Tabletop circular saw device with integrated multi-stage filter system

Abstract

This relates to facilitating dust collection within a tabletop circular saw device via a multi-stage filter system. [Solution] Various embodiments of a tabletop circular saw are disclosed. In a first embodiment, the tabletop device comprises a sliding table having an opening that allows a detachable fence to be attached to the sliding table. In another embodiment, the detachable fence comprises a housing, a locking mechanism, and a locking peg that causes the locking mechanism to switch the locking peg between a locked position and an unlocked position. In yet another embodiment, the tabletop device comprises a circular saw blade, a sliding table, and a detachable fence, where the sliding table has an opening that allows the detachable fence to be attached to the sliding table.

Description

Technical Field

[0001] Cross - Reference to Related Applications This application claims the benefit of U.S. Provisional Patent Application No. 62 / 967,007, filed on January 28, 2020, with the title "Table Saw Apparatus with an Integrated Multi - Stage Filter System", the entire content of which is incorporated herein by reference.

[0002] Technical Field The present disclosure generally relates to dust collection, and more specifically, to facilitating dust collection within a table saw apparatus via a multi - stage filter system.

Background Art

[0003] When using conventional power saws, the release of airborne dust and particulate matter generated when cutting a workpiece is a problem. The health hazards associated with inhaling such dust are particularly concerning. The development of wet cutting devices is one solution to dust reduction, where water is applied to the cutting edge of the blade to entrain the dust in a liquid and guide it to a holding area. Many wet cutting methods function relatively well, but new problems such as wastewater pollution and environmental concerns arise. For example, conventional masonry and tile saws typically have a water tank or pan with a pump to supply water to the cutting head. When the saw cuts, water is sprayed and dispersed around the cutting area of the saw. Since this water drips, atomizes, and spills, the power saw cannot be placed near the location where actual masonry or tile installation is being performed. Thus, the user has to spend a significant amount of time going back and forth between the power saw and the installation location.

[0004] Therefore, a dry power saw that prevents dust from escaping into the environment is desired. It should be noted that for this purpose, the above problems are intended to simply provide some general outlines of the problems of conventional systems and are not intended to be comprehensive. By considering the following detailed description, other problems in the relevant technical field and some corresponding advantages of various non - limiting embodiments will become more apparent. [Overview of the Initiative]

[0005] A simplified overview is provided herein to enable a basic or general understanding of the various aspects of the exemplary and non-limiting embodiments described in the following detailed description and accompanying drawings. However, this overview is not intended to be extensive or comprehensive. Rather, its sole purpose is to present in a simplified form some concepts related to some exemplary and non-limiting embodiments as a prelude to the detailed description of the various embodiments described below.

[0006] Various non-limiting embodiments of a tabletop circular saw device are described according to one or more embodiments and corresponding disclosures. In one such embodiment, a tabletop device is disclosed for facilitating cuts of various dimensions. In such an embodiment, the device comprises a circular saw blade and a sliding table configured to slide along the side of the circular saw blade. Here, the sliding table has a plurality of openings, each of which is configured to facilitate the coupling of a detachable fence to the sliding table.

[0007] In a further embodiment, a detachable fence device is disclosed. In this embodiment, the detachable fence device comprises a housing, a locking mechanism coupled to the housing, and a locking peg coupled to the locking mechanism and extending toward the bottom of the housing. Here, the locking mechanism is configured to toggle the locking peg between a locked position and an unlocked position, so that the detachable fence can be attached to a benchtop in the locked position and removed from the benchtop in the unlocked position.

[0008] In yet another embodiment, a tabletop device is disclosed which comprises a circular saw blade, a sliding table configured to slide along the side of the circular saw blade, and a detachable fence. In this embodiment, the sliding table comprises a plurality of openings, and the detachable fence is configured to attach to and detach from the sliding table via a subset of the plurality of openings.

[0009] Other embodiments and various non-limiting examples, scenarios, and implementation examples are described in more detail below. [Brief explanation of the drawing]

[0010] Various non-limiting embodiments will be further described with reference to the attached drawings. [Figure 1] Figure 1 is a photograph showing a first perspective view of a tabletop circular saw according to one embodiment of this specification. [Figure 2] Figure 2 is a photograph showing a second perspective view of a tabletop circular saw according to one embodiment of this specification. [Figure 3] Figure 3 is a photograph showing a bottom view of a tabletop circular saw according to one embodiment of this specification. [Figure 4] Figure 4 is a series of photographs illustrating how to use a tabletop circular saw according to one embodiment of this specification. [Figure 5] Figure 5 is a photograph showing a cross-section of an exemplary dust guard according to one embodiment of this specification. [Figure 6] Figure 6 is a photograph showing a second exemplary dust guard according to one aspect of this specification. [Figure 7] Figure 7 is a series of photographs showing various configurations of an exemplary detachable fence according to one aspect of this specification. [Figure 8] Figure 8 is a series of photographs showing various illustrations of an exemplary detachable fence according to one aspect of this specification. [Figure 9] Figure 9 is a series of photographs illustrating the adjustment of an exemplary detachable fence configuration according to one aspect of this specification. [Figure 10] Figure 10 is a schematic diagram of an exemplary small fence according to one embodiment of this specification. [Figure 11] Figure 11 is a schematic diagram of an exemplary horizontal fence adjustment mechanism according to one aspect of this specification. [Figure 12] Figure 12 is a schematic diagram of an exemplary rotating fence adjustment mechanism according to one aspect of this specification. [Figure 13] Figure 13 shows a bottom view of an exemplary small fence configuration according to one embodiment of this specification. [Figure 14] Figure 14 shows an exploded view of an exemplary small fence configuration provided in Figure 13. [Figure 15] Figure 15 shows an exemplary miniature fence configuration provided in Figure 13, according to one aspect of this specification, mounted on a sliding table. [Figure 16] Figure 16 is a series of photographs illustrating the removal of an exemplary spindle according to one aspect of this specification. [Figure 17] Figure 17 is a perspective view from the upper right of the front of a tabletop saw equipped with the blade guard and sliding fence of the present invention, with the sliding fence perpendicular to the blade guard. [Figure 18] Figure 18 is a front view of the table saw equipped with the blade guard and sliding fence shown in Figure 17. [Figure 19] Figure 19 is a rear view of the table saw equipped with the blade guard and sliding fence shown in Figure 17. [Figure 20] Figure 20 is a right side view of the table saw equipped with the blade guard and sliding fence shown in Figure 17. [Figure 21] Figure 21 is a left side view of the table saw equipped with the blade guard and sliding fence shown in Figure 17. [Figure 22] Figure 22 is a plan view of the table saw equipped with the blade guard and sliding fence shown in Figure 17. [Figure 23] Figure 23 is a bottom view of the table saw equipped with the blade guard and sliding fence shown in Figure 17. [Figure 24]FIG. 24 is a perspective view from the upper right front of a table saw having the blade guard and the sliding fence of FIG. 17, and the sliding fence is at an angled orientation with respect to the blade guard. [Figure 25] FIG. 25 is a perspective view from the upper right front of a table saw having the blade guard and the sliding fence of FIG. 17, and is a view in which the sliding fence is parallel to the blade guard.

DETAILED DESCRIPTION OF THE INVENTION

[0011] Overview Various embodiments disclosed herein are directed to dust collection within a tabletop circular saw apparatus via a multi-stage filter system. Referring to FIGS. 1 - 3, various photographs are provided showing different views of an exemplary tabletop circular saw according to one aspect of the present specification. As shown, the tabletop circular saw 100 includes a dust guard 110, a circular saw blade 120, a sliding table 130, a multi-purpose motor 140, a vacuum 150, a cylindrical filter 160, and a cyclone filter 170. Although described in more detail below with reference to the remaining drawings, it is contemplated that the work table 120 includes a central slot that is axially aligned with the circular saw blade 120. In use, the vacuum 150 is configured to provide a negative pressure to the tabletop circular saw 100 at the central slot, while the cylindrical filter 160 and the cyclone filter 170 are configured to collect dust in the air drawn in by the negative pressure from a region near the central slot.

[0012] Various embodiments of the tabletop circular saw 100 are conceived and disclosed herein. For example, in a first embodiment, a multipurpose motor 140 may be used to simultaneously drive both the circular saw blade 120 and the vacuum 150. In such embodiments, the multipurpose motor 140 may be coupled to a circuit that protects against sudden fluctuations in current and voltage during use. Such fluctuations may occur, for example, when the circular saw blade 120 begins to make contact with the workpiece and / or when the vacuum 150 reacts to fluctuations in airflow conditions (e.g., when the cylindrical filter 160 and / or cyclone filter 170 become clogged). In a particular implementation example, the circuit coupled to the multipurpose motor 140 monitors the combined current / voltage of the circular saw blade 120 and the vacuum 150, as well as the individual current / voltages of the circular saw blade 120 and the vacuum 150. In such embodiments, if the combined current / voltage of the circular saw blade 120 and the vacuum 150 exceeds a first threshold, the circuit is configured to keep it below a second threshold by reducing the current / voltage supplied to one component and allowing the other component to supply the increased current / voltage it requires. For example, a short spike in current / voltage may occur when the circular saw blade 120 first makes contact with the workpiece. During that short spike, the current / voltage to the vacuum 150 can be reduced to allow the increased current / voltage to be supplied to the circular saw blade 120 so that the combined current / voltage does not exceed an unacceptable value.

[0013] Various other embodiments are also disclosed herein and are described in more detail below. For example, the dust guard 110 may be configured to capture airborne dust generated from the rear of the circular saw blade 120 as the circular saw blade 120 rotates (see, for example, Figures 4-6). It is also conceivable that a detachable fence may be coupled to the slide table 130 according to different configurations to achieve different desired cuts (see, for example, Figures 7-15). In another embodiment of this disclosure, the vacuum 150 may be equipped with a rotary spindle that facilitates the removal of the cylindrical filter 160 (see, for example, Figure 16).

[0014] Exemplary dust guard embodiment Next, referring to Figures 4 to 6, various embodiments of the dust guard are shown according to the embodiments disclosed herein. For example, Figure 4 provides a series of photographs showing how to use the tabletop circular saw 100. As shown, the dust guard 110 is rotatable from the rear toward the circular saw blade 120, and the dust guard 110 is intended to substantially surround the circular saw blade 120. When the circular saw blade 120 rotates during use, dust is ejected from the rear of the circular saw blade 120 onto the tabletop circular saw 100. In certain embodiments disclosed herein, the dust ejected from the rear of the circular saw blade 120 passes through the dust guard 110 along the dust path shown in Figure 5 and is led to the heavy debris chute 105. As a result, airborne dust from the rear of the circular saw blade 120 is preferably collected within the tabletop circular saw 100 rather than being released into the atmosphere which could harm the user. It should be understood that the dust guard 110 may have bent holds to improve circulation. Also, in the configuration of the dust guard 110 shown in Figure 5, the dust follows a vertical path after exiting the rear of the circular saw blade 120, but the dust guard 110 may be configured so that the dust follows a lateral path after exiting the rear of the circular saw blade 120.

[0015] In an alternative embodiment, instead of circulating dust from the rear of the circular saw blade 120 through the path of the dust guard 110, an auxiliary vacuum attachment is intended to be used. That is, as shown in Figure 6, the dust guard 112 may be coupled to an auxiliary vacuum 114, which is configured to suck up dust that is thrown up from the rear of the tabletop circular saw 100 while the circular saw blade 120 is in use.

[0016] Exemplary Embodiment of a Detachable Fence Next, referring to Figures 7-12, various embodiments of the detachable fence are shown according to the embodiments disclosed herein. For example, Figure 7 provides a series of photographs showing various configurations of an exemplary detachable fence. It is intended that at least each of horizontal, vertical, and angled configurations may be provided, as shown. That is, the detachable fence 180 is intended to be coupled to a slide table 130 according to different configurations to achieve different cuts desired by the user. In this particular embodiment, the slide table 130 has a plurality of stabilization holes 132 and a plurality of locking holes 134, as shown. Here, the spacing between the plurality of stabilization holes 132 and the plurality of locking holes 134 may vary, but the spacing shown includes various horizontal spacing options (e.g., 1-inch spacing) and two angled spacing options (e.g., 45 degrees and 22.5 degrees).

[0017] Referring next to Figure 8, a series of photographs are provided showing various diagrams of an exemplary detachable fence according to one aspect of this specification. As shown, the detachable fence 180 may comprise a stabilizing peg 182, a locking peg 184, and a knob 186. In such an embodiment, it is intended that the detachable fence 180 may be configured to be attached to a slide table 130 via the stabilizing peg 182 and the locking peg 184. That is, the locking peg 184 can be inserted into either of the locking holes 134, the detachable fence 180 is securely coupled to the slide table 130 by twisting the knob 186, and the detachable fence 180 is stationary on the slide table 130 by inserting the stabilizing peg 182 into the corresponding stabilizing hole 132. This exemplary procedure over time is shown in Figure 9, where the detachable fence 180 is moved from a horizontal configuration to a vertical configuration.

[0018] In another embodiment, a “miniature fence” is intended for cases where cuts requiring fine adjustments are desired. For example, as shown in Figure 10, a detachable miniature fence 190 having a knob 196 is intended, which may be substantially similar to a detachable fence 180 having a knob 186. However, in this particular example, the detachable miniature fence 190 is half the width of the detachable fence 180. Therefore, if the stabilization hole 132 and the lock hole 134 are, for example, 1 inch apart, the detachable miniature fence 190 can be used to achieve cuts in 0.5-inch increments.

[0019] Next, referring to Figures 11-12, alternative fence adjustment mechanisms are envisioned. For example, Figure 11 is a schematic diagram of an exemplary horizontal fence adjustment mechanism according to one aspect of this specification. In this embodiment, the slide table 230 has first and second stabilizing openings 232 and 236, as well as a locking opening 234, as shown. Here, the detachable fence 280 is configured to slide along the locking opening 234 and the stabilizing openings 232, 236, and locking pegs and stabilizing pegs are intended to be used to secure the detachable fence 280 to the slide table 230 (for example, by locking the detachable fence 280 via a knob 286).

[0020] As shown in Figure 12, a sliding mechanism for adjusting the rotating fence is also intended. In this embodiment, a first stabilizing peg secures the detachable fence 280 at a fixed pivot point, a locking peg slides within a locking opening 233, and a second stabilizing peg slides within a stabilizing opening 235. The detachable fence 280 can then be fixed onto the sliding table 230 using the locking peg and the second stabilizing peg (for example, by locking the detachable fence 280 via a knob 286).

[0021] In a further embodiment, yet another embodiment of a “miniature fence” is envisioned for cases where cuts requiring fine adjustment are desired. Here, a detachable fence is envisioned in which fine adjustment is performed via a movable wall. Exemplary configurations of such embodiments are provided in Figures 13-15. As shown, the detachable fence 300 is envisioned to have a movable wall 330 coupled to the side of a housing 310. In this particular embodiment, the detachable fence 300 further comprises an adjustment knob 320, which is configured such that when the adjustment knob 320 is turned in a first direction, the movable wall 330 is pushed away from the housing 310, and when the adjustment knob 320 is turned in the opposite direction, the adjustment knob 320 pulls the movable wall toward the housing. The detachable fence 300 also comprises at least one arm 350, the first end of which at least one arm 350 may be coupled to the adjustment knob 320, and the opposite end of which at least one arm 350 may be coupled to the movable wall 330. As shown in the figures, the detachable fence 300 further comprises at least one arm 360, the first end of which may be coupled to a stabilizing peg 380, and the opposite end of which may be coupled to a movable wall 330. To enable the measurement of fine adjustments disclosed herein, the detachable fence 300 is further intended to have demarcations indicating the extent to which the movable wall 330 is extended from the housing 310.

[0022] Various other embodiments of the detachable fence 300 are also conceivable. For example, the locking mechanism of the detachable fence 300 may be a lever 340 located on the side of the housing 310, rather than a knob. In such embodiments, a spring may be coupled to the lever 340 so as to provide resistance when the lever 340 pushes the lock peg 370 to the unlocked position, and so as to pull the lock peg 370 back to the locked position when the lever 340 is released (i.e., when the lever is twisted over the lock peg 370).

[0023] Exemplary Embodiment of a Rotary Spindle Referring next to Figure 16, a series of photographs are provided showing an exemplary spindle removal according to one aspect of this specification. Here, the vacuum 150 is intended to include a rotary spindle 152 that enables easy removal of the cylindrical filter 160. As shown, the rotary spindle 152 may have a male notch 154 configured to engage with a female notch 164 of the coupling portion 162.

[0024] In this publication, the term “exemplary” is used to mean an example, illustration, or useful for explanation. To avoid misunderstanding, the subject matter disclosed herein is not limited by such examples. Furthermore, any aspect or design described herein as “exemplary” should not necessarily be construed as being preferable or advantageous to other aspects or designs, nor should it preclude equivalent exemplary structures and techniques known to those skilled in the art. Furthermore, to the extent that the terms “encompass,” “possess,” “equip,” and other similar terms are used in either the detailed description or the claims, to avoid doubt, such terms are used in an open manner similar to the term “include,” without excluding additional or other elements.

[0025] The aforementioned systems have been described in terms of the interactions between several components. It can be understood that such systems and components may include these components, designated subcomponents, parts of designated components or subcomponents, and / or additional components, according to the various permutations and combinations described herein. Subcomponents may also be implemented as components combined with other components, rather than being contained within a parent component (hierarchy). Furthermore, it should be noted that one or more components may be combined into a single component that provides an aggregated function, or they may be divided into several separate subcomponents, and any one or more intermediate layers may be provided to combine with such subcomponents and provide integrated functionality. Any component described herein may also interact with one or more other components that are not specifically described herein but are generally known to those skilled in the art.

[0026] In light of the exemplary system described above, the methodology that can be implemented in accordance with the disclosed subject matter can be understood by referring to various diagrams. For the sake of simplicity, the methodology is described as a series of steps, but it will be understood and anticipated that the disclosed subject matter is not limited by the order of the steps, as some steps may occur in a different order than those described herein and / or concurrently with other steps. Furthermore, not all of the disclosed steps are required to implement the methodology described below.

[0027] While various embodiments have been described in relation to the exemplary embodiments shown in various figures, it should be understood that other similar embodiments may be used, or may be made to perform the same function without modification or addition to the embodiments described. No deviation therefrom. Therefore, the present invention should not be limited to any single embodiment.

Claims

1. It is a desktop device, A circular saw blade, A tabletop device comprising a slide table configured to slide along the side surface of the circular saw blade, wherein the slide table has a plurality of openings, each of which is configured to allow a detachable fence to be connected to the slide table.

2. The desktop device according to claim 1, wherein the plurality of openings include a plurality of stabilization holes and a plurality of locking holes, the plurality of stabilization holes are configured to keep the detachable fence stationary on the slide table, and the plurality of locking holes are configured to lock the detachable fence on the slide table.

3. The desktop device according to claim 2, wherein a subset of the plurality of stabilization holes and the plurality of lock holes are arranged at equal intervals on the slide table in a vertical configuration, and the subset is positioned at a variable distance from the edge of the slide table so that the detachable fence can be connected to the slide table.

4. The desktop device according to claim 2, wherein the plurality of stabilization holes and subsets of the plurality of locking holes are spaced apart on the slide table in an angled configuration, and the subsets enable the detachable fence to be attached to the slide table at a variable angle from the edge of the slide table.

5. The desktop device according to claim 1, wherein the plurality of openings include a plurality of holes aligned horizontally on the bottom edge of the slide table, and the plurality of holes allow the detachable fence to be connected to the slide table in a horizontal configuration.

6. A detachable fence device, Housing and A locking mechanism coupled to the housing, A detachable fence device comprising a locking peg coupled to the locking mechanism and extending toward the bottom of the housing, wherein the locking mechanism is configured to switch the locking peg between a locked position and an unlocked position, the detachable fence being attached to a tabletop device in the locked position, and the detachable fence being detachable from the tabletop device in the unlocked position.

7. A first stabilizing peg is positioned at the bottom of the first end of the housing, The detachable fence device according to claim 6, further comprising a second stabilizing peg positioned at the bottom of the second end of the housing.

8. The detachable fence device according to claim 6, wherein the locking mechanism is a knob located on the upper part of the housing, and the knob is configured to twist the lock peg to either the locked position or the unlocked position.

9. The detachable fence device according to claim 6, wherein the locking mechanism is a lever located on the side of the housing.

10. The detachable fence device according to claim 9, further comprising a spring connected to the lever, the spring configured to provide resistance when the lever pushes the lock peg to the unlocked position, and the spring configured to pull the lock peg back to the locked position when the lever is released.

11. Furthermore, a movable wall is connected to the side of the housing, A detachable fence device according to claim 6, comprising an adjustment knob, wherein the adjustment knob is configured to push the movable wall away from the housing when the adjustment knob is twisted in a first direction, and to pull the movable wall toward the housing when the adjustment knob is twisted in the opposite direction.

12. The detachable fence device according to claim 11, further comprising at least one arm, the first end of which is coupled to the adjustment knob, and the opposite end of the at least one arm is coupled to the movable wall.

13. The detachable fence device according to claim 11, further comprising at least one arm, the first end of which is coupled to a stabilizing peg, and the opposite end of the at least one arm is coupled to the movable wall.

14. The detachable fence device according to claim 11, further comprising a measuring demarcation indicating how far the movable wall extends from the housing.

15. In a desktop device, A circular saw blade, A slide table configured to slide along the side surface of the circular saw blade, the slide table having a plurality of openings, A tabletop device comprising a detachable fence configured to be attached to and detached from the slide table via a subset of the aforementioned openings.

16. The desktop device according to claim 15, wherein the plurality of openings include a plurality of stabilization holes and a plurality of locking holes, the plurality of stabilization holes are configured to keep the detachable fence stationary on the slide table, and the plurality of locking holes are configured to lock the detachable fence on the slide table.

17. The desktop device according to claim 16, wherein a subset of the plurality of stabilization holes and the plurality of lock holes are arranged at equal intervals on the slide table in a vertical configuration, and the subset is positioned at a variable distance from the edge of the slide table so that the detachable fence can be connected to the slide table.

18. The desktop device according to claim 16, wherein a subset of the plurality of stabilization holes and the plurality of locking holes are spaced apart on the slide table in an angled configuration, and the subset allows the detachable fence to be attached to the slide table at a variable angle from the edge of the slide table.

19. The desktop device according to claim 15, wherein the detachable fence comprises a locking peg coupled to a locking mechanism, the locking mechanism is configured to switch the locking peg between a locked position and an unlocked position, the detachable fence is mounted on the slide table in the locked position, and the detachable fence can be removed from the slide table in the unlocked position.

20. The detachable fence comprises a housing, and the detachable fence further comprises A movable wall connected to the side of the housing, The desktop device according to claim 19, comprising an adjustment knob, wherein the adjustment knob is configured to push the movable wall away from the housing when the adjustment knob is twisted in a first direction, and to pull the movable wall toward the housing when the adjustment knob is twisted in the opposite direction.

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