[0001] This invention relates to shadow boxes or box frames which are used primarily in
the framing of three dimensional objects behind glass, and more particularly to components
for such shadow boxes.
[0002] Shadow boxes or box frames as they are commonly known in the United Kingdom and elsewhere,
are becoming increasingly popular and are used for framing a wide variety of articles
ranging from small three dimensional articles to large three dimensional articles
as well as, to limited extent, flat art such as paintings and posters. The aesthetic
effects which can be obtained from the Use of shadow boxes have proved widely acceptable
and these can be varied, inter alia, by varying the depth of the box and/(or its planer
size relative to the size of the object being framed.
[0003] Generally shadow boxes are built up within outer frame mouldings using layers of
foam board or other suitable material for spacing apart the matboards which provide
the decorative border immediately surrounding the object framed. By progressively
decreasing the sizes of the openings in successive matboards, as viewed from front
to rear, a variety of pleasing visual-cum-depth effects can be achieved. The framing
operation is generally one requiring skill and care and is also time consuming. The
end product is one that desirably gives the appearance of having been crafted by a
traditional skilled picture framing operator. To date the usual shadow box has largely
been dependent on the depth of the other moulding which accommodates the matboards,
spaced apart as required by foam board or other spacers. The manufacture of such conventional
shadow boxes is both tedious and expensive.
[0004] Recent developments in shadow box framing include the securing of specially moulded
boxes behind conventional outer frame mouldings, thereby, in a large percentage of
cases, facilitating achievement of the required depth while at the same time appreciably
reducing manufacturing time and cost. Such mouldings are described in the specification
of US Patent Application No. 08/454,506. These moulded boxes can be made to have an
inwardly stepped profile so that matboards can be attached down the series of steps
and a backing board fitted to carry the object to be framed attached to any desired
step. Such moulded boxes greatly facilitate shadow box framing operations but have
limitations with regard to planar size and depth in that the overall sizes of frames
achievable is governed by the limited range of moulded box sizes available. Furthermore,
these stepped moulded boxes exclude flat art framing to a large degree.
[0005] It is an object of the present invention to provide at least one component which
can be used in a number of shadow box framing systems which are not limited to surface
size or shape and which can easily be used to provide different stepped depths to
the frame while at the same time greatly reducing or eliminating the need for foam
board, spacers and the like in order to locate successive matboards at the desired
spacings.
[0006] According to this invention there is provided a shadow box component comprising an
elongated profile with a front face, the front face having at least one step therein
extending along its length, and the step having a tread surface and a riser surface.
[0007] Further according to the invention the component includes at least one securing formation
projecting from an edge of the profile parallel to and in a direction opposite to
the step.
[0008] Still further according to the invention there is a groove extending rearwardly from
the step into the riser surface and the groove is co-planer with the tread surface.
[0009] Still further features of the invention provide for there to be a rear face on the
opposite side of the component to the front face and extending in a direction so as
to be inclined clown the steps of the front face, for there to be a passage within
the profile along the length of at least one of the steps and for the profile to include
a formation to provide for severity at the tread surface of the step.
[0010] The invention also provides for an an optional hinge to be formed along the length
of the step and for such hinge to be formed by a line of weakness formed in the profile
at the riser surface of the step.
[0011] Still further features of this invention provide for the edge of the profile opposite
that having the projecting formations to be slotted to receive a supporting bracket
for a complete frame, and the projecting formation is in the form of a lip.
[0012] Still further features of this invention provide for the profile to comprise a number
of complementary sub-profiles which are mutually engageable and which include co-operating
grooves and tenons.
[0013] Still further according to the invention the component includes a plurality of steps.
[0014] Still further according to the invention the profile is an extrusion and preferably
of plastics material.
[0015] Still further according to the invention there is an undercut first recess below
the lower most step, the recess being adapted to accommodate a backing board and there
is an undercut second recess in the inclined surface at the end of the rear face remote
from the first recess.
[0016] These and other features of this invention will become apparent from the following
descriptions of examples illustrated in the accompanying drawings in which:
- Figs 1 and 2
- illustrate in section two different kinds of basic profile fitted to a frame moulding;
- Fig 3
- illustrates a corner connector plug for the profiles of Figs 1 and 2;
- Fig 4
- is a section of a profile which can provide a series of hinges;
- Fig 5
- illustrates a corner connector plus for the profile of Fig 4;
- Figs 6 and 7
- illustrate a hinge of Fig 4 in use;
- Figs 8 and 9
- illustrate sets of complementary interlocking sub-profiles;
- Fig 10
- illustrates a further embodiment of the intention in cross-sectional elevation;
- Fig 11
- illustrates a further embodiment of the invention in cross-sectional elevation; and
- Figs 12a & b
- illustrate two uses of a further embodiment of the invention.
- Figure 13
- is an end elevation of a pair of co-operating shadow box profiles;
- Figures 14 (A) & (B)
- are end elevations of a further embodiment of a shadow box profile;
- Figures 15 (A) & (B)
- are end elevations of further embodiments of shadow box components in use; and
- Figures 16
- illustrates a further embodiment of the invention in cross sectional elevation.
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE DRAWINGS
[0017] As shown in Fig 1 an elongated profile for use in constructing a shadow box is in
the form of plastics extrusion (1) from any suitable plastics material having parallel
front and rear faces (2) and (3). The front face (2) has a stepped profile and the
rear face (3) is inclined in the same general direction as the steps of the profile
(2).
[0018] Each step 17 has a riser surface (18) and a tread surface (19). One edge (4) of the
profile has an outwardly projecting lip (5) extending from the inclined rear face
(3) of the profile.
[0019] The extrusion (1) is shown as fitted into a frame moulding (6) which is shown as
a standard depth ordinary moulding for a picture frame. In dotted lines (7) is indicated
the moulding that would be required for a full depth shadow box moulding.
[0020] As illustrated the shadow box (or box frame) would have a glass panel (8), three
matboards (9) and a backing board (10) on which the object to be displayed would be
mounted. (The number of matboards is optional and can be selected to suit the application
at hand.)
[0021] A feature of the extrusion of this embodiment is a slot (11) into the bottom step
formation to receive the end of a hanging device (12) conveniently in the form of
a bell hanger. The incorporation of the hanger onto the extrusion leaves the surrounding
outer frame moulding (6) free of carrying the weight of the complete frame and display
object.
[0022] This in turn enables relatively thin sectioned and relatively weak outer frame mouldings
(6) to be used in the framing of relatively large and heavy display objects.
[0023] Passages (13) are formed in the length of the extrusion (1) in the bulk of the material
forming each step of the profile.
[0024] Extrusion (1) can be used for shadow boxes of any reasonable size simply by cutting
each profile to length on the mitre at each end and securing the lengths together
by means of connector plugs (14) as illustrated in Fig 3. These plugs (14) can be
inserted in each passage (13) or only in some of them. The plugs impart rigidity to
the assembled mitred lengths of extrusion. Adhesive may be used if desirable or necessary.
Depending on the cross-section of the extrusion used and the amount of material available
for the purpose, other well known methods of securing mitred ends together may be
used, such as, for example, staples or right-angled corner fixing plates, suitably
drilled and threaded and held firmly in position in accommodating slots by means of
screws.
[0025] Figure 1 represents a shadow box (or box frame) suitable for three dimensional objects
whereas the profile (15) illustrated in Figure 2 is more suited to the display of
flat art (16) behind two matboards (9).
[0026] Quite clearly various designs of profile different to extrusion (1) can easily be
provided and each such profile can be used for a large range of overall frame sizes.
[0027] Sometimes it is desirable that the object displayed be changed and this is usually
done either by the tedious process of partially dismantling the shadow box, replacing
the object displayed with another, and rebuilding the frame. Alternatively a completely
new frame is used for the new object. Efforts have been made with the moulded boxes
referred to above to enable the box to be hingedly connected to the frame so that
the box can be simply opened, the object exchanged, and the box reclosed.
[0028] Figures 4, 6 and 7 illustrate extrusions (20) which can be used in shadow box framing
to provide such a hinged assembly.
[0029] Slots (21) extend as shown at right angles to the freed surface (19) of each step
formation. The posts (22) of the slots (21), parallel to the tread surface (19), extend
from the riser surface (18) to near the inclined face (24) of the profile.
[0030] Notches (25) of generally vee shape in section extend towards the ends of posts (22)
of slots (21).
[0031] The extrusion is used in the same manner as described above to provide a box surround
for a shadow box frame and the mitred lengths of extrusion are secured together by
means of corner connector plugs (26) inserted into the slots (21) in the abutting
mitred ends of the lengths of extrusion. These plugs can conveniently be of the form
shown in Figure 5.
[0032] Figures (6) and (7) illustrate on an enlarged scale how the optional hinge operates.
The box frame can be made to hinge at any particular slot (21) by cutting through
the material of the extrusion between notch (25) and the end of the past (22) of slot
(21) around the remaining three sides of the box. The box is then held together by
the residual material between slot post (22) and notch (25) along the uncut side.
This material is inherently sufficiently flexible to enable the box to be swung about
this side to provide access into the box, thereby enabling objects displayed to be
easily interchanged.
[0033] Preferably it will be the top of the frame which provides the hinge. In order to
support the material at the hinge which must now carry the weight of the box and the
object displayed, the end of the notch post (22) is enlarged to circular cross section
as indicated at (27) in Figs 6 and 7. This enables hinge plugs (28) to be used. The
extrusion (29) shown in dotted lines is not essential to the assembly but does provide
increased support to the area around the part (27), thereby strengthening the hinge.
The plugs (28) will of course have mitred ends to enable the three sides of the box
to be swung away from the frame when access into the box is required.
[0034] It will be understood that the box frame above described can be varied in many ways
without departing from the scope of the invention. The profile can be varied and in
fact can be made so a certain number of step formations can relatively easily be severed
from the remainder. This enables a single extrusion to provide different depths of
profile.
[0035] The profile (1) need not be a single extrusion but may be made up of a plurality
of interlocking elongated sub-profiles as shown in Figures 8 and 9. Thus the profile
of Figure 8 can comprise a first sub-profile (30), which includes the lip (5), and
three standard sub-profiles (31) each of which provides a step. The sub-profiles (30
and 31) are connected together by interlocking elongated mutually engageable formations
(32) on the adjacent sub-profile surfaces. A hanger may be attached to the rearmost
sub-profile using a formation (33) for engaging in the recess (34) of the formation
(32).
[0036] Using this construction any reasonable depth of profile may be built up and cut to
lengths to suit the length and breadth of shadow box required.
[0037] Figure 9 shows a construction similar to that of Figure 8 with a sub-profile (30)
including the lip (5) and a single rear sub-profile (34) which includes a plurality
of closely spaced steps (35). This configuration is more suitable for use in the framing
of flat art.
[0038] The profile avoids or largely eliminates the necessity for foam boards or other spacer
materials and by the choice of suitable material can provide desired resilience to
support the glass panel in the frame moulding.
[0039] In the embodiment of Figure 10 a profile (40) includes a front face (41) which has
two intermediate steps (42) and (43) of unequal height as shown, the lowermost step
being of a greater height than the adjacent step.
[0040] A rear face (44) is provided which is inclined in the same general direction as these
steps and which includes an elongated recessed notch (45) therein which is used to
assist in locating the profile on a cutting jig.
[0041] In the embodiment of Figure 11 a profile (50) is made from a lightweight material
such as expanded polystyrene for example.
[0042] The profile (50) includes a front face (51) with one or more steps (52) medially
located therein.
[0043] Behind the front face (51) the profile has the configuration of a right angled section
which provides bulk and strength to the profile which would otherwise be liable to
break because of the relatively weak nature of the material.
[0044] In this instance the profile (50) is shown in use being glued to the periphery of
a suitable backing board (53) and located by way of pins (54) in a suitable frame
(55). A glass (56) is located under the inwardly directed lip (57) of the frame and
three mountboards (58) are fixed to the steps.
[0045] In the embodiment shown by Figures 12a and 12b a profile (60) includes a front face
(61) with several steps (62) therein. The "lower" or innermost step is undercut at
(63) to accommodate a backing board (64) in one orientation as shown in Figure 12a.
The rear face (65) is smooth.
[0046] The orientation of the profile (60) as shown in Figure 12a allows for the plurality
of mountboards (66) as described in previous embodiments together with the glass (67)
and a suitable moulding (68).
[0047] If the profile is reversed as shown in Figure 12b the smooth rear face (65) is innermost
and provides a deep sloping surface which may be painted or covered with mountboard
(69) or suitable fabric.
[0048] In Figure 13 an embodiment according to the invention comprises two co-operating
profiles (71) and (72).
[0049] The first profile (71) has a front face (73) which has a stepped profile and the
rear portion (74) thereof comprises two perpendicular side walls (75) and (76). Below
the last of the steps (77) of the front faces (73) and in the side wall (76) is a
rectangular undercut recess (78). This recess (78) serves to accommodate either a
backing board as described with reference to Figure 12(A) or alternatively serves
to locate a projecting locating formation (79) of the second profile (72).
This second profile (72) is essentially rectangular in shape and has at one corner
the locating projection (79) which is also rectangular in nature and on the adjacent
corner is a rectangular recess (80) which is identical to recess (78) and which can
be used to accommodate a projection (79) of a yet further additional profile.
[0050] Further or alternative locating or interlocking formations may be provided at the
interface of the first and second profiles (71) and (72). An example in the form of
a groove and tenon is shown in broken lines (70).
[0051] It will be appreciated that in this way depth may be provided to the shadow box.
[0052] The profile (81) shown in Figures 14(A) and 14(B) is similar to that of Figure 13
except that in addition to the stepped front face (82) it includes an inclined rear
face (83) which enables the profile to be used in both orientations shown in the drawing
and in a manner similar to the embodiment shown in Figures 12(A) and 12(B).
[0053] Additionally to the embodiments of Figures 12(A) and 12(B) the present embodiment
not only includes the undercut or recess (63) but a further rectangular recess (84)
which then may accommodate a backing board for example when the profile is used in
the orientation shown in Figure 14(B) that is with the sloping face being utilised
within the shadow box.
[0054] The profile (85) shown in Figures 15(A) and 15(B) once again includes a plurality
of sub-profiles (86) which are stacked together in a similar manner to those of Figure
8, however instead of having positive interlocking means they include stepped formations
(87) in their mating surfaces (88). These stepped formations (87) serve to positively
locate the sub-profiles with respect to each other. The profiles are preferably glued
together in this condition.
[0055] As shown in Figure 15(A) in the first orientation the profile (85) may be used with
the stepped face (89) directed into the interior of the shadow box to provide support
for matboards (90). The backing board indicated by numeral (91) and the glass and
frame by numeral (92) and numeral (93) respectively. In the reversed condition as
shown in Figure 15(B) the inclined rear surface of the profile (85) made of sub-profiles
(86) is directed inwardly as the inclined surface provides a support for a cove mat
(93) as previously described.
[0056] The profile (95) shown in Figure 16 includes a stepped front surface (96) with two
steps (17).
[0057] Co-planer with each of the tread surfaces (19) of the steps (17) are grooves (97)
of rectangular cross section which extend into the riser surface (18). There is a
undercut rectangular recess (98) at the base (99) for accommodating a backing board
(100).
[0058] The purpose of the grooves (97) is to accommodate either glass or matboards. In the
present instance the groove (97) of the uppermost step (17) locates a frontal sheet
of glass (101) and the other groove (97) locates a matboard (102). The object to be
displayed (not shown) is then located adjacent the backing board (100).
[0059] By means of this construction one can alternatively do away with the need of an outer
frame with the top edge (103) being satisfactorily decorated to provide this frame.
It should of course be noted that a frame may be provided at this position in much
the same way as the frames in the upper embodiments are provided. Such a frame is
shown in dotted lines and is indicated by numeral 104.
[0060] The invention is simple to use, provides a wide variety of framing opportunities,
and does not depart dramatically from conventional shadow box framing methods and
aesthetic appearances.
1. A shadow box component comprising an elongated profile with a front face, the front
face having at least one step therein extending along its length, and the step having
a tread surface and a riser surface.
2. A component as claimed in claim 1 characterised in that it includes at least one securing
formation projecting from an edge of the profile parallel to and in a direction opposite
to the step.
3. A component as claimed in either of clams 1 or 2 characterised in that there is a
groove extending rearwardly from the step into the rise surface.
4. A component as claimed in clam 3 characterised in that the groove is co-planer with
the tread surface.
5. A component as claimed in any of the preceding claims characterised in that there
is a rear face on the opposite side of the component to the front face and extending
in a direction so as to be inclined in the same general direction as the steps of
the front face.
6. A component as claimed in any of the preceding claims characterised in that there
is at least one passage within the profile along the length of at least one of the
steps.
7. A component as claimed in any of the preceding claims characterised in that there
is an elongated recessed notch in the rear face.
8. A component as claimed in any of the preceding claims characterised in that the profile
includes a formation to provide for easy severability at the tread surface of the
step.
9. A component as claimed in any of the preceding claims characterised in that there
is a hinge formed along the length of the step.
10. A component as claimed in claim 9 characterised in that the hinge is formed by a line
of weakness formed in the profile at the riser surface of the step.
11. A component as claimed in any of the preceding claims characterised in that a face
of the profile adapted to be at the rear of a shadowbox is slotted to receive a supporting
bracket for a complete frame.
12. A component as claimed in claim 2 characterised in that the projecting formation is
in the form of a lip.
13. A component as calmed in any of the preceding claims characterised in that the profile
comprises a number of complementary sub-profiles which are mutually engageable.
14. A component as claimed in claim 13 characterised in that the sub profiles are mutually
engageable by means of grooves and tenons.
15. A component as claimed in any of the preceding claims characterised in that it includes
a plurality of steps.
16. A component as claimed in any of the preceding clams characterised in that the profile
is an extrusion.
17. A component as claimed in any of claims 1 to 15 characterised in that the profile
is made from wood.
18. A component as claimed in any of claims 1 to 15 characterised in that the profile
comprises a plurality of complementary sub-profiles including locating formations.
19. A compound as claimed in claim 18 characterised in that the sub-profiles are glued
together.
20. A component as claimed in any of the preceding claims charactersed in that there is
an undercut first recess below the lower most step, the recess being adapted to accommodate
a backing board.
21. A component as claimed in claim 20 as appendant to claim 5 characterised in that there
is an undercut second recess in the inclined surface at the end of the rear face remote
from the first recess.
22. A shadow box comprising a frame, a glass panel, at least one mat board, a backing
board and a plurality of components as claimed in any preceding claim secured to said
frame, the arrangement being such that the glass panel, at least one mat board and
backing board are secured to said components.
23. A shadow box as claimed in claim 22, characterised in that the free ends of neighbouring
components are secured to each other by means of connector plugs.