US3854154A - Under mattress for reclining furniture - Google Patents

Under mattress for reclining furniture Download PDF

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Publication number
US3854154A
US3854154A US00415556A US41555673A US3854154A US 3854154 A US3854154 A US 3854154A US 00415556 A US00415556 A US 00415556A US 41555673 A US41555673 A US 41555673A US 3854154 A US3854154 A US 3854154A
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US
United States
Prior art keywords
frame
locking
sections
pawl
recesses
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
US00415556A
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English (en)
Inventor
F Degen
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.)
INPAVER AG
Original Assignee
INPAVER AG
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 claimed from CH580268A external-priority patent/CH492430A/de
Application filed by INPAVER AG filed Critical INPAVER AG
Application granted granted Critical
Publication of US3854154A publication Critical patent/US3854154A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head-, foot- or like rests for beds, sofas or the like
    • A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/043—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/34—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with provisions for giving extra support for the head or the legs

Definitions

  • the locking device is stated to comprise pairs of interdigitated assemblies having recesses formed in edges thereof, and a manually operated pivoted paw] having a locking tooth engageable in aligned recesses of said pair.
  • a mechanism for releasing the locking device from a freed position when the under mattress reaches a horizontal disposition is disclosed.
  • the subject matter of the British Patent relates to an under mattress frame for reclining furniture which comprises a frame which is tiltably mounted in side portions of the reclining furniture, and which is subdivided into at least two sections which are relatively pivotable about an axis transverse to the longitudinal axis of the reclining furniture, the two sections being lockable by stop'means, operable by a person resting on the under mattress, in a substantially horizontal stop position and one other stop position.
  • the under mattress according to the broadest claim of the British Patent is further limited in that the stop means has on each side of one frame section a pivotably mounted locking member, each locking member overlapping the adjacent frame section to positively engage with locking means provided on the latter in each stop position of the under mattress but to adjustably engage in positions of the under mattress intermediate the stop positions, whereby the two frame sections can asstop positions in response to movements of a person resting on the under mattress, the stop means automatically becoming locked when the two frame sections reach said substantially horizontal stop position.
  • an under mattress for reclining furniture having a frame which is pivotally mounted in side portions of the reclining furniture and is subdivided into at least two sections which are relatively pivotable about an axis transverse to the longitudinal axis of the reclining furniture, the angular position of the two sections beinglockable by a stop means operable by a person resting on the under mattress in a substantially horizontal stop position and at least one other stop position, is characterised in that the stop means comprises locking devices provided on each side of the frame at the ends of each section adjacent to the pivoting axis each locking device comprising a plurality of parallel spaced-apart arresting plates forming an assembly rigidly attached to its associated section of the frame, edges of the plates in each assembly being formed with
  • stop means is not only more robust and functionally more reliable than the arrangement disclosed in the prior patent, it also makes for greater comfort.
  • the user of an under mattress in accordance with a preferred embodiment of this invention can now choose between several different, for instance three different, angles of relative tilt of the two sections of the frame and still achieve the free floating angled reading position by performing a single manipulation, from which the fully extended sleeping position can be automatically obtained without effort simply by stretching out the body into sleeping position.
  • a strap loop may be attached to that end of the locking pawl which is remote from the locking tooth and adapted to be retained (e. g., frictionally) by a retaining element on one longitudinal side of the frame thereby to keep the locking pawl out of engagement.
  • the recesses in all the arresting plates may preferably be arranged on an arc of a circle about the axis of the hinge between the two sections of the frame.
  • the or each locking pawl may be formed on its underside with a ramp at a distance from the axis of the hinge joining the two sections of the frame, which distance, when the or each pawl is disengaged, exceeds the distance from the axis of the adjacent upper edge of a bottom web of the frame in such manner that the upper edge will ride under the ramp of the or each disengaged locking pawl when the two sections of the frame are deflected into their fully extended position, and force the or each pawl upwards into locking position by overcoming frictional resistance employed to hold the pawl in its disengaged position.
  • FIG. 1 is a perspective view of an under mattress frame
  • FIG. 2 is a side view of a constructional detail on a larger scale
  • FIG. 3 is a view of the detail in FIG. 2 from below,
  • FIGS. 4 and 5 illustrate the manner in which the mattress frame functions by showing two different positions
  • FIG. 6 is another constructional detail.
  • the mattress frame is a box frame generally indicated by 1 with a bottom formed by transverse wooden slats, of the kind known as laminated wood springs 2, suspended in any desired manner but preferably as described in UK Patent Specification No. 1,257,657, between the longitudinal side members 3 and 4 of the box frame 1.
  • the frame 1 is divided into two parts la and 1b (FIG. 3), which are hingeably connected together for relative tilting movement about an axis A-A.
  • each longitudinal member 3 and 4 of part 1b of the frame is a-supporting element in the form of a roller which fits into a correspondingly shaped holder on the chassis, not shown, of the reclining chair.
  • the other part lla of the frame may be fitted on each side with a pin 6 (FIG. II) for slidably engaging a horizontal slot in the inner surface of a chassis member facing the longitudinal members 3 and 4.
  • the frame 1 could be mounted on the chassis in some other way (for instance by a pair of pins 6 and an arrangement for supporting the feet in a raised position) provided that one of the support means allows for the longitudinal displacement which occurs when the two parts 3 and 4- are relatively hingeably tilted or folded.
  • a locking device constructed in a manner illustrated in FIGS. 2 and 3 is associated with the hinge between the two parts of the longitudinal members 3 and 4 of the frame.
  • the two parts of the longitudinal side members 3 and 4 are connected by two hinges 8 (FIG. 2) for relative tilting movement about the axis A-A.
  • hinges 8 FIG. 2
  • several arresting plates 9a and 9b are attached alternately by pins 12 to the insides of two U-shaped metal sections a and 10b so that each arresting plate 9a attached to the section 10a projects into the space separating two arresting plates 9b. in the cooperating section.
  • the hinge pins 8 pass through all the arresting plates 9a and 9b and their plates can thus be relatively rotatedtogether with the parts 1a and lb of the frame to which they belong.
  • all the arresting plates 9a on the one hand and all the arresting plates 9b on the other hand form rigid assemblies attached to the sections 10a and 10b by the pins l2.
  • Holes 14 (FIG. 6) in the plates serve for the reception of the hinge pin 8 (FIG. 3) to permit the two groups of arresting plates 9a and 9b to be relatively rotated.
  • the recesses 13 are located on circular arcs about the axis of the hinge (i.e., the axis of all the holes 14).
  • a locking pawl 15 (of. FIGS. 4/5) is fast on a shaft 16 pivotally mounted adjacent to the bottom edge of the U-shaped section 100, theend of the pawl 15 being formed with an upwardly pointing locking tooth 17.
  • the pawl 15 and its shaft 16 are so located that the locking tooth I7 is situated below the recesses 13 (FIG. 6) when the two parts la and lb of the frame are relatively tilted.
  • a spring is arranged to urge the locking tooth of the pawl into engagement with one of these recesses.
  • the shaft 16 extends across the width of the frame 1 and is common to both of the pawls.
  • the shaft can be easily inserted into appropraite holes and also replaced and can be secured in working position by a pin 18 (FIG. 3) which engages a longitudinal slot and a hole extending at right angles thereto.
  • the pin 18 is itself prevented from falling out by an elastic push-on sleeve 19.
  • Each pawl 15 is rigidly connected to an actuating arm 20 which is loaded by a spring 21 schematically indicated in FIG. 2 of the drawing.
  • the lever carries a metal friction plate 22 which can be pulled by means of a strap loop 23 into the peripheral groove 24a of a friction roller 24 and jammed in position. Since the peripheral groove 24a has a cross section which inwardly narrows, the friction plate 22 can be wedged in the roller groove simply by pulling the strap loop upwards as indicated by an arrow 25. In the resultant position of the. arm 20 the locking tooth 17 is not in engagement (cf. FIG. 5) and the two parts of the frame can freely swing about their interconnecting hinge.
  • the two parts la and 1b of the frame will be locked together in their fully extended flat position (FIG. 1). If the reclining person wishes to sit up, for instance in order to read, he ,or she need merely pull up the strap 23, causing the locking tooth 17 to be withdrawn from the corresponding recess 13. The two parts of the frame are then no longer interlocked and the desired relatively angled position can be selected simply by suitably shifting the weight of the body. When the strap loop 23 is released the locking tooth 17 is urged by the spring 21 to engage the recess with which it happens to register and the frame will be locked in the corresponding angular position.
  • the frame can be locked in three different angular positions.
  • the snap engagement of the locking tooth 17 occurs whenever the recesses 13 of the'two groups of arresting plates 9a and 9b are in alignment.
  • the correct locking position can be easily found by slightly rocking the two parts of the frame.
  • each locking pawl 15 is formed on its underside with a ramp 26 which in the locking position shown in FIG. 5 is slightly further away from the hinge 8 than corresponds to the distance marked 1 in FIG. 4 between the hinge 8 and the surface 27 of the bottom web of the U-section.
  • each arresting plate 9a/9b is a little larger than the other teeth between the recesses 13. This ensures that when the frame is in the free floating position and the friction plate has been jammed as in FIG. 5, the locking tooth 17 of the locking pawl will strike the tooth 29 when a minimum angle a between the two parts of the frame has been reached and thus prevent a further inadmissible and undesirable folding of the frame.
  • the described arrangement combines the advantages of being effortlessly operated, of automatically locking itself in the fully extended position, and of employing a mechanism which is uncomplicated and well secreted.
  • an under mattress for reclining furniture having a frame which is pivotally mounted in side portions of the reclining furniture and is subdivided into at least two sections which are relatively pivotable about an axis transverse to the longitudinal axis of the reclining furniture, the angular position of the two sections being lockable by a stop means operable by a person resting on the under mattress in a substantially horizontal stop position and at least one other stop position, the improvement wherein: said stop means comprises locking devices provided on each side of said frame at the ends of each section thereof adjacent to said pivoting axis,
  • each device comprising a plurality of parallel spacedapart arresting plates forming an assembly rigidly attached to its associated section of said frame, edges of said plates in each assembly being formed with a plurality of relatively aligned recesses, with leading portions of the corresponding assemblies of the two locking devices attached to the adjoining sections of said frame interdigitating on each side of said frame, whereby the assemblies fonning each pair of interdigitated assemblies are relatively turnable when the two sections of said frame are relatively tilted, there being provided adjacent to the recessed edges of at least one pair of interdigitated assemblies a locking pawl which is manually tiltable about a pivot and having a locking tooth which points towards the recesses in said arresting plates, said pawl being resiliently urged into locking engagement with said recesses, the end of said pawl remote from its locking tooth being attached to a member which is 'adapted to be frictionally retained by a retaining elesections of the frame together.
  • an under mattress for reclining furniture having a frame which is pivotally mounted in side portions of the reclining furniture and is subdivided into at least two. sections which are relatively pivotable about an axis trnsverse to the longitudinal axis of the reclining furniture, the angular position of the two sections being lockable by a stop means operable by a person resting on the under mattress in a substantially horizontal stop position and at least one other stop position, the improvement wherein: said stop means comprises locking devices provided on each side of said frame at the ends of each section thereof adjacent to said pivoting axis,
  • each locking device comprising a plurality of parallel spaced-apart arresting plates forming an assembly rigidly attached to its associated section of said frame, edges of said plates in each assembly being formed with a plurality of relatively aligned recesses, with leading portions of the corresponding assemblies of the two locking devices attached to the adjoining sections of said frame interdigitating on each side of said frame, whereby the assemblies forming each pair of interdigitated assemblies are relatively turnable when the two sections of said frame are relatively tilted, there being provided adjacent to the recessed edges of at least one pair of interdigitated assemblies a locking pawl which is manually tiltable about a pivot and having a locking tooth which points towards the recesses in said arresting plates, said pawl being resiliently urged into locking engagement with said recesses, the end of said pawl remote from its locking tooth being attached to a member which is adapted to be frictionally retained by a retaining element on a longitudinal side member of said frame to thereby maintain said locking pawl of engagement with said recesses, said locking pawl

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
US00415556A 1968-04-19 1973-11-14 Under mattress for reclining furniture Expired - Lifetime US3854154A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH580268A CH492430A (de) 1968-04-19 1968-04-19 Untermatratze für Liegemöbel
CH1664372A CH557663A (de) 1968-04-19 1972-11-15 Untermatratze fuer liegemoebel.

Publications (1)

Publication Number Publication Date
US3854154A true US3854154A (en) 1974-12-17

Family

ID=25698394

Family Applications (1)

Application Number Title Priority Date Filing Date
US00415556A Expired - Lifetime US3854154A (en) 1968-04-19 1973-11-14 Under mattress for reclining furniture

Country Status (6)

Country Link
US (1) US3854154A (de)
AT (1) AT318171B (de)
BE (1) BE807211R (de)
CH (1) CH557663A (de)
GB (1) GB1417308A (de)
SE (1) SE384126B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974530A (en) * 1974-05-11 1976-08-17 Ferdinant Lusch Kg Adjustable bed
US4251891A (en) * 1977-11-15 1981-02-24 Marpal Ag Under mattresses for bed furniture
US5678264A (en) * 1993-04-08 1997-10-21 Comfort & Care Limited Recliner
US5829075A (en) * 1996-12-13 1998-11-03 Ark-Ell Springs, Incorporated Adjustable foundation for use with a bed frame
US10232504B1 (en) * 2017-08-22 2019-03-19 Whiteside Mfg. Co. Creeper with adjustable headrest
US11178974B2 (en) * 2019-01-07 2021-11-23 Nisco Co., Ltd Foldable connection mechanism and adjustable bed system therewith

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390178B (de) * 1983-02-02 1990-03-26 Wittmann Franz Verstellbares liegemoebel, insbesondere bett
DE9213403U1 (de) * 1992-10-06 1993-05-06 Neumann, Hans-Joachim, 8949 Stetten Liegefläche eines Schlafsystems
AT2180U1 (de) * 1998-02-23 1998-06-25 Optimo Holz Und Drahtbearbeitu Gelenkbeschlag für fussteile von lattenrosten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140896A (en) * 1962-08-16 1964-07-14 Cox Of Watford Ltd Seat structures
US3206268A (en) * 1962-01-22 1965-09-14 Hamilton Mfg Co Student drafting table
US3283342A (en) * 1963-11-06 1966-11-08 Jean Pankert S A Ets Relaxation couch
US3581320A (en) * 1968-04-19 1971-06-01 Marpal Ag Under mattress for reclining furniture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206268A (en) * 1962-01-22 1965-09-14 Hamilton Mfg Co Student drafting table
US3140896A (en) * 1962-08-16 1964-07-14 Cox Of Watford Ltd Seat structures
US3283342A (en) * 1963-11-06 1966-11-08 Jean Pankert S A Ets Relaxation couch
US3581320A (en) * 1968-04-19 1971-06-01 Marpal Ag Under mattress for reclining furniture
GB1257657A (de) * 1968-04-19 1971-12-22

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974530A (en) * 1974-05-11 1976-08-17 Ferdinant Lusch Kg Adjustable bed
US4251891A (en) * 1977-11-15 1981-02-24 Marpal Ag Under mattresses for bed furniture
US5678264A (en) * 1993-04-08 1997-10-21 Comfort & Care Limited Recliner
US5829075A (en) * 1996-12-13 1998-11-03 Ark-Ell Springs, Incorporated Adjustable foundation for use with a bed frame
US10232504B1 (en) * 2017-08-22 2019-03-19 Whiteside Mfg. Co. Creeper with adjustable headrest
US11178974B2 (en) * 2019-01-07 2021-11-23 Nisco Co., Ltd Foldable connection mechanism and adjustable bed system therewith

Also Published As

Publication number Publication date
AT318171B (de) 1974-09-25
GB1417308A (en) 1975-12-10
CH557663A (de) 1975-01-15
DE2355251B2 (de) 1976-07-08
BE807211R (fr) 1974-03-01
SE384126B (sv) 1976-04-26
DE2355251A1 (de) 1974-05-22

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