Corrugated cardboard is commonly used in the manufacture of shipping cartons with a wide variety of uses. In the manufacture of corrugated cartons, it is customary to determine the compression strength of the corrugated carton by edge crush testing of precision cut samples that are typically of square or rectangular dimensions. The square or rectangular samples are designed to be subjected to several different tests, including an edgewise compression test that should be performed precisely parallel to a direction of internal flutes of the samples or precisely normal to a flute direction. To be able to produce reproducible test results on similarly constructed corrugated samples, it is necessary that the square or rectangular samples be uniformly and precisely cut so that two of the sample edges are precisely parallel to the flutes, and the other two sample edges are precisely normal to the flutes.
The samples may be cut by hand, such as with a razor, knife, or saw, or may be formed with a die. However, such methods are unreliable since the cut, and the precision of the cut, varies with the manual skill of the cutter. If a resulting cut is not square (e.g., the edges are not parallel or the cut edge is beveled), it is difficult to conduct a reliable crush test.
Some corrugated sample cutters provide more precise cuts than the aforementioned methods. Such cutters may include a base plate and a pair of cutting blades that are slidably mounted to the base plate with a slide block and rail system for cutting movement in a direction parallel to a first guide rail. Second guide rails are spaced from each other by a predetermined distance to allow a sample to be simultaneously cut by the pair of cutting blades. After cutting the sample a first time, the sample may include first and second cut edges, and the sample may be rotated ninety degrees and positioned between the pair of second guide rails. The pair of cutting blades may be moved along a cutting path a second time to complete the cutting of the sample into a precise square.
However, such corrugated sample cutters only include a parallel, fixed-width pair of cutting blades that cannot be adjusted. Thus, such sample cutters can only form corrugated samples with the parallel, fixed widths. Furthermore, tools are required to remove the blades of such corrugated sample cutters, which is time consuming and cumbersome.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate one or more implementations and, together with the description, explain these implementations. In the drawings:
The following detailed description refers to the accompanying drawings. The same reference numbers in different drawings may identify the same or similar elements.
Systems and/or methods described herein may provide a corrugated sample cutter that may cut a variety of sample sizes for a variety of tests, such as edge crush tests, pin adhesion tests, etc. The corrugated sample cutter may include an adjustable width cutting assembly with two blades positioned inside the cutting assembly. One blade may be provided in a stationary portion of the cutting assembly and the other blade may be provided in a movable portion of the cutting assembly. A user of the corrugated sample cutter may quickly and easily adjust the width of the cutting assembly so that various widths may be obtained without any tools.
The stationary plate may not move in a direction perpendicular to the length of the slide rail. The stationary plate may connect to a blade or other cutting instrument that may be received in grooves of the base plate. The adjustable plate may move in a direction perpendicular to the length of the slide rail, and may slidably connect to the stationary plate. The adjustable plate may connect to another blade or other cutting instrument that may be received in grooves of the base plate. The adjustable plate may be adjustable in different dimensions (e.g., in inches, millimeters, etc.), and may enable the blades to provide adjustable cutting widths. The blades may be removed from the cutting assembly, without the need for mechanical tools, via thumbscrews.
In operation, the user of the sample cutter may set a sample size by adjusting the blade spacing of the cutting assembly. For example, the user may move the adjustable plate with respect to the stationary plate so that the blades are spaced apart for the desired sample size. The user may position the sample against the guide rails and the base plate of the sample cutter, and may move the cutting assembly through the sample to create a sample portion. For example, the user may move the cutting assembly along the length of the slide rail to cut the sample and create the sample portion.
The user may rotate the sample portion (e.g., ninety degrees), and may position the rotated sample portion against the guide rails and the base plate of the sample cutter. The user may again move the cutting assembly through the sample portion to create a final sample (e.g., with the desired sample size). For example, the user may move the cutting assembly along the length of the slide rail to cut the sample portion and create the final sample. The user may remove the final sample from the sample cutter, and may utilize the final sample in a variety of tests, such as, for example, an edge crush test.
Such an arrangement may provide a corrugated sample cutter with an adjustable width between cutting blades. The sample cutter may maintain and cut parallel sample edges at different widths, and the blades may provide clean and square cuts for the sample. The sample cutter may be portable, may not require pneumatic or electrical power, and may be used virtually anywhere. The arrangement may also enable the cutting blades to be replaced without the use of any tools.
Base plate 202 may include a plate to support the components of sample cutter 200. In some implementations, base plate 202 may have a variety of shapes and sizes depending upon the size and shape of a sample to be cut by sample cutter 200. For example, base plate 202 may be smaller in size if the sample is small (e.g., a one inch sample), and may be larger in size if the sample is large (e.g., a twelve inch sample). Base plate 202 may be made from a variety of materials, such as, for example, a metal or metal alloy (e.g., stainless steel, copper, iron, nickel, zinc, brass, bronze, aluminum, etc.), a plastic, a ceramic, a combination of the aforementioned materials, etc.
Carriage 204 may include a mechanism that connects to slide rail 206 in manner that carriage 204 may be moved linearly along a length of slide rail 206. For example, carriage 204 may communicate with a linear ball slide of slide rail 206 so that carriage 204 may move along the length of slide rail 206. Movement of carriage 204 may enable sample cutter 200 to cut a sample, as described herein. Carriage 204 may support and connect to stationary plate 210 and may prevent stationary plate 210 from moving in a direction perpendicular to slide rail 206. In some implementations, carriage 204 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, carriage 204 may be smaller in size if the sample is small, and may be larger in size if the sample is large.
Slide rail 206 may include a mechanism that enables carriage 204 to linearly move along a length of slide rail 206. For example, slide rail 206 may include a linear ball slide that communicates with carriage 204 so that carriage 204 may move along the length of slide rail 206. In some implementations, slide rail 206 may include different linear guides, such as a linear bushing on a precision rod, etc. Slide rail 206 may connect to a top surface of base plate 202, and may be provided near and extend along a side edge of base plate 202. In some implementations, slide rail 206 may have a variety of shapes and sizes depending upon the size and shape of base plate 202. Slide rail 206 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a ceramic, a combination of the aforementioned materials, etc.
Cutting assembly 208 may include an assembly that cuts a sample. As shown in
Stationary plate 210 may include a plate that is supported by and connected to carriage 204. Stationary plate 210 may not move in a direction perpendicular to the length of slide rail 206. Stationary plate 210 may be moved along the length of slide rail 206 via carriage 204. In some implementations, stationary plate 210 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, stationary plate 210 may be smaller in size if the sample is small, and may be larger in size if the sample is large. Stationary plate 210 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a ceramic, a combination of the aforementioned materials, etc.
Adjustable plate 212 may include a plate that is supported by and connected to linear slide assembly 246 (e.g., which connects to stationary plate 210). Adjustable plate 212 may move in a direction perpendicular to the length of slide rail 206, and may slidably connect to stationary plate 210 (e.g., via linear slide assembly 246). Adjustable plate 212 may be adjustable in different dimensions (e.g., in inches, millimeters, etc.), and may enable sample cutter 200 to provide adjustable cutting widths. In some implementations, adjustable plate 212 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, adjustable plate 212 may be smaller in size if the sample is small, and may be larger in size if the sample is large. Adjustable plate 212 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a ceramic, a combination of the aforementioned materials, etc.
First blade block cover 214 may include a cover to retain a first blade 220, or another cutting instrument, within first blade block 244. First blade block cover 214 and first blade block 244 may be sized and shaped to retain the first blade 220. Thumbscrew 252 may be used to retain first blade block cover 214 against first blade block 244. In some implementations, first blade block cover 214 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200.
Side guide rail 216 may include a guide rail that connects to the top surface of base plate 202. Side guide rail 216 may be provided near and extend along the side edge of base plate 202, adjacent to slide rail 206. Side guide rail 216 and top guide rail 232 (e.g., described below) may enable the sample to be positioned within sample cutter 200 for cutting. In some implementations, side guide rail 216 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, side guide rail 216 may be smaller in size if the sample is small, and may be larger in size if the sample is large. Side guide rail 216 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a ceramic, a combination of the aforementioned materials, etc. In some implementations, side guide rail 216 may be arranged perpendicular to top guide rail 232, described below.
Location knobs 218 may include mechanisms (e.g., locking pins) to lock adjustable plate 212 at a location with respect to stationary plate 210. Location knobs 218 may be provided through bushings 224 and may be received in openings provided in first guide plate 226 and second guide plate 228. A first location knob 218 may be associated with first guide plate 226, and a second location knob 218 may be associated with second guide plate 228. When location knobs 218 are removed from the openings of first guide plate 226 and second guide plate 228, adjustable plate 212 may be adjusted in a direction perpendicular to slide rail 206. After adjusting adjustable plate 212, one of location knobs 218 may be received in a corresponding opening of first guide plate 226 or second guide plate 228, depending on the unit of measure (e.g., inches, millimeters, etc.) selected by the user.
Blades 220 may include mechanisms capable of cutting a corrugated sample. In some implementations, blades 220 may include blades that may be used in a utility knife, razor blades, or other cutting mechanisms. Blades 220 may be provided in first blade block 244 and second blade block 242, as described below. Blades 220 may be spaced apart at different widths in a parallel relation, and may be arranged to cut a sample at the same time. In some implementations, parallelism and perpendicularity of a final sample may be set and maintained by blades 220. Blades 220 may cut the sample in a direction parallel to the flutes of the corrugation.
Anti-slip material 222 may include a material provided on a portion of the surface of base plate 202. Anti-slip material 222 may prevent a sample from slipping when the sample is cut by sample cutter 200. In some implementations, anti-slip material 222 may include a polymer material, a rubber material, a plastic material, abrasive material, adhesive material, etc.
Bushings 224 may include independent plain bearings that may be inserted into openings of adjustable plate 212 to provide a bearing surface for location knobs 218. In some implementations, bushings 224 may protect the openings of adjustable plate 212 from location knobs 218 provided through the openings.
First guide plate 226 may include a mechanism that enables adjustable plate 212 to be moved in a direction perpendicular to slide rail 206 and in relation to stationary plate 210. First guide plate 226 may connect to an upper surface of stationary plate 210, and may include one or more openings spaced apart at predetermined distances (e.g., in a first unit of measure, such as inches). The first location knob 218 may be associated with first guide plate 226. When the first location knob 218 is removed from the openings of first guide plate 226, adjustable plate 212 may be adjusted in a direction perpendicular to slide rail 206. After adjusting adjustable plate 212, the first location knob 218 may be received in a corresponding opening of first guide plate 226. In some implementations, first guide plate 226 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, first guide plate 226 may be smaller in size if the sample is small, and may be larger in size if the sample is large.
Second guide plate 228 may include a mechanism that enables adjustable plate 212 to be moved in a direction perpendicular to slide rail 206 and in relation to stationary plate 210. Second guide plate 228 may connect to an upper surface of stationary plate 210, and may include one or more openings spaced apart at predetermined distances (e.g., in a second unit of measure, such as millimeters). The second location knob 218 may be associated with second guide plate 228. When the second location knob 218 is removed from the openings of second guide plate 228, adjustable plate 212 may be adjusted in a direction perpendicular to slide rail 206. After adjusting adjustable plate 212, the second location knob 218 may be received in a corresponding opening of second guide plate 228. In some implementations, second guide plate 228 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, second guide plate 228 may be smaller in size if the sample is small, and may be larger in size if the sample is large.
In some implementations, first guide plate 226 and/or second guide plate 228 may be integrally formed with stationary plate 210. Such an arrangement may enable easier assembly of sample cutter 200, may reduce the number of components of sample cutter 200, may reduce a number of fasteners required for sample cutter 200, may make sample cutter 200 more accurate, etc.
Handle 230 may include a mechanism that enables a user of sample cutter 200 to move cutting assembly 208 along the length of slide rail 206. In some implementations, the user may grab handle 230 with a hand and may move cutting assembly 208 along the length of slide rail 206 in order to cut a sample. Handle 230 may also enable the user to move adjustable plate 212 in relation to stationary plate 210. Handle 230 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a ceramic, a combination of the aforementioned materials, etc.
Top guide rail 232 may include a guide rail that connects to the top surface of base plate 202. Top guide rail 232 may be provided near and extend along a top edge of base plate 202 (e.g., perpendicular to side guide rail 216). Side guide rail 216 and top guide rail 232 may enable the sample to be positioned within sample cutter 200 for cutting. In some implementations, top guide rail 232 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, top guide rail 232 may be smaller in size if the sample is small, and may be larger in size if the sample is large. Top guide rail 232 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a combination of the aforementioned materials, etc.
Second blade block cover 234 may include a cover to retain a second blade 220, or another cutting instrument, within second blade block 242. Second blade block cover 234 and second blade block 242 may be sized and shaped to retain the second blade 220. Thumbscrew 252 may be used to retain second blade block cover 234 against second blade block 242. In some implementations, second blade block cover 234 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200.
Grab catch block 236 may include a block that retains grab catch roller 238 and prevents carriage 204 (e.g., and cutting assembly 208) from moving past an end of slide rail 206. Grab catch block 236 may connect to the top surface of base plate 202, adjacent to the end of slide rail 206. In some implementations, grab catch block 236 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, grab catch block 236 may be smaller in size if the sample is small, and may be larger in size if the sample is large. Grab catch block 236 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a combination of the aforementioned materials, etc.
Grab catch roller 238 may include a friction catch for holding carriage 204 and preventing carriage 204 from moving. In some implementations, grab catch roller 238 may include two rollers arranged to receive grab catch clip 240 and prevent grab catch clip 240 from moving. Grab catch clip 240 may be received in grab catch roller 238 with the application of a force, and may be removed from grab catch roller 238 with the application of another force. Grab catch roller 238 may be connected to grab catch block 236 on a side of grab catch block 236 that faces carriage 204 and grab catch clip 240.
Grab catch clip 240 may include a clip that may be received and held in place by grab catch roller 238. In some implementations, grab catch clip 240 may be received and held in place by the two rollers of grab catch roller 238. Grab catch clip 240 may be connected to carriage 204 on a side of carriage 204 that faces grab catch block 236 and grab catch roller 238.
Second blade block 242 may include a block arranged to receive and retain the second blade 220. In some implementations, second blade block 242 may include a recessed portion sized and shaped to receive the size and shape of the second blade 220. Thumbscrew 252 may be used to retain second blade block cover 234 against second blade block 242. Second blade block 242 may connect to a lower surface of stationary plate 210. In some implementations, second blade block 242 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200.
First blade block 244 may include a block arranged to receive and retain the first blade 220. In some implementations, first blade block 244 may include a recessed portion sized and shaped to receive the size and shape of the first blade 220. Thumbscrew 252 may be used to retain first blade block cover 214 against first blade block 244. First blade block 244 may connect to a lower surface of adjustable plate 212. In some implementations, first blade block 244 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200.
Linear slide assembly 246 may include a carriage similar to carriage 204 and a slide rail similar to slide rail 206. The carriage and slide rail of linear slide assembly 246 may include the functionality and may operate in the manner described herein for carriage 204 and slide rail 206. The slide rail of linear slide assembly 246 may connect to an upper surface of stationary plate 210. The carriage of linear slide assembly 246 may connect to a lower surface of adjustable plate 212. The carriage may move along the length of the linear slide of linear slide assembly 246 to enable adjustable plate 212 to be moved in relation to stationary plate 210.
Rubber foot 248 may include a mechanism that supports base plate 202 and prevents base plate 202 from sliding on a surface on which sample cutter 200 is placed. In some implementations, rubber foot 248 may include a polymer material, a rubber material, a plastic material, etc. More than one rubber foot 248 may be connected to a bottom surface of base plate 202. For example, rubber foot 248 may be provided near each corner of the bottom surface of base plate 202.
Bumper 250 may include a mechanism that prevents carriage 204 (e.g., and cutting assembly 208) from moving past another end of slide rail 206 (e.g., the end of slide rail 206 that is opposite to the end adjacent to grab catch block 236). Bumper 250 may connect to the top surface of base plate 202, adjacent to the other end of slide rail 206. In some implementations, bumper 250 may have a variety of shapes and sizes depending upon the size and shape of the sample to be cut by sample cutter 200. For example, bumper 250 may be smaller in size if the sample is small, and may be larger in size if the sample is large. Bumper 250 may be made from a variety of materials, such as, for example, a metal or metal alloy, a plastic, a combination of the aforementioned materials, etc.
Thumb screws 252 may include mechanisms to retain first blade block cover 214 against first blade block 244, and second blade block cover 234 against second blade block 242. A first thumb screw 252 may be received in an opening of first blade block cover 214 and may force first blade block cover 214 against first blade block 244, to retain the first blade 202. A second thumb screw 252 may be received in an opening of second blade block cover 234 and may force second blade block cover 234 against second blade block 242, to retain the second blade 202.
Location scale 254 may be provided near an edge of base plate 202 and may be connected to a top surface of base plate 202. Location scale 254 may include scales of distances (e.g., in different units of measure) that may be used to set a distance between blades 220. The distance between blades 220 may be used to determine a size of the sample provided in sample cutter 200.
Caution label 256 may be attached to a top surface of base plate 202 and may provide warning information associated with operation of sample cutter 200. For example, the warning information may instruct a user of sample cutter to keep hands away from blades 220.
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In some implementations, the user may remove the second location knob 218 from an opening of second guide plate 228, and may move adjustable plate 212 in relation to stationary plate 210 until sample size 520 is set by the user. After sample size 520 is set, the second location knob 218 may be received in a corresponding opening of second guide plate 228.
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In example 500, assume that the user removes a cut portion of sample 530 and is left with a remaining portion 550 of sample 530, as shown in
In example 500, further assume that the user removes a cut portion of sample portion 550 from sample cutter 200, and removes a final, completed sample 580 from sample cutter 200, as shown in
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After removing first blade block cover 214, the first blade 220 may be accessible in first blade block 244, as shown in
After removing the first blade 220, the user may remove adjustable plate 212 from sample cutter 200 so that the user may access the second blade 220. For example, the user may lift location knobs 218 so that they are removed from the openings of first guide plate 226 and second guide plate 228. The user may remove adjustable plate 212 from linear slide assembly 246, as shown in
After removing second blade block cover 234, the second blade 220 may be accessible in second blade block 242, as shown in
The user may place a new blade 220 in second blade block 242, and the one or more magnets may retain the new blade 220 in second blade block 242. The user may replace second blade block cover 234 on second blade block 242, and may tighten the second thumb screw 252 so that second blade block cover 234 and second blade block 242 are connected. The user may then replace slide adjustable plate 212 on linear slide assembly 246. The user may place another new blade 220 in first blade block 244, and the one or more magnets may retain the new blade 220 in first blade block 244. The user may replace first blade block cover 214 on first blade block 244, and may tighten the first thumb screw 252 so that first blade block cover 214 and first blade block 244 are connected. After replacing blades 220, sample cutter 200 may be ready to use once again.
As indicated above,
Systems and/or methods described herein may provide a corrugated sample cutter that may cut a variety of sample sizes for a variety of tests, such as edge crush tests, pin adhesion tests, etc. The corrugated sample cutter may include an adjustable width cutting assembly with two blades positioned inside the cutting assembly. One blade may be provided in a stationary portion of the cutting assembly and the other blade may be provided in a movable portion of the cutting assembly. A user of the corrugated sample cutter may quickly and easily adjust the width of the cutting assembly so that various widths may be obtained without any mechanical tools.
The foregoing description of implementations provides illustration and description, but is not intended to be exhaustive or to limit the implementations to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of the implementations.
Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of the specification. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may directly depend on only one other claim, the disclosure of the specification includes each dependent claim in combination with every other claim in the claim set.
No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items, and may be used interchangeably with “one or more.” Where only one item is intended, the term “one” or similar language is used. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.
Number | Name | Date | Kind |
---|---|---|---|
782121 | Foreman | Feb 1905 | A |
1432072 | Lodge | Oct 1922 | A |
3130622 | Eno | Apr 1964 | A |
3496817 | Staats | Feb 1970 | A |
3779119 | Broides | Dec 1973 | A |
3791247 | Pretz | Feb 1974 | A |
3964360 | Schwartz | Jun 1976 | A |
4249437 | Hagenson | Feb 1981 | A |
4379419 | Woock | Apr 1983 | A |
5146823 | Holmes | Sep 1992 | A |
5303626 | Uehara | Apr 1994 | A |
5309642 | McGinnis | May 1994 | A |
5322001 | Boda | Jun 1994 | A |
5325752 | Bory | Jul 1994 | A |
5408909 | Suk | Apr 1995 | A |
5423238 | Bory | Jun 1995 | A |
5537904 | Albin | Jul 1996 | A |
7424780 | Cicchitti | Sep 2008 | B2 |
20020069736 | Yasoda | Jun 2002 | A1 |
Number | Date | Country |
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203031651 | Dec 2012 | CN |
Entry |
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Hardware House 64-4567 Contractor Pack Roller Catch, Brown, 10-Pack, date first available Mar. 1, 2010, Amazon.com, available at: http://www.amazon.com/Hardware-House-64-4567-Contractor-10-Pack/dp/B002BY9JT6/ref=sr—1—1?ie=UTF8&qid=1442684527&sr=8-1&keywords=hardware+house+64-4567. |
Kahn, Bill, Advanced Adhesives Report, Nov. 2010, avaialbe, on Apr. 13, 2016, at : http://harperlove.com/PDF/NewsNovember10.pdf. |