Abstract:
A protective and cushioning package ( 1 ) includes a base wall ( 2 ), two boxes ( 3 ), two flaps ( 4, 5 ), a device for maintaining the boxes ( 3 ) and the flaps ( 4, 5 ) in raised position; and for each box ( 3 ), an outer side wall ( 100 ), and intermediate wall ( 11 ) and an inner side wall ( 13 ) form a triangular profile linked by an articulation ( 14, 52 ) to the base wall ( 2 ) and at least one cushioning tab ( 20, 21 ) is arranged in an opening ( 15 ) provided in the box ( 3 ) by being attached to the box ( 3 ) solely by one end opposite the base wall ( 2 ).

Description:
The invention relates to packaging for protecting and locating circular contour objects, and more specifically objects whose size and shape are comparable to those of a finished or semifinished eyeglass lens. 
     BACKGROUND OF THE INVENTION 
     A semifinished eyeglass lens is a lens of which only the convex face is finished (machined) in the process of mass production. 
     The manufacturer ships this kind of lens to a prescription laboratory which machines the concave face as a function of the requirements of the wearer. 
     When shipping the lens, it is vital to locate the lens to protect the finished face by preventing it coming into contact with anything, especially in the case of an organic material lens, which scratches very easily. 
     In the case of a finished lens, on the other hand, both the concave and convex faces are finished in the process of mass production. 
     The manufacturer ships the lens to the optician, who trims it as a function of the shape of the frame selected by the wearer and morphological parameters specific to the wearer (interpupillary distance, position of the pupils relative to the rims of the frame). 
     Once again, it is important to protect the faces of the lens because they are finished (i.e. machined and usually carrying treatment layers such as antiabrasion, antireflection and antisoiling layers, for example). 
     DESCRIPTION OF THE RELATED ART 
     Packaging of the above type is known in the art. 
     French patent application No. FR-2 703 654 describes a pull-out packaging for eyeglass lenses consisting of an external envelope and a receptacle, the latter including a bottom panel and two box-section rims articulated in the manner of a deformable parallelogram, a cut-out being formed in each box-section rim for the at least partial insertion of the eyeglass lens. 
     The receptacle of the above pull-out packaging receives the eyeglass lens on its bottom panel and in the aforementioned cut-outs, and is then inserted into the external envelope, the combination forming a box suitable for transportation. 
     This packaging is satisfactory in respect of fulfilling the intended function. 
     The invention nevertheless aims to improve it, in particular with regard to locating the lens. 
     SUMMARY OF THE INVENTION 
     To this end, a first object of the invention relates to packaging for protecting and locating a circular contour object such as an eyeglass lens, the packaging including:
         a bottom panel;   two box-sections each including an external lateral panel and an internal lateral panel that includes an opening for at least partial insertion of the object, each box-section being attached by an articulation to the bottom panel along a respective one of two opposite edges, each box-section being adapted to assume a folded down position in which the external lateral panel is in line with the bottom panel and a raised position in which the external lateral panel upstands relative to the bottom panel;   two flaps each attached by an articulation to the bottom panel along a respective one of two opposite edges adjacent the box-sections, each flap being adapted to assume a folded down position in which it is in line with the bottom panel and a raised position in which the flap upstands relative to the bottom panel, against the longitudinal ends of the box-sections; and   means for maintaining the box-sections and the flaps in the raised position;       

     characterized in that, for each box-section, said external lateral panel has a first end connected by an articulation to the bottom panel, a second end connected by an articulation to a first end of an intermediate panel, the latter also including a second end connected by an articulation to a first end of said internal lateral panel, the latter also including a second end connected by an articulation to the bottom panel along the articulation between the first end of the external lateral panel and the bottom panel, and in that at least one locating tongue is disposed in the opening and attached to the internal lateral panel only by an end opposite the bottom panel. 
     Thus the packaging of the invention enables optimum location and transportation of objects of different shapes and thicknesses. It is not necessary, for a given object diameter, to have different stock packaging specific to each type of circular object, thanks to the arrangement of the locating tongues and the box-sections, which provide retaining means adapted to be modulated. 
     The packaging may also be made in one piece, which facilitates and reduces the cost of fabricating it and using it in a production context. 
     The embodiments and additional features described hereinafter are preferably used by virtue of their qualities of simplicity and convenience. 
     In one embodiment, four locating tongues are disposed in each opening in the internal lateral panels, each locating tongue being independent of the others and attached to the bottom panel at one end. 
     The locating tongues may include at least one transverse scoring line over their length. 
     In another embodiment, each box-section is formed in one piece with the bottom panel by a rectangular panel connected by a first scoring line to the edge of the bottom panel, said rectangular panel including a second scoring line delimiting the external lateral panel, a third scoring line delimiting the intermediate panel, a fourth scoring line delimiting the internal lateral panel, and said rectangular panel extending beyond the fourth scoring line by way of a fixing flap fastened to the bottom panel so that the fourth scoring line is juxtaposed to the first scoring line. 
     Also, the intermediate panel may include a longitudinal scoring line, which may be disposed substantially along the longitudinal median line of the intermediate panel. 
     Moreover, the width of the external lateral panel may be substantially equal to the width of the internal lateral panel. 
     In another embodiment, the means for holding the box-sections and the flaps in the raised position include means associated with the flaps and with the box-sections to hold the box-sections in the raised position when the flaps are in the raised position and means for holding the flaps facing each other against the box-sections. 
     The means for holding the box-sections and the flaps in the raised position may include a closure panel articulated to the free edge of one of the flaps, this closure panel including attachment means to the box-sections and to the opposite flap so as to be able to assume a closure position in which it is parallel to the bottom panel and positioned against the box-sections and the free edge of the opposite flap when the latter are in the raised position. 
     The closure panel may include, beyond a scoring line and starting from its end opposite the flap to which it is articulated, a fold-down panel adapted to be superposed on the opposite flap when the closure panel is in the closure position. 
     Said attachment means may comprise attachment tongues projecting from the edges of the closure panel, the box-sections and the opposite flap including notches adapted to cooperate with the attachment tongues. 
     Finally, the flaps may each be attached to the adjacent longitudinal ends of the box-sections by two gussets. 
     Another aspect of the invention is a sheet material packaging blank characterized in that it comprises:
         a bottom panel;   two external lateral panels connected by a scoring line to two opposite edges of the bottom panel;   two flaps each connected by a scoring line to a respective one of the other two edges opposite the bottom panel;   two intermediate panels connected by a scoring line to each of the opposite edges of the bottom panel of the two external lateral panels;   two internal lateral panels each connected by a scoring line to a respective one of said intermediate panels at the edge thereof opposite the external lateral panel, each internal lateral panel being extended, in the direction away from the intermediate panel, by a fixing flap, the internal lateral panels further including a cut-out delimiting at least one tongue remaining attached to the rest of the panel by one of its ends;   a closure panel with dimensions substantially equal to those of the bottom panel and connected by a scoring line to an edge opposite the bottom panel of one of the flaps.       

     The width of the lateral external panel and the width of the lateral internal panel of the packaging blank may be substantially equal. 
     In one embodiment, the external lateral panels and the flaps are connected in pairs at their ends adjacent the bottom panel by a gusset. 
     Similarly, the widths of each of the flaps and of each of the external lateral panels may be substantially equal. 
     A third aspect of the invention provides a method of packaging and locating a circular contour object employing packaging as defined hereinabove. 
     The above method provides for the selection of a combination of packaging and object to be packaged in which the bottom panel is a square whose side length is substantially equal to the diameter of the object. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Other features and advantages of the invention will become apparent in the light of the following description of a preferred embodiment of the invention, provided by way of non-limiting example, the description being given with reference to the appended drawings, in which: 
         FIG. 1  is a perspective view of packaging of the invention when open, a located eyeglass lens being visible inside it; 
         FIG. 2  is a perspective view of the combination from  FIG. 1  when the packaging is closed; 
         FIG. 3  is a top view of the packaging in the  FIG. 1  position except that, to facilitate the explanation, its closure panel is in line with its bottom panel; 
         FIG. 4  is a view in elevation on the section plane IV-IV in  FIG. 3 , showing the cooperation of locating tongues with an eyeglass lens; 
         FIG. 5  is a view similar to  FIG. 4 , on the section plane V-V in  FIG. 3 ; 
         FIG. 6  is a partial perspective view representing an eyeglass lens in place and a box-section, a lateral external panel of the box-section being partially cut away to show the positions of its locating tongues; 
         FIG. 7  is a top view similar to  FIG. 3  with the lateral box-sections in a folded position and the eyeglass lens omitted; 
         FIG. 8  is a detail view of the contents of the frame VIII in  FIG. 7 , specifically showing the locating tongues; 
         FIG. 9  is a top view of the flat blank from which the  FIG. 1  packaging is formed by joining together the shaded portions; and 
         FIG. 10  is a view similar to  FIG. 7  with the box-sections flattened out. 
     
    
    
     In the figures, the following conventions have been adopted for the sake of clarity:
         scoring lines are represented in thin chain-dotted line, for example the scoring line  44 ;   linear notches formed in the material of the packaging are represented in thick solid line (for example the notch  55 ); and   scoring lines formed by perforations are represented in thick dashed line (for example the scoring line  36 ).       

     However, the above conventions do not apply to the perspective views ( FIGS. 1 ,  2 ,  6 ). 
     Furthermore, because of their small size in the other figures, the scoring lines on the locating tongues are shown in accordance with the above convention only in  FIG. 8 . 
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to  FIGS. 1 and 3 , the packaging  1  includes a bottom panel  2 , two lateral box-sections  3 , two flaps  4 ,  5  and a closure panel  6 . 
     The lateral box-sections  3  are disposed along two opposite edges  7  of the bottom panel  2 ; they are identical, parallel to each other and rest along their entire length on the bottom panel  2 . 
     The box-sections  3  have a triangular section  8  (see  FIG. 1 ) that stiffens the structure, which is made from a sheet material such as cardboard. 
     This structure  8  of each box-section  3  is obtained by connecting an external lateral panel  10  to an intermediate panel  11  along a scoring line  9 , the intermediate panel  11  being itself connected to an internal lateral panel  13  along a scoring line  12 . All three panels  10 ,  11  and  13  are rectangular in shape, each having a length that is preferably equal to that of the edge  7  of the bottom panel  2  to which the corresponding box-section  3  is attached. 
     Each box-section  3  is attached to the bottom panel  2  along a scoring line  14  common to the edge  7  of the bottom panel  2  and to one linear end of the box-section  3  corresponding to one apex of the triangle defined by the section  8  of the box-section  3 . 
     Each box-section  3  is therefore formed by a triangular section  8  and is therefore mobile along the scoring line  14  between a folded down position in which the external lateral panel  10  is coplanar with the bottom panel  2  ( FIG. 7 ) and a raised position in which the external lateral panel  10  is perpendicular to the bottom panel  2  ( FIGS. 1 ,  3 ,  4  and  5 ). 
     Each box-section  3  has an opening  15  in its internal lateral panel  13 . The opening  15  has a rectangular shape centered lengthwise of the internal lateral panel  13 , one of the longer sides  16  delimiting it adjoining the bottom panel  2  and the other longer side  17  delimiting it adjoining the junction  12  of the internal lateral panel  13  and the intermediate panel  11 . The opening  15  is intended to have an eyeglass lens  18  at least partially engaged in it when the box-sections  3  are in the raised position, as may be seen in  FIG. 1 . 
     The length of the opening  15  is determined as a function of the maximum diameter of the lens  18  and the shape of the box-section  3 , and the opening is preferably fairly long to guarantee that the lens  18  abuts at least against the edges  19  laterally delimiting the opening when the lens is in place in the packaging  1  and the box-sections  3  are in the raised position. 
     Each box-section  3  further includes four locating tongues  20 ,  21  projecting from the edge  17  delimiting the opening  15  opposite the bottom panel  2 . They are articulated about a scoring line  22  adjoining said edge  17 . 
     The tongues  20 ,  21  are rectangular, and their length extends the full width of the opening  15 . 
     It is convenient to distinguish the two central tongues  20  of each box-section  3  situated on respective opposite sides of a median axis and the two lateral tongues  21  framing the central tongues and extending along the edges  19  delimiting the opening  15  laterally. 
     Be this as it may, the four locating tongues  20 ,  21  of each box-section  3  are juxtaposed to each other and adapted to occupy the whole of the section of the opening  15  when they are disposed in the plane of the internal lateral panel  13 . 
     The central tongues  20  and the lateral tongues  21  are unattached along their longer sides  23  and along their side  24  coinciding with the edge  16  delimiting the opening  15  adjoining the bottom panel  2 , and they are attached to the internal lateral panel  13  only by virtue of their attachment  22  to the edge  17  delimiting the opening  15  on the side opposite the bottom panel  2 . 
     Apart from the scoring lines  22  attaching them to the bottom panel  2 , the tongues  20 ,  21  each comprise three other transverse scoring lines  25  along their length and dividing each tongue  20 ,  21  into four approximately equal portions. 
     The overall result is to provide for each box-section  3  four tongues  20 ,  21  freely mobile about an axis  22  coinciding with the edge  17  delimiting the opening  15  on the side opposite the bottom panel  2 , this movement enabling the free end  26  of each tongue  20 ,  21  to assume a position on one side or the other of the plane of the internal lateral panel  13 . 
     It will be noted that this movement induces elastic deformation of the locating tongue  20 ,  21  at the level of the scoring line  22  attaching it to the internal lateral panel  13 , as a function of the elastic properties of the sheet material used to make the internal lateral panel  13  or the tongue  20 ,  21  (which material is cardboard in the present example). 
     Similarly, the tongues  20 ,  21  are adapted to deform elastically about each of the scoring lines  25  disposed along their length. 
     The flaps  4 ,  5  are disposed on respective opposite sides of two opposite edges  27 ,  28  of the bottom panel  2 , each extending along a scoring line  29 ,  30 , and they are therefore adjacent the box-sections  3 , which occupy the other two opposite edges of the bottom panel  2 . 
     As can be seen in  FIG. 9 , the bottom panel  2  is therefore extended from each of its edges  7 ,  27 ,  28  by four panels  4 ,  5 ,  10 , forming a star shape given that the flaps  4 ,  5  are rectangular in shape and substantially identical to the external lateral panels  10 . 
     Like the box-sections  3 , or to be more precise like the external lateral panels  10 , the flaps  4 ,  5  are mobile between a folded down position, in which the flap  4 ,  5  is coplanar with the bottom panel  2  ( FIGS. 3 ,  7  and  10 ), and a raised position, in which the flap  4 ,  5  upstands substantially perpendicularly to the bottom panel  2  ( FIG. 2 ). 
     As a result of this, when the flaps  4 ,  5  and the box-sections  3  are in the raised position, the flaps  4 ,  5  are positioned against the ends of the triangular sections  8  of the box-sections  3 , so that the flaps  4 ,  5  and the external lateral panels  10  form the sides of a box of which the bottom panel  2  forms the bottom (see  FIG. 2 ). 
     In the raised position, the shorter sides  31  of the flaps  4 ,  5  and the external lateral panels  10  coincide in pairs to form the edges of the box. 
     To facilitate bringing them into coincidence in this way, four gussets  32  form the junction between each edge  31  of the flaps and the adjacent edge  33  of the external lateral panel  10 . In  FIG. 9 , representing the blank  34  of the packaging  1 , the external lateral panels  10  and the flaps  4 ,  5  are in the plane of the bottom panel  2 . In this figure, each gusset  32  is seen as a panel connecting the flaps  4 ,  5  and the external lateral panel  10 , to which it is joined by two scoring lines  35 , one of which is in line with the scoring line  29 ,  30  connecting the flap  4 ,  5  to the bottom panel  2  and the other of which is in line with the scoring line  14  connecting the external lateral panel  10  to the bottom panel  2 . 
     Finally, the gusset  32  is completed by a central scoring line  36  extending from the corresponding corner  37  of the bottom panel  2  towards the end of the gusset  32  at an angle of 45°. As the box-sections  3  and the flaps  4 ,  5  are moved to the raised position, the gussets  32  fold inwards ( FIG. 1 ) and guarantee that when the flaps  4 ,  5  are held against the box-sections  3  the latter are immobilized in the raised position. 
     The packaging  1  for an eyeglass lens  18  further includes a closure panel  6  with identical dimensions to those of the bottom panel  2 , attached by a scoring line  38  to the free end of the flap  5 , so that the closure panel  6  forms a lid, parallel to the bottom panel  2 , for the box formed by the box-section  3  and the flaps  4 ,  5  in the raised position. 
     Means are provided for holding the closure panel  6  when exercising its lid function. In the present example those means comprise two attachment tongues  39  projecting from the closure panel  6 , to be more precise from its two opposite edges  40  that are perpendicular to the scoring line  38  connecting it to the flap  5 . Each attachment tongue  39  is delimited by a scoring line  41  in line with the edge  40  of the closure panel  6  and the tongues are adapted to cooperate with two notches  42  each formed in one of the intermediate panels  11 . 
     There is also provided a fold-down panel  43  projecting beyond a scoring line  44  on the edge  45  of the closure panel  6  opposite the flap  5  and over a distance approximately equal to the width of the flaps  5 ,  6 . 
     The fold-down panel  43  is itself extended on its side opposite the closure panel  6  by a third attachment tongue  46  extending along a scoring line  47  and adapted to cooperate with a notch  48  in the opposite flap  4 , where it joins at  29  to the bottom panel  2 . 
     Thus the packaging  1  can remain in the  FIG. 2  position with the box-sections  3  and the flaps  4 ,  5  in the raised position, the closure panel  6  covering them, and the fold-down panel  43  against the corresponding flap  4 . The three tongues  39 ,  46  inserted into their corresponding notches  42 ,  48  maintain the cohesion and the rigidity of the closed packaging  1 . 
     The above components cooperate to protect and locate the lens  18  in all directions in space. It can be seen in  FIGS. 1 and 2  that the lens  18  inside the packaging  1  is positioned along one of its diametral axes by the two lateral box-sections  3  and along a second of its diametral axes, perpendicular to the first, by the two flaps  4 ,  5 , the bottom panel  2  and the closure panel  6  assuming positions on respective opposite sides of the lens  18 , perpendicularly to the flaps  4 ,  5  and the box-sections  3 . 
     Thus the packaging  1  is ready to be transported, stacked or simply manipulated without damage to the eyeglass lens  18 . 
       FIG. 9  represents the blank  34  adapted to form the packaging  1  described above. 
     It includes a square central panel  49  in each corner of which two symmetrical cuts are made. A bottom panel  2 , two external lateral panels  10 , two flaps  4 ,  5  and four gussets  32  are delimited within this central panel  49 . 
     The following scoring lines on the central panel  49  delimit the respective portions referred to:
         two scoring lines  14  connect the bottom panel  2  to the external lateral panels  10 ;   two scoring lines  29 ,  30  connect the bottom panel  2  to the flaps  4 ,  5 ;   four scoring lines  35  connect the external lateral panels  10  to the gussets  32 ; and   four scoring lines  35  connect the flaps  4 ,  5  to the gussets  32 .       

     A central scoring line  36  is formed on each gusset  32  by a row of perforations. 
     The blank  34  also includes, extending from the edge  50  of each external lateral panel  10  opposite the bottom panel  2 , a box-section panel  51  attached by a scoring line  9  to said edge  50 . Each of these box-section panels  51  includes first and second single scoring lines  12  and  52  successively delimiting an intermediate panel  11 , an internal lateral panel  13  and a fixing panel  53 . 
     A scoring line  54  on the intermediate panel  11  crosses the panel  11  longitudinally along a median line, this scoring line  54  having three notches  55  distributed along its length to encourage folding. 
     The internal lateral panel  13  receives a cut-out  15  corresponding to the opening described above and corresponding to cutting out three sides of a rectangle, one of which coincides with said second scoring line  52 , as well as three cut-outs within said rectangle and perpendicular to the second scoring line  52 , delimiting four locating tongues  20 ,  21  attached at one end to the internal lateral panel  13 . 
     A single scoring line  22  is formed on each locating tongue  20 ,  21  where it is attached to the internal lateral panel  13  and three other transverse scoring lines  25  are distributed along the length of each tongue  20 ,  21 . 
     Finally, the blank  34  includes a lid panel  56  attached by a scoring line  38  to the free edge of one of the flaps  5 , this lid panel  56  including a scoring line  44  successively delimiting, from said free edge, a closure panel  6  and a fold-down panel  43 , the lid panel  56  having an attachment tongue  39 ,  46  on each of its free edges, two facing attachment tongues  39  adapted to cooperate with the two notches  42  at the junction  9  of the external lateral panels  10  and the intermediate panels  11 , and a third attachment tongue  46  adapted to cooperate with a notch  48  along the scoring line  29  joining the bottom panel  2  and the opposite flap  4 . 
     The packaging  1  for an eyeglass lens  18  is simply formed from the blank  34  described by gluing each fixing flap  53  to the corresponding edge  7  of the bottom panel  2  (shaded area in  FIG. 9 ) to juxtapose the scoring line  52  joining the internal lateral panel  13  to the fixing flaps  53  and the scoring line  14  joining the external lateral panel  10  to the bottom panel  2 . The external lateral panel  10 , the intermediate panel  11  and the internal lateral panel  13  therefore form a triangular section  8 . 
     Whereas  FIG. 9  represents the blank  34  before gluing,  FIG. 7  represents the blank  34  after the gluing operation has been carried out, the box-sections  3  being formed (they are seen from above in  FIG. 9 ), a simple bending operation to move the box-sections  3  to the raised position yielding the packaging  1  shown in  FIG. 1  ready for use. 
     In practice, the manufacturer of the packaging  1  first cuts out the contour of the blank  34 , after which the various notches and cut-outs are also formed, likewise the scoring lines, and the fixing flaps  53  are glued to the corresponding edge  7 , holding the box-sections  3  folded along their scoring line  54 , to obtain the flat blank shown in  FIG. 10 . The packaging  1  can therefore advantageously be shipped in packaging of its own in which the glued and flattened blanks  34  are stacked. 
     When the user receives one of these flat blanks, he first unfolds the intermediate panel  11  and moves the internal lateral panel  13  and the external lateral panel  10  away from each other, to make up the triangular sections  8  of the box-sections  3 . 
     As shown in  FIG. 7 , the packaging  1  is adapted to a packaging method in which the lens  18  is placed on the bottom panel  2 , after which the box-sections  3  are raised (see  FIGS. 1 and 3 ), the flaps  4 ,  5  are folded, and the closure panel  6  positioned to yield the closed packaging shown in  FIG. 2 . 
     For optimum location of an eyeglass lens  18 , there is provided a packaging  1  with a square bottom panel  2  with a side length approximately equal to the diameter of the lens  18 , which is therefore inserted into the openings  15  ( FIG. 1 ), pushing the locating tongues  20 ,  21  back towards the interior of the box-sections  3  ( FIGS. 4 ,  5  and  6 ). 
     In the  FIG. 6  diagram the external lateral panel  10  of one of the box-sections  3  is shown as if it were transparent to render visible the behavior of the locating tongues  20 ,  21  upon insertion of the lens  18  into the openings  15 . The curved contour of the lens  18  pushes the two central tongues  20  a greater distance towards the interior of the box-section  3  than the two lateral tongues  21 , which is possible because the locating tongues  20 ,  21  are not attached at the level of the edge  16  of the opening  15  level with the bottom panel  2 . 
       FIGS. 4 and 5  show the position of the tongues  20 ,  21  relative to the lens  18  as seen along the longitudinal axis of the box-sections  3 . It is apparent that the central locating tongues  20  of the box-sections  3  locate the lens  18  along one of its diameters, adapting to the circumference and to the profile of the contour of the lens  18 . The lateral locating tongues  21  also assume a position that adapts to the curvature of the lens  18  and exert a locating effect by virtue of the opposite pressure of each pair of corresponding facing tongues  20 ,  21  on each box-section  3 . The lateral tongues  21  also retain the lens  18  in the event of movement in translation in the longitudinal direction of the box-sections  3 , as their lateral edges abut laterally against the contour of the lens  18 , where the latter enters more deeply in line with the central tongues  20 . 
     The lens  18  is therefore located by the conjoint pressure of each pair of opposite central or lateral tongues  20 ,  21  on respective opposite sides of its diameter, and by virtue of the pressure of the four lateral tongues  21  forming a four-point cage adaptable to the contour of the lens  18  and preventing it from sliding laterally. 
     Apart from the positioning of the tongues  20 ,  21  referred to above, the function of the pressure applied to the lens  18  by the pairs of opposite tongues  20 ,  21  on each box-section  3  is conjointly assured by the elastic properties of the material of the tongues  20 ,  21  and by the configuration of the box-sections  3 , with the triangular section  8  enabling the free end  26  of a tongue, when it is forced towards the interior of the box-section  3 , to rise up along the internal wall of the external lateral panel  10  and where applicable to be braced against the latter (see  FIGS. 4 and 5 ), the scoring lines  25  distributed along the tongue  20 ,  21  encouraging this behavior. 
     It will be noted that the packaging described here can also be used to package and locate a circular contour object other than an untrimmed eyeglass lens, for example some other type of optical lens.