Abstract:
There is disclosed herein a box-like container for use in mailing rectangular items such as a book. The container includes shaped outwardly extending and longitudinal side edge and corner formations that form protectors so that items carried within the container are protected from forces impacting on the side edges or corners of the container. This container may be opened so as to receive book-like items either for individual mailing or mass mailing. Moreover, various types of end formations are provided for closure and sealing of the container. A blank from which the foregoing container is fabricated is also disclosed.

Description:
BACKGROUND OF THE INVENTION 
     This invention relates to containers, and more specifically to mailing devices. 
     Mailing devices are known in the industry and are generally containers, usually boxes, which are folded from cardboard blanks to form the container into which articles to be shipped are placed. These containers are sometimes known as mailers. Books are regularly shipped in rectangularly-shaped boxes which can be easily mailed. Mailers in addition to providing a container for the item are intended to protect the item. Present book mailers have a problem in that the corners and/or sides of the containers may be damaged during handling and shipping, and as a result, a book therein may also be damaged, usually at corners or along its sides. 
     It is therefore an object of this invention to provide a container with corner and/or side formations which are constructed to minimize damage to a book or the like contained therein. 
     Moreover, such containers are used for shipment by both individuals and mass mailings. Therefore, it is an object to provide containers which are suitable for both individual and mass mailings and which can be loaded manually or automatically. 
     These and other objects of this invention will become apparent from the following disclosure and appended claims. 
     SUMMARY OF THE INVENTION 
     There is disclosed herein a box-like container for use in mailing rectangular items such as a book, which includes shaped outwardly extending and elongated side edge and corner formations that form protectors so that items carried within the container are protected from forces impacting on the side edges or corners of the container. This container may be opened so as to receive book-like items, either for individual mailing or mass mailing. Moreover, various types of end formations are provided for the closure and sealing of the container. A blank from which the foregoing container is fabricated is disclosed. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of a container in accordance with this invention and having the elongated, projecting and protective side edges and corner formations and having an end flap closure; 
     FIG. 2 is an end elevational view of the container of FIG. 1 with a book shown in phantom; 
     FIG. 3 is an enlarged fragmentary plan view showing one end of the container of FIG. 1; 
     FIG. 4 is an end view of a container similar to that shown in FIG. 1 and showing an end closure system; 
     FIG. 5 is a development view of a blank from which the container such as shown in FIG. 1 is fabricated and showing various cut and score lines; 
     FIG. 6 is an open end view of a modification whereby the end of a container has a self-sealing end system and a zipper opening system; 
     FIG. 7 is a view similar to FIG. 6 but showing the closure of the system; 
     FIG. 8 is a perspective view showing a similar type of system to that of FIG. 1 but showing interlocking closure tabs; 
     FIG. 9 is a sectional view taken along line IX--IX of FIG. 8 and showing interlocking tabs inserted into a container; 
     FIG. 10 is a sectional view taken along line X--X of FIG. 8 also showing interlocking of the interlocking tabs inserted into the container; and 
     FIG. 11 is a development view of a blank which is cut and scored for use in the tab-type of system shown in FIGS. 3, 8, 9 and 10. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIG. 1 in conjunction with FIG. 5, there is shown a mailer 10 generally which includes a bottom, primary or central panel 12, a pair of smaller top or secondary panels 14 and 16, and protective side formations or projections 18 and 20 along the sides of the container. The side projections, such as 18 and 20, are triangularly-shaped formations which extend outwardly from the container and also form end or corner projections. In the event the container is damaged during handling and shipping, it is believed that the side or end formations will engage a potentially damaging surface or object and protect articles in the container such as books or other articles susceptible to damaging deformation. 
     An end closure is provided at one end of the mailer in the form of an outer end wall 22b and an end flap 24b. An adhesive tape 26 is shown securing the end flap 24b to the top panels 14 and 16. 
     Referring further to the blank for such a box as shown in FIG. 5, the bottom wall 12 is defined by score lines 12a, 12b, 12c and 12d. The end panel outer walls, such as 22a and 22b, are attached to the central panel via score lines 12a and 12c and are edged by the score lines, such as 12a, 22c, 22d &amp; 22e and 12c, 22f, 22g &amp; 22h. End flaps such as 24a and 24b are connected to the respective outer end wall formations via the score lines such as 22d and 22g. The outer sides of the end flaps 24a and 24b are formed by cut lines 24c and 24d. Each of the side formations, such as 18 and 20, are formed by two panels between the top and bottom panels such as 30a &amp; 32a and 30b &amp; 32b. The bottom side panels such as 30a and 30b are formed by score lines such as 12b, 30c, 30d &amp; 30e and 12d, 30f, 30g &amp; 30h. The top side panels 32a and 32b are formed by the score lines such as 30d, 32c, 32d &amp; 32e and 30g, 32f, 32g &amp; 32h. 
     It is to be noted that the top or secondary wall is formed by panels 14 and 16 which are in effect half panels and are bounded by the score lines 32d &amp; 32g, 16a &amp; 16b and 14a &amp; 14b. The free edge of the panel 16 has a glue flap 16c which can be extended or voided. If voided, the edge 14c can be placed in abutting adjacency and a strip of adhesive material adhered to the adjoining edges. 
     It is to be noted that the spacing dimension between the side wall score lines, such as 12b and 32d, is greater than the spacing dimension of the end panels 22a and 22b which corresponds to the thickness of the item to be contained. Thus, the end panels 22a and 22b approximate the size of a book B (shown in phantom in FIG. 2) to be mailed in the container 10, and when assembled the distance between the main panel 12 and the secondary panels 14 and 16 approximate the book. When assembled the side wall formations form an outwardly projecting cushion or triangularly shaped protective barrier which serves to cushion or protect the sides and edges of the article. The inner end walls 38a, 38b, 38c &amp; 38d are formed adjacent the secondary panels. These walls are formed by score lines, such as 16a &amp; 38e, 16b &amp; 38f, 14a &amp; 38g, and 14b &amp; 38h. 
     The side walls and inner and outer end walls are connected via triangularly-shaped, gusset-like elements 34a, 34b, 34c &amp; 34d and 36a, 36b, 36c &amp; 36d. These elements are shown connected to the respective walls by the score lines indicated. It is noted that the score lines 30d and 30g dividing the two side wall panels are longer than the score lines 12b and 12d and thus form triangular gusset-like elements having an apex where the line 30d engages the elements 34a and 36a is positioned about centrally of the end walls on either end. 
     To form the container, the top walls 14 and 16 are folded upwardly over the bottom wall 12, and thus form the side walls into the side projections. The inner end wall 38c is folded downwardly to close the container, which leaves open the end wall 22b and end flap 24b. The end wall 22a is folded upwardly and the flap 24a is sealed to close the container. Using this type of formation, a structure such as shown in FIG. 1 is produced. 
     In terms of use and in individual situations, the end walls, such as 38c and 38d, are open, a book is inserted into the mailer, the walls 38c and 38d are closed, then the end wall 22b is folded upwardly thereover, and end flap 24b is folded onto panels 14 and 16 and adhered in position. 
     In terms of machine use, the walls 14 and 16 are folded over and joined either by taping or with the use of the glue flap 16c. The mailer in flat condition can then be opened by squeezing on the side formations 18 and 20 thereby to open the mouth of the mailer at both ends. A book or other article can be inserted in one end, for example, the end 22b, 24b, whereupon adhesive can be applied along flap 24b and the mailer closed and sealed shut. The opposite end 22a, 24a can be closed and sealed in a similar manner. 
     A related construction is shown in FIGS. 6 and 7. In FIG. 6 the basic mailer design, generally referred to as 50, is used and a perforated zipper-type of construction is shown at 52 for opening the mailer 50 and extends transversely thereacross. The end panels have a similar construction but have an adhesive pad 60 along one end wall 54 and no end flap. In operation, the inner end walls 56 and 58 are closed, and the outer end wall 54 is folded upwardly so that the adhesive pad 60 will bond to the inner end walls thereby forming a sealed package. 
     Turning now to FIGS. 8-11, yet another embodiment of this system is shown. In this embodiment an interlocking tab system is provided securing the closure flap in position and preventing opening of the mailer without giving an indication of tampering. 
     Referring to FIG. 11, the box blank 100 is shown. The blank 100 includes a bottom panel 102 and a pair of top half panels 104 and 106 trapezoidally shaped and projecting side walls 108 and 110, which connect the main panel 102 with the top panel 106. Panels 112 and 114 connect the main panel 102 to the other top panel 104. These panels are defined by the score lines as shown. End panels such as 116 and 120 and flaps such as 118 and 122 are provided. The panels, such as 116, form the outer end wall and the panel 118 forms the flap which is folded over onto the top. The panel 118 also includes end panel formations 124 and 126, which are foldable along score lines 128 and 130. The tabs 132 and 134 define a pointed and four-sided figure and are connected to the end tabs 124 and 126 by score lines 136 and 138. A similar end flap and end tab construction is provided at the other end of the box in connection with panel 122. 
     Slots 140, 142, 144 and 146, are provided in the top panels 104 and 106 along the score lines or adjacent with the side edges. These slots are arranged to cooperate with the end tabs 124 and 126. Interior end wall panel formation, such as 148, 150, 152 and 154, are provided. They cooperate with the triangularly-shaped side or gusset panels 156, 158, 160, 162, 164, 166, 168 and 170. The blank is shown assembled in FIG. 8. Here the box is formed and the end panel 122 is flat or horizontal. In order to close the system as shown at the other end of the box, the end tabs 126 are folded along score lines 130 and 124 along line 128. This raises the locking tab into a position transverse to the flap 118. When the box is formed the locking tabs fit into the slots 140 and 142. In other words, by folding tab 134 180° on line 138 and tab 132 180° on line 136, tab 132 and 134 can fit into slots 140 and 142, thereby locking the box in a closed position. 
     As shown in FIG. 9, the tabs 126 and 124 and the locking tabs 132 and 134 are pressed into the slots 140 and 142 for locking the flap 118 down onto the body of the mailer. 
     Referring now to FIG. 10, tab 126 and tab 134 are shown. The locking part 132 of the tab 124 folds to the outside panels 110 and 108 and after insertion, flips toward the panels 110 and 108. With the size of the angled tab being larger than the opening created by the panels 108 and 110, the tab 132 will hang up on panel 110 at about an 80° angle to the adjoining panel 124. Using a mailer of the type disclosed in FIGS. 8-11, the mailer can be used when inserting books, either manually or by machine. 
     Although the invention has been described with respect to preferred embodiments, it is not to be so limited as changes and modifications can be made which are within the full intended scope of the invention as defined by the appended claims.