Patent Grant
11020930
This invention is in the field of packaging systems and materials. More specifically, this invention is in the field of protective packaging.
In the context of paper-based protective packaging, paper sheet is crumpled to produce dunnage. Most commonly, this type of dunnage is created by running a generally continuous strip of paper into a dunnage conversion machine that converts a compact supply of stock material, such as a roll of paper or a fanfold stack of paper, into a lower density dunnage material. The supply of stock material, such as in the case of fanfold paper, is pulled into the conversion machine from a stack that is either continuously formed or formed with discrete section connected together. The continuous strip of crumpled sheet material may be cut into desired lengths to effectively fill void space within a container holding a product. The dunnage material may be produced on an as-needed basis for a packer.
Dunnage supply material may be chainable. For example, the dunnage supply arrangement comprises a first supply unit of an elongated web of material in a high-density arrangement, where the material may be converted into a low-density dunnage, and the connecting member may include an adhesive surface for adhering to a longitudinal second end of a second supply unit of material with sufficient adhesion for pulling the material of the second supply unit into the dunnage mechanism (e.g., Publication Classification daisy chaining the two supply units together), as described in more detail in U.S. Patent Application Publication No. 2014/0038805, the entire content of which is incorporated herein by this reference.
Embodiments may include a stock material unit for a dunnage conversion machine. The stock material unit includes a continuous sheet of material at least partially defining a three-dimensional body and including a tapered sheet section defined by a plurality of slanted folds and positioned adjacent to at least one face of the three-dimensional body, and a splice member. The splice member includes a base having a first side attached to a portion of the continuous sheet of foldable material that is positioned adjacent to the tapered sheet section and has an opposite, second side. The splice member also includes a connector that has a first portion non-removably attached to the tapered sheet section and a second portion removably attached to at least a portion of the second side of the base.
The stock material unit described above may have a periphery of the splice member that is defined by two opposing linear sides and by two generally curved sides extending between linear sides.
The stock material unit described above may have one side of the two linear sides that is longer than the other side of the two linear sides.
The stock material unit described above may have the base that has a greater area than the connector.
The stock material unit described above may have the continuous sheet that defines a fanfold.
The stock material unit described above may have the continuous sheet that includes a plurality of substantially parallel folds that define opposing sheet sections that are folded along the continuous sheet of foldable material, and the plurality of slanted folds have a non-parallel orientation relative to the plurality of substantially parallel folds.
The stock material unit described above may have the plurality of slanted folds define another tapered sheet section positioned adjacent to the tapered section, and the base that is attached to at least a portion of the another tapered sheet section.
The stock material unit described above may have at least a portion of the second face of the base that includes a release layer.
The stock material unit described above may have tapered section that includes four layers of the continuous sheet.
The stock material unit described above may have the connector that is adhesively attached to the tapered sheet section.
The stock material unit described above may have the connector that is adhesively attached to the base.
The stock material unit described above may have the connector that includes an adhesive side facing upward and a non-adhesive side facing downward.
The stock material unit described above may have the tapered sheet section that is generally triangular and includes a peak that is positioned near a longitudinal center of the three-dimensional body.
Embodiments include a stock material unit for a dunnage conversion machine. The stock material unit includes a fanfold at least partially defining a three-dimensional body and including a sheet section positioned adjacent to at least one face of the three-dimensional body and extending from an edge of a peripheral face the three-dimensional body to a location that is spaced from an opposite edge of the peripheral face. The stock material unit also includes a splice member. The splice member includes a base that has a first side attached to a portion of the peripheral face, and a connector that has a first portion non-removably attached to the sheet section and a second portion removably attached to at least a portion of the second side of the base.
The stock material unit described above may have the sheet section that is defined by a plurality of slanted folds and has a generally triangular shape.
Embodiments include a dunnage conversion system that includes a dunnage conversion machine, one or more stock material units for the dunnage conversion machine (e.g., as described above), and a unit carrier securing the one or more stock material units.
Embodiments include a stock material unit for a dunnage conversion machine. The stock material unit includes a continuous sheet of material at least partially defining a three-dimensional body and including a tapered sheet section defined by a plurality of slanted folds and positioned adjacent to at least one face of the three-dimensional body, and an adhesive positioned near at least a portion of the tapered sheet section.
The stock material unit described above may have the tapered sheet section that includes a tip that is defined by four layers of the continuous sheet.
Embodiments may include a method of assembling a stock material unit for a dunnage conversion machine. The method includes providing a fanfold stack that includes a plurality of substantially parallel folds that define opposing sheet sections that are folded along the continuous sheet, and a plurality of slanted folds having a non-parallel orientation relative to the plurality of substantially parallel creases and defining a tapered sheet section. The method also includes attaching a base of a splicing assembly to a portion of the tapered sheet section, and non-removably attaching a portion of a connector of the splicing assembly to the tapered sheet section. Moreover, the method includes removably attaching another portion of the connector to the base, thereby securing the tapered sheet section to the portion of the continuous sheet that is adjacent to the tapered sheet section.
The method described above may include folding a continuous sheet to form the fanfold stack.
The method described above may include folding a portion of the tapered sheet section about a fold line to align a tip thereof with an edge of a three-dimensional body defined by the fanfold stack. Moreover, attaching a base of a splicing assembly to a portion of the tapered sheet section may involve positioning an edge of the base near the fold line.
Embodiments may include a method of splicing multiple stock material units for a dunnage conversion machine. The method includes folding a tapered section of the second stock material unit, thereby orienting upward an adhesive side of a connector that is attached to the tapered section, and orienting a non-adhesive side of the connector downward. The method also includes positioning a first stock material unit of the multiple stock material units for the dunnage conversion machine over a second stock material unit of the multiple stock material units for the dunnage conversion machine, thereby connecting together the first stock material unit with the second stock material unit.
The method described above may have the periphery of the connector defined by two opposing linear sides and by two generally curved sides extending between linear sides.
The drawing figures depict one or more implementations in accordance with the present concepts, by way of example only, not by way of limitations. In the figures, like reference numerals refer to the same or similar elements.
A system and apparatus for converting a stock material into dunnage is disclosed. The present disclosure is generally applicable to systems and apparatus where supply material, such as a stock material, is processed. The stock material is processed by longitudinal crumple machines that form creases longitudinally in the stock material to form dunnage or by cross crimple machines that forms creases transversely across the stock material. The stock material may be stored in a roll (whether drawn from inside or outside the roll), a wind, a fan-folded source, or any other form. The stock material may be continuous or perforated. The conversion apparatus is operable to drive the stock material in a first direction, which can be a dispensing direction. The conversion apparatus is fed the stock material from the repository through a drum in a dispensing direction. The stock material can be any type of protective packaging material including other dunnage and void fill materials, inflatable packaging pillows, etc. Some embodiments use supplies of other paper or fiber-based materials in sheet form, and some embodiments use supplies of wound fiber material such as ropes or thread, and thermoplastic materials such as a web of plastic material usable to form pillow packaging material.
The conversion apparatus is used with a cutting mechanism operable to sever the dunnage material. More particularly, the conversion apparatus including a mechanism for cutting or assisting the cutting of the dunnage material at desired lengths is disclosed. In some embodiments, the cutting mechanism is used with no or limited user interaction. For example, the cutting mechanism punctures, cuts, or severs the dunnage material without the user touching the dunnage material or with only minor contact of the dunnage material by the user. Specifically, a biasing member is used to bias the dunnage material against or around a cutting member to improve the ability of the system to sever the dunnage material. The biased position of the dunnage material is used in connection with or separately from other cutting features such as reversing the direction of travel of the dunnage material.
With reference to
In accordance with various examples, as shown in
The stock material 19 is fed from the supply side 61 through the intake 70. The stock material 19 begins being converted from dense stock material 19 to less dense dunnage material 21 by the intake 70 and then pulled through the drive mechanism 250 and dispensed in a dispensing direction A on the out-feed side 62 of the intake 70. The material can be further converted by the drive mechanism 250 by allowing rollers or similar internal members to crumple, fold, flatten, or perform other similar methods that further tighten the folds, creases, crumples, or other three dimension structure created by intake 70 into a more permanent shape creating the low-density configuration of dunnage material. The stock material 19 can include continuous (e.g. continuously connected stacks, rolls, or sheets of stock material), semi-continuous (e.g. separated stacks or rolls of stock material), or non-continuous (e.g. single discrete or short lengths of stock material) stock material 19 allowing for continuous, semi-continuous or non continuous feeds into the dunnage conversion system 10. Multiple lengths can be daisy-chained together. Further, it is appreciated that various structures of the intake 70 on longitudinal crumpling machines can be used, such as those intakes forming a part of the converting stations disclosed in U.S. Pat. Pub. No. 2013/0092716, U.S. Publication 2012/0165172, U.S. Publication No 2011/0052875, and U.S. Pat. No. 8,016,735. Examples of cross crumpling machines include U.S. Pat. No. 8,900,111.
In one configuration, the dunnage conversion system 10 can include a support portion 12 for supporting the station. In one example, the support portion 12 includes an inlet guide 70 for guiding the sheet material into the dunnage conversion system 10. The support portion 12 and the inlet guide 70 are shown with the inlet guide 70 extending from the post. In other embodiments, the inlet guide may be combined into a single rolled or bent elongated element forming a part of the support pole or post. The elongated element extends from a floor base configured to provide lateral stability to the converting station. In one configuration, the inlet guide 70 is a tubular member that also functions as a support member for supporting, crumpling and guiding the stock material 19 toward the drive mechanism 250. Other inlet guide designs such as spindles may be used as well.
In accordance with various embodiments, the advancement mechanism is an electromechanical drive such as an electric motor 11 or similar motive device. The motor 11 is connected to a power source, such as an outlet via a power cord, and is arranged and configured for driving the dunnage conversion system 10. The motor 11 is an electric motor in which the operation is controlled by a user of the system, for example, by a foot pedal, a switch, a button, or the like. In various embodiments, the motor 11 is part of a drive portion, and the drive portion includes a transmission for transferring power from the motor 11. Alternatively, a direct drive can be used. The motor 11 is arranged in a housing and is secured to a first side of the central housing, and a transmission is contained within the central housing and operably connected to a drive shaft of the motor 11 and a drive portion, thereby transferring motor 11 power. Other suitable powering arrangements can be used.
The motor 11 is mechanically connected either directly or via a transmission to a drum 17, shown in
In accordance with various embodiments, the dunnage conversion system 10 includes a pinch portion operable to press on the material as it passes through the drive mechanism 250. As an example, the pinch portion includes a pinch member such as a wheel, roller, sled, belt, multiple elements, or other similar member. In one example, the pinch portion includes a pinch wheel 14. The pinch wheel 14 is supported via a bearing or other low friction device positioned on an axis shaft arranged along the axis of the pinch wheel 14. In some embodiments, the pinch wheel can be powered and driven. The pinch wheel 14 is positioned adjacent to the drum such that the material passes between the pinch wheel 14 and the drum 17. In various examples, the pinch wheel 14 has a circumferential pressing surface arranged adjacent to or in tangential contact with the surface of the drum 17. The pinch wheel 14 may have any size, shape, or configuration. Examples of size, shape, and configuration of the pinch wheel may include those described in U.S. Pat. Pub. No. 2013/0092716 for the press wheels. In the examples shown, the pinch wheel 14 is engaged in a position biased against the drum 17 for engaging and crushing the stock material 19 passing between the pinch wheel 14 and the drum 17 to convert the stock material 19 into dunnage material 21. The drum 17 or the pinch wheel 14 is connected to the motor 11 via a transmission (e.g., a belt drive or the like). The motor 11 causes the drum or the pinch wheel to rotate.
In accordance with various embodiments, the drive mechanism 250 may include a guide operable to direct the material as it is passes through the pinch portion. In one example, the guide may be a flange 33 mounted to the drum 17. The flange 33 may have a diameter larger than the drum 17 such that the material is kept on the drum 17 as it passes through the pinch portion.
The drive mechanism 250 controls the incoming dunnage material 19 in any suitable manner to advance it from a conversion device to the cutting member. For example, the pinch wheel 14 is configured to control the incoming stock material. When the high-speed incoming stock material diverges from the longitudinal direction, portions of the stock material contacts an exposed surface of the pinch wheels, which pulls the diverging portion down onto the drum and help crush and crease the resulting bunching material. The dunnage may be formed in accordance with any techniques including ones referenced to herein or ones known such as those disclosed in U.S. Pat. Pub. No. 2013/0092716.
In accordance with various embodiments, the conversion apparatus 10 can be operable to change the direction of the stock material 19 as it moves within the conversion apparatus 10. For example, the stock material is moved by a combination of the motor 11 and drum 17 in a forward direction (i.e., from the inlet side to the dispensing side) or a reverse direction (i.e., from the dispensing side to the supply side 61 or direction opposite the dispensing direction). This ability to change direction allows the drive mechanism 250 to cut the dunnage material more easily by pulling the dunnage material 19 directly against an edge 112. As, the stock material 19 is fed through the system and dunnage material 21 it passes over or near a cutting edge 112 without being cut.
Preferably, the cutting edge 112 can be curved or directed downward so as to provide a guide that deflects the material in the out-feed segment of the path as it exits the system near the cutting edge 112 and potentially around the edge 112. The cutting member 110 can be curved at an angle similar to the curve of the drum 17, but other curvature angles could be used. It should be noted that the cutting member 110 is not limited to cutting the material using a sharp blade, but it can include a member that causes breaking, tearing, slicing, or other methods of severing the dunnage material 21. The cutting member 110 can also be configured to fully or partially sever the dunnage material 21.
In various embodiments, the transverse width of the cutting edge 112 is preferably about at most the width of the drum 17. In other embodiments, the cutting edge 112 can have a width that is less than the width of the drum 17 or greater than the width of the drum 17. In one embodiment, the cutting edge 112 is fixed; however, it is appreciated that in other embodiments, the cutting edge 112 could be moveable or pivotable. The edge 112 is oriented away from the driving portion. The edge 112 is preferably configured sufficient to engage the dunnage material 21 when the dunnage material 21 is drawn in reverse. The edge 112 can comprise a sharp or blunted edge having a toothed or smooth configuration, and in other embodiments, the edge 112 can have a serrated edge with many teeth, an edge with shallow teeth, or other useful configuration. A plurality of teeth are defined by having points separated by troughs positioned there between.
Generally, the dunnage material 21 follows a material path A as shown in
As discussed above, any stock material may be used. For example, the stock material may have a basis weight of about at least 20 lbs., to about at most 100 lbs. The stock material 19 comprises paper stock stored in a high-density configuration having a first longitudinal end and a second longitudinal end that is later converted into a low-density configuration. The stock material 19 is a ribbon of sheet material that is stored in a fan-fold structure, as shown in
In various embodiments, the stock material units may include an attachment mechanism that may connect multiple units of stock material (e.g., to produce a continuous material feed from multiple discrete stock material units). Preferably, the adhesive portion facilitates daisy-chaining the rolls together to form a continuous stream of sheet material that can be fed into the converting station 70.
Generally, the stock material 19 may be provided as any suitable number of discrete stock material units. In some embodiments, two or more stock material units may be connected together to provide a continuous feed of material into the dunnage conversion machine that feeds through the connected units, sequentially or concurrently (i.e., in series or in parallel). Moreover, as described above, the stock material units may have any number of suitable sizes and configurations and may include any number of suitable sheet materials. Generally, the term “sheet material” refers to a material that is generally sheet-like and two-dimensional (e.g., where two dimensions of the material are substantially greater than the third dimension, such that the third dimension is negligible or de minimus in comparison to the other two dimensions). Moreover, the sheet material is generally flexible and foldable, such as the example materials described herein.
In some embodiments, the stock material units may have fanfold configurations. For example, a foldable material, such as paper, may be folded repeatedly to form a stack or a three-dimensional body. The term “three-dimensional body,” in contrast to the “two-dimensional” material, has three dimensions all of which are non-negligible. In an embodiment, a continuous sheet (e.g., sheet of paper, plastic, foil) may be folded at multiple fold lines that extend transversely to a longitudinal direction of the continuous sheet or transversely to the feed direction of the sheet. For example, folding a continuous sheet that has a substantially uniform width along transverse fold lines (e.g., fold lines oriented perpendicularly relative to the longitudinal direction) may form or define sheet sections that have approximately the same width. In an embodiment, the continuous sheet may be folded sequentially in opposite or alternating directions two produce an accordion-shaped continuous sheet. For example, folds may form or define sections along the continuous sheet, which may be substantially rectangular.
For example, sequentially folding the continuous sheet may produce an accordion-shaped continuous sheet with sheet sections that have approximately the same size and/or shape as one another. In some embodiments, multiple adjacent section that are defined by the fold lines may be generally rectangular and may have the same first dimension (e.g., corresponding to the width of the continuous sheet) and the same second dimension that is generally along longitudinal direction of the continuous sheet. For example, when the adjacent sections are contacting one another, the continuous sheet may be configured as a three-dimensional body or a stack (e.g., the accordion shape that is formed by the folds may be compressed, such that the continuous sheet forms a three-dimensional body or stack).
It should be appreciated that the fold lines may have any suitable orientation relative to one another as well as relative to the longitudinal and transverse directions of the continuous sheet. Moreover, the stock material unit may have transverse folds that are parallel one to another (e.g., compressing together the sections that are formed by the fold lines may form a three-dimensional body that is rectangular prismoid) and may also have one or more folds that are non-parallel relative to the transverse folds.
As shown in
Folding the continuous sheet at the transverse fold lines forms or defines generally rectangular sheet sections, such as sheet section 310. The rectangular sheet sections may stack together (e.g., by folding the continuous sheet in alternating directions) to form the three-dimensional body that has longitudinal, transverse, and vertical dimensions 301, 302, 303. Moreover, at least a portion of the continuous sheet may be folded about fold lines that are slanted relative to the transverse and/or longitudinal dimensions of the continuous sheet (e.g., non-parallel relative to the X-axis and Y-axis).
In the illustrated embodiment, a portion 320 of the continuous sheet and a portion 330 of the continuous sheet include one or more slanted folds. Moreover, in some embodiments, the portions 320 and/or 330 are larger than the sheet section 310 (e.g., perimeter of the sheet section 310 may be defined by the longitudinal and transverse dimensions 301, 302, and the perimeter of the portions 320 and/or 330 may be defined by the transverse dimension and by another dimension that is greater than the longitudinal dimension 301). Additionally or alternatively, in some embodiments, the portions 320 and 330 may be positioned on opposite sides of the three-dimensional body or may be separated from each other by a distance that is approximate the same as the vertical dimension 303 stock material unit 300 (e.g., the portions 320 and 330 may be at the opposing ends of the continuous sheet).
As shown in
As described above, the stock material from the stock material units may be fed through the intake 70 (
In an embodiment, as shown in
As mentioned above, forming the triangular section 328 may facilitate connecting together or daisy-chaining multiple stock material units. Moreover, the tapered end of the triangular section 328 may facilitate initiating entry of the stock material from the stock material unit 300 into the intake of the dunnage conversion machine. In the illustrated embodiment, the stock material unit 300 is formed from a single continuous sheet of material (e.g., as described above, by folding the continuous sheet at transverse fold lines in alternating directions). Hence, for example, the triangular section 328 formed from the sections 321 and 323 generally has two layers. It should be appreciated that the triangular section 328 may have any number of layers. For example, multiple continuous sheets (e.g., overlaying one another) may be folded together at transverse fold lines (e.g., in alternating directions), and each of the sections 321 and 323 may have multiple layers that, when folded over the opposing section of the portion 320 may form a triangular section 328 with more than two layers.
In the illustrated embodiment, the section 324 is smaller than the section 321. For example, a portion of the section 324 may overlay or overlap onto the section 321. Moreover, folding the section 324 at the fold line 323 may also fold a portion of the section 321 onto itself.
The tip of the triangular section 328 may include four layers (e.g., as compared to the portion of the triangular section 328 away from the tip and closer to the base of the triangular section 328 that has two layers). For example, additional layers at the tip of the triangular section 328 may reinforce the tip (e.g., to reduce the potential of breakage at the tip, when the tip of the triangular section 328 is attached to another stock material unit). Additionally or alternatively, the peak defined by the triangular section 328 may be generally aligned with a center of the transverse dimension of the stock material unit 300.
In some embodiments, the stock material unit 300 includes a splice member or one or more portions thereof, which may be used to connect the stock material unit 300 to another stock material unit. Moreover, the triangular section 328 of the stock material unit 300 may be further folded (e.g., to accommodate storage of the stock material unit 300 and/or attachment of the stock material unit 300 to another stock material unit).
For example, as shown in
In some embodiments, stock material unit 300 may include a splice member 400. For example, the splice member 400 may include a base 410 and an adhesive layer 420 positioned on the base 410. The adhesive layer 420 may attach the splice member 400 to the triangular section 328. Moreover, after attaching the splice member 400 to the triangular section 328, at least a portion of the adhesive layer may be exposed.
Furthermore, as shown in
As discussed below in more detail, the triangular section 329 may connect to another stock material unit, to daisy-chain the stock material unit 300 and another stock material unit (e.g., to form a continuous sheet from multiple sheets of two or more stock material units). A splice member or a portion thereof (e.g., a connector) may be secured to one or more portions of the stock material unit 300.
After the above-described folding, the splice member 400 may be adhesively attached to the triangular section 329. The splice member 400 may secure the triangular section 329 to another stock material unit. For example, the adhesive layer 420 may adhere to a sheet of another stock material unit. Including the splice member 400 together with the stock material unit 300 may facilitate attachment of the stock material unit 300 to another stock material unit (e.g., the splice member 400 may be readily available for attaching the triangular section 329 to another sheet material).
In an embodiment, the splice member 400 may include a removable cover 430 that may be removably attached to the adhesive layer 420 (e.g., as indicated with an arrow in
In some embodiments, the portion 330 that is near or defines the end of the continuous sheet (e.g., opposite to the triangular section 329 (
For example, folding the portion 330 in the manner illustrated in
As described above, the splice member 400 may be secured to a section of the stock material unit 300a.
Generally, the adhesive layer 420 may include any number of suitable adhesives that may secure the splice member 400 to the sheet of the stock material unit, as described above. For example, the adhesive layer 420 may include pressure-sensitive adhesive. The removable cover 430 may be removed from the splice member 400, thereby exposing the adhesive layer 420 under the removable cover 430. After removing the removable cover 430, the splice member 400 may be secured to the sheet of the stock material unit. Subsequently, the removable cover 430 may be replaced back onto the adhesive layer 420. Alternatively, a protective coating may be sprayed or otherwise coated onto the adhesive layer 420 to prevent unintentional adherence thereof (e.g., silicone may be sprayed onto the adhesive layer 420).
Moreover, while the splice member 400 is attached to the continuous sheet of a first stock material unit, the removable cover 430 may be again removed from the splice member 400 to expose the unattached portion of the adhesive layer 420 thereunder. For example, after removing the removable cover 430, the splice member 400 may be secured to a portion of a continuous sheet of a second stock material unit, thereby connecting together or daisy-chaining the first and second stock material units, as described below in more detail.
As mentioned above, the sections 335a of the stock material unit 300a and 329a′ of the stock material unit 300a′ may have generally triangular shapes. Moreover, because sections 335a and 329a′ may have multiple folds and may include multiple layers, these multiple folds can provide reinforcement to sections 335a and 329a′ to prevent or minimize tearing or failure of the connected sections (e.g., as the second stock material unit 300a′ is pulled into the intake 70 (
As described above, the dunnage conversion machine may include a supply station (e.g., supply station 13 (
Generally, the splice member may have any number of suitable configurations (e.g., configuration of the splice member may dependent on the configuration of the stock material units and/or folds thereof). In at least one embodiment, the splice member may include multiple adhesive surfaces that may facilitate securing the splice member to the stock material unit as well as securing together two stock material units.
As shown in
Moreover, the base 410a may include multiple layers. For example, the base 410a may include a base substrate 411a, a base adhesive layer 412a extending over at least a portion of a first side or face of the base substrate 411a, and a release layer 413a extending over at least a portion of a second, opposite side or face of the base substrate 411a. The connector 420a may include a connector substrate 421a and a connector adhesive layer 422a extending over at least a portion of a first side or face of the connector substrate 421a (e.g., second, opposite side of the connector substrate 421a may form or define an outer surface of the connector 420a).
As shown in
The base 410a may be secured to the sheet of the stock material unit. For example, the base adhesive 412a may be placed into contact with the sheet of the stock material unit, thereby securing the base 410a to the sheet. In some embodiments, the splice member 400a may be included with or attached to the stock material unit. For example, the base 410a may be attached to the sheet of the stock material unit, and the connector 420a or at least a portion thereof may be removed from the base 410a and/or from the sheet of the stock material unit, and may be used to connect the sheet of the stock material unit to the sheet of another stock material unit (e.g., as described below in more detail).
As mentioned above, the base 410a may be larger than the connector 420a. Moreover, the splice member 400a may have an asymmetrical shape. For example, the splice member 400a may have a shape that is asymmetric about a longitudinal and/or transverse axis thereof. Alternatively, as shown in
The splice member 400a may be at least partially defined by two opposing sides 401a, 402a. In the embodiment shown in
The splice member 400a also has nonlinear (e.g., generally curved) sides 403a, 404a that are generally opposite to each other and extend between the sides 401a and 402a. Collectively, the sides 401a-404a define the perimeter of the splice member 400a. For example, the sides 401a-404a may define a generally butterfly-shaped splice member 400a.
In the illustrated embodiment, the sides 403a and 404a curve in the manner that define corresponding depressions or indentations toward the center of the splice member 400a. For example, each of the sides 403a and 404a include an inwardly curving section (curing toward the center of the splice member 400a), a first slanted section extending outward from the inwardly curving section toward the side 401a, and a second slanted section extending outward from the inwardly curving section toward the side 402a. Moreover, first slanted sections that extend from each of the sides 403a and 404a and toward the side 401a may be oriented at acute angles relative thereto. Similarly, the second slanted sections that extend from each of the sides 403a and 404a and toward the side 402a may be oriented at acute angles relative thereto.
Each of the sides 403a and 404a may include a transverse, linear section that extends from the side 401a to the respective first slanted section. For example, the transverse, linear sections may be generally perpendicular to the side 401a and may extend therefrom to the end points of the first slanted sections that define portions of the sides 403a, 404a. In some embodiments, the splice member 400a may include fillets connecting respective second slanted sections of the sides 403a and 404a to the side 402a.
The base 410a and connector 420a may share and/or may be aligned along the side 402a. For examples, the base 410a and connector 420a may terminate at the side 402a. Moreover, as mentioned above, the base 410a may be larger than the connector 420a. For example, the periphery of the base 410a may be defined by the sides 401a-404a (e.g., the periphery of the base 410a may coincide with the periphery of the splice member 400a). In some embodiments, at least a portion of the periphery of the base 410a and a portion of the periphery of the connector 420a may coincide with the corresponding portions of the sides 403a and 404a. Moreover, for example, the periphery of the connector 420a may be defined by the side 402a, portions of the sides 403a, 404a, by a connector side 423a, and linear sections 424a, 425a extending from the connector side 423a and terminating at the sides 403a and 404a respectively.
For example, the connector side 423a may be offset from the side 401a of the splice member 400a, which defines the corresponding side of the base 410a. The connector side 423a may be generally parallel to the side 401a of the splice member 400a. For example, the offset between the connector side 423a and the side 401a may form a portion of the base 410a that is not in contact with the connector 420a and/or that forms the excess area of the base 410a (i.e., the portion by which the base 410a is larger than the connector 420a).
As described above, the stock material unit may include a continuous sheet that may be repeatedly folded to form or define a three-dimensional body or stack of the stock material unit.
As shown in
Moreover, a portion of the triangular section that is formed by the sections 312b and 314b about a transverse fold line 315b to form a smaller triangular section 316b. For example, the triangular section 316b may be folded over the sections 312b and 314b. Moreover, least a portion of the triangular section 316b may be attached to a portion of a sheet of another stock material unit. Hence, for example, additional layers of the continuous sheet at the portion of the triangular section 316b may reinforce the portion of the triangular section 316b that may attach to a portion of a sheet of another stock material unit.
Moreover, the triangular section 316b may be secured to the sections 312b and 314b (e.g., to facilitate storage and/or transportation of the stock material unit 300b). For example, the splice member 400a may secure the triangular section 316b to the sections 312b and 314b. As described above, the splice member 400a may have side 401a and side 402a that is shorted than the side 401a.
As shown in
Moreover, as shown in
The side 402a of the splice member 400a may be positioned near or adjacent to the fold line 317b of the stock material unit 300b. Additionally or alternatively, a center of the side 402a may coincide with a center line of the transverse dimension of the stock material unit 300b. For example, as shown in
The connector 420a of the splice member 400a may be attached to the section 318b of the stock material unit 300b (e.g., the adhesive layer of the connector 420a may be attached to the section 318b). For example, connector 420a may be spaced away from the fold line 317b.
In the illustrated embodiment, the connector 420a attaches the section 318 to the base 410a. Specifically, a portion of the connector 420a is attached to the section 318b (e.g., non-removably attached) and a portion of the connector 420a is attached to the base 410a. As mentioned above, the connector 420a may be removable attached to the base 410a. Hence, attaching the section 318a to the base 410a with the connector 420a may allow detachment of the connector 420a together with the section 318a from the base 410a (e.g., without damaging or deactivating the adhesive of the adhesive layer of the connector 420a). For example, the connector 420a may be positioned and oriented relative to the base 410a in a manner that the adhesive portions of the connector 420a are located within the base 410a and do not contact any portion of the continuous sheet of the stock material unit 300b. Hence, generally, the base 410a may be suitably sized to facilitate attachment of the connector 420a. For example, after attachment to the base 410a, edges of the connector 420a may be suitably spaced from the edges of the base 410a (e.g., to allow for ease of placing or attaching the connector 420a to the base 410a without unintentionally adhering the connector 420a to one or more portions of the base sheet).
The stock material unit 300b may include one or more straps that may secure the folded continuous sheet (e.g., to prevent unfolding or expansion and/or to maintain the three-dimensional shape thereof). For example, strap assemblies 500 may wrap around the three-dimensional body of the stock material unit 300b, thereby securing together the multiple layers or sections (e.g., formed by accordion-like folds). The strap assemblies 500 may facilitate storage and/or transfer of the stock material unit 300b (e.g., by maintaining the continuous sheet in the folded and/or compressed configuration).
For example, when the stock material unit 300b is stored and/or transported, wrapping the three-dimensional body of the stock material unit 300b and/or compressing together the layers or sections of the continuous sheet that defines the three-dimensional body may reduce the size thereof. Moreover, compressing together the sections of the continuous sheet may increase rigidity and/or stiffness of the three-dimensional body and/or may reduce or eliminate damaging the continuous sheet during storage and/or transportation of the stock material unit 300b.
Moreover, the strap assemblies 500 may facilitate the handling of the stock material unit 300b. For example, the strap assemblies 500 may include a wider portion 502 and a narrower portion 503. The narrower portion 503 may be suitably sized and/or shaped to facilitate gripping thereof by a user or operator. The wider portion 502 may facilitate securing and/or supporting the weight of the stock material unit 300b. For example, the weight of the stock material unit 300b may be distributed over one or more wider sections of the corresponding strap assemblies 500, which may reduce or avoid damaging and/or ripping the continuous sheet of the stock material unit 300b.
Generally, the strap assemblies 500 may be positioned at any number of suitable locations along the transverse dimension of the stock material unit 300b. In the illustrated embodiment, the strap assemblies 500 are positioned on opposite sides of the section 318b (i.e., the section 318b is positioned between two strap assemblies 500). For example, as shown in
In the illustrated embodiment, when the stock material unit 300b may be connected to another stock material unit (e.g., when the adhesive layer of the connector is exposed), the connecter may be connected to a downward-facing portion of the stock material unit. For example, as described above, connector 420a may be attached to the section 318b and may be exposed for connection when the non-adhesive side or portion of the connector 420a faces downward.
As shown in
In some embodiments, another stock material unit may be placed on top of the stock material unit 300b, such that the bottom section and/or portion of the continuous sheet thereof contacts the exposed portion(s) of the connector adhesive layer, thereby securing the continuous sheet of the stock material unit 300b to the continuous sheet of another stock material unit.
In the illustrated embodiment, portions 426a of the connector 420a protrude past the section 318b. For example, the portions 426a of the connector 420a may protrude outward on opposing sides of the section 318b. Moreover, in some embodiments, the protruding portions 426a may have generally triangular shapes.
As shown in
Under some operating conditions, the stock material unit 300b′ may be placed on top of the stock material unit 300b after folding a portion of the continuous sheet of the stock material unit 300b in the manner that exposes the connector adhesive layer of the connector that is attached to the stock material unit 300b. Hence, for example, placing the stock material unit 300b′ on top of the stock material unit 300b may contact the adhesive of the connector on the stock material unit 300b with a portion of the continuous sheet of the stock material unit 300b′, and thereby connect together the continuous sheets of the stock material unit 300b and stock material unit 300b′ (e.g., to facilitate continuous feed into the dunnage conversion machine). For example, the adhesive of the connector may be pressure sensitive-adhesive, and the pressure applied onto the connector by the portion of the continuous sheet of the stock material unit 300b′ (e.g., by the weight of the stock material unit 300b′).
Moreover, as mentioned above, the stock material unit 300b′ may be the same as the stock material unit 300b. For example, the stock material unit 300b′ may include a connector that may be oriented to have the adhesive thereof face upward or outward. Hence, an additional stock material unit may be placed on top of the stock material unit 300b′, such as to connect together the continuous sheet of the stock material unit 300b′ with the continuous sheet of another stock material unit. In such manner, any suitable number of stock material units may be connected together and/or daisy-chained to provide a continuous feed of stock material into the dunnage conversion machine.
In some embodiments, the stock material unit may be bent.
In some examples, the stock material unit 300c may be bent after placement into the supply station (e.g., the supply station may include a hump or a similar feature that may push a center of the stock material unit 300c outward or upward). Stacking or placing another, additional stock material unit on top of the bent stock material unit 300c may facilitate contacting the adhesive layer of the connector 420a with the continuous sheet of the additional stock material unit.
For example, the additional stock material unit may have a generally planar configuration or a generally planar bottom face (e.g., similar to or the same as the stock material unit 300b (
Referring back to
While the splice assemblies described herein may be used with stock material units that have a folded continuous sheet (e.g., fanfold material), it should be appreciated that the splice assemblies may be use with and/or included in stock material units that include one or more sheets of any number of suitable configurations or combinations. For example, as described above, stock material units may include a continuous sheet that is configured into a roll, may include multiple sheets that are stacked together and/or positioned near one another, etc.
As described above, the stack of fanfold material may be wrapped or bundled by one or more straps that may compress and/or secure together sections of the fanfold material (e.g., to securely form a three-dimensional body).
In some embodiments, the strap assembly 500 includes a base sheet 510, a reinforcement member 520, and an adhesive 530. As described below in more detail, the adhesive 530 may secure opposing ends of the strap assembly 500 to reconfigure the strap assembly 500 from the unwrapped into wrapped configuration. Furthermore, in at least one embodiment, the strap assembly 500 includes a laminate layer 540.
Generally the strap assembly 500 is relatively thin or sheet-like. For example, overall thickness of the strap assembly 500 may be from 0.001 inch to 0.050 inch. It should be appreciated, however, that the strap assembly 500 may be thinner than 0.001 inch or thicker than 0.050 inch.
Moreover, in the illustrated embodiment the strap assembly 500 has an elongated shape. For example, longitudinal dimension 501 of the strap assembly 500 may be greater than a transverse direction thereof (e.g., measured along a direction that is perpendicular to the longitudinal dimension). The longitudinal dimension 501 is suitable to facilitate wrapping the strap assembly 500 about a fanfold stack (e.g., as described above) or about any other material stack or roll and to secured the portion of the strap assembly 500 that includes the adhesive 530 to an opposing portion of the strap assembly 500.
The adhesive 530 is generally located at or near a first end of the strap assembly 500. The strap assembly 500 may be wrapped or looped, such that the first end of the strap assembly 500, which has the adhesive 530, is positioned over at least a portion of the second end of the strap assembly 500. Moreover, the adhesive 530 may secure together the first and second ends of the strap assembly 500, to suitably secure the material about which the strap assembly 500 is wrapped. For example, wrapping the strap assembly 500 may include adjusting the strap assembly 500 to a suitable size and/or to have a suitable tension against the three-dimensional body wrapped thereby (e.g., to suitably compress the three-dimensional body).
The transverse dimension of the strap assembly 500 may vary along the longitudinal direction of the strap assembly 500. For example, as shown in
In the illustrated embodiment, the second portion 503 is narrower than the first and third portions 502, 504 (e.g., the transverse dimension of the second portion 503 is smaller than transverse dimensions of the first and third portions 502, 504). For example, as a ratio of the width or transverse dimension of the first and/or third portions 502, 504, the width or transverse dimension of the second portion 503 may be in one or more of the following ranges (described as the ratio of the width of the second portion 503 to first/third portion 502/504): from 1:1.1 to 1:4, from 1:3 to 1:6, from 1:5 to 1:10. It should be appreciated that in other embodiments the ratio of the width or transverse direction of the second portion 503 to the width or transverse dimension of the first and/or third portions 502, 504 may be greater than 1:1.1 or less than 1:10 (i.e., the width of the second section may be wider than 91% of the width of the first or third portion 502, 504 or narrower than 10% of the width of the first or third portion 502, 504). For example, the width of the second portion 503 may be at least 50% smaller than the width of the first and/or third portions 502, 504.
In the illustrated embodiment, the second section 503 is sized to facilitate gripping or grasping by an operator. For example, as described below in more detail, when the strap assembly 500 is reconfigured into a wrapped configuration, the second section 503 may be suitably exposed or available to the operator, such that the operator may grasp the strap assembly 500 at the second section 503 (e.g., the second section may form or define a handle, when the strap assembly 500 is in the wrapped configuration).
The periphery or perimeter of the strap assembly 500 may be defined by the edges that define the first, second, and third portions 502, 503, and 504. In some embodiments, the strap assembly 500 includes fillets 505 that may define at least a portion of the transition between the first section 502 and the second section 503 and/or between the third section 504 and the second section 503. Hence, for example, the periphery of the strap assembly 500 may be also defined by the fillets 505.
Generally, the base sheet 510, reinforcement member 520, and laminate layer 540 of the strap assembly 500 may include any number of suitable materials. For example, the base sheet 510 may include a suitable sheet material, such as paper, plastic sheet, cardboard, etc. (e.g., the base sheet 510 may include Kraft paper). The reinforcement member 520 may include any number of suitable materials that may suitably reinforce the base sheet 510 to facilitate handling of the material secured or wrapped by the strap assembly 500 (e.g., by grasping the second section 503 when the strap assembly 500 is in the wrapped configuration). For example, the reinforcement member 520 may include a fiber reinforced tape or sheet (e.g., intertape polymer group fiber) that may be secured to the base sheet 510.
The reinforcement member 520 may be directly secured to the base sheet 510 (e.g., by adhering or bonding or mechanically securing the reinforcement member 520 directly to the base sheet 510). Alternatively, the reinforcement member 520 may be indirectly secured to the base sheet 510. For example, one or more intervening members may be secured between the reinforcement member 520 and the base sheet 510. Furthermore, the reinforcement member 520 may be substantially continuously and secured to the base sheet 510. For example, the suitable portion of the surface area of the reinforcement member 520 may be secured to the base sheet 510. Moreover, a suitable length of the reinforcement member 520 may be secured to the base sheet 510. In the illustrated embodiment, the laminate layer 540 is located between the base sheet 510 and the reinforcement member 520.
The laminate layer 540 may include any number of suitable materials that may be attached to the base sheet 510 (e.g., bonded or mechanically secured). For example, the laminate layer 540 may include a plastic sheet, such as a polyethylene laminate, and may have any suitable thickness (e.g., 1 mil, 1.7 mil, 2 mil). In some embodiments, the laminate layer 540 may be coated onto the base sheet 510 (e.g., sprayed, rolled).
The adhesive 530 may be any suitable adhesive (e.g., pressure sensitive adhesive). In some embodiments, adhesive 530 may be the coated onto the laminate layer 540 or base sheet 510. Alternatively, the laminate layer 540 may be included on a sheet that may be attached to the laminate layer 540 or base sheet 510. For example, the adhesive 530 may be included on a double-sided adhesive tape (e.g., 3M X-series general purpose double coated tape). In any event, for example, the adhesive 530 may secure the third portion 504 (a second end) to the first portion 502 (a first end), thereby reconfiguring the strap assembly 500 from the unwrapped configuration into the wrapped configuration.
The strap assembly 500 may be wrapped about a material stack that defines a three-dimensional body with a generally rectangular cross-section (e.g., the strap assembly 500 may at least partially conform to the outer shape of the material stack). For example, as shown in
In some embodiments, after the strap assemblies 500 are wrapped about the three-dimensional body of the stock material unit, the second portion 503 of each of the strap assemblies 500 (which is narrower than the remaining portions of the strap assemblies 500) may be accessible to a user or operator for grasping. For example, as shown in
The strap assemblies 500 may be spaced from each other along a traverse direction of the three-dimensional body of the stock material unit 300b. For example, the strap assemblies may be spaced from each other such that the center of gravity of the three-dimensional body is located between two strap assemblies 500. Optionally, the strap assemblies 500 may be equidistantly spaced from the center of gravity.
As described above, the stock material unit 300b may be placed into a dunnage conversion machine. Additionally or alternatively, multiple stock material units (e.g., similar to or the same as the stock material unit 300b) may be stacked on top of another in the dunnage conversion machine. The stock material unit may include one or more strap assemblies 500. For example, the strap assemblies 500 may remain wrapped about the three-dimensional bodies of the stock material units after placement and may be removed thereafter (e.g., the strap assemblies 500 may be cut at one or more suitable locations and pulled out).
Wrapping the three-dimensional body of the stock material unit 300b may involve positioning the three-dimensional body on one or more supports. As shown in
The narrower portion of the strap assembly may have any suitable length and/or may wrap about any portion of the stock material. As shown in
The portion 503c′ may extend along the front face of the three-dimensional body by any suitable distance. For example, the portion 503c′ may have a length in one or more of the following ranges: from 0.5 inch to 1.5 inch, from 1 inch to 2 inch, from 0.7 inch to 3 inches. The length of 503c′ portion may be outside for the above-described range. Moreover, the portion 503c′ may span a selected portion or percentage of the height of the front face of the three-dimensional body, which may be in one or more of the following ranges: from 5% to 15%, from 10% to 30%, from 25% to 50%. It should be appreciated that the length of the portion 503c′ may be outside of the above-described percentage ranges.
As shown in
While, as described above, in some embodiments three supports may be used to wrap the three-dimensional body with the strap assemblies 500, additional or alternative embodiments may include fewer or more supports. For example, the three-dimensional body may be supported by a single support (e.g., by the support 700a). In other embodiments, the three-dimensional body may be supported by two support (e.g., by support 700b and 700c).
Furthermore, it should be appreciated that, generally, the three-dimensional body of any of the stack material units described herein may be, stored, transported, used in a dunnage conversion machine, or combinations thereof without any wrapping (or strapping) or with a different strap or wrapping than the strap assembly 500 (
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