Chopping machine

Abstract

The chopper includes a chopper mechanism and a lubricant system. Each of the first plurality of peelers and the second plurality of peelers includes a first lubricant tubing opening and a second lubricant tubing opening formed therethrough. The first lubricant tubing opening and the second lubricant tubing opening are aligned with each other to form a first lubricant tubing passage and a second lubricant tubing passage through the first plurality of peelers and the second plurality of peelers. A lubricant delivery tube is in communication with the lubricant reservoir in a closed loop and is disposed through both the first lubricant tube passage and the second lubricant tube passage. The closed loop enables lubricant to flow from the lubricant reservoir through the lubricant delivery tubing and back to the lubricant reservoir. The lubricant delivery tubing may permeate liquid lubricant through surfaces thereof along portions disposed within the first and second lubricant tubing passages for delivering a portion of the liquid lubricant therethrough to lubricate the stripper and cutter blades.

Description

Background Technology

[0001] This application claims priority to U.S. Provisional Patent Application Serial No. 63 / 546,149, filed October 27, 2023, which is incorporated herein by reference in its entirety. Technical Field

[0002] This patent application relates to shredders, and particularly to lubricant systems configured for use in shredders to provide lubrication to the shredders, and shredder mechanisms configured to shred articles (e.g., at least paper).

[0003] Related technologies

[0004] A shredder is a well-known device used to destroy items such as paper, documents, optical discs (“CDs”), expired credit cards, etc. Typically, users purchase shredders to destroy items containing sensitive information, such as credit card statements with account information, documents containing company trade secrets, etc.

[0005] A shredder typically includes a shredder mechanism housed within a housing that is removably mounted on top of a container. The shredder mechanism typically includes a cutter mechanism with a series of cutting elements that shred the product fed into the shredder mechanism and discharge the shredded product downwards into the container. Examples of known shredders include U.S. Patent No. 9,724,704 entitled “shredder thickness with anti-jitter feature”; U.S. Patent Nos. 8,757,526 and 9,573,135 entitled “shredder with thickness detector”; U.S. Patent No. 7,798,435 entitled “shredder with oiling mechanism”; U.S. Patent No. 7,344,096 entitled “shredder with lock for on / off switch”; U.S. Patent No. 7,946,515 entitled “shredder throat safety system”; U.S. Patent No. 9,346,059 entitled “shredder with vibration performance sensor and control system”; U.S. Patent No. 8,882,011 entitled “cutting shaft oilmanifold”; and U.S. Patent No. 9,283,567 entitled “shredder with jam proof system”. These patents are jointly owned by the same assignee as this patent application. This patent application incorporates in its entirety each of these patents herein.

[0006] As with other machinery, proper lubrication of the moving parts in a shredder can reduce wear and maintain its performance. Specifically, oiling the cutter elements of the shredder mechanism reduces wear on the cutter elements / blades and lightens the load on the shredder motor. Oiling or applying lubricating pads is a convenient method for shredder maintenance. Before using these lubricating pads, manually oiling the paper feed throat of the shredder is the standard method for lubricating the shredder cutter mechanism. Some methods involve directly dripping oil / lubricant onto the shredder manually, while others involve applying oil to the paper and then shredding it in the shredder's cutter mechanism when the paper begins to saturate. Other methods of maintaining the shredder's cutter elements or mechanism with oil / lubricant include various automatic oiling systems.

[0007] U.S. Patent Application Publication No. 2010 / 0327092 (“Application '092”) discloses a shredder having a stripper in its shredder mechanism. Figure 5 The blade tip is shown resting precisely against the opposite stripper. Figure 5 The end of the slender paper limiter is shown, because the paper can only be displaced after the end / point of the paper limiter and within the lower segment surrounding the end / point of the paper limiter.

[0008] This patent application aims to provide various improvements to previously mentioned examples of the lubrication system of a shredder or the shredder mechanism of a shredder, as well as any similar examples that may not be mentioned or included. Summary of the Invention

[0009] In one embodiment of this patent application, the shredder includes a housing, a shredder mechanism, a motor, and a lubricant system. The shredder mechanism includes: a first rotatable shaft having a first plurality of cutter blades fixedly mounted thereon; a first plurality of peelers mounted adjacent to the first rotatable shaft, wherein each of the peelers is arranged between corresponding pairs of first cutter blades on the first rotatable shaft; a second rotatable shaft having a second plurality of cutter blades fixedly mounted thereon; and a second plurality of peelers mounted adjacent to the second rotatable shaft, wherein each of the peelers is arranged between corresponding pairs of second cutter blades on the second rotatable shaft. Each of the first plurality of peelers includes a through-formed first lubricant fitting opening. The first lubricant fitting openings are radially offset from the first plurality of peelers and aligned with each other to form a first lubricant fitting passage through the first plurality of peelers. Each of the second plurality of peelers includes a through-formed second lubricant fitting opening. The second lubricant fitting openings are radially offset from the second plurality of peelers and aligned with each other to form a second lubricant fitting passage through the second plurality of peelers. A first rotatable shaft and a second rotatable shaft are arranged parallel to each other, wherein the cutter blade on each rotatable shaft is axially staggered with the cutter blade on the other rotatable shaft. A motor is coupled to the shredder mechanism to rotate the rotatable shafts in opposite directions of rotation to shred the product between the first and second plurality of cutter blades. The lubricant system includes a lubricant reservoir, a lubricant delivery pipe, and a lubricant pump. The lubricant reservoir is configured to contain a supply of liquid lubricant. The lubricant delivery pipe communicates with the lubricant reservoir in a closed loop and is arranged through the first and second lubricant delivery pipe passages. The closed loop is configured such that lubricant can flow from the lubricant reservoir through the lubricant delivery pipe and back to the lubricant reservoir. The lubricant delivery pipe is configured to allow liquid lubricant to permeate through its surface along portions disposed within the first and second lubricant delivery pipe passages for conveying a portion of the liquid lubricant flowing therethrough to lubricate the stripper and cutter blades. The lubricant pump is configured to pump lubricant from the lubricant reservoir through the lubricant delivery fitting.

[0010] Implementations of the foregoing aspects may include one or more of the following features.

[0011] In one aspect, the lubricant delivery pipe may be a single lubricant delivery pipe arranged to pass through a first lubricant delivery passage in one direction and then back through a second lubricant delivery passage in the opposite direction, wherein a curved portion extends between the first and second lubricant delivery passages. The single lubricant delivery pipe may have its opposite ends connected to a lubricant reservoir to establish a closed loop.

[0012] In one aspect, the lubricant delivery fitting may have a plurality of perforations through its surface along portions provided within the first lubricant fitting passage and the second lubricant fitting passage to allow liquid lubricant to permeate.

[0013] In one aspect, perforation can be laser perforation.

[0014] In one aspect, the lubricant delivery fitting may include a first lubricant delivery pipe and a second lubricant delivery pipe. The first lubricant delivery pipe may be arranged to pass through a first lubricant fitting passage, and the second lubricant delivery pipe may be arranged to pass through a second lubricant fitting passage. Each of the lubricant delivery pipes may have its opposite ends connected to a lubricant reservoir to establish a closed loop.

[0015] In another embodiment of this patent application, a shredder is provided. The shredder is configured to shred at least paper. The shredder includes a housing, a shredder mechanism, a motor, and a lubrication system. The shredder mechanism includes: a first rotatable shaft having a first plurality of cutter blades fixedly mounted thereon; a first plurality of peelers mounted adjacent to the rotatable shaft, wherein each of the first plurality of peelers is arranged between corresponding pairs of first cutter blades on the first rotatable shaft; and a second rotatable shaft having a second plurality of cutter blades fixedly mounted thereon; and a second plurality of peelers mounted adjacent to the second rotatable shaft, wherein each of the second plurality of peelers is arranged between corresponding pairs of cutter blades on the second rotatable shaft. The first and second rotatable shafts are arranged parallel to each other, wherein the cutter blades on each rotatable shaft are axially staggered with the cutter blades of the other rotatable shaft. The motor is coupled to the shredder mechanism for rotating the rotatable shafts in opposite rotational directions to shred at least paper between the first plurality of cutter blades and the second plurality of cutter blades. The lubrication system includes a lubricant reservoir, one or more lubricant delivery conduits, and a lubricant pump. A lubricant reservoir is configured to contain a supply of liquid lubricant. One or more lubricant delivery conduits communicate with the lubricant reservoir for delivering a portion of the liquid lubricant flowing therethrough to lubricate the stripper and cutter blades. A lubricant pump is configured to pump lubricant from the lubricant reservoir through the one or more lubricant delivery conduits. The first plurality of strippers and the second plurality of strippers include strippers in which paper retention openings are formed. Each paper retention opening faces axially for capturing paper particles shredded between the first plurality of cutter blades and the second plurality of cutter blades, allowing the captured paper particles to collect lubricant therein.

[0016] Implementations of the foregoing aspects may include one or more of the following features.

[0017] In one aspect, each paper retention opening is at least partially aligned with one or more first or second blades such that at least one adjacent blade at least partially overlaps with the paper retention opening for contact with paper particles containing lubricant when the paper particles are trapped therein.

[0018] In one aspect, each paper retention opening may extend through the thickness of the stripper, and at least one adjacent blade that at least partially overlaps with the paper retention opening is a pair of adjacent blades that at least partially overlap with the paper retention opening on their opposite axial sides.

[0019] In one aspect, each paper retention opening may have a pair of adjacent blades that partially overlap with the paper retention opening on their opposing axial sides.

[0020] In one aspect, the first plurality of blades and the second plurality of blades are cross-cutting blades having circumferentially extending edges for longitudinally cutting paper and radially projecting cutting edges for transversely cutting paper.

[0021] In one aspect, each paper retention opening may have a pair of adjacent blades that partially overlap with the paper retention opening on its opposite axial side.

[0022] In one aspect, the first plurality of blades and the second plurality of blades are cross-cutting blades having circumferentially extending edges for longitudinally cutting paper and radially projecting cutting edges for transversely cutting paper.

[0023] In another embodiment of this patent application, a shredder is provided. The shredder is configured to shred at least paper. The shredder includes a housing; a shredder mechanism; and a motor. The shredder mechanism includes: a first rotatable shaft having a first plurality of cutter blades fixedly mounted thereon; a first plurality of peelers mounted adjacent to the first shaft, wherein each of the peelers is arranged between corresponding pairs of cutter blades on the first shaft; a second rotatable shaft having a second plurality of cutter blades fixedly mounted thereon; and a second plurality of peelers mounted adjacent to a second shaft, wherein each of the peelers is arranged between corresponding pairs of cutter blades on the second shaft. Each of the first plurality of peelers has a first anvil portion. Each of the second plurality of peelers has a second anvil portion. The first shaft and the second shaft are arranged parallel to each other, wherein the cutter blades on each shaft are axially staggered with the blades of the other shaft. A motor is coupled to the shredder mechanism to rotate the shaft in an opposite direction of rotation to shred at least paper between a first plurality of cutter blades and a second plurality of cutter blades. The first anvil portion of each of the first plurality of peelers is configured to laterally support at least paper as each of the second plurality of cutter blades penetrates at least paper. The second anvil portion of each of the second plurality of peelers can be configured to laterally support at least paper as each of the first plurality of cutter blades penetrates at least paper.

[0024] Implementations of the foregoing aspects may include one or more of the following features.

[0025] In one aspect, each of the first plurality of peelers may be configured to be stationary relative to a first rotatable axis. Each of the second plurality of peelers may be configured to be stationary relative to a second rotatable axis.

[0026] In one aspect, each of the first anvil portion and the second anvil portion may have a non-elongated forming configuration.

[0027] In one aspect, the first anvil portion may have a first protrusion that is angled or convex in shape, such that a second plurality of cutter blades adjacent to the first anvil portion are configured to pierce at least paper near the first protrusion. The second anvil portion has a second protrusion that is angled or convex in shape, such that a first plurality of cutter blades adjacent to the second anvil portion are configured to pierce at least paper near the second protrusion.

[0028] In one aspect, each of the first plurality of peelers may include a first paper restrictor portion and a first gap portion. The first gap portion may be positioned between the first paper restrictor portion and a first anvil portion. Each of the second plurality of peelers may include a second paper restrictor portion and a second gap portion. The second gap portion may be positioned between the second paper restrictor portion and the second anvil portion.

[0029] In one aspect, a first paper restrictor portion of one of the first plurality of peelers and a second paper restrictor portion of an adjacent peeler in the plurality of peelers can be configured to form a paper receiving opening. A first gap portion of one of the first plurality of peelers and a second gap portion of an adjacent peeler in the plurality of peelers are configured to form a gap space. The gap space can be configured to be wider than the paper receiving opening, and the gap space is configured to reduce at least paper jamming due to paper wrinkles or folds.

[0030] In one aspect, the first protrusion and the paper receiving opening are configured to generate tension on at least the paper when at least the paper passes through the first protrusion and the paper receiving opening. The second protrusion and the second paper restrictor portion are configured to generate tension on at least the paper when at least the paper passes through the second protrusion and the paper receiving opening.

[0031] In one aspect, the first protrusion and the first paper restrictor portion can be configured to generate tension on at least the paper when at least the paper passes through the first protrusion and the paper receiving opening. The second protrusion and the second paper restrictor portion can be configured to generate tension on at least the paper when at least the paper passes through the second protrusion and the paper receiving opening.

[0032] In one aspect, the paper receiving opening can be configured to limit the minimum amount or thickness of paper received by the shredder mechanism.

[0033] In one aspect, the gap space can have a substantially elliptical configuration.

[0034] These and other aspects of this patent application, as well as the methods of operation and function of the related elements of the structure and the economy of combination and manufacture of the parts, will become more apparent when considered in conjunction with the following description, all of which form part of this specification, wherein similar reference numerals in the various figures indicate corresponding parts. In one embodiment of this patent application, the structural components illustrated herein are drawn to scale. However, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to be limiting of the invention. It should also be appreciated that features of one embodiment disclosed herein can be used in other embodiments disclosed herein. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the context clearly specifies otherwise. Furthermore, as used in the specification and claims, unless the context clearly specifies otherwise, the term “or” means “and / or.” It should also be appreciated that some of the components and features discussed herein may be discussed in conjunction with only one such component (singular), and for the sake of redundancy, additional similar components that may be disclosed herein may not be discussed in detail.

[0035] Other aspects, features, and advantages of this patent application will become apparent from the following detailed description, drawings, and appended claims. Attached Figure Description

[0036] Referring to the accompanying schematic diagrams, various embodiments are disclosed by way of example only, in which corresponding reference numerals indicate corresponding parts, wherein

[0037] Figure 1 A partial exploded view of an exemplary shredder according to an embodiment of this patent application is shown;

[0038] Figure 2 The cabinet assembly, bin assembly, and door assembly of a shredder according to an embodiment of this patent application are shown;

[0039] Figure 3 A door assembly of a shredder according to an embodiment of this patent application is shown;

[0040] Figure 4 It shows Figure 3 The inner door panel and elastic strip of the door assembly;

[0041] Figure 5 A bin assembly of a shredder according to an embodiment of this patent application is shown;

[0042] Figure 6 A cabinet assembly of a shredder according to an embodiment of this patent application is shown;

[0043] Figure 7 A top housing assembly of a shredder according to an embodiment of this patent application is shown, including a CD flip-plate subassembly;

[0044] Figure 8 It shows Figure 7 The CD flip panel assembly of the top housing assembly;

[0045] Figure 9 An oil tank / storage assembly for a shredder according to an embodiment of this patent application is shown, including an oil cap assembly;

[0046] Figure 10 It shows Figure 9 The fuel tank assembly's fuel cap assembly;

[0047] Figure 11 The invention illustrates the cutting block assembly / shredder mechanism of a shredder according to an embodiment of this patent application and the assembly configuration of a motor assembly including a motor and a gearbox assembly;

[0048] Figure 12 It shows Figure 11 The partial disassembled configuration of the cutting block assembly and the motor assembly;

[0049] Figure 13 A partial exploded view of a shredder motor assembly according to an embodiment of this patent application is shown;

[0050] Figure 14 A partial exploded view of the cutting block assembly of a shredder having some portions of a motor assembly, according to an embodiment of this patent application, is shown.

[0051] Figure 15 A top front view of the cutting block assembly of a shredder having some portions of a motor assembly, according to an embodiment of this patent application, is shown.

[0052] Figure 16 A perspective view of a cutting block assembly of a shredder having some portions of a motor assembly, according to an embodiment of this patent application, is shown.

[0053] Figure 17 A front view of a cutting block assembly of a shredder having some portions of a motor assembly, and a cross-sectional view of the cutting block assembly having some portions of a motor assembly of a shredder taken along line AA, are shown according to an embodiment of this patent application.

[0054] Figure 18A front view of a cutting block assembly of a shredder having some parts of a motor assembly and detailed views of the various parts of the cutting block assembly of the shredder are shown according to an embodiment of this patent application.

[0055] Figure 19 An exploded view of the (left) support plate assembly of the cutting block assembly of a shredder according to an embodiment of this patent application is shown;

[0056] Figure 20 An assembly view of the (right) support plate assembly of the cutting block assembly of a shredder according to an embodiment of this patent application is shown;

[0057] Figure 21 A front view and a perspective view of the stripper of a shredder according to an embodiment of this patent application are shown;

[0058] Figure 22 The invention illustrates one of a first or second rotatable shaft according to an embodiment of the present patent application, and one or more cutter blades, one or more peelers, and one or more spacers mounted on the first or second rotatable shaft of a shredder.

[0059] Figure 23 The illustration shows another of the first or second rotatable shafts according to an embodiment of this patent application, and the first or second plurality of cutter blades, the first or second plurality of peelers, and the first or second plurality of spacers mounted on the first or second rotatable shaft of the shredder;

[0060] Figure 24 A cross-sectional view of the cutting block assembly of a shredder according to another embodiment of this patent application is shown;

[0061] Figure 25 A perspective view of a cutting block assembly of a shredder according to another embodiment of this patent application is shown, wherein some portions of the cutting block assembly are not shown in order to clearly show the other portions of the cutting block assembly;

[0062] Figure 26 The first and second rotatable shafts according to embodiments of this patent application are shown connected / coupled to a support plate assembly, wherein spacers stacked on the (left) rotatable shaft and cutter blades stacked on the (right) rotatable shaft are shown;

[0063] Figure 27 Two cutter blades and their indexing marks are shown according to an embodiment of this patent application, wherein when the two cutter blades are respectively mounted on the first and second rotatable shafts, the indexing features / marks of the (left and right) cutter blades are aligned as shown here;

[0064] Figure 28The first and second rotatable shafts according to an embodiment of this patent application are shown connected / attached to a support plate assembly, wherein the indexing mark of the (right) cutter blade is aligned with the indexing groove of the (right) rotatable shaft;

[0065] Figure 29 The first and second rotatable shafts according to an embodiment of this patent application are shown connected / coupled to a support plate assembly, wherein three layers are stacked on each of the first and second rotatable shafts (e.g., (1) a spacer, (2) a cutter blade, and (3) a spacer nested with a peeler stacked on the (left) rotatable shaft, and (1) a cutter blade, (2) a spacer nested with a peeler, and (3) a cutter blade stacked on the (right) rotatable shaft).

[0066] Figures 30 to 32 The illustration shows first and second rotatable shafts connected / coupled to a support plate assembly according to an embodiment of this patent application, wherein a multilayer peeler, spacers, and cutter blades are stacked on or are being stacked on the first and second rotatable shafts. Figure 32 The stacking order of the peeler, spacers, and cutter blades is also shown, and Figure 31 and Figure 32 The stripper shaft is also shown;

[0067] Figure 33 The first and second rotatable shafts according to an embodiment of this patent application are shown connected / coupled to a support plate assembly, wherein a peeler is omitted in the first layer (and last layer) being stacked on the first and second rotatable shafts (e.g., the first layer may include spacers stacked on the (left) rotatable shaft and cutter blades stacked on the (right) rotatable shaft).

[0068] Figure 34 The first and second rotatable shafts according to an embodiment of this patent application are shown connected / attached to a support plate assembly, wherein the tips of the cutter blades stacked on the (right) rotatable shaft point to the top of a peeler (not shown) stacked on the (left) rotatable shaft;

[0069] Figure 35 Another partial exploded view of the cutter block assembly of a shredder according to an embodiment of this patent application is shown;

[0070] Figure 36 A front view and a perspective view of the hopper assembly of a shredder according to an embodiment of this patent application are shown;

[0071] Figure 37 Another perspective view of the hopper assembly of the shredder according to an embodiment of this patent application is shown; and

[0072] Figure 38 A door assembly for a shredder (such as) according to an embodiment of this patent application is shown. Figures 2 to 4 The door interlock switch assembly shown in the figure. Detailed Implementation

[0073] Figure 1 A shredder 10 is shown, comprising a housing 12, a shredder mechanism 14, a motor 16, and a lubricant system 18. The shredder mechanism 14 includes: a first rotatable shaft 20 having a first plurality of cutter blades 22 fixedly mounted thereon; a first plurality of strippers 24 mounted adjacent to the first rotatable shaft 20, each of the strippers 24 being arranged between corresponding pairs of the first cutter blades 22 located on the first rotatable shaft 20; a second rotatable shaft 26 having a second plurality of cutter blades 28 fixedly mounted thereon; and a second plurality of strippers 30 mounted adjacent to the second rotatable shaft 26, each of the strippers 30 being arranged between corresponding pairs of the second cutter blades 28 located on the second rotatable shaft 26. Each of the first plurality of strippers 24 includes a through-formed first lubricant fitting opening 32. The first lubricant fitting openings 32 are radially offset from the first plurality of strippers 24 and aligned with each other to form a first lubricant fitting passage 34 through the first plurality of strippers 24. Each of the second plurality of strippers 30 includes a through-formed second lubricant fitting opening 36. The second lubricant fitting openings 34 are radially offset from the second plurality of strippers 30 and aligned with each other to form a second lubricant fitting passage 38 through the second plurality of strippers 30.

[0074] The first rotatable shaft 20 and the second rotatable shaft 26 are arranged parallel to each other, wherein the cutter blades 22, 28 on each rotatable shaft 20, 26 are axially intersected with the cutter blades 22, 28 on the other rotatable shaft 20, 26. A motor 16 is coupled to the shredder mechanism 14 to rotate the rotatable shafts 20, 26 in opposite directions of rotation to shred the product / paper between the first plurality of cutter blades 22 and the second plurality of cutter blades 28.

[0075] Lubricant system 18 includes a lubricant reservoir 40, a lubricant delivery conduit 42, and a lubricant pump 44. The lubricant reservoir 40 is configured to contain a supply of liquid lubricant. In the illustrated embodiment, the lubricant delivery conduit 42 communicates with the lubricant reservoir 40 in a closed loop and is arranged through a first lubricant conduit passage 34 and a second lubricant conduit passage 38. As discussed in detail below, the lubricant delivery conduit 42 may include a single lubricant loop (which originates at the lubricant reservoir 40, is arranged through both the first lubricant conduit passage 34 and the second lubricant conduit passage 38, and terminates at the lubricant reservoir 40), or may include two lubricant loops (each originating at the lubricant reservoir 40, arranged through one of the first lubricant conduit passage 34 and the second lubricant conduit passage 38, and terminates at the lubricant reservoir 40). Any number of lubricant loops may be used. The closed loop is configured such that lubricant can flow from the lubricant reservoir 40 through the lubricant delivery conduit 42 and back to the lubricant reservoir 40. Lubricant delivery fitting 42 is configured to allow liquid lubricant to permeate through its surface 46 along portions 56 provided within the first lubricant fitting passage 34 and the second lubricant fitting passage 38, for delivering a portion of the liquid lubricant flowing therethrough to lubricate the strippers 24, 30 and the cutter blades 22, 28. Lubricant pump 44 is configured to pass through lubricant delivery fitting 42 (or via...) Figure 14 The image shown and about Figure 14 One or more lubricant delivery conduits 421 and 422 described herein pump lubricant from lubricant reservoir 40.

[0076] Figure 2 The diagram illustrates a cabinet assembly 300, a bin assembly 600, and a door assembly 200 for a shredder 10. The shredder 10 may include a freestanding housing 12. The housing 12 may include the cabinet assembly 300, the door assembly 200, and other housing portions (e.g., a top housing assembly 800). The bin assembly 600 may be enclosed within the housing 12 (including the cabinet assembly 300 and the door assembly 200). The door assembly 200 of the shredder 10 (e.g., an access door) may be configured for accessing and removing the bin assembly 600 from the cabinet assembly 300.

[0077] refer to Figures 1 to 2 and Figure 6 The rack assembly 300 may include a bottom wall 304 and four side walls 306 to define the upper storage space SS. CU SS storage space CL and extending through the upper storage space SS CU and the lower storage space SS CL Both are UFOs with upward-facing openings. CThe rack assembly 300 can be made of plastic or any other material. The rack assembly 300 may also include a wall portion 310 configured to store the upper storage space SS of the rack assembly 300. CU and the lower storage space SS CL Partially separated. Wall portion 310 can be configured to support portions of the shredder mechanism 14 thereon. One of the side walls 306F may include an access opening 308 configured to allow the bin assembly 600 to be received in the lower storage space SS. CL The bottom wall 304 can be configured to support the bin assembly 600 thereon. The shredder mechanism 14 can be received in the upper storage space SS. CU In the middle. Shredded material from the shredder mechanism 14 can pass through the upward-facing opening UFO. C Enter settings in the lower storage space SS CL The 600-cell storage unit is located within the storage space SS. CU The walls of the cabinet assembly 300 may include one or more vents 312 configured to release hot air from the motor assembly MA and the shredder mechanism 14. The vents 312 may be used in conjunction with the shredder mechanism 14 and the motor assembly MA.

[0078] refer to Figure 6 The rack assembly 300 may include a bay guide rail 314 disposed on a side wall 306S. The bay assembly 600 may be mounted on the bay guide rail 314. The bay guide rail 314 may be a sliding guide rail ( Figure 6 Two slide rails are shown, for example, a left sliding rail and a right sliding rail), allowing the rack assembly 600 to slide or move together with the rack rails 314. The side wall 306F and wall portion 310 can be integrally formed and can be referred to as a top shelf. The rack assembly 300 may include two support channels 316 ( Figure 6 Two are shown (e.g., left support channel and right support channel), and the two support channels are configured such that when the shredder mechanism 14 is set in the upper storage space SS CU The middle support shredder mechanism 14.

[0079] like Figures 1 to 2As shown, the shredder 10 can be transported from one location to another by simply rolling the housing 12 on roller members 302, such as wheels or casters. The housing 12 may include two pairs of roller members 302 attached to the bottom of the cabinet assembly 300 to support the housing 12. The roller members 302 may be located on the cabinet assembly 300, as close as possible to the bottom corner. The roller members 302 may be locked by locking members to prevent rolling movement, providing a stationary configuration. The front pair of roller members 302 may be in the form of casters providing rotational capability to the housing 12, while the rear pair of roller members 302 may be in the form of wheels fixed in direction so that rolling is only allowed in the intended direction of travel. Both the front and rear pairs of roller members 302 may be in the form of casters.

[0080] refer to Figure 6 The cabinet assembly 300 may also include two wheel / caster support channels 318 connected to the bottom / lower surface of the bottom wall 304, one in the rear portion of the bottom wall 304 and the other in the front portion of the bottom wall 304. The wheel / caster support channels 318 may be configured to support roller members 302.

[0081] like Figure 6 As shown, the cabinet assembly 300 may also include a hinge assembly 320, which is connected to the side wall 306. S1 The front edge FE. The hinge assembly 320 can be configured to connect the door assembly 200 to the cabinet assembly 300.

[0082] The door assembly 200 can be configured to pivotally move relative to the rack assembly 300 between an open position and a closed position. In the open position, it provides access to and removal of the rack assembly 600 from the rack assembly 300. In the closed position, the access opening 308 of the rack assembly 300 is covered.

[0083] refer to Figure 2 The shredder 10 may include a paper deflector (or deflector) 322. The deflector or paper deflector 322 may include a paper deflecting surface disposed above the shredder mechanism 14, configured to deflect and guide paper / articles gripped and fed by a (movable) feed mechanism into the shredder mechanism 14. The deflector 322 may be designed such that it is positioned at least partially around or at least adjacent to the feed mechanism in the shredder 10, while still providing clearance for its rotation. The deflector 322 may be used to ensure the orientation and feeding of the pick-up or separation of articles or paper into the cutter blades 22, 28 of the shredder mechanism 14.

[0084] Figure 3 The door assembly 200 of the shredder 10 is shown, and Figure 4 The inner door panel / component 204 of the door assembly 200 is shown.

[0085] refer to Figures 1 to 4 The door assembly 200 can be configured to allow entry into or cover the access opening 308 of the rack assembly 300. The hinge 320 can be configured to pivotally connect the door assembly 200 to the rack assembly 300 to move between a closed position and an open position. In the open position, the door assembly 200 can be perpendicular to the side wall 306 of the rack assembly 200. F Positioned to provide access to the cabinet assembly 300 through an access opening 308 (e.g., for removing the bay assembly 600 from the cabinet assembly 300). In the closed position, the door assembly 200 is parallel to the side wall 306 of the cabinet assembly 200. F Positioning allows door assembly 200 to form a security barrier, preventing unauthorized access to the lower internal storage space SS of cabinet assembly 300. CL The warehouse component 600 is located in the lower internal storage space SS. CL middle.

[0086] Door assembly 200 may include an outer door panel / component 202, an inner door component 204, multiple door magnets 208, and multiple resilient components / bands 206. Door assembly 200 may be made of plastic or any other material. The configuration of the inner and outer door panels can provide a more refined appearance for door assembly 200. The inner door panel 204 may be configured to add additional structural elements to door assembly 200. The inner door panel 204 may be configured to allow storage of operating instructions, additional oil bottles to be added to a reservoir, etc.

[0087] Multiple door magnets 208 may be positioned on surface 210 of inner door member 204 and may be configured to lock door assembly 200 to cabinet assembly 300 when door assembly 200 is in the closed position. The multiple door magnets 208 may be positioned along edge portions 212 of inner door member 204 (in the upper and lower portions). Door assembly 200 may also include an additional lock. Multiple resilient members / bands 206 may be positioned / set on surface 210 of inner door member 204.

[0088] The outer door component 202 and the inner door component 204 may have aligned handle portions 216, 218, which together form an integral door handle 214. The integral door handle 214 may be located on the top right corner portion of the door assembly 200 and may be configured to facilitate opening the door assembly 200 from its closed position to its open position.

[0089] refer to Figure 1 and Figure 38The shredder 10 may include a door interlock switch assembly 700. The door interlock switch assembly 700 may be connected / coupled to various parts of the housing 12 / cabinet assembly 300 and / or door assembly 200. The door interlock switch assembly 700 may include a door interlock switch 702, a door interlock switch magnet 704, and a door switch cover 706. The door interlock switch assembly 700 may be configured to detect whether the door assembly 200 is closed and / or locked during operation of the shredder 10. Signals from the door interlock switch may be sent to a controller C, which may be configured to control the motor 16 based on the received signals. For example, when a signal from the door interlock switch assembly 700 (sent to the controller C) indicates that the door assembly 200 is not closed and / or unlocked, the controller C may be configured to stop the operation of the motor 16. In other words, when the door interlock switch assembly 700 detects that the door assembly 200 has been opened during the operation of the shredder 10, the operation of the shredder mechanism 14 of the shredder 10 is immediately stopped (e.g., by cutting off / stopping the power supply to the motor 16). The controller C can be configured to illuminate the door open icon on the control panel when the door is opened.

[0090] like Figures 1 to 2 and Figure 5 As shown, the bin assembly 600 can be housed within the cabinet assembly 300. The bin assembly 600 can be enclosed within the housing 12. The bin assembly 600 can be surrounded by the cabinet assembly 300 and the door assembly 200 on its bottom and sides. When the shredder mechanism 14 is positioned on the upper portion of the cabinet assembly 300 and above the bin assembly 600, the shredder mechanism 14 can be designed for use with the housing 12, which includes the cabinet assembly 300 and the bin assembly 600. That is, the bin assembly 600 can be positioned below the shredder mechanism 14. The bin assembly 600 can be configured to receive shredded documents from the shredder mechanism 14. The bin assembly 600 can be configured to be manually removed from below the shredder mechanism 14 and from the cabinet assembly 300 using handles 610, 612 to empty the shredded documents from the bin assembly 600.

[0091] The bin assembly 600 may include two bins 602 and 604. Due to the large weight of the waste particles, two waste bins 602 and 604 can be used. The number of bins can vary. The bin assembly 600 may include one bin or four bins. Figure 5One of two compartments 602, 604 of a compartment assembly 600 is shown. Each compartment 602, 604 includes a compartment insert 606, a box / container 608, and at least two compartment handles 610, 612. Container 608 may include a base container BC having a storage space SS and defining an upward-facing opening UFO for access to the storage space SS. Container 608 may include a bottom wall BW and side walls SW (e.g., four side walls) defining the storage space SS. Container 608 may include an opening 614 in the side wall SW. Opening 614 may be configured to align with an opening 616 of the compartment insert 606. The aligned openings 614, 616 of container 608 and compartment insert 606 may be configured to receive portions of handles 610, 612. Compartment insert 606 may include a bottom wall BW1 and side walls SW1 (e.g., two side walls). Compartment insert 606 may be configured to be received within the storage space SS of container 608. The bin insert 606 can be configured to reinforce the side walls SW and bottom walls BW of the container 608. After the bin insert 606 is inserted into the container 608, the upward-facing opening UFO of the container 608 can be configured to receive shredded materials from the shredder mechanism 14 into the storage space SS of the container 608. That is, the upward-facing opening UFO of the container 608 can be configured to allow the shredder mechanism 14 to discharge shredded materials into the container 608 through the upward-facing opening UFO. As noted above, handles 610, 612 facilitate emptying the shredded materials from the bin assembly 600. The bin insert 606 and the container 608 can be made of corrugated material. The bin insert 606 and the container 608 can be made of molded plastic or any other material.

[0092] The shredder 10 may include a sensor configured to detect, before starting / initiating operation of the shredder 10, whether the bin assembly 600 is not received in the cabinet assembly 300 and whether it is not correctly / properly positioned in the cabinet assembly 300. The sensor may be disposed on portions of the housing 12 / cabinet assembly 300 and / or the bin assembly 600. Signals from the sensor may be configured to be sent to a controller C, which may in turn be configured to control the motor 16 based on the received signals. For example, when a signal from the sensor (sent to the controller C) indicates that the bin assembly 600 is not received in the cabinet assembly 300 and / or is not correctly / properly positioned in the cabinet assembly 300, the controller C may be configured to stop supplying power to the motor 16. The controller C may also be configured to provide the user with an indication of the missing bin assembly 600 and / or improper placement of the bin assembly 600 in the cabinet assembly 300.

[0093] refer to Figure 1 and 7 to Figure 8The housing 12 may also include a top housing assembly 800. The top housing assembly 800 may be made of plastic or any other material.

[0094] refer to Figure 7 The top housing assembly 800 may include a top throat insert 802, a wiring assembly 804, an insert 806, a CD flip assembly 808, a control panel 810, a display panel 812, a control panel printed circuit board (PCB) 814 (e.g., the control panel PCB 814 may be part of the controller C), a top cover 816, a pair of automatic start sensors 818, and a bracket 820. The top housing assembly 800 may also include a lens insert 822 for the JPS, a lens insert 824 for the icon, a lens insert 826 for the power supply, a JPS wiring assembly 830, a support cap 832 for the control panel PCB 814, and double-sided tape 828 for the control panel PCB 814. When the pump is active, the shredder may include a low oil indicator (e.g., an LED) and an oil level indicator. The wiring assembly 804 is for a safety sensing antenna.

[0095] refer to Figure 7 and Figure 8 The CD flip panel assembly 808 may include a CD flip panel insert 834 and a wire cover 836.

[0096] The top wall of housing 12 may have a generally laterally extending opening that extends generally parallel to and above the cutter elements / blades 22, 28. This opening, often referred to as a throat, allows the shredded material / paper to be fed into the cutter elements / blades 22, 28. As will be appreciated, the opening may be relatively narrow, which is desirable to prevent excessively thick items (such as large stacks of documents) from being fed into the cutter elements / blades 22, 28, which could cause jamming. The opening can have any configuration. The top wall of housing 12 may be molded from plastic. The shredder housing 12 and its top wall can have any suitable construction or configuration.

[0097] The shredder 10 can have any suitable construction or configuration, and the illustrated embodiments are not intended to be limiting in any way. Furthermore, the term "shredder" is not intended to be limited to devices that literally "shred" documents and articles, but is intended to encompass any device that destroys documents and articles in a manner that renders each document or article unrecognizable and / or useless.

[0098] Figure 11 The assembly configuration of the cutter block assembly CBA and the motor assembly MA of the shredder 10 is shown, while Figure 12 The partial exploded configuration of the cutter block assembly CBA and the motor assembly MA is shown. Figure 13A partial exploded view of the motor assembly MA of the shredder 10 is shown. Figure 14 and Figure 35 A partial exploded view of some parts of the cutter block assembly CBA and motor assembly MA of the shredder 10 is shown.

[0099] refer to Figures 11 to 14 The motor assembly MA may include a top housing bracket 502, a motor 16, a printed circuit board assembly (PCBA) 504 (e.g., part of the controller C), ball bearings 508 (e.g., four ball bearings, each 20×4×14 in size), ball bearings 512 (e.g., one ball bearing, 10×26×8 in size), a gear assembly 506, a second-stage gear assembly 514, a gear cover 510, a motor fan 516, a fan shroud 518, a roller chain assembly 520, a small sprocket 522, a larger sprocket 524, a synchronizing gear 526, a side-mounted external retaining ring 528, a retaining clip 530, and a spiral retaining ring 538.

[0100] The top housing support bracket 502 can be configured to connect / couple the motor 16 to / from the housing 12. The transmission 500 (also referred to as a gearbox) can be configured to use gears 506, 514 to change the rotational speed or direction in the shredder 10. The gearbox assembly / transmission 500 may include gear assembly 506, second-stage gear assembly 514, ball bearings 508 and 512. Gear assembly 506, second-stage gear assembly 514, ball bearings 508 and 512 are all enclosed between a gear cover 510 on one side 534 of the motor 16 and a gear housing portion 532. The motor 16 can be a 120-volt (V) and 60-hertz (Hz) motor. The motor 16 can be a bidirectional electric motor configured to alternately rotate the rotating shaft 20 or 26 in a first and second rotational direction in response to a controller C. Motor 16 can be coupled to shredder mechanism 14 to rotate shafts 20, 26 in opposite directions of rotation to shred at least paper between first cutter blade 22 and a plurality of cutter blades 28.

[0101] The motor fan 516 can be fixed to and rotated by the shaft of the motor 16. The motor fan (or external fan) can be configured to be housed in a fan shroud 518, which is mounted to the (rearward) end 536 of the motor 16. A retaining clip 530 can be configured to hold the motor fan 516 on the shaft of the motor 16. The motor 16 and the transmission 500 can be referred to as a drive system. The drive system can have any number of motors and can include one or more transmissions.

[0102] The roller chain / track assembly 520 may include sixty-six links. The sprockets are interchangeably referred to as sprocket-wheels, and the roller chain is interchangeably referred to as a track. The smaller sprocket 522 may be a 9T sprocket. The larger sprocket 524 may be a 45T sprocket. A side-mounted external retaining ring 528 may be configured to retain the smaller sprocket 522 at the output end of the drive unit 500 and at one end of the roller chain 520. A helical retaining ring 538 may be configured to retain the larger sprocket 524 at the other end of the roller chain 520. The side-mounted external retaining ring 528 may be configured for shafts with a 0.5-inch outer diameter. The helical retaining ring 538 may be configured for shafts with a 35-mm outer diameter. The details regarding the connection of the output / shaft of motor 16 to the input of gears 506, 514, and the connection of the output of gears 506, 514 to rotatable shafts 20, 26 via roller chain assembly 520, small sprocket 522, large sprocket 524 and synchronizing gear 526 are well known and will not be described in detail here.

[0103] The shredder 10 includes a shredder mechanism 14, which includes an electric motor 16 and a plurality of cutter elements / blades 22, 28. "Shredder mechanism" is a general structural term used to describe a device that uses at least one cutter blade 22, 28 to break up a workpiece. This breaking can be performed in any particular manner. For example, the shredder mechanism 14 may include at least one cutter blade 22, 28 configured to punch a plurality of holes in a document, paper, or workpiece in a manner that breaks up the document, paper, or workpiece. The cutter blades 22, 28 may generally be mounted on a pair of parallel rotating / rotatable shafts 20, 26. The motor 16 may be configured to use electricity (e.g., from a source such as...). Figure 1 The power cord PC shown is used for operation via a conventional transmission device 500 (e.g., in...). Figures 11 to 14 An exemplary drive mechanism 14 is shown and described in detail (such as the drive mechanism 14) rotatably drives shafts 20, 26 and cutter blades 22, 28, such that the cutter blades 22, 28 shred the articles fed therein. The shredder mechanism 14 may also include a subframe for mounting the rotatable shafts 20, 26, motor 16, and drive mechanism 500. The operation and construction of such a shredder mechanism 14 are well known and need not be described in detail here, except for the differences noted below. In general, any suitable shredder mechanism 14 known in the art or developed thereafter can be used.

[0104] The shredder mechanism 14 is interchangeably referred to as a cutter block or cutter block assembly. The shredder mechanism 14 may include: a first rotatable shaft 20; a second rotatable shaft 26; a first plurality of cutter blades 22 fixedly mounted on the first rotatable shaft 20; a second plurality of cutter blades 28 fixedly mounted on the second rotatable shaft 26; a first plurality of peelers 24 mounted adjacent to the first rotatable shaft 20, wherein each of the peelers 24 is arranged between corresponding pairs of cutter blades 22 located on the first rotatable shaft 20; and a second plurality of peelers 30 mounted adjacent to the second rotatable shaft 26, wherein each of the peelers 30 is arranged between corresponding pairs of cutter blades 28 located on the second rotatable shaft 26. The first rotatable shaft 20 and the second rotatable shaft 26 may be arranged parallel to each other, wherein the cutter blades 22, 28 on each rotatable shaft 20, 26 are axially staggered with the cutter blades 22, 28 of the other rotatable shaft.

[0105] Rotatable shafts 20 and 26 can be made of steel. Rotatable shafts 20 and 26 can be made of metal or metal alloy. Rotatable shafts 20 and 26 may have a triangular configuration (with rounded corners) on their outer periphery / circumference. The forming configurations of rotatable shafts 20 and 26 can be different. Figure 26 and Figure 28 The first rotatable shaft 20 and the second rotatable shaft 26 are shown connected / coupled to the support plate assembly 112, wherein the spacer 106 stacked on the (left) rotatable shaft 26 and the cutter blade 22 stacked on the (right) rotatable shaft 20 are... Figure 26 As shown in, and in which Figure 28 In the center, the indexing mark 158 of the (right) cutter blade 22 is aligned with the indexing groove 174 of the (right) rotatable shaft 26. (Reference) Figure 26 and Figure 28 Each of the rotatable shafts 20, 26 may have indexing grooves 174, 176, which are configured to align with the indexing features 158, 160 of the cutter blades 22, 28.

[0106] Cutter blades 22 and 28 can be made of steel. Cutter blades 22 and 28 can also be made of metal or metal alloy. (Reference) Figure 27 Each cutter blade 22, 28 may include indexing features / markers 158, 160. Indexing features 158, 160 may be in the shape of a semi-arrowhead. For example... Figure 27 As shown, when the cutter blades 22 and 28 are stacked on their respective rotatable axes 20 and 26, the half-arrows can point inward. (Reference) Figure 26 and Figure 28The indexing feature 158 on the cutter blade 22 can be configured to align with the indexing groove 174 of the rotatable shaft 20 when the cutter blades 22, 28 are stacked on the rotatable shaft 20. The indexing features 158, 160 of the cutter blades 22, 28 can be positioned on top of the respective rotatable shafts 20, 26. The indexing features can also be interchangeably referred to as "keying".

[0107] Each cutter blade 22, 28 may include a triangular configuration (with rounded corners) at its inner periphery / circumference to conform to the shape and configuration of the outer periphery / circumference of the corresponding rotatable shaft 20, 26 on which the cutter blade 22, 28 is mounted. For example, each cutter blade 22, 28 may include three generally flat sides 162, 164, and 166 and three generally rounded corners 168, 170, and 172 connecting the sides 162, 164, and 166. In the illustrated embodiment, indexing features 158, 160 of the cutter blades 22, 28 may be provided on the side 162. The forming configuration of the inner periphery of the cutter blades 22, 28 may differ.

[0108] refer to Figure 18 , Figure 24 and Figure 27 The cutter blades 22 and 28 are cross-cutting blades having a circumferentially extending edge 126 for longitudinal cutting of paper and a radially projecting cutting edge 132 for transverse cutting of paper. Cross-cutting blades can be used because the shredded particles are smaller and more easily enter the paper retention openings 128 and 130 on the peelers 24 and 30 (as will be described in detail in the discussion below). The outer periphery of the cutter blades 22 and 28 comprises the cross-cutting blade shape and configuration. The cutter blades 22 and 28 may be slightly thinner than the spacers (or cutter spacers) 102 and 106.

[0109] The shredder mechanism 14 may also include a first plurality of spacers 102 and a second plurality of spacers 106. Spacers 102 and 106 may be made of steel. Spacers 102 and 106 may be made of metal or a metal alloy. Each spacer 102 and 106 may include a triangular configuration (with rounded corners) at its inner periphery / circumference to conform to the shape and configuration of the outer periphery / circumference of the corresponding rotatable shaft 20, 26 on which the spacers 102 and 106 are mounted. Each spacer 102 and 106 may include three generally flat sides and three rounded corners connecting the three sides. The forming configuration of the inner periphery of the spacers 102 and 106 may differ. Each spacer 102 and 106 may include a generally circular configuration at its outer periphery / circumference to conform to the shape and configuration of the inner periphery / circumference of the corresponding strippers 24, 30, such that the spacers 102 and 106 can be nested with the strippers 24, 30. Spacers 102 and 106 may have a slightly greater thickness than cutter blades 22 and 28.

[0110] The peelers 24 and 30 may be made of steel. The peelers 24 and 30 may be made of metal or metal alloy. Each peeler 24 and 30 may include a generally circular configuration at its inner periphery / circumference to conform to the shape and configuration of the outer periphery / circumference of the corresponding spacers 102 and 106 on which the peelers 24 and 30 are mounted.

[0111] When the paper is shredded, some paper may get stuck on the rotatable shafts 20, 26. A stripper can be configured to prevent paper from getting stuck on the rotatable shafts 20, 26 and can be configured to knock the paper off the rotatable shafts 20, 26. The stripper can be interchangeably referred to as a comb, as it can be configured to comb the paper off the rotatable shafts 20, 26.

[0112] The cutter blades 22, 28, peelers 24, 30, and spacers 102, 106 can be laser-cut from steel, metal, or metal alloy. The cutter blades 22, 28, peelers 24, 30, and spacers 102, 106 can undergo a deburring process, in which small defects (generally referred to as burrs) can be removed from the cutter blades 22, 28, peelers 24, 30, and spacers 102, 106. For example, the cutter blades 22, 28, peelers 24, 30, and spacers 102, 106 produced by a laser cutting process may have small burrs (or "slag") on their respective bottom surfaces, which can be removed by the deburring process.

[0113] refer to Figures 25 to 35 The cutter blades 22, 28 and the peelers 24, 30 are stacked sequentially on the two rotatable shafts 20, 26 until all the necessary parts of the shredder mechanism 14 are assembled.

[0114] Cutter blades 22 and 28, peelers 24 and 30, and spacers 102 and 106 are interleaved and stacked on rotatable shafts 20 and 26, and one end of each shaft 20 and 26 is assembled into support plates 110 and 112, as shown. Figure 25 and Figures 31 to 32 As shown in the diagram, cutter blades 22, 28, peelers 24, 30, and spacers 102, 106 are simultaneously and alternately stacked on the left shaft 20 and right shaft 26. The stacking occurs on both (back and forth) to create the desired interleaving. The stacking order of the cutter blades 22, 28, peelers 24, 30, and spacers 102, 106 on the cutting / rotatable shafts 20, 26, and shafts 114, 116 is as follows: Figure 25 and Figures 31 to 32 As shown in the image.

[0115] The first plurality of peelers 24 may include 176 peelers. The second plurality of peelers 30 may include 176 peelers. The number of the first plurality of peelers and the second plurality of peelers may be different. The first plurality of cutter blades 22 may include 177 cutter blades. The second plurality of cutter blades 28 may include 177 cutter blades. The number of the first plurality of cutter blades and the second plurality of cutter blades may be different. The first plurality of spacers 102 may include 177 spacers, and the second plurality of spacers 106 may include 177 spacers. The number of the first plurality of spacers and the second plurality of spacers may be different.

[0116] For example, each of the rotatable shafts 20 and 26 may have 354 layers mounted thereon. These 354 layers may include 177 layers of cutter blades, 176 layers each having a combination of spacers and strippers (i.e., spacers and strippers nested together), and a layer of spacers (i.e., the remaining one of the 177 spacers). That is, the shredder mechanism 14 may include a total of 708 layers.

[0117] The first layer (i.e., layer 1) and the last layer (i.e., layer 354) on each of the rotatable shafts 20 and 26 omit the peelers 24 and 30. The first layer may include a cutter blade, and the last layer may include a spacer. Figure 33 The diagram shows that the peelers 24 and 30 are omitted in the first layer on each of the rotatable shafts 20 and 26. For example, as... Figure 33 As shown, the first layer of the rotatable shaft 20 includes a cutter blade 22, while the first layer of the rotatable shaft 26 includes a spacer 26 (i.e., without a peeler 30 mounted thereon). Layers 2 to 352 of the 354 layers on each of the rotatable shafts 20 and 26 may include alternating layers of cutter blades and layers in which spacers are nested with peelers.

[0118] A stacking sequence can begin with layer 1 in which spacers 102 are mounted on a rotatable shaft 20, and can end with a layer 354 having cutter blades 22 mounted on the rotatable shaft 20, and layers 2 through 352 (between the first layer / layer 1 and the last layer / layer 354) having alternating layers of cutter blades 22 and layers in which spacers 102 are nested with peelers 24. A stacking sequence can begin with layer 1 in which cutter blades 28 are mounted on a rotatable shaft 26, and can end with layer 354 having spacers 106 mounted on the rotatable shaft 26, and layers 2 through 352 each having a combination of spacers 106 and peelers 30 between layers 1 and 354 (i.e., spacers 106 nested with peelers 30). In another embodiment, the stacking sequence on the rotatable shaft 26 can be the reverse of that discussed above with respect to the rotatable shaft 20. Each of the components (cutter blades, spacers, and / or spacers and peelers) can be fully in place during the stacking sequence.

[0119] refer to Figure 34 The tips of the cutter blades 22 stacked on the rotatable shaft 20 can be configured to point to the top of the relative peeler 30 (with spacers 106 nested therein) stacked on the rotatable shaft 26.

[0120] Before the stacking sequence, cutter blades 22, 28, spacers 102, 106 and peelers 24, 30 can be pre-counted by weight and lined up on the left and right sides of the assembly workstation.

[0121] The shredder mechanism 14 may also include a left support plate assembly 110, a right support plate assembly 112, and a rear guard 129. The left support plate assembly 110, the right support plate assembly 112, and the rear guard 129 are connected to each other to form a space between them to receive rotatable shafts 20, 26, wherein cutter blades 22, 28, peelers 24, 30, and spacers 102, 106 are mounted on shafts 20, 26.

[0122] refer to Figure 14 and Figure 35 The shredder mechanism 14 may also include a first plurality of peeler shafts 1141, 1142, 1143 and 1144 and a second plurality of peeler shafts 1161, 1162, 1163 and 1164. Each of the peeler shafts 114, 116 may have a size of 14 mm (outer diameter).

[0123] refer to Figure 17 and Figure 24Each first peeler 24 may include a plurality of first peeler shaft openings 1181, 1182, 1183, and 1184 through which it is formed. Each of the plurality of first peeler shaft openings 1181, 1182, 1183, and 1184 may be aligned with a corresponding / corresponding opening to form a plurality of first peeler shaft passages 1221, 1222, 1223, and 1224. The plurality of first peeler shafts 1141, 1142, 1143, and 1144 may be configured to be received in the first peeler shaft passages 1221, 1222, 1223, and 1224, respectively, to provide a static configuration for the peeler 24. In one embodiment, the first peeler shaft opening 1181 and the first peeler shaft passage 1221 may be in the form of a notch. The notch may be in the form of a U-shaped opening. The first peeler shaft opening 1181 and the first peeler shaft passage 1221, which are in the form of a notch, can be provided on the top of the peeler 24 and can be configured to receive the first peeler shaft 1141.

[0124] refer to Figure 17 and Figure 24 Each second peeler 30 may include a plurality of second peeler shaft openings 1201, 1202, 1203, and 1204 formed therethrough. Each of the second plurality of peeler shaft openings 1201, 1202, 1203, and 1204 may be aligned with a corresponding / corresponding opening to form a plurality of second peeler shaft passages 1241, 1242, 1243, and 1244. The second plurality of peeler shafts 1161, 1162, 1163, and 1164 may be configured to be received in the second peeler shaft passages 1241, 1242, 1243, and 1244, respectively, to provide a static configuration for the peeler 30. In one embodiment, the second peeler shaft opening 1201 and the second peeler shaft passage 1241 may be in the form of a notch. The notch may be in the form of a U-shaped opening. The second peeler shaft opening 1201 and the second peeler shaft passage 1241, which are in the form of a notch, can be provided on the top of the peeler 30 and can be configured to receive the second peeler shaft 1161.

[0125] Each first stripper 24 may include a through-formed first lubricant delivery tube opening 32. The first lubricant delivery tube opening 32 of the first stripper 24 is radially offset from the first stripper 24 and aligned with each other to form a first lubricant delivery tube passage 34 through the first stripper 24. Each second stripper 30 may include a through-formed second lubricant delivery tube opening 36. The second lubricant delivery tube opening 36 of the second stripper 30 is radially offset from the second stripper 30 and aligned with each other to form a second lubricant delivery tube passage 38 through the second stripper 30. The first lubricant delivery tube passage 34 of the first stripper 24 and the second lubricant delivery tube passage 38 of the second stripper 30 may be configured to receive portions of the through lubricant delivery tube 42. The first lubricant delivery tube opening 32 and the second lubricant delivery tube opening 36 (and the first lubricant delivery tube passage 34 and the second lubricant delivery tube passage 38) may be laser-cut on their respective strippers 24, 30.

[0126] Figure 21 Front and perspective views of the strippers 24 and 30 of the shredder 10 are shown. The number of stripper shafts 114 and 116, stripper shaft openings 118 and 120, stripper shaft passages 122 and 124, and lubricant delivery pipe openings / passages 32, 36 and 34, 38 may vary.

[0127] Each stripper 24, 30 may include two additional orifices 128, 130, which form specialized paper particle reservoirs and provide additional features to aid in the transfer of lubricant to one or more adjacent blades. When shredded paper particles and dust may be trapped in these openings 128, 130, the shredded particles absorb shredder oil and act as a sponge (in a sense). This configuration also helps the cutting block 14 retain more shredder oil while reducing dripping when the shredder 10 is not in use. Furthermore, over time, agitation from shredder vibrations may cause some paper to occasionally fall out of the openings 128, 130, allowing for the collection of new particles. This allows the particles in the openings to remain lubricated to tumble. These two additional orifices 128, 130 of the strippers 24, 30 are interchangeably referred to as paper retention openings 128, 130.

[0128] Each peeler 24, 30 may include paper retention openings 128, 130 formed therein. Each paper retention opening 128, 130 may be configured to face axially for capturing paper particles shredded between a first plurality of cutter blades 22 and a second plurality of cutter blades 28, such that the captured paper particles can collect lubricant therein. For example, each first peeler 24 may have two paper retention openings 1281, 1282, and each second peeler 30 may have two paper retention openings 1301, 1302. The number of the two paper retention openings in each peeler may be different.

[0129] The paper retention openings 128 and 130 can be designed to trap paper within them. The paper being shredded enters these openings. The shredded paper collects lubricant / oil by absorbing it. Some paper may technically adsorb rather than absorb. Due to the stripper, a small amount of extra lubricant / oil from the paper trapped in the paper retention openings 128 and 130 may be distributed onto the cutter blade each time it passes through.

[0130] Each paper retention opening 128, 130 is at least partially aligned with one or more of the first or second plurality of cutter blades 22, 28, such that at least one adjacent cutter blade 22, 28 at least partially (in the radial direction of its axis) overlaps with the paper retention opening 128, 130 for contact with paper particles having collected lubricant when captured therein. Figure 17 and Figure 24 The image shows a partially overlapping configuration of paper retention openings 1281 and 1282 with cutter blade 22 and paper retention openings 1301 and 1302 with cutter blade 28.

[0131] Each paper retention opening 128, 130 is formed through the thickness of the peeler 24, 30. That is, the paper retention openings 1281, 1282 are formed through the thickness of the peeler 24, and the paper retention openings 1301, 1302 are formed through the thickness of the peeler 30.

[0132] At least one adjacent cutter blade 22, 28 that at least partially overlaps with the paper retention openings 128, 130 is a pair of adjacent cutter blades 22, 28 that at least partially overlap with the paper retention openings 128, 130 on their opposite axial sides. That is, the pair of adjacent cutter blades 22 can be configured to at least partially overlap with the paper retention opening 128 on their opposite axial sides, and the pair of adjacent cutter blades 28 can be configured to at least partially overlap with the paper retention opening 130 on their opposite axial sides. Each paper retention opening 1281, 1282 has a pair of adjacent cutter blades 22 that partially overlap with the paper retention opening 1281, 1282 on their opposite axial sides. Each paper retention opening 1301, 1302 has a pair of adjacent cutter blades 28 that partially overlap with the paper retention opening 1301, 1302 on their opposing axial sides.

[0133] The overlapping is intended to allow lubricant to be wiped onto the cutter blades 22, 28 as they pass through the paper retention openings 128, 130 and the lubricated paper inside. The partial overlap is intended to facilitate the entry of paper and lubricant into the paper retention openings 128, 130, allowing the lubricated paper to be stored therein. Furthermore, over time, shredder vibrations may cause some paper to fall out naturally, and then more paper may be collected there. This facilitates the natural replacement and replenishment of paper within the paper retention openings 128, 130.

[0134] In one embodiment, the paper retention openings 128, 130 can be used with the lubricant system 18 described in detail in this patent application. In other aspects of this application, the paper retention openings 128, 130 can be used with any type of lubricant system, including prior art lubricant systems.

[0135] refer to Figure 22 and Figure 23 The shredder mechanism 14 may further include a first pair of retaining rings 104 and a second pair of retaining rings 108. The first pair of retaining rings 104 and the second pair of retaining rings 108 may include heavy-duty external retaining rings. Each of the first pair of retaining rings 104 may be located at an end of the first rotatable shaft 20, and each of the second pair of retaining rings 108 may be located at an end of the second rotatable shaft 26.

[0136] Figure 19 An exploded view of the left support plate assembly 110 of the cutting block assembly 14 of the shredder 10 is shown, while Figure 20 An assembly diagram of the right support plate assembly 112 of the cutting block assembly 14 of the shredder 10 is shown. Each support plate assembly 110, 112 may include an inner bearing support member 134 (the inner bearing support member for the right support plate assembly 112 is not shown), outer bearing support members 136, 138, bearing cover members 140, 142, and ball bearings 144, 146. Two ball bearings 1441, 1442, 1461, 1462 are illustrated for each support plate assembly 110, 112. The ball bearings 1441, 1442, 1461, 1462 may have a size of 35 × 55 × 10. Ball bearings 1441 and 1461 may be configured to receive a first rotatable shaft 20, while ball bearings 1442 and 1462 may be configured to receive a second rotatable shaft 26.

[0137] The left outer bearing support member 136 may include an opening 150. O1 150 O2 150 O3 150 O4 152 O1 152O2 152 O3 and 152 O4 These openings are configured to correspond with the opening / recess 150 of the left inner bearing support member 134. I1 150 I2 150 I3 150 I4 152 I1 152 I2 152 I3 and 152 I4 and the opening 150 with the left bearing cover member 140 C2 150 C3 150 C4 152 C2 152 C3 and 152 C4 Alignment. The left bearing cover member 140 may not include the opening 150 with the left outer bearing support member 136. O1 and 152 O2 and the opening / recess 150 of the left inner bearing support member 134 I1 and 152 I1 Corresponding openings. Alignment openings 150 of the left outer bearing support member 136, the left inner bearing support member 134, and the left bearing cover member 140 are configured to receive a first plurality of peeler shafts 1141, 1142, 1143, and 1144 therein. Alignment openings 152 of the left outer bearing support member 136, the left inner bearing support member 134, and the left bearing cover member 140 are configured to receive a first plurality of peeler shafts 1161, 1162, 1163, and 1164 therein.

[0138] The left outer bearing support member 136 may include an opening 154. O and 156 O Opening 154 O and 156 O The opening 154 is configured to connect with the left inner bearing support member 134. I and 156 I Alignment. These aligned openings 154 and 156 of the left outer bearing support member 136 and the left inner bearing support member 134 can be configured to receive portions of the lubricant delivery pipe 42. The left bearing cover member 140 may not include the opening 154 with the left outer bearing support member 136. O and 156 O and the opening 154 of the left inner bearing support member 134 I and 156 I Corresponding openings.

[0139] The other two openings (in the left outer bearing support member 136, the left bearing cover member 140, and the left inner bearing support member 134) Figure 19 (Shown but not labeled) can be configured to connect the left outer bearing support member 136, the left bearing cover member 140 and the left inner bearing support member 134 to each other.

[0140] Despite Figure 20 There are no specific markings or information about it. Figure 20 Discussions are to be held, but the discussions on the alignment opening of the left outer bearing support member 136 for receiving the stripper shaft and the alignment opening of the left outer bearing support member 136 for receiving the lubricant delivery pipe of the left outer bearing support member 136 can be equally applied to the right support plate assembly 112.

[0141] refer to Figure 14 , Figures 16 to 17 and Figures 36 to 37 The shredder 10 may include a full bin assembly 1800. The full bin assembly 1800 may include a full bin flap 1802, a full bin shaft 1804, a full bin actuator 1806, and a full bin switch 1808. Two full bin flaps 1802 and two full bin actuators 1806 are shown in the illustrated embodiment. The number of full bin flaps and full bin actuators may vary and may depend on the number of bins in the bin assembly 600. Since two waste bins 602, 604 are used in some embodiments of this patent application, this may require a dual full bin sensor assembly 1800. The flap 1802 may be made of nylon material. The shaft 1804 may include a square cross-section configuration. Two nylon flaps 1802 may be woven into the square shaft 1804. The two bins 602, 604 may typically fill at approximately the same rate; however, the full bin assembly 1800 may be configured to detect the highest level in either waste bin 602 or 604.

[0142] The fullness component 1800 can be configured to detect whether one (or both) of the bins 602 and 604 of the bin assembly 600 housed in the cabinet assembly 300 is full during operation of the shredder 10. The fullness component 1800 can be located on a portion of the housing 12 / cabinet assembly 300 and / or bin assembly 600. Signals from the fullness component 1800 can be configured to be sent to a controller C, which in turn can be configured to control the motor 16 based on the received signals. For example, when a signal from a sensor (sent to the controller C) indicates that one (or both) of the bins 602 and 604 of the bin assembly 600 is full during operation of the shredder 10, the controller C can be configured to stop the operation of the motor 16. The controller C can also be configured to provide the user with an indication that one (or both) of the bins 602 and 604 of the bin assembly 600 is full or when the contents of the bin assembly 600 should be emptied. The user's failure to recognize that the bin assembly 600 is full may lead to overfilling, jamming, paper scrambling, or other hazardous conditions.

[0143] The full-load flap 1802 can be configured to lift or rotate upward when the bins (either or both) are filled with shredded material. When the full-load flap 1802 rotates upward, the tab actuator 1806 can be configured to rotate a micro-switch and interact with the micro-switch (in... Figure 16 (As shown in the diagram) When engaged, the microswitch then sends a signal to controller C. Controller C can then be configured to power the full hopper LED icon to illuminate on the control panel, and can also be configured to shut off the power to the shredder motor until the hopper (which has been emptied and reinserted, the full hopper flap 1802 returns to its vertical orientation and the cabinet door is closed), thereby allowing the motor to be powered again to start a new shredding event or resume a previously interrupted event.

[0144] like Figure 17 As shown, the flap 1802 is pivotally attached to the bin side (lower side) of the shredder mechanism 14, located at the access opening of the output and bin assembly 600 of the shredder mechanism 14. Figure 17(Not shown in the image). The pivot attachment of flap 1802 may include a simple pivot attachment about a pivot axis (e.g., of shaft / axis 1804). The pivot attachment of flap 1802 may include hinges and / or other attachment members. The pivot attachment may include attachments for compound motion, which may include multiple axes or other types of motion (such as linear motion). Flap 1802 is configured to rotate freely about shaft / axis 1804 without being impacted by any other force. Therefore, when the shredder mechanism 14 is arranged on bin assembly 600 and bin assembly 600 is empty, flap 1802 is in a first position in which flap 1802 is freely suspended in a downward direction from shredder mechanism 14 under the action of gravity. As bin assembly 600 becomes full of paper and / or other materials, the contents will begin to push against flap 1802 from the shredder side toward the access opening of bin assembly 600. The accumulation of shredded material will eventually be sufficient to push and rotate the flap 1802 to a second position, which can be at approximately 45 to 60 degrees from the first position.

[0145] Figure 9 A lubricant reservoir assembly 400 is shown, and Figure 10 The lubricant cap assembly 402 of the lubricant reservoir 40 is shown. In the following discussion, liquid lubricant may be referred to interchangeably as oil.

[0146] The lubricant system 18 may include a lubricant reservoir assembly 400, which includes a lubricant reservoir 40, a lubricant pump 44, and a lubricant cap assembly 402. The lubricant system 18 may also include a lubricant delivery pipe 42. Each of these components of the lubricant system 18 will be described in detail below.

[0147] As will be clear from the discussion below, the lubricant system 18 may be a closed-loop (oil / lubricant) system. Lubricant may be pumped from the lubricant reservoir 40 by the lubricant pump 44. Lubricant may pass through the lubricant delivery pipe 42 (e.g., through the cutting block / shredder mechanism 14) to lubricate the cutter blades 22, 28 and the strippers 24, 30 in the shredder mechanism 14, and lubricant may be returned to the lubricant reservoir 40.

[0148] refer to Figure 9The lubricant reservoir assembly 400 may include a lubricant cap assembly 402, a lubricant port retaining nut 404, a locking washer (e.g., an external toothed locking washer) 406, a lubricant port 408, lubricant hose clamps 410 and 414, a lubricant feed hose 412, a lubricant float sensor 416, a lubricant discharge cap 418, a lubricant reservoir bracket 420, a lubricant pump 44, a spring clamp 422, a lubricant nozzle 426, and a lubricant hose clamp 424. The lubricant nozzle 426 may be a check valve that allows air to enter the reservoir during pump operation.

[0149] refer to Figure 10 The lubricant cap assembly 402 may include a lubricant cap 428, an O-ring 430 (e.g., a quad O-ring of size 118), and a lubricant cap check valve 432. The lubricant cap 428 may be configured to cover the lubricant port 408 and the liquid lubricant filler opening 417 of the lubricant reservoir 40. When the cap 428 moves to the "open" position, the check valve 432 moves to its open position. In its open position, the check valve 432 may be configured to allow liquid lubricant to flow forward into the liquid reservoir 40. When the cap 428 moves to the "closed" position, the check valve 432 moves to its closed position. In its closed position, the check valve 432 is configured to prevent reverse flow of liquid lubricant from the liquid reservoir 40. The O-ring 430 may be positioned / placed between the check valve 432 and the cap 428. The O-ring 430 may be configured to provide a sealing configuration at the connection between the check valve 432 and the cap 428.

[0150] Lubricant reservoir 40 may be configured to contain a supply of liquid lubricant. Liquid lubricant is interchangeably referred to as lubricant, lubricating fluid, etc. Liquid lubricant may be oil, such as soybean oil, vegetable oil, mineral oil, or other oils. Other lubricants may be used, including other types of liquid lubricants. Lubricant reservoir 40 may be interchangeably referred to as an oil tank or lubricant container. Lubricant reservoir 40 may be configured and designed to be refilled. Lubricant reservoir 40 may have a filling neck extending through one of the walls of the chopper housing 12 to allow easy access for refilling. Lubricant reservoir 40 may also be configured and designed to be easily removed and replaced in case of damage.

[0151] Lubricant port 408 can be configured to supply liquid lubricant to lubricant reservoir 40 via lubricant feed hose 412. Lubricant hose clamp 410 can be configured to connect one end 413 of lubricant feed hose 412 to lubricant port 408, and lubricant hose clamp 414 can be configured to connect the other end 415 of lubricant feed hose 412 to lubricant reservoir 40. Lubricant hose clamps 410, 414 may include hose clamps of type SHC-80. Lubricant reservoir 40 may have a first opening 417 configured to receive a portion of end 415 of lubricant feed hose 412 therein. Lubricant reservoir support 420 can be configured to support and connect the lubricant reservoir 40 to a portion of housing 12 of chopper 10.

[0152] The lubricant float sensor 416 can be configured to sense the level of liquid lubricant in the lubricant reservoir 40. That is, lubricant liquid level data in the lubricant reservoir can be acquired by the lubricant float sensor 416. This data can then be converted into corresponding (residual) lubricant dosage data (i.e., in the lubricant reservoir 40). The lubricant reservoir 40 may have a second opening 419 to receive a portion of the lubricant float sensor 416 therein. Silicone O-ring lubricant (e.g., polysilicon PST-841, 2 oz, for O-ring seals) can be used at the connection between the second opening 419 of the lubricant reservoir 40 and the lubricant float sensor 416.

[0153] The lubricant drain cap 418 can be a screw plug with a sealing ring (e.g., an O-ring 421, such as size 010). The sealing ring can be configured to seal the drain opening (not shown) of the lubricant reservoir 40. The drain opening can be a third opening of the lubricant reservoir 40. The drain opening may be needed to drain waste lubricant when the lubricant is replaced before refilling. A room temperature vulcanizing (RTV) sealant can be used at the connection between the lubricant drain cap 418 and the drain opening of the lubricant reservoir 40.

[0154] Lubricant delivery pipe 42 may communicate with lubricant reservoir 40 in a closed loop and is arranged to pass through both the first lubricant pipe passage 34 and the second lubricant pipe passage 38. The closed loop is configured such that lubricant can flow from lubricant reservoir 40 through lubricant delivery pipe 42 and back to lubricant reservoir 40. Lubricant delivery pipe 42 may communicate with lubricant reservoir 40 in a closed loop. As used herein, the term “closed loop” refers to a closed-loop lubricant flow path or circuit between lubricant delivery pipe 42 and lubricant reservoir 40 (and / or lubricant pump 44 connected to lubricant reservoir 40). That is, some of the lubricant in lubricant delivery pipe 42 may be used to lubricate shredder mechanism 14, and the remaining lubricant may be recycled back to lubricant reservoir 40 after lubrication of shredder mechanism 14. The lubricant delivery fitting 42 may include one or more lubricant delivery conduits connected to the lubricant reservoir 40 for delivering a portion of the liquid lubricant flowing through it to lubricate the strippers 24, 30 and the cutter blades 22, 28.

[0155] The lubricant delivery tube 42 can be configured to continue through the first lubricant tube opening 32 and the second lubricant tube opening 36 (and the first lubricant tube passage 34 and the second lubricant tube channel 38) of the strippers 24, 30. The lubricant delivery tube 42 can be configured to lubricate / oil each spacer 102, 106 from above, such that the lubricant / oil moves to the cutter blades 22, 28 by capillary action.

[0156] The lubricant delivery fitting 42 is configured to allow liquid lubricant to permeate through its surface 46 along portions 56 provided within the first lubricant fitting passage 34 and the second lubricant fitting passage 38, for delivering a portion of the liquid lubricant flowing therethrough to lubricate the strippers 24, 30 and the cutter blades 22, 28. As used herein, for example, the term "permeable" with respect to the lubricant delivery fitting 42 may include the material or construction / configuration of the lubricant delivery fitting 42, which is configured to allow liquid lubricant to pass through or to allow liquid lubricant to diffuse through / through it. For example, the construction / configuration of the lubricant delivery fitting 42 may include a plurality of perforations 54 through its surface 46, as discussed in detail below.

[0157] The lubricant may not have time to dry in the lubricant delivery fitting 42. The lubricant delivery fitting 42 may have an inner diameter of 5 mm (or 0.197 inches) and an outer diameter of 6.38 mm. The lubricant delivery fitting 42 may also be a manifold. The lubricant delivery fitting 42 may not have any additional connections that could lead to any potential leaks. The lubricant delivery fitting 42 may be made of polyurethane material.

[0158] The lubricant delivery fitting 42 may have a plurality of perforations 54 through its surface 46 along portions 56 provided within the first lubricant fitting passage 34 and the second lubricant fitting passage 38 to allow liquid lubricant permeation. The plurality of perforations 54 may include approximately 334 perforations. The perforations 54 may be laser-drilled. Lubricant can be dispersed from the 334 individual laser-drilled lubricant perforations through the polyurethane lubricant delivery fitting 42 to deliver lubricant to each cutter / spacer / stripper assembly.

[0159] refer to Figure 24 The first lubricant fitting opening 32 and the second lubricant fitting opening 36 (as well as the first lubricant fitting passage 34 and the second lubricant pipe channel 38) may have a generally circular cross-sectional configuration 190, with a rectangular cross-sectional configuration 192 at their bottom. The rectangular cross-sectional structure 192 at the bottom allows the perforation 54 on the lubricant delivery fitting 42 to be unobstructed, which can be aligned with the stripper.

[0160] refer to Figure 14 The lubricant delivery fitting 42 can be a single lubricant delivery fitting 42 S Its arrangement is such that it passes through the first lubricant fitting passage 34 in one direction D1, and then returns through the second lubricant fitting passage 38 in the opposite direction D2, wherein the curved portion 48 extends between the first lubricant fitting passage and the second lubricant fitting passage. A single lubricant delivery pipe 42 S Its opposing ends 50, 52 can be connected to the lubricant reservoir 40 to establish a closed loop.

[0161] refer to Figure 14 The lubricant delivery fitting 42 may include a first lubricant delivery pipe 421 and a second lubricant delivery pipe 422. The first lubricant delivery pipe 421 may be arranged to pass through the first lubricant fitting passage 34, and the second lubricant delivery pipe 422 may be arranged to pass through the second lubricant fitting passage 38. Each of the first lubricant delivery pipe 421 and the second lubricant delivery pipe 422 may include opposing ends 50, 51 and 53, 52 that communicate with the lubricant reservoir 40 to establish a closed loop.

[0162] The lubricant pump 44 can be configured to draw liquid lubricant from the lubricant reservoir 40. The lubricant pump 44 can also be configured to pump liquid lubricant from the lubricant reservoir 40 through the lubricant delivery fitting 42.

[0163] Spring clamp 422 may be configured to connect one end 423 of lubricant pump 44 to lubricant reservoir 40, while lubricant hose clamp 424 may be configured to connect the other end 425 of lubricant pump 44 to one end of lubricant delivery fitting 42. Loctite 30516 gasket sealant may be used at the connection between spring clamp 422 and end 423 of lubricant reservoir 40. Spring clamp 422 may include a 0.75-inch spring clamp. Lubricant hose clamp 424 may include a THC1A hose clamp. Lubricant pump 44 may be a micropump (e.g., model 40DSB-ZJF). Lubricant pump 44 may be an electromagnetic pump. Lubricant pump 44 may use 100-120 volts (V).

[0164] In operation, the controller C can be programmed with instructions to determine when to lubricate the cutting blades 22, 28 and the strippers 24, 30. The controller C can be configured to process these instructions and subsequently apply them by activating the lubricant pump 44, causing liquid lubricant to be delivered from the lubricant reservoir 40 to the lubricant delivery fitting 42. The lubricant delivery fitting 42 can be positioned and arranged and / or configured such that liquid lubricant can permeate through its surface 46 along portions 56 provided within the first lubricant fitting passage 34 and the second lubricant fitting passage 38, for delivering a portion of the liquid lubricant flowing therethrough to lubricate the strippers 24, 30 and the cutting blades 22, 28.

[0165] Within the scope of this patent application, the controller C can be programmed to operate the lubricant pump 44 in a variety of different modes. The controller C can be programmed to operate according to a predetermined schedule. The controller C can activate the lubricant pump 44 when the drives for the cutting elements 22, 28 rotate a certain number of times. A sensor (not shown) at the throat of the shredder 10 can be configured to monitor the thickness of the material deposited therein. When the shredded material accumulates to a predetermined total thickness, the controller C can be configured to activate the lubricant pump 44 to lubricate the cutting elements 22, 28. Lubrication can also be scheduled based on the number of times the shredder 10 is used (e.g., the controller C can be configured to track or count the number of shredding operations and activate the lubricant pump 44 after a predetermined number of shredding operations). In each of the embodiments utilizing cumulative measurement, a memory device can be incorporated for the purpose of tracking usage. In each of the foregoing embodiments, the lubricant system 18 can also include manual controls to allow a user to operate the lubricant system 18 outside of a schedule determined by the controller C. A user-activated button can be used to manually engage the lubricant pump 44.

[0166] Controller C can be configured to monitor the load on motor 16. A large load on motor 16 can indicate resistance to the movement of cutting blades 22, 28, and thus indicate that a large amount of paper or a relatively tough substrate such as CDs is being shredded. The load monitoring function can be used as a trigger for lubricating cutting blades 22, 28 and / or strippers 24, 30. For example, a current or voltage sensor can sense the resistance across motor 16 of the shredder mechanism. An increase in the voltage drop across motor 16 (or a decrease in the current flowing to motor 16) can indicate an increase in the mechanical resistance faced by motor 16. Accordingly, when the resistance, voltage drop, or current (all of which are related and therefore any one can be monitored directly or indirectly) reaches a threshold valve, controller C can activate lubricant pump 44 to pump liquid lubricant from liquid reservoir 40 through liquid delivery fitting 42.

[0167] Only rated capacity with small tolerances is allowed into the cutting block / shredder mechanism 14. The paper capacity limiting feature can also be configured to provide some paper tightness and support. (Reference) Figure 24 The shredder 10 includes a limiter / paper clamp 900. The limiter 900 (also referred to as a limiter section) can be configured to limit the quantity or thickness of paper / articles that can be inserted. The limiter 900 may include a surface 902 of the peeler 30 and a surface 904 of the peeler 24. Surfaces 902 and 904 are interchangeably referred to as paper limiter portions. The limiter 900 can be referred to as a paper receiving opening. For example, a first paper limiter portion 904 of one of the first plurality of peelers 24 and a second paper limiter portion 902 adjacent to one of the second plurality of peelers 30 can be configured to form a paper receiving opening 900, which can be configured to limit the quantity or thickness of at least one piece of paper received by the shredder mechanism 14.

[0168] In addition, refer to Figure 18 and Figure 24 Each peeler 24, 30 may have a stationary anvil 908, 906 to initiate paper piercing as early as possible. Each of the first plurality of peelers 24, 30 may be configured to be stationary relative to a first rotatable axis 20. Each of the second plurality of peelers 24, 30 may be configured to be stationary relative to a second rotatable axis 26. This stationary anvil configuration may be configured to improve cutting quality and reduce paper wrinkling (also known as flutter). The anvils are interchangeably referred to as anvil portions. That is, each of the first plurality of peelers 24, 30 may have a first anvil portion 906. Each of the second plurality of peelers may have a second anvil portion 908.

[0169] The first anvil portion 906 of each of the first plurality of peelers 24 can be configured to laterally support at least a piece of paper when each of the second plurality of cutter blades 28 penetrates at least a piece of paper. The second anvil portion 908 of each of the second plurality of peelers 30 can be configured to laterally support at least a piece of paper when each of the first plurality of cutter blades 22 penetrates at least a piece of paper. The anvil 908 can be configured such that the cutter blades 22 on opposite sides abut against the anvil 908 of the peeler 30. The anvil 906 can be configured such that the cutter blades 28 on opposite sides abut against the anvil 906 of the peeler 24. Anvils 908 and 906 can also be interchangeably referred to as piercing anvils.

[0170] Each of the first anvil portion 906 and the second anvil portion 908 may have a non-elongated shape configuration. The first anvil portion 906 may have a first protrusion 906, which may have an angled or convex shape, such that a second plurality of cutter blades 28 adjacent to the first anvil portion 906 are configured to pierce at least paper in the vicinity of the first protrusion 906. The second anvil portion 908 may have a second protrusion 908, which may have an angled or convex shape, such that a first plurality of cutter blades 22 adjacent to the second anvil portion 908 are configured to pierce at least paper in the vicinity of the second protrusion 908.

[0171] For example, the tips of the anvils 908 and 906 may be angled or convex, such that the two cutter blades 22 above and below the peeler 24 can pierce precisely at the tip, or the two cutter blades 28 above and below the peeler 30 can pierce precisely at the tip.

[0172] The first protrusion 906 and the first paper restrictor portion 904 can be configured to generate tension at least at the paper when at least the paper passes through the first protrusion 906 and the paper receiving opening 900. The second protrusion 908 and the second paper restrictor portion 902 can be configured to generate tension at least at the paper when at least the paper passes through the second protrusion 908 and the paper receiving opening 900.

[0173] The gap profile 910 may be immediately following the limiter 900 and before / in front of the anvils 908 and 906, i.e., along the direction of travel of the paper / article being shredded. The gap profile 910 may be interchangeably referred to as the gap space.

[0174] Each of the first plurality of peelers 24 may include a first gap portion 912. The first gap portion 912 may be positioned between a first paper limiter portion 904 and a first anvil portion 906. Each of the second plurality of peelers 30 may include a second gap portion 914. The second gap portion 914 may be positioned between a second paper limiter portion 902 and a second anvil portion 908.

[0175] A first gap portion 912 of one of the first plurality of peelers 24 and a second gap portion 914 of an adjacent peeler in the second plurality of peelers 30 can be configured to form a gap space 910. The gap space 910 can be configured to be wider than the paper receiving opening 900, and the gap space 910 can be configured to reduce at least paper jamming caused by paper wrinkles or folds.

[0176] The shape of the gap profile 910 can be intentionally recessed to allow a non-elongated anvil shape to initiate a more efficient piercing action as the cutter blades 22, 28 rotate sequentially. For example, the shape of the gap profile 910 can include an open area formed between the surface of the peeler 30 / first gap portion 912 and the surface of the peeler 24 / second gap portion 914. The shape of the gap profile 910 can include a substantially elliptical shape or shaped configuration. The gap space can facilitate rapid folding. That is, if the paper wrinkles upon entering the shredder, the gap space can prevent excessive friction. The gap space can minimize contact to two points, rather than along the entire upper peeler profile. This is important because micro-cutting has so many additional peeler components.

[0177] Compared to application '092 (the prior art discussed in the background section of this patent application), the purposefully configured piercing anvil profile shape allows the paper stack to be displaced by the tip of the cutter blade as the cutter blade rotates sequentially around the tip of the anvil on the upper and lower sections. This effectively initiates a dual piercing and cutting action (i.e., the actions of the cutter tip and the anvil apex work in unison).

[0178] Controller C may include one or more processors P. Controller C may include control circuitry. However, without departing from the scope of this patent application, controller C may alternatively include any other suitable type of controller. For example, controller C may include processor P executing code; an integrated computer system running a program; an analog or digital circuit system, etc. Controller C may also be a relay switch that is open to prevent the supply of power to components (e.g., motor 16 of shredder 10) and closed to enable the supply of power. It should be understood that "controller" can be a general structural term referring to a structure that controls one or more modules, devices, and / or circuit components. Shredder 10 may also include a memory device connected to or integrated with controller C for storing information related to shredder 10. The stored information may include, for example, predetermined threshold ranges, predetermined criteria, defined cycles, modes, and the usage flow of shredder 10. See also Figure 1 The controller C may include a power supply PCB 178 and an AC PCB 180.

[0179] The controller C can store information in a memory device and can subsequently retrieve the stored information from the memory device. The memory device can include any suitable type of memory, such as, for example, a hard disk, CD-ROM, optical storage device, magnetic storage device, ROM (read-only memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory), EEPROM (electrically erasable programmable read-only memory), flash memory, or any other suitable memory.

[0180] The shredder 10 may include a solid-state relay (SSR), which is an electronic switching device that turns on or off when an external voltage (AC) is applied to its control terminals. Solid-state relays are more reliable and less prone to fusion closure due to electric arcing. Solid-state relays (SSRs) can perform the same function as electromechanical relays, but solid-state electronic devices do not contain moving parts and have a longer operating life.

[0181] The shredder 10 may include a motor capacitor 182, such as Figure 1 As shown in the diagram. Motor capacitor 182 can be a 75 microfarad motor capacitor. Using motor capacitor 182, motor 16 can be configured to set a rotation direction. Motor capacitor 182 can provide starting torque to motor 16 and increase torque during operation.

[0182] refer to Figure 1 The shredder 10 includes IEC-320 C20 186 (i.e., the male connector on the shredder 10 is powered) and may be provided with a power switch 184 or multiple switches to control the operation of the shredder 10. The power switch 184 may be located, for example, on the shredder housing 12 or anywhere else on the shredder 10. The power switch 184 may include a manually engageable portion connected to a switch module (not shown). Movement of the manually engageable portion of the power switch 184 moves the switch module between various states. The power switch 184 may be, for example, a rocker switch. The switch module can connect the motor 16 to a power source. This connection can be direct or indirect, such as via a controller C. The switch module is in communication with the controller C. Typically, the power source is connected to the controller C via a standard power cord PC, which has a plug at one end that inserts into a standard AC socket. The controller C is also in communication with the motor 16 of the shredder mechanism 14.

[0183] By moving the manually engageable portion, the switch or switch module can move between an on and off position. In the on position, the contacts in the switch module close due to the movement of the manually engageable portion, thereby enabling the supply of electricity to the motor 16. The controller C can send an electrical signal to the driver of the motor 16, causing the motor 16 to rotate the cutting blades 22, 28 of the shredder mechanism 14 in the shredding direction, thereby feeding paper into it. In the off position, the contacts in the switch module open to prevent the supply of electricity to the motor 16. The controller C stops the operation of the motor 16. Alternatively, the switch can be connected to the controller C, which in turn controls a relay switch, a three-terminal bidirectional thyristor switch, etc., to control the current flowing to the motor 16. In addition, the power switch 184 can also have an idle or ready position, which communicates with the control panel. The switch module contains appropriate contacts for issuing a position signal of the manually engageable portion of the switch. Generally, the construction and operation of the power switch 184 and the controller C for controlling the motor 16 are well known, and any construction used for these can be used. Furthermore, the switch does not need to have different positions corresponding to on / off / idle, and these conditions can be states selected in the controller C by the operation of the power switch 184. For example, the power switch 184 does not need to be mechanical and can be of the inductive type. Similarly, switches can be omitted entirely, and the shredder 10 can be started based on the insertion of the article to be shredded. Alternatively, the power switch 184 can also have a reverse position, wherein the contacts are closed to enable the delivery of power to operate the motor 16 in the reverse manner. This is accomplished by using a reversible motor and applying a current with the opposite polarity to the on position. The ability to operate the motor 16 in the reverse manner is desirable so that the cutter elements 22, 28 move in the opposite direction to clear jams.

[0184] In one embodiment, the dimensions mentioned in this patent application may be up to 5%, 10%, 15%, or 20% larger than the values ​​described throughout this patent application, or up to 5%, 10%, 15%, or 20% smaller than the values ​​described throughout this patent application. In another embodiment, the dimensions indicated in this patent application may be within the range of + / -5%, + / -10%, + / -15%, or + / -20% of the values ​​described throughout this patent application.

[0185] Although this patent application has been described in detail for illustrative purposes, it should be understood that such details are merely for illustrative purposes, and this patent application is not limited to the disclosed embodiments, but rather is intended to cover modifications and equivalent arrangements within the spirit and scope of the appended claims. Furthermore, it should be understood that this patent application contemplates that, to the extent possible, one or more features of any embodiment may be combined with one or more features of any other embodiment.

[0186] The description of embodiments in this patent application should not be considered limiting in any way, as numerous configurations and methods utilizing this patent application can be implemented from what has already been disclosed or revealed in this patent application. The systems, features, and embodiments described in this patent application should not be considered limiting in any way. These descriptions represent possible construction and mechanical embodiments and methods for obtaining the desired features. The location and / or form of any minor design details or materials specified in this patent application may be changed, and doing so will not be considered as introducing new materials, as this patent application covers those implementations in the broadest possible form.

[0187] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may also be intended to include the plural forms unless the context clearly indicates otherwise. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore specify the presence of features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Unless specifically identified as an order of performance, the method steps, processes, and operations described herein should not be construed as requiring them to be performed in the particular order discussed or shown. It should also be understood that additional or alternative steps may be employed.

[0188] When an element or layer is referred to as “on another element or layer,” “joined to,” “connected to,” “attached to,” or “linked to” another element or layer, it may be directly on, joined to, connected to, attached to, or linked to another element or layer, or an intermediary element or layer may be present. In contrast, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” or “directly linked to” another element or layer, an intermediary element or layer may not be present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between…” versus “directly between…”, “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0189] Although the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as “first,” “second,” and other numerical terms used herein do not imply order or sequence. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment.

[0190] When describing the relative position, size, dimension, or value of various elements, components, regions, layers, and / or sections, this document may use degree terms such as “generally,” “substantially,” “approximately,” and “about.” These terms mean that such relative position, size, dimension, or value is within a sufficiently precise range or comparison (e.g., equal or nearly equal), as understood by one of ordinary skill in the art in the context of the various elements, components, regions, layers, and / or sections described.

[0191] The embodiments described above have been provided to illustrate the structural and functional principles of this patent application and are not intended to be limiting. Rather, this patent application is not intended to cover all modifications, alterations, and substitutions within the spirit and scope of the appended claims.

Claims

1. A shredder, the shredder comprising: case; The shredder mechanism includes: A first rotatable shaft, the first rotatable shaft having a first plurality of cutter blades fixedly mounted on the first rotatable shaft, A first plurality of strippers, mounted adjacent to a first rotatable shaft, wherein each of the first plurality of strippers is arranged between corresponding pairs of cutter blades located on the first rotatable shaft, each of the first plurality of strippers having a through-formed first lubricant fitting opening, wherein the first lubricant fitting opening is radially offset from the first plurality of strippers and aligned with each other to form a first lubricant fitting passage through the first plurality of strippers; and A second rotatable shaft, the second rotatable shaft having a second plurality of cutter blades fixedly mounted on the second rotatable shaft, A second plurality of strippers, mounted adjacent to the second rotatable shaft, each of the second plurality of strippers being arranged between corresponding pairs of cutter blades located on the second rotatable shaft, each of the second plurality of strippers having a through-formed second lubricant fitting opening, wherein the second lubricant fitting openings are radially offset from the second plurality of strippers and aligned with each other to form a second lubricant fitting passage through the second plurality of strippers; and The first rotatable shaft and the second rotatable shaft are arranged parallel to each other, and the cutter blade on each rotatable shaft is axially staggered with the cutter blade on the other rotatable shaft. A motor, coupled to the shredder mechanism, is used to rotate the first rotatable shaft and the second rotatable shaft in opposite directions to shred the product between the first plurality of cutter blades and the second plurality of cutter blades; and Lubricant system, the lubricant system comprising: A lubricant reservoir for containing a supply of liquid lubricant; A lubricant delivery fitting, which connects to the lubricant reservoir in a closed loop and is arranged to pass through both a first lubricant fitting passage and a second lubricant fitting passage, the closed loop allowing the liquid lubricant to flow from the lubricant reservoir through the lubricant delivery fitting and back to the lubricant reservoir. The lubricant delivery fitting allows the liquid lubricant to permeate through its surface along portions provided within the first and second lubricant fitting passages, for delivering a portion of the liquid lubricant flowing through the lubricant delivery fitting to lubricate the stripper and cutter blades. A lubricant pump for pumping the lubricant from the lubricant reservoir through the lubricant delivery pipe.

2. The shredder according to claim 1, wherein, The lubricant delivery pipe is a single lubricant delivery pipe that is arranged to pass through the first lubricant delivery pipe passage in one direction and then through the second lubricant delivery pipe passage in the opposite direction, wherein a curved portion extends between the first lubricant delivery pipe passage and the second lubricant delivery pipe passage, and the opposite ends of the single lubricant delivery pipe communicate with the lubricant reservoir to establish the closed loop.

3. The shredder according to claim 1, wherein, The lubricant delivery pipe has multiple perforations along its respective portions within the first and second lubricant delivery pipe passages, which pass through the surface of the lubricant delivery pipe and allow the liquid lubricant to permeate through them.

4. The shredder according to claim 3, wherein, The perforation is laser perforation.

5. The shredder according to claim 1, wherein, The lubricant delivery pipe includes a first lubricant delivery pipe and a second lubricant delivery pipe. The first lubricant delivery pipe is arranged to pass through the first lubricant fitting passage, and the second lubricant delivery pipe is arranged to pass through the second lubricant fitting passage, with the opposite ends of each of the lubricant delivery pipes communicating with the reservoir to establish the closed loop.

6. A shredder configured to at least shred paper, the shredder comprising: case; The shredder mechanism includes: A first rotatable shaft, the first rotatable shaft having a first plurality of cutter blades fixedly mounted on the first rotatable shaft, A first plurality of peelers, mounted adjacent to the first rotatable shaft, wherein each of the first plurality of peelers is arranged between corresponding pairs of first plurality of cutter blades located on the first rotatable shaft; and A second rotatable shaft, the second rotatable shaft having a second plurality of cutter blades fixedly mounted on the second rotatable shaft, A second plurality of peelers, mounted adjacent to the second rotatable shaft, wherein each of the second plurality of peelers is arranged between corresponding pairs of second plurality of cutter blades located on the second rotatable shaft; and The first rotatable shaft and the second rotatable shaft are arranged parallel to each other, and the cutter blade on each rotatable shaft is axially staggered with the cutter blade on the other rotatable shaft. A motor, coupled to the shredder mechanism, is used to rotate the first and second rotatable shafts in opposite directions to shred at least paper between the first plurality of cutter blades and the second plurality of cutter blades; and Lubricant system, the lubricant system comprising: A lubricant reservoir for containing a supply of liquid lubricant; One or more lubricant delivery conduits, in communication with a lubricant reservoir, for delivering a portion of the liquid lubricant flowing through the one or more lubricant delivery conduits to lubricate the stripper and cutter blades, and A lubricant pump for pumping the liquid lubricant from the lubricant reservoir through one or more lubricant delivery conduits; The first plurality of strippers and the second plurality of strippers include strippers having paper retention openings formed therein, wherein each paper retention opening faces axially for capturing paper particles from paper shredded between the first plurality of cutter blades and the second plurality of cutter blades in the paper retention opening, so that the captured paper particles can collect lubricant therein.

7. The shredder according to claim 6, wherein, Each paper retention opening is at least partially aligned with the first plurality of cutter blades or the second plurality of cutter blades, such that at least one adjacent cutter blade at least partially overlaps with the paper retention opening for contact with the paper particles containing lubricant when the paper particles are trapped in the paper retention opening.

8. The shredder according to claim 7, wherein, Each paper retention opening is formed through the thickness of its peeler, and the at least one adjacent cutter blade that overlaps at least partially with the paper retention opening is a pair of adjacent blades that overlap at least partially with the paper retention opening on their opposite axial sides.

9. The shredder according to claim 8, wherein, Each paper retention opening has a pair of adjacent blades that partially overlap the paper retention opening on their opposing axial sides.

10. The shredder according to claim 6, wherein, The first plurality of cutter blades and the second plurality of cutter blades are transverse blades having a circumferentially extending edge for longitudinally cutting paper and a radially projecting cutting edge for transversely cutting paper.

11. The shredder according to claim 7, wherein, The first plurality of cutter blades and the second plurality of cutter blades are cross-cutting blades having a circumferentially extending edge for longitudinally cutting paper and a radially protruding cutting edge for transversely cutting paper.

12. The shredder according to claim 8, wherein, The first plurality of cutter blades and the second plurality of cutter blades are cross-cutting blades having a circumferentially extending edge for longitudinally cutting paper and a radially protruding cutting edge for transversely cutting paper.

13. The shredder according to claim 9, wherein, The first plurality of cutter blades and the second plurality of cutter blades are cross-cutting blades having a circumferentially extending edge for longitudinally cutting paper and a radially protruding cutting edge for transversely cutting paper.

14. A shredder configured to shred at least paper, the shredder comprising: case; The shredder mechanism includes: A first rotatable shaft, the first rotatable shaft having a first plurality of cutter blades fixedly mounted on the first rotatable shaft, A plurality of first peelers are mounted adjacent to the first rotatable shaft, each of the plurality of peelers being arranged between corresponding pairs of cutter blades located on the first rotatable shaft, and each of the plurality of peelers having a first anvil portion. A second rotatable shaft, the second rotatable shaft having a second plurality of cutter blades fixedly mounted on the second rotatable shaft, A second plurality of peelers are mounted adjacent to the second rotatable shaft, each of the second plurality of peelers being arranged between corresponding pairs of cutter blades located on the second rotatable shaft, each of the second plurality of peelers having a second anvil portion; and The first rotatable shaft and the second rotatable shaft are arranged parallel to each other, and the cutter blade on each rotatable shaft is axially staggered with the cutter blade on the other rotatable shaft. A motor, coupled to the shredder mechanism, is used to rotate the first and second rotatable shafts in opposite directions to shred at least paper between a first plurality of cutter blades and a second plurality of cutter blades. Wherein, the first anvil portion of each of the first plurality of peelers is configured to laterally support the at least paper as each of the second plurality of cutter blades penetrates the at least paper, and The second anvil portion of each of the second plurality of peelers can be configured to laterally support the at least paper as each of the first plurality of cutter blades penetrates the at least paper.

15. The shredder according to claim 14, wherein, Each of the first plurality of peelers is configured to be stationary relative to the first rotatable axis, and Each of the second plurality of peelers is configured to be stationary relative to the second rotatable axis.

16. The shredder according to claim 15, wherein, Each of the first anvil portion and the second anvil portion has a non-elongated forming configuration.

17. The shredder according to claim 16, wherein, The first anvil portion has a first protrusion in an angled or convex shape, such that the second plurality of cutter blades adjacent to the first anvil portion are configured to pierce at least the paper near the first protrusion, and The second anvil portion has a second protrusion that is angled or convex, such that the first plurality of cutter blades adjacent to the second anvil portion are configured to pierce at least the paper near the second protrusion.

18. The shredder according to claim 17, wherein, Each of the first plurality of peelers includes a first paper restrictor portion and a first gap portion, the first gap portion being positioned between the first paper restrictor portion and the first anvil portion, and Each of the second plurality of peelers includes a second paper restrictor portion and a second gap portion, the second gap portion being positioned between the second paper restrictor portion and the second anvil portion.

19. The shredder according to claim 18, wherein, The first paper limiting portion of one of the first plurality of peelers and the second paper limiting portion of an adjacent peeler in the second plurality of peelers are configured to form a paper receiving opening. Wherein, the first gap portion of one of the first plurality of peelers and the second gap portion of an adjacent peeler in the second plurality of peelers are configured to form a gap space, and The gap space is configured to be wider than the paper receiving opening, and the gap space is configured to reduce at least the paper jamming caused by paper wrinkles or paper folds.

20. The shredder according to claim 19, wherein, The first protrusion and the first paper restrictor portion are configured to generate tension on the at least paper when the at least paper passes through the first protrusion and the paper receiving opening, and The second protrusion and the second paper restrictor portion are configured to generate tension on the at least paper when the at least paper passes through the second protrusion and the paper receiving opening.

21. The shredder according to claim 20, wherein, The paper receiving opening is configured to limit the quantity or thickness of the minimum paper received by the shredder mechanism.

22. The shredder according to claim 19, wherein, The gap space has a substantially elliptical configuration.

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