[0001] The present invention concerns an advertising standard for mounting and stretching
posters and of the kind indicated in the preamble of claim 1.
[0002] Prior art advertising posters for suspending large advertising displays or posters
have very complicated structure, why they are expensive and cumbersome to work with,
due to i.a. that by prior art advertising standards it is also necessary to use cover
sheets of transparent material, e.g. acrylic or glass, which particularly in the case
of very large advertising displays, e.g. of the magnitude (1600 x 2200) mm imply large
extra costs.
[0003] A prior art advertising standard, where the frame sections consist of metal sections
having mainly triangular cross-section, and which at abutting ends are cut to mitre,
has appeared to be a substantial improvement as the frame sections together form a
strong external holding frame.
[0004] The invention has the purpose of indicating an advertising standard for mounting
and stretching large posters and of the kind mentioned in the introduction, and which
by means of simple measures facilitate mounting and stretching large advertising displays
or posters, particularly on detached advertising standards.
[0005] The advertising standard according to the invention is characterised in that the
girder near and along an upper edge area of the support board is provided with a particularly
profiled holder strip which, together with the girder form a holder groove arranged
to receive and fix an upper thickened edge section of a poster, and that the support
board is provided with a bottom strip along a bottom edge, in which there is fastened
a number of tightening means adapted for interacting with a lower holder section,
which is provided with a holder groove at least at the top, the groove being arranged
to receive and fix and lower thickened edge section of the poster.
[0006] By means of simple measures it hereby becomes easier to mount and stretch large advertising
displays or posters, particularly on detached advertising standards. It has thus appeared
inter alia that large advertising displays printed on woven cloth of textile or synthetic
fibre, plastic film or moist-resistant paper with good durability may be mounted without
any problems and may continuously be kept stretched by means of a device according
to the invention.
[0007] Suitably, the advertising display according to the invention is thus designed that
the lower holder section is made symmetrical with an upper and a lower holder groove.
[0008] The advertising standard according to the invention is preferably designed so that
the bottom strip is formed with protruding flanges arranged to constitute lower fastenings
for a number of tightening devices in the form of special tightening bolts, tightening
springs or simple threaded screws.
[0009] Alternatively, the advertising standard according to the invention is designed so
that the tightening bolts comprise an end part with a transverse, cylindrical holder
part which is arranged for being received in a lower holder groove of the holder section.
[0010] Or, the advertising standard according to the invention is thus made so that a lower
holder section is formed upwards with an upper holder groove and formed downwards
with a number of threaded holes arranged for receiving threaded ends for lugs or tightening
screws in the shape of simple threaded screws.
[0011] According to a further alternative embodiment, the advertising standard according
to the invention is shaped so that the tightening means comprise tightening springs
the lower ends of which are connected with a projecting flange of the bottom strip,
and the upper end of which is connected with connecting parts comprising holder parts
arranged to be received in lower holder groove of the holder section.
[0012] The invention is explained in more detail in the following in connection with the
drawing on which:
- Fig. 1
- shows a plane front view of an embodiment of an advertising standard according to
the invention for mounting and stretching posters,
- Fig. 2
- shows a side view, partly in section, of the advertising standard in Fig. 1 according
to the invention,
- Fig. 3
- shows an enlarged side view of the advertising standard in Figs. 1 and 2 according
to the invention,
- Fig. 4
- shows an enlarged part section of a bottom strip of a lower edge part of a support
board of an advertising standard, cf. Fig. 1,
- Fig. 5
- shows an enlarged part section of an upper holder strip of an advertising standard
for fixing an upper thickened edge part of a poster,
- Fig. 6
- shows an embodiment of a lower holder strip for fixing a lower, thickened edge part
of a poster and a number of tightening devices between the holder strip and a lower
bottom strip of an advertising standard,
- Fig. 7
- shows a second embodiment of tightening devices between the holder strip and the bottom
strip of an advertising standard,
- Fig. 8
- shows a perspective part view of a preferred embodiment of a bottom strip by an advertising
standard according to the invention, and
- Fig. 9
- shows a plan view of a preferred embodiment of a tightening means for fastening the
bottom strip in Fig. 8 according to the invention.
[0013] The advertising standard 2 shown in Figs. 1 - 3 is built up of strong sections, e.g.
of stainless steel with mainly triangular cross-section, in the shape of two vertical
uprights 4, which are fastened in the ground, and a horizontal girder 6, which are
mutually mitred and assembled around a rectangular support board 8 of plywood, MDF-board,
or corresponding material with a smooth surface so that the support board 8 is fixed
along three outer edges in an inward facing slit between the lateral flanges of the
uprights 4 and the girder 6.
[0014] Along the bottom edge of the support board 8, as shown in Figs. 4, 6 and 7, there
is fastened a bottom strip 10 with protruding flanges 12 in which a number of tightening
devices 13 in the form of special tightening bolts 14 or springs 16 are attached at
the bottom. The tightening devices 13 upwardly engage a lower holder section 18 which
at least upward is provided with a recessed holder groove 20 arranged to receive and
fix a lower thickened edge section 22 of a poster 24. Downwards, the holder section
18 has either a corresponding recessed holder groove 21 for receiving cylindrical,
transverse holder parts 23 of the tightening bolts 14 (Fig. 6). Alternatively, the
holder section 18 is provided with a number of threaded holes arranged for receiving
either threaded ends of lugs in connection with the tightening springs 16 (Fig. 7)
or for receiving simple threaded screws 15 (Fig. 4).
[0015] Besides, in Fig. 7 is shown that the tightening springs 16 may be connected upwards
with connecting part s 25 with cylindrical transverse holder parts 27 which are arranged
for being received in a lower recessed holder groove 21 of the holder section 18.
[0016] Upwards, as shown more clearly in Fig. 5, the poster 24 has also a thickened upper
edge section 26 which is arranged for being inserted and fixed between a lower side
edge section of the girder 6 and a specially profiled holder strip 28, which is fastened
to the said side edge section of the girder 6 close to the support board 8 so that
the poster 24 may be stretched along the surface of the support board 8. The length
of the holder strip 28 is adapted so that there is a certain distance between the
opposite end parts of this and the uprights 4, i.e. so that there will be enough space
to insert the thickened upper edge section 26 of the poster 24 behind the holder strip
28. Possibly, at an end part opposite the insertion end, the holder strip 28 may comprise
a stop device ar-ranged for interacting with an end part of the thickened edge section
26 so that the poster 24 is automatically centred in relation to the support board
8.
[0017] The bottom strip 30 shown in Fig. 8 has protruding lateral flanges 32 and is fastened
along the bottom side edge of a support board 8. In both lateral flanges 32, the bottom
strip 30 is provided with special fastening holes 34 having side apertures 36 opening
at outer side edges 38 of the lateral flanges 32. The fastening holes 34 are arranged
for receiving special, mainly cylindrical locking bolts 40 which are formed with a
waist 42 enabling the insertion of the locking bolts 40 through the side apertures
36 so that a lower cylinder part 43 may be fixed in the fastening holes 34, kept in
place by a disc-shaped stop plate 45. Below the cylinder part 43, the locking bolts
40 have stop plates 45 with an eye-shaped handle 44. Upwards, the locking bolts 40,
above the waist 42, is provided with an connecting eye 46 for a tensile spring 48,
the opposite end (not shown) of which is connected with the lower holder section 18,
e.g. by means of connecting parts 25 with cylindrical transverse holder parts 27 which
are arranged for being received in the lower recessed holder groove 21 of the holder
section 18 (Fig. 7).
[0018] It is very easy to mount and keep tight the lower edge of a poster 24 which beforehand
has been fastened in the upper holder groove 20 of a holder section 18, by in turn
inserting the locking bolts 40 through the side apertures 36, so that by the upward
directed pull in the spring 48, the upper end of which is already connected with the
lower holder groove 21 of the holder section 18, the lower cylinder part 43 will automatically
slide in place and be fixed in the fastening holes 34. Correspondingly, it will very
easy to dismount the locking bolts 40 by a downward pull before the locking bolts
can be removed through the side apertures 36.
[0019] The described tightening principle may be used more generally in connection with
MegaBoard™ or MegaStander™ for stretching and keeping tight large advertising displays.
1. An advertising standard for mounting and stretching posters, the standard (2) being
built up of strong sections with mainly triangular cross-section in the form of two
vertical uprights (4), which are fastened in the ground, and a horizontal girder (6),
the sections being mutually mitred and assembled around a rectangular support board
(8) at opposite sides of which advertising displays, e.g. large posters, are intended
to be mounted in stretched condition, characterisedin that the girder (6) near and along an upper edge area of the support board (8)
is provided with a particularly profiled holder strip (28) which, together with the
girder (6) form a holder groove arranged to receive and fix an upper thickened edge
section (26) of a poster (24), and that the support board (8) is provided with a bottom
strip (10) along a bottom edge, in which there is fastened a number of tightening
means (13) adapted for interacting with a lower holder section (18), which is provided
with a holder groove at least at the top, the groove (18) being arranged to receive
and fix and lower thickened edge section (22) of the poster (24).
2. An advertising standard according to claim 1, characterisedin that the lower holder section (18) is made symmetrical with an upper and a lower
holder groove (20).
3. An advertising standard according to claim 1, characterisedin that the bottom strip (10) is formed with protruding flanges (12) arranged to constitute
lower fastenings for a number of tightening devices (13) in the form of special tightening
bolts (14), tightening springs (16) or simple threaded screws (15).
4. An advertising standard according to claims 1 - 4, characterised in that the tightening bolts (14) comprise an end part with transverse, cylindrical holder
part (23) which is arranged for being received in a lower holder groove (21) of the
holder section (18).
5. An advertising standard according to claim 1, characterisedin that a lower holder section is formed upwards with an upper holder groove (20)
and formed downwards with a number of threaded holes arranged for receiving threaded
ends for lugs or tightening screws in the shape of simple threaded screws (15).
6. An advertising standard according to claim 1, characterisedin that the tightening means (13) comprise tightening springs (16) the lower ends
of which are connected with a projecting flange (12) of the bottom strip (10), and
the upper end of which is connected with connecting parts (25) comprising holder parts
(23) arranged to be received in lower holder groove (21) of the holder section (18).