Patent Publication Number: US-2017349106-A1

Title: Dual wall vehicle storage system

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit of the disclosure of U. S. Provisional Patent Application No. 62/345,426, filed on Jun. 3, 2016, entitled “Dual Wall Truck Bed Liner,” the contents of which is incorporated herein by reference in its entirety. 
    
    
     FIELD OF THE INVENTION 
     The inventions herein relate generally to storage containers or boxes, and more particularly to utility boxes or storage systems integrated with the cargo bed of a pick-up truck. 
     BACKGROUND 
     Truck bed liners and spray-on liners for truck beds are known and used to protect the surfaces of the truck bed from scratches, dents, and other damage. These liners are typically made of a plastic material. 
     Tool or utility boxes designed for use in the beds of trucks, and specifically, pick-up trucks to store tools and other equipment are also known. These utility boxes typically include a bin and a lockable lid. Some such utility boxes include dividers, trays, and drawers to compartmentalize the storage area. Many of these storage containers span the width of the truck bed and are supported on the rails. Utility boxes and other storage accessories are also known which have various mechanisms for supporting themselves within a pick-up cargo bed. For example, the utility box can be supported on the bed side walls of a truck so that it is positioned above the floor of the cargo bed. Others are supported on legs to provide a space beneath the box. Some boxes are secured to the truck bed using bolts or anchors extending through truck bed walls. Many of these utility boxes are provided on the interior side walls of the truck bed, but such storage systems take up space within the truck bed, limiting the diverse use of the truck bed. In addition, these systems do not fully utilize the space as they are often installed forward or rearward of the truck&#39;s wheel well. In an attempt to solve the space concerns noted above, it is also known to provide storage compartments integrated into the side walls of a truck bed. These storage compartments are limited in size to the size of the truck bed sidewall and are accessible from the exterior of the bed (i.e., on the ground next to the truck). Unfortunately, these storage compartments must be created as part of the original engineering or manufacturing of the vehicle, increase the dimensions of the truck bed side walls, and consequently may also limit the size of the bed. 
     Accordingly, a need exists for a storage compartment which can be integrated into the truck bed, but which does not significantly impact the available space in the truck bed, and in particular the space between the wheel wells. 
     SUMMARY 
     A storage system for a pick-up truck is disclosed as shown in the drawings and written description. The storage system includes a primary panel secured to an inside sidewall of the truck cargo bed and extending over a wheel well of the truck. A secondary panel is joined to the primary panel. The primary panel and secondary panel form a container therebetween having an opening which extends over the wheel well of the truck. A lid pivotably connects to either the primary panel or the secondary panel and covers the opening. At least one of the primary panel, secondary panel and lid are of dual wall plastic construction to provide strength and rigidity to the storage system. 
     Additionally, a storage container for use in the cargo bed of a pick-up truck is disclosed. The storage container has a bin defining a storage compartment. The bin includes an upper rim defining an opening into the storage compartment. The bin also includes a back wall, two side walls, a base and a front wall. A lid is pivotally secured to the bin so as to contact the upper rim and cover the opening into the storage compartment when the lid is in a closed position. 
     An alternative storage system for a truck is also disclosed. The storage system includes an upper storage container and a lid pivotable to open and close the upper storage container. A lower storage container is provided, seated below the upper storage container and having an access door which is movable to open and close the lower storage container. 
     These and other features and advantages of devices, systems, and methods according to this invention are described in, or are apparent from, the following detailed descriptions of various examples of embodiments and the drawings and illustrations thereof. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       Various examples of embodiments of the systems, devices, and methods according to this invention will be described in detail, with reference to the following figures, wherein: 
         FIG. 1  is a partial perspective view of one or more examples of a vehicle having a storage system as described herein. 
         FIG. 2  is a cut-away perspective view of the vehicle shown in  FIG. 1 , showing an exemplary storage system as described herein, and having a lid of the storage system in a closed position. 
         FIG. 3  is a partial top plan view of the exemplary storage system shown in  FIG. 2 , taken from line  3 - 3  of  FIG. 2 . 
         FIG. 4  is a cut-away perspective view of the vehicle shown in  FIG. 1 , showing the storage system of  FIG. 2 , with the lid in an open position. 
         FIG. 5  is a partial top plan view of the storage system shown in  FIG. 4 , taken from line  5 - 5  of  FIG. 4 . 
         FIG. 6  is a partial exploded view of a primary panel for use with the storage system shown in  FIG. 2 . 
         FIG. 7  is a partial exploded view of the primary panel shown in  FIG. 6 , taken from the opposing side of said panel. 
         FIG. 8  is an exploded view, showing the primary and secondary panels of the storage system of  FIG. 2 . 
         FIG. 9  is a perspective view of the secondary panel shown in  FIG. 8 , showing the opposing side of the secondary panel. 
         FIG. 10  is a partial exploded perspective view, showing the lid-primary panel, secondary panel, and primary panel of the storage system shown in  FIG. 2 . 
         FIG. 11  is a partial exploded perspective view of a lid sub-assembly for use with the storage system shown in  FIG. 2 , showing the hinge and lid-primary panel. 
         FIG. 12  is a partial exploded perspective view of a lid sub-assembly for use with the storage system of  FIG. 2 , showing the weather strip and lock sub-assembly. 
         FIG. 13  is a cut-away partial exploded perspective view of a lock sub-assembly for use with the lid sub-assembly with the storage system shown in  FIG. 2 . 
         FIG. 14  is an exploded perspective view of the latch bracket sub-assembly for use with the lock sub-assembly and storage system. 
         FIG. 15  is a partial perspective view of the storage system shown in  FIG. 2 , showing an access door according to one or more examples of embodiments. 
         FIG. 16  is a perspective view of the access door shown in  FIG. 15  for use with the storage system of  FIG. 2 . 
         FIG. 17  is a partial exploded perspective view of the storage system shown in  FIG. 2 , showing an outlet shroud according to one or more examples of embodiments. 
         FIG. 18  is a partial perspective view of one or more alternative examples of a vehicle having an alternative example of a storage system. 
     
    
    
     It should be understood that the drawings are not necessarily to scale. In certain instances, details that are not necessary to the understanding of the invention or render other details difficult to perceive may have been omitted. It should be understood, of course, that the invention is not necessarily limited to the particular embodiments illustrated herein. 
     DETAILED DESCRIPTION 
     As illustrated in the Figures, a storage container  100  or storage system is provided which, in the arrangement shown in the Figures, is designed for use in one or more examples as a utility box for a vehicle. More specifically, the storage container  100  is for use with a truck  102 , such as a pick-up truck (see  FIGS. 1-2 ). The storage container  100  may be mounted in the cargo bed  104  of a pick-up truck  102 , and in particular along the sidewall or rail and over the wheel well  106  of the truck bed  104 . 
     In the illustrated embodiment, the truck cargo bed  104  is standard and its construction is known to those skilled in the art. Briefly, as shown in  FIG. 1 , the cargo bed  104  includes a bottom wall or floor  108 , opposite side walls  110  that include wheel well portions  106 , and a front wall  112 . The cargo bed  104  may be provided with a bed liner, such as a known “drop-in” under-the-rail plastic bed liner. However, it is also contemplated that the storage container  100  may be provided or used without a bed liner, or alternatively may be used with an alternative liner type, such as a conventional spray-in liner  114 , schematically shown in  FIG. 1  by stippling in the area of the reference number  114 . 
     As shown in  FIGS. 1-5 , the storage container  100  includes a container portion or bin that defines a storage compartment with an interior  116  for stowing tools, equipment, material, etc. Preferably, the panels and doors/lid of the storage compartment (described in more detail below) are formed of a material that is durable and water resistant, and more preferably of a material having higher dimensional stability and impact resistant characteristics, such as but not limited to thermoplastic polyolefins. In one or more examples of embodiments, the storage container  100  is preferably formed of panels of twin sheet thermoformed plastic or polymeric material, with each panel having a unitary construction. It is also contemplated that the storage container  100  can be so formed from sheets of thermoplastic material, such as high density polyethylene. Such plastic panels can also be formed by blow-molding, wherein the panels are formed by a different known process, but the resulting integral plastic panel consists of a unitary closed dual sheet structure as generally shown and described herein. Any such construction as described above is referred to herein as “dual wall” construction. In one or more embodiments, the material has a high density polyethylene surface, which can correspond to the headwall, floor, and/or tailgate liner material used. The panels and doors/lid (described in further detail below) can optionally be further insulated, such as by the inclusion of foam or other insulating material within the formed dual wall panels and/or lid. 
     The storage container  100 , in one or more examples of embodiments, is shown as provided or used in an area (or areas if two such containers are provided) covering or overlapping the wheel well(s)  106  in the bed  104  of the truck  102 . However, it is contemplated that storage containers may be provided for use with the headwall or front wall  112 , floor  108  and/or tailgate  118 . The storage container  100  design is adaptable to any specific bed design and bed length. While the container  100  may be installed during manufacture of the vehicle, it is preferably an aftermarket part which is installed post manufacture. The storage container  100  preferably substantially maintains the standard bed width of the truck bed  104 , and in particular the distance between the wheel wells  106 , and integrates with standard and optional bed features. 
     Referring to  FIGS. 2-5 , the storage container  100  is formed generally of a primary panel  120 , a secondary panel  122  joined to the primary panel, and a lid  124 . The respective panels may be separately formed and secured together by suitable fasteners (including but not limited to threaded fasteners such as screws) or alternatively each can be integrally formed as one or more units by use of twin sheet thermoforming or blow-molding equipment, methods and techniques, or other known plastic forming processes as previously described. 
     Additional accessories may be provided which are coupled to or integral with the storage container  100 . For example, a frame and access panel sub-assembly  128  may be provided which provides additional storage or alternatively, provides a structure surrounding or covering an electrical outlet (not shown). The frame  130  can be formed from or integral with the primary panel  120 . Additionally, as can be seen in the Figures, one or more tie downs  132  or loops may be provided in the storage container  100  or alternatively apertures may be provided in the primary panel  120  such that tie downs  132  such as loops or other structure provided on the truck bed  104  extend through apertures in the panel, e.g., panel  120 . One or more open storage bins with netting partially or completely forming one or more walls (not shown) for retention of stored articles may also be used in one or more examples of embodiments. 
     Referring to  FIGS. 6-7 , the exemplary primary dual wall panel  120  is shaped to conform with the contours of a truck sidewall and bed  104 . The primary panel  120  has a structure defining a pair of side walls  134 , a back wall  136 , and a base  138  of the container  100 . The back wall  136  and base  138  of the primary panel  120  include an upwardly arcuate portion  140 , or wheel well clearance area which corresponds to the wheel well  106  of the vehicle. In this regard, the base  138  may rest on the truck bed floor  108  along the side walls  110  of the truck, with the upwardly arcuate portion  140  accounting for the variation in truck bed  104  dimension. The base  138  may also include one or more drains  142  and drain plugs  144 . A portion  146  of a lock assembly is secured to an upper area  148  of the primary panel  120 . However, it is contemplated that said portion  146  of the lock assembly may also, or alternatively, be provided on the secondary panel  122 . The backwall  136  is also shown in  FIGS. 6-7  to have a plurality of spaced locking flanges  137  which extend upwardly therefrom for engagement by a retaining rail(s)  111  fastened to the sidewalls  110  of the truck cargo bed  104 . The retaining rail(s)  111 , best shown in  FIG. 104 , secure the overlapped locking flanges  137  against the truck sidewall  110  to thereby secure the storage container  100  in position along the sidewall as the storage container is further supported by the floor  108  and/or wheel well housing  106  of the truck cargo bed  104 . 
     It can be observed from  FIGS. 6-7  that the mating inside sheet of the dual wall, twin-sheet primary panel  120  shown in  FIG. 6 , and outside sheet of primary panel  120  shown in  FIG. 7 , have different contours, with the outside surface of  FIG. 7  in particular showing various depressed areas  121 . Such depressed areas  121 , which may be in the form of shallow depressions or ribs, as shown, together with the margins and other engineered contact portions of the two sheets are fused together during pressure forming of the twin-sheet primary panel to form an integral, generally rigid structural panel  120 , as known to persons skilled in the twin sheet thermoforming arts and shown in  FIGS. 6 and 7 . 
     The primary panel  120  also includes one or more widened clearance areas  150  and one or more lights or windows or lenses  152  useable to provide light to the interior  116  of the bin. In one exemplary embodiment, the lenses  152  permit natural light or light from the vehicle lighting system to enter the interior  116  of the bin. In the alternative, lights, such as but not limited to LED lights, may also be provided. The primary panel also has various attachment apertures  154 , permitting an attachment device or fastener  156 , such as shown in  FIG. 9 , to extend through the panels and into a portion of the vehicle  102  for securing the primary and secondary panels together. 
     Referring further to  FIGS. 8-9 , the secondary panel  122  is secured to the primary panel  120  at one or more panel wall edges  158 ,  160 ,  162  formed at the edges of the side walls  134  and base  138  of the primary panel  120 . In the illustrated example, a seal  164  or sealant is provided between the panels  120  and  122 . In one or more examples of embodiments, adhesive, e.g., mastic, may also be used to seal the primary panel  120  and secondary panel  122  together, to further assist in forming a water tight seal. The secondary panel  122  is secured to the panel wall edges  158 ,  160 ,  162  by one or more fasteners  156 , such as ringed or threaded fasteners or screws. The outside sheet of the secondary panel  122  may have a plurality of ridges and/or recesses or corrugations  166  on one or more surfaces, as best shown in  FIG. 9 . The ridges, recesses, corrugations and mating edges and surfaces of the panel  122  are typically pressure fused within the twin-sheet panel  122  to the opposing sheet at their contact areas by die pressure during pressure forming so as to provide integral structural rigidity for the panel  122 . In the illustrated embodiment, the height of the secondary panel  122  is shorter than the height of the primary panel  120 , consequently permitting easy access to the interior  116  of the bin. In the embodiment shown in  FIG. 9 , the secondary panel  122  also includes a wheel well recess  168  which is shaped to mate with the corresponding upwardly arcuate wheel well clearance area  140  of the primary panel  120 . The wheel well recess  168  provides a close fit or flush mounting of the secondary panel  122  with the outer edge of the wheel well  106  (i.e., the innermost edge of the wheel well in the truck bed). 
     Referring again to  FIGS. 4-5 , the primary panel  120  of the bin or container  100  includes an upper annular rim  170  that defines the opening through which access to the storage compartment is obtained. The upper rim  170  includes an annular seal surface  172  which in the illustrated arrangement is molded integrally with the rest of the bin. The seal surface  172  is engageable by a sealing gasket  174  along its periphery (see gasket  174  shown secured to lid  124  in  FIG. 4 ). More particularly, a full perimeter gasket  174  co-extensive with the length of the seal surface  172  is provided so as to help maintain a water tight compartment when the lid  124  is closed. 
     As indicated, the storage container  100  also includes a lid  124 . Referring to  FIGS. 10-14 , a lid  124  is provided which is hingedly or pivotably coupled to the container  100 . As shown in  FIGS. 2-5 &amp; 10 , the lid  124  is pivotally mounted on the bin  100  for movement between a closed position (shown in  FIGS. 2-3 ) and an open position (shown in  FIGS. 4-5 ). More specifically, the lid  124  is pivotally mounted on the front wall (i.e., the secondary panel  122 ) of the storage container  100 . As indicated, to prevent leakage between the lid  124  and the bin, the lid  124  may include a sealing surface  176  which engages the gasket  174  and the corresponding sealing surface  172  and overlies the sealing surface  172  of the upper rim  170  on the container  100  when the lid  124  is closed. 
     The lid  124  has a curved or angled shape. To this end, the lid  124  has a first segment  178  and a second segment  180 . The second segment  180  is provided at an angle to the first segment  178 . Preferably, the angle between the first and second segments  178 ,  180  is an angle other than 180 degrees, e.g., an angle less than 180 degrees, and in one example preferably approximately 90 degrees. As a result, when in the closed position (shown in  FIG. 2 ) the lid  124  has a substantially vertical portion which accounts for the height difference between the secondary panel  122  and the primary panel  120 , and the lid  124  has a substantially horizontal portion which covers the opening in the container. 
     The dual wall lid  124  also may have one or more ribs  182 , or other structure which provides added structural rigidity to the lid  124  when the two sheets thereof are fused together during the forming operation as previously described with respect to the primary panel  120  and the secondary panel  122 . As can be seen in  FIG. 5 , the lid  124  may also have additional structural features, such as one or more cup or beverage holders  184  and/or one or more containment areas  186 . In the illustrated embodiment, these cup holders  184  and containment areas  186  are provided on the interior sheet or side  188  of the lid  124 , but the cup holders  184  and/or containment areas  186  may also, or alternatively, be provided on the exterior sheet or side  190  of the lid  124 , which may be generally planar or have longitudinal inverse ribs, as best shown in  FIG. 2 . Typically, in an exemplary embodiment, the valleys of the ribs  182  of the interior side  188  of the lid  124  will run at angles to the inverse ribs of the exterior side  190 , and the two sides will be fused together in the forming operation between the ribs and at other junction points at the margins and engineered interior junction points to provided rigidity and strength to the lid  124 . 
     In the illustrated example, the lid  124  is hingedly connected to a top portion  192  of the secondary panel  122 . However, the lid  124  may be otherwise connected to the primary panel  120  or another structure without departing from the overall scope of the present invention. In the illustrated example, the lid  124  is pivotally mounted to the front wall or secondary panel  122  with a fixed hinge  194 . More specifically, the lid  124  is secured to one “wing” of a hinge  194 . A second wing of the hinge  194  is also secured to the secondary panel  122 . In one or more examples of embodiments, the hinge  194  is secured to the lid  124  and panel by one or more ringed or threaded fasteners  196 . However, variations thereon may be suitable for the purposes provided. The hinge  194  illustrated in the Figures is a common “piano” type hinge, but alternative hinges, more than one hinge, and other various means of pivotably securing the components together may be acceptable. As a non-limiting example, the secondary panel  122  and lid  124  may be joined by a “living” flexible plastic hinge integral or connected to the secondary panel  122  and the lid  124 . The lid  124  is connected such that it opens by rotating into or toward the center of the truck bed  104 . As indicated, the lid  124 , optionally, includes a seal or gasket surrounding an outer edge of the lid  124 , useful for preventing water and other environmental elements from entering the closed container  100 . 
     The lid  124  also includes a lock sub-assembly  198 . The lock sub-assembly  198  includes a locking mechanism  200  and a corresponding latch bracket assembly  202 . The latch bracket assembly  202  is secured to the lid  124  and holds the locking mechanism  200 . As shown in  FIGS. 12-14 , a latch mechanism may be provided for locking and unlocking the lid  124 . In one or more examples of embodiments, a programmable lock may be provided which may be keyed to match the vehicle key. Any conventional lock and latching mechanism may be provided as required. 
     Referring to  FIGS. 15-16 , an access door  206  is provided in a frame portion  130  of the primary panel  120 . The combination of access door  206  and frame portion  130  provides an area of additional storage and/or provides a cover for an outlet or the like. In this regard, this accessory accommodates vehicle power outlets. In other words, an electrical outlet may be provided behind the access door  206  or at any convenient location accessible within or through the storage container  100 . As can be seen in  FIG. 17 , an outlet shroud  212  is provided on the back surface  214  of the primary panel  120 . (The storage container  100  may also, optionally, be provided with a DC/AC power inverter  208 , as in the alternate embodiment of  FIG. 18 ). The access door  206  is provided with a latch  210  that may be hand-operable and secures the access door  206  in place on the frame portion  130 . The access door  206  may also have one or more retaining protrusions or extensions  216  which engage a portion of the frame  130  or primary panel  120  on an end of the access door  206 . The latch  210  may receive and cooperate with a programmable key. 
     Referring to  FIG. 18 , an alternative example of embodiments is provided in which a plurality of storage bins  300 ,  310 ,  320  are provided in the storage container. In the illustrated example, an overwheel storage bin  300  is provided adjacent to an upper storage bin  310  and lower storage bin  320 . The upper storage bin  310  and overwheel storage bin  300  have hinged lids,  330 ,  340 , respectively, while the lower storage bin  320  is provided with an access panel  350 . Other features as previously described herein are also shown and may be otherwise added to the assembly shown in  FIG. 18 . 
     One or more examples of assembly of the storage container  100  will now be described in reference to the drawings. The panels and various accessories of the storage container  100  may be assembled together and then placed into the vehicle bed  104 , or alternatively may be installed directly or individually in the vehicle bed  104 . The primary panel  120  is placed along the sidewall and over the wheel well  106  of the truck bed  104 . The primary panel  120  may be attached to the sidewall of the truck bed  104  by any suitable means, including the previously described backwall locking flanges  137  secured to the truck sidewall by retaining rail  111 . The secondary panel  122  is secured to the primary panel  120  using the mechanisms described above. The lid  124  may be secured to the secondary panel  122  with a hinge  194 . Various additional accessories may be added to the primary panel  120  as described herein, such as but not limited to, the outlet shroud and access door  206 . 
     Once installed, a user may access the interior of the storage container  100  or bin by pivoting or rotating the lid  124  about its hinge  194  from the closed position ( FIG. 2 ) to the open position ( FIG. 4 ). If a lock assembly is installed, the user may key open the lock prior to opening the lid  124 . Once the lid  124  is open, the user may access the interior to store or retrieve items, and then subsequently close the lid  124 . 
     Advantageously, the storage container described herein is integrated into the truck bed, but does not significantly impact the available space in the truck bed, and in particular the space between the truck wheel wells  106 . As a result, for example, standard sheets of plywood will still fit flat between wheel wells. Moreover, the storage container is easy to install and remove, and does not require damage to the truck bed as a drill is not required for installation. The storage container is also water tight, protecting the contents from the environment and allowing users to use the container like a cooler. The storage container may include lenses and/or lighting, increasing visibility within the container. The storage container is also adaptable for use with a vehicle on which it is installed, accommodating vehicle lighting and power outlet(s), and providing programmable locks to match the vehicle key. 
     As utilized herein, the terms “approximately,” “about,” “substantially,” and similar terms are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that functional insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the invention as recited in the appended claims. 
     It should be noted that references to relative positions (e.g., “top” and “bottom”) in this description are merely used to identify various elements as are oriented in the Figures. It should be recognized that the orientation of particular components may vary greatly depending on the application in which they are used. 
     For the purpose of this disclosure, the term “coupled” means the joining of two members directly or indirectly to one another. Such joining may be stationary in nature or moveable in nature. Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another. Such joining may be permanent in nature or may be removable or releasable in nature. 
     It is also important to note that the construction and arrangement of the system, methods, and devices as shown in the various examples of embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements show as multiple parts may be integrally formed, the operation of the interfaces may be reversed or otherwise varied, the length or width of the structures and/or members or connector or other elements of the system may be varied, particularly to accommodate the manufactured dimensions of any past or future marketed truck bed, the nature or number of adjustment positions provided between the elements may be varied (e.g. by variations in the number of engagement slots or size of the engagement slots or type of engagement). The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the various examples of embodiments without departing from the spirit or scope of the present inventions. 
     While this invention has been described in conjunction with the examples of embodiments outlined above, various alternatives, modifications, variations, improvements and/or substantial equivalents, whether known or that are or may be presently foreseen, may become apparent to those having at least ordinary skill in the art. Accordingly, the examples of embodiments of the invention, as set forth above, are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit or scope of the invention. Therefore, the invention is intended to embrace all known or earlier developed alternatives, modifications, variations, improvements and/or substantial equivalents. 
     The technical effects and technical problems in the specification are exemplary and are not limiting. It should be noted that the embodiments described in the specification may have other technical effects and can solve other technical problems.