FR2533728A1 - ELASTICALLY RECALLED POSTER EXPOSURE CHASSIS - Google Patents

Abstract

A PLASTIC FRAME SUPPORT FOR THE EXHIBITION OF POSTERS, IMAGES AND ADVERTISING OR DECORATIVE MATERIALS, WHICH CAN BE REPLACED, INCLUDES EXTRUDED CHASSIS SECTIONS INCLUDING FRONT 14 AND BACK 16 PARTS CONNECTED BY AN ARTICULATION 17. A ELONGATED ELEMENT 60 OF RELATIVELY ELASTIC PLASTIC MATERIAL IS ONE PART WITH THE CHASSIS SECTION AND PROVIDES A TIGHTENING FORCE TO HOLD A POSTER BETWEEN THE ARTICULATED PARTS.

Description

The present invention relates to a frame for a poster / support.

  Advanced display for various types of posters, images and similar replaceable advertising materials The chassis / stand can be used in many places, such as on buses, taxis, and similar mobile facilities, as well as on fixed mounts, such as the walls of a service station, on posts and the like The poster display device is neat, neat and aesthetic, and can be used either indoors or outdoors The device allows to fix a poster or other type of message inside its edges and

  can be moved quickly and easily.

  The present invention is an improvement on the invention described and claimed in the patent of

  United States of America 4,145,828 In this patent, a sup-

  is claimed, which includes a number of

  lity of chassis sections Each section is made up of

  essentially killed by two extruded parts which pivo-

  try together, these parts being made of a material

  riau which can be economically extruded, such as

  aluminum The extruded chassis sections are sol-

  Licensed by a metal spring with non-cambered blades for the purpose of removably fixing posters or other display objects in the frame The invention as described and claimed in the patent of United States of America 4 145 828 is itself a

2533? 28

  improvement of the device described in the patent of

  United States of America No. 3,310,901 which employs

  metal spells with cantilever blades

  with S-shaped hooks at one end for floor-

  license the two parts of the chassis. The present invention provides a frame for a poster / exhibition support whose manufacturing cost

  and the weight are lower than those of chassis for affi-

  che described in the patents cited above The diposi-

  tif exposure of the present invention is also

  made of plastic material, is essentially mono-

  block, and provides economical chassis with relatively small widths (for example, 12 cm or less) In the present device, a plurality of chassis sections constituting a polygonal chassis structure are obtained by extruding a material plastic In a preferred embodiment, each section comprises an extruded part having a part

  front and rear part in relative plastic material

  rigidly designed to be connected to each other in an articulated manner, and an elongated section of

  stress in relatively elastic plastic material

  which constitutes part of the chassis section The front part has an outwardly directed surface on which a decorative laminate imitating metal or wood can be fixed The rear part has a vertical rim on which a pivot is mounted The part front has an inwardly directed rim, at a

  first end, and a second ledge directed towards the interior

  t its at a second end which comprises a cup-shaped element intended to come into contact with the pivot on the rear part and form a hinge The elongated biasing section is coupled between the front edge directed downwards and the vertical edge, and

  constitutes a portion of the extruded part in one piece.

  The length of the elongated biasing element is such that, when the pivot and the cup-shaped element are joined together to form a hinge, it is subjected to a compression which causes it to bend towards the front part. thus provides clamping forces between the front and rear parts.

  In a preferred embodiment of the present invention

  tion, the elastic biasing section includes

  living hinges arranged at intermediate points

  length diaries, which facilitate change or

removal of posters.

  In another preferred embodiment of the invention, the extruded element serves to fix the display part in place from the rear side thereof.

  against a separate frame member.

  An object of the present invention is a chas-

  located for single poster / exhibition stand and

  -geux, intended to be used in various applications Another object of the invention is a frame for poster / support of exhibition durable, weather resistant, which can be used inside and outside.

  exterior and which will present a reliable and pleasant appearance

  health throughout its lifetime.

  Another object of the present invention is a frame for a poster / exhibition stand which can be

  economically made from relative materials-

inexpensive.

  Another object of the present invention is a poster exhibition framework which retains the effect of effective attachment of the devices described in the patents of United States of America Nos. 3,310,901 and 4,145,828, while being rendered more economical when

these are small dimensions.

  The present invention will be clearly understood from the

  reading of the following description made in relation to

  the accompanying drawings, in which: Figure 1 is a front view of an improved display stand according to the present invention Figure 2 is a sectional view taken along line 2-2 of Figure 1; Figure 2a is a sectional view of the mode of

  realization of figure 2, representing the element for-

  mant hinge after disassembly, Figure 3 is a sectional view of another embodiment of the present invention; Figure 4 is a sectional view of yet another embodiment of the present invention; Figures 5 to 10 show the device of the invention during its operation; Figure 11 is a sectional view of yet another embodiment of the present invention; Figure 12 is a sectional view of the mode of

  realization of figure 11 representing the element form-

  mant hinge after disassembly; Figures 13 to 18 show the device of Figure 11 during operation; Figure 19 is a sectional view of a mode of

  rear loading embodiment of the present invention

  tion; Figure 20 is a sectional view of yet another embodiment of the present invention; and Figure 20a is a sectional view of the embodiment of Figure 20 showing the elements

  forming a hinge after disassembly.

  As shown in Figure 1, an improved poster / exhibition frame, shown

  in broad outline by the reference 10, is constituted

  killed from a plurality of chassis sections 12 For a

  square or rectangular poster, it must be

  LEMENT Four Sections 12 Sections 12 are assembled at their ends at an angle of 45 and secured together so as to form a box-type chassis. A backrest element made of hard cardboard, fiberboard, or metal is provided, and the chassis is fixed its edges or around them, thus constituting the complete exposure device As shown in

  Figure 2, each section 12 is constituted essential-

  ment of two parts 14 and 16 extruded in common which pivot together, for example at 17 The parts 14 and 16 of each section 12 are cut to the desired length and assembled at an angle of 450 at their opposite ends so as to produce a assembly

  at the end, coplanar, forming the outline of the chassis 10.

  As will be understood, the frame 10 can be square or rectangular, although it can also have any desired polygonal shape using the appropriate number of sections 12 joined to each other at the appropriate angles. possible that each of the parts extruded before, or part of

  cover 14, consisting of a number of elements

  extruded pieces of shorter length.

  The chassis 10 is preferably associated with a rigid backrest 18 which may be made of plastic, masonite, aluminum or other suitable material. The sections 12 are placed around the edges of the backrest 18 which is held in place around its edges by the sections. 12 for example, rivets, so as to form the complete exhibition support A poster 19 or other

  exhibit element is placed on the backrest 18 The par-

  extruded rear tie 16 can be fixed by any conventional means to a rigid or support element

  such as a pole, a wall, a vehicle support frame

  cule, or the like It will also be understood that the use of

  tion of a file 18 is not necessary; the chassis 10 could be mounted on a flat surface constituting its own backrest, or else the display 19 could be made of rigid or stiff material without the need to

call on a file.

  The parts 14 and 16 are preferably made of plastic material which can be extruded efficiently and economically, and which has an attractive and

  durable for an indefinite period Appropriate materials

  required are, for example, polypropylene, vinyl and

rigid polyvinyl chloride.

  Contiguous sections 12 of the frame are held and fixed together, for example by gluing from one section to the other, by gluing to the backrest 18, or by means of L-shaped angle crankshafts as described in the patent of United States of America NO.3 310 901 which will be assumed to be known here The part

  outer 14, or front part, of each chasing section

  sis has a decorative outer surface 15 and is

  mounted on the rear part 16 by means of an articulation

  tion broadly represented by the reference

  17 The outer surface 15 is preferably relative-

  flat, but may have a decorative or ribbed surface. If it is relatively flat, it is then easier to apply a laminate simulating it.

  metal (for example, the material called Mylar) or wood.

  The joint includes a hinge or pivot

  cylindrical 30 which extends outwardly through the

  median of an element 32 forming a bridge between a vertical rim 34 disposed on the rear part 16 and a corresponding element 36 in the form of a cup which is formed on the rear panel 38 of the part 14 The edges of the cut 36 can be extend at an angle greater than 1800 around the pivot 30, in which case the two sections 14 and 16 are suddenly engaged after extrusion so as to form the joint 17 The edges of the cut

  36 can, as a variant, extend at an angle less than

  laughing at 180 around pivot 30 to form the articula-

  tion 17 As shown by the dashed lines in Figure 2, the hinge 17 allows the front part 14 to pivot relative to the rear part 16 When the part 14 is in the position shown in solid lines in Figure 2, it maintains up poster 19

  in the frame against the backrest 18.

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  When you want to remove or replace the poster 19, you rotate, or rotate, the front part 14 to the position 14 'shown in phantom, which allows you to remove the poster The rotation of the part 14 is limited by the beginning end 39 of the cup-shaped element 36; when the part 14 is tilted to its fully open position 14 ′, the end

  39 presses against the element 32 forming a bridge (as shown

  felt by the position in phantom 39 'in FIG. 2).

  i O The extruded part 14 has a formed side panel or edge 42 in which a longitudinal recess is made 44 The recess 44 is provided so as to be able to grasp the part-14 in a manipulation having the effect of opening or closing it by compared to

  part 16 The end 46 of the 42-east side panel -

  intended to rest on poster 19 in order to fix it in

place in the exhibition stand.

  The vertical rim 34 has a lip 48 projecting orthogonal inwards, that is to say towards the center of the frame 10 The rim 34 and the lip 48

  form a recess 50 intended to receive the outer edge

  backrest 18 laughing, hiding any rough edge that

  rait include this file The lip 48 ends with an ear 52 which constitutes a stop surface, -or guiding surface, for positioning the poster 19 and preventing it from going too far in the chassis The bridge 32 is integral with the flange 34 and generally projecting

  outward from the center of chassis 10, for-

  mant a downward facing dog paw

  mine by the pivot 30 The bridge element 32 comprises a knee part 54 disposed generally opposite the

pivot 30.

  It will be understood that the structure just described is formed by extrusion of a plastic material

  relatively rigid - such as vinyl material, including

  taken polyvinyl chloride The present invention also comprises an elongated biasing part, or forming a spring, represented in broad outline by the reference 60, which is obtained by extrusion of a relatively elastic material such as polyurethane of etane, or softer vinyl The elongated biasing part 60 is in one piece with the end 46

  side panel 42 and the knee part 54 The ring-

  tion between the part 60 and the end 46 forms a transition zone A between the relatively rigid material of the

  panel 42 and the relatively elastic, flexible material

  ble, of part 60 The junction between the part of soil-

  licitation 60 and the knee 54 of the bridge 32 constitutes a transition zone B between the relatively rigid bridge and

  the relatively elastic biasing part, fle-

  xible Preferably, the junctions constituting the transition zones A and B are formed during the process

  extrusion; in other words, the solicitation party

  tion 60 is part of the one-piece extrusion element.

  constituting the front part 14 and the rear part 16.

  If necessary, the transition zone A can be formed, as shown in FIG. 2, so that the corner 47 (which is in contact with the poster 19 when the frame is closed) is made of the softer material forming the part stress 60 This gives greater friction between the corner 47 and the poster 19 for the

keeping this poster in place.

  FIG. 2 a represents the monobloc piece extruded before the assembly of the hinge 17 As can be seen, the chassis section is extruded with the

  front and rear parts essentially in their posi-

  opening but without the pivot 30 and the cup-shaped element 36 being mounted one inside the other The biasing part 60 is extruded slightly in the shape of an arc, although it can also be in an essentially planar form The length of the biasing part 60 and of the bridge 32, measured between a central point A ′, along the interface A and a point C situated at the center of the pivot 30, is longer than the linear distance between points A 'and

  C Thus, when the hinge 17 is assembled by engagement

  gement of the element 36 on the pivot 30, the solicitation part 60 is caused to arch inwards in the direction of the front part 14 to a significant degree (or even more if extruded in a slightly arched), as shown in Figure 2 This

  shortens the radius of curvature of part 60, the

  nant to exert an off-center force inward and outward so as to maintain stably

  the removable front part of the chassis 14 is in the posi-

  closed either in the open position In each position, the part 60 urges the extruded part

  before 14 in a direction where there is maintenance of the elec-

  ment 36 against the pivot 30 of the extruded rear part 16. In conjunction with FIGS. 5 to 10, the action

  elastic of the biasing part 60 is shown

  felt for a typical range of operations In Figure 5, the chassis section is shown without a poster being held in place Part 60 is arched towards

  the interior in the direction of the front part 14.

  As explained previously, this inward bending causes the part 60 to exert forces on the

  front part 14, urging it towards the closed position

  procedure In FIG. 6, the front part 14 is shown.

  during its rotation towards its open position shown

  felt in FIG. 7 During the opening of the chassis, the biasing part 60 becomes even more arched,

  with an even smaller radius of curvature, as shown

  felt in Figure 6 This increase in the camber is due to the fact that the linear distance between the ends of the part 60, for example at A and B, has decreased (from a

  compression of part 60) while point A 'for

  follows its rotational path around point C In the position shown in Figure 6, the biasing portion 60 continues to exert a downwardly directed force which tends to close the frame. At a certain point in or near the opening position of the chassis, the part 60 takes

  suddenly a bent outward position, represented

  felt in Figure 7 In this position, the part 60 exerts forces which tend to keep the part 1 O before 14 in its relatively open position, hence the

  possibility of positioning poster 19 or analog

inside the chassis.

  The closing sequence is shown in FIGS. 8 to 10 While the front part 14 is rotated by hand towards the closed position despite the stressing forces, the stressing part 60 is more arched outwards. rotation towards the closed position, represented in figure 9, causes an even greater cambering of part 60 In figure 9, we can see that part 60

  somewhat takes the form of an S in a long cut

  dinale At a certain point of the final closed position, or close to this position, represented in FIG. 10, the part 60 suddenly returns to its inward bending position. When this occurs, the stressing forces produced by the part 60 tend to keep the frame in its closed position, which has the effect of fixing the poster in place 19 In particular with

  Figure 9, we will see that the part 60 can come into con-

  tact with the ear 52, and possibly with the poster

  19 Such contact, although not essential or essential,

  ble, can provide impetus or force to part 60

  motive force so that it suddenly returns to the posi-

  Inward cambering shown in FIG. 10. Another embodiment of the invention is shown in FIG. 3 In this embodiment, the biasing part 60, as well as the front part 14 and the rear part 16, are extruded from relatively rigid plastic material Again, the components

  of the chassis section are extruded in their posi-

  "open" tion shown in solid lines -The front part 14 and the rear part 16 are joined by a living flexible hinge 70 consisting of a thinner part of plastic material Similarly, the biasing part 60 is coupled to the end 46 of the front part 42 by a second living flexible hinge 72 and at the vertical edge 34, for example at B, by another living flexible hinge 74 Preferably, the three hinges are made of the same material as the

  solicitation part 60 Let part 60 be done

  placed in rigid or soft material, it works

  in both cases as in the first embodiment so as to exert an off-center force inward and outward to stably retain the movable parts of the chassis either in their

  closed position either in their open position.

  It will also be noted that in this embodiment represented in FIG. 3, the hinge 70 could be, as a variant, replaced by the pivot and the element in

  a coupe-shaped part which was described in liai-

  sound with the first embodiment However, the hinges 72 and 74 will remain present at the connection between the biasing part and the front part 42 and

the vertical edge 34.

  Another embodiment is shown in Figure 4 This embodiment employs the pivoting hinge mechanism 17 of the first embodiment and is extruded in two pieces, although the hinge 70 of the second embodiment can replace the mechanism 17, at which case a one-piece extrusion would be used The biasing part 60 is coupled, for example at A, to the end 46 of the side panel 42 and is extruded in semi-rigid plastic material for

  constitute a single part with the front extruded part.

  The biasing part 60, or elastic part, after extrusion, is slightly in the shape of an arc and ends in a free rounded part 80 The vertical flange 34 * has a longitudinal groove 82 in the shape of an arc in which will engage pivoting the end part 80 during their assembly The arc-shaped part 82 extends approximately over an angle of 900 and is positioned so as to allow the end 80 of the stressing section 60 to move along a arc of 900 during the opening and closing of the front part 14, while preventing this end from coming out of it. Thus, the biasing part 60 exerts an off-center force inwards and outwards in the goal of stably maintaining the

  movable part of the chassis section either in its posi-

  closed position in its open position.

  Another embodiment, shown in Figures 11 to 18, employs living hinges which are arranged at intermediate locations along the length of the elongated biasing section.

  so as to facilitate the change or removal of affi-

  by ensuring a sharper snap-action effect As shown in FIG. 11, each of the chassis sections 112 essentially consists of two parts 114 and 116 which come from the same part

  which rotate on each other, for example-

  ple en 117 Parts 114 and 116 of each section 112

  are cut to the desired length and assembled together

  front of an angle of 450 at their opposite ends of

  so as to constitute a set in about coplanar about-

  mant the frame As will be understood, the frame can be square or rectangular, but it can also have any polygonal shape by then using the appropriate number of sections 112 joined together at suitable angles In addition, it is possible that each

  extruded front part, or covering part, 114 either

  killed from a number of extruded length pieces

shorter.

  The chassis is preferably associated with a rigid folder 118 which may be made of plastic,

  masonite, aluminum or other suitable material.

  tions 112 are placed around the edges of the backrest 118 which is held in place around its edges by the sections 112 by means of rivets, for example, so as to form the complete exhibition support A poster 119 or other element of display is placed on the back 118 The extruded rear part 116 can be fixed using any conventional means on a rigid or support element, such as a post, a wall, a frame for a vehicle, or the like It will be understood that the use of a file 118 is not necessary; we

  could mount the chassis on a flat surface

  killing his own file, or we could make poster 119 in rigid or stiff material without it

  necessary to appeal to a file.

  The parts 114 and 116 are preferably made of plastic material which can be extruded in an efficient and economical manner, and which will have an attractive and durable structure for an indefinite time. Suitable materials include polypropylene,

  rigid vinyl and polyvinyl chloride.

  The contiguous sections 112 of the chassis are

  held and assembled together by gluing a sec-

  tion on the other, collage on the back 118, or using L-shaped angle crankshafts as described in US Patent No. 3,310,901, which we assume here known The part outer or front part 114 of each chassis section has a decorative external surface 115 and is mounted on the rear part 116 by a hinge, represented in broad outline by the reference 117 The surface

-2533728

  exterior 115 is preferably relatively flat but may have a decorative or ribbed surface. If it is relatively flat, it is then easier to apply a laminate simulating metal (for example the so-called Mylar material) or wood. The articulation consists of a cylindrical hinge or pivot 130 extending outwards via an element 132 forming a bridge between a vertical flange 134 arranged on the rear part 116 and a corresponding element 136 in the form of cut located on the rear panel 138 of the part 114 The edges of the cut 136 can extend at an angle greater than 1800 around the pivot 130, in which case the two sections 114 and 116 are engaged abruptly after extrusion so as to form the joint 117 The edges of the section 136 may, as a variant, extend at an angle less than 1800 around the pivot 130 so as to produce the joint 117 As shown by the dashed line in FIG. 11, the joint 117 allows the front part 114 to pivot relative to the rear part 116 When the part 114 is in the position shown in solid lines in FIG. 11, it keeps the poster 119 in position on the chassis

  against the back 118 When you want to remove or replace

  place the poster 119, the part 114 is rotated or pivoted to the position in phantom 114 ', which makes it possible to remove the poster The rotation of the part 14 is limited by the end 139 of the item 136;

  when the part 114 is brought to its open position

  complete structure 114 ′, the end 139 rests against the element

  ment 132 forming a bridge (as represented in FIG. 12 by the position in phantom 139 ') -

  On the extruded part 114 is formed a

  side panel or edge 142, having a long recess

  gitudinal 144 The recess 144 is provided so that the part 114 can be grasped when it is opened or closed relative to the part 116 The end 146 of the side panel 142 is intended to rest on the poster 119 and to fix it in place in the exhibition stand. The vertical rim 134 has a lip 148 projecting inwardly orthogonal, in the direction

  the center of the frame The rim and its lip 148 form

  a recess 150 intended to receive the file 118 around its outer edge The lip 148 ends with

  an ear 152 which constitutes a stop or sur-

  guide face for positioning the poster

  119 Bridge 132 is integral with ledge 134 and is generally

  projecting outwards from the center

  of the chassis, forming a dog's paw directed towards the

  tieur and ending with the pivot 130 The element 132 -forming the bridge comprises a part with knee 154 which is

  opposite the pivot 130 -

  It will be understood that the structure coming to be described is extruded from a relatively rigid plastic material such as a vinyl material, including polyvinyl chloride. The present invention also comprises an elongated biasing part or elastic part, shown in broad outline by the reference 160, which is extruded from a relatively elastic material such as estane polyurethane or from vinyl material

  softer Part 160 is monobloc and generally connects

  the end 146 of the side panel 142 and the

  knee tie 154 The junction between part 160-and ex-

  end 146 forms a transition zone A between the material

  relatively rigid line of the side panel 142 and the relatively elastic, flexible material of the part

  load 160 The junction between the ground part

  licitation 160 and the knee 154 of the bridge 132 forms a transition zone B between the relatively rigid bridge and the

  relatively elastic, flexible loading part.

  Preferably, the junctions constituting the transition zones A and B are formed during the extrusion process; in other words, the part of

  stress 160 is part of the same extrusion part

  sion constituting the front part 114 and the rear part 116 If necessary, the transition zone A can be formed, as shown in FIG. 11, so that the corner 147 (which is in contact with the poster 119 when the chassis is closed) be made of the material plus

  tender from part 160 This makes it possible to obtain

  more important between corner 147 and poster 119

  so as to keep the latter in place.

  The biasing part 160 comprises a living hinge 170 placed at an intermediate point the length of the part 160 at a distance D from the zone

  transition B, o D is less than 50%, and preferably

  rence less than about 20% -40%, of the length of the part 160 A second living hinge 172 is formed in the part 160 near the contiguous transition zone A, connecting the intermediate part 171 of the biasing part 160 to the end portion 173 and at the side portion 142 The hinge 170 ensures that the biasing portion 160 arches outward when the chassis is open, as will be understood in connection

  with figure 15 The hinge 172 acts with the hinge

  170 to further ensure the bending of the biasing part 160 towards the outside during the opening The hinge 172 is arranged at a certain distance from the transition zone A so as to minimize the tendency to separate which have the elements at transition zone A. Figure 12 shows the single piece

  extrusion before the articulation 117.

  As can be seen, the chassis section is extruded with the front and rear parts essentially in their open position, but without the pivot 130 and the cup-shaped member 136 resting in each other. biasing part 160 is extruded in the form of a slightly arched arc, although it may have a flat shape The length of the part 160 and of the bridge 132, measured from a central point A 'along the interface A to a point C located in the center of the pivot (130), is greater than the linear distance separating points A 'and C Thus, when the joint 117 is assembled by engagement of the cup-shaped element 136 in the pivot 130, the part 160 is caused to arch inwards, in the direction of the front part 114 of the chassis according to a significant degree (or more if it is extruded according to a slight arc), as shown in FIG. 11. has the effect of shortening

  the radius of curvature of part 160, causing it to exert

  to create an off-center force directed inwards and outwards so as to maintain the

  movable front part 114 either in its closed position

* either in its open position In either position, the part 160 urges the front part

  114 in a direction such as to maintain the ele-

  ment 136 against the pivot 30 of the rear extruded part 116. In conjunction with FIGS. 13 to 18, the effect

  elastic of the biasing part 160 is shown

  felt in a typical sequence of operation In FIG. 13, the chassis section is represented without a poster being fixed in place The part 160 is arched inwards in the direction of the front part 114 As explained above, this arching towards the interior has the effect that the part 160 exerts forces on the front part 114, urging it into its closed position In FIG. - 14, the front part 116 is shown during its rotation towards the position

  opening shown in Figure 15 While the frame

  if it opens, the biasing part 160 becomes

  even more compressed or arched, with a radius of

  even smaller, as shown in figure 14.

  This increase in the camber is due to the fact that the linear distance between the ends of the part 160, for example A and B, has decreased (compressing the part 160) while the point A 'continues its trajectory

  of rotation around point C In the position shown

  In FIG. 14, the biasing part 160 con-

  keeps exerting a downward force, tending to

close the chassis.

  At a certain point of the open position of the chassis, or near this position, the part

  suddenly goes into a state of cambering towards the exterior

  laughing, as shown in figure 15 The hinges 170

  and 172 act to facilitate this passage In the posi-

  bending outwards, the stressing part

  tation 160 exerts forces which tend to keep the front portion 114 in its relatively open position, which allows the positioning of the poster 119

  or the like inside the chassis.

  The closing sequence is represented in FIGS. 16 to 18 While the front part 114 is rotated by hand towards the closed position despite the stressing forces, the part 160 compresses as can be seen in FIG. 16. the rotation

  towards the closed position, shown in figure 17, provo-

  than a greater compression of the part 160 In FIG. 17, we will see that the part 160 takes somewhat

  the shape of an M in a section taken longitudinally.

  At a certain point of the final closed position, or close to this position, shown in FIG. 18, the part 160 suddenly returns back to its inward bending position, movement which is facilitated by the hinges 170 and 172 When this happens, the stressing forces produced by the part 160 tend to keep the chassis in its closed position, which has the effect of fixing the poster.

119 in place.

  In the embodiments described above

  In addition, the poster frame of the present invention is a front-loading frame, and the outer surfaces 15 of the front portions 14 can be decorated so as to improve their appearance. In another variant, or embodiment with rear loading shown in Figure 19, the poster frame of the present invention is used to set up

  the part exposed from its rear side against an element

  separate chassis element In connection with FIG. 19, the separate chassis element 180, shown in section, may have a front surface 182 directed towards

  the exterior, shaped or decorative, so as to

  improve the appearance of the chassis Element 180 can be

  made from a classic material used in the manufacture

  tion of picture frames, including the bottom, plastic materials and metals Element 180 is shaped so as to include a first groove 184 defining a holding surface 186 in a plane parallel to the exhibit and contiguous to that -this, and a surface

  fixing 188 generally perpendicular to the previous

  dente A second groove 190 is made in the ele-

  chassis frame 180 at the rear of the groove 184 In general, the groove 184 constitutes a means for fixing the securing element of the display chassis of the present invention to the chassis element 180, and receives and maintains the exhibit, while the

  groove 190 forms a space in which the assuring element

  jettissement 200 is arranged in part It will be understood that the exhibit may be an image, a poster 194 or the like, and in certain applications there may be in addition against the image or the poster 194 a protective glass or a layer of clear plastic material 192, a layer of corrugated material 196 which can also be applied against the poster 194 A rigid backrest 198 is placed at the rear of the corrugated material 196, which serves to distribute the securing forces produced by the chassis element 200 against the exhibit, which has the effect of fixing it firmly against the surface

holding 186.

  The frame element for poster 200, or element

  fixing, can be built according to one

  conch front loading embodiments

  described above, with the following modifications

  In connection with FIG. 19, it will be seen that section 102 (counterpart to section 12 of the embodiment with front loading) includes a flange at

  = l right angle 204 or other means used to fix the element

  200 to the frame member 180, for example, with staples 106 inserted into the surface 188 In addition, the section 202 comprises a sectional element 203 for engagement in pivoting with the pivot 205 formed on

  section 207 Section 207 (counterpart to sec-

  tion 10 of the front load embodiment)

  takes a biasing part 260 which may include hinges placed at intermediate points of its length according to the embodiment shown in Figures 11 to 18 Alternatively, the element 200 can be constructed so that the element 203 in shape cutting is arranged on the section 207 and the pivot 205 is

formed on section 202.

  In operation, the element 200 behaves substantially as described in connection with FIGS. 5 to 10 or 13 to 18 The element 200 can be opened to allow the removal and replacement of the exhibit and the backrest element (or elements) Element 200 can then be closed to fix the exhibit in place, after which section 207 is flush with the rear side 208 of the element

  or slightly behind the latter.

  The set can then be hung on a wall, or fixed to

any other surface.

  Another embodiment of this

  invention is shown in Figure 20 This embodiment

  station 220 has an upper element 232, a

  lower element 238, and uses the articulation mechanism

  pivoting culation 222 of the embodiment shown in Figure 19 and the biasing portion 224 with the hinges of the embodiment shown in Figures 11 to 18 The lower element 238 has a flange 226

  which incorporates a cup-shaped element 228 for engagement

  pivoting bearing with a pivot 230 formed on the upper element 232 It is believed that the use of the pivot-section structure described in FIG. 20 (and in FIG. 19) instead of the structure in FIGS. 2 and 4 to 18 will minimize any possible interference between contiguous elements

  of chassis 220 in the angles of assembly and

  read some savings in material costs - (due to the use of a lesser amount of

material).

  Embodiment 220 uses a portion

  solicitation 224 which preferably comprises char-

  niers 234 at intermediate locations along its length, as in the case of the embodiment shown in

  Figures 11 to 18 The materials used to make

  kill the elements 232 and 238 and the part of soljicita-

  tion 224 are the same as those described above in

  connection with FIGS. 11 to 18 In this regard, the elements

  232 and 238 are preferably poly- chloride

  rigid vinyl and the stressing part 224 in polyu-

  estane rethane, although the present invention is not

  not limited to these particular materials.

  During the manufacture of embodiment 220, it is preferably extruded in the form shown in FIG. 20 A then assembled and mounted so as to give the sectional shape of FIG. 20 (This is similar to the way in which the sections of

  chassis shown in Figures 2 a and 12 are extruded).

  The lower member 238 of the chassis section 220 is preferably flat and thus can be attached to the chassis backrest 240. If the backrest 240 is of plastic material of a type similar to that of the chassis section 220, the sections of chassis constituting the latter can then be fixed by ultrasonic welding In this way, no angle key, no angle crankshaft, or the like is necessary to fix the chassis sections together, and a chassis with a more aesthetic, when viewed from the rear, can be

  obtained By eliminating the corner crankshafts, a cons-

  cheaper truction is also possible.

  The operation of embodiment 220 is substantially identical to that illustrated and described in conjunction with FIGS. 5 to 10 or 13 to 18, and will not be described again. In general, the chassis section 220 can be opened to allow the removal and replacement of the exhibit (and of the file or files in the appropriate case) Element 220 is then closed by latching to fix in place the

exhibit.

  The present invention is not limited to the exemplary embodiments which have just been described, it

  is on the contrary susceptible of variations and modifica-

  that will appear to those skilled in the art.

Claims (26)

  1 Exhibition support including a plu-   ity of chassis sections forming a frame structure   located polygonally so as to receive and clamp an exhibit, characterized in that   the chassis section comprises a first part   tie, a second part and an articulation means for connecting the first part to the second part; a lateral portion projecting from the first   opposite part of the articulation means comprises a door   extreme action intended to press against the exhibit   tion a protruding rim portion on the second part is contiguous by means of articulation; and an elongated one-piece elastic biasing means with the frame section extends between the por   lateral tion and the rim portion to provide for-   these clamping between the first and second parts.   2 Support according to claim 1, character-   rised in that the frame section is made of plastic material tick.   3 Support according to claim 1, character-   laughed at in that the first part and the second part are relatively rigid material.   4 Support according to claim 1, character-   laughed in that the first part and the second part are made of a relatively rigid first plastic material. Support according to claim 1, characterized in that the elongate biasing means is made of relatively elastic material O   6 Support according to claim 1, character-   laughed in that the elongated biasing means is in   relatively elastic plastic material.   7 Support according to claim 4, character-   laughed at in that the elongated biasing means is   made of a second plastic material, this second   material being less rigid than the first material-plas- tick.   8 Support according to claim 1, character-   laughed at in that the first and second parts have a hinge element in one piece with them, which are   designed to engage one into the other by pivoting.   9 Support according to claim 1, character-   laughed at in that the articulation means is coupled to the rim portion.   10 Support according to claim 8, character-   laughed at in that the rim portion is in one piece with a articulation element.   11 Support according to claim 1, character-   laughed at in that the articulation means comprises a first living hinge means.   12 Support according to claim 1, character-   risé in that the rim portion comprises a groove, and the elongate biasing means has a first end   in one piece with the side portion and its second end   free mite and intended to be pivotally mounted on the groove.   13 Support according to claim 1, character-   laughed in that the elongated biasing means has a pre-   first end in one piece with the side portion.   14 Support according to claim 13, character-   laughed at in that the elongated biasing means has its   second end in one piece with the rim portion.   Support according to claim 1, character-   laughed in that the elongated biasing means comprises a living hinge means for coupling to the portion   side of a first end of this solicitation means tion.   16 Support according to claim 1, character-   risé in that the elongate biasing means comprises a living hinge means for coupling to 255372 B   the rim portion of the second end of this biasing means.   17 Support according to claim 15, character-   laughed in that the elongated biasing means comprises a second living hinge means for coupling to the rim portion of the second end of this biasing means.   18 Support according to claim 17, character-   laughed in that the elongated biasing means is rela-   tively stiffer than the first and second hinge means.   19 Support according to claim 1, character-   laughed in that the elongated biasing means comprises a living hinge means for coupling to the portion   side of a first end of this biasing means tation.   Support according to claim 1, character-   laughed in that the elongated biasing means comprises   a living hinge means located at an intermediate point diary.   21 Support according to claim 19, charac-   terized in that the elongated biasing means comprises a second living hinge means located at an intermediate point.   22 Support according to claim 21, character-   laughed in that the elongated biasing means is rela-   tively more rigid than the first and second hinge means.   23 Support according to claim 1, character-   laughed at in that it further comprises a frame element o   the chassis section is attached to this chassis member.   24 Exhibition support, characterized in that it comprises a plurality of chassis elements forming a polygonal chassis structure so as to receive and clamp an exhibition piece a clamping element disposed on the chassis element, this clamping element comprising a first part, a second part and articulation means for connecting the first part to the second part; a lateral portion projecting from the first part opposite the articulation means having an end part intended to clamp the exposure piece against the chassis structure; elongated elastic biasing means in one part with the clamping member extending between the side portion and the second part to provide clamping forces between the first part and the structure chassis.   Support according to claim 24, character-   laughed at in that the chassis elements define a part   retaining tie adjoining the exhibit.   26 Support according to claim 24, characterized in that the frame elements define a fixing surface and the clamping element is fixed to the fixing surface.   27 Support according to claim 24, character-   laughed at in that the chassis elements include a   mier groove means to receive the exhibit.   28 Support according to claim 27, character ized in that the first groove means provides a means   for fixing the clamping element to the chassis element.   29 Support according to claim 24, character-   laughed at in that it comprises a first groove means for   receive the exhibit and a second reason for   nure forming a step with respect to the first, the clamping element being disposed partially inside the second groove way.   Support according to claim 24, character-   risé in that the clamping element comprises an angular flange means for fixing the clamping element to the chassis element.   31 Support according to claim 24, character-   rised in that the frame member comprises a groove means defining a holding surface generally parallel to the display piece and a clamping surface generally perpendicular to the holding surface, and the clamping member comprises a means angular rim   perpendicular for fixing to the clamping surface.