U.S. patent number 3,647,105 [Application Number 05/038,065] was granted by the patent office on 1972-03-07 for set-up tray.
This patent grant is currently assigned to The Upjohn Company. Invention is credited to Clifford R. Keeslar.
United States Patent |
3,647,105 |
Keeslar |
March 7, 1972 |
SET-UP TRAY
Abstract
A tray assembly having a channel-shaped base into which plural
disposable trays are slidably receivable for holding a variety of
articles. Each tray has a bottom wall connected to one or more
pairs of cooperating, channel-shaped sidewalls with integral
releasable gripping means for releasably holding said sidewalls
together to form a recess or compartment which normally opens
upwardly. The entire tray can be fabricated by a vacuum molding
process from a single sheet of plastic material. Plural trays and
plural bases can be interconnected in side-by-side
relationship.
Inventors: |
Keeslar; Clifford R. (Oshtemo
Township, Kalamazoo County, MI) |
Assignee: |
The Upjohn Company (Kalamazoo,
MI)
|
Family
ID: |
21897900 |
Appl.
No.: |
05/038,065 |
Filed: |
May 18, 1970 |
Current U.S.
Class: |
220/23.4;
229/406; 206/232; 206/443; 206/557; 206/561; 220/507; 220/555;
229/120.02 |
Current CPC
Class: |
B01L
9/06 (20130101); B65D 21/0204 (20130101); B65D
25/04 (20130101) |
Current International
Class: |
B01L
9/00 (20060101); B01L 9/06 (20060101); B65D
25/04 (20060101); B65D 21/02 (20060101); B65d
021/02 (); B65d 025/04 () |
Field of
Search: |
;220/20,22,23.4
;206/3,72 ;229/2.5,15 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Lowrance; George E.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. A tray assembly for holding a plurality of articles
comprising:
channel-shaped base means having plural sidewall means;
tray means slidably and snugly disposed within said base means for
movement lengthwise of said sidewall means, said tray means having
first and second, channel-shaped sidewall members with abutting
edges;
bottom wall means integral with and extending between corresponding
ends of said sidewall members; and
cooperating first and second gripping means on said abutting edges
for releasably holding said first and second sidewall members
together so that the channel-shaped sidewall members and bottom
wall define an upwardly opening compartment into which said
articles are receivable.
2. A tray assembly according to claim 1, wherein said tray means
includes plural pairs of sidewall members and each sidewall member
has plural and parallel channel-shaped recesses, said recesses in
each pair of sidewall members being aligned to define plural
compartments, and said pairs of sidewall members being
interconnected along adjacent edges extending lengthwise of said
sidewall means.
3. A tray assembly according to claim 2, including second tray
means having first and second channel-shaped sidewall members with
abutting edges and first and second connecting means integral with
said abutting edges for releasably holding said sidewall members of
said second tray means together to form an article-receiving
compartment; and
bottom wall means integral with and extending between adjacent ends
of said sidewall members of said second tray means.
4. In a tray assembly having channel-shaped base means with
substantially parallel sidewall means, article-receiving tray means
comprising:
plural pairs of first and second sidewall members having plural,
parallel and side-by-side channels;
bottom wall means integral with and extending between adjacent ends
of each pair of sidewall members;
first and second releasable gripping means on said first and second
sidewall members between said channels for releasably holding said
sidewall members together so that said channels are aligned to
define a plurality of upwardly opening, article receiving
compartments; and
hinge means connecting the first sidewall member of one pair
thereof to the adjacent, second sidewall member of another pair
thereof, said hinge means extending lengthwise of said sidewall
means of said base means, and said tray means being snugly disposed
between said sidewall means.
5. A tray means according to claim 4, wherein said compartments and
articles are cylindrical;
wherein said gripping means comprises a tongue and groove
connection; and
wherein said sidewall members, said gripping means and said bottom
wall means are fabricated from a single sheet of plastic
material.
6. A tray assembly according to claim 4, wherein said sidewall
members have substantially parallel flanges projecting upwardly
beyond said channels;
wherein said hinge means is secured to adjacent pairs of said
flanges; and
wherein said sidewall means of said base means have lengthwise
parallel ridges projecting toward each other near the upper edges
of said sidewall means for engagement by the upper edges of said
flanges when said tray means is disposed within said base
means.
7. A tray assembly according to claim 1, including a pair of
elongated, spaced and parallel slide members integral with and
extending lengthwise of one sidewall means on the side thereof
remote from the other sidewall means, said slide members projecting
outwardly from the sidewall means and then away from each other;
and
a pair of elongated, spaced and parallel guide members integral
with and extending lengthwise of the other sidewall means on the
side thereof remote from said one sidewall means, said guide
members projecting outwardly from said other sidewall means and
then toward each other, the spacing between said pairs of slide and
guide members being such that a pair of slide members on one base
means is slidably receivable between and within a pair of guide
members on a second base means for firmly holding the two base
means in side-by-side relationship.
Description
BACKGROUND OF THE INVENTION
This invention relates in general to a tray assembly capable of
holding a plurality of similar or dissimilar articles and, more
particularly, to an assembly adapted for use in collecting,
identifying and storing a plurality of liquid or solid samples or
specimens taken from patients usually for the purpose of conducting
tests on or with said samples or specimens.
It has been common practice for many years to furnish laboratory
facilities to which doctors can deliver samples or specimens taken
from patients, in order to conduct one or more tests on each sample
or specimen. This procedure has developed for many reasons
including the complicated machinery required for some tests, the
level of training required by technicians for conducting many of
these tests and the wide variety of such tests which have been made
available by advances in medicine. A single physician or even small
groups of physicians cannot afford to maintain the equipment or
staff required to conduct many of these tests on their own
premises. Moreover, the unit price of some tests becomes
prohibitive where they must be run on a one at a time basis.
However, the collection and identification of large quantities of
samples or specimens by many doctors, followed by the mixing
together of the specimen containers at the test laboratory,
introduces a serious risk of confusing the specimens. Procedures
have been developed for maintaining the identification of the
various specimen containers when they reach the laboratory. Thus,
this invention is concerned primarily with the development of a
setup tray assembly which insures clear identification and simple
handling of the specimens and/or samples as they are collected, for
example, at a clinic or in a hospital.
In order to fill the need for a setup or specimen collecting tray
assembly, it became evident that said assembly should be light in
weight and fabricated from materials and in a manner so that the
parts thereof, which cannot be easily and quickly sterilized, can
be disposed of easily with only minor expense involved. The tray
assembly should be adaptable to handling articles or containers of
various sizes and shapes and this adaptability should be capable of
quick application by means of interchangeable parts.
Accordingly, a primary object of this invention is the provision of
an inexpensive, easily usable tray assembly for collecting and
identifying plural articles, such as containers of specimens which
might contaminate the assembly, and wherein the tray assembly has
article-holding means which can be made sufficiently inexpensively
that they can be disposed of, but which can be fabricated from a
material which can be sterilized, if desired.
A further object of this invention is the provision of a tray
assembly, as aforesaid, which can be expanded by coupling to it
other tray assemblies and wherein each tray assembly can have
various types of article-holding means or trays removably held
therein.
Other objects and purposes of this invention will become apparent
to persons familiar with the type of structure involved upon
reading the following descriptive material and examining the
accompanying drawings, in which:
FIG. 1 is a perspective view of a pair of tray assemblies embodying
the invention;
FIG. 2 is a sectional view taken along the line II--II in FIG. 1,
with the two assemblies separated;
FIG. 3 is a perspective view of an article-holding tray of the
invention;
FIG. 4 is an exploded sectional view taken along the line IV--IV in
FIG. 3;
FIG. 5 is a collapsed top view of the article-holding tray
appearing in FIG. 3;
FIG. 6 is a collapsed side view of the tray appearing in FIGS. 3
and 5;
FIG. 7 is a perspective view of another article-holding tray
embodying the invention;
FIG. 8 is a partially collapsed, side elevational view of the
article-holding tray appearing in FIG. 7;
FIG. 9 is a sectional view substantially as taken along the line
IX--IX in FIG. 7;
FIG. 10 is a sectional view taken along the line X--X in FIG.
7;
FIG. 11 is a collapsed top view of one section of the
article-holding tray appearing in FIG. 7;
FIG. 12 is a sectional view taken along the line XII--XII in FIG.
11; and
FIG. 13 is an exploded fragment of FIG. 10.
For convenience in description, the terms "upper," "lower" and
words of similar import will have reference to the structures
described hereinafter as appearing in FIGS. 1, 3 and 7. The terms
"inner," "outer" and derivatives thereof will have reference to the
geometric center of the tray assembly and parts thereof.
SUMMARY OF THE INVENTION
The objects and purposes of the invention, including those set
forth above, have been met by providing an elongated,
channel-shaped base and a variety of article-holding trays are
slidably receivable lengthwise of the base. The individual trays
are characterized by their fabrication from plastic sheet material
by a vacuum molding process so that they have a pair of
channel-shaped sidewalls connected along corresponding edges
thereof to a bottom wall, said sidewalls having connecting means
for releasably securing the two sidewalls together to form
compartments or recesses which open away from said bottom wall. The
base and the trays are provided with cooperating means for
preventing accidental dislodgement of the trays from the base in a
direction transversely of the base. Dislodgement is yieldably
opposed lengthwise of the base by frictional engagement.
DETAILED DESCRIPTION
FIG. 1 illustrates two tray assemblies 10 and 11 which embody the
invention and which are connected together in side-by-side
relationship. The tray assembly 10 is comprised of a substantially
rigid, channel-shaped base 12 in which a pair of article-holding
trays 13 and 14 are snugly held for resisted slidable movement
lengthwise of the base 12.
The tray assembly 11 has a substantially rigid, channel-shaped base
16 which may be, and preferably is, identical to the base 12. A
plurality of substantially identical article-holding trays 17, here
four, are snugly held within the base 16 for resisted slidable
movement lengthwise thereof.
The base 12, which is preferably, but not necessarily, cut from a
plastic extrusion, has a bottom wall 18 (FIG. 2) and a pair of
parallel sidewalls 21 and 22 which project upwardly from and are
integral with the lateral edges of the bottom wall 18. A pair of
preferably parallel and spaced runners 23 and 24, which are
integral with and extend lengthwise of the bottom wall 18, project
downwardly equidistantly therefrom for the purpose of supporting
the base 12. A pair of parallel ridges 26 and 27 are integral with
and extend lengthwise of the opposing inner surfaces of the walls
21 and 22, respectively, near the upper edges thereof.
A pair of spaced and parallel inner gripping flanges 28 and 29 are
preferably integral with and extend lengthwise of the outer surface
of the sidewall 22, preferably in the central portion thereof. The
flanges 28 and 29 project outwardly a short distance away from the
sidewall 22 and then parallel with said sidewall and away from each
other. Thus, an upwardly facing groove 32 is created between the
flange 28 and the sidewall 22, whereas a downwardly facing groove
33 is provided between the flange 29 and the sidewall 22.
A pair of spaced and parallel outer gripping flanges 34 and 35 are
integral with and extend lengthwise of the central portion of the
outer surface of the sidewall 21. The flanges 34 and 35 project
outwardly a short distance from the sidewall 21 and then parallel
therewith toward each other. Thus, the flanges 34 and 35 create
grooves 37 and 38, respectively, between themselves and the
adjacent outer surface of the sidewall 21.
The spacing between the remote edges of the flanges 28 and 29 is
slightly less than the distance between the bottoms of the opposing
grooves 37 and 38 so that one base 12 can be interlocked with
another base, such as the base 16, by means of the flanges 28, 29
and 34, 35.
The base 16 may be and preferably is identical with the base 12.
Accordingly, parts of the base 16 which are identical with
corresponding parts on the base 12 will hereinafter be identified
by the same numerals in addition to the suffix "A." More
specifically, the base 16 has a bottom wall 18A, a pair of
sidewalls 21A and 22A and a pair of supporting runners 23A and 24A.
Also, the sidewall 22A has integral inner gripping flanges 28A and
29A, and the sidewall 21A has outer gripping flanges 34A and
35A.
As indicated above, and as shown in FIG. 1, the inner flanges 28A
and 29A on the sidewall 22A are slidably and snugly receivable into
the grooves 37 and 38 formed by the outer gripping flanges 34 and
35, respectively, on the sidewall 21 for firmly connecting the
bases 12 and 16 together. It will be apparent that the engagement
between the flanges 34, 35 and 28A, 29A is effected by moving one
of the bases 12 and 16 lengthwise along the other base.
The tray 14 (FIGS. 3, 5 and 6) includes first and second
channel-shaped wall members 41 and 42, respectively, which are
preferably integral with and hingedly connected to a lower wall 43.
The wall member 41 (FIG. 3) includes a relatively thin sidewall 44
and a pair of integral, spaced and substantially parallel and
hollow end wall parts 46 and 47.
The end wall part 46 has an inner sheet 48 (FIGS. 4 and 5) which is
integral along one edge with the sidewall 44 and an outer sheet 49
which is integral along a corresponding edge with a rectangular
flange 52 which is disposed within a plane parallel with and spaced
outwardly from the sidewall 44. The flange 52 is connected to the
top and bottom edges of the sidewall 44 by the webs 53 and 54,
respectively. The lower horizontal portion of the flange 52 is
relatively narrow and serves primarily as a hinge between the web
54 and the lower wall 43.
The end wall part 47 (FIG. 5) has an inner sheet 56 and outer sheet
57 which, like the sheets 48 and 49, converge toward each other
away from the sidewall 44.
The upper and lower edges of the sheets 48 and 49 (FIG. 5) are
integral with elongated strips 58 and 49, respectively, which
converge toward each other away from the sidewall 44. Also, the
sheets 56 and 57 are connected along their upper and lower edges by
the strips 62 and 63, respectively, which converge toward each
other away from the sidewall 44.
The end wall part 46 has a channel-shaped edge element 64 which is
connected to the adjacent edges of the sheets 48, 49 and the strips
58, 59 by an integral flange 67. The edge element 64 has closed
ends and opens into the space between the sheets 48 and 49.
Moreover, said element 64 has a plurality of integral ribs 66 which
are spaced from the flange 67 and project from both lengthwise
sides of the element 64 for reasons appearing hereinafter.
The end wall part 47 has an edge element 64 which is preferably
identical with the edge element 68 and, accordingly, has integral
ribs 69 and flange 70.
The wall member 42 may be, and preferably is, identical with the
wall member 41 except that the edge elements 73 and 74 differ from
the edge elements 64 and 68, respectively. Accordingly, the other
parts of the wall member 42 shall be identified by the same
numerals used on corresponding parts of the wall member 41 in
addition to the suffix "A." Specifically, the wall member 42 has
end wall parts 46A and 47A which are built up from sheets and
strips integral with each other along connecting edges. Also, wall
member 42 has a sidewall 44A which is connected to a flange 52A
extending therearound.
The edge element 73 has a flange 76 integral with the adjacent
edges of the sheets 48A, 49A and the strips 58A, 59A. Said edge
element 73 defines an inwardly expanding recess 77 which is
slightly longer than the edge element 64 and of approximately the
same width. The edge element is disposed between the sheets 48A and
49A. The edge element 64 is forced into the recess 77, due to the
presence of the ribs 66, to provide the means by which the end wall
part 46 is releasably held with respect to the end wall part
46A.
The edge element 74 on the end wall part 47A is preferably
identical with the edge element 73. Thus, the edge element 68 is
snugly received into the recess 78 to releasably connect the wall
parts 47 and 47A together.
The lower wall 43 of the tray 14 (FIGS. 5 and 6) has a flat and
downwardly offset central portion 80 which is surrounded by a
rectangular raised ridge 81 which is spaced inwardly from the
peripheral edge of said lower wall 43. The opposite end portions 82
and 83 of the ridge 81 each slope upwardly toward a high central
point for snug engagement with the corresponding sloped strips 59,
59A and 63, 63A on the end wall parts 46, 46A and 47, 47A,
respectively, when the tray 14 is in its assembled position of FIG.
3.
The lower horizontal edge of flange 52A on the sidewall 44A serves
as a flexible hinge connection to the lower wall 43.
The tray 17 (FIGS. 2, 7, 8 and 11), is comprised of a plurality of
article- or container-holding sections 90 which, in this particular
embodiment, are substantially identical to each other. However, it
will become apparent that holding sections capable of engaging
articles of different sizes and shapes can be coupled together
according to the teachings of this invention to form a tray of the
same general character as the tray 17.
The holding section 90 (FIG. 11) has a pair of wall members 91 and
92 which, like the wall members 41 and 42 (FIG. 5), may be
substantially identical in most respects and are releasably
connectable to each other to form, in this instance, a plurality of
upwardly opening recesses 93 (FIG. 2) into which, also in this
embodiment, the cylindrical specimen containers 93 are slidably and
snugly receivable. The section 90 (FIG. 11), like the tray 14 (FIG.
5), is preferably fabricated by a vacuum molding procedure from a
single sheet of plastic material.
The article-holding section 90 (FIG. 11) has a lower wall 96 which
is relatively narrow and is hingedly connected along its lateral
edges to the lower edges of the wall members 91 and 92. As shown in
FIGS. 7, 11 and 12, the substantially semicylindrical recesses 93
in the wall member 91 are defined by inwardly offset portions 97 of
the wall member 91. These offset portions or dividers are parallel
with each other and extend from near the top to near the bottom of
the wall member 91. Said offset portions 97 curve toward each other
at their lower ends to round out the lower ends of the recesses 93.
However, it will be recognized that, by appropriate shaping of the
said offset portions 97, the recesses 93 can be formed to receive
containers or articles having a substantially rectangular or other
shape.
The lower ends 98 (FIG. 12) of the offset portions 97 are sloped
outwardly, as appearing in FIG. 12, for engagement with a
correspondingly sloped part of the lower wall 96, as discussed
hereinafter.
The offset portions 97 (FIG. 11) have inner surfaces 101 which are
preferably coplanar and are integral with elongated edge elements
102 which extend lengthwise of and project away from said inner
surfaces 101. Said edge elements 102 have spaced, sidewardly
projecting ribs 103 which are spaced from the surfaces 101 and the
function of which will be discussed hereinafter.
The wall member 91 (FIG. 7) has an integral and peripheral flange
104, the upper horizontal edge of which is slidably engageable with
the lower edge of one of the ridges 26A and 27A (FIG. 2) for the
purpose of holding the tray 17, of which the article-holding
section 90 is a part, within the base 16. The upper portion of the
flange 104 is offset outwardly to space the articles held in this
section from the ridge 26A or 27A.
Those parts of the wall member 92 which are identical or
substantially identical with corresponding parts of the wall member
91 will be identified by the same numerals in addition to the
suffix "A." Thus, the wall member 92 has a plurality of recesses
93A defined between elongated offset portions 97A, which recesses
cooperate with the recesses 93A to define elongated openings in
which the containers 94 are held.
The openings defined between adjacent and opposing pairs of
recesses 93 and 93A (FIG. 10) are preferably slightly oversized and
out-of-round. Thus, although the sidewall of the container 94 is
snugly held between opposing parts of the offset portions 97 and
97A, said recesses automatically adapt themselves to the reception
of containers which are slightly oversized or undersized.
The inner surfaces 101A of the offset portions 97A have integral
elements defining elongated recesses which extend lengthwise
thereof and are slightly longer and wider than the corresponding
dimensions of the edge elements 102 on the offset portions 97. The
recesses 107 extend away from the inner surfaces 101A in order to
furnish a holding action after the ribs 103 on an edge element 102
move into a recess 107. Obviously, in order to have the foregoing
connection occur, it is necessary for the recesses 107 and offset
portions 97A to be in alignment with the edge elements 102 and the
offset portions 97, respectively, when the wall members 91 and 92
are moved into their closed, article-holding positions of FIG.
7.
The wall member 92 has a peripheral flange 104A, the upper
horizontal portion of which is normally connected to the flange
104B (FIG. 9) of the wall member 91B on a second article holding
section 105. That is, the elongated flat hinge element 106 is
secured to the upper edge portions of the flanges 104A and 104B so
that several article-holding sections can be thusly interconnected
whereby all of the wall members 91, 92, 91B and so on can be laid
flat.
The lower wall 96 of the holding section 90 is elongated and has
two lengthwise portions 108 and 109 which slope upwardly from their
remote lateral edges to their meeting edges to furnish rigidity for
the lower wall 96. This accounts for the corresponding slope in the
lower ends 98 and 98A of the offset portions 97 and 97A,
respectively.
The tray 13 (FIG. 1) may be and preferably is substantially
identical with the tray 14 except for the length thereof and the
further fact that the tray 13 has intermediate wall parts 112 and
112A which are disposed between and are parallel with the end wall
parts 113, 114 and 113A, 114A, respectively. In all other respects,
the structure of the tray 13 may be identical with the structure of
the tray 14.
The compartment 116 defined between the end wall parts 113, 113A
and the intermediate wall parts 112, 112A, for example, may be used
to hold cards 117 which correspond in some convenient, conventional
manner to the containers 94 disposed within the trays 17 in the
base 16. Thus, complete descriptive and identification information
is immediately accessible in the vicinity of the specimen holding
containers 94. The compartment 118 defined between the intermediate
wall parts 112, 112A and the end wall parts 114, 114A,
respectively, can be used to hold the labels or the like applied to
the containers 94 in order to correlate them in a convenient,
conventional manner with the information on the cards 117.
OPERATION
The manner of fabrication, assembly and operation of the tray
assemblies described above will be apparent to persons skilled in
this art after reading said descriptive material. However, a brief
discussion of assembly and operation will be given hereinafter for
convenience.
The trays 13, 14 and 17, either in their disclosed forms or in
slightly modified forms as suggested, can be and are advantageously
designed for fabrication from sheet form plastic material by vacuum
molding procedures. Thus, said trays can be manufactured
inexpensively and, accordingly, can be disposable. Nevertheless,
the shapes of said trays are such that they can be sterilized for
reuse provided that they are fabricated from materials capable of
retaining their shape when exposed to the heat of
sterilization.
When the tray 14, for example, is placed in the base 12, the top
edges of the flanges 52 and 52A are slidably disposed beneath and
engaged by the ridges 27 and 26 in the base 12 when the flat
portion 80 of the lower wall 43 is snugly and slidably engaged with
the bottom wall 18 of said base 12. Thus, the tray 14 can move
lengthwise of the base 12 but cannot be moved transversely of the
base when it is properly disposed therein. Accordingly, the base 12
not only serves to support the trays 13, 14 or 17, but it also
serves by its greater rigidity to hold said trays in their closed,
operating positions which augments the gripping connection effected
between the edge element 64 and the edge element 73, for
example.
The only essential differences between the tray 14 and one of the
article-holding sections 90 of the tray 17 are its dimensions and
the fact that it is designed to receive and position plural
articles or containers of a particular size and shape. Also, since
the article-holding sections 90 do not have the same width as the
base 16, several sections 90 are advantageously and hingedly
connected together along their adjacent upper edges. That is, (FIG.
9) the flange 104A on the wall member 92 is connected to the flange
104B on an adjacent wall member 105 by the hinge element 106. The
upper edges of the outermost flanges 104 and 104C of the tray 17
will be engaged by the ridges 27A and 26A, respectively, for
holding the tray 17 in its container receiving position within the
base 16. The upper portions of the flanges 104 and 104C are offset
outwardly to space the containers 94 from the ridges 27A and 26A,
respectively. However, the upper portions of the corresponding
flanges, such as 104A and 104B, on intermediate wall members are
preferably not offset.
By virtue of the gripping flanges on adjacent sidewalls of the
bases 12 and 16, a pair of tray assemblies 10 and 11 can be rigidly
but releasably interconnected to form a multiple assembly. This
arrangement will be particularly advantageous in avoiding mixups
between trays which could occur if they were unattached. This would
be of particular value where two assemblies of containers and two
assemblies of cards are being used at the same time and place, as
in a hospital, for collecting specimens.
Although a particular preferred embodiment of the invention has
been disclosed in detail for illustrative purposes, it will be
recognized that variations or modifications of the disclosed
apparatus, including the rearrangement of parts, lie within the
scope of the present invention.
* * * * *