US3088129A - Convertible sofa beds - Google Patents

Convertible sofa beds Download PDF

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Publication number
US3088129A
US3088129A US51447A US5144760A US3088129A US 3088129 A US3088129 A US 3088129A US 51447 A US51447 A US 51447A US 5144760 A US5144760 A US 5144760A US 3088129 A US3088129 A US 3088129A
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US
United States
Prior art keywords
seat element
back rest
frame
seat
bed
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
US51447A
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English (en)
Inventor
Foseid Torodd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DEF30950A priority Critical patent/DE1163509B/de
Priority to GB13250/60A priority patent/GB871365A/en
Priority to LU38687D priority patent/LU38687A1/xx
Priority to BE591257A priority patent/BE591257A/fr
Priority to FR835034A priority patent/FR1264401A/fr
Application filed by Individual filed Critical Individual
Priority to US51447A priority patent/US3088129A/en
Application granted granted Critical
Publication of US3088129A publication Critical patent/US3088129A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/165—Seating furniture changeable to beds by tilting or pivoting the back-rest with forward tiltable back-rest, e.g. back cushion
    • A47C17/1655—Seating furniture changeable to beds by tilting or pivoting the back-rest with forward tiltable back-rest, e.g. back cushion forming top surface of the bed with non-rotatable seat cushion

Definitions

  • This invention relates to convertible sofa-beds and more particularly sofa beds of the kind in which the back rest and the seat are pivotally interconnected and the seat is supported lfor rotation about a longitudinal axis so that the back rest can be rotated forwardly while at the same time rotating the seat, the seat and back rest finally :forming a level sur-face adapted to form a bed surface.
  • a convertible sofa-'bed in which the longitudinal pivotal axis of the seat is movably mounted to permit the seat to move in the plane of its original position so as to bring the front of the seat out of and into engagement with the front support of the frame of the sofa.
  • the seat when the back rest is initially moved forwardly, to be initially moved rearwardly of the -frame so that the forward edge thereof is free from the front support of the frame whereafter the seat may be rotated freely about the said longitudinal axis.
  • the frame of the back rest is preferably provided with cam means co-operating with studs mounted in the side frame so that the back rest, after an initial forward pivotal movement acts as a lever and causes the seat to move rearwardly by a predetermined distance to free it from the front support of the frame prior to rotation of the seat.
  • the ends of the seat frame are connected to the adjacent side frames by a pivot and slot connection allowing a limited movement of the seat in its own plane with respect to the side frames.
  • the pivots may be mounted on the seat Iframe so that they project into slotshaped plates lon said side frames, or the pivots may be arranged on the side frames with the slotted plates on the seat frame.
  • a still further feature of the invention is a locking device by means of which the seat frame can be locked in the bed position.
  • the locking device is connected with a member which obstructs the surface of the bed or mattress until such member has been swung out of the way, the arrangement being such that this swinging movement automatically moves the locking device into its locking position.
  • FIGURE 1 is a side view of the sofa-bed in its sofa forming position with one side frame removed and with the position of the members in the first phase of the conversion movement shown in dotted lines.
  • FIGURE 2 is a similar view with the sofa-bed in its bed position and with the seat and back rest shown approximately at the midway position of the conversion movement in dotted lines.
  • FIGURE 3 is a plan view of one side frame of the sofa.
  • FIGURE ⁇ 4 shows a sectional detail view.
  • FIGURE 5 shows a perspective view of a portion of the structure of the sofa-bed.
  • IIn the drawings 1 indicates the side frame of the sofabed, 2 the seat ⁇ frame and 3 the back frame resting with its lower side on the seat frame as shown.
  • the seat frame is supported lby a longitudinal front frame member 4 and a corresponding rear frame member 5.
  • each end of the seat frame is secured a stud 6 projecting into a slot 7 in a plate 8 secured to the adjacent side frame.
  • Each of the studs 6 is provided with a rotatable sleeve 6' (FIG. 4) and a head having a diameter somewhat greater than that of the sleeve, so that the stud can roll by means of the sleeve 6 in the slot but is prevented from being withdrawn from the slot.
  • the studs 6 are positioned at the front end of the slots 7 which slots extend -approximately horizontally and towards the back.
  • the ends of said slots are provided with a small bearing depression shaped to receive the diarneter of the sleeve 6 as best seen in lFIG. 2.
  • a downwardly and forwardly curved arm 9 On each end of the back frame 3 at the rear side thereof is secured a downwardly and forwardly curved arm 9 the lower free end of which is attached by means of a link .10 to pivot 11 on the seat frame.
  • a link y13 On the seat frame there is a pivot 12 on which a link y13 is mounted the free end portion of which link has a longitudinal slot ⁇ 13 receiving a pin 14 secured to the arm 9.
  • the back lframe is held in position by means of bolts 15 threaded through each of the side frames 1 (as shown in FIG. 3) so that they can be screwed outwards until the ends thereof are flush with the inner side of the side frame for a purpose to be described below.
  • a rearwardly projecting cam member 16 is arranged at each end of the back frame to co-operate with the adjacent bolt 15.
  • the seat frame 2 is moved rearwardly to such an extent that the front side thereof is disposed rearwardly of the front supporting frame member 4 and can pass the latter during subsequent rotation of the frame 2.
  • the supporting legs 17 are swingable and are adapted to be positioned as shown in FIG. 2 with the back frame in the bed position for supporting the same.
  • the seat and back are disposed in horizontal juxtaposition both having their under side facing upwardly, which sides are provided with bed covers or mattresses, whereby wear and tear of the sofa covers is avoided.
  • each of the slots 7 at the middle thereof are provided with an upper opening 7' communicating with a groove 18 formed in the adjacent side frame 1 and extending to the rear side thereof.
  • the studs 6 of the seat frame By positioning the studs 6 of the seat frame at the middle of the slots 7 the studs 6 may be passed upwards into said grooves 18 and out therethrough.
  • the bolts 15 are arranged to be axially movable in the side frames 1 so that they can be adjusted until the end thereof is llush with the inner side of the respective side frames so as not to obstruct a rearward movment of the back frame 3 together with the seat frame during dismantling.
  • the lower side of the seat frame adjacent the front edge and at each end, is provided with an angle arm designated by numeral 21 as best seen in FIG. 5 wherein the angle arm 21 has a short leg 23 with a laterally projecting pin 23 at an end thereof pivotally supported in a bearing 20 which is secured to the frame and a longer leg 22 which extends upwardly and somewhat rearwardly as shown in FIG. 2 and which is secured, as by welding, to the pivoted end of leg 23.
  • Leg 23 carried at its free end a locking pin 24 which is directed towards the adjacent side frame and in the position shown in FIG. 2 engages across the edges of a locking plate 25 secured to the side frame 1 to prevent the frame 2 from turning downwards by rotating around the studs 6.
  • the end of the leg 23, carrying the locking pin 24, is connected 4 to the longer leg 22 of the angle arm by means of a brace 26.
  • the angle arms at both ends of the frame 2 are interconnected by means of two or more rods or tubes 27 constituting a frame structure.
  • the frame structure is covered with fabric 28 closing the frame and limiting the space at the under side of the sofa.
  • the angle arms and the interconnecting frame structure 27 is swung inwardly of the seat frame 2 so as to release the locking pins 24 from the plates 25.
  • the frame structure 27 can serve to hold bed clothes placed below the seat frame 2 while the frame structure is held in place in the sofa position by means of tie means, such as a band 29, one end of which is secured to the rear edge of the frame 2 and the other end of which can be secured to the rearward tube 27, as shown.
  • the interconnecting frame structure projects over the bed surface of the seat frame so that said surface, after the bed has been opened, cannot be used until said frame structure 27 has been swung up, and the locking pins 24 brought into engagement with the locking plates 25. This ensures that no one can lie down on the seat frame unless it has been locked against downward swinging.
  • grooves 30 shaped in accordance with the path of the pins 24 are provided in the side surface of the side frames 1.
  • a convertible sofa bed comprising side frame ele ⁇ ments, longitudinal front and rear support members connected to said side frame elements, a seat element resting on said support members, a back rest, means pivotally and slidably interconnecting said seat element and back rest, pivot means supporting the seat element from the side frame elements and permitting rotation and limited sliding movement of said seat element relative to said side frame elements whereby said seat element can be displaced to a position where the seat element is free from said front support member and is freely rotatable about said side frame elements, said pivot means including a plate provided with a slot on one of said elements and a pin connected to another of said elements, said pin being slidably and rotatably supported in said slot; and cam means coupling said back rest to said frame elements for controlling movement of said back rest, said cam means, upon initial movement of said back rest, causing the means interconnecting said seat element and back rest to displace said seat element to a position whereat the seat element is disengaged from said front support member so that upon further movement of the back rest the seat element is caused
  • a sofa bed as claimed in claim 1 wherein the means interconnecting the seat element and back rest comprises a downwardly projecting arm on said back rest adjacent each of the side elements, a link pivotally connected to the seat element and said arm, a second link pivotally connected to the seat element and having a slot, a pin on said arm and engaged in the latter slot, said pin and slot controlling movement of said arm to permit the back rest to be moved forwardly a limited distance with respect to the seat element, the sofa bed further comprising a bolt on each of the side frame elements, said cam means engaging said bolts at the end of said limited forward movement of the back rest, said bolts constituting pivot points about which the back rest can pivot, whereupon further movement of said back rest moves the seat element rearwardly and out of engagement with the front support member to enable pivoting of the seat element, further movement of the back rest causing pivoting of said seat element about said side frame elements.
  • a sofa bed as claimed in claim 4 comprising tie means detachably securing the frame structure to the seat element such that a space is defined between the frame structure and the seat element, which space is adapted for the storage of bed clothes.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Special Chairs (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
US51447A 1959-05-28 1960-08-23 Convertible sofa beds Expired - Lifetime US3088129A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DEF30950A DE1163509B (de) 1959-05-28 1960-04-07 Sofabett
GB13250/60A GB871365A (en) 1959-05-28 1960-04-13 Improvements in or relating to convertible sofa beds
LU38687D LU38687A1 (fr) 1959-05-28 1960-05-19
BE591257A BE591257A (fr) 1959-05-28 1960-05-27 Dispositif de lits-sofas transformables.
FR835034A FR1264401A (fr) 1959-05-28 1960-08-04 Canapé-lit perfectionné
US51447A US3088129A (en) 1959-05-28 1960-08-23 Convertible sofa beds

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO13197359 1959-05-28
NO13417759 1959-12-15
FR835034A FR1264401A (fr) 1959-05-28 1960-08-04 Canapé-lit perfectionné
US51447A US3088129A (en) 1959-05-28 1960-08-23 Convertible sofa beds

Publications (1)

Publication Number Publication Date
US3088129A true US3088129A (en) 1963-05-07

Family

ID=45582110

Family Applications (1)

Application Number Title Priority Date Filing Date
US51447A Expired - Lifetime US3088129A (en) 1959-05-28 1960-08-23 Convertible sofa beds

Country Status (6)

Country Link
US (1) US3088129A (fr)
BE (1) BE591257A (fr)
DE (1) DE1163509B (fr)
FR (1) FR1264401A (fr)
GB (1) GB871365A (fr)
LU (1) LU38687A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478371A (en) * 1966-12-19 1969-11-18 Ludwig Viehaus Seat furniture unit which is convertible into a bed
US3813711A (en) * 1971-11-27 1974-06-04 Beddy Spa Lukas Bed-settee
US10638849B2 (en) 2016-10-28 2020-05-05 Steelcase Inc. Convertible body support structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4304418A1 (fr) * 2021-03-11 2024-01-17 IKEA Supply AG Meuble, convertible d'un canapé à un lit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE53456C (de) * F. breyer in Berlin S., Kaiser Franz Grenadierplatz 4 Sophabett
US561751A (en) * 1896-06-09 Sofa-bed
US1119563A (en) * 1914-02-20 1914-12-01 John A Arton Convertible sofa.
US1330982A (en) * 1913-11-24 1920-02-17 Goldstein Samuel Bed davenport or couch
US1464900A (en) * 1921-12-29 1923-08-14 Edward R Brainerd Davenport
US1637797A (en) * 1920-07-26 1927-08-02 John A Arton Convertible furniture
US2597995A (en) * 1949-11-02 1952-05-27 Lodwick Aircraft Ind Inc Combination sofa and bed

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1261547A (en) * 1915-09-10 1918-04-02 Karpen & Bros S Sofa-bed, &c.
FR720581A (fr) * 1931-07-24 1932-02-22 Fauteuil ou canapé transformable
US1978902A (en) * 1933-06-21 1934-10-30 Virgil P Jackson Davenport
AT167149B (de) * 1949-09-09 1950-11-10 Josef Kotausek Bettsofa mit Wenderahmen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE53456C (de) * F. breyer in Berlin S., Kaiser Franz Grenadierplatz 4 Sophabett
US561751A (en) * 1896-06-09 Sofa-bed
US1330982A (en) * 1913-11-24 1920-02-17 Goldstein Samuel Bed davenport or couch
US1119563A (en) * 1914-02-20 1914-12-01 John A Arton Convertible sofa.
US1637797A (en) * 1920-07-26 1927-08-02 John A Arton Convertible furniture
US1464900A (en) * 1921-12-29 1923-08-14 Edward R Brainerd Davenport
US2597995A (en) * 1949-11-02 1952-05-27 Lodwick Aircraft Ind Inc Combination sofa and bed

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478371A (en) * 1966-12-19 1969-11-18 Ludwig Viehaus Seat furniture unit which is convertible into a bed
US3813711A (en) * 1971-11-27 1974-06-04 Beddy Spa Lukas Bed-settee
US10638849B2 (en) 2016-10-28 2020-05-05 Steelcase Inc. Convertible body support structure

Also Published As

Publication number Publication date
BE591257A (fr) 1960-09-16
DE1163509B (de) 1964-02-20
GB871365A (en) 1961-06-28
LU38687A1 (fr) 1960-07-14
FR1264401A (fr) 1961-06-19

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