compensated only in part in this known arrangement and its manipulation also requires a relatively large effort.
  • This object is accomplished in that the deflecting pulley is disposed in front of and spaced from the rear wall of the box.
  • the weight of the bed, the spring force and the lever arms can be selected so that the torques due to spring force and load, respectively, balance each other in all positions of the bed and substantially no effort is required to manipulate the bed.
  • a further feature of the invention resides in that the tension rope extends from the deflecting pulley, which is disposed in front of and spaced from the rear wall of the box, to another deflecting pulley disposed adjacent to the rear wall of the box, further around a movable pulley, which is connected to the spring, to stationary rope-fixing means disposed adjacent to the bottom of the box.
  • FIG. 1 is a side elevation showing a bed assembly according to the invention in solid lines in an upfolded position and in dotted lines in a downfolded position.
  • FIG. 2 is an elevation showing one-half of the bed assembly as viewed in the direction of arrow II in FIG. 1.
  • FIG. 3 shows the bed assembly in an intermediate position to illustrate the torque actions.
  • the drawings show a bed 1 which is foldable about an axis 2 which is defined in that pivot pins mounted on the side members of the bed are seated in recesses formed in arms 3.
  • the arms 3 form parts of a frame 4.
  • Two pairs of tension springs 5 are hooked into the top member of the frame 4 near respective ends thereof.
  • Each pair of tension springs carry a cross-member 6, to which a pulley 7 is connected.
  • a plate 9 is connected by struts 8 to the frame 4.
  • Two deflecting pulleys 10 and 11 are mounted on the plate 9.
  • the pulley 10 is spaced from the frame 4, which forms also the rear wall of a boxlike covering.
  • the side walls of the covering are desirably connected to the arms 3.
  • a tension rope 13 is connected to an arm 12, which is connected in turn to the end of the bed 1.
  • the rope 13 is trained around the deflecting pulleys l0 and 11 and the floating pulley 7 and extends to a fixing point 14 on the frame 4.
  • a folding bed assembly which comprises a boxlike covering which has a bottom and a vertical rear wall and is open in front opposite to said rear wall,
  • torque-balancing means arranged to facilitate the movement of said bed about said pivot and comprising a deflecting pulley disposed adjacent to said bottom and in front of said rear wall and spaced from the latter, a tension rope connected to said bed and trained around said pulley, and a spring loading said tension rope.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)
US00342057A 1972-03-24 1973-03-16 Folding bed assembly Expired - Lifetime US3851344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT254972A AT311588B (de) 1972-03-24 1972-03-24 Kastenbett

Publications (1)

Publication Number Publication Date
US3851344A true US3851344A (en) 1974-12-03

Family

ID=3536261

Family Applications (1)

Application Number Title Priority Date Filing Date
US00342057A Expired - Lifetime US3851344A (en) 1972-03-24 1973-03-16 Folding bed assembly

Country Status (7)

Country Link
US (1) US3851344A (enrdf_load_stackoverflow)
AT (1) AT311588B (enrdf_load_stackoverflow)
CH (1) CH544530A (enrdf_load_stackoverflow)
DD (1) DD102578A5 (enrdf_load_stackoverflow)
DE (1) DE2312479A1 (enrdf_load_stackoverflow)
FR (1) FR2178654A5 (enrdf_load_stackoverflow)
IT (1) IT982294B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058861A (en) * 1975-09-18 1977-11-22 Eckart Kruse Cabinet
US4350382A (en) * 1978-12-21 1982-09-21 Spronck Emmanuel S M Balancing device and foldable platform sideboard
US4736476A (en) * 1987-03-17 1988-04-12 Benigno Maqueira Wall bed mechanism
US5207110A (en) * 1991-03-28 1993-05-04 The United States Of America As Represented By The United States National Aeronautics And Space Administration Suspension device for low-frequency structures
US5353452A (en) * 1993-09-08 1994-10-11 Rulis Robert A Folding bed assembly
US5446932A (en) * 1994-05-18 1995-09-05 Voorhis; Donald P. Folding wall bed
US5875502A (en) * 1997-01-17 1999-03-02 Kolbenstetter; Gary Space saving institutional bed

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046572A (en) * 1960-01-14 1962-07-31 Miller Herman Inc Bed
US3359927A (en) * 1965-01-14 1967-12-26 Janus Stanley Balancing mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046572A (en) * 1960-01-14 1962-07-31 Miller Herman Inc Bed
US3359927A (en) * 1965-01-14 1967-12-26 Janus Stanley Balancing mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058861A (en) * 1975-09-18 1977-11-22 Eckart Kruse Cabinet
US4350382A (en) * 1978-12-21 1982-09-21 Spronck Emmanuel S M Balancing device and foldable platform sideboard
US4736476A (en) * 1987-03-17 1988-04-12 Benigno Maqueira Wall bed mechanism
US5207110A (en) * 1991-03-28 1993-05-04 The United States Of America As Represented By The United States National Aeronautics And Space Administration Suspension device for low-frequency structures
US5353452A (en) * 1993-09-08 1994-10-11 Rulis Robert A Folding bed assembly
US5446932A (en) * 1994-05-18 1995-09-05 Voorhis; Donald P. Folding wall bed
US5875502A (en) * 1997-01-17 1999-03-02 Kolbenstetter; Gary Space saving institutional bed

Also Published As

Publication number Publication date
IT982294B (it) 1974-10-21
AT311588B (de) 1973-11-26
FR2178654A5 (enrdf_load_stackoverflow) 1973-11-09
CH544530A (de) 1973-11-30
DD102578A5 (enrdf_load_stackoverflow) 1973-12-20
DE2312479A1 (de) 1973-10-04

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