U.S. patent application number 17/165020 was filed with the patent office on 2022-08-04 for folding bed frame.
This patent application is currently assigned to Zenithen USA LLC d/b/a Z Company, Zenithen USA LLC d/b/a Z Company. The applicant listed for this patent is Zenithen USA LLC d/b/a Z Company, Zenithen USA LLC d/b/a Z Company. Invention is credited to Andrew David Frankel, Shi-Ping Zheng, Tian-Xia Zheng.
Application Number | 20220240684 17/165020 |
Document ID | / |
Family ID | 1000005522076 |
Filed Date | 2022-08-04 |
United States Patent
Application |
20220240684 |
Kind Code |
A1 |
Frankel; Andrew David ; et
al. |
August 4, 2022 |
FOLDING BED FRAME
Abstract
A folding bed frame includes four vertical faces: two ends and
two sides. Each face is formed by two slanting bars that are cross
hinged together. The upper and lower ends of adjacent slanting bar
sets are hinged together to form the whole frame structure. The two
vertical faces are corresponding or symmetric, and each includes
two sets of slanting bar sets that are hinged through to middle
sections of the upper and lower angle plates. There is a vertical
rod part on the cross-hinging point of each set of slanting bar
set, and its movable position is set by a slide bushing. There is a
barrier that is on the cross-hinging point of one of the slanting
bars. The barrier can contact the upper part vertical bar, and form
two support points with the slide bushing for the vertical bar
part.
Inventors: |
Frankel; Andrew David;
(Yorba Linda, CA) ; Zheng; Shi-Ping; (Fuzhou,
CN) ; Zheng; Tian-Xia; (Fuzhou, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Zenithen USA LLC d/b/a Z Company |
Upland |
CA |
US |
|
|
Assignee: |
Zenithen USA LLC d/b/a Z
Company
|
Family ID: |
1000005522076 |
Appl. No.: |
17/165020 |
Filed: |
February 2, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A47C 17/74 20130101;
A47C 17/72 20130101 |
International
Class: |
A47C 17/72 20060101
A47C017/72; A47C 17/74 20060101 A47C017/74 |
Claims
1. A folding bed frame comprising: four vertical faces: two ends
and two sides; each face is formed by two slanting bars that are
cross hinged together; the upper and lower ends of adjacent
slanting bar sets are hinged together to form the whole frame
structure; the two vertical faces are corresponding or symmetric,
and each includes two sets of slanting bar sets that are hinged
through to middle sections of the upper and lower angle plates; a
vertical rod part on the cross hinging point of each set of
slanting bar set, and its movable position is set by a slide
bushing; between the two crossed slanting bars, the bar that is
close to the vertical bar is the primary slanting bar, and the bar
that is far from the vertical bar is the secondary slanting bar;
the upper end of the aforementioned vertical bar part is connected
to a connection plate; a horizontal bar is hinged to each of the
two horizontal directions of the connection plate; the other end of
each horizontal bar is hinged to the upper angle plate of the
vertical face of the same side; a barrier that is fixed on the
cross hinging point of the primary slanting bar; the barrier can
contact the upper part aforementioned vertical bar, and form two
support points with the aforementioned slide bushing for the
vertical bar part.
2. The folding bed frame of claim 1, wherein the barrier forms an
inverse L-shaped or U-shaped structure; the two ends are riveted on
the surface of the primary slanting bar; an upward arch can contact
the upper part of the vertical bar.
3. The folding bed frame of claim, wherein one side of the barrier
contacts the upper part of the vertical bar part, while the other
side contacts the secondary slanting bar; the lower part facing the
secondary slanting bar has a thickened step section, and when the
frame is in open position, the step section can support the lower
side of the secondary slanting bar.
4. The folding bed frame of claim 3, wherein is the barrier is
molded with plastic; the thickness direction has reinforcing ribs,
and the length direction has embedded metal bars; the length of the
aforementioned metal bars crosses over the vertical bar part and
the secondary bar.
5. The folding bed frame of claim 4, wherein the cross section of
the barrier is a rectangular "U shaped with the opening facing
downward; and wherein the metal bars are embedded through the
opening and are riveted by two rivets on the barrier step section
to form a thickened section facing downwardly.
Description
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
[0001] This invention is to folding furniture. Specifically, it
refers to an improvement for folding bed frame.
2. DESCRIPTION OF THE PRIOR ART
Technical Background
[0002] Current camp beds evolved from folding chairs. Their
structures include a bed fabric and frame. For example, Chinese
patent CN02228784.1 provides a type of camp bed with a frame
relationship as shown in FIG. 8. It is divided into four vertical
faces: two heads (as conventionally called) and two sides. Each
face is formed by two slanting bars that are cross-hinged together.
The upper and lower ends of adjacent slanting bar sets are hinged
together to form the whole frame structure. The two side-vertical
faces are symmetric, and each is formed by two sets of slanting
bars cross-hinged at the upper and lower angle plates. There is a
movable positioning vertical bar part at the cross-hinging point of
each set of slanting bars. The upper end of the vertical bar part
is connected to a connection plate. A horizontal bar is hinged to
each of the two horizontal directions of the connection plate. The
other end of each horizontal bar is hinged to the upper angle plate
of the vertical face of the same side. The horizontal bars of the
two side vertical faces form a balance to support the bed fabric.
The configuration of the two side horizontal bars allows the bed
fabric to be flatter. It also resolves the problem with the bed
fabric between the two crossed bars of the slanting bar sets
sagging when bearing weight. However, when the bed fabric bears
weight, the four horizontal bars are pulled by the inward
stretching force, thus causing the connection plate location to
have significant inward retraction and deformation, which affects
sleeping comfort. The objective of this invention is to promote
even support of the bed fabric.
[0003] None of the above inventions and patents, taken either
singly or in combination, is seen to describe the instant invention
as claimed.
SUMMARY OF THE INVENTION
[0004] A primary goal of this invention is to provide a folding bed
frame that can prevent the upper section of the vertical bar from
retracting inwardly.
[0005] The technical proposal of the invention is achieved in one
or more of the following ways:
[0006] A bed frame is provided that includes four vertical faces:
two ends and two sides. Each face is formed by two slanting bars
that are cross hinged together. The upper and lower ends of
adjacent slanting bar sets are hinged together to form the whole
frame structure. The two vertical faces are corresponding or
symmetric, and each includes two sets of slanting bar sets that are
hinged through to middle sections of the upper and lower angle
plates. There is a vertical rod part on the cross-hinging point of
each set of slanting bar set, and its movable position is set by a
slide bushing. Between the two crossed-slanting bars, the bar that
is close to the vertical bar is the primary slanting bar, and the
bar that is far from the vertical bar is the secondary slanting
bar. The upper end of the vertical bar part is connected to a
connection plate. A horizontal bar is hinged to each of the two
horizontal directions of the connection plate. The other end of
each horizontal bar is hinged to the upper angle plate of the
vertical face of the same side. It is characterized by a barrier
that is fixed on the cross hinging point of the primary slanting
bar. The barrier can contact the upper part aforementioned vertical
bar, and form two support points with the aforementioned slide
bushing for the vertical bar part.
[0007] The barrier forms an inverse L-shaped or U-shaped structure.
The two ends are riveted on the surface of the primary slanting
bar. Its upward arch can contact the upper part of the vertical
bar.
[0008] One side of the barrier contacts the upper part of the
vertical bar part, while the other side contacts the secondary
slanting bar. The lower part facing the secondary slanting bar has
a thickened step section. When the frame is in open position, the
aforementioned step section can support the lower side of the
secondary slanting bar.
[0009] The barrier is molded with plastic. The thickness direction
has reinforcing ribs, and the length direction has embedded metal
bars. The length of the metal bars crosses over the vertical bar
part and the secondary bar.
[0010] The cross section of the barrier is a rectangular ".PI."
with the opening facing downwardly. After the metal bars are
embedded through the opening, they are riveted by two rivets on the
barrier step section to form a thickened section facing down.
[0011] This invention uses the barrier on the slanting bars to
enhance horizontal support for the vertical bars, from a
traditional, single-point support by slide bushing to two-point
support. This can effectively prevent a defect of the upper part of
a vertical bar retracting inwardly due to weight. In addition, the
inner side of the barrier is supported by the other slanting bar of
the slanting bar set. This enhances the connectivity between the
two slanting bars of a slanting bar set, as well as increase the
support for the vertical bar part.
[0012] These and other objects of the present invention will be
readily apparent upon review of the following detailed description
of the invention and the accompanying drawings. These objects of
the present invention are not exhaustive and are not to be
construed as limiting
[0013] the scope of the claimed invention. Further, it must be
understood that no one embodiment of the present invention need
include all of the aforementioned objects of the present invention.
Rather, a given embodiment may include one or none of the
aforementioned objects. Accordingly, these objects are not to be
used to limit the scope of the claims of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 is an illustration of the folding bed frame.
[0015] FIG. 2 shows a zoomed image of selection A from FIG. 1.
[0016] FIG. 1 is an illustration of the upward view of the folding
bed frame.
[0017] FIG. 4 shows a zoomed image of selection B from FIG. 3.
[0018] FIG. 5 is an illustration of the side view of the folding
bed frame.
[0019] FIG. 6 illustrates a detailed illustration of the
barrier.
[0020] FIG. 7 is an illustration of the folded state of the folding
bed frame.
[0021] FIG. 8 is an illustration of existing technology.
[0022] Similar reference characters denote corresponding features
consistently throughout the attached drawings. Namely, in the
drawings the following reference numbers refer to the following
part: [0023] 1-slanting bar set [0024] 11-primary slanting bar
[0025] 12--secondary slanting bar [0026] 2-upper angle plate [0027]
3-lower angle plate [0028] 4-slide bushing [0029] 5-vertical bar
[0030] 51-connection plate [0031] 52-horizontal bar [0032]
6-barrier [0033] 61-upward arch [0034] 62-step section [0035]
63-thickened section [0036] 64-reinforcing rib [0037] 65-metal bar
[0038] X-vertical faces of the two ends [0039] Y-vertical faces of
the two sides
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)
[0040] Referring to FIGS. 1 to 7, a folding bed frame is shown that
includes four vertical faces: two ends and two sides, as seen in
the vertical faces of the two ends X and the vertical faces of the
two sides Y. Each vertical face has a slanting bar set 1 that is
formed by two slanting bars that are cross-hinged together. The
upper and lower ends of adjacent slanting bar sets are hinged
together to form the whole frame structure. In other words, the
upper and lower ends of the slanting bars are hinged to the upper
angle plate 2 and the lower angle plate 3 to form a whole connected
frame structure.
[0041] The two vertical faces are corresponding or symmetric, and
each includes two slanting bars sets 1 that are hinged through to
middle sections of the upper and lower angle plates 2 and 3. There
is a vertical rod part on the cross-hinging point of each set of
slanting bar set 1, and its movable position is set by a slide
bushing 4. For accurate description and convenient differentiation,
between the two crossed slanting bars, the bar that is close to the
vertical bar 5 is the primary slanting bar 11, and the bar that is
far from the vertical bar is the secondary slanting bar 12. The
upper end of the vertical bar 5 is connected to a connection plate
51. A horizontal bar 52 is hinged to each of the two horizontal
directions of the connection plate 51. The other end of each
horizontal bar 52 is hinged to the upper angle plate 3 of the
vertical face of the same side. The horizontal bar 52 parallel to
the vertical faces of the two sides Y tightly stretches the bed
fabric. This is the current technology section. Because the
vertical bar 5 solely relies on slide bushing 4 for positioning,
when the bed fabric bears weight, the horizontal force causes the
upper section of vertical bar 5 to retract inward and the bed
fabric to become loose. The following structure is used to resolve
this problem.
[0042] There is a barrier 6 that is fixed on the cross-hinging
point of the primary slanting bar 11. The barrier 6 can contact the
upper part vertical bar 5, and form two support points with the
slide bushing 4 for the vertical bar part. More specifically,
barrier 6 forms an inverse L-shaped or U-shaped structure. The two
ends are riveted on the surface of the primary slanting bar 11. Its
upward arch 61 can contact the upper part of the vertical bar 5.
Here, barrier 6 forming an inverse L-shaped or U-shaped structure
is just a figurative expression. It can resemble an inverse
triangle, an inverse V-shaped, or a curve.
[0043] Furthermore, one side of the barrier 6 contacts the upper
part of the vertical bar part 5, while the other side contacts the
secondary slanting bar 12. The lower part facing the secondary
slanting bar 12 has a thickened step section 62. When the frame is
in open position, the step section 62 can support the lower side of
the secondary slanting bar 12 and form a connected and
weight-bearing support. In addition, barrier 6 also leverages its
interconnection with the secondary slanting bar 12 to obtain
support on the back side and enhance the ability of the upward arch
61 to withstand inward retraction. The position of barrier 6
occupies the spaces between the vertical bar 5 and the secondary
slanting bar 12. Also, the step section 62 forms the thickened
section 63 in the lower section, and it occupies the space in the
primary slanting bar 11 when folded and the secondary slanting bar
12 when opened, as shown in FIG. 7.
[0044] As shown in FIG. 6 and FIG. 7, the barrier 5 is ideally an
inverse L-shape. This guarantees a higher upper arch 61, and a
longer flat straight edge that enhances the support for the
secondary slanting bar 12 as well as obtain support from the
secondary bar. The barrier 6 is molded with plastic. The thickness
direction has reinforcing ribs 64, and the length direction has
embedded metal bars 65. The length of the metal bars 65 crosses
over the vertical bar 5 and the secondary bar 12. This increases
the strength of the barrier 6 that is molded with plastic and
decreases friction between metal. The cross-section of the barrier
6 is a rectangular ".PI." with the opening facing downward. After
the metal bars 65 are embedded through the opening, they are
riveted by two rivets on the barrier step section to form a
thickened section 63 facing downwardly. This has the benefits of
reinforcing the thick area while allowing the thin area does not
occupy extra space.
[0045] While this invention has been described as having a
preferred design, it is understood that it is capable of further
modifications, uses and/or adaptations of the invention following
in general the principle of the invention and including such
departures from the present disclosure as come within the known or
customary practice in the art to which the invention pertains and
as maybe applied to the central features hereinbefore set forth,
and fall within the scope of the invention and the limits of the
appended claims. It is therefore to be understood that the present
invention is not limited to the sole embodiment described above,
but encompasses any and all embodiments within the scope of the
following claims.
* * * * *