U.S. patent number 3,855,654 [Application Number 05/385,172] was granted by the patent office on 1974-12-24 for storable bed rail.
This patent grant is currently assigned to Invacare Corporation. Invention is credited to William J. Pivacek.
United States Patent |
3,855,654 |
Pivacek |
December 24, 1974 |
STORABLE BED RAIL
Abstract
A safety bed rail assembly for beds including a bed rail movable
from an upright guarding position along one side of a bed to a
stored position beneath the bed. The bed rail assembly includes at
least one collapsible bed rail and a pair of support members for
the bed rail adapted to be mounted beneath the bed to extend
transversely thereof. Pivotal connecting means extends between the
bed rail and the support means and is pivotally connected to each
for pivotal movement in a horizontal plane parallel to the bed. The
bed rail is thereby swingable in a collapsed or lowered condition
from a first position alongside the bed to a second or stored
position beneath the bed.
Inventors: |
Pivacek; William J. (Elyria,
OH) |
Assignee: |
Invacare Corporation (Elyria,
OH)
|
Family
ID: |
23520324 |
Appl.
No.: |
05/385,172 |
Filed: |
August 2, 1973 |
Current U.S.
Class: |
5/429; 5/100 |
Current CPC
Class: |
A61G
7/0509 (20161101); A61G 7/0507 (20130101) |
Current International
Class: |
A47C
21/08 (20060101); A47C 21/00 (20060101); A47c
021/00 () |
Field of
Search: |
;5/100,331 ;256/22
;297/417 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Nunberg; Casmir A.
Attorney, Agent or Firm: Bosworth, Sessions & McCoy
Claims
What is claimed is:
1. A bed rail assembly for beds comprising a bed rail movable from
an upright position to a lowered position, support means for said
bed rail adapted to be mounted on a bed frame, said support means
being spaced from said bed rail in a direction transverse to the
plane of the bed rail, and means extending between said bed rail
and said support means and pivotally connected to each for
permitting swinging movement of said bed rail toward said support
means, whereby said bed rail is swingable in a plane generally
perpendicular to the plane of the bed rail from a first position to
a second position spaced from said first position in the direction
of said support means.
2. A bed rail assembly as claimed in claim 1 wherein said bed rail
is collapsible from said upright position to said lowered
position.
3. A bed rail assembly as claimed in claim 1 including means for
locking said bed rail in said first position.
4. A bed rail assembly as claimed in claim 1 including a second bed
rail spaced from said first bed rail and substantially parallel
thereto, and means extending between said second bed rail and said
support means and pivotally connected to each for permitting
swinging movement of said second bed rail toward said support
means.
5. A bed rail assembly as claimed in claim 2 wherein said bed rail
includes a pair of upright end posts, a lower support rail
extending between said upright end posts and pivotally connected to
each at the lower ends thereof, a variable length support rail
extending between said upright end posts and pivotally connected to
each above said lower support rail, whereby said bed rail is
collapsible to a storing condition, and means for locking said bed
rail in said upright position.
6. A bed rail assembly as claimed in claim 1 wherein said support
means are provided at spaced locations and said means for
permitting swinging movement of said bed rail toward said support
means includes a pair of pivot assemblies, each assembly including
a pivot arm, means pivotally connecting one end of said arm to said
bed rail and means pivotally connecting the other end of said arm
to one of said support means.
7. A bed rail assembly as claimed in claim 6 wherein said means
pivotally connecting one end of said arm to said bed rail includes
a support tube mounted on said bed rail and a pivot sleeve
connected to said pivot arm, said sleeve fitting over said support
tube and being rotatable with respect thereto.
8. A bed rail assembly as claimed in claim 6 wherein said bed rail
includes a pair of upright end posts and is collapsible from said
upright to said lowered position and including locking means for
locking said rail in said upright position, said locking means
including a locking pin carried by one of said end posts, a hole in
one of said support tubes adjacent said one of said end posts,
means biasing said pin into said hole to prevent collapsing of said
bed rail and means for withdrawing said pin to permit collapsing of
said bed rail.
9. A bed rail as claimed in claim 6 including locking means for
preventing pivoting of one of said pivot arms with respect to said
bed rail whereby said rail is locked in said first position.
10. In combination, a bed and a bed rail assembly therefor, said
assembly comprising a bed rail movable from an upright position
alongside the bed to a lowered position permitting access to the
bed, support means for said bed rail mounted beneath said bed at
spaced locations thereon, said support means being spaced from said
bed rail in a direction transverse to the plane of the bed rail,
and means extending between each of said support means and said bed
rail at spaced locations thereon and pivotally connected to each of
said support means and said bed rail for pivotal movement in a
plane substantially normal to the plane of said bed rail, whereby
said bed rail is swingable from a first position alongside the bed
to a second position beneath the bed.
11. A bed rail assembly as claimed in claim 10 wherein said support
means includes a pair of cross bars extending across the bed and
including a second bed rail on the side of said bed opposite the
first bed rail and second means extending between each of said
cross bars and said second bed rail at spaced locations thereon and
pivotally connected to each of said cross bars and said second bed
rail for pivotal movement in a plane substantially normal to the
plane of said second bed rail.
Description
BACKGROUND OF THE INVENTION
This invention relates to bed rail assemblies for beds and more
particularly to such an assembly in which each bed rail can be
collapsed and stored beneath the bed without removing it
therefrom.
A wide variety of bed rail assemblies have heretofore been devised
and marketed which are primarily intended for use with hospital
beds to prevent patients from falling out of bed. Such assemblies
may be incorporated integrally with the basic bed structure but
more often and more or less readily attachable to and detachable
from the basic bed frame. Whether integral or detachable the bed
rail must be movable to a position enabling the patient to move
from the bed and providing access to the patient without
significant obstruction.
A problem with essentially all bed rails, however, is the
obstruction they provide when not in the guarding position. Even
when moved to a position where the patient is not restrained from
falling out of bed, a typical bed rail is perfectly positioned
alongside the bed to bump shins and generally interfere with
hospital personnel attending to the needs of the patient. The bed
rail can, of course, be detached from the bed structure to prevent
such interference but this is highly impractical when the patient
occupying the bed requires the protection provided by the bed rail.
Even when the bed is occupied by a patient not requiring the
protection provided by the bed rail, detachment and particularly
storage of the bed rail are a problem. Not only must time and
effort be expended to remove and reinstall the bed rail, but also a
storage area must be provided if the rail cannot be immediately
installed on another bed. Also, hospital beds are sized to permit
them to be moved through doors from one location to another. The
additional width of a bed rail assembly can prevent the beds from
being moved from a room without detachment of the bed rail.
Bed rails used on adjustable height beds must be folded compactly
from the upward use position due to very limited space allowed in
the lowered position of the bed.
SUMMARY OF THE INVENTION
A general object of this invention is to provide a bed rail
assembly that overcomes the problems noted above encountered with
prior bed rail assemblies. A more particular object is to provide
such an assembly in which each bed rail can be stored beneath the
bed to which it is attached.
Another object is to provide such an assembly in which each bed
rail can be easily and conveniently collapsed compactly for access
to the bed and can be readily restored to its upright guarding
position.
Still another object is to provide such a bed rail assembly that is
reliable in operation and simple and convenient to use.
These and other objects of the present invention are obtained in a
bed rail assembly for beds including a bed rail movable from an
upright position to a lowered position, support means for the bed
rail adapted to be mounted on a bed frame and means extending
between the bed rail and the support means and pivotally connected
to each for permitting swinging movement of the bed rail toward the
support means. The bed rail is thus movable from an upright
position alongside the bed to a lowered position permitting access
to the bed and is swingable from a position alongside the bed to a
stored position spaced from the position alongside the bed in the
direction of the support means.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a bed equipped with a bed rail
assembly according to the present invention.
FIG. 2 is a perspective of the bed rail assembly with the
connecting parts thereof exploded for clarity.
FIG. 3 is a foot end view of a bed equipped with a bed rail
assembly, one bed rail being in the guarding position and the
second in the collapsed but not stored position.
FIG. 4 is an end view similar to FIG. 3 with the second bed rail in
the collapsed and stored position.
FIG. 5 is a plan view of the bed of FIG. 3 with the second bed rail
shown in dashed lines in the stored position.
FIG. 6 is a side view of the bed of FIG. 5 along the line 6--6 of
FIG. 5.
FIG. 7 is a side view partly in section of the mechanism for
releasing the bed rail to permit it to collapse in a vertical plane
and of the mechanism for permitting the bed rail to be swung in a
horizontal plane to a stored position beneath the bed.
FIG. 8 is a sectional view along line 8--8 of FIG. 7.
FIG. 9 is a sectional view along line 9--9 of FIG. 7.
FIG. 10 is a view partly in section along line 10--10 of FIG.
7.
FIG. 11 is a sectional view in one plane of a typical pivotal
connection of adjacent members of the bed rail permitting it to
fold in a vertical plane.
FIG. 12 is a sectional view along the line 12--12 of FIG. 11.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1 a bed B is equipped with a bed rail assembly including
bed rails 10, 10' and cross bars 12 and 13 shown in FIGS. 2, 3, 4
and 5. The cross bars are connected to the frame of the bed by
means of brackets 15 and support the bed rails 10, 10' on opposite
sides of the bed. Each bed rail 10, 10' is constructed so that it
can be collapsed or folded in a substantially vertical plane from
its upright or guarding position alongside the bed to a condition
in which it is of lesser height but greater length and positioned
below the level of the bed frame. Each bed rail is also connected
to cross bars 12 and 13 so as to be swingable in a substantially
horizontal plane to a stored position beneath the bed. FIGS. 2, 3,
4 and 5 illustrate a bed rail in its guarding position and FIGS. 3,
5 and 6 illustrate a rail in collapsed but not stored position. A
bed rail in collapsed and stored position is shown in FIG. 4 and in
dashed lines in FIGS. 5 and 6.
The two bed rails 10, 10' of the bed rail assembly are identical
and the description below is applicable to either. It will also be
apparent that the bed rail assembly in some cases need only
comprise a single bed rail and in that case the cross bars 12, 13
need be only of sufficient length to support the single rail. The
cross bars 12, 13 may vary in length, shape, configuration and
means of attachment 15, to provide for the assembly to be mounted
on beds of any style or make.
As best seen in FIGS. 1, 2 and 6, each bed rail includes a top
support rail 20, an intermediate extension rail 22, a bottom
support rail 23, and end posts 25 and 26. Pivot connections
generally indicated as 27 and 28 are provided between top support
rail 20 and end posts 25 and 26, respectively. Substantially
identical pivot connections 30 and 31 are provided to connect
extension rail 22 to end posts 25 and 26, respectively. Extension
rail 22 includes an outer tube 33 which telescopes with an inner
tube 34. Outer tube 33 joins pivot connections 31 at the head
(right, as viewed) end of the bed rail and telescopes with inner
tube 34 at the foot end. Inner tube 34 connects with pivot
connection 30 at the foot end of the bed rail. The bottom support
rail 23 is provided with bushings 37, 38 at opposite ends thereof
which mate with pivot bolts 40, 41, respectively, to pivotally
connect end posts 25 and 26 to opposite ends of the bottom support
rail. End post 25 is provided with a locking mechanism generally
designated 42 which permits the bed rail to be folded to its
collapsed position or locked in its guarding position as described
more fully below. A stop bracket 43 is provided to permit folding
of the bed rail only toward the foot end of the bed.
Extending upwardly from the foot end of the bottom support rail 23
is a support tube 45 which supports a pivot assembly generally
designated 46. The pivot assembly pivotally connects the foot end
of the bed rail to the foot end cross bar 12 as described more
fully below. Another support tube 52 extends upwardly from bottom
support rail 23 adjacent the head end of the bed rail and supports
a similar pivot assembly 53 which pivotally connects the head end
of the bed rail to the head end cross bar 13. A locking mechanism
55 on the foot end pivot assembly 46 locks the bed rail in the
outer position or permits it to be swung to stored position beneath
the bed.
FIG. 7 illustrates in detail the connection of the foot end pivot
assembly 46 between the foot end cross bar 12 and end post 25 and
the locking mechanisms which permit folding and storing of the bed
rail. Pivot assembly 46 includes a pivot sleeve 60 which fits over
support tube 45, a pivot arm 62 and a bushing 63 which mates with a
pivot bolt 65 on the end of cross bar 12. A pair of teflon belts 67
and 68 are provided between support tube 45 and sleeve 60 to
provide a tight but relatively friction-free pivotal connection
therebetween. Sleeve 60 is normally prevented from rotating with
respect to support tube 45 by the locking mechanism 55 shown in
FIG. 8 which includes a bushing 70 extending outwardly from sleeve
60 and a locking pin 72 slidable therein. Locking pin 72 is biased
by a spring 74 to extend through holes 75 and 76 in sleeve 60 and
tube 45, respectively, to prevent rotation of the sleeve with
respect to the tube. Such rotation is permitted when the locking
pin is withdrawn from hole 76. Support tube 45 is provided with a
transverse pin 78 and the top of pivot sleeve 60 is grooved as
shown at 79 so that pivoting of sleeve 60 about tube 45 is
permitted only in a direction such that pivot arm 60 swings toward
the foot end of the bed rail.
The locking mechanism 42 is provided for normally preventing
folding of the bed rail in a vertical plane. Locking mechanism 42
includes a locking pin 80 which is pivotally connected at one end
to a release handle 81 and is biased by a spring 82 so that its
other end extends through holes 84 and 85 in pivot sleeve 60 and
support tube 45, respectively. In this position locking pin 80
prevents movement of end post 25 about its pivotal connection with
bottom support rail 23 at bushing 37 and thereby prevents folding
of the bed rail. Locking pin 80 also prevents rotation of sleeve 60
about tube 45.
The stop bracket 43 connected to end post 25 extends as shown in
FIG. 9 about one side of sleeve 60 to prevent pivoting of end post
25 toward the head end of the bed rail when locking pin 80 is
withdrawn from holes 84 and 85.
The pivot assembly 53 for the head end of the bed rail is
substantially identical to pivot assembly 46 with the exception
that assembly 46 is provided with the locking mechanism 55 and with
the holes 84 and 85 in sleeve 60 for receipt of the locking pin 80
which prevents folding of the bed rail. In other respects the pivot
assemblies 46 and 53 are substantially identical and assembly 53
will accordingly not be described in detail.
FIGS. 11 and 12 illustrate the structure of the pivot connections
27, 28, 30 and 31. Each pivot connection includes a slotted bracket
90 having flanges 91 and 92 which are fitted into the end of a
tubular member, such as end post 25, and held therein by means of a
rivet 94. A link 96 is welded or otherwise suitably connected to
the opposite tubular member, such as top support rail 20, and fits
within the slot of the slotted bracket 90. A pivot bolt 98 passes
through aligned holes in the slotted bracket and the link 96 to
pivotally connect the two.
In operation, with a bed rail in the guarding position shown in
FIG. 1 it may be collapsed by pushing its release handle 81 and
folding it in the direction permitted by stop bracket 43. The bed
rail is then in the position of rail 10 in FIG. 3 and in full lines
in FIGS. 5 and 6 in which end posts 25 and 26 have been rotated to
be substantially coplanar with bottom support rail 23. The length
of intermediate support rail 22 is increased by the partial
withdrawal of inner tube 34 from outer tube 33 as rail 22 assumes
the somewhat diagonal position illustrated in FIG. 6. In this
position the rail is still positioned outwardly of the edge of the
bed as seen in FIGS. 3 and 5. The bed rail can then be swung
beneath the bed to the position of bed rail 10 in FIG. 4 which is
shown in dashed lines in FIGS. 5 and 6. To accomplish this, the
release pin 72 on pivot sleeve 60 is pulled to permit the pivot
sleeve to rotate with respect to support tube 45. The bed rail can
then be swung beneath the bed with the foot end and head end pivot
sleeves rotating about their respective support tubes and the foot
end and head end bushings rotating about their respective pivot
bolts until the respective head end and foot end pivot arms are
rotated through 90.degree. from their original position toward the
foot end of the bed as shown in dashed lines in FIGS. 5 and 6. In
this position the rail is out of the way and may be stored
indefinitely but is available immediately when needed.
To return the rail to its guarding position it need only be swung
outwardly until release pin 72 is aligned with and engages hole 76
in support tube 45 and locks the rail in its outer position. The
rail can then be raised to its upright guarding position by raising
the rail until end posts 25 and 26 are again in their vertical
positions, and stop bracket 43 on end post 25 engages pivot sleeve
60. Release handle 81 can then be operated to permit locking pin 80
to engage holes 84 and 85 in pivot sleeve 60 and support tube 45,
respectively, to lock the bed rail in its upright guarding
position.
While a preferred embodiment of the present invention has been
shown and described in detail herein it will be apparent to those
skilled in the art that modifications and improvements may be made
to the embodiment specifically disclosed without departing from the
scope and spirit of the invention. Accordingly, this invention is
not to be limited to the embodiment specifically described herein
nor in any other way inconsistent with the progress in the art
promoted by the invention.
* * * * *