GB2183884A - Poster frame - Google Patents

Abstract

A poster frame displaying paper or other sheet disposed beneath a rigid transparent acrylic or glass sheet or an encapsulated display, or an outdoor laminated sheet having an adhesive on its rear surface comprises a latch 102 for retaining either a separate inner frame supporting a poster backing 86 or a separate inner frame portion housing a seal 174. <IMAGE>

Description

SPECIFICATION Poster frame This invention relates to a poster frame, and a like frame could be employed for displaying boards or sheets of material bearing advertising matter or information, or for displaying pictures or photographs. In this application, the word "poster" and the phrase "poster frame" are to be construed accordingly.

It is desirable to have a poster frame in which the material which is displayed can readily be changed. In addition, as poster frames are often in public places, it is desirable to have a frame which is resistant to damage or vandalism and is reasonably weatherproof.

According to the present invention, there is provided a poster frame designed for multipurpose use, that is to say for receiving and displaying any one of several kinds of display media, for example a paper or other sheet disposed beneath a rigid transparent acrylic or glass sheet (normally acrylic would be preferred for durability) or an encapsulated display, or an outdoor laminated sheet having an adhesive on its rear surface. By an encapsulated sheet is meant a sheet of paper or other material placed between two plastics sheets which are then peripherally welded or bonded together, so encapsulating the paper in a weatherproof manner.By an outdoor laminated sheet is meant a sheet of paper, cardboard or other material carrying information or illustrations on one surface, there being a layer or film of transparent plastics material laminated over that surface so as to render it weatherproof under outdoor conditions.

Also according to the invention, a poster frame is rectangular in shape and at least two opposed limbs of the frame are hollow and each contains one or more latch mechanisms constructed to retain the frame in position in relation to a support (herein also called a back frame) on which the poster is displayed.

Further according to the invention, a poster frame has a frame member which surrounds the poster and has an inner portion and an outer portion, the inner portion having a peripheral sealing pad located to engage a peripheral region of the poster and an outer portion which is hollow and contains therein a latch mechanism constructed to secure either the inner portion to the outer portion (in a case where the inner and outer portions are separable) or the frame member to a backing support plate which carries the poster (in a case where the inner and outer portions of the frame member are made in one piece).

In one preferred embodiment of the invention, the frame is made up of 4 limbs of extruded profile, e.g. of aluminium or aluminium alloy or extruded synthetic plastics material.

The poster is carried by a back frame supported by a rectangular support frame which is fixed e.g. by bolting or screwing, to a wall or hoarding. Each limb is preferably a relatively complex extrusion whose characteristics are seen best from the drawings filed herewith. A preferred extrusion preferably includes a recess to receive a poster edge clamping and sealing member and further recesses to receive a latching mechanism.

According to one aspect of the present invention, there is provided a poster frame having two frame parts, one of which fits within the other, the two parts being held together by a latch mechanism which is wholly located within a hollow portion of the outer frame part. It is preferred that the latch mechanism be operated only by use of a special tool. The latch may be of a resilient plastics material.

In a preferred version of this aspect of the invention, each frame part is constructed of a metal or plastics extrusion. The outer frame extrusion may have a substantially closed channel region within which is located part of one or more latch members. Each such latch is located adjacent a slot in such a way that a tongue of the latch normally extends from the slot, and serves in use to hold the inner frame part within the outer frame part. When the latch is of springy plastics material, it is deformed to withdraw the tongue of the latch to release the inner frame portion.

In an advantageous embodiment of the invention, a cushioning or sealing strip or pad or gasket may be located in or on the outer frame member, in such a position as to support and seal against an underside marginal portion of the poster or display media. There may also be a sealing strip, pad, or gasket on the inner frame member which bears against the top surface of a marginal region of the poster.

In a specially preferred embodiment of the invention, the mechanism of a latch which holds the inner frame member within the outer frame member, or which holds the frame member in position on a support, is formed by one part which in use reciprocates laterally of an elongate extruded limb of the frame, and this movement is caused by longitudinal movement of a second part of the latch mechanism, the second part being located within the extruded limb. More than one such latch is preferably employed, the total number depending on the size and configuration of the poster frame.

The invention will be better understood from the following non-limiting description of examples thereof given with reference to the accompanying drawings in which: Figure 1 is a front view of a prior proposal of a poster frame made up of an outer fixed frame part and an inner removable frame part; Figure 2 is a cross-section through one side of the frame of Figure 1 showing the frame parts assembled together, the section being taken at the location of a latch; Figure 3 is a like cross-section showing only the outer frame part at a corner region; Figure 4 is a like cross-section showing the inner frame part; Figure 5 is a front view on an enlarged scale of one possible design of latch and a special key for releasing same and for use with the outer and inner frame of Figs. 1-5; Figure 6 is a cross-sectional view similar to Figures 2-4 illustrating a second prior proposal;; Figure 7 is a cross-sectional view taken in a horizontal plane of a back support (also called a back frame) usable with an embodiment of the present invention; Figure 8 is a cross sectional view of one limb of a poster frame according to the Fig.7 embodiment of the invention; Figure 9 illustrates in cross-section the poster frame of Figure 8 assembled together with the back support of Figure 7; Figures 10 and 11 are respectively plan and side elevation views of a latch for use in the embodiment of the invention shown in Figs.

7-9; and Figures 12 and 13 are respectively plan and side elevation views of a slidable latch actuating member for actuating the latch of Figures 10 and 11; Figure 14 is a transverse cross-section through an elongate extrusion for use as the top member of a rectangular poster frame according to a second embodiment of the invention; Figure 15 is a transverse cross-section through one limb of a back frame which is usable with the extrusion of Figure 14; Figure 16 is not to scale and diagramatically illustrates the interengagement of the extrusions of Figures 14 and 15; Figure 17 is a transverse cross-section through an elongate extrusion for use as the right side or left side or bottom member of a poster frame according to the second embodiment of the invention;; Figure 18 is a transverse cross-section through a limb of a back frame which can be either the right or left side member or the bottom member and which is intended to cooperate with the extrusion of Figure 17; Figure 19 diagramatically illustrates the extruded members of Figures 17 and 18 in their mutually engaged position, being so held by a latch in its locking position; Figure 20 is a transverse cross-section through an extrusion for forming the limbs of an inner frame member according to a third embodiment of the invention; Figure 21 is a similar cross-section through an extrusion for forming the limbs of an outer frame member intended to mate with the inner member shown in Figure 20; and Figure 22 diagramatically illustrates the limbs of Figures 20 and 21 in their mutually interengaged position.

In the drawings, like parts are given like reference numerals.

The illustrated frame has an outer frame part 10 (Figs. 1-4) which is rectangular and an inner frame part 12 which is also rectangular and fits within the frame part 10. A board or panel 14 constituting a display medium is clamped in use between the parts 10 and 12 and carries a poster, picture, photograph or other information-carrying sheet which is to be displayed.

The inner frame part is made up of four lengths of extruded channel section (e.g. of metal such as aluminium alloy or of a synthetic plastics material) which are suitably mitred and joined at the corners to produce a rectangular frame. One method of joining at the corners is to provide L-shaped planar connecting pieces 16 whose two limbs can each be pushed into an open end of a respective one of the lengths of extruded section. The section preferably used for the inner frame part 12 is seen best in Figure 4 and has a sloping visible wall 20, an outer wall 22, and a downwardly depending portion 24 which defines a laterally open groove 26.

A preferred embodiment of a section for the outer frame part 10 is seen in Figure 3 and has a base walk 30, a locating rib 32, an upstanding inner frame locating wall 34, a sloping wall 36, an outer wall 38, and flanges 40, 41, 42 and 48 which together partly define a rectangular space for receiving the outer L-shaped connecting pieces 16. Adjacent to the rib 32, and on the inner side of it, are located an inwardly-directed rib 44 and a flange 45 provided for the purpose of helping locate a sealing pad or gasket 46 of a compressible weatherproof material, for example that known by the trade name "TESAMOL".

On the outer side of the inner frame locating wall 34 are provided two ribs 48 and 49 which project into the partly-enclosed space defined by the walls 34, 36 and 38. These ribs, with the flange 42, serve to locate latches 50, Figures 2, 3, and 5.

One such latch is best seen in Figure 5 and in this embodiment of the jnvention is made wholly of synthetic plastics material. It has springy limbs 52 and a latch blade 54. The blade 54 projects through a slot 56 in the wall 34, and the springy nature of the limbs 52 urge the latch in the direction of the arrow 58, Figure 5. The latch is substantially planar in shape and has a central hole 60 to receive the end 62 of a special tool 64 which is used to retract the latch, by pulling in a direction opposite to the arrow 58, against the spring force of the limbs 52. This retraction movement withdraws the latch blade from the groove 26 in the inner frame member, so allowing the inner and outer frame members to be separated, as is of course necessary when changing the poster on the panel 14, or when changing the board or panel 14 itself.It will be appreciated that the sloping surface 66 (Figure 4) on the depending portion 24 bears on the latch 50 as the inner frame part 12 is moved from its separated position shown in Figure 3 to its assembled position within the outer frame part 10 as seen in Figure 2 or Figure 6, and the sloping surface 66 pushes the latch 50 to its retracted position during this movement. The converse separating movement is normally precluded by engagement of the latch blade 54 within the groove 26. However, by inserting the tool 64 through a slot or hole appropriately located in the outer wa1138, inserting its end 62 in the hole 60, and pulling outwardly, the latch blade 54 can be withdrawn so that the inner and outer frame parts 10 and 12 can be separated.

Figure 6 illustrates an alternative proposal in a cross-sectional view similar to Figures 2-4 but taken at a point along one side of the frame where the latch 50 and the tool 64 are not located. An L-shaped corner bracket 16a is located in the space defined by the outwardly extending flanges 40a, 48a and the inwardly extending flanges 41a, 42a. To this bracket 16a is attached a seal 70. This enables the poster frame to be sealed against a vertical supporting surface and so prevents ingress of water to the rear of the poster or display board 14. In addition to this, the inner frame bracket 1 6b has holes therein to receive respective dowel pins 72 (only one being shown).In the case where a rigid poster board is the medium used for displaying information or a rigid acrylic or like sheet is used to protect a poster, these dowels 72 locate in suitable holes in the poster board or acrylic sheet as the case may be and so maintain the poster board (or sheet) firmly and properly in position within the inner frame 12. There is a seal pad 73 accommodated in the extrusion as illustrated to seal with the rear of the board or other form of display member 14 and to allow display members of different thicknesses to be mounted in a weatherproof manner.

In a further alternative embodiment of the invention, not illustrated, the outer L-shaped brackets 16 shown in Figure 1 can be replaced by a composite bracket having a first straight blade which extends into an end of one side frame member and asecond straight blade which extends into an end of an adjacent side member, these two blades may be connected by an L-shaped plastics connecting piece, positioned to extend between the flanges 40 and 42 (lower).

In an adv antageous embodiment of the invention, also not illustrated, a poster frame is rectangular and each of its top and bottom sides has two latches (e.g. latches as described and shown in Figs. 5 or Figs. 10-13) located within the extruded section along that side. It is then necessary merely to withdraw two latches in order to separate the inner and outer frame parts. Alternatively one or more latches may be located in each of the top and bottom sides of the poster frame.

In this specification the words "inner" and "outer" when used with reference to frame parts and the position of walls of extruded sections are used in the sense that "inner" means closer to and "outer" means further from, the centre of a poster or the like which is mounted in the frame.

Referring now to Figure 7, a wall or other support surface is indicated at 80 and a rectangular back support 82 (also referred to as an inner frame) is secured to it for example by screws or bolts (not shown). One vertical limb of the rectangular support 82 is seen in crosssection in Figure 7 and this is an elongate member having a channel in part defined by a flange 84, the channel being intended to receive a back panel or poster board 86. The elongate member 82 has an outwardly extending flange 88 under which a latch member shortly to be described can engage. As seen in Figure 9, a poster 90 may be stuck to the front surface of the back panel 86. Although not shown in Figure 7, the other vertical limb is similar in arrangement but of opposite hand to the limb shown at 82, and the horizontal top and bottom limbs making up the rectangular back support are of similar construction.

Figure 8 illustrates in cross-sectional view one limb of a poster outer frame according to this embodiment of the invention. This is preferably made as an integral extrusion, for example of aluminium, aluminium alloy or a synthetic plastics extrudable material. The poster outer frame is shown in Figure 9 cooperating with the inner frame 82. The limb illustrated in Figure 8 of the poster frame has a first or outer portion 92 and a second or inner portion 94. The portion 92 defines a first longitudinal chamber 96 intended to house a slide actuating member 98 seen in Figure 9, and a second longitudinal chamber 100 intended to house a latch member 102.

One or more latch members may be employed in each limb. As seen best in Figure 9, the latch members are movable leftwards through appropriately located apertures in the wall 104 of the chamber 100, and when extended leftwards, one or more lugs 112 on the the latch 102 member engage under the flange 88 of the back frame 82.

The inner portion 94 of the poster frame extends inwardly over the marginal region of the poster and the back panel 86, and is formed to define a recess which receives a retaining compression seal 106. This seal extends longitudinally the whole length of the relevant limb of the poster frame, and its function is to engage a marginal edge region of the poster to securely hold the poster and back panel in position and to provide a weather seal preventing ingress of water or dirt, so preventing water or dirt reaching the edge of the poster or the back panel and causing detioration. The seal 106 is preferably of rubber or material such as a resilient foam of substantially eouivalent properties. As seen in Figure 8, the pad 106 extends a substantial distance outwardly of (i.e. towards the display panel 86) of the channel in which it is located.

This feature, coupled with the relative dimensions of the outer frame member 92 and the inner frame member 82 in a direction perpendicular to the surface of panel 86, enables the poster frame according to the invention to readily accommodate varying thicknesses of display media, without any change in the frame being necessary. Also, the sealing against ingress of liouid is maintained whether the display medium is thick or thin.

In a preferred embodiment of the invention, the two vertical limbs of a poster frame each have two latch members therein, although for small poster frames, one latch member on each side, or one on the top limb and one on the bottom limb, and none on the sides, may well be adequate.

The construction and operation of the latch 102 is seen best from Figures 10 and 11.

The latch 102 consists of a flat plate having two angled slots 110 therein and also having projecting lugs 112 extending from one of the longer sides of the latch. The width of the latch is chosen so that it can be received within the channel 100, Figure 8. The function of the lugs 112 is to engage under the flange 88 as previously described, when the latch is moved to its locking position by movement of the latch actuating member.

The latch actuating member 98 is illustrated in Figures 12 and 13. The latch actuating member 98 is in the form of a flat rectangular plate dimensioned to be received for sliding movement longitudinally of the extrusion in the chamber 96. The latch actuating member has a cut out 116 in one longitudinal side thereof, and has projecting pins 118 extending downwardly therefrom. These pins are of a size chosen to extend into the slots 110 cut through the latch 102. It will be seen that longitudinal movement of the latch actuating member 98 moves the pins 118 along the slots 110 and so causes a lateral movement of the latch 102 so that its lugs 112 engage under the flange 88. Movement in the opposite longitudinal direction of the latch actuating member causes the lugs 112 to be withdrawn from underneath the flange 88 to permit the poster frame to be entirely removed from the back frame 82.The wall 101, Figure 8, of the poster frame member is provided with through slots of limited length to allow a user to insert a suitable tool into the recess 116 (Fig. 12) in the edge of the latch actuating member 98 to pull or push it longitudinally of the extrusion when it is desired to actuate the latch. A length of steel wire having a right angle bend at its end is suitable for this purpose, and such a length of wire may be mounted on a handle. This gives an effective but inexpensive tool. This arrangement further has the advantage that persons not possessing such a tool are unable to disassemble the poster frame from the back frame and it is moreover an advantage that the access slots in the wall 101 are not visible and not easily accessible once the poster frame is mounted on the back frame.

Referring now to Figures 14-19, these illustrate parts for making up a rectangular poster frame according to another embodiment of the present invention. The poster frame according to this embodiment of the invention has a back support made up of four extruded strips of metal, three of these, the left hand side, the right hand side and the bottom being like extrusions and the fourth side, the top, being a different extrusion. These back support extrusions are fixed to a wall or other vertical surface in any convenient way. The top support is shown in Figure 15 and the left hand side, right hand side and bottom supports are shown in Figure 18. In Figure 15 a top support extrusion is shown at 120 fixed on a wall 122.The extrusion has a channel 124 for receiving an upper edge of a sheet or board of material to be displayed, and there is a downwardly and rearwardly sloping surface 126 at the top edge of the support. This is to allow a top poster frame member 130, seen in Figures 14 and 16, to hang thereon as can be seen from Figure 16. Such a poster frame is constructed from four limbs or extrusions the top one being 130 and the bottom and two side extrusions 140 being constructed as shown in Figures 17 and 19.

The back support 120, Figures 14-16, is shown fixed by a screw 131 to a wall 122 and a poster board 133 is located with its top edge 134 in the recess 124 (Figure 15) of the back support 120. The front surface 135 of the poster board 133 carries information or illustrations to be displayed. The bottom and side back supports and poster frame extrusions are not shown in Figures 14-16 and will be described later. The top extrusion includes an angled flange 136 whose angle to the vertical is substantially the same as that of the surface 126, Figure 15. The function of the flange is to permit the top frame member 130 to be hung upon the back support 120. In this way the weight of the poster frame constituted by the top member 130 and the side and bottom members 140 can be borne by the top back support 120 while the latching arrangements are operated. Without this facility, it would be necessary to have at least two workmen for the erection of any poster frame of substantial size or the changing of any displayed poster. The top poster frame member 130 has a rearwardly extending flange 137 positioned to provide a clean edge appearance and to conceal the manner of support. It also has a channel 138. The channel 138 is narrowed at its mouth and it accommodates a resilient pad 139 which may for example be of rubber. This pad 139 extends towards the poster 135 and bears upon its upper edge, holding the poster firmly back against the back support 120. The side and bottom members 140 have provision for similar pads 139 which serve the same purpose, as seen from Figure 19.As in the case of the embodiment of Figures 7 to 9, the resilient pag 139 extends a substantial distance outwardly of the channel 138, and this, together with the dimensions of the backing parts 120, 150, and frame parts 130, 140 in the direction perpendicular to the plane of the display panel 133, enables a single poster frame to accommodate display media of different thicknesses without any lessening of the efficiency of the sealing against ingress of liquid.

It is preferred that the dimension a (the uncompressed projection distance of the pad 106 or 139 or 174) should be at least 15% and more preferably at least 20% of the dimension b (the height of the outer frame member 92 or 140 or the inner frame member 160). Moreover, preferably the distance c should be in the range 30 to 50% and more preferably 35 to 42% of the distance b. The distance d (projection of sealing pad when in engagement with the surface of the poster board 133) is desirably at least 10% and more preferably about 15 to 20% of the distance b, though their ratio will naturally be affected by the material of the resilient pad.

The top, side and bottom extrusions may be held together to constitute a rectangular poster frame using L-shaped connectors in the manner described with reference to Figure 1 herein, Referring now to Figure 18, this illustrates the cross section of three extruded strips which together make up the bottom and two sides of a rectangular back support. Each of these extrusions 150 has a flange 152 at its outer edge, a flange 154 which defines a channel 156 for receiving an edge of a poster board, and has any convenient means such as a screw (not shown) by which it may be secured to the wall 157. The function of the flange 152 is to provide a surface 158 behind which a latch can engage to maintain the respective side and bottom poster frame extrusions against movement away from the wall.

The poster frame extrusion members which constitute the left hand and right sides and the bottom of the rectangular poster frame are seen at 140 in Figure 17, and these have a channel 138 which serves the purpose already discussed. The extrusion 140 also has flanges defining chambers 142 and 144 which serve to receive the components of a latching mechanism. In this regard, the arrangement is analagous to that already described in connection with Figure 9 and a detailed description is therefore not believed to be necessary. In brief, the chamber 144 contains a movable latch member 145 (Figure 19) which has laterally projecting pegs 146 which can be caused to reciprocate inwardly and outwardly, that is towards and away from the respective back support 150. In making this reciprocating movement, the pegs 146 move through a hole or slot 147 provided in a flange 148 of the extrusion 140.The chamber or space 142 receives a latch actuating member diagramatically indicated at 149 in Figure 19, this being movable longitudinally of the poster frame extrusion 140 in a manner similar to that described in connection with Figures 8 and 9. It will be observed from Figure 19 that the peg or pegs 146 engage under the flange 152 of the back support 150 so retaining the poster frame member securely on the back support.

A further embodiment of the invention is illustrated in Figures 20-22 and in this embodiment an outer frame member is combined with a back support in one extrusion, this extrusion being illustrated in Figure 21. It cooperates with an inner frame member which is an extrusion of the shape illustrated in Figure 20.

The poster outer frame extrusion 160 has a planar rear surface 162 which is secured in any convenient manner to a wall 164 (Figure 22). The inner portion of the extrusions contains a re-entrant channel within which is fixed a strip 163 or pad of rubber or other resilient material. The function of this is to provide weatherproofing and water sealing and constitute a cushioned backing for a poster board 166. With this arrangement, all four limbs or extrusions 160 making up the rectangular outer frame are similar to each other, and all four extrusions 170 making up the inner frame are likewise similar to each other. The inner and outer frame members inter-engage as seen in Figure 22, the inner frame member having a tapered flange 172 which is received in a recess 168 of the extrusion 160.Due to the dimensioning of the parts and the shape of the flange 172, manual pressure is normally sufficient to satisfactorily inter-engage the inner and outer frame members. This arrangement is preferred for poster frames of relatively small overall size, that is up to about 500 by 500 mm. The inner frame member 170 has a strip receiving region defined by four small flanges 171, and a resilient pad or strip 174 (Figure 22) is received therein. This pad engages the poster board 166 substantially in registry with, and on the opposite side of the board 166, to the pad or strip 163.If desired, holes or slots may be provided in the wall 165 of the extrusion 160, so that a blade or pegs of a latch member similar to that shown in Figures 10-13 can extend therethrough, the pegs thereof being then received in the recess 177 of the inner frame member 170 in order to hold the inner frame member securely within the outer frame member 160.

For simplicity of illustration in Figures 20-22, the latching mechanism has not been illustrated. It will be realised that the resulting poster frame formed by the outer frame portion 160 and the inner frame portion 170 fit together in such a way that they present in front view outwardly and inwardly sloping surfaces framing the poster.

Among the advantages of the invention as hitherto particularly disclosed and illustrated can be mentioned the following: the poster frame is easily assembled and disassembled, and when anodised aluminium sections are used, has an attractive modern appearance; the latching mechanism is simple and durable and reouires little or no maintenance; the latching mechanism is substantially invisible and its operation by unauthorised persons is virtually impossible; the inner frame can easily be removed when reouired, allowing frequent changes of advertising message, and yet the frame is sturdy and resistant to tampering and vandalism; it can accept poster material of various kinds and various thicknessesi and it is resistant to ingress of rain or snow.

A poster frame is disclosed and claimed in U.K. Patent Application No. 84 15541 (Serial No. 2 160 690). In this application, and in any Patent granted thereon, no claim is made to what is disclosed in the earlier application.

Claims (12)

1. A poster frame having a frame member which surrounds the poster and as an inner portion and an outer portion, the inner portion having a peripheral sealing pad located to engage a peripheral region of the poster and an outer portion which is hollow and contains concealed therein a latch mechanism constructed for securing either the inner portion to the outer portion (in a case where the inner and outer portions are separable) or the frame member to a backing support plate which carries the poster (in a case where the inner and outer portions of the frame member are made in one piece).

2. A poster frame characterised in that it is rectangular in shape and in that at least two opposed limbs of the frame are hollow and each contains one or more concealed latch mechanisms constructed to retain the frame in position in relation to a support (herein also called a back frame) on which, in use, the poster is displayed.

3. A poster frame designed for multipurpose use, that is to say for receiving and displaying any one of several kinds of display media, for example a paper or other sheet disposed beneath a rigid transparent acrylic or glass sheet or an encapsulated display or an outdoor laminated sheet having an adhesive on its rear surface, the poster frame being rectangular and having inner and outer frame portions, separable from one another, made from elongate extrusions and constructed to fit together in such a way that they present in front view outwardly and inwardly sloping surfaces framing the poster.

4. A poster frame according to claim 1, 2 or 3 including four limbs of extruded profile, these being supported by a rectangular support frame which is fixed in any convenient way to a wall or hoarding.

5. A poster frame according to claim 4 in which each limb is an extrusion which includes a first elongate space to receive a poster edge clamping and sealing member and a second elongate space to receive a latching mechanism.

6. A poster frame having two frame parts, one of which fits within the other, the two parts being held together by a latch mechanism which is wholly located within the outer frame part, the latter being in the form of a hollow metal or plastics extrusion.

7. A poster frame according to claim 6 in which the outer frame extrusion has a substantially closed channel region within which is located part of one or more latch members.

8. A poster frame according to any preceding claim, in which a cushioning or sealing strip or pad or gasket is located in or on the outer frame member, in such a position as to support and seal against an underside marginal portion of the poster or display medium.

9. A poster frame according to any preceding claim including a sealing strip, pad or gasket on the inner frame member located to bear against a marginal region of the front or facing surface of the poster.

10. A poster frame according to any preceding claim in which the mechanism of a latch which holds the inner frame member within the outer frame member, or which holds the frame member in position on a support, is formed by one part which in use reciprocates laterally of an elongate extruded limb of the frame, and this movement is caused by longitudinal movement of a second part of the latch mechanism, the second part being located within the extruded limb.

11. A poster frame substantially as herein described with reference to and as illustrated in the accompanying drawings.

12. Any novel combination or sub-combination disclosed and/or illustrated herein.