[0001] This invention relates to a play tunnel structure, and in particular to collapsable
play tunnel structures.
[0002] These tunnel structures provide passageways through which children can crawl and
safely play. However, these tunnel structures are not limited to use by children,
and may also be used by adults or pets. In their collapsed state these tunnels can
be easily transported and stored.
[0003] A known type of play tunnel structure provides straight tunnel passageways through
which children can crawl. They are made from covering a helically-shaped looped structure
with material to form a tunnel passageway.
[0004] It is also known to have separate connectors on to which tunnel structures are attached.
These separate units can then be linked together by straight tunnel structures, similar
to those mentioned above. Accordingly, these separate connectors are used to change
direction of the tunnel.
[0005] However, children soon become bored and disinterested with straight tunnels as they
can see through the exit at the opposing end which limits their enthusiasm for adventure.
Furthermore, straight tunnel structures having predetermined lengths and having separate
connectors are often difficult to assemble in confined areas or indoors.
[0006] An object of this invention is to provide a play tunnel which is capable of being
adapted to provide bends in the tunnel passageway and which is also capable of being
collapsable for ease of transportation and storage.
[0007] The present invention provides a collapsable tunnel structure comprising a plurality
of loops which are moveable in relation to each other, and a covering supported by
the loops to define a tunnel passageway, characterised in that the plurality of loops
comprises an elongate strip formed into a helical member as a first tunnel structure,
to at least one end of which is connected a second tunnel section the axis of which
may be set at an angle with respect to that of the first tunnel section to thereby
form a bend in the tunnel passageway
[0008] The present invention also provides a collapsable tunnel structure comprising a plurality
of loops which are moveable in relation to each other, and a covering supported by
the loops to define a tunnel passageway, characterised in that the tunnel structure
comprises gathering means attached at intervals along the wall of the tunnel structure,
at at least one corresponding circumferential position of the loops, for gathering
at least two loops at that circumferential position to thereby form a bend in the
tunnel passageway.
[0009] The plurality of loops may comprise a helical member in combination with discrete
wire rings.
[0010] Advantageously, the tunnel structure may comprise of at least two discrete rings
disposed between a first helical loop structure and a second helical loop structure.
[0011] The loops may be formed from a metal or a plastics material.
[0012] The covering may comprise at least one sleeve wherein the loops are retained, thereby
supporting the covering to provide a tunnel passageway.
[0013] The covering may at least partially comprise a mesh material and may be at least
partially opaque or transparent.
[0014] The tunnel structure may be collapsable along a longitudinal axis and may have means
for securing it in a collapsed state.
[0015] The present invention will be described further, by way of example, with reference
to the accompanying drawings in which:
Figure 1 is a perspective view of a collapsable tunnel structure shown in a straight
extended state according to the present invention;
Figure 2 is a plan view of a collapsable tunnel structure as shown in figure 1;
Figure 3 is a perspective view of the tunnel structure as shown in Figures 1 and 2,
showing the tunnel structure secured in a collapsed state;
Figure 4 shows a loop having ties attached to its circumference;
Figure 5 is a perspective view of the tunnel structure, as shown in Figures 1 to 3,
showing bends formed in the tunnel passageway.
[0016] Referring to Figures 1 and 2, a repeated section (10) of a collapsable play tunnel
structure (11) according to the present invention comprises wire loops (12) supporting
a flexible material covering (14) thereby forming a tunnel passageway.
[0017] The material covering (14) comprises sleeves sewn around its circumference in which
the wire loops (12) are retained. The material covering (14) is advantageously a woven
or mesh material and may be opaque or transparent, or a combination of the two.
[0018] The loops (12) comprise a first discrete ring (16) and a second discrete ring (18),
disposed between a first helical member (20) and second member (22). The discrete
rings (16), 18) are moveable in relation to each other and both are also moveable
in relation to the helical members (20, 22).
[0019] The first helical member (20) comprises a proximate end (24) and a distal end (26)
both of which are formed into a ring (28, 30) respectively (a shown in Figure 4).
[0020] The proximate end ring (28) comprises a first tie (32) and a second tie (34) each
attached at opposing positions on the circumference of the proximate end ring (28).
In other embodiments a greater number of ties may be attached. The distal end ring
(30) also comprises a first tie (36) and a second tie (38) which are attached in positions
as described for the proximate end ring (28), hereinbefore.
[0021] The first discrete ring (16) comprises a first eye (40) and a second eye (not shown)
which are attached at opposing positions on the circumference of the discrete ring
(16), to correspond with the first and second ties (32, 34) attached to the proximate
end ring (28).
[0022] The second discrete ring (18) also has a first eye (42) and a second eye (not shown).
The first eye (42) and the second eye (not shown) are attached in positions on the
circumference of the second discrete ring (18) to correspond with the first eye (40)
and the second eye (not shown)which are attached to the first discrete ring (16),
and the first tie (32) and the second tie (34) which are attached to the proximate
end ring (28).
[0023] The second helical member (22) comprises a proximate end (44) and a distal end (46),
both of which are formed into a ring (47, 48) respectively, as hereinbefore described
in relation to the first helical member (20).
[0024] The proximate end ring (47) comprises a first eye (48) and a second eye (not shown).
The first eye (48) and the second eye (not shown) are attached on the circumference
of the proximate end ring (47) to correspond with the first eye (42) and the second
eye (not shown) attached to the second discrete ring (18); the first eye (40) and
the second eye (not shown) attached to the first discrete ring (16); and the first
tie (32) and the second tie (34) attached to the proximate end ring (28) of the first
helical member (20).
[0025] To form a bend in the tunnel passageway the first tie (32) is threaded through the
first eye (40), disposed on the first discrete ring (16), then through the first eye
(42), disposed on the second discrete ring (42), and finally through the first eye
(48), disposed on the proximate end ring (46) of the second helical member (22). The
rings (28, 16, 18, 46) are then gathered at that common circumferential position,
at which the tie (32) and the eyes (40, 42 and 48) are attached, to form a bend in
the tunnel passageway, as shown in Figure 5. The rings (28, 16, 18, 46) can be temporarily
secured in this position by knotting the tie (32).
[0026] The play tunnel structure (11) can be collapsed along a longitudinal axis into a
smaller state (50), as shown in Figure 3. This is carried out by compressing one end
of the tunnel structure (11) against the opposing end. Once the tunnel structure has
been collapsed into a smaller state it can be secured in that state using the first
tie (36) and the second tie (38) disposed on the distal ring end (30) of the first
helical member (20).
1. A collapsable tunnel structure comprising a plurality of loops (12) which are movable
in relation to each other, and a covering (14) supported by the loops to define a
tunnel passageway, characterised in that the plurality of loops comprises at least one helical member (20) forming with the
covering (14) a first tunnel section, to at least one end of which is connected a
second tunnel section (14, 16) the axis of which may be misaligned with respect to
that of the first tunnel section to thereby form a bend in the tunnel passageway.
2. A collapsable tunnel structure as claimed in Claim 1, wherein the second tunnel section
comprises at least one discrete ring (16) which is movable in relation to the first
tunnel section (20), the covering (14) being supported by the, or each, ring (16)
to form a tunnel passageway.
3. A collapsable tunnel structure as claimed in Claims 1 or Claim 2, comprising a third
tunnel section (14, 22) which is connected to the second tunnel section (14, 16) at
an opposite end to the first tunnel section (14, 20).
4. A collapsable tunnel structure as claimed in Claim 3, wherein the third tunnel structure
comprises at least one helical member (22).
5. A collapsable tunnel structure as claimed in any of the preceding claims wherein the
loops (12) are formed from a flattened metallic strip material.
6. A collapsable tunnel structure as claimed in any of the preceding claims wherein the
covering (14) comprises a plurality of sleeves wherein the loops (12) are retained.
7. A collapsable tunnel structure as claimed in any of the preceding claims wherein the
tunnel is collapsable along a longitudinal axis.
8. A collapsable tunnel structure as claimed in any of the preceding claims including
means (36, 38) for securing the tunnel structure in a collapsed state.
9. A collapsable tunnel structure as claimed in any of the preceding claims, wherein
at least one tunnel section comprises gathering means (32, 34, 36, 38, 40, 42, 48)
attached at intervals along the wall of the tunnel, at at least one corresponding
circumferential position of the loops (12), for gathering at least two loops at that
circumferential position to thereby form a bend in the tunnel passageway.
10. A collapsable tunnel structure as claimed in Claim 9, wherein the gathering means
comprises at least one tie (32, 34, 36, 38) in combination with at least one eye (40,
42, 48).
11. A collapsable tunnel structure comprising a plurality of loops (12) which are movable
in relation to each other, and a covering (14) supported by the loops to define a
tunnel passageway, characterised in that the tunnel structure comprises gathering means (32, 34, 36, 38, 40, 42, 48) attached
at intervals along the wall of the tunnel passageway, at at least one corresponding
circumferential position of the loops (12), for gathering at least two loops at that
circumferential position to thereby form a bend in the tunnel passageway.