[0001] This invention relates to crates, particularly but not exclusively - for bottles
or other containers.
[0002] US Patent 3 701 449 discloses a crate with integral partitions extending upwards
from a floor adapted to rest on the tops of bottles in a subjacent crate, so the subjacent
bottles carry the weight of bottles above, but when handling a crate individually
it must be sufficiently rigid in itself.
[0003] The invention provides a suitably rigid crate with relatively low material content.
[0004] According to the invention, there is provided a crate having a body with a cavity
for receiving a plurality of containers and having a floor structure on which the
containers can be supported; and a crate insert providing a spacer arrangement located
in the cavity of the body and suitably above the floor of the body for separating
containers in the crate from one another in normal use.
[0005] The spacer arrangement of the crate insert may be located in the upper half of the
crate and may alone or together with the body provide openings for receiving containers.
Where the openings are provided by both the body and the insert, the crate insert
may border only part of any opening. However, where openings are provided completely
by the spacer arrangement, the spacer arrangement may be designed to completely encircle
the containers in those openings.
[0006] It will be appreciated that the crate may be particularly suited for receiving containers
in the form of bottles.
[0007] If the crate body is made as a relatively thin-walled body of plastics material,
the body may flex excessively if it alone is used for carrying containers. Partitions
or webs provided in the lower part of the crate may not stabilize the body sufficiently
in normal use. The spacer arrangement can be suitably rigid to restrain excessive
flexing of the body when it is carrying full containers.. For this purpose, the crate
insert may be shaped so that, where it extends from one wall of the crate to another,
it is reinforced to provide the body with suitable support against flexing. For example,
it may include concave or hollow sections, such as inverted V-shaped sections, strengthened
by downwardly depending reinforcing webs.
[0008] The body and crate insert may be provided with complementary formations for enabling
the crate insert to be secured to the body at various locations for further strengthening
the crate.
[0009] The floor of the crate may be part of a base including suitable web formations for
restraining sagging of the base.
[0010] If the crate is to be used for containers whose contents should be protected from
excessive exposure to light, the crate may have a peripheral wall high enough to exclude
most light from reaching the containers. In any event, it is not necessary for the
walls to be sufficiently high to engage another full crate when the crates are stacked.
In this regard, the crate may be provided with suitable carrier formations or a lower
supporting surface for engaging and resting on the tops or necks of suitably rigid
containers, such as bottles, in a subjacent crate. A relatively flat supporting surface
can be used to allow the crate to slide more readily into place on containers in a
subjacent crate while a plurality of formations may be used for bottles. Any flat
surface may be in a recessed central area of the base of the crate with a peripheral
border to limit undesirable sliding of the crate when supported on containers in a
subjacent crate.
[0011] An embodiment of the invention will now be described, by way of example, with reference
to the accompanying schematic drawings, in which
Figure 1 is a very basic three-dimensional representation of a crate, including a
crate insert, according to the invention, no detail being shown;
Figure 2 is a side elevation of the body of the crate of Figure 1 with the left hand
side of the crate shown in cross-section;
Figure 3 is an end elevation of the body of the crate with the left hand side of the
crate shown in cross-section;
Figure 4 is a plan and underplan view of the body with the left hand side showing
a plan view of half of the crate and the right hand side showing an underplan view
of half of the crate.
Figure 5 is a plan and underplan view of the crate insert with the left hand side
being a plan view of half of the insert and the right hand side being an underplan
view;
Figure 6 is a side elevation of the crate insert;
Figure 7 is an end elevation of the crate insert;
Figure 8 is a cross-section through part of the insert;
Figure 9 is a cross-sectional side elevation of the crate;
Figure 10 is a sectioned plan view showing the manner in which the crate and insert
are located and secured at the end walls of the crate;
Figure 11 is a sectioned plan view showing the manner in which the crate and insert
are located and secured at the side walls of the crate;
Figure 12 is a cross-sectional side elevation of an alternative base for a crate.
[0012] Referring to Figures 1 to 11 of the drawings in more detail, a bottle crate 10 comprises
a one part moulded plastic body 12 and a one part moulded plastic crate insert 14.
[0013] The body 12 has a base 16 providing floor surfaces 18 for supporting bottles located
in the crate and substantially flat carrier surfaces 20 for resting on the tops of
bottles in a subjacent crate of similar construction.
[0014] To provide the floor surfaces 18 and carrier surfaces 20, the base 16 is suitably
shaped to provide lower base parts 16.1 containing openings 16.11 and on which the
crate can stand when it is not supported on bottles in a lower crate, upper base parts
16.2 providing the floor surfaces 18, carrier surfaces 20, a web-bearing grid 16.3,
and connecting strips 16.4 connecting the upper and lower base parts 16.1 and 16.2.
[0015] The connecting strips 16.4 themselves comprise peripheral strips 16.41 connecting
the lower base parts 16.1 to a peripheral wall structure 24 of the body, inclined
base strips 16.42 connecting the lower base parts to those upper base parts providing
the floor and carrier surfaces 18 and 20 and forming inclined surfaces 16.43 allowing
the crate to slide onto and off the tops of bottles in a subjacent crate, and more
upright strips 16.44 connecting the lower base parts 16.1 to the web-bearing grid
16.3.
[0016] Because those upper base parts 16.2 providing the carrier surfaces 20 can be subjected
to considerable forces, they are provided with integral strengthening cruciform formations
18.1.
[0017] The base is provided with webs 22 fixed on the web-supporting grid 16.3 and to the
wall structure 24, which serve to restrain sagging of the base and also serve to separate
the bottoms of bottles received in the crate.
[0018] The peripheral wall structure 24 encircles the base 16. The wall structure is formed
by a peripheral wall 26 and upright hollow pillars 28. As shown in Figure 4, the peripheral
wall is substantially rectangular in plan view and comprises end walls 26.1 and side
walls 26.2 connected by rounded corners. The pillars 28 are moulded integrally with
the walls 26.1 and 26.2 and serve to strengthen these walls. Each of the pillars has
a cross-section which is approximately one half of an octagon, seen in plan view.
The webs 22 extend from and are moulded integrally with the pillars.
[0019] Hand grip formations 30 which are suitably reinforced by a peripheral bead 30.1 and
border openings 30.2 are provided by the end walls 26.1 and enable the crate to be
lifted.
[0020] It will be seen that the body is thus a one-part moulded unit and it may be relatively
thin-walled. However, as the walls of the crate area made primarily from a single
layer of plastics material, the body may flex excessively when used to carry full
bottles. It is therefore desirable to strengthen the crate. In addition, it is also
desirable to make provision for keeping the upper parts of the bottles apart. For
these purposes, the crate insert 14 is used.
[0021] The body 12 is provided with locating formations 32 at the upper part of the pillars
28. Each of these locating formations 32 is provided by forming a vertically extending
slot 32.1 in and at the centre of that part of the respective pillar 28 furthest from
the wall 26. This creates two inwardly directed flanges 34 on opposite sides of the
slot 32.1 as shown in Figures 10 and 11. Where the pillars 28 on the end walls 26.1
border the openings 30.2, the pillars are partly omitted, as shown in Figure 3, so
that the slots 32.1 and the flange 34 beneath the opening are relatively short.
[0022] The crate insert 14, which provides a spacer arrangement 14.1 and is designed to
be located in the cavity of the body as shown in Figure 1, has complementary formations
40 and 42 for engaging formations 32 on the side walls and end walls, respectively,
to locate and releasably secure the crate insert with respect of the body. Those formations
40 which engage the formations 32 on the side walls 26.1 are hollow upright formations
extending upwardly from the spacer arrangement 14.1 of the insert and are designed
to fit around the pillars 28 on the side walls. Those formations 42 which are intended
to engage the formations 32 on the end walls 26.1 are formed as hollow uprights at
opposite sides of a respective hand grip 45 and hand grip opening 45.1 at each end
of the crate insert. The opening 45.1 in each hand grip 45 is arranged, in use, to
correspond with the opening 30.2 of a respective hand grip 30 of the crate, as shown
in Figure 1.
[0023] As shown in Figures 5 and 10, the formations 42 each have a central web 42.1 which
extends towards the end wall 26.1 and which has a projecting part 30.21 shaped to
snap into the opening 30.2 at opposite sides of the opening, as shown. This means
that when the insert is pushed into place, the extension of the web into the opening
inhibits removal of the insert. The webs 42.1 are each provided with a locating lip
42.2 projecting away from the opening 45.1 in the insert. Each web 42.1 is located
to fit into the slot 32.1 in the respective pillar 28 and each lip 42.2 is shaped
and located to fit into and close to the inner surface of a respective flange 34 to
locate and secure the formations 42.
[0024] To connect the insert to the side walls, the formations 40 are provided with internal
T-shaped formations 40.1 each comprising a web 40.2 and cross bar 40.3, as shown in
Figure 11. The T-shaped formations engage respective formations 32 at the upper parts
of pillars 28 with the webs 40.2 received in slots 30.1 and bars 40.3 received within
the pillars 28 and against the inner surfaces of flanges 34 as shown in Figure 11.
This locates and secures the formations 40.
[0025] As shown in Figures 1, 6 and 9, the upper part of each formation 40 and 42 has an
inclined part 36 which covers and closes the top of the respective pillar when the
insert is in place. At the top of each part 36 of the formations 40, the formations
are each provided with a notch 38.1. The walls 26.1 are provided with lugs 38.2 which
are located to fit into the notches 38.1 and the formations 40 and notches 38.1 are
fitted into place and engage the lugs 38.2 by a snap fit action. The engagement between
the formations and lugs also serves to retain the insert in the crate body.
[0026] The spacer arrangement 14.1 of the crate is located in the upper part of the cavity
provided by the crate body and is therefore suitably above the floor of the body for
keeping the upper parts of bottles in the crate separated from one another. In this
regard, it will be seen that at the corners of the crate, the crate insert and the
walls of the body jointly define openings into which bottles can fit. Elsewhere, the
crate insert has circular openings 44 for receiving and encircling bottles.
[0027] In order to provide the crate insert with suitable strength for supporting the body
against excessive flexing, the insert is provided throughout a substantial part of
its structure, with an inverted generally concave V-shaped cross-section having strengthening
webs 46 shown in the detailed section of Figure 8. As the crate insert securely engages
the formations 32 and also rests on the pillars 28, suitable construction of the crate
insert can provide the crate with considerable rigidity. This is achieved without
the need for conventional partitions moulded with the body and which can use up considerably
more material.
[0028] The crate shown in the drawing is particularly suitable for use as a beer crate and
has walls which are intended to extend up almost the full height of bottles in the
crate, but to leave a small gap between crates when full crates are stacked one on
top of another. In this way, the surfaces 20 of one crate will rest on the tops of
bottles in a subjacent crate. The fact that the surfaces 20 are provided in recessed
areas will help to stop crates sliding about. The peripheral wall, however, will be
sufficiently high to exclude most of the light from reaching the bottles in the crates.
[0029] In the crate of Figure 12, the body 12 and the insert 14 (not shown) are similar
to those of Figures 1 to 11. However, the body 12 has a base 116 providing floor surfaces
118 for supporting bottles located in the crate and a substantially flat carrier surface
120 for resting on the tops of bottles in a subjacent crate of similar construction.
The floor 118 and surface 120 are provided by the major part of a recessed central
area of t base which is readily visible in Figure 12. The central area is surrounded
by a peripheral border 116.1 which has an inclined wall 116.2 extending away from
the surface 120. The inclined wall 116.2 and surface 120 allow the crate to slide
onto and off the tops of bottles in a subjacent crate.
[0030] The base is again provided with webs 122 which serve to restrain sagging of the base
and also serve to separate the bottoms of bottles receive in the crate.
[0031] Although the crate of Figure 12 is shown with a closed base, which can have certain
advantages, the base may be provided with drainage holes in the peripheral border
116.1.
[0032] Crate bodies of a particular size and shape can be used with a range of inserts so
that different bottles or other containers can be transported. The flat surface 120,
for resting on various containers, can help make this possible. Although the webs
in the specific crate shown may not be suitable for use with a wide range of containers,
it is simple to make a crate with the webs replaced by any suitable reinforcing arrangement
for wider use.
[0033] If it is desirable for crates to rest on one another, the formations 40 and 42 of
the insert may be shaped and formed as extensions of the pillars 28 so that the pillars
and extensions of stacked crates rest on one another and form support columns for
the stacked crates.
1. A crate having a body with a cavity for receiving a plurality of containers and
having a floor structure on which the containers can be supported; characterised by
a crate insert (14) providing a spacer arrangement (14.1) located in the cavity of
the body and suitably above the floor (16) of the body for separating containers in
the crate from one another in normal use.
2. A crate according to claim 1, characterised in that the spacer arrangement (14.1)
of the crate insert (14) is located in the upper half of the crate and alone and/or
together with the body (12) provides openings (44) for receiving containers.
3. A crate according to claim 1 or 2, characterised in that the crate body (12) is
made as a relatively thin-walled body of plastics material and the crate insert (14)
is reinforced (46) for providing the body with support against flexing.
4. A crate according to claim 3, characterised in that the crate insert (14) includes
concave or hollow sections (Figure 8) reinforced by reinforcing webs (46).
5. A crate according to any preceding claim, characterised in that the body (12) and
crate insert (14) are provided with complementary formations (32, 40, 42) for enabling
the crate insert to be secured to the body at various locations for locating the insert
and further strengthening the crate.
6. A crate according to any preceding claim, characterised by carrier means (20, 120)
for engaging and resting on the tops or necks of containers in a subjacent crate.
7. A crate according to claim 6, characterised in that the carrier means comprises
a carrier surface (120) in the form of a substantially flat supporting surface in
a recessed central area of a base of the crate with a peripheral border (116.1) to
limit undesirable sliding of the crate when supported on containers in a subjacent
crate.
8. A crate according to claim 6, characterised in that the carrier means includes
a plurality of carrier surfaces (20) each with a peripheral border (16.43) to limit
undesirable sliding of the crate when supported on containers in a subjacent crate.
9. A crate according to any preceding claim, characterised by means (38.1, 38.2) for
retaining the insert in the body.