US2550224A - Adjustable bed - Google Patents

Adjustable bed Download PDF

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US2550224A
US2550224A US772863A US77286347A US2550224A US 2550224 A US2550224 A US 2550224A US 772863 A US772863 A US 772863A US 77286347 A US77286347 A US 77286347A US 2550224 A US2550224 A US 2550224A
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rails
side rails
arms
secured
plates
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US772863A
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Leonard F Clerc
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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
    • A47C19/00—Bedsteads
    • A47C19/04—Extensible bedsteads, e.g. with adjustment of length, width, height

Definitions

  • This invention relates to household furniture
  • Another object of the invention is the provision of a bed frame which is constructed and arranged sothat its length and width may be adjusted to accommodate various requirements of use.
  • a further object of the invention is the provision of a bed frame which is provided with improved legs and means for attaching the same.
  • Another object of the invention is the provision of a bed frame which is constructed and arranged in such manner so that it is possible to eliminate the slats conventionally used to hold up the bed spring.
  • a further object of the invention is the provision of an adjustable bed frame which is provided with means for securing the frame in different positions of adjustment.
  • Another object of the invention is the provision of a bed frame unit having legs attached thereto, which may be adjusted to any desired height.
  • a further object of the invention is the provision of a standardized, adjustable, bed frame unit which is constructed and arranged so as to obviate the necessity of a dealer stocking a variety of different sizes.
  • Fig. 6 is a section taken substantially on the line 6--B of Fig. 5.
  • Fig. 7 is a section taken substantially on the line 'l! of Fig. 4. a
  • Fig. 8 is a section taken substantially on the line 8-8 of Fig. 3.
  • Fig. 9 is a section taken substantially on the line 99 of Fig. 8.
  • Fig. 10 is an enlarged fragmentary detail of one of the hinged side rails showing an improved abutting mechanism for strengthening the hinged sections.
  • Fig. 11 is a view similar to Fig. 10, but showing the abutment members in spaced relation.
  • Fig. 3 is a plan view of a still further modified form of the device embodying the invention.
  • Fig. 4 is a plan view of another modified form of the device embodying theinvention.
  • Fig. 12 is a top plan view taken substantially on the line I2I2 of Fig. 10.
  • Fig. 13 is a side elevation of the structure shown in Fig. 3 with the legs removed and with the left one-half of the frame being folded under the right one-half.
  • Fig. 14 is an enlarged fragmentary detail in elevation of one of the adjustable feet shown in Fig. 8.
  • Fig. 15 is a plan view taken on the line l5-I5 of Fig. 14.
  • Fig. 16 is a section taken on the line l6-l6 of Fig. 14. b
  • Fig. 17 is a section taken on the line l'l--l1 of Fig. 1.
  • my improved bed frame (Fig. 1) consists in general of a pair of side rails 2
  • and 22 are longitudinally slotted, asat 2 3 and 24, to accommodate bolts 25,
  • Wing nuts 29 are positioned on the lower ends of the bolts 25 and 26 so that the extension rails 21 and 28 may be secured in pre- 7 determined position to the side rails 2
  • the side rails 2i and 22 have inverted L- shaped members 30 secured thereto to provide guides and thrust members to prevent the displacement of the extension rails 2? and 2:8 from the side rails 2
  • end rails are comparatively short, and are formed by cutting and inturning the ends of the side rails 2
  • Each of the bed frames is provided at each corner with an adjustable leg 35 (Figs. 8 and 14) which are secured to the side rails and end rails by means of bolts and nuts 38.
  • Each of the structures illustrated in Figs. 1, 2, 3, and 5 is provided with additional legs 35A which serve to support the linkage between the'side rails 2
  • and 22, and the extension rails 2'! and 28 are hingedly secured together by means of arms 31, 3B, 39, and 38, which are pivoted at their respective ends, as at M, to angle plates 42 which are welded or otherwise suitably secured to the end rails 3
  • the arms 31, 38, 38 and G are each slotted, as at 5, to accommodate a bolt 46 which extends through a slot 4'! formed in the secondary arms 1 4? which are pivoted respectively at one end, to lugs 49 secured to each side rail 2
  • Each of the bolts 48 has a wing nut at the end thereof so that the pivoted arms just described may be locked to each other in predetermined positions of adjustment.
  • Leveler blocks 58 are provided on the side rails 2
  • the arms 52, 53 and 54 are each pivoted at one end to anchor plates 55 secured by welding or other suitable means at the juncture of the side rails 2
  • , 52, 53 and 54 are also pivoted at their opposite ends to linkage plates 55, and are provided with cooperating teeth 5? which frictionally engage one another and serve as means to help hold the arms 5
  • , 52, 58 and 54 may be locked to the plates 55 by means of wing nuts 55A. 7 In Fig.
  • are pivoted, as at 62, to the linkage plates 83 and 54, and are adjustably bolted, as at 85, to slotted anchor plates 56.
  • and 22 are split, as at El, and are provided on their undersides with hinges 68 whereby theside rails 2
  • Abutment blocks 69 reinforce the hinged joint when the side rails are in the position shown in Fig. 8. In Figs. 10, 11, and 1.2 I show modified forms of the abutment blocks 18.
  • the side rails H and 72 are fixed in length, but the end rails '58, M, 75 and 15 are adjustable and are provided with slots T! to accommodate bolts 18 4 which extend therethrough, and are secured by wing nuts 19.
  • the end rails 73 and T5 are provided with thrust members and guides similar to the members 31] previously described. With this structure the side rails H and 12 may be extended to the positions shown by the dotted lines in Fig. 4.
  • Fig. 5 I show a further modification in which the side rails 2
  • auxiliary arms 8! and 88 are pivoted to the end rails 3
  • and the auxiliary arms 8! and 83 are locked in predetermined position by the bolts 98 and wing nuts 9
  • the linkage plates 88 are connected by means of arms 92 and 93, which are secured to the plates 88 by means of welding, or other suitable means.
  • the leg 35 consists of a top plate 94 having holes 95 therethrough adapted to accommodate the bolts 88.
  • the leg proper comprises outer plate 96 and inner plate 97 which are curved, as shown in Fig. 16, to provide rigidity and strength.
  • the outer plate 85 is inturned, as at 98, to provide guides for the inner plate 91.
  • An adjusting screw 99 extends from the underside of the top plate 95 or" the outer plate 96 and through the inturned top portion
  • a caster me is secured to a U-shaped bracket I05 which is secured to the inner plate 91 by welding, or other suitable means.
  • An adjustable bed frame comprising a pair oi" angular side rails, extension rails slidable on said side rails, means for guiding said extension rails on said side rails, means to lock said extension rails in predetermined position on said side rails, a comparatively short end rail secured to each of said side rails and said extension rails, arms pivoted to corner plates positioned at the intersections of said end rails with said side rails and extension rails, said arms being pivoted at their opposite ends to linkage plates positioned between said side rails, and an adjustable leg a secured to each of said linkage plates and to each of said side rails and extension rails.
  • a pair of side rails each having an angular cross section, extension rails slidable on said side rails; means including alignable slots with bolts therein to lock said extension rails in r I predetermined position on said side rails, an end rail extending inwardly from each of said side rails and said extension rails, arms pivotally connected to said side rails and to rectangular plates positioned between said side rails, there being means for locking the pivotally mounted arms in predetermined position, and adjustable means including telescoping legs for supporting said rails in spaced relation with a floor.
  • a device of the character described including a pair of side rails, extensions for said side rails, and adjustable means for securing said side rails in dverent degrees of spaced relation with one another, the combination of means for supporting said side rails, said means comprising a pair of plates at one end of each rail and extension, one of which plates of each pair is slidable with reference to the other, a threaded rod for each pair of plates, each rod being secured to one plate and slidable with respect to the other plate,
  • a hinge positioned intermediate the ends of each side rail, and abutment members on each side rail adjacent its hinge, and arranged to hold the hinged parts or" said side rail in horizontal alignment.

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  • Invalid Beds And Related Equipment (AREA)

Description

p 1951 L. F. CLERC 2,55,22
ADJUSTABLE BED I Filed Sept. 8, 1947 s Sheets-Sheet 1 L. F. CLERC ADJUSTABLE BED pril 24, 191
5 Sheets-Sheet 2 Filed Sept. 8, 1947 INVENTOR. LEONARD F CLERO Aprifi 24 mm L. F. cLERc 2,550,224
ADJUSTABLE BED Filed Sept. 8, 194,7 3 Sheets-Sheet 3 ATTOR E).
Patented Apr. 24, 1951 ADJUSTABLE BED Leonard F. ciere, Detroit, Mich. Application September 8, 1947, Serial No. 772,863
This invention relates to household furniture,
a comparatively smallspace for storage or transportation.
Another object of the invention is the provision of a bed frame which is constructed and arranged sothat its length and width may be adjusted to accommodate various requirements of use.
A further object of the invention is the provision of a bed frame which is provided with improved legs and means for attaching the same.
Another object of the invention is the provision of a bed frame which is constructed and arranged in such manner so that it is possible to eliminate the slats conventionally used to hold up the bed spring.
A further object of the invention is the provision of an adjustable bed frame which is provided with means for securing the frame in different positions of adjustment.
Another object of the invention is the provision of a bed frame unit having legs attached thereto, which may be adjusted to any desired height.
A further object of the invention is the provision of a standardized, adjustable, bed frame unit which is constructed and arranged so as to obviate the necessity of a dealer stocking a variety of different sizes.
9 Claims. (C1 -149) UNlT-ED STATES PATENT OFFICE Fig. 5 is a plan view of another modified form of the'device embodying the invention.
Fig. 6 is a section taken substantially on the line 6--B of Fig. 5.
Fig. 7 is a section taken substantially on the line 'l! of Fig. 4. a
Fig. 8 is a section taken substantially on the line 8-8 of Fig. 3.
Fig. 9 is a section taken substantially on the line 99 of Fig. 8.
Fig. 10 is an enlarged fragmentary detail of one of the hinged side rails showing an improved abutting mechanism for strengthening the hinged sections.
Fig. 11 is a view similar to Fig. 10, but showing the abutment members in spaced relation.
b Fig. 3 is a plan view of a still further modified form of the device embodying the invention. Fig. 4 is a plan view of another modified form of the device embodying theinvention.
Fig. 12 is a top plan view taken substantially on the line I2I2 of Fig. 10.
Fig. 13 is a side elevation of the structure shown in Fig. 3 with the legs removed and with the left one-half of the frame being folded under the right one-half.
Fig. 14 is an enlarged fragmentary detail in elevation of one of the adjustable feet shown in Fig. 8.
Fig. 15 is a plan view taken on the line l5-I5 of Fig. 14.
Fig. 16 is a section taken on the line l6-l6 of Fig. 14. b
Fig. 17 is a section taken on the line l'l--l1 of Fig. 1.
Referring now more particularly to the drawings, it will be understood that in the embodiment herein disclosed, my improved bed frame (Fig. 1) consists in general of a pair of side rails 2| and 22 which are substantially L-shaped in cross section, and which are constructed, arranged, and secured together as herinafter described.
Each of the modified forms shown in Figs. 2, 3, 4, and 5 employ similar side rails, but utilize different means for securing them together as will appear more particularly hereinafter.
Referring again to Fig. 1, it will be understood that the side rails 2| and 22 are longitudinally slotted, asat 2 3 and 24, to accommodate bolts 25,
and 26 secured to the underside of the extension rails 21 and 28, which slidably engage the side rails 2| and '22 so that the latter may be in effect lengthened. Wing nuts 29 are positioned on the lower ends of the bolts 25 and 26 so that the extension rails 21 and 28 may be secured in pre- 7 determined position to the side rails 2| and 22.
The side rails 2i and 22 have inverted L- shaped members 30 secured thereto to provide guides and thrust members to prevent the displacement of the extension rails 2? and 2:8 from the side rails 2| and 22. g
In each of the forms shown in Figs. 1, 2, 3, and 5 short end rails 3|, 32, 33 and 34 are provided.
These end rails are comparatively short, and are formed by cutting and inturning the ends of the side rails 2| and 22 and the extension rails 2'5 and 28, or by welding, or otherwise securing the same to the ends of the side rail extensions 2'! and 28. Each of the bed frames is provided at each corner with an adjustable leg 35 (Figs. 8 and 14) which are secured to the side rails and end rails by means of bolts and nuts 38. Each of the structures illustrated in Figs. 1, 2, 3, and 5 is provided with additional legs 35A which serve to support the linkage between the'side rails 2| and 22 as hereinafter described.
The elements just described are all found in i the embodiments shown in Figs. 1, 2, 3 and 5, and function in the same manner throughout the several modified forms shown in those figures, and will therefore bear the same reference characters throughout said figures.
The side rails 2| and 22, and the extension rails 2'! and 28 (Fig. l) are hingedly secured together by means of arms 31, 3B, 39, and 38, which are pivoted at their respective ends, as at M, to angle plates 42 which are welded or otherwise suitably secured to the end rails 3|, 32, 33 and 34, and pivoted at their opposite ends, as at 63, to linkage plates 44 to the underside of each of which is secured-the leg 35A. 7
The arms 31, 38, 38 and G are each slotted, as at 5, to accommodate a bolt 46 which extends through a slot 4'! formed in the secondary arms 1 4? which are pivoted respectively at one end, to lugs 49 secured to each side rail 2| and 22 and extension rails 2! and 28. Each of the bolts 48 has a wing nut at the end thereof so that the pivoted arms just described may be locked to each other in predetermined positions of adjustment. Leveler blocks 58 are provided on the side rails 2| and 22 to compensate for differences in height and width caused'by the overlying of the side rails 2| and 22 by the extension rails 21 and 28.
In Fig. 2 the arms 52, 53 and 54 are each pivoted at one end to anchor plates 55 secured by welding or other suitable means at the juncture of the side rails 2| and 22 and the end rails 3|, 52, 33 and 34. The arms 5|, 52, 53 and 54 are also pivoted at their opposite ends to linkage plates 55, and are provided with cooperating teeth 5? which frictionally engage one another and serve as means to help hold the arms 5|, 52, 53 and 54 in predetermined adjusted position. The arms 5|, 52, 58 and 54 may be locked to the plates 55 by means of wing nuts 55A. 7 In Fig. 3 the arms 58, 59, 60 and 6| are pivoted, as at 62, to the linkage plates 83 and 54, and are adjustably bolted, as at 85, to slotted anchor plates 56. In this embodiment, the side rails 2| and 22 are split, as at El, and are provided on their undersides with hinges 68 whereby theside rails 2| and 22 may be folded in half upon the removal of the legs 35. Abutment blocks 69 reinforce the hinged joint when the side rails are in the position shown in Fig. 8. In Figs. 10, 11, and 1.2 I show modified forms of the abutment blocks 18.
In the modification shown in Fig. 4, the side rails H and 72 are fixed in length, but the end rails '58, M, 75 and 15 are adjustable and are provided with slots T! to accommodate bolts 18 4 which extend therethrough, and are secured by wing nuts 19. The end rails 73 and T5 are provided with thrust members and guides similar to the members 31] previously described. With this structure the side rails H and 12 may be extended to the positions shown by the dotted lines in Fig. 4.
In Fig. 5 I show a further modification in which the side rails 2| and 22 are pivotally secured together by means of pairs of arms 8|, 82, and 88, which are pivoted, as at 84, to the side rails, and as at to the linkage plates 86. In this embodiment auxiliary arms 8! and 88 are pivoted to the end rails 3| and 32, as at 89, and are adapted to engage bolts 90 which extend through corresponding slots formed in the arms 8|. The pairs of arms 8| and the auxiliary arms 8! and 83 are locked in predetermined position by the bolts 98 and wing nuts 9|. In this embodiment the linkage plates 88 are connected by means of arms 92 and 93, which are secured to the plates 88 by means of welding, or other suitable means.
In Figs. 14, 15, and 16 I illustrate in detail one of the leg assemblies 35. In this embodiment, the leg 35 consists of a top plate 94 having holes 95 therethrough adapted to accommodate the bolts 88. The leg proper comprises outer plate 96 and inner plate 97 which are curved, as shown in Fig. 16, to provide rigidity and strength. The outer plate 85 is inturned, as at 98, to provide guides for the inner plate 91. An adjusting screw 99 extends from the underside of the top plate 95 or" the outer plate 96 and through the inturned top portion ||l| of the inner plate 91, and lock nuts I02 and H33 are provided to lock the plates 96 and 97 in predetermined position. A caster me is secured to a U-shaped bracket I05 which is secured to the inner plate 91 by welding, or other suitable means.
Having described my invention, what I claim and desire to secure by Letters Patent is:
1. In a device of the character described, the combination of a pair of side rails, extension rails slidably secured to said side rails, each of said side rails and said extension rails having a comparatively short end rail secured'thereto, arm-s pivoted to said end rails, and to linkage plates positioned between said side rails, there being a vertically adjustable leg with telescoping sections, and locking means between the sections secured to each side rail and extension rail, and to each of said linkage plates. V
2. The combination defined in claim 1, including slotted elements and bolts therein for locking said pivotable arms in predetermined position.
3. The combination defined in claim 1, including means for locking said first-named pivoted arms in predetermined position, said last named means including secondary arms pivoted to said side rails and said extension rails, said secondary arms having slots with bolts therein adapted to cooperate with slots formed in said first-named pivoted arms, whereby, upon tightening said bolts, said arms may be held against accidental displacement.
4. An adjustable bed frame comprising a pair oi" angular side rails, extension rails slidable on said side rails, means for guiding said extension rails on said side rails, means to lock said extension rails in predetermined position on said side rails, a comparatively short end rail secured to each of said side rails and said extension rails, arms pivoted to corner plates positioned at the intersections of said end rails with said side rails and extension rails, said arms being pivoted at their opposite ends to linkage plates positioned between said side rails, and an adjustable leg a secured to each of said linkage plates and to each of said side rails and extension rails.
5. The combination defined in claim 4, including means for locking said first-named pivoted arms in predetermined position.
6. In a device of the character described, the combination of a pair of side rails, each having an angular cross section, extension rails slidable on said side rails; means including alignable slots with bolts therein to lock said extension rails in r I predetermined position on said side rails, an end rail extending inwardly from each of said side rails and said extension rails, arms pivotally connected to said side rails and to rectangular plates positioned between said side rails, there being means for locking the pivotally mounted arms in predetermined position, and adjustable means including telescoping legs for supporting said rails in spaced relation with a floor.
'7. In a device of the character described, including a pair of side rails, extensions for said side rails, and adjustable means for securing said side rails in diilerent degrees of spaced relation with one another, the combination of means for supporting said side rails, said means comprising a pair of plates at one end of each rail and extension, one of which plates of each pair is slidable with reference to the other, a threaded rod for each pair of plates, each rod being secured to one plate and slidable with respect to the other plate,
and having lock nuts thereon for securing the plates in adjusted relation to one another, and a caster secured to said one of each pair of slidable plates.
8. The combination defined in claim 7, in which said plates are curved, there being means integral with one of said plates for guiding said plates in their movement with reference to one another, and means on said fixed plate for securing the same to said side rails.
9. In a device of the character described, including pairs of adjustable side rails, and end rails, and means for supporting said pairs of rails, the combination of a hinge positioned intermediate the ends of each side rail, and abutment members on each side rail adjacent its hinge, and arranged to hold the hinged parts or" said side rail in horizontal alignment.
LEONARD F. CLEBC.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 630,140 Varcoe Aug. 1, 1899 977,671 Melander Dec. 6, 1910 1,300,533 Wessinger Apr. 15, 1919 1,305,388 Luria June 3, 1919 1,358,027 Sheldon Nov. 9, 1 920
US772863A 1947-09-08 1947-09-08 Adjustable bed Expired - Lifetime US2550224A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666931A (en) * 1949-02-23 1954-01-26 Leonard F Clerc Adjustable bedstead
US3161894A (en) * 1962-01-22 1964-12-22 Harold R Short Adjustable bed rail
US3881202A (en) * 1973-02-21 1975-05-06 Stephen Tyhanic Bed frame
US3999231A (en) * 1975-11-12 1976-12-28 Robins John A Collapsible, adjustable bed frame with adapted box springs
US6289535B1 (en) * 1999-04-28 2001-09-18 United Finishers, Inc. Mattress support and method
US6338172B1 (en) 1997-10-15 2002-01-15 Harry A. Taylor, et al. Polymeric length and width adjustable bed frame system
US6560796B1 (en) * 1999-11-12 2003-05-13 Carl J. Diforio Bed support system and method
US20060031995A1 (en) * 2004-08-16 2006-02-16 Barkhouse Ian C Collapsible mattress border construction and method
US20120246826A1 (en) * 2009-12-30 2012-10-04 Ki Ho Jin Adjustable folding bed frame
US8832876B1 (en) * 2013-05-25 2014-09-16 Zinus, Inc. Collapsible, compact mattress support
US9521910B2 (en) 2012-02-09 2016-12-20 Bruce Thornton Adjustable bed frame
US20210045538A1 (en) * 2019-08-14 2021-02-18 New-Tec Integration (Xiamen) Co., Ltd. Bed frame
US20210045537A1 (en) * 2019-08-14 2021-02-18 New-Tec Integration (Xiamen) Co., Ltd. Bed frame
US20210393040A1 (en) * 2020-06-17 2021-12-23 Nisco Co., Ltd Knockdownable bed
US20230016845A1 (en) * 2021-07-13 2023-01-19 Nantong Shunlong Physical Therapy Equipment Co., Ltd. Connecting device for push rod of bed frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US630140A (en) * 1897-05-04 1899-08-01 James Varcoe Folding bedstead.
US977671A (en) * 1910-03-16 1910-12-06 Carl F Melander Extensible bedstead.
US1300533A (en) * 1918-11-27 1919-04-15 Lon Woodram Wessinger Adjustable trunk-rack.
US1305388A (en) * 1918-10-18 1919-06-03 Adolfo Luria Combined field-cot and surgical stretcher and military knapsack.
US1358027A (en) * 1920-07-31 1920-11-09 Ray W Sheldon Folding and telescoping bed

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US630140A (en) * 1897-05-04 1899-08-01 James Varcoe Folding bedstead.
US977671A (en) * 1910-03-16 1910-12-06 Carl F Melander Extensible bedstead.
US1305388A (en) * 1918-10-18 1919-06-03 Adolfo Luria Combined field-cot and surgical stretcher and military knapsack.
US1300533A (en) * 1918-11-27 1919-04-15 Lon Woodram Wessinger Adjustable trunk-rack.
US1358027A (en) * 1920-07-31 1920-11-09 Ray W Sheldon Folding and telescoping bed

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666931A (en) * 1949-02-23 1954-01-26 Leonard F Clerc Adjustable bedstead
US3161894A (en) * 1962-01-22 1964-12-22 Harold R Short Adjustable bed rail
US3881202A (en) * 1973-02-21 1975-05-06 Stephen Tyhanic Bed frame
US3999231A (en) * 1975-11-12 1976-12-28 Robins John A Collapsible, adjustable bed frame with adapted box springs
US6338172B1 (en) 1997-10-15 2002-01-15 Harry A. Taylor, et al. Polymeric length and width adjustable bed frame system
US6289535B1 (en) * 1999-04-28 2001-09-18 United Finishers, Inc. Mattress support and method
US6560796B1 (en) * 1999-11-12 2003-05-13 Carl J. Diforio Bed support system and method
US20060031995A1 (en) * 2004-08-16 2006-02-16 Barkhouse Ian C Collapsible mattress border construction and method
US9131779B2 (en) 2009-03-17 2015-09-15 Ki Ho Jin Foldable bed frame
US20120246826A1 (en) * 2009-12-30 2012-10-04 Ki Ho Jin Adjustable folding bed frame
US8707478B2 (en) * 2009-12-30 2014-04-29 Ki Ho Jin Adjustable folding bed frame
US9521910B2 (en) 2012-02-09 2016-12-20 Bruce Thornton Adjustable bed frame
US8832876B1 (en) * 2013-05-25 2014-09-16 Zinus, Inc. Collapsible, compact mattress support
US9492017B2 (en) 2013-05-25 2016-11-15 Zinus Inc. Collapsible, compact mattress support
US20210045538A1 (en) * 2019-08-14 2021-02-18 New-Tec Integration (Xiamen) Co., Ltd. Bed frame
US20210045537A1 (en) * 2019-08-14 2021-02-18 New-Tec Integration (Xiamen) Co., Ltd. Bed frame
US11617448B2 (en) * 2019-08-14 2023-04-04 New-Tec Integration (Xiamen) Co., Ltd. Bed frame
US12011093B2 (en) * 2019-08-14 2024-06-18 New-Tec Integration (Xiamen) Co., Ltd. Bed frame
US20210393040A1 (en) * 2020-06-17 2021-12-23 Nisco Co., Ltd Knockdownable bed
US20230016845A1 (en) * 2021-07-13 2023-01-19 Nantong Shunlong Physical Therapy Equipment Co., Ltd. Connecting device for push rod of bed frame

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