Cable sweeper

Abstract

Each block segment has openings in which bristles are positioned. The bristles can have a first stiffness or a second stiffness different from the first stiffness. On one block segment, the bristles having the second stiffness can be positioned radially outward of the bristles having the first stiffness.

Description

Technical Field

[0001] This disclosure relates to sweepers for cleaning surfaces, particularly groove brooms for cleaning roads, streets, and other surfaces. Background Technology

[0002] Sweepers can be used to remove debris and particulate matter from a variety of surfaces. In particular, trench brooms can be used to clean roads, streets, and other surfaces and can be mounted on surface cleaning vehicles for movement over surfaces. Trench brooms can also approach curbs or the sides of buildings to remove debris. Trench brooms may include a brush mount for receiving the bristles used for sweeping. Summary of the Invention

[0003] One aspect provides a block segment for a grooved broom. The block segment may include an array of openings having multiple rows and multiple columns for receiving bristles. The bristles may include first bristles having a first stiffness and second bristles having a second stiffness greater than the first stiffness. The second bristles may be alternately positioned in openings in a given row and may be located radially outside the first bristles in a given column. The openings may extend through the block segment in a thickness direction from the top surface to the bottom surface of the block segment. The block segment may also include walls extending laterally within the openings. The bristles may be positioned in the openings and form a U-shape around the wall, such that a first side and a second side of the bristles are positioned on opposite sides of the wall.

[0004] In one aspect, the second cross-sectional area of ​​the second bristle is larger than the first cross-sectional area of ​​the first bristle. In one aspect, the first bristle may have a first cross-sectional area with a first geometry, and the second bristle may have a second cross-sectional area with a second geometry. In this aspect, the first and second geometries may be different. In one aspect, the second diameter of the second bristle may be larger than the first diameter of the first bristle. In one aspect, the block segment may further include a bristle receiving member attached to the block segment. In this aspect, the bristle receiving member may include an opening therein in which the second bristle is positioned. In one aspect, the bristle receiving member may be integral with the block segment. In one aspect, the first bristle may include a first material having a first elasticity, and the second bristle may include a second material having a second elasticity. In a further aspect, the first elasticity may be greater than the second elasticity. In a further aspect, the first elasticity and the second elasticity may be substantially equal. In one aspect, the second bristle may include at least one of an outer layer, a coating, and a rib. In one aspect, the first and second bristles may include steel. In one aspect, the opening may extend through the block segment in the thickness direction from the top surface to the bottom surface of the block segment at an angle to an axis that is generally parallel to the central axis of the grooved broom. The bristles may extend outward from the bottom surface of the block segment at this angle. In another aspect, the first bristle may be positioned approximately adjacent to the second bristle.

[0005] Another aspect provides a block segment for a trench broom. The block segment may include an array having rows and columns and bristles positioned in the array. The bristles may include first bristles having a first stiffness and second bristles having a second stiffness greater than the first stiffness. The second bristles may be positioned continuously in rows and located radially outside the first bristles in a given column. The block segment may also include openings arranged in the array to receive the bristles. The openings may extend through the block segment in the thickness direction from the top surface to the bottom surface of the block segment. The block segment may also include walls extending laterally within the openings. The bristles may be positioned in the openings and form a U-shape around the wall, such that a first side and a second side of the bristles are positioned on opposite sides of the wall. In one aspect, the block segment may further include about 20 to about 40 openings in which about four to about eight second bristles may be positioned. In a further aspect, about four to about eight second bristles may be positioned continuously in rows. In one aspect, the first bristles may be positioned in the remaining openings. In a further aspect, each of the second bristles may be positioned substantially adjacent to at least one of the first bristles. In another aspect, each of the first bristles may be substantially adjacent to at least one other first bristle.

[0006] Another aspect provides a grooved broom. The grooved broom may include one or more block segments. Each block segment may include bristles. The bristles may include at least one of a first bristle and a second bristle, the first bristle having a first stiffness and a first cross-sectional geometry, and the second bristle having a second stiffness different from the first stiffness and a second cross-sectional geometry different from the first cross-sectional geometry. The block segment may include: an opening for receiving the bristles, the opening extending through the block segment in a thickness direction from a top surface to a bottom surface of the block segment; and a wall extending laterally within the opening, the bristles being positioned in the opening and forming a U-shape around the wall, such that a first side and a second side of the bristles are positioned on opposite sides of the wall. In one aspect, the grooved broom may include about two to about five block segments. In a further aspect, at least two block segments may be different.

[0007] Another aspect provides a modified block segment. This modified block segment may include a bristle receiver for receiving the bristle segment. The bristle receiver may be located inside the outer edge of the block segment. This modified block segment may be formed during an injection molding process, for example, by placing an insert in a tool. The insert may include a cavity for forming the bristle receiver and receiving the bristle segment. Attached Figure Description

[0008] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate the aspects and, together with the description, further serve to explain the principles of the aspects, enabling those skilled in the art to manufacture and use the aspects.

[0009] Figure 1A It is a perspective view of a vehicle with grooved brooms based on various aspects.

[0010] Figure 1B It is based on various aspects Figure 1A An enlarged view of the grooved broom in the image.

[0011] Figure 2 It is a perspective view of the grooved broom based on various aspects.

[0012] Figure 3 It is a side view of a grooved broom based on various aspects.

[0013] Figure 4 It is a top view based on the block segments from various aspects.

[0014] Figure 5 It is based on various aspects Figure 4 The cross-sectional view of the block segment taken along line 5-5.

[0015] Figure 6 It is a perspective view based on the segmentation of blocks from various aspects.

[0016] Figure 7A It is a top view based on the block segments from various aspects.

[0017] Figure 7B yes Figure 7A The side view of the block segment cut along line 7B-7B.

[0018] Figure 8A It is a side view based on the various aspects of the brush bristles.

[0019] Figure 8B yes Figure 8A The cross-sectional view of the brush bristles taken along line 8B-8B.

[0020] Figure 9A It is a side view based on the various aspects of the brush bristles. Figure 9B yes Figure 9A The cross-sectional view of the brush bristles taken along line 9B-9B.

[0021] Figure 10A It is a top view of the grooved broom based on various aspects.

[0022] Figure 10B yes Figure 10A A side view of a grooved broom.

[0023] Figure 11A It is a top view of the grooved broom based on various aspects.

[0024] Figure 11B yes Figure 11A A side view of a grooved broom.

[0025] Figure 12A It is a top view of the grooved broom based on various aspects.

[0026] Figure 12B yes Figure 12A A side view of a grooved broom.

[0027] Figure 13 It is a top view of the grooved broom based on various aspects.

[0028] Figure 14 It is a top view of the grooved broom based on various aspects.

[0029] Figure 15 It is a top view of the grooved broom based on various aspects.

[0030] Figure 16 It is a top view of the grooved broom based on various aspects.

[0031] These features and advantages will become more apparent from the detailed description set forth below when taken in conjunction with the accompanying drawings, in which similar reference numerals consistently identify corresponding elements. In the drawings, the same reference numerals generally denote identical, functionally similar, and / or structurally similar elements. Detailed Implementation

[0032] The invention will now be described in detail with reference to aspects thereof as illustrated in the accompanying drawings. References to “an aspect,” “one aspect,” “exemplary aspect,” etc., indicate that the described aspect may include a particular feature, structure, or characteristic, but not every aspect necessarily includes that particular feature, structure, or characteristic. Furthermore, these phrases do not necessarily refer to the same aspect. Further, when a particular feature, structure, or characteristic is described in conjunction with an aspect, it is considered that implementing such a feature, structure, or characteristic in relation to other aspects falls within the knowledge of those skilled in the art (whether explicitly described or not).

[0033] The following examples are illustrative examples of the present aspect, but are not limiting of the present aspect. Other suitable modifications and adjustments to various conditions and parameters commonly encountered in the art and apparent to those skilled in the art fall within the spirit and scope of this disclosure.

[0034] A grooved broom is provided in various aspects. As described herein, the grooved broom can be segmented and can include one or more block segments (e.g., one to four or five block segments). Each block segment can have one or more openings arranged in one or more rows (e.g., two rows) (e.g., about 20 to about 40 openings). Each opening can receive bristles that can form a U-shape around the wall of the opening and extend downward to contact the surface to be cleaned. As the grooved broom rotates about its central axis (i.e., its axis of rotation), the bristles can clean the surface along the path of the grooved broom.

[0035] Surfaces can be made of different materials and / or have accumulated debris, thus requiring a variety of different cleaning applications. The grooved brooms described herein can include various patterns adapted to a variety of surfaces. A pattern can be defined in part by the number of block segments. Each block segment can have the same or different arrays of openings for receiving bristles for cleaning, the same or different opening structures, and / or the same or different bristle positioning. The arrays of openings, opening structures, and / or bristle positioning can together form a pattern to modularly adapt the grooved broom for cleaning one or more specific surfaces.

[0036] Cleaning can target different surfaces and break down and / or remove debris. The stiffness of the bristles can vary to accommodate cleaning different surfaces. For example, the bristles can have a first stiffness or a second stiffness, where the second stiffness differs from the first. Bristles with a second stiffness can be stiffer to provide a more aggressive cleaning than bristles with a first stiffness. The number and / or placement of bristles with different stiffnesses can vary depending on the type of furrow broom and the broom block to further adapt to cleaning. For example, on paved roads, bristles with a stiffer second stiffness can be restricted to prevent damage to the road surface due to abrasive contact (i.e., highly aggressive cleaning). In another example, bristles with a second stiffness can be positioned radially outside bristles with a first stiffness to target surfaces with growth (e.g., weeds or grass), such as furrow surfaces prone to abundant growth or surfaces adjacent to curbs and buildings. Furthermore, positioning bristles with a second stiffness in specific locations can prevent the bristles from unfurling during rotation and thus can improve their cleaning effectiveness. Bristles with different stiffnesses can reinforce each other and work together (e.g., as a composite) to take advantage of different stiffnesses and provide more effective cleaning.

[0037] The grooved brooms described in this article can also be manufactured efficiently because each component can be produced and distributed separately. Furthermore, including bristles of varying stiffness reduces the weight of the grooved broom, which supports manufacturing efficiency. Increased manufacturing efficiency significantly reduces the cost of the grooved brooms. Cost savings extend beyond manufacturing; for example, lighter grooved brooms support extended motor life and limit operating costs. Therefore, along with considerations for the operating motor, the selection of bristle stiffness and its placement within the grooved broom block can vary depending on surface type to effectively clean and prevent damage from continuous abrasive contact.

[0038] exist Figure 1A-1BA trench broom 100 is shown. In some aspects, the trench broom 100 can be mounted on a vehicle 10 (e.g., a truck, tractor, or compact vehicle). The vehicle 10 can guide the trench broom 100 along various surfaces. The trench broom 100 can be positioned on one side of the vehicle 10 to move along curbs or the sides of buildings for cleaning (e.g., sweeping, debris and / or particulate removal, etc.) areas where debris may collect. The vehicle 10 can also move the trench broom 100 along the floor in, for example, a manufacturing area or retail environment. The vehicle 10 can support a drive 12 and a drive plate 50. The drive 12 can rotate the drive plate 50 and the trench broom 100 supported by the drive plate 50 (e.g., by an electric motor or hydraulic motor). The trench broom 100 can rotate about its central axis 20 (i.e., its axis of rotation) to move along its path and / or break up debris or other materials (e.g., weeds, grass, mud, dirt, sand, litter, etc.). The central axis 20 may be substantially perpendicular to the path along which the grooved broom 100 moves (e.g., the surface to be cleaned). In one aspect, the central axis 20 may be substantially vertical. When the grooved broom 100 rotates about the substantially vertical central axis 20, the grooved broom may be positioned substantially horizontal. In another aspect, the central axis 20 may be substantially vertical. When the grooved broom 100 rotates about the substantially vertical central axis 20, the grooved broom may be positioned substantially horizontal.

[0039] like Figure 2-3 As shown (see also) Figure 11A-16 The trench broom 100 can be segmented, such that it can include one or more block segments 200. In some aspects, the trench broom 100 may include about one to about five block segments 200. The trench broom 100 may also include bristles 300. In one aspect, the bristles 300 may include first bristles 330 and / or second bristles 340. In some aspects, debris or other material along the path of the trench broom 100 may be guided upward through opening 110 for collection (e.g., by air suction).

[0040] The block segment 200 can be fixed to the drive plate 50. In some aspects, the fixing attachment between the block segment 200 and the drive plate 50 can utilize bolts, adhesives, welding, etc. The block segments 200 can be fixed to the drive plate 50 such that they are arranged radially around the central axis 20 of the grooved broom 100. Furthermore, the block segment 200 can be arc-shaped and can have a thickness T. B .

[0041] The bristles 300 can be positioned within and extend downward from the block segment 200. The bristles 300 on the grooved broom 100 may include an upper end 310 and a lower end 320. The upper end 310 may be supported by the block segment 200, which will be described in further detail below. The lower end 320 may contact a surface for cleaning.

[0042] In one aspect, the grooved broom 100 may include first bristles 330 and / or second bristles 340. The first bristles 330 may have a first stiffness. The second bristles 340 may have a second stiffness different from the first stiffness. Having bristles 300 with different stiffnesses allows the grooved broom 100 to be adapted to a specific surface to be cleaned. For example, the number and / or position of the first bristles 330 and the second bristles 340 on the block segment 200 may be modified to suit the cleaning performed by the grooved broom 100.

[0043] In one aspect, the block segment 200 can be removably attached to the drive plate 50. In another aspect, the bristles 300 can be removably positioned within the block segment 200. Therefore, the block segment 200 and the bristles 300 can be modular, allowing the grooved broom 100 to be adapted to various surfaces and / or easily inspected after initial assembly. In another aspect, the block segment 200 and the bristles 300 can be integrally formed.

[0044] like Figure 4 As shown, the block segment 200 may include a top surface 215, a bottom surface 225, a first end 210, a second end 220, an outer edge 230, and an inner edge 240. The top surface 215 and the bottom surface 225 may be opposite top and bottom sides of the block segment 200. The first end 210 and the second end 220 may be opposite lateral extensions of the block segment 200. The outer edge 230 and the inner edge 240 may be curved and may be opposite longitudinal extensions of the block segment 200. The inner edge 240 may be located radially inside the outer edge 230, such that the inner edge may face the interior of the grooved broom 100.

[0045] In some aspects, the outer edge 230 may be beveled or chamfered, such that the outer edge 230 is inclined relative to the top surface 215 and / or the bottom surface 225. The distance from the central axis 20 to the point where the outer edge 230 meets the bottom surface 225 may be greater than the distance from the central axis to the point where the outer edge 230 meets the top surface 215. Therefore, the bottom surface 225 may extend further from the central axis 20 than the top surface 215. In some aspects, the block segment 200 does not extend beyond the drive plate 50. In other aspects, the outer edge 230 of the block segment 200 may extend beyond the drive plate 50. Therefore, the trench broom 100 may be positioned to absorb lateral impacts (e.g., from curbs, building sides, walls, edges, etc.).

[0046] The block segment 200 may further include one or more mounting alignment holes 250. The block segment 200 may include one or more openings 260 arranged in one or more rows 265 and one or more columns 268. Each opening 260 may include a first sidewall 270, a second sidewall 280, and a wall 290. In one aspect, the openings 260 have substantially the same size and dimensions as well as the same wall 290.

[0047] The opening 260 can receive and support bristles 300, said bristles including first bristles 330 and / or second bristles 340. For example... Figure 5 As shown, opening 260 can extend from top surface 215 to bottom surface 225 through the thickness (thickness T) of block segment 200. B ,like Figure 3 (As shown). Wall 290 may extend laterally through opening 260. Bristles 300 may be U-shaped and may be inverted and inserted into opening 260. Bristles 300 may surround wall 290 such that each side of bristles 300 (i.e., the legs of the U-shape) may be positioned on opposite sides of wall 290. Bristles 300 may be held in opening 260 by fitting between first sidewall 270 and second sidewall 280. In some aspects, bristles 300 may be held by alternative or additional attachments (e.g., adhesives, welding, etc.). In one aspect, fitting may allow bristles 300 to make some movement. Thus, bristles 300 may bend and adjust during rotation of grooved broom 100. Bristles 300 may extend through opening 260 and extend outward from bottom surface 225 of block segment 200. Further details regarding bristles 300 are provided below. In some respects, the opening 260 may be circular when viewed from the top view; however, other orientations of the opening 260 may be conceived (e.g., rectangular, elliptical, etc.).

[0048] refer to Figure 4-5In some aspects, the openings 260 can be arranged in two rows 265: a first row 266 and a second row 267. In other aspects, the openings 260 can be arranged in three or more rows 265. In one aspect, the rows 265 can be radial rows. The first row 266 can be adjacent to the inner edge 240. The second row 267 can be adjacent to the outer edge 230, placing it in the middle of the first row 266. Thus, the second row 267 can be an outer row, and the first row 266 can be an inner row. In some aspects, the block segment 200 can taper from the outer edge 230 to the inner edge 240. Therefore, the first row 266 can support fewer openings 260 than the second row 267. In other aspects, the first row 266 can support more openings 260 than the second row 267. In some aspects, the first row 266 and the second row 267 can have the same number of openings 260. In these respects, the opening 260 arranged on the first row 266 can be closer to each other than the opening 260 arranged on the second row 267.

[0049] The opening 260 in the first row 266 can have a central axis 26 (i.e., an axis within the opening 260). The opening 260 in the second row 267 can have a central axis 27 (i.e., an axis within the opening 260). In some aspects, the openings 260 in the first row 266 and the openings 260 in the second row 267 can be substantially adjacent. In one aspect, these openings 260 can form a column 268. Therefore, the openings 260 arranged in row 265 can also be arranged as one or more columns 268. In one aspect, the column 268 can be a radial column. In one aspect, only one opening 260 can be arranged as a column 268. In this aspect, the first row 266 and the second row 267 can have different numbers of openings 260. In some aspects, the openings 260 can be spaced at a distance d. C They are arranged adjacent to each other in the same row 265. In some respects, the opening 260 can be spaced apart by a distance d. R They are arranged adjacently in different rows 265. For example, d C and / or d R The range can be from about 1 cm to about 20 cm, for example from 5 cm to 15 cm.

[0050] In some aspects, rows 265 and columns 268 may form an array 269. In some aspects, the array 269, along with the number and / or position of the first bristles 330 and the second bristles 340 in the block segment 200, may together form one or more patterns. As described above, the number and / or position of the first bristles 330 and the second bristles 340 in the block segment 200 may allow the grooved broom 100 to perform cleaning on a variety of surfaces. Each pattern may allow the grooved broom 100 to adapt to cleaning one or more specific surfaces. In some aspects, the opening 260 may extend segmentally from the top surface 215 to the bottom surface 225 at one or more angles through the thickness (thickness T) of the block segment. B ,like Figure 3 (As shown). The angle (or multiple angles) of the opening 260 extension can further define the pattern.

[0051] Opening 260 can extend segmentally from top surface 215 to bottom surface 225 at an angle of up to approximately 60 degrees to the axis of the central axis 20 of the grooved broom 100, through the thickness (thickness T) of the block segment. B ,like Figure 3 As shown). Figure 5 As shown, in some aspects, the opening 260 arranged in the first row 266 can extend at an angle α1 to the axis 21. For example, the angle α1 can be in the range of about 0 degrees to about 60 degrees, for example, in the range of about 10 degrees to about 30 degrees. Similarly, the opening 260 arranged in the second row 267 can extend at an angle α2 to the axis 22. For example, the angle α2 can be in the range of about 0 degrees to about 60 degrees, for example, in the range of about 10 degrees to about 30 degrees.

[0052] In some respects, the openings 260 spanning the first row 266 and the second row 267 can extend at the same angles to axes 21 and 22, respectively. Therefore, the angles α1 and α2 with axis 21 and axis 22 can be approximately equal. In this way, the openings 260 in the array 269 can similarly be angled relative to the vertical direction. In other respects, the openings 260 spanning the first row 266 and the second row 267 can extend at different angles to axes 21 and 22, respectively. Thus, the openings 260 arranged in the first row 266 can extend at an angle α1 to axis 21, and the openings 260 arranged in the second row 267 can extend at an angle α2 to axis 22. Alternatively, the openings 260 arranged in the same row 266 / 267 can extend at different angles to the axis approximately parallel to the central axis 20 of the grooved broom 100. For example, across the first row 266, one or more openings 260 may extend at an angle α1 to axis 21. Similarly, across the second row 267, one or more openings 260 may extend at an angle α2 to axis 22.

[0053] refer to Figure 5-6 The bristles 300 may extend through the opening 260 and outward from the bottom surface 225 of the block segment 200. Across the first row 266, the bristles 300 may extend outward from the bottom surface 225 of the block segment 200 substantially along the central axis 26 at an angle α1 to the axis 21. Across the second row 267, the bristles 300 may extend outward from the bottom surface 225 of the block segment 200 substantially along the central axis 27 at an angle α2 to the axis 22. In some aspects, the bristles 300 extending at an angle α1 to the axis 21 or at an angle α2 to the axis 22 may be offset and / or substantially parallel to adjacent bristles 300 (e.g., in the same row 265 or different rows 265). As the grooved broom 100 rotates about the central axis 20, the offset bristles 300 may reduce the contact between substantially adjacent bristles 300. In one aspect, this may allow for longer bristles 300. In some aspects, the first bristles 330 having a first stiffness and the second bristles 340 having a second stiffness are positioned in the opening 260 according to the angle α1 with axis 21 and the angle α2 with axis 22. In this way, the angle (or multiple angles) formed by the extension of the first bristles 330 and the second bristles 340 can further define the pattern so that the grooved broom 100 is adapted to clean one or more specific surfaces.

[0054] like Figure 6-7B As shown, in some aspects, block segment 2000 may be similar to block segment 200 and may include and / or support components similar to block segment 200. In one aspect, block segment 2000 may additionally include a bristle receiving member 2950.

[0055] In one aspect, the brush receiving member 2950 can be integrally formed with the block segment 2000. In another aspect, the brush receiving member 2950 can be attached to the block segment 2000 using bolts, adhesives, welding, etc. In yet another aspect, the brush receiving member 2950 can be removable, making it modular and allowing for selective placement on the block segment 2000. In one aspect, the brush receiving member 2950 can be injection molded together with the block segment 2000. In some aspects, the brush receiving member 2950 can support brush bristles 3000. Bristles 3000 can be positioned within the brush receiving member 2950 and can extend downward from it. Bristles 3000 can be held in the brush receiving member 2950 via snap-fit, press-fit, or another attachment method (e.g., adhesives, bolts, welding, etc.). In one aspect, a second brush bristle 3400 can be positioned within a cavity of the brush receiving member 2950. In another aspect, the first bristles 3300 and / or the second bristles 3400 may be positioned within the bristle receiver 2950. In some aspects, similar to the bristles 300 held by the block segment 2000, the bristles 3000 held by the bristle receiver 2950 may be angled. The addition and / or placement of the bristle receiver 2950 may additionally create a pattern on the block segment 2000 to adapt the cleaning to a specific application.

[0056] In another aspect, the block segment 2000 can be modified to include a bristle receiver 2950 located inside the outer edge 2300. In this aspect, the bristle receiver 2950 can be formed during injection molding, for example, by placing an insert in a tool. The insert may include a cavity to form the bristle receiver 2950 capable of receiving bristles.

[0057] refer to Figure 5-7B In some respects, the corresponding openings 260 / 2600, the first sidewalls 270 / 2700, the second sidewalls 280 / 2800, and / or the walls 290 / 2900 may have different dimensions and / or may be reinforced to retain the second bristles 340 / 3400. The increased dimensions and / or strength may be sufficient to resist the additional forces generated by the stiffer second bristles 340 / 3400.

[0058] refer to Figures 8A-9BThe bristles 300 may include one or more of the following: metal, plastic, composite material, ceramic, polymer, natural fiber, etc. For example, the bristles 300 may include one or more of steel, aluminum, nylon, polyester, polypropylene, polyvinyl chloride, plant fiber, or hair. In one aspect, the bristles 300 may include flat steel wire. In another aspect, the bristles 300 placed within the opening 260 may include, for example, about fifteen to about thirty individual bristles. Other aspects specify that the bristles 300 may be composed of other materials or mixtures of materials. For example, the bristles 300 may have a mixture of steel and polypropylene. In yet another aspect, the bristles 300 may include polyurethane or other composite materials with a diameter of about 0.1 cm to about 0.21 cm. In some aspects, the bristles 300 may be round and straight or curly.

[0059] Including bristles 300 made of different materials with varying structural properties on a single block segment 200 can improve cleaning ability for specific types of debris or surfaces. In another aspect, the length of the bristles 300 can be varied, which can improve cleaning ability for specific types of debris or surfaces (e.g., intermediate surfaces). In this aspect, the type of bristles 300 in the block segment 200 can be customized to improve cleaning ability for specific types of debris or surfaces. Therefore, the material and profile of the bristles 300 can additionally define the pattern to adapt the trench broom 100 for cleaning one or more specific surfaces. For example, trench brooms can typically be used for outdoor cleaning streets requiring different types or degrees of contact (e.g., abrasive or fine contact). Streets may vary in particle size and may be made of various materials such as concrete, brick, cobblestone, and / or asphalt, each requiring different cleaning methods. Streets may also include vegetation such as grass or weeds. In another example, streets may have other natural debris such as sand, soil, and rocks, or non-natural debris such as litter and recyclables. Therefore, by modifying the bristles 300 and / or the pattern of the bristles 300 in the block segment 200, the cleaning performed by the grooved broom 100 can be enhanced to effectively clean these different surfaces, growths and / or debris.

[0060] In one aspect, the trench broom 100 may include bristles 300, which may be first bristles 330 having a first stiffness and / or second bristles 340 having a second stiffness. The first bristles 330 and second bristles 340 may be selectively positioned on the block segment 200 in a defined pattern, adapting the trench broom 100 to clean one or more specific surfaces. For example, the second bristles 340, having a second stiffness greater than the first stiffness of the first bristles 330, may provide more abrasive contact on the surface being cleaned to better target debris, such as street growth and compacted soil. The first bristles 330, having a first stiffness less than the second stiffness of the second bristles 340, may provide a finer contact, for example, to remove sand and dust. The trench broom 100 may include first bristles 330 and / or second bristles 340 to provide both abrasive and fine contact with the surface.

[0061] In some aspects, the first bristles 330 and the second bristles 340 may be positioned in the same opening 260 in the block segment 200. In one aspect, the stiffness of one or more portions of the grooved broom 100 may be modified by increasing or decreasing the number of the first bristles 330 or the second bristles 340 in each opening 260.

[0062] In other aspects, the corresponding opening 260 may include a first bristle 330 or a second bristle 340. In this aspect, the stiffness of one or more portions of the grooved broom 100 can be modified by specifically positioning the first bristle 330 and the second bristle 340 in a particular opening 260 on the block segment 200. In one aspect, the second bristle 340 may be positioned in openings 260 arranged in a first row 266 and / or a second row 267. In another aspect, the second bristle 340 may be positioned in openings 260 arranged only in the second row 267. The grooved broom 100 can also be customized by including fewer bristles 300. For example, bristles 300 may be omitted in the openings 260 to create a paddle-like contact with the surface, for example, to clean surrounding snow.

[0063] The positions of the first bristles 330 and the second bristles 340 can be defined and / or modified based on the desired surface to be cleaned. For example, growths on the surface may appear along curbs or the sides of buildings. Therefore, stiffer bristles, such as the second bristles 340 having a second stiffness greater than that of the first bristles 330, can be positioned across the second row 267 to target such debris.

[0064] Furthermore, the position of the first bristles 330 and / or the second bristles 340 can additionally define the pattern to adapt the grooved broom 100 to a specific cleaning application. In one aspect, the grooved broom 100 may include more first bristles 330 than second bristles 340 to limit abrasive contact and prevent surface damage. In this way, the number of first bristles 330 and / or second bristles 340 can additionally define the pattern.

[0065] The first bristle 330 may have a first stiffness that is less than the second stiffness of the second bristle 340. Stiffness can be determined by the material, diameter, cross-sectional area, cross-sectional geometry, wall thickness, outer layer, coatings for reinforcement, ribs, openings, etc. For example, the first bristle 330 may have a circular, elliptical, rectangular, star-shaped, plus-shaped, etc., cross-sectional geometry. Figures 8A-8B As shown, the first bristle 330 may be made of steel, such as flat spring steel. In other aspects, the first bristle 330 may include other materials (e.g., metals, plastics, composites, ceramics, polymers, natural fibers, etc.). In one aspect, the first bristle 330 may include a material having a first elastic modulus that is less than the second elastic modulus of the material of the second bristle 340.

[0066] In other aspects, the first bristle 330 and the second bristle 340 may be made of the same material, but may have variable stiffness based on other characteristics (e.g., diameter, cross-sectional area, cross-sectional geometry, wall thickness, outer layer, coating for reinforcement, ribs, openings, etc.). In some aspects, the diameter of each first bristle 330 may be about 0.5 mm. In another aspect, the diameter of each first bristle 330 may be a hardened spring steel with a width of about 0.2 cm to about 0.4 cm and a thickness of about 0.05 cm to about 0.11 cm. In another aspect, the first bristle 330 may be a compact cable with a diameter between about 0.3 cm and about 1.2 cm. In yet another aspect, the first bristle 330 is a flat drawn wire with a rectangular cross-section. The thickness may range from about 0.076 cm (0.03 in) to about 0.127 cm (0.05 in). The width may range from about 0.2 cm (0.08 in) to about 0.5 cm (0.2 in). In one aspect, the first bristles 330 may have a first cross-section having a first geometry. In another aspect, the first bristles 330 may have a low moment of inertia relative to the surface plane. Therefore, the first bristles 330 can be used for finer cleaning to target separations between different surfaces. Greater motion and flexibility are possible upon impact, allowing the first bristles 330 to bend to reach cracks, particles, gaps, etc. Additionally, the first bristles 330 can better target lighter debris (e.g., sand and dust) and particulate matter.

[0067] like Figures 9A-9B As shown, the second bristle 340 can be made of steel, such as flat spring steel. In other aspects, the second bristle 340 can include other materials (e.g., metals, plastics, composites, ceramics, polymers, natural fibers, etc.). In one aspect, the diameter of each second bristle 340 can range from about 0.3 cm (0.125 in) to about 0.8 cm (5.16 in). In another aspect, the second bristle 340 can be hardened spring steel and its diameter can range from about 0.05 cm to about 0.11 cm. In another aspect, the second bristle 340 can be a taut cable and its diameter can range from about 0.3 cm to about 1.2 cm. In some aspects, the diameter of each second bristle 340 can be about 0.476 cm (about 3 / 16 in). The second bristle 340 can be thicker than the first bristle 330, making the second bristle 340 stiffer. In other respects, the second bristles 340 can be folded onto the composite "core" (i.e., the central mass body), making them stiffer than the first bristles 330.

[0068] In some aspects, the second bristles 340 may be rod-shaped or flattened, comprising a polymeric material. In some aspects, the second bristles 340 may be coated with a polymeric material. In these aspects, based on testing, the trench broom 100 enhances the cleaning of growing vegetation (e.g., vegetation and / or dirt / soil removal). In these aspects, the diameter of each second bristle 340 may range from about 0.1 cm to about 3 cm, for example, from about 0.3 cm (0.125 in) to about 1.27 cm (0.5 in) or 1.9 cm (0.75 in).

[0069] In one aspect, the second bristles 340 may have a second cross-section having a second geometry. In some aspects, the second bristles 340 may have a circular, elliptical, rectangular, or star-shaped, plus-shaped, etc., cross-sectional geometry. This cross-sectional geometry can provide increased stiffness of the second bristles 340. For example, in some aspects, the second bristles 340 may have a ribbed exterior. Forces from lateral impacts can be transferred to openings located between the ribs. In this way, the second bristles 340 can absorb impacts and reduce buckling (i.e., the second bristles 340 can be stiffer). In one aspect, the second bristles 340 may have a higher moment of inertia relative to the surface plane. Therefore, the relatively stiff second bristles 340 can be used for more aggressive cleaning to target debris that may be more difficult to move and / or break (i.e., cut), such as growths, compacted soil, rocks, etc. Higher stiffness can reduce bending and provide inertial impact to move tougher debris. The second bristles 340 arranged together (e.g., in groups or adjacent to each other) can more effectively grip and / or break down tougher debris.

[0070] As discussed above, bristles 300 may extend from block segment 200 at an angle to an axis generally parallel to the central axis 20 of the grooved broom 100. The angles, positions, stiffness, materials, diameters, lengths, cross-sectional geometries, and combinations thereof of bristles 300 can create patterns to adapt the grooved broom 100 to various surfaces for cleaning. For example, grooved surfaces that may be difficult to clean can be effectively cleaned by the second bristles 340 (which may be stiffer) (e.g., because debris may be compacted due to irregular cleaning, and / or because the surface itself is difficult to reach). Thus, in some aspects, the second bristles 340 may be positioned radially outside the first bristles 330 to reach the grooved surface. Angling the second bristles 340 can further assist the grooved broom 100 in targeting such debris. In other aspects, the second bristles 340 may additionally or alternatively be positioned radially inside the first bristles 330 to target debris on the ground.

[0071] refer to Figure 10A-15 As discussed above, the grooved broom 100 can be segmented, such that it can include one or more block segments 200. In some aspects, each block segment may have the same or different array 269, the same or different opening 260 structure, and / or the same or different bristle 300 positioning (including the positioning of the first bristle 330 and / or the second bristle 340). This can additionally define the pattern to adapt the grooved broom 100 to a variety of surfaces for cleaning. The different patterns of the grooved broom 100 will now be described in detail.

[0072] like Figures 10A-10B As shown, in some aspects, each block segment 200 of the grooved broom 100 may include openings 260 arranged in a first row 266 and a second row 267. In some aspects, the block segment 200 may have about 31 openings 260. As discussed above, in some aspects, the first row 266 may have more openings 260 than the second row 267. Thus, the first row 266 may have about 16 openings 260, and the second row 267 may have about 15 openings 260. Each opening 260 in each first row 266 may receive and support bristles 300. In some aspects, both a first bristle 330 having a first stiffness and a second bristle 340 having a second stiffness greater than the first stiffness may be positioned in the openings 260. In one aspect, the second bristles 340 may be positioned in a plurality of openings 260 arranged in the second row 267. In one aspect, approximately four second bristles 340 can be positioned in the openings 260 arranged in the second row 267. Therefore, the first bristles 330 can be positioned in the remaining openings 260 in the second row 267 and / or the first row 266. In this way, in column 268, the second bristles 340 can be located radially outside the first bristles 330.

[0073] In one aspect, four of the openings 260 in the second row 267 may include second bristles 340. In another aspect, the second bristles 340 may be alternately positioned in the openings 260 of the second row 267 such that they are adjacent only to the first bristles 330 in the second row 267. In another aspect, as the grooved broom 100 rotates about the central axis 20, the adjacently positioned first bristles 330 and second bristles 340 may move together. The adjacent first bristles 330 and second bristles 340 may reinforce each other and be prevented from spreading by distributed radial supports. In this way, the first bristles 330 and second bristles 340 may be held in their approximate positions. In a further aspect, the second bristles 340 may be positioned in the openings 260 of the second row 267 such that at least two openings 260 containing the first bristles 330 are positioned between each opening 260 containing the second bristles 340. In another aspect, each of the openings 260 in the first row 266 may contain a first bristle 330. In a separate aspect, one or more of the openings 260 in the first row 266 may contain a second bristle 340.

[0074] refer to Figure 11A-11B In one aspect, four of the openings 260 in the second row 267 may include second bristles 340. In another aspect, two consecutive openings 260 in the second row 267 may include second bristles 340. An opening 260 positioned adjacent to the two consecutive openings 260 may include first bristles 330. In one aspect, the second bristles 340 may be positioned alternately and consecutively in the second row 267 such that each second opening 260 containing second bristles 340 is adjacent to only one other second bristle 340. Including two consecutive openings 260 in the second row 267 with second bristles 340 may allow the second bristles 340 to support each other to generate more abrasive contact on the cleaning surface. In another aspect, each of the openings 260 in the first row 266 may include first bristles 330. In a separate aspect, one or more openings in the openings 260 in the first row 266 may include second bristles 340.

[0075] refer to Figure 12A-12BIn one aspect, four of the openings 260 in the second row 267 may include second bristles 340. In another aspect, four or more openings 260 including second bristles 340 may be sequentially positioned in the second row 267 such that all openings 260 containing second bristles 340 are adjacent to each other. In this way, adjacent second bristles 340 with greater second stiffness can reinforce each other to produce more abrasive contact. Additionally, adjacent first bristles 330 spanning, for example, the first row 266 may reinforce the second bristles 340 and prevent spread-out by distributed radial supports. In another aspect, each opening in the openings 260 in the first row 266 may include a first bristle 330. In a separate aspect, one or more openings in the openings 260 in the first row 266 may include second bristles 340.

[0076] refer to Figure 13 In one aspect, the grooved broom 100 may include a plurality of block segments 200. In some aspects, the plurality of block segments 200 may have a first bristle 330 and a second bristle 340 of the same pattern in the opening 260. In other aspects, the grooved broom 100 may include bristles with different patterns (e.g., Figure 10A , 11A Multiple block segments 200 of the first bristle 330 and the second bristle 340 (or any of the patterns in 12A). During the service life of the grooved broom 100, the different patterns of the block segments 200 can be varied as needed to change the contact with debris and surfaces.

[0077] refer to Figure 14-15 In one aspect, one or more block segments 200 may have a first bristle 330 and a second bristle 340 of substantially the same pattern, while other block segments 200 may have a first bristle 330 and a second bristle 340 of different patterns. Other block segments 200 may have the same or different patterns of first bristle 330 and second bristle 340.

[0078] like Figure 14 As shown, according to Figure 10A As shown, the grooved broom 100 may include: first and second block segments 200 having openings 260 containing only first bristles 330; and third and fourth block segments 200 having openings 260 containing first bristles 330 and second bristles 340.

[0079] like Figure 15 As shown, the grooved broom 100 may include: two or more block segments 200, each block segment having an opening 260, the opening containing a first bristle 330 and a second bristle 340 according to the same pattern, for example... Figure 10A , 11AOr any of the modes shown in 12A; and another block segment 200, which contains another different mode, for example Figure 10A , 11A Or another pattern shown in Figure 12A. In one aspect, the trench broom 100 may include two or more block segments 200 according to the pattern shown in Figure 12 and according to Figure 10A Another block segment 200 of the pattern shown.

[0080] like Figure 16 As shown, a grooved broom 100 may include one or more block segments 200 having openings 260, the openings containing first bristles 330 and second bristles 340 according to the same pattern (e.g., about four to about five block segments 200). In this respect, each block segment 200 may include two or more openings 260 (e.g., three openings), the openings including second bristles 340 continuously positioned in a second row 267 such that all openings 260 containing second bristles 340 are adjacent to each other. In some aspects, two or more openings 260 including second bristles 340 may be continuously positioned in a second row 267 such that they are commonly adjacent to an opening 260 including first bristles 330 at the outer end 292 of the block segment 200. In some aspects, each of the one or more block segments 200 may have a plurality of groups consisting of two or more openings 260, the openings including second bristles 340 continuously positioned in a second row 267. In this aspect, each of a group consisting of three or more openings 260 including second bristles 340 continuously positioned in the second row 267 may be commonly adjacent to an opening 260 including first bristles 330 on the outer end 292 of the block segment 200. Thus, the second row 267 may include one or more groups consisting of second bristles 340 continuously positioned in the second row 267. In some aspects, the block segment 200 may have approximately 31 openings 260 and each block segment 200 may have two groups consisting of three openings 260 including second bristles 340 continuously positioned in the second row 267, each group being separated by at least six openings 260 (e.g., eight openings 260) including second bristles 330.

[0081] In some aspects, the block segment 200 may include 0.635 cm (0.25 in) of super-forged cable. In some aspects, the second bristle 340 may include approximately 15 to approximately 40 super-forged cables, for example, approximately 24 super-forged cables. In some aspects, any of the contemplated modes may include the second bristle 340 having a length of approximately 50 mm to approximately 90 mm, for example, approximately 65 mm to approximately 85 mm, for example, approximately 65 mm to approximately 80 mm, for example, approximately 66 mm (e.g., 26 in). In some aspects, the second bristle 340 may be approximately 2 cm to approximately 3 cm longer than the first bristle 330, for example, approximately 2.54 cm (e.g., 1 in). In some aspects, the second bristle 340 being longer than the first bristle 330 may improve cleaning efficiency performance at the beginning of its service life. For example, the second bristles 340 can scrape the surface better (e.g., harder), while the first bristles 330 remain less stiff and are more flexible.

[0082] Based on testing, the grooved broom 100, for example Figure 16 The trench broom 100 provided improves the cleaning of growth (e.g., vegetation and / or dirt / soil). The trench broom 100 can also effectively clean an area in one pass 90% of the time. In contrast, a conventional trench broom 100 requires at least three passes to effectively clean an area. Furthermore, the trench broom 100 has a lifespan at least 2 to 2.5 times that of a conventional trench broom. For example, a conventional trench broom has a lifespan of approximately 30 to 40 hours before needing replacement. This is likely because conventional trench brooms require multiple passes over difficult areas, such as areas with growth that needs cleaning. The trench broom 100 has a lifespan extended by 2 to 2.5 times (e.g., 60 to 80 hours before needing replacement) and also includes modular components that can be inspected and / or replaced as needed. The significant increase in lifespan is partly due to the more effective cleaning of difficult areas with growth in the first pass. Testing between the trench broom 100 and conventional trench brooms includes comparing RPM and constant load on a constant surface (e.g., cinder blocks on a concrete structure).

[0083] In some aspects, the second bristles 340 may include forged cables with a polymer coating. In some aspects, based on testing, the unspread cables including the second bristles 340 perform better than conventional trench broom inserts in cleaning areas including growth (e.g., vegetation and / or dirt / mud cleaning). In these aspects, based on testing, the broom segments 200 remain intact.

[0084] It should be understood that the detailed description section, rather than the summary and abstract section, is intended to interpret the claims. The summary and abstract section may set forth one or more, but not all, exemplary aspects of the invention as conceived by the inventors, and is therefore not intended to limit the invention and the appended claims in any way.

[0085] The invention has been described above using functional building blocks that illustrate implementations of specific functions and their relationships. For ease of description, the boundaries of these functional building blocks are arbitrarily defined herein. Alternative boundaries can be defined as long as the specified functions and their relationships are properly performed.

[0086] The foregoing description of specific aspects so fully reveals the general nature of the invention that, without departing from the overall conception of the invention, others can readily modify and / or adapt these specific aspects to various applications by applying knowledge within the scope of the art, without excessive experimentation. Therefore, based on the teachings and guidance presented herein, such adaptations and modifications are intended to fall within the meaning and scope of equivalents of the disclosed aspects. It should be understood that the terminology or language used herein is for descriptive rather than limiting purposes, and that the terminology or language used in this specification will be interpreted by those skilled in the art based on the teachings and guidance.

[0087] The breadth and scope of this invention should not be limited to any of the exemplary aspects described above, but should be defined solely by the appended claims and their equivalents.

Claims

1. A block segment for a trench broom, comprising: An opening for receiving bristles extends through the block segment in the thickness direction from the top surface to the bottom surface of the block segment, the opening being arranged in an outer row and an inner row located radially inside the outer row; The brush bristles are positioned in the opening and include a first bristle having a first stiffness and a second bristle having a second stiffness greater than the first stiffness, the second bristles being positioned only in the outer row, the first bristles being positioned in the inner row and positioned adjacent to the second bristles in the outer row. and A wall extending laterally within each opening, with corresponding bristles positioned in the opening forming a U-shape around the wall such that a first side and a second side of the bristles are positioned on opposite sides of the wall.

2. The block segmentation according to claim 1, wherein, The second cross-sectional area of ​​the second bristle is greater than the first cross-sectional area of ​​the first bristle.

3. The block segmentation according to claim 1, wherein, The first bristles have a first cross-sectional area with a first geometry, and The second bristle has a second cross-sectional area with a second geometry that is different from the first geometry.

4. The block segmentation according to claim 1, wherein, The second diameter of the second bristle is greater than the first diameter of the first bristle.

5. The block segmentation according to claim 1, wherein, The first bristles comprise a first material having a first elastic modulus, and The second bristles comprise a second material having a second elastic modulus greater than the first elastic modulus.

6. The block segmentation according to claim 1, wherein, The first bristles comprise a first material having a first elastic modulus, and The second bristles comprise a second material having a second elastic modulus, wherein the first elastic modulus and the second elastic modulus are equal.

7. The block segmentation according to claim 1, wherein, The second bristles include at least one of an outer layer, a coating, and ribs.

8. The block segmentation according to claim 1, wherein, The first bristles and the second bristles comprise metal.

9. The block segmentation according to claim 1, wherein, One of the openings extends through the block segment in the thickness direction from the top surface to the bottom surface of the block segment at an angle to an axis parallel to the central axis of the grooved broom, and The bristles extend outward from the bottom surface of the block segment at the angle described.

10. The block segmentation according to claim 1, wherein, The first bristle is positioned adjacent to the second bristle.

11. The block segmentation according to claim 1, wherein, The first bristle includes a first cross-sectional geometry, and the second bristle includes a second cross-sectional geometry different from the first cross-sectional geometry.

12. The block segmentation according to claim 1, wherein, The first bristles comprise a greater number of individual bristles than the second bristles.

13. A block segment for a trench broom, comprising: Multiple bristle openings are arranged in multiple rows, the multiple rows including an outer row and an inner row located radially inside the outer row, and the bristle openings extend through the block segment in the thickness direction from the top surface of the block segment to the bottom surface of the block segment. and The brush bristles include a first bristle having a first stiffness and a second bristle having a second stiffness greater than the first stiffness, the outer row including the first bristle adjacent to the second bristle, the inner row including the first bristle such that at least one inner row opening including the first bristle is radially adjacent to at least one outer row opening including the second bristle, the second bristle being positioned in the outer row, the first bristle being positioned in the outer row adjacent to the second bristle and in the inner row being positioned radially inside the second bristle.

14. The block segmentation according to claim 13, further comprising 20 to 40 openings, in, The second bristles are positioned in four to eight openings within the opening.

15. The block segmentation according to claim 14, wherein, At least two of the openings contain the second bristles adjacent to each other in the outer row.

16. The block segmentation according to claim 14, wherein, The first bristle is positioned in the remaining opening.

17. The block segmentation according to claim 16, wherein, Each of the second bristles is positioned adjacent to at least one of the first bristles.

18. The block segmentation according to claim 16, wherein, Each of the first bristles is adjacent to at least one other bristle in the first bristle.

19. A block segment for a trench broom, comprising: An opening extends through the block segment in the thickness direction from the top surface to the bottom surface of the block segment and is disposed between the outer edge and the inner edge of the block segment; A first bristle, positioned in the opening, having a first stiffness; A wall extending laterally within each opening, with corresponding bristles positioned in the opening forming a U-shape around the wall such that a first side and a second side of the bristles are positioned on opposite sides of the wall; A bristle receiving member, the bristle receiving member being integrally formed with the outer edge of the block segment; and The second bristle has a second stiffness greater than the first stiffness and is positioned in the bristle receiver.

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